65 results about "Scalpel handle" patented technology

The utility model relates to a cervical conization knife, and belongs to the field of gynecological operation instruments. Comprising a knife handle and a detachable blade. And the front end 2 of the knife handle tilts and forms an angle with the longitudinal axis of the handheld end 1 of the knife handle. According to different angles between the longitudinal axis of the front end 2 of the scalpel handle and the longitudinal axis of the handheld end 1 of the scalpel handle, the scalpel is divided into three models of A, B and C which are respectively at angles of 27 degrees, 31 degrees and 37 degrees. The cross section of the blade body is arc-shaped, the radian is consistent with that of the cervix uteri, the arc length is 1 / 8 of the circumference of the cervix uteri, namely 1cm, the two sides of the blade are both blade faces 3, the front ends of the blade faces 3 converge to enable the blade tip 4 to be an arc-shaped triangle, the rear end 5 of the blade is a parallel blunt face, and the longitudinal axis of the blade is provided with scales 6. Compared with a traditional cold knife, the novel cervical cold knife can be applied to gynecology cervical cold knife conization, surgical operation is facilitated, a cut cone can be regular, cervical injury is reduced, and the shape and the function of the cervix are reserved to the maximum extent.

The embodiment of the utility model discloses an ultrasonic scalpel rod, an ultrasonic scalpel handle and an ultrasonic surgical instrument, the ultrasonic scalpel rod transmits ultrasonic waves from the bottom end to the top end, and the top end of the ultrasonic scalpel rod corresponds to the maximum amplitude point of the ultrasonic waves; the length of the ultrasonic scalpel rod is a preset integral multiple of the half-wavelength of ultrasonic waves, and the preset integral multiple is larger than or equal to 5 times and smaller than or equal to 11 times; the area of the cross section of the energy output end of the ultrasonic scalpel rod is gradually reduced from the bottom to the top end. According to the embodiment of the invention, the overall mechanical strength of the cutter bar can be higher, the risk of breakage is reduced, ultrasonic waves can be output with maximum energy, and the surgical effect is improved.

The ultrasonic scalpel handle comprises a handle body and a power connecting line, the handle body is provided with a mounting hole used for being connected with a scalpel, and the power connecting line comprises a conductive wire and a connecting base fixedly arranged at one end of the conductive wire. The other end of the electric lead is electrically connected with a circuit element located in the handle body, the connecting base is provided with a connecting structure used for being connected with an external power source, the connecting base can be inserted into the mounting hole in a matched mode, and the connecting base is inserted into the mounting hole in the front portion of the handle body during cleaning and disinfection. According to the handle, the mounting hole can be blocked, so that liquid is prevented from entering the inner cavity of the handle body from the mounting hole to damage internal circuit elements in the cleaning and disinfection process, the operation is convenient, and a waterproof end plug does not need to be additionally arranged; and the problems of independent storage, easy loss and the like caused by independent configuration of the waterproof end plug are avoided.

The utility model discloses a dental operating knife handle assembly which comprises a blade and a knife handle, a holding point according to the human engineering principle is arranged at the front end, close to the blade, of the knife handle, round protrusions are arranged on the two sides of the middle end of the knife handle, concave holding points are arranged opposite to the round protrusions, and a spoon head is arranged at the end, away from the blade, of the knife handle. The outer edge of the knife handle is arranged to be in the shape of a hand-shaped fitting curve. The dental scalpel is reasonable in structural design, an operator holds the scalpel handle in the working process, the outer edge of the scalpel handle is arranged to be in the shape of a hand fit curve, holding is convenient, the spoon head arranged at the rear end can be used for repairing false teeth in the false tooth machining process, the installation position of the false teeth can be slightly adjusted, and comfort, holding feeling and operability are improved when the dental scalpel is used.

1. Name of the design product: Scalpel handle. 2. Use of the design product: The design product is used as the handle of a scalpel in medical instruments. 3. Design key points of the design product: Lies in the shape. 4. Picture or photograph that best shows the design key points: Perspective view 1. 5. The top view and the bottom view are already expressed in other views, so the top view and the bottom view are omitted.

1. The name of the product of this design: ultrasonic surgical knife handle. 2. Purpose of the product of this design: to convert electrical energy into mechanical energy, and to convert mechanical energy into ultrasonic vibration of the ultrasonic knife rod. 3. The design key point of this appearance design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The invention discloses a dermatological scraping device, and relates to the field of medical instruments, the dermatological scraping device comprises a surgical knife handle and a scraping frame clamped on the surgical knife handle, a curled blade and a blade are slidably arranged on two sides of the scraping frame respectively, a spatula is slidably arranged at the end of the scraping frame, and the dermatological scraping device further comprises a sliding mechanism arranged on the scraping frame, the scraping frame is used for sliding adjustment of the curling blade, the blade and the spatula, the curling blade, the blade and the spatula are connected to the interior of the scraping frame in a limited and sliding mode through a plurality of limiting sliding blocks, so that the curling blade, the blade and the spatula can be stored in the scraping frame when not used, transportation and protection are facilitated, and when in use, the curling blade, the blade and the spatula can be stored in the scraping frame. The skin scraping device is simple in structure and convenient to use, can be pushed out in a sliding mode for use according to the skin scraping condition requirement of a patient, so that the situation that skin scraping and sampling are inconvenient is avoided, and the skin scraping and sampling convenience of the dermatology department is improved.

Title: power connection cable for ultrasonic scalpel handle; usage of the product of this design: the overall usage is ultrasonic scalpel handle for surgical procedures such as hemostatic separation of soft tissues and tissue coagulation; the local usage is that the connection cable on the handle connects to the power source; key points: the design is a partial design and doesn’t claim color protection; the protection is in the shape of the claimed parts; color is only for distinguishing protection scope; the content in yellow in each view is for protection, the content in grey is not for protection.

The utility model relates to the field of medical instruments, in particular to a surgical blade dismantling device. The surgical knife blade dismantling device comprises a box body and a cover body matched with the box body, an inserting notch for inserting a surgical knife is formed in the cover body, a knife retracting notch corresponding to the inserting notch is formed in the box body, and a knife dismantling mechanism is arranged in the cover body. According to the surgical knife blade dismantling device, through the cooperation of the box body, the cover body, the inserting notch, the knife retracting notch, the knife dismantling mechanism and the like, when the surgical knife blade dismantling device is used, a surgical knife is inserted from the inserting notch, a surgical knife handle is pressed downwards, the knife dismantling mechanism dismantles a surgical knife blade, the surgical knife blade is left in the box body, and the surgical knife handle retreats from the knife retracting notch; the scalpel blade is conveniently detached in a sealed environment, so that the pollution risk and the accidental injury risk are greatly reduced, and the potential safety hazard is reduced.

The radio frequency radio-wave knife comprises a knife handle, a knife head arranged on one side of the knife handle and a blade inserted into the knife head, the front face and the back face of the knife handle are both electrically connected with a control panel, and the control panel is used for sending electric signals to the knife handle to change the function. The front face and the back face of the cutter handle are fixedly connected with connecting blocks, the surfaces of the connecting blocks are movably connected with shielding plates through pin shafts, the sides, away from the connecting blocks, of the shielding plates extend to the outer side of the control panel, and the shielding plates can shield the control panel. The control panels are arranged on the front face and the back face of the scalpel handle, the movable shielding plates are arranged to shield the control panels, an effective anti-misoperation mechanism can be provided, a doctor can selectively expose or shield the control panels according to needs in the operation process, and therefore unnecessary misoperation is avoided, and the operation efficiency is improved. And the safety and the accuracy of the operation are improved.

The invention discloses an ultrasonic scalpel handle sterile connecting sleeve, and relates to the technical field of medical instruments, the ultrasonic scalpel handle sterile connecting sleeve comprises a fixing cylinder, a sealing member, a fixing member and a protective sleeve, the protective sleeve is used for sterile protection of the tail part of a scalpel handle part and a cable thereof; the bottom of the fixing cylinder is provided with an opening used for buckling the fixing cylinder on the tool bit part, and the opening enables the fixing cylinder to form a semi-open type inverted-U-shaped cover-shaped structure. The sealing piece comprises an air bag ring which surrounds the edge of the opening by a circle and is embedded in the fixing cylinder, and an inflation piece used for inflating the air bag ring. The fixing piece comprises a first pull rope used for hanging the front end of the tool bit part, a second pull rope used for hanging a handle of the tool bit part and a positioning piece used for abutting against the top face of the tool bit part. The fixing cylinder is buckled at the top of the handle of the scalpel head part, and a gap is filled through the air bag ring, so that the ultrasonic scalpel is adaptive to various ultrasonic scalpels, and the adaptability is higher; the fixing cylinder is tensioned and fixed on the tool bit handle through the two pull ropes, traditional binding is replaced, and operation is easy and convenient.

The invention discloses a waterproof end plug for cleaning an ultrasonic scalpel handle and a cleaning box, the ultrasonic scalpel handle is provided with a mounting hole for mounting a cutter, the waterproof end plug comprises a plug body, a sealing piece and an expandable piece, and the plug part of the waterproof end plug is inserted into the mounting hole of a connector on the ultrasonic scalpel handle; in the process of cleaning the ultrasonic scalpel handle, the mounting hole is blocked by the waterproof end plug, so that the hollow channel of the mounting hole is closed, and liquid is prevented from entering the ultrasonic scalpel handle; when the ultrasonic scalpel handle is placed in a vacuum sterilization environment, the expandable part expands to open the hollow channel in the waterproof end plug, so that the pressures inside and outside the ultrasonic scalpel handle are the same, and sterilization gas can enter the ultrasonic scalpel handle to sterilize and disinfect internal parts of the ultrasonic scalpel handle. The waterproof end plug can be matched with a cleaning box to be used for the ultrasonic scalpel handle, and the risk that the ultrasonic scalpel handle is damaged is avoided or reduced.

The cornea scalpel comprises a scalpel head and an adjustable scalpel handle, an arc-shaped cutting edge is arranged on one side of the front end of the scalpel head, the width of the arc-shaped cutting edge is 0.3-0.4 mm, the front end of the scalpel head is arranged to be the arc-shaped cutting edge, the width of the arc-shaped cutting edge is controlled to be 0.3-0.4 mm, and the cornea scalpel can be suitable for debridement treatment of small and deep focuses. A clamping opening is formed in the tool bit, the adjustable tool handle comprises a mounting part and an adjustable part, a blocking protruding edge is arranged at the joint of the mounting part and the adjustable part, a clamping protruding block corresponding to the clamping opening is arranged on the mounting part, and a clamping groove is formed in the periphery of the clamping protruding block. The rear end of the scalpel head abuts against the edge of the blocking protrusion, the scalpel head is connected with the adjustable scalpel handle, the length of the scalpel handle can be adjusted by operating the adjustable scalpel handle according to actual operation conditions, and use convenience is improved.

The inclined positioning knife rest comprises a base plate and a knife holder, the knife holder is located on the upper end face of the base plate, and an inclined top face is arranged on the upper portion of the knife holder. A blade groove and a handle groove are formed in the inclined top surface; the blade groove and the handle groove are grooves with upward openings and are communicated with each other; the inner wall of the handle groove is provided with flexible convex ribs, and the flexible convex ribs are arranged in a linear array shape in the extending direction of the handle groove; a flow guide groove is further formed in the tool apron, located at the bottom end of the blade groove and communicated with the lower end of the handle groove. A liquid collecting groove is further formed in the base plate. According to the inclined positioning knife rest for the scalpel, the scalpel can be positioned and placed, medical staff can take and place the scalpel conveniently, the risk of touching the scalpel blade is reduced, and residual liquid on the scalpel blade and the scalpel handle can flow down.

The utility model relates to the technical field of medical cutting tools, in particular to a medical hook knife which comprises a knife handle, a fixing mechanism is installed at the top of the knife handle, a ring body is installed on the surface of the fixing mechanism, a knife body main body is installed on the left side of the ring body, and a positioning mechanism is installed on the surface of the knife handle. The bottom of the surface of the knife handle is fixedly sleeved with an anti-skid handle, and the fixing mechanism comprises two short blocks. The pull block is pulled to drive the long rod to move, so that the upper end of the long rod is separated from an original clamping groove in the ring body, then the movable block moves, the second spring is stretched, the cutter body and the ring body are rotated, after adjustment is completed, the pull block is loosened, and the long rod is inserted into the clamping groove under the action of retraction of the second spring; therefore, the angle between the scalpel handle and the scalpel main body can be adjusted, the scalpel is suitable for various operation scenes, and flexibility and applicability are improved.

