摘要:
Improved systems and methods for producing dental restorations and ceramic materials for such restorations are disclosed. Optical properties, preferably including color and translucence characteristics, of a tooth or teeth of a patient are measured with a shade measuring instrument. The tooth to be restored is prepared, and a physical or virtual dental impression is created. A prescription for the restoration, which typically includes color, translucence and thickness information, is sent to the restoration fabrication facility either electronically or physically. A recipe and/or a mixture of ceramics are generated for the restoration, with multiple layers being specified, based on the measured optical properties. The recipe algorithm may adapt, or process checks may be performed, based on measurements of fabricated layers. Preferably, dental ceramics are specified to bracket the region of color space relevant to human teeth, and a reduced set of ceramic materials are manufactured and distributed. Based on measured optical characteristics of the ceramic materials, recipes and/or material mixtures are specified or prepared for the restoration. A virtual impression data file may be transmitted to the laboratory instead of a physical impression.
摘要:
The present invention is directed to an electrically activated thermally inserted fastener assembly for use in a surgical procedure for securing a first component to a second component. The fastener assembly in accordance with the present invention comprises a securing assembly for securing the first component to the second component, and insertion assembly for inserting the securing assembly through the first component and at least a portion of the second component. A heat transmitting portion of the fastener assembly burns an incision in the first and second component to permit insertion of the fastener.
摘要:
The present invention relates generally to a surgical instrument. In particular, the present invention relates to a fastener remover for use during the repair of abdominal aortic aneurysms. The fastener remover, in accordance with an embodiment of the present invention, comprises an outer catheter, an inner sheath, and a gripping member. The outer catheter comprises a hollow passage with a proximal end and a distal end. The inner sheath is disposed within the hollow passage of the outer catheter, extending from the outer catheter's proximal end to the distal end. The gripping member is located within the inner sheath, extending from the outer catheter's proximal end to the distal end. The gripping member comprises a connector portion connected to an elongated stem.
摘要:
The present invention is directed to a fastener assembly for use during a surgical procedure for securing a first component to a second component. The fastener assembly includes a fastening assembly for securing the first component to the second component under a force. The fastening assembly has a first portion located on one side of the first component and the second component, a second portion located on another side of the first component and the second component, and an intermediate portion connecting to the first portion and the second portion. The intermediate portion extends through the second component and the first component. The first portion, the second portion and the intermediate portion act to apply a compressive force to the first component and the second component to secure the first component to the second component. In accordance with the present invention, at least one of the first portion, the second portion and the intermediate portion of fastening assembly is flexible.
摘要:
A securement device includes a retainer having at least one retention member extending into a channel of the retainer. The retention member is coupled to the retainer and includes a distal end. The distal end is movable relative to the retainer. The retention member can extend from the body and/or supports of the retainer on opposite sides of the channel axis. In some embodiments, a first set of retention members extends from a first support and a second set of retention members extends from the other support. The first set and the second set of retention members can be staggered laterally along the channel axis such that the lateral sides of the retainer are asymmetric which allow the same retainer to secure medical article having different shapes and sizes. The retainer may further include one or more abutment features or pills configured to contact the medical article.
摘要:
The present invention is directed to a surgical guide line assembly (10) for use during a surgical procedure. The surgical guide assembly (10) permits the manipulation of a surgical component with a vessel during a surgical procedure, such as for example an intravascular procedure. The surgical guide line assembly (10) includes a guide line component (11) having a proximal end and a distal end, and at least one suture (12) secured to the distal end of the guide line component (11). The present invention is also directed to a surgical separator assembly (60) for use in separating at least two surgical components during a surgical procedure in a vessel.
摘要:
The present invention is directed to a suture support assembly for use during a surgical procedure. The suture support assembly in accordance with the present invention includes an elongated main body portion, and a proximal end portion having a passageway formed therein for receiving at least one suture therein. The proximal end portion and at least a portion of the elongated main body portion are adapted to be located within a vessel during the surgical procedure. The suture support assembly may be inserted into the vessel via an axillary incision, a brachial incision, or a femoral or a common iliac arteriotomy, and may be used in connection with the repair of an abdominal aortic aneurysm.
摘要:
A graft repair system for use in the repair of an aneurysm within a vessel is disclosed. The graft repair system includes a graft assembly and a support assembly for supporting the graft assembly within the vessel. The graft assembly may include a tubular portion having proximal and distal ends. The graft assembly may be bifurcated. The graft assembly may further comprise a distal graft assembly. The support assembly includes at least one attachment assembly for attaching the graft assembly to a vessel wall. The support assembly further includes a connecting assembly for connecting the attachment assembly to the proximal end of the graft assembly, such that the attachment assembly extends cephalad from the proximal end of the graft assembly. The support device further includes a securing assembly for securing the connecting assembly to the proximal end of the graft assembly.
摘要:
A securement device includes a retainer having at least one retention member extending into a channel of the retainer. The retention member is coupled to the retainer and includes a distal end. The distal end is movable relative to the retainer. The retention member can extend from the body and/or supports of the retainer on opposite sides of the channel axis. In some embodiments, a first set of retention members extends from a first support and a second set of retention members extends from the other support. The first set and the second set of retention members can be staggered laterally along the channel axis such that the lateral sides of the retainer are asymmetric which allow the same retainer to secure medical article having different shapes and sizes. The retainer may further include one or more abutment features or pills configured to contact the medical article.
摘要:
Several embodiments of a penetration apparatus and methods for using the same during a surgical procedure are disclosed. The penetration apparatus comprises a thin elongated body having a first end, a second end, and a central longitudinal axis extending there between. The first end opposes the second and is aligned within a vessel matrix during the surgical procedure. The second end of the body is substantially free and may be rotated around the axis. The penetration apparatus may also be housed within a catheter that has a cavity that precisely accommodates the penetration apparatus. Activation and advancement of the penetration apparatus within the catheter forms an incision through a vessel matrix enabling the placement of a fastener or a plurality of fasteners therein.