CN204468250U - A kind of hollow pressurization nail - Google Patents
A kind of hollow pressurization nail Download PDFInfo
- Publication number
- CN204468250U CN204468250U CN201520130291.6U CN201520130291U CN204468250U CN 204468250 U CN204468250 U CN 204468250U CN 201520130291 U CN201520130291 U CN 201520130291U CN 204468250 U CN204468250 U CN 204468250U
- Authority
- CN
- China
- Prior art keywords
- nut
- screw thread
- rivet nut
- pressurizing
- pitch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010079 rubber tapping Methods 0.000 claims abstract description 5
- 108010048734 sclerotin Proteins 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 241000755266 Kathetostoma giganteum Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Abstract
This utility model belongs to technical field of medical instruments, particularly relate to a kind of hollow pressurization nail, comprise the rivet nut of hollow, the head end of rivet nut is provided with self-tapping blade, the outer surface of rivet nut is provided with external screw thread, and the pitch near the screw thread of rivet nut head end is greater than the pitch of remainder screw thread; Rivet nut tailing screw flight is connected with a pressurizing nut, and the outer surface of pressurizing nut is provided with external screw thread, and on pressurizing nut, externally threaded pitch is less than the pitch near the screw thread of tail end in rivet nut; Pressurizing nut is truncated cone-shaped, and pressurizing nut end face is provided with first and screws adjustment structure, and rivet nut end face is provided with second and screws adjustment structure.This utility model produces pressurization by rivet nut and pressurizing nut to sclerotin, realizes pressurizeing flexibly, makes the reduction of the fracture thorough, is conducive to union of fracture.
Description
Technical field
This utility model belongs to technical field of medical instruments, particularly relates to a kind of hollow pressurization nail.
Background technology
In recent years, along with the development of communications, building industry etc., the Annual occurence rate of fracture is in rising trend, and be current topmost effective Therapeutic Method by surgical operation, the object of operation is normal sequence and curvature, height and the mobility of again recovering fracture, maintain original stability, and improve pressurized function of nervous system.Along with all kinds of new operation is theoretical and the improvement of technique for fixing, clinical operation method also constantly improves, and adopts nail internal fixation treatment fracture to be the most effective Therapeutic Method.
Medical hollow pressurization nail is generally used in orthopaedics internal fixation operation, by using pressurization principle, fractured bones block directly being fixed, engaging the broken ends of fractured bone or the osteotomy end of fracture, fixed effect is good, and cannulated compression screw has over one hundred year history as internal fixation apparatus.
Existing hollow pressurization nail, is integrated hollow-core construction, and nail outer surface is provided with the screw thread that pitch does not wait, along with nail enters sclerotin, due to pitch not etc., the speed that nail each several part enters sclerotin is different, to the different pressure that fracture face produces, to the pressurization of fracture face.But because existing nail is structure as a whole, screw thread is fixed, limited to the pressure effect in fracture face, when not reaching desirable pressure effect, then cannot adjust nail and continue pressurization, the reduction of the fracture just may be made not thorough, materially increase the time of union of fracture and the misery of patient.
Utility model content
The purpose of this utility model is to provide a kind of hollow pressurization nail, be intended to solve the pressure effect of existing hollow pressurization nail to fracture face limited, when not reaching desirable pressure effect, then cannot adjust nail and continue pressurization, the reduction of the fracture just may be made not thorough, materially increase the technical problem of the time of union of fracture and the misery of patient.
This utility model realizes like this, a kind of hollow pressurization nail, comprise the rivet nut of hollow, the head end of described rivet nut is provided with self-tapping blade, the outer surface of described rivet nut is provided with external screw thread, described external screw thread is full thread, and described external screw thread is greater than the pitch of remainder screw thread near the pitch of the screw thread of rivet nut head end;
Described rivet nut tailing screw flight is connected with a pressurizing nut, the female thread matched with screw thread in described rivet nut is provided with in the screw of described pressurizing nut, the outer surface of described pressurizing nut is provided with external screw thread, on described pressurizing nut, externally threaded rotation direction is identical with the rotation direction of screw thread in described rivet nut, and on described pressurizing nut, externally threaded pitch is less than the pitch near the screw thread of tail end in described rivet nut;
Described pressurizing nut is truncated cone, and described pressurizing nut is connected with rivet nut by female thread, and described pressurizing nut end face is provided with first and screws adjustment structure, and described rivet nut end face is provided with second and screws adjustment structure.
