Abstract: A steerable catheter suitable for left-hand operation includes a tube, a handle assembly, and a Luer connector. The handle assembly comprises a holding handle, a slide mechanism, and a slide control mechanism; a proximal end of the tube passes through a cavity of the holding handle to be connected with the Luer connector; the slide mechanism comprises a slide base body, and a slide member axially sliding along the holding handle and fitted on the slide base body; the slide member is fixedly connected to a pull wire; the slide control mechanism comprises a connecting member connected with the slide member, and a drive adjustment member connected with the connecting member and adjusting the position of the slide member; the drive adjustment member is provided at the proximal end of the holding handle for convenient left hand operation.

Abstract: A steerable catheter suitable for left-hand operation includes a tube, a handle assembly, and a Luer connector. The handle assembly comprises a holding handle, a slide mechanism, and a slide control mechanism; a proximal end of the tube passes through a cavity of the holding handle to be connected with the Luer connector; the slide mechanism comprises a slide base body, and a slide member axially sliding along the holding handle and fitted on the slide base body; the slide member is fixedly connected to a pull wire; the slide control mechanism comprises a connecting member connected with the slide member, and a drive adjustment member connected with the connecting member and adjusting the position of the slide member; the drive adjustment member is provided at the proximal end of the holding handle for convenient left hand operation.

Abstract: A bendable catheter includes a tube body and a traction member. The tube body includes a bendable section arranged at a distal end of the tube body. The traction member includes a traction wire, a threading tube, a protective casing, and a clamping tube. The traction wire has a distal end connected to the bendable section, a proximal end wrapped and fixed within the clamping tube, and a remainder which is sequentially moveably threaded in the threading tube and the protective casing in a direction from the distal end of the tube body to a proximal end of the tube body. A proximal end of the threading tube is relatively fixed with a distal end of the protective casing without a gap in axial directions of the threading tube and the protective casing, and a distal end of the clamping tube is movably threaded in the protective casing.

Abstract: A hemostatic valve, a sheath, and a catheter sheath assembly are provided. The hemostatic valve includes a valve body and a spool arranged in the valve body. The spool includes a spool main body and a cover body connected to a distal end of the spool main body. The spool main body defines an axial through hole therein. The cover body is operable to be opened or automatically closed relative to the spool main body to correspondingly deocclude or occlude the axial through hole. The hemostatic valve has an ideal sealing effect, can prevent blood leakage or air entering the human body, has high reliability, and is particularly suitable to be used with a dilator or other diagnostic and therapeutic device with a large diameter.

Abstract: An adjustable curved medical device includes a catheter, a handle, and a traction wire provided in the catheter. The distal end of the traction wire is connected to the distal end of the catheter. A retainer device is provided in the handle, and includes a rotating member and a body having a receiving groove for receiving the rotating member, and a guiding hole extending through the outer wall of the body to the receiving groove. A slot formed between the rotating member and the inner wall of the body is smaller than the diameter of the traction wire. The proximal end of the traction wire extends through the guiding hole and engages in the slot.

Abstract: Disclosed is an adjustable curved medical catheter, including a catheter (110), a handle (140), and a traction wine (122) provided in the catheter (110). The distal end of the traction wire (122) is connected to the elastic distal end of the catheter (110). The adjustable curved medical catheter further includes a retainer device (130) provided in the handle (140) and connected to the handle (140). The retainer device (130) includes a rotating member (132) and a body (131) having a receiving groove (131a) for receiving the rotating member (132) and a guiding hole (133) extending through the outer wall of the body (131) to the receiving groove (131a). A slot (134) formed between the rotating member (132) and the inner wall of the body (131) is smaller than the diameter of the traction wire (122). The proximal end of the traction wire (122) extends through the guiding hole (133) and engages in the slot (134).