Electric stapler firing structure

Abstract

The present invention relates to the technical field of staplers, and discloses an electric stapler firing structure. After stapler staple processing, when the stapler magazine and the stapler seat are opened, the limiting slide is separated from the fixing ring, and the rotation of the stapler seat drives the limiting slide to move without instantly locking with the fixing ring. After the stapler seat is opened, the fixing ring synchronously drives the staple box to rotate, so that the fixing ring drives the staple box to rotate out of the opening of the stapler magazine, thereby automatically popping out the staple box from the stapler magazine, making it more convenient for medical staff to replace the staple box and reducing the operation time.

Description

Technical Field

[0001] The present invention relates to the technical field of staplers, and in particular to a firing structure of an electric stapler. Background Art

[0002] Laparoscopic staplers are used for suturing, cutting and severing tissues and organs during laparoscopic and open surgery. They cut and suture tissues by moving forward steadily and at a uniform speed; the rotary motion connection mechanism of its micro-motor is converted into forward and backward motion, and the cutting and pushing of titanium nails into shape will not be fast or slow at times, and the forming force applied to the titanium nails is consistent. The titanium nail forming state is also more stable and the consistency is better, which can greatly reduce the problem of poor titanium nail forming and can effectively reduce the occurrence of medical accidents such as anastomotic bleeding and anastomotic leakage.

[0003] In the existing staplers, such as the Chinese patent application CN111803164A, the screw rod is arranged parallel to the firing push rod, one end of the screw rod is meshed with the transmission gear through a coupling component, the transmission gear can be slid along the positioning axis between the screw rod and the firing gear by the toggle assembly, a transmission assembly is provided between the transmission gear and the drive motor, the transmission gear is always coupled to the transmission assembly and driven by the drive motor to rotate around the positioning axis, the toggle assembly toggle the transmission gear to mesh with the screw rod through the coupling component and separate from the firing gear, the transmission gear controls the screw rod to perform the clamping action, the toggle assembly toggle the transmission gear to mesh with the firing gear and separate from the screw rod, the transmission gear controls the firing push rod to perform the firing action. According to the structure of the present invention, the screw rod can perform the clamping action and the firing push rod can perform the firing action by toggling the transmission gear to different positions, and the toggle assembly can be used to switch according to needs, and the electric mode of performing the clamping action solves the purpose that different people can clamp the tissue to be stapled at a uniform clamping distance.

[0004] However, there are still the following problems: when the stapler is replaced with the staple box, the medical staff needs to manually buckle the staple box locked in the stapler and then take out the staple box. If the stapler needs to be used on a patient multiple times, such replacement is inconvenient and the operation time is long. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an electric stapler firing structure, which has the advantages of enabling medical staff to replace staple boxes more conveniently and reducing operation time. It solves the problem that when replacing the staple box, medical staff need to manually buckle out the staple box locked in the staple box and then take out the staple box. If the stapler needs to be used for a patient multiple times, such replacement is inconvenient and the operation time is long.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: an electric stapler firing structure, comprising a nail magazine, a nail seat, an auxiliary mechanism arranged on the nail magazine, and a firing mechanism arranged on the nail magazine, wherein the nail magazine and the nail seat are rotatably matched, and a wall surface on one side of the nail magazine facing the nail seat is an open opening;

[0007] The auxiliary mechanism comprises a fixing ring, a nail box, and a limiting slide, wherein the fixing ring is rotatably fitted in the nail magazine, the nail box is buckled on the fixing ring, the nail box is a disposable and replaceable stapler, and the limiting slide is slidably arranged in the nail magazine;

[0008] The firing mechanism comprises a firing shaft, which is arranged beside the staple cartridge, passes through the wall of the staple cartridge, and extends into the staple cartridge to control the firing of the staples in the staple cartridge;

[0009] After the nail box is buckled on the fixing ring and placed in the nail magazine, the fixing ring is buckled with the limiting slide. After the nail magazine and the nail seat are closed to clamp the human tissue, the rotation of the nail seat drives the limiting slide to move. After the anastomotic staples in the nail box are fired, the nail seat rotates and opens between the nail magazine, and the fixing ring drives the nail box to rotate to pop the nail box out of the nail magazine.

