CN218852775U

CN218852775U - Arterial thrombus removing auxiliary device

Info

Publication number: CN218852775U
Application number: CN202222452870.5U
Authority: CN
Inventors: 王艳阳
Original assignee: Beijing Luhe Hospital
Current assignee: Beijing Luhe Hospital
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-04-14
Anticipated expiration: 2032-09-16

Abstract

The utility model relates to a thrombus removes technical field, especially relates to artery thrombus removes auxiliary device. The technical scheme includes that the catheter comprises a closed assembly cavity, a main cavity, a pressurizing cavity and a guide wire cavity; the closed assembly cavity, the main cavity, the pressurizing cavity and the guide wire cavity are arranged in the catheter; a sealing component is arranged in the sealing component cavity; the catheter is characterized in that a near-end blocking balloon is arranged at the beginning end of the catheter, a far-end protecting balloon is arranged at the extending end of the beginning end of the catheter, and the near-end blocking balloon and the far-end protecting balloon are respectively communicated with the pressurizing cavity. The utility model has the advantages of sufficient distal end protection sacculus can prevent that the thrombus piece that drops from dropping the distal end and causing the embolism, sufficient near-end blocks that the sacculus can prevent that the thrombus from flowing backward along with blood, and blood when two side sacculus can be fine reduction thrombus suction is lost to this reduces the influence and the incidence of embolism to normal thrombus suction, better completion thrombus suction.

Description

Arterial thrombus removing auxiliary device

Technical Field

The utility model relates to a technical field is clear away to the thrombus specifically is arterial thrombus clears away auxiliary device.

Background

Thrombus is a disease caused by abnormal blood clots in human body circulating blood, and in order to solve the problem that the thrombus blocks a blood vessel, a thrombus suction catheter is generally used in the prior art, the catheter is conveyed to a thrombus part along the blood vessel, negative pressure is directly given to the catheter, the thrombus is extracted, and the blood vessel is enabled to reestablish blood flow dynamics.

The drawbacks of the prior art are mainly that the thrombus falls off easily resulting in an embolism when the thrombus extraction is performed, thereby interrupting the blood flow, resulting in local tissue necrosis and even life-threatening situations, which are more likely to occur especially when the thrombus is cleaned in an artery. Therefore, it is important to provide a thrombus removal assistance device capable of performing an embolectomy operation while preventing a distal end of a blood vessel from being embolised due to the detachment of thrombus fragments. In view of this, we propose an arterial thrombectomy assistance device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an artery thrombus clears away auxiliary device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the arterial thrombus removal auxiliary device comprises a catheter, wherein the catheter comprises a closed component cavity, a main cavity, a pressurizing cavity and a guide wire cavity;

the closed component cavity is arranged above the inner part of the catheter;

the main cavity is arranged in the middle of the inner part of the catheter;

the pressurizing cavity and the guide wire cavity are respectively arranged below the inner part of the catheter, the pressurizing cavity is positioned below the guide wire cavity, and the pressurizing cavity and the guide wire cavity are extended along the extending end of the starting end of the catheter;

the sealing assembly cavity, the main cavity, the pressurizing cavity and the guide wire cavity are not communicated with each other;

a sealing component is arranged in the sealing component cavity;

the catheter is characterized in that a near-end blocking balloon is arranged at the beginning end of the catheter, a far-end protecting balloon is arranged at the extending end of the beginning end of the catheter, and the near-end blocking balloon and the far-end protecting balloon are respectively communicated with the pressurizing cavity.

Preferably, a pressurizing pipeline is fixedly arranged at the tail end of the pressurizing cavity and is communicated with the pressurizing cavity.

Preferably, a guide wire pipeline is fixedly arranged at the tail end of the guide wire cavity and is communicated with the guide wire cavity.

Preferably, a cleaning pipeline is fixedly arranged at the tail end of the main cavity and communicated with the main cavity.

Preferably, the sealing assembly comprises a baffle plate, a connecting wire and a sheath head switch;

connecting wire movable mounting is in the closed assembly intracavity, the baffle is connected with the top of connecting wire, the pipe of main cavity top department is slope form, the baffle slope, the end-to-end connection of sheath head switch and connecting wire, just the sheath head switch is located the inslot that the terminal top of pipe was seted up, closed assembly chamber end and groove intercommunication.

