CN104800955A - Son-mother extending catheter and son catheter thereof - Google Patents
Son-mother extending catheter and son catheter thereof Download PDFInfo
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- CN104800955A CN104800955A CN201510250853.5A CN201510250853A CN104800955A CN 104800955 A CN104800955 A CN 104800955A CN 201510250853 A CN201510250853 A CN 201510250853A CN 104800955 A CN104800955 A CN 104800955A
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Abstract
The invention discloses a son-mother extending catheter and a son catheter thereof. The son catheter comprises a catheter body and a catheter seat, wherein an opening is formed in the end part, far away from the catheter seat, of the catheter body; side holes are formed in the side walls of the catheter body. The son catheter moves along a guide wire in a mother catheter until the son catheter stretches out of the mother catheter, at the moment, the outer wall of the son catheter is in contact with the inner wall of the blood vessel to cause the blockage of the blood vessel, when the contact part of the son catheter and the blood vessel is positioned between each side hole and the end part, far away from the catheter seat, of the catheter body, blood can flow into the catheter body from the side holes in the side walls of the catheter body, and then the blood in the catheter body can bleed from the end part, far away from the catheter seat, of the son catheter to realize the circulation of the blood, so that the condition that the blood vessel is blocked by the son catheter is avoided, the condition of causing acute ischemia is prevented, and the surgical risk is reduced.
Description
Technical field
The present invention relates to technical field of medical instruments, more particularly, relate to a kind of primary and secondary and extend conduit and sub-conduit thereof.
Background technology
Percutaneous coronary intervention (pci) (Percutaneous Coronary Intervention, PCI), refers to the narrow even inaccessible coronary artery tube chamber of Transcatheter technology dredging, thus improves the Therapeutic Method of the blood perfusion of cardiac muscle.This Therapeutic Method has the advantages such as short treating period, wound be little, evident in efficacy, and development in recent years is rapid.According to the difference of the technology of enforcement, PCI can be divided into percutaneous coronary Ink vessel transfusing plasty (PTCA), coronary artery stent implantation, Rotational atherectomy, Cutting balloon angioplasty, coronary thrombosis aspiration etc.
In PCI operation, usually run into the blood vessel that some pathological changes are positioned at tortuous, calcification or Serious Stenosis, even if in the sufficient situation of balloon pre-dilation, general conduit is difficult to arrive diseased region.Addressing these problems common technology is at present use primary and secondary to extend conduit, conduit is extended by medical apparatus and instruments as support or arteria coronaria sacculus etc. deliver to diseased region by primary and secondary, female conduit first in intravasation to diseased region, seal wire extends in female catheter interior, then sub-conduit reaches diseased region along seal wire, and last medical apparatus and instruments such as support or arteria coronaria sacculus etc. arrive diseased region by sub-conduit.
Primary and secondary extends conduit and enters narrow Ink vessel transfusing, near or arrive the position of pathological changes, extend conduit through primary and secondary and send into medical apparatus and instruments and medical apparatus and instruments arrived or near diseased region.Primary and secondary extends conduit and comprises female conduit and sub-conduit, sub-conduit can move in female catheter interior, existing sub-conduit is divided into RX type conduit and OTW type conduit, as shown in Figure 1 the RX type conduit catheter block 03 that comprises catheter body 01, the push rod 02 be connected with one end of catheter body 01 and be connected with push rod 02.As shown in Figure 2, the OTW type conduit catheter block 03 that comprises catheter body 01 and be connected with one end of catheter body 01.
But after primary and secondary extension intravasation, the especially sub-conduit of primary and secondary extension itself can reduce the blood flow of this blood vessel, when group conduit outside is with vessel wall contact, even can blocks the blood flow of blood vessel, and then cause acute ischemia, increase operation risk.
In sum, can reduce the blood flow of this blood vessel after how effectively solving primary and secondary extension intravasation, even blocking the problem of vascular flow, is current those skilled in the art's urgent problem.
Summary of the invention
In view of this, first object of the present invention is to provide a seed tube, the blood flow of this blood vessel can be reduced after the structural design of this sub-conduit can solve primary and secondary extension intravasation effectively, even block the problem of vascular flow, second object of the present invention is to provide a kind of primary and secondary comprising above-mentioned sub-conduit and extends conduit.
