Medical treating tool

• Main Authors: KATO TOMIHISA, KAMEI MINEKAZU, MATSUMOTO MUNECHIKA
• Format: Patent
• Language: English
• Published: 14.07.2005
• Edition: 7
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

In a medical treatment tool ( 1, 1 A, 1 B), a flexible linear wire forms a main linear wire portion ( 2 ) provided by a wire-stranded helical hollow tube ( 6 ) coated with an outer protective layer ( 8 ). An operational core elongation ( 4 ) is slidably inserted into the main linear wire portion ( 2 ) of the wire-stranded helical hollow tube ( 6 ). A front end of the main linear wire portion ( 2 ) is connected to a front end of the operational core elongation ( 4 ), and a rear end of the operational core elongation ( 4 ) is connected to a hand access portion ( 5 ) placed at a rear end of the main linear wire portion ( 2 ). A diametrically expandable portion ( 3 ) is formed at a distal end portion of the main linear wire portion ( 2 ) by exposing the wire-stranded helical hollow tube ( 6 ) outside from the outer protective layer ( 8 ). An outer surface of the wire-stranded helical hollow tube ( 6 ) of the diametrically expandable portion ( 3 ) is at least diametrically reduced, and the diametrically expandable portion ( 3 ) forms a basket-like configuration which is shiftable into a diametrically shrunken configuration due to a relative siliding displacement between the operational core elongation ( 4 ) and the main linear wire portion ( 2 ) so as to efficiently retrieve foreign matters within the human somatic cavity.