CN106063735A - A kind of artificial blood vessel bracket and carrier thereof - Google Patents
A kind of artificial blood vessel bracket and carrier thereof Download PDFInfo
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- CN106063735A CN106063735A CN201610555495.3A CN201610555495A CN106063735A CN 106063735 A CN106063735 A CN 106063735A CN 201610555495 A CN201610555495 A CN 201610555495A CN 106063735 A CN106063735 A CN 106063735A
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- bare bracket
- carrier
- silk
- support
- core pipe
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2/07—Stent-grafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/97—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve the outer sleeve being splittable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2/07—Stent-grafts
- A61F2002/077—Stent-grafts having means to fill the space between stent-graft and aneurysm wall, e.g. a sleeve
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2002/9528—Instruments specially adapted for placement or removal of stents or stent-grafts for retrieval of stents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2002/9534—Instruments specially adapted for placement or removal of stents or stent-grafts for repositioning of stents
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Prostheses (AREA)
Abstract
It is an object of the invention to provide a kind of artificial blood vessel bracket and carrier thereof, it is characterised in that described support includes head end bare bracket, overlay film main body, tightens up silk, conveying silk；Wherein, tighten up one end described in be connected with described overlay film body rear；The described other end tightening up silk is connected with described conveying silk.Described carrier includes: seeker, core pipe, main sheath pipe, outer tube.By upper, the present invention is advantageously implemented the recovery to intravascular stent, in order to this intravascular stent is carried out second positioning and release.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of artificial blood vessel bracket and carrier thereof.
Background technology
Angiopathy can be divided into arteriovascular diseases and vein blood vessel disease according to vessel position, wherein: described arterial blood
Pipe disease can be subdivided into again expanding arteriovascular diseases and occlusive arterial angiopathy, and described vein blood vessel disease again can be thin
It is divided into Vein reflux type sick and vein occlusion is sick；Described angiopathy can be divided into congenital vascular disease and wound according to morbidity cause
Hinder type angiopathy, wherein: described congenital vascular disease can be subdivided into again deformation, venous malformation and hemangioma, institute
State wound angiopathy and can be subdivided into again artery trauma, venous wounds and arteriovenous associating wound.
Traditional vascular operation mode, reaches to treat angiopathy by the way of directly cutting lesion vessels
Purpose；Owing to patient's majority of angiopathy is old patient, its health is the weakest, it is difficult to bear traditional
The huge operation wound that vascular operation is brought, so in recent years, the therapeutic modality of angiopathy is from traditional blood vessel
Section's modus operandi changes to the Endovascular therapy mode of Wicresoft, and such as, last century, the nineties started the most progressively to push away
Puncture shaping surgery PTA (Percutaneous Transluminal Angiography, the Percutaneous intravascular of row
Angioplasty), i.e. under the guiding of medical imaging device, by little otch, intravascular intracavity sends into special metal rack,
For treating the disease of blood vessel, reach the therapeutic effect as performing the operation with surgical sectioning, and can greatly reduce hemorrhage and also
Send out disease, shorten recovery time.
Can use various different support in a large number in different therapeutic processes, these supports can be transported to blood by conduit
The diseased region of pipe, such as: at the abnormal vasculars such as angiostenosis, hemangioma, arteriovenous fistula；But the surgery situation of reality is sometimes
Complex, most supports form upon discharge and position are unsatisfactory, it is impossible to meet the requirement for the treatment of itself, often
Need first to be recovered in conduit or sheath pipe carry out second positioning and release.But, the support having at present can not realize recyclable,
Therefore it is unfavorable for carrying out second positioning and release.
Summary of the invention
In view of this, present invention is primarily targeted at a kind of artificial blood vessel bracket of offer and carrier thereof, it is achieved that right
Intravascular stent recyclable, is conducive to this intravascular stent is carried out second positioning and release.
