Disclosure of Invention
Technical scheme (one)
The disposable electric endoscope anastomat comprises an elongated body, a driving guide assembly and a movable cutting sleeve, wherein the elongated body is located at the far end of a driving handle and extends to the execution end of the electric endoscope anastomat, the elongated body is used for being linked with the execution end, the driving guide assembly comprises a driving guide frame, a driving guide groove and a reset spring, the driving guide frame is connected with an inner cavity of the driving handle, the driving guide groove is located at the inner side of the driving guide frame, the reset spring is located above the near end of the driving guide frame, a driving piece is arranged in the driving guide groove and is connected with a driving mechanism, the driving guide groove is in a 'Chinese character' shaped structure, and under the limit of the driving guide groove, the driving piece is located at the bottom end of the driving guide groove, moves forwards for a certain distance, enters the middle of the driving guide groove and withdraws under the effect of the reset spring, the movable cutting sleeve is arranged between the driving guide assembly and the elongated body, and the movable cutting sleeve moves along with the inner side of the driving body, and is respectively matched with different firing rods.
Preferably, the driving guide groove comprises a first pushing guide groove, a resetting guide groove and a second pushing guide groove from bottom to top, the first pushing guide groove, the resetting guide groove and the second pushing guide groove are all transversely arranged, the first pushing guide groove is located at the lowest side of the driving guide frame, the resetting guide groove is located above the first pushing guide groove, the far end of the resetting guide groove is communicated with the far end of the first pushing guide groove, the second pushing guide groove is located above the resetting guide groove, and the near end of the resetting guide groove is communicated with the near end of the second pushing guide groove.
Preferably, the driving piece comprises a movable push rod, the movable push rod is positioned in the driving guide groove, the movable clamping sleeve is arranged at the far end of the movable push rod, two sides of the movable push rod extend outside two sides of the driving guide groove, round rods are arranged at two ends of the movable push rod, multi-stage telescopic rods are connected outside the round rods, supporting rod sleeves are arranged at the bottoms of the multi-stage telescopic rods, the bottoms of the multi-stage telescopic rods are in sliding sleeving connection with the upper ends of the supporting rod sleeves, guide vertical rails are arranged at two sides of the upper parts of the supporting rod sleeves, the round rods move in the guide vertical rails, and driving plates are arranged at the bottoms of the supporting rod sleeves.
Preferably, the round rod is connected with the top end of the multistage telescopic rod, two ends of the round rod are connected with the reset spring, the movable push rod moves along the driving guide groove under the action of the driving guide groove, the multistage telescopic rod is guaranteed to be always connected with the driving mechanism when the movable push rod moves, the driving mechanism comprises a driving motor, the driving motor is located in the driving handle, an output end of the driving motor is provided with a shaft rod, the end part of the shaft rod is provided with a driving screw rod, the bottom of the driving plate is provided with driving teeth, and the driving screw rod is matched with the driving teeth at the bottom of the driving plate.
Preferably, the reset spring is located one side of drive leading truck proximal end top is provided with the direction and erects the groove, the reset spring pass through the direction horizontal pole with it is connected to erect the groove to lead, the direction horizontal pole both ends are located the direction erects the inslot portion and is provided with the direction slider, the direction horizontal pole with the direction slider rotates to be connected, be provided with movable latch on the direction horizontal pole, it is provided with the linkage rack to erect the inslot side to lead, the activity latch with the linkage rack meshing sets up, the direction horizontal pole with be provided with the torsional spring between the direction slider.
Preferably, the front of the driving handle is provided with a firing button, the middle part of the firing button is provided with a rotating shaft and is rotationally connected with the driving handle, the front of the top end of the firing button is provided with a contraction piece, the contraction piece is arranged in a locking groove, the locking groove is fixedly connected with the inner cavity of the driving handle, two ends of the locking groove are provided with elastic buttons, and the elastic buttons linearly move relative to the locking groove.
Preferably, each elastic button is internally provided with a locking rod, the contraction piece is arranged between two locking rods, a locking piece is arranged between the locking rods and two ends of the locking groove, the two locking rods are in a linear locking state in the middle extrusion process, the two locking rods are extruded into the locking groove towards the middle, and the two locking rods are in a linear release state.
