William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 5827225 | Catheter flexible distal tip The catheter (5) with a flexible tip (20) includes a manifold (25) at the proximal end, a flexible catheter body (40) having a proximal end and a distal end, a balloon (15) at the distal end and a distal flexible tip (20). The catheter is designed for ope... | 10/27/1998 |
| 5810871 | Stent delivery system What is disclosed is a stent delivery system comprising an inflation shaft having an expandable balloon sealingly mounted at the distal end thereof and a tubular sheath having the inflation shaft longitudinally running therethrough. The tubular sheath has... | 09/22/1998 |
| 5772642 | Closed end catheter A method and apparatus for a closed end catheter system comprising a catheter body defining a tool lumen sized to receive an elongated tool. The distal end of the tool lumen has a plug therein. A guidewire lumen extends within the catheter body and is siz... | 06/30/1998 |
| 5769819 | Catheter distal tip component Disclosed is a medical catheter comprising a guidewire shaft defining a guidewire lumen. A distal tip extension defines a distal tip extension lumen having at a proximal end thereof a distal end of the guidewire shaft sealingly affixed therein. The inflat... | 06/23/1998 |
| 5759474 | Method of making thickened inner lumen for uniform stent expansion An intravascular catheter system for implanting a radially expandable stent within a body vessel including a catheter comprising an inner lumen tube, an inflation lumen tube, an inflatable balloon and at least one free standing built-up layer affixed to t... | 06/02/1998 |
| 5667521 | Rapid exchange catheter The present invention relates to over-the-wire PTCA balloon catheters (5), and more particularly, to a rapid exchange catheter with the guidewire lumen (50) at the distal tip. The present invention discloses a rapid exchange medical catheter having a wire... | 09/16/1997 |
| 5653691 | Thickened inner lumen for uniform stent expansion and method of making An intravascular catheter system for implanting a radially expandable stent within a body vessel including a catheter comprising an inner lumen tube, an inflation lumen tube, an inflatable balloon and at least one free standing built-up layer affixed to t... | 08/05/1997 |
| 5643209 | High pressure balloon tip The present invention is accomplished by providing a dilatation balloon catheter with a flexible tip comprising a catheter body having proximal and distal ends with an outer shaft defining an inflation lumen. The catheter body has a coaxial inner guidewir... | 07/01/1997 |
| 5624617 | Method of manufacture for catheter lumen lubricity A method of manufacture is disclosed for a PTCA guiding catheter. The catheter includes a lamination of an inner structural polymer tube, a lubricating means disposed on the inside of the inner structural polymer tube, a reinforcement means embedded at le... | 04/29/1997 |
| 5613981 | Bidirectional dual sinusoidal helix stent A method apparatus for a radially expandable stent for implantation within a body vessel, comprising a first wire formed winding and a second wire formed winding. The first wire formed winding has a hollow cylindrical shape including a preformed pattern s... | 03/25/1997 |
| 5596996 | High support nitinol tube guidewire with plastic plug transition A catheter guidewire having an elongate core wire, an elongate tube defining a tube lumen, the proximal end of the tube being affixed to the distal end of the core wire. The tube has a smooth exterior surface and one or more plug segments filling the tube... | 01/28/1997 |
| 5591198 | Multiple sinusoidal wave configuration stent The present invention is accomplished by providing a method and apparatus for a radially expandable stent for implantation within a body vessel, comprising a large wire formed winding segment and 2 small wire formed winding segments. The large wire formed... | 01/07/1997 |
| 5549556 | Rapid exchange catheter with external wire lumen A catheter formed of an elongated shaft with a dilatation balloon at the distal end includes a guide wire lumen external to the balloon. The guidewire lumen extends from the distal tip of the catheter to a proximal port distal from the proximal end of the... | 08/27/1996 |
| 5545138 | Adjustable stiffness dilatation catheter A catheter with a guidewire shaft (1) with a proximal end which is free to move, the proximal end of the catheter having either a dual lumen (14) embodiment or a single lumen (6) embodiment. The dual lumen (14) embodiment has a stiffening wire lumen (17) ... | 08/13/1996 |
| 5509910 | Method of soft tip attachment for thin walled catheters A catheter comprising a soft tip segment (5), a transition segment (11), and a shaft segment (3). The soft tip segment (5) has at least two ungular sections (6, 7) removed from the proximal end. The distal end of the transition segment (11) is bonded to t... | 04/23/1996 |
| 5507732 | Quick assembly catheter manifold The present invention is accomplished by providing a catheter manifold (15) having a manifold catheter lumen (115) extending longitudinally therethrough plus a rotationally symmetrical, conically tapering, elastomeric distal seal (65) for gripping the cat... | 04/16/1996 |
