CN101822868A - Medical stent type supporting balloon and water injection type covered stent - Google Patents
Medical stent type supporting balloon and water injection type covered stent Download PDFInfo
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- CN101822868A CN101822868A CN200910105877A CN200910105877A CN101822868A CN 101822868 A CN101822868 A CN 101822868A CN 200910105877 A CN200910105877 A CN 200910105877A CN 200910105877 A CN200910105877 A CN 200910105877A CN 101822868 A CN101822868 A CN 101822868A
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Abstract
The invention discloses a medical stent type supporting balloon and a covered stent. The medical stent type supporting balloon comprises a flexible cavity body and a closed pipeline, wherein an operating passage is arranged in the cavity body; the closed pipeline is arranged on the cavity body, the closed pipeline at least respectively extends for a distance on the cavity body along the circumferential direction and the axial direction of the operating passage and at least comprises a gas or liquid injecting opening, and after gas or liquid is injected into the closed pipeline via the injecting opening, expansionary force is generated in the circumferential direction and the axial direction of the operating passage of the cavity body, so the cavity body opens to form the operating passage. The invention can form effective support in the operating passage in the human body established for an operation, and simultaneously effectively avoids the damage on internal tissues and avoids the occurrence of discomfort. The invention also can be used as a water injection type covered stent, provides support in tumor neck remodeling operation in a blood vessel stenosis molding operation or a broad carotid aneurysm embolization operation and keeps the unobstructed flow of parent artery blood.
Description
Technical field
The present invention relates to a kind of armarium, particularly relate to a kind of medical stent-type and support sacculus and water injection type covered stnet.
Background technology
Medical Technology development at present can adopt various advanced persons' Medical Technology that patient's disease is treated rapidly.Wherein, employing operative treatment mode can fast and effeciently be treated the focus among the patient body, and generally needs in the operation to adopt corresponding armarium provide the equipment support for operation.
When people's internal lesions is undergone surgery, generally need at first set up a operating walk way, described focus be operated so that apparatus stretches in the described passage from external to internal lesions.The foundation of described passage can adopt special-purpose armarium to finish, such as some surgery brain endoscopies, conchoscope, hysteroscope etc.Described brain endoscope, conchoscope, hysteroscope are the effective tools of deep pathological changes in the present human body, but its shortcoming be operating theater instruments need by the narrow service aisle on the sight glass mirror sheath (＜2mm), the surgical apparatus costliness, waste time and energy in the middle of the use, the visual field is narrow and small, the operative indication scope is narrow, is difficult to clinical popularizing.
The foundation of described operating walk way can also adopt additive method to finish, such as forming occasional passage external between the internal lesions earlier, insert rigid pipe then in described occasional passage, by the outer tissue of described rigid pipe stay pipe, the pipe internal channel is then as the operating walk way of operating theater instruments.But described rigid pipe is too hard, in the tissue of tender and lovely rapid wear, damages these tissues easily in stretching into intravital process or outside the stay pipe, causes wound place wound unnecessarily to enlarge; Iatrogenic wound increases or causes patient's discomfort to increase.
And, the rigid pipe fixed diameter, and the operating walk way size in the operation varies with each individual, and needs to prepare the different rigid pipe of many specifications; Need adjust at any time in the occasion of operating walk way size, shape, angle when simultaneously, existing rigid pipe also is difficult to be applied to operation.
In addition, in the related surgical treatment field for the human organ pipeline, the Therapeutic Method such as the reply vascular conditions can adopt the balloon expandable of narrow blood vessel and metal rack to insert means, can fast and effeciently treat the patient's blood vessel disease, as angiostenosis, aneurysm thromboembolism etc.
Again such as the Therapeutic Method of the wide carotid aneurysm of reply, can adopt sacculus to carry out at the lesions position of blood vessel that the tumor neck is reinvented, the filling of tumor chamber.Promptly deviate to adopt sacculus to carry out shutoff for the prevention packing material by the tumor chamber in the middle of the operation.But after the angiostenosis place carried out balloon expandable, acute phase of disease may cause that elasticity of blood vessels retraction, vasospasm, blood vessel wall are hemorrhage, interlayer, inner membrance are torn etc. and cause the acute obturation of blood vessel.
