CN213031622U

CN213031622U - Multi-path saccule catheter

Info

Publication number: CN213031622U
Application number: CN202021073087.2U
Authority: CN
Inventors: 刘存发; 张秀军
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-04-23
Anticipated expiration: 2030-06-12

Abstract

A multi-diameter saccule conduit belongs to the medical appliance, the conduit is a plurality of longitudinal pipelines which are parallel to each other, the middle pipeline is a guide wire cavity, and the outer wall of the guide wire cavity is provided with at least two longitudinal saccule injection conduits which are parallel to the guide wire cavity; the guide wire cavity is provided with a guide wire cavity inlet and a guide wire cavity outlet; the outer side of the tube wall of the head of the wire guide cavity is wrapped with at least two mutually sleeved balloons, the head of each balloon injection catheter is respectively inserted into one balloon, each balloon injection catheter is provided with an injection inlet and an injection outlet, and the balloon injection outlets are respectively communicated with one balloon. The utility model has the advantages that: when the balloon catheter is used, the balloon catheter is introduced once to realize the gradual expansion of at least two diameters, so that the medical expenditure is reduced, the treatment procedure is simplified, and the interlayer is reduced.

Description

Multi-path saccule catheter

Technical Field

The utility model belongs to a medical appliance, in particular to a multipath saccule conduit.

Background

In current vascular intervention, the most common methods for stenotic or occlusive lesions include: pure balloon dilatation; balloon dilatation and stent implantation; drug-loaded balloon dilatation, and the like. Either method requires balloon dilation as a basis. To avoid vessel rupture and flow-restrictive dissection, the most common method is to use balloons of different diameters for gradual dilation, thus often requiring 2 to 3, or even 4 balloons.

As mentioned above, the current primary method of treating vascular occlusions or stenotic lesions is balloon dilatation. The balloon catheter used is primarily a low compliance balloon. An ideal balloon catheter is characterized by toughness (not prone to rupture under high pressure); low compliance (maintaining correct form at high pressure); good trafficability, etc. The balloon material is a low compliance plastic polymer (e.g., polyethylene terephthalate). The selection of the diameter of the balloon catheter is the key of blood vessel treatment, and the balloon with small diameter is selected for pre-expansion, so that the small balloon expansion does not cause acute complications such as rupture and the like. The direct use of a large balloon for significant over-dilation can lead to acute complications such as vessel rupture or dissection. Thus, gradual dilation is a safe and feasible treatment, often requiring 2 to 3 balloons to be used. The ultimate goal of dilation is to achieve vessel patency by allowing a stenotic or occluded lumen to reach a normal diameter or slightly dilate around 10%. The existing balloon catheters are all single in diameter, 2 to 3 balloon catheters are needed to be used when lesions are gradually dilated, and the specific working principle is as follows: firstly, a guide wire passes through a diseased blood vessel; the method comprises the following steps of firstly, introducing a balloon catheter along a guide wire, secondly, expanding the balloon (2-3 balloons are required to be used for expansion in the third step, the medical expenditure of 2-3 balloon catheters is saved, the guide wire is required to be reserved when the balloon catheter is exchanged each time, the guide wire is withdrawn from a small balloon, and then the guide wire is introduced into a large balloon for expansion along the guide wire.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome foretell defect, provide a multipath sacculus pipe to the use quantity of sacculus in the greatly reduced art reduces the medical expense, can reduce interbedded production simultaneously.

The utility model aims at realizing through the following technical scheme: a multi-path balloon catheter characterized by: it comprises a catheter and a balloon; the catheter is a plurality of longitudinal pipelines which are parallel to each other, wherein the middle pipeline is a guide wire cavity, and the outer wall of the guide wire cavity is provided with at least two longitudinal balloon injection catheters which are parallel to the guide wire cavity; the tail part of the wire guide cavity is provided with a wire guide cavity inlet, and the head part of the wire guide cavity is provided with a wire guide cavity outlet; the outer side of the tube wall of the head of the wire guide cavity is wrapped with at least two mutually sleeved balloons, the head of each balloon injection catheter is respectively inserted into one balloon, and a balloon injection outlet at the head of each balloon injection catheter is respectively communicated with one balloon; the tail part of each sacculus injection catheter is provided with a sacculus injection inlet.

The outer wall of the tail part of the catheter is provided with a near-end mark and a far-end mark, the balloon is positioned between the near-end mark and the far-end mark, and the inner sides of the near-end metal mark line and the far-end metal mark line are fused and fixed with the outer wall of the guide wire cavity.

The balloon injection inlet and the guide wire cavity inlet can be connected with a spiral injector.

