CN101879084A - Diameter adjustable hollow drill bit - Google Patents
Diameter adjustable hollow drill bit Download PDFInfo
- Publication number
- CN101879084A CN101879084A CN 201010218858 CN201010218858A CN101879084A CN 101879084 A CN101879084 A CN 101879084A CN 201010218858 CN201010218858 CN 201010218858 CN 201010218858 A CN201010218858 A CN 201010218858A CN 101879084 A CN101879084 A CN 101879084A
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- China
- Prior art keywords
- drill bit
- hollow drill
- adjustable hollow
- diameter adjustable
- silk dish
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Abstract
The invention discloses a diameter adjustable hollow drill bit, which comprises a combined drill rod, a thread disc and a clamping sleeve, wherein the combined drill rod consists of at least two split rods, the end face of the thread disc is provided with a planar thread, and the clamping sleeve is sleeved outside the thread disc in a single degree-of-freedom rotation matching mode; the rear sections of the split rods are embedded into an outer sleeve in a single degree-of-freedom sliding mode along the radial direction of the thread disc, and the end faces of the rear sections are in threaded fit with the thread disc; the split rods are coaxially and co-peripherally arranged in parallel with the thread disc; and a split rod locking device is arranged on the outer sleeve. According to the diameter adjustable hollow drill bit, the combined drill rod is sleeved outside the bolts with different diameters by adjusting the diameter of the combined drill rod, the bolts and the surrounding tissues are separated by one-time drilling, and a broken bolt can be quickly taken out with short operation time and low operation wound in a broken bolt taking operation, so the operation difficulty can be reduced and the pain of a patient can be relieved.
Description
Technical field
The present invention relates to a kind of drill bit, particularly a kind of diameter adjustable hollow drill bit.
Background technology
For in the bone surgery during to osseous tissue and orthomorphia, the internal fixation device that steel plate and screw right and wrong are usually seen.And taking-up steel plate screw, particularly screw, the record document when needing to implant usually, searching out concrete model can take out.Clinically, occur broken nail in the art, the situation of stripped thread is not rare.Removing method to the screw that fractures in the prior art adopts the mode of punching continuously with electric drill usually around broken nail, screw is separated with surrounding tissue, thereby screw is taken out.This mode exists operation wound big, to the surrounding tissue well damage, and while operation process complexity, operating time is long, and it is painful that patient need bear more operation.
Therefore need a kind of screw withdrawing device, can the screw surrounding tissue not done under the excessive damage, fast broken nail is taken out, reduce operating difficulty, shorten operating time, reduce patient's misery, improve the operation quality.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of diameter adjustable hollow drill bit, diameter adjustable hollow drill bit can be enclosed within outside the screw of different-diameter by changing drill pipe diameter, once hole and screw and surrounding tissue can be separated by electric drill driving diameter adjustable hollow drill bit, screw is taken out.
Diameter adjustable hollow drill bit of the present invention, comprise the retaining sleeve that the combination type drilling rod, the end face that are made of two branch bars at least are provided with the silk dish of flat thread, the mode that is rotatably assorted with single-degree-of-freedom is coated at the silk dish, the bar back segment was being embedded in the overcoat along the mode that silk disc radial single-degree-of-freedom is slided in described minute, and the back segment end face cooperates with silk valve snail stricture of vagina, bar was set up in parallel with the coaxial circumference of silk dish in described minute, and described overcoat is provided with the branch lever lock and tightly installs.
Further, described minute bar comprise shaft, be fixedly installed on the slide block of shaft back segment and be fixedly installed on the cutting teeth of shaft front end, described retaining sleeve has been disposed radially T shape chute, and described slide block single-degree-of-freedom is slidingly matched and is embedded in the T shape chute, and slide block cooperates with silk valve snail stricture of vagina;
Further, described retaining sleeve has been disposed radially alignment pin, and the described silk dish face of cylinder has annular groove, and described alignment pin slidably is embedded in the annular groove;
Further, described silk dish is provided with rotating handle;
Further, described minute club body cross section is the fan annular;
Further, described locking device is a lock-screw.
Beneficial effect of the present invention: diameter adjustable hollow drill bit of the present invention, by adjusting the combination type drill pipe diameter, the combination type drilling rod can be coated at the screw of different-diameter, by once holing and screw and surrounding tissue can being separated, when taking out operation, can fast broken nail be taken out broken nail, operating time is short, operation wound is little, can reduce operating difficulty and alleviate patient's misery.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Fig. 1 is a diameter adjustable hollow drill bit overall structure cutaway view of the present invention;
Fig. 2 looks for the left side of Fig. 1 and dwindles view;
Fig. 3 is the three-dimensional view of P portion among Fig. 1.
The specific embodiment
Fig. 1 is a diameter adjustable hollow drill bit overall structure cutaway view of the present invention; Fig. 2 looks for the left side of Fig. 1 and dwindles view; Fig. 3 is the three-dimensional view of P portion among Fig. 1.
Diameter adjustable hollow drill bit of the present invention as shown in the figure comprises the retaining sleeve 2 that the combination type drilling rod, the end face that are made of four branch bars are provided with the silk dish 3 of flat thread, the mode that is rotatably assorted with single-degree-of-freedom is coated at silk dish 3; In the present embodiment, described minute bar comprise shaft 1a, be fixedly installed on the slide block 1b of shaft 1a back segment and be fixedly installed on the cutting teeth 1c of shaft 1a front end, described retaining sleeve 2 has been disposed radially T shape chute 2b, described slide block 1b single-degree-of-freedom is slidingly matched and is embedded among the T shape chute 2b, slide block 1b and silk dish 3 threaded engagement; Four branch bars are set up in parallel with silk dish 3 coaxial circumference.
In the present embodiment, retaining sleeve 2 has been disposed radially alignment pin 2a, and silk dish 3 faces of cylinder have annular groove 3b, and alignment pin 2a slidably is embedded among the annular groove 3b, has realized that silk dish 3 and 2 single-degree-of-freedoms of retaining sleeve are rotatably assorted.
In the present embodiment, described silk dish 3 upper surfaces are provided with rotating handle 3a, and rotation rotating handle 3a, silk dish 3 drive by the screw thread pair transmission and divide bar to slide along T shape chute, realize the diameter adjustment of combination type drilling rod; Also be provided with the locking device 4 of lock-screw formula in the present embodiment on the retaining sleeve 2, tighten lock-screw and get final product anchoring filament dish 3, prevent that branch bar diameter when boring from changing.
In the present embodiment, described shaft 1a cross section is the fan annular, and resistance is little when good rigidly, boring.
During use, the supporting use of diameter adjustable hollow drill bit and electric drill, retaining sleeve 2 is clamped on the electric drill, and once boring can be taken out screw, and operating time is short, and operation wound is little.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (6)
1. diameter adjustable hollow drill bit, it is characterized in that: comprise the retaining sleeve (2) that the combination type drilling rod, the end face that are made of two branch bars at least are provided with the silk dish (3) of flat thread, the mode that is rotatably assorted with single-degree-of-freedom is coated at silk dish (3), described minute bar back segment with can coil along silk (3) radially the single-degree-of-freedom mode of sliding be embedded in the overcoat (2), and back segment end face and silk dish (3) threaded engagement, bar was set up in parallel with silk dish (3) coaxial circumference in described minute, and described overcoat (2) is provided with the branch lever lock and tightly installs (4).
2. diameter adjustable hollow drill bit according to claim 1, it is characterized in that: described minute bar comprise shaft (1a), be fixedly installed on the slide block (1b) of shaft (1a) back segment and be fixedly installed on the cutting teeth (1c) of shaft (1a) front end, described retaining sleeve (2) has been disposed radially T shape chute (2b), described slide block (1b) single-degree-of-freedom is slidingly matched and is embedded in the T shape chute (2b), slide block (1b) and silk dish (3) threaded engagement.
3. diameter adjustable hollow drill bit according to claim 2, it is characterized in that: described retaining sleeve (2) has been disposed radially alignment pin (2a), described silk dish (3) face of cylinder has annular groove (3b), and described alignment pin (2a) slidably is embedded in the annular groove (3b).
4. diameter adjustable hollow drill bit according to claim 3 is characterized in that: described silk dish (3) is provided with rotating handle (3a).
5. diameter adjustable hollow drill bit according to claim 4 is characterized in that: club body (1a) cross section was the fan annular in described minute.