Therefore, tackle wide carotid aneurysm, it is conventional at present the selection that support is inserted, and promptly puts into support in blood vessel, clogs then in the neoplastic cavity of tremulous pulse; And in the narrow operation of arteriosclerosis, be narrow blood vessel to be expanded the permanent then metal rack of inserting with dilating sacculus earlier.But metal rack is inserted the drawback that can't avoid metal rack itself, after inserting human vas as metal rack, though can open the lesion blood vessel rapidly, but also caused chronic injury and mechanical irritation simultaneously, caused neointimal hyperplasia, vascular restenosis and length to need the phase to take problems such as anticoagulant antiplatelet drug blood vessel.Wherein, in about 25%～35% patient 3～6 months after metal rack is inserted vascular restenosis can take place, most blood vessels need carry out the vascular bypass art, and the problem that causes by inserting support becomes clinical problem demanding prompt solution at present.
In addition, above-mentioned prior art dilating sacculus, metal rack are inserted the almost whole dependence on import of required consumptive material, cost an arm and a leg, and expense is far from China's general patient and can accepts.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of medical stent-type and supports sacculus and water injection type covered stnet, can conveniently enter in the organism in-vivo tissue is effectively supported, and effectively avoids damaging in-vivo tissue and avoiding producing discomfort simultaneously.
The technical problem that the present invention mainly solves is that a kind of water injection type covered stnet also is provided, and can make things convenient for intravasation effectively to support under the situation of blocking blood flow not, can treat simultaneously to withdraw from after the blood vessel elasticity retraction disappears, and substitutes and forever inserts.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of medical stent-type to support sacculus, comprising: flexible cavity is provided with operating walk way in the described cavity; Be arranged at the closed conduct on the described cavity, described closed conduct extends a segment distance along the circumferencial direction of described cavity at least, and comprise gas or liquid injection port at least, after described closed conduct is by described inlet injecting gas or liquid, circumferencial direction at described cavity produces expansionary force, described cavity is opened form described operating walk way.
In the more excellent embodiment, described closed conduct also extends a segment distance along the axial direction of described cavity, and after described closed conduct is by described inlet injecting gas or liquid, at the axial generation expansionary force of described cavity.
In the more excellent embodiment, described closed conduct is in described cavity upper edge operating walk way spiral or netted setting, and arrives described operating walk way two ends.
In the more excellent embodiment, described closed conduct is arranged in the described cavity or chamber outer wall.
In the more excellent embodiment, the gas of described closed conduct or liquid injection port are positioned at described operating walk way one end, and outwards draw from described cavity.
In the more excellent embodiment, described closed conduct is netted setting on the wall of described chamber.
In the more excellent embodiment, described cavity comprises medical macromolecular materials.
In the more excellent embodiment, further comprise the support seal wire that passes described operating walk way, have the water stream channel of laying along described guide wire on the described support seal wire, the gas of closed conduct or liquid injection port are connected on described water stream channel and the described cavity.
For solving the problems of the technologies described above, another technical solution used in the present invention is: a kind of water injection type covered stnet is provided, comprises: flexible cavity is provided with the channel of blood flow of both ends open in the described cavity; Be arranged at the closed conduct on the described cavity, described closed conduct extends a segment distance along the circumferencial direction of described cavity at least, and comprise a liquid injection port at least, after described closed conduct is by described inlet water filling, circumferencial direction at described cavity produces expansionary force, described cavity is opened form described channel of blood flow; Pass the support seal wire of described channel of blood flow, have the water stream channel of laying along described guide wire on the described support seal wire, the liquid injection port of closed conduct is connected described closed conduct and is extended a segment distance along the circumferencial direction of described cavity at least on described water stream channel and the described cavity.
In the more excellent embodiment, described closed conduct also extends a segment distance along the axial direction of described cavity, and after water being injected described closed conduct by described water stream channel, at the axial generation expansionary force of described cavity, make described flexible cavity diameter and length reach 2～6 millimeters and 1～3 centimetre respectively.
The invention has the beneficial effects as follows:
Be different from prior art and form the rigid pipe of operation technique passage in stretching into intravital process, or cause damage the outer tender and lovely rapid wear in-vivo tissue of stay pipe the time easily, the problem that wound place wound unnecessarily enlarges and the person's of undergoing surgery discomfort increases, the present invention is by providing a kind of flexible cavity, and the mode of closed conduct is set within it, described closed conduct be can fill in use or portion gas or liquid injected, and then produce expansionary force at the circumferencial direction of described cavity, form described operating walk way thereby described cavity is opened, convenient described support sacculus enters in the organism in-vivo tissue is effectively supported; Simultaneously, Rou Xing cavity can effectively be avoided damaging in-vivo tissue and avoid producing discomfort; Again and, the rate of expansion of cavity can be controlled by gas or liquid injection rate, also can effectively avoid damaging in-vivo tissue and avoid producing discomfort, and the extend sizes that can come control chamber in-vivo procedures passage by the injection rate of control gas or liquid, or select the different size cavity for use, need adjust the occasion of operating walk way size, shape, angle when being applicable to operation at any time, cost is low, and convenient greatly carrying out of performing the operation, improve the success rate of some high accuracy operations.