[0010] Preferably, the auxiliary mechanism also includes a fixed shaft, which is arranged in the nail magazine, one end of the fixed shaft is rotatably matched with the nail magazine, and the other end of the fixed shaft is fixedly connected to the nail seat, the fixing ring is provided with a protrusion, and the nail box is provided with a groove, the protrusion of the fixing ring is adapted to the groove of the nail box, a slide rail is fixedly installed on the nail magazine, the slide rail is slidably matched with the limiting slide, and a limiting fixing part is fixedly installed on the fixing ring, and the limiting fixing part is snapped with the limiting slide.

[0011] Preferably, a fixing plate is fixedly installed in the nail magazine, a telescopic rod is arranged between the fixing plate and the limiting slide, the fixed rod of the telescopic rod is connected to the fixing plate, the extending rod of the telescopic rod is connected to the limiting slide, a spring is sleeved on the extending rod of the telescopic rod, one end of the spring is connected to the limiting slide, and the other end of the spring is connected to the fixed rod of the telescopic rod.

[0012] Preferably, a first reversing gear is rotatably coupled in the nail magazine, a first belt is tensioned between the shaft of the first reversing gear and the fixed shaft, a second reversing gear is rotatably coupled in the nail magazine, the second reversing gear is meshed with the first reversing gear, an auxiliary gear is rotatably coupled in the nail magazine, teeth are provided on the limiting slide, the auxiliary gear is meshed with the teeth of the limiting slide, and a second belt is tensioned between the shaft of the auxiliary gear and the shaft of the second reversing gear.

[0013] Preferably, a limiting frame is fixedly mounted on the fixing ring and the nail magazine, the limiting frame is opposite to the fixed axis, a first spring sheet is arranged on the limiting frame, an arc groove is opened on the nail box, a second spring sheet is fixedly mounted on the nail magazine, the second spring sheet is opposite to the arc groove of the nail box, and the second spring sheet is adapted to the arc groove of the nail box.

[0014] Preferably, the firing mechanism also includes a shell, which is arranged next to the nail magazine, and a slender body is arranged on the shell, and the slender body is connected to the nail magazine, the shell is in communication with the slender body, and the slender body is in communication with the nail magazine, and the firing shaft is located inside the slender body, one end of the firing shaft extends to the inside of the shell, and the other end of the firing shaft passes through the slender body and extends to the inside of the nail magazine.

[0015] Preferably, a fixed slide is fixedly installed in the shell, a linkage rod is slidably fitted on the fixed slide, the linkage rod is fixedly connected to the firing shaft, the other end of the linkage rod is provided with teeth, a motor is fixedly installed in the shell, a driving gear is fixedly installed on the shaft of the motor, and the driving gear is meshed with the teeth of the linkage rod.

[0016] Preferably, a soft sleeve is provided in the slender body, one end of the soft sleeve is fixedly mounted on the slender body, the other end of the soft sleeve is fixedly mounted on the nail magazine, the firing shaft is opposite to the soft sleeve, the soft sleeve is opposite to the nail box, a soft shaft is slidably provided in the soft sleeve, one end of the soft shaft is connected to the firing shaft, and the other end of the soft shaft is opposite to the nail box.

[0017] Preferably, a partition is fixedly installed in the nail box, a positioning frame is fixedly installed on the partition, a sliding block is slidably fitted on the positioning frame, the sliding block passes through the partition, a firing piece is fixedly installed on the sliding block, the firing piece is located below the partition, a cutting knife is fixedly installed on the firing piece, and the cutting knife passes through the nail box.

[0018] Compared with the prior art, the present invention provides an electric stapler firing structure, which has the following beneficial effects:

[0019] 1. The firing structure of the electric stapler, after the stapler staples, when the nail magazine and the nail seat are opened, the limiting slide is separated from the fixed ring, and the rotation of the nail seat drives the limiting slide to move without instantly locking with the fixed ring. After the nail seat is opened, the fixed ring synchronously drives the nail box to rotate, so that the fixed ring drives the nail box to rotate out of the open mouth of the nail magazine, thereby automatically popping out the nail box from the nail magazine, making it more convenient for medical staff to replace the nail box and reducing the operation time.

