FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENT RULES, 2003
COMPLETE SPECIFICATION
(See Section 10 and Rule 13)
A CATHETER DISTAL TIP FOR
ANASTOMOSIS
BIORAD MEDISYS PRIVATE LIMITED
AN INDIAN COMPANY HAVING OFFICE ADDRESS AT
Survey No. 48, 3 & 48 7, Pashan - Sus Rd, Sus, Pune,
Maharashtra 411021
THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE
SUBJECT MATTER AND THE MANNER IN WHICH IT IS TO BE PERFORMED.
2
TECHNICAL FIELD
[001] The present invention relates generally to the field of medical
instruments. More particularly, the invention relates to an endoscopic
ultrasound (EUS)-guided access system having a manoeuvrable catheter
5 distal tip configured for penetrating adjacent tissue layers and enlarging the
resulting penetration for subsequent treatment thereof.
BACKGROUND
[002] A Gastrojejunostomy is a surgical procedure in which an
anastomosis is created between stomach to the middle part of the small
10 intestine, called the jejunum. The new connection reroutes the passage of
food from the stomach into the small intestine, bypassing the first section of
the small intestine, called the duodenum. This is usually done either for the
purpose of draining the contents of the stomach or to provide a bypass for
the gastric contents while bypassing diseases or malfunctioning tissues.
15 Gastrojejunostomy can be done via either an open or a laparoscopic
approach. Percutaneous gastrojejunostomy may be performed, in which a
tube is placed through the abdominal wall into the stomach and then
through the duodenum into the jejunum. Endoscopic gastrojejunostomy
procedure is performed to locate the jejunum endo-sonographically from
20 inside the stomach and placing a stent across a newly formed fistulous tract.
[003] Stents are commonly used to facilitate the opening of closed vessels
for access, drainage or other purposes. Tissue anchors are used to secure
adjacent tissues or organs. Often, the precise placement of the tissue anchor
or stent is necessary. When deploying a stent or other tissue anchor between
25 adjacent body lumens, organs, or other structures, it is typically necessary
to penetrate both a wall of the first body lumen through which access is
established and a wall of a second body lumen which is the target for the

procedure. Prior art devices for creating anastomoses often comprise a
piercing tip which can be hazardous and cause injury to adjacent organs.
When initially forming such access penetrations, there is a significant risk
of leakage from either or both access body lumen and the target body lumen
5 into the surrounding space. Loss of body fluid into surrounding tissues and
body cavities can present a substantial risk to the patient. The risk can be
exacerbated when it is necessary to not only penetrate the luminal walls to
gain initial access, usually with a needle, but to subsequently enlarge or
dilate the initial penetration, for example by passing a tapered dilator
10 and/or dilating balloon over the needle used to establish initial access.
[004] Conventional catheter distal tips used for this purpose may lack
precision and control during tissue puncturing, leading to potential
complications during the procedure. One more drawback is that several
exchanges and steps are required to form the opening. The small size of the
15 opening formed can also create high resistance to advancing or retracting
the endoscope, which is significantly larger than the opening. In the event
the endoscope is retracted through the opening, it can also be difficult to
locate the opening and re-insert the endoscope. Continued advancement
and retraction of the endoscope can also be uncomfortable for the patient.
20 Another drawback of current methods is that a non-sterile passageway is
created from the stomach into the abdominal cavity, as the devices carry
bacteria from the body lumen into the abdominal cavity.
[005] There is, therefore, a need for an improved monopolar catheter distal
tip that offers enhanced accuracy and efficiency in creating a secure
25 anastomosis. This invention is therefore directed towards providing a
catheter distal tip, which is relatively simple in design and structure, and is
highly effective for its intended purpose.
4
OBJECTIVES
[006] An object of the present invention is to provide a distal tip on the
catheter designed to enable precise and controlled puncturing through
tissue walls to create an anastomosis.
5 [007] Another object of the present invention is to provide a specialized
design of a catheter distal tip to create a secure and leak-proof anastomosis
to deploy a stent, anchor, or for other purposes, reducing the risk of postoperative complications.
[008] Another object of the invention is to reduce the number of accessories
10 required to perform the surgery thereby reducing the overall time and cost.
[009] Yet another object of the invention is to facilitate improved access to
body lumens while minimizing trauma and damage to the tissue
surrounding the initial luminal wall penetration.
15 SUMMARY
[0010] Embodiments of the present disclosure present technological
improvements as solutions to one or more of the above-mentioned technical
problems.
[0011] Before the present subject matter relating to a distal tip for surgical
20 anastomosis, it is to be understood that this application is not limited to the
particular system described, as there can be multiple possible embodiments
which are not expressly illustrated in the present disclosure. It is also to be
understood that the terminology used in the description is for the purpose
of describing the implementations or versions or embodiments only and is
25 not intended to limit the scope of the present subject matter.
[0012] This summary is provided to introduce aspects related to the distal
tip for surgical anastomosis. This summary is not intended to identify
essential features of the claimed subject matter nor is it intended for use in
determining or limiting the scope of the present subject matter.

