CN2624936Y - Step type coronary artery sacculus dilating catheter - Google Patents
Step type coronary artery sacculus dilating catheter Download PDFInfo
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- CN2624936Y CN2624936Y CN 03221938 CN03221938U CN2624936Y CN 2624936 Y CN2624936 Y CN 2624936Y CN 03221938 CN03221938 CN 03221938 CN 03221938 U CN03221938 U CN 03221938U CN 2624936 Y CN2624936 Y CN 2624936Y
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- sacculus
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- coronary artery
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Abstract
A stepped coronary artery saccule dilating catheter is provided, which comprises a saccule [1], an inner tube [2], a far outer tube [3], a proximal tube [6], and a connecting piece [7]. The utility model is characterized in that: the shape of the two ends of the saccule [1] is stepped structure and the stepped saccule consists of three kinds of straight sections and two kinds of conical sections. The straight section [12] is in the middle and is positioned with a first conical section [13] symmetrically on both ends; then both ends of the first conical section [13] are symmetrically positioned with a straight transitional section [15] and the diameter of the transitional section [15]is shorter than that of the straight section [12] in the middle; both ends of the transitional section [15] is symmetrically positioned with a second conical section [14]; then both ends of the second conical section [14] is symmetrically positioned with a straight connection section [16], and the diameter of the connection section [16]is shorter than that of the transitional section [15]. Due to adopting the stepped design of on both ends of the saccule, the vascular injury caused by excessive extension of the bracket on both ends is avoided in the expansion of the saccule and reduce the possibility of the vascular restenosis after operation. In addition, adopting the stepped structure can improve the penetration performance of the saccule catheter.
Description
Technical field
This utility model belongs to a kind of medical apparatus and instruments, relates to a kind of sacculus dilating catheter of percutaneous transluminal coronary angioplasty treatment coronary occlusion.Be specifically related to a kind of coronary artery sacculus dilating catheter that adopts the notch cuttype balloons technique.
Background technology
Get involved in the blood vessel or Wicresoft to hinder treatment technology be the novel medical skill of the usefulness internal medicine method lieu of surgery that grows up of the eighties in the world.It is under the guiding of medical imaging device that treatment technology is hindered by interior intervention of blood vessel or Wicresoft, utilize the Clinics and Practices that apparatus carried out operations such as puncture needle, seal wire and conduit, wherein the coronary artery sacculus dilating catheter is that the most representative high-tech product in the medical apparatus and instruments is hindered by Wicresoft.The sacculus dilating catheter that uses is because the cause of sacculus structure itself at present, cause in the practical application and still come with some shortcomings, furtherly because sacculus is that (promptly is a flat segments to an awl two flat segments structures, two ends are symmetrical arranged an awl section, awl section two ends then are symmetrical arranged a straight linkage section, see shown in Figure 4), when sacculus dilating catheter blood vessel dilating support, can produce " dog bone " phenomenon, be that the support two ends are at first opened by expansion, expand again then and open, and interlude presents certain matrix.Can cause blood vessel injury because of support two ends overdistension like this, and then cause the bracket end vascular restenosis.For this reason, the purpose of this utility model produces " dog bone " phenomenon by improving when balloon structure is improved the inferior vena cava balloon dilation intravascular stent, and then reduces the damage of support two ends to blood vessel.
Summary of the invention
For achieving the above object, the technical solution adopted in the utility model is: a kind of notch cuttype coronary artery sacculus dilating catheter, comprise sacculus, interior pipe, far ultraviolet pipe, proximal tube, connector, wherein, sacculus is a radial dilatation element coronarius, interior pipe is provided with at least one development point, and its innovation is: the profile at sacculus two ends is the notch cuttype structure, and this notch cuttype sacculus comprises three class flat segments and two classes awl section: middle is flat segments; The flat segments two ends are symmetrical arranged the first awl section; The first awl section two ends then are symmetrical arranged straight changeover portion, and the diameter of this changeover portion is less than the diameter of neutral straight section; The changeover portion two ends then are symmetrical arranged the second awl section; The second awl section two ends then are symmetrical arranged straight linkage section, and the diameter of this linkage section is less than the diameter of changeover portion.
Related content and variation further are explained as follows in the technique scheme:
1, in the such scheme, the first awl segment length is 0.1～5mm, is preferably 0.2～3mm, and tapering is 10～90 degree, is preferably 35～40 degree.It is 1～15% that changeover portion diameter and neutral straight section diameter differ, and is preferably 5～10%, and this segment length is 0.5～10mm, is preferably 1～5mm.The second awl segment length is 0.1～8mm, is preferably 0.5～5mm, and tapering is 10～90 degree, is preferably 30～45 degree.The linkage section diameter and the interior external diameter of pipe of one end match, and the linkage section diameter and the far ultraviolet pipe of the other end match.
