CN106361424A - Pivot tool - Google Patents
Pivot tool Download PDFInfo
- Publication number
- CN106361424A CN106361424A CN201511018406.3A CN201511018406A CN106361424A CN 106361424 A CN106361424 A CN 106361424A CN 201511018406 A CN201511018406 A CN 201511018406A CN 106361424 A CN106361424 A CN 106361424A
- Authority
- CN
- China
- Prior art keywords
- support bar
- fulcrum
- instrument
- linking arm
- clamping
- 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.)
- Granted
Links
- 230000001681 protective effect Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 abstract 5
- 238000005516 engineering process Methods 0.000 description 4
- 241001079814 Symphyotrichum pilosum Species 0.000 description 2
- 235000004224 Typha angustifolia Nutrition 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 210000003739 neck Anatomy 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 208000002193 Pain Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000001215 vagina Anatomy 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, 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
- A61B17/885—Tools for expanding or compacting bones or discs or cavities therein
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (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 pivot tool, which comprises a first supporting rod and a second supporting rod, wherein one end of the first supporting rod is movably connected to one end of the second supporting rod; and a clamping mechanism is connected to the other end of the first supporting rod and a clamping mechanism is connected to the other end of the second supporting rod. In a using process, the clamping mechanisms are fixedly arranged on a pedicle screw protective casing or other surgical instruments, connection between the first supporting rod and the second supporting rod is fixed after angles are adjusted, so that the first supporting rod and the second supporting rod are relatively fixed, and then connection between the two supporting rods and the clamping mechanisms is fixed, so that the supporting rods and the clamping mechanisms are relatively fixed, so that a function on supporting the pedicle screw protective casing or other surgical instruments is achieved.
Description
Technical field
The present invention relates to medical instruments field, more particularly, to a kind of fulcrum instrument.
Background technology
It is often necessary to adjacent vertebral articulations is strutted by practical dilator in Thoracolumbar disk or cervical operation.Such as neck
In vertebra anterior approach, conventional anterior cervical vertebrae dilator struts the soft tissues such as skin, muscle and two vertebras in operation process
Body, makes the soft tissues such as skin, muscle and intervertebral space expand, facilitates operation to carry out.In the clinical operation of Thoracolumbar disk
Sample needs practical dilator to strut vertebral body.
Clinically, typically first pedicle nail is squeezed into the vertebral articulations needing to strut, then cover on pedicle nail
Protection sleeve.The middle and lower part that dilator is typically erected at protection sleeve is strutted.
But at present, in operation actual mechanical process, when with dilator distraction pedicle screw protective case it is easy to
Pedicle nail is supportted askew, substantially increase the unstability of operation, and easily corresponding vertebral articulations is caused to damage
Wound.
Therefore, those skilled in the art be devoted to exploitation can strengthen pedicle nail stability in strutting operation
Technology, to reduce operation risk.
Content of the invention
In view of the drawbacks described above of prior art, in order to solve with when dilator distraction pedicle screw (protective case)
Stability this technical problem of difference, the invention provides a kind of fulcrum instrument being applied to clinical operation.
For achieving the above object, a kind of fulcrum instrument that the present invention provides, including first support bar and second support bar,
One end of one end of described first support bar and described second support bar is flexibly connected, and described first support bar is another
The other end of one end and described second support bar connects a clamping device respectively.Described clamping device is arranged for pressing from both sides
Hold pedicle nail protective case.
Further, one end of one end of described first support bar and described second support bar is connected by universal joint.
Further, described first support bar include the body of rod connection first end and the second end, described second
Strut includes first end and the second end of body of rod connection, the first end of described first support bar and described second
The first end of support bar is connected by universal joint, and the second end of described first support bar is with described clamping device even
Connect and be connected with another clamping device with the second end of described second support bar.
Further, the first end of described first support bar includes a globe joint, and the of described second support bar
One end includes the sphere of an indent matching with described globe joint, and described globe joint is placed in described indent
In sphere.
