CN202740073U - Adjustable orthopaedics drill bushing - Google Patents
Adjustable orthopaedics drill bushing Download PDFInfo
- Publication number
- CN202740073U CN202740073U CN 201220360399 CN201220360399U CN202740073U CN 202740073 U CN202740073 U CN 202740073U CN 201220360399 CN201220360399 CN 201220360399 CN 201220360399 U CN201220360399 U CN 201220360399U CN 202740073 U CN202740073 U CN 202740073U
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- CN
- China
- Prior art keywords
- bushing
- drill
- drill bushing
- locating
- fixing
- 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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Abstract
The utility model discloses an adjustable orthopaedics drill bushing which comprises a drill body, a fixing bushing fixed above the drill body, a locating bushing and a drill bushing body. The locating bushing and the drill bushing body are connected outside of the fixing bushing in sleeved mode. The locating bushing is in clearance fit with the fixing bushing, a bearing is arranged inside the locating bushing, the bearing is matched with the fixing bushing, outer threads are arranged on the locating bushing, inner threads are arranged on the drill bushing body, the drill bushing body is connected to the outside of the locating bushing in sleeved mode, and the outer threads are matched with the inner threads. The adjustable orthopaedics drill bushing has the advantages that firstly, the structure is simple; secondly, by means of adjusting relative position between the drill bushing body and the locating bushing, the length of an outer drill body exposed out of the drill bushing body can be changed so that the length of the bushing body can be controlled, harms to the soft tissue in the process of drilling holes in bones can be avoided, and therefore suffering of the patients can be lessened; thirdly, a handle is arranged on the drill bushing body, the drill bushing body is convenient to hold firmly; fourthly, the fixing bushing is fixed on the drill body through firmly connected bolts, and therefore the fixing bushing is firm and reliable.
Description
Technical field
This utility model relates to a kind of orthopaedics medical apparatus and instruments, particularly a kind of adjustable bone drill bushing.
Background technology
At present, in the orthopaedic medical treatment practice, it is a kind of common operation that skeleton is holed, and still the length of existing its drill body of drilling tool can not be regulated, thereby in the process to orthopaedics boring, easily damages near the soft tissue of skeleton, thereby strengthened patient's misery.
Summary of the invention
Problem to be solved in the utility model is: provide a kind of simple in structure, be convenient to regulate the adjustable bone drill bushing of drill body length.
In order to solve the problems of the technologies described above, adjustable bone drill bushing of the present utility model, comprise drill body, be fixed on drill body top fixed cover, be socketed in fixed cover outer positioning sleeve and drill bushing body, be matched in clearance between described positioning sleeve and the fixed cover, be provided with bearing in the described positioning sleeve, described bearing and fixed cover are complementary, described positioning sleeve is provided with external screw thread, described drill bushing body is provided with female thread, and described drill bushing body is socketed in the outside of positioning sleeve, and described external screw thread and female thread are complementary.
For the ease of controlling, adjustable bone drill bushing of the present utility model, described drill bushing body is provided with a handles.
For can be with firm being fixed on the drill body of fixed cover, adjustable bone drill bushing of the present utility model be provided with tight fixed bolt between described drill body and the fixed cover.
The beneficial effect that this utility model is obtained is: (1) is simple in structure; (2) relative position between adjustment drill bushing body and the positioning sleeve, can change the length of exposing this external drill body of drill bushing, thereby realize the control to drill body length, avoid in to the process of skeleton boring the soft tissue injury, thereby reduced patient's misery; (3) the drill bushing body is provided with a handles, the drill bushing body of being convenient to hold with a firm grip; (4) fixed cover is fixed on the drill body by tight fixed bolt, and is solid and reliable.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1, fixed cover, 2, positioning sleeve, 3, tight fixed bolt, 4, the drill bushing body, 5, drill body, 6, handle, 7, bearing.
The specific embodiment
As shown in Figure 1, adjustable bone drill bushing of the present utility model, comprise drill body 5, be fixed on drill body 5 tops fixed cover 1, be socketed in fixed cover 1 outer positioning sleeve 2 and drill bushing body 4, be matched in clearance between described positioning sleeve 2 and the fixed cover 1, be provided with bearing 7 in the described positioning sleeve 2, described bearing 7 is complementary with fixed cover 1, described positioning sleeve 1 is provided with external screw thread, described drill bushing body 4 is provided with female thread, described drill bushing body cover 4 is connected on the outside of positioning sleeve 2, and described external screw thread and female thread are complementary; Described drill bushing body 4 is provided with a handles 6; Be provided with tight fixed bolt 3 between described drill body 5 and the fixed cover 1.
In the time of concrete the use, the length of drill body 5 is adjusted the position of drill bushing body 4 on positioning sleeve 2 as required, can realize the control to drill body 5 length, when the length of drill body 5 is consistent with the length that needs, stop to adjust drill bushing body 4 and get final product, thereby very convenient.
Adjustable bone drill bushing of the present utility model owing to the control that can realize drill body 5 length, thereby in to skeleton boring, can be avoided near the soft tissue the skeleton is damaged, thereby reduce patient's misery.
Utility model is not limited to above-mentioned embodiment, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, all fall within the protection domain of the present utility model.
Claims (3)
1. adjustable bone drill bushing, it is characterized in that: comprise drill body (5), be fixed on the fixed cover (1) of drill body (5) top, be socketed in fixed cover (1) outer positioning sleeve (2) and drill bushing body (4), be matched in clearance between described positioning sleeve (2) and the fixed cover (1), be provided with bearing (7) in the described positioning sleeve (2), described bearing (7) is complementary with fixed cover (1), described positioning sleeve (1) is provided with external screw thread, described drill bushing body (4) is provided with female thread, described drill bushing body cover (4) is connected on the outside of positioning sleeve (2), and described external screw thread and female thread are complementary.
2. adjustable bone drill bushing according to claim 1, it is characterized in that: described drill bushing body (4) is provided with a handles (6).
3. adjustable bone drill bushing according to claim 1 and 2 is characterized in that: be provided with tight fixed bolt (3) between described drill body (5) and the fixed cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220360399 CN202740073U (en) | 2012-07-25 | 2012-07-25 | Adjustable orthopaedics drill bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220360399 CN202740073U (en) | 2012-07-25 | 2012-07-25 | Adjustable orthopaedics drill bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202740073U true CN202740073U (en) | 2013-02-20 |
Family
ID=47699532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220360399 Expired - Fee Related CN202740073U (en) | 2012-07-25 | 2012-07-25 | Adjustable orthopaedics drill bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202740073U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103284802A (en) * | 2013-06-04 | 2013-09-11 | 江苏百得医疗器械有限公司 | Special operating instrument set for bone grafting |
-
2012
- 2012-07-25 CN CN 201220360399 patent/CN202740073U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103284802A (en) * | 2013-06-04 | 2013-09-11 | 江苏百得医疗器械有限公司 | Special operating instrument set for bone grafting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130725 |