Description:FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
(Section 10 and Rule 13)

TITLE OF THE INVENTION
VARIABLE ANGLE FIXTURE ASSEMBLY

APPLICANT:
Meril Corporation (I) Private Limited, an Indian company of the address Survey No. 135/139, Muktanand Marg, Bilakhia House, Pardi, Vapi, Valsad-396191 Gujarat, India.

The following specification particularly describes the invention and manner in which it is to be performed:

FILED OF THE INVENTION
[001] The present disclosure relates to mechanical fixation. More particularly, the present disclosure relates to a variable angle fixture assembly.
BACKGROUND OF THE INVENTION
[002] Internal bone fractures are often treated by using fastened plates, called bone plates. Fastening of the bone plates on bones is achieved by using, for example, bone screws. The bone plates include multiple openings. These openings host the bone screws. The screws include a head and a threaded portion. The threaded portion of the screws impales the bone internally. The head portion of the screw remains outside the bone and couples the bone and the bone plate together. Currently available bone screws provide good fixture strength when coupled coaxially with the opening of the bone plate.
[003] In many instances (for example, in cases of curved bone, oblique fractures, etc.) the bone screw is needed to be fixed at a certain angle to achieve better fixation. However, the currently available bone screws are unsuitable in such cases since they do not have sufficient coupling strength when coupled at an angle with the bone plate. This increases the risk of loosening of the bone plate and/or misalignment of the bone fragments. The misalignment of the bone fragments in a damaged bone can lead to several clinical complications.
[004] Therefore, arises a need for an improved bone fixture assembly to overcome the problems associated with the conventional bone fixture assemblies.
SUMMARY OF THE INVENTION
[005] Particular embodiments of the present disclosure are described herein below with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are mere examples of the disclosure, which may be embodied in various forms. Well-known functions or constructions are not described in detail to avoid obscuring the present disclosure in unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.
[006] The present disclosure relates to a fixture assembly including a male coupling component and a female coupling component. In an embodiment, the male coupling component includes a first portion including a plurality of threads provided on an outer surface of the first portion along at least a part of the length of the first portion. Each thread of the plurality of threads has a crest lying on a respective curvature defined by a corresponding center of curvature and a corresponding radius of curvature. The radius of curvature and the center of curvature of at least one thread of the plurality of threads is different than the radius of curvature and the center of curvature of other threads of the plurality of threads.
[007] In an embodiment, the female coupling component includes an aperture including a threaded portion. The threaded portion includes a plurality of threads provided on an inner surface of the threaded portion on at least a part of a circumference of the threaded portion. Each thread of the plurality of threads has a trough lying on a respective curvature defined by a corresponding center of curvature and a corresponding radius of curvature. The radius of curvature and the center of curvature of at least one thread of the plurality of threads is different than the radius of curvature and the center of curvature of other threads of the plurality of threads.
BRIEF DESCRIPTION OF DRAWINGS
[008] The summary above and the detailed description of descriptive embodiments, is better understood when read in conjunction with the apportioned drawings. For illustration of the present disclosure, exemplary constructions of the disclosure are shown in the drawings. However, the disclosure is not limited to specific methods and instrumentality disclosed herein. Moreover, those in the art will understand that the drawings are not to scale.
[009] Fig. 1a depicts a perspective view of a male coupling component 100, according to an embodiment of the present disclosure.
[0010] Fig. 1b depicts a perspective view of a female coupling component 101, according to an embodiment of the present disclosure.
[0011] Figs. 1c-1d depict perspective views of a coupling between the male coupling component 100 and the female coupling component 101 at two different angles, according to an embodiment of the present disclosure.
[0012] Figs. 2a-2c depict cross-sectional views of a first portion 103 of the male coupling component 100, according to an embodiment of the present disclosure.
[0013] Figs. 3a-3b depict cross-sectional views of an aperture 102 of the female coupling component 101, according to an embodiment of the present disclosure.
[0014] Figs. 4a-4b depict cross-sectional views of the coupling between the male coupling component 100 and the female coupling component 101 at two different angles, according to an embodiment of the present disclosure.