The overload detection device comprises a movable clamping sleeve, a movable limiting block and an overload detection rod, wherein the movable clamping sleeve is arranged in the movable clamping sleeve, the movable limiting block is arranged between the tail part of the overload spring and the movable clamping sleeve, the movable limiting block stretches relative to the inner wall of the movable clamping sleeve, the other end of the overload spring is provided with a slide passing piece, the overload detection rod is arranged on one side of the overload detection piece in the overload spring, and when the overload detection rod is contacted with the movable limiting block after being compressed by the overload spring, the overload detection rod pushes the movable limiting block to release the limiting of the overload spring.
Preferably, the middle part of the firing bar is provided with a stop block, the middle part of the slender body is provided with a movable groove, the movable groove is used for limiting the movement range of the stop block, the near end of the firing bar is provided with a movable clamping block, and the movable clamping block is matched with the movable clamping sleeve.
(II) advantageous effects
Compared with the prior art, the invention provides a disposable electric endoscope anastomat, which has the following beneficial effects:
1. the disposable electric endoscope anastomat comprises a driving mechanism, a driving guide assembly, a driving guide groove, a middle layer and a top layer, wherein the driving mechanism is controlled by the driving handle to drive a driving piece to move in the driving guide assembly, when the driving piece moves, the driving piece is respectively moved in the bottom layer, the middle layer and the top layer of the driving guide groove in a Z-shaped structure under the limit of the driving guide groove and a reset spring, when the driving piece moves in the bottom layer of the driving guide groove in the Z-shaped structure, the movable cutting sleeve is connected with a firing rod positioned at the bottom side of the slender body, the driving piece drives the firing rod to perform operation by the driving mechanism, the reset spring is positioned above the near end of the driving guide frame, when the driving piece moves to the middle layer of the driving guide groove in the Z-shaped structure, the driving piece enters into the top layer of the driving guide groove in the Z-shaped structure under the effect of the reset spring, and then is connected with the firing rod positioned at the top side of the slender body, and the driving piece drives the firing rod to perform another operation, the driving rod is controlled by one hand, the driving mechanism drives the driving piece to move to different degrees, and the driving piece can be driven by the driving mechanism to perform different operations when the driving guide assembly is used as the driving piece, the driving piece is driven by the driving guide rod to perform different operations, the operation, the two hands need to perform operation, the operation can be carried out, and the operation can be carried out by the two hands, and the operation can be carried out by the patient, and the two hands can be reduced, and the problem of a patient can be caused when the operation has to have a problem to be caused, and the operation, and has a patient and has a pain to be easy to be brought to a patient.
2. The disposable electric endoscope anastomat can move in the guide vertical groove under the drive of the guide cross rod through the reset spring, when the movable push rod at one end of the reset spring moves in the first pushing guide groove, the movable latch at the two ends of the guide cross rod is pulled by the reset spring and moves towards the middle part of the guide vertical groove along the linkage rack, the length of the first pushing guide groove is limited, namely, the length of the stretched movable latch is limited, namely, the movable latch can only rotate towards the middle part of the guide vertical groove, torsion springs positioned between the guide cross rod and the guide sliding block during rotation are twisted, elastic potential energy is stored, when the movable push rod moves towards the proximal end of the driving guide frame, the reset spring contracts, the tension force received by the movable latch is reduced, the torsion springs begin to retract, and the accumulated elastic potential energy is released, so that the movable latch moves towards the upper part of the guide vertical groove along the linkage rack.
3. According to the disposable electric endoscope anastomat, when the elastic button is extruded to the middle part, the shrinkage part is extruded through the locking rod, the contact part of the shrinkage part and the locking rod can be in a wedge-shaped block structure, so that when the shrinkage part is extruded by the locking rod, the shrinkage part can move to the outer side of the locking groove, when the firing button is required to be locked in a contact mode, the elastic button is continuously extruded to the middle part, the locking part between the locking rod and the locking groove is in a linear release state, namely, the locking rod and the locking groove can move linearly, under the elastic action of the elastic button, the shrinkage part is started to be far away from the shrinkage part, and the shrinkage part is shrunk into the locking groove, so that the locking release of the firing button is completed.
4. When the mechanical clamping condition occurs at the far end of the firing rod, the overload spring cannot push the firing rod to cause continuous compression after being pushed, the overload spring compresses and drives the overload piece to push the overload probe rod to move towards the movable limiting block until the overload probe rod contacts with the movable limiting block and pushes the movable limiting block to shrink to the inner wall of the movable clamping sleeve, the limitation on the overload spring is relieved, at the moment, the overload spring releases elastic potential energy to the inner side of the movable clamping sleeve, the pushing force on the firing rod is reduced, and the phenomena that the executing end of the anastomat breaks and drops in a human body when the mechanical clamping condition occurs at the far end of the firing rod are avoided.