Improve as one, described first screws adjustment structure comprises the first groove that the instrument of being convenient to screws, and described second screws adjustment structure comprises the second groove that the instrument of being convenient to screws.
As improving further, described first groove and the second groove are in-line groove.
Owing to adopting technique scheme, the beneficial effects of the utility model are:
Because the outer surface of rivet nut is provided with external screw thread, external screw thread is greater than the pitch of remainder screw thread near the pitch of the screw thread of rivet nut head end, and be connected with pressurizing nut at rivet nut tailing screw flight, pressurizing nut is truncated cone, the outer surface of pressurizing nut is provided with external screw thread, on pressurizing nut, externally threaded pitch is less than the pitch near the screw thread of tail end in rivet nut, pressurizing nut end face is provided with first and screws adjustment structure, rivet nut end face is provided with second and screws adjustment structure, when rivet nut enters in sclerotin, because the pitch of screw thread in rivet nut is different, different pressure is produced to sclerotin, the pressing of fracture face is resetted, and pressurizing nut can be regulated further, sclerotin is pressurizeed further, realize pressurization flexibly, make the reduction of the fracture thorough, be conducive to union of fracture.
Screw adjustment structure because pressurizing nut end face is provided with first, rivet nut end face is provided with second and screws adjustment structure, and instrument easy to use screws and regulates pressurizing nut and rivet nut.
Because first screws adjustment structure and comprise the first groove that the instrument of being convenient to screws, second screws adjustment structure comprises the second groove that the instrument of being convenient to screws, and the instruments such as spanner easy to use or screwdriver screw and regulate rivet nut and pressurizing nut.
Because the first groove and the second groove are in-line groove, in-line spanner easy to use or Flathead screwdriver screw and regulate rivet nut and pressurizing nut.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment;
Fig. 2 is the internal structure schematic diagram of this utility model embodiment;
Fig. 3 is the tail end end face structure schematic diagram of this utility model embodiment;
Wherein, 1-rivet nut, 11-self-tapping blade, 2-pressurizing nut, 3-in-line groove.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain this utility model, and be not used in restriction this utility model.
As shown in Figure 1, Figure 2 with Fig. 3 jointly shown in, a kind of hollow pressurization nail, comprises the rivet nut 1 of hollow, the head end of rivet nut 1 is provided with self-tapping blade 11, the outer surface of rivet nut 1 is provided with external screw thread, and external screw thread is full thread, and external screw thread is greater than the pitch of remainder screw thread near the pitch of the screw thread of rivet nut 1 head end;
Rivet nut 1 tailing screw flight is connected with a pressurizing nut 2, the female thread matched with screw thread in rivet nut 1 is provided with in the screw of pressurizing nut 2, the outer surface of pressurizing nut 2 is provided with external screw thread, on pressurizing nut 2, externally threaded rotation direction is identical with the rotation direction of screw thread in rivet nut 1, and on pressurizing nut 2, externally threaded pitch is less than the pitch near the screw thread of tail end in rivet nut 1;
Pressurizing nut 2 is in truncated cone, and the tapering of pressurizing nut 2 can be arranged according to specific needs, and pressurizing nut 2 is connected with rivet nut 1 by female thread, and pressurizing nut 2 end face is provided with first and screws adjustment structure, and rivet nut 1 end face is provided with second and screws adjustment structure.
In the present embodiment, first screws adjustment structure comprises the first groove that the instrument of being convenient to screws, and second screws adjustment structure comprises the second groove that the instrument of being convenient to screws, and preferably, the first groove and the second groove are in-line groove 3.
The hollow pressurization nail that this utility model provides, comprise the rivet nut 1 of hollow, the outer surface of rivet nut 1 is provided with full thread, pitch near the screw thread of rivet nut 1 head end is greater than the pitch of the screw thread near rivet nut 1 tail end, and rivet nut 1 tailing screw flight connects pressurizing nut 2, the outer surface of pressurizing nut 2 is provided with external screw thread, and this externally threaded pitch is less than the pitch near the screw thread of tail end in rivet nut 1, is adapted at using in orthopaedics internal fixation operation.
