Patents Issued in March 19, 2020
  • Publication number: 20200085450
    Abstract: The present invention relates to a positioning device (100, 100?, 100?) for securing an intramedullary nail (19) in a long bone, said positioning device comprising a guide bow (1), with an adjusting device (3) and a sleeve guide (2), wherein the adjusting device (3) has a targeting device (5); and wherein the targeting device (5) is designed to receive a locking device (21) or an instrument (23) for acting on the locking device (21); and wherein the sleeve guide (2) has a sleeve (7), which sleeve (7) is mounted in the sleeve guide (2) such that it can be rotated and/or slid relative to the sleeve guide (2); and wherein the sleeve (7) has a longitudinal through-opening for receiving a guiding device therein.
    Type: Application
    Filed: November 25, 2019
    Publication date: March 19, 2020
    Inventors: Hao LUO, Ulrich SCHREIBER
  • Publication number: 20200085451
    Abstract: Methods and apparatuses including apparatuses that can he used in a unicompartmental knee replacement procedure, a bicompartmental knee replacement procedure comprised of two unicompartmental knee replacements, a knee replacement procedure that utilizes a single femoral component and two unicompartmental tibial components, and other types of knee replacement procedures are disclosed. According to one example, an apparatus for guiding a tibial bone cut during knee replacement surgery is disclosed. The apparatus can comprise a mounting portion and a cutting portion. The mounting portion can be configured to couple with an alignment mechanism. The cutting portion can be connected to the mounting portion and can define a capture for a proximal cut. The cutting portion can have an aperture disposed adjacent a first end of the capture.
    Type: Application
    Filed: November 18, 2019
    Publication date: March 19, 2020
    Inventors: Nolan C. Jones, Lindsey R. Rolston, Jeffery A. VanDiepenbos, Brian D. Earl, Anthony Romano, Andrew Freiberg
  • Publication number: 20200085452
    Abstract: An alignment guide for total ankle replacement surgery and a method of creating and using the alignment guide. The alignment guide has a surface that interfaces with a corresponding surface of a superior aspect a talus of a patient, and as second surface portion that interfaces with a corresponding distal surface of a section of a tibia of the patient. When the alignment guide is in position, it maintains the ankle of the patient in a preselected position.
    Type: Application
    Filed: September 6, 2019
    Publication date: March 19, 2020
    Applicant: DREXEL UNIVERSITY
    Inventor: Sorin Siegler
  • Publication number: 20200085453
    Abstract: An infusion/aspiration catheter comprises an elongate catheter body, at least one infusion lumen, and an aspiration lumen extending between a proximal end and a distal end of the catheter body. The aspiration lumen terminates in a distal fluid port at the distal end of the catheter body. The catheter further comprises arms respectively having proximal ends affixed together at the distal end of catheter body. The distal fluid port of the catheter body is between the proximal ends of the arms, the arms have lumens in fluid communication with the infusion lumen(s), and each of the arms has fluid ports in fluid communication with the lumen of the respective arm. The catheter further comprises at least one infusion connector in fluid communication with the infusion lumen(s), and an aspiration connector in fluid communication with the aspiration lumen(s).
    Type: Application
    Filed: September 17, 2018
    Publication date: March 19, 2020
    Inventors: Stephen Porter, Jon Schabert
  • Publication number: 20200085454
    Abstract: Disclosed is a wrapping cape system which displays favorable grasping characteristics in operations for the entrapment and removal of blocking items in tubular geometries The wrapping cape system yields a configuration that surrounds the blocking item, such as a thrombus, peripherally, thus capturing its body tangentially and allowing the operator to pull it along the surrounding tube (for instance vein or artery) by utilizing shear forces distributed along the surface of the blocking item in its axial direction. The advantage stems from the fact that the blocking item is not pushed from behind during its withdrawal, but pulled instead; also, since there is no penetration, fragmentation is avoided.
    Type: Application
    Filed: March 13, 2017
    Publication date: March 19, 2020
    Inventors: Aristides GOGOUSSIS, Stefanos FINITSIS
  • Publication number: 20200085455
    Abstract: A specimen retrieval device includes a tubular body, an inner shaft slidably positioned within a longitudinal bore of the tubular body, and a specimen bag supported on the distal portion of the inner shaft. The specimen bag includes an open end, a body, a closed portion, and an inner surface, the body of the specimen bag including a plurality of folds between the open end and the closed portion, the plurality of folds being movable from a folded state to an unfolded state to increase a volume of the specimen bag. The specimen bag also includes a release string secured to the plurality of folds, the release string movable from a non-actuated position to an actuated position to sequentially release at least one of the plurality of folds from the folded state to the unfolded state to increase the volume of the bag.
