CN104970841B - Minimally invasive lumbar surgery retractor - Google Patents
Minimally invasive lumbar surgery retractor Download PDFInfo
- Publication number
- CN104970841B CN104970841B CN201510316048.8A CN201510316048A CN104970841B CN 104970841 B CN104970841 B CN 104970841B CN 201510316048 A CN201510316048 A CN 201510316048A CN 104970841 B CN104970841 B CN 104970841B
- Authority
- CN
- China
- Prior art keywords
- drag hook
- square
- main body
- chute
- minimally invasive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery
-
- 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
- A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery
- A61B2017/0225—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery flexible, e.g. fabrics, meshes, or membranes
-
- 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)
- Surgical Instruments (AREA)
Abstract
The invention relates to a minimally invasive lumbar surgery retractor. The minimally invasive lumbar surgery retractor comprises a right-angle-shaped retractor body, the tail end of the right-angle-shaped retractor body is provided with a handle, the right-angle-shaped retractor body is connected with the handle in virtue of a connecting portion, a sliding groove is formed in the middle of the head portion of the right-angle-shaped retractor body, a sliding buckle is connected into the sliding groove in a sliding mode, two blades are rotationally connected to the two sides of the right-angle-shaped retractor body, the blades can rotate to be in a stretch state or retracts into the right-angle-shaped retractor body, and the sliding buckle is used for locking the blades and controlling the blades to stretch or retract. Compared with the prior art, by means of the minimally invasive lumbar surgery retractor, through the change of the positions of the sliding buckle, stretch and retract of the blades are achieved, in addition, the blades are fixed to a specific position, namely, the blades enter a minimally invasive incision in a retract state, the blades stretch while reaching a deep portion of the tissue, the retractor is set up above two adjacent transverse processes, so that an operating area of a mis-TLIF operation is exposed, the facts that a traditional retractor is shifted and the unnecessary overexposure of the soft tissue is caused can be avoided, and meanwhile the defect that the traditional retractor is prone to being unhooked is overcome.
Description
Technical field
The present invention relates to a kind of surgery tractor, more particularly, to a kind of minimally invasive lumbar surgery drag hook.
Background technology
When minimally invasive spine open surgery is implemented, often need to be by laminectomy retractor by tissue retraction by vertebra, to expose visual area.Vertebra
The use of plate drag hook can reach the purpose of fully exposure visual area.Conventional method is to be fixed on transverse process point, so laminectomy retractor
Need to peel off paraspinal muscle to expose transverse process, the soft tissue such as paravertebral muscleses in a big way need to be peeled off, and laminectomy retractor is easily shifted, need
The position of laminectomy retractor is adjusted repeatedly, so as to increase tissue injury, extends operating time.Also, minimally invasive transforaminal approach waist
The operating area that vertebra intervertebral fusion (MIS-TLIF) is performed the operation is only the articular process position between upper and lower transverse process, without the need for fully appearing
Lower transverse process.Therefore traditional laminectomy retractor not only easily breaks off relations, and need to expose transverse process point, causes over-exposure, operation is caused
Inconvenience.
204306851 U of Chinese patent CN disclose a kind of dichotomous transverse process drag hook, including square hook body body, directly
Angular hook body body one end is crotch, and the square hook body body other end is bifurcated, and the bifurcation of bifurcated is in square coupler body
On middle wire casing, bifurcated is upwarped relative to square hook body body, and middle wire casing is located at the centre of two side of square hook body body.Should
Dichotomous transverse process drag hook is lighter by the exposure of operating field by the support force of transverse process, and bifurcated is stuck on transverse process by means of force, drag hook
Center line is transverse process horizontal central line, and accurate positioning is reduced and made because of drag hook (traditional laminectomy retractor needs to expose extensively, repeatedly transverse process)
Into amount of bleeding.But there is no contraction or launch function in the drag hook operation, using operation inconvenience.
