CATHETER DEVICE Russian patent published in 2014 - IPC A61M25/06 A61M5/32 

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, namely to catheter devices, particularly used for facilitating the insertion and installation of a catheter or other medical device into a patient's vein (vessel). The catheter device comprises a catheter, a catheter sleeve, a needle, a needle sleeve and a needle cap. The catheter sleeve has an outer surface and an inner surface, a distal portion and a proximal portion. The distal portion is connected to the catheter. The proximal portion encloses a chamber. The needle passes through the catheter sleeve and the catheter and senses the axial direction. The needle has opposite proximal and distal ends. The distal end forms a needle tip. The needle sleeve is connected to the proximal end of the needle. The needle cap is attached to the needle and configured to slide thereon. The needle cap is retained in the chamber of the catheter sleeve by a holding arm catching the outer portion of the catheter sleeve, as the needle passes through the catheter sleeve and catheter. The needle tip is removed from the catheter sleeve, after the needle tip penetrates into the needle cap after the needle is removed from the catheter. The holding arm extends other than in parallel to the axial direction, and particularly forms an angle falling within the range of 0° to 10° with the axial direction, particularly such that a clearance between the arm and the catheter sleeve tapers off towards a distal end of the holding arm.

EFFECT: invention is characterised by the low production cost and at the same time affords a reliable protection against stabbing by the needle after removed from the catheter and the catheter sleeve.

21 cl, 6 dwg