Manual pneumatic auxiliary urination system

Abstract

The invention belongs to the field of medical equipment. The artificial pneumatic auxiliary urination system comprises a bladder wrapping piece, and the bladder wrapping piece comprises a curved surface front shell and a curved surface rear shell; the end face of the curved-surface front shell and the end face of the curved-surface rear shell are in butt joint connection. A ureter wrapping shell is arranged on the curved-surface rear shell, a ureter outer hole and a ureter inner hole are formed in the ureter wrapping shell, and a ureter penetrates through the ureter outer hole and the ureter inner hole to enter the curved-surface rear shell; a bladder neck hole; an inner layer is arranged on the inner side of the curved surface front shell, is made of a flexible telescopic material and is connected with the inner side of the curved surface front shell close to the edge, a sealed cavity is formed between the inner layer and the curved surface front shell, the curved surface front shell is provided with a communicating piece, the sealed cavity is filled with a medium, the pressure intensity is increased, and the inner layer is extruded; the bladder wrapping piece is of a module assembly type, a hole and a groove are reserved in a wrapping shell, blood supply of the bladder and smoothness of a ureter and a neck opening of the bladder are guaranteed while the bladder is tightly wrapped, urine can be emptied easily, and bladder hernia is prevented from being formed.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to an artificial pneumatic assisted urination system. Background Art

[0002] After urine is produced by the kidneys, it flows down along the ureters and is stored in the bladder. When the urine in the bladder reaches a certain amount, the bladder contracts through nerve reflexes to discharge urine through the urethra. Damage to urination-related nerves and poor long-term blood sugar control in diabetes can lead to neurogenic bladder. Simply put, the so-called neurogenic bladder is a bladder that cannot store and urinate urine normally. For example, in the late stage of neurogenic bladder caused by diabetes, the patient has no urination consciousness and the bladder does not contract, resulting in excessive bladder expansion and urine retention, which further leads to infection, ureteral urine obstruction and reflux, further leading to renal damage, and causing serious impact on the patient's health. With the advent of aging, the number of diabetic patients has increased rapidly, and the number of patients with neurogenic bladder has also increased rapidly. At present, the treatment of diabetic-related neurogenic bladder in clinical practice is only a helpless method (clean catheterization and cystostomy). Clean catheterization requires high quality of patients and requires several catheterizations a day, which is more painful for patients. With cystostomy, patients need to have a urinary catheter inserted in their abdomen and a urine bag hung for life. Because the fistula opening is directly connected to the inside of the bladder, urine leakage and bladder infection are almost inevitable, and the patient's quality of life is very poor.

[0003] In addition, the standard treatment for mid-to-late stage bladder cancer is to remove the bladder. In order to maintain the patient's quality of life, a section of intestine can be cut off to make a urine reservoir and anastomosed to the ureter and urethra to replace the original bladder. However, the intestine does not contract to urinate like the bladder. In other words, the intestinal neobladder is also similar to an artificial neurogenic bladder. After the operation, the patient still faces the problem of difficulty urinating.

[0004] Based on the above problems, many domestic scholars are committed to developing auxiliary bladder urination devices. Ideally, this device should meet the following basic requirements: 1. Biological non-toxicity; 2. Empty urine as much as possible; 3. Bladder urine cannot flow back into the ureter during urination; 4. Avoid causing serious damage to the bladder, mainly including damage, poor blood supply, and bladder hernia; 5. The function of the device should be long-term and stable. The relevant devices currently disclosed have different degrees of gaps with these requirements, and there has been no major breakthrough in the treatment of neurogenic bladder. Summary of the invention

[0005] In view of the deficiencies of the prior art, the purpose of the present invention is to provide an artificial pneumatic assisted urination system, which can tightly wrap the bladder while ensuring the blood supply to the bladder and the patency of the ureter and bladder neck, further facilitating the emptying of urine, and at least solving one of the problems of the background technology.

[0006] The present invention provides the following technical solutions: An artificial pneumatic assisted urination system comprises a bladder wrapping piece, wherein the bladder wrapping piece comprises a curved front shell and a curved rear shell; The end surface of the curved front shell and the end surface of the curved rear shell are joined and connected; A ureteral covering shell is arranged on the curved rear shell, and the ureteral covering shell is provided with a ureteral outer hole and a ureteral inner hole, and the ureter passes through the ureteral outer hole and the ureteral inner hole to enter the interior of the curved rear shell; Bladder neck opening; An inner layer is provided on the inner side of the curved front shell. The inner layer is made of flexible and stretchable material. The inner layer is connected to the inner side of the curved front shell near the edge. A sealed cavity is formed between the inner layer and the curved front shell. A connecting piece is provided on the curved front shell. When the sealed cavity is filled with a medium, the pressure increases and the inner layer is squeezed.

