CN107536633B

Movatterモバイル変換

Info

Publication number: CN107536633B
Application number: CN201710748175.4A
Authority: CN
Inventors: 王凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-08-28
Filing date: 2017-08-28
Publication date: 2021-03-19
Anticipated expiration: 2037-08-28
Also published as: CN107536633A

Abstract

The utility model provides a sacculus expansion thrombectomy device, includes that the suit is interior sleeve pipe and outer tube together, characterized by: the inner sleeve is provided with a guide wire hole which penetrates through the inner sleeve from front to back, and a guide wire is placed in the guide wire hole; a spring wire is arranged in an interlayer at the front ends of the outer sleeve and the inner sleeve, the spring wire is spirally wound outside the inner sleeve, two ends of the spring wire are respectively and fixedly connected with the outer sleeve and the inner sleeve, the section of the inner sleeve outside the spring wire adopts a sleeve-shaped elastic membrane, and the front end of the elastic membrane and the front end of the inner sleeve are fixedly connected together in a closed manner; a balloon is sleeved outside the outer sleeve at the rear part of the elastic membrane, a water filling pipeline communicated with the balloon is arranged in the wall of the outer sleeve, and a valve and a joint are arranged at the outer end of the water filling pipeline; the balloon is used for friction type cleaning of the inner wall of the blood vessel, so that thrombus which cannot be cleaned by some spring wires can be eliminated, and the thrombus can be cleaned more cleanly.

Description

Balloon dilatation thrombus taking device

Technical Field

The invention relates to the technical field of blood vessel thrombus taking instruments, in particular to a balloon dilatation thrombus taking device.

Background

When the steel core is pulled backwards, the spring wire is compressed into a disc shape due to the relative movement of the steel core and the sleeve, thrombus on the inner wall of the blood vessel is scraped by the disc-shaped spring wire, the tools enter the blood vessel and are detected and inserted by the front end of the flexible steel core, the blindness is larger, when the condition of some complicated thrombus is met, the front end of the blood vessel wall is easy to poke, causing accidents, the structure of this type of bolt removal tool is in need of improvement.

Disclosure of Invention

In order to solve the problems, the invention aims to provide a balloon dilatation embolectomy device.

The technical scheme of the invention is as follows: the utility model provides a sacculus expansion thrombectomy device, includes that the suit is interior sleeve pipe and outer tube together, characterized by: the inner sleeve is provided with a guide wire hole which penetrates through the inner sleeve from front to back, and a guide wire is placed in the guide wire hole; a spring wire is arranged in an interlayer at the front ends of the outer sleeve and the inner sleeve, the spring wire is spirally wound outside the inner sleeve, two ends of the spring wire are respectively and fixedly connected with the outer sleeve and the inner sleeve, the section of the inner sleeve outside the spring wire adopts a sleeve-shaped elastic membrane, and the front end of the elastic membrane and the front end of the inner sleeve are fixedly connected together in a closed manner; a balloon is sleeved outside the outer sleeve at the rear part of the elastic membrane, a water filling pipeline communicated with the balloon is arranged in the wall of the outer sleeve, and a valve and a joint are arranged at the outer end of the water filling pipeline;

the front end and the tail part of the inner sleeve are both provided with a closed flap valve matched with the diameter of the guide wire; the side wall of the tail section of the outer sleeve is provided with a longitudinal strip-shaped opening, the side wall of the inner sleeve corresponding to the opening extends outwards to form an operating handle, and the operating handle drives the inner sleeve to slide along the axial direction.

Preferably, the front end of the guide wire is in the shape of a pigtail.

Preferably, the closed flap valve is made of an elastic material, and the guide wire can close two ends of the inner sleeve after being drawn out.

The invention has the technical effects that:

the balloon dilatation thrombus removal device is provided with the guide wire and the inner and outer sleeves, so that the thrombus removal device can be guided into a blood vessel through the guide wire, the end part of the guide wire is softer, the blood vessel cannot be damaged, and the accident of poking the blood vessel can be avoided; the sacculus has been increased simultaneously, and the spring wire is responsible for removing the old thrombus in the blood vessel, and the sacculus is responsible for removing the new thrombus that forms in the blood vessel, and the spring wire is responsible for scraping the blood vessel inner wall, and the sacculus is responsible for carrying out the friction formula clearance to the blood vessel inner wall owing to can produce the deformation along with vascular shape, can solve some spring wires and clear up the thrombus that can not reach, and the two combines the operation, respectively gets the length, and nimble application can be with the cleaner of thrombus clearance.

