Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1986-04-11
1987-05-26
Rosenbaum, C. Fred
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
12820315, 221 7, 116299, A61M 1300
Patent
active
046682180
ABSTRACT:
An indicating means in a dosage dispensing device for medicaments, particularly a dosage inhaler which indicates a number of dosages administered from the dosage dispensing device. The indicating means includes a rotatable disc (1) having apertures (2) passing therethrough which can be filled with a medicament in particle form. By rotating the disc the apertures can be brought into an air channel or duct (3) through which air is inhaled. The rotatable disc has associated with a central portion a spiral groove or ridge (4) which can engage with peripheral teeth (8) on a toothed wheel (6), such that rotation of the disc (1) results in rotation of the toothed wheel and the toothed wheel is provided with one or more markings (9) which are visible from outside the dosage inhaler upon rotating the disc a predetermined number of times.
REFERENCES:
patent: 508935 (1893-11-01), Gerry
patent: 786073 (1905-03-01), Walsh
patent: 1668617 (1928-05-01), Vermillian
patent: 3688945 (1972-09-01), Harman, Jr. et al.
patent: 4034757 (1977-07-01), Glover
patent: 4147166 (1979-04-01), Hansen
Aktiebolaget Draco
Rosenbaum C. Fred
Smith, Jr. Jerome R.
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