Abstract:
A resizable valve base for a cardiovascular valve assembly that is comprised of the resizable valve base and a valve member that is detachably coupled thereto. The resizable valve base has adjustable dimensions to allow use with both small and large size valve members. The valve base comprises a frame comprised of a plurality of frame sections, and each frame section includes a mounting portion and a pair of arcuate portions extending from opposite sides of the mounting portion. The valve base also includes a plurality of joining elements for joining together the frame sections to define a generally cylindrical opening having a diameter, wherein said plurality of joining elements allow adjacent frame sections to move towards or away from each other in order to modify the diameter of the opening, thereby moving the valve base between a collapsed position and an expanded position.
Abstract:
A cardiovascular valve system including a permanent base unit that is affixed to the patient using conventional sutures or staples, and a collapsible valve having a collapsible frame that mates with the permanent base unit, and supports valve leaflets. An installed collapsible frame may be re-collapsed and disengaged from the permanent housing. A new collapsible valve is then installed, to resume the function of the prosthesis.
Abstract:
A method for carrying out a medical procedure using a 3-D tracking and imaging system (1600). A surgical instrument, such as a catheter, probe, sensor, pacemaker lead, needle, or the like is inserted into a living being, and the position of the surgical instrument is tracked as it moves through a medium in a bodily structure. The location of the surgical instrument relative to its immediate surroundings is displayed to improve a physician's ability to precisely position the surgical instrument. The medical procedures including targeted drug delivery, sewing sutures, removal of an obstruction from the circulatory system, a biopsy, amniocentesis, brain surgery, measurement of cervical dilation, evaluation of knee stability, assessment of myocardial contractibility, eye surgery, prostate surgery, trans-myocardial revascularization (TMR), robotic surgery, and evaluation of RF transmissions.
Abstract:
A system for carrying out surgery on a bodily structure (e.g., breast and liver) with greater precision, accuracy, comfort and minimal invasiveness. A 3-dimensional tracking and imaging system (1000) is used to obtain an accurate position of an instrument as it is maneuvered by an operator, and to mark a location on the subject bodily structure. The system is particularly advantageous for surgical procedures for biopsying and destroying tumors in bodily structures which are easily deformable.
Abstract:
A system for generating a tissue construct includes a mixing chamber, a piston chamber, a reaction chamber, and a pump. The mixing chamber is configured to receive a hydrogel solution and a cell suspension solution. The piston chamber includes a first piston and is configured to receive a mixture of the hydrogel solution and the cell suspension solution from the mixing chamber. The first piston is configured to push the mixture through one or more capillaries into the reaction chamber. The reaction is configured to receive the mixture and a cross-linking initiator. The pump is configured to move the mixture through the reaction chamber such that the mixture and the cross-linking initiator combine to form an encapsulated cell material.
Abstract:
A cardiovascular valve system including a permanent base unit that is affixed to the patient using conventional sutures or staples, and a collapsible valve having a collapsible frame that mates with the permanent base unit, and supports valve leaflets. An installed collapsible frame may be re-collapsed and disengaged from the permanent housing. A new collapsible valve is then installed, to resume the function of the prosthesis.
Abstract:
Tools for the removal and installation of exchangeable cardiovascular valves. The tools facilitate rapid exchange of a cardiovascular valve member mounted in the aortic position (retrograde exchange) or the mitral position (transapical exchange).
Abstract:
A cardiovascular valve assembly comprised of a base member and an exchangeable valve member detachably mountable thereto. The base member includes a tubular body. The valve member includes a valve frame that supports a plurality of valve leaflets. The diameter of the tubular body can be increased to receive an exchangeable valve member having larger dimensions.
Abstract:
A system for minimally invasive insertion of a bioprosthetic heart valve. The system includes a collapsible tissue-based valve system, a catheter-based valve delivery system, a surgical platform and a device tracking and visualization system. The collapsible valve system includes: (i) a permanent outer frame (10) that is affixed to the patient using conventional sutures or staples, and (ii) a collapsible valve (20) having a collapsible inner frame (21) that mates with the outer frame (10), and supports valve leaflets (13). The inner frame (21) is moved to a collapsed position and located at the previously installed outer frame (10). The inner frame (21) is then expanded to lock the inner frame (21) to the outer frame (10). The inner frame (21) may be re-collapsed and disengaged from the outer frame (10). A new collapsible valve (20) is then installed, to resume the function of the prosthesis.
Abstract:
A 3-D tracking and imaging system (1600) for tracking the position of a surgical instrument (e.g., a catheter, probe, a sensor, needle or the like) inserted into a body, and displaying a 3-D image showing the position of the surgical instrument in reference to a 3-D image of the environment surrounding the surgical instrument. The 3-D tracking and imaging system (1600) aiding a physician in the guidance of the surgical instrument inside the body.