Peritoneal dialysis solution accumulation metering device

Abstract

The peritoneal dialysis solution accumulation metering device comprises a transparent outer tube, a fixing assembly, an inner tube, an opening and closing mechanism and an accumulation counter, and a liquid outlet tube is arranged at the bottom end of the outer tube; the fixing assembly is used for connecting and fixing the outer pipe and an external fixing piece; the inner tube is arranged in the outer tube, fixed to the top end of the outer tube and used for temporarily storing dialysate, the outer tube comprises a tube body and a bottom plate capable of being opened, the volume of the inner tube is smaller than that of the lower portion of the outer tube, and a liquid inlet tube extending out of the outer tube is arranged at the top end of the inner tube. The opening and closing mechanism is connected with the bottom plate, is used for driving the bottom plate to cover the bottom of the tube body, can drive the bottom plate to be opened when dialysate in the inner tube reaches a preset liquid level, and can drive the bottom plate to be closed again after the dialysate completely flows out; the accumulative counter comprises a transmission assembly in motion linkage with the bottom plate and an identification belt with numbers, and the identification belt is driven to display accumulative numerical values in a stepping mode through each opening and closing action. The peritoneal dialysis solution accumulation metering device can accurately record the total amount of dialysis solution in real time.

Description

Technical Field

[0001] The present invention specifically relates to a peritoneal dialysis fluid cumulative metering device. Background Art

[0002] As one of the main alternative treatment methods for end-stage renal disease (ESRD), peritoneal dialysis focuses on removing metabolic wastes and regulating fluid balance through solute exchange between peritoneal dialysis fluid in the abdominal cavity and peritoneal capillaries. In recent years, with the popularization of automated peritoneal dialysis systems (APD), the efficiency and safety of the dialysis process have been significantly improved. For example, the infusion volume of dialysis fluid, drainage time, and temperature monitoring are controlled through preset programs. However, in the scenarios of large-volume peritoneal dialysis or treatment interruption, the existing technologies still have the following limitations:

[0003] 1. Insufficient real-time cumulative metering: Traditional devices mostly rely on static records of single infusion volumes (such as scales or liquid level sensors), but they cannot dynamically accumulate the total input volume after multiple interruptions, making it difficult for doctors to accurately evaluate the net fluid balance in patients' bodies.

[0004] 2. The contradiction between automation and accuracy: Although existing automated systems can achieve precise control of single operation processes, when there are frequent interruptions or discontinuous treatments, the actual total input volume of dialysis fluid needs to be manually accumulated, which is prone to introducing errors. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technologies, the technical problem to be solved by the present invention is to provide a peritoneal dialysis fluid cumulative metering device that can record the total amount of dialysis fluid in real time and accurately, which is of great significance for the refined management of critically ill patients; at the same time, its design also ensures the convenience and accuracy of use, and can automatically complete the metering task without interrupting the dialysis process.

[0006] To achieve the above object, the present invention is implemented through the following technical solutions: A peritoneal dialysis fluid cumulative metering device, comprising:

[0007] An outer tube, a liquid outlet pipe is provided at the bottom end of the outer tube, and the outer tube is a transparent body;

[0008] A fixing component, fixed on the outer tube, for connecting and fixing the outer tube with an external fixing member;

[0009] An inner tube, arranged inside the outer tube and fixed at the top end of the outer tube, for temporarily storing dialysis fluid. The outer tube includes a tube body and a bottom plate that can be opened. The volume of the inner tube is smaller than the volume of the lower part of the outer tube, and a liquid inlet pipe extending to the outside of the outer tube is provided at the top end of the inner tube;

[0010] an opening and closing mechanism connected to the bottom plate, used to drive the bottom plate to cover the bottom of the tube body, and to drive the bottom plate to open when the dialysate in the inner tube reaches a preset liquid level, and to drive the bottom plate to close again after the dialysate has completely flowed out; and

[0011] The cumulative counter comprises a transmission component linked to the movement of the bottom plate and a marking belt with numbers. Each opening and closing action drives the marking belt to step and display the cumulative value.

