CN116763382A - Firing structure of electric anastomat - Google Patents

Abstract

The application relates to the technical field of anastomat and discloses a firing structure of an electric anastomat. After anastomotic treatment, when the nail bin and the nail seat are unfolded, the limiting sliding piece is driven by the rotation of the nail seat to move and can not be buckled with the fixing ring instantly, so that after the nail seat is unfolded, the fixing ring synchronously drives the nail box to rotate, and the fixing ring drives the nail box to rotate out of an opening of the nail bin, so that the nail box is automatically ejected from the nail bin, the nail box is more convenient to be replaced by medical staff, and the operation time is reduced.

Description

Firing structure of electric anastomat

Technical Field

The application relates to the technical field of anastomat, in particular to a firing structure of an electric anastomat.

Background

Endoscopic staplers are used for suturing, cutting, and severing tissues and organs in endoscopic and open surgery. Cutting and stapling tissue by a smooth, constant forward push; the rotary motion connecting mechanism of the micro motor is converted into forward and backward motion, the forming force applied to the titanium nails is consistent and stable when the titanium nails are cut and pushed to form, the consistency is better, the problem of poor titanium nail forming can be reduced with high probability, and medical accidents such as bleeding at the anastomotic stoma, leakage at the anastomotic stoma and the like can be effectively reduced.

In the existing anastomat, as in the chinese patent application CN111803164a, the screw rod is parallel to the firing push rod, one end of the screw rod is meshed with the transmission gear through the coupling component, the transmission gear can slide along the positioning shaft between the screw rod and the firing gear by stirring the assembly, the transmission gear is always connected with the transmission assembly in a coupling way and driven by the driving motor to rotate around the positioning shaft, the stirring assembly stirs the transmission gear to be meshed with the screw rod through the coupling component and separated from the firing gear, the transmission gear controls the screw rod to perform clamping action, and the stirring assembly stirs the transmission gear to be meshed with the firing gear and separated from the screw rod, and the transmission gear controls the firing push rod to perform firing action. According to the structure of the application, the screw rod can execute clamping action and the triggering push rod can execute triggering action by stirring the transmission gear to different positions, and the stirring assembly is used for switching according to the requirement, so that the aim that different people can clamp tissues to be anastomosed according to uniform clamping distances is fulfilled by executing the clamping action in an electric mode.

But there are also the following problems: when the staple cartridge is replaced, medical staff is required to manually buckle the staple cartridge buckled in the staple cartridge out and take out the staple cartridge, and if the stapler is required to be used for a plurality of times for a patient, the replacement is inconvenient, and the operation time is long.

Disclosure of Invention

Aiming at the defects of the prior art, the application provides a firing structure of an electric anastomat, which has the advantages of enabling medical staff to replace a staple box more conveniently, reducing operation time and the like, and solves the problems that when the staple box is replaced, the medical staff is required to manually buckle the staple box buckled in the staple box and take out the staple box, and if the anastomat is required to be used for a patient for multiple times, the replacement is inconvenient and the operation time is long.

In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides an electric anastomat firing structure, includes nail storehouse, nail seat, the complementary unit who sets up on the nail storehouse, the firing mechanism who sets up on the nail storehouse, the nail storehouse with the nail seat normal running fit, the side wall face that faces towards on the nail storehouse is the opening;

the auxiliary mechanism comprises a fixed ring, a nail box and a limiting slide piece, wherein the fixed ring is in rotary fit in the nail bin, the nail box is buckled on the fixed ring, the nail box is a disposable replaceable anastomotic nail box, and the limiting slide piece is arranged in the nail bin in a sliding manner;

the firing mechanism comprises a firing shaft lever, the firing shaft lever is arranged beside the nail bin, the firing shaft lever penetrates through the wall surface of the nail bin, and the firing shaft lever stretches into the nail bin to control the anastomotic nails in the nail box to be fired;

after the nail box is buckled on the fixing ring and placed in the nail bin, the fixing ring is buckled with the limiting sliding piece, after the nail bin and the nail seat are folded to clamp human tissues, the rotation of the nail seat drives the limiting sliding piece to move, after the anastomotic nail in the nail box is fired, the nail seat rotates and opens between the nail bin, and the fixing ring drives the nail box to rotate so as to eject the nail box from the nail bin.

