1. A packaged soft cling female condom (1, l', I"), comprising: a pouch (10, lo', 10") of resilient membranous material having an open end, a closed end, an outer surface and an inner surface; and at least one hydrophilic cling element (15, 15', 15") attached to said outer surface of said pouch (10, lo', lo"), said at least one cling element (15, 15', 15") being disposed between said open end and said closed end; characterized by; ' an inserter (20, 20'' 20") attached to said pouch (10, lo', 10") for retaining a distal portion (19, 19'' 19", 34) of said pouch (1 0, 1 O', 10") and facilitating insertion of said female condom (1, 1 ', 1") into a vagina; wherein said inserter (20, 20', 20") is dissolvable -d--i-s solvable in the ,_ vaginal environment, said distil portion (19) of said pouch (10, lo', 10") is slidably retained in said inserter (20, 20', 207, and each one of said cling elements (15, 15', 15") adapted to cling lightly to walls of a vagina proximate a transition zone between the vagina's introitus and its rugated internal vaginal tissue for anchoring said pouch in or slightly beyond said introitus.

2. The female condom as claimed in claim 1, wherein said female condom includes at least three hydrophilic cling .-- --. elements.

3. The female condom as claimed in claim 2, wherein said at least three hydrophilic cling elements includes four foam cling elements to six foam cling elements.

4. The female condom as claimed in claim 2, wherein said hydrophilic cling elements are disposed in a belt-like pattern around said pouch.

5. The female condom as claimed in claim 1, wherein at least one hydrophilic cling element defines an elliptical shape.

6. The female condom as claimed in claim 1, wherein said at least one hydrophilic cling element defines a shape selected from the group consisting of a triangular shape and a circular shape.

7. The female condom as claimed in claim 1, wherein said at least one hydrophilic cling element is a polyurethane hydrophilic foam segment. by? -. /- 8. The female condom as claimed in claim 1, wherein said at I '-3 , I ' r , - least one hydrophilic cling ele-m-- ent has a total surface area of --- -"sr a -a>-. % --s..- approximately 0.75 square inches.

9. The female condom as claimed in claim 1, wherein said inserter is a cap attached to said pouch.

10. The female condom as claimed in claim 9, wherein said cap is selected from the group consisting of an elastomeric cap and a foam cap. 1 1. The female condom as claimed in claim 1, wherein a distal portion of said pouch is packed inside of said inserter.

12. The female condom as claimed in claim 11, wherein said at least one hydrophilic cling element is packed inside of said inserter.

13. The female condom as claimed in claim 1, wherein said inserter is selected from the group consisting of a band, a capsule, a spherical inserter, a envelope-shaped inserter, a bullet-tipped cylindrical inserter, and a closed-ended pouch.

14. The female condom as claimed in claim 1, wherein said inserter comprises a water-soluble material.

15. The female condom as claimed in claim 16, wherein said water-soluble material includes polyvinyl alcohol.

16. The female condom as claimed in claim 1, wherein said at least one hydrophilic cling element adheres to said pouch without imparting outward biasing force therete

17. The female condom as claimed in claim 1, wherein said inserter retains a distal portion of said pouch and said at least one cling element in a collapsed form?, said retained distal portion of the pouch in the collapsed form including: a plurality of longitudinal pleats formed in said distal end of said pouch and disposed parallel to a longitudinal axis of said l pouch; and a plurality of lateral pleats formed in said distal end of said pouch and disposed perpendicular to said longitudinal axis; wherein, upon insertion into a user's vagina, said at least one cling element deploys from said inserter and comes into walls. contact with vaginal walls for lightly clinging to said vagind , packaged female condom (1, l', c-- \ - ----c -- - --1 : I"), said female condom (1, l', 1") comprising an elongated i / pouch (10, 10: 10") having an open portion and an opposite distal portion (19, 19', 19", 34), said pouch (10, lo', 10") defining an inner cavity, said method comprising: attaching at least one hydrophilic cling element (15, 15', --4 15") to said outer surface of said poZch c l o y , 10") between said open portion and said distal portion (19, 19', 19", 34), each one of said cling elements (15, 15', 15") adapted to cling lightly to walls of a vagina proximate a transition zone between the vagina's introitus and its rugated internal vaginal tissue for anchoring said pouch in or slightly beyond said introitus; forming a plurality of longitudinal pleats (24) in -. said distal portion (19, 19', 19", 34) of said pouch (10, lo', 10") wherein said longitudinal pleats (24) are disposed parallel to a longitudinal axis of said pouch; folding said ,longitudinal pleats (24) parallel to said longitudinal axis wherein said longitudinal pleats (24) overlap said distal portion (19, 19', 19", 34); collapsing gaid distal portion (19, 19', 19", 34) of said / pouch (10, lo', 10") in a direction parallel to said longitudinal axis toward a distal end and forming lateral pleats (32) in said distal portion (19, 19', 19", 34), wherein said lateral pleats (32) are disposed perpendicular to said longitudinal axis; and placing a water-soluble inserter (20, 20', 20") about said - - -- collaps'ect-distatp5rtion for slidably retaining said distal portion of said pouch therein.

19. The method claim as claimed in claim 18, wherein the step of forming a plurality of longitudinal pleats comprises: ---C---- placing said pouch oveFk elongated mandrel wherein a portion of said mandrel is disposed within said pouch inner cavity; withdrawing air from said inner cavity wherein at least said distal portion of said pouch collapses about said mandrel; and - 21 - arranging said longitudinal pleats in said pouch.

20. The method claim as claimed in claim 19, wherein the. step of arranging comprises forming each of said pleats between , I an adjacent pair of cling elements attached to an outer side of said pouch; and wherein the step of folding comprises rotating each of said longitudinal pleats in one of a clockwise direction and a counter-clockwise direction generally about said longitudinal axis; and wherein the step of forming lateral pleats comprises sliding said distal portion about a mandrel disposed within said inner cavity; and wherein the step of placing an inserter about said collapsed distal portion comprises turning at least a portion of a cap inside-out to retain said distal portion.

21. The method as claimed in claim 18, wherein the step of attaching at least one hydrophilic cling element includes welding at least one hydrophilic cling element to said outer surface of said pouch.

22. The female in claim 1, wherein the at least one is welded to the outer surface of the pouch.

23. The female condom as claimed in claim 1, wherein the at least one hydrophilic cling element is disposed 3 inches to 4 inches from said open end.

SOFT CLING FEMALE CONDOM
This application claims priority to co-pending United States Provisional Application
Serial No. 6014 1 1,77 1, entitled "Soft Cling Female Condom," which was filed on September 19,
2002, the content of which is hereby fully incorporated by reference.
FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT
This invention was made in part with government support under Cooperative Agreement
No. DPE-5968-A-00-0025-00 awarded by the Agency for International Development. The U.S.
Government has certain rights in this invention.
TECHNICAL FIELD
The present invention relates to bariier methods of human contraception and prevention
of sexually transmitted diseases (STDs). More specifically, the invention relates to female
condoms, i.e., condoms worn by a woman or otherwise used in,a passive sexual organ such as
the vagina or anus.
BACKGROUND OF THE INVENTION
Unintended pregnancy and STDs present serious health and social consequences for
individuals and society at large. Known prevention &d protection measures have reduced these
problems to some extent. Male condoms are a well-known form of a barrier device that provide
varying degrees of protection against unintended pregnancy and STDs. Male condoins,
however, generally require the male partner to initiate use after an erection has been attained,
thus fkquently causing an awkward disruption of intimacy and foreplay. Additionally, many
women would prefer not to have to rely on their male partner to provide their protectioa Male
condoms are disliked for a variety of additional reasons, including reduced sensation for the
male partner.
Problems associated with male condoms have led to the development of various forms of
female condoms that a woman can pre-place in her vagina before intercourse. Unlike a
conventional diaphragm or cervical cap, which covers only a region of the vagina near the cervix
or the cervix itself, known female condoms generally provide a tubular receptacle extending
along the length of the vaginal canal and extending over all or some of the genitals, thereby fully
encompassing an inserted penis and affording increased protectioa Such devices
advantageously empower a woman to protect herself from unintended pregnancy and STDs,
without reliance on the male partner.
, While known female condoms provide a level of protection and advantage over ,
conventional male condoms, they do not present an ideal solution. Several problems can be
identified, Some female condoms are difficult to use and others may be uncomfortable for some
women. Both of these problems may reduce the pleasure of intercourse for both the male and
the female partner. With many designs, the outside portion of the female condom may shift and
twist excessively prior to and during initiation of intercourse. This may require the woman to
hold the outside portion with one or both hands during penis insertion, which can be disruptive
and awkward. A related problem of known female condoms is a lack of stability of the condom
within the va& canal. The condoms may move around, and fall partially out, or a portion
intended to remain outside of the vagina may be pushed inside. This lack of stability
compromises barrier protection, and may make both partners feel nervous and insecure during
intercourse. The movement of the pouch with the penis also decreases sensation of the male
partner.
Hessel U.S. Pat. Nos. 5,490,519 and 5,623,946 disclose tubular devices worn by a female
for protection against transfer of infectious matter during sexual intercourse. This general type
of condom is available commercially as the REALITY condom. These tubular devices have an
open end defined by a first ring, and a second closed end to be positioned at the distal end of the
vagina. The internal tubular portion of the condom is designed to be retained by retaining means
positioned at the closed end, e.g., a second ring. -The second ring is oriented at an acute angle
relative to first ring, and is designed to wedge or anchor around the cervix in a manner similar to
a diaphragm. In use, this ring may slip away from its anchor point and permit a portion of the
h n t part of the condom to hang or dangle outside of the woman user. Also, because the
retaining means acts at the distal end of the vagina, security of the first (outer) ring is dependent
on the length of the vaginal canal.
Evans et al. U.S. Pat. No. 4,945,923 also discloses a tubular contraceptive device to be
worn by a woman. The device includes an outer ring and an inner ring positioned at a closed
distal end of the device. The inner ring, like the Hessel devices, is designed to anchor the
bottom end of the device around the cervix of a user. It is similarly susceptible to slippage from
its cervical anchor point, and twisting or displacement during use.
3
Another type of female condom is commercially available, which is known as the
V'Arnore condom. The V'Amore condom is manufactured in India and has a design generally
similar to the REALITY condom. An outer (proximal) ring of the V'Amore condom is shieldshaped,
and retention of an inner pouch is provided by a sponge that is intended to lodge
somewhere in the distal region of the vagina near the cervix. The V'Amore condom likewise
may lack stability within the vaginal cavity, and does not assure close stable positioning of the
outer shield.
Another known type of female contraceptive device is known as a panty condom. While
providing external stability, these devices do not adequately address the need for stability of the
condom pouch within the vagina. A pouch portion of the panty condom is inserted into the
vagina, which may pull inside out, or twist or turn. This can adversely affect male paqer
sensation and compromise barrier protection. Additionally, with known panty condoms, air
tends to be pumped into the vaginal cavity during intercourse. This can be noisy and
uncomfortable for the woman. After intercourse, the devices may turn inside out during
