CN112617975A - Novel ligation anastomat capable of automatically tightening and cutting elastic thread - Google Patents

Abstract

The invention relates to the technical field of medical instruments, and particularly discloses a novel ligation anastomat capable of automatically tightening and cutting elastic threads, which comprises a ligation mechanism, a thread tightening structure, a thread cutting structure and a handle, wherein the thread tightening structure drives a component and an elastic thread component; the wire cutting structure comprises a triggering assembly and a cutting knife assembly, wherein the triggering assembly comprises an electromagnet, an electromagnet plug and a wire cutting switch for controlling the electromagnet to act; this design relies on the motor to drive lead screw and elastic wire and realizes automatic function of tightening up to usable sensor real-time supervision elastic wire tightens up length, and in addition, the electro-magnet promotes the automatic wire cutting of blade more thoroughly rapidly.

Description

Novel ligation anastomat capable of automatically tightening and cutting elastic thread

Technical Field

The invention relates to the technical field of medical instruments, in particular to a novel ligation anastomat capable of automatically tightening and cutting elastic wires.

Background

The anorectal negative pressure ligation device commonly used in the market needs to be tightened manually by experience, and finally, elastic threads are cut off by using a pair of scissors; part of products realize the effect of tightening elastic wires through a spring and gear mechanism; also some products pass through blade (mechanical promotion) or hot melt and realize the effect of tailorring of elastic thread, exist and tailor the rapid thorough scheduling problem inadequately, need manual regulation to the tightening function of elastic thread, efficiency is lower and do not have accurate assurance to the volume of tightening up.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a novel ligation anastomat capable of automatically tightening and cutting elastic wires.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a novel ligation anastomat capable of automatically tightening and cutting elastic wires comprises a handle, a ligation mechanism arranged on the handle, a firing mechanism used for firing the ligation mechanism, a suction mechanism used for providing negative pressure for the ligation mechanism, a wire tightening mechanism used for tightening the elastic wires and a wire cutting mechanism used for cutting the elastic wires, wherein the ligation mechanism is detachably connected with the handle;

the wire cutting mechanism comprises a triggering assembly and a cutting knife assembly, the triggering assembly comprises an electromagnet and a control wire cutting switch, the electromagnet acts, and the electromagnet drives the cutting knife assembly to perform cutting action.

Further, the firing mechanism comprises a lever structure and a pushing assembly, the lever structure comprises a pushing lever, a lever resistance end and a lever power end, the pushing lever is located between the lever resistance end and the lever power end, the firing mechanism further comprises a firing key and an extension pipe plug, the firing key is in contact with the lever power end, the lever resistance end is in contact with the extension pipe plug, and the firing key is pressed to toggle the lever power end so as to drive the lever resistance end to move;

the pushing assembly comprises a pushing piece, a pushing seat, an extension pipe plug, a pushing piece extension pipe, an extension pipe channel and a pushing piece round hole, wherein the extension pipe channel and the pushing piece round hole are sleeved outside the pushing piece extension pipe, the pushing piece is connected with one end of the pushing seat in a sliding mode, one end of the pushing piece extension pipe is connected with the extension pipe plug, the other end of the pushing piece extension pipe is connected with the pushing piece, and the pushing piece is connected with the.

The pushing seat is hollow, the pushing part is communicated with the pushing seat, the end, far away from the pushing seat, of the pushing part is provided with a pushing seat opening end, the pushing seat further comprises a first sealing gasket, and the first sealing gasket is arranged inside the pushing seat.

Further, the suction mechanism comprises a first vent pipe, a second vent pipe, a third vent pipe, a fourth vent pipe and a fifth vent pipe, one end of the first vent pipe is connected to the PCB main board, the other end of the first vent pipe is connected with the T-shaped tee, one end of the second vent pipe is connected with the T-shaped tee, the other end of the second vent pipe is connected with a vent pipe joint on the pushing seat, one end of the third vent pipe is connected with the T-shaped tee, the other end of the third vent pipe is connected with the pressure relief assembly, one end of the fourth vent pipe is connected with the pressure relief assembly, the other end of the fourth vent pipe is connected with the negative pressure pump, one end of the fifth vent pipe is connected with the negative pressure pump, the other end of.

