Extracorporeal circulation blood path for hemodialysis and blood perfusion

Abstract

The utility model discloses an extracorporeal circulation blood path for hemodialysis and blood perfusion, which belongs to the technical field of medical instruments and comprises an arterial blood path and a venous blood path, and the arterial blood path comprises an aorta tube, a pump tube, an arterial pot inlet tube, an arterial pot outlet tube and an arterial pressure monitoring tube which are arranged along the flowing direction of arterial blood; the venous blood path comprises a venous pot inlet pipe, a venous pot outlet pipe, a hemodialyzer pipe and a venous pressure monitor which are arranged in the flowing direction of venous blood. The hemoperfusion device blood path comprises an artery connecting pipe, a vein connecting pipe, a waste liquid drainage pipe, an arteriovenous circulation pipe and a waste liquid bag connecting pipe. By means of the mode, connection needed by blood perfusion and connection needed by other blood purification modes (such as hemodialysis) are integrated together, medical staff do not need to splice various complex independent pipelines during operation, the operation process is simplified, and the hemodialysis efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a blood dialysis joint blood perfusion's extracorporeal circulation blood road. BACKGROUND

[0002] Blood dialysis pipeline refers to the pipeline system for blood dialysis treatment, mainly including artery, vein and dialysate pipeline parts, and the function is to connect patients and dialysis machines, so that blood can circulate and flow, and complete dialysis treatment.

[0003] Chinese patent CN217162736U discloses a kind of extracorporeal circulation blood road of blood purification device, and the device includes arterial pipeline and venous pipeline, the arterial pipeline includes arterial pipeline starting end head, arterial injection three-way, arterial pressure sensor protector, pump pipe, heparin tube and arterial dialysis connector sequentially arranged on the main artery pipe along the liquid flow direction, arterial pressure sensor protector and heparin tube are connected at the head and tail of pump pipe respectively;The venous pipeline includes venous dialysis connector, venous injection three-way, venous jug and venous pipeline termination end head sequentially arranged on the main venous pipe along the liquid flow direction, and venous jug is further provided with venous pressure sensor protector, venous first branch pipe and venous second branch pipe;Flow stop clamp is arranged on each pipe.But, the device still has the following problems:

[0004] Patients need two kinds of equipment dialysis when dialysis, blood perfusion device and hemodialyzer respectively, but the pipeline required by blood perfusion device and hemodialyzer is separated, packaged in different packaging bags, so that medical staff needs to take two kinds when taking pipeline, and then needs to be assembled together, the process is relatively complex.

[0005] Therefore, the utility model designs a kind of extracorporeal circulation blood road of blood dialysis joint blood perfusion to solve above-mentioned problems. UTILITY MODEL CONTENTS

[0006] In view of the above-mentioned shortcomings of prior art, the utility model provides a kind of extracorporeal circulation blood road of blood dialysis joint blood perfusion.

[0007] To achieve the above object, the utility model is realized by the following technical scheme:

[0008] A kind of extracorporeal circulation blood road of blood dialysis joint blood perfusion, including arterial blood road and venous blood road,

[0009] The arterial blood road includes main aorta pipe, pump pipe, arterial jug inlet pipe, arterial jug outlet pipe and arterial pressure monitoring pipe arranged along the arterial blood flow direction;And main aorta pipe, pump pipe, arterial jug inlet pipe and arterial jug outlet pipe are connected together in parallel;Wherein arterial jug inlet pipe, arterial jug outlet pipe and arterial pressure monitoring pipe communicate with arterial jug;

[0010] The venous blood circuit comprises a venous jug inlet pipe, a venous jug outlet pipe, a hemodialyzer pipe and a venous pressure monitoring pipe arranged along the direction of venous blood flow; the venous jug inlet pipe, the venous jug outlet pipe and the venous pressure monitoring pipe are in communication with the venous jug; the venous jug outlet pipe and the hemodialyzer pipe are in communication with the hemodialyzer;

