CN204364113U - A kind of orthopaedics target drill - Google Patents
A kind of orthopaedics target drill Download PDFInfo
- Publication number
- CN204364113U CN204364113U CN201520008300.4U CN201520008300U CN204364113U CN 204364113 U CN204364113 U CN 204364113U CN 201520008300 U CN201520008300 U CN 201520008300U CN 204364113 U CN204364113 U CN 204364113U
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- CN
- China
- Prior art keywords
- drilling machine
- center
- pole
- lock screw
- trepanning drilling
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of orthopaedics target drill, by Hollow trepanning drilling machine, cannulated sleeve and center-pole composition, the head end of Hollow trepanning drilling machine is welded with annular cutter head, cannulated sleeve is arranged in Hollow trepanning drilling machine and with the afterbody of Hollow trepanning drilling machine and welds together, center-pole is located in cannulated sleeve and also freely can rotates at cannulated sleeve, the afterbody that spring is positioned at center-pole is provided with in cannulated sleeve, center-pole head end is six prisms, the afterbody of Hollow trepanning drilling machine has coupling bar, when using this utility model, by the coupling bar of Hollow trepanning drilling machine afterbody and electric device, six prisms of center-pole head end are withstood in the inner hexagonal hole of the lock screw head of a nail of internal fixtion blade plate, the annular cutter head of Hollow trepanning drilling machine front end is by saturating for the internal fixtion synthetism twist drill around lock screw, the lock screw head of a nail is separated with internal fixtion blade plate, then corresponding instrument is used lock screw to be screwed out, after all lock screw are taken out, internal fixtion blade plate just can take out smoothly.Avoid and take out lock screw and internal fixtion blade plate at need, the potential risk of existence and complication.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly a kind of orthopaedics target drill.
Background technology
Internal fixtion blade plate and lock screw system thereof are because of its distinctive biomechanical advantage, the high praise enjoying AO to organize and apply to orthopaedic trauma more and more, related complication after following its a large amount of abuse in addition and shortcoming, wherein major part and lock screw are taken out difficult relevant, include " cold welding " that screw socket damage, screw stripped thread and pinning threading dislocations cause etc.It is compare stubborn problem in bone surgery that lock screw takes out difficulty, if do not have suitable operation tool, operation cannot proceed.
Summary of the invention
The purpose of this utility model is the problem in order to solve lock screw and internal fixtion blade plate taking-up difficulty, and provides a kind of orthopaedics target drill.
This utility model is made up of Hollow trepanning drilling machine, cannulated sleeve and center-pole, the head end of Hollow trepanning drilling machine is welded with annular cutter head, cannulated sleeve is arranged in Hollow trepanning drilling machine and with the afterbody of Hollow trepanning drilling machine and welds together, cannulated sleeve and Hollow trepanning drilling machine concentric, center-pole is located in cannulated sleeve and also freely can rotates at cannulated sleeve, spring is provided with in cannulated sleeve, spring is positioned at the afterbody of center-pole, the front end of center-pole is stretched out from Hollow trepanning drilling machine, center-pole head end is six prisms, the afterbody of Hollow trepanning drilling machine has coupling bar, and described coupling bar is prism.
Work process of the present utility model:
When using this utility model, by the coupling bar of Hollow trepanning drilling machine afterbody and electric device, as electric drill or handheld electrical machinery connect, six prisms of center-pole head end are withstood in the inner hexagonal hole of the lock screw head of a nail of internal fixtion blade plate, supports location by spring; Start electric device and drive Hollow trepanning drilling machine quick rotation, the annular cutter head of Hollow trepanning drilling machine front end is by saturating for the internal fixtion synthetism twist drill around lock screw, the lock screw head of a nail is separated with internal fixtion blade plate, then corresponding instrument is used lock screw to be screwed out, after all lock screw are taken out, internal fixtion blade plate just can take out smoothly.