Further, the handle is equipped with the thimble assembly who draws the disease kitchen body outward, thimble assembly includes that interior lumen pipe and inner chamber tube head and cover are located the outside promotion pipe of interior lumen pipe, interior lumen pipe one end passes through the filter with the inner chamber tube head and is connected, the inner chamber pipe other end is equipped with interior lumen suction nozzle, the one end of propelling movement pipe is equipped with the propelling movement tube head, cooperates in order to promote the pipe lock to interior lumen overhead with the promotion cover stopper that interior lumen tube head tail was equipped with through the propelling movement pipe buckle that the pipe was equipped with, the overhead first buckle that is equipped with of inner chamber pipe for left shell lock position on the lock joint left hand handle shell and the right shell lock position on the right hand handle shell, first buckle extends to form presses the splenium, and still is equipped with the second buckle that is used for spacing promotion cover stopper.

Further, still include grafting portion, grafting portion passes the promotion seat end and offsets with first sealed the pad.

Further, the cutting knife assembly comprises a blade, the blade is fixed to one end of the blade support, the other end of the blade support is connected with a push pipe head, a push pipe head pushing platform is arranged at the bottom of the push pipe head, a spring is sleeved on the push pipe, the blade is installed in a blade bin arranged on the upper portion of the push pipe, and the push pipe is installed in a push pipe bin arranged on the upper portion of the push pipe.

Further, the tightening mechanism still includes the elastic thread subassembly, the elastic thread subassembly includes that elastic thread and hanging wire collude, and the elastic thread passes in proper order hanging wire colludes, hanging wire colludes the string hole and the blade hammering block face that are equipped with on the hanging wire colludes, still including being used for buckle coupling nut to hang the string line hook head in hole and fixing the spacing card of hanging wire hook head, be equipped with the line catching groove with hanging wire hook head looks lock on the spacing card.

The battery cover is arranged at an opening of the battery bin, the battery clamping tongue is arranged ON the battery cover, an opening mark ON and a closing mark OFF of the battery clamping tongue are arranged ON the battery cover, and a clamping position and a clamping tongue buckling position connected with the clamping buckle of the clamping buckle are arranged ON the battery clamping tongue.

Furthermore, a front position sensor and a rear position sensor which are used for monitoring the walking distance of the screw rod nut are arranged on the left handle shell, and the front position sensor and the rear position sensor are respectively positioned at the front end and the rear end of the screw rod.

Further, the negative pressure pump mechanism is detachably connected with the handle.

Further, still include warning/alarm device, warning/alarm device includes loudspeaker, loudspeaker and PCB mainboard connection, just loudspeaker outside is equipped with waterproof sound-permeable membrane.

Compared with the prior art, the invention has the following beneficial effects:

1. the electric tightening of the elastic wire is realized through the arrangement of the wire tightening mechanism for tightening the elastic wire, and the electric tightening can be started and suspended at any time;

2. the line cutting mechanism firing assembly adopts an electromagnet ejection device, so that the elastic line can be cut more quickly and thoroughly;

3. the batteries are detachably connected, and the danger coefficient of charging can be reduced by detaching and charging the batteries independently;

4. the consumable and the product are in a separated buckling type design, so that the disassembly is convenient;

5. the outer keys of the product are protected by silica gel, and the machine body can be wiped by alcohol, so that the cost is reduced and the risk of cross infection is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is one of the external structural schematic diagrams of the present invention.

FIG. 2 is a second external structural diagram of the present invention.

Fig. 3 is one of the schematic perspective views of the inside of the handle of the present invention.

Fig. 4 is an exploded view of the tube structure of the ligation mechanism of the present invention.

Fig. 5 is a second perspective view of the interior of the handle of the present invention.

Fig. 6 is a partially enlarged schematic view at a in fig. 3.

FIG. 7 is a schematic view of the fixing structure of the handle and the battery of the present invention.

Fig. 8 is an enlarged view of the sensor area of the present invention.

Fig. 9 is an enlarged view of the negative pressure pump region of the present invention.

Fig. 10 is a disassembled view of fig. 9 of the present invention.