[0011] The blood perfusion device blood circuit comprises an arterial connecting pipe, a venous connecting pipe, a waste liquid discharge pipe, an arterial-venous flow pipe and a waste liquid bag connecting pipe; the arterial jug outlet pipe is in communication with the arterial connecting pipe, and the arterial connecting pipe is connected with the lower end of the blood perfusion device; the waste liquid discharge pipe is connected with the upper end of the blood perfusion device; the waste liquid discharge pipe is connected with the lower end of the three-way pipe; the venous connecting pipe is in communication with the hemodialyzer pipe; the left end of the venous connecting pipe is connected with the right end of the three-way pipe; the lower end of the waste liquid bag connecting pipe is connected with the upper end of the three-way pipe, and the upper end of the waste liquid bag connecting pipe is connected with the waste liquid bag through a fastening clamping mechanism; the hemodialyzer pipe and the arterial jug outlet pipe are provided with the arterial-venous flow pipe therebetween, and the arterial-venous flow pipe is in communication with the hemodialyzer pipe and the arterial jug outlet pipe;

[0012] Further, a pipe clamp is arranged between the arterial pressure monitoring pipe and the arterial jug, and a pipe clamp is arranged between the venous pressure monitoring pipe and the venous jug;

[0013] Further, a pipe clamp is arranged between the arterial jug outlet pipe and the blood perfusion device blood circuit, and a pipe clamp is arranged between the hemodialyzer pipe and the blood perfusion device blood circuit;

[0014] Further, a pipe clamp is arranged between the arterial jug outlet pipe and the arterial connecting pipe, a pipe clamp is arranged between the waste liquid discharge pipe and the three-way pipe, and a pipe clamp is arranged between the waste liquid bag connecting pipe and the three-way pipe;

[0015] Further, a pipe clamp is arranged between the hemodialyzer pipe and the venous connecting pipe, and a pipe clamp is arranged on the arterial-venous flow pipe;

[0016] Further, the pipe clamp is a spring water stop clamp;

[0017] Further, all the pipes in the extracorporeal blood circuit are medical standard flexible pipes;

[0018] Further, the fastening clamping mechanism comprises an outer threaded pipe, a pressing inclined surface, an inner threaded pipe and a pressing ring; the outer threaded pipe is fixedly installed at the upper end of the waste liquid bag connecting pipe, and the inner threaded pipe is fixedly installed at the lower end of the waste liquid bag; the inner threaded pipe is internally fixedly installed with the pressing ring; and the inner threaded pipe is threadedly connected with the outer threaded pipe;

[0019] Further, the pressing ring is made of rubber;

[0020] Further, the arterial pot and the venous pot are made of PVC material containing ATBC non-orthophenyl plasticizer;

[0021] Compared with the prior art, the blood perfusion device and the hemodialysis device required by the plurality of pipeline clamps are combined, and the connection required by blood perfusion and other blood purification modes (such as hemodialysis) is integrated. This makes medical staff not need to use a plurality of complex separate pipelines for splicing when operating, simplifies the operation process, and improves the efficiency of hemodialysis; the waste liquid bag and the waste liquid bag connecting pipe are tightly connected through the fastening clamping mechanism, environmental pollution caused by waste liquid leakage is avoided, and the practicability of the blood circuit is further improved; a plurality of connection interfaces and some open operation steps are reduced through the integrated connecting pipe, closed pre-charging, closed blood return, etc. can be achieved. Blood leakage can be effectively prevented, and the invasion of external bacteria and other pathogens is minimized. Compared with the traditional connection mode, the connection is more tightly, and the infection risk caused by poor sealing at the interface is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0023] Figure 1 It is a schematic diagram of an extracorporeal circulation blood circuit for hemodialysis combined with blood perfusion of the present application;

[0024] Figure 2 It is Figure 1 An enlarged view of A in the middle;

[0025] Figure 3 It is a front view of the fastening clamping mechanism;

[0026] Figure 4 It is a perspective view of the fastening clamping mechanism with part cut away;

[0027] Figure 5 It is Figure 4 An enlarged view of B in the middle;

[0028] Figure 6 It is a partial schematic diagram of the arterial blood circuit and the venous blood circuit.

[0029] The reference numbers in the figure respectively represent:

[0030] 1, arterial blood circuit; 11, aortic tube; 12, pump tube; 13, arterial pot inlet tube; 14, arterial pot outlet tube; 15, arterial pressure monitoring tube; 2, blood perfusion device blood circuit; 21, arterial connecting tube; 22, venous connecting tube; 23, waste liquid discharge tube; 24, arterial-venous flow tube; 25, waste liquid bag connecting tube; 3, venous blood circuit; 31, venous pot inlet tube; 32, venous pot outlet tube; 33, hemodialyzer tube; 34, venous pressure monitoring tube; 4, tube clamp; 5, blood perfusion device; 6, hemodialyzer; 7, arterial pot; 8, venous pot; 9, waste liquid bag; 10, three-way tube; 111, fastening clamping mechanism; 1111, external threaded tube; 1112, pressing inclined surface; 1113, internal threaded tube; 1114, abutting ring. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will be a clear and complete description of the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0032] In the following description, “left”, “right”, “front”, “back”, “up”, and “down” are oriented in the perspective of the front view.

[0033] Embodiment one: in some embodiments, referring to the drawings in the specification Figures 1-3 A hemodialysis combined with blood perfusion extracorporeal circulation blood circuit, comprising an arterial blood circuit 1 and a venous blood circuit 3,

[0034] The arterial blood circuit 1 comprises an aortic tube 11, a pump tube 12, an arterial pot inlet tube 13, an arterial pot outlet tube 14, and an arterial pressure monitoring tube 15 arranged along the arterial blood flow direction; and the aortic tube 11, the pump tube 12, the arterial pot inlet tube 13, and the arterial pot outlet tube 14 are connected together in parallel; wherein the arterial pot inlet tube 13, the arterial pot outlet tube 14, and the arterial pressure monitoring tube 15 are in communication with the arterial pot 7;

[0035] The venous blood circuit 3 comprises a venous pot inlet tube 31, a venous pot outlet tube 32, a hemodialyzer tube 33, and a venous pressure monitoring tube 34 arranged along the venous blood flow direction; the venous pot inlet tube 31, the venous pot outlet tube 32, and the venous pressure monitoring tube 34 are in communication with the venous pot 8; the venous pot outlet tube 32 and the hemodialyzer tube 33 are in communication with the hemodialyzer 6;

[0036] The blood perfusion device blood path 2 includes an arterial connecting tube 21, a venous connecting tube 22, a waste liquid discharge tube 23, an arterial-venous flow tube 24 and a waste liquid bag connecting tube 25, the arterial pot outlet tube 14 communicates with the arterial connecting tube 21, the arterial connecting tube 21 is connected with the lower end of the blood perfusion device 5; the waste liquid discharge tube 23 is connected with the upper end of the blood perfusion device 5; the waste liquid discharge tube 23 is connected with the lower end of the three-way tube 10; the venous connecting tube 22 communicates with the hemodialyzer tube 33; the left end of the venous connecting tube 22 is connected with the right end of the three-way tube 10; the lower end of the waste liquid bag connecting tube 25 is connected with the upper end of the three-way tube 10, the upper end of the waste liquid bag connecting tube 25 is connected with the waste liquid bag 9 through a fastening clamping mechanism 111; the arterial-venous flow tube 24 is arranged between the hemodialyzer tube 33 and the arterial pot outlet tube 14, the arterial-venous flow tube 24 communicates with the hemodialyzer tube 33 and the arterial pot outlet tube 14;

[0037] The arterial pressure monitoring tube 15 is arranged between the arterial pot 7 and the pipe clamp 4, the venous pressure monitoring tube 34 is arranged between the venous pot 8 and the pipe clamp 4; the arterial pot outlet tube 14 is arranged between the blood perfusion device blood path 2 and the pipe clamp 4, the hemodialyzer tube 33 is arranged between the blood perfusion device blood path 2 and the pipe clamp 4; the arterial pot outlet tube 14 is arranged between the arterial connecting tube 21 and the pipe clamp 4; the waste liquid discharge tube 23 is arranged between the three-way tube 10 and the pipe clamp 4; the waste liquid bag connecting tube 25 is arranged between the three-way tube 10 and the pipe clamp 4; the hemodialyzer tube 33 is arranged between the venous connecting tube 22 and the pipe clamp 4; the arterial-venous flow tube 24 is provided with the pipe clamp 4;

[0038] The pipe clamp 4 adopts a spring water stop clamp; for controlling the flow of blood or medicinal liquid in the pipe;

[0039] The arterial pot 7 and the venous pot 8 both adopt PVC materials containing ATBC non-orthophenyl plasticizers;

[0040] All the pipes in the extracorporeal circulation blood path adopt medical standard hoses;

[0041] The utility model discloses a blood perfusion device, which comprises a blood perfusion device 5, an arterial end, a venous end, an arterial pot import pipe 13, an arterial pot export pipe 14, a waste liquid discharge pipe 23, a waste liquid bag connecting pipe 25, a three-way pipe 10, a venous pot import pipe 31, a venous pot export pipe 32, a blood dialyzer pipe 33, an arterial connecting pipe 21 and a venous connecting pipe 22.