6. diameter adjustable hollow drill bit according to claim 5 is characterized in that: described locking device (4) is a lock-screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102188587A CN101879084B (en) | 2010-07-07 | 2010-07-07 | Diameter adjustable hollow drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102188587A CN101879084B (en) | 2010-07-07 | 2010-07-07 | Diameter adjustable hollow drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101879084A true CN101879084A (en) | 2010-11-10 |
| CN101879084B CN101879084B (en) | 2011-12-07 |
Family
ID=43051323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102188587A Expired - Fee Related CN101879084B (en) | 2010-07-07 | 2010-07-07 | Diameter adjustable hollow drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101879084B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725653A (en) * | 2017-03-03 | 2017-05-31 | 周晓光 | A kind of minimally invasive bone-operating device |
| CN108814706A (en) * | 2018-05-18 | 2018-11-16 | 奚修全 | Multifunctional screwdriver for orthopedics department |
| CN109152623A (en) * | 2016-03-21 | 2019-01-04 | 黄迪熙 | Dismountable medical cutting tool |
| CN109528265A (en) * | 2018-12-19 | 2019-03-29 | 北京天星博迈迪医疗器械有限公司 | Diameter can be changed drill bit and electric drill |
| 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 |
| CN113662691A (en) * | 2021-03-16 | 2021-11-19 | 梁光强 | Tool box for lifting inside of maxillary sinus |
| CN117442299A (en) * | 2023-12-20 | 2024-01-26 | 北京华脉泰科医疗器械股份有限公司 | Vascular access rotational grinding mechanism and vascular access establishing device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0241240A2 (en) * | 1986-04-07 | 1987-10-14 | E. Marlowe Goble | Suture anchor apparatus |
| CN86203850U (en) * | 1986-05-31 | 1987-11-11 | 张泉 | Broken screw pull-out tool for orthopaedics operation |
| CN2195923Y (en) * | 1994-04-18 | 1995-05-03 | 翟福英 | Safety ring drill with two edges |
| CN2203130Y (en) * | 1993-07-01 | 1995-07-12 | 张世江 | Safety screw take-in and -out device for orthopedics department |
| US5697935A (en) * | 1995-09-12 | 1997-12-16 | Medex Marketing, Inc. | Device and method for removing fastening implements from bone |
| US6110178A (en) * | 1997-04-25 | 2000-08-29 | Sulzer Orthopadie Ag | Apparatus for the production of endochondral or osteochondral bores |
-
2010
- 2010-07-07 CN CN2010102188587A patent/CN101879084B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0241240A2 (en) * | 1986-04-07 | 1987-10-14 | E. Marlowe Goble | Suture anchor apparatus |
| CN86203850U (en) * | 1986-05-31 | 1987-11-11 | 张泉 | Broken screw pull-out tool for orthopaedics operation |
| CN2203130Y (en) * | 1993-07-01 | 1995-07-12 | 张世江 | Safety screw take-in and -out device for orthopedics department |
| CN2195923Y (en) * | 1994-04-18 | 1995-05-03 | 翟福英 | Safety ring drill with two edges |
| US5697935A (en) * | 1995-09-12 | 1997-12-16 | Medex Marketing, Inc. | Device and method for removing fastening implements from bone |
| US6110178A (en) * | 1997-04-25 | 2000-08-29 | Sulzer Orthopadie Ag | Apparatus for the production of endochondral or osteochondral bores |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109152623A (en) * | 2016-03-21 | 2019-01-04 | 黄迪熙 | Dismountable medical cutting tool |
| CN114191125A (en) * | 2016-03-21 | 2022-03-18 | 黄迪熙 | Detachable medical cutting tool |
| CN106725653A (en) * | 2017-03-03 | 2017-05-31 | 周晓光 | A kind of minimally invasive bone-operating device |
| CN108814706A (en) * | 2018-05-18 | 2018-11-16 | 奚修全 | Multifunctional screwdriver for orthopedics department |
| CN109528265A (en) * | 2018-12-19 | 2019-03-29 | 北京天星博迈迪医疗器械有限公司 | Diameter can be changed drill bit and electric drill |
| CN113662691A (en) * | 2021-03-16 | 2021-11-19 | 梁光强 | Tool box for lifting inside of maxillary sinus |
| 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 |
| CN117442299A (en) * | 2023-12-20 | 2024-01-26 | 北京华脉泰科医疗器械股份有限公司 | Vascular access rotational grinding mechanism and vascular access establishing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101879084B (en) | 2011-12-07 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20120707 |