CN106890023B - A kind of spinal bone screw pitman extractor suitable for small notch - Google Patents
A kind of spinal bone screw pitman extractor suitable for small notch Download PDFInfo
- Publication number
- CN106890023B CN106890023B CN201710200217.0A CN201710200217A CN106890023B CN 106890023 B CN106890023 B CN 106890023B CN 201710200217 A CN201710200217 A CN 201710200217A CN 106890023 B CN106890023 B CN 106890023B
- Authority
- CN
- China
- Prior art keywords
- handle
- hinged
- disk
- thick cylinder
- spinner handle
- 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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
-
- 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
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
-
- 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
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8875—Screwdrivers, spanners or wrenches
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
-
- 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 invention discloses a kind of spinal bone screw pitman extractors suitable for small notch, comprising: thick cylinder, two clamps and interior spinner handle；Through-hole is provided in thick cylinder, the both ends of thick cylinder are respectively to hold end and working end, are provided with through slot on the end face of working end, the bottom of through slot is connected with through-hole；The both ends of each clamp are respectively arranged with hinged disk and clamp, and the edge of hinged disk is provided with the gear teeth, and two hinged disks are respectively hinged at the both ends of through slot；Interior spinner handle protrudes into through-hole, and the both ends of interior spinner handle are respectively arranged with threaded post and handle, and handle exposes outside the holding end of thick cylinder, and threaded post protrudes between two hinged disks, and is meshed with the gear teeth on two hinged disks.Spinal bone screw pitman extractor disclosed by the invention suitable for small notch not only can avoid wound when in use and be extended and organize excessively to be pulled, and also increases the grasping force of clamp, screw pitman is made to be difficult to slip, solve the problems, such as that existing instrument is not easy to hold tightly.
Description
Technical field
The invention belongs to medical surgical instrument fields, are related to a kind of spinal bone screw pitman extractor suitable for small notch.
Background technique
Currently, it as the rapid development of medical domain, the theory of spinal operation are increasingly intended to minimally-invasive treatment, that is, is reaching
Reduce the wound that patient is subject to while to expected therapeutic effect to the greatest extent.To meet this clinical needs, a large amount of Minimally Invasive Surgery devices
Tool is invented and is applied in spinal operation, and the operation wound of patient is significantly reduced.Epispinal screw connection at present
The medical instrument that uses essentially holds stick device or Ke Ke pincers when stick takes out, but under normal conditions, they or because notch is too small
Without can enter wound, it is difficult to grasp screw pitman；Or because of grasping force deficiency, even if being able to enter wound can not effectively grab
Screw pitman is held, in actual clinical, generally requires to expand operative incision or excessively be pulled in limited incision, it is right
Patient causes great operation wound, is not consistent with the minimally-invasive treatment theory of spinal operation.
Summary of the invention
In order to solve problem above, the present invention provides a kind of spinal bone screw pitman extractor suitable for small notch,
Structure is simple, and operation is reliable, and can satisfy the taking-up behaviour that epispinal screw pitman is completed under small notch invasive manner
Make.
In order to achieve the above object, the present invention is resolved using following technical scheme.
A kind of spinal bone screw pitman extractor suitable for small notch, comprising: thick cylinder, two clamps and interior spinner handle,
Through-hole is provided in the thick cylinder, one end of the thick cylinder is to hold end, and the other end is working end, the work of the thick cylinder
Make to be provided with through slot on the end face at end, the bottom of the through slot is connected with the through-hole；Two clamps, each pincers
One end of folder is provided with hinged disk, and the other end is provided with pincers point, and the edge of the hinged disk is provided with the gear teeth, and two described hinged
Disk is respectively hinged at the both ends of the through slot；The interior spinner handle protrudes into the through-hole, and the both ends of the interior spinner handle are respectively
One end and second end are provided with threaded post in the first end of the interior spinner handle, are connected with handle in the second end of the interior spinner handle,
The handle is located at outside the holding end of the thick cylinder, and the first end of the interior spinner handle protrudes between two hinged disks, and
It is meshed by the threaded post with the gear teeth on two hinged disks.
Spinal bone screw pitman extractor according to the present invention suitable for small notch, heavy wall can be held on the other hand by applying art personnel
Cylinder, another hand control handle rotate interior spinner handle in the through-hole of thick cylinder, interior spinner handle when rotated, the spiral shell in first end
Line column will drive two clamps in through slot to open or clamp by meshing relation.Backbone spiral shell suitable for small notch of the invention
The monnolithic case of nail pitman extractor is fixed, and outside is smooth thick cylinder, and diameter is smaller, and it is smooth conveniently to apply art personnel
End protruded into the wound of patient to epispinal screw pitman of choosing, two clamps of end in opening or clamping not
It will affect the shape size of thick cylinder, avoidable wound is extended and organizes excessively to be pulled；And due to the opening of clamp or
Clamping cardinal principle is the release and clamping swung by hinged disk of the threaded post driving with gear teeth sum rotated to realize clamp,
The grasping force of clamp is increased, ensure that the reliability of clamp clamp screws pitman, screw pitman is made to be difficult to slip, is solved
Existing instrument is not easy the problem of holding tightly.
