Patent ID: 8834459
Filing Date: 2014-09-16
Classification: A61B

Abstract:
1. A needle for treating diseases, comprising a hollow needle element having a hollow interior; a cooling device constructed to supply a cooling medium into the hollow interior and cool the hollow needle element to freeze an unhealthy inclusion when said hollow needle element is filled with the cooling medium and is introduced into the unhealthy inclusion, said cooling device including a fluid pathway communicating with the hollow interior for supplying the cooling medium into the hollow interior and withdrawing the cooling medium from the interior, said fluid pathway constructed as a recirculating fluid pathway including a supply pipe portion for introducing the cooling medium into the hollow interior and a withdraw pipe for withdrawing the cooling medium from the hollow interior, wherein the supply pipe and the withdraw pipe are spaced apart; a heating device inserted into the hollow interior between said supply pipe and said withdraw pipe, in contact with the hollow needle element and constructed to heat the hollow needle element and thereby to heat the unhealthy inclusion to dislodge the unhealthy inclusion; and a withdrawing device constructed to withdraw the unhealthy inclusion from an area it was frozen by the cooling device and dislodged by the heating device and including a withdrawing passage provided on a periphery of the hollow needle element within the hollow interior.