withdrawal, thereby making a mess and increasing the potential for disease transmission and
unintended pregnancy. Additionally, the panty configuration may be objectionable to users for
aesthetic reasons.
Artsi et al. U.S. Pat. No. 5,515,862 discloses a female condom generally similar to the
aforementioned panty arrangement. The device has an extensive external shield, which is
adhesively applied to cover pubic, abdominal, groin, thigh and anal regions, and a flexible tube
extending from the shield to a closed end. Multiple rings are positioned dong the length of the
tube. One ring is used at the closed end to anchor around the cervix, similar to a diaphragm, and
additional rings placed along the length of the tube are intended to lodge against the muscular
tissue of the vaginal passage, to prevent slippage of thi: tube along the length of the vagina
during use. The disclosed "semi-rigid" intermediate rings may to some extent improve stability
of the tube in the vagina canal, yet no guidance is provided with respect to a positioning, sizing
or configuration of the intermediate rings to maximize intedexternal condom stability.
Additionally, multiple rings positioned along the length of the condom may be encountered by a
man's penis during intercourse, thus causing discomfort to the male partner.
Commonly assigned co-pending U.S. application Serial No. 09/921,016, published under
No. US-2002-0038658-A1 on April 4,2002 (the '658 application), discloses "tensegrityYb' ased
female condom designs. The disclosure of that application is incorporated herein by reference.
According to aspects of the '658 application, tensegrity-based female condoms employ
compression and tension forces to provide substantial stability of the female condom. As such,
when a tensegrity-based condom is inserted into a woman's vagina, the woman's introitus acts
on a proximal section of an elongated pouch extending between internal and e x t e d biasing
5 members (e.g., rings) of the condom. Inward compressive forces exerted by the introitus on the
inner ring of the condom. cause the inner ring to be pushed distally within the vagind canal, and
the proximal pouch section to hecome a tension member pulling against the external ring. This
causes a "tentjng" of the proximal pouch section against the introitus.
Tensegrity-based female condoms can provide a high degree of internal and external
10 stability; however, the degree of stability may vary depending on the depth of tissue of the user's
introitus. In other words, the degree of stability may vary for different sizes of women.
The '658 application further discloses an embodiment of a tensegrity-based female
condom that includes pads of resilient material, such as foam, that form an internal biasing
member of the condom. The pads may be placed on the outside of pouch material and may be
15 made of hydrophilic polyurethane, which provides mucosal cling to the user's vaginal walls.
The mucosal cling acts to increase stability of the female condom, and/or reduce reliance on the
spring action of the pad material (i.e., internal biasing member) to maintain the intermediate
section of the pouch expanded against a distal portion of the introitus. Thus, hydrophilic pads
act in concert with the tensegrity principle to provide condom stability. Depending on its size, a
20 tensegrity-based female condom is applicable to women having an introitus' depth within a
given range.
SUMMARY OF THE INVENTION
Addressing the abovedescribed issues and other issues that will become apparent when
I reading this specification, aspects of the present invention provide a female condom that can
25 engage vaginal mucosa at different depths within a user's vagina. According to an embodiment
of the invention, a female condom includes a pouch of resilient membranous materiql and a cling
mechanism. The cling mechanism is adapted to cling lightly to walls of a vagina proximate a
transition zone between the vagina's introitus and its rugated internal vaginal tissue for
anchoring the pouch in or slightly beyond the vagina's introitus. In embodiments of the
30 invention, the cling mechanism adheres to the pouch without imparting outward biasing force
thereto. According to aspects of the invention, the cling mechanism may include hydrophilic
, foam. The hydrophilic foam may have a variety of shapes that can permit the foam to nest& into
a user's rugated vaginal tissue.
Further aspects of the invention provide an insertion cap at the closed end of the pouch,
which serves to contah a distal portion of the pouch until insertion into the user's * vagina. Other
5 aspects provide a dissolvable inserter, which dissolves in the presence of vaginal moisture. In
alternate embodiments, the cling mechanism may be contained in the insertion cap or
dissolvable inserter prior to insertion into the user's vagina. According to further aspects,
methods for collapsing the pouch a d compressing it for easy insertion are provided. Other
features and advantages of various aspects of the invention will become apparent with reference
10 to the following detailed description and figures.
BRIEF DESCRIPTION OF THE DRAWINGS
The 'invention will be described in detail in the following description of -preferred
embodiments with reference to the following figures wherein: *
Fig. 1 is an elevational view of a female condom in an expanded form according to an
15 embodiment of the invention;
Fig. 2 is an elevational view of the female condom of Fig. 1 in a collapsed form;
Fig. 3 is an elevational view of a female condom in an expanded form according to
another embodiment of the invention;
Fig. 4 is an elevational view of the female condom of Fig. 3 in a collapsed form;
20 ' Fig. 5 is an elevational view of a female condom in an expanded form according to a
further embodiment of the invention;
Fig. 6 is an elevational view of the female condom of Fig. 5 in a collapsed form;
C Fig. 7 is an elevational view of a female condom disposed on a mandrel for packaging
the condom according to an embodiment of the invention;
4
25 Fig. 8 is a close-up elevational view of an intermediate portion of the female condom of
Fig. 7 with vertical pleats formed according to the embodiment of Fig. 7;
Fig. 9 is a cross-sectional view through the female condom with vertical pleats of Fig. 8
at the neck portion of the mandrel shown in Fig. 7;
Fig. 10 illustrates compressing the female condom of Fig. 8;
