Perfusion type blocking balloon assembly for kidney aorta

Abstract

The invention discloses a perfusion type kidney aorta blocking balloon assembly which comprises a balloon, one end of the balloon is communicated with one end of a communicating pipe, an injection pipe is arranged on the inner side of the balloon, the end of the injection pipe extends to the outer side of the balloon, and the ends, away from the balloon, of the injection pipe and the communicating pipe are each provided with a connector. The waterproof piece is slidably arranged outside the communicating pipe in a sleeving mode and comprises a water blocking cover and an adsorption cover, and the water blocking cover and the adsorption cover are arranged outside the communicating pipe in a sleeving mode and can slide along the outer wall of the communicating pipe; the water blocking cover is closer to the balloon than the adsorption cover, and the adsorption piece is used for adsorbing the adsorption cover to the skin surface of a patient. According to the blocking balloon assembly, when a surgical puncture hole for minimally invasive surgery and communicating pipe infusion is exposed, condensed water drops are isolated through the movable waterproof piece, the adsorption cover is tightly attached to the skin through the adsorption piece, the puncture hole is prevented from being polluted by the water drops, and air exposure of a wound is reduced; therefore, the infection probability is reduced and the surgical operation safety is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a perfusable aortic occlusion balloon assembly for kidney. BACKGROUND

[0002] Kidney is an important excretory organ of human body, located on both sides of the spine at the back of the abdominal cavity, shaped like a broad bean and one on each side, its core function covers multiple aspects: through the glomerulus, about 180 liters of blood is filtered every day to remove metabolic waste and excess water to form urine, while accurately regulating electrolytes such as sodium and potassium and acid-base balance to maintain the stability of the internal environment, in addition, it also has endocrine function, not only can secrete erythropoietin to stimulate hematopoiesis, but also can synthesize active vitamin D to regulate calcium and phosphorus metabolism, and participate in blood pressure regulation through the secretion of renin, is a key organ to maintain metabolic balance and internal environment stability of human body.

[0003] In kidney surgery, especially in partial nephrectomy or complex surgery involving cold perfusion of renal artery, in order to create a bloodless surgical field and protect renal function, it is usually necessary to block the renal artery and perform cold perfusion. The commonly used method is to use a perfusable occlusion balloon catheter, which usually includes a balloon, a connecting tube for injecting liquid into the balloon to inflate it to block blood flow, and an injection tube for perfusing low-temperature saline into the renal artery. However, there is a difficult problem to be solved in actual surgical operation: because the perfused low-temperature saline is usually at 0-4 degrees Celsius, there is a significant temperature difference with the operating room environment, which can cause a large amount of water droplets in the air to condense on the outer wall of the connecting tube exposed to the outside. These condensed water droplets accumulate and flow along the pipe wall, and when the pipeline is located above the surgical incision, there is a risk of dripping into the patient's surgical incision, which not only may contaminate the surgical field and increase the risk of postoperative infection, but also may interfere with the surgeon's operation. At the same time, the surgical incision itself is exposed and in direct contact with the air, which also poses a certain risk of contamination. There is a lack of specialized devices for effective management of condensation water in such precise surgery and passive protection of surgical incision in the prior art, therefore, there is an urgent need for an auxiliary assembly that can actively collect condensed water and isolate and protect the surgical incision, integrated on the existing balloon occlusion device, to improve the safety and reliability of the surgery.

[0004] In the existing cold perfusion aortic surgery, the puncture hole caused by the surgery can cause a temperature difference due to the perfusion of low-temperature saline through the connecting tube, and the water droplets condensed on the outer wall due to the temperature difference can flow along the pipe wall and drip into the patient's surgical incision, increasing the risk of infection, and at the same time, the surgical incision is directly exposed to the air, which is also prone to contamination. SUMMARY

[0005] The application provides a perfusable renal aortic blocking balloon assembly, which aims to overcome the problem that water droplets condensed due to temperature difference may flow along the pipe wall and drop to the surgical incision of a patient, increasing the risk of infection.

[0006] The technical scheme for solving the above technical problem is as follows: a perfusable renal aortic blocking balloon assembly, comprising a balloon, one end of the balloon being in communication with one end of a communication pipe, an injection pipe being arranged on the inner side of the balloon, the end of the injection pipe extending to the outer side of the balloon, the injection pipe and the end of the communication pipe away from the balloon being provided with a joint, the assembly further comprising a waterproof member and a suction member, the waterproof member being slidably sleeved on the outer side of the communication pipe, the waterproof member comprising a water blocking cover and a suction cover, the water blocking cover and the suction cover being sleeved on the outer side of the communication pipe and being capable of sliding along the outer wall of the communication pipe, the water blocking cover being closer to the balloon than the suction cover, and the suction member being used for adsorbing the suction cover to the surface of the skin of a patient.

[0007] On the basis of the above technical scheme, the application can be further improved as follows.

[0008] Further, the water blocking cover and the suction cover are both trumpet-shaped and oppositely arranged.

[0009] Further, the water blocking cover and the suction cover are both trumpet-shaped and oppositely arranged.

[0010] Further, the water blocking cover and the suction cover are both trumpet-shaped and oppositely arranged.

[0011] Further, the water blocking cover and the suction cover are both trumpet-shaped and oppositely arranged.

[0012] Further, the water blocking cover and the suction cover are both trumpet-shaped and oppositely arranged.

[0013] Further, the injection tube comprises an A injection tube, the communication tube comprises an A communication tube, the A communication tube is communicated with an A balloon, the A injection tube penetrates through the A balloon and extends to the outside of the A balloon, a needle is fixedly installed on one end of the A injection tube close to the A balloon, the A injection tube is partially arranged on the inside of the A communication tube, a channel is formed between the A injection tube and the A communication tube, the other end of the A injection tube penetrates through the side wall of the A communication tube, the joint comprises a first joint and a second joint, the first joint is fixedly connected with the end of the A communication tube, and the second joint is fixedly connected with the end of the A injection tube.

[0014] Further, the balloon comprises a B balloon and a C balloon, the B balloon is arranged in the aortic blood vessel, a plurality of drainage holes are formed in the B balloon, the plurality of drainage holes allow blood to pass through, the C balloon is arranged in the branch aortic blood vessel and is used for plugging the branch blood vessel, and the C balloon is penetrated by the same injection tube as the B balloon.

[0015] Further, the injection tube comprises a B injection tube, one end of the B injection tube is located outside the aortic blood vessel, the other end of the B injection tube penetrates through the B balloon and the C balloon in sequence and extends into the branch aortic blood vessel, and the B injection tube is used for injecting liquid into the branch aortic blood vessel.

[0016] Further, the communication tube comprises a B communication tube and a C communication tube, the B communication tube is communicated with the inner cavity of the B balloon, and the C communication tube penetrates through the B balloon and is communicated with the inner cavity of the C balloon.

[0017] Compared with the prior art, the beneficial effects of the present application are that the perfusion type blocking balloon assembly for the aorta of the kidney provided by the present application can isolate the condensed water droplets through the movable waterproof member when the surgical puncture hole for the communication tube perfusion is exposed, and the adsorption cover is tightly attached to the skin through the suction member, so that the water droplet pollution of the incision is blocked and the air exposure of the wound is reduced, thereby reducing the infection probability and improving the safety of the operation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The overall structure schematic diagram provided for the first embodiment of the present application is shown in the figure.

[0019] Figure 2 The structure schematic diagram provided for the first embodiment of the present application is shown in the figure.

[0020] Figure 3 The structure schematic diagram provided for the first embodiment of the present application is shown in the figure.

[0021] Figure 4 The structure schematic diagram provided for the first embodiment of the present application is shown in the figure.

[0022] Figure 5 The overall structure schematic diagram provided for the second embodiment of the present application is shown in the figure.

