CN207949948U - A kind of cranium brain channel location mechanism and positioning device applied on overlay film frame - Google Patents
A kind of cranium brain channel location mechanism and positioning device applied on overlay film frame Download PDFInfo
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- CN207949948U CN207949948U CN201820070530.7U CN201820070530U CN207949948U CN 207949948 U CN207949948 U CN 207949948U CN 201820070530 U CN201820070530 U CN 201820070530U CN 207949948 U CN207949948 U CN 207949948U
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- overlay film
- film frame
- frame
- detent mechanism
- fixing piece
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Abstract
The utility model is related to medical instruments fields, and in particular to a kind of cranium brain channel location mechanism and positioning device applied on overlay film frame, the detent mechanism include main shaft, hold up frame, strut part, locating ring, fixing piece；Locating ring thereon, which is movably arranged on, more than two holds up framves and two or more struts between part, the end of fixing piece is mounted in the circular orientation hole on locating ring simultaneously, stable position is carried out to fixing piece, fixing piece is circumferentially provided on overlay film frame, so that the overlay film frame in cranium brain channel is maintained at stable state, be not in the case where contraction is with whole wriggling sliding.Include the positioning device of above-mentioned detent mechanism, the overlay film frame in guide pipe is pushed into cranium brain channel by push rod, overlay film frame is in contraction state in guide pipe, it is pushed into behind cranium brain channel in expansion state, realize the expansion of cranium brain internal channel, ensure that surgical procedure Environmental security is reliable, reduces operation wound risk, improve the brainpan success rate of operation of patient.
Description
Technical field
The utility model is related to medical instruments fields, logical in particular to a kind of cranium brain applied on overlay film frame
Road detent mechanism and positioning device.
Background technology
Brain diseases lesion has more present encephalic, the diseases such as intracranial tumors, cephalophyma, leakage of cerebrospinal, clinically very
Need operation of opening cranium that could be cured more, in carrying out the operative processes such as tumor resection, reparation to intracranial lesion point, cranium
Intracerebral channel is expanded, and needs to use a set of cranium brain channel augmentation system, operation is made to have enough operating spaces and regard
Wild environment ensures that operation of opening cranium is smoothed out.Cranium brain internal channel is expanded, existing method is to push away cylindric structure of film
It is sent into brainpan channel, and is strutted by bracket institution, realize the expansion of cranium brain internal channel.This cylindrical shape holder film is known as covering
Membrane support, delivery device are known as overlay film frame pusher.
When overlay film frame keeps correct softened state in cranium brain channel, due to existing expansion method, overlay film frame
Not by position constraint in fixed position, at the same time, cranium brain channel changes to the extruding force moment of overlay film frame, can lead
Overlay film frame is caused to occur the case where shrinking with whole wriggling sliding in cranium brain channel, the expansion in cranium brain channel cannot be maintained at
Stable state is easy to bring obstacle and risk to operations on cranium and brain.Therefore, it is logical to be clinically badly in need of a kind of cranium brain with positioning function
Road augmentation system can keep cranium brain channel expansion state to stablize controlled, ensure operation while completing the expansion of cranium brain channel
Safe operating environment is reliable, reduces the instrument sexual trauma risk of surgical procedure, improves the brainpan success rate of operation of patient.
Invention content
To solve the above problems, the purpose of this utility model is to provide one kind can overlay film frame be carried out stable position
The cranium brain channel location mechanism applied on overlay film frame.
The purpose of this utility model, which also resides in, provides a kind of cranium brain channel location device including above-mentioned detent mechanism.
The purpose of this utility model is achieved through the following technical solutions：
One side according to the present utility model provides a kind of cranium brain channel location mechanism applied on overlay film frame,
Overlay film frame is cylindrical shape, and detent mechanism includes main shaft, holds up frame, struts part, locating ring, fixing piece；The quantity of fixing piece is
Two or more is circumferentially provided on overlay film frame；The quantity for holding up frame is two or more, is circumferentially movably arranged on main shaft；Support
The quantity for opening part is two or more, is circumferentially provided on main shaft；Locating ring be movably arranged on it is more than two hold up framves and two with
On strut part between, offer circular orientation hole on locating ring, the end of fixing piece is mounted in circular orientation hole.
