48 results about "Needle localization" 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.

The present invention discloses a traditional Chinese medicine microneedle positioning negative pressure desilting device and method for treating vascular stasis, which relates to the field of medical equipment technology. The device comprises a fixing base and a negative pressure cup, wherein the negative pressure cup is detachably mounted on the fixing base, and the fixing base is provided with two vacuum pumps for communicating with the negative pressure cup. The negative pressure cup comprises an outer cup, an inner cup, and a needle holder. The outer cup is sleeved on the outside of the inner cup and is opened downward. A first chamber is formed between the outer cup and the inner cup, and a second chamber is formed inside the inner cup. A cushion is provided between the outer cup and the inner cup port. The needle holder is located above the negative pressure cup, and a microneedle body is provided inside the needle holder. The microneedle body is driven downward to extend and retract by a telescopic mechanism. An outer connecting pipe and an inner connecting pipe are provided above the side walls of the outer cup and the inner cup, respectively, which are connected to the interface ends of the two vacuum pumps. The present invention can significantly reduce the incidence of pain and bruises in patients, improve the efficiency of desilting and the safety of use, and shorten the medical operation time, thus having significant clinical and industrial value.

The invention aims to provide an electrode needle positioning device, which comprises a first scale, a second scale, a first guide hole, a second guide hole and a second guide hole, and is characterized in that the first scale is provided with a first guide hole for an electrode needle to pass through; the first vernier is connected with the first scale in a sliding mode, a second guide hole for an electrode needle to penetrate through is formed in the first vernier, and the axis directions of the first guide hole and the second guide hole are parallel to each other. Therefore, the plurality of electrode needles can be kept parallel in ablation treatment, the gap distance among the plurality of electrode needles can be controlled, the bifurcation risk of the needle tip is reduced, the operation difficulty is reduced, and the operation risk is reduced.

A biopsy needle positioning system, a biopsy needle positioning method, and a medical device system is described. The biopsy needle positioning system includes a marker assembly including a marker and a cannula that is fixed relative to the marker and carries a biopsy needle, an image acquisition apparatus being mounted at a position at which the marker can be photographed, and configured to acquire an RGB image of the marker and a depth image corresponding to the RGB image, and a positioning apparatus, which extracts an RGB feature and a point cloud feature of the marker based on the RGB image and the depth image of the marker by using a trained network model, and estimates an estimated position and attitude of the marker based on the RGB feature and the point cloud feature, to obtain an insertion point and an insertion angle of the biopsy needle.

The application relates to the technical field of medical image processing, and discloses a needle insertion positioning device, a control method thereof and a storage medium. The needle insertion positioning device comprises an ablation needle, a magnetic calibration module and an auxiliary needle insertion module. The magnetic calibration module is used for acquiring a three-dimensional image model corresponding to a target object, searching for magnetic calibration position information and image calibration position information according to the three-dimensional image model, and constructing a conversion relationship from a magnetic positioning coordinate system to an image coordinate system of the three-dimensional image model according to the magnetic calibration position information and the image calibration position information. When the magnetic calibration module and the ablation needle are respectively detachably arranged in the auxiliary needle insertion module, the auxiliary needle insertion module acquires magnetic positioning information corresponding to the magnetic calibration module, converts the magnetic positioning information into needle insertion pose information of the ablation needle on the three-dimensional image model by using the conversion relationship, and displays the needle insertion pose information. The application realizes accurate positioning of needle insertion of the ablation needle and an action area of the ablation needle, so that the needle insertion direction and position of the ablation needle can be adjusted.

The present invention relates to an internal radiotherapy implant needle guide, comprising a rod-shaped body, a central bore arranged along the central axis of the rod-shaped body, axial needle passageways evenly distributed along the circumference of the rod-shaped body and arranged parallel to the central boreway, a plurality of oblique needle entry openings arranged on the side of the rod-shaped body's tail end, and a plurality of oblique needle exit openings arranged on the side of the rod-shaped body's head end; the oblique needle entry openings and oblique needle exit openings correspond to each other and are connected by the oblique needle passageways. The present invention facilitates implant needle positioning and has a simple structure.

The invention discloses an anal fistula probe positioning device capable of being automatically adjusted, and belongs to the technical field of medical equipment. The device comprises a needle seat, a nickel-titanium memory alloy probe with the phase change temperature consistent with the human body temperature is installed at the front end of the needle seat, the end of the probe is connected with a miniature ultrasonic probe with a guide seat, the direction of the guide seat is controlled through a first traction line, a second traction line, a corresponding first motor and a corresponding second motor, and automatic adjustment of the direction of the probe is achieved through a miniature pressure sensor and a control module. The surface of the probe is provided with a groove and sleeved with a film pipe sleeve, an electric heating wire is embedded in the probe, and the rear end of the probe seat is connected with a silica gel ring, a corrugated sheet, a grip and a signal transmission wire. The memory alloy probe conforms to the shape of a fistula, and tissue damage is avoided; the miniature ultrasonic probe performs real-time imaging to solve the problem of blind vision; pressure sensing is linked with the motor to achieve automatic steering of the probe, positioning precision and operation safety are improved, vibration is reduced through a holding structure, and operation stability is guaranteed.

The invention discloses an acupuncture physical therapy device, which relates to the technical field of acupuncture physical therapy and comprises two parts, namely an acupuncture point and needle inserting positioner held by an acupuncture doctor and a moxibustion device mounted on a treatment bed. According to the acupuncture point and needle inserting positioner, the sliding ruler, the calculator and the adjustable marker post are used for measuring and determining the acupuncture point and controlling the depth and angle of needle inserting, and the accuracy and safety of acupuncture can be improved; according to the moxibustion device, moxibustion can be applied to a plurality of acupuncture parts of a patient at the same time through a plurality of movable and liftable suspended moxa cones, the positions and heights of the moxa cones can be adjusted according to needs, and moxibustion smoke is collected through an aluminum foil cover and a telescopic aluminum foil pipe and discharged outdoors. The two devices are matched for use, and the acupuncture curative effect can be improved.

This invention relates to the field of medical device technology and discloses a neurointerventional puncture positioning device based on ultrasound feedback adjustment. The device includes a base plate, a mounting frame, a puncture needle positioning component, and an ultrasonic probe. A synchronization component for synchronously adjusting the angles of the puncture needle positioning component and the ultrasonic probe is slidably mounted on the upper surface of the mounting frame. The device utilizes a combination of a slider, rotating shaft, synchronous wheel, synchronous belt, arc-shaped slide rail, worm gear, and worm. The worm gear drives the worm wheel to rotate a set of rotating shafts, and the torque is transmitted to another set of rotating shafts via the synchronous belt. This causes the two sets of arc-shaped slide rails to drive the ultrasonic probe and the puncture needle positioning component to rotate synchronously and at the same angle. This ensures that the imaging plane of the ultrasonic probe is always coplanar with the puncture path determined by the puncture needle positioning component, thus solving the problem of the needle tip leaving the field of vision due to "eye-hand separation." This device shortens preoperative preparation time, allows for synchronous micro-adjustment with one hand, and avoids over-adjustment that could damage tissue.

This invention provides an infusion port needle positioning aid, belonging to the field of medical devices. It includes a support frame, with vertical rods fixedly connected to both sides of the top of the support frame. A sliding sleeve is slidably connected to the outer surface of each vertical rod, and a first spring is fitted onto the outer surface of the vertical rod. An adhesive strip is fixedly connected to the bottom of the support frame. A positioning component for quickly fixing a butterfly needle is provided on one side of the sliding sleeve. The positioning component includes a disc fixed to one side of the sliding sleeve, with a slot inside the disc. Two clamping plates can firmly hold the butterfly needle, ensuring that the first needle is in the center of the slot, preventing the butterfly needle from shifting to one side of the slot and causing it to deviate from the puncture position of the infusion rod. This also avoids the decrease in elasticity and deformation capacity caused by long-term spring clamping, which could lead to permanent deformation and loss of initial clamping force or pre-tightening, resulting in loosening of the fixed object.

The invention relates to a surgical instrument arrangement device which comprises a needle die unit, the needle die unit comprises a supporting leg, two needle positioning hole plates and a plurality of shaping needles, and the two needle positioning hole plates are respectively an upper needle positioning hole plate and a lower needle positioning hole plate which are arranged on the supporting leg in parallel up and down; positioning needle holes in one-to-one correspondence are densely distributed in the two positioning needle hole plates, the shaping needles are configured to be limited to move in the positioning needle holes, each shaping needle is provided with a lengthening part which is longer than the distance between the two needle positioning hole plates, the two ends of each shaping needle penetrate out of the corresponding needle positioning hole plates respectively, and an overhead space for the shaping needles to stretch into is formed below the lower needle positioning hole plate; and the shaping needle is provided with a damping mechanism for keeping the shaping needle at any position. And cavities matched with the surgical instruments can be generated, so that corresponding counting of the instruments is facilitated.

The utility model discloses a kind of for cervical cancer's rear-mounted precision close-range treatment device, belong to the technical field of treatment equipment, including positioning plate, the positioning plate is equipped with through-hole, guiding column is installed in the through-hole, the inside both sides of the positioning plate are provided with adjusting hug device, the adjusting hug device passes through through-hole side wall, from both sides hug guiding column, the guiding column one end is provided with limit plate, the limit plate is located in the positioning plate side, the guiding column is equipped with central hole and several groups of side hole, central insertion pipe is installed in the central hole, side insertion pipe is installed in the side hole, the utility model discloses a kind of adapt to different patients use, improve the positioning effect of insertion needle, reduce the treatment device of influence to radiotherapy effect.

The tumor sampling device comprises a positioning assembly and a sampling barrel, the upper end and the lower end of the sampling barrel are open, a detachable guide pipe is installed at the bottom of the sampling barrel, a movable plate is arranged in the sampling barrel in a sliding mode, and an installation plate is fixed to the bottom of the movable plate. A sampling needle is fixed on the side surface of the mounting plate and is arranged in the guide pipe in a sliding manner. According to the tumor sampling device for the pathological diagnosis of the tumor patient, the positioning assembly is additionally arranged, the arranged positioning assembly assists the guide cylinder in use, the situation that the guide cylinder moves or even falls off when the sampling needle is moved is avoided, the sampling needle is conveniently positioned and guided through the guide cylinder, and meanwhile the guide cylinder plays a role in protecting the sampling needle; tumor cells after sampling are prevented from falling off from the sampling needle when the sampling needle is taken out, and the guide cylinder is arranged to assist the sampling needle to move to the tumor, so that the tumor cells are effectively sampled by the sampling needle.

Apparatus, systems, and methods are provided for localization of a needle within a patient's body using markers. In an exemplary embodiment, a probe includes a distal end for placement against a surface of the region and one or more antennas for transmitting electromagnetic signals into and receiving reflected signals from the region. A processor processes the modulated reflected signals at one or more of the surface locations to determine marker locations along the needle and generate a three-dimensional model of the body region and needle.

The utility model discloses a thigh intramedullary nail main nail guide needle location protection guider, including protection baffle, ring, location needle and closed conduit, protection baffle one side arc is provided to fit the human finger, the ring is provided on protection baffle arc side wall and up and down interval is provided at least two, the ring mouth is adjustable, and the location needle is provided with the ring mouth. The side, away from the arc-shaped side wall, of the protection baffle is longitudinally provided with a groove, the positioning needle is arranged on the end face of one end of the protection baffle, and the closed guide pipe is arranged on the outer wall of the end, provided with the positioning needle, of the protection baffle and communicated with the longitudinal groove. And the finger ring close to the positioning needle is a circular truncated cone-shaped ring body with a large upper part and a small lower part. According to the femoral intramedullary nail main nail guide needle positioning and protecting guider, the guide needle can be positioned and placed more conveniently, safely, quickly and accurately, so that the perspective frequency is reduced, and the operation time is shortened.

The utility model relates to the field of medical instruments, in particular to a disposable CT (Computed Tomography) positioning puncture fixed-angle guiding device which comprises a base, an angle arc-shaped frame and a needle clamping positioning sliding block. The base is matched with the angle arc-shaped frame, the needle clamping positioning sliding block capable of moving freely is matched, a puncture angle reference line on the angle arc-shaped frame is referred, and a clamping structure capable of clamping a large puncture needle and a small puncture needle is further arranged, so that the CT positioning puncture fixed-angle guiding device is small in size, accurate in positioning, easy to operate and convenient to use. The operation procedures of doctors are reduced, the operation time is shortened, and the working efficiency of the doctors is improved. Meanwhile, the long-time puncture pain of a patient is relieved, and good economic value and social value are achieved.

Ultrasound systems and methods that include and / or use interventional instruments (e.g., needles) are disclosed. In some embodiments, the ultrasound system has an interventional instrument having the at least one ultrasound transducer element attached to the interventional instrument and configured for insertion towards the patient anatomy as part of an insertion procedure. The ultrasound system is configured to: determine, during the insertion procedure, an occurrence of a trigger event; instruct, responsive to the determination of the occurrence of the trigger event, the at least one ultrasound transducer element to transmit the additional ultrasound; and determine, based on the reception of the additional ultrasound by the ultrasound scanner, that the interventional instrument is detected.

The invention relates to the technical field of hemodialysis sampling, and discloses a nephropathy internal medicine hemodialysis sampler which comprises a sampling barrel, a mounting assembly and a clamping assembly are arranged in the sampling barrel, and a moving assembly is arranged at the top end of the sampling barrel; the installation assembly comprises two sets of sawtooth grooves symmetrically formed in the one-third position of the front end in the sampling barrel, clamping bases are embedded in the sawtooth grooves in a sliding mode, and a needle tube is installed on the sampling barrel through the clamping bases. From needle tube insertion, lower needle positioning to sample extraction, the problems of shaking, deviation and slipping easily occurring in traditional handheld operation are solved, the risk of puncture failure, sample pollution or repeated puncture caused by unstable operation is greatly reduced, the technical threshold of an operator is lowered, the sampling success rate and the patient comfort are improved, and the operation efficiency is improved. Meanwhile, the device is high in overall structure integration level, does not need to be provided with redundant parts for sampling each time, has good universality and controllable cost, and is suitable for clinical daily mass dialysis sampling.

The utility model provides a medical contact pin assembling jig. The medical contact pin assembling jig comprises a base, a sliding way, a needle cylinder sliding table and a pin positioning assembly. A slideway is arranged on the base and is a linear slideway, and limiting blocks are arranged at the two ends of the slideway in the length direction respectively; a needle cylinder sliding table and a needle positioning assembly are arranged on the sliding way between the two limiting blocks, and a needle cylinder profiling groove used for containing a needle cylinder is formed in the needle cylinder sliding table; the bottom of the needle cylinder sliding table is assembled on the sliding way in a sliding mode. The utility model aims to provide a medical needle inserting and assembling jig which is suitable for assembling a manual needle and a needle cylinder, so that the operation of assembling the needle into the needle cylinder is convenient, time-saving, labor-saving and high in efficiency; and the needle placing channel and the needle cylinder profiling groove are correspondingly arranged, so that the reject ratio is reduced.

Cryogenic methods, cryogenic systems, and cryogenic devices for alleviating lower back pain in a patient. The cryogenic device includes a handpiece having a size and shape suitable for being supported in an operator's hand, and a needle probe coupled to a distal portion of the handpiece. The needle probe includes a probe body, at least one needle coupled to the probe body, and a supply tube of silica extending within a needle lumen. The system includes a guide configured to receive the at least one needle and position the at least one needle in proximity to a location of a target tissue associated with lower back pain, wherein the cryogenic device is configured to provide a desired iceball shape that remains on a distal portion of the guide after the at least one needle is removed from the guide. The system further includes a needle sheath configured to house the needle probe.

The embodiment of the invention provides a biopsy needle positioning system, a biopsy needle positioning method and a medical equipment system. The biopsy needle positioning system comprises: a marker assembly, wherein the marker assembly comprises a marker and a cannula which is fixed relative to the marker and carries a biopsy needle; the image acquisition device is mounted at a position where a marker can be shot, and is used for acquiring an RGB image of the marker and a depth image corresponding to the RGB image; and the positioning device is used for extracting the RGB features and the point cloud features of the marker according to the RGB image and the depth image of the marker by using a trained network model, and estimating the estimated position and posture of the marker according to the RGB features and the point cloud features so as to obtain the insertion point and the insertion angle of the biopsy needle. According to the embodiment of the invention, the biopsy cost can be reduced, and the working efficiency can be improved.

The utility model relates to medical auxiliary instrument technical field, concretely relates to a calcaneus sustentaculum tali guider, its characterized in that: including first guide needle, positioning module, second guide needle and guide module, first guide needle is positioned to the sustentaculum tali bone block through calcaneus cross angle gap and is inserted, positioning module is equipped with positioning channel in, positioning module is set on first guide needle through positioning channel, guide module is connected with positioning module through connecting rod, guide module is equipped with at least one with the same plane of positioning channel in guide channel, the included angle alpha is formed between guide channel and positioning channel, second guide needle is inserted from guide channel and can produce intersection convergence point with first guide needle. The utility model can accurately guide second guide needle to hit the sustentaculum tali bone block from the calcaneus lateral surface in the calcaneus operation, to reduce the fluoroscopy number in operation, and improve the operation efficiency, precision and safety.

Several needle insertion devices are disclosed, including devices that achieve a fixed or variable insertion angle. The fixed insertion angle device may include a channel guide with a stop to limit insertion to a desired depth. The fixed insertion angle device may also include a rack and pinion mechanism to maintain the insertion geometry to achieve a desired depth. The variable insertion angle design may include a channel guide with a stop to limit insertion to a desired depth. The variable insertion angle device may also implement a depth cam configured to associate an insertion angle with an insertion depth. Improvements to these designs are also disclosed.

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.

The application discloses a lung nodule positioning and ablation integrated device and method, which comprises a positioning and ablation needle, the positioning and ablation needle comprises an outer needle tube one, which is hollow inside and coated with an insulating layer on the surface; a positioning member made of a material with electric conductivity is arranged inside the outer needle tube one and used for being stabbed into a lung nodule and simultaneously serving as a radio frequency ablation electrode; a positioning guide wire made of a material with electric conductivity is coated with an insulating layer on the surface, and a hydrophilic coating layer is coated on the insulating layer; one end of the positioning guide wire is connected with the positioning member, and the other end of the positioning guide wire is led out from the inside of the outer needle tube one and connected with a radio frequency ablation device; and a pushing mechanism is sleeved on the positioning guide wire and used for pushing the positioning guide wire and stabbing the positioning member into the lung nodule. The application can solve the problems that the existing lung nodule positioning and radio frequency ablation need to be carried out in steps, the positioning is inaccurate, the lung nodule is prone to displacement and bleeding in the multiple puncture processes.

A method (100) for object (e.g., needle) positioning using ultrasound, the method comprising: (i) transmitting (120) a beam from elements of a single element of an array transducer of an ultrasound system (200); (ii) receiving (130) echo signals from the emitted beam at a single element of the array transducer, where at least some of the echo signals are reflected from a needle located at least partially within the patient; (iii) analyzing (140), by a processor of the ultrasound system, the received echo signal; and (iv) determining (150) a distance of the needle relative to the array transducer in the patient based on the analysis.

This invention discloses an automated production line for deburring dental burs, comprising a deburring mechanism for deburring dental burs, a vision inspection mechanism for inspecting the deburred burs, a pressing mechanism for pressing the deburred burs onto an electroplated insert plate, and a spatial transfer mechanism for transferring the dental burs. The deburring mechanism includes a deburring machine and a deburring worktable. The vision inspection mechanism includes a detection camera for acquiring images of the deburred burs and an image recognition processing system for image processing. The pressing mechanism includes a needle plate fixing mechanism for fixing the electroplated insert plate, a pressing plate for receiving the dental burs and pressing it onto the electroplated insert plate, and a pressing mechanism for driving the pressing plate to move spatially. This production line has advantages such as high production efficiency, stable and high product quality, and high positioning accuracy of the electroplated pressing needles.

Methods and devices for both imaging and treating uterine fibroid tumors in one real-time system are provided. One minimally invasive method comprises introducing a sheath into a uterus and determining a location of a fibroid using a visualization element within or on the sheath. Upon identification, a portion of the sheath is steered to position at least one treatment needle at the determined location. The needle is then anchored in uterine tissue and the fibroid treated with the needle.

The invention belongs to the technical field of traditional Chinese medicine acupuncture and moxibustion treatment, and particularly relates to an umbilical needle positioning and acupuncture method which comprises the following steps: S1, umbilical region positioning preparation: taking a supine position of a patient, exposing an umbilical region, taking an umbilical region anatomical structure as basic reference, removing dirt on the surface of the umbilical region and keeping the umbilical region skin in a natural loose state; s2, reference point determination: taking the center of the umbilical orifice as a core reference point, marking as an original point O, drawing a horizontal axis (parallel to the coronal plane of the body of the patient) and a vertical axis (parallel to the sagittal plane of the body of the patient) through the original point O, and forming an umbilical region positioning coordinate system; and S3, target acupuncture point positioning: determining a target acupuncture point to be punctured according to diagnosis and treatment requirements, and determining and marking the accurate position of the target acupuncture point by measuring the linear distance between the target acupuncture point and the original point O and the deflection angle of the target acupuncture point relative to the horizontal axis / vertical axis based on the umbilical region positioning coordinate system established in the step S2.

The invention discloses a puncture needle positioning assisting system for ultrasonic guided interventional operation, and relates to the field of puncture needle positioning assisting. Tissue thickness variation and tissue texture displacement are extracted to analyze the contact state of the probe and the tissue in the interventional operation process; in a compression stable state, generating a first needle point position sequence; generating a second needle point position sequence in a compression enhancing state or a compression releasing state; comparing the variation difference between the needle body movement variation and the tissue movement variation frame by frame, and generating a main needle point positioning result sequence at the current moment; and calculating the needle point position variation and the distance variation between the needle point position variation and the target region and the risk structure frame by frame, and when the distance variation is greater than a preset distance variation threshold, generating an updated main needle point positioning result sequence. The puncture safety of the ultrasound-guided interventional operation can be improved.