CN107714115A - Leafy adjustable brain section drag hook - Google Patents
Leafy adjustable brain section drag hook Download PDFInfo
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- CN107714115A CN107714115A CN201711202804.XA CN201711202804A CN107714115A CN 107714115 A CN107714115 A CN 107714115A CN 201711202804 A CN201711202804 A CN 201711202804A CN 107714115 A CN107714115 A CN 107714115A
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- Prior art keywords
- drag hook
- pedestal
- linking arm
- piece
- depth
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- 210000004556 brain Anatomy 0.000 title claims abstract description 23
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 158
- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 238000009434 installation Methods 0.000 claims abstract description 47
- 210000005013 brain tissue Anatomy 0.000 claims abstract description 27
- 210000003625 skull Anatomy 0.000 claims abstract description 21
- 230000008719 thickening Effects 0.000 claims description 21
- 230000033001 locomotion Effects 0.000 claims description 19
- 239000012528 membrane Substances 0.000 claims description 17
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 230000006978 adaptation Effects 0.000 claims description 8
- 108010048734 sclerotin Proteins 0.000 claims description 7
- 230000000007 visual effect Effects 0.000 abstract description 5
- 230000033228 biological regulation Effects 0.000 description 21
- 230000000694 effects Effects 0.000 description 10
- 206010053942 Cerebral haematoma Diseases 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 6
- 210000003710 cerebral cortex Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000003902 lesion Effects 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 4
- 206010018852 Haematoma Diseases 0.000 description 3
- 230000002490 cerebral effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 210000001519 tissue Anatomy 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 241001631457 Cannula Species 0.000 description 1
- 238000012550 audit Methods 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000023597 hemostasis Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000926 neurological effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000451 tissue damage Effects 0.000 description 1
- 231100000827 tissue damage Toxicity 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
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0293—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with ring member to support retractor elements
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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)
- Prostheses (AREA)
Abstract
The present invention relates to a kind of leafy adjustable brain section drag hook, it includes drag hook pedestal and the pedestal fixed body for drag hook pedestal to be fixed on to skull perforate inside edge, the at least three drag hook pieces for being used to pull brain tissue operative site are set on the drag hook pedestal, the drag hook piece is evenly distributed and can enclosed when close to each other between drag hook piece the drag hook sleeve to form tubular, the lower end of drag hook piece is stretched into drag hook pedestal, the top of drag hook piece is installed on drag hook pedestal by drag hook installation and adjustment mechanism, the orientation and depth that drag hook piece pulls to brain tissue operative site can be adjusted by drag hook installation and adjustment mechanism.The present invention noninvasive can be fixed in patient's skull, and arbitrarily adjustment adjustable retractor piece can be needed according to operation, depth, angle of the drawing of adjustable retractor piece etc. is met operation demand, pulls brain tissue, fully the exposure operative site visual field with appropriate external force, securely and reliably.
Description
Technical field
The present invention relates to a kind of medical drag hook, especially a kind of leafy adjustable brain section drag hook, belong to the technology of medicine equipment
Field.
Background technology
In operations on cranium and brain, organized to fully expose surgical field of view, it is necessary to be strutted with dilator by focus, be easy to perform the operation
Doctor performs the operation to lesions position.But human body brain tissue is particularly significant, crossing poly-injury can cause excessive Cerebral cortex to damage, and cause
Neurological is damaged, and may cause irreversible nervous organ's functional lesion.
In order to reduce Cerebral cortex infringement, surgical approach is particularly significant, it is necessary to avoid important functional Cerebral cortex region,
Simultaneously, it is necessary to avoid the positions such as big blood vessel.This requires operative doctor to choose surgical pathway before hard skull is opened,
Open after skull, it is necessary on the premise of abundant exposed focus causes focus to meet operation demand, reduce as far as possible to by focus just
The drawing of normal brain tissue, avoid the infringement caused by normal cerebral tissue by focus.
In order to reduce the unstability that operative doctor assistant pulls exposure brain tissue, the drawing exposure that brain section uses at present is drawn
Hook is mostly the two blade drag hooks that can adjust fixation, but two blade drag hooks can only realize the drawing of two correspondence directions, when exposure is slightly larger,
The brain tissue of adjacent orientation will bulging, surgical field of view is interfered.Clinic needs more high-quality brain section drag hook, with can be from more
Multi-faceted exposed surgical lesion, brain tissue bulging is reduced or avoided to surgical field of view, increase operation convenience, improves operation safety
Property.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, there is provided a kind of leafy adjustable brain section drag hook, it can
It is noninvasive to be fixed in patient's skull, arbitrarily adjustment adjustable retractor piece can be needed according to operation, makes the depth of the drawing of adjustable retractor piece
Degree, angle etc. meet operation demand, pull brain tissue, fully the exposure operative site visual field with appropriate external force, securely and reliably.
According to technical scheme provided by the invention, the leafy adjustable brain section drag hook, including drag hook pedestal and for will
Drag hook pedestal is fixed on the pedestal fixed body of skull perforate inside edge, set on the drag hook pedestal at least three be used for pair
The drag hook piece that brain tissue operative site is pulled, the drag hook piece are evenly distributed and can enclosed when close to each other between drag hook piece
The drag hook sleeve of tubular is formed, the lower end of drag hook piece is stretched into drag hook pedestal, and the top of drag hook piece passes through drag hook installation and adjustment machine
Structure is installed on drag hook pedestal, and the orientation that drag hook piece pulls to brain tissue operative site can be adjusted by drag hook installation and adjustment mechanism
And depth.
The pedestal fixed body includes the fixes sleeve being fixedly connected with drag hook pedestal lateral wall and is arranged at described solid
Determine the pedestal fixed arm in sleeve, the pedestal fixed arm can stretch in fixes sleeve, and pedestal fixed arm stretches into drag hook pedestal
Interior end set fixes coupler body, the other end of pedestal fixed arm from fixes sleeve pass after outside drag hook pedestal；
Also include coupler body drawing locking mechanism, fixed coupler body hook is pulled by coupler body and locked behind the sclerotin section of skull
Determining mechanism can be so that fixes the hook connection status that coupler body keeps current.