Further, it holds up on frame and is provided with triangle gib head, fixing piece includes U-shaped elbow, and triangle gib head supports U-shaped elbow
Far from the end side for being mounted on circular orientation hole inner fixing member.
Further, fixing piece includes U-shaped fixed link, and U-shaped fixed link is fitted on the interior lateral surface of overlay film frame, U-shaped
The both ends of fixed link are respectively set to triangle cross break end and ball end, and circular orientation hole includes the annular square hole being connected and annular
Circular hole, triangle cross break end and ball end are separately mounted in annular square hole and annular circular hole.
Further, the bevelling installed convenient for triangle cross break end is offered on locating ring.
Further, the section for being fitted in the U-shaped fixed link on overlay film frame medial surface is in the first crescent, the first crescent moon
The arch of shape is towards overlay film frame；Be fitted in the U-shaped fixed link on overlay film frame lateral surface section be in the second crescent, second
The arch of crescent is far from overlay film frame.
Further, the end set of main shaft has pressing tablet, and the first spring, casing are set on main shaft, is connected on casing
There is conical expansion piece, hold up frame and casing connection and be fitted on conical expansion piece, the both ends of the first spring are separately connected
Pressing tablet and casing.
Further, strutting part includes：Strut, baffle ring, jacking block, second spring, strut narrow from the width from root to front end,
The root of strut is connect with main shaft, and baffle ring is arranged on strut, and second spring is sleeved on strut, and guiding is offered on jacking block
The front end in hole, strut is movably arranged in pilot hole, and the both ends of second spring are separately connected baffle ring and jacking block.
Further, detent mechanism further includes tightening ring, holds up frame and is arc-shaped, tightening ring lasso is held up in two or more
The outside of frame holds up and is provided with the upper stop piece and lower stop piece limited to tightening ring on frame.
Further, it is provided with fixed handle on locating ring, LED light is provided on the fixing piece in overlay film frame.
Another aspect according to the present utility model provides a kind of cranium brain channel location device, including：Any of the above-described
Detent mechanism, overlay film frame, pusher, pusher include push rod and guide pipe, and overlay film frame is arranged in guide pipe by pushing away
Bar is released, and the front end of overlay film frame is in gathering shape.
The cranium brain channel location mechanism of the utility model, locating ring thereon are movably arranged on more than two picking-up framves and two
Between strutting part more than a, while the end of fixing piece is mounted in the circular orientation hole on locating ring, is carried out to fixing piece steady
Positioning, fixing piece are circumferentially provided on overlay film frame so that and the overlay film frame in cranium brain channel is maintained at stable state,
The case where being not in contraction and whole wriggling sliding；Cranium brain channel location device including above-mentioned detent mechanism, by push rod
Overlay film frame in guide pipe is pushed into cranium brain channel, overlay film frame is in contraction state in guide pipe, and push-in cranium brain is logical
It is in expansion state behind road, realizes the expansion of cranium brain internal channel, ensures that surgical procedure Environmental security is reliable, reduce the instrument of surgical procedure
Sexual trauma risk improves the brainpan success rate of operation of patient.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model
It limits.In the accompanying drawings：
Fig. 1 is the structure chart of detent mechanism in the utility model；
Fig. 2 is the structure chart of overlay film frame in the utility model；
Fig. 3 is the structure chart after detent mechanism is connect with overlay film frame in the utility model；
Fig. 4 is the sectional view of fixing piece in the utility model；
Fig. 5 is the sectional view of detent mechanism part-structure in the utility model；
Fig. 6 is the sectional view of locating ring in the utility model；
Fig. 7 is the structure chart after fixing piece setting LED light in the utility model；
Fig. 8 is the structure chart of positioning device in the utility model；
Fig. 9 is structure chart when overlay film frame is compressed in the utility model；
Figure 10 is the structure chart that overlay film frame is connect with locating ring in the utility model；
Wherein reference numeral is：1, overlay film frame；2, main shaft；3, frame is held up；4, locating ring；5, fixing piece；6, annular is fixed
Position hole；7, triangle gib head；8, U-shaped elbow；9, triangle cross break end；10, ball end；11, annular square hole；12, annular circular hole；
13, bevelling；14, pressing tablet；15, the first spring；16, casing；17, expansion piece；18, strut；19, baffle ring；20, jacking block；21、
Second spring；22, pilot hole；23, tightening ring；24, upper stop piece；25, lower stop piece；26, fixed handle；27, LED light；28, it pushes away
Bar；29, guide pipe.
