NEEDLE CAP Russian patent published in 2017 - IPC A61M25/06 A61M5/158 A61M5/32 

FIELD: medicine.

SUBSTANCE: inventions relate to a needle cap for use in a medical device to close the medical device needle tip after medical device application, to prevent accidental pricking, for example, of a medical practitioner with the needle tip after needle removal from the medical device, and also to a catheter device containing such a cap. The needle cap (26) for use in the medical device comprises a main body (44), the first and second arms (46, 48) and a stop member (38). The main body (44) is made of the first material and comprises a needle passage (56) extending axially from the proximal side (58) of the body (44) through the body (44) to the distal side (60) of the body (44) for movable accommodation of a needle bar (28) having a large outer profile. The first and second arms (46, 48) extend substantially in the said axial direction (A) from the distal side (60) of the main body (44). The first arm (46) comprises a distal region (62), a proximal region (64) and a distal wall (50) located transversely at the distal area (62) of the first arm (46). The stop member (38) is slidably arranged on the needle bar (28) and is movable relative to the main body (44). The stop member (38) is located in a receptacle (88) formed by a recess or cavity, or chamber in the body portion (44), the axial dimension of the receptacle (88) being greater than the length of the stop member (38), so that the stop member (38) can freely move along the needle bar (28) inside the receptacle (88). The catheter device (40) comprises a catheter tube (14); a cannula (12) catheter; a needle (20) and the above-mentioned needle cap (26). The needle (20) comprises a needle tip (30) and a needle bar (28). The needle bar (28) comprises a distal section (34) and a proximal section (36). At least the proximal section (36) has a large external profile. The needle bar (28) comprises a thickening (32) between the distal section (34) and the proximal section (36). The thickening (32) has an enlarged external profile that is larger than the maximum profile size of the needle channel (56) and/or the stop member (38).

EFFECT: invention discloses a cap with improved protective function.

12 cl, 4 dwg