The drag hook installation and adjustment mechanism includes the installation and adjustment seat being adapted to drag hook pedestal, on the installation and adjustment seat
It is provided for adjusting the depth adjusting mechanism of drag hook piece drawing depth and the orientation regulation for adjusting drag hook piece drawing orientation
Mechanism；
Installation and adjustment seat can move on drag hook pedestal, and depth adjusting mechanism, position adjusting mechanism can follow installation and adjustment
Seat is moved on drag hook pedestal, and installation and adjustment seat can be locked on drag hook pedestal after drag hook pedestal moves into place.
The depth adjusting mechanism includes the depth adjustment bar being distributed in vertically on installation and adjustment seat and is arranged at described
Depth adjustment block on depth adjustment bar, the depth adjustment block can be on depth adjustment bars along the length direction of depth adjustment bar
Motion；Depth adjustment block by depth adjustment block locking mechanism can be locked in depth adjustment bar after being moved on depth adjustment bar
On；
Position adjusting mechanism is installed on depth adjustment bar by depth adjustment block, top and the orientation regulation machine of drag hook piece
Structure connects.
The depth adjustment bar is symmetric on installation and adjustment seat, is provided on the top of depth adjustment bar to depth
Spend the depth adjustment limited block of regulating block sports limiting on depth adjustment bar；Depth adjustment block moves to spacing with depth adjustment
When block contacts, the bottom of drag hook piece is concordant with the lower surface of drag hook pedestal.
The position adjusting mechanism includes being used for the drag hook piece linking arm being connected with drag hook piece outer wall, the drag hook piece connection
One end of arm is connected through depth adjustment block with drag hook piece, and drag hook piece linking arm moves governor motion by linking arm can be in depth
Stretched in regulating block, and drag hook piece linking arm relative depth regulating block it is flexible after depth can be locked in by linking arm locking mechanism
On regulating block.
Linking arm bullet circle is nested with the drag hook piece linking arm, one end of the linking arm bullet circle is against the outer wall of drag hook piece
On, the other end contacts with depth adjustment block, by linking arm turn can drag hook piece be kept away from the fortune of depth adjustment bar
Dynamic state.
The linking arm movement governor motion includes the linking arm tooth being distributed along drag hook piece linking arm length direction and set
The mobile adjustment gear mechanism being adapted to linking arm tooth is placed in depth adjustment block.
The linking arm locking mechanism includes the linking arm clamping screw being arranged on depth adjustment block, the linking arm lock
Tight bolt can mutually lock drag hook piece linking arm and depth adjustment block.
The drag hook piece is in arc-shaped, and thickening stem, neighboring tunable drag hook piece are set at the vertical edge in the drag hook piece both sides
Elastic membrane is provided between the thickening stem closed on；Elastic membrane both sides of the edge set the crack sleeve being adapted to thickening stem external diameter, crack
Sleeve lateral border is provided with and the crack of adjustable retractor piece thickness adaptation；
Crack sleeve is nested with and is temporarily fixed at outside thickening stem, is pulled laterally with adjustable retractor piece, and elastic membrane can be same
Step open, not by external force when, elastic membrane width with formation drag hook sleeve when adjacent adjustable retractor piece lateral margin apart from isometric.
Advantages of the present invention：Drag hook pedestal is placed in by desired position by pedestal fixed body, when the position of drag hook pedestal
After positioning, drag hook piece can be placed in desired position, required tune can be carried out to drag hook piece by drag hook installation and adjustment mechanism
Section, so that the height of the drawing of drag hook piece, angle etc. meet operation demand, i.e., appropriate external force drawing brain tissue, fully
The exposure operative site visual field, securely and reliably.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the top view of drag hook pedestal of the present invention.
Fig. 3 is the structural representation of pedestal fixed arm of the present invention.
Fig. 4 is the structural representation of installation and adjustment seat of the present invention.
Fig. 5 is the structural representation of depth adjustment block of the present invention.
Fig. 6 is the schematic diagram of the mobile adjustment gear mechanism of the present invention.
Fig. 7 is the connection diagram of drag hook piece linking arm of the present invention and drag hook piece.
Fig. 8 is Fig. 7 top views of the present invention.
Fig. 9 is the schematic diagram that the mobile adjustment gear mechanism of the present invention coordinates with drag hook piece linking arm.
Figure 10 is that drag hook piece of the present invention encloses the schematic diagram to form drag hook sleeve.
Figure 11 is puncture cannula structural representation of the present invention.
Figure 12 is the structural representation that drag hook piece of the present invention coordinates with elastic membrane.
Description of reference numerals：1- drag hooks pedestal, 11- fixes sleeves, 12- pedestals fixing hole, 13- fixed arms fixed screw,
2- pedestals fixed body, 21- pedestals fixed arm, 22- fix coupler body, 23- fixed arms limit body, 24- fixed arm bullets circle, 3- drag hooks
Piece, 31- drag hooks sleeve, 32- thickenings stem, 33- elastic membranes, 34- cracks sleeve, 5- installation and adjustment seat, 51- adjustment seats mounting groove,
52- adjustment seats locking hole, 53- adjustment seats lock screw, 54- depth adjustments block, 55- regulating block mounting slips hole, 6- depth are adjusted
Pole, 61- depth fixed via, 62- depth fixed screw, 63- linking arm placement positionings pipe, 64- depth adjustments limited block, 7-
Drag hook piece linking arm, 71- linking arms locking hole, 72- linking arms clamping screw, 73- move regulation shell, 74- moves adjustment gear,
75- column spinners, 76- rotary columns through hole, 77- linking arms tooth, 78- linking arm bullets circle, 79- linking arms limited block, 8- puncture cannulas with
And 81- punctures core.
Embodiment
With reference to specific drawings and examples, the invention will be further described.
As shown in Figure 1：In order to noninvasive be fixed in patient's skull, arbitrarily adjustment adjustable retractor can be needed according to operation
Piece, make the height, angle and stretching mouth size of the drawing of adjustable retractor piece suitable, brain tissue is pulled with appropriate external force, it is fully sudden and violent
Reveal the operative site visual field, the present invention includes drag hook pedestal 1 and for drag hook pedestal 1 to be fixed on into skull perforate inside edge
Pedestal fixed body 2, at least three drag hook pieces for being used to pull brain tissue operative site are set on the drag hook pedestal 1
3, the drag hook piece 3 is evenly distributed and can enclosed when close to each other between drag hook piece 3 the drag hook sleeve 31 to form tubular, drag hook piece
3 lower end is stretched into drag hook pedestal 1, and the top of drag hook piece 3 is installed on drag hook pedestal 1 by drag hook installation and adjustment mechanism, is led to
Orientation and depth that drag hook piece 3 pulls to brain tissue operative site can be adjusted by crossing drag hook installation and adjustment mechanism.
Specifically, drag hook pedestal 1 is in hollow ring structure, drag hook pedestal 1 can be fixed on into trouble by pedestal fixed body 2
The inside edge of person's skull perforate, so drag hook pedestal 1 be fixed on skull operation windowing position surface.Pass through drag hook piece
3 can carry out appropriate drawing and be fixed to brain tissue operative site.Drag hook pedestal 1 is the load of pedestal fixed body 2 and drag hook piece 3
Body, drag hook piece 3 is positioned in the top that skull opens a window by drag hook pedestal 1.The length of drag hook piece 3 is more than drag hook pedestal 1
Highly, the lower end of drag hook piece 3 is stretched into drag hook pedestal 1, and the upper end of drag hook piece 3 is connected with drag hook installation and adjustment mechanism, usually,
The lower end of drag hook piece 3 is located at the lower section of drag hook pedestal 1, i.e., the lower end of drag hook piece 3 from drag hook pedestal 1 pass after can be to brain tissue hand
Art position is pulled.The drag hook piece 3 of connection is adjusted by drag hook installation and adjustment mechanism, so that the orientation of drawing can be adjusted
With depth, make drag hook piece 3 to brain tissue be exposed to safety on the premise of meet clinical different demands, make operative doctor in the later stage
Surgical procedure can obtain good surgical field of view, and then good surgical condition is created for operation, and facility is provided for operation.
When it is implemented, drag hook sleeve 31 can be formed after all drag hook pieces 3 are mutually adjacent, in the drag hook sleeve 31 of formation
The interior brain hemotoncus puncture cannula 8 for being arranged adaptation, the puncture core 81 of matching is arranged in puncture cannula 8, such as Figure 10 and Figure 11
It is shown.In same operation, the depth that all drag hook pieces 3 need to stretch into intracerebral hematoma position is consistent, the length phase of drag hook piece 3
Deng being advantageous to operative doctor judges the depth that each tune drag hook piece 3 is inserted in haematoma cavity, and advantageously reducing drag hook piece 3 may production
Raw mechanical damage.The cross section of drag hook piece 3 is mutual with the circular arc in footpath, the vertical edge in all both sides of adjustable retractor piece 3 with one heart
Close on, while be sequentially connected some dry cross section of adjustable retractor piece 3 head and the tail, and make some head ends of adjustable retractor piece 3 and tail end
Concordantly, then some adjustable retractor pieces 3 can form the drag hook sleeve 31 of middle apertured cylinder-like structure.
Operation consent, operative doctor can determine that the particular location of patient's intracerebral hematoma by reading patient image's audit report,
The depth, size and scope of patient's intracerebral hematoma can accurately be judged.In operation, after sphenotresia windowing, brain hemotoncus is used
The puncture core 81 that matching is nested with puncture cannula 8 positions to hematoma puncture, is accurately punctured successfully if puncturing, extracts and puncture core 81
Afterwards, the blood in hemotoncus can flow out through puncture cannula 8.If extracting after puncturing core 81, no blood flows out through puncture cannula 8, then needs
Load and puncture the fine setting paracentesis depth of core 81 or angle.The meaning for puncturing core 81 and being positioned to hematoma puncture is nested with using puncture cannula 8
Justice is the further minimally invasive position for determining intracerebral hematoma, and reducing the directly exposed hemotoncus of puncture deviation causes the surface of a wound larger.It is actual
On, all image checks of intracerebral hematoma are all preoperative completions, check and operation has that the regular hour is poor, and hemotoncus has increase can
Can, during operation intracerebral hematoma size and it is preoperative have a small amount of deviations, this causes puncture cannula 8 is nested with to puncture core 81 and worn to hemotoncus
The meaning of thorn positioning further increases, and is avoided that the unwanted surface of a wound expands, is advantageous at utmost protect patient's Cerebral cortex work(
Energy.
When the position of puncture cannula 8 determines, puncture cannula 8 can be nested with drag hook sleeve 31, and be further adjusted to most
Appropriate depth.When the position adjustment of drag hook sleeve 31 finishes, each adjustable retractor piece 3 for forming drag hook sleeve 31 is consolidated
It is fixed, you can to extract puncture cannula 8.Then need to be sequentially adjusted according to the state of an illness and fixed each drag hook piece 3 pulls exposure puncturing hole
Entrance size, reach optimal exposure effect, good condition is created for follow-up removing hemotoncus, hemostasis.
As shown in Figures 2 and 3, the pedestal fixed body 2 includes the fixes sleeve being fixedly connected with the lateral wall of drag hook pedestal 1
11 and the pedestal fixed arm 21 that is arranged in the fixes sleeve 11, the pedestal fixed arm 21 can be stretched in fixes sleeve 11
Contracting, pedestal fixed arm 21 stretch into end set in drag hook pedestal 1 and fix coupler body 22, and the other end of pedestal fixed arm 21 is from fixation
Sleeve 11 is located at outside drag hook pedestal 1 after passing；
Also include coupler body drawing locking mechanism, fixed coupler body 22 is linked up with behind the sclerotin section of skull, pulled by coupler body
Locking mechanism can to fix the hook connection status that coupler body 22 keeps current.
In the embodiment of the present invention, fixes sleeve 11 is located at outside drag hook pedestal 1 and fixed with drag hook pedestal 1, fixes sleeve 11
With the intracavity inter-connection of drag hook pedestal 1, the axis of fixes sleeve 11 preferably exists through the center with drag hook pedestal 1, fixes sleeve 11
It is uniformly distributed on the lateral wall of drag hook pedestal 1.The cross sectional shape of pedestal fixed arm 21 and the cavity of fixes sleeve 11 should be similar, to ensure
Pedestal fixed arm 21 smoothly slides in the cavity of fixes sleeve 11, and the external diameter of pedestal fixed arm 21 is slightly smaller than in fixes sleeve 11
Footpath, pedestal fixed arm 21 and the inwall gap of fixes sleeve 11 are optimal in 0.5-1mm.To avoid pedestal fixed arm 21 in fixes sleeve
11 cavity internal rotations influence to use, and its section is preferably non-circular, including other non-centrosymmetry section such as rectangle, ellipse, triangle
Face.
