Endoscopic infusion needle having dual distal stops

Details Endoscopic infusion needle having dual distal stops Endoscopic infusion needle having dual distal stops

1997-01-08

1999-05-25

Stright, Jr., Ronald

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604164, 604264, A61M 5178

Patent

active

059065940

ABSTRACT:
An endoscopic infusion needle device includes a catheter within which an injection tube having a distal injection needle is slideably disposed. A proximal actuating handle is coupled to the proximal ends of the catheter and the injection tube, and a distal stopping structure is provided on distal portions of the catheter and the injection tube. In one embodiment, the stopping structures include a rigid elongate skeletal structure occupying a portion of the annular space between the tube and the catheter, and an annular band on the tube which resides within the skeletal structure. The skeletal structure fits tightly within the cannula, allows irrigation fluid to pass through the annular space between the tube and the catheter to exit the distal end of the catheter, prevents the annular band from escaping through the proximal end or the distal end of the skeletal structure, and maintains the tube in substantial axial alignment with the catheter. The annular band is located such that when the tube is moved proximally, the distal end of the injection needle is safely housed within the skeletal structure when the annular band is stopped by the skeletal structure; and, when the tube is moved distally, the distal end of the needle extends approximately 4-6 mm beyond the distal end of the skeletal structure when the annular band is stopped by the skeletal structure.

REFERENCES:
patent: 3530785 (1970-09-01), Peters et al.
patent: 3774604 (1973-11-01), Danielson
patent: 4373526 (1983-02-01), Kling
patent: 4627841 (1986-12-01), Dorr
patent: 4988339 (1991-01-01), Vadher
patent: 5141496 (1992-08-01), Dalto et al.
patent: 5330501 (1994-07-01), Tovey et al.
patent: 5352206 (1994-10-01), Cushieri et al.
patent: 5356389 (1994-10-01), Willing
patent: 5425718 (1995-06-01), Tay et al.
patent: 5520654 (1996-05-01), Wahlberg
patent: 5669885 (1997-09-01), Smith
patent: 5672158 (1997-09-01), Okada et al.
Directions for use for Injection Gold Probe.TM. Bipolar Hemostasis Catheter by Microvasive.RTM., Boston Scientific Corporation, Oct. 1994.

Affiliated with

Also associated with

Rating

Endoscopic infusion needle having dual distal stops does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Endoscopic infusion needle having dual distal stops, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Endoscopic infusion needle having dual distal stops will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-399004