CN106890023A - It is a kind of to be suitable to the spinal bone screw pitman extractor of small otch - Google Patents
It is a kind of to be suitable to the spinal bone screw pitman extractor of small otch Download PDFInfo
- Publication number
- CN106890023A CN106890023A CN201710200217.0A CN201710200217A CN106890023A CN 106890023 A CN106890023 A CN 106890023A CN 201710200217 A CN201710200217 A CN 201710200217A CN 106890023 A CN106890023 A CN 106890023A
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- China
- Prior art keywords
- swing arm
- hinged
- bone screw
- thick cylinder
- disk
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- 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
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- 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
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (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)
- Neurology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of spinal bone screw pitman extractor suitable for small otch, including：Thick cylinder, two clamps and interior swing arm；Through hole is provided with thick cylinder, the two ends of thick cylinder are respectively holding end and working end, groove is provided with the end face of its working end, and the bottom of groove is connected with through hole；The two 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 two ends of groove；Interior swing arm is stretched into through hole, and the two ends of interior swing arm are respectively arranged with threaded post and handle, and handle exposes outside the holding end of thick cylinder, and threaded post is stretched between two hinged disks, and are meshed with the gear teeth on two hinged disks.The spinal bone screw pitman extractor for being suitable to small otch disclosed by the invention can not only avoid wound from being extended and organize excessively being pulled, also increase the grasping force of clamp, make mode connects for screw rod be difficult to slip when in use, solve the problems, such as that existing apparatus is difficult to hold tightly.
Description
Technical field
The invention belongs to medical surgical instrument field, it is related to a kind of be suitable to the spinal bone screw pitman extractor of small otch.
Background technology
Currently, developing rapidly with medical domain, the theory of spinal operation is increasingly intended to minimally-invasive treatment, that is, reaching
Tried one's best while to expected therapeutic effect and reduce the wound that patient is subject to.To meet this clinical needs, a large amount of Minimally Invasive Surgery devices
Tool is invented and is applied in the middle of spinal operation, significantly reduces the operation wound of patient.Current epispinal mode connects for screw
The medicine equipment that uses is essentially and holds rod device or Ke Ke is clamped when rod takes out, but under normal circumstances, they or because otch is too small
And wound can not be entered, it is difficult to grasp mode connects for screw rod；Or because grasping force is not enough, that is, allow to effectively be grabbed into wound
Mode connects for screw rod is held, in actual clinical, is generally required to expand operative incision or is excessively pulled in limited incision, it is right
Patient causes great operation wound, and the minimally-invasive treatment theory with spinal operation is not corresponded.
The content of the invention
In order to solve problem above, the spinal bone screw pitman extractor of small otch is suitable to the invention provides a kind of, its
Simple structure, operation is reliable, and can meet the taking-up behaviour that epispinal mode connects for screw rod is completed under small incision mode
Make.
In order to achieve the above object, the present invention is solved using following technical scheme.
A kind of spinal bone screw pitman extractor suitable for small otch, including：Thick cylinder, two clamps and interior swing arm,
Through hole is provided with the thick cylinder, to hold end, the other end is working end, the work of the thick cylinder for one end of the thick cylinder
Make to be provided with groove on the end face at end, the bottom of the groove is connected with the through hole；Two clamps, each described 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, is hinged described in two
Disk is respectively hinged at the two ends of the groove；The interior swing arm is stretched into the through hole, and the two ends of the interior swing arm are respectively
One end and the second end, are provided with threaded post in the first end of the interior swing arm, handle is connected with the second end of the interior swing arm,
The handle is located at outside the holding end of the thick cylinder, and the first end of the interior swing arm is stretched between two hinged disks, and
It is meshed with the gear teeth on two hinged disks by the threaded post.
Spinal bone screw pitman extractor suitable for small otch of the invention, applying art personnel can on the other hand hold heavy wall
Cylinder, another hand control handle makes interior swing arm be rotated in the through hole of thick cylinder, interior swing arm when rotated, the spiral shell in its first end
Line post will drive two clamps in groove to open or clamp by meshing relation.Backbone spiral shell suitable for small otch of the invention
The monnolithic case for following closely pitman extractor is fixed, and its outside is smooth thick cylinder, and diameter is smaller, conveniently applies art personnel smooth
End is stretched into and chosen in the wound of patient epispinal mode connects for screw rod, two clamps of its end when opening or clamping not
The profile size of thick cylinder can be influenceed, wound can be avoided to be extended and organize and excessively pulled；And due to clamp open or
It is that the threaded post by rotating drives the hinged disk with gear teeth sum to swing to realize the release and clamping of clamp to clamp cardinal principle,
Increase the grasping force of clamp, it is ensured that the reliability of clamp clamp screws pitman, make mode connects for screw rod be difficult to slip, solve
Existing apparatus is difficult the problem held tightly.
As preferred, two bracelets are symmetrically arranged with the side wall at the holding end of the thick cylinder.