The content of the invention
The purpose of the present invention be exactly in order to overcome defect that above-mentioned prior art is present and provide a kind of structure setting it is simple,
Minimally invasive lumbar surgery drag hook easy to use.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of minimally invasive lumbar surgery drag hook, including a square drag hook main body, the tail end of the square drag hook main body is handss
Handle, square drag hook main body are connected with handle by connecting portion, and the centre of described square drag hook body head offers cunning
Groove, described slide fastener are slidably connected in chute, are rotatably connected to two blades in the both sides of square drag hook main body, described
Blade can be turned to extended configuration or be retracted in square drag hook main body, and during two vane extension states, frame is in adjacent transverse processes
On, described slide fastener is used to lock blade, control vane extension or contraction.
Described handle is Bamboo-shaped ellipsoidal configuration, and the tail end of handle is downward crozier, is easy to be hold by one hand, and
And palm of fitting.
Described square drag hook body head lower end centre position offers a groove, can frame on transverse process, this is recessed
Dentalation is offered on groove, dentalation can increase frictional force.
Described chute is located at the top of groove, and described chute includes longitudinal strip hole of lower end and the circular hole of upper end,
Described strip hole is communicated with circular hole, and described strip hole is the track that slide fastener moves up and down, described circular hole entering for slide fastener
Portal.
Described slide fastener is I-shape construction, and middle is cylinder, and front side is square block, and rear side is circular block, square
There is a projection for being easy to lift in front of block, described circular block diameter is equal to the Circularhole diameter of chute upper end, and described cylinder is straight
Footpath is equal to the strip hole width of chute lower end, and described slide fastener is entered by the circular hole of chute, and makes cylinder in strip hole
Slide up and down.
Two bolts hole are offered positioned at the both sides of chute in described square drag hook main body, described blade passes through spiral shell
The cooperation of bolt and bolt hole and be connected in square drag hook main body.
Described blade is rectangle structure, and lower end offers and accommodates the through hole that passes through of bolt, and upper end is arc-shaped structure,
The side upper end of described blade offers one side groove, and the lateral grooves offer dentalation, and dentalation can increase
Frictional force.
The drag hook of the present invention, can pass through to change the position of slide fastener, realize the contraction of blade and stretch, and blade is fixed on
Ad-hoc location, i.e., enter mini-incision in contraction state, launches blade, by drag hook shelf in adjacent two transverse process after reaching tissue deep
On, the exposure in mis-TLIF operation techniques region is realized, the displacement of traditional drag hook is avoided that and is caused unnecessary soft tissue
Over-exposure, while overcoming the shortcoming that traditional drag hook easily breaks off relations.
Compared with prior art, drag hook of the invention carries two rotating vanes and central slide fastener, is capable of achieving contraction state
Into mini-incision, deployable blade fixation behind deep is reached, is supported on upper and lower transverse process, is reached
The purpose in domain.
Description of the drawings
Fig. 1 is minimally invasive lumbar surgery drag hook overall structure diagram of the invention；
Fig. 2 is square drag hook body head and blade, the attachment structure enlarged diagram of slide fastener；
Mplifying structure schematic diagrams of the Fig. 3 for square drag hook body head；
Mplifying structure schematic diagrams of the Fig. 4 for slide fastener；
Mplifying structure schematic diagrams of the Fig. 5 for blade；
Fig. 6 is bolt arrangement schematic diagram.
