Automatic peritoneal dialysis equipment

Abstract

The invention belongs to the technical field of peritoneal dialysis, and provides automatic peritoneal dialysis equipment which comprises a shell placed on a supporting table, the upper end of the shell is provided with a control table and a placing plate used for placing dialysate bags, and the upper end of the shell is fixedly provided with a liquid hanging rod used for hanging a plurality of liquid supplementing bags. The interior of the shell is divided into a left cavity and a right cavity by arranging a partition plate, the connecting end of the dialysate bag is connected with one end of an elastic water bag arranged in the cavity on the left side in an inserted mode, and an adjusting structure for adjusting the capacity of the elastic water bag is arranged on the elastic water bag. The total amount of single dialysate flowing into the body can be adjusted according to the self condition of the patient; by arranging a switching structure, automatic liquid changing is carried out, and the liquid changing operation burden of a patient and nursing personnel is relieved; by arranging the peristaltic pump, the flow and the flow speed of dialysate entering the body of the patient can be adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of peritoneal dialysis, and in particular to an automatic peritoneal dialysis device. Background Art

[0002] Peritoneal dialysis is one of the treatment methods for patients with uremia. It exchanges solutes and water with the plasma components in the capillaries on the other side of the peritoneum through the dialysate infused into the peritoneal cavity, removes the metabolic products and excess water retained in the body, and replenishes the body's necessary substances through the dialysate. The purpose of kidney replacement or supportive treatment is achieved by continuously renewing the peritoneal dialysis fluid.

[0003] The existing peritoneal dialysis method is to connect the peritoneal dialysis fluid to the external catheter of the peritoneal dialysis catheter. Under the action of gravity, the peritoneal dialysis fluid enters the patient's abdomen. During use, when the patient feels uncomfortable, the flow rate of the peritoneal dialysis fluid in the external catheter and the outflow of the peritoneal dialysis fluid need to be adjusted back and forth. The existing peritoneal dialysis method cannot adjust the flow rate, flow rate and temperature of the dialysis fluid during use. The method of use is single and inconvenient for patients to use, which significantly increases the incidence of peritonitis.

[0004] There is a need to invent an automatic peritoneal dialysis device, which can adjust the single inflow volume of dialysate as well as the flow rate and flow rate of dialysate into the body according to pre-set settings, thereby reducing the operational burden on patients and caregivers and improving the quality of life of peritoneal dialysis patients. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides an automatic peritoneal dialysis device, which solves the problems raised in the above background technology.

[0006] The technical solution of the present invention is as follows:

[0007] An automatic peritoneal dialysis device comprises a shell placed on a support table, a console and a placement plate for placing a dialysis fluid bag are arranged at the upper end of the shell, and a liquid hanging rod for hanging a plurality of infusion bags is fixed at the upper end of the shell.

[0008] A switching structure is provided on the left side of the shell, and the connection end of the dialysate bag is plugged into the inlet end of the switching structure;

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

[0010] The other end of the elastic water bag is communicated with the inlet end of the peristaltic pump arranged in the right chamber; the end of the pipeline connected to the outlet of the peristaltic pump is respectively communicated with the human body and the waste liquid bucket through two branch pipelines.

[0011] Furthermore, the adjustment structure includes two clamping plates and a moving structure for driving the two clamping plates to move toward or away from each other, and the elastic water bag is located between the two clamping plates.

[0012] Furthermore, the movable structure includes a rack, a threaded rod, a connecting rod structure and a fan-shaped gear. The end of the threaded rod passes through the outer shell, the end of the threaded rod is fixedly connected to the connecting rod structure, the end of the connecting rod structure is fixedly connected to the fan-shaped gear, and the fan-shaped gear is meshed with the rack fixed at the bottom end of the splint.

[0013] Further, the switching structure includes a connecting shell, a slider, 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 slider is slidably connected to the left side of the baffle, the side of the slider close to the baffle is fixedly connected to one end of the pull rod, the other end of the pull rod passes through the baffle and is fixedly connected to one end of the first spring, and the other end of the first spring is fixedly connected to the electromagnet on the side wall of the connecting shell.

[0014] Furthermore, a fourth connecting tube connected to the fluid infusion bag is provided on the upper surface of the connecting shell relative to the left side of the baffle, a fifth connecting tube connected to the dialysate bag is provided in front of the connecting shell, and an inverted F-shaped through hole is provided in the sliding block, and the through hole can be connected to any one of the fourth connecting tubes during the sliding process.

[0015] Furthermore, the peristaltic pump comprises a motor, a turntable fixedly connected to the output shaft of the motor, four circumferentially arranged fixed rods fixedly connected to the turntable, and fixed rollers and telescopic rollers cross-arranged on the turntable via the fixed rods.

[0016] Furthermore, the telescopic roller includes an outer sleeve, an inner sleeve, an X-shaped rod and a second spring. The outer sleeve is sleeved on the outside of the inner sleeve, the upper end of the X-shaped rod is fixedly connected to the top of the inner wall of the outer sleeve, the lower end of the X-shaped rod is slidably connected to the side wall of the inner sleeve, and the lower end of the X-shaped rod is fixedly connected to the second spring.

[0017] Furthermore, the lower end of the X-shaped rod is made of elastic material, a bump is provided at the end of the lower end of the X-shaped rod, and a groove matching the bump is provided on the side wall of the inner sleeve.

[0018] Furthermore, a placement plate is provided on the left chamber, an electric heating plate is provided inside the placement plate, and a plurality of air holes are provided at the bottom end of the placement plate relative to the electric heating plate to communicate with the left chamber.

[0019] Furthermore, an electric heating plate is arranged in the clamping plate to heat the liquid in the elastic water bag.

[0020] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: by providing an adjustment structure for adjusting the capacity of the elastic water bag, the total amount of dialysate flowing into the body in a single time can be adjusted according to the patient's own situation; by providing a switching structure, automatic fluid replacement can be performed to reduce the burden of fluid replacement operations on patients and nursing staff; by providing a peristaltic pump, the flow rate and flow velocity of the dialysate entering the patient's body can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the automatic peritoneal dialysis device of the present invention;

[0022] Figure 2 is a simplified diagram of an automated peritoneal dialysis equipment system;

[0023] Figure 3 It is a schematic diagram of a transverse section of an automated peritoneal dialysis device;

[0024] Figure 4 It is a partial enlarged view of A;

[0025] Figure 5 To switch the structure;

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

[0027] Figure 7 Add structure to the roller;

[0028] Figure 8 warming structures for abdominal fluid;

[0029] In the figure: 1, shell, 101, partition plate, 102, horizontal plate, 2, placement plate, 201, electric heating plate, 202, air vent, 3, control console, 4, support table, 5, waste liquid bucket, 6, hanging liquid 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, slider, 903, through hole, 904, pull rod, 905, baffle, 906, The 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, bump, 1058, groove, 1059, fixing hole, 106, third connecting rod, 107, motor, 108, turntable, 11, third connecting tube, 12, dialysate bag, 13, infusion bag, 14, human body connecting end, 15, fourth connecting tube, 16, fifth connecting tube. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-8 An automatic peritoneal dialysis device comprises a housing 1 placed on a support table 4, a console 3 and a placement plate 2 for placing a dialysis fluid bag 12 are arranged on the upper end of the housing 1, and a liquid hanging rod 6 for hanging a plurality of infusion bags 13 is fixed on the upper end of the housing 1,

[0032] A switching structure 9 is provided on the left side of the housing 1, and the connection end of the dialysate bag 12 is plugged into the inlet end of the switching structure 9;

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

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

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

[0036] The elastic water bag is made of antibacterial and transparent material; when the elastic water bag is at its maximum volume, its diameter is smaller than the length of the left chamber. By setting an adjustment structure at the bottom end of the elastic water bag, the volume of the elastic water bag can be changed, thereby changing the capacity of the dialysate in the water bag. The larger the volume of the elastic water bag, the more dialysate is retained 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 amount of dialysate used into the elastic water bag in batches. When using it, the patient does not need to care about the total dialysis volume on the device, but only needs to adjust the capacity of the single flow into the elastic water bag and the number of flows into the elastic water bag; in order to ensure that the liquid in the elastic water bag flows out, it is necessary to replenish air in the elastic water bag in time, and a branch pipe connected to the second connecting pipe 702 connected to the outlet end of the elastic water bag is provided, and the end of the branch pipe is covered with a waterproof breathable membrane;

