Patents Assigned to Datascope Corp.
  • Publication number: 20190298381
    Abstract: A surgical applicator for a fastener, the surgical applicator comprising: a handle; a trigger movable relative to the handle between an initial position, an actuated position, and an intermediate position between the initial position and the actuated position; and a lockout mechanism movable relative to the trigger between a locked position and an unlocked position, the lockout mechanism operatively arranged to: lock the trigger in the intermediate position when the trigger is moved from the initial position toward the actuated position; and permit movement of the trigger from the intermediate position toward the initial position or the actuated position when the lockout mechanism is moved from the locked position to the unlocked position.
    Type: Application
    Filed: March 27, 2019
    Publication date: October 3, 2019
    Applicant: DATASCOPE CORP.
    Inventors: Marc KREIDLER, Juan PEREZ, Joseph LAMBERTI, Ashik MOHAN
  • Patent number: 10349935
    Abstract: Devices, systems, and methods for closing the base of a left atrial appendage or other tissue structure comprise a device applicator having jaws, a shaft, and a handle. First and second triggers on a handle are configured to close the jaws and a closure device in a step-wise manner where tissue penetrating fasteners within the closure device are engaged by studs on the jaws, where the studs must be released prior to the opening of the jaws.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: July 16, 2019
    Assignee: DATASCOPE CORP.
    Inventors: Ashik A. Mohan, William K. Wheeler
  • Publication number: 20160296233
    Abstract: The present disclosure relates to a fastener applicator including a handle, a first trigger coupled rotatably with respect to the handle, and a second trigger coupled rotatably with respect to the handle. An interlock is disposed with the second trigger and comprises a cam follower engaged in a cam channel that selectively prevents rotation of the second trigger relative to the first trigger depending on a location of the cam follower within the cam channel. The location of the cam follower in the cam channel is set by a position of the first trigger. Methods of operating the various embodiments disclosed are also provided.
    Type: Application
    Filed: November 19, 2014
    Publication date: October 13, 2016
    Applicant: DATASCOPE CORP.
    Inventors: William K. WHEELER, Ashik A. MOHAN
  • Publication number: 20160270784
    Abstract: Apparatus, systems, and methods are described for closing the base of a left atrial appendage or other tissue structure. A tissue closure device comprises a pair of legs having compliant surfaces for engaging against opposite sides of the tissue structure. A plurality of axially spaced-apart tissue-penetrating fasteners are delivered from one leg to the other to pierce the intervening tissue and hold the closure device in place on the tissue structure.
    Type: Application
    Filed: May 26, 2016
    Publication date: September 22, 2016
    Applicant: DATASCOPE CORP.
    Inventors: William K. WHEELER, Ashik A. MOHAN
  • Patent number: 9375218
    Abstract: Apparatus, systems, and methods are described for closing the base of a left atrial appendage or other tissue structure. A tissue closure device comprises a pair of legs having compliant surfaces for engaging against opposite sides of the tissue structure. A plurality of axially spaced-apart tissue-penetrating fasteners are delivered from one leg to the other to pierce the intervening tissue and hold the closure device in place on the tissue structure.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: June 28, 2016
    Assignee: DATASCOPE CORP.
    Inventors: William K. Wheeler, Ashik A. Mohan
  • Patent number: 5824036
    Abstract: A stent graft device for use with a insertion catheter for repair of defects in arteries and other lumens within the body. The stent graft is expandable upon deployment and during deployment the stent graft is retained in a smooth and set position within the artery.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: October 20, 1998
    Assignee: Datascope Corp
    Inventor: Karl L. Lauterjung
  • Patent number: 5685858
    Abstract: A catheter gard unit is disclosed herein which includes a flexible tapered introduction guide. The distal end of the tapered introduction guide, in a sheath procedure, is placed over a guide wire and into a sheath, both of which have been pre-placed within a patient's body. In a sheathless procedure, the distal end of the tapered introduction guide is placed adjacent the skin of the patient and over the pre-placed guide wire. The gard unit comprises a body with a passageway therethrough for the passage of the catheter tube. A resilient slidable seal is mounted upon the tapered introduction guide of the gard unit. The slidable seal is adapted to slid over and seal the connection between the introduction guide, through which the catheter is placed, and a hemostasis valve of the sheath, after insertion of the sheath into the patient's body and thereby form a liquid seal between the introduction guide and the sheath.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: November 11, 1997
    Assignee: Datascope Corp.
    Inventor: John George Kawand
  • Patent number: 4819752
    Abstract: A blood constituent measuring apparatus and method, which can be used to measure the oxygen (or other blood constituent) content of the blood. The apparatus includes sources of two or more wavelengths of light for transmitting, e.g., red and infrared light through a portion of the body, and a photodetector for generating respective signals representing each wavelength of light transmitted through the body portion. The photodetector signals have pulsatile and non-pulsatile components. The oxygen content of the blood is computed based on the light transmitted through the body portion at each wavelength, as determined from the pulsatile component, amplified alone after the much larger non-pulsatile component is subtracted from it. The apparatus can compute the oxygen content of patients with weak pulses, or unstable physiological states, or both, by using, preferably, a plurality of independently settable gains, to maintain the signal level within a range suitable for accurate measurement.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: April 11, 1989
    Assignee: Datascope Corp.
    Inventor: Michael P. Zelin
  • Patent number: 4631059
    Abstract: A hollow, open-ended sheath is removed from a position enclosing a catheter which has been inserted through the sheath with a close tolerance and introduced into a human body thereby. A cutting blade is mounted in a deforming and guiding mechanism connected to the blade and engageable with the sheath for exerting pressure on the sheath in such a manner as to deform the sheath away from the catheter at a point immediately adjacent to the cutting blade and into contact with the cutting blade while maintaining the catheter beyond the reach of the blade. The device guides the blade for lengthwise movement relative to the sheath. The blade cuts the sheath in a lengthwise direction for removal from the catheter while the catheter remains in place.
    Type: Grant
    Filed: March 26, 1985
    Date of Patent: December 23, 1986
    Assignee: Datascope Corp.
    Inventors: Sidney Wolvek, Walter Kaiser, Kenneth Kaltenbach
  • Patent number: 4540404
    Abstract: A balloon catheter comprises a tip having a tapered distal end, a central lumen, and a balloon membrane coaxial with and surrounding the central lumen and connected to the tip. A sheath is slidable over the balloon to form an assembly, and a guide wire is slidable through the central lumen and insertable into a blood vessel for guiding the tip, membrane and sheath to a location within the blood vessel selected for therapy. The sheath fits loosely over the balloon, whereby the sheath can be withdrawn to expose the balloon at the selected location and the balloon can then be inflated to provide therapy.
    Type: Grant
    Filed: January 19, 1983
    Date of Patent: September 10, 1985
    Assignee: Datascope Corp.
    Inventor: Sidney Wolvek
  • Patent number: 4539999
    Abstract: Disclosed herein is a pacer signal reject circuit wherein an entire ECG waveform signal is applied to one input of an operational amplifier, while only the initial portion of the pacer signal including the main pulse and a portion of the tail, is applied to the second input of such operational amplifier, to cause cancellation of that initial portion from the ECG signal. Also, a synthesized version of the remainder of such pacer tail is generated and applied to the second input. Thus, by isolating the ECG signal from the second input except for a timed period of the pacer signal, and by applying the synthesized tail signal to such second input, the entire pacer signal may be cancelled.
    Type: Grant
    Filed: July 22, 1983
    Date of Patent: September 10, 1985
    Assignee: Datascope Corp.
    Inventor: Thomas A. Mans
  • Patent number: 4402307
    Abstract: An intra-aortic balloon adapted to be percutaneously inserted into a blood vessel in which the balloon and its support member are twisted as the balloon envelope is wrapped around its support member before insertion into the vessel to reduce the diameter of the balloon envelope. The support member is twisted as the balloon is wrapped, thereby storing energy which, urges the unwrapping of the balloon in the vessel. In one embodiment, the support member is hollow to permit a guide wire to pass there-through so that placement of the balloon within the human body may be done with greater precision and the hollow support member permits the injection of a radiopaque fluid so that the balloon can be viewed within the vessel, thereby assisting in the placement of the balloon. In another embodiment, a solid energy storage support member with a highly flexible distal portion provides an intra-aortic balloon of enhanced pliability.
