Abstract: The present invention discloses an RF electrosurgical system featuring an RF electrosurgical generator with a user interface and outlets delivering RF energy to an RF cutting instrument. The RF electrosurgical generator is equipped with software designed to measure impedance values while delivering voltage pulses to the cutting instrument. In the event that the measured impedance value surpasses a predetermined impedance threshold, the software is programmed to adjust the voltage amplitude of each voltage pulse, either partially or fully reducing it. This innovative system ensures optimal performance and safety during electrosurgical procedures by dynamically adapting voltage output based on real-time impedance measurements.

Abstract: A retrieval catheter and methods of use are described for removing a heart valve therapy such as a leaflet clip or artificial leaflet cord. The retrieval catheter can include a cutting element and a basket, piercing element, clamping mechanism, or similar grasping device. The method includes delivering a catheter to the region of the heart valve therapy and then manipulating the catheter and associated instruments to cut tissue as necessary and then remove the heart valve therapy and withdraw the catheter.

Abstract: A retrieval catheter and methods of use are described for removing a heart valve therapy such as a leaflet clip or artificial leaflet cord. The retrieval catheter can include a cutting element and a basket, piercing element, clamping mechanism, or similar grasping device. The method includes delivering a catheter to the region of the heart valve therapy and then manipulating the catheter and associated instruments to cut tissue as necessary and then remove the heart valve therapy and withdraw the catheter.

Abstract: The present disclosure relates to medical devices. More particularly, this disclosure describes a vascular device allowing large bore transseptal access with subsequent atrial re-access by preplacing closures/tissue approximating sutures prior to creating a septostomy. Generally, the device may include a delivery catheter for puncturing and cutting the interatrial septum. An anchor of the delivery catheter may secure the suture in an atrium to a septum wall, for example, the left atrium. Incisions may be made by an expandable cutting implement which may use mechanical or radio frequency (RF) energy without interfering with the suture. A therapeutic instrument may be advanced through the tissue plane after the incisions are made by the cutting implement. Closure of the incision may be performed with the previously placed sutures.

Abstract: A system and method modifying a heart valve leaflet utilizing a leaflet crossing tool and a cutting element.

Abstract: A retrieval catheter and methods of use are described for removing a heart valve therapy such as a leaflet clip or artificial leaflet cord. The retrieval catheter can include a cutting element and a basket, piercing element, clamping mechanism, or similar grasping device. The method includes delivering a catheter to the region of the heart valve therapy and then manipulating the catheter and associated instruments to cut tissue as necessary and then remove the heart valve therapy and withdraw the catheter.

Abstract: A guide wire that has an atraumatic and flexible loop that expands within a vessel, with indicators that indicate the degree of expansion. The indicators are used to determine the degree of expansion through the use of radio-opaque markers, hydraulic, and electrical signals. The guide wire enables safe passage into target vessels while providing user feedback on inadvertent passage into side branches and diseased segments.

Abstract: A retrieval catheter and methods of use are described for removing a heart valve therapy such as a leaflet clip or artificial leaflet cord. The retrieval catheter can include a cutting element and a basket, piercing element, clamping mechanism, or similar grasping device. The method includes delivering a catheter to the region of the heart valve therapy and then manipulating the catheter and associated instruments to cut tissue as necessary and then remove the heart valve therapy and withdraw the catheter.

Abstract: The present disclosure relates to medical devices. More particularly, this disclosure describes a vascular device allowing large bore transseptal access with subsequent atrial re-access by preplacing closures/tissue approximating sutures prior to creating a septostomy. Generally, the device may include a delivery catheter for puncturing and cutting the interatrial septum. An anchor of the delivery catheter may secure the suture in an atrium to a septum wall, for example, the left atrium. Incisions may be made by an expandable cutting implement which may use mechanical or radio frequency (RF) energy without interfering with the suture. A therapeutic instrument may be advanced through the tissue plane after the incisions are made by the cutting implement. Closure of the incision may be performed with the previously placed sutures.

Abstract: A retrieval catheter and methods of use are described for removing a heart valve therapy such as a leaflet clip or artificial leaflet cord. The retrieval catheter can include a cutting element and a basket, piercing element, clamping mechanism, or similar grasping device. The method includes delivering a catheter to the region of the heart valve therapy and then manipulating the catheter and associated instruments to cut tissue as necessary and then remove the heart valve therapy and withdraw the catheter.

Abstract: A guide wire that has an atraumatic and flexible loop that expands within a vessel, with indicators that indicate the degree of expansion. The indicators are used to determine the degree of expansion through the use of radio-opaque markers, hydraulic, and electrical signals. The guide wire enables safe passage into target vessels while providing user feedback on inadvertent passage into side branches and diseased segments.