986 results about "Forceps" patented technology

The utility model discloses bipolar electrocoagulation forceps capable of adjusting directions. The bipolar electrocoagulation forceps comprise a handle part, a rotating unit and an operating part, the operating part is fixed at one end of the rotating unit, and the other end of the rotating unit is connected with the handle part; the operating part comprises a forceps rod with an insulating rod sleeve and electrocoagulation forceps mounted at the top end of the forceps rod, and a snake bone is arranged at the front end of the forceps rod; the rotating unit comprises an adjusting knob, a fixing buckle installed at the front end of the adjusting knob and a fixing cap matched with the fixing buckle. The handle part comprises a handle shell, an operation handle installed in the shell and a power transmission line connected with the conductive cable. According to the bipolar electrocoagulation forceps capable of adjusting the direction, the direction of the electrocoagulation forceps and the bending degree of the snake bone are adjusted through the adjusting knob structure of the rotating unit, meanwhile, the operating handle is adjusted to drive the conductive cable to enable the electrocoagulation forceps to be opened and closed, and an operator can rapidly change the working angle of the electrocoagulation forceps according to needs.

The invention provides a breast endoscopic surgery simulation training system. The breast endoscopic surgery simulation training system comprises a hardware end and a software end, the hardware end comprises a simulation human body model, and the software end is provided with a 3D mesh model corresponding to the simulation human body model; the simulation surgical instrument comprises a simulation electrotome, a simulation endoscope, simulation grasping forceps and a simulation incision protection sleeve, and the software end is provided with an electrotome model, an endoscope model, a grasping forceps model and an incision protection sleeve model which correspond to one another; the pose detection device is used for detecting the current pose of the simulation surgical instrument in real time and sending the current pose to the software end, so that interaction between the simulation surgical instrument and the simulation human body model is mapped to interaction between the instrument model and the 3D mesh model; the software end further comprises a display screen, and the display screen is used for displaying interaction between the instrument model and the 3D mesh model in real time. According to the scheme, breast endoscopic surgery training, teaching and research which are closer to a real surgery scene can be provided, so that the safety and the operation precision in an actual breast endoscopic surgery are improved.

The invention relates to the technical field of surgical instruments, in particular to operating forceps for temporal-mandibular arthroscopic glide membrane chondroma surgery, which comprise a forceps head assembly, a rotating sleeve, a fixed block, an arc-shaped rod, a gas-driven unit and an adjustable elbow, the forceps head assembly is a working end of the operating forceps; the rotating sleeve is of a cylindrical structure and is fixedly arranged at the tail of the tong head assembly. The fixed block is fixedly arranged at one end of the rotating sleeve away from the tong head assembly; one end of the arc-shaped rod is fixedly connected with the fixed block, and the axis of the arc-shaped rod and the axis of the rotating sleeve are collinear; the gas driving unit is arranged on one side of the arc-shaped rod and used for driving the arc-shaped rod to rotate around the axis of the arc-shaped rod. The adjustable bent pipe is arranged on the side, away from the tong head assembly, of the rotating sleeve. The device can meet the path requirement of a complex anatomical space, can improve the lesion tissue removal efficiency through angle adjustment, greatly reduces the secondary operation frequency, and gives consideration to the operation flexibility and the removal accuracy at the same time.

The invention discloses 3mm-level micro rope-driven needle forceps for minimally invasive surgery, and belongs to the technical field of medical instruments, the needle forceps are composed of an instrument tube, an instrument base, an instrument wrist part, a forceps head and a superfine rope, and precise clamping and flexible rotation are cooperatively realized; the instrument tube is a hollow titanium alloy long rod and allows the superfine rope to penetrate through. The instrument base comprises a base connecting part and a forked cavity part, and the forked cavity part is provided with a superfine rope hole, an arc-shaped guide surface and an arc-shaped lug plate and is connected with the wrist part; the instrument wrist part is provided with a lug plate structure, a main body structure and a cross structure, the lug plate structure is provided with an annular groove and a shaft hole, the main body structure is provided with a superfine rope through hole, an additional material protrusion and a limiting swing angle, and the cross structure is provided with a protruding block, a limiting end and a limiting tong head; the clamp heads are two symmetrical clamp bodies, and clamp teeth are meshed in a crossed mode to improve stability. The superfine ropes are three sets of medical stainless steel ropes or tungsten wire ropes and drive the forceps head to be opened and closed and the wrist to rotate. The needle holding forceps are optimized in structure, accurate in operation, high in space adaptability and capable of meeting fine operation requirements of minimally invasive surgery.

The invention relates to the technical field of medical instruments, in particular to a breaking device for blood clots in a digestive tract, an inner guide shaft is arranged in a catheter in a penetrating mode, a breaking head comprises a breaking cutting strip connected between an end piece and the catheter, and the breaking cutting strip is in an initial state that the breaking cutting strip elastically stretches and is folded at the periphery of the inner guide shaft. The end of the crushing head extends into the digestive tract through one end of an endoscope clamp channel, the movable finger ring is pulled upwards in the length direction of the handle, the movable finger ring drives the inner guide shaft and the end piece to synchronously and transversely move, so that the crushing cutting strips are in the state of being elastically bent and opened outwards, namely the crushing head is in the shape of an opened lantern, and then the crushing cutting strips are crushed by rotating the handle or the movable finger ring in the axial direction. The crushing head is driven to integrally and synchronously rotate, the crushing cutting strip on the outermost ring can push away digestive tract mucosa tissue to prevent mucosa from being damaged, the crushing cutting strip on the inner ring rotates around the inner guide shaft at a low speed, blood clots are crushed through a rotary cutting method, and the crushing effect is good.

The utility model relates to the technical field of medical instruments, and discloses a pair of separating forceps for endoscopic thyroid surgery, which comprises a connecting tube, one end of the connecting tube is communicated with a mounting cylinder, a draw bar penetrates through the connecting tube in a sliding manner, two groups of forceps heads are rotatably mounted at one end of the draw bar, and the other end of the draw bar penetrates through the mounting cylinder and is provided with two groups of limiting blocks. A spring is connected between the top of the mounting cylinder and the closer set of limiting blocks, a rotating plate is rotationally mounted at the top of one side wall of the mounting cylinder, a bending frame is arranged on the side, away from the connecting pipe, of the rotating plate, and the side wall, away from the rotating plate, of the bending frame is located between the two sets of limiting blocks and internally provided with a sliding way matched with the traction rod to slidably penetrate through. Compared with the prior art, the separating forceps have the advantages that the rotating plate is pressed towards the direction of the mounting cylinder through the thumb, opening and closing of the two sets of forceps heads are achieved, fingers cannot be pressed in the operation process, and the separating forceps are convenient to take up in the operation process.

A self-removal device for intrauterine device (IUD) extraction is described that includes a housing having a proximal handle and a distal aperture, and a grasper mechanism with stationary and movable elements for engaging and securing IUD threads, wherein the grasper is actuated by a lever positioned at the housing. Systems are also described comprising the device and ancillary components such as locking elements, grips, linkage assemblies, as well as kit embodiments that may include visualization aids, light sources, forceps, measuring tools, and instructions for use. A patient using the device, with or without assistance, can independently or semi-independently remove an IUD using the device and system in non-clinical settings, optionally with remote digital guidance or confirmation.

The utility model discloses a multi-hole concentric positioning device which comprises a platform, a working face is arranged on the platform, a push-out device is arranged on the working face, clamping pliers are arranged on the periphery of the working face, and a product A and a product B can be bonded and clamped through the clamping pliers. A vertical driving device is connected to the lower part of the push-out device and can drive the push-out device to vertically move on the working surface, and a combined product is taken out from the working surface after clamping combination; a plurality of locking pins are also arranged on the matching working surface; the locking pin is used for concentrically locking the product A and the product B into a whole, and the problems of dislocation of the product A and the product B and the like cannot occur even if the product leaves the working face. The multi-hole concentric positioning device is further matched with the platform to be provided with a suction cup above the platform, the suction cup is matched with the push-out device to achieve outward movement of the product composition above the platform, and physical operation of operators is better facilitated.

A guiding apparatus, system, method, and forceps device for facilitating placement of sutures in a surgical procedure. The apparatus including a shaft portion having a non-circular aperture extending laterally therethrough and a blade portion having a shank extending at an angle from the shaft portion and a blade having a blade aperture extending from the shank. The system includes a plurality of the apparatuses held substantially parallel by an elongated rod through the apertures of the shafts. The blade apertures guide the at least one suture to a desired location to pierce through a target body tissue.

The invention discloses a sliding block type tong head mechanism which comprises a jaw seat, a sliding block, a first tong claw and a second tong claw, the near ends of the two tong claws are connected with a base disc, the jaw seat is rotationally connected with the base disc, and the sliding block is connected with a traction rope, so that when the traction rope moves, the sliding block is driven to move in the jaw seat, and opening and closing of the tong claws are controlled; the problems that an existing gripper jaw is insufficient in opening force and cannot open tissue are solved, and the pair of forceps is simple in structure and easy to operate.

The invention relates to a head end mechanism and an endoscope comprising the same. The head end mechanism has an insertion direction, and includes: a lens whose optical axis intersects the insertion direction; the head end seat is connected to the lens, the head end seat comprises an instrument channel and a flushing channel which are arranged in the insertion direction, a far-end water outlet of the flushing channel is located in the near side of the lens, in the cross section of the insertion direction, the head end mechanism is provided with a flat radial direction perpendicular to the insertion direction and the optical axis, and the lens, the flushing channel and the instrument channel are sequentially arranged in the flat radial direction. The far-end water outlet is deflected to the lens relative to the instrument channel; the forceps lifting device is located on the far side of the instrument channel, the forceps lifting device can rotate relative to the head end base, and at least one part of the forceps lifting device can protrude out of the lens along the optical axis. According to the head end mechanism, a good view field is obtained, and meanwhile the situation that a lifted treatment instrument is obstructed with a flushing channel is well avoided.

The application provides a medical bipolar electrocoagulation forceps performance quantitative evaluation method, and belongs to the field of medical instrument performance detection. The method comprises the following steps: obtaining pinch force and clamping force data of the forceps at different time points in a working process; drawing a curve diagram of the pinch force and the clamping force changing with time; selecting the size of a slope mutation point in a pinch force rising stage as a pinch force compensation value in the curve diagram; selecting a region between the mutation point and a pinch force maximum point as an analysis region; calculating a ratio of the clamping force plus the compensation value to the pinch force in the region according to a physics force principle; if the ratio extreme value is in a set range, drawing a curve diagram of the pinch force and the ratio; and integrating the curve in the pinch force direction in the set range of the ratio to obtain a medical bipolar electrocoagulation forceps performance index. The application uses the medical bipolar electrocoagulation forceps performance index to quantitatively evaluate the performance of the medical bipolar electrocoagulation forceps, thereby making up for defects of existing bipolar electrocoagulation forceps performance evaluation methods.

The utility model relates to the technical field of clamping forceps, and discloses a pair of circular anastomat anvil head clamping forceps which comprises a clamping assembly, the clamping assembly comprises two main rods hinged to each other, forceps heads are arranged at the ends of the two main rods, clamping grooves are formed in the sides, close to each other, of the two forceps heads, and the two main rods are hinged to each other through the clamping grooves. An adjustable handle is arranged at the end, away from the forceps head, of the main rod and comprises two grab handles hinged to the main rod, and a connecting disc is arranged between the two grab handles. Through cooperative use of the clamping assembly, the adjustable handle and the limiting plate, hinging of the grab handle and the clamping assembly is achieved through the connecting disc and the forceps handle, the angle of the grab handle relative to the main rod can be adjusted according to needs, the clamping angle can be conveniently adjusted according to the operation habit of a doctor, the clamping accuracy is improved, and after clamping, the clamping angle can be adjusted conveniently. And the clamping position is locked through the limiting plate and the clamping column, loosening caused by misoperation is prevented, and the effects of flexible operation and stable clamping are achieved.

The invention relates to the technical field of medical instruments, in particular to superconductive low-temperature non-stick bipolar tweezers which comprise tweezers single pieces and a fixing shell, the two elastic tweezers single pieces are oppositely distributed, the fixing shell is arranged at one end, the two tweezers single pieces are clamped and fixed through the fixing shell, each tweezers single piece comprises a fixing part, a handle part, a supporting part and a tweezers tip part, the four parts are sequentially connected; a water conveying part is arranged among the fixing part, the handle part, the supporting part and the forceps tip part, the four parts are communicated through a water conveying pipe in the water conveying part, the water conveying part is connected with water conveying equipment, and cooling water stored in the water conveying pipe can cool the forceps tip part; the middle of the handle part is provided with a wire part, and the output end of the wire part is assembled with the forceps tip part and connected with high-frequency equipment through the wire part. According to the superconducting low-temperature non-stick bipolar tweezers, the risk that the bipolar tweezers adhere to human tissue can be reduced.

The application discloses a kind of head crescent boss processing methods of pin shaft structure bite cutting forceps, comprising the following steps: (1) the head of bite cutting bite cutting forceps is aged hardening;(2) the lower forceps tube of bite cutting forceps is clamped on five-axis engraving machine;(3) whether workpiece clamping on tool is in place is detected;(4) detection end mill, run program, carry out roughing to blank;(5) detection T-shaped milling cutter I, the wear condition of tool is detected in machine using tool detector, whether tool wear exceeds limit value is judged, if exceeding tool wear, machine tool automatically alarms, prompts operator to replace tool;(6) run program, outer circular surface is processed using T-shaped milling cutter I, (7) tool is replaced for T-shaped milling cutter II, T-shaped milling cutter II is detected again, and detection steps are as in step (5);(8) run program, inner circular surface is processed using T-shaped milling cutter II.The method can be processed crescent structure at a time, guarantee processing efficiency, precision and stability.

The right-angle separating forceps for the subclavian approach endoscopic surgery comprise a right-angle separating forceps head, a forceps rod, an inner rod, a rotating wheel, an operating handle and a fixing handle, the right-angle separating forceps head is installed at the front end of the forceps rod, and the inner rod is hinged to the rear end of the right-angle separating forceps head; the inner wall of the forceps rod is provided with an inner rod fixing groove, the outer side of the forceps rod is provided with a forceps rod rotating groove, and the rear end of the forceps rod is provided with a dismounting groove; fixing blocks are arranged on two sides of the middle part and are connected with the forceps rod, and a ball head is arranged at the rear end and is connected with the operating handle; a forceps rod clamping block is arranged in the rotating wheel and in an inner rod channel, and a channel opening is provided with a forceps rod clamping block clamped into the forceps rod rotating groove. The forceps are easy to disassemble, the forceps rod and the inner rod are detachable, and instruments can be thoroughly cleaned and disinfected conveniently; the clamp rod is matched with the rotating wheel, so that the clamping and separating range can be expanded; the flushing joint is vertically downward, so that the view at the upper end of the right-angle separation tong head is prevented from being blocked and the operation of a doctor is prevented; the tong head is a right-angle separating tong, so that fine operation in a narrow space is facilitated.

To enable a control body for controlling an end effector of a forceps device to be easily and properly attached and detached.SOLUTION: A forceps device comprises: an end effector capable of performing a predetermined operation on a target object; a shaft portion on which the end effector is disposed at a distal end side; a control body 63 connected to the end effector and inserted into the shaft portion; a chuck portion 9 which is slidable in an axial direction of the shaft portion and attachable / detachable to / from the control body 63 according to an axial position; and handles 81a, 82. The handles 81a, 82 are connected to the chuck portion 9, and by sliding the chuck portion 9 in the axial direction of the shaft portion, attachment / detachment between the chuck portion 9 and the control body 63 is operable, and further, by sliding the chuck portion 9 in the axial direction of the shaft portion, the end effector 7 can be operated via the control body 63 attached to the chuck portion 9.SELECTED DRAWING: Figure 13

The utility model discloses a pair of multifunctional oral cavity orthopedic support forceps, which relates to the technical field of medical equipment and comprises a hinge seat, one end of the hinge seat is symmetrically hinged with a pair of forceps arms, a first spring is fixedly connected between the forceps arms, the other end of the hinge seat is provided with a support component, one side of the hinge seat is provided with a lighting component, and the other side of the hinge seat is provided with a second spring. A positioning assembly is arranged between the other ends of the clamp arms; the positioning assembly comprises hinge plates, and the number of the hinge plates is two, and the hinge plates are symmetrically arranged between the two clamp arms. According to the utility model, the positioning component is arranged, so that the situation of looseness in the whole oral treatment process is avoided, the oral treatment efficiency and safety are effectively improved, the pain of a patient is reduced, meanwhile, the fixation can be quickly relieved through the limiting component, and the support forceps are convenient to take out; and the use effect of the supporting pliers is effectively improved.

The portable ultrasonic cleaning device used in the operation comprises a bottom shell, an ultrasonic water tank with an upward opening is arranged on the bottom shell, an ultrasonic generator used for generating ultrasonic waves is arranged in the bottom shell, a top cover covering the ultrasonic water tank is arranged on the bottom shell, and the ultrasonic water tank is arranged on the top cover. The top cover is provided with a through hole allowing the front end of the operating forceps to penetrate through, and a support is arranged outside the bottom shell and used for supporting a rod body part, located outside the top cover, of the operating forceps. The utility model provides a portable ultrasonic cleaning device used in an operation, which can be placed on an operating table, so that a surgeon can carry out ultrasonic cleaning on the front end of a pair of forceps by himself / herself in the operation process, and the cleaning effect of the front end of a pair of laparoscope forceps in the operation is improved.

The invention discloses kirschner wire operating forceps, and belongs to the technical field of medical instruments. Comprising an operating forceps body and a bending and cutting unit, the operating forceps body is provided with a left forceps body and a right forceps body, and the left forceps body is hinged to the right forceps body; the bending and cutting-off unit is arranged at the jaw end of the left clamp body and comprises two connecting plates, a positioning disc and a pressure applying disc, the positioning disc and the pressure applying disc are rotationally installed between the two connecting plates, the positioning disc is fixedly connected with the left clamp body, and a cutting edge protrudes outwards in the circumferential direction of the positioning disc. According to the kirschner wire operating forceps, the problems that after a kirschner wire is bent, the position and angle of the kirschner wire are possibly changed, at the moment, the stability of the kirschner wire is difficult to guarantee, the situation that the cutting position is inaccurate easily occurs, and even the kirschner wire is possibly bent or shifted again when a single cutting tool is used for operation are solved; the operation complexity and risk are increased.

The utility model discloses a pair of double-chuck vascular tissue closing forceps, which comprises a first handheld part, a second handheld part, a traction rod, a hinge connecting piece, a long catheter, a short bent pipe, a U-shaped block, forceps chucks, a steel wire and V-shaped spring-back pieces, and two connecting parts at the other end of the steel wire are fixedly connected with the middle parts of the two V-shaped spring-back pieces respectively; each V-shaped rebounding piece is installed between the two forceps chucks in the same group, one ends of the two forceps chucks are rotationally connected with the interior of the groove in the same end through a rotating shaft, a vascular clamp is placed between the two forceps chucks in the same group, the short grooves are formed in the end faces of the two ends of the U-shaped block respectively, and a short bent pipe is fixedly installed in the middle of the U-shaped block. The blood vessel fixing device has the advantages that based on a traditional blood vessel fixing device, a double-clamping-head structure mode is adopted, two blood vessel clamps can be clamped and fixed to the same blood vessel at the same time, the hemostasis flowing strength is enhanced, operation is convenient and fast, and the problem that the operation efficiency of clamping a single blood vessel clamp is low is solved.

