CN106859709B - A kind of cervical vertebra drag hook - Google Patents
A kind of cervical vertebra drag hook Download PDFInfo
- Publication number
- CN106859709B CN106859709B CN201611232785.0A CN201611232785A CN106859709B CN 106859709 B CN106859709 B CN 106859709B CN 201611232785 A CN201611232785 A CN 201611232785A CN 106859709 B CN106859709 B CN 106859709B
- Authority
- CN
- China
- Prior art keywords
- flap
- drag hook
- arm
- clamp arm
- lever arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—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
Abstract
The present invention relates to a kind of cervical vertebra drag hooks, including left clamp arm, right clamp arm, lever arm and drag hook, left clamp arm and right clamp arm are by pivot knuckles, and left clamp arm and right clamp arm front end have been respectively articulated with lever arm, and the rotation direction of lever arm and the rotation direction of left clamp arm and right clamp arm are perpendicular；There is opening up notch between first flap and second flap, second flap is located at first flap front end, and drag hook is located at below lever arm, and the notch is located on the outside of lever arm.First flap and second flap 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 operation operating space；Intervertebral disc operation operation can be carried out by the notch on drag hook；The detent projection of baffle bottom inwardly, detent projection is stuck in centrum lateral border when use, increases the stability of drag hook, and detent projection is arranged inwardly, can increase the traction distance of two drag hooks in left and right, further exposes operative space.
Description
Technical field
The present invention relates to the field of medical instrument technology more particularly to a kind of cervical vertebra drag hooks.
Background technique
In orthopaedics cervical operation, for drawing tissue exposure field of operation, it will usually cervical vertebra drag hook is used, in order to carry out hand
Art.201782785 U of patent document CN discloses a kind of adjustable multifunctional spine draw hook, although can carry out to surrounding tissue
Drawing, but the clamp handle above drag hook can block surgical field of view during operation, limit surgical procedure space, increase operation difficulty,
Reduce procedure efficiency.
Summary of the invention
The present invention is intended to provide cervical vertebra drag hook, one end of drag hook is connect with clamp arm front end, the free end forward end of drag hook
Extend, avoid limitation of the clamp arm to operation operating space, while notch upward is set on drag hook, further widens operation view
It is wild.
In order to achieve the above objectives, The technical solution adopted by the invention is as follows:
A kind of cervical vertebra drag hook, including left clamp arm, right clamp arm, lever arm and drag hook, the left clamp arm and right clamp arm are hinged, institute
It states left clamp arm and right clamp arm front end has been respectively articulated with turn of lever arm, the rotation direction of the lever arm and left clamp arm and right clamp arm
Dynamic direction is perpendicular；
The drag hook includes at least first flap and second flap, and the second flap connects first flap, and described first
There is opening up notch between baffle and second flap, the front end of the first flap and lever arm is affixed, the second gear
Piece is located at first flap front end, and the drag hook is located at below lever arm, and the notch is located on the outside of lever arm.
Further, the first flap and second flap bottom at least two pieces of detent projections inwardly.
Further, there is downward opening arc-shaped notch between the first flap and second flap.
Further, the second flap is connect by arched arm with first flap, and the center of circle of arched arm is located under drag hook
Side, arched arm are located at first flap and second flap lower part, form notch between the first flap, second flap and arched arm
And arc-shaped notch.
Further, the lever arm connecting with right clamp arm is than the movable brachium that connect with left clamp arm.
Further, ratchet piece is installed in the right clamp arm, pawl is installed in the left clamp arm, the pawl passes through
Pin shaft hingedly in left clamp arm, is equipped with the spring leaf matched with pawl in the left clamp arm, the spring leaf makes pawl and spine
Gear piece is maintained at the position of engagement.By the degree that struts of ratchet piece and the adjustable arm of pawl, and it is suitable when locked.
