Nathaniel V Tran

US Patent:

8551049, Oct 8, 2013

Filed:

Jun 10, 2011

Appl. No.:

13/157434

Inventors:

Douglas E. Ott - Macon GA, US
Nathaniel V. Tran - Apple Valley MN, US

Assignee:

Lexion Medical, LLC - St. Paul MN

International Classification:

A61M 5/178

US Classification:

60416703, 604 23, 604 26, 60416705

Abstract:

Devices and methods for vacuum-assisted removal of surgically contaminated gas from an insufflated body cavity, the contaminants comprising smoke, aerosols, vapor, mist and the like generated during surgical procedures in order to clear the surgeon's vision of the surgical site and prevent exposure of the surgical staff to the gas. One embodiment of the present invention comprises a series of flow restriction devices to enable stepping down of the flow rate generated by an external vacuum. This reduced flow rate allows safe yet rapid removal of the toxic and vision-obstructing surgical byproducts from the patient's body cavity. The initial flow restriction device may comprise a perforated trocar sleeve in fluid communication with the vacuum source that allows retention of the surgical instrument within the trocar sleeve's inner lumen with concurrent smoke removal. A series of additional flow restriction devices located downstream of the perforated sleeve's intake ports are employed to safely limit the flow rate to a manageable and known value.

US Patent:

8551050, Oct 8, 2013

Filed:

Jun 10, 2011

Appl. No.:

13/157561

Inventors:

Douglas E. Ott - Macon GA, US
Nathaniel V. Tran - Apple Valley MN, US

Assignee:

Lexion Medical, LLC - St. Paul MN

International Classification:

A61M 5/178

US Classification:

60416703, 604 23, 604 26, 60416705

Abstract:

Devices and methods for vacuum-assisted removal of surgically contaminated gas from an insufflated body cavity, the contaminants comprising smoke, aerosols, vapor, mist and the like generated during surgical procedures in order to clear the surgeon's vision of the surgical site and prevent exposure of the surgical staff to the gas. One embodiment of the present invention comprises a series of flow restriction devices to enable stepping down of the flow rate generated by an external vacuum. This reduced flow rate allows safe yet rapid removal of the toxic and vision-obstructing surgical byproducts from the patient's body cavity. The initial flow restriction device may comprise a perforated trocar sleeve in fluid communication with the vacuum source that allows retention of the surgical instrument within the trocar's inner lumen with concurrent smoke removal. The flow rate is infinitely variable, adjustable and selectable using a flow control adjuster comprising a smoothly varying orifice.

US Patent:

20130204180, Aug 8, 2013

Filed:

Jan 25, 2013

Appl. No.:

13/750569

Inventors:

Lexion Medical, LLC - St. Paul MN, US
Nathaniel V. Tran - Apple Valley MN, US
Steven B. Williams - White Bear Lake MN, US
Brandon Lee Michal - White Bear Lake MN, US

Assignee:

Lexion Medical, LLC - St. Paul MN

International Classification:

A61M 13/00

US Classification:

604 24

Abstract:

In accordance with one embodiment of the present disclosure, a surgical method may include making an incision in a patient. The method may also include opening the incision in order to create an open surgical site in the patient. The method may further include receiving a gas from a source. The method may further include humidifying and warming the gas received from the source. The method may further include successively reflecting the humidified and warmed gas off a plurality of non-porous surfaces within a non-porous gas delivery mechanism to create a flow. The method may further include delivering the flow of the humidified and warmed gas adjacent to or into the open surgical site.

US Patent:

20130255670, Oct 3, 2013

Filed:

Apr 1, 2013

Appl. No.:

13/854682

Inventors:

Nathaniel V. Tran - Apple Valley MN, US
Steven B. Williams - White Bear Lake MN, US
Brandon Lee Michal - White Bear Lake MN, US

Assignee:

Lexion Medical, LLC - St. Paul MN

International Classification:

A61M 11/02

US Classification:

12820014

Abstract:

In accordance with one embodiment of the present disclosure, a method for performing a surgical procedure may include atomizing at least a portion of a humidification liquid. The method may also include receiving a gas from a source. The method may further include generating a vortex flow of the received gas. The method may further include combining the vortex flow of the received gas with at least a portion of the atomized humidification liquid in order to humidify the received gas. The method may further include providing the humidified gas adjacent to or into a patient.