[0013] In an embodiment of a present invention, a catheter distal tip for
surgical anastomosis is disclosed. The catheter distal tip comprises a first
part and a second part. The first part is a ceramic frustrum. The first part
comprises a tip with a plurality of slots formed in a radial manner around
5 a circumference of the tip. The second part is made of a metal. The second
part comprises a plurality of ribs formed in a radial manner around an outer
surface of the second part. During assembly, the second part is configured
to receive the first part such that each of the ribs get fixed with the respective
slots using one or more locking mechanisms.
10 [0014] In another embodiment, the catheter distal tip comprises a first part
and a second part. The first part is a hollow metal cylinder. The first part
comprises a plurality of rectangular ribs formed equidistantly in a radial
manner around an outer surface at a first end. The second part is a ceramic
frustrum. The second part comprises a plurality of rectangular slots formed
15 equidistantly in a radial manner around an outer surface at a first end. A
one end of each of the rectangular slots coincides with a one end of each of
the projections, thereby creating a passage. During assembly, the second
part is configured to receive the first part. The plurality of ribs slide into the
plurality of slots, thereby fixing each of the rectangular ribs with respective
20 rectangular slots using one or more locking mechanisms.
[0015] In yet another embodiment, the catheter distal tip comprises a first
part and a second part. The first part is a hollow metal cylinder. The first
part comprises a plurality of helical ribs formed equidistantly around an
outer surface at a first end. The second part is made up of a ceramic material.
25 The second part comprises a plurality of helical grooves formed
equidistantly around an outer surface at a first end. During assembly, the
second part is configured to receive the first part such that each of the helical
ribs get fixed with respective helical grooves with help of helical movement
of the first part.
6
[0016] In another embodiment, the catheter distal tip comprises a first part
and a second part. The first part is a hollow metal cylinder. The first part
comprises a pair of V-shaped ribs with 30-degree angle at one end and the
pair of V-shaped ribs formed with 30-degree angle on an opposite end. The
5 second part is a ceramic frustrum. The second part comprises a pair of Vshaped grooves with 30-degree angle at one end and the pair of V-shaped
grooves formed with 30-degree angle on an opposite end. During assembly,
the second part is configured to receive the first part such that each of the
pair of V-shaped ribs get fixed with respective pair of V-shaped grooves by
10 splitting the second part.
[0017] In another embodiment, the catheter distal tip comprises a first part
and a second part. The first part is a hollow metal cylinder. The first part
comprises a plurality of trapezoidal ribs formed equidistantly in a radial
manner around an outer surface at a first end. The second part is a pair of
15 ceramic frustrum having a common base. The second part comprises a
plurality of trapezoidal slots formed equidistantly in a radial manner
around an outer surface at a first end. The one end of the trapezoidal slots
coincides with the one end of a projection, thereby creating a passage.
During assembly, the second part is configured to receive the first part. The
20 plurality of trapezoidal ribs slide into the plurality of trapezoidal slots,
thereby fixing each of the trapezoidal ribs with respective trapezoidal slots.
[0018] This summary is provided to introduce aspects related to a catheter
distal tip for surgical anastomosis. This summary is not intended to identify
essential features of the claimed subject matter nor is it intended for use in
25 determining or limiting the scope of the present subject matter.
[0019] Additional aspects, advantages, features and objects of the present
disclosure would be made apparent from the drawings and the detailed
description of the illustrative embodiment.

