567 results about "Anastomosis coupler" patented technology

A high-performance near-pure zinc alloy, a preparation method therefor and a use thereof, relating to the technical field of zinc alloys. The alloy component is that the content of Zn is greater than or equal to 99.5%, and the remaining trace alloy elements include at least two of the following 14 elements: Mg, Mn, Li, Cu, Ag, Ca, Sr, Fe, Zr, Ti, Al, C, Ga, and Si. The alloy has the yield strength ≥ 250 MPa, the tensile strength ≥ 320 MPa, the elongation ≥ 25%, the mechanical property change during one year of room-temperature storage ≤ 5%, the maximum bending force ≥ 2 kN, the stress corrosion sensitivity factor ≤ 15%, the size of corrosion pits after 60 days of immersion ≤ 15 μm, and the standard deviation of the size of corrosion pits ≤ 3 μm. The alloy is suitable for the preparation of biodegradable stents, bone implant devices, medical staplers or anastomotic nails for intestines, blood vessels or nerves, vascular clamps, guided bone or tissue regeneration membranes, heart valve protheses, dura mater repair membranes, soluble bridge plugs and fracturing balls for oil drilling, zinc alloy die castings, electroplated zinc materials, building zinc materials, battery-grade zinc, printing-grade zinc, and zinc-based brazing alloys.

The disposable anastomat comprises a shell, a nail anvil, a nail bin and a knife pushing assembly, the nail anvil comprises a nail abutting seat, a nail abutting plate and a sliding piece, a knife feeding gap is formed between the nail abutting seat and the nail abutting plate, and the sliding piece is arranged in the knife feeding gap in a sliding mode. The near end of the nail abutting base is provided with a locking part which extends in the direction close to the nail abutting plate and has the elastic deformation capacity, and in the initial state, the sliding piece abuts against the locking part. The sliding part abuts against the locking part, so that the locking part deforms, the push-type broach assembly is not blocked, the push-type broach assembly can be normally triggered, after one-time triggering, due to the fact that the sliding part is pushed by the push-type broach assembly to be separated from the locking part and move to the far end, the locking part recovers and blocks the push-type broach assembly, and the push-type broach assembly can be normally triggered. Under the obstruction of the locking part, the push broach assembly cannot be triggered again, and the locking part and the sliding piece in the anastomat are simple in design, wider in applicability and capable of effectively preventing secondary triggering.

The utility model discloses a hand-operated wrench assembly, a hand-operated knife return device and an electric anastomat, the hand-operated wrench assembly comprises a hand-operated wrench handle, a hand-operated wrench shaft sleeve and a hand-operated wrench rotating shaft, and the hand-operated knife return device comprises a hand-operated wrench assembly, a knife return gear shaft, a knife return transmission gear, a motor gear and a rack. The tool retracting gear shaft and the tool retracting transmission gear can be driven to move upwards by rotating the manual wrench assembly, the tool retracting transmission gear is separated from the motor gear, the rack can be driven to retract through the tool retracting transmission gear by continuously rotating the manual wrench assembly, manual tool retracting is achieved, and the electric anastomat comprises a manual tool returning device. By means of the mode, when the electric gear is rotated upwards through the lower half section of the wrench assembly, the middle section of the wrench is kept static, the tool retracting transmission gear can be easily pulled out, the wrench is further used as a torsion input tool after being pulled out, manual tool retracting is achieved, operation difficulty and failure risks are reduced, large torque is generated with small force, and the tool retracting transmission gear can be pulled out easily. And rapid manual tool retracting is achieved.

The invention relates to the technical field of medical instruments, and provides a control method and a control system of an electric anastomat, and the control method comprises the following steps: executing a self-checking instruction; triggering the cutting knife to trigger the switch; detecting a motor operation rotating speed, a motor operation current and a motor operation voltage for driving the cutting knife in real time; calculating a motor operation torque according to the motor operation rotating speed, the motor operation current and the motor operation voltage; the cutting difficulty degree is judged according to the motor operation torque; and according to the cutting difficulty degree, the operation rotating speed of the motor is controlled. According to the control method of the electric anastomat, by setting the self-checking mode and indirectly calculating the running torque, the technical problems of high equipment production cost and high use cost are solved, and meanwhile it can be ensured that bleeding is reduced.