Further, the connecting portion (e.g., universal joint) of described first support bar and described second support bar includes
One locking device, described locking device is arranged to be used for limiting described first support bar and described second support bar
Relative motion.
Further, described globe joint has a horizontal through hole, and described locking device includes a threaded rod, stops
Washer and the nut matching with described threaded rod, one end of described threaded rod passes through the through hole of described globe joint
It is fixedly connected the sphere of (e.g., the welding) indent in described second support bar, described stop washer is located at described spiral shell
In the middle of female and described globe joint, described stop washer includes the cambered surface matching with described globe joint.When tightening
During described nut, described nut against stop washer described in described stop washer against described globe joint, thus limiting
Make described first support bar and the relative motion of described second support bar.
Further, the through hole of described globe joint is horn-like, towards the sphere of the indent of described second support bar.
Further, the second end of described first support bar includes a linking arm, and described linking arm passes through a rotating shaft
It is connected to described clamping device.
Further, the second end of described second support bar includes a linking arm, and described linking arm passes through a rotating shaft
It is connected to described clamping device.
Further, one end of described clamping device includes the groove of the described linking arm of a receiving, and described linking arm is deep
Enter in groove, described clamping device is connected to by rotating shaft.Described clamping device and the described arm that connects through can pass through
Described rotating shaft relative motion.
Further, the top of described linking arm is circular arc, also includes one in the described groove of described clamping device
The scotch being matched with the circular arc top of described linking arm, is set between the bottom surface of described scotch and described groove
There is a spring, described spring provides elastic force to make the circular arc to described linking arm for the described scotch top to described scotch
Top.
Further, the contact surface on the circular arc top of described scotch and described linking arm is provided with and cooperates
Occlusion groove.
It is preferably carried out in mode at one, the clamping part of described clamping device includes the first clamping limb being oppositely arranged
With the second clamping limb, an and locking device, described locking device is arranged to be used for locking two folders being oppositely arranged
Gripping arm, thus realize holding function.
Further, described clamping device also includes a gripping arm and a locking nut, described first clamping limb and institute
State the second clamping limb and be connected to described gripping arm, described gripping arm has an external screw thread and external screw thread extends to described the
One clamping limb and the outer peripheral face of described second clamping limb, described locking nut has the external screw thread phase with described gripping arm
The female thread of cooperation.Realize locking two being oppositely arranged by rotating described locking nut to described clamping limb direction
Clamping limb, thus realize holding function.
Further, described first clamping limb and the second clamping limb respectively have towards outside one end of described locking nut
One towards described locking nut boss, be additionally provided with a catch, described gear between clamping limb and described locking nut
Piece is sheathed on described gripping arm, and can slide along a gripping arm, by rotating described locking screw to described clamping limb direction
Mother, described locking nut promotes described catch, and described catch promotes described boss, thus realize locking being oppositely arranged
Two clamping limbs, and then realize holding function.
It is preferably carried out in mode at another, the clamping part of described clamping device includes a gripper hook, described clamping
Hook base portion has a screwed hole, and described clamping part also includes a stop screw, and described stop screw includes thering is outer spiral shell
The nail rod of stricture of vagina and the tip of a taper, described stop screw is passed through external screw thread and is closed with described corresponding threaded holes.By to
Inside screw stop screw, thus realizing holding function.By the cone point of stop screw and the cooperation of gripper hook,
Thus conveniently realizing firm holding function.
Technique effect below with reference to design, concrete structure and generation to the present invention for the accompanying drawing is described further,
To be fully understood from the purpose of the present invention, feature and effect.
Brief description
Fig. 1 is the structural representation of a preferred embodiment of the present invention；
Fig. 2 is the structural representation of another preferred embodiment of the present invention；
Fig. 3 is the use state schematic diagram of a preferred embodiment of the present invention；
Specific embodiment
Embodiment 1
As illustrated, the fulcrum instrument that the present embodiment provides, including first support bar 1 and second support bar 2, institute
One end of one end and described second support bar 2 of stating first support bar 1 is flexibly connected, and described first support bar
The other end of 1 other end and described second support bar 2 connects a clamping device 3 respectively.Described clamping device 3 quilt
It is provided for clamping pedicle nail protective case or other operating theater instruments.
