Patents Assigned to Applied Medical Resources Corporation
  • Patent number: 10657845
    Abstract: A simulated abdominal wall model that is ideal for practicing laparoscopic first entry surgical techniques is provided. The model includes a simulated abdominal wall portion captured between two frame elements of a support. The support is connectable to a surgical trainer. When connected to the trainer, the model provides a penetrable abdominal tissue portion for accessing an internal cavity of the trainer. The simulated abdominal wall includes a plurality of layers including a skin layer, a fabric posterior rectus sheath layer, a simulated fat layer of low-resilience polyurethane foam and at least two layers that provide distinctive haptic feedback upon penetration of the simulated transversalis fascia and muscle layers. The simulated abdominal wall includes a simulated umbilicus across several layers of simulated tissue.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: May 19, 2020
    Assignee: Applied Medical Resources Corporation
    Inventors: Katie Black, Nikolai Poulsen, Heidi Holmes, Natasha Felsinger, Tracy Breslin, Kennii Pravongviengkham, Boun Pravong, Eduardo Bolanos, Zoran Falkenstein, Charles C. Hart, Tina Talwar
  • Patent number: 10610225
    Abstract: A powered handle for a surgical stapler can have a drive system including an electric motor. The powered handle can include a manual articulation mechanism to articulate a jaw assembly coupled to a reload shaft connected to the handle. The manual articulation mechanism can include a ball screw mechanism that translates an articulation member responsive to rotation of an articulation knob. The articulation mechanism includes a release function that allows the jaw assembly to return to a longitudinally centered orientation. The powered handle includes a battery pack serving as a power supply for the drive system. A control system can control actuation of the motor based on user inputs and operating parameters of the stapler. The powered handle can include a manual return mechanism.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: April 7, 2020
    Assignee: Applied Medical Resources Corporation
    Inventors: Christina N. Reed, Matthew M. Becerra, Andrew J. McCarthy, Scott Zimmerman, Joshua M. Schober, Steven E. Decker, Kevin Hudson, Andy Pham
  • Patent number: 10595866
    Abstract: A handle assembly for a surgical stapler can comprise a rotatable actuation shaft. The actuation shaft can have a first rotational orientation in which it can actuate a jaw assembly in a repeatable open and close mode, a second rotational orientation in which it can actuate a jaw assembly in a staple firing mode, and a third rotational orientation in which it can actuate a jaw assembly in a reversing mode. The handle assembly can include a rotational mechanism arranged to discretely position the rotatable actuation shaft in one of the rotational orientations. The rotational mechanism can be arranged for single handed operation such as by including a slidable switch or selector to rotate the actuation shaft.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: March 24, 2020
    Assignee: Applied Medical Resources Corporation
    Inventors: Atal Patel, Jonathan Covach, Christina N. Reed, Gary M. Johnson, Matthew M. Becerra
  • Patent number: 10575840
    Abstract: A retractor/protector suitable for use in a surgical incision or a natural orifice comprises a longitudinal axis defining an instrument access channel extending from a proximal end to a distal end; a flexible outer ring; an inner ring; a flexible sheath extending between the outer ring and the inner ring; and at least one rigid segment adapted to attach to the flexible outer ring to thereby increase the rigidity of the outer ring. Embodiments of the retractor/protector are described that have interlocking and non-interlocking rigid segments. Embodiments are also described that have bases that insert into or under the flexible outer ring in addition to or in lieu of rigid segments to increase rigidity and/or provide support for a detachable cap.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: March 3, 2020
    Assignee: Applied Medical Resources Corporation
    Inventors: Jeremy J. Albrecht, Matthew M. Becerra, Eric Nguyen
  • Patent number: 10568658
    Abstract: The invention is directed to a bladeless trocar obturator to separate or divaricate body tissue during insertion through a body wall. In one aspect, the obturator of the invention comprises a shaft extending along an axis between a proximal end and a distal end; and a bladeless tip disposed at the distal end of the shaft and having a generally tapered configuration with an outer surface, the outer surface extending distally to a blunt point with a pair of side sections having a common shape and being separated by at least one intermediate section, wherein each of the side sections extends from the blunt point radially outwardly with progressive positions proximally along the axis, and the shaft is sized and configured to receive an optical instrument having a distal end to receive an image of the body tissue. With this aspect, the tapered configuration facilitates separation of different layers of the body tissue and provides proper alignment of the tip between the layers.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: February 25, 2020
    Assignee: Applied Medical Resources Corporation
    Inventors: Henry Kahle, Arkadiusz A. Strokosz, Kimball B McGinley, Scott V. Taylor, Gary M. Johnson, John R. Brustad
  • Patent number: 10568659
    Abstract: A guard for providing a cut-resistant pathway through a body orifice or incision to circumferentially protect tissue at the margin is provided. The guard is made of flexible, cut-resistant mesh material having a plurality of interwoven thermosetting filaments. The guard has a central lumen and at least one flared end. The flared end, which serves to anchor the guard in the body opening, is deformable into a reduced configuration to facilitate its insertion and removal. The layer of mesh stretches laterally to increase the diameter of the central lumen. The flexibility and expandability of the guard allows the guard to conform to body openings of different sizes. The guard may include a drawstring to cinch the flared distal end from the proximal end. The guard is thermoset with the flared distal end that is biased to spring back to its normal, undeformed configuration when released from a deformed configuration.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: February 25, 2020
    Assignee: Applied Medical Resources Corporation
    Inventors: Alexandra Do, Boun Pravong, Serene Wachli
  • Patent number: 10537345
    Abstract: The tissue retrieval system deploys a tissue bag at the surgical site. The bag is supported by the system as tissue is placed within the bag and is closed to isolate the collected tissue and allow the bag and collected tissue to be removed from the body. The bag can be reopened and re-closed as desired through use of a guide bead and cord. The bead also facilitates removal of the collected tissue.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: January 21, 2020
    Assignee: Applied Medical Resources Corporation
    Inventors: Henry Kahle, Gary M. Johnson, Scott V. Taylor, Greg I. Bak-Boychuk
  • Patent number: 10535281
    Abstract: A surgical training model that includes a simulated tissue having a tubular shape that is connected to a tissue holder is provided. A portion of the simulated tissue overhangs the distal end of the tissue holder to simulate a cuff-like entry to the vaginal vault or resected intestine suitable for practicing laparoscopic closure of the vaginal vault, intestine or other organ via suturing or stapling. Two concentric tubular structures are also arranged over the same tissue holder. A second model includes two portions of simulated tissue that are held by two holders such that the simulated tissues are adjacent making the model suitable for practicing different types of anastomosis procedures. A third model includes two holders with a single or double tubular simulated tissue structure connected to and spanning a gap between the holders. The model isolates the step of closing a cylindrical opening for the purpose of repeated practice.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: January 14, 2020
    Assignee: Applied Medical Resources Corporation
    Inventors: Tracy Breslin, Charles C. Hart, Serene Wachli, Adam Hoke, Nikolai Poulsen, Michael Palermo, Lee Cohen, Jacqueline DeMarchi, Amy Garces
  • Patent number: 10517597
    Abstract: A handle assembly for a surgical stapler can comprise a rotatable actuation shaft. The actuation shaft can have a first rotational orientation in which it can actuate a jaw assembly in a repeatable open and close mode, a second rotational orientation in which it can actuate a jaw assembly in a staple firing mode, and a third rotational orientation in which it can actuate a jaw assembly in a reversing mode. The handle assembly can include an articulation mechanism including a ball screw to selectively articulate the jaw assembly relative to an elongate shaft.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: December 31, 2019
    Assignee: Applied Medical Resources Corporation
    Inventors: Joshua M. Schober, Andrew J. McCarthy, Babak D. Jasemian
  • Patent number: 10507017
    Abstract: An incrementally adjustable wound retractor (500), having a first ring (504) with a diameter greater than the desired diameter of the wound incision, a flexible second ring (502), having a lumen and a diameter greater than the desired diameter of the wound incision, and a flexible sleeve (506), disposed in a generally cylindrical form between the first and second rings (502, 504), where the second ring may be rolled over itself to provide a sleeve with a radical retraction force sufficient to stretch the incision to the desired diameter.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: December 17, 2019
