An automated peritoneal dialysis apparatus

Abstract

The present application belongs to the technical field of peritoneal dialysis, and provides an automatic peritoneal dialysis device, which comprises a shell placed on a support table, the upper end of the shell is provided with a control console and a placing plate for placing a dialysate bag, the upper end of the shell is fixed with a liquid hanging rod for hanging a plurality of liquid supplement bags, the shell is divided into left and right two chambers by a partition plate, the connecting end of the dialysate bag is inserted into one end of an elastic water bag arranged in the left chamber, and the elastic water bag is provided with an adjusting structure for adjusting the capacity of the elastic water bag, the adjusting structure for adjusting the capacity of the elastic water bag can adjust the total amount of single dialysate flowing into the body according to the patient's own condition, the switching structure is arranged to automatically change the liquid, thereby reducing the liquid changing operation burden of the patient and nursing staff, and the peristaltic pump is arranged to adjust the flow and the size of the flow rate of the dialysate flowing into the patient's body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of peritoneal dialysis, and particularly relates to an automatic peritoneal dialysis device. BACKGROUND

[0002] Peritoneal dialysis is one of the treatment methods for uremic patients, through the exchange of solute and water between the dialysate filled into the abdominal cavity and the plasma components in the capillaries on the other side of the peritoneum, the metabolic products and excessive water in the body are removed, and the necessary substances for the body are supplemented through the dialysate. By continuously updating the peritoneal dialysate, the purpose of kidney replacement or support treatment is achieved.

[0003] The existing peritoneal dialysis method is to connect the peritoneal dialysate with the external catheter of the peritoneal dialysis catheter. Under the action of gravity, the peritoneal dialysate enters the patient's abdomen. In the use process, when the patient feels uncomfortable, the flow rate of the peritoneal dialysate in the external catheter and the outflow of the peritoneal dialysate need to be adjusted back and forth. The existing peritoneal dialysis method cannot adjust the flow rate, flow rate and temperature of the dialysate during use, the use method is single, it is not convenient for the patient to use, and the incidence of peritonitis is significantly increased.

[0004] Now there is a need to invent an automatic peritoneal dialysis device. The machine adjusts the single inflow of the dialysate and the flow rate and flow rate of the dialysate flowing into the body according to the pre-setting, reduces the operation burden of the patient and the nursing staff, and improves the life quality of the peritoneal dialysis patient. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides an automatic peritoneal dialysis device to solve the problems raised in the background art.

[0006] The technical scheme of the present application is as follows:

[0007] An automatic peritoneal dialysis device, comprising a shell placed on a support table, a control console and a placing plate for placing a dialysate bag are arranged at the upper end of the shell, a liquid hanging rod for hanging a plurality of liquid supplement bags is fixed to the upper end of the shell,

[0008] A switching structure is arranged on the left side of the shell, and the connecting end of the dialysate bag is inserted into the inlet end of the switching structure;

[0009] The shell is divided into left and right two chambers by a partition plate arranged therein, the outlet end of the switching structure is inserted into one end of an elastic water bag arranged in the left chamber, and an adjusting structure for adjusting the capacity of the elastic water bag is arranged on the elastic water bag;

[0010] The other end of the elastic water bag is in communication with the inlet end of a peristaltic pump arranged in the right chamber, and the outlet of the peristaltic pump is connected with a pipeline end portion which is in communication with the human body and a waste liquid barrel through two branch pipelines respectively.

[0011] Further, the adjusting structure comprises two clamping plates and a moving structure for driving the two clamping plates to move towards or away from each other, and the elastic water bag is located between the two clamping plates.

[0012] Further, the moving structure comprises a rack, a threaded rod, a connecting rod structure and a sector gear, the end of the threaded rod penetrates through the shell, the end of the threaded rod is fixedly connected with the connecting rod structure, the end of the connecting rod structure is fixedly connected with the sector gear, and the sector gear is engaged with the rack fixed at the bottom end of the clamping plate.

[0013] Further, the switching structure comprises a connecting shell, a sliding block, a pull rod, a baffle, a first spring and an electromagnet, the connecting shell is fixedly connected to the left side of the shell, the baffle is installed in the connecting shell, the sliding block is slidingly connected to the left side of the baffle, the side of the sliding block close to the baffle is fixedly connected with one end of the pull rod, the other end of the pull rod penetrates through the baffle and is fixedly connected with one end of the first spring, and the other end of the first spring is fixedly connected with the electromagnet on the side wall of the connecting shell.

[0014] Further, a fourth connecting pipe connected with the liquid supplementing bag is arranged on the upper surface of the connecting shell relative to the position of the left side of the baffle, a fifth connecting pipe connected with the dialysate bag is arranged on the front of the connecting shell, and an inverted F-shaped through hole is formed in the sliding block, which can communicate with any one of the fourth connecting pipes during the sliding process.

[0015] Further, the peristaltic pump comprises a motor, a rotating disc fixedly connected to the output shaft of the motor, four fixed rods arranged in a circle on the rotating disc, and a roller and an extension roller arranged in a cross shape on the rotating disc through the fixed rods.

[0016] Further, the extension roller comprises an outer sleeve, an inner sleeve, an X-shaped rod and a second spring, the outer sleeve is sleeved on the outer side of the inner sleeve, the upper end of the X-shaped rod is fixedly connected to the top end of the inner wall of the outer sleeve, the lower end of the X-shaped rod is slidingly connected to the side wall of the inner sleeve, and the lower end of the X-shaped rod is fixedly connected with the second spring.

[0017] Further, the lower end of the X-shaped rod is made of elastic material, the end of the lower end of the X-shaped rod is provided with a protrusion, and the side wall of the inner sleeve is provided with a groove matched with the protrusion.

[0018] Further, a placing plate is arranged on the left side of the chamber, an electric heating plate is arranged in the placing plate, and a plurality of air vents are arranged on the bottom end of the placing plate relative to the position of the electric heating plate and in communication with the left side of the chamber.

[0019] Further, an electric heating plate for heating the liquid in the elastic water bag is arranged in the clamping plate.

[0020] Compared with the prior art, the technical scheme provided by the present application has the following beneficial effects: by arranging the adjusting structure for adjusting the capacity of the elastic water bag, the total amount of single dialysis solution flowing into the body can be adjusted according to the patient's own condition; by arranging the switching structure, automatic liquid changing is realized, thereby reducing the liquid changing operation burden of the patient and the nursing staff; and by arranging the peristaltic pump, the flow and the flow rate of the dialysis solution flowing into the patient's body can be adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of the automatic peritoneal dialysis equipment of the present application.

[0022] Figure 2 It is a simplified view of the automatic peritoneal dialysis equipment system.

[0023] Figure 3 It is a transverse cross-sectional schematic view of the automatic peritoneal dialysis equipment.

[0024] Figure 4 It is a local enlarged view of A.

[0025] Figure 5 It is a switching structure.

[0026] Figure 6 It is a peristaltic pump structure.

[0027] Figure 7 It is a roller increasing structure.

[0028] Figure 8 It is an abdominal fluid heating structure.

[0029] In the figure: 1, shell, 101, partition plate, 102, transverse plate, 2, placing plate, 201, electric heating plate, 202, air vent, 3, control console, 4, support table, 5, waste liquid barrel, 6, liquid hanging rod, 7, clamping plate, 701, first connecting pipe, 702, second connecting pipe, 8, moving structure, 801, rack, 802, threaded rod, 803, first connecting rod, 804, hinged rod, 805, second connecting rod, 806, sector gear, 9, switching structure, 901, connecting shell, 902, sliding block, 903, through hole, 904, pull rod, 905, baffle, 906, first spring, 907, electromagnet, 10, peristaltic pump, 103, fixed rod, 104, fixed roller, 105, telescopic roller, 1051, outer sleeve, 1052, inner sleeve, 1053, V-shaped rod, 1054, vertical rod, 1055, inverted V-shaped rod, 1056, second spring, 1057, protrusion, 1058, groove, 1059, fixing hole, 106, third connecting rod, 107, motor, 108, turntable, 11, third connecting pipe, 12, dialysis solution bag, 13, liquid supplementing bag, 14, human body connecting end, 15, fourth connecting pipe, 16, fifth connecting pipe. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0031] Reference Figures 1-8 An automatic peritoneal dialysis device comprises a shell 1 placed on a support table 4, an upper end of the shell 1 is provided with a control console 3 and a placement plate 2 for placing a dialysate bag 12, an upper end of the shell 1 is fixed with a liquid hanging rod 6 for hanging a plurality of liquid supplement bags 13,

[0032] A left side of the shell 1 is provided with a switching structure 9, a connecting end of the dialysate bag 12 is inserted into an inlet end of the switching structure 9;

[0033] The shell 1 is divided into left and right two chambers by a partition plate 101, an outlet end of the switching structure 9 is inserted into one end of an elastic water bag arranged in the left chamber, and the elastic water bag is provided with an adjusting structure for adjusting the capacity of the elastic water bag;

[0034] The other end of the elastic water bag is communicated with an inlet end of a peristaltic pump 10 arranged in the right chamber; and a pipeline end connected with an outlet of the peristaltic pump 10 is communicated with a human body and a waste liquid barrel 5 through two branch pipelines respectively.

[0035] Specifically, the support table 4 is a two-layer stainless steel structure, an upper layer of the support table 4 is used for placing the peritoneal dialysis device, and a lower layer is used for placing the waste liquid barrel 5; a threaded hole for installing the liquid hanging rod 6 is arranged at a left upper corner of the support table 4; the shell 1 is a box body with an open upper end; the placement plate 2 is fixed on the left side of the shell 1 through screws, and arc-shaped slopes are arranged on the left and right sides of the placement plate 2 to prevent the dialysate bag 12 from falling; the front side of the control console 3 is hinged to the front end of the shell 1 and is in a rear-opening state; outlet ends of the dialysate bag 12 and the liquid supplement bag 13 are connected with the inlet end of the switching structure 9; the elastic water bag is longitudinally placed in the left chamber, an outlet pipe (i.e., a second connecting pipe 702) of the elastic water bag penetrates through the front side of the shell 1, an L-shaped inlet pipe (i.e., a first connecting pipe 701) penetrates to the outlet end arranged on the side wall of the switching structure 9 to communicate, and the outlet end of the elastic water bag is connected with the inlet end of the peristaltic pump 10;

[0036] The elastic water bag adopts antibacterial and transparent material; when the elastic water bag is at the maximum volume, the diameter is smaller than the length of the left chamber, by setting the adjusting structure at the bottom end of the elastic water bag, the volume of the elastic water bag can be changed, so as to change the size of the capacity of the dialysis liquid in the water bag, the larger the volume of the elastic water bag, the more the capacity of the dialysis liquid left in the elastic water bag, at this time, the elastic water bag is equivalent to a pre-stored quantitative water bag, the patient can flow the used dialysis liquid into the elastic water bag in batches, when the patient uses, it is not necessary to care about the total dialysis amount on the equipment, only the capacity of single flow into the elastic water bag and the flow times of the elastic water bag are needed to be adjusted; in order to ensure that the liquid in the elastic water bag flows out, the air needs to be supplemented into the elastic water bag in time, the branch pipe in communication with the second connecting pipe 702 connected with the outlet end of the elastic water bag is arranged on the second connecting pipe 702, and the end of the branch pipe is covered with a waterproof air permeable film;

[0037] The flow sensor and the electromagnetic valve are mounted on the first connecting pipe 701, both components are in communication connection with the control console 3, the control console 3 controls the opening and closing of the electromagnetic valve according to the flow information fed back by the flow sensor, the capacity of single flow into the elastic water bag is controlled by the control console 3, when the outflow dialysis liquid reaches the set value, the flow quantitative control instrument stops working; when the dialysis liquid in the dialysis liquid bag 12 is used up, the switching structure 9 is opened, automatic liquid change is carried out, and the operation burden of the patient and the nursing personnel for liquid change is reduced; the waste liquid barrel 5 adopts transparent material and is printed with scales, so as to facilitate the nurses and patients to observe in time.

[0038] The connecting pipes used in the automatic peritoneal dialysis equipment can be plugged and connected and are disposable medical hoses; in order to occur in emergency and use in the working process, the electromagnetic valve in the prior art is mounted on each connecting pipe, the electromagnetic valve is in electrical connection with the control console 3, so that the connecting pipe is no longer in communication, and the flow of the dialysis liquid is prevented;

[0039] In use, according to the patient's own condition, the total inflow amount of dialysate and the single inflow amount, the number of single inflow amount, the flow rate and the use time are set, the required dialysate bag 12 and the supplement liquid bag 13 are prepared and hung; the dialysate in the dialysate bag 12 flows into the elastic water bag, the dialysate flows from the elastic water bag to the switching structure, at this time the supplement liquid bag 13 is not connected, the dialysate bag 12 is always in the connected state; the dialysate flows from the switching structure 9 to the peristaltic pump 10 and finally to the patient's body, until the dialysate in the patient's body reaches a certain capacity, the peristaltic pump stops, the connecting pipe of the human body connection end 14 is disconnected, the electromagnetic valve prevents the connection, the waste liquid barrel 5 is not connected, the timer in the control console 3 starts timing, during the timing process, if the dialysate in the dialysate bag is insufficient (a liquid infusion alarm in the prior art is arranged on the pipeline connected to the dialysate bag 12, and the liquid infusion alarm is connected with the control console 3, when the dialysate is insufficient, the liquid infusion alarm issues an alarm), the switching structure 9 is started, one of the supplement liquid bags 13 is connected with the elastic water bag, the time is cut off, the electromagnetic valve of the waste liquid barrel 5 is opened, the electromagnetic valve of the total connecting pipe of the branch pipeline is closed, the dialysate in the abdominal cavity is discharged, and the waste liquid barrel 5 is closed.

[0040] As shown in Figure 3 and Figure 4 , the adjusting structure includes two clamping plates 7 and a moving structure 8 for driving the two clamping plates 7 to move towards or away from each other, the elastic water bag is located between the two clamping plates 7, the two clamping plates 7 are symmetrically arranged, the opposite surfaces of the two clamping plates 7 are arc-shaped structures matched with the structure of the elastic water bag, the positions where the clamping plate 7 contacts with the elastic water bag are fixed, when the moving structure 8 moves, the clamping plate 7 moves towards or away from each other, and the volume of the elastic water bag increases or decreases.

[0041] As shown in the figure, the moving structure 8 includes a rack 801, a threaded rod 802, a connecting rod structure and a sector gear 806, one end of the threaded rod 802 penetrates out of the shell 1, the other end of the threaded rod 802 is rotationally connected with the connecting rod structure, the end of the connecting rod structure is fixedly connected with the sector gear 806, and the sector gear 806 is engaged with the rack 801 fixed at the bottom end of the clamping plate 7.

[0042] Specifically, the rear end of the clamping plate 7 is provided with a transverse plate 102 in abutment, the transverse plate 102 is provided with a sliding groove in longitudinal section view in the shape of a Chinese character "Ku", the rear end of the clamping plate 7 is fixedly connected with a sliding block in the shape of a Chinese character "Ku", and the rear end of the sliding block is fixedly connected with a rack 801; the connecting rod structure comprises a first connecting rod 803, a hinged rod 804 and a second connecting rod 805, one end of the threaded rod 802 penetrates into the shell 1, the end of the threaded rod 802 is rotationally connected with the transverse first connecting rod 803, the two ends of the first connecting rod 803 are hingedly connected with one end of the hinged rod 804, the other end of the hinged rod 804 is hingedly connected with one end of the second connecting rod 805, and the other end of the second connecting rod 805 is fixedly connected with a sector gear 806; the number of teeth of the rack 801 is greater than that of the sector gear 806, so that the sector gear 806 will not fall off after being completely engaged with the rack 801; in the initial state, the sector gear 806 is located at the outermost side of the rack 801, the distance between the two clamping plates 7 is the smallest, and a certain space is left between the opposite surfaces of the two racks 801 for the inlet pipe of the elastic water bag to pass out, so that the inlet pipe is prevented from being blocked during movement;