Specific implementation mode
In order to make those skilled in the art more fully understand the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of the utility model part, instead of all the embodiments.Based on the reality in the utility model
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts is all answered
When the range for belonging to the utility model protection.
As shown in Fig. 1 to 10, a kind of cranium brain channel location machine applied on overlay film frame of the utility model embodiment
Structure, overlay film frame 1 are cylindrical shape, and detent mechanism includes main shaft 2, holds up frame 3, struts part, locating ring 4, fixing piece 5；Fixing piece 5
Quantity be two or more, be circumferentially provided on overlay film frame 1；The quantity for holding up frame 3 is two or more, is circumferentially movably arranged on
On main shaft 2；The quantity for strutting part is two or more, is circumferentially provided on main shaft 2；Locating ring 4 is movably arranged on more than two supports
It rises between frame 3 and two or more strut part, circular orientation hole 6 is offered on locating ring 4, the end of fixing piece 5 is mounted on annular
In location hole 6.
The cranium brain channel location mechanism of the utility model, locating ring 4 thereon be movably arranged on it is more than two hold up framves 3 with
Between two or more struts part, while the end of fixing piece 5 is mounted in the circular orientation hole 6 on locating ring 4, to fixing piece 5
Stable position is carried out, fixing piece 5 is circumferentially provided on overlay film frame 1 so that the overlay film frame 1 in cranium brain channel is maintained at
The case where stable state is not in contraction and whole wriggling sliding, convenient for operation.
Preferably, referring to Fig. 5, fixing piece 5 includes U-shaped fixed link, holds up and is provided with triangle gib head 7, fixing piece on frame 3
5 include U-shaped elbow 8, and triangle gib head 7 supports U-shaped elbow 8 far from the end side for being mounted on 6 inner fixing member 5 of circular orientation hole.
The triangle gib head 7 for holding up 3 end of frame and the U-shaped elbow 8 in part of U-shaped fixed link coordinate, for blocking U-shaped fixed link.
Preferably, referring to Fig. 5-6, U-shaped fixed link is fitted on the interior lateral surface of overlay film frame 1, the two of U-shaped fixed link
End is respectively set to triangle cross break end 9 and ball end 10, and circular orientation hole 6 includes the annular square hole 11 being connected and annular circular arc
Hole 12, triangle cross break end 9 and ball end 10 are separately mounted in annular square hole 11 and annular circular hole 12.It is opened up on locating ring 4
There is the bevelling 13 installed convenient for triangle cross break end 9.The join dependency of locating ring 4 and U-shaped fixed link in 4 section of locating ring not
Regular slot structure, the position of slot cross-section in the outer part, for being connected with the triangle cross break end 9 of U-shaped fixed link, arc in the inner part
Shape position is used to the ball end 10 of U-shaped fixed link be that small ball is connected.
