24 results about "Cut needle" patented technology

The invention discloses an automatic calibration method and system for a cutting knife needle, a cutting machine and a storage medium. The method comprises the steps that a cutting knife needle is controlled to execute a gradient retraction cutting sequence, and the extension length of the knife needle retracts by a preset gradient length after each time of cutting; collecting a trace image formed on the calibration material by cutting each time through a camera; automatically identifying the shallowest effective cutting trace in the sequence based on image analysis; and calculating the reference zero point of the tool nose according to the sequence number corresponding to the trace, the preset gradient length and the initial extension length. The calibration material has a high-contrast substrate layer and contrast layer structure. The invention further discloses a system for implementing the method, the cutting machine comprising corresponding hardware and a storage medium. According to the invention, full automation of the calibration process is realized, dependence on artificial experience is eliminated, and the method has the advantages of high calibration precision, high efficiency, good consistency and the like.

The application discloses a tube cutting needle exciting structure and an operating method, and belongs to the field of medical equipment. The tube cutting needle exciting structure is used for exciting a tube cutting needle, and the tube cutting needle comprises a tube cutting needle assembly and a shell. The tube cutting needle assembly comprises an inner needle, an outer needle and a cutting needle, and the inner needle, the outer needle and the cutting needle are connected with an inner needle seat, an outer needle seat and a cutting needle seat arranged in the shell respectively. The tube cutting needle exciting structure further comprises an upper string sliding block. A second track parallel to a needle insertion direction is arranged on an inner wall of the shell, and the cutting needle seat, the outer needle seat and the inner needle seat are arranged on the second track. The upper string sliding block can drive the cutting needle seat, the outer needle seat or the inner needle seat to move reversely to the needle insertion direction to an upper string position, so that the tube cutting needle is excited. The tube cutting needle exciting structure has good structural stability. The upper string sliding block can be driven by power, so that the operation is labor-saving, and the doctor's physical strength is saved. In addition, the problem of poor biopsy needle structural stability caused by another power-saving structure is avoided.

The application discloses a kind of electric tube cutting needle's tuning block and electric tube cutting needle, further improve existing electric tube cutting needle.The electric tube cutting needle's tuning block of the present application includes stop hook, bottom plate, sliding slot and second push button, wherein the stop hook includes first arm, second arm, third arm, fourth arm and connecting part;The bottom plate is connected with the bottom of sliding slot and the two are coplanar;Second push button is installed on the lower surface of bottom plate;First arm and second arm are connected into L shape, second arm is connected with the top edge of the first wall of sliding slot and second arm is consistent with the extension direction of the first wall;Third arm and fourth arm are connected into L shape, fourth arm is connected with the top edge of the second wall of sliding slot and second arm is consistent with the extension direction of the second wall;Connecting part, first arm and third arm form U shape.The electric tube cutting needle contains the tuning block, and the tuning block is not easy to be damaged during the use of the electric tube cutting needle.

The application discloses an electric tube cutting needle, which comprises a tube cutting needle assembly and a shell, the tube cutting needle assembly comprises an inner needle, an outer needle and a cutting needle, the inner needle, the outer needle and the cutting needle are connected with an inner needle seat, an outer needle seat and a cutting needle seat arranged in the shell respectively, the electric tube cutting needle further comprises an upper string sliding block and an electric driving mechanism, wherein the upper string sliding block is used for driving the tube cutting needle assembly to realize upper string; the electric driving mechanism is connected with the upper string sliding block and is used for driving the upper string sliding block to make linear reciprocating motion. The electric tube cutting needle can drive the upper string by the motor, is more labor-saving, saves the physical strength of doctors and guarantees normal operation of surgery; and the problem of poor structural stability of the biopsy needle caused by another labor-saving structure is avoided.