The one end that pedestal fixed arm 21 is stretched into drag hook pedestal 1 sets fixed coupler body 22, the fixed coupler body end of coupler body 22
It is preferably arranged to multiple conoid protuberances, can links up with the sclerotin section of skull windowing during use, so as to which drag hook pedestal 1 is fixed on
The surface of skull windowing, preferable rigid condition is created for drag hook piece 3.
Pedestal fixed arm 21 is hooked on the sclerotin section of skull windowing by the fixation coupler body 22 of one end, if drag hook pedestal 1
Only fixed by two pedestal fixed arms 21, the possibility rotated along axis centered on two stress points be present in drag hook pedestal 1, in order to
Increase the fixed effect to drag hook pedestal 1, pedestal fixed arm 21 should at least set three or more than three.It is preferably arranged to three
It is individual, operate fairly simple, fixed effect can meet operation demand, and three pedestal fixed arms 21 are preferably along drag hook pedestal 1
It is uniformly distributed, optimal fixed effect can be played.Because pedestal fixed arm 21 and fixes sleeve 11 is correspond, therefore, drawing
Symmetrically divide on drag hook pedestal 1 at least provided with the fixes sleeve 11 of three or more than three, fixes sleeve 11 on hook pedestal 1
Cloth, a pedestal fixed arm 21 is set in each fixes sleeve 11.
In the embodiment of the present invention, coupler body drawing locking mechanism includes fixed arm limit body 23, is sheathed on pedestal fixed arm 21
On fixed arm bullet circle 24 and the fixed arm fixed screw 13 that is arranged in fixes sleeve 11, fixed arm limit body 23 with it is fixed
Coupler body 22 is located at the both ends of pedestal fixed arm 2 respectively, and the external diameter of fixed arm limit body 23 is more than the internal diameter of fixes sleeve 11, in profit
When being pulled with pedestal fixed arm 21, by the cooperation of fixed arm limit body 23 and fixes sleeve 11, pedestal fixed arm 2 is avoided
With the separation between fixes sleeve 11.
Fixed arm bullet circle 24 is enclosed on pedestal fixed arm 21, and one end and the end of fixes sleeve 11 of fixed arm bullet circle 24 connect
Touch, adjacent to fixed arm limit body 23, it is spacing that the internal diameter of fixed arm bullet circle 24 should be less than fixed arm for the other end of fixed arm bullet circle 24
The external diameter of body 23, ensure that fixed arm bullet circle 24 will not be deviate from from the outside of fixed arm limit body 23.When fixed arm bullet circle 24 is in pedestal
Compressive state is on fixed arm 21, under the restoring force effect of fixed arm bullet circle 24, makes to fix coupler body 22 in the presence of away from drag hook
The movement tendency motion of the central area of pedestal 1.Not under by External force interference state, fixed arm bullet circle 24 is it is desirable that fixed coupler body
22 abut against the madial wall of drag hook pedestal 1.In use, promoting pedestal fixed arm 21 to the center of drag hook pedestal 1, fixed arm is unclamped
Some fixed coupler bodies 22 is hooked on the sclerotin section of skull windowing after 21, the center of drag hook pedestal 1 is located at lesion
The center performed the operation is needed, is easy to the drag hook piece 3 positioned at the center of drag hook pedestal 1 to pull surgery location and exposes.Specifically
During implementation, when being hooked on using fixed coupler body 22 on the sclerotin section of skull windowing, fixed arm bullet circle 24 is in compressive state；
When fixed coupler body 22 is in non-hook state, fixed arm bullet circle 24 can also be in compressive state.
After reaching drag hook pedestal 1 to be satisfied with position by adjusting the position of fixation coupler body 22 of pedestal fixed arm 21, pass through
Precession is arranged on the fixed arm fixed screw 13 in pedestal fixed via 12, and the inwall of pedestal fixed via 12 and fixed arm fix spiral shell
13 outer walls of silk are provided with matching screw thread, and fixed arm fixed screw 13 can be made to screw in the pedestal that the outside upper wall of insertion fixes sleeve 11 is set
Fixed via 12.Continue precession fixed arm fixed screw 13, the head end of fixed arm fixed screw 13 can be made to move on so as to hold
In the upper side wall of fixed arm 21 being nested with fixes sleeve 11, so that pedestal fixed arm 21 and fixes sleeve 11 are fixed temporarily,
So that follow-up drag hook piece 3 can steady operation.When need to release pedestal fixed arm 21 and fixes sleeve 11 is fastenedly connected shape
During state, it is only necessary to fixed arm fixed screw 13 is reversely rotated, so as to enable pedestal fixed arm 21 again in fixes sleeve
Stretched in 11.
As shown in figure 4, the drag hook installation and adjustment mechanism includes the installation and adjustment seat 5 being adapted to drag hook pedestal 1, described
It is provided for adjusting the depth adjusting mechanism of the drawing depth of drag hook piece 3 on installation and adjustment seat 5 and is pulled for adjusting drag hook piece 3
The position adjusting mechanism in orientation；
Installation and adjustment seat 5 can move on drag hook pedestal 1, and depth adjusting mechanism, position adjusting mechanism can follow installation to adjust
Section seat 5 is moved on drag hook pedestal 1, and installation and adjustment seat 5 can be locked on drag hook pedestal 1 after drag hook pedestal 1 moves into place.
In the embodiment of the present invention, the downside of installation and adjustment seat 5 is provided with and the adjustment seat mounting groove 51 of the matching of drag hook pedestal 1,
Installation and adjustment seat 5 is nested with the top of drag hook pedestal 1 and can slid along drag hook pedestal 1 by adjustment seat mounting groove 51.The regulation
Seat mounting groove 51 penetrates lateral wall and is provided with adjustment seat locking hole 52, and adjustment seat lock screw 53 is arranged in adjustment seat locking hole 52,
Coordinated by adjustment seat lock screw 53 and adjustment seat locking hole 52, installation and adjustment seat 5 can be locked on drag hook pedestal 1.