Spinal bone screw pitman extractor suitable for small otch of the invention, on the side wall that thick cylinder holds end
Be symmetrically arranged with two bracelets, apply art personnel can finger hold thick cylinder through bracelet, its structure is attractive in appearance, conveniently applies art personnel
One hand is rotated and drawing thick cylinder is come mode connects for screw rod of choosing.
Used as preferred, opposite side is provided with jaws, the inner surface of the jaws on two clamps of the clamp
It is provided with grid line.
Spinal bone screw pitman extractor suitable for small otch of the invention, it is opposite on two pincers points of clamp
Side is provided with jaws, and the inner surface setting of jaws has grid line, increase clamp and the contact area of mode connects for screw rod, increases
Inner jaw surfaces and the frictional force of mode connects for screw rod outer surface, can prevent the slippage of mode connects for screw rod.
Used as preferred, the root of the threaded post in the first end of the interior swing arm is provided with position-arresting disk, the limit
Position disk is located in the groove, the diameter with diameter greater than the through hole of the position-arresting disk.
Spinal bone screw pitman extractor suitable for small otch of the invention, the screw thread in the first end of interior swing arm
The root of post is provided with position-arresting disk, and position-arresting disk is located in groove, and swing arm is rotated in through hole in without prejudice to, and position-arresting disk diameter
More than the diameter of through hole, can prevent interior swing arm from being pulled out from the holding end of thick cylinder by art personnel are applied.
Used as preferred, the handle is T-bar.
Spinal bone screw pitman extractor suitable for small otch of the invention, handle can be and inward turning bar body
Perpendicular T-bar, its simple structure conveniently applies art personnel and reverses T-bar to control the rotation of interior swing arm.
Used as preferred, the handle is disk, and the edge of the disk is provided with grid line.
Spinal bone screw pitman extractor suitable for small otch of the invention, handle can also be disk, disk
Edge be provided with grid line, it is possible to increase frictional force, prevent from applying the hand of art personnel to be skidded in rotating circular disk.
Brief description of the drawings
The present invention is described in further details with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 is a kind of front cross-sectional knot of the embodiment for being suitable to the spinal bone screw pitman extractor of small otch 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 grooves；103 bracelets；2 clamps；201 hinged disks；202 pincers points；
203 jaws；Swing arm in 3；301 threaded posts；302 handles；303 position-arresting disks.
Specific embodiment
With reference to Fig. 1 and Fig. 2, embodiments of the invention propose that a kind of spinal bone screw pitman suitable for small otch takes out
Device, including：Through hole 101, the one of the thick cylinder 1 are provided with 1, two clamps 2 of thick cylinder and interior swing arm 3, the thick cylinder 1
Hold to hold end, the other end is working end, and groove 102, the groove are provided with the end face of the working end of the thick cylinder 1
102 bottom is connected with the through hole 101；Two clamps 2, one end of 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 cut with scissors respectively
It is connected on the two ends of the groove 102；The interior swing arm 3 is stretched into the through hole 101, and the two ends of the interior swing arm 3 are respectively
One end and the second end, are provided with threaded post 301 in the first end of the interior swing arm 3, be connected with the second end of the interior swing arm 3
Handle 302, the handle 302 is located at outside the holding end of the thick cylinder 1, and the first end of the interior swing arm 3 is stretched into described in two
Between hinged disk 201, and it is meshed with the gear teeth on two hinged disks 201 by the threaded post 301.
In the embodiment above, applying art personnel can on the other hand hold thick cylinder 1, and another hand control handle 302 makes interior swing arm 3
The rotation in the through hole 101 of thick cylinder 1, when rotated, the threaded post 301 in its first end will be by meshing relation for interior swing arm 3
Two clamps 2 in groove 102 are driven to open or clamp.Spinal bone screw pitman extractor suitable for small otch of the invention
Monnolithic case fix, its outside is smooth thick cylinder 1, and diameter is smaller, conveniently applies art personnel and end smoothly is stretched into disease
Chosen in the wound of people epispinal mode connects for screw rod, two clamps 2 of its end do not interfere with heavy wall when opening or clamping
The profile size of cylinder 1, can avoid wound from being extended and organize and excessively be pulled；And opening or clamp main due to clamp 2
Principle is that the threaded post 301 by rotating drives the hinged disk 201 with gear teeth sum to swing to realize the release and clamping of clamp 2,
Increase the grasping force of clamp 2, it is ensured that the reliability of the clamp screws pitman of clamp 2, make pitman be difficult to slip, solve
Existing apparatus is difficult the problem held tightly.
According to one embodiment of present invention, two bracelets are symmetrically arranged with the side wall at the holding end of the thick cylinder 1
103。
In the embodiment above, two bracelets 103 are symmetrically arranged with the side wall that end is held in thick cylinder 1, art personnel are applied
Can finger hold thick cylinder 1 through bracelet 103, its structure is attractive in appearance, conveniently applies that art personnel are singlehanded to be rotated and drawing thick cylinder 1
Choose epispinal mode connects for screw rod.
With reference to Fig. 1, according to one embodiment of present invention, opposite side is provided with two clamps of the clamp 22
Jaws 203, the inner surface setting of the jaws 203 has grid line.
