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Glenoid Implant

Abstract: TITLE OF INVENTION: GLENOID IMPLANT A glenoid implant (100) includes a first plate (110) having a medial surface (110a). The medial surface (110a) is configured to engage with a surface of a scapula. A plurality of apertures is provided on the medial surface (110a) of the first plate (110). An aperture (112, 114) of the plurality of apertures is configured to receive one or more fasteners (150, 180) of a set of fasteners. The one or more fasteners (150, 180) are slidable along the length of the aperture (112, 114), thereby adjusting the position of the one or more fasteners (150, 180) within the aperture (112, 114). Fig. 1

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Patent Information

Application #
Filing Date
24 April 2024
Publication Number
25/2024
Publication Type
INA
Invention Field
BIO-MEDICAL ENGINEERING
Status
Email
Parent Application

Applicants

Meril Corporation (I) Private Limited
Survey No. 135/139, Muktanand Marg, Bilakhia House, Pardi, Vapi, Valsad-396191 Gujarat, India.

Inventors

1. KANSAL, Siddhant
301/A Rameshwar Complex, Opposite Jaltarang Society, Halar Road, Valsad - 396001, Gujarat, India
2. PATEL, Snehal
At Post Velparva, Vachla Falia, Pardi, Valsad - 396125, Gujarat, India
3. SHAH, Naman
235/3, Opposite Pleser Shop, Bazar Road, Zanda Chowk, Vapi - 396191, Gujarat
4. PATEL, Vyom
Vyomesh’ Bunglow, Anandnagar, Tokarkhada, Silvassa- 396230, Dadra and Nagar Haveli and Daman and Diu, India
5. KV, Latheesh
Krishnalayam, Kudukka valappil, Edakkeppuram, Cherukunnu PO, Kannur, 670301, Kerala, India

Specification

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

1. TITLE OF THE INVENTION:
GLENOID IMPLANT
2. 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 the manner in which it is to be performed:


