Martin R Jasso, 79402 Redway Ln, Houston, TX 77598

5217474, Jun 8, 1993

Jul 15, 1991

7/731109

Nadim M. Zacca - Houston TX
Martin R. Jasso - Queensbury NY

A61B 1732

606159

A device for removing obstructions from vessels or small openings in the body, comprising a rotatable ablator tip which is guided to the obstruction in a reduced diameter configuration, expanded and rotated to remove the obstruction, and contracted to remove the device from the body. The variably expandable abrasive tip coil in one embodiment of the invention is actuated by a piston means disposed within the coil. A pair of collars is attached to the ends of the coil, and the piston effects relative longitudinal axial movement of the collars and, hence, the respective ends of the coil tip. When the ends of the coil tip are so moved with respect to one another, expansion and contraction of the diameter of the coil tip results. In another embodiment of the invention, the expansion tip coil is actuated by an expandable and contractible bellows means disposed within the coil, instead of the piston means. In another embodiment of the invention, the expansion and contraction of the coil tip are effected by longitudinal axial movement of an internal coil attached to one end of the coil tip, within an outer coil attached to the other end of the coil tip.

4413636, Nov 8, 1983

Mar 25, 1982

6/361802

Martin R. Jasso - Houston TX

D61N 104

128786

An electrode assembly for a catheter having first and second conductors comprises an anode ring including an outer portion and an inner portion connected to the outer portion. The inner portion includes a solid member having a blind passage therein and a channel therethrough. One end of the first conductor is received in the blind passage and retained therein by a pair of crimps impressed into the solid member against the conductor end. The second conductor extends through the anode ring in the channel. Alternatively, the inner portion includes a post which is received in a passage in the end of the first conductor and is welded to the first conductor. The second conductor includes a lead portion and a tip portion spaced therefrom and the anode ring includes a feed-through tube extending therethrough and interconnecting the lead and tip portions of the second conductor. The outer anode ring portion includes a tubular part having a wall with an outer surface and an inner surface, and including an aperture extending through the wall from its outer surface to its inner surface. Some portions of such inner surfaces, or such inner and outer surfaces, are roughened.

5000736, Mar 19, 1991

Mar 22, 1990

7/497458

Harry Kaufhold - Houston TX
Martin Jasso - Houston TX
Gerald E. Kruckeberg - Cypress TX

A61M 500

604110

A medicinal syringe including a tubular plunger from which air has been evacuated and a seal member releasably attached on the distal end of the plunger. Upon application of a predetermined longitudinal axial force to the seal member, the attachment between the seal member and the plunger will rupture, releasing the seal member for movement within the plunger. The seal member when released will be forced by the differential pressure between the vacuum and the ambient air into the interior of the tubular plunger. The plunger is slidably disposed in a tubular barrel. A needle is disposed in a hub releasably attached within the distal end of the barrel. Upon application of a predetermined longitudinal axial force to the hub, the attachment between the hub and the barrel will rupture, releasing the hub for movement within the barrel. The hub when released will be forced by the pressure differential, along with the distal plunger seal member, into the interior of the tubular plunger, carrying the needle with it. The attachment between the hub and barrel is adapted to rupture prior to that between the seal member and plunger.

5125898, Jun 30, 1992

Oct 15, 1991

7/776843

Harry Kaufhold - Houston TX
Martin Jasso - Houston TX
Gerald E. Kruckeberg - Cypress TX

A61M 532

604110

A disposable medicinal syringe including a tubular plunger from which air has been evacuated and a seal member releasably attached on the distal end of the plunger. The plunger is slidingly and sealingly disposed in the barrel of the syringe. A luer lock assembly is mounted within the barrel and includes a releasable hub portion which is securely engageable with the releasable plunger seal member, the securely engaged members when released being actuated by ambient air pressure into retraction into the evacuated plunger. The luer lock assembly is adapted for receiving a hypodermic needle or other medical device. Following use of the syringe, longitudinal axial force is applied to the proximal end of the plunger, thereby detaching, in sequence, first and second annular thin-walled portions of the luer lock assembly to release the hub portion for movement within the barrel, securely mounting the plunger seal member into the luer lock hub, and detaching the plunger seal member from the plunger at an annular thin-walled portion. The combined luer lock hub/plunger seal member and attached needle or other medical device are then forced into the evacuated interior of the plunger, safely isolating the needle or other medical device inside the plunger.

RE36764, Jul 4, 2000

Jun 7, 1995

8/488361

Nadim M. Zacca - Houston TX
Martin R. Jasso - Homewood AL

A61B 1732

606159

A device for removing obstructions from vessels or small openings in the body, comprising a rotatable ablator tip which is guided to the obstruction in a reduced diameter configuration, expanded and rotated to remove the obstruction, and contracted to remove the device from the body. The variably expandable abrasive tip coil in one embodiment of the invention is actuated by a piston means disposed within the coil. A pair of collars is attached to the ends of the coil, and the piston effects relative longitudinal axial movement of the collars and, hence, the respective ends of the coil tip. When the ends of the coil tip are so moved with respect to one another, expansion and contraction of the diameter of the coil tip results. In another embodiment of the invention, the expansion tip coil is actuated by an expandable and contractible bellows means disposed within the coil, instead of the piston means. In another embodiment of the invention, the expansion and contraction of the coil tip are effected by longitudinal axial movement of an internal coil attached to one end of the coil tip, within an outer coil attached to the other end of the coil tip.

5308354, May 3, 1994

Dec 10, 1991

7/805577

Nadim M. Zacca - Houston TX
Martin R. Jasso - Houston TX

A61B 1732

606159

A device for treating obstructions in vessels or small openings in the body, comprising a rotatable ablator tip which is guided to the obstruction in a reduced diameter configuration, expanded and rotated to remove the obstruction, and contracted to remove the device from the body. The variably expandable abrasive tip coil in one embodiment is actuated by piston means within the coil. A pair of collars is attached to the ends of the coil, and the piston effects relative longitudinal axial movement of the collars and the respective ends of the coil tip. When the ends of the coil tip are so moved, expansion and contraction of the diameter of the coil tip results. In another embodiment, the expansion tip coil is actuated by an expandable and contractible bellows disposed within the coil. In another embodiment, the expansion and contraction of the coil tip are effected by longitudinal axial movement of an internal coil attached to one end of the coil tip, within an outer coil attached to its other end. In another embodiment, expansion and contraction of the coil tip are effected by an inflatable balloon disposed within the coil tip.