CN107714127A - The controllable vascular occlusion device of implanted - Google Patents
The controllable vascular occlusion device of implanted Download PDFInfo
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- CN107714127A CN107714127A CN201710884254.8A CN201710884254A CN107714127A CN 107714127 A CN107714127 A CN 107714127A CN 201710884254 A CN201710884254 A CN 201710884254A CN 107714127 A CN107714127 A CN 107714127A
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- electroactive polymer
- slide rail
- polymer material
- roll shaft
- housing
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- 206010053648 Vascular occlusion Diseases 0.000 title claims abstract description 19
- 208000021331 vascular occlusion disease Diseases 0.000 title claims abstract description 19
- 229920001746 electroactive polymer Polymers 0.000 claims abstract description 73
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 44
- 239000002861 polymer material Substances 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 2
- 239000010408 film Substances 0.000 claims 4
- 239000010409 thin film Substances 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 11
- 210000001367 artery Anatomy 0.000 abstract description 10
- 230000036770 blood supply Effects 0.000 abstract description 10
- 201000010099 disease Diseases 0.000 abstract description 7
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 7
- 206010028980 Neoplasm Diseases 0.000 abstract description 6
- 210000005013 brain tissue Anatomy 0.000 abstract description 5
- 206010008118 cerebral infarction Diseases 0.000 abstract description 5
- 208000026106 cerebrovascular disease Diseases 0.000 abstract description 4
- 230000001447 compensatory effect Effects 0.000 abstract description 4
- 201000008450 Intracranial aneurysm Diseases 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 3
- 239000007943 implant Substances 0.000 abstract description 3
- 210000001154 skull base Anatomy 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 abstract description 2
- 230000003902 lesion Effects 0.000 abstract description 2
- 208000018152 Cerebral disease Diseases 0.000 abstract 1
- 230000003447 ipsilateral effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 210000003205 muscle Anatomy 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001727 in vivo Methods 0.000 description 4
- 206010002329 Aneurysm Diseases 0.000 description 3
- 208000007536 Thrombosis Diseases 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 206010048964 Carotid artery occlusion Diseases 0.000 description 2
- 241001125879 Gobio Species 0.000 description 2
- 206010070995 Vascular compression Diseases 0.000 description 2
- 206010048038 Wound infection Diseases 0.000 description 2
- 210000004004 carotid artery internal Anatomy 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 206010025482 malaise Diseases 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 208000024891 symptom Diseases 0.000 description 2
- 201000006474 Brain Ischemia Diseases 0.000 description 1
- 206010008120 Cerebral ischaemia Diseases 0.000 description 1
- 206010069729 Collateral circulation Diseases 0.000 description 1
- 101800004637 Communis Proteins 0.000 description 1
- 208000005189 Embolism Diseases 0.000 description 1
- 238000002266 amputation Methods 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 210000004720 cerebrum Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000010102 embolization Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 208000028867 ischemia Diseases 0.000 description 1
- 230000000302 ischemic effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/122—Clamps or clips, e.g. for the umbilical cord
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00017—Electrical control of surgical instruments
- A61B2017/00212—Electrical control of surgical instruments using remote controls
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
- A61B2017/00411—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like actuated by application of energy from an energy source outside the body
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Reproductive Health (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to a kind of controllable vascular occlusion device of implanted, including housing, actuator and control module.Housing accommodates blood vessel, and carries actuator and control module；Control module provides electric energy and control signal to actuator；Actuator includes slide rail, roll shaft and electroactive polymer material, and electroactive polymer material is deformed upon and stretched along slide rail after energization, is moved so as to oppress roll shaft along slide rail, and roll shaft produces extruding to blood vessel, so that the gradual locking of blood vessel.The present invention be directed to what is treated before intracranial aneurysm, tumor of base of skull or the demand of other cerebral diseases, and existing treatment blocking lesion blood supply internal carotid method deficiency in advance and design.The present apparatus can completely implant, and it is wrapped in outside blood vessel, controllably, slowly inaccessible internal carotid, the brain tissue of internal carotid blood supply is set to obtain the compensatory blood supply of other blood vessels, break away from the dependence to the artery, then cerebral infarction would not be caused by cutting off internal carotid again, be created conditions for disease treatment.
