Patent ID: 7748396
Filing Date: 2010-07-06
Classification: A61H

Abstract:
1. An anti-slip crutch tip apparatus comprising: a tip body, having a first end and an opposing second end, wherein the first end of the tip body includes a crutch leg opening extending axially within a generally frustoconical section of the tip body, the crutch leg opening configured to receive a portion of a crutch leg, and wherein the second end of the tip body includes a recess and a circumferential contact surface portion located at the extent of a generally cylindrical section of the tip body; tread structures, formed within the recess of the second end of the tip body, the tread structures including at least one ridge and at least one channel; and at least one vent opening, the at least one vent opening located on a side wall of the generally cylindrical section of the tip body and spaced above the circumferential contact surface portion such that the at least one vent opening is completely surrounded by material comprising the side wall, the at least one vent opening extending into the generally cylindrical section of the tip body; wherein the at least one vent opening is in physical communication with a portion of the at least one channel, so that an unbroken fissure in the tip body resides as a structural breach extending between the generally cylindrical section side-wall entrance of the at least one vent opening and the physically communicative association of the at least one opening with the portion of the at least one channel, and wherein the at least one vent opening is large enough to prevent any significant change of pressure from occurring within the recess when the crutch tip is firmly pressed against a contact surface.