56 results about "Surgical failure" patented technology

The invention provides a valve leaflet lengthening device which comprises a conveying catheter, a first clamping arm, a second clamping arm, an opening and closing rod and a locking assembly, the first clamping arm is fixedly arranged at the far end of the conveying catheter, and the second clamping arm is rotationally connected to the near end of the first clamping arm; the opening and closing rod is connected to the near end of the second clamping arm and used for opening or closing the second clamping arm; the locking assembly comprises a blocking piece and a push rod connected with the blocking piece. The push rod is used for driving the blocking piece to move to prevent the second clamping arm from being opened. According to the valve leaflet extension device, the opening and closing rod and the locking assembly are arranged, so that the push rod drives the blocking piece to move so as to prevent the second clamping arm from being opened, and the technical problem that the second clamping arm is expanded and cocked up in the puncture process, and consequently an operation fails is solved.

The application provides a meniscus suture system and a method for using the same, which comprises a puncture needle assembly, a depth adjusting part and a pushing assembly; the puncture needle assembly comprises a puncture needle and a puncture needle outer tube, an outer wall of the puncture needle outer tube is provided with a depth limiting protrusion; the depth adjusting part comprises a depth limiting sleeve and a depth limiting groove, the puncture needle is movably penetrated through the depth limiting sleeve, the depth limiting groove is arranged on an inner wall of a tail end of the depth limiting sleeve, and the depth limiting protrusion is clamped into the depth limiting groove to limit the penetration depth of the puncture needle; the pushing assembly comprises a push rod, the push rod moves in the puncture needle to push the implant out of the puncture needle. The application can quickly and accurately adjust the penetration depth of the puncture needle into the meniscus, effectively prevents the meniscus from being injured due to the too large penetration depth of the puncture needle, or causes the operation to fail due to the fact that the puncture needle does not reach the target position at all, and does not have the problems of inaccurate clamping and easy displacement.

Methods and systems for evaluating the biomechanical properties of a subject's spine for the purpose of optimizing a potential surgical intervention by selecting or designing surgical hardware for a spinal correction procedure. The system uses a simulated dynamic analysis configured to analyze, predict and improve the outcome of the surgical procedure by taking into account physiological, biomechanical, and anatomical factors. Machine learning algorithms use the computed distribution of forces and moments on the subject's spine, and compare the subject's results with those of patients from a reference population. By analyzing the biomechanical parameters of individuals in the reference population and distinguishing those whose procedure succeeded versus those whose procedure failed, and comparing their biomechanical parameters to these of the individual under evaluation for a spinal surgery, the method is able to predict the chances for a successful surgery, recommend an optimal procedure and / or the optimal implant(s) configuration.

The invention discloses a suture locking unit, a knotter and a system. In the suture locking unit, a rigid first extrusion arm is rotatably connected with a mounting pipe along a rotating axis perpendicular to the axial direction of the mounting pipe, so that the first extrusion arm has better structural strength, is not easy to deform, and can keep the precision after being repeatedly used; an elastic second extrusion arm is connected with the first extrusion arm at the position close to the rotating axis, and the second extrusion arm reversely crosses the rotating axis after extending by a certain distance in the direction away from the first direction, so that the second extrusion arm is prolonged, and only small elastic deformation generated by the second extrusion arm exists; the extrusion piece is arranged on the first extrusion arm, so that irreversible elastic deformation of the second extrusion arm is avoided, the second extrusion arm is helped to reset to drive the first extrusion arm to reset, the extrusion piece can be repeatedly used to effectively extrude different locking rings, and the extruded locking rings can effectively lock penetrating sutures. The problem of operation failure caused by separation of the suture from the lock ring is avoided.

The utility model relates to the field of medical instruments, and provides a puncture synchronous dilator which comprises an inner dilation tube, a plurality of outer dilation tubes, a tearable sheathing canal and a Y valve, the inner dilation tube is provided with an inlet end and an outlet end, the outer dilation tubes are sequentially arranged on the outer surface of the inner dilation tube, and the tearable sheathing canal is arranged on the outer surface of the outer dilation tube on the outermost layer. And the Y valve is detachably mounted at the inlet end. The multiple outer expansion pipes are sequentially arranged on the outer surface of the inner expansion pipe, the inner expansion pipe is firstly inserted into the preset position, then the preset position can be gradually expanded only by sequentially moving the outer expansion pipes with different diameters until the requirement is met, dilators with different diameters do not need to be replaced in the process, and the expansion efficiency is improved. Therefore, the guide wire can be prevented from falling off, and the risk of operation failure is reduced.

The application relates to the technical field of medical devices, in particular to a punching positioner, which comprises a handle and a positioning head, the handle comprises a connecting end and a holding end, the holding end provides a gripping position; the positioning head is connected with the connecting end, a drill bit positioning hole is arranged on the positioning head, and an anti-skid pattern is arranged at the end face of the positioning head which abuts against the part to be punched. In the application, the design of the anti-skid pattern can increase the friction between the positioning head and the part to be drilled of the patient, improve the stability of the positioning drill bit, and reduce the risk of slipping. This helps to avoid surgical complications such as coracoid fracture, thereby reducing the risk of surgical failure.

The application provides a valve leaflet extension device, which comprises a delivery catheter, a first clamping arm, a second clamping arm, an opening and closing rod and a locking assembly, the first clamping arm is fixedly arranged at the distal end of the delivery catheter, the second clamping arm is rotationally connected to the proximal end of the first clamping arm, the opening and closing rod is connected to the proximal end of the second clamping arm and is used for opening or closing the second clamping arm, and the locking assembly comprises a blocking piece and a push rod connected with the blocking piece, and the push rod is used for driving the blocking piece to move to block the opening of the second clamping arm. The valve leaflet extension device of the application is provided with the opening and closing rod and the locking assembly, the push rod drives the blocking piece to move to block the opening of the second clamping arm, and the technical problem that the second clamping arm is pried up and tilted during the puncture process and causes the failure of the operation is solved.

The utility model relates to an anti-slip integrated balloon dilatation instrument which comprises a catheter and a balloon fixedly arranged on the catheter, particularly, the balloon comprises a dilatation section and anti-slip sections arranged at the two ends of the dilatation section, and the anti-slip sections are arranged at the two ends of the dilatation section through additional balloon shoulder structures arranged at the two ends of the balloon. The balloon can be prevented from sliding and displacing with the mucous membrane on the inner wall of the esophagus in the dilation process, so that the dilation curative effect is improved, the operation failure risk is effectively reduced, and the physical output of an operator in the operation is reduced.

The utility model discloses a guiding device. The guiding device comprises a supporting body, a guider and a locking assembly. Wherein a guide channel is formed in the support main body, and the guide channel is configured to be coaxially arranged with a preformed hole of an intramedullary needle on a preset prosthesis when the support main body is mounted on the preset prosthesis. The guider is detachably arranged in the guide channel in a penetrating mode, a guide hole is formed in the guider, and the guide hole and the guide channel are coaxially arranged. The locking assembly is disposed on the support body, and the locking assembly is configured to lock the support body between a predetermined prosthesis and a human skeleton. The guiding device solves the problem that in the prior art, a screw used for locking the intramedullary needle and the femur cannot be accurately arranged in a reserved mounting hole of the intramedullary needle in a penetrating mode, and therefore a prosthesis replacement operation fails.

The utility model discloses a bone cement injection anchor, and relates to the technical field of medical auxiliary equipment. According to the utility model, through lifting of the positioning column, dismounting of the anchor nail is facilitated, and furthermore, under the action of the positioning column, the situation that the fixing plate and the anchor nail are not easy to pull out or fall off to cause failure of an operation can be avoided; by changing the position of the adjusting column in the positioning seat, the height positions of the sealing gasket and the piston in the medicine storage pipe can be changed, the bone cement storage amount in the medicine storage pipe can be controlled under the action of the sealing gasket, namely, the purpose of controlling the injection amount can be achieved, and after adjustment is completed, the fixing ring, the movable column and the piston at the lower end of the movable column move downwards firstly, and then the injection amount is controlled. The bone cement can be guided into the medicine storage tube through the medicine conveying tube by moving the bone cement upwards, the bone cement in the medicine storage tube can be discharged by moving the bone cement downwards after medicine guiding is completed, the bone cement in the medicine storage tube can be prevented from flowing out of the medicine conveying tube under the action of the one-way valve, and the medicine injection effect can be guaranteed.

The utility model discloses a self-locking screw plate system for an anterior cervical vertebral body advancement operation, which comprises a fixing plate, an advancement screw and a distraction screw, the fixing plate is connected with a vertebral body, and the fixing plate is provided with a screw fixing groove extending along the long end direction of the fixing plate; a locking groove is formed in the head of the forward screw, the locking groove is communicated with an internal thread, an instrument groove for an instrument to be inserted is further formed in the head of the forward screw, and the instrument groove is communicated with the outer end face of the head of the forward screw and the locking groove, so that when the forward screw penetrates through the screw fixing groove, the locking groove is communicated with the locking groove. The head of the screw is extruded and deformed to be clamped in the screw fixing groove; the opening screw is arranged in the locking groove in a threaded penetrating mode, and the head of the opening screw expands the head of the forward moving screw in an expanding mode. The ACAF screw can solve the problem that an existing ACAF operation fails due to the fact that the screw is loosened and disengaged.

Embodiments of the present application provide a method and apparatus for controlling a medical device, and a medical system. The method includes receiving a speech instruction from a sound pickup apparatus, inputting the speech instruction into a deep learning neural network, and, on the basis of the deep learning neural network, outputting an instruction for controlling the medical device, and controlling movement of the medical device according to the instruction. Therefore, by means of AI / ML-based speech control, the medical device can be accurately controlled without assistance of multiple people, which can reduce labor costs, improve efficiency, and reduce the risk of surgery failing.

The invention discloses a gastric bypass stent locking and releasing device and a stent locking and releasing system, and relates to the technical field of medical instruments. The gastric bypass stent locking and releasing device comprises a small releasing ball, a storage tube, an outer tube and a handle. The cylindrical end of the small release ball is inserted into the storage pipe, the end, away from the small release ball, of the storage pipe is connected with the outer pipe, and the outer pipe is connected with the handle. A locking mechanism arranged in the storage tube comprises an unlocking line and a fixing line which are mutually independent and separable, so that the time of surgical operation can be saved, and meanwhile, the risk of surgical failure caused by line breakage when the unlocking line is pulled out is avoided; the release ball is locked and unlocked through the improvement of different knots of the unlocking line and the fixing line; the phenomenon that the unlocking wire is difficult to draw out or cannot be drawn out due to winding, guide wire pressing and the like is avoided; through the use of the three-channel hose, the central channel is not occupied by the unlocking line any more, the implantation difficulty of the product is effectively reduced, the implantation smoothness and accuracy are improved, and stable and efficient operation is realized.

The utility model provides a full suture anchor implanter, relates to medical instrument technical field, the full suture anchor implanter mainly comprises handle mechanism and implant rod, handle mechanism comprises knob, limit cover and transmission component, knob is rotatingly connected with limit cover, one end of transmission component is provided on knob, the other end passes through limit cover, and the transmission component passes through the limit cover. According to the utility model, through the cooperation of the transmission assembly and the rotary handle, the rotary motion of the rotary handle is converted into the reciprocating motion of the transmission assembly along the axial direction of the limiting cover, so that a doctor only needs to rotate the rotary handle, and the operation is simple and convenient. Therefore, two operations of implanting the full-suture anchor by the implanting rod and pulling and deforming the full-suture anchor can be completed, the operation burden of a doctor is relieved, and meanwhile, the operation failure risk is reduced.

The utility model belongs to the technical field of medical equipment, particularly relates to an anterior cruciate ligament sounding ruler, and aims to solve the problem of high failure rate of an operation caused by inconvenience in accurate positioning of a bone tunnel position in the prior art, and provides the following scheme: the anterior cruciate ligament sounding ruler comprises a handle; one end of the metal rod is fixedly connected with the handle; the first scale line, the second scale line and the third scale line are all arranged on the outer side of the metal rod, the outer side of the handle is connected with an anti-skid pad, a first bending section is arranged on the metal rod, the angle of the first bending section is 160-170 degrees, a second bending section is arranged on the metal rod, the angle of the second bending section is 90 degrees, and the angle of the third bending section is 90 degrees. According to the bone tunnel positioner, a positioning point of a bone tunnel can be accurately found, then the bone tunnel is formed through the positioner, the bone tunnel positioner is simple in structure and convenient to use, the quality of the bone tunnel is improved, and the operation failure rate is greatly reduced.

The invention belongs to the field of carotid artery stenosis treatment instruments, and particularly relates to a structure-enhanced direct percutaneous puncture double-balloon plugging catheter capable of being used for blood backflow protection. Comprising a catheter base material and sacculus bodies distributed on the catheter base material, the sacculus bodies are used for blocking the external carotid artery and the common carotid artery after being filled, and a plurality of mutually-meshed surface gullies or non-corresponding surface gullies are formed between the contact surfaces of the catheter base material and the sacculus bodies. When the plugging catheter is used for percutaneous puncture, the friction force between the catheter base material and the balloon body can be increased. Direct percutaneous puncture of the double-balloon plugging catheter is achieved, a blood vessel sheath is not needed, the operation time is effectively shortened, wounds are reduced, the blood vessel closing failure risk is reduced, and the treatment safety is improved. The bonding force of the gully structure between the balloon and the catheter is remarkably enhanced through mechanical embedding or a rough surface, it is ensured that the shape of the balloon is stable in the puncture process, and operation failure caused by material deformation is avoided.

The utility model relates to the technical field of ovum retrieval needles, and particularly discloses a double-cavity ovum retrieval needle which comprises a puncture needle and a large handle, a flushing cavity channel and a negative pressure cavity channel are arranged in an inner cavity of the puncture needle, and the large handle is provided with the puncture needle. The large handle is further connected with a flushing catheter and a first negative pressure pipe, the end, close to the large handle, of the flushing catheter is communicated with the flushing cavity, and the end, close to the large handle, of the first negative pressure pipe is communicated with the negative pressure cavity. A test tube plug is arranged at one end, far away from the large handle, of the first negative-pressure tube and is connected with a second negative-pressure tube; a protruding arc part is arranged on one side of the large handle, and a plurality of grooves are formed in the other side of the large handle at intervals. The puncture needle is a blunt needle; the puncture needle is vertically arranged on the side, close to the groove, of the large handle. The problems that in the puncture process of a double-cavity ovum extraction needle, a handle is not easy to hold or the handle slips off from the hand, and then the risk of operation failure is caused are solved. The wound surface of the needle point of the puncture needle is too large, and pain of a patient is caused in the operation process.

The invention relates to the technical field of medical instruments, in particular to a developing plugging device assembly and an unfolding method. A developing occluder assembly comprising: a body; and the at least one developing wire strip is wound and fixed on the body. According to the developing plugging device assembly and the unfolding method, the problems that due to the fact that developing marking points are added to a plugging device, the marking points are dispersed, the form position of the plugging device in the releasing process cannot be accurately observed, and the operation failure risk exists are solved, and the developing plugging device assembly and the unfolding method are provided.

This utility model relates to the field of medical devices, specifically to an endoscopic bidirectional grasping forceps, comprising a sleeve and a forceps body. A sliding plate is mounted on the inner wall of the sleeve via a sliding fit. An adjusting rod is mounted on the upper surface of the sliding plate. A superior rod is symmetrically mounted on the bottom of the sliding plate via a pin. A pin is mounted on the bottom of the superior rod, and the forceps body is mounted on the bottom of the pin. A first slider is symmetrically mounted on the upper surface of the sleeve. A superior seat is mounted on the upper surface of the first slider via a sliding fit. A first collar is symmetrically mounted on the upper surface of the superior seat. A first spring rod is mounted on the inner end of the first collar and is inserted into the outer wall of the adjusting rod. A limiting plate is arranged inside the superior seat, and a connecting rod is mounted on the upper surface of the limiting plate. This utility model employs a first spring rod structure to ensure that the forceps head of the forceps body is in a closed state, preventing accidental opening of the forceps head during object removal and thus avoiding surgical failure, thereby improving surgical safety.

The invention relates to the technical field of medical instruments, and discloses a bone tunnel preparation device and a preparation method thereof.The bone tunnel preparation device comprises a fixing mechanism, a driving mechanism and a drill bit; one end of the fixing mechanism is connected with the treatment bed, and the other end is connected with the driving mechanism which is detachably connected with the drill bit; a tip part and a connecting part are arranged on the drill bit, the tip part is arranged at the drilling end of the drill bit, a twist blade is arranged at the drilling end of the drill bit, the diameter of the twist blade is larger than that of the tip part, and the connecting part is arranged away from the tip part and extends into the driving mechanism so that the driving mechanism can drive the drill bit and the tip part to rotate through the connecting part. The tip part is firstly drilled into a tibia or a femur, and then the twist blade starts to be drilled into the tibia or the femur under the fixation of the tip part, so that the twist blade is more stable during feeding, the technical problem that in the prior art, the punching center deviates from a planned bone tunnel, and consequently an operation fails is solved, and the technical effects that punching is more accurate, and the success probability of the operation is high are achieved.

The invention discloses a suture locking unit and a knotter. In the suture locking unit, a rigid first extrusion arm is rotatably connected with a mounting pipe along a rotating axis perpendicular to the axial direction of the mounting pipe, so that the first extrusion arm has better structural strength, is not easy to deform, and can keep the precision after being repeatedly used; an elastic second extrusion arm is connected with the first extrusion arm at the position close to the rotating axis, and the second extrusion arm reversely crosses the rotating axis after extending by a certain distance in the direction away from the first direction, so that the second extrusion arm is prolonged, and only small elastic deformation generated by the second extrusion arm exists; the extrusion piece is arranged on the first extrusion arm, so that irreversible elastic deformation of the second extrusion arm is avoided, the second extrusion arm is helped to reset to drive the first extrusion arm to reset, the extrusion piece can be repeatedly used to effectively extrude different locking rings, and the extruded locking rings can effectively lock penetrating sutures. The problem of operation failure caused by separation of the suture from the lock ring is avoided.

The present invention relates to an electric stent delivery system based on remote control, the electric stent delivery system based on remote control comprises a delivery device and a remote control device; the remote control device is composed of a control page and a control device; the delivery device comprises a guide head, an inner core, an outer sheath, a push rod, a wire release device, a wire cutting device, a valve stent traction line, a wire collection device, a push rod push device, an inner core push device, and a mounting seat; the control device comprises a main control board, a wire collection motor drive, a wire cutting motor drive, a push rod motor drive, and a power module. Its advantages are as follows: solving the problems of complex operation, low precision, and high failure rate of surgery in the current mitral valve replacement technology, effectively reducing patient trauma, reducing operator difficulty, improving the success rate of surgery, and reducing postoperative complications, being able to simplify the operation process, ensuring accurate positioning and accurate release of mitral valve implantation, and contributing to the development of mitral valve replacement technology.

A suture control device and a suturing device system, the suture control device includes: a suture and a thread pushing assembly. The end of the suture is used to insert into the puncture needle, and the suture located in the puncture needle is provided with an abutment joint. The thread pushing assembly includes a thread pushing wire, one end of which abuts against the abutment joint, and the other end of which is located outside the puncture needle, and the thread pushing wire is used to push the suture. The designed suture control device, through the cooperation of the thread pushing wire and manpower, can timely sense the progress of the thread pushing wire through manpower during the thread pushing process, so as to facilitate timely stopping, avoid continuing to push the thread forward when the thread pushing is not smooth, and avoid the occurrence of surgical failure caused by the accumulation or knotting of the suture in the puncture needle, thereby improving the accuracy and efficiency of thread pushing.

The bovine bone fusion cage driver with the positioning function comprises an outer sleeve and a fusion cage body, the right side of the outer sleeve is fixedly connected with a connecting cylinder, the bottom of the connecting cylinder is fixedly connected with a handle, the right side of the connecting cylinder is provided with a positioning mechanism, and the positioning mechanism is fixedly connected with the outer sleeve. The positioning mechanism comprises a rotating block, a first connecting rod, a second connecting rod, a circular block, a connecting block, a swinging block, a sliding groove, a moving block and an inserting rod, the fusion cage body is located in an inner cavity of the outer sleeve, and the fusion cage body is detachably connected with the outer sleeve through the positioning mechanism. According to the fusion cage, the fusion cage body can be conveniently fixed and positioned, the situation that the fusion cage body falls off or displaces in the using process, consequently, the operation effect is affected, or the operation fails due to displacement of the fusion cage body is prevented, and the success rate of the operation is increased.

The embodiment of the invention provides a driving method and device of medical equipment and a medical system. The method comprises the following steps: receiving a voice instruction from a sound pickup device; inputting the voice instruction into a deep learning neural network, and outputting a driving instruction for driving the medical equipment based on the deep learning neural network; and driving the action of the medical equipment according to the driving instruction. Therefore, through voice control based on AI / ML, driving of the medical equipment can be accurately realized without assistance of multiple persons, the labor cost can be reduced, the efficiency can be improved, and the risk of operation failure can be reduced.

The present application relates to surgical instruments and driving assemblies thereof, the driving assembly comprising an execution driving member, a transmission mechanism, a moving part, an auxiliary rotating part and an instrument box. The instrument box contains the transmission mechanism, the moving part and the auxiliary rotating part. The auxiliary rotating part is coaxially arranged with the moving part, and the auxiliary rotating part is rotatably connected with the moving part around the axis of the two. The execution driving member is used to drive the transmission mechanism to drive the moving part to move along the axial direction, so that the moving part drives the auxiliary rotating part to move along the axial direction. During the movement of the execution rod along the axial direction of the surgical instrument to drive the actuator to perform the surgical operation, even if the moving part rotates, it will not affect the rotation of the actuator, reducing the risk of surgical failure. When assembling the surgical instrument, even if the rotation shaft drives the execution rod to rotate, it will not affect the axial displacement of the moving part, avoiding the risk that the interface position of the execution rod used for docking with the actuator changes, causing the actuator to be difficult to accurately dock.

The present invention discloses a femoral stem bending adjustment device that can hold a variety of femoral stem bending shapes, and belongs to the technical field of medical devices. The present invention includes a bending body and a positioning mechanism, the positioning mechanism is installed on one side of the bending body, the positioning mechanism includes a limit support plate, a positioning pin, a pull rod and a spring, the limit support plate and the bending body are integrally formed, a positioning pin is movably installed on one side of the bending body through a snap, a pull rod is movably installed on one side of the bending body, the pull rod passes through the bending body and passes through the inside of the limit support plate, the positioning pin is located above the pull rod, the positioning pin and the pull rod are fixedly installed with a spring at one end close to the bending body, the spring is located inside the bending body, the shape of the middle part of the bending body is arc-shaped, and the arc-shaped structure is designed in accordance with ergonomics. The present invention effectively avoids the loosening of the femoral stem prosthesis during implantation, the implantation effect is better, and the risk of surgical failure is reduced.

A support device adapted to support a biological membrane, for example, for use as a regenerative membrane, the support device comprising a support strip in the form of a long strip extending in a length direction, the support strip including a circular arc surface extending in the length direction to support the biological membrane. The support strip supports the biological membrane by the smooth circular arc surface, and gum in the healing period prevents the support strip from being exposed to the bone area to cause surgical failure. The invention also provides a method of using the support device.

The invention provides spine minimally invasive soft and hard integrated endoscopic surgery equipment, and relates to the technical field of minimally invasive surgery equipment. The supporting frame body assembly comprises a second rotating rod, and the tail end of the second rotating rod is connected with an elbow auxiliary bearing piece by arranging a threaded rod. The elbow auxiliary bearing piece comprises a mounting plate and an elbow supporting plate, and a fixed clamping shaft is mounted in the elbow supporting plate; and the outer part of the fixed clamping shaft is sleeved with an adjusting piece. After the rotating rod is rotated, the position of the adjusting rotating shaft in the elbow supporting plate is adjusted, meanwhile, the friction force between the adjusting rotating shaft and the fixing clamping shaft is changed, a forearm is supported with certain strength, the hand stability of a surgeon during an operation can be improved, and the risk that the surgeon is prone to shaking due to fatigue after a long-time operation and consequently the operation fails is increased is avoided; the problems that after a long-time operation, a surgeon is prone to being tired and shaking hands, the operation risk is improved, the hands are difficult to bear with certain strength, and the operation risk is reduced are solved.

The present invention provides a biopsy needle device, which includes two cooperating handles, namely a first handle and a second handle respectively. The second handle can move relative to the first handle along the A direction, and a first positioning member is provided on the first handle, and a second positioning member for contacting the first positioning member is installed on the second handle. A limiting groove is provided on the second handle, and a plurality of adjusting grooves are sequentially and spaced apart along the A direction on the side wall of the limiting groove. The second positioning member includes an adjusting rotating shaft located in the limiting groove and an adjusting convex shaft provided at one end of the adjusting rotating shaft, and the adjusting convex shaft is embedded in one of the adjusting grooves. When using this biopsy needle device, it is more convenient to adjust the needle protruding length, and the positioning ability of the needle protruding length is stronger, avoiding the situation of positioning failure, thereby effectively reducing the risk of surgical failure.