Description
Technical field
The present invention relates to technical field of medical instruments, more particularly to a kind of controllable vascular occlusion device of implanted.
Background technology
The intracranial aneurysm incidence of disease is 0.4%-3.6%, wherein there are about 10% is giant aneurysm（Such as the prominent huge artery of bed
Knurl）.Risk of rupture be present in aneurysm, once rupture threat to life, it is therefore necessary to actively carry out surgical procedure.But huge artery
Knurl volume is big, can not interventional embolization, can not also carry out surgical clips and close, treatment it is very intractable.Therapeutic strategy is usually first at present
Internal carotid is blocked, aneurysm is then carried out and isolates and bypass operation of building bridge.
The tumor of base of skull of huge wrapping internal carotid, tumour is extremely close with internal carotid relation, and separation is difficult, excision
During tumour, internal carotid and category branch are difficult to preserve, or even often have to the internal carotid by tumour wrapping together with swollen
Knurl is cut off in the lump.
The treatment of both the above disease surgery is both needed to blocking lesion side internal carotid, but internal carotid is closed or cut by folder suddenly
Having no progeny can cause the brain tissue of arterial distal blood supply to block, and produce serious consequence.
Traditional means to save the situation is：It is external in advance before surgery to press Ipsilateral internal carotid（Matas is tested）, by arteria carotis communis
The 6th transverse process of cervical vertebra is pressed to, exercise daily is several times.Through repetition training after a while, contralateral internal carotid is promoted to build
Found the collateral circulation compensation to Ipsilateral.If being resistant to more than 30min to press and show without cerebral ischemia, offside side shoot generation can be considered
Abundant opening is repaid, meets the condition that Ipsilateral internal carotid is cut off in art.Ipsilateral internal carotid cut-out is now carried out in theory, can be with
Avoid distal end cerebrum ischemia infraction.But the experiment is by external manual operations, poor reliability, though sometimes by pressure measurement by compression of neck,
But still there is severe reaction after internal carotid amputation.
Also there is the method that internal carotid artery occlusion is carried out by neck implantation instrument.Operation is implanted into internal carotid blood vessel in neck
Folder closes device, but existing device some want it is exposed infection risk is higher in vitro, not clinical commonly used.
An also method is to intervene intravascular balloon embolism, interruption artery blood flow.But this method can only carry out it is short
Temporarily, disposable blood vessel blocking（30 minutes）, long-term slowly vascular occlusion process can not be realized, thrombosis wind also be present
Danger.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of controllable vascular occlusion device of implanted, the device can expire
The foot inaccessible Ipsilateral internal carotid of safety, and efficiently against technical problem present in existing internal carotid artery occlusion technology in advance.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
A kind of controllable vascular occlusion device of implanted, including housing, actuator and control module, have in the housing and run through shell
The passage of body, the housing can free closure or openness so that blood vessel can be included into or remove passage；The control module is used
Electric energy is provided in control signal and to actuator；The actuator devices in housing, the actuator include slide rail, can be along institute
The electroactive polymer material of the roll shaft and device of slide rail movement in the slide rail is stated, it is described after the actuator is powered
Electroactive polymer material is deformed upon and stretched along the slide rail, is moved so as to oppress the roll shaft along the slide rail, described
Roll shaft produces extruding in moving process to the blood vessel being included into the passage, so that the gradual locking of blood vessel.This locking fills
Putting completely to implant, and realize outside blood vessel controllably, slowly locking, during artery gradually occlusion, promote neck
The brain tissue of interior artery blood supply obtains the compensatory blood supply of other blood vessels, breaks away from the dependence to Ipsilateral internal carotid.Until device is complete
Fully closed plug internal carotid, patient tolerance and when being showed without ischemic, then cut off internal carotid and would not cause cerebral infarction, controlled for disease
Treatment creates conditions.
Further, position corresponding with passage on the housing is provided with opening and for being turned on and off being open
Door.
Further, the electroactive polymer material is the electroactive polymer film of multilayer folding.
Further, the electroactive polymer material is electroactive polymer fibre bundle.
Further, the electroactive polymer material is the electroactive polymer film for being rolled into cylindrical shape.
Further, returning apparatus has spring in the slide rail, and the spring is used to resist stretching for electroactive polymer material
Zhan Li, after the compressing of electroactive polymer material roll shaft releases, roll shaft can be resetted, release the compressing to blood vessel.
