23 results about "Image-guided surgery" patented technology

A tracker system for use in image guided surgery is disclosed. The tracker system may couple to wet tissue and may include a navigation tracker and a base pad that couple to each other. The base pad may be fabricated from a plurality of nonwoven nanofibers. The base pad is configured to couple to body tissue of a patient via at least one of adsorption, hydration equilibrium, and macromolecular interpenetration.

An imaging system, including a head-mounted display worn by a system operator. A marker defines a plane when attached to a human subject. Optically reflective elements are disposed on the marker and on opposing sides of the plane in a non-symmetrical arrangement with respect to the plane. A memory stores a graphical representation of a tool used in a procedure performed on the human subject, and an image of anatomy of the human subject. A camera attached to the display acquires an image of the marker and the tool. A processor analyzes the image to identify the plane and to identify a side of the plane wherein the camera is located, and to render to the display the image of the anatomy of the human subject with the graphical representation of the tool superimposed thereon from a point of view in the identified side of the plane.

Methods and systems for performing computer-assisted surgery, including robot-assisted image-guided surgery. Embodiments include marker devices for an image guided surgery system, marker systems and arrays for tracking a robotic arm using a motion tracking system, and image guided surgery methods and systems using optical sensors.

In certain embodiments, an ophthalmic system and computer-implemented method for automatically initializing an image guided surgery are described. The initialization includes monitoring a scene using multiple images captured by a first imaging device. An eye of a user is detected within a first image of the multiple images. In response to detecting the eye of the user, a registration procedure is initiated with the first image and a reference image of the eye of the user to generate a set of transformation information. A set of overlay content is generated based on the set of transformation information. The set of overlay content includes a transformed first image or a transformed reference image. Overlay content is presented onto the scene via a second imaging device.

A system for performing image-guided surgery includes an instrument having a first portion configured to define a trajectory into the body of a patient, a marker device and a user-interface component. A sensing device receives electromagnetic signals that are reflected or emitted from the marker device, and a processing system, coupled to the sensing device, includes at least one processor configured with processor-executable instructions to perform operations that include tracking the position and orientation of the instrument relative to the patient based on the signals received at the sensing device, receiving a signal from the user-interface component of the instrument indicating a user-input event, and saving the trajectory into the body of the patient defined by the first portion of the instrument in response to receiving the signal.

The present disclosure provides a guide wire system comprising (a) a guide wire having a distal end and a proximal end, wherein the guide wire comprises a superelastic material, (b) a first connector coupled to the proximal end of the guide wire, (c) a second connector coupled to the guide wire between the distal end and the proximal end, (d) an electromagnetic sensor coupled to the distal end of the guide wire, and (e) a polymeric tube surrounding the guide wire and at least a portion of the electromagnetic sensor.

A visualization system may be implemented with an image guided surgery navigation system for use during ENT procedures. Correlated datasets such as surgical paths and pre-operative image slices may be correlated with the coordinate system of the navigation system for reference during a procedure. A surgeon may wear a head mounted display (“HMD”) having a transparent screen through which the patient anatomy may be viewed. The orientation and distance of the head mounted display relative to the patient anatomy may be determined using magnetic position tracking, image analysis of images captured by a camera of the HMD, or both. Correlated datasets may then be transformed based on the relative distance and orientation and may be displayed via the transparent screen to overlay directly viewed patient anatomy. Some implementations may include optical fiducials integrated with a patient tracking assembly to aid in tracking the patient and determining perspective of the HMD.

To provide agents for labeling and locating renal nerve.SOLUTION: A provided agent comprises human neuron or nerve-targeting molecule to be used by a method comprising: (a) contacting the renal nerve in the renal arterial wall with an agent, thereby labeling the renal nerve in the renal artery wall; and (b) illuminating the cargo through the renal artery wall in the kidney; receiving fluorescent light from the cargo; and using the received fluorescent light to determine the position of renal nerve in the renal artery wall during operation of a subject; and (c) using the position of the renal nerve in the renal artery wall for irradiating or guiding ablation of the renal nerve in the renal artery wall.SELECTED DRAWING: Figure 1

The present invention provides methods for guiding preservation of human neurons or human nerves during surgery, as well as labeling and mapping nerves in targeted organs for map-guided surgery, by administering a fluorescently-labeled peptide that specifically binds to the human neurons or human nerves. The invention further provides human neuron or nerve targeting molecules comprising fluorescently-labeled peptides that specifically bind to human neurons or human nerves and compositions thereof.

Tools used within a surgical area may be equipped with sensors that allow them to be tracked within the magnetic field of an image guided surgery (IGS) system. These tools may include a probe which is instrumented with a position sensor allowing it to be used not only for registration of non-magnetic objects within the magnetic field, but also for providing additional inputs.

