Blood purification tube transfusion device with tube blocking prevention function

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to a blood purification tube transfusion device with a tube blocking prevention function, which comprises a transfusion tube, an annular tube and a drip cup, the transfusion tube is fixedly mounted in an inner cavity of the top end of the annular tube, the drip cup is arranged at the bottom of the annular tube, first flow stopping clamps are arranged on two sides of the top end of the annular tube, and the first flow stopping clamps are connected with the annular tube. Second flow stopping clamps are arranged on the two sides of the bottom end of the annular pipe, filter screens are fixedly installed in inner cavities in the two sides of the middle end of the annular pipe, an anti-blocking assembly capable of dredging the filter screens is connected to one side of the annular pipe, and a blood conveying pipe is fixedly installed in an inner cavity in the top end of the infusion pipe. The flow stopping clamps are arranged on the two sides of the top end and the two sides of the bottom end of the annular pipe, and the filter screens are arranged in the inner cavities on the two sides of the middle end of the annular pipe, so that when the filter screens are dredged, infusion operation can still be conducted on a patient, and then the infusion efficiency can be prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, and particularly provides a blood purification tube transfusion device with an anti-blocking function. Background Art

[0002] Hemodialysis is one of the renal replacement therapies for patients with acute and chronic renal failure. It involves draining the blood in the body to the outside, passing it through a dialyzer composed of countless hollow fibers. Inside and outside each hollow fiber, blood and an electrolyte solution (dialysate) with a concentration similar to that of the body undergo mass exchange through the principles of diffusion, ultrafiltration, adsorption, and convection to remove metabolic wastes in the body, maintain electrolyte and acid-base balance; at the same time, excess water in the body is removed, and the entire process of returning the purified blood is called hemodialysis.

[0003] Currently, after blood purification, an infusion tube is often used to input the purified blood and saline into the patient's body. Therefore, when used in the prior art, since the blood transfusion infusion tube includes a drip chamber, when blood flows into the drip chamber, a small amount of blood will remain in the drip chamber. At this time, blood components and tiny impurities in the blood are likely to accumulate at the bottom of the drip chamber, resulting in poor infusion and causing blockage of blood transfusion, posing a danger.

[0004] The existing patent CN219148811U discloses a blood purification tube transfusion device with an anti-blocking function. Although this patent can solve the above problems, it has the following disadvantages when in use:

[0005] 1. When flushing the impurities on the second filter screen, blood cannot be transported, which affects the transportation efficiency because the first filter screen is already in a blocked state during this process.

[0006] 2. After flushing the impurities on the second filter screen, the impurities still remain in the anti-blocking tube. Since the impurities have not decreased, it is easy for the second filter screen to become blocked again.

[0007] Therefore, it is necessary to invent a blood purification tube transfusion device with an anti-blocking function. Summary of the Invention

[0008] In view of the above and / or problems existing in the prior art of a blood purification tube transfusion device with an anti-blocking function, the present utility model is proposed.

[0009] Therefore, the purpose of the present utility model is to provide a blood purification tube transfusion device with an anti-blocking function, which can solve the above-mentioned existing problems.

[0010] To solve the above technical problems, according to one aspect of the present utility model, the following technical solutions are provided:

[0011] A blood purification tube transfusion device with an anti-blocking function, which includes an infusion tube, an annular tube and a drip chamber. The inner cavity at the top of the annular tube is fixedly installed with the infusion tube. A drip chamber is provided at the bottom of the annular tube. First stop clips are provided on both sides at the top of the annular tube. Second stop clips are provided on both sides at the bottom of the annular tube. Filter nets are fixedly installed in the inner cavities on both sides in the middle of the annular tube. An anti-blocking component capable of dredging the filter net is connected to one side of the annular tube.

[0012] As a preferred solution of the blood purification tube transfusion device with an anti-blocking function described in the present invention, wherein: A blood delivery tube is fixedly installed in the inner cavity at the top of the infusion tube, and a saline delivery tube is fixedly installed in the inner cavity at the top of the infusion tube.

[0013] As a preferred solution of the blood purification tube transfusion device with an anti-blocking function described in the present invention, wherein: A first liquid guide tube is fixedly installed in the inner cavity at the bottom of the drip chamber, and the bottom end of the first liquid guide tube is fixedly installed in the inner cavity at the top of the drip chamber.

[0014] As a preferred solution of the blood purification tube transfusion device with an anti-blocking function described in the present invention, wherein: A delivery tube is fixedly installed in the inner cavity at the bottom of the drip chamber, and a third stop clip is provided on the delivery tube.

[0015] As a preferred solution of the blood purification tube transfusion device with an anti-blocking function described in the present invention, wherein: The anti-blocking component includes an airbag with sterile gas in its inner cavity and a three-way joint. A second liquid guide tube is fixedly installed in the inner cavity at the bottom of the airbag, and a second liquid guide tube is fixedly installed in the inner cavity at the top of the three-way joint.

[0016] As a preferred solution of the blood purification tube transfusion device with an anti-blocking function described in the present invention, wherein: A group of third liquid guide tubes are fixedly installed in the inner cavities at the left end and the bottom of the three-way joint. Third liquid guide tubes are fixedly installed in the inner cavities on both sides at the bottom of the annular tube, and a fourth stop clip is provided on the third liquid guide tube.

[0017] As a preferred solution of the blood purification tube transfusion device with an anti-blocking function described in the present invention, wherein: Fourth liquid guide tubes are fixedly installed in the inner cavities on both sides at the top of the annular tube, and one-way valves are fixedly installed at the ends of the fourth liquid guide tubes.

[0018] As a preferred solution of the blood purification tube transfusion device with an anti-blocking function described in the present invention, wherein: The third liquid guide tube and the fourth liquid guide tube are located between the first stop clip and the second stop clip, and the filter net is located between the third liquid guide tube and the fourth liquid guide tube.

[0019] Compared with the prior art:

[0020] 1. By providing stop-flow clamps on both sides of the top and bottom ends of the annular tube, and providing filter nets in the inner cavities on both sides of the middle end of the annular tube, it is possible to perform infusion operations on patients while dredging the filter nets, thereby avoiding affecting the infusion efficiency.

[0021] 2. By connecting an anti-blocking component capable of dredging the filter net on one side of the annular tube, it is possible to discharge impurities during the dredging operation of the filter net, reduce the number of impurities in the annular tube, and thereby extend the time of the next blockage of the filter net to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view schematic diagram of the structure of the present utility model;

[0023] Figure 2 It is a cross-sectional view schematic diagram of the annular tube of the present utility model;

[0024] Figure 3 It is a schematic diagram of the airbag structure of the present utility model;

[0025] Figure 4 It is a schematic diagram of the three-way joint structure of the present utility model.

[0026] In the figure: infusion tube 10, blood delivery tube 11, saline delivery tube 12, annular tube 20, first stop-flow clamp 21, second stop-flow clamp 22, filter net 23, drip chamber 30, first liquid guide tube 31, delivery tube 32, third stop-flow clamp 33, airbag 40, second liquid guide tube 41, three-way joint 42, third liquid guide tube 43, fourth liquid guide tube 44, check valve 45. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To make the objectives, technical solutions and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

[0028] The present utility model provides a blood purification tube re-infusion device with an anti-blocking function. Please refer to Figures 1 - 4, including an infusion tube 10, a ring tube 20 and a drip chamber 30. The inner cavity at the top end of the ring tube 20 is fixedly installed with the infusion tube 10. The drip chamber 30 is provided at the bottom of the ring tube 20. First stop clips 21 are provided on both sides of the top end of the ring tube 20. Second stop clips 22 are provided on both sides of the bottom end of the ring tube 20. Filter meshes 23 are fixedly installed in the inner cavities on both sides of the middle end of the ring tube 20. An anti-blocking component capable of dredging the filter mesh 23 is connected to one side of the ring tube 20. Among them, the infusion tube 10 is integrally arranged on a blood circuit (not marked in the figure) connected to a dialysis machine, and the lengths of the blood circuit and the infusion tube 10 can be set according to requirements to avoid the structure becoming redundant. In addition, stop clips can also be set on the infusion tube 10 and the blood circuit according to requirements.

