An automatic liquid changing device for peritoneal dialysis

Abstract

The application discloses an automatic liquid changing device for peritoneal dialysis, which comprises a base, a machine body, a control console and a sealing cover. The device uses a water pump to send the dialysis liquid in the containing bin to the patient's abdominal cavity through two connecting pipes to complete the automatic liquid changing function. When the connecting pipe extracts the dialysis liquid, the dialysis liquid moves upwards along the embedded head, opens the opening and closing sheet, and enters the extraction block. Part of the dialysis liquid enters the upward pipe, and the other part passes through the blocking side wing, so that the dialysis liquid is pushed to move upwards and be extracted. After the dialysis is completed, the dialysis liquid is no longer extracted, and part of the dialysis liquid flows downwards under the action of gravity, so that the resistance of falling is increased through the one-way groove, the blocking side wing is reattached to the inner wall of the extraction head, the blocking ball closes the upward groove, and thus the part of the dialysis liquid is prevented from reentering the patient's body due to gravity.

Description

TECHNICAL FIELD

[0001] The present application relates to the medical field, in particular to an automatic liquid changing device for peritoneal dialysis. BACKGROUND

[0002] Peritoneal dialysis is to send the prepared dialysis liquid into the abdominal cavity of the patient through the characteristics of the peritoneum, remove the metabolic waste in the body through the osmotic effect and diffusion effect, and obtain good waste removal effect by continuously replacing the dialysis liquid. The operation method is simpler than other therapies. During peritoneal dialysis, an automatic liquid changing device is needed to continuously pour and extract the dialysis liquid, so as to continuously replace the dialysis liquid and remove the metabolic waste. However, during the dialysis liquid replacement process of the high-level paralyzed patient, the high-level paralyzed patient can only lie flat, so when the input pipe and the output pipe are inserted, they are perpendicular to the patient's abdomen. After the dialysis liquid replacement process is completed, because the water suction pipe is perpendicular to the patient's abdomen, a part of the dialysis liquid is easily sucked back into the abdominal cavity due to the gravity and the pressure difference in the abdominal cavity at the moment when the liquid replacement is completed. Additional means are needed to remove it, otherwise it is easy to cause the accumulation of liquid. SUMMARY

[0003] In view of the above problem that during the dialysis liquid replacement process of the high-level paralyzed patient, the high-level paralyzed patient can only lie flat, so when the input pipe and the output pipe are inserted, they are perpendicular to the patient's abdomen. After the dialysis liquid replacement process is completed, because the water suction pipe is perpendicular to the patient's abdomen, a part of the dialysis liquid is easily sucked back into the abdominal cavity due to the gravity and the pressure difference in the abdominal cavity at the moment when the liquid replacement is completed. Additional means are needed to remove it, otherwise it is easy to cause the accumulation of liquid, the present application provides an automatic liquid changing device for peritoneal dialysis.

[0004] In order to achieve the above purpose, the present application is realized by the following technical scheme: an automatic liquid changing device for peritoneal dialysis, the structure thereof comprises a base, a machine body, a control console, a sealing cover, the bottom surface of the machine body is welded and connected with the top surface of the base, the left side of the control console is embedded in the right side of the machine body, and the bottom surface of the sealing cover is movably connected with the top surface of the machine body; the machine body comprises a containing bin, a water pump, a permeation sheet and a connecting pipe, the right side of the containing bin is fixedly connected with the left side of the control console, the water pump is embedded in the left side of the containing bin, the permeation sheet is fixedly connected with the inner layer of the containing bin, and the top surface of the connecting pipe is connected with the inner layer of the containing bin and is fixedly connected; the permeation sheet is provided with two, and the gaps between the two permeation sheets are evenly distributed in the inner layer of the containing bin.