Preferably, the baffle inboard has set firmly the sealing washer, the sealing washer cooperates with main cavity top opening grafting, sealing washer and main cavity top looks adaptation, one side that the sealing washer inner wall deviates from the baffle has set firmly the expansion ring, the expansion ring is oval.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses be provided with distal end protection sacculus and near-end and block the sacculus, through setting up distal end protection sacculus at the chamber distal end that pressurizes, it blocks the sacculus to set up the near-end between the accent between chamber and the closed assembly chamber to inflate, inhale and tie the in-process, sufficient distal end protection sacculus can prevent that the thrombus piece that drops from dropping the distal end and causing the embolism, sufficient near-end blocks the sacculus and can prevent that the thrombus from flowing back along with blood, blood when two side sacculus can be fine reduction thrombus suction is lost, reduce the influence and the incidence of embolism to normal thrombus suction with this, better completion thrombus suction. The problem of when carrying out the thrombus extraction thrombus drop and lead to the embolism easily to interrupt blood flow, lead to local tissue necrosis, threaten life even is solved.

2. The utility model discloses be provided with the seal assembly, when needing to send into thrombus clearing device through the main cavity, the doctor can stop up the position at main cavity top with the seal assembly in seal assembly chamber tail end operation seal assembly, and open to rotate the structure that the seal assembly stopped up the main cavity top, thereby make things convenient for thrombus clearing device to send into artery blood vessel. During the process of delivering the catheter into the arterial vessel, the initial end opening of the main cavity is closed by the closing assembly, so that the blood in the arterial vessel is prevented from entering the main cavity.

3. The utility model discloses be provided with sealing washer and expansion ring, the sealing washer injects in the main cavity top opening for the baffle location is in main cavity top department, strengthens the baffle and to the closed of main cavity top open-ended, and oval expansion ring can be further expands sealing washer one side, provides the extrusion force to the sealing washer, makes sealing washer and main cavity top opening inner wall laminating effect better, causes the sealed effect of sealing washer better.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic diagram of the baffle explosion structure of the present invention;

fig. 4 is a schematic structural view of the baffle of the present invention in front view after extending out;

in the figure: 1. a conduit; 2. a proximal occlusion balloon; 3. a closure assembly; 4. a distal protective balloon; 5. closing the assembly cavity; 6. a main chamber; 7. a pressure chamber; 8. a guidewire lumen;

301. a baffle plate; 302. connecting wires; 303. a sheath head switch;

3011. a seal ring; 3012. expanding the ring;

601. cleaning a pipeline;

701. a pressurizing pipeline;

801. a guidewire duct.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; 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 as a specific case by those skilled in the art.

Referring to fig. 1-4, the present invention provides a technical solution:

the arterial thrombus removal auxiliary device comprises a catheter 1, wherein the catheter 1 comprises a closed component cavity 5, a main cavity 6, a pressurizing cavity 7 and a guide wire cavity 8;

a closed component cavity 5 which is arranged above the inner part of the catheter 1;

a main cavity 6 arranged in the middle of the interior of the catheter 1, wherein the main cavity 6 is extended from the tail end of the catheter 1;

the pressurizing cavity 7 and the guide wire cavity 8 are respectively arranged below the inner part of the catheter 1, the pressurizing cavity 7 is positioned below the guide wire cavity 8, and the pressurizing cavity 7 and the guide wire cavity 8 are extended along the extending end of the starting end of the catheter 1; the extending end of the guide wire cavity 8 penetrates through the extending end of the starting end of the catheter 1, and the extending end of the pressurizing cavity 7 is closed.

Wherein the sealing component cavity 5, the main cavity 6, the pressurizing cavity 7 and the guide wire cavity 8 are not communicated with each other;

the sealing component 3 is arranged in the sealing component cavity 5; the beginning of the main chamber 6 is closed by means of the closure assembly 3 and opened when required. When thrombus clearing device is required to be sent into through the main cavity 6, a doctor can operate the sealing component 3 at the tail end of the sealing component cavity 5, open the position where the sealing component 3 blocks the starting end of the main cavity 6 and rotate the structure where the sealing component 3 blocks the starting end of the main cavity 6, so that the thrombus clearing device is convenient to send into arterial blood vessels. During the process of delivering the catheter 1 into the arterial vessel, the closing component 3 closes the initial end opening of the main cavity 6 to prevent the blood in the arterial vessel from entering the main cavity 6.

The starting end of the catheter 1 is provided with a near-end blocking balloon 2, the extending end of the starting end of the catheter 1 is provided with a far-end protecting balloon 4, and the near-end blocking balloon 2 and the far-end protecting balloon 4 are respectively communicated with a pressurizing cavity 7. Through set up distal end protection sacculus 4 at the chamber 7 distal end of inflating, set up the near-end between the accent between chamber 7 and the closed assembly chamber 5 and block sacculus 2, in-process of carrying out the bolt, sufficient distal end protection sacculus 4 can prevent that the thrombus piece that drops from dropping the distal end and cause the embolism, sufficient near-end blocks sacculus 2 and can prevent that the thrombus from flowing along with blood backward, blood when two side sacculus can be fine reduction thrombus suction is lost, with this influence and the incidence of embolism to normal thrombus suction, better completion thrombus suction. The problem of when carrying out the thrombus extraction thrombus drop easily lead to the embolism to interrupt blood flow, lead to local tissue necrosis, threaten life even is solved.

Specifically, a pressurizing pipeline 701 is fixedly arranged at the tail end of the pressurizing cavity 7, and the pressurizing pipeline 701 is communicated with the pressurizing cavity 7. The inflating pipeline 701 is connected with an external air pump, the external air pump is used for supplying air to the far-end protection balloon 4 and the near-end blocking balloon 2 or exhausting air, the far-end protection balloon 4 and the near-end blocking balloon 2 are inflated and expanded during air supply, and the far-end protection balloon 4 and the near-end blocking balloon 2 are contracted during air exhausting.

Furthermore, a guide wire pipeline 801 is fixedly arranged at the tail end of the guide wire cavity 8, and the guide wire pipeline 801 is communicated with the guide wire cavity 8. The guide wire is inserted into the guide wire lumen 8 from the guide wire channel 801, and the guide wire is used to perform a guiding operation.

Still further, the end of the main cavity 6 is fixedly provided with a cleaning pipeline 601, and the cleaning pipeline 601 is communicated with the main cavity 6. The cleaning pipeline 601 is connected with an external cleaning water pump, and cleaning liquid is injected into the main cavity 6 through the cleaning pipeline 601 by using the external cleaning water pump to clean the inside of the main cavity 6.

Further, the closing component 3 comprises a baffle 301, a connecting wire 302 and a sheath head switch 303;

connecting wire 302 is movably installed in closed assembly cavity 5, baffle 301 is connected with the top of connecting wire 302, catheter 1 at the top of main cavity 6 is slope-shaped, baffle 301 inclines, sheath head switch 303 is connected with the end of connecting wire 302, sheath head switch 303 is located the inslot that catheter 1 end top was seted up, closed assembly cavity 5 end and groove intercommunication. When sending into arterial blood vessel intracavity, catheter 1 at 6 initial ends of main cavity is the setting of ramp form and the setting of baffle 301 slope, make catheter 1 can not cut the piece of rubbing the vascular wall because of the great mouth of main cavity 6, and when needing to send into thrombus clearing device through main cavity 6, the doctor can promote sheath head switch 303, promote connecting wire 302 and remove towards 6 initial ends of main cavity, open baffle 301, and rotate sheath head switch 303, connecting wire 302 rotates and drives baffle 301 and rotate, can not block 6 openings of main cavity, thereby make things convenient for thrombus clearing device to send into arterial blood vessel, prevent vascular damage, realize the protection to the vascular wall.

It is worth to say that, the inboard of baffle 301 sets firmly sealing washer 3011, and sealing washer 3011 and main cavity 6 top opening grafting cooperation, sealing washer 3011 and the leading end looks adaptation of main cavity 6, and the one side that the baffle 301 deviates from in sealing washer 3011 inner wall sets firmly expansion ring 3012, and expansion ring 3012 is the ellipse. Sealing washer 3011 injects in the main cavity 6 initial end opening for baffle 301 is fixed a position at 6 initial end departments of main cavity, strengthens baffle 301 and to 6 initial end open-ended of main cavity seal, and oval expansion ring 3012 can further expand sealing washer 3011 one side, provides the extrusion force to sealing washer 3011, makes sealing washer 3011 and the initial end opening inner wall laminating effect of main cavity 6 better, causes sealing washer 3011's sealed effect better.

