Abstract:
A spine alignment system is provided to assess load forces on the vertebra in conjunction with overall spinal alignment. The system includes a spine instrument having an electronic assembly and a sensorized head. The sensorized head can be inserted between vertebra and report vertebral conditions such as force, pressure, orientation and edge loading. A GUI is therewith provided to show where the spine instrument is positioned relative to vertebral bodies as the instrument is placed in the inter-vetebral space. The system can distract vertebrae to a first height and measure the load applied by the spine region. The GUI can indicate that the load is outside a predetermined range. The spine region can be distracted to a second height where the load is measured within the predetermined load range.
Abstract:
At least one embodiment is directed to an insert sensing device for measuring a parameter of the muscular-skeletal system. The insert sensing device can be temporary or permanent. The insert sensing device is a self-contained encapsulated measurement device. The insert sensing device comprises a support structure having an articular surface for allowing articulation of the muscular-skeletal system and a support structure having a load bearing surface. The structures attach together to form a housing that includes one or more sensors, a power source, electronic circuitry, and communication circuitry. The electronic circuitry, power source, and communication circuitry are placed in a cavity of the insert sensing device that is unloaded or lightly loaded by the muscular-skeletal system. Shims can be attached to the load-bearing surface to adjust the height of insert sensing device.
Abstract:
At least one embodiment is directed to an insert for measuring a parameter of the muscular-skeletal system. The insert can be temporary or permanent. In one embodiment, the insert is prosthetic component for a single compartment of the knee. The insert comprises a support structure and a support structure respectively having an articular surface and a load bearing surface. The height of the insert is less than 10 millimeters. At least one internal cavity is formed when support structures are coupled together for housing electronic circuitry, sensors, and the power source. The cavity can be sterilized through a port. A membrane is between the port and the cavity. A sterilization gas permeates the membrane for sterilizing cavity. The membrane reduces the ingress of solids and liquids to the cavity.
Abstract:
A system for enabling a medical device. The system includes a cradle having a magnet for generating a magnetic field. The cradle supports and aligns the medical device in a predetermined orientation. Medical device placed in the cradle exposes a magnetic sensitive switch to the magnetic field of the magnet that produces a change in state of the magnetic sensitive switch. Medical device further includes a switch, indicator, logic circuitry, delay circuit, and detect circuit for coupling a power source to electronic circuitry. In a first mode of operation the medical device can be turned on and then turned off. In a second mode of operation the medical device cannot be turned off after being turned on.
Abstract:
A measurement system for capturing a transit time, phase, or frequency of energy waves propagating through a propagation medium (702) is disclosed. The measurement system comprises two different closed-loop feedback paths. The first path includes a transducer driver (726), a transducer (704), a propagation structure (702), a transducer (706), and a zero-crossing receiver (740). The series and parallel resonance of the transducer (704) does not overlap the series and parallel resonance of the transducer (706). A second path includes a transducer driver (1126), a transducer (1104), a propagation medium (1102), a reflecting surface (1106), and an edge-detect receiver (1140). Each positive closed-loop path maintains the emission, propagation, and detection of energy waves in the propagation medium (702, 1102). In either path, a propagation tuned oscillator maintains positive closed-loop feedback of the system that sustains detection, emission, and propagation of energy waves or pulses in a medium.
Abstract:
A prosthetic component suitable for long-term implantation is provided. The prosthetic component includes electronic circuitry and sensors to measure a parameter of the muscular-skeletal system. The prosthetic component comprises a first structure having at least one support surface, a second structure having at least one feature configured to couple to bone, and at least one sensor. The electronic circuitry and sensors are hermetically sealed within the prosthetic component. The prosthetic component includes at least on transmissive region. The transmissive region can be located in a region that has exposure to a region outside the joint. The transmissive region can comprise glass. One or more sensors can be used to monitor synovial fluid in proximity to the joint to determine joint health. The transmissive region can be used to support communication between the electronic circuitry and remote system.
Abstract:
A measurement system for capturing a transit time, phase, or frequency of energy waves propagating through a propagation medium is disclosed. The measurement system comprises a compressible waveguide (403), ultrasonic transducers (405, 406), and circuitry to sustain energy wave propagation in the waveguide (403). The circuitry includes a propagation tuned oscillator (404), a digital counter (409), a pulse generator (410), a phase detector (414), a counter (420), a digital timer (422), and a data register (424). The measurement system employs a continuous mode (CM), pulse mode, or pulse-echo mode of operation to evaluate propagation characteristics of continuous ultrasonic waves in the waveguide by way of closed-loop feedback to determine levels of applied forces on the waveguide.
Abstract:
A measurement system for capturing a transit time, phase, or frequency of energy waves propagating through a propagation medium is disclosed. The measurement system comprises a compressible waveguide (403), ultrasonic transducers (405, 406), and circuitry to sustain energy wave propagation in the waveguide (403). The circuitry includes a propagation tuned oscillator (404), a digital counter (409), a pulse generator (410), a phase detector (414), a counter (420), a digital timer (422), and a data register (424). The measurement system employs a continuous mode (CM), pulse mode, or pulse-echo mode of operation to evaluate propagation characteristics of continuous ultrasonic waves in the waveguide by way of closed-loop feedback to determine levels of applied forces on the waveguide.
Abstract:
A sensing insert device (100) is disclosed for measuring a parameter of the muscular-skeletal system. The sensing insert device (100) can be temporary or permanent. The sensing module (200) is a self-contained encapsulated measurement device having at least one contacting surface that couples to the muscular-skeletal system. The sensing module (200) comprises one or more sensing assemblages (1802), electronic circuitry (307), an antenna (2302), and communication circuitry (320). The sensing assemblages (1802) are between a top plate (1502) and a bottom plate (1504) in a sensing platform (121). The bottom plate (1504) is supported by a ledge (1708) on an interior surface of a sidewall (1716) of a housing (1706). A cap (1702) couples to top plate (1502). The cap (1702) is adhesively coupled to the housing (1706). The adhesive is flexible allowing movement of the cap (1702) when a force, pressure, or load is applied thereto.
Abstract:
One or more disposable devices suitable for use in a surgical field of an operating room are disclosed. One device comprises a sensor (101) communicatively coupled to the wand (102) to register points of interest on a first or second bone of the muscular-skeletal system and transmits location data related to the points of interest to the sensor (101) to assess orthopedic alignment with the points of interest. A display (150) having a GUI (152) are coupled to the devices for providing device and surgical information in real-time. A communication device (104) includes display (150) and a digital signal processor (154). A transducer (142) receives vocal commands (140) for generating an action (146) that produces an operative change in the devices or display (150). The DSP (154) includes voice recognition software (144) for identifying words or phrases to produce an action (146) that are received by the transducer (142).