The given angle of above tapering is the angle between the awl section centrage and the conical surface, and diameter refers to the diameter behind the balloon expandable.
2, in the such scheme, desirable more for the effect that makes balloon expandable, sacculus is designed to different wall thickness, wherein, the wall thickness 1～20% at other position of wall ratio of neutral straight section is preferably 5～10%.
3, in the such scheme, the diameter of the neutral straight section behind the balloon expandable is 1.5～5mm.
4, in the such scheme, described notch cuttype sacculus can be made of half conforming materials, or the neutral straight section adopts non-conforming materials, and remainder adopts half conforming materials.In the preparatory stage of sacculus molding, the molding sacculus tubing of certain size is drawn into as shown in Figure 3 shape in advance, in corresponding mould, be processed into shape shown in Figure 2 then.
5, in the such scheme, embedding or be with two Huangs/platinum ring on the interior pipe in the described sacculus as the development point, develop the position of point between the first awl section of notch cuttype sacculus and straight transitions section, and two length between developing are suitable with the effective length behind the balloon expandable.
6, in the such scheme, pipe is polymer composite in described, this polymer composite adopts the compound mode of extruding to make, be that nylon material is that outer wall and polythene material are inwall, or the PEBAX material is that outer wall and polythene material are inwall, thereby reduces the frictional force between inwall and guide wire.
Its sacculus of this utility model adopts stepped design, second flat segments (changeover portion) at sacculus two ends will be a little less than the neutral straight section, therefore, when balloon expandable, avoid support two ends overdistension and the blood vessel injury that causes, reduced the probability of the vascular restenosis of postoperative.In addition, adopt stepped project organization can improve the performance of passing through of foley's tube.
Description of drawings
Accompanying drawing 1 is the structural representation of notch cuttype coronary artery sacculus dilating catheter;
Accompanying drawing 2 is a notch cuttype sacculus sketch map;
Accompanying drawing 3 is a ready-made shape before the molding of notch cuttype sacculus;
Accompanying drawing 4 is an existing awl two flat segments sacculus sketch maps.
In the above accompanying drawing: 1, sacculus; 2, interior pipe; 3, far ultraviolet pipe; 4, seal wire mouth; 5, connection tube; 6, proximal tube; 7, connector; 8, balloon proximal; 9, sacculus far-end; 10, inner chamber; 11, development point; 12, flat segments; 13, the first awl section; 14, the second awl section; 15, changeover portion; 16, linkage section.
The specific embodiment
Be embodiment with accompanying drawing 1～Fig. 3 below, this utility model sacculus dilating catheter further specified:
As shown in Figure 1, a kind of notch cuttype coronary artery sacculus dilating catheter, it comprises manages 2, far ultraviolet pipes 3, intermediate connection tube 5, a near-end metal tube 6 (the near-end metal tube has trocar sheath or has the PTFE coating), a connector 7 in the notch cuttype sacculus 1, one.Sacculus far-end 9 is connected with interior pipe 2 outer rims, and in the formation sealing of sacculus far-end 9 places, balloon proximal 8 is connected with far ultraviolet pipe 3 outer rims, far ultraviolet pipe 3 is a single lumen catheter, interior pipe 2, far ultraviolet pipe 3 and intermediate connection tube 5 adopt special connected mode to form seal wire mouth 4, guiding wire penetrates from the inner chamber 10 of balloon tip, passes from seal wire mouth 4.The seal wire mouth moulding of described uniqueness is that interior pipe 2 adopts mode as shown in Figure 1 to be connected to form with intermediate connection tube 5 and far ultraviolet pipe 3.Intermediate connection tube 5 is connected (or directly being connected with near-end metal tube trocar sheath) with near-end metal tube 6.Near-end metal tube 6 (or near-end metal tube and trocar sheath thereof) is connected with connector 7.Passage between described connector 7 and proximal tube 6, interior pipe 2 and the far ultraviolet pipe 3 constitutes the topping up/tapping passage of a sacculus 1.When needs are given sacculus 1 pressurization, the liquid of pressurization directly can be passed through connector 7, send into the inner chamber of proximal tube 6 and the cavity between far ultraviolet pipe 3 and the interior pipe 2, arrive sacculus 1, thereby finish process of expansion to sacculus 1.Sacculus 1 adopts half compliance nylon material to make, and specifically adopts the PEBAX of half compliance.Adopt hot adhesion with interior pipe 2 and far ultraviolet pipe 3 respectively at sacculus far-end 9 and balloon proximal 8 places.Diameter after described sacculus 1 expansion is controlled at 1.5～4.5mm.The fracture pressure of such sacculus can surpass 20 atmospheric pressure.Intermediate connection tube 5 materials are nylon.Far ultraviolet pipe 3 materials are PEBAX.The metal material of proximal tube 6 adopts stainless steel material to make, can outside stainless steel tube, be with plastic tube or apply one deck PTFE coating, increase aesthetic appearance of the present utility model, one end of this metal tube is the gradient groove or welds the stainless steel silk of a band gradient that the length of this slope mouth or stainless steel silk is 50～300mm.In pipe 2 make by PEBAX, the inwall of interior pipe 2 scribbles the layer of polyethylene coating, can reduce greatly from the frictional force between inner catheter vias inner walls and guide wire.In order in operation, to develop, embedding (cover) has two Huangs (platinum) gold ring as the point 11 that develops on the interior pipe 2 of sacculus 1, develop the position of point 11 between first awl 13 and second flat segments of section (being changeover portion 15) of notch cuttype sacculus 1, and the length between it develops is suitable with the effective length behind the balloon expandable.