In order to reach above-mentioned first object, the invention provides following technical scheme:
One seed tube, comprises catheter body and catheter block, and the end away from catheter block of described catheter body has perforate, and the sidewall of described catheter body offers side opening.
Preferably, in above-mentioned sub-conduit, the quantity of described side opening is multiple.
Preferably, in above-mentioned sub-conduit, multiple described side opening distributes along the circumference of described catheter body.
Preferably, in above-mentioned sub-conduit, at least two described side openings along described catheter body axial direction between distance be greater than zero.
Preferably, in above-mentioned sub-conduit, described side opening is 1-8cm apart from the distance of the end away from catheter block of catheter body.
Preferably, in above-mentioned sub-conduit, one end away from catheter block of described catheter body is also fixedly connected with soft head.
Preferably, in above-mentioned sub-conduit, described catheter body is connected by push rod with catheter block, and one end of described push rod is fixedly connected with one end of catheter body, and the other end of described push rod is fixedly connected with described catheter block.
Preferably, in above-mentioned sub-conduit, described catheter body is directly fixedly connected with catheter block, and described catheter block has the inner chamber be communicated with catheter body inside.
Preferably, in above-mentioned sub-conduit, the internal diameter of described catheter body is greater than 1.04mm.
A kind of primary and secondary extends conduit, comprises female conduit and sub-conduit, and described sub-conduit is the sub-conduit according to any one of such as above-mentioned.
Sub-conduit provided by the invention comprises catheter body and catheter block, and catheter block can directly be connected with one end of catheter body, and catheter block also can be connected with one end of catheter body by push rod.Wherein the end away from catheter block of catheter body has perforate, namely be positioned at catheter body inside liquid can by catheter body away from the end of catheter block perforate flow out, and the sidewall of catheter body offers side opening, and the liquid being namely positioned at catheter body outside can flow to catheter body inside by side opening.
When applying sub-conduit provided by the invention, sub-conduit moves along the seal wire in female conduit, until sub-conduit stretches out female conduit, if now the outer wall of sub-conduit contact with blood vessel cause blood vessel blockage and sub-conduit and contacts blood position side opening and catheter body away from catheter block end between time, blood just can flow to catheter body from the side opening catheter body sidewall, and then blood in catheter body can flowing out away from the perforate the end of catheter block from sub-conduit, achieve the circulation of blood, and then avoid sub-conduit by the situation of blood vessel blockage, prevent the situation causing acute ischemia, reduce operation risk.
In order to reach above-mentioned second object, present invention also offers a kind of primary and secondary and extending conduit, this primary and secondary extends conduit and comprises any one sub-conduit above-mentioned.Because above-mentioned sub-conduit has above-mentioned technique effect, the primary and secondary therefore with this sub-conduit extends conduit and also should have corresponding technique effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of RX type conduit in prior art;
Fig. 2 is the structural representation of OTW type conduit in prior art;
The structural representation of the RX type conduit that Fig. 3 provides for the embodiment of the present invention;
The blood flow schematic diagram of the RX type conduit that Fig. 4 provides for the embodiment of the present invention;
The structural representation of the OTW type conduit that Fig. 5 provides for the embodiment of the present invention;
The blood flow schematic diagram of the OTW type conduit that Fig. 6 provides for the embodiment of the present invention.
In Fig. 1-2:
01-catheter body, 02-push rod, 03-catheter block;
In Fig. 3-Fig. 6:
The female conduit of the soft head of 1-, 2-side opening, 3-catheter body, 4-push rod, 5-sounding mark, 6-catheter block, 7-.
Detailed description of the invention
First object of the present invention is to provide a seed tube, the blood flow of this blood vessel can be reduced after the structural design of this sub-conduit can solve primary and secondary extension intravasation effectively, even block the problem of vascular flow, second object of the present invention is to provide a kind of primary and secondary comprising above-mentioned sub-conduit and extends conduit.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 3-Fig. 6, the sub-conduit that the embodiment of the present invention provides comprises catheter body 3 and catheter block 6, and catheter block 6 can directly be connected with one end of catheter body 3, and catheter block 6 also can be connected with one end of catheter body 3 by push rod 4.Wherein the end away from catheter block 6 of catheter body 3 has perforate, namely be positioned at catheter body 3 inside liquid can by catheter body 3 away from the end of catheter block 6 perforate flow out, and the sidewall of catheter body 3 offers side opening 2, the liquid being namely positioned at catheter body 3 outside can flow to catheter body 3 inside by side opening 2.
