CN117357726B - Automatic liquid changing device for peritoneal dialysis - Google Patents
Automatic liquid changing device for peritoneal dialysis Download PDFInfo
- Publication number
- CN117357726B CN117357726B CN202311574191.8A CN202311574191A CN117357726B CN 117357726 B CN117357726 B CN 117357726B CN 202311574191 A CN202311574191 A CN 202311574191A CN 117357726 B CN117357726 B CN 117357726B
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- needle
- liquid storage
- storage tank
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 121
- 238000000502 dialysis Methods 0.000 title claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000001802 infusion Methods 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 21
- 239000012530 fluid Substances 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 17
- 230000009471 action Effects 0.000 abstract description 10
- 238000005096 rolling process Methods 0.000 abstract 1
- 230000008569 process Effects 0.000 description 15
- 239000000385 dialysis solution Substances 0.000 description 13
- 239000010720 hydraulic oil Substances 0.000 description 9
- 210000000683 abdominal cavity Anatomy 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/28—Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/28—Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
- A61M1/282—Operational modes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/28—Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
- A61M1/287—Dialysates therefor
Landscapes
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Urology & Nephrology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
Abstract
The invention belongs to the technical field of medical equipment, and particularly relates to an automatic liquid changing device for peritoneal dialysis. According to the invention, the needle removing mechanism is arranged, after the dialysate in the dialysate bag is completely flowed, the two swinging rods swing to the horizontal under the action of the elastic force of the first spring, at the moment, the racks are mutually far away under the action of the gear, the guide wheel is not abutted to the bottom of the guide block any more, the needle head is downwards displaced under the action of the elastic force of the second spring, and the needle head is automatically pulled out of the dialysate bag, so that the pollution to the needle head is reduced; through setting up replacement liquid mechanism, at the in-process that the syringe needle was pulled out at every turn automatically for the dialysate bag that hangs on the rolling disc is automatic to rotate to next, thereby replace the dialysate bag that uses up and the dialysate bag that does not use automatically.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to an automatic liquid changing device for peritoneal dialysis.
Background
Peritoneal dialysis is a dialysis method that uses the peritoneal membrane of the human body itself as a dialysis membrane. The dialysate infused into the abdominal cavity exchanges solute and moisture with plasma components in capillaries on the other side of the peritoneal membrane, so that metabolic products and excessive moisture retained in the body are removed, and substances necessary for the body are supplemented through the dialysate. The purpose of kidney substitution or supporting treatment is achieved by continuously renewing the peritoneal dialysis solution.
In the peritoneal dialysis process, the dialysate needs to be exchanged, so the following technical problems often exist:
1. When the dialysate is changed, a worker is required to pull out the needle manually, so that the workload of the worker is increased, the needle is easy to pollute, and the treatment effect on patients is affected;
2. After the worker pulls out the needle, the used dialysate bag needs to be taken down, and the next dialysate bag is hung up for subsequent peritoneal dialysis, so that the operation is very complicated;
3. In the process of changing the dialysate, air is inevitably introduced into the needle, but the existing dialysate cannot be efficiently removed from the air after changing the dialysate, so that the air is easily introduced into the abdominal cavity of a patient in the peritoneal dialysis process, and the danger of treating the patient is improved.
Disclosure of Invention
The present invention has been made in view of the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide an automatic fluid changing device for peritoneal dialysis, which can automatically withdraw a needle and automatically replace unused dialysate.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
An automated fluid exchange device for peritoneal dialysis, comprising:
The device comprises a device body, wherein a liquid storage tank is fixedly connected above the device body, a fixed disc is fixedly connected above the liquid storage tank, a rotating rod is rotationally connected on the fixed disc, a rotating disc is fixedly connected at the top of the rotating rod, and a plurality of hooks are fixedly connected with a lower wall array of the rotating disc;
One side fixedly connected with control box of liquid reserve tank, the inside of control box is equipped with the infusion mechanism that is used for carrying the dislysate, the top fixedly connected with of control box is used for automatic liquid change mechanism to the dislysate, the inside of liquid reserve tank is equipped with and is used for carrying out exhaust mechanism to the air.
Preferably, the infusion mechanism comprises a control cavity, an infusion tube, a runner tube, a sealing sleeve ring, a needle head and a needle removing mechanism, wherein the control cavity is formed in the control box, the infusion tube is fixedly connected to the control cavity, the infusion tube is communicated with the interior of the liquid storage box, the runner tube is fixedly connected to the upper portion of the infusion tube, the sealing sleeve ring is fixedly connected to the top of the runner tube, the needle head is connected to the upper portion of the control box in a penetrating and sliding manner, the bottom of the needle head is connected to the inner wall of the sealing sleeve ring in a sliding manner, the bottom of the needle head is communicated with the infusion tube through the sealing sleeve ring and the runner tube, and the needle removing mechanism for automatically removing the needle head is arranged in the control cavity.
