Surgical extractor

Abstract

Abstract 1,002,076. Removing gall stones. J. A. GLASSMAN. Oct. 24,1963 [June 25, 1963], No. 41996/63. Heading A5R. A device for removing obstructions in the common bile duct comprises at least one obstruction-entrapping element connected between the inner ends of two elongate flexible members, each element being formed by strips or strands secured together at two longitudinally spaced apart positions and normally spaced from one another intermediate said positions, the element being expanded or contracted by the application of force to the outer ends of the members. A silver or copper flexible probe 17 having at one end a blunt tip 21 is introduced into the common bile duct through an upper incision 14 and emerges from a lower incision 15 in the duodenum, both ends of the probe then projecting through the incisions. Stone-extracting devices are made of co-extensive spring wire strands which are bowed outwardly and secured together at intervals by clamp beads 26 to provide one or a series of cages 28. The ends of the strands may be braided together and are secured to connectors 19, 24, by one of which the device is attached to the probe 17 in place of the blunt tip 21. A trailing lead may be secured to the end of the device remote from the probe. Handles 18 and 30 (not shown) may be secured to the free ends of the probe and the trailing lead or to connectors at the ends of the stone-extracting device, when it has been pulled by retracting the probe into the bile duct with its ends projecting through the incisions. The cages are collapsed b> stretching, expanded, rotated and pulled in either direction to entrap the gall stones. An alternative stone-extracting device comprises a rubber or nylon tube or rod 34 in which cages 35, comprising circumferentially spaced strips 36, are formed at intervals and has connectors by which it is connected between the probe and the trailing lead. Several stone-extracting devices comprising cages and bristles may be connected end to end for manipulation in the common bile duct.

Inventors

No inventors recorded.

Bibliographic Details