Preferably, referring to Fig. 4, the section for being fitted in the U-shaped fixed link on 1 medial surface of overlay film frame is in the first crescent moon
Shape, the arch of the first crescent is towards overlay film frame 1；The section of the U-shaped fixed link on 1 lateral surface of overlay film frame is fitted in the
Two crescent, the arch of the second crescent is far from overlay film frame 1.U-shaped fixed link is directly through overlay film frame 1, inside cross-sectional
Crescent, outer lateral section be crescent, such structure setting can make U-shaped fixed link inside outside can good fit cover
Membrane support 1, and be clamped.
Preferably, the end set of main shaft 2 has pressing tablet 14, it is set with the first spring 15, casing 16 on main shaft 2, covers
It is connected with conical expansion piece 17 on pipe 16, holds up frame 3 and connect and be fitted on conical expansion piece 17 with casing 16, the first bullet
The both ends of spring 15 are separately connected pressing tablet 14 and casing 16.Strutting part includes：Strut 18, baffle ring 19, jacking block 20, second spring
21, strut 18 narrows from the width from root to front end, and the root of strut 18 is connect with main shaft 2, and baffle ring 19 is arranged on strut 18, the
Two springs 21 are sleeved on strut 18, and pilot hole 22 is offered on jacking block 20, and the front end of strut 18 is movably arranged on pilot hole 22
Interior, the both ends of second spring 21 are separately connected baffle ring 19 and jacking block 20.Detent mechanism further includes tightening ring 23, holds up frame 3 in circle
Arc, 23 lasso of tightening ring are held up to be provided on frame 3 and are limited to tightening ring 23 in more than two outsides for holding up framves 3
Upper stop piece 24 and lower stop piece 25.
In above-mentioned preferred technical solution, holds up frame 3 and radially strut overlay film frame 1, need main shaft 2, the first bullet
Spring 15, expansion piece 17, tightening ring 23, strut 18, second spring 21, the cooperation of locating ring 4 are completed.The release of main shaft 2 can drive
Strut 18, which is axially moved, to be released, and at the same time, after fixing piece 5 is installed, is held pressing tablet 14, is pulled casing 16, holds up frame 3 and receive
Locating ring 4 is fixed on and holds up between frame 3 and jacking block 20 by contracting, and second spring 21 is compressed, and the restoring force of generation pushes main shaft 2
On picking-up frame 3 radial strut so that 4 stable position of locating ring.
The expansion piece 17 for holding up 3 inside of frame ensures that holding up frame 3 keeps opening.Holding up the tightening ring 23 in 3 outside of frame can hold in the palm
Rise frame 3 two limit catch between slide, this catch be located at hold up 3 circular arc of frame, make picking-up frame 3 have opening and closing regulating power.
The cooperation of tightening ring 23 and expansion piece 17 enables to hold up the stable state opened of the holding of frame 3, and so that holding up frame 3 has one
Fixed support stiffness.
The inside of locating ring 4 is connect with strut 18, strut 18 from root to end by width to it is narrow being capable of proof strength.Strut 18
On baffle ring 19 and jacking block 20 between be provided with second spring 21, during strutting, locating ring 4 may be implemented in spring-return power
Radial direction struts preload and positioning.4 axial end face of locating ring is contacted with the jacking block 20 of strut 18, is realized that locating ring 4 is axial and is released in advance
Tight and positioning.
Preferably, being provided with fixed handle 26 on locating ring 4, fixed handle 26 is fixed on to some position of operating table
It sets, it is firm convenient for the positioning of detent mechanism.Referring to Fig. 7, it is provided with LED light 27 on the fixing piece 5 in overlay film frame 1, uses
In illumination, convenient for operation.
Another embodiment of the utility model provides a kind of cranium brain channel location device, referring to Fig. 8, including：Above-mentioned
One detent mechanism, overlay film frame 1, pusher, pusher include push rod 28 and guide pipe 29, and the setting of overlay film frame 1 is being led
It is released into pipe 29 by push rod 28, the front end of overlay film frame 1 is in gathering shape.