Preferably, the auxiliary mechanism further comprises a fixed shaft, the fixed shaft is arranged in the nail bin, one end of the fixed shaft is in running fit with the nail bin, the other end of the fixed shaft is fixedly connected with the nail seat, a protrusion is arranged on the fixed ring, a groove is arranged on the nail box, the protrusion of the fixed ring is matched with the groove of the nail box, a sliding rail is fixedly arranged on the nail bin, the sliding rail is in sliding fit with the limiting sliding piece, a limiting fixing piece is fixedly arranged on the fixed ring, and the limiting fixing piece is buckled with the limiting sliding piece.

Preferably, a fixing plate is fixedly arranged in the nail bin, a telescopic rod is arranged between the fixing plate and the limiting sliding piece, a fixed rod of the telescopic rod is connected with the fixing plate, a stretching rod of the telescopic rod is connected with the limiting sliding piece, a spring is sleeved on the stretching rod of the telescopic rod, one end of the spring is connected with the limiting sliding piece, and the other end of the spring is connected with the fixed rod of the telescopic rod.

Preferably, the nail bin is rotationally matched with a first reversing gear, a first belt is tensioned on the shaft of the first reversing gear and the fixed shaft, the nail bin is rotationally matched with a second reversing gear, the second reversing gear is meshed with the first reversing gear, the nail bin is rotationally matched with an auxiliary gear, teeth are arranged on the limiting slide piece, the auxiliary gear is meshed with the teeth of the limiting slide piece, and a second belt is tensioned on the shaft of the auxiliary gear and the shaft of the second reversing gear.

Preferably, the fixed ring with all fixed mounting has the limit frame on the nail storehouse, the limit frame with the dead axle is relative, be provided with first shell fragment on the limit frame, the arc groove has been seted up on the nail box, fixed mounting has the second shell fragment on the nail storehouse, the second shell fragment with the arc groove of nail box is relative, the second shell fragment with the arc groove looks adaptation of nail box.

Preferably, the firing mechanism further comprises a housing, the housing is arranged beside the staple cartridge, an elongated body is arranged on the housing and connected with the staple cartridge, the housing is communicated with the elongated body, the elongated body is communicated with the staple cartridge, the firing shaft rod is positioned inside the elongated body, one end of the firing shaft rod extends to the inside of the housing, and the other end of the firing shaft rod penetrates through the elongated body and extends to the inside of the staple cartridge.

Preferably, a fixed sliding frame is fixedly arranged in the shell, a linkage rod is slidably matched on the fixed sliding frame, the linkage rod is fixedly connected with the firing shaft rod, teeth are arranged at the other end of the linkage rod, a motor is fixedly arranged in the shell, a driving gear is fixedly arranged on a shaft of the motor, and the driving gear is meshed with the teeth of the linkage rod.

Preferably, a soft sleeve is arranged in the slender body, one end of the soft sleeve is fixedly installed with the slender body, the other end of the soft sleeve is fixedly installed with the nail bin, the firing shaft rod is opposite to the soft sleeve, the soft sleeve is opposite to the nail box, a flexible shaft is arranged in the soft sleeve in a sliding mode, one end of the flexible shaft is connected with the firing shaft rod, and the other end of the flexible shaft is opposite to the nail box.

Preferably, a baffle is fixedly installed in the nail box, a locating frame is fixedly installed on the baffle, a sliding block is slidably matched on the locating frame, the sliding block penetrates through the baffle, a firing piece is fixedly installed on the sliding block and located below the baffle, a cutting knife is fixedly installed on the firing piece, and the cutting knife penetrates through the nail box.

Compared with the prior art, the application provides a firing structure of an electric anastomat, which has the following beneficial effects:

1. according to the firing structure of the electric anastomat, after anastomat anastomosis treatment, when the nail bin and the nail seat are opened, the limiting sliding piece is driven by rotation of the nail seat to move and cannot be buckled with the fixing ring instantly, after the nail seat is opened, the fixing ring synchronously drives the nail box to rotate, so that the fixing ring drives the nail box to rotate out of an opening of the nail bin, the nail box is automatically ejected from the nail bin, and the nail box is more convenient for medical staff to replace and operation time is reduced.