[0037] A flow sensor and a solenoid valve are installed on the first connecting tube 701, and both components are connected to the control console 3 for communication. The control console 3 controls the opening and closing of the solenoid valve according to the flow information fed back by the flow sensor, and controls the capacity of the elastic water bag flowing in at a single time by the control console 3. When the dialysate flowing out reaches the set value, the flow quantitative controller stops working; when the dialysate in the dialysate bag 12 is used up, the switching structure 9 is opened for automatic fluid replacement, thereby reducing the burden of fluid replacement operation on patients and nursing staff; the waste liquid barrel 5 is made of transparent material and printed with scales, which is convenient for nurses and patients to observe in time.

[0038] The connecting tubes used in the automatic peritoneal dialysis device can be plugged in and out and are disposable medical hoses; for emergency situations and use during work, a solenoid valve in the prior art is installed on each connecting tube, and the solenoid valve is electrically connected to the console 3, so that the connecting tube is no longer connected, thereby preventing the flow of dialysate;

[0039] When in use, the total inflow of dialysate, the single inflow, the number of single inflows, the flow rate and the use time are set according to the patient's own situation, and the required dialysate bag 12 and the infusion bag 13 are prepared and hung; the dialysate in the dialysate bag 12 flows into the elastic water bag, and the dialysate flows from the elastic water bag to the switching structure. At this time, the infusion bag 13 is not connected, and 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 flows into the patient's body, until the dialysate in the patient's body reaches a certain capacity, the peristaltic pump stops, and the human body connection end is closed. The connecting pipe 14 is disconnected and the solenoid valve blocks the connection, the waste liquid bucket 5 is not connected, and the timer in the console 3 starts timing. During the timing process, if the dialysate in the dialysate bag is insufficient (an infusion alarm in the prior art is set on the pipeline connected to the dialysate bag 12, and the infusion alarm is connected to the console 3. When the dialysate is insufficient, the infusion alarm sounds an alarm reminder), the switching structure 9 is started, and a certain fluid infusion bag 13 is connected to the elastic water bag. When the time expires, the solenoid valve of the waste liquid bucket 5 is opened, the solenoid valve of the main connecting pipe of the branch pipeline is closed, the dialysate in the peritoneal cavity is discharged, and the waste liquid bucket 5 is closed.

[0040] like Figure 3 and Figure 4 As shown, the adjustment structure includes two splints 7 and a moving structure 8 for driving the two splints 7 to move toward or away from each other, the elastic water bag is located between the two splints 7, the two splints 7 are symmetrically arranged, the opposite surfaces of the two splints 7 are arc-shaped structures that fit the structure of the elastic water bag, the contact positions of the splints 7 and the elastic water bag are fixed, and when the moving structure 8 moves, it drives the splints 7 to move toward or away from each other, and the volume of the elastic water bag increases or decreases.

[0041] As shown in the figure, the movable structure 8 includes a rack 801, a threaded rod 802, a connecting rod structure and a fan gear 806. One end of the threaded rod 802 passes through the outer shell 1, and the other end of the threaded rod 802 is rotatably connected to the connecting rod structure. The end of the connecting rod structure is fixedly connected to the fan gear 806, and the fan gear 806 is meshed with the rack 801 fixed at the bottom end of the splint 7.

[0042] Specifically, the rear end of the clamping plate 7 is provided with a conflicting transverse plate 102, and the trajectory of the transverse plate 102 moving relative to the clamping plate 7 is provided with a slide groove in the shape of a convex character when observed in a longitudinal section, and the rear end of the clamping plate 7 is fixedly connected with a slider in the shape of a convex character, and the rear end of the slider is fixedly connected to the rack 801; the connecting rod structure includes 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 housing 1, and the end of the threaded rod 802 is rotatably connected to the first horizontal connecting rod 803, and the two ends of the first connecting rod 803 are hinged to the hinged rod 8 04, the other end of the hinged rod 804 is hinged to one end of the second connecting rod 805, and the other end of the second connecting rod 805 is fixedly connected to the sector gear 806; the number of teeth of the rack 801 is greater than the number of teeth of the sector gear 806, so as to prevent the sector gear 806 from falling off after the engagement with the rack 801 is completed; in the initial state, the sector gear 806 is 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 through, so as to prevent the inlet pipe from being blocked during the movement;

[0043] When in use, the threaded rod 802 is rotated and screwed, and the end of the threaded rod 802 is extended. The first connecting rod 803 moves toward the horizontal plate 102 as the threaded rod 802 is extended, and the ends of the hinged rods 804 connected on both sides of the first connecting rod 803 are tilted upward and move toward the front at the same time. At this time, the hinge point of the second connecting rod 805 and the hinged rod 804 is the center of the circle, the second connecting rod rotates, and the fan gear rotates clockwise or counterclockwise to mesh with the rack, driving the two side splints 7 to move toward or away from each other at the same time; by setting a movable structure 8 on the splint 7, the splint 7 can drive the elastic water bag to move, thereby changing its single-use dialysate capacity.

[0044] like Figure 5 As shown, the switching structure 9 includes a connecting shell 901, a slider 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 housing 1, the baffle 905 is installed in the connecting shell 901, the slider 902 is slidably connected to the left side of the baffle 905, the side of the slider 902 close to the baffle 905 is fixedly connected to one end of the pull rod 904, the other end of the pull rod 904 passes through the baffle 905 and is fixedly connected to one end of the first spring 906, 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 tube 15 connected to the fluid infusion bag 13 is provided on the upper surface of the connecting shell 901 relative to the left side of the baffle 905, and a fifth connecting tube 16 connected to the dialysate bag 12 is provided in front of the connecting shell 901. The fourth connecting tube 15 and the fifth connecting tube 16 both serve as the inlet end of the switching structure 9. An inverted F-shaped through hole 903 is provided in the slider 902, and the two transverse through holes of the through hole 903 face the left side. During the sliding process, the through hole 903 can be connected to any one of the fourth connecting tubes 15.

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

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

[0048] A water flow sensor is connected in series to the second connecting tube 702, and the water flow sensor is electrically connected to the solenoid valve coil. When no dialysate is detected flowing through the second connecting tube 702, the solenoid valve coil adjusts the current or cuts off the power to connect the slider 902 to the fourth connecting tube 15. When the water flow sensor detects that dialysate is flowing through the second connecting tube 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 fixed rollers 104 and telescopic rollers 105 cross-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 inverted and fixed on the bottom wall of the right chamber. The inlet and outlet ends are opened at the left and right positions on the cover plate. The third connecting pipe 11 fixedly connected to the left position of the bottom end of the connecting shell 901 enters from the inlet end of the cover plate and passes through the outlet end after being wound around the roller. The motor 107 adopts a variable frequency motor, which can control the rotation speed of the fixed roller 104 and the telescopic roller 105, so as to realize precise control of the dialysate. The outlet end of the peristaltic pump 10 is provided with a flow sensor, which is connected to the console 3 at the same time and is controlled by the console 3 according to the total flow amount received. When the dialysate required in the patient's body reaches a certain value, the peristaltic pump 10 stops rotating.

[0051] The diameter of the turntable 108 is larger than the diameter of the motor 107, the fixed rod 103 is fixed near the edge of the turntable 108, the distance between the edge of the roller and the inner surface of the cover plate is smaller than the diameter of the third connecting tube 11; the fixed rod 103 fixedly connected to the fixed roller 104 is longer than the length of the fixed rod 103 fixedly connected to the telescopic roller 105.

[0052] like Figure 7 As shown, 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 on the outside of the inner sleeve 1052, the upper end of the X-shaped rod is fixedly connected to the top of the inner wall 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 to the second spring 1056, which is a tension spring.

[0053] Specifically, the X-shaped rod includes a V-shaped rod 1053, a vertical rod 1054 and an inverted V-shaped rod 1055. The upper ends of the V-shaped rod 1053 are fixed on both sides of the top wall of the outer sleeve 1051, and the lower ends of the inverted V-shaped rod 1055 are slidably connected to the side walls of the inner sleeve 1052. The V-shaped rod 1053 and the inverted V-shaped rod 1055 are fixedly connected through the vertical rod 1054. When 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 an elastic material, that is, the inverted V-shaped rod 1055. The elastic material is made of polyurethane material, which has good resilience and aging resistance. The third connecting rod 106 fixedly connected at the fork point penetrates the outer 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, and the protrusion 1057 is semicircular, and the side wall of the inner sleeve 1052 is provided with a groove 1058 matched with the protrusion 1057, and the shape of the groove 1058 is consistent with that of the protrusion 1057; the distance between the upper and lower grooves 1058 is the longest distance that the outer sleeve 1051 extends, and when the protrusion 1057 is clamped in the groove 1058 on the upper side, the top of the outer surface of the outer sleeve 1051 is flush with the top of the fixed roller 104; the fixing hole 1059 provided at the bottom end of the inner sleeve 1052 is fixed on the short fixing rod;

[0054] When it is necessary to reduce the flow rate of dialysate entering the body at a single time, the third connecting rod 106 is pulled outward, the second spring 1056 is compressed, and 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 engaged in the groove 1058 on the upper side. The second spring 1056 returns to its initial state. At this time, the number of rollers increases and the flow rate decreases. By setting the telescopic roller 105, the number of rollers in the peristaltic pump 10 is increased, thereby reducing the outflow of dialysate.

[0055] like Figure 8 As shown, a placement plate 2 is provided on the left chamber, an electric heating plate 201 is provided inside the placement plate 2, and a plurality of air holes 202 are provided at the bottom end of the placement plate 2 relative to the electric heating plate 201 to communicate with the left chamber; an electric heating plate 201 for heating the liquid in the elastic water bag is provided inside the splint 7.

[0056] Specifically, in order to better control the temperature of the dialysate, a temperature sensor is arranged on the upper end of the placement plate 2 and the curved surface of the splint 7, a temperature control module is arranged in the console 3, and the temperature sensor is electrically connected to the temperature control module; when the patient's surrounding environment is in a low temperature state, the electric heating plate 201 is started to heat the dialysate bag 12 and the dialysate in the elastic water bag and maintain a constant temperature state, thereby improving the comfort of the patient during peritoneal dialysis.

[0057] In the specific implementation of the present invention, the automatic peritoneal dialysis device is provided with a power module and a console 3 with a control module, the power module is connected to the municipal power supply, and a control operation button is provided at the console 3, the control operation button is connected to the two control modules by wires, and the button is configured with a button for operating the electric heating plate 201, the electromagnet 907, and the motor 107. Through the button control instructions, the corresponding motor 107 can start and stop operation and reverse, the switch and temperature of the electric heating plate 201 are controlled, the electromagnet is powered on and stopped, and the current size is increased. The connection method and working principle of the power module, the control module, the electric heating plate 201, the electromagnet 907, and the motor 107 are all existing technologies and will not be repeated here.

[0058] The working process of an automatic peritoneal dialysis device provided by the present invention is as follows:

[0059] Place the required dialysate bag 12 and infusion bag 13 on the placement plate 2 and the liquid hanging rod 6 respectively, and connect all the connecting tubes; start the peritoneal dialysis equipment, and all the structures are automatically started according to the parameters previously input by the patient; if the weather is cold, start the electric heating plate 201 to make the dialysate reach the set temperature; according to the volume of dialysate that flows into the patient's body at a time, turn the threaded rod 802 to make the two clamps 7 move towards each other, and adjust the volume of the elastic airbag to the used position; the flow sensor on the first connecting tube 701 is closed when the flow of single use is turned on; the dialysate flows from the elastic airbag to the switching structure 9, and is not connected to the infusion bag 13 at this time; the dialysate flows from the switching structure 9 to the switching structure 9, and is not connected to the liquid hanging rod 13 at this time; the dialysate flows from the switching structure 9 to the switching structure 9, and is not connected to the liquid hanging rod 13 at this time; the dialysate flows from the switching structure 9 to the switching structure 9, and is not connected to the liquid hanging rod 13 at this time. The dialysate flows to the peristaltic pump 10 through the switching structure 9. If the dialysate flow rate entering the body is too large and causes discomfort to the patient, the third connecting rod 106 is pulled outward to increase the number of rollers, and the flow rate is reduced at this time; the flow sensor detects that the dialysate flowing into the patient's body reaches a certain value, the peristaltic pump 10 stops rotating, the timer in the console 3 starts timing, the extended end of the third connecting tube 11 and the connecting tube end of the waste liquid bucket 5 are connected to the solenoid valve to prevent connection, the time expires, the solenoid valve of the waste liquid bucket 5 opens, the dialysate in the abdominal cavity is discharged, and the waste liquid bucket 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 connect with the fourth connecting tube 15 on the left or right side.

[0060] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic peritoneal dialysis device, comprising a housing (1) placed on a support table (4), a console (3) and a placement plate (2) for placing a dialysate bag (12) are arranged at the upper end of the housing (1), and a liquid hanging rod (6) for hanging a plurality of infusion bags (13) is fixed at the upper end of the housing (1), characterized in that: A switching structure (9) is provided on the left side of the housing (1), and the connection end of the dialysate bag (12) is plugged into the inlet end of the switching structure (9); The housing (1) is divided into two left and right chambers by a partition plate (101), the outlet end of the switching structure (9) is plugged into one end of an elastic water bag arranged in the left chamber, and the elastic water bag is provided with an adjustment structure for adjusting its capacity; The other end of the elastic water bag is connected to the inlet end of a peristaltic pump (10) disposed in the right chamber; the end of the pipeline connected to the outlet of the peristaltic pump (10) is connected to the human body and the waste liquid bucket (5) respectively through two branch pipelines.

2. The automatic peritoneal dialysis device according to claim 1, characterized in that: The adjustment 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).

3. The automatic peritoneal dialysis device according to claim 2, characterized in that: The movable 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) passes through the housing (1), the other end of the threaded rod (802) is rotatably connected to the connecting rod structure, the end of the connecting rod structure is fixedly connected to the sector gear (806), and the sector gear (806) is meshed with the rack (801) fixed at the bottom end of the clamping plate (7).

4. The automatic peritoneal dialysis device according to claim 1, characterized in that: The switching structure (9) comprises a connecting shell (901), a slider (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 outer shell (1); the baffle (905) is installed in the connecting shell (901); the slider (902) is slidably connected to the left side of the baffle (905); the side of the slider (902) close to the baffle (905) is fixedly connected to one end of the pull rod (904); the other end of the pull rod (904) passes through the baffle (905) and is fixedly connected to 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 automatic peritoneal dialysis device according to claim 4, characterized in that: A fourth connecting tube (15) connected to the infusion bag (13) is provided on the upper surface of the connecting shell (901) relative to the left side of the baffle (905), and a fifth connecting tube (16) connected to the dialysate bag (12) is provided in front of the connecting shell (901). An inverted F-shaped through hole (903) is provided in the sliding block (902), and the through hole (903) can be connected to any one of the fourth connecting tubes (15) during the sliding process.

6. The automatic peritoneal dialysis device according to claim 1, characterized in that: The peristaltic pump (10) comprises 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 fixed rollers (104) and telescopic rollers (105) arranged crosswise on the turntable (108) via the fixed rods (103).

7. The automatic peritoneal dialysis device according to claim 6, characterized in that: 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 on the outside of the inner sleeve (1052); the upper end of the X-shaped rod is fixedly connected to the top of the inner wall 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 to the second spring (1056).

8. The automatic peritoneal dialysis device according to claim 7, characterized in that: The lower end of the X-shaped rod is made of elastic material, a protrusion (1057) is provided at the end of the lower end of the X-shaped rod, and a groove (1058) matching with the protrusion (1057) is provided on the side wall of the inner sleeve (1052).

9. The automatic peritoneal dialysis device according to claim 1, characterized in that: A placement plate (2) is arranged on the left chamber, an electric heating plate (201) is arranged inside the placement plate (2), and a plurality of air holes (202) are arranged at the bottom end of the placement plate (2) relative to the electric heating plate (201) and connected to the left chamber.

10. The automatic peritoneal dialysis device according to claim 2, characterized in that: An electric heating plate (201) for heating the liquid in the elastic water bag is arranged inside the clamping plate (7).

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