CN112237472A - An orthopaedic internal fixation nail puller that can prevent slippage and save effort - Google Patents
An orthopaedic internal fixation nail puller that can prevent slippage and save effort Download PDFInfo
- Publication number
- CN112237472A CN112237472A CN202011184995.3A CN202011184995A CN112237472A CN 112237472 A CN112237472 A CN 112237472A CN 202011184995 A CN202011184995 A CN 202011184995A CN 112237472 A CN112237472 A CN 112237472A
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- Prior art keywords
- screw
- shaped handle
- knob key
- internal fixation
- nail puller
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- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000000399 orthopedic effect Effects 0.000 abstract description 21
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 6
- 238000001356 surgical procedure Methods 0.000 description 7
- 208000010392 Bone Fractures Diseases 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
- A61B2017/922—Devices for impaction, impact element
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses an orthopedic internal fixation nail puller capable of preventing thread slipping and saving labor, which comprises a T-shaped handle, a knob key, a rubber ring and a screw head, wherein the middle part in the T-shaped handle is of a hollow structure, the knob key is arranged in the middle of the upper end of the T-shaped handle, a hexagonal slot is formed in the bottom end of the knob key, and a screw rod is arranged below the T-shaped handle, which is far away from the knob key. Has the advantages that: according to the invention, through the design of the T-shaped handle, the rubber ring, the threaded sleeve, the knob key, the sliding table, the sliding groove, the connecting rod and the guide table, the pressing plate can be conveniently and rapidly unfolded by rotating the knob key in the screw pulling process, so that the rubber ring and the screw head can be tightly attached to the screw to be pulled, the phenomenon of screw slipping in the screw pulling process is avoided, time and labor are saved, the screw pulling efficiency is improved, and the operation efficiency and success rate are ensured.
Description
Technical Field
The invention relates to the technical field of medical operations, in particular to a labor-saving orthopedic internal fixation nail puller capable of preventing thread slipping.
Background
Currently, internal fixation of bone fractures is one of the most common surgical treatment modalities for bone fractures. The internal fixation of orthopedics can better maintain the anatomical reduction of fracture, firmly support, bear the stress of fracture ends and realize early functional exercise, thereby being widely applied clinically. And most of the internal fixation needs to be removed. The reasons for an orthopaedic surgeon to remove an internal fixation are many, including fixation failure, malposition, infection, incision problems, and pain. Although the operation is simple and routine, sometimes complications such as difficult operation, neurovascular injury, and even postoperative re-fracture occur.
When the screw is pulled out in the existing orthopedic surgery, the phenomenon of screw slipping can often occur, so that the pulling of the screw is time-consuming and labor-consuming, the efficiency and the success rate of the orthopedic surgery are reduced, and therefore a novel orthopedic internal fixation screw puller capable of preventing screw slipping and saving labor is urgently needed to solve the existing problems.
Disclosure of Invention
Technical problem to be solved
In order to overcome the defects of the prior art, the orthopedic internal fixation screw extractor capable of preventing screw slipping and saving labor is provided, and the problems that the screw slipping phenomenon often occurs when the screw is extracted in the existing orthopedic operation, so that the screw is time-consuming and labor-consuming to extract and the efficiency and success rate of the orthopedic operation are reduced are solved.
(II) technical scheme
The invention is realized by the following technical scheme: the invention provides an orthopedic internal fixation nail puller capable of preventing screw thread sliding and saving labor, which comprises a T-shaped handle, a knob key, a rubber ring and a screw head, wherein the middle part in the T-shaped handle is of a hollow structure, the knob key is arranged in the middle part of the upper end of the T-shaped handle, a hexagonal slot is formed at the bottom end of the knob key, a screw rod is arranged in the T-shaped handle and far away from the lower part of the knob key, a hexagonal inserting table is formed at the top end of the screw rod and close to the hexagonal slot, a screw sleeve is arranged at the bottom end of the screw rod, two sliding tables are annularly distributed at the upper end of the peripheral side wall of the screw sleeve, a sliding groove is formed in the T-shaped handle and close to the sliding tables, six connecting rods are annularly distributed in the middle part of the peripheral side wall of the screw sleeve, the screw head is arranged at one end of the, the rubber ring is fixed on the periphery of the screw head in an embedded mode, and a guide table is arranged at the top end of the pressing plate.