US Patent:

20220378409, Dec 1, 2022

Filed:

Feb 24, 2022

Appl. No.:

17/679934

Inventors:

- Orono MN, US
Nathaniel Van Tran - Lakeville MN, US
Thomas A. Westling - Orono MN, US
Howard W. Harris - Southlake TX, US
David M. Crompton - St. Paul MN, US
Patrick M. Connor - Charlotte NC, US

International Classification:

A61B 17/04

Abstract:

Soft suture anchors are disclosed that can be formed into a pre-strung array with a common working suture. Each anchor includes the common working suture and a soft anchor member that is expandable when implanted. This allows first locking an individual anchor into a bone hole followed by tensioning the suture and independently locking the suture at the anchor. A first anchor is implanted through the tendon and the suture is locked. A second anchor is implanted a selected close distance from the first anchor, the working suture is tensioned between the first and second anchors, and the working suture is locked at the second anchor to create a single suture tensioned and locked stitch between the first and second anchor. This process is repeated for each anchor in the array.

US Patent:

20220370066, Nov 24, 2022

Filed:

Aug 2, 2022

Appl. No.:

17/879650

Inventors:

- Plymouth MN, US
Nathaniel Zenz-Olson - Blaine MN, US
Nathaniel Tran - Lakeville MN, US

Assignee:

Rotation Medical, Inc. - Plymouth MN

International Classification:

A61B 17/068
A61B 17/064

Abstract:

A fastener delivery tool may comprise a sheath assembly having at least one position retention member proximate a distal end of the sheath assembly, and a handle assembly coupled to a proximal end of the sheath assembly, the handle assembly comprising a housing, a trigger handle, and an insert connector. An external force applied to the trigger handle may cause displacement of the trigger handle relative to a rest position, and displacement of the trigger handle from the rest position within a first displacement range may impart a first amount of force on the insert connector relative to the applied external force and displacement of the trigger handle from the rest position within a second displacement range may impart a second amount of force on the insert connector relative to the applied external force, with the first amount of force being greater than the second amount of force.

US Patent:

20220323058, Oct 13, 2022

Filed:

Feb 25, 2022

Appl. No.:

17/681490

Inventors:

- Orono MN, US
Nathaniel Van Tran - Lakeville MN, US
Thomas A. Westling - Orono MN, US
David M. Crompton - St. Paul MN, US
Howard W. Harris - Southlake TX, US
Patrick M. Connor - Charlotte NC, US

International Classification:

A61B 17/04

Abstract:

Methods for creating high-density arrays of suture stiches through a tendon into bone for reattachment of a torn tendon, particularly a rotator cuff tendon. The method includes providing a pre-strung plurality of anchors, each anchor having at least one passage therethrough with a continuous length of suture slidably and serially threaded through the at least one passage of each anchor. Each of the anchors further includes a locking assembly for locking the suture within the individual anchor. A first anchor is implanted through the tendon and the suture is locked. A second anchor is implanted a selected close distance from the first anchor, then applying tension to the suture extending from the first anchor and passing through the second anchor the second anchor is locked to create a single suture tensioned and locked stitch between the first and second anchor. This process is repeated for each anchor in the array.

US Patent:

20220323059, Oct 13, 2022

Filed:

Feb 25, 2022

Appl. No.:

17/681501

Inventors:

- Orono MN, US
Nathaniel Van Tran - Lakeville MN, US
Thomas A. Westling - Orono MN, US
Marc Labbé - Spring TX, US
Howard W. Harris - Southlake TX, US
David M. Crompton - St. Paul MN, US

International Classification:

A61B 17/04
A61F 2/08

Abstract:

Cartridges configured to hold anchors and associated locking sutures and a common suture used in an array of anchors. A suture anchor array is connected in series by a single working suture and each of the suture anchors allows tensioning of the working suture between itself and the prior anchor implanted in the serial string. Further, each anchor includes a suture lock having a free tail that can be pulled to lock the working suture in place subsequent to tensioning. This creates an independently tensioned suture bridge between each implanted suture anchor and the just previously implanted anchor. The cartridges are configured to securely hold an individual anchor and store the tail of the suture lock, while allowing flossing of anchors along the common suture.