In the figure: 11. the left handle shell, 111, the left shell buckling position, 12, the right handle shell, 121, the right shell buckling position, 122, the clamping tongue buckling position and 13, a switch/wire cutting key; 14. the keycap is triggered, 15, the line tightening key is triggered, and 16, the pressure relief key is triggered; 17. an electromagnet plug; 18. the lead screw nut 181, the nut hanging hole 19, the PCB mainboard 20, the electromagnet; 21. an inner lumen, 211. an inner lumen suction nozzle; 22. the inner cavity pipe head, 221, the inserting part, 222, the first buckle, 223, the pressing part, 224 and the second buckle; 23. a filter; 24. pusher tube, 241, blade cartridge, 242, pusher cartridge, 243, pusher tube snap; 25. a tube pushing head 251, a tube pushing head pushing table 26, a spring; 27. pushing the tube; 28. a blade; 29 blade support, 30 push tube storehouse cover; 31. a limit clamp 311, a wire hook groove; 32. a wire hook 321, a wire hook head 322, a wire hanging hole 33, a blade bin cover 331 and a blade anvil plate surface; 34. elastic threads; 35. the wire hanging device comprises a wire hanging hook sheath, 351, a sheath baffle, 36, a pushing sleeve limiting block, 37, a pushing seat, 371, a vent pipe joint, 372, an extension pipe channel, 373, a pushing seat spring column, 374, a pushing seat port end, 38, a pushing piece, 381, a pushing piece head, 382, a pushing piece spring column, 383, a pushing piece round hole and 39, an extension spring; 40. a pushing piece extending pipe, 41, an extending pipe plug; 42. a first gasket; 43. the touch screen comprises a push lever, 431, a lever resistance end, 432, a lever power end, 44, a trigger key, 45, a display screen panel, 451, panel gum, 46, a display screen bracket, 47, a display screen and 471, an FPC (flexible printed circuit) flat cable; 48. speed reducing motor, 49, motor sheath; 50. a bearing, 51, a rear position sensor, 52, a screw rod, 53, a front position sensor and 54, a T-shaped tee joint; 55. a first vent pipe, 56, a second vent pipe, 57, a third vent pipe, 58, a pressure relief assembly, 59, a fourth vent pipe; 60. a negative pressure pump 61, a negative pressure pump sheath 62, a fifth ventilation pipe; 63. a housing rear connector; 64. a front connecting piece of the shell, 641 avoidance holes, 65 elastic piece PCB boards, 66 special-shaped foot pads, 67 duckbill valves, 68 fifth ventilation pipe connectors and 69 battery clamping tongues; 691. the vacuum pump comprises a clamping position, a battery cover 70, a battery chamber 71, a loudspeaker 72, a loudspeaker 73, a waterproof sound-transmitting membrane 74, a silica gel plug-I, a silica gel plug-II, a silica gel plug-III, a silica gel plug-IV, a magnet 78, a clamping position 112, a clamping table top 711, a negative pressure pump protective shell 79, a clamping buckle 791, a ventilation channel 792, a second sealing gasket 80, a negative pressure connector 81.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 10, the invention provides a novel ligation anastomat capable of automatically tightening and cutting elastic wires, which comprises a handle and a ligation mechanism arranged on the handle, wherein the ligation mechanism is detachably connected with the handle, a firing mechanism for firing the ligation mechanism and an attraction mechanism for providing negative pressure for the ligation mechanism are arranged in the handle, and the handle comprises a left handle shell 11 and a right handle shell 12.

The elastic wire cutting machine further comprises a wire tightening mechanism for tightening the elastic wire and a wire cutting mechanism for cutting the elastic wire, wherein the wire tightening mechanism comprises a driving assembly, the driving assembly comprises a lead screw 52 and a speed reducing motor 48 for driving the lead screw 52 to rotate, the lead screw 52 is in threaded fit with a lead screw nut 18, and the lead screw nut 18 is provided with a nut hanging wire hole 181 for hanging the elastic wire; wherein, the screw rod 52 is matched and connected with the main shaft of the speed reducing motor 48.

The wire cutting mechanism comprises a triggering assembly and a cutting knife assembly, the triggering assembly comprises an electromagnet 20 and a wire cutting switch for controlling the electromagnet 20 to act, and the electromagnet 20 drives the cutting knife assembly to perform cutting action. Preferably, the electromagnet 20 is connected with an electromagnet plug 17 for preventing the electromagnet 20 from leaking and static electricity.

The electromagnetic switch also comprises a PCB mainboard 19, wherein the electromagnet 20 is connected with the PCB mainboard 19 through a 2pin interface, and the PCB mainboard is used for switching on a power supply, supplying power, controlling switching/cutting wires and realizing the functions of switching on and switching off and cutting wires; and the tightening key is controlled to realize the motor tightening function, open the display, control the loudspeaker and control the alarm sound. The outside of the handle is also provided with a switch/wire cutting button 13, when the switch/wire cutting button 13 is pressed down, the electromagnet 20 is instantly pushed out, and after the switch/wire cutting button 13 is loosened, the electromagnet 20 is restored to the original state.

The novel loudspeaker is characterized by further comprising a warning/alarming device, wherein the warning/alarming device comprises a loudspeaker 72, the loudspeaker 72 is connected with the PCB main board 19, and a waterproof sound-transmitting membrane 73 is arranged outside the loudspeaker 72.

