This technology includes structures and methods for cinching a band around the heart for treating conditions including tricuspid valve regurgitation (TR). When positioned appropriately along the atrioventricular groove, the band is tightened around the heart which narrows the tricuspid annulus and relieves TR.
This technology includes a peptide containing alternating Alanine and Lys(DOTA-Gd) residues can be used to increase the MRI relaxivity of a peptide. The low molecular weight construct can be appended to proteins, antibodies and peptides to increase MRI signals. This approach offers advantages over previous dendrimeric constructs.
This technology includes a family of transcatheter endovenous intramyocardial tether (MIRTH) procedures to impose myocardial constraint on the LV (MIRTH), LV and RV (SCIMITAR), and cardiac resynchronization procedures. Included is a set of advanced cardiac treatment technologies that focus on minimally invasive procedures for heart patients. The main technology is the transcatheter endovenous intramyocardial tether (MIRTH) procedure, which is designed to apply physical constraint to the left ventricle (LV) of the heart.
This technology includes a novel transcatheter repair for functional mitral valve regurgitation, called mitral cerclage annuloplasty. This includes coronary artery protection for mitral cerclage annuloplasty against inside-out compression from subsequent transcatheter valve-in-ring mitral valve implantation, wherein the ring is created by the cerclage annuloplasty. Cerclage annuloplasty is to create a semi-rigid ring at the level of the mitral annulus.
This technology includes a metallic guidewire that is suitable for MRI catheterization, because it is mechanically long but electrically consists of short conductive segments that cannot resonate during MRI. The invention consists of stiffness-matched non-conductive connectors or connections that are used along with short metallic segments. The embodiment reduced to practice has torquability and flexibility comparable to marketed metallic guidewires, yet is free from MRI heating.
This technology includes a catheter design to be used for cardiovascular procedures. This catheter has intrinsic freedom from MRI heating by segmenting and insulating the braiding material, yet that retains most of the mechanical properties of a braided catheter aligning the segment interruptions out-of-phase with each other.
Medical clamps currently available are not efficient nor are they sufficiently precise in closure and alignment of the edges of an incision or wound. Many available designs are difficult to use and handle, especially in situations where repeated opening and closure of an incision or wound is required. The functional short-comings of existing clamp designs may result in surgical complications, such as excess loss of fluids and pressure and hemostasis during some procedures.
The accurate placement of transplanted tissue at a precise position in the retina is difficult but critical for a successful implementation of an ocular surgical intervention.
The culture of mouse embryos ex utero and continuous monitoring and imaging of embryos as they develop have applications in drug testing, genetic studies, and basic research on embryonic development. However, the embryo culture systems currently available for post-implantation embryos include rolling bottle culture systems, which do not permit imaging of the developing embryos and do not support the long-term survival and development of embryos ex utero.
This technology includes a guidewire purpose-built for delivery of bulky transcatheter heart valves (THV). Conventional THV guidewires are rigid and have a distal tip shaped like a pigtail to prevent apical ventricular perforation. This invention is a 3-dimensional helical or antihelical curve that can protect against apical perforation, possibly better, and that allows subtle 3-mensional deflection to aid the operator in achieving coaxiality or overcoming delivery obstacles such as calcific spicules.