The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 1991
Filed:
Feb. 22, 1989
Matsumi Toya, Koushoku, JP;
Kabushiki Kaisha Tiyoda Seisakusho, Koushoku, JP;
Sakura Finetechnical Co., Ltd., Tokyo, JP;
Abstract
A device for dyeing tissues of living bodies for immune response observation comprises dyeing block on which are formed a plurality of adjoining base portion each having a flat upper surface. On one side of the base portion is formed a ridge, and on the other side of the base portion is formed a supporting surface which is slightly higher than the ridge. A slide glass having a tissue attached to one surface is placed above each of the base portion with the surface thereof facing the upper surface of the base portion, so as to bridge the ridge and the supporting surface in such a manner that a thin wedge-shaped gap is defined between the upper surface of the base and the undersurface of the slide glass. Dyeing liquid is dripped from above onto the upper surface of the base portion which is not covered by the slide glass. The dripped dyeing liquid spreads into the wedge-shaped gap by capillary action, whereby the tissue on the undersurface of the slide glass is dipped in the liquid and dyed. For cleaning the base portion and the slide glass after the dyeing operation, cleaning liquid is supplied on the base portion through a port formed therein. The waste liquid is exhausted through an exhaust port formed in the upper surface and an exhaust pipe connected to the exhaust port. Waste liquid channels are provided adjacent to the base portion.