Further, the lever arm includes first connecting rod and the second connecting rod, the left clamp arm and right clamp arm front end
Hinged with one end of first connecting rod respectively, the first connecting rod other end and the second connecting rod are hinged, the drag hook installation
In the second connecting rod.
Further, there is a drag hook mounting hole in second connecting rod front end, and the drag hook mounting hole is rectangle；It is described
There is the rectangular column being adapted to drag hook mounting hole at the top of first flap, the rectangular column is mounted in drag hook mounting hole.
It further, further include third baffle, the third baffle is connect by arched arm with second flap, the arc
Arm is located at third baffle lower part, and notch and arc-shaped notch are formed between the second flap, third baffle and arched arm.
Further, the spacing distance of the detent projection is 4mm~5mm.
Left clamp arm, right clamp arm, lever arm use high-strength alloy.
Further, institute's first flap, second flap, arched arm and third baffle are integrally manufactured, described
Further, detent projection and first flap, second flap and third baffle are integrally manufactured.
Compared with prior art, the invention has the following advantages:
1. one end of drag hook is connect with lever arm front end in the present invention, the free end forward end of drag hook extends, and avoids clamp arm
Limitation with lever arm to operation operating space, while notch upward is set on drag hook, further widen surgical field of view；And
And this notch face disc height, intervertebral disc operation operation can be carried out by the notch, be particularly suitable for grasping in opposite side
Make；
2. the detent projection of baffle bottom inwardly, detent projection is stuck in centrum lateral border when use, increases the stabilization of drag hook
Property, and detent projection is arranged inwardly, can increase the traction distance of two drag hooks in left and right, further exposes operative space；This
Outer detent projection is arc hook solid, reduces the damage risk to esophagus and blood vessel beside centrum；
3. arc-shaped notch face interverbebral disc, the width of arc-shaped notch and the height of interverbebral disc are consistent, and interverbebral disc has protrusion, makes
Baffle more docile is also convenient for the operations such as discectomy, intervertenral space decompression；
4. two neighboring baffle connected by arched arm it is integral, it is the visual field is more sufficiently exposed, while mitigating drag hook
Weight；
5. the design of lever arm, keep drag hook opposite with clamp arm can only do it is up and down cannot control activity, when up and down
The height of adjustable front end；
6. right arm is slightly longer than left side wall, anterior cervical operation generally takes right side approach, so right side is lower when operation,
The slightly long design of right arm can not be staggered with left and right drag hook face；
7. existing drag hook is too thick to block operative space, drag hook is sheet in the present invention, and operative space is blocked in reduction.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the top view (drag hook is not shown) of Fig. 1；
Fig. 4 is the perspective view of the first drag hook in the present invention；
Fig. 5 is the main view of Fig. 3；
Fig. 6 is the top view of Fig. 3；
Fig. 7 is the perspective view of second of drag hook in the present invention；
Fig. 8 is the sectional view of second flap in the present invention；
In figure: the left clamp arm of 1-, the right clamp arm of 2-, 3- lever arm, 4- pivot, 5- drag hook, 6- ratchet piece, 7- pawl, 8- spring
Piece, 9- drag hook mounting hole, 31- first connecting rod, the second connecting rod of 32-, 51- first flap, 52- second flap, 53- arc
Arm, 54- detent projection, 55- rectangular column, 56- notch, 57- arc-shaped notch, 58- third baffle, 59- lug.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing, to the present invention into
Row is further described.
As shown in Figure 1, 2, cervical vertebra drag hook disclosed by the invention, including left clamp arm 1, right clamp arm 2, lever arm 3 and drag hook 5,
Left clamp arm 1 and right clamp arm 2 are hinged by pivot 4, and left clamp arm 1 and 2 front end of right clamp arm have been respectively articulated with lever arm 3, lever arm 3
The rotation direction of rotation direction and left clamp arm 1 and right clamp arm 2 is perpendicular.Lever arm 3 includes first connecting rod 31 and the second connection
Bar 32, left clamp arm 1 and 2 front end of right clamp arm are hinged with one end of first connecting rod 31 respectively, 31 other end of first connecting rod and
Two connecting rods 32 are hinged, and drag hook 5 is mounted in the second connecting rod 32.
