CN2134187Y

CN2134187Y - Bubble type oxygenator

Info

Publication number: CN2134187Y
Application number: CN 92233094
Authority: CN
Inventors: 屈晓明; 寿锡健
Original assignee: Xijing Medical Necessities Co ltd Xi'an City
Current assignee: Xijing Medical Necessities Co ltd Xi'an City
Priority date: 1992-09-09
Filing date: 1992-09-09
Publication date: 1993-05-26
Anticipated expiration: 2002-09-09

Abstract

The utility model discloses medical equipment for heart surgeries, which is popularly called an artificial lung and is composed of a coil heat exchanger, an oxygenation chamber, and a blood reservoir provided with a defoaming layer and a filtering layer. The bubble oxygenator of the utility model is characterized in that the center of the blood reservoir is provided with a blood stream center pipe whose upper part is an expanding type oxygenation expanding chamber, and an overflow sleeve is sheathed on the outside of the lower end of the blood stream central pipe; the heat exchanger in the oxygenation chamber is a serpentine coil made from a multiple thread corrugated pipe, so that when used, the utility model has the advantages of proper proportion of blood and oxygen, convenient regulation of carbon dioxide output, high heat exchanger effectiveness in the oxygenation chamber, little damage to blood, and suitability for long time blood stream transfer.

Description

Bubble type oxygenator

This utility model belongs to a kind of clinical medical apparatus and instruments that is used for cardiac operation under direct vision, also claims " artificial lung "--" oxygenator ".

Use more general oxygenator generally all to be bubble oxygenator at current clinical operation, it is to be made of heat exchanger, oxygenation chamber and blood reservoir that alveolar layer, filter course be housed.In existing this class apparatus, all focus on and make blood and oxygen that long flow process be arranged in heat exchanger and oxygenation chamber, to guarantee bigger oxygen content, but also just because Oxygenation is to carry out under the encapsulation situations of heat exchanger and oxygenation chamber, therefore, the stability of oxygenate and carbon dioxide are discharged relatively poor.

It is suitable stable that the purpose of this utility model provides a kind of blood oxygen ratio, the blood oxygenator that the carbon dioxide discharging performance is good.

Embodiment of the present utility model is that a blood flow central canal is installed at the center of blood reservoir, the top of this blood flow central canal is the oxygenate expansion chamber of expansion shape, outside, lower end cover one overflow pipe of this blood flow central canal, so that blood and oxygen enter before the human body through filtering layer later on leaving heat exchanger, make oxygen and blood have one section long oxygenate to stablize flow process, and the height of this overflow cover can be adjusted design as required.In order to improve the heat exchanger effectiveness of oxygenation chamber, the built-in heat exchanger of oxygenation chamber of the present utility model adopts multiple-threaded corrugated tube to make serpentine coil.

The utility model has the advantages that: use this bubble oxygenator, its blood oxygen ratio of the blood that obtains is suitable, and carbon dioxide output is easy to adjust during use, the heat exchanger effectiveness height of oxygenation chamber, and blood destroys little, is suitable for the long period turn of tidal stream.

Accompanying drawing is the structural representation of this utility model embodiment.

Among the figure: 1-water inlet, 2-heat exchanger, 3-outlet, the 4-blood inlet, 5-oxygen inlet, 6-oxygenation chamber, the 7-foam maker, 8-blood reservoir, 9-oxygenate expansion chamber, 10-blood flow central canal, 11-overflow cover, 12-removes alveolar layer, the 13-filter course, the outlet of 14-blood, the 15-exhaust regulating valve.

Embodiment:

Accompanying drawing is this utility model example structure sketch map.The serpentine coil heat exchanger 2 that the multiple thread corrugated tube is made is housed in oxygenation chamber 6, its upper end is a water inlet 1, the lower end is an outlet 3, oxygen inlet 5 is installed in the bottom of oxygenation chamber 6, the foam maker 7 that micropore titanium plate is made is housed on oxygen inlet 5, blood inlet 4 be arranged on oxygenation chamber 6 bottom titanium plate foam makers 7 above.The top of the top of oxygenation chamber 6 and blood reservoir 8 is communicated with, the center of blood reservoir 8 is a blood flow central canal 10, the top expansion of blood flow central canal 10 is oxygenate expansion chamber 9, the outside of blood flow central canal 10 is with overflow cover 11, alveolar layer 12 and filter course 13 are housed in the blood reservoir 8, blood outlet 14 is housed outside the lower end of blood reservoir 8 filter course 13, exhaust regulating valve 15 is housed, be used for controlling and the adjustment carbon dioxide output at the top of blood reservoir 8.

Claims

1, a kind of bubble oxygenator, be by heat exchanger, oxygenation chamber and alveolar layer be housed and the blood reservoir of filter course constitutes, it is characterized in that: there is a blood flow central canal at the center of blood reservoir, the top of this blood flow central canal is the oxygenate expansion chamber of expansion shape, be with an overflow cover in the outside of blood flow central canal lower end, the serpentine coil that the heat exchanger in the oxygenation chamber is made for the multiple thread corrugated tube.