Bladder irrigation device for nursing

Abstract

The invention relates to the technical field of medical instruments, in particular to a bladder irrigation device for nursing, comprising: a portable box, one side of which is rotatably connected with a box cover; the mounting plate is fixedly connected to the interior of the portable box; the three-cavity catheter is arranged at the position of the portable box and used in cooperation with the portable box, and the upper end of a flushing pipe of the three-cavity catheter is communicated with a normal saline bag; the two peristaltic pumps are symmetrically and fixedly mounted on the two sides of the mounting plate respectively and used for extruding and pushing a flushing pipe and a drainage pipe of the three-cavity catheter. The two symmetrically-arranged peristaltic pumps are adopted to drive the flushing pipe and the drainage pipe of the three-cavity catheter respectively, according to the flushing requirement, the hydraulic power unit is adjusted and controlled to flexibly adjust and control the pressing and releasing states of the pump cores to the pipeline, and the controllable operation of independent pressurization in the flushing and drainage process is achieved; the system is suitable for various nursing scenes such as wards, emergency treatment and families, and the treatment safety and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to a bladder irrigation device for nursing use. Background Technology

[0002] In urological clinical nursing, bladder irrigation is an important means of managing complications such as postoperative bleeding, bladder stones, infection, or mucus obstruction. Routine procedures often use a three-lumen catheter, which includes a balloon inflation chamber, an irrigation inlet chamber, and a urine drainage chamber, achieving the basic functions of indwelling fixation and irrigation / drainage. To maintain bladder patency, medical staff typically perform irrigation using gravity dripping or manual syringe injection to remove blood clots, stones, or secretions. However, with increasing clinical demands for operational efficiency, patient comfort, and safety, traditional irrigation methods have gradually revealed significant limitations in dealing with sudden obstruction or complex conditions.

[0003] Although existing technologies have attempted to optimize the anti-blockage performance of urinary catheters, such as the bladder irrigation anti-blockage catheter with an external filter disclosed in Chinese patent CN104415449B, which can prevent blood clots or tissue fragments from blocking the drainage port to a certain extent, improve drainage stability, and reduce patient discomfort, they still do not solve the core problem of switching between irrigation and drainage modes. Specifically, existing three-lumen urinary catheter systems still rely on gravity or manual injection for fluid delivery and cannot quickly switch to positive pressure irrigation or negative pressure suction drainage modes during cyclic irrigation. When blood clots suddenly accumulate or mucus blocks the bladder, medical staff need to temporarily disconnect and connect syringes or external negative pressure devices, which is cumbersome and has a delayed response, easily delaying rescue opportunities. In addition, due to the lack of a real-time monitoring mechanism for bladder pressure, relying solely on experience to judge the safety of irrigation carries the risk of bladder mucosal damage, urine reflux, and even pyelonephritis due to excessive pressure. Therefore, it is necessary to design a nursing bladder irrigation device to address the shortcomings of existing technologies. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a bladder irrigation device for nursing.

[0005] The technical solution is as follows: A nursing bladder irrigation device includes: a portable case, which serves as the main body for loading the irrigation device, with a cover rotatably connected to one side of the case; a mounting plate, fixedly connected inside the portable case; a three-lumen catheter, used in conjunction with the portable case, wherein the three-lumen catheter is an existing medical device, and the upper end of the irrigation tube of the three-lumen catheter is connected to a saline bag; it also includes: two peristaltic pumps, symmetrically fixedly mounted on both sides of the mounting plate, used to squeeze and push the irrigation tube and drainage tube of the three-lumen catheter, the peristaltic pump consisting of a shell, a pressure cap, and a pump core, the shell being fixedly mounted on the side of the mounting plate, the pressure cap being detachably mounted on the shell by bolts, and the pump core being rotatably mounted inside the shell, used to squeeze the irrigation tube and drainage tube placed therebetween; the pump core includes a rotor rotatably connected inside the shell, with hydraulic oil chambers symmetrically opened on both sides of the rotor. A hollow tube is sealed and rotatably mounted at the rotation center of the rotor. The hollow tube has an outlet corresponding to the hydraulic oil chamber. Positioning frames are slidably connected to the hydraulic oil chambers on both sides of the rotor. A roller is rotatably mounted on the end of the positioning frame away from the rotor. A first spring is provided between the rotor and the positioning frame. A drive unit is mounted on the mounting plate and is used to drive the peristaltic pump. A hydraulic power unit is fixedly mounted in the carrying case and is used to synchronously drive the positioning frames on both sides of the rotor through hydraulic oil, thereby controlling whether the pump core squeezes the corresponding flushing tube or drainage tube. The hydraulic power unit integrates a hydraulic oil tank, a pump body, and a control valve. A hydraulic pipe is connected to the oil outlet of the hydraulic power unit. A connector is fixedly mounted at the end of the hydraulic pipe. The connector is sealed and connected to the hollow tube. A pressure indicator mechanism is located inside the case cover and is used to display the hydraulic pressure of the balloon of the three-lumen catheter in the bladder, thereby monitoring the pressure of the bladder flushing fluid.

