Ventilation study system
US3957033A · kind A · utility
10Cited by
11References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 15, 1973 |
| Grant date | May 18, 1976 |
| Priority date | — |
| Expiry date | Aug 15, 1993 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/075
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.