    Type: Application
    Filed: July 22, 2019
    Publication date: March 19, 2020
    Inventor: Sabastian Koduthully George
  • Publication number: 20200085456
    Abstract: Provided are medical devices, systems and methods for retrieval and/or extraction of a corpus located in a tubular organ. Systems of this disclosure are configured for carrying out various procedures for removal of occlusive corpus from tubular organs, for example thrombectomy.
    Type: Application
    Filed: May 31, 2018
    Publication date: March 19, 2020
    Inventors: Noam SHAMAY, Ronen Ariel PLIS, Evyatar SIRABELLA, Hadar BUKAI, Maya KARNIBAD
  • Publication number: 20200085457
    Abstract: A medical device for capturing one or more stone fragments includes a sheath having a proximal end and a distal end, a handle at the proximal end of the sheath, and a basket operable with the handle. The basket includes a plurality of wires that capture the stone fragments and has a collapsed configuration when the basket is positioned within the sheath and an expanded configuration when the basket is positioned beyond the distal end of the sheath. The medical device further includes an indicator that communicates to an operator of the medical device that the size of the stone fragments exceeds a predetermined limit and a release mechanism that releases the stone fragments from the plurality of wires when the size of the stone fragments exceeds the predetermined limit. The plurality of wires are able to reset into an operable position after releasing the stone fragments.
    Type: Application
    Filed: November 20, 2019
    Publication date: March 19, 2020
    Inventors: Judy L. Walish, Lawrence J. St. George, TaiIin Fan
  • Publication number: 20200085458
    Abstract: Disclosed herein shock wave catheters comprising one or more shock wave electrodes for cracking calcifications located within blood vessels. In some variations, a shock wave catheter has first and second shock wave electrodes each circumferentially disposed over the outer surface of the catheter. In certain variations, the first electrode has a recess and the second electrode has a protrusion that is received by the recess and a spark gap is located along the separation between the recess and the protrusion. The second electrode can also have a recess that receives a protrusion from a third shock wave electrode, where the separation between the second and third electrodes along the separation between the recess and the protrusion forms a second spark gap. A shock wave can be initiated across these spark gaps when a voltage is applied over the electrodes.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 19, 2020
    Inventors: Hoa D. NGUYEN, John M. ADAMS
  • Publication number: 20200085459
    Abstract: A system includes a catheter including an elongated carrier, a balloon about the carrier in sealed relation thereto, the balloon being arranged to receive a fluid therein that inflates the balloon, and first and second electrodes within the balloon arranged to carry a voltage there-across including an initial high electrical voltage at an initial low current. The initial high electrical voltage causes an electrical arc to form across the first and second electrodes within the balloon. The electrical arc causes a gas bubble within the liquid, a high current to flow through the first and second electrodes, a decrease in the initial high electrical voltage, and a mechanical shock wave within the balloon. The system further includes a power source that provides the first and second electrodes with a drive voltage that creates the initial high electrical voltage at the initial current and that terminates the drive voltage in response to the decrease in the initial high electrical voltage.
    Type: Application
    Filed: November 25, 2019
    Publication date: March 19, 2020
    Inventor: John M. ADAMS
  • Publication number: 20200085460
    Abstract: Systems, instruments, and methods are described in which an apparatus comprises a housing including a scalpet device. The scalpet device includes a scalpet array that includes scalpets arranged in a pattern. The scalpets are deployable from the housing to generate incised skin pixels at a target site. The housing is positioned and the scalpet array is deployed into tissue at the target site. Incised skin pixels are generated when the target site is a donor site, and skin defects are generated when the target site is a recipient site. The incised skin pixels are harvested.
    Type: Application
    Filed: June 25, 2019
    Publication date: March 19, 2020
    Inventor: Edward KNOWLTON
  • Publication number: 20200085461
    Abstract: Embodiments include devices and methods configured to fractionally resect skin and/or fat. Fractional resection is applied as a stand-alone procedure in anatomical areas that are off-limits to conventional plastic surgery due to the poor tradeoff between the visibility of the incisional scar and amount of enhancement obtained. Fractional resection is also applied as an adjunct to established plastic surgery procedures such as liposuction, and is employed to significantly reduce the length of incisions required for a particular application. The shortening of incisions has application in both the aesthetic and reconstructive realms of plastic surgery.
    Type: Application
    Filed: June 25, 2019
    Publication date: March 19, 2020
    Inventor: Edward KNOWLTON
  • Publication number: 20200085462
    Abstract: An ultrasonic surgical instrument including an ultrasonically actuated blade or end effector having a treatment portion. The blade can define a central axis and at least one axis which is transverse to the central axis, wherein the transverse axis can lie within a plane which is perpendicular, or normal, to the longitudinal axis and can define a cross-section of the treatment portion. Such a cross-section can include a central portion and a step extending from the central portion, wherein the central portion can comprise a width, and wherein the step can comprise a cutting edge. In at least one embodiment, the cutting edge can be defined by first and second surfaces which define an angle therebetween. In various embodiments, the position of the cutting edge and/or the angle between the cutting edge surfaces can be selected in order to balance the blade with respect to the transverse axis.
    Type: Application
    Filed: September 20, 2019
    Publication date: March 19, 2020
    Inventor: Galen C. Robertson
  • Publication number: 20200085463
    Abstract: A steerable transseptal punch system and method of using the steerable transseptal punch system to access the left atrium.
    Type: Application
    Filed: November 25, 2019
    Publication date: March 19, 2020
    Applicant: Indian Wells Medical, Inc.
    Inventors: Jay A. Lenker, Scott Louis Pool
  • Publication number: 20200085464
    Abstract: A system, delivery device and method delivers ultrasonic energy to a target musculoskeletal tissue site. In some embodiments, the delivery device includes a monolithic stainless steel needle and horn.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 19, 2020
    Inventors: Tate Ray Parham, Brad Buzea
  • Publication number: 20200085465
    Abstract: Ultrasonic surgical instruments including a handle housing, a switch frame, and a switch assembly are disclosed. The switch assembly may include a first switch arrangement movably supported on a distal portion of the handle housing and selectively movable relative to a first switch contact supported by the switch frame. The switch assembly may further include a second switch arrangement including a right switch button movably supported on a right side of the handle housing and selectively movable relative to a right switch contact supported by the switch frame, and a left switch button movably supported on a left side of the handle housing and selectively movable relative to a left switch contact supported by the switch frame. The first and second switch arrangements may be configured to be selectively actuatable by a single hand supporting the handle housing.
    Type: Application
    Filed: November 25, 2019
    Publication date: March 19, 2020
    Inventors: Richard W. Timm, Daniel W. Price, Jeffery T. Kirk, Jose Domingo Vasquez, Timothy G. Dietz, Richard D. Smith, Ryan M. Asher, Jeffrey L. Aldridge, Craig T. Davis, Emron J. Henry, James W. Voegele, Gregory W. Johnson
  • Publication number: 20200085466
    Abstract: An ultrasonic clamp coagulator assembly that is configured to permit selective cutting, coagulation and clamping of tissue during surgical procedures. An elongated portion of the instrument can be configured for endoscopic applications and has an outside diameter of less than 6 mm. The construction includes a clamping mechanism, including a clamp arm pivotally mounted at the distal portion of the instrument, which is specifically configured to create a desired level of tissue clamping forces, exceeding 4 pounds when the trigger is fully closed. The clamping mechanism includes a force-limiting mechanism that effectively smooths out abusive tissue forces.
    Type: Application
    Filed: September 23, 2019
    Publication date: March 19, 2020
    Inventors: Craig N. Faller, Kevin L. Houser, Mark A. Neurohr
  • Publication number: 20200085467
    Abstract: A tissue retractor comprising an outer ring, an inner ring, and a flexible, metal sheath extending therebetween is described. Embodiments of the inner ring comprise a flat or wedge-shaped conformation useful for insertion between muscle layers. Other embodiments of the inner ring include variable diameter inner rings, where the diameter can be adjusted as required and optionally locked into place, and reshapeable inner rings that permit a user to conform the inner ring to the anatomy of the patient when placing the inner ring.
    Type: Application
    Filed: June 27, 2019
    Publication date: March 19, 2020
    Inventors: Jeremy J. Albrecht, Eric Nguyen, Matthew M. Becerra, Gary M. Johnson, John R. Brustad, Ghassan Sakakine
  • Publication number: 20200085468
    Abstract: A perianal support device is provided that is configured to inhibit the formation and/or progression of tissue damage in the perianal region of the body. A method is provided to apply the perianal support device to patients during childbirth to inhibit the formation and/or progression of tissue damage in the perianal region of the body.
    Type: Application
    Filed: November 18, 2019
    Publication date: March 19, 2020
    Inventors: David Dwayne Blurton, Hai H. Trieu
  • Publication number: 20200085469
    Abstract: This invention relates generally to a medical device, and more specifically, to a vaginal surgical apparatus. In one embodiment, a vaginal device includes, but is not limited to, a shaft, the shaft including at least a space to at least partially accommodate a cervix; and a slot to secure a tenaculum; and a stopper that is positionably adjustable along at least a portion of a length of the shaft.
    Type: Application
    Filed: November 20, 2019
    Publication date: March 19, 2020
    Applicant: Freshwater Bay Industries, LLC
    Inventor: Mark Edmund Richey
  • Publication number: 20200085470
    Abstract: Devices and methods for dermatology and more particularly to fluid enhanced skin treatment system for skin rejuvenation that can use an abrasive probe for removing epidermal layers while contemporaneously providing for the infusion of therapeutic fluids into the skin.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 19, 2020
    Inventor: John H. SHADDUCK
  • Publication number: 20200085471
    Abstract: A spinal correction system includes a tensioning member and a fulcrum tensioner device including a housing defining a chamber having a biasing member therein and a camming pin operatively coupled with the biasing member. The tensioning member is configured to be received in the biasing member and looped around the camming pin, such that a first end of the tensioning member is oriented in a first direction and a second end of the tensioning member is oriented in a second direction. The camming pin is transitionable between an extended position in which the biasing member applies tension to the tensioning member and a retracted position in which the biasing member is compressed to inhibit application of tension to the tensioning member.
    Type: Application
    Filed: January 19, 2017
    Publication date: March 19, 2020
    Inventor: Larry McClintock
  • Publication number: 20200085472
    Abstract: A dynamic fixation medical implant includes a longitudinal connecting member assembly having an elongate coil-like outer member and an inner cylindrical core attached to the outer member at only one end thereof. Some assemblies include a second longitudinal connecting member in the form of a rod that is fixed to the inner core and extends outwardly from the assembly. Certain assemblies include a threaded core or threaded inserts that cooperate with a helical slit of the coil-like outer member. Two or more cooperating bone screw assemblies attach to the connecting member assembly. The bone screw assemblies may include upper and lower compression members for affixing to and cradling the coil-like outer member only, allowing relative movement between the outer member and the inner cylindrical core. Press fit or snap-on features attach one end of the coil-like outer member to one end of the inner cylindrical core.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 19, 2020
    Inventor: Roger P. Jackson
  • Publication number: 20200085473
    Abstract: Implant connectors and related methods are disclosed herein. In some embodiments, a connector can include a low-profile portion to facilitate use of the connector in surgical applications where space is limited. In some embodiments, a connector can include a biased rod-pusher to allow the connector to “snap” onto a rod and/or to “drag” against the rod, e.g., for provisional positioning of the connector prior to locking.
    Type: Application
    Filed: November 19, 2019
    Publication date: March 19, 2020
    Applicant: Medos International Sarl
    Inventors: Kevin Lee, Christopher Ramsay, J. Riley Hawkins
  • Publication number: 20200085474
    Abstract: A stabilization system and implant for preventing relative motion between tissue sections of a patient, for example, an ilium and a sacrum defining a sacroiliac joint. The stabilization system comprises an implant comprising an elongate trunk, a proximal anchor configured to be positioned within the ilium, and a distal anchor configured to be positioned within the sacrum. The proximal anchor comprises a deformable feature configured to engage the ilium and the distal anchor comprises an expandable member configured to engage the sacrum. The stabilization system further comprises a tool removably coupled to the anchor to insert the implant in the patient and selectively engage the anchors with the respective bones. The implant is configured to be implanted through a minimally invasive incision.
    Type: Application
    Filed: April 20, 2018
    Publication date: March 19, 2020
    Applicant: Stryker Corporation
    Inventors: Gabriel Harshman, Christopher Brockman
  • Publication number: 20200085475
    Abstract: A spinal joint distraction system for treating a facet joint including articular surfaces having a contour is disclosed and may include a delivery device including a generally tubular structure adapted to engage a facet joint, an implant adapted to be delivered through the delivery device and into the facet joint, the implant comprising two members arranged in opposed position, and an implant distractor comprising a generally elongate member adapted to advance between the two members of the implant causing separation of the members and distraction of the facet joint, wherein the implant is adapted to conform to the shape of the implant distractor and/or the articular surfaces of the facet upon being delivered to the facet joint. Several embodiments of a system, several embodiments of an implant, and several methods are disclosed including a method for interbody fusion.