2. According to the firing structure of the electric anastomat, after the nail box is driven to rotate towards the nail bin along with the fixing ring, the first elastic piece is limited by the limiting frame to be compressed to generate a reset force, after the clamping buckle between the limiting sliding piece and the limiting fixing piece is separated, the fixing ring is driven by the reset force generated by the first elastic piece to drive the nail box to rotate towards the outside of the nail bin so as to automatically eject the nail box, and after the nail box is rotated into the nail bin, the arc groove of the nail box is propped against the second elastic piece, so that the second elastic piece is propped against the nail box to fix the nail box in the nail bin, and the nail box is prevented from shaking in the nail bin.

3. According to the firing structure of the electric anastomat, the flexible shaft and the soft sleeve are made of rubber materials, so that the flexible shaft and the soft sleeve can be bent, the power transmission of the flexible shaft to the firing shaft rod is not influenced, the anastomat can continue to work after the nail bin rotates relative to the slender body, and the use stability of the anastomat is improved.

Drawings

FIG. 1 is a schematic view of the structure of a staple cartridge of the present application;

FIG. 2 is a schematic diagram of an auxiliary mechanism according to the present application;

FIG. 3 is a schematic view of the structure of the limiting slider according to the present application;

FIG. 4 is a schematic view of the structure of the auxiliary gear of the present application;

FIG. 5 is a schematic view of a firing mechanism according to the present application;

FIG. 6 is a schematic view of the structure of the sliding block of the present application;

FIG. 7 is a schematic view of the structure of the firing member of the present application;

fig. 8 is a schematic view of the whole structure of the stapler of the present application.

In the figure: 1. a staple cartridge; 2. a nail seat; 3. an auxiliary mechanism; 31. fixing the shaft; 32. a fixing ring; 33. a staple box; 34. a slide rail; 35. a limit slider; 36. a limit fixing piece; 37. a fixing plate; 38. a telescopic rod; 39. a spring; 310. a first reversing gear; 311. a first belt; 312. a second reversing gear; 313. an auxiliary gear; 314. a second belt; 315. a limiting frame; 316. a first elastic sheet; 317. a second spring plate; 4. a firing mechanism; 41. a housing; 42. an elongated body; 43. fixing the sliding frame; 44. a linkage rod; 45. a motor; 46. a drive gear; 47. a firing shaft; 48. a soft sleeve; 49. a flexible shaft; 410. a partition plate; 411. a positioning frame; 412. a sliding block; 413. a firing member; 414. a cutting knife.

Detailed Description

The following description of the embodiments of the present application 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 application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

As described in the background art, the present application provides a firing structure of an electric stapler to solve the above technical problems.

In a typical embodiment of the application, as shown in fig. 1-8, a firing structure of an electric anastomat comprises a nail bin 1, a nail seat 2, an auxiliary mechanism 3 arranged on the nail bin 1 and a firing mechanism 4 arranged on the nail bin 1, wherein the nail bin 1 is in rotary fit with the nail seat 2, and a side wall surface of the nail bin 1 facing the nail seat 2 is an opening;

the auxiliary mechanism 3 comprises a fixed ring 32, a nail box 33 and a limiting slide piece 35, wherein the fixed ring 32 is in rotary fit in the nail bin 1, the nail box 33 is buckled on the fixed ring 32, the nail box 33 is a disposable replaceable anastomotic nail box, and the limiting slide piece 35 is arranged in the nail bin 1 in a sliding manner;

the firing mechanism 4 comprises a firing shaft lever 47, the firing shaft lever 47 is arranged beside the staple cartridge 1, the firing shaft lever 47 penetrates through the wall surface of the staple cartridge 1, and the firing shaft lever 47 extends into the staple cartridge 1 to control the anastomotic staples in the staple cartridge 33 to be fired;

after the nail box 33 is buckled on the fixing ring 32 and is placed in the nail bin 1, the fixing ring 32 is buckled with the limiting sliding piece 35, after the nail bin 1 and the nail seat 2 are closed to clamp human tissues, the rotation of the nail seat 2 drives the limiting sliding piece 35 to move, after the anastomotic nail in the nail box 33 is triggered, the nail seat 2 rotates to open with the nail bin 1, and the fixing ring 32 drives the nail box 33 to rotate so as to eject the nail box 33 from the nail bin 1.

