摘要:
A surgical procedure for preparing a graft for insertion in an opening in a human body, according to which a mold is formed in the opening and transferred from the opening to a position adjacent a stylus. A contour of the mold is traced with the stylus; and the tracing movement of the stylus is transferred to corresponding movement of a cutting member so that the cutting member cuts the same contour in the graft.
摘要:
Apparatus and methods for assessing tissue characteristics such as the dimensions and volume of an osteolytic lesion are disclosed. The apparatus may utilize ultrasound to provide visual and volumetric feedback related to a lesion or other tissue. Further the apparatus may be utilized to determine whether the lesion has been completely removed and filled with the appropriate amount of graft material.
摘要:
A system for detecting the integrity of a previously implanted prosthetic device may include a detector including a sensor configured to detect signals from the implant and securing means for securing the sensor in a sensing position relative to the implantable device. The system also may include a power source configured to provide power to the sensor and a computation means for processing data communicated by the detector and for displaying the processed data for diagnosing.
摘要:
Apparatus and methods for assessing tissue characteristics such as the dimensions and volume of an osteolytic lesion are disclosed. The apparatus may utilize ultrasound to provide visual and volumetric feedback related to a lesion or other tissue. Further the apparatus may be utilized to determine whether the lesion has been completely removed and filled with the appropriate amount of graft material.
摘要:
A surgical instrument for the presence and/or location of a foreign body is disclosed. The surgical instrument is hand-held. In some embodiments, the surgical instrument includes transducers adapted for emitting and/or receiving signals. In such embodiments, the surgical instrument utilizes pulse-echo measurements to determine characteristics and/or location of the foreign body. In other embodiments, the surgical instrument includes a measurement circuit for detecting the presence and/or location of a foreign body by a change in the characteristics of the measurement circuit. The surgical instrument may be utilized to determine such things as the size of a foreign body, the orientation of a foreign body with respect to patient anatomy and/or another foreign body, and whether the foreign body has been completely removed.
摘要:
A device for trimming an osteochondral plug graph to an implantable configuration, comprises a blade assembly terminating in a configured leading cutting blade and a plug graft housing comprising a substantially longitudinal holding sleeve having a bore and oriented complementarily to the longitudinal structure of the blade assembly to receive the longitudinal structure within the sleeve bore with the assembly cutting blade in close tolerance along an inner bore surface of the longitudinal housing structure.
摘要:
A chisel system for harvesting an implantable graft from an area of a human having a cartilage overlying a condyle, according to which a module is provided that has one end connected to a handle. A cutting surface is formed at the other end of the module that cuts through the cartilage and condyle.
摘要:
A surgical procedure and a device used in the procedure according to which one end portion of a guide rod is inserted into the condyle of a damaged area of a human. The rod is used as a guide for a drill bit and a chisel to cut an opening in the condyle.
摘要:
A device for trimming an osteochondral plug graft to an implantable configuration, comprises a blade assembly terminating in a configured leading cutting blade and a plug graft housing comprising a substantially longitudinal holding sleeve having a bore and oriented complementarily to the longitudinal structure of the blade assembly to receive the longitudinal structure within the sleeve bore with the assembly cutting blade in close tolerance along an inner bore surface of the longitudinal housing structure.
摘要:
A surgical procedure for preparing a damaged area of a human knee to receive at least one graft, according to which a moldable material is positioned over the damaged area and removed after it hardens. The mold is used as a template to determine the number and/or a dimension of the openings to be formed in the damaged area for receiving corresponding grafts.