FIELD OF INVENTION
[1] The present disclosure relates to an orthopedic implant. More particularly, the present disclosure relates to a glenoid implant.
BACKGROUND OF INVENTION
[2] Glenoid implants are orthopedic devices used in shoulder replacement surgeries. The glenoid is the socket part of the shoulder joint, and in case there is severe damage or degeneration in this area, due to, for example, arthritis or severe fractures, a total shoulder replacement may be necessary. During shoulder replacement surgery, the damaged or diseased parts of the shoulder joints are removed and replaced with artificial components (implants). These implants are designed to mimic the natural shape and function of the glenoid socket and allow articulation of the humeral head.
[3] Conventional glenoid implants typically include a baseplate with prefabricated screws that help to secure the baseplate to the glenohumeral joint. But there are complications associated with fixing the baseplate with the bone because of patient-specific anatomical variations. Differences in bone shape, size, curvatures and density of the bone brings challenge for achieving optimal fixation. For example, the standard configuration of the prefabricated screws may not adequately address the unique geometry of the bone. This may result in mispositioning of the implant and loosening of the implant (i.e., irregular alignment), which may compromise its stability or biomechanical support.
[4] If revisions or adjustments to the implant are required in the future, the use of prefabricated screws may make the process even more challenging. Removing and replacing the screws may be complicated, requiring additional surgical steps and increasing the risk of complications. Conventional glenoid implants, with fixed screws configurations provide limited adjustability during surgery and may not accommodate perfectly with the patient's anatomical features.
[5] Thus, there arises a need for a glenoid implant that overcomes challenges with conventional ones.
SUMMARY OF INVENTION
[6] 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.
[7] The present disclosure relates to a glenoid implant. In an embodiment, the glenoid implant includes a first plate. The first plate has a medial surface configured to engage with a surface of a scapula. A plurality of apertures are provided on the medial surface of the first plate. In an embodiment, an aperture of the plurality of apertures is configured to receive one or more fasteners of a set of fasteners. The one or more fasteners are slidable along the length of the aperture, thereby adjusting the position of the one or more fasteners within the aperture.
BRIEF DESCRIPTION OF DRAWINGS
[8] The summary above, as well as the following detailed description of illustrative embodiments, is better understood when read in conjunction with the apportioned drawings. For the purpose of illustrating 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.
[9] Fig. 1 depicts an exploded view of a glenoid implant 100 in accordance with an embodiment of the present disclosure.
[10] Fig. 2a depicts a perspective view of a fastener 150 in accordance with an embodiment of the present disclosure.
[11] Fig. 2b depicts a perspective view of a fastener 180 in accordance with an embodiment of the present disclosure.
[12] Fig. 3a depicts a perspective view of a first plate 110 of the glenoid implant 100 in accordance with an embodiment of the present disclosure.
[13] Fig. 3b depicts a cross-sectional view of the first plate 110 of the glenoid implant 100 in accordance with an embodiment of the present disclosure.
[14] Fig. 4 depicts a perspective view of a second plate 210 of the glenoid implant 100 in accordance with an embodiment of the present disclosure.
[15] Fig. 5a depicts a perspective view of the assembled glenoid implant 100 in accordance with an embodiment of the present disclosure.
[16] Fig. 5b depicts another perspective view of the assembled glenoid implant 100 in accordance with an embodiment of the present disclosure.
DETAILED DESCRIPTION OF THE DRAWINGS
[1] 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.
[2] 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.
[3] 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.
[4] 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.
[5] The present disclosure relates to a glenoid implant. The glenoid implant includes a first plate and a second plate. The first plate includes a plurality of apertures having a corresponding slot configured to receive one or more fasteners. The plurality of apertures provides surgeons with an ability to adjust the positioning of the one or more fasteners along the length of the plurality of apertures. Due to the adjustable positioning of the one or more fasteners within the glenoid cavity, the proposed glenoid implants offer flexibility to customize the glenoid implant placement to better match the patient’s individual anatomy, ultimately improving the stability, function, and long- term success of the implant.
[6] In the conventional implants, a surgeon is required to position pre-fabricated pegs provided on the plate during its fixation, which might lead to loosening of the conventional glenoid implant and compromised stability as well as functionality in case of improper alignment and fixation of the pegs. In contrast, the glenoid implant of the present disclosure allows the surgeon to slide and adjust the one or more fasteners within the plurality of apertures of the plate as needed to align and fix the one or more fasteners at a desired location with high precision. The proposed glenoid implant thus allows the surgeon to customize the implant fixation at the desired location depending upon exact underlying anatomy of a patient. As a result, the risk of inadequate alignment and placement of the fasteners onto the glenoid cavity is reduced, thereby reducing the risk of loosening of the glenoid implant and enhancing its stability and functionality of the implant to replace damaged or worn-out glenoid of the glenohumeral joint.
