CN104546246A - Vascular stent conveying system and conveying method thereof - Google Patents
Vascular stent conveying system and conveying method thereof Download PDFInfo
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- CN104546246A CN104546246A CN201510000749.0A CN201510000749A CN104546246A CN 104546246 A CN104546246 A CN 104546246A CN 201510000749 A CN201510000749 A CN 201510000749A CN 104546246 A CN104546246 A CN 104546246A
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- intravascular stent
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- interior pipe
- agnail
- induction system
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Abstract
The invention discloses a vascular stent conveying system and a conveying method thereof. The vascular stent conveying system comprises a catheter unit and a conveying device for driving the catheter unit. The catheter unit comprises an outer pipe and an inner pipe, vascular stents are arranged between the outer pipe and the inner pipe, a barb penetrating inner cavities of the vascular stents is fixedly arranged on the inner pipe and comprises a circular sleeve portion and an elastic portion, the elastic portion is abutted to the vascular stents, and the conveying device drives the barb to extend and retract through the inner pipe and pushes out the vascular stents at intervals through the inner pipe. According to the vascular stent conveying system, the catheter unit is provided with a specific barb structure, a direct pushing mode of the conveying system is changed into a reciprocating pushing mode, pushing stroke is short and not limited by the lengths of the vascular stents, the conveying system is operated by one hand conveniently and rapidly, the other hand can be released, only one hand is limited, other operations can be performed in the medical process, a reciprocating pushing mechanism is stable in pushing, conveying stability of the vascular stents is ensured, and smooth surgery is ensured.
Description
Technical field
The present invention relates to a kind of intravascular stent induction system and carrying method thereof, belong to minimally invasive medical technique with the apparatus field.
Background technology
Periphery vascular surgery is the method for traditional treatment periphery angiostenosis, and stent in the treatment method is compared to traditional periphery vascular surgery, it adopts Wicresoft's intervene operation wound of stent in the treatment little, few intercurrent disease, effective, become the main way for the treatment of periphery angiostenosis at present.
Intravascular stent is implanted in body and needs utilization induction system, in prior art, general hollow bowl and the outer tube adopting socket mutually, seal wire poling when the hollow bulb of interior pipe is convenient to perform the operation, intravascular stent is arranged between the inner and outer pipe sections; During operation, seal wire guides the conduit tube component of induction system to arrive operative site, and Control Component makes on rear side of outer tube, and its process medium vessels support launches and is formed at blood vessel.
Because the length of intravascular stent limits, cause the delivery stroke of induction system longer, the structure of induction system is restricted, and be not easy to the operation technique of medical personnel, need bimanualness, easily produce in the course of conveying of longer delivery stroke and tremble and offset, carry not steady, severe patient even can make intravascular stent produce skew, has influence on the normal progression of operation.
Summary of the invention
The object of the invention is to solve above-mentioned technical problem, propose a kind of intravascular stent induction system and carrying method thereof.
First object of the present invention, a kind of intravascular stent induction system, especially, comprises duct unit and conveyer device, and described duct unit is connected with conveyer device and is driven by described conveyer device,
Described duct unit comprises outer tube and is arranged at the interior pipe of described outer tube;
Described outer tube comprises an intravascular stent load region, and described intravascular stent to be arranged in described load region and between outer tube and interior pipe,
Described interior pipe comprises a hollow channel, passes for seal wire, and described seal wire guides described duct unit to enter operative region,
Described interior pipe is fixedly installed the agnail that is connected to described intravascular stent inner chamber, and described agnail is by justifying cover portion and elastic forms, and described elastic and described intravascular stent offset;
Described conveyer device comprises housing and is arranged in housing the reciprocal propulsive mechanism with linear shift reciprocately, described outer tube is connected with the end of housing, described interior pipe stretches into enclosure interior and is connected with reciprocal propulsive mechanism, and described seal wire stretches in the hollow channel of described interior pipe through housing.
Preferably, the elastic of described agnail is the elastic of half sector structure body.
Preferably, the elastic of described agnail is for being made up of two and half sector structure bodies and the apertured elastic of tool between two and half sector structure bodies.
Preferably, the elastic of described agnail is half sector structure body and the fan limit of half sector structure body has the elastic of plural teeth.
Preferably, the elastic of described agnail is half sector structure body and the sidewall of half sector structure body has the elastic leading tooth.
Preferably, the stage casing of described interior pipe has a metal section, and described agnail is fixedly installed on described metal section, and described metal section is provided with spiral intravascular stent gathering sill intravascular stent being carried out to guide effect.
Preferably, the end of described duct unit is provided with a tip head, and described tip head is connected with described interior pipe.
Preferably, described reciprocal propulsive mechanism is made up of guided way and slider, and described guided way is arranged at enclosure interior, and described housing is provided with the guide groove passed for slider, and described slider slides through guide groove and is arranged in the conduit of described guided way.
Preferably, be provided with silk guide passage in described housing, described silk guide passage is through housing and back and forth propulsive mechanism and interior pipe connect.
Second object of the present invention, a kind of carrying method of intravascular stent induction system, is characterized in that comprising the steps:
A. induction system gets involved step, and seal wire is through induction system, and guide catheter unit enters operative region;
B. interior pipe pushes step, and in reciprocal propulsive mechanism promotes, pipe stretches out, and the elastic of agnail supports intravascular stent and promotes intravascular stent and outer tube produces relative displacement, and intravascular stent stretches out the demi-inflation of outer tube;
C. interior pipe is pulled back step, and interior pipe retracts by reciprocal propulsive mechanism, and agnail replys position, geo-stationary between intravascular stent and outer tube;
D. discharge intravascular stent step completely, repeat step b and step c, make intravascular stent depart from outer tube, intravascular stent discharges completely.
Beneficial effect of the present invention is mainly reflected in:
1. duct unit adopts specific barb structure, and make the direct propulsion mode of induction system change into reciprocating propulsion mode, propelling stroke is short, and the length not by intravascular stent limits;
2. induction system is the operation of singlehanded formula, convenient and swift, can discharge an other hands, only singlehanded limited, can carry out other operations in medical procedure;
3. reciprocating type propelling mechanism advances steadily, guarantees the conveying stability of intravascular stent, ensures carrying out smoothly of operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of intravascular stent induction system of the present invention;
Fig. 2 is the structure for amplifying schematic diagram of A in Fig. 1;
Fig. 3 is the first structural representation of agnail in the present invention;
Fig. 4 is the second structural representation of agnail in the present invention;
Fig. 5 is the third structural representation of agnail in the present invention;
Fig. 6 is the 4th kind of structural representation of agnail in the present invention.
Detailed description of the invention
The invention provides a kind of intravascular stent induction system, as depicted in figs. 1 and 2, a kind of intravascular stent induction system, comprise duct unit and conveyer device, duct unit is connected with conveyer device and is driven by conveyer device, and wherein, duct unit comprises outer tube 1 and is arranged at the interior pipe 2 of outer tube 1 inside, the end of duct unit is provided with a tip head, and tip head is connected with interior pipe 2; Outer tube comprises an intravascular stent load region, intravascular stent to be arranged in load region and between outer tube and interior pipe, interior pipe 2 comprises a hollow channel, passes for seal wire, and seal wire guide catheter unit enters operative region, interior pipe 2 is fixedly installed the agnail 3 that is connected to intravascular stent inner chamber, agnail 3 is made up of circle cover portion 31 and elastic 32, and elastic 32 and intravascular stent offset, when agnail is released, elastic supports the grid of intravascular stent and expands, and is released by intravascular stent; When agnail retreats, the inwall that elastic prolongs intravascular stent back slides, and elastic is shunk, and to intravascular stent without pulling and supporting power, intravascular stent does not produce displacement; Conveyer device comprises housing 4 and is arranged in housing 4 the reciprocal propulsive mechanism 5 with linear shift reciprocately, outer tube 1 is connected with the end of housing 4, interior pipe 2 stretches into housing 4 inside and is connected with reciprocal propulsive mechanism 5, silk guide passage 6 is provided with in housing 4, silk guide passage 6 is through housing 4 and back and forth propulsive mechanism 5 and interior pipe 2 connect, seal wire stretches in the hollow channel of interior pipe 2 through silk guide passage 6, reciprocal propulsive mechanism 5 back and forth advances and back operation interior pipe 2, and intravascular stent is released by the agnail 3 of interior pipe 2.
Be illustrated in figure 3 the first structure of agnail in the present invention, the elastic of agnail is the elastic of half sector structure body, refinement, half sector structure body forms for being rolled by fanning strip face, turnup edge is not closed, and dual-side is along being positioned at same plane, and the top of half sector structure body is arc-shaped.
The elastic of agnail also has other and optimizes structure in addition, when agnail 3 advances, the resist force of elastic and intravascular stent can be increased, be illustrated in figure 4 the second structure of agnail in the present invention, the elastic of agnail 3 is for being made up of two and half sector structure bodies and the apertured elastic of tool between two and half sector structure bodies, the elastic of two and half sector structure bodies and intravascular stent contact area are larger, and resist force is also larger.Be illustrated in figure 5 the third structure of agnail in the present invention, the elastic of agnail is half sector structure body and the fan limit of half sector structure body has the elastic of plural teeth 7, and the cross-under of sawtooth energy enters in the grid of intravascular stent, pushes away the power of holding larger.Be illustrated in figure 6 the 4th kind of structure of agnail in the present invention, the elastic of agnail is half sector structure body and the sidewall of half sector structure body all has the elastic that at least one leads tooth 8, the elastic of design like this and intravascular stent have two-stage and push away junction, push away hold more stable.
