35 results about "Puncture - action" patented technology

The invention provides a puncture positioning mechanism and a puncture surgical robot. The puncture positioning mechanism comprises a frame, a space motion unit connected with the frame, a puncture execution unit connected with the space motion unit, a blood vessel imaging unit connected with the puncture execution unit and an image acquisition unit arranged on the frame. Wherein the frame is used for supporting the space motion unit; the space motion unit is used for adjusting the positions of the puncture execution unit in three different directions; the puncture execution unit is used for adjusting the pitching angle and the deflection angle of the puncture execution unit and executing the puncture action. The blood vessel imaging unit is used for projecting blood vessels to the skin surface; the image acquisition unit is used for acquiring blood vessel images. All the units of the puncture positioning mechanism are tightly matched, a complete and efficient puncture positioning system is formed from blood vessel image acquisition, accurate position adjustment, visual guide and puncture action execution, and the accuracy and safety of puncture operation are remarkably improved.

The application belongs to the technical field of medical apparatus and specifically discloses an injection positioning device for endocrinology department, which comprises a mounting ring and a lifting injection ring for clamping an injection pen, the lifting injection ring can be lifted along a limiting column vertically arranged on the mounting ring, a first compression spring for driving the lifting injection ring to descend is arranged between the mounting ring and the lifting injection ring, a force storage engagement mechanism for locking the lifting injection ring at a force storage position, a three-point pressing parallel trigger mechanism for sensing the contact state with the skin surface and a torque release mechanism for releasing the force storage engagement mechanism according to the state of the three-point pressing parallel trigger mechanism are further included. The force storage release mechanism with the conditional locking and triggering functions is arranged, and the locking state is released only when the device is pressed to be close to the skin and the axis of the injection pen is perpendicular to the skin, so that the force storage mechanism is triggered to drive the injection pen to complete the puncture action, and the intradermal injection risk caused by the angle inclination is eliminated.

This invention relates to the field of tea withering technology, specifically to a withering machine equipped with a syringe piercing module. The machine comprises a belt conveyor, a syringe assembly, and a driver. The syringe assembly includes a cylinder rotatably mounted on a frame and several needle-piercing components. The belt conveyor is positioned below the syringe assembly, with a transport gap formed between the conveying surface of the belt conveyor and the outer circumferential surface of the cylinder for the tea leaves to pass through. The radial extension length of the needle-piercing components is less than the radial height of the transport gap. The driver is used to drive the syringe assembly to rotate around its own axis. This invention transforms the traditional intermittent reciprocating lifting and lowering piercing action into a continuous rotating piercing action of the needle-piercing components as the cylinder rolls. When the needle-piercing components rotate to the bottom and enter the transport gap, their direction of movement coincides with the movement direction of the belt conveyor's conveying surface, thereby enabling uninterrupted mechanical piercing of continuously passing tea leaves, achieving continuous operation and significantly improving tea withering efficiency.

This invention discloses a puncture device, comprising a puncture cone and a puncture body. The puncture cone includes a puncture rod, a puncture blade, and a puncture blade sheath. The puncture blade is located at the tip of the puncture cone and is connected to the puncture rod. The puncture blade and the puncture rod are located within the sheath. The puncture body includes an electric motor, a power conversion component, and a first proximity switch. At least one trigger structure is provided at the proximal end of the puncture blade sheath. When the trigger structure moves to a specific position of the first proximity switch, the first proximity switch closes, the electric motor starts, and the power conversion component pushes the puncture rod to perform a puncture action. When the trigger structure leaves the specific position of the first proximity switch, the first proximity switch opens, the electric motor stops working, and the puncture rod stops its puncture action. This invention's puncture device uses an electric motor to complete the puncture action, reducing operator effort, improving feel, lowering surgical risks, and increasing operational efficiency.

A fine puncture needle with a needle core rebound controlled by one hand comprises a brake release limiter, a pressure rod, a needle core, a support spring and a needle sheath. The brake release limiter is provided with a pressure rod jack and a needle core jack, the brake release limiter is provided with a component installation space, the lower end of the pressure rod is provided with a limit seat, the limit seat is located in the component installation space, the needle sheath is installed at the bottom of the brake release limiter, the upper end of the needle core is connected to the limit seat, the support spring is sleeved on the needle core, the upper end of the support spring abuts against the limit seat, the lower end of the support spring abuts against the brake release limiter, a limit seat clamp is provided on the side wall of the component installation space, and pull rings are provided on both sides of the brake release limiter. The pull ring can drive the limit seat clamp on the brake release limiter to move, thereby preventing tissue cells with no diagnostic value from entering the needle sheath before reaching the target, and after reaching the target, allowing cells with diagnostic value to enter the front end of the needle sheath through puncture action.

The application provides a steam treatment device, comprising a driving unit, a steam delivery unit, a marking liquid delivery unit and a steam needle; the driving unit is used for driving the steam needle to perform puncture and retraction actions; the steam delivery unit communicates with a relay channel through a steam pipeline; the marking liquid delivery unit communicates with the relay channel through a marking liquid pipeline; when the puncture action of the steam needle is controlled, steam in the steam delivery unit enters a working channel to perform a surgical operation; when the retraction action of the steam needle is controlled, marking liquid in the marking liquid delivery unit enters the working channel to perform a marking operation. Accordingly, the puncture point can be marked in time, and the surgical efficiency is improved.

The utility model provides a puncture needle fatigue tester, and the tester comprises a pedestal which is provided with an operation screen; the mechanical arm is fixedly installed on the base and comprises a sliding block used for driving the puncture needle to ascend and descend in a reciprocating mode. The puncture needle is mounted on the sliding block; the conveying mechanism is located below the sliding block, comprises a driving roller and is used for conveying the adhesive tape; the conveying direction of the driving roller is perpendicular to the lifting direction of the puncture needle; the control module is located in the operation screen and comprises a PLC electrically connected with the operation screen. The PLC is further electrically connected with the mechanical arm and the conveying mechanism and used for controlling driving of the sliding blocks and the driving rollers. The puncture needle is mounted on the sliding block, so that the reciprocating lifting action of the sliding block can be effectively utilized to realize the puncture action of the puncture needle; the conveying mechanism can automatically convey the adhesive tape to the position below the puncture needle, and then a real puncture environment is simulated; meanwhile, the conveying mechanism can convey and change positions of the adhesive tape after puncture is completed, so that each puncture of the puncture needle is real puncture, and the test accuracy is effectively ensured.

The application discloses a sewing device, comprising a main frame, a first moving mechanism, a locking mechanism, a second moving mechanism, a taking-out mechanism and a linkage mechanism. In the application, through cooperation of the mechanisms, workpiece movement and a puncture action of the sewing machine are formed to be coherent, movement during needle puncture is prevented, the puncture needle is prevented from being broken, and the efficiency problem caused by manual sewing is solved.

The invention discloses a transmission wire clamping type needle withdrawing driving device which comprises a driving assembly and at least one clamping assembly, the driving assembly is used for providing pushing driving force, each clamping assembly corresponds to one transmission wire, and the tail end of each transmission wire is connected with a function execution assembly capable of regulating and controlling the depth of a puncture instrument in organism tissue. The function execution assembly drives the puncture instrument to move unidirectionally or reciprocate, so that the depth of the puncture instrument in the organism tissue is regulated and controlled. The clamping assembly is directly connected with the driving assembly or is in indirect transmission connection with the driving assembly through the transmission assembly. Under the driving of the driving assembly, the clamping assembly can clamp the transmission wire and move along the linear track, so that the front-back movement of the transmission wire is realized, and the function execution assembly is driven to act. The clamping piece can accurately drive the transmission wire, so that the function execution assembly is accurately controlled, the needle withdrawing or puncturing action is achieved, and the operation efficiency is effectively improved.

The invention belongs to the field of temperature measurement of cigarette filter sticks, and relates to a method and a system for measuring the temperature of a filter stick in a multi-directional controllable puncture sealing manner. According to the system, real-time, multi-directional and position-controllable measurement of the temperature of the filter stick can be realized through the radial puncture measurement module in the suction process. The system comprises three sets of mutually independent puncture measurement sensor devices, and each set of sensor system comprises a force feedback unit used for monitoring the resistance in the puncture process in real time and generating a feedback signal, and a puncture execution unit configured to execute the puncture action in the radial direction perpendicular to the axial lead of the cigarette, the temperature detection unit is used for measuring the temperature of smoke in the cigarette after puncturing, the position control unit is used for independently setting the puncturing position and independently setting the puncturing depth and the withdrawing distance, and the automatic sealing unit is used for automatically sealing a puncturing channel after puncturing is completed so as to prevent smoke leakage. According to the method, high-precision and repeatable radial temperature distribution measurement can be realized through multi-directional independent control of puncture parameters and automatic sealing design.

The present application relates to the technical field of vapor ablation, and provides a flexible puncture structure and a vapor ablation system, the flexible puncture structure comprising a rear-end elastic tube, a distal end head, a puncture needle and a screw rod, the distal end head being connected with the rear-end elastic tube to form a cavity channel, the distal end head being provided with an extension hole communicating with the cavity channel; the puncture needle being movably arranged in the cavity channel, the puncture needle being provided with a vapor channel; the screw rod comprising a driving section and a bending section connected with each other, at least part of the screw rod being arranged in the cavity channel and being arranged in parallel with the puncture needle, the driving section being connected with the puncture needle through a connecting piece, the screw rod being rotated to move the connecting piece, thereby driving the puncture needle to extend out of the extension hole or to retreat into the cavity channel, the bending section being capable of bending and deforming. The screw rod is rotated to drive the connecting piece to slide along the distal end head, thereby making the puncture needle extend out of the extension hole or retract, and completing a puncture action. The rear-end elastic tube and the bending section of the screw rod are suitable for bending and deforming, have high bending capacity, can easily reach a deep part of a human body, and thus flexible transmission puncture is realized.

The invention discloses a compact carbon fiber fabric single-thread sewing robot capable of inhibiting sewing thread abrasion, which comprises a clamping device, a sewing needle puncture manipulator, an upper end thread pulling mechanism, a lower end thread pulling mechanism, a steel cylinder insertion mechanism and the like, and is characterized in that the clamping device is used for fixing a plurality of layers of stacked carbon fiber fabrics; the two suture needle puncture mechanisms are arranged on the two sides of the clamping device respectively and used for simulating the puncture action of a suture needle in the manual suture process. The upper end thread pulling mechanism and the lower end thread pulling mechanism are both arranged on one side of the clamping device to reduce the size of the device and used for simulating the pulling-out traction action of a suture after puncture of a suture needle in the manual suture process; the steel cylinder inserting mechanism is used for inserting a steel cylinder into the carbon fiber fabric and then controlling a sewing needle to puncture, so that a sewing thread is pulled on the smooth inner wall of the steel cylinder, and abrasion caused by mutual friction between the sewing thread and the carbon fiber fabric is avoided; by means of the steel cylinder inserting mechanism, abrasion of the stitches and the carbon fiber fabric is avoided, and the original strength of the stitches and the carbon fiber fabric is guaranteed.

The invention belongs to the technical field of eye surgical instruments, and particularly relates to a surgical puncture knife capable of pumping and injecting intraocular fluid. Comprising a puncture tool bit, a grab handle and an air pump, and the bottom of the puncture tool bit is fixedly connected with the top end of the grab handle; one end of the hole channel is located at the position of the tool bit area, and the other end of the hole channel is located at the bottom of the puncture tool bit; an opening in one end of the flow channel is formed in the top end face of the grab handle and is in butt joint with the through hole channel of the puncture tool bit; an opening at the other end of the runner is formed in the side wall or the bottom end of the grab handle; the other end of the runner is connected with an air pump through a pipeline; the air pump can rotate forwards and backwards to perform liquid pumping and liquid injection operations. The disposable intramedullary nail has the advantages that the disposable intramedullary nail is simple in structure and convenient to operate, liquid suction / liquid injection can be directly performed after one-time puncture action, an extra liquid tube does not need to be inserted into a wound after the tool bit is pulled out, wound expansion is prevented, and surgical risks caused by secondary insertion into an eyeball are reduced.

The invention provides a master manipulator structure for a puncture robot and a master-slave type surgical robot auxiliary puncture system, belongs to the technical field of medical instruments, and is particularly used for operating a slave manipulator robot at the far end to execute surgical actions. Comprising a rack, a posture adjusting mechanism, a needle inserting mechanism, a force feedback mechanism, a first position detection assembly and a second position detection assembly. The force feedback mechanism is connected with the linear moving part and used for transmitting force to the linear moving part according to the puncture action of the slave hand robot at the far end. Through the main manipulator structure, an operator can control the slave manipulator robot to complete an operation action outside the CT room, and the operator is prevented from being exposed in a radiation environment for a long time; the force feedback mechanism is connected with the linear moving part, when an operator operates the puncture needle rod to do reciprocating linear movement, the force feedback mechanism can provide force for the linear moving part so as to simulate the resistance of the tissue when the puncture needle pierces into the human tissue, a real operation scene is simulated as much as possible, and the operation experience of the operator is improved.

The present application is a visual puncture needle system with protection function, which comprises a puncture needle tube, a tube body for human body puncture; a needle tube connector connected to the rear end of the puncture needle tube for the operator to hold; an image acquisition mechanism connected to the needle tube connector; and a bounce core mechanism connected to the needle tube connector. Compared with the prior art, the present application has the beneficial effects of: the simultaneous combination of the image acquisition mechanism and the bounce core mechanism; the bounce core mechanism can ensure that the operator can timely understand the puncture situation during the puncture process, and stop the puncture action in time after completing the puncture to avoid injuring other tissues; the image acquisition mechanism can real-time understand the situation in the patient's body, and double guarantee improves the safety of the operation.

This invention relates to the field of surgical instruments, and particularly to a pneumoperitoneum needle for laparoscopic surgery and its control method. The pneumoperitoneum needle and its control method provided by this invention, during the puncture phase, activate the electromagnet cylinder for forward operation. The electromagnet cylinder drives the puncture needle tube forward and the inner core backward, ensuring the inner core does not obstruct the puncture needle's insertion. After puncture, the resistance to the puncture needle tube decreases, the pressure sensor's data increases, and the control unit activates the electromagnet cylinder for reverse operation. The electromagnet cylinder drives the puncture needle tube backward and the inner core forward, causing the puncture needle tube to retract instantly and the inner core to extend out, avoiding damage to organs. This method is rapid and efficient, while the interaction between the puncture needle tube and the inner core creates redundancy. When the control unit or the electromagnet cylinder fails to operate, the elastic element can control the inner core in a conventional manner, ensuring a safe puncture process for the pneumoperitoneum needle in laparoscopic surgery.

The invention provides a steam treatment device. The steam treatment device comprises a driving unit, a steam conveying unit, a marking liquid conveying unit and a steam needle. The driving unit is used for driving the steam needle to execute puncturing and retracting actions; the steam conveying unit is communicated with the relay channel through a steam pipeline; the marking liquid conveying unit is communicated with the relay channel through a marking liquid pipeline; when the steam needle is controlled to execute the puncture action, steam in the steam conveying unit enters the operation channel to perform the surgical operation; and when the steam needle is controlled to execute retraction action, marking liquid in the marking liquid conveying unit enters the operation channel for marking operation. Therefore, the puncture point can be marked in time, and the operation efficiency is improved.

The invention discloses a sample processing system, which is characterized in that a control device responds to an acquired redissolution instruction, and controls a pipetting needle to execute a first puncture action and a redissolution solution separate injection action on one of at least two standard sample containers loaded with a freeze-dried standard sample or a freeze-dried reagent; the pipetting needle is controlled to be separated from the standard sample container completing the reconstitution fluid separate injection action, and the cleaning device is controlled to execute a cleaning action on the pipetting needle completing the reconstitution fluid separate injection action; the pipetting needle can execute a first puncture action and a reconstitution fluid separate injection action on the other standard sample container in the at least two standard sample containers loaded with the freeze-drying standard sample or the freeze-drying reagent, so that the volume of the reconstitution fluid injected into the standard sample container by the pipetting needle is accurately controlled, and the pipetting needle can be repeatedly used; frequent replacement is not needed, and the measurement cost of the liquid standard sample of the sample treatment system is reduced.

The present application discloses an inhaler, which comprises a shell provided with a suction nozzle, a receiving member provided with a capsule compartment and a puncture needle slidably connected to the receiving member, the puncture needle is also connected to the receiving member through an elastic member, and the puncture needle has a matching portion and a puncturing end; a working portion is provided inside the shell, the receiving member can enter and exit the shell along a first direction, the working portion and / or the matching portion are provided with a working surface, the working surface comprises a first sub-surface, and the first sub-surface gradually approaches a movement path of the capsule compartment along a direction of entering the shell in the first direction; when the receiving member enters the shell and the matching portion passes through the working portion, the matching portion abutting against the working portion generates a displacement close to the capsule compartment through the first sub-surface, the puncturing end performs a puncturing action, and the elastic member undergoes elastic deformation; in the process of the matching portion leaving the working portion, the matching portion can generate a displacement away from the movement path of the capsule compartment under the elastic force of the elastic member, and the puncturing end performs a resetting action. When filling the capsule, the present application can perform a puncturing operation on the capsule, which is relatively convenient.

Provided are an automatic analysis device capable of performing a specimen dispensing (CTS) action of a stoppered specimen container under appropriate piercing conditions corresponding to the category of the stoppered specimen container, and a piercing condition selection method thereof. The automatic analysis device (1) of the present invention includes: a rack identification information reading section (84) that reads rack identification information (C) imparted to a specimen rack (70); a CTS drive section (80) that performs a piercing action of piercing a stopper of a stoppered specimen container at a specimen suction position by a piercer, and sucks a specimen in the stoppered specimen container using a specimen suction nozzle that passes through a hole formed by the piercing by the piercer; a piercing condition setting section (82) that sets a piercing action condition of the piercer for the stoppered specimen container loaded in the specimen rack (70) based on the rack identification information (C) read by the rack identification information reading section (84); and a control unit (10) that controls the action of the CTS drive section (80) based on the set piercing action condition.

The invention discloses a remote control system with high accuracy in the fundus blood vessel puncture process. The remote control system comprises a 5G communication module, and a main hand control device comprises a main hand execution structure; the execution robot device comprises a puncture execution structure and a motion control module, and the motion control module comprises an SCARA mechanism and an RCM mechanism. Extracting action information of the master manipulator execution structure; the action information is put into a communication protocol, which is formulated in advance, of a 5G communication module, is converted into frame data containing position information, a serial number and an error checksum, and is transmitted to the execution robot device by utilizing the 5G CPE equipment; the execution robot device converts the frame data into action information of the execution robot device, and the action information of the execution robot device is converted into data of the rotation direction, the rotation speed and the rotation distance of each motor to control the motors to work; the system accurately drives the injection needle to reach the accurate position in a low-delay mode, the accurate angle and the accurate orientation of the needle point of the injection needle are maintained, and the puncture action is executed.

The invention relates to the technical field of medical instruments, and discloses a wearable puncture device which comprises a supporting body. A plurality of first through grooves are formed in the needle bin, and the first driving part drives the needle bin to rotate along the axis, so that any one of the first through grooves can selectively rotate to a puncture station; the first driving part drives the needle bin to rotate, the second driving part drives the medicine feeding connector to ascend and descend so that the medicine feeding connector can be in butt joint with the needle head located on the puncture station and then drive the needle head to execute the puncture action, and the residual liquid treatment unit receives residual liquid on the punctured needle head. The second driving part drives the dosing connector to be in butt joint with the needle head and execute puncture dosing, the residual liquid treatment unit prevents liquid medicine from polluting the interior of the device, full-process automation of multiple dosing, automatic needle replacement, precise puncture dosing and residual liquid treatment is achieved, the operation complexity and the cross infection risk are effectively reduced, and the operation efficiency is improved. And the use requirement of continuous treatment is met.

This invention provides a puncture positioning mechanism and a puncture surgical robot. The puncture positioning mechanism includes: a frame, a spatial motion unit connected to the frame, a puncture execution unit connected to the spatial motion unit, a vascular imaging unit connected to the puncture execution unit, and an image acquisition unit mounted on the frame. The frame supports the spatial motion unit; the spatial motion unit adjusts the position of the puncture execution unit in three different directions; the puncture execution unit adjusts its pitch and yaw angles and performs the puncture action; the vascular imaging unit projects blood vessels onto the skin surface; and the image acquisition unit acquires vascular images. The various units of the puncture positioning mechanism work closely together, from acquiring vascular images and precisely adjusting their positions to providing visual guidance and executing the puncture action, forming a complete and efficient puncture positioning system that significantly improves the accuracy and safety of puncture operations.

The invention relates to the technical field of injection molding equipment, and discloses a tire puncture injection backfill repair device which comprises a rack, a positioning seat is fixedly mounted on the bottom wall of the rack, a puncture glue injection mechanism is assembled on the top wall of the rack, and two sets of lateral clamping mechanisms in mirror symmetry are arranged on the left side and the right side of the rack; a linkage lifting mechanism is assembled on the top wall and on the rear side of the puncture glue injection mechanism, and a lining supporting mechanism is assembled below the linkage lifting mechanism; the linkage sliding rod is driven by the main driving device to accurately move downwards along the guide stand column, and the composite injection part and the puncture head are synchronously linked to complete the puncture action; the guide head is matched with the inclined surface of the inclined guide groove to realize automatic centering and clamping of the lateral clamping mechanism, so that the clamping blocks are stably attached to the two sides of the tire; by means of a transmission mechanism of a transmission rack and a reversing gear, the lining supporting mechanism moves reversely, and it is ensured that a liner groove is tightly attached to the inner wall of the tread; finally, collaborative operation of puncture positioning of the puncture head and double-side clamping of the clamping block is achieved, and the operation efficiency of tire repairing is remarkably improved.

The application discloses a puncture device. The puncture device comprises a puncture member, an operating handle, a shooting mechanism and a trigger member, the shooting mechanism is movably arranged on the handle shell, the puncture member is fixedly connected to the shooting mechanism and penetrates the handle shell, and the trigger member is movably arranged on the handle shell. When an external force is applied to the trigger member, the shooting mechanism can release potential energy and drive the puncture member to quickly advance, thereby completing the puncture action. In the above manner, the puncture device can more accurately control the puncture strength and speed, avoids excessive puncture and reduces the risk of tissue damage, and greatly improves the safety, accuracy and efficiency of the puncture operation.

This invention discloses an epidural anesthesia puncture device for use in pain management departments, relating to the field of epidural anesthesia puncture technology. It includes a puncture needle feeding mechanism, a puncture needle, a feed column anti-reverse assembly, and a puncture stop mechanism. The puncture needle feeding mechanism comprises a frame and a hexagonal hollow feed column. A first sliding sleeve is located on the left side of the frame, and a second sliding sleeve is located on the right side. The hexagonal hollow feed column is laterally slidably connected to the first and second sliding sleeves. The lower right end of the frame is connected to the top of a fixing handle via a mounting plate. A protrusion is connected to the top of the fixing handle. A feed control assembly is installed in the lower right corner of the frame. This epidural anesthesia puncture device for pain management departments employs multiple short-distance punctures, avoiding the risk of excessive puncture due to the inertia of manual puncture by the anesthesiologist. Once the puncture is in place, the hexagonal hollow feed column can be quickly locked, stopping the puncture needle's movement and preventing excessive puncture damage to the dura mater, thus ensuring high safety.

The utility model discloses a large storage volume tattooing integrated needle and a tattooing device, the tattooing integrated needle comprises a needle shell, the front end part of the needle shell is a sharp mouth part, the middle part of the needle shell forms an ink storage cavity, the peripheral surface of the needle shell is provided with a middle opening, and the rear end of the needle shell is open; the rear cover covers the opening in the rear end of the needle shell; the needle wire is mounted in the needle shell and can extend out of the mouth part of the needle shell; the rear end part of the transmission part penetrates through the rear cover, the front end part of the transmission part is fixedly connected with the needle wire, and the driving motor drives the transmission part to reciprocate so as to drive the needle wire to reciprocate to complete the puncturing action; the one-way valve is arranged on the middle opening; the transmission part or the needle wire is sleeved with the spring leather sheath, and the spring leather sheath is attached to the inner side wall of the needle shell in a sealed mode. According to the tattooing integrated needle, more ink storage amount is provided, the frequency of drawing by dipping ink is reduced, the working efficiency is improved, and more energy is put on drawing; and meanwhile, secondary line drawing on the skin is reduced, such as damage caused by ink light and line lightening.

The application discloses a multifunctional puncture positioning and fixing device for liver tissue radiofrequency ablation, and relates to the technical field of medical devices.The device comprises a belt, a positioning assembly for fixing effect, and a puncture assembly for puncture action.The two sides of the belt are provided with side belts, and the top end of the belt is provided with an abdominal belt.The two ends of the belt and the abdominal belt are both provided with elastic ropes, and the two elastic ropes are both provided with the side belts at corresponding positions.The surface of the abdominal belt is provided with a window.The application effectively reduces the respiratory displacement of liver tissue by setting a winding mechanism, supports independent and fine adjustment of the puncture point and the puncture angle by setting a distance adjusting mechanism, accurately controls the puncture depth of the needle tip by setting the puncture assembly, and realizes flexible mechanical interlocking between the needle body and the liver tissue after reaching the target position, further limits the respiratory displacement amplitude of the liver tissue, and thus guarantees the complete form of the ablation zone.

The present application relates to the field of rotary biopsy apparatus, in particular to a hand-adjusted depth rotary biopsy sampler, comprising a shell, a fixed rear blocking piece and an adjustable front blocking piece arranged inside the shell; an upper string slider connects the outer needle sleeve to slide between the front blocking piece and the rear blocking piece, thereby defining the puncture depth; an upper string rotor connects the inner needle, is rotatably installed in the upper string slider and is driven by a trigger coil spring; the front blocking piece is provided with a locking slot with an open end, and the upper string rotor is provided with a locking trigger; when the upper string slider moves, the locking trigger is limited by the locking slot to prevent the inner needle from rotating, and when the upper string slider hits the front blocking piece, the locking trigger slides out of the open end to release the rotor to drive the inner needle to rotate. In the present application, no matter the puncture depth, the impact stop of the outer needle sleeve and the release rotation of the inner needle always occur at the same time, so that the rotary sampling action is always automatically triggered at the same time when the linear puncture action ends while adjusting the puncture depth.

The invention relates to the field of surgical instruments, in particular to a pneumoperitoneum needle for laparoscopic surgery and a control method of the pneumoperitoneum needle. According to the pneumoperitoneum needle for the laparoscopic surgery and the control method of the pneumoperitoneum needle, in the puncture stage, the control part starts the electromagnet barrel to work in the forward direction, the electromagnet barrel drives the puncture needle tube forwards and drives the inner core part backwards, and the inner core part cannot block the puncture action of the puncture needle tube; after puncture is completed, resistance borne by the puncture needle tube is reduced, sensing data of the pressure sensor is increased, the control part starts the electromagnet barrel to work reversely, the electromagnet barrel drives the puncture needle tube backwards and drives the inner core part forwards, the puncture needle tube is withdrawn instantly, the inner core part stretches out of the puncture needle tube, and harm to visceral organs is avoided; meanwhile, the puncture needle tube and the inner core part act mutually to form redundancy; when the control part or the electromagnet cylinder cannot work, the elastic piece can control the inner core part in a traditional mode, and it is guaranteed that the pneumoperitoneum needle for the laparoscopic surgery can complete the safe puncture process.