摘要:
Medical implant which at least partially comprises a biocompatible, electrically conductive polymer with electrical resistivity p, having the property of being able to be heated and softened by a flow of current through the polymer.
摘要:
A medical implant is for insertion into a bone. The medical implant may include a zone having a polymer material configured to transition from a solid condition to a softened condition when exposed to electromagnetic radiation, and be flowable into interspaces of the bone in the softened condition. The medical implant may include a light-conducting portion configured to conduct the electromagnetic radiation from a radiation source to the zone when the medical implant is inserted into the bone.
摘要:
Medical implant which at least partially comprises a biocompatible, electrically conductive polymer with electrical resistivity p, having the property of being able to be heated and softened by a flow of current through the polymer.
摘要:
A vehicle that includes a vehicle frame having a steering device, a first vehicle wheel fastened to the steering device, one or more second vehicle wheels fastened to the vehicle frame, a braking device, and a drive device having a pedal crank that can be driven by pedals. The vehicle further includes a freewheel clutch and an optionally engageable reverse gear mechanism. When the freewheel clutch is in an engaged state in a drive mode during the forward movement of the pedals, force is transmitted from the drive device to at least the second vehicle wheel. The freewheel clutch can be switched from the drive mode into a braking mode when the reverse gear mechanism is in the engaged state so that, in the braking mode, the pedal crank and the at least one second vehicle wheel are connected to each other in a torsionally rigid manner.
摘要:
A medical implant for insertion into bone including a zone sensitive to electromagnetic radiation from a radiation source, the zone comprising a polymer material configured to transition from a solid condition to a softened condition when the zone is exposed to the electromagnetic radiation and being flowable into interspaces of the bone in the softened condition, and a light-conducting portion configured to conduct the electromagnetic radiation from the radiation source to the zone when the medical implant is inserted into the bone.
摘要:
Medical implant at least partially consisting of a polymer, where: A) It consists only partially of one or several polymers compatible with the body, which are at least partially containing a colored substance, a reflecting coating or a self-colored; or B) It consists wholly of one or several polymers compatible with the body, whereof only a part contains a colored substance, a reflecting coating or a self-colored; or C) It comprises one or several polymers compatible with the body, which are at least partially coated with a color layer or a reflecting layer, or D) It presents at least a part of a polymer without a coating, which is capable of receiving appropriate colored substances if put in contact with color containing body fluids, so that E) The colored or color containing polymers (A), or those polymer layers that border on the reflecting coatings (A), the color substance receiving coatings (D) or the coatings consisting only of a color layer can be warmed-up and softened by electromagnetic radiation, while the remaining parts of the implant maintain their strength.
摘要:
A device for the propulsion and eccentric braking of a vehicle having a pedal drive, which includes a first shaft, a drive mechanism including one or a plurality of chain wheels, belt pulleys or elements of a Cardan drive, a second hollow shaft arranged concentrically about the first shaft mounted into a rear wheel, a freewheel clutch mounted between the first shaft and the drive mechanism, and an optionally engageable reverse gear mechanism mounted between the first and the second shaft. The first and the second shafts are connected to each other in a torsionally rigid manner when the reverse gear mechanism is in the engaged and disengaged state. The freewheel clutch prevents a rotation of the drive mechanism relative to the first shaft in a clockwise direction and is in a freewheeling state when the drive mechanism rotates in a counter-clockwise direction relative to the first shaft.
摘要:
Medical implant at least partially consisting of a polymer, where: A) It consists only partially of one or several polymers compatible with the body, which are at least partially containing a colored substance, a reflecting coating or a self-colored; or B) It consists wholly of one or several polymers compatible with the body, whereof only a part contains a colored substance, a reflecting coating or a self-colored; or C) it comprises one or several polymers compatible with the body, which are at least partially coated with a color layer or a reflecting layer, or D) It presents at least a part of a polymer without a coating, which is capable of receiving appropriate colored substances if put in contact with color containing body fluids, so that E) The colored or color containing polymers (A), or those polymer layers that border on the reflecting coatings (A), the color substance receiving coatings (D) or the coatings consisting only of a color layer can be warmed-up and softened by electromagnetic radiation, while the remaining parts of the implant maintain their strength.
摘要:
A fixation implant tightly secures ligament transplants and the like on or in bone tissue. The fixation implant has an elongate body, which has a front end for application and includes at least in some areas an expandable material which, after the implantation, exerts an expansion pressure on a surrounding bone substance. The body has an outer wall, which is provided at least in some areas with profiles extending substantially transverse to the longitudinal extent. The body is provided at its rear end with an engagement means for an insertion instrument, or it has an opening into a central recess for an expansion body. The expandable material is arranged substantially along the entire longitudinal extent of the body. The expandable material can exert pressure on the profiled areas in such a way that the external diameter of the body increases.