| 5458639 | Catheter balloon distal bond The present invention is accomplished by providing a catheter with a shaft having a balloon affixed to the distal end, a core wire extending throughout the shaft and throughout the balloon, the core wire having a tube surrounding the distal end, a sleeve ... | 10/17/1995 |
| 5425710 | Coated sleeve for wrapping dilatation catheter balloons A hollow, cylindrical protector for a dilatation catheter balloon. The disclosed protector is made from silicone tubing having a coating on at least an inner surface thereof for enhancing the lubricity of the protector and thus facilitating easy installat... | 06/20/1995 |
| 5423799 | Surgical instrument A medical device for removing material from a body vessel comprising a tube, a drive shaft extending through the tube, a stepped root mounted to the drive shaft, a rotatable screw having a distal and proximal end, the screw extending outward from the step... | 06/13/1995 |
| 5417707 | Dilatation balloon protector with raised ribs A one-piece balloon protector apparatus for a dilatation catheter. The disclosed protector comprises a unitary, planar element having two sets of longitudinal ribs, one set being disposed on a first planar face of the protector along a first edge and anot... | 05/23/1995 |
| 5410797 | Method of making a catheter with flexible side port entry An improved balloon catheter is disclosed which is comprised of two jacketed spring coils placed end-to-end and joined by a linking element which contains a lumen communicating between the inflation lumens formed by the two spring coils. A side port entry... | 05/02/1995 |
| 5409458 | Grooved balloon for dilatation catheter A dilatation catheter having a balloon (20) of unique and novel configuration which enhances critical properties of the catheter. In at least one section (26), the balloon (20) has a substantially semi-circular cross section when in an uninflated, unwrapp... | 04/25/1995 |
| 5383853 | Rapid exchange catheter The present invention relates to over-the-wire PTCA balloon catheters (5), and more particularly, to a rapid exchange catheter with the guidewire lumen (50) at the distal tip. The present invention discloses a rapid exchange medical catheter having a wire... | 01/24/1995 |
| 5376074 | Outer exchange catheter system This invention relates to corporeal catheters. More particularly, this invention relates to an outer exchange catheter system comprising an outer catheter sheath and at least one steerable inner catheter having a control means, said outer catheter sheath ... | 12/27/1994 |
| 5357978 | Rapid exchange guidewire loading attachment The disclosed device relates to over-the-wire PTCA balloon catheters (5), and more particularly, to a rapid exchange catheter (5) for dilatation therapy. The rapid exchange medical catheter (5) has a wire guiding means external to the shaft (35) for slida... | 10/25/1994 |
| 5352236 | Balloon protector An elastomeric compression unit forming a balloon protector for a catheter and a catheter system having the balloon protector are disclosed. The balloon protector is formed of an elastomeric tube, preferably silicone, lined with lubricious material. The l... | 10/04/1994 |
| 5350361 | Tri-fold balloon for dilatation catheter and related method A tri-fold dilatation catheter balloon and a method for preparing the same. The disclosed balloon has a tri-fold configuration in which the longitudinal creases defined by three flaps of the balloon are softened to ensure symmetrical deflation of the ball... | 09/27/1994 |
| 5328472 | Catheter with flexible side port entry An improved balloon catheter is disclosed which is comprised of two jacketed spring coils placed end-to-end and joined by a linking element which contains a lumen communicating between the inflation lumens formed by the two spring coils. A side port entry... | 07/12/1994 |
| 5313967 | Helical guidewire A torque-transmitting structure such as a guidewire or catheter is formed of a generally flat band or wire twisted so that its longitudinal edge generally forms a helix. This twisted helical portion may be attached to a proximal shaft, and a tip member ma... | 05/24/1994 |
| 5284480 | Inflation/deflation syringe with threaded plunger An inflation device is disclosed for inflation of a balloon of a balloon catheter. A housing defines a fluid-receiving reservoir in fluid communication with the balloon and an interior space for completely receiving a pressure gauge which accesses the flu... | 02/08/1994 |
| 5279561 | Dilitation catheter A dilatation catheter compromising a torque-transmitting shaft, a flexible body surrounding the shaft, and an inflatable balloon having a proximal end mounted on the flexible body. The dilatation catheter also includes a tip spring having a proximal end f... | 01/18/1994 |
| 5273546 | Hemostasis valve A self-sealing, penetrable, hemostasis valve for a catheter introducer or the like which comprises an elastomeric gasket member having first and second opposed faces adapted to be secured in a valve housing, wherein faces define generally concave surfaces... | 12/28/1993 |