摘要:
A prosthetic valve including an inner frame, an outer frame, and a connection assembly interconnecting the frames. The inner frame defines an interior volume for receiving a valve structure within the interior volume. The outer frame surrounds the inner frame. The inner and outer frames are each configured to be transitionable between compressed and expanded conditions. The prosthetic heart valve provides a initial deployed state in which the inner and outer frames are in the expanded condition, and a radial shape of the outer frame is adjustable via the connection assembly to a final deployed state. A shape of the outer frame can be adjusted upon implant to enable radial anchoring at the native annulus, while addressing possible non-uniformities of the native annulus and possible anatomical concerns such as LVOT obstruction.
摘要:
A positioning support device (3) is proposed for positioning a surgical mesh (4) in a tissue wall (2) having a defect (201), the surgical mesh (4) being removably fixable to the support device (3). The support device (3) comprises: a central body (301) comprising at least one magnetic or magnetisable element (302), adapted to allow the movement of said support device (3) by means of a corresponding body (5), placed outside the tissue wall (2); at least three threadlike elements (303) fixed to the central body (301) and arranged around it, each being made of a flexible material devoid of magnetic properties and which retains a shape memory; wherein each threadlike element (303) has a diameter such that it can be inserted through the meshings (405) of the surgical mesh (4), and has a length such that it may enter in the respective first meshing (403) of the surgical mesh (4) from a second surface (402) to a first surface, and exit from a respective second meshing (404) of the surgical mesh (4) from the first surface (401) to the second surface (402). The support device (3) has a closed configuration for extraction, and an open configuration, in which the threadlike elements (303) are spaced apart. The support device (3) comprises a stopper element (307) for each threadlike element (303), adapted to abut said first meshing (403) and stopping a sliding of the threadlike element (303) through the meshings, keeping the surgical mesh extended in the open configuration.
摘要:
A method of manufacturing an artificial muscle fiber device includes: tethering an artificial muscle fiber around one or more shape-setting pieces; annealing the artificial muscle fiber so that the artificial muscle fiber will retain specific shapes established by the shape-setting pieces; and removing the shape-setting pieces from the artificial muscle fiber.
摘要:
This invention relates generally to systems and causes methods for enhancing hearing in patients suffering from conductive hearing loss and/or sensorineural hearing loss. After going through the background of invention the clinical presentation of patients who would benefit from ossiculoplasty is quite variable. Conductive hearing loss may be the result of ossicular erosion or fixation from chronic ear disease, blunt or penetrating trauma, or congenital or neoplastic causes. It may also be associated with inner ear causes. These inner ear include superior semicircular canal dehiscence and an enlarged vestibular aqueduct. The said prosthesis is designed in such a way that once implanted it will work till lifetime of patient without any external source of electrical energy, this prosthesis overcome all the limitations of the middle ear implant designed till date.
摘要:
A garment for retaining a prosthesis assembly includes a sleeve configured to encase at least a portion of a limb and at least a portion of a prosthesis for the limb. The garment further includes tension bands extending along the sleeve and configured to secure the prosthesis to the limb. Another exemplary garment is a body suit including a pant leg configured to encase at least a portion of a leg and at least a portion of a leg prosthesis. The body suit further includes tension bands integrally extending from the pant leg along a torso portion of the body suit and around a shoulder portion of the body suit and configured to secure the leg prosthesis to the leg.
摘要:
Sealable and repositionable implant devices are provided to increase the ability of endovascular grafts and valves to be precisely deployed or re-deployed, with better in situ accommodation to the local anatomy of the targeted recipient anatomic site, and with the ability for post-deployment adjustment to accommodate anatomic changes that might compromise the efficacy of the implant. A surgical implant includes a self-expanding stent of a shape-memory material set to a given shape. The stent has a wall with a portion having a first thickness and a second portion having a thickness greater than the first. The second portion defines a key-hole shaped longitudinal drive orifice. The implant includes a selectively adjustable assembly having adjustable elements and being operable to force a configuration change in at least a portion of the self-expanding stent. The adjustable elements have a part rotatably disposed within the longitudinal drive orifice.
摘要:
The invention relates to a prosthesis (1) comprising a textile (2) of elongate shape defining a longitudinal axis A, and a reinforcing element comprising at least one semi-rigid elongate structure (8) connected to said textile, said structure being substantially parallel to said longitudinal axis A and having a distal end provided with at least one fastening element (4) distinct from said textile and capable of cooperating with a part of a tool (10) that is able to pass through said trocar, in order to temporarily couple said prosthesis to said tool.
摘要:
A helical stent includes a central segment having a first tubular waveform and a first end segment having a second tubular waveform. The waveforms are defined by a plurality of struts and a plurality of crowns connecting adjacent struts together. The struts of the second tubular waveform have different lengths such that second tubular waveform includes a plurality of amplitudes. The second tubular waveform comprises a complete turn around a longitudinal axis of the stent. A first connector connects together the first tubular waveform first end, the second tubular waveform first end, and the second tubular waveform second end. Due to the configuration of the second tubular waveform of the first end segment, the stent end at the first end segment is substantially orthogonal to the longitudinal axis of the stent. A second end segment similar to the first end segment can be connected to a second end of the first tubular waveform.
摘要:
Stents for insertion into bodily lumens are disclosed. The stents comprise at least one strand that form self-expanding tubular structures. The strand or strands form a plurality of intersections at which a first portion of a strand is in proximity to another portion of the same or different strand. The stents further include a plurality of reinforcement members, each of which are located at one of the intersections.
摘要:
The invention provides a multi-component (modular) percutaneous valve device that includes a valve module having valve leaflets and a valve frame. The valve frame includes one or more, for example two, ring members and a plurality of masts. Also provided is a valve frame having specially designed pivot points at the connection between masts and first and second ring members to assist folding the valve module and minimizing delivery diameter. The valve frame may also include wire guides to facilitate combining the valve module with a support module. The masts or a ring of the valve frame may also include locking members, such as shafts for closing the valve module and securing the valve module to the support module. The support module includes corresponding locking members, such as spears that align with the shafts on the valve module for assembly and locking the valve module to the support module.