Abstract: A thermoplastic composition includes: (a) from about 5 wt % to about 75 wt % of a polycarbonate component; (b) from about 10 wt % to about 60 wt % of a low refractive index polyester that is miscible with polycarbonate; (c) from about 10 wt % to about 30% of an inherently dissipative polymer (IDP) having a refractive index at room temperature of at least 1.50; and (d) from about 5 wt % to about 75 wt % of a copolymer comprising polycarbonate and isophthalate terephthalate resorcinol (ITR).

Abstract: A medical device has an artificial contractile structure including at least one contractile element adapted to contract a hollow body organ in such a way that said contractile element is adapted to be in a resting position or in an activated position, the activated position being defined with the contractile element constricting the hollow body organ and the resting position being defined with the contractile element not constricting the hollow body organ. The medical device further includes a tensioning device adapted to apply a force so as to tighten the contractile element around the hollow body organ. The contractile element further includes a closure for forming the contractile element into a closed loop around said hollow body organ, the closure having a plurality of lips arranged to engage the contractile element.

Abstract: A medical device has an artificial contractile structure including at least one contractile element adapted to contract a hollow body organ in such a way that said contractile element is adapted to be in a resting position or in an activated position, the activated position being defined with the contractile element constricting the hollow body organ and the resting position being defined with the contractile element not constricting the hollow body organ. The medical device further includes a tensioning device adapted to apply a force so as to tighten the contractile element around the hollow body organ, the tensioning device having a flexible transmission with a tensioning element arranged in a sheath. The sheath has an inner coiled wire coiled in a first direction, and an outer coiled wire surrounding the inner coiled wire and coiled in a second direction opposite to said first direction.

Abstract: A medical device has an artificial contractile structure including at least one contractile element adapted to contract a hollow body organ in such a way that said contractile element is adapted to be in a resting position or in an activated position, the activated position being defined with the contractile element constricting the hollow body organ and the resting position being defined with the contractile element not constricting the hollow body organ. The medical device further includes a tensioning device adapted to apply a force so as to tighten the contractile element around the hollow body organ. The medical device further includes a means for eliminating a dead zone of the contractile element when the contractile element is attached around hollow organ with a circumference of the contractile element less than a maximum possible circumference.

Abstract: A system for the amelioration of a recess (56) is disclosed, particularly of a recess in a porous, perforate material having cavities freed by the recess, said system comprising an element (2) for generating or coupling in mechanical energy, and a cylindrical collar (4, 40) having a central recess (44,45) for receiving a guide pin (8), wherein the guide pin (8), having a cannulation (35), is provided to be inserted substantially as far as the bottom of the recess (56) under positioning using a wire (52) before mechanical energy is applied, wherein the guide pin (8), in the area of the end thereof directed toward the bottom of the recess (56), is surrounded by an amelioration sleeve (7), wherein the external cylindrical jacket surface of the amelioration sleeve (7) has substantially the same external diameter as the collar (4, 40), and wherein the guide pin (8) is received movably in the central recess (44,45) such that, when mechanical energy is applied, the collar (4,40) can be moved relative to the guide pi

Abstract: A medical device is provided including an artificial contractile structure which may be used to assist the functioning of a hollow organ. The medical device includes an artificial contractile structure including at least one contractile element configured to contract an organ, in such way that the contractile element is in a resting or in an activated position, at least one actuator configured to activate the contractile structure, and at least one source of energy to power the actuator. The medical device includes a corrosion reducing system configured to reduce corrosion of the medical device.

Abstract: A system for the amelioration of a recess (56) in a porous material, said system comprising an element (2) for coupling in mechanical energy, and a cylindrical collar (4, 40) having a central recess (44,45) for a guide pin (8), wherein the pin (8), having a cannulation (35), is provided to be inserted as far as the bottom of the recess (56) using a wire (52), wherein the pin (8) is surrounded by an amelioration sleeve (7), wherein the external cylindrical jacket surface of the sleeve (7) has substantially the same external diameter as the collar (4, 40), and wherein the pin (8) is received movably in the central recess (44,45) such that, when mechanical energy is applied, the collar (4,40) can be moved relative to the guide pin (8) in the direction toward the bottom of the recess (8) while liquefying and displacing the material of the sleeve (7).

Abstract: A medical device is provided including an artificial contractile structure which may be used to assist the functioning of a hollow organ. The medical device includes an artificial contractile structure including at least one contractile element configured to contract an organ, in such way that the contractile element is in a resting or in an activated position, at least one actuator configured to activate the contractile structure, and at least one source of energy to power the actuator. The medical device includes a corrosion reducing system configured to reduce corrosion of the medical device.

Abstract: A medical device has an artificial contractile structure including at least one contractile element adapted to contract a hollow body organ in such a way that said contractile element is adapted to be in a resting position or in an activated position, the activated position being defined with the contractile element constricting the hollow body organ and the resting position being defined with the contractile element not constricting the hollow body organ. The medical device further includes a tensioning device adapted to apply a force so as to tighten the contractile element around the hollow body organ. The medical device further includes a means for eliminating a dead zone of the contractile element when the contractile element is attached around hollow organ with a circumference of the contractile element less than a maximum possible circumference.

Abstract: A medical device has an artificial contractile structure including at least one contractile element adapted to contract a hollow body organ in such a way that said contractile element is adapted to be in a resting position or in an activated position, the activated position being defined with the contractile element constricting the hollow body organ and the resting position being defined with the contractile element not constricting the hollow body organ. The medical device further includes a tensioning device adapted to apply a force so as to tighten the contractile element around the hollow body organ. The contractile element further includes a closure for forming the contractile element into a closed loop around said hollow body organ, the closure having a plurality of lips arranged to engage the contractile element.

Abstract: A medical device including an artificial contractile structure which may be advantageously used to assist the functioning of a hollow organ. Specifically, the medical device includes an artificial contractile structure with at least one contractile element adapted to contract an organ, in such way that the contractile element is in a resting or in an activated position, at least one actuator designed to activate the contractile structure, and at least one source of energy for powering the actuator. The medical device also includes a means for reducing corrosion of the medical device hence reducing the risk of the device dysfunction and patient contamination.

Abstract: A medical device has an artificial contractile structure including at least one contractile element adapted to contract a hollow body organ in such a way that said contractile element is adapted to be in a resting position or in an activated position, the activated position being defined with the contractile element constricting the hollow body organ and the resting position being defined with the contractile element not constricting the hollow body organ. The medical device further includes a tensioning device adapted to apply a force so as to tighten the contractile element around the hollow body organ, the tensioning device having a flexible transmission with a tensioning element arranged in a sheath. The sheath has an inner coiled wire coiled in a first direction, and an outer coiled wire surrounding the inner coiled wire and coiled in a second direction opposite to said first direction.

Abstract: Medical device including an artificial contractile structure including at least one contractile element adapted to contract a hollow body organ, in such a way that the contractile element is adapted to be in a resting position or in an activated position, the activated position being defined with the contractile element constricting the hollow body organ and the resting position being defined with said contractile element not constricting the hollow body organ. The medical device can include a tensioning device adapted to apply a force so as to tighten the contractile element around said hollow body organ. The tensioning device can be arranged to cause the contractile element to apply a substantially uniform occlusive pressure of at most 8N/cm2, along the circumference of the contact area between the contractile element and the hollow body organ when the contractile element is in its activated position.

Abstract: A system for the amelioration of a recess (56) in a porous material, said system comprising an element (2) for coupling in mechanical energy, and a cylindrical collar (4, 40) having a central recess (44,45) for a guide pin (8), wherein the pin (8), having a cannulation (35), is provided to be inserted as far as the bottom of the recess (56) using a wire (52), wherein the pin (8) is surrounded by an amelioration sleeve (7), wherein the external cylindrical jacket surface of the sleeve (7) has substantially the same external diameter as the collar (4, 40), and wherein the pin (8) is received movably in the central recess (44,45) such that, when mechanical energy is applied, the collar (4,40) can be moved relative to the guide pin (8) in the direction toward the bottom of the recess (8) while liquefying and displacing the material of the sleeve (7).

Abstract: A medical device including an artificial contractile structure, which may be advantageously used to assist the functioning of a hollow organ, is provided. The medical device includes an artificial contractile structure including at least one contractile element adapted to contract an organ in such a way that the contractile element is in a resting or in an activated position; at least one actuator designed to activate the contractile structure; and at least one source of energy for powering the actuator. The actuator includes an electromotor and a transmission element linking the electromotor to the contractile element, the transmission element being configured to transmit to the contractile element a force induced by the electromotor.

Abstract: A medical device including an artificial contractile structure which may be advantageously used to assist the functioning of a hollow organ. Specifically, the medical device includes an artificial contractile structure with at least one contractile element adapted to contract an organ, in such way that the contractile element is in a resting or in an activated position, at least one actuator designed to activate the contractile structure, and at least one source of energy for powering the actuator. The medical device also includes a means for reducing corrosion of the medical device hence reducing the risk of the device dysfunction and patient contamination.

Abstract: A medical device includes an artificial contractile structure which may be advantageously used to assist the functioning of a hollow organ, an artificial contractile structure including at least one contractile element (100) adapted to contract an organ, in such way that the contractile element (100) is in a resting or in an activated position, at least one actuator designed to activate the contractile structure, and at least one source of energy for powering the actuator. The ratio “current which is needed to maintain the contractile element in its activated position and in its resting position/current which is needed to change the position of the contractile element” is less than 1/500, preferably less than 1/800, and more preferably less than 1/1000. The medical device further includes elements for reducing corrosion of the medical device.

Abstract: A medical device including an artificial contractile structure, which may be advantageously used to assist the functioning of a hollow organ, is provided. The medical device includes an artificial contractile structure including at least one contractile element adapted to contract an organ in such a way that the contractile element is in a resting or in an activated position; at least one actuator designed to activate the contractile structure; and at least one source of energy for powering the actuator. The actuator includes an electromotor and a transmission element linking the electromotor to the contractile element, the transmission element being configured to transmit to the contractile element a force induced by the electromotor.

Abstract: Medical device including an artificial contractile structure including at least one contractile element adapted to contract a hollow body organ, in such a way that the contractile element is adapted to be in a resting position or in an activated position, the activated position being defined with the contractile element constricting the hollow body organ and the resting position being defined with said contractile element not constricting the hollow body organ. The medical device can include a tensioning device adapted to apply a force so as to tighten the contractile element around said hollow body organ. The tensioning device can be arranged to cause the contractile element to apply a substantially uniform occlusive pressure of at most 8N/cm2, along the circumference of the contact area between the contractile element and the hollow body organ when the contractile element is in its activated position.

Abstract: A medical device including artificial contractile structures generally devised to be used in the medical field. Such structures may be advantageously used to assist the functioning of an organ. The medical device includes an artificial contractile structure having at least two contractile elements (100) adapted to contract an organ, in such way that each of the contractile elements (100) can be in a resting or in an activated position, independently of the position of each other, the activated position being defined with the contractile element (100) constricting the organ and the resting position being defined with the contractile element (100) not constricting the organ, and at least one actuator designed to activate the contractile structure. Each contractile element (100) is connected to an adjacent contractile element (100), while remaining flexible one with respect to the other.