Patents by Inventor Gene Samson

Gene Samson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5702373
    Abstract: This is a surgical device. In particular, it is a composite catheter assembly suitable for accessing a tissue target within the body, typically a target which is accessible through the vascular system. Central to the invention is the presence in the catheter assembly of a catheter section having a braided metallic reinforcing member, typically of superelastic alloy ribbon, situated within the reinforced catheter section in such a way to create a catheter having an exceptionally thin wall, controlled stiffness, high resistance to kinking, and complete recovery in vivo from kinking situations. The braid may have a single pitch or may vary in pitch along the axis of the catheter or catheter section. The braided ribbon reinforcing member typically is placed between a flexible outer tubing member and an inner tubing member to produce a catheter section which is very flexible but highly kink resistant.
    Type: Grant
    Filed: August 31, 1995
    Date of Patent: December 30, 1997
    Assignee: Target Therapeutics, Inc.
    Inventor: Gene Samson
  • Patent number: 5695483
    Abstract: This invention is a surgical device. In particular, it is a catheter suitable for treating a tissue target within the body, which target is accessible through the vascular system. Central to the invention is the use of stiffener ribbons, typically metallic, wound within the catheter body in such a way as to create a catheter having controllable stiffness.
    Type: Grant
    Filed: August 17, 1995
    Date of Patent: December 9, 1997
    Assignee: Target Therapeutics Inc.
    Inventor: Gene Samson
  • Patent number: 5685322
    Abstract: A method and system for treating a patient's heart exhibiting arrhythmia by first detecting electrical activity within the patient's heart to determine the location of the arrhythmogenic site or conductive pathway causing the arrhythmia and then creating an infarct within the region of the patient's heart where the arrhythmogenic site or the conductive pathway causing the arrhythmia is located by delivering an occluding element to a coronary artery which delivers oxygenated blood to said region of the patient's heart. In one presently preferred embodiment the occluding element is a flaccid or limp coil which when disposed in a coronary arterial passageway forms a randomly shaped, intertwined mass which quickly forms thrombus within the coronary artery to block the passage of oxygenated blood therethrough. The flaccid coil may be delivered through an inner lumen of a catheter which has a distal portion extending within the coronary artery.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 11, 1997
    Assignee: Cardima, Inc.
    Inventors: Ruey Sung, Gene Samson
  • Patent number: 5683410
    Abstract: This invention is a single-lumen balloon catheter having a valve seat on the distal end of the catheter, distal of the balloon, which may be operated by a control wire having a valve plug disposed on the wire. The valve seat may be engaged by the valve plug from either direction, depending on the installation of the control wire. In either event, if the valve plug is installed distally of the valve seat in the catheter lumen, the valve is closed by pulling on the control wire (or moving the control wire in a proximal direction) and introducing fluid through the catheter lumen through the balloon. Alternatively, the guidewire, with its integral valve plug, may be introduced from the proximal end of the catheter and may traverse the body of the balloon to engage the valve seat in the distal end of the catheter. Pushing on the control wire will seat the valve, allowing the introduction of fluid through the catheter lumen to inflate the balloon.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: November 4, 1997
    Assignee: Target Therapeutics, Inc.
    Inventor: Gene Samson
  • Patent number: 5682885
    Abstract: A system for detecting electrical activity within a patient's heart comprising an elongated intravascular device, such as a catheter or guidewire, having at least one bipolar electrode pair on a distal section of the elongated device to intravascularly detect electrical activity within the patient's heart. The catheter or guidewire preferably has a tubular shaft formed of braided strands which include a plurality of insulated conductors which are electrically connected to the bipolar electrodes.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: November 4, 1997
    Assignee: Cardima, Inc.
    Inventors: Laszlo Littmann, Gene Samson, Gabriel Vegh
  • Patent number: 5658264
    Abstract: This invention is a surgical device. In particular, it is a catheter suitable for accessing a tissue target within the body, typically a target which is accessible through the vascular system. Central to the invention is the use of a stiffener ribbon, typically metallic, wound within the catheter body in such a way as to create a catheter having controllable stiffness. The stiffener ribbon is adhesively bonded to a flexible outer tubing member so to produce a thin wall catheter section which is exceptionally flexible but highly kink resistant. The catheter sections made according to this invention may be used in conjunction with other catheter sections either using the concepts shown herein or made in other ways. Because of the effective strength and ability to retain a generally kink-free form, these catheters may be effectively used in sizes which are quite fine, e.g., 0.015" to 0.020" in diameter, and usable within typical vascular catheters.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: August 19, 1997
    Assignee: Target Therapeutics, Inc.
    Inventor: Gene Samson
  • Patent number: 5649978
    Abstract: This invention is in the general field of surgical instruments and relates specifically to an inflatable prosthetic device suitable for use in cardiovascular or endovascular procedures, such as angioplasty, to restore normal blood flow through the vessel. The device is generally a helically wound balloon having a false lumen through its center which is inflatable through its integral inflation lumen.
    Type: Grant
    Filed: October 25, 1994
    Date of Patent: July 22, 1997
    Assignee: Target Therapeutics, Inc.
    Inventor: Gene Samson
  • Patent number: 5645082
    Abstract: A method and system for treating a patient's heart exhibiting arrhythmia by first detecting electrical activity within the patient's heart to determine the location of the arrhythmogenic site or conductive pathway causing the arrhythmia and then creating an infarct within the region of the patient's heart where the arrhythmogenic site or the conductive pathway causing the arrhythmia is located by delivering an occluding element to a coronary artery which delivers oxygenated blood to said region of the patient's heart. In one presently preferred embodiment the occluding element is a flaccid or limp coil which when disposed in a coronary arterial passageway forms a randomly shaped, intertwined mass which quickly forms thrombus within the coronary artery to block the passage of oxygenated blood therethrough. The flaccid coil may be delivered through an inner lumen of a catheter which has a distal portion extending within the coronary artery.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: July 8, 1997
    Assignee: Cardima, Inc.
    Inventors: Ruey Sung, Gene Samson
  • Patent number: 5549109
    Abstract: This invention is a medical device. It is a multipolar catheter assembly optionally in combination with a guidewire. Each of the catheter and the guidewire may be sheathed and have multiple electrodes at their distal ends. Because of their size and flexibility, the catheter and the guidewire may be used at virtually any point within the vasculature particularly, however, within the cardiac arteries or veins, perhaps in conjunction with external electrocardiogram leads, to map the body's electrical activity. When used in the heart, they may be used to determine the source of a cardiac arrythmia. The intimate presence of the guidewire or catheter body in the cardiac vasculature allows the response time to changes in cardiac electrical activity is very quick. The invention is also a method for mapping the electrical activity of the heart by use of one or more of these inventive guidewires or catheters in the cardiac arteries or veins.
    Type: Grant
    Filed: December 8, 1994
    Date of Patent: August 27, 1996
    Assignee: Target Therapeutics, Inc.
    Inventors: Gene Samson, Gabriel B. Vegh, Duane Dickens, Herbert G. Rettke
  • Patent number: 5522819
    Abstract: A device for retrieving foreign bodies, such as a vaso-occlusive coil or other articles, from within vessels such as those of the cardiovascular system. Two small snare coils are joined at their distal ends to form a loop. The proximal ends of the loops are attached to one or more elongated actuator members. The loop size is adjusted by manipulation of one or more of the proximal ends of the elongated actuator members. This retrieval device may be used to ensnare and either reposition or remove foreign bodies located within a vessel lumen.
    Type: Grant
    Filed: May 12, 1994
    Date of Patent: June 4, 1996
    Assignee: Target Therapeutics, Inc.
    Inventors: Virgil B. Graves, Alan Rappe, Ivan Sepetka, Son Gia, Pete P. Pham, Gene Samson
  • Patent number: 5509411
    Abstract: A system for detecting electrical activity within a patient's heart comprising an elongated intravascular device, such as a catheter or guidewire, having at least one bipolar electrode pair on a distal section of the elongated device to intravascularly detect electrical activity within the patient's heart. The catheter or guidewire preferably has a tubular shaft formed of braided strands which include a plurality of insulated conductors which are electrically connected to the bipolar electrodes.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: April 23, 1996
    Assignee: Cardima, Inc.
    Inventors: Laszlo Littmann, Gene Samson, Gabriel Vegh
  • Patent number: 5505725
    Abstract: A shapeable optical fiber apparatus includes an optical fiber, a support structure secured over a distal end portion of the optical fiber, and terminates in a lens at its distal end. The transition area between the lens and optical fiber is reinforced with a sleeve that is adhesively bonded to the lens and fiber. The shapeable optical fiber apparatus may be carried within an inflatable balloon dilation catheter, which may be used for balloon angioplasty after a laser cutting procedure using the shapeable optical fiber apparatus to remove a portion of stenosis in the patient's vasculature.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: April 9, 1996
    Assignee: CardioGenesis Corporation
    Inventor: Gene Samson
  • Patent number: 5462523
    Abstract: This invention is a surgical instrument and specifically is a catheter for treating a target site by delivering a controlled amount of a therapeutic or diagnostic agent (the target site being accessible by a tortuous path through the vasculature), the perfusion tip assembly on first catheter, and a process of using that catheter to deliver fluids to the selected vascular site.
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: October 31, 1995
    Assignee: Target Therapeutics, Inc.
    Inventors: Gene Samson, Erik T. Engelson, Hiram Chee, Robert E. Woodard
  • Patent number: 5454795
    Abstract: This invention is a surgical device. In particular, it is a catheter suitable for treating a tissue target within the body, which target is accessible through the vascular system. Central to the invention is the use of stiffener ribbons, typically metallic, wound within the catheter body in such a way as to create a catheter having controllable stiffness.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: October 3, 1995
    Assignee: Target Therapeutics, Inc.
    Inventor: Gene Samson
  • Patent number: 5423849
    Abstract: This invention is a vasoocclusive device. More particularly, it is a tubular vasoocclusion braid woven from at least radiopaque fibers. The braid may also be partially woven from radiolucent fibers. Optionally, the device may contain a fibrous center or wick in its interior. The device may be continuous or segmented and a fibrous covering or element may be attached.
    Type: Grant
    Filed: January 15, 1993
    Date of Patent: June 13, 1995
    Assignee: Target Therapeutics, Inc.
    Inventors: Erik T. Engelson, Gene Samson
  • Patent number: 5415178
    Abstract: An extendable guidewire assembly comprising: a guidewire having a tapered proximal end; an extension wire having a tapered distal end; and a polymeric tubular sleeve reinforced with a helical coil that is fixedly attached about the tapered distal end of the extension wire such that the tapered distal end of the extension wire extends partly through the sleeve lumen, said lumen having a diameter that is smaller than the untapered diameter of the guidewire and wherein said lumen expands radially when the sleeve is under axial compression and contracts radially when the sleeve is under axial tension.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: May 16, 1995
    Assignee: Target Therapeutics
    Inventors: Bobbie Hsi, Gene Samson
  • Patent number: 5389096
    Abstract: A method and apparatus are described for percutaneous myocardial revascularization of a human heart. A deflectable elongated flexible lasing apparatus is used which includes a source of laser radiation, an elongated flexible radiation conveying means for conducting the laser radiation to a lens on the distal end of the radiation conveying means for focusing the laser radiation, and control lines for deflecting the distal end of the radiation conveying means. The control lines are secured to the distal end of the radiation conveying means for changing the angle of deflection of the distal end of the radiation conveying means. The lasing apparatus is guided to an area within the patient's heart, and the distal end of the lasing apparatus is directed to an area of interest where the inner wall of the heart is irradiated with laser energy to form a channel through the myocardium for a desired distance. In a preferred embodiment, channels are formed without perforating the epicardium of the heart.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: February 14, 1995
    Assignee: Advanced Cardiovascular Systems
    Inventors: Michael Aita, Gene Samson, Bruce H. Wand, Robert F. Kotmel
  • Patent number: 5370691
    Abstract: This invention is an intraluminal stent or graft suited for the noninvasive treatment of aneurysms, diseased blood vessels, and other bodily lumen. The stent is made up of polymeric tubing which is helically and tightly wound to produce a column having an open lumen from one end to the other. At the stent's distal end, the tubing is sealed. At the stent's proximal end, the stent is adapted to allow the introduction of fluid suitable for inflating the stent at the chosen vascular site. The stent coils adhere to each other or to one or more sizing strips which may be straight or helical in configuration, or the stent may be constructed to use both methodologies.
    Type: Grant
    Filed: January 26, 1993
    Date of Patent: December 6, 1994
    Assignee: Target Therapeutics, Inc.
    Inventor: Gene Samson
  • Patent number: 5304198
    Abstract: This invention is a single-lumen balloon catheter having a valve seat on the distal end of the catheter, distal of the balloon, which may be operated by a control wire having a valve plug disposed on the wire. The valve seat may be engaged by the valve plug from either direction, depending on the installation of the control wire. In either event, if the valve plug is installed distally of the valve seat in the catheter lumen, the valve is closed by pulling on the control wire (or moving the control wire in a proximal direction) and introducing fluid through the catheter lumen through the balloon. Alternatively, the guidewire, with its integral valve plug, may be introduced from the proximal end of the catheter and may traverse the body of the balloon to engage the valve seat in the distal end of the catheter. Pushing on the control wire will seat the valve, allowing the introduction of fluid through the catheter lumen to inflate the balloon.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: April 19, 1994
    Assignee: Target Therapeutics
    Inventor: Gene Samson
  • Patent number: 5275173
    Abstract: An extendable guidewire assembly comprising: a guidewire having a tapered proximal end; an extension wire having a tapered distal end; a first polymeric tubular sleeve that is fixedly attached about the tapered distal end of the extension wire such that the tapered distal end of the extension wire extends partly through the sleeve lumen, said lumen having a diameter that is smaller than the untapered diameter of the guidewire and wherein said lumen expands radially when the sleeve is under axial compression and contracts radially when the sleeve is under axial tension; and a second polymeric sleeve to guide the guidewire into the first polymeric sleeve.
    Type: Grant
    Filed: December 1, 1992
    Date of Patent: January 4, 1994
    Assignee: Target Therapeutics, Inc.
    Inventors: Gene Samson, Bobbie H. P. Hsi, Steve P. Bernath