Fig. 1 1 is a cross-sectional view of cap 20" shown in Fig. 7 with the female condom in a
collapsed form according to the embodiment of Fig. 7;
Fig. 12 is an elevational view of the female condom of Fig. 7 with vertical pleats formed
according to another embodiment of the invention;
Fig. 13 is another elevational view of the embodiment of Fig. 12;
Fig. 14 is a cross-sectional view through the female condom with vertical pleats of Figs.
12 and 13 at the neck portion of the mandrel;
Fig. 15 shows folding the pleats of Figs. 12 and 13 fiom the cross-sectional view of Fig.
14;
Fig. 16 is a perspective view of the condom and mandrel of Figs. 12 and 13 illustrating .
collapsing a female condom according to the embodiment of Figs. 12 and 13;
Fig. 17 shows a female condom disposed on a mandrel according to a further
embodiment of the invention;
Fig. 18 shows a female condom disposed on a mandrel for packaging the condom
according to yet another embodiment of the invention; and
Fig. 19 is an elevational view of a female condom disposed on a mandrel according to an
additional embodiment of the invention.
DETAILED DESCRIPTION OF THE INVENTION
The various aspects of the invention may be embodied in various forms. The following
- description of the figures shows by way of illustration various embodiments' in which aspects of
the invention may be practiced. It is to be understood that other embodiments may be utilized
and structural and functional modifications may be made without departing fiom the scope of
the present invention. Referring now to Figs. 1 and 2, a female condom 1 according to an
embodiment of the invention is shown. As shown, female condom 1 includes an elongated
tubular pouch 10 of thin membranous material, cling elements 15, an outer ring 17, and an
insertion device 20. Fig. 1 shows female condom 1 in an expanded form, and Fig. 2 shows
female condom 1 in a collapsed form. In the expanded form, a distal end portion of pouch 10
may be disposed within insertion device 20.
Pouch 10 is generally a tubular receptacle, which extends along the length of a vaginal
canal during use. Outer ring 17 is a resilient ring secured about the open end of pouch 10.
Outer ring 17 is sized such that, in use, it remains disposed external, generally contacting the
region surrounding the vaginal opening (the vulva), and the perineum of the female user. Outer
ring 17 and pouch 10 may be made from the same or a compatible elastomeric material, such as
10 a urethane, polyolefh, latex, silicone or thermoplastic elastomer. For example, outer ring 17
material may be made fiom ESTANE 58810 or 58887 (available fiom B.F. Goodrich of
Cleveland, OH).
Cling elements 15 are disposed at an intermediate portion of pouch 10 along its outer
surface. Pouch 10 may be made of urethane or like materials. For example, it may be made
15 h m I mil blown film extruded urethane, which is available fiom Stevens Urethane of Holyoke,
MA. In a preferred embodiment, pouch 10 is made of urethane having an average thickness
between approximately 0.00075 inches and approximately 0.004 inches or more preferably
approximately 0.0012 inch. The spacing between outer ring 17 and cling elements 15 is shown
I
as gate length g, which may be between approximately three inches and approximately four
20 inches, and is more preferably approxima&ly 3.5 inches. The diameter d of pouch 10 at the
position of cling element 15 may be between approximately 1.5 and 2 inches, and preferably
approximately 1.85 inches and the diameter of outer ring 17 may be between approximately 1.5
and 6 inches, preferably approximately 3.15 inches. Alternatively, Pouch 10 may be made of
dipped urethane, such as 0.018 inch thick dipped HT-8 urethane, or HT-3 or HT-13 (available
25 fiom Apex Medical Technologies of San Diego, CA).
In a preferred embodiment, cling elements 15 include a one or more thin foam segments
t 15 placed at gate length g from outer ring 17 for anchoring pouch 10 in or slightly beyond the
user's introitus. Foam segments 15 are made fiom soft hydrophilic foam, which provides
t
mucosal cling. Foam segments 15 preferably have a thickness of between approximately
30 0.031 25 and 0.25 inches, and more preferably between approximately 0.0625 and 0.125 inches.
Preferably, two to eight foam segments are used, more preferably four to six foam segments are
used, and most preferably four segments are used. Alternatively, cling elements may be applied
as a coating in liquid or in semi-liquid form.
The foam used for foam segments 15 may include an open cell urethane foam material,
which is often used for wound dressing. For example, AVITAR HYDRASORB medical grade
5 polyurethane hydrophilic foam (available fiom Avitar, Inc. of Canton, MA) may be used to form
foam segments 15. Urethane foam is preferred due to its melt-compatibility with the urethane
pouch of the present invention, enabling the welding of the foam to the pouch without the use of
an adhesive. In alternate embodiments, the foam may be any biocompatible hydrophilic foam,
such as the hydrophilic foam available from Rynel (Rynel Ltd., Route 27, Boothbay, ME
10 04537). As discussed above, this foam layer may be effective in thicknesses ranging fiom
between approximately 0.03 125 and 0.25 inches, and more preferably between approximately
0.0625 and 0.125 inches. Best results have been obtained with the foam placed in a number of
discrete shapes on the surface of the female condom pouch in a belt-like pattern that places the
foam at or inside the transition zone between the introitus and the rugated internal vaginal tissue.
15 The application of 4-6 shapes is preferred with an average total surface area between
approximately 0.4 and 2.25 in2, and most preferably approximately 0.75 id. A most preferred
embodiment may include four shapes each with an average surface area of approximately
0.1875 in2.
The foam segments 15 shown in Fig. 1 may include HYDRASORB foam approximately
20 0.0625 inches thick, and formed into four triangle shaped segments 15, with a base length and
height measuring approximately 0.75 inches x 0.375 inches (two segments shown). The
geometry and area of these shapes can be varied. In general, the shape of foam elements 15
allows for efficient packaging into the insertion capsule and enables them to nestle into the
rugated vaginal disuse to increase device stability. The shapes may be circles, ellipses,
25 obrounds, triangles, or other shapes as would be known to one skilled in the relevant art. As