The utility model provides an emergency rollback operation assembly, an emergency rollback device and an electric anastomat, and the emergency rollback operation assembly comprises a first operation piece which comprises a first pivoting part and a first operation part; the second operation piece comprises a second pivot joint part, a second operation part and a rollback driving part, and the second pivot joint part is rotatably connected with the first pivot joint part so that the operation assembly can be switched between the folded state and the unfolded state; when the operation assembly is in the unfolding state, the first operation part and the second operation part are located on the two sides of the rollback driving part respectively. The emergency rollback operation assembly can be stored in the storage state to reduce the occupied space, the emergency rollback action of the electric anastomat can be driven when the emergency rollback operation assembly is unfolded, the two operation parts are located on the two sides of the rollback driving part respectively during operation, the acting force applied during rollback operation can be balanced and saved, the structure is simple, and use is convenient.

The invention discloses a titanium nail assembling device, and relates to the field of medical instrument production. The mechanism comprises an anastomat carrier provided with an anastomat, a moving mechanism used for finely adjusting the position of the carrier, a plurality of sets of feeding and assembling clamping jaws and a multi-jaw opening and closing mechanism integrating a cam transmission assembly and a press-fitting assembly. The cam transmission assembly converts up-and-down movement of the Z-axis driving mechanism into synchronous opening and closing actions of the multiple sets of clamping jaws through cooperation of an installation frame body, symmetrical cam opening and clamping blocks, special-shaped guide through grooves in the symmetrical cam opening and clamping blocks, first idler wheels, sliding pins, guide sliding blocks and springs. The press-fitting assembly drives a strip-shaped pressing needle through a pressing air cylinder, synchronous pressing is conducted when the clamping jaw clamps the titanium nail, and precise assembling is completed. Synchronous taking and placing, accurate positioning and cooperative press fitting of multiple sets of titanium nails are achieved, the problems of low efficiency and poor consistency caused by single-claw sequential operation in the prior art are solved, and the automation level, the assembly precision and the production efficiency of anastomat titanium nail assembly are remarkably improved.

The invention relates to the technical field of medical instrument research and medical safety devices, in particular to an over-thick tissue percussion prevention type anastomat based on secondary percussion prevention and a method. An over-thick tissue percussion prevention type anastomat based on secondary percussion prevention comprises a nail bin assembly which comprises a nail abutting base and a nail bin base used for installing a nail bin with a nail pushing sliding block, and a safety boss and a first elastic piece are arranged on the side, close to the nail bin base, of the nail abutting base; the percussion assembly comprises a cutting knife which is pressed down under the elastic force action of a first elastic piece, and the cutting knife is provided with a first guide boss and an unlocking part; when the nail abutting base and the nail bin base are closed and the cutting knife is pressed downwards, the moving path of the first guide boss passes through the safety boss. And the unlocking part is propped by the nail pushing slide block so as to lift and release the cutting knife. According to the scheme, secondary percussion of a used nail bin and mistaken percussion caused by too thick tissue or insufficient closing of a nail bin assembly can be avoided, and safety and reliability of an anastomosis operation are improved.

The invention provides an anastomotic stoma reinforcing device as well as a preparation method and application thereof. The anastomotic stoma reinforcing device comprises a reinforcing material layer, a connecting material layer and a release film which are sequentially stacked, wherein the connecting material layer comprises a hydrophobic adhesive layer, a carrier layer and a waterproof adhesive layer which are sequentially stacked, and the hydrophobic adhesive layer is in contact with the reinforcing material layer. When the anastomotic stoma reinforcing device is used, the release film of the anastomotic stoma reinforcing device is peeled off, the reinforcing material layer can be fixed to the nail bin face and / or the nail anvil face of an anastomat by means of the waterproof glue layer, due to the fact that the reinforcing material layer has hygroscopicity and can be completely wetted after making contact with liquid on the tissue surface, the reinforcing material layer and the hydrophobic glue layer are separated, and therefore the anastomotic stoma is reinforced. However, the material of the anastomat does not absorb moisture, the connecting material layer is still firmly adhered to the anastomat and is not easy to separate, and when the anastomat is taken out, the connecting material layer is taken out along with the anastomat, so that the problems of slow postoperative recovery and the like caused by connecting material residues are avoided.

An anastomotic coupler is provided. A ring is aligned with a cartridge in that at least a portion of the cartridge is disposed within a lumen of the first tubular structure and the ring is positioned external of the first tubular structure. The cartridge is operable to engage with the ring to secure the ring and the cartridge with the first tubular structure and allow a lumen of a second tubular structure to be in fluid communication with the lumen of the first tubular structure via a hole formed in a wall of the first tubular structure.

The invention provides an anastomat body and an anastomat. The anastomat body comprises a first gear, a rotating head, a second gear and a power assembly. The first gear includes a first tooth portion. The second gear includes a second tooth portion engaged with the first tooth portion. The rotating head is connected with the nail bin assembly. The staple cartridge assembly comprises a jaw and a cutting knife. The power assembly drives the first gear to rotate, and the first gear drives the second gear to rotate. The rotating head defines a containing space, and at least part of the second gear is located in the containing space and connected with the rotating head so as to drive the rotating head to rotate. The rotating head drives the nail bin assembly to circumferentially rotate around the center shaft of the nail bin assembly. Circumferential rotation of the nail bin assembly is controlled in an electric mode, operation is convenient, and the operation precision and efficiency of an operation are improved.

The utility model discloses a powerful cutting anastomat machining tool which comprises a bottom plate, a connecting block is arranged on the outer side of the bottom plate, the powerful cutting anastomat machining tool further comprises a limiting block arranged in the bottom plate, and a connecting block is arranged on the outer side of a supporting column. The positioning assembly is arranged at the upper end of the supporting column, and a protective seat is arranged on the upper side of the bottom plate; and the arched door is arranged at the upper end of the bottom plate, a protective block is installed at the lower end of an electric telescopic rod, a driving rod is connected to the front end of a first motor, and a protective cover is installed at the lower end of the driving block. According to the machining tool of the powerful cutting anastomat, the positioning assembly and the steel pipe body are additionally arranged, so that the steel pipe body is limited in the circular space formed by the first positioning block and the second positioning block, and compared with the traditional technology, the machining tool has the function of positioning the machined steel pipe by the powerful cutting anastomat; the machining tool of the powerful cutting anastomat can conduct anastomotic cutting on the steel pipe.

The utility model provides a triggering mechanism, a percussion assembly and an electric anastomat, the triggering mechanism comprises a first switch and a second switch, the first switch and the second switch are located on the two transverse sides of the axis of the electric anastomat respectively, the first switch is configured to start an actuating mechanism of the electric anastomat to move in the far-end direction when triggered, and the second switch is configured to start the actuating mechanism of the electric anastomat to move in the far-end direction when triggered; the second switch is configured to start an actuating mechanism of the electric anastomat to move towards the near end when being triggered; the handle component comprises a first driving part and a second driving part; a first trigger member and a second trigger member; when the first driving part is driven to move along a first direction, the first triggering piece is driven to move, so that the first triggering piece triggers the first switch; and when the second driving part is driven to move along a second direction, the second triggering piece is driven to move, so that the second triggering piece triggers the second switch. According to the electric anastomat, misoperation of the electric anastomat is effectively reduced.

The present disclosure provides an anastomotic reinforcement patch, comprising: a backing, end caps, a patch, suture lines, and traction lines. The backing has a first surface and a second surface facing away from each other in the thickness direction, and the backing is configured as an arc-shaped structure. A first end and a second end with opposite directions are provided in the extending direction of the arc-shaped structure, and the backing is used for assembling an arc-shaped stapler; the patch has an arc-shaped structure, is disposed on the first surface, and is detachably connected to the backing; the end caps are disposed on the first surface of the backing and are used for restricting the connection between the anastomotic reinforcement patch and the arc-shaped stapler; the suture lines are disposed on the backing and are used for suturing the backing to the patch and the end caps, and the suture lines are arranged as a closed loop on the backing; the traction lines are sleeved on the suture lines near the second end, and when an external force acts on the traction lines, the traction lines are dragged to drive the separation of the suture lines from the backing.