[7] Now referring to the figures, Fig. 1 depicts a glenoid implant 100 (hereinafter, implant 100) according to an embodiment. The implant 100 includes a first plate 110, a second plate 210 and a set of fasteners. The first plate 110 and the second plate 210 are fixed to a glenohumeral joint (i.e., the joint formed between a glenoid cavity of a scapula and the humeral head of the humerus) of a patient with the help of the set of fasteners during the implantation procedure.
[8] The first plate 110 is configured to sit against a prepared surface of the scapula (i.e., glenoid cavity). The second plate 210 is coupled to the first plate 110 and is configured to articulate with a humeral element of a shoulder prosthesis. The set of fasteners sits within the prepared surface of the scapula and help in anchoring the first plate 110 to the prepared surface of the glenoid cavity. At least some fasteners of the set of fasteners are adjustably coupled to the first plate 110 (explained later) as per surgeon's requirement. The set of fasteners includes any suitable fasteners. The set of fasteners may include the same or different types of fasteners.
[9] Figs. 2a – 2b illustrate various embodiments of fasteners (e.g., a fastener 150 and a fastener 180) that may be used with the implant 100. They should not be considered as limiting and any other suitable fasteners may be used. Referring to Fig. 2a, the fastener 150 has a first end 150a and a second end 150b. The fastener 150 has a generally cylindrical shape, though it may have any other suitable shape. The fastener 150 includes a first portion 152 provided towards the first end 150a and a second portion 154 provided towards the second end 150b. The first portion 152 has a smooth outer surface. The second portion 154 includes a plurality of grooves 156 provided circumferentially. The plurality of grooves 156 has a pre-defined shape such as, without limitation, V-shape, U-shape, tapered, triangular, straight, etc. In the depicted embodiment, the plurality of grooves 156 is U-shaped. Though the first portion 152 is illustrated to have a smooth surface, in an embodiment, the first portion 152 may also include a plurality of grooves similar to the plurality of grooves 156. A rim 158 is provided at the first end 150a of the fastener 150. The rim 158 is used to couple the fastener 150 with the first plate 110 at a desired position, which has been explained later. In an embodiment, the first portion 152 and the second portion 154 sit within the prepared surface of the scapula. The fastener 150 may be made of any suitable biocompatible material, such as, without limitation, titanium, cobalt chromium, SS316, etc., or a combination thereof. In an embodiment, the fastener 150 is made of titanium.
[10] Referring to Fig. 2b, the fastener 180 has a first end 180a and a second end 180b. The fastener 180 has a generally cylindrical shape, though it may have any other suitable shape. The fastener 180 includes a first portion 182 provided towards the first end 180a and a second portion 184 provided towards the second end 180b. The first portion 182 has a smooth surface. The second portion 184 includes a plurality of grooves 186 provided circumferentially. The plurality of grooves 186 has a pre-defined shape such as, without limitation, V-shape, U-shape, tapered, triangular, straight, etc. In the depicted embodiment, the plurality of grooves 186 are tapered grooves. The fastener 180 may have the same or different length as that of the fastener 150. In an exemplary embodiment, the fastener 180 is longer than the fastener 150. The longer length of the fastener 180 provides better fixation and more stability and support to bear load and stress during physiological activities. A rim 188 is provided at the first end 180a of the fastener 180. The rim 188 is used to couple the fastener 180 with the first plate 110 at a desired position, which has been explained later. In an embodiment, the first portion 182 and the second portion 184 sit within the prepared surface of the scapula. The fastener 180 may be made of any suitable biocompatible material, such as, without limitation, titanium, cobalt chromium, SS316, etc., or a combination thereof. In an embodiment, the fastener 180 is made of titanium.
[11] The plurality of grooves 156 of the fastener 150 and the plurality of grooves 186 of the fastener 180 help in attaching the first plate 110 to the glenohumeral cavity. Further, they provide stability and prevent the implant 100 from shifting or loosening over time.
[12] In the depicted embodiment shown in Fig. 1, the implant 100 includes three fasteners 150 and one fastener 180. It should be appreciated that this should not be considered as limiting and any combination of the fasteners 150 and 180 and/or any other suitable fasteners can be used without deviating from the scope of the present disclosure.