    Assignee: Applied Medical Resources Corporation
    Inventors: Eric Nguyen, Donald L. Gadberry, Gary M. Johnson, Charles C. Hart, John R. Brustad, Robert R. Bowes, Jeremy J. Albrecht, Ghassan Sakakine, Henry Kahle
  • Patent number: 10493219
    Abstract: Pressure conditioning systems for supplying insufflation gas to an open-ended body conduit such as a rectal cavity during a transanal minimally invasive surgery (TAMIS) procedure can reduce billowing of walls of the body conduit. A pressure conditioning system can include a pressure storage component, an accumulator, and a flow restrictor. The pressure storage component can include a variable volume reservoir that is biased to a relatively low volume state. The flow restrictor can include insufflation tubing with a restrictor plate having a relatively low diameter orifice. The pressure storage component, accumulator, and flow restrictor can be fluidly connected in various orders in series or as side branches from a gas flow conduit. Despite a pulsed or otherwise discontinuous insufflation gas flow and leakage and absorption from the body conduit, the pressure conditioning system can maintain a constant pressure within the body conduit.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: December 3, 2019
    Assignee: Applied Medical Resources Corporation
    Inventors: Ralph Sias, Alexandra Do, Nikolai Poulsen, Boun Pravong, Kennii Pravongviengkham, Timothy McMorrow, W.F. Anthony Miles
  • Patent number: 10492828
    Abstract: A surgical access port for passage through body tissue to provide access to an underlying tissue site is provided. The access port has a working channel dimensioned for receiving a surgical instrument and a seal assembly for providing a substantial seal before, during and after insertion of a surgical instrument. The seal assembly includes an instrument seal and a zero seal. The instrument seal includes a proximal base that is interconnected to a distal instrument engaging portion by an elongate supporting portion. The engaging portion has a lateral dimension larger than the lateral dimension of the supporting portion forming a bulbous, mushroom-like head. The lateral dimension of the engaging portion decreases toward a distal opening of the instrument seal such that the distal end of the engaging portion is substantially perpendicular to the seal axis. The supporting portion closely conforms to an inserted instrument and serves to align the distal end of the seal.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: December 3, 2019
    Assignee: Applied Medical Resources Corporation
    Inventors: Charles C. Hart, Jeremy J. Albrecht
  • Patent number: 10485578
    Abstract: A surgical access port is provided with a trocar cannula having a substantially rigid portion and an atraumatic distal tip. The atraumatic distal tip is substantially compliant relative to the rigid portion of the cannula. The trocar cannula provides unobstructed surgical access into a body cavity allowing the insertion and removal of surgical instruments through the trocar cannula and into the body cavity using a minimal sized incision or entryway.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: November 26, 2019
    Assignee: Applied Medical Resources Corporation
    Inventors: Kennii Pravongviengkham, Henry Kahle, Jeremy J. Albrecht, Scott V. Taylor
  • Patent number: 10490105
    Abstract: An appendectomy model for surgical training is provided. The model includes a simulated large intestine with a central lumen interconnected with a lumen of an artificial appendix. The model also includes a simulated appendiceal artery, simulated mesoappendix and a simulated ileum. The simulated ileum made of white silicone is embedded between a first layer of pink silicone and a second layer of pink silicone to create a realistic anatomical landmark particularly suitable for laparoscopic appendectomy training.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: November 26, 2019
    Assignee: Applied Medical Resources Corporation
    Inventor: Khodr Saleh
  • Patent number: 10478219
    Abstract: A surgical access port or trocar is provided. The trocar has a trocar seal housing and a trocar cannula with an optical obturator insertable through the trocar seal housing and the trocar cannula. The trocar is configured to access a body cavity, to maintain positive pressure and to prevent loss of surgical insufflation gas used in laparoscopic procedures. The trocar seal housing can be releasably attached to the trocar cannula. The trocar seal housing may also have a shield and/or alignment channel that provide protection or assist in operation of instrument and zero seals housed in the trocar seal housing.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: November 19, 2019
