CN214907918U

CN214907918U - Patella claw fixer

Info

Publication number: CN214907918U
Application number: CN202120814899.6U
Authority: CN
Inventors: 崔海峰
Original assignee: No 964 Hospital Of Joint Logistics Support Force Of Chinese Pla
Current assignee: No 964 Hospital Of Joint Logistics Support Force Of Chinese Pla
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-11-30
Anticipated expiration: 2031-04-21

Abstract

The utility model discloses a kneecap claw fixer, every the bulb pole respectively with correspond first bulb seat with second bulb seat swing joint, and be located the correspondence first bulb groove with in the second bulb inslot, according to different users ' kneecap size, the adjustment the length of telescopic link, and pass through the bulb pole is located the correspondence respectively first bulb groove with second bulb inslot makes a plurality of first claw type spare and a plurality of second claw type spare all with base swing joint waves a plurality of respectively first claw type spare and a plurality of second claw type spare makes the stationary dog is held user's kneecap card, then uses universal screw to pass through on the jack catch screw hole is fixed user's kneecap, better be applicable to different patients, and the adaptability is stronger.

Description

Patella claw fixer

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a patella claw fixer.

Background

Internal fixation machinery to patellar fracture is more, and the common solution of traditional patellar fracture is like ke shi needle and steel wire fixed technology, tension band fixed technology and patella ring etc. the problem of most patellar fracture after-fixing patella can be solved to the homoenergetic, but all complex operation to lead to some destruction to the patella, can not carry out the function exercise early, the whole size and dimension of current patellar claw fixer is fixed, unable adjustment, when treating the fixation to the patella of equidimension, unable fine grabs and closes the patella.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a patella claw fixer aims at solving the whole size and dimension of current patella claw fixer among the prior art and fixes, and unable adjustment treats not the patella of equidimension and fixes, and the unable fine technical problem who grabs the patella that closes.

In order to achieve the above object, the patella claw fixator adopted in the present invention comprises a base and a fixing claw, wherein the two ends of the base are respectively provided with a plurality of first ball seats and a plurality of second ball seats, the fixing claw comprises a plurality of first claw-shaped parts and a plurality of second claw-shaped parts, each first ball seat is provided with a first ball groove, each second ball seat is provided with a second ball groove, each first claw-shaped part and each second claw-shaped part comprise a ball rod, a connecting seat, a telescopic rod and a clamping jaw, each ball rod is movably connected with the corresponding first ball seat and the corresponding second ball seat and is located in the corresponding first ball groove and the second ball groove, the connecting seat is detachably connected with the ball rod and is located at one end of the ball head far away from the corresponding first ball seat and one end of the second ball seat, one end of the telescopic rod is detachably connected with the connecting seat and is positioned at one end, far away from the ball head, of the connecting seat, the other end of the telescopic rod is provided with a connecting frame, the clamping jaws are movably connected with the telescopic rod and correspond to the connecting frame, and each clamping jaw is provided with a threaded hole.

Each telescopic rod comprises a connecting plate, a sleeve and an inner rod, one end of the sleeve is fixedly connected with the connecting plate, the other end of the sleeve is provided with a groove, the connecting plate is detachably connected with the connecting seat, the inner rod is slidably connected with the sleeve and is located inside the groove, and one end, far away from the groove, of the inner rod is provided with the connecting frame.

Each ball head rod comprises a ball head and a rod body, one end of the rod body is fixedly connected with the ball head, the other end of the rod body is provided with threads, the ball head is located in the corresponding first ball head groove and the second ball head groove, one end, far away from the connecting plate, of the connecting seat is provided with a thread groove, and the threads are matched with the thread grooves.

The end, far away from the connecting frame, of the inner rod is provided with a limiting plate, the end, far away from the connecting plate, of the sleeve is provided with a cover plate, and the limiting plate is matched with the cover plate.

The base comprises a socket and a plug, a slot is formed in the socket, an inserting block is arranged on the plug, and the inserting block is connected with the socket in a clamping mode and located in the slot.

The plug is characterized in that a clamping block is arranged at one end, far away from the plug, of the insertion block, a clamping groove is formed in the insertion groove, and the clamping block is matched with the clamping groove.