When the application is used:

before using the stapler, firstly taking a nail box 33, putting the nail box 33 on a fixed ring 32 from an opening of a nail box 1, enabling the nail box 33 to be buckled on the fixed ring 32, then rotating the fixed ring 32 to drive the nail box 33 to be folded and unfolded into the nail box 1, at the moment, enabling the fixed ring 32 and the limit slider 35 to be buckled with each other so as to limit the rotation of the fixed ring 32, then when using the stapler, sending the nail box 1 and the nail seat 2 to an anastomotic site, controlling the stapler, closing the nail box 1 and the nail seat 2, enabling the anastomotic site of the nail box 1 and the nail seat 2 to be clamped and fixed, simultaneously driving the limit slider 35 to move along with the rotation of the nail seat 2 in the direction of the nail box 1, enabling the buckling between the limit slider 35 and the fixed ring 32 to be separated, at the moment, and enabling the nail box 33 on the fixed ring 32 not to rotate towards the outside of the nail box 1, then controlling the stapler to utilize the movement of the nail box 33 to drive the nail box 1 to move towards the direction of the nail box 33 so as to drive the nail box 33 to be processed, simultaneously, driving the rotation of the limit slider 35 between the nail box 2 and the nail box 2 to be pulled out of the nail box 1 along with the direction of the nail box 1, and the rotation of the nail box 2 is simultaneously, and the nail box 33 is driven to be automatically moved along with the rotation of the buckling between the limit slider 35 and the fixed ring 32, and the nail box 32 is separated along with the buckling between the fixing seat 2 and the fixing box 32, and the nail box 1 is folded and clamped, and the nail box 1 is clamped, the nail box is not rotated, the nail box is rotated, the nail box 32, and the nail box 32 is arranged, and the nail box 32 is rotated, the nail box 32 is arranged, and the nail box 32 is;

after anastomotic treatment, when the nail bin 1 and the nail seat 2 are unfolded, the limiting sliding piece 35 is separated from the fixed ring 32, and the rotation of the nail seat 2 drives the limiting sliding piece 35 not to be buckled with the fixed ring 32 instantly when moving, so that after the nail seat 2 is unfolded, the fixed ring 32 synchronously drives the nail box 33 to rotate, and the fixed ring 32 drives the nail box 33 to rotate out of an opening of the nail bin 1, so that the nail box 33 is automatically ejected from the nail bin 1, the nail box 33 is more convenient to be replaced by medical staff, and the operation time is reduced.

Further, as shown in fig. 1-3, the auxiliary mechanism 3 further includes a fixed shaft 31, the fixed shaft 31 is disposed in the nail bin 1, one end of the fixed shaft 31 is in running fit with the nail bin 1, the other end of the fixed shaft 31 is fixedly connected with the nail seat 2, a protrusion is disposed on the fixed ring 32, a groove is disposed on the nail box 33, the protrusion of the fixed ring 32 is matched with the groove of the nail box 33, a sliding rail 34 is fixedly mounted on the nail bin 1, a limit slider 35 is slidingly fitted on the sliding rail 34, a limit fixing member 36 is fixedly mounted on the fixed ring 32, and the limit fixing member 36 is buckled with the limit slider 35.

Preferably, a gear is arranged on the fixed shaft 31, a rack is arranged in the nail bin 1, the fixed shaft 31 is driven to rotate through rack-and-pinion transmission, the fixed shaft 31 drives the nail seat 2 to rotate, and the rack can be driven by a driving motor in the anastomat or in other conventional driving modes in the art to drive the rotation of the nail seat 2, which is conventional in the art and is not repeated herein.

When the nail box 33 is not in the nail box 1, the bulge of the fixing ring 32 in the initial state faces the opening of the nail box 1, when the nail box 33 needs to be placed in, the groove of the nail box 33 is aligned with the bulge of the fixing ring 32, the nail box 33 is inserted into the fixing ring 32, then the nail box 33 is manually pressed, the nail box 33 is pressed into the nail box 1, and at the moment, the limiting fixing piece 36 on the nail box 33 is buckled with the limiting sliding piece 35, so that the nail box 33 is fixed and cannot rotate.

Further, as shown in fig. 2-4, a fixing plate 37 is fixedly installed in the nail bin 1, a telescopic rod 38 is arranged between the fixing plate 37 and the limiting sliding piece 35, a fixed rod of the telescopic rod 38 is connected with the fixing plate 37, a stretching rod of the telescopic rod 38 is connected with the limiting sliding piece 35, a spring 39 is sleeved on the stretching rod of the telescopic rod 38, one end of the spring 39 is connected with the limiting sliding piece 35, and the other end of the spring 39 is connected with the fixed rod of the telescopic rod 38.

