초록 ▼

A surgical system wherein a two component hand-held probe is provided. The probe includes a sterilizable and reusable detector portion formed principally of metal in combination with a disposable handle and cable combination. Formed principally of metal components, the detector assembly includes a c

A surgical system wherein a two component hand-held probe is provided. The probe includes a sterilizable and reusable detector portion formed principally of metal in combination with a disposable handle and cable combination. Formed principally of metal components, the detector assembly includes a crystal receiver within which a detector crystal is retained in compression by an annular metal ring assembly having thin inwardly depending tines which contact the crystal forward surface and additionally apply the electrical ground thereto. An access channel rigidly supports bias and signal carrying electrical leads through a crystal mount to a rearward face thereof. The rearward face rigidly supports the forward stage of a preamplifier. In one embodiment a rigid polymeric crystal mount is employed. Particularly for this embodiment, a cup-shaped, shield containing window assembly is utilized.

대표청구항 ▼

[What is claimed is:] [1.]a handle component extending from a rearward end to a forward end, having a handle wall surmounting an interior handle cavity,a detector forward support extending forwardly from said handle component forward end to a forward region with a forwardly facing tip, having a supp

[What is claimed is:] [1.]a handle component extending from a rearward end to a forward end, having a handle wall surmounting an interior handle cavity,a detector forward support extending forwardly from said handle component forward end to a forward region with a forwardly facing tip, having a support wall surmounting a support internal cavity and having an externally disposed support connection region at said forward region;a crystal mount, formed of material attenuating said radiation, having a mount rear portion with a rear surface mounted within said support internal cavity and extending forwardly from said tip with a cylindrical outer mount surface of first diametric extent to a forwardly opening mount cavity with an interior bottom surface and interior side surface extending forwardly to a mount cavity edge, said mount having an access channel extending from said interior bottom surface to said rear surface;a rigid, polymeric electrically insulative crystal receiver mounted within said mount cavity and having a forwardly opening crystal receiving cavity with an interior bottom surface and an interior sidewall surface extending toward said mount cavity edge;a bias conveying and signal receiving lead assembly extending from said crystal receiving cavity interior bottom surface through said access channel and into said support internal cavity;a crystal detector mounted in closely nesting relationship within said crystal receiving cavity, having a rearward face in abutting direct engagement with said lead assembly at said receiving cavity interior bottom surface, said crystal detector extending to a forward face adjacent said mount cavity edge and being responsive to radiation impinging upon said forward face to provide a detector output;a cup-shaped window assembly including a side portion having an open cylindrical interior surface, having a forward portion of second diametric extent greater than said first diametric extent to define a side gap with said crystal mount, an internally disposed connection region located rearwardly therefrom and said side portion having a side portion length extending between a rear edge and a forward end, said forward end extending a forward gap defining distance forwardly from said mount cavity edge when said connection region is connected with said support connection region, and a window, formed of radiation transmissive material extending over said forward end to define said forward gap;a treatment circuit located within said handle cavity for applying a bias to said crystal detector rearward face through said lead assembly and coupling electrical ground to said crystal mount, and responsive to said detector output to provide output signals corresponding therewith; anda retainer and grounding assembly mounted upon said crystal mount and over said mount cavity edge, abuttably and compressibly retaining said crystal detector against said lead assembly at said receiving cavity bottom surface and abuttably coupling electrical ground from said crystal mount to said crystal detector forward face.