CN204500932U - New bone cement screw - Google Patents
New bone cement screw Download PDFInfo
- Publication number
- CN204500932U CN204500932U CN201420842911.4U CN201420842911U CN204500932U CN 204500932 U CN204500932 U CN 204500932U CN 201420842911 U CN201420842911 U CN 201420842911U CN 204500932 U CN204500932 U CN 204500932U
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- screw
- bone cement
- rivet nut
- ailhead
- armed
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Abstract
This utility model relates to a kind of new bone cement screw, belongs to medical instruments field, is applicable to the transformation of osteoporotic spinal column, slippage, fracture, deformity, tumor and revision procedure etc.New bone cement screw is made up of plug screw (1) and long-armed U-shaped pedicle of vertebral arch rivet nut (2), it is characterized in that: plug screw (1) inside is six square grooves (3), and be convenient to apparatus and hold and get, there is screw thread (4) outside; Long-armed U-shaped pedicle of vertebral arch rivet nut (2) ailhead position U-lag (5) facilitates inserting of pitman, inner screw thread (6) can make plug screw (1) screw in, there is disconnected arm groove (7) ailhead middle part, screw thread (9) is had outside rivet nut, rivet nut hollow (10), four oval through holes (11) side by side in rivet nut, bone cement is injected in vertebral body by this hole.First choose entry point during operation, prepare nail road, carry out tapping, insert new bone cement screw with special equipment, inject bone cement, strengthen resisting pull out forces, finally carry out operation and fix and post surgery treatment.
Description
Technical field
This utility model relates to a kind of new bone cement screw, belongs to medical instruments field, is applicable to the transformation of osteoporotic spinal column, slippage, fracture, deformity, tumor and revision procedure etc.
Background technology
Along with increasingly sharpening of China's aged tendency of population, increasing sufferers of osteoporosis face needs to be fixed operation because of spinal disease.But osteoporosis has a strong impact on the bond strength of nail bone interface, makes the hold of screw decline, usually causes screw loosening, exits.Therefore, how effectively improve the stability of screw under osteoporosis condition, prevent screw loosening from having become a spinal surgery difficult problem urgently to be resolved hurrily.Existing many companies set about development and are applicable to osteoporotic screw both at home and abroad, and on this basis, a kind of new bone cement screw of my company's development, is applicable to osteoporosis operation etc.
Summary of the invention
The purpose of this utility model is: provide a kind of new bone cement screw being applicable to osteoporosis.
The technical solution of the utility model is as follows:
This utility model is made up of plug screw 1 and long-armed U-shaped pedicle of vertebral arch rivet nut 2, it is characterized in that: plug screw 1 inside is six square grooves 3, and be convenient to apparatus and hold and get, there is screw thread 4 outside, can match with long-armed U-shaped pedicle of vertebral arch rivet nut 2, long-armed U-shaped pedicle of vertebral arch rivet nut 2 ailhead is arc, avoid implanting and damage is caused to human body, ailhead position U-lag 5 facilitates inserting of pitman, inner screw thread 6 can make plug screw 1 screw in, the disconnected arm groove 7 of ailhead middle part can make ailhead upper-end part of driving fracture, the recessed position 8 of convex shape is similar to outside ailhead, be convenient to apparatus hold and get, screw thread 9 is had outside rivet nut, rivet nut hollow 10, can insert under guide pin guides, bone cement passage, four oval through holes 11 side by side in rivet nut, bone cement is injected in vertebral body by this hole, verify by experiment, the arrangement mode of slotted hole make bone cement evenly be distributed in vertebral body.
By preoperative imaging examination, the diagnosis such as row x-ray, CT examination patient condition, determine the surgery location of patient and implement operation, first choose entry point, prepare nail road, carry out tapping, new bone cement screw is inserted with special equipment, inject bone cement by new bone cement screw, increase the stability of grappling, confirm final position.This utility model novel in structural design, practicality, safety, operation technique simply, can maintain enough mechanical strengths, be suitable for Orthopedic Clinical and apply in human body.
This utility model has the following advantages:
1. hollow structure, can insert vertebral body, improve and implant accuracy under guide pin guides;
2. new bone cement screw four slotted holes side by side can make bone cement enter vertebral body uniformly, increase the stability of grappling;
3. increase the bond strength of nail bone interface, improve the hold of screw, improve the stability of screw, reduce osteoporosis to the risk brought of performing the operation.
Accompanying drawing explanation
Fig. 1 is the structure chart of the new bone cement screw of this utility model.
