A hand-held direct digital image sensor device includes a connection handle having a grip portion, a bite portion, and a carrier portion provided with at least one male coupling unit； a soft protective cover provided with at least one female coupling unit for engaging with the male coupling unit； and a direct digital image sensor received in a receiving cavity defined in the protective cover. Through engagement of the male and female coupling units with one another, the soft protective cover and accordingly the direct digital image sensor received therein can be connected to an end of the connection handle and be extended into a patient's oral cavity without bringing too much discomfort to the patient. The used protective cover is discarded or disinfected to meet sanitary requirements in medical treatment.一種具護套的手持直接數位顯像感應裝置，包含一接合承柄，設有握持部、咬合部及承載部，且於承載部表面設有至少一公接合組件；上述公接合組件上組接一具有收容腔的護套，上述收容腔內容設一直接數位顯像感應器，並於上述護套外表面上設有與公接合組件對應的母接合組件。本發明利用嵌合式的接合組件，使護套可組接於接合承柄末端，再將直接數位顯像感應器套設於軟性材質的護套之中，以減緩病患將感應器含在口中的不舒適感，並可在使用過後直接拋棄護套或消毒護套，達到醫療衛生安全的目的。