Drawings
FIG. 1 is a schematic view of the internal cross-sectional perspective structure of a drive handle of the present invention;
FIG. 2 is a schematic perspective view of a drive guide assembly according to one embodiment of the present invention;
FIG. 3 is a schematic view of a partially exploded construction of a driving member according to the present invention;
FIG. 4 is a schematic diagram showing a second perspective view of a driving guide assembly according to the present invention;
FIG. 5 is a schematic view of the structure of the present invention shown in FIG. 4 at a partially enlarged scale;
FIG. 6 is a schematic perspective view of one of the drive guide assembly portion and the driver portion of the present invention;
FIG. 7 is a second perspective view of a drive guide assembly portion and a driver portion according to the present invention;
FIG. 8 is a schematic view of the internal partially cut-away plan view of the drive handle of the present invention;
FIG. 9 is a schematic view of the internal cross-sectional perspective of a movable ferrule portion of the present invention;
FIG. 10 is a schematic view of a shrink member portion of the present invention in perspective;
FIG. 11 is a schematic view of a partial plan view of a retractor of the invention;
FIG. 12 is a schematic view of the internal cross-sectional plan view of the present invention at A-A of FIG. 11;
FIG. 13 is a schematic view of an exploded view of the elongate body and firing bar portion of the present invention.
In the figure, 1, an elongated body, 11, a movable groove, 2, a driving handle, 21, a firing button, 22, a rotating shaft, 23, a contraction piece, 24, a locking groove, 25, an elastic button, 26, a locking rod, 3, a driving guide assembly, 31, a driving guide frame, 32, a driving guide groove, 321, a first driving guide groove, 322, a reset guide groove, 323, a second driving guide groove, a reset spring, 331, a guiding vertical groove, 332, a guiding cross rod, 333, a guiding sliding block, 334, a movable latch, 335, a linkage rack, 336, a torsion spring, 34, an elastic supporting plate, 341, a driving gear, 4, a driving piece, 41, a movable push rod, 42, a round rod, 43, a multi-stage telescopic rod, 44, a supporting rod sleeve, 45, a guiding vertical rail, 46, a driving plate, 461, a driving tooth socket, 5, a movable clamp sleeve, 51, an overload spring, 52, a movable limiting block, 53, an overload piece, 54, an overload probe rod, 6, a driving motor, 61,62, a driving screw, 7, a stop, 71 and a movable shaft.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the disposable electric endoscope anastomat comprises an elongated body 1, a driving guide assembly 3 and a movable clamping sleeve 5, wherein the elongated body 1 is positioned at the far end of a driving handle 2 and extends to the execution end of the electric endoscope anastomat, the elongated body 1 is used for being linked with the execution end, the driving guide assembly 3 comprises a driving guide frame 31, a driving guide groove 32 and a reset spring 33, the driving guide frame 31 is connected with the inner cavity of the driving handle 2, the driving guide groove 32 is positioned at the inner side of the driving guide frame 31, the reset spring is positioned above the near end of the driving guide frame 31, a driving piece 4 is arranged in the driving guide groove 32, the driving piece 4 is connected with a driving mechanism, the driving guide groove 32 is in a ' Chinese character ' shaped ' structure, the driving piece 4 is positioned at the bottom end of the driving guide groove 32 and moves forwards a certain distance and then enters the middle part of the driving guide groove 32 under the action of the reset spring 33, the driving guide assembly 3 and the elongated body 1 are provided with the movable clamping sleeve 5 which moves along with the driving piece 4 and is respectively clamped and matched with different rods in the elongated body 1.
When the driving piece 4 moves in the driving guide assembly 3 under the limitation of the driving guide groove 32 and the reset spring 33, the driving piece 4 moves in the bottom layer, the middle layer and the top layer of the driving guide groove 32 with the ' Chinese character ' ji ' shape respectively, when the driving piece 4 moves in the bottom layer range of the driving guide groove 32 with the ' Chinese character ' ji ' shape, the movable clamping sleeve 5 is connected with the firing bar positioned at the bottom side of the slender body 1, the driving piece 4 drives the firing bar to perform operation, as the reset spring 33 is positioned above the proximal end of the driving guide frame 31, when the driving piece 4 moves to the middle layer of the driving guide groove 32 with the ' Chinese character ' ji ' shape, the driving piece 4 enters into the top layer range of the driving guide groove 32 with the ' ji ' shape under the action of the reset spring 33, and then the movable clamping sleeve 5 is connected with the firing bar positioned at the top side of the slender body 1, and the driving piece 4 drives the firing bar to perform another operation, the process only needs to control the driving handle 2, and the firing bar is driven by the driving piece 4 to move in a different degrees through the driving mechanism, thus the firing bar is not required to perform the operation, and the manual operation is not required to be carried out by the two hands, the operator is required to be carried out by the patient, and the operator is not required to have the manual operation, and the problem is solved when the operator is driven to perform the operation is driven to be different from the operation, and the operation is carried out.