The invention relates to the technical field of smoke filtering devices, in particular to a smoke filtering device of an electrotome for medical surgery, comprising: an equipment body comprising an electrotome handle, the bottom end of the electrotome handle is provided with a wiring hole, the surface of the electrotome handle is provided with a control key, and the top end of the electrotome handle is connected with an electrotome rod; the outer wall of the top end of the electric knife handle is sleeved with a filtering structure which comprises a positioning lantern ring, and the top end of the positioning lantern ring is connected with a smoke blocking ring. By starting the micro air pump, smoke generated by combustion of the electrotome rod enters the air inlet formed in the positioning lantern ring through guiding of the smoke blocking ring, enters the first filter pipe through the air supply pipe, enters the second filter pipe from the exhaust pipe after being filtered for the first time, and is filtered through a compact fiber matrix of the second filter pipe, so that the smoke is filtered; and tiny particles and pollutants are captured, so that secondary filtration is carried out, and the effects of efficiently filtering and discharging harmful substances possibly contained in the smoke are achieved.

The ultrasonic scalpel handle protective sleeve comprises a sleeve body, a main sealing piece, a first sealing piece and a finger sleeve piece, the sleeve body comprises a main body part and a first extending part, an inner cavity of the main body part is communicated with an inner cavity of the first extending part, the first extending part extends forwards from the front end of the main body part, and a main inlet is formed in the upper portion of the main body part; a first opening is formed in the front end of the first extending part, and the main sealing piece is used for sealing the main inlet; the first sealing piece is used for fixing the first extending part on a cutter; a finger sleeve channel allowing a finger to penetrate is formed between the finger sleeve piece and the sleeve body. According to the handle protection sleeve, the handle can be fully protected, pollution caused by blood, tissue fluid and the like entering the handle and inconvenience in cleaning and disinfection are avoided, and particularly, an operator can also rotate the operation knob by matching the index finger with the finger sleeve piece, so that the operation is more convenient. The problems of inconvenience and the like caused by wrinkles of the handle protection sleeve due to rotation of the operation knob in the operation process are solved.

The utility model relates to the technical field of medical instruments, and discloses a medical pipe joint assembly and a medical scalpel handle thereof, the medical pipe joint assembly comprises a handle joint, a tool bit joint, an elastic lock pin and an operating piece, the handle joint is provided with a pipeline socket, a locking groove and an insertion channel, and the handle joint is provided with a clamping port; the clamping opening penetrates through the groove wall of the locking groove and communicates with the locking groove. The tool bit connector is provided with an insertion pipe channel, the insertion pipe channel is communicated with the insertion connection channel, one end of the periphery of the tool bit connector is connected with a clamping and locking block, the clamping and locking block is provided with a clamping and locking through groove, the clamping and locking block is inserted into the locking groove through the pipeline insertion opening and connected with the tool handle connector in a clamped mode, an opening of the clamping and locking through groove faces the clamping opening, and the elastic lock pin extends into the clamping opening and is connected to the clamping and locking through groove in a clamped mode. The operating piece is connected with the elastic lock pin and used for inserting the elastic lock pin into the clamping opening and the clamping through groove or pulling the elastic lock pin out of the clamping opening and the clamping through groove. According to the medical pipe joint assembly and the scalpel handle thereof, the elastic lock pin is easily separated from the clamping groove.

The invention discloses a portable ultrasonic knife for rapid blood-free tracheotomy, and relates to an ultrasonic knife for tracheotomy. The invention aims to provide the hemostat which can stop bleeding or automatically stop bleeding in the operation process; the view is clear, damage is avoided, and time is saved; the multifunctional scalpel has multiple functions, can be used for cutting skin, especially hardened skin after burning, can also be used for cutting tracheal cartilage, and can face multiple conditions at the same time; the tracheotomy ultrasonic knife is small, exquisite and convenient to carry. The portable ultrasonic scalpel comprises a scalpel head and a scalpel handle and is of a scalpel type structure on the whole, the scalpel head comprises a main blade and an auxiliary blade, the lower edge of the main blade is of a sharp blade type structure, the upper edge of the main blade is matched with the lower edge of the auxiliary blade to form scissors, and the front ends of the main blade and the auxiliary blade are sharp ends and are combined into electrodes. The portable ultrasonic scalpel simultaneously has three functions, namely the scalpel, the scissors and the bipolar electrocoagulation, and can be freely switched according to needs, so that the effects of quickly cutting (skin, soft tissue and cartilage) and thoroughly stopping bleeding by one scalpel are achieved.

