CN209347313U - Overlay film compound rest - Google Patents
Overlay film compound rest Download PDFInfo
- Publication number
- CN209347313U CN209347313U CN201821828040.5U CN201821828040U CN209347313U CN 209347313 U CN209347313 U CN 209347313U CN 201821828040 U CN201821828040 U CN 201821828040U CN 209347313 U CN209347313 U CN 209347313U
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- main body
- body rack
- film
- compound rest
- shape
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Abstract
The utility model relates to medical instruments, in particular to a kind of overlay film compound rest, it keeps being suitble to preferably prevent the blood flow in aneurysm from curing in favor of realizing while flexibility on the whole, in its blood vessel to contain aneurysm structure, it and include: main body rack, its inner hollow, whole in a tubular form and have circular section, and the main body rack passes through the webbed wall construction of metal wire knitted shape；Structure of film, its inner hollow, entirety is in a tubular form and the shorter than described main body rack, the structure of film and the coaxially mutual intussusception of the main body rack form the lap that the structure of film and the main body rack are bonded to each other with the middle section region in the main body rack.
Description
Technical field
The utility model relates to medical instrument, especially a kind of overlay film compound rest.
Background technique
Aneurysm is Common Cardiovascular Disease, and lethality is high if rupture.With the development of interventional technique, bracket
Appearance greatly improve the curative effect of interventional therapy intracranial aneurysm.Current clinically main support technology includes that bracket is auxiliary
Help Coil embolization art, blood flow guiding device implantation, stent inserting art.Bracket secondary spring circle embolism can change dynamic
Hemodynamic state, change parent artery curvature at arteries and veins tumor neck, " scaffold " for playing the role of vascular endothelial growth.Blood
Flow guide device can change intra-arterial hemodynamic state and induce thrombosis in aneurysm.Overlay film frame can completely cut off dynamic
Blood flow induces thrombosis in tumor in arteries and veins tumor.
But, the intravascular stent of the prior art still has some defects.
For example, needing to pass through bracket mesh by microtubular defeated in bracket secondary spring circle embolism interventional procedure
Spring ring is sent to clog aneurysm cavity, microtubular passes through the difficult of bracket gap and due to easily wearing out blood vessel when operation
It organizes and causes risk higher, and cost is also higher.There is recurrence, risk of rupture after Embolization of the intracranial aneurysm.
For another example, thrombosis in aneurysm is induced to change intra-arterial blood flow, it is desirable to bracket metal covering with higher
Rate.For example, the Pipeline bracket of metal coverage rate 30% or so clinically can be used to carry out interventional therapy at present.It is described herein
The metal coverage rate of intravascular stent refer to: the metal covering area in bracket accounts for the ratio of the bracket gross area.However, bracket is golden
Category coverage rate is higher, then its radial tension increases, and compliance is deteriorated；On the other hand, although bracket has higher metal coverage rate
Dynamics of arterial flow state can effectively be changed, but the even blood flow of blocks perimeter blood vessel may be interfered and volume is caused to patient
Outer injury.In addition, blood flow guiding device implantation surgery is expensive.
For another example, stent inserting can completely cut off blood flow in aneurysm, but it has the covering other perforating arteries of blood vessel
And the risk of normal blood flow is hindered, limit overlay film frame use scope.
Utility model content
Embodiment according to the present utility model provides a kind of overlay film compound rest, keeps being suitble to flexibility on the whole
The blood flow in aneurysm can be preferably prevented to cure in favor of realizing simultaneously.
Embodiment according to the present utility model provides a kind of overlay film compound rest, to contain the blood of aneurysm structure
Guan Zhong, comprising:
Main body rack, inner hollow, whole in a tubular form and have circular section, and the main body rack passes through wire
It weaves and the webbed wall construction of shape；
Structure of film, inner hollow, it is whole in a tubular form and the shorter than described main body rack, the structure of film and the master
The coaxially mutual intussusception of body support frame forms the structure of film and the main body rack with the middle section region in the main body rack
The lap being bonded to each other.
Preferably, in any embodiment of the utility model,
The main body rack is integrally in the shape of bent tube form.
Preferably, in any embodiment of the utility model,
The structure of film has cylindrical shape.
Preferably, in any embodiment of the utility model,
The structure of film is nested in outside the main body rack.