Preferably, the needle removing mechanism comprises two rotating shafts, two swinging rods, two first springs, two idler wheels, two gears, two sliding rods, two racks, two lifting rods, two second springs, two guide blocks, two extension rods and two guide wheels, wherein the rotating shafts are connected to the inner walls of the two sides of the flow tube in a rotating mode, the swinging rods are fixedly connected to the rotating shafts in the rotating shafts, the swinging rods are connected with the idler wheels in an elastic mode through the first springs and the inner walls of the flow tube in an elastic mode, the two swinging rods are connected to one side, close to each other, of each other in a rotating mode, the two sliding rods are connected to the outer walls of the two sides of the flow tube in an interference fit mode, the sliding rods are connected to the inner portions of the flow tube in an sliding mode, the two racks are meshed with the two gears in an mutually mode, lifting rods are fixedly connected to the outer walls of the two sides of the control cavity in an elastic mode, the two lifting rods are connected to the two guide wheels in a sliding mode, the two guide rods are connected to the top of the two guide rods in an elastic mode, and the two guide rods are connected to the top of the two guide rods in an elastic mode.
Preferably, the liquid changing mechanism comprises a suction cylinder, a piston, an L-shaped rod, a circular liquid storage tank, a rotating block, a hydraulic box, a liquid inlet pipe and a liquid discharge pipe, wherein the suction cylinder is fixedly connected to the upper wall of a control box, the piston is connected in the suction cylinder in a sealing sliding manner, the L-shaped rod is fixedly connected to one side of a needle, which is close to the suction cylinder, of the needle, the L-shaped rod is fixedly connected with the piston, the circular liquid storage tank is arranged in the fixing disc, the rotating block is fixedly connected to the rotating rod, the rotating block is connected to the inner wall of the circular liquid storage tank in a sealing sliding manner, the hydraulic box is fixedly connected to one side wall, which is close to the suction cylinder, of the control box, and the hydraulic box is communicated with the inside of the suction cylinder through the liquid inlet pipe, and the circular liquid storage tank is communicated with the inside of the suction cylinder through the liquid discharge pipe.
Preferably, the exhaust mechanism comprises an exhaust port, an exhaust net, two third springs, a water-proof film and a plurality of conical blocks, wherein the exhaust port is formed in the upper portion of the liquid storage tank, the exhaust net is fixedly connected to the inside of the liquid storage tank, the lower wall of the exhaust net is elastically connected with the water-proof film through the two third springs, and the conical blocks are fixedly connected to the bottom of the water-proof film.
Preferably, the liquid inlet pipe and the liquid outlet pipe are internally provided with one-way valves.
Preferably, the hydraulic box is communicated with the circular liquid storage tank through a connecting pipe, and an on-off valve is arranged in the connecting pipe.
Preferably, the floating ring is connected in the liquid storage tank in a sliding way, a touch switch is arranged at a position, below the floating ring, in the liquid storage tank, a warning lamp is arranged on the outer wall of one side of the liquid storage tank, and the warning lamp is in an on state when the touch switch is extruded.
Compared with the prior art, the automatic liquid changing device for peritoneal dialysis has the advantages that:
1. According to the invention, the needle removing mechanism is arranged, when the dialysate flows through the flow tube, the friction force between the peripheral side dialysate and the inner wall of the flow tube enables the flow velocity of the middle dialysate in the flow tube to be larger than that of the peripheral side dialysate, so that the two swing rods are kept in an inclined state, and the needle head is always positioned in the dialysate bag; after the dialysate in this dialysate bag is flowed, two swinging arms swing to the level under the elasticity effect of first spring, and the rack is kept away from each other under the effect of gear this moment, and the leading wheel no longer butt in the bottom of guide block, syringe needle are downthehole displacement under the elasticity effect of second spring, extract in this dialysate bag automatically, need not the manual syringe needle of staff and extract, reduced work load, improved trading liquid efficiency, reduce the pollution that causes the syringe needle simultaneously.
2. According to the invention, the replacement liquid mechanism is arranged, and in the process of automatically pulling out the needle head each time, the pumped hydraulic oil can be extruded into the circular liquid storage tank to further push the rotating block to rotate, so that the rotating rod drives the rotating disc to rotate, and the dialysate bags hung on the rotating disc automatically rotate to the next one, thereby automatically replacing the used dialysate bags and unused dialysate bags, without manually replacing the dialysate bags by a worker, and further reducing the workload of the worker.
3. According to the invention, the exhaust mechanism is arranged, after the dialysate is changed each time, air generated in the liquid changing process is exhausted from the exhaust port above, the liquid level is in contact with the waterproof film, and the waterproof film is tightly extruded on the liquid level of the dialysate by the elastic force of the third spring, so that bubbles on the surface of the dialysate are punctured by the conical block, the air generated in the liquid changing process is efficiently removed, the air is prevented from entering the abdominal cavity, and the safety of patient treatment is ensured.
4. According to the invention, the floating ring is arranged, when the liquid level in the liquid storage cavity is too low, the touch switch can be extruded through the downward movement of the floating plate, the warning lamp is further turned on, the condition that the dialysate is not changed timely due to negligence of medical staff is avoided, and the possibility of medical accidents is reduced.
Drawings
FIG. 1 is a schematic perspective view of an automated fluid exchange device for peritoneal dialysis provided by the present invention;
FIG. 2 is a cross-sectional view of a reservoir in an automated fluid exchange device for peritoneal dialysis provided by the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
Fig. 4 is an enlarged view at B in fig. 2;
FIG. 5 is a cross-sectional view of a flow-through tube in an automated fluid exchange device for peritoneal dialysis provided by the present invention;
FIG. 6 is an enlarged view at C in FIG. 5;
FIG. 7 is a cross-sectional view of a holding pan in an automated fluid exchange device for peritoneal dialysis provided by the present invention;
Fig. 8 is a schematic view of another perspective view of an automated fluid exchange device for peritoneal dialysis according to the present invention.
In the figure, 1, a device body; 11. a liquid storage tank; 111. a floating ring; 112. a touch switch; 113. a warning light; 12. a fixed plate; 13. a rotating rod; 14. a rotating disc; 15. a hook; 2. a control box; 3. an infusion mechanism; 31. a control chamber; 32. an infusion tube; 33. a flow pipe; 34. a sealing collar; 35. a needle; 36. a needle removing mechanism; 361. a rotating shaft; 362. a swinging rod; 363. a first spring; 364. a roller; 365. a gear; 366. a slide bar; 367. a rack; 368. a lifting rod; 369. a second spring; 3610. a guide block; 3611. an extension rod; 3612. a guide wheel; 4. a liquid exchange mechanism; 41. a suction cylinder; 42. a piston; 43. an L-shaped rod; 44. a circular reservoir; 45. a rotating block; 46. a hydraulic box; 47. a liquid inlet pipe; 48. a liquid discharge pipe; 5. an exhaust mechanism; 51. an exhaust port; 52. an exhaust screen; 53. a third spring; 54. a water-blocking film; 55. a conical block; 6. and (5) connecting pipes.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.
As shown in fig. 1-8, an automated fluid exchange device for peritoneal dialysis, comprising:
The device comprises a device body 1, wherein a liquid storage tank 11 is fixedly connected above the device body 1, a fixed disc 12 is fixedly connected above the liquid storage tank 11, a rotating rod 13 is rotatably connected to the fixed disc 12, a rotating disc 14 is fixedly connected to the top of the rotating rod 13, and a plurality of hooks 15 are fixedly connected to a lower wall array of the rotating disc 14;
One side fixedly connected with control box 2 of liquid reserve tank 11, the inside of control box 2 is equipped with the infusion mechanism 3 that is used for carrying the dislysate, and the top fixedly connected with of control box 2 is used for carrying out the trading liquid mechanism 4 of trading liquid to the dislysate voluntarily, and the inside of liquid reserve tank 11 is equipped with and is used for carrying out the exhaust mechanism 5 of air.
The infusion mechanism 3 comprises a control cavity 31, an infusion tube 32, a runner tube 33, a sealing sleeve ring 34, a needle 35 and a needle removing mechanism 36, wherein the control cavity 31 is arranged in the control box 2, the infusion tube 32 is fixedly connected to the control cavity 31, the infusion tube 32 is communicated with the interior of the liquid storage box 11, the runner tube 33 is fixedly connected to the upper part of the infusion tube 32, the sealing sleeve ring 34 is fixedly connected to the top of the runner tube 33, the needle 35 is connected to the upper part of the control box 2 in a penetrating and sliding manner, the bottom of the needle 35 is connected to the inner wall of the sealing sleeve ring 34 in a sliding manner, the bottom of the needle 35 is communicated with the infusion tube 32 through the sealing sleeve ring 34 and the runner tube 33, and the needle removing mechanism 36 for automatically removing the needle is arranged in the control cavity 31.
