Christopher M Ross

US Patent:

7306585, Dec 11, 2007

Filed:

Sep 30, 2004

Appl. No.:

10/955275

Inventors:

Christopher Daniel Ross - Davie FL, US

Assignee:

Engineering Resources Group, Inc. - Davie FL

International Classification:

A61M 25/00

US Classification:

604523, 604527

Abstract:

A guide catheter includes a hollow elongate shaft defining a channel. The hollow elongate shaft (or a segment thereof) includes an inner tube and a multilayer sheath formed around the inner tube. The multilayer sheath includes an intermediate layer derived from a melt-processible first polyether-block amide material (e. g. , PEBAX) and an outer layer derived from a different second polyether-block amide (e. g. a cross-linked polyether-block amide material). Reinforcing material (such as a braid of reinforcing filament) may be part of the multilayer sheath. The second polyether-block amide layer of the outer layer provides a shrink tube with a shrink temperature range greater than melt temperature range of the first polyether-block amide material of the intermediate layer. The hollow elongate shaft is formed by heating the intermediate and outer layers at a temperature within the shrink temperature range such that the outer shrink tube layer shrinks and the intermediate layer melts to thereby bond the multilayer sheath to the inner tube.

US Patent:

7674421, Mar 9, 2010

Filed:

Dec 11, 2007

Appl. No.:

11/954066

Inventors:

Christopher Daniel Ross - Davie FL, US

Assignee:

Engineering Resources Group, Inc. - Davie FL

International Classification:

B29B 17/00
B32B 37/00
A61M 25/00

US Classification:

264342R, 156 84, 156 85, 156 86, 26417127, 26417128, 26417314, 26417319, 2642101, 2642102, 264248, 2642711, 264294, 264320, 604523, 604527

Abstract:

A guide catheter shaft is formed from an inner tube structure and a multilayer sheath around the inner tube structure. The multilayer sheath includes an intermediate sheath and a shrink tube layer. The intermediate sheath is disposed around the inner tube and realized from a melt-processible first polyether-block amide material. The shrink tube layer is disposed around the intermediate sheath and realized from a different second polyether-block amide (e. g. a cross-linked polyether-block amide material) having a shrink temperature range greater than a melt temperature range of the first polyether-block amide material. The resulting structure is heated at a temperature within the shrink temperature range such that the outer shrink tube layer shrinks and the intermediate layer melts to thereby bond the multilayer sheath to the inner tube.

US Patent:

8512291, Aug 20, 2013

Filed:

Sep 16, 2009

Appl. No.:

12/561191

Inventors:

Christopher D. Ross - Davie FL, US

Assignee:

Engineering Resources Group, Inc. - Davie FL

International Classification:

A61M 5/178
A61M 25/00
A61M 5/32

US Classification:

60416401, 604264, 604268, 604272, 60416413, 60417001, 60417002

Abstract:

An anti-clogging catheter includes a tubular cannula defining a fluid passageway and shaped and tipped to removably insert within and be removed from a human body, where the cannula has a proximal end with a first interior surface defining a first interior diameter and a distal end with a second interior surface defining a second interior diameter that is smaller than the first interior diameter. A stylet is movable within the fluid passageway between the proximal end and the distal end and has an outer diameter substantially equal to the second interior diameter.

US Patent:

20100100071, Apr 22, 2010

Filed:

Sep 16, 2009

Appl. No.:

12/561209

Inventors:

CHRISTOPHER D. ROSS - Davie FL, US

Assignee:

Engineering Resources Group, Inc. - Hialeah FL

International Classification:

A61M 5/168

US Classification:

604508, 604 67

Abstract:

A system for controlling an infusion of fluid into living tissue includes a catheter shaped to be introduced within living tissue and operable to deliver a fluid to a location within the living tissue, a fluid infusion pump mechanically coupled to the catheter and operable to pump fluid through the catheter and, thereby, into the location, the fluid infusion pump having at least two fluid pumping states, a fluid pressure monitor fluidically coupled to the catheter and operable to measure a pressure of the fluid within the catheter, and a processor communicatively coupled to the fluid infusion pump and the fluid pressure monitor, the processor operable to select between the at least two fluid pumping states based upon the measured pressure of the fluid within the catheter.

US Patent:

20130303998, Nov 14, 2013

Filed:

Jul 23, 2013

Appl. No.:

13/948593

Inventors:

Christopher D. Ross - Pembroke Pines FL, US

International Classification:

A61M 25/00

US Classification:

604268

Abstract:

An anti-clogging catheter includes a hollow cannula defining a first interior diameter and a distal end defining a second interior diameter smaller than the first interior diameter. A solid stylet is movable within the fluid passageway and has an outer diameter substantially equal to the second interior diameter of the cannula, the stylet and cannula together defining (1) a closed fluid pathway that prevents neurological material from passing into the distal end of the cannula when the distal end of the stylet is extended into the distal end of the cannula and (2) an open fluid pathway that allows fluid to flow in a single contiguous path around the distal end of the stylet and out of the distal end of the cannula when the distal end of the stylet is retracted away from the distal end of the cannula and remains within the body of the cannula.

US Patent:

20210379784, Dec 9, 2021

Filed:

Jun 3, 2021

Appl. No.:

17/338140

Inventors:

- Pembroke Pines FL, US
Christopher Ross - Davie FL, US

International Classification:

B26D 3/16
B26D 7/02
B65H 49/00

Abstract:

A system for cutting medical tubing sourced from a spool of tubing uses two actuator groups that each reciprocate along a respective track, which are parallel to each other. Each actuator group has a clamp and a cutting tool which have an operative position along a common axis. The tubing is fed along the common axis to be operated on by the actuator groups. A forward actuator group clamps onto the tubing and is then moved along its track, pulling the tubing. A rearward actuator group then clamps onto the tubing and cuts the tubing. While still clamped onto the tubing, the rearward actuator group is moved forward, pulling more tubing, and the actuator group that was forward is moved to the rearward position and the process is repeated iteratively to produce tubing sections cut to the desired length. The tubing is pressurized and kept under pressure to straighten the tubing.

US Patent:

20140378997, Dec 25, 2014

Filed:

Jun 23, 2014

Appl. No.:

14/312322

Inventors:

Christopher Daniel Ross - Davie FL, US

International Classification:

A61B 19/00

US Classification:

606130

Abstract:

A surgical trajectory alignment device is disclosed, including an alignment trajectory guide holding portion shaped to receive and secure an alignment trajectory guide along a longitudinal patient entry axis, the longitudinal patient entry axis falling within a plane. The surgical trajectory alignment device further includes a first alignment trajectory guide holding portion activator operable to rotate an alignment trajectory guide secured by an alignment arm holding portion within the plane; and a second alignment trajectory guide holding portion activator operable to translate an alignment trajectory guide secured by the alignment arm holding portion in a direction away from the plane.