Specifically, as shown in fig. 3, the rear case connecting piece 63 is mounted on the left handle case 11 after being mounted with a limiting spring ball, the front case connecting piece 64 is mounted on the left handle case 11 after being mounted with the spring plate PCB 65, and a lead on the spring plate PCB 65 is connected to the PCB main board 19; the left handle shell 11, the switch/wire cutting key 13, the wire tightening key 15 and the pressure relief key 16 are formed by a double-material injection molding process; the loudspeaker 72 is fixed on the right handle shell 12, the lead of the loudspeaker 72 is connected to the PCB mainboard 19 firstly, then the alarm prompting effect is achieved, the right handle shell 12 is closed and then fixed through screws, and the waterproof sound-transmitting film 73 is arranged on the handle shell outside the loudspeaker 72, so that the waterproof sound-transmitting film is waterproof and does not block sound transmission. Then, a silica gel plug-I74, a silica gel plug-II 75, a silica gel plug-III 76 and a silica gel plug-IV 77 are sequentially arranged on the handle shell, can play a role in water prevention and the like and are used for protecting keys on the handle; and assembling the firing key cap 14 and the display screen panel 45, wherein the firing key cap 14 is an external triggering part of the firing key 44.

On the basis of the above embodiment, the firing mechanism comprises a lever structure and a pushing assembly, wherein the lever structure comprises a pushing lever 43, a lever resistance end 431 and a lever power end 432; the pushing lever 43 is located at the lever resistance end 431 and the lever power end 432 for quality inspection, and further comprises a firing key 44 and an extension pipe plug 41, the firing key 44 is in contact with the lever power end 432, the lever resistance end 431 is in contact with the extension pipe plug 41, and the firing key 44 is pressed to toggle the lever power end 432 so as to drive the lever resistance end 431 to move.

The pushing assembly comprises a pushing piece 38, a pushing seat 37, an extension pipe plug 41, a pushing piece extension pipe 40, an extension pipe channel 372 sleeved outside the pushing piece extension pipe 40 and a pushing piece round hole 383, wherein the pushing piece 38 is connected with one end of the pushing seat 37 in a sliding mode, one end of the pushing piece extension pipe 40 is connected with the extension pipe plug 41, and the other end of the pushing piece extension pipe 40 is connected with the pushing piece 38; and the end of the pushing member 38 away from the pushing seat 37 is provided with a pushing member head 381, and the pushing member 38 is connected with the resistance end.

On the basis of the above embodiment, the apparatus further includes a pushing seat spring pillar 373 disposed on the pushing seat 37 and a pushing member spring pillar 382 disposed on the pushing member 38, and one end of the extension spring 39 is fixed to the pushing seat spring pillar 373 and the other end is fixed to the pushing member spring pillar 382; the pushing seat 37 and the pushing member 38 are hollow and communicated with each other, a pushing seat end 374 is arranged at one end, far away from the pushing seat 37, of the pushing member 38, the pushing seat end 374 further comprises a first sealing gasket 42, the first sealing gasket 42 is arranged inside the pushing seat 37, and the first sealing gasket 42 is used for sealing the sleeving and binding assembly and the pushing seat 37.

More specifically, on the basis of the above embodiment, the suction structure includes a first vent pipe 56, a second vent pipe 55, a third vent pipe 57, a fourth vent pipe 59, and a fifth vent pipe 62, one end of the first vent pipe 56 is connected to the PCB main board 19, and the other end is connected to the T-shaped tee 54; one end of the second vent pipe 55 is connected with the T-shaped tee 54, and the other end is connected with a vent pipe joint 371 on the pushing seat 38; one end of the third tee air pipe 57 is connected with the T-shaped tee 54, and the other end of the third tee air pipe is connected with the pressure relief assembly 58; one end of the fourth air pipe 59 is connected with the pressure relief assembly 58, and the other end of the fourth air pipe 59 is connected with the negative pressure pump 60; the negative pressure pump 60 is provided with a negative pressure pump sheath 61 and is arranged on the left handle shell 11, and the negative pressure pump 60 is connected with the PCB mainboard 19 through a 2pin interface; negative pressure pump 60 is connected to the one end of fifth logical trachea 62, and fifth logical trachea joint 68 is connected to the other end, installs duckbill valve 67 on the fifth logical trachea structure 68, and the fixed duckbill valve 67 of back installation dysmorphism callus on the sole 66 constitutes negative pressure suction system.

