CN108403178A - One kind being used for endovascular medical treatment device - Google Patents
One kind being used for endovascular medical treatment device Download PDFInfo
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- CN108403178A CN108403178A CN201810149489.7A CN201810149489A CN108403178A CN 108403178 A CN108403178 A CN 108403178A CN 201810149489 A CN201810149489 A CN 201810149489A CN 108403178 A CN108403178 A CN 108403178A
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- Prior art keywords
- interlude
- segment
- section
- capsule
- outer tube
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Classifications
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- 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
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
-
- 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
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12136—Balloons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
-
- A61M1/0023—
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/84—Drainage tubes; Aspiration tips
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1011—Multiple balloon catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22051—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22079—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with suction of debris
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1011—Multiple balloon catheters
- A61M2025/1013—Multiple balloon catheters with concentrically mounted balloons, e.g. being independently inflatable
Abstract
It is used for endovascular medical treatment device, including slender member and expandable capsule the present invention provides one kind, the slender member includes distal ports for carrying the capsule and is adjacent to the top section of the distal ports, and the outer diameter of the top section is not more than 6Fr.It is provided by the present invention to be realized to the closure compared with thin vessels for endovascular medical treatment device.
Description
Technical field
The present invention relates to one kind being used for endovascular medical treatment device, more particularly to one kind can be realized effectively in a low voltage state
The device that blood vessel blocks, can be used for temporary plugging vascular flow, absorbs vascular thrombosis by negative pressure or auxiliary all kinds of takes bolt instrument
It completes blood vessel machinery and takes bolt, or as other interposing catheters or the accessory channel etc. of instrument, belong to the field of medical instrument technology.
Background technology
The intravascular intervention diagnosing and treating therapeutic modality minimally invasive as one, recently as iconography equipment into
The introducing improvement of step, novel intervention equipment is quickly developed, and blood vessel intervention doctor, which can be handled, to become increasingly complex
The case of lesion, clinical application is more and more, and the disease being related to is also more and more extensive.However, one of facing difficulty at present
To solve the problems, such as to be, conduit is operated in the blood vessels or generates clast bolt when conveying the sacculus, holder or plugging device of interventional treatment
Subflow causes distal vessels to occlude to blood vessel distal end.
The interventional technique of the cranial vascular disease minimally-invasive treatment mode representative as one, recently as iconography
The progress of equipment, the introducing of novel intervention equipment are quickly developed, and cranial nerve intervention doctor can have been handled increasingly
Complicated lesion, the case of clinical application is more and more, and the disease being related to is also more and more extensive.
The machinery of bolt instrument is taken to take bolt or led using sacculus by balloon guide catheter conveying intervention in the cerebrovascular
The therapy that pipe completes to inhale bolt has many advantages, such as that bleeding is few, wound is small, few intercurrent disease, safe and reliable, post-operative recovery is fast, becomes
The bright spot of acute ischemic cerebral apoplexy treatment, there is revascularization rate more higher than vein or Arterial thrombolysis and broader treatment time
Window.
《Acute ischemic cerebral apoplexy China Consensus of experts 2017 editions》Middle report, take bolt access select key be whether
Use balloon guide catheter and centre/suction catheter；NASA registration researchs are included in 138 of 24 centers and are led using sacculus altogether
The patient of guiding tube, compared with unused balloon guide catheter person, user's recanalization rate is higher, distal embolization rate and dystopy
Thrombosis rate indifference, clinical prognosis desirable rate is high within 3 months；Multinomial logistic regression shows using balloon guide catheter to be to face
The independent influencing factor of bed prognosis bona.The Solumbra technologies assisted using intermediate conductor can significantly improve MCA block cabinets
Tool takes the success rate of bolt, reduces distal embolization rate and dystopy thrombosis rate.Experiment in vitro further confirms, during holder takes bolt to combine
Between/suction catheter suction can reduce hard and crisp thromboembolism distal vessels event, joint balloon guide catheter can significantly drop
The distal embolization event of low fresh red thrombus, therefore balloon guide catheter and centre/suction catheter possibility are used in combination in embolectomy
With clinical meaning.
Balloon guide catheter occupation mode is：By the interventional procedure of standard, percutaneous puncture is placed in arterial sheath, and auxiliary takes bolt device
Tool reaches vascular thrombosis proximal end, so that it is attached at vascular wall by balloon inflation, temporary interruption blood flow forms partial sealing；
Under external negative pressure cooperation, bolt instrument and thrombus will be taken to adsorb the inner cavity into conduit.Then the sacculus for shrinking balloon guide catheter, is returned
Balloon guide catheter is removed, takes thrombus out of human body to achieve the purpose that blood flow is rebuild.
Balloon guide catheter auxiliary intervention apparatus completes the mechanical critical issue for taking bolt or individually inhaling bolt：1, sacculus compared with
Under small filling pressure, it can realize that validity blocks, reduction irritates cranial nerve vascular wall；2, and sacculus position has
Developing mark, the position of sacculus can be accurately positioned in doctor in interventional procedure；3, conduit itself should have preferable flexibility,
Diseased region can be smoothly reached by full of twists and turns blood vessel.
Country's commercialized product is the Merci balloon guide catheters of Concentric Medical companies of U.S. production at present.
Its disadvantage is：1, balloon guide catheter is relatively large in diameter, it is difficult to smaller blood vessel is reached, it can only be with general guiding catheter or similar
Mate uses；2, sacculus and contacts blood point are excessive, more to vascular stimulation, easily cause the complication such as spasm.
Therefore, those skilled in the art, which is dedicated to developing, a kind of new is used for endovascular medical treatment device.
Invention content
In view of the drawbacks described above of the prior art, new endovascular medical treatment device, institute to be used for the present invention provides a kind of
Technical problems to be solved are the closure realized to compared with thin vessels.
To achieve the above object, the present invention provides one kind be used for endovascular medical treatment device, including slender member and
Expandable capsule, the slender member include distal ports for carrying the capsule and are adjacent to the top of the distal ports
The outer diameter of section, the top section is not more than 6Fr.
Preferably, the length of the top section is not less than 3mm.
Preferably, the length of the top section is 3mm~30cm.
Preferably, described includes balloon guide catheter for endovascular medical treatment device.
Preferably, described further includes handle for endovascular medical treatment device, the slender member further include for
The proximal segment of handle connection and the interlude between the proximal segment and distal ports, which is characterized in that the interlude
Including at least first segment, second segment and third section, the first segment, second segment, third section proximally to being distally arranged in order,
The hardness of the first segment, second segment and third section is different from.
Preferably, the first segment, second segment and third section abut successively.
Preferably, the hardness of the first segment, second segment and third section is sequentially reduced.
Preferably, the interlude further includes the proximal end linkage section for being connect with proximal segment, is adjacent to the first segment
Proximal end, the hardness of the proximal end linkage section is more than the hardness of the first segment.