Through adopting above-mentioned technical scheme, T type handle the rubber ring the swivel nut the knob key the slip table the spout the connecting rod and the design of guide table can be through rotating at the screw pulling in-process the knob key realizes the convenient distraction of clamp plate, thereby makes the rubber ring and the screw head can closely laminate with waiting to pull the screw, has avoided the smooth silk phenomenon at the screw pulling in-process, and labour saving and time saving has improved the efficiency of pulling of screw, ensures operation efficiency and success rate.
Furthermore, the knob key is rotationally connected with the T-shaped handle, and the hexagonal socket is inserted into the hexagonal slot.
By adopting the technical scheme, the knob key can be rotated to drive the screw rod to rotate through the hexagonal slot.
Furthermore, the screw rod is rotationally connected with the T-shaped handle, and the screw rod is connected with the threaded sleeve through threads.
By adopting the technical scheme, the thread transmission between the screw rod and the thread sleeve is ensured.
Furthermore, the connecting rod is rotatably connected with the pressing plate and the connecting rod is rotatably connected with the threaded sleeve.
By adopting the technical scheme, the reliable installation of the connecting rod can be realized.
Furthermore, the sliding table is formed on the screw sleeve and is rotationally connected with the sliding groove.
Through adopting above-mentioned technical scheme, the slip table not only can be for the swivel nut provides the direction, can make moreover the swivel nut is along with T type handle rotates.
Furthermore, the guide table is formed on the pressing plate and is connected with the T-shaped handle in a sliding mode.
By adopting the technical scheme, the guide table can provide guidance for the sliding of the pressing plate.
(III) advantageous effects
Compared with the prior art, the invention has the following beneficial effects:
in order to solve the problems that when a screw is pulled out in the existing orthopedic surgery, the screw is frequently slipped, so that the pulling of the screw is time-consuming and labor-consuming, and the efficiency and success rate of the orthopedic surgery are reduced, the invention can realize the convenient opening of the pressing plate by rotating the knob key in the screw pulling process through the design of the T-shaped handle, the rubber ring, the screw sleeve, the knob key, the sliding table, the sliding chute, the connecting rod and the guide table, so that the rubber ring and the screw head can be tightly attached to the screw to be pulled, the screw slipping phenomenon in the screw pulling process is avoided, the time and the labor are saved, the screw pulling efficiency is improved, and the surgery efficiency and the success rate are ensured.
Drawings
FIG. 1 is a schematic structural diagram of an orthopedic internal fixation nail puller capable of preventing thread slipping and saving labor according to the invention;
FIG. 2 is a front sectional view of the orthopedic internal fixation nail puller capable of preventing thread slipping and saving labor according to the invention;
FIG. 3 is an enlarged view of the portion A of the orthopedic internal fixation nail puller capable of preventing thread slipping and saving labor according to the invention;
FIG. 4 is an enlarged view of the position B in the orthopedic internal fixation nail puller capable of preventing thread slipping and saving labor according to the invention;
fig. 5 is a bottom view of a screw head, a screw sleeve and a rubber ring in the orthopedic internal fixation nail puller, which can prevent screw slipping and save labor.