[0023] MARKED DESCRIPTION:

[0024] 1, a balloon; 2, a communication tube; 21, a first joint; 3, a waterproof member; 31, a water blocking cover; 32, an adsorption cover; 33, an outer tube; 34, an inner tube; 35, a vent hole; 36, a reset member; 37, a one-way member; 4, an injection tube; 41, a second joint; 5, a needle; 100, a B balloon; 101, a C balloon; 201, a B communication tube; 202, a C communication tube; 400, a B injection tube. DETAILED DESCRIPTION

[0025] The technical solutions provided by the present application will be described clearly and completely below in conjunction with the drawings and specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0026] In the description of the present application, if terms indicating orientation or position relationship such as "up", "down", "left", "right", "top", "bottom", "inner", "outer" and the like are used, the indicated orientation or position relationship is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0027] Embodiment one:

[0028] As shown in Figures 1 to 4 The present application provides a perfusable blocking balloon assembly for the aorta of the kidney, which comprises a balloon, one end of the balloon is in communication with one end of a communication tube, an injection tube is arranged inside the balloon, the end of the injection tube extends to the outside of the balloon, the injection tube and the communication tube are both provided with a joint at the end away from the balloon, and the blocking balloon assembly further comprises a waterproof member 3 and an adsorption member, the waterproof member 3 is sleeved on the outside of the communication tube in a sliding manner, the waterproof member 3 comprises a water blocking cover 31 and an adsorption cover 32, the water blocking cover 31 and the adsorption cover 32 are both sleeved on the outside of the communication tube and can slide along the outer wall of the communication tube; the water blocking cover 31 is closer to the balloon than the adsorption cover 32, and the adsorption member is used for adsorbing the adsorption cover 32 to the surface of the skin of a patient. The water blocking cover 31 and the adsorption cover 32 are both in the shape of a horn and are arranged back to back.

[0029] The water blocking cover 31 and the fine end opening of the adsorption cover 32 are respectively provided with an inverted ring table, the adsorption cover includes a coaxial outer tube 33 and an inner tube 34, the two ends of the outer tube 33 and the inner tube 34 are respectively fixedly connected with the inverted ring tables of the water blocking cover 31 and the adsorption cover 32, an A cavity is formed between the inner tube 34 and the outer tube 33, the inner tube is tightly attached to the outer side of the communication tube and can slide along the outer side of the communication tube, a plurality of air holes 35 are formed in the inverted ring table and communicated with the A cavity, and a reset member 36 is arranged in the A cavity and abuts against the upper and lower inverted ring tables, respectively, a one-way member 37 is arranged in the air hole 35 of the corresponding inverted ring table of the water blocking cover 31, and the one-way member 37 is used to block the end of the air hole 35 away from the A cavity.

[0030] In other words, the water blocking member 3 in the perfusion type blocking balloon assembly for the renal aorta provided by the application includes: a water blocking cover 31 sleeved on the outer side of the communication tube and capable of sliding along the outer wall of the communication tube; an adsorption cover 32 sleeved on the outer side of the communication tube and capable of sliding along the outer wall of the communication tube, the adsorption cover 32 being capable of being adsorbed on the surface of the skin; and an adsorption member (which can also be called an air suction member when adsorbed through a negative pressure mechanism), which is arranged between the water blocking cover 31 and the adsorption cover 32, the air suction member being capable of compressing and sucking out the air in the adsorption cover 32.

[0031] The injection tube shares the outer wall of the communication tube, when, for example, the abdominal aorta is severely narrowed or occluded, or the opening position of the renal artery is abnormal, so that the conventional catheter cannot pass through the aortic arch or the iliac artery system to reach the renal artery, or the renal tumor ruptures, or the kidney is injured or damaged by medical treatment, and the renal artery needs to be immediately blocked to control bleeding, the conventional approach cannot stop bleeding in time due to time delay or anatomical obstacles, and more accurate blood flow control is required by directly puncturing, the puncture needle is directly inserted into the renal artery, the guide wire is inserted into the guide catheter near the opening of the renal artery, and the catheter with the uninflated balloon is completely sent to the renal artery blood vessel, and this step is performed under the guidance of ultrasound or DSA;

[0032] In this way, the renal artery is punctured in a minimally invasive manner, the end of the communication tube is outside the patient's body, the communication tube is used to inject liquid into the balloon, and the pressure is increased to 8-16 atmospheres, so that the balloon is inflated to actively block the renal aorta, to prevent arterial blood from continuing to enter the kidney, and the injection tube is used to inject 0 to 4 degrees Celsius physiological saline into the inferior vena cava of the renal artery blood vessel to flush away the target blood in the kidney;

[0033] The water blocking cover 31 and the adsorption cover 32 are both made of rubber and have an arc-shaped bowl shape (or a horn shape) with openings facing opposite directions. The adsorption cover 32 can suck out the air in the adsorption cover 32 to form a low pressure, so that the adsorption cover 32 is adsorbed outside the puncture point of the patient's skin. When the cold perfusion of the renal artery is performed, water droplets are generated on the outer wall of the connecting tube due to the temperature difference and adhere to the surface. When the water droplets accumulate to a certain extent, they will flow along the outer wall of the connecting tube, and there is a risk of dropping onto the skin opening of the patient. When the part of the connecting tube located outside the body is above the skin opening, the wide end of the water blocking cover 31 opens towards the side away from the skin opening. The water droplets are collected by the water blocking cover 31. When the part of the connecting tube located outside the body is below the skin opening, the water droplets will not drop onto the skin opening of the patient. The air suction member sucks out the air in the adsorption cover 32, so that the adsorption cover 32 can be adsorbed on the surface of the patient's skin, avoiding direct leakage of the wound and contact with air. The inner side of the adsorption cover 32 is also integrally formed with a separation tube for separating the skin opening from the low pressure area in the adsorption cover 32.

[0034] The inner tube 34 and the outer tube 33 of the air suction member are both soft rubber. The two ends of the inner tube 34 and the outer tube 33 are fixed between the same water blocking cover 31 and adsorption cover 32 by adhesion. The A cavity formed between the inner tube 34 and the outer tube 33 is used to place the reset member 36 and the communication passage as the air vent 35. Pressing the water blocking cover 31 causes the reset member 36 to be compressed, and the air in the A cavity is discharged through the air vent 35. After the water blocking cover 31 is released, the one-way member 37 blocks the opening of the air vent 35 on one side of the water blocking cover 31. The air on the other side of the adsorption cover 32 is sucked into the A cavity, so that a negative pressure is formed between the adsorption cover 32 and the patient's skin, and the waterproof member 3 is attached to the surface of the patient's skin, thereby protecting the patient's opening and blocking water droplets. The reset member 36 includes but is not limited to a spring, which can provide sufficient reset force.

[0035] The plurality of one-way members 37 correspond to the plurality of air vents 35 one by one. The one-way member 37 is fixedly connected to the side of the water blocking cover 31 away from the A cavity through a plurality of adhesion points.

[0036] The one-way member 37 is a rubber sheet. The number of adhesion points between the rubber sheet and the water blocking cover 31 is not less than two. When the A cavity is squeezed, the edge of the one-way member 37 separates from the non-connection point of the water blocking cover 31, and the air flows out from the gap. However, external air cannot enter the A cavity through the one-way member 37. When the adsorption cover 32 is not firmly adsorbed to the skin, it only needs to compress one side of the A cavity to achieve tight adsorption again.

[0037] In one embodiment of the present invention, an absorbent cloth or absorbent cotton ball may be placed inside the water-blocking cover 31. When water droplets on the wall of the connecting tube enter the water-blocking cover, the absorbent cloth or absorbent cotton ball can absorb the water droplets to prevent the liquid inside the water-blocking cover from flowing out when the patient moves; the absorbent cloth or absorbent cotton ball can be replaced.

[0038] In addition to adsorbing the adsorption cover 32 onto the patient's skin via negative pressure, as described above, adsorption can also be achieved through the following adhesive method (in which case the adsorption cover and the water-resistant cover can be set separately and independently): The adsorption cover 32 has an outward-flaring ring around its wide opening. The adsorption component is medical adhesive tape adhered to the outward-flaring ring, and the other side of the medical adhesive tape has release paper. When it is necessary to place the adsorption cover over a minimally invasive incision, simply peel off the release paper to expose the adhesive side of the medical adhesive tape, and then adhere and fix it to the skin around the minimally invasive incision.

[0039] The balloon in the blocking balloon assembly provided by the present invention includes a balloon A1, which is connected to a connecting tube. When balloon A1 is inflated, it can wrap around the end of the injection tube near balloon A1.

[0040] Balloon A1 is a blocking balloon that, when inflated, is sufficient to block the renal aorta, and one end of it extends towards the end of the injection tube after inflation, completely covering the outlet.

[0041] The injection tube includes an injection tube A 4, and the connecting tube includes a connecting tube A 2. The connecting tube A 2 is connected to the balloon A 1. The injection tube A 4 passes through the balloon A 1 and extends to its outer side. A needle 5 is fixedly installed at one end of the injection tube A 4 near the balloon A 1. Part of the injection tube A 4 is located inside the connecting tube A 2, forming a channel between the injection tube A 4 and the connecting tube A 2. The other end of the injection tube A 4 passes through the side wall of the connecting tube A 2. The connectors include a first connector 21 and a second connector 41. The first connector 21 is fixedly connected to the end of the connecting tube A 2, and the second connector 41 is fixedly connected to the end of the injection tube A 4.

[0042] Injection tube 4 is used to inject fluid into the renal artery. A hollow needle 5 is fixedly installed at the outlet end. The needle 5 is used to pierce the renal artery. After balloon 1 expands, it can cover the puncture end of the needle 5. The first connector 21 and the second connector 41 are respectively fixedly installed at the input end of the connecting tube 2 and the input end of injection tube 4. The inner side of the first connector 21 and the second connector 41 are provided with channels for injecting liquid using a syringe.

[0043] First, insert balloon A1 and needle 5 at the tip of injection tube A4 into the target location of the renal artery. Connect the syringe through the first connector 21 and inject liquid into the connecting tube A2 to inflate balloon A1. After inflating, balloon A1 blocks the renal aorta and wraps around the end of needle 5 near balloon A1. Then, connect the syringe through the second connector 41 and inject saline solution at 0 to 4 degrees Celsius into injection tube A4. The saline solution enters the subvascular cavity of the renal artery through needle 5 to flush away the target blood. If the external portion of connecting tube A2 is above the surgical opening during the operation, move the waterproof component 3 so that the opening of the water-resistant cover 31 faces the target location. Collect water droplets condensed on the outer wall of the A connecting tube 2 due to temperature difference, away from the incision side; if the A connecting tube 2 is located below the incision, press the water-blocking cover 31 to compress the reset member 36 so that the air in the A cavity is discharged through the vent 35 on the water-blocking cover 31 and pushes open the one-way member 37. After releasing, the reset member 36 rebounds, creating a negative pressure on the side of the adsorption cover 32. At this time, the adsorption cover 32 draws in air through the vent 35 and adheres tightly to the skin. At the same time, the one-way member 37 closes the vent 35 on the side of the water-blocking cover 31 to maintain the negative pressure, thereby achieving wound isolation and protection; when the adsorption force of the adsorption cover 32 is insufficient, the water-blocking cover 31 can be pressed again to repeat the above air extraction process to enhance adsorption stability.

[0044] Example 2:

[0045] Please see Figure 5 This embodiment provides a technical solution based on embodiment one: the balloon includes balloon B 100 and balloon C 101. Balloon B 100 is placed in the aortic blood vessel and has several drainage holes through it, which allow blood to pass through. Balloon C 101 is placed in the branch artery blood vessel and is used to block the branch blood vessel. Balloon C 101 and balloon B 100 are both penetrated by the same injection tube.

[0046] When renal artery disease prevents catheter guidance or causes massive renal bleeding requiring rapid blood flow occlusion, surgery is necessary to block the renal artery. To address this, this approach uses a balloon to directly occlude the renal artery. Specifically, balloon B100 and balloon C101 block the renal aorta and renal branch arteries, respectively. The drainage port on balloon B100 allows blood to flow slowly within the renal aorta, maintaining blood exchange and preventing hypoxia or damage to other sites or organs during prolonged surgery. Balloon C101 blocks the renal branch vessels at the site of injury. The combined use of balloons B100 and C101 not only blocks arterial blood flow but also maintains blood exchange in other areas, minimizing balloon overinflation and maintaining stability within the vessel, thus reducing vascular damage.

[0047] The injection tube includes a B injection tube 400, one end of which is located outside the aortic vessel, and the other end passes through a B balloon 100 and a C balloon 101 in sequence, extending into the branch artery vessel for injecting liquid into the branch artery vessel.