Further, the spring distinguishes device in the slide rail of roll shaft both sides with the electroactive polymer material.
Further, the spring and the electroactive polymer material device are in the slide rail of roll shaft homonymy, the electricity
Active polymer material is to be rolled into the electroactive polymer film of cylindrical shape, and the electroactive polymer film wraps up the spring
Or the electroactive polymer film apparatus is in the spring.
Further, the spring and the electroactive polymer material device are in the slide rail of roll shaft homonymy, the electricity
Active polymer material is electroactive polymer fibre bundle, and the electroactive polymer fiber bundle device is in the spring.
Further, the control module device is on the inwall of housing.
Further, the control module includes control chip, voltage transformation module and battery pack.
Further, the control module is provided with radio receiving unit, for receiving and recognizing the signal being wirelessly transferred.
Further, be additionally provided with fixed structure on the housing, the fixed structure be annular projection, annular groove or
Person tunnel.
The present invention is related to the brain that inaccessible internal carotid is needed in therapeutic process for treatment intracranial aneurysm, tumor of base of skull etc.
Portion's Disease Concern, and the existing deficiency for blocking internal carotid method, devising one kind can completely implant and be located at blood vessel
Outer controllable blocking device.The blocking device can be fully implanted in vivo, be partially exposed at it is external compared with, blood vessel clip closes device
Reduce wound infection risk；The blocking device is arranged on outside blood vessel simultaneously, with carrying out locking blood vessel using intravascular balloon expansion
Compared to avoiding thrombosis risk.The device can slow inaccessible internal carotid, during artery gradually occlusion, in neck
The brain tissue of artery blood supply can obtain the compensatory blood supply of other blood vessels, break away from the dependence to internal carotid, then cut off neck again
Interior artery would not cause cerebral infarction, be created conditions for disease treatment.The present apparatus includes insurance design simultaneously, and by external
It is program control, the contraction and extension of actuator can be freely adjusted, can be through vitro program controlled control if locking is too fast to cause malaise symptoms
Locking velocity or retraction actuator release vascular compression, or cut off the electricity supply, and reset the automatic traction rollers of spring, play guarantee and close
The effect of process safety is locked, ensures patient safety.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is the structural representation in present invention when overlooking visual angle relative to Fig. 1；
Fig. 3 is the structural representation of A-A planing surfaces in Fig. 1；
Fig. 4 is structural representation when spring of the present invention is in roll shaft with wood side-guide with electroactive polymer material；
Fig. 5 is the structural representation when fixed structure of the present invention is annular projection；
Fig. 6 is the structural representation when fixed structure of the present invention is annular groove；
Fig. 7 is the structural representation when fixed structure of the present invention is tunnel；
Wherein, the piece number in figure is expressed as：
1. housing, 3. control modules, 4. blood vessels, 11. passages, 12., 21. slide rails, 22. roll shafts, 23. electroactive polymer materials
Material, 24. springs, 25. annular projections, 26. annular grooves, 27. tunnels.
Embodiment
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.Principle below in conjunction with accompanying drawing to the present invention
It is described with feature, it is necessary to illustrate, in the case where not conflicting, the feature in embodiment and embodiment in the application
It can be mutually combined.The given examples are served only to explain the present invention, is not intended to limit the scope of the present invention.
Fig. 1 to Fig. 3 is refer to, the controllable vascular occlusion device of implanted includes housing 1, actuator and control module 3.Housing
1 is used to carry control module 3 and actuator, has the passage 11 through housing 1 in housing 1, housing 1 freely can be opened or closed
Close, so that blood vessel 4 can be included into or remove passage 11；Control module 3 is used to provide electric energy, actuating to actuator controllablely
Device can deform upon after powered up, and oppress the blood vessel 4 for being included into housing 1, so that 4 gradual locking of blood vessel.
Housing is made up of hard material, and the pressure of the device is applied to for resisting externus muscle or accident collision, is prevented
Only housing compressive deformation, so as to its protective effect of device internal structure.Passage 11 is enclosed by housing 1 and formed, and with housing 1
Portion's cavity is connected, can be by the bottom design camber of passage 11 for the ease of carrying blood vessel 4.On housing 1 with passage 11
Corresponding position, is provided with opening and the door 12 for being turned on and off opening, and door 12 passes through connector activity with housing 1
Connection, makes housing 1 be easy to open and close, shortens the operating time for blood vessel 4 being included or being removed passage 11.
