Anti-thrombus hemodialysis device

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to an anti-thrombus hemodialysis device. An anti-thrombus hemodialysis device comprises a supporting table, a dialysate supply device, a control screen, a dialyzer, a connecting pipe I, a connecting pipe II and a blood drawing pipe, the control screen is installed on the supporting table, the dialysate supply device is installed on the supporting table and connected with the dialyzer through the connecting pipe I and the connecting pipe II, and the blood drawing pipe is connected with the dialyzer through the connecting pipe I and the connecting pipe II. A symmetrical design is adopted to ensure fluid balance, and a top inlet of the dialyzer is connected and communicated with a blood drawing tube. The flow control pump is started and controlled through the control screen, anticoagulant is fed into the blood transfusion tube, blood coagulation is prevented, the flow of the flow control pump is adjusted and controlled by operating the control screen according to the condition of a patient, and thrombus caused by insufficient use of the anticoagulant can be avoided. And hemorrhage and palpitation caused by excessive use of the anticoagulant can also be prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and specifically relates to a blood dialysis device for preventing thrombosis. Background Art

[0002] Hemodialysis is a clinical renal replacement therapy used to treat patients with acute or chronic renal failure. When a patient's kidneys cannot effectively perform their natural functions, such as removing metabolic wastes from the body, maintaining electrolyte balance, and controlling body fluid, hemodialysis becomes a necessary life support measure.

[0003] Preventing thrombosis during hemodialysis is an important concern. Thrombosis not only affects the effectiveness of dialysis but also poses serious health risks to patients. During hemodialysis, the dosage of anticoagulant is a very crucial parameter, which directly affects the safety and effectiveness of dialysis. The role of anticoagulant is to prevent blood from coagulating during circulation. If the anticoagulation is insufficient, thrombosis may occur, blocking the dialyzer and tubing, thus interrupting the dialysis process. While excessive anticoagulation may cause the risk of bleeding in patients.

[0004] Therefore, there is a need to provide a blood dialysis device that can control the dosage of anticoagulant. Summary of the Utility Model

[0005] In order to overcome the drawback that during hemodialysis, if the dosage of anticoagulant is not controlled properly, insufficient anticoagulation may lead to thrombosis, while excessive anticoagulation may cause the risk of bleeding in patients, the technical problem to be solved is: to provide a blood dialysis device that can control the dosage of anticoagulant.

[0006] The technical solution of the utility model is: a blood dialysis device for preventing thrombosis, which includes a support platform, a dialysate supplier, a control panel, a dialyzer, connecting pipe Ⅰ, connecting pipe Ⅱ, a blood extraction tube, a blood pump, a blood extraction needle, a blood transfusion tube, and a blood transfusion needle. A control panel is installed on the support platform, and a dialysate supplier is installed on the support platform. The dialysate supplier is connected to the dialyzer through connecting pipe Ⅰ and connecting pipe Ⅱ, and a symmetrical design is adopted to ensure fluid balance. The top inlet of the dialyzer is connected and communicated with a blood extraction tube, and a blood pump is connected to the blood extraction tube. Both ends of the blood pump are connected and communicated with the blood extraction tube and the blood extraction needle respectively. The bottom outlet of the dialyzer is connected and communicated with a blood transfusion tube, and the blood transfusion tube is connected and communicated with a blood transfusion needle. It also includes a liquid storage tank, a delivery pipe, and a flow control pump. A liquid storage tank is installed on the support platform, and the bottom of the liquid storage tank is connected and communicated with the bottom of the dialyzer through a delivery pipe, and a flow control pump is arranged on the delivery pipe.

[0007] As a preferred technical solution of the present utility model, it further includes a fixing ring, a baffle, a slider and a protective pad. A slider is slidably arranged on both the blood collection tube and the blood transfusion tube. A fixing ring is fixedly connected to the slider. A protective pad is fixedly connected inside the fixing ring, and a baffle is embedded in the fixing ring.