Further optimization this programme, the stage casing of interior pipe 2 has a metal section 21, and agnail 3 is fixedly installed on metal section 21, and agnail is fixing comparatively convenient on metal section, and fixation, stability is superior.Metal section 21 is provided with spiral intravascular stent gathering sill intravascular stent being carried out to guide effect, and gathering sill is convenient to the release of intravascular stent, has certain guide effect to intravascular stent, prevents intravascular stent from expanding and produces rotation displacement.
Refinement description is carried out to reciprocal propulsive mechanism, reciprocal propulsive mechanism 5 is made up of guided way 51 and slider 52, it is inner that guided way 51 is arranged at housing 4, housing 4 is provided with the guide groove passed for slider 52, slider 52 slides through guide groove and is arranged in the conduit of guided way 51, being slided in guided way 51 by slider 52 to drive interior pipe to stretch, thus reaches the effect releasing intravascular stent.
Below concrete operation step and the relative theory of the carrying method of a kind of intravascular stent induction system of the present invention:
A. induction system gets involved step, and after seal wire arranges and puts in place, induction system is accessed seal wire, and seal wire guide catheter unit enters operative region;
B. interior pipe pushes step, in reciprocal propulsive mechanism promotes, pipe stretches out, the elastic of agnail supports intravascular stent and promotes intravascular stent and outer tube produces relative displacement, therebetween, elastic supports the grid of intravascular stent and expands, elastic advances and is released by intravascular stent simultaneously, and intravascular stent stretches out the demi-inflation of outer tube, and intravascular stent part is launched and is formed at blood vessel;
C. interior pipe is pulled back step, and interior pipe retracts by reciprocal propulsive mechanism, and agnail replys position and agnail retreats, the inwall that elastic prolongs intravascular stent back slides, and elastic is shunk, to intravascular stent without pulling and supporting power, intravascular stent does not produce displacement, geo-stationary between intravascular stent and outer tube;
D. discharge intravascular stent step completely, repeat step b and step c, intravascular stent intermittent released in agnail telescopic process and depart from outer tube, intravascular stent discharges completely, and now intravascular stent launches completely and is formed at blood vessel.
The present invention still has numerous embodiments, all employing equivalents or equivalent transformation and all technical schemes formed, and all drops within protection scope of the present invention.
Claims (10)
1. an intravascular stent induction system, is characterized in that: comprise duct unit and conveyer device, and described duct unit is connected with conveyer device and is driven by described conveyer device,
Described duct unit comprises outer tube and is arranged at the interior pipe of described outer tube;
Described outer tube comprises an intravascular stent load region, and described intravascular stent to be arranged in described load region and between outer tube and interior pipe,
Described interior pipe comprises a hollow channel, passes for seal wire, and described seal wire guides described duct unit to enter operative region,
Described interior pipe is fixedly installed the agnail that is connected to described intravascular stent inner chamber, and described agnail is by justifying cover portion and elastic forms, and described elastic and described intravascular stent offset;
Described conveyer device comprises housing and is arranged in housing the reciprocal propulsive mechanism with linear shift reciprocately, described outer tube is connected with the end of housing, described interior pipe stretches into enclosure interior and is connected with reciprocal propulsive mechanism, and described seal wire stretches in the hollow channel of described interior pipe through housing.
2. a kind of intravascular stent induction system according to claim 1, is characterized in that: the elastic of described agnail is the elastic of half sector structure body.
3. a kind of intravascular stent induction system according to claim 1, is characterized in that: the elastic of described agnail is for being made up of two and half sector structure bodies and the apertured elastic of tool between two and half sector structure bodies.
4. a kind of intravascular stent induction system according to claim 1, is characterized in that: the elastic of described agnail is half sector structure body and the fan limit of half sector structure body has the elastic of plural teeth.
5. a kind of intravascular stent induction system according to claim 1, is characterized in that: the elastic of described agnail is half sector structure body and the sidewall of half sector structure body has the elastic leading tooth.
6. a kind of intravascular stent induction system according to claim 1 to 5 any one, it is characterized in that: the stage casing of described interior pipe has a metal section, described agnail is fixedly installed on described metal section, and described metal section is provided with spiral intravascular stent gathering sill intravascular stent being carried out to guide effect.
