CN212756676U - Extracorporeal circulation pipeline suitable for hemodialysis - Google Patents

Abstract

The utility model relates to the field of medical equipment, and discloses an extracorporeal circulation pipeline suitable for hemodialysis, which comprises an arterial kettle, a venous kettle, a dialyzer, an arterial blood leading device and a venous blood returning device, wherein the arterial kettle is provided with a first arterial kettle input interface and an arterial kettle output interface, and the venous kettle is provided with a venous kettle input interface, a first venous kettle output interface and a second venous kettle output interface; the artery blood leading device is connected with a first artery pot input interface through a conduit, an artery pot output interface is connected with a dialyzer input interface through a conduit, a dialyzer output interface is connected with a vein pot input interface through a conduit, and the first vein pot output interface or a second vein pot output interface is connected with a vein blood returning device through a conduit or a first blood transfusion device respectively. Therefore, when the venous kettle blood clot loosens and falls suddenly to cause the blockage of the catheter between the first arterial kettle output interface or the first venous kettle output interface and the venous return device, the blood circulation can be established quickly, the operation is convenient, the time consumption is less, and the cost is low.

Description

Extracorporeal circulation pipeline suitable for hemodialysis

Technical Field

The utility model relates to the field of medical equipment, especially relate to an extracorporeal circulation pipeline suitable for hemodialysis.

Background

With the increasing number of patients with persistent hemodialysis and the continuous prolonging of the life of patients with hemodialysis, long-term hemodialysis gradually becomes one of the channels for prolonging the life of patients with hemodialysis, and the clinical application range of the hemodialysis is wider and wider. At present, the extracorporeal circulation pipeline for the existing hemodialysis machine mainly comprises an arterial kettle, a venous kettle and a dialyzer, but the dialysis process is as long as four hours, the pipeline is easy to cause blood coagulation to generate blood clots in the dialysis process, particularly in a venous tube, if the blood clots in the venous kettle are loosened suddenly and fall off to block the venous kettle or a venous return catheter is blocked to cause the situation that blood cannot return immediately, the whole pipeline needs to be replaced, the waste of blood of a patient in the whole pipeline is caused, the operation is very troublesome, the risk that air enters the dialyzer exists, and the condition of the patient is aggravated to threaten the life of the patient.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the utility model provides an in vitro circulation pipeline suitable for hemodialysis, when the sudden looseness of venous pot clot drops and leads to the pipe jam between first artery kettle output interface or first vein kettle output interface and the vein blood return ware, can establish blood circulation fast, convenient operation, it is few to use time, and with low costs.

In order to solve the technical problem, the utility model provides an extracorporeal circulation pipeline suitable for hemodialysis, including artery kettle, vein kettle, cerini dialyser cerini, artery draws blood ware and vein blood return ware, be equipped with first artery kettle input interface and artery kettle output interface on the artery kettle, be equipped with the vein kettle input interface that is located the top on the vein kettle, be located the first vein kettle output interface of bottom and be located the second vein kettle output interface of upper portion, be equipped with cerini dialyser cerini input interface and cerini dialyser cerini output interface on the cerini dialyser cerini; the artery blood leading device is connected with the first artery kettle input interface through a conduit, the artery kettle output interface is connected with the dialyzer input interface through a conduit, the dialyzer output interface is connected with the vein kettle input interface through a conduit, the first vein kettle output interface or the second vein kettle output interface is detachably connected with the vein blood returning device through a conduit or a first blood transfusion device, and a filter screen for filtering blood is arranged on the first vein kettle output interface.

As the utility model discloses preferred scheme, first vein kettle output interface with be equipped with first clamping on the pipe between the blood ware is returned to the vein, be equipped with the second clamping on the first blood transfusion ware.

As the preferred scheme of the utility model, first blood transfusion ware respectively with second vein kettle output interface with vein returns blood ware threaded connection.

As the utility model discloses preferred scheme, the arteria kettle output interface is including being located the first arteria kettle output interface of arteria kettle bottom with be located the second arteria kettle output interface on arteria kettle upper portion, first arteria kettle output interface or second arteria kettle output interface respectively through pipe or second blood transfusion ware with the connection can be dismantled to cerini dialyser cerini input interface, be equipped with the filter screen that is used for filtering blood on the first arteria kettle output interface.

As the utility model discloses preferred scheme, first arteria kettle output interface with be equipped with the third clamping on the pipe between the cerini dialyser cerini input interface, be equipped with the fourth clamping on the second blood transfusion ware.

As the preferred scheme of the utility model, the second blood transfusion ware respectively with second vein kettle output interface and cerini dialyser cerini input interface threaded connection.

As the preferred scheme of the utility model, first blood transfusion ware with second blood transfusion ware all includes connects gradually first connector, drips kettle, flow regulator and second connector through the pipe.

As the preferable proposal of the utility model, a filter screen for filtering blood is arranged in the drip cup.

As the utility model discloses preferred scheme, be equipped with the funnel in the kettle drip, the funnel is located the below of filter screen, and will the epicoele and cavity of resorption are separated into to the inner chamber of kettle drip.

As the preferable proposal of the utility model, a second arterial pot input interface for inputting the physiological saline is arranged on the arterial pot.

The embodiment of the utility model provides an extracorporeal circulation pipeline suitable for hemodialysis compares with prior art, and its beneficial effect lies in:

when in use, after the pipelines are connected in sequence, blood is led out from the body of a patient and flows through the arterial blood leading device, the first arterial kettle input interface, the arterial kettle output interface, the dialyzer input interface, the dialyzer output interface, the venous kettle input interface, the venous kettle, the first venous kettle output interface and the venous blood leading device in sequence and flows back to the body of the patient, and the process is circulated; when the blood clots of the venous pot suddenly loosen and fall off to cause the blockage of the output interface of the first arterial pot or the blockage of the conduit between the output interface of the first venous pot and the venous blood returning device, the conduit between the output interface of the first venous pot and the venous blood returning device is firstly disassembled, and then the first blood transfusion device is connected between the output interface of the second venous pot and the venous blood returning device, so that the blood is led out from the body of the patient and flows back to the body of the patient through the arterial blood returning device, the input interface of the first arterial pot, the output interface of the arterial pot, the input interface of the dialyzer, the output interface of the dialyzer, the input interface of the venous pot, the output interface of the second venous pot, the first blood transfusion device and the venous blood returning device; from this, when the sudden looseness of venous kettle clot drops and leads to that first venous kettle output interface blocks up or first venous kettle output interface and vein return the pipe between the blood ware and block up, can establish new blood return passageway between venous kettle and vein blood ware fast, can not cause patient's blood to waste in a large number, and convenient operation, moreover, the steam generator is simple in structure, and the time spent is few, reduce the probability that the patient's state of an illness aggravated, and when the pipeline did not block up, need not connect the blood transfusion ware in the pipeline, can not cause the wasting of resources, and is low in cost.

Drawings

Fig. 1 is a schematic structural diagram of an extracorporeal circulation circuit suitable for hemodialysis according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the extracorporeal circuit when the venous segment return line is occluded;

FIG. 3 is a schematic diagram of the extracorporeal circuit in the event of an occlusion of the arterial segment drainage circuit;

in the figure, 1, an arterial blood-drawing device; 2. a venous return; 3. the arteria cruris; 31. a first arterial pot input interface; 32. a second arterial pot input interface; 33. a first arterial pot output interface; 34. a second arterial pot output interface; 4. a venous pot; 41. a venous pot input interface; 42. a first venous pot output interface; 43. a second venous pot output interface; 5. a dialyzer; 51. a dialyzer input interface; 52. a dialyzer output interface; 6. a first blood transfusion apparatus; 7. a first card holder; 8. a second card holder; 9. a fifth card holder; 10. a third card holder; 11. a fourth card holder; 12. a sixth card holder; 13. a second blood transfusion apparatus; 14. a first connector; 15. a drip cup; 16. a flow regulator; 17. a second connector; 18. a funnel.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate the orientation or positional relationship, are used in the present invention as being based on the orientation or positional relationship shown in the drawings, and are used only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 and fig. 2, the preferred embodiment of the extracorporeal circulation circuit suitable for hemodialysis according to the preferred embodiment of the present invention includes an arterial blood leading device 1, a venous blood returning device 2, an arterial pot 3, a venous pot 4 and a dialyzer 5, wherein the arterial pot 3 is provided with a first arterial pot input interface 31 and an arterial pot output interface, the venous pot 4 is provided with a venous pot input interface 41 at the top, a first venous pot output interface 42 at the bottom and a second venous pot output interface 43 at the upper part, and the dialyzer 5 is provided with a dialyzer input interface 51 and a dialyzer output interface 52; the arterial blood leading device 1 is connected with the first arterial kettle input interface 31 through a conduit, the arterial kettle output interface is connected with the dialyzer input interface 51 through a conduit, the dialyzer output interface 52 is connected with the venous kettle input interface 41 through a conduit, the first venous kettle output interface 42 or the second venous kettle output interface 43 is detachably connected with the venous blood returning device 2 through a conduit or a first blood transfusion device 6, and a filter screen for filtering blood is arranged on the first venous kettle output interface 42.

Illustratively, a first clamp 7 is arranged on a conduit between the first venous kettle output interface 42 and the venous return device 2, a second clamp 8 is arranged on the first blood transfusion device 6, and specifically, a fifth clamp 9 is arranged on a conduit between the venous kettle input interface 41 and the dialyzer output interface 52, so that the on-off of the conduit and the first blood transfusion device 6 can be conveniently controlled, and blood is prevented from leaking from the interface when the venous return device is mounted and dismounted.

Illustratively, the first blood transfusion device 6 is respectively in threaded connection with the second venous kettle output interface 43 and the venous blood return device 2, so that the tightness of pipeline connection is improved, the separation of pipeline connection parts when pipeline pressure is high is prevented, and the leakage caused by insecure connection is avoided.

Illustratively, as shown in fig. 3, the arterial kettle output interface includes a first arterial kettle output interface 33 located at the bottom of the arterial kettle 3 and a second arterial kettle output interface 34 located at the upper part of the arterial kettle 3, the first arterial kettle output interface 33 or the second arterial kettle output interface 34 is detachably connected to the dialyzer input interface 51 through a catheter or a second blood transfusion device 13, respectively, the first arterial kettle output interface 33 is provided with a filter screen for filtering blood, so that the blood is filtered once before flowing into the dialyzer 5, so as to prevent impurities (such as clot) with large volume from blocking the dialyzer 5 and prolong the service life of the dialyzer 5, and in another embodiment, the first arterial kettle output interface 33 is not provided with a filter screen.

Illustratively, a third clamp 10 is arranged on a conduit between the first arterial kettle output interface 33 and the dialyzer input interface 51, a fourth clamp 11 is arranged on the second blood transfusion device 13, and specifically, a sixth clamp 12 is arranged on a conduit between the arterial blood drainage device 1 and the first arterial kettle input interface 31, so that the on-off of the conduit and the second blood transfusion device 13 can be conveniently controlled, and blood is prevented from leaking out from the interfaces when the assembly and disassembly are performed.

Illustratively, the second blood transfusion device 13 is respectively in threaded connection with the second venous kettle output interface 43 and the dialyzer input interface 51, so that the tightness of pipeline connection is improved, the separation of pipeline joints when the pipeline pressure is high is prevented, and the leakage caused by loose connection is avoided.

Illustratively, each of the first blood transfusion apparatus 6 and the second blood transfusion apparatus 13 comprises a first connector 14, a drip cup 15, a flow regulator 16 and a second connector 17 which are connected in sequence through a conduit, the flow direction of the blood flows from the first connector 14 to the second connector 17, and the speed of blood transfusion can be regulated or the blood transfusion apparatus can be closed; a filter screen is arranged in the drip cup 15 and can filter impurities or blood clots in blood; the cross section of the first connecting head 14 and the cross section of the first connecting head 14 are conical, so that the connection between the blood transfusion device and the venous pot 4, the venous blood drainage device, the arterial pot 3 and the dialyzer 5 is tighter.

Illustratively, be equipped with funnel 18 in the drip cup 15, funnel 18 is located the below of filter screen, and will the inner chamber of drip cup 15 separates into upper chamber and cavity of resorption, and from this, when the blood clot on the filter screen hinders blood flow, extrudes the cavity of resorption, is broken up behind the blood clot collision drip cup 15's the inner wall to make blood flow unblocked.

Illustratively, a second arterial vessel input interface 32 for inputting physiological saline is arranged on the arterial vessel 3; therefore, after the dialysis is finished, the physiological saline is input into the arterial pot 3 from the second arterial pot input interface 32 until the blood in the pipeline flows into the body of the patient, and the waste of the blood of the patient is reduced.

The utility model discloses a working process does: when the device is used, the second arterial kettle output interface 34, the second venous kettle output interface 43 and the second arterial kettle input interface 32 are plugged by plugs, after pipelines are connected in sequence, the first clamp 7, the third clamp 10, the fifth clamp 9 and the sixth clamp 12 are opened, blood is led out from a patient body and flows through the arterial blood leading device 1, the first arterial kettle input interface 31, the arterial kettle 3, the first arterial kettle output interface 33, the dialyzer input interface 51, the dialyzer 5, the dialyzer output interface 52, the venous kettle input interface 41, the venous kettle 4, the first venous kettle output interface 42 and the venous blood leading device in sequence to flow back to the patient body, and the circulation is carried out; when the venous pot 4 suddenly loosens and drops blood clots to block the first venous pot output port 42 or the conduit between the first venous pot output port 42 and the venous return device 2, namely the blockage of the blood return pipeline of the vein segment, the first clamp 7 and the fifth clamp 9 are closed, the catheter between the first venous pot output interface 42 and the vein blood leading device is disassembled, the first blood transfusion device 6 is connected between the second venous pot output interface 43 and the vein blood leading device, then the second clip 8 and the fifth clip 9 are opened, so that blood is led out from the patient and flows through the arterial blood leading device 1, the first arterial kettle input interface 31, the arterial kettle 3, the first arterial kettle output interface 33, the dialyzer input interface 51, the dialyzer 5, the dialyzer output interface 52, the venous kettle input interface 41, the venous kettle 4, the second venous kettle output interface 43, the first blood transfusion device 6 and the venous blood leading device in sequence and flows back to the patient; when the arterial pot 3 has a sudden loose drop of clots that results in the first arterial pot output port 33 becoming blocked or the conduit between the first arterial pot output port 33 and the dialyzer 5 becoming blocked, namely the arterial segment blood leading pipeline is blocked, the third clamp 10 and the sixth clamp 12 are closed, the catheter between the first arterial kettle output interface 33 and the dialyzer 5 is disassembled, the second blood transfusion device 13 is connected between the second arterial kettle output interface 34 and the dialyzer 5, then the fourth clip 11 and the sixth clip 12 are opened, so that blood is led out from the patient and flows through the arterial blood leading device 1, the first arterial kettle input interface 31, the arterial kettle 3, the second arterial kettle output interface 34, the second blood transfusion device 13, the dialyzer input interface 51, the dialyzer 5, the dialyzer output interface 52, the venous kettle input interface 41, the venous kettle 4, the first venous kettle output interface 42 and the venous blood leading device in sequence and flows back to the patient; after the dialysis is finished, the seventh clamp is opened, and the physiological saline is input into the arterial pot 3 until the blood in the pipeline flows into the body of the patient, so that the waste of the blood of the patient is reduced.

To sum up, the embodiment of the utility model provides an extracorporeal circulation pipeline suitable for hemodialysis, it is when the 4 blood clots of vein kettle suddenly become flexible drop lead to first vein kettle output interface 42 to block up or first vein kettle output interface 42 and vein return the pipe blockage between the blood ware 2, can establish new extracorporeal circulation pipeline between vein kettle 4 and vein blood ware fast, and when 3 blood clots of artery kettle suddenly become flexible drop and block up first artery kettle output interface 33, can establish new blood return passageway between artery kettle 3 and cerini dialyser cerini 5 fast, can not cause a large amount of wastes of patient's blood, and convenient operation, moreover, the steam generator is simple in structure, the operation is few, reduce the probability that the patient's condition aggravated, and when the pipeline does not block up, need not connect the blood transfusion ware in the pipeline, can not cause the wasting of resources, and is with low costs.

In the description of the present invention, it is to be understood that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are used in a generic sense, e.g., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (10)

1. An extracorporeal circulation pipeline suitable for hemodialysis is characterized by comprising an arterial kettle, a venous kettle, a dialyzer, an arterial blood leading device and a venous blood returning device, wherein the arterial kettle is provided with a first arterial kettle input interface and an arterial kettle output interface; the artery blood leading device is connected with the first artery kettle input interface through a conduit, the artery kettle output interface is connected with the dialyzer input interface through a conduit, the dialyzer output interface is connected with the vein kettle input interface through a conduit, the first vein kettle output interface or the second vein kettle output interface is detachably connected with the vein blood returning device through a conduit or a first blood transfusion device, and a filter screen for filtering blood is arranged on the first vein kettle output interface.

2. The extracorporeal circuit suitable for hemodialysis of claim 1, wherein a first clip is provided on the conduit between the first venous pot output port and the venous return, and a second clip is provided on the first blood transfusion set.

3. The extracorporeal circuit suitable for hemodialysis of claim 1, wherein the first blood set is threadedly connected to the second venous pot output port and the venous return, respectively.

4. The extracorporeal circuit suitable for hemodialysis of claim 1, wherein the arterial pot output port comprises a first arterial pot output port located at a bottom of the arterial pot and a second arterial pot output port located at an upper portion of the arterial pot, the first arterial pot output port or the second arterial pot output port is detachably connected to the dialyzer input port through a catheter or a second blood transfusion device, respectively, and a filter screen for filtering blood is disposed on the first arterial pot output port.

5. The extracorporeal circuit suitable for hemodialysis of claim 4, wherein a third clip is provided on the conduit between the first arterial ampule output port and the dialyzer input port, and a fourth clip is provided on the second hemospas.

6. The extracorporeal circuit suitable for hemodialysis of claim 4, wherein the second blood set is threadedly connected to the second venous pot output port and the dialyzer input port, respectively.

7. The extracorporeal circuit suitable for hemodialysis of claim 4, wherein the first and second blood transfusions comprise a first connector, a drip chamber, a flow regulator and a second connector connected in sequence via a conduit.

8. The extracorporeal circuit suitable for use in hemodialysis of claim 7, wherein a filter screen is provided in the drip chamber for filtering blood.

9. The extracorporeal circulation circuit suitable for hemodialysis of claim 8, wherein a funnel is provided in the drip chamber, the funnel is located below the filter screen and divides an inner cavity of the drip chamber into an upper cavity and a lower cavity.

10. The extracorporeal circuit of claim 1, wherein the arterial pot has a second arterial pot inlet port for the introduction of saline.

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