As shown in Figure 2, this notch cuttype sacculus comprises three class flat segments and two classes awl section: intermediary flat segments 12 i.e. first flat segments; Neutral straight section 12 two ends are symmetrical arranged the first awl section 13, and this segment length is 0.2～3mm, and tapering is 35～40 degree.The first awl section, 13 two ends then are symmetrical arranged straight changeover portion 15, and it is 5～10% that this section diameter and the first flat segments diameter differ, and this segment length is 1～5mm.Changeover portion 15 two ends then are symmetrical arranged the second awl section 14, and this segment length is 0.5～5mm, and tapering is 30～45 degree.Second awl section two ends then are symmetrical arranged linkage section 16, and the diameter of this linkage section 16 is less than the diameter of changeover portion 15, and an end internal diameter of linkage section 16 and interior pipe 2 external diameters match, and other end internal diameter and far ultraviolet pipe 3 match.
Claims (8)
1, a kind of notch cuttype coronary artery sacculus dilating catheter, comprise sacculus [1], interior pipe [2], far ultraviolet pipe [3], proximal tube [6], connector [7], wherein, sacculus [1] is a radial dilatation element coronarius, interior pipe [2] is provided with at least one development point, it is characterized in that: the profile at sacculus [1] two ends is the notch cuttype structure, and this notch cuttype sacculus comprises three class flat segments and two classes awl section: middle is flat segments [12]; Flat segments [12] two ends are symmetrical arranged the first awl section [13]; First awl section [13] two ends then are symmetrical arranged straight changeover portion [15], and the diameter of this changeover portion [15] is less than the diameter of neutral straight section [12]; Changeover portion [15] two ends then are symmetrical arranged the second awl section [14]; Second awl section [14] two ends then are symmetrical arranged straight linkage section [16], and the diameter of this linkage section [16] is less than the diameter of changeover portion [15].
2, notch cuttype coronary artery sacculus dilating catheter according to claim 1 is characterized in that: first awl section [13] length is 0.1～5mm, and tapering is 10～90 degree; It is 1～15% that changeover portion [15] diameter and neutral straight section [12] diameter differ, and this segment length is 0.5～10mm; Second awl section [14] length is 0.1～8mm, and tapering is 10～90 degree; The linkage section of one end [16] diameter and interior pipe [2] external diameter match, and the linkage section of the other end [16] diameter and far ultraviolet pipe [3] match.
3, notch cuttype coronary artery sacculus dilating catheter according to claim 2 is characterized in that: first awl section [13] length is 0.2～3mm, and tapering is 35～40 degree; It is 5～10% that changeover portion [15] diameter and neutral straight section [12] diameter differ, and this segment length is 1～5mm; Second awl section [14] length is 0.5～5mm, and tapering is 30～45 degree.
4, notch cuttype coronary artery sacculus dilating catheter according to claim 1 is characterized in that: described sacculus [1] adopts different wall thickness, wherein, and the wall thickness 1～20% at other position of wall ratio of neutral straight section [12].
5, notch cuttype coronary artery sacculus dilating catheter according to claim 4 is characterized in that: the wall thickness 5～10% at other position of wall ratio of described neutral straight section [12].
6, notch cuttype coronary artery sacculus dilating catheter according to claim 1 is characterized in that: the diameter of the flat segments [12] after described sacculus [1] expansion is 1.5～5mm.
7, notch cuttype coronary artery sacculus dilating catheter according to claim 1, it is characterized in that: described notch cuttype sacculus [1] is made of half conforming materials, or the neutral straight section adopts non-conforming materials, and remainder adopts half conforming materials.