As shown in Figures 5 to 7, in order to prevent blocking device slides in vivo from coming off, can be provided on housing 1 with
The fixed structure that Surrounding muscles are fixed.Specifically, fixed structure can set the surface of housing 1 to be provided with annular projection 25, lead to
Cross convex 25 of ring-type to suture blocking device and Surrounding muscles, so as to the position of fixed latch device in vivo；Or in housing 1
Outer surface is provided with annular groove 26, suture etc. by annular groove 26 after housing, housing 1 and muscle is sutured solid
It is fixed；Fixed structure can also be the tunnel 27 being opened on housing 1, and the outlet of the both ends of tunnel 27 is arranged on the outer surface of housing 1,
Suture etc. passes through tunnel 27 and to be sutured with muscle, so as to the position of fixed latch device in vivo.
The present invention does not have particular/special requirement to the profile of housing 1, if but housing is that both ends have the cylindrical shape of end cap, ellipticity
Or during other smooth structures without corner angle, resistance when being implanted into human body and friction can be reduced, after can also reducing its implantation human body
To damage caused by surrounding tissue possibility, and reduce the sense of discomfort brought and foreign body sensation.
Control module 3 be used for control signal and it is controllable provide electric energy to actuator, control module 3 includes control core
Piece, voltage conversion diaphragm and battery pack, wherein control chip are for receiving, handling, storing, output control signal, voltage conversion
Module is used for the conversion of cell output voltage, and to meet electroactive polymer material driving voltage demand, battery pack is used for control
Molding block 3 and actuator provide electric energy.
Control program can be set in control module 3 in advance, make the present invention after human body is implanted into by preassigned pattern（When default
Between, default locking velocity and locking degree etc.）Automatically control the locking of blood vessel 4；Also blood can neatly be adjusted according to patient profiles
The latching process of pipe 4, wireless receiving module can be set in control module 3, for identifying and receiving the signal being wirelessly transferred, and
Signal after identification is transmitted to the latching process that controlled in wireless blood vessel 4 in real time is realized to control chip；Can also be in control mould
Set up in block 4 measurement for relevant parameter, analyzing and processing and the unit to actuator feedback, allow blocking device according to
Measurement data adjusts latching process, strengthens adaptivity.
Control module 3 may be mounted at outside housing 1 or in housing 1, but in order that the globality of the present invention is more preferable, simultaneously
Resistance when being implanted into human body and friction are reduced, can also reduce it and be implanted into the sense of discomfort brought after human body to human body and foreign body sensation, it is excellent
Control module 3 is arranged in housing 1 by choosing.
Electroactive polymer（Electroactive Polymer,EAP）（Also referred to as artificial thews material）In extra electric field
It is scalable under effect, can make electroactive polymer repeated deformation by applying external voltage, reducing or releasing applied electricity
During pressure, electroactive polymer can recover original shape, and can pass through its state of the voltage trim of regulation application.The present invention
Using the above-mentioned characteristic of electroactive polymer, to build actuator.
For actuator devices in housing 1, it includes slide rail 21, roll shaft 22 and electroactive polymer material 23.
Slide rail 21 is arranged to two and accordingly on the both sides inwall of housing 1, slide rail 21 is inclined at logical device
The top in road 11.
The both ends of roll shaft 22 are respectively arranged with gudgeon, and two gudgeons distinguish device in two one slide rails 21, make roll shaft 22 can
Move along slide rail 21, and during the slide downward of roll shaft 22, the blood vessel 4 being included into the passage 11 can be produced
Extruding, so that 4 gradual locking of blood vessel.
The device of electroactive polymer material 23 is in the slide rail 21 away from the bottom side of passage 11, electroactive polymer material
23 be the electroactive polymer film of multilayer folding, and the film is the stratiform knot for being made and including electrode with electroactive polymer
Structure body.After actuator is powered, the electroactive polymer film of multilayer folding is deformed upon and stretched along slide rail 21, so as to promote roller
Axle 22 moves down along slide rail 21, and roll shaft 22 produces extruding during moving down to the blood vessel 4 that is included into passage 11, makes
4 gradual locking of blood vessel.Jagged film is formed using folding, makes that actuator structure is compact, lightweight material-saving.