In cranium brain channel location device, the overlay film frame 1 in guide pipe 29 is pushed into cranium brain channel by push rod 28,
Overlay film frame 1 is in contraction state in guide pipe 29, shown in Figure 9, is in expansion state behind push-in cranium brain channel, realizes cranium brain
Internal channel is expanded, and is ensured that surgical procedure Environmental security is reliable, is reduced the instrument sexual trauma risk of surgical procedure, improve the brain of patient
Cranium success rate of operation.I.e. for the realization of cranium brain internal channel expansion action, using the axial push-in of overlay film frame 1 and radial support
It opens, and is fixed on the positioning, keep channel expansion state.The axial push-in action of overlay film frame 1 has been pushed by pusher external force
At.The radial distracting action of overlay film frame 1 is replied by the second spring 21 held up on frame 3 and strut 18 to be completed under force effect.It covers
Position positioning and constraint of the membrane support 1 in cranium brain channel, are completed by locating ring 4 and U-shaped fixed link.
Overlay film frame 1 is made of cylindrical metal holder and the special film property material of coating.The front end of overlay film frame 1 is to collapse
Cone structure, the structure are conducive to overlay film frame 1 and enter in cranium brain.The rear end of overlay film frame 1 passes through U-shaped fixed link and picking-up frame
3 and locating ring 4 connect, hold up frame 3 and locating ring 4 movement can pass to overlay film frame 1 by U-shaped fixed link.
Pusher used in overlay film frame is similar with the medicament injector structure of Clinical practice, by push rod 28 and guide pipe
29 compositions.Push push rod 28 that can strut overlay film frame 1, guide pipe 29 can be oriented to the push of overlay film frame 1.
Locating ring 4 is connect with overlay film frame 1 by U-shaped fixed link.Locating ring 4 is radial to be strutted and positions, it is axial release and positioning, can be with
By U-shaped fixed link, realizes the release of overlay film frame 1, struts, location action.
In use, being expanded to cranium brain internal channel, the overlay film frame 1 of tightening state is pushed into cranium brain with pusher
The interior channel for needing to expand, during release, overlay film frame 1 opens completely after slowly opening until releasing（Overlay film at this time
It stays outside cranium brain the upper end of holder 1）, because when overlay film frame 1 keeps softened state in cranium brain channel, when cranium brain channel is per
It often carves and is all squeezed to overlay film frame 1, according to the characteristic of overlay film frame 1, overlay film frame 1 can be according to crowded when being squeezed
The degree of pressure and shunk, the circle diameter of overlay film frame 1 becomes smaller when overlay film frame 1 is shunk, axial length become
It is long.It is small so that when length duration of overlay film frame 1 is short when big when cranium brain channel is to the extruding force of overlay film frame 1, lead to overlay film branch
Frame 1 the case where displacement may occur in cranium brain channel, so clamping overlay film branch with locating ring 4 after overlay film frame 1 struts
The upper end of frame 1, it is shown in Figure 10, the upper end for withstanding overlay film frame 1 is then held up with detent mechanism, keeps overlay film frame 1
Position displacement will not occur because of the variation of length in upper end, can prevent sliding onto for the whole wriggling of overlay film frame 1 in this way
Inside the cranium, and overlay film frame 1 can be prevented by cranium brain channel to a certain extent in the circumference of 1 upper end of holding overlay film frame
It squeezes and is shunk.
The innovative point of the utility model is：
1. the realization for cranium brain internal channel expansion action, the axial push-in action of overlay film frame 1 outside pusher by pushing
Enter to complete.The radial distracting action of overlay film frame 1 is replied complete under force effect by the second spring 21 held up on frame 3 and strut 18
At.Position positioning and constraint of the overlay film frame 1 in cranium brain channel, are completed by locating ring 4 and U-shaped fixed link.
2. the front end of overlay film frame 1 is to collapse cone structure, which is conducive to overlay film frame 1 and enters in cranium brain.Overlay film
The rear end of holder 1 is connect by U-shaped fixed link with picking-up frame 3 and locating ring 4, is held up the movement of frame 3 and locating ring 4 and can be passed through
U-shaped fixed link passes to overlay film frame 1.
