Catheter Handle

Abstract

A catheter handle provided with a main handle body (10), a rotation-operating section having a rotating plate (20) and a middle member (25), an adjustment pin (30), an adjustment knob (40), and an O-ring (50), wherein: the middle member (25) is disposed between a first rotating member (21) and a second rotating member (22) that configure the rotating plate (20) and is fixed with respect to the main handle body (10) so as not to be rotatable; guide grooves (251, 252) for extending a tube (70), which is inserted into the main handle body (10), along the central axis (Z) of the main handle body (10) and an outer circumferential wall (253) of the rotation-operating section are integrally formed in the middle member (25); and a through hole (35) through which the tube (70), which extends along the central axis (Z), can be inserted is formed in the adjustment pin (30). Using said catheter handle, long components such as lead wires, various kinds of tubes, etc. that are inserted into the interior from the leading end can be extended along the central axis in the longitudinal direction.

Description

technical field [0001] The present invention relates to a handle for a catheter, and more specifically, to a handle for a catheter that is attached to a proximal end side of a catheter shaft to constitute a catheter capable of deflecting a distal end. Background technique [0002] A medical catheter usually has a handle attached to the base end (proximal end) side of the catheter shaft. [0003] As the handle for the catheter, various handles have been proposed depending on the type of catheter. For example, it may be desired to bend or extend the distal end portion (distal end) of the catheter by manipulating the handle for the catheter. As such a mechanism for operating and deflecting the front end portion of the catheter on the grip side, it has been introduced that the proximal end of the operating wire is connected to a rotating plate rotatably installed with respect to the handle main body, and the rotating A mechanism that changes (deflects) the direction of the tip...

AI Technical Summary

Problems solved by technology

[0015] However, if the lead wire, which is a vertical member, is bent, there is a possibility of kink and disconnection.

[0016] In addition, for example, if the supply tube of physiological saline of the catheter equipped with the perfusion mechanism is greatly bent, there is a possibility of liquid leakage.

[0017] In addition, if the sheath tube (steerable sheath) of the sheath tube is bent, it becomes difficult to insert a catheter or the like at the bent portion of the sheath tube.

[0018] On the other hand, in the case where the elongated member that detours around the rotating plate (the elongated member that passes between the rotating plate and the handle member) comes into contact with the rotating plate, the rotating rotating plate will scrape the surface of the elongated member , so there may be abnormal noise during operation, or damage to elongated parts (especially wires)

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