Intelligent dialysis machine replacement liquid pipeline installation detection device

Abstract

The invention discloses an intelligent dialysis machine replacement liquid pipeline installation and detection device, and relates to the technical field of medical instruments, the intelligent dialysis machine replacement liquid pipeline installation and detection device comprises a retention pot, the top end of the retention pot is movably connected with a cover plate, the bottom of the retention pot is fixedly connected with an eduction tube, and the cover plate is fixedly connected with an induction tube and a replacement liquid induction tube. A guide-in groove is formed in the cover plate, and the replacement liquid guide-in pipe is communicated with the interior of the retention pot through the guide-in groove. When the liquid level in the retention pot rises, the sealing plug can gradually move upwards along the sliding rod under the action of buoyancy until the sealing plug enters the guide-in groove, blockage is formed, the possibility of blood backflow is reduced, meanwhile, the warning mechanism gives an alarm to remind medical staff to take measures in time, blood backflow is avoided, and the medical staff can be prevented from being injured. The inside of the blood filter and a bacterial filter are polluted by blood, and the dialyzer is coagulated and ruptured in membrane, and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to an intelligent dialysis machine replacement fluid pipeline installation detection device. Background Art

[0002] Hemodialysis is a type of blood purification technology. By drawing out the patient's blood and passing it through a dialyzer composed of countless hollow fibers, the blood and dialysate (an electrolyte solution with a concentration similar to that of the body) exchange substances inside and outside the hollow fibers through the principles of diffusion, ultrafiltration, adsorption, and convection, removing metabolic wastes in the body, maintaining electrolyte and acid-base balance, simultaneously removing excess water in the body, and returning the purified blood, thereby completing the purification of the blood.

[0003] Dialysis replacement fluid refers to the fluid that exchanges with body fluids during hemofiltration treatment. It is mainly used to maintain electrolyte balance, regulate acid-base balance, supplement nutrition, and prevent blood coagulation. Through the replacement effect, it can help patients excrete excess water and metabolic wastes in the body and maintain the stability of the internal environment. The usage methods of dialysis replacement fluid are mainly divided into pre-dilution method and post-dilution method. In the pre-dilution method, the replacement fluid is added before the blood enters the hemofilter, that is, injected through the arterial chamber; the post-dilution method is to add it after the blood flows out of the hemofilter, that is, injected through the venous chamber.

[0004] Reverse connection of the replacement fluid pipe means that due to human error, the outflow end of the replacement fluid pipe (connected to the hemofiltration machine end) and the inflow end of the replacement fluid pipe (connected to the blood circuit pipe end) are reversely connected. The equipment with the reverse-connected replacement fluid pipe will still operate, while the hemofiltration machine can only monitor the operation of the rotating shaft of the replacement fluid pump, and the alarm for abnormal transmembrane pressure is relatively lagged and unreliable, which is likely to cause adverse events such as massive blood loss of patients, blood contamination of the inside of the hemofiltration machine and the bacterial filter, coagulation of the dialyzer, and membrane rupture. Therefore, the present application proposes an intelligent dialysis machine replacement fluid pipeline installation detection device to solve the above problems. Summary of the Invention

[0005] The present invention provides an intelligent dialysis machine replacement fluid pipeline installation detection device to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is:

[0007] An intelligent dialysis machine replacement fluid pipeline installation detection device includes a retention pot. The top of the retention pot is movably connected with a cover plate. The bottom of the retention pot is fixedly connected with a lead-out pipe. The cover plate is fixedly connected with an inlet pipe and a replacement fluid inlet pipe. An inlet groove is opened on the cover plate, and the replacement fluid inlet pipe is communicated with the inside of the retention pot through the inlet groove.

[0008] A plurality of sliding rods are fixedly connected to the lower surface of the cover plate. The plurality of sliding rods are evenly distributed around the inlet groove. A sliding plate is movably connected to the outer surface of each sliding rod. One ends of the plurality of sliding plates are fixedly connected to a bottom plate. A sealing plug is fixedly connected to the upper surface of the bottom plate. The sealing plug is aligned with the inlet groove. The sealing plug is narrow at the top and wide at the bottom, and the diameter of the widest part of the sealing plug is the same as the inner diameter of the inlet groove.

[0009] A warning mechanism is arranged on the upper surface of the cover plate.

[0010] A further improvement of the technical solution of the present invention is that a plurality of buoyancy balls are fixedly connected to the lower surface of the bottom plate.

[0011] A further improvement of the technical solution of the present invention is that a base and a support block are fixedly connected to the upper surface of the cover plate. The base and the support block are distributed on both sides of the replacement liquid inlet pipe. A pressing block is fixedly connected to the base. The side of the pressing block facing the support block abuts against the surface of the replacement liquid inlet pipe. A pressing strip is movably connected to the support block. The side of the pressing strip close to the base fits the shape of the base.

[0012] A further improvement of the technical solution of the present invention is that a telescopic rod is fixedly connected to one side of the pressing strip. The telescopic rod is fixedly connected to the support block. A first spring is sleeved on the outer surface of the telescopic rod where it is connected to the pressing strip.

[0013] A further improvement of the technical solution of the present invention is that a top groove is formed in the support block. An insertion strip penetrates through the pressing strip and is movably connected to the pressing strip. The insertion strip extends into the interior of the top groove and is movably connected to the inner wall of the top groove.

[0014] A further improvement of the technical solution of the present invention is that a top rod is fixedly connected to the sliding plate. The top rod penetrates through the cover plate and is movably connected to the cover plate and the top groove. When the sliding plate is at the lowest position, the top rod is movably connected to the cover plate.

[0015] A further improvement of the technical solution of the present invention is that a rotating plate is fixedly connected to the end of the insertion strip located outside the pressing strip. A second spring is sleeved on the outer surface of the insertion strip between the pressing strip and the rotating plate. Two ends of the second spring are respectively fixedly connected to the rotating plate and the pressing strip.

[0016] A further improvement of the technical solution of the present invention is that the warning mechanism includes a warning light, a power storage device and a warning horn fixedly connected to the cover plate. The warning light, the power storage device and the warning horn are connected in series through wires.

[0017] A further improvement of the technical solution of the present invention is that a push rod is fixedly connected to one side of the pressing strip. One end of the push rod is fixedly connected to a contact head. A first wire is electrically connected to the contact head. One end of the first wire is electrically connected to the warning light.

[0018] One side of the base is fixedly connected with a support rod, a sliding contact is movably connected to the support rod, a second wire is electrically connected to the outer surface of the sliding contact, and one end of the second wire is electrically connected to the warning horn.

[0019] A further improvement of the technical solution of the present invention lies in that: a slot is provided on the sliding contact, and the inner wall of the slot is movably connected to the outer surface of the contact head.

[0020] Due to the adoption of the above technical solution, the technical progress achieved by the present invention compared with the prior art is:

[0021] 1. The present invention provides an intelligent dialysis machine replacement fluid pipeline installation detection device. When the installation of the replacement fluid pipeline and the replacement fluid inlet pipe is reversed, under the continuous action of the replacement fluid pump, the pressure in the retention pot gradually decreases. Under the action of the atmospheric pressure, the liquid level in the retention pot rises. When the liquid level exceeds the inlet groove, blood backflow will occur. Since the sealing plug is made of a light material, the sealing plug always floats. When the liquid level rises, the sealing plug will gradually move upward along the slide rod under the action of buoyancy until the sealing plug enters the inlet groove to form a blockage, reducing the possibility of blood backflow. At the same time, the warning mechanism issues an alarm to remind medical staff to take timely measures to avoid blood backflow, and problems such as a large amount of blood loss of the patient, blood contamination of the inside of the blood filter machine and the bacterial filter, blood coagulation in the dialyzer, and membrane rupture.

[0022] 2. The present invention provides an intelligent dialysis machine replacement fluid pipeline installation detection device. The side of the pressing strip close to the base fits the shape of the base. The pressing strip can slide along the top of the support block towards the pressing block, and with the cooperation of the pressing block, it exerts a squeezing and clamping action on the replacement fluid inlet pipe, further avoiding the problem of blood backflow through the replacement fluid inlet pipe.

[0023] 3. The present invention provides an intelligent dialysis machine replacement fluid pipeline installation detection device. The insertion strip and the top groove form a clamping connection, so that when the replacement fluid pipeline is not installed reversely, the pressing strip is clamped and does not abut against the replacement fluid inlet pipe. When the replacement fluid pipeline is installed reversely, the insertion strip is lifted and separated from the support block. At this time, the pressing strip pops out towards the pressing block under the action of the first compression spring, and cooperates with the pressing block to exert a squeezing force on the replacement fluid inlet pipe, further avoiding blood backflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a structural schematic diagram of the present invention;

[0025] Figure 2 is a structural schematic diagram of the cover plate of the present invention;

[0026] Figure 3 is another angle structural schematic diagram of the cover plate of the present invention;

[0027] Figure 4 Schematic diagram of the internal structure of the cover plate of the present invention;

[0028] Figure 5 Schematic diagram of the structure of the pressing strip of the present invention;

[0029] Figure 6 Schematic diagram of the cross-sectional structure of the support block of the present invention;

[0030] Figure 7 Schematic diagram of the structure of the sealing plug of the present invention;

[0031] Figure 8 For the present invention Figure 3 Enlarged schematic diagram of the structure at position A in

[0032] In the figure: 1, retention pot; 2, outlet pipe; 3, inlet pipe; 4, replacement fluid inlet pipe; 5, cover plate; 6, support block; 7, telescopic rod; 8, first spring; 9, pressing strip; 10, insertion strip; 11, second spring; 12, rotating plate; 13, top groove; 14, inlet groove; 15, sliding rod; 16, sliding plate; 17, bottom plate; 18, buoyancy ball; 19, sealing plug; 20, top rod; 21, limiting piece; 22, base; 23, pressing block; 24, push rod; 25, contact; 26, first wire; 27, warning light; 28, power storage device; 29, warning horn; 30, second wire; 31, support rod; 32, sliding contact; 33, slot. Detailed implementation manners

[0033] The following further describes the present invention in detail with reference to embodiments:

[0034] Embodiment:

[0035] As Figures 1-8 shown, the present invention provides an intelligent dialysis machine replacement fluid pipeline installation detection device, including a retention pot 1. The retention pot 1 is a prior art and can be an arterial pot or a venous pot. The top of the retention pot 1 is movably connected to a cover plate 5. The bottom of the retention pot 1 is fixedly connected to an outlet pipe 2. The cover plate 5 is fixedly connected to an inlet pipe 3 and a replacement fluid inlet pipe 4. An inlet groove 14 is formed on the cover plate 5. The replacement fluid inlet pipe 4 is communicated with the inside of the retention pot 1 through the inlet groove 14. The inlet pipe 3 is a blood inflow pipeline, the outlet pipe 2 is a blood outflow pipeline, and the replacement fluid inlet pipe 4 is a replacement fluid inflow pipeline. It is made of a soft material that is prone to elastic deformation. The input end of the replacement fluid pipeline is connected to the replacement fluid inlet pipe 4, and the output end of the replacement fluid pipeline is connected to the replacement fluid location.

[0036] The lower surface of the cover plate 5 is fixedly connected with a plurality of sliding rods 15. The bottom of the sliding rods 15 is fixedly connected with limiting pieces 21. The plurality of sliding rods 15 are evenly distributed around the guiding groove 14. A sliding plate 16 is movably connected to the outer surface of each sliding rod 15. One ends of the plurality of sliding plates 16 are fixedly connected with a bottom plate 17. The upper surface of the bottom plate 17 is fixedly connected with a sealing plug 19. The sealing plug 19 is aligned with the guiding groove 14. The sealing plug 19 is narrow at the top and wide at the bottom. The diameter of the widest part of the sealing plug 19 is the same as the inner diameter of the guiding groove 14. The bottom plate 17 and the sealing plug 19 are both made of lightweight materials.

[0037] A warning mechanism is arranged on the upper surface of the cover plate 5.

[0038] When the installation of the replacement fluid pipeline and the replacement fluid inlet pipe 4 is connected reversely, under the continuous action of the replacement fluid pump, the pressure in the retention pot 1 gradually decreases. Under the action of the atmospheric pressure, the liquid level in the retention pot 1 rises. When the liquid level passes over the guiding groove 14, blood backflow will occur. Since the sealing plug 19 is made of lightweight materials, the sealing plug 19 always floats. When the liquid level rises, the sealing plug 19 will gradually move upward along the sliding rod 15 under the action of buoyancy until the sealing plug 19 enters the guiding groove 14 to form a blockage, reducing the possibility of blood backflow. At the same time, the warning mechanism emits an alarm to remind medical staff to take timely measures to avoid blood backflow, so as to prevent problems such as massive blood loss of patients, blood contamination of the internal part of the blood filter machine and the bacteria filter, coagulation of the dialyzer, and membrane rupture.

[0039] Furthermore, a plurality of buoyancy balls 18 are fixedly connected to the lower surface of the bottom plate 17. Through the action of the plurality of buoyancy balls 18, it is ensured that the bottom plate 17 and the sealing plug 19 can always float on the blood.

[0040] Furthermore, a base 22 and a support block 6 are fixedly connected to the upper surface of the cover plate 5. The base 22 and the support block 6 are distributed on both sides of the replacement fluid inlet pipe 4. A pressing block 23 is fixedly connected to the base 22. The side of the pressing block 23 facing the support block 6 abuts against the surface of the replacement fluid inlet pipe 4. A pressing strip 9 is movably connected to the support block 6. The side of the pressing strip 9 close to the base 22 fits the shape of the base 22. The pressing strip 9 can slide along the top of the support block 6 towards the pressing block 23. With the cooperation of the pressing block 23, an extrusion and clamping action is exerted on the replacement fluid inlet pipe 4, further avoiding the problem of blood backflow through the replacement fluid inlet pipe 4.

[0041] Furthermore, a telescopic rod 7 is fixedly connected to one side of the pressing strip 9. The telescopic rod 7 is fixedly connected to the support block 6. A first spring 8 is sleeved on the outer surface of the telescopic rod 7 where it is connected to the pressing strip 9. In the initial stage, the base 22 is separated from the pressing strip 9 and is not extruded by the replacement fluid inlet pipe 4. At this time, the telescopic rod 7 is in an unextended state and the first spring 8 is in a compressed state.

[0042] Furthermore, a top groove 13 is formed in the support block 6. A pressing strip 9 is movably connected through an inserting strip 10. The inserting strip 10 extends into the interior of the top groove 13 and is movably connected to the inner wall of the top groove 13. The inserting strip 10 and the top groove 13 form a clamping connection, so that when the replacement fluid pipeline is not installed reversely, the pressing strip 9 is clamped and does not abut against the replacement fluid inlet pipe 4. When the replacement fluid pipeline is installed reversely, the inserting strip 10 is lifted and separated from the support block 6. At this time, under the action of the first compression spring 8, the pressing strip 9 pops out towards the pressing block 23 and cooperates with the pressing block 23 to squeeze the replacement fluid inlet pipe 4, further avoiding the backflow of blood.

[0043] Furthermore, a top rod 20 is fixedly connected to the sliding plate 16. The top rod 20 penetrates through the cover plate 5 and is movably connected to both the cover plate 5 and the top groove 13. When the sliding plate 16 is at the lowest position, the top rod 20 is movably connected to the cover plate 5. When the replacement fluid pipeline is installed reversely and the liquid level in the storage pot 1 rises, the top rod 20 rises together under the action of the sliding plate 16 until it extends into the top groove 13 and ejects the inserting strip 10, unlocking the pressing strip 9, and the pressing strip 9 can pop out towards the pressing block 23 under the action of the first compression spring 8.

[0044] Furthermore, a rotating plate 12 is fixedly connected to one end of the inserting strip 10 located outside the pressing strip 9. A second spring 11 is sleeved on the outer surface of the inserting strip 10 between the pressing strip 9 and the rotating plate 12. The two ends of the second spring 11 are respectively fixedly connected to the rotating plate 12 and the pressing strip 9. When the inserting strip 10 is ejected by the top rod 20, the second spring 11 is stretched, which is convenient for subsequent reset use.

[0045] Furthermore, the warning mechanism includes a warning lamp 27, a power storage device 28 and a warning horn 29 fixedly connected to the cover plate 5. The warning lamp 27, the power storage device 28 and the warning horn 29 are connected in series through wires. When the replacement fluid pipeline is connected reversely, the warning lamp 27 and the warning horn 29 respectively emit flashing lights and warning messages to remind medical staff to take measures in time. The warning lamp 27, the power storage device 28 and the warning horn 29 are all prior arts. The power storage device 28 is used to supply power to the warning lamp 27 and the warning horn 29, and power supply can also be carried out by other means.

[0046] Furthermore, a push rod 24 is fixedly connected to one side of the pressing strip 9. One end of the push rod 24 is fixedly connected to a contact 25. A first wire 26 is electrically connected to the contact 25. One end of the first wire 26 is electrically connected to the warning lamp 27.

[0047] A support rod 31 is fixedly connected to one side of the base 22. A sliding contact 32 is movably connected to the support rod 31. A second wire 30 is electrically connected to the outer surface of the sliding contact 32. One end of the second wire 30 is electrically connected to the warning horn 29.

[0048] When the replacement fluid pipeline is connected in reverse, the pressure strip 9 and the pressure block 23 will approach each other. At this time, since the distance between the push rod 24 and the support rod 31 is relatively close, when the pressure strip 9 and the pressure block 23 are not butted, the sliding contact 32 and the contact 25 will abut first, so that the circuits of the warning lamp 27 and the warning horn 29 are connected, so that a warning can be issued first. When the pressure strip 9 abuts against the pressure block 23 and constantly squeezes the replacement fluid inlet pipe 4, further sealing can be formed to avoid blood backflow.

[0049] Further, a slot 33 is formed in the sliding contact 32, and the inner wall of the slot 33 is movably connected to the outer surface of the contact 25, so that the contact 25 and the sliding contact 32 can be in full contact.

[0050] Next, the working principle of the replacement fluid pipeline installation detection device of the intelligent dialysis machine will be specifically described.

[0051] As Figures 1-8 shown, when the replacement fluid pipeline is connected in reverse, the liquid level rises, and the sealing plug 19 will gradually move up along the sliding rod 15 under the action of buoyancy until the sealing plug 19 enters the inlet groove 14 to form a blockage. At the same time, the ejector rod 20 will rise together with the sliding plate 16 until it extends into the top groove 13 and ejects the insertion strip 10, so that the pressure strip 9 is unlocked and can pop out towards the pressure block 23 under the action of the compression spring I 8. When the sliding contact 32 abuts against the contact 25, the circuits of the warning lamp 27 and the warning horn 29 are connected, and a warning is issued through the warning lamp 27 and the warning horn 29 to remind the medical staff to take measures in time. When the pressure strip 9 abuts against the pressure block 23, it can squeeze the replacement fluid inlet pipe 4 to further avoid blood backflow.

Claims

1. An intelligent dialysis machine replacement fluid pipeline installation detection device, comprising a retention pot (1), characterized in that: The top of the retention pot (1) is movably connected to a cover plate (5), the bottom of the retention pot (1) is fixedly connected to a guide pipe (2), the cover plate (5) is fixedly connected to an introduction pipe (3) and a replacement fluid introduction pipe (4), the cover plate (5) is provided with an introduction groove (14), and the replacement fluid introduction pipe (4) is connected to the interior of the retention pot (1) through the introduction groove (14); The lower surface of the cover plate (5) is fixedly connected to a plurality of slide bars (15), the plurality of slide bars (15) are evenly distributed around the introduction groove (14), the outer surface of each of the slide bars (15) is movably connected to a slide plate (16), one end of the plurality of slide plates (16) is fixedly connected to a bottom plate (17), the upper surface of the bottom plate (17) is fixedly connected to a sealing plug (19), the sealing plug (19) is aligned with the introduction groove (14), the sealing plug (19) is narrow at the top and wide at the bottom, and the diameter of the widest part of the sealing plug (19) is consistent with the inner diameter of the introduction groove (14); The upper surface of the cover plate (5) is provided with a warning mechanism.

2. The intelligent dialysis machine replacement fluid pipeline installation detection device according to claim 1, characterized in that: A plurality of buoyancy balls (18) are fixedly connected to the lower surface of the bottom plate (17).

3. The intelligent dialysis machine replacement fluid pipeline installation detection device according to claim 1, characterized in that: The upper surface of the cover plate (5) is fixedly connected to a base (22) and a support block (6); the base (22) and the support block (6) are distributed on both sides of the replacement fluid introduction tube (4); a pressing block (23) is fixedly connected to the base (22); the pressing block (23) abuts against the surface of the replacement fluid introduction tube (4) on the side facing the support block (6); a pressure strip (9) is movably connected to the support block (6); the pressure strip (9) is in conformity with the shape of the base (22) on the side close to the base (22).

4. The intelligent dialysis machine replacement fluid pipeline installation detection device according to claim 3, characterized in that: A telescopic rod (7) is fixedly connected to one side of the pressure strip (9), and the telescopic rod (7) is fixedly connected to the support block (6). A spring (8) is sleeved on the outer surface of the telescopic rod (7) connected to the pressure strip (9).

5. The intelligent dialysis machine replacement fluid pipeline installation detection device according to claim 3, characterized in that: The support block (6) is provided with a top groove (13), the pressure strip (9) penetrates and is movably connected with an insertion strip (10), and the insertion strip (10) extends to the inside of the top groove (13) and is movably connected to the inner wall of the top groove (13).

6. The intelligent dialysis machine replacement fluid pipeline installation detection device according to claim 1, characterized in that: The slide plate (16) is fixedly connected with a push rod (20), which passes through the cover plate (5) and is movably connected to the cover plate (5) and the top groove (13). When the slide plate (16) is at the lowest position, the push rod (20) is movably connected to the cover plate (5).

7. The intelligent dialysis machine replacement fluid pipeline installation detection device according to claim 5, characterized in that: One end of the inserting strip (10) located outside the pressure strip (9) is fixedly connected to a rotating plate (12); a second spring (11) is sleeved on the outer surface of the inserting strip (10) located between the pressure strip (9) and the rotating plate (12); and the two ends of the second spring (11) are respectively fixedly connected to the rotating plate (12) and the pressure strip (9).

8. The intelligent dialysis machine replacement fluid pipeline installation detection device according to claim 1, characterized in that: The warning mechanism comprises a warning light (27) fixedly connected to the cover plate (5), a power storage device (28) and a warning horn (29), wherein the warning light (27), the power storage device (28) and the warning horn (29) are connected in series via a wire.

9. The intelligent dialysis machine replacement fluid pipeline installation detection device according to claim 8, characterized in that: A push rod (24) is fixedly connected to one side of the pressure strip (9), a contact (25) is fixedly connected to one end of the push rod (24), a wire (26) is electrically connected to the contact (25), and one end of the wire (26) is electrically connected to a warning light (27); A support rod (31) is fixedly connected to one side of the base (22), a sliding contact (32) is movably connected to the support rod (31), a second wire (30) is electrically connected to the outer surface of the sliding contact (32), and one end of the second wire (30) is electrically connected to the warning speaker (29).

10. The intelligent dialysis machine replacement fluid pipeline installation detection device according to claim 9, characterized in that: The sliding contact (32) is provided with a slot (33), and the inner wall of the slot (33) is movably connected to the outer surface of the contact (25).

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