One end of one end of described first support bar 1 and described second support bar 2 can be connected by universal joint.Institute
State first end and the second end that first support bar 1 includes body of rod connection, described second support bar 2 includes the body of rod
The first end connecting and the second end, the first end of described first support bar 1 and described second support bar 2
First end connected by universal joint, the second end of described first support bar 1 is connected with described clamping device 3,
The second end of described second support bar 2 is connected with another clamping device 3.Described first support bar 1 and described
The connecting portion (e.g., universal joint) of two support bars 2 can include a locking device, and described locking device is set
It is the relative motion for limiting described first support bar 1 and described second support bar 2.
In the present embodiment, the first end of described first support bar 1 includes a globe joint 11, described second
The first end of strut 2 includes the sphere 21 of an indent matching with described globe joint 11, described spherical connects
11 are placed in the sphere 21 of described indent.
Described globe joint 11 has a horizontal through hole 111, and described locking device includes a threaded rod 13, stops
Washer 14 and the nut 15 matching with described threaded rod, one end of described threaded rod 13 passes through described spherical
The through hole of joint 11 is fixedly connected the sphere 21 of (e.g., the welding) indent in described second support bar 2, described
Stop washer 14 is located in the middle of described nut 15 and described globe joint 11, and described stop washer 14 includes and institute
State the cambered surface that globe joint 11 matches.When tightening described nut, described nut 15 is against described stop washer
14, described stop washer 14 is against described globe joint 11, thus limiting described first support bar 1 and described
The relative motion of two support bars 2.
The through hole 111 of described globe joint 11 is horn-like, towards the sphere of the indent of described second support bar 2
21.
The second end of described first support bar 1 includes a linking arm 12, and described linking arm 12 passes through a rotating shaft 16
It is connected to described clamping device 3.
The second end of described second support bar 2 may also comprise a linking arm, and described linking arm passes through a rotating shaft and connects
In described clamping device 3.
One end of described clamping device 3 includes the groove 31 of the described linking arm of a receiving 12, described linking arm 12
Go deep in groove 31, described clamping device 3 is connected to by rotating shaft 16.Described clamping device 3 and described connection
Arm 12 can be by described rotating shaft relative motion.
The top of described linking arm 12 be circular arc, also include in the described groove 31 of described clamping device 3 one with
The scotch 17 matching in the circular arc top of described linking arm 12, described scotch 17 and described groove 31
It is provided with a spring 18, described spring 18 provides elastic force to make described scotch 17 to described scotch 17 between bottom surface
Push up the circular arc top to described linking arm 12.
The contact surface on the circular arc top of described scotch 17 and described linking arm 12 is provided with stinging of cooperating
Close groove.
In the present embodiment, as shown in figure 1, the clamping part of described clamping device 3 includes the first clamping being oppositely arranged
Arm 32 and the second clamping limb 33, and a locking device, described locking device is arranged to be used for locking and is oppositely arranged
Two clamping limbs, thus realizing holding function.
Described clamping device 3 also includes a gripping arm 34 and a locking nut 35, described first clamping limb 32 He
Described second clamping limb 33 is connected to described gripping arm 34, and described gripping arm 34 has external screw thread and external screw thread
Extend to described first clamping limb and the outer peripheral face of described second clamping limb, described locking nut 35 have with described
Prop up the female thread that the external screw thread of gripping arm 34 matches.Realized by rotating described locking nut 35 to clamping limb direction
Lock two clamping limbs being oppositely arranged, thus realizing holding function.Described groove 31 can be arranged on described
One end of gripping arm 34.
In the present embodiment, as shown in figure 1, described first clamping limb 32 and the second clamping limb 33 are towards described locking
The side of nut 35 respectively have one towards described locking nut 35 boss 36, in clamping limb and described locking screw
It is additionally provided with a catch 37, described catch 37 is sheathed on described gripping arm 34, and is only capable of along a gripping arm between female 35
Slidably can not rotate, by rotating described locking nut 35, described locking screw to described clamping limb direction
Female 35 described catch 37 of promotion, described catch 37 promotes described boss 36, thus realize locking being oppositely arranged
Two clamping limbs, and then realize holding function.
Embodiment 2
As shown in Fig. 2 in the present embodiment, the fulcrum instrument basic structure providing is same as Example 1, difference exists
In, the clamping part of described clamping device 3 includes a gripper hook 4, and described gripper hook base portion has a screwed hole 41,
Described clamping part also includes a stop screw 42, and described stop screw 42 includes thering is externally threaded nail rod and a cone
The tip of shape, described stop screw 42 is passed through external screw thread and is closed with described corresponding threaded holes.Spacing by inwardly screwing
Screw 42, thus realize holding function.By the cone point of stop screw and the cooperation of gripper hook, thus side
Just realize holding function, and significantly increase the stability of fulcrum instrument.
As shown in figure 3, in use, described clamping device 3 is fixed on pedicle nail protective case 01 He
On pedicle nail protective case 02 or other operating theater instruments, after adjusting angle, fix first support bar 1 and second
Connection between strut 2, so that first support bar 1 and second support bar 2 are relatively fixed, then fixes two
Strut and the connection of clamping device 3, make to be relatively fixed between support bar and clamping device, it is achieved thereby that to vertebral arch
Root follows closely the support function of protective case or other operating theater instruments.
The preferred embodiment of the present invention described in detail above.It should be appreciated that those of ordinary skill in the art
Just many modifications and variations can be made according to the design of the present invention without creative work.Therefore, all this technology necks
In domain, technical staff passes through logical analyses, reasoning or limited under this invention's idea on the basis of existing technology
Test available technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of fulcrum instrument is it is characterised in that include first support bar and second support bar, described first support bar
One end and one end of described second support bar be flexibly connected, and the described first support bar other end and described second
The other end of support bar connects a clamping device respectively.
2. fulcrum instrument as claimed in claim 1 is it is characterised in that described first support bar includes body of rod connection
First end and the second end, described second support bar includes first end and the second end of body of rod connection, described
The first end of the first end of first support bar and described second support bar is connected by universal joint, described first
The second end of strut be connected with described clamping device and described second support bar the second end and another clamping machine
Structure connects.
3. fulcrum instrument as claimed in claim 2 is it is characterised in that the first end of described first support bar includes
One globe joint, the first end of described second support bar includes the ball of an indent matching with described globe joint
Face, described globe joint is placed in the sphere of described indent.
4. fulcrum instrument as claimed in claim 3 is it is characterised in that described first support bar and described second supports
The connecting portion of bar includes a locking device, described locking device be arranged to be used for limiting described first support bar and
The relative motion of described second support bar.
5. fulcrum instrument as claimed in claim 4 is it is characterised in that described globe joint has a horizontal through hole,
Described locking device includes a threaded rod, stop washer and the nut matching with described threaded rod, described threaded rod
One end pass through the through hole of described globe joint to be fixedly connected (e.g., weld) in the indent of described second support bar
Sphere, described stop washer is located in the middle of described nut and described globe joint, described stop washer include with described
The cambered surface that globe joint matches.
6. fulcrum instrument as claimed in claim 5 it is characterised in that described globe joint through hole be horn-like,
Sphere towards the indent of described second support bar.
7. fulcrum instrument as claimed in claim 6 is it is characterised in that the second end of described first support bar includes
One linking arm, described linking arm is connected to described clamping device by a rotating shaft；And/or
The second end of described second support bar includes a linking arm, and described linking arm is connected to described by a rotating shaft
Clamping device.
8. fulcrum instrument as claimed in claim 7 is it is characterised in that one end of described clamping device includes a receiving
The groove of described linking arm, described linking arm gos deep in groove, is connected to described clamping device by rotating shaft.