[0020] It will be appreciated that features of the present disclosure are
susceptible to being combined in various combinations without departing
from the scope of the present disclosure as defined by the below mentioned
detailed description and drawings.
5 BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
[0021] The foregoing detailed description of embodiments is better
understood when read in conjunction with the appended drawings. For the
purpose of illustrating the disclosure, there is shown in the present
document example constructions of the disclosure; however, the disclosure
10 is not limited to the specific system or method disclosed in the document
and the drawings.
[0022] The present disclosure is described in detail with reference to the
accompanying figures. In the figures, the left-most digit(s) of a reference
number identifies the figure in which the reference number first appears.
15 The same numbers are used throughout the drawings to refer various
features of the present subject matter.
[0023] Figures 1(a) and 1(b) illustrate a perspective view of an assembled
and disassembled view of a distal tip of a catheter in accordance with an
exemplary embodiment of the present disclosure.
20 [0024] Figures 2(a) and 2(b) illustrate a perspective view of an assembled
and disassembled view of a distal tip of a catheter in accordance with an
alternative embodiment of the present disclosure.
[0025] Figures 3(a) and 3(b) illustrate a perspective view of an assembled
and disassembled view of a distal tip of a catheter in accordance with an
25 alternative embodiment of the present disclosure.
[0026] Figures 4(a) and 4(b) illustrate a perspective view of an assembled
and disassembled view of a distal tip of a catheter in accordance with
another alternative embodiment of the present disclosure.
8
[0027] In the above accompanying drawings, a non-underlined number
relates to an item identified by a line linking the non-underlined number to
the item. When a number is non-underlined and accompanied by an
associated arrow, the non-underlined number is used to identify a general
5 item at which the arrow is pointing.
[0028] Further, the figures depict various embodiments of the present
subject matter for purposes of illustration only. One skilled in the art will
readily recognize from the following discussion that alternative
embodiments of the structures and methods illustrated herein may be
10 employed without departing from the principles of the present subject
matter described herein.
DETAILED DESCRIPTION
[0029] Some embodiments of this disclosure, illustrating all its features, will
now be discussed in detail. The words "comprising," "having," "containing,"
15 and "including," and other forms thereof, are intended to be equivalent in
meaning and be open ended in that an item or items following any one of
these words is not meant to be an exhaustive listing of such item or items,
or meant to be limited to only the listed item or items. It must also be noted
that as used herein and in the appended claims, the singular forms "a," "an,"
20 and "the" include plural references unless the context clearly dictates
otherwise. Although a distal tip for surgical anastomosis, similar or
equivalent to those described herein can be used in the practice or testing
of embodiments of the present disclosure, the exemplary, the distal tip for
surgical anastomosis is now described.
25 [0030] For purposes of the present specification and claims, various
relational terms like “top” “bottom,” “proximal,” “distal,” “upper,”
“lower,” “front,” and “rear” are used to describe the present invention
when the invention is positioned in or viewed from a given orientation. It

is to be understood that, by altering the orientation of the invention, certain
relational terms may need to be adjusted accordingly.
[0031] The person skilled in the art will recognize many variations,
alternatives, and modifications of the embodiment of the present disclosure.
5 It should be understood that this invention is not limited to the particular
methodology, protocols, and the like, described herein and as such may
vary. The terminology used herein is for the purpose of describing
particular embodiment only and is not intended to limit the scope of the
present invention, which is defined solely by the claims.
10 [0032] Various modifications to the embodiment will be readily apparent to
those skilled in the art and the generic principles herein may be applied to
other embodiments. For example, although the present disclosure will be
described in the context of the distal tip for surgical anastomosis, one of
ordinary skill in the art will readily recognize that the distal tip can be
15 utilized to enable precise and controlled puncturing through tissue walls to
create an anastomosis. Thus, the present disclosure is not intended to be
limited to the embodiments illustrated but is to be accorded the widest
scope consistent with the principles and features described herein.
[0033] Conventional catheter distal tips used for anastomosis lack precision
20 and control during tissue puncturing, leading to potential complications
during the procedure. Also, in conventional methodology a non-sterile
passageway is created from stomach to abdominal cavity, thus, devices can
carry bacteria from the body lumen into the abdominal cavity. The present
disclosure discloses an improved monopolar catheter distal tip that offers
25 improved precision and enhanced accuracy and efficiency in creating a
secure anastomosis.
[0034] A catheter distal tip for anastomosis comprises a ceramic part and a
conductive metal part along with a conductive element for current supply
that allows efficient cutting, heating and cauterization. The catheter distal
10
tip comprises a first part and a second part. The first part is a ceramic
frustrum. The first part comprises a tip with a plurality of slots form in a
radial manner around a circumference of a tip. The second part is made up
of a metal. The second part comprises a plurality of ribs formed in a radial
5 manner around an outer surface of the second part. During an assembly,
the second part is configured to receive the first part such that each of the
ribs get fixed with the respective slots using one or more locking
mechanisms. The metal part of the tip is conductive and configured to cut,
heat and/or cauterize tissue of a patient. A direct or alternating current is
10 passed through a resistant metal wire electrode, generating heat. The wire
disposed within the catheter body extending along the length of the catheter
body terminating within the handle. The heated electrode is then applied to
living tissue to achieve hemostasis or varying degrees of tissue destruction.
The current does not pass through the patient; thus, the procedure can be
15 safely used in patients with implanted electrical devices such as cardiac
pacemakers, implantable cardioverter-defibrillators, and deep-brain
stimulators.
[0035] Electrical energy, such as radio frequency (RF) energy and high
frequency (HF) energy, can be supplied to the metal part of the tip from a
20 generator unit electrically coupled to the handle at the electrical plug. The
handle has electrical controls for controlling the electrical energy supplied
to the tip.
[0036] In an embodiment, a catheter distal tip comprises a first part and a
second part. The first part is a hollow metal cylinder. The first part
25 comprises a plurality of rectangular ribs formed equidistantly in a radial
manner around an outer surface at a first end. The second part is a ceramic
frustrum. The second part comprises a plurality of rectangular slots formed
equidistantly in a radial manner around an outer surface at a first end. A
one end of each of the rectangular slots coincides with a one end of each of