    Type: Grant
    Filed: October 31, 1980
    Date of Patent: September 6, 1983
    Assignee: Datascope Corp.
    Inventors: Bruce L. Hanson, Sidney Wolvek
  • Patent number: 4346698
    Abstract: An inflatable and deflatable balloon catheter is disclosed. The inflatable chamber of the catheter is supported about an elongated support member of small diameter. One or both ends of the support member are rotatably disposed relative to the chamber wherein the chamber is adapted to being compactly twisted about the support member upon twisting, rolling or wrapping the chamber. The compactly twisted chamber has a small diameter whereby insertion of the catheter through a small incision and guiding thereof in a small body canal or passage is facilitated. A smooth-walled sheath of low friction material is disclosed for enclosing the twisted chamber to facilitate atraumatic entry of the catheter into the incision or body opening and for facilitating insertion and movement of the catheter. Balloon catheters according the present invention are advantageously used for intra-aortic balloon pumping.
    Type: Grant
    Filed: May 20, 1980
    Date of Patent: August 31, 1982
    Assignee: Datascope Corp.
    Inventors: Bruce L. Hanson, Sidney Wolvek
  • Patent number: 4327709
    Abstract: Apparatus and method for the percutaneous insertion of intra-aortic balloons into the human body wherein a sheath is provided which can be inserted into an artery through a puncture, and an intra-aortic balloon of a size sufficiently small and having sufficient flexibility is used which can be moved through the sheath into the artery. The apparatus and method includes, puncturing the skin into the artery until a needle means having a bore, introducing a guide wire into the artery through the needle means, advancing a dilator-sheath set over the wire to enlarge the puncture and to place an end of the sheath within the artery, withdrawing the dilator and guide wire and then inserting the balloon through the sheath.
    Type: Grant
    Filed: October 18, 1979
    Date of Patent: May 4, 1982
    Assignee: Datascope Corp.
    Inventors: Bruce L. Hanson, Sidney Wolvek
  • Patent number: 4276874
    Abstract: Inflatable and deflatable balloon catheters are disclosed. Catheters according to the invention have an expansion chamber that may be elongated to reduce its radial dimension without producing oblique or transverse folds or wrinkles. The inflatable chamber of the catheter is supported by an elongated support member of small diameter which has a continuously extending opening therein through which fluid is admitted to and withdrawn from the chanber. An axially movable elongating member is disposed within the expansion chamber for elongating the chamber. Axial movement of the elongating member elongates the chamber to decrease its radial dimension whereby feeding and guiding of the catheter is facilitated. In one embodiment, the support member is the gas supply tube extending into the chamber and the continuously extending opening is a helical slit running along at least part of the tube enclosed by the chamber.
    Type: Grant
    Filed: November 15, 1978
    Date of Patent: July 7, 1981
    Assignee: Datascope Corp.
    Inventors: Sidney Wolvek, Bruce L. Hanson
  • Patent number: 4261339
    Abstract: An inflatable and deflatable balloon catheter is disclosed. The inflatable chamber of the catheter is supported about an elongated support member of small diameter. One end of the support member is rotatable relative to the chamber wherein the chamber is adapted to being compactly twisted about the support member upon swiveling or rotation of the support member. The compactly twisted chamber has a small diameter whereby insertion of the catheter through a small incision and guiding thereof in a small body canal or passage is facilitated. A smooth-walled sheath of low friction material is disclosed for enclosing the twisted chamber to facilitate atraumatic entry of the catheter into the incision or body opening and for facilitating insertion and movement of the catheter. The support member is preferably made of a material which may be formed during use into a desired axial configuration by bending. Balloon catheters according to the present invention are advantageously used for intra-aortic balloon pumping.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: April 14, 1981
    Assignee: Datascope Corp.
    Inventors: Bruce L. Hanson, Sidney Wolvek