Preferably, in any embodiment of the utility model,
The structure of film is nested in the main body rack.
Preferably, in any embodiment of the utility model, further comprise:
Auxiliary stand, inner hollow, whole in a tubular form and have circular section, and the auxiliary stand passes through wire
Braiding and the webbed wall construction of shape, and with the coaxially mutual intussusception of the main body rack；
Wherein, the structure of film is arranged co-axially between the main body rack and the auxiliary stand, described
The middle section region of main body rack forms the overlapping portion that the structure of film and the main body rack, the auxiliary stand are bonded to each other
Point.
Preferably, in any embodiment of the utility model,
The main body rack changes between first shape and the second shape.
Preferably, in any embodiment of the utility model,
At least one end of the main body rack in its both ends has outward bell shape.
The overlay film compound rest provided by the embodiments of the present invention, while keeping being suitble to flexibility on the whole
The blood flow in aneurysm can be preferably prevented to cure in favor of realizing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the overlay film compound rest of embodiment according to the present utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.Obviously, described embodiment is only the utility model a part of the embodiment, rather than is all implemented
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment according to the present utility model provides a kind of overlay film compound rest, keeps being suitble to flexibility on the whole
The blood flow in aneurysm cavity preferably can be prevented or reduce simultaneously to cure in favor of realizing.
Embodiment according to the present utility model provides a kind of overlay film compound rest, to contain the blood of aneurysm structure
Guan Zhong, comprising:
Main body rack, inner hollow, whole in a tubular form and have circular section, and the main body rack passes through wire
It weaves and the webbed wall construction of shape；
Structure of film, inner hollow, it is whole in a tubular form and the shorter than described main body rack, the structure of film and the master
The coaxially mutual intussusception of body support frame forms the structure of film and the main body rack with the middle section region in the main body rack
The lap being bonded to each other.
In this way, passing through the combination of structure of film and main body rack, in alignment aneurysm structural openings (that is, opening of tumor neck)
Place forms lap (it is longer than aneurysm structural openings width) and closes the opening, since the closure of structure of film is higher than master
Body support frame, it is thus possible to which preferably closing aneurysm structure, the blood for preventing or reducing aneurysm region flow into favor of realizing
It cures.
On the other hand, since structure of film only needs the width slightly larger than aneurysm structural openings to realize closing, thus only
Lap need to be formed in the part (that is, its middle section region) of main body rack, and the rest part of main body rack still keeps preferable
Flexibility, make the overlay film compound rest on the whole still have preferable flexibility, easily enter focal area positioning.
In addition, the underlapped rest part in structure of film of main body rack keeps lower metal coverage rate, thus have
There is higher mesh density, so that the gap of the mesh reserved in its wall construction is enough that blood flow is allowed to pass through, thus dynamic in closing
Blood flow will not be interfered to pass through the other blood vessels in periphery while arteries and veins tumor structural openings.
It should again be emphasized that due to the specially designed structure of the overlay film compound rest, thus in intervention operation not
The operation for needing to carry out to clog bracket mesh again with spring ring, can not only significantly reduce operating difficulty and risk, and can also
Enough reduce cost.
It can be seen that this overlay film compound rest provided by the embodiments of the present invention, keeps suitable on the whole
The blood flow in aneurysm cavity can preferably be completely cut off while closing flexibility, promote thrombosis in aneurysm, in favor of realizing
It cures.
It should be understood that " aneurysm structure " described herein refers to the structure of broad sense, for example, cerebral aneurysm, dissecting aneurysm,
In addition false aneurysm etc. may also comprise and other be related to aneurysmal vascular lesion structure, such as arteriovenous fistula pathological structure etc..
Preferably, in any embodiment of the utility model, the main body rack is integrally in the shape of bent tube form.This
Sample, the shape of main body rack is consistent with the shape of locating blood vessel, can preferably be transported to intravascular accurate positionin.
Preferably, in any embodiment of the utility model, the structure of film has cylindrical shape.
In one embodiment, optionally, the structure of film can have the shape of bent tube form.
In one embodiment, optionally, structure of film is non-deformable rigid cylinder structure.
In one embodiment, optionally, structure of film is the rigid cylinder structure of side wall hollow out.This structure for example may be used
It is formed by laser engraving.
