CN201279337Y - Saccule expansion conduit - Google Patents
Saccule expansion conduit Download PDFInfo
- Publication number
- CN201279337Y CN201279337Y CNU200820058615XU CN200820058615U CN201279337Y CN 201279337 Y CN201279337 Y CN 201279337Y CN U200820058615X U CNU200820058615X U CN U200820058615XU CN 200820058615 U CN200820058615 U CN 200820058615U CN 201279337 Y CN201279337 Y CN 201279337Y
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- CN
- China
- Prior art keywords
- pipeline section
- end pipeline
- dilating catheter
- sacculus dilating
- far
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000005077 saccule Anatomy 0.000 title 1
- 230000000916 dilatatory effect Effects 0.000 claims description 45
- 238000004891 communication Methods 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 4
- 210000004204 blood vessel Anatomy 0.000 description 11
- 239000004952 Polyamide Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 229920002647 polyamide Polymers 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 229920002614 Polyether block amide Polymers 0.000 description 4
- 210000000709 aorta Anatomy 0.000 description 4
- 229920001400 block copolymer Polymers 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229920000570 polyether Polymers 0.000 description 4
- -1 polytetrafluoroethylene Polymers 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000002792 vascular Effects 0.000 description 3
- 230000017531 blood circulation Effects 0.000 description 2
- 238000002059 diagnostic imaging Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000002439 hemostatic effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002583 angiography Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 210000004351 coronary vessel Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a balloon dilatation tube, comprising a proximal tube segment, a distal tube segment and an inflatable balloon, which are communicated sequentially. The tail end of the proximal tube segment is arranged in the distal tube segment; and the part of the proximal tube segment, which is arranged in the distal tube segment, comprises a slope part positioned at the tail end and a spiral part bordering upon the slope part. The slope part tapers towards the tail end, and the spiral part is provided with a spiral through groove which runs through the wall of the tube. The thread pitch of the spiral through groove declines gradually along the direction of the part close to the slope part. Therefore, the distal tube segment close to the outlet of a lead channel can be supported by the slope part. The thread pitch of the spiral part declines gradually and the hardness of the tube changes gradually, thus effectively preventing the tube from knotting or bending, so the propulsion force can be smoothly transferred.
Description
Technical field
This utility model relates to a kind of endovascular stent conveyer device, particularly a kind of sacculus dilating catheter with flexible transition structure.
Background technology
Sacculus dilating catheter is a kind of medical apparatus and instruments that is used for blood vessel internal shaping art, has been widely used in the interventional therapy of disease in polytype blood vessel at present, such as the percutaneous coronary artery angiography intracavity forming operation.
Usually, sacculus dilating catheter comprises near-end pipeline section, far-end pipeline section and the expandable balloon that is communicated with successively.
Described near-end pipeline section is made by the higher relatively material of rigidity usually, and its outer surface applies comparatively slick polymer usually; Described far-end pipeline section is usually by the higher relatively polymer of suppleness.
Described far-end pipeline section comprises a lead channels of holding guide wires such as guide wire, described lead channels two ends all with described sacculus dilating catheter external communications, its inlet is usually located at the end of described expandable balloon away from the far-end pipeline section, and its outlet is usually located at the tube wall of described far-end pipeline section near the near-end pipeline section.The sacculus dilating catheter of this structure is called as " quick exchange formula " sacculus dilating catheter.
Under the guiding of medical imaging device, earlier guiding catheter is inserted patient's aorta with the percutaneous puncture technology, then guide wires such as guide wire are sent into aorta along described guiding catheter, and exceed guiding catheter and continue to extend, and then tremulous pulse is preced with on the left side or the right side that enter the patient, the then lead channels that guide wires such as described guide wire are passed sacculus dilating catheter makes sacculus dilating catheter arrive narrow positions in the blood vessel along guide wire.