As shown in figure 3, there is a drag hook mounting hole 9 in 32 front end of the second connecting rod, drag hook mounting hole 9 is rectangle；First gear
There is the rectangular column 59 being adapted to drag hook mounting hole 9 at the top of piece 51, rectangular column 59 is mounted in drag hook mounting hole 9.Preferably, square
Shape column 59 is square.The junction of baffle and lever arm uses the design of rectangle, and the two is avoided to relatively rotate.First flap 51
Top curved forms horizontal lug 59, and rectangular column 59 is vertically arranged on lug 59.Drag hook mounting hole 9 is matched with rectangular column 59
It closes, is conveniently adjusted the drag hook of different height and width, 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 first flap 51 and second flap 52, second
Baffle 52 connects first flap 51, there is opening up notch 56, first flap 51 between first flap 51 and second flap 52
Affixed with the front end of lever arm 3, second flap 52 is located at 51 front end of first flap, and drag hook 5 is located at 3 lower section of lever arm, notch 56
Positioned at 3 outside of lever arm.
Drag hook is stuck on centrum for convenience, first flap 51 and 52 bottom of second flap at least two pieces of dentations inwardly
Protrusion 54.The spacing distance of detent projection 54 is 4mm~5mm.As shown in figure 8, detent projection 54 is arc hook solid, reduction pair
The damage risk of esophagus and blood vessel beside centrum.
Further, there is downward opening arc-shaped notch 57 between first flap 51 and second flap 52.Further,
Two baffles 52 are connect by arched arm 53 with first flap 51, and the center of circle of arched arm 53 is located at 5 lower section of drag hook, and arched arm 53 is located at
52 lower part of first flap 51 and second flap, preferably, the both ends of arched arm 53 respectively with first flap 51 and second flap
52 bottom connection.Notch 56 and arc-shaped notch 57, notch 56 are formed between first flap 51, second flap 52 and arched arm 53
Above arched arm 53, arc-shaped notch 57 is located at 53 lower section of arched arm.
Since anterior cervical operation generally takes right side approach, right side is lower when operation, so further, with right clamp arm
The lever arm 3 of 2 connections is longer than the lever arm 3 connecting with left clamp arm 1, makes left and right drag hook that can not be staggered with face.Further,
Ratchet piece 6 is installed in right clamp arm 2, pawl 7 is installed in left clamp arm 1, pawl 7 is by pin shaft hingedly left clamp arm 1, left clamp arm
The spring leaf 8 matched with pawl 7 is installed, spring leaf 8 makes pawl 7 and ratchet piece 6 be maintained at the position of engagement on 1.Left clamp arm
1, right clamp arm 2, lever arm 3 use high-strength alloy.
As shown in fig. 7, second of drag hook disclosed by the invention, other than including first flap 51 and second flap 52, also
Including third baffle 58, third baffle 58 is connect by arched arm 53 with second flap 52, and arched arm 53 is located at third baffle 58
Notch 56 and arc-shaped notch 57 are formed between second flap 52, third baffle 58 and arched arm 53 at lower part.The of second of structure
Two kinds of drag hooks can be used for 2 segment surgeries.Preferably, first flap 51, second flap 52, arched arm 53 and third baffle 58
It is integrally manufactured.Detent projection 54 and first flap 51, second flap 52 and third baffle 58 are integrally manufactured.
The present invention can widen surgical field of view, increase surgical procedure space, improve the stability of drag hook, doctor is facilitated to operate,
Shorten operating time, reduces operation risk.
Certainly, the present invention can also have other numerous embodiments, without deviating from the spirit and substance of the present invention,
Those skilled in the art can make various corresponding changes and modifications, but these corresponding changes and change according to the present invention
Shape all should fall within the scope of protection of the appended claims of the present invention.
Claims (8)
1. a kind of cervical vertebra drag hook, it is characterised in that: described including left clamp arm (1), right clamp arm (2), lever arm (3) and drag hook (5)
Hingedly, the left clamp arm (1) and right clamp arm (2) front end have been respectively articulated with lever arm (3), described for left clamp arm (1) and right clamp arm (2)
The rotation direction of lever arm (3) and the rotation direction of left clamp arm (1) and right clamp arm (2) are perpendicular；
The drag hook (5) includes at least first flap (51) and second flap (52), and the second flap (52) connects first gear
Piece (51) has opening up notch (56), the first flap between the first flap (51) and second flap (52)
(51) affixed with the front end of lever arm (3), the second flap (52) is located at first flap (51) front end, drag hook (5) position
Below lever arm (3), the notch (56) is located on the outside of lever arm (3)；
There are downward opening arc-shaped notch (57) between the first flap (51) and second flap (52)；The second flap
(52) it is connect by arched arm (53) with first flap (51), the center of circle of arched arm (53) is located at below drag hook (5), arched arm
(53) it is located at first flap (51) and second flap (52) lower part, the first flap (51), second flap (52) and arched arm
(53) notch (56) and arc-shaped notch (57) are formed between.
2. cervical vertebra drag hook according to claim 1, it is characterised in that: the first flap (51) and second flap (52) bottom
The detent projection (54) of at least two pieces of portion inwardly.
3. cervical vertebra drag hook according to claim 1, it is characterised in that: lever arm (3) ratio and the left side being connect with right clamp arm (2)
The lever arm (3) of clamp arm (1) connection is long.
4. cervical vertebra drag hook according to claim 1, it is characterised in that: ratchet piece (6) are installed on the right clamp arm (2),
Pawl is installed, the pawl on the left clamp arm (1) by installing on pin shaft hingedly left clamp arm (1) on the left clamp arm (1)
There is the spring leaf matched with pawl, the spring leaf makes pawl and ratchet piece (6) be maintained at the position of engagement.
5. cervical vertebra drag hook according to claim 1, it is characterised in that: the lever arm (3) includes first connecting rod (31)
With the second connecting rod (32), the left clamp arm (1) and right clamp arm (2) front end are hinged with one end of first connecting rod (31) respectively,
Hingedly, the drag hook (5) is mounted on the second connecting rod (32) for first connecting rod (31) other end and the second connecting rod (32)
On.
6. cervical vertebra drag hook according to claim 5, it is characterised in that: there is a drag hook in the second connecting rod (32) front end
Mounting hole (9), the drag hook mounting hole (9) are rectangle；Have at the top of the first flap (51) and to be adapted to drag hook mounting hole (9)
Rectangular column (59), the rectangular column (59) are mounted in drag hook mounting hole (9).
7. cervical vertebra drag hook according to claim 1, it is characterised in that: further include third baffle, the third baffle passes through
Arched arm (53) is connect with second flap (52), and the arched arm (53) is located at third baffle lower part, the second flap (52),
Notch (56) and arc-shaped notch (57) are formed between third baffle and arched arm (53).
8. 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 CN106859709A (en) | 2017-06-20 |
| CN106859709B true CN106859709B (en) | 2019-04-23 |
Family
ID=59165214
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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106859709B (en) |
Families Citing this family (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 (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1495724A1 (en) * | 2003-07-10 | 2005-01-12 | Showa IKA Kohgyo Co., Ltd. | Surgical retractors |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8142355B2 (en) * | 2006-09-25 | 2012-03-27 | Spinal Elements, Inc. | Surgical tissue retractor |
-
2016
- 2016-12-28 CN CN201611232785.0A patent/CN106859709B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1495724A1 (en) * | 2003-07-10 | 2005-01-12 | Showa IKA Kohgyo Co., Ltd. | Surgical retractors |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN106859709A (en) | 2017-06-20 |
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