CN102743196A - Composite tube and interventional apparatus conveying system with same - Google Patents
Composite tube and interventional apparatus conveying system with same Download PDFInfo
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- CN102743196A CN102743196A CN2012101404319A CN201210140431A CN102743196A CN 102743196 A CN102743196 A CN 102743196A CN 2012101404319 A CN2012101404319 A CN 2012101404319A CN 201210140431 A CN201210140431 A CN 201210140431A CN 102743196 A CN102743196 A CN 102743196A
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Abstract
The invention relates to a composite tube and an interventional apparatus conveying system with same. The composite tube comprises an inner layer, a reinforced layer and an outer layer which are sequentially arranged, the reinforced layer is arranged between the inner layer and the outer layer, one end portion of the reinforced layer is in a structure provided with an axial support force and a radial elasticity, and the inner layer and the outer layer are lubricating elastic bodies made of the same or different high polymer materials. The composite tube and the interventional apparatus conveying system with the same have the advantages that an end port of the composite tube has superhigh radial elastic force and axial support strength, when the interventional apparatus conveying system with the composite tube is used for recycling an implant in an operation, a remote end catheter port portion of an outer sheath catheter can bear and comply with a great tensile force, a wrinkle can not occur in a radial direction, a released implant can be safely and rapidly recycled, besides, when the implant is successfully recycled, the shape of the remote end catheter of the outer sheath catheter is not changed, and the buckling is convenient.
Description
Technical field
The present invention relates to technical field of medical instruments, relate in particular to a kind of multiple tube and comprise the intervention apparatus conveying system of this multiple tube.
Background technology
Wicresoft's interventional therapy is meant under the situation of not operating on; On skin, blood vessel, do the passage aisle of several millimeters of diameters; Or through the original pipeline of human body; Under the guiding of image documentation equipment, to the minimum Therapeutic Method of wound that treat the focus part, its used therapeutic device generally includes sheath pipe induction system.
Sheath pipe induction system generally includes epitheca pipe and interior sheath pipe; With the blood vessel access is example, and the epitheca pipe extends along the human vas passage, builds a path that supplies implantation instrument to arrive focus; That is: implantation instrument gets into the epitheca pipe from epitheca pipe proximal port; And prolong through the epitheca pipe and be released into correct position from the far distance port of epitheca pipe, the focus part is treated, reach the purpose of treatment disease.In the implantation instrument dispose procedure, as the case may be, unfolded implantation instrument is retracted in the epitheca pipe again to need to discharge also sometimes, particularly in operation, runs into emergency situation, must race against time and regain implantation instrument as early as possible.
But the existing conveying epitheca pipe that is used to carry implantation instrument is many to be manufactured by macromolecular material, though the attribute performance of macromolecular material is good, its elasticity and intensity are relatively poor.At present; Though also have employing that reinforcement material is applied in the macromolecular material, for example weave webmaster, or elastic tube done reinforcement; With the inside and outside formation epitheca pipe of macromolecular material peplos at reinforced pipe; But above-mentioned measure has all just increased the fold resistance and the pressure-bearing property of epitheca pipe, and the implantation instrument that runs into when the epitheca pipe is regained implant is difficult to back go into, the problem of sheath pipe fold and obviously do not solve.
As shown in Figure 1, more smooth and easy when making epitheca pipe 10 get into human bodies because in implantation process, the diameter that carries the epitheca pipe 10 of implant 20 must cooperate selection with implant 20 with the compactest mode.Reclaim if in operation, need to discharge unfolded implant 20, and in heart, discharge the demi-inflation of unfolded implant 20 this moment, the state during the non-compression of volume; Meanwhile; Because the operation doctor is limited from the recovery power that epitheca pipe 10 handles are given to distal head 101 ports, distal head 101 ports of adding epitheca pipe 10 are tiny, elastic force is limited, if under this condition, reclaim by force; The internal friction of epitheca pipe 10 will be very big; Thereby cause epitheca pipe 10 distal heads 101 folds, bending can't be accomplished.
Therefore; The epitheca pipe of existing clinical usefulness is because its elasticity is bad or the shape restore funcitons is not strong, the axial support weak strength; If reclaim implantation instrument by force; Then the epitheca pipe far-end mouth of pipe has the situation of tearing to take place, and perhaps mouth of pipe expansion can't be satisfied and regain the requirement that has discharged implantation instrument in the intervene operation.
Summary of the invention
Main purpose of the present invention is to provide a kind of and has stronger radial elastic and axial support intensity, can be safely in intervene operation, quick withdrawal discharged the multiple tube of implant and comprised the intervention apparatus conveying system of this multiple tube.
In order to achieve the above object; The present invention proposes a kind of multiple tube, and this multiple tube comprises internal layer, enhancement Layer and the skin that sets gradually, and enhancement Layer places between the ectonexine; It is characterized in that said enhancement Layer one end is the structure with axial support power and radial elastic; Said internal layer and skin are the lubricated elastomer of identical or different macromolecular material.
Preferably, said end is the lattice structure with axial support power.
Preferably, said lattice structure is radially rounding state.
Preferably, the grid length of said lattice structure is from termination progressive shortening vertically of said end.
Preferably, the have hyperelastic structure of said lattice structure for processing by the Nitinol pipe.
Preferably, said middle level and said inside and outside layer bond through heat fusing or binding agent mode; Perhaps, said inside and outside layer combines with said middle level through immersion or sprayed coating mode.
Preferably, said lattice structure is that the nitinol alloy wire braiding forms, and it axially is provided with a supporting wire at least.
Preferably, said enhancement Layer comprises also that along said tubular axle combined Nei Yansheng second section is strengthened structure, is specially the spring structure of spring structure or band reinforcement, is connected with the enhancement Layer of affiliated termination.
Preferably, comprise that also the 3rd section is strengthened structure, be the reinforcement more than that is provided with vertically.
Preferably, said mesh shape is at least rhombus or rectangle.
The present invention also proposes a kind of intervention apparatus conveying system, comprises epitheca pipe and interior sheath pipe, and said epitheca pipe adopts aforesaid multiple tube.
Preferably, the surface of said epitheca pipe scribbles hydrophilic coating.
A kind of multiple tube that the present invention proposes and comprise the intervention apparatus conveying system of this multiple tube, this multiple tube be as the epitheca pipe of apparatus induction system, in its distal head adopts, domestic and abroad three-decker; Wherein, the middle level is an enhancement Layer, and this enhancement Layer one end is the structure with axial support power and radial elastic; Internal layer and skin are the lubricated elastomer of identical or different macromolecular material, thus, make the far-end of epitheca pipe have superpower radial elastic power and axial support intensity; In addition, at the multiple tube enhancement Layer at least one supporting wire is set, enhancement Layer is along tubular axle combined Nei Yansheng simultaneously; Comprise that also second section reinforcement structure is connected with the enhancement Layer of affiliated termination and the 3rd section reinforcement strengthened structure, further increased the axial support intensity of epitheca pipe; When reclaiming implant, epitheca pipe distal tube notch portion can be born very big tension force, and fold does not axially take place; And after implant reclaimed successfully, epitheca pipe distal tube shape can not change, and bending easily; Therefore, realized that through said structure safety, quick withdrawal have discharged the purpose of implant in intervene operation.
Description of drawings
Fig. 1 is the structural representation that the epitheca pipe is regained implant in the prior art;
Fig. 2 is the structural representation of multiple tube first embodiment of the present invention;
Fig. 3 is the structural representation of multiple tube second embodiment of the present invention;
Fig. 4 is a nozzle structure sketch map of regaining implant among multiple tube second embodiment of the present invention;
Fig. 5 is the sketch map of the reinforcement structure of the tubular axle combined Nei Yansheng in enhancement Layer edge among multiple tube the 3rd embodiment of the present invention;
Fig. 6 is the sketch map of the reinforcement structure of the tubular axle combined Nei Yansheng in enhancement Layer edge among multiple tube the 4th embodiment of the present invention;
Fig. 7 is the structural representation of multiple tube the 5th embodiment of the present invention;
Fig. 8 is an enhancement Layer end view among multiple tube the 6th embodiment of the present invention.
In order to make technical scheme of the present invention clearer, clear, will combine accompanying drawing to do further to detail below.
The specific embodiment
The solution of the embodiment of the invention mainly is: the epitheca pipe of intervention apparatus conveying system adopts multiple tube, and this multiple tube adopts interior, domestic and abroad three-decker, wherein; The middle level is an enhancement Layer; One end of this enhancement Layer is the structure with axial support power and radial elastic, and internal layer and skin are the lubricated elastomer of identical or different macromolecular material, so that epitheca pipe far-end has superpower radial elastic power and stronger axial support intensity; In addition; At the multiple tube enhancement Layer at least one supporting wire is set, enhancement Layer comprises also that along tubular axle combined Nei Yansheng strengthening structure for second section is connected with the enhancement Layer of affiliated termination simultaneously; Strengthen structure with the 3rd section reinforcement, further increase the axial support intensity of epitheca pipe.
