CN107185097B

CN107185097B - Tip control type nerve intervention micro catheter

Info

Publication number: CN107185097B
Application number: CN201710540331.8A
Authority: CN
Inventors: 王草叶; 彭亚; 刘圣; 王祁; 施海彬
Original assignee: First Peoples Hospital of Changzhou
Current assignee: First Peoples Hospital of Changzhou
Priority date: 2017-07-05
Filing date: 2017-07-05
Publication date: 2023-03-07
Anticipated expiration: 2037-07-05
Also published as: CN107185097A

Abstract

The invention discloses a tip control type nerve intervention microcatheter which comprises a catheter tip, a tip fixing seat, a positioning column, a catheter main body, a positioning hole, a tail end control handle, a switch box, a control button, a first micro battery, a wireless transmitter, a micro driving motor, a control box, a second micro battery, a wireless receiver, a micro single chip microcomputer, a first metal sheet and a second metal sheet. The micro catheter enables an operator to position and adjust the catheter tip by using the wireless button through improving the catheter tip, the operator can position and operate the catheter tip in a blood vessel and then follow the catheter when the operator performs nerve intervention, and only the tip needs to be controlled when the operator reaches a target blood vessel, so that the phenomenon of tube detachment or poor control caused by the increase of the rotating torque of the whole catheter in the operation process is reduced, the whole catheter is kept to be free from twisting in the operation process, the operation time is shortened, and the learning curve is simplified.

Description

Tip control type nerve intervention micro catheter

Technical Field

The invention relates to a micro catheter, in particular to a tip control type nerve intervention micro catheter, and belongs to the technical field of medical equipment application.

Background

Intracranial aneurysm embolization among the neural intervention needs to use the position that little pipe arrived aneurysm in intracranial blood vessel to embolise the tumor body, the most crucial one step in the embolism process is that the pipe tip need place the aneurysm entrance, need use the fixed of guide catheter in operation process, the pipe can be placed at the aneurysm entrance to little seal wire and mutual cooperation of little pipe, whole operation process is because the pipe gets into from femoral artery, through abdominal aorta, thoracic aorta, common carotid artery or subclavian artery again to intracranial artery, the pipe journey is long.

At present, the positioning operation of the catheter is to perform rotation operation at the tail end of the catheter, the whole catheter rotates in the operation, the torsion is large, the phenomenon that the guide catheter is detached from the catheter is easily caused, the guide catheter needs to be inserted again for positioning, the micro catheter is positioned again, the precise control performance of the tip of the catheter is poor, the operation difficulty is large, the learning curve is long, the operation consumes much time, and the prolonged operation time easily causes complication increase. Therefore, a tip-controlled neuro-interventional micro-catheter is proposed to solve the above problems.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a tip-controlled neuro-interventional micro-catheter.

The invention achieves the aim through the following technical scheme that the tip control type nerve intervention micro catheter comprises a catheter tip, a catheter main body and a tail end control handle; a tip fixing seat is arranged on one side of the tip of the catheter, and a micro driving motor is arranged in the tip fixing seat; the micro driving motor is electrically connected with the control box; a second micro battery is arranged in the control box and is respectively connected with the micro single chip microcomputer and the wireless receiver through leads; the side wall of the tip fixing seat is provided with a positioning column, and the positioning column is fixed inside the positioning hole; the positioning hole is fixed in the catheter main body, and the other end of the catheter main body, which is opposite to the positioning hole, is provided with a tail end control handle; a switch box is arranged on the inner wall of the tail end control handle, and a control button is arranged in the switch box; the control button is connected with the first metal block, and a second metal block is arranged on one side of the first metal block; the second metal block is respectively connected with the first micro battery and the wireless transmitter through wires.

Preferably, the wireless receiver and the wireless transmitter are matched with each other.

Preferably, the micro drive motor is rotatably connected to the catheter tip via a bearing.

Preferably, the positioning column and the positioning hole are matched with each other, an external thread structure is arranged on the outer surface of the positioning column, and an internal thread structure is distributed on the inner wall of the positioning hole.

Preferably, the wireless receiver is connected with the micro single chip microcomputer through a wire, and the micro single chip microcomputer is electrically connected with the micro driving motor.

Preferably, the tail end control handle is circular, and the tail end control handle is connected with the catheter main body in a gluing mode.

The invention has the beneficial effects that: the micro catheter is designed by improving the tip of the catheter, so that an operator can position and adjust the tip of the catheter by using a wireless button, the operator can position and operate the tip of the catheter in a blood vessel and then follow the catheter when the operator performs nerve intervention, and when the operator reaches a target blood vessel, the position of the tip is controlled, so that the phenomenon of tube detachment or poor control caused by the increase of the rotating torque of the whole catheter in the operation process is reduced, the whole catheter is kept free from twisting in the operation process, the fixity is better, the accuracy is improved, the operation time is shortened, and the learning curve is simplified; meanwhile, various devices arranged in the tip of the catheter can increase the hardness and the supporting force of the catheter, so that the catheter has better positioning effect during delivery and can not twist to damage blood vessels; the pointed end adopts a thread fixing mode, so that the worker can conveniently detach and replace the tip.

Drawings

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

FIG. 2 is a schematic view of a catheter tip configuration of the present invention;

FIG. 3 is a schematic view of the internal structure of the control box according to the present invention;

fig. 4 is a schematic diagram of the internal structure of the switch box of the present invention.