The reference numerals are explained below:
1. a T-shaped handle; 2. a screw head; 3. a rubber ring; 4. a knob key; 5. a hexagonal socket; 6. a screw; 7. a hexagonal inserting table; 8. a threaded sleeve; 9. a connecting rod; 10. a chute; 11. a sliding table; 12. pressing a plate; 13. a guide table.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-5, the orthopedic internal fixation nail puller capable of preventing thread slipping and saving labor in the present embodiment comprises a T-shaped handle 1, a knob key 4, a rubber ring 3 and a screw head 2, wherein the T-shaped handle 1 adopts a hollow structure at the middle part, the knob key 4 is arranged at the middle part of the upper end of the T-shaped handle 1, a hexagonal socket 5 is formed at the bottom end of the knob key 4, a screw rod 6 is arranged in the T-shaped handle 1 and far away from the lower part of the knob key 4, a hexagonal socket 7 is formed at the top end of the screw rod 6 and near the hexagonal socket 5, a screw sleeve 8 is arranged at the bottom end of the screw rod 6, two sliding tables 11 are annularly distributed at the upper end of the peripheral side wall of the screw sleeve 8, a sliding groove 10 is formed in the T-shaped handle 1 and near the sliding tables 11, six connecting rods 9 are annularly distributed at the middle part of the peripheral side wall, and six clamp plates 12 can alternate segregation, the screw head 2 periphery is fixed with rubber ring 3 through nested mode, clamp plate 12 top is provided with guide table 13, T type handle 1, rubber ring 3, swivel nut 8, knob key 4, slip table 11, spout 10, connecting rod 9 and guide table 13's design, can realize the convenient of clamp plate 12 struts through rotating knob key 4 at the screw pulling in-process, thereby make rubber ring 3 and screw head 2 can with treat that the screw is drawn closely to laminate, the smooth silk phenomenon at the screw pulling in-process has been avoided, time saving and labor saving, the efficiency of pulling of screw has been improved, ensure operation efficiency and success rate.
As shown in fig. 1-5, in this embodiment, a knob key 4 is rotatably connected to a T-shaped handle 1, a hexagonal socket 7 is inserted into the hexagonal socket 5, the knob key 4 can be rotated to drive a screw rod 6 to rotate through the hexagonal socket 5, the screw rod 6 is rotatably connected to the T-shaped handle 1, the screw rod 6 is in threaded connection with a threaded sleeve 8, so as to ensure the threaded transmission between the screw rod 6 and the threaded sleeve 8, a connecting rod 9 is rotatably connected to a pressing plate 12, the connecting rod 9 is rotatably connected to the threaded sleeve 8, so as to realize reliable installation of the connecting rod 9, a sliding table 11 is formed on the threaded sleeve 8, the sliding table 11 is rotatably connected to a sliding groove 10, the sliding table 11 can not only provide guidance for the threaded sleeve 8, but also enable the threaded sleeve 8 to rotate along with the T-shaped handle 1, a guide table 13 is formed on the pressing plate 12, the guide table 13 is slidably connected to the.
The specific implementation process of this embodiment is as follows: when a screw in an orthopedic operation needs to be pulled out, firstly, the screw head 2 is inserted into a hexagonal groove on the screw to be pulled out by holding the T-shaped handle 1 by hand, then the T-shaped handle 1 is kept still, the knob key 4 is rotated, the screw rod 6 can be driven to rotate by the hexagonal slot 5 after the knob key 4 is rotated, the screw sleeve 8 can move downwards along the vertical direction under the screw thread transmission effect and the guide effect of the sliding table 11 after the screw rod 6 is rotated, the pressing plate 12 can be outwards pushed out by the connecting rod 9 in the downward moving process of the screw sleeve 8, the rubber ring 3 can be tightly attached into the hexagonal slot on the screw to be pulled out after the pressing plate 12 is pushed out and spread, so that the screw head 2 is tightly attached to the screw to be pulled out, then, the screw sleeve 8 can be driven to rotate by the sliding table 11 only by rotating the T-shaped handle 1, the screw sleeve 8 can drive the screw head 2 to rotate by the connecting rod 9 after rotating, thereby realizing the convenient extraction of the screw in the orthopedic surgery.