CN220001842U - Patella bone way director - Google Patents
Patella bone way director Download PDFInfo
- Publication number
- CN220001842U CN220001842U CN202322690595.5U CN202322690595U CN220001842U CN 220001842 U CN220001842 U CN 220001842U CN 202322690595 U CN202322690595 U CN 202322690595U CN 220001842 U CN220001842 U CN 220001842U
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- China
- Prior art keywords
- adjusting device
- angle adjusting
- positioning
- shaped
- height adjusting
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- 210000004417 patella Anatomy 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000000806 elastomer Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000013536 elastomeric material Substances 0.000 claims 1
- 210000000988 bone and bone Anatomy 0.000 description 8
- 210000003041 ligament Anatomy 0.000 description 6
- 238000001356 surgical procedure Methods 0.000 description 4
- 210000002435 tendon Anatomy 0.000 description 3
- 208000007534 Patellar Dislocation Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 210000004439 collateral ligament Anatomy 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010023204 Joint dislocation Diseases 0.000 description 1
- 206010034122 Patella fracture Diseases 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000000281 joint capsule Anatomy 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a patella bone path guider, which comprises a circular arc-shaped positioning handle, an angle adjusting device, a height adjusting device and a drill guiding sleeve; the arc-shaped positioning handle is of a semicircular arc-shaped structure, a fixed positioning table and a movable positioning table are respectively arranged at two ends of the arc-shaped positioning handle, an angle adjusting slide way is arranged on one side of the fixed positioning table, an angle adjusting device is arranged on the angle adjusting slide way and can slide on the angle adjusting slide way, a height adjusting device is arranged on the angle adjusting device, and a drill guiding sleeve is detachably arranged on the height adjusting device. The patella channel guide provided by the utility model has the advantages of accurate positioning, convenient use and improvement of operation safety and operation efficiency.
Description
Technical Field
The utility model belongs to the field of medical operation equipment, and particularly relates to a patella channel guide.
Background
The patella dislocation is more clinically seen, and is better developed in teenagers, especially females. The dislocation of the patella may cause injury or insufficiency of medial patellofemoral ligament (MPFL), which is the most important static stabilization structure for maintaining medial stability of the patella, and is the most important soft tissue stabilization structure for resisting the dislocation of the patella on the lateral side and maintaining medial stability. For MPFL victims, simple MPFL repair is insufficient to provide adequate mechanical strength and to obtain good functional results. While reconstructing the medial patellofemoral ligament plays a critical role in successfully treating recurrent patellar dislocation, the autologous popliteal tendon is generally adopted as an implant for the reconstruction of the MPFL.
The patella side is provided with an anchor suture fixing or bone canal fixing method when the MPFL is rebuilt. The anchor nail is fixed by expensive consumable materials, metal remains after operation, tendon-bone interface adhesion heals, and reconstruction ligament looseness can occur under long-time stress; in addition, local tissue weakness and suture knot foreign bodies can cause local prominence discomfort. The patella collateral ligament is reconstructed by the bone canal technology, and the patella collateral ligament is firmly fixed, has good mechanical strength, large tendon bone interface, good biocompatibility and quick healing, and is the most common fixing mode at present.
With the advancement of arthroscopic technology, the reconstruction of MPFL under arthroscope has become more popular, and compared with open surgery, has small incisions with small wounds, fast healing, skin only a few millimeters, and almost no post-operative scar. However, the arthroscopic surgery has high technical difficulty in reconstructing the MPFL, and particularly when preparing the patellar tunnel under the arthroscope, the position and direction of the patellar tunnel can be easily controlled unlike the incision surgery. A beginner or a doctor with unskilled arthroscope operation adopts the prior art, and the palm of the hand or the palm of the hand is positioned under perspective, so that the patella is likely to be beaten too long or too short, the bone canal is too long, the length of the implant is insufficient, and the patella fracture risk exists; too short a bone tunnel can have problems of broken bone tunnels, weak bone tunnels of grafts, and failed surgery. Therefore, there is a great clinical need for an auxiliary tool for guiding and positioning, and accurately preparing a proper patellar approach.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provide the patellar track guide for the arthroscopic patellar dislocation correction operation, which is accurate in positioning and convenient to use.
In order to achieve the above purpose, the technical scheme adopted is as follows:
a patella track guider comprises a circular arc-shaped positioning handle, an angle adjusting device, a height adjusting device and a drill guiding sleeve; the arc-shaped positioning handle is of a semicircular arc-shaped structure, a fixed positioning table and a movable positioning table are respectively arranged at two ends of the arc-shaped positioning handle, an angle adjusting slideway is arranged on one side of the fixed positioning table, and the angle adjusting device is arranged on the angle adjusting slideway and can slide on the angle adjusting slideway to adjust the guiding angle of the bone canal; the height adjusting device is arranged on the angle adjusting device and used for adjusting the height of the bone canal guide; the drill guiding sleeve is detachably arranged on the height adjusting device and used for fixing the direction of the Kirschner wire when drilling.