In addition, alternative embodiments:

1. the distance between the far-end protective balloon 4 and the near-end blocking balloon 2 is adjustable;

2. a sheath core filling cavity is adopted in the closed assembly cavity 5 to replace a connecting wire 302, and meanwhile, an inclined baffle 301 is arranged at the closed assembly cavity 5, so that sheath core limiting and vessel wall protection are realized;

3. adopt the sheath core to fill the cavity and replace connecting wire 302 in the closed assembly chamber 5 is inside, adopt the mode of interference centre gripping in closed assembly chamber 5 department simultaneously, realize that the sheath core is spacing and to the protection of vascular wall.

The working principle is as follows: when carrying out arterial thrombus to the patient and taking out, in the use, the art person is with pipe 1 propelling movement to artery blood vessel target location, reach the target location after, full distal end protection sacculus 4 and near-end block sacculus 2, promote sheath head switch 303, it removes towards 6 top of main cavity to promote connecting wire 302, open baffle 301, and rotate sheath head switch 303, connecting wire 302 rotates and drives baffle 301 and rotate, open 6 top openings of main cavity, penetrate main cavity 6 and propelling movement to the target location with the suction catheter and begin to carry out the thrombus suction. In the process of carrying out the suction and the embolism, the thrombus piece that distal end protection sacculus 4 can prevent to drop drops the distal end and causes the embolism, and the near-end blocks sacculus 2 and can prevent that the thrombus from flowing back along with blood, and blood when two side sacculus can be fine reduction thrombus suction is lost to this reduces the influence and the incidence of embolism to normal thrombus suction, better completion thrombus suction.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Arterial thrombus removes auxiliary device, including pipe (1), its characterized in that: the catheter (1) comprises a closed assembly cavity (5), a main cavity (6), a pressurizing cavity (7) and a guide wire cavity (8);

the closed component cavity (5) is arranged above the inner part of the catheter (1);

the main cavity (6) is arranged in the middle of the inner part of the catheter (1);

the inflation cavity (7) and the guide wire cavity (8) are respectively arranged below the inner part of the catheter (1), the inflation cavity (7) is positioned below the guide wire cavity (8), and the inflation cavity (7) and the guide wire cavity (8) are extended along the extending end of the starting end of the catheter (1);

the sealing assembly cavity (5), the main cavity (6), the pressurizing cavity (7) and the guide wire cavity (8) are not communicated with each other;

a sealing component (3) is arranged in the sealing component cavity (5);

the catheter is characterized in that a near-end blocking balloon (2) is arranged at the beginning end of the catheter (1), a far-end protecting balloon (4) is arranged at the extending end of the beginning end of the catheter (1), and the near-end blocking balloon (2) and the far-end protecting balloon (4) are respectively communicated with the pressurizing cavity (7).

2. An arterial thrombus removal assistance device according to claim 1, wherein: and a pressurizing pipeline (701) is fixedly arranged at the tail end of the pressurizing cavity (7), and the pressurizing pipeline (701) is communicated with the pressurizing cavity (7).

3. An arterial thrombus removal assistance device according to claim 1, wherein: the tail end of the guide wire cavity (8) is fixedly provided with a guide wire pipeline (801), and the guide wire pipeline (801) is communicated with the guide wire cavity (8).

4. An arterial thrombus removal assistance device according to claim 1, wherein: the tail end of the main cavity (6) is fixedly provided with a cleaning pipeline (601), and the cleaning pipeline (601) is communicated with the main cavity (6).

5. An arterial thrombus removal assistance device according to claim 1, wherein: the sealing assembly (3) comprises a baffle plate (301), a connecting wire (302) and a sheath head switch (303);

connecting wire (302) movable mounting is in closing subassembly chamber (5), baffle (301) are connected with the top of connecting wire (302), pipe (1) of main cavity (6) top department is slope form, baffle (301) slope, sheath head switch (303) are connected with the end of connecting wire (302), just sheath head switch (303) are located the inslot that pipe (1) terminal top was seted up, close subassembly chamber (5) end and groove intercommunication.

6. An arterial thrombectomy assistance device according to claim 5, wherein: baffle (301) inboard has set firmly sealing washer (3011), sealing washer (3011) and main cavity (6) top opening grafting cooperation, sealing washer (3011) and main cavity (6) top looks adaptation, one side that sealing washer (3011) inner wall deviates from baffle (301) has set firmly expansion ring (3012), expansion ring (3012) are the ellipse.