The structure of film of rigidity is capable of providing bigger radial support power, in favor of maintaining the knot of the overlay film compound rest
Structure stability.
In one embodiment, optionally, structure of film is in the center along length of main body rack.Namely
It says, the length in the main body rack part of structure of film arranged on left and right sides is roughly equal.
In another embodiment, optionally, structure of film is in the eccentric position along length of main body rack.Namely
It says, the length in the main body rack part of structure of film arranged on left and right sides is unequal.
In one embodiment, optionally, the length of the main body rack part of structure of film arranged on left and right sides is according to aneurysm
Depending on the length and shape of peripheral vessels.
In one embodiment, optionally, there can be multiple protrusions on the side of structure of film being bonded with main body rack
Partially (such as bump) is preferably to adhere to or fit on main body rack (for example, the protrusion of structure of film can be plugged into
It is kept fixed in the mesh of the netted wall construction of main body rack).
In one embodiment, optionally, structure of film at least partly includes biocompatible plastic film.
Preferably, in any embodiment of the utility model, the structure of film is nested in outside the main body rack.This
Sample, structure of film are arranged on the outer surface of main body rack, that is, in aneurysm structural openings and main body rack outer surface it
Between, thus it is bonded and good positioning effect, that is, structure of film be bonded closer with vascular wall, makes in aneurysm blood flow isolation, promotion
Thrombosis in aneurysm, in favor of realizing that knurl is cured.
Preferably, in any embodiment of the utility model, the structure of film is nested in the main body rack.This
Sample, structure of film are arranged on the inner surface of main body rack, not only not easily to fall off in operation, but also in use
It is not easy to wear.
In one embodiment, optionally, medicine layer is at least partly provided on the outer surface of structure of film.Medicine layer
The drug of middle setting can be used for slowing down patient's local inflammation, promote vessel endothelialisation, avoid blood vessel hyperplasia etc..
Preferably, in any embodiment of the utility model, further comprise:
Auxiliary stand, inner hollow, whole in a tubular form and have circular section, and the auxiliary stand passes through wire
Braiding and the webbed wall construction of shape, and with the coaxially mutual intussusception of the main body rack；
Wherein, the structure of film is arranged co-axially between the main body rack and the auxiliary stand, described
The middle section region of main body rack forms the overlapping portion that the structure of film and the main body rack, the auxiliary stand are bonded to each other
Point.
In this way, structure of film is clamped between main body rack and auxiliary stand, can good location, can preferably by
The effect of protection is to maintain its lap to close aneurysm structure.
In one embodiment, optionally, the length of auxiliary stand is greater than or equal to the length of structure of film.In this way, not
It only can avoid structure to be overlapped and blocks perimeter branch vessel, and can effectively enhance radial support power.
In one embodiment, optionally, the length of auxiliary stand is less than the length of main body rack.In this way, can not only keep away
Exempt from structure to be overlapped and blocks perimeter branch vessel, and can effectively enhance radial support power.
In one embodiment, optionally, auxiliary stand is nested in outside main body rack.
In one embodiment, optionally, auxiliary stand is nested in main body rack.
In one embodiment, optionally, fixed structure is respectively set on main body rack and auxiliary stand, by main body
Bracket and auxiliary stand are secured together.
In one embodiment, optionally, auxiliary stand is nested in outside main body rack, and shorter than main body rack.
In one embodiment, optionally, auxiliary stand is nested in outside main body rack, and can be stretched in the longitudinal direction
Contracting.
Preferably, in any embodiment of the utility model, the main body rack can be in first shape and the second shape
Between change.In this way, main body rack has the structure that can change shape, the first shape of contraction can be taken to move in favor of intervention
The concern position in blood vessel is moved, and the second shape of expansion can be taken to meet the shape of locating blood vessel, not only laminating degree
Height, and be easy to position.
In one embodiment, optionally, main body rack is self-expansion type bracket.In this way, main body rack reaches lesion
Self-expanding can be realized when region and is discharged to predetermined shape to accord with shape of blood vessel.
In one embodiment, optionally, part or all of main body rack is made up of memory alloy members.This
Sample, at least part of main body rack can be realized by memorial alloy effect to be turned between first shape and the second shape
Become.
