CN215306651U - Navigation device for accurate positioning and embedding of kirschner wire for patella fracture - Google Patents
Navigation device for accurate positioning and embedding of kirschner wire for patella fracture Download PDFInfo
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- CN215306651U CN215306651U CN202120600338.6U CN202120600338U CN215306651U CN 215306651 U CN215306651 U CN 215306651U CN 202120600338 U CN202120600338 U CN 202120600338U CN 215306651 U CN215306651 U CN 215306651U
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- patella
- locator
- navigation device
- wire
- connecting rod
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- 206010034122 Patella fracture Diseases 0.000 title claims description 6
- 210000004417 patella Anatomy 0.000 claims abstract description 43
- 206010017076 Fracture Diseases 0.000 claims description 20
- 239000007943 implant Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 5
- 210000000629 knee joint Anatomy 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000002594 fluoroscopy Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000000426 patellar ligament Anatomy 0.000 description 3
- 210000003314 quadriceps muscle Anatomy 0.000 description 3
- 210000002435 tendon Anatomy 0.000 description 3
- 208000010392 Bone Fractures Diseases 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000001132 Osteoporosis Diseases 0.000 description 1
- 206010049514 Traumatic fracture Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 206010033675 panniculitis Diseases 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000004304 subcutaneous tissue Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a navigation device for accurate positioning and implanting of a kirschner wire for patellar fracture, which can solve the problem that the kirschner wire is difficult to accurately position and implant in the prior art and belongs to the technical field of medical instruments. The patella locating device comprises a proximal patella locator, a distal patella locator and a locating sleeve, wherein the proximal patella locator is provided with a 90-degree hook, a locating hole and a connecting rod. The distal patella positioner is provided with a 90-degree hook, an adjusting column, a connecting groove and a fixing bolt; the adjusting column is arranged in a hollow manner; the fixing bolt is used for fixing the connecting groove and the connecting rod. The positioning sleeve is arranged in a hollow mode. The utility model can realize accurate positioning, the kirschner wires are driven into the positioning sleeve once, two kirschner wires can be ensured to be in the same plane and be parallel to each other, the direction and the position of the kirschner wires can be prevented from being adjusted by multiple times of perspective, the operation difficulty caused by the positioning of the kirschner wires can be effectively reduced, the operation is simple, the operation can be widely carried out in any hospital, and the popularization is easy.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a navigation device for accurately positioning and implanting a kirschner wire for patellar fracture.
Background
The patella is the largest seed bone of the human body, participates in the composition of the knee joint, and plays an important role in the extension and flexion of the knee joint. The incidence of patellar fracture is about 1% of the total fracture, and traumatic fractures are common. The patella and the femoral trochlear have concave-convex matching relationship, so the patella fracture is mainly treated by surgery to recover the patella joint surface. At present, more surgical treatment methods are clinically used, such as a steel wire tension belt technology; a kirschner wire tension band technique; hollow screw steel wire tension band technology; absorbable screw technology; arthroscopy lower fixation technology and the like, generally speaking, the kirschner wire combined tension band steel wire inner fixation technology is still the technology which most accords with biomechanics and is most widely applied clinically.
In the operation process, the implantation of two kirschner wires which are in the same plane and are parallel to each other is the key point of the operation and is also a difficult point, the current clinical work mainly depends on multiple times of fluoroscopy in the operation and the experience of an operator, the position of the knee joint needs to be repeatedly placed, the passing in and out directions of the kirschner wires are adjusted for multiple times under the fluoroscopy, and various complications in and after the operation are often accompanied, such as long operation time, secondary displacement of temporarily reset patella, traditional Chinese medicine induced fracture, infection and the like in the operation. Especially for the elderly with osteoporosis, the direction of the kirschner wire is adjusted for many times during the operation, which easily causes the bone destruction, leads the fracture to be fixed infirm and loses the function of the tension band, thereby causing the serious consequence of the fixation failure after the early functional exercise.
In view of the problems in the prior art, the accurate positioning work of the kirschner wire in the operation has obvious advantages in the patella fracture operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems in the prior art, and provides a navigation device for accurately positioning and implanting a kirschner wire for patellar fracture. In order to achieve the purpose, the utility model adopts the following technical scheme:
a navigation device for accurate positioning and embedding of a Kirschner wire for patellar fracture comprises a proximal patella positioner, a distal patella positioner and a positioning sleeve. The proximal end patella locator is the setting of opening rectangle, proximal end patella locator one end is provided with near-end 90 degrees crotch, near-end 90 degrees crotch and the complete laminating of near-end patella articular surface, 8mm departments are connected with the locating hole in near-end 90 degrees crotch top, the locating hole is the position that the ke shi needle goes out the patella near-end. The connecting rod is arranged at the other end of the proximal patella positioner, the connecting rod is correspondingly matched with the connecting groove of the distal patella positioner, and the connecting rod and the connecting groove are fixed through a fixing bolt. The distal patella positioner is provided with a distal 90-degree hook, an adjusting column, a connecting groove and a fixing bolt. One end of the distal patella positioner is also provided with a distal 90-degree hook, the distal 90-degree hook is completely attached to the distal patella articular surface, and a position 6mm above the distal 90-degree hook is connected with an adjusting column which is connected with the connecting groove; the locating sleeve is inserted into the adjusting column of the patellar locator at the far end and is contacted with the lower pole of the patella.
Further, the proximal 90-degree hook is 20mm in length.
Further, the length of the distal 90-degree hook is 30 mm.
Furthermore, the adjusting column is arranged in a hollow mode, the diameter of the hollow hole is 4mm, and the length of the adjusting column is 20 mm.
Furthermore, the length of the positioning sleeve is 40mm, and the diameter of the hollow hole is 2.5 mm.
Further, the adjusting column is matched with the positioning sleeve.
Further, the fixing bolt is used for fixing the connecting rod and the connecting groove.
Compared with the prior art, the utility model provides a navigation device for accurately positioning and implanting the kirschner wire for patellar fracture, which has the following beneficial effects:
the utility model is to be used for innovatively improving the difficulty in the existing operation and simultaneously increasing the actual using effect.
The device has the advantages of simple and reasonable structure, convenient use, and capability of accurately and quickly determining the specific position and the orientation of the Kirschner wire and avoiding multiple adjustment and unnecessary perspective of the Kirschner wire. Through setting up the 90 degrees crotch at far and near both ends, ensure that k-wire and patella articular surface are parallel, can avoid the risk that k-wire penetrates the joint completely. The utility model can be adapted to the patella of various sizes by the concave-convex matching sliding connection of the connecting rod and the connecting groove. The Kirschner wire is positioned according to the positions of the adjusting column and the positioning sleeve, so that the maximization of the function of the tension belt can be realized, and the early function exercise can be facilitated. The utility model can realize accurate positioning, and the kirschner wires are driven into the positioning sleeve once along the positioning sleeve, so that two kirschner wires are ensured to be positioned on the same plane and parallel to each other, the fracture is fixed stably and firmly, the direction of the kirschner wires can be prevented from being adjusted by multiple times of perspective, the complications during and after operation can be effectively reduced, and the rehabilitation function exercise can be performed as early as possible. The operation is simple, the apparatus can be repeatedly applied, the cost is low, and the operation can be widely developed and popularized in most hospitals.
Drawings
Fig. 1 is a schematic structural diagram of the whole navigation device for accurately positioning and placing the kirschner wire for patellar fracture according to the present invention.
In the drawings: 1. a proximal 90 degree hook; 2. positioning holes; 3. a connecting rod; 4. a distal 90 degree hook; 5. an adjustment column; 6. connecting grooves; 7. fixing the bolt; 8. and (5) positioning the sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and are not to be taken as limitations of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a navigation device for accurate positioning and placement of kirschner wires for patellar fracture comprises a proximal patella positioner, a distal patella positioner and a positioning sleeve, wherein the proximal patella positioner comprises a proximal 90-degree hook (1), a positioning hole (2) and a connecting rod (3), and the distal patella positioner comprises a distal 90-degree hook (4), an adjusting column (5), a connecting groove (6) and a fixing bolt (7). The utility model discloses a knee joint adjusting device, including adjusting post, near-end patella locator, the direction of adjusting the post is buckled, and the other end is provided with the connecting rod, and near-end 90 degrees crotch (1) is connected with connecting rod (3) through locating hole (2). Distal end patella locator one end also is provided with distal end 90 degrees crotch (4), and distal end 90 degrees crotch (4) are connected with regulation post (5), adjust post (5) and distal end 90 degrees crotch (4) along the direction setting of the proximal end 90 degrees crotch (1) other end, distal end 90 degrees crotch (4) through adjust post (5) with spread groove (6) are connected. Meanwhile, the adjusting column (5) is arranged in a hollow mode, and the connecting rod (3) is fixed on the connecting groove (6) through the fixing bolt (7). Meanwhile, the positioning sleeve (8) is inserted into the adjusting column (5) and is contacted with the lower pole of the patella. In the utility model, when in use, the maximum length of the longitudinal axis of the patella is known in advance to determine the fixing position of the fixing bolt (7). The patient takes the supine position, the affected knee is flexed by 30 degrees, the periphery of the knee joint is disinfected, a sterile towel is laid, the skin and subcutaneous tissues are cut conventionally, the patellar tendon and the quadriceps femoris tendon are exposed, the patellar fracture is reset, after the large-piece forceps are temporarily fixed, the patellar tendon and the quadriceps femoris tendon are respectively split longitudinally at the inner third and the outer third of the patella by 10mm, the proximal 90-degree hook (1) is inserted and attached to the proximal patellar articular surface along the incision of the lateral quadriceps femoris tendon, and the distal 90-degree hook (4) is inserted and attached to the distal patellar articular surface along the incision of the lateral patellar tendon. The connecting rod (3) is fixed on the connecting