As shown in Figure 2, Fig. 2 is the structural representation of multiple tube first embodiment of the present invention.
A kind of multiple tube 1 that present embodiment proposes; Epitheca pipe as intervention apparatus conveying system; This multiple tube 1 comprises: the internal layer 11, the enhancement Layer 12 and outer 13 that set gradually from the inside to the outside along the radial direction of multiple tube 1; Wherein, an end of enhancement Layer 12 is the structure with axial support power and radial elastic; Internal layer 11 and outer 13 is the lubricated elastomer of identical or different macromolecular material; Adopt PTFE (Poly tetra fluoro ethylene such as internal layer 11; Politef) macromolecular material; Outer 13 adopt PU (Polyurethane, polyurethanes are called for short polyurethane), Pebax (A Kema nylon elastomer), PE (PEF), Nylon materials such as (nylon).The head of multiple tube 1 enhancement Layer 12 adopts has super-elasticity and the very big material of extension rate, such as materials such as Latex, silicone (silicone plasties) and PU.
Above-mentioned inside and outside layer 11,13 and enhancement Layer 12 can adopt multiple combination, bond through heat fusing or binding agent mode with inside and outside layer 11,13 such as enhancement Layer 12; Perhaps, inside and outside layer 11,13 is realized combining for 12 layers with enhancement Layer through immersion or sprayed coating mode.
In the present embodiment, an end of enhancement Layer 12 is the lattice structure with axial support power, and its lattice structure radially is rounding state along multiple tube 1, and mesh shape can be rhombus, rectangle etc.
The lattice structure of enhancement Layer 12 can be the elastic reinforcement layer 12 that cutting forms, and has a hyperelastic lattice structure like what the Nitinol pipe was cut into, perhaps weaves the lattice structure that forms for nitinol alloy wire.Since lattice structure be in radially rounding state and place inside and outside layer 11, between 13; Making enhancement Layer 12 can comply with inside and outside layer 11,13 because of lattice structure expands; Promote to reset because of the strong layer of Nitinol pipe has shape memory function after expanding, increased the toughness of the radical elasticity of multiple tube 1 thus greatly; Simultaneously,, make multiple tube 1 axial direction, effectively stoped the generation of epitheca pipe distal head fold situation just as a metal pipe box because the diamond-shaped element of lattice structure is in contraction state.
As shown in Figure 3, Fig. 3 is the structural representation of multiple tube second embodiment of the present invention.
Present embodiment is similar with above-mentioned first embodiment; Its difference is; The enhancement Layer 12 of multiple tube 1 is elasticity braiding lattice structure in the present embodiment; The lattice structure that specifically can adopt nitinol alloy wire braiding to form simultaneously, axially is provided with a supporting wire 14 at enhancement Layer 12 along multiple tube 1 at least.According to the needs of multiple tube 1 axial support power, the supporting wire 14 in the enhancement Layer 12 can be two, three or more.
In use, as shown in Figure 4, Fig. 4 is a nozzle structure sketch map of regaining implantation instrument 2 in the present embodiment.One end of above-mentioned multiple tube 1 is in whole epitheca pipe distal head, and in implantation instrument 2 withdrawal processes, the mouth of pipe elasticity of multiple tube 1 is opened and is bell mouth shape; Not only make implantation instrument 2 get back to the epitheca pipe easily; But also precommpression implantation instrument 2 (as analysing and observe among Fig. 4 shown in the part 15), make implantation instrument 2 be progressive pattern and shrink, reduce and regain resistance; Impel implantation instrument 2 to regain smoothly; And the fold phenomenon axially can not take place in epitheca pipe distal head, and present embodiment has strengthened the axial support power of epitheca pipe through supporting wire 14 is set in enhancement Layer 12.
As shown in Figure 5, Fig. 5 is the structural representation of multiple tube the 3rd embodiment of the present invention.
Present embodiment is similar with above-mentioned second embodiment, and its difference is, in the present embodiment; By enhancement Layer 12 along 1 Nei Yansheng of multiple tube; Comprise that also second section is strengthened structure 111, wherein, it is the lattice structure that the Nitinol pipe cuts or the nitinol alloy wire braiding forms that is arranged near the distal head of epitheca pipe that enhancement Layer 12 is strengthened structure as first section; Second section is strengthened structure 111 is the stainless steel spring structure, is connected with first section enhancement Layer 12 of affiliated termination.
Said structure makes epitheca pipe integral body have better crooked pliability, have better axial support power simultaneously, and implantation instrument is regained smoothly, and epitheca pipe distal head axially the fold phenomenon can not take place.
Need to prove that second section stainless steel spring structure of strengthening structure 111 also can be replaced by the spring structure of band reinforcement in the present embodiment, can reach the effect that strengthens epitheca pipe integrally bending pliability and axial support power equally.
As shown in Figure 6, Fig. 6 is the structural representation of multiple tube the 4th embodiment of the present invention.
Present embodiment is similar with above-mentioned the 3rd embodiment; Its difference is; Strengthen at least one piece reinforcement 3 and above-mentioned stainless steel spring structure coaxial setting of structure 111 for second section that multiple tube 1 comprises in the present embodiment for being provided with vertically; Its reinforcement 3 length are strengthened structure less than spring structure, or suitable with spring structure reinforcement structure length; Spring structure is strengthened structure and is connected with first section enhancement Layer 12 of its affiliated termination.
As shown in Figure 7, Fig. 7 is the structural representation of multiple tube the 5th embodiment of the present invention.
When multiple tube 1 uses as the epitheca pipe; Because whole epitheca pipe is in the process that reclaims implanted object; The epitheca pipe radially receive very big power, still like this in the very long part of epitheca pipe near-end, in the prior art; Epitheca pipe rear end part interlayer is to be formed by the mesh grid compacting; It can not carry very big radial force, and present embodiment epitheca Guan Yuan, in, near-end adopt in, the multiple tube 1 of domestic and abroad three-decker, thereby and in multiple tube 1 segmentation vertically adopt the purpose that has realized the implant that withdrawal quick, safe in intervene operation has discharged with different enhancement Layers.
As shown in Figure 8, Fig. 8 is an enhancement Layer end view among multiple tube the 6th embodiment of the present invention.
Present embodiment can make up enforcement with above-mentioned each embodiment; On the basis of above-mentioned each embodiment; The grid length of the lattice structure in the present embodiment is from termination progressive shortening vertically of enhancement Layer 12 ends, and is as shown in Figure 8, and the lattice structure of enhancement Layer 12 ends comprises L1, L2 and three sections grids of L3 vertically from outside to inside; These three sections grid length are from termination progressive shortening vertically of enhancement Layer 12 ends, i.e. L3 < L2 < L1.This kind enhancement Layer 12 structures are when further strengthening the axial support power and radial elastic of multiple tube end, and front end opens the formation horn mouth easily.
In addition, the present invention also proposes a kind of intervention apparatus conveying system, comprises epitheca pipe and interior sheath pipe, and wherein, the epitheca pipe adopts the described multiple tube 1 of the foregoing description.The construction features of this multiple tube 1 please with reference to above-mentioned each embodiment, repeats no more at this.
As a kind of embodiment, the surface of above-mentioned epitheca pipe can scribble hydrophilic coating, to strengthen the slickness of epitheca tube-surface; Scribble the effective water of epitheca of hydrophilic layer moistening after, have similar Misgurni anguillicaudati surface smooth.
Embodiment of the invention multiple tube 1 and comprise this multiple tube 1 intervention apparatus conveying system, this multiple tube 1 be as the epitheca pipe of apparatus induction system, in its distal head adopts, domestic and abroad three-decker; Wherein, the middle level is an enhancement Layer 12, and these enhancement Layer 12 1 ends are the structure with axial support power and radial elastic; Internal layer 11 and outer 13 is the lubricated elastomer of identical or different macromolecular material, thus, makes the far-end of epitheca pipe have superpower radial elastic power and axial support intensity; In addition, comprise that also second section spring structure reinforcement structure is connected with the enhancement Layer 12 of affiliated termination and the 3rd section reinforcement strengthened structure; Further increased the axial support intensity of epitheca pipe, when reclaiming implant, epitheca pipe distal tube notch portion can be born very big tension force; Fold does not axially take place; And after implant reclaimed successfully, epitheca pipe distal tube shape can not change, and bending easily; Therefore, realized that through said structure safety, quick withdrawal have discharged the purpose of implant in intervene operation.
The above is merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or flow process conversion that utilizes description of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present invention.
Claims (12)
1. multiple tube, this multiple tube comprises internal layer, enhancement Layer and the skin that sets gradually, enhancement Layer places between the ectonexine, it is characterized in that: said enhancement Layer one end is the structure with axial support power and radial elastic; Said internal layer and skin are the lubricated elastomer of identical or different macromolecular material.
2. multiple tube according to claim 1 is characterized in that, said end is the lattice structure with axial support power.
3. multiple tube according to claim 2 is characterized in that said lattice structure is radially rounding state.
4. multiple tube according to claim 3 is characterized in that, the grid length of said lattice structure is from termination progressive shortening vertically of said end.
5. multiple tube according to claim 4 is characterized in that, the have hyperelastic structure of said lattice structure for being processed by the Nitinol pipe.
6. multiple tube according to claim 1 is characterized in that, said middle level and said inside and outside layer bond through heat fusing or binding agent mode; Perhaps, said inside and outside layer combines with said middle level through immersion or sprayed coating mode.
7. multiple tube according to claim 3 is characterized in that, said lattice structure is that the nitinol alloy wire braiding forms, and it axially is provided with a supporting wire at least.
8. according to each described multiple tube among the claim 1-6; It is characterized in that said enhancement Layer comprises also that along said tubular axle combined Nei Yansheng second section is strengthened structure; Be specially the spring structure of spring structure or band reinforcement, be connected with the enhancement Layer of affiliated termination.
9. multiple tube according to claim 8 is characterized in that, comprises that also the 3rd section is strengthened structure, is the reinforcement more than that is provided with vertically.
10. multiple tube according to claim 9 is characterized in that said grid shape is at least rhombus or rectangle.
11. an intervention apparatus conveying system comprises epitheca pipe and interior sheath pipe, it is characterized in that, adopts each described multiple tube among the claim 1-9 at said epitheca pipe.
12. intervention apparatus conveying system according to claim 11 is characterized in that, the surface of said epitheca pipe scribbles hydrophilic coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210140431.9A CN102743196B (en) | 2012-05-08 | 2012-05-08 | Composite tube and interventional apparatus conveying system with same |
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| CN201210140431.9A CN102743196B (en) | 2012-05-08 | 2012-05-08 | Composite tube and interventional apparatus conveying system with same |
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| CN102743196A true CN102743196A (en) | 2012-10-24 |
| CN102743196B CN102743196B (en) | 2015-01-07 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015032292A1 (en) * | 2013-09-04 | 2015-03-12 | 杭州启明医疗器械有限公司 | Sheath-core for delivering interventional device and delivery system comprising same |
| CN105105894A (en) * | 2015-07-20 | 2015-12-02 | 宁波琳盛高分子材料有限公司 | Reinforced compound sheathing canal, preparation method and application thereof |
| CN106620997A (en) * | 2017-01-04 | 2017-05-10 | 临沂市兴华医用器材有限公司 | Double-layer combined anesthesia catheter |
| CN107550602A (en) * | 2017-09-28 | 2018-01-09 | 沛嘉医疗科技(苏州)有限公司 | One kind is through conduit aorta petal induction system and its application method |
| WO2019128779A1 (en) * | 2017-12-29 | 2019-07-04 | 先健科技(深圳)有限公司 | Withdraw system and sheath tube for lung volume reduction implant |
| CN112023130A (en) * | 2020-08-25 | 2020-12-04 | 宁波市医疗中心李惠利医院 | Guiding device for first aid under endoscope |
| CN113116597A (en) * | 2019-12-31 | 2021-07-16 | 先健科技(深圳)有限公司 | Adjustable bent sheath tube and in-situ windowing device |
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| CN109984876B (en) * | 2017-12-29 | 2021-10-22 | 深圳市先健呼吸科技有限公司 | Retrieval system and sheath for a lung volume reduction implant |
| CN113116597A (en) * | 2019-12-31 | 2021-07-16 | 先健科技(深圳)有限公司 | Adjustable bent sheath tube and in-situ windowing device |
| CN112023130A (en) * | 2020-08-25 | 2020-12-04 | 宁波市医疗中心李惠利医院 | Guiding device for first aid under endoscope |
| CN112023130B (en) * | 2020-08-25 | 2023-05-12 | 宁波市医疗中心李惠利医院 | Guiding device for first aid under endoscope |
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| CN102743196B (en) | 2015-01-07 |
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Inventor after: Wang Yuehan Inventor after: Zhang Zhifei Inventor after: Wang Yunbing Inventor after: Lv Shouliang Inventor before: Wang Yuehan Inventor before: Zhang Zhifei Inventor before: Lv Shouliang |
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Address after: 310051 311, 3 building, 2 building, 88 Jiangling Road, Binjiang District, Hangzhou, Zhejiang. Patentee after: Hangzhou Qiming Medical Devices Co., Ltd. Address before: 310000 Tax Friends Building 201, 3738 Nanhuan Road, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Qiming Medical Device Co., Ltd. |