JP2008079695A5 - - Google Patents

Claims (7)

A water supply pipe inserted into a liquid medicine supply bottle filled with liquid medicine is connected to a nozzle attached to a nozzle mounting portion, and water is discharged from the nozzle to a liquid medicine bottle provided to a patient. A holding mechanism for the nozzle in a medicine supply device,
Attached to the nozzle attachment portion and rotatable around the support shaft so as to be rotatable in parallel with the nozzle attachment surface of the nozzle attachment portion. On the other hand, a holding body having a fitting portion that is fitted from the side is provided, and the holding body rotates in one direction around the support shaft from the side with respect to the fitting portion of the nozzle. It is possible to switch between the fitting posture in which the fitting portion is fitted and the releasing posture in which the fitting with the nozzle is released by rotating in the other direction around the support shaft, and holding the holding posture of the holding body. The nozzle holding mechanism in the liquid medicine supply device characterized by having a means.   The held part of the nozzle is formed in a cylindrical shape, and a discharge port part is formed on one side of the held part in the axial direction to penetrate the nozzle mounting part and discharge the liquid medicine to the liquid medicine bottle. An inlet port to which the liquid medicine supply pipe is connected is formed on the other side of the direction, the nozzle is detachably attached to the nozzle mounting part, and the shaft center of the support shaft is passed through the discharge port part through the nozzle mounting part. The nozzle holding mechanism in the liquid medicine supply device according to claim 1, wherein the axis of the held portion is parallel to the axis of the held portion.   A one-side flange that protrudes radially outward is integrally provided at the boundary between the held portion of the nozzle and the discharge port portion, and the one-side avoidance recess that avoids the one-side flange in the fitting portion The nozzle holding mechanism in the liquid medicine supply device according to claim 2, wherein a first side holding surface is provided that overlaps with the flange surface of the one side bottle in the axial direction.   The other side flange that protrudes radially outward is integrally provided at the boundary portion between the held portion of the nozzle and the introduction port portion, and the other side avoidance recess that avoids the other side flange is provided in the fitting portion. The nozzle holding mechanism in the liquid medicine supply device according to claim 3, wherein the other side holding surface is provided so as to overlap the flange surface of the other side bottle in the axial direction.   The nozzle holding mechanism in the liquid medicine supply device according to any one of claims 1 to 4, wherein the fitting portion has a holding recess that is fitted to a fitting portion of the nozzle.   The holding means includes a fitting provided on the holding body and detachable from a recess formed on the nozzle mounting surface, and a spring that biases the fitting toward the nozzle mounting surface. The fitting is in contact with the nozzle mounting surface by the elastic force of the spring in the fitting posture of the holding body, and the recess is set at a position where the fitting tool is fitted in the fitting posture of the holding body. The nozzle holding mechanism in the liquid medicine supply device according to any one of claims 1 to 5.   The nozzle holding mechanism in the liquid medicine supply device according to claim 6, wherein the fitting tool is formed in a spherical shape.