152 results about "Ultrasound guidance" patented technology

A compact ultrasound needle guidance system and method of use is described. The needle guidance system has components to adjustably target a needle's destination in the plane of a two-dimensional ultrasound image before insertion of a needle into a patient. Needle movement is tracked using a position detector that provides a visual display of the needle path on the ultrasonic image.

Method and medical devices for generating and stabilizing micro- or nano-bubbles, and systems and methods for therapeutic applications using the bubbles, are provided. The micro-bubbles may be used to enhance therapeutic benefits such as ultrasound-guided precision drug delivery and real-time verification, acoustic activation of large tumour masses, enhanced acoustic activation through longer retention of therapeutic agents at the point of interest, enhancement of high intensity focused ultrasound treatments, light activation of photodynamic drugs at a depth within a patient using extracorporeal light sources, probes, or sonoluminescence, and initiation of time reversal acoustics focused ultrasound to permit highly localized treatment.

An imaging probe for a biological sample includes an OCT probe and an ultrasound probe combined with the OCT probe in an integral probe package capable of providing by a single scanning operation images from the OCT probe and ultrasound probe to simultaneously provide integrated optical coherence tomography (OCT) and ultrasound imaging of the same biological sample. A method to provide high resolution imaging of biomedical tissue includes the steps of finding an area of interest using the guidance of ultrasound imaging, and obtaining an OCT image and once the area of interest is identified where the combination of the two imaging modalities yields high resolution OCT and deep penetration depth ultrasound imaging.

Disclosed herein is an apparatus for biological imaging comprising a probe comprising an emitter and a detector; a source circuit connected in operational communication to the emitter; a detector circuit connected in operational communication to the detector; a central processing unit connected to the source circuit and the detector circuit; a display operably connected to the central processing unit; and wherein the apparatus is capable of photoacoustic tomography and diffusive optical tomography and / or ultrasound tomography.

A medical instrument usable with an ultrasound-endoscope for performing a needle biopsy on a patient's internal body tissues usable at a surgical site not visible to the unaided eye or viewed endoscopically, comprises an elongate tubular member with a hollow needle element connected at its distal end, a sheath member housing said tubular member and needle element, an actuator subassembly with a shifter member operatively connected to elongate tubular member's proximal end, and a distal camming subassembly, said subassembly enabling a rotating motion of said needle member while handle actuator is moved in the forward direction. Upon inserting an ultrasound-endoscope into a patient and locating a mass, the fine needle with sharply pointed spoon shaped distal end is inserted into the mass aided by endoscopic and ultrasonographic guidance. Once in the mass, a camming action is initiated, causing rotation of the fine needle within the mass, resulting in a scooped out core biopsy. This instrument enables the performance of a fine needle aspiration requiring only one or two needle introductions, with a resultant core biopsy substantial enough for diagnostic purposes.

A bone distraction device applies guided incremental forces to opposing bone segments for the purpose of generating native bone in an osteotomy site (distraction osteogenesis). The bone distraction device automatically adjusts the rate of the distraction utilizing feedback received from the ultrasound transducer and other sensors, using an adaptive decision algorithm(s). A wireless transmitter allows for remote guidance, feedback and monitoring.

A method and system are disclosed for radiosurgical treatment of moving tissues of the heart, including acquiring at least one volume of the tissue and acquiring at least one ultrasound data set, image or volume of the tissue using an ultrasound transducer disposed at a position. A similarity measure is computed between the ultrasound image or volume and the acquired volume or a simulated ultrasound data set, image or volume. A robot is configured in response to the similarity measure and the position of the transducer, and a radiation beam is fired from the configured robot.

Ultrasound-based systems are described for use in guiding subdermal probes during medical procedures. The systems include an ultrasound system in conjunction with a probe detection system. The probe detection system can be used to generate a virtual image of a probe in a subdermal environment such that the virtual image is highly correlated with the actual probe location in the subdermal environment. The probe used in the system can include a tag that can provide information concerning the probe characteristics to the probe detection system.

A vascular access device ultrasound guidance system which provides a novel ultrasound imaging head interface for vessel access. The system comprises a fitted basket / VAD guide for attachment to a hand held ultrasound transducer. The VAD guide, being integrally molded to the fitted basket, comprises a releasible guide assembly for a VAD needle guide. In addition, the needle guide assembly comprises means for anchoring the VAD to a patient's skin following successful insertion. A magnetic needle guide system is disclosed. A fluid sampling device which integrates needle guidance and, safety needle capture in a single guide head is also disclosed.

