CN205913388U - Pressurization hollow rivet - Google Patents
Pressurization hollow rivet Download PDFInfo
- Publication number
- CN205913388U CN205913388U CN201620621653.6U CN201620621653U CN205913388U CN 205913388 U CN205913388 U CN 205913388U CN 201620621653 U CN201620621653 U CN 201620621653U CN 205913388 U CN205913388 U CN 205913388U
- Authority
- CN
- China
- Prior art keywords
- nail rod
- screw
- nail
- thread
- nail pole
- 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
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- 208000031481 Pathologic Constriction Diseases 0.000 claims description 2
- 210000001215 vagina Anatomy 0.000 claims description 2
- 230000003750 conditioning effect Effects 0.000 abstract 1
- 230000011218 segmentation Effects 0.000 abstract 1
- 210000000689 upper leg Anatomy 0.000 description 5
- 210000004872 soft tissue Anatomy 0.000 description 4
- 210000002436 femur neck Anatomy 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 210000003275 diaphysis Anatomy 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 241000894007 species Species 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model provides a pressurization hollow rivet relates to medical equipment technical field. Including first nail pole and second nail pole, first nail pole and second nail pole are well casement structure, and first nail pole surface is equipped with first screw, and second nail pole surface is equipped with the second screw, and first screw pitch is lighter than the pitch of second screw, and first nail rod cover connects in second nail pole, and first nail pole distal end passes through the 3rd threaded connection in the first nail pole distal end with second nail pole near -end. The utility model discloses change traditional pressurization hollow rivet's a body structure into two segmentations, through the screw -thread fit between two ejector pins, not only can shorten two distances between the ejector pin through the screw in addition according to conditioning pressurization hollow rivet's the length of fracture, reach and carry out abundant pressor purpose to the fracture line.
Description
Technical field
This utility model is related to medical device technical field and in particular to a kind of pressurizing hollow screw.
Background technology
Development with social economy and the raising of social level, the mankind are just unprecedentedly paying close attention to the medical treatment ＆ health cause of itself.
Important foundation as the important means medical apparatus and instruments of modern medicine and ingredient, biomaterial is used for the diagnosis of disease
Promote with treatment, the reparation of histoorgan or function, so that the patient struggling in a large number at painful edge is rehabilitated.With aging
The step of society, old people's skeleton is fragile to cause fracture case to increase year by year, and the accident such as building industry, manufacturing industry, communications causes
Increase sharply fracture case and day.Fracture of femoral neck is clinically relatively conventional fracture species, is traditionally used for treating neck of femur
The pressurizing hollow screw of fracture, such as Chinese utility model patent (Authorization Notice No. cn201930067u, authorized announcement date
2011.08.17 pressurizing hollow screw disclosed in), including the rivet nut of hollow, the head end of rivet nut is self-tapping blade, outside the first section of rivet nut
Surface and rear outer surface are equipped with screw thread, and the pitch of screw thread set by rear outer surface is less than the spiral shell of screw thread set by first section outer surface
Away from the stage casing side wall of rivet nut is provided with some through holes, and described fracture two ends are fixedly connected on by the hollow pin structure of this invention
Together, the effect of simple fixing fracture can only be played, fracture line sufficiently can not be pressurizeed.
Utility model content
For solve above-mentioned technical problem, this utility model provide a kind of can at any time fracture line fully be pressurizeed plus
Pressure hollow nail.
This utility model adopts the following technical scheme that
A kind of pressurizing hollow screw, including the first nail rod and the second nail rod, described first nail rod and described second nail rod are
Hollow structure, described first nail rod outer surface is provided with the first screw thread, and described second nail rod outer surface is provided with the second screw thread, described
First thread pitch is less than the pitch of the second screw thread, and described first nail rod is socketed on the second nail rod, described first nail rod far-end with
Second nail rod is threaded proximally by the 3rd in the first nail rod far-end, and this utility model is by the integrative-structure of pressurizing hollow screw
It is changed to two-part, by the screw thread cooperation between two push rods, pressurizing hollow screw not only can be adjusted according to the situation of fracture
Length, and the distance between two push rods can be shortened by screw thread, reach the purpose that fracture line is fully pressurizeed.