the projections, thereby creating a passage. During assembly, the second
part is configured to receive the first part. The plurality of ribs slide into the
plurality of slots, thereby fixing each of the rectangular ribs with respective
rectangular slots using one or more locking mechanisms. The metal part is
5 conductive and configured to cut, heat and/or cauterize tissue of a patient.
[0037] In another embodiment, a catheter distal tip comprises a first part
and a second part. The first part is a metal hollow cylinder. The first part
comprises a plurality of helical ribs formed equidistantly around an outer
surface at a first end. The second part is made up of a ceramic material. The
10 second part comprises a plurality of helical grooves formed equidistantly
around an outer surface at a first end. During an assembly, the second part
is configured to receive the first part such that each of the helical ribs get
fixed with respective helical grooves with the help of helical movement of
the first part. The metal part is conductive and configured to cut, heat
15 and/or cauterize tissue of a patient.
[0038] In another embodiment, a catheter distal tip comprises a first part
and a second part. The first part is a hollow metal cylinder. The first part
comprises a pair of V-shaped ribs with 30-degree angle at one end and the
pair of V-shaped ribs formed with 30-degree angle on an opposite end. The
20 second part is a ceramic frustrum. The second part comprises a pair of Vshaped grooves with 30-degree angle at one end and a pair of grooves
formed with 30-degree angle on an opposite end. During assembly, the
second part is configured to receive the first part such that each of the pair
of V-shaped ribs get fixed with respective pair of V-shaped grooves by
25 splitting the second part. The metal part is conductive and configured to
cut, heat and/or cauterize tissue of a patient.
[0039] In yet another embodiment, a catheter distal tip comprises a first part
and a second part. The first part is a metal hollow cylinder. The first part
comprises a plurality of trapezoidal ribs formed equidistantly in a radial
12
manner around an outer surface at a first end. The second part is a pair of
ceramic frustrum having common base. The second part comprises a
plurality of trapezoidal slots formed equidistantly in a radial manner
around an outer surface at a first end. The one end of the trapezoidal slots
5 coincides with the one end of a projection thereby creating a passage.
During assembly, the second part is configured to receive the first part. The
plurality of trapezoidal ribs slide into the plurality of trapezoidal slots
thereby fixing each of the trapezoidal ribs with respective trapezoidal slots
using one or more locking mechanisms. The metal part is conductive and
10 configured to cut, heat and/or cauterize tissue of a patient.
[0040] The distal tip designs disclosed herein allow for an increased
electrical current density that can facilitate quicker cutting through tissue
and reduced trauma to the surrounding tissue areas. The smaller cutting
surface area will have a higher current density than a larger surface area for
15 a given power. The higher current density on the cutting surface area can
facilitate quicker cutting of the tissue. The faster cutting can minimize the
thermal injury to the tissue that is cut along with adjacent tissue. Examples
of thermal damage to tissue include coagulation, loss of elasticity of the
tissue, denaturing of proteins, and necrosis. The distal tips disclosed herein
20 can minimize tissue damage thereby maintaining tissue elasticity after
cutting the tissue. The distal tips disclosed herein can operate at a wide
range of powers, for example from about 30 Watts to about 200 Watts or
greater. The tip designs reduce the likelihood of leakage and complications
for the surgical procedures.
25 [0041] It should be noted that the above advantages and other advantages
will be better evident in the subsequent description. Further, in the
subsequent section the present subject is better explained with reference to
the figures.

