CN106137316B - Sighting device drill bushing - Google Patents
Sighting device drill bushing Download PDFInfo
- Publication number
- CN106137316B CN106137316B CN201610599058.1A CN201610599058A CN106137316B CN 106137316 B CN106137316 B CN 106137316B CN 201610599058 A CN201610599058 A CN 201610599058A CN 106137316 B CN106137316 B CN 106137316B
- Authority
- CN
- China
- Prior art keywords
- drill bushing
- main body
- bushing main
- claw
- mounting hole
- 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.)
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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
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
-
- 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
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1725—Guides or aligning means for drills, mills, pins or wires for applying transverse screws or pins through intramedullary nails or pins
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
Abstract
The present invention relates to the field of medical instrument technology, more particularly to a kind of sighting device drill bushing, for being mounted on diopter, drill bushing mounting hole is offered on diopter, drill bushing mounting hole is through-hole, sighting device drill bushing includes drill bushing main body, the outer ring of drill bushing main body is provided with Tensioning structure, drill bushing main body is plugged in drill bushing mounting hole by the Tensioning structure of the outer ring of drill bushing main body, one end that drill bushing main body is introduced into drill bushing mounting hole is the front end of drill bushing main body, the one end for entering drill bushing mounting hole after drill bushing main body is the rear end of drill bushing main body, the front end of drill bushing main body to rear end offers screw sight hole, screw sight hole is through-hole.Sighting device drill bushing of the invention changes the mode of conventionally employed circlip fixed drill bushing and diopter, and by the way that Tensioning structure is arranged in drill bushing main body outer ring, the fixation of realization drill bushing and diopter is not only easy for installation but also more stable using tensioner mode.
Description
Technical field
The present invention relates to the field of medical instrument technology more particularly to a kind of sighting device drill bushings.
Background technique
Currently, situations such as clinically treating fracture, bone congenital dysplasia or bone split, requires on bone
Drivescrew is fixed, and before being packed into screw, needs first to punch bone, in order to accurately punch to bone, needs
Sighting device is used, sighting device includes fixed diopter on the steel plate, and the drill bushing for guiding, punching are equipped on diopter
Device is protruded into drill bushing and is punched to bone.By circlip, (diopter is sleeved on drill bushing to existing drill bushing with diopter grafting
Outside), this mounting means has the disadvantage that 1, circlip is easily deformed, and installs unstable；2, on drill bushing outer ring and diopter
Jack inner ring is elastic different, if 3, Rig up error, circlip is easy to jump out, 4, circlip use nickel-titanium alloy material, it is at high cost.
Summary of the invention
The technical problem to be solved by the present invention is unstable using the fixed drill bushing of circlip and diopter in order to solve the prior art
Fixed defect, the present invention provide a kind of sighting device drill bushing.
The technical solution adopted by the present invention to solve the technical problems is: a kind of sighting device drill bushing is taken aim at for being mounted on
Drill bushing mounting hole is offered on quasi- frame, on diopter, the drill bushing mounting hole is through-hole, and the sighting device drill bushing includes drill bushing
Main body, the outer ring of drill bushing main body are provided with Tensioning structure, and the drill bushing main body crosses the Tensioning structure grafting of the outer ring of drill bushing main body
In drill bushing mounting hole, the drill bushing main body be introduced into drill bushing mounting hole one end be drill bushing main body front end, after drill bushing main body
It is the rear end of drill bushing main body into one end of drill bushing mounting hole, front end to the rear end of drill bushing main body offers screw sight hole, spiral shell
Nail sight hole is through-hole.Sighting device of the invention is inserted into drill bushing mounting hole by the Tensioning structure of drill bushing main body outer ring with drill bushing
Interior, drill bushing main body is fixedly connected with diopter after Tensioning structure tensioner, and drill bit passes through screw sight hole, is punched to bone.
The mode of tensioner is not only easy for installation, but also stablizes, and is not likely to produce between drill bushing main body and drill bushing mounting hole elastic different.
Further, specifically, the Tensioning structure is the multiple claws for being symmetricly set on drill bushing main body outer ring, claw and brill
Card slot is formed between set body outer wall, the end of claw is free end, and the root of claw and the outer wall of drill bushing main body are integrally tied
The outside of structure, claw has protrusion, and the most salient point of multiple protrusions of the protrusion on the end of claw, the multiple claw is same
On one circumference, the diameter of the same circumference is d1, and the internal diameter of drill bushing mounting hole is d2, and d2 is slightly less than d1.Since d2 is slightly less than
D1, after drill bushing main body is inserted into drill bushing mounting hole, drill bushing mounting hole can generate extruding to protrusion, due to claw and drill bushing body outer wall
Between be formed with card slot, enable to clawed end portions to draw close to card slot the extruding of protrusion, since the effect of power is mutual convex
Also there is because squeezing the spreading power generated, so that claw tensioner is in drill bushing mounting hole drill bushing mounting hole inner ring in portion.
In order to enable the front end of drill bushing main body can stretch out screw sight hole, and aimed at convenient for drill bushing main body insertion screw
Hole, the end of the claw is towards the rear end of drill bushing main body, and the root of claw is towards the front end of drill bushing main body, the drill bushing main body
Outer ring be additionally provided with the conical surface, the conical surface is relative to claw closer to the front end of drill bushing main body, and the outer diameter of the conical surface from front to back is gradually
It is incremented by, the maximum outside diameter of the conical surface is d3, and d3 is slightly less than d2.
The chuck of evagination is additionally provided on the outer ring of the drill bushing main body, the chuck is located at the rear of claw, drill bushing installation
Hole inner ring is provided with the limited step with chuck cooperation.Chuck can be connected on limited step, and the tensioner cooperation with claw makes
With enabling to drill bushing and diopter more firm, be not easy to misplace.
The invention has the advantages that sighting device drill bushing of the invention, change the fixed drill bushing of conventionally employed circlip and
The mode of diopter realizes the fixation of drill bushing and diopter, not only installation side by the way that Tensioning structure is arranged in drill bushing main body outer ring
Just, and it is more stable using tensioner mode, be not likely to produce between drill bushing main body and drill bushing mounting hole it is circumferential elastic different, it is thorough
Bottom avoids the generation of the phenomenon that circlip pop-up.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of diopter of the present invention.
Fig. 2 is enlarged drawing at A in Fig. 1.
Fig. 3 is the structural schematic diagram of sighting device drill bushing of the present invention.
Fig. 4 is enlarged drawing at B in Fig. 3.
Fig. 5 is the schematic perspective view of sighting device drill bushing of the present invention.
Fig. 6 is the assembling structure schematic diagram of sighting device drill bushing of the present invention.
Fig. 7 is the C-C cross-sectional view of Fig. 6.
In figure: 1, diopter, 11, drill bushing mounting hole, 111, limited step, 2, drill bushing main body, 21, screw sight hole, 22,
Claw, 221, protrusion, 23, card slot, 24, the conical surface, 25, chuck.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
It as shown in Figure 1, 2, is optimum embodiment of the present invention, a kind of sighting device drill bushing, for being mounted on diopter 1,
Drill bushing mounting hole 11 is offered on diopter 1, drill bushing mounting hole 11 is through-hole, and sighting device drill bushing includes drill bushing main body 2, drill bushing
The outer ring of main body 2 is provided with Tensioning structure, and drill bushing main body 2 is plugged on drill bushing by the Tensioning structure of the outer ring of drill bushing main body 2 and pacifies
It fills in hole 11, one end that drill bushing main body 2 is introduced into drill bushing mounting hole 11 is the front end of drill bushing main body 2, enters after drill bushing main body 2 and bores
The one end for covering mounting hole 11 is the rear end of drill bushing main body 2, and front end to the rear end of drill bushing main body 2 offers screw sight hole 21, spiral shell
Nail sight hole 21 is through-hole.
Tensioning structure is the multiple claws 22 for being symmetricly set on 2 outer ring of drill bushing main body, and multiple claws 22 are circumferential uniformly distributed preferred
For four claws 22, card slot 23 is formed between 2 outer wall of claw 22 and drill bushing main body, the end of claw 22 is free end, claw
Root and drill bushing main body 2 outer wall integral structure, the outside of claw 22 has protrusion 221, and protrusion 221 is close to the end of claw 22
Portion, on the same circumference, the diameter of same circumference is that (protrusion 221 is not by d1 to the most salient point of multiple protrusions 221 on multiple claws 22
The diameter being extruded), the internal diameter of drill bushing mounting hole 11 is d2, and d2 is slightly less than d1.
The end of claw 22 is towards the rear end of drill bushing main body 2, and the root of claw is towards the front end of drill bushing main body 2, drill bushing master
The outer ring of body 2 is additionally provided with the conical surface 24, and the conical surface 24 is relative to claw 22 closer to the front end of drill bushing main body 2, and the conical surface 24 is from forward direction
Outer diameter afterwards is gradually incremented by, and the maximum outside diameter of the conical surface 24 is d3, and d3 is slightly less than d2.Drill bushing body outer diameter before the conical surface 24 is less than cone
Drill bushing body outer diameter behind face 24.
The chuck 25 of evagination is additionally provided on the outer ring of drill bushing main body 2, chuck 25 is located at the rear of claw 22, drill bushing mounting hole
11 inner rings are provided with the limited step 111 cooperated with chuck 25.
The rear shape of the chuck 25 of drill bushing main body 2 is generally rectangular shaped, since the projected square part does not need to enter drill bushing peace
It fills in hole 11, therefore its contour structures is not limited to that.
