CN215995052U - A consumptive material box for peritoneal dialysis system - Google Patents
A consumptive material box for peritoneal dialysis system Download PDFInfo
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- CN215995052U CN215995052U CN202121200055.9U CN202121200055U CN215995052U CN 215995052 U CN215995052 U CN 215995052U CN 202121200055 U CN202121200055 U CN 202121200055U CN 215995052 U CN215995052 U CN 215995052U
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Abstract
The utility model relates to the technical field of peritoneal dialysis, and discloses a consumable box for a peritoneal dialysis system, which comprises: a body end pipeline for connecting with the abdominal cavity of the human body; the drainage pipeline is used for being connected with the waste liquid collecting device and is provided with a negative pressure cavity; a liquid supply pipeline for connecting the liquid supply bag; the body end pipeline, the drainage pipeline and the liquid supply pipeline are arranged side by side and connected through medical connecting pieces to form an intercommunicating pipeline. The utility model has the advantages of simple structure, lower cost, convenient use and longer service life.
Description
Technical Field
The utility model relates to the technical field of peritoneal dialysis equipment, in particular to a consumable box for a peritoneal dialysis system.
Background
Peritoneal Dialysis (PD) is to regularly and regularly inject prepared dialysate into the peritoneal cavity of a patient through a catheter by utilizing the characteristic that the peritoneum is used as a semi-permeable membrane, and because the concentration gradient difference of solutes exists at two sides of the peritoneum, the solute at one side with high concentration moves to the other side with low concentration (diffusion effect); the water moves from the hypotonic side to the hypertonic side (osmosis). The peritoneal dialysis solution is continuously replaced to achieve the purposes of removing in vivo metabolites and toxic substances and correcting water and electrolyte balance disorder. Most of peritoneal dialysis (peritoneal dialysis for short) patients in China are ambulatory continuous peritoneal dialysis (CAPD) patients. CAPD requires 3-4 exchanges of peritoneal dialysis fluid daily, which seriously affects the normal working life of the patient.
With the continuous improvement of the economic level of China and the pursuit of the freedom of life of patients, the selection of more expensive Automatic Peritoneal Dialysis (APD) treatment becomes a new trend. APD broadly refers to all treatments performed by automated machines instead of manually performing a peritoneal dialysis procedure. It can be divided into 4 modes of Nighttime Intermittent Peritoneal Dialysis (NIPD), Intermittent Peritoneal Dialysis (IPD), Continuous Cycle Peritoneal Dialysis (CCPD) and Tidal Peritoneal Dialysis (TPD). Among these 4 modes, NIPD is performed only at night, the patient is in a dry abdominal state during the day, the number of dialysis connection operations is minimized, and the degree of freedom provided to the patient is maximized, which is the most common APD mode.
The present invention is directed to a consumable cartridge for an Automated Peritoneal Dialysis (APD) system for use in clinical treatments involving fluids that are administered parenterally for peritoneal dialysis. Typically, in peritoneal dialysis machines, it is necessary to use a labyrinth consumable cartridge to control the delivery of the fluid. Referring to fig. 1, fig. 1 is a first-generation labyrinth consumable box structure commonly used at present, a first pump chamber 1 and a second pump chamber 2 of the labyrinth consumable box used for conveying liquid in the prior art are located on the same side, the area of the consumable box is relatively large, the consumable box can only be made into a flat shape, and is not convenient to install and use, and the structure of the corresponding peritoneal dialysis equipment used for loading the labyrinth consumable box also needs to be made large, so that the equipment volume is not compact enough.
Referring to fig. 2, fig. 2 is a second generation labyrinth consumable box structure commonly used at present, wherein, the two pump chambers of the first pump chamber 1 and the second pump chamber 2 for conveying liquid are respectively located at two sides of the labyrinth consumable box, the first pump chamber 1 is arranged at a first side surface, the second pump chamber 2 is arranged at a second side surface, the first side surface and the second side surface are located at the front and the back of the labyrinth consumable box, the surface area of the largest side surface of the labyrinth consumable box is greatly reduced, so that the labyrinth consumable box can be more compact, and is convenient to install and use.
Although the second generation labyrinth type consumable box structure can reduce the surface area of the largest side surface of the consumable box, the labyrinth type design is adopted, the structure is complex, the cost is high, the use is inconvenient and the service life is short.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a consumable box for a peritoneal dialysis system, which has the advantages of simple structure, lower cost, convenient use and longer service life.
In order to achieve the above technical effects, the present invention provides a consumable cartridge for a peritoneal dialysis system, comprising:
a body end pipeline for connecting with the abdominal cavity of the human body;
the drainage pipeline is used for being connected with the waste liquid collecting device and is provided with a negative pressure cavity;
a liquid supply pipeline for connecting the liquid supply bag;
the body end pipeline, the drainage pipeline and the liquid supply pipeline are arranged side by side and connected through medical connecting pieces to form an intercommunicating pipeline.
As an improvement of the proposal, the device also comprises a supplement pipeline connected with the supplement medicine bag and a last pipeline connected with the last liquid bag;
the body end pipeline, the drainage pipeline, the liquid supply pipeline, the supplement pipeline and the last pipeline are arranged side by side and connected through medical connectors to form an intercommunicating pipeline.
As an improvement of the scheme, the end parts of the body end pipeline, the drainage pipeline, the liquid supply pipeline, the supplement pipeline and the last pipeline are provided with five-way pipes, medical connecting pieces are arranged on the five-way pipes, and the body end pipeline, the drainage pipeline, the liquid supply pipeline, the supplement pipeline and the last pipeline are connected through the medical connecting pieces to form an intercommunicating pipeline.
As an improvement of the scheme, the medical connecting piece is a Robert clamp, a pinch valve, an electromagnetic valve or a linear motor.
As an improvement of the scheme, the drainage pipeline comprises a first drainage branch pipeline, a second drainage branch pipeline and a negative pressure connector end, the first drainage branch pipeline is communicated with one end of the negative pressure cavity, and the second drainage branch pipeline and the negative pressure connector end are communicated with the other end of the negative pressure cavity.
As an improvement of the scheme, the first drainage branch pipeline is provided with a one-way valve.
As an improvement of the scheme, the body end pipeline, the liquid supply pipeline, the supplement pipeline and the last pipeline are medical hoses.
As an improvement of the scheme, the pipe diameters of the human body end pipeline, the liquid supply pipeline, the supplement pipeline, the last pipeline and the drainage pipeline are 3-10 mm.
The implementation of the utility model has the following beneficial effects:
the utility model provides a consumable box for a peritoneal dialysis system, which comprises a body end pipeline, a drainage pipeline and a liquid supply pipeline, wherein the body end pipeline, the drainage pipeline and the liquid supply pipeline are arranged side by side, and an intercommunicating pipeline is formed among the body end pipeline, the drainage pipeline and the liquid supply pipeline. The utility model adopts the pipelines which are designed side by side instead of the labyrinth pipelines, thereby greatly simplifying the fluid flow path, simplifying the structure of the consumable box and further reducing the manufacturing cost and the maintenance cost of the consumable box. Moreover, the consumable box is convenient to use and long in service life, and is beneficial to reducing the cost of peritoneal dialysis treatment and benefiting patients.
In addition, the drainage pipeline is provided with the negative pressure cavity, and the consumable box can be suitable for various peritoneal dialysis therapies, in particular to gravity-power mixed peritoneal dialysis therapies. Wherein, the injection of the dialysate from the liquid supply bag to the abdominal cavity of the human body through the liquid supply pipeline is completed by utilizing the gravity; and the drainage about the waste liquid then utilizes power to realize the waste liquid drainage, and power does not participate in whole drainage process, only lets power intermittent type nature's intervention when needs, and the negative pressure cavity can provide the continuation negative pressure, and abdominal cavity's liquid passes through in the drainage pipeline constantly drains waste liquid collection device. Therefore, the consumable box has wide application range, strong practicability and good market prospect.