8, notch cuttype coronary artery sacculus dilating catheter according to claim 1, it is characterized in that: the interior pipe [2] in the described sacculus [1] is gone up embedding or is with two Huangs/platinum ring as development point [11], the position of development point [11] is between the first awl section [13] and straight transitions section [15] of notch cuttype sacculus [1], and two length of developing between the point are suitable with the effective length behind the balloon expandable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221938 CN2624936Y (en) | 2003-05-16 | 2003-05-16 | Step type coronary artery sacculus dilating catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221938 CN2624936Y (en) | 2003-05-16 | 2003-05-16 | Step type coronary artery sacculus dilating catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2624936Y true CN2624936Y (en) | 2004-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03221938 Expired - Fee Related CN2624936Y (en) | 2003-05-16 | 2003-05-16 | Step type coronary artery sacculus dilating catheter |
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| CN (1) | CN2624936Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102793962A (en) * | 2012-07-20 | 2012-11-28 | 易生科技(北京)有限公司 | Balloon dilatation catheter |
| CN105193370A (en) * | 2010-03-09 | 2015-12-30 | 智能医疗系统有限公司 | Balloon endoscope and methods of manufacture and use thereof |
| CN105246537A (en) * | 2013-03-15 | 2016-01-13 | 雅培心血管系统有限公司 | Length adjustable balloon catheter for multiple indications |
| CN105771069A (en) * | 2016-05-27 | 2016-07-20 | 心凯诺医疗科技(上海)有限公司 | Novel balloon dilatation catheter |
| CN106137486A (en) * | 2016-07-18 | 2016-11-23 | 江苏大学 | A kind of bifurcated sacculus |
| CN106137485A (en) * | 2015-04-02 | 2016-11-23 | 上海微创医疗器械（集团）有限公司 | Sacculus and stent delivery system |
| US10314471B2 (en) | 2013-05-21 | 2019-06-11 | Smart Medical Systems Ltd. | Endoscope reprocessing method |
| US10398295B2 (en) | 2014-12-22 | 2019-09-03 | Smart Medical Systems Ltd. | Balloon endoscope reprocessing system and method |
| US10456564B2 (en) | 2011-03-07 | 2019-10-29 | Smart Medical Systems Ltd. | Balloon-equipped endoscopic devices and methods thereof |
| US10835107B2 (en) | 2015-04-03 | 2020-11-17 | Smart Medical Systems Ltd. | Endoscope electro-pneumatic adaptor |
-
2003
- 2003-05-16 CN CN 03221938 patent/CN2624936Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10052014B2 (en) | 2010-03-09 | 2018-08-21 | Smart Medical Systems Ltd. | Balloon endoscope and methods of manufacture and use thereof |
| CN105193370A (en) * | 2010-03-09 | 2015-12-30 | 智能医疗系统有限公司 | Balloon endoscope and methods of manufacture and use thereof |
| US10610086B2 (en) | 2010-03-09 | 2020-04-07 | Smart Medical Systems Ltd. | Balloon endoscope and methods of manufacture and use thereof |
| CN105193370B (en) * | 2010-03-09 | 2017-10-03 | 智能医疗系统有限公司 | Sacculus endoscope and production and preparation method thereof |
| US10456564B2 (en) | 2011-03-07 | 2019-10-29 | Smart Medical Systems Ltd. | Balloon-equipped endoscopic devices and methods thereof |
| CN102793962A (en) * | 2012-07-20 | 2012-11-28 | 易生科技(北京)有限公司 | Balloon dilatation catheter |
| CN105246537A (en) * | 2013-03-15 | 2016-01-13 | 雅培心血管系统有限公司 | Length adjustable balloon catheter for multiple indications |
| US10314471B2 (en) | 2013-05-21 | 2019-06-11 | Smart Medical Systems Ltd. | Endoscope reprocessing method |
| US10398295B2 (en) | 2014-12-22 | 2019-09-03 | Smart Medical Systems Ltd. | Balloon endoscope reprocessing system and method |
| CN106137485B (en) * | 2015-04-02 | 2018-11-09 | 上海微创医疗器械（集团）有限公司 | Sacculus and stent delivery system |
| CN106137485A (en) * | 2015-04-02 | 2016-11-23 | 上海微创医疗器械（集团）有限公司 | Sacculus and stent delivery system |
| US10835107B2 (en) | 2015-04-03 | 2020-11-17 | Smart Medical Systems Ltd. | Endoscope electro-pneumatic adaptor |
| CN105771069A (en) * | 2016-05-27 | 2016-07-20 | 心凯诺医疗科技(上海)有限公司 | Novel balloon dilatation catheter |
| CN106137486A (en) * | 2016-07-18 | 2016-11-23 | 江苏大学 | A kind of bifurcated sacculus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |