Waterproofed laryngoscope handle

In a laryngoscope handle having a hollow, elongated hand gripping portion designed to contain an electrical power supply within its interior and a blade connecting head portion having (i) a lower end disengagably connected to one end of said hand gripping portion, (ii) an upper end designed to receive a laryngoscope blade, and (iii) a passageway between said upper and lower ends for accommodating a light source assembly including a light source, the improvement comprising:

• (a) an arrangement for sealing the entire lower end of said blade connecting head portion including said passageway so as to prevent any water entering the passageway at the upper end of the head portion from reaching the power supply containing interior of said hand gripping portion, said sealing arrangement including means for electrically connecting said light source assembly in circuit with said power supply in a way which causes the latter to energize said light source when said laryngoscope blade is mounted on said head position in a predetermined way, said blade connecting head portion including a second passageway between its upper and lower ends for accommodating an electrical contact, said sealing arrangement including means for electrically connecting said electrical contact in circuit with said power supply, said sealing arrangement including a printed circuit board extending across the entire extent of head portion's lower end for electrically connecting said light source and said contact in circuit with said power supply, said blade connecting head portion including a third passageway between its upper and lower ends for accommodating a second electrical contact and where said printed circuit board is configured to electrically connect said second contact in circuit with said power supply, said printed circuit board including at least one dielectric substrate having an underside confronting the interior of said hand gripping portion and at least one electrically conductive lead printed on said underside.