CN104013452B - Orthopaedics target drill - Google Patents
Orthopaedics target drill Download PDFInfo
- Publication number
- CN104013452B CN104013452B CN201410222171.9A CN201410222171A CN104013452B CN 104013452 B CN104013452 B CN 104013452B CN 201410222171 A CN201410222171 A CN 201410222171A CN 104013452 B CN104013452 B CN 104013452B
- Authority
- CN
- China
- Prior art keywords
- pole
- center
- drilling machine
- hollow
- trepanning drilling
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1613—Component parts
- A61B17/1615—Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
- A61B17/1617—Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material with mobile or detachable parts
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of orthopaedics target drill, it is by Hollow trepanning drilling machine, interior center-pole and outer center-pole composition, wherein the head of Hollow trepanning drilling machine is welded with milling cutter, outer center-pole is set in Hollow trepanning drilling machine, it is provided with thrust bearing between afterbody and the Hollow trepanning drilling machine of outer center-pole, clutch shaft bearing and the second bearing it is provided with between outer wall and the inwall of Hollow trepanning drilling machine of outer center-pole, interior center-pole it is coated with inside outer center-pole, it is provided with spring between afterbody and the outer center-pole of interior center-pole, interior center-pole is cylinder, cylinder is provided with at least one bar shaped feather key and is arranged in strip groove, the head end of interior center-pole is in the inner hexagonal hole that six prisms can be inserted in corresponding steel nail, interior center-pole traverse Hollow trepanning drilling machine, six prisms traverse milling cutters, the outside of Hollow trepanning drilling machine is provided with the first gear and engages with driving gear, driving gear couples with the output shaft of motor, the present invention successfully can take out the steel nail together with steel plate corrosion, and then can successfully the steel plate that is fixed on bone be taken out, it is to avoid the secondary injury to patient.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly to a kind of orthopaedics target drill.
Background technology
At present, the method for operation implant plate being taked to fix the bone injury fractureed for fracture patient, steel plate needs to fix with steel nail, is threaded between steel plate with steel nail. Further take out steel plate after certain time, but often due to overlong time, corrosion situation in steel plate can occur steel nail, so the difficulty taking out steel nail is big, and easily patient is caused secondary injury.
Summary of the invention
The steel nail corrosion that the invention aims to solve fixing bone injury is not easily taken out of problem in steel plate, and provides a kind of orthopaedics target drill.
The present invention is by Hollow trepanning drilling machine, interior center-pole and outer center-pole composition, wherein the head of Hollow trepanning drilling machine is welded with milling cutter, milling cutter is hollow, outer center-pole is set in Hollow trepanning drilling machine, it is provided with thrust bearing between afterbody and the Hollow trepanning drilling machine of outer center-pole, clutch shaft bearing and the second bearing it is provided with between outer wall and the inwall of Hollow trepanning drilling machine of outer center-pole, the head of outer center-pole is hollow, inside is coated with interior center-pole, it is provided with spring between afterbody and the outer center-pole of interior center-pole, interior center-pole is cylinder, cylinder is provided with at least one bar shaped feather key, the inwall of outer center-pole offers strip groove, bar shaped feather key is arranged in strip groove, the head end of interior center-pole is six prisms, six prisms can be inserted in the inner hexagonal hole of corresponding steel nail, interior center-pole traverse Hollow trepanning drilling machine, six prisms traverse milling cutters, the outside of Hollow trepanning drilling machine is provided with the first gear and engages with driving gear, driving gear couples with the output shaft of motor.
The work process of the present invention: when using the present invention, the afterbody of outer center-pole and motor are fixed on electric drill, first gear is meshed with the driving gear on motor output shaft, six prisms of interior center-pole head end are withstood on and is supported by spring in the steel nail inner hexagonal hole of fixation steel plate and position, driven by motor driving gear rotates, driving gear drives Hollow trepanning drilling machine quick rotation, Hollow trepanning drilling machine drives milling cutter rotation to be drilled through by the steel plate around steel nail and makes steel nail and steel plate disengaging, then instrument is used to be screwed out by steel nail, after all of steel nail takes out, the steel plate of fixing bone just can take out smoothly.
Beneficial effects of the present invention:
The present invention successfully can take out the steel nail together with steel plate corrosion, and then can successfully the steel plate that is fixed on bone be taken out, it is to avoid the secondary injury to patient.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional view of the present invention.
Fig. 2 is A A in Fig. 1 to sectional view.
Fig. 3 is the B direction view in Fig. 1.
Fig. 4 is C C in Fig. 3 to sectional view.
Detailed description of the invention
Refer to Fig. 1, shown in Fig. 2 and Fig. 3, for embodiments of the invention, the present embodiment is by Hollow trepanning drilling machine 1, interior center-pole 2 and outer center-pole 3 form, wherein the head of Hollow trepanning drilling machine 1 is welded with milling cutter 4, milling cutter 4 is hollow, outer center-pole 3 is set in Hollow trepanning drilling machine 1, it is provided with thrust bearing 5 between afterbody and the Hollow trepanning drilling machine 1 of outer center-pole 3, clutch shaft bearing 6 and the second bearing 7 it is provided with between outer wall and the inwall of Hollow trepanning drilling machine 1 of outer center-pole 3, the head of outer center-pole 3 is hollow, inside is coated with interior center-pole 2, it is provided with spring 8 between afterbody and the outer center-pole 3 of interior center-pole 2, interior center-pole 2 is cylinder, cylinder is provided with three bar shaped feather keys 22, the inwall of outer center-pole 3 offers three strip grooves 31, bar shaped feather key 22 is arranged in strip groove 31, the head end of interior center-pole 2 is six prisms 21, six prisms 21 can be inserted in the inner hexagonal hole of corresponding steel nail, interior center-pole 2 traverse Hollow trepanning drilling machine 1, six prisms 21 traverse milling cutters 4, the outside of Hollow trepanning drilling machine 1 is provided with the first gear 9 and engages with driving gear 10, driving gear 10 couples with the output shaft of motor 11.
Blade 41 shape of milling cutter 4 is as shown in Figure 3 and Figure 4.
The work process of the present invention:
When using the present invention, the afterbody of outer center-pole 3 and motor 11 are fixed on electric drill, first gear 9 is meshed with the driving gear 10 on motor 11 output shaft, six prisms 21 of interior center-pole 2 head end are withstood on and is supported by spring 8 in the steel nail inner hexagonal hole of fixation steel plate and position, motor 11 drives driving gear 10 to rotate, driving gear 10 drives Hollow trepanning drilling machine 1 quick rotation, Hollow trepanning drilling machine 1 drives milling cutter 4 to rotate the steel plate around by steel nail and drills through and make steel nail and steel plate depart from, then instrument is used to be screwed out by steel nail, after all of steel nail takes out, the steel plate of fixing bone just can take out smoothly.
Claims (1)
1. an orthopaedics target drill, it is characterized in that: be by Hollow trepanning drilling machine (1), interior center-pole (2) and outer center-pole (3) composition, wherein the head of Hollow trepanning drilling machine (1) is welded with milling cutter (4), milling cutter (4) is for hollow, outer center-pole (3) is set in Hollow trepanning drilling machine (1), it is provided with thrust bearing (5) between afterbody and the Hollow trepanning drilling machine (1) of outer center-pole (3), it is provided with clutch shaft bearing (6) and the second bearing (7) between outer wall and the inwall of Hollow trepanning drilling machine (1) of outer center-pole (3), the head of outer center-pole (3) is hollow, inside is coated with interior center-pole (2), it is provided with spring (8) between afterbody and the outer center-pole (3) of interior center-pole (2), interior center-pole (2) is cylinder, cylinder is provided with at least one bar shaped feather key (22), the inwall of outer center-pole (3) offers strip groove (31), bar shaped feather key (22) is arranged in strip groove (31), the head end of interior center-pole (2) is six prisms (21), six prisms (21) can be inserted in the inner hexagonal hole of corresponding steel nail, interior center-pole (2) traverse Hollow trepanning drilling machine (1), six prisms (21) traverse milling cutter (4), the outside of Hollow trepanning drilling machine (1) is provided with the first gear (9) and engages with driving gear (10), driving gear (10) couples with the output shaft of motor (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410222171.9A CN104013452B (en) | 2014-05-23 | 2014-05-23 | Orthopaedics target drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410222171.9A CN104013452B (en) | 2014-05-23 | 2014-05-23 | Orthopaedics target drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104013452A CN104013452A (en) | 2014-09-03 |
| CN104013452B true CN104013452B (en) | 2016-06-08 |
Family
ID=51430654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410222171.9A Expired - Fee Related CN104013452B (en) | 2014-05-23 | 2014-05-23 | Orthopaedics target drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104013452B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691574A (en) * | 2015-11-16 | 2017-05-24 | 孔庆华 | Drill bit for department of orthopaedics |
| CN107518930B (en) * | 2017-10-14 | 2018-11-30 | 刘勇 | A kind of bone drill for medical robot |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2221948Y (en) * | 1995-04-28 | 1996-03-13 | 霍庆生 | Medical bone reamer |
| US5951554A (en) * | 1997-10-02 | 1999-09-14 | Holmes; Russell P. | Screw removal system |
| JPH11128243A (en) * | 1997-10-31 | 1999-05-18 | Homuzu Giken:Kk | Instrument for extracting embedded member |
| CN2469899Y (en) * | 2001-03-07 | 2002-01-09 | 邓国勋 | Dilator for drawing-out residual screw in bone |
| CN203107267U (en) * | 2013-02-05 | 2013-08-07 | 山东省立医院 | Orthopedic nail taking device |
-
2014
- 2014-05-23 CN CN201410222171.9A patent/CN104013452B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104013452A (en) | 2014-09-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: He Yuquan Inventor after: Sang Haiyan Inventor after: Zhang Chunmiao Inventor after: Ding Haiyan Inventor after: Zhang Shu Inventor before: Sang Haiyan Inventor before: Zhang Chunmiao Inventor before: Ding Haiyan Inventor before: Zhang Shu |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: SANG HAIYAN ZHANG CHUNMIAO DING HAIYAN ZHANG SHU TO: HE YUQUAN SANG HAIYAN ZHANG CHUNMIAO DING HAIYAN ZHANG SHU |
|
| 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: 20160608 Termination date: 20170523 |