In actual use, the needle 35 can be inserted into the dialysate bag, so that the dialysate in the dialysate bag can flow into the runner tube 33 through the needle 35 and the sealing collar 34, and further flow into the liquid storage tank 11 through the liquid transfer tube 32, and during dialysis, the device body 1 can convey the dialysate in the liquid storage tank 11 into the abdominal cavity of a patient, so as to perform peritoneal dialysis treatment on the patient.
The needle removing mechanism 36 comprises two rotating shafts 361, two swinging rods 362, two first springs 363, two rollers 364, two gears 365, two sliding rods 366, two racks 367, two lifting rods 368, two second springs 369, two guide blocks 3610, two extension rods 3611 and two guide wheels 3612, wherein the rotating shafts 361 are respectively and rotationally connected to the inner walls of the two sides of the flow tube 33, the swinging rods 362 are respectively and fixedly connected to the two rotating shafts 361, the two swinging rods 362 are respectively and elastically connected with the inner walls of the flow tube 33 through the first springs 363, the rollers 364 are respectively and rotationally connected to one sides of the two swinging rods 362, which are close to each other, of the two rotating shafts 361, the gears 365 are respectively and in interference fit with the two rotating rods 367, the two sliding rods 366 are respectively and slidingly connected with the sliding rods 366 on the outer walls of the two sides of the flow tube 33, the two sliding rods 366 are respectively and mutually meshed with the two gears 3673, the two racks 3673 are respectively and fixedly connected with the two guide rods 3673, the two guide rods 3673 are respectively and fixedly connected with the two needle rods 3673, the two guide rods 3673 are respectively and fixedly connected with the two guide rods 368, the two guide rods 3673 are respectively, and the two guide rods 3673 are respectively and the inner walls are respectively connected to the inner walls of the two sliding rods 3633, and the inner walls of the two guide rods are respectively, and the two guide rods 36are respectively, and the two.
When the two rollers 364 enable the dialysate to flow from the middle position of the runner pipe 33, the two rollers 364 are driven to rotate, so that the dialysate above the rollers 364 flows from two sides to the middle when flowing to the rollers 364, the middle flow rate of the dialysate is ensured to be greater than the peripheral flow rate, and the two swing rods 362 are ensured to be in an inclined downward state.
The diameters above and below the flow tube 33 are both larger than the middle diameter, so that the flow rate of the dialysate is faster through the reduction of the sectional area of the flow passage in the process of flowing the dialysate from the upper position to the middle position of the flow tube 33, the flow rate is ensured to impact the swing rod 362 to keep an inclined state, and the ejection of the needle 35 is ensured.
According to the invention, the needle removing mechanism 36 is arranged, when the dialysis fluid in the dialysis fluid bag is used, the dialysis fluid can be introduced only by pressing the needle 35 into the dialysis fluid bag, when the dialysis fluid flows through the flow tube 33, the flow rate of the middle dialysis fluid in the flow tube 33 is greater than the flow rate of the peripheral dialysis fluid due to friction force between the peripheral dialysis fluid and the inner wall of the flow tube 33, so that the two swing rods 362 are kept in an inclined state, the two racks 367 are in a state of being close to each other under the action of the two gears 365, at the moment, the guide wheels 3612 are in contact with the bottom of the guide block 3610 all the time, so that the needle 35 is always at the top and is in the dialysis fluid bag, when the dialysis fluid in the dialysis fluid bag is finished, the dialysis fluid does not flow through the flow tube 33, the two swing rods 362 swing to the horizontal under the action of the elastic force of the first spring 363, the two swing rods 367 are mutually far away from each other under the action of the gears 365, the guide wheels are not in contact with the guide blocks 35, the needle 35 is not required to be in contact with the bottom of the guide blocks, the needle 35 is not required to be in contact with the needle 35, and the manual pollution of the needle 35 is reduced.
