CN214104531U

CN214104531U - Mechanical thrombus removing device

Info

Publication number: CN214104531U
Application number: CN202022829681.6U
Authority: CN
Inventors: 王泱; 杨青林; 孟瑶; 宋浩; 徐丽娜
Original assignee: Jiangsu Jintai Medical Instrument Co ltd
Current assignee: Jiangsu Jintai Medical Instrument Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-09-03
Anticipated expiration: 2030-11-30

Abstract

The utility model discloses a thrombus mechanical clearing device belongs to thrombus and clears away technical field. The mechanical thrombus removing device comprises a reperfusion catheter and a negative pressure suction pump, and the negative pressure suction pump is communicated with a Y-shaped hemostatic valve on a catheter seat at the tail end of the reperfusion catheter through an air pipe; a separator passes through the reperfusion catheter; the reperfusion catheter is passed through the vessel to the thrombus site via a guidewire, delivery MAX catheter and dilator. This thrombus mechanical cleaning device simple structure, the operation is high-efficient convenient, can clear away fast to the fresh thrombus of newly-formed, practices thrift valuable treatment time, reduces patient's misery.

Description

Mechanical thrombus removing device

Technical Field

The utility model relates to a technical field is clear away to the thrombus, in particular to thrombus mechanical clearing device.

Background

The stroke is the main cause of death and disability of the middle-aged and the elderly, millions of stroke patients are newly increased every year in China, and the incidence rate is in an increasing trend. Cerebral infarction is the most common type of cerebral apoplexy, accounts for about 70% -80% of all cerebral apoplexy, and the treatment of cerebral infarction is a hot research subject in the field of neurological diseases. Occlusion of the main trunk of the middle cerebral artery can cause paresthesia, contralateral hemiplegia, bilateral fixation disorders, and hemianopsia. Acute middle cerebral artery occlusion can cause large-area cerebral edema, rapid increase of intracranial pressure and cerebral hernia can occur in a short time, life is threatened, the mortality rate of conventional active internal medicine treatment is high, and survivors often leave serious sequelae.

In recent years, mechanical embolectomy has become a hotspot in the field of cerebral apoplexy. The mechanical thrombus removal is realized by means of intravascular intervention, delivering a thrombus removal device to a thrombus part through a micro guide wire, pulling out the thrombus by rotary cutting or stent release and recovery, ensuring that cerebral vessels are unblocked, restoring the blood flow to be normal and achieving the purpose of recanalization. Mechanical thrombus removal can obviously improve the blood vessel recanalization rate, especially acute cerebral infarction caused by aortic occlusion. The mechanical thrombus removal device can realize blood vessel recanalization, and the time window is prolonged, so that more treatment options are provided for patients with acute cerebral infarction.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thrombus mechanical cleaning device to solve current thrombus removal method use cost height, the blood vessel receives the problem of damage because of the cutting easily.

In order to solve the technical problem, the utility model provides a mechanical thrombus removing device, which comprises a reperfusion catheter and a negative pressure suction pump, wherein the negative pressure suction pump is communicated with a Y-shaped hemostatic valve on a catheter seat at the tail end of the reperfusion catheter through an air pipe;

a separator passes through the reperfusion catheter;

the reperfusion catheter is passed through the vessel to the thrombus site via a guidewire, delivery MAX catheter and dilator.

Optionally, the separator mainly comprises a stainless steel wire and a silicone rubber ball, and the surface of the silicone rubber ball is surrounded by threads.

Optionally, the silicone rubber ball is conical and gradually increases in diameter from the proximal end to the distal end.

Optionally, a separator developing ring is mounted at the top end of the stainless steel wire.

Optionally, a reperfusion catheter developing ring is mounted at the top end of the reperfusion catheter.

Optionally, a delivery micro-catheter passes through the reperfusion catheter, and a delivery micro-catheter developing ring is mounted at the top end of the delivery micro-catheter.

