CN106859709A - A kind of cervical vertebra drag hook - Google Patents
A kind of cervical vertebra drag hook Download PDFInfo
- Publication number
- CN106859709A CN106859709A CN201611232785.0A CN201611232785A CN106859709A CN 106859709 A CN106859709 A CN 106859709A CN 201611232785 A CN201611232785 A CN 201611232785A CN 106859709 A CN106859709 A CN 106859709A
- Authority
- CN
- China
- Prior art keywords
- catch
- drag hook
- arm
- jig arm
- cervical vertebra
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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
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/025—Joint distractors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0206—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with antagonistic arms as supports for retractor elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/025—Joint distractors
- A61B2017/0256—Joint distractors for the spine
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Prostheses (AREA)
Abstract
The present invention relates to a kind of cervical vertebra drag hook, including left jig arm, right jig arm, lever arm and drag hook,, by pivot knuckles, left jig arm and right jig arm front end have been respectively articulated with lever arm, and the rotation direction of lever arm is perpendicular with the rotation direction of left jig arm and right jig arm for left jig arm and right jig arm；There is opening up breach between first catch and the second catch, the second catch is located at the first catch front end, and drag hook is located at lever arm lower section, and the breach is located at lever arm outside.First catch and the second catch bottom at least two pieces of detent projections inwardly.The free end forward end of drag hook extends in the present invention, reduces the limitation to operating space of performing the operation；Intervertebral disc operation operation can be carried out by the breach on drag hook；Catch bottom detent projection inwardly, detent projection is stuck in centrum lateral border when using, and increases the stability of drag hook, and detent projection is set inwardly, can increase by the two traction distances of drag hook in left and right, further exposes operative space.
Description
Technical field
The present invention relates to technical field of medical instruments, more particularly to a kind of cervical vertebra drag hook.
Background technology
It is drawing tissue exposure field of operation, it will usually cervical vertebra drag hook is used, in order to carry out hand in orthopaedics cervical operation
Art.The U of patent document CN 201782785 disclose a kind of adjustable multifunctional spine draw hook, although surrounding tissue can be carried out
Drawing, but the clamp handle above drag hook can block surgical field of view in operation, and limitation operation technique space increases operation difficulty,
Reduce procedure efficiency.
The content of the invention
The present invention is intended to provide cervical vertebra drag hook, one end of drag hook is connected with jig arm front end, the free end forward end of drag hook
Extend, it is to avoid limitation of the jig arm to operating space of performing the operation, while setting breach upward on drag hook, further widen operation and regard
It is wild.
To reach above-mentioned purpose, the technical solution adopted by the present invention is as follows：
A kind of cervical vertebra drag hook, including left jig arm, right jig arm, lever arm and drag hook, the left jig arm and right jig arm are hinged, institute
State left jig arm and right jig arm front end has been respectively articulated with lever arm, the rotation direction of the lever arm and left jig arm and right jig arm turn
Dynamic direction is perpendicular；
The drag hook at least includes the first catch and the second catch, and second catch connects the first catch, described first
There is opening up breach between catch and the second catch, first catch is affixed with the front end of lever arm, the second gear
Piece is located at the first catch front end, and the drag hook is located at lever arm lower section, and the breach is located at lever arm outside.
Further, first catch and the second catch bottom at least two pieces of detent projections inwardly.
Further, there is downward opening arc-shaped notch between first catch and the second catch.
Further, second catch is connected by arched arm with the first catch, and the center of circle of arched arm is located under drag hook
Side, arched arm is located at the first catch and the second catch bottom, first catch, between the second catch and arched arm forms breach
And arc-shaped notch.
Further, the lever arm being connected with right jig arm is than the movable brachium that is connected with left jig arm.
Further, ratchet piece is installed in the right jig arm, ratchet is installed in the left jig arm, the ratchet passes through
In the left jig arm of hinge, the spring leaf being engaged with ratchet is installed in the left jig arm, the spring leaf makes ratchet and spine
Gear piece is maintained at the position of engagement.The degree that struts of arm can be adjusted by ratchet piece and ratchet, and is locked when suitable.
Further, the lever arm includes head rod and the second connecting rod, the left jig arm and right jig arm front end
The one end with head rod is hinged respectively, and the head rod other end is hinged with the second connecting rod, and the drag hook is installed
In the second connecting rod.
Further, there is a drag hook mounting hole the second connecting rod front end, and the drag hook mounting hole is rectangle；It is described
The rectangular column being adapted to drag hook mounting hole is arranged at the first catch top, and the rectangular column is arranged in drag hook mounting hole.
