CN2469899Y - Dilator for drawing-out residual screw in bone - Google Patents
Dilator for drawing-out residual screw in bone Download PDFInfo
- Publication number
- CN2469899Y CN2469899Y CN 01208245 CN01208245U CN2469899Y CN 2469899 Y CN2469899 Y CN 2469899Y CN 01208245 CN01208245 CN 01208245 CN 01208245 U CN01208245 U CN 01208245U CN 2469899 Y CN2469899 Y CN 2469899Y
- Authority
- CN
- China
- Prior art keywords
- drillstock
- boring bit
- hollow boring
- rear end
- face
- 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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- Surgical Instruments (AREA)
Abstract
The utility model relates to a medical orthopaedics hole enlarger, which comprises a hollow drill and a drillstock with the front section having an external thread, the back section in the step of the hollow drill has an internal thread connected with the external thread of the drillstock, the back end of the hollow drill is provided with a plurality of inclined opening slots, a guide rod and a spiral spring are arranged in the inner hole of the step of the hollow drill, a casing pipe is also covered on the external thread of the drillstock, and the front section of the casing pipe is provided with a tapered jaw matching with the inclined opening of the drill. In addition, the external thread of the drillstock is also connected with a locknut. The drilling position is easy to aim, and the hollow drill and the drillstock can be dismantled and is connected firmly.
Description
This utility model relates to a kind of medical orthopaedics reamer, and after especially phalanges recovered from injury and closes, before taking out residual screw, elder generation was to the reamer of the screw reaming on the bone wall.
At present, the common solid bit of general employing, be clamped on the orthopaedics drilling tool, to the boring of human body bone wall, be difficult to aim at the position of screw place bone wall residual in the bone wall, occur the relative solid bit of residual screw easily and collide, drill bit and orthopaedics drilling tool are skidded and drilling can't be proceeded, even drill bit head damage or break, and imbed in the bone, cause malpractice.
In view of this, the purpose of this utility model provides a kind of reamer of getting residual screw in the bone, pierces in the bone wall with core drill, and also has the activity-oriented bar that stretches out in this core drill, and core drill adopts dismountable firm connection with drillstock again.
The purpose of this utility model is achieved in that a kind of reamer of getting residual screw in the diaphysis, comprise that hollow boring bit and leading portion thereof have externally threaded drillstock, it is characterized in that: be a ladder endoporus in the hollow boring bit, the macropore back segment of this ladder endoporus has female thread, and several diagonal cut joint grooves are offered in the rear end of this hollow boring bit, the sliding guide post of establishing in the aperture of this ladder endoporus, female thread at hollow boring bit is connected with the external screw thread of drillstock, and be provided with a helical spring between the rear end face of this externally threaded front end face and guide post, a sheathed sleeve pipe on this external screw thread again, this sleeve pipe leading portion has several tapered jaws, and cooperate with the diagonal cut joint groove of hollow boring bit, on this external screw thread, connect a locking nut again, and the front end face of this locking nut is against telescopic rear end face.
The rear end of described guide post has big termination, and is in the macropore of described ladder endoporus;
The two sides of described diagonal cut joint groove are all the inclined-plane, and same described tapered jaw two sides also are the inclined-plane.
Because adopt such scheme, bore position is easily aimed at, and hollow boring bit and drillstock can load and unload, and is connected firmly again.
Below in conjunction with drawings and Examples this utility model is further specified.
Fig. 1 this utility model exemplary embodiments sketch map.
Among the figure: 1, hollow boring bit, 11, the ladder endoporus, 12, the diagonal cut joint groove, 13, female thread, 14, helicla flute, 2, guide post, 3, helical spring, 4, drillstock, 41, external screw thread, 5, sleeve pipe, 51, tapered jaw, 6, locking nut.
Present embodiment comprises: hollow boring bit 1, guide post 2, helical spring 3, drillstock 4, sleeve pipe 5, and locking nut 6 (as shown in Figure 1) is wherein:
Hollow boring bit 1 its leading portion (left side section) outer surface has two symmetric helicla flutes 14 (both two helicla flutes), sheds for the drilling heat, improves the speed of boring the bone wall, reduces operating time; And be that the macropore back segment (right section) of this ladder endoporus 11 of a ladder endoporus 11 (promptly having a circular bead surface) has female thread 13 in this hollow boring bit 1, also the rear end of hollow boring bit 1 (right-hand member) five equilibrium offer several diagonal cut joint grooves 12 (side is all the inclined-plane again).
Drillstock 4 is cylinder axis that leading portion (left side section) has external screw thread 41, be connected with the female thread 13 of hollow boring bit 1 with its oncomelania stricture of vagina silk 41 front ends (left side section), and the front end of drillstock 4 is against the rear end of helical spring 3, with the front end of drillstock 4 forward or backward, and the pressure size of adjustable screw spring 3.
The operation and the principle thereof of present embodiment are as follows:
At first, the back segment of drillstock 4 (cylindrical bar) is clamped in the orthopaedics drilling tool, guide post 2 is aimed at the center of the bone cinclides of desiring to get residual screw, start the orthopaedics drilling tool, drive hollow boring bit 1 rotation through drillstock 4, locking nut 6, sleeve pipe 5, and guide post 2 does not rotate, only play the guiding role; This hollow boring bit 1 pierces in the bone wall, and guide post 2 bounces back in the hollow boring bit 1 gradually, penetrates the bone wall until hollow boring bit 1 front end.
Claims (3)
1, a kind of reamer of getting residual screw in the diaphysis, comprise that hollow boring bit and leading portion thereof have externally threaded drillstock, it is characterized in that: be a ladder endoporus in the hollow boring bit, the macropore back segment of this ladder endoporus has female thread, and several diagonal cut joint grooves are offered in the rear end of this hollow boring bit, the sliding guide post of establishing in the aperture of this ladder endoporus, female thread at hollow boring bit is connected with the external screw thread of drillstock, and be provided with a helical spring between the rear end face of this externally threaded front end face and guide post, a sheathed sleeve pipe on this external screw thread again, this sleeve pipe leading portion has several tapered jaws, and cooperate with the diagonal cut joint groove of hollow boring bit, on this external screw thread, connect a locking nut again, and the front end face of this locking nut is against telescopic rear end face.
2, by the described reamer of getting residual screw in the diaphysis of claim 1, it is characterized in that: the rear end of described guide post has big termination, and is in the macropore of described ladder endoporus.
3, by the described reamer of getting residual nail in the diaphysis of claim 1, it is characterized in that: the two sides of described diagonal cut joint groove are all the inclined-plane, and same described tapered jaw two sides also are the inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01208245 CN2469899Y (en) | 2001-03-07 | 2001-03-07 | Dilator for drawing-out residual screw in bone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01208245 CN2469899Y (en) | 2001-03-07 | 2001-03-07 | Dilator for drawing-out residual screw in bone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2469899Y true CN2469899Y (en) | 2002-01-09 |
Family
ID=33628469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01208245 Expired - Fee Related CN2469899Y (en) | 2001-03-07 | 2001-03-07 | Dilator for drawing-out residual screw in bone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2469899Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398075C (en) * | 2005-07-05 | 2008-07-02 | 上海第二工业大学 | Hollow soft drill and its manufacturing method |
| CN102573667A (en) * | 2009-04-02 | 2012-07-11 | 马丁·M·马劳尔 | Bone rifling system and method of preparing a bone using such system |
| CN104013452A (en) * | 2014-05-23 | 2014-09-03 | 吉林大学 | Drill bit special for department of orthopaedics |
| CN106137316A (en) * | 2016-07-28 | 2016-11-23 | 创生医疗器械（中国）有限公司 | Sight drill bushing |
| CN106691574A (en) * | 2015-11-16 | 2017-05-24 | 孔庆华 | Drill bit for department of orthopaedics |
| CN107802336A (en) * | 2017-11-14 | 2018-03-16 | 于朝用 | A kind of broken nail withdrawing device of orthopaedics hollow nail |
| CN103690276B (en) * | 2012-09-20 | 2018-10-26 | 德普伊爱尔兰无限公司 | The surgical instrument system of reamer with different lengths |
-
2001
- 2001-03-07 CN CN 01208245 patent/CN2469899Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398075C (en) * | 2005-07-05 | 2008-07-02 | 上海第二工业大学 | Hollow soft drill and its manufacturing method |
| CN102573667A (en) * | 2009-04-02 | 2012-07-11 | 马丁·M·马劳尔 | Bone rifling system and method of preparing a bone using such system |
| CN102573667B (en) * | 2009-04-02 | 2015-04-29 | 马丁·M·马劳尔 | Bone rifling system and method of preparing a bone using such system |
| US9084614B2 (en) | 2009-04-02 | 2015-07-21 | Orthorifling Systems, Llc | Bone rifling system and method of preparing a bone using such system |
| CN103690276B (en) * | 2012-09-20 | 2018-10-26 | 德普伊爱尔兰无限公司 | The surgical instrument system of reamer with different lengths |
| US10543097B2 (en) | 2012-09-20 | 2020-01-28 | Depuy Ireland Unlimited Company | Method and surgical instrument system with multiple lengths of broaches sharing a common geometry |
| US10583011B2 (en) | 2012-09-20 | 2020-03-10 | Depuy Ireland Unlimited Company | Method and system including sleeves and broaches for surgically preparing the patient's bone |
| US11648127B2 (en) | 2012-09-20 | 2023-05-16 | Depuy Ireland Unlimited Company | Method and system including sleeves and broaches for surgically preparing the patient's bone |
| CN104013452A (en) * | 2014-05-23 | 2014-09-03 | 吉林大学 | Drill bit special for department of orthopaedics |
| CN106691574A (en) * | 2015-11-16 | 2017-05-24 | 孔庆华 | Drill bit for department of orthopaedics |
| CN106137316A (en) * | 2016-07-28 | 2016-11-23 | 创生医疗器械（中国）有限公司 | Sight drill bushing |
| CN107802336A (en) * | 2017-11-14 | 2018-03-16 | 于朝用 | A kind of broken nail withdrawing device of orthopaedics hollow nail |
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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 |