CN104337560B - A kind of orthopaedics drill bit - Google Patents
A kind of orthopaedics drill bit Download PDFInfo
- Publication number
- CN104337560B CN104337560B CN201410353774.2A CN201410353774A CN104337560B CN 104337560 B CN104337560 B CN 104337560B CN 201410353774 A CN201410353774 A CN 201410353774A CN 104337560 B CN104337560 B CN 104337560B
- Authority
- CN
- China
- Prior art keywords
- drill bit
- slip
- slip drill
- detent
- main body
- 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
- 238000005553 drilling Methods 0.000 claims abstract description 19
- 210000002435 tendon Anatomy 0.000 claims abstract description 14
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 4
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000399 orthopedic effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
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)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of orthopaedics drill bit, comprising: drilling rod assembly, its main body is column, and upper end is provided with connection seat, and the sidewall of main body is provided with the convex tendon parallel with central shaft, and the sidewall of main body is additionally provided with the most equally distributed positioning tooth；Drill bit assembly, it is made up of fixed drill bit, the first slip drill bit, the second slip drill bit and the 3rd slip drill bit, fixed drill bit upper end always becomes one structure with drilling rod, first slip drill bit, the second slip drill bit and the 3rd slip drill bit all have centre bore, and be nested with on drilling rod assembly, the hole wall of centre bore is provided with chute and detent, when fixed drill bit, the first slip drill bit, the second slip drill bit and the 3rd slip drill bit are in close contact, four are integrally conical, and lateral wall is provided with continuous print helicla flute.As desired to regulate the first slip drill bit, the second slip drill bit and the position of the 3rd slip drill bit, and then the purpose of regulation opening diameter can be realized during Clinical practice, thus without more bit change, faster and more convenient operation, there is significant creativeness.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly relate to the orthopaedics drill bit that a kind of Orthopedic Clinical uses.
Background technology
On Orthopedic Clinical, generally need to carry out perforate on bone by bone drill, and according to different case scenario
And operation requirement, the aperture of perforate is required difference.The diameter of current every kind of drill bit is fixing, is provided with multiple
Model, need to change different drill bits according to the size of perforate during clinical manipulation and use, and on the one hand operation is relatively
For trouble, on the other hand too increase the risk probability of bit change-over fixation, improve it dangerous.
Summary of the invention
It is an object of the invention to provide a kind of easy to operate, use safety, can the most fast regulate out
The orthopaedics drill bit of hole size.
For realizing above-mentioned technical purpose, the present invention by the following technical solutions: a kind of orthopaedics drill bit, comprising:
Drilling rod assembly, its main body is column, and upper end is provided with connection seat, and the sidewall of main body is provided with puts down with central shaft
The convex tendon of row, the sidewall of main body is additionally provided with the most equally distributed positioning tooth；
Drill bit assembly, it is made up of four independent parts, is followed successively by fixed drill bit, the first slip brill from the bottom up
Head, the second slip drill bit and the 3rd slip drill bit, fixed drill bit upper end always becomes one structure with drilling rod, and first
Slip drill bit, the second slip drill bit and the 3rd slip drill bit all have centre bore, and are nested with on drilling rod assembly,
The hole wall of the centre bore of the centre bore of the first slip drill bit, the centre bore of the second slip drill bit and the 3rd slip drill bit
On be equipped with the detent that engage with positioning tooth of chute coordinated with convex tendon, fixed drill bit, first slide brill
When head, the second slip drill bit and the 3rd slip drill bit are in close contact, four are integrally conical, and lateral wall is provided with even
Continuous helicla flute, detent cannot move up with detent under positioning tooth engagement.
Described drilling rod assembly is provided with two convex tendons, substantially symmetrical about its central axis with main body of two convex tendons.
The locating slot of one and wherein centre axis parallel, described location is had in the main body wall of described drilling rod assembly
Tooth is arranged on the bottom of locating slot.