The present invention can also be used as the water injection type covered stnet, the tumor neck is reinvented in the operation and can conveniently be carried out tubular support in the blood vessel under the situation of blocking blood flow not in the narrow operation of arteriosclerosis or in wide carotid aneurysm thromboembolism, can treat simultaneously to withdraw from after the blood vessel elasticity retraction disappears, substitute and forever insert.Be about to when not influencing blood flow, to keep shape of blood vessel after water injection type covered stnet of the present invention is inserted in the blood vessel, metal rack behind alternative traditional balloon expandable is forever inserted, avoid taking for a long time neointimal hyperplasia in antiplatelet drug and the support, narrow once more, and can control the pressure of chamber outer wall by the injection rate of controlling liquid to blood vessel wall, anti-hemostatic tube is bursting at the collision and splits, need adjust the occasion of sacculus support size when being applicable to operation at any time, cost is low, and convenient greatly carrying out of performing the operation, prolong the operation operable time, reduce because the thrombosis that blocking blood flow causes, avoid causing the distal vessels infraction, improve the success rate of some high accuracy operations.
Description of drawings
Fig. 1 is the schematic perspective view that the medical stent-type of the present invention supports sacculus first embodiment;
Fig. 2 is the schematic cross-section that the medical stent-type of the present invention supports sacculus first embodiment;
Fig. 3 is the generalized section of A-A ' direction among Fig. 2;
Fig. 4 is the sketch map that water injection type covered stnet first embodiment of the present invention is applied to bifurcation structure parent artery pipe;
Fig. 5 is the sketch map that water injection type covered stnet second embodiment of the present invention is applied to lateral wall type structure parent artery pipe.
The specific embodiment
Seeing also Fig. 1, is the schematic perspective view that the medical stent-type of the present invention supports sacculus first embodiment.Described medical stent-type supports sacculus and comprises:
Be arranged at the closed conduct 130 on the described cavity 110;
Consult Fig. 2 together, described closed conduct 130 is at least along the circumferencial direction of described cavity 110 and axially extension respectively, and comprise gas or liquid injection port 140, after described closed conduct 130 is by described inlet 140 injecting gas or liquid, circumferencial direction and the axial expansionary force that produces at described cavity 110 open described cavity 110 and form described operating walk way 120.
In actual use, the medical stent-type support of the present invention sacculus can use by the auxiliary expanding sacculus.Described dilating sacculus is attached on the conduit, and conduit is hollow shaft-like, can pass through the coaxial stents seal wire.The medical stent-type of the present invention supports sacculus at full back and the same diameter of described dilating sacculus, can be presented to dilating sacculus and expand the operation path that, becomes tubbiness after filling, and has enough support forces and good adherent property.
Above embodiment of the present invention, be by a kind of flexible cavity 110 is provided, and the mode of closed conduct 130 is set within it, described closed conduct 130 be can fill in use or portion gas or liquid injected, and then at described operating walk way 120 circumferencial directions and the axial expansionary force that produces, form described operating walk way 120 thereby described cavity 110 is opened, convenient described support sacculus enters in the organism in-vivo tissue is effectively supported;
Simultaneously, flexible cavity 110 can effectively be avoided damaging in-vivo tissue and avoid producing discomfort, is particularly suitable for the foundation of the operation technique passage of soft tissue;
Again and, the rate of expansion of cavity 110 can be controlled by gas or liquid injection rate, also can effectively avoid damaging in-vivo tissue and avoid producing discomfort, and can control the extend sizes of operating walk way 120 in the cavity 110 by the injection rate of control gas or liquid, or select the different size cavity for use, need adjust the occasion of operating walk way 120 sizes, shape, angle when being applicable to operation at any time, cost is low, and convenient greatly carrying out of performing the operation, improve the success rate of some high accuracy operations.
The length of described closed conduct 130 and the layout on cavity 110 can have multiple choices, include but not limited at described cavity 110 upper edge operating walk ways, 120 circumferencial directions and axially extend a segment distance respectively, with at described operating walk way 120 circumferencial directions and the axial tension force that produces, described cavity 110 is opened form the described operating walk way 120 that medical apparatus and instruments enters that is beneficial to.
Certainly, described closed conduct 130 can only extend a segment distance even be covered with whole cavity 110 at the circumferencial direction of cavity 110 by actual needs, or extending axially a segment distance even being covered with whole cavity 110 at cavity 110 only.
As shown in Figure 1, described closed conduct 130 can be along operating walk way 120 spiral settings on described cavity 110, and arrive described operating walk way 120 two ends.As shown in Figure 3, described closed conduct 130 can be arranged in the described cavity 110.
Again as shown in Figure 2, the gas of described closed conduct 130 or liquid injection port 140 are positioned at described operating walk way 120 1 ends, and outwards draw from described cavity 110.
In more embodiments, described closed conduct 130 can be netted setting on the wall of described chamber, but is not limited to netted or helical form.
Described flexible cavity 110 can adopt PVC material, Polyurethane Thermoplastic Elastomer (TPU), be polyethylene (PE), polyethylene terephthalate (PET) or silica gel material, certainly, also can adopt other medical macromolecular materials to make.
Described support inflated or inject liquid after, the cavity 110 after opening be the cylindrical structure of both ends open, certainly, also can be for other shapes, such as ellipse, hexagon, the tubbiness of bending etc.
Below lift object lesson explanation again:
With the brain endoscopic surgery is example, selects nonfunctional area in the middle of operation, adopts brain pin puncture lesions position, after determining to arrive target site, withdraws from nook closing member, imports guiding wire, and front end is softish coil structures, can not cause damage to cerebral tissue.The rear portion is the hard steel wire, can bending, on scale is arranged.
After withdrawing from the brain pin, the coaxial dilator of sending into, this dilator is for omiting the sharp-blunt point elongated rod shape, and material is a duroplasts, and smooth surface has scale above, 3 millimeters of diameter of sections.Dilator has 3 millimeters ducts after cerebral tissue is expanded approximately.
Can adopt Sai Dingge technology (Seldinger technique) that dilating sacculus is presented to described duct then, slowly expand,, set up the circular or oval operation path of about 2 cm diameters up to arriving predetermined pressure by the rotary pressure pump.Withdraw from dilating sacculus subsequently, use transparent support sacculus of the present invention instead and keep this operation path.Specifically be to adopt air pump or water pump to pass through the inlet 140 of closed conduct 130 to closed conduct 130 injecting gas or liquid, such as water.Make the closed conduct 130 of described support sacculus produce pressure, and then at operating walk way 120 circumferencial directions and the axial expansionary force that produces, it is cylindric that cavity 110 is kept.Like this, the sidewall of this cylinder is made of the trachea or the water channel of ring seal, and keeps the preformed shape of support air bag.
In operation process, can control the extend sizes of operating walk way 120 in the cavity 110 by the injection rate of control gas or liquid, need adjust the occasion of operating walk way 120 sizes when being applicable to operation at any time, convenient operation carries out greatly, improve operation efficient, improve the success rate of some high accuracy, high risk operation.
Lift an example explanation again: in hysteroscope operation,, need usually to use the expansion metal rod, cause damage easily because cervical orifice is narrow.After slowly resisting the cervix uteri muscle tone with dilating sacculus, expand operation path, use transparent support sacculus of the present invention then instead and keep this operation path, can simultaneously scope and multiple operating theater instruments be carried out the complicated operation operation by this passage.
In addition, the present invention also provides a kind of water injection type covered stnet.Consult Fig. 4, described water injection type covered stnet comprises:
The closed conduct that is arranged on the described cavity 410 (schemes not show, can see figures.1.and.2), described closed conduct extends a segment distance along the circumferencial direction of described cavity at least, and comprise a liquid injection port (figure does not show) at least, after described closed conduct is by described inlet water filling, circumferencial direction at described cavity produces expansionary force, described cavity is opened form described channel of blood flow 420;
Pass the support seal wire 450 of described channel of blood flow 420, have the water stream channel of laying along described guide wire 451 on the described support seal wire 450, the liquid injection port of closed conduct is connected on described water stream channel 451 and the described cavity 410.
In other embodiment, described closed conduct can also extend a segment distance along the axial direction of described cavity 410, and after water being injected described closed conduct by described water stream channel 451, axially produce expansionary force at described cavity 410, make described flexible cavity 410 diameters and length reach 2～6 millimeters and 1～3 centimetre respectively.
Corresponding above-mentioned water injection type covered stnet technical scheme, also lift object lesson explanation below:
Continue to consult Fig. 4, with the operation of heart coronary stenosis support is example, in the middle of operation, select the dilating sacculus close expansion in advance with the parent artery caliber, by coaxial seal wire dilating sacculus is presented to described narrow blood vessel 460, slowly expand by the rotary pressure pump, up to arriving predetermined pressure, eliminate angiostenosis.Arrow among the figure is a blood flow direction, and the blood flow that can not block blood vessel when utilizing water injection type covered stnet of the present invention to carry out vasodilation is described, makes blood keep unimpeded in operation process, and dilating sacculus can stop up blood vessel 460 other road tumor body cavitys 470.Withdraw from dilating sacculus subsequently, use the transparent water injection type covered stnet of the present invention instead and keep this shape of blood vessel.Specifically be adopt air pump or water pump by support seal wire 450 to the inlet of closed conduct to the closed conduct water filling.Make the closed conduct of described support produce pressure, and then at channel of blood flow 420 circumferencial directions and the axial expansionary force that produces, it is cylindric that cavity 410 is kept, in operation process, can control the extend sizes of cavity 410 by the injection rate of control water, need adjust the occasion of support size when being applicable to operation at any time, convenient operation carries out greatly, improve operation efficient, improve the success rate of some high accuracy, high risk operation.
Such as consulting Fig. 5, the present invention can use lateral wall type structure parent artery pipe field again, and cavity 510 can stop up blood vessel 560 bypass tumor body cavitys 570.And cavity stops up tumor body cavity 570 openings in blood vessels, does not allow wadding come out.Like this, the sidewall of this cylinder is made of the ring seal water channel, and keeps the preformed shape of support.Simultaneously, water injection type covered stnet of the present invention has channel of blood flow after expansion, and arrow is a blood flow direction among the figure, can not influence the circulation of blood in operation or after the operation, can not impact surgical object substantially.
This sacculus can be called the microsphere capsule, about 2～6 mm dias, and length does not wait for 1～3 centimetre.
The present invention can also be applied in the more areas, such as be applied in the intestinal, in the esophagus, in the cervix uteri etc.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent 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 fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. a medical stent-type supports sacculus, it is characterized in that, comprising:
Flexible cavity is provided with operating walk way in the described cavity;
Be arranged at the closed conduct on the described cavity, described closed conduct extends a segment distance along the circumferencial direction of described cavity at least, and comprise gas or liquid injection port at least, after described closed conduct is by described inlet injecting gas or liquid, circumferencial direction at described cavity produces expansionary force, described cavity is opened form described operating walk way.
2. medical stent-type according to claim 1 supports sacculus, it is characterized in that: described closed conduct also extends a segment distance along the axial direction of described cavity, and after described closed conduct is by described inlet injecting gas or liquid, at the axial generation expansionary force of described cavity.
3. medical stent-type according to claim 2 supports sacculus, it is characterized in that: described closed conduct is in described cavity upper edge operating walk way spiral or netted setting, and arrives described operating walk way two ends.
4. support sacculus according to each described medical stent-type of claim 1 to 3, it is characterized in that: described closed conduct is arranged in the described cavity or chamber outer wall.
5. medical stent-type according to claim 4 supports sacculus, and it is characterized in that: the gas of described closed conduct or liquid injection port are positioned at described operating walk way one end, and outwards draw from described cavity.
6. support sacculus according to each described medical stent-type of claim 1 to 3, it is characterized in that: described closed conduct is netted setting on the wall of described chamber.
7. support sacculus according to each described medical stent-type of claim 1 to 3, it is characterized in that: described cavity comprises medical macromolecular materials.
8. support sacculus according to each described medical stent-type of claim 1 to 3, it is characterized in that: further comprise the support seal wire that passes described operating walk way, have the water stream channel of laying along described guide wire on the described support seal wire, the gas of closed conduct or liquid injection port are connected on described water stream channel and the described cavity.
9. a water injection type covered stnet is characterized in that, comprising:
Flexible cavity is provided with the channel of blood flow of both ends open in the described cavity;
Be arranged at the closed conduct on the described cavity, described closed conduct extends a segment distance along the circumferencial direction of described cavity at least, and comprise a liquid injection port at least, after described closed conduct is by described inlet water filling, operating walk way circumferencial direction and the axial expansionary force that produces at described cavity open described cavity and form described channel of blood flow;
Pass the support seal wire of described channel of blood flow, have the water stream channel of laying along described guide wire on the described support seal wire, the liquid injection port of closed conduct is connected on described water stream channel and the described cavity.
10. water injection type covered stnet according to claim 9, it is characterized in that: described closed conduct also extends a segment distance at described cavity upper edge channel of blood flow axial direction, and after water being injected described closed conduct by described water stream channel, at the axial generation expansionary force of described cavity, make described flexible cavity diameter and length reach 2～6 millimeters and 1～3 centimetre respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910105877A CN101822868A (en) | 2009-03-03 | 2009-03-03 | Medical stent type supporting balloon and water injection type covered stent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910105877A CN101822868A (en) | 2009-03-03 | 2009-03-03 | Medical stent type supporting balloon and water injection type covered stent |
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| CN101822868A true CN101822868A (en) | 2010-09-08 |
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| CN200910105877A Pending CN101822868A (en) | 2009-03-03 | 2009-03-03 | Medical stent type supporting balloon and water injection type covered stent |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104013481A (en) * | 2013-03-03 | 2014-09-03 | 王光强 | Sacculus support for tracheal stenosis patient |
| CN107669379A (en) * | 2017-11-08 | 2018-02-09 | 柏文有限责任公司 | Medical rack |
| CN109199601A (en) * | 2018-10-22 | 2019-01-15 | 郑州大学第附属医院 | Organ support device under laparoscope |
| CN109640892A (en) * | 2016-05-25 | 2019-04-16 | W.L.戈尔及同仁股份有限公司 | Controlled built-in prothesis balloon expandable |
| CN110831550A (en) * | 2017-07-07 | 2020-02-21 | 株式会社钟化 | Tubular medical instrument and tubular medical instrument transport device |
| 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 |
| US11103372B2 (en) | 2008-01-11 | 2021-08-31 | W. L. Gore & Associates, Inc. | Stent having adjacent elements connected by flexible webs |
| CN113599019A (en) * | 2021-09-30 | 2021-11-05 | 江苏伊凯医疗器械有限公司 | Anti-backflow bracket for esophagus |
| US11285029B2 (en) | 2014-11-26 | 2022-03-29 | W. L. Gore & Associates, Inc. | Balloon expandable endoprosthesis |
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2009
- 2009-03-03 CN CN200910105877A patent/CN101822868A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11103372B2 (en) | 2008-01-11 | 2021-08-31 | W. L. Gore & Associates, Inc. | Stent having adjacent elements connected by flexible webs |
| US11865020B2 (en) | 2008-01-11 | 2024-01-09 | W. L. Gore & Associates, Inc. | Stent having adjacent elements connected by flexible webs |
| CN104013481A (en) * | 2013-03-03 | 2014-09-03 | 王光强 | Sacculus support for tracheal stenosis patient |
| US11285029B2 (en) | 2014-11-26 | 2022-03-29 | W. L. Gore & Associates, Inc. | Balloon expandable endoprosthesis |
| US11857444B2 (en) | 2014-11-26 | 2024-01-02 | W. L. Gore & Associates, Inc. | Balloon expandable endoprosthesis |
| CN109640892A (en) * | 2016-05-25 | 2019-04-16 | W.L.戈尔及同仁股份有限公司 | Controlled built-in prothesis balloon expandable |
| US11779481B2 (en) | 2016-05-25 | 2023-10-10 | W. L. Gore & Associates, Inc. | Controlled endoprosthesis balloon expansion |
| CN110831550A (en) * | 2017-07-07 | 2020-02-21 | 株式会社钟化 | Tubular medical instrument and tubular medical instrument transport device |
| CN107669379A (en) * | 2017-11-08 | 2018-02-09 | 柏文有限责任公司 | Medical rack |
| CN109199601A (en) * | 2018-10-22 | 2019-01-15 | 郑州大学第附属医院 | Organ support device under laparoscope |
| 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 |
| 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 |
| CN113599019A (en) * | 2021-09-30 | 2021-11-05 | 江苏伊凯医疗器械有限公司 | Anti-backflow bracket for esophagus |
| CN113599019B (en) * | 2021-09-30 | 2021-12-07 | 江苏伊凯医疗器械有限公司 | Anti-backflow bracket for esophagus |
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Application publication date: 20100908 |