A system and method for ultrasonically guided endoscopic (EUS) delivery of one or more embolization coils to an internal body site. The embolization coil delivery devices are preferably ultrasonically guided to the selected internal body site after being advanced through the working channel of an endoscope with its distal end located near the selected internal body site. In one aspect, the system and method may be utilized to deploy an embolization coil into a lesion to promote thrombosis and / or prevent bleeding.

A low profile occlusion device for percutaneous or direct transcutaneous placement into a vein or other tubular vessel of the body. Two wires form one or more loops having a thin cover disposed between them. The loop forms a beveled angle within the blood vessel and the cover prevents blood flow through the vessel. An additional loop can be present to prevent device embolization or device migration. The occlusion device is delivered to a vein such as an incompetent perforator vein or other incompetent vein through a small flexible sheath. Ultrasound guidance is used to position the occlusion device which can be repositioned within the vessel if necessary.

A method and apparatus of ultrasound guidance for interventional procedures involving a needle includes acquiring ultrasound data from a region of interest, positioning the needle with respect to the region of interest, displaying an image based on the ultrasound data, calculating a risk of bending for the needle, and presenting the risk of bending for the needle.

Provided herein is a pre-Caesarean method for collecting amniotic fluid from a patient. A needle is inserted into the incision site for the future C-section, which may be under ultrasound guidance, through which the amniotic fluid is drawn under a low level suction and, optionally, gravity to a sterile collection container. The method encompasses filtering and / or irradiating the amniotic fluid to collect biomolecules of interest such as growth factors and / or stem cells. Also provided is the sterile amniotic fluid or filtrates thereof collected by the method described herein

A method and apparatus for performing minimally-invasive image-guided laser ablation of targeted region within a tissue or organ comprising the following: A guidance tool that can guide laser source to a predefined target region from a planning image; A controller that can control energy from laser source, duration of its application and dosage of energy from laser source; and a computer with software that can compute thermometry based on precise location and duration of application or dosage of the laser source. The computer receives signal from controller and can control or shut-off laser energy.

The invention discloses a handheld ultrasonic guidance nerve block robot, which comprises a clamping mechanism used for clamping an ultrasonic probe, a straight line position regulation mechanism, anarc line posture adjustment mechanism, a radial movement puncture end and a puncture control system, wherein the clamping mechanism, the straight line position regulation mechanism, the arc line posture adjustment mechanism, the radial movement puncture end and the puncture control system are connected in sequence; and the puncture control system is independently connected with the clamping mechanism, the straight line position regulation mechanism, the arc line posture adjustment mechanism and the puncture end to output a control instruction. The handheld ultrasonic image guidance nerve blockrobot with a light structure is used for assisting a doctor in finishing high-accuracy nerve block.

The present invention provides fixation devices, locking assemblies, and methods for using the same. The fixation devices of the invention are capable of accurate insertion of medical devices by providing detection means of a patient's internal anatomy and localizing a desired target. The devices are capable of locking into position to maintain accuracy.

The invention relates to a microwave-type tumor ablating needle with a temperature control function, and belongs to the technical field of medical apparatuses. The microwave-type tumor ablating needle with the temperature control function comprises an electrode head, a conical needle head and a needle rod, wherein the electrode head is arranged inside the conical needle head; thermal resistor temperature sensors are arranged at intervals on the outer wall of the needle rod; a first stainless steel tube is arranged inside the needle rod; a coaxial cable is arranged inside the first stainless steel tube; the front end of the coaxial cable is connected with the electrode head; a choke ring is arranged on the external diameter of the coaxial cable; the back end of the coaxial cable is connected with a radio frequency connector; a water inlet cavity is formed in the first stainless steel tube; a water outlet cavity is formed in a second stainless steel tube. Under ultrasound guidance, the microwave-type tumor ablating needle provided by the invention directly punctures into a gland tumor area percutaneously and can complete ablation, temperature measurement and positioning at a time, so that real minimal invasion is achieved, damage to a surrounding normal tissue is reduced, pains of a patient are relieved, and the rehabilitating cycle is shortened.

A method of inspecting a component, the component comprising a hole with an entrance. The method comprises: directing ultrasound into the component via a liquid coupling medium; receiving ultrasound from the component via the liquid coupling medium; and processing the received ultrasound to determine a property of the component. The entrance of the hole is sealed with tape to prevent the liquid coupling medium from flowing into the entrance of the hole.The tape has an acoustic impedance within 40% of the acoustic impedance of the liquid coupling medium. By selecting a tape with an acoustic impedance relatively close to that of the liquid coupling medium (which in most cases will be water) the tape is relatively transparent to ultrasound and thus enables at least the presence or absence of a defect in a wall of the hole to be determined.