1. Name of this design: Home-use ultrasonic scalpel handle (desktop type, third generation). 2. Purpose of this design: For use in ultrasonic scalpel handles. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model discloses a scalpel handle feeding device for a scalpel assembly machine, which comprises a cabinet, and a vibration feeding assembly, a pushing assembly, a sliding material receiving assembly, a detection assembly and a transfer assembly which are arranged on the cabinet, the pushing assembly comprises a bracket and a material pushing rod which are oppositely arranged, and the material pushing rod is controlled by a material pushing air cylinder to stretch out and draw back; the sliding material receiving assembly comprises a material receiving seat and a transverse moving module, the material receiving seat is located below the feeding plate to receive the cutter handles, the material receiving seat moves to the position between the bracket and the material pushing rod through the transverse moving module, and the cutter handles in the material receiving seat are pushed into the bracket through the material pushing rod; the transferring module clamps the cutter handles in the bracket and transfers the cutter handles to the position above the detection group for visual detection, and qualified cutter handles are fed. According to the utility model, appearance detection is carried out while automatic feeding of the cutter handle is realized, and efficiency is improved while subsequent quality is guaranteed.

1. The name of the design product: the power connection line of the handle of the ultrasonic scalpel. 2. The use of the design product: the overall use is the handle of the ultrasonic scalpel for the hemostatic separation and coagulation of soft tissues; the local use is the connection line for connecting the power supply on the handle. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view. 5. Other circumstances that need to be explained: the design is a partial design, and the part other than the gray part in each view is the part to be protected.

The invention discloses a knob type adjustable clamping force ultrasonic scalpel which comprises an ultrasonic scalpel handle, a shell, a transmission mechanism and a clamping force adjusting device, the transmission mechanism and the clamping force adjusting device are arranged in the shell, the ultrasonic scalpel handle is hinged to the shell, the clamping force adjusting device and the ultrasonic scalpel handle are arranged in a limiting mode, and a corresponding limiting mechanism is arranged on the ultrasonic scalpel handle; the clamping force adjusting device is adjusted to a proper gear, the ultrasonic scalpel handle rotates to drive the limiting mechanism to move to the clamping force adjusting device, namely, the limiting mechanism cannot continue to rotate, the rotating angle of the ultrasonic scalpel handle is limited, then the clamping force of the forceps head of the ultrasonic scalpel is adjusted, the clamping force of the ultrasonic scalpel is adjustable, medical staff can use the ultrasonic scalpel conveniently, and the working efficiency is improved. The cutting speed of the ultrasonic scalpel in use can be increased, the operation difficulty is reduced, the operation time is shortened, and the operation efficiency is improved.

The sheath installing mechanism for the scalpel assembling machine comprises a bracket, a pressing assembly located on one side of the bracket and a pushing-in assembly located on the other side of the bracket, a plurality of containing grooves are formed in the surface of the bracket at equal intervals, a scalpel handle is located at one end of each containing groove, and a scalpel sheath is located at the other end of each containing groove. The pressing assembly is located above the knife handle side of the containing groove, a lifting air cylinder is matched with a pressing block to press a knife handle, the pushing-in assembly is located on one side of a knife sheath, and a material pushing air cylinder is matched with a material pushing rod to push the knife sheath to the knife handle to achieve sheath installation. According to the automatic sheath loading device, automatic sheath loading is achieved through an automatic structure, and safety risks are reduced.

1. Name of the product in this design: Scalpel handle. 2. Application of this design: This design is used for the handle of a scalpel with adjustable angle and replaceable blade. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. If there is a magnified view from below, omit the bottom view; if there is a magnified view from above, omit the top view.

The utility model discloses an ultrasonic scalpel handle, and relates to the technical field of ultrasonic scalpels. The handle comprises a base, a movable plate is rotatably matched with the top of the base, two supporting plates are arranged at the top of the movable plate, sliding plates are slidably matched with the opposite sides of the two supporting plates, and a handle body is movably connected between the two sliding plates. A groove is formed in the top of the base, a telescopic rod is arranged at the bottom of the groove, the end, away from the groove, of the telescopic rod is in sliding fit with the moving plate, and an adjusting assembly matched with the moving plate is arranged in the base. Through the arranged adjusting assembly, the adjusting assembly can be adjusted to fix the moving plate, after the moving plate is fixed, the adjusting assembly can continue to be adjusted to lift the moving plate, after the adjusting assembly is adjusted to relieve fixing of the moving plate, the moving plate can be moved left and right or rotated, and the position of the handle body on the moving plate is adjusted; and the application range of the handle body is widened.

The invention relates to the technical field of intelligent recognition, in particular to an intelligent knife handle for a surgical robot, the tail of a knife handle seat is provided with a first connecting structure used for integrally mounting the knife handle at the execution end of the surgical robot, and the front of the knife handle seat is provided with a second connecting structure used for connecting a knife handle rod; the tail part of the cutter handle rod is detachably connected with the cutter handle seat through a second connecting structure; the front part of the cutter handle rod is provided with a mounting structure for connecting a cutter; the cutter is connected to the front end of the cutter handle rod through a mounting structure; an RFID identification device is mounted in one of the knife handle seat and the knife handle rod, and an RFID passive chip corresponding to basic information of a mounting base body of the knife handle seat or the knife handle rod is mounted in the other one of the knife handle seat and the knife handle rod; and the RFID identification device can communicate with the RFID passive chip and identify the RFID passive chip. The intelligent knife handle can achieve centralized knife management, accurate knife recording, tracking and life cycle management, can record the use frequency and the sterilization condition of the intelligent knife handle, and achieves data interaction with a corresponding control system.

A scalpel handle includes a receiving member to receive a blade therethrough and a main portion coupled to the receiving member. The main portion has a number of indentations on both a first surface and a second surface thereof. The indentations are evenly spaced between one another and the number of indentations extends from a first end proximate the receiving member along a first length of the main portion across an entire width thereof. The first length is at least two-thirds of a second length of an entirety of the main portion. The width of the main portion is at least five times a maximum width of the receiving member. A thickness of the main portion is at least 2.5 times a maximum thickness of the receiving member. All outer surfaces of the main portion including the first surface and the second surface are convex in shape around edges thereof.

The utility model relates to the technical field of medical instruments, and provides a die assembly for producing a scalpel handle. The die assembly for producing the scalpel handle comprises a device main body, a sliding block insert and a scalpel embedding part, wherein the device main body is provided with a mounting hole; the sliding block insert is detachably mounted in the mounting hole, the sliding block insert is provided with a knife handle head injection molding cavity and an insert mounting cavity, the knife handle head injection molding cavity and the insert mounting cavity are oppositely arranged, the sliding block insert is provided with a penetrating hole, and the penetrating hole is communicated with the knife handle head injection molding cavity and the insert mounting cavity; and the cutter embedding component is detachably mounted in the cutter embedding mounting cavity, and at least part of the cutter embedding component penetrates through the penetrating mounting hole and extends into the cutter handle head injection molding cavity. According to the mold assembly for producing the scalpel handle, through the detachable sliding block insert and the detachable cutter embedding part, when the cutter embedding part needs to be replaced, rapid disassembly and assembly can be achieved, and therefore the manufacturing cost of the scalpel handle is reduced, and the production efficiency is improved.

The utility model discloses a bending machine includes positioning mechanism, bending mechanism, and positioning mechanism includes the positioning groove for placing scalpel handle, the compacting block of compacting scalpel handle in the positioning groove, the compacting drive unit of drive compacting block moves up and down, and bending mechanism includes first bending axle, second bending axle and bending drive unit, first bending axle is located the side of positioning groove, bending drive unit is used for driving second bending axle rotation makes first bending axle and second bending axle respectively be located scalpel head both sides'scalpel head of misregistration bending, and the shortest distance between first bending axle and second bending axle can be adjusted relatively. When bending, can through the position of first bending axle or second bending axle is adjusted, makes the shortest distance of both change, thereby makes scalpel head bending different position, and through adjusting the rotation angle of second bending axle relative to first bending axle angle adjustment bending.