Medical device
OwnerYoshinori Ohachiinventor
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Abstract
A radiation sterilized medical device made of a resin compound comprising 100 parts by weight of vinyl chloride resin, 0.001 to 5 parts by weight of at least one metal oxide selected from the group consisting of magnesium oxide, calcium oxide, and zinc oxide and 5 to 200 parts by weight of a dialkyl phthalate of the formula ##STR1## wherein m and n are each an integer of the value of substantially 6 to 12 and the average of m an n, (m+n)/2, is not more than 11.5. The invention also provides the method of preparing said medical device and the specified resin.
Claims21
A radiation sterilized medical device made of a resin compound comprising 100 parts by weight of vinyl chloride resin, 0.001 to 5 parts by weight of at least one metal oxide selected from the group consisting of magnesium oxide, calcium oxide, and zinc oxide and 5 to 200 parts by weight of a dialkyl phthalate of the formula ##STR6## wherein m and n are each an integer of the value of substantially 6 to 12 and the average of m and n, (m+n)/2, is not more than 11.5.
A process for preparing a radiation sterilized medical device which comprises molding a resin compound to form a medical device comprising 100 parts by weight of vinyl chloride resin, 0.001 to 5 parts by weight of at least one metal oxide selected from the group consisting of magnesium oxide, calcium oxide, and zinc oxide and 5 to 200 parts by weight of a dialkyl phthalate of the formula ##STR7## wherein m and n are each an integer of the value of substantially 6 to 12 and the average of m and n, (m+n)/2, is not more than 11.5;
- and sterilizing said molded device by radiation.
Dependencies are inferred from the claim text.