Thomas A Pepin

US Patent:

20130103004, Apr 25, 2013

Filed:

Oct 16, 2012

Appl. No.:

13/653169

Inventors:

ALISON LEPORDO - METHUEN MA, US
NATHAN ZAMARRIPA - SUDBURY MA, US
KARLA WEAVER - FRAMINGHAM MA, US
THOMAS PEPIN - BILLERICA MA, US

Assignee:

BOSTON SCIENTIFIC SCIMED, INC. - MAPLE GROVE MN

International Classification:

A61M 27/00

US Classification:

604540

Abstract:

A drainage catheter, comprising an elongate body member, an elongate flexible member and a hub, the hub including a base and a collar, the base an internal passageway and a side lumen and an outer surface including an engagement element and a mating surface portion, and the collar including a side lumen extending from the inner surface to the outer surface and wherein the inner surface of the collar includes a mating surface portion and a counter element, wherein the elongate flexible member extends through the side lumen side lumens, and wherein the hub has an unlocked position where the engagement element and the counter element are not engaged and a locked position where the engagement element and the counter element are engaged, the collar is tightened on the base and the elongate flexible element is clamped between the mating surface portions of the base and the collar.

US Patent:

20130000980, Jan 3, 2013

Filed:

Jun 28, 2011

Appl. No.:

13/170273

Inventors:

Benjamin Paul Dolgin - Newington VA, US
William G. Suliga - Manassas VA, US
Thomas G. Pepin - Warrenton VA, US
John T. Ishibashi - Burke VA, US
Michael A. Toreno - Herdon VA, US
James A. Nalasco - Fairfax VA, US

Assignee:

RAYTHEON COMPANY - Waltham MA

International Classification:

E21B 47/02

US Classification:

175 45

Abstract:

Disclosed is a system and method for horizontal directional drilling (HDD). The system and method utilize predictive algorithms to both characterize the soil within the borehole and to quantify instability within the drillstring. The soil characteristics are represented by a soil coefficient (α), which relates the curvature of the borehole with the length of thrust of the drill rig as well as by comparison of thrust while thrusting with torque while drilling. The value of (α) is obtained by comparison of the historical orientation of the drilling head over the length of the borehole and the borehole shape as determined by an arbitrary navigation sensor. Drillstring instability is determined as a function of historical thrust and torque efficiencies and windup over the length of the borehole.