The beneficial effects of the utility model:
This utility model successfully can take out the lock screw of " stripped thread " or " cold welding ", and then can successfully internal fixtion blade plate be taken out, and avoids and takes out lock screw and internal fixtion blade plate at need, the potential risk of existence and complication.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model.
Detailed description of the invention
Refer to shown in Fig. 1, for embodiment of the present utility model, the present embodiment is by Hollow trepanning drilling machine 1, cannulated sleeve 2 and center-pole 3 form, the head end of Hollow trepanning drilling machine 1 is welded with annular cutter head 4, cannulated sleeve 2 to be arranged in Hollow trepanning drilling machine 1 and to weld together with the afterbody of Hollow trepanning drilling machine 1, cannulated sleeve 2 and Hollow trepanning drilling machine 1 concentric, center-pole 3 is located in cannulated sleeve 2 and also freely can rotates at cannulated sleeve 2, spring 5 is provided with in cannulated sleeve 2, spring 5 is positioned at the afterbody of center-pole 3, the front end of center-pole 3 is stretched out from Hollow trepanning drilling machine 1, center-pole 3 head end is six prisms 6, the afterbody of Hollow trepanning drilling machine 1 has coupling bar 7, described coupling bar 7 is prism.
Work process of the present utility model:
When using this utility model, by the coupling bar 7 of Hollow trepanning drilling machine 1 afterbody and electric device, as electric drill or handheld electrical machinery connect, six prisms 6 of center-pole 3 head end are withstood in the inner hexagonal hole of the lock screw head of a nail of internal fixtion blade plate, supports location by spring 5; Start electric device and drive Hollow trepanning drilling machine 1 quick rotation, the annular cutter head 4 of Hollow trepanning drilling machine 1 front end is by saturating for the internal fixtion synthetism twist drill around lock screw, the lock screw head of a nail is separated with internal fixtion blade plate, then corresponding instrument is used lock screw to be screwed out, after all lock screw are taken out, internal fixtion blade plate just can take out smoothly.
Claims (2)
1. an orthopaedics target drill, it is characterized in that: be by Hollow trepanning drilling machine (1), cannulated sleeve (2) and center-pole (3) composition, the head end of Hollow trepanning drilling machine (1) is welded with annular cutter head (4), cannulated sleeve (2) to be arranged in Hollow trepanning drilling machine (1) and to weld together with the afterbody of Hollow trepanning drilling machine (1), cannulated sleeve (2) and Hollow trepanning drilling machine (1) concentric, center-pole (3) is located in cannulated sleeve (2) and also freely can rotates in cannulated sleeve (2), spring (5) is provided with in cannulated sleeve (2), spring (5) is positioned at the afterbody of center-pole (3), the front end of center-pole (3) is stretched out from Hollow trepanning drilling machine (1), center-pole (3) head end is six prisms (6), the afterbody of Hollow trepanning drilling machine (1) has coupling bar (7).
2. a kind of orthopaedics target drill according to claim 1, is characterized in that: described coupling bar (7) is prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520008300.4U CN204364113U (en) | 2015-01-07 | 2015-01-07 | A kind of orthopaedics target drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520008300.4U CN204364113U (en) | 2015-01-07 | 2015-01-07 | A kind of orthopaedics target drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204364113U true CN204364113U (en) | 2015-06-03 |
Family
ID=53320373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520008300.4U Withdrawn - After Issue CN204364113U (en) | 2015-01-07 | 2015-01-07 | A kind of orthopaedics target drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204364113U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104490466A (en) * | 2015-01-07 | 2015-04-08 | 吉林大学 | Special orthopedic drill bit |
-
2015
- 2015-01-07 CN CN201520008300.4U patent/CN204364113U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104490466A (en) * | 2015-01-07 | 2015-04-08 | 吉林大学 | Special orthopedic drill bit |
| CN104490466B (en) * | 2015-01-07 | 2016-06-29 | 吉林大学 | A kind of orthopaedics target drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150603 Effective date of abandoning: 20160629 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |