CN113907839A

CN113907839A - Support thrombectomy device with thrombus capture component

Info

Publication number: CN113907839A
Application number: CN202111402314.0A
Authority: CN
Inventors: 张明; 吴媛
Original assignee: Second Affiliated Hospital School of Medicine of Xian Jiaotong University
Current assignee: Second Affiliated Hospital School of Medicine of Xian Jiaotong University
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-01-11

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a stent thrombus extractor with a thrombus capturing component, which comprises a microcatheter, wherein a microcatheter is arranged in the microcatheter, a stent main body is arranged at the top end of the microcatheter, a shrinkage guide wire is arranged in the middle of the stent main body, a vibration wire is arranged at the top end of the stent main body, a signal block is arranged at the top end of the vibration wire, a puncture drill bit is arranged at the top end of the signal block, the capturing component is arranged at the top end of the microcatheter, and a placing cabin is arranged in the capturing component; the stent thrombus taking device with the thrombus capturing component can effectively fix thrombus by using the stent main body and the contraction guide wire, the thrombus can be vibrated by using the vibration wire to fall off from the vessel wall, an electronic signal can be emitted by using the signal block in the thrombus taking work, so that a doctor can determine the position of a puncture drill bit at any time, the thrombus can be completely taken out by using the placing cabin and the closed air bag, and the flexible hose can bend the capturing component according to the path of the vessel.

Description

Support thrombectomy device with thrombus capture component

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a stent thrombus taking device with a thrombus capturing component.

Background

Ischemic stroke is a disease caused by the narrowing or occlusion of an artery supplying blood to the brain, which can lead to the necrosis of brain tissue, and after it occurs, it is necessary to recanalize the blood vessel in the shortest time. The clinical treatment method for ischemic stroke caused by thrombus mainly comprises two methods, namely medicinal thrombolysis and mechanical thrombus removal. The mechanical thrombus removal is used as a novel thrombus treatment method, and is particularly suitable for patients with unsatisfactory thrombolytic effect or unsuitable thrombolytic treatment.

When the original stent thrombus taking device is used, the positions of the thrombus taking device and thrombus are usually determined through images generated by a medical perspective instrument, however, in the thrombus taking process, because a drill bit can coincide with the thrombus, a doctor cannot well judge the position of the drill bit, so that the thrombus taking work is hindered, and when the stent fixes and takes out the thrombus, the condition that partial thrombus is left in a blood vessel possibly exists, so that incomplete treatment is caused, and hidden dangers are generated on future health of a patient.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides the stent embolectomy device with the thrombus capturing component, which has the characteristics of convenience in use, simplicity in operation and good embolectomy effect.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a support thrombectomy ware with part is caught to thrombus, includes little pipe, the inside little seal wire that is provided with of little pipe, the support main part is installed on little seal wire top, be provided with the shrink seal wire in the middle of the support main part, support main part top is provided with the vibrations silk, vibrations silk top is provided with the signal piece, the puncture drill bit is installed on signal piece top, the part is caught to little pipe top installation, it is provided with the flexible pipe to catch the part surface, catch the inside cabin of placing that is provided with of part, it is provided with closed airbag to place the cabin both ends.

In a preferred embodiment of the present invention, the micro guide wire is disposed inside the micro catheter, and the micro guide wire is freely movable inside the micro catheter.

In a preferred embodiment of the present invention, the stent body is attached to the surface of the contracted guidewire when the microcatheter is inside the microcatheter, and the contracted guidewire can be contracted to expand the stent body under pressure when the puncture drill punctures the thrombus and passes the stent body behind the thrombus.

As a preferable technical scheme of the invention, the vibrating wire is arranged at the bottom of the puncture drill bit and can generate vibration when the puncture drill bit penetrates into and passes through the inside of the thrombus.

In a preferred embodiment of the present invention, the signal block is also mounted at the bottom of the piercing drill, and the signal block can emit an electronic signal when the piercing drill penetrates into and passes through the inside of the thrombus.

In a preferred embodiment of the present invention, the bendable tube is provided on an outer surface of the capturing member, and the bendable tube can bend the capturing member according to a path curvature of a blood vessel.

In a preferred embodiment of the present invention, the stent body can fix and draw the thrombus into the placing chamber, and the sealing balloon can inflate to seal the placing chamber when the thrombus completely enters the placing chamber.