Because the inner chamber in described near-end pipeline section and the far-end pipeline section is communicated with the inner chamber of described expandable balloon, therefore can in described expandable balloon, transmit pressure by above-mentioned inner chamber.Expandable balloon is expanded under certain pressure, makes narrow intravascular space obtain enlarging, and therefore can recover blood circulation.Usually can set in advance support on the expandable balloon surface, so support can be expanded simultaneously, and be close to the inner surface of blood vessel.After the intrinsic pressure release with expandable balloon, described support will be stayed in the blood vessel for a long time, in case hemostatic tube stops up once more.Certainly, sacculus dilating catheter can also be used for the interventional therapy of other disease in the blood vessel.
In order successfully to arrive therapentic part, sacculus dilating catheter should possess the performance of two aspects at least.
At first, the conduit that is made of near-end pipeline section, far-end pipeline section should push, and promptly has appropriate rigidity, so that act on the end that the propelling movement power of near-end pipeline section successfully is sent to the far-end pipeline section.Under the effect of the power of propelling movement, have distortion such as suitable inflexible conduit can be avoided tiing a knot, bending.
Secondly, above-mentioned conduit must have proper flexibility again, therefore can guarantee that it can extend naturally along vascular system, especially can arrive narrow positions by the comparatively crooked blood vessel in arteria coronaria zone smoothly.This performance also can be called the tracing property of sacculus dilating catheter.
So sacculus dilating catheter has flexible higher far-end pipeline section and the higher near-end pipeline section of rigidity usually, and both are by the transition structure connection of rigidity gradual change.
Publication number is that the Chinese invention patent ublic specification of application of CN 1665560A promptly discloses a kind of like this sacculus dilating catheter, the near-end pipeline section of this sacculus dilating catheter is divided into thin slice near the part of far-end pipeline section, transition structure is fixedly connected on this inside that is divided into sheet segment, and both are glued at one usually.
This structure has also been brought a new problem when solving inflation fluid free-flow and connection reliability, that is exactly that transition structure is significantly bigger with the hardness that the near-end pipeline section glues together part mutually, therefore the fluctuation on the hardness will inevitably appear in the direction of extending along conduit, and this hardness fluctuations is easier to cause conduit knotting or buckling phenomenon in use to occur, so the reliability of sacculus dilating catheter is not high.
Therefore, how keeping eliminating above-mentioned hardness fluctuations under appropriate rigidity and the flexible prerequisite, and then improving the reliability of sacculus dilating catheter, is the present technical issues that need to address of those skilled in the art.
The utility model content
The purpose of this utility model provides a kind of sacculus dilating catheter, can avoid tangible hardness fluctuations occurring on the direction that its conduit extends, and then can avoid occurring knotting or buckling phenomenon in its use.
For solving the problems of the technologies described above, this utility model provides a kind of sacculus dilating catheter, comprise the near-end pipeline section, far-end pipeline section and the expandable balloon that are communicated with successively, further have in the inner chamber of described expandable balloon and described far-end pipeline section two ends all with the lead channels of described sacculus dilating catheter external communications, the end of described near-end pipeline section is set among the described far-end pipeline section, the part that described proximal tube section is arranged in the far-end pipeline section further comprises the ramp portion that is positioned at end, and the spiral part adjacent with described ramp portion.
Preferably, described ramp portion is to its terminal convergent.
Preferably, described spiral part has the helical form groove that radially runs through tube wall.
Preferably, the pitch of described spiral part is successively decreased along the direction near described ramp portion.
Preferably, the outlet of described lead channels is positioned at the outside of described ramp portion.
Preferably, the length range of described spiral part is 50mm to 200mm.
Preferably, the length range of described ramp portion is 10mm to 50mm.
Preferably, the scope of the pitch of described spiral part is 0.5mm to 10mm.
Preferably, the scope of the pitch of described spiral part is 0.5mm to 5mm.
Preferably, the width range of described helical form groove is 0.01mm to 0.03mm.
Preferably, the width of described helical form groove is 0.02mm.
With respect to above-mentioned prior art, sacculus dilating catheter provided by the utility model, its near-end pipeline section comprises the ramp portion that is positioned at end, and the spiral part adjacent with described ramp portion, described spiral part is cut into helical form, and pitch is reducing gradually near on the direction of far-end pipeline section.Described ramp portion is cut into ramped shaped, and the outlet of described lead channels is positioned at the outside of this ramp portion, and therefore near the far-end pipeline section the outlet of described lead channels can be supported by described ramp portion.The pitch of described spiral part reduces gradually, so the hardness of conduit gradually changes, and has effectively avoided conduit knotting or bending in use, and propelling movement power can be transmitted comparatively swimmingly.Sacculus dilating catheter provided by the utility model like this has machinery and dynamic characteristic preferably, and reliability is significantly improved.
Description of drawings
Fig. 1 provides the structural representation of a kind of specific embodiment of sacculus dilating catheter for this utility model;
Fig. 2 provides the structural representation of a kind of specific embodiment of near-end pipeline section for this utility model;
Fig. 3 is the structural representation of near-end pipeline section provided by the utility model and far-end pipeline section connected mode.
The specific embodiment
This utility model core provides a kind of sacculus dilating catheter, can avoid tangible hardness fluctuations occurring on the direction that its conduit extends, and then can avoid occurring knotting or buckling phenomenon in its use.
In order to make those skilled in the art person understand this utility model scheme better, the utility model is described in further detail below in conjunction with drawings and embodiments.
Please refer to Fig. 1, Fig. 1 provides the structural representation of a kind of specific embodiment of sacculus dilating catheter for this utility model.
In a kind of specific embodiment, sacculus dilating catheter provided by the utility model comprises near-end pipeline section 1, far-end pipeline section 2 and expandable balloon 3, and the three is communicated with successively.
Near-end pipeline section 1 should have appropriate rigidity, is sent to its far-end (end that connects far-end pipeline section 2) as much as possible so that act on the propelling movement power of its near-end.Near-end pipeline section 1 can select by the medical grade metal material and make, such as 304 rustless steels.In the actual use, near-end pipeline section 1 advances in the inner chamber of guiding catheter (not shown), in order to reduce the frictional force between near-end pipeline section 1 and the described guiding catheter, can or smear the slick polymer of one deck in the surface coverage of near-end pipeline section 1, such as polytetrafluoroethylene PTFE, the block copolymer PEBAX of polyethers and polyamide etc.
It is the part of inflation fluid passage that near-end pipeline section 1 has first inner chamber, 71, the first inner chambers 71.
Therefore far-end pipeline section 2 should have proper flexibility, should select softish relatively tubing for use, selects polymer usually for use, such as single or multiple lift tubing such as the block copolymer PEBAX of polyamide, polyethers and polyamide, polyethylene.Can improve the tracing property of sacculus dilating catheter like this, it can be extended naturally along vascular system, especially can pass through comparatively curved blood vessel arrival narrow positions of arteria coronaria zone smoothly.
It also is the part of inflation fluid passage that far-end pipeline section 2 has second inner chamber, 72, the second inner chambers 72.
The far-end of far-end pipeline section 2 (away from an end of near-end pipeline section 1) is connected with expandable balloon 3, expandable balloon 3 is by bearing big intrinsic pressure polymer pipe through hollow blow molding, and this tubing can be the block copolymer PEBAX of polyethylene, polyethers and polyamide etc.
Expandable balloon 3 has the 3rd inner chamber 73, above-mentioned first inner chamber 71, second inner chamber 72 and the 3rd inner chamber 73 common formation inflation fluid passages.
Further have lead channels 5 in second inner chamber 72 and the 3rd inner chamber 73, the two ends of lead channels 5 all with the external communications of sacculus dilating catheter so that guide wires such as guide wire 6 pass through wherein.The inlet 51 of lead channels 5 is positioned at the end of expandable balloon 3 away from far-end pipeline section 2, and the outlet 52 of lead channels 5 is positioned at the tube wall of far-end pipeline section 2 near near-end pipeline section 1.
Under the guiding of medical imaging device, earlier the guiding catheter (not shown) is inserted patient's aorta with the percutaneous puncture technology, then guide wire 6 is sent into aorta along described guiding catheter, and exceed guiding catheter and continue to extend, and then tremulous pulse is preced with on the left side or the right side that enter the patient, then guide wire 6 is passed lead channels 5, the narrow positions that sacculus dilating catheter is arrived in the blood vessel along guide wire 6.