[0043] In use, the threaded rod 802 is rotated and screwed, the end of the threaded rod 802 is elongated, the first connecting rod 803 moves towards the transverse plate 102 as the threaded rod 802 is elongated, the end portions of the hinged rods 804 connected to the two sides of the first connecting rod 803 are inclined upwards and simultaneously move towards the front side, at this time, the hinged point of the second connecting rod 805 and the hinged rod 804 is the center of the circle, the second connecting rod makes a rotary motion, the sector gear rotates clockwise or counterclockwise and is engaged with the rack, and the two clamping plates 7 are simultaneously moved towards each other or away from each other; the movement structure 8 arranged on the clamping plate 7 can make the clamping plate 7 move the elastic water bag and change the capacity of the dialysis solution for single use.

[0044] As shown in Figure 5 The switching structure 9 comprises a connecting shell 901, a sliding block 902, a pull rod 904, a baffle 905, a first spring 906 and an electromagnet 907, the connecting shell 901 is fixedly connected to the left side of the shell 1, the baffle 905 is installed in the connecting shell 901, the sliding block 902 is slidingly connected to the left side of the baffle 905, one end of the pull rod 904 is fixedly connected to the side of the sliding block 902 close to the baffle 905, the other end of the pull rod 904 is fixedly connected with one end of the first spring 906 penetrating through the baffle 905, and the other end of the first spring 906 is fixedly connected to the electromagnet 907 on the side wall of the connecting shell 901;

[0045] A fourth connecting pipe 15, which connects to the replenishment bag 13, is provided on the upper surface of the connecting shell 901 at a position relative to the left side of the baffle 905. A fifth connecting pipe 16, which connects to the dialysate bag 12, is provided at the front of the connecting shell 901. Both the fourth connecting pipe 15 and the fifth connecting pipe 16 serve as the inlet end of the switching structure 9. An inverted F-shaped through hole 903 is provided inside the slider 902. The two transverse through holes of the through hole 903 face to the left. During the sliding process, the through hole 903 can communicate with any one of the fourth connecting pipes 15.

[0046] Specifically, in the initial position, the slider 902 is located in the middle of the two fourth connecting pipes 15, that is, the vertical through hole in the through hole 903 is not connected to the two fourth connecting pipes 15; when connected to the fourth connecting pipe 15 on the left, the end of the pull rod 904 passes through the baffle 905, and is at the leftmost position; when connected to the fourth connecting pipe 15 on the right, the length of the right chamber is greater than the length of movement of the pull rod 904, and the pull rod 904 is at the rightmost position.

[0047] Solenoid valve coils are provided on the upper and lower sides of the first spring 906. When the solenoid valve coil is not energized, the fourth connecting pipe 15 on the left is connected to the through hole 903, and the first spring 906 is in an uncompressed state. When the solenoid valve coil is energized, the current of the solenoid valve coil is adjusted, and the slider 902 moves to the right. When the current is small, the through hole 903 is not connected. When the current is large, the through hole 903 is connected to the fourth connecting pipe 15, the pull rod 904 moves to the right, and the first spring 906 is compressed. In order to ensure that the replenishment bag 13 is not connected when the dialysate bag 12 is flowing, and that the dialysate bag 12 is insufficient, and that any replenishment bag 13 is connected, it can be seen that the switching structure 9 is in an energized normally closed state.

[0048] A water flow sensor is connected in series on the second connecting pipe 702. The water flow sensor is electrically connected to the solenoid valve coil. When no dialysate is detected flowing through the second connecting pipe 702, the solenoid valve coil adjusts the current or de-energizes the slider 902 to connect with the fourth connecting pipe 15. When the water flow sensor detects dialysate flowing through the second connecting pipe 702, the slider 902 returns to its initial state.

