Ventilation study system

Details Ventilation study system Ventilation study system

Filed on

1973-08-15

Date issued

1976-05-18

Examiner

Howell, Kyle L.

Patent Class

Surgery

SubClass

Truss

SubSubClass

Perineal

Other Related Categories

128 2A, 128 208, 128184, 128202, 250506, 251292, A61B 600

Type

Patent

Status

active

Patent number

039570339

Description

ABSTRACT:
A disposable ventilation study system for dispensing a single-patient dosage of gaseous radioisotopes to patients for pulmonary function studies is disclosed. A gas impermeable capsule encloses the gaseous radioisotope and is stored within a radioactivity shielding body of valve means which shears the capsule to dispense the radioisotope to the patient. A breathing bag receives the patient's exhalation of the radioisotope and permits rebreathing of the radioisotope by the patient.

REFERENCES:
patent: 662658 (1900-11-01), Sterne
patent: 818123 (1906-04-01), Rousseau
patent: 827910 (1906-08-01), Hollenberger
patent: 1830453 (1931-11-01), Wassmer
patent: 3088456 (1963-05-01), Stanton
patent: 3369121 (1968-02-01), Bruno et al.
patent: 3409776 (1968-11-01), Pipher et al.
patent: 3438365 (1969-04-01), Packer et al.
patent: 3666955 (1972-05-01), Suprenant et al.
patent: 3695254 (1972-10-01), Blum
patent: 3769967 (1973-11-01), Jones et al.

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