In order to understand this utility model better, sketch use procedure of the present utility model: when specifically using, first hole on bone, then the rivet nut 1 with pressurizing nut 2 is screwed in by instrument, because the outer surface of rivet nut 1 is provided with external screw thread, and the pitch near the screw thread of rivet nut 1 head end is greater than the pitch of remainder screw thread, along with rivet nut 1 gos deep into sclerotin, different pressure is produced to sclerotin, fracture face is made mutually to extrude laminating, pressurizing nut 2 can be screwed further, because pressurizing nut 2 is truncated cone, along with pressurizing nut 2 gos deep into sclerotin, further pressure can be produced to sclerotin, realize pressurization flexibly, make the reduction of the fracture thorough, be conducive to union of fracture.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a hollow pressurization nail, comprises the rivet nut of hollow, it is characterized in that, the head end of described rivet nut is provided with self-tapping blade, the outer surface of described rivet nut is provided with external screw thread, and described external screw thread is full thread, and described external screw thread is greater than the pitch of remainder screw thread near the pitch of the screw thread of rivet nut head end;
Described rivet nut tailing screw flight is connected with a pressurizing nut, the female thread matched with screw thread in described rivet nut is provided with in the screw of described pressurizing nut, the outer surface of described pressurizing nut is provided with external screw thread, on described pressurizing nut, externally threaded rotation direction is identical with the rotation direction of screw thread in described rivet nut, and on described pressurizing nut, externally threaded pitch is less than the pitch near the screw thread of tail end in described rivet nut;
Described pressurizing nut is truncated cone, and described pressurizing nut is connected with rivet nut by female thread, and described pressurizing nut end face is provided with first and screws adjustment structure, and described rivet nut end face is provided with second and screws adjustment structure.
2. hollow pressurization nail according to claim 1, is characterized in that, described first screws adjustment structure comprises the first groove that the instrument of being convenient to screws, and described second screws adjustment structure comprises the second groove that the instrument of being convenient to screws.
3. hollow pressurization nail according to claim 2, is characterized in that, described first groove and the second groove are in-line groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520130291.6U CN204468250U (en) | 2015-03-06 | 2015-03-06 | A kind of hollow pressurization nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520130291.6U CN204468250U (en) | 2015-03-06 | 2015-03-06 | A kind of hollow pressurization nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204468250U true CN204468250U (en) | 2015-07-15 |
Family
ID=53623990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520130291.6U Expired - Fee Related CN204468250U (en) | 2015-03-06 | 2015-03-06 | A kind of hollow pressurization nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204468250U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109044515A (en) * | 2018-07-27 | 2018-12-21 | 张嘉 | A kind of repair of fractured bones system |
| CN112274236A (en) * | 2020-11-05 | 2021-01-29 | 孙金堂 | Assembled easily-detachable bone nail |
| CN113768602A (en) * | 2021-01-27 | 2021-12-10 | 陕西中保盛康医疗科技有限公司 | Bidirectional locking nail cap system |
-
2015
- 2015-03-06 CN CN201520130291.6U patent/CN204468250U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109044515A (en) * | 2018-07-27 | 2018-12-21 | 张嘉 | A kind of repair of fractured bones system |
| CN112274236A (en) * | 2020-11-05 | 2021-01-29 | 孙金堂 | Assembled easily-detachable bone nail |
| CN112274236B (en) * | 2020-11-05 | 2022-02-01 | 孙金堂 | Assembled easily-detachable bone nail |
| CN113768602A (en) * | 2021-01-27 | 2021-12-10 | 陕西中保盛康医疗科技有限公司 | Bidirectional locking nail cap system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200904 Address after: 261051 Tianjiacun Industrial Park, Xilibao Street Office, Kuiwen District, Weifang City, Shandong Province Patentee after: WEIFANG LIJING MEDICAL DEVICES Co.,Ltd. Address before: 261041, No. 933, Mao Zhuang village, Nanyuan street, Kuiwei District, Shandong, Weifang Patentee before: Hu Mingjun |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 |