CN204260785U - A kind of novel bone-taking drill - Google Patents
A kind of novel bone-taking drill Download PDFInfo
- Publication number
- CN204260785U CN204260785U CN201420734990.7U CN201420734990U CN204260785U CN 204260785 U CN204260785 U CN 204260785U CN 201420734990 U CN201420734990 U CN 201420734990U CN 204260785 U CN204260785 U CN 204260785U
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- China
- Prior art keywords
- bit body
- drill bit
- helical groove
- taking
- drill
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Abstract
The utility model discloses a kind of novel bone-taking drill, the electric drill connecting rod comprising hollow drill bit body and be connected with hollow drill bit body, the front end of described hollow drill bit body is provided with band saw dentation blade, the outer surface of described hollow drill bit body is provided with continuous print helical groove, and the spiral direction of described helical groove is contrary with the direction of rotation of novel bone-taking drill.This utility model aims to provide a kind of novel bone-taking drill completely can preserving drilled through bone.
Description
Technical field
This utility model relates to medical instruments field, particularly a kind of novel bone-taking drill.
Background technology
In bone surgery, for the ease of determining the state of an illness and to disease treatment, during femur head necrosis, tunnel need be opened through neck of femur, then the osseous tissue of focal zone taken out chemical examination or treat for focal zone, chemical examination or treatment terminate after by synthetic skeleton or again get autologous bone transplanting by this treatment passage fill up, synthetic skeleton is expensive, increase the burden of patient, take from the wound again that the body influential point of bone causes body, increase the misery of patient, therefore, if can be complete by the skeleton of taking-up during boring preservation, complete skeleton can be backfilled after diagnosis and treatment terminate.
Utility model content
The purpose of this utility model is to provide a kind of novel bone-taking drill completely can preserving drilled through skeleton.
The technical solution adopted in the utility model is as follows:
A kind of novel bone-taking drill, the electric drill electric drill connecting rod comprising hollow drill bit body and be connected with hollow drill bit body, the front end of described hollow drill bit body is provided with band saw dentation blade, the outer surface of described hollow drill bit body is provided with continuous print helical groove, and the spiral direction of described helical groove is contrary with the direction of rotation of novel bone-taking drill.
In above-mentioned novel bone-taking drill, the quantity of described helical groove is 4, and 4 described helical grooves are evenly arranged in the outer surface of hollow drill bit body.
In above-mentioned novel bone-taking drill, the length of described hollow drill bit body is 100 ~ 200mm, and the length of described electric drill electric drill connecting rod is 20 ~ 50mm, and the pitch of described helical groove is 10 ~ 12mm.
In above-mentioned novel bone-taking drill, the section of described helical groove is right angled triangle, and two right-angle sides of described right angled triangle are respectively the upper side edge of the section of helical groove and open limit.
In above-mentioned novel bone-taking drill, the blade angle of described band saw dentation blade is 30 ~ 45 °, and preferably, this blade angle is 32 ~ 34 °.
This utility model, by arranging band saw dentation blade and helical groove, bores with band saw dentation blade head of boning, and bone bits are discharged by helical groove, prevents bone from considering to be worth doing and falls into bone passage.
Further, the applicant found through experiments and arranges suitable blade angle and coordinate with helical groove, the stability drilled through can be improved, when blade angle is 30 ~ 45 °, its long service life, not yielding, the bone bits drilled through are thin, easily extruded gradually by helical groove, when blade angle is lower than 30 °, although bone bits are thin, but blade is easily out of shape, the blade of distortion easily causes the bone bits of surrounding to produce slight crack, when blade angle is greater than 45 °, when drilling through, bone meal granule is large, easily be stuck in helical groove, particularly when blade angle is 32 ~ 34 °, bone-taking drill is to 500 routine Patients with Aseptic Necrosis of Femoral Post operation, blade shape variability is less than 2%, the bone bits that drilling operation produces can in helical groove stable existence and movement.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1 of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
Embodiment 1
As shown in Figure 1, a kind of novel bone-taking drill, the electric drill connecting rod 2 comprising hollow drill bit body 1 and be connected with hollow drill bit body 1, the front end of described hollow drill bit body 1 is provided with band saw dentation blade 3, described hollow drill bit body 1 is provided with continuous print helical groove 4, the spiral direction of described helical groove 4 is contrary with the direction of rotation of novel bone-taking drill, the section of described helical groove 4 is right angled triangle, two right-angle sides of described right angled triangle are respectively the upper side edge of the section of helical groove 4 and open limit, the limit that the opening that open limit refers to groove comprises, the blade angle of described band saw dentation blade 3 is 33 °, described hollow drill bit body 1 and electric drill connecting rod 2 are threaded connection, described hollow drill bit body 1 is provided with through hole radially 2 11 near the end of electric drill connecting rod 2.
In the present embodiment, the length of hollow drill bit body 1 is 150mm, hollow drill bit body 1 external diameter 18mm, hollow bulb diameter 15mm, and the length of electric drill connecting rod 2 is 35mm, and the quantity of helical groove 4 is 4, and the pitch of helical groove 4 is 11mm.
In actual use, the solid steel rod coordinated with through hole 11 by is inserted in through hole 11, is connected on electric drill by electric drill connecting rod 2, and low rate start electric drill rotates forward, and electric drill connecting rod 2 and hollow drill bit body 1 is tightened.Then electric drill is forwarded to top gear, on neck of femur, treatment tunnel is beaten at near-end, bone bits are discharged by helical groove 4, the column type skeletal tissue drilled through is in the hollow bulb of hollow drill bit body 1, drilling depth is 10cm, after drilling through end, stop electric drill, pull out in the neck of femur tunnel of drill bit from femoral head, again solid steel rod is inserted in through hole 11, low rate start electric drill reverses, electric drill connecting rod 2 is separated with hollow drill bit body 1, then by the stainless steel rod of a sterilization, the osseous tissue of hollow bulb is released, this design is also conducive to cleaning and the sterilization of this drill bit.The column type osseous tissue that this drill bit drills through is complete, and without fracture, near end of thighbone osseous tissue is also without bone splits.If do not take out osseous tissue with drill bit, then use the medical probe of a buckle, tick from osseous tunnel after being loosened.
Although describe embodiment of the present utility model by reference to the accompanying drawings; but patent owner can make various distortion or amendment within the scope of the appended claims; as long as be no more than the protection domain described by claim of the present utility model, all should within protection domain of the present utility model.
Claims (5)
1. a novel bone-taking drill, the electric drill connecting rod comprising hollow drill bit body and be connected with hollow drill bit body, it is characterized in that, the front end of described hollow drill bit body is provided with band saw dentation blade, the outer surface of described hollow drill bit body is provided with continuous print helical groove, and the spiral direction of described helical groove is contrary with the direction of rotation of novel bone-taking drill.
2. novel bone-taking drill according to claim 1, is characterized in that, the quantity of described helical groove is 4, and 4 described helical grooves are evenly arranged in the outer surface of hollow drill bit body.
3. novel bone-taking drill according to claim 1, is characterized in that, the length of described hollow drill bit body is 100 ~ 200mm, and the length of described electric drill connecting rod is 20 ~ 50mm, and the pitch of described helical groove is 10 ~ 12mm.
4. novel bone-taking drill according to claim 3, is characterized in that, the section of described helical groove is right angled triangle, and two right-angle sides of described right angled triangle are respectively the upper side edge of the section of helical groove and open limit.
5. novel bone-taking drill according to claim 1, is characterized in that, the blade angle of described band saw dentation blade is 30 ~ 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420734990.7U CN204260785U (en) | 2014-11-28 | 2014-11-28 | A kind of novel bone-taking drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420734990.7U CN204260785U (en) | 2014-11-28 | 2014-11-28 | A kind of novel bone-taking drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204260785U true CN204260785U (en) | 2015-04-15 |
Family
ID=52795691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420734990.7U Expired - Fee Related CN204260785U (en) | 2014-11-28 | 2014-11-28 | A kind of novel bone-taking drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204260785U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105232092A (en) * | 2015-08-28 | 2016-01-13 | 陆宁 | Bone tissue aspiration biopsy needle core |
| CN106725718A (en) * | 2017-01-17 | 2017-05-31 | 吴大怡 | Broken harvesting of bone is bored |
| WO2021229854A1 (en) * | 2020-05-14 | 2021-11-18 | 株式会社ビック・ツール | Hollow drill for medical use |
-
2014
- 2014-11-28 CN CN201420734990.7U patent/CN204260785U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105232092A (en) * | 2015-08-28 | 2016-01-13 | 陆宁 | Bone tissue aspiration biopsy needle core |
| CN106725718A (en) * | 2017-01-17 | 2017-05-31 | 吴大怡 | Broken harvesting of bone is bored |
| CN106725718B (en) * | 2017-01-17 | 2023-11-03 | 吴大怡 | Broken bone collecting drill |
| WO2021229854A1 (en) * | 2020-05-14 | 2021-11-18 | 株式会社ビック・ツール | Hollow drill for medical use |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20191128 |