3. pusher is similar with the medicament injector structure of Clinical practice, it is made of push rod 28 and guide pipe 29.Promotion pushes away
Bar 28 can strut overlay film frame 1, and guide pipe 29 can be oriented to the push of overlay film frame 1.
4. holding up frame 3 radially to strut overlay film frame 1, main shaft 2, the first spring 15, expansion piece 17, tightening ring are needed
23, strut 18, second spring 21, the cooperation of locating ring 4 are completed.The release of main shaft 2 can drive strut 18 to be axially moved and release, with
This after installing fixing piece 5, holds pressing tablet 14, pulls casing 16 simultaneously, holds up frame 3 and shrinks, locating ring 4 is fixed on support
It rising between frame 3 and jacking block 20, second spring 21 is compressed, and the restoring force of generation pushes the picking-up frame 3 on main shaft 2 is radial to strut,
Make 4 stable position of locating ring.
5. the expansion piece 17 for holding up 3 inside of frame ensures that holding up frame 3 keeps opening.The tightening ring 23 for holding up the outside of frame 3 can be
It is slided between two limit catch of picking-up frame 3, this catch, which is located at, holds up 3 circular arc of frame, and picking-up frame 3 is made to have opening and closing adjusting energy
Power.The cooperation of tightening ring 23 and expansion piece 17 enables to hold up the stable state opened of the holding of frame 3, and to hold up the tool of frame 3
Standby certain support stiffness.
6. the inside of locating ring 4 is connect with strut 18, strut 18 from root to end by width to it is narrow being capable of proof strength.Strut
Second spring 21 is provided between baffle ring 19 on 18 and jacking block 20, during strutting, spring-return power may be implemented to position
Circle 4 is radial to strut preload and positioning.4 axial end face of locating ring is contacted with the jacking block 20 of strut 18, is realized that locating ring 4 is axial and is released
It pre-tightens and positions.
7. locating ring 4 is connect with overlay film frame 1 by U-shaped fixed link.Locating ring 4 is radial to be strutted and positions, axially releases
And positioning, it by U-shaped fixed link, can realize the release of overlay film frame 1, strut, location action.
8. locating ring 4 and the join dependency of U-shaped fixed link are in the irregular slot structure in 4 section of locating ring, slot cross-section is outer
The position of side, for being connected with the triangle cross break end 9 of U-shaped fixed link, arc part in the inner part is used for and U-shaped fixed link
Ball end 10 be that small ball is connected.The U-shaped elbow in the part of the triangle gib head 7 for holding up frame 3 end and U-shaped fixed link 8 is matched
It closes, for blocking U-shaped fixed link.
For 9.U types fixed link directly through overlay film frame 1, inside cross-sectional is crescent, and outer lateral section is crescent, such
Structure setting can make U-shaped fixed link inside outside can good fit overlay film frame 1, and be clamped, realize U-shaped fixation
Bar expands the receipts of overlay film frame 1, passes in and out, location control.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of cranium brain channel location mechanism applied on overlay film frame, the overlay film frame is cylindrical shape, which is characterized in that
The detent mechanism includes main shaft, holds up frame, struts part, locating ring, fixing piece；The quantity of the fixing piece is two or more,
It is circumferentially provided on the overlay film frame；The quantity for holding up frame is two or more, is circumferentially movably arranged on the main shaft；
The quantity for strutting part is two or more, is circumferentially provided on the main shaft；The locating ring is movably arranged on two or more
Between strutting part described in the picking-up frame and two or more, circular orientation hole is offered on the locating ring, the fixing piece
End is mounted in the circular orientation hole.
2. detent mechanism according to claim 1, which is characterized in that it is provided with triangle gib head on the picking-up frame, it is described
Fixing piece includes U-shaped elbow, and it is described solid in the circular orientation hole far from being mounted on that the triangle gib head supports the U-shaped elbow
Determine the end side of part.
3. detent mechanism according to claim 1, which is characterized in that the fixing piece includes U-shaped fixed link, described U-shaped
Fixed link is fitted on the interior lateral surface of the overlay film frame, and the both ends of the U-shaped fixed link are respectively set to triangle cross break end
With ball end, the circular orientation hole includes the annular square hole being connected and annular circular hole, triangle cross break end and ball
End is separately mounted in the annular square hole and annular circular hole.
4. detent mechanism according to claim 3, which is characterized in that offered on the locating ring convenient for triangle cross
Roll over the bevelling of end installation.
5. detent mechanism according to claim 3, which is characterized in that be fitted in described on the overlay film frame medial surface
The section of U-shaped fixed link is in the first crescent, and the arch of first crescent is towards the overlay film frame；It is fitted in described cover
The section of the U-shaped fixed link on membrane support lateral surface is in the second crescent, and the arch of second crescent is far from described
Overlay film frame.
6. detent mechanism according to claim 1, which is characterized in that the end set of the main shaft has pressing tablet, described
It is set with the first spring, casing on main shaft, conical expansion piece is connected in described sleeve pipe, the picking-up frame connects with described sleeve pipe
It connects and is fitted on the conical expansion piece, the both ends of first spring are separately connected the pressing tablet and described sleeve pipe.
7. detent mechanism according to claim 1, which is characterized in that the part that struts includes：Strut, baffle ring, jacking block,
Two springs, the strut narrow from the width from root to front end, and the root of the strut is connect with the main shaft, the baffle ring setting
On the strut, the second spring is sleeved on the strut, offers pilot hole on the jacking block, before the strut
End is movably arranged in the pilot hole, and the both ends of the second spring are separately connected the baffle ring and the jacking block.
8. detent mechanism according to claim 1, which is characterized in that the detent mechanism further includes tightening ring, the support
It plays frame to be arc-shaped, the tightening ring lasso is provided on more than two outsides for holding up frame, the picking-up frame to institute
State the upper stop piece and lower stop piece that tightening ring is limited.
9. detent mechanism according to claim 1, which is characterized in that be provided with fixed handle on the locating ring, be located at
It is provided with LED light on the fixing piece in the overlay film frame.
10. a kind of cranium brain channel location device, which is characterized in that including：Claim 1-9 any one of them detent mechanism,
Overlay film frame, pusher, the pusher include push rod and guide pipe, and the overlay film frame setting passes through in the guide pipe
The push rod is released, and the front end of the overlay film frame is in gathering shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820070530.7U CN207949948U (en) | 2018-01-16 | 2018-01-16 | A kind of cranium brain channel location mechanism and positioning device applied on overlay film frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820070530.7U CN207949948U (en) | 2018-01-16 | 2018-01-16 | A kind of cranium brain channel location mechanism and positioning device applied on overlay film frame |
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| Publication Number | Publication Date |
|---|---|
| CN207949948U true CN207949948U (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820070530.7U Expired - Fee Related CN207949948U (en) | 2018-01-16 | 2018-01-16 | A kind of cranium brain channel location mechanism and positioning device applied on overlay film frame |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112522496A (en) * | 2020-12-07 | 2021-03-19 | 北京泰杰伟业科技有限公司 | Heat treatment clamp for vascular stent prefabrication molding |
| CN112891020A (en) * | 2020-12-31 | 2021-06-04 | 深圳市先健畅通医疗有限公司 | Lumen device, conveyor and covered stent |
-
2018
- 2018-01-16 CN CN201820070530.7U patent/CN207949948U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112522496A (en) * | 2020-12-07 | 2021-03-19 | 北京泰杰伟业科技有限公司 | Heat treatment clamp for vascular stent prefabrication molding |
| CN112891020A (en) * | 2020-12-31 | 2021-06-04 | 深圳市先健畅通医疗有限公司 | Lumen device, conveyor and covered stent |
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