In described fixed drill bit, the first slip drill bit, the second slip drill bit and the 3rd slip drill bit four parts,
The interface of adjacent component is plane, and the joint of adjacent component is provided with and prevents both from positioning in relative rotation
Plug-in connection.
The described detent on the first slip drill bit, the second slip drill bit and the 3rd slip drill bit, pacifies respectively
It is loaded on the first slip drill bit, the second slip drill bit and the upper end position of the 3rd slip drill bit, the first slip drill bit,
The hole wall portion, center of the second slip drill bit and the 3rd slip drill bit is provided with pawl base, and detent is fixed by rotating shaft
In pawl base, detent upper end is provided with the shank extended to above its place parts, the 3rd described slip
Being equipped with a slotted eye on the lower surface of drill bit and the second slip drill bit, the slotted eye of the 3rd slip drill bit lower surface is used for
Accommodating the shank of the detent of the second slip drill bit, the slotted eye of the second slip drill bit lower surface is used for receiving first
The shank of the detent of slip drill bit, is provided with in rotating shaft and orders about the torsion spring that detent engages with positioning tooth.
The method have the advantages that due to fixed drill bit, the first slip drill bit, the second slip drill bit and
3rd slip drill bit four parts are integrally conical, and are provided with the helicla flute for boring, can basis during Clinical practice
Need to regulate the first slip drill bit, the second slip drill bit and the position of the 3rd slip drill bit, and then realize regulation
The purpose of opening diameter, thus without more bit change, faster and more convenient operation, drill bit is fixing more firm,
Use safer.The design of its detent mechanism is ingenious, is very easy to operation, and locating effect is preferable, has aobvious
The creativeness write.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the main sectional view of the present invention.
Fig. 3 is alloy bit assembly part structural representation.
Fig. 4 is A-A profile in Fig. 2.
Fig. 5 is the 3rd slip drill bit structure schematic diagram.
In figure, 1, connect seat, 2, main body, 3, convex tendon, 4, positioning tooth, 5, locating slot, the 6, the 3rd is sliding
Dynamic drill bit, the 7, second slip drill bit, the 8, first slip drill bit, 9, fixed drill bit, 10, helicla flute, 11,
Drilling rod assembly, 12, drill bit assembly, 13, centre bore, 14, chute, 15, detent, 16, location inserts
Connection mechanism, 17, shank, 18, pawl base, 19, slotted eye, 20, rotating shaft, 21, torsion spring.
Detailed description of the invention
Referring to shown in Fig. 1, a kind of orthopaedics drill bit, it is made up of drilling rod assembly 11 and drill bit assembly 12.
Referring to Fig. 1, shown in 2, described drilling rod assembly 11 includes that the main body 2 in column, main body 2 upper end set
Having the connection seat 1 for being connected with electric drill, the sidewall of main body 2 is provided with the convex tendon 3 parallel with central shaft, convex
Muscle 3 quantity is two, substantially symmetrical about its central axis with main body 2 of two convex tendons 3；Have on main body 2 sidewall one and its
The locating slot 5 that central shaft is parallel, the bottom of locating slot 5 is provided with the positioning tooth 4 being equally spaced.
Referring to shown in Fig. 1-5, described drill bit assembly 12, it is made up of, from the bottom up four independent parts
It is followed successively by fixed drill bit the 9, first slip drill bit the 8, second slip drill bit 7 and the 3rd slip drill bit 6；Fixing
Drill bit 9 upper end is structure as a whole with the main body 2 of drilling rod assembly 11；First slip drill bit 8, second slides and bores
7 and the 3rd slip drill bit 6 all have the centre bore 13 passed for drilling rod assembly 11, and three is nested with and is boring
On bar assembly 11；The centre bore 13 of centre bore 13, the second slip drill bit 7 of the first slip drill bit 8 and
The chute 14 coordinated with two convex tendons 3 and location it is equipped with on the hole wall of the centre bore 13 of three slip drill bits 6
The detent 15 that tooth 4 is engageable；When fixed drill bit the 9, first slip drill bit the 8, second slip drill bit 7 and
When 3rd slip drill bit 6 is in close contact, four are integrally conical, and lateral wall is provided with continuous print helicla flute 10,
First slip drill bit the 8, second slip can be stoped to bore under corresponding detent 15 and positioning tooth 4 engagement
7 and the 3rd slip drill bit 6 move up on drill bit assembly 12.
Referring to shown in Fig. 3, described fixed drill bit the 9, first slip drill bit the 8, second slip drill bit 7 and
In three slip drill bit 6 four parts, the interface of adjacent component is plane, and the joint of adjacent component is provided with
Prevent the location plug-in connection 16 that both relatively rotate.
Referring to shown in Fig. 3,4,5, first described slip drill bit the 8, second slip drill bit 7 and the 3rd slides
It is sliding that detent 15 on drill bit 6 is respectively arranged in first slip drill bit the 8, second slip drill bit 7 and the 3rd
The upper end position of dynamic drill bit 6, in first slip drill bit the 8, second slip drill bit 7 and the 3rd slip drill bit 6
Central hole 13 wall portion is provided with pawl base 18, and detent 15 is fixed in pawl base 15 by rotating shaft 20, fixed
Ratchet 15 upper end, position is provided with the shank 17 extended to above its place parts, the 3rd described slip drill bit 6 and
A slotted eye 18, the slotted eye 18 of the 3rd slip drill bit 6 lower surface it is equipped with on the lower surface of the second slip drill bit 7
For accommodating the shank 17 of the detent 15 of the second slip drill bit 7, the groove of the second slip drill bit 7 lower surface
Hole 18, for accommodating the shank 17 of the detent 15 of the first slip drill bit 8, is provided with in rotating shaft 20 to order about and determines
The torsion spring 21 that position ratchet 15 engages with positioning tooth 4.
Assume a diameter of R0 of fixed drill bit 9 upper end, a diameter of R1 of the first slip drill bit 8 upper end, second
A diameter of R2 of slip drill bit 7 upper end, a diameter of R3 of the 3rd slip drill bit 6 upper end；When needing perforate
During a diameter of R0, by the 3rd slip drill bit the 6, second slip drill bit 7 and the first slip drill bit 8 successively on push away,
The mobile top to drill bit assembly 12, utilizes fixed drill bit 9 to carry out perforate；It is R1 when needing opening diameter
Time, the shank 17 of the detent 15 of the first slip drill bit 8 will be pressed to inner side, make detent 15 with
Positioning tooth 4 departs from, and then is moved down by the first slip drill bit 8 smoothly so that it is lower end and fixed drill bit 9
Supporting, after unclamping shank 17, detent 15 coordinates prevention the first slip drill bit 8 upwards to move with positioning tooth 4
Dynamic, and convex tendon 3 coordinates with chute 14 and makes the first slip drill bit 8 and fixed drill bit 9 to relatively rotate,
Location plug-in connection 16 also functions to certain first slip drill bit 8 that prevents and occurs relative with fixed drill bit 9 simultaneously
The effect rotated, final drilling rod assembly 11 drives the first slip drill bit 8 to carry out with fixed drill bit 9 synchronous axial system
Perforate, making opening diameter is D1；The second slip drill bit 7 and the 3rd slip drill bit 6 is in like manner utilized respectively may be used
Output the hole of a diameter of D2, D3 respectively.