A method for minimally invasive laser ablation of a target tissue within a patient while sparing tissue within a safety zone proximate to the target tissue, comprising: guiding a laser fiber within a patient with a guidance tool; measuring a temperature within the target tissue and the safety zone based on an invasive and a non-invasive thermal sensor; computing a thermal profile in conjunction with a real-time tissue image adapted for guidance of the laser fiber with the guidance tool within the patient; and controlling a laser to deliver energy through the laser fiber, to deliver a minimally therapeutic ablation therapy to the target tissue while ensuring that the safety zone is maintained in a non-ablation condition, based on at least a treatment plan, the measured temperature, and the thermal profile.

An ultrasonic probe comprising a housing, a first ultrasonic transducer array, a second ultrasonic transducer array, a first light source, and a second light source. The first ultrasonic transducer array is coupled to the housing and configured to emit a first planar ultrasonic beam in a first direction within a first plane. The second ultrasonic transducer array is coupled to the housing and configured to emit a second planar ultrasonic beam in the first direction within a second plane, which is substantially perpendicular to the first plane. The first light source is coupled to the housing and configured to project a first light line substantially within the first plane. The second light source is coupled to the housing and configured to project a second light line within a third plane, which is substantially perpendicular to the first plane and intersects the second plane at an oblique angle. The first light line intersects and is substantially perpendicular to the second light line.

The invention discloses a multi-degree-of-freedom radioactive particle implantation robot based on ultrasonic guidance. The multi-degree-of-freedom radioactive particle implantation robot comprises afoundation bed, an XYZ three-axis movement platform, a two-degree-of-freedom rotation joint and a puncture device, wherein the XYZ three-axis movement platform is arranged on the foundation bed and comprises an X-axis movement arm; the two-degree-of-freedom rotation joint is installed on the X-axis movement arm and has a rotation degree of freedom in two directions; the puncture device comprises an installation seat, a puncture needle, a radioactive particle supply mechanism, a pushing mechanism and an ultrasonic probe, wherein the installation seat is arranged on the two-degree-of-freedom rotation joint; the puncture needle is arranged on the installation seat in a sliding way; the radioactive particle supply mechanism is arranged on the installation seat and comprises a cartridge holderused for storing radioactive particles and a pushing rod used for pushing the radioactive particles in the cartridge holder into the puncture needle; the pushing mechanism is arranged on the installation seat and is used for pushing the puncture needle to carry out straight-line needle insertion to a focus zone to implant the radioactive particles; and the ultrasonic probe is arranged on the installation seat and is used for obtaining the image of a focus. The whole robot has an artful structure, is cooperated with the ultrasonic probe to capture and feed back the image of the focus zone in real time, and can automatically, safely and accurately finish radioactive particle implantation surgery.

The invention discloses an ultrasonic guided out-of-plane puncture method. The method comprises the steps: (1) a user directly measures a longitudinal distance y between a target point to be puncturedand skin through an ultrasonic probe and a Doppler ultrasonic diagnosis apparatus; (2) the user measures a transverse distance x between an ultrasonic guided out-of-plane puncture frame and the center of the ultrasonic probe directly through a staff gauge; (3) the user directly calls a background dedicated computing module of the Doppler ultrasonic diagnosis apparatus, the longitudinal distance yand the transverse distance x are input, and a puncture distance L and a puncture angle alpha are obtained through computing; and (4) the Doppler ultrasonic diagnosis apparatus generates a puncture guiding path according to the computed puncture distance L and the puncture angle alpha, and a puncture needle performs accurate puncture according to the puncture guiding path. The method has the beneficial effects that operating personnel can intuitively observe a prospective puncture path and target point of the puncture needle, so that the operating personnel can perform accurate puncture according to a specific position of a nidus, the occurrence of a problem of mistaken puncture is avoided, and the working efficiency is increased; and misplay of the operating personnel is avoided, and theaccuracy of information extraction and puncture path planning of the puncture needle is improved.

The invention discloses an operation path adjusting device under ultrasonic guidance. The operation path adjusting device is characterized in that data collected by an ultrasonic mobile terminal of a displacement sensor and an angle sensor is utilized, an ultrasonic image processing and displaying terminal can calculate the relative position relation of a sleeve axis and an ultrasonic image in the plane, and the relation is displayed in real time in the ultrasonic image. According to the operation path adjusting device under the ultrasonic guidance, the ultrasonic image is relied on to achieve the guidance of the operation path of a puncture instrument, and the flexibility, safety and accuracy of an ultrasonic operation technique are improved.