In figure, 1 is handle, and 2 is connecting portion, and 3 is square drag hook main body, and 31 is chute, and 32 is groove, and 33 is bolt
Hole, 4 is blade, and 41 is through hole, and 42 is lateral grooves, and 5 is slide fastener, and 51 is square block, and 52 is cylinder, and 53 is circular block, 54
For projection, 6 is bolt.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of minimally invasive lumbar surgery drag hook, as shown in Figure 1 and Figure 2, including a square drag hook main body 3, the square drag hook
The tail end of main body 3 is handle 1, and square drag hook main body 3 is connected with handle 1 by connecting portion 2, it is characterised in that square drawing
The centre of 3 head of hook main body offers chute 31, and slide fastener 5 is slidably connected in chute 31, in the both sides of square drag hook main body 3
Two blades 4 are rotatably connected to, blade 4 can be turned to extended configuration or be retracted in square drag hook main body 3, two blades 4
During extended configuration, in adjacent transverse processes, slide fastener 5 is used to lock blade 4 frame, and control blade 4 stretches or shrinks.
As shown in figure 3,3 head lower end centre position of square drag hook main body offers a groove 32, can frame in transverse process it
On, dentalation is offered on the groove 32, dentalation can increase frictional force.Chute 31 is located at the top of groove 32, chute
31 include longitudinal strip hole of lower end and the circular hole of upper end, and strip hole is communicated with circular hole, and strip hole is the rail that slide fastener 5 moves up and down
Road, manhole appendix of the circular hole for slide fastener 5.Both sides in square drag hook main body 3 positioned at chute 31 offer two bolts hole 33, leaf
Piece 4 is connected in square drag hook main body 3 by the cooperation of bolt 6 and bolt hole 33 as shown in Figure 6.
As shown in figure 4, slide fastener 5 is I-shape construction, middle is cylinder 52, and front side is square block 51, and rear side is circle
Block 53, has a projection 54 for being easy to lift in front of square block 51,53 diameter of circular block is equal to the Circularhole diameter of 31 upper end of chute,
52 diameter of cylinder is equal to the strip hole width of 31 lower end of chute, and slide fastener 5 is entered by the circular hole of chute 31, and makes cylinder 52 exist
Slide up and down in strip hole.
As shown in figure 5, blade 4 is rectangle structure, lower end offers the through hole 41 for accommodating that bolt 6 passes through, and upper end is circle
Arcuate structure, the side upper end of blade 4 offer one side groove 42, and the lateral grooves 42 offer dentalation, dentation knot
Structure can increase frictional force.
A kind of preferred structure of the present embodiment is：
Square drag hook main body is platy structure, and wide 25mm is 100mm by handle to right angle length, and right angle is to directly
Angular drag hook body head length (namely depth) is 150mm；32 width 8mm of groove in square drag hook main body 3, depth 2mm,
The groove 32 can frame on transverse process, dentalation can increase frictional force.Chute 31 is by longitudinal strip hole and the circular hole group of upper end
Into, strip hole width 5mm, long 10mm, Circularhole diameter is 8mm；33 a diameter of 5mm of bolt hole；Blade 4 is width 10mm, long 40mm
Rectangle structure, 41 a diameter of 5mm of through hole, 42 width 8mm of side grooves, depth 2mm, 6 a diameter of 5mm of bolt, a semi smooth, half
It is threaded.
The drag hook of the present embodiment, can pass through to change the position of slide fastener, realize the contraction of blade and stretch, and blade is fixed
In ad-hoc location, i.e., mini-incision is entered in contraction state, launch blade after reaching tissue deep, drag hook shelf is horizontal in adjacent two
On prominent, the exposure in mis-TLIF operation techniques region realized, the displacement of traditional drag hook is avoided that and is caused unnecessary soft group
Over-exposure is knitted, while overcoming the shortcoming that traditional drag hook easily breaks off relations.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and use invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel announcement of the invention, the improvement made without departing from scope and modification all should be the present invention's
Within protection domain.
Claims (4)
1. a kind of minimally invasive lumbar surgery drag hook, including square drag hook main body (3), the tail end of square drag hook main body (3)
For handle (1), square drag hook main body (3) is connected with handle (1) by connecting portion (2), it is characterised in that described square
The centre of drag hook main body (3) head offers chute (31), and slide fastener (5) is slidably connected in chute (31), in square drag hook
The both sides of main body (3) are rotatably connected to two blades (4), and described blade (4) can be turned to extended configuration or be retracted to right angle
In shape drag hook main body (3), during two blade (4) extended configurations, in adjacent transverse processes, described slide fastener (5) is for locking blade for frame
(4), control blade (4) to stretch or shrink；
Described square drag hook main body (3) head lower end centre position offers a groove (32), and the groove is opened up on (32)
There is dentalation；
Described chute (31) positioned at the top of groove (32), described chute (31) longitudinal strip hole and upper end including lower end
Circular hole, described strip hole communicated with circular hole, and described strip hole is the track that slide fastener (5) moves up and down, described circular hole
For the manhole appendix of slide fastener (5)；
Described slide fastener (5) is I-shape construction, and middle is cylinder (52), and front side is square block (51), and rear side is circular block
(53), there is a projection (54) for being easy to lift in front of square block (51), described circular block (53) diameter is equal to chute (31)
The Circularhole diameter of upper end, described cylinder (52) diameter are equal to the strip hole width of chute (31) lower end, described slide fastener (5) by
Enter at the circular hole of chute (31), and cylinder (52) is slided up and down in strip hole.
2. a kind of minimally invasive lumbar surgery drag hook according to claim 1, it is characterised in that described handle (1) is ring
Shape ellipsoidal configuration, the tail end of handle (1) is downward crozier.
3. a kind of minimally invasive lumbar surgery drag hook according to claim 1, it is characterised in that described square drag hook main body
(3) both sides on positioned at chute (31) offer two bolts hole (33), and described blade (4) is by bolt (6) and bolt hole
(33) cooperation and be connected on square drag hook main body (3).
4. a kind of minimally invasive lumbar surgery drag hook according to claim 1, it is characterised in that described blade (4) is rectangular
Shape structure, lower end are offered and accommodate bolt (6) through hole (41) that passes through, and upper end is arc-shaped structure, the side of described blade (4)
Side upper end offers one side groove (42), and the lateral grooves (42) offer dentalation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510316048.8A CN104970841B (en) | 2015-06-10 | 2015-06-10 | Minimally invasive lumbar surgery retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510316048.8A CN104970841B (en) | 2015-06-10 | 2015-06-10 | Minimally invasive lumbar surgery retractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104970841A CN104970841A (en) | 2015-10-14 |
| CN104970841B true CN104970841B (en) | 2017-05-03 |
Family
ID=54268191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510316048.8A Expired - Fee Related CN104970841B (en) | 2015-06-10 | 2015-06-10 | Minimally invasive lumbar surgery retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104970841B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108030521A (en) * | 2017-12-21 | 2018-05-15 | 浙江舒友仪器设备有限公司 | A kind of minimally invasive light source drag hook |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003218189A1 (en) * | 2002-03-18 | 2003-10-08 | American Osteomedix, Inc. | Minimally invasive bone manipulation device and method of use |
| WO2009083276A1 (en) * | 2008-01-03 | 2009-07-09 | Andrea Fontanella | Percutaneous interspinous process spacer |
| CN201290705Y (en) * | 2008-11-28 | 2009-08-19 | 上海市第一人民医院 | Holding type art transverse process draw-hook |
| CN201537102U (en) * | 2009-11-25 | 2010-08-04 | 黄志海 | Forked hollow vertebral plate draw hook |
| CN201658388U (en) * | 2010-03-12 | 2010-12-01 | 韩明建 | Novel lumbar vertebra hemi-lamina drag hook |
| CN204306851U (en) * | 2014-05-09 | 2015-05-06 | 李伟 | A kind of dichotomous transverse process drag hook |
-
2015
- 2015-06-10 CN CN201510316048.8A patent/CN104970841B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN104970841A (en) | 2015-10-14 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170503 Termination date: 20200610 |
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| CF01 | Termination of patent right due to non-payment of annual fee |