Abstract: A therapeutic device (20) for the treatment of male sexual dysfunction which has first and second substantially rigid portions (21,23) interconnected by malleable or deformable portions (24). The device (20) is fitted to the base of the male penis and by selective deformation of the device (20), the first portion constricts blood flow through the penile veins to enable the user to achieve a penile erection; the second portion (23) constricts the urethra to prevent premature ejaculation; and the malleable or deformable portions (24) constrict blood flow through the penile arteries to overcome Priapism. The device (20) has a core (30) (e.g. of copper wire) within a deformable resilient sheath (33), with grooves or slots (27) which allow blood flow through the blood vessels under the skin of the penis when in use.

Abstract: An adaptor for drilling strings has a head, sleeve and mounting block assembly to secure a drill bit to a drilling string. By reverse rotation of the drilling string, the sleeve is movable between a first position, where pressurized air from the drilling string is directed to the drill bit, to a second position, where the air is directed to the drill hole above the adaptor to clear debris from the hole. Teeth at both ends of the drill assist the adaptor to clear the hole as the drill string is rotated and retracted from the hole.

Abstract: An adaptor for drilling strings has a head, sleeve and mounting block assembly to secure a drill bit to a drilling string. By reverse rotation of the drilling string, the sleeve is movable between a first position, where pressurized air from the drilling string is directed to the drill bit, to a second position, where the air is directed to the drill hole above the adaptor to clear debris from the hole. Teeth at both ends of the assist the adaptor to clear the hole as the drill drill string is rotated and retracted from the hole.