CN210138182U - Three-jaw bone holder for orthopedic surgery - Google Patents
Three-jaw bone holder for orthopedic surgery Download PDFInfo
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- CN210138182U CN210138182U CN201920334499.8U CN201920334499U CN210138182U CN 210138182 U CN210138182 U CN 210138182U CN 201920334499 U CN201920334499 U CN 201920334499U CN 210138182 U CN210138182 U CN 210138182U
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- clamping jaw
- main holding
- holding rod
- rod
- jaw
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Abstract
The utility model relates to an orthopedic surgery apparatus field, specifically relates to a three-jaw bone holder for orthopedic surgery, including main holding rod and interior slide bar, the main holding rod is outside including tubular structure and cover are established, interior slide bar setting inside main holding rod and with the inner wall sliding connection of main holding rod, the length of interior slide bar is less than the length of main holding rod, the one end of main holding rod is provided with first gripper jaw and the second gripper jaw of mutual symmetry, the one end that interior slide bar is close to first gripper jaw and second gripper jaw is equipped with the extension, be equipped with the sliding block on the extension, be equipped with movable clamping jaw on the sliding block, the other end of interior slide bar is equipped with the regulation part, be provided with adjusting part in the regulation part. The main holding rod is held by a hand, the first clamping jaw and the second clamping jaw are placed on one side of a bone to be fixed, the movable clamping jaw is located on the other side of the fixed bone, the adjusting assembly is operated, and the movable clamping jaw is pushed to be close to the first clamping jaw and the second clamping jaw until the bone is clamped.
Description
Technical Field
The utility model relates to an orthopedic surgery apparatus field specifically relates to an orthopedic surgery is with three-jaw bone holder.
Background
Orthopedics is one of the most common departments in all hospitals, and mainly studies the anatomy, physiology and pathology of the skeletal muscle system, and maintains and develops the normal form and function of the system by using medicines, operations and physical methods. With the change of times and society, the orthopedic injury spectrum has obvious changes, for example, diseases such as osteoarticular tuberculosis, osteomyelitis, poliomyelitis and the like are obviously reduced, and the injuries caused by traffic accidents are obviously increased. When an orthopedic patient is treated by a surgery, an instrument of a bone holder is often used for assistance.
The bone holder is a medical appliance, also called bone forceps or bone holder. The bone holder is used for clamping the fracture end, helping fracture reduction and keeping the position after reduction so as to carry out internal fixation. There are two forms of bone forceps and bone clamps. The bone holder that uses at present can not calibrate the centre gripping interval according to different state of illness well, and takes place the dislocation easily, in case the centre gripping is unstable, then can aggravate patient's pain, injure the bone even, in order can fix fracture end centre gripping fast high-efficiently, realize accurate location, help the restoration of skeleton, under this kind of condition, it is necessary to improve the bone holder, makes things convenient for actual orthopedic surgery to use.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a three-jaw bone holder for orthopedic surgery.
The utility model discloses a three-jaw bone holder for orthopedic surgery, including main holding rod and interior slide bar, the slide bar outside including the main holding rod is established for tubular structure and cover, interior slide bar setting inside main holding rod and with the inner wall sliding connection of main holding rod, the length of interior slide bar is less than the length of main holding rod, the one end of main holding rod is provided with first gripper jaw and the second gripper jaw of mutual symmetry, first gripper jaw and second gripper jaw and main holding rod integrated into one piece, interior slide bar setting is kept away from to first gripper jaw and second gripper jaw, the one end that interior slide bar is close to first gripper jaw and second gripper jaw is provided with the extension, be provided with the slide block on the extension, be provided with movable clamping jaw on the slide block, the other end of interior slide bar is provided with the adjustment part, be provided with adjusting part on the adjustment part.
Furthermore, the first clamping jaw and the second clamping jaw are arranged opposite to the movable clamping jaw, and arc-shaped jaw-shaped structures are arranged on the opposite surfaces of the first clamping jaw, the second clamping jaw and the movable clamping jaw.
Furthermore, the extension part and the inner slide rod are coaxially arranged, the inner diameter of the extension part is smaller than that of the inner slide rod, a reset buffer spring is arranged between the extension part and the main holding rod, one end of the reset buffer spring is fixedly connected with the main holding rod, and the other end of the reset buffer spring is fixedly connected with the inner slide rod.
Furthermore, a sliding groove is formed in the main holding rod and located above the extending portion, a dovetail groove is formed in the sliding groove, the sliding block is located in the dovetail groove and in sliding fit with the dovetail groove, and the movable clamping jaw penetrates through the sliding groove and is arranged upwards.