groove (6) through the fixing bolt (7) (the fixing position of the fixing bolt (7) is known), and the connecting rod is pulled upwards to ensure that two 90-degree hooks are attached to the patellar articular surface. The positioning sleeve (8) is inserted into the adjusting column (5), the tail end of the positioning sleeve (8) is in contact with the lower pole of the patella, the Kirschner wire is driven into the positioning sleeve (8) along the direction, and the Kirschner wire penetrates out of the proximal end of the patella and enters the positioning hole (2). And (3) loosening the fixing bolt (7) next step, disassembling the connecting rod (3), in the same way, accurately driving the fixing bolt into the inner kirschner wire according to the steps, confirming that the patella fracture is reset and the inner fixing position is good under X-ray fluoroscopy after the 8-shaped steel wires are crossed, and suturing the wound with sterile dressing to wrap the steel wires, so that the operation is finished. The utility model realizes accurate positioning, and the kirschner wires are driven into the positioning sleeve once along the positioning sleeve, so that two kirschner wires are ensured to be positioned on the same plane and parallel to each other, the fracture is fixed stably and firmly, the position of the kirschner wires can be prevented from being adjusted by multiple times of perspective, the complications during and after the operation can be effectively reduced, and the early rehabilitation of patients is facilitated. The operation is simple, the apparatus can be repeatedly applied, the cost is low, and the method can be widely developed and popularized in most hospitals.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the spirit and scope of the utility model, and any modifications, equivalents, improvements and the like made within the spirit and scope of the utility model shall be included in the scope of the utility model.
Claims (8)
1. The utility model provides a navigation head that is used for accurate location of ke shi needle of patella fracture to put into which characterized in that: including near-end patella locator, distal end patella locator and position sleeve, near-end patella locator one end is provided with 90 degrees crotch, is the orientation the direction of adjusting the post is buckled, and the other end is provided with the connecting rod, distal end patella locator one end also is provided with 90 degrees crotch, and the crotch is connected with adjust the post, adjust the post and the direction setting of the crotch along the 90 degrees crotch other ends of near-end patella locator, simultaneously, it is the cavity setting to adjust the post, near-end patella locator connecting rod passes through fixing bolt fixes on the distal end patella locator spread groove.
2. The navigation device for the precise positioning placement of the kirschner wire for patellar fracture according to claim 1, characterized in that the proximal patella locator comprises a proximal 90-degree hook (1), a locating hole (2), and a connecting rod (3), the 90-degree hook (1) being connected with the connecting rod (3) through the locating hole (2).
3. The navigation device for precise positional placement of a k-wire for patellar fracture according to claim 1, wherein: the distal end patella locator comprises a distal end 90-degree hook (4), an adjusting column (5), a connecting groove (6) and a fixing bolt (7), wherein the distal end 90-degree hook (4) is connected with the connecting groove (6) through the adjusting column (5).
4. The navigation device for precise positional placement of a k-wire for patellar fracture according to claim 1, wherein: the connecting rod (3) and the connecting groove (6) are fixed by the fixing bolt (7).
5. The navigation device for precise positional placement of a k-wire for patellar fracture according to claim 1, wherein: the hollow aperture range of the positioning sleeve (8) is 2.5 mm.
6. The navigation device for precise positional placement of a k-wire for patellar fracture according to claim 2, wherein: the length range of the proximal 90-degree hook (1) is 20 mm.
7. The navigation device for precise positional placement of a k-wire for patellar fracture according to claim 3, wherein: the length range of the far-end 90-degree hook (4) is 30 mm.
8. The navigation device for precise positional placement of a k-wire for patellar fracture according to claim 3, wherein: the hollow aperture range of the adjusting column (5) is 4mm, and the positioning sleeve (8) is inserted into the adjusting column (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120600338.6U CN215306651U (en) | 2021-03-18 | 2021-03-18 | Navigation device for accurate positioning and embedding of kirschner wire for patella fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120600338.6U CN215306651U (en) | 2021-03-18 | 2021-03-18 | Navigation device for accurate positioning and embedding of kirschner wire for patella fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215306651U true CN215306651U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120600338.6U Expired - Fee Related CN215306651U (en) | 2021-03-18 | 2021-03-18 | Navigation device for accurate positioning and embedding of kirschner wire for patella fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215306651U (en) |
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2021
- 2021-03-18 CN CN202120600338.6U patent/CN215306651U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211228 |