Device for the fluid-conveying connection of at least one application probe with a supply tubing set, and handle for a surgical instrument

A handle for a cryoablation instrument, said handle comprising:

• a grip element;
• a supply tubing set with two parallel-extending flexible supply tubes;
• and
• a device for a fluid-conveying connection of at least one application probe having at least two coaxially extending application line elements and a receptacle molded part with the supply tubing set, said device comprising:
• a fluid-diverting element configured as a stand-alone, one-piece cylindrical element or an elongated volume body and arranged in the grip element of the handle, the fluid diverting element having a distal end, and proximal end an intermediate portion between the distal and proximal ends, and comprising:
• in the proximal end, a supply tube connecting region comprising at least two supply tube connecting elements configured as parallel-extending voids in the proximal end of the fluid-diverting element, each of the at least two supply tube connecting elements configured to receive a distal portion of the two parallel-extending flexible supply tubes;
• in the distal end, a radially central positioned, with respect to the grip element, application line connecting region forming a seat to releasably receive and connect the at least two coaxially extending application line elements of the at least one application probe;
• and
• in the intermediate portion, at least two transfer line elements configured as voids in the fluid-diverting element and through which the application line connecting region is in fluid communication with the supply tube connecting region such that at least one of the two supply tube connecting elements are positioned radially offset from the corresponding one of the at least two transfer line elements,
• wherein the two parallel-extending supply line tubes extend into the proximal end of the fluid-diverting element when connected to the supply tube connecting region,
• wherein each of the at least two transfer line elements and the at least two supply tube connecting elements are positioned apart from, in a coaxial direction, a radial center of the fluid-diverting element,
• wherein the application line connecting region is adapted to receive the receptacle molded part such that the at least one application probe can be fastened to the fluid diverting element, and
• wherein the two parallel-extending supply line tubes are positioned coaxially apart from the corresponding at least two coaxially extending application line elements.