Referring to fig. 2-4, further, the driving guiding slot 32 includes a first pushing guiding slot 321, a restoring guiding slot 322 and a second pushing guiding slot 323 from bottom to top, the first pushing guiding slot 321, the restoring guiding slot 322 and the second pushing guiding slot 323 are all transversely arranged, the first pushing guiding slot 321 is located at the lowest side of the driving guiding frame 31, the restoring guiding slot 322 is located above the first pushing guiding slot 321, the distal end of the restoring guiding slot 322 is communicated with the distal end of the first pushing guiding slot 321, the second pushing guiding slot 323 is located above the restoring guiding slot 322, the proximal end of the restoring guiding slot 322 is communicated with the proximal end of the second pushing guiding slot 323, and by means of the driving guiding slot 32 formed by the first pushing guiding slot 321, the restoring guiding slot 322 and the second pushing guiding slot 323, the driving piece 4 moves in the first pushing guiding slot 321 first, so that the opening and closing actions of the executing ends of the anastomat can be realized; when the actuating end is clamped at the tissue of the patient, the operation of resetting is needed to complete other operations, the actuating element 4 is driven to move forward of the first pushing guide groove 321, namely, the distal end of the guide frame 31 is driven, the actuating element 4 is driven to move to the connection position of the first pushing guide groove 321 and the resetting guide groove 322, in addition, the corner of the connection position is provided with an inclined chamfer, so that the actuating element 4 moves along the inclined chamfer after moving to the forefront of the first pushing guide groove 321 and moves into the resetting guide groove 322, the actuating element 4 stops driving, and then is driven by the reset spring 33, the actuating element 4 moves to the proximal end of the actuating guide frame 31 along the resetting guide groove 322 until moving to the connection position of the resetting guide groove 322 and the second pushing guide groove 323 and approaching the upper side of the second pushing guide groove 323, at this time, the driving member 4 is driven to move forward by the driving mechanism again, and the driving member 4 moves in the second pushing guide groove 323, so that the cutting and anastomosis actions of the anastomat can be realized;
In addition, an elastic supporting plate 34 capable of turning upwards is arranged at the end part of a partition plate where the reset guide groove 322 is communicated with the second pushing guide groove 323, the elastic supporting plate 34 is normally positioned on the same plane with the partition plate, a driving gear 341 is arranged in the partition plate, when the movable push rod 41 moves from the reset guide groove 322 to the inlet end of the second pushing guide groove 323, the movable push rod 41 pushes the driving gear 341 to rotate, so that the elastic supporting plate 34 turns over, at the moment, the communication part of the reset guide groove 322 and the second pushing guide groove 323 is in an open state until the movable push rod 41 exceeds the partition plate, the elastic supporting plate 34 is in a horizontal state again under the action of elasticity, the movable push rod 41 is supported in the second pushing guide groove 323, and when the movable push rod 41 moves proximally in the second pushing guide groove 323, the movable push rod 41 pushes the driving gear 341 to rotate, so that the elastic supporting plate 34 turns over, at the moment, the communication part of the reset guide groove 322 and the second pushing guide groove 323 is in an open state until the movable push rod 41 exceeds the partition plate, the elastic supporting plate 34 is in a horizontal state again under the action of elasticity, the elastic supporting plate 34 is pushed in the state under the action of the elastic supporting plate, and the elastic supporting plate 41 can not push the reset push rod 41 in the reset guide groove 33.