Fig. 2 is the structure chart of this utility model plug screw 1.
Fig. 3 is the structure chart of this utility model long-armed U-shaped pedicle of vertebral arch rivet nut 2.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The first step is by preoperative imaging examination, and the diagnosis such as row x-ray, CT examination patient condition, determines the surgery location of patient and operate in fact;
Second step chooses entry point, and entry point prepares;
3rd step uses special equipment to carry out tapping;
4th step inserts long-armed U-shaped pedicle of vertebral arch rivet nut 2 under the guiding of guide pin;
5th step injects bone cement by new bone cement screw, strengthens resisting pull out forces;
6th step is inserted pitman and is resetted, and screws in plug screw 1 pressurization locking, the upper end of the long-armed U-shaped pedicle of vertebral arch rivet nut 2 that finally fractures;
7th step is carried out operation and is fixed and post surgery treatment.
Claims (3)
1. new bone cement screw, is characterized in that: be made up of plug screw (1) and long-armed U-shaped pedicle of vertebral arch rivet nut (2), wherein: described plug screw (1) inside is six square grooves (3), is convenient to apparatus and holds and get; Described long-armed U-shaped pedicle of vertebral arch rivet nut (2) ailhead is arc, avoid implanting and damage is caused to human body, ailhead position U-lag (5) facilitates inserting of pitman, inner screw thread (6) can make plug screw (1) screw in, the disconnected arm groove (7) of ailhead middle part can make ailhead upper-end part of driving fracture, the recessed position (8) of convex shape is similar to outside ailhead, be convenient to apparatus hold and get, screw thread (9) is had, four oval through holes (11) side by side in rivet nut outside rivet nut.
2. new bone cement screw according to claim 1, is characterized in that: there is screw thread (4) described plug screw (1) outside, can match with long-armed U-shaped pedicle of vertebral arch rivet nut (2).
3. new bone cement screw according to claim 1, it is characterized in that: described long-armed U-shaped pedicle of vertebral arch rivet nut (2) rivet nut hollow (10), can insert under guide pin guides, bone cement passage, four oval through holes (11) side by side in rivet nut, bone cement is injected in vertebral body by this hole, verifies by experiment, the arrangement mode of slotted hole make bone cement evenly be distributed in vertebral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420842911.4U CN204500932U (en) | 2014-12-29 | 2014-12-29 | New bone cement screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420842911.4U CN204500932U (en) | 2014-12-29 | 2014-12-29 | New bone cement screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204500932U true CN204500932U (en) | 2015-07-29 |
Family
ID=53698938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420842911.4U Active CN204500932U (en) | 2014-12-29 | 2014-12-29 | New bone cement screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204500932U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725941A (en) * | 2017-02-24 | 2017-05-31 | 徐斌 | Fixed planting body of taking root can be irrigated |
| CN107080582A (en) * | 2016-02-16 | 2017-08-22 | 宋若怡 | Flexible spinal fixed system and pressure-adjustable hold-down bars |
| CN108606825A (en) * | 2016-12-12 | 2018-10-02 | 创生医疗器械（中国）有限公司 | A kind of osteoporosis pedicle screw |
-
2014
- 2014-12-29 CN CN201420842911.4U patent/CN204500932U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107080582A (en) * | 2016-02-16 | 2017-08-22 | 宋若怡 | Flexible spinal fixed system and pressure-adjustable hold-down bars |
| CN107080582B (en) * | 2016-02-16 | 2020-08-11 | 宋若怡 | Elastic spine fixing system and pressure-adjustable fixing rod |
| CN108606825A (en) * | 2016-12-12 | 2018-10-02 | 创生医疗器械（中国）有限公司 | A kind of osteoporosis pedicle screw |
| CN106725941A (en) * | 2017-02-24 | 2017-05-31 | 徐斌 | Fixed planting body of taking root can be irrigated |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160218 Address after: 101204 West Beijing District of Pinggu City Mafang Industrial Zone No. 50 Patentee after: Hu Huanyu Address before: 101204 West Beijing District of Pinggu City Mafang Industrial Zone No. 50 Patentee before: Beijing Fule Science & Technology Development Co., Ltd. Patentee before: Hu Huanyu |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20210111 Address after: 101204 West Beijing District of Pinggu City Mafang Industrial Zone No. 50 Patentee after: BEIJING FULE SCIENCE & TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 101204 West Beijing District of Pinggu City Mafang Industrial Zone No. 50 Patentee before: Hu Huanyu |
|
| TR01 | Transfer of patent right |