Preferably, the interlude further includes the distal end linkage section for being connect with distal ports, is adjacent to the third section
Distal end, the hardness of the distal end linkage section is less than the hardness of the third section.
Preferably, the interlude includes interlude outer tube and interlude inner tube；The interlude outer tube includes interlude
Outer tube first segment, interlude outer tube second segment, intermediate outer tube third section；The interlude inner tube includes interlude inner tube first
Section, interlude inner tube second segment, intermediate inner tube third section；The interlude outer tube first segment and the interlude inner tube first segment
The first segment of the interlude is constituted, the interlude outer tube second segment and the interlude inner tube second segment constitute the centre
The second segment of section, the interlude outer tube third section and the interlude inner tube first segment constitute the third section of the interlude.
Preferably, during the interlude inner tube first segment, interlude inner tube second segment, intermediate inner tube third section include at least
Between section inner tube first layer, the interlude inner tube second layer, interlude inner tube third layer, wherein the interlude inner tube first layer and
The material of interlude inner tube third layer is plastics, and the material of the interlude inner tube second layer is wire braid.
Preferably, first layer, the intermediate inner tube of the first layer of the interlude inner tube first segment, interlude inner tube second segment
The hardness of the first layer of third section is sequentially reduced and/or the second layer of the interlude inner tube first segment, interlude inner tube second
The second layer of section, the hardness of the second layer of intermediate inner tube third section are sequentially reduced.
Preferably, the interlude outer tube first segment, interlude outer tube second segment, intermediate outer tube third section material be modeling
Material.
Preferably, during the interlude outer tube first segment, interlude outer tube second segment, intermediate outer tube third section include at least
Between section outer tube first layer, the interlude outer tube second layer, interlude outer tube third layer, wherein the interlude inner tube first layer and
The material of interlude inner tube third layer is plastics, and the material of the interlude inner tube second layer is wire braid.
Preferably, the capsule at least has the first shape in contraction state and the second shape in swelling state,
Described is configured to for endovascular medical treatment device, and when the capsule is in the second shape, the capsule, which at least has, to be used for
It is close to and blocks the first closure outer surface of blood vessel with vascular wall and second for being close to and blocking blood vessel with vascular wall blocks
Outer surface；The first closure outer surface and the second closure outer surface are separated from each other in position.
Preferably, when the capsule is in the second shape, the shape of the capsule is Pear-Shaped.
Preferably, the capsule includes the first capsule portion and the second capsule portion, and first closure outer surface is located at first capsule
Portion, second closure outer surface are located at second capsule portion；Described is configured to for endovascular medical treatment device, works as institute
When stating capsule and being in the second shape, between first capsule portion and the outer wall of the slender member there is third chamber first to divide chamber, institute
Stating between the second capsule portion and the outer wall of the slender member, there is third chamber second to divide chamber；There are one the slender member tools or more
A hole, the third chamber first divide chamber to be connected to second chamber by the hole, and the third chamber second divides chamber to pass through in addition
The hole be connected to second chamber；The third chamber first divides chamber and third chamber second to divide chamber mutual indepedent.
Preferably, described further includes the marker that can be shown under ray for endovascular medical treatment device, it is close or
It is close to the proximal end and/or distal end of the capsule.
Preferably, described further includes the marker that can be shown under ray, the mark for endovascular medical treatment device
Note object is the developing material in the cyst wall of the embedded capsule.
Preferably, described further includes the marker that can be shown under ray for endovascular medical treatment device, is located at institute
State the distal end of top section.
The present invention advantageous effects be：1, balloon guide catheter integrally has smaller outer diameter, can directly reach
Smaller blood vessel；It need not be used with other guiding catheters or mate；Reduce surgical procedure and operation cost；2, sacculus is being led
There is a certain distance on top of the position of pipe from conduit；When operation, sacculus still expands at thicker blood vessel, avoids smaller
Vascular dilation and caused by complication risk.
The technique effect of the design of the present invention, concrete structure and generation is described further below with reference to attached drawing, with
It is fully understood from the purpose of the present invention, feature and effect.
Description of the drawings
Fig. 1 is the knot of the first preferred embodiment provided by the present invention for endovascular medical treatment device
Structure section schematic diagram.
Fig. 2 is the structure vertical section signal of the part interlude of the conduit shown in FIG. 1 for endovascular medical treatment device
Figure.
Fig. 3 is the structure vertical section signal of the complete interlude of the conduit shown in FIG. 1 for endovascular medical treatment device
Figure.
Fig. 4 is the feature cross-section schematic diagram of the interlude of the conduit shown in FIG. 1 for endovascular medical treatment device.
Fig. 5 is the structure vertical section of the distal ports and top section of the conduit shown in FIG. 1 for endovascular medical treatment device
Schematic diagram (capsule is in contraction state).
Fig. 6 is the structure vertical section of the distal ports and top section of the conduit shown in FIG. 1 for endovascular medical treatment device
Schematic diagram (capsule is in swelling state).
Fig. 7 is the structure vertical section of the distal ports and top section of the conduit shown in FIG. 1 for endovascular medical treatment device
Schematic diagram (being encapsulated stifled blood vessel of expansion).
Fig. 8 is that the proximal segment of the conduit shown in FIG. 1 for endovascular medical treatment device and the structure vertical section of handle show
It is intended to.
Fig. 9 is in second of preferred embodiment provided by the present invention for endovascular medical treatment device
Between section structure vertical section schematic diagram.
Figure 10 is second of preferred embodiment provided by the present invention for endovascular medical treatment device
The feature cross-section schematic diagram of interlude.
Figure 11 is the third preferred embodiment provided by the present invention for endovascular medical treatment device
Structure vertical section schematic diagram.
Figure 12 is the 4th kind of preferred specific embodiment provided by the present invention for endovascular medical treatment device
Structure vertical section schematic diagram.
Figure 13 is the 5th kind of preferred embodiment provided by the present invention for endovascular medical treatment device
Structure vertical section schematic diagram.
Specific implementation mode
Multiple preferred embodiments that the present invention is introduced below with reference to Figure of description, keep its technology contents more clear and just
In understanding.The present invention can be emerged from by many various forms of embodiments, and protection scope of the present invention not only limits
The embodiment that Yu Wenzhong is mentioned.
In the accompanying drawings, the identical component of structure is indicated with same numbers label, everywhere the similar component of structure or function with
Like numeral label indicates.The size and thickness of each component shown in the drawings are to be arbitrarily shown, and there is no limit by the present invention
The size and thickness of each component.In order to keep diagram apparent, some places suitably exaggerate the thickness of component in attached drawing.
The term in term as used herein " proximal end " or similar description direction should be understood as：Device or component
One end close to user's (or handle) or the target location of separate blood vessel to be treated；Term as used herein " distal end "
Or the term in similar description direction should be understood as：The separate user (or handle) of device or component or close to needing to locate
One end of the target location of the blood vessel of reason.Term as used herein " close end " should be understood as：It is leaned in device or component
Close or adjacent proximal ends a parts (being not required for certain adjacent proximal ends)；Term as used herein " distal portion " should be appreciated that
For：Close to or close to a part for distal end (being not required for centainly close to distal end) in device or component.