[0048] The syringe 400 is used to inject 0-4 degree Celsius saline solution into an artery to dilute and completely drain the target blood from the kidney.

[0049] The connecting tubes include a B connecting tube 201 and a C connecting tube 202. The B connecting tube 201 is connected to the inner lumen of the B balloon 100, and the C connecting tube 202 passes through the B balloon 100 and is connected to the inner lumen of the C balloon 101.

[0050] The connecting tube and the injection tube are integrated, sharing the same outer wall in some areas, but separated into independent cavities, which serve as connecting channels for the B injection tube 400, the B connecting tube 201, and the C connecting tube 202, respectively. The B connecting tube 201 is used to inject liquid into the B balloon 100 to expand it and block the flow of the renal aorta. The C connecting tube 202 is used to inject liquid into the C balloon 101 to expand it and completely block the flow of the renal branch aorta.

[0051] First, the assembly integrating the B-connecting tube 201, C-connecting tube 202, and B-injection tube 400 is inserted into the blood vessel, positioning the B-balloon 100 in the renal aorta and the C-balloon 101 in the target branch artery. A medium is injected into the B-balloon 100 through the B-connecting tube 201 to inflate it and block the aortic vessel. At this time, the drainage hole on the B-balloon 100 allows some blood to pass through to maintain oxygen supply to downstream organs. A medium is then injected into the C-balloon 101 through the C-connecting tube 202 to fully inflate it and completely block the target branch artery. Subsequently, 0-4 degree Celsius saline solution is injected into the branch artery through the B-injection tube 400. The low-temperature saline solution flows out through the end of the B-injection tube 400 to flush away blood from the target area. If condensation occurs on the outer wall of the integrated tubing during the procedure, the waterproof component 3 is moved so that the water-blocking cover 31 faces upwards towards the incision to intercept water droplets. Pressing the water-blocking cover 31 drives the suction component, causing the adsorption cover 32 to draw air through the vent 35 to create negative pressure, thereby tightly adhering to the skin surface to achieve wound isolation and protection.

[0052] Example 3:

[0053] This embodiment provides a technical solution based on Embodiment 1 and Embodiment 2: the balloon can also be inserted into the renal vein and the target blood drained from the kidney can be collected through an injection tube.

[0054] First, insert the needle 5 at the tip of balloon A 1 and injection tube A 4 into the target location of the renal artery. Simultaneously, insert another balloon and injection tube assembly with the same structure into the renal vein. Connect the syringe through the first connector 21 and inject the medium into the connecting tube A 2 to inflate balloon A 1, blocking the renal aorta and wrapping the needle 5. Inflate the balloon through the corresponding connecting tube to block the renal vein. Then, inject 0-4 degree Celsius saline into injection tube A 4 through the second connector 41. The low-temperature saline enters the renal artery through the needle 5 to flush the target blood. The replaced blood is passively drawn out or actively aspirated and collected through the injection tube in the center of the balloon at the venous end. If condensation accumulates on the outer wall of connecting tube A 2 during the operation, move the waterproof component 3 so that the opening of the water-blocking cover 31 faces away from the incision to intercept water droplets, or press the water-blocking cover 31 to compress the reset component 36 to drive the air in the cavity A to open the one-way component 37 and discharge it. After releasing, the reset component 36 rebounds, causing the suction cover 32 to draw air through the vent 35 to form a negative pressure to absorb the skin, achieving the dual functions of wound sealing and protection and fluid collection.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A perfusion-type balloon occlusion assembly for the renal aorta, comprising a balloon, one end of which is connected to one end of a connecting tube, an injection tube disposed inside the balloon, the end of the injection tube extending to the outside of the balloon, and connectors disposed at the ends of the injection tube and the connecting tube away from the balloon, characterized in that, Also includes: Waterproof component (3) and adsorption component, wherein the waterproof component (3) is slidably sleeved outside the connecting tube, the waterproof component (3) includes a water-blocking cover (31) and an adsorption cover (32), both the water-blocking cover (31) and the adsorption cover (32) are sleeved outside the connecting tube and can slide along the outer wall of the connecting tube; the water-blocking cover (31) is closer to the balloon than the adsorption cover (32), and the adsorption component is used to adsorb the adsorption cover (32) onto the patient's skin surface.