Electroactive polymer material 23 can also be the electroactive polymer film for being rolled into cylindrical shape.It is cylindric electroactive poly-
The axis direction of compound film is consistent with the bearing of trend of slide rail 21, after actuator is powered, cylindric electroactive polymer film hair
Raw deformation is simultaneously stretched along slide rail 21, and so as to promote roll shaft 22 to be moved down along slide rail 21, roll shaft 22 is during moving down
Extruding is produced to the blood vessel 4 being included into passage 11, makes 4 gradual locking of blood vessel.After electroactive polymer material is rolled into cylindrical shape,
Its axially compressed behavior improves, and axially extends after powered up and is not susceptible to flexural deformation during promoting piston, favorably
In the accurate control to latching process, so as to improve performance of the present invention.
Electroactive polymer material 23 can also be electroactive polymer fibre bundle, the fibre bundle electroactive polymer system
Into and include electrode.Electroactive polymer fibre bundle length direction is consistent with the bearing of trend of slide rail 21, after actuator is powered, electricity
Living polymer fibre bundle is deformed upon and stretched along slide rail 21, so as to promote roll shaft 22 to be moved down along slide rail 21, roll shaft 22
Extruding is produced to the blood vessel 4 being included into passage 11 during moving down, makes 4 gradual locking of blood vessel.This is electroactive poly-
Compound material structure is simple, easily fabricated.
Such scheme is further optimized, the setting spring 24 in slide rail 21, the spring 24 is electroactive for resisting
The stretching force of polymeric material 23, roll shaft 22 is set to be answered after the compressing of the roll shaft 22 of electroactive polymer material 23 releases
Position, so as to release the compressing to blood vessel 4, strengthen the security of the present invention.
The installation form of spring 24 can have a variety of, both spring 24 and electroactive polymer material 23 can be distinguished into device
In the slide rail 21 of the both sides of roll shaft 22（Such as Fig. 1 to Fig. 2）, now electroactive polymer material 23 can be that the electricity of multilayer folding is living
Property thin polymer film, it is rolled into cylindric electroactive polymer film or living polymer fibre bundle etc.；Can also be by spring 24
With the device of electroactive polymer material 23 in the slide rail 21 of the homonymy of roll shaft 22（Such as Fig. 4）, now electroactive polymer material 23
To be rolled into the electroactive polymer film of cylindrical shape and wrapping up the spring 24, or electroactive polymer material 23 is electroactive
Polymer fiber beam, and electroactive polymer fiber bundle device is in spring 24.
In the present invention, can be packaged outside actuator using film, its deformation of the actuator after encapsulation is not by film
Hinder, the preferred scheme avoids body fluid from penetrating into actuator, and protection and insulating effect are played to actuator.
Actuator is made using the electrostrictive characteristic of electroactive polymer material in the present invention, and by setting control module
The present invention completely can be implanted into human body, be partially exposed at it is external compared with, blood vessel clip, which closes device, reduces wound infection wind
Danger；The blocking device is arranged on outside blood vessel simultaneously, and thrombus shape is avoided compared with carrying out locking blood vessel using intravascular balloon expansion
Into risk.The present apparatus can controllably slowly inaccessible internal carotid, artery gradually occlusion during, internal carotid blood supply
Brain tissue can obtain the compensatory blood supply of other blood vessels, break away from the dependence to internal carotid, then cut off internal carotid again just not
Cerebral infarction can be caused, is created conditions for disease treatment.It is provided for resisting the stretching force of electroactive polymer material in slide rail
Spring, when vascular occlusion is excessive, too fast, voltage is removed, release the compressing of electroactive polymer material roll shaft, roll shaft energy
It is enough to reset, so as to release the compressing to blood vessel, strengthen the security of the present invention.By vitro program controlled, actuating can be freely adjusted
The contraction and extension of device, can be through vitro program controlled control locking velocity or retraction actuator if locking is too fast to cause malaise symptoms
Vascular compression is released, or is cut off the electricity supply, the automatic traction rollers of spring is resetted, plays the effect for ensureing latching process safety.