Term as used herein " balloon guide catheter " should be understood as：Including elongated guiding catheter, and remote
What end carried expandable capsule stretches into endoceliac device.The meaning of " guiding catheter " meaning in " balloon guide catheter "
Think of is, which can be transported to target location by other medical instruments (for example, removing instrument of thrombus) or reagent, that is,
Play the role of " guiding "；It should be noted that need not be by other medical instruments for directly removing obstruction, the device
It itself can also implement the operation (for example, by negative-pressure ward thrombus) of removal body cavity internal congestion.Therefore, " balloon guide catheter "
It is understood not to that the device of body cavity internal congestion must could be removed by other medical instruments.
Fig. 1-Fig. 6 shows that the first for endovascular medical treatment device provided by the present invention is preferably embodied
Mode.
As shown in figs 1 to 6, the device in the specific implementation mode is used for from intravascular removal thrombus, object and/or resistance
Plug property substance, a kind of most typical application are to remove thrombus.The device includes slender member 100, by the distal end of slender member 100
The handle 300 of the expandable capsule 200 that section carries and the proximal segment positioned at slender member.The device can in many ways into
Row operation, for executing various processing functions or other functions in the blood vessels.For example, the device can be carried out with the first pattern
Operation, makes the shape of the device minimize, consequently facilitating being imported to endovascular target location；The device can also be with second
Pattern is operated, for example, with will go removing thrombus instrument reach target thrombi, and by remove thrombus after instrument inspiration
Inner cavity；The device can also be operated with the third pattern, for example, removing blood vessel internal congestion, such as blood for directly suction
Bolt；The device can also be operated with the 4th kind of pattern, for example, balloon expandable Basilar artery blood flow, and carry out angiography.
The generally elongated shape of slender member 100, including proximal segment 110, interlude 120, distal ports 130, top section 140.
Interlude 120, distal ports 130 and top section 140 be sized to import it is intravascular, proximal segment 110, interlude 120,
Distal ports 130, top section 140 have the first interconnected chamber 510 extended along its axis.First chamber 510 is for directly inhaling
It takes and removes blood vessel internal congestion, such as thrombus, or target site is sent to the instrument that will remove obstruction, and after obstruction being removed
Instrument sucks, or passes through channel for other instruments.
As shown in Fig. 2, interlude 120 includes the interlude outer tube 121 extended along same axis and interlude inner tube 122,
First chamber 510 is the inner cavity of interlude inner tube 122.Have along interlude between interlude outer tube 121 and interlude inner tube 122
The second chamber 520 that 120 axis extends.Device in the specific implementation mode is mainly used for removing the thrombus of intracranial vessel, because
This, the length of interlude 120 can be 30 centimetres -160 centimetres, and the outer diameter of interlude outer tube 121 can be 1.5 millimeter of -4.0 milli
Rice (is preferably no greater than 2mm), and the diameter of the first chamber 510 can be 0.8 millimeter -3.5 millimeters.In view of 121 He of interlude outer tube
The space of the necessary thickness of interlude inner tube 122 and the second enough chamber 520, internal diameter (i.e. the second chamber of interlude outer tube 121
520 outer diameter) can be 1.45-3.95 millimeters, the outer diameter (i.e. the internal diameter of the second chamber 520) of interlude inner tube 122 can be
1.43-3.93 millimeter.
The main function of interlude 120 is the target location that distal ports 130 and top section 140 are delivered to blood vessel, and
The second chamber 520 is provided to transmit the pressure for making capsule 200 expand, therefore the configuration of interlude 120 mainly considers its mechanical property.
As shown in figure 3, the interlude of the slender member 100 for endovascular medical treatment device in the specific implementation mode
Outer tube 121 and interlude inner tube 122 are all divided into five sections.Interlude outer tube 121 divides proximally to extend to distal end and abut successively
's：Interlude proximal outer tube linkage section 1214, interlude outer tube first segment 1211, interlude outer tube second segment 1212, centre are outer
Pipe third section 1213, interlude distal outer tube linkage section 1215.Wherein, interlude proximal outer tube linkage section 1214 and proximal segment
110 outer tube connection, interlude distal outer tube linkage section 1215 are connect with the outer tube of distal ports 130.Interlude inner tube 122, which is divided, is
Proximally to distal end extend and successively abut：Interlude inner tube proximal end linkage section 1224, interlude inner tube first segment 1221, in
Between section inner tube second segment 1222, intermediate inner tube third section 1223, interlude inner tube distal end linkage section 1225.Wherein, in interlude
Pipe proximal end linkage section 1224 is connect with the inner tube of proximal segment 110, and interlude inner tube distal end linkage section 1225 is interior with distal ports 130
Pipe connects.
In this specific embodiment, interlude proximal outer tube linkage section 1214 and interlude inner tube proximal end linkage section 1224
Length it is consistent, constitute the proximal end linkage section of entire interlude 120；Interlude outer tube first segment 1211 and interlude inner tube
One section 1221 of length is consistent, constitutes the first segment of entire interlude 120；In interlude outer tube second segment 1212 and interlude
The length of pipe second segment 1222 is consistent, constitutes the second segment of entire interlude 120；In intermediate outer tube third section 1213 and centre
The length of pipe third section 1223 is consistent, constitutes the third section of entire interlude 120；1215 He of interlude distal outer tube linkage section
The length of interlude inner tube distal end linkage section 1225 is consistent, constitutes the distal end linkage section of entire interlude 120.Entire interlude
120 proximal end linkage section, first segment, second segment, third section, the hardness of distal end linkage section are sequentially reduced.Wherein, second segment,
Three sections of major parts for being to provide desired compliance, typically for the application for typically removing removing thrombus, second segment and third
The length of section is respectively about 40-60mm, it is further preferred that the length of second segment and third section is respectively 48-52mm.Proximal end connects
It connects section and first segment is to provide the desired major part for turning round control property, typically for the application for typically removing removing thrombus, proximal end
The length of linkage section is about 80-120mm, it is further preferred that the length of proximal end linkage section is about 90-110mm；First segment
Length configures as needed.
The inventors of the present application found that in the device of existing similar balloon guide catheter, the mechanical property of interlude
Ideal effect is often not achieved, compliance is poor, poor by full of twists and turns vessel patency, is brought greatly to operation
It is inconvenient.If with single material be made interlude outer tube and inner tube or be difficult to realize desired compliance (be convenient for
Predetermined position is reached by curved blood vessel) and property (adjustment direction when person easy to operation uses) is controlled in torsion or material expensive arrives
It can not popularize.In this specific embodiment, present inventor creatively proposes a kind of new solution, that is, uses
Material of the composite layer including braided fabric as interlude inner tube 122.