The liquid changing mechanism 4 comprises a suction cylinder 41, a piston 42, an L-shaped rod 43, a circular liquid storage groove 44, a rotating block 45, a hydraulic box 46, a liquid inlet pipe 47 and a liquid discharge pipe 48, wherein the suction cylinder 41 is fixedly connected to the upper wall of the control box 2, the piston 42 is connected in the suction cylinder 41 in a sealing sliding manner, the L-shaped rod 43 is fixedly connected to one side of the needle 35, which is close to the suction cylinder 41, the L-shaped rod 43 is fixedly connected with the piston 42, the circular liquid storage groove 44 is arranged in the fixed disc 12, the rotating block 45 is fixedly connected to the rotating rod 13, the rotating block 45 is connected to the inner wall of the circular liquid storage groove 44 in a sealing sliding manner, the hydraulic box 46 is fixedly connected to one side wall, which is close to the suction cylinder 41, of the control box 2 is communicated with the inside of the suction cylinder 41 through the liquid inlet pipe 47, and the circular liquid storage groove 44 is communicated with the inside of the suction cylinder 41 through the liquid discharge pipe 48.
Wherein, check valves are arranged in the liquid inlet pipe 47 and the liquid outlet pipe 48, when the piston 42 moves upwards, the hydraulic oil in the hydraulic box 46 can only be pumped out through the check valve in the liquid inlet pipe 47, and when the piston 42 moves downwards, the pumped hydraulic oil can only be discharged into the circular liquid storage tank 44 through the check valve in the liquid outlet pipe 48.
The hydraulic box 46 is communicated with the circular liquid storage tank 44 through the connecting pipe 6, an on-off valve is arranged in the connecting pipe 6, and after peritoneal dialysis is completed, hydraulic oil in the circular liquid storage tank 44 flows back into the hydraulic box 46 through opening of the on-off valve, so that next dialysis is guaranteed.
Aiming at the problems that in the prior art, when the dialysate is changed, a used dialysate bag needs to be manually removed and a next dialysate bag is hung for subsequent peritoneal dialysis, the invention is provided with the replacement liquid mechanism 4, when the needle 35 is inserted into the dialysate bag each time, the piston 42 is driven to move upwards in the suction cylinder 41 through the L-shaped rod 43, and then hydraulic oil in the hydraulic box 46 is sucked and pumped out, in the process of automatically extracting the needle 35 each time, the pumped hydraulic oil can be extruded into the circular liquid storage groove 44, the rotating block 45 is further pushed to rotate through the performance that the hydraulic oil is difficult to compress, so that the rotating rod 13 drives the rotating disc 14 to rotate, and the dialysate bag hung on the rotating disc 14 automatically rotates to the next, thereby automatically replacing the used dialysate bag and the unused dialysate bag, further reducing the workload of workers without manually replacing the dialysate bag by workers.
The exhaust mechanism 5 comprises an exhaust port 51, an exhaust net 52, two third springs 53, a waterproof film 54 and a plurality of conical blocks 55, wherein the exhaust port 51 is formed above the liquid storage tank 11, the exhaust net 52 is fixedly connected to the inside of the liquid storage tank 11, the waterproof film 54 is elastically connected to the lower wall of the exhaust net 52 through the two third springs 53, and the plurality of conical blocks 55 are fixedly connected to the bottom of the waterproof film 54.
Aiming at the problem that air cannot be efficiently removed after the exchange of the dialysate in the prior art, so that air is easy to enter the abdominal cavity of a patient in the peritoneal dialysis process, the invention is provided with the exhaust mechanism 5, after the dialysate is exchanged each time, the speed of the dialysate input into the abdominal cavity can be slowed down, but the flowing speed of the dialysate above is unchanged, so that the liquid level of the dialysate in the liquid storage tank 11 is raised, the air generated in the liquid exchange process is discharged from the air outlet 51 above, the liquid level of the dialysate is continuously raised, the liquid level is contacted with the water-proof film 54, the water-proof film 54 is tightly extruded on the liquid level of the dialysate by the elastic force of the third spring 53, so that bubbles on the surface of the dialysate are punctured by the conical block 55, the air generated in the liquid exchange process is effectively removed, the air is prevented from entering the abdominal cavity, and the safety of the treatment of the patient is ensured.
In addition, sliding connection has the floating collar 111 in the liquid reserve tank 11, the position that lies in the floating collar 111 below in the liquid reserve tank 11 is equipped with and touches and press the switch 112, is equipped with warning light 113 on the outer wall of one side of liquid reserve tank 11, touches and presses the switch 113 in the open state when pressing the switch 112, when the liquid level in the liquid reserve tank 11 is too low, accessible floating collar 111 moves down and presses the switch 112, further opens warning light 113, avoids medical personnel's carelessness to lead to the dislysate to trade the liquid untimely, reduces the possibility of medical accident emergence.
