Michael R Calhoun

US Patent:

6494881, Dec 17, 2002

Filed:

Sep 30, 1997

Appl. No.:

08/940665

Inventors:

Thomas O. Bales - Coral Gables FL
Michael W. Calhoun - Fort Lauderdale FL
Robert Sixto, Jr. - Miami FL
John E. Abele - Concord MA

Assignee:

Scimed Life Systems, Inc. - Maple Grove MN

International Classification:

A61B 1818

US Classification:

606 45, 606 41, 606 48, 606 49, 606 50

Abstract:

An electro-surgical device for performing tissue resection and cauterization includes an elongated body, a pair of arms extending from a distal end of the elongated body, and an electrode in communication with the pair of arms. The elongated body is adapted to be coupled to a source of energy at a proximal end. The electrode has a first region coated with an insulative coating and a second region for focusing energy emission. The coating can be a diamond-like carbon coating or other coating exhibiting resistance to cracking at high temperatures and high voltages. The coating can be deposited on a base section of a loop electrode while the end sections remain free of the coating. Alternatively, the coating can be unevenly deposited on the electrode. In other embodiments, the electrode can comprise a rollerball and the insulative coating can be deposited on selected or random portions of the rollerball. The insulative coating prevents energy loss to fluid and tissue during the operation, thus allowing resection and cauterization to be efficiently performed.

US Patent:

8053596, Nov 8, 2011

Filed:

Nov 2, 2009

Appl. No.:

12/610833

Inventors:

Dennis Neigel - Salisbury NC, US
Michael Calhoun - Pompano Beach FL, US
Ed Richman - Lower Gwynedd PA, US

Assignee:

Third Stream Bioscience, Inc. - Ft. Lauderdale FL

International Classification:

C07C 309/10

US Classification:

562110

Abstract:

A process for preparing alkyl glyceryl sulfonate includes fractionally distilling an alkyl glyceryl epoxide mixture to afford alkyl glyceryl epoxide of formula IV:.

US Patent:

20130046382, Feb 21, 2013

Filed:

Feb 22, 2011

Appl. No.:

13/579312

Inventors:

Rudy A. Mazzocchi - Rockledge FL, US
Michael Calhoun - Lighthouse Point FL, US

International Classification:

A61F 2/16

US Classification:

623 663

Abstract:

The present invention comprises an implant for placing inside the eye such that the implant comes into contact with the interior tissue of the eye such that it conforms to the inner globe geometry of the eye. Implants of the present invention may also be used to alter the focal length of the eye thereby providing a treatment method for the correction of myopia and hyperopia. The device may consist of several possible configurations, an open mesh structure, a solid metal ring, a solid polymer shape, a mesh polymer shape or combination of these. The shape may be a curve, a sphere, a ring or a combination thereof that are specifically shaped to approximate a desired portion of the interior globe of the eye in order to treat myopia or hyperopia.

US Patent:

56069804, Mar 4, 1997

Filed:

Nov 14, 1994

Appl. No.:

8/339376

Inventors:

Michael W. Calhoun - Fort Lauderdale FL
Fernando M. Viera - Hialeah FL

Assignee:

Cordis Corporation - Miami Lakes FL

International Classification:

A61B 500

US Classification:

128772

Abstract:

A magnetic device for use with a medical catheter and a guidewire incorporates a magnet adapted to attract a portion of the guidewire and thereby impose a magnetic force tending to inhibit longitudinal motion of the guidewire.

US Patent:

53185412, Jun 7, 1994

Filed:

Mar 2, 1993

Appl. No.:

8/024509

Inventors:

Fernando M. Viera - Hialeah FL
Michael W. Calhoun - Fort Lauderdale FL

Assignee:

Cordis Corporation - Miami Lakes FL

International Classification:

A61M 518

US Classification:

604159

Abstract:

A catheter exchange tool for use in vascular dilitation procedures comprising a tool couplable between a balloon catheter and a balloon guidewire. The tool is operated by a physician to exert a longitudinal force on the balloon catheter and, in response to the exertion of the force on the catheter, simultaneously exert an equal and opposite force on the balloon guidewire.

US Patent:

20210145463, May 20, 2021

Filed:

Jul 24, 2020

Appl. No.:

16/938175

Inventors:

- Plano TX, US
Michael Calhoun - Lighthouse Point FL, US
Jeff Franco - Plano TX, US

Assignee:

J.D. Franco & Co., LLC - Plano TX

International Classification:

A61B 17/22
A61M 25/10
A61M 25/00

Abstract:

A method may include delivering a first catheter to a location within an arterial vasculature of a subject. The location may include at least one of an internal carotid artery of the subject or a junction between an ophthalmic artery of the subject and the internal carotid artery of the subject. The method also may include moving a second catheter relative to the first catheter so as to reorient a direction of a distal opening of the second catheter, the second catheter being connected to the first catheter at a joint.

US Patent:

20200138626, May 7, 2020

Filed:

Oct 31, 2019

Appl. No.:

16/670456

Inventors:

- Plano TX, US
Michael Calhoun - Lighthouse Point FL, US

Assignee:

J.D. Franco & Co., LLC - Plano TX

International Classification:

A61F 9/007

Abstract:

A method is provided and may include accessing a terminal branch of an ophthalmic artery through a skin of a head of a subject via a first device, positioning at least one of the first device or a second device within the ophthalmic artery of the subject, and performing an atherectomy of the ophthalmic artery or a junction between the ophthalmic artery and an internal carotid artery of the subject, using the at least one of the first device or the second device, so as to treat a blockage, a stenosis, a lesion, plaque, or other physiology in the ophthalmic artery or the junction between the ophthalmic artery and the internal carotid artery of the subject.

US Patent:

20190366060, Dec 5, 2019

Filed:

Jun 20, 2019

Appl. No.:

16/447414

Inventors:

- Plano TX, US
Michael Calhoun - Lighthouse Point FL, US

Assignee:

J.D. Franco & Co., LLC - Plano TX

International Classification:

A61M 25/10
A61B 17/12

Abstract:

A method may include inflating a first balloon within an internal carotid artery so as to block antegrade flow of blood into an ophthalmic artery. Additionally, the method may include maintaining antegrade flow of blood in the internal carotid artery via a perfusion lumen in the first balloon. Further, the method may include inserting a device into the ophthalmic artery via a lumen extending through a portion of the first balloon to a side opening in the first balloon.