Further, also including third gear piece, the third gear piece is connected by arched arm with the second catch, the arc
Arm is located at third gear piece bottom, second catch, formation breach and arc-shaped notch between third gear piece and arched arm.
Further, the spacing distance of the detent projection is 4mm~5mm.
Left jig arm, right jig arm, lever arm use high-strength alloy.
Further, the first catch, the second catch, arched arm and third gear piece are integrally manufactured, described
Further, detent projection is integrally manufactured with the first catch, the second catch and third gear piece.
Compared with prior art, the invention has the advantages that：
1. one end of drag hook is connected with lever arm front end in the present invention, and the free end forward end of drag hook extends, it is to avoid jig arm
Limitation with lever arm to operating space of performing the operation, while setting breach upward on drag hook, further widens surgical field of view；And
And this breach is just to disc height, intervertebral disc operation operation can be carried out by the breach, be particularly suited for being grasped in offside
Make；
2. catch bottom detent projection inwardly, detent projection is stuck in centrum lateral border when using, and increases the stabilization of drag hook
Property, and detent projection sets inwardly, can increase by the two traction distances of drag hook in left and right, further exposes operative space；This
Outer detent projection is arc hook solid, reduces the damage risk to centrum side esophagus and blood vessel；
3., just to interverbebral disc, the width of arc-shaped notch is highly consistent with interverbebral disc, and interverbebral disc has projection, makes for arc-shaped notch
Catch more docile, also allows for the operations such as discectomy, intervertenral space decompression；
4. two neighboring catch connects integral by arched arm, exposes more abundant by the visual field, while mitigating drag hook
Weight；
5. the design of lever arm, make drag hook relative with jig arm can only do it is up and down can not left and right activity, when up and down
The height of adjustable front end；
6. right arm is slightly more long than left side wall, and anterior cervical operation typically takes right side approach, so right side is lower during operation,
Right arm design slightly long can be just right with left and right drag hook, does not stagger；
7. existing drag hook is too thick blocks operative space, and drag hook is sheet in the present invention, and reduction is blocked to operative space.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the top view (not shown drag hook) of Fig. 1；
Fig. 4 is the stereogram of the first drag hook in the present invention；
Fig. 5 is the front view of Fig. 3；
Fig. 6 is the top view of Fig. 3；
Fig. 7 is second stereogram of drag hook in the present invention；
Fig. 8 is the sectional view of the second catch in the present invention；
In figure：The left jig arm of 1-, the right jig arm of 2-, 3- lever arms, 4- pivots, 5- drag hooks, 6- ratchets piece, 7- ratchets, 8- springs
Piece, 9- drag hooks mounting hole, 31- head rods, the connecting rods of 32- second, the catch of 51- first, the catch of 52- second, 53- arcs
Arm, 54- detent projections, 55- rectangular columns, 56- breach, 57- arc-shaped notch, 58- third gear piece, 59- lugs.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with accompanying drawing, the present invention is entered
Row is further described.
As shown in Figure 1, 2, cervical vertebra drag hook disclosed by the invention, including left jig arm 1, right jig arm 2, lever arm 3 and drag hook 5,
Left jig arm 1 and right jig arm 2 are hinged by pivot 4, and left jig arm 1 and the front end of right jig arm 2 have been respectively articulated with lever arm 3, lever arm 3
Rotation direction is perpendicular with the rotation direction of left jig arm 1 and right jig arm 2.Lever arm 3 is connected including head rod 31 and second
Bar 32, the one end of left jig arm 1 and the front end of right jig arm 2 respectively with head rod 31 is hinged, the other end of head rod 31 and
Two connecting rods 32 are hinged, and drag hook 5 is arranged in the second connecting rod 32.
As shown in figure 3, there is a drag hook mounting hole 9 front end of the second connecting rod 32, drag hook mounting hole 9 is rectangle；First gear
The rectangular column 59 being adapted to drag hook mounting hole 9 is arranged at the top of piece 51, and rectangular column 59 is arranged in drag hook mounting hole 9.Preferably, square
Shape post 59 is square.The junction of catch and lever arm uses the design of rectangle, it is to avoid both relatively rotate.First catch 51
Top curved forms horizontal lug 59, and rectangular column 59 is vertically arranged on lug 59.Drag hook mounting hole 9 is matched somebody with somebody with rectangular column 59
Close, the drag hook of different height and width is conveniently adjusted, so that the patient of different building shape uses.
As shown in Figure 4,5, 6, the first drag hook disclosed by the invention, including the first catch 51 and the second catch 52, second
Catch 52 connects the first catch 51, there is opening up breach 56, the first catch 51 between the first catch 51 and the second catch 52
Front end with lever arm 3 is affixed, and the second catch 52 is located at the front end of the first catch 51, and drag hook 5 is located at the lower section of lever arm 3, breach 56
Positioned at the outside of lever arm 3.