[0007] Preferably, the medium in the sealed cavity is air; the connecting piece on the curved front shell is an air hole or an air nozzle, and the connecting piece connects the air supply component and the sealed cavity.

[0008] Preferably, the curved rear shell is an integral structure or a split structure; the split structure includes two symmetrically arranged curved surfaces, and the two curved surfaces are assembled into a curved rear shell; two ureteral wrapping shells are symmetrically arranged on the curved rear shell, and a protrusion is provided on the side of the ureteral wrapping shell close to the curved rear shell, and an anti-reflux airbag is provided on the side of the ureteral wrapping shell away from the curved rear shell, the protrusion and the anti-reflux airbag are arranged correspondingly, and the anti-reflux airbag and the protrusion cooperate to squeeze the ureter.

[0009] Preferably, the bladder neck hole is arranged on the curved posterior shell or at the adjacent position of the curved anterior shell and the curved posterior shell, and the bladder neck hole is enclosed by the arc-shaped defect of the curved posterior shell, or is enclosed by the arc-shaped defect of the curved posterior shell and the arc-shaped defect of the curved anterior shell.

[0010] Preferably, the ureteral wrapping shell includes a fixed module and a movable module, the movable module is rotatably connected to the fixed module on one side and mated with the other side; the fixed module is connected to the curved rear shell, the inner hole of the ureter is arranged on the curved rear shell, and the outer hole of the ureter is arranged on the fixed module or on the movable module or at an adjacent position between the fixed module and the movable module; when the outer hole of the ureter is located at an adjacent position between the fixed module and the movable module, it is enclosed by an arc-shaped defect on the fixed module and an arc-shaped defect on the movable module; the inner hole of the ureter is arranged above the bladder neck hole, and a first vascular groove is provided between the inner hole of the ureter and the bladder neck hole, and the first vascular groove is a through groove.

[0011] Preferably, the inner layer is made of a single or multi-layer flexible material, and the inner layer covers the front middle part of the bladder. The sealed cavity between the inner layer and the curved outer shell can change in volume as the gas enters and exits the air supply component, squeezing the inner layer to promote urination in the bladder.

[0012] Preferably, the end surface of the curved front shell is provided with a plurality of slots, and the end surface of the curved rear shell is provided with a plurality of plug-in blocks, which are plugged into the slots accordingly, and the outer side walls adjacent to the curved front shell and the curved rear shell are provided with fixing protrusions, which can be tightened by cable ties.

[0013] Preferably, a plurality of second vascular grooves are provided at the adjacent ends of the curved front shell and the curved back shell, and the second vascular grooves are provided in the curved front shell or the curved back shell, or are formed by enclosing the defect of the curved front shell and the defect of the curved back shell.

[0014] Preferably, the curved rear shell is provided with a plurality of fixing holes, the fixing holes are penetrated with sutures, and the bladder is fixed to the inner side of the curved rear shell by the sutures; during the operation, the bladder is sutured and fixed to the inner layer of the curved rear shell by the fixing holes; a fixing block is provided on the curved front shell, the fixing block is provided with a through hole, a strap or a hook is provided in the through hole, and the bladder package is fixed to the human pelvis by the strap or the hook; the strap and the hook are made of titanium alloy or zirconium oxide ceramics.

[0015] Preferably, the air supply assembly includes an inflation mechanism and an air guiding mechanism, the inflation mechanism includes an inflation bag, knobs are provided at both ends of the inflation bag, filters are connected to the two ends of the inflation bag through the knobs, a one-way valve is built into the inflation bag, and the inflation bag supplies air to the air guiding mechanism in a one-way manner; an air outlet end of the inflation bag is connected to an trachea, the trachea is connected to the air guiding mechanism, a filter is provided at one end of the trachea close to the inflation bag, a knob is provided on one side of the filter, and the filter is connected to the air outlet end of the inflation bag through the knob; the air guiding mechanism includes a main pipe, the main pipe is connected to the filter of the inflation bag through the knob, the main pipe is connected to three catheters, one of which is connected to the connecting piece, and the other two catheters are respectively connected to the anti-reflux air bags in the two ureteral sheathing shells. When the air supply assembly is in use, the inflation mechanism and the air guide mechanism are separate structures, which are rotatably connected by a knob and a thread; the trachea end of the air guide mechanism is exposed to the outside of the body, and is provided with a filter, which can filter bacteria and viruses in the air to prevent infection. When urination is needed, the inflation bag is connected to the trachea, the bag is squeezed, and the volume of the sealed cavity is increased to squeeze the inner layer and the bladder to achieve urination; the filter membrane material of the filter is one or more of polyethersulfone PES, nylon, and polytetrafluoroethylene, and the pore size of the filter membrane is 0.22μm-0.45μm, which can filter bacteria and viruses in the air, and can prevent bacteria and viruses in the gas from entering the bladder to cause infection, and is safer.

[0016] Preferably, the slot provided on the end surface of the curved front shell and the insert block provided on the end surface of the curved rear shell form a mortise and tenon structure.

[0017] Preferably, the movable module and the fixed module of the ureteral wrapping shell are provided with a hinge on one side, and are rotatably connected by the hinge, and the other side is engaged and fixed by a fixed convex binding tie.

[0018] Preferably, a connecting hole is provided on the movable module, and a catheter is passed through the connecting hole and connected to the anti-reflux airbag to supply air to the anti-reflux airbag. When the airbag is squeezed and inflated to induce urination from the bladder, the pressure in the anti-reflux airbag increases, and the anti-reflux airbag and the protrusion cooperate to squeeze the ureter to prevent urine in the bladder from flowing back along the ureter to the kidney and causing kidney damage.

[0019] Preferably, the curved rear shell adopts an integrated structure or a split structure, the split structure is composed of two curved surfaces, and the split structure is easier to install. The blood vessel groove arranged between the bladder diameter hole and the ureter inner hole is used to place the blood vessels connected to the bladder.

[0020] Preferably, when using an intestinal neobladder, since the vascular structure of the intestinal neobladder is different from that of the original bladder, it should be understood that the blood vessels of the intestinal neobladder have an annular structure along the circumference of the intestinal neobladder. Therefore, for the intestinal neobladder, a plurality of second vascular grooves are provided at the adjacent ends of the curved front shell and the curved rear shell, and blood vessels are placed along the circumference through the plurality of second vascular grooves to supply blood to the intestinal neobladder.

[0021] Preferably, a fixing plate is provided on the catheter, and the fixing plate can be sutured subcutaneously by sutures to fix the catheter.

[0022] Preferably, a positive electrode sheet and a negative electrode sheet are provided near the air hole on the inner wall of the curved front shell, and the positive electrode sheet and the negative electrode sheet are arranged close to the inner wall of the curved front shell, and the positive electrode sheet and the negative electrode sheet are formed by overlapping crimping, and the positive electrode sheet and the negative electrode sheet are elastic and made of titanium alloy. When there is little urine in the bladder, the positive electrode sheet and the negative electrode sheet do not contact each other. When the bladder is full, the positive electrode sheet and the negative electrode sheet are squeezed by the inner layer, and the two contact to form a conductive path. The positive electrode sheet and the negative electrode sheet are both connected with a wire, and the wire extends to the outside of the body with the catheter. The positive electrode sheet and the negative electrode sheet can be connected with a buzzer or a flashing light through the wire, and the positive electrode sheet is connected to the negative pole of the power supply. When the urine in the bladder is gradually filled, the inner layer of the curved front shell contacts the outer shell, the positive electrode sheet and the negative electrode sheet are connected, and the external buzzer buzzes or the flashing light flashes, reminding the patient to assist urination.

[0023] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides an artificial pneumatic assisted urination system, wherein the bladder wrapping piece is modularly assembled, and holes and grooves are left on the wrapping shell. While tightly wrapping the bladder, the blood supply to the bladder and the patency of the ureter and the bladder neck can be ensured, which is further conducive to emptying urine without causing the formation of bladder hernia (bladder diverticulum).

[0024] A pneumatic system is used to provide power for urination, and there is no need to install a water bag or pump in the body, which can reduce the discomfort and complications caused by the water bag to the patient. The pneumatic system has a simple structure and is less prone to failure than a power system with a pump. The pneumatic system is equipped with multi-stage filters to ensure that the gas entering the urination air cavity and the anti-reflux air bag is sterile to avoid infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 It is a top view of the structure of the present invention.

[0028] Figure 3 It is a bottom view of the structure of the present invention.

[0029] Figure 4 The bladder package structure of the present invention is schematically shown in FIG. Figure 1 .

[0030] Figure 5 It is a schematic diagram of the split structure of the bladder package of the present invention.

[0031] Figure 6 The bladder package structure of the present invention is schematically shown in FIG. Figure 2 .

[0032] Figure 7 It is a schematic diagram of the cross-sectional structure of the bladder package of the present invention.

[0033] Figure 8 1 is a front view of a bladder package according to the present invention.

[0034] Fig. 9 It is a schematic diagram of the single-leaf curved rear shell structure of the present invention. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention. Example

[0037] refer to Figure 1-8 , an artificial pneumatic assisted urination system, including a bladder wrapping member, the bladder wrapping member includes a curved front shell 1 and a curved rear shell 2; the end surface of the curved front shell 1 and the end surface of the curved rear shell 2 are matched and connected; a ureter wrapping shell 3 is provided on the curved rear shell 2, and the ureter wrapping shell 3 is provided with a ureteral outer hole 18 and a ureteral inner hole 7, and the ureter passes through the ureteral outer hole 18 and the ureteral inner hole 7 to enter the interior of the curved rear shell 2; a bladder neck hole; an inner layer 17 is provided on the inner side of the curved front shell 1, and the inner layer 17 is made of a flexible and stretchable material. The inner layer 17 is connected to the inner side of the curved front shell 1 near the edge, and a sealed cavity 27 is formed between the inner layer 17 and the curved front shell 1, and the curved front shell 1 is provided with a connecting piece 21. The sealed cavity 27 is filled with a medium, and the pressure increases to squeeze the inner layer 17. The inner layer is a double-layer structure. The layer close to the curved rear shell is made of polyurethane material, which has good elasticity, strong toughness and good airtightness. The layer close to the bladder is made of PDMS material, which is non-toxic and has no side effects. The curved front shell and the curved rear shell are made of titanium alloy or PETISO.

[0038] The medium in the sealed cavity 27 is air; the connecting piece 21 on the curved front shell 1 is an air hole or an air nozzle, and the connecting piece 21 connects the air supply component and the sealed cavity 27.

[0039] The curved rear shell 2 is an integral structure or a split structure; the split structure includes two symmetrically arranged curved surfaces, and the two curved surfaces are assembled into the curved rear shell 2; two ureteral wrapping shells 3 are symmetrically arranged on the curved rear shell 2, and a protrusion 13 is arranged on the side of the ureteral wrapping shell 3 close to the curved rear shell 2, and an anti-reflux airbag 6 is arranged on the side of the ureteral wrapping shell 3 away from the curved rear shell 2, and the anti-reflux airbag 6 is connected to a catheter 22, and the protrusion 13 is arranged corresponding to the anti-reflux airbag, and the anti-reflux airbag and the protrusion 13 cooperate to squeeze the ureter.

[0040] The bladder neck hole is arranged on the curved posterior shell 2 or at the adjacent position of the curved anterior shell 1 and the curved posterior shell 2. The bladder neck hole is enclosed by the arc-shaped defect of the curved posterior shell 2, or is enclosed by the arc-shaped defect of the curved posterior shell 2 and the arc-shaped defect of the curved anterior shell 1.

[0041] The ureteral wrapping shell 3 includes a fixed module 4 and a movable module 5, wherein the movable module 5 is rotatably connected to the fixed module 4 on one side and matched on the other side; the fixed module 4 is connected to the curved rear shell 2, the ureteral inner hole 7 is arranged on the curved rear shell 2, and the ureteral outer hole 18 is arranged on the fixed module 4 or on the movable module 5 or at the adjacent position of the fixed module 4 and the movable module 5; when the ureteral outer hole 18 is located at the adjacent position of the fixed module 4 and the movable module 5, it is formed by the arc-shaped defect on the fixed module 4 and the arc-shaped defect on the movable module 5; the ureteral inner hole 7 is arranged above the bladder neck hole, and a first blood vessel groove 9 is arranged between the ureteral inner hole 7 and the bladder neck hole, and the first blood vessel groove 9 is a through groove. During the installation process, when the curved front shell and the curved rear shell are matched, the ureter, bladder neck and blood vessels can be placed in the corresponding ureteral outer hole, bladder neck hole and first blood vessel groove respectively, and then the matching is completed, and the posterior lower wall of the bladder part is sutured and fixed to the curved rear shell through the fixed hole. This bladder wrapping device completely wraps the bladder while ensuring the patency of the bladder blood vessels, ureters and bladder neck, so as to facilitate the emptying of urine as much as possible and avoid the formation of bladder hernia.

[0042] The inner layer 17 is made of a single or multi-layer flexible material, and the inner layer 17 covers the front middle part of the bladder. The sealed cavity 27 between the inner layer 17 and the curved outer shell can change in volume as the gas of the air supply assembly enters and exits, squeezing the inner layer 17 to push the bladder to urinate. The end surface of the curved front shell 1 is provided with a plurality of slots 16, and the end surface of the curved rear shell 2 is provided with a plurality of plug blocks 15, and the plug blocks 15 are correspondingly plugged into the slots 16. The outer side walls of the curved front shell 1 and the curved rear shell 2 are both provided with fixing protrusions 14, and the fixing protrusions 14 can be fastened by a cable tie.

[0043] A plurality of second vascular grooves 12 are provided at the adjacent ends of the curved front shell 1 and the curved rear shell 2. The second vascular grooves 12 are provided in the curved front shell 1 or the curved rear shell 2, or are formed by the defects of the curved front shell 1 and the curved rear shell 2. The curved rear shell 2 is provided with a plurality of fixing holes 10, and sutures are passed through the fixing holes 10, and the bladder is fixed to the inner side of the curved rear shell 2 by the sutures; a fixing block 11 is provided on the curved front shell 1, and the fixing block 11 is provided with a through hole, and a cable tie or hook is provided in the through hole, and the bladder package is fixed to the human pelvis by the cable tie or hook. A hook is provided on the fixing block on the front and outer side of the outer layer of the curved front shell, and the bladder package system can be fixed to the pelvis by the hook to prevent the bladder package from shifting and compressing important pelvic organs and tissues.

[0044] The air supply assembly includes an inflation mechanism and an air guiding mechanism. The inflation mechanism includes an inflation bag. Knobs are provided at both ends of the inflation bag. Both ends of the inflation bag are connected to filters through the knobs. A one-way valve is built into the inflation bag, and the inflation bag supplies air to the air guiding mechanism in a one-way manner. An air outlet end of the inflation bag is connected to an trachea, which is connected to the air guiding mechanism. A filter is provided at one end of the trachea close to the inflation bag. A knob is provided on one side of the filter, which is connected to the air outlet end of the inflation bag through the knob. The air guiding mechanism includes a main pipe, which is connected to the filter of the inflation bag through the knob. The main pipe is connected to three catheters, one of which is connected to the connecting piece, and the other two catheters are respectively connected to the anti-reflux air bags in the two ureteral sheaths. When the air supply assembly is in use, the air pumping mechanism and the air guide mechanism are separate structures, which are connected by a knob and a threaded rotation; the tracheal end of the air guide mechanism is exposed outside the body, and is provided with a filter, which can filter bacteria and viruses in the air to prevent infection. When urination is needed, the air pumping bag is connected to the trachea, the air bag is squeezed, and the volume of the sealed cavity is increased to squeeze the inner layer and the bladder to achieve urination; the filter membrane material of the filter is one or more of polyethersulfone PES, nylon material, and polytetrafluoroethylene, and the filter membrane pore size is 0.22μm-0.45μm, which can filter bacteria and viruses in the air, and can prevent bacteria and viruses in the gas from entering the bladder to cause infection, and has better safety. The slot 16 set on the end face of the curved front shell 1 and the plug 15 set on the end face of the curved rear shell 2 form a mortise and tenon structure.

[0045] The movable module 5 of the ureteral wrapping shell 3 is provided with a hinge 20 on one side and the fixed module 4 on the other side, which is rotatably connected by the hinge 20, and the other side is matched and fixed by a tie tie through the fixed protrusion 14. The movable module 5 is provided with a connection hole 19, and the catheter 22 passes through the connection hole 19 and is connected to the anti-reflux airbag 6 to supply air to the anti-reflux airbag 6. When the airbag 24 is squeezed to promote urination of the bladder, the pressure in the anti-reflux airbag 6 increases, and the anti-reflux airbag 6 cooperates with the protrusion 13 to squeeze the ureter to prevent the urine in the bladder from flowing back to the kidney along the ureter and causing kidney damage.

[0046] The split structure is composed of two arc-shaped surfaces, and the split structure is easier to install. The blood vessel groove arranged between the bladder diameter hole 8 and the ureter inner hole 7 is used to place the blood vessels connected to the bladder.

[0047] In one embodiment, a fixing plate 26 is provided on the catheter 22 , and the fixing plate can be sutured under the skin to fix the catheter 22 .

[0048] In one embodiment, Fig. 9 As shown, the curved rear shell 2 adopts an integrated structure, and the curved rear shell is a single leaf, which can be selected according to the patient's pelvis, bladder morphology, vascular plexus distribution and intestinal neobladder surgery method.

[0049] In one embodiment, the inflating bag is an elastic balloon with one-way valves at both ends to control the direction of gas inflow and outflow. The inflating bag is connected to filters at both ends through knobs, and the filters can be removed and replaced. The catheter is emitted from different air holes and then gathered into a catheter, which is bent at the outer end and connected to the knob. The knob is connected to the filter, and the filter can be removed and replaced. There is a fixed disk near the outer end of the catheter, and this fixed disk can be sewn under the skin to fix the catheter. When urination is needed, the patient can connect the inflating device to the catheter system as needed, inflate, increase the pressure of the sealed cavity, squeeze the inner layer to achieve urination, and at the same time, the anti-reflux balloon expands and compresses the ureter to prevent urine ureteral reflux. After urination, remove the inflating device, and the gas can be freely discharged from the urination air cavity and the anti-reflux balloon. The bladder re-receives urine from the ureter to store urine. This pneumatic system has multiple levels of filters to ensure the sterility of the gas entering the body. The filters can be removed and replaced regularly to ensure the long-term stability of the device's functions. In addition, this pneumatic device does not require batteries and pumps to provide power and is reliable in the long term.

[0050] Urine storage period: as urine enters the bladder from the ureter, the volume of the bladder increases with the increase of urine. Since the sealed cavity of the catheter is connected to the outside of the body through the catheter and the filter, the bladder can push the inner layer to move, the gas in the sealed cavity is discharged, the volume of the sealed cavity is reduced, and the position of the inner layer is restored. When the volume of the bladder increases to a certain extent, since the positive electrode and the negative electrode are provided near the pores on the inner wall of the curved front shell, the positive electrode and the negative electrode are arranged close to the inner wall of the curved front shell, and the positive electrode and the negative electrode are formed by overlapping and crimping. The positive electrode and the negative electrode are elastic and are made of titanium alloy. When there is little urine in the bladder, the positive electrode and the negative electrode do not contact each other. When the bladder is full, the positive electrode and the negative electrode are squeezed by the inner layer, and the two contact to form a conductive path. The positive electrode and the negative electrode are both connected with wires, and the wires extend to the outside of the body with the catheter. The positive electrode and the negative electrode can be connected to a buzzer or a flashing light through the wires, and the positive electrode is connected to the power supply. The negative electrode is connected to the negative pole of the power supply. When the urine in the bladder is gradually filled, the inner layer of the curved front shell contacts the outer shell, the positive electrode is connected to the negative electrode, and the external buzzer sounds or the flashing light flashes to remind the patient to assist urination.

[0051] It should be understood that in another embodiment, a conductive sheet is disposed on the outer wall of the inner layer, and the positive electrode sheet and the negative electrode sheet can be connected to form a passage through the conductive sheet of the inner layer.

[0052] Urinary period: After connecting the inflation device and the outer opening of the catheter, the inflation bag of the inflation device is squeezed. Since there are one-way valves at both ends of the inflation bag, the gas is pressed into the catheter system and filtered through multi-stage filters. The air entering the catheter system is sterile. The gas further enters the urination air cavity and the anti-reflux air bag, compressing the bladder and ureter to achieve autonomous urination. While urinating, it can prevent urine from refluxing into the ureter. After urination, the inflation device and the catheter system are separated, and the air in the anti-reflux air bag flows out of the catheter system. The compression of the ureter is released, and the urine can flow from the ureter into the bladder and enter the urine storage period again, and the cycle continues.

[0053] In one embodiment, the specific shape of the bladder wrap can be adjusted according to the patient's pelvis, bladder morphology, vascular plexus distribution, and enteral neobladder procedure. The product can be manufactured by casting or 3D printing, and the places that come into contact with human tissue are made of bio-inert materials.

[0054] This device needs to be installed surgically. For neurogenic bladder, the patient's pelvis, bladder morphology, and vascular plexus distribution need to be evaluated by imaging techniques such as CT and MRI before surgery, and the size, shape, opening and slot positions of the wrapping device need to be adjusted. The wrapping device is 3D printed or cast. During the operation, two single J tubes are first placed into the ureter through a ureteroscope to drain kidney urine. At the same time, an auxiliary installation balloon is inserted into the bladder through the urethra, which has been used to fill the bladder later. Then, an extraperitoneal approach is used to peel off the top wall of the bladder from the peritoneum, separate the anterior wall of the bladder from the abdominal wall or pelvis, and free the proximal bladder segment of the ureter. For male patients, the free seminal vesicle needs to be ligated, the bladder neck is completely retained, and the lateral ligaments of the bladder are appropriately freed. To install the bladder wrapping device, first place the ureter, bladder neck, and vascular plexus in the corresponding ureteral orifice, ureteral orifice, bladder neck orifice, and first vascular groove, and then complete the apposition. Inflate the auxiliary balloon in the bladder to fill the bladder, push the bladder toward the curved posterior shell, make the posterior wall of the bladder fit with the curved posterior shell, suture and fix the posterior lower wall of the bladder part to the curved posterior shell through the fixing hole, put the ureter into the ureteral wrapping shell, pass it upward through the external hole of the ureter, close the ureteral wrapping system, and the fixing convex can be connected by a buckle or by winding silk thread. Comb the catheter, pass the catheter through the tunnel from the subcutaneous, and suture the fixing disk on the catheter to the subcutaneous to fix the catheter. 7-10 days after the operation, remove the bladder balloon and single J tube, connect the inflation device to the external port of the catheter system, repeatedly squeeze the inflation balloon to urinate, and when urination is finished, separate the inflation device and the catheter system to enter the urine storage period. Only by repeating this cycle can autonomous urination be achieved.

[0055] For intestinal neobladder, the size, shape, position of openings and grooves of the wrapping device are adjusted according to different intestinal neobladder surgical procedures, and the wrapping device is 3D printed or cast. Because the blood supply of the intestinal neobladder comes from the mesentery, the mesenteric structure is complex, and the blood vessels are distributed irregularly, the vascular grooves at the junction of the wrapping grooves can be long, round, and other different shapes, and the size is not fixed. In addition, some intestinal neobladder surgical procedures merge and anastomose the ureters on both sides before implanting them into the new bladder. At this time, only one ureteral wrapping shell is retained in the wrapping system. The bladder is removed, a single J ureteral tube is placed, and an intestinal neobladder is made. After the intestinal neobladder is anastomosed with the ureter and urethra, the bladder wrapping device is installed. First, the ureter, urethral anastomosis and vascular plexus are placed in the corresponding ureteral external hole, ureteral internal hole, bladder neck hole and second vascular groove, and then the insemination is completed. The posterior lower wall of the intestinal neobladder part is sutured and fixed to the single-layer shell through the fixing hole. The ureter is placed in the ureteral wrapping shell and passed upward from the ureteral external hole to close the ureteral wrapping system. The fixing convex is connected by a buckle belt, and can also be connected by winding silk thread. A hook is provided on the outer side of the multi-layer curved front shell, and the bladder wrapping system is fixed to the pelvis through the hook to prevent the wrapping shell from ectopically compressing important pelvic organs and tissues. The catheter is combed and passed through the tunnel from the subcutaneous part. The fixing disc on the catheter is sutured subcutaneously to fix the catheter. 7-14 days after the operation, the single J tube is removed, the inflation device is connected to the external port of the catheter system, the inflation bag is squeezed repeatedly to urinate, and when urination is finished, the inflation device and the catheter system are separated to enter the urine storage period. This cycle is repeated to achieve autonomous urination.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An artificial pneumatic assisted urination system, characterized in that: The bladder wrapping member comprises a curved front shell (1) and a curved rear shell (2); The end surface of the curved front shell (1) and the end surface of the curved rear shell (2) are joined and connected; A ureteral covering shell (3) is provided on the curved rear shell (2), and the ureteral covering shell (3) is provided with a ureteral outer hole (18) and a ureteral inner hole (7), and the ureter passes through the ureteral outer hole (18) and the ureteral inner hole (7) to enter the interior of the curved rear shell (2); Bladder neck opening; An inner layer (17) is provided on the inner side of the curved front shell (1), the inner layer (17) is made of a flexible and stretchable material, the inner layer (17) is connected to the inner side of the curved front shell (1) near the edge, a sealed cavity (27) is formed between the inner layer (17) and the curved front shell (1), and a connecting piece (21) is provided on the curved front shell (1). When a medium is filled into the sealed cavity (27), the pressure increases, thereby squeezing the inner layer (17).

2. The artificial pneumatic assisted urination system according to claim 1, characterized in that: The medium in the sealed cavity (27) is gas; the connecting piece (21) on the curved front shell (1) is an air hole or an air nozzle, and the connecting piece (21) connects the air supply component and the sealed cavity (27).