Compared with the prior art, the invention has the beneficial effects that: the stent thrombus taking device with the thrombus capturing component can effectively fix thrombus by using the stent main body and the contraction guide wire, ensures the smooth running of thrombus taking work, can vibrate the thrombus to enable the thrombus to fall off from the vascular wall by using the vibration wire, facilitates the movement of the stent main body to the thrombus, can transmit electronic signals by using the signal block in the thrombus taking work to enable a doctor to determine the position of a puncture drill bit at any time, ensures the accuracy of thrombus taking operation, can take out the whole thrombus by using the placing cabin and the closed air bag, prevents the hidden danger of the thrombus tissue left in the blood vessel to the future health of a patient, can bend the capturing component according to the path of the blood vessel by using the bendable hose, and ensures the passability of the capturing component in the blood vessel.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a front end partial structure according to the present invention;

FIG. 3 is a schematic view of an intermediate partial structure in the present invention;

FIG. 4 is a schematic view of a partial structure of the tail end of the present invention;

FIG. 5 is a schematic view of the present invention, partially broken away;

in the figure: 1. a microcatheter; 2. a micro-guide wire; 3. a stent body; 4. shrinking the guide wire; 5. vibrating the wire; 6. a signal block; 7. a piercing drill; 8. a capturing member; 9. a bendable hose; 10. a placing cabin; 11. the balloon is closed.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-5, the present invention provides the following technical solutions: a stent thrombus taking device with a thrombus capturing part comprises a micro catheter 1, a micro guide wire 2 is arranged in the micro catheter 1, a stent main body 3 is arranged at the top end of the micro guide wire 2, a contraction guide wire 4 is arranged in the middle of the stent main body 3, a vibration wire 5 is arranged at the top end of the stent main body 3, a signal block 6 is arranged at the top end of the vibration wire 5, a puncture drill bit 7 is arranged at the top end of the signal block 6, a capturing part 8 is arranged at the top end of the micro catheter 1, a bendable hose 9 is arranged on the surface of the capturing part 8, a placing cabin 10 is arranged in the capturing part 8, closed air bags 11 are arranged at two ends of the placing cabin 10, when in use, the micro catheter 1 is firstly sent to a thrombus part, then the micro guide wire 2 is moved to the front of the thrombus from the inside of the micro catheter 1, then the puncture drill bit 7 is utilized to penetrate into the inside of the thrombus and continuously enable the stent main body 3 to reach the rear of the thrombus, then the stent main body 3 is expanded under pressure and fixes the thrombus from the rear side by utilizing the contraction guide wire 4, slowly outwards pull out little seal wire 2 again and make the thrombus get into and catch 8 inside places the cabin 10 in, utilize simultaneously to seal gasbag 11 will place the cabin 10 and seal and take out little pipe 1 again can, it is very convenient, utilize vibrations silk 5 can vibrate the thrombus and make it can not be fixed with the vascular wall adhesion again, made things convenient for the fixed of support main part 3 to the thrombus and removed, utilize signal block 6 can be external transmission electronic signal at any time, make things convenient for the position of doctor to confirm puncture drill bit 7, the accuracy nature of getting the operation of bolt has been guaranteed, utilize gasbag 11 to seal the cabin 10 of placing, prevent that thrombus tissue from losing and burying hidden danger in the inside follow-up relapse of patient of blood vessel.

Specifically, according to fig. 1 and fig. 2, in this embodiment, the micro guide wire 2 is disposed inside the micro catheter 1, and the micro guide wire 2 can move freely inside the micro catheter 1, so as to ensure the thrombus removal operation.

Specifically, according to fig. 1 and 3, in the present embodiment, the stent body 3 is attached to the surface of the retractable guide wire 4 when the microcatheter 1 is inside the microcatheter 2, and the retractable guide wire 4 can be retracted to expand the stent body 3 under pressure when the puncture drill 7 punctures the thrombus and allows the stent body 3 to pass through and reach the back of the thrombus, thereby ensuring that the stent body 1 can firmly fix the thrombus.

Specifically, according to fig. 1 and fig. 3, in this embodiment, the vibration wire 5 is disposed at the bottom of the puncture drill 7, and the vibration wire 5 can generate vibration when the puncture drill 7 pierces and passes through the inside of the thrombus, so that the adhesion between the thrombus and the blood vessel wall is not tight, and the movement of the thrombus is facilitated.

Specifically, according to fig. 1 and 4, in this embodiment, the signal block 6 is also installed at the bottom of the piercing bit 7, and the signal block 6 can emit an electronic signal when the piercing bit 7 pierces and passes through the inside of the thrombus, thereby ensuring the doctor to grasp the position of the piercing bit 7.

