Gas-exchange sheet members

Details Gas-exchange sheet members Gas-exchange sheet members

1980-07-03

1982-08-03

Spear, Jr., Frank A.

Chemical apparatus and process disinfecting, deodorizing, preser

Blood treating device for transfusible blood

Oxygenator

55158, 2103214, B01D 3100

Patent

active

043427235

ABSTRACT:
A sheet member of silicone rubber suitable for use in gas-exchange such as oxygenation and decarbonation of blood in an oxygenator of a mechanical heart and lung is proposed.
The sheet member of the invention is provided with a plurality of capillary pores extending in parallel and each opening at both ends thereof. The oxygenator is constructed with a plurality of the inventive sheet members arranged in parallel and air is passed through the spaces between the adjacent sheet members while blood is passed through the capillary pores in the sheet members.
The efficiency of the gas exchange by use of the above sheet members is further enhanced by providing the sheet member with capillary pores each having an undulating longitudinal cross section comprised of an alternating repetition of wider portions and narrower portions.

REFERENCES:
patent: 3228877 (1966-01-01), Mahon
patent: 3522885 (1970-08-01), Lavender et al.
patent: 3724673 (1973-04-01), Ryon
patent: 4176069 (1979-11-01), Metz et al.

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