[0006] Preferably, the driving component includes a drive shaft, a gear disk, a motor, and gears. The drive shaft is rotatably connected to the mounting plate. The drive shaft and the rotors of the pump cores on both sides are coaxially and fixedly connected. The gear disk is fixedly mounted on the drive shaft. The motor is fixedly mounted on the mounting plate near the drive shaft. The gears are fixedly connected to the output shaft of the motor. The gears and the gear disk mesh with each other.

[0007] Preferably, the pressure indicator mechanism consists of a switching valve, a pressure display, and a connecting pipe. The switching valve and the pressure display are both fixedly installed inside the box cover. The switching valve is connected to the inflation tube of the three-lumen catheter. A connecting pipe connects the switching valve and the pressure display. The switching valve is used to switch the connection state between the inflation tube and the pressure display.

[0008] Preferably, the switching valve includes a mounting base, a valve core, and a one-way connector. The mounting base is fixedly connected to the inside of the box cover and has three interfaces. The lower interface of the mounting base is connected to a connecting pipe, the left interface of the mounting base is connected to an inflation pipe, and the upper interface of the mounting base is connected to a one-way connector. The one-way connector is used to connect an external syringe. The syringe pumps sterile water into the three-lumen catheter through the inflation pipe, causing the balloon at the front end of the three-lumen catheter to inflate and be positioned at the bladder neck of the patient. The valve core is sealed and rotatably connected to the mounting base. A knob is provided on the outside of the valve core, and a right-angle through cavity is provided inside the valve core. The valve core is used to switch between two adjacent interfaces on the mounting base.

[0009] Preferably, the pressure display includes a measuring cylinder, a scale, an indicator float, and a second spring. The measuring cylinder is fixedly installed inside the cover. The measuring cylinder is a transparent cylinder with a scale for displaying pressure on its wall. The indicator float is slidably installed inside the measuring cylinder. The second spring is installed between the measuring cylinder and the indicator float. The measuring cylinder chamber on the side of the indicator float away from the second spring is connected to a connecting pipe.

[0010] Preferably, a sealing ring is fixedly provided at the rotor connection of the positioning frame, and the sealing ring is used to seal the sliding connection between the rotor hydraulic oil chamber and the positioning frame.

[0011] Preferably, the portable case is equipped with a heating mechanism to warm the saline solution introduced into the flushing tube, reducing adverse stimulation during bladder irrigation. The heating mechanism includes a housing, an electric heating element, a liquid pump, and a heating tube. The housing is fixedly installed inside the portable case and stores water for heating. The electric heating element is bent and laid inside the housing. A heating tube is connected to one side of the housing and runs along the flushing section of the three-lumen catheter, fitting tightly against the lumen of the flushing tube for heat exchange. The liquid pump is fixedly installed inside the housing, and its inlet is connected to the heating tube. A digital thermometer for displaying the internal water temperature is installed on the housing.

[0012] Preferably, the inner wall of the peristaltic pump housing is provided with a plurality of limiting blocks at intervals along the pipe groove. The limiting blocks are used to stabilize and limit the position of the flushing pipe or drainage pipe between the housing and the gland.

[0013] The beneficial effects of this invention are: 1. This invention uses two symmetrically arranged peristaltic pumps to drive the flushing tube and drainage tube of the three-lumen urinary catheter respectively. According to the flushing needs, the pump core can be flexibly adjusted to pressurize and release the tube according to the needs of flushing. This enables independent pressurization controllable operation of the flushing and drainage process, which is suitable for various nursing scenarios such as wards, emergency rooms and homes, and improves treatment safety and efficiency.

[0014] 2. The present invention uses a pressure-indicating mechanism located inside the box cover to safely switch between filling and pressure measurement modes via a switching valve. This ensures that the balloon is reliably anchored at the bladder neck, prevents overfilling or misoperation, and displays the pressure status of the balloon inside the bladder, thereby improving the safety of the tube inside the bladder.

[0015] 3. The invention has a built-in heating mechanism to preheat the saline solution to near body temperature before it is injected into the bladder, which effectively reduces adverse reactions such as bladder spasms and pain caused by cold stimulation, and improves patient tolerance and overall nursing experience. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the three-lumen urinary catheter, flushing tube, drainage tube, and balloon of the present invention.

[0018] Figure 3 This is a schematic diagram of the portable case, mounting plate, peristaltic pump, and hydraulic power unit of the present invention.

[0019] Figure 4 This diagram shows the connection relationships of components such as the mounting plate, peristaltic pump, and hydraulic power unit of this invention.

[0020] Figure 5 This is an exploded view of the mounting plate and peristaltic pump of the present invention.

[0021] Figure 6 This is a schematic diagram of the rotor, hollow tube, positioning frame, rollers, and connector of the present invention.

[0022] Figure 7 This is a schematic diagram showing the relationship between the inflation tube, switching valve, and pressure display gauge of the present invention.

[0023] Figure 8 This is a schematic diagram of the specific components of the pressure-indicating mechanism of the present invention.

[0024] Figure 9 This is a schematic diagram of the housing, heating element, liquid pump, and heating element of the present invention.

[0025] Figure 10 This is a three-dimensional structural diagram of the outer shell, pressure cap, and limiting block of the present invention.

[0026] Explanation of reference numerals in the attached drawings: 1_Portable case, 2_Case lid, 3_Mounting plate, 4_Peristaltic pump, 41_Outer shell, 42_Grip cap, 5_Pump core, 51_Rotor, 52_Hollow tube, 521_Outlet, 53_Positioning frame, 531_Sealing ring, 54_Roller, 55_First spring, 6_Driver, 61_Drive shaft, 62_Gear disc, 63_Motor, 64_Gear, 7_Hydraulic power unit, 71_Hydraulic pipe, 72_Connector, 8_Pressure indicator mechanism, 81_Switching valve, 811 _Mounting base, 812_Valve core, 813_One-way connector, 82_Pressure display gauge, 821_Measuring cylinder, 822_Scale, 823_Indicating float, 824_Second spring, 83_Connecting tube, 9_Heating mechanism, 91_Housing, 92_Heating tube, 93_Liquid pump, 94_Heating tube, 95_Digital thermometer, 10_Limit block, 100_Three-lumen catheter, 101_Flushing tube, 102_Drainage tube, 103_Inflation tube, 104_Balloon, 11_Saline bag. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] For a nursing bladder irrigation device, please refer to [link / reference]. Figures 1-6As shown, it includes: a portable case 1, which serves as the main body for loading the flushing device, with a case cover 2 rotatably connected to one side of the case 1; a mounting plate 3, fixedly connected inside the portable case 1; a three-lumen catheter 100, installed in the portable case 1 for use, the three-lumen catheter 100 being an existing medical device, with a saline bag 11 connected to the upper end of the flushing tube 101 of the three-lumen catheter 100; and also includes: two peristaltic pumps 4, symmetrically fixedly installed on both sides of the mounting plate 3, used for pumping the three-lumen catheter 100. The flushing pipe 101 and the drainage pipe 102 are squeezed and pushed. The peristaltic pump 4 consists of a housing 41, a pressure cap 42, and a pump core 5. The housing 41 is fixedly installed on the side of the mounting plate 3. The pressure cap 42 is detachably installed on the housing 41 by bolts. The pump core 5 is rotatably installed inside the housing 41. The pump core 5 is used to squeeze the flushing pipe 101 and the drainage pipe 102 placed therebetween. The pump core 5 includes a rotor 51 rotatably connected inside the housing 41. Hydraulic oil chambers are symmetrically opened on both sides of the rotor 51. The center of rotation of the rotor 51 is sealed. A hollow tube 52 is rotatably mounted, with an outlet 521 corresponding to the hydraulic oil chamber. Positioning frames 53 are slidably connected to the hydraulic oil chambers on both sides of the rotor 51. A roller 54 is rotatably mounted on the end of the positioning frame 53 away from the rotor 51. A first spring 55 is provided between the rotor 51 and the positioning frame 53. A drive unit 6, mounted on the mounting plate 3, is used to drive the peristaltic pump 4. A hydraulic power unit 7, fixedly mounted inside the carrying case 1, is used to synchronously drive the positioning frames on both sides of the rotor 51 via hydraulic oil. 53, thereby controlling whether the pump core 5 squeezes the corresponding flushing tube 101 or drainage tube 102; the hydraulic power unit 7 integrates a hydraulic oil tank, pump body and control valve; hydraulic pipe 71, connected to the oil outlet of the hydraulic power unit 7; connector 72, fixedly installed at the end of hydraulic pipe 71, the connector 72 is sealed and connected to the hollow tube 52; pressure indicator 8, installed inside the box cover 2, is used to display the hydraulic pressure of the balloon 104 of the three-lumen catheter 100 in the bladder, thereby monitoring the pressure of the bladder flushing fluid.

[0029] Please see Figure 3 and Figure 5 As shown, the drive unit 6 includes a drive shaft 61, a gear disk 62, a motor 63, and a gear 64. The drive shaft 61 is rotatably connected to the mounting plate 3. The drive shaft 61 and the rotors 51 of the pump cores 5 on both sides are coaxially and fixedly connected. The gear disk 62 is fixedly mounted on the drive shaft 61. The motor 63 is fixedly mounted on the mounting plate 3 near the drive shaft 61. The gear 64 is fixedly connected to the output shaft of the motor 63. The gear 64 and the gear disk 62 mesh with each other.

[0030] Please see Figure 5 and Figure 6 As shown, a sealing ring 531 is fixedly installed at the connection between the positioning frame 53 and the rotor 51. The sealing ring 531 is used to seal the sliding connection between the hydraulic oil chamber of the rotor 51 and the positioning frame 53.

[0031] Please see Figure 10 As shown, multiple limiting blocks 10 are provided at intervals along the pipe groove on the inner wall of the housing 41 of the peristaltic pump 4. The limiting blocks 10 are used to stabilize and limit the position of the flushing pipe 101 or the drainage pipe 102 between the housing 41 and the pressure cap 42.

[0032] When using this flushing device, first open the lid 2 of the portable case 1, remove the pressure cap 42 on the outer shell 41 of the peristaltic pump 4, and then insert the flushing tube 101 and drainage tube 102 of the three-lumen catheter 100 into the tube grooves inside the two peristaltic pumps 4 respectively. Under the limiting action of multiple limiting blocks 10, the roller 54 inside the pump core 5 can stably contact the tube wall. Then, firmly install the pressure cap 42 back into the outer shell 41, and then connect the hydraulic power unit 7 and the peristaltic pump 4 through the hydraulic pipe 71 and the connector 72. At this time, the working state of the peristaltic pump 4 (squeezing or releasing the tube) is changed from... The hydraulic power unit 7 is used for control. When pressurized flushing of the bladder is required, the hydraulic power unit 7 is activated. The hydraulic oil in the hydraulic power unit 7 is pumped into the hollow tube 52 of the rotor 51 through the hydraulic pipe 71 and the connector 72. The pumped hydraulic oil enters the hydraulic oil chambers on both sides of the rotor 51 from the outlet 521 of the hollow tube 52. Under the sealing action of the sealing ring 531, the oil pressure will overcome the elastic force of the first spring 55 and push the positioning frames 53 on both sides of the rotor 51 to unfold outward, so that the rollers 54 at the ends of the positioning frames 53 contact and press the corresponding pipelines. At this time, the peristalsis... Pump core 5 of pump 4 is in the activated state, and motor 63 is also activated. Motor 63 drives gear disc 62 to rotate through gear 64 on output shaft. The rotating gear disc 62 synchronously drives rotor 51 to rotate through drive shaft 61. As rotor 51 rotates, rollers 54 on positioning frame 53 can perform wave-like squeezing on flushing tube 101, pressurizing the saline in flushing tube 101 and continuously pumping it into the bladder. At the same time, pump core 5 on the drainage tube 102 side is also kept in the squeezing state by rollers 54 under the action of hydraulic oil, so that the drainage tube 102 generates negative pressure and accelerates The fluid in the bladder is drained. When pressurized flushing is not required, the hydraulic power unit 7 controls the oil circuit in the hollow tube 52 and hydraulic tube 71 to depressurize, so that the positioning frame 53 is reset and retracted under the action of the first spring 55, and the roller 54 of the squeezing tube is retracted. At this time, the pump core 5 of the peristaltic pump 4 is in the closed state, so that the saline in the saline bag 11 flows naturally into the flushing tube 101 by gravity. At the same time, the drainage tube 102 will also naturally drain the fluid in the bladder, so that the flushing device can adapt to different bladder flushing conditions without the need for medical staff to perform additional pressurization operations.