The invention discloses a puncture device based on ultrasonic guidance. The puncture device comprises a puncture needle module, a puncture area sensor and a processor. The puncture area sensor is connected with the processor; the puncture needle module comprises an optical fiber vibration sensor capable of measuring vibration. Accurate position data of response of human tissue to the puncture needle in the puncture process is obtained, and the success rate of catheterization under ultrasonic guidance is increased.

An instrument monitoring apparatus includes a guide and sensing component configured to be attached to an ultrasound probe. The guide and sensing component includes a source of illumination configured to project a light beam into a light plane; and a light receiver aligned with the light plane and configured to quantify an amount of light reflected from an object in the light plane to the light receiver by receiving the amount of reflected light and converting it to an electrical signal. A control component includes a processor configured to receive the electrical signal from the light receiver, and based on a magnitude of the amount of light represented by the electrical signal, determine whether the object is sufficiently within the light plane. The processor instructs output of a first signal when it is determined that the object is sufficiently within the light plane. The processor instructs output of a second signal that is distinct from the first signal, when it is determined that the object is not sufficiently within the light plane.

The invention discloses a puncture needle used under the ultrasound guidance. The puncture needle comprises a puncture needle body and a needle file, wherein the needle file is arranged at the tail end of the puncture needle body, and is communicated with the puncture needle body; a plurality of grooves are formed in the outer wall of the front end of the puncture needle body, and are distributed in an array manner along the length direction and peripheral direction of the puncture needle body. With the adoption of the manner, many reflection waves can be provided for a probe, and thus the puncture needle can be clearly developed and imaged.

The present invention relates to an out-of-plane ultrasonic guiding device. The out-of-plane ultrasonic guiding device comprises a telescopic arm, a fixed end of the telescopic arm is provided with arotating sleeve, an axial center line of the rotating sleeve is superposed with a central axis of an ultrasonic probe, and a transverse axis of the telescopic arm is vertical to the central axis; an telescopic end of the telescopic arm is provided with a rotating mechanism, the rotating mechanism is provided with a telescopic positioning sleeve and a microcomputer, an ultrasonic machine measures avertical distance between an intersection point of the central axis and the skin and a puncture end point, the positioning sleeve measures a vertical length between a puncture starting point and thetransverse axis, the microcomputer calculates rotating angles of the rotating mechanism according to vertical distance, vertical length and horizontal distance data, and the rotating mechanism drivesthe axis of the positioning sleeve to rotate to coincide with a straight line determined by the puncture starting point and the puncture end point according to the rotating angles. Through the telescopic arm, rotating mechanism, telescopic positioning sleeve, and microcomputer the device can realize rotation of the positioning sleeve of a positioning puncture needle, and thus can accurately position the puncture angles of the puncture needle out of a plane.

The invention belongs to the technical field of object identification and discloses a multi-standard underwater two-way ultrasound guidance system for detecting and identifying an underwater object. The multi-standard underwater two-way ultrasound guidance system comprises an ultrasonic generator for producing underwater detecting signals and further comprises a characteristic frequency determining unit, a storage unit, a response frequency receiving unit and a signal processing unit, and the characteristic frequency determining unit, the storage unit, the response frequency receiving unit and the signal processing unit are respectively used for determining a characteristic frequency of a specific target, storing the characteristic frequency, receiving the response frequency of a detected underwater object to underwater detecting signals and determining whether the detected underwater object is the specific target according to comparison results of the characteristic frequency and the response frequency. In the multi-standard underwater two-way ultrasound guidance system, the characteristic frequency can reflect proprietary information of a certain target, and therefore, the accuracy and reliability of utilizing ultrasound to perform detection and recognition under the water can be improved through consistency comparison of the response frequency and the characteristic frequency; the sensitivity of frequency comparison is higher and limitation on identification accuracy caused by distance can be reduced.

The invention provides a novel ultrasonic guided puncture washing needle, and belongs to the technical field of medical instruments. The novel ultrasonic guided puncture washing needle comprises an inner core, a needle tube and an electric knife, wherein the inner core, the electric knife and the needle tube are detachably arranged. The washing needle has two use states, wherein one state is thatthe inner core is inserted into an inner cavity of the needle tube, and the other state is that one end, which is provided with a cutting knife, of the electric knife is inserted into the inner cavityof the needle tube,, wherein the cutting knife is used for crushing viscous hydrops or fiber tissues. The needle tube is in a double-cavity structure and comprises an inner cavity and an outer cavity; the outer cavity is wrapped outside the inner cavity; the outer cavity is used for feeding water and flushing liquid; and the inner cavity is used for sucking diluted hydrops. The novel ultrasonic guided puncture washing needle not only can fully smash the viscous hydrops or the fibrous tissues, but also can dilute the viscous hydrops while sucking the hydrops, so that a better treatment effectis achieved.