[0020] 2. The firing structure of the electric stapler drives the nail box to rotate into the nail magazine with the fixed ring. The first spring sheet is restricted by the limiting frame and will be compressed to generate a reset force. After the buckle between the limiting slide and the limiting fixing member is separated, the reset force generated by the first spring sheet drives the fixed ring to drive the nail box to rotate outside the nail magazine to automatically pop out the nail box. After the nail box is transferred into the nail magazine, the arc groove of the nail box will abut against the second spring sheet, so that the second spring sheet abuts against the nail box, so as to stabilize the nail box in the nail magazine and prevent the nail box from shaking in the nail magazine.

[0021] 3. The firing structure of the electric stapler, by setting the flexible shaft and the flexible sleeve to be made of rubber material, allows the flexible shaft and the flexible sleeve to bend without affecting the power transmission of the flexible shaft to the firing shaft rod, thereby ensuring that the stapler can continue to work after the stapler magazine rotates relative to the slender body, thereby improving the stability of the stapler. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of the nail magazine of the present invention;

[0023] Figure 2 It is a schematic diagram of the auxiliary mechanism structure of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the position-limiting slide of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the auxiliary gear of the present invention;

[0026] Figure 5 It is a schematic diagram of the firing mechanism structure of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the sliding block of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the firing member of the present invention;

[0029] Figure 8 It is a schematic diagram of the overall structure of the stapler of the present invention.

[0030] In the figure: 1, nail magazine; 2, nail seat; 3, auxiliary mechanism; 31, fixed axis; 32, fixed ring; 33, nail box; 34, slide rail; 35, limit slide; 36, limit fixing member; 37, fixed plate; 38, telescopic rod; 39, spring; 310, first reversing gear; 311, first belt; 312, second reversing gear; 313, auxiliary gear; 314, second belt; 315, limit frame; 316, first spring piece; 317, second spring piece; 4, firing mechanism; 41, shell; 42, slender body; 43, fixed slide; 44, linkage rod; 45, motor; 46, driving gear; 47, firing shaft; 48, soft sleeve; 49, soft shaft; 410, partition; 411, positioning frame; 412, sliding block; 413, firing member; 414, cutting knife. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes an electric stapler firing structure.

[0033] In a typical implementation of the present application, Figure 1-8 As shown, an electric stapler firing structure comprises a stapler 1, a stapler seat 2, an auxiliary mechanism 3 arranged on the stapler 1, and a firing mechanism 4 arranged on the stapler 1, wherein the stapler 1 and the stapler seat 2 are rotatably matched, and a wall surface on one side of the stapler 1 facing the stapler seat 2 is an open opening;

[0034] The auxiliary mechanism 3 includes a fixing ring 32, a nail box 33, and a limiting slide 35. The fixing ring 32 is rotatably fitted in the nail magazine 1, the nail box 33 is buckled on the fixing ring 32, the nail box 33 is a disposable and replaceable anastomosis nail box, and the limiting slide 35 is slidably arranged in the nail magazine 1;

[0035] The firing mechanism 4 includes a firing shaft 47, which is disposed beside the staple cartridge 1, and penetrates through the wall of the staple cartridge 1. The firing shaft 47 extends into the staple cartridge 1 to control the firing of the staples in the staple box 33;

[0036] After the nail box 33 is buckled on the fixing ring 32 and placed in the nail magazine 1, the fixing ring 32 is buckled with the limiting slide 35. After the nail magazine 1 and the nail seat 2 are closed to clamp the human tissue, the rotation of the nail seat 2 drives the limiting slide 35 to move. After the staples in the nail box 33 are fired, the nail seat 2 rotates and opens between the nail magazine 1, and the fixing ring 32 drives the nail box 33 to rotate to pop the nail box 33 out of the nail magazine 1.