The invention relates to the technical field of medical instruments, in particular to a limiting mechanism of an eversion anastomat, a connecting mechanism is mounted on an anastomat body, a nail bin mechanism is mounted on the connecting mechanism in a sliding manner, a cutting blade is mounted on the nail bin mechanism in a sliding manner, the connecting mechanism transmits torque through the anastomat body, and the cutting blade is mounted on the connecting mechanism in a sliding manner. The stapler body is used for driving the cutting blade to rotate to drive the cutting blade to deflect, the cutting blade is driven and pushed through the stapler body to cut redundant tissue, the staple cartridge mechanism is used for limiting the cutting blade and preventing the cutting blade from deflecting in the advancing process, the staple cartridge mechanism comprises a staple cartridge seat, and the staple cartridge seat plays a role in limiting the cutting blade. A limiting groove is formed in the nail bin mechanism, and the limiting groove fixes the nail bin seat by limiting the movement of the nail bin mechanism in the axial direction; according to the invention, the problem of how to keep the cutting blade to stably advance in the anastomosis process is solved.

The utility model discloses an automatic assembly device of anastomat sleeve, including processing platform, the both sides symmetry of processing platform top is equipped with moving frame, two moving frame top all are equipped with limit component, the utility model has the beneficial effect that through the cooperation of external spring type telescopic link in limit component and rubber resistance block, can provide stable clamping force, can also adapt to different specifications sleeve, combines telescopic guide rod, slide bar etc.

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 utility model relates to a device for preventing empty percussion of a surgical instrument, which comprises an anastomat body and a nail abutting seat assembly arranged at a front end opening of the anastomat body, the nail abutting seat assembly comprises an anvil head used for forming anastomosis nails and a connecting shaft sleeve arranged on the rear side of the anvil head, an infrared detection device is arranged in the anastomat body, and the connecting shaft sleeve is arranged on the rear side of the anvil head. The infrared detection device is connected with a control circuit of the anastomat body, an infrared transceiver is arranged on the infrared detection device, and when the infrared transceiver receives reflected infrared rays, the control circuit disconnects the drive motor circuit; and when the infrared transceiver cannot receive the reflected infrared rays, the control circuit closes the driving motor circuit. The electric anastomat has the advantages that the coating capable of absorbing infrared rays is arranged on the outer wall of the connecting shaft sleeve, the light source of the infrared transceiver and the signal receiver are arranged in the anastomat body, whether the anvil block head is installed in place or not can be detected under the condition that the strength and the function of the structure are not affected, and mistaken percussion operation of the electric anastomat is prevented.

The application provides an electric endoscope anastomat, and relates to the technical field of cutting anastomosers.The device comprises a support, and further comprises: a jaw turning transmission mechanism, which is installed on the support and is driven by a main motor; a cutting knife feeding transmission mechanism, which is installed on the support and is in transmission connection with the jaw turning transmission mechanism; and a rack locking mechanism, which is installed between the jaw turning transmission mechanism and the cutting knife feeding transmission mechanism, and the jaw turning transmission mechanism and the cutting knife feeding transmission mechanism are sequentially driven through the rack locking mechanism. The application can realize the functions of jaw turning and cutting knife advancing / retracting through the driving of only one set of main motor, and the overall structure is simple and reliable.

The utility model provides a bending mechanism and an anastomat. The bending mechanism comprises a knob shell, a transmission assembly, a steering assembly and a locking assembly. The knob shell is rotationally connected with an operation knob, and a mounting cavity is formed in the knob shell; the transmission assembly comprises a rotating shaft, a driving gear, a first sliding rack and a transmission pull rod, one end of the rotating shaft is connected with the operation knob, the other end of the rotating shaft is connected with the driving gear, the first sliding rack is slidably arranged in the mounting cavity and is in transmission meshing with the driving gear, one end of the transmission pull rod is connected with the first sliding rack, and the other end of the transmission pull rod penetrates out of the mounting cavity; the steering assembly comprises a second sliding rack and a steering gear, the second sliding rack is connected with the transmission pull rod, and the steering gear is in transmission engagement with the second sliding rack; the locking assembly is used for locking rotation of the driving gear. According to the bending mechanism and the anastomat, the executing end of the anastomat can be bent, the goodness of fit between the executing end of the anastomat and a focus is increased, and the anastomat is suitable for more application environments.

The invention discloses a novel structure for preventing a cutting assembly from shaking. The novel structure comprises a driving assembly, the cutting assembly rotationally connected with the driving assembly and a damping structure arranged on the driving assembly. The damping structure comprises an inserting groove formed in the driving positioning rod, a limiting piece installed in the inserting groove and a rough surface arranged on the outer surface of the first driving rod, the limiting piece makes contact with the rough surface to generate constant friction damping, and stable damping is provided after the cutting assembly and the driving assembly rotate to preset positions so as to restrain shaking and ensure accurate positioning; a first driving rod and a second driving rod are arranged in the driving assembly and are respectively meshed with a first rotating part and a second rotating part of the cutting assembly through connecting rods to realize multi-angle adjustment; on the premise that complex parts are not added, friction formed by the rough texture and the silica gel limiting piece is utilized, the positioning and resetting reliability of the cutting assembly is remarkably improved, the manufacturing process is simplified, the cost is reduced, and the safety and accuracy of surgical operation of the endoscope anastomat are enhanced.

1. The name of the design product: wound anastomat. 2. The use of the design product: for wound dressing and suture. 3. The design points of the design product: in the combination of shape and pattern. 4. The picture or photo that best shows the design points: design 1 perspective view. 5. Other circumstances that need to be explained: design 1 is the basic design.

The utility model provides a tubular anastomat, and relates to the technical field of medical instruments. The tubular anastomat comprises an anastomosis assembly, an osculating assembly and a connecting assembly, a first anastomosis piece in the anastomosis assembly is arranged on the inner side of a second anastomosis piece, a leakage-proof barrel is arranged on the inner side of the first anastomosis piece, and the near end of the leakage-proof barrel extends out of the near end of the first anastomosis piece; a first osculating piece in the osculating assembly is arranged on the inner side of a second osculating piece, and part of the connecting assembly can be limited to the osculating assembly. The osculating assembly is pushed in the direction close to the anastomosis assembly, so that the osculating assembly is arranged at the near end of the leakage-proof cylinder in a sleeving manner, and the other part of the connecting assembly is connected to the anastomosis assembly in a limiting manner, so that the first intestinal tract and the second intestinal tract are anastomosed between the anastomosis assembly and the osculating assembly. According to the tubular anastomat, the anastomosis effect can be improved, and the probability that the first intestinal tract and the second intestinal tract are broken due to separation between the anastomosis assembly and the osculating assembly is reduced; meanwhile, the leakage-proof effect is improved, and the risk of anastomotic stoma leakage is reduced.

The utility model discloses an anastomat anastomosis nail independent gasket which comprises nail foot fixing pieces, foot connecting pieces, a ring piece and a fixing sleeve, a plurality of foot connecting pieces are distributed on the edge of the ring piece, the outer end of each foot connecting piece is integrally connected with the nail foot fixing piece, each nail foot fixing piece is provided with a suturing nail, and the nail foot fixing pieces are fixedly connected with the fixing sleeve. The nail foot fixing pieces are mutually independent, and one side of the ring piece is integrally connected with a fixing sleeve. The nail foot fixing device is reasonable in design, each nail foot fixing piece distributed on the ring piece is a nailing part of a suturing nail, the pain intensity caused by interlocking connection and dragging between the nail foot fixing pieces in the dismounting process is effectively reduced, meanwhile, the width of the foot connecting pieces located between the nail foot fixing pieces and the ring piece is small, and the nail foot fixing pieces are not prone to falling off. And the time required for decomposition and separation is relatively shortened, and the adhesion surface with the skin tissue is reduced.

This utility model discloses an anti-accidental activation structure for a stapler, including a stapler body and a cutting blade disposed within the stapler body; a protective lock is rotatably mounted at the tail end of the stapler body; a limiting mechanism is provided on the inner side of the protective lock to limit the tail end of the cutting blade; an anti-rotation mechanism is provided on the protective lock to lock the stapler body; and a reset mechanism is provided between the protective lock and the stapler body for resetting the protective lock after accidental activation. The protective lock, limiting mechanism, anti-rotation mechanism, and reset mechanism of this utility model work together to form a three-layer anti-accidental activation protection; the limiting mechanism directly locks the cutting blade position to prevent accidental activation; the anti-rotation mechanism ensures the protective lock is stably locked; and the reset mechanism automatically restores the protective lock to its initial position after accidental activation, thereby avoiding damage to the stapler due to misalignment of the protective structure after docking with the instrument.