3. The artificial pneumatic assisted urination system according to claim 1, characterized in that: The curved rear shell (2) is an integral structure or a split structure; the split structure comprises two symmetrically arranged curved surfaces, which are assembled into the curved rear shell (2); two ureter wrapping shells (3) are symmetrically arranged on the curved rear shell (2); a bulge (13) is arranged on the side of the ureter wrapping shell (3) close to the curved rear shell (2); an anti-reflux airbag (6) is arranged on the side of the ureter wrapping shell (3) away from the curved rear shell (2); the anti-reflux airbag (6) is connected to a catheter (22); the bulge (13) and the anti-reflux airbag are arranged correspondingly; the anti-reflux airbag and the bulge (13) cooperate to squeeze the ureter.

4. The artificial pneumatic assisted urination system according to claim 1, characterized in that: The bladder neck hole is arranged on the curved posterior shell (2) or at a position adjacent to the curved anterior shell (1) and the curved posterior shell (2); the bladder neck hole is formed by enclosing an arc-shaped defect of the curved posterior shell (2) or by enclosing an arc-shaped defect of the curved posterior shell (2) and an arc-shaped defect of the curved anterior shell (1).

5. An artificial pneumatic assisted urination system according to any one of claims 1 to 3, characterized in that: The ureteral wrapping shell (3) comprises a fixed module (4) and a movable module (5), wherein the movable module (5) is rotatably connected to the fixed module (4) on one side and is mated with the other side; the fixed module (4) is connected to the curved rear shell (2), the ureteral inner hole (7) is arranged on the curved rear shell (2), and the ureteral outer hole (18) is arranged on the fixed module (4) or on the movable module (5) or at a position adjacent to the fixed module (4) and the movable module (5); when the ureteral outer hole (18) is located at a position adjacent to the fixed module (4) and the movable module (5), it is formed by the arc-shaped defect on the fixed module (4) and the arc-shaped defect on the movable module (5); the ureteral inner hole (7) is arranged above the bladder neck hole, and a first blood vessel groove (9) is arranged between the ureteral inner hole (7) and the bladder neck hole, and the first blood vessel groove (9) is a through groove.

6. The artificial pneumatic assisted urination system according to claim 1, characterized in that: The inner layer (17) is made of a single-layer or multi-layer flexible material. The inner layer (17) covers the front middle part of the bladder. The sealed cavity (27) between the inner layer (17) and the curved outer shell can change in volume as gas from the air supply component enters and exits, squeezing the inner layer (17) to promote urination from the bladder.

7. The artificial pneumatic assisted urination system according to claim 1, characterized in that: The end surface of the curved front shell (1) is provided with a plurality of slots (16), and the end surface of the curved rear shell (2) is provided with a plurality of plug blocks (15). The plug blocks (15) are plugged into the slots (16) correspondingly. The outer side walls of the curved front shell (1) and the curved rear shell (2) that are close to each other are provided with fixing protrusions (14), and the fixing protrusions (14) can be fastened by a cable tie.

8. The artificial pneumatic assisted urination system according to claim 1, characterized in that: A plurality of second vascular grooves (12) are provided at the adjacent ends of the curved front shell (1) and the curved rear shell (2); the second vascular grooves (12) are provided on the curved front shell (1) or the curved rear shell (2), or are formed by enclosing defects of the curved front shell (1) and defects of the curved rear shell (2).

9. The artificial pneumatic assisted urination system according to claim 1, characterized in that: The curved rear shell (2) is provided with a plurality of fixing holes (10), and sutures are passed through the fixing holes (10), and the bladder is fixed to the inner side of the curved rear shell (2) by means of the sutures; the curved front shell (1) is provided with a fixing block (11), and the fixing block (11) is provided with a through hole, and a binding wire or a hook is provided in the through hole, and the bladder wrapping piece is fixed to the human pelvis by means of the binding wire or the hook.

10. The artificial pneumatic assisted urination system according to claim 1, characterized in that: The air supply assembly comprises an air pumping mechanism and an air guiding mechanism, the air pumping mechanism comprises an air pumping bag (24), the air guiding mechanism comprises a main pipe, the air pumping bag is connected to the main pipe, the main pipe is connected to three catheters (22), one of the catheters (22) is connected to the connecting piece (21), and the other two catheters (22) are respectively connected to the anti-reflux air bags in two ureteral wrapping shells (3).

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