2results about How to "Reduce passability" patented technology

A balloon catheter includes a catheter shaft (2), a balloon (3), and a protruding portion (4A). The balloon (3) is connected to the catheter shaft (2). The balloon (3) includes an inflatable portion (3B) and a distal end connecting portion (3A). The protruding portion (4A, 4B) protrudes radially outward with respect to a center axis of the catheter shaft (2). The protruding portion (4A, 4B) has at least one of a first protruding portion (4A) provided on the distal end connecting portion (3A) of the balloon (3), or a second protruding portion (4B) provided on a distal end extending portion (220). The distal end connecting portion (3A) includes at least a region where a protrusion amount is smaller than a protrusion amount of the protruding portion (4A, 4B).

The invention discloses an intrauterine device fixing device and belongs to the field of medical instruments, the intrauterine device fixing device comprises a transverse rod and a longitudinal rod, the transverse rod is transversely arranged at the top end of the longitudinal rod, the transverse rod and the longitudinal rod form a traditional T-shaped ring structure, and the technology is an existing mature technology and is not repeated; an adjusting mechanism is arranged in the longitudinal rod in a sliding mode, a protective sleeve is arranged at the intersection of the transverse rod and the longitudinal rod in a sleeving mode, and an installation auxiliary mechanism is arranged at the bottom of the longitudinal rod when the ring feeding operation is conducted. The defect that the contraceptive ring in the current market is poor in stability is effectively overcome.