CN111420247A

CN111420247A - Novel sacculus expansion pipe

Info

Publication number: CN111420247A
Application number: CN202010264018.8A
Authority: CN
Inventors: 孙铃; 王庆捷; 陈新; 刘宇
Original assignee: Changzhou Second Peoples Hospital
Current assignee: Changzhou Second Peoples Hospital
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2020-07-17

Abstract

The invention discloses a novel balloon dilatation catheter which comprises an inflatable balloon, a shuttle-shaped balloon catheter, a groove, a hose and a connecting pipe, wherein the shuttle-shaped balloon catheter is arranged below the inflatable balloon, the groove is formed in the outer side surface of the shuttle-shaped balloon catheter, the connecting pipe is arranged below the shuttle-shaped balloon catheter, and the hose is sleeved outside the connecting pipe. The invention can fix and seal the embolus in the groove on the shuttle-shaped saccule conduit in the treatment process, then the embolus is discharged out of the body along with the saccule dilation conduit, and the invention has simple structure, small pushing resistance and smooth operation, can reduce the distal embolism and is beneficial to reducing the occurrence of no re-flow.

Description

Novel sacculus expansion pipe

Technical Field

The invention relates to the technical field of medical instruments, in particular to a novel balloon dilatation catheter.

Background

Coronary artery no-reflow is a common complication of coronary heart disease interventional therapy, the pathogenesis of the coronary artery no-reflow is that in the process of saccule expansion atheromatous plaque lesion and thrombotic lesion, blood clots or atheromatous plaque is broken and falls off and enters a far-end blood vessel along with the direction of blood flow to block the blood supply of cardiac microcirculation, myocardial infarction can be aggravated and death can be seriously caused, a far-end protector can be adopted to filter and collect emboli such as plaque and thrombus falling off in the operation process in the peripheral blood vessel interventional process, before the operation, the far-end protection device is firstly sent to the far end away from an operator, a working device is operated at the near end away from the operator, when plaque falls off or thrombus is formed in the operation, the far-end protector filters and collects thrombus to avoid the blockage of the thrombus.

But the diameter of the coronary artery is small, and the coronary artery cannot pass through the distal protector particularly after severe coronary stenosis is combined; the invention aims to solve the technical problem of providing a balloon dilatation catheter capable of partially intercepting and recovering plaque or embolus dropped from a blood vessel, which can reduce distal embolism and is beneficial to reducing no-reflow.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a novel balloon dilatation catheter.

The invention realizes the purpose through the following technical scheme:

the utility model provides a novel sacculus expansion pipe, is including aerifing sacculus, shuttle-type sacculus pipe, recess, hose, connecting pipe, the below of aerifing the sacculus is provided with shuttle-type sacculus pipe, the outside surface shaping of shuttle-type sacculus pipe is fluted, the below of shuttle-type sacculus pipe is provided with the connecting pipe, the outside cover of connecting pipe is equipped with the hose.

Preferably: the shuttle-shaped balloon catheter and the inflatable balloon are integrally formed.

By the arrangement, the shuttle-shaped balloon catheter and the inflatable balloon can be processed and manufactured conveniently through integral forming.

Preferably: the connecting pipe and the shuttle-shaped balloon catheter are integrally formed.

So set up, be convenient for interconnect through integrated into one piece connect fixedly between the two.

Preferably: the inflatable balloon, the shuttle-shaped balloon catheter, the hose and the connecting pipe are all made of TPE materials, and the surface of the inflatable balloon is provided with a hydrophilic coating to reduce resistance.

So set up, adopt the TPE material to make that thermal stability is good, the transparency is high, processing technology is simple.

Preferably: the length of the hose is 100mm greater than the sum of the lengths of the inflatable balloon and the shuttle-shaped balloon catheter.

By the arrangement, the inflatable balloon and the shuttle-shaped balloon catheter can completely enter the hose when being contracted.

Compared with the prior art, the invention has the following beneficial effects:

the embolus can be fixedly sealed in the groove on the shuttle-shaped balloon catheter in the treatment process through the balloon dilatation catheter, and then is discharged out of the body along with the balloon dilatation catheter, and the balloon dilatation catheter is simple in structure, small in pushing resistance and smooth in operation, can reduce the embolism at the far end, and is favorable for reducing the occurrence of no backflow.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a first schematic structural view of a novel balloon dilation catheter of the present invention;

FIG. 2 is a second schematic structural view of the novel balloon dilation catheter of the present invention;

FIG. 3 is a schematic view of the connection structure of the inflatable balloon, the shuttle-shaped balloon catheter and the connecting tube of the novel balloon dilatation catheter of the invention;

FIG. 4 is a schematic view of the internal structure of the inflatable balloon, the shuttle-shaped balloon catheter and the connecting tube of the novel balloon dilatation catheter of the invention;

fig. 5 is a perspective view of a novel balloon dilation catheter tube of the present invention.

The reference numerals are explained below:

1. inflating the balloon; 2. a shuttle balloon catheter; 3. a groove; 4. a hose; 5. and (4) connecting the pipes.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be further described with reference to the accompanying drawings in which:

as shown in fig. 1-5, a novel balloon dilatation catheter comprises an inflatable balloon 1, a shuttle-shaped balloon catheter 2, a groove 3, a hose 4 and a connecting pipe 5, wherein the shuttle-shaped balloon catheter 2 is arranged below the inflatable balloon 1, the groove 3 is formed in the outer side surface of the shuttle-shaped balloon catheter 2, the connecting pipe 5 is arranged below the shuttle-shaped balloon catheter 2, and the hose 4 is sleeved outside the connecting pipe 5.

Preferably: the shuttle-shaped balloon catheter 2 and the inflatable balloon 1 are integrally formed, and the shuttle-shaped balloon catheter 2 and the inflatable balloon 1 are convenient to process and manufacture through the integral forming; the connecting pipe 5 and the shuttle-shaped balloon catheter 2 are integrally formed, and the two which are mutually connected are conveniently connected and fixed through the integral forming; the inflatable balloon 1, the shuttle-shaped balloon catheter 2, the hose 4 and the connecting pipe 5 are all made of TPE materials, the surface of the inflatable balloon 1 is provided with a hydrophilic coating to reduce resistance, and the thermoplastic elastomer (TPE) materials are adopted to make the inflatable balloon with good thermal stability, high transparency and simple processing technology; the length of the hose 4 is 100mm larger than the sum of the lengths of the inflatable balloon 1 and the shuttle-shaped balloon catheter 2, so that the inflatable balloon 1 and the shuttle-shaped balloon catheter 2 can completely enter the hose 4 when being contracted.

The working principle and the using process of the invention are as follows: in the peripheral blood vessel intervention process, a far-end protector can be adopted to filter and collect emboli such as plaques, thrombus and the like falling off in the operation process; before an operation, the device is firstly sent into an arterial blood vessel with plaque accumulated in a patient, an operation instrument is operated outside the patient, when the plaque falls off or thrombus is formed in the operation, a connecting pipe 5 is pushed, so that an inflatable balloon 1 and a shuttle-shaped balloon catheter 2 are separated from a hose 4 and slide forwards, an external instrument inflates the inflatable balloon 1 and the shuttle-shaped balloon catheter 2 through the connecting pipe 5, the inflatable balloon 1 and the shuttle-shaped balloon catheter 2 are expanded and then fall off, and blocks partial embolus, a groove 3 on the outer surface of the shuttle-shaped balloon catheter 2 can contain and store the separated plaque, thrombus and the like, after the inflatable balloon 1 is expanded, the blood vessel is sealed to prevent the embolus from falling off towards the far end, the hose 4 is pushed forwards to extend, so that the shuttle-shaped balloon catheter 2 returns to the hose 4 again, and then the embolus such as plaque, thrombus and the like in the groove 3 on the inflatable balloon 1 are sealed and fixed, then the pressure in the tail end inflating saccule 1 is removed, if the flexible pipe 4 fails to extend forwards, the pressure in the tail end inflating saccule 1 is removed, then the flexible pipe 4 is retracted, and finally the device is pulled out, thus finishing the cleaning work of the embolus.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. A novel balloon dilatation catheter is characterized in that: including aerifing sacculus (1), shuttle-type sacculus pipe (2), recess (3), hose (4), connecting pipe (5), the below of aerifing sacculus (1) is provided with shuttle-type sacculus pipe (2), the outside surface shaping of shuttle-type sacculus pipe (2) has recess (3), the below of shuttle-type sacculus pipe (2) is provided with connecting pipe (5), the outside cover of connecting pipe (5) is equipped with hose (4).

2. The novel balloon dilation catheter according to claim 1, wherein: the shuttle-shaped balloon catheter (2) and the inflatable balloon (1) are integrally formed.

3. The novel balloon dilation catheter according to claim 1, wherein: the connecting pipe (5) and the shuttle-shaped balloon catheter (2) are integrally formed.

4. The novel balloon dilation catheter according to claim 1, wherein: the inflatable balloon (1), the shuttle-shaped balloon catheter (2), the hose (4) and the connecting pipe (5) are all made of TPE materials, and a hydrophilic coating is arranged on the surface of the inflatable balloon (1) to reduce resistance.

5. The novel balloon dilation catheter according to claim 1, wherein: the length of the hose (4) is 100mm greater than the sum of the lengths of the inflatable balloon (1) and the shuttle-shaped balloon catheter (2).