CN210019484U - Patella tendon attachment device - Google Patents
Patella tendon attachment device Download PDFInfo
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- CN210019484U CN210019484U CN201920101582.0U CN201920101582U CN210019484U CN 210019484 U CN210019484 U CN 210019484U CN 201920101582 U CN201920101582 U CN 201920101582U CN 210019484 U CN210019484 U CN 210019484U
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- patellar tendon
- attacher
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Abstract
The utility model provides a kneecap tendon attacher for fix the kneecap tendon on the shin bone, kneecap tendon attacher includes the clamp plate, and the clamp plate includes first fixed part, second fixed part and holding portion, and first fixed part and second fixed part set up respectively in the both sides of holding portion and homoenergetic connect on the shin bone, all connect under the condition on the shin bone at first fixed part and second fixed part, and the kneecap tendon can be fixed between holding portion and shin bone. The technical scheme of the utility model the problem that screw fixation patellar tendon structural strength is low among the prior art has been solved effectively.
Description
Technical Field
The utility model relates to an orthopedic surgery implants the body field particularly, relates to a patellar tendon attacher.
Background
The patellar tendon is the tendon connecting the patella and the tibia, which plays an extremely important role in the normal activity of the leg. When the patellar tendon is damaged or inflammation occurs, it is called patellar tendonitis. One common injury to the patellar tendon is a tear at the inferior border of the patella, which is also seen with the tibial tubercle at the distal end of the patellar tendon. For fracture of the tibial tubercle tear-off type, a screw is conventionally used to pass through the patellar tendon and is directly fixed on the tibia, the fixing mode has low structural strength, and the risk of loosening or being pulled out exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a kneecap tendon attacher to solve the problem that screw fixation kneecap tendon structural strength is low among the prior art.
In order to realize the above-mentioned purpose, the utility model provides a patellar tendon attacher for fix the patellar tendon on the shin bone, patellar tendon attacher includes the clamp plate, and the clamp plate includes first fixed part, second fixed part and holding portion, and first fixed part and second fixed part set up respectively in the both sides of holding portion and homoenergetic connect on the shin bone, all connect under the circumstances on the shin bone at first fixed part and second fixed part, and the patellar tendon can be fixed between holding portion and shin bone.
Furthermore, a first fixing hole is formed in the first fixing portion, the first fastener can be arranged in the first fixing hole in a penetrating mode, a second fixing hole is formed in the second fixing portion, the second fastener can be arranged in the second fixing hole in a penetrating mode, a third fixing hole is formed in the containing portion, and the third fastener can be arranged in the third fixing hole in a penetrating mode.
Further, the second fixing hole is a long hole, and the second fastening piece can move in the second fixing hole relative to the pressure plate.
Furthermore, the first fixing hole, the second fixing hole and the third fixing hole are all countersunk holes.
Furthermore, a fourth fixing hole for penetrating the fixing rod is further formed in the accommodating portion, so that the fixing rod can penetrate through the accommodating portion and the patellar tendon and fix the patellar tendon on the pressing plate.
Further, the fourth fixing hole is plural.
Further, the patellar tendon attachment further comprises a first porous structure, and the first porous structure is arranged on the surfaces of the first fixing part and the second fixing part, which are in contact with the tibia.
Further, the patellar tendon attachment further comprises a second porous structure disposed on a surface of the receptacle in contact with the patellar tendon.
Further, the surface of the side of the compression plate away from the tibia is a smooth surface.
Further, the accommodating portion protrudes from the first fixing portion and the second fixing portion.
Use the technical scheme of the utility model, under the condition on patient's shin bone was implanted to patellar tendon attacher, the portion of holding set up on the shin bone through first fixed part and second fixed part, the patellar tendon is fixed between portion of holding and shin bone, has increased the area of contact between patellar tendon attacher and the shin bone, has improved stability and the fixed effect of patellar tendon attacher on the shin bone. Kneecap tendon one side and shin bone laminating, the laminating of the portion of holding of opposite side and kneecap tendon attacher is compared with the fixed mode of traditional bone screw simple wearing to establish in the kneecap tendon, and the kneecap tendon attacher of this embodiment can press from both sides the kneecap tendon between holding portion and shin bone, has increased the area of contact between kneecap tendon and the fixed knot structure, provides better fixed effect.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural view of an embodiment of a patellar tendon attacher according to the present invention implanted in a tibia;
fig. 2 shows a schematic structural view of the patellar tendon attacher of fig. 1;
fig. 3 shows a patellar tendon attacher of fig. 2; and
fig. 4 shows a schematic sectional structure view along a-a of fig. 3.