Fig. 4 shows the cross section of interlude inner tube 122, interlude inner tube proximal end linkage section 1224, interlude inner tube
One section 1221, interlude inner tube second segment 1222, intermediate inner tube third section 1223, interlude inner tube distal end linkage section 1225 all adopt
With structure shown in Fig. 4.As shown in figure 4, interlude inner tube 122 is divided into three layers from outside to inside, respectively：Interlude inner tube first
Layer 1227, the interlude inner tube second layer 1228, interlude inner tube third layer 1229, wherein 1227 He of interlude inner tube first layer
The material of interlude inner tube third layer 1229 is plastics, and the material of the interlude inner tube second layer 1228 is wire braid.
In this specific embodiment, the weaving manner of wire fabric used by the interlude inner tube second layer 1228
For netted braiding, (in general, if other parameters are identical, netted braided fabric is harder than spring-like braided fabric with spring-like braided fabric；
Spring-like braided fabric has better flexibility, is conducive to curved.And for identical weaving manner, braided wires size is bigger, compiles
Fabric is then harder；Netted count is bigger, then braided fabric is harder, i.e., mesh is smaller harder, that is, the numerical value of ppi is bigger,
Braided fabric is harder；For spring-like braided fabric, the distance of adjacent filaments is closer, and braided fabric is harder), wire is (for example, stainless steel
Silk) braided fabric after braiding can provide desired basic hardness as needed.In general, for desired torsion control property
And compliance, the hardness of interlude inner tube proximal end linkage section 1224 is relatively large, and in interlude inner tube second segment 1222, centre
Pipe third section 1223, the hardness of interlude inner tube distal end linkage section 1225 are relatively small, in order to realize desired hardness gradually
The purpose of change, can be at least there are three types of mode.First way is the gradual change of hardness to be realized in the second layer, using different thicknesses
Wire or using the wire of unlike material or using different netted counts or use different weaving manners
(for example, using netted weaving manner in proximal end, spring-like weaving manner is used in distal end), can realize the mesh of hardness gradient
's；The second way is the gradual change of hardness to be realized in first layer, for example, using the different plastics of hardness；The third mode is,
The combination of first way and the second way, for example, the metal mesh shaped braided fabric that the second layer uses hardness different, meanwhile,
First layer is using the different plastics of hardness.Present inventor is intermediate it was unexpectedly observed that a preferred embodiment is
The first layer of section inner tube proximal end linkage section 1224 uses nylon, the first layer of interlude inner tube first segment 1221 to use
Pebax7233, the first layer of interlude inner tube second segment 1222 use Pebax5533, and the of interlude inner tube third section 1223
One layer uses Pebax4033, the first layer of interlude inner tube distal end linkage section 1225 to use Pebax2533, such configuration
Ideal torsion control and compliance can be obtained, meanwhile, first layer has the function of support and anti-folding.Interlude inner tube
Polytetrafluoroethylene (PTFE) (PTFE) may be used in three layer 1229 of material, reduces the frictional force of inner wall in this way, enables other instrument more
Small resistance passes through.A kind of preferred embodiment is that the material of interlude inner tube third layer 1229 uses PTFE
WT0.025, i.e. wall thickness are the PTFE of 0.025mm.
In this specific embodiment, interlude proximal outer tube linkage section 1214, interlude outer tube first segment 1211, centre
Section outer tube second segment 1212, intermediate outer tube third section 1213, the material of interlude distal outer tube linkage section 1215 all use plastics,
For example, using Pebax.The main function of interlude outer tube is support and anti-folding, in this way, interlude proximal outer tube linkage section
1214, interlude outer tube first segment 1211, interlude outer tube second segment 1212, intermediate outer tube third section 1213, interlude outer tube
The identical Pebax of hardness may be used in distal end linkage section 1215.As a preferred solution, interlude proximal outer tube linkage section
1214, interlude outer tube first segment 1211, interlude outer tube second segment 1212, intermediate outer tube third section 1213, interlude outer tube
The different Pebax of hardness may be used in distal end linkage section 1215, further to strengthen the performance of the hardness gradient of interlude.This Shen
Please inventor it was unexpectedly observed that a preferred embodiment is, interlude proximal outer tube linkage section 1214 uses nylon,
Interlude outer tube first segment 1211 uses Pebax7233, interlude outer tube second segment 1212 to use Pebax5533, intermediate outer tube
Third section 1213 uses Pebax4033, interlude distal outer tube linkage section 1215 to use Pebax2533, such configuration can be with
Ideal torsion control and compliance are obtained, meanwhile, ideal support and anti-folding are provided.
As shown in figure 5, distal ports 130 include distal ports outer tube 131 and distal ports inner tube 132, the first chamber 510 is distal ports
The inner cavity of inner tube 132, that is to say, that the first chamber 510 extends to distal ports 130 along its axis from interlude 120.Distal ports outer tube
There is the second chamber 520 that the axis of distally section 130 extends, that is to say, that the second chamber 520 between 131 and distal ports inner tube 132
Along its axis distal ports 130 are extended to from interlude 120.Expandable capsule 200 is located at the outside of distal ports outer tube 131.As
The outer diameter of a kind of preferred mode, distal ports outer tube 131 can be suitably less than the outer diameter of interlude outer tube 121, in this way, working as capsule
200 when shrinking, and the outer diameter of the outer diameter in the capsule portion of device and entire endovascular part is the same or smaller, convenient for the stream of blood
It moves in the blood vessels logical and device intravascular part.Distal ports outer tube 131 and distal ports inner tube 132 may be used and interlude
1225 identical material of distal outer tube linkage section 1215 and interlude inner tube distal end linkage section, for example, outside directly as interlude
The extended segment of pipe distal end linkage section 1215 and interlude inner tube distal end linkage section 1225；Distal ports outer tube 131 and distal ports inner tube
132 can also use the material with interlude distal outer tube linkage section 1215 and interlude inner tube distal end linkage section 1225, for example,
Compared to interlude distal outer tube linkage section 1215 and interlude inner tube distal end linkage section 1225, distal ports outer tube 131 and distal ports
Inner tube 132 uses more rigid material.These are also all technologies known in the art, and this will not be detailed here.
Fig. 5-Fig. 7 shows the distal ports 130 and capsule 200 of the slender member 100 in the specific implementation mode.In figure 3,
Capsule 200 is in the first shape of contraction state；In Fig. 4, capsule 200 is in the second shape of swelling state；In Figure 5, capsule 200
The second shape in swelling state, and block blood vessel.
As shown in Figure 5 and Figure 6, capsule 200 includes proximal end interconnecting piece 210, distal connection 220 and inflatable portion 230.Proximal end
The effect of interconnecting piece 210 and distal connection 220 is exactly to be connected with distal ports 130 and/or top section 140 so that third chamber 530
Relative to the outer closures of capsule 200, so that inflatable portion 230 is expanded under the effect of the pressure.The proximal end interconnecting piece of capsule 200
210 and the connection type of distal connection 220 and distal ports 130 and/or top section 140 can there are many, for example, can be by viscous
Mixture bonding, interference fit, laser welding, sound wave welding, melting, closely noose, by other connectors (such as lock ring,
Wire or high score sub-line bind) it is closely bonded or/and the modes such as adhesive bonding is coordinated to be attached.