On the basis of the above embodiment, a casing assembly for sucking the focus body is arranged outside the handle, the casing assembly comprises an inner cavity tube 21, an inner cavity tube head 22 and a push tube 24 sleeved outside the inner cavity tube 21, one end of the inner cavity tube 21 is connected with the inner cavity tube head 22 through a filter 23, and the other end of the inner cavity tube 21 is provided with an inner cavity tube suction nozzle 211; a push tube head 25 is arranged at one end of the push tube 24, a push tube buckle 243 arranged on the push tube 24 is matched with a push sleeve limiting block 36 arranged at the tail of the inner cavity tube head 22 to buckle the push tube 24 onto the inner cavity tube head 22, a first buckle 222 is arranged on the inner cavity tube head 22 and used for buckling a left shell buckling position 111 on the left handle shell 11 and a right shell buckling position 121 on the right handle shell 12, the first buckle 222 extends to form a pressing part 223, and a second buckle 224 used for limiting the push sleeve limiting block 36 is further arranged; the limiting block 36 is in contact with the pushing element head 381 during working, the lever structure drives the pushing element head 381 to displace so as to push the limiting block 36, and the limiting block 36 is clamped when passing through the second buckle 224, and the structure is the prior art and is disclosed by patent CN 209789932U.

And the device also comprises a plug-in part 221, and the plug-in part 221 passes through the pushing seat end 374 to abut against the sealing gasket 42.

On the basis of the above embodiment, the cutting knife assembly comprises a knife blade 28, the knife blade 28 is fixed at one end of a knife blade support 29, the other end of the knife blade support 29 is connected with a push tube 27 connected with a push tube head 25, the bottom of the push tube head 25 is provided with a push tube head push table 251, and the push tube 27 is sleeved with a spring 26; the blade 28 is arranged in a blade bin 241 arranged at the upper part of the push pipe, and the push pipe 27 is arranged in a push pipe bin 242 arranged at the upper part of the push pipe; preferably, the device further comprises a push tube bin cover 30 covering the push tube 27.

On the basis of the above embodiment, the wire tightening mechanism further comprises an elastic wire component, the elastic wire component is connected with the driving component, the elastic wire component comprises an elastic wire 34 and a wire hook 32, and the elastic wire 34 sequentially penetrates through the wire hook 32, a wire hanging hole 322 formed in the wire hook 32, and a blade anvil surface 331; preferably, a blade cartridge cover 33 fastened to the upper portion of the blade cartridge 21 is further provided.

Specifically, the wire hanging hook comprises a wire hanging hook head 321 and a limiting clamp 31, the wire hanging hook head 321 is used for being connected with the nut wire hanging hole 181 in a buckled mode, the limiting clamp 31 is fixed to the wire hanging hook head 321, and a wire hook groove 311 buckled with the wire hanging hook head 321 is formed in the limiting clamp 31. Spacing card 31 mainly plays the effect of fixed elastic line subassembly, and elastic line subassembly need rely on spacing card 31 to fix on the thimble assembly before the product uses, and convenient an organic whole is carried, prevents to lose.

For better technical effect, the device further comprises a battery fixing structure, the battery fixing structure is detachably connected with the handle, and comprises a battery clamping tongue 69, a battery cover 70 and a battery chamber 71, the battery cover 70 is installed at the opening of the battery chamber 71, the battery clamping tongue 69 is installed ON the battery cover 70, and the battery cover 70 is provided with an opening mark ON and a closing mark OFF of the battery clamping tongue 69; and a fastening position 691 and a fastening position 122 which is connected with the fastening position 691 in a fastening manner are arranged on the battery fastening tongue 69.

Specifically, before the battery module group is assembled, the battery clamping tongue 69 is pushed to the ON end, after the battery module group is installed in a product body, the battery clamping tongue 69 is provided with a clamping position 691, the clamping position 691 penetrates through the avoiding hole 641 in the front shell connecting piece 64, the battery clamping tongue 69 is pushed to the OFF pipe, and the clamping position 691 clamps the clamping tongue buckling position 122 at the bottom of the right handle shell 12, so that the battery assembling, disassembling and power supplying functions are realized.

Preferably, the left handle shell 11 is provided with a front position sensor 53 and a rear position sensor 51 for monitoring the travel distance of the feed screw nut 18, and the front position sensor 53 and the rear position sensor 51 are respectively positioned at the front end and the rear end of the feed screw 52 to detect the forming position.