Referring to fig. 3-6, further, the driving member 4 includes a moving push rod 41, the moving push rod 41 is located in the driving guide groove 32, the movable sleeve 5 is disposed at the distal end of the moving push rod 41, two sides of the moving push rod 41 extend outside two sides of the driving guide groove 32, two ends of the moving push rod 41 are provided with round rods 42, a multi-stage telescopic rod 43 is connected to the outside of the round rods 42, a supporting rod sleeve 44 is disposed at the bottom of the multi-stage telescopic rod 43, the bottom of the multi-stage telescopic rod 43 is slidably sleeved with the upper end of the supporting rod sleeve 44, two sides above the supporting rod sleeve 44 are provided with guide vertical rails 45, the round rods 42 move in the guide vertical rails 45, a driving plate 46 is disposed at the bottom of the supporting rod sleeve 44, the moving push rod 41 moves in the driving guide groove 32 by means of the moving push rod 41, and the first pushing guide groove 321, the reset guide groove 322 and the second pushing guide groove 323 move in the driving guide groove 32, the supporting rod sleeve 44 moves with the multi-stage telescopic rod 43 and the guide vertical rail 45 under the driving mechanism, and the rod 42 moves along the multi-stage telescopic rod 43, and the rod 42 moves along the supporting rod sleeve 41, and the rod 42 moves along the first pushing guide groove 321 and the second pushing guide groove 322, and the second pushing groove 322 can move between the first pushing groove 321 and the reset layer and the second pushing groove 323 and the second guide groove 45 simultaneously.
Referring to fig. 3 and 6-8, further, a round rod 42 is connected to the top end of a multi-stage telescopic rod 43, two ends of the round rod 42 are connected to a return spring 33, a moving push rod 41 moves along the driving guide groove 32 under the action of the driving guide groove 32, the multi-stage telescopic rod 43 ensures that the moving push rod 41 is always connected to a driving mechanism when moving, the driving mechanism comprises a driving motor 6, the driving motor 6 is located in the driving handle 2, an output end of the driving motor 6 is provided with a shaft rod 61, a driving screw rod 62 is arranged at the end of the shaft rod 61, a driving tooth 461 is arranged at the bottom of the driving plate 46, the driving screw rod 62 is matched with the driving tooth 461 at the bottom of the driving plate 46, the driving screw rod 62 is driven to rotate by the shaft rod 61, and the driving plate 46 matched with the driving screw rod 62 is driven to move when the driving screw rod 62 rotates, so that the moving push rod 41 is driven to move in the driving guide groove 32.
Referring to fig. 4-5, further, a guide vertical groove 331 is provided on one side of the return spring 33 above the proximal end of the driving guide frame 31, the return spring 33 is connected with the guide vertical groove 331 through a guide cross rod 332, a guide sliding block 333 is provided inside the guide vertical groove 331 at two ends of the guide cross rod 332, the guide cross rod 332 is rotationally connected with the guide sliding block 333, a movable latch 334 is provided on the guide cross rod 332, a linkage rack 335 is provided on the inner side of the guide vertical groove 331, the movable latch 334 is meshed with the linkage rack 335, a torsion spring 336 is provided between the guide cross rod 332 and the guide sliding block 333, the return spring 33 can move in the guide vertical groove 331 under the driving of the guide cross rod 332, when a movable push rod 41 at one end of the return spring 33 moves in the first pushing guide groove 321, the movable latch 334 at two ends of the guide cross rod 332 is subject to the tension of the return spring 33, and moves along the middle of the linkage rack 335, and as the length of the first pushing guide groove 321 is limited, namely the length of the movable latch 334 is limited, the movable latch 334 is subject to the tension force, so that the movable latch 334 can only rotates the middle part of the linkage rack 334 is capable of being rotationally retracted along the first pushing guide groove 331, the torsion spring 334 is retracted along the direction, the movable latch 334 is retracted, and the movable latch 334 is retracted along the direction, and the movable latch 334 is retracted along the movable guide groove, and moves along the movable guide groove, and the movable latch guide groove is retracted, and moves along the movable guide rail, and has the movable latch guide rail.
Referring to fig. 8 and 10-12, further, a firing button 21 is provided in front of the driving handle 2, a rotating shaft 22 is provided in the middle of the firing button 21 and is rotatably connected with the driving handle 2, a shrinking piece 23 is provided in front of the top end of the firing button 21, the shrinking piece 23 is disposed in a locking groove 24, the locking groove 24 is fixedly connected with an inner cavity of the driving handle 2, two ends of the locking groove 24 are provided with elastic buttons 25, the elastic buttons 25 linearly move relative to the locking groove 24, the firing of the driving mechanism is performed by using the firing button 21 in the driving handle 2, and the shrinking piece 23 provided in front of the firing button 21 pushes the outer side of the locking groove 24 when the elastic buttons 25 are extruded to the middle, so that the firing button 21 is clamped, and the middle of the firing button 21 is rotatably connected with the driving handle 2 through the rotating shaft 22, so that the upper end of the firing button 21 cannot deflect, and the firing button 21 cannot perform firing of the driving mechanism.