Capsule 200 by medial surface pressure when it is inflatable, that is to say, that capsule 200 at least have that there are two types of shapes, that is, is in receipts
The first shape (Fig. 5) of contracting state and the second shape (Fig. 6 and Fig. 7) in swelling state.When capsule 200 is in first shape
When, slender member 100 and capsule 200 are suitble to move in the blood vessels as a whole；When capsule 200 is in the second shape, capsule 200 plays
Block the effect of blood vessel.
When capsule 200 is in swelling state, inflatable portion 230 is with having third chamber 530 between distal ports outer tube 131.The
It is connected to by one or more holes 133 on distal ports outer tube 131 between three chambers 530 and the second chamber 520 so that come from handle
300 pressure is transmitted to bulge 230 between distal ports outer tube 131 by the second chamber 520 so that capsule 200 carry out it is swollen
It is swollen.The pressure that capsule 200 is expanded is allow to be hydraulic pressure or air pressure, preferably hydraulic pressure (such as developer or physiological saline).
Capsule 200 can be made up of single tubular material of molding, blowing or other means.The proximal end interconnecting piece 210 of capsule 200 and distal end
Interconnecting piece 220 can be sufficiently thick and/or rigid sufficiently strong, to provide enough sealing functions；And inflatable portion 230 can compare
Proximal end interconnecting piece 210 and distal connection 220 are made thinner, shape when in order to provide desired expansion.Alternatively, capsule 200
Proximal end interconnecting piece 210, distal connection 220 and inflatable portion 230 or same thickness also may be used in this case
To provide the shape of desired expansion.
Capsule 200 can be made of elastic material, such as compliance or semi-compliant capsule.Compliance or semi-compliant capsule can be with
It is launched into sizes and/or shape according to the amount of the fluid in third chamber 530 and/or pressure.Capsule 200 can also be by basic
Inelastic material is made, for example, non-compliance capsule, unfolded to predetermined size when inflated, it is unrelated with pressure (to work as addition
Minimum volume and/or pressure are come after reaching predetermined size).One benefit of non-compliance capsule is, even if using relatively high pressure
Power, capsule 200 expand when be not more than predetermined size, just not will produce in this way it is to blood vessel it is not expected that stronger pressure
Compel.One benefit of compliance capsule is that, when the pressure for making capsule 200 expand is released, capsule 200, which may be collapsed to, is close to distal ports
The outer wall of outer tube 131 so that the outer diameter in the capsule portion of whole device is as small as possible, convenient for the blood vessel of the circulation and device of blood
Inside points move in the blood vessels.The preferred compliance capsule of the specific implementation mode, such as be made of the materials such as silica gel, PU, TPU.
As shown in Figure 6 and Figure 7, in this specific embodiment, when the inflatable portion 230 of capsule 200 is in swelling state,
Capsule 200 is fitted closely with blood vessel 400, to block blood vessel.
In this specific embodiment, which further includes marker 240.The effect of marker 240 be ray (such as
X-ray) under show that the preferable or more stable metal or metal alloy of biocompatibility, example can be selected in the position of capsule 200, material
Such as platinum group metal (such as platinumiridio), gold are addition developing material (such as barium salt (BaSO4), bismuth salt (BiOCl)
Deng) high molecular material.Alternatively, can also capsule 200 material may be addition developing material (such as barium salt (BaSO4), bismuth
Salt (BiOCl etc.) etc.) high molecular material.
In this specific embodiment, as shown in Figures 6 and 7, marker 240 is ring-type, is socketed on distal ports outer tube 131
Outer wall, also, marker 240 is between capsule 200 and distal ports outer tube 131, that is to say, that when capsule 200 is in expansion shape body
When, marker 240 is located at the inside of third chamber 530.It will be apparent that the deformation as the specific implementation mode, is socketed on distal ports
The cricoid marker 240 of the outer wall of outer tube 131 can also be located at the outside of third chamber 530, for example, the position other than capsule 200
It sets.Alternatively, marker 240 can also directly be socketed on capsule 200 proximal end interconnecting piece 210 and/or distal connection 220 it is outer
Face, in this case, marker 240 are also used as lock ring, help between capsule 200 and the outer wall of distal ports outer tube 131
Closed connection.Either it is located at the outside of third chamber 530, or positioned at the inside of third chamber 530, marker 240 is preferably both
Both ends that are close or being close to capsule 200, that is to say, that close or be close to proximal end interconnecting piece 210 and distal connection 220.In the tool
In body embodiment, there are two ring-shaped mark objects 240 altogether, are close to proximal end interconnecting piece 210 and distal connection 220 respectively.This
The configuration of sample can most clearly show the position of capsule 200 under ray.It will be apparent that the deformation as the specific implementation mode,
Ring-shaped mark object 240 can also be arranged more, for example, corresponding position configures ring at its maximum outside diameter when capsule 200 expands
Shape marker.
As shown in figure 5, in this specific embodiment, top section 140 has the first chamber 510, that is to say, that the first chamber
510 extend to top section 140 along its axis from distal ports 130.Distal end namely the first chamber of first chamber 510 of top section 140
510 openings towards internal tube, thrombus and/or other instruments for removing thrombus just pass in and out the first chamber 510 from the opening.
The top for functioning as slender member 100 of top section 140, proximal end and distal ports outer tube 131 and distal ports inner tube 132
Distal end connection.In this specific embodiment, top section 140 includes two parts, and first part is top section top end part 141,
Another part is top section proximal end interconnecting piece 142.Wherein, top section proximal end interconnecting piece 142 can be as the extension of distal ports 130
Part, that is to say, that top section proximal end interconnecting piece 142 and distal ports 130 can processing and fabricatings as a whole.In this way, top
End section proximal end interconnecting piece 142 is also classified into outer tube and inner tube, it may have the second chamber 520.The effect of top section top end part 141 is exactly to connect
Connect the outer tube and inner tube of top section proximal end interconnecting piece 142, and the second chamber 520 of closing.The material of top section proximal end interconnecting piece 142
Preferred hardness is smaller but has the material of certain elasticity；Thus when slender member is advanced to the bending section in blood vessel to blood vessel
There is better protection；Specific material such as Pebax2533, Pebax3533, TPU3585A and TPU3595A etc..It is grasped in order to allow
Author can judge the position of the device in the blood vessels, top section proximal end interconnecting piece 142 can also setting flag object, such as front
The preferable or more stable metal or metal alloy of described biocompatibility, such as platinum group metal (such as platinumiridio), gold
Deng or top end part 140 material be add developing material (such as barium salt (BaSO4), bismuth salt (BiOCl etc.) etc.) macromolecule
Material.
In this specific embodiment, the outer diameter of top section no more than 6Fr (Fr is the unit of conduit, 3F=3mm perimeters,
Again because of perimeter=3.14 × diameter, so diameter 1Fr ≈ 0.33mm), the length of top section is 3mm~30cm.It is arranged in this way
Benefit is：Top section has smaller outer diameter, can directly reach smaller blood vessel, it is not necessary to match with other guiding catheters or accessory
It closes and uses, reduce surgical procedure and operation cost；In addition, there is a certain distance on top of the capsule from conduit, when operation, capsule still exists
At thicker blood vessel expand, avoid smaller vascular dilation and caused by complication risk.
As shown in figure 8, in this specific embodiment, proximal segment 110 includes proximal segment outer tube 111 and proximal segment inner tube
112, the first chamber 510 is the inner cavity of proximal segment inner tube 112, that is to say, that along its axis, proximally section 110 extends the first chamber 510
To interlude 120.There is the second chamber that the axis along proximal segment 110 extends between proximal segment outer tube 111 and proximal segment inner tube 112
520, that is to say, that along its axis, proximally section 110 extends to interlude 120 to the second chamber 520.
The main function of proximal segment 110 is exactly to connect handle 300, and provide the first chamber 510 from handle 300 and the
The channel of two chambers 520.As shown in fig. 6, handle is used to holding and operating whole device, for example, by slender member 100 and capsule 200
It is pushed to endovascular target location.Handle at least has there are two mutually isolated chamber, a chamber and the first of slender member 100
Chamber 510 is connected to, for removing thrombus；Another chamber is connected to the second chamber 520 of slender member 100, is made for providing pressure
Capsule 200 expands and removal pressure makes capsule 200 shrink.In order to complete this function, handle 300 need by interface in addition
Device connection, for example, generating the device (such as syringe, full device, vacuum pump, be used for the first chamber 510) of negative pressure and carrying
For hydraulic pressure or the device of air pressure (such as syringe, full device etc. be used for the second chamber 520).The configuration of proximal segment 110 and handle 300
It is all technology known in the art, this will not be detailed here.
Can directly be stretched into from skin through puncture or notch for endovascular medical treatment device in the specific implementation mode
It is intravascular, alternatively, the device also using one or more other instruments enter it is intravascular, for example, guide sheath (leading by conduit and capsule
Draw and pass through inside sheath or guide sheath is passed through in the first intracavitary of conduit), (conduit and capsule pass through guide wire outside guide wire, lead
Draw silk and be located at the first intracavitary).The position that marker 240 is monitored under the irradiation of ray promotes injection after reaching target location
Device provides hydraulic pressure or air pressure makes capsule 200 expand and block blood vessel, and remove the operation of thrombus, for example, opening vacuum pump
Aspirate thrombi.After completing suction, pumpback syringe makes the liquid in the second chamber 520 or gas backstreaming, to make capsule 200 receive
Contracting.Finally by whole device from intravascular extraction.It in the process, can also be by 510 delivery of therapeutic agents of the first chamber to intravascular
Target location, alternatively, conveying for directly removal thrombus other instruments.
Fig. 9 and Figure 10 shows second of preferred specific reality provided by the present invention for endovascular medical treatment device
Apply mode.
Device in the specific implementation mode is identical as the capsule 200 of the first specific implementation mode and the structure of handle 300,
Primary difference is that the structure of slender member 100.
In this specific embodiment, slender member 100 equally also includes proximal segment 110, interlude 120, distal ports
130, top section 140.Proximal segment 110, interlude 120, distal ports 130 equally include inner and outer tubes, equally also have first
Chamber 510 and the second chamber 520.Interlude outer tube 121 and interlude inner tube 122 are equally all divided into five sections.Interlude outer tube 121, which divides, is
Proximally to distal end extend and successively abut：Interlude proximal outer tube linkage section 1214, interlude outer tube first segment 1211, in
Between section outer tube second segment 1212, intermediate outer tube third section 1213, interlude distal outer tube linkage section 1215.Interlude inner tube 122
Be divided into proximally to distal end extend and successively abut：Interlude inner tube proximal end linkage section 1224, interlude inner tube first segment
1221, interlude inner tube second segment 1222, intermediate inner tube third section 1223, interlude inner tube distal end linkage section 1225.
The structure of interlude inner tube 122 in the specific implementation mode is identical as the first specific implementation mode, different
It is the structure of interlude outer tube 121.
Figure 10 shows the cross section of the interlude outer tube 121 in the specific implementation mode, the connection of interlude proximal outer tube
Section 1214, interlude outer tube first segment 1211, interlude outer tube second segment 1212, intermediate outer tube third section 1213, outside interlude
Pipe distal end linkage section 1215 all uses structure shown in Fig. 10.As shown in Figure 10, interlude outer tube 121 is divided into three from outside to inside
Layer, respectively：Interlude outer tube first layer 1217, the interlude outer tube second layer 1218, interlude outer tube third layer 1219,
In, the material of interlude outer tube first layer 1217 and interlude outer tube third layer 1219 is plastics, the interlude outer tube second layer
1218 material is wire braid.
It is therefore, in this specific embodiment, intermediate because the main function of interlude outer tube is to provide support and anti-folding
The weaving manner of wire fabric used by the section outer tube second layer 1218 is non-mesh braiding, a kind of preferred embodiment
It is spring-like braiding, i.e. braided fabric is mainly made of spring-like metal silk (for example, stainless steel wire) crosslinking.Interlude outer tube first
The identical plastics of hardness, such as Pebax, the plastics that hardness can also be used different may be used in layer 1217.A kind of preferred implementation
Scheme is using the different plastics of hardness, and the first layer of interlude proximal outer tube linkage section 1214 uses nylon, interlude outer tube
The first layer of first segment 1211 uses Pebax7233, the first layer of interlude outer tube second segment 1212 to use Pebax5533, in
Between the first layer of section outer tube third section 1213 use Pebax4033, the first layer of interlude distal outer tube linkage section 1215 adopts
With Pebax2533, such configuration can further strengthen the performance of the hardness gradient of interlude.Interlude outer tube third layer
Polytetrafluoroethylene (PTFE) (PTFE) may be used in 1219 material, reduces the frictional force of inner wall in this way.A kind of preferred specific embodiment party
Case is that PTFE WT0.025 may be used in the material of interlude inner tube third layer 1219.
Figure 11 shows the third preferred specific embodiment party provided by the present invention for endovascular medical treatment device
Formula.
Device in the specific implementation mode and the slender member 100 of the first specific implementation mode and the knot of handle 300
Structure is identical, primary difference is that the structure of capsule 200.
In this specific embodiment, equally also there are two types of shapes for tool for capsule 200, that is, are in the first shape of contraction state
(not shown) and the second shape (Fig. 7) in swelling state.Similarly, when capsule 200 is in first shape, elongated structure
Part 100 and capsule 200 are suitble to move in the blood vessels as a whole；When capsule 200 is in the second shape, capsule 200 plays closure blood vessel
Effect.