Near-end pipeline section 1 is connected with lock interface device 4 (i.e. " Luer device ") away from an end of far-end pipeline section 2, so as easily nearly end tube section 1 be connected with expansion device.Described expansion device can be delivered to suitable inflation fluid the inside of expandable balloon 3 under pressure along above-mentioned inflation fluid passage, so expandable balloon 3 expanded, and makes narrow intravascular space obtain enlarging, thereby can recover blood circulation.Usually can set in advance the support (not shown) on the expandable balloon surface, so support can be expanded simultaneously, and be close to the inner surface of blood vessel.After the intrinsic pressure release with expandable balloon 3, described support will be stayed in the blood vessel for a long time, in case hemostatic tube stops up once more.
Please also refer to Fig. 2, Fig. 2 provides the structural representation of a kind of specific embodiment of near-end pipeline section for this utility model.
In a kind of specific embodiment, the far-end of near-end pipeline section 1 provided by the utility model is arranged among the far-end pipeline section 2, and both are set in one.
The part that near-end pipeline section 1 is arranged in far-end pipeline section 2 further comprises and is positioned at terminal ramp portion 12, and the spiral part 11 adjacent with ramp portion 12.Obviously, ramp portion 12 and spiral part 11 are extending naturally of near-end pipeline section 1.
In order to obtain better technical effect, length L 2 that should choose reasonable ramp portion 12, preferably between 10mm to 50mm, its support effect is comparatively reliable like this for the length L 2 of ramp portion 12.
Spiral part 11 is provided with the helical form groove 111 that runs through near-end pipeline section 1 tube wall.Helical form groove 111 can form by cutting, and its pitch is successively decreased along the direction (also being the direction of right-to-left among Fig. 2) near ramp portion 12.
It is pointed out that helical form groove 111 can be successive, the helical form groove 111 that promptly is set around near-end pipeline section 1 tube wall can be the integral body of a connection; Helical form groove 111 also can be discontinuous, and the helical form groove 111 that promptly is set around near-end pipeline section 1 tube wall can be separated into several portions the circumferential of near-end pipeline section 1 and axially.Cutting near-end pipeline section 1 can form successive helical form groove 111 continuously, and compartment of terrain cutting near-end pipeline section 1 can form discontinuous helical form groove 111.Protection domain of the present utility model is not subjected to the restriction of helical form groove 111 concrete shapes.
In order to obtain better technical effect, length L 1 that should choose reasonable spiral part 11, the length L 1 of spiral part 11 is preferably between 50mm to 200mm, like this, main part at near-end pipeline section 1 has the suitable inflexible while, and spiral part 11 can have comparatively suitable flexibility.
The pitch of helical form groove 111 also has bigger influence to the performance of spiral part 11, the too small rigidity deficiency of pitch, the excessive requirement that then can not satisfy flexibility of pitch.Realize comparatively ideal balance between, maximum pitch P 1 can be 10mm, and minimum pitch P2 can be 0.5mm.Further above-mentioned maximum pitch P 1 is made as 5mm, and minimum pitch P2 is when being made as 0.5mm, above-mentioned technique effect is comparatively remarkable.
In addition, the width of helical form groove 111 is improved also help this utility model that the raising of sacculus dilating catheter performance is provided.The scope of helical form groove 111 width can be made as 0.01mm to 0.03mm, particularly, the width of helical form groove 111 can be 0.02mm.
Please also refer to Fig. 3, Fig. 3 is the structural representation of near-end pipeline section provided by the utility model and far-end pipeline section connected mode.
In order to ensure being communicated with and sealing of first inner chamber 71 and second inner chamber 72, mode that can be by routine nearly end tube section 1 is welded in one with far-end pipeline section 2.Certainly, identical or the similar connection tube (material includes but not limited to the block copolymer PEBAX of polyamide, polyethylene or polyethers and polyamide etc.) of material and far-end pipeline section 2 also can be set specially, and the two ends of this connection tube closely are connected with near-end pipeline section 1 and far-end pipeline section 2 respectively, can realize being communicated with and sealing of first inner chamber 71 and second inner chamber 72 like this.Concrete connection and sealing means belong to the content of prior art, and this paper repeats no more.
The near-end pipeline section 1 of sacculus dilating catheter provided by the utility model comprises the ramp portion 12 that is positioned at end, and the spiral part 11 adjacent with ramp portion 12, spiral part 11 is cut into helical form, and pitch is reducing gradually near on the direction of far-end pipeline section 2.Ramp portion 12 is cut into ramped shaped, and the outlet 52 of lead channels 5 is positioned at the outside of ramp portion 12, so near the far-end pipeline sections 2 the outlet 52 of lead channels 5 can be supported by ramp portion 12.The pitch of spiral part 11 reduces gradually, so the hardness of conduit gradually changes, and has effectively avoided conduit knotting or bending in use, and propelling movement power can be transmitted comparatively swimmingly.Sacculus dilating catheter provided by the utility model like this has machinery and dynamic characteristic preferably, can pass through patient's vascular system arrival diseased region with higher propelling movement and tracing property, is not prone to knotting or crooked phenomenon.
More than sacculus dilating catheter provided by the utility model is described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from this utility model principle, can also carry out some improvement and modification to this utility model, these improvement and modification also fall in the protection domain of this utility model claim.
Claims (11)
1, a kind of sacculus dilating catheter, comprise the near-end pipeline section, far-end pipeline section and the expandable balloon that are communicated with successively, further have in the inner chamber of described expandable balloon and described far-end pipeline section two ends all with the lead channels of described sacculus dilating catheter external communications, the end of described near-end pipeline section is set among the described far-end pipeline section, it is characterized in that, the part that described proximal tube section is arranged in the far-end pipeline section further comprises the ramp portion that is positioned at end, and the spiral part adjacent with described ramp portion.
2, sacculus dilating catheter as claimed in claim 1 is characterized in that, described ramp portion is to its terminal convergent.
3, sacculus dilating catheter as claimed in claim 2 is characterized in that, described spiral part has the helical form groove that radially runs through tube wall.
4, sacculus dilating catheter as claimed in claim 3 is characterized in that, the pitch of described spiral part is successively decreased along the direction near described ramp portion.
5, sacculus dilating catheter as claimed in claim 4 is characterized in that, the outlet of described lead channels is positioned at the outside of described ramp portion.
As each described sacculus dilating catheter of claim 1 to 5, it is characterized in that 6, the length range of described spiral part is 50mm to 200mm.
As each described sacculus dilating catheter of claim 1 to 5, it is characterized in that 7, the length range of described ramp portion is 10mm to 50mm.
As each described sacculus dilating catheter of claim 1 to 5, it is characterized in that 8, the scope of described spiral part pitch is 0.5mm to 10mm.
9, sacculus dilating catheter as claimed in claim 8 is characterized in that, the scope of described spiral part pitch is 0.5mm to 5mm.
10, sacculus dilating catheter as claimed in claim 8 is characterized in that, the width range of described helical form groove is 0.01mm to 0.03mm.