Preferably, being symmetrical arranged on the side wall at the holding end of the thick cylinder, there are two bracelets.
Spinal bone screw pitman extractor according to the present invention suitable for small notch, on the side wall that thick cylinder holds end
Be symmetrical arranged there are two bracelet, apply art personnel can finger pass through bracelet to hold thick cylinder, structure is beautiful, conveniently applies art personnel
One hand rotation and drawing thick cylinder are come screw pitman of choosing.
Preferably, side opposite on the clamp of two clamps is provided with clamping opening, the inner surface of the clamping opening
It is provided with grid line.
Spinal bone screw pitman extractor according to the present invention suitable for small notch, it is opposite on the pincers point of two clamps
Side is provided with clamping opening, and the inner surface of clamping opening is provided with grid line, increases the contact area of clamp and screw pitman, increases
The frictional force of inner jaw surfaces and screw pitman outer surface, can prevent the slippage of screw pitman.
Preferably, the root of the threaded post in the first end of the interior spinner handle is provided with position-arresting disk, the limit
Position disk is located in the through slot, and the diameter of the position-arresting disk is greater than the diameter of the through-hole.
Spinal bone screw pitman extractor according to the present invention suitable for small notch, the screw thread in the first end of interior spinner handle
The root of column is provided with position-arresting disk, and position-arresting disk is located in through slot, does not interfere inward turning bar to rotate in through-hole, and the diameter of position-arresting disk
Greater than the diameter of through-hole, it can prevent interior spinner handle from being applied art personnel and be pulled out from the holding end of thick cylinder.
Preferably, the handle is T-bar.
Spinal bone screw pitman extractor according to the present invention suitable for small notch, handle can be and inward turning bar body
Perpendicular T-bar, structure is simple, conveniently applies art personnel and reverses T-bar to control the rotation of interior spinner handle.
Preferably, the handle is disk, the edge of the disk is provided with grid line.
Spinal bone screw pitman extractor according to the present invention suitable for small notch, handle may be disk, disk
Edge be provided with grid line, it is possible to increase frictional force prevents the hand skidding in rotating circular disk for applying art personnel.
Detailed description of the invention
The present invention is described in further details in the following with reference to the drawings and specific embodiments.
Fig. 1 is a kind of front cross-sectional knot of embodiment of the spinal bone screw pitman extractor suitable for small notch of the invention
Structure schematic diagram；
Fig. 2 is the side structure schematic diagram of Fig. 1；
In fig. 1 and 2: 1 thick cylinder；101 through-holes；102 through slots；103 bracelets；2 clamps；201 hinged disks；202 pincers points；
203 clamping opening；Spinner handle in 3；301 threaded posts；302 handles；303 position-arresting disks.
Specific embodiment
With reference to Fig. 1 and Fig. 2, the embodiment of the present invention proposes that a kind of spinal bone screw pitman suitable for small notch takes out
Device, comprising: 1, two clamp 2 of thick cylinder and interior spinner handle 3 are provided with through-hole 101 in the thick cylinder 1, and the one of the thick cylinder 1
To hold end, the other end is working end, and through slot 102, the through slot are provided on the end face of the working end of the thick cylinder 1 at end
102 bottom is connected with the through-hole 101；One end of two clamps 2, each clamp 2 is provided with hinged disk
201, the other end is provided with pincers point 201, and the edge of the hinged disk 201 is provided with the gear teeth, and two hinged disks 201 are cut with scissors respectively
It connects at the both ends of the through slot 102；The interior spinner handle 3 protrudes into the through-hole 101, and the both ends of the interior spinner handle 3 are respectively
One end and second end are provided with threaded post 301 in the first end of the interior spinner handle 3, are connected in the second end of the interior spinner handle 3
Handle 302, the handle 302 are located at outside the holding end of the thick cylinder 1, and the first end of the interior spinner handle 3 protrudes into described in two
Between hinged disk 201, and it is meshed by the threaded post 301 with the gear teeth on two hinged disks 201.