Drag hook pedestal 1 is preferably arranged to centrosymmetric cylinder-like structure, and the downside of installation and adjustment seat 5 is arranged to match arc
The arc-shaped recess of degree, to enable installation and adjustment seat 5 to be slid along drag hook pedestal 1 so that installation and adjustment seat 5 can be located at drag hook pedestal
Any required position on 1.After the position of installation and adjustment seat 5 reaches target location, rotation adjustment seat lock screw 53, which enters, to be adjusted
Seat locking hole 52 is saved, lock screw 53 makes installation and adjustment seat 5 and drag hook pedestal 1 fix temporarily by adjusting.When needing to release
Installation and adjustment seat 5 and when being fastenedly connected state of drag hook pedestal 1, reversely rotate fixed screw 53, detailed process is this skill
Known to the personnel of art field.
As shown in Figure 4 and Figure 5, the depth adjusting mechanism includes the depth adjustment being distributed in vertically on installation and adjustment seat 5
Bar 6 and the depth adjustment block 54 being arranged on the depth adjustment bar 6, the depth adjustment block 54 can be in depth adjustment bars 6
On moved along the length direction of depth adjustment bar 6；Depth adjustment block 54 passes through depth adjustment block after being moved on depth adjustment bar 6
Retaining mechanism can be locked on depth adjustment bar 6；
Position adjusting mechanism is installed on depth adjustment bar 6 by depth adjustment block 54, and top and the orientation of drag hook piece 3 are adjusted
Save mechanism connection.
In the embodiment of the present invention, the depth adjustment bar 6 is symmetric on installation and adjustment seat 5, in depth adjustment bar 6
Top be provided for depth adjustment limited block 64 to the sports limiting on depth adjustment bar 6 of depth adjustment block 54；Depth is adjusted
Locking nub 54 moves to when being contacted with depth adjustment limited block 64, and the bottom of drag hook piece 3 is concordant with the lower surface of drag hook pedestal 1.
The regulation of two and the matching of depth adjustment bar 6 are set in order to be adapted to depth adjustment bar 6, in depth adjustment block 54
Block mounting slip hole 55.The regulating block mounting slip hole 55 that depth adjustment block 54 is matched by two and depth adjustment bar 6 is nested with
On double-rod depth adjustment bar 6, it can be slid by regulating block mounting slip hole 55 along double-rod depth adjustment bar about 6, so as to right
Height of the depth adjustment block 54 on depth adjustment bar 6 adjusts, and then the drawing to drag hook piece 3 to brain tissue operative site
Depth is adjusted.
When depth, which adjusts, to be completed, by the screw-in depth fixed via 61 of depth fixed screw 62, depth fixed via 61
Inwall and the outer wall of depth fixed screw 62 are provided with the screw thread of matching, can hold the head end of depth fixed screw 62 and adjust being nested with
The side wall of depth adjustment bar 6 in locking nub mounting slip hole 55, so that depth adjustment block 54 and depth adjustment bar 6 are fixed temporarily.
When needing to unclamp depth adjustment block 54 and depth adjustment bar 6, depth fixed screw 62 is reversely rotated, makes depth fixed screw 62
Head end leaves depth adjustment bar 6.Depth fixed via 61 is arranged on depth adjustment block 54, utilizes depth fixed screw 62
Coordinate with depth fixed via 61 and realize that the process that depth adjustment block 54 is locked or unclamped with depth adjustment bar 6 is this technology
Known to the personnel of field, here is omitted.
The upper end of depth adjustment bar 6 sets depth adjustment limited block 64, and depth can be prevented by depth adjustment limited block 64
Regulating block 54 along depth adjustment bar 6 slide upwards when, from the upper end of depth adjustment bar 6 deviate from, avoid to using when bring inconvenience.It is deep
Degree regulating block 54 the adjustable length on depth adjustment bar 6 it is long it is too short can give use when make troubles, optimum length should
It is isometric with drag hook piece 3, that is to say, that when depth adjustment block 54 holds depth adjustment limited block 64, the lower end of adjustable retractor piece 3
It is concordant with the downside oral area of drag hook pedestal 1；When depth adjustment block 54 is with arriving drag hook 1 upper surface of pedestal, drag hook piece 3 enters substantially
Enter Cerebral surgery drawing deep.
As shown in Figure 7 and Figure 8, the position adjusting mechanism includes being used for the drag hook piece connection being connected with the outer wall of drag hook piece 3
Arm 7, one end of the drag hook piece linking arm 7 are connected through depth adjustment block 54 with drag hook piece 3, and drag hook piece linking arm 7 passes through company
After connecing arm movement governor motion can stretch in depth adjustment block 54, and the relative depth regulating block 54 of drag hook piece linking arm 7 is flexible
It can be locked on depth adjustment block 54 by linking arm locking mechanism.
In the embodiment of the present invention, during Cerebral surgery, drag hook pedestal 1 is erected at skull windowing section, the cross section of drag hook pedestal 1
It is substantially parallel with the intracerebral surface of a wound, and drag hook piece linking arm 7 need to be parallel with the cross section of drag hook pedestal 1.Drag hook piece 3 will stretch into intracerebral wound
In face, this requires the upper end of drag hook piece 3 and the end of drag hook piece linking arm 7 to be connected, and the length direction of drag hook piece 3 and drag hook piece
The length direction of linking arm 7 is vertical, to reach best use effect.In order to realize drawing of the drag hook piece 3 to intracerebral tissue, drag hook
The length of piece 3 is more than the height of drag hook pedestal 1, and adjustable retractor piece 3 can just slided with depth adjustment block 54 to lateral margin on drag hook pedestal 1
During shifting, guarantee section drag hook piece 3 can enter intracerebral tissue, realize the drawing exposure to the intracerebral surface of a wound.
Depth adjustment block 54 can drive drag hook piece linking arm 7 to lift when being moved on depth adjustment bar 6.In order to ensure to draw
The stability of hook tabs linking arm 7, the optimum position of drag hook piece linking arm 7 should be arranged on the middle position of depth adjustment block 54.In order to
Give the reserved location of drag hook piece linking arm 7, the double-rod structure that the depth adjustment bar 6 is provided parallel to, between depth adjustment bar 6 between
Gap is as the activity space of drag hook piece linking arm 7.
