CN206700224U - A kind of medical hollow forcing screw - Google Patents
A kind of medical hollow forcing screw Download PDFInfo
- Publication number
- CN206700224U CN206700224U CN201621376335.4U CN201621376335U CN206700224U CN 206700224 U CN206700224 U CN 206700224U CN 201621376335 U CN201621376335 U CN 201621376335U CN 206700224 U CN206700224 U CN 206700224U
- Authority
- CN
- China
- Prior art keywords
- screw
- stud
- screw thread
- gland
- medical hollow
- 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
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a kind of medical hollow forcing screw, including the first screw and the second screw, first tip of screw is fixedly connected with gland, the top of first screw is arranged to the second stud, the first stud is fixedly connected between second stud and gland, 3rd screw thread is installed in the side wall of the bolt slot, the outer wall of second screw is provided with the second screw thread, the crown center position of second screw is provided with cone tank, the top edge of second screw is provided with conical head, cambered surface screw thread is provided between the conical head and the second screw thread.The medical hollow forcing screw is rational in infrastructure, the taper slot structure being provided with the top of bolt can be that fastener cycle applies pressure so that connect between bone and more stablize, while the first screw can be separated from each other with the second screw, the service efficiency of screw is greatly improved, reduces medical treatment cost.
Description
Technical field
Technical field of medical instruments is the utility model is related to, specially a kind of medical hollow forcing screw.
Background technology
Existing Medical screw is generally integral type screw, and cost is high, and cost is higher, and simple in construction, can not have
The effective fixation completed in surgical procedure to bone of effect, has the few cases that bolt looseness situation can occur, and this comes to sufferer
Say and be likely to result in mortality consequence, so being badly in need of designing a kind of medical bolt that can stablize fixation.
Utility model content
The purpose of this utility model is to provide a kind of medical hollow forcing screw, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the utility model provides following technical scheme：A kind of medical hollow forcing screw, including the
One screw and the second screw, first tip of screw are fixedly connected with gland, and the top of first screw is arranged to
Two studs, are fixedly connected with the first stud between second stud and gland, the outer wall of second stud is provided with
One screw thread, the middle part of the gland are provided with plum blossom groove, and second screw is internally provided with bolt slot, the spiral shell
3rd screw thread is installed, the outer wall of second screw is provided with the second screw thread, the top of second screw in the side wall of croze
Portion centre position is provided with cone tank, and the top edge of second screw is provided with conical head, the conical head and the second spiral shell
Cambered surface screw thread is provided between line.
Preferably, second stud and bolt slot are connected by screw thread.
Preferably, first screw is flat head screw.
Preferably, the length of first stud is identical with the depth of bolt slot.
Compared with prior art, the beneficial effects of the utility model are：The medical hollow forcing screw is rational in infrastructure, in spiral shell
The taper slot structure being provided with the top of bolt can be that fastener cycle applies pressure so that connect between bone and more stablize, simultaneously
First screw can be separated from each other with the second screw, greatly improved the service efficiency of screw, reduced medical treatment cost.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model structure diagram；
Fig. 3 is the utility model structure diagram；
Fig. 4 is the utility model structure diagram；
Fig. 5 is the utility model structure diagram.
In figure：1 gland, 11 plum blossom grooves, 2 first screws, 21 first studs, 22 first screw threads, 23 second studs, 3
Two screws, 31 second screw threads, 32 cambered surface screw threads, 33 cone tanks, 34 conical heads, 35 bolt slots, 36 the 3rd screw threads.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-5 are referred to, the utility model provides a kind of technical scheme：A kind of medical hollow forcing screw, including first
The screw 3 of screw 2 and second, first screw 2 are flat head screw, ensure smoothly screw out after the second screw 3 is fastened
One screw 2, the end of the first screw 2 are fixedly connected with gland 1, and the top of first screw 2 is arranged to the second stud
23, the length of first stud 21 is identical with the depth of bolt slot 35, can ensure that the height between screw thread is connected, there is provided
More effective fastening effect, second stud 23 and bolt slot 35 are connected by screw thread, by screw the first screw 2 come
The tightening operation to the second screw 3 is completed, the first stud 21, institute are fixedly connected between second stud 23 and gland 1
The outer wall for stating the second stud 23 is provided with the first screw thread 22, and the middle part of the gland 1 is provided with plum blossom groove 11, and described
Two screws 3 are internally provided with bolt slot 35, and the 3rd screw thread 36, second screw are provided with the side wall of the bolt slot 35
3 outer wall is provided with the second screw thread 31, and the crown center position of second screw 3 is provided with cone tank 33, second spiral shell
The top edge of nail 3 is provided with conical head 34, and cambered surface screw thread 32 is provided between the screw thread 31 of conical head 34 and second.
Operation principle：In use, first the first screw 2 is screwed in the bolt slot 35 of second screw 3, then pass through the second spiral shell
Nail 3 is fastened into bone, due to being provided with cone tank 33 at the top of the second screw 3 so that is screwing in bone in the second screw 3
Fastening effect can be further functioned as when internal by the chamber pressure that cone tank 33 provides, the design of cambered surface screw thread 32 can also
The effect independently shot efficiently is played, is brought convenience for practical operation use, after terminal operation is completed, by the first screw
2 reversely rotate out bolt slot 35, because the top of the first screw 2 is cab-over design so that and it is more convenient in reverse screw out, together
When the second screw 3 can consolidate rest in bone and will not fall off and show, the second screw 3 in the design of this screw
It is able to can be circulated according to the second screw 3 of different operation fixed demand adaptation different length specifications, the first screw 2 of back-out
Utilize, greatly improve the service efficiency of Medical screw, reduce the use cost of medical equipment.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of medical hollow forcing screw, including the first screw (2) and the second screw (3), it is characterised in that：First spiral shell
Nail (2) end is fixedly connected with gland (1), and the top of first screw (2) is arranged to the second stud (23), and described second
The first stud (21) is fixedly connected between stud (23) and gland (1), the outer wall of second stud (23) is provided with
One screw thread (22), the middle part of the gland (1) are provided with plum blossom groove (11), and the inside of second screw (3) is set
There is bolt slot (35), the 3rd screw thread (36) is installed in the side wall of the bolt slot (35), the outer wall of second screw (3) is set
The second screw thread (31) is equipped with, the crown center position of second screw (3) is provided with cone tank (33), second screw
(3) top edge is provided with conical head (34), and cambered surface screw thread is provided between the conical head (34) and the second screw thread (31)
(32)。
A kind of 2. medical hollow forcing screw according to claim 1, it is characterised in that：Second stud (23) and spiral shell
Croze (35) is connected by screw thread.
A kind of 3. medical hollow forcing screw according to claim 1, it is characterised in that：First screw (2) is flat
Head screw.
A kind of 4. medical hollow forcing screw according to claim 1, it is characterised in that：The length of first stud (21)
Degree is identical with the depth of bolt slot (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621376335.4U CN206700224U (en) | 2016-12-14 | 2016-12-14 | A kind of medical hollow forcing screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621376335.4U CN206700224U (en) | 2016-12-14 | 2016-12-14 | A kind of medical hollow forcing screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206700224U true CN206700224U (en) | 2017-12-05 |
Family
ID=60471366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621376335.4U Expired - Fee Related CN206700224U (en) | 2016-12-14 | 2016-12-14 | A kind of medical hollow forcing screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206700224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021180076A1 (en) * | 2020-03-10 | 2021-09-16 | 昶盛(物料应用制品)有限公司 | Screw assembly for bone fixation, and bone fixation device |
-
2016
- 2016-12-14 CN CN201621376335.4U patent/CN206700224U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021180076A1 (en) * | 2020-03-10 | 2021-09-16 | 昶盛(物料应用制品)有限公司 | Screw assembly for bone fixation, and bone fixation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190130 Address after: 300 000 north of Guotai Road, Daqichang Town, Wuqing District, Tianjin Patentee after: Tianjin Kanger Medical Devices Co., Ltd. Address before: 301700 North of Guotai Road, Daqichang Town, Wuqing District, Tianjin Patentee before: Tianjin Kanglier Biotechnology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 Termination date: 20191214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |