CN111870798B

CN111870798B - Novel diversion conduit

Info

Publication number: CN111870798B
Application number: CN202010645755.2A
Authority: CN
Inventors: 潘宁; 陆信武; 叶开创; 秦金宝; 赵中
Original assignee: Guichuang Tongqiao Medical Technology Co ltd
Current assignee: Guichuang Tongqiao Medical Technology Co ltd
Priority date: 2020-04-27
Filing date: 2020-07-07
Publication date: 2023-08-22
Anticipated expiration: 2040-07-07
Also published as: CN111870798A

Abstract

The invention relates to a novel transfer catheter capable of reducing operation difficulty and operation time, which comprises an innominate arterial blood flow passage, wherein the innominate arterial blood flow passage is connected with a left common carotid puncture sheath and a left common carotid blood flow passage, and one or more closable through holes are arranged on the innominate arterial blood flow passage. The invention solves the problems that when the fracture position is at the active arch part or the ascending part of the aorta, if a conventional straight tube type tectorial membrane bracket is used, the branch vessel is blocked, the extracorporeal circulation needs to be established firstly, and the blocking of the branch vessel is prevented, but the extracorporeal circulation device is relatively complex, the operation is difficult, and a longer learning curve is needed.

Description

Novel diversion conduit

Technical Field

The invention relates to the technical field of medical machinery, in particular to a novel diversion catheter capable of reducing operation difficulty and operation time.

Background

Aortic diseases, particularly aortic aneurysms, are a serious life threatening cardiac great vascular emergency with extremely high mortality. The mortality rate of untreated patients is 50% -76% in 5 years, and the mortality rate of patients with combined cardiopulmonary diseases is as high as 93%. Surgical operation is a main method for treating aortic diseases before 90 s, but the surgical operation method has the advantages of large wound, long operation time, more complications and high mortality rate, the mortality rate of thoracoabdominal aortic aneurysm operation reaches 5% -26%, and the paraplegia incidence rate is 4.6%.

Thoracic aortic aneurysm refers to an aneurysm occurring in the aortic sinus, ascending aorta, aortic arch or descending aorta, and is an abnormal dilation, deformation, and tumor-like protrusion of the thoracic aortic segment. The thoracic aorta is dilated or distended irreversibly, locally or at multiple locations, irreversibly, and forms a "tumor-like" mass, called an aneurysm. Aneurysms are classified into three types, true aneurysms, false aneurysms, and aortic dissection. The covered stent can be mainly used for blocking the rupture and has the function of treating aortic aneurysm.

When the fracture position is at the far end of the left collarbone position, a conventional straight tube type tectorial membrane bracket can be used for plugging, when the fracture position is at the active arch part or the ascending part of the aorta, if the conventional straight tube type tectorial membrane bracket is used, a branch vessel can be plugged due to lack of an anchoring area, and the current research means mainly comprises the steps of firstly establishing extracorporeal circulation before releasing the straight tube type tectorial membrane bracket, so as to prevent the branch vessel from being plugged. However, the extracorporeal circulation device is relatively complex, difficult to operate, and requires a relatively long learning curve.

Disclosure of Invention

The invention aims to provide a novel diversion conduit capable of reducing operation difficulty and operation time, aiming at solving the defects that the existing extracorporeal circulation device is relatively complex, difficult to operate and needs a relatively long learning curve.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the utility model provides a novel diversion catheter, includes the innominate arterial blood flow passageway, innominate arterial blood flow passageway connects left common carotid puncture sheath and left common carotid blood flow passageway, is equipped with one or more closable through-hole on the innominate arterial blood flow passageway.

The present invention aims at the operation of the incision position at the active arch part or the ascending aorta part, and if a conventional straight tube type covered stent is used, the branch vessel is blocked due to the lack of an anchoring area, and the prior research means mainly comprises the steps of firstly establishing extracorporeal circulation before releasing the straight tube type covered stent to prevent the blockage of the branch vessel.

The transfer catheter is placed in a proper position through an interventional method, then the main body tectorial membrane stent is released, at the moment, blood enters from the blood flow channel of the innominate artery and flows out from the through hole in the middle of the catheter to perfuse the right common carotid artery, and on the other hand, blood flow can enter through the left common carotid artery to perfuse the left common carotid artery. At this time, the aortic tectorial membrane stent is perforated by the left neck total puncture sheath; after the aortic covered stent is punctured by the left common carotid artery, the knob on the blood passage of the innominate artery is rotated to close the through hole in the middle of the sheath tube, and the proximal opening of the blood passage of the innominate artery is retracted above the covered stent, so that blood flows into the left common carotid artery from the left common carotid artery puncture sheath and flows into the left common carotid artery and the right common carotid artery respectively through the three-way valve, and the perfusion of the blood of the left common carotid artery and the right common carotid artery can be ensured through all the operation operations.

Preferably, the through hole is provided in the middle of the innominate arterial blood flow path.

Preferably, the innominate arterial blood flow path is composed of an outer layer tube and an inner layer tube, and a blood flow control knob capable of controlling the closing of the through hole is arranged at the distal end part.

Preferably, the inner tube is rotatable relative to the outer tube.

Preferably, the blood flow control knob is connected to the inner tube.

Preferably, the innominate arterial blood flow path connects the left common carotid puncture sheath with the left common carotid blood flow path through a three-way valve.

Preferably, the left common carotid puncture sheath and the left common carotid blood flow path are located at the distal end of the innominate arterial blood flow path.

The beneficial effects of the invention are as follows: the invention provides a diversion catheter which reduces operation difficulty and operation time, and solves the problems that when a fracture position is at an active arch part or an ascending part of an aorta, if a conventional straight tube type tectorial membrane bracket is used, a branch vessel is blocked, an extracorporeal circulation needs to be established firstly, and the blocking of the branch vessel is prevented, but an extracorporeal circulation device is relatively complex, the operation is difficult, and a longer learning curve is needed.

Drawings

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

FIG. 2 is a cross-sectional view of the innominate arterial blood flow path of the present invention;

FIG. 3 is a schematic view of the blood flow of the transfer conduit of the present invention in an open state;

FIG. 4 is a schematic view of the flow of the transfer conduit of the present invention in a closed position.

In the figure, 1, an innominate arterial blood flow path; 2. left common carotid artery puncture sheath; 3. left common carotid artery blood flow path; 4. a through hole; 5. a blood flow control knob; 6. a three-way valve; 7. an outer layer tube; 8. an inner layer tube.

Detailed Description

The invention is further illustrated by the following examples and figures:

it should be understood, however, that the invention is not limited to the particular exemplary embodiments disclosed, but is to cover all modifications, equivalents, and alternatives falling within the scope of the present disclosure. Like reference numerals refer to like elements throughout the description of the drawings.

Examples

Referring to fig. 1 and 2, the present invention provides a novel transfer catheter, which comprises a flexible innominate arterial blood flow path 1, wherein the innominate arterial blood flow path 1 is composed of an outer layer tube 7 and an inner layer tube 8, and the inner layer tube 8 can rotate relative to the outer layer tube 7; the far end of the innominate arterial blood flow passage 1 is connected with a left carotid puncture sheath 2 and a left carotid blood flow passage 3 through a three-way valve 6, a through hole 4 is formed in the middle of the innominate arterial blood flow passage 1, a blood flow control knob 5 is arranged at the end of the far end, the blood flow control knob 5 is fixedly connected with an inner layer pipe 8, the inner layer pipe 8 is driven to rotate when the blood flow control knob 5 rotates, so that the through hole 4 is opened or closed, and when the blood flow control knob 5 rotates to enable the through holes of the inner layer pipe 8 and an outer layer pipe 7 to be communicated, blood can flow out from the through hole; when the blood flow control knob 5 is turned so that the through holes in the inner tube 8 and the outer tube 7 are staggered, that is, closed, blood cannot flow out of the through holes.

When the transfer catheter is used, the transfer catheter is placed in the position shown in fig. 3 through an interventional method according to fig. 3, then the main body covered stent is released, blood enters from the innominate arterial blood flow passage and flows out from the through hole in the middle of the catheter to perfuse the right common carotid artery, and on the other hand, blood flow can enter from the left common carotid artery through the left common carotid blood flow passage to perfuse the left common carotid artery. At this time, the aortic stent graft may be perforated by the left cervical total puncture sheath. After the aortic covered stent is punctured by the left common carotid artery, as shown in fig. 4, the knob on the blood passage of the innominate artery is adjusted to close the through hole in the middle of the sheath tube, and the proximal opening of the blood passage of the innominate artery is retracted above the covered stent, so that blood flows into the left common carotid artery and the right common carotid artery from the left common carotid artery puncture sheath through the three-way valve respectively, and the perfusion of the blood of the left common carotid artery and the right common carotid artery can be ensured in all the above operation operations.

It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention, and any minor changes and modifications made in the present invention are included in the scope of the present invention without departing from the spirit of the present invention.

Claims

1. The utility model provides a novel transfer pipe, its characterized in that includes the innominate arterial blood flow passageway, the innominate arterial blood flow passageway comprises outer tube and inlayer tube, and the distal end tip is equipped with controllable closed blood flow control knob of through-hole, innominate arterial blood flow passageway passes through three-way valve connection left common carotid puncture sheath and left common carotid blood flow passageway, is equipped with one or more closable through-hole on the innominate arterial blood flow passageway.

2. The novel shunt catheter according to claim 1, wherein the through hole is provided in the middle of the innominate arterial blood flow path.

3. A novel shunt catheter according to claim 1 wherein said inner tube is rotatable relative to said outer tube.

4. The novel shunt catheter of claim 1, wherein the blood flow control knob is connected to the inner tube.

5. The novel shunt catheter of claim 1, wherein the left carotid puncture sheath and left carotid blood flow path are distal to the innominate arterial blood flow path.