During the sub-conduit that the application embodiment of the present invention provides, sub-conduit moves along the seal wire in female conduit 7, until sub-conduit stretches out female conduit 7, if now the outer wall of sub-conduit contact with blood vessel cause blood vessel blockage and sub-conduit and contacts blood position side opening 2 and catheter body 3 away from catheter block 6 end between time, blood just can flow to catheter body 3 from the side opening 2 catheter body 3 sidewall, and then blood in catheter body 3 can flowing out away from the perforate the end of catheter block 6 from sub-conduit, achieve the circulation of blood, and then avoid sub-conduit by the situation of blood vessel blockage, prevent the situation causing acute ischemia, reduce operation risk.
In order to optimize technique scheme further, side opening 2 wherein on catheter body 3 sidewall can be multiple, namely on the sidewall of catheter body 3, multiple side opening 2 is offered, so when a side opening 2 is blocked by blood vessel, this side opening 2 can not circulate blood, now can continue through blood flow by other side opening 2.Certainly, the sidewall of catheter body 3 also only can offer a side opening 2, in this no limit.
Further, multiple side opening 2 can distribute along the circumference of catheter body 3, so can ensure that the blood of Ink vessel transfusing different parts all can be flow in catheter body 3 by side opening 2.Particularly, multiple side opening 2 can be uniformly distributed in the circumference of catheter body 3, and certain multiple side opening 2 also can be arranged in a row along the axis of catheter body 3, in this no limit.
Preferably, in multiple side opening 2 can at least two side openings 2 along catheter body 3 axial direction between distance be greater than zero, the blood so along the diverse location of the axis of catheter body 3 also can flow in catheter body 3.Certainly, multiple side opening 2 along catheter body 3 axial direction between distance also can be zero, in this no limit.
Particularly, side opening 2 can be 1-8cm apart from the distance of the end away from catheter block 6 of catheter body 3, and namely the center of side opening 2 is 1-8cm apart from catheter body 3 away from the distance of the end of catheter block 6, can be 1cm, 3cm, 5cm, 7cm etc.Specifically the distance of side opening 2 apart from the end away from catheter block 6 of catheter body 3 can be set according to practical situation.
The shape of side opening 2 and size also can set according to practical situation, and side opening 2 can be circular, square etc.
Pain is increased when contacting with internal blood vessel away from the end of catheter block 6 to prevent catheter body 3, soft 1 can also be fixedly connected with in one end away from catheter block 6 of catheter body 3, namely soft 1 is fixedly connected with one end away from catheter block 6 of catheter body 3, also through hole should be had for soft 1, and the through hole of soft 1 is communicated with away from the perforate on the end of catheter block 6 with catheter body 3, and blood like this flows through in soft 1 intravasation.Wherein, the material of catheter body 3 is generally nylon, and the material of soft 1 is generally polyurethane.So arrange soft 1, its material is softer, when contacting with blood vessel, can not increase the pain of patient.
In addition as shown in Figure 3, this sub-conduit can be RX type conduit, and catheter body 3 can be connected by push rod 4 with catheter block 6, and namely one end of push rod 4 is fixedly connected with one end of catheter body 3, and the other end of push rod 4 is fixedly connected with catheter block 6.Wherein, push rod 4 can be rustless steel push rod 4 or Nitinol push rod 4, and the external diameter of push rod 4 can be 0.5-0.7mm.As shown in Figure 4, when the outer wall of group conduit contacts with blood vessel and causes blood vessel blockage, blood just can flow to catheter body 3 from the side opening 2 catheter body 3 sidewall of RX type conduit, and then blood in catheter body 3 can flowing out away from the perforate the end of catheter block 6 from RX type conduit, achieve the circulation of blood.
Further, the push rod 4 of RX type conduit can be provided with two sounding marks 5, one of them sounding mark 5 is 95cm apart from catheter body 3 away from the distance of the end of catheter block 6, and another sounding mark 5 is 105cm apart from catheter body 3 away from the distance of the end of catheter block 6.