The embodiment of the present invention provides a kind of artificial blood vessel bracket, and described support includes head end bare bracket, overlay film main body, tightens up
Silk, conveying silk；
Wherein, tighten up one end described in be connected with described overlay film body rear；
The described other end tightening up silk is connected with described conveying silk.
By upper, carry silk and tighten up silk this intravascular stent can be reclaimed by straining, be conducive to the most just this blood vessel
Support carries out second positioning and release.
Preferably, described support also includes electrolysis knot, described electrolysis knot be positioned at described in tighten up silk and described overlay film main body after
The junction of end.
Preferably, the material of described electrolysis knot is soluble material after energising.
By upper, by dissolving after electrolysis knot energising, this artificial blood vessel bracket can discharge completely, to realize permanent planting
Enter.
Preferably, described overlay film main body is tubular, is made up of metallic framework and overlay film；Wherein, can in described overlay film main body
It is provided with collateral.
Preferably, described metallic framework is made up of memorial alloy braiding；Described support is self-expanding expansion support；Described
Covering material includes but not limited to: politef.
The embodiment of the present invention additionally provides a kind of carrier based on above-mentioned intravascular stent, it is characterised in that described conveying
Device includes: seeker, core pipe, main sheath pipe, outer tube；
Wherein, described seeker is connected with described core pipe；
Described main sheath pipe box is located at outside described core pipe, and can move axially along described core pipe；
Described outer tube sleeve is located at outside described main sheath, and can move axially along described main sheath pipe；
The front end of described main sheath pipe includes the inflatable portion for housing intravascular stent, and the front end of described inflatable portion is arranged
Having the annulus of hollow, being provided with in described annulus can the elastic metallic yarn of self-expanding；
In bell mouth shape after the release of described inflatable portion.
By upper, by carrier to artificial blood vessel bracket taken appointment position.When artificial blood vessel bracket is reclaimed, outer tube
Recession, in bell mouth shape after the front end inflatable portion release of main sheath pipe.Be conducive to convenient realize intravascular stent recyclable.
Preferably, described carrier also includes:
Become to depart from quilt with from the State Transferring being kept for making the head end bare bracket of intravascular stent be in held state
The lock control assembly of hold mode, this lock control assembly is presented axially between described seeker and described main sheath pipe.
Preferably, described lock control assembly includes:
Bare bracket keeper, is arranged on the outside of core pipe, and the bare bracket of the head end that can house intravascular stent makes this bare bracket
For the state being kept；
Bare bracket housing piece, is arranged on the outside of core pipe, and structure is provided with the recessed of the bare bracket after housing contraction
Groove；
Spring, for adjusting the relative position between bare bracket housing piece with bare bracket keeper；
Unlock piece, its one end is connected with described bare bracket keeper, and the other end passes axially through described core Guan Bingcong core pipe
End stretch out.
Preferably, the material of described inflatable portion and described annulus is elastomeric expandable material.
In sum, the present invention provides a kind of artificial blood vessel bracket and carrier thereof, both can realize propping up artificial blood vessel
Frame permanent implanted, it is also possible to realize the recovery to intravascular stent, thus be conducive to this intravascular stent is carried out second positioning
And release.
Accompanying drawing explanation
A kind of artificial blood vessel bracket structural representation that Fig. 1 provides for the present invention；Wherein, a is that intravascular stent discharges temporarily
After structural representation；Carrier, for when artificial blood vessel bracket to be reclaimed, is goed deep into below intravascular stent by b, tension conveying silk
Time intravascular stent structural representation；C is for when to be energized and to make electrolysis knot dissolve, and to draw back receipts by intravascular stent Permanent implantation
Tight silk and conveying silk, and the structural representation by the intravascular stent after the release of head end bare bracket；
A kind of artificial blood vessel bracket carrier population structure schematic diagram that Fig. 2 provides for the present invention；
Fig. 3 is enlarged drawing at A in Fig. 2, and expression is the structural representation of blood vessel bracket conveyer lock control assembly of the present invention
Figure, now lock control assembly is in the lock state；
Fig. 4 is structural representation when being in released state of the lock control assembly shown in Fig. 2；
Fig. 5 is to represent the schematic diagram of the shape of cross section of bare bracket housing piece in Fig. 2；
Fig. 6 is to represent the effect schematic diagram after the front end inflatable portion of the main sheath pipe of carrier is released in Fig. 2.
Detailed description of the invention
The structure of the artificial blood vessel bracket that the present invention provides is illustrated below in conjunction with figure.
As it is shown in figure 1, artificial blood vessel bracket by overlay film main body 101, head end bare bracket 102, electrolysis knot 103, tighten up silk
104, conveying silk 105 forms.
Wherein, tighten up silk 104 one end to be connected with described overlay film body rear with by electrolysis knot 103；Tighten up the another of silk 104
One end is connected with described conveying silk 105.
The material of electrolysis knot 103 is soluble material after energising.Described overlay film main body is tubular, by metallic framework and overlay film
Composition；Wherein, described overlay film main body can be provided with collateral.
Metallic framework is made up of memorial alloy braiding；Described support is self-expanding expansion support；Described covering material bag
Include but be not limited to: politef.
Wherein, Fig. 1 a is the state after discharging after intravascular stent enters human body, and this state is that (now head end is naked for transitory state
Support is hold mode, not release), artificial blood vessel bracket can be reclaimed as required, or forever discharge intravascular stent.Figure
1b shows when artificial blood vessel bracket to be reclaimed, and is goed deep into by carrier below intravascular stent, and blood vessel during tension conveying silk props up
The configuration state of frame；Fig. 1 c shows when to be energized and to make electrolysis knot dissolve, and to draw back and tighten up silk by intravascular stent Permanent implantation
With conveying silk, and the configuration state of intravascular stent after head end bare bracket is discharged.
As shown in Figure 2 and Figure 6, artificial blood vessel bracket carrier is by seeker 201, core pipe 203, main sheath pipe 205, outer tube
207 compositions.Wherein, seeker 201 is connected with core pipe 203；It is outside that main sheath pipe 205 is set in core pipe 203, and can be along described core pipe
203 move；It is outside that outer tube 207 is set in main sheath pipe 205, and can move axially along described main sheath pipe 205；The front end bag of main sheath pipe
Including inflatable portion 205c for housing intravascular stent, the front end of this inflatable portion is provided with the annulus 205d of hollow, this ring
Being provided with in shape portion can the elastic metallic yarn of self-expanding；In bell mouth shape after the release of this inflatable portion.Inflatable portion and annulus
Material be elastomeric expandable material.
Additionally, this carrier also includes the main sheath pipe handle 205a being connected to main sheath pipe end and is connected to outer tube end
Outer tube handle 207a, in addition, this carrier also includes:
For making the head end bare bracket of intravascular stent be in held state and become to depart from quilt from the State Transferring being kept
The lock control assembly 210 of hold mode, this lock control assembly 210 is presented axially between described seeker 201 and main sheath pipe 205.
This lock control assembly includes:
Bare bracket keeper 211, is arranged on the outside of core pipe 203, and the bare bracket of the head end that can house intravascular stent makes naked
Support is the state being kept；
Bare bracket housing piece 212, is arranged on the outside of core pipe 203, and structure is provided with naked after housing contraction
The groove of frame；
Spring 213, for adjusting the relative position between bare bracket housing piece with bare bracket keeper；
Unlock piece 214, its one end is connected with described bare bracket keeper, and the other end passes axially through described core pipe 203 also
Stretch out from the end of core pipe 203.
As shown in Figures 3 to 5, bare bracket housing piece 212 axial direction is cylindrical part, and its cross section is class pentalpha
Shape, five angles are arc transition.In the present embodiment, bare bracket housing piece 212 is contained on the outer surface of core pipe 203 and core pipe
203 is coaxial, and core pipe 203 is fixed relatively.Bare bracket keeper 211 is cartridge, side (in figure right side) uncovered for
Turnover bare bracket housing piece 212 and bare bracket；Opposite side (left side in figure) is in addition to leaving the hole of mounting core pipe, for enclosed construction.
Bare bracket keeper 211 is arranged on the outer surface of core pipe 203 coaxial with core pipe 203, and can relatively move axially by core pipe 203.
It is internal that spring 213 is arranged on bare bracket keeper 211, and two ends are received with bare bracket keeper 211 closed bottom and bare bracket respectively
Hold part 212 front end to be connected.Unlock piece 214 can select the tinsel of rigidity or flexibility, or other similar thread-like member.This solution
Latch fitting 214 one end is connected with bare bracket keeper 211, and the other end passes axially through core pipe 203, and from the end (figure of core pipe 203
Middle right side) stretch out.
In said structure, when spring 213 is in compressive state, bare bracket is housed in bare bracket housing piece 212, and
It is maintained in bare bracket keeper 211, now for lock-out state (seeing Fig. 3).When loosening unlock piece 214 makes bare bracket keep
When part 211 moves with the restoring force forward end of spring 213, bare bracket departs from bare bracket keeper 211, is now released state
(seeing Fig. 4).
Additionally, as in figure 2 it is shown, be also associated with haemostatic valve and exhaustor (not shown), this haemostatic valve and row on outer tube 207
The air between outer tube 207 and main sheath pipe 205 in micro gap is discharged in trachea water filling before making arrangements for surgery.And at core pipe
The end of 203 also is provided with exhaust apparatus 209, and it discharges the air in core pipe 203 for preoperative water filling.
Additionally, the end at main sheath pipe handle 205a is additionally provided with locking device 205b, can by means of this locking device 205b
Main sheath pipe 205 is locked on core pipe 203.When pre-installing intravascular stent, this locking device 205b is opened, according to intravascular stent
Length regulate the length that the front end (in figure left side) of core pipe 203 is stretched out from main sheath pipe 205.Additionally, advance at carrier
During discharging with intravascular stent, this locking device 205b maintains the lock status, between the most main sheath pipe 205 and core pipe 203 not
Produce relative movement.
Additionally, the end at outer tube handle 207a also is provided with locking device 207b, can be by by means of this locking device 207b
Outer tube 207 is locked on main sheath pipe 205, thus outer tube 207 is unlikely to mobile during carrier advances.
Below, in conjunction with Fig. 2 to Fig. 5, by this blood vessel bracket conveyer being applied to the EVAR of arotic disease
A specific embodiment, the operational approach of blood vessel bracket conveyer according to the first embodiment of the invention is carried out in detail
Explanation.
The first step, pre-installs intravascular stent (not shown) on a conveyor.
First, the bare bracket of the five petal shape of intravascular stent head end to be conveyed is hung in bare bracket housing piece
On five holding bars of 212, and the five petal shape bare bracket that gathering is got up to be housed in five of bare bracket housing piece 212 recessed
In groove (seeing Fig. 5).
Then, by pulling the unlock piece 214 by the lock control assembly 210 passing in core pipe 203 and being stretched out by end to make naked
Rack holder 211 moves to the back-end, i.e. to bare bracket housing piece 212 1 side shifting.Make bare bracket be housed in bare bracket to house
On part 212, and being maintained in bare bracket keeper 211, now, lock control assembly 210 is lock-out state.
Now, intravascular stent remainder in addition to head end bare bracket is housed in the inflatable portion of main sheath pipe.
So far pre-loading step completes.
Second step, other preparations preoperative.
Check that each parts of blood vessel bracket conveyer are the most intact, by the haemostatic valve being connected with outer tube 207 and exhaustor
The air between outer tube 207 and main sheath pipe 205 in micro gap is discharged in water filling, and by the exhaust apparatus 209 of core pipe 203 end
The air in core pipe 203 is discharged in water filling.
3rd step, is delivered to diseased region by support.
The state of locking it is at locking device 205b, 207b of main sheath pipe handle 205a and outer tube handle 207a end
Under, the carrier guiding by seeker 201 of support to be conveyed will be preinstalled with, along preset adding for guiding core pipe 203
Stiff guide wire enters peripheral arterial (femoral artery usually cut), and continuation is advanced into aortic disease position, and then passing through can
Position accurately with the metal marker of the seeker 201 developed under x-ray and the beginning of the overlay film of support.
4th step, discharges support temporarily.After execution of step four, according to user's needs, can select to perform further
5th step, forever discharges support, or performs the 6th step, reclaim intravascular stent.
Locking device 205b, 207b of will be located in main sheath pipe handle 205a and outer tube handle 207a end open respectively, with
Time withdraw main sheath pipe 205 and outer tube 207, to discharge the rear end overlay film main part of intravascular stent.Now, at lock control assembly 210
In lock-out state (see Fig. 3), the bare bracket part of intravascular stent head end is not decontroled, and blood can pass through overlay film main part
And the space between blood vessel wall is flow through to blood vessel distal end so that the near-end (in Fig. 2, left end, lower same) of support and far-end are (in Fig. 2
Right-hand member, lower with) pressure differential be unlikely to excessive, reduce the blood flow impulsive force to support, so that support is not likely to produce displacement.
It it is now interim release intravascular stent state.
5th step, forever discharges support, is withdrawn from by carrier.
The unlock piece 214 of lock control assembly 210 is unclamped, so that bare bracket keeper 211 returns to seeker 201 side.
Departing from the constraint of bare bracket keeper 211, the five petal shape support of bare bracket head end just departs from from five holding bars.I.e.
Lock control assembly 210 is in released state (shown in Fig. 3).Now, departing from the support keeping bar constraint in bare bracket housing piece 212
The bare bracket of head end expands outwardly under natural resiliency effect.
Meanwhile, energising make to be positioned at described in tighten up the electrolysis knot of silk and the junction of described overlay film body rear and dissolve.Draw back
Carry silk and tighten up silk, and whole carrier is withdrawn from backward, when seeker 201 arrives the far-end of support, is arranged on main sheath
The locking device 205b of pipe handle 205a end locks all the time, promotes the most forward the outer tube handle 207a of outer tube 207, makes outer tube
The front end of 207 and the end fluid-tight engagement of seeker 201, then lock the locking device 207b being positioned at outer tube handle 207a end,
Finally by external for the pull-out of carrier entirety.
6th step, reclaims intravascular stent.
Pull outer tube handle 207a will to remove outside the outer tube of carrier so that the front end of main sheath pipe 205 is used for housing blood vessel and props up
The inflatable portion release of frame, the front end of described inflatable portion is provided with the annulus of hollow, and being provided with in described annulus can be certainly
The elastic metallic yarn expanded；As shown in Figure 6, it is shown that the front end inflatable portion of the main sheath pipe of carrier be released after effect.
In the bell mouth shape being conducive to the convenient recovery to intravascular stent after the release of described inflatable portion.Afterwards, tension conveying silk and receipts
Tight silk, makes intravascular stent enter the inflatable portion being in bell mouth shape.When inflatable completely into main sheath pipe 205 of intravascular stent
Behind portion, promote forward the outer tube handle 207a of outer tube 207, make the front end of outer tube 207 and the end fluid-tight engagement of seeker 201,
Locking is positioned at the locking device 207b of outer tube handle 207a end, finally by external for the pull-out of carrier entirety, it is achieved that to blood again
The recovery of pipe holder.
The foregoing is only the better embodiment of the present invention, can not be in order to show the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made between god and principle, all because being included in protection scope of the present invention within.
Claims (9)
1. an artificial blood vessel bracket, it is characterised in that described support includes head end bare bracket, overlay film main body, tightens up silk, conveying
Silk；
Wherein, tighten up one end described in be connected with described overlay film body rear；
The described other end tightening up silk is connected with described conveying silk.
Support the most according to claim 1, it is characterised in that described support also includes electrolysis knot, and described electrolysis knot is positioned at
The described junction tightening up silk and described overlay film body rear.
Support the most according to claim 1, it is characterised in that the material of described electrolysis knot is soluble material after energising.
Support the most according to claim 1, it is characterised in that described overlay film main body is tubular, by metallic framework and overlay film
Composition.
Support the most according to claim 4, it is characterised in that described metallic framework is made up of memorial alloy braiding；Described
Support is self-expanding expansion support；Described covering material includes but not limited to: politef.
6. a carrier based on intravascular stent described in claim 1-5, it is characterised in that described carrier includes: guide
Head, core pipe, main sheath pipe, outer tube；
Wherein, described seeker is connected with described core pipe；
Described main sheath pipe box is located at outside described core pipe, and can move axially along described core pipe；
Described outer tube sleeve is located at outside described main sheath, and can move axially along described main sheath pipe；
The front end of described main sheath pipe includes the inflatable portion for housing intravascular stent, during the front end of described inflatable portion is provided with
Empty annulus, being provided with in described annulus can the elastic metallic yarn of self-expanding；
In bell mouth shape after the release of described inflatable portion.
Carrier the most according to claim 6, it is characterised in that described carrier also includes:
For making the head end bare bracket of intravascular stent be in held state and become disengaging to be kept from the State Transferring being kept
The lock control assembly of state, this lock control assembly is presented axially between described seeker and described main sheath pipe.
Carrier the most according to claim 7, it is characterised in that described lock control assembly includes:
Bare bracket keeper, is arranged on the outside of core pipe, and the head end bare bracket that can house intravascular stent is the shape being kept
State；
Bare bracket housing piece, is arranged on the outside of core pipe, and structure is provided with the recessed of the head end bare bracket after housing contraction
Groove；
Spring, for adjusting the relative position between bare bracket housing piece with bare bracket keeper；
Unlock piece, its one end is connected with described bare bracket keeper, and the other end passes axially through the end of described core Guan Bingcong core pipe
End stretches out.
Carrier the most according to claim 6, it is characterised in that the material of described inflatable portion and described annulus is bullet
Property expandable material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555495.3A CN106063735A (en) | 2016-07-14 | 2016-07-14 | A kind of artificial blood vessel bracket and carrier thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555495.3A CN106063735A (en) | 2016-07-14 | 2016-07-14 | A kind of artificial blood vessel bracket and carrier thereof |
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| CN106063735A true CN106063735A (en) | 2016-11-02 |
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| CN201610555495.3A Pending CN106063735A (en) | 2016-07-14 | 2016-07-14 | A kind of artificial blood vessel bracket and carrier thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108670501A (en) * | 2018-05-07 | 2018-10-19 | 杭州启明医疗器械有限公司 | A kind of sheath and transport system convenient for recycling intervention apparatus |
| CN110393616A (en) * | 2019-07-11 | 2019-11-01 | 武汉麦迪领科医疗科技有限公司 | A kind of conveying of overlay film frame and release system |
| CN112263362A (en) * | 2020-09-11 | 2021-01-26 | 中国人民解放军陆军军医大学第一附属医院 | Recoverable covered stent |
| WO2021129631A1 (en) * | 2019-12-23 | 2021-07-01 | 杭州唯强医疗科技有限公司 | Stent delivery and release device and stent delivery and release system |
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| CN108670501B (en) * | 2018-05-07 | 2023-12-26 | 杭州启明医疗器械股份有限公司 | Sheath tube convenient for recovering interventional instrument and conveying system |
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| CN112263362B (en) * | 2020-09-11 | 2023-09-19 | 中国人民解放军陆军军医大学第一附属医院 | Recoverable tectorial membrane support |
| CN114948335A (en) * | 2022-07-29 | 2022-08-30 | 北京华脉泰科医疗器械股份有限公司 | Embolic occlusion device and method of implanting the same |
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Application publication date: 20161102 |