Preferably, described first screw thread is consistent with the second hand of thread spiral, and described 3rd hand of thread spiral is first
Screw thread and the opposite direction of the second hand of thread spiral, when this structure regulation the second push rod pressurizes to fracture line, due to thread helix
In opposite direction, do not interfere with the first push rod and the fixing intensity of the second push rod.
Preferably, also include tail cap, described tail cap is threadingly attached to the first nail rod near-end, and described tail cap periphery is complete
Screw thread, and matching with the 4th screw thread in the first nail rod near-end, described 4th hand of thread spiral and the first thread helix side
To consistent, described tail cap is provided with soket head cap screw head, and tail cap can effectively prevent soft tissue from growing into the hollow die cavity of the first nail rod
Interior.
Preferably, the far-end of described second nail rod is self-tapping blade, more easily squeezes into the second nail rod in femur.
Preferably, the near-end of described second nail rod has yi word pattern or cruciform groove, the convenient sky passing through the first nail rod
Cardioid chamber is adjusted to the second nail rod.
Advantage of the present utility model:
1) pressurizing hollow screw being traditionally used for treating fracture of femoral neck is structure as a whole, and fracture two ends are fixedly connected on one
Rise, the effect of simple fixing fracture can only be played, the integrative-structure of pressurizing hollow screw is changed to two-part, leads to by this utility model
Cross the screw thread cooperation between two push rods, the length of pressurizing hollow screw not only can be adjusted according to the situation of fracture, and permissible
The distance between two push rods are shortened by screw thread, reaches the purpose that fracture line is pressurizeed.
2) hand of thread spiral that this utility model is used for adjusting is contrary with the hand of spiral being fixed in femur, this structure
When adjusting the second push rod fracture line being pressurizeed, because hand of thread spiral is contrary, do not interfere with the first push rod and the second push rod
Fixing intensity.
3) this utility model is additionally provided with tail cap, can effectively prevent soft tissue from growing into the hollow type intracavity of the first nail rod.
4) the hollow compression pin structure that this utility model provides, can prevent head of screw from exposing, effectively prevent head of screw
The soft tissue of diaphysis is interfered.
Brief description
Accompanying drawing is used for providing further understanding to of the present utility model, and constitutes a part for description, with this practicality
New embodiment is used for explaining this utility model together, does not constitute to restriction of the present utility model.In the accompanying drawings:
Fig. 1 is structural representation of the present utility model.
In figure is labeled as: 1, the first nail rod；2nd, the second nail rod；3rd, the first screw thread；4th, the second screw thread；5th, the 3rd screw thread；6、
4th screw thread；7th, tail cap；8th, soket head cap screw head；9th, self-tapping blade；10th, groove.
Specific embodiment
Preferred implementation of the present utility model is described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of pressurizing hollow screw of the present utility model, including the first nail rod 1 and the second nail rod 2, the first nail
Bar 1 and the second nail rod 2 are hollow structure, and the first nail rod 1 outer surface is provided with the first screw thread 3, and the second nail rod 2 outer surface is provided with
Second screw thread 4, the first screw thread 3 pitch is less than the pitch of the second screw thread 4, and the first nail rod 1 is socketed on the second nail rod 2, the first nail rod 1
Far-end is connected proximally by the 3rd screw thread 5 in the first nail rod 1 far-end with the second nail rod 2, and this utility model is by pressurizing hollow screw
Integrative-structure be changed to two-part, by the cooperation of screw thread between two push rods, not only can according to the situation adjustment of fracture plus
The length of pressure hollow nail, and the distance between two push rods can be shortened by screw thread, reach and fracture line is carried out fully add
The purpose of pressure.
First screw thread 3 is consistent with the second screw thread 4 hand of spiral, and the 3rd screw thread 5 hand of spiral is the first screw thread 3 and the second spiral shell
The opposite direction of stricture of vagina 4 hand of spiral, when this structure regulation the second push rod 2 pressurizes to fracture line, because hand of thread spiral is contrary, no
The first push rod 1 and the fixing intensity of the second push rod 2 can be affected.
Also include tail cap 7, tail cap 7 is connected to the first nail rod 1 near-end, tail cap 7 periphery be full thread, and with the first nail rod 1
The 4th screw thread 6 in near-end matches, and the 4th screw thread 6 hand of spiral is consistent with the first screw thread 3 hand of spiral, and tail cap 7 is provided with interior
Hex screw head 8, tail cap 7 can effectively prevent soft tissue from growing into the hollow type intracavity of the first nail rod 1.