Further, as shown in fig. 3-4, the first reversing gear 310 is rotatably matched with the nail bin 1, a first belt 311 is tensioned on the shaft of the first reversing gear 310 and the fixed shaft 31, the second reversing gear 312 is rotatably matched with the nail bin 1, the second reversing gear 312 is meshed with the first reversing gear 310, the auxiliary gear 313 is rotatably matched with the nail bin 1, teeth are arranged on the limiting slider 35, the auxiliary gear 313 is meshed with the teeth of the limiting slider 35, and a second belt 314 is tensioned on the shaft of the auxiliary gear 313 and the shaft of the second reversing gear 312.

When the nail seat 2 rotates, the rotation of the nail seat 2 drives the fixed shaft 31 to rotate, the fixed shaft 31 drives the first belt 311 to rotate, the first belt 311 drives the first reversing gear 310 to rotate, the first reversing gear 310 drives the second reversing gear 312 to rotate, the second reversing gear 312 drives the second belt 314 to rotate, the second belt 314 drives the auxiliary gear 313 to rotate, the auxiliary gear 313 drives the limiting slider 35 to move on the sliding rail 34, the limiting slider 35 presses the telescopic rod 38 to shrink and compress the spring 39, and the clamping buckle between the limiting slider 35 and the limiting fixing piece 36 is separated.

Further, as shown in fig. 3-4, the fixed ring 32 and the nail bin 1 are fixedly provided with a limiting frame 315, the limiting frame 315 is opposite to the fixed shaft 31, the limiting frame 315 is provided with a first elastic sheet 316, the nail box 33 is provided with an arc slot, the nail bin 1 is fixedly provided with a second elastic sheet 317, the second elastic sheet 317 is opposite to the arc slot of the nail box 33, and the second elastic sheet 317 is matched with the arc slot of the nail box 33.

Wherein, after the fixing ring 32 drives the nail box 33 to rotate towards the inside of the nail box 1, the first elastic sheet 316 limited by the limiting frame 315 is compressed to generate a restoring force, and after the buckle between the limiting slider 35 and the limiting fixing piece 36 is separated, the restoring force generated by the first elastic sheet 316 drives the fixing ring 32 to drive the nail box 33 to rotate towards the outside of the nail box 1 so as to automatically eject the nail box 33, and after the nail box 33 is rotated into the nail box 1, the arc groove of the nail box 33 is propped against the second elastic sheet 317, so that the second elastic sheet 317 is propped against the nail box 33 to fix the nail box 33 in the nail box 1, thereby preventing the nail box 33 from shaking in the nail box 1.

Further, as shown in fig. 1, 5 and 8, the firing mechanism 4 further includes a housing 41, the housing 41 is disposed beside the staple cartridge 1, an elongated body 42 is disposed on the housing 41, the elongated body 42 is connected to the staple cartridge 1, the housing 41 is in communication with the elongated body 42, the elongated body 42 is in communication with the staple cartridge 1, a firing shaft 47 is disposed inside the elongated body 42, one end of the firing shaft 47 extends into the housing 41, and the other end of the firing shaft 47 extends through the elongated body 42 into the staple cartridge 1.

Further, as shown in fig. 5-6, a fixed carriage 43 is fixedly installed in the casing 41, a linkage rod 44 is slidably matched on the fixed carriage 43, the linkage rod 44 is fixedly connected with a firing shaft rod 47, teeth are arranged at the other end of the linkage rod 44, a motor 45 is fixedly installed in the casing 41, a driving gear 46 is fixedly installed on the shaft of the motor 45, and the driving gear 46 is meshed with the teeth of the linkage rod 44.

Wherein, the motor 45 is started, the motor 45 drives the driving gear 46 to rotate, the driving gear 46 drives the linkage rod 44 to move on the fixed sliding frame 43, and the fixed sliding frame 43 drives the firing shaft rod 47 to move, so that the firing shaft rod 47 moves from the inside of the slender body 42 to the inside of the nail bin 1.

Further, as shown in FIGS. 6-7, a soft sleeve 48 is disposed within the elongate body 42, one end of the soft sleeve 48 is fixedly mounted with the elongate body 42, the other end of the soft sleeve 48 is fixedly mounted with the staple cartridge 1, the firing shaft 47 is opposite the soft sleeve 48, the soft sleeve 48 is opposite the staple cartridge 33, a flexible shaft 49 is slidably disposed within the soft sleeve 48, one end of the flexible shaft 49 is connected with the firing shaft 47, and the other end of the flexible shaft 49 is opposite the staple cartridge 33.