[0037] When using the present invention:

[0038] Before using the stapler, first take a staple box 33 and put it on the fixing ring 32 from the open mouth of the stapler magazine 1 so that the stapler magazine 33 is buckled on the fixing ring 32, and then the fixing ring 32 is rotated to drive the stapler magazine 33 to be retracted into the stapler magazine 1. At this time, the fixing ring 32 and the limiting slide 35 are buckled with each other to limit the rotation of the fixing ring 32. Then, when using the stapler, the stapler magazine 1 and the nail seat 2 are sent to the anastomosis. When operating the stapler, the stapler magazine 1 and the nail seat 2 are closed so that the stapler magazine 1 and the nail seat 2 are clamped and fixed at the anastomosis. At the same time, as the nail seat 2 rotates toward the direction of the stapler magazine 1, the rotation of the nail seat 2 simultaneously drives the limiting slide 35 to move, so that the buckle between the limiting slide 35 and the fixing ring 32 is separated. However, at this time, because the nail seat 2 and the stapler magazine 1 are closed and clamped, Therefore, the fixing ring 32 will not rotate, so that the nail box 33 on the fixing ring 32 will not rotate out of the nail magazine 1, and then the stapler is controlled to use the firing shaft 47 to move toward the nail box 33 to drive the nail box 33 to cut and staple the anastomosis. After the anastomosis, the nail magazine 1 and the nail seat 2 are opened. Therefore, the limiting slide 35 and the fixing ring 32 are separated at this time, and the rotation of the nail seat 2 drives the limiting slide 35 to move. The limiting slide 35 and the fixing ring 32 will not be locked again instantly. After the nail seat 2 rotates, 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 open mouth of the nail magazine 1. As the stapler is removed after the anastomosis, the used nail box 33 automatically pops out of the nail magazine 1.

[0039] After the stapler is used for anastomosis, when the nail magazine 1 and the nail seat 2 are opened, the limiting slide 35 is separated from the fixing ring 32, and the rotation of the nail seat 2 drives the limiting slide 35 to move without instantly locking with the fixing ring 32. Instead, 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 be turned out from the open mouth of the nail magazine 1, thereby automatically popping out the nail box 33 from the nail magazine 1, making it easier for medical staff to replace the nail box 33 and reducing the operation time.

[0040] Further, such as Figure 1-3As shown, the auxiliary mechanism 3 also includes a fixed shaft 31, which is arranged in the nail magazine 1, one end of the fixed shaft 31 is rotatably matched with the nail magazine 1, and the other end of the fixed shaft 31 is fixedly connected to the nail seat 2, a protrusion is provided on the fixing ring 32, and a groove is provided on the nail box 33, the protrusion of the fixing ring 32 is adapted to the groove of the nail box 33, a slide rail 34 is fixedly installed on the nail magazine 1, a limiting slide 35 is slidably matched on the slide rail 34, and a limiting fixing part 36 is fixedly installed on the fixing ring 32, and the limiting fixing part 36 is snapped with the limiting slide 35.

[0041] Preferably, a gear is provided on the fixed shaft 31, and a rack is provided in the nail magazine 1. The fixed shaft 31 is driven to rotate through the rack and gear transmission, so that the fixed shaft 31 drives the nail seat 2 to rotate, and the rack can be driven by a driving motor in the stapler, or other conventional driving methods in the field, to drive the rotation of the nail seat 2. These are all conventional settings in the field and will not be repeated here.

[0042] Among them, when there is no nail box 33 in the nail magazine 1, the protrusion of the fixing ring 32 in the initial state faces the open mouth of the nail magazine 1. When the nail box 33 needs to be placed, the groove of the nail box 33 is aligned with the protrusion of the fixing ring 32, and the nail box 33 is inserted into the fixing ring 32. Then, the nail box 33 is manually pressed to press the nail box 33 into the nail magazine 1. At this time, the limiting fixing piece 36 on the nail box 33 is locked with the limiting sliding piece 35 to fix the nail box 33 and prevent it from rotating.

[0043] Further, such as Figure 2-4 As shown, a fixed plate 37 is fixedly installed in the nail magazine 1, and a telescopic rod 38 is arranged between the fixed plate 37 and the limiting slide 35. The fixed rod of the telescopic rod 38 is connected to the fixed plate 37, and the extending rod of the telescopic rod 38 is connected to the limiting slide 35. A spring 39 is sleeved on the extending rod of the telescopic rod 38, one end of the spring 39 is connected to the limiting slide 35, and the other end of the spring 39 is connected to the fixed rod of the telescopic rod 38.

[0044] Further, such as Figure 3-4 As shown, a first reversing gear 310 is rotatably coupled in the nail magazine 1, and a first belt 311 is tensioned on the axis of the first reversing gear 310 and the fixed axis 31, a second reversing gear 312 is rotatably coupled in the nail magazine 1, and the second reversing gear 312 is meshed with the first reversing gear 310, an auxiliary gear 313 is rotatably coupled in the nail magazine 1, teeth are provided on the limiting slide 35, the auxiliary gear 313 is meshed with the teeth of the limiting slide 35, and a second belt 314 is tensioned on the axis of the auxiliary gear 313 and the axis of the second reversing gear 312.

[0045] Among them, 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 slide 35 to move on the slide rail 34, the limiting slide 35 presses the telescopic rod 38 to contract and compress the spring 39, so that the buckle between the limiting slide 35 and the limiting fixing member 36 is separated.

[0046] Further, such as Figure 3-4 As shown, a limiting frame 315 is fixedly installed on the fixing ring 32 and the nail magazine 1, the limiting frame 315 is opposite to the fixed axis 31, a first spring piece 316 is arranged on the limiting frame 315, an arc groove is opened on the nail box 33, a second spring piece 317 is fixedly installed on the nail magazine 1, the second spring piece 317 is opposite to the arc groove of the nail box 33, and the second spring piece 317 is adapted to the arc groove of the nail box 33.

[0047] Among them, as the fixing ring 32 drives the nail box 33 to rotate into the nail magazine 1, the first spring piece 316 is restricted by the limiting frame 315 and will be compressed to generate a restoring force. After the buckle between the limiting slide 35 and the limiting fixing piece 36 is separated, the restoring force generated by the first spring piece 316 drives the fixing ring 32 to drive the nail box 33 to rotate toward the outside of the nail magazine 1, so as to automatically pop out the nail box 33. After the nail box 33 is transferred into the nail magazine 1, the arc groove of the nail box 33 will abut against the second spring piece 317, so that the second spring piece 317 abuts against the nail box 33, so as to stabilize the nail box 33 in the nail magazine 1 and prevent the nail box 33 from shaking in the nail magazine 1.

[0048] Further, such as Figure 1 , Figure 5 , Figure 8 As shown, the firing mechanism 4 also includes a shell 41, which is arranged next to the nail magazine 1. A slender body 42 is arranged on the shell 41, and the slender body 42 is connected to the nail magazine 1. The shell 41 is in communication with the slender body 42, and the slender body 42 is in communication with the nail magazine 1. A firing shaft 47 is located inside the slender body 42, one end of the firing shaft 47 extends to the inside of the shell 41, and the other end of the firing shaft 47 passes through the slender body 42 and extends to the inside of the nail magazine 1.

[0049] Further, such as Figure 5-6 As shown, a fixed slide 43 is fixedly installed in the shell 41, and a linkage rod 44 is slidably fitted on the fixed slide 43. The linkage rod 44 is fixedly connected to the firing shaft 47, and the other end of the linkage rod 44 is provided with teeth. A motor 45 is fixedly installed in the shell 41, and a driving gear 46 is fixedly installed on the shaft of the motor 45, and the driving gear 46 meshes with the teeth of the linkage rod 44.

[0050] 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 slide 43, and the fixed slide 43 drives the firing shaft 47 to move, so that the firing shaft 47 moves from the slender body 42 to the nail magazine 1.

[0051] Further, such as Figure 6-7 As shown, a soft sleeve 48 is provided 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 magazine 1, the firing shaft 47 is opposite to the soft sleeve 48, the soft sleeve 48 is opposite to the nail box 33, and a soft shaft 49 is slidably provided in the soft sleeve 48, one end of the soft shaft 49 is connected to the firing shaft 47, and the other end of the soft shaft 49 is opposite to the nail box 33.

