CN216603193U

CN216603193U - Temporary valve and aorta filter integrated device

Info

Publication number: CN216603193U
Application number: CN202122973735.0U
Authority: CN
Inventors: 金珉; 王东进; 周庆; 李树春; 赵格非
Original assignee: Nanjing Drum Tower Hospital
Current assignee: Nanjing Drum Tower Hospital
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-05-27
Anticipated expiration: 2031-11-30

Abstract

The utility model discloses a temporary valve and aorta filter integrated device, which is characterized in that: comprises a first pipeline, a sacculus, a valve and a filter, wherein the first pipeline is communicated with the sacculus; the filter is in a conical bag shape, the half perimeter edge of the opening of the filter is fixedly connected with the upper end surface of the balloon, and the opening of the filter is positioned on the inner side surface of the balloon; the valve is of a double-leaf structure, each valve leaf is in a bag shape, the half perimeter edge of the opening of each valve leaf is fixedly connected with the lower end face of the balloon, and the valve leaf is symmetrical about the middle of the balloon. The utility model solves the problem that the filter and the temporary valve are not compatible, has certain compatibility and can be used together with other devices such as an intervention valve, an intervention saccule and the like; the filter and the valve of the device are of an integrated structure, and the device has the characteristics of relatively simple structure and low possibility of failure of instruments, has relatively low requirement on the diameter of a conveying pipe cavity due to relatively simple structure, can adapt to more people, and is also favorable for reducing the manufacturing cost.

Description

Interim valve and aorta filter integrated device

Technical Field

The utility model relates to a temporary aortic valve, in particular to a temporary valve and aortic filter integrated device.

Background

The valvular heart disease is a disease seriously harming the life health of human beings, and with the age-old age of the population, more and more patients with the aortic valvular heart disease present the characteristics of high age and high risk. With the development of medical technology, percutaneous aortic valve implantation (TAVR) is emerging, and the TAVR is increasingly used for treating various clinical diseases due to its small incision, low trauma, fast recovery, and the like. However, since the operation is performed on an aortic stenosis patient, dangerous operations such as balloon dilatation are required during the operation, secondary severe aortic regurgitation after balloon dilatation of the valve easily occurs, and then the patient is suffered from hemodynamic collapse and even death, during the operation, the arrangement of a temporary valve to reduce the regurgitation of the left ventricle becomes a possible way to prevent the severe complications. Meanwhile, most patient valve leaflets have serious calcification, and in the process of balloon expansion, the calcification of the valve leaflets can enter organs such as brain, limbs and the like through an aorta after being extruded and fallen by the balloon to cause serious complications of embolism and necrosis of related organs, so that the arrangement of a temporary filter for throttling the fallen calcified tissues becomes a feasible intervention means.

At present, no effective temporary valve exists, the temporary valve can have the functions of an arterial filter and a temporary valve, and the existing temporary valve technical means does not have the compatibility of being used together with other temporary valves. Meanwhile, the aorta filter used for clinic is complex in structure and high in cost, so that the temporary valve device which is simple in structure and effective and has the filter is manufactured, and a key effective guarantee means is provided for aortic stenosis patients needing TAVR operation.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a temporary valve and aorta filter integrated device, which solves the problems that the filter and the temporary valve cannot be implanted simultaneously and a plurality of blood vessels are occupied to cause that balloon expansion and valve implantation cannot be performed simultaneously; the device has certain compatibility, can be used together with other devices such as an intervention valve and an intervention balloon, and can effectively provide a safeguard means for aortic stenosis patients who need to carry out TAVR operations.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a temporary valve and aortic filter integrated device, comprising: the device comprises a first pipeline, a balloon, a valve and a filter, wherein a channel A for conveying a contrast agent is arranged in the first pipeline, the balloon is C-shaped, a cavity is arranged in the balloon, and the first pipeline is communicated with the balloon and is perpendicular to the C-shaped plane of the balloon; the filter is in a cone bag shape, the bag is in a single-opening structure, the lower end of the cone is an open circular bag opening, the top end of the cone is in a closed bag structure, the edge of one half of the circumference of the opening of the filter is fixedly connected with the upper end face of the balloon, and the opening of the filter is positioned on the inner side of the C-shaped balloon; the valve comprises two valve leaflets, the valve leaflets are in a bag shape, the half perimeter edge of the opening of one valve leaflet is fixedly connected with the lower end face of the balloon, the connection position is located from the middle of the C-shaped balloon to one end on the right side, the half perimeter edge of the opening of the other valve leaflet is symmetrically and fixedly arranged with the valve leaflet 3 on the right side from the middle of the lower end face of the balloon to one end on the left side, a double-leaflet structure is formed, and the openings of the two valve leaflets are located on the inner side of the C-shaped balloon.

