CN110934674B

CN110934674B - Cuff device for isolating aneurysm cavity of aorta inner wall and using method

Info

Publication number: CN110934674B
Application number: CN201911275669.0A
Authority: CN
Inventors: 毛文君; 高宏; 钱建民; 陈静瑜; 卢辉俊
Original assignee: Wuxi Holy Noah Technology Co ltd; Wuxi Peoples Hospital
Current assignee: Wuxi Holy Noah Technology Co ltd; Wuxi Peoples Hospital
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2022-10-14
Anticipated expiration: 2039-12-12
Also published as: CN110934674A

Abstract

The invention belongs to the field of medical equipment, and particularly relates to a cuff device for isolating an aneurysm cavity on the inner wall of an aorta and a using method of the cuff device. Therefore, after the cuff device is implanted, fluid is injected through the cuff release controller to enable the cuff device to be expanded into a tubular structure, so that a tumor cavity is isolated, the fluid is extracted through the cuff release controller to enable the cuff device to shrink, and therefore the cuff device is taken out, and the problems that an existing metal covered stent cannot be taken out after being implanted and the metal covered stent is high in price are solved.

Description

Cuff device for isolating aneurysm cavity of aorta inner wall and using method

Technical Field

The invention relates to the field of medical instruments, in particular to a cuff device for isolating an aneurysm cavity of an internal wall of an aorta and a using method.

Background

Aortic aneurysm (aorticaneurysm) refers to a local or diffuse dilatation of the aortic wall. The main hazards are the following: 1. the tumor body is broken, the tumor wall of the artery is gradually expanded and thinned under the continuous impact of blood flow, and finally the tumor body is broken to cause fatal hemorrhage; 2. wall-adhering thrombus is formed, blood flow at the expansion part of a tumor body is slow, eddy current is formed, if the inner surface of the tumor wall is rough, thrombus is easy to form, and the thrombus falls off to cause embolism; 3. the tumor body can press the surrounding normal tissues and organs to cause discomfort or other diseases, such as dysphagia caused by pressing the esophagus, dyspnea caused by pressing the trachea, hoarseness caused by pressing the recurrent laryngeal nerve, and the like.

The existing treatment methods comprise two kinds, one is an open operation, namely, abdominal opening or chest opening, mobile aneurysm excision and artificial blood vessel catheterization, and the traditional treatment method is large in operation wound, high in risk and high in corresponding requirements on the physical conditions of patients, so that a covered stent is generally selected to be implanted in an aorta through arterial puncture or a small incision to isolate an aneurysm cavity and reconstruct a blood flow path in situ.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a cuff device for isolating an aortic aneurysm cavity and a using method thereof, wherein the cuff device comprises a foldable tubular cuff, a cuff accommodating cavity, a cuff releaser and a pressure monitor, fluid is injected through the cuff release controller to expand the cuff device into a tubular structure after the cuff device is implanted, so that the aneurysm cavity is isolated, the fluid is extracted through the cuff releaser to contract the cuff, and the cuff device is taken out, so that the problems that the existing metal covered stent cannot be taken out after being implanted and the metal covered stent is high in price are solved. The method is realized by the following technical scheme:

the utility model provides a cuff device for insulating aorta inner wall aneurysm chamber, is used for keeping apart the collapsible tubular cuff in aneurysm chamber, is used for accomodating and releasing in the aorta collapsible tubular cuff bag internal pressure value and the monitor of aorta pressure value including putting into the aorta foldable tubular cuff, the collapsible tubular cuff tail end intercommunication is equipped with the connecting pipe, the connecting pipe tail end is equipped with fluid interface, chamber and cuff releaser are accomodate including the cuff to cuff release controller, collapsible tubular cuff is packed into with tubular structure major axis folding deformation back in the cuff accomodates the intracavity, the cuff releaser will collapsible tubular cuff releases outside the chamber is accomodate to the cuff, the monitor includes bag pressure monitor, aorta blood pressure monitor and bag pressure manager.

Further, the collapsible tubular cuff is provided with a development line along the long axis of the tubular structure, the development line being capable of being developed under X-ray.

Further, the foldable tubular cuff is formed with an inner side wall and an outer side wall, the inner side wall is provided with a plurality of reinforcing stems along the long axis direction of the tubular structure, and the reinforcing stems are distributed at intervals.