A guide sheath includes ports at a handle portion through which flexible endoscopic tools may be advanced until they emerge from corresponding ports at a distal tip of the guide sheath. The guide sheath includes a position sensor at its distal tip that is compatible with an image guided surgery (IGS) system, such that a virtual view of the distal tip's position relative to a surgical site may be presented by the IGS system. The virtual view may assist a surgeon in precisely positioning the distal tip at the surgical site, and then one or more flexible endoscopic tools may be advanced the length of the guide sheath for use at the surgical site. The guide sheath may also include an articulating portion at the distal tip that may be deflected in one or more directions in order to provide additional control over placement within the surgical site.

Technology described herein can be embodied in a method of displaying a visual representation of a portion of a surgical scene. The method includes receiving data representing information captured using a first sensor of a camera associated with a surgical device, the information being indicative of a first quantity representing an amount of fluorescence emitted from the portion of the surgical scene. The method also includes obtaining information indicative of a second quantity representing an amount of excitation signal causing the fluorescence to be emitted from the portion of the surgical scene, and generating a normalized fluorescence signal as a function of the first quantity and the second quantity. The method further includes generating the visual representation of the portion of the surgical scene based on the normalized fluorescence signal, and presenting the visual representation on a display device associated with the surgical device.

A method includes collecting, from an optical fiber shape sensor extending within an instrument coupled to a teleoperational system, spatial information as a reference point of a proximal portion of the instrument is positioned at a plurality of locations along an insertion path and receiving, from a position sensor for a drive system of the teleoperational system, position information when the reference point is at each of the plurality of locations along the insertion path. The method further includes, based on the position information from the position sensor and the spatial information from the optical fiber shape sensor, determining relative position data for the reference point and, based on the relative position data, determining an orientation of an insertion stage defining the insertion path along which the proximal portion of the instrument moves.

The present application relates to the technical field of medical devices, and discloses an ultrasonic fusion multi-modal image guided surgery navigation system of a microsurgical robot. The system comprises system initialization, multi-modal image acquisition, real-time data monitoring, image fusion analysis, navigation stability evaluation and adaptive navigation adjustment modules. The system initialization module receives planning parameters and configures a navigation reference; the multi-modal image acquisition module synchronously controls ultrasonic and complementary image equipment to acquire data, and outputs a calibrated image set after alignment verification; the real-time data monitoring module tracks the trajectory and attitude of the instrument, and generates dynamic data. The image fusion analysis module completes image space transformation and superposition, and evaluates fusion consistency; the navigation stability evaluation module calculates deviation tolerance; and the adaptive navigation adjustment module optimizes the navigation path accordingly. The system integrates multi-source images and instrument dynamic information, improves navigation accuracy and stability, and is suitable for fine microsurgical operations.

To provide: improved guide wire systems for use in placement of nasal treatment devices; methods of manufacture thereof; and methods of use thereof.SOLUTION: A guide wire system comprises: a guide wire 102 having a distal end 104 and a proximal end 106, where the guide wire comprises a superelastic material; a first connector 108 coupled to the proximal end of the guide wire; a second connector 110 coupled to the guide wire between the distal end and the proximal end; an electromagnetic sensor 112 coupled to the distal end of the guide wire; and a polymeric tube 114 surrounding at least a portion of the guide wire and at least a portion of the electromagnetic sensor.SELECTED DRAWING: Figure 2

A computer-assisted medical system comprises a fluoroscopic imager having a full scan range in a surgical coordinate space. The system further comprises one or more processors configured to perform a method. The method includes receiving a first fluoroscopic image data set of a patient anatomy. The first fluoroscopic image data set is obtained from the full scan range of the fluoroscopic imager. The method further includes receiving at least one additional fluoroscopic image data set of the patient anatomy from the fluoroscopic imager operating in a constrained range substantially smaller than the full scan range. The method further includes constructing a first planar tomographic image from the first and at least one additional fluoroscopic image data sets.

The present disclosure provides a guide wire system comprising (a) a guide wire having a distal end and a proximal end, wherein the guide wire comprises a superelastic material, (b) a first connector coupled to the proximal end of the guide wire, (c) a second connector coupled to the guide wire between the distal end and the proximal end, (d) an electromagnetic sensor coupled to the distal end of the guide wire, and (e) a polymeric tube surrounding the guide wire and at least a portion of the electromagnetic sensor.

The application discloses a nuclear magnetic image guided surgery positioning device based on a radio frequency coil and a positioning method, the device comprising a solid block, a plurality of recesses are arranged on three adjacent surfaces of the solid block respectively; a glass tube filled with contrast agent is arranged in each recess, and a radio frequency coil is wound on the glass tube. The positioning method comprises the following steps: acquiring a nuclear magnetic image of the device; solving an image coordinate of a contrast agent mark mass center point; establishing a device coordinate system, solving a coordinate of the mass center point in the device coordinate system according to the arrangement of the glass tube, and obtaining a translation matrix R and a translation matrix t of the device coordinate system relative to the image coordinate system; since a surgery instrument is rigidly connected with the device, a space conversion matrix of a surgery instrument coordinate system and the image coordinate system is obtained according to the R and the t; since a coordinate of a tip point of the instrument in the instrument coordinate system is known, the real position of the tip point of the instrument in the nuclear magnetic image coordinate system is calculated based on the space conversion matrix. The application has the advantages of accurate positioning, high robustness and the like.

A transfer module, such as a single board computer having wireless communication capabilities, may be attached to an image guided surgery (“IGS”) navigation system. Images, video, and data stored on the IGS navigation system may be moved to and stored on the transfer module in an encrypted format. The transfer module may connect to a secure network or other secure wireless communication and transfer encrypted IGS medical procedure data to a physician device, a hospital system device, or other device. After validation, the physician device or other device may decrypt and display the data. The transfer module may be useful for IGS navigation systems having no preexisting wireless capabilities; and for those having wireless capabilities that are less secure than those provided by the modified IGS navigation system. The transfer module may also wirelessly transmit IGS medical procedure data to a cloud storage system for subsequent access by end users.

The invention discloses a liver / mitochondria dual-targeting carboxylesterase fluorescent probe as well as a preparation method and application thereof, and belongs to the technical field of medicines. The probe is a compound LDM-CA, has the liver and mitochondria dual-targeting characteristic, and shows high selectivity, sensitivity and strong binding affinity to CEs. In-vitro cell experiments show that the LDM-CA has excellent mitochondrial targeting ability in the HCC cells and specific fluorescence opening response to CEs in the cells, and can clearly distinguish the HCC cells from normal liver cells or non-liver cancer cells. In-vivo imaging of a mouse model shows that no matter in-tumor injection or intravenous injection, the LDM-CA can effectively visualize the HCC tumor and draw the edge of the tumor, has the prospect of serving as a powerful molecular tool for early HCC diagnosis and image-guided surgery, and also provides a valuable means for studying the action of mitochondrial CEs activity in HCC pathogenesis at the subcellular level.

Tools used within a surgical area may be equipped with sensors that allow them to be tracked within the magnetic field of an image guided surgery (IGS) system. The IGS system may be configured to detect various movement patterns of the tools, which may be mapped to and associated with corresponding actions or inputs to the IGS system. In one example, a registration probe may be moved along the x-axis and y-axis, with detected movements identified and received by the IGS system as movements of a mouse cursor on a display of the IGS system. In another example, the registration probe may be moved in a circular pattern, or quickly moved along any of the x-axis, y-axis, or z-axis, with each being configured to cause the IGS system to zoom a display, change a view, record video, or other actions.

A method performed by a computing system comprises receiving shape information for an elongate flexible portion of a medical instrument. The medical instrument includes a reference portion movably coupled to a fixture having a known pose in a surgical reference frame. The fixture includes a constraint structure having a known constraint structure location in the surgical reference frame. The elongate flexible portion is coupled to the reference portion and is sized to pass through the constraint structure. The method further includes receiving reference portion position information in the surgical reference frame; determining an estimated constraint structure location in the surgical reference frame from the reference portion position information and the shape information; determining a correction factor by comparing the estimated constraint structure location to the known constraint structure location; and modifying the shape information based upon the correction factor.

The invention relates to the technical field of medical instruments, and discloses an ultrasonic fusion multi-modal image guided surgical navigation system of a microsurgical robot. The system comprises a system initialization module, a multi-modal image acquisition module, a real-time data monitoring module, an image fusion analysis module, a navigation stability evaluation module and a self-adaptive navigation adjustment module. The system initialization module receives planning parameters and configures a navigation reference; the multi-modal image acquisition module synchronously controls the ultrasonic and complementary image equipment to acquire data, and outputs a calibration image set after alignment verification; and the real-time data monitoring module tracks the trajectory and posture of the instrument and generates dynamic data. The image fusion analysis module completes image space transformation and superposition and evaluates fusion consistency; the navigation stability evaluation module calculates deviation tolerance; and the self-adaptive navigation adjustment module optimizes the navigation path according to the data. The system integrates multi-source images and instrument dynamic information, improves navigation accuracy and stability, and is suitable for microsurgery fine operation.