In order to realize that drag hook piece linking arm 7 and depth adjustment block 54 coordinate, linking arm is set on depth adjustment block 54
Placement positioning pipe 63, one end and the depth adjustment block 54 of linking arm placement positioning pipe 63 are fixed, linking arm placement positioning pipe 63 with
It is in T fonts between depth adjustment block 54, the length of linking arm placement positioning pipe 63 is more than the width of depth adjustment block 54, and linking arm is put
Put positioning pipe 63 to be located between regulating block mounting slip hole 55, in linking arm placement positioning pipe 63 having allows drag hook piece linking arm 7
The cavity of placement, one end of drag hook piece linking arm 7 can be penetrated in linking arm placement positioning pipe 63, and is worn from depth adjustment block 54
Go out, i.e., the length direction of drag hook piece linking arm 7 is corresponding consistent with the length direction of linking arm placement positioning pipe 63.
When it is implemented, the end that drag hook piece linking arm 7 points to the kernel of section of drag hook pedestal 1 is connected with drag hook piece 3.Connection
The intracavity section of arm placement positioning pipe 63 and the section of drag hook piece linking arm 7 are matching rectangle, and being coordinated by square-section can prevent from drawing
Hook tabs linking arm 7 rotates in linking arm placement positioning pipe 63, avoids drag hook piece linking arm 7 from driving drag hook piece 3 and is displaced to it
His direction.For ensure drag hook piece linking arm 7 can along the inner chamber of linking arm placement positioning pipe 63 slide smoothly and be unlikely to excessively to loosen,
The outer wall of drag hook piece linking arm 7 and the inwall gap of linking arm placement positioning pipe 63 are preferably provided between 0.2-0.5mm.Drag hook piece connects
Connecing arm 7 can stretch along the length direction in linking arm placement positioning pipe 63.
Further, linking arm bullet circle 78 is nested with the drag hook piece linking arm 7, one end of the linking arm bullet circle 78 is supported
On the outer wall of drag hook piece 3, the other end contacts with depth adjustment block 54, is protected by the energy drag hook of linking arm turn 78 piece 3
Hold the motion state away from depth adjustment bar 6.
In the embodiment of the present invention, the linking arm bullet circle 78 is located between drag hook piece 3 and linking arm placement positioning pipe 63.
So, when not applying external force to drag hook piece 3 and drag hook piece linking arm 7, under the restoring force effect of linking arm bullet circle 78, drag hook
Piece linking arm 7 can slide to the center of drag hook pedestal 1 as far as possible in linking arm placement positioning pipe 63, even if adjustable retractor piece
3, positioned at the center of drag hook pedestal 1 is kept as much as possible, avoid unexpected drawing from damaging brain tissue.
When regulation drag hook piece linking arm 7 stretches in linking arm placement positioning pipe 63, drag hook piece 3 can be driven to pull intracerebral group
Knit when being exposed to target location, it is necessary to fixed to the position of drag hook piece 3, avoid reply of the drag hook piece 3 in linking arm bullet circle 78
Cause brain tissue exposure failure to the movement of the center of drag hook pedestal 1 under power effect.
Further, the linking arm locking mechanism includes the linking arm clamping screw being arranged on depth adjustment block 54
72, the linking arm clamping screw 72 can mutually lock drag hook piece linking arm 7 with depth adjustment block 54.
In the embodiment of the present invention, the upper side wall of through connection arm placement positioning pipe 63 is provided with linking arm locking hole 71, linking arm
Linking arm clamping screw 72 is arranged in locking hole 71.When needing to fix the position of drag hook piece 3, screwed in into linking arm locking hole 71
Linking arm clamping screw 72, the inwall of linking arm locking hole 71 and the outer wall of linking arm clamping screw 72 are provided with the screw thread of matching, can make
The head end of linking arm clamping screw 72 holds the surface of drag hook piece linking arm 7 being nested with linking arm placement positioning pipe 63, makes company
Connect arm placement positioning pipe 63 and drag hook piece linking arm 7 is locked, and then the position of drag hook piece 3 is fixed temporarily.Conversely, when needs
When linking arm placement positioning pipe 63 and drag hook piece linking arm 7 unclamp, reverse operating, here is omitted.
Further, the linking arm movement governor motion includes the connection being distributed along the length direction of drag hook piece linking arm 7
Arm tooth 77 and it is arranged at the mobile adjustment gear mechanism being adapted to linking arm tooth 77 in depth adjustment block 54.
As shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9, it is circular that the side of linking arm placement positioning pipe 63, which is provided with horizontal cross-section,
Mobile regulation shell 73, the mobile regulation edge of shell 73 connect with linking arm placement positioning pipe 63.The mobile adjustment gear mechanism bag
The mobile adjustment gear 74 being arranged in mobile regulation shell 73 is included, mobile adjustment gear 74 can engage with linking arm tooth 77.
In the embodiment of the present invention, when drawing regulation is carried out in operation to drag hook piece 3, it is necessary to precisely, ensure that drag hook piece 3 is led
Pull open that mouth is appropriate, avoid drag hook piece 3 from pulling the damage excessively to brain tissue.In order to which fine adjustment drag hook piece 3 pulls the big of opening
It is small, horizontal cross-section is provided with the side of linking arm placement positioning pipe 63 as circular mobile regulation shell 73, mobile regulation shell 73 edge
Connected with linking arm placement positioning pipe 63.It is important that：Mobile regulation shell 73 and the edge of linking arm placement positioning pipe 63 must fit
Spend micro overlapping, that is to say, that appropriate " intrusion " the linking arm placement positioning pipe 63 of circular cross section of the mobile regulation cavity of shell 73
In the rectangular cross section of cavity, the regulation part for enabling to be arranged in mobile regulation shell 73 is to the cavity of linking arm placement positioning pipe 63
Interior drag hook piece linking arm 7, which produces, to interlock.
The mobile upper center of adjustment gear 74 is provided with column spinner 75, is covered with rotary column through hole 76 on mobile regulation shell 73, revolves
The diameter of rotary column 75 is less than the diameter of rotary column through hole 76, and the diameter of rotary column through hole 76 is less than the mobile diameter of adjustment gear 74, and column spinner 75 is high
Degree is more than the height of rotary column through hole 76 at least 1cm.Rotary column through hole 76 is less than by diameter and height is higher than the height of rotary column through hole 76 extremely
Few 1cm column spinner 75, operator can carry out rotation process by rotating column spinner 75 to mobile adjustment gear 74.