The utility model provides an electrosurgical instrument and an electrosurgical system. The electrosurgical system comprises an electrosurgical host and an electrosurgical instrument electrically connected to the electrosurgical host; the electrosurgical instrument comprises a shell, a forceps rod assembly installed on the shell and an opening and closing actuating mechanism installed on the shell and used for driving the forceps rod assembly to be opened and closed so as to clamp or release tissue. The electrosurgical instrument further comprises a handle linked switch which is arranged in the shell and used for controlling electrical connection and disconnection of the forceps rod assembly and the electrosurgical main machine, and the opening and closing actuating mechanism can close the handle linked switch when being driven to a preset actuating stage, so that the forceps rod assembly and the electrosurgical main machine are conducted. When the opening and closing actuating mechanism is driven to the preset actuating stage, the handle linkage switch can be closed, so that linkage tissue clamping and tissue coagulation can be realized only by externally driving the opening and closing actuating mechanism, the operation is simple, and the holding is comfortable. The handle linked switch is arranged in the shell, so that the risks of accidental touch, cable winding and the like can be avoided.

The utility model discloses a band straight wire arch buccal tube forceps or pincers belongs to oral cavity orthodontic instrument technical field. Including two clamping arms, wherein: the clamping end of first clamping arm is equipped with the insertion end head, its cross section shape and the cross section of buccal tube arch wire channel match, can accurate insertion channel, the clamping end of second clamping arm is equipped with plane clamping part, its plane structure and the plane of buccal tube outside or downside surface are pasted, form the two -way clamping mode of insertion positioning clamping and plane support clamping. The insertion end head end is the passivation round angle structure, and the safety of convenient insertion and improvement is used, and the plane clamping part surface can be equipped with antiskid line to enhance friction. The utility model discloses through the structure cooperation design, solved the problem of traditional forceps clamping buccal tube when easy to slip, the operation unstable problem, has improved the clamping precision and clinical operation efficiency obviously, can be adapted to different models buccal tube, is applicable to the accurate installation of buccal tube in orthodontic treatment.

The ablation electrode dissector convenient to use comprises a connecting base and two forceps rods connected to the connecting base, the ends of the forceps rods are connected with electrode tips, the forceps rods are connected with an adjusting mechanism used for adjusting the kneading force between the two forceps rods, and the adjusting mechanism comprises two sliding blocks, two arc-shaped rods, an arc-shaped sleeve and a second spring. The sliding blocks are movably connected to the forceps rods, one ends of the arc-shaped rods are inserted into the arc-shaped sleeves, the other ends of the arc-shaped rods are connected with the sliding blocks, the two ends of the second spring are connected with the two arc-shaped rods, the connecting base is connected with a driving mechanism used for driving the arc-shaped sleeves to move, and the driving mechanism comprises a stud, a rotating cylinder, a connecting column and a threaded groove. The rotating cylinder is rotationally connected to the connecting column, the threaded groove is formed in the rotating cylinder, and the stud is in threaded connection with the threaded groove. According to the pair of medical forceps, the pinching force between the two forceps rods can be conveniently adjusted, medical staff can conveniently use the pair of medical forceps, and the applicability is high.

The utility model relates to the technical field of medical instruments, and discloses a laparoscope intestine pressing clamp which comprises a hollow pipe, the right end of the hollow pipe is fixedly connected with a grab handle, the outer wall of the hollow pipe is provided with a second sliding groove, the inner wall of the second sliding groove is connected with a limiting block in a sliding mode, and the outer wall of the limiting block is provided with an adjusting sleeve. And the inner wall of the adjusting sleeve is slidably connected with the outer wall of a limiting block, the bottom side of the limiting block is fixedly connected with a second limiting ring, the left side of the second limiting ring is fixedly connected with a second spring, and the inner wall of the second limiting ring is slidably connected with a guide rod. According to the utility model, by rotating the pull disc, the guide rod is pulled to enable the limiting ring I to extrude the spring II, and the position of the limiting ring II is adjusted by rotating the adjusting sleeve, so that the pressing forceps are opened, the purposes of exposing the rectum posterior clearance and the rectum anastomotic stoma and giving the visual field to a surgeon for suturing are achieved, the working efficiency is improved, and the operation time is shortened; the labor cost is reduced.

This utility model relates to the field of surgical instrument technology, and in particular to a laparoscopic minimally invasive surgical forceps, comprising a long rod, one end of which is fixedly provided with a holding component, and the other end of which is provided with a clamping component connected to the holding component. A spreading component is sleeved on the outer wall of the long rod. The spreading component includes a sleeve sleeved on the long rod, one side of which is provided with a fixing ring fixed to the long rod. A second spring is sleeved on the outer wall of the sleeve, and one side of the second spring is connected to an operating ring sleeved on the sleeve. One end of the operating ring is hinged to the spreading rod through a hinge rod, and one end of the spreading rod is hinged to the outer wall of the sleeve. This laparoscopic minimally invasive surgical forceps, by setting up a spreading component, utilizes the elastic force of the second spring to spread the spreading rod outward, thereby spreading other organs in the surgical area to both sides to expose the position of the surgical area. This facilitates various surgical operations for the surgeon and avoids the problem of surgical difficulties caused by obstruction.

The invention relates to the field of ear hole puncture, and particularly discloses an ear hole puncture instrument which comprises oval forceps and an indwelling needle. The oval pincers are crossed to form an X shape, the middle parts of the oval pincers can rotate, one end of each oval pincer is symmetrically provided with integrally fixed handles, and the other end of each oval pincer is symmetrically provided with round holes; the remaining needle is conical and comprises a needle body and a needle head, and the needle body and the needle head are of an integrated fixed structure; the pair of oval forceps is matched with an indwelling needle to penetrate an ear hole, so that the cost is lower, the operation is convenient and fast, repeated disinfection is achieved, the sanitary condition is better, and meanwhile the pair of oval forceps has wide market prospects and application value.

The present invention comprises a housing and a rod-shaped shaft that extends from the housing. Provided to the housing are: a transmission body that generates a drive force for driving a movable part; a wire that transmits the drive force of the transmission body to the movable part; a cable that supplies a current to the movable part; a guide pulley that guides the wire to the inside of the shaft; and a holding member that holds the cable. The holding member has a body portion, an opening, a guide portion, and a through hole. The guide pulley is inserted through the through hole and fixed to the body portion. The opening is formed in a surface of the body portion parallel to the axial direction of the shaft and is in communication with the guide portion. The guide portion holds the cable which has been inserted into the body portion via the opening and guides the cable to the inside of the shaft.

The invention discloses medical forceps constructed based on multi-material 3D printing and a preparation method of the medical forceps. Comprising the following steps: based on medical image data of a patient or a standard instrument model, carrying out personalized design through computer aided design software, and constructing an integrated three-dimensional digital model; then topological optimization is carried out, a weight reduction structure is designed in a non-key stress area, and slicing software is used for processing and generating a multi-material printing instruction file; then, multi-material 3D printing equipment is adopted, according to a preset material distribution scheme, materials with different mechanical properties are used for synchronously and integrally printing in the areas of the clamp beaks, the movable joints and the clamp handles, and a clamp green body is manufactured; and finally, carrying out cleaning, key part surface finish machining and sterilization treatment to obtain a final product. Matched forceps can be rapidly designed and manufactured according to special operation requirements, multiple materials with different properties are integrated on the same instrument, and the operation precision and effect are improved.