Multi-gear adjusting intracavity anastomat

Abstract

The invention provides a multi-gear adjusting intracavity anastomat, and relates to the technical field of medical instruments. The device comprises a gun rack, a mounting rod, a pair of anastomosis forceps, an opening and closing assembly and a steering assembly, wherein one end of the mounting rod is connected with the gun rack; the anastomosis clamp comprises a clamp handle, a fixed clamp claw and a movable clamp claw, the fixed clamp claw is arranged at one end of the clamp handle, a hinge handle shaft is arranged at the other end of the clamp handle, the clamp handle is hinged to the end, away from the gun rack, of the mounting rod through the hinge handle shaft, and the movable clamp claw is hinged to the end, close to the fixed clamp claw, of the clamp handle; the opening and closing assembly is in transmission connection with the movable gripper arm and can drive the movable gripper arm to be close to or away from the fixed gripper arm. The steering assembly comprises a transmission unit and a driving piece, the driving piece is in transmission connection with the clamp handle through the transmission unit, and the driving piece can drive the end, away from the mounting rod, of the clamp