CN220385170U - Nail extractor for orthopedic operation - Google Patents
Nail extractor for orthopedic operation Download PDFInfo
- Publication number
- CN220385170U CN220385170U CN202321664152.2U CN202321664152U CN220385170U CN 220385170 U CN220385170 U CN 220385170U CN 202321664152 U CN202321664152 U CN 202321664152U CN 220385170 U CN220385170 U CN 220385170U
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- Prior art keywords
- screw
- sleeve
- channel
- groove
- screw rod
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- 230000000399 orthopedic effect Effects 0.000 title claims abstract description 12
- 238000001356 surgical procedure Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 210000000988 bone and bone Anatomy 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 206010017076 Fracture Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 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
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- Surgical Instruments (AREA)
Abstract
The utility model belongs to the field of nail ejectors, and particularly relates to a nail ejector for orthopedic surgery. The technique includes the sleeve pipe of vertical setting, and sleeve pipe top lateral wall level is fixed with the handle, the intraductal independent dress of wearing wears to be equipped with the screw rod that is screw-threaded fit with it, and the screw rod bottom is provided with the head of criticizing that is used for rotating the screw, and the inside wall that is located the sleeve pipe lower extreme is provided with the spacing subassembly that is used for preventing to drop from the screw that takes out in the patient. The screw is conveniently aligned with the screw in the patient through the arrangement of the sleeve, the screw rod and the screwdriver head, so that the screw is conveniently taken out, the screw which enters the sleeve after being taken out is conveniently fixed in the sleeve through the arrangement of the limiting assembly, and the screw is prevented from falling off when the screw rod continuously rotates and the sleeve is taken out.
Description
Technical Field
The utility model belongs to the field of nail ejectors, and particularly relates to a nail ejector for orthopedic surgery.
Background
In the medical field, for fracture patients, an internal fixation technology is generally adopted, a fracture part is connected and fixed through a fixing plate and a screw, and after the fracture part heals, the fixing plate and the screw are taken out through an operation; when the screw is taken out, the screw is screwed by the screw driver when the screw is installed, the screw is easily pulled out when the screw is screwed out after the traditional screw driver is embedded into the groove on the screw cap, the screw is not easy to clamp, the screw driver inevitably turns the screw into a certain damage to the screw, the screw turning structure is deformed to a certain extent, the screw turning structure which is deformed when the screw is taken out is not firmly connected with the screw driver, not only the screw driver is inconvenient to exert force when the screw driver is screwed, but also the screw can not be taken out due to the fact that the screw turning structure is completely damaged by the screw turning structure.
Disclosure of Invention
According to the defects in the prior art, the technical problems to be solved by the utility model are as follows: the orthopedic operation nail extractor is convenient to connect with the fixing screw more stably and is not easy to fall off when the screw is taken out.
The orthopedic surgery nail extractor comprises a vertically arranged sleeve, a handle is horizontally fixed on the side wall of the top of the sleeve, a screw rod in threaded fit with the sleeve is independently arranged in the sleeve in a penetrating mode, a screwdriver head for rotating a screw is arranged at the bottom of the screw rod, and a limiting assembly used for preventing the screw taken out from a patient from falling is arranged on the inner side wall of the lower end of the sleeve.
Further, the limiting component comprises an air bag, an annular groove for installing the air bag is formed in the inner side wall of the sleeve, a first channel is vertically formed in the sleeve, a second channel which is used for being connected and communicated with the annular groove is horizontally formed in the bottom of the first channel, the first channel is connected and communicated with the second channel, connecting pipes are arranged in the first channel and the second channel in a penetrating mode, the air bag is connected with an air pump through the connecting pipes, and sealing plugs for sealing the air bag are arranged at the top of the first channel.
Further, the screwdriver head is detachably connected with the bottom of the screw rod, the fixing block is vertically fixed at the top of the screwdriver head, the bottom of the screw rod is provided with a slot for inserting the fixing block, the front side wall of the slot and the front side wall of the fixing block are provided with threaded through holes which are communicated with each other from front to back, and a limiting rod for fixing the fixing block in the slot is arranged in the threaded through holes in a penetrating mode.
Further, a first groove for placing the top of the connecting pipe is formed in the top of the sleeve, a second groove for facilitating alignment of the screwdriver head and the screw is formed in the bottom of the sleeve, and the second groove is located below the annular groove.