[13] Figs. 3a-3b depict the first plate 110 according to an embodiment of the present disclosure. The first plate 110 includes a medial surface 110a, a bearing surface 110b and a first side surface 110c. The first plate 110 may have dimensions according to or depending upon the bone anatomy of the patient or the patient population in consideration. The medial surface 110a sits against the prepared surface of the scapula. The bearing surface 110b is provided on a lateral side of the first plate 110 and is configured to receive the second plate 210. The first plate 110 may be made of any suitable biocompatible material, such as, without limitation, titanium, cobalt chromium, SS316 etc., or a combination thereof. In an embodiment, the first plate 110 is made of titanium.
[14] In an embodiment, the first plate 110 includes a plurality of apertures provided on medial surface 110a of the first plate 110. The plurality of apertures includes at least an aperture configured to receive one or more fasteners of the set of fasteners, which may be adjustably coupled to the aperture. The plurality of apertures includes a first aperture 112 and a second aperture 114. The first aperture 112 may be of any suitable shape, such as, without limitation, rectangular having curved edges, round arch, segmented arch, horseshoe arch, etc. In an exemplary embodiment, the first aperture 112 is rectangular having curved edges. The second aperture 114 may be of any suitable shape, such as, without limitation, rectangular having curved edges, round arch, segmented arch, horseshoe arch, etc. In an exemplary embodiment, the second aperture 114 has a segmented arch shape. Though the first aperture 112 and the second aperture 114 have been shown to have different shapes, in an embodiment, they may have the same shape. In an embodiment, the first aperture 112 is configured to receive at least one fastener of the set of fasteners and the second aperture 114 is configured to receive two or more fasteners of the set of fasteners. The fasteners received by the first aperture 112 and the second aperture 114 may be similar to the fastener 150, the fastener 180, or any combination thereof, or any other suitable fasteners. In the depicted embodiment, the first aperture 112 receives one fastener (e.g., the fastener 150) and the second aperture 114 receives two fasteners (e.g., two fasteners 150). Though it has been shown that the first aperture 112 and the second aperture 114 receive fasteners similar to the fastener 150, it is possible that the first aperture 112 and/or the second aperture 114 may include fasteners of different types. For example, in an embodiment, the first aperture 112 may receive one fastener 150 and the second aperture 114 receives one fastener 150 and one fastener 180. The one or more fasteners received by the first aperture 112 and the second aperture 114 are slidable along the length of the respective apertures, thereby adjusting the position of the one or more fasteners within the respective aperture.
[15] In an embodiment, the first aperture 112 and the second aperture 114 include a first slot 112a and a second slot 114a, respectively. The first slot 112a and the second slot 114a are provided along a periphery of the first aperture 112 and the second aperture 114, respectively, towards a lateral end of the first plate 110. The first slot 112a and the second slot 114a are configured to receive a rim of the at least one fastener. For example, in the depicted embodiment, the first slot 112a receives the rim 158 of the fastener 150 and the second slot 114a receives the rim 158 of two fasteners similar to the fastener 150.
[16] In an embodiment, the rim 158 of the fastener 150 is seated within the first slot 112a of the first aperture 112. The first slot 112a of the first aperture 112 helps in sliding the fastener 150 within the first aperture 112. The fastener 150 may be adjusted to a desired position in the first aperture 112 by moving the fastener 150 sideways along the length of the first aperture 112, in response to which the rim 158 slides within the first slot 112a of the first aperture 112. Similarly, in an embodiment, rims of the one or more fasteners are seated within the second slot 114a of the second aperture 114. The one or more fasteners of the set of fasteners may be adjusted to a desired position in the second aperture 114 by moving the one or more fasteners sideways along the length of the second aperture 114, in response to which rims of the one or more fasteners slides within the second slot 114a of the second aperture 114. The first slot 112a and the second slot 114a provide an interference lock so that the at least one fastener is locked in place and does not come out of the respective apertures.
[17] In an embodiment, the plurality of apertures includes a third aperture 116 provided centrally on the medial surface 110a of the first plate 110. The first aperture 112 and the second aperture 114 may be provided around the third aperture 116. The third aperture 116 receives one fastener of the set of fasteners. In the depicted embodiment, the third aperture 116 receives the fastener 180. In an alternative embodiment, the third aperture 116 receives the fastener 150. The third aperture 116 may be of any suitable shape, such as, without limitation, circle, oval, triangle, square, etc. In an embodiment, the third aperture 116 is circular. The diameter of the third aperture 116 corresponds to the diameter of the respective fastener received by the third aperture 116. In an embodiment, the third aperture 116 may also have a suitable shape (for example, similar to the first aperture 112) for adjusting the position of the fastener coupled to the third aperture 116 in a similar manner as described earlier.
[18] The third aperture 116 includes a third slot 116a configured to receive a rim of the fastener of the set of fasteners (e.g., the rim 188 of the fastener 180 in the depicted embodiment). In other words, the rim 188 of the fastener 180 is seated within the third slot 116a of the third aperture 116.
[19] In an embodiment, the bearing surface 110b includes a plurality of slots. The plurality of slots on the bearing surface 110b of the first plate 110 are used to couple the second plate 210 with the first plate 110. In an embodiment, the plurality of slots of the bearing surface 110b includes a fourth slot 118 and a fifth slot 122, as shown in Fig. 2b. In an embodiment, the fourth slot 118 has a dovetail-shaped geometry and provides a dovetail lock with the second plate 210. In an embodiment, the fifth slot 122 provides an interference lock.
[20] The medial surface 110a of the first plate 110 and/or the set of fasteners (e.g., the fastener 150 and the fastener 180) may include trabecular structures. These trabecular structures include a lattice-like network of interconnected struts or beams that mimics the porous architecture of cancellous bone. This facilitates bone ingrowth and osseointegration, promoting a strong bond between the implant 100 and the surrounding bone tissues.
[21] Referring now to Fig. 4, in an embodiment, the second plate 210 includes a medial surface 214 and a second side surface 214a. The medial surface 214 mates with the bearing surface 110b of the first plate 110. The second plate 210 has complementary dimensions to the first plate 110 that allows the second plate 210 to snugly fit with the first plate 110. Further, the medial surface 214 includes a plurality of protrusions. Each protrusion of the plurality of protrusions provided on the second plate 210 are configured to mate with a corresponding slot of the plurality of slots on the bearing surface 110b of the first plate 110. In an embodiment, the plurality of protrusions includes a first protrusion 216 and a second protrusion 218. The fourth slot 118 of the first plate 110 is configured to mate with the first protrusion 216 of the second plate 210 and the fifth slot 122 of the first plate 110 is configured to mate with the second protrusion 218 of the second plate 210. In an embodiment, the fourth slot 118 of the first plate 110 and the first protrusion 216 of the second plate 210 complement each other and upon mating they form a dovetail lock upon assembly of the first plate 110 and the second plate 210. The dovetail lock ensures a secure interlocking fit, preventing disassembly of the first plate 110 and the second plate 210. Similarly, the mating of the fifth slot 122 of the first plate 110 and the second protrusion 218 of the second plate 210 establishes an interference lock. The interference between the fifth slot 122 and the second protrusion 218 creates friction and prevents separation of the first plate 110 and the second plate 210.
[22] The combination of the dovetail lock and the interference lock ensures a secure and stable coupling between the first plate 110 and the second plate 210. Though the depicted embodiment of the present disclosure includes a dovetail locking mechanism and an interference locking mechanism used for coupling the first plate 110 and the second plate 210, it should be appreciated that any other suitable locking mechanism can be used in lieu of, or in combination with, the disclosed mechanism to achieve the same.
[23] A lateral side of the second plate 210 includes an articulating surface 220 (depicted in Fig. 5a) configured to articulate with the humeral head of the shoulder prosthesis. The articulating surface 220 may have a curvature mimicking the natural shape of the humeral head and facilitates a wide range of motion within the joint. Further, the curvature of the articulating surface 220 ensures proper contact and alignment between the implant 100 and the humeral head during movement.
[24] The second plate 210 may be made of any suitable biocompatible material, such as, without limitation, ultra-high-molecular-weight polyethylene (UHMWPE), polymethyl methacrylate (PMMA), Highly cross-linked polyethylene (HXLPE) including vitamin E etc. In an embodiment the second plate 210 is made of HXLPE with vitamin E. The second plate 210 may have dimensions according to or depending upon the bone anatomy of the patient or the patient population in consideration.
[25] In an embodiment, to assemble the implant 100, firstly, the first plate 110 is assembled with the second plate 210 followed by assembling the set of fasteners with the first plate 110. To assemble the first plate 110 and the second plate 210, the medial surface 214 of the second plate 210 (as shown in Fig. 4a) is aligned with the bearing surface 110b of the first plate 110 and the first side surface 110c of the first plate 110 and the second side surface 214a of the second plate 210 are flushed with each other. Each slot of the plurality of slots provided on the bearing surface 110b of the first plate 110 mates with corresponding protrusion of the plurality of protrusions provided on the medial surface 214, thereby establishing a firm lock between the first plate 110 and the second plate 210.
[26] To assemble the set of fasteners with the first plate 110, the rims of the set of fasteners are inserted into a corresponding aperture of the plurality of apertures provided on the first plate 110. Upon insertion, the rims of the set of fasteners are firmly pressed or snapped into the corresponding slot of the corresponding aperture, facilitating a secure coupling between the set of fasteners and the first plate 110. For example, in the depicted embodiment, the rim 158 of the fastener 150 is snapped into the first slot 112a of the first aperture 112. Similarly, rims 158 of two fasteners 150 are snapped into the second slot 114a of the second aperture 114. Further, the rim 188 of the fastener 180 is snapped into the third slot 116a of the third aperture 116. An assembled view of the glenoid implant 100 is shown in Figs. 5a – 5b.
[27] During the implantation procedure (or during a pre-operative assessment phase), a surgeon may accurately assess the patient’s shoulder anatomy, identify optimal places in the glenoidal cavity where the set of fasteners could be placed for fixing the glenoid implant 100. Based on the assessment, the surgeon prepares the glenoid cavity of the patient during the implantation procedure by removing damaged or diseased tissue, ensuring a clean and stable surface for implantation. Subsequently, the surgeon prepares bone cement and applies it onto the prepared surface of the glenoid cavity. Glenoidal cemented fixation is a surgical procedure commonly used in orthopedics, particularly in joint replacement surgeries such as total shoulder arthroplasty. Once the bone cement is applied, the at least one fastener of the set of fasteners of the glenoid implant 100 inserted into the first slot 112a of the first aperture 112 and the second slot 114a of the second aperture 114 are adjusted to desired positions, for example, by sliding the at least one fastener within the respective slot. The glenoid implant 100 is positioned and pressed into the prepared surface of the glenoid cavity. The cement acts as an intermediary layer between the bone and the glenoid implant 100, providing stability and fixation. The plurality of grooves (e.g., the plurality of grooves 156 of the fastener 150 and the plurality of grooves 186 of the fastener 180) interact with the bone cement, enhancing fixation and ensuring firm stability of the glenoid implant 100 within the glenoid cavity. The bone cement is allowed to cure and harden. During this time, the surgeon may maintain pressure on the glenoid implant 100 to ensure optimal fixation and adherence to the bone.
[28] Since the positions of the set of fasteners of the proposed glenoid implant are adjustable and matched according to the individual patient’s anatomy, the risk of inadequate alignment and placement of the fasteners onto the glenoid cavity is reduced, thereby reducing the risk of loosening of the glenoid implant. Consequently, the stability and functionality of the glenoid implant improves and increases the longevity of the glenoid implant. And the overall patient outcome is improved.
[29] 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. , C , C , Claims:WE CLAIM:
1. A glenoid implant (100) comprising:
a. a first plate (110) comprising:
i. a medial surface (110a) configured to engage with a surface of a scapula; and
ii. a plurality of apertures provided on the medial surface (110a) of the first plate (110), an aperture (112, 114) of the plurality of apertures is configured to receive one or more fasteners (150, 180) of a set of fasteners;
b. wherein the one or more fasteners is slidable along the length of the aperture (112, 114), thereby adjusting the position of the one or more fasteners within the aperture (112, 114).
2. The glenoid implant (100) as claimed in claim 1, wherein the plurality of apertures comprises at least one of:
a. a first aperture (112) configured to receive at least one fastener (150, 180) of a set of fasteners; and
b. a second aperture (114) configured to receive two or more fasteners (150, 180) of the set of fasteners
c. wherein positions of the at least one fastener and the two or more fasteners are adjustable within the respective apertures (112, 114).
3. The glenoid implant (100) as claimed in claim 2, wherein the plurality of apertures comprises a third aperture (116) configured to receive one fastener (150, 180) of the set of fasteners.
4. The glenoid implant (100) as claimed in claim 1, wherein the third aperture (116) comprises a third slot (116a) configured to receive a rim (158, 188) of the one fastener (150, 180).
5. The glenoid implant (100) as claimed in claim 1, wherein the glenoid implant (100) comprises a second plate (210) coupled to the first plate (110) and configured to articulate with a humeral head of a shoulder joint prosthesis.
6. The glenoid implant (100) as claimed in claim 5, wherein the first plate (110) comprises a plurality of slots provided on a bearing surface (110b) of the first plate (110), each slot (118, 122) of the plurality of slots is configured to mate with a corresponding protrusion (216, 218) of a plurality of protrusions provided on a medial surface (214) of the second plate (210).
7. The glenoid implant (100) as claimed in claim 1, wherein the aperture (112, 114) comprises a slot (112a, 114a) provided along a periphery of the aperture (112, 114) towards a lateral end of the first plate (110), wherein each fastener (150, 180) of the set of fastener comprises:
a. a first portion (152, 182) provided towards a first end (150a, 180a) of the fastener (150, 180);
b. a second portion (154, 184) provided towards a second end (150b, 180b) of the fastener (150, 180) and comprising a plurality of grooves (156, 186); and
c. a rim (158, 188) provided at the first end (150a, 180a) and configured to fit within the slot (112a, 114a) of the aperture (112, 114),
d. wherein in response to moving the fastener (150, 180) within the aperture (112, 114), the rim (158, 188) slides within the slot (112a, 114a).
8. The glenoid implant (100) as claimed in claim 1, wherein each fastener of the set of fasteners comprises a trabecular structure.
9. The glenoid implant (100) as claimed in claim 1, wherein the medial surface (110a) of the first plate (110) comprises a trabecular structure.