Referring to fig. 10-12, further, a locking bar 26 is disposed in each elastic button 25, a shrinking member 23 is disposed between two locking bars 26, a locking member is disposed between two ends of the locking bars 26 and the locking grooves 24, in the process of pressing the two locking bars 26 toward the middle, the locking member between the locking bars 26 and the locking bars 26 is in a linear locking state, the two locking bars 26 press toward the middle into the locking grooves 24, the locking bars 26 and the locking bars 26 are in a linear releasing state, when the elastic buttons 25 press toward the middle, the shrinking member 23 is pressed by the locking bars 26, wherein the contact part of the shrinking member 23 and the locking bars 26 can adopt a wedge-shaped block structure, so that the shrinking member 23 can move to the outer side of the locking grooves 24 when the locking bar 23 presses the shrinking member 23, when the firing button 21 needs to be locked, the locking member between the locking bars 26 and the locking grooves 24 is in a linear releasing state, namely, the locking member between the locking bars 26 and the locking grooves 24 can move linearly, under the elastic action of the elastic buttons 25, the locking bars 26 start to be far away from the shrinking member 23, and the shrinking member 23 can automatically retract, and the existing locking mechanism can be relieved, wherein the existing locking mechanism can not be used.
Referring to fig. 9, further, an overload spring 51 is disposed inside the movable sleeve 5, a movable limiting block 52 is disposed between the tail of the overload spring 51 and the movable sleeve 5, the movable limiting block 52 stretches relative to the inner wall of the movable sleeve 5, an overload probe 54 is disposed on one side of the overload spring 51, which is located on the other side of the overload spring 51, of the overload plate 53, when the overload spring 51 is compressed until the overload probe 54 contacts the movable limiting block 52, the overload probe 54 pushes the movable limiting block 52 to release the limiting of the overload spring 51, when the overload spring 51 in the movable sleeve 5 is pushed by the driving piece 4, the overload spring 51 starts to compress, after the overload spring 51 is compressed to a certain extent, the firing rod is pushed to move forward, when the mechanical clamping condition occurs at the far end of the firing rod, the firing rod cannot push the firing rod after the overload spring 51 is pushed, continuous compression is caused, the overload spring 51 is compressed and drives the overload probe 54 to move towards the movable limiting block 52 until the overload probe 54 contacts the movable limiting block 52, and pushes the movable limiting block 52 to shrink to the inner wall of the movable sleeve 5, the limit of the overload spring 51 is relieved, the overload spring 51 is released towards the inner side of the movable sleeve 5, the firing rod is prevented from falling off, and the mechanical clamping condition is avoided when the mechanical clamping condition occurs at the far end is avoided.
Referring to fig. 13, further, a stop 7 is disposed in the middle of the firing bar, a movable slot 11 is disposed in the middle of the elongated body 1, the movable slot 11 is used for limiting the movement range of the stop 7, a movable clamping block 71 is disposed at the proximal end of the firing bar, the movable clamping block 71 is adapted to the movable clamping sleeve 5, and the phenomenon that the firing bar is excessively fired under the elasticity of the overload spring 51 is avoided by using the stop 7 disposed in the middle of the firing bar under the limitation of the movable slot 11 disposed in the middle of the elongated body 1.
The operating principle is that when the anastomat is used, before the execution end of the anastomat enters a human body and the anastomat starts to perform anastomosis operation, the triggering of a driving mechanism is performed by utilizing a triggering button 21 in a driving handle 2, when an elastic button 25 is pressed towards the middle part through a contraction piece 23 arranged in front of the triggering button 21, the outside of a locking groove 24 of the contraction piece 23 is pushed, and then the triggering button 21 is clamped, because the middle part of the triggering button 21 is rotationally connected with the driving handle 2 through a rotating shaft 22, the upper end of the triggering button 21 cannot deflect at the moment, so that the triggering button 21 cannot perform the triggering mechanism, when the elastic button 25 is pressed towards the middle part, the contraction piece 23 is pressed through a locking rod 26, wherein the contact part of the contraction piece 23 and the locking rod 26 can be in a wedge-shaped block structure, when the locking rod 26 presses the contraction piece 23, the contraction piece 23 can move towards the outside of the locking groove 24, when the triggering button 21 needs to be pressed towards the middle part, the locking piece between the locking rod 26 and the locking groove 24 is in a linear release state, namely, the locking piece between the locking rod 26 and the locking groove 24 can move linearly, when the elastic button 25 is pressed towards the middle part, the elastic button 26 is pressed towards the locking piece 26, and the locking piece 23 is far away from the locking groove 24, and the contraction piece 23 starts to be released, and the contraction piece 23 starts to be locked, and released from the contraction piece 23 when the contraction is started.
In the operation process, the driving mechanism is controlled by the driving handle 2 to drive the driving piece 4 to move in the driving guide assembly 3, when the driving piece 4 moves, under the limitation of the driving guide groove 32 and the reset spring, the driving piece 4 moves in the upper layer range of the driving guide groove 32 with the ' Chinese character ' ji ' shape, when the driving piece 4 moves in the lower layer range of the driving guide groove 32 with the ' Chinese character ' ji ' shape, the movable clamping sleeve 5 is connected with the firing bar positioned at the bottom side of the slender body 1, the driving piece 4 drives the firing bar to perform operation, and as the reset spring is positioned above the proximal end of the driving guide frame 31, when the driving piece 4 moves to the middle layer of the driving guide groove 32 with the ' Chinese character ' ji ' shape, the driving piece 4 enters into the upper layer range of the driving guide groove 32 with the ' ji ' shape under the action of the reset spring, and when the movable clamping sleeve 5 moves, the driving piece 4 drives the firing bar to perform another operation, the process only needs one firing bar to control the handle 2, and the firing bar is driven by the driving piece 4 to perform the operation with different degrees, thus the problems of the operation can be solved, and the manual operation can be completed when the patient is driven by the driving piece 4 to move in the driving guide assembly with different degrees, and the manual operation can be performed, and the manual operation can be carried out by the manual operation can not need to cause the manual operation, and the manual operation can be different operation, and the manual operation can be reduced;
The movable clamping sleeve 5 which moves synchronously with the driving piece 4 is connected with the firing bar at one side of the bottom end before moving, the driving piece 4 can move in the range of the bottom layer of the driving guide groove 32 to drive the firing bar to perform operation until the operation is completed, the driving piece 4 continuously moves forwards in the bottom layer of the driving guide groove 32 and moves to the reset position of the bottom layer and the middle layer, the movable clamping sleeve 5 and the firing bar are in a clamping connection state, under the action of the reset spring 33, the driving piece 4 starts to enter the middle layer of the driving guide groove 32 in the Z-shaped structure, the driving piece 4 stops providing driving force through the driving handle 2, the driving piece 4 loses driving, the driving piece 4 drives the movable clamping sleeve 5 to start to retract in the driving guide groove 32 in the Z-shaped structure along with the shrinkage of the reset spring 33, and after the driving guide groove 32 in the Z-shaped structure is retracted to the position of the middle layer, the driving piece 4 is positioned at the near end of the top layer of the driving guide groove 32 in the Z-shaped structure, at the moment, the driving piece 4 is controlled by the driving handle 2 to move forwards to the driving piece 4, and the driving piece 4 is driven to move forwards through the driving handle 2, the driving piece 4 and the firing bar is matched with the firing bar in the range, and the operation can be completed.
When the execution end is clamped at the tissue of a patient, the operation of resetting to complete other operations is required, the driving piece 4 is continuously driven to move to the front of the first pushing guide groove 321, namely the far end of the driving guide frame 31, the driving piece 4 is driven to move to the connecting position of the first pushing guide groove 321 and the second pushing guide groove 322, in addition, the corner of the connecting position is provided with an inclined chamfer, so that the driving piece 4 stops driving after moving to the forefront of the first pushing guide groove 321, moves along the inclined chamfer and moves into the reset guide groove 322, and is driven by the reset spring 33 at the moment, the driving piece 4 moves to the near end of the driving guide frame 31 along the reset guide groove 322 until moving to the connecting position of the reset guide groove 322 and the second pushing guide groove 323, and the second pushing guide groove 323 moves to the side of the second pushing guide groove 323, and the driving piece 4 can move to the front of the anastomotic device 323 again, and the driving piece 4 can move to the front of the driving mechanism 323;
In addition, an elastic supporting plate 34 capable of turning upwards is arranged at the end part of a partition plate where the reset guide groove 322 is communicated with the second pushing guide groove 323, the elastic supporting plate 34 is normally positioned on the same plane with the partition plate, a driving gear 341 is arranged in the partition plate, when the movable push rod 41 moves from the reset guide groove 322 to the inlet end of the second pushing guide groove 323, the movable push rod 41 pushes the driving gear 341 to rotate, so that the elastic supporting plate 34 turns over, at the moment, the communication part of the reset guide groove 322 and the second pushing guide groove 323 is in an open state until the movable push rod 41 exceeds the partition plate, the elastic supporting plate 34 is in a horizontal state again under the action of elasticity, so that the movable push rod 41 is supported in the second pushing guide groove 323, when the movable push rod 41 moves proximally in the second pushing guide groove 323, the movable push rod 41 pushes the driving gear 341 to rotate, so that the elastic supporting plate 34 turns over, at the moment, the communication part of the reset guide groove 322 and the second pushing guide groove 323 is in an open state until the movable push rod 41 exceeds the partition plate, the elastic supporting plate 34 is in a horizontal state again under the action of elasticity, the elastic supporting plate 34 is pushed down the reset push rod 41, and the movable push rod 41 can not push the elastic supporting plate 33 in the reset guide groove 33;
Wherein, the movable push rod 41 moves in the driving guide groove 32, when the first pushing guide groove 321, the reset guide groove 322 and the second pushing guide groove 323 in the driving guide groove 32 move respectively, the supporting rod sleeve 44 is driven by the driving mechanism to move with the multi-stage telescopic rod 43 and the guide vertical rail 45 above the supporting rod sleeve, the round rods 42 at two ends of the movable push rod 41 move along the same direction with the multi-stage telescopic rod 43, and when the movable push rod 41 is switched between layers of the first pushing guide groove 321, the reset guide groove 322 and the second pushing guide groove 323, the round rods 42 move up and down in the guide vertical rail 45, so that the movable push rod 41 can move transversely and also realize longitudinal movement, so as to switch among the first pushing guide groove 321, the reset guide groove 322 and the second pushing guide groove 323;
During the resetting process, the reset spring 33 can move in the guide vertical groove 331 under the drive of the guide cross rod 332, when the movable push rod 41 at one end of the reset spring 33 moves in the first pushing guide groove 321, the movable latch 334 at two ends of the guide cross rod 332 receives the tensile force of the reset spring 33, moves towards the middle part of the guide vertical groove 331 along the linkage rack 335, and because the length of the first pushing guide groove 321 is limited, the length of the reset spring is limited, namely, the tensile force received by the movable latch 334 is limited, the movable latch 334 can only rotate towards the middle part of the guide vertical groove 331, and when the movable push rod 41 moves towards the proximal end of the driving guide frame 31, the torsion spring 336 between the guide cross rod 332 and the guide slide block 333 is twisted, and elastic potential energy is accumulated, and when the movable push rod 41 moves towards the proximal end of the driving guide frame 31, the movable latch 334 is contracted, the tensile force received by the movable latch 334 is reduced, the torsion spring 336 starts to retract, and the accumulated elastic potential energy is released, so that the movable latch 334 moves towards the upper part of the guide vertical groove 331 along the linkage rack 335;
When the trigger is triggered, the stop block 7 arranged in the middle of the trigger rod is limited by the movable groove 11 arranged in the middle of the slender body 1, the phenomenon that the trigger rod is excessively triggered under the elastic force of the overload spring 51 is avoided, when the overload spring 51 in the movable clamping sleeve 5 is pushed by the driving piece 4, the overload spring 51 starts to compress, after the overload spring 51 pushes the trigger rod to move forwards to a certain extent, when the mechanical clamping condition occurs at the far end of the trigger rod, the overload spring 51 cannot push the trigger rod after being pushed to cause continuous compression, the overload spring 51 compresses and drives the overload probe rod 54 to move towards the movable limiting block 52 until the overload probe rod 54 contacts with the movable limiting block 52, and pushes the movable limiting block 52 to retract to the inner wall of the movable clamping sleeve 5, the limitation on the overload spring 51 is relieved, at the moment, the overload spring 51 releases elastic potential energy towards the inner side of the movable clamping sleeve 5, the thrust on the trigger rod is reduced, and the phenomena that the executing end of the anastomat breaks and drops in a human body when the mechanical clamping condition occurs at the far end of the trigger rod are avoided.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.