[0042] Referring now to the drawings, Figures 1-4 illustrate a Monopolar tip
with a variety of configurations. It should be noted that Figure 1-4 are
merely examples. A person skilled in the art will recognize many variations,
alternatives, and modifications of the embodiments of the present
5 disclosure.
[0043] Referring now to the drawings, Fig. 1(a) and 1(b), Figures 1(a) and
1(b) illustrates disassembled 100 (a) and assembled view 100 (b) of a distal
tip 100. In an embodiment, the distal tip 100 comprises a first part 104 and
a second part 102. The first part 104 is a hollow metal cylinder. The first part
10 104 comprises a plurality of rectangular ribs 108 formed equidistantly in a
radial manner around an outer surface at a first end. The second part 102 is
a ceramic frustrum. The second part 102 comprises a plurality of
rectangular slots 106 formed equidistantly in a radial manner around an
outer surface at a first end. A one end of each of the rectangular slots 106
15 coincides with a one end of each of the projections 118, thereby creating a
passage. The one edge of the rectangular slot 106 is coinciding with a
circular face of the second part and a second edge of the rectangular slot 106
coinciding with one edge of a projection 118. During assembly, the second
part 102 is configured to receive the first part 104. The plurality of ribs 108
20 slide into the plurality of slots 102, thereby fixing each of the rectangular
ribs 108 with respective rectangular slots 106 using one or more locking
mechanisms.
[0044] The metal part 104 of the tip 100 is conductive and configured to cut,
heat, and/or cauterize tissue of a patient that receives current from the wire
25 110 disposed within the catheter body extending along the length of the
catheter body terminating within the handle. The wire 110 that acts as a
conduit for supplying current to the metal part 104 of the distal tip 100 is
well-insulated within the catheter body, ensuring safe delivery of current to
the target tissues while minimizing the risk of unintended damage to
14
surrounding structures. Electrical energy, such as radio frequency (RF)
energy and high frequency (HF) energy, can be supplied to the metal part
104 of the tip 100 from a generator unit (not shown) electrically coupled to
the handle at the electrical plug. The handle has electrical controls for
5 controlling the electrical energy supplied to the tip 100.
[0045] Figures 2(a) and 2(b) illustrate another configuration of the
disassembled 200 (a) and assembled view 200 (b) of distal tip 200. The distal
tip 200 comprises a first part 204 and a second part 202. The first part 204 is
a hollow metal cylinder. The first part 204 comprises a plurality of helical
10 ribs 208 formed equidistantly around an outer surface at a first end. The
second part 202 is made up of a ceramic material. The second part 202
comprises a plurality of helical grooves 206 formed equidistantly around an
outer surface at a first end 212. The first end of each of the helical grooves
is coinciding with an outer end of projection 212. During assembly, the
15 second part 202 is configured to receive the first part 204 such that each of
the helical ribs 208 get fixed with respective helical grooves 206 with help
of helical movement of the first part 204. A clockwise spiral or
counterclockwise helical configuration can also be used. The metal part 204
is conductive configured to cut, heat, and/or cauterize tissue of a patient
20 that receives current from the wire 210 disposed within the catheter body
extending along the length of the catheter body terminating within the
handle.
[0046] Figures 3(a) and 3(b) illustrate another embodiment of the
disassembled 300 (a) and assembled view 300 (b) of distal tip 300. The distal
25 tip 300 comprises a first part 304 and a second part 302. The first part 304 is
a hollow metal cylinder. The first part 304 comprises a pair of V-shaped ribs
308 with 30-degree angle at one end and the pair of V-shaped ribs 308
formed with 30-degree angle on an opposite end. The second part 302 is a
ceramic frustrum. The second part 302 comprises a pair of V-shaped