Further, the flexible shaft 49 and the soft sleeve 48 are made of rubber, so that the flexible shaft 49 and the soft sleeve 48 can be bent, the power transmission of the flexible shaft 49 to the firing shaft rod 47 is not influenced, the stapler can continue to work after the staple cartridge 1 rotates relative to the slender body 42, and the use stability of the stapler is improved.

Further, as shown in fig. 6-7, a partition plate 410 is fixedly installed in the nail box 33, a positioning frame 411 is fixedly installed on the partition plate 410, a sliding block 412 is slidably matched with the positioning frame 411, the sliding block 412 penetrates through the partition plate 410, a firing member 413 is fixedly installed on the sliding block 412, the firing member 413 is located below the partition plate 410, a cutting knife 414 is fixedly installed on the firing member 413, and the cutting knife 414 penetrates through the nail box 33.

Along with the movement of the firing shaft 47, the firing shaft 47 pushes the flexible shaft 49 to move in the flexible sleeve 48, the flexible shaft 49 drives the sliding block 412 to move on the positioning frame 411, the sliding block 412 drives the firing member 413 to move, and the firing member 413 drives the cutting knife 414 to move, so that the cutting knife 414 cuts the anastomotic site, and the firing member 413 extrudes and fires the anastomotic nails in the nail box 33 to anastomose the anastomotic site.

Working principle:

before using the anastomat, firstly, a nail box 33 is taken out and put on a fixed ring 32 from an opening of a nail bin 1, so that the nail box 33 is buckled on the fixed ring 32, then the fixed ring 32 is rotated to drive the nail box 33 to be retracted into the nail bin 1, at the moment, the fixed ring 32 and a limiting slide piece 35 are buckled mutually to limit the rotation of the fixed ring 32, then when the anastomat is used, the nail bin 1 and a nail seat 2 are sent to an anastomotic site, the nail bin 1 and the nail seat 2 are folded when the anastomat is operated, the nail bin 1 and the nail seat 2 are clamped and fixed, at the same time, when the nail seat 2 rotates towards the nail bin 1, the rotation of the nail seat 2 drives the limiting slide piece 35 to move, so that the buckling between the limiting slide piece 35 and the fixed ring 32 is separated, at the moment, but because the nail seat 2 and the nail bin 1 are folded and clamped, the nail box 33 on the fixed ring 32 cannot rotate outwards of the nail bin 1, then the stapler is controlled to move towards the direction of the nail box 33 by utilizing the firing shaft rod 47 to drive the nail box 33 to cut and anastomose the anastomotic site, after the anastomotic process, the nail bin 1 and the nail seat 2 are opened, so that the limiting slide piece 35 is separated from the fixed ring 32, the rotation of the nail seat 2 drives the limiting slide piece 35 to move, the limiting slide piece 35 and the fixed ring 32 cannot be blocked and buckled again instantly, after the nail seat 2 rotates, the fixed ring 32 synchronously drives the nail box 33 to rotate, so that the fixed ring 32 drives the nail box 33 to rotate out of the opening of the nail bin 1, the anastomat is withdrawn after the anastomotic process, the used nail box 33 is automatically ejected from the nail bin 1, after the anastomotic process, when the nail bin 1 and the nail seat 2 are opened, the limiting slide piece 35 cannot be blocked and buckled with the fixed ring 32 instantly when the rotation driving limiting slide piece 35 of the nail seat 2 moves, after the nail seat 2 is opened, the fixing ring 32 synchronously drives the nail box 33 to rotate, so that the fixing ring 32 drives the nail box 33 to rotate out of the opening of the nail bin 1, and the nail box 33 is automatically ejected out of the nail bin 1, thereby being more convenient for medical staff to replace the nail box 33 and reducing the operation time;

wherein, when no nail box 33 exists in the nail bin 1, the bulge of the fixing ring 32 in the initial state faces the opening of the nail bin 1, when the nail box 33 needs to be placed in, the groove of the nail box 33 is aligned with the bulge of the fixing ring 32, the nail box 33 is inserted into the fixing ring 32, then the nail box 33 is manually pressed, the nail box 33 is pressed into the nail bin 1, at the moment, the limit fixing piece 36 on the nail box 33 is buckled with the limit sliding piece 35, so that the nail box 33 cannot rotate, and when the nail seat 2 rotates, the rotation of the nail seat 2 drives the fixed shaft 31 to rotate, the fixed shaft 31 drives the first belt 311 to rotate, the first belt 311 drives the first reversing gear 310 to rotate, the first reversing gear 310 drives the second reversing gear 312 to rotate, the second reversing gear 312 drives the second belt 314 to rotate, the second belt 314 drives the auxiliary gear 313 to rotate, the auxiliary gear 313 drives the limiting slider 35 to move on the sliding rail 34, the limiting slider 35 presses the telescopic rod 38 to shrink and compress the spring 39, so that the clamping buckle between the limiting slider 35 and the limiting fixing piece 36 is separated, then, after the fixing ring 32 drives the nail box 33 to rotate towards the nail box 1, the first elastic piece 316 is limited by the limiting frame 315 to be compressed to generate a reset force, after the clamping buckle between the limiting slider 35 and the limiting fixing piece 36 is separated, the reset force generated by the first elastic piece 316 drives the fixing ring 32 to drive the nail box 33 to rotate towards the outside of the nail box 1, so that the nail box 33 is automatically ejected, and after the nail box 33 is rotated into the nail box 1, the arc groove of the nail box 33 is propped against the second elastic piece 317, so that the second elastic piece 317 is propped against the nail box 33 to be firmly fixed in the nail box 1, and the nail box 33 is prevented from shaking in the nail box 1;

meanwhile, when the cutting anastomosis is performed, the motor 45 is started, the motor 45 drives the driving gear 46 to rotate, the driving gear 46 drives the linkage rod 44 to move on the fixed sliding frame 43, the fixed sliding frame 43 drives the firing shaft rod 47 to move, the firing shaft rod 47 moves from the inside of the slender body 42 to the inside of the nail bin 1, along with the movement of the firing shaft rod 47, the firing shaft rod 47 pushes the flexible shaft 49 to move in the soft sleeve 48, the flexible shaft 49 drives the sliding block 412 to move on the positioning frame 411, the sliding block 412 drives the firing piece 413 to move, the firing piece 413 drives the cutting knife 414 to move, the cutting knife 414 cuts an anastomosis, and the firing piece 413 extrudes and fires the anastomosis nails in the nail box 33 to perform the anastomosis.

Although embodiments of the present application 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 application, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides an electronic anastomat firing structure, includes nail storehouse (1), nail seat (2), sets up complementary unit (3) on nail storehouse (1), set up firing mechanism (4) on nail storehouse (1), its characterized in that:

the nail bin (1) is in running fit with the nail seat (2), and a side wall surface of the nail bin (1) facing the nail seat (2) is an opening;

the auxiliary mechanism (3) comprises a fixed ring (32), a nail box (33) and a limiting slide piece (35), wherein the fixed ring (32) is in running fit in the nail bin (1), the nail box (33) is buckled on the fixed ring (32), the nail box (33) is a disposable replaceable anastomotic nail box, and the limiting slide piece (35) is arranged in the nail bin (1) in a sliding manner;

the firing mechanism (4) comprises a firing shaft lever (47), the firing shaft lever (47) is arranged beside the staple cartridge (1), the firing shaft lever (47) penetrates through the wall surface of the staple cartridge (1), and the firing shaft lever (47) stretches into the staple cartridge (1) to control the anastomosis staples in the staple cartridge (33) to be fired;

after the nail box (33) is buckled on the fixed ring (32) and placed in the nail bin (1), the fixed ring (32) is buckled with the limiting slide piece (35), after the nail bin (1) and the nail seat (2) are folded to clamp human tissues, the rotation of the nail seat (2) drives the limiting slide piece (35) to move, after the anastomosis nail in the nail box (33) is fired, the nail seat (2) rotates and opens between the nail bin (1), and the fixed ring (32) drives the nail box (33) to rotate so as to eject the nail box (33) from the inside of the nail bin (1).