[0033] Please see Figure 1 and Figure 7As shown, the pressure indicator mechanism 8 consists of a switching valve 81, a pressure display 82, and a connecting pipe 83. The switching valve 81 and the pressure display 82 are both fixedly installed inside the box cover 2. The switching valve 81 is connected to the inflation tube 103 of the three-lumen catheter 100. The connecting pipe 83 connects the switching valve 81 and the pressure display 82. The switching valve 81 is used to switch the connection state between the inflation tube 103 and the pressure display 82.

[0034] Please see Figure 7 and Figure 8 As shown, the switching valve 81 includes a mounting base 811, a valve core 812, and a one-way connector 813. The mounting base 811 is fixedly connected to the inside of the cover 2. The mounting base 811 has three interfaces. The lower interface of the mounting base 811 is connected to the connecting pipe 83, the left interface of the mounting base 811 is connected to the inflation pipe 103, and the upper interface of the mounting base 811 is connected to the one-way connector 813. The one-way connector 813 is used to connect an external syringe. The syringe pumps sterile water into the three-lumen catheter 100 through the inflation pipe 103, causing the balloon 104 at the front end of the three-lumen catheter 100 to expand and be positioned at the bladder neck of the patient. The valve core 812 is sealed and rotatably connected to the mounting base 811. A knob is provided on the outside of the valve core 812, and a right-angle through cavity is provided inside the valve core 812. The valve core 812 is used to switch between two adjacent interfaces on the mounting base 811.

[0035] Please see Figure 7 and Figure 8 As shown, the pressure display gauge 82 includes a measuring cylinder 821, a scale 822, an indicator float 823, and a second spring 824. The measuring cylinder 821 is fixedly installed inside the cover 2. The measuring cylinder 821 is a transparent cylinder and the cylinder wall is provided with a scale 822 for displaying pressure. The indicator float 823 is slidably installed inside the measuring cylinder 821. The second spring 824 is installed between the measuring cylinder 821 and the indicator float 823. The measuring cylinder 821 chamber on the side of the indicator float 823 away from the second spring 824 is connected to the connecting pipe 83.

[0036] To achieve intermittent monitoring of bladder pressure, the device is equipped with a pressure indicator mechanism 8. Medical personnel rotate the valve core 812 of the switching valve 81, connecting the right-angle passage inside the valve core 812 to the inflation tube 103 and the upper one-way connector 813. At this time, a syringe connected to the one-way connector 813 can be used to inject sterile water into the inflation tube 103, causing the balloon 104 to inflate and securely fix itself at the bladder neck. After fixation, the valve core 812 is rotated again to switch the pathway, connecting the inflation tube 103 to the connecting tube 83. Thus, the inner cavity of the balloon 104, the inflation tube 103, the connecting tube 83, and the pressure indicator 82 form a completely closed hydraulic transmission system. During flushing or drainage, the bladder... The pressure change within the cavity directly affects the wall of the balloon 104 in contact with it, thereby causing a synchronous change in the fluid pressure within the closed system. This change is transmitted to the pressure display gauge 82, and the flushing pressure acts on the indicator float 823, pushing the indicator float 823 to slide within the transparent measuring cylinder 821 against the elastic force of the second spring 824. The cylinder wall of the measuring cylinder 821 is marked with a calibrated pressure scale 822, and the value indicated by the float on the scale 822 is the real-time reflection of the intrabladder pressure. This design allows medical staff to continuously and intuitively monitor the intrabladder pressure during operation without additional complex equipment, effectively preventing bladder overfilling or damage caused by excessively rapid flushing or poor drainage, and ensuring operational safety.

[0037] Please see Figure 7 and Figure 9 As shown, a heating mechanism 9 is installed inside the portable case 1 to warm the saline solution introduced into the flushing tube 101, reducing adverse stimulation during bladder irrigation. The heating mechanism 9 includes a housing 91, an electric heating tube 92, a liquid pump 93, and a heating tube 94. The housing 91 is fixedly installed inside the portable case 1 and stores water for heating. The electric heating tube 92 is bent and laid inside the housing 91. The heating tube 94 is connected to one side of the housing 91. The heating tube 94 is laid along the flushing tube 101 section of the three-lumen catheter 100 and is tightly fitted with the lumen of the flushing tube 101 for heat exchange. The liquid pump 93 is fixedly installed inside the housing 91, and the inlet of the liquid pump 93 is connected to the heating tube 94. A digital display thermometer 95 for displaying the internal water temperature is installed on the housing 91.

[0038] To improve patient comfort and reduce bladder spasms caused by cold stimulation, the device integrates an active heating mechanism 9. The heat source is an electric heating tube 92 fixed inside the casing 91, which continuously heats and maintains the temperature of the water stored inside the casing 91, creating a constant-temperature hot water bath. A digital thermometer 95 displays the water temperature inside the casing 91 in real time, allowing medical staff to precisely adjust the temperature. The heating mechanism 9 is powered by a miniature liquid pump 93. When the pump 93 is activated, it pumps the constant-temperature hot water from the casing 91 into the connected heating tube 94, which is tightly fitted to the casing. The outer wall of the irrigation tube 101 attached to the three-lumen catheter 100 is heated by constant-temperature hot water flowing continuously outside the tube wall when room-temperature saline flows through it. This heat exchange continuously and evenly heats the irrigation fluid to a temperature close to the body's suitable temperature (usually 35-37 degrees Celsius). The heated saline is then smoothly delivered into the bladder through the irrigation tube 101, thereby eliminating the stimulation of the bladder mucosa by the low-temperature fluid, improving the patient's tolerance and comfort during long-term or repeated irrigation treatments, and ensuring the safety of the patient's bladder irrigation care.

[0039] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. All equivalent substitutions made within the principles of the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this invention are existing technologies known to those skilled in the art.

Claims

1. A nursing bladder irrigation device, comprising: Portable case (1), with a lid (2) rotatably connected to one side of the portable case (1); Mounting plate (3) is fixed inside the portable case (1); Its characteristic is that it further includes: Two peristaltic pumps (4) are provided and symmetrically arranged on both sides of the mounting plate (3). The peristaltic pump (4) consists of a shell (41), a pressure cap (42) and a pump core (5). The shell (41) is fixedly installed on the side of the mounting plate (3). The pressure cap (42) is detachably installed on the shell (41). The pump core (5) is rotatably installed inside the shell (41). The pump core (5) includes a rotor (51) rotatably connected inside the shell (41). Hydraulic oil chambers are symmetrically opened on both sides of the rotor (51). A hollow tube (52) is rotatably installed inside the rotor (51). The hollow tube (52) is opened with an outlet (521) corresponding to the hydraulic oil chamber. A positioning frame (53) is slidably connected to the hydraulic oil chambers on both sides of the rotor (51). Rollers (54) are rotatably installed at both ends of the positioning frame (53). A first spring (55) is provided between the rotor (51) and the positioning frame (53). A drive unit (6) is mounted on a mounting plate (3) and is used to drive a peristaltic pump (4); a hydraulic power unit (7) is fixedly mounted inside a portable case (1); a hydraulic pipe (71) is connected to the oil outlet of the hydraulic power unit (7); a connector (72) is fixed to the end of the hydraulic pipe (71), and the connector (72) is sealed to the hollow pipe (52). A pressure indicator (8) is located inside the box cover (2) and is used to indicate the hydraulic pressure of the balloon (104) of the three-lumen catheter (100) in the bladder.