It as shown in figure 11, in this specific embodiment, can when the inflatable portion 230 of capsule 200 is in swellable state
Bulge 230 has the position that blood vessel can be blocked at two.Because blocking the outer surface mainly by inflatable portion 230 and blood vessel
400 fit closely to realize, therefore, inflatable portion 200 has be close to and block blood vessel with vascular wall first to block appearance
Face 231 and for be close to vascular wall and block blood vessel second block outer surface 232, first block outer surface 231 and second
Block outer surface 232 be separated from each other in position, that is to say, that first block outer surface 231 and second block outer surface 232 with
There is the 4th chamber 540 between the blood vessel 400 being close to.The shape of capsule 200 generally Pear-Shaped shown in Figure 11.It is so-called
" Pear-Shaped " refers to be, from the appearance, there are two the parts of sphere or approximate spheres for the main body of capsule 200.The capsule of Pear-Shaped exists
It may be more prone to than other shapes in manufacture, it will be clear that according to the principle that the specific implementation mode provides, capsule 200 can also
For other shapes.For example, first block outer surface 231 and second block outer surface 232 closer to plane rather than spherical surface.
Relative to the first specific implementation mode, the device in the specific implementation mode utilizes mutually to be divided in position at two
The position opened blocks blood vessel, and benefit is to mitigate the compressing and stimulation to blood vessel, to reduce the generation of complication.
For example, one kind typically, needs to handle the internal diameter of the blood vessel of thrombus to be about 6mm.In existing skill
In art, capsule 200 only has position at one to block blood vessel, for example, coming from shape, there are one spheres for entire capsule 200.This
In the case of, in order to reach desired plugging effect, when capsule is in the second shape of expansion, the outer diameter of capsule would generally reach
The length of 7mm or so, capsule would generally reach 8mm or so, and the area for blocking face is usually 311mm2Left and right.
In this specific embodiment, blood vessel is blocked using position at two, than one at the efficiency that blocks of position improve
Very much, the outer diameter, width and area that closure face can be greatly reduced in this way, to greatly reduce the pressure to blood vessel
It forces to make peace stimulation.Present inventor it was unexpectedly observed that for be about typically 6mm vessel diameter, when capsule 200 be expanded into it is outer
When diameter is 7mm, if configuring the length of capsule 200 to 10-14mm can be realized ideal plugging effect.At this moment, it first blocks
The area that outer surface 231 and second blocks one in outer surface 232 is about 100~160mm2.Present inventor is into one
Step is found, for the blood vessel of internal diameter bigger, for example, when it is 9mm that capsule 200, which is expanded into outer diameter, if the length of capsule 200 configured
For 10-16mm, you can realize ideal plugging effect；When it is 10mm that capsule 200, which is expanded into outer diameter, if by the length of capsule 200
It is configured to 10-18mm, you can realize ideal plugging effect.In the prior art, a certain company of face vascular compression is individually blocked
Continuous position, it is larger to vascular stimulation；And multiple bag pressures compel the different location in blood vessel, reduce the continued stimulus to blood vessel, reduce
Blood vessel stress reaction, to reduce complication.
For compliance capsule, it is desirable to be expanded into desired Pear-Shaped, can configure capsule 200 makes the dilatancy at in-between position
It is poor, for example, the wall at intermediate position is thicker, alternatively, using the poor material of dilatancy, develop alternatively, being embedded at intermediate position
Material (such as barium salt (BaSO4), bismuth salt (BiOCl etc.) etc.) etc..
Figure 12 shows the 4th kind of preferred specific embodiment party provided by the present invention for endovascular medical treatment device
Formula.
Device in the specific implementation mode and the slender member 100 of the third specific implementation mode and the knot of handle 300
Structure is identical, primary difference is that the structure of capsule 200.
In this specific embodiment, capsule 200 equally also has the first closure for being close to and blocking blood vessel with vascular wall outer
Surface 231 and for be close to vascular wall and block blood vessel second block outer surface 232, in the first specific implementation mode
The shape and size that outer surface 232 is blocked in relation to the first closure outer surface 231 and second provided are also applied for the specific reality
Apply mode.
With the first specific implementation mode the difference is that the capsule 200 in the specific implementation mode divides for the first capsule portion 201
With the second capsule portion 202.Wherein, the first closure outer surface 231 is located at the first capsule portion 201, and second, which blocks outer surface 232, is located at second
Capsule portion 202.When the first capsule portion 201 is in swelling state, the first capsule portion 201 is with having third chamber between distal ports outer tube 131
First point of chamber 531；When the second capsule portion 202 is in swelling state, the second capsule portion 202 is with having the between distal ports outer tube 131
Three chambers second divide chamber 532.Third chamber first is divided to chamber 531 and third chamber second that chamber 532 is divided to be independent from each other two chambers, also
It says, third chamber first is divided chamber 531 and third chamber second that chamber 532 is divided closely to be isolated by the first capsule portion 201 and the second capsule portion 202
Two chambers.Third chamber first divides between chamber 531 and the second chamber 520 to be connected to by the hole on distal ports outer tube 131, third chamber second
Divide between chamber 532 and the second chamber 520 and be connected to also by the other hole on distal ports outer tube 131 so that comes from handle 300
Pressure is transmitted to bulge 230 between distal ports outer tube 131, so that the first capsule portion 201 and second by the second chamber 520
Capsule portion 202 is expanded.Therefore, referring to " third chamber first divides chamber and third chamber second to divide chamber mutual indepedent " mentioned here and
Be not be not connected between third chamber first divides chamber and third chamber second to divide chamber (they are connected to indirectly by the second chamber 520), and
It is for capsule 200 itself, third chamber first is divided to chamber and third chamber second that the wall of chamber tunica is divided to be divided into two independent chambers.Make
It equally can be hydraulic pressure or air pressure, preferably air pressure to obtain the pressure that the first capsule portion 201 and the second capsule portion 202 are expanded.
Capsule 200 is divided into a benefit in the first capsule portion 201 and the second capsule portion 202 is, manufacture is relatively easy.At the first
In specific embodiment, the generally Pear-Shaped of capsule 200, when capsule 200 is in contraction state, capsule 200 is tight as far as possible
It pastes the outer wall of distal ports outer tube and makes the outer diameter of capsule 200 as small as possible, to move in the blood vessels；When capsule 200 is in swollen
When swollen state, capsule 200 should be expanded into desired Pear-Shaped；It realizes this point, either uses elastic material or non-ballistic
Property material, cost of manufacture are generally relatively high.In this specific embodiment, capsule 200 is separated out 201 He of independent first capsule portion
Second capsule portion 202, in the expanded state, the first capsule portion 201 and the second capsule portion 202 only need to be expanded into almost spherical,
Realize that this point is easily more than the first specific implementation mode.During fabrication, the first capsule portion 201 and the second capsule portion 202 can
To be manufactured separately, it is then respectively connected to the outer wall of distal ports outer tube.Also it just says, the first capsule portion 201 and the second capsule portion
202 are respectively provided with respective proximal end interconnecting piece, distal connection and inflatable portion.In this case, the first capsule portion 201 and
Two capsule portions 202 can be considered as two independent capsules in fact.First capsule portion 201 and the second capsule portion 202 can also be manufactured into one
Body, and it is coupled together to the outer wall of distal ports outer tube.Also it just says, the first capsule portion 201 and the second capsule portion 202 are as a whole
With proximal end interconnecting piece, distal connection, middle interconnecting piece (the first capsule portion 201 and the second capsule portion 202 share), the first capsule portion
The bulge of bulge and the second capsule portion.First capsule portion 201 and the second capsule portion 202 and the connection of distal ports outer tube can also use
The mode that the first specific implementation mode is provided, for example, can be welded, be melted by adhesive bonding, interference fit, sound wave,
Closely noose, the modes such as be closely bonded by other connectors and be attached.
It is identical as the first specific implementation mode, the distal ports of the slender member 100 of the device in the specific implementation mode
130 also carry marker 240.Marker 240 is also ring-type, is socketed on the outer wall of distal ports outer tube 131.In the specific implementation
In mode, marker 240 is all located at the outside in capsule 200 (including the first capsule portion 201 and second capsule portion 202) there are three having altogether,
In two markers 240 be close to capsule 200 proximally and distally, another marker 240 is located at the first capsule portion 201 and the second capsule portion
202 centre position can clearly illustrate the position in the first capsule portion 201 and the second capsule portion 202 under ray in this way.
Figure 13 shows the 5th kind of preferred specific embodiment party provided by the present invention for endovascular medical treatment device
Formula.
In the specific implementation mode for the thin of endovascular medical treatment device and the third preferred embodiment
The structure of long component 100 and handle 300 is identical, primary difference is that the structure of marker 240 and position.
In this specific embodiment, marker 240 is developing material (such as barium salt (BaSO4), the bismuth salt of strip
(BiOCl etc.) etc.), it is embedded into inside the cyst wall of capsule 200.When capsule 200 expands, marker 240 and then expands together.It is such
Mark mode is obviously more advantageous to position and the swelling state that operator observes capsule 200.
It will be apparent that the device provided in above-mentioned 4th kind of specific implementation mode can also be deformed in this way, i.e.,
Developing material is embedded into inside the cyst wall of capsule 200, this will not be detailed here.
Claims (10)
1. one kind being used for endovascular medical treatment device, including slender member and expandable capsule, the slender member includes using
In the distal ports for carrying the capsule and the top for being adjacent to distal ports section, which is characterized in that the outer diameter of the top section
No more than 6Fr.
2. being used for endovascular medical treatment device as described in claim 1, which is characterized in that the length of the top section is not less than
3mm。
3. being used for endovascular medical treatment device as described in claim 1, which is characterized in that the length of the top section is 3mm
~30cm.
4. being used for endovascular medical treatment device as described in claim 1, which is characterized in that described is used for endovascular medical treatment
Device includes balloon guide catheter.
5. being used for endovascular medical treatment device as described in claim 1, which is characterized in that described is used for endovascular medical treatment
Device further includes handle, and the slender member further includes proximal segment for being connect with handle and positioned at the proximal segment and far
Hold the interlude between section, which is characterized in that the interlude includes at least first segment, second segment and third section, and described the
One section, second segment, third section proximally to being distally arranged in order, the hardness of the first segment, second segment and third section is not
It is identical.
6. being used for endovascular medical treatment device as claimed in claim 5, which is characterized in that the first segment, second segment and
Third section abuts successively.
7. being used for endovascular medical treatment device as claimed in claim 5, which is characterized in that the first segment, second segment and
The hardness of third section is sequentially reduced.
8. as claimed in claim 5 be used for endovascular medical treatment device, which is characterized in that the interlude further include for
The proximal end linkage section of proximal segment connection, is adjacent to the proximal end of the first segment, and the hardness of the proximal end linkage section is more than described the
One section of hardness.
9. as claimed in claim 5 be used for endovascular medical treatment device, which is characterized in that the interlude further include for
The distal end linkage section of distal ports connection, is adjacent to the distal end of the third section, and the hardness of the distal end linkage section is less than described the
Three sections of hardness.
10. being used for endovascular medical treatment device as claimed in claim 5, which is characterized in that the interlude includes interlude
Outer tube and interlude inner tube；The interlude outer tube includes interlude outer tube first segment, interlude outer tube second segment, intermediate outer tube
Third section；The interlude inner tube includes interlude inner tube first segment, interlude inner tube second segment, intermediate inner tube third section；Institute
It states interlude outer tube first segment and the interlude inner tube first segment constitutes the first segment of the interlude, the interlude outer tube
Second segment and the interlude inner tube second segment constitute the second segment of the interlude, the interlude outer tube third section and described
Interlude inner tube first segment constitutes the third section of the interlude.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810149489.7A CN108403178A (en) | 2018-02-13 | 2018-02-13 | One kind being used for endovascular medical treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810149489.7A CN108403178A (en) | 2018-02-13 | 2018-02-13 | One kind being used for endovascular medical treatment device |
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| CN108403178A true CN108403178A (en) | 2018-08-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109893310A (en) * | 2019-03-22 | 2019-06-18 | 蒋锋 | Encephalic bracket for eluting medicament |
| CN116983027A (en) * | 2023-09-27 | 2023-11-03 | 苏州大学附属第二医院 | Vascular closure device |
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| US20160114125A1 (en) * | 2014-10-27 | 2016-04-28 | Qxmedical, Llc | Variable Stiffness Balloon Catheter and Related Systems and Methods |
| CN209332152U (en) * | 2018-02-13 | 2019-09-03 | 上海心玮医疗科技有限公司 | One kind being used for endovascular medical device |
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| US20020026145A1 (en) * | 1997-03-06 | 2002-02-28 | Bagaoisan Celso J. | Method and apparatus for emboli containment |
| US20160114125A1 (en) * | 2014-10-27 | 2016-04-28 | Qxmedical, Llc | Variable Stiffness Balloon Catheter and Related Systems and Methods |
| CN209332152U (en) * | 2018-02-13 | 2019-09-03 | 上海心玮医疗科技有限公司 | One kind being used for endovascular medical device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109893310A (en) * | 2019-03-22 | 2019-06-18 | 蒋锋 | Encephalic bracket for eluting medicament |
| CN109893310B (en) * | 2019-03-22 | 2021-07-30 | 陕西省人民医院 | Intracranial medicine eluting bracket |
| CN116983027A (en) * | 2023-09-27 | 2023-11-03 | 苏州大学附属第二医院 | Vascular closure device |
| CN116983027B (en) * | 2023-09-27 | 2024-04-19 | 苏州大学附属第二医院 | Vascular closure device |
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