In order to optimize the technical scheme, the specific measures adopted further comprise:

further, the first conduit communicates with the balloon via a connecting tube disposed radially with respect to the "C" shaped balloon and located inside the "C" shaped balloon.

Further, the connecting tube is located at the middle position of the balloon.

The guide wire guiding device comprises a first pipeline, a second pipeline and a guide wire, wherein a channel B for the guide wire to pass through is formed in the first pipeline; the first pipeline is arranged in the inner wall of the second pipeline, and the second pipeline is provided with a through hole for the connecting pipe to extend out.

Further, the pipeline conveying device further comprises a conveying pipe cavity, a large channel C is formed inside the conveying pipe cavity, and the conveying pipe cavity is sleeved on the second pipeline.

The utility model has the beneficial effects that:

the present document provides a temporary valve and aortic filter integrated device: 1. the balloon is fixed through the balloon, the balloon is of a soft structure, and serious complications such as aortic rupture and the like caused by the damage of the aortic wall due to the scratch of the edge of an instrument are not easy to occur; 2. the balloon is of a C-shaped structure, and any end of the balloon can be bent into the inner side of the other end, so that the device can be more accurately adapted to the diameter of the aorta when in use, and meanwhile, the device can be adapted to the change of the diameter of the aorta in real time in the operation process due to the non-uniform diameter condition of the aorta; 3. because the sacculus is of a C-shaped structure and is of a non-closed loop structure, devices such as an intervention valve, an intervention sacculus and the like can be parallelly arranged in the aorta with the device and independently operated, meanwhile, a conveying system for moving the intervention valve and the intervention sacculus can be replaced in real time, and the device is suitable for intervention valves and intervention sacculus of conveying systems with different diameters, has stronger adaptability, does not need to produce equipment with excessive models, and is favorable for reducing the product cost and improving the simplicity, convenience and effectiveness of the stock and the use process of the patent; 4. the filter and the valve of the device are of an integrated structure, and the device has the characteristics of relatively simple structure and low possibility of failure of instruments, has relatively low requirement on the diameter of a conveying pipe cavity due to relatively simple structure, can adapt to more people, and is also favorable for reducing the manufacturing cost.

Drawings

FIG. 1 is a schematic plan deployment view of a temporary valve and aortic filter integrated device;

FIG. 2 is a schematic view of a valve portion of a temporary valve and aortic filter integrated device;

FIG. 3 is a schematic view of the filter portion of a temporary valve and aortic filter integrated device;

FIG. 4 is a side view during use of a temporary valve and aortic filter integrated device.

Reference numerals: 1. the device comprises a first pipeline, a balloon 2, valve leaflets 3, a filter 4, a second pipeline 5, a delivery tube cavity 6 and a connecting pipe 7.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

It should be noted that the terms "upper", "lower", "left", "right", "front", "back", etc. used in the present invention are for clarity of description only, and are not intended to limit the scope of the utility model, and the relative relationship between the terms and the terms is not limited by the scope of the utility model.

As shown in the attached drawings, a temporary valve and aortic filter integrated device is characterized in that: comprises a first pipeline 1, a balloon 2, a valve and a filter 4. The interior of the first pipeline 1 is a channel A for conveying contrast medium, the balloon 2 is C-shaped, and the interior is a cavity; the first pipeline 1 is communicated with the balloon 2 through a connecting pipe 7 and is arranged perpendicular to the C-shaped plane of the balloon 2; the connecting pipe 7 is arranged in the radial direction of the C-shaped balloon 2 and is positioned at the inner side of the C-shaped balloon 2, and the connecting pipe 7 is positioned at the middle position of the balloon 2. The filter 4 is in the shape of a cone bag, the bag is in a single-opening structure, the lower end of the cone is an open circular bag opening, the top end of the cone is in a closed bag structure, the edge of one half of the circumference of the opening of the filter 4 is fixedly connected with the upper end face of the balloon 2, and the opening of the filter 4 is positioned on the inner side of the C-shaped balloon 2. The valve comprises two valve leaflets 3, and the valve leaflets 3 are bag-shaped; the half perimeter edge at the opening of the valve leaflet 3 is fixedly connected with the lower end face of the balloon 2, and the connection position is positioned from the middle to one end on the right side of the C-shaped balloon 2; the half perimeter edge of the opening of the other leaflet 3 is also fixedly arranged from the middle of the lower end surface of the balloon 2 to one end on the left side, the leaflets 3 on the left side and the right side are symmetrical relative to the middle position of the C-shaped balloon, and are respectively connected with the balloon by half long axis length, so that a double-leaf mechanism is formed, the functionality of the temporary leaflet can be better ensured, and the openings of the two leaflets 3 are positioned on the inner side of the C-shaped balloon 2. Both leaflets 3 and filter 4 are secured to a "C" shaped balloon 2 to form a unitary structure.