grooves 306 with 30-degree angle at one end and the pair of V-shaped
grooves 306 formed with 30-degree angle on an opposite end. During
assembly, the second part 302 is configured to receive the first part 304 such
that each of the pair of V-shaped ribs 308 get fixed with respective pair of
5 V-shaped grooves 206 by splitting the second part 302. The metal part 304
of the tip is conductive and configured to cut, heat, and/or cauterize tissue
of a patient that receives current from the wire 310 disposed within the
catheter body extending along the length of the catheter body terminating
within the handle.
10 [0047] Figures 4(a) and 4(b) illustrate another embodiment of the
disassembled 400 (a) and assembled view 400 (b) of distal tip 400. The distal
tip comprises a first part 404 and a second part 402. The first part 404 is a
hollow metal cylinder. The first part 404 comprises a plurality of trapezoidal
ribs 408 formed equidistantly in a radial manner around an outer surface at
15 a first end 410. The second part 402 is a pair of ceramic frustrum having a
common base 412. The second part 402 comprises a plurality of trapezoidal
slots 406 formed equidistantly in a radial manner around an outer surface
at a first end. The one end of the trapezoidal slots 406 coincides with the one
end of a projection 414, thereby creating a passage and one edge of the
20 trapezoidal slots is coinciding with a lateral face of the second part 402.
During assembly, the second part 402 is configured to receive the first part
404. The plurality of trapezoidal ribs 108 slide into the plurality of
trapezoidal slots 102 thereby fixing each of the trapezoidal ribs 108 with
respective trapezoidal slots 106 using one or more locking mechanisms. The
25 through hole is provided within both of the parts through which the inner
catheter can pass. The metal part 404 is conductive and configured to cut,
heat, and/or cauterize tissue of a patient that receives current from the wire
410 disposed within the catheter body extending along the length of the
catheter body terminating within the handle.
16
[0048] Fig. 1 to 4 are mere examples. A person skilled in the art will
recognize many variations, alternatives, and modifications of the
embodiment of the present disclosure.
[0049] The present invention has both technical as well as economic
5 significance with respect to the conventional distal tip for surgical
anastomosis or the like.
[0050] While a particular embodiment of the invention has been illustrated
and described, modifications thereof will readily occur to those skilled in
the art. It is understood that the various embodiment, details and
10 constructions of the distal tip for surgical anastomosis and their features
described above and illustrated in the attached figures may be interchanged
among the various embodiment while remaining within the scope of the
invention. Additionally, it is understood that various modifications could
be made to any of the distal tip for surgical anastomosis and/or elements
15 described herein above while remaining within the scope of the invention.
[0051] Exemplary embodiments discussed above may provide certain
advantages. Though not required to practice aspects of the disclosure, these
following advantages may include:
[0052] Some embodiments of the catheter distal tip provide a secure and
20 leak proof anastomosis to deploy a stent.
[0053] Some embodiments of the catheter distal tip provide an improved
access to body lumen while minimizing trauma and damage to tissue
surrounding the initial lumen wall penetration.
[0054] Although the description provides implementations of a catheter
25 distal tip, it is to be understood that the above descriptions are not
necessarily limited to the specific features or methods of systems. Rather,
the specific features and methods are disclosed as examples of
implementations for the catheter distal tip

We claim:

1. A catheter distal tip for anastomosis comprises:
a first part (102), wherein the first part (102) is a ceramic
frustrum, wherein the first part (102) comprises a tip (112) with a
plurality of slots (106) form in a radial manner around a
circumference of the tip (112);
a second part (104), wherein the second part (104) is made up
of a metal, wherein the second part (104) comprises a plurality of
ribs (108) formed in a radial manner around an outer surface of
the second part (104);
during assembly, the second part (104) is configured to
receive the first part (102) such that each of the ribs (108) get fixed
with the respective slots (106) using one or more locking
mechanisms.

2. The catheter distal tip for anastomosis as claimed in claim 1, wherein
the plurality of slots (106) are rectangular with one edge coinciding
with a circular face and a second edge coinciding with one edge of a
projection (118), wherein the plurality of ribs (108) are rectangular.

3. The catheter distal tip for anastomosis as claimed in claim 1, wherein
the plurality of slots (206) are helical with first end coinciding with
an outer end of a projection (212), wherein the plurality of ribs (208)
are helical.

4. The catheter distal tip for anastomosis as claimed in claim 1, wherein
the plurality of slots (306) are V-shaped with 30 degree angle at one
end and at opposite end and the plurality of ribs (310) are V-shaped
with 30 degree angle at one end and at opposite end.

5. The catheter distal tip for anastomosis as claimed in claim 1, wherein
the plurality of slots (406) are trapezoidal with one edge coinciding
with a lateral face and the plurality of ribs (408) are trapezoidal.

6. The Catheter Distal Tip as claimed in claim 1, wherein the second
part (104) receives current from a wire (110) disposed within a
catheter, extending along a length of the catheter, and terminating
within a handle.

7. The Catheter Distal Tip for anastomosis as claimed in claim 1,
wherein the second part (104) is configured to cut, heat and cauterize
tissue during the anastomosis procedure.

8. The Catheter Distal Tip for anastomosis as claimed in claim 1,
wherein a through hole is provided within the first part (102) and the
second part (104) through which an inner catheter passes.

9. The Catheter Distal Tip for anastomosis as claimed in claim 1,
wherein the distal tip is composed of a ceramic part and a conductive
metal part along with a conductive element, wherein the ceramic
part is non-conductive aids in insulating the metal part.

10. A Catheter Distal Tip for anastomosis comprises:
a first part (104), wherein the first part (104) is a hollow metal
cylinder, wherein the first part (104) comprises a plurality of
rectangular ribs (108) formed equidistantly in a radial manner
around an outer surface at a first end (112);
a second part (102), wherein the second part (102) is a ceramic
frustrum, wherein the second part (102) comprises a plurality of
rectangular slots (106) formed equidistantly in a radial manner
around an outer surface at a first end, wherein a one end of each
of the rectangular slots (106) coincides with a one end of each of
the projections (118), thereby creating a passage;

during assembly, the second part (102) is configured to receive
the first part (104), wherein the plurality of ribs (108) slide into the
plurality of slots (102), thereby fixing each of the rectangular ribs
(108) with respective rectangular slots (106) using one or more
locking mechanisms.

11. A Catheter Distal Tip for anastomosis comprises:
a first part (204), wherein the first part (204) is a hollow metal
cylinder, wherein the first part (204) comprises a plurality of
helical ribs (208) formed equidistantly around an outer surface at
a first end;
a second part (202), wherein the second part (202) is made up
of a ceramic material, wherein the second part (202) comprises a
plurality of helical grooves (206) formed equidistantly around an
outer surface at a first end (212);
during assembly, the second part (202) is configured to receive
the first part (204) such that each of the helical ribs (208) get fixed
with respective helical grooves (206) with help of helical
movement of the first part (204).

12. A Catheter Distal Tip for anastomosis comprises:
a first part (304), wherein the first part (304) is a hollow metal
cylinder, wherein the first part (304) comprises a pair of V-shaped
ribs (308) with 30-degree angle at one end and the pair of Vshaped ribs (308) formed with 30-degree angle on an opposite end;
a second part (302), wherein the second part (302) is a
ceramic frustrum, wherein the second part (302) comprises a pair
of V-shaped grooves (306) with 30-degree angle at one end and
the pair of V-shaped grooves (306) formed with 30-degree angle
on an opposite end;

during assembly, the second part (302) is configured to
receive the first part (304) such that each of the pair of V-shaped
ribs (308) get fixed with respective pair of V-shaped grooves (206)
by splitting the second part (302).

13. A Catheter Distal Tip for anastomosis comprises:
a first part (404), wherein the first part (404) is a hollow metal
cylinder, wherein the first part (404) comprises a plurality of
trapezoidal ribs (408) formed equidistantly in a radial manner
around an outer surface at a first end (410);
a second part (402), wherein the second part (402) is a pair of
ceramic frustrum having a common base (412), wherein the
second part (402) comprises a plurality of trapezoidal slots (406)
formed equidistantly in a radial manner around an outer surface
at a first end, wherein the one end of the trapezoidal slots (406)
coincides with the one end of a projection (414), thereby creating
a passage;
during assembly, the second part (402) is configured to receive
the first part (404), wherein the plurality of trapezoidal ribs (108)
slide into the plurality of trapezoidal slots (102) thereby fixing
each of the trapezoidal ribs (108) with respective trapezoidal slots
(106) using one or more locking mechanisms.

Dated: August 2nd, 2024