Further, a supporting component for preventing the screw from being too tightly fixed and inconvenient to take out is arranged between the top of the screw and the bottom of the first groove;
the supporting component is a spring, the spring is sleeved on a screw rod positioned in the first groove, and the bottom of the spring is fixed with the bottom of the first groove.
Compared with the prior art, the utility model has the following beneficial effects:
the screw is conveniently aligned with the screw in the patient through the arrangement of the sleeve, the screw rod and the screwdriver head, so that the screw is conveniently taken out, the screw which enters the sleeve after being taken out is conveniently fixed in the sleeve through the arrangement of the limiting assembly, and the screw is prevented from falling off when the screw rod continuously rotates and the sleeve is taken out.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged cross-sectional view of A-A of FIG. 1;
FIG. 3 is an enlarged view of FIG. 1 at B;
the names of the components in the figure are as follows: 1. sleeve 2, handle 3, screw rod 4, sealing plug 5, connecting pipe 6, gasbag 7, criticize the head.
Description of the embodiments
The present utility model is further illustrated by the following examples, which are not intended to be limiting, but any modifications, equivalents, improvements, etc. within the spirit and principles of the present utility model are intended to be included within the scope of the present utility model.
Examples
The orthopedic surgery nail extractor comprises a sleeve 1 which is arranged vertically, is convenient to insert into a patient body and is sleeved above a screw in the patient body, so that the orthopedic surgery nail extractor is convenient to align and connect with the screw, and the screw is convenient to take out;
the handle 2 is horizontally fixed on the side wall of the top of the sleeve 1, so that a medical staff can conveniently exert force, the bottom of the sleeve 1 can be conveniently aligned with the screw, and the working pressure of the medical staff can be reduced;
the screw rod 3 in threaded fit with the sleeve 1 is independently penetrated in the sleeve 1, and a screwdriver head 7 for rotating the screw is arranged at the bottom of the screw rod 3, so that the screwdriver head 7 is aligned with the top of the screw, and the screw is taken out through the rotation of the screw rod 3;
during in-service use, can also install drive assembly additional at screw rod 3 top to be convenient for drive screw rod 3 and rotate, make easier when medical personnel operate, drive assembly is hand pole, and hand pole level sets up the mode drive screw rod 3 rotation through connecting rod and gear engagement
The inside wall that is located sleeve pipe 1 lower extreme is provided with the spacing subassembly that is used for preventing to drop from the internal screw that takes out of patient, prevents that the screw from dropping after taking out into sleeve pipe 1 from the patient in being convenient for to be convenient for prevent that the screw from dropping from causing the injury to the patient when increasing the degree of difficulty for medical personnel.
In the use, as shown in fig. 1, insert the sleeve 1 into the patient, and make sleeve 1 bottom suit in the screw top of patient, then make the groove that cripple head 7 aimed at the screw top in, rethread screwdriver or manpower rotate screw rod 3 take out the screw, after the screw thread takes out and partly gets into sleeve 1 in, rethread spacing subassembly fixes the screw in sleeve 1, prevents to take place to drop at the in-process screw that continuously rotates screw rod 3 and take out the screw.
Examples
The technique of this embodiment will be further described, as shown in fig. 1, 2 and 3, the limiting assembly includes an air bag 6, so that the screw is conveniently fixed by the air bag 6, and thus the screw is taken out to prevent falling;
the inner side wall of the sleeve 1 is provided with an annular groove for installing the air bag 6, so that the air bag 6 is convenient to install, and the air bag 6 is convenient to prevent from affecting the rotation of the screw 3;
a first channel is vertically formed in the sleeve 1, a second channel which is used for being connected and communicated with the annular groove is horizontally formed in the bottom of the first channel, the first channel is connected and communicated with the second channel, a connecting pipe 5 is arranged in the first channel and the second channel in a penetrating manner, an air pump is connected to the air bag 6 through the connecting pipe 5, and the air bag is convenient to pump air and exhaust air into the air bag 6, and the air pump is not shown in the drawing, and is in the prior art;
the top of the first channel is provided with a sealing plug 4 for sealing the first channel, so that the first channel is convenient to seal the air bag 6 after being inflated, and the screw is also convenient to be separated from the sleeve 1 by pulling out the sealing plug 4 after being taken out.