According to one embodiment of present invention, opposite side is provided with jaws 203 on two pincers points 201 of clamp 2, and
The inner surface setting of jaws 203 has a grid line, the contact area of increase clamp 2 and mode connects for screw rod, the increase inner surface of clamp 2 with
The frictional force of the outer surface of mode connects for screw rod, can prevent mode connects for screw rod from slipping.
According to one embodiment of present invention, the root of the threaded post 301 in the first end of the interior swing arm 3 is set
Limited location disk 303, the position-arresting disk 303 be located at the groove 102 in, the position-arresting disk 303 with diameter greater than the through hole 101
Diameter.
In the embodiment above, the root of the threaded post 301 in the first end of interior swing arm 3 is provided with position-arresting disk 303, spacing
Disk 303 is located in groove 102, and swing arm 3 is rotated in the through hole 101 in without prejudice to, and position-arresting disk 303 with diameter greater than through hole 101
Diameter, can prevent interior swing arm 3 from being applied art personnel and be pulled out from the holding end of thick cylinder 1.
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 the body of interior swing arm 3, its simple structure, side
Just art personnel are applied to reverse T-bar to control the rotation of interior swing arm 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 can also be disk, and the edge of disk is provided with grid line, it is possible to increase friction
Power, prevents from applying the hand of art personnel to be skidded in rotating circular disk.
Obviously, those skilled in the art can carry out various changes and modification without deviating from essence of the invention to the present invention
God and scope.So, if of the invention these change the scope for belonging to the claims in the present invention and its equivalent technologies with modification
Within, then the present invention is also intended to comprising these changes and modification.
Claims (6)
1. a kind of spinal bone screw pitman extractor suitable for small otch, it is characterised in that including：
Through hole (101) is provided with thick cylinder (1), the thick cylinder (1), one end of the thick cylinder (1) is another to hold end
It is working end to hold, and is provided with groove (102) on the end face of the working end of the thick cylinder (1), the bottom of the groove (102) with
The through hole (101) is connected；
Two clamps (2), one end of each clamp (2) is provided with hinged disk (201), and the other end clamps sharp (202), institute to have
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 groove (102)
End；
Interior swing arm (3), the interior swing arm (3) is stretched into the through hole (101), and the two ends of the interior swing arm (3) are respectively first
End and the second end, are provided with threaded post (301) in the first end of the interior swing arm (3), connect on the second end of the interior swing arm (3)
Be connected to handle (302), the handle (302) outside the holding end of the thick cylinder (1), the first end of the interior swing arm (3)
Stretch between two hinged disks (201), and by the wheel in the threaded post (301) and two hinged disks (201)
Tooth is meshed.
2. the spinal bone screw pitman extractor suitable for small otch according to claim 1, it is characterised in that the thickness
Two bracelets (103) are symmetrically arranged with the side wall at the holding end of wall cylinder (1).
3. the spinal bone screw pitman extractor suitable for small otch according to claim 1, it is characterised in that two institutes
State side opposite on pincers point (202) of clamp (2) and be provided with jaws (203), the inner surface setting of the jaws (203) has net
Check.
4. the spinal bone screw pitman extractor suitable for small otch according to claim 1, it is characterised in that in described
The root of the threaded post (301) in the first end of swing arm (3) is provided with position-arresting disk (303), and the position-arresting disk (303) is located at
In the groove (102), the diameter with diameter greater than the through hole (101) of the position-arresting disk (303).
5. the spinal bone screw pitman extractor suitable for small otch according to claim 1, it is characterised in that the hand
Handle (302) is T-bar.
6. the spinal bone screw pitman extractor suitable for small otch according to claim 1, it is characterised 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 true CN106890023A (en) | 2017-06-27 |
| CN106890023B 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108703802A (en) * | 2018-06-15 | 2018-10-26 | 梁兆国 | A kind of orthopaedics internal fixation screw withdrawing 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 |
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| EP0945105A1 (en) * | 1998-03-26 | 1999-09-29 | Nivarox-FAR S.A. | Rack guide for a sampling device, e.g. a biopsy forceps |
| 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 |
| CN103610488B (en) * | 2013-10-24 | 2015-10-28 | 上海交通大学 | Laparoscope pincers binding clip |
| WO2016136676A1 (en) * | 2015-02-26 | 2016-09-01 | オリンパス株式会社 | Medical treatment instrument |
| 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 |
-
2017
- 2017-03-29 CN CN201710200217.0A patent/CN106890023B/en not_active Expired - Fee Related
Patent Citations (10)
| 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 |
| 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 |
| CN103610488B (en) * | 2013-10-24 | 2015-10-28 | 上海交通大学 | Laparoscope pincers binding clip |
| WO2016136676A1 (en) * | 2015-02-26 | 2016-09-01 | オリンパス株式会社 | Medical treatment instrument |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108703802A (en) * | 2018-06-15 | 2018-10-26 | 梁兆国 | A kind of orthopaedics internal fixation screw withdrawing device |
| 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 |
| CN110051419B (en) * | 2019-04-29 | 2024-05-14 | 河北医科大学第三医院 | In-situ rod shearing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106890023B (en) | 2019-08-27 |
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