Further, under the support of the reinforcing stem, after the inflated foldable tubular cuff is fully exhausted, the foldable tubular cuff is folded and deformed in the long axis direction of the tubular structure to be in a long strip shape.

Further, the cross section area of the strip-shaped foldable tubular cuff is smaller than that of the cuff containing cavity, and the length of the strip-shaped foldable tubular cuff is smaller than that of the cuff containing cavity.

Further, the perimeter of the cross section of the inner side wall is smaller than that of the cross section of the outer side wall, and the length difference is not more than 1.5cm.

Further, the coefficient of friction of the outer sidewall is less than the coefficient of friction of the inner sidewall.

Furthermore, the length of the inner side wall is larger than that of the outer side wall, a single-layer inner side wall tubular area with the length difference of 4-5cm is formed, and a plurality of holes are formed in the single-layer inner side wall tubular area.

Furthermore, one side of the inner side wall, corresponding to the cell cavity, is provided with a cuff pressure monitoring probe, a cuff pressure monitoring line is embedded in the inner side wall, and the cuff pressure monitoring line is electrically connected with the cuff pressure monitoring probe; an arterial pressure monitoring probe is arranged on one side of the inner side wall corresponding to the inner side of the cavity of the tubular structure, an arterial pressure monitoring line is buried in the inner side wall, and the arterial pressure monitoring line is electrically connected with the arterial pressure monitoring probe; the cuff pressure monitoring line and the artery pressure monitoring line extend outwards from the tail end of the inner side wall and form a line bundle with the connecting pipe, and a cuff pressure monitoring connector, an artery pressure monitoring connector and the fluid interface are connected to the tail end of the line bundle respectively.

Further, the cuff containing cavity is a hollow thin-walled sleeve-shaped structure, the cuff releaser is a hollow thick-walled sleeve-shaped structure, the outer diameter of the cuff releaser is smaller than the inner diameter of the cuff containing cavity, and the inner diameter of the cuff releaser is larger than the outer diameters of the pipeline bundle, the cuff pressure monitoring joint, the arterial pressure monitoring joint and the fluid interface, so that the pipeline bundle, the cuff pressure monitoring joint, the arterial pressure monitoring joint and the fluid interface can all penetrate out of the cuff releaser.

Further, a sac pressure manager matched with the fluid interface is arranged in the monitor, when the foldable tubular cuff is inflated and the aneurysm cavity is isolated, the sac pressure manager injects or extracts fluid into or from the inflated foldable tubular cuff according to the pressure difference between the sac pressure monitor and the aortic blood pressure monitor, so that the pressure value of the sac pressure monitor is greater than that of the aortic blood pressure monitor, and the pressure difference is 20-30mmHg.

Furthermore, the sac pressure manager comprises an elastic fluid cavity, a pressing rod, a power device and a sac pressure processor, the sac pressure processor receives the pressure value of the sac pressure monitor and the pressure value of the aortic blood pressure monitor, the pressing rods are arranged on two sides of the elastic fluid cavity respectively, and the power device controls the pressing rods to be close to or far away from the elastic fluid cavity through feedback of the sac pressure processor.

Further, when the pressure difference value of the cuff pressure value minus the aortic blood pressure monitor pressure value is smaller than 20-30mmHg, the cuff pressure processor controls the power device to move the pressing rod to the direction close to the elastic fluid cavity, the pressing rod strengthens the extrusion on the elastic fluid cavity, the fluid in the elastic fluid cavity (331) enters the foldable tubular cuff through the fluid interface and the connecting pipe to increase the fluid in the foldable tubular cuff, and the cuff pressure value is increased, so that the pressure difference value of the cuff pressure value minus the aortic blood pressure monitor pressure value is within 20-30 mmHg; when the pressure difference value obtained by subtracting the pressure value of the aorta blood pressure monitor from the pressure value of the cuff pressure monitor is larger than 20-30mmHg, the cuff pressure processor controls the power device to enable the pressing rod to move towards the direction away from the elastic fluid cavity, the pressing rod relieves the extrusion on the elastic fluid cavity, the pressure in the elastic fluid cavity is reduced, the fluid in the foldable tubular cuff enters the elastic fluid cavity through the connecting pipe and the fluid interface to reduce the fluid in the foldable tubular cuff, and the pressure value of the cuff pressure is reduced, so that the pressure difference value obtained by subtracting the pressure value of the aorta blood pressure monitor from the pressure value of the cuff pressure monitor is within 20-30mmHg.

A method of using a cuff device for isolating the lumen of an aortic aneurysm, comprising the steps of:

the method comprises the following steps: performing controlled blood pressure reduction on a patient, and controlling the systolic pressure of the patient to be 80-100mmHg;

step two: femoral artery puncture, the guide wire is placed into the artery cavity;

step three: under the guidance of a guide wire, expanding a vascular laceration, and placing an outer sheath tube into a femoral artery;

step four: pulling out the guide wire, placing the cuff release controller with the foldable tubular cuff in the head end into the femoral artery through the outer sheath, and adjusting the foldable tubular cuff to the optimal position corresponding to the isolation of the large aneurysm cavity under the radiography;

step five: fixing the cuff releaser, slowly retreating the cuff receiving cavity, and slowly releasing the foldable tubular cuff out of the cuff receiving cavity; pausing the operation of releasing the collapsible tubular cuff when only 2-3cm of the collapsible tubular cuff remains within the cuff receiving cavity;

step six: monitoring the pressure in the foldable tubular cuff, slowly injecting fluid into the foldable tubular cuff through the fluid interface, and slowly expanding the foldable tubular cuff into a tubular structure, wherein when the foldable tubular cuff is expanded into the tubular structure, blood on the heart side of the artery can be discharged into an artery on the side far away from the heart through a plurality of holes on the inner side wall; stopping fluid injection when the internal pressure value of the foldable tubular cuff is 20-30mmHg higher than the systolic arterial pressure of the patient, namely the internal pressure value of the foldable tubular cuff is 110-140 mmHg;

step seven: fixing the cuff releaser again, slowly retreating the cuff containing cavity, completely releasing the foldable tubular cuff out of the cuff containing cavity, and immediately stopping retreating the cuff containing cavity;

step eight: immediately fixing the cuff containing cavity, slowly retreating the cuff releaser, and withdrawing the cuff releaser from the outer sheath tube;

step nine: slowly withdrawing the cuff receiving cavity and withdrawing the cuff receiving cavity from the outer sheath;

step ten: using a closer at the outer arterial laceration of the sheath tube, and embedding a closed thread at the femoral arterial laceration and the periphery of a tube bundle;

step eleven: the external sheath is pulled out, the purse-string suture is tightened and knotted, the line bundle is fixed, and the femoral artery laceration is closed;

step twelve: connecting the cuff pressure monitoring joint outside the collapsible tubular cuff femoral artery vessel to the cuff pressure monitor, the arterial pressure monitoring joint to the aortic pressure monitor, the fluid interface to the cuff pressure manager, initiating pressure management of the collapsible tubular cuff;

step thirteen: controlling the blood vessel of the patient, waiting for blood in the aneurysm cavity to coagulate for at least about two weeks; dilating the femoral artery laceration again through the tube bundle and placing the femoral artery laceration into an external sheath tube;

fourteen steps: withdrawing fluid from within the collapsible tubular cuff, collapsing the collapsible tubular cuff into compression, withdrawing the collapsible tubular cuff through the outer sheath;

step fifteen: using a closer at the artery laceration outside the sheath tube, and embedding a closed thread at the periphery of the femoral artery laceration;

sixthly, the steps are as follows: the external sheath tube is pulled out, the purse-string suture is tightened and knotted, and the femoral artery laceration is closed.

Compared with the prior art, the technical scheme has the following beneficial effects:

(1) The technical scheme provides a cuff device for isolating an aortic inner wall aneurysm cavity and a using method thereof, wherein the cuff device comprises a foldable tubular cuff, a cuff release controller and a monitor, and fluid is injected through the cuff release controller to expand the cuff device into a tubular structure after the cuff device is implanted, so that the aneurysm cavity is isolated;

(2) In the technical scheme, the foldable tubular cuff is placed in the cuff release controller and is connected with the monitor, and the cuff release controller is adjusted according to the pressure condition displayed by the monitor, so that the injection or output of fluid is controlled, and the pressure values of a patient and the cuff device are ensured to be within a normal range;

(3) The cuff device in the technical scheme can pump out the fluid in the foldable tubular cuff after blood in an aneurysm cavity is coagulated, so that the foldable tubular cuff is folded, compressed and taken out, and the problems that the existing metal covered stent cannot be taken out after being implanted and the metal covered stent is high in price are solved;

(4) The use method of the cuff device of the technical scheme is the same as that of the existing metal stent, can be applied without training doctors, is provided with a developing line, and is easy to observe whether the tumor cavity is accurately isolated.

Drawings

FIG. 1 is a schematic structural view of a cuff device for isolating the aneurysm cavity of the aortic inner wall according to the present invention;

FIG. 2 is an exploded view of a cuff device for isolating the lumen of an aortic aneurysm;

FIG. 3 is an enlarged schematic view of region A in FIG. 2;

FIG. 4 is a schematic diagram of the structure of a monitor in a cuff apparatus for isolating the aneurysm cavity of the aortic inner wall according to the present invention;

FIG. 5 is a schematic view of an embodiment of a cuff device for isolating the aneurysm cavity of the internal wall of an aorta of the present invention placed in an optimal isolation position of the aneurysm cavity of the aorta;

FIG. 6 is a schematic view of a retreat cuff accommodating chamber in the cuff apparatus for isolating an aneurysm cavity of an aortic inner wall according to an embodiment of the present invention;

FIG. 7 is a schematic view of an embodiment of the folded tubular cuff in a cuff device for isolating the aneurysm cavity of the aorta inner wall leaving only 2-3cm of the length in the cuff receiving cavity of the invention;

FIG. 8 is a schematic view of an embodiment of a collapsible tubular cuff of a cuff apparatus for isolating the lumen of an aortic aneurysm of the present invention inflated to a tubular configuration by injection of a fluid;

FIG. 9 is a schematic view of an embodiment of the present invention showing the foldable tubular cuff fully released outside the cuff receiving cavity in a cuff apparatus for isolating the aneurysm cavity of the aortic inner wall;

FIG. 10 is a schematic view of an embodiment of the cuff device for isolating the aneurysm cavity of the aortic inner wall of the present invention.

Reference numerals in the drawings of the specification include:

100-a collapsible tubular cuff; 110-an inner side wall; 111-reinforcement stems; 112-a single layer inner sidewall tubular region; 113-holes; 120-an outer sidewall; 200-a cuff release controller; 210-a cuff receiving cavity; 220-a cuff releaser; 300-a monitor; 310-a cystic pressure monitor; 311-cuff pressure monitoring probe; 312-cuff pressure monitor line; 313-cuff pressure monitoring junction; 320-aorta blood pressure monitor; 321-arterial pressure monitoring probe; 322-arterial pressure monitoring line; 323-arterial pressure monitoring connector; 330-cyst pressure manager; 331-an elastic fluid cavity; 332-pressing lever; 333-power plant; 334-a balloon compression processor; 400-connecting pipe; 410-a fluid interface; 500-development line; 600-line bundle.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, which are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, 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 should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be described in further detail below by way of specific embodiments:

as shown in fig. 1-4, it is a cuff apparatus for isolating aneurysm cavity of internal wall of aorta, comprising a foldable tubular cuff 100 for isolating aneurysm cavity, a cuff release controller 200 for receiving and releasing the foldable tubular cuff 100, and a monitor 300 for monitoring pressure value in the foldable tubular cuff 100 and pressure value of aorta, wherein the foldable tubular cuff 100 is connected to a connection tube 400 at its tail end, the connection tube 400 is provided with a fluid interface 410 at its tail end, when the foldable tubular cuff 100 is filled with fluid, it can be inflated and deformed into a tubular structure, and after the inflated foldable tubular cuff 100 is fully exhausted, the foldable tubular cuff 100 can be folded and deformed with the major axis of the tubular structure.

Specifically, the foldable tubular cuff 100 is provided with a development line 500 along the long axis of the tubular structure, the development line 500 can develop under X rays, and under the radiography, the foldable tubular cuff 100 can be adjusted to ensure that the foldable tubular cuff 100 is positioned at the optimal position corresponding to the isolation of the large aneurysm cavity.

Specifically, the foldable tubular cuff 100 is formed with an inner side wall 110 and an outer side wall 120, the circumference of the cross section of the inner side wall 110 is smaller than that of the cross section of the outer side wall 120, and the length difference is not more than 1.5cm, which is beneficial to ensuring that the inner side wall 110 can be folded, stretched and deformed along the long axis of the tubular structure; in this embodiment, the friction coefficient of the outer sidewall 120 is smaller than the friction coefficient of the inner sidewall 110, the length of the inner sidewall 110 is greater than the length of the outer sidewall 120, a single-layer inner-wall tubular region 112 with a length difference of 4-5cm is formed, and a plurality of holes 113 are arranged in the single-layer inner-wall tubular region 112, when fluid is slowly injected into the foldable tubular cuff (100) through the fluid interface 410, the foldable tubular cuff 100 is slowly expanded into a tubular structure, and blood on the arterial heart side can be discharged into an artery far away from the heart side through the plurality of holes 113 of the inner sidewall 110, so as to avoid blood coagulation.

Specifically, a plurality of reinforcing stems 111 are arranged on the inner side wall 110 along the long axis direction of the tubular structure, the reinforcing stems 111 are distributed at intervals, and under the support of the reinforcing stems 111, the inflated tubular foldable tubular cuff 100 can be folded and deformed into a long strip shape along the long axis direction of the tubular structure after being fully exhausted, so that the fixation of the foldable tubular cuff 100 is enhanced, and the problem of bending deformation caused by folding and deforming along the long axis of the tubular structure after being inflated or exhausted is solved.

Specifically, the cross-sectional area of the elongated foldable tubular cuff 100 is smaller than the cross-sectional area of the cuff receiving cavity 210, and the length of the elongated foldable tubular cuff 100 is smaller than the length of the cuff receiving cavity 210, so that the elongated foldable tubular cuff 100 can be placed into the cuff receiving cavity 210.

Specifically, one side of the inner side wall 110, which corresponds to the cell cavity, is provided with a cuff pressure monitoring probe 311, a cuff pressure monitoring line 312 is embedded inside the inner side wall 110, and the cuff pressure monitoring line 312 is electrically connected with the cuff pressure monitoring probe 311; an arterial pressure monitoring probe 321 is arranged on one side of the inner side wall 110 corresponding to the inner side of the cavity of the tubular structure, an arterial pressure monitoring line 322 is embedded in the inner side wall 110, and the arterial pressure monitoring line 322 is electrically connected with the arterial pressure monitoring probe 321; the cuff pressure monitoring line 312 and the artery pressure monitoring line 322 extend outwards from the rear end of the inner side wall 110 and form a line bundle 600 with the connecting pipe 400, and the cuff pressure monitoring connector 313, the artery pressure monitoring connector 323 and the fluid interface 410 are respectively connected to the rear end of the line bundle 600.

Specifically, the cuff release controller 200 comprises a cuff receiving cavity 210 and a cuff releaser 220, the foldable tubular cuff 100 is folded and deformed by a long axis of a tubular structure and then placed in the cuff receiving cavity 210, the cuff releaser 220 releases the foldable tubular cuff 100 out of the cuff receiving cavity 210, and the inner diameter of the cuff releaser 220 is larger than the outer diameters of the pipeline bundle 600, the cuff pressure monitoring joint 313, the artery pressure monitoring joint 323 and the fluid interface 410, so that the pipeline bundle 600, the cuff pressure monitoring joint 313, the artery pressure monitoring joint 323 and the fluid interface 410 can penetrate out of the cuff releaser 220.

Specifically, a balloon pressure manager 330 adapted to the fluid interface 410 is disposed in the monitor 300, and when the foldable tubular cuff 100 is inflated and isolated from the aneurysm cavity, the balloon pressure manager 330 injects or extracts fluid into or from the inflated foldable tubular cuff 100 according to a pressure difference between the balloon pressure monitor 310 and the aortic blood pressure monitor 320, so that a pressure value of the balloon pressure monitor 310 is greater than a pressure value of the aortic blood pressure monitor 320, and the pressure difference is 20-30mmHg.