As shown in Figure 5, this sub-conduit can be also OTW type conduit, and catheter body 3 is directly fixedly connected with catheter block 6, and catheter block 6 has the inner chamber be communicated with catheter body 3 inside, and seal wire like this can be inner through entering catheter body 3 after the inner chamber of catheter block 6.As shown in Figure 6, when the outer wall of group conduit contacts with blood vessel and causes blood vessel blockage, blood just can flow to catheter body 3 from the side opening 2 catheter body 3 sidewall of OTW type conduit, and then blood in catheter body 3 can flowing out away from the perforate the end of catheter block 6 from OTW type conduit, achieve the circulation of blood.
Similarly, the catheter body 3 of OTW type conduit can be provided with two sounding marks 5, one of them sounding mark 5 is 95cm apart from its distance away from the end of catheter block 6, and another sounding mark 5 is 105cm apart from its distance away from the end of catheter block 6.
In order to ensure that the medical apparatus and instruments such as support, arteria coronaria sacculus can pass through from catheter body 3 inside, the internal diameter of catheter body 3 should be greater than 1.04mm.The external diameter of catheter body 3 should be greater than 1.17mm.
Based on the sub-conduit provided in above-described embodiment, present invention also offers a kind of primary and secondary and extend conduit, this primary and secondary extends conduit and comprises female conduit 7 and sub-conduit, and its neutron guide tube is any one sub-conduit in above-described embodiment.The sub-conduit in above-described embodiment is have employed, so the beneficial effect that this primary and secondary extends conduit please refer to above-described embodiment due to this primary and secondary extension conduit.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a seed tube, comprise catheter body (3) and catheter block (6), it is characterized in that, the end away from catheter block (6) of described catheter body (3) has perforate, and the sidewall of described catheter body (3) offers side opening (2).
2. sub-conduit according to claim 1, is characterized in that, the quantity of described side opening (2) is multiple.
3. sub-conduit according to claim 2, is characterized in that, multiple described side opening (2) distributes along the circumference of described catheter body (3).
4. the sub-conduit according to Claims 2 or 3, is characterized in that, at least two described side openings (2) along described catheter body (3) axial direction between distance be greater than zero.
5. the sub-conduit according to Claims 2 or 3, is characterized in that, described side opening (2) is 1-8cm apart from the distance of the end away from catheter block (6) of catheter body (3).
6. sub-conduit according to claim 1, is characterized in that, one end away from catheter block (6) of described catheter body (3) is also fixedly connected with soft head (1).
7. sub-conduit according to claim 1, it is characterized in that, described catheter body (3) is connected by push rod (4) with catheter block (6), one end of described push rod (4) is fixedly connected with one end of catheter body (3), and the other end of described push rod (4) is fixedly connected with described catheter block (6).
8. sub-conduit according to claim 1, is characterized in that, described catheter body (3) is directly fixedly connected with catheter block (6), and described catheter block (6) has the inner chamber be communicated with catheter body (3) inside.
9. sub-conduit according to claim 1, is characterized in that, the internal diameter of described catheter body (3) is greater than 1.04mm.
10. primary and secondary extends a conduit, and comprise female conduit (7) and sub-conduit, it is characterized in that, described sub-conduit is sub-conduit as claimed in any one of claims 1-9 wherein.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510250853.5A CN104800955A (en) | 2015-05-15 | 2015-05-15 | Son-mother extending catheter and son catheter thereof |
| CN201510847122.9A CN105582610A (en) | 2015-05-15 | 2015-11-26 | Child-mother extension catheter and sub-catheter thereof |
| CN201520956308.3U CN205145352U (en) | 2015-05-15 | 2015-11-26 | Primary and secondary extends pipe and sub - pipe thereof |
| CN201510846311.4A CN105288818A (en) | 2015-05-15 | 2015-11-26 | Mother-son extension catheter and son catheter thereof |
| CN201520963845.0U CN205235131U (en) | 2015-05-15 | 2015-11-26 | Primary and secondary extends pipe and sub - pipe thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510250853.5A CN104800955A (en) | 2015-05-15 | 2015-05-15 | Son-mother extending catheter and son catheter thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104800955A true CN104800955A (en) | 2015-07-29 |