The beneficial effects of the utility model are embodied in: each ball head rod is movably connected with the corresponding first ball head seat and the corresponding second ball head seat and is positioned in the corresponding first ball head groove and the corresponding second ball head groove, the length of the telescopic rod is adjusted according to the size of the patella of different users, the ball head rods are respectively positioned in the corresponding first ball head groove and the corresponding second ball head groove, so that the first claw-shaped pieces and the second claw-shaped pieces are movably connected with the base, the first claw-shaped pieces and the second claw-shaped pieces are respectively shaken to clamp the patella of the user by the fixed claws, and then universal screws are used for fixing the patella of the user through the threaded holes in the claws, so that the patella fixing clamp is better suitable for different patients and has stronger adaptability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the patella claw fixator of the present invention.

Fig. 2 is a front view of the patella claw anchor of the present invention.

Fig. 3 is a sectional view of the internal structure of fig. 2 taken along line a-a.

Fig. 4 is an enlarged view of a partial structure of fig. 3B.

The ball joint comprises a base 1, a first ball head seat 2, a second ball head seat 3, a first claw-shaped part 4, a second claw-shaped part 5, a ball head rod 6, a connecting seat 7, a telescopic rod 8, a claw 9, a connecting frame 10, a threaded hole 11, a connecting plate 12, a sleeve 13, an inner rod 14, a ball head 15, a rod body 16, a thread 17, a limiting plate 18, a cover plate 19, a socket 20, a plug 21, a plug 22, a plug block 23 and a clamping block.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 4, the present invention provides a patella claw fixator, which includes a base 1 and a fixing claw, two ends of the base 1 are respectively provided with a plurality of first ball seats 2 and a plurality of second ball seats 3, the fixing claw includes a plurality of first claw-shaped pieces 4 and a plurality of second claw-shaped pieces 5, each of the first ball seats 2 is provided with a first ball groove, each of the second ball seats 3 is provided with a second ball groove, each of the first claw-shaped pieces 4 and each of the second claw-shaped pieces 5 includes a ball rod 6, a connecting seat 7, a telescopic rod 8 and a claw 9, each of the ball rods 6 is movably connected with the corresponding first ball seats 2 and the corresponding second ball seats 3, and is located in the corresponding first ball grooves and the corresponding second ball grooves, the connecting seat 7 is detachably connected with the ball rod 6, and is located in a position where the ball rod 15 is far away from the corresponding first ball seats 2 and one ends of the second ball seats 3 One end of the telescopic rod 8 is detachably connected with the connecting seat 7 and is located at one end, away from the ball head 15, of the connecting seat 7, a connecting frame 10 is arranged at the other end of the telescopic rod 8, the clamping jaw 9 is movably connected with the telescopic rod 8 and corresponds to the connecting frame 10, and each clamping jaw 9 is provided with a threaded hole 11.

In this embodiment, each ball head rod 6 is movably connected to the corresponding first ball head seat 2 and the corresponding second ball head seat 3 and is located in the corresponding first ball head groove and the corresponding second ball head groove, the connecting seat 7 is detachably connected to the ball head rod 6 and is located at one end of the ball head 15 away from the corresponding first ball head seat 2 and the second ball head seat 3, one end of the telescopic rod 8 is detachably connected to the connecting seat 7 and is located at one end of the connecting seat 7 away from the ball head 15, the length of the telescopic rod 8 is adjusted according to the size of the patella of different users, and the ball head rods 6 are located in the corresponding first ball head grooves and the corresponding second ball head grooves respectively, so that the plurality of first claw-shaped members 4 and the plurality of second claw-shaped members 5 are movably connected to the base 1, the first claw-shaped parts 4 and the second claw-shaped parts 5 are respectively shaken to enable the fixing claw to clamp the patella of a user, and then the patella of the user is fixed through the threaded holes 11 in the claws 9 by universal screws, so that the fixing claw is better suitable for different patients and has stronger adaptability.

Further, every telescopic link 8 all includes connecting plate 12, sleeve pipe 13 and interior pole 14, sleeve pipe 13 one end with connecting plate 12 fixed connection, sleeve pipe 13's the other end is provided with the recess, connecting plate 12 with connecting seat 7 can dismantle the connection, interior pole 14 with sleeve pipe 13 sliding connection, and be located the inside of recess, interior pole 14 is kept away from the one end of recess is provided with carriage 10.

In this embodiment, the telescopic rod 8 is composed of the sleeve 13 and the inner rod 14, and when the length of the telescopic rod 8 needs to be adjusted according to the size of the patella of a user, the inner rod 14 is pulled to enable the inner rod 14 to slide in the groove, so that the applicability is stronger.

Further, each ball head rod 6 comprises a ball head 15 and a rod body 16, one end of the rod body 16 is fixedly connected with the ball head 15, the other end of the rod body 16 is provided with a thread 17, the ball head 15 is located in the corresponding first ball head groove and the second ball head groove, one end, far away from the connecting plate 12, of the connecting seat 7 is provided with a thread groove, and the thread 17 is matched with the thread groove.

In this embodiment, the ball head 15 is placed in the corresponding first ball head groove and the second ball head groove, so that the rod 16 penetrates through the corresponding first ball head seat 2 and the second ball head seat 3, the connecting seat 7 is installed on the rod 16 through the thread 17, the rod 16 is fixedly connected with the ball head 15, and the ball head is manufactured by adopting an integral molding technology, so that the structure is firmer.

Further, a limiting plate 18 is arranged at one end, away from the connecting frame 10, of the inner rod 14, a cover plate 19 is arranged at one end, away from the connecting plate 12, of the sleeve 13, and the limiting plate 18 is matched with the cover plate 19.

In this embodiment, the limiting plate 18 is fixedly connected to the inner rod 14, and is manufactured by an integral molding technique to have a more firm structure, and the inner rod 14 is placed inside the groove and then covered with the cover plate 19, so that the inner rod 14 cannot be separated from the groove.

Further, the base 1 includes a socket 20 and a plug 21, a slot is provided on the socket 20, an insertion block 22 is provided on the plug 21, and the insertion block 22 is connected with the socket 20 in a clamping manner and is located in the slot.

In this embodiment, when the patella claw fixator is fixed on the patella, the socket 20 and the plug 21 can be connected only by inserting the insertion block 22 into the insertion slot, which is more convenient to operate.

Further, one end, far away from the plug 21, of the insertion block 22 is provided with a fixture block 23, a clamping groove is formed in the insertion groove, the fixture block 23 is matched with the clamping groove, and the fixture block 23 is made of a flexible material.

In this embodiment, the latch 23 is made of a flexible material, and after the latch 23 is pressed and the insertion block 22 is inserted into the insertion slot, the latch 23 is loosened, and under the action of the restoring force of the latch 23, the latch is snapped into the limiting slot, so that the plug 21 and the socket 20 are fixed.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. A patella claw fixator is characterized in that,

the fixture comprises a base and a fixed claw, wherein a plurality of first ball seats and a plurality of second ball seats are respectively arranged at two ends of the base, the fixed claw comprises a plurality of first claw-shaped parts and a plurality of second claw-shaped parts, each first ball seat is provided with a first ball head groove, each second ball seat is provided with a second ball head groove, each first claw-shaped part and each second claw-shaped part respectively comprise a ball head rod, a connecting seat, a telescopic rod and a clamping jaw, each ball head rod is respectively movably connected with the corresponding first ball seat and the corresponding second ball seat and is positioned in the corresponding first ball head groove and the corresponding second ball head groove, the connecting seat is detachably connected with the ball head rod and is positioned at one end of the ball head far away from the corresponding first ball seat and the second ball seat, one end of the telescopic rod is detachably connected with the connecting seat, the clamping jaws are movably connected with the telescopic rod and correspond to the connecting frame, and each clamping jaw is provided with a threaded hole.

2. The patellar claw mount of claim 1,

every the telescopic link all includes connecting plate, sleeve pipe and interior pole, sheathed tube one end with connecting plate fixed connection, the sheathed tube other end is provided with the recess, the connecting plate with the connection can be dismantled, interior pole with sleeve pipe sliding connection to be located the inside of recess, interior pole is kept away from the one end of recess is provided with the carriage.

3. The patellar claw mount according to claim 2,

every the bulb pole all includes bulb and body of rod, the one end of body of rod with bulb fixed connection, the other end of body of rod is provided with the screw thread, the bulb is located the correspondence first bulb groove with in the second bulb groove, the connecting seat is kept away from the one end of connecting plate is provided with the thread groove, the screw thread with thread groove looks adaptation.

4. The patellar claw mount according to claim 2,

the end of the inner rod, which is far away from the connecting frame, is provided with a limiting plate, the end of the sleeve, which is far away from the connecting plate, is provided with a cover plate, and the limiting plate is matched with the cover plate.

5. The patellar claw mount of claim 1,

6. The patellar claw mount according to claim 5,

one end, far away from the plug, of the plugging block is provided with a clamping block, a clamping groove is formed in the inserting groove, and the clamping block is matched with the clamping groove.