The utility model provides a haemorrhoids loop ligature anastomat with a limiting structure, and belongs to the technical field of anastomats. The haemorrhoids loop ligature anastomat with the limiting structure comprises a haemorrhoids loop ligature anastomat part and a limiting assembly. The ligation tube part is mounted at the front end of the handle part; the top ends of the two arc-shaped clamping plates are both fixedly connected with lug plates, a rotating shaft is arranged between the two lug plates in a rotating mode, the rotating shaft is sleeved with a spring piece, the extending end of the spring piece makes contact with and abuts against the opposite faces of the two lug plates, and the two arc-shaped clamping plates are detachably arranged on the outer side of the ligation tube part in a clamped mode. Under the action of an arc-shaped clamping plate, an ear plate and a spring piece, the ligation tube part can be limited, so that an operator can find that the ligation tube part moves towards the interior of the anus or slides towards the exterior of the anus in time during operation, remedy can be carried out, and the error rate of an operation is reduced.

According to the anastomat with the self-detection function, a main body of the anastomat is the anastomat, and a linkage assembly, a motor, a rotating unit, a self-detection control module, a switching assembly, a power module and a trigger are arranged in a percussion handle of the anastomat; the anastomat comprises a standby mode, a self-checking mode and a percussion mode. In a standby mode, the motor is disconnected from the power supply module; when the power supply module is powered on to supply power to the motor, the anastomat enters a self-checking mode from a standby mode: the switching assembly is controlled to realize connection of the rotating unit and the linkage assembly, and the anastomat enters an excitation mode from the self-checking mode. Whether a product can work normally or not can be automatically detected at the beginning of equipment electrification, after detection is completed, pouch beating can be conducted through mode switching, whether an instrument is bad or not is detected in advance, whether the instrument can be used for operation or not is judged, and then the risk is reduced.

The utility model discloses an anastomat cutting knife detection device which comprises a vertical driving assembly, a transverse driving assembly, a cutting knife testing assembly and a suture line clamp, the cutting knife testing assembly comprises a pressure sensor and a connector unit used for installing an anastomat cutting knife, and the connector unit is assembled at the lifting end of the vertical driving assembly. The suture line clamp comprises a balancing weight, a plurality of threading columns for a suture line to penetrate through and a pressing driver for pressing the suture line, and the transverse driving assembly drives the suture line clamp to move, so that one threading column corresponds to the connector unit; the vertical driving assembly drives the anastomat cutting knife on the connector unit to cut the suture line on the suture line clamp, and the cutting force borne by the anastomat cutting knife is measured through the pressure sensor, so that a manual detection mode can be replaced, and the sharpness performance of the anastomat cutting knife can be accurately, conveniently and reliably detected.

The utility model belongs to the field of anastomats, and particularly relates to an anorectal anastomat with a lighting function. The anorectal anastomat comprises an anorectal anastomat body, a plurality of mounting grooves are formed in the outer side wall of a center rod of the anorectal anastomat body in the circumferential direction of the anorectal anastomat body, a plurality of illuminating lamps are mounted in each mounting groove, a plurality of light shielding plates are fixed in each mounting groove, and connecting grooves are formed in the outer side wall of the center rod in the circumferential direction of the center rod. Transparent isolating layers are arranged in all the mounting grooves and the connecting grooves, and a connecting assembly is arranged on the anorectal anastomat body. During an operation, when the central rod completely extends out of the handle and is inserted into the anus of a patient, the connecting assembly enables all the illuminating lamps to be electrically connected with the power supply, so that the power supply provides electric energy for each illuminating lamp, the illuminating lamps can illuminate an operation area in the anus, the visual definition of a doctor during the operation is improved, an external illuminating device is not needed, and the operation is convenient. A doctor can have a larger activity space, and the surgical operation can be more convenient and flexible.