CN203749496U - Hollow bone drill bit - Google Patents
Hollow bone drill bit Download PDFInfo
- Publication number
- CN203749496U CN203749496U CN201420150016.6U CN201420150016U CN203749496U CN 203749496 U CN203749496 U CN 203749496U CN 201420150016 U CN201420150016 U CN 201420150016U CN 203749496 U CN203749496 U CN 203749496U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- drill
- storage box
- drilling rod
- drill stem
- 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
Abstract
The utility model relates to a hollow bone drill bit. The bone drill bit comprises a drill stem and a drill bit, wherein the front part of the drill stem and the drill bit are integrally connected to form a hollow cylindrical structure, the rear part of the drill stem is provided with a cylindrical storage box of which diameter is greater than the drill stem, and the storage box is of a dual spiral wire connecting structure and the rear end of the storage box is fixedly connected with a drill stem chuck coaxial to the drill stem; the front end plane of the drill bit is provided tooth peaks, the tooth peaks are arranged in an umbrella way, and through holes are formed in the centers of the tooth peaks; the diameter of the periphery of each tooth peak is slightly greater than the outer diameter of the drill stem, and the inner diameter of the inner circumference of each tooth peak is shorter than that of the inner cavity of the drill stem. The bone drill bit provided by the utility model is of a hollow structure, and the drill stem is connected with the storage box, the generated bone debris can enter the storage box through the inner cavity of the drill stem at any moment, can not overflow, and can be taken out along with the drill bit after a hole is drilled, therefore the debridement process of the surgery can be greatly reduced.
Description
Technical field
This utility model relates to medical apparatus and instruments, is specially a kind of hollow bone drill bit.
No matter be Manual bone drill or electric bone drill, mostly adopt spiral bit, the problem of existence is in the time of boring, to produce many bone bits, and these bone bits are free in hole and in unlimited surrounding tissue, clear up trouble, being retained in operation intracavity also can affect the healing of tissue.
Summary of the invention
The purpose of this utility model is exactly the defect that overcomes existing bone drill bit, and a kind of bone drill bit of central hole structure is provided, and in the time of boring, the bone bits of generation can be taken out of automatically with drill bit.
The technical solution of the utility model is as follows: a kind of hollow bone drill bit, comprise drilling rod and drill bit, drilling rod is anterior to be connected as a single entity with drill bit, for hollow cylinder structure, drilling rod rear portion is the cylinder storage box that connected diameter is greater than drilling rod, storage box is the two taenidium connecting structures that close, and the rear end of storage box is fixedly connected with the drill adapter coaxial with drilling rod; The front end face of drill bit is the tooth cutting edge of a knife or a sword that centre has the umbrella of through hole to arrange, and the outer circumference diameter of tooth cutting edge of a knife or a sword is a bit larger tham the overall diameter of drilling rod, and interior all diameters are less than drilling rod intracavity diameter.
Described tooth cutting edge of a knife or a sword end face is high outside and low outside taper.
The upper side of described cylinder storage box is provided with passage.
Use, dismantle parcel tray the bone bits in closing and in drilling rod hollow cavity are rinsed out.
Because the design's bone drill bit is hollow structure, and on drilling rod, there is the parcel tray of connection, make in the time carrying out bone drilling, the bone bits that produce can enter into parcel tray by drilling rod inner chamber at any time, the bone bits that produce can be not excessive, having bored hole can take out in the lump with drill bit, can greatly reduce the debridement process of operation.
Brief description of the drawings
Fig. 1 is that this utility model embodiment master looks cutaway view;
Fig. 2 is the bit part enlarged drawing in Fig. 1;
Fig. 3 is the design's drill bit sectional schematic diagram;
Fig. 4 is the top view of this utility model embodiment.
In figure, 1. drill bit, 2. drilling rod, 3. storage box, 4. screw junction, 5. dop, passage, 7. tooth cutting edge of a knife or a sword.
Detailed description of the invention
A kind of hollow bone drill bit, comprise drilling rod 2 and drill bit 1, drilling rod 2 is anterior to be connected as a single entity with drill bit 1, for hollow cylinder structure, drilling rod rear portion is the cylinder storage box that connected diameter is greater than drilling rod, storage box 3 is the two taenidium connecting structures that close, and the rear end of storage box 3 is fixedly connected with the drill adapter coaxial with drilling rod 5; The front end face of drill bit 1 is the tooth cutting edge of a knife or a sword 7 that centre has the umbrella of through hole to arrange, and the outer circumference diameter of tooth cutting edge of a knife or a sword 7 is a bit larger tham the overall diameter of drilling rod, and interior all diameters are less than drilling rod intracavity diameter; Described tooth cutting edge of a knife or a sword 7 end faces are high outside and low outside taper; The upper side of the cylinder storage box of stating is provided with passage 6.
Claims (3)
1. a hollow bone drill brick, comprise drilling rod and drill bit, it is characterized in that drilling rod front portion is connected as a single entity with drill bit, for hollow cylinder structure, drilling rod rear portion is the cylinder storage box that connected diameter is greater than drilling rod, storage box is the two taenidium connecting structures that close, and the rear end of storage box is fixedly connected with the drill adapter coaxial with drilling rod; The front end face of drill bit is the tooth cutting edge of a knife or a sword that centre has the umbrella of through hole to arrange, and the outer circumference diameter of tooth cutting edge of a knife or a sword is a bit larger tham the overall diameter of drilling rod, and interior all diameters are less than drilling rod intracavity diameter.
2. hollow bone drill brick as claimed in claim 1, is characterized in that described tooth cutting edge of a knife or a sword end face is high outside and low outside taper.
3. hollow bone drill brick as claimed in claim 1, is characterized in that the upper side of described cylinder storage box is provided with passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420150016.6U CN203749496U (en) | 2014-03-31 | 2014-03-31 | Hollow bone drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420150016.6U CN203749496U (en) | 2014-03-31 | 2014-03-31 | Hollow bone drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203749496U true CN203749496U (en) | 2014-08-06 |
Family
ID=51244805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420150016.6U Expired - Fee Related CN203749496U (en) | 2014-03-31 | 2014-03-31 | Hollow bone drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203749496U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105361932A (en) * | 2015-11-18 | 2016-03-02 | 陈华 | Bone taking device |
| CN113244517A (en) * | 2021-07-05 | 2021-08-13 | 真实维度科技控股(珠海)有限公司 | Bone tissue puncture needle for particle implantation |
-
2014
- 2014-03-31 CN CN201420150016.6U patent/CN203749496U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105361932A (en) * | 2015-11-18 | 2016-03-02 | 陈华 | Bone taking device |
| CN113244517A (en) * | 2021-07-05 | 2021-08-13 | 真实维度科技控股(珠海)有限公司 | Bone tissue puncture needle for particle implantation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20150331 |
|
| EXPY | Termination of patent right or utility model |