Furthermore, an end cover is arranged at one end, far away from the first clamping jaw and the second clamping jaw, of the main holding rod, and the end cover is in threaded connection with the main holding rod.
Furthermore, the structure of the adjusting part is a half of the inner sliding rod after being cut along the axial direction, the upper surface of the adjusting part is a rectangular cross section, and the lower surface of the adjusting part is in an arc-tube shape and is in sliding fit with the inner wall of the main holding rod.
Further, the adjusting part includes adjusting knob, transfer line, adjusting gear and movable rack, the fixed upper surface that sets up the regulating part of movable rack, adjusting gear sets up in movable rack top and meshes with movable rack mutually, the transfer line is fixed to be set up in adjusting gear's axis department and one end is connected with the inner wall of main holding rod, and the other end of transfer line passes main holding rod, and adjusting knob is fixed to be set up on the other end of transfer line and is located the outside of main holding rod.
Furthermore, limiting plates are arranged at two ends of the movable rack, the adjusting gear is arranged between the two limiting plates, and the periphery of the adjusting knob is provided with an anti-friction tooth-shaped structure.
Has the advantages that: the utility model is used for carry out the centre gripping to the skeleton of patient's fracture department among the bone surgery, help the restoration of fracture end, also make the wound fixed, make things convenient for operation and treatment. Compared with the traditional tool, the three-jaw structure is firmer when the skeleton is fixed, and is beneficial to accurate reduction of the fracture end; the adjusting gear of the adjusting assembly is meshed with the movable rack, so that the position of the movable clamping jaw is adjusted more accurately, the controllable degree of the distance between the movable clamping jaw and the first clamping jaw and the distance between the movable clamping jaw and the second clamping jaw are high, the adjustment can be conveniently carried out according to bones of different patients and different wounds, and the applicability is wide; the adjusting mode is simple, the operation is convenient, the bone can be fixed quickly and efficiently, the pain of the patient is relieved, and the patient is protected from secondary injury in the operation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a front view of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a side view of the present invention;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;
fig. 6 is a schematic view of the structure of the present invention;
FIG. 7 is an enlarged schematic view at C of FIG. 6;
fig. 8 is a schematic view of the present invention showing a partial structure;
FIG. 9 is an enlarged schematic view at D of FIG. 8;
description of reference numerals: the clamping device comprises a main holding rod 1, a sliding groove 1a, a dovetail groove 1a1, an end cover 1b, a first clamping claw 2, a second clamping claw 3, an inner sliding rod 4, a protruding part 4a, an adjusting part 4b, a sliding block 4c, a movable clamping jaw 4d, a reset buffer spring 4e, an adjusting component 5, an adjusting knob 5a, a transmission rod 5b, an adjusting gear 5c, a movable rack 5d and a limiting plate 5d 1.
Detailed Description
In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 9, the three-jaw bone holder for orthopedic surgery comprises a main holding rod 1 and an inner sliding rod 4, wherein the main holding rod 1 is of a tubular structure and is sleeved outside the inner sliding rod 4, the inner sliding rod 4 is arranged inside the main holding rod 1 and is slidably connected with the inner wall of the main holding rod 1, the length of the inner sliding rod 4 is smaller than that of the main holding rod 1, one end of the main holding rod 1 is provided with a first clamping jaw 2 and a second clamping jaw 3 which are symmetrical to each other, the first clamping jaw 2 and the second clamping jaw 3 are integrally formed with the main holding rod 1, the first clamping jaw 2 and the second clamping jaw 3 are arranged away from the inner sliding rod 4, one end of the inner sliding rod 4, which is close to the first clamping jaw 2 and the second clamping jaw 3, is provided with an extension part 4a, the extension part 4a is provided with a sliding block 4c, the sliding block 4c is provided with a movable clamping jaw 4d, the other end of the inner sliding rod 4 is provided with an adjustment part 4b, the adjusting part 4b is provided with an adjusting component 5. The utility model can be used for fixing the injured bone of the fracture patient, facilitating the operation and treatment, helping the fracture reduction, etc. The specific use method is that a medical worker holds the main holding rod 1 by hand, places the first holding jaw 2 and the second holding jaw 3 on one side of a bone to be fixed, and at the moment, the movable holding jaw 4d is positioned on the other side of the fixed bone, according to the actual condition of the wound of a patient, the position of the bone, the size and the diameter of the bone and the like, operates the adjusting component 5, rotates the adjusting knob 5a through fingers, the adjusting knob 5a drives the adjusting gear 5c to rotate through the transmission rod 5b, and further drives the movable rack 5d to move forwards through the adjusting gear 5c, so that the adjusting part 4b slides in the main holding rod 1, the inner slide rod 4 moves towards the first holding jaw 2 and the second holding jaw 3, further the extending part 4a moves forwards, the slide block 4c slides in the dovetail groove 1a1 in the slide groove 1a, and the movable holding jaw 4d is pushed to approach the first holding jaw 2 and the second holding jaw 3, until the bone is clamped. After use, the adjusting knob 5a is rotated, and the movable clamping jaw 4d, the first clamping jaw 2 and the second clamping jaw 3 are separated from each other through the transmission mode, so that the device is taken down from the bone.
The first clamping jaw 2, the second clamping jaw 3 and the movable clamping jaw 4d are arranged oppositely, and the opposite surfaces of the first clamping jaw 2, the second clamping jaw 3 and the movable clamping jaw 4d are of arc-shaped jaw structures. First gripper jaw 2, second gripper jaw 3 and activity gripper jaw 4d cooperate each other to fix patient's skeleton centre gripping, and the cooperation of three-jaw is better than traditional equipment to the fixed efficiency of fracture department, and is more stable firm, helps going on of operation, reduces patient's the degree of pain and has avoided the secondary injury of treatment in-process.
The extension portion 4a and the inner slide rod 4 are coaxially arranged, the inner diameter of the extension portion 4a is smaller than that of the inner slide rod 4, a reset buffer spring 4e is arranged between the extension portion 4a and the main holding rod 1, one end of the reset buffer spring 4e is fixedly connected with the main holding rod 1, and the other end of the reset buffer spring 4e is fixedly connected with the inner slide rod 4. When the adjusting component 5 adjusts the position of the inner sliding rod 4, the reset buffer spring 4e plays a role in buffering, and is beneficial to accurate positioning.
The main holding rod 1 is provided with a sliding groove 1a, the sliding groove 1a is positioned above the extension part 4a, a dovetail groove 1a1 is arranged in the sliding groove 1a, the sliding block 4c is positioned in the dovetail groove 1a1 and is in sliding fit with the dovetail groove 1a1, and the movable clamping jaw 4d penetrates through the sliding groove 1a and is arranged upwards. The sliding block 4c slides back and forth in the dovetail groove 1a1 along with the extending part 4a, and further drives the movable clamping jaw 4d to move, so that the connection and matching between the dovetail groove 1a1 and the sliding block 4c are firmer, and the structure is stable.
An end cover 1b is arranged at one end, far away from the first clamping claw 2 and the second clamping claw 3, of the main holding rod 1, and the end cover 1b is in threaded connection with the main holding rod 1. The end cover 1b plays a role in sealing and fixing the main holding rod 1, the end cover 1b can be screwed off, and the interior of the main holding rod 1 can be cleaned and maintained.
The structure of the adjusting part 4b is half of the inner slide rod 4 after being cut along the axial direction, the upper surface of the adjusting part 4b is a rectangular section, and the lower surface of the adjusting part 4b is in a circular arc tube shape and is in sliding fit with the inner wall of the main holding rod 1. The adjusting part 4b moves back and forth under the driving of the adjusting component 5, and then the inner sliding rod 4 is pushed and pulled to be close to and far away from the first clamping jaw 2 and the second clamping jaw 3.
The adjusting assembly 5 comprises an adjusting knob 5a, a transmission rod 5b, an adjusting gear 5c and a movable rack 5d, wherein the movable rack 5d is fixedly arranged on the upper surface of the adjusting portion 4b, the adjusting gear 5c is arranged above the movable rack 5d and meshed with the movable rack 5d, the transmission rod 5b is fixedly arranged at the middle shaft of the adjusting gear 5c, one end of the transmission rod is connected with the inner wall of the main holding rod 1, the other end of the transmission rod 5b penetrates through the main holding rod 1, and the adjusting knob 5a is fixedly arranged at the other end of the transmission rod 5b and is positioned outside the main holding rod 1. Because the meshing cooperation of adjusting gear 5c and movable rack 5d for adjust the location very meticulous accuracy, the fixed scope width of convenient control centre gripping, the patient's of laminating actual conditions that can be better, extensive applicability is extensive, can clip the fracture end at different positions.
Limiting plates 5d1 are arranged at two ends of the movable rack 5d, the adjusting gear 5c is arranged between the two limiting plates 5d1, and an anti-friction tooth-shaped structure is arranged on the periphery of the adjusting knob 5 a. The limiting plate 5d1 plays a limiting role in the adjusting gear 5c, the adjusting gear 5c is guaranteed not to slide and dislocate, and the anti-friction tooth-shaped structure of the adjusting knob 5a facilitates the fingers to roll. After the bone fracture fixing device is used proficiently, the main holding rod 1 is held by a hand and then placed at the fracture part of a patient to be positioned, the adjusting knob 5a is stirred by one finger, the fixation of the fracture end part can be completed, the operation is simple, the speed and the efficiency are high, and the bone fracture fixing device is beneficial to the implementation of bone surgery.
The working principle is as follows: the utility model can be used for fixing the injured bone of the fracture patient, facilitating the operation and treatment, helping the fracture reduction, etc. The specific use method is that a medical worker holds the main holding rod 1 by hand, places the first holding jaw 2 and the second holding jaw 3 on one side of a bone to be fixed, and at the moment, the movable holding jaw 4d is positioned on the other side of the fixed bone, according to the actual condition of the wound of a patient, the position of the bone, the size and the diameter of the bone and the like, operates the adjusting component 5, rotates the adjusting knob 5a through fingers, the adjusting knob 5a drives the adjusting gear 5c to rotate through the transmission rod 5b, and further drives the movable rack 5d to move forwards through the adjusting gear 5c, so that the adjusting part 4b slides in the main holding rod 1, the inner slide rod 4 moves towards the first holding jaw 2 and the second holding jaw 3, further the extending part 4a moves forwards, the slide block 4c slides in the dovetail groove 1a1 in the slide groove 1a, and the movable holding jaw 4d is pushed to approach the first holding jaw 2 and the second holding jaw 3, until the bone is clamped. After use, the adjusting knob 5a is rotated, and the movable clamping jaw 4d, the first clamping jaw 2 and the second clamping jaw 3 are separated from each other through the transmission mode, so that the device is taken down from the bone.
First gripper jaw 2, second gripper jaw 3 and activity gripper jaw 4d cooperate each other to fix patient's skeleton centre gripping, and the cooperation of three-jaw is better than traditional equipment to the fixed efficiency of fracture department, and is more stable firm, helps going on of operation, reduces patient's the degree of pain and has avoided the secondary injury of treatment in-process.
When the adjusting component 5 adjusts the position of the inner sliding rod 4, the reset buffer spring 4e plays a role in buffering, and is beneficial to accurate positioning. The sliding block 4c slides back and forth in the dovetail groove 1a1 along with the extending part 4a, and further drives the movable clamping jaw 4d to move, so that the connection and matching between the dovetail groove 1a1 and the sliding block 4c are firmer, and the structure is stable. The end cover 1b plays a role in sealing and fixing the main holding rod 1, the end cover 1b can be screwed off, and the interior of the main holding rod 1 can be cleaned and maintained.
Because the meshing cooperation of adjusting gear 5c and movable rack 5d for adjust the location very meticulous accuracy, the fixed scope width of convenient control centre gripping, the patient's of laminating actual conditions that can be better, extensive applicability is extensive, can clip the fracture end at different positions.
The limiting plate 5d1 plays a limiting role in the adjusting gear 5c, the adjusting gear 5c is guaranteed not to slide and dislocate, and the anti-friction tooth-shaped structure of the adjusting knob 5a facilitates the fingers to roll. After the bone fracture fixing device is used proficiently, the main holding rod 1 is held by a hand and then placed at the fracture part of a patient to be positioned, the adjusting knob 5a is stirred by one finger, the fixation of the fracture end part can be completed, the operation is simple, the speed and the efficiency are high, and the bone fracture fixing device is beneficial to the implementation of bone surgery.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (8)
1. A three-jaw bone holder for orthopedic surgery is characterized in that: the clamping device comprises a main holding rod (1) and an inner sliding rod (4), wherein the main holding rod (1) is of a tubular structure and is sleeved outside the inner sliding rod (4), the inner sliding rod (4) is arranged inside the main holding rod (1) and is in sliding connection with the inner wall of the main holding rod (1), the length of the inner sliding rod (4) is smaller than that of the main holding rod (1), a first clamping jaw (2) and a second clamping jaw (3) which are symmetrical to each other are arranged at one end of the main holding rod (1), the first clamping jaw (2) and the second clamping jaw (3) are integrally formed with the main holding rod (1), the first clamping jaw (2) and the second clamping jaw (3) are far away from the inner sliding rod (4), an extension part (4 a) is arranged at one end, close to the first clamping jaw (2) and the second clamping jaw (3), of the inner sliding rod (4), and a sliding block (4 c) is arranged on the extension part (4 a), the sliding block (4 c) is provided with a movable clamping jaw (4 d), the other end of the inner sliding rod (4) is provided with an adjusting part (4 b), and the adjusting part (4 b) is provided with an adjusting component (5).
2. The three-jaw bone holder for orthopedic surgery according to claim 1, characterized in that: the first clamping jaw (2), the second clamping jaw (3) and the movable clamping jaw (4 d) are arranged oppositely, and arc-shaped jaw-shaped structures are arranged on opposite surfaces of the first clamping jaw (2), the second clamping jaw (3) and the movable clamping jaw (4 d).
3. The three-jaw bone holder for orthopedic surgery according to claim 2, characterized in that: the extension portion (4 a) and the inner sliding rod (4) are coaxially arranged, the inner diameter of the extension portion (4 a) is smaller than that of the inner sliding rod (4), a reset buffer spring (4 e) is arranged between the extension portion (4 a) and the main holding rod (1), one end of the reset buffer spring (4 e) is fixedly connected with the main holding rod (1), and the other end of the reset buffer spring (4 e) is fixedly connected with the inner sliding rod (4).
4. The three-jaw bone holder for orthopedic surgery according to claim 3, characterized in that: the improved portable electric wrench is characterized in that a sliding groove (1 a) is formed in the main holding rod (1), the sliding groove (1 a) is located above the extending portion (4 a), a dovetail groove (1 a 1) is formed in the sliding groove (1 a), the sliding block (4 c) is located in the dovetail groove (1 a 1) and is in sliding fit with the dovetail groove (1 a 1), and the movable clamping jaw (4 d) penetrates through the sliding groove (1 a) and is arranged upwards.
5. The three-jaw bone holder for orthopedic surgery according to claim 4, characterized in that: an end cover (1 b) is arranged at one end, far away from the first clamping jaw (2) and the second clamping jaw (3), of the main holding rod (1), and the end cover (1 b) is in threaded connection with the main holding rod (1).
6. The three-jaw bone holder for orthopedic surgery according to claim 5, characterized in that: the structure of the adjusting part (4 b) is half of the inner sliding rod (4) after being cut along the axial direction, the upper surface of the adjusting part (4 b) is a rectangular cross section, and the lower surface of the adjusting part (4 b) is in a circular arc tubular shape and is in sliding fit with the inner wall of the main holding rod (1).
7. The three-jaw bone holder for orthopedic surgery according to claim 6, characterized in that: the adjusting assembly (5) comprises an adjusting knob (5 a), a transmission rod (5 b), an adjusting gear (5 c) and a movable rack (5 d), the movable rack (5 d) is fixedly arranged on the upper surface of the adjusting portion (4 b), the adjusting gear (5 c) is arranged above the movable rack (5 d) and meshed with the movable rack (5 d), the transmission rod (5 b) is fixedly arranged at the middle shaft of the adjusting gear (5 c), one end of the transmission rod is connected with the inner wall of the main holding rod (1), the other end of the transmission rod (5 b) penetrates through the main holding rod (1), and the adjusting knob (5 a) is fixedly arranged at the other end of the transmission rod (5 b) and located outside the main holding rod (1).
8. The three-jaw bone holder for orthopedic surgery according to claim 7, characterized in that: limiting plates (5 d 1) are arranged at two ends of the movable rack (5 d), the adjusting gear (5 c) is arranged between the two limiting plates (5 d 1), and the periphery of the adjusting knob (5 a) is provided with an anti-friction toothed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920334499.8U CN210138182U (en) | 2019-03-15 | 2019-03-15 | Three-jaw bone holder for orthopedic surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920334499.8U CN210138182U (en) | 2019-03-15 | 2019-03-15 | Three-jaw bone holder for orthopedic surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210138182U true CN210138182U (en) | 2020-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920334499.8U Expired - Fee Related CN210138182U (en) | 2019-03-15 | 2019-03-15 | Three-jaw bone holder for orthopedic surgery |
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| CN (1) | CN210138182U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111528980A (en) * | 2020-04-16 | 2020-08-14 | 上海市杨浦区中心医院(同济大学附属杨浦医院) | Femur positioning device for knee joint fixing platform single condyle replacement |
-
2019
- 2019-03-15 CN CN201920334499.8U patent/CN210138182U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111528980A (en) * | 2020-04-16 | 2020-08-14 | 上海市杨浦区中心医院(同济大学附属杨浦医院) | Femur positioning device for knee joint fixing platform single condyle replacement |
| CN111528980B (en) * | 2020-04-16 | 2023-06-20 | 上海市杨浦区中心医院(同济大学附属杨浦医院) | Femur positioning device for knee joint fixing platform unicondylar replacement |
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Granted publication date: 20200313 Termination date: 20210315 |
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