The invention can explain its functional principle by the following modes of operation:
when in use, the needle 35 can be inserted into the dialysate bag, so that the dialysate in the dialysate bag can flow into the runner pipe 33 through the needle 35 and the sealing collar 34, and further flows into the liquid storage tank 11 through the transfusion pipe 32, and in the dialysis process, the device body 1 can convey the dialysate in the liquid storage tank 11 into the abdominal cavity of a patient, and peritoneal dialysis treatment is carried out on the patient;
When the dialysate flows through the flow tube 33, the flow rate of the middle dialysate in the flow tube 33 is greater than the flow rate of the peripheral dialysate, so that the two swing rods 362 are kept in an inclined state, the two racks 367 are in a state of being close to each other under the action of the two gears 365, and at the moment, the guide wheels 3612 are abutted against the bottoms of the guide blocks 3610, so that the needle 35 is always in the dialysate bag; when the dialysate in the dialysate bag is finished, the dialysate does not flow through the circulation pipe 33, the two swing rods 362 swing to the horizontal under the action of the elastic force of the first spring 363, at this time, the racks 367 are mutually far away under the action of the gears 365, the guide wheels 3612 are not abutted against the bottoms of the guide blocks 3610, the needle 35 is downwardly displaced under the action of the elastic force of the second spring 369, and the needle is automatically pulled out from the dialysate bag;
When the needle 35 is inserted into the dialysate bag each time, the piston 42 is driven by the L-shaped rod 43 to move upwards in the suction cylinder 41, so that hydraulic oil in the hydraulic box 46 is sucked out, the sucked hydraulic oil can be extruded into the circular liquid storage groove 44 in the process of automatically extracting the needle 35 each time, the rotating block 45 is further pushed to rotate, the rotating rod 13 drives the rotating disc 14 to rotate, the dialysate bag hung on the rotating disc 14 automatically rotates to the next, and the used dialysate bag and the unused dialysate bag are automatically replaced;
According to the invention, after the dialysate in one dialysate bag is used up, the needle 35 can be automatically pulled out, and meanwhile, the next unused dialysate bag is automatically rotated to be right above the needle 35, so that the needle 35 is only required to be inserted for liquid exchange in peritoneal dialysis treatment, the working efficiency is greatly improved, meanwhile, the contact with the needle 35 is reduced, and the pollution to the needle 35 is reduced;
Meanwhile, after the liquid exchange is completed each time, the liquid level of the dialysate in the liquid storage tank 11 is only required to be raised, air generated in the liquid exchange process can be discharged from the air outlet 51 above, and meanwhile, the waterproof film 54 is tightly extruded on the liquid level of the dialysate through the elastic force of the third spring 53, so that bubbles on the surface of the dialysate are punctured through the conical block 55, and the air generated in the liquid exchange process is efficiently removed.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (4)
1. An automated fluid exchange device for peritoneal dialysis, comprising:
The device comprises a device body (1), wherein a liquid storage tank (11) is fixedly connected to the upper side of the device body (1), a fixed disc (12) is fixedly connected to the upper side of the liquid storage tank (11), a rotating rod (13) is rotatably connected to the fixed disc (12), a rotating disc (14) is fixedly connected to the top of the rotating rod (13), and a plurality of hooks (15) are fixedly connected to the lower wall array of the rotating disc (14);
One side of the liquid storage tank (11) is fixedly connected with a control box (2), an infusion mechanism (3) for conveying dialysate is arranged in the control box (2), a liquid exchange mechanism (4) for automatically exchanging the dialysate is fixedly connected above the control box (2), and an exhaust mechanism (5) for exhausting air is arranged in the liquid storage tank (11);
The infusion mechanism (3) comprises a control cavity (31), an infusion tube (32), a flow tube (33), a sealing sleeve ring (34), a needle (35) and a needle removing mechanism (36), wherein the control cavity (31) is arranged in the control box (2), the infusion tube (32) is fixedly connected to the control cavity (31), the infusion tube (32) is communicated with the interior of the liquid storage box (11), the flow tube (33) is fixedly connected to the upper part of the infusion tube (32), the sealing sleeve ring (34) is fixedly connected to the top of the flow tube (33), the needle (35) is connected to the upper part of the control box (2) in a penetrating and sliding manner, the bottom of the needle (35) is connected to the inner wall of the sealing sleeve ring (34), the bottom of the needle (35) is communicated with the infusion tube (32) through the sealing sleeve ring (34) and the flow tube (33), and the needle removing mechanism (36) for automatically removing the needle is arranged in the control cavity (31);
The liquid changing mechanism (4) comprises a suction cylinder (41), a piston (42), an L-shaped rod (43), a circular liquid storage tank (44), a rotating block (45), a hydraulic box (46), a liquid inlet pipe (47) and a liquid discharge pipe (48), wherein the suction cylinder (41) is fixedly connected to the upper wall of a control box (2), the piston (42) is connected in the suction cylinder (41) in a sealing sliding manner, one side, close to the suction cylinder (41), of a needle (35) is fixedly connected with the L-shaped rod (43), the L-shaped rod (43) is fixedly connected with the piston (42), the circular liquid storage tank (44) is arranged in the fixed disc (12), the rotating block (45) is fixedly connected to the rotating block (13), the rotating block (45) is connected to the inner wall of the circular liquid storage tank (44) in a sealing sliding manner, the hydraulic box (46) is fixedly connected to one side wall, close to the suction cylinder (41), of the control box (2) is communicated with the inside of the suction cylinder (41) through the liquid inlet pipe (47), and the circular liquid storage tank (44) is communicated with the inside of the circular liquid storage tank (41) through the liquid discharge pipe (48);
check valves are arranged in the liquid inlet pipe (47) and the liquid outlet pipe (48);
the hydraulic box (46) is communicated with the circular liquid storage tank (44) through a connecting pipe (6), and an on-off valve is arranged in the connecting pipe (6).
2. The automated fluid changing device for peritoneal dialysis according to claim 1, wherein the needle removing mechanism (36) comprises two rotating shafts (361), two swinging rods (362), two first springs (363), two rollers (364), two gears (365), two sliding rods (366), two racks (367), two lifting rods (368), two second springs (369), two guide blocks (3610), two extension rods (3611) and two guide wheels (3612), wherein rotating shafts (361) are rotatably connected to inner walls of two sides of the flow tube (33), swinging rods (362) are fixedly connected to the inner walls of the flow tube (33), the two swinging rods (362) are elastically connected to the inner walls of the flow tube (33) through the first springs (363), rollers (364) are rotatably connected to one sides of the two swinging rods (362) close to each other, gears (365) are in interference fit with the two rotating shafts (361), the two sliding rods (367) are slidably connected to outer walls of the two sliding rods (367), the two sliding rods (366) are slidably connected to the two sliding rods (366) and the two sliding rods (366) are respectively meshed with the two sliding rods (366), needle (35) are located on the both sides outer wall in control chamber (31) all fixedly connected with lifter (368), two lifter (368) all sliding connection in the inner wall of control chamber (31), two lifter (368) all pass through second spring (369) and the top elastic connection of control chamber (31), two lifter (368) the equal fixedly connected with guide block (3610) of lower wall, two equal fixedly connected with extension pole (3611) of top of slide bar (366), two the top of extension pole (3611) is all rotated and is connected with leading wheel (3612).
3. The automatic liquid exchange device for peritoneal dialysis according to claim 1, wherein the exhaust mechanism (5) comprises an exhaust port (51), an exhaust net (52), two third springs (53), a water-proof film (54) and a plurality of conical blocks (55), the exhaust port (51) is formed above the liquid storage tank (11), the exhaust net (52) is fixedly connected to the inside of the liquid storage tank (11), the water-proof film (54) is elastically connected to the lower wall of the exhaust net (52) through the two third springs (53), and the conical blocks (55) are fixedly connected to the bottom of the water-proof film (54).
4. The automatic liquid exchange device for peritoneal dialysis according to claim 1, wherein a floating ring (111) is connected in the liquid storage tank (11) in a sliding manner, a touch switch (112) is arranged at a position, located below the floating ring (111), in the liquid storage tank (11), a warning lamp (113) is arranged on the outer wall of one side of the liquid storage tank (11), and the warning lamp (113) is in an on state when the touch switch (112) is extruded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311574191.8A CN117357726B (en) | 2023-11-23 | 2023-11-23 | Automatic liquid changing device for peritoneal dialysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311574191.8A CN117357726B (en) | 2023-11-23 | 2023-11-23 | Automatic liquid changing device for peritoneal dialysis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117357726A CN117357726A (en) | 2024-01-09 |
| CN117357726B true CN117357726B (en) | 2024-05-24 |
Family
ID=89398630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311574191.8A Active CN117357726B (en) | 2023-11-23 | 2023-11-23 | Automatic liquid changing device for peritoneal dialysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117357726B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008000552A (en) * | 2006-06-26 | 2008-01-10 | Terumo Corp | Peritoneal dialyzer, peritoneal dialyzing set, and method of controlling peritoneal dialyzer |
| CN204655618U (en) * | 2015-03-05 | 2015-09-23 | 昆山韦睿医疗科技有限公司 | A kind of PDS of many liquid bag and control joint |
| CN110404130A (en) * | 2019-06-06 | 2019-11-05 | 南京市江宁医院 | Peritoneal dialysis changing liquid automatically device |