Family
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Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510250853.5A Pending CN104800955A (en) | 2015-05-15 | 2015-05-15 | Son-mother extending catheter and son catheter thereof |
| CN201520956308.3U Active CN205145352U (en) | 2015-05-15 | 2015-11-26 | Primary and secondary extends pipe and sub - pipe thereof |
| CN201510847122.9A Pending CN105582610A (en) | 2015-05-15 | 2015-11-26 | Child-mother extension catheter and sub-catheter thereof |
| CN201520963845.0U Active CN205235131U (en) | 2015-05-15 | 2015-11-26 | Primary and secondary extends pipe and sub - pipe thereof |
| CN201510846311.4A Pending CN105288818A (en) | 2015-05-15 | 2015-11-26 | Mother-son extension catheter and son catheter thereof |
Family Applications After (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520956308.3U Active CN205145352U (en) | 2015-05-15 | 2015-11-26 | Primary and secondary extends pipe and sub - pipe thereof |
| CN201510847122.9A Pending CN105582610A (en) | 2015-05-15 | 2015-11-26 | Child-mother extension catheter and sub-catheter thereof |
| CN201520963845.0U Active CN205235131U (en) | 2015-05-15 | 2015-11-26 | Primary and secondary extends pipe and sub - pipe thereof |
| CN201510846311.4A Pending CN105288818A (en) | 2015-05-15 | 2015-11-26 | Mother-son extension catheter and son catheter thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN104800955A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105288818A (en) * | 2015-05-15 | 2016-02-03 | 孙英贤 | Mother-son extension catheter and son catheter thereof |
| CN106139361A (en) * | 2016-07-29 | 2016-11-23 | 武汉大学 | A kind of blood vessel guiding catheter and fixing means thereof |
| WO2017053663A1 (en) | 2015-09-23 | 2017-03-30 | Medtronic Vascular Inc. | Guide extension catheter with perfusion openings |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113365685B (en) * | 2019-02-06 | 2023-07-21 | 株式会社钟化 | Extension catheter and method of manufacturing the same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5040548A (en) * | 1989-06-01 | 1991-08-20 | Yock Paul G | Angioplasty mehtod |
| EP1670523B1 (en) * | 2003-10-08 | 2018-10-03 | Medical Components, Inc. | Co-axial tapered catheter |
| CN2783951Y (en) * | 2005-02-01 | 2006-05-31 | 维科医疗器械(苏州)有限公司 | Self-expanding type bracket coaxial releasing system for reclaiming protective umbrella |
| US8251942B1 (en) * | 2011-12-19 | 2012-08-28 | Ibrahim Rashid Al-Rashdan | System and method for removing blood containing contrast dye |
| CN202538130U (en) * | 2012-03-16 | 2012-11-21 | 辛莲 | PTCA (percutaneous transluminal coronary angioplasty) balloon dilation catheter with side openings |
| CN104548315B (en) * | 2015-02-10 | 2018-06-26 | 湖南埃普特医疗器械有限公司 | A kind of interposing catheter |
| CN104800955A (en) * | 2015-05-15 | 2015-07-29 | 湖南埃普特医疗器械有限公司 | Son-mother extending catheter and son catheter thereof |
-
2015
- 2015-05-15 CN CN201510250853.5A patent/CN104800955A/en active Pending
- 2015-11-26 CN CN201520956308.3U patent/CN205145352U/en active Active
- 2015-11-26 CN CN201510847122.9A patent/CN105582610A/en active Pending
- 2015-11-26 CN CN201520963845.0U patent/CN205235131U/en active Active
- 2015-11-26 CN CN201510846311.4A patent/CN105288818A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105288818A (en) * | 2015-05-15 | 2016-02-03 | 孙英贤 | Mother-son extension catheter and son catheter thereof |
| WO2017053663A1 (en) | 2015-09-23 | 2017-03-30 | Medtronic Vascular Inc. | Guide extension catheter with perfusion openings |
| CN106139361A (en) * | 2016-07-29 | 2016-11-23 | 武汉大学 | A kind of blood vessel guiding catheter and fixing means thereof |
| CN106139361B (en) * | 2016-07-29 | 2022-07-19 | 武汉大学 | Blood vessel guiding catheter and fixing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105582610A (en) | 2016-05-18 |
| CN205235131U (en) | 2016-05-18 |
| CN205145352U (en) | 2016-04-13 |
| CN105288818A (en) | 2016-02-03 |
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| C06 | Publication | ||
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Yingxian Inventor after: Ge Junbo Inventor after: Wei Da Inventor before: Sun Yingxian Inventor before: Wei Da |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: SUN YINGXIAN WEI DA TO: SUN YINGXIAN GE JUNBO WEI DA |
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| EXSB | Decision made by sipo to initiate substantive examination | ||
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Application publication date: 20150729 |