CN213284804U

CN213284804U - Extracorporeal membrane oxygenation shunt tube capable of calculating flow

Info

Publication number: CN213284804U
Application number: CN202021258664.5U
Authority: CN
Inventors: 何许伟; 邱倩文; 陈德源; 赖景凤; 陈玉峰; 邱益妹
Original assignee: Lishui City Peoples Hospital
Current assignee: Lishui City Peoples Hospital
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-05-28
Anticipated expiration: 2030-07-01

Abstract

An extracorporeal membrane lung oxygenation shunt tube capable of calculating flow comprises a power pump and an oxygenator, wherein a first connecting tube is arranged at the right end of the power pump, the first connecting tube is connected with the output end of the oxygenator, a main flow meter is arranged at the middle end of the first connecting tube, the input end of the oxygenator is connected with a second connecting tube, a third connecting tube is arranged at the left end of the power pump, the left end of the shunt tube is connected with the third connecting tube, a branch tube is arranged outside the middle end of the shunt tube, a first flow meter is arranged at the middle end of the branch tube, a switch valve is arranged on the branch tube and is connected with a first three-way valve through a pipeline, a first shunt tube is arranged on the left side of the first three-way valve at the left end, the first shunt tube is connected with a first puncture tube, a second flow meter is arranged at the middle end of the, the other end of the second shunt tube is connected with a second puncture tube, and the middle end of the second shunt tube is provided with a third flowmeter.

Description

Extracorporeal membrane oxygenation shunt tube capable of calculating flow

Technical Field

The utility model relates to a medical auxiliary equipment especially relates to an external membrane lung oxygenation shunt tubes that can calculate flow.

Background

Currently, an extracorporeal membrane oxygenation (ECMO) system mainly comprises a membrane lung, a centrifugal pump and a circulation pipeline. The principle is that the venous blood in the body is led out of the body, and is injected into the artery or vein system of a patient after being oxygenated by an artificial cardiopulmonary bypass made of special materials, so that the whole or partial cardiopulmonary replacement effect is achieved, and the oxygenation blood supply of the visceral organs of the human body is maintained. When the ECMO in a vein-artery mode is used, the lower limb at the side of an artery catheter is easy to have insufficient blood supply at the far end, so that limb ischemic necrosis is caused, the hospitalization time of a patient is further prolonged remarkably, the economic burden and the social burden of the patient are increased, and the ECMO can be seriously disabled or threaten the life of the patient. Currently, the side hole of the artery supply vascular path is commonly used clinically to connect the external artery side branch and establish the arterial circulation system at the far end of the limb, and the intubation mode is widely accepted at present. However, the diameter of the artery branch is small, the blood flow speed of the collateral circulation system is low, emboli is easily formed to block the vessel, and the blood flow in the external artery side branch cannot be monitored, so that the sufficient blood flow in the artery blood supply pipeline or the artery branch cannot be ensured, and the blood supply condition of a patient cannot be ensured.

Disclosure of Invention

The utility model discloses solve the problem that above-mentioned prior art exists, provide a can calculate the external membrane lung oxygenation shunt tubes of flow, the device structural design is reasonable, can the blood flow volume in the real-time supervision artery branch, can also in time discover the pipeline coagulation or unobstructed degree through the change of flow in the artery branch.

The utility model provides a technical scheme that its technical problem adopted: the extracorporeal membrane lung oxygenation flow dividing pipe capable of calculating the flow comprises a power pump and an oxygenator, wherein one end of a first connecting pipe is hermetically connected to the lower side of the right end of the power pump, the other end of the first connecting pipe is hermetically connected with the output end of the oxygenator, a main flow meter is hermetically connected to the middle end of the first connecting pipe, a second connecting pipe connected with the vein of a patient is hermetically connected to the input end of the oxygenator, a third connecting pipe connected with the artery of the patient is hermetically connected to the lower side of the left end of the power pump through a flow dividing pipe, the right end of the flow dividing pipe is hermetically connected to the lower side of the left end of the power pump, the left end of the flow dividing pipe is hermetically connected with the third connecting pipe, one end of a branch pipe is hermetically connected to the outer side of the middle end of the flow dividing pipe, a first flow meter is arranged at the middle end of the branch, the left end of the first three-way valve is connected with one end of a first shunt pipe in a sealing way on the left side, the other end of the first shunt pipe is connected with a first puncture pipe in a sealing way, the middle end of the first shunt pipe is connected with a second flowmeter in a sealing way, a plurality of shunt ends of the first three-way valve are connected with a second shunt pipe in a sealing way, the other end of the second shunt pipe is connected with a second puncture pipe in a sealing way, the middle end of the second shunt pipe is connected with a third flowmeter in a sealing way, the branch pipes are provided with the first flowmeter, the first shunt pipe and the second shunt pipe are provided with the second flowmeter and the third flowmeter, so that the blood flow in the branch pipes and the plurality of shunt pipes can be monitored in real time, whether blood coagulation occurs in the arterial branch pipes or the patency of the pipes can be found in time through the change of the, ensuring sufficient blood flow in the arterial blood supply pipeline.

In order to further improve the structure, the outer sides of the first puncture tube and the second puncture tube are respectively provided with a fixed sleeve, the inner side of the fixed sleeve is provided with a channel part which is respectively positioned at the outer sides of the first puncture tube and the second puncture tube, the inner side of the channel part is provided with an inflation cavity, the left end of the channel part is provided with an airbag part which is folded into the inflation cavity, the outer side of the right end of the fixed sleeve is provided with a connecting part, the inner side of the connecting part is provided with an inflation head which is connected with the channel part, the outer side of the upper end of the connecting part is in threaded connection with a sealing cover, the central position of the upper end of the sealing cover is provided with one end of an inflation tube which is connected with the inflation head, the other end of the inflation tube is provided with an inflation head, the middle end of the inflation tube is in sealed connection with a one-way inflation valve and, gas enters the air bag part through the inflation tube and the inflation head, the outer side of the channel part is provided with the fixed sleeve, so that the channel part of the air bag part can not expand when inflated to influence the puncture effect, and the expanded air bag part can wrap the head of the puncture tube, so that the head of the puncture tube floats, and the head of the puncture tube is prevented from damaging blood vessels.

Further perfect, be equipped with sealing connection between one-way inflation valve and the sealed lid relief valve on the gas tube is equipped with the relief valve for strong bag portion then can not continue the increase after expanding to certain pressure, exceeds certain pressure then can the relief valve pressure release.

Further perfect, connecting portion upper end is opened has the standing groove, it has to be located to aerify the head upper end fixed even the sealing ring in the standing groove is equipped with the sealing ring that is located the standing groove, avoids passageway portion from fixed intraductal roll-off when aerifing for the fixed effectual of passageway portion.

The sealing structure is further perfected, the plane of the upper end of the sealing ring is 1-2mm higher than the plane of the upper end of the placing groove, so that the sealing cover is firstly extruded with the sealing ring when being screwed downwards, the sealing cover and the connecting part are sealed through the extruded sealing ring, and the sealing performance between the sealing cover and the connecting part is good.

Further perfecting, total flowmeter, first flowmeter, second flowmeter and third flowmeter pass through wire electric connection and have the monitor, are equipped with the monitor for total flowmeter, first flowmeter, second flowmeter and third flowmeter's statistical result is more audio-visual to be reacted on the panel of monitor, and the medical personnel of being convenient for in time discover the problem.

The utility model discloses profitable effect is: the utility model has the advantages of reasonable design, be equipped with first flowmeter on the branch pipe, be equipped with second flowmeter and third flowmeter on first shunt pipe and second shunt pipe, make the blood flow in branch pipe and a plurality of shunt pipes can obtain real-time monitoring, can in time discover whether the interior pipeline of artery branch takes place the blood coagulation or judge the patency degree of pipeline through the change of blood flow, and then calculate the quantity of the blood flow that lets in the artery blood supply pipeline through the monitoring of total flowmeter, guarantee the blood flow in the artery blood supply pipeline sufficient, be equipped with passageway portion, passageway portion left end is equipped with the gasbag portion of being connected with the gas cavity, after the puncture pipe penetrates the blood vessel, through inflating to the head of inflating, gas enters gasbag portion through gas tube and gas head, the passageway portion outside is equipped with fixed sleeve pipe, make gasbag portion can not take place the inflation and influence the puncture effect when aerifing, the head of the puncture tube can be wrapped by the expanded air sac part, so that the head of the puncture tube floats, and the head of the puncture tube is prevented from damaging blood vessels.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 2;

FIG. 4 is a schematic view of the configuration of the bladder portions of the first and second puncture tubes when uninflated;

FIG. 5 is an enlarged view of portion C of FIG. 4;

fig. 6 is an enlarged view of a portion D in fig. 4.

Description of reference numerals: 1. the device comprises a power pump, 2, an oxygenator, 3, a first connecting pipe, 4, a total flow meter, 5, a second connecting pipe, 6, a shunt pipe, 7, a third connecting pipe, 8, a branch pipe, 9, a first flow meter, 10, a switch valve, 11, a first three-way valve, 12, a first shunt pipe, 13, a first puncture pipe, 14, a second flow meter, 15, a second shunt pipe, 16, a second puncture pipe, 17, a third flow meter, 18, a fixed sleeve, 19, a channel part, 20, an inflation cavity, 21, a connecting part, 211, an air bag part, 22, an inflation head, 23, a sealing cover, 24, an inflation pipe, 25, an inflation head, 26, a one-way inflation valve, 27, a pressure release valve, 28, a placing groove, 29, a sealing ring, 30 and a monitor.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

with reference to the accompanying drawings: the extracorporeal membrane lung oxygenation shunt tube capable of calculating the flow comprises a power pump 1 and an oxygenator 2, wherein one end of a first connecting tube 3 is hermetically connected to the lower side of the right end of the power pump 1, the other end of the first connecting tube 3 is hermetically connected with the output end of the oxygenator 2, a total flow meter 4 is hermetically connected to the middle end of the first connecting tube 3, a second connecting tube 5 connected with the vein of a patient is hermetically connected to the input end of the oxygenator 2, a third connecting tube 7 connected with the artery of the patient is hermetically connected to the lower side of the left end of the power pump 1 through a shunt tube 6, the right end of the shunt tube 6 is hermetically connected to the lower side of the left end of the power pump 1, the left end of the shunt tube 6 is hermetically connected with the third connecting tube 7, one end of a branch tube 8 is hermetically connected to the outer side of the middle end, the other end of the branch pipe 8 is hermetically connected with one end of a switch valve 10, the other end of the switch valve 10 is hermetically connected with a plurality of first three-way valves 11 which are connected with each other through a pipeline, the left end of the first three-way valve 11 is hermetically connected with one end of a first branch pipe 12, the other end of the first branch pipe 12 is hermetically connected with a first puncture pipe 13, the middle end of the first branch pipe 12 is hermetically connected with a second flowmeter 14, the branch ends of the first three-way valves 11 are hermetically connected with a second branch pipe 15, the other end of the second branch pipe 15 is hermetically connected with a second puncture pipe 16, the middle end of the second branch pipe 15 is hermetically connected with a third flowmeter 17, the branch pipe is provided with a first flowmeter, the first branch pipe and the second branch pipe are provided with a second flowmeter and a third flowmeter, so that the blood flow in the branch pipe and the plurality of branch, whether blood coagulation occurs in the inner pipeline of the artery branch or the smoothness of the pipeline can be found in time through the change of the blood flow volume, and the amount of the blood flow volume led into the artery blood supply pipeline is calculated through the monitoring of the total flow meter, so that the sufficient blood flow volume in the artery blood supply pipeline is ensured.

The outer sides of the first puncture tube 13 and the second puncture tube 16 are both provided with a fixed sleeve 18, the inner side of the fixed sleeve 18 is provided with a channel part 19 which is respectively positioned at the outer sides of the first puncture tube 13 and the second puncture tube 16, the inner side of the channel part 19 is provided with an inflation cavity 20, the left end of the channel part 19 is provided with an airbag part 211 which is folded into the inflation cavity 20, the outer side of the right end of the fixed sleeve 18 is provided with a connecting part 21, the inner side of the connecting part 21 is provided with an inflation head 22 which is connected with the channel part 19, the outer side of the upper end of the connecting part 21 is in threaded connection with a sealing cover 23, the central position at the upper end of the sealing cover 23 is provided with one end of an inflation tube 24 which is connected with the inflation head 22, the other end of the inflation tube 24 is provided with an inflation head 25, the middle end of the inflation tube 24, after the puncture tube penetrates into a blood vessel, the inflation is carried out in the inflation head, gas enters the air bag part through the inflation tube and the inflation head, the outer side of the channel part is provided with a fixed sleeve, so that the channel part of the air bag part can not expand when inflated to influence the puncture effect, and the head of the puncture tube can be wrapped by the expanded air bag part, so that the head of the puncture tube floats, and the head of the puncture tube is prevented from damaging the blood vessel.

A pressure release valve 27 which is connected with the inflation tube 24 in a sealing way is arranged between the one-way inflation valve 26 and the sealing cover 23, and the pressure release valve is arranged, so that the strong bag part can not be increased after being expanded to a certain pressure, and the pressure release valve can release pressure when exceeding the certain pressure.

The upper end of the connecting part 21 is provided with a placing groove 28, the upper end of the inflation head 22 is fixedly connected with a sealing ring 29 positioned in the placing groove 28, and the sealing ring positioned in the placing groove is arranged, so that the channel part is prevented from sliding out of the fixed sleeve when inflated, and the fixing effect of the channel part is good.

The plane of the upper end of the sealing ring 29 is 1-2mm higher than the plane of the upper end of the placing groove 28, so that the sealing cover is firstly extruded with the sealing ring when being screwed downwards, the sealing cover and the connecting part are sealed through the extruded sealing ring, and the sealing performance between the sealing cover and the connecting part is good.

The total flow meter 4, the first flow meter 9, the second flow meter 14 and the third flow meter 17 are electrically connected with a monitor 30 through leads, and the monitor is arranged, so that the statistical results of the total flow meter, the first flow meter, the second flow meter and the third flow meter are more intuitively reflected on a panel of the monitor, and medical staff can find problems in time.

When the utility model is used, the pipelines are connected in sequence firstly, the first puncture tube 13 and the second puncture tube 16 are respectively inserted into the distal artery needing blood supply, then the inflation device inflates the inflation head 25, the gas enters the inflation cavity 20 through the inflation tube 24, then the inflation cavity 20 enters the air bag part 211 to extrude the air bag part 211 from the fixed sleeve 18 and expand outwards to wrap the head part of the puncture needle, the inflation is stopped until the relief valve 27 is deflated, the total blood flow flowing into the circulating device is counted through the total flow meter 4, the total blood flow flowing into the artery branch is counted through the first flow meter 9, the blood flow flowing into each part of the distal end is counted through the second flow meter 14 and the third flow meter 17, whether the blood coagulation occurs in the corresponding artery pipeline or the smoothness of the pipeline can be judged through the blood flow change of the second flow meter 14 and the third flow meter 17, thereby timely discovering problems occurring in the distal arterial line.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims

1. The utility model provides a can calculate extracorporeal membrane lung oxygenation shunt tubes of flow, includes power pump (1) and oxygenator (2), power pump (1) right-hand member downside sealing connection has the one end of first connecting pipe (3), the other end of first connecting pipe (3) with the output sealing connection of oxygenator (2), first connecting pipe (3) middle-end sealing connection has total flowmeter (4), the input sealing connection of oxygenator (2) has second connecting pipe (5) with patient's vein connection, power pump (1) left end downside has third connecting pipe (7) with patient's artery connection through shunt tubes (6) sealing connection, characterized by: the right end of the shunt pipe (6) is connected to the lower side of the left end of the power pump (1) in a sealing manner, the left end of the shunt pipe (6) is connected with the lower side of the left end of the third connecting pipe (7) in a sealing manner, the outer side of the middle end of the shunt pipe (6) is connected with one end of the branch pipe (8) in a sealing manner, the middle end of the branch pipe (8) is provided with a first flowmeter (9), the other end of the branch pipe (8) is connected with one end of a switch valve (10) in a sealing manner, the other end of the switch valve (10) is connected with a plurality of first three-way valves (11) which are connected with each other in a sealing manner through pipelines, the left end of the first three-way valves (11) is connected with one end of a first shunt pipe (12) in a sealing manner, the other end of the first shunt pipe (12) is connected with a first puncture pipe (13) in, the other end of the second shunt pipe (15) is connected with a second puncture pipe (16) in a sealing mode, and the middle end of the second shunt pipe (15) is connected with a third flowmeter (17) in a sealing mode.

2. The extracorporeal membrane oxygenation shunt capable of calculating flow as claimed in claim 1, wherein: the outer sides of the first puncture tube (13) and the second puncture tube (16) are respectively provided with a fixed sleeve (18), the inner side of the fixed sleeve (18) is provided with a channel part (19) which is respectively positioned at the outer sides of the first puncture tube (13) and the second puncture tube (16), the inner side of the channel part (19) is provided with an inflation cavity (20), the left end of the channel part (19) is provided with an air bag part (211) which is folded in the inflation cavity (20), the outer side of the right end of the fixed sleeve (18) is provided with a connecting part (21), the inner side of the connecting part (21) is provided with an inflation head (22) connected with the channel part (19), the outer side of the upper end of the connecting part (21) is in threaded connection with a sealing cover (23), the central position of the upper end of the sealing cover (23) is provided with one end of an inflation tube (24) connected with the inflation head (22), and the other end, the middle end of the inflation tube (24) is hermetically connected with a one-way inflation valve (26).

3. The extracorporeal membrane oxygenation shunt capable of calculating flow as claimed in claim 2, wherein: a pressure release valve (27) which is connected with the air charging pipe (24) in a sealing way is arranged between the one-way air charging valve (26) and the sealing cover (23).

4. An extracorporeal membrane oxygenation shunt capable of calculating flow as claimed in claim 2 or 3 wherein: the upper end of the connecting part (21) is provided with a placing groove (28), and the upper end of the inflating head (22) is fixedly connected with a sealing ring (29) positioned in the placing groove (28).

5. The extracorporeal membrane oxygenation shunt capable of calculating flow as claimed in claim 4, wherein: the upper end plane of the sealing ring (29) is 1-2mm higher than the upper end plane of the placing groove (28).

6. The extracorporeal membrane oxygenation shunt capable of calculating flow as claimed in claim 1, wherein: the total flow meter (4), the first flow meter (9), the second flow meter (14) and the third flow meter (17) are electrically connected with a monitor (30) through leads.