[0042] When the blood perfusion device 5 is used, physiological saline is used to preflush the blood perfusion device 5, and the physiological saline enters from the arterial end, flows through the arterial pot import pipe 13, the arterial pot export pipe 14, the pump pipe 12 and the arterial connecting pipe 21, and then enters the blood dialyzer pipe 33, and the physiological saline flows out from the blood dialyzer pipe 33 and flows through the venous pot import pipe 31 and the venous pot export pipe 32, and then enters the waste liquid bag 9.

[0043] In the utility model, the blood perfusion device 5 and the blood dialysis device 6 required pipeline is combined through the plurality of pipeline clamps 4, and the connection required by blood perfusion and other blood purification modes (such as hemodialysis) is integrated together. This makes medical staff not need to use a plurality of complex separate pipelines to splice when operating, simplifies the operation process, improves the efficiency of hemodialysis; the waste liquid bag 9 is tightly connected with the waste liquid bag connecting pipe 25 through the fastening clamping mechanism 111, avoids environmental pollution caused by waste liquid leakage, and further improves the practicability of the blood circuit; a plurality of connection interfaces and some open operation steps are reduced through the integrated connecting pipe, closed pre-charging, closed blood return and the like can be achieved. Blood leakage can be effectively prevented, and the invasion of external bacteria and other pathogens is minimized. Compared with the traditional connection mode, the connection tightness is better, and the infection risk caused by the sealing of the interface is reduced.

[0044] In some embodiments, as shown in Figures 3-5 The fastening clamping mechanism 111 includes an outer threaded pipe 1111, a pressing inclined surface 1112, an inner threaded pipe 1113 and a pressing ring 1114, the outer threaded pipe 1111 is fixedly installed at the upper end of the waste liquid bag connecting pipe 25, the inner threaded pipe 1113 is fixedly installed at the lower end of the waste liquid bag 9, the pressing ring 1114 is fixedly installed in the inner threaded pipe 1113, the outer threaded pipe 1111 is screwed with the inner threaded pipe 1113, and the pressing ring 1114 is made of rubber;

[0045] In the utility model, when medical staff needs to install the waste liquid bag 9, the outer threaded pipe 1111 is connected with the inner threaded pipe 1113 by rotating the inner threaded pipe 1113, and in the rotating process, the pressing inclined surface 1112 continuously compresses the pressing ring 1114, the compressed pressing ring 1114 applies elastic force to the pressing inclined surface 1112, so that the connection between the outer threaded pipe 1111 and the inner threaded pipe 1113 is more tight.

[0046] In the utility model, the connection between the waste liquid bag 9 and the waste liquid bag connecting pipe 25 is more tight through the cooperation of the pressing inclined surface 1112 and the pressing ring 1114, so that the waste liquid bag 9 and the waste liquid bag connecting pipe 25 are more tightly connected, and environmental pollution caused by waste liquid leakage is avoided.

[0047] In some embodiments, as shown in Figure 6As shown, as a preferred embodiment of the utility model, when blood flows into the arterial pot 7, the pipeline clamp 4 between the arterial pressure monitoring pipe 15 and the arterial pot 7 is opened, so that the arterial blood flows into the externally arranged pressure detector through the arterial pressure monitoring pipe 15, and the arterial pressure of the patient can be measured; similarly, the pipeline clamp 4 between the venous pressure monitoring pipe 34 and the venous pot 8 is opened, so that the venous blood flows into the externally arranged pressure detector through the venous pressure monitoring pipe 34, and the venous pressure of the patient can be measured.

[0048] The above examples are only used to illustrate the technical solutions of the utility model, rather than limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. An extracorporeal circulation blood circuit for hemodialysis combined with hemoperfusion, comprising an arterial blood circuit (1), a hemoperfusion device blood circuit (2) and a venous blood circuit (3), characterized in that: the arterial blood circuit (1) comprises an aortic tube (11), a pump tube (12), an arterial pot inlet tube (13), an arterial pot outlet tube (14) and an arterial pressure monitoring tube (15) arranged along the direction of arterial blood flow; and the aortic tube (11), the pump tube (12), the arterial pot inlet tube (13) and the arterial pot outlet tube (14) are connected together in parallel; wherein the arterial pot inlet tube (13), the arterial pot outlet tube (14) and the arterial pressure monitoring tube (15) are in communication with an arterial pot (7); the venous blood circuit (3) comprises a venous pot inlet tube (31), a venous pot outlet tube (32), a hemodialyzer tube (33) and a venous pressure monitoring tube (34) arranged along the direction of venous blood flow; the venous pot inlet tube (31), the venous pot outlet tube (32) and the venous pressure monitoring tube (34) are in communication with a venous pot (8); the venous pot outlet tube (32) and the hemodialyzer tube (33) are in communication with a hemodialyzer (6); the hemoperfusion device blood circuit (2) comprises an arterial connecting tube (21), a venous connecting tube (22), a waste liquid discharge tube (23), an arterial-venous flow-through tube (24) and a waste liquid bag connecting tube (25); the arterial pot outlet tube (14) is in communication with the arterial connecting tube (21), and the arterial connecting tube (21) is connected to the lower end of a hemoperfusion device (5); the waste liquid discharge tube (23) is connected to the upper end of the hemoperfusion device (5); the waste liquid discharge tube (23) is connected to the lower end of a three-way tube (10); the venous connecting tube (22) is in communication with the hemodialyzer tube (33); the left end of the venous connecting tube (22) is connected to the right end of the three-way tube (10); the lower end of the waste liquid bag connecting tube (25) is connected to the upper end of the three-way tube (10), and the upper end of the waste liquid bag connecting tube (25) is connected to a waste liquid bag (9) through a fastening clamping mechanism (111); the arterial-venous flow-through tube (24) is arranged between the hemodialyzer tube (33) and the arterial pot outlet tube (14), and the arterial-venous flow-through tube (24) is in communication with the hemodialyzer tube (33) and the arterial pot outlet tube (14). A tube clamp (4) is arranged between the arterial pressure monitoring tube (15) and the arterial pot (7), and a tube clamp (4) is arranged between the venous pressure monitoring tube (34) and the venous pot (8).

2. The extracorporeal circulation blood circuit for hemodialysis combined with hemoperfusion according to claim 1, characterized in that, A tube clamp (4) is arranged between the arterial pot outlet tube (14) and the hemoperfusion device blood circuit (2), and a tube clamp (4) is arranged between the hemodialyzer tube (33) and the hemoperfusion device blood circuit (2).

3. The extracorporeal circulation blood circuit for hemodialysis combined with hemoperfusion according to claim 2, characterized in that, A tube clamp (4) is arranged between the arterial pot outlet tube (14) and the arterial connecting tube (21), a tube clamp (4) is arranged between the waste liquid discharge tube (23) and the three-way tube (10), and a tube clamp (4) is arranged between the waste liquid bag connecting tube (25) and the three-way tube (10).

4. The extracorporeal circulation blood circuit for hemodialysis combined with hemoperfusion according to claim 3, characterized in that, A tube clamp (4) is arranged between the hemodialyzer tube (33) and the venous connecting tube (22), and a tube clamp (4) is arranged on the arterial-venous flow-through tube (24).

5. The extracorporeal circulation blood circuit for hemodialysis combined with hemoperfusion according to claim 4, characterized in that, ​ 6. The extracorporeal circulation blood circuit for hemodialysis combined with hemoperfusion according to claim 5, characterized in that, The pipeline clamp (4) is a spring water stop clamp.

7. The extracorporeal circulation blood circuit for hemodialysis combined with hemoperfusion according to claim 6, characterized in that, All pipelines in the extracorporeal blood circuit are medical standard flexible tubes.

8. The extracorporeal circulation blood circuit for hemodialysis combined with hemoperfusion according to claim 7, characterized in that, The fastening clamping mechanism (111) comprises an outer threaded pipe (1111), a pressing inclined surface (1112), an inner threaded pipe (1113) and a pressing ring (1114), the outer threaded pipe (1111) is fixedly installed at the upper end of the waste liquid bag connecting pipe (25), the inner portion of the outer threaded pipe (1111) is provided with the pressing inclined surface (1112); the inner threaded pipe (1113) is fixedly installed at the lower end of the waste liquid bag (9); and the inner portion of the inner threaded pipe (1113) is fixedly installed with the pressing ring (1114); the inner threaded pipe (1113) is in threaded connection with the outer threaded pipe (1111).

9. The extracorporeal circuit for hemodialysis combined with hemoperfusion according to claim 8, characterized in that, The pressing ring (1114) is made of rubber material.

10. The extracorporeal circulation blood circuit for hemodialysis combined with hemoperfusion according to claim 9, characterized in that, The arterial pot (7) and the venous pot (8) are both made of PVC material containing ATBC non-orthophenyl plasticizer.

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