Preferably, in any embodiment of the utility model, the main body rack can at least one end in its both ends
With outward bell shape.In this way, main body rack can be fixedly attached to blood vessel using the both ends of this toroidal.
In one embodiment, optionally, the bell shape of main body rack end has 30~60 degree of opening angle.
In one embodiment, optionally, auxiliary stand can at least one end in its both ends there is outward loudspeaker
Mouth-shaped.In this way, auxiliary stand can be fixedly attached to blood vessel using the both ends of this toroidal.
In one embodiment, optionally, the main body rack can at least one end in its both ends have and be flared out
Bell shape, the auxiliary stand is nested in that main body rack is outer and shorter than main body rack, so that the horn mouth of main body rack
The both ends of shape reach except the both ends of auxiliary stand.
In one embodiment, optionally, there is fin on the outer surface of main body rack.It can be conducive to be fixed to blood in this way
Pipe.
In one embodiment, optionally, multiple fins are at least parallel to each other in two end regions of main body rack
Arrangement.
In one embodiment, optionally, there is bulge loop on the outer surface of main body rack.It can be conducive to be fixed to blood in this way
Pipe.
In one embodiment, optionally, multiple bulge loops are at least parallel to each other in two end regions of main body rack
Arrangement.
In one embodiment, optionally, the outer surface of two end regions of main body rack is arranged in the fin or bulge loop
On.
In one embodiment, optionally, there is fin on the outer surface of the part beyond structure of film of auxiliary stand
Or bulge loop.It can be conducive to be fixed to blood vessel in this way.
In one embodiment, optionally, barb is provided on the outer surface of two end regions of main body rack.
In one embodiment, optionally, it is provided with down on the outer surface of the part beyond structure of film of auxiliary stand
Hook.
In one embodiment, optionally, main body rack is respectively arranged with indicating at its both ends, for example, proximal end indicating and
Distal end indicating.Be conducive to the overlay film compound rest in this way to be accurately positioned in the blood vessels.
In one embodiment, optionally, the indicating includes the snap ring covered in main body rack end.
In one embodiment, optionally, the indicating includes figure-8 structure.The indicating structure of such specific shape
Be conducive to identify.
In one embodiment, optionally, the mark of the axis of elongation extension along main body rack is provided on main body rack
Line.In this way, being conducive to that the overlay film compound rest is accurately positioned in the blood vessels.
In one embodiment, optionally, the indicating or the marking line are the structures that cannot be penetrated by X-ray, with benefit
In the position for developing and determining overlay film compound rest when X-ray is imaged.
Fig. 1 is the structural schematic diagram of the overlay film compound rest of embodiment according to the present utility model.
Visible a kind of overlay film compound rest in the embodiment shown in fig. 1, to contain aneurysm structure 200, (Fig. 1 is shown
Opening 222 at its tumor neck out) blood vessel 100 in, comprising:
Main body rack 500, inner hollow, whole in a tubular form and have circular section, and the main body rack passes through gold
Category silk weaves and the webbed wall construction of shape (is shown, generally lower extension with skewed crossing grid in Fig. 1, and is shown partially in out
Upper part 501 and lower part 502)；
Structure of film 600 (shows in Fig. 1 with vertical and horizontal grid), inner hollow, it is whole in a tubular form and the shorter than described master
Body support frame 500 (and the width for being longer than aneurysm structural openings 222), the structure of film and the main body rack are coaxially mutual
Intussusception is in the middle section region of the main body rack (being on main body rack in Fig. 1 between part 501 and lower part 502) shape
The lap being bonded to each other at the structure of film and the main body rack.
It should be understood that Fig. 1 is only schematic diagram, the part of main body rack 500 is schematically shown out, comprising: in structure of film 600
The upper part 501 of top, the middle section part Chong Die with structure of film intussusception and the lower part 502 below structure of film 600,
Main body rack used in reality can extend longer along blood vessel 100 as needed.It is further understood that main body branch shown in Fig. 1
The pattern of frame 500 and structure of film 600 is merely illustrative, and the pattern that actual product is formed is not limited to this, but can be as needed
Depending on.
The overlay film compound rest provided by the embodiments of the present invention, while keeping being suitble to flexibility on the whole
The blood flow in aneurysm preferably can be prevented or reduce to cure in favor of realizing.
