CN203226891U - General pedicle screw wrench - Google Patents
General pedicle screw wrench Download PDFInfo
- Publication number
- CN203226891U CN203226891U CN 201320056923 CN201320056923U CN203226891U CN 203226891 U CN203226891 U CN 203226891U CN 201320056923 CN201320056923 CN 201320056923 CN 201320056923 U CN201320056923 U CN 201320056923U CN 203226891 U CN203226891 U CN 203226891U
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- CN
- China
- Prior art keywords
- thread
- sleeve
- left end
- screw
- screw thread
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- Expired - Lifetime
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Abstract
The utility model relates to a general pedicle screw wrench in cooperation with a spinal screw for use, belonging to the medical apparatus field and suitable for treatment of orthopedic diseases. A general pedicle screw wrench is composed of a wrench rod (1), a sleeve (2), a handgrip (3), a sleeve head (4) and a spring coil (5) and is characterized in that a right end head part of the wrench rod (1) is provided with a triangular interface and an annular groove, wherein the triangular interface is in connection with a quick-change handle; the left end head of the wrench rod (1) has a U-shaped flat having thickness smaller than a rod diameter and connecting to a spinal nail U-shaped port; the sleeve (2) is a hollow structure; the right end head is provided with a step and an annular groove, the left end is provided with a long circular through hole to provide convenience for disinfection cleaning in operation and the left end head is provided with composite threads to determine operation depth and orientation and create a surgical incision; the general pedicle screw wrench and the quick-change handle are in cooperation for use by taking screws to screw into corresponding operation positions of a centrum and implant to a spinal rod to fix to required operation positions, realizing operation purpose.
Description
Technical field
This utility model relates to a kind of general pedicle nail spanner, belongs to medical instruments field, is used with spinal screw, is applicable to the treatment orthopaedic disease.
Background technology
In the clinical operation process, spanner is a kind of power tool that the doctor uses always, it is of a great variety, at clinical operation particularly in the bone surgery, the doctor need use handle to turn objects such as bolt, screw or nut, present employed spanner selectivity in operation is few, has brought inconvenience for doctor's operation technique.
Summary of the invention
The purpose of this utility model is: a kind of general pedicle nail spanners easy to operate, the highly versatile characteristics that have are provided.
The technical solution of the utility model is as follows:
General pedicle nail spanner is made up of wrenching bar (1), sleeve (2), handgrip (3), collet head (4), turn (5), it is characterized in that: wrenching bar (1) right-hand member head has rhizoma sparganic interface and annular groove, be connected with the quick change handle, the left end head has thickness flat less than bar portion diameter, the shape that takes the shape of the letter U, the place is connected with spinal column nail U-shaped mouth; The design of sleeve (2) hollow structure, the right-hand member head has step, and there is cannelure inside, and the left end outer surface has oval through hole, and sterilization is cleaned when being convenient to perform the operation, and the left end head has compound thread.
Sleeve of the present utility model (2) left end screw thread adopts the compound thread form processing, and screw thread feed point is identical, guarantees thread useful effect sections, and the major thread bar can be crossed screw thread: B10, M10; The minor thread bar can be crossed screw thread: B9, M9 * 1, wherein B10 and M10 screw thread do not disturb mutually, separately corresponding female thread is screwed, can screw random length, minor thread then is directly to be worth at pitch and the end in conjunction with B9 and M9 * 1 screw thread, screw thread is chosen in compromise, guarantees that threaded rod can screw 2 to 3 at least with the female thread of B9, M9 * 1 and buckle (2P-3P) (wherein P is pitch), and the minor thread bar does not influence holding of major thread pole pair B10, M10 screw thread and gets function.
The design of handgrip (3) central through hole, outer surface has uniform arc groove, is convenient to hand.
Collet head of the present utility model (4) central through hole, outer surface has reticulate pattern, is connected with sleeve (2).
Turn of the present utility model (5) cooperates with sleeve (2) right-hand member head cannelure, be stuck on wrenching bar (1) polished rod, play the effect of positioning and fixing, prevent that sleeve (2) is in the middle of use, especially landing in operation process makes troubles for doctor's operation technique.
By imaging examination before the art, diagnosis patient diseases such as row X line, CT examination, determine patient's surgery location, type of surgery and implement operation: the degree of depth and the orientation of determining operation, the row surgical openings, general pedicle nail spanner and quick change handle are united use, hold and get screw, be screwed into the corresponding surgery location of vertebral body, implant spinal rod, be fixed to the requirements of operation position, realize the operation purpose.