The far-end of the second nail rod 2 is self-tapping blade 9, more easily squeezes into the second nail rod 2 in femur.
The near-end of the second nail rod 2 has yi word pattern or cruciform groove 10, the convenient hollow die cavity pair passing through the first nail rod 1
Second nail rod 2 is adjusted.
During operation, first guide pin is penetrated from femur, reinstall this utility model, the self-tapping blade 9 of its second nail rod 2 far-end
Shoot femoral head far-end, the first nail rod 1 is fixed on femoral head near-end, the second nail rod 2 and the first nail rod 1 tightened by groove 10,
Fracture line is fully pressurizeed, finally tightens tail cap 7, complete the installation of this utility model pressurizing hollow screw, the later stage can turn on tail cap
7, it is reached by the 3rd screw thread 5 and adjusts the second nail rod 2 and the first nail rod 1, adjust the biasing strength to fracture line.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, although ginseng
According to previous embodiment, this utility model is described in detail, for a person skilled in the art, it is still permissible
Technical scheme described in foregoing embodiments is modified, or equivalent is carried out to wherein some technical characteristics.All
Within spirit of the present utility model and principle, any modification, equivalent substitution and improvement made etc., should be included in this practicality
Within new protection domain.
Claims (5)
1. a kind of pressurizing hollow screw it is characterised in that: include the first nail rod and the second nail rod, described first nail rod and described second
Nail rod is hollow structure, and described first nail rod outer surface is provided with the first screw thread, and described second nail rod outer surface is provided with second
Screw thread, described first thread pitch is less than the pitch of the second screw thread, and described first nail rod is socketed on the second nail rod, described first nail
Bar far-end is threadeded proximally by the 3rd in the first nail rod far-end with the second nail rod.
2. a kind of pressurizing hollow screw according to claim 1 it is characterised in that: described first screw thread and the second thread helix
Direction is consistent, and described 3rd hand of thread spiral is the first screw thread and the opposite direction of the second hand of thread spiral.
3. a kind of pressurizing hollow screw according to claim 1 it is characterised in that: also include tail cap, described tail cap pass through spiral shell
Stricture of vagina is connected to the first nail rod near-end, and described tail cap periphery is full thread, and matches with the 4th screw thread in the first nail rod near-end,
Described 4th hand of thread spiral is consistent with the first hand of thread spiral, and described tail cap is provided with soket head cap screw head.
4. a kind of pressurizing hollow screw according to claim 1 it is characterised in that: the far-end of described second nail rod be self tapping sword
Head.
5. a kind of pressurizing hollow screw according to claim 1 it is characterised in that: the near-end of described second nail rod has a word
Type or cruciform groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620621653.6U CN205913388U (en) | 2016-06-22 | 2016-06-22 | Pressurization hollow rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620621653.6U CN205913388U (en) | 2016-06-22 | 2016-06-22 | Pressurization hollow rivet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205913388U true CN205913388U (en) | 2017-02-01 |
Family
ID=57877098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620621653.6U Expired - Fee Related CN205913388U (en) | 2016-06-22 | 2016-06-22 | Pressurization hollow rivet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205913388U (en) |
Cited By (2)
| 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 |
| CN112206047A (en) * | 2020-10-09 | 2021-01-12 | 厦门中科兴医疗器械有限公司 | Dynamic hip joint combined pressurization fixing system |
-
2016
- 2016-06-22 CN CN201620621653.6U patent/CN205913388U/en not_active Expired - Fee Related
Cited By (2)
| 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 |
| CN112206047A (en) * | 2020-10-09 | 2021-01-12 | 厦门中科兴医疗器械有限公司 | Dynamic hip joint combined pressurization fixing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215600 Jinnan Road, Jinfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province (A22, 26, Jinfeng Science and Technology Venture Park) Patentee after: SUZHOU GEMMED MEDICAL INSTRUMENT CO.,LTD. Address before: 215600 Jinnan Road, Jinfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province (A22, 26, Jinfeng Science and Technology Venture Park) Patentee before: SUZHOU GEMMED MEDICAL INSTRUMENT CO.,LTD. |
|
| 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: 20170201 |