The application discloses a needle cutting machine for fish-eye pin rows, which comprises a base, a pressing mechanism, a linkage mechanism, a needle pushing mechanism, a material feeding mechanism and a fish-eye pin row, the base comprises a vertical section and a horizontal section, and the included angle between the vertical section and the horizontal section is a right angle; the pressing mechanism is arranged on the vertical section of the base and is used for cutting the connection between the fish-eye pins; the needle pushing mechanism is arranged on the horizontal section of the base, and the material feeding mechanism is connected with the needle pushing mechanism; through cooperation of the pressing mechanism, the linkage mechanism, the needle pushing mechanism and the material feeding mechanism, the semi-automatic needle cutting work is realized, the problems that the automation cutting needs high investment and long delivery period and cannot meet the requirements of small batches and sample pieces in the experimental stage are solved, the problem that the manual bevelled forceps cannot meet the size requirements of the shoulder part of the fish-eye pin after cutting is solved, and the problem of low manual cutting efficiency is also solved.

The invention discloses a tumor tissue microdissection method, device and equipment and a storage medium, and the method comprises the steps: firstly obtaining the contact area of a cutting needle, determining the size of a Tiles image block and a Patch unit which are obtained through grid division of a pathological image, and enabling the Patch unit to be matched with a single-time cutting region of the cutting needle; segmenting the pathological image into Tiles to be detected, and preprocessing to remove a background; the method comprises the following steps: screening tumor Tiles through Tiles-level classification, segmenting the tumor Tiles into Patch units, and distinguishing tumor, para-carcinoma and invalid Patches through Patch-level classification; the tumor concentration is calculated, target Tiles conforming to the preset concentration are screened, a cutting path is generated, and equipment cutting is controlled. According to the method, accurate matching of image analysis granularity and cutting hardware precision is realized, tumor concentration can be quantified, para-carcinoma tissues can be accurately removed, and cutting precision, efficiency and automation degree are remarkably improved.

The application discloses a method for controlling a cutting needle and a cutting machine. The method comprises the following steps: configuring a reference zero point of a cutting needle tip; when cutting a material to be cut, determining a corresponding target cutting length according to obtained material information of the material to be cut; and controlling the cutting needle to perform a cutting task on the material to be cut based on the reference zero point of the cutting needle tip and the target cutting length. The method can improve the adjustment efficiency of the cutting needle.

A puncture needle is connected with a freezing mechanism, a rotary-cut needle tube arranged on the puncture needle in a sleeving mode is arranged, a mechanical rotary-cut structure is in linkage with the rotary-cut needle tube, a limiting mechanism is arranged, the rotary-cut needle tube is limited to the near-end position, and pre-stored mechanical energy is formed; a release mechanism linked with the freezing mechanism and the limiting mechanism is further arranged, and the release mechanism is set to start the freezing mechanism and release the pre-stored mechanical energy in a first release position and a second release position respectively, so that the peripheral tissue of the puncture needle is frozen firstly through the single-stroke pushing of the release mechanism; the mechanical rotary cutting mechanism converts the pre-stored mechanical energy output by the limiting mechanism into composite rotary cutting motion of the rotary cutting needle tube to achieve rotary cutting of frozen tissue, so that rotary cutting sampling is completed, the whole process is mechanical, extra electric power or pneumatic power is not needed, the whole product is miniaturized, the weight can be effectively reduced, and operation is convenient.

The application discloses a rotary cutting device, a rotary cutting system and a driving control method thereof, and relates to the technical field of medical devices, in particular to a rotary cutting device, a rotary cutting system and a driving control method thereof. The rotary cutting device comprises a rotary cutting driving body and a first control unit. The rotary cutting driving body is connected with a rotary cutting needle and is used for driving the rotary cutting needle to rotate and cut tissues. The rotary cutting driving body is connected with the first control unit. The first control unit comprises a current monitoring module. The current monitoring module is used for collecting current signals of the rotary cutting driving body in real time. The first control unit is provided with an upper limit threshold value of the current of the rotary cutting driving body. When the current value corresponding to the current signals is greater than the upper limit threshold value of the current, the first control unit adjusts the rotary cutting driving body to reduce the first rotating speed of the rotary cutting driving body. The application can adaptively reduce the rotary cutting rotating speed when high-hardness tissues are cut, avoid damage of the rotary cutting needle blade, and improve the efficiency and safety of the rotary cutting operation.

The application discloses a file adjusting structure and an electric pipe cutting needle, and the file adjusting structure is used for adjusting the firing range of a biopsy needle and comprises a threaded part, a file adjusting part which is threadedly connected with the threaded part, a gear position indicating part which is arranged on the file adjusting part, and a blocking part which is arranged on the file adjusting part. After the biopsy needle is fired, the needle seat of the biopsy needle is stopped by impacting the blocking part. The threaded part is rotated to drive the file adjusting part and the blocking part to move along the needle insertion direction of the biopsy needle or in the reverse direction to adjust the firing range of the biopsy needle. The threaded part is rotated to drive the file adjusting part and the gear position indicating part to move along the needle insertion direction of the biopsy needle or in the reverse direction to indicate the firing range distance of the biopsy needle. The application can realize stepless file adjusting, the firing range of the biopsy needle can be adjusted at will in an interval range, there is no position where impact stress is particularly concentrated on the file adjusting structure, the file adjusting structure can bear a larger number of firing impacts, the firing range distance of the biopsy needle can be indicated, and it is convenient for an operator to confirm the firing distance.

This utility model relates to the technical field of needle manufacturing, and in particular to a nonwoven needle fixed-length cutting device. It uses a collecting mechanism to automatically collect the cut needle blanks, facilitating collection and offering ease of use and high practicality. The device includes a base plate, a support plate, a lifting frame A, and an electric hydraulic clamp. The support plate is fixedly installed on the upper part of the base plate, and the electric hydraulic clamp is fixedly installed below the lifting frame A, located to the right of the support plate. It also includes a fixing plate, a feeding mechanism, a positioning mechanism, and a collecting mechanism. The fixing plate is fixedly installed on the upper part of the support plate and has left and right connecting positioning holes. The collecting mechanism is located below the electric hydraulic clamp. The feeding mechanism is installed on the support plate and has a feeding function. The positioning mechanism is located to the right of the electric hydraulic clamp and has a positioning function.

The application discloses a mechanical frozen rotary cutting biopsy needle, which is characterized in that a puncture needle is connected with a freezing mechanism, a rotary cutting needle tube is arranged on the puncture needle, a mechanical rotary cutting structure is connected with the rotary cutting needle tube, a limiting mechanism is arranged, the rotary cutting needle tube is limited at a proximal end position and a pre-stored mechanical energy is formed, a releasing mechanism is further arranged and connected with the freezing mechanism and the limiting mechanism, the releasing mechanism is arranged to open the freezing mechanism and release the pre-stored mechanical energy by releasing the limitation at a first releasing position and a second releasing position respectively, and then the releasing mechanism is pushed by single stroke to realize the freezing of the peripheral tissue of the puncture needle, the pre-stored mechanical energy output by the limiting mechanism is converted into the composite rotary cutting motion of the rotary cutting needle tube by the mechanical rotary cutting mechanism to realize the rotary cutting of the frozen tissue, and the rotary cutting sampling is completed, the whole process is mechanical, no additional electric power or pneumatic power is needed, the product is miniaturized as a whole, the weight can be effectively reduced, and the operation is facilitated.

The utility model discloses an injector assembly, and relates to the technical field of medical instruments. Comprising a needle cylinder, an isolation plate is arranged in the needle cylinder, a cavity is formed in one side of the interior of the needle cylinder, sliding grooves extending into the cavity are symmetrically formed in the side, located in the cavity, of the surface of the needle cylinder, a circular ring is slidably connected to the interior of the cavity, a connecting frame is slidably connected to one side of the interior of the needle cylinder, and shifting blocks connected with the circular ring are slidably connected to the surfaces of the sliding grooves; a first magnetic ring is fixedly mounted on the inner ring surface of the circular ring, and a second magnetic ring is fixedly mounted on the outer ring surface of the connecting frame; the extending needle head is limited and fixed through the arranged limiting assembly, at the moment, the spring assembly is extruded and has elastic force, after injection is completed and the needle head is pulled out, limiting on the shifting block is relieved, and the needle head retracts into the needle cylinder again under the elastic force of the spring assembly; and the hand of a user is prevented from being injured and infected when the needle cap covers the surface of the needle head again.

The utility model discloses a detachable needle module for microdissection, which belongs to the technical field of microdissection and comprises a driving shaft and a cutting needle. The driving shaft is connected with a quick connection assembly for quick disassembly and quick assembly; the quick connection assembly is connected with a connecting shaft; the end, away from the driving shaft, of the connecting shaft is provided with a fixing assembly used for installing the cutting needle, and the cutting needle is inserted into the fixing assembly. A contact sensing assembly used for detecting whether the connecting shaft is separated from the driving shaft or not is installed in the driving shaft and the connecting shaft. The cutting needle is inserted into the fixing assembly, so that the cutting needle is convenient to install; the connecting shaft drives the magnetic attraction of the quick connection assembly to the end of the driving shaft, quick installation of the connecting shaft is achieved, the connecting shaft and the driving shaft can be quickly separated when the cutting needle makes hard contact with the glass slide, damage to the glass slide, the cutting needle and a sample is avoided, waste of precious samples and deviation of experimental data can be avoided, meanwhile, the use cost is reduced, and in addition, the use efficiency is improved. The contact sensing assembly can detect the connecting state of the connecting shaft and the driving shaft.

The utility model discloses a watch hand cutting machine which comprises a machine frame, a cutting mechanism and a clamping feeding mechanism, the cutting mechanism and the clamping feeding mechanism are arranged on the machine frame, the cutting mechanism is provided with a first cutter, a second cutter and a first driving device, the first driving device drives the first cutter to move relative to the second cutter, and the clamping feeding mechanism is provided with a clamping assembly and a second driving device. The second driving device drives the clamping assembly to move close to or far away from the cutting mechanism, the clamping assembly is provided with a mounting base, a first clamping module and a second clamping module, the first clamping module and the second clamping module are arranged on the mounting base, positioning rods are arranged on the first clamping module and the second clamping module, and when the first clamping module and the second clamping module clamp the watch hand belt, the positioning rods are arranged on the positioning rods. According to the watch hand cutting device, the positioning rod is matched with the positioning hole in the watch hand belt, when the watch hand is cut, the position of the watch hand belt is prevented from deviating, the cutting precision of the watch hand is improved, and the effect is better.

The utility model relates to a low-wound painless injection needle which comprises a needle body section and a needle eye section formed by cutting an original section, the needle is symmetrical according to the symmetry plane of the needle, and the needle eye section comprises a stabbing and cutting section, a breaking and cutting section, a bionic resistance reducing section and a low-wound section which are sequentially arranged in the direction from the needle tip to the needle body section; the stabbing and cutting section comprises two first concave cylindrical surfaces which are symmetrical according to the symmetrical surface of the needle head; the breaking and cutting section is formed by chamfering the original cutting surface; the bionic resistance reduction section comprises a plurality of second concave cylindrical surfaces; and the low-wound section is formed by rounding the original section. By arranging the puncturing and cutting section, the needle head is sharper, the puncturing part of the needle head is thinner, and the pain-free feeling is enhanced; by arranging the bionic resistance reduction section, the skin nerves of the patient are regularly relaxed, and the pain feeling is reduced. By arranging the bionic anti-drag section and the low-wound section, an original sharp inclined plane is changed into a smooth structure, cutting to blood vessels is reduced, and after the original mode that the needle head is inserted and slides and cuts at the same time is changed into the mode that the needle head punctures the blood vessels, the needle head is inserted in the state that a puncturing opening expands naturally and elastically.

The utility model belongs to the technical field of medical instruments, and discloses a biopsy gun with double firing buttons and a self-locking function, which comprises a shell and a needle tube assembly, an inner core needle, a cutting tube and an outer sleeve are coaxially nested from inside to outside, and a pushing piece, a cutting needle tube fixing piece, an elastic assembly and the firing buttons are arranged inside and outside the shell. The cutting tube and the outer sleeve are fixedly connected with the cutting needle tube fixing part and elastically connected with the bottom of the near end of the shell through the elastic assembly, the pushing part is arranged on the outer side of the cutting needle tube fixing part and can drive the cutting needle tube fixing part to move towards the near end and compress the elastic assembly to enable the device to be in a winding state, and the excitation button is arranged on the end face of the near end of the shell. The excitation button is used for exciting the cutting needle tube fixing piece to emit, and the pushing piece is connected with the excitation button and can also excite the cutting needle tube fixing piece to emit. The percussion button is additionally arranged on the end face of the near end of the shell, limitation of the angle of a biopsy gun is avoided, operation of an operator is facilitated, and different biopsy operation requirements can be met.

The invention provides a shark mouth type sampling device and a multi-blade-face needle tip, the shark mouth type sampling device comprises a handle assembly, a guide assembly, a multi-blade-face needle tip and a suction assembly, the multi-blade-face needle tip is detachably installed on the handle assembly through the guide assembly and penetrates through the head and the tail of the handle assembly, and the suction assembly is detachably installed on the handle assembly through the guide assembly. The suction assembly is detachably installed at the tail end of the handle assembly and communicated with the multi-blade-face needle point, the head end of the multi-blade-face needle point is provided with a plurality of cutting needles, a plurality of cutting blades and a plurality of cutting openings to form a plurality of blade faces, and the multi-blade-face needle point is operated through the handle assembly to cut tissue from multiple directions. Then the sampling tissue strips obtained through cutting are sucked out under the negative pressure effect of the suction assembly, the obtained sample tissue is complete and large in amount, cutting is efficient, and the operation time is shortened.

The utility model provides a detection device for detecting the service life of a rotary-cut needle, and the device comprises a supporting seat which is internally provided with an accommodation cavity. The driving mechanism is arranged in the accommodating cavity; the positioning seat comprises a positioning cavity used for positioning the rotary cutting needle, the positioning cavity is communicated with the containing cavity, and the driving mechanism is partially located in the positioning cavity and used for being connected with the rotary cutting needle so as to drive the rotary cutting needle to move. The positioning seat is used for bearing the rotary-cut needle needing to be detected, then the driving mechanism in the containing cavity is used for driving the rotary-cut needle to move in the positioning seat, the action of the rotary-cut needle in the operation process is simulated, the service life of the rotary-cut needle can be obtained through testing, and the safety of the operation is guaranteed.

The utility model relates to a cutting mechanism for dentist needle box processing, which comprises a processing table, a pair of placing seats are symmetrically fixed above the processing table, an arch-shaped frame is fixed above the processing table, two vertically extending guide rods are inserted on the arch-shaped frame in a sliding and penetrating way, lower pressing seats are fixed at the lower end parts of the two guide rods, and the positions of the lower pressing seats and the placing seats are in one-to-one correspondence; a driving mechanism used for driving the two guide rods to be synchronously lifted and adjusted is arranged above the arch frame, a sliding groove extending in a front-back penetrating mode is formed in the position, located between the two downward pressing bases, of the arch frame, a sliding frame capable of being moved and adjusted front and back is slidably installed in the sliding groove, and a cutting device used for cutting the needle box is arranged below the sliding frame. According to the needle box cutting device, the driving mechanism works to drive the guide rod and the pressing seat to press downwards, the pressing seat and the arch-shaped frame are matched to tightly press the needle box, the needle box is fixed, the sliding frame and the sliding groove are matched, so that the cutting device can feed and retreat back and forth, cutting is convenient, traditional handheld operation is replaced, and safety is high.

A surgical robot system includes a combined end effector for performing suturing operations. The end effector includes a pair of pivotable grippers, each gripper comprising a distal gripping surface and a proximal cutting body having a straight and / or curved blade that is obscured unless the grippers are fully open. The opening angle and aperture between the grippers, and between the corresponding gripping surfaces and the blade, are controlled by paddles movable relative to a handle. The system includes a controller for implementing various control schemes to guide, adjust, and provide feedback to user input via the paddles to control the aperture between the grippers and to operate the end effector in gripping and cutting modes.

The utility model discloses an anti-stabbing sharp instrument box, and particularly relates to the field of neurology, the anti-stabbing sharp instrument box comprises a box body, the bottom of the box body is in threaded connection with a spiral bottom cover, the anti-stabbing sharp instrument box is characterized in that the top of the box body is provided with a cut-off mechanism, the cut-off mechanism comprises a box cover, and the front side of the top of the box cover is provided with a feeding groove; the left side and the right side of the feeding groove are provided with a pair of blades which are in mirror symmetry and can conduct rotary cutting. A sliding rod is pulled clockwise, the sliding rod drives a right rotating rod and a blade to rotate clockwise through a driving block, and meanwhile, a left rotating rod and a corresponding blade are driven to rotate anticlockwise through transmission of two gears, so that the effect that the two blades rotate oppositely is achieved, and a needle head located in a feeding groove is cut; and after cutting, the two blades cover the feeding groove to prevent the cut needle from splashing out. Other articles such as glass and knife fragments can be directly put into the putting groove. Therefore, the effect of preventing misunderstanding of the cutting device is achieved.

Disclosed in the present invention is a biopsy needle having a hemostasic function, the biopsy needle comprising: a sampling needle; a cutting needle assembly, which comprises a cutting needle and an inner insulation layer covering the outer circumference of the cutting needle, the cutting needle being fitted around the outer circumference of the sampling needle, and a distal end of the cutting needle being exposed from the inner insulation layer and forming a first electrode with a distal end of the sampling needle; a cannula assembly, which comprises a cannula and an outer insulation layer covering the outer circumference of the cannula, a distal end of the cannula being exposed from the outer insulation layer and forming a second electrode, wherein the cannula assembly is configured to be detachably connected to a handle of a biopsy needle by means of a cannula plug, so that the cannula is coaxially sleeved around the outer circumference of the cutting needle; and a proximal end of the sampling needle and a proximal end of the cannula plug are both electrically connected to a power supply device, so that after sample tissue is removed, the sampling needle and the cutting needle assembly are inserted into the cannula, and then the first electrode and the second electrode are energized to perform a hemostasis operation on a needle tract.

The utility model relates to a biopsy rotary cutting needle gas circuit control device with an anti-drop structure, which comprises a plug board arranged on rotary cutting equipment and a gas circuit control valve arranged in the plug board, the whole plug board is cylindrical, the inside of the plug board is hollow, the gas circuit control valve is inserted into the plug board, and the anti-drop structure is arranged on the plug board. An air outlet connector connected with an upper air path and a lower air path of a biopsy rotary cutting needle is arranged at the bottom of the inserting plate, an air inlet connector connected with a negative pressure system of a rotary cutting system is arranged on the side body of the inserting plate, the air outlet connector and the air inlet connector are controlled to be opened and closed through an air path control valve, and a pressure relief pipeline is further arranged on the opposite side of the air inlet connector. The negative pressure between the two connectors disappears by opening the pressure relief pipeline, and a clamping groove is further formed in the inserting plate and used for being connected with an air path control valve in a clamping mode. The utility model has the advantages of simple structure, practicability, convenience, rapidness, safety, reliability and the like.