Drawings
FIG. 1 is a schematic view illustrating a structure of a labyrinth type consumable cartridge;
FIG. 2 is a schematic view of another prior art labyrinth type consumable cartridge;
FIG. 3 is a schematic structural diagram of a consumable cartridge according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of another embodiment of the consumable cartridge of the present invention;
FIG. 5 is a schematic view of an exploded structure of the consumable cartridge of FIG. 4.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below.
Referring to fig. 3, the present invention provides an embodiment of a consumable cartridge for a peritoneal dialysis system comprising:
a liquid supply line 10 for connecting to the liquid supply bag;
a drainage line 20 for connection to a waste liquid collection device;
a body end conduit 30 for connection to the abdominal cavity of a human body;
the liquid supply pipeline 10, the drainage pipeline 20 and the human body end pipeline 30 are arranged side by side, and the human body end pipeline 10, the drainage pipeline 20 and the liquid supply pipeline 30 are connected through a medical connecting piece 60 to form an intercommunicating pipeline.
The utility model adopts the pipelines which are designed side by side instead of the labyrinth pipelines, thereby greatly simplifying the fluid flow path, simplifying the structure of the consumable box and further reducing the manufacturing cost and the maintenance cost of the consumable box. Moreover, the consumable box is convenient to use and long in service life, and is beneficial to reducing the cost of peritoneal dialysis treatment and benefiting patients.
The drainage pipeline 20 is provided with the negative pressure cavity 21, and the consumable box can be suitable for various peritoneal dialysis therapies, in particular to gravity-power mixed peritoneal dialysis therapies. Wherein, the injection of the dialysate from the liquid supply bag to the abdominal cavity of the human body through the liquid supply pipeline is completed by utilizing the gravity; and about the drainage of waste liquid, then utilize power to realize the waste liquid drainage, and power does not participate in whole drainage process, only lets power intermittent type nature's intervention when needs, and negative pressure cavity 21 can provide the continuation negative pressure, and abdominal cavity's liquid passes through in drainage pipeline constantly drains waste liquid collection device. Therefore, the consumable box has wide application range, strong practicability and good market prospect.
Referring to fig. 4, the present invention provides another embodiment of a consumable cartridge for a peritoneal dialysis system comprising:
a liquid supply line 10 for connecting to the liquid supply bag;
a drainage line 20 for connection to a waste liquid collection device;
a body end conduit 30 for connection to the abdominal cavity of a human body;
a supplement pipeline 40 for connecting with the supplement medicine bag;
a last tubing 50 for connection to a last fluid bag;
the body end pipeline 10, the drainage pipeline 20, the liquid supply pipeline 30, the supplement pipeline 40 and the last pipeline 50 are arranged side by side, and the body end pipeline 10, the drainage pipeline 20, the liquid supply pipeline 30, the supplement pipeline 40 and the last pipeline 50 are connected through medical connectors to form an intercommunicating pipeline. The existing consumable box mostly adopts a labyrinth type consumable box in order to achieve a good dialysis effect. However, the consumable box is simple in structure, only comprises five pipelines, and can be arranged side by side.
Preferably, the ends of the liquid supply pipeline 10, the drainage pipeline 20, the human body end pipeline 30, the supplement pipeline 40 and the last pipeline 50 are provided with five-way pipes, medical pipe clamps are arranged on the five-way pipes, and the liquid supply pipeline 10, the drainage pipeline 20, the human body end pipeline 30, the supplement pipeline 40 and the last pipeline 50 are connected through the medical pipe clamps 60 to form an intercommunicating pipeline.
Preferably, the medical coupling 60 is a Robert clamp, pinch valve, solenoid valve, or linear motor, but is not limited thereto. More preferably, the medical connector 60 is a robert clamp.
Further, the drainage pipeline 20 of the present invention is provided with a negative pressure cavity 21, the drainage pipeline 20 includes a first drainage branch pipeline 201A, a second drainage branch pipeline 201B and a negative pressure interface end 202, the first drainage branch pipeline 201A is communicated with one end of the negative pressure cavity 21, and the second drainage branch pipeline 201B and the negative pressure interface end 202 are communicated with the other end of the negative pressure cavity 21. The consumable cartridge is connected to a negative pressure generator through a negative pressure interface end 202 on the negative pressure chamber, thereby applying a variable negative pressure to the negative pressure chamber. The end of the first drainage branch pipe 201A is provided with a one-way valve which is connected with a waste liquid collecting device.
The human body end pipeline, the liquid supply pipeline, the supplement pipeline and the last pipeline are medical hoses. For example: PVC or PU or PP, silicone tubing, and the like, but are not limited thereto.
Preferably, the pipe diameters of the body end pipeline, the liquid supply pipeline, the supplement pipeline, the last pipeline and the drainage pipeline are 3-10 mm, and the control optimization of the flow rate of dialysate introduced into the abdominal cavity of the human body and the flow rate of waste liquid discharged from the abdominal cavity of the human body to the waste liquid collecting device can be matched through the design of the pipe diameters, so that the curative effect of peritoneal dialysis is ensured.
With reference to fig. 5, from right to left, the robert clamps include a first robert clamp 601, a second robert clamp 602, a third robert clamp 603, a fourth robert clamp 604, and a fifth robert clamp 605.
In the peritoneal dialysis system, the height of the liquid supply bag from the ground is L1, the height of the human abdominal cavity from the ground is L2, the height of the supplementary medicine bag from the ground is L3, the height of the last medicine bag from the ground is L3, the height of the waste liquid collecting device from the ground is L4, and the height of the consumable box from the ground is L5.
And (3) an injection stage: the third robert clamp 603 and the fourth robert clamp 604 are opened, and the liquid supply line 10 and the human body end line 30 are connected. Under the action of gravitational potential energy of the height difference of L1-L2, the liquid flows into the abdominal cavity of the human body from the liquid supply bag.
The first weighing unit is used for weighing the real-time weight of the liquid supply bag, and the weight of the liquid supply bag is monitored in real time through the first weighing unit. When the set value reaches a certain range, the system closes the third and fourth robert clamps 603 and 604 to complete the injection.
And (3) a supplement stage: the second and third robert clamps 602 and 603 are opened and the replenishment line 40 and the supply line 10 are connected. Under the gravity action of the height difference of L3-L1, the liquid flows into the liquid supply bag from the supplement medicine bag.
And monitoring the weight of the liquid supply bag in real time through the first weighing unit. Comparing the recipe, reaching the set value, the system closes the second robert clamp 602 and the third robert clamp 603, and the injection is completed.
The final supplement stage: the first and third robert clamps 601 and 603 are opened and the last conduit 50 is in communication with the supply conduit 10. Under the gravity action of the height difference of L3-L1, the liquid flows into the liquid supply bag from the last medicine bag.
A drainage stage: the fourth robert clamp 604 and the fifth robert clamp 605 are opened, the negative pressure generator is started, and the pressure in the negative pressure cavity is set to be a preset value P1. Because the end of the first drainage branch pipe 201A is provided with the one-way valve, the negative pressure cavity can suck the liquid in the abdominal cavity through the drainage pipeline 20. And when P1 is greater than the corresponding liquid column pressure (L5-L2), peritoneal fluid will be drawn into the negative pressure cavity. When the liquid column pressure of P1 is less than or equal to L6, L6 is L5-L4, the liquid in the negative pressure cavity can be discharged into the waste liquid collecting device.
The second weighing unit is used for weighing the real-time weight of the waste liquid collecting device, when the second weighing unit monitors that the weight of the waste liquid barrel changes, the negative pressure pump stops working, and the pressure in the negative pressure cavity is P1, and the liquid column pressure corresponding to (L5-L2) is less than P1 and less than or equal to L6. Then, the negative pressure in the negative pressure cavity sucks the liquid in the abdominal cavity into the negative pressure cavity through the second drainage branch pipe 201B, and the liquid in the negative pressure cavity is influenced by gravity and flows into the waste liquid collecting device through the first drainage branch pipe 201A, so that continuous negative pressure is formed on the abdominal cavity.
During the whole drainage process, the system continuously monitors the pressure of the negative pressure cavity, and when the pressure is less than 15% of the set value P1, the negative pressure pump is started again to maintain the pressure of the negative pressure cavity.
In the whole drainage process, the weight change in unit time of the waste liquid collecting device is monitored by the second weighing unit, the real-time flow of the drainage pipeline is obtained, and then whether negative pressure is reapplied to the drainage pipeline or whether the applied negative pressure is adjusted is judged.
In addition, when the second weighing unit judges that the total amount of the liquid in the waste liquid collecting device is more than 80% of the drainage amount of the prescription and the flow rate is not high, the next treatment period is started.
The whole treatment process is repeatedly completed. Before the last drainage in the execution therapy is finished, a pressure release valve of the negative pressure pump is opened to release the pressure of the negative pressure cavity, and the liquid in the whole pipeline naturally flows into the waste liquid collecting device.
The consumable box has simple pipeline and structure, greatly reduces the cost, and makes the APD applied to the family treatment of patients possible. In addition, the simplified consumable box can further reduce the volume of the peritoneal dialysis equipment, and is convenient to carry.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model.
Claims (8)
1. A consumable cartridge for a peritoneal dialysis system, comprising:
a body end pipeline for connecting with the abdominal cavity of the human body;
the drainage pipeline is used for being connected with the waste liquid collecting device and is provided with a negative pressure cavity;
a liquid supply pipeline for connecting the liquid supply bag;
the body end pipeline, the drainage pipeline and the liquid supply pipeline are arranged side by side and connected through medical connecting pieces to form an intercommunicating pipeline.
2. The consumable cartridge for a peritoneal dialysis system of claim 1, further comprising a refill line for connecting with a refill pouch and a last line for connecting with a last fluid pouch;
the body end pipeline, the drainage pipeline, the liquid supply pipeline, the supplement pipeline and the last pipeline are arranged side by side and connected through medical connectors to form an intercommunicating pipeline.
3. The consumable cartridge of claim 2, wherein the end portions of the body end tube, the drainage tube, the fluid supply tube, the replenishment tube, and the last tube are provided with five-way tubes, the five-way tubes are provided with medical connectors, and the body end tube, the drainage tube, the fluid supply tube, the replenishment tube, and the last tube are connected by the medical connectors to form an intercommunicating tube.
4. A consumable cartridge for a peritoneal dialysis system according to any of claims 1-3, wherein the medical connector is a robert clamp, pinch valve, solenoid valve, or linear motor.
5. The consumable cartridge of claim 1, wherein the drain line comprises a first drain subduct, a second drain subduct and a negative pressure port, the first drain subduct communicating with one end of the negative pressure chamber, the second drain subduct and the negative pressure port communicating with the other end of the negative pressure chamber.
6. The consumable cartridge of claim 5, wherein the first drain branch conduit is provided with a one-way valve.
7. The consumable cartridge of claim 2, wherein the body end line, the fluid supply line, the replenishment line, and the last line are medical tubing.
8. The consumable cartridge of claim 2, wherein the body end, supply, replenishment, final, and drain lines have a tube diameter of 3-10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121200055.9U CN215995052U (en) | 2021-05-31 | 2021-05-31 | A consumptive material box for peritoneal dialysis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121200055.9U CN215995052U (en) | 2021-05-31 | 2021-05-31 | A consumptive material box for peritoneal dialysis system |
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| Publication Number | Publication Date |
|---|---|
| CN215995052U true CN215995052U (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121200055.9U Active CN215995052U (en) | 2021-05-31 | 2021-05-31 | A consumptive material box for peritoneal dialysis system |
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| CN (1) | CN215995052U (en) |
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2021
- 2021-05-31 CN CN202121200055.9U patent/CN215995052U/en active Active
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