When use: the front end of drill bushing main body 2 is introduced into drill bushing mounting hole 11, claw 22 by limited step 111 after
The inner ring of drill bushing mounting hole 11, which is opened up, generates extruding to the protrusion 221 of claw 22, due between 2 outer wall of claw 22 and drill bushing main body
It is formed with card slot 23, therefore enables to 22 end of claw to draw close to card slot 23 extruding of protrusion 221, since the effect of power is
Also there is because squeezing the spreading power generated, so that 22 tensioner of claw is being bored 11 inner ring of drill bushing mounting hole in mutual protrusion 221
It covers in mounting hole, after chuck 25 is connected on limited step 111, can further limit the forward movement of drill bushing main body 2, at this time
Drilling equipment can protrude into screw sight hole 21, punch to bone.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (3)
1. a kind of sighting device drill bushing offers drill bushing mounting hole (11) for being mounted on diopter (1) on diopter (1),
The drill bushing mounting hole (11) is through-hole, it is characterised in that: the sighting device drill bushing includes drill bushing main body (2), drill bushing main body
(2) outer ring is provided with Tensioning structure, and the drill bushing main body (2) is plugged on by the Tensioning structure of the outer ring of drill bushing main body (2)
In drill bushing mounting hole (11), the drill bushing main body (2) is introduced into one end of drill bushing mounting hole (11) as before drill bushing main body (2)
End, drill bushing main body (2) are the rear end of drill bushing main body (2), the front end of drill bushing main body (2) into the one end of drill bushing mounting hole (11) afterwards
It being offered screw sight hole (21) to rear end, screw sight hole (21) is through-hole,
The Tensioning structure is the multiple claws (22) for being symmetricly set on drill bushing main body (2) outer ring, claw (22) and drill bushing main body
(2) be formed between outer wall card slot (23), the end of claw (22) is free end, the root of claw and drill bushing main body (2) it is outer
The outside of wall integral structure, claw (22) has protrusion (221), the end of protrusion (221) close to claw (22), the multiple card
On the same circumference, the diameter of the same circumference is d1, drill bushing mounting hole to the most salient point of multiple protrusions (221) on pawl (22)
(11) internal diameter is d2, and d2 is slightly less than d1.
2. sighting device drill bushing as described in claim 1, it is characterised in that: the end of the claw (22) is towards drill bushing main body
(2) rear end, towards the front end of drill bushing main body (2), the outer ring of the drill bushing main body (2) is additionally provided with the conical surface for the root of claw
(24), the conical surface (24) is relative to claw (22) closer to the front end of drill bushing main body (2), and the outer diameter of the conical surface (24) from front to back is gradually
It is incremented by, the maximum outside diameter of the conical surface (24) is d3, and d3 is slightly less than d2.
3. sighting device drill bushing as described in claim 1, it is characterised in that: be additionally provided on the outer ring of the drill bushing main body (2)
The chuck (25) of evagination, the chuck (25) are located at the rear of claw (22), and drill bushing mounting hole (11) inner ring is provided with and chuck
(25) limited step (111) cooperated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610599058.1A CN106137316B (en) | 2016-07-28 | 2016-07-28 | Sighting device drill bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610599058.1A CN106137316B (en) | 2016-07-28 | 2016-07-28 | Sighting device drill bushing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106137316A CN106137316A (en) | 2016-11-23 |
| CN106137316B true CN106137316B (en) | 2019-04-19 |
Family
ID=58060959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610599058.1A Active CN106137316B (en) | 2016-07-28 | 2016-07-28 | Sighting device drill bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106137316B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112998803B (en) * | 2021-02-05 | 2022-05-20 | 河南省洛阳正骨医院（河南省骨科医院） | Porous bone device that cuts of wicresoft's formula of embracing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244318A (en) * | 2007-02-12 | 2008-08-20 | 重庆海扶(Hifu)技术有限公司 | Headgear for ultrasonic therapy |
| CN201182625Y (en) * | 2008-02-24 | 2009-01-21 | 杨建军 | Pressure directional bit arbor for orthopaedics |
| CN101955067A (en) * | 2009-07-16 | 2011-01-26 | 北京银融科技有限责任公司 | Transmitter and using method and transmission method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2469899Y (en) * | 2001-03-07 | 2002-01-09 | 邓国勋 | Dilator for drawing-out residual screw in bone |
| CN200954129Y (en) * | 2006-05-17 | 2007-10-03 | 深圳安科高技术股份有限公司 | Spine guiding device for orthopedic operation navigation system and operation apparatus |
| CN2922822Y (en) * | 2006-06-01 | 2007-07-18 | 常州华森医疗器械有限公司 | Tibia intramedullary nail and quick-aiming device |
| US9855064B2 (en) * | 2013-03-14 | 2018-01-02 | Arthrex, Inc. | Drill guide assembly |
| CN206166987U (en) * | 2016-07-28 | 2017-05-17 | 创生医疗器械（中国）有限公司 | Drill bushing for sight |
-
2016
- 2016-07-28 CN CN201610599058.1A patent/CN106137316B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244318A (en) * | 2007-02-12 | 2008-08-20 | 重庆海扶(Hifu)技术有限公司 | Headgear for ultrasonic therapy |
| CN201182625Y (en) * | 2008-02-24 | 2009-01-21 | 杨建军 | Pressure directional bit arbor for orthopaedics |
| CN101955067A (en) * | 2009-07-16 | 2011-01-26 | 北京银融科技有限责任公司 | Transmitter and using method and transmission method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106137316A (en) | 2016-11-23 |
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