discussed below with female condom 1 ', an elliptical shape is preferred as it may engage (nest)
better than other shapes within the rugated internal vaginal tissue. The foam shapes 15 are
preferably laminated to a melt-compatible urethane film, such as the urethane film used to
produce pouch 10 to allow easier and more secure welding of foam shapes 15 to pouch 10.
3 0 In a preferred embodiment, female condom 1 includes an insertion device 20. In the
embodiment shown in Figs. 1 and 2, insertion device 20 includes a foam cap (nose cone) 20
attached to the closed end of pouch 10. Cap 20 may be approximately one inch long and
approximately one inch in diameter. The distal portion 19 of pouch 10 and foam segments 15
are packed inside the cap for handling during insertion. The cap releases the foam shapes after
insertion. Foam cap 20 may be made from a foam material similar to that of foam cling
elements 15; and may be made fiom an open cell urethane foam material, such as 118 inch
' 5 AVITAR HYDRASORB or 2.4mm RYNEL 562-B (available fiom Rynel, Inc. of Boothbay,
ME)-
In an alternate embodiment, insertion device 20 may be made of a biocompatible
dissolving material such as polyvinyl alcohol (PVAPVOH). Inserter 20 is preferably formed
into a spherical, envelope-shaped or bullet-tipped cylindrical shape to facilitate insertion;
10 although, the capsule could be made of any other suitable shape as would be known to one
skilled in the relevant art. In alternate embodiments, the dissolving material may be gelatin,
hydropropylmethyl cellulose (HPMC), steric acid, or any compatible material which displays the
desired dissolution rate, as would be known to one skilled in the relevant art. Inserter 20 may be
made through dipping or through fabrication to allow for optimization of the cap wall thickness
15 in order to optimize the dissolution time and minimize residual material after use of the condom.
In a preferred embodiment, the dissolution time is between approximately 20 and 120 seconds,
and more preferably between approximately 30 and 60 seconds.
In the embodiment shown in Figs. 1 and 2, foam cap 20 holds foam elements 15 and
pouch 10 secure for manual insertion. Tbis design eliminates the need for an external insertion
20 aid (e.g., tube-type inserter similar to that used for tampons) - foam cap 20 takes the place of the
inserter tube. This reduces the number of condom components and decreases cost. It may also
increase acceptability of the device, as tampons with inserters are not used in some countries.
Further, insertion is facilitated and made more comfortable. The foam cap is generally easier to
handle than a plastic inserter. It is also softer and more compact.
25 Female condom 1 may rely on slight distension from foam cap 20, which could provide
additional condom retention. Cling elements 15 provide a surface treatment or mechanism on
*
the vaginal side of the condom pouch that provides cling or light adhesion against the vaginal
mucosa. In addition to adhesion, surface features may be used, which lodge in the rugated tissue
1
of the vaginal walls. The cling force need only be stronger than the pull-out forces created by
30 withdrawal of the penis during sex. If the penile surface of the condom is highly lubricious, the
I need for cling on the va@ mucosa is reduced. The cling force should exceed the pull-out
forces created by withdrawal of the penis during sex in order for the condom to remain stable
and maintain comfort, sensation, safety and effectiveness.
Unlike the internal biasing member of tensegrity-based condoms, the foam cling shapes
can engage the vaginal mucosa at many different depths within the vagina, even within the
introitus itself. This permits a single "size" of device to fit a much broader range of women than
a tensegrity-based condom. As shown in Fig. 1, thin foam segments 15 are preferably placed at
approximately a three to four inch gate, g, for anchoring in or slightly beyond the introitus of
most women.
As also shown in Fig. 1, the distal portion of the condom is preferably packaged id a
collapsed, compressed state. As discussed later, the pattern of collapsing and compressing is
important to stabiity during handling and insertion of the device and in functional deployment
of the device within the vagina. The collapsed and compressed portion of pouch 10 is held
together by cap 20, which aids insertion. For example, cap 20 may be inserted into the vagina
much like an OB ("applicator-less") tampon. After initial insertion, condom 1 can be placed into
its fllnal position with a finger or penis. Cling elements 15 are then released fiom their
collapsed/compressed state by pushing the cap beyond the cling elements and into contact with
the vaginal mucosa where they absorb a small amount of fluid and cling lightly. In particular, as
cap 20 is pushed further into the user's vagina, the foam cling elements escape (deploy) fiom
within the open skirt-like end of cap 20 to come in contact with the vaginal walls. The shaped
foam elements 15 may also lodge in the user's vaginal rogations. The cling and/or lodging
provides an anchor for pouch 10 within the user's vagina. The internal portion of condom pouch
10 may be in tensegrity balance with outer ring 17, but this is not required. If tensegrity
balanced tension is not established, outer ring 17 may hang slightly away fiom the woman's
body, but can still function to hold the open end open, flat, and properly positioned over the
opening to the user's vagina.
Unlike tensegrity-based condoms, there is no "active" insertion feature (e.g., internal
biasing member) inherently built into soft cling condoms 1. The collapsed~compressedp ortion
of pouch 10 is preferably contained in a form that makes it easy to grasp and insert to its
functional depth within the user's vagina. As shown in Fig. 2, this may be accomplished by
compressing distal portion 19 inside cap 20. Cap 20 is preferably made fiom a foam amaterial
similar to that of the foam shapes of cling elements 15, or alternatively a different soft
elastomeric material. Cap 20 is secured to the closed end of condom pouch .lo, and serves to
contain the distal end 19 of pouch 10 and foam cling elements 15 for insertion and initial
- deployment.
Referring now to Figs. 3 and 4, a female condom 1' is shown according to another
, embodiment of the invention. Fig. 3 shows female condom 1 in an expanded form' and Fig. 4