DETAILED DESCRIPTION OF DRAWINGS
[0015] Prior to describing the disclosure in detail, definitions of certain words or phrases used throughout this patent document will be defined: the terms "include" and "comprise", as well as derivatives thereof, mean inclusion without limitation; the term "or" is inclusive, meaning and/or; the phrases "coupled with" and "associated therewith", as well as derivatives thereof, may mean to include, be included within, interconnect with, contain, be contained within, connect to or with, couple to or with, be communicable with, cooperate with, interleave, juxtapose, be proximate to, be bound to or with, have a property of, or the like. Definitions of certain words and phrases are provided throughout this patent document, and those of ordinary skill in the art will understand that such definitions apply in many, if not most, instances to prior as well as future uses of such defined words and phrases.
[0016] Reference throughout this specification to “one embodiment,” “an embodiment,” or similar language means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases “in one embodiment,” “in an embodiment,” and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment, but mean “one or more but not all embodiments” unless expressly specified otherwise. The terms “including,” “comprising,” “having,” and variations thereof mean “including but not limited to” unless expressly specified otherwise. An enumerated listing of items does not imply that any or all of the items are mutually exclusive and/or mutually inclusive, unless expressly specified otherwise. The terms “a,” “an,” and “the” also refer to “one or more” unless expressly specified otherwise.
[0017] Although the operations of exemplary embodiments of the disclosed method may be described in a particular, sequential order for convenient presentation, it should be understood that the disclosed embodiments can encompass an order of operations other than the particular, sequential order disclosed. For example, operations described sequentially may in some cases be rearranged or performed concurrently. Further, descriptions and disclosures provided in association with one particular embodiment are not limited to that embodiment, and may be applied to any embodiment disclosed herein. Moreover, for the sake of simplicity, the attached figures may not show the various ways in which the disclosed system, method, and apparatus can be used in combination with other systems, methods, and apparatuses.
[0018] Furthermore, the described features, advantages, and characteristics of the embodiments may be combined in any suitable manner. One skilled in the relevant art will recognize that the embodiments may be practiced without one or more of the specific features or advantages of a particular embodiment. In other instances, additional features and advantages may be recognized in certain embodiments that may not be present in all embodiments. These features and advantages of the embodiments will become more fully apparent from the following description and apportioned claims, or may be learned by the practice of embodiments as set forth hereinafter.
[0019] The present disclosure relates to a fixture assembly including a male coupling component and a female coupling component. The male coupling component includes a first portion provided with threads and the female coupling component includes at least one aperture having a threaded portion provided with threads. The threads on the first portion and the threaded portion of the aperture are designed such that the male coupling component can be coupled with the female coupling component at different angles as needed while maintaining sufficient coupling strength.
[0020] Now referring to figures, Fig. 1a depicts an exemplary male component 100 (or male component 100), according to an embodiment of the present disclosure. In an embodiment, the male component 100 has a first end 100a, a second end 100b and a central axis 106 and includes a first portion 103 and a second portion 104. The first portion 103 is disposed towards the first end 100a. The second portion 104 extends from the first portion 103 towards the second end 100b and has an elongated structure. The second portion 104 may be smooth, partially threaded or fully-threaded. In the depicted embodiment, the second portion 104 is fully-threaded. The second portion 104 is configured to be introduced inside any desired surface (e.g., a bone) for fixation. The first portion 103 may be partially or fully threaded. In an exemplary implementation, the first portion 103 is fully threaded. The threads of the first portion 103 have crests and troughs. In an embodiment, the first portion 103 and the second portion 104 have a circular cross-section, though they may have any other suitable cross-section. The first portion 103 and the second portion 104 may have the same or different diameters. In an embodiment, the first portion 103 has a larger diameter than the second portion 104. In an embodiment, the male component 100 can be a screw as depicted in Figs. 1c-1d. It should be appreciated that the depiction of the male component 100 as a screw is merely exemplary. The male component 100 can be any elongated structure having threads as per the teachings of the present disclosure and capable of being inserted into an aperture and the same is within the scope of the present disclosure.
[0021] Fig. 1b depicts an exemplary female coupling component 101 (or female component 101), according to an embodiment of the present disclosure. The female component 101 includes an aperture 102. The aperture 102 is at least partially threaded (explained later). The threads of the aperture 102 have crests and troughs. Further, the aperture 102 has a central axis 107. The aperture 102 of the female component 101 is configured to receive at least a portion of the male component 100 (e.g., the first portion 103 in the depicted embodiment). The aperture 102 may be of any suitable size and shape.
[0022] The male component 100 and the female component 101 form a fixture assembly. Threads of the first portion 103 and the aperture 102 are designed such that the male component 100 can be coupled to the female component 101 at any desirable angle within a pre-define range of angles. The pre-defined range of angles forms a cone about the central axis 107 of the aperture 102. For instance, Fig. 1c and Fig. 1d depict the male component 100 coupled to the female component 101 at a first angle A and a second angle B, respectively. The first angle A and the second angle B are angles between the central axis 106 and the central axis 107.
[0023] Now referring to Fig. 2a, the first portion 103 of the male component 100 includes a plurality of threads 110a – 110f (or threads 110a – 110f). The threads 110a – 110f are provided on an outer surface of the first portion 103 along at least a part of the length of the first portion 103. In the depicted embodiment, the threads 110a – 110f cover the entire length of the first portion 103. Though the threads 110a – 110f are shown to be provided on the entire circumference of the first portion 103, in an embodiment, the threads 110a – 110f may be present only on a portion of the circumference of the first portion 103. The number of threads illustrated in Figs. 2a – 2c are merely exemplary and the first portion 103 may be provided with any number of threads.
[0024] Each thread of the threads 110a-110f has a crest (not shown) lying on a respective curvature 202a-202f. For example, the crest of the thread 110a lies on the curvature 202a, the crest of the thread 110b lies on the curvature 202b, and so on. Each curvature 202a – 202f is defined by a corresponding center of curvature 203a – 203f and a corresponding radius of curvature 204a – 204f as shown in Figs. 2a – 2b. For example, the curvature 202a of the thread 110a is defined by the center of curvature 203a and the radius of curvature 204a. Similarly, the curvature 202b of the thread 110b is defined by the center of curvature 203b and the radius of curvature 204b and so on. In an embodiment, the threads 110a – 110f are designed such that the center of curvature and the radius of curvature of at least one thread of the threads 110a – 110f are different than the centers of curvature and the radii of curvature of other threads of the threads 110a – 110f. In the depicted embodiment, the centers of curvature 203a – 203f and the radii of curvature 204a – 204f are different for each thread of the threads 110a – 110f, i.e., no two threads of the threads 110a – 110f have the same the center of curvature and radius of curvature. Consequently, the curvatures 202a – 202f neither coincide with each other nor are they concentric as can be seen in Fig. 2a. According to an embodiment, the radii of curvature 204a – 204f decrease from the first end 100a towards the second end 100b. For example, the radius of curvature 204a of the thread 110a (which is the nearest thread to the first end 100a) is larger than the radius of curvature 204b of the thread 110b. Similarly, the radius of curvature 204b is larger than the radius of curvature 204c of the thread 110c and so on. Accordingly, the radius of curvature 204f of the thread 110f (which is the nearest thread to the second end 100b) is the smallest amongst the threads 110a – 110f. Consequently, the threads 110a – 110f form a concave profile. It should be appreciated though that the radii of curvature 204a – 204f may increase from the first end 100a towards the second end 100b in an embodiment.
[0025] In an embodiment, the centers of curvature 203a – 203f of the threads 110a – 110f are co-linear. For example, the centers of curvature 203a - 203f of the threads 110a – 110f lie on an axis 211 passing through the crest of the thread which is nearest to the second end 100b (the thread 110f in the depicted embodiment) as illustrated in Fig. 2c. The distance between adjacent centers of curvature 203a – 203f may be the same or different. In the depicted embodiment, the adjacent centers of curvature 203a – 203f of the threads 110a – 110f are equidistant. Further, the centers of curvature 203a – 203f are at distances 205a – 205f, respectively, when measured from the closest point from the first end 100a and lying on the central axis 106 (the point 201 in the depicted embodiment) as shown in Fig. 2c. As illustrated, the center of curvature 203a of the thread 110a is the farthest from the point 201 and the center of curvature 203f of the thread 110f is the nearest to the point 201.
[0026] In an embodiment, the first portion 103 includes a slot 103a provided towards the first end 100a. The slot 103a is configured to receive a portion of an instrument to grip and rotate the male component 100 during coupling and decoupling with the female component 101. The slot 103a may have suitable shape such as, without limitation, hexagonal, circular, oval, square, rectangular, etc.
