| 摘要 |
<p>An embryo transfer catheter or the like has electrical resistance heating elements (12 and 13) extending along its shaft (1) and connected to a battery (40) in the catheter hub (42) or to a separate power source (25) via a cable (3). Alternatively, the shaft (51) may be extruded with two channels (53 and 54) in its wall connected with inlet and outlet connectors (57 and 58) on the hub (56). Pipes (59 and 60) connected with the connectors (57 and 58) supply warmed fluid from a heat exchanger (61) to one channel (53) and return fluid to the exchanger from the other channel (54). <IMAGE></p> |
