10 results about "Needle biopsy" patented technology

The invention provides a kidney needle biopsy quantitative teaching evaluation system and method based on mixed reality, and the system comprises a virtual-real space registration unit which is used for building the space mapping between a virtual kidney model containing a renal cortex layered anatomical structure and a simulation entity training model body, and completing the space registration of the virtual model and the entity model body; the operation data acquisition module is used for acquiring three-dimensional motion trail data of the puncture needle in the puncture operation process; according to the quantitative scoring module, the multi-dimensional weighted scoring model takes the cortical ratio as a core evaluation index, and the scoring dimension corresponding to the cortical ratio has the highest weight in the model; the quantitative scoring module calculates a cortical ratio based on the acquired three-dimensional motion trail data, and outputs an operation quantitative score through a multi-dimensional weighted scoring model; and the closed-loop verification unit is used for acquiring a real puncture result on the simulation entity training die body and comparing the real puncture result with the puncture track subjected to virtual calculation so as to calibrate the operation quantitative score.

The invention relates to the technical field of medical instruments, in particular to an aspiration biopsy needle for tumor tissue, a guide frame comprises a guide disc, U-shaped side guide plates are fixedly connected to the outer wall of the guide disc in an annular array mode, and columnar vertical connecting rods are fixedly connected to the bottom of the guide disc in an annular array mode; by arranging the guide frame and the positioning piece, precise positioning and stable fixing of the tumor tissue needle biopsy needle are achieved, through cooperation of the guide frame and the vacuum adsorption block, the whole device can be quickly and firmly positioned at the part, needing to be punctured, of a patient, a stable foundation is provided for subsequent operation, and the operation efficiency is improved. An electric push rod pushes a rotating block to move downwards to drive a series of linkage structures, so that a clamping block can be flexibly adjusted and accurately fixed according to the position of a puncture needle sliding tube, it is ensured that the puncture needle cannot deviate in the insertion process, and the puncture accuracy and success rate are greatly improved; and extra pain and risk brought to a patient due to inaccurate puncture are effectively reduced.

An inner core is telescopically arranged in a needle tube, one end of the needle tube is concentrically fixed with a sleeve through a Luer taper, a needle head is arranged at the other end of the needle tube, a boosting tube is sleeved outside the rear section of the needle tube, a sheath tube is sleeved outside the front section of the needle tube, and the needle head extends to the outside of the sheath tube. The sheath tube is arranged at the front end of the core rod through the end socket fixing seat, the front section of the core rod is sleeved with an adjusting cylinder in a sliding mode, the rear section of the core rod is sleeved with the sleeve in a sliding mode, an adjusting ring is arranged between the adjusting cylinder and the sleeve, a first adjusting screw is arranged between the adjusting ring and the core rod, and a second adjusting screw is arranged on the side portion of the adjusting cylinder. The ultrasonic needle biopsy needle is convenient to use, wider in applicability and capable of effectively improving the sampling effect.

The present application relates to the technical field of needle sampling device, and particularly relates to an ultrasound-guided puncture needle sampling device, which comprises a needle tube, a sliding cavity is formed in the needle tube, a sampling cavity is formed in the outer wall of the distal end of the needle tube and communicates with the sliding cavity, and the sampling cavity is used for allowing the tissue to be sampled to enter after puncture positioning; a sampling assembly comprises a cutting head, a piston plate, an inner sliding rod and an outer sliding sleeve, the cutting head is sealingly and slidably arranged in the sliding cavity and can move along the axial direction of the needle tube and rotate around the axis of the needle tube. Through cooperation of the needle tube, the sampling cavity, the cutting head, the piston plate, the inner sliding rod, the outer sliding sleeve and the driving assembly, after one-time puncture positioning is completed under the ultrasound guidance, the tissue to be sampled can first enter the sampling cavity, then the cutting head moves forward and rotates to cut in the sliding cavity, and the cut tissue sample can be sucked into the cutting head through the negative pressure formed by the backward movement of the piston plate, so that the number of repeated puncture sampling is reduced.

The utility model discloses a developing type puncture needle suite which comprises a hollow outer needle tube and a solid inner needle rod which are connected with an external biopsy gun device, wherein the solid inner needle rod is positioned on an inner cavity of the hollow outer needle tube; a sampling groove is formed in the end, away from the biopsy gun device, of the solid inner needle rod, and at least one section of inner ultrasonic developing area and at least one section of outer ultrasonic developing area which are used for assisting in recognizing the position where puncture reaches a target area and assisting in confirming the sampling position and the sampling length are arranged on the sampling groove and the hollow outer needle tube respectively. Before the biopsy gun device acts, the projection, located at the central axis position of the hollow outer needle tube, of the outer ultrasonic developing area and the projection, located at the central axis position of the hollow outer needle tube, of the inner ultrasonic developing area coincide. The needle biopsy device has the advantages of being capable of assisting an operator in identifying the position of a target area where puncture arrives and accurately confirming the sampling position and the sampling length so as to improve the needle biopsy precision.