In the description of the invention, it is to be understood that term " on ", " under ", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " top ", " bottom " " interior ", " outer ", " circumference " or position relationship are based on side shown in the drawings
Position or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or the device or member that imply meaning
Part must have specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
1. a kind of controllable vascular occlusion device of implanted, it is characterised in that including housing（1）, actuator and control module（3）,
The housing（1）It is interior have run through housing（1）Passage（11）, the housing（1）Can free closure or openness so that blood vessel
（4）It can be included into or remove passage；The control module（3）Electric energy is provided for control signal and to actuator；The actuating
Device device is in housing（1）Interior, the actuator includes slide rail（21）, can be along the slide rail（21）Mobile roll shaft（22）And dress
Put in the slide rail（21）Interior electroactive polymer material（23）, after the actuator is powered, the electroactive polymer material
Material（23）Deform upon and along the slide rail（21）Stretching, extension, so as to oppress the roll shaft（22）Along the slide rail（21）It is mobile, institute
State roll shaft（22）Blood vessel in moving process to being included into the passage（4）Extruding is produced, so that blood vessel（4）Gradually close
Lock.
2. the controllable vascular occlusion device of implanted according to claim 1, it is characterised in that the housing（1）It is upper with it is logical
Road（11）Corresponding position is provided with opening and the door for being turned on and off opening（12）.
3. the controllable vascular occlusion device of implanted according to claim 1, it is characterised in that the electroactive polymer material
Material（23）Electroactive polymer film for multilayer folding or the electroactive polymer film for being rolled into cylindrical shape.
4. the controllable vascular occlusion device of implanted according to claim 1, it is characterised in that the electroactive polymer material
Material（23）For electroactive polymer fibre bundle.
5. the controllable vascular occlusion device of implanted according to claim 1, it is characterised in that there is returning apparatus in the slide rail
Spring（24）, the spring（24）For resisting electroactive polymer material（23）Stretching force, in electroactive polymer material
（23）Roll shaft（22）Compressing release after, roll shaft can be made（22）Reset, release to blood vessel（4）Compressing.
6. the controllable vascular occlusion device of implanted according to claim 5, it is characterised in that the spring（24）With it is described
Electroactive polymer material（23）Device is in roll shaft respectively（22）The slide rail of both sides（21）It is interior.
7. the controllable vascular occlusion device of implanted according to claim 5, it is characterised in that the spring（24）With it is described
Electroactive polymer material（23）Device is in roll shaft（22）The slide rail of homonymy（21）It is interior, the electroactive polymer material（23）For
The electroactive polymer film of cylindrical shape is rolled into, the electroactive polymer film wraps up the spring（24）Or the electricity is lived
Property polymer thin film device is in the spring（24）It is interior.
8. the controllable vascular occlusion device of implanted according to claim 5, it is characterised in that the spring（24）With it is described
Electroactive polymer material（23）Device is in roll shaft（22）The slide rail of homonymy（21）It is interior, the electroactive polymer material（23）For
Electroactive polymer fibre bundle, the electroactive polymer fiber bundle device is in the spring（24）It is interior.
9. the controllable vascular occlusion device of implanted according to claim 1, it is characterised in that the control module（3）Bag
Include control chip, voltage transformation module and battery pack, the control module（3）Radio receiving unit is additionally provided with, for receiving
The signal being wirelessly transferred with identification.
10. the controllable vascular occlusion device of implanted according to claim 1, it is characterised in that the housing（1）On also set
Fixed structure is equipped with, the fixed structure is annular projection（25）, annular groove（26）Or tunnel（27）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710884254.8A CN107714127A (en) | 2017-09-26 | 2017-09-26 | The controllable vascular occlusion device of implanted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710884254.8A CN107714127A (en) | 2017-09-26 | 2017-09-26 | The controllable vascular occlusion device of implanted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107714127A true CN107714127A (en) | 2018-02-23 |
Family
ID=61208125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710884254.8A Pending CN107714127A (en) | 2017-09-26 | 2017-09-26 | The controllable vascular occlusion device of implanted |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107714127A (en) |
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| CN116637305A (en) * | 2023-06-20 | 2023-08-25 | 吉林大学 | Magnetic pulse control clamping device and system |
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