Class / Patent application number | Description | Number of patent applications / Date published |
604530000 | With shape retaining memory | 13 |
20090093796 | CATHETER DEVICE - The catheter device comprises a drive shaft connected to a motor, and a rotor mounted on the drive shaft at the distal end section. The rotor has a frame structure which is formed by a screw-like boundary frame and rotor struts extending radially inwards from the boundary frame. The rotor struts are fastened to the drive shaft by their ends opposite the boundary frame. Between the boundary frame and the drive shaft extends an elastic covering. The frame structure is made of an elastic material such that, after forced compression, the rotor unfolds automatically. | 04-09-2009 |
20090099551 | Sensors and control for an interventional catheter - This invention provides small position sensors for applications where localized sensing in a small volume of space is needed but where measurement of large relative displacement is also necessary. The invention enables a surgeon to accurately position the tip of a catheter during minimally invasive therapy. The current invention further improves the quality of tactile feedback to a physician during catheter-based surgeries with an axial force sensor at the tip of the catheter that allows for the transmission of force information to the physician. One embodiment of this invention is a position sensor for active interventional catheters, where the sensor may be laser-machined shape memory alloy (SMA), and the catheter actuators may be heated SMA or wire-pulleys. Providing position feedback from a catheter during minimally invasive therapy allows for closed-loop control of the catheter tip position under computer-aided guidance and enable force feedback to the physician. | 04-16-2009 |
20090105691 | ACCESS PORT USING SHAPE MEMORY ANCHOR - The present disclosure provides an anchoring cannula for use in surgery. The cannula possesses a shape memory polymer on the distal portion thereof which expands upon heating thereby securing the cannula in tissue. | 04-23-2009 |
20140128848 | Catheter with Leading Guidewire Lumen - A vascular access catheter is disclosed that has a leading guidewire lumen. The guidewire lumen is configured for receiving a guidewire and may extend a partial length of the catheter or substantially the entire length of the catheter. A lumen of the catheter can have an opening located in an angled edge distal end portion of the catheter next to the distal tip. A second lumen can have an opening that is positioned in the outer surface of the catheter shaft, and is spaced proximally from the first lumen opening. | 05-08-2014 |
20150119862 | FLEXIBLE CATHETER SHAFT AND METHOD OF MANUFACTURE - The present disclosure provides a strong, flexible catheter shaft for use in a catheter system. The flexible catheter shaft includes a nitinol tube having one or more sets of cuts therein in combination with one or more outer jacket layers. The flexible catheter shaft provides a shaft having sufficient stiffness and kink resistance to allow an operator to advance an electrode basket connected to the flexible catheter shaft through a guide catheter to a target ablation site without causing vessel trauma. The distal tip of the flexible catheter shaft is designed to have sufficient flexibility to reduce any risk of kicking out a guide catheter when tracking the electrode basket around turns in the vasculature of a patient. | 04-30-2015 |
604531000 | Temperature activated | 5 |
20090299335 | Shape Memory System with Integrated Actuation Using Embedded Particles - A shape memory material with integrated actuation using embedded particles. One embodiment provides a shape memory material apparatus comprising a shape memory material body and magnetic pieces in the shape memory material body. Another embodiment provides a method of actuating a device to perform an activity on a subject comprising the steps of positioning a shape memory material body in a desired position with regard to the subject, the shape memory material body capable of being formed in a specific primary shape, reformed into a secondary stable shape, and controllably actuated to recover the specific primary shape; including pieces in the shape memory material body; and actuating the shape memory material body using the pieces causing the shape memory material body to be controllably actuated to recover the specific primary shape and perform the activity on the subject. | 12-03-2009 |
20120035592 | MEDICAL DEVICES INCLUDING SHAPE MEMORY MATERIALS - Medical devices, such as catheters, including shape memory materials, are provided, as well as related methods of making and using such medical devices. | 02-09-2012 |
20120232529 | SHAPE MEMORY SYSTEM WITH INTEGRATED ACTUATION USING EMBEDDED PARTICLES - A shape memory material with integrated actuation using embedded particles. One embodiment provides a shape memory material apparatus comprising a shape memory material body and magnetic pieces in the shape memory material body. Another embodiment provides a method of actuating a device to perform an activity on a subject comprising the steps of positioning a shape memory material body in a desired position with regard to the subject, the shape memory material body capable of being formed in a specific primary shape, reformed into a secondary stable shape, and controllably actuated to recover the specific primary shape; including pieces in the shape memory material body; and actuating the shape memory material body using the pieces causing the shape memory material body to be controllably actuated to recover the specific primary shape and perform the activity on the subject. | 09-13-2012 |
20130110086 | BULGED CATHETER TIP | 05-02-2013 |
20160066951 | ADJUSTABLE CANNULA SYSTEMS AND DEVICES - Various adjustable cannula systems are provided. The systems can include an adjustable cannula capable of expansion and/or contraction having an elongate body with a distal end and a proximal end. The adjustable cannula can be coupled to an upper housing and a lower housing such that rotation of the upper housing results in expansion or contraction of the adjustable cannula. The adjustable cannula can also have a proximal end having a lumen larger than a distal end lumen. A plurality of flanges can be formed in the elongate body by a plurality of slits that span a majority of a length of the cannula, including along or proximate to its proximal end and distal end. | 03-10-2016 |
604532000 | Shaped for cardiovascular system | 3 |
20110071503 | CATHETER FOR CORONARY ARTERY AND ENGAGING METHOD THEREFOR - A catheter for a coronary artery can include a distal end for being introduced into an opening of a coronary artery from an artery of an arm. The catheter can, include a catheter main body including a main body portion having a substantially linear shape in a natural state and a curved portion forming a portion extending from the main body portion to the distal end and having a curved shape in a natural state. The curved portion can include a first curve extending in a curved state from the main body portion, an intermediate portion extending from the first curve, a second curve extending from the intermediate portion and curved in a direction same as that of the first curve, and an extreme distal end portion of a substantially linear shape extending from the second curve. A method of using the catheter is also disclosed. | 03-24-2011 |
20140088566 | GUIDING CATHETER - Guiding catheter comprising a first end and a second end, and at least three main portions being: a first linear portion connected to the first end, a second curved portion connected to the first linear portion, a third linear portion, connected to the second curved portion, opposite to the first linear portion, and connected to said second end, characterized in that said second curved portion subtends an angle β from 195° to 240° and in that said third linear portion is provided to engage an active distal tip as fourth portion. | 03-27-2014 |
20160066993 | PRESHAPED ABLATION CATHETER FOR ABLATING PULMONARY VEIN OSTIA WITHIN THE HEART - Catheters and methods are provided for performing medical procedures. The catheter comprises an elongated flexible integrated catheter body having proximal and distal shaft portions, a central support positioned inside the distal shaft and at least one operative element carried by the distal shaft portion. The distal shaft portion has a proximal section configured to be internally actuated to form a simple curve with an apex that can be inserted into the vessel ostium, an intermediate section pre-shaped to form a curve that bends opposite the simple curve, and a distal section configured to be placed into a non-radial relationship with the vessel ostium when the apex of the simple curve is inserted into the vessel ostium. | 03-10-2016 |