[0049] like Figure 6 As shown, the peristaltic pump 10 includes a motor 107, a turntable 108 fixedly connected to the output shaft of the motor 107, four circumferentially arranged fixed rods 103 fixedly connected to the turntable 108, and rollers 104 and telescopic rollers 105 fixedly arranged on the turntable 108 through the fixed rods 103.

[0050] Specifically, the peristaltic pump 10 is provided with a cover plate covering the fixed roller 104 and the telescopic roller 105, the peristaltic pump 10 is fixed upside down on the bottom wall of the right chamber, the inlet end and the outlet end are arranged on the left and right positions of the cover plate, the third connecting pipe 11 fixedly connected to the bottom end left position of the shell 901 enters from the inlet end of the cover plate, and the winding roller passes out from the outlet end; the motor 107 is a variable frequency motor, which can control the rotating speed of the fixed roller 104 and the telescopic roller 105, so as to realize accurate control of the dialysis liquid; the outlet end of the peristaltic pump 10 is provided with a flow sensor, and the flow sensor is connected to the control console 3; the control console 3 controls according to the received total flow amount, and when the required dialysis liquid in the patient's body reaches a certain value, the peristaltic pump 10 stops rotating.

[0051] The diameter of the rotating disc 108 is greater than the diameter of the motor 107, the fixed rod 103 is fixed near the edge of the rotating disc 108, and the distance between the edge of the roller and the inner side surface of the cover plate is less than the diameter of the third connecting pipe 11; the length of the fixed rod 103 fixedly connected to the fixed roller 104 is greater than the length of the fixed rod 103 fixedly connected to the telescopic roller 105.

[0052] As shown in Figure 7 The telescopic roller 105 includes an outer sleeve 1051, an inner sleeve 1052, an X-shaped rod and a second spring 1056, the outer sleeve 1051 is sleeved outside the inner sleeve 1052, the upper end of the X-shaped rod is fixedly connected to the inner wall top end of the outer sleeve 1051, the lower end of the X-shaped rod is slidingly connected to the side wall of the inner sleeve 1052, the lower end of the X-shaped rod is fixedly connected with the second spring 1056, and the second spring 1056 is a tension spring.

[0053] Specifically, the X-shaped rod comprises a V-shaped rod 1053, a vertical rod 1054 and an inverted V-shaped rod 1055, the upper end of the V-shaped rod 1053 is fixed on both sides of the top wall of the outer sleeve 1051, the lower end of the inverted V-shaped rod 1055 is slidably connected to the side wall of the inner sleeve 1052, and the V-shaped rod 1053 and the inverted V-shaped rod 1055 are fixedly connected through the vertical rod 1054; in the initial position, the end of the inverted V-shaped rod 1055 abuts against the bottom wall of the inner sleeve 1052, and the outer sleeve 1051 is at the lowest point and does not contact the third connecting pipe 11; the lower end of the X-shaped rod is made of an elastic material, that is, the inverted V-shaped rod 1055, the elastic material is polyurethane material, which has good resilience and aging resistance, the intersection of the V-shaped rod 1053 is fixedly connected with a third connecting rod 106 which penetrates the shell 1, and the length of the third connecting rod 106 is greater than the length of the movement of the outer sleeve 1051; the end of the lower end of the X-shaped rod is provided with a protrusion 1057, the protrusion 1057 is semicircular, the side wall of the inner sleeve 1052 is provided with a groove 1058 matched with the protrusion 1057, and the groove 1058 is consistent with the shape of the protrusion 1057; the distance between the upper and lower grooves 1058 is the longest distance of the outer sleeve 1051, when the protrusion 1057 is clamped in the upper groove 1058, the top end of the outer surface of the outer sleeve 1051 is flush with the top end of the fixed roller 104; the bottom end of the inner sleeve 1052 is fixedly provided with a fixed hole 1059 fixed on the short fixed rod;

[0054] When it is necessary to reduce the flow of dialysate into the body at a time, the third connecting rod 106 is pulled outward, the second spring 1056 is compressed, the two ends of the inverted V-shaped rod 1055 move inward, the protrusion 1057 slides against the side wall of the inner sleeve 1052 until it is clamped in the upper groove 1058, and the second spring 1056 returns to the initial state, at this time, the number of rollers in contact with the third connecting pipe 11 increases, and the flow is reduced; by arranging the telescopic roller 105, the number of rollers in contact with the third connecting pipe 11 in the peristaltic pump 10 is increased, so that the amount of dialysate flowing out is reduced.