In the embodiment above, thick cylinder 1 can be held on the other hand by applying art personnel, and another hand control handle 302 makes interior spinner handle 3
It is rotated in the through-hole 101 of thick cylinder 1, when rotated, the threaded post 301 in first end will pass through meshing relation to interior spinner handle 3
Two clamps 2 in through slot 102 are driven to open or clamp.Spinal bone screw pitman extractor suitable for small notch of the invention
Monnolithic case fix, outside be smooth thick cylinder 1, diameter is smaller, conveniently applies art personnel and disease is smoothly protruded into end
It chooses in the wound of people epispinal screw pitman, two clamps 2 of end will not influence heavy wall in opening or clamping
The shape size of cylinder 1, avoidable wound are extended and organize excessively to be pulled；And it due to the opening of clamp 2 or clamps main
Principle is the release and clamping swung by hinged disk 201 of the driving of threaded post 301 with gear teeth sum rotated to realize clamp 2,
The grasping force of clamp 2 is increased, the reliability of 2 clamp screws pitman of clamp is ensure that, makes pitman be difficult to slip, solve
Existing instrument is not easy the problem of holding tightly.
According to one embodiment of present invention, bracelet there are two being symmetrical arranged on the side wall at the holding end of the thick cylinder 1
103。
In the embodiment above, bracelet 103 there are two being symmetrical arranged on the side wall that thick cylinder 1 holds end, applies art personnel
Can finger pass through bracelet 103 to hold thick cylinder 1, structure is beautiful, conveniently applies the rotation of art personnel's one hand and drawing thick cylinder 1
It chooses epispinal screw pitman.
With reference to Fig. 1, according to one embodiment of present invention, opposite side is provided on the clamp 2 of two clamps 2
The inner surface of clamping opening 203, the clamping opening 203 is provided with grid line.
According to one embodiment of present invention, opposite side is provided with clamping opening 203 on the pincers point 201 of two clamps 2, and
The inner surface of clamping opening 203 is provided with grid line, increases the contact area of clamp 2 and screw pitman, increase 2 inner surface of clamp and
The frictional force of the outer surface of screw pitman can prevent screw pitman from slipping.
According to one embodiment of present invention, the root setting of the threaded post 301 in the first end of the interior spinner handle 3
There is position-arresting disk 303, the position-arresting disk 303 is located in the through slot 102, and the diameter of the position-arresting disk 303 is greater than the through-hole 101
Diameter.
In the embodiment above, the root of the threaded post 301 in the first end of interior spinner handle 3 is provided with position-arresting disk 303, limit
Disk 303 is located in through slot 102, and inward turning bar 3 is not interfered to rotate in through-hole 101, and the diameter of position-arresting disk 303 is greater than through-hole 101
Diameter, can prevent interior spinner handle 3 applied art personnel from the holding end of thick cylinder 1 pull out.
With reference to Fig. 1 and Fig. 2, according to one embodiment of present invention, the handle 302 is T-bar.
In the embodiment above, handle 302 can be the T-bar perpendicular with interior 3 ontology of spinner handle, and structure is simple, side
Just art personnel are applied and reverse T-bar to control the rotation of interior spinner handle 3.
According to one embodiment of present invention, the handle 302 is disk, and the edge of the disk is provided with grid line.
In the embodiment above, handle 302 or disk, the edge of disk are provided with grid line, it is possible to increase friction
Power prevents the hand skidding in rotating circular disk for applying art personnel.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modification and variations of the invention belong to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (4)
1. a kind of spinal bone screw pitman extractor suitable for small notch characterized by comprising
Thick cylinder (1), the thick cylinder (1) is interior to be provided with through-hole (101), and one end of the thick cylinder (1) is to hold end, another
End is working end, is provided with through slot (102) on the end face of the working end of the thick cylinder (1), the bottom of the through slot (102) with
The through-hole (101) is connected；
One end of two clamps (2), each clamp (2) is provided with hinged disk (201), and the other end is to have pincers point (202), institute
The edge for stating hinged disk (201) is provided with the gear teeth, and two hinged disks (201) are respectively hinged at the two of the through slot (102)
End；
Interior spinner handle (3), the interior spinner handle (3) are protruded into the through-hole (101), and the both ends of the interior spinner handle (3) are respectively first
End and second end are provided with threaded post (301) in the first end of the interior spinner handle (3), connect in the second end of the interior spinner handle (3)
It is connected to handle (302), the handle (302) is located at outside the holding end of the thick cylinder (1), the first end of the interior spinner handle (3)
It protrudes between two hinged disks (201), and passes through the threaded post (301) and the wheel on two hinged disks (201)
Tooth is meshed；
The root of the threaded post (301) in the first end of the interior spinner handle (3) is provided with position-arresting disk (303), the limit
Disk (303) is located in the through slot (102), and the diameter of the position-arresting disk (303) is greater than the diameter of the through-hole (101)；
The handle (302) is T-bar.