For convenience of drag hook is stuck on centrum, the first catch 51 and the bottom of the second catch 52 at least two pieces of dentations inwardly
Raised 54.The spacing distance of detent projection 54 is 4mm~5mm.As shown in figure 8, detent projection 54 is arc hook solid, it is right to reduce
The damage risk of centrum side esophagus and blood vessel.
Further, there is downward opening arc-shaped notch 57 between the first catch 51 and the second catch 52.Further,
Two catch 52 are connected by arched arm 53 with the first catch 51, and the center of circle of arched arm 53 is located at the lower section of drag hook 5, and arched arm 53 is located at
First catch 51 and the bottom of the second catch 52, preferably, the two ends of arched arm 53 respectively with the first catch 51 and the second catch
52 bottom connection.Breach 56 and arc-shaped notch 57, breach 56 are formed between first catch 51, the second catch 52 and arched arm 53
Positioned at the top of arched arm 53, arc-shaped notch 57 is located at the lower section of arched arm 53.
Right side approach is typically taken due to anterior cervical operation, right side is lower during operation, so further, with right jig arm
The lever arm 3 of 2 connections is more long than the lever arm 3 being connected with left jig arm 1, allows left and right drag hook just right, does not stagger.Further,
Ratchet piece 6 is installed in right jig arm 2, ratchet 7 is installed in left jig arm 1, ratchet 7 passes through in the left jig arm 1 of hinge, left jig arm
The spring leaf 8 being engaged with ratchet 7 is installed, spring leaf 8 makes ratchet 7 be maintained at the position of engagement with ratchet piece 6 on 1.Left jig arm
1st, right jig arm 2, lever arm 3 use high-strength alloy.
As shown in fig. 7, second drag hook disclosed by the invention, in addition to including the first catch 51 and the second catch 52, also
Including third gear piece 58, third gear piece 58 is connected by arched arm 53 with the second catch 52, and arched arm 53 is located at third gear piece 58
Bottom, the second catch 52, formation breach 56 and arc-shaped notch 57 between third gear piece 58 and arched arm 53.Second the of structure
Two kinds of drag hooks can be used for 2 segment surgeries.Preferably, the first catch 51, the second catch 52, arched arm 53 and third gear piece 58
It is integrally manufactured.Detent projection 54 is integrally manufactured with the first catch 51, the second catch 52 and third gear piece 58.
The present invention can widen surgical field of view, increase operation technique space, improve the stability of drag hook, facilitate doctor to operate,
Shorten operating time, reduce operation risk.
Certainly, the present invention can also have other numerous embodiments, in the case of without departing substantially from spirit of the invention and its essence,
Those of ordinary skill in the art can make various corresponding changes and deformation, but these corresponding changes and change according to the present invention
Shape should all belong to the protection domain of appended claims of the invention.
Claims (10)
1. a kind of cervical vertebra drag hook, it is characterised in that:It is described including left jig arm (1), right jig arm (2), lever arm (3) and drag hook (5)
Left jig arm (1) and right jig arm (2) are hinged, and the left jig arm (1) and right jig arm (2) front end have been respectively articulated with lever arm (3), described
The rotation direction of lever arm (3) is perpendicular with the rotation direction of left jig arm (1) and right jig arm (2)；
The drag hook (5) at least includes the first catch (51) and the second catch (52), and second catch (52) connects first gear
Piece (51), there is opening up breach (56), first catch between first catch (51) and the second catch (52)
(51) front end with lever arm (3) is affixed, and second catch (52) is positioned at the first catch (51) front end, drag hook (5) position
In lever arm (3) lower section, the breach (56) is positioned at lever arm (3) outside.
2. cervical vertebra drag hook according to claim 1, it is characterised in that：First catch (51) and the second catch (52) bottom
At least two pieces of portion detent projection (54) inwardly.
3. cervical vertebra drag hook according to claim 1, it is characterised in that：First catch (51) and the second catch (52) it
Between have downward opening arc-shaped notch (57).
4. cervical vertebra drag hook according to claim 3, it is characterised in that：Second catch (52) by arched arm (53) with
First catch (51) is connected, and the center of circle of arched arm (53) is located at drag hook (5) lower section, arched arm (53) positioned at the first catch (51) and
Second catch (52) bottom, first catch (51), between the second catch (52) and arched arm (53) formed breach (56) and
Arc-shaped notch (57).