[0012] Furthermore, the opening and closing mechanism includes a floating plate, a guide rod, a first stopper, an elastic support member, a trigger, and a first magnetic member and a second magnetic member. The floating plate is arranged in the tube body, the guide rod vertically penetrates the bottom plate, the first stopper is arranged at the bottom end of the guide rod, the elastic support sleeve is arranged on the guide rod and supported between the bottom plate and the first stopper, and the supporting force of the elastic support member is greater than or equal to the sum of the gravity of the bottom plate and the dialysate in the inner tube, the first magnetic member is embedded in the bottom plate, the second magnetic member is fixed on the top of the tube body, the second magnetic member is an electromagnetic component, and the trigger is arranged on the floating plate. When the floating plate floats to a preset position, the trigger can trigger the second magnetic member to generate the same magnetism as the bottom plate, thereby generating a repulsive force to drive the bottom plate to open.

[0013] Furthermore, the trigger includes a pressing block, and the switch of the second magnetic member is a pressure switch, and when the pressing block presses the switch, the second magnetic member is energized.

[0014] Furthermore, the transmission assembly includes a winder and a toggle member, there are two winders, the two winders are arranged with an upper and lower interval, the two ends of the identification tape are wound on the winders, the winder can pay out the wire under tension and reel in the wire under winding force, the toggle member is arranged on the bottom plate, and can drive the identification tape to step and display the accumulated value each time the bottom plate opens and closes.

[0015] Furthermore, the wire winder includes a wire winding rod and a spiral elastic sheet, the wire winding rod is rotatably arranged on the fixed assembly, the spiral elastic sheet is sleeved on both ends of the wire winding rod, the inner end and the outer end of the spiral elastic sheet are respectively fixedly connected to the wire winding rod and the outer tube, and the end of the identification band is wound around the wire winding rod.

[0016] Furthermore, the toggle member includes a first toggle tooth, a toggle rod and a second toggle tooth. A plurality of the first toggle teeth are evenly spaced along the length direction of the identification tape facing the toggle member. The toggle rod is vertically disposed on the bottom plate. There are a plurality of second toggle teeth, and a plurality of the second toggle teeth are spaced along the toggle rod. The second toggle teeth can engage with the first toggle teeth. The second toggle teeth include a push rod and a second stop block. The push rod is hinged to the toggle rod. The second stop block is fixed to the toggle rod and supported on the bottom surface of the push rod so that the push rod is in a horizontal state.

[0017] Furthermore, the cumulative counter also includes a return member, which can be slidably inserted into the outer tube from the outside, and the identification band can slide through the return member, and the first toggle tooth and the second toggle tooth can be disengaged by pulling the return member outward.

[0018] Furthermore, the outer tube is provided with scales along its height direction.

[0019] Furthermore, the supporting force of the elastic supporting member is set to be greater than or equal to the sum of the deadweight of the bottom plate and the weight of the inner tube fully loaded with dialysate.

[0020] Beneficial effects of the present invention:

[0021] When the above-mentioned peritoneal dialysis fluid cumulative metering device is used: the dialysis fluid is injected into the inner tube through the liquid inlet tube, and the liquid level rises to the preset liquid level to trigger the action of the opening and closing mechanism. After the bottom plate is opened, the dialysis fluid flows into the outer tube for temporary storage; after the drainage is completed, the bottom plate is reset, and the cumulative counter synchronously steps and counts. During the dialysis process, medical staff can know the total dialysis volume by the accumulated value of the cumulative count. Through this device, the total amount of dialysis fluid can be recorded in real time and accurately, which is of great significance for the refined management of critically ill patients; at the same time, its design also ensures the convenience and accuracy of use, and can automatically complete the metering task without interrupting the dialysis process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation of the present invention, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0023] Figure 1 A schematic diagram of a peritoneal dialysis fluid accumulation and metering device provided by one embodiment of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of a peritoneal dialysis fluid accumulation and metering device shown is a state in which the bottom plate is opened;

[0025] Figure 3For Figure 1 A partial schematic view of the position A in a peritoneal dialysis fluid cumulative metering device as shown;

[0026] Figure 4 For Figure 1 A schematic view of the state when the toggle rod descends in a peritoneal dialysis fluid cumulative metering device as shown;

[0027] Figure 5 For Figure 1 A partial schematic view of the position B in a peritoneal dialysis fluid cumulative metering device as shown;

[0028] Reference numerals:

[0029] 100, outer tube; 110, liquid outlet tube; 200, fixing assembly; 300, inner tube; 310, tube body; 320, bottom plate; 330, liquid inlet tube; 400, opening and closing mechanism; 410, floating plate; 420, guide rod; 430, first stop block; 440, elastic support member; 450, trigger; 460, first magnetic member; 470, second magnetic member; 500, cumulative counter; 510, transmission assembly; 511, winding device; 5111, winding rod; 5112, spiral elastic sheet; 512, toggling member; 5121, first toggling tooth; 5122, toggle rod; 5123, second toggling tooth; 520, identification tape. Detailed implementation manners

[0030] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementations disclosed below.

[0031] Please refer to Figures 1 to 5 , the present invention provides a peritoneal dialysis fluid cumulative metering device, including a transparent outer tube 100, a fixing assembly 200, an inner tube 300, an opening and closing mechanism 400 and a cumulative counter 500.

[0032] Specifically, a liquid outlet pipe 110 is provided at the bottom end of the outer tube 100, and the outer tube 100 is a transparent body; the fixing assembly 200 is fixed on the outer tube 100 and is used to connect and fix the outer tube 100 to an external fixing member. In specific implementation, the fixing assembly 200 can be in the form of glue, bolt connection assembly, splint, etc., and the fixing positions can be walls, the main body of a dialysis machine, a bed board, etc. The inner tube 300 is arranged inside the outer tube 100 and is fixed at the top end of the outer tube 100 for temporarily storing dialysis fluid. The outer tube 100 includes a tube body 310 and a bottom plate that can be opened. The volume of the inner tube 300 is smaller than the volume of the lower part of the outer tube 100, and a liquid inlet pipe 330 extending to the outside of the outer tube 100 is provided at the top end of the inner tube 300.

[0033] The opening and closing mechanism 400 is connected to the bottom plate and is used to drive the bottom plate to cover the bottom of the tube body 310, and can drive the bottom plate to open when the dialysis fluid in the inner tube 300 reaches a preset liquid level, and drive the bottom plate to close again after the dialysis fluid completely flows out. The cumulative counter 500 includes a transmission assembly 510 linked to the movement of the bottom plate and an identification tape 520 with numbers. Each opening and closing action drives the identification tape 520 to stepwise display the cumulative value.

[0034] During use: The dialysis fluid is injected into the inner tube 300 through the liquid inlet pipe 330. When the liquid level rises to the preset liquid level, the opening and closing mechanism 400 is triggered to act. After the bottom plate is opened, the dialysis fluid flows into the outer tube 100 for temporary storage; after the liquid discharge is completed, the bottom plate resets, and the cumulative counter 500 synchronously steps and counts. During dialysis, medical staff can know the total amount of dialysis through the cumulative value accumulated by the cumulative counting.

[0035] In this embodiment, the opening and closing mechanism 400 includes a floating plate 410, a guide rod 420, a first stop block 430, an elastic support member 440, a trigger 450, a first magnetic member 460, and a second magnetic member 470. The floating plate 410 is arranged inside the tube body 310. The guide rod 420 vertically penetrates the bottom plate. The first stop block 430 is arranged at the bottom end of the guide rod 420. The elastic support member 440 is sleeved on the guide rod 420 and supports between the bottom plate and the first stop block. And the supporting force of the elastic support member 440 is greater than or equal to the sum of the gravity of the bottom plate and the dialysis fluid in the inner tube 300. The first magnetic member 460 is embedded in the bottom plate, and the second magnetic member 470 is fixed at the top of the tube body 310. The second magnetic member 470 is an electromagnetic assembly. The trigger 450 is arranged on the floating plate 410. When the floating plate 410 floats to a preset position, the trigger 450 can trigger the second magnetic member 470 to generate the same magnetism, thereby generating a repulsive force to drive the bottom plate to open.

[0036] Specifically, the trigger 450 includes a pressing block, and the switch of the second magnetic member 470 is a pressure switch. When the pressing block presses the switch, the second magnetic member 470 is powered on.

[0037] When in use: When the liquid level in the inner tube 300 reaches a preset height, the floating plate 410 floats up to trigger the pressure block to press the switch of the second magnetic member 470. The second magnetic member 470 is energized to generate a magnetic field with the same polarity as the first magnetic member 460. The magnetic repulsion overcomes the force of the elastic support member 440 (F≥W 1 +W 2 ) drives the bottom plate to move the valve open.

[0038] In a specific implementation, the pressing block of the trigger 450 can be made of silicone material, and the contact surface with the pressure switch of the second magnetic member 470 can be designed to be arc-shaped.

[0039] In this embodiment, the wire winder 511 includes a wire winding rod 5111 and a spiral elastic sheet 5112. The wire winding rod 5111 is rotatably arranged on the fixed assembly 200. The spiral elastic sheets 5112 are sleeved on both ends of the wire winding rod 5111. The inner end and the outer end of the spiral elastic sheet 5112 are respectively fixedly connected to the wire winding rod 5111 and the outer tube 100. The end of the identification tape 520 is wound around the wire winding rod 5111. When in use, when the digital tooth 520 on the winding rod 5111 is pulled outward, the winding rod 5111 rotates and drives the spiral elastic sheet 5112 to tighten. When the toggle member 512 includes a first toggle tooth 5121, a toggle rod 5122 and a second toggle tooth 5123, a plurality of first toggle teeth 5121 are evenly spaced along the length direction of the identification tape 520 facing the toggle member 512. The toggle rod 5122 is vertically arranged on the bottom plate. There are a plurality of second toggle teeth 5123, and the plurality of second toggle teeth 5123 are spaced along the toggle rod 5122. The second toggle teeth 5123 can engage with the first toggle teeth 5121. The second toggle teeth 5123 include a push rod and a second stop block. The push rod is hinged to the toggle rod 5122. The second stop block is fixed to the toggle rod 5122 and supported on the bottom surface of the push rod so that the push rod is in a horizontal state.

[0040] During use, when the bottom plate moves downward, the second toggle tooth 5123 pushes against the first toggle tooth 5121 to make the marking belt 520 move in one direction; when resetting, the push rod rotates around the hinge point to avoid, realize anti-backward locking, and thus realize the accumulation of quantity.

[0041] As a preferred embodiment, the cumulative counter 500 also includes a return member 530, which can be slidably inserted into the outer tube from the outside, and the identification band 520 can slide through the return member 530. Pulling the return member 530 outward can disengage the first toggle tooth 5121 from the second toggle tooth 5122.

[0042] After dialysis is completed, the marking belt 520 can be pulled by the return member 530 to disengage the first shifting tooth 5121 from the second shifting tooth 5122. Under the action of the two spiral elastic sheets, the two winding rods 5111 automatically rotate, and the marking belt 520 can be driven to automatically recover and be ready for next use.

[0043] In addition, in a specific implementation, a scale may be provided on the outer tube 100 along its height direction to facilitate observation of the amount of liquid in the inner tube 300. In addition, in a specific implementation, the support force of the elastic support member 440 should be set to be greater than or equal to the sum of the weight of the bottom plate and the weight of the inner tube 300 fully loaded with dialysate to ensure that the bottom plate can be stably opened under the magnetic repulsion.

[0044] The use of the above peritoneal dialysis fluid cumulative metering device is as follows:

[0045] When in use, the outer tube 100 is first fixed by the fixing assembly 200, and the whole device is ensured to be vertically downward, then the liquid inlet pipe 330 is connected with the dialysis tube close to the peritoneal dialysis main body, and the liquid outlet pipe 110 is connected with the dialysis tube close to the human body side, and then the peritoneal dialysis main body starts dialysis. When in use, the dialysate from the peritoneal dialysis main body side first enters the inner tube 300, and the floating plate 410 gradually floats up. When it reaches a predetermined height, the pressing block presses the switch to energize the second magnetic member 470, drive the bottom plate to open, and the liquid in the inner tube 300 flows into the outer tube 100, and then flows into the human body through the dialysis tube. At the same time, the first toggle tooth 5121 toggle the second toggle tooth 5123, drive the identification belt 520 to step one grid, and then the elastic support member 440 drives the bottom plate to recover, and close the bottom of the inner tube 300 again, and repeat the above actions until the dialysis is completed. After the dialysis is completed, the total dialysate intake can be counted by observing the accumulated number on the digital tape 520, thereby achieving the purpose of accurate dialysis.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A peritoneal dialysis fluid cumulative metering device, characterized in that: include: An outer tube, wherein a liquid outlet pipe is disposed at the bottom end of the outer tube, and the outer tube is a transparent body; A fixing assembly, fixed on the outer tube, used to connect and fix the outer tube to an external fixing member; An inner tube, arranged inside the outer tube and fixed at the top of the outer tube, for temporarily storing dialysate, the outer tube comprising a tube body and an openable bottom plate, the volume of the inner tube being smaller than the volume of the lower portion of the outer tube, and the top of the inner tube being provided with a liquid inlet tube extending to the outside of the outer tube; an opening and closing mechanism, connected to the bottom plate, used to drive the bottom plate to cover the bottom of the tube body, and to drive the bottom plate to open when the dialysate in the inner tube reaches a preset liquid level, and to drive the bottom plate to close again after the dialysate has completely flowed out; and The cumulative counter comprises a transmission component linked to the movement of the bottom plate and a marking belt with numbers. Each opening and closing action drives the marking belt to step and display the cumulative value.

2. The peritoneal dialysis fluid cumulative metering device according to claim 1, characterized in that: The opening and closing mechanism includes a floating plate, a guide rod, a first stopper, an elastic support member, a trigger, a first magnetic member and a second magnetic member. The floating plate is arranged in the tube body, the guide rod vertically penetrates the bottom plate, the first stopper is arranged at the bottom end of the guide rod, the elastic support sleeve is arranged on the guide rod and supported between the bottom plate and the first stopper, and the supporting force of the elastic support member is greater than or equal to the sum of the gravity of the bottom plate and the dialysate in the inner tube, the first magnetic member is embedded in the bottom plate, the second magnetic member is fixed on the top of the tube body, the second magnetic member is an electromagnetic component, and the trigger is arranged on the floating plate. When the floating plate floats to a preset position, the trigger can trigger the second magnetic member to generate the same magnetism as the bottom plate, thereby generating a repulsive force to drive the bottom plate to open.

3. The peritoneal dialysis fluid cumulative metering device according to claim 2, characterized in that: The trigger comprises a pressing block, and the switch of the second magnetic member is a pressure switch. When the pressing block presses the switch, the second magnetic member is energized.

4. The peritoneal dialysis fluid cumulative metering device according to claim 1, characterized in that: The transmission assembly includes a winder and a toggle member. There are two winders, which are spaced apart from each other. Both ends of the identification tape are wound around the winders. The winder can unwind the wire under tension and rewind the wire under winding force. The toggle member is arranged on the bottom plate and can drive the identification tape to step and display the accumulated value each time the bottom plate opens and closes.

5. The peritoneal dialysis fluid cumulative metering device according to claim 4, characterized in that: The wire winder includes a wire winding rod and a spiral elastic sheet. The wire winding rod is rotatably arranged on the fixed assembly. The spiral elastic sheets are sleeved on both ends of the wire winding rod. The inner end and the outer end of the spiral elastic sheet are respectively fixedly connected to the wire winding rod and the outer tube. The end of the identification tape is wound around the wire winding rod.

6. The peritoneal dialysis fluid cumulative metering device according to claim 4, characterized in that: The toggle member includes a first toggle tooth, a toggle rod and a second toggle tooth. A plurality of the first toggle teeth are evenly spaced along the length direction of the identification tape facing the toggle member. The toggle rod is vertically disposed on the bottom plate. There are a plurality of second toggle teeth, and a plurality of the second toggle teeth are spaced along the toggle rod. The second toggle teeth can engage with the first toggle teeth. The second toggle teeth include a push rod and a second stop block. The push rod is hinged to the toggle rod. The second stop block is fixed to the toggle rod and supported on the bottom surface of the push rod so that the push rod is in a horizontal state.

7. The peritoneal dialysis fluid cumulative metering device according to claim 6, characterized in that: The cumulative counter also includes a return member, which can be slidably inserted into the outer tube from the outside, and the identification belt can slide through the return member. Pulling the return member outward can disengage the first toggle tooth from the second toggle tooth.

8. The peritoneal dialysis fluid cumulative metering device according to claim 1, characterized in that: The outer tube is provided with scales along its height direction.

9. The peritoneal dialysis fluid cumulative metering device according to claim 2, characterized in that: The supporting force of the elastic supporting member is set to be greater than or equal to the sum of the deadweight of the bottom plate and the weight of the inner tube fully loaded with dialysate.

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