2. the spinal bone screw pitman extractor according to claim 1 suitable for small notch, which is characterized in that the thickness
There are two being symmetrical arranged on the side wall at the holding end of wall cylinder (1) bracelet (103).
3. the spinal bone screw pitman extractor according to claim 1 suitable for small notch, which is characterized in that two institutes
It states side opposite on the pincers sharp (202) of clamp (2) to be provided with clamping opening (203), the inner surface of the clamping opening (203) is provided with net
Check.
4. the spinal bone screw pitman extractor according to claim 1 suitable for small notch, which is characterized in that the hand
Handle (302) is disk, and the edge of the disk is provided with grid line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710200217.0A CN106890023B (en) | 2017-03-29 | 2017-03-29 | A kind of spinal bone screw pitman extractor suitable for small notch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710200217.0A CN106890023B (en) | 2017-03-29 | 2017-03-29 | A kind of spinal bone screw pitman extractor suitable for small notch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106890023A CN106890023A (en) | 2017-06-27 |
| CN106890023B true CN106890023B (en) | 2019-08-27 |
Family
ID=59193874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710200217.0A Expired - Fee Related CN106890023B (en) | 2017-03-29 | 2017-03-29 | A kind of spinal bone screw pitman extractor suitable for small notch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106890023B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108703802B (en) * | 2018-06-15 | 2020-10-30 | 河北北方学院附属第一医院 | Orthopedic internal fixation screw taking-out device |
| CN110051419A (en) * | 2019-04-29 | 2019-07-26 | 河北瑞鹤医疗器械有限公司 | Cut stick device in original position |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2772460Y (en) * | 2005-03-25 | 2006-04-19 | 宋朝晖 | Hollow screw drawing-out device |
| CN202113148U (en) * | 2011-06-27 | 2012-01-18 | 桐庐洲济医疗器械有限公司 | Rod holding forceps |
| CN204600543U (en) * | 2015-04-20 | 2015-09-02 | 江苏安特尔医疗科技有限公司 | New disposable biopsy forceps of endoscope |
| CN104905872A (en) * | 2015-05-12 | 2015-09-16 | 山东威高骨科材料股份有限公司 | Tong head of fog type tongs |
| CN204683757U (en) * | 2015-05-25 | 2015-10-07 | 首都医科大学附属北京朝阳医院 | The forceps of Orthopedic rod |
| CN106175916A (en) * | 2016-07-13 | 2016-12-07 | 苏州苏南捷迈得医疗器械有限公司 | A kind of bone surgery nail-fetching device |
| CN205964134U (en) * | 2016-06-23 | 2017-02-22 | 重庆医科大学附属永川医院 | Rotatory obstetric forceps of gynaecology and obstetrics |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0945105A1 (en) * | 1998-03-26 | 1999-09-29 | Nivarox-FAR S.A. | Rack guide for a sampling device, e.g. a biopsy forceps |
| CN103610488B (en) * | 2013-10-24 | 2015-10-28 | 上海交通大学 | Laparoscope pincers binding clip |
| JP6033516B1 (en) * | 2015-02-26 | 2016-11-30 | オリンパス株式会社 | Medical treatment tool |
-
2017
- 2017-03-29 CN CN201710200217.0A patent/CN106890023B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2772460Y (en) * | 2005-03-25 | 2006-04-19 | 宋朝晖 | Hollow screw drawing-out device |
| CN202113148U (en) * | 2011-06-27 | 2012-01-18 | 桐庐洲济医疗器械有限公司 | Rod holding forceps |
| CN204600543U (en) * | 2015-04-20 | 2015-09-02 | 江苏安特尔医疗科技有限公司 | New disposable biopsy forceps of endoscope |
| CN104905872A (en) * | 2015-05-12 | 2015-09-16 | 山东威高骨科材料股份有限公司 | Tong head of fog type tongs |
| CN204683757U (en) * | 2015-05-25 | 2015-10-07 | 首都医科大学附属北京朝阳医院 | The forceps of Orthopedic rod |
| CN205964134U (en) * | 2016-06-23 | 2017-02-22 | 重庆医科大学附属永川医院 | Rotatory obstetric forceps of gynaecology and obstetrics |
| CN106175916A (en) * | 2016-07-13 | 2016-12-07 | 苏州苏南捷迈得医疗器械有限公司 | A kind of bone surgery nail-fetching device |
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| Publication number | Publication date |
|---|---|
| CN106890023A (en) | 2017-06-27 |
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Granted publication date: 20190827 Termination date: 20200329 |