5 shows female condom 1 in collapsed form. Female condom 1 ' generally includes the aspects
J
and preferences of female condom 1, except as discussed below. As shown, female condom 1'
includes a pouch 1 O', an outer ring 17'' and cling elements 15'.
Foam elements 15' retention material are generally lozenge-shaped foam segments and
may have pinched (compressed) circumferential edges, and preferably have dimensions of
10 approximately 0.75 inches x 0.375 inches. Foam elements 15' may be made fiom hydrophilic
polyurethane foam having thicknesses of between approximately 0.03 125 and 0.25 inches, and
more preferably between approximately 0.0625 and 0.125 inches, as discussed above with
regard to foam elements 15.
To provide an insertion device, a distal portion 19' of pouch 10' is contained in a
15 dissolving band 20' (or cap structure 20 as described above) made of a safe material that first
weakens, then dissolves in the presence of vaginal moisture, thus releasing the foam shapes for
cling/adhesion to the vaginal walls. Distal portion 19' may be coupled to dissolving band 20' by
slidably inserting distal portion 19' into dissolving band 20'. A preferred material for dissolving
band 20' is polyvinyl alcohol (PVA), similar to that used for contraceptive film. As shown in
20 Fig. 5, the distal end 19' of pouch 10' is compressed and held with a strip of vaginal
contraceptive film 20' containing a water-soluble polymer, such as the preferred material
polyvinyl alcohol. The strip of vaginal contraceptive film 20' is preferably approximately 0.5 to
1.75 inches-in length, and more preferably about 1 to 1.75 inches in length. As discussed above
with cap 20, insertion of condom 1 ' with contraceptive film 20' is similar to an OB tampon. In
another embodiment, a capsule open at one or both ends (not shown) composed of the same
water soluble polymer may also be used as an insertion device.
The thin foam segments have been proven to anchor sufEciently for use. Small rounded
elliptical (lozenge) shaped elements as shown may engage (nest) better than other shapes within
rugated internal vaginal tissue. Diamond, triangular and tear drop shapes may also be used. The
elliptical shaped elements allow for efficient packaging into the insertion capsule. The compact
and rounded geometry enables the elliptical shapes to nestle into the rugated vaginal tissue to
increase device stability. In alternate embodiments, the shapes may be circles, obrounds,
triangles, or other shapes as would be known to one skilled in the relevant art.
For insertion, the distal end 19' of pouch 10' is held by the illustrated dissolving band
20' in a neat pellet shape. The band 20' may or may not contain the foam cling elements 15' as
it may be desirable for the foam elements to aid in providing initial insertion cling during initial
placement. The pellet is held and inserted into the vagina, similar to an OB tampon. By
replacing foam cap 20 with a dissolving band 2OY, insertion and deployment may become more
uniform. The dissolving nature of band 20' implies (and thus aids in indicating) an intended
single use nature of the device. By reducing the overall size of the device, user acceptability
may be increased.
Referring now to Figs. 5 and 6, a female condom 1" is shown according to another
embodiment of the invention. Fig. 5 shows female condom 1" expanded, and Fig. 6 shows
female condom 1 " in collapsed form prior to insertion. Female condom 1 " generally includes
the aspects and preferences of female condom 1, except as discussed below. As shown, female
condom 1 " includes a pouch lo", an outer ring 17", cling elements 15", and insertion device
20". Pouch 10" is preferably made of standard 1 mil blown film extxuded urethane, and
preferably has a thickness of about 0.0012", but may include other materials as discussed above
with condoms 1 and 1'. Gate length g' is preferably between approximately 3 and 4 inches, and
is more preferably approximately 3.5 inches.
Cling elements 15" retention material are each preferably 118 inch HYDRASORB foam,
die cut 5/8 inch 30" ellipses with pinched (compressed) circumferential edges. Insertion device
20" may be made of 0.063 inch RYNEL 562-6 foam, die cut and welded to pouch 10"' having
dimensions of approximately linch diameter x 1 inch length. The distal portion 19" of pouch
10" and the foam segments 15" are packed inside the cap 20" for handling during insertion.
The cap 20" should release the foam elements 15" and distal portion 19" after insertion.
Female condom 1" is a generally more refined design than female condom 1. Foam
components 15" are die cut and welded to pouch 10". This serves to make cap 20" and shapes
uniform while also reducing fabrication time. Foam cap 20" is also die cut and welded with a
heated die. Foam cling elements 15" are preferably cut fiom 118 inch HYDRASORB foam.
The shapes look significantly thinner because of pinching on the edges that results fiom die
cutting. When welded onto pouch lo", foam elements 15" are intended to appear highly
integrated with pouch 10 " for aesthetic purposes.
#
Foam cap 20" was developed to replace the plastic inserters used with previous capless
foam cling designs. As has been described, cap 20" holds foam elements 15" and pouch 10"
5 secure for manual insertion. The weld strength may be increased by expanding the area - of the
weld and by skinning and compressing the foam at the weld. The area of the weld is roughly 114
- 213, and is preferably between approximately 114 and 112 of the internal cap area from the tip
to the open end so as to leave space for the foam shapes and pleats of pouch material.
Various methods can be employed for collapsing and compressing the pouch for easy
10 insertion. In one embodiment, folds and pleats should be formed, and wadding and compression
should be done, in a manner that permits the condom pouch to open (deploy) easily and
uniformly when pushed inward by a finger or penis. Methods have been derived for folding that
employs negative air pressure to create and hold small pleats in the surface of the condom.
These pleats are then collapsed while negative air pressure is maintained to avoid cul-desacs,
15 twists, or fold-backs that might prevent easy deployment. Apparatus usable for these exemplary
methods are illustrated in the Figs. 7- 19.
Referring now to Figs. 7-11, a method for collapsing and compressing the pouch of
female condom, such as female condom l", is generally shown. As shown in Figs. 8 and 9, the
present pattern first induces 4 or more longitudinal pleats 24 generally parallel to the long axis
20 of condom pouch 1 ". As shown in Fig. 10, it then induces a large number (approximately 15-
40) of circumferential pleats 32, generally perpendicular to the long axis, from foam shapes 15"
to the distal tip 34 of pouch 10". This organization of the pouch material and foam shapes
permits compact storage and smooth deployment. Current methods of inducing these pleats 24
include use of a cylindrical male mandrel 50 equipped with vacuum (negative pressure) to hold
25 pleats 24 in a tightly closed position as they are being collapsed. This collapsed and compressed
portion of pouch- 10" is held together by a band or cap structure 20" that aids insertion as
discussed above.
As shown in Figs. 7 and 8, a hollow mandrel 50 having an outer surface of lubricious
plastic or the like is supported on a base 52 that permits attachment of a vacuum source via
3 0 tubing 5 1. The mandrel 50 is sized to extend within and generally along the length of the female
condom 1". Other embodiments, such as 1 and l', could also be 'compressed using this method
and mandrel 50. Arrayed on the cylindrical surface of mandrel 50 are a plurality of holes 54
communicating with the hollow mandrel interior. Although not shown, one or more holes 54
could be formed in the tip of the upper end 56 of mandrel 50. A vacuum developed within the II
mandrel interior causes the condom material to cling to mandrel 50 and form pleats 24 as shown
5 in Figs. 8 and 9. The upper end 56 of mandrel 50 may be necked down, generally similar to the
I
I neck of a wine bottle, and a lip 58 may be formed near the top of the upper end 56. A
I
I cylindrical sleeve 60 is mounted on, and slidable along, the main (large diameter) portion of
mandrel 50, to act as a vacuum valve serving to selectively close-off the arrayed vacuum holes
54 formed in the cylindrical mandrel walls.
10 Fig. 9 shows a cross section of female condom I", collapsed on mandrel 50 by vacuum
pressure, with four vertical pleats 24 formed. Fig. 9 corresponds generally to Fig. 8. Fig. 11
shows a cross section of a female condom collapsed into an end cap (such as cap 20'7, showing
a preferable configuration of alternately folded and packed pleats of pouch material (such as
pouch 10") and cling elements (such as cling element. 15").
15 Steps for using a mandrel to collapse the inventive female condom into its cap, in such a
manner as to allow easy insertion and deployment, are described below as one example of a
procedure to collapse the condom:
1. Clean mandrel and handling surfaces.
2. Attach vacuum source to mandrel.
3. Raise vacuum slide to cover bottom 3 holes.
4. Adjust vacuum to = 0.25 inch - 0.5 inch Hg.
5. Drape condom over mandrel with cap reversed (i.e., turned wholly or partly
inside out).
6. Arrange vertical pleats and foam cling elements to alternate (see e.g., Fig. 9).
7. Grasp condom at cling elements to trap vacuum and thereby evacuate space in the
condom above the grasping hand.
8. Adjust pleats as needed.
9. Slide condom up the mandrel piling pleats/wrinhles ahead of hand (see e-g., Fig.
10).
10. Slide vacuum slide up as necessary cover holes exposed as hand moves upward,
so as to maintain 1 inch - 3 inch Hg.
11. When you reach the necked-down portion, grasp the bunched pouch in your
gripping hand to compress it
12. With free hand, pull cap and push bunched pouch off mandrel.
13. Hold bunched pouch together while turning the cap right-side-out over the
bunched pouch.
14. Push the bunched pouch up into the cap while gently pulling back the pouch
material between the inserted foam retention elements and the open end.
The above sequence is only an example. Various steps may be modified, rearranged or
deleted, and/or other steps added. Additionally, such a process may be automated for ease of
15 Referring now to Figs. 12-15, a method for collapsing and compressing the pouch of
female condom, such as female condom 1 ", according to another embodiment of the invention
is generally shown. Aspects and preferences for this embodiment are generally the same as for
the embodiment of Figs. 7-1 1, except that two pleats 22 are formed as opposed to four pleats 24
as discussed above. Fig. 14 shows a cross section of female condom 1" according to the
20 invention when collapsed on mandrel 50 after application of vacuum pressure. The cross section
of Fig. 14 corresponds generally to the necked down portion of the mandrel shown in Fig. 12,
I and shows two vertical pleats 22. As shown in Fig. 15, vertical pleats 22 may then be wrapped
around mandrel 50. Condom 1 " may then be collapsed upward as shown in Fig. 16.
Referring now to Fig. 17, an alternative device for collapsing and compressing the pouch
!
25 of a female condom, such as condom 1 ", is generally shown according to a further embodiment
of the invention. The mandrel 50' shdwn in Fig. 13 is similar to that of Fig. 7, except that a lip
is not formed on the upper end 56.
Referring now to Fig. 18, an alternate method of packing the pouch into the cap is
generally shown according to yet another embodiment of the invention. Aspects and preferences
for this embodiment are generally the same as for the embodiment of Figs. 7-11, except as
related to folding end cap 20. In this alternate method, the end cap 20 is not completely reversed
(i.e., not turned completely inside out), but is instead "cuffed" by turning up the lower edge of
the end cap. The method is otherwise similar to that described above with Figs. 7-1 1.
Referring now to Fig. 19, another alternative device for collapsing and compressing the
pouch is generally shown according to an additional embodiment of the invention. The mandrel
50" shown in Fig. 19 is similar to that of Figs. 7 and 17, except that the upper portion is not
necked down and has no lip formed thereon. The tip of the mandrel 50" may be hemispherical.
It will be understood that while the invention has been described in conjunction with
various embodiments thereof; the foregoing description and examples arq intended to illustrate,
but not limit the scope of the invention. Other variations may be made without departing fiom
the true spirit and scope of the invention. For example, modifications upon materials,
dimensions and steps are within the scope of the invention.

WE CLAIM:
1. A packaged soft cling female condom (1, l', I"),
comprising:
a pouch (10, lo', 10") of resilient membranous material
having an open end, a closed end, an outer surface and an
inner surface; and
at least one hydrophilic cling element (15, 15', 15")
attached to said outer surface of said pouch (10, lo', lo"), said
at least one cling element (15, 15', 15") being disposed between
said open end and said closed end; characterized by; '
an inserter (20, 20'' 20") attached to said pouch (10, lo',
10") for retaining a distal portion (19, 19'' 19", 34) of said pouch
(1 0, 1 O', 10") and facilitating insertion of said female condom (1,
1 ', 1") into a vagina;
wherein said inserter (20, 20', 20") is dissolvable -d--i-s solvable in the ,_
vaginal environment, said distil portion (19) of said pouch (10,
lo', 10") is slidably retained in said inserter (20, 20', 207, and
each one of said cling elements (15, 15', 15") adapted to
cling lightly to walls of a vagina proximate a transition zone
between the vagina's introitus and its rugated internal vaginal
tissue for anchoring said pouch in or slightly beyond said
introitus.
2. The female condom as claimed in claim 1, wherein said
female condom includes at least three hydrophilic cling
.-- --.
elements.
3. The female condom as claimed in claim 2, wherein said at
least three hydrophilic cling elements includes four foam cling
elements to six foam cling elements.
4. The female condom as claimed in claim 2, wherein said
hydrophilic cling elements are disposed in a belt-like pattern
around said pouch.
5. The female condom as claimed in claim 1, wherein at least
one hydrophilic cling element defines an elliptical shape.
6. The female condom as claimed in claim 1, wherein said at
least one hydrophilic cling element defines a shape selected
from the group consisting of a triangular shape and a circular
shape.
7. The female condom as claimed in claim 1, wherein said at
least one hydrophilic cling element is a polyurethane
hydrophilic foam segment.
by? -. /- 8. The female condom as claimed in claim 1, wherein said at I '-3 , I
' r , -
least one hydrophilic cling ele-m-- ent has a total surface area of --- -"sr a -a>-.
% --s..-
approximately 0.75 square inches.
9. The female condom as claimed in claim 1, wherein said
inserter is a cap attached to said pouch.
10. The female condom as claimed in claim 9, wherein said
cap is selected from the group consisting of an elastomeric cap
and a foam cap.
1 1. The female condom as claimed in claim 1, wherein a distal
portion of said pouch is packed inside of said inserter.
12. The female condom as claimed in claim 11, wherein said
at least one hydrophilic cling element is packed inside of said
inserter.
13. The female condom as claimed in claim 1, wherein said
inserter is selected from the group consisting of a band, a
capsule, a spherical inserter, a envelope-shaped inserter, a
bullet-tipped cylindrical inserter, and a closed-ended pouch.
14. The female condom as claimed in claim 1, wherein said
inserter comprises a water-soluble material.
15. The female condom as claimed in claim 16, wherein said
water-soluble material includes polyvinyl alcohol.
16. The female condom as claimed in claim 1, wherein said at
least one hydrophilic cling element adheres to said pouch
without imparting outward biasing force therete
17. The female condom as claimed in claim 1, wherein said
inserter retains a distal portion of said pouch and said at least
one cling element in a collapsed form?, said retained distal
portion of the pouch in the collapsed form including:
a plurality of longitudinal pleats formed in said distal end
of said pouch and disposed parallel to a longitudinal axis of said
l
pouch; and
a plurality of lateral pleats formed in said distal end of
said pouch and disposed perpendicular to said longitudinal
axis;
wherein, upon insertion into a user's vagina, said at least
one cling element deploys from said inserter and comes into
walls.
contact with vaginal walls for lightly clinging to said vagind
, packaged female condom (1, l',
c-- \ - ----c -- - --1 : I"), said female condom (1, l', 1") comprising an elongated
i
/ pouch (10, 10: 10") having an open portion and an opposite
distal portion (19, 19', 19", 34), said pouch (10, lo', 10")
defining an inner cavity, said method comprising:
attaching at least one hydrophilic cling element (15, 15',
--4
15") to said outer surface of said poZch c l o y , 10") between
said open portion and said distal portion (19, 19', 19", 34), each
one of said cling elements (15, 15', 15") adapted to cling lightly
to walls of a vagina proximate a transition zone between the
vagina's introitus and its rugated internal vaginal tissue for
anchoring said pouch in or slightly beyond said introitus;
forming a plurality of longitudinal pleats (24) in -. said distal
portion (19, 19', 19", 34) of said pouch (10, lo', 10") wherein
said longitudinal pleats (24) are disposed parallel to a
longitudinal axis of said pouch;
folding said ,longitudinal pleats (24) parallel to said
longitudinal axis wherein said longitudinal pleats (24) overlap
said distal portion (19, 19', 19", 34);
collapsing gaid distal portion (19, 19', 19", 34) of said
/
pouch (10, lo', 10") in a direction parallel to said longitudinal
axis toward a distal end and forming lateral pleats (32) in said
distal portion (19, 19', 19", 34), wherein said lateral pleats (32)
are disposed perpendicular to said longitudinal axis; and
placing a water-soluble inserter (20, 20', 20") about said
- - --
collaps'ect-distatp5rtion for slidably retaining said distal portion
of said pouch therein.
19. The method claim as claimed in claim 18, wherein the
step of forming a plurality of longitudinal pleats comprises:
---C----
placing said pouch oveFk elongated mandrel wherein a
portion of said mandrel is disposed within said pouch inner
cavity;
withdrawing air from said inner cavity wherein at least
said distal portion of said pouch collapses about said mandrel;
and
- 21 -
arranging said longitudinal pleats in said pouch.
20. The method claim as claimed in claim 19, wherein the.
step of arranging comprises forming each of said pleats between
, I
an adjacent pair of cling elements attached to an outer side of
said pouch;
and wherein the step of folding comprises rotating each of
said longitudinal pleats in one of a clockwise direction and a
counter-clockwise direction generally about said longitudinal
axis;
and wherein the step of forming lateral pleats comprises
sliding said distal portion about a mandrel disposed within said
inner cavity;
and wherein the step of placing an inserter about said
collapsed distal portion comprises turning at least a portion of a
cap inside-out to retain said distal portion.
21. The method as claimed in claim 18, wherein the step of
attaching at least one hydrophilic cling element includes
welding at least one hydrophilic cling element to said outer
surface of said pouch.
22. The female in claim 1, wherein the at
least one is welded to the outer
surface of the pouch.
23. The female condom as claimed in claim 1, wherein the at
least one hydrophilic cling element is disposed 3 inches to 4
inches from said open end.