| CIRCULITE, INC. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120004496 | CANNULA LINED WITH TISSUE IN-GROWTH MATERIAL AND METHOD OF USING THE SAME - A cannula for moving fluids between a pump and the circulatory system of a patient. The cannula includes a liner having an intermediate portion between a proximal portion and a distal portion, and a lumen extending between the proximal and distal portions. At least the intermediate portion of the liner is constructed from a tissue in-growth material for supporting the growth of endothelial cells. A jacket surrounds at least part of the liner. | 01-05-2012 |
| 20110200451 | TEST CONTROLLER FOR A ROTARY PUMP - A test controller and method to operate a rotary motor of a pump are provided. The test controller includes a test speed circuit electrically coupled to, but detachable from, the pump and being configured to apply at least one signal to the pump motor to cause the pump motor to rotate at a predetermined test speed and/or for a predetermined test time. An actuator selectively activates the test speed circuit to operate the pump motor at the predetermined test speed and/or for the predetermined test time. The method includes electrically coupling the test controller to the pump and, in response to selective activation of the actuator, selectively activating the test speed circuit to apply at least one signal to the pump motor to operate the pump motor at a predetermined test speed and/or for a predetermined test time. The method further includes detaching the test controller from the pump. | 08-18-2011 |
| 20110196191 | CANNULA LINED WITH TISSUE IN-GROWTH MATERIAL AND METHOD OF USING THE SAME - A cannula for moving fluids between a pump and the circulatory system of a patient. The cannula includes a liner having an intermediate portion between a proximal portion and a distal portion, and a lumen extending between the proximal and distal portions. At least the intermediate portion of the liner is constructed from a tissue in-growth material for supporting the growth of endothelial cells. A jacket surrounds at least part of the liner. | 08-11-2011 |
| 20110196190 | DEVICES, METHODS AND SYSTEMS FOR ESTABLISHING SUPPLEMENTAL BLOOD FLOW IN THE CIRCULATORY SYSTEM - A cannula for insertion through a biologic tissue. The cannula includes a shaft having proximal and distal end portions with a lumen therebetween. The cannula further includes a tip having a proximal end portion, a distal tip end, and a lumen therebetween. The proximal end portion of the tip is secured to the distal end portion of the shaft so that the lumen of the tip is in fluid communication with the lumen of the shaft. The tip includes an opening that extends proximally relative to the distal tip end to permit the flow of fluid into the lumen of the tip even in the event that the distal tip end becomes obstructed. | 08-11-2011 |
| 20110190707 | ANCHORING GUIDE ELEMENT - A transseptal cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The transseptal cannula assembly includes a flexible cannula body having proximal and distal portions with a lumen therebetween, a tip coupled to the distal portion of the flexible cannula body, and first and second anchors coupled to the tip. The anchors can be configured to be deployed from a contracted state to an expanded state and are configured to engage opposite sides of the heart tissue when in the expanded state. The anchors resist movement of the cannula assembly along a lengthwise central axis of the flexible cannula body. | 08-04-2011 |
| 20110190697 | VASCULAR INTRODUCERS HAVING AN EXPANDABLE SECTION - A vascular introducer having an expandable sheath. The sheath includes a balloon-expandable section and a self-expandable section, where the balloon-expandable section is distal to the self-expandable section. The distal balloon-expandable section is collapsible to decrease a diameter of the introducer for directing the introducer into a vasculature of a patient. | 08-04-2011 |
| 20110190567 | METHODS OF SECURING A CANNULA ASSEMBLY, IMPLANTING A CIRCULATORY ASSIST SYSTEM AND CROSSING A TISSUE BARRIER - A transseptal cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The transseptal cannula assembly includes a flexible cannula body having proximal and distal portions with a lumen therebetween, a tip coupled to the distal portion of the flexible cannula body, and first and second anchors coupled to the tip. The anchors can be configured to be deployed from a contracted state to an expanded state and are configured to engage opposite sides of the heart tissue when in the expanded state. The anchors resist movement of the cannula assembly along a lengthwise central axis of the flexible cannula body. | 08-04-2011 |
| 20110137234 | METHODS FOR ESTABLISHING SUPPLEMENTAL BLOOD FLOW IN THE CIRCULATORY SYSTEM - A blood circulation assist system comprising an inflow cannula having a lumen and an insertion device configured to be received therein and to facilitate insertion of a portion of the inflow cannula into a heart chamber. The insertion device includes a shaft having distal and proximal end portions and a plurality of lumens. A first lumen is configured to receive a guidewire and a second lumen is configured to receive a pressurized fluid. A tip connected to the distal end portion of the shaft is configured for insertion into the heart chamber. The tip has a hollow interior communicating with the first shaft lumen. An inflatable member is coupled to the distal end portion of the shaft and includes a hollow interior in fluid communication with the second shaft lumen. The inflatable member is movable between deflated and inflated configurations for releasably securing the insertion device to the inflow cannula. | 06-09-2011 |
| 20110118668 | CANNULA STABILIZER - An apparatus and method for stabilizing a cannula to a vascular structure. The stabilizer includes a ring that circumferentially surrounds the cannula. Three or more struts extend distally from the ring and are outwardly-deflected by a first angle relative to a first axis that is parallel to a lengthwise central axis of the cannula. Each strut includes a contact pad that radially extends from the strut and is distally-deflected by a second angle relative to a second axis that is orthogonal to the first axis. Three or more arms extend proximally from the ring and each arm opposes one of the struts. The arms are inwardly-deflected by a third angle relative to the first axis. The stabilizer is configured to move relative to the cannula until the contact pads engage the vascular structure, causing the arms to engage and resist further movement of the stabilizer relative to the cannula. | 05-19-2011 |
| 20110112353 | BIFURCATED OUTFLOW CANNULAE - A bifurcated cannula for directing blood into the arterial system. The bifurcated cannula including an ingress channel and first and second egress channels. The first egress channel directs a first portion of the blood entering the bifurcated cannula into the arterial system in a first direction. The second egress channel directs a second portion of the blood entering the bifurcated cannula into the arterial system in a direction that opposes the first direction. | 05-12-2011 |
| 20110087063 | TWO PIECE ENDOVASCULAR ANASTOMOTIC CONNECTOR - An anastomotic connector comprising an endovascular component including a vascular conduit and a supply conduit and a cannula component. The vascular conduit has first and second ends that are configured to reside within a vascular structure. The supply conduit has proximal and distal ends, where the distal end fluidicly connects to the vascular conduit between the first and second ends. The cannula component, which also includes proximal and distal ends, is received by the supply conduit. | 04-14-2011 |
| 20110066170 | ENDOVASCULAR ANASTOMOTIC CONNECTOR DEVICE, DELIVERY SYSTEM, AND METHODS OF DELIVERY AND USE - An endovascular anastomotic connector and method of using the same. The endovascular anastomotic connector includes a vascular conduit and a supply conduit. The vascular conduit has proximal and distal ends that reside within a vascular structure. The supply conduit extends at an angle from the vascular conduit. The proximal end of the supply conduit is configured to be attached to an auxiliary device. | 03-17-2011 |
| 20110054487 | COAXIAL TRANSSEPTAL GUIDE-WIRE AND NEEDLE ASSEMBLY - A coaxial transseptal device and methods of piercing a tissue within the heart. The coaxial transseptal device includes a piercing device having a shaft with a distal sharpened portion. The coaxial transseptal device also includes a coaxial guide-wire configured to receive the piercing device and move relative thereto. The flexibility of the coaxial guide-wire increases from the proximal end to the distal end. | 03-03-2011 |
| 20100249491 | TWO-PIECE TRANSSEPTAL CANNULA, DELIVERY SYSTEM, AND METHOD OF DELIVERY - A cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The cannula assembly includes a flexible cannula body having a proximal end and a distal end with a receiving portion, and a transseptal tip having a distal end and a proximal end with an engaging portion. First and second anchors are coupled to the transseptal tip and configured to be deployed from a contracted state to an expanded state. The engaging portion of the transseptal tip is operable to removably engage the receiving portion of the flexible cannula body in vivo. | 09-30-2010 |
| 20100249490 | TRANSSEPTAL CANNULA DEVICE, COAXIAL BALLOON DELIVERY DEVICE, AND METHODS OF USING THE SAME - A transseptal cannula having a flexible cannula body, a left atrial anchor coupled to the distal end of the flexible cannula body, and a right atrial anchor operable to be attached to the left atrial anchor in vivo. The left and right atrial anchors are implanted and deployed separately. Delivery of the transseptal cannula to a heart tissue can include a low profile coaxial balloon catheter comprising a tube body including an inner member and an outer member surrounding the inner member and thereby creating an inflation channel between the inner and outer members, a hub coupled to the proximal portion of the tube body and including a fluid space in fluid communication with the inflation channel; and a balloon coupled to the distal portion of the tube body, wherein the balloon is in fluid communication with the inflation channel. The hub of the coaxial balloon catheter is constructed with a low profile so that other surgical devices can be directed over the coaxial hub without deflating and removing the balloon. | 09-30-2010 |
| 20090182188 | DEVICES, METHODS AND SYSTEMS FOR ESTABLISHING SUPPLEMENTAL BLOOD FLOW IN THE CIRCULATORY SYSTEM - Devices, systems and methods for establishing a blood flow conduit between a chamber in a heart of a patient and a remote location. A blood inflow cannula having an outer surface and proximal and distal end portions. The distal end portion is configured for insertion into the chamber of the heart. First and second anchor elements have respective maximum width dimensions extending outwardly from the outer surface of the cannula. The first anchor element is positioned more distally than the second anchor element defining a tissue receiving space therebetween. The maximum width dimension of the first anchor element may be larger than the maximum width dimension of the second anchor element in use. The first anchor element is configured to be positioned inside the heart chamber and the second anchor element is configured to be positioned outside the heart chamber with heart tissue held in the tissue receiving space therebetween. | 07-16-2009 |
| 20090171137 | INTRAVASCULAR BLOOD PUMP AND CATHETER - An intravascular system for pumping blood from a chamber of a heart and through an associated blood vessel coupled in fluid communication therewith. The system includes a pump device configured to be inserted into a blood vessel. The system further includes a catheter having a proximal end coupled to the pump device and a distal end configured to collect blood within or exiting from the chamber. The catheter further includes a pre-formed shape corresponding to the vessel to at least assist with stabilization and positioning of the pump device in the vessel. | 07-02-2009 |
| 20090112050 | TRANSSEPTAL CANNULA, TIP, DELIVERY SYSTEM, AND METHOD - A transseptal cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The transseptal cannula assembly includes a flexible cannula body having proximal and distal portions with a lumen therebetween, a tip coupled to the distal portion of the flexible cannula body, and first and second anchors coupled to the tip. The anchors can be configured to be deployed from a contracted state to an expanded state and are configured to engage opposite sides of the heart tissue when in the expanded state. The anchors resist movement of the cannula assembly along a lengthwise central axis of the flexible cannula body. | 04-30-2009 |
| 20090023975 | CANNULA FOR HEART CHAMBER IMPLANTATION AND RELATED SYSTEMS AND METHODS - A cannula for implantation into a chamber of a heart includes an elongate body having a lumen extending along a longitudinal axis, a first end, and a second end. The first and second ends define openings into the lumen and the second end includes a flat portion. A flared tip portion extends from the flat portion of the second end in a direction toward the first end, and flares radially outward from the longitudinal axis and in such direction. A ring member extends around the axis of the elongate body and is spaced from the flared tip portion, and the ring member is adapted for retaining the elongate body in a position relative to a wall of the chamber. An embodiment of a flared tip portion may further include a barbed surface configured to contact tissue around an aperture in the wall of the heart when the cannula travels through the aperture. | 01-22-2009 |