Specifically, the sac pressure manager 330 includes an elastic fluid chamber 331, a pressing rod 332, a power device 333, and a sac pressure processor 334, the sac pressure processor 334 receives the pressure value of the sac pressure monitor 310 and the pressure value of the aortic blood pressure monitor 320, the pressing rods 332 are respectively disposed at both sides of the elastic fluid chamber 331, and the power device 333 controls the pressing rod 332 to approach or depart from the elastic fluid chamber 331 through feedback of the sac pressure processor 334.

Specifically, when the pressure difference value obtained by subtracting the pressure value of the aortic blood pressure monitor 320 from the pressure value of the cuff pressure monitor 310 is less than 20-30mmHg, the cuff pressure processor 334 controls the power device 333 to move the pressing rod 332 towards the direction close to the elastic fluid cavity 331, the pressing rod 332 strengthens the extrusion on the elastic fluid cavity 331, so that the fluid in the elastic fluid cavity 331 enters the foldable tubular cuff 100 through the fluid interface 410 and the connecting pipe 400, the fluid in the foldable tubular cuff 100 is increased, the pressure value of the cuff pressure monitor 310 is increased, and the pressure difference value obtained by subtracting the pressure value of the aortic blood pressure monitor 320 from the pressure value of the cuff pressure monitor 310 is within 20-30 mmHg; when the pressure difference between the pressure value of the cuff pressure monitor 310 and the pressure value of the aorta blood pressure monitor 320 is larger than 20-30mmHg, the cuff pressure processor 334 controls the power device 333 to move the pressing rod 332 away from the elastic fluid cavity 331, the pressing rod 332 relieves the extrusion on the elastic fluid cavity 331, the pressure in the elastic fluid cavity 331 drops, the fluid in the foldable tubular cuff 100 enters the elastic fluid cavity 331 through the connecting pipe 400 and the fluid interface 410 to reduce the fluid in the foldable tubular cuff 100, the pressure value of the cuff pressure monitor 310 drops, so that the pressure difference between the pressure value of the cuff pressure monitor 310 and the pressure value of the aorta blood pressure monitor 320 is within 20-30mmHg, the cuff pressure monitor 310 can effectively monitor the pressure and the aorta pressure of the foldable tubular cuff 100, and the cuff 100 can be controlled to be injected or output by the pressure value displayed by the cuff 310 mmHg by the cuff pressure processor 334, so that the pressure values of the cuff 100 and the aorta pressure are within a normal range, and the life threat to the patient is avoided.

5-10, a method of using a cuff device for isolating the lumen of an aortic aneurysm, comprising the steps of:

step four: pulling out the guide wire, placing the cuff release controller 200 with the foldable tubular cuff 100 at the head end into the femoral artery through the outer sheath, and adjusting the foldable tubular cuff 100 to the optimal position corresponding to the isolation of the aortic aneurysm cavity under radiography (as shown in fig. 5);

step five: fixing a cuff releaser 220, slowly retreating the cuff accommodating cavity 210 (shown in figure 6) to make the foldable tubular cuff 100 slowly released out of the cuff accommodating cavity 210; pausing the operation of releasing the collapsible tubular cuff 100 when only 2-3cm of the collapsible tubular cuff 100 remains within the cuff receiving cavity 210 (as shown in figure 7);

step six: monitoring the pressure in the foldable tubular cuff 100, slowly injecting fluid into the foldable tubular cuff 100 through the fluid interface 410, and slowly expanding the foldable tubular cuff 100 into a tubular structure (as shown in figure 8), wherein when the foldable tubular cuff 100 is expanded into the tubular structure, blood on the heart side of the artery can be discharged into the artery on the side far away from the heart through a plurality of holes 113 on the inner side wall (110); the pressure value in the foldable tubular cuff 100 is made to be 20-30mmHg more than the systolic arterial pressure of a patient, namely, when the pressure value in the foldable tubular cuff 100 is 110-140mmHg, the fluid injection is stopped;

step seven: fixing the cuff releaser 220 again, slowly retreating the cuff accommodating cavity 210 to completely release the foldable tubular cuff 100 out of the cuff accommodating cavity 210 (as shown in fig. 9), and immediately stopping retreating the cuff accommodating cavity 210;

