HOUSING OF PROTECTIVE DEVICE Russian patent published in 2016 - IPC A61M25/06 A61M5/32 A61M5/158 

FIELD: medical equipment.

SUBSTANCE: invention relates to medical equipment, specifically to a needle protection device, which helps to prevent accidental contact of medical worker or any other person with sharp needle tip after use of a disposable medical device. Needle protective device comprises a needle and a needle protective cover. Needle is attached to needle sleeve, which is substantially made in form of a rectangular parallelepiped and to displace relative to protective cover between a position of use, in which at least needle tip is out of protective cover, and a retracted position, wherein needle is completely inside protective cover. Needle protective device further comprises locking mechanism to secure needle sleeve inside protective cover, when needle sleeve is in retracted position. Locking mechanism comprises at least one pair of first and second locking means engaging with each other when needle sleeve is in a retracted position. First locking means are provided on needle sleeve, and second locking means are provided on protective cover. Second locking means comprise locking tab extending in direction of near end of protective cover and are configured to engage with first locking means, when needle sleeve is in a retracted position. Locking tab has elastic properties and passes in direction of inner part of protective cover so that it is pushed outside needle sleeve as far as needle sleeve moves in direction of its retracted position, and is latched behind first locking means or needle sleeve, when needle sleeve is in retracted position. Needle sleeve has slightly concave surfaces on its opposite sides.

EFFECT: invention allows to not only improve holding capacity of needle sleeve, but also reduces pulling force applied to tube during movement of device of position of use to retracted position.

11 cl, 20 dwg