CN216495488U - Bone cutting saw - Google Patents
Bone cutting saw Download PDFInfo
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- CN216495488U CN216495488U CN202122881691.9U CN202122881691U CN216495488U CN 216495488 U CN216495488 U CN 216495488U CN 202122881691 U CN202122881691 U CN 202122881691U CN 216495488 U CN216495488 U CN 216495488U
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- threaded rod
- blade
- osteotomy
- bolt
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Abstract
The utility model discloses an osteotomy saw which comprises a handle, wherein one end of the handle is provided with a cavity, the inner side surface of the cavity is in threaded connection with a first threaded rod, the outer side of the first threaded rod is in threaded connection with a first threaded ring, one end of the first threaded rod is fixedly provided with a fixed rod, one end of the fixed rod is fixedly provided with a sliding arm assembly, the sliding arm assembly comprises a supporting rod, the inside of the supporting rod is provided with a sliding groove, one end of the inner side surface of the sliding groove is fixedly provided with a bearing, and the other end of the inner side surface of the sliding groove is fixedly provided with a second threaded ring. The blade can be replaced by matching the blade fixing seat with the fixing bolt, the length of the device can be prolonged by the first threaded rod in the using process, the wound area of the osteotomy can be effectively reduced by using the blade as an osteotomy tool, and the position needing the osteotomy can be accurately cut.
Description
Technical Field
The utility model relates to a medical machine for orthopedic surgery, in particular to a bone cutting saw.
Background
An artificial joint replacement is an orthopedic surgery for replacing a diseased joint of a human body and recovering the normal physiological function of the joint by using an artificial biomaterial, and in the operation, a doctor needs to perform characteristic osteotomy on the joint of a patient so as to match the need of osteotomy on the distal end of a femur in the artificial joint prosthesis operation.
The existing osteotomy saw is a swing saw, the saw blade is thicker per se, the metal osteotomy guide plate is not replaced timely, the osteotomy groove can be enlarged due to abrasion, the saw blade swings up and down more, the swing is unbalanced, the osteotomy loss thickness often exceeds 3mm, the osteotomy precision is reduced, and the condition of the non-flat osteotomy surface is easy to appear, thereby the knee joint prosthesis is not attached to the osteotomy surface after being assembled, the postoperative effect is influenced, the osteotomy blade can not be replaced, if the osteotomy blade is damaged, the whole device is required to be replaced, and the operation cost is undoubtedly increased.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a osteotomy saw, which solves the above-mentioned problems of the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a cut bone saw, includes the hand (hold), the cavity has been seted up to the one end of hand (hold), the medial surface threaded connection of cavity has first threaded rod, the outside threaded connection of first threaded rod has first screw thread circle, the one end fixed mounting of first threaded rod has the dead lever, the one end fixed mounting of dead lever has the slip arm subassembly, the slip arm subassembly includes the bracing piece, the sliding tray has been seted up to the inside of bracing piece, the one end fixed mounting of the medial surface of sliding tray has the bearing, the other end fixed mounting of the medial surface of sliding tray has second screw thread circle, the medial surface threaded connection of second screw thread circle has the second threaded rod, the one end fixed mounting of second threaded rod has the bearing, the other end of second threaded rod runs through the medial surface of bracing piece and extends to the lateral surface.
Preferably, the other side of the supporting rod is provided with a fixing assembly, the fixing assembly comprises a first upright post, one end of the first upright post penetrates through a bolt rod, and the outer side surface of the bolt rod is rotatably connected with a blade fixing seat.
Preferably, a fixing bolt penetrates through one end of the blade fixing seat, a first clamping interface is arranged on one side of the fixing bolt, and a second clamping interface is arranged on the other side of the fixing bolt.
Preferably, the outer side surface of the fixing bolt is rotatably connected with a blade, and the other end of the blade is fixedly provided with a second upright post through the fixing bolt and a blade fixing seat.
Preferably, one end of the second upright post is in threaded connection with a second threaded rod.
Preferably, a protective pad is fixedly mounted on the outer side surface of the handle.
Compared with the prior art, the utility model has the beneficial effects that: the blade fixing seat is matched with the fixing bolt to replace the blade, the length of the device can be prolonged through the first threaded rod in the using process, the wound area of the osteotomy can be effectively reduced by using the blade as an osteotomy tool, and the position needing the osteotomy can be accurately cut.
Drawings
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a partial side schematic view of the present invention;
FIG. 4 is a front view of the blade holder of the present invention;
fig. 5 is a schematic view of the staple structure of the present invention.
In the figure: 1. the handle, 11, the cavity, 2, the protection pad, 3, first threaded rod, 4, first thread circle, 5, the dead lever, 6, the slip arm subassembly, 61, the bracing piece, 62, the second threaded rod, 63, the second thread circle, 64, the sliding tray, 65, the bearing, 7, fixed subassembly, 71, first stand, 72, bolt pole, 73, the blade fixing base, 74 fixed bolt, 75, the blade, 76, the second stand, 741, first joint interface, 742, the second joint interface.
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 of the embodiments. 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. 1-5, an embodiment of the present invention is shown:
an osteotomy saw comprises a handle 1, wherein one end of the handle 1 is provided with a cavity 11, the inner side surface of the cavity 11 is in threaded connection with a first threaded rod 3, a first thread ring 4 is connected with the outer side of the first threaded rod 3 through threads, a fixed rod 5 is fixedly arranged at one end of the first threaded rod 3, one end of the fixed rod 5 is fixedly provided with a sliding arm component 6, the sliding arm component 6 comprises a supporting rod 61, a sliding groove 64 is formed inside the supporting rod 61, a bearing 65 is fixedly arranged at one end of the inner side surface of the sliding groove 64, the other end of the inner side surface of the sliding groove 64 is fixedly provided with a second thread ring 63, the inner side surface of the second thread ring 63 is connected with a second threaded rod 62 in a threaded manner, one end of the second threaded rod 62 is fixedly provided with a bearing 65, and the other end of the second threaded rod 62 penetrates through the inner side surface of the support rod 61 and extends to the outer side surface.
In this embodiment, a fixing assembly 7 is disposed on the other side of the supporting rod 61, the fixing assembly 7 includes a first upright column 71, a latch rod 72 penetrates through one end of the first upright column 71, and a blade fixing seat 73 is rotatably connected to an outer side surface of the latch rod 72.
In this embodiment, a fixing pin 74 penetrates through one end of the blade fixing seat 73, a first clamping interface 741 is disposed on one side of the fixing pin 74, and a second clamping interface 742 is disposed on the other side of the fixing pin 74.
In this embodiment, a blade 75 is rotatably connected to an outer side surface of the fixing bolt 74, and a second upright 76 is fixedly mounted at the other end of the blade 75 through the fixing bolt 74 and the blade fixing seat 73.
In this embodiment, one end of the second upright 76 is screwed with the second threaded rod 62.
In this embodiment, a protective pad 2 is fixedly mounted on an outer side surface of the handle 1.
The working principle is as follows: when the device is used, the length of the device can be extended by rotating the handle 1, after the device is rotated and extended, the first threaded ring 4 is rotated to the bottom of the handle 1, the device is fixed and prevented from moving in the using process, the second upright post 76 is close to the first upright post 71 by rotating the second threaded rod 62, the blade 75 is installed on the inner side surface of the blade fixing seat 73 and then inserted into the fixing bolt 74, the blade 75 can be clamped in the middle due to the fact that the second clamping port 742 is formed in one side of the fixing bolt 74, the distance between the first upright post 71 and the second upright post 76 is adjusted by rotating the second threaded rod 62, the blade 75 is fixed, and the device is prevented from moving back and forth in the operation process.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof.
Claims (6)
1. An osteotomy saw, includes the hand (hold), its characterized in that: the utility model discloses a portable electronic device, including the hand (hold), the one end of hand (hold) has seted up the cavity, the medial surface threaded connection of cavity has first threaded rod, the outside threaded connection of first threaded rod has first thread circle, the one end fixed mounting of first threaded rod has the dead lever, the one end fixed mounting of dead lever has the slip arm subassembly, the slip arm subassembly includes the bracing piece, the sliding tray has been seted up to the inside of bracing piece, the one end fixed mounting of the medial surface of sliding tray has the bearing, the other end fixed mounting of the medial surface of sliding tray has second thread circle, the medial surface threaded connection of second thread circle has the second threaded rod, the one end fixed mounting of second threaded rod has the bearing, the other end of second threaded rod runs through the medial surface of bracing piece and extends to the lateral surface.
2. An osteotomy saw as defined in claim 1, wherein: the other side of bracing piece is provided with fixed subassembly, fixed subassembly includes first stand, the one end of first stand is run through there is the bolt pole, the lateral surface of bolt pole rotates and is connected with the blade fixing base.
3. An osteotomy saw as defined in claim 2, wherein: the one end of blade fixing base is run through and is had fixed bolt, first joint mouth has been seted up to one side of fixed bolt, the second joint mouth has been seted up to the opposite side of fixed bolt.
4. An osteotomy saw as defined in claim 3, wherein: the lateral surface of fixing bolt rotates and is connected with the blade, the other end of blade passes through fixing bolt and blade fixing base fixed mounting has the second stand.
5. An osteotomy saw as defined in claim 4, wherein: and one end of the second upright post is in threaded connection with a second threaded rod.
6. An osteotomy saw as defined in claim 1, wherein: and a protective pad is fixedly arranged on the outer side surface of the handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122881691.9U CN216495488U (en) | 2021-11-23 | 2021-11-23 | Bone cutting saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122881691.9U CN216495488U (en) | 2021-11-23 | 2021-11-23 | Bone cutting saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216495488U true CN216495488U (en) | 2022-05-13 |
Family
ID=81533745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122881691.9U Active CN216495488U (en) | 2021-11-23 | 2021-11-23 | Bone cutting saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216495488U (en) |
-
2021
- 2021-11-23 CN CN202122881691.9U patent/CN216495488U/en active Active
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