CN2318985Y - Conic blade self-stopping skull bit - Google Patents
Conic blade self-stopping skull bit Download PDFInfo
- Publication number
- CN2318985Y CN2318985Y CN 97248770 CN97248770U CN2318985Y CN 2318985 Y CN2318985 Y CN 2318985Y CN 97248770 CN97248770 CN 97248770 CN 97248770 U CN97248770 U CN 97248770U CN 2318985 Y CN2318985 Y CN 2318985Y
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- China
- Prior art keywords
- cutter
- connector
- drill
- drill bit
- utility
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- Expired - Fee Related
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Abstract
The utility model relates to a conic blade self-stopping skull drill head used for a craniotomy operation. The utility model is characterized in that the utility model is additionally provided with a quick connector of a shaft connection hole which forms a frustum shape, which leads the drill head to be conveniently and rapidly assembled and connected with a shaft rod matched with a drill. The orientation is exact, and the phenomenon existing in an existing drill head that when the existing drill head drills, the radial wobble is strong can be fundamentally avoided. An auxiliary drill cutter is provided with a cylindrical end head and a cutter body which is sheathed at the back of an end cutting edge of a main drill cutter and is provided with a conic cutter edge structure. The external shape of the cutter body forms a frustum shape. The auxiliary drill cutter is matched with the main drill cutter, which can lead a drill hole to form a groove shape. An operation can be easily carried out. The utility model also has functions of safety and protection.
Description
This utility model relates to the skull drill bit that operation of opening cranium is used, particularly tapering blade automatic stop skull drill bit.
At present, one-shot forming multiple-cutting-edge craspedodrome drill bit is all used in hospital's neurocranial surgery operation of opening cranium, and this drill bit and drilling tool axostylus axostyle join by the fastening realization of dop.This attaching structure makes that installation bothers, speed is also slow and drill bit attaching radially wobbles greatly, influences use in executing brill; Particularly German " Serpentis board " drill for craniotomy, as automatic stop craspedodrome drill bit, its secondary cutter external form of boring is cylindric, because due to this kind structure, the drill for craniotomy hole also is cylindric, be difficult to adapt to the situation that the patient's skull thin and thick differs, so that need to go again reaming sometimes, otherwise can cause the situation generation of walking the guide plate difficulty and hindering operation.
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art, provide a kind of simple in structure, attaching is convenient and swift, accurate positioning, safe in utilization, the pair that is provided with the tapering blade is bored cutter so that boring is the tapering blade automatic stop skull drill bit of groove shape with convenient operation.
Task of the present utility model is finished according to following technical proposals
This tapering blade automatic stop skull drill bit is equipped with quick connector, this quick connector system is by connector, spring, the card pearl, centring ring and outer sleeve body are formed, wherein connector is that a center is provided with the frustum shaft-jointed hole, cylindrical is provided with the spacing end face and the cylinder of spacing hole radially, the bottom of this connector connects with control clutch bulk phase and makes quick connector be secured to the upper end, the spacing end that reclines on the other end cylindrical is with spring, the centring ring ring set on cylindrical radially spacing hole place and touch radially spacing hole mutually with spring and contain and put the card pearl, body is set in connector outside the tubular, side makes quick connector combine one outside spring and the centring ring, and the secondary cutter that bores is that a cylindric termination is provided with profile and is frustum and is nested with at main cutter hub after boring cutter end sword.
The radially spacing hole that is provided with on the connector cylindrical can be provided with three and be furnished with the card pearl of equal number by the five equilibrium radian.
Description of drawings of the present utility model
Fig. 1 is a structure cutaway view of the present utility model;
Fig. 2 is an external overall sketch map of the present utility model.
Among the figure: main cutter 1, annular platform 2, secondary cutter 3, cylindrical shell 4, cardan shaft 5, control clutch body 6, stage clip 7, release wheel 8, connector 9, outer sleeve body 10, spring 11, radially spacing hole 12, card pearl 13, centring ring 14, the shaft-jointed hole 15 of boring of boring.
This utility model will elaborate in conjunction with the accompanying drawings and by embodiment.
This tapering blade automatic stop skull drill bit shown in attached Fig. 1 and 2, include main bore cutter 1, secondary bore cutter 3, cylindrical shell 4 and contain the control clutch system actuation mechanism of putting and in addition the quick connector of the release wheel 8 that joins of end and apical grafting constitute.Quick connector system is by connector 9, spring 11, card pearl 13.Centring ring 14 and outer sleeve body 10 assembly form.Its connector 9 is that shaft-jointed hole 15, cylindrical that a center is provided with frustum are provided with positive stop end in the face of claim to split two cylinders of spacing hole 12 radially.Reclining in the spacing end of its cylindrical is set with a spring 11, other have centring ring 14 with it contact ring be enclosed within radially spacing hole 12 places on connector 9 cylindricals.Two radially spacing hole 12 each contain and put one piece of card pearl 13.Outer sleeve body 10 cylindraceous is nested with side outside connector 9, spring 11 and centring ring 14, and quick connector is combined one, and joins and place drill bit top with the bottom of connector 9 and control clutch body 6.Select the shaft-jointed hole 15 with axostylus axostyle and connector 9 and the drilling tool of the termination that is complementary of spacing hole 12 radially for use, the also accurate positioning of firmly joining of the drill bit that the first insertion shaft-jointed hole 15 of its shaft rod end can need only be made this utility model and drilling tool axostylus axostyle.