2. The bladder irrigation device for nursing use according to claim 1, characterized in that, The drive unit (6) includes a drive shaft (61), a gear disc (62), a motor (63), and a gear (64). The drive shaft (61) is rotatably connected to the mounting plate (3). The drive shaft (61) and the rotors (51) of the pump cores (5) on both sides are coaxially fixedly connected. The gear disc (62) is fixedly mounted on the drive shaft (61). The motor (63) is fixedly mounted on the mounting plate (3) near the drive shaft (61). The gear (64) is fixedly connected to the output shaft of the motor (63). The gear (64) and the gear disc (62) mesh with each other.

3. The bladder irrigation device for nursing use according to claim 1, characterized in that, The pressure indicator (8) consists of a switching valve (81), a pressure display (82), and a connecting pipe (83). The switching valve (81) and the pressure display (82) are both fixedly installed inside the box cover (2). The switching valve (81) is connected to the inflation tube (103) of the three-lumen catheter (100). The connecting pipe (83) connects the switching valve (81) and the pressure display (82). The switching valve (81) is used to switch the connection state between the inflation tube (103) and the pressure display (82).

4. A nursing bladder irrigation device according to claim 3, characterized in that, The switching valve (81) includes a mounting base (811), a valve core (812), and a one-way connector (813). The mounting base (811) is fixedly connected to the inside of the cover (2). The mounting base (811) has three interfaces. The lower interface of the mounting base (811) is connected to the connecting pipe (83), the left interface of the mounting base (811) is connected to the inflation pipe (103), and the upper interface of the mounting base (811) is connected to the one-way connector (813). The one-way connector (813) is used to connect an external syringe. The valve core (812) is sealed and rotatably connected to the mounting base (811). A knob is provided on the outside of the valve core (812). A right-angle through cavity is provided inside the valve core (812). The valve core (812) is used to switch between two adjacent interfaces on the mounting base (811).

5. A nursing bladder irrigation device according to claim 3, characterized in that, The pressure display gauge (82) includes a measuring cylinder (821), a scale (822), an indicator float (823), and a second spring (824). The measuring cylinder (821) is fixedly installed inside the box cover (2). The measuring cylinder (821) is a transparent cylinder with a scale (822) for displaying pressure on its wall. The indicator float (823) is slidably installed inside the measuring cylinder (821). The second spring (824) is installed between the measuring cylinder (821) and the indicator float (823). The measuring cylinder (821) chamber on the side of the indicator float (823) away from the second spring (824) is connected to the connecting pipe (83).

6. A bladder irrigation device for nursing use according to claim 1, characterized in that, A sealing ring (531) is fixedly installed at the connection point between the positioning frame (53) and the rotor (51).

7. A nursing bladder irrigation device according to claim 1, characterized in that, The portable case (1) is equipped with a heating mechanism (9) for heating the saline solution introduced into the flushing tube (101). The heating mechanism (9) includes a housing (91), an electric heating tube (92), a liquid pump (93), and a heating tube (94). The housing (91) is fixedly installed inside the portable case (1). The housing (91) stores water for heating. The electric heating tube (92) is bent and laid inside the housing (91). The heating tube (94) is connected to one side of the housing (91). The heating tube (94) is laid along the flushing tube (101) section of the three-lumen catheter (100). The liquid pump (93) is fixedly installed inside the housing (91). The infusion port of the liquid pump (93) is connected to the heating tube (94). A digital display thermometer (95) is installed on the housing (91).

8. A bladder irrigation device for nursing use according to claim 1, characterized in that, The peristaltic pump (4) has multiple limiting blocks (10) spaced apart along the pipe groove on the inner wall of the outer shell (41). The limiting blocks (10) are used to stabilize and limit the position of the pipeline between the outer shell (41) and the pressure cap (42).

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