Abstract: An obturator for a trocar having a shaft, pin, and removable knife. The pin mounts to the shaft and secures the knife thereto.

Abstract: An apparatus for dispensing a soft-serve frozen product includes a housing having first and second compartments. A door mounts on the housing in a position over the first compartment. The second compartment houses a refrigeration unit for cooling the first compartment. A sleeve and a block disposed within the first compartment support a soft-serve frozen product container. The soft serve frozen product container includes a body with a head attached at one end. A dispensing system compresses the soft-serve frozen product container to extrude product therefrom. An extendable and retractable tape mounted within the sleeve separates the soft-serve frozen product container from the dispensing system to prevent entanglement of the soft-serve frozen product container with the dispensing system. A lever mounted on the door opens the soft-serve frozen product container, while a switch coupled to the lever activates the dispensing system.

Abstract: A safety shielded, reusable trocar consisting of a trocar cannula subassembly, a safety shield control mechanism, and a separate obturator subassembly. The trocar cannula subassembly includes an outer cannula attached to a main housing having a central bore in which a spring biased, inner cannula is slidably and removably inserted, and an upper housing, removably secured to the main housing, having a central bore which is aligned longitudinally with the bore of the main housing and in which sealing means is removably secured. The obturator subassembly includes an elongated obturator having a replaceable and rotatable knife, an elongated shaft, an arcuate shaped cap, and which extends through the upper housing, sealing means, main housing, inner cannula, and outer cannula.