    Assignee: Applied Medical Resources Corporation
    Inventors: Kimball B. McGinley, Henry Kahle, Scott V. Taylor, Gary M. Johnson
  • Patent number: 10463352
    Abstract: Systems and methods for tissue containment and retrieval are disclosed. The containment system includes a primary chamber interconnected with a secondary channel extending from the primary chamber. A tissue specimen is mobilized inside a body cavity and placed into the primary chamber through a first opening. The first opening is pulled through a first incision or orifice and the narrower secondary channel is placed at a second incision or orifice. A second opening at the end of the secondary channel permits observation via a scope inserted through the second opening of the tissue specimen in the primary chamber undergoing morcellation via the first opening. Other systems and methods for deployment, containment, debulking and sealing of the second opening to create a closed system for the safe retrieval of the tissue specimen are provided.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: November 5, 2019
    Assignee: Applied Medical Resources Corporation
    Inventors: Alexandra Do, Tracy Breslin, Emily Yin, Serene Wachli, Charles C. Hart, Jacob J. Filek
  • Patent number: 10456125
    Abstract: Devices, methods, and systems provide a surgical access device comprising an internal retractor device integrated with or coupled to a body wall or wound retractor. The wound retractor retracts an opening in a body wall into a body cavity, while the internal retractor permits a user to control the positions of internal structures within the body cavity, thereby permitting a user to define a surgical field. Embodiments of the internal retractor are adjustable.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: October 29, 2019
    Assignee: Applied Medical Resources Corporation
    Inventors: Charles C. Hart, Gary M. Johnson, Eric Nguyen, Edward D. Pingleton, Kennii Pravongviengkham, Ghassan Sakakine, Serene Wachli, John R. Brustad, Olivia Tran
  • Patent number: 10448949
    Abstract: A laparoscopic surgical stapler can include an articulation joint between an elongate shaft and a jaw assembly. The articulation joint can include a latch mechanism allowing a user to selectively allow the jaw assembly to be freely pivotable with respect to the elongate shaft in an unlatched configuration and positionable in an aligned position or one of several predetermined articulated positions in a latched configuration. The latch mechanism of the articulation joint is biased to the latched configuration and is operable in a ‘push-to-release’ manner.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: October 22, 2019
    Assignee: Applied Medical Resources Corporation
    Inventors: Steven E. Decker, Atal C. Patel, Erik Nelson
  • Patent number: 10420576
    Abstract: Surgical tools that can be used in single port laparoscopic procedures can include a low-profile handle assembly to minimize tool interference adjacent the incision site. For example, a handle assembly for a surgical instrument can have a generally in-line configuration extending linearly along a central longitudinal axis of an elongate shaft of the instrument. A linkage mechanism including a trigger, an actuation link, and an actuation shaft can be positioned within the in-line handle. The linkage mechanism can be pivoted between an open position in which end effectors of the instrument are open and a toggle position in which the end effectors are locked closed. A locking mechanism such as a ratchet mechanism can also be used to lock the end effectors. A surgical dissector can include gripping jaws having a curved profile or an angled elongate shaft to minimize tool interference and maximize visibility within a procedure site.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: September 24, 2019
    Assignee: Applied Medical Resources Corporation
    Inventors: Arkadiusz A. Strokosz, David T. Okihisa, Steven E. Decker, Phillip DeAlday, Scott V. Taylor, Henry Kahle
  • Patent number: 10420584
    Abstract: A cannula assembly having a retention member and a method of manufacture of the cannula assembly is provided. The cannula assembly includes a cannula and a sleeve disposed around the cannula from a proximal end to a distal end. The sleeve can include a balloon formed by a stretch blow molding process following local heating once advanced over the cannula. Once formed, the balloon can be conditioned to constrict against the cannula. A conditioning aid can be advanced over the balloon when it is still formable to constrict the balloon against the cannula.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: September 24, 2019
    Assignee: Applied Medical Resources Corporation
    Inventors: Boun Pravong, Kennii Pravongviengkham, Eduardo Bolanos, Joel B. Velasco