Improved blood purification and blood return device

Abstract

The utility model discloses an improved blood purification blood return device, including improved blood transfusion device and intravenous jug, and the first input is equipped with first input, second input and third input on the intravenous jug upper end, and the output interface is equipped with the output interface of intravenous jug lower extreme, and the output interface connects the blood transfusion tube, and the first input is connected blood dialysis instrument's blood dialysis machine through the pipeline, and the second input is connected pressure sensor through the pipeline, and the pipeline connected with the third input is three -way pipeline, and one end of three -way pipeline is connected with the third input, and the other two ends are used for connecting syringe and improved blood transfusion device respectively. The advantage lies in, when the intravenous jug occurs blood clot deposition, causes the purified blood to be unable to return to the body, can adopt the improved blood transfusion device, and the purified blood is drained to the improved blood transfusion device, and the blood is returned to the body by the improved blood transfusion device, avoids the occurrence a large amount of blood to be kept in the extracorporeal circulation system, and causes the patient anemia.

Description

Technical Field

[0001] This utility model belongs to the field of medical devices, specifically relating to an improved blood purification and blood return device. Background Technology

[0002] During blood purification, some patients cannot resist coagulation or resist coagulation is insufficient due to their condition. Blood clots may accumulate in the venous chamber of the dialysis equipment, preventing blood from returning. This can cause more than 100 milliliters of blood circulating outside the body to not return to the patient's body. Generally, this blood circulating outside the body is directly discarded, which can lead to anemia in the patient. Utility Model Content

[0003] To address the problems and shortcomings of existing technologies, the purpose of this utility model is to provide an improved blood purification and return device, offering an alternative solution for patients who cannot or cannot anticoagulate during the blood purification process, effectively preventing anemia caused by blood clots during blood purification.

[0004] An improved blood purification and blood return device includes a modified blood transfusion set and a vein reservoir. The upper end of the vein reservoir is provided with a first inlet, a second inlet, and a third inlet. The lower end of the vein reservoir is provided with an output interface, which is connected to the transfusion tube. The first inlet is connected to the hemodialyzer of the hemodialysis machine through a tubing. The second inlet is connected to a pressure sensor through a tubing. The tubing connected to the third inlet is a T-connector, with one end of the T-connector connected to the third inlet and the other two ends used to connect to a syringe and the modified blood transfusion set, respectively.

[0005] Furthermore, the modified blood transfusion set includes a cavity, an inlet tube, and an outlet tube. One end of the inlet tube is equipped with a syringe nipple structure, which is connected to a three-way tube, and the other end is connected to the upper end of the cavity. One end of the outlet tube is equipped with a blood transfusion needle, and the other end is connected to the lower end of the cavity.

[0006] Furthermore, the cavity is equipped with a filter for filtering blood clots.

[0007] Furthermore, a flow rate regulator is installed on the output pipe.

[0008] Furthermore, the three-way tube is equipped with two water-stop clamps, which are respectively installed on the tubes connecting the syringe and the modified blood transfusion set.

[0009] The advantages of this utility model are: 1. When blood clots accumulate in the venous urn, preventing purified blood from flowing back into the body, a modified transfusion set can be used to drain the purified blood into the modified transfusion set, which then returns the blood to the body. This avoids a large amount of blood remaining in the extracorporeal circulation system, which could lead to anemia in the patient.

[0010] 2. The modified transfusion set used can be easily modified from a traditional transfusion set, making this improved blood purification and return device easier to implement based on existing medical devices.

[0011] 3. This improved blood purification and return device retains the original syringe interface for adjusting the fluid level in the venous reservoir, and also provides a solution for blood clots in the venous reservoir, achieving two goals at once. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of blood circulation during the traditional blood purification process.

[0013] Figure 2 This is a schematic diagram of blood circulation during the blood purification process of this utility model.

[0014] Figure 3 This is a schematic diagram showing the state of the vein pot during normal use.

[0015] Figure 4 This is a schematic diagram of the state when blood clots deposit in the venous urn.

[0016] Figure 5 This is a schematic diagram of the connection of the modified blood transfusion set in this utility model.

[0017] Figure 6 This is a schematic diagram of the connection of the tee pipe in this utility model.

[0018] Attached reference numerals: 1. Modified transfusion set; 2. Three-way tubing; 3. Infusion vessel; 4. Syringe nipple; 5. Cavity; 6. Filter screen; 7. Flow regulator; 8. Stop clamp; 9. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] An improved blood purification and return device includes a modified transfusion set and a venous reservoir. The venous reservoir has a first inlet, a second inlet, and a third inlet at its upper end, and an outlet at its lower end, connected to a transfusion tube. The first inlet is connected to the hemodialyzer of a hemodialysis machine via tubing. The second inlet is connected to a pressure sensor via tubing. The third inlet is connected to a three-way connector, with one end connected to the third inlet and the other two ends connected to a syringe and the modified transfusion set, respectively. The modified transfusion set includes a cavity, an inlet tube, and an outlet tube. One end of the inlet tube has a syringe nipple structure connected to the three-way connector, and the other end is connected to the upper end of the cavity. One end of the outlet tube has a transfusion needle, and the other end is connected to the lower end of the cavity. The cavity contains a filter for filtering blood clots. The outlet tube has a flow rate regulator. Two stop clamps are installed on the three-way connector, one on each of the tubing connecting the syringe and the modified transfusion set.

[0021] The actual usage method and process are as follows: First, if blood clots are found in the venous reservoir during blood purification, causing the extracorporeal circulation to stop, the stopcock in the three-way valve used to connect the modified transfusion set needs to be opened. The modified transfusion set can be connected to the three-way valve in advance or at the time of use. Once the modified transfusion set is connected to the three-way valve, since the purified blood cannot flow back from the venous reservoir to the transfusion tube, blood circulation will proceed through the modified transfusion tube.

[0022] The modified blood transfusion set has an internal filter, which is mainly used to filter blood clots and thrombi.

[0023] Through the above procedures, when performing blood purification on patients who cannot or cannot anticoagulate, only a few milliliters of blood will remain in the venous chamber at the end of extracorporeal circulation. This contrasts with traditional blood purification methods, where all blood in the extracorporeal circulation cannot return, preventing the return of hundreds of milliliters of blood and avoiding anemia in the patient.

[0024] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An improved blood purification and blood return device, characterized in that: It includes a modified blood transfusion set and a vein vessel. The upper end of the vein vessel is equipped with a first inlet, a second inlet, and a third inlet. The lower end of the vein vessel is equipped with an output interface, which is connected to the transfusion tube. The first inlet is connected to the hemodialyzer of the hemodialysis machine through a tubing. The second inlet is connected to a pressure sensor through a tubing. The tubing connected to the third inlet is a three-way tubing. One end of the three-way tubing is connected to the third inlet, and the other two ends are used to connect to the syringe and the modified blood transfusion set, respectively.

2. The improved blood purification and return device according to claim 1, characterized in that: The modified blood transfusion set includes a cavity, an inlet tube, and an outlet tube. One end of the inlet tube is equipped with a syringe nipple structure, which is connected to a three-way tube, and the other end is connected to the upper end of the cavity. One end of the outlet tube is equipped with a blood transfusion needle, and the other end is connected to the lower end of the cavity.

3. The improved blood purification and return device according to claim 2, characterized in that: The cavity is equipped with a filter for filtering blood clots.

4. The improved blood purification and return device according to claim 3, characterized in that: A flow rate regulator is installed on the output pipe.

5. An improved blood purification and blood return device according to claim 4, characterized in that: The three-way tube is equipped with two water-stop clamps, which are respectively installed on the tubes connecting the syringe and the modified blood transfusion set.

Images