David Michael Schaller

US Patent:

6540512, Apr 1, 2003

Filed:

Nov 30, 1999

Appl. No.:

09/451560

Inventors:

Rohit Sachdeva - Plano TX
Ron Jennings - Plano TX
David M. Schaller - Dallas TX
Thomas Weise - Berlin, DE
Rudger Rubbert - Berlin, DE
Friedrich Riemeier - Berlin, DE
Gary Sadow - Greer SC

Assignee:

OraMetrix, Inc. - Dallas TX

International Classification:

A61C 300

US Classification:

433 24, 433 3

Abstract:

A method and apparatus for treating an orthodontic patient include processing that begins by generating digital information regarding the orthodontic patient by a site orthodontic system. The site orthodontic system then transmits the digital information to an orthodontic server, which creates an electronic patient record therefrom. The orthodontic server then generates an initial treatment from the electronic patient record, wherein the initial treatment plan includes precise steps to obtain a desired orthodontic structure. The orthodontic server then transmits a digital version of the initial treatment plan to the site orthodontic system. Upon confirmation from the site orthodontic system, the orthodontic server designs an orthodontic apparatus for one of the precise steps based on the treatment plan. The orthodontic apparatus is then fabricated and provided to the site orthodontic system. At predetermined points in time after installation of the orthodontic apparatus in accordance with the treatment plan, the patients mouth is electronically scanned to obtain updated digital information.

US Patent:

6688885, Feb 10, 2004

Filed:

Apr 28, 2000

Appl. No.:

09/560642

Inventors:

Rohit Sachdeva - Plano TX
Ron Jennings - Plano TX
David M. Schaller - Dallas TX
Thomas Weise - Berlin, DE
Rudger Rubbert - Berlin, DE
Friedrich Riemeier - Berlin, DE
Gary Sadow - Greer SC

Assignee:

OraMetrix, Inc - Dallas TX

International Classification:

A61C 300

US Classification:

433 24

Abstract:

A method and apparatus for treating an orthodontic patient include processing that begins by generating digital information regarding the orthodontic patient by a site orthodontic system. The site orthodontic system then transmits the digital information to an orthodontic server, which creates an electronic patient record therefrom. The orthodontic server then generates an initial treatment from the electronic patient record, wherein the initial treatment plan includes precise steps to obtain a desired orthodontic structure. The orthodontic server then transmits a digital version of the initial treatment plan to the site orthodontic system. Upon confirmation from the site orthodontic system, the orthodontic server designs an orthodontic apparatus for one of the precise steps based on the treatment plan. The orthodontic apparatus is then fabricated and provided to the site orthodontic system. At predetermined points in time after installation of the orthodontic apparatus in accordance with the treatment plan, the patients mouth is electronically scanned to obtain updated digital information.

US Patent:

7976562, Jul 12, 2011

Filed:

May 10, 2007

Appl. No.:

11/801547

Inventors:

James Erich Bressler - Langhorne PA, US
David M. Schaller - Wallingford PA, US

Assignee:

Rex Medical, L.P. - Conshohocken PA

International Classification:

A61M 25/00

US Classification:

606200, 606108

Abstract:

A method of removing an implanted vessel filter by a femoral approach comprising the steps of providing a catheter with a curved tip, inserting a straightening device into the catheter to move the catheter tip from a curved position to a more straightened position, advancing the catheter tip through the femoral vein and past a cranial end of the filter, withdrawing the straightening device to enable the catheter tip to return to the curved condition, and inserting a filter grasping device though the catheter and a curved catheter tip to exit a distal portion to grasp the filter.

US Patent:

8062326, Nov 22, 2011

Filed:

Aug 3, 2007

Appl. No.:

11/888929

Inventors:

James Erich Bressler - Langhorne PA, US
David M. Schaller - Wallingford PA, US

Assignee:

Rex Medical, L.P. - Conshohocken PA

International Classification:

A61F 2/01

US Classification:

606200

Abstract:

A vessel filter including a first region and a second region wherein the filter is movable between a collapsed position for delivery to the vessel and an expanded position for placement within the vessel. A first region has a filter portion having a converging region to direct particles toward the center of the filter and the second region is flared in the expanded position to have a transverse dimension increasing toward a second end portion opposite the first end portion. The second region includes a vessel engaging portion at the second end portion. The first region includes a plurality of spaced apart elongated struts with adjacent struts being joined and a spacer extending radially with respect to a longitudinal axis of the filter.

US Patent:

8377093, Feb 19, 2013

Filed:

Jun 29, 2011

Appl. No.:

13/172355

Inventors:

James Erich Bressler - Langhorne PA, US
David M. Schaller - Wallingford PA, US

Assignee:

Rex Medical, L.P. - Conshohocken PA

International Classification:

A61F 2/01
A61F 2/84

US Classification:

606200, 623 111

Abstract:

A method of removing an implanted vessel filter by a femoral approach comprising the steps of providing a catheter, inserting a curved device into the catheter to a position proximal of the tip, advancing the catheter tip through the femoral vein and past a cranial end of the filter, inserting the curved device into the catheter tip to move the catheter tip to a more curved position, and inserting a filter grasping device though the curved device and catheter tip to exit a distal portion to grasp the filter.

US Patent:

8469990, Jun 25, 2013

Filed:

Oct 19, 2011

Appl. No.:

13/276419

Inventors:

James Erich Bressler - Langhorne PA, US
David M. Schaller - Wallingford PA, US

Assignee:

Rex Medical, L.P. - Conshohocken PA

International Classification:

A61F 2/01

US Classification:

606200

Abstract:

A vessel filter comprising a first region and a second region wherein the filter is movable between a collapsed position for delivery to the vessel and an expanded position for placement within the vessel. A first region has a filter portion having a converging region to direct particles toward the center of the filter and the second region is flared in the expanded position to have a transverse dimension increasing toward a second end portion opposite the first end portion. The second region includes a vessel engaging portion at the second end portion. The first region includes a plurality of spaced apart elongated struts with adjacent struts being joined and a spacer extending radially with respect to a longitudinal axis of the filter.

US Patent:

8500774, Aug 6, 2013

Filed:

Sep 1, 2009

Appl. No.:

12/551605

Inventors:

James E. Bressler - Langhorne PA, US
David M. Schaller - Wallingford PA, US

Assignee:

Rex Medical, L.P. - Conshohocken PA

International Classification:

A61F 2/01

US Classification:

606200

Abstract:

A vessel filter comprising a first distal region terminating at a first end and a second proximal region terminating at a second end of the filter and movable between a collapsed position for delivery to the vessel and an expanded position for placement within the vessel. The first region has a filter portion having a converging region to direct particles toward the center of the filter. The second region is flared in the expanded position to have a transverse dimension increasing toward a second end portion opposite the filter portion and includes a vessel engaging portion at the second end portion. The first region has a retrieval hook and a spacer forming a looped region extending radially from the first region.

US Patent:

20090099596, Apr 16, 2009

Filed:

May 9, 2008

Appl. No.:

12/151790

Inventors:

David M. Schaller - Wallingford PA, US
James Erich Bressler - Langhorne PA, US

International Classification:

A61B 17/06
A61B 17/08

US Classification:

606216, 606213

Abstract:

A device for closing the left atrial appendage of a patient comprising a retention member composed of a shape memory material and a mesh material supported by the retention member. The retention member has a first elongated configuration for delivery and a second expanded configuration for placement within the left atrial appendage. The mesh is configured to block blot clot migration from the appendage. In the second configuration the retention member moves toward a shape memory position. The retention member has a plurality of appendage wall engagement members to secure the retention member to the appendage.