Specifically, according to fig. 1 and 2, in the present embodiment, the bendable tube 9 is disposed on the outer surface of the capturing member 8, and the bendable tube 9 can bend the capturing member 8 according to the curvature of the path of the blood vessel, thereby ensuring the passability of the capturing member 8 inside the blood vessel.

Specifically, according to fig. 1 and 5, in this embodiment, the stent main body 3 can fix and draw the thrombus into the placing cabin 10, and when the thrombus completely enters the placing cabin 10, the sealing air bag 11 can inflate and expand to seal the placing cabin 10, so as to prevent the thrombus tissue from being left in the blood vessel to cause hidden troubles to the health of the patient.

The working principle and the using process of the invention are as follows: the stent thrombus taking device with the thrombus capturing component of the invention is used, firstly, a micro catheter 1 is sent to a thrombus part, then a micro guide wire 2 is moved to the front of the thrombus from the inside of the micro catheter 1, then a puncture drill 7 is utilized to pierce the inside of the thrombus and continuously lead a stent main body 3 to the back of the thrombus, then a contracted guide wire 4 is utilized to make the stent main body 3 expand under pressure and fix the thrombus from the back, then the micro guide wire 2 is slowly pulled out to make the thrombus enter a placing cabin 10 in the capturing component 8, meanwhile, the placing cabin 10 is sealed by a sealing air bag 11, and then the micro catheter 1 is taken out, thereby being very convenient, the thrombus can be vibrated by a vibrating wire 5 to be prevented from being adhered and fixed with the vascular wall, the fixing and moving of the thrombus by the stent main body 3 are convenient, an electronic signal can be emitted to the outside at any time by a signal block 6, and a doctor can conveniently determine the position of the puncture drill 7, the accuracy of the thrombus removal operation is ensured, the placing cabin 10 can be sealed by utilizing the sealing air bag 11, and the hidden danger that thrombus tissues are left in the blood vessel to subsequently relapse and bury a patient is prevented.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A stent thrombectomy device with thrombus capture component, includes microcatheter (1), its characterized in that: little pipe (1) inside is provided with little seal wire (2), support main part (3) are installed on little seal wire (2) top, be provided with shrink seal wire (4) in the middle of support main part (3), support main part (3) top is provided with vibrations silk (5), vibrations silk (5) top is provided with signal piece (6), puncture drill bit (7) are installed on signal piece (6) top, capture part (8) are installed on little pipe (1) top, capture part (8) surface is provided with bendable hose (9), it places cabin (10) to capture inside being provided with of part (8), it is provided with closed gasbag (11) to place cabin (10) both ends.

2. A stent embolectomy device with a thrombus capture component according to claim 1, wherein: the micro guide wire (2) is arranged inside the micro catheter (1), and the micro guide wire (2) can move freely inside the micro catheter (1).

3. A stent embolectomy device with a thrombus capture component according to claim 2, wherein: when the micro guide wire (2) is arranged in the micro catheter (1), the stent main body (3) is attached to the surface of the contraction guide wire (4), and when the puncture drill bit (7) punctures thrombus and enables the stent main body (3) to pass through and reach the back of the thrombus, the contraction guide wire (4) can contract to enable the stent main body (3) to expand under pressure.

4. A stent embolectomy device with a thrombus capture component according to claim 1, wherein: the vibration wire (5) is arranged at the bottom of the puncture drill bit (7), and when the puncture drill bit (7) is punctured and passes through the inside of thrombus, the vibration wire (5) can generate vibration.

5. A stent embolectomy device with a thrombus capture component according to claim 1, wherein: the signal block (6) is also arranged at the bottom of the puncture drill bit (7), and the signal block (6) can emit an electronic signal outwards when the puncture drill bit (7) penetrates into and passes through the inside of thrombus.

6. A stent embolectomy device with a thrombus capture component according to claim 1, wherein: the bendable hose (9) is arranged on the outer surface of the capturing component (8), and the bendable hose (9) can enable the capturing component (8) to be bent according to the path radian of the blood vessel.

7. A stent embolectomy device with a thrombus capture component according to claim 3, wherein: the stent main body (3) can fix and draw thrombus into the placing cabin (10), and when the thrombus completely enters the placing cabin (10), the closed air bag (11) can be inflated to expand to seal the placing cabin (10).