Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1995-11-22
2000-09-12
McDermott, Corrine
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604 8, 604523, A61M 500
Patent
active
061171166
ABSTRACT:
The invention provides a probe set having at least one probe of a light wire which can be resiliently deflected to pass from the nasolacrimal duct to the nasal inferior meatus. The probe has an enlarged and rounded distal end portion to limit the possibility of damage to tissue when the probe is inserted. A very flexible tube of minimal rigidity is engaged over a proximal end of the probe and a heat shrunk sleeve is attached to join the tube to the probe. Preferably the sleeve has a main portion containing a first end portion containing part of the probe adjacent the tube, a second end portion containing a part of the tube adjacent said end of the probe, and a main portion containing the ends of the probe and the tube. The sleeve applies a compressive radial pressure to attach the tube to the probe and defines a transition portion between the first end portion and the main portion of the sleeve to minimise the possibility of snagging as the probe set is advanced into the lacrimal duct. The probe set preferably includes a second probe at the other end of the tube.
REFERENCES:
patent: 2154968 (1939-04-01), Alkio
patent: 3948272 (1976-04-01), Guibor
patent: 4305395 (1981-12-01), Martinez
patent: 4380239 (1983-04-01), Crawford et al.
patent: 4658816 (1987-04-01), Ector, Jr.
patent: 5195969 (1993-03-01), Wang et al.
patent: 5405329 (1995-04-01), Durand
patent: 5437625 (1995-08-01), Kurihashi
McDermott Corrine
Rodriguez Cris L.
Schmidt Ingrid E.
Walsh Medical Devices Inc.
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