[0029] A blood delivery tube 11 is fixedly installed in the inner cavity at the top end of the infusion tube 10. The blood delivery tube 11 is connected to an external hemodialysis machine. A saline delivery tube 12 is fixedly installed in the inner cavity at the top end of the infusion tube 10. The saline delivery tube 12 is connected to an external saline bag (the saline bag is filled with physiological saline, hereinafter simply referred to as saline). Among them, the lengths of the infusion tube 10, the blood delivery tube 11 and the saline delivery tube 12 can be set according to requirements. In addition, a set of stop clips can be set on the saline delivery tube 12 according to requirements because the saline needs to be injected according to the patient's condition.

[0030] A first liquid guide tube 31 is fixedly installed in the inner cavity at the bottom end of the drip chamber 30, and the bottom end of the first liquid guide tube 31 is fixedly installed in the inner cavity at the top end of the drip chamber 30. A delivery tube 32 is fixedly installed in the inner cavity at the bottom end of the drip chamber 30, and a third stop clip 33 is provided on the delivery tube 32. Among them, the lengths of the first liquid guide tube 31 and the delivery tube 32 can be set according to requirements, and the end of the delivery tube 32 is connected to an external needle.

[0031] The anti-clogging component includes an airbag 40 with sterile gas in its inner cavity and a three-way joint 42. An air inlet port can be provided on the side wall of the airbag 40 according to requirements to facilitate filling sterile gas into the airbag 40. A second liquid guide tube 41 is fixedly installed in the inner cavity at the bottom end of the airbag 40, and the length of the second liquid guide tube 41 is set according to requirements. The second liquid guide tube 41 is fixedly installed in the inner cavity at the top end of the three-way joint 42. A group of third liquid guide tubes 43 are fixedly installed in the inner cavities at the left end and the bottom end of the three-way joint 42, and the length of the third liquid guide tube 43 is set according to requirements. The third liquid guide tubes 43 are fixedly installed in the inner cavities at both sides of the bottom end of the annular tube 20, and a fourth stop clamp is provided on the third liquid guide tube 43. Fourth liquid guide tubes 44 are fixedly installed in the inner cavities at both sides of the top end of the annular tube 20, and the length of the fourth liquid guide tube 44 is set according to requirements. A one-way valve 45 is fixedly installed at the end of the fourth liquid guide tube 44. By setting the one-way valve 45, it can prevent external air from flowing into the fourth liquid guide tube 44. The third liquid guide tube 43 and the fourth liquid guide tube 44 are located between the first stop clamp 21 and the second stop clamp 22, and the filter net 23 is located between the third liquid guide tube 43 and the fourth liquid guide tube 44.

[0032] Working principle: After the patient's blood is filtered by the hemodialysis machine, the blood and saline will be transported through the blood delivery tube 11 and the saline delivery tube 12 respectively. At this time, the blood and saline can flow into the annular tube 20 through the infusion tube 10. At this time, the first stop clamp 21, the second stop clamp 22, and the third stop clamp 33 are in the open state. Among them, the first stop clamp 21 and the second stop clamp 22 are the first stop clamp 21 and the second stop clamp 22 on the left side. Then, the blood will be filtered by the filter net 23 on the left side, and the filtered blood will flow into the patient's body through the first liquid guide tube 31, the drip chamber 30, the delivery tube 32, and the needle.

[0033] When the filter net 23 on the left side is about to be clogged (which can be judged according to the blood flow rate flowing into the drip chamber 30), close the first stop clamp 21 and the second stop clamp 22 on the left side, and open the first stop clamp 21 and the second stop clamp 22 on the right side, so that the blood flows into the patient's body through the right side of the annular tube 20 and the filter net 23 on the right side. After the blood on the left side of the annular tube 20 has flowed out almost, the corresponding fourth stop clamp can be opened, so that the gas in the airbag 40 flows into the left side of the annular tube 20 through the third liquid guide tube 43, so as to blow and dredge the filter net 23. During this process, the impurities will flow out through the fourth liquid guide tube 44 along with the gas.

[0034] Although the present utility model has been described above with reference to the embodiments, various improvements can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present utility model can be combined with each other in any way, and the exhaustive description of these combinations is not given in this specification only for the consideration of saving space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A blood purification tube reinfusion device with an anti-blocking tube function, comprising an infusion tube (10), a ring tube (20) and a drip pot (30), characterized in that: An infusion tube (10) is fixedly mounted in the inner cavity at the top end of the annular tube (20), a drip pot (30) is provided at the bottom of the annular tube (20), first flow-stopping clamps (21) are provided on both sides of the top end of the annular tube (20), and second flow-stopping clamps (22) are provided on both sides of the bottom end of the annular tube (20), a filter screen (23) is fixedly mounted in the inner cavity at both sides of the middle end of the annular tube (20), and an anti-blocking component capable of clearing the filter screen (23) is connected to one side of the annular tube (20).

2. A blood purification tube reinfusion device with anti-blocking function according to claim 1, characterized in that: A blood delivery tube (11) is fixedly mounted in the inner cavity at the top end of the infusion tube (10), and a saline delivery tube (12) is fixedly mounted in the inner cavity at the top end of the infusion tube (10).

3. A blood purification tube reinfusion device with anti-blocking function according to claim 1, characterized in that: The first liquid guiding tube (31) is fixedly mounted in the inner cavity at the bottom end of the dripping pot (30), and the bottom end of the first liquid guiding tube (31) is fixedly mounted in the inner cavity at the top end of the dripping pot (30).

4. A blood purification tube reinfusion device with anti-blocking function according to claim 3, characterized in that: A delivery pipe (32) is fixedly mounted in the inner cavity at the bottom end of the drip pot (30), and a third flow-stopping clamp (33) is provided on the delivery pipe (32).

5. A blood purification tube reinfusion device with anti-blocking function according to claim 1, characterized in that: The anti-clogging component comprises an air bag (40) whose inner cavity is filled with sterile gas and a three-way joint (42), wherein a second liquid guide tube (41) is fixedly installed in the inner cavity at the bottom end of the air bag (40), and the second liquid guide tube (41) is fixedly installed in the inner cavity at the top end of the three-way joint (42).

6. A blood purification tube reinfusion device with anti-blocking function according to claim 5, characterized in that: A set of third liquid guide tubes (43) are fixedly installed in the inner cavities at the left end and the bottom end of the three-way connector (42), and third liquid guide tubes (43) are fixedly installed in the inner cavities at both sides of the bottom end of the annular tube (20), and a fourth flow-stopping clamp is provided on the third liquid guide tubes (43).

7. A blood purification tube reinfusion device with anti-blocking function according to claim 6, characterized in that: Fourth liquid guide tubes (44) are fixedly installed in the inner cavities on both sides of the top end of the annular tube (20), and a one-way valve (45) is fixedly installed on the end of the fourth liquid guide tube (44).

8. A blood purification tube reinfusion device with anti-blocking function according to claim 7, characterized in that: The third liquid guiding tube (43) and the fourth liquid guiding tube (44) are located between the first flow-stopping clamp (21) and the second flow-stopping clamp (22), and the filter screen (23) is located between the third liquid guiding tube (43) and the fourth liquid guiding tube (44).

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