It should be understood that the orientation described in herein, such as front, back, left, right, up, down etc. is the statement of relative position,
For describing the relative positional relationship between each associated components or part, and it is not intended to limit the protection model of the utility model
It encloses.
It should be noted that, in this document, such as first and second etc relational terms are used merely to an entity
Or operation is distinguished with another entity or operation, is existed without necessarily requiring or implying between these entities or operation
Any actual relationship or order.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-
It is exclusive to include, so that the process, method, article or equipment for including a series of elements not only includes those elements,
It but also including other elements that are not explicitly listed, or further include solid by this process, method, article or equipment
Some elements.In the absence of more restrictions, the element limited by sentence " including one ", is not arranged
Except there is also other identical factors in the process, method, article or apparatus that includes the element.
Herein in the description of multiple element, with multiple features arranged side by side that "and/or" is connected, refer to comprising these side by side
One or more of feature (or one or more).For example, " first element and/or second element " is meant that: first yuan
One or more of part and second element, that is, only first element or only second element or first element and second element (two
Person exists simultaneously).
Each embodiment provided in the utility model can be combined with each other as needed, such as any two, three
Feature in a or more embodiment is combined with each other to constitute the new embodiment of the utility model, this is also in the utility model
Protection scope in, unless otherwise stated or technically constitute contradiction and can not implement.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent substitution, improvement and etc. done should be included in the utility model
Within the scope of protection.
Claims (8)
1. a kind of overlay film compound rest, to contain in the blood vessel of aneurysm structure characterized by comprising
Main body rack, inner hollow, whole in a tubular form and have circular section, and the main body rack passes through metal wire knitted
And the webbed wall construction of shape；
Structure of film, inner hollow, it is whole in a tubular form and the shorter than described main body rack, the structure of film and the main body branch
The coaxially mutual intussusception of frame forms the structure of film with the middle section region in the main body rack and the main body rack is mutual
The lap of fitting.
2. overlay film compound rest as described in claim 1, which is characterized in that
The main body rack is integrally in the shape of bent tube form.
3. overlay film compound rest as described in claim 1, which is characterized in that
The structure of film has cylindrical shape.
4. overlay film compound rest as described in claim 1, which is characterized in that
The structure of film is nested in outside the main body rack.
5. overlay film compound rest as described in claim 1, which is characterized in that
The structure of film is nested in the main body rack.
6. overlay film compound rest as described in claim 1, which is characterized in that further comprise:
Auxiliary stand, inner hollow, whole in a tubular form and have circular section, and the auxiliary stand passes through metal wire knitted
And the webbed wall construction of shape, and with the coaxially mutual intussusception of the main body rack；
Wherein, the structure of film is arranged co-axially between the main body rack and the auxiliary stand, in the main body
The middle section region of bracket forms the lap that the structure of film and the main body rack, the auxiliary stand are bonded to each other.
7. such as overlay film compound rest described in any one of claims 1 to 6, which is characterized in that
The main body rack changes between first shape and the second shape.
8. such as overlay film compound rest described in any one of claims 1 to 6, which is characterized in that
At least one end of the main body rack in its both ends has outward bell shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821828040.5U CN209347313U (en) | 2018-11-07 | 2018-11-07 | Overlay film compound rest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821828040.5U CN209347313U (en) | 2018-11-07 | 2018-11-07 | Overlay film compound rest |
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| Publication Number | Publication Date |
|---|---|
| CN209347313U true CN209347313U (en) | 2019-09-06 |
Family
ID=67782422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821828040.5U Active CN209347313U (en) | 2018-11-07 | 2018-11-07 | Overlay film compound rest |
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| CN (1) | CN209347313U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109199636A (en) * | 2018-11-07 | 2019-01-15 | 北京市神经外科研究所 | Overlay film compound rest |
| WO2022022142A1 (en) * | 2020-07-29 | 2022-02-03 | 上海苏畅医疗科技有限公司 | Covered stent and covering method |
-
2018
- 2018-11-07 CN CN201821828040.5U patent/CN209347313U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109199636A (en) * | 2018-11-07 | 2019-01-15 | 北京市神经外科研究所 | Overlay film compound rest |
| WO2022022142A1 (en) * | 2020-07-29 | 2022-02-03 | 上海苏畅医疗科技有限公司 | Covered stent and covering method |
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