[0052] Furthermore, the soft shaft 49 and the soft sleeve 48 are both made of rubber material, so that the soft shaft 49 and the soft sleeve 48 can be bent without affecting the power transmission of the soft shaft 49 to the firing shaft 47, ensuring that the stapler can continue to work after the nail magazine 1 rotates relative to the slender body 42, thereby improving the stability of the stapler.

[0053] Further, such as Figure 6-7 As shown, a partition 410 is fixedly installed in the nail box 33, a positioning frame 411 is fixedly installed on the partition 410, a sliding block 412 is slidably matched on the positioning frame 411, the sliding block 412 passes through the partition 410, a firing piece 413 is fixedly installed on the sliding block 412, the firing piece 413 is located below the partition 410, a cutting knife 414 is fixedly installed on the firing piece 413, and the cutting knife 414 passes through the nail box 33.

[0054] Among them, as the firing shaft 47 moves, the firing shaft 47 pushes the soft shaft 49 to move in the soft sleeve 48, the soft 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, the firing member 413 drives the cutting knife 414 to move, so that the cutting knife 414 cuts the anastomosis, and the firing member 413 squeezes and fires the anastomotic staples in the staple box 33 to perform anastomosis processing on the anastomosis.

[0055] Working principle:

[0056] Before using the stapler, first take a staple box 33, put it on the fixing ring 32 from the open mouth of the stapler magazine 1, so that the staple box 33 is buckled on the fixing ring 32, and then rotate the fixing ring 32 to drive the staple box 33 to be retracted into the stapler magazine 1. At this time, the fixing ring 32 and the limiting slide 35 are buckled with each other to limit the rotation of the fixing ring 32. Then, when using the stapler, the stapler magazine 1 and the stapler seat 2 are sent to the anastomosis. When the stapler is operated, the stapler magazine 1 and the stapler seat 2 are closed, so that the stapler magazine 1 and the stapler seat 2 are engaged. The nail holder 2 is clamped and fixed, and as the nail holder 2 rotates toward the nail magazine 1, the rotation of the nail holder 2 drives the limiting slide 35 to move, so that the buckle between the limiting slide 35 and the fixing ring 32 is separated. However, at this time, because the nail holder 2 and the nail magazine 1 are closed and clamped, the fixing ring 32 will not rotate, so that the nail box 33 on the fixing ring 32 will not rotate out of the nail magazine 1. Then, the stapler is controlled to use the firing shaft 47 to move toward the nail box 33 to drive the nail box 33 to cut and staple the stapled part. After the stapler 2 is stapled, the stapler 1 and the stapler seat 2 are opened. At this time, the limiting slide 35 and the fixing ring 32 are separated. The rotation of the stapler seat 2 drives the limiting slide 35 to move. The limiting slide 35 and the fixing ring 32 will not be locked again instantly. After the stapler seat 2 rotates, the fixing ring 32 synchronously drives the stapler box 33 to rotate, so that the fixing ring 32 drives the stapler box 33 to rotate out of the open mouth of the stapler 1. As the stapler is removed after the stapler is stapled, the used stapler box 33 automatically pops out of the stapler 1. After the stapler staples the stapler 2, when the staple cartridge 1 and the staple holder 2 are opened, the limiting slide 35 is separated from the fixing ring 32, and the limiting slide 35 driven by the rotation of the staple holder 2 will not be instantly locked with the fixing ring 32 when it moves. Instead, after the staple holder 2 is opened, the fixing ring 32 synchronously drives the staple box 33 to rotate, so that the fixing ring 32 drives the staple box 33 to rotate out of the open mouth of the staple cartridge 1, thereby automatically popping out the staple box 33 from the staple cartridge 1, making it more convenient for medical staff to replace the staple box 33 and reducing the operation time.

[0057] When there is no nail box 33 in the nail magazine 1, the protrusion of the fixing ring 32 in the initial state faces the open mouth of the nail magazine 1. When the nail box 33 needs to be inserted, the groove of the nail box 33 is aligned with the protrusion of the fixing ring 32, and the nail box 33 is inserted into the fixing ring 32, and then the nail box 33 is manually pressed to press the nail box 33 into the nail magazine 1. At this time, the limiting fixing piece 36 on the nail box 33 is locked with the limiting sliding piece 35, so that the nail box 33 is fixed and cannot rotate. In addition, 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, and the auxiliary gear 313 rotates. The auxiliary gear 313 drives the limiting slide 35 to move on the slide rail 34, and the limiting slide 35 presses the telescopic rod 38 to contract and compress the spring 39, so that the buckle between the limiting slide 35 and the limiting fixing member 36 is separated, and then, as the fixing ring 32 drives the nail box 33 to rotate into the nail magazine 1, the first elastic piece 316 restricted by the limiting frame 315 will be compressed to generate a restoring force, and after the buckle between the limiting slide 35 and the limiting fixing member 36 is separated, the restoring force generated by the first elastic piece 316 drives the fixing ring 32 to drive the nail box 33 to rotate toward the outside of the nail magazine 1, so that the nail box 33 is automatically ejected, and after the nail box 33 is rotated into the nail magazine 1, the arc groove of the nail box 33 will abut against the second elastic piece 317, so that the second elastic piece 317 abuts against the nail box 33, so as to stabilize the nail box 33 in the nail magazine 1 and prevent the nail box 33 from shaking in the nail magazine 1;

[0058] At the same time, when performing the cutting and anastomosis processing, 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 slide 43, the fixed slide 43 drives the firing shaft 47 to move, so that the firing shaft 47 moves from the slender body 42 to the nail magazine 1, and as the firing shaft 47 moves, the firing shaft 47 pushes the soft shaft 49 to move in the soft sleeve 48, and the soft 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, and the firing piece 413 drives the cutting knife 414 to move, so that the cutting knife 414 cuts the anastomosis processing, and the firing piece 413 squeezes and fires the anastomosis staples in the nail box 33 to perform the anastomosis processing on the anastomosis.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric stapler firing structure, comprising a staple cartridge (1), a staple holder (2), an auxiliary mechanism (3) arranged on the staple cartridge (1), and a firing mechanism (4) arranged on the staple cartridge (1), characterized in that: The nail magazine (1) is rotatably matched with the nail seat (2), and a wall surface on one side of the nail magazine (1) facing the nail seat (2) is an open opening; The auxiliary mechanism (3) comprises a fixing ring (32), a nail box (33), and a limiting slide (35); the fixing ring (32) is rotatably engaged in the nail magazine (1); the nail box (33) is buckled on the fixing ring (32); the nail box (33) is a disposable and replaceable anastomotic nail box; and the limiting slide (35) is slidably arranged in the nail magazine (1); The firing mechanism (4) comprises a firing shaft (47), the firing shaft (47) being arranged beside the nail magazine (1), the firing shaft (47) penetrating the wall of the nail magazine (1), and the firing shaft (47) extending into the nail magazine (1) to control the firing of the staples in the nail box (33); After the nail box (33) is buckled onto the fixing ring (32) and placed into the nail magazine (1), the fixing ring (32) and the limiting slide (35) are buckled. After the nail magazine (1) and the nail seat (2) are closed to clamp the human tissue, the rotation of the nail seat (2) drives the limiting slide (35) to move. After the staples in the nail box (33) are fired, the nail seat (2) rotates and opens between the nail magazine (1), and the fixing ring (32) drives the nail box (33) to rotate so as to eject the nail box (33) from the nail magazine (1).

2. The electric stapler firing structure according to claim 1, characterized in that: The auxiliary mechanism (3) further comprises a fixed shaft (31), wherein the fixed shaft (31) is arranged in the nail magazine (1), one end of the fixed shaft (31) is rotatably matched with the nail magazine (1), and the other end of the fixed shaft (31) is fixedly connected with the nail seat (2), the fixed ring (32) is provided with a protrusion, and the nail box (33) is provided with a groove, the protrusion of the fixed ring (32) is matched with the groove of the nail box (33), a slide rail (34) is fixedly installed on the nail magazine (1), and the limit slide (35) is slidably matched on the slide rail (34), and a limit fixing member (36) is fixedly installed on the fixed ring (32), and the limit fixing member (36) is snap-fitted with the limit slide (35).