This scheme relies on sensor real-time supervision elasticity line to tighten up length. The front position sensor 53 and the rear position sensor 51 monitor the advancing position of the screw nut 18 to determine the tightening degree of the elastic wire 34, and the tightening button 15 is designed into an instant stop mode, so that the pause speed reduction motor 48 can be released at any time to work, and the tightening degree can be observed. The lead screw nut 18 is provided with a fixing hole 182 for fixing the magnet 78; the screw nut 18 automatically moves along the screw 52 in the direction away from the speed reducing motor 48 when the machine is started for the first time; when the magnet 78 on the feed screw nut 18 contacts the magnetic field emitted by the front position touch sensor 53 on the left handle shell 11, the speed reducing motor 48 stops rotating, the feed screw nut 18 stops at the forefront end, and the wire hook 32 can be hung on a nut wire hook 181 on the feed screw nut 18; when the wire tightening key 15 is pressed, the speed reducing motor 48 starts to work, and the lead screw nut 18 moves along the lead screw 52 to a direction close to the speed reducing motor 48; when the magnet 78 on the feed screw nut 18 contacts the magnetic field generated by the rear position sensor 551 on the left handle shell 11, the rotation of the reduction motor 48 is stopped, the feed screw nut 18 stops at the rearmost end, and the wire tightening function is completed.

In another embodiment, the negative pressure pump 60 mechanism can be designed to be detachable or other various implementations. After the electric negative pressure pump 60 is separated, the electric negative pressure pump can also be externally connected with a negative pressure machine to work, and the two working modes coexist, so that the operation is more convenient and diversified.

At this time, the left handle shell 11 is provided with a clamping position 112, and the negative pressure connector 81 is firmly bonded with the fifth ventilation pipe 62 and then clamped into the clamping position 112 on the left handle shell 11; battery compartment 71 bottom design lock mesa 711, negative pressure pump 60 and negative pressure pump sheath 61 equipment completion back, negative pressure pump protective housing 79 packs into, design buckle 791 and ventilation channel 792 on the negative pressure pump protective housing 79, packs into the sealed pad 80 of second in ventilation channel 792, the sealed pad 80 of second plays sealed effect, sealed negative pressure connector 81 and ventilation channel 792.

Before actual use, the negative pressure pump protection shell 79 is installed from the bottom of the battery compartment 71, the buckle 791 on the negative pressure pump protection shell 79 is buckled into the buckling table 711 at the bottom of the battery compartment 71, and the negative pressure connector 81 is inserted into the ventilation channel 792 and compresses the second sealing gasket 80.

When the negative pressure pump 60 fails, the negative pressure pump protective case 79 can be directly removed, so that the negative pressure pump 60 is separated, and then the negative pressure connector 81 can be directly connected with an external negative pressure machine to continue the operation.

During operation, a sheath baffle 351 at the front end of a wire hook sheath 35 on the ligation mechanism is pushed, the bottom of the sheath baffle 351 is clamped with a wire hook 32, so that the wire hook 32 is driven to move forwards, after a wire hook head 321 is separated from a wire hook groove 311 on a limiting card 31, the limiting card 31 is pulled out, then the whole ligation mechanism is arranged on a product, the sheath baffle 351 at the front end of the wire hook sheath 35 is pushed, the wire hook 32 is driven to move forwards, the wire hook head 321 is clamped into a nut wire hanging hole 181 on a screw nut 18, and the assembly of the ligation assembly is completed; the switch/cut-off button 13 is pressed to start the power-on function, the display screen 47 displays all the contents, and the remaining number of use is only prompted when the remaining number of use is less than 1000. The negative pressure pump 60 starts to work, the inner cavity tube suction nozzle 211 on the sleeving mechanism is aligned to the position to be sleeved and grasped in advance, the suction starts, when the display screen 47 displays that the negative pressure value is in the range of-0.08 MPa to-0.10 MPa, the trigger key 44 is pressed down, and the pushing tube 24 pushes the elastic coil 341 out to the position to be sleeved and grasped; the tightening key 15 is pressed, the speed reduction motor 48 starts to work to drive the wire hook 32 and the wire hook sheath 35 which are hung on the screw nut 18 in advance to move forwards, when the front end 351 of the wire hook sheath is abutted against a product, the wire hook sheath 35 stops moving forwards, the wire hook 32 continues to move, the advancing position of the screw nut 18 is monitored through the front position sensor 53 and the rear position sensor 51 to determine the tightening degree of the elastic wire 34, the tightening key 15 is designed to be in an instant stop mode, the work of the speed reduction motor 48 can be released at any time, and the tightening degree is observed; after the tightening is determined, the switch/wire cutting key 13 is pressed, the wire cutting function is started, the electromagnet 20 instantly pushes out the electromagnet plug 17, the pipe head pushing table 251 in the blade system is pushed, the blade 28 is rapidly contacted with the blade anvil plate surface 331, and the function of cutting the elastic wire 34 is realized; after the wire cutting is finished, the pressure relief button 16 is pressed to relieve pressure, the handle is withdrawn, the switch/wire cutting button 13 is pressed, the standby function is started, the negative pressure pump 60 stops working, the display screen continuously works, or the machine is turned off after long pressing for 2-3 s, and the ligation of one part is finished.

When the pushing action is completed once, the pushing sleeve limiting block 36 is limited in position by the second buckle 224 on the inner cavity tube head 22 and cannot return, so that the ligation mechanism cannot be reused, the disposable use requirement of the consumable is met, the pressing part 223 on the inner cavity tube head 22 is pressed down, the ligation mechanism is taken out, the next ligation mechanism is replaced, or the operation is completed.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (12)

1. A novel ligation anastomat capable of automatically tightening and cutting elastic wires comprises a handle and a ligation mechanism arranged on the handle, wherein the ligation mechanism is detachably connected with the handle, a firing mechanism used for firing the ligation mechanism and an attraction mechanism used for providing negative pressure for the ligation mechanism are arranged in the handle, the ligation anastomat is characterized by further comprising a wire tightening mechanism used for tightening the elastic wires and a wire cutting mechanism used for cutting the elastic wires, the wire tightening mechanism comprises a driving assembly, the driving assembly comprises a lead screw (52) and a speed reducing motor (48) driving the lead screw (52) to rotate, the lead screw (52) is in threaded fit with a lead screw nut (18), and the lead screw nut (18) is provided with a nut string hole (181) for hanging and holding the elastic wires;

the wire cutting mechanism comprises a triggering assembly and a cutting knife assembly, the triggering assembly comprises an electromagnet (20) and a control wire cutting switch for the electromagnet (20) to act, and the electromagnet (20) drives the cutting knife assembly to perform cutting action.

2. The novel ligation anastomat capable of automatically tightening and cutting the elastic line is characterized in that the firing mechanism comprises a lever structure and a pushing assembly, the lever structure comprises a pushing lever (43), a lever resistance end (431) and a lever power end (432), the pushing lever (43) is located between the lever resistance end (431) and the lever power end (432), the novel ligation anastomat further comprises a firing key (44) and an extension pipe plug (41), the firing key (44) is in contact with the lever power end (432), the lever resistance end (431) is in contact with the extension pipe plug (41), and the lever resistance end (432) is pressed to toggle the lever power end (432) so as to drive the lever resistance end (431) to move;

the pushing assembly comprises a pushing piece (38), a pushing seat (37), an extension pipe plug (41), a pushing piece extension pipe (40), an extension pipe channel (372) and a pushing piece round hole (383), wherein the extension pipe channel (372) and the pushing piece round hole (383) are sleeved outside the pushing piece extension pipe (40), the pushing piece (38) is in sliding connection with one end of the pushing seat (37), one end of the pushing piece extension pipe (40) is connected with the extension pipe plug (41), the other end of the pushing piece extension pipe is connected with the pushing piece (38), and the pushing piece (38) is connected with.

3. The novel ligation anastomat capable of automatically tightening and cutting the elastic wire is characterized by further comprising a pushing seat spring column (373) arranged on the pushing seat (37) and a pushing part spring column (382) arranged on the pushing part (38), wherein one end of the extension spring (39) is fixed to the first pushing seat spring column (373), the other end of the extension spring is fixed to the second pushing part spring column (382), the pushing seat (37) and the pushing part (38) are hollow and are communicated with each other, one end, away from the pushing seat (37), of the pushing part (38) is provided with a pushing seat opening end (374), and the novel ligation anastomat further comprises a first sealing gasket (42) arranged inside the pushing seat (37).

4. The novel ligation anastomat capable of automatically tightening and cutting the elastic thread according to claim 1, wherein the suction mechanism comprises a first vent pipe (56), a second vent pipe (55), a third vent pipe (57), a fourth vent pipe (59) and a fifth vent pipe (62), one end of the first vent pipe (56) is connected to the PCB main board (19), the other end of the first vent pipe is connected to the T-shaped tee (54), one end of the second vent pipe (55) is connected to the T-shaped tee (54), the other end of the second vent pipe is connected to a vent pipe joint (371) on the pushing seat (38), one end of the third vent pipe (57) is connected to the T-shaped tee (54), the other end of the third vent pipe is connected to a pressure relief component (58), one end of the fourth vent pipe (59) is connected to the pressure relief component (58), the other end of the fourth vent pipe is connected to a negative pressure pump (60), one end of the fifth, the other end is connected with a fifth ventilation pipe joint (68), and a duck bill valve (67) is arranged on the fifth ventilation pipe joint (68) to form a negative pressure suction system.

5. The novel ligation anastomat capable of automatically tightening and cutting elastic line according to claim 1, wherein a sleeve assembly for sucking a disease range body is arranged outside the handle, the sleeve assembly comprises an inner cavity tube (21), an inner cavity tube head (22) and a sleeve, the outer pushing tube (24) of the inner cavity tube (21) is arranged, one end of the inner cavity tube (21) is connected with the inner cavity tube head (22) through a filter (23), an inner cavity tube suction nozzle (211) is arranged at the other end of the inner cavity tube (21), a pushing tube head (25) is arranged at one end of the pushing tube (24), a pushing tube buckle (243) arranged through the pushing tube (24) is matched with a pushing sleeve limiting block (36) arranged at the tail of the inner cavity tube head (22) to buckle the pushing tube (24) to the inner cavity tube head (22), a first buckle (222) is arranged on the inner cavity tube head (22) and used for buckling a left shell buckling position (111) on the left handle shell (11) and a right shell buckling position (12) on the right handle shell (12 The first buckle (222) extends to form a pressing part (223), and a second buckle (224) used for limiting the push sleeve limiting block (36) is further arranged.

6. The novel ligation anastomat capable of automatically tightening and cutting the elastic thread is characterized by further comprising a plug-in part (221), wherein the plug-in part (221) penetrates through the pushing seat end (374) to abut against the first sealing gasket (42).

7. The novel ligation anastomat capable of automatically tightening and cutting elastic threads as claimed in claim 1, wherein the cutting knife assembly comprises a knife blade (28), the knife blade (28) is fixed at one end of a knife blade support (29), the other end of the knife blade support (29) is connected with a push tube (27) connected with a push tube head (25), a push tube head pushing table (251) is arranged at the bottom of the push tube head (25), a spring (26) is sleeved on the push tube (27), the knife blade (28) is installed in a knife blade bin (241) arranged at the upper part of the push tube (24), and the push tube (27) is installed in a push tube bin (242) arranged at the upper part of the push tube.

8. The novel ligation anastomat capable of automatically tightening and cutting the elastic thread is characterized in that the thread tightening mechanism further comprises an elastic thread component, the elastic thread component is connected with the driving component and comprises an elastic thread (34) and a thread hanging hook (32), the elastic thread (34) sequentially penetrates through the thread hanging hook (32), a thread hanging hole (322) and a blade anvil surface (331) which are formed in the thread hanging hook (32), a thread hanging hook head (321) used for buckling the thread hanging hole (181) of the connecting nut and a limiting clamp (31) used for fixing the thread hanging hook head (321), and a thread hook groove (311) buckled with the thread hanging hook head (321) is formed in the limiting clamp (31).

9. The novel ligation anastomat capable of automatically tightening and cutting elastic lines is characterized by further comprising a battery fixing structure, wherein the battery fixing structure is detachably connected with the handle and comprises a battery clamping tongue (69), a battery cover (70) and a battery bin (71), the battery cover (70) is installed at an opening of the battery bin (71), the battery clamping tongue (69) is installed ON the battery cover (70), an opening mark ON and a closing mark OFF of the battery clamping tongue (69) are arranged ON the battery cover (70), a clamping position (691) and a clamping tongue buckling position (122) connected with the clamping position (691) in a buckling mode are arranged ON the battery clamping tongue (69).

10. The new type of ligation anastomat capable of automatically tightening and cutting elastic threads as claimed in claim 1, wherein the left handle shell (11) is provided with a front position sensor (53) and a rear position sensor (51) for monitoring the walking distance of the screw nut (18), and the front position sensor (53) and the rear position sensor (51) are respectively positioned at the front end and the rear end of the screw rod (52).

11. The novel ligation anastomat capable of automatically tightening and cutting elastic threads as claimed in claim 1 or 4, wherein the negative pressure pump (60) mechanism is detachably connected with the handle.

12. The novel ligation anastomat capable of automatically tightening and cutting elastic wires according to claim 1, further comprising a warning/alarming device, wherein the warning/alarming device comprises a loudspeaker (72), the loudspeaker (72) is connected with a PCB (19), and a waterproof sound-transmitting membrane (73) is arranged outside the loudspeaker (72).

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