step eight: immediately fixing the cuff accommodating cavity 210, slowly withdrawing the cuff releaser 220, and withdrawing the cuff releaser 220 from the outer sheath;

step nine: slowly withdrawing the cuff accommodating cavity 210, and withdrawing the cuff accommodating cavity 210 from the outer sheath;

step ten: using a closer at the outer arterial laceration of the sheath tube to embed a closed thread in the femoral arterial laceration and the periphery of a tube bundle;

step twelve: connecting a cuff pressure monitoring connector 313 outside a femoral artery of the foldable tubular cuff 100 with a cuff pressure monitor 310, connecting an artery pressure monitoring connector 323 with a aorta pressure monitor 320, connecting a fluid interface 410 with a cuff pressure manager 330, and starting pressure management on the foldable tubular cuff 100;

fourteen steps: withdrawing fluid from the collapsible tubular cuff 100, collapsing the collapsible tubular cuff 100 into compression, and withdrawing the collapsible tubular cuff 100 through the outer sheath;

step fifteen: using a closer at the outer side of the sheath tube at the artery laceration to embed a closing thread at the periphery of the femoral artery laceration;

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. A cuff device for isolating an aneurysm cavity on the inner wall of an aorta comprises a foldable tubular cuff (100) which is placed in the aorta and used for isolating the aneurysm cavity, a cuff release controller (200) which is used for containing and releasing the foldable tubular cuff (100), and a monitor (300) which is used for monitoring the pressure value in a sac of the foldable tubular cuff (100) and the pressure value of the aorta, and is characterized in that the tail end of the foldable tubular cuff (100) is communicated with a connecting pipe (400), and the tail end of the connecting pipe (400) is provided with a fluid interface (410); the foldable tubular cuff (100) can be inflated and deformed into a tubular structure after being filled with fluid, and after the inflated foldable tubular cuff (100) is fully exhausted, the foldable tubular cuff (100) is folded and deformed by a long axis of the tubular structure; providing a development line (500) on said collapsible tubular cuff (100) along the long axis of the tubular structure, said development line (500) being capable of being developed under X-ray; the collapsible tubular cuff (100) is formed with an inner sidewall (110) and an outer sidewall (120), the inner sidewall (110) having a cross-sectional perimeter that is less than the cross-sectional perimeter of the outer sidewall (120) and lengths that differ by no more than 1.5cm; the coefficient of friction of the outer sidewall (120) is less than the coefficient of friction of the inner sidewall (110); the length of the inner side wall (110) is larger than that of the outer side wall (120), a single-layer inner side wall tubular area (112) with the length difference of 4-5cm is formed, a plurality of holes (113) are formed in the single-layer inner side wall tubular area (112), when fluid is slowly injected into the foldable tubular cuff (100) through the fluid interface (410), the foldable tubular cuff (100) is slowly expanded into a tubular structure, and blood on the side of an artery heart can be discharged into the artery far away from the heart through the plurality of holes (113) in the inner side wall (110); a plurality of reinforcing stems (111) are arranged on the inner side wall (110) along the long axis direction of the tubular structure, the reinforcing stems (111) are distributed at intervals, and the inflated tubular foldable tubular cuff (100) can be folded and deformed into a long strip shape along the long axis direction of the tubular structure after being fully exhausted under the support of the reinforcing stems (111); one side of the inner side wall (110) corresponding to the cell cavity is provided with a cuff pressure monitoring probe (311), a cuff pressure monitoring line (312) is embedded in the inner side wall (110), and the cuff pressure monitoring line (312) is electrically connected with the cuff pressure monitoring probe (311); an arterial pressure monitoring probe (321) is arranged on one side of the inner side wall (110) corresponding to the inner side of the cavity of the tubular structure, an arterial pressure monitoring line (322) is buried in the inner side wall (110), and the arterial pressure monitoring line (322) is electrically connected with the arterial pressure monitoring probe (321); the cuff pressure monitoring line (312) and the artery pressure monitoring line (322) extend outwards from the tail end of the inner side wall (110) and form a pipeline bundle (600) with the connecting pipe (400), and a cuff pressure monitoring joint (313), an artery pressure monitoring joint (323) and the fluid interface (410) are respectively connected to the tail end of the pipeline bundle (600); the cuff release controller (200) comprises a cuff receiving cavity (210) and a cuff releaser (220), the foldable tubular cuff (100) is placed in the cuff receiving cavity (210) after being folded and deformed by a long axis of a tubular structure, and the cuff releaser (220) releases the foldable tubular cuff (100) out of the cuff receiving cavity (210); the inner diameter of the cuff releaser (220) is larger than the outer diameters of the pipeline bundle (600), the cuff pressure monitoring joint (313), the arterial pressure monitoring joint (323) and the fluid interface (410), so that the pipeline bundle (600), the cuff pressure monitoring joint (313), the arterial pressure monitoring joint (323) and the fluid interface (410) can penetrate out of the cuff releaser (220); the cuff accommodating cavity (210) is of a hollow thin-wall sleeve-shaped structure, the cuff releaser (220) is of a hollow thick-wall sleeve-shaped structure, and the outer diameter of the cuff releaser (220) is smaller than the inner diameter of the cuff accommodating cavity (210); the monitor (300) comprises a cuff pressure monitor (310), an aortic blood pressure monitor (320) and a cuff pressure manager (330); the sac pressure manager (330) comprises an elastic fluid cavity (331), a pressing rod (332), a power device (333) and a sac pressure processor (334), the sac pressure processor (334) receives the pressure value of the sac pressure monitor (310) and the pressure value of the aorta blood pressure monitor (320), the pressing rods (332) are respectively arranged on two sides of the elastic fluid cavity (331), and the power device (333) controls the pressing rods (332) to be close to or far away from the elastic fluid cavity (331) through the feedback of the sac pressure processor (334); a sac pressure manager (330) matched with the fluid interface (410) is arranged in the monitor (300), when the foldable tubular cuff (100) is full and isolates an aneurysm cavity, the sac pressure manager (330) injects or extracts fluid into the full foldable tubular cuff (100) according to the pressure difference between the sac pressure monitor (310) and the aorta blood pressure monitor (320), so that the pressure value of the sac pressure monitor (310) is greater than that of the aorta blood pressure monitor (320), and the pressure difference is 20-30mmHg.

