Patent ID: 9597491
Date: 2017-03-21
CPC Classifications: A61B,A61M,Y10T

Claim:
1. A device for the sealing connection of a flexible pressure hose with a grip element of a surgical instrument or a connector of a surgical instrument, said device comprising: at least one sealing element that, in an assembled state, is interposed between the grip element and the flexible pressure hose in a connecting region so as to create a seal between the flexible pressure hose and a sealing element receptacle of the grip element; a support element being arranged in an end region of the flexible pressure hose such that the end region of the flexible pressure hose is stiffened and arranged as a stiff plug member that is plugged into the sealing element receptacle of the grip element and such that the sealing element is clamped, or can be clamped, between the support element and the stiff plug member on one side and the grip element on the other side, wherein the support element comprises a support bushing that has an outside diameter that is complementary to an inside diameter of the flexible pressure hose, wherein the outside diameter of the support bushing is slightly greater than the inside diameter of the flexible pressure hose so that the support element in the interior of the flexible pressure hose expands and stiffens said flexible pressure hose; and a crimp ring fixedly crimped around the stiff plug member and arranged between an abutment element of the grip element and the sealing element receptacle to prevent axial movement of the flexible pressure hose in the connecting region; wherein the flexible pressure hose is connected to a cryosurgical fluid supply; wherein said grip element is connected to a cryosurgical probe; wherein the connection between the flexible pressure hose and the grip element can withstand an operating pressure between about 40 bar and 65 bar; and wherein the connection is fluid-tight and gas-tight for sealing the connection within a surgical environment.