Claims (5)
1. an orthopaedics drill bit, it is characterised in that comprising:
Drilling rod assembly, its main body is column, and upper end is provided with connection seat, and the sidewall of main body is provided with puts down with central shaft
The convex tendon of row, the sidewall of main body is additionally provided with the most equally distributed positioning tooth；
Drill bit assembly, it is made up of four independent parts, is followed successively by fixed drill bit, the first slip brill from the bottom up
Head, the second slip drill bit and the 3rd slip drill bit, fixed drill bit upper end always becomes one structure with drilling rod, and first
Slip drill bit, the second slip drill bit and the 3rd slip drill bit all have centre bore, and are nested with on drilling rod assembly,
The hole wall of the centre bore of the centre bore of the first slip drill bit, the centre bore of the second slip drill bit and the 3rd slip drill bit
On be equipped with the detent that engage with positioning tooth of chute coordinated with convex tendon, fixed drill bit, first slide brill
When head, the second slip drill bit and the 3rd slip drill bit are in close contact, four are integrally conical, and lateral wall is provided with even
Continuous helicla flute, detent cannot move up with detent under positioning tooth engagement.
A kind of orthopaedics drill bit the most according to claim 1, it is characterised in that described drilling rod assembly
It is provided with two convex tendons, substantially symmetrical about its central axis with main body of two convex tendons.
A kind of orthopaedics drill bit the most according to claim 1, it is characterised in that described drilling rod assembly
Main body wall on have the locating slot of one and wherein centre axis parallel, described positioning tooth is arranged on the end of locating slot
Portion.
A kind of orthopaedics drill bit the most according to claim 1, it is characterised in that described fixed drill bit,
In first slip drill bit, the second slip drill bit and the 3rd slip drill bit four parts, the interface of adjacent component is
Plane, and the joint of adjacent component is provided with and prevents both from positioning plug-in connection in relative rotation.
A kind of orthopaedics drill bit the most according to claim 1, it is characterised in that the first described slip
Detent on drill bit, the second slip drill bit and the 3rd slip drill bit, be respectively arranged in the first slip drill bit,
Second slip drill bit and the upper end position of the 3rd slip drill bit, the first slip drill bit, the second slip drill bit and the 3rd
The hole wall portion, center of slip drill bit is provided with pawl base, and detent is fixed in pawl base by rotating shaft, positions spine
Pawl upper end is provided with the shank extended to above its place parts, the 3rd described slip drill bit and the second slip drill bit
Lower surface on be equipped with a slotted eye, the slotted eye of the 3rd slip drill bit lower surface is for accommodating the second slip drill bit
The shank of detent, the slotted eye of the second slip drill bit lower surface is for accommodating the detent of the first slip drill bit
Shank, be provided with in rotating shaft and order about the torsion spring that detent engages with positioning tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353774.2A CN104337560B (en) | 2014-07-18 | 2014-07-18 | A kind of orthopaedics drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353774.2A CN104337560B (en) | 2014-07-18 | 2014-07-18 | A kind of orthopaedics drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104337560A CN104337560A (en) | 2015-02-11 |
| CN104337560B true CN104337560B (en) | 2016-08-24 |
Family
ID=52494578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410353774.2A Expired - Fee Related CN104337560B (en) | 2014-07-18 | 2014-07-18 | A kind of orthopaedics drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104337560B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109199523A (en) * | 2018-07-19 | 2019-01-15 | 周玉芳 | A kind of Medical orthopaedic slitting device |
| CN111494092B (en) * | 2020-05-12 | 2021-11-30 | 河南省中医院（河南中医药大学第二附属医院） | Can collect duct washing unit of waste liquid |
| CN112411595B (en) * | 2020-11-09 | 2022-02-08 | 重庆渝发建设有限公司 | Combined tower crane foundation for deep foundation pit operation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4830000A (en) * | 1987-12-31 | 1989-05-16 | Aspen Laboratories, Inc. | Surgical drill |
| CN202619769U (en) * | 2012-02-21 | 2012-12-26 | 武汉大学 | Medical reducing drill bit |
| CN103142288A (en) * | 2013-03-29 | 2013-06-12 | 邵卫星 | Bone drill for centrum |
-
2014
- 2014-07-18 CN CN201410353774.2A patent/CN104337560B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104337560A (en) | 2015-02-11 |
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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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20170718 |
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| CF01 | Termination of patent right due to non-payment of annual fee |