Drawings

FIG. 1 is a schematic front sectional view of the balloon dilation embolectomy device;

FIG. 2 is a partially enlarged view of one of the portions of FIG. 1;

FIG. 3 is a second partial enlarged view of FIG. 1;

FIG. 4 is a third schematic view of the enlarged portion of FIG. 1;

in the figure, 1, a guide wire, 2, a spring wire, 3, an elastic membrane, 4, an inner sleeve, 5, a balloon, 6, a joint, 7, an operating handle, 8, a strip-shaped opening, 9, an outer sleeve, 10, a water filling pipeline, 11, a valve and 12 are closed flap valves.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The first embodiment is as follows: referring to fig. 1-4, a balloon dilatation embolectomy device in the figures comprises an inner sleeve and an outer sleeve which are sleeved together, wherein the inner sleeve is provided with a guide wire hole which penetrates through the inner sleeve from front to back, and a guide wire is arranged in the guide wire hole; a spring wire is arranged in an interlayer at the front ends of the outer sleeve and the inner sleeve, the spring wire is spirally wound outside the inner sleeve, two ends of the spring wire are respectively and fixedly connected with the outer sleeve and the inner sleeve, the section of the inner sleeve outside the spring wire adopts a sleeve-shaped elastic membrane, and the front end of the elastic membrane and the front end of the inner sleeve are fixedly connected together in a closed manner; a balloon is sleeved outside the outer sleeve at the rear part of the elastic membrane, a water filling pipeline communicated with the balloon is arranged in the wall of the outer sleeve, and a valve and a joint are arranged at the outer end of the water filling pipeline;

the front end and the tail part of the inner sleeve are both provided with a closed flap valve matched with the diameter of the guide wire; the side wall of the tail section of the outer sleeve is provided with a longitudinal strip-shaped opening, an operating handle extends outwards from the side wall of the inner sleeve corresponding to the opening, the operating handle drives the inner sleeve to slide along the axial direction, and the operating handle can drive the inner sleeve to pull and move, so that the front end spring wire is adjusted to be disc-shaped or linear.

The front end of the guide wire is in the shape of a pigtail.

The sealing flap valve is made of elastic materials, the two ends of the inner sleeve can be sealed after the guide wire is drawn out, and the flap valve has the function of blocking the outflow of blood from the inner sleeve after the guide wire is drawn out.

The operation process of the embolectomy device comprises the following steps:

when the endoscope is used, the guide wire is firstly sent into a blood vessel under the developing state, after the front end of the guide wire crosses a thrombus part, the combination of the inner sleeve and the outer sleeve is sent into the blood vessel along the guide wire, and after the spring wire and the saccule at the front end of the combination cross the thrombus part.

On one hand, the operating handle at the tail part can be operated to pull the inner sleeve to compress and expand the spring wire at the front end into a disc shape, the inner sleeve and the outer sleeve are locked and pulled simultaneously, and the disc-shaped spring wire is used for scraping thrombus on the inner wall of the blood vessel until the thrombus is scraped.

On the other hand, the tail joint can be connected with an injector, physiological saline is injected, the balloon is inflated, then the inner sleeve and the outer sleeve are pulled simultaneously, the inflated balloon can rub the inner wall of the blood vessel, and newly formed thrombus on the inner wall of the blood vessel is rubbed off; or in some parts with irregular cross section shapes, the shape of the balloon can change along with the change of the cross section shapes of the blood vessels, and thrombus which cannot be removed by the spring wire can be removed.

The spring wire and the balloon can also be used simultaneously, and the selection can be flexibly carried out according to the situation.

Claims

1. The utility model provides a sacculus expansion thrombectomy device, includes that the suit is interior sleeve pipe and outer tube together, characterized by: the inner sleeve is provided with a guide wire hole which penetrates through the inner sleeve from front to back, and a guide wire is placed in the guide wire hole; a spring wire is arranged in an interlayer at the front ends of the outer sleeve and the inner sleeve, the spring wire is spirally wound outside the inner sleeve, two ends of the spring wire are respectively and fixedly connected with the outer sleeve and the inner sleeve, the section of the inner sleeve outside the spring wire adopts a sleeve-shaped elastic membrane, and the front end of the elastic membrane and the front end of the inner sleeve are fixedly connected together in a closed manner; a balloon is sleeved outside the outer sleeve at the rear part of the elastic membrane, a water filling pipeline communicated with the balloon is arranged in the wall of the outer sleeve, and a valve and a joint are arranged at the outer end of the water filling pipeline; the saccule is used for friction type cleaning of newly formed thrombus on the inner wall of the blood vessel;

2. The balloon dilation embolectomy device of claim 1, wherein: the front end of the guide wire is in the shape of a pigtail.

3. The balloon dilation embolectomy device of claim 1, wherein: the sealing flap valve is made of elastic materials, and the two ends of the inner sleeve can be sealed after the guide wire is drawn out.