The center of mobile adjustment gear 74 is provided with column spinner 75, is covered with rotary column through hole 76 on mobile regulation shell 73, revolves
The diameter of rotary column 75 is less than the diameter of rotary column through hole 76, and the diameter of rotary column through hole 76 is less than the mobile diameter of adjustment gear 74, and column spinner 75 is high
Degree is more than the height of rotary column through hole 76 at least 1cm.It is mobile to adjust after drag hook piece linking arm 7 is placed in linking arm placement positioning pipe 63
Saving gear 74 can be engaged with the linking arm tooth 77 on drag hook piece linking arm 7, and adjustment gear 74 is moved when passing through column spinner 75
During rotation, drag hook piece linking arm 7 can be moved in linking arm placement positioning pipe 63.Drag hook piece linking arm 7 is put in linking arm
It is finger retractor piece linking arm 7 in the interior edge linking arm placement positioning pipe 63 of linking arm placement positioning pipe 63 to put the movement in positioning pipe 63
Length direction motion.
In the embodiment of the present invention, the mobile outer wall of adjustment gear 74 and mobile regulation shell 73 cavity inner wall gap are preferably 0.2-
0.3mm, enables to move that the mobile regulation cavity of shell 73 of adjustment gear 74 can rotate but to translate displacement limited.By rotating column spinner 75
Mobile adjustment gear 74 can be driven to rotate, in the case where the linking arm tooth 77 set mutually acts on, and then before drive drag hook piece linking arm 7
Enter or retreat, so as to carry out accurate regulation to the position of drag hook piece 3., will after the position of adjustable retractor piece 3 reaches optimum target position
Linking arm clamping screw 72 screws in linking arm locking hole 71 and the position of drag hook piece 3 can be fixed temporarily.
As shown in Fig. 7, Fig. 8 and Figure 12, the unified thickening stem 32 of external diameter is set at the vertical edge in the both sides of drag hook piece 3, it is adjacent
Elastic membrane 33 is provided between the thickening stem 32 that adjustable retractor piece 3 closes on.The both sides of the edge of elastic membrane 33 are set and the external diameter of thickening stem 32
The crack sleeve 34 of adaptation, the lateral border of crack sleeve 34 is provided with and the crack of the thickness of drag hook piece 3 adaptation, crack sleeve 34 and elasticity
The length of film 33 is equal with drag hook piece 3.Crack sleeve 34 is nested with and is temporarily fixed at outside thickening stem 32, with drag hook piece 3 laterally
Drawing, elastic membrane 33 can synchronously open.When not by external force, adjacent adjustable retractor when the width of elastic membrane 33 is with forming drag hook sleeve 31
The lateral margin of piece 3 is apart from isometric.
The profile of thickening stem 32 and the inner chamber of crack sleeve 34 adaptation, thickening stem 32 can be nested with the intracavitary of crack sleeve 34.Thickening
The transverse diameter of stem 32 is more than the thickness of drag hook piece 3；Meanwhile the Fracture Width that the lateral border of crack sleeve 34 is set is more than adjustable retractor piece 3
Thickness and be less than the transverse diameter of thickening stem 32, the thickening stem 32 enable is nested with the chamber of crack sleeve 34 through 34 times side entrances of crack sleeve
It is interior, it can not but be come off through side.Elastic membrane 33 is arranged on two adjacent crack sleeves 34 away from the lateral edges of crack one, by drag hook set
Cylinder 31 is nested with before the outside of puncture cannula 8, and the crack set of elastic membrane 33 is set in the middle part of the assembling of each edge of neighboring tunable drag hook piece 3
Cylinder 34, crack sleeve 34 and the length of elastic membrane 33 are equal with adjustable retractor piece 3.Each adjacent drag hook piece 3 can be made during drawing to blood
The drawing effect of swollen interruption is changed into the continuous comprehensive push-and-pull to hemotoncus surrounding free of discontinuities, avoids the brain tissue slave phase of softness
The adjacent gap bulging of drag hook piece 3 is blocked operator's sight, interfered to performing the operation in drag hook sleeve 31.
Inserted to further reduce drag hook sleeve 31 to brain tissue damage, the outer wall of each drag hook piece 3 has no thickening, thickening
Stem 32 is set at the edge of drag hook piece 3 to inner side, and the corresponding profile of crack sleeve 34 is adapted to thickening stem 32.For the ease of observing brain
Interior operative site, each the drag hook piece 3 and crack sleeve 34 of the composition drag hook sleeve 31 select transparent relatively thin smooth hard
Material is made, and elastic membrane 33 is made from the elastomeric material of soft quality.
Judge operational depth for the ease of operative doctor, the lateral wall of drag hook piece 3 should set graduation mark, and side group operator judges
Drag hook sleeve 31 inserts the depth of brain tissue.Certain surface of puncture cannula 8 preferably can also set length scale line, and operator is sentenced
Disconnected paracentesis depth has very great help, convenient during use.
Drag hook pedestal 1 can be placed in desired position by the present invention by pedestal fixed body 2, when the position of drag hook pedestal 1 is determined
Behind position, drag hook piece 3 can be placed in desired position, required tune can be carried out to drag hook piece 3 by drag hook installation and adjustment mechanism
Section, so that the height of the drawing of drag hook piece 3, angle etc. meet operation demand, i.e., appropriate external force drawing brain tissue, fully
The exposure operative site visual field, securely and reliably.
Claims (10)
1. a kind of leafy adjustable brain section drag hook, it is characterized in that：Including drag hook pedestal (1) and for drag hook pedestal (1) is fixed
Pedestal fixed body (2) in skull perforate inside edge, at least three are set to be used for brain tissue on the drag hook pedestal (1)
The drag hook piece (3) that operative site is pulled, the drag hook piece (3) be evenly distributed and it is close to each other between drag hook piece (3) when energy
The drag hook sleeve (31) to form tubular is enclosed, the lower end of drag hook piece (3) is stretched into drag hook pedestal (1), and the top of drag hook piece (3) leads to
Cross drag hook installation and adjustment mechanism to be installed on drag hook pedestal (1), drag hook piece (3) can be adjusted to brain by drag hook installation and adjustment mechanism
Organize the orientation and depth of operative site drawing.
2. leafy adjustable brain section drag hook according to claim 1, it is characterized in that：The pedestal fixed body (2) includes and drawing
Fixes sleeve (11) that hook pedestal (1) lateral wall is fixedly connected and the pedestal fixed arm being arranged in the fixes sleeve (11)
(21), the pedestal fixed arm (21) can be stretched in fixes sleeve (11), and pedestal fixed arm (21) is stretched into drag hook pedestal (1)
End set fix coupler body (22), the other end of pedestal fixed arm (21) is located at drag hook pedestal after being passed from fixes sleeve (11)
(1) outside；
Also include coupler body drawing locking mechanism, fixed coupler body (22) hook is pulled by coupler body and locked behind the sclerotin section of skull
Determining mechanism can be so that fixes the hook connection status that coupler body (22) keeps current.
3. leafy adjustable brain section drag hook according to claim 1, it is characterized in that：The drag hook installation and adjustment mechanism include with
The installation and adjustment seat (5) of drag hook pedestal (1) adaptation, it is provided for adjusting drag hook piece (3) drawing on the installation and adjustment seat (5)
The depth adjusting mechanism of depth and the position adjusting mechanism for adjusting drag hook piece (3) drawing orientation；
Installation and adjustment seat (5) can move on drag hook pedestal (1), and depth adjusting mechanism, position adjusting mechanism can follow installation to adjust
Section seat (5) moves on drag hook pedestal (1), and installation and adjustment seat (5) can be locked at drag hook after drag hook pedestal (1) moves into place
On pedestal (1).
4. leafy adjustable brain section drag hook according to claim 3, it is characterized in that：The depth adjusting mechanism includes vertical point
The depth adjustment bar (6) being distributed on installation and adjustment seat (5) and the depth adjustment block being arranged on the depth adjustment bar (6)
(54), the depth adjustment block (54) can be moved on depth adjustment bar (6) along the length direction of depth adjustment bar (6)；Depth
Regulating block (54) by depth adjustment block locking mechanism can be locked in depth adjustment bar (6) after being moved on depth adjustment bar (6)
On；
Position adjusting mechanism is installed on depth adjustment bar (6) by depth adjustment block (54), the top and orientation of drag hook piece (3)
Governor motion connects.
5. leafy adjustable brain section drag hook according to claim 4, it is characterized in that：The depth adjustment bar (6) is adjusted in installation
It is symmetric on section seat (5), is provided on the top of depth adjustment bar (6) to depth adjustment block (54) in depth adjustment bar
(6) the depth adjustment limited block (64) of sports limiting on；Depth adjustment block (54) moves to be connect with depth adjustment limited block (64)
When touching, the bottom of drag hook piece (3) is concordant with the lower surface of drag hook pedestal (1).
6. leafy adjustable brain section drag hook according to claim 4, it is characterized in that：The position adjusting mechanism include be used for
The drag hook piece linking arm (7) of drag hook piece (3) outer wall connection, one end of the drag hook piece linking arm (7) passes through depth adjustment block
(54) it is connected with drag hook piece (3), drag hook piece linking arm (7) moves governor motion by linking arm can be in depth adjustment block (54)
It is flexible, and drag hook piece linking arm (7) relative depth regulating block (54) it is flexible after depth can be locked in by linking arm locking mechanism
On regulating block (54).
7. leafy adjustable brain section drag hook according to claim 6, it is characterized in that：It is nested with the drag hook piece linking arm (7)
Linking arm bullet circle (78), one end of the linking arm bullet circle (78) are against on the outer wall of drag hook piece (3), the other end and depth adjustment
Block (54) is contacted, and the motion shape of depth adjustment bar (6) is kept away from by linking arm turn (78) energy drag hook piece (3)
State.
8. leafy adjustable brain section drag hook according to claim 6, it is characterized in that：The linking arm movement governor motion includes
Along the distribution of drag hook piece linking arm (7) length direction linking arm tooth (77) and be arranged in depth adjustment block (54) and linking arm
The mobile adjustment gear mechanism of tooth (77) adaptation.
9. leafy adjustable brain section drag hook according to claim 6, it is characterized in that：The linking arm locking mechanism includes setting
In the linking arm clamping screw (72) on depth adjustment block (54), the linking arm clamping screw (72) can be by drag hook piece linking arm
(7) mutually locked with depth adjustment block (54).
10. leafy adjustable brain section drag hook according to claim 1, it is characterized in that：The drag hook piece (3) is in arc-shaped,
The vertical edge in drag hook piece (3) both sides sets thickening stem (32), is set between the thickening stem (32) that neighboring tunable drag hook piece (3) closes on
It is equipped with elastic membrane (33)；Elastic membrane (33) both sides of the edge set the crack sleeve (34) being adapted to thickening stem (32) external diameter, crack
Sleeve (34) lateral border is provided with and the crack of adjustable retractor piece (3) thickness adaptation；
Crack sleeve (34) is nested with and is temporarily fixed at thickening stem (32) outside, is pulled laterally with adjustable retractor piece (3), elasticity
Film (33) can synchronously open, not by external force when, elastic membrane (33) width and formed drag hook sleeve (31) when adjacent adjustable retractor piece
(3) lateral margin is apart from isometric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711202804.XA CN107714115A (en) | 2017-11-27 | 2017-11-27 | Leafy adjustable brain section drag hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711202804.XA CN107714115A (en) | 2017-11-27 | 2017-11-27 | Leafy adjustable brain section drag hook |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107714115A true CN107714115A (en) | 2018-02-23 |
Family
ID=61219426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711202804.XA Pending CN107714115A (en) | 2017-11-27 | 2017-11-27 | Leafy adjustable brain section drag hook |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107714115A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116172630A (en) * | 2023-04-27 | 2023-05-30 | 首都医科大学附属北京安贞医院 | Heart surface tissue retractor |
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| CN204484196U (en) * | 2015-02-04 | 2015-07-22 | 尹志伊 | Retractor for thoracic operation |
| CN205814363U (en) * | 2016-04-29 | 2016-12-21 | 复旦大学附属上海市第五人民医院 | A kind of equipment of adjustable operation drag hook |
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|---|---|---|---|---|
| US5947896A (en) * | 1996-04-26 | 1999-09-07 | United States Surgical Corporation | Heart stabilizer apparatus and method for use |
| US20050234304A1 (en) * | 2002-06-26 | 2005-10-20 | Sdgi Holdings, Inc. | Instruments and methods for minimally invasive tissue retraction and surgery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116172630A (en) * | 2023-04-27 | 2023-05-30 | 首都医科大学附属北京安贞医院 | Heart surface tissue retractor |
| CN116172630B (en) * | 2023-04-27 | 2023-08-04 | 首都医科大学附属北京安贞医院 | Heart surface tissue retractor |
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Application publication date: 20180223 |