3. The electric stapler firing structure according to claim 2, characterized in that: A fixed plate (37) is fixedly installed in the nail magazine (1), and a telescopic rod (38) is arranged between the fixed plate (37) and the limiting slide (35), the fixed rod of the telescopic rod (38) is connected to the fixed plate (37), and the extension rod of the telescopic rod (38) is connected to the limiting slide (35), and a spring (39) is sleeved on the extension rod of the telescopic rod (38), one end of the spring (39) is connected to the limiting slide (35), and the other end of the spring (39) is connected to the fixed rod of the telescopic rod (38).

4. The electric stapler firing structure according to claim 3, characterized in that: A first reversing gear (310) is rotatably engaged in the nail magazine (1), and a first belt (311) is tensioned on the shaft of the first reversing gear (310) and the fixed shaft (31). A second reversing gear (312) is rotatably engaged in the nail magazine (1), and the second reversing gear (312) is meshed with the first reversing gear (310). An auxiliary gear (313) is rotatably engaged in the nail magazine (1), and teeth are provided on the limiting slide (35), and the auxiliary gear (313) is meshed with the teeth of the limiting slide (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 electric stapler firing structure according to claim 4, characterized in that: A limiting frame (315) is fixedly mounted on the fixing ring (32) and the nail magazine (1), the limiting frame (315) is opposite to the fixed axis (31), a first spring piece (316) is arranged on the limiting frame (315), an arc groove is opened on the nail box (33), a second spring piece (317) is fixedly mounted on the nail magazine (1), the second spring piece (317) is opposite to the arc groove of the nail box (33), and the second spring piece (317) is adapted to the arc groove of the nail box (33).

6. The firing structure of an electric stapler according to claim 5, characterized in that: The firing mechanism (4) further comprises a shell (41), wherein the shell (41) is arranged beside the nail magazine (1), wherein a slender body (42) is arranged on the shell (41), wherein the slender body (42) is connected to the nail magazine (1), wherein the shell (41) is in communication with the slender body (42), wherein the slender body (42) is in communication with the nail magazine (1), wherein the firing shaft (47) is located inside the slender body (42), wherein one end of the firing shaft (47) extends into the shell (41), and the other end of the firing shaft (47) passes through the slender body (42) and extends into the nail magazine (1).

7. The firing structure of an electric stapler according to claim 6, characterized in that: A fixed slide (43) is fixedly installed in the shell (41), and a linkage rod (44) is slidably matched on the fixed slide (43). The linkage rod (44) is fixedly connected to the firing shaft (47), and the other end of the linkage rod (44) is provided with teeth. A motor (45) is fixedly installed in the shell (41), and 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).

8. The firing structure of an electric stapler according to claim 7, characterized in that: A soft sleeve (48) is arranged inside the slender body (42), one end of the soft sleeve (48) is fixedly mounted on the slender body (42), the other end of the soft sleeve (48) is fixedly mounted on the nail magazine (1), the firing shaft (47) is opposite to the soft sleeve (48), the soft sleeve (48) is opposite to the nail box (33), a soft shaft (49) is slidably arranged inside the soft sleeve (48), one end of the soft shaft (49) is connected to the firing shaft (47), and the other end of the soft shaft (49) is opposite to the nail box (33).

9. The firing structure of an electric stapler according to claim 8, characterized in that: A partition (410) is fixedly installed in the nail box (33), a positioning frame (411) is fixedly installed on the partition (410), a sliding block (412) is slidably matched on the positioning frame (411), the sliding block (412) passes through the partition (410), a firing piece (413) is fixedly installed on the sliding block (412), the firing piece (413) is located below the partition (410), a cutting knife (414) is fixedly installed on the firing piece (413), and the cutting knife (414) passes through the nail box (33).

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