2. The firing mechanism of an electric stapler as set forth in claim 1, wherein:

the auxiliary mechanism (3) further comprises a fixed shaft (31), the fixed shaft (31) is arranged in the nail bin (1), one end of the fixed shaft (31) is in running fit with the nail bin (1), the other end of the fixed shaft (31) is fixedly connected with the nail seat (2), a bulge is arranged on the fixed ring (32), a groove is formed in the nail box (33), the bulge of the fixed ring (32) is matched with the groove of the nail box (33), a sliding rail (34) is fixedly arranged on the nail bin (1), a limiting slider (35) is in sliding fit with the sliding rail (34), a limiting fixing piece (36) is fixedly arranged on the fixed ring (32), and the limiting fixing piece (36) is buckled with the limiting slider (35).

3. The firing mechanism of an electric stapler as set forth in claim 2, wherein:

fixed plate (37) is fixedly installed in nail storehouse (1), fixed plate (37) with be provided with telescopic link (38) between spacing slider (35), the dead lever of telescopic link (38) with fixed plate (37) link to each other, the extension rod of telescopic link (38) with spacing slider (35) link to each other, the cover is equipped with spring (39) on the extension rod of telescopic link (38), the one end of spring (39) with spacing slider (35) link to each other, the other end of spring (39) with the dead lever of telescopic link (38) links to each other.

4. The firing mechanism of an electric stapler according to claim 3, wherein:

the nail bin (1) is rotationally matched with a first reversing gear (310), a first belt (311) is tensioned on the fixed shaft (31) through a shaft of the first reversing gear (310), a second reversing gear (312) is rotationally matched with the nail bin (1), the second reversing gear (312) is meshed with the first reversing gear (310), an auxiliary gear (313) is rotationally matched with the nail bin (1), teeth are arranged on the limiting slider (35), the auxiliary gear (313) is meshed with the teeth of the limiting slider (35), and a second belt (314) is tensioned on the shaft of the auxiliary gear (313) and the shaft of the second reversing gear (312).

5. The firing mechanism of an electric stapler as set forth in claim 4, wherein:

the fixed ring (32) with all fixed mounting has restriction frame (315) on nail storehouse (1), restriction frame (315) with dead axle (31) are relative, be provided with first shell fragment (316) on restriction frame (315), the arc groove has been seted up on nail box (33), fixed mounting has second shell fragment (317) on nail storehouse (1), second shell fragment (317) with the arc groove of nail box (33) is relative, second shell fragment (317) with the arc groove looks adaptation of nail box (33).

6. The firing mechanism of an electric stapler as set forth in claim 5, wherein:

the firing mechanism (4) further comprises a shell (41), the shell (41) is arranged beside the nail bin (1), an elongated body (42) is arranged on the shell (41), the elongated body (42) is connected with the nail bin (1), the shell (41) is communicated with the elongated body (42), the elongated body (42) is communicated with the nail bin (1), the firing shaft rod (47) is located inside the elongated body (42), one end of the firing shaft rod (47) extends to the inside of the shell (41), and the other end of the firing shaft rod (47) penetrates through the elongated body (42) to the inside of the nail bin (1).

7. The firing mechanism of an electric stapler as set forth in claim 6, wherein:

fixed carriage (43) are fixedly installed in casing (41), sliding fit has gangbar (44) on fixed carriage (43), gangbar (44) with firing axostylus axostyle (47) are fixed continuous, the other end of gangbar (44) is provided with the tooth, fixed mounting has motor (45) in casing (41), epaxial fixed mounting of motor (45) has driving gear (46), driving gear (46) with the tooth of gangbar (44) meshes.

8. The electric stapler firing structure of claim 7, wherein:

a soft sleeve (48) is arranged in the slender body (42), one end of the soft sleeve (48) is fixedly installed with the slender body (42), the other end of the soft sleeve (48) is fixedly installed with the nail bin (1), the firing shaft lever (47) is opposite to the soft sleeve (48), the soft sleeve (48) is opposite to the nail box (33), a flexible shaft (49) is arranged in the soft sleeve (48) in a sliding mode, one end of the flexible shaft (49) is connected with the firing shaft lever (47), and the other end of the flexible shaft (49) is opposite to the nail box (33).

9. The electric stapler firing structure of claim 8, wherein:

the nail box (33) internally and fixedly provided with a baffle (410), fixedly provided with a locating rack (411) on the baffle (410), sliding fit on the locating rack (411) is provided with a sliding block (412), the sliding block (412) penetrates through the baffle (410), the sliding block (412) is fixedly provided with a firing piece (413), the firing piece (413) is positioned below the baffle (410), and fixedly provided with a cutting knife (414) on the firing piece (413), and the cutting knife (414) penetrates through the nail box (33).