A system and a method for determining a target point for a needle biopsy may be provided. The method may include obtaining a first localization image and a second localization image regarding a region of interest (ROI) of a subject. The method may include labelling a plurality of pairs of markers for the ROI on the first localization image and the second localization image. The method may include determining a space position of each of the plurality of pairs of markers. The method may include generating visualized data regarding the ROI based on the space positions of the plurality of pairs of markers, and determining the target point for the needle biopsy based on the visualized data.

The invention belongs to the technical field of medical supplies, and particularly relates to a pulmonary nodule minimally invasive needle biopsy excision device which comprises a main body, the main body is connected with a hose and a hard tube, the hard tube is provided with a negative pressure opening, and the negative pressure opening is communicated with a negative pressure tube; the cutting part comprises a cutter A, a push rod is arranged on the cutter A, the push rod is connected with a driving block, and the driving block is connected with a guide wire A and a handle A; the annular cutting part comprises a rotating pipe, a sleeve is arranged in the hard pipe, the sleeve is connected with a gear shaft, the hard pipe is connected with a rotating ring, the gear shaft is connected with the rotating ring, and a cutter B is connected in the rotating ring; and the adjusting part comprises a sliding block, the rotating ring is connected with a gear ring, and the gear ring is connected with the cutter B. According to the thoracic nodule cutting device, a nodule in the thoracic cavity can be annularly cut, so that the internal condition of the nodule can be conveniently observed, the cutting depth of the cutter can be adjusted according to the excision requirement, then epidermis excision or complete excision can be selected at will, the nodule with the large size can be cut, and the cut nodule can be conveniently discharged.

The invention discloses a soft tissue tumor needle biopsy needle device which comprises a needle tube provided with a piston cavity and a piston axially sliding in an inner cavity of the piston cavity, the piston is connected with a driving part extending to the outside of the needle tube, and a one-way breathable one-way valve tube is arranged on one side of the lower portion of the piston cavity. The lower end of the needle tube is sequentially connected with a pressure stabilizing tube and a buffer tube connected with the pressure stabilizing tube, a needle body is arranged at the lower end of the buffer tube, the pressure stabilizing tube comprises a tube body connected with the needle tube and the buffer tube, the upper portion and the lower portion of the tube body are respectively connected with a fixing plate provided with a plurality of air holes and a sealing block provided with a spherical adaptive through hole, and the lower portion of the fixing plate is fixedly connected with a spring. And the lower end of the spring is fixedly connected with a steel ball matched with the spherical adaptive through hole. According to the tumor tissue sampling needle, normal continuous sampling can be guaranteed, fragmented tumor tissue backflow can be effectively avoided, the total quantity of continuously obtained tumor tissue samples is guaranteed, the needle body can be effectively fixed, shaking of the needle body during continuous sampling is avoided, and safe puncture operation is guaranteed.

According to the laser navigation device for guiding the puncture path, the horizontal sliding mechanism in the laser navigation device achieves horizontal and vertical position adjustment of the position indicator through the sliding seat and the linear driver, and the angle adjustment flexibility of the position indicator is guaranteed through spherical hinge connection. A vertical line laser head and an angle line laser head in the positioning instrument are used for indicating the transverse position of a needle inserting point and a puncture path respectively, the angle line laser head is accurately driven by a first driving motor to rotate to a required angle, and under special conditions such as the laser is shielded, after the angle of the positioning instrument is adjusted, a three-axis sensor can sense the inclination angle of the positioning instrument, and the puncture path is adjusted. And the angle laser rays are automatically corrected, so that the puncture accuracy is ensured. The whole system effectively improves the accuracy, convenience and intelligent degree of CT-guided needle biopsy operation through close cooperation of all parts, reduces personal errors, and improves the medical operation efficiency and quality.

The invention relates to the technical field of ultrasonic puncture intervention, in particular to an ultrasonic intervention device for assisting needle biopsy, which comprises an ultrasonic probe and a puncture frame, a groove is formed in a base of the puncture frame, a fixing shaft is fixedly connected to the bottom of the groove, a fixing needle seat is rotatably connected to the fixing shaft, and a T-shaped sliding groove is formed in the outer side of the fixing needle seat; a movable needle seat is arranged in the T-shaped sliding groove in a sliding fit mode, supports are fixedly connected to the inner walls of the T-shaped sliding groove, first wedge-shaped blocks are hinged to the supports, torsion springs are arranged on the supports, a semi-open needle groove is formed in the movable needle seat, a puncture needle is arranged in the needle groove in a sliding fit mode, and unlocking assemblies are arranged in the fixed needle seat. The first wedge-shaped block is triggered to contract and clamp through insertion and extraction of the movable needle seat, the movable needle seat is detached, namely the puncture needle is fixed, the stability of the puncture needle in the detaching process of the movable needle seat is ensured, the movable needle seat is completely separated to trigger the unlocking assembly to release fixation, and the stability of the puncture needle is ensured.