| CN214633207U (en) * | 2020-12-29 | 2021-11-09 | 溧阳市人民医院 | Automatic liquid changing device for peritoneal dialysis |
| CN114904080A (en) * | 2022-05-05 | 2022-08-16 | 河南中医药大学第一附属医院 | Automatic liquid changing device for peritoneal dialysis of children |
| CN114949435A (en) * | 2022-05-13 | 2022-08-30 | 梁丽娜 | Portable infusion set is used in paediatrics nursing |
| CN115400277A (en) * | 2022-08-12 | 2022-11-29 | 广西医科大学第二附属医院(广西医科大学第二临床医学院) | Automatic liquid changing device for peritoneal dialysis |
-
2023
- 2023-11-23 CN CN202311574191.8A patent/CN117357726B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008000552A (en) * | 2006-06-26 | 2008-01-10 | Terumo Corp | Peritoneal dialyzer, peritoneal dialyzing set, and method of controlling peritoneal dialyzer |
| CN204655618U (en) * | 2015-03-05 | 2015-09-23 | 昆山韦睿医疗科技有限公司 | A kind of PDS of many liquid bag and control joint |
| CN110404130A (en) * | 2019-06-06 | 2019-11-05 | 南京市江宁医院 | Peritoneal dialysis changing liquid automatically device |
| CN214633207U (en) * | 2020-12-29 | 2021-11-09 | 溧阳市人民医院 | Automatic liquid changing device for peritoneal dialysis |
| CN114904080A (en) * | 2022-05-05 | 2022-08-16 | 河南中医药大学第一附属医院 | Automatic liquid changing device for peritoneal dialysis of children |
| CN114949435A (en) * | 2022-05-13 | 2022-08-30 | 梁丽娜 | Portable infusion set is used in paediatrics nursing |
| CN115400277A (en) * | 2022-08-12 | 2022-11-29 | 广西医科大学第二附属医院(广西医科大学第二临床医学院) | Automatic liquid changing device for peritoneal dialysis |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117357726A (en) | 2024-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107224632B (en) | Self-adaptive continuous infusion apparatus and method for completing multi-bottle continuous infusion by using same | |
| CN206319704U (en) | Can automatic disinfection door handle | |
| CN117357726B (en) | Automatic liquid changing device for peritoneal dialysis | |
| CN109589436A (en) | A kind of haemodialysis control unit automatic disinfection device | |
| CN201324415Y (en) | Quick air-discharging device of transfusion device | |
| CN202761622U (en) | Surgical debridement table | |
| CN212703523U (en) | Quantitative flusher for emergency department ward | |
| CN209827712U (en) | Bone marrow filter | |
| CN112933334A (en) | Infusion device for realizing automatic hemostasis by utilizing hydraulic pressure of infusion tube | |
| CN213284092U (en) | Medical treatment is with portable album of liquid device | |
| CN201603213U (en) | Quickly exhausting infusion system | |
| CN113476676A (en) | Nephrology department dialysate treatment device | |
| CN208525565U (en) | A kind of slidingtype regulation dropper of multifunctional adaptive continuous transfusion system | |
| CN202777250U (en) | No-residue self-exhaust infusion apparatus drip cup assembly | |
| CN202526683U (en) | Disposable liquid-stopping flow-slowering transfusion device | |
| CN220110095U (en) | 3000ml three-layer co-extrusion flushing fluid bag | |
| CN221309109U (en) | High-level filtering transfusion device | |
| CN207455138U (en) | A kind of portable butter oiling machine | |
| CN221672912U (en) | Urinary system flushing pipe | |
| CN220714477U (en) | Body fluid drainage one-way control device for hepatobiliary surgery | |
| CN218685517U (en) | Portable infusion device capable of being placed and carried at will | |
| CN213642038U (en) | Be applied to ophthalmic nursing with eyewash ware | |
| CN220175729U (en) | Cleaning device | |
| CN217091627U (en) | Bladder irrigation tube | |
| CN221384574U (en) | Closed sputum aspirator flushing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240425 Address after: No. 718, south 2nd West Road, Luotuo street, Zhenhai District, Ningbo City, Zhejiang Province Applicant after: Ningbo Zhenhai District People's Hospital Medical Group Country or region after: China Address before: 315031 No.3 Dingxin Road, Cicheng Town, Jiangbei District, Ningbo City, Zhejiang Province Applicant before: Ningbo Jiangbei Fuwode Medical Equipment Co.,Ltd. Country or region before: China |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |