Excess blood recovery device used during ECMO machine withdrawal

Abstract

The utility model relates to the technical field of ECMO residual blood recovery devices, and discloses an ECMO residual blood recovery device during machine withdrawal, which comprises a guide tube, a connecting seat is fixedly assembled on the outer wall of the guide tube, an expansion air column is fixedly assembled on the inner wall of the connecting seat, an air pump is fixedly assembled on the top of the guide tube, an air guide tube is mounted on the outer wall of the air pump, and a valve is mounted on the air guide tube. And a guide cylinder is fixedly assembled on the outer wall of the guide pipe. According to the residual blood recovery device during ECMO withdrawal, the connecting seat is arranged on the outer wall of the guide pipe, the expansion air column is arranged on the inner wall of the connecting seat, and air is supplied to the inner cavities of the air guide pipe and the expansion air column under the action of the air pump, so that the expansion air column is expanded; and the pipeline is fixed under the expansion action of the expansion air column, so that the pipeline of the ECMO equipment is stably butted with the guide pipe, and residual blood in the ECMO equipment is conveniently recovered under the action of the guide pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to ECMO residual blood recovery device technical field, concretely is residual blood recovery device when ECMO is taken off. BACKGROUND

[0002] Residual blood recovery device when ECMO is taken off is a kind of equipment specially used for residual blood in pipeline, membrane lung, centrifugal pump and other components after extracorporeal membrane oxygenation treatment is closed, efficient, safe recovery and return, and the core purpose is to reduce the loss of effective circulating blood volume of patient, reduce the dependence of allogeneic blood transfusion, avoid clinical operation risk.

[0003] Traditional residual blood recovery device when using, often need manual residual blood in equipment to be recovered, ECMO equipment when using, pipeline is more, leading to when residual blood is recovered, manual recovery efficiency is lower, cannot be well realized to the complete recovery of residual blood in ECMO equipment, leading to the recovery of traditional equipment has certain limitation. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of prior art, the utility model provides residual blood recovery device when ECMO is taken off, has the advantages of good recovery effect, convenient to use, solves the problem raised in the above background art.

[0005] The utility model provides following technical scheme: residual blood recovery device when ECMO is taken off, including guide pipe, the outer wall of guide pipe is fixedly equipped with connecting seat, the inner wall of connecting seat is fixedly equipped with inflatable air column, the top of guide pipe is fixedly equipped with air pump, the outer wall of air pump is installed with air pipe, the outer wall of guide pipe is fixedly equipped with guide cylinder, the inner wall of guide cylinder is fixedly equipped with limit rod, the outer wall of limit rod is movably sleeved with reset spring, the outer wall of limit rod is movably sleeved with moving seat, the outer wall of moving seat is fixedly equipped with closure plate, the bottom of guide cylinder is fixedly equipped with guide pipe, the inner wall of guide pipe is screwed with collecting cylinder, the outer wall of guide cylinder is fixedly equipped with connecting pipe, the inner wall of connecting pipe is installed with limit block, the outer wall of connecting pipe is fixedly equipped with negative pressure pump.

[0006] As a preferred technical scheme of the utility model: the outer wall of air pipe is communicated with the outer wall of inflatable air column, the inflatable air column is prepared from natural rubber.

[0007] As a preferred technical scheme of the utility model: the number of inflatable air column is two, and two inflatable air columns are installed on the inner wall of connecting seat respectively.

[0008] As a preferred technical scheme of the utility model: the outer wall of reset spring is respectively contacted with the inner wall of guide cylinder and the outer wall of moving seat, and reset spring is prepared from high carbon steel.

[0009] As a preferred technical scheme of the utility model: the inner chamber of the guide pipe is communicated with the inner chamber of the guide cylinder, the outer wall diameter of the sealing plate matches with the inner wall diameter of the guide pipe.

[0010] As a preferred technical scheme of the utility model: the outer wall shape of the limiting block matches with the inner wall shape of the connecting pipe, the inner wall diameter of the guide cylinder is larger than the outer wall diameter of the sealing plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1、This ECMO when the blood recovery device of remaining machine, this ECMO when the blood recovery device of remaining machine, through the connecting seat that is set up on the outer wall of guide pipe, and the inflation air column that is set up on the inner wall of connecting seat, under the action of air pump, to the inner chamber of guide tube and inflation air column supply gas, so that inflation air column expands, under the action of inflation air column expansion, realize the fixation to pipeline, so that the pipeline of ECMO equipment stably butt joint to guide pipe under the action of guide pipe, in order to under the action of guide pipe, the remaining blood in ECMO equipment is recovered.

[0013] 2、This ECMO when the blood recovery device of remaining machine, through the limiting rod that is set up on the outer wall of guide cylinder, under the action of limiting rod, can guide mobile seat, make mobile seat and sealing plate can move along the inner wall of guide cylinder, make the remaining blood after entering the inner chamber of guide cylinder, only can enter the inner chamber of guide pipe downward, and make the remaining blood enter the inner chamber of collecting cylinder and store, better recovery of remaining blood, inject into the body of patient again. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0015] Figure 2 It is the connecting seat structure schematic diagram of the utility model;

[0016] Figure 3 It is the connecting pipe structure schematic diagram of the utility model;

[0017] Figure 4 It is the guide pipe structure schematic diagram of the utility model;

[0018] Figure 5 It is the guide pipe cross section structure schematic diagram of the utility model.

[0019] In the drawing: 1, guide pipe;2, connecting seat;3, inflation air column;4, guide tube;5, air pump;6, return spring;7, guide cylinder;8, limiting rod;9, mobile seat;10, sealing plate;11, guide pipe;12, collecting cylinder;13, connecting pipe;14, negative pressure pump;15, limiting block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the utility model.

[0021] Please refer to Figure 1 - Figure 5 , the ECMO weaning blood recovery device, including guide pipe 1, the outer wall of guide pipe 1 is fixedly equipped with connecting seat 2, the inner wall of connecting seat 2 is fixedly equipped with inflatable air column 3, the top of guide pipe 1 is fixedly equipped with air pump 5, the outer wall of air pump 5 is installed with air duct 4, the outer wall of guide pipe 1 is fixedly equipped with guide cylinder 7, the inner wall of guide cylinder 7 is fixedly equipped with limit rod 8, the outer wall of limit rod 8 is movably sleeved with reset spring 6, the outer wall of limit rod 8 is movably sleeved with moving seat 9, the outer wall of moving seat 9 is fixedly equipped with closure plate 10, the bottom of guide cylinder 7 is fixedly equipped with guide pipe 11, the inner wall of guide pipe 11 is threadedly connected with collection cylinder 12, the outer wall of guide cylinder 7 is fixedly equipped with connecting pipe 13, the inner wall of connecting pipe 13 is installed with limit block 15, the outer wall of connecting pipe 13 is fixedly equipped with negative pressure pump 14;

[0022] In the above structure, by setting connecting seat 2 on the outer wall of guide pipe 1 and inflatable air column 3 on the inner wall of connecting seat 2, air is supplied to the inner cavity of inflatable air column 3 under the action of air pump 5 and air duct 4, so that inflatable air column 3 expands, and after inflatable air column 3 expands, the machine pipeline can be connected and fixed with guide pipe 1, and then the residual blood in the machine can be recovered under the action of guide pipe 1.

[0023] In a preferred embodiment: the outer wall of air duct 4 communicates with the outer wall of inflatable air column 3, and inflatable air column 3 is made of natural rubber;

[0024] In the above structure, by setting inflatable air column 3 on the inner wall of connecting seat 2, the inner cavity of inflatable air column 3 is inflated by air pump 5 and air duct 4, so that inflatable air column 3 expands, and the pipeline outer wall is fixed under the action of inflatable air column 3 expanding, so that ECMO pipeline is connected with guide pipe 1, and the residual blood in the pipeline is pumped under the condition of negative pressure pumping by negative pressure pump 14.

[0025] In a preferred embodiment: the number of inflatable air column 3 is two, and the two inflatable air columns 3 are installed on the inner wall of connecting seat 2 respectively;

[0026] In the structure, the two expansion air columns 3 arranged on the two sides of the inner wall of the connecting seat 2 can fix the outer wall of the pipeline under the action of the two expansion air columns 3, and the ECMO pipeline can be fixed under the expansion and compression of the expansion air columns 3, so that the residual blood in the ECMO pipeline can be pumped.

[0027] In a preferred embodiment: the outer wall of the reset spring 6 is in contact with the inner wall of the guide cylinder 7 and the outer wall of the moving seat 9 at both ends, and the reset spring 6 is made of high carbon steel;

[0028] In the structure, the reset spring 6 arranged on the outer wall of the limiting rod 8 can drive the moving seat 9 under the action of the reset spring 6, so that the moving seat 9 is attached to the inner wall of the guide cylinder 7, so that the closure plate 10 can close the inner cavity of the guide cylinder 7, so that the blood can only pass through the guide cylinder 7 into the inner cavity of the guide pipe 11 in one direction.

[0029] In a preferred embodiment: the inner cavity of the guide pipe 11 communicates with the inner cavity of the guide cylinder 7, and the outer wall diameter of the closure plate 10 matches the inner wall diameter of the guide pipe 1;

[0030] In the structure, the guide pipe 11 arranged at the bottom of the guide cylinder 7 can guide the blood pumped up in the inner cavity of the guide cylinder 7 under the action of the guide pipe 11, so that the blood enters the inner cavity of the collection cylinder 12 along the guide pipe 11, and the blood is recycled and stored under the action of the collection cylinder 12.

[0031] In a preferred embodiment: the outer wall shape of the limiting block 15 matches the inner wall shape of the connecting pipe 13, and the inner wall diameter of the guide cylinder 7 is greater than the outer wall diameter of the closure plate 10;

[0032] In the structure, the limiting block 15 arranged on the inner wall of the connecting pipe 13 can block the inner cavity of the connecting pipe 13 under the action of the limiting block 15, so that the blood can only exist in the inner cavity of the guide cylinder 7 under the action of the guide cylinder 7 and the connecting pipe 13, and the blood is guided and stored under the action of the guide pipe 11. The blood is stored in the inner cavity of the collection cylinder 12, so that the blood can be reused subsequently.

[0033] Working Principle: During the use of the above equipment, when it is necessary to recover residual blood in the ECMO machine tubing, the ECMO equipment tubing is connected to the guide tube 1. Then, the air pump 5 is started, and under the action of the air pump 5, the inner cavity of the guide tube 4 and the expansion column 3 is inflated. After the expansion column 3 is inflated, it can compress and fix the tubing, so that the equipment tubing is stably fixed to the outer wall of the guide tube 1. Then, the negative pressure pump 14 is started, and under the action of the negative pressure pump 14, negative pressure is drawn, thereby causing the sealing plate 1 to... Under negative pressure, the guide tube 1 moves towards the side closer to the connecting tube 13 and compresses the reset spring 6, making the inner cavity of the guide tube 1 connected to the inner cavity of the guide tube 7. This allows the residual blood in the ECMO device to enter the inner cavity of the guide tube 1 and the inner cavity of the guide tube 7, and then enter the inner cavity of the collection tube 12 along the guide tube 11. When blood aspiration stops, the sealing plate 10 and the moving seat 9 are driven to reset under the action of the reset spring 6, thereby sealing the inner cavity of the guide tube 1 with the sealing plate 10, completing the recovery of the residual blood in the ECMO device.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A blood recovery device for use during ECMO weaning, comprising a guide tube (1), characterized in that: The outer wall of the guide pipe (1) is fixedly provided with a connecting seat (2), the inner wall of the connecting seat (2) is fixedly provided with an expanded air column (3), the top of the guide pipe (1) is fixedly provided with an air pump (5), the outer wall of the air pump (5) is installed with a gas guide pipe (4), the outer wall of the guide pipe (1) is fixedly provided with a guide cylinder (7), the inner wall of the guide cylinder (7) is fixedly provided with a limiting rod (8), the outer wall of the limiting rod (8) is movably sleeved with a reset spring (6), the outer wall of the limiting rod (8) is movably sleeved with a moving seat (9), the outer wall of the moving seat (9) is fixedly provided with a closing plate (10), the bottom of the guide cylinder (7) is fixedly provided with a guide pipe (11), the inner wall of the guide pipe (11) is threadedly connected with a collecting cylinder (12), the outer wall of the guide cylinder (7) is fixedly provided with a connecting pipe (13), the inner wall of the connecting pipe (13) is installed with a limiting block (15), the outer wall of the connecting pipe (13) is fixedly provided with a negative pressure pump (14).

2. The blood recovery device of claim 1, wherein: The outer wall of the gas guide pipe (4) is communicated with the outer wall of the expanded air column (3), and the expanded air column (3) is prepared from natural rubber.

3. The blood recovery device of claim 1, wherein: The number of the expanded air column (3) is two, and the two expanded air columns (3) are installed on the inner wall of the connecting seat (2) respectively.

4. The device of claim 1, wherein: The outer wall of the reset spring (6) is in contact with the inner wall of the guide cylinder (7) and the outer wall of the moving seat (9) respectively, and the reset spring (6) is prepared from high carbon steel.

5. The device of claim 1, wherein: The inner cavity of the guide pipe (11) is communicated with the inner cavity of the guide cylinder (7), and the outer wall diameter of the closing plate (10) matches the inner wall diameter of the guide pipe (1).

6. The device of claim 1, wherein: The outer wall shape of the limiting block (15) matches the inner wall shape of the connecting pipe (13), and the inner wall diameter of the guide cylinder (7) is larger than the outer wall diameter of the closing plate (10).

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