[0008] As a preferred technical solution of the present utility model, it further includes a connecting plate, a flow rate detector, a controller and a display module. A connecting plate is fixedly connected to the fixing ring. Two flow rate detectors are installed inside the connecting plate, and the two flow rate detectors respectively detect the liquid flow rates in the blood collection tube and the blood transfusion tube. A controller is installed between the two flow rate detectors. The flow rate detectors are signal-connected to the controller. A display module is installed on the connecting plate. The flow rate detectors and the display module are signal-connected to the controller.

[0009] As a preferred technical solution of the present utility model, corner pads are fixedly connected to the bottom corners of the support table.

[0010] As a preferred technical solution of the present utility model, an observation plate is embedded in the liquid storage tank.

[0011] As a preferred technical solution of the present utility model, a connecting ring is fixedly connected to the baffle.

[0012] Beneficial effects: 1. By operating the control panel to start the flow control pump, the anticoagulant is sent into the blood transfusion tube to prevent blood coagulation. According to the patient's condition, the flow rate of the flow control pump is adjusted by operating the control panel to control the dosage of the anticoagulant, which can avoid thrombus caused by insufficient use of the anticoagulant and prevent bleeding and discomfort caused by excessive use of the anticoagulant.

[0013] 2. By the medical staff sliding the slider, the slider drives the fixing ring to slide. The fixing ring is slid to directly above the needle. The protective pad inside the fixing ring can relieve the soreness of the patient's arm. If it is necessary to check the connection between the needle and the vein, it can be viewed by sliding the baffle.

[0014] 3. By the flow rate detector continuously monitoring the blood flow rates in the blood collection tube and the blood transfusion tube, when the detected blood flow rate exceeds or is lower than the safe preset value, the flow rate detector will send a signal. After the controller receives the signal, it will update the flow rate value in real time on the display screen. Once the flow rate abnormality is found, the blood pump speed or other relevant parameters are adjusted through the control panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0016] Figure 2 It is a three-dimensional cross-sectional view of the liquid storage tank, the delivery tube and the flow control pump of the present utility model.

[0017] Figure 3This is a three-dimensional cross-sectional view of the blood extraction pump, blood extraction needle, and blood transfusion tube of the present utility model.

[0018] Figure 4 This is a three-dimensional cross-sectional view of the fixing ring, baffle, and slider of the present utility model.

[0019] Figure 5 This is a three-dimensional structural schematic diagram of the connecting plate, flow rate detector, and controller of the present utility model.

[0020] Wherein: 1 - support platform, 2 - dialysate supply device, 3 - control panel, 4 - dialyzer, 5 - connecting pipe I, 6 - connecting pipe II, 7 - blood extraction tube, 8 - blood pump, 9 - blood extraction needle, 10 - blood transfusion tube, 11 - blood transfusion needle, 12 - liquid storage tank, 13 - delivery pipe, 14 - flow control pump, 15 - fixing ring, 16 - baffle, 17 - slider, 18 - protective pad, 19 - connecting plate, 20 - flow rate detector, 21 - controller, 22 - display module, 23 - corner guard pad, 24 - observation plate, 25 - connecting ring. Specific Embodiments

[0021] The present utility model will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0022] Embodiment 1: An anti-thrombosis hemodialysis device, as Figures 1 - 3 shown, includes a support platform 1, a dialysate supply device 2, a control panel 3, a dialyzer 4, a connecting pipe I 5, a connecting pipe II 6, a blood extraction tube 7, a blood pump 8, a blood extraction needle 9, a blood transfusion tube 10, and a blood transfusion needle 11. The control panel 3 is installed on the support platform 1 by means of bolt connection. The dialysate supply device 2 is installed on the support platform 1 by means of bolt connection. The dialysate supply device 2 is connected to the dialyzer 4 through the connecting pipe I 5 and the connecting pipe II 6. A symmetric design is adopted to ensure fluid balance. The top inlet of the dialyzer 4 is connected and communicated with a blood extraction tube 7. A blood pump 8 is connected to the blood extraction tube 7. Both ends of the blood pump 8 are connected and communicated with the blood extraction tube 7 and the blood extraction needle 9 respectively. The bottom outlet of the dialyzer 4 is connected and communicated with a blood transfusion tube 10. The blood transfusion tube 10 is connected and communicated with a blood transfusion needle 11. It further includes a liquid storage tank 12, a delivery pipe 13, and a flow control pump 14. The liquid storage tank 12 is installed on the support platform 1 by means of bolt connection. The bottom of the liquid storage tank 12 is connected and communicated with the bottom of the dialyzer 4 through a delivery pipe 13. A flow control pump 14 is provided on the delivery pipe 13.

[0023] When using this device to perform hemodialysis on a patient, medical staff first insert the blood extraction needle 9 into a vein of the patient, and then insert the blood transfusion needle 11 into another vein of the patient. By starting the blood pump 8, the blood pump 8 extracts the patient's blood from the vein through the blood extraction needle 9. The blood flows along the blood extraction tube 7 into the dialyzer 4. Inside the dialyzer 4, during the contact between the blood and the dialysate, it helps to remove metabolic wastes and excess water in the blood. The blood purified by the dialyzer 4 is re-transfused back into the patient's body through the blood transfusion tube 10 and the blood transfusion needle 11. During hemodialysis, preventing blood clot formation is crucial. The use of anticoagulants can maintain the fluidity of the blood, thus avoiding the formation of blood clots. By storing the anticoagulant in the liquid storage tank 12, and then starting the control of the flow control pump 14 through the control panel 3, the anticoagulant is sent into the blood transfusion tube 10 from the delivery tube 13, thereby preventing the blood from coagulating during extracorporeal circulation. Medical staff adjust the flow rate of the flow control pump 14 through the operation of the control panel 3 according to the patient's condition, so as to control the amount of anticoagulant delivered. This can avoid blood clots caused by insufficient use of anticoagulants and also prevent bleeding and discomfort caused by excessive use of anticoagulants.

[0024] Embodiment 2: On the basis of Embodiment 1, as Figure 3 and Figure 4 shown, it further includes a fixing ring 15, a baffle 16, a slider 17 and a protective pad 18. The slider 17 is slidably arranged on both the blood extraction tube 7 and the blood transfusion tube 10. The fixing ring 15 is welded on the slider 17. The protective pad 18 is arranged in the fixing ring 15 by bonding, and the baffle 16 is embedded in the fixing ring 15.

[0025] When the patient is undergoing hemodialysis, in order to relieve the soreness caused by the patient's arm maintaining the same posture for a long time and prevent the blood from accidentally contaminating the clothes or the hospital bed, the medical staff slide the slider 17. The slider 17 slides and drives the fixing ring 15 to slide together, and slides the fixing ring 15 directly above the needle. The inner side of the fixing ring 15 is equipped with a soft protective pad 18, which can relieve the soreness of the patient's arm. If the medical staff needs to check the connection between the needle and the vein, they only need to slide the baffle 16 to view.

[0026] As Figure 4 and Figure 5As shown in the figure, it further includes a connecting plate 19, a flow rate detector 20, a controller 21 and a display module 22. The connecting plate 19 is welded on the fixed ring 15. Two flow rate detectors 20 are installed in the connecting plate 19 by means of bolt connection, and the two flow rate detectors 20 respectively detect the liquid flow rates in the blood extraction tube 7 and the blood transfusion tube 10. A controller 21 is installed between the two flow rate detectors 20 by means of bolt connection. The flow rate detector is signal-connected to the controller 21. A display module 22 is installed on the connecting plate 19 by means of bolt connection. The flow rate detector and the display module 22 are signal-connected to the controller 21.

[0027] During hemodialysis, the flow rate detector 20 continuously monitors the blood flow rates in the blood extraction tube 7 and the blood transfusion tube 10. Once it detects that the blood flow rate exceeds or is lower than the safe preset value, the flow rate detector 20 will send a signal. After receiving the signal from the flow rate detector 20, the controller 21 will update the flow rate value in real time on the display screen, intuitively showing whether the current flow rate deviates from the preset safe range. Once abnormal flow rate is found, medical staff can adjust the speed of the blood pump 8 or other relevant parameters in time through the control panel 3 to restore the normal blood flow rate and ensure the safety and effectiveness of the dialysis process.

[0028] As Figure 1 , Figure 2 and Figure 4 shown in the figure, corner pads 23 are adhesively bonded to the bottom corners of the support table 1. An observation plate 24 is embedded in the liquid storage tank 12. A connecting ring 25 is welded on the baffle 16.

[0029] By installing the corner pads 23 at the bottom corners of the support table 1, the damage caused by accidental bumps can be significantly reduced. In addition, by setting the transparent observation plate 24, medical staff can clearly check the remaining amount of anticoagulant in the liquid storage tank 12 at any time, which is convenient for subsequent timely replenishment. And by setting the connecting ring 25 on the baffle 16, it is more convenient for medical staff to pull and close the baffle 16.

[0030] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A blood thrombosis prevention hemodialysis device, comprising a support platform (1), a dialysate supplier (2), a control panel (3), a dialyzer (4), a connecting tube I (5), a connecting tube II (6), a blood drawing blood tube (7), a blood pump (8), a blood drawing needle (9), a blood transfusion blood tube (10) and a blood transfusion needle (11), wherein the control panel (3) is mounted on the support platform (1), the dialysate supplier (2) is mounted on the support platform (1), the dialysate supplier (2) is connected to the dialyzer (4) through the connecting tube I (5) and the connecting tube II (6), the top inlet of the dialyzer (4) is connected and communicated with a blood drawing blood tube (7), the blood drawing blood tube (7) is connected with a blood pump (8), the two ends of the blood pump (8) are respectively connected and communicated with the blood drawing blood tube (7) and the blood drawing needle (9), the bottom outlet of the dialyzer (4) is connected and communicated with a blood transfusion blood tube (10), the blood transfusion blood tube (10) is connected and communicated with the blood transfusion needle (11), characterized in that: It also includes a liquid storage tank (12), a delivery pipe (13), and a flow control pump (14). The liquid storage tank (12) is installed on the support platform (1), the bottom of the liquid storage tank (12) is connected to the bottom of the dialyzer (4) and is connected to the delivery pipe (13), and the flow control pump (14) is arranged on the delivery pipe (13).

2. The anti-thrombotic hemodialysis device according to claim 1, characterized in that: The device also comprises a fixing ring (15), a baffle (16), a sliding block (17) and a protective pad (18); the blood draw tube (7) and the blood transfusion tube (10) are provided with a sliding block (17) in a slidable manner; the fixing ring (15) is fixedly connected to the sliding block (17); the protective pad (18) is fixedly connected inside the fixing ring (15); and the baffle (16) is embedded in the fixing ring (15).

3. The anti-thrombotic hemodialysis device according to claim 2, characterized in that: The device also comprises a connecting plate (19), a flow rate detector (20), a controller (21) and a display module (22). The connecting plate (19) is fixedly connected to the fixing ring (15). Two flow rate detectors (20) are installed in the connecting plate (19). The two flow rate detectors (20) detect the flow rate of the liquid in the blood draw tube (7) and the blood transfusion tube (10) respectively. The controller (21) is installed between the two flow rate detectors (20). The flow rate detector is connected to the controller (21) by signal. The display module (22) is installed on the connecting plate (19). The flow rate detector and the display module (22) are connected to the controller (21) by signal.

4. The anti-thrombotic hemodialysis device according to claim 1, characterized in that: Corner pads (23) are fixedly connected to the bottom corners of the support platform (1).

5. The anti-thrombotic hemodialysis device according to claim 1, characterized in that: An observation panel (24) is embedded in the liquid storage tank (12).

6. The anti-thrombotic hemodialysis device according to claim 2, characterized in that: A connecting ring (25) is fixedly connected to the baffle (16).

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