The termination that secondary brill cutter 3 is a simple shape of circle is provided with profile and is taper, and is placed on the main end sword cutter hub afterwards that bores cutter 1.This structure makes the tapering blade of secondary brill cutter 3 and main the boring of its ring set form an annular platform 2 between the cutter 1.When making drill bit that skull is executed boring thus, the main cutter 1 that bores is vertically exerted pressure in place, skull location, under the counteracting force pushing tow of skull, as the control clutch system actuation mechanism action of prior art, promptly main cutter 1 rear end and control clutch body 6 commissures of boring drive the secondary cutter 3 that bores and bore with stepping; In case main bore that cutter 1 bores saturating skull and after losing withstand force to it; to lead by the effect of suppressing of cardan shaft 5 in the control clutch body 6 and stage clip 11 and to bore cutter 1 and release and break away from control clutch body 6 and remove the commissure attitudes; the then main cutter 1 that bores stops rotary-cut simultaneously with the secondary cutter 3 that bores; skull supports annular platform 2; form the boring of groove shape; walk guide plate thereby be beneficial to, also play safeguard protection effect brainpan.
The utility model is compared with skull drill bit of the prior art, and its advantage is: the quick connector of setting up Simple in structure, make drill bit and convenient and swift, the accurate positioning of drilling tool attaching, it is basic that drill bit radially wobbles big problem Be inhibited; The pair of tapering blade is bored knife structure makes boring be the groove shape, is of value to operation, and because ring-type Platform also is aided with the tapering blade, makes skull can support drill bit, has effectively prevented the damage of end sword to meninx, Has function of safety protection.
Claims (2)
1, a kind of master's brill cutter that includes, the secondary cutter that bores, the cutter tube, control clutch system actuation mechanism, the tapering blade automatic stop skull drill bit that the release wheel constitutes, it is characterized in that: this drill bit is provided with quick connector, this quick connector system is by connector, spring, the card pearl, centring ring and outer sleeve body are formed, wherein connector is that a center is provided with the frustum shaft-jointed hole, cylindrical is provided with the spacing end face and the cylinder of spacing hole radially, the bottom of this connector connects with control clutch bulk phase and makes quick connector be secured to the upper end, the spacing end that reclines on the other end cylindrical is with spring, the centring ring ring set on cylindrical radially spacing hole place and touch mutually with spring, radially the card pearl is put in the spacing hole culvert, body is set in connector outside the tubular, side makes quick connector combine one outside spring and the centring ring, and the secondary cutter that bores is that a cylindric termination is provided with profile and is frustum and is nested with at main cutter hub after boring cutter end sword.
2, according to the described tapering blade automatic stop skull drill bit of claim 1. it is characterized in that: the radially spacing hole that is provided with on the connector cylindrical can be provided with three and be furnished with the card pearl of equal number by the five equilibrium radian.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97248770 CN2318985Y (en) | 1997-12-11 | 1997-12-11 | Conic blade self-stopping skull bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97248770 CN2318985Y (en) | 1997-12-11 | 1997-12-11 | Conic blade self-stopping skull bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2318985Y true CN2318985Y (en) | 1999-05-19 |
Family
ID=33955859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97248770 Expired - Fee Related CN2318985Y (en) | 1997-12-11 | 1997-12-11 | Conic blade self-stopping skull bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2318985Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100500105C (en) * | 2002-11-13 | 2009-06-17 | 拉尔夫·F·兹沃曼 | Adjustable length tap for drilling holes in bone |
| CN105101891A (en) * | 2012-11-19 | 2015-11-25 | 胡瓦伊斯Ip控股有限公司 | Autografting osteotome |
| US9918764B2 (en) | 2012-12-11 | 2018-03-20 | Huwais IP Holding LLC | Implant/anchor for cellular and visco-elastic materials |
| US10568639B2 (en) | 2011-03-23 | 2020-02-25 | Huwais IP Holding LLC | Fluted osteotome and surgical method for use |
| US10912595B2 (en) | 2016-02-07 | 2021-02-09 | Huwais IP Holding LLC | Anchor screw with condensing attributes |
| US10980548B2 (en) | 2016-01-14 | 2021-04-20 | Huwais IP Holding LLC | Autografting tool with enhanced flute profile and methods of use |
-
1997
- 1997-12-11 CN CN 97248770 patent/CN2318985Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100500105C (en) * | 2002-11-13 | 2009-06-17 | 拉尔夫·F·兹沃曼 | Adjustable length tap for drilling holes in bone |
| US10568639B2 (en) | 2011-03-23 | 2020-02-25 | Huwais IP Holding LLC | Fluted osteotome and surgical method for use |
| CN105101891A (en) * | 2012-11-19 | 2015-11-25 | 胡瓦伊斯Ip控股有限公司 | Autografting osteotome |
| CN105101891B (en) * | 2012-11-19 | 2018-06-26 | 胡瓦伊斯Ip控股有限公司 | Autotransplantation osteotome |
| US9918764B2 (en) | 2012-12-11 | 2018-03-20 | Huwais IP Holding LLC | Implant/anchor for cellular and visco-elastic materials |
| US10980548B2 (en) | 2016-01-14 | 2021-04-20 | Huwais IP Holding LLC | Autografting tool with enhanced flute profile and methods of use |
| US11583294B2 (en) | 2016-01-14 | 2023-02-21 | Huwais IP Holding LLC | Autografting tool with enhanced flute profile and methods of use |
| US11712250B2 (en) | 2016-01-14 | 2023-08-01 | Huwais IP Holding LLC | Autografting tool with enhanced flute profile and methods of use |
| US10912595B2 (en) | 2016-02-07 | 2021-02-09 | Huwais IP Holding LLC | Anchor screw with condensing attributes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |