119 results about "Puncture Biopsy" patented technology

The invention discloses a tumor needle biopsy robot and an image real-time navigation system thereof, and relates to the technical field of medical instruments, and the method comprises the following steps: extracting historical data, and constructing a segmentation model according to the historical data; acquiring a plurality of medical images of the patient, and constructing a three-dimensional model of the patient according to the plurality of medical images; constructing a visual puncture path according to the three-dimensional model; the method comprises the following steps: acquiring optical tracking data, acquiring a needle point position according to the optical tracking data, correcting a puncture path according to the needle point position, acquiring a path point sequence according to a puncture starting point, a target point, a cost function and a graph structure when an optimal path is planned, and continuously adjusting the path through a path optimization algorithm. The path is far away from key tissues such as important blood vessels and nerves, the path is prevented from excessively approaching or directly penetrating through a dangerous area, so that the rationality of optimal path planning is ensured, the precision controllability of the puncture process is enhanced, the puncture path is corrected in real time through the position of the needle tip, and the possibility of the scheme is further improved.

The invention relates to a pulmonary nodule minimally invasive needle biopsy excision device, and relates to the technical field of medical instruments. The system comprises a mechanical arm electrically connected with CT equipment, navigation auxiliary equipment, a puncture assembly detachably connected with the mechanical arm and used for puncturing human tissue, a sampling assembly for sampling tissue at a nodule and a marking assembly for marking the sampling position; the puncture assembly comprises a mounting base detachably connected with the mechanical arm and a puncture needle arranged on the mounting base, and the end of the puncture needle is sharp. The puncture needle is arranged in a hollow mode, the sampling assembly comprises a rotary cutting cylinder rotationally arranged in the puncture needle and a power part for driving the rotary cutting cylinder to rotate, a first rotary cutting opening is formed in the puncture needle, a second rotary cutting opening is formed in the rotary cutting cylinder, and the first rotary cutting opening movably corresponds to the second rotary cutting opening. The biopsy sampling device has the advantages that the sampling amount of each biopsy sampling is conveniently increased, the puncture sampling frequency is reduced, and meanwhile the radiation dosage is reduced.

The invention discloses a multi-modal image fusion assisted precise tumor needle biopsy guide system, and aims to solve the problem that the traditional needle biopsy guide technology is insufficient in precision. The system innovatively adopts a multi-scale feature fusion algorithm and an adaptive weight fusion strategy, deeply fuses ultrasonic, CT, MRI and other multi-modal images, and comprehensively improves the information amount of the images. Through real-time force feedback and path adjustment, in combination with VR / AR guide interaction, intelligent puncture guide is realized, and safe and accurate operation is guaranteed. Tumor features are extracted by using a deep learning algorithm, accurate tumor recognition and dynamic image analysis are realized, and the tumor growth trend is predicted. According to the system, the precision and success rate of needle biopsy are remarkably improved, the pain of a patient and the medical cost are reduced, powerful support is provided for personalized precise treatment of tumors, and the system has extremely high clinical application value.

The invention relates to a double-channel lung lesion biopsy robot and a control method, and relates to the technical field of surgical instruments / minimally invasive surgery robots, the double-channel lung lesion biopsy robot comprises a first positioning mechanical arm, a second positioning mechanical arm, a first instrument driving mechanical arm, a second instrument driving mechanical arm, a bronchoscope and a puncture needle, the first positioning mechanical arm and the first instrument driving mechanical arm are used for automatically or manually positioning the bronchoscope to the focus position, and the second positioning mechanical arm and the second instrument driving mechanical arm are used for controlling the puncture needle to implement puncture biopsy through the chest wall. The problem that an existing surgical robot technology cannot be completely suitable for the whole lung when applied to lung lesion biopsy is solved, two biopsy channels are planned at the same time in a unified preoperative planning mode, and image data information obtained through a bronchial channel is used for focus position correction; and an integrated double-arm structure and a seamless switching control mode are designed, so that biopsy of the whole lung focus is completed more accurately in a one-stop mode.

The invention discloses a transuterine ultrasonic guided puncture biopsy device, which belongs to the technical field of medical instruments and comprises an ultrasonic probe and a power component, two ends of the power component are respectively connected with a puncture channel and a handle, and the other end of the puncture channel is rotatably connected with one end of a rotary cutting head. One end of the rotary cutting head is connected with a handle, the other end of the rotary cutting head is connected with a telescopic puncture needle, the handle is provided with a puncture needle reset button, a puncture needle exit button and a rotary cutting button, and the puncture needle reset button and the puncture needle exit button are connected with the puncture needle. The puncture needle can be accurately guided to target tissue, puncture accuracy is improved, puncture failure and mistaken puncture risks are reduced, various functional buttons are arranged on the handle, medical staff can easily perform various operations, operation difficulty is reduced, working efficiency is improved, and the puncture needle can be matched with various ultrasonic devices and is convenient to use. And the method has good compatibility.

The invention discloses orbital tissue needle biopsy equipment and system. The orbital tissue needle biopsy equipment comprises a controllable sleeve, a plurality of driving components and a needle biopsy needle. Wherein the controllable sleeve comprises a sleeve body and a traction rope, and a plurality of groove groups are formed in the surface of the sleeve body; the traction rope in the casing pipe body penetrates through the whole length of the casing pipe body from the interior of the traction rope channel, and the driving component pulls the traction rope to control the bending direction and / or angle of the controllable casing pipe. The orbital tissue needle biopsy system comprises the needle biopsy equipment, a mechanical arm and B-ultrasonic equipment, under the guidance of the B-ultrasonic equipment, the mechanical arm is used for controlling the movement of the controllable sleeve and / or the needle biopsy needle, the driving component is used for controlling the bending direction and / or angle of the controllable sleeve, and the controllable sleeve and / or the needle biopsy needle are / is driven by the driving component. The needle biopsy needle can bypass an eyeball to directly reach a focus, and the minimally invasive property, accuracy and safety of biopsy are improved.

The present invention discloses a soft tissue tumor puncture biopsy needle device, including a needle tube, a needle handle and a driving unit. A cylinder cavity is provided inside the needle handle; the proximal end of the needle tube is connected to the needle handle and the internal channel of the needle tube is connected to the cylinder cavity; a piston is slidably connected in the cylinder cavity, a driving structure is installed on the needle handle, and the output end of the driving unit is connected to the piston, which is used to drive the piston to slide in the cylinder cavity; an exhaust port connected to the outside is also provided on the cylinder cavity, and a one-way valve that only allows gas to flow from the cylinder cavity to the outside is provided on the exhaust port. The soft tissue tumor puncture biopsy needle device provided by the present invention can continuously draw the target object into the internal channel of the needle tube without the need for multiple punctures, and at the same time, it is not necessary to leave a safe distance like a cutting needle.

The utility model relates to the technical field of puncture needles, in particular to a medical electric puncture biopsy needle which comprises a handle and a driving mechanism fixedly connected with the handle, the driving mechanism comprises a shell and a motor located in the shell, the output end of the motor is fixedly connected with a connecting piece, the connecting piece is detachably connected with a puncture needle assembly, and the puncture needle assembly is fixedly connected with the handle. And a battery assembly for supplying power to the motor is arranged in the handle. According to the electric puncture needle, when bone puncture operation is carried out, a puncture doctor needs to hold a handle, the handle is mainly used for controlling the direction and exerting certain pressure, a needle sleeve and a needle core are driven by a motor to rotate left and right rapidly and cut bone tissue continuously, the puncture accuracy can be greatly improved, the time is greatly shortened, and the puncture efficiency is greatly improved. Meanwhile, physical exhaustion of doctors is relieved, operative complications can be greatly reduced, and benefits are brought to the majority of patients.

The invention discloses a tumor risk prediction method and system for assisting prostate needle biopsy decision based on deep learning, and belongs to the technical field of medical artificial intelligence. According to the system, a four-dimensional dynamic fusion and double closed-loop optimization architecture is innovatively constructed, and accurate prediction of prostate cancer risk and intelligent planning of a puncture path are realized through five core modules; a data acquisition module integrates preoperative MRI, intraoperative ultrasound (including SWE and blood flow data), driving gene data and puncture instrument sensing data; the intra-operative real-time multi-modal fusion module adopts a space-time attention Transform network and a CNN-GRU network to realize dynamic feature fusion; the image-genome association modeling module establishes association between a molecular mechanism and an image phenotype through a knowledge graph and a GAT network; the unsupervised field generalization module is combined with a PLDG mechanism and federated learning to improve the cross-center adaptability of the model; and the reinforcement learning real-time navigation module realizes dynamic adjustment of a puncture path based on a PPO algorithm.

The invention belongs to the technical field of lung tissue lesion positioning, and particularly relates to a lung tissue lesion position positioning system and method based on three-dimensional reconstruction. According to the method, overall and local two-stage registration is combined, whole-lung expansion errors are corrected, local deformation is compensated, the lesion position and image alignment is achieved, the three-dimensional lesion position is displayed through the augmented reality technology, doctors are helped to visually master spatial distribution of the focus in the body of a patient, the safety and the success rate of operation or needle biopsy are improved, and the operation efficiency is improved. Based on a breathing model and an elastic registration method, the method can adapt to lung compliance differences and breathing movement conditions of different patients, is particularly suitable for severe or old patients difficult to keep stable breathing, reduces the risk of blind penetration or excessive resection through accurate positioning, and reduces tissue damage and the occurrence rate of postoperative complications.

The present invention discloses a CT-guided percutaneous puncture lung nodule cutter, comprising an outer sheath puncture guide needle and a net bag-shaped electromagnetic cutting system, wherein a hollow sleeve is arranged inside the outer sheath puncture guide needle, and the net bag-shaped electromagnetic cutting system is arranged in the space between the outer sheath puncture guide needle and the hollow sleeve, wherein the main body of the net bag-shaped electromagnetic cutting system is made of a tubular polymer shape memory material, and at the same time, the position of the tubular shape facing the tip of the outer sheath puncture guide needle is integrally formed into two net bags; the invention ensures the comfort of patients, the safety of doctors' operation, and the effectiveness of pathological sampling, and allows medical personnel engaged in puncture biopsy to use the pulmonary nodule puncture cutter, which is simple and easy to operate, and has safe and accurate positioning, and significantly improves the success rate of pathological diagnosis of pulmonary nodules, while reducing the economic burden of patients and improving their comfort; it is also conducive to promoting and popularizing CT-guided percutaneous cutting biopsy of pulmonary nodules.

The invention relates to the technical field of needle biopsy, and discloses a tumor needle biopsy positioning device which comprises a shell, a negative pressure assembly is arranged at the bottom of the shell, a plurality of supporting rods are fixedly connected to the upper surface of the shell, an annular sliding rail is fixedly connected between the top ends of the supporting rods, two sliding blocks are movably connected to the outer side of the annular sliding rail, and the two sliding blocks are fixedly connected to the outer side of the shell. The invention further provides a tumor needle biopsy positioning method which comprises the following steps that a patient lies flat, the whole device is placed on the skin on the outer side of the position needing to be examined, and then the device is placed on the outer side of the position needing to be examined; according to the device, the position of the puncture needle stretching into the skin detection part of a patient with the required depth can be limited, the position of the puncture needle can be more accurately adjusted, and the position of the puncture needle located at the bottom of the positioning cylinder can be subjected to auxiliary positioning through the positioning clamping assembly.

The coaxial puncture needle comprises a needle core, a needle sheath and a limiter, the needle core is arranged in the needle sheath in a penetrating mode, the limiter is arranged on the needle sheath in a sleeved mode, the depth of the needle sheath puncturing into the skin is limited through the limiter, an adhesive tape is attached to the periphery of the limiter, and the adhesive tape is attached to the periphery of the limiter. The limiter is attached to the skin through the adhesive tape to prevent the needle sheath from being taken away from the skin, the head end of the needle core is sharp, the tail end of the needle core is provided with a needle core buckle, the tail end of the needle sheath is provided with a needle sheath buckle, the needle core is buckled on the needle sheath buckle through the needle core buckle and is connected with the needle sheath, the needle sheath buckle is provided with a lever, and the lever is connected with the needle sheath through the lever. The needle core buckle is bounced by pressing the lever, so that the needle core is bounced out of the needle sheath. Compared with the prior art, the efficiency and the safety of ultrasonic real-time guided needle biopsy are improved.

The invention provides a same-layer registration method for an MR cross section diagram and a total tumor pathological section based on 3D printing. The same-layer registration method comprises the steps of obtaining an MR image, extracting an interested volume, designing a 3D printing mold matched with a focus in shape and assisting registration of a pathological section and the MR image. MR image layering thickness information is embedded into mold design, the thickness of a mold section is consistent with the thickness of an MR scanning layer, and direction information is marked in a mold to ensure spatial alignment of a pathological section and an MR image. The manufactured pathological section is accurately matched with an MR cross section diagram through a non-rigid image registration algorithm, and layer-by-layer comparative analysis of a tumor image and pathology is achieved. The whole tumor area can be covered, and registration errors caused by needle biopsy limitation, tissue deformation and resolution difference in the prior art are overcome. The method is high in applicability and can be used for image-pathology conjoint analysis of various types of tumors, the registration precision is remarkably improved, the error is controlled within 0.1 mm, and important support is provided for tumor research and accurate diagnosis.

The invention relates to a pathological risk prediction method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: acquiring to-be-predicted data and a needle biopsy result of a target user; determining a target image prediction model according to the puncture biopsy result; performing risk level feature construction on to-be-predicted image data of the to-be-predicted data according to the target image prediction model to obtain an image level probability vector; performing overall feature construction according to the image level probability vector and the to-be-predicted data to obtain an overall risk feature vector; and according to a pre-trained target pathology risk prediction model, performing pathology grading prediction on the overall risk feature vector to obtain a pathology grading prediction result. By adopting the method, the pathological risk level can be accurately predicted in combination with the multi-modal data.

The utility model discloses a centrum puncture biopsy needle which comprises an outer tube structure, the outer tube structure comprises an outer sleeve, the outer sleeve is provided with an outer tube handle, the outer tube handle is provided with a main installation opening communicated with the outer sleeve, and the outer sleeve can be spliced with an inner core structure or an inner tube structure; the inner core structure comprises a puncture cone, a cone handle is arranged at one end of the puncture cone, and the cone handle is connected with the outer tube handle through an assembling assembly; according to the puncture device, tissue sclerotin can be effectively cut off, sclerotin tissue can be cut into the inner sleeve, target sclerotin can be conveniently extracted, the problem that an existing puncture device cannot accurately extract the target sclerotin is solved, positioning and assembling can be conducted, the precision during assembling is improved, and the puncture device is convenient to use. The precision of sampling operation is ensured, and the use is convenient.

The application discloses a kidney fibrosis grading method based on deep learning, an electronic device and a storage medium, and belongs to the field of image processing. The method comprises the following steps: scanning a whole slide digital image of a kidney puncture biopsy specimen to be graded after preparing the specimen, and segmenting the whole slide digital image into a plurality of whole slide local slice digital images; inputting the whole slide local slice digital images into a pre-trained grading model to obtain a kidney fibrosis grading result of the kidney puncture biopsy specimen to be graded, wherein the grading model is a two-stage weak supervision learning framework, which is used for screening a plurality of whole slide local slice digital images strongly related to the whole slide digital image in the first stage, and is used for splicing the plurality of whole slide local slice digital images strongly related to each other into one digital image and inputting the digital image into a deep learning convolution classification network to make a decision aggregation. Thus, the artificial intelligence technology and the image processing technology are applied to clinical medical diagnosis, and the problem of inaccurate artificial grading is solved.

The invention, which belongs to the technical field of the teaching system, discloses an interactive needle biopsy teaching system comprising a teaching unit, an assessment unit, a VR unit and a puncture operation unit. The teaching unit is in communication connection with the assessment unit, the VR unit and the puncture operation unit; the teaching unit is used for login of a user, storage of multiple VR teaching materials, selection of the VR teaching materials of the user and storage of a teaching progress; each VR teaching material is matched with a puncture model; the puncture operation unit is used for simulating puncture biopsy operation; the assessment unit is used for checking puncture assessment by a user and assessing simulated puncture biopsy operation; the VR unit is used for playing VR teaching materials and collecting real-time image data of simulated needle biopsy operation. Through the above mode, the user can carry out immersive learning and operation simulation on the VR teaching materials based on the VR unit.

The invention belongs to the technical field of biopsy guns, and provides a semi-automatic biopsy gun with the range capable of being adjusted at will. The invention comprises two parts, the first part is the improvement of the method, and the second part is the application of the main body of the invention patent of the auxiliary device. According to the biopsy gun main body, the coaxial needle main body and the auxiliary device, the coaxial needle main body and the biopsy gun main body are used in a matched mode, the auxiliary device is a set, different types of auxiliary devices are selected for use in the puncture process, and the auxiliary device is the key for completing accurate biopsy sampling. In conclusion, the device is reasonable in design, easy to operate and controllable in range, accurate biopsy sampling can be achieved, and the safety of needle biopsy is effectively improved; therefore, the device is suitable for industrial popularization.

The utility model belongs to the technical field of percutaneous puncture instruments, and discloses a puncture instrument fixed at a focus position during percutaneous puncture biopsy, which comprises a sleeve, a needle core and an anchoring structure. The anchoring structure comprises a rotating shaft, a shaft tube, an anchoring part and an adjusting part; the rotating shaft is fixed on the sleeve; the anchoring part and the adjusting part are integrally connected with the shaft tube; when the needle core extends into the sleeve, the adjusting part is controlled to rotate in the positive direction and the negative direction along the rotating shaft, so that the anchoring part is switched between an anchoring position and a retraction position, and when the needle core extends into the sleeve, the adjusting part is controlled to rotate in the positive direction, so that the anchoring part rotates to the retraction position; when the needle core is withdrawn from the sleeve, the adjusting part is controlled to rotate reversely, so that the anchoring part is rotated to an anchoring position, and the sleeve and the needle core can be ensured to enter or withdraw from a focus position safely in a combined state through the arrangement; and after the needle core is withdrawn from the cannula, the cannula is anchored at the focus position by the anchoring structure, and the position is not changed, so that the biopsy needle enters an accurate biopsy position, and the puncture success rate is improved.

The utility model discloses a bone needle biopsy needle, which relates to the technical field of bone needle biopsy and comprises a handle and a groove arranged at the top of the handle, a sleeve penetrating through the handle is arranged at the bottom of the handle, a needle core and a sampling needle matched with the sleeve are inserted in the sleeve, and an inclined cutting edge is arranged at the bottom of the sleeve. Sampling lines are arranged on the inner wall of the sampling needle, the bottom of the needle core extends to the outer side of the sleeve, a polishing surface is arranged at the tail end of the needle core, the bottom of the needle core is an elliptical sphere, the whole sphere is made of metal with the hardness larger than that of a skeleton, and the polishing surface is arranged on the surface of the sphere. The grinding surface at the bottom of the needle core is ensured to have enough contact area with the bone, the grinding surface at the edge can be ensured to be in contact with the inner wall of a through hole when the needle core extending out of the sleeve is in contact with the through hole in the surface of the bone, and if the needle core cannot penetrate through the through hole, the through hole can be ground through the grinding surface at the tail end by rotating the needle core, so that the shape of the through hole is changed.

The utility model provides a needle biopsy device which comprises an outer shell, an outer knife tube, an inner knife tube and a transmission mechanism arranged in the outer shell, the near end of the outer knife tube is fixed to the far end of the outer shell, the far end of the inner knife tube is inserted into the outer knife tube, a first sliding face is arranged on one inner wall of the outer shell, and a second sliding face is arranged on the other inner wall of the outer shell. The transmission mechanism comprises a driving part and a driven part, the driven part is arranged on the outer side of the inner cutter tube in a sleeving mode, the driving part is arranged on the outer side of one end of the driven part in a sleeving mode and is in threaded transmission connection with the driven part, and a first guide structure and a limiting structure corresponding to the first sliding face are arranged on the driven part. The other inner wall of the outer shell is provided with a second guide structure slidably connected with the first guide structure so that the driving part can drive the inner knife tube to move relative to the outer knife tube, and the limiting structure and the first sliding face are arranged at intervals, so that shaking of the inner knife tube in the moving process can be reduced, the stability of the inner knife tube in a human body is improved, and the service life of the inner knife tube is prolonged. The injury risk of the patient is reduced.

The utility model discloses a brain tissue needle biopsy device, which relates to the technical field of medical instruments and comprises an arc-shaped mounting frame, a sliding block is arranged on the arc-shaped mounting frame, a support is arranged on the sliding block, limiting grooves which are symmetrically distributed are arranged on the inner side of the support, a movable block is arranged on the support, and the movable block is arranged on the arc-shaped mounting frame. The two ends of the movable block are in sliding connection with the support through the limiting grooves, a threaded rod is arranged on the movable block, the top end of the threaded rod penetrates through the support and is in threaded connection with the support, and a biopsy needle is arranged on the movable block. And deviation of a puncture position and a puncture angle is easy to occur, and the proficiency and the ability of a surgeon are too relied too much.

The utility model discloses a positioning device for improving the coincidence rate of breast ultrasound and molybdenum target diagnosis, which comprises a silica gel pad and a plurality of developing lines, and knots with different numbers or different shapes are arranged on the developing lines with the same shape; and each developing line is fixedly arranged inside or on the surface of the silica gel pad. The device is simple in structure, low in production and manufacturing cost and convenient to operate; by utilizing the characteristic that the developing line can develop in both the molybdenum target and the ultrasonic detection, the developing line can be used for accurately calibrating the focus position detected by the molybdenum target, and the focus position calibrated in the molybdenum target detection can be directly subjected to ultrasonic detection in the ultrasonic detection, so that accurate positioning is provided for further real-time ultrasonic needle biopsy; and the coincidence rate of ultrasound and molybdenum target diagnosis is greatly improved.

The invention provides a magnetic control capsule endoscope robot with a puncture biopsy taking function. Comprising a biopsy puncture needle module located at the front end, a capsule shell module, a fixing leg located at the tail end, a waterproof plug, a cam, a height-variable rotating ring device, an internal magnet, a camera module, a positioning pin, a positioning pin, a spring, a rotating table device and an external magnet. A traditional enteroscopy mode is replaced, and the workload of enteroscopy doctors and the pain degree of patient examination are reduced.

The CT-guided needle biopsy body surface calibrator comprises a calibration ruler and a catheter, the calibration ruler comprises two supporting strips which are arranged in parallel and are made of plastic materials, and a plurality of metal rods which are arranged between the two supporting strips at equal intervals; wherein the middle part of one or more metal rods is movably connected with an angle regulator, and the catheter is arranged on the angle regulator and is used for guiding the puncture needle. According to the puncture calibrator, the smoothness and success rate of puncture operation can be improved, the calibrator can be repeatedly used, the equipment cost is lower, and the puncture calibrator is worthy of being vigorously popularized.

The present invention relates to a gastroenterology ultrasonic endoscopic puncture biopsy needle, comprising a needle tip and a needle body. The needle body adopts a hollow cylindrical structure, with an open slot provided at the front end of the needle body, and side blades provided on the two axial surfaces of the open slot. The needle tip is composed of three or four pointed bodies, with a concave arc-shaped leading edge provided between each two adjacent pointed bodies. The open end of the open slot is located between two of the pointed bodies, and there is no leading edge between the two pointed bodies. The base of each pointed body has a micro-deformation structure. The puncture biopsy needle adopts a needle tip structure with micro-deformation, which can accommodate larger tissues and increase the friction force after the sampled tissue strip is squeezed, thereby achieving the purpose of successful one-time sampling.

The ultrasonic needle biopsy needle comprises a needle body and a needle head, the needle body is of a hollow cylinder structure, an opening groove is formed in the front end of the needle body, a positioning spine and a main blade are arranged at the end of the needle head, the main blade is provided with a first side blade inclining towards the periphery, and the first side blade is provided with a second side blade inclining towards the periphery. The distance between the positioning spine and the needle body is larger than that between the main blade and the needle body, the two circumferential ends of the main blade are each provided with an open groove, the two circumferential ends of the positioning spine and the two circumferential ends of the main blade are connected with the open grooves through slope blades, and therefore a large opening is formed between the two slope blades connected with the open grooves. According to the ultrasonic needle biopsy needle, the main blade is arranged at the end of the needle head, after the positioning spine is used for positioning tissue, the main blade and the slope blades on the two sides of the main blade can completely cut off the tissue, the cutting area occupies more than half of the area of the needle head, and one-time successful cutting can be achieved; and the cut tissue can enter the opening grooves in the two sides, the fixing effect is better, and the tissue is effectively prevented from falling off.

The utility model discloses an aspiration biopsy needle which comprises a handle, a biopsy needle head and an ultrasonic probe, and an assembly hole channel is formed in the handle. The biopsy needle head is connected with the handle and is inserted into the assembling hole channel; a central hole channel is formed in the biopsy needle in the axial direction; the central hole channel is communicated with the assembly hole channel to form a sampling channel; the ultrasonic probe is detachably arranged in the sampling channel and is used for extending to the front of the biopsy needle so as to observe the position to be sampled. By inserting the ultrasonic probe into the biopsy needle head for observation, the positioning precision of a position to be sampled can be improved, so that after the ultrasonic probe is taken out, accurate sampling can be performed, the sampling precision of the needle biopsy needle is improved, the sampling frequency is reduced, the assembly damage is reduced, and the safety of an operation is improved.

The invention discloses a multifunctional needle biopsy and local dosing device which comprises a handle used for being held, a telescopic body capable of being pushed and pulled is arranged in the handle, a medicine storage cavity is formed in the telescopic body, the bottom of the medicine storage cavity is communicated with an injection tube, and the top of the medicine storage cavity is connected with a puncture tube arranged in a needle tube. A tube body of the puncture tube is provided with a multi-directional injection hole, and the puncture tube is attached to a needle body in the needle tube. The device has good penetrability for lesion minimally invasive puncture and drug injection, can directly reach a target area more easily, and can be shrunk due to the adoption of a memory alloy material; the multi-direction puncture needle extends out of the needle tube, the function of medicine infusion is achieved, damage to the needle tip head is reduced, the problem that medicine cannot completely cover a medicine administration area clinically is solved, an indwelling tube is additionally arranged, repeated puncture is not needed, and the application range includes but is not limited to tumor medicine administration and medicine administration in other fields. Such as intracavitary administration, intracavitary administration, intracavitary administration and intracavitary administration in other tissues.