Wherein the figures include the following reference numerals:
10. pressing a plate; 11. a first fixed part; 12. a second fixed part; 13. an accommodating portion; 41. a first fixing hole; 42. a second fixing hole; 43. a third fixing hole; 44. a fourth fixing hole; 51. a first porous structure; 52. a second porous structure; 80. the patellar tendon; 90. the tibia.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The patellar tendon attachment is used for fixing a patellar tendon on a tibia, and as shown in fig. 1 to 4, the patellar tendon attachment of the present embodiment includes a pressing plate 10, the pressing plate 10 includes a first fixing portion 11, a second fixing portion 12 and a receiving portion 13, the first fixing portion 11 and the second fixing portion 12 are respectively disposed on both sides of the receiving portion 13 and can be both connected on the tibia 90, and the patellar tendon 80 can be fixed between the receiving portion 13 and the tibia 90 under the condition that the first fixing portion 11 and the second fixing portion 12 are both connected on the tibia 90.
By applying the technical scheme of the embodiment, under the condition that the patellar tendon attachment is implanted into the tibia 90 of the patient, the accommodating part 13 is arranged on the tibia 90 through the first fixing part 11 and the second fixing part 12, the patellar tendon 80 is fixed between the accommodating part 13 and the tibia 90, the contact area between the patellar tendon attachment and the tibia 90 is increased, and the stability and the fixing effect of the patellar tendon attachment on the tibia 90 are improved. The fixed mode that the patellar tendon attacher was worn to establish in the patellar tendon is simply compared with traditional bone screw to patellar tendon attacher's the laminating of holding portion 13 in one side and the shin bone 90 laminating of patellar tendon 80, opposite side and patellar tendon attacher, and the patellar tendon attacher of this embodiment can press from both sides the patellar tendon between holding portion 13 and shin bone 90, has increased the area of contact between patellar tendon and the fixed knot structure, provides better fixed effect.
Preferably, the surface of the pressing plate 10 on the side away from the tibia 90 is a smooth surface, and the curvature of the smooth surface is gradually changed, so that the discomfort of the patellar tendon attachment in the patient body can be effectively reduced.
As shown in fig. 1, the first fixing portion 11 of the present embodiment is provided with a first fixing hole 41, the second fixing portion 12 is provided with a second fixing hole 42, and the accommodating portion 13 is provided with a third fixing hole 43. Fasteners pass through the first fixing holes 41 and the second fixing holes 42 to fix the patellar tendon attacher on the tibia 90, and the fasteners pass through the third fixing holes 43 and the patellar tendon 80 to further connect and fix the patellar tendon 80 with the patellar tendon attacher and the tibia 90.
Preferably, as shown in fig. 2 and 4, the second fixing hole 42 of the present embodiment is a long hole so that the fastener can move in the second fixing hole 42 relative to the pressure plate 10. Therefore, in the operation process, the position of the patellar tendon attachment is basically fixed by the fastener in the first fixing hole 41, and the position of the fastener in the second fixing hole 42 can be adjusted by the second fixing hole 42 in the long hole structure according to the actual condition in the operation, so that the flexibility is improved.
Preferably, as shown in fig. 3 and 4, the first fixing hole 41, the second fixing hole 42, and the third fixing hole 43 of the present embodiment are all countersunk holes. When the fastener is arranged in the fixing hole, the height of the fastener protruding out of the pressing plate 10 can be reduced, and the discomfort caused by friction between the edge of the fastener and soft tissues around the tibia is reduced.
As shown in fig. 2 to 4, the accommodating portion 13 of the present embodiment is further provided with a fourth fixing hole 44 for passing a fixing rod, so that the fixing rod can transversely pass through the accommodating portion 13 and the patellar tendon 80 and fix the patellar tendon 80 on the pressing plate 10. Compared with the traditional bone screw, the fixing rod arranged in the way increases the contact area between the patellar tendon 80 and the fixing rod, reduces the local pressure and reduces the probability of the reoccurring of the patellar tendon. The stability of being connected between the patellar tendon and the shin bone is further improved through the combined action of the screw, the fixing rod and the clamping and fixing modes. The fourth fixing hole 44 can be penetrated with a fine wire structure such as a suture and the like and can bind the patellar tendon 80 on the pressing plate 10 for fixing.
Preferably, as shown in fig. 4, the accommodating part 13 protrudes from the first fixing part 11 and the second fixing part 12. The above structure facilitates the provision of the fourth fixing hole 44, reducing interference between the fixing rod and the fasteners in the first fixing hole 41 and the second fixing hole 42. It is further preferable that three fourth fixing holes 44 are provided in parallel in the patellar tendon attacher of the present embodiment, further enhancing the fixing effect between the patellar tendon 80 and the patellar tendon attacher.
As shown in fig. 4, the patellar tendon attacher of the present embodiment further includes a first porous structure 51, and the first porous structure 51 is provided on the surfaces of the first and second fixing parts 11 and 12 that contact the tibia. After the patellar tendon attachment of the present embodiment is implanted into the tibia 90, as the healing time increases, the bone material of the tibia 90 can grow into the pores of the first porous structure 51, and the integration of the patellar tendon attachment and the tibia 90 is improved.
The patellar tendon attacher of the present embodiment further includes a second porous structure 52, and the second porous structure 52 is provided on a surface of the accommodating portion 13 in contact with the patellar tendon 80. Similar to the effect of the first porous structure 51, the patellar tendon 80 can grow into the pores of the second porous structure 52, improving the integration between the patellar tendon attacher and the patellar tendon.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
under the condition on patient's shin bone is implanted to patellar tendon attacher, the portion of holding sets up on the shin bone through first fixed part and second fixed part, and the patellar tendon is fixed between portion of holding and shin bone, has increased the area of contact between patellar tendon attacher and the shin bone, has improved stability and the fixed effect of patellar tendon attacher on the shin bone. Kneecap tendon one side and shin bone laminating, the laminating of the portion of holding of opposite side and kneecap tendon attacher is compared with the fixed mode of traditional bone screw simple wearing to establish in the kneecap tendon, and the kneecap tendon attacher of this embodiment can press from both sides the kneecap tendon between holding portion and shin bone, has increased the area of contact between kneecap tendon and the fixed knot structure, provides better fixed effect.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a patellar tendon attacher for fix the patellar tendon on the shin bone, its characterized in that, patellar tendon attacher includes clamp plate (10), clamp plate (10) include first fixed part (11), second fixed part (12) and portion of holding (13), first fixed part (11) with second fixed part (12) set up respectively the both sides of portion of holding (13) and all can connect on the shin bone first fixed part (11) with second fixed part (12) all connect under the condition on the shin bone, the patellar tendon can fix portion of holding (13) with between the shin bone.
2. The patellar tendon attacher according to claim 1, wherein the first fixing portion (11) is provided with a first fixing hole (41), a first fastener is capable of being inserted into the first fixing hole (41), the second fixing portion (12) is provided with a second fixing hole (42), a second fastener is capable of being inserted into the second fixing hole (42), and the receiving portion (13) is provided with a third fixing hole (43), and a third fastener is capable of being inserted into the third fixing hole (43).
3. The patellar tendon attacher according to claim 2, wherein the second securing hole (42) is an elongated hole, the second fastener being movable in the second securing hole (42) relative to the pressure plate (10).
4. The patellar tendon attacher according to claim 2, wherein the first fixation hole (41), the second fixation hole (42), and the third fixation hole (43) are all counter-sunk holes.
5. The patellar tendon attacher according to claim 1, wherein a fourth fixing hole (44) for passing a fixing rod is further provided on the receptacle (13) so that the fixing rod can pass through the receptacle (13) and the patellar tendon and fix the patellar tendon on the pressure plate (10).
6. The patellar tendon attacher according to claim 5, wherein the fourth fixing hole (44) is plural.
7. The patellar tendon inserter according to claim 1, further comprising a first porous structure (51), wherein the first porous structure (51) is disposed on the surface of the first fixation portion (11) and the second fixation portion (12) contacting the tibia.
8. The patellar tendon attacher according to claim 1, further comprising a second porous structure (52), the second porous structure (52) being disposed on a surface of the receptacle (13) in contact with the patellar tendon.
9. The patellar tendon attacher according to claim 1, wherein a surface of a side of the pressure plate (10) distal from the tibia is a smooth surface.
10. The patellar tendon attacher according to claim 1, wherein the receiving portion (13) protrudes from the first securing portion (11) and the second securing portion (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920101582.0U CN210019484U (en) | 2019-01-21 | 2019-01-21 | Patella tendon attachment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920101582.0U CN210019484U (en) | 2019-01-21 | 2019-01-21 | Patella tendon attachment device |
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| Publication Number | Publication Date |
|---|---|
| CN210019484U true CN210019484U (en) | 2020-02-07 |
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| CN201920101582.0U Active CN210019484U (en) | 2019-01-21 | 2019-01-21 | Patella tendon attachment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109567888A (en) * | 2019-01-21 | 2019-04-05 | 北京爱康宜诚医疗器材有限公司 | Kneecap tendon hapteron |
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2019
- 2019-01-21 CN CN201920101582.0U patent/CN210019484U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109567888A (en) * | 2019-01-21 | 2019-04-05 | 北京爱康宜诚医疗器材有限公司 | Kneecap tendon hapteron |
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