831results about How to "Facilitate surgery" patented technology

Semi-autonomously executed routines accomplish the primary functions of electrosurgical energy delivery on a responsive basis for power control purposes and to adapt the delivered output waveform to perform new and better surgical procedures. The routines include and output voltage and output current sampling routine, a control routine for establishing the width of drive pulses used to create the output waveform, a pattern generation routine for establishing the pattern of drive pulses to be delivered in one mode cycle established by a selected mode of operation, a pattern delivery routine for repeatedly delivering sequences of the mode cycle pattern of drive pulses, and a power supply control routine for varying the voltage of the drive pulses in coordination with varying the width of the drive pulses.

Air based emergency monitor, multimode communication, control and position finder system with a receiver having multiple inputs for reception and demodulation of position finder signals to position finder baseband signals. One or more cameras or microphones or data signal generation devices, storage devices, and processors for recording or storing and processing of signals obtained from one or more cameras or microphones or data signal generation devices. A processor for processing input signals and for providing cross-correlated shaped in-phase and quadrature-phase baseband signals. Transceivers for multimode GSM, spread spectrum, CDMA, OFDM, TDMA and other signals. A receiver and demodulator for reception of modulated position finder radio frequency (RF) signals transmitted by a Global Positioning System (GPS) transmitter and a receiver and demodulator for reception of modulated position finder radio frequency (RF) signals transmitted by other than a GPS transmitter for providing the demodulated and receiver processed signal to an emergency unit. An air based position finding, signal monitor, control and emergency multimode communication system for use in one or more units located in or on airplanes, or helicopters, or unmanned vehicles (UV) or balloons or rockets, or missiles, or space shuttles or birds or other air based items with a multimode bit rate agile (BRA) and modulation demodulation (modem) format selectable (MFS) signal modulator.

Global Positioning System (GPS) and non GPS position finder, emergency, multiple input multiple output (MIMO), multimode, spread spectrum, code division multiple access (CDMA), Global Mobile System or Global System Mobile (GSM) and orthogonal frequency division multiplex (OFDM) communication systems. Position finder and emergency communication multiple input multiple output (MIMO) system and a receiver having multiple inputs for reception and demodulation of position finder signals to position finder baseband signals. A processor for processing position finder signals with a signal containing an emergency number. A processors for processing signals to provide cross-correlated shaped in-phase and quadrature-phase baseband signals, spread spectrum and OFDM baseband signals. A control unit for control and selection of one of the jointly processed signals and a selector for providing the selected signal to a modulator. A modulator for modulating the selected signal and for connecting the modulated signal to a multiple output signal transmitter for signal transmission. A demodulator connected to the emergency receiver for demodulation of the modulation format selectable (MFS) and bit rate agile (BRA) modulated signal with at least one demodulator filter which has a mis-match with the corresponding filter of the modulator.

A radio frequency identification (RFID) device, locator, wired and/or wireless communicator system comprising one or more than one antennas for receiving Radio Frequency (RF) signals from one or more RFID and or location determining and/or communication transmitters. The system has one or more receivers and demodulators for reception and demodulation of signals to baseband signals. A processor circuit processes the baseband signals and provides them to a cross-correlator circuit for cross-correlating the processed baseband signals and for generation of cross-correlated baseband signals. One or more modulators modulate the baseband signals and provide them to one or more transmitters. circuitry.

A cervical spine fixator and a screwdriver used therefore is disclosed wherein the fixator comprises plates (12, 212) for being adjoined to a cervical spine fixation region and a plurality of screws (14, 214). The plurality of screws are fixedly inserted into a patient's cervical spine and simultaneously coupled to the plates, wherein an adjacent region coupled with the screws in the plates is fixed with screw head fixture members (16, 216) having a protruder, which is deformed under the effect of pressure by a screw head when the screws are inserted and returns to their position of origin when the screw head is completely accommodated into the plates to be hitched by the screw head. The plates are formed thereon with receiving grooves (22, 222) for accommodating the screw head and the screw head fixture member. The receiving grooves are formed with openings into which the screws are inserted and a recess into which the screw head is received. The screw (214) formed with a groove of concaved curvature is installed or removed by a screwdriver (230) formed with a protruder of convex curvature, such that it is easy to manufacture, and the thickness of the plates is reduced, thus eliminating the feeling of a foreign substance after a surgical operation.