[0055] As shown in Figure 8 The left side of the chamber is provided with a placing plate 2, the placing plate 2 is provided with an electric heating plate 201, and the bottom end of the placing plate 2 is provided with a plurality of air holes 202 in communication with the left side of the chamber relative to the position of the electric heating plate 201; the clamping plate 7 is provided with an electric heating plate 201 for heating the liquid in the elastic water bag.

[0056] Specific, in order to better control the temperature of dialysate, temperature sensor is arranged on the upper end of the placing plate 2 and the arc surface of the clamp plate 7, and a temperature control module is arranged in the control console 3, and the temperature sensor is electrically connected with the temperature control module; when the ambient environment of the patient is in a low temperature state, the electric heating plate 201 is started to heat and keep the dialysate in the dialysate bag 12 and the elastic water bag in a constant temperature state, and the comfort of the patient during peritoneal dialysis is improved.

[0057] In the embodiment of the present application, the automatic peritoneal dialysis equipment is provided with a power module and a control console 3 with a control module, the power module is connected to the municipal power supply, the control console 3 is provided with a control operation button, the control operation button is connected to the two control modules through wires, the button is provided with buttons for operating the electric heating plate 201, the electromagnet 907 and the motor 107, and through the button control instruction, the corresponding motor 107 can be started and stopped and reversed, the electric heating plate 201 is switched on and off and the temperature is controlled, the electromagnet is powered on and off and the current size, and the connection mode and working principle of the power module, the control module, the electric heating plate 201, the electromagnet 907 and the motor 107 are all prior art, and will not be described here.

[0058] The working process of the automatic peritoneal dialysis equipment provided by the present application is as follows:

[0059] The required dialysate bag 12 and the liquid supplement bag 13 are placed on the placing plate 2 and the liquid hanging rod 6 respectively, and each connecting pipe is inserted; the peritoneal dialysis equipment is started, and each structure is automatically started according to the parameters input by the patient before; if the weather is cold, the electric heating plate 201 is started to make the dialysate reach the set temperature; according to the capacity of the dialysate flowing into the patient's body at a time, the threaded rod 802 is twisted to make the two clamp plates 7 move towards each other, and the volume of the elastic air bag is adjusted to the used position; the flow sensor on the first connecting pipe 701 is closed for the single use amount; the dialysate flows from the elastic air bag to the switching structure 9, which is not connected to the liquid supplement bag 13 at this time; the dialysate flows from the switching structure 9 to the peristaltic pump 10, if the flow of the dialysate into the body is too large to cause the patient to be uncomfortable, the third connecting rod 106 is pulled outward to increase the number of rollers in contact with the third connecting pipe 11, at this time the flow is reduced; when the flow sensor detects that the dialysate flowing into the patient's body reaches a certain value, the peristaltic pump 10 stops rotating, and the timer in the control console 3 starts timing, the third connecting pipe 11 and the connecting pipe end of the waste liquid barrel 5 are connected to the electromagnetic valve to prevent communication, the time is cut off, the electromagnetic valve of the waste liquid barrel 5 is opened, the dialysate in the abdominal cavity is discharged, and the waste liquid barrel 5 is closed; when the dialysate in the dialysate bag 12 is insufficient, the switching structure 9 is powered off or the current is increased to communicate with the fourth connecting pipe 15 on the left or right side.

[0060] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An automatic peritoneal dialysis device, comprising a housing (1) placed on a support table (4), the upper end of the housing (1) being provided with a control panel (3) and a placing plate (2) for placing a dialysate bag (12), the upper end of the housing (1) being fixed with a liquid hanging rod (6) for hanging a plurality of liquid supplement bags (13), characterized in that: the left side of the housing (1) is provided with a switching structure (9), and the connecting end of the dialysate bag (12) is inserted into the inlet end of the switching structure (9); the housing (1) is divided into left and right two chambers by a partition plate (101), the outlet end of the switching structure (9) is inserted into one end of an elastic water bag arranged in the left chamber, and the elastic water bag is provided with an adjusting structure for adjusting the capacity of the elastic water bag; the other end of the elastic water bag is in communication with the inlet end of a peristaltic pump (10) arranged in the right chamber; the outlet connecting pipeline end of the peristaltic pump (10) is in communication with the human body and a waste liquid barrel (5) through two branch pipelines respectively; the peristaltic pump (10) comprises a motor (107), a rotating disc (108) fixedly connected to the output shaft of the motor (107), four fixed rods (103) arranged in a circle on the rotating disc (108), and a plurality of fixed rollers (104) and telescopic rollers (105) arranged in an intersecting manner on the rotating disc (108) through the fixed rods (103); the telescopic roller (105) comprises an outer sleeve (1051), an inner sleeve (1052), an X-shaped rod, and a second spring (1056), the outer sleeve (1051) is sleeved outside the inner sleeve (1052), the upper end of the X-shaped rod is fixedly connected to the inner wall top end of the outer sleeve (1051), the lower end of the X-shaped rod is slidably connected to the side wall of the inner sleeve (1052), and the lower end of the X-shaped rod is fixedly connected with the second spring (1056); the lower end of the X-shaped rod is made of elastic material, the end of the lower end of the X-shaped rod is provided with a protrusion (1057), and the side wall of the inner sleeve (1052) is provided with a groove (1058) matched with the protrusion (1057). the adjusting structure comprises two clamping plates (7) and a moving structure (8) for driving the two clamping plates (7) to move towards or away from each other, and the elastic water bag is located between the two clamping plates (7). the moving structure (8) comprises a rack (801), a threaded rod (802), a connecting rod structure, and a sector gear (806), one end of the threaded rod (802) penetrates out of the housing (1), the other end of the threaded rod (802) is rotatably connected with the connecting rod structure, the end of the connecting rod structure is fixedly connected with the sector gear (806), and the sector gear (806) is engaged with the rack (801) fixed to the bottom end of the clamping plate (7). ​ ​ ​ ​ 2. The automated peritoneal dialysis apparatus according to claim 1, characterized by: ​ 3. The automated peritoneal dialysis apparatus of claim 2, wherein: ​ 4. The automated peritoneal dialysis apparatus of claim 1, wherein: The switching structure (9) includes a connecting shell (901), a sliding block (902), a pull rod (904), a baffle (905), a first spring (906) and an electromagnet (907), the connecting shell (901) is fixedly connected to the left side of the shell (1), the baffle (905) is installed in the connecting shell (901), the sliding block (902) is slidingly connected to the left side of the baffle (905), the side of the sliding block (902) close to the baffle (905) is fixedly connected with one end of the pull rod (904), the other end of the pull rod (904) penetrates through the baffle (905) and is fixedly connected with one end of the first spring (906), the other end of the first spring (906) is fixedly connected to the electromagnet (907) on the side wall of the connecting shell (901).

5. The automated peritoneal dialysis apparatus of claim 4, wherein: A fourth connecting pipe (15) connected with the liquid supplementing bag (13) is arranged on the upper surface of the connecting shell (901) relative to the left side of the baffle (905), a fifth connecting pipe (16) connected with the dialysate bag (12) is arranged on the front of the connecting shell (901), an inverted F-shaped through hole (903) is arranged in the sliding block (902), and the through hole (903) can be communicated with any one fourth connecting pipe (15) in the sliding process.

6. The automated peritoneal dialysis apparatus of claim 1, wherein: A placing plate (2) is arranged on the left side of the chamber, an electric heating plate (201) is arranged in the placing plate (2), and a plurality of air vents (202) are arranged on the bottom end of the placing plate (2) relative to the position of the electric heating plate (201) and are communicated with the left side of the chamber.

7. The automated peritoneal dialysis apparatus of claim 2, wherein: The clamping plate (7) is provided with an electric heating plate (201) for heating the liquid in the elastic water bag.

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