[0005] Further, the connecting pipe comprises a conveying pipe, a one-way groove and an embedded head, the top surface of the conveying pipe is connected with the bottom surface of the containing bin through embedded connection, the one-way groove is integrally formed with the inner layer of the conveying pipe, and the top surface of the embedded head is connected with the bottom surface of the conveying pipe through embedded connection.

[0006] Further, the embedded head comprises a drawing head, a one-way head, an opening and closing sheet and a drawing block, the top surface of the drawing head is connected with the bottom surface of the conveying pipe through embedded connection, the left side of the one-way head is embedded in the inner layer of the drawing head, the top of the opening and closing sheet is movably clamped with the inner layer of the drawing head, the back of the drawing block is welded to the inner layer of the drawing head, the opening and closing sheet is a smooth knife-shaped sheet structure with the top surface connected through a torsion spring, and two opening and closing sheets are mirror-imaged distributed in the inner layer of the drawing head.

[0007] Further, the drawing block comprises a blocking block, an upward pipe, a blocking ball and a containing groove, the back of the blocking block is welded to the inner layer of the drawing head, the upward pipe is embedded in the bottom surface of the blocking block, the outer layer of the blocking ball is in contact with the inner layer of the upward pipe, and the containing groove is integrally formed with the inner layer of the blocking block, the blocking ball is a hollow foam ball structure, and the inner layer of the upward pipe is provided with a horizontal rod.

[0008] Further, the blocking block comprises a supporting block, a rear leaf, a blocking wing and a sealing head, the top surface of the supporting block is integrally formed with the bottom surface of the rear leaf, the right side of the blocking wing is fixedly installed on the left side of the supporting block, the outer layer of the sealing head is embedded in the left side of the blocking wing, the upward pipe is integrally formed with the inner layer of the supporting block, and the blocking wing is provided with two blocking wings which are mirror-imaged distributed on the two sides of the supporting block.

[0009] Further, the blocking wing comprises a connecting ring, a guide sheet, a lifting sheet and a compression sheet, the outer layer of the connecting ring is movably connected with the left side of the guide sheet, the top surface of the lifting sheet is embedded in the bottom surface of the guide sheet, the right side of the compression sheet is embeddedly connected with the top of the guide sheet, the left side of the compression sheet is embeddedly connected with the outer layer of the connecting ring, the center of the connecting ring is fixedly installed on the left side of the supporting block, and the top surface of the compression sheet is provided with three deep arc-shaped groove structures which are evenly distributed.

[0010] Further, the connecting ring comprises an extrusion ring, a compression ring, a sliding groove and a fixing frame, the inner part of the extrusion ring is integrally formed with the sliding groove, the two sides of the compression ring are embedded in the middle segment of the extrusion ring, the outer layer of the fixing frame is movably connected with the inner layer of the sliding groove, and the outer layer of the extrusion ring is embeddedly connected with the left side of the compression sheet.

[0011] Further, the fixing frame comprises a mounting block, an outward strip, a stabilizing frame, a sliding block and an elastic block, the outer layer of the mounting block is fixedly connected with the bottom surface of the outward strip, the right side of the stabilizing frame is movably clamped with the inner layer of the outward strip, the outer right side of the sliding block is fixedly connected with the top of the outward strip, the outer left side of the sliding block is movably clamped with the right side of the elastic block, the sliding block is movably connected with the inner layer of the sliding groove through the elastic block, and the sliding block is a spherical block structure with smooth surface.

[0012] Advantages

[0013] Compared with the prior art, the present application has the following advantages:

[0014] 1. The pump water machine is used to transport the dialysate into the containing bin, and the dialysate is sent into the patient's abdominal cavity through two connecting pipes, the dialysate is separated from metabolic waste through the permeation sheet, and is re-injected into the patient's abdominal cavity to complete the automatic liquid exchange function, when the connecting pipe extracts the dialysate, the dialysate moves upward along the embedded head, opens the opening and closing sheet, and enters the extraction block, part of the dialysate enters the upward pushing pipe, pushes the blocking ball upward and enters the containing groove and is then continuously extracted upward, and part of the dialysate passes through the blocking side wing, is pushed and damaged to be attached to the extraction head, so that the dialysate moves upward and is extracted, when the dialysis is completed, the dialysate is no longer continuously extracted, and part of the dialysate flows downward under the action of gravity, at this time, the resistance of falling is increased through the one-way groove, when the falling dialysate passes through the blocking block, the blocking side wing is re-attached to the inner wall of the extraction head, and the blocking ball closes the upward pushing groove, thereby avoiding the re-entry of part of the dialysate into the patient's body due to gravity.

[0015] 2. When the dialysate is extracted, the impact force generated by the upward movement of the dialysate impacts on the guide sheet, so that the dialysate is guided and the dialysate is prevented from falling through the lifting sheet, the compression sheet is squeezed and the extrusion ring of the outer layer of the connecting ring is twisted, and the extrusion ring is squeezed, at the same time, the sliding block of the outer layer of the fixing frame slides in the sliding groove and stretches the elastic block, thereby generating strong restoring elastic force, when the extraction is completed, the dialysate loses the extraction power, so that the elastic force of the elastic block stretched by the impact of the dialysate is quickly released, at the same time, the elastic force in the compression ring is quickly released, thereby causing the extrusion ring to be quickly twisted and driving the compression sheet to recover further to accelerate the recovery speed, thereby allowing the blocking side wing to quickly recover and attach to the boundary, at this time, if the dialysate falls due to gravity, the dialysate can be blocked by the compression sheet and the guide sheet, further avoiding the falling of the dialysate into the patient's body. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1It is a three-dimensional structure schematic view of the automatic liquid changing device for peritoneal dialysis.

[0017] Figure 2 It is a structure schematic view of the machine body from the top view.

[0018] Figure 3 It is a structure schematic view of the connecting pipe from the front view.

[0019] Figure 4 It is a structure schematic view of the embedding head from the front view.

[0020] Figure 5 It is a structure schematic view of the extracting block from the front view.

[0021] Figure 6 It is a structure schematic view of the blocking block from the front view.

[0022] Figure 7 It is a structure schematic view of the blocking side wing from the front view.

[0023] Figure 8 It is a structure schematic view of the connecting ring from the front view.

[0024] Figure 9 It is a structure schematic view of the fixing frame from the front view.

[0025] In the figure: base-1, machine body-2, control console-3, sealing cover-4, containing bin-21, water pumping machine-22, permeation sheet-23, connecting pipe-24, conveying pipe-241, one-way groove-242, embedding head-243, extracting head-A1, one-way head-A2, opening and closing sheet-A3, extracting block-A4, blocking block-A41, upward rushing pipe-A42, blocking ball-A43, containing groove-A44, supporting block-B1, rear leaf-B2, blocking side wing-B3, sealing head-B4, connecting ring-B31, guiding sheet-B32, lifting sheet-B33, compressing sheet-B34, extruding ring-C1, compressing ring-C2, sliding groove-C3, fixing frame-C4, mounting block-C41, outward extending strip-C42, stabilizing frame-C43, sliding block-C44, elastic block-C45. DETAILED DESCRIPTION

[0026] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0027] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] Embodiment one:

[0029] Please refer to Figures 1-6 , the embodiment of the present application is as follows: an automatic peritoneal dialysis liquid changing device, which comprises a base 1, a machine body 2, a control console 3, and a sealing cover 4. The bottom surface of the machine body 2 is welded and connected to the top surface of the base 1. The left side of the control console 3 is embedded in the right side of the machine body 2. The bottom surface of the sealing cover 4 is movably connected to the top surface of the machine body 2. The machine body 2 comprises a containing bin 21, a water pumping machine 22, a permeation sheet 23, and a connecting pipe 24. The right side of the containing bin 21 is fixedly connected to the left side of the control console 3. The water pumping machine 22 is embedded in the left side of the containing bin 21. The upper and lower surfaces of the permeation sheet 23 are fixedly connected to the inner layer of the containing bin 21. The top surface of the connecting pipe 24 is in communication with the inner layer of the containing bin 21 and is fixedly connected thereto. The permeation sheet 23 is provided with two permeation sheets 23, which are evenly distributed in the inner layer of the containing bin 21, which is beneficial for multiple permeation and further separates the harmful substances and dialysis fluid.

[0030] The connecting pipe 24 comprises a conveying pipe 241, a one-way groove 242, and an embedded head 243. The top surface of the conveying pipe 241 is in communication with the bottom surface of the containing bin 21 and is fixedly connected thereto. The one-way groove 242 is integrally formed with the inner layer of the conveying pipe 241. The top surface of the embedded head 243 is in communication with the bottom surface of the conveying pipe 241 and is fixedly connected thereto. The one-way groove 242 is a rough inverted half-heart-shaped groove structure, which is beneficial for generating strong resistance when the dialysis fluid flows back.

[0031] The embedded head 243 comprises an extraction head A1, a one-way head A2, an opening and closing sheet A3, and an extraction block A4. The top surface of the extraction head A1 is in communication with the bottom surface of the conveying pipe 241 and is fixedly connected thereto. The left side of the one-way head A2 is embedded in the inner layer of the extraction head A1. The top of the opening and closing sheet A3 is movably clamped with the inner layer of the extraction head A1. The back of the extraction block A4 is welded to the inner layer of the extraction head A1. The opening and closing sheet A3 is a smooth knife-shaped sheet structure with a top surface connected by a torsion spring, and is provided with two, which are mirror-distributed in the inner layer of the extraction head A1, which is beneficial for being pushed open by the liquid during extraction, and closing after stopping under the action of the torsion spring and avoiding leakage.

[0032] The blocking block A41 includes a supporting block B1, a rear leaf B2, a blocking wing B3 and a sealing head B4, the top surface of the supporting block B1 and the bottom surface of the rear leaf B2 are integrally formed, the blocking wing B3 is fixedly installed on the left side of the supporting block B1, the outer layer of the sealing head B4 is embedded in the left side of the blocking wing B3, the upper flushing pipe A42 and the inner layer of the supporting block B1 are integrally formed, and the blocking wing B3 is provided with two blocking wings B3 which are mirror-distributed on both sides of the supporting block B1, so as to increase the speed during extraction and can simultaneously block.

[0033] The blocking block A41 includes a supporting block B1, a rear leaf B2, a blocking wing B3 and a sealing head B4, the top surface of the supporting block B1 and the bottom surface of the rear leaf B2 are integrally formed, the blocking wing B3 is fixedly installed on the left side of the supporting block B1, the outer layer of the sealing head B4 is embedded in the left side of the blocking wing B3, the upper flushing pipe A42 and the inner layer of the supporting block B1 are integrally formed, and the blocking wing B3 is provided with two blocking wings B3 which are mirror-distributed on both sides of the supporting block B1, so as to increase the speed during extraction and can simultaneously block.

[0034] Based on the above embodiment, the specific working principle is as follows: the pump water machine 22 is used to transport the dialysis liquid sent into the containing bin 21, so that the dialysis liquid is sent into the patient's abdominal cavity through two connecting pipes 24, the dialysis liquid is separated from metabolic waste through the permeation sheet 23, and is re-injected into the patient's abdominal cavity to complete the automatic liquid replacement function. When the connecting pipe 24 extracts the dialysis liquid, the dialysis liquid moves upward along the embedded head 243, pushes open the leaf A3, and enters the extraction block A4 at the same time, part of the dialysis liquid enters the upper flushing pipe A42, pushes the blocking ball A43 and enters the containing groove A44 and is then continuously extracted upward, and part of the dialysis liquid is pushed and damaged to be attached to the extraction head A1 through the blocking wing B3, so that the dialysis liquid moves upward and is extracted. When the dialysis is completed, the dialysis liquid is no longer continuously extracted, and part of the dialysis liquid flows downward under the action of gravity. At this time, the falling resistance is increased through the one-way groove 242, and when the falling dialysis liquid passes through the blocking block A41, the blocking wing B3 is reattached to the inner wall of the extraction head A1 on both sides, and the blocking ball A43 closes the upper flushing groove A42, thereby avoiding the re-entry of part of the dialysis liquid into the patient's body due to gravity.

[0035] Embodiment two:

[0036] Please refer to Figures 7-9The embodiment of the present application is as follows: the blocking wing B3 comprises a connecting ring B31, a guide piece B32, a lifting piece B33, and a compression piece B34; the outer layer of the connecting ring B31 is movably connected with the left side of the guide piece B32; the top surface of the lifting piece B33 is embedded in the bottom surface of the guide piece B32; the right side of the compression piece B34 is fixedly connected with the top of the guide piece B32; the left side of the compression piece B34 is fixedly connected with the outer layer of the connecting ring B31; the center of the connecting ring B31 is fixedly installed on the left side of the supporting block B1; and the top surface of the compression piece B34 is provided with three arc-shaped recess structures which are evenly distributed, which is beneficial to the compression deformation during extraction and the generation of greater thrust during the falling of the backflow dialysis liquid.

[0037] The connecting ring B31 comprises an extrusion ring C1, a compression ring C2, a sliding groove C3, and a fixing frame C4; the inside of the extrusion ring C1 is integrally formed with the sliding groove C3; the two sides of the compression ring C2 are embedded in the middle section of the extrusion ring C1; the outer layer of the fixing frame C4 is movably connected with the inner layer of the sliding groove C3; the outer layer of the extrusion ring C1 is fixedly connected with the left side of the compression piece B34; and the compression ring C2 is a hollow elliptical ring structure made of elastic rubber, which is beneficial to the deformation and the generation of elastic force during extrusion.

[0038] The fixing frame C4 comprises a mounting block C41, an outward extending strip C42, a stabilizing frame C43, a sliding block C44, and an elastic block C45; the outer layer of the mounting block C41 is fixedly connected with the bottom surface of the outward extending strip C42; the right side of the stabilizing frame C43 is movably clamped with the inner layer of the outward extending strip C42; the outer layer of the right side of the sliding block C44 is fixedly connected with the top of the outward extending strip C42; the outer layer of the left side of the sliding block C44 is movably clamped with the right side of the elastic block C45; the sliding block C44 is movably connected with the inner layer of the sliding groove C3 through the elastic block C45; and the sliding block C44 is a spherical block structure with smooth surface, which is beneficial to the reduction of frictional resistance during sliding.

[0039] Based on the above embodiment, the specific working principle is as follows: when the dialysate is extracted, the blocking side wing B3 is impacted by the impact force generated by the upward movement of the dialysate on the guide piece B32, so that the guide piece B32 rotates along the outer layer of the connecting ring B31, at the same time, the dialysate is guided, and the lifting piece B33 is lifted to avoid the falling of the dialysate, at the same time of rotating, the compression piece B34 is also extruded, and the extrusion ring C1 of the outer layer of the connecting ring B31 is twisted, and the compression ring C2 is extruded, at the same time, the sliding block C44 of the outer layer of the fixed frame C4 is extruded due to the twisting of the extrusion ring C1, and then slides in the sliding groove C3, and stretches the elastic block C45, so as to generate strong restoring elastic force, when the extraction is finished, the dialysate loses the extraction power, so the elastic force of the elastic block C45 which is stretched by the impact of the dialysate is quickly released, at the same time, the elastic force in the compression ring C2 is also quickly released, so as to cause the extrusion ring C1 to be quickly twisted, and drive the compression piece B34 to restore further to accelerate the restoring speed, so as to make the blocking side wing B3 quickly restore and adhere to the boundary, at this time, if the dialysate falls due to gravity, it can be blocked by the compression piece B34 and the guide piece B32, and further avoid the dialysate from falling into the patient's body.

[0040] The technical features of the above embodiments can be combined arbitrarily, in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered that it is within the scope of the present application.

[0041] Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An automatic peritoneal dialysis liquid changing device, comprising a base, a body, a control console and a sealing cover, characterized in that: the bottom surface of the body is welded to the top surface of the base, the left side of the control console is embedded in the right side of the body, and the bottom surface of the sealing cover is movably connected to the top surface of the body; the body comprises a containing bin, a water pump, a permeation sheet and a connecting pipe, the right side of the containing bin is fixedly connected to the left side of the control console, the water pump is embedded in the left side of the containing bin, the upper and lower surfaces of the permeation sheet are fixedly connected to the inner layer of the containing bin, and the top surface of the connecting pipe is in communication with the inner layer of the containing bin and is fixedly connected thereto; the connecting pipe comprises a conveying pipe, a one-way groove and an embedded head, the top surface of the conveying pipe is in communication with the bottom surface of the containing bin and is fixedly connected thereto, the one-way groove is integrally formed with the inner layer of the conveying pipe, and the top surface of the embedded head is in communication with the bottom surface of the conveying pipe and is fixedly connected thereto; the embedded head comprises a drawing head, a one-way head, an opening and closing sheet and a drawing block, the top surface of the drawing head is in communication with the bottom surface of the conveying pipe and is fixedly connected thereto, the left side of the one-way head is embedded in the inner layer of the drawing head, the top of the opening and closing sheet is movably clamped to the inner layer of the drawing head, and the back of the drawing block is welded to the inner layer of the drawing head; the drawing block comprises a blocking block, an upward pushing pipe, a blocking ball and a containing groove, the back of the blocking block is welded to the inner layer of the drawing head, the upward pushing pipe is embedded in the bottom surface of the blocking block, the outer layer of the blocking ball is in contact with the inner layer of the upward pushing pipe, and the containing groove is integrally formed with the inner layer of the blocking block; the blocking block comprises a supporting block, a rear leaf, a blocking wing and a sealing head, the top surface of the supporting block is integrally formed with the bottom surface of the rear leaf, the right side of the blocking wing is fixedly installed to the left side of the supporting block, the outer layer of the sealing head is embedded in the left side of the blocking wing, and the upward pushing pipe is integrally formed with the inner layer of the supporting block; the blocking wing comprises a connecting ring, a guide sheet, a lifting sheet, a compression sheet, the outer layer of the connecting ring is movably connected to the left side of the guide sheet, the top surface of the lifting sheet is embedded in the bottom surface of the guide sheet, the right side of the compression sheet is fixedly connected to the top of the guide sheet, the left side of the compression sheet is fixedly connected to the outer layer of the connecting ring, and the center of the connecting ring is fixedly installed to the left side of the supporting block; the connecting ring comprises a squeezing ring, a compression ring, a sliding groove and a fixing frame, the inside of the squeezing ring is integrally formed with the sliding groove, the two sides of the compression ring are embedded in the middle section of the squeezing ring, the outer layer of the fixing frame is movably connected to the inner layer of the sliding groove, and the outer layer of the squeezing ring is fixedly connected to the left side of the compression sheet; the fixing frame comprises a mounting block, an outward extending strip, a stabilizing frame, a sliding block and an elastic block, the outer layer of the mounting block is fixedly connected to the bottom surface of the outward extending strip, the right side of the stabilizing frame is movably clamped to the inner layer of the outward extending strip, the outer layer of the sliding block is fixedly connected to the top of the outward extending strip, the outer layer of the sliding block is movably clamped to the right side of the elastic block, and the sliding block is movably connected to the inner layer of the sliding groove through the elastic block. ​ ​ ​ ​ ​ ​ ​ ​ ​

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