7. a kind of intravascular stent induction system according to claim 1 to 5 any one, is characterized in that: the end of described duct unit is provided with a tip head, and described tip head is connected with described interior pipe.
8. a kind of intravascular stent induction system according to claim 1, it is characterized in that: described reciprocal propulsive mechanism is made up of guided way and slider, described guided way is arranged at enclosure interior, described housing is provided with the guide groove passed for slider, and described slider slides through guide groove and is arranged in the conduit of described guided way.
9. a kind of intravascular stent induction system according to claim 1, is characterized in that: be provided with silk guide passage in described housing, and described silk guide passage is through housing and back and forth propulsive mechanism and interior pipe connect.
10., based on a carrying method for a kind of intravascular stent induction system described in claim 1 to 9 any one, it is characterized in that comprising the steps:
A. induction system gets involved step, and seal wire is through induction system, and guide catheter unit enters operative region;
B. interior pipe pushes step, and in reciprocal propulsive mechanism promotes, pipe stretches out, and the elastic of agnail supports intravascular stent and promotes intravascular stent and outer tube produces relative displacement, and intravascular stent stretches out the demi-inflation of outer tube;
C. interior pipe is pulled back step, and interior pipe retracts by reciprocal propulsive mechanism, and agnail replys position, geo-stationary between intravascular stent and outer tube;
D. discharge intravascular stent step completely, repeat step b and step c, make intravascular stent depart from outer tube, intravascular stent discharges completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510000749.0A CN104546246A (en) | 2015-01-04 | 2015-01-04 | Vascular stent conveying system and conveying method thereof |
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| CN201510000749.0A CN104546246A (en) | 2015-01-04 | 2015-01-04 | Vascular stent conveying system and conveying method thereof |
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| CN104546246A true CN104546246A (en) | 2015-04-29 |
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| CN201510000749.0A Pending CN104546246A (en) | 2015-01-04 | 2015-01-04 | Vascular stent conveying system and conveying method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264807A (en) * | 2016-08-16 | 2017-01-04 | 常州乐奥医疗科技股份有限公司 | A kind of intravascular stent induction system |
| CN106691649A (en) * | 2017-01-22 | 2017-05-24 | 常州乐奥医疗科技股份有限公司 | One-handed knitted intravascular stent conveying system and using method thereof |
| CN107280831A (en) * | 2016-04-12 | 2017-10-24 | 苏州茵络医疗器械有限公司 | Intravascular stent induction system and its conduit tube component |
| CN107518968A (en) * | 2016-12-28 | 2017-12-29 | 苏州茵络医疗器械有限公司 | Self-expanding stent induction system and its gear drive component |
| WO2018120750A1 (en) * | 2016-12-28 | 2018-07-05 | 苏州茵络医疗器械有限公司 | Self-expanding stent delivery system and related components thereof |
| CN108245291A (en) * | 2016-12-28 | 2018-07-06 | 苏州茵络医疗器械有限公司 | Self-expanding stent transport system and its conduit tube component |
| CN109303629A (en) * | 2018-10-22 | 2019-02-05 | 中国人民解放军陆军军医大学第附属医院 | A kind of 3D printing blood vessel bracket conveyer |
| CN111407416A (en) * | 2020-04-03 | 2020-07-14 | 天津理工大学 | Tremor elimination method and system for vascular intervention surgical robot system |
| US11116651B2 (en) | 2016-04-12 | 2021-09-14 | Suzhou Innomed Medical Device Co., Ltd | Vascular stent delivery system and tubing assembly thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11116651B2 (en) | 2016-04-12 | 2021-09-14 | Suzhou Innomed Medical Device Co., Ltd | Vascular stent delivery system and tubing assembly thereof |
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| CN106691649A (en) * | 2017-01-22 | 2017-05-24 | 常州乐奥医疗科技股份有限公司 | One-handed knitted intravascular stent conveying system and using method thereof |
| CN109303629A (en) * | 2018-10-22 | 2019-02-05 | 中国人民解放军陆军军医大学第附属医院 | A kind of 3D printing blood vessel bracket conveyer |
| CN109303629B (en) * | 2018-10-22 | 2023-11-28 | 中国人民解放军陆军军医大学第一附属医院 | 3D prints vascular stent conveyer |
| CN111407416A (en) * | 2020-04-03 | 2020-07-14 | 天津理工大学 | Tremor elimination method and system for vascular intervention surgical robot system |
| CN111407416B (en) * | 2020-04-03 | 2021-02-26 | 天津理工大学 | Tremor elimination method and system for vascular intervention surgical robot system |
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