CN205145352U - Primary and secondary extends pipe and sub - pipe thereof - Google Patents
Primary and secondary extends pipe and sub - pipe thereof Download PDFInfo
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- CN205145352U CN205145352U CN201520956308.3U CN201520956308U CN205145352U CN 205145352 U CN205145352 U CN 205145352U CN 201520956308 U CN201520956308 U CN 201520956308U CN 205145352 U CN205145352 U CN 205145352U
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- conduit
- catheter body
- side opening
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Abstract
The utility model discloses a primary and secondary extends pipe and sub - pipe thereof, sub - pipe include the pipe body and pipe seat, the tip of keeping away from the pipe seat of the pipe body has the trompil, just the side opening has been seted up on the lateral wall of the pipe body. Sub - pipe removes along the seal wire in female pipe, stretch out female pipe until sub - pipe, this moment is if the outer wall of sub - pipe and blood vessel contact lead to the blood vessel to block up and sub - pipe and vascular contacting area are located that side opening and pipe personally experience sth. Part of the body when keeping away from between the tip of pipe seat, blood alright advance the pipe body with the side opening stream from the wall of pipe side, and then the blood in the pipe body can brother's son's pipe the trompil of keeping away from on the tip of pipe seat flow, the circulation of blood has been realized, and then the condition that sub - pipe blockked up the blood vessel has been avoided, the acute condition that lacks blood has been prevented to arouse, the operation risk has been reduced.
Description
This application claims and submitted on 05 15th, 2015 the priority that Patent Office of the People's Republic of China, application number are 201510250853.5, denomination of invention be the Chinese patent application of " a kind of primary and secondary extension conduit and sub-conduit thereof " to, its full content combines in this application by reference.
Technical field
This utility model relates to technical field of medical instruments, more particularly, relates to a kind of primary and secondary and extends conduit and sub-conduit thereof.
Background technology
Percutaneous coronary intervention (pci) (PercutaneousCoronaryIntervention, 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.
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.
Utility model content
In view of this, first object of the present utility model 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 utility model 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, this utility model 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, 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.
The sub-conduit that this utility model provides comprises catheter body and catheter block, and catheter block 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.
During the sub-conduit that application this utility model provides, 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, this utility model additionally provides a kind of primary and secondary and extends conduit, and 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 this utility model embodiment 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 embodiments more of the present utility model, 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;
The structural representation of the RX type conduit that Fig. 2 provides for this utility model embodiment;
The blood flow schematic diagram of the RX type conduit that Fig. 3 provides for this utility model embodiment;
In FIG:
01-catheter body, 02-push rod, 03-catheter block;
In Fig. 2-Fig. 3:
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 utility model 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 utility model 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 this utility model embodiment, be clearly and completely described the technical scheme in this utility model embodiment, obviously, described embodiment is only this utility model part embodiment, instead of whole embodiments.Based on the embodiment in this utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of this utility model protection.
Refer to Fig. 2-Fig. 3, the sub-conduit that this utility model embodiment 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 application this utility model embodiment 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 2, 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 3, 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.
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, this utility model additionally provides a kind of primary and secondary and extends conduit, and 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 this utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, this utility model 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 (9)
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, the internal diameter of described catheter body (3) is greater than 1.04mm.
9. primary and secondary extends a conduit, and comprise female conduit (7) and sub-conduit, it is characterized in that, described sub-conduit is the sub-conduit such as according to any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520956308.3U CN205145352U (en) | 2015-05-15 | 2015-11-26 | Primary and secondary extends pipe and sub - pipe thereof |
Applications Claiming Priority (3)
| 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 |
| CN2015102508535 | 2015-05-15 | ||
| CN201520956308.3U CN205145352U (en) | 2015-05-15 | 2015-11-26 | Primary and secondary extends pipe and sub - pipe thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205145352U true CN205145352U (en) | 2016-04-13 |
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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 |
| CN201520963845.0U Active CN205235131U (en) | 2015-05-15 | 2015-11-26 | Primary and secondary extends pipe and sub - pipe thereof |
| CN201520956308.3U Active CN205145352U (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 |
| CN201510847122.9A Pending CN105582610A (en) | 2015-05-15 | 2015-11-26 | Child-mother extension catheter and sub-catheter thereof |
Family Applications Before (2)
| 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 |
| CN201520963845.0U Active CN205235131U (en) | 2015-05-15 | 2015-11-26 | Primary and secondary extends pipe and sub - pipe thereof |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510846311.4A Pending CN105288818A (en) | 2015-05-15 | 2015-11-26 | Mother-son extension catheter and son catheter thereof |
| CN201510847122.9A Pending CN105582610A (en) | 2015-05-15 | 2015-11-26 | Child-mother extension catheter and sub-catheter thereof |
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| Country | Link |
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| CN (5) | CN104800955A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| EP3352832B1 (en) | 2015-09-23 | 2023-04-19 | Medtronic Vascular Inc. | Guide extension catheter with perfusion openings |
| CN106139361B (en) * | 2016-07-29 | 2022-07-19 | 武汉大学 | Blood vessel guiding catheter and fixing method thereof |
| US20220126067A1 (en) * | 2019-02-06 | 2022-04-28 | Kaneka Corporation | Extension catheter and method for producing 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 |
| CA2541789C (en) * | 2003-10-08 | 2014-02-04 | 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 CN201520963845.0U patent/CN205235131U/en active Active
- 2015-11-26 CN CN201520956308.3U patent/CN205145352U/en active Active
- 2015-11-26 CN CN201510846311.4A patent/CN105288818A/en active Pending
- 2015-11-26 CN CN201510847122.9A patent/CN105582610A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN105582610A (en) | 2016-05-18 |
| CN105288818A (en) | 2016-02-03 |
| CN104800955A (en) | 2015-07-29 |
| CN205235131U (en) | 2016-05-18 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |