CN108338830B - Bone fracture plate bending device - Google Patents
Bone fracture plate bending device Download PDFInfo
- Publication number
- CN108338830B CN108338830B CN201710052388.3A CN201710052388A CN108338830B CN 108338830 B CN108338830 B CN 108338830B CN 201710052388 A CN201710052388 A CN 201710052388A CN 108338830 B CN108338830 B CN 108338830B
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- jacket
- clamping sleeve
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- sleeve
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention belongs to the technical field of bone fracture plate manufacturing, and particularly relates to a bone fracture plate bending device, which comprises a handle, an outer sleeve and a clamping sleeve, wherein the handle is connected with the outer sleeve, the clamping sleeve is accommodated in the outer sleeve, the inner part of the outer sleeve is provided with a rotating area and a fixing area, teeth are arranged on the inner wall of the fixing area and the outer wall of the clamping sleeve so as to enable the clamping sleeve to be meshed and fixed with the fixing area, the clamping sleeve can reciprocate in the rotating area and the fixing area, and openings which are convenient for the bone fracture plate to extend into the clamping sleeve are formed in the outer sleeve and the clamping sleeve. The bone plate bending device can accurately bend the bone plate, and is convenient and quick to operate.
Description
Technical Field
The invention belongs to the technical field of bone plate manufacturing, and particularly relates to a bone plate bending device.
Background
Minimally invasive bone fracture plate is a modern fracture internal fixation technology, which adopts a closed fracture reduction technology and uses non-pressurized bone fracture plate for fixation to maintain fracture alignment, so that the surgical exposure and soft tissue stripping degree are minimized, the damage to the blood supply of tissues such as skin, periosteum, fracture blocks and the like is reduced, the fracture healing rate can be improved, and the occurrence rate of complications such as infection or fracture nonunion and the like is reduced. When the existing bone fracture plate is manufactured or used, a bending machine is required to bend the existing bone fracture plate at a certain angle so as to adapt to bones in different forms. The existing bending device has complex structure or inconvenient operation, and reduces the bending efficiency of the bone fracture plate.
Disclosure of Invention
The invention aims to provide a bone plate bending device which can accurately bend a bone plate and is convenient and quick to operate.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the bone fracture plate comprises a handle, an outer sleeve and a clamping sleeve, wherein the handle is connected with the outer sleeve, the clamping sleeve is accommodated in the outer sleeve, the inner part of the outer sleeve is provided with a rotating area and a fixing area, teeth are arranged on the inner wall of the fixing area and the outer wall of the clamping sleeve so that the clamping sleeve is meshed and fixed with the fixing area, the clamping sleeve can reciprocate in the rotating area and the fixing area, and openings which are convenient for the bone fracture plate to extend into the clamping sleeve are formed in the outer sleeve and the clamping sleeve.
Preferably, the bone plate bender further comprises a compression device which extends from the inner wall of the rotation zone and abuts the jacket.
Preferably, the compressing device comprises a positioning piece, an elastic piece and a compressing piece, wherein the positioning piece is fixedly arranged on the jacket, one end of the elastic piece is propped against the positioning piece, the other end of the elastic piece is connected with the compressing piece, the compressing piece penetrates through the jacket and stretches out of the inner wall of the jacket, and the compressing piece is propped against the groove parts of two adjacent teeth on the jacket.
Preferably, the positioning piece is a screw, the elastic piece is a pressure spring, and the pressing piece is a steel ball.
Preferably, the end of the fixing area is provided with a cover to prevent the jacket from being removed from the fixing area.
Preferably, the cross sections of the jacket, the jacket and the cover are all C-shaped.
Preferably, a limiting piece is arranged at the end part of the rotating area, and protrudes from the inner wall of the rotating area to prevent the jacket from falling out of the rotating area.
Preferably, a rotating shaft is arranged at the contact part of the limiting part and the clamping sleeve, a groove is arranged at the contact part of the end surface of the clamping sleeve and the rotating shaft, the rotating shaft is clamped in the groove, and the rotating shaft relatively slides in the groove when the clamping sleeve rotates.