9. fulcrum instrument as claimed in claim 8 it is characterised in that described linking arm top be circular arc, institute
State and in the described groove of clamping device, also include a scotch matching with the circular arc top of described linking arm, institute
State and between scotch and the bottom surface of described groove, be provided with a spring, described spring provides elastic force to make institute to described scotch
State the circular arc top to described linking arm for the scotch top.
10. fulcrum instrument as claimed in claim 9 it is characterised in that, the clamping part of described clamping device includes
The first clamping limb being oppositely arranged and the second clamping limb, and a locking device, described locking device is arranged to be used for
Lock two clamping limbs being oppositely arranged, thus realizing holding function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018406.3A CN106361424B (en) | 2015-12-29 | 2015-12-29 | A kind of fulcrum tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018406.3A CN106361424B (en) | 2015-12-29 | 2015-12-29 | A kind of fulcrum tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106361424A true CN106361424A (en) | 2017-02-01 |
| CN106361424B CN106361424B (en) | 2019-08-06 |
Family
ID=57880299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511018406.3A Expired - Fee Related CN106361424B (en) | 2015-12-29 | 2015-12-29 | A kind of fulcrum tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106361424B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544476A (en) * | 2018-06-11 | 2018-09-18 | 昆山宇辰光通自动化科技有限公司 | Commutate clamping manipulator |
| TWI736402B (en) * | 2020-08-25 | 2021-08-11 | 財團法人金屬工業研究發展中心 | Retaining device for surgical navigation marker |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1911181A (en) * | 2001-10-12 | 2007-02-14 | 德普伊阿克罗米德公司 | Polyaxial cross connecting element |
| US20090143823A1 (en) * | 2008-11-13 | 2009-06-04 | Jeon Dong M | Transverse connector system for spinal rods |
| US20090198279A1 (en) * | 2008-02-02 | 2009-08-06 | Texas Scottish Rite Hospital For Children | Spinal Rod Link Reducer |
| US20130006308A1 (en) * | 2007-10-05 | 2013-01-03 | Spineworks Llc | Enhanced pedicle rod clamp device |
| CN203873854U (en) * | 2014-03-30 | 2014-10-15 | 无锡市闻泰百得医疗器械有限公司 | Horizontal connecting device |
| CN205849483U (en) * | 2015-12-29 | 2017-01-04 | 闻泰医疗科技（上海）有限公司 | Fulcrum instrument |
-
2015
- 2015-12-29 CN CN201511018406.3A patent/CN106361424B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1911181A (en) * | 2001-10-12 | 2007-02-14 | 德普伊阿克罗米德公司 | Polyaxial cross connecting element |
| US20130006308A1 (en) * | 2007-10-05 | 2013-01-03 | Spineworks Llc | Enhanced pedicle rod clamp device |
| US20090198279A1 (en) * | 2008-02-02 | 2009-08-06 | Texas Scottish Rite Hospital For Children | Spinal Rod Link Reducer |
| US20090143823A1 (en) * | 2008-11-13 | 2009-06-04 | Jeon Dong M | Transverse connector system for spinal rods |
| CN203873854U (en) * | 2014-03-30 | 2014-10-15 | 无锡市闻泰百得医疗器械有限公司 | Horizontal connecting device |
| CN205849483U (en) * | 2015-12-29 | 2017-01-04 | 闻泰医疗科技（上海）有限公司 | Fulcrum instrument |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544476A (en) * | 2018-06-11 | 2018-09-18 | 昆山宇辰光通自动化科技有限公司 | Commutate clamping manipulator |
| CN108544476B (en) * | 2018-06-11 | 2024-04-12 | 昆山宇辰光通自动化科技有限公司 | Reversing clamping manipulator |
| TWI736402B (en) * | 2020-08-25 | 2021-08-11 | 財團法人金屬工業研究發展中心 | Retaining device for surgical navigation marker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106361424B (en) | 2019-08-06 |
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