The utility model provides a mechanical thrombus removing device, which comprises a reperfusion catheter and a negative pressure suction pump, wherein the negative pressure suction pump is communicated with a Y-shaped hemostatic valve on a catheter seat at the tail end of the reperfusion catheter through an air pipe; a separator passes through the reperfusion catheter; the reperfusion catheter is passed through the vessel to the thrombus site via a guidewire, delivery MAX catheter and dilator. This thrombus mechanical cleaning device simple structure, the operation is high-efficient convenient, can clear away fast to the fresh thrombus of newly-formed, practices thrift valuable treatment time, reduces patient's misery.

Drawings

FIG. 1 is a schematic view of the overall structure of a mechanical thrombus removal device provided by the present invention;

fig. 2 is a partial enlarged view of the separator of the thrombus mechanical removing device provided by the utility model.

Detailed Description

The mechanical thrombus removing device provided by the invention is further described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

Example one

The utility model provides a thrombus mechanical clearing device, the structure of which is shown in figure 1, comprising a reperfusion catheter 1 and a negative pressure suction pump 2, wherein the negative pressure suction pump 2 is communicated with a Y-shaped hemostatic valve 4 on a catheter seat at the tail end of the reperfusion catheter 1 through an air pipe 3, and thrombus fragments which are cleared are sucked by the negative pressure suction pump 2; a separator 5 penetrates through the reperfusion catheter 1; the reperfusion catheter 1 passes the reperfusion catheter 1 through a blood vessel 6 to a thrombus site 7 via a guidewire, a delivery MAX catheter and a dilator; and a reperfusion catheter developing ring is arranged at the top end of the reperfusion catheter 1 to further confirm the position of thrombus.

Specifically, as shown in fig. 2, the separator 5 mainly comprises a stainless steel wire 51 and a silicone rubber ball 52, wherein a thread 53 is surrounded on the surface of the silicone rubber ball 52, and the silicone rubber ball 52 is conical and gradually increases in diameter from the proximal end to the distal end; a separator developing ring 54 is installed at the top end of the stainless steel wire 51, the separator 5 is inserted into the reperfusion catheter 1 to reach the thrombus position, the silicone rubber ball 52 is rotated, the thrombus is cut by the thread 53, and the thrombus cut into fragments is sucked out by the negative pressure suction pump.

Specifically, the reperfusion catheter 1 and the delivery micro catheter penetrating through the reperfusion catheter are conveyed to a thrombus position through a guide wire, a delivery MAX catheter and an expander, medicine spraying or corresponding operation is carried out, then the delivery micro catheter is removed, the reperfusion catheter 1 is connected with a negative pressure suction pump, a separator 5 is inserted to pull or rotate to cut into broken thrombus, and finally the thrombus is sucked out of the body to finish the removal of the thrombus.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.

Claims

1. The mechanical thrombus clearing device is characterized by comprising a reperfusion catheter (1) and a negative pressure suction pump (2), wherein the negative pressure suction pump (2) is communicated with a Y-shaped hemostatic valve (4) on a catheter seat at the tail end of the reperfusion catheter (1) through a trachea (3);

a separator (5) passes through the reperfusion catheter (1);

the reperfusion catheter (1) is passed through a blood vessel (6) by means of a guide wire, a delivery MAX catheter and a dilator to a thrombus site (7).

2. A mechanical thrombus removal device according to claim 1, wherein the separator (5) consists essentially of a stainless steel wire (51) and a silicone rubber ball (52), wherein the surface of the silicone rubber ball (52) is surrounded by threads (53).

3. A mechanical thrombus removal device as defined in claim 2 wherein said silicone rubber ball (52) is conical in shape with a diameter that increases from the proximal end to the distal end.

4. A mechanical thrombus removal device according to claim 2, wherein the top end of the stainless steel wire (51) is provided with a separator developing ring (54).

5. A mechanical thrombus removal device according to claim 1, wherein the reperfusion catheter (1) is provided with a reperfusion catheter visualization ring at its tip.

6. A mechanical thrombus removal device according to claim 1, wherein a delivery microcatheter is further passed through the reperfusion catheter (1), and a delivery microcatheter developing ring is mounted on the tip of the delivery microcatheter.