A system is provided for positioning a cutting guide on a femur of a knee to make a cut along a distal end of the femur during knee surgery. The system may generally include an adjustable femoral attachment member configured to attach to a cut distal end of the femur, a cutting guide removably attachable to the femoral attachment member and configured to guide a surgical saw to make an additional cut on the distal end of the femur, and a force sensor for positioning between the femoral attachment member and a proximal end of a tibia of the knee. The force sensor may include a medial portion for sensing a medial force in the knee and a lateral portion for sensing a lateral force in the knee.

The invention provides an improved method of producing a natural, acellular matrix scaffold for subsequent use in tissue-engineered replacement of tissues such as the bladder. Decellularisation is carried out on an expanded or distended bladder and the product retains the strength and compliance of natural material. The invention also provides use of the matrix scaffolds as wound healing material and to investigate tissue structure and function in vitro.

A system is disclosed for cannulating the vena cava of a patient during cardiopulmonary bypass procedures. Such cannulation is necessary for drainage of venous blood from the patient so that it may be oxygenated and pumped back to the patient to perfuse tissues during cardiac surgery and, more specifically, during periods of ischemic cardiac arrest or dysfunction. The device of the present invention not only provides venous drainage for cardiopulmonary bypass, but also performs the function of routing cardioplegic solution through the heart in the retrograde direction. Such cardioplegia provides protection to the heart during periods of ischemic cardiac arrest. This invention replaces a plurality of cannulae currently used for open-heart surgery, thus simplifying the surgical field and improving visibility of the heart. The device allows for the delivery of retrograde cardioplegia to the coronary circulation of both the right and the left side of the heart. The device further includes protection mechanisms to prevent overinflation or excessive pressurization of the right atrium during retrograde delivery of cardioplegia solution.

The improved positioning device, for use in hip, pelvis or bariatric surgery, securely and safely supports a morbidly obese patient lying in the lateral decubitus position at one side of an operating table so the surgeon may stand close to the anterior side of the patient. The support device includes a double-ended bracket having a pair of oppositely positioned padded end portions secured to an angular bracket post adapted to securely mount to an operating table via a question mark-shaped bracket. The angular bracket arm vertically adjusts to support the patient on one side, with the padded end portions applied to bony prominences such as the symphysis pubis and the lower side anterior superior iliac spine. The support device is used in combination with a posterior pelvic support plate, and a pair of anterior-posterior chest support plates to retain the patient in a secure and stable manner during surgery.

Digital mobile communications devices and methods for processing fingerprint signal for authenticating a user of a mobile device. Processing a touch screen generated signal into a processed touch screen control signal for controlling mobile devices. Processing in a mobile device a motion detector generated signal into a motion detector generated control signal, for navigation control of mobile device. Modulation and demodulation, transmission and reception of spread spectrum signals, Orthogonal Frequency Division Multiplexed (OFDM) signals and conversion of spread spectrum signals into OFDM signals. Received spread spectrum signals from 3G cellular systems are converted into OFDM signals and transmitted in a wireless network, e.g. a Wi-Fi network. Received OFDM signals, received in a first RF frequency band, are demodulated and in a repeater mode are re-transmitted in a cellular system or network in a second OFDM radio frequency band. One or more receivers and demodulators for receiving demodulating and processing received signals into location finder information. A video camera in mobile device generates video signal and transmits video signal with location finder information signal.

The invention relates to medical apparatus and instruments, and in particular relates to a prepuce cutting and stitching instrument. The prepuce cutting and stitching instrument comprises a nail cartridge sleeve, a pair of handles, a sliding cavity main body, a nail pushing barrel, a protection cover, a glans penis cover, an adjusting knob, a pair of equilibrium shifting blocks, a pair of sliding wing plates, a scalpel gasket, a nail cartridge, an annular scalpel, a nail pushing base and a nail separating ring, wherein the nail separating ring attaches to the end surface, departing from the nail pushing barrel of the nail cartridge, an annular table is arranged outside the glans penis cover, the scalpel gasket is mounted on the end surface, close to the nail cartridge sleeve, of the annular table, and is matched with the bit of the annular scalpel for use, and the nail pushing base is mounted on the end surface, close to the nail cartridge sleeve, of the annular table, and is matched with the nail cartridge and pushing teeth for use. The prepuce cutting and stitching instrument is simple in structure and convenient to use, the operation is rapid and convenient, and short in time, and the problems that the wound after the operation expands easily, and the suturing nail easily grows into the intracutaneous part, and is difficulty separated, are solved.

The invention discloses an automatic tracking system for an operative region of a laparothoracoscope. The automatic tracking system comprises a controller, an operative instrument, an image collecting module, an image caching module, an operative region identifying module and an image display module, wherein the controller is used for monitoring a minimally invasive surgery process in enterocoelia and thoracic cavity; the operative instrument is arranged in an instrument channel of the laparothoracoscope, is connected with the controller and is used for performing the minimally invasive surgery in the enterocoelia and thoracic cavity; the image collecting module is arranged in a shooting channel of the laparothoracoscope, is connected with the controller and is used for shooting the images of the organs and the minimally invasive surgery process in the enterocoelia and thoracic cavity; the image caching module is connected with the controller and is used for storing the images in the enterocoelia and thoracic cavity; the operative region identifying module is connected with the controller and the image caching module and is used for identifying the image of the operative instrument in the shot images; the image display module comprises a whole image display module and an operative region image display module and is used for displaying the image of the minimally invasive surgery process. The automatic tracking system for the operative region of the laparothoracoscope can automatically track the local image of the operative region in real time while realizing the panorama image display and also can freely amplify the local image.

The invention relates to a navigation system and method for 3D virtual ultrasonic guidance puncture, to meet clinical puncture requirements in a minimally invasive interventional operation. The navigation system comprises a three-dimensional visual display device, an ultrasonic imaging device, an ultrasonic probe, an image collecting card, an image working station, a spatial location device, a puncture needle and designed and developed supporting software, and functions such as three-dimensional scene rendering and display, hardware device calibration and operation path planning are achieved. According to the navigation method for puncture of the navigation system, by correcting tumor position changes caused by breathing movement and patients' movement in the operation process, puncture precision of the navigation system is improved. A virtual reality technology is applied to ultrasonic operation navigation, three dimension and flexibility of display are enhanced, and a doctor is helped to finish an operation better and more quickly.

The invention discloses a neurosurgery clinical nursing head fixing device. The device comprises a chassis, a gearbox is arranged in the chassis, an adjusting threaded rod is arranged on the upper endof the gearbox, a threaded sleeve is arranged on the upper end of the adjusting threaded rod, the upper end of the threaded sleeve is connected with a hinged frame, the hinged frame is connected to the lower end surface of a pillow seat, limit sliding grooves are formed in the left and right sides of the inside of the pillow seat, the limit sliding grooves are provided with a rotating threaded rod and a threaded sliding block, the upper end of the threaded sliding block is provided with a connecting block, the upper end of the connecting block is provided with a fixing plate, the fixing plateis a curved plate, and the inner side surface of the fixing plate is provided with a sponge pad. The device is stable in structure, stable in operation, convenient to adjust, convenient to use and quick in loading and unloading, is capable of achieving a head fixing function for clinical nursing of neurosurgery, can be applied to the head fixing of different patients, has wide applicability, canachieve the lifting adjustment function, can achieve the rotation function, provides convenience for the operation of a surgery and the nursing function, and satisfies the current use requirements.

The invention discloses a prone-operative-position mattress. The prone-operative-position mattress comprises a prone-position mattress body, a head cushion, a trunk cushion and lower-limb cushions. The head cushion is arranged on the prone-position mattress body, the prone-position mattress body and the lower-limb cushions are connected with the trunk cushion, lower-limb grooves are formed at joints of the trunk cushion and the lower-limb cushions respectively, and the whole prone-operative-position mattress is of a vertical centrosymmetric structure. By the prone-operative-position mattress, patients can keep their operative positions unchanged for a long time during operations, and standard arrangement of the operative positions of the patients during prone-position operations is realized; the standard arrangement is reasonably designed on the condition that features of the prone-position operations, genders, heights and weights of the patients and different pressure bearing capabilities of limbs are fully taken into consideration, so that the limbs of the patients are reasonably supported to disperse the pressure borne by the trunks and the limbs of the patients so as to protect the patients; workload and working difficulty of medical workers are lowered; operation time of the patients is indirectly shortened, complications during and after the operations are reduced, hospital stays are shortened, and hospitalization costs are reduced.

The invention relates to the field of medical image processing and provides a liver segmentation method and a system thereof. The method comprises the following steps of: segmenting medical image sequences of a liver to obtain segmentation images of the liver and a portal vein; obtaining a center line and a radius of the portal vein; making different marks on different segments of the liver in the center line of the portal vein; segmenting the liver based on marked center line of the portal vein. Therefore, the invention provides the method and the system for individualized liver segmentation and provides good security for clinical surgery.