The utility model has the advantages and beneficial effects that: when the balloon catheter is used, the balloon catheter is introduced once to realize the gradual expansion of at least two diameters, so that the medical expenditure is reduced, the treatment procedure is simplified, and the interlayer is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a reference diagram of the working principle of the present invention.

Wherein:

1-catheter, 2-balloon, 3-guidewire cavity outlet, 4-guidewire cavity inlet, 5-near end marking line, 6-far end marking line, 7-primary balloon, 8-secondary balloon, 9-primary balloon injection catheter, 10-secondary balloon injection catheter, 11-primary balloon injection inlet, 12-primary balloon injection outlet, 13-secondary balloon injection inlet, 14-secondary balloon injection outlet, and 15-guidewire cavity.

Detailed Description

Example (b): as shown, the present embodiment takes a double-diameter balloon catheter as an example. A double-diameter balloon catheter comprises a catheter 1 and a balloon 2; the catheter 1 is three longitudinal pipelines which are parallel to each other, wherein the middle pipeline is a guide wire cavity 15, the tail part of the guide wire cavity 15 is provided with a guide wire cavity inlet 4, the head part of the guide wire cavity 15 is provided with a guide wire cavity outlet 3 for a guide wire to pass through, the outer wall of the head part of the guide wire cavity 15 is provided with a near-end metal mark 5 and a far-end metal mark 6 which are used for positioning a balloon under X-ray, two mutually sleeved low-compliance balloons with different diameters are positioned between the near-end metal mark 5 and the far-end metal mark 6, are wrapped outside the tube wall of the head part of the guide wire cavity 15 and are fused and fixed with the outer wall of the guide wire cavity 15 at the inner sides of the near-end metal mark 5 and the far-end metal mark 6, and the two balloons with different diameters are respectively a primary; two longitudinal plastic balloon injection catheters with hydrophilic patterns, namely a primary balloon injection catheter 9 and a secondary balloon injection catheter 10, which are parallel to the guide wire cavity 15 are arranged on the outer wall of the guide wire cavity 15; the head of the primary balloon injection catheter 9 is provided with a primary balloon injection outlet 12, the tail of the primary balloon injection catheter 9 is provided with a primary balloon injection inlet 11, the head of the secondary balloon injection catheter 10 is provided with a secondary balloon injection outlet 14, and the tail of the secondary balloon injection catheter 10 is provided with a secondary balloon injection inlet 13; the head of the primary balloon injection catheter 9 is inserted into the primary balloon 7, the primary balloon injection outlet 12 is communicated with the primary balloon 7, the head of the secondary balloon injection catheter 10 is inserted into the secondary balloon 8, and the secondary balloon injection outlet 14 is communicated with the secondary balloon 8; the balloon catheter head consists of three catheters with single cavities, the head parts of a primary balloon injection catheter 9, a secondary balloon injection catheter 10 and a guide wire tube 15 are respectively arranged, and a primary balloon injection inlet 11, a secondary balloon injection inlet 13 and a guide wire cavity inlet 4 of the three catheter head parts can be connected with a spiral injector.

The working principle is as follows:

taking the case of arterial occlusive lesions, the method of use is as follows:

1. passing the guide wire through the lesion; 2. guiding the balloon catheter along the guide wire; 3. injecting contrast agent saline water through an injection inlet of the primary balloon catheter to expand the primary balloon; 4. injecting contrast agent saline through an injection inlet of the secondary balloon catheter to expand the secondary balloon; 5. and (5) sucking back the saline solution of the contrast agent, retracting the saccule and withdrawing the lesion.

Claims

1. A multi-path balloon catheter characterized by: it comprises a catheter and a balloon; the catheter is a plurality of longitudinal pipelines which are parallel to each other, wherein the middle pipeline is a guide wire cavity, and the outer wall of the guide wire cavity is provided with at least two longitudinal balloon injection catheters which are parallel to the guide wire cavity; the tail part of the wire guide cavity is provided with a wire guide cavity inlet, and the head part of the wire guide cavity is provided with a wire guide cavity outlet; the outer side of the tube wall of the head of the wire guide cavity is wrapped with at least two mutually sleeved balloons, the head of each balloon injection catheter is respectively inserted into one balloon, and a balloon injection outlet at the head of each balloon injection catheter is respectively communicated with one balloon; the tail part of each sacculus injection catheter is provided with a sacculus injection inlet.

2. The multipath balloon catheter of claim 1, wherein: the outer wall of the tail part of the catheter is provided with a near-end mark and a far-end mark, the balloon is positioned between the near-end mark and the far-end mark, and the inner sides of the near-end metal mark line and the far-end metal mark line are fused and fixed with the outer wall of the guide wire cavity.

3. The multipath balloon catheter of claim 1, wherein: the balloon injection inlet and the guide wire cavity inlet can be connected with a spiral injector.