After the technical scheme is adopted, the invention has the following positive effects:
(1) When the bone fracture plate bending device is used, the C-shaped clamping sleeve is used for clamping a part of the bone fracture plate, after the bone fracture plate is placed in the clamping sleeve from the opening, the clamping sleeve can rotate when the clamping sleeve is positioned in the rotating area, the opening part on the clamping sleeve is staggered with the opening part on the outer sleeve, then the clamping sleeve is pulled to pull the bone fracture plate to the fixed area, the clamping sleeve is meshed and fixed with the fixed area through the teeth, and the clamping sleeve does not rotate in the fixed area, so that the clamping part of the bone fracture plate can be fixed;
(2) By arranging the pressing device, the steel balls on the pressing device are always positioned between the grooves of the two teeth on the jacket and press the jacket, so that the jacket is correspondingly meshed with the teeth on the jacket, and the jacket can smoothly rotate in the jacket.
Drawings
FIG. 1 is a first block diagram of a bone plate bender according to the present invention;
FIG. 2 is a second block diagram of the bone plate bender of the present invention;
FIG. 3 is a block diagram of a jacket in accordance with the present invention;
FIG. 4 is a schematic diagram showing the cooperation of the jacket and the compressing apparatus according to the present invention;
FIG. 5 is a schematic diagram showing the cooperation of the limiting member and the jacket in the present invention;
FIG. 6 is a block diagram of a stop member in the present invention;
FIG. 7 is a view of the bone plate bender of the present invention in use;
FIG. 8 is a graph of the bending effect of a bone plate after use of a bone plate bender;
fig. 9 is a second view of the bending effect of the bone plate after use of the bone plate bending device.
Wherein: 1. the handle, 2, the overcoat, 21, the rotation district, 22, the fixed zone, 23, the through-hole, 3, press from both sides the cover, 31, the recess, 4, setting element, 5, elastic component, 6, compress tightly the piece, 7, closing cap, 8, locating part, 81, pivot.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in figures 1-6, the bone fracture plate bending device comprises a handle 1, a jacket 2, a jacket 3 and a pressing device, wherein the handle 1 is fixedly connected with the jacket 2, the jacket 3 is accommodated in the jacket 2, the interior of the jacket 2 is divided into a rotating area 21 and a fixed area 22, the inner wall of the fixed area 22 and the outer wall of the jacket 3 are respectively provided with matched teeth to enable the two to be meshed, the jacket 3 can reciprocate between the rotating area 21 and the fixed area 22, the jacket 3 can rotate in situ when in the rotating area 21, and the jacket 3 is locked and does not rotate any more when in the fixed area 22. Openings are arranged on the jacket 2 and the jacket 3, so that the cross sections of the jacket 2 and the jacket 3 are C-shaped. When in use, the bone fracture plate is placed into the jacket 3 from the C-shaped opening, and the jacket 3 clamps the part of the bone fracture plate which needs to be bent.
The compressing device comprises a positioning piece 4, an elastic piece 5 and a compressing piece 6, a connecting block is arranged at the root part of the handle 1 connected with the jacket 2, the compressing device is fixedly installed in the connecting block, one end of the elastic piece 5 is connected with the positioning piece 4, the other end of the elastic piece is connected with the compressing piece 6, a through hole 23 is formed in the jacket 2, the compressing piece 6 penetrates through the through hole 23 and stretches out of the inner wall of the rotating area 21 on the jacket 2, and the compressing piece 6 is always propped against the groove parts of two adjacent teeth on the jacket 3. The positioning piece 4 is a screw, the screw is fixedly arranged in the connecting block, the elastic piece 5 is a pressure spring, and the compressing piece 6 is a steel ball.
The end of the fixed area 22 is provided with a cover 7, and the cover 7 blocks the jacket 3 from the side of the fixed area 22, so that the jacket 3 can be prevented from falling out from the side of the fixed area 22.