The device also comprises a second pipeline 5, wherein a channel B for the guide wire to pass through is formed in the second pipeline 5; the first pipeline 1 is arranged in the inner wall of the second pipeline 5, and the second pipeline 5 is provided with a through hole for the connecting pipe 7 to extend out.

The device further comprises a conveying pipe cavity 6, a large channel C is formed inside the conveying pipe cavity 6, and the conveying pipe cavity 6 is sleeved on the second pipeline 5.

The sacculus 2 in the device is of a soft structure, so that serious complications such as aortic rupture and the like caused by the damage of the aortic wall due to the scratch of the edge of an instrument are not easy to occur; the filter 4 is a medical high polymer material film which can filter substances such as thrombus, calcified masses and the like falling off in the aortic valve balloon expansion process, the material film is a film with holes, and the hole diameter of the material film allows normal blood cells to pass through but can block the thrombus and the calcified masses falling off in the aortic valve balloon expansion process.

The use method of the utility model comprises the following steps:

step 1, enabling a C-shaped sacculus 2 in a state of not being filled with a contrast medium to be in a curling state, enabling the sacculus 2 at the moment to be connected with a filter 4 fixedly connected with the upper end face of the sacculus 2 and two valve leaflets 3 symmetrically and fixedly connected with the lower end face of the sacculus 2 to surround and cling to the side wall of a second pipeline 5; then the second pipeline 5 and the wrapped saccule 2 are arranged in a channel C of the delivery lumen 6;

step 2, the guide wire penetrates into the body of a patient through a femoral artery blood vessel or other blood vessel access, and after reaching a specified position along the aorta, the conveying lumen 6 is connected with the guide wire by virtue of the second pipeline 5 and is pulled to the specified position by the guide wire; after the delivery lumen 6 reaches the designated position, the second pipeline 5 is extended out, and the balloon 2 is partially placed at the ascending aorta of the patient;

step 3, the aortic valve expansion balloon is inserted into the body of the patient through the other side femoral artery or other vascular access and reaches the upper part of the diseased aortic valve, and the aortic valve expansion balloon is a balloon device which is used for expanding the stenotic aortic valve and is required in the interventional valve intervention process;

step 4, after the balloon 2 reaches a designated position, filling the balloon 2 through the first pipeline 1 and a connecting pipe 7 for connecting the first pipeline 1 and the balloon 2, wherein the originally shriveled balloon 2 is injected with a contrast medium through the first pipeline and is expanded into a C shape due to the filling of the contrast medium; because of the C-shaped structure and the soft structure of the balloon 2, any end of the balloon 2 can be bent into the inner side of the other end, the balloon 2 can be more accurately adapted to fit the diameter of the aorta, meanwhile, due to the inconsistent diameter condition of the aorta, the change of the diameter of the aorta can be adapted in real time in the operation process, and serious complications such as aortic rupture and the like caused by injury of the aorta wall due to scraping of the aorta wall can be avoided; meanwhile, the filter 4 connected with the balloon 2 is expanded along with the flexible structure, one surface of the inner side of the filter 4 is tightly attached to the outer wall of the second pipeline 5, and the opening of the filter 4 is opened to enter the operation; the double-leaf structure valve leaf 3 connected with the balloon 2 is correspondingly propped open, one surface of the inner side of the two valve leaves 3 is clung to the outer wall of the second pipeline 5, and the temporary working state during the operation is achieved; at the moment, due to the C-shaped balloon structure, the valve and the filter of the device wrap the delivery system at the far end of the aortic valve expansion balloon from outside, when the aortic valve balloon is filled with contrast medium injected from outside, calcified tissues on the valve of a patient are loosened and fall off, the calcified tissues pass through the valve of the device and enter the filter 4, and the calcified tissues are blocked in the filter 4, so that the embolism events of visceral organs such as cerebral infarction and the like caused by the fact that blood flow of the calcified tissues enters visceral organs such as brain and the like are avoided. Meanwhile, after the aortic valve expansion balloon is full, the contrast medium can be rapidly pumped out in vitro to restore the forward blood flow of the aortic valve, the operation can cause serious damage of the aortic valve to cause incomplete closure of the aortic valve, the valve of the device can prevent the blood flow from flowing back to the left chamber from the aortic arch and descending aorta, and the serious cardiovascular complication of circulatory collapse caused by the increase of left chamber blood stasis capacity load is avoided;

and 5, after the aortic valve expansion balloon is withdrawn from the body to the outside, the interventional aortic valve conveying system can pass through an encircling structure formed by the valve and the filter of the device in parallel through the guide wire of the original aortic valve expansion balloon and reach the position of the autologous aortic valve of the patient, and the implanted interventional valve is released according to the relevant procedure of the interventional valve. In the process, because of the C-shaped structure of the balloon 2, the diameter change of the conveying systems of devices such as an interventional valve, an interventional balloon and the like can be better corresponded, the same temporary valve filter structure is adapted to the diameter change of different interventional conveying devices in the operation, and the ascending aorta is always tightly closed, so that the valve and the filter of the device are tightly attached to the ascending aorta and the conveying systems of the interventional valve and the balloon;

and 6, after the operation is finished, withdrawing the interventional valve conveying system, pumping out the contrast medium from the inside of the balloon 2 through the first pipeline 1, recovering the balloon 2 to be in a shriveled state, taking the balloon into the conveying tube cavity 6 through the second pipeline 5, drawing out the inside of the patient through the guide wire, finally pumping out the guide wire, and carrying out corresponding treatment on the wound.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may be made by those skilled in the art without departing from the principle of the utility model.

Claims

1. A temporary valve and aortic filter integrated device, comprising: the device comprises a first pipeline (1), a balloon (2), a valve and a filter (4), wherein a channel A for conveying contrast agent is arranged in the first pipeline (1), the balloon (2) is C-shaped, a cavity is arranged in the balloon, and the first pipeline (1) is communicated with the balloon (2) and is perpendicular to the C-shaped plane of the balloon (2); the filter (4) is in a cone bag shape, the bag is in a single-opening structure, the lower end of the cone is an open circular bag opening, the top end of the cone is in a closed bag structure, the edge of one half of the circumference of the opening of the filter (4) is fixedly connected with the upper end face of the balloon (2), and the opening of the filter (4) is positioned on the inner side of the C-shaped balloon (2); the valve comprises two valve leaflets (3), the valve leaflets (3) are in a bag shape, the half perimeter edge of the opening of one valve leaflet (3) is fixedly connected with the lower end face of the balloon (2), the connection position is located from the middle to one end on the right side of the C-shaped balloon (2), the half perimeter edge of the opening of the other valve leaflet (3) is symmetrically and fixedly arranged from the middle to one end on the left side of the lower end face of the balloon (2) with the valve leaflet (3) on the right side, a double-leaflet structure is formed, and the openings of the two valve leaflets (3) are located on the inner side of the C-shaped balloon (2).

2. A temporary valve and aortic filter integrated device as claimed in claim 1, wherein: the first pipeline (1) is communicated with the balloon (2) through a connecting pipe (7), and the connecting pipe (7) is radially arranged relative to the C-shaped balloon (2) and is positioned on the inner side of the C-shaped balloon (2).

3. A temporary valve and aortic filter integrated device as claimed in claim 2, wherein: the connecting pipe (7) is positioned in the middle of the balloon (2).

4. A temporary valve and aortic filter integrated device as claimed in claim 3, wherein: the guide wire guiding device is characterized by also comprising a second pipeline (5), wherein a channel B for the guide wire to pass through is formed in the second pipeline (5); the first pipeline (1) is arranged in the inner wall of the second pipeline (5), and the second pipeline (5) is provided with a through hole for the connecting pipe (7) to extend out.

5. A temporary valve and aortic filter integration apparatus as claimed in claim 4, wherein: the pipeline conveying device is characterized by further comprising a conveying pipe cavity (6), wherein a large channel C is formed inside the conveying pipe cavity (6), and the conveying pipe cavity (6) is sleeved on the second pipeline (5).