General pedicle nail spanner of the present utility model adopts novel project organization, can realize the effect of getting of holding of four tap wrench simultaneously, and highly versatile is simple to operate, practical, reduces dosage and the cost of instrument, is suitable for the orthopaedics clinical application.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is partial structurtes sketch map of the present utility model.
Fig. 3 is sleeve of the present utility model (2) compound thread place structure for amplifying sketch map.
Fig. 4 is wrenching bar of the present utility model (1) head enlarged diagram.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
General pedicle nail spanner is made up of wrenching bar (1), sleeve (2), handgrip (3), collet head (4), turn (5), in the use, connecting rod (1) right-hand member head rhizoma sparganic place is connected with the quick change handle, left end U-shaped head is connected with spinal column nail U-shaped mouth, and sleeve (2) left end head threads is threaded hand steered handgrip (3) with spinal column nail adapter, the rotary quick change handle, make the spinal column nail be screwed into the requirements of operation position, implant spinal rod and pre-bending and be fixed to the requirements of operation position, realize the operation purpose.
Claims (3)
1. general pedicle nail spanner is made up of wrenching bar (1), sleeve (2), handgrip (3), collet head (4), turn (5), it is characterized in that: wrenching bar (1) right-hand member head has rhizoma sparganic interface and annular groove, be connected with the quick change handle, the left end head has thickness flat less than bar portion diameter, the shape that takes the shape of the letter U, the place is connected with spinal column nail U-shaped mouth; The design of sleeve (2) hollow structure, the right-hand member head has step, and there is cannelure inside, and the left end outer surface has oval through hole, and the left end head has compound thread.
2. general pedicle nail spanner according to claim 1, it is characterized in that described sleeve of the present utility model (2) left end screw thread adopts the compound thread form processing, screw thread feed point is identical, guarantee thread useful effect sections, the major thread bar can be crossed screw thread: B10, M10; The minor thread bar can be crossed screw thread: B9, M9 * 1, wherein B10 and M10 screw thread do not disturb mutually, separately corresponding female thread is screwed, can screw random length, minor thread then is directly to be worth at pitch and the end in conjunction with B9 and M9 * 1 screw thread, and screw thread is chosen in compromise, guarantee that threaded rod can screw 2 to 3 at least and buckle with the female thread of B9, M9 * 1, be 2P-3P, wherein P is pitch, and the minor thread bar does not influence holding of major thread pole pair B10, M10 screw thread and gets function.
3. general pedicle nail spanner according to claim 1 is characterized in that, described collet head (4) central through hole, and outer surface has reticulate pattern, is connected with sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320056923 CN203226891U (en) | 2013-02-01 | 2013-02-01 | General pedicle screw wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320056923 CN203226891U (en) | 2013-02-01 | 2013-02-01 | General pedicle screw wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203226891U true CN203226891U (en) | 2013-10-09 |
Family
ID=49283043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320056923 Expired - Lifetime CN203226891U (en) | 2013-02-01 | 2013-02-01 | General pedicle screw wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203226891U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018084886A1 (en) * | 2016-11-04 | 2018-05-11 | Ortiz Rene | Pedicle screw removal tool and method of use |
| CN111012472A (en) * | 2019-12-31 | 2020-04-17 | 浙江康慈医疗科技有限公司 | A go up nail spanner when being used for multiaxis pedicle of vertebral arch screw to implant |
| CN112315573A (en) * | 2020-11-09 | 2021-02-05 | 常州康鼎医疗器械有限公司 | Four-in-one nailing device and mounting method thereof |
| US11534223B2 (en) | 2016-11-04 | 2022-12-27 | Orthopedic Renovation Technologies, Llc | Pedicle screw removal tool and method of use |
-
2013
- 2013-02-01 CN CN 201320056923 patent/CN203226891U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018084886A1 (en) * | 2016-11-04 | 2018-05-11 | Ortiz Rene | Pedicle screw removal tool and method of use |
| US10820936B2 (en) | 2016-11-04 | 2020-11-03 | Orthopedic Renovation Technologies, Llc | Pedicle screw removal tool and method of use |
| US11534223B2 (en) | 2016-11-04 | 2022-12-27 | Orthopedic Renovation Technologies, Llc | Pedicle screw removal tool and method of use |
| CN111012472A (en) * | 2019-12-31 | 2020-04-17 | 浙江康慈医疗科技有限公司 | A go up nail spanner when being used for multiaxis pedicle of vertebral arch screw to implant |
| CN112315573A (en) * | 2020-11-09 | 2021-02-05 | 常州康鼎医疗器械有限公司 | Four-in-one nailing device and mounting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131009 |