CN105640639A - Cannulated compression screw structure - Google Patents
Cannulated compression screw structure Download PDFInfo
- Publication number
- CN105640639A CN105640639A CN201410639117.4A CN201410639117A CN105640639A CN 105640639 A CN105640639 A CN 105640639A CN 201410639117 A CN201410639117 A CN 201410639117A CN 105640639 A CN105640639 A CN 105640639A
- Authority
- CN
- China
- Prior art keywords
- screw
- hollow screw
- pressurizing hollow
- pressurizing
- screw head
- 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.)
- Pending
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Abstract
The invention provides a cannulated compression screw structure which prevents a screw head from exposing and effectively prevents the screw head from interfering a soft tissue of a bone body, and especially when the screw is used on an articular surface, the structure prevents the screw head from impacting the articular surface or interfering surrounding soft tissues when a joint moves. The structure comprises a cannulated compression screw body. The cannulated compression screw is internally provided with a hole. The structure is characterized in that the periphery of the cannulated compression screw body is a full thread structure, and the cannulated compression screw is internally provided with a screw head portion.
Description
Technical field
The present invention relates to the technical field of clinical medicine instruments decided at the higher level but not officially announced, it is specifically related to a kind of pressurizing hollow screw structure.
Background technology
In clinical medicine, in medical treatment fracture or carry out merging, bone-culting operation time, usually screw is adopted to be fixed by hone lamella, and when adopting guide pin in screw, hollow structure to be made by screw, existing hollow nail is due to the screw head for tightening screw, after hone lamella is fixed by screw, it is exposed at outside screw head outside hone lamella, the soft tissue of bone body can be caused interference by screw head, particularly articulum uses screw, when joint motion, can be caused by articulum and clashes into or soft tissue around is produced interference.
Summary of the invention
For the problems referred to above, the present invention provides a kind of pressurizing hollow screw structure, it is possible to prevent screw head to expose, effectively prevent screw head and the soft tissue of bone body is caused interference, particularly use screw at articulum, avoiding when joint motion, articulum is caused and clashes into or soft tissue around is produced interference by screw head.
Its technical scheme is such: a kind of pressurizing hollow screw structure, it comprises pressurizing hollow screw body, it is provided with through hole in described pressurizing hollow screw, it is characterised in that: described pressurizing hollow screw external week is perfect thread structure, is provided with screw head in described pressurizing hollow screw body.
It is characterised in that further: described screw head is interior hexagonal structure; Described pressurizing hollow screw body is tapered; Described pressurizing hollow screw extracorporeal thread is gradient pitch structure, and screw tip is wide screw thread; Described screw tip is provided with cutting edge.
In the said structure of the present invention, pressurizing hollow screw external week is perfect thread structure, it is provided with screw head in pressurizing hollow screw body, screw is undertaken tightening, relaxing by the screw head of pressurizing hollow screw body inside, owing to pressurizing hollow screw external week is perfect thread structure, effectively prevent screw head outside being exposed at hone lamella outside avoiding screw head and the soft tissue of bone body is caused interference, particularly use screw at articulum, when joint motion, avoid screw head and articulum is caused shock or soft tissue around is produced interference.
Accompanying drawing explanation
Fig. 1 is pressurizing hollow screw structure sectional view of the present invention;
Fig. 2 is pressurizing hollow screw head construction of the present invention.
Embodiment
See Fig. 1, a kind of pressurizing hollow screw structure, it comprises pressurizing hollow screw body 1, through hole 2 it is provided with in pressurizing hollow screw 1, pressurizing hollow screw body 1 periphery is perfect thread structure, screw head 3 it is provided with in pressurizing hollow screw body 1, owing to pressurizing hollow screw external week is perfect thread structure, effectively prevent screw head outside being exposed at hone lamella outside avoiding screw head and the soft tissue of bone body is caused interference, particularly use screw at articulum, when joint motion, avoid screw head and articulum is caused shock or soft tissue around is produced interference.
Screw head 3 is interior hexagonal structure, ensure that the versatility that screw operates.
Pressurizing hollow screw body 1 is tapered, during screw placement, both sides, hole on hone lamella is produced pressure, ensure that hone lamella is installed stable, prevents coming off of hone lamella.
Pressurizing hollow screw body 1 outside screw is gradient pitch structure, and screw tip 4 is wide screw thread, makes the design of nail tip part width screw thread make screw front end when being screwed into enter than rear end faster, therefore sclerite is produced pressurization effect, more utilize the combination of sclerite.
Seeing Fig. 2, screw tip 4 is provided with cutting edge 5, screw placement of being more convenient for.
The present invention be medical treatment fracture or carry out merging, bone-culting operation provide a kind of simple, accurately, solution reliably, make Minimally Invasive Surgery become possibility.
Claims (5)
1. a pressurizing hollow screw structure, it comprises pressurizing hollow screw body, is provided with through hole in described pressurizing hollow screw, it is characterised in that: described pressurizing hollow screw external week is perfect thread structure, is provided with screw head in described pressurizing hollow screw body.
2. a kind of pressurizing hollow screw structure according to claim 1, it is characterised in that: described screw head is interior hexagonal structure.
3. a kind of pressurizing hollow screw structure according to claim 1, it is characterised in that: described pressurizing hollow screw body is tapered.
4. a kind of pressurizing hollow screw structure according to claim 1, it is characterised in that: described pressurizing hollow screw extracorporeal thread is gradient pitch structure, and screw tip is wide screw thread.
5. according to the arbitrary described a kind of pressurizing hollow screw structure of claim 1-4, it is characterised in that: screw tip is provided with cutting edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410639117.4A CN105640639A (en) | 2014-11-13 | 2014-11-13 | Cannulated compression screw structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410639117.4A CN105640639A (en) | 2014-11-13 | 2014-11-13 | Cannulated compression screw structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105640639A true CN105640639A (en) | 2016-06-08 |
Family
ID=56479351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410639117.4A Pending CN105640639A (en) | 2014-11-13 | 2014-11-13 | Cannulated compression screw structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105640639A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108158644A (en) * | 2017-12-29 | 2018-06-15 | 创辉医疗器械江苏有限公司 | A kind of hollow intramedullary nail |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2629661Y (en) * | 2003-06-20 | 2004-08-04 | 殷天樵 | Head-free pressurizing screw |
| CN103083079A (en) * | 2011-11-04 | 2013-05-08 | 无锡世一电力机械设备有限公司 | Locking combination screw system |
| CN202960741U (en) * | 2012-12-21 | 2013-06-05 | 李书凡 | Countersunk forcing bone screw |
| CN204260822U (en) * | 2014-11-13 | 2015-04-15 | 无锡市闻泰百得医疗器械有限公司 | Hollow compression pin structure |
-
2014
- 2014-11-13 CN CN201410639117.4A patent/CN105640639A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2629661Y (en) * | 2003-06-20 | 2004-08-04 | 殷天樵 | Head-free pressurizing screw |
| CN103083079A (en) * | 2011-11-04 | 2013-05-08 | 无锡世一电力机械设备有限公司 | Locking combination screw system |
| CN202960741U (en) * | 2012-12-21 | 2013-06-05 | 李书凡 | Countersunk forcing bone screw |
| CN204260822U (en) * | 2014-11-13 | 2015-04-15 | 无锡市闻泰百得医疗器械有限公司 | Hollow compression pin structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108158644A (en) * | 2017-12-29 | 2018-06-15 | 创辉医疗器械江苏有限公司 | A kind of hollow intramedullary nail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160608 |