46 results about "Needle guidance" patented technology

The invention discloses a buccal needle positioning navigation method and system based on multi-mode perception driving, and the method comprises the steps: collecting the image information and depth information of the face of a patient; generating an individualized face three-dimensional model according to the image information and the depth information; determining a standard meridian map according to a meridian database, and registering the standard meridian map to the individualized face three-dimensional model through non-rigid deformation to obtain acupuncture point positioning; according to the acupuncture point positioning and a pre-stored organization hierarchy model, needle insertion path guiding information is calculated and generated, and in an interactive interface, the acupuncture point positioning and the needle insertion path guiding information are displayed in an overlapped mode so as to execute the needle insertion guiding process; and in the needle insertion guiding process, collision detection is carried out according to the needle insertion path guiding information and the organization level model, and safety early warning is carried out when a collision risk is detected. The precision and safety of the acupuncture treatment process can be effectively improved.

An endoscope add-on assembly adapted to be attached to a target endoscope. The endoscope add-on assembly includes an ultrasound imaging head, an ultrasound imaging sub-assembly, and a needle guide ramp. The ultrasound imaging head defines an imaging slice plane. The ultrasound imaging sub-assembly is configured to selectively engage the ultrasound imaging head. The ultrasound imaging sub-assembly includes a retaining element configured to secure the ultrasound imaging sub-assembly to the target endoscope. The needle guide ramp is configured to direct a motion of a needle of the target endoscope. The needle guide ramp is configured to align the needle of the target endoscope within the imaging slice plane when the endoscope add-on assembly is attached to the target endoscope.

An inserter can include a housing and a slider component. The slider component can be coupled to the housing and positioned along an outer surface of the housing. The slider component can be slidable along an elongated slot of the housing and include a guide tab disposed within a guide channel of the housing body. The slider can include a friction tab having a biasing member configured to press against the housing to urge the guide tab against a wall of the guide channel. Further, a deflector component can be provided that includes a needle guide configured to receive a needle of the inserter therein. The deflector component can be removably coupled to the inserter to allow the needle guide to bend the needle and hold the needle in a bent configuration.

One or more devices, systems, methods and storage mediums for performing medical procedure (e.g., needle guidance, ablation, biopsy, etc.) planning and / or performance, and / or for performing registration using at least one mask, are provided. Examples of applications for such devices, systems, methods and storage mediums include imaging, evaluating and diagnosing biological objects, such as, but not limited to, lesions and tumors, and such devices, systems, methods and storage mediums may be used for radiotherapy applications (e.g., to determine whether to place seed(s) for radiotherapy). The devices, systems, methods and storage mediums provide improved registration results by utilizing at least one mask to suppress one or more artifacts or objects (which may or may not include, but is not limited to, at least one medical instrument or tool) in an image including a portion of the medical guidance device and / or to enhance a region or target of interest in the image.

A trocar comprising a cannula and an obturator; wherein the cannula includes a head and a shaft, wherein the shaft extends from the head, and the head has a greater diameter than the shaft; the cannula defines a working channel which is open at both ends; the working channel defines a working channel axis; a pair of opposed needle guide elements are carried by an exterior portion of the cannula, wherein each needle guide element defines therethrough a needle guide channel, and wherein each needle guide channel defines a guide channel axis that is inclined with respect to the working channel axis; each needle guide channel axis is aligned with a needle inlet port defined by a first portion of the cannula shaft, and a needle outlet port which is defined by a second portion of the cannula shaft; and the second portion of the cannula shaft is located distally of the first portion of the cannula shaft.

A device and system for and methods of using an ultrasound probe housing containing ultrasound probes configured to produce images inside the body of a patient for procedures requiring needle or probe insertion. The ultrasound probe housing can be configured with a guide channel cut-out or aperture between the ambient side and body side of a patient. A needle guide assembly may be pivotally connected internal to the guide channel cut-out or aperture of the ultrasound probe housing at a pivot point such that during use the needle enters the patient through the needle guide assembly within the ultrasound probe housing so that the needle can be visualized by the ultrasonic probes in real time. The ultrasound probe housing may also provide an adhesion or suction quality to the body side of the device to facilitate aspects of the invention.

A needle guidance system includes a patient imaging system, such as an ultrasound guidance system (UGS) combined with a needle tip location system (TLS). The UGS defines a needle pathway to access an epidural / spinal space and overlays the pathway onto a live or frozen ultrasound image. The TLS magnetically determines a magnetic distal tip location of the needle including a depth with respect to a magnetic field sensor placed on the patient. A distal tip image overlayed atop the ultrasound image at a determined distal tip location. The UGS identifies the epidural / spinal space including a depth thereof within the ultrasound image. The UGS determines that the distal tip is located within the epidural / spinal space when the depth of the distal tip equals the depth of the epidural / spinal space. A probe securing apparatus secures an ultrasound probe of the UGS to the patient.

A biopsy guide for guiding biopsy needles towards a body organ includes a clasp for attaching to an ultrasound probe. The biopsy guide includes in addition a guide tower extending upwards away from the clasp that in turn includes a plurality of parallel guide channels placed one above the other and defining each a needle passage that extends through the guide tower between rear and forward open ends. Each guide channel at least along a rear section thereof opens laterally sideways along a slit that has a width sized to be generally similar to or larger than a width of the needle passage.

An exemplary system and method for a flexible XY-stage that spans a substantial portion of a subject torso to assist in guiding a needle template or needle insertion apparatus for needle-based intervention procedures in an MRI scanner. The flexible XY-stage is optimally configured to span the entire torso of the subject in providing both (i) a large bendable frame that can be positioned over the subject and (ii) a low height profile, to optimally fit within the bore of an MRI scanner. The needle template or needle insertion apparatus is movable within a large movable space defined by the flexible XY-stage and guided by cables connected at corners of the flexible XY-stage. The needle template or needle insertion apparatus has a plurality of mounting positions that allows a needle-based instrument to be mounted to the needle template or needle insertion apparatus and over a large degree of angle.

This invention provides a needle guide replacement unit and a liquid dispensing device including the same. The replacement unit includes a base and a limiting member; wherein, the base has a first base chamber and a second base chamber arranged sequentially from the inside to the outside; the limiting member is disposed in the second base chamber and has a hollow portion to allow the needle guide to pass through and be fixed in the first base chamber; the limiting member is also adapted to rotate to misalign the hollow portion with the needle guide to restrict the needle guide from passing through the hollow portion and leaving the first base chamber, and to rotate in the opposite direction to align the hollow portion with the needle guide so that the needle guide can pass through the hollow portion and leave the first base chamber. Using this invention, not only can the installation and removal of the needle guide be flexibly controlled, thus facilitating needle replacement, but the structure is also simple and easy to operate.

A needle guiding device for imaging-guided procedures features sensors to monitor the needle's attitude and a calibration tool fixed to the imaging machine for alignment. The device offers customizable feedback, including visual, audible, and haptic alerts, to maintain the planned insertion trajectory. The calibration tool, which may include reference surfaces that are perpendicular, non-perpendicular, or feature a groove, ensures accurate alignment. The device can log procedural data and is compatible with both single-use and reusable configurations. It is designed for use with one needle at a time, with options to use multiple devices for multiple needles or sequentially against different needles.

The application relates to a side PIN needle guiding and inserting mechanism, which comprises a rack, a jig, a needle inserting mechanism and a guiding mechanism; the needle inserting mechanism comprises a thimble and a needle driving mechanism, and is used for driving the thimble to realize a PIN needle inserting action through the needle driving mechanism; the guiding mechanism comprises a guiding mounting table, a guiding mounting rack, a guiding needle rack, a guiding needle and a guiding needle driving mechanism; the thimble, a jack of the workpiece and the guiding needle are in positive correspondence in the X-axis direction; the guiding mechanism acts prior to the needle inserting mechanism, the guiding mounting rack is driven by the guiding needle driving mechanism to move along the X-axis towards the workpiece, and a guiding needle inserting operation is performed; if the insertion is successful, a PIN needle inserting action is performed; if the insertion is not successful, the workpiece is judged as an NG product, the next workpiece is placed on the jig, and then the guiding needle inserting operation is performed. The application can adapt to the limited space of the side of the workpiece, has high precision and high efficiency, improves the precision and stability of product assembly, and meets diversified production requirements.

Medical devices_Integrated Oocyte Retrieval Probe with Internal Needle Guidance System

Disclosed herein is an ultrasound probe including a vibration transducer configured to vibrate skin or other tissue during a vascular access procedure. The vibration transducers of the first subset may cause ultrasonic vibration of a first patient interface surface of the probe to obtain an ultrasound image. The second subset of vibration transducers may cause a second patient interface surface of the probe to vibrate at a frequency different than the ultrasound frequency to mitigate pain associated with the vascular access procedure. The second patient interface surface may extend laterally away from the ultrasound probe toward the insertion site. The second patient interface surface may include a vascular access device.

The present disclosure relates generally to medical imaging and, more particularly to systems, methods, and devices for planning and carrying out minimally invasive procedures using external devices for needle guidance and the display and manipulation of the image set when planning and performing the procedure.

A needle guide configured to provide a placement guide of a needle of a medicament delivery device onto a medicament delivery site, the needle guide comprising: a body configured to be removably attached to the medicament delivery site; a needle hub configured to be operably connected to a needle of the medicament delivery device such that the needle of the medicament delivery device is attached to the medicament delivery site via the needle hub; an electronic unit attached to the main body of the needle guide; wherein the electronic unit comprises an indicator configured to provide at least one of visual, audible and tactile indications to a user of the medicament delivery device.

A method for automatically determining a position of a needle tip of a biopsy needle, which is fitted in a needle holder, configured to move on its longitudinal axis for a biopsy by a biopsy unit, and configured to be guided via a needle guide, comprises: positioning the biopsy needle in the needle holder; determining at least the position of the needle tip of the biopsy needle via a sensor; and automatically calculating a distance from the needle tip to a reference point.

The present application can easily perform installation of a puncture needle guide adapter to an ultrasonic probe outside the abdominal cavity, and can easily confirm the installation state of the puncture needle guide adapter inside the abdominal cavity. Alternatively, insertion and extraction of the ultrasonic probe from a guide tube that passes through the abdominal wall can be smoothly performed. A puncture adapter (400) is detachably installed to a head (210) of a probe (200) outside the abdominal cavity. The puncture adapter (400) has a main body portion that covers a through hole for guiding a puncture needle, an insertion portion that is inserted into the through hole, and a needle guide hole that communicates with the main body portion and the insertion portion and guides the puncture needle inserted from a needle inlet portion of the main body portion to a needle inlet portion of the insertion portion.

Hand-free ultrasound probes, assemblies, systems, and methods are disclosed herein. For example, an ultrasound probe assembly can include an ultrasound probe and a disposable pad coupled to a patient-facing side of the ultrasound probe. The ultrasound probe can include a probe body, a stabilizer extending from the probe body, a probe head including ultrasound transducers in an array located in a patient-facing portion of the probe body, and a needle guide holder extending from the probe body. The stabilizer is configured to stabilize the ultrasound probe hand-free by the pad in contact with a skin surface of a patient when the ultrasound probe is placed on the patient. An ultrasound system can include a console and the above-described ultrasound probe assembly. A method can include using the above-described ultrasound system for hand-free ultrasound imaging while inserting a needle into an anatomical target to establish an insertion site for placement of a vascular access device.

Presented herein are techniques for locating a target structure disposed in a body of a subject and / or guiding a needle with respect to the target structure. In one example, an apparatus is provided that includes a locator portion and a needle guide portion. The locator portion is configured to locate a target structure disposed in a body of a subject, and a needle guide portion defines an aperture configured to have a needle positioned therewith. The needle guide portion is configured to align the needle at a target angle relative to the target structure.

An intravascular ultrasound “(IVUS”) device having an intrinsic or attachable needle guide is disclosed. In some embodiments, a sheath having a needle guide is used in connection with an IVUS device. The devices may be used in performing minimally invasive image-guided surgical procedures. The devices may be configured to maintain a needle placed through guide in the plane of the IVUS-array to improve visualization of the needle. In some embodiments, the device is used to facilitate the creation of a tract through the liver from the inferior vena cava to the portal vein using IVUS-guidance in a direct intrahepatic portocaval shunt procedure. The devices, systems, and methods can improve patient safety by decreasing the risk of off-target punctures, decrease procedure times, and allow procedures to be performed from a single access site.

The invention relates to a method for the automated determination of the position of the needle tip (N) of a biopsy needle (32), which is arranged in a needle holder (31) and can be moved along the longitudinal axis of a biopsy unit (30) for biopsy by means of the biopsy unit (30) and is guided by means of a needle guide (33), the method comprises the following steps: positioning the biopsy needle (32) in a needle holder (31), ascertaining the position of at least the needle tip (N) of the biopsy needle (32) by means of a sensor (35), and automatically calculating the distance from the needle tip (N) to a reference point. In addition, the invention comprises a device and a mammography system.

A HVLP spray unit with an electric fan comprising a needle valve for metering the paint which is fed to an air cap, the needle valve comprising a valve body with an elongate interior space, a valve needle, a compression spring and a seal, the interior space between the seal and a nozzle opening of the valve body being configured as a paint chamber, into which a feed channel for the paint opens and which is flowed through by the paint during spray operation of the HVLP spray unit. Here, the interior space of the valve body is tapered between the feed channel and the seal in such a way that a needle guide is formed, and that, in a manner which lies opposite the paint chamber, the seal is arranged so as to bear against the needle guide.

The device of the present invention is an ultrasound device which is used in a clinical setting to help users locate the correct position and angle for needle insertion. The device provides images of perpendicular image planes without needing to move the device thereby allowing a user to maintain a steady view of the target and surrounding anatomy in multiple image planes as the needle is advanced. The device may comprise a needle guide assembly which can adjust the needle guide angle to control needle insertion. The device may comprise a boot which provides acoustic coupling, sterility and needle guidance.

Provided is an ultrasonic diagnostic system, and the object is to display an angle at which puncture can be performed according to a mounting state of a puncture adapter to an ultrasonic probe. An intraperitoneal insertion type ultrasonic probe guides a puncture needle at an arbitrary angle within a prescribed angle range, and has a through-hole (214) having an inverted triangular shape in a head portion (210). A puncture adapter (400) is mounted to the head portion (210) by being inserted into the through-hole (214) through an insertion portion having an inverted triangular shape. The puncture adapter (400) has a needle guide hole (406) that guides the puncture needle at a fixed angle. An ultrasonic diagnostic apparatus generates a second graphic image having a third line (504c) indicating an inclination angle of the needle guide hole (406) and displays the second graphic image overlaid on an ultrasonic image when the puncture adapter (400) is mounted, and generates a first graphic image indicating the prescribed angle range determined by an inclination angle of an inner wall of the through-hole (214) and displays the first graphic image overlaid on the ultrasonic image when the puncture adapter (400) is not mounted.

The invention discloses a surgical tool for hip joint surface replacement, and relates to the technical field of surgical instruments, the surgical tool comprises a 3D-printed Scrib needle guider based on a preoperative CT model, a Scrib needle, a sleeve milling cutter, a first running stop ring, a second running stop ring, a plane milling cutter, a connecting piece and a bone drill, the Scrib needle guider is printed according to the specificity of a patient, the center of the femoral head can be accurately positioned, the first running stop ring is used for limiting the milling depth of the sleeve milling cutter, the second running stop ring is used for limiting the cutting depth of the plane milling cutter, and the bone drill is provided with the third running stop ring and scales, so that the drilling depth can be accurately controlled; according to the femoral head surface replacement device and method, accurate and safe operation of femoral head surface replacement is achieved, the bone mass of a patient is reserved, the prosthesis adaptation degree and fixing stability are improved, and reliable tool support is provided for the whole process of an operation.

A needle guide assembly is provided having a body section and a needle guide body. The body section is configured to engage the head of an ultrasound or similar imaging probe. The needle guide body includes a pair of parallel leg members that extend from the body section. The leg members form a channel therebetween that is sized and configured to allow a needle to be inserted therethrough and into the tissue of a patient under visual observation by the imaging probe.

Blood vessel recognition and needle guidance systems, components, and methods thereof. A console can be configured to initiate a target recognition process for recognizing an anatomical target, such as a blood vessel, of a patient and a needle guidance process for guiding insertion of a needle into the anatomical target using ultrasound-imaging data received by the console. The system can perform target identification based on machine learning models which can be trained to recognize targets based on the ultrasound image. The ultrasound probe can be configured to provide to the console electrical signals corresponding to the ultrasound-imaging data. The ultrasound probe can include an array of transducers and, optionally, an array of magnetic sensors respectively configured to convert reflected ultrasound signals from the patient and magnetic signals from the needle, when magnetized, into the electrical signals.

A guidance system for guiding an intervention device such as a needle to a target location such as a vessel while remaining within a field of view of an imaging device such as an ultrasound. The guidance system may include an attachment mechanism for removable attachment to a specific ultrasound probe or which is adaptable to multiple different probes. A guidance mechanism may extend outwardly from the attachment mechanism for guiding the angle and depth of the intervention device. The guidance mechanism may include a plurality of openings through which the intervention device may be selectively inserted, with each opening being configured for a different angle and / or depth. Alternatively, the guidance mechanism may include a single opening that is adjustable along an arcuate path. A release mechanism may be included to allow the intervention device to be safely removed from the guidance mechanism without undue movement of the intervention device.