In the figure: 1. catheter tip, 2, tip fixing base, 201, reference column, 3, catheter main part, 301, locating hole, 4, tail end control handle, 5, switch box, 501, control button, 502, first miniature battery, 503, wireless transmitter, 6, miniature actuating motor, 7, control box, 701, second miniature battery, 702, wireless receiver, 703, miniature singlechip, 8, first sheetmetal, 9, second sheetmetal.

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.

Referring to fig. 1-4, a tip-controlled neuro-interventional micro-catheter includes a catheter tip 1, a catheter body 3 and a tail end control handle 4; a tip fixing seat 2 is arranged on one side of the catheter tip 1, and a micro driving motor 6 is arranged in the tip fixing seat 2; the micro driving motor 6 is electrically connected with the control box 7; a second micro battery 701 is arranged in the control box 7, and the second micro battery 701 is respectively connected with the micro singlechip 703 and the wireless receiver 702 through wires; the side wall of the tip fixing seat 2 is provided with a positioning column 201, and the positioning column 201 is fixed inside the positioning hole 301; the positioning hole 301 is fixed in the catheter main body 3, and the other end of the catheter main body 3 opposite to the positioning hole 301 is provided with a tail end control handle 4; a switch box 5 is arranged on the inner wall of the tail end control handle 4, and a control button 501 is arranged in the switch box 5; the control button 501 is connected with the first metal block 8, and a second metal block 9 is arranged on one side of the first metal block 8; the second metal block 9 is connected to the first micro battery 502 and the wireless transmitter 503 through wires.

Wherein: both the wireless transmitter 503 and the wireless receiver 702 are based on RF68 chips.

As a technical optimization scheme of the invention, the wireless receiver 702 and the wireless transmitter 503 are matched with each other, so that the catheter tip 1 can be wirelessly controlled through the tail end, and the operation efficiency is greatly improved.

As a technical optimization scheme of the invention, the micro driving motor 6 is rotatably connected with the catheter tip 1 through a bearing, so that the positioning adjustment of the catheter tip 1 is realized.

As a technical optimization scheme of the invention, the positioning column 201 and the positioning hole 301 are matched with each other, the outer surface of the positioning column 201 is provided with an external thread structure, and the inner wall of the positioning hole 301 is distributed with an internal thread structure, so that the tip 1 of the catheter can be freely detached and installed, the operation is simpler and more convenient, and the strength of the tip can be improved.

As a technical optimization scheme of the present invention, the wireless receiver 702 is connected to the micro-controller 703 through a wire, and the micro-controller 703 is electrically connected to the micro-driving motor 6, so as to control the micro-driving motor 6.

As a technical optimization scheme of the invention, the tail end control handle 4 is annular, the tail end control handle 4 is connected with the catheter main body 3 in a gluing mode, and the catheter main body 3 can be controlled through the tail end control handle 4 conventionally.

When the catheter tip 1 is used, after the catheter tip 1 is disinfected, the positioning column 201 of the catheter tip 1 is screwed into the positioning hole 301, the control button 501 is pressed, the first metal sheet 8 and the second metal sheet 9 are attached, the wireless transmitter 503 is powered on, the wireless receiver 702 receives a control signal and transmits the signal to the micro single chip microcomputer 703, the micro single chip microcomputer 703 controls the micro driving motor 6 to work, the catheter tip 1 is driven to be adjusted to a proper position, the catheter body 1 is adjusted to a proper position through the tail end control handle 4, so that the catheter enters from a femoral artery, passes through an abdominal aorta, a thoracic aorta, a common carotid artery or a subclavian artery and then an intracranial artery, is placed at an aneurysm inlet, and the position of the catheter tip 1 is adjusted through the control button 501 again, and embolization of a tumor body is completed.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A tip control type nerve intervention micro catheter comprises a catheter tip (1), a catheter main body (3) and a tail end control handle (4); the method is characterized in that: a tip fixing seat (2) is arranged on one side of the catheter tip (1), and a micro driving motor (6) is arranged in the tip fixing seat (2); the micro driving motor (6) is electrically connected with the control box (7); a second micro battery (701) is arranged in the control box (7), and the second micro battery (701) is respectively connected with the micro singlechip (703) and the wireless receiver (702) through leads; the side wall of the tip fixing seat (2) is provided with a positioning column (201), and the positioning column (201) is fixed inside the positioning hole (301); the positioning hole (301) is fixed inside the catheter main body (3), and the other end of the catheter main body (3) opposite to the positioning hole (301) is provided with a tail end control handle (4); a switch box (5) is arranged on the inner wall of the tail end control handle (4), and a control button (501) is arranged in the switch box (5); the control button (501) is connected with the first metal block (8), and a second metal block (9) is arranged on one side of the first metal block (8); the second metal block (9) is respectively connected with a first micro battery (502) and a wireless transmitter (503) through leads; the wireless receiver (702) and the wireless transmitter (503) are matched with each other; the micro driving motor (6) is rotatably connected with the catheter tip (1) through a bearing.

2. The tip-controlled neuro-interventional micro-catheter as set forth in claim 1, wherein: the positioning column (201) and the positioning hole (301) are matched with each other, an external thread structure is arranged on the outer surface of the positioning column (201), and an internal thread structure is distributed on the inner wall of the positioning hole (301).

3. The tip-controlled neuro-interventional micro-catheter as set forth in claim 1, wherein: the wireless receiver (702) is connected with the micro single chip microcomputer (703) through a wire, and the micro single chip microcomputer (703) is electrically connected with the micro driving motor (6).

4. The tip-controlled neuro-interventional micro-catheter as set forth in claim 1, wherein: the tail end control handle (4) is in a circular ring shape, and the tail end control handle (4) is connected with the catheter main body (3) in a gluing mode.