Brandon G Loudermilk

US Patent:

20110230875, Sep 22, 2011

Filed:

Mar 23, 2011

Appl. No.:

13/070391

Inventors:

Erik Walberg - Redwood City CA, US
Lawrence Kerver - Los Gatos CA, US
Brian Tang - Fremont CA, US
Brandon Loudermilk - San Francisco CA, US

International Classification:

A61B 18/18

US Classification:

606 33

Abstract:

Embodiments of the technology provide an articulable electrosurgical instrument and methods of performing electrosurgery with an articulating capability. The electrosurgical instrument includes an elongated shaft having an end effector associated with a distal end thereof that is able to deliver energy to a target tissue site. An articulable joint is positioned between that shaft and the end effector. Articulation of the articulable joint is controlled by a stabilizable articulation actuator, which may include a rotatably stabilizable disk residing within a well. The end effector may take the form of forceps including an upper and a lower jaw; the jaws are configured to grasp target tissue and to deliver energy, such as radiofrequency energy. In some of these instruments, the end effector is adapted to seal tissue by the application of radiofrequency energy, and then to cut through the sealed tissue portion.

US Patent:

20110184404, Jul 28, 2011

Filed:

Feb 4, 2011

Appl. No.:

13/021633

Inventors:

Erik Walberg - Redwood City CA, US
Brandon Loudermilk - San Francisco CA, US

International Classification:

A61B 18/14
A61B 18/18

US Classification:

606 33, 606 41

Abstract:

Embodiments of the disclosed technology relate to a bipolar electrosurgical device for a laparoscopic environment, as well as methods for the use of such a device. Embodiments of the device may include a set of opposing jaws comprising at least one bipolar electrode pair disposed thereon, the set of jaws configured to deliver radiofrequency energy to a target tissue. Embodiments of the set of jaws, when closed, may have a diameter no greater than about 5 mm. The device may further include a shaft with a diameter that may be no greater than about 5 mm. Each of the jaws has a tissue-facing surface of each jaw that may include a complementary self-aligning configuration with respect to the longitudinal axis of the other jaw. Embodiments of the device may further include a pinless rotation assembly formed from rotatably cooperative features of the first jaw and the second jaw that connect the jaws together and enable the jaw set to pivot between an open position and a closed position.

US Patent:

20180185087, Jul 5, 2018

Filed:

Feb 26, 2018

Appl. No.:

15/905005

Inventors:

- Tuttlingen, DE
Brandon Loudermilk - San Francisco CA, US

International Classification:

A61B 18/14
A61B 18/00
A61B 90/00
A61B 17/29

Abstract:

Embodiments of the disclosed technology relate to a bipolar electrosurgical device for a laparoscopic environment, as well as methods for the use of such a device. Embodiments of the device may include a set of opposing jaws comprising at least one bipolar electrode pair disposed thereon, the set of jaws configured to deliver radiofrequency energy to a target tissue. Embodiments of the set of jaws, when closed, may have a diameter no greater than about 5 mm. The device may further include a shaft with a diameter that may be no greater than about 5 mm. Each of the jaws has a tissue-facing surface of each jaw that may include a complementary self-aligning configuration with respect to the longitudinal axis of the other jaw. Embodiments of the device may further include a pinless rotation assembly formed from rotatably cooperative features of the first jaw and the second jaw that connect the jaws together and enable the jaw set to pivot between an open position and a closed position.

US Patent:

20150250528, Sep 10, 2015

Filed:

Sep 26, 2013

Appl. No.:

14/430948

Inventors:

- Tuttlingen, DE
Brandon Loudermilk - Palo Alto CA, US

International Classification:

A61B 18/14

Abstract:

An electrosurgical device for cutting and sealing tissue includes an upper jaw located at a distal end of the electrosurgical device that opposes a lower jaw. The lower jaw is pivotally connected to the upper jaw by a pivot connection. The pivot connection includes a passage that contains a portion of the upper jaw. The upper jaw is axially displaceable through the passage to pivot the upper jaw relative to the lower jaw between a relatively open condition and a relatively closed condition. The upper jaw and lower jaw are operable in the relatively closed condition to deliver RF energy to tissue.

US Patent:

20140236152, Aug 21, 2014

Filed:

Aug 22, 2012

Appl. No.:

14/239634

Inventors:

Erik Walberg - San Jose CA, US
Brandon Loudermilk - San Francisco CA, US
Timothy Koss - Palo Alto CA, US
Douglas C. Limbach - Palo Alto CA, US
Mark Stirrat - Palo Alto CA, US

Assignee:

Aesculap AG - Tuttlingen

International Classification:

A61B 18/14

US Classification:

606 52

Abstract:

Embodiments of the disclosed technology relate to bipolar electrosurgical devices, as well as methods of manufacture and use of such devices. Embodiments of the device may include a set of opposing jaws comprising at least one bipolar electrode pair disposed thereon, the set of jaws configured to deliver radiofrequency energy to a target tissue. In some embodiments, a standoff member is provided to maintain a physical gap between the pair(s) of electrodes.