CN212939869U

CN212939869U - Efficient thrombus suction device

Info

Publication number: CN212939869U
Application number: CN202020868475.3U
Authority: CN
Inventors: 王芬
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-04-13
Anticipated expiration: 2030-05-21

Abstract

The utility model discloses an efficient thrombus suction device, it includes main duct and thrombus and clears away the head end, is provided with at least one and thrombus on main duct's lateral wall and holds the thrombus suction side opening that the chamber is linked together with the thrombus and be used for the protection sheath pipe of plugging up at least one thrombus suction side opening on the main duct. The main catheter is internally provided with a thrombus accommodating cavity and a negative pressure cavity which are arranged along the length direction of the main catheter and are communicated with each other. The thrombus containing cavity and the negative pressure cavity are also provided with a pressure transmission hole which can realize the conduction of blood between the thrombus containing cavity and the negative pressure cavity, and the pressure transmission hole is internally provided with a filter screen layer, so that thrombus can be intercepted by the filter screen layer. The head end joint is clear away to the thrombus holds in the chamber to can hold the chamber at the thrombus and remove, clear away the both ends of head end at the thrombus and all be connected with the seal wire, the seal wire passes from the middle part of main duct. Utilize the utility model discloses a thrombus suction device can make the blood supply liquid get into the area in it very big increase to make the efficiency of cleaing away to the thrombus improve by a wide margin.

Description

Efficient thrombus suction device

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to efficient thrombus suction device.

Background

At present, the death rate of cardiovascular and cerebrovascular diseases exceeds malignant tumors, and the cardiovascular and cerebrovascular diseases become the first killers threatening the life health of human beings. The formation of thrombus in blood vessels is the most fundamental cause of cardiovascular and cerebrovascular diseases.

In recent years, a thrombus suction catheter is explored in clinical treatment, and thrombus is pointedly and directly removed by means of a contrast technology, so that the curative effect is obvious, and the application in clinic is more and more extensive.

When the thrombus suction catheter is used for removing thrombus, the suction catheter needs to be placed in a blood vessel, negative pressure is kept in the suction catheter, and therefore the thrombus is sucked out, or blood with the thrombus is sucked out, filtered in vitro and then returned to the body. Most of the existing thrombus suction catheters are only provided with one suction inlet at the end part, so the suction inlet of the suction catheter is easy to be blocked, and the suction catheter has to be taken out to clean thrombus and then is reintroduced into the blood vessel, so the thrombus cleaning efficiency is extremely low.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above disadvantages, an object of the present invention is to provide an efficient thrombus aspiration device, which has a large aspiration area, greatly prolongs the operation time of the device in the blood vessel, and ensures that the thrombus aspiration device is in an efficient thrombus clearing state for a long time.

In order to achieve the above purpose, the utility model discloses a technical scheme is: the utility model discloses an efficient thrombus suction device includes the main duct, and the thrombus can be inhaled to the main duct be provided with the thrombus of mutual intercommunication in the main duct and hold chamber and negative pressure chamber negative pressure intracavity keeps the negative pressure state be provided with on the lateral wall of main duct at least one with the thrombus suction side opening that the chamber is linked together is held to the thrombus. Therefore, through at least one thrombus suction side hole that sets up on the lateral wall of main duct for the area that supplies blood to get into greatly increases, and when a thrombus suction side hole took place to block up, blood still accessible other thrombus suction side holes got into, and needn't take out external with thrombus suction device, therefore makes the clearance efficiency to the thrombus improve by a wide margin.

Furthermore, the thrombus-collecting device also comprises a pressure transmission hole which is arranged between the thrombus containing cavity and the negative pressure cavity and can realize the conduction of blood between the thrombus containing cavity and the negative pressure cavity, a filter net layer is arranged in the pressure transmission hole, and thrombus can be intercepted by the filter net layer. Thus, the backflow of blood is not hindered while ensuring that thrombus can be collected in the thrombus-accommodating chamber.

Furthermore, still clear away the head end including the thrombus, the thrombus clear away the head end joint in the thrombus holds in the chamber, and can the thrombus holds and removes in the chamber the both ends that the head end was clear away from to the thrombus all are connected with the seal wire, and the seal wire of keeping away from the thrombus one end of waiting to clear away is followed the middle part of main duct passes.

Still further, a protection part for blocking at least one thrombus aspiration side hole on the main catheter is further included. Therefore, only the side hole for sucking thrombus in the region where thrombus is present can be closed as needed, and the influence on the thrombus removal due to the normal blood suction during the thrombus removal can be minimized.

Furthermore, the protection portion is located for the cover protection sheath pipe outside the main duct, the protection sheath pipe can with at least one of main duct the thrombus suction side opening covers, the protection sheath pipe with main duct is interference fit.

Further, the protective sheath is movable relative to the main catheter. Therefore, the position of the protective sheath can be adjusted according to the requirement, and the thrombus suction side hole in the thrombus concentration area is exposed in a targeted manner.

Further, the distal end of the guide wire protrudes from the protective sheath.

Furthermore, the filter screen layer is a metal wire screen layer.

Further, the thrombus accommodating chamber and the negative pressure chamber are provided along the length direction of the main catheter.

Drawings

Fig. 1 is a schematic perspective view of a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view of a main duct according to a preferred embodiment of the present invention;

fig. 3 is a schematic perspective view of a main duct according to a preferred embodiment of the present invention;

fig. 4 is an enlarged partial view of a portion a of fig. 3 according to a preferred embodiment of the present invention;

fig. 5 is a schematic perspective view of a thrombus removal head according to a preferred embodiment of the present invention;

fig. 6 is a schematic perspective view of the main catheter without a protective sheath.

In the figure:

1-main catheter, 11-thrombus accommodating cavity, 12-negative pressure cavity, 13-thrombus suction side hole, 14-pressure transfer hole, 141-filter screen layer, 2-thrombus clearing head end, 21-guide wire and 3-protective sheath tube.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1 and 2, the efficient thrombus suction device of the present invention includes a main catheter 1 and a thrombus removal head end 2, at least one thrombus suction side hole 13 communicated with a thrombus accommodating chamber 11 is provided on the outer side wall of the main catheter 1, and a protection portion for plugging up the at least one thrombus suction side hole 13 on the main catheter 1 is further included.

A thrombus accommodating chamber 11 and a negative pressure chamber 12 which are provided along the longitudinal direction thereof and communicate with each other are provided in the main catheter 1. The negative pressure chamber 12 is connected to an external vacuum pumping device to ensure that a negative pressure state is always maintained in the negative pressure chamber 12. Referring to fig. 3, a pressure transfer hole 14 for communicating blood between the thrombus accommodating chamber 11 and the negative pressure chamber 12 is further provided between the thrombus accommodating chamber 11 and the negative pressure chamber 12, and a filter mesh layer 141 is provided in the pressure transfer hole 14, so that the thrombus can be intercepted by the filter mesh layer 141. Therefore, under the negative pressure in the negative pressure chamber 12, the utility model discloses a thrombus suction device places regional blood can hold the chamber 11 through the thrombus that thrombus suction side hole 13 was inhaled main catheter 1 in, under the negative pressure in negative pressure chamber 12, blood gets into in the negative pressure chamber 12 to refluence to internal, and the thrombus is then intercepted by filter screen layer 141.

Referring to fig. 5, the two ends of the thrombus clearing head end 2 of the present invention are both connected with guide wires 21, the thrombus clearing head end 2 can be connected to the thrombus accommodating cavity 11, and close one end of the main catheter 1 close to the thrombus, and the guide wires 21 located at one end of the thrombus clearing head end 2 far away from the thrombus to be cleared pass through the main catheter 1 and extend to the outside of the main catheter 1.

Can make through pulling seal wire 21 the utility model discloses a thrombus removal head end 2 removes in the thrombus holds chamber 11 to the thrombus that will collect in the thrombus holds chamber 11 is discharged.

The utility model discloses a filter screen layer 141 is the wire mesh layer, therefore when guaranteeing that the thrombus is intercepted by filter screen layer 141, can guarantee that the thrombus holds the smooth outflow of the blood in the chamber 11 through pressure transmission hole 14. The utility model discloses a main duct can adopt the material of current suction catheter, includes metal mesh layer and soft plastic layer that sets gradually by inside to outside promptly, no longer sets up the plastic layer in pressure transmission hole 14 departments, therefore, only has one deck metal mesh layer in pressure transmission hole department, therefore, the thrombus can be held back in pressure transmission hole 14 departments.

The protection part illustrated in this embodiment is a protection sheath 3 sleeved outside the main catheter 1, and as shown in fig. 6, the protection sheath 3 can cover at least one side hole 13 of the main catheter 1 for thrombus aspiration, and the protection sheath 3 and the main catheter 1 are in interference fit. The utility model discloses a protection sheath pipe 3 can adopt elastic plastics material, therefore can ensure the inseparable laminating of protection sheath pipe 3 and main duct 1 and can make protection sheath pipe 3 relative main duct 1 remove again. Therefore, the installation position of the protective sheath 3 can be adjusted as required, and only the thrombus suction side hole 13 of the main catheter 1 located in the thrombus concentration region is exposed, thereby increasing the suction efficiency of the thrombus and minimizing the normal blood entering the main catheter 1.

The utility model discloses a terminal of seal wire 21 stretches out from protection sheath pipe 3, therefore, can not influence the clearance to being located the thrombus that the thrombus held the chamber 11 because of setting up protection sheath pipe 3.

The utility model discloses a protection portion also can be other structures that can cover or plug up thrombus suction side opening 13, if for a plurality of corresponding to set up the lantern ring that regional setting set up or can fill in that blood lets in the chock plug of thrombus suction side opening 13.

The utility model discloses a high-efficient thrombus suction device's using-way does, clear away the thrombus head end 2 joint in the foremost of main duct 1, the outside of main duct 1 is located to 3 covers of protection sheath pipe, pull out the end of seal wire 21 in the main duct 1, with the leading-in thrombus position of thrombus suction side opening 13 that main duct 1 is not covered by protection sheath pipe 3, be in the negative pressure state in ensuring negative pressure chamber 12, the blood at thrombus position can be through thrombus suction side opening 13 and is inhaled the thrombus and hold in the chamber 11, the thrombus is filtered the stratum reticulare 141 and is held back in thrombus holds chamber 11, when the thrombus volume that inhales in the thrombus holds chamber 11 is more, through outside pulling seal wire 21, can hold the thrombus in the chamber 11 with the thrombus and discharge.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. The utility model provides an efficient thrombus suction device, includes main duct, and the thrombus can be inhaled to the main duct in, its characterized in that be provided with the thrombus of mutual intercommunication in the main duct and hold chamber and negative pressure chamber negative pressure intracavity keeps the negative pressure state, the negative pressure chamber with the thrombus holds the chamber and is linked together be provided with on main duct's the lateral wall at least one with the thrombus that the chamber is linked together is held to the thrombus suction side opening.

2. The high efficiency thrombus aspiration device according to claim 1, further comprising at least one pressure transfer hole provided between the thrombus-accommodating chamber and the negative pressure chamber and capable of achieving communication of blood therebetween, wherein a filter mesh layer is provided in the pressure transfer hole, and the thrombus can be intercepted by the filter mesh layer.

3. The efficient thrombus aspiration device according to claim 2, further comprising a thrombus removal head end, wherein the thrombus removal head end is clamped in the thrombus containing cavity and can move in the thrombus containing cavity, guide wires are connected to both ends of the thrombus removal head end, and the guide wires far away from one end of the thrombus to be removed pass through the middle of the main catheter.

4. The high efficiency thrombus aspiration device of claim 3, further comprising a protective portion for blocking at least one of the thrombus aspiration side holes on the main catheter.

5. The efficient thrombus aspiration device according to claim 4, wherein the protection part is a protection sheath sleeved outside the main catheter, the protection sheath can cover at least one thrombus aspiration side hole of the main catheter, and the protection sheath is in interference fit with the main catheter.

6. The high efficiency thrombus aspiration device of claim 5, wherein the protective sheath is movable relative to the main catheter.

7. The high efficiency thrombus aspiration device of claim 5, wherein the tip of the guidewire protrudes from the protective sheath.

8. The high efficiency thrombus aspiration device of any one of claims 2-7, wherein the filter mesh layer is a wire mesh layer.

9. The high efficiency thrombus aspiration device according to any one of claims 1 to 7, wherein the thrombus-accommodating chamber and the negative pressure chamber are provided along a length direction of the main catheter.