As another preferable scheme of the utility model, the fixed positioning table consists of a fixed base and a positioning table, and the positioning table is made of an elastomer material so as to improve the firmness of fixation.
As another preferable scheme of the utility model, the movable positioning table consists of a threaded hole base and a threaded positioning rod, wherein the threaded hole base is provided with a threaded through hole, the rod body of the threaded positioning rod is provided with threads, the front end of the threaded positioning rod is provided with a positioning head, the positioning head is made of an elastomer material, and the threaded rod body of the positioning head is enabled to move back and forth in the threaded through hole of the threaded hole base by rotating the threaded positioning rod so as to fix the circular arc-shaped positioning handle.
As another preferable scheme of the utility model, the angle adjusting device consists of a C-shaped sliding seat and a T-shaped fastener, wherein the C-shaped sliding seat is arranged outside the circular arc positioning handle, a threaded through hole is formed in the upper part of the C-shaped sliding seat, threads are arranged in the middle of the T-shaped fastener, the T-shaped fastener is arranged on the threaded through hole of the C-shaped sliding seat, the lower end of the T-shaped fastener is arranged in the angle adjusting slide way, and the C-shaped sliding seat is fixed and unlocked on the angle adjusting slide way through the T-shaped fastener.
As another preferable scheme of the utility model, the angle adjusting device is provided with a height adjusting mounting hole, a limiting block is arranged in the height adjusting mounting hole, the height adjusting device consists of a drill guiding sleeve mounting seat, a height adjusting rod and a reset spring, a sliding groove and a limiting groove which are matched with the limiting block are arranged on the side face of the height adjusting rod, the reset spring is arranged in the height adjusting mounting hole, the height of the drill guiding sleeve mounting seat is adjusted up and down when the sliding groove is rotated to the limiting block, and the height of the drill guiding sleeve mounting seat is locked when the limiting groove is rotated to the limiting block.
As another preferable scheme of the utility model, the circular arc-shaped positioning handle, the angle adjusting device, the height adjusting device and the drill guiding sleeve are all made of stainless steel.
Compared with the prior art, the patellar canal guide device provided by the utility model has the advantages of simple structure, convenience in use, accurate positioning, convenience in disassembly, sliding positioning and loosening functions, and improvement of operation safety and operation efficiency, so that the minimally invasive operation under a total arthroscope for reconstructing the inner patellofemoral ligament is realized, and the incision operation is avoided.
Drawings
Fig. 1 is a schematic plan view of the patella tunnel guide according to the present utility model, fig. 2 is a schematic structural view of the patella tunnel guide according to the present utility model, and fig. 3 is a schematic structural view of an angle adjusting device of the patella tunnel guide according to the present utility model; FIG. 4 is a schematic view of the height adjustment device of the patella tunnel guide of the present utility model; fig. 5 is a schematic view of the combined structure of the angle adjusting device, the height adjusting device and the drill guide sleeve of the patella tunnel guide according to the present utility model.
Wherein: 1-an arc-shaped positioning handle; 11-a fixed base; 12-positioning table; 13-a threaded hole base; 14-a threaded locating rod; 15-positioning heads; 16-angle adjustment slide; 2-an angle adjusting device; a 21-C type slide; 22-T fasteners; 23-height adjustment mounting holes; 24-limiting blocks; 3-height adjusting means; 31-a drill guide sleeve mounting seat; 32-height adjusting rods; 321-a sliding groove; 322-limit groove; 33-a return spring; 4-a drill guiding sleeve.
Detailed Description
For a better understanding of the present utility model, specific embodiments of the utility model are described in further detail below with reference to the drawings.
As shown in fig. 1-5, the patella channel guide comprises a circular arc-shaped positioning handle 1, an angle adjusting device 2, a height adjusting device 3 and a drill guiding sleeve 4; the arc-shaped positioning handle 1 is of a semicircular arc-shaped structure, two ends of the arc-shaped positioning handle are respectively provided with a fixed positioning table and a movable positioning table, the fixed positioning table consists of a fixed base 11 and a positioning table 12, the movable positioning table consists of a threaded hole base 13 and a threaded positioning rod 14, the threaded hole base 13 is provided with a threaded through hole, the rod body of the threaded positioning rod 14 is provided with threads, the front end of the threaded positioning rod is provided with a positioning head 15, and one side of the fixed positioning table is provided with an angle adjusting slide 16; the angle adjusting device 2 consists of a C-shaped sliding seat 21 and a T-shaped fastening piece 22, wherein the C-shaped sliding seat 21 is arranged outside the circular arc-shaped positioning handle 1, a threaded through hole is formed in the upper part of the C-shaped sliding seat, threads are arranged in the middle of the T-shaped fastening piece 22, the T-shaped fastening piece 22 is arranged on the threaded through hole of the C-shaped sliding seat 21, the lower end of the T-shaped fastening piece is arranged in the angle adjusting slide 16 and can slide on the angle adjusting slide 16, the angle adjusting device 2 is further provided with a height adjusting mounting hole 23, and a limiting block 24 is arranged in the height adjusting mounting hole 23; the height adjusting device 3 consists of a drill guiding sleeve mounting seat 31, a height adjusting rod 32 and a reset spring 33, wherein a sliding groove 321 and a limiting groove 322 matched with the limiting block 24 are formed in the side surface of the height adjusting rod 32, and the reset spring 33 is arranged in the height adjusting mounting hole 23; the drill guiding sleeve 4 is detachably arranged on the drill guiding sleeve mounting seat 31; the positioning table 12 and the positioning head 15 are made of elastomer materials, and the circular arc-shaped positioning handle 1, the angle adjusting device 2, the height adjusting device 3 and the drill guiding sleeve 4 are made of stainless steel materials.
When in use, the circular arc positioning handle 1 is placed in an area to be operated, and the positioning head 15 and the positioning table 12 are clamped by adjusting the threaded positioning rod 14, so that the circular arc positioning handle 1 is fixed; then the angle adjusting device 2 slides along the angle adjusting slideway 16 to realize the angle adjustment of the angle adjusting device 2, and the T-shaped fastener 22 is locked after the angle adjusting device 2 is adjusted in place; then the sliding groove 321 of the height adjusting device 3 is rotated to the position of the limiting block 24, the height of the drill guiding sleeve mounting seat 31 is adjusted up and down, the tip of the drill guiding sleeve mounting seat 31 is placed at the upper condyle (the position of the femoral dead center of the patellofemoral ligament in the femur), and the height position of the drill guiding sleeve mounting seat 31 is locked when the limiting groove 322 is rotated to the position of the limiting block 24 after the adjustment is completed; then a 2.0mm Kirschner wire is inserted into the drill guiding sleeve 4, and is propped against the inner edge of the patella along the inner side of the knee joint through the subcutaneous part of the joint capsule, and an electric drill drives the Kirschner wire to drill a patella channel until the Kirschner wire drills the upper surface of the patella; then the drill guiding sleeve 4 is disassembled, then a 4.5mm hollow drill bit is used for drilling a 4.5mm patellar canal along the Kirschner wire, and finally the tendon graft is led into the patellar canal, so that the reconstruction of the inner patellofemoral ligament is realized.
The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.
Claims (6)
1. The patella channel guider is characterized by comprising an arc-shaped positioning handle, an angle adjusting device, a height adjusting device and a drill guiding sleeve;
the arc-shaped positioning handle is of a semicircular arc structure, two ends of the arc-shaped positioning handle are respectively provided with a fixed positioning table and a movable positioning table, one side of the fixed positioning table is provided with an angle adjusting slideway,
the angle adjusting device is arranged on the angle adjusting slideway and can slide on the angle adjusting slideway,
the height adjusting device is arranged on the angle adjusting device,
the drill guiding sleeve is detachably arranged on the height adjusting device.
2. The patellar track guide according to claim 1, wherein the fixed positioning table comprises a fixed base and a positioning table, the positioning table being of an elastomeric material.
3. The patellar track guide according to claim 1, wherein the movable positioning table is composed of a threaded hole base and a threaded positioning rod, the threaded hole base is provided with a threaded through hole, a rod body of the threaded positioning rod is provided with threads, and a positioning head is arranged at the front end and is made of an elastomer material.
4. The patellar track guide according to claim 1, wherein the angle adjusting device is composed of a C-shaped slide and a T-shaped fastener, the C-shaped slide is mounted outside the circular arc positioning handle, a threaded through hole is formed in the upper portion of the C-shaped slide, threads are formed in the middle of the T-shaped fastener, the T-shaped fastener is mounted on the threaded through hole of the C-shaped slide, and the lower end of the T-shaped fastener is disposed in the angle adjusting slide.
5. The patellar canal guide according to claim 1, wherein the angle adjusting device is provided with a height adjusting mounting hole, a stopper is provided in the height adjusting mounting hole, the height adjusting device is composed of a drill bushing mounting seat, a height adjusting rod and a return spring, a sliding groove and a limiting groove which are matched with the stopper are provided on the side surface of the height adjusting rod, and the return spring is provided in the height adjusting mounting hole.
6. The patellar track guide according to claim 1, wherein the circular arc positioning handle, the angle adjusting device, the height adjusting device and the drill guide sleeve are all made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322690595.5U CN220001842U (en) | 2023-10-09 | 2023-10-09 | Patella bone way director |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322690595.5U CN220001842U (en) | 2023-10-09 | 2023-10-09 | Patella bone way director |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220001842U true CN220001842U (en) | 2023-11-14 |
Family
ID=88673559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322690595.5U Active CN220001842U (en) | 2023-10-09 | 2023-10-09 | Patella bone way director |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220001842U (en) |
-
2023
- 2023-10-09 CN CN202322690595.5U patent/CN220001842U/en active Active
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