11, sacculus dilating catheter as claimed in claim 10 is characterized in that, the width of described helical form groove is 0.02mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820058615XU CN201279337Y (en) | 2008-05-15 | 2008-05-15 | Saccule expansion conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820058615XU CN201279337Y (en) | 2008-05-15 | 2008-05-15 | Saccule expansion conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201279337Y true CN201279337Y (en) | 2009-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820058615XU Expired - Fee Related CN201279337Y (en) | 2008-05-15 | 2008-05-15 | Saccule expansion conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201279337Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103190967A (en) * | 2013-03-15 | 2013-07-10 | 杭州启明医疗器械有限公司 | Interventional device delivering system and sheath core thereof |
| WO2013135182A1 (en) * | 2012-03-14 | 2013-09-19 | 上海微创医疗器械（集团）有限公司 | Balloon dilatation catheter |
| CN104436420A (en) * | 2014-11-28 | 2015-03-25 | 刘宗军 | Drug eluting balloon |
| CN105361943A (en) * | 2014-08-27 | 2016-03-02 | 上海安通医疗科技有限公司 | Catheter device for adjusting nerves |
| CN106823108A (en) * | 2015-12-04 | 2017-06-13 | 易生科技(北京)有限公司 | A kind of hypotube |
| CN107398004A (en) * | 2017-07-24 | 2017-11-28 | 湖南埃普特医疗器械有限公司 | One kind moves back pipe device |
| CN107469223A (en) * | 2017-07-31 | 2017-12-15 | 鼎科医疗技术（苏州）有限公司 | A kind of hypotube and its sacculus dilating catheter |
| CN110234384A (en) * | 2017-02-15 | 2019-09-13 | 奥林巴斯株式会社 | The manufacturing method of catheter tube for medical treatment and medical pipe |
| CN111375116A (en) * | 2014-11-04 | 2020-07-07 | 祥丰医疗私人有限公司 | Flexible gradient conduit support frame |
| WO2023093575A1 (en) * | 2021-11-23 | 2023-06-01 | 生一科技(北京)有限公司 | Rapid exchange balloon system |
| US11744988B2 (en) | 2014-11-04 | 2023-09-05 | Orbusneich Medical Pte. Ltd. | Variable flexibility catheter support frame |
-
2008
- 2008-05-15 CN CNU200820058615XU patent/CN201279337Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013135182A1 (en) * | 2012-03-14 | 2013-09-19 | 上海微创医疗器械（集团）有限公司 | Balloon dilatation catheter |
| CN103190967A (en) * | 2013-03-15 | 2013-07-10 | 杭州启明医疗器械有限公司 | Interventional device delivering system and sheath core thereof |
| CN103190967B (en) * | 2013-03-15 | 2015-08-05 | 杭州启明医疗器械有限公司 | A kind of intervention apparatus conveying system and sheath core thereof |
| CN105361943B (en) * | 2014-08-27 | 2021-04-20 | 上海安通医疗科技有限公司 | Catheter device for regulating nerves |
| CN105361943A (en) * | 2014-08-27 | 2016-03-02 | 上海安通医疗科技有限公司 | Catheter device for adjusting nerves |
| CN111375116A (en) * | 2014-11-04 | 2020-07-07 | 祥丰医疗私人有限公司 | Flexible gradient conduit support frame |
| US11744988B2 (en) | 2014-11-04 | 2023-09-05 | Orbusneich Medical Pte. Ltd. | Variable flexibility catheter support frame |
| US11839722B2 (en) | 2014-11-04 | 2023-12-12 | Orbusneich Medical Pte. Ltd. | Progressive flexibility catheter support frame |
| CN104436420A (en) * | 2014-11-28 | 2015-03-25 | 刘宗军 | Drug eluting balloon |
| CN106823108A (en) * | 2015-12-04 | 2017-06-13 | 易生科技(北京)有限公司 | A kind of hypotube |
| CN106823108B (en) * | 2015-12-04 | 2023-06-06 | 易生科技(北京)有限公司 | a hypotube |
| CN110234384A (en) * | 2017-02-15 | 2019-09-13 | 奥林巴斯株式会社 | The manufacturing method of catheter tube for medical treatment and medical pipe |
| CN107398004A (en) * | 2017-07-24 | 2017-11-28 | 湖南埃普特医疗器械有限公司 | One kind moves back pipe device |
| CN107469223A (en) * | 2017-07-31 | 2017-12-15 | 鼎科医疗技术（苏州）有限公司 | A kind of hypotube and its sacculus dilating catheter |
| WO2023093575A1 (en) * | 2021-11-23 | 2023-06-01 | 生一科技(北京)有限公司 | Rapid exchange balloon system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI MICROPORT MEDICAL EQUIPMENT (GROUP) CO., Free format text: FORMER NAME: WEICHUANG MEDICAL EQUIPMENT (SHANGHAI) CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 201203 Shanghai City Newton Road, Pudong New Area Zhangjiang hi tech Park No. 501 Patentee after: Shanghai MicroPort Medical Equipment (Group) Co., Ltd. Address before: 201203 Shanghai City Newton Road, Pudong New Area Zhangjiang hi tech Park No. 501 Patentee before: Weichuang Medical Equipment (Shanghai) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20150515 |
|
| EXPY | Termination of patent right or utility model |