The end of the rotation area 21 is provided with a limiting piece 8, and the limiting piece 8 protrudes from the inner wall of the rotation area 21, so that the jacket 3 can be prevented from falling out from the side of the rotation area 21. The rotating shaft 81 is arranged at the contact part between the limiting piece 8 and the jacket 3, the groove 31 is arranged at the contact part between the end surface of the jacket 3 and the rotating shaft 81, the rotating shaft 81 is clamped in the groove 31, and the rotating shaft 81 relatively slides in the groove 31 when the jacket 3 rotates, so that the jacket 3 can be ensured to rotate more smoothly in the rotating area 21. As shown in fig. 7, an initial state diagram of the bone plate bending device according to the present invention when bending a bone plate is shown, and the operation conditions are as follows: when in use, the two bone plate bending devices are matched for use, one is used for clamping the bone plate, and the other is used for bending. The initial part of the jacket 3 on the bending device is positioned at the rotating area 21, the part of the bone fracture plate to be bent is placed into the jacket 3 through the opening of the jacket 3, then the jacket 3 is rotated to stagger the opening of the jacket 3 and the opening of the jacket 2, then the jacket 3 is pulled to move towards the fixed area 22 by pulling the bone fracture plate, the jacket 3 is locked and fixed at the fixed area 22 and is not rotated, and at the moment, the handle 1 is pulled to bend the bone fracture plate towards the direction to be bent. After bending, the bone plate is pushed, the jacket 3 is driven to move towards the rotating area 21, the jacket 3 rotates in the rotating area 21, the opening on the jacket 3 corresponds to the opening on the jacket 2, and then the bone plate is taken out from the jacket 3.
When the bending device is applied with force, the acting force applied to the handle 1 always extends along the extension direction of the handle 1, and the central axis of the bone plate in the initial state is always perpendicular to the cross section of the jacket 3 when the bone plate is clamped by the jacket 3 because the extension direction of the handle 1 is parallel to the cross section of the jacket 3, so the acting force applied to the bending device is always perpendicular to the central axis of the bone plate. Because the bone fracture plate is flat, the clamp sleeve 3 clamps the bone fracture plate from two sides of the bone fracture plate when the bone fracture plate is placed in the clamp sleeve 3, the clamp sleeve 3 rotates in the rotating area 21 at different angles, so that the plane of the bone fracture plate faces any direction, and the plane of the bone fracture plate is always perpendicular to the cross section of the clamp sleeve 3 during the process, and the plane of the bone fracture plate faces controllably, so that the part of the bone fracture plate, which needs to be bent, can be bent in any direction. As shown in fig. 8, the bending effect of the bone plate is shown, the bent bone plate is positioned on a plane, and when the bone plate is bent, the bone plate is only required to be bent in the same plane. As shown in FIG. 9, another plate bending effect is shown, the bent plate is in different planes, and when the plate is bent, the bending device is twisted to make the plate different in surface. Fig. 7-8 are merely illustrative of the effect of the bone plate after bending, and may be in other states.
It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which will be within the scope of the invention as defined in the claims.
Claims (4)
1. A bone plate bender which is characterized in that: comprises a handle (1), an outer sleeve (2) and a clamping sleeve (3), wherein the handle (1) is connected with the outer sleeve (2), the clamping sleeve (3) is accommodated in the outer sleeve (2), the inner part of the outer sleeve (2) is divided into a rotating area (21) and a fixed area (22), teeth are arranged on the inner wall of the fixed area (22) and the outer wall of the clamping sleeve (3) so that the clamping sleeve (3) is meshed and fixed with the fixed area (22), the clamping sleeve (3) can reciprocate between the rotating area (21) and the fixed area (22), a limiting piece (8) is arranged at the end part of the rotating area (21), the limiting piece (8) protrudes from the inner wall of the rotating area (21) so as to prevent the clamping sleeve (3) from falling out from the rotating area (21), a rotating shaft (81) is arranged at the contact part between the limiting piece (8) and the clamping sleeve (3), a groove (31) is arranged at the contact part between the end surface of the clamping sleeve (3) and the rotating shaft (81), the rotating shaft (81) is clamped in the groove (31), the rotating shaft (81) slides relatively in the groove (31), the clamping sleeve (2) and a bone setting plate (3) are arranged on the inner part of the clamping sleeve (3) so as to be convenient to extend into the clamping sleeve (3),
the bone fracture plate bending machine further comprises a pressing device, the pressing device stretches out of the inner wall of the rotating area (21) and abuts against the jacket (3), the pressing device comprises a positioning piece (4), an elastic piece (5) and a pressing piece (6), the positioning piece (4) is fixedly mounted on the jacket (2), one end of the elastic piece (5) abuts against the positioning piece (4), the other end of the elastic piece is connected with the pressing piece (6), the pressing piece (6) penetrates through the jacket (2) and stretches out of the inner wall of the jacket (2), and the pressing piece (6) abuts against the groove parts of two adjacent teeth on the jacket (3).
2. The bone plate bender of claim 1, wherein: the positioning piece (4) is a screw, the elastic piece (5) is a pressure spring, and the pressing piece (6) is a steel ball.
3. The bone plate bender of claim 1, wherein: the end of the fixing area (22) is provided with a sealing cover (7) to prevent the jacket (3) from falling out of the fixing area (22).
4. The bone plate bender according to claim 3, wherein: the cross sections of the outer sleeve (2), the jacket (3) and the sealing cover (7) are all C-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710052388.3A CN108338830B (en) | 2017-01-22 | 2017-01-22 | Bone fracture plate bending device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710052388.3A CN108338830B (en) | 2017-01-22 | 2017-01-22 | Bone fracture plate bending device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108338830A CN108338830A (en) | 2018-07-31 |
| CN108338830B true CN108338830B (en) | 2023-10-20 |
Family
ID=62974358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710052388.3A Active CN108338830B (en) | 2017-01-22 | 2017-01-22 | Bone fracture plate bending device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108338830B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202619833U (en) * | 2012-05-21 | 2012-12-26 | 刘庆坤 | Bone plate rotating bender |
| US8685037B1 (en) * | 2009-12-22 | 2014-04-01 | Christopher Jordan | Bone reduction and plate clamp assembly |
| CN203736297U (en) * | 2014-03-17 | 2014-07-30 | 于洛臣 | Multifunctional steel plate bending device |
| CN104526634A (en) * | 2014-11-30 | 2015-04-22 | 芜湖世特瑞转向系统有限公司 | Meshing interval adjustment fixture of press block and rack of steering machine |
| CN104546110A (en) * | 2013-10-26 | 2015-04-29 | 郑州泽正技术服务有限公司 | Bender for Kirschner wire for orthopedics |
| DE102014200187A1 (en) * | 2014-01-09 | 2015-07-09 | Intercus Gmbh | Instrument for plate osteosynthesis |
| CN105310759A (en) * | 2014-05-30 | 2016-02-10 | 郑州泽正技术服务有限公司 | Needle bending and scraping method and bending and scraping-off device |
| CN205433869U (en) * | 2015-12-31 | 2016-08-10 | 常州华森医疗器械有限公司 | Orthopedics steel sheet bending machine |
| CN205702236U (en) * | 2016-06-17 | 2016-11-23 | 郑州机械研究所 | Wire rod apparatus for bending and bending tool rest thereof |
-
2017
- 2017-01-22 CN CN201710052388.3A patent/CN108338830B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8685037B1 (en) * | 2009-12-22 | 2014-04-01 | Christopher Jordan | Bone reduction and plate clamp assembly |
| CN202619833U (en) * | 2012-05-21 | 2012-12-26 | 刘庆坤 | Bone plate rotating bender |
| CN104546110A (en) * | 2013-10-26 | 2015-04-29 | 郑州泽正技术服务有限公司 | Bender for Kirschner wire for orthopedics |
| DE102014200187A1 (en) * | 2014-01-09 | 2015-07-09 | Intercus Gmbh | Instrument for plate osteosynthesis |
| CN203736297U (en) * | 2014-03-17 | 2014-07-30 | 于洛臣 | Multifunctional steel plate bending device |
| CN105310759A (en) * | 2014-05-30 | 2016-02-10 | 郑州泽正技术服务有限公司 | Needle bending and scraping method and bending and scraping-off device |
| CN104526634A (en) * | 2014-11-30 | 2015-04-22 | 芜湖世特瑞转向系统有限公司 | Meshing interval adjustment fixture of press block and rack of steering machine |
| CN205433869U (en) * | 2015-12-31 | 2016-08-10 | 常州华森医疗器械有限公司 | Orthopedics steel sheet bending machine |
| CN205702236U (en) * | 2016-06-17 | 2016-11-23 | 郑州机械研究所 | Wire rod apparatus for bending and bending tool rest thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108338830A (en) | 2018-07-31 |
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