2. The cuff device for isolating an aortic aneurysm cavity according to claim 1, wherein the cross-sectional area of the foldable tubular cuff (100) is smaller than the cross-sectional area of the cuff receiving cavity (210), and the length of the foldable tubular cuff (100) is smaller than the length of the cuff receiving cavity (210).

3. The cuff device for isolating an aneurysm cavity of an internal aortic wall according to any one of claims 1 or 2, wherein when a pressure difference value obtained by subtracting a pressure value of the aortic blood pressure monitor (320) from a pressure value of the cuff pressure monitor (310) is less than 20-30mmHg, the cuff pressure processor (334) controls the power device (333) to move the pressing rod (332) in a direction close to the elastic fluid chamber (331), the pressing rod (332) reinforces the pressing of the elastic fluid chamber (331), the fluid in the elastic fluid chamber (331) enters the foldable tubular cuff (100) through the fluid interface (410) and the connecting tube (400), the fluid in the foldable tubular cuff (100) is increased, and the pressure value of the cuff pressure monitor (310) is increased, so that a pressure difference value obtained by subtracting the pressure value of the aortic blood pressure monitor (320) from the pressure value of the cuff monitor (310) is within 20-30 mmHg; when the pressure difference value of the pressure value of the cuff pressure monitor (310) minus the pressure value of the aortic blood pressure monitor (320) is greater than 20-30mmHg, the cuff pressure processor (334) controls the power device (333) to move the pressing rod (332) in a direction away from the elastic fluid cavity (331), the pressing rod (332) relieves the extrusion on the elastic fluid cavity (331), the pressure in the elastic fluid cavity (331) drops, the fluid in the foldable tubular cuff (100) enters the elastic fluid cavity (331) through the connecting pipe (400) and the fluid interface (410) to reduce the fluid in the foldable tubular cuff (100), and the pressure value of the cuff pressure monitor (310) drops, so that the pressure difference value of the pressure value of the cuff pressure monitor (310) minus the pressure value of the aortic blood pressure monitor (320) is within 20-30mmHg.