Further, as shown in fig. 1 and 3, the batch head 7 is detachably connected with the bottom of the screw 3, so that the screw is convenient to replace, and when the screw is taken out due to abrasion, only the batch head 7 needs to be replaced, so that the precision is improved, and meanwhile, the use cost is reduced;
the top of the batch head 7 is vertically fixed with a fixed block, the bottom of the screw 3 is provided with a slot for inserting the fixed block, the front side wall of the slot and the front side wall of the fixed block are provided with front and back communicated threaded through holes, a limit rod for fixing the fixed block in the slot is penetrated in the threaded through holes, and the batch head 7 is prevented from falling off in the screw 3 rotation process while the batch head 7 is convenient to replace.
Further to explain, as shown in fig. 1 and 3, the top of the sleeve 1 is provided with a first groove for placing the top of the connecting pipe 5, the bottom of the sleeve 1 is provided with a second groove for aligning the screwdriver head 7 with the screw, and the second groove is located below the annular groove, so that the sleeve 1 is sleeved on the top of the screw, and the screwdriver head 7 is aligned with the screw, so that the screw is taken out more conveniently.
Further to explain, a supporting component for preventing the screw 3 from being too tightly fixed and inconvenient to take out is arranged between the top of the screw 3 and the bottom of the first groove, so that the screw 3 and the sleeve 1 are prevented from being too tightly fixed, and the operation difficulty of medical staff is increased;
the supporting component is a spring, the spring is sleeved on the screw rod 3 positioned in the first groove, the bottom of the spring is fixed with the bottom of the first groove, the spring is not shown in a spring diagram, and the top of the screw rod 3 is conveniently prevented from being tightly attached to the bottom of the first groove, so that the screw rod 3 and the sleeve 1 are prevented from being fixed too tightly.
Claims (5)
1. The utility model provides an orthopedic surgery nail extractor, includes sleeve pipe (1) of vertical setting, and sleeve pipe (1) top lateral wall level is fixed with handle (2), its characterized in that: the screw rod (3) which is in threaded fit with the sleeve is independently arranged in the sleeve (1), a screwdriver head (7) for rotating the screw is arranged at the bottom of the screw rod (3), and a limiting component for preventing the screw taken out from the patient from falling is arranged on the inner side wall of the lower end of the sleeve (1).
2. The orthopedic surgical staple remover of claim 1, wherein: the limiting component comprises an air bag (6), an annular groove for installing the air bag (6) is formed in the inner side wall of the sleeve (1), a first channel is vertically formed in the sleeve (1), a second channel which is used for being connected with the annular groove is horizontally formed in the bottom of the first channel, the first channel is connected and communicated with the second channel, a connecting pipe (5) is arranged in the first channel and the second channel in a penetrating mode, the air bag (6) is connected with an air pump through the connecting pipe (5), and a sealing plug (4) for sealing the air bag is arranged at the top of the first channel.
3. The orthopedic surgical staple remover of claim 1, wherein: the screwdriver head (7) is detachably connected with the bottom of the screw rod (3), a fixed block is vertically fixed at the top of the screwdriver head (7), a slot for inserting the fixed block is formed in the bottom of the screw rod (3), front and rear communicated threaded through holes are formed in the front side wall of the slot and the front side wall of the fixed block, and a limiting rod for fixing the fixed block in the slot is arranged in the threaded through holes in a penetrating mode.
4. The bone surgery nail extractor according to claim 1 or 2, characterized in that: the first groove for placing the top of the connecting pipe (5) is formed in the top of the sleeve (1), the second groove for facilitating alignment of the screwdriver head (7) and the screw is formed in the bottom of the sleeve (1), and the second groove is located below the annular groove.
5. The orthopedic surgical staple remover of claim 4, wherein: a supporting component used for preventing the screw (3) from being too tightly fixed and inconvenient to take out is arranged between the top of the screw (3) and the bottom of the first groove;
the supporting component is a spring, the spring is sleeved on a screw rod (3) positioned in the first groove, and the bottom of the spring is fixed with the bottom of the first groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321664152.2U CN220385170U (en) | 2023-06-28 | 2023-06-28 | Nail extractor for orthopedic operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321664152.2U CN220385170U (en) | 2023-06-28 | 2023-06-28 | Nail extractor for orthopedic operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220385170U true CN220385170U (en) | 2024-01-26 |
Family
ID=89599489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321664152.2U Active CN220385170U (en) | 2023-06-28 | 2023-06-28 | Nail extractor for orthopedic operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220385170U (en) |
-
2023
- 2023-06-28 CN CN202321664152.2U patent/CN220385170U/en active Active
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| GR01 | Patent grant |