2. The perfusion-type balloon assembly for occlusion of the renal aorta according to claim 1, characterized in that, Both the water-blocking cover (31) and the adsorption cover (32) are horn-shaped and arranged back to back.

3. The perfusion-type balloon assembly for occlusion of the renal aorta according to claim 2, characterized in that, The water-blocking cover (31) and the adsorption cover (32) are respectively provided with inward turning ring platforms at their narrow end openings. The adsorption component includes an outer tube (33) and an inner tube (34) arranged coaxially. The two ends of the outer tube (33) and the inner tube (34) are respectively fixedly connected to the inward turning ring platforms of the water-blocking cover (31) and the adsorption cover (32). An A cavity is formed between the inner tube (34) and the outer tube (33). The inner side of the inner tube is tightly fitted to the outer side of the connecting tube and can slide along the outer side of the connecting tube. Several ventilation holes (35) communicating with the A cavity are provided on the inward turning ring platform. The A cavity is also provided with reset members (36) that abut against the upper and lower inward turning ring platforms respectively. A one-way member (37) is provided in the ventilation hole (35) of the inward turning ring platform corresponding to the water-blocking cover (31). The one-way member (37) is used to block the end of the ventilation hole (35) away from the A cavity.

4. The perfusion-type balloon assembly for occlusion of the renal aorta according to claim 3, characterized in that, Several of the unidirectional components (37) correspond one-to-one with several vent holes (35), and the unidirectional components (37) are fixedly connected to the side of the water-blocking cover (31) away from cavity A through several adhesive points.

5. The perfusion-type balloon assembly for occlusion of the renal aorta according to claim 2, characterized in that, The water-blocking cover (31) contains an absorbent cloth or absorbent cotton ball; the adsorption cover (32) has an outward-turned ring around the opening at the coarse end, and the adsorption element is a medical tape pasted on the outward-turned ring, with release paper on the other side of the medical tape.

6. The perfusion-type balloon assembly for occlusion of the renal aorta according to claim 1, characterized in that, The balloon includes a balloon A (1), which is connected to a connecting tube. When the balloon A (1) is inflated, it can wrap around the end of the injection tube near the balloon A (1).

7. The perfusion-type balloon assembly for occlusion of the renal aorta according to claim 6, characterized in that, The injection tube includes an A injection tube (4), the connecting tube includes an A connecting tube (2), the A connecting tube (2) is connected to an A balloon (1), the A injection tube (4) passes through the A balloon (1) and extends to its outer side, a needle (5) is fixedly installed at one end of the A injection tube (4) near the A balloon (1), part of the A injection tube (4) is located inside the A connecting tube (2), a channel is formed between the A injection tube (4) and the A connecting tube (2), the other end of the A injection tube (4) passes through the side wall of the A connecting tube (2), the connector includes a first connector (21) and a second connector (41), the first connector (21) is fixedly connected to the end of the A connecting tube (2), and the second connector (41) is fixedly connected to the end of the A injection tube (4).

8. The perfusion-type balloon assembly for occlusion of the renal aorta according to claim 1, characterized in that, The balloon includes a B balloon (100) and a C balloon (101). The B balloon (100) is placed inside the aorta and has several drainage holes that allow blood to pass through. The C balloon (101) is placed inside a branch artery and is used to block the branch artery. Both the C balloon (101) and the B balloon (100) are penetrated by the same injection tube.

9. A perfusion-type balloon occlusion assembly for the renal aorta according to claim 8, characterized in that, The injection tube includes a B injection tube (400), one end of which is located outside the aortic vessel, and the other end passes through a B balloon (100) and a C balloon (101) in sequence, extending into the branch artery vessel for injecting liquid into the branch artery vessel.

10. A perfusion-type occlusion balloon assembly for the renal aorta according to claim 9, characterized in that, The connecting tubes include a B connecting tube (201) and a C connecting tube (202). The B connecting tube (201) is connected to the inner cavity of the B balloon (100), and the C connecting tube (202) passes through the B balloon (100) and is connected to the inner cavity of the C balloon (101).

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