[0027] Multi-centered and multi-radii threads provided on the first portion 103 enable the coupling of the male component 100 with the female component 101 at any desired angle within a range of angles. The range of angles within which the male component 100 can be coupled depends at least in part upon the positions of the centers of curvature and the radii of curvature of threads on the first portion 103. For example, any desired range of angles can be obtained by appropriately designing one or more of the distances 205a – 205f, the radii of curvature 204a – 204f and/or the position of the axis on which the centers of curvature 203a – 203f lie.
[0028] Now referring to Figs. 3a – 3b, the aperture 102 has a first end 102c and a second end 102d, and includes a threaded portion 102a having a plurality of threads 105a-105d (or threads 105a – 105d) provided on an inner surface of the threaded portion 102a. The threaded portion 102a extends for at least a partial length of the aperture 102. In the depicted embodiment, the threaded portion 102a extends for a partial length of the aperture 102. Further, the threads 105a – 105d are provided on at least a part of the circumference of the threaded portion 102a. In the depicted embodiment, the threads 105a – 105d are provided on the entire circumference of the threaded portion 102a. One or more threads of the threads 105a – 105d engage (or lock) with one or more threads of the threads 110a – 110f depending upon the angle at which the male component 100 is coupled to the female component 101. The number of threads illustrated in Figs. 3a – 3b are merely exemplary and the aperture 102 may be provided with any number of threads.
[0029] Each thread 105a-105b of the threads 105a – 105d has a trough (not shown) lying on a respective curvature 303a-303d. For example, the trough of the thread 105a lies on the curvature 303a, the trough of the thread 105b lies on the curvature 303b and so on. Each curvature 303a-303d is defined by a corresponding center of curvature 301a – 301d and a corresponding radius of curvature 304a-304d. For example, the curvature 303a of the thread 105a is defined by the center of curvature 301a and the radius of curvature 304a. Similarly, the curvature 303b of the thread 105b is defined by the center of curvature 301b and the radius of curvature 304b and so on. In an embodiment, the threads 105a – 105d are designed such that center of curvature and the radius of curvature of at least one thread of the threads 105a – 105d are different than the centers of curvature and the radii of curvature of other threads of the threads 105a – 105d. In the depicted embodiment, the centers of curvature 301a – 301d and the radii of curvature 304a – 304d are different for each thread of the threads 105a – 105d, i.e., no two threads of the threads 105a – 105d have the same center of curvature and the radius of curvature. Consequently, the curvatures 303a – 303d neither coincide nor are they concentric as can be seen in Fig. 3a. According to an embodiment, the radii of curvature 304a – 304d decrease from the first end 102c towards the second end 102d. For example, the radius of curvature 304a of the thread 105a (which is the nearest thread to the first end 102c) is larger than the radius of curvature 304b of the thread 105b. Similarly, the radius of curvature 304b of the thread 105b is larger than the radius of curvature 304c of the thread 105c. Accordingly, the radius of curvature 304d of the thread 105d (which is the nearest to the second end 102d) is the smallest amongst the threads 105a – 105d. Consequently, the threads 105a – 105d form a concave profile. It should be appreciated though that radii of curvature 304a – 304d may increase from the first end 102c to the second end 102d in an embodiment.
[0030] In an embodiment, the centers of curvature 301a – 301d are co-linear. In an embodiment, the centers of curvature 301a – 301d lie on an axis 310 that passes through the trough of a thread nearest to the second end 102d (the thread 105d in the depicted embodiment) as illustrated in Fig. 3b. The distance between adjacent centers of curvature 301a – 301d may be the same or different. In the depicted embodiment, the adjacent centers of curvature 301a – 301d of the threads 105a – 105d are equidistant. Further, the centers of curvature 301a – 301d are at distances 302a – 302d, respectively, when measured from the closest point from the first end 102c and lying on the central axis 107 (the point 305 in the depicted embodiment) as shown in Fig. 3b. As illustrated the center of curvature 301a of the thread 105a is the farthest from the point 305 and the center of curvature 301d of the thread 105d is the nearest to the point 305.
[0031] In an embodiment, the threaded portion 102a may have a concave shape such that its inner diameter gradually increases from the second end 102d towards the first end 102c. This provides enough space between adjacent threads 105a – 105d to engage with one or more threads of the threads 110a – 110f even when the male component 100 is coupled with the female component 101 at an angle. In an embodiment, inner diameter of the threaded portion 102a towards the second end 102d corresponds to the outer diameter of the first portion 103.
[0032] In an embodiment, the aperture 102 may further include an extended portion 102b provided towards the first end 102c. At least a part of the first portion 103 of the male component 100 resides in the extended portion 102b. In an embodiment, the extended portion 102b has a larger diameter than the threaded portion 102a and has a taper towards the second end 102d. The larger diameter of the extended portion 102b ensures that there is sufficient space for at least a part of the first portion 103 to reside even when the male component 100 is coupled at different angles.
[0033] Multi-centered and multi-radii threads provided in the aperture 102 enable the coupling of the male component 100 with the female component 101 at any desired angle within a range of angles. The range of angles within which the male component 100 can be coupled depends at least in part upon the positions of the centers of curvature and the radii of curvature of threads in the aperture 102. For example, any desired range of angles can be obtained by appropriately designing one or more of the distances 302a – 302d, the radii of curvature 304a – 304d and/or the position of the axis on which the centers of curvature 301a – 301d lie.
[0034] The coupling of the male component 100 and the female component 101 is now explained with the help of a few examples. Fig. 4a depicts a cross-sectional view showing a coaxial coupling of the male component 100 and the female component 101, according to an exemplary scenario. In other words, the central axis 106 of the male component 100 and the central axis 107 of the aperture 102 are aligned (i.e., have a zero degree between them). In this case, the first portion 103 sits vertically within the aperture 102. The threads 110c – 110e of the first portion 103 reside within the threads 105a – 105c, respectively, of the aperture 102. The thread 110f of the first portion 103 engages (or locks) with the thread 105d of the aperture 102 at points 401 and 402 as shown in Fig. 4a, thereby locking the male component 100 with the female component 101 coaxially and providing a secure coupling between them.
[0035] Fig. 4b depicts a cross-sectional view showing a coupling of the male component 100 with the female component 101 at an angle C, according to an exemplary scenario. The angle C is the angle between the central axis 106 of the male component 100 and the central axis 107 of the aperture 102 as shown. The angle C may be any desirable angle. In this case, the first portion 103 resides angularly within the aperture 102. The thread 110f of the first portion 103 engages (or locks) with the thread 105a of the aperture 102 at point 404 and the thread 110c of the first portion 103 engages (or locks) with the thread 105a of the aperture 102 at point 403 as shown in Fig. 4b, thereby locking the male component 100 with the female component 101 at the angle C and providing a secure coupling between them.
[0036] The proposed fixture assembly has several applications. In an example scenario, the proposed fixture assembly is used for fixing damaged parts of a bone. In an embodiment, the damaged parts of the bone are fixated using a set of male components 100 (e.g., a set of bone screws) and a bone plate having a set of corresponding female components 101. For example, each bone screw of the set of bone screws includes a head having threads similar to the threads 110a – 110f and a stem similar to the second portion 104. The bone plate includes a set of apertures similar to the aperture 102 of the female component 101. The set of bone screws, the set of apertures and the bone plate have any desired shapes and dimensions. The bone plate is disposed directly on the affected area of the bone (or on skin above the affected area of the bone) at a suitable location. Each aperture of the set of apertures receives a corresponding bone screw of the set of bone screws. The bone screw may be inserted into the aperture at a desired angle using drilling or any other suitable technique. The stem of the bone screw is inserted into the bone. The head of the bone screw resides within the aperture. The threads on the head of the bone screw are coupled with the threads of the aperture at the desired angle as explained earlier. In an embodiment, the set of bone screws are coupled to the set of apertures at different angles based upon requirements so as to give proper fixation to the bone. The threads of the set of bone screws and the set of apertures designed according to the teaching of the present disclosure ensure a tight coupling between the set of the bone screws and the set of apertures (and therefore, with the bone plate) even when they are coupled at an angle. Consequently, the bone plate remains securely fixated at the desired position. Thus, the problem of loosening and dislocation of bone screws and/or the bone plate encountered with conventional bone fixture assemblies is overcome by applying the teachings of the present disclosure. Further, the bone screw can be advanced in an optimal manner at a desired angle chosen based upon the bone quality. In addition, the threads on the stem of the bone screw engage with the bone and threads on the head of the bone screw engage with threads of the corresponding aperture of the bone plate, thereby providing dual fixation. This improves the fixation strength.
[0037] Though, the use of the proposed fixture assembly has been explained herein for the bone fixation, it should not be considered as limiting and the proposed fixture assembly can be deployed in many other applications, where a variable angle coupling is desirable. Examples of such applications include, without limitation, wood working, construction, manufacturing, etc.
[0038] The scope of the invention is only limited by the appended patent claims. More generally, those skilled in the art will readily appreciate that all parameters, dimensions, materials, and configurations described herein are meant to be exemplary and that the actual parameters, dimensions, materials, and/or configurations will depend upon the specific application or applications for which the teachings of the present invention is/are used. , Claims:WE CLAIM
1. A male coupling component (100) of a fixture assembly comprising:
a. a first portion (103) provided towards a first end (100a) of the male coupling component (100), the first portion (103) comprising a plurality of threads (110a – 110f) provided on an outer surface of the first portion (103) along at least a part of the length of the first portion (103); each thread (110a – 110f) of the plurality of threads (110a – 110f) has a crest lying on a respective curvature (202a – 202f) defined by a corresponding center of curvature (203a – 203f) and a corresponding radius of curvature (204a – 204f); the radius of curvature and the center of curvature of at least one thread of the plurality of threads (110a – 110f) being different than the radius of curvature and the center of curvature of other threads of the plurality of threads (110a – 110f).
2. The male coupling component (100) as claimed in claim 1, wherein the male coupling component (100) comprises a second portion (104) extending from the first portion (103) towards a second end (100b) of the male coupling component (100).
3. The male coupling component (100) as claimed in claim 1, wherein the centers of curvature (203a – 203f) of the plurality of threads (110a – 110f) are co-linear.
4. The male coupling component (100) as claimed in claim 1, wherein the centers of curvature (203a – 203f) of the plurality of threads (110a – 110f) lie on an axis (211) passing through the crest of a thread (110f) nearest to a second end (100b) of the male coupling component (100).
5. The male coupling component (100) as claimed in claim 1, wherein the radii of curvature (204a – 204f) of the plurality of threads (110a – 110f) decrease from a first end (100a) of the male coupling component (100) towards a second end (100b) of the male coupling component (100).
6. The male coupling component (100) as claimed in claim 1, wherein adjacent centers of curvature (203a – 203f) of the plurality of threads (110a – 110f) are equidistant.
7. A female coupling component (101) of a fixture assembly comprising:
a. an aperture (102) comprising a threaded portion (102a), the threaded portion (102a) comprising a plurality of threads (105a – 105d) provided on an inner surface of the threaded portion (102a) on at least a part of a circumference of the threaded portion (102a); each thread (105a – 105d) of the plurality of threads (105a – 105d) has a trough lying on a respective curvature (303a – 303d) defined by a corresponding center of curvature (301a – 301d) and a corresponding radius of curvature (304a – 304d); the radius of curvature and the center of curvature of at least one thread of the plurality of threads (105a – 105d) being different than the radius of curvature and the center of curvature of other threads of the plurality of threads (105a – 105d).
8. The female coupling component (101) as claimed in claim 7, wherein the aperture (102) comprises an extended portion (102b) provided towards a first end (102c) of the aperture (102).
9. The female coupling component (101) as claimed in claim 7, wherein the centers of curvature (301a – 301d) of the plurality of threads (105a – 105d) are co-linear.
10. The female coupling component (101) as claimed in claim 7, wherein the centers of curvature (301a – 301d) of the plurality of threads (105a – 105d) lie on an axis (310) passing through the trough of a thread (105d) nearest to a second end (102d) of the aperture (102).
11. The female coupling component (101) as claimed in claim 7, wherein the radii of curvature (304a – 304d) of the plurality of threads (105a – 105d) decrease from a first end (102c) of the aperture (102) towards a second end (102d) of the aperture (102).
12. The female coupling component (101) as claimed in claim 7, wherein adjacent centers of curvature (301a – 301d) of the plurality of threads (105a – 105d) are equidistant.
13. The female coupling component (101) as claimed in claim 7, wherein inner diameter of the threaded portion (102a) increases from a second end (102d) of the aperture (102) towards a first end (102c) of the aperture (102).