5. cervical vertebra drag hook according to claim 1, it is characterised in that：Lever arm (3) ratio and the left side being connected with right jig arm (2)
The lever arm (3) of jig arm (1) connection is long.
6. cervical vertebra drag hook according to claim 1, it is characterised in that：Ratchet piece (6) is installed on the right jig arm (2),
Ratchet is installed, the ratchet on the left jig arm (1) by the left jig arm of hinge (1), installing on the left jig arm (1)
There is the spring leaf being engaged with ratchet, the spring leaf makes ratchet be maintained at the position of engagement with ratchet piece (6).
7. cervical vertebra drag hook according to claim 1, it is characterised in that：The lever arm (3) includes head rod (31)
With the second connecting rod (32), the one end of the left jig arm (1) and right jig arm (2) front end respectively with head rod (31) is hinged,
Head rod (31) other end is hinged with the second connecting rod (32), and the drag hook (5) is installed in the second connecting rod (32)
On.
8. cervical vertebra drag hook according to claim 7, it is characterised in that：There is a drag hook second connecting rod (32) front end
Mounting hole (9), the drag hook mounting hole (9) is rectangle；First catch (51) top has what is be adapted to drag hook mounting hole (9)
Rectangular column (59), the rectangular column (59) is in drag hook mounting hole (9).
9. cervical vertebra drag hook according to claim 4, it is characterised in that：Also include third gear piece, the third gear piece passes through
Arched arm (53) is connected with the second catch (52), the arched arm (53) positioned at third gear piece bottom, second catch (52),
Breach (56) and arc-shaped notch (57) are formed between third gear piece and arched arm (53).
10. cervical vertebra drag hook according to claim 2, it is characterised in that：The spacing distance of the detent projection (54) is 4mm
~5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232785.0A CN106859709B (en) | 2016-12-28 | 2016-12-28 | A kind of cervical vertebra drag hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232785.0A CN106859709B (en) | 2016-12-28 | 2016-12-28 | A kind of cervical vertebra drag hook |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106859709A true CN106859709A (en) | 2017-06-20 |
| CN106859709B CN106859709B (en) | 2019-04-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611232785.0A Active CN106859709B (en) | 2016-12-28 | 2016-12-28 | A kind of cervical vertebra drag hook |
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| Country | Link |
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| CN (1) | CN106859709B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108784820A (en) * | 2018-06-12 | 2018-11-13 | 南通市第人民医院 | A kind of spinal surgery angular guidance system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1495724A1 (en) * | 2003-07-10 | 2005-01-12 | Showa IKA Kohgyo Co., Ltd. | Surgical retractors |
| US20080077171A1 (en) * | 2006-09-25 | 2008-03-27 | Spinal Elements, Inc. | Retractor |
| CN201782785U (en) * | 2010-02-09 | 2011-04-06 | 王玉山 | Adjustable multifunctional spine draw hook |
| CN203315015U (en) * | 2013-06-07 | 2013-12-04 | 河源职业技术学院 | Multifunctional universal type retractor |
| CN203749466U (en) * | 2014-02-20 | 2014-08-06 | 西安交通大学 | Spine vertebral plate retractor |
| CN204336977U (en) * | 2014-12-13 | 2015-05-20 | 刘剑波 | Lead screw linkage formula neurosurgery retractor |
| CN204890061U (en) * | 2015-07-21 | 2015-12-23 | 欧阳电 | Multi -functional operation retractor |
-
2016
- 2016-12-28 CN CN201611232785.0A patent/CN106859709B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1495724A1 (en) * | 2003-07-10 | 2005-01-12 | Showa IKA Kohgyo Co., Ltd. | Surgical retractors |
| US20080077171A1 (en) * | 2006-09-25 | 2008-03-27 | Spinal Elements, Inc. | Retractor |
| CN201782785U (en) * | 2010-02-09 | 2011-04-06 | 王玉山 | Adjustable multifunctional spine draw hook |
| CN203315015U (en) * | 2013-06-07 | 2013-12-04 | 河源职业技术学院 | Multifunctional universal type retractor |
| CN203749466U (en) * | 2014-02-20 | 2014-08-06 | 西安交通大学 | Spine vertebral plate retractor |
| CN204336977U (en) * | 2014-12-13 | 2015-05-20 | 刘剑波 | Lead screw linkage formula neurosurgery retractor |
| CN204890061U (en) * | 2015-07-21 | 2015-12-23 | 欧阳电 | Multi -functional operation retractor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108784820A (en) * | 2018-06-12 | 2018-11-13 | 南通市第人民医院 | A kind of spinal surgery angular guidance system |
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| Publication number | Publication date |
|---|---|
| CN106859709B (en) | 2019-04-23 |
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