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011184995.3A CN112237472B (en) | 2020-10-30 | 2020-10-30 | An orthopaedic internal fixation nail puller that can prevent slippage and save effort |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011184995.3A CN112237472B (en) | 2020-10-30 | 2020-10-30 | An orthopaedic internal fixation nail puller that can prevent slippage and save effort |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112237472A true CN112237472A (en) | 2021-01-19 |
| CN112237472B CN112237472B (en) | 2022-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011184995.3A Expired - Fee Related CN112237472B (en) | 2020-10-30 | 2020-10-30 | An orthopaedic internal fixation nail puller that can prevent slippage and save effort |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112237472B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114305644A (en) * | 2022-02-21 | 2022-04-12 | 重庆大学附属三峡医院 | Intelligent orthopaedic clinical nail taking equipment and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856265A (en) * | 2010-06-02 | 2010-10-13 | 王书军 | Extractor of orthopedic slipped screws |
| CN104337671A (en) * | 2014-11-04 | 2015-02-11 | 温州医科大学附属第二医院 | Foldable walking stick |
| US20170209242A1 (en) * | 2014-08-12 | 2017-07-27 | University Of Pittsburgh - Of The Commonwealth System Of Higher Education | Dental abutment screw extractor |
| CN206617415U (en) * | 2017-02-14 | 2017-11-07 | 苏州海格精密五金有限公司 | A kind of screw and nut combination |
| CN207949891U (en) * | 2017-04-21 | 2018-10-12 | 王翰宇 | Screwdriver for screwing slipped screws in bone surgery |
| CN211315493U (en) * | 2019-12-30 | 2020-08-21 | 青岛华德仪表工程有限公司 | Temporary plugging device for water supply pipeline for construction |
| CN211565758U (en) * | 2019-12-18 | 2020-09-25 | 国投酒泉第一风电有限公司 | Taking-out device for internal hexagonal screw |
-
2020
- 2020-10-30 CN CN202011184995.3A patent/CN112237472B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856265A (en) * | 2010-06-02 | 2010-10-13 | 王书军 | Extractor of orthopedic slipped screws |
| US20170209242A1 (en) * | 2014-08-12 | 2017-07-27 | University Of Pittsburgh - Of The Commonwealth System Of Higher Education | Dental abutment screw extractor |
| CN104337671A (en) * | 2014-11-04 | 2015-02-11 | 温州医科大学附属第二医院 | Foldable walking stick |
| CN206617415U (en) * | 2017-02-14 | 2017-11-07 | 苏州海格精密五金有限公司 | A kind of screw and nut combination |
| CN207949891U (en) * | 2017-04-21 | 2018-10-12 | 王翰宇 | Screwdriver for screwing slipped screws in bone surgery |
| CN211565758U (en) * | 2019-12-18 | 2020-09-25 | 国投酒泉第一风电有限公司 | Taking-out device for internal hexagonal screw |
| CN211315493U (en) * | 2019-12-30 | 2020-08-21 | 青岛华德仪表工程有限公司 | Temporary plugging device for water supply pipeline for construction |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114305644A (en) * | 2022-02-21 | 2022-04-12 | 重庆大学附属三峡医院 | Intelligent orthopaedic clinical nail taking equipment and method |
| CN114305644B (en) * | 2022-02-21 | 2022-11-22 | 重庆大学附属三峡医院 | Intelligent orthopaedic clinical screw taking equipment and screw taking method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112237472B (en) | 2022-03-29 |
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Address after: 325000 No. 109 College West Road, Zhejiang, Wenzhou Patentee after: THE SECOND AFFILIATED HOSPITAL & YUYING CHILDREN'S HOSPITAL OF WENZHOU MEDICAL University Address before: 325000 science and technology incubator of Wenzhou National University, 38 Dongfang South Road, Ouhai District, Wenzhou City, Zhejiang Province Patentee before: THE SECOND AFFILIATED HOSPITAL & YUYING CHILDREN'S HOSPITAL OF WENZHOU MEDICAL University |
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Granted publication date: 20220329 |
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