    Type: Application
    Filed: September 24, 2019
    Publication date: March 19, 2020
    Inventors: Bruce M. McCormack, Jeffrey D. Smith, Shigeru Tanaka, Edward Liou, Edward Fletcher Eyster, Jonathan Carver, Joshua Druker, Martin Leugers, Kurin Tu, Peter Lombrozo
  • Publication number: 20200085476
    Abstract: An implant assembly for a human sternum and ribs can include a sternal implant and a rib link. The sternal implant can be couplable to a sternum. The rib link can include a distal portion, a proximal portion, and a strut. The distal portion can be couplable to a rib. The proximal portion can be couplable to the sternal implant. The strut can connect the distal portion to the proximal portion. The strut can be configured to flex so that the distal portion can be aligned with the rib.
    Type: Application
    Filed: November 20, 2019
    Publication date: March 19, 2020
    Inventors: Zach Frank, Anish Vaghela, Scott Sidwell, Ryan Luby, Kyle Icke
  • Publication number: 20200085477
    Abstract: The present disclosure describes a bone screw for use in orthopedic procedures. The bone screw includes a shank portion having a helical thread and a head portion also having a helical thread. The head portion has a reverse frustoconical shape, with the conical taper decreasing in the proximal direction.
    Type: Application
    Filed: September 13, 2019
    Publication date: March 19, 2020
    Inventor: Neal Blitz
  • Publication number: 20200085478
    Abstract: A fixation assembly includes an anchor, a cam, and a shaft. The anchor defines a longitudinal axis and includes a spine that extends along the longitudinal axis. The spine has a first projection and a second projection that extend from the spine in a direction transverse to a longitudinal axis. The anchor defines a slot between the first and second projections. The cam is disposed with the slot and is positioned to rotate about the longitudinal axis between first and second positions to enable the first and second projections and the cam to secure the anchor to osseous tissue. The shaft is rotatably disposed within the anchor and positioned to rotate the cam between the first and second positions. In the first position, the cam is aligned with the first and second projections, and in the second position, the cam is misaligned with the first and second projections.
    Type: Application
    Filed: February 21, 2017
    Publication date: March 19, 2020
    Inventor: Larry McClintock
  • Publication number: 20200085479
    Abstract: A device for mixing and dispensing bone material is provided. The device comprises a tubular member having an interior surface configured to receive bone material and a fluid to mix the bone material disposed within the tubular member. The tubular member is flexible and has a proximal opening configured to slidably receive a plunger, and a distal opening configured to dispense a mixed bone material from the interior surface of the tubular member. The plunger is less flexible than the tubular member. Methods of mixing and dispensing bone material are also provided.
    Type: Application
    Filed: September 13, 2018
    Publication date: March 19, 2020
    Inventors: Jonathan M. Dewey, Daniel Shimko
  • Publication number: 20200085480
    Abstract: An improved method of fusing the sacroiliac joint and tools for accomplishing the same is disclosed. In one embodiment, the present invention is a method that uses an intra-articular joint fusion device for connecting the sacrum and ilium that includes creating a first incision in the patient's skin proximal to the patient's sacroiliac joint, inserting a surgical channel tool into the incision from the patient's posterior, creating a void in the sacroiliac joint, inserting a fusion implant into the void, the fusion implant having at least one fixation element for engagement with bone tissue in the articular surfaces of the sacrum and the ilium, and driving the fusion implant into the void such that the at least one fixation element engages with bone tissue in an articular surface of at least one of the sacrum and ilium, and the fusion implant fixes relative positions of the sacrum and ilium.
    Type: Application
    Filed: November 19, 2019
    Publication date: March 19, 2020
    Inventors: Troy Schifano, Steve Anderson, Teck-Mun Soo, Gowriharan Thaiyananthan
  • Publication number: 20200085481
    Abstract: An endosteal guide pin for preparing a guide path for the implantation of a pedicle or orthopaedic screw into a patient's bone. The pin has a head intended to be provisionally implanted in a bone and a guide rod, coaxial with and rigidly secured to the head, ending in a free end intended to be at least level with the skin surface of the patient when the pin is in the implanted position in the bone. The pin has a first coupling part intended at least to secure the pin to and release the pin from at least one portion of a positioning trocar and a second coupling part intended at least to secure the pin to a removal trocar. Also, a trocar for positioning a guide pin, which trocar incorporates the guide pin, and to a trocar for removing the pin.
    Type: Application
    Filed: March 15, 2018
    Publication date: March 19, 2020
    Applicant: HIRONDELLE MEDICAL
    Inventors: Eric DECOUX, Nguyen-Thanh Denis HOA
  • Publication number: 20200085482
    Abstract: A catheter is provided comprising a flexible heat transfer element provided on an outer surface of the catheter. The catheter further comprises a conduit arranged to supply an inflation fluid for inflating the flexible heat transfer element so as to form an inflated balloon, and a plurality of cooling elements arranged to cool said inflation fluid for inflating the balloon. Each cooling element comprises a first tube provided inside a second tube, wherein the first tube is substantially parallel to the second tube. The second tube is configured to receive a flow of a coolant for cooling the cooling element from the first tube.
    Type: Application
    Filed: November 16, 2016
    Publication date: March 19, 2020
    Inventors: Maurice Buchbinder, Madison Stewart Fox, Domenic Santoianni, Peter Kyone Park
  • Publication number: 20200085483
    Abstract: The instant disclosure relates to electrophysiology catheters for tissue ablation within a cardiac muscle. In particular, the instant disclosure relates to an ablation balloon and catheter shaft that deflects to conform to a shape of a target pulmonary vein receiving ablation therapy for a cardiac arrhythmia, for example. The deflection of the catheter shaft enables a lesion line along a circumference of the target pulmonary vein with improved consistency.
    Type: Application
    Filed: December 4, 2017
    Publication date: March 19, 2020
    Inventors: Troy T. Tegg, Gregory K. Olson
  • Publication number: 20200085484
    Abstract: The instant disclosure relates to electrophysiology catheters for tissue ablation. In particular, the instant disclosure relates to a cryogenic ablation balloon with safety features that facilitate identification of a leak into an interstitial space between inner and outer balloons as part of the ablation balloon catheter assembly, and prevents egress of cryogenic fluid out of the ablation balloon.
    Type: Application
    Filed: December 5, 2017
    Publication date: March 19, 2020
    Inventors: Troy T. Tegg, Salome A. Gonzalez, Derek Sutermeister
  • Publication number: 20200085485
    Abstract: Cryosurgical devices, such as cryosurgical probes (cryoprobes) are disclosed. Some example embodiments may include an elongated shaft at least partially housing or delineating a fluid supply conduit and a fluid exhaust conduit, the elongated shaft including a distal ablation section terminating at a closed distal end, a housing at least partially circumscribing at least a portion of a proximal end of the elongated shaft and receiving or delineating at least a portion of the fluid supply conduit and a portion of the fluid exhaust conduit; and/or a flow restricting element in fluid communication with the fluid exhaust conduit, the flow restricting element regulating the flow of fluid through at least a portion of the fluid exhaust conduit.
    Type: Application
    Filed: September 13, 2019
    Publication date: March 19, 2020
    Applicant: AtriCure, Inc.
    Inventors: Stefan Skorich, David Wilson, Todd Frangolis, Christopher Widenhouse, Frank Fago
  • Publication number: 20200085486
    Abstract: A method of using a cryotherapeutic system in accordance with a particular embodiment includes advancing an elongate shaft of a catheter toward a treatment location within a body lumen of a human patient and directing a flow of refrigerant toward a cryotherapeutic element at a distal end portion of the shaft. The directed refrigerant is expanded to cause cooling within a balloon of the cryotherapeutic element. The pressure within the balloon is monitored and its rate of change calculated. The rate of change is then processed using different feedback loops during different monitoring windows of a treatment cycle. The individual feedback loops include an upper and a lower threshold and are configured to cause the flow of refrigerant to the cryotherapeutic element to stop if the rate of change falls outside a range between the upper and the lower threshold.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 19, 2020
    Inventors: Micheal Moriarty, Brian Kelly
  • Publication number: 20200085487
    Abstract: A system and method for use with an electrosurgical system for delivering energy to tissue wherein the system includes a generator having a maximum power, at least two channels, and a plurality of probes. The method includes a control system allocating power proportionally to the plurality of probes whereby the probes reach a predetermined threshold without significant delays.
    Type: Application
    Filed: December 21, 2017
    Publication date: March 19, 2020
    Inventors: Neil Godara, Michael Same, Ahmad Khayer Dastjerdi
  • Publication number: 20200085488
    Abstract: An electrosurgical generator having connectors for an electrosurgical instrument including a high-voltage generator electrically connected to the connectors and produces a high-frequency alternating current in its activated state and output said high-frequency alternating current via the connectors. The electrosurgical generator has an effective power determination unit including a phase shift determination unit that supplies an output signal representing a phase shift between the current and the voltage of an alternating current output during operation. The phase shift determination unit produces a pulsed DC voltage signal, in which the pulse width reflects a time difference between the zero crossings of the current and the voltage—and consequently the phase shift—and to process the pulsed DC voltage signal by way of a low-pass filter to form a low-pass filter output signal, the magnitude of which depends on the pulse width of the pulses of the pulsed DC voltage signal.
    Type: Application
    Filed: June 6, 2018
    Publication date: March 19, 2020
    Applicant: OLYMPUS WINTER & IBE GMBH
    Inventors: Daniel RAMIN, Thomas FÄHSING, Stefan SCHIDDEL
  • Publication number: 20200085489
    Abstract: A surgical system that illuminates a surgical site using one or more illumination means is powered by radiofrequency energy produced by an electrosurgical generator. Illumination may occur whether or not current is being delivered from an active electrode to target tissue.
    Type: Application
    Filed: November 18, 2019
    Publication date: March 19, 2020
    Inventors: Warren P. Heim, Alex Vayser, David Wayne, Jason Hegener
  • Publication number: 20200085490
    Abstract: Provided is a high-frequency thermal therapy device, and includes an electrode for cauterizing a target lesion, a radio frequency generator for generating a radio frequency current, and a switch for opening and closing an electric circuit extending from the radio frequency generator to the electrode. A cauterization length of the electrode may be changed according to an operation of the switch. As a result, it is possible to prevent a normal area around the target lesion from being damaged, facilitate the treatment, and reduce cost for cauterization an equipment.
    Type: Application
    Filed: October 13, 2017
    Publication date: March 19, 2020
    Inventors: Kyung Hoon SHIN, Hyuk LIM
  • Publication number: 20200085491
    Abstract: An electrosurgical apparatus including a robotic tip is provided. The electrosurgical apparatus includes a plurality of actuators and hinging members. The robotic tip includes a retractable electrode. The actuators are coupled to the hinging members via a plurality of pulling mechanisms, such that, one or more of the actuators is rotated to selectively pull one or more of the plurality of pulling mechanisms to pivot and rotate the robotic tip and/or extend and retract the electrode. The electrode is coupled to a gas source and an energy source, such that, the electrode can produce plasma for use in surgical applications.
    Type: Application
    Filed: May 29, 2018
    Publication date: March 19, 2020
    Inventors: Gregory Goliszek, Shawn D. Roman
  • Publication number: 20200085492
    Abstract: A surgical clamp including a pair of jaws, which may be used to ablate or create lesions in tissue. in an exemplary embodiment, the jaws are movable between an articulated position in which the jaws are separated and not parallel to one another, an opened position in which the jaws are separated and substantially parallel to one another, and a closed position in which the jaws are adjacent and substantially parallel to one another.
    Type: Application
    Filed: September 25, 2019
    Publication date: March 19, 2020
    Applicant: AtriCure, Inc.
    Inventors: James David Hughett, SR., Salvatore Privitera
  • Publication number: 20200085493
    Abstract: An irrigated needle electrode ablation catheter has a distal tip section with a tip electrode, a needle electrode assembly longitudinal movable relative to the catheter, and a needle centering insert in a channel in the tip electrode. The assembly has a proximal tubing and a distal needle electrode, and the insert supports the needle electrode in the channel at a predetermined separation distance from the tip electrode while enabling irrigation to flow circumferentially around the needle electrode through the channel and exit at the distal end of the tip electrode. The catheter also provides a first dedicated fluid pathway through the assembly and exits at the distal end of the needle electrode, and a second dedicated fluid pathway to supply fluid to the channel in the tip electrode, wherein the second pathway is defined by a guide tube and directed by a plunger member.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 19, 2020
    Inventors: Christopher Beeckler, Athanassios Papaioannou, Rowan Hettel, Maribeth Esguerra Wilczynski
  • Publication number: 20200085494
    Abstract: The present invention describes device, method and system for providing treatment for swollen vascular structures located in a body canal of a patient. The device, method and system described in here provide an easy and, practical treatment and with minimal or without disturb to the patient, including RF emission driven directly and specifically over such vascular structure, and by means of ultrasound technology verify the position of the vascular structure and whether it is closed before, during and after the RF application. The present invention is situated in the field of medical science, more precisely in treatment of vascular structures, and medical devices.
    Type: Application
    Filed: March 19, 2018
    Publication date: March 19, 2020
    Applicant: BE MEDICAL TECHNOLOGY CORP
    Inventors: Enio Chaves De OLIVEIRA, Mauro BAFUTTO
  • Publication number: 20200085495
    Abstract: Systems, delivery devices, and methods to treat to ablate, damage, or otherwise affect tissue. The treatment systems are capable of delivering a coolable ablation assembly that ablates targeted tissue without damaging non-targeted tissue. The coolable ablation assembly damages nerve tissue to temporarily or permanently decrease nervous system input. The system, delivery devices, and methods can damage tissue and manage scarring and stenosis.
    Type: Application
    Filed: July 29, 2019
    Publication date: March 19, 2020
    Inventors: Steven C. Dimmer, Martin L. Mayse, Mark E. Deem, Hanson S. Gifford
  • Publication number: 20200085496
    Abstract: Cardiac ablation catheters include an outer balloon positioned at a distal end of the catheter and configured to have an inner balloon disposed therein. The outer balloon is inflated with a first fluid that has a temperature less than 100 degrees Celsius, while the inner balloon is inflated with heated vapor. An area of contact between the two balloons, comprising a surface area less than the total surface area of either balloon, creates a hot zone for ablating cardiac tissue through the transfer of thermal energy from the contact area to the cardiac tissue.
    Type: Application
    Filed: September 11, 2019
    Publication date: March 19, 2020
    Inventors: Virender K. Sharma, Kevin Holbrook, Holger Friedrich, Eric Steven Fain
  • Publication number: 20200085497
    Abstract: The subject of this disclosure includes systems, devices and methods to treat a predetermined patient population for paroxysmal atrial fibrillation, the method including ablating tissue of one or more targeted pulmonary veins with one or more of a plurality of the electrodes of an independently controlled multi-electrode radiofrequency balloon catheter, the balloon catheter comprising the plurality of electrodes for radiofrequency ablation that are independently controllable; determining a predictor, based on ablation parameters of the balloon catheter, of single shot pulmonary vein isolation (PVI) success rate; and achieving, based on the predictor and step of ablating tissue, a single shot isolation PVI success rate in the isolation of all targeted pulmonary veins for the predetermined patient population.
    Type: Application
    Filed: September 12, 2019
    Publication date: March 19, 2020
    Applicant: Biosense Webster (Israel) Ltd.
    Inventors: Xiangming ZHANG, Nader GHALY, Eid ADAWI, Moe Habib BISHARA, Kendra Anita MCINNIS, Assaf GOVARI, Christopher Thomas BEECKLER, Joseph Thomas KEYES, Rowan Olund HETTEL, Kevin Justin HERRERA
  • Publication number: 20200085498
    Abstract: A sub-microsecond pulsed electric field generator is disclosed. The field generator includes a controller, which generates a power supply control signal and generates a pulse generator control signal, and a power supply, which receives the power supply control signal and generates one or more power voltages based on the received power supply control signal. The field generator also includes a pulse generator which receives the power voltages and the pulse generator control signal, and generates one or more pulses based on the power voltages and based on the pulse generator control signal. In some embodiments, the controller receives feedback signals representing a value of a characteristic of or a result of the pulses and generates at least one of the power supply control signal and the pulse generator control signal based on the received feedback signals.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Applicant: Pulse Biosciences, Inc.
    Inventors: Shu Xiao, Brian G. Athos, Mark P. Kreis, David J. Danitz, Darrin R. Uecker
  • Publication number: 20200085499
    Abstract: The present invention provides a handheld device and method for treating an artery having atherosclerosis. The handheld device for treating an artery comprises a handle for holding the device, an effector adapted to the handle for carrying out the treatment on the arteries, said effector having an ablating means, and a feedback controller for controlling process of treatment. Advantageously, the device allows for treating the artery without invasion of the blood vessel lumen, without damaging the tunica intima of the artery, and more importantly, the device can be used for treating early and mid-stage plaque formation in the arterial wall, which goes undetected in routine angiography.
    Type: Application
    Filed: August 2, 2016
    Publication date: March 19, 2020
    Inventor: Ajoy I. Singh