Documents

Application Documents

# Name Date
1 202421032656-STATEMENT OF UNDERTAKING (FORM 3) [24-04-2024(online)].pdf 2024-04-24
2 202421032656-REQUEST FOR EARLY PUBLICATION(FORM-9) [24-04-2024(online)].pdf 2024-04-24
3 202421032656-FORM-9 [24-04-2024(online)].pdf 2024-04-24
4 202421032656-FORM FOR SMALL ENTITY(FORM-28) [24-04-2024(online)].pdf 2024-04-24
5 202421032656-FORM FOR SMALL ENTITY [24-04-2024(online)].pdf 2024-04-24
6 202421032656-FORM 1 [24-04-2024(online)].pdf 2024-04-24
7 202421032656-FIGURE OF ABSTRACT [24-04-2024(online)].pdf 2024-04-24
8 202421032656-EVIDENCE FOR REGISTRATION UNDER SSI(FORM-28) [24-04-2024(online)].pdf 2024-04-24
9 202421032656-EVIDENCE FOR REGISTRATION UNDER SSI [24-04-2024(online)].pdf 2024-04-24
10 202421032656-DRAWINGS [24-04-2024(online)].pdf 2024-04-24
11 202421032656-DECLARATION OF INVENTORSHIP (FORM 5) [24-04-2024(online)].pdf 2024-04-24
12 202421032656-COMPLETE SPECIFICATION [24-04-2024(online)].pdf 2024-04-24
13 Abstract1.jpg 2024-05-27
14 202421032656-Proof of Right [05-06-2024(online)].pdf 2024-06-05
15 202421032656-FORM-26 [15-06-2024(online)].pdf 2024-06-15
16 202421032656-MSME CERTIFICATE [19-07-2024(online)].pdf 2024-07-19
17 202421032656-FORM28 [19-07-2024(online)].pdf 2024-07-19
18 202421032656-FORM 18A [19-07-2024(online)].pdf 2024-07-19
19 202421032656-FER.pdf 2024-10-10
20 202421032656-FORM 3 [14-11-2024(online)].pdf 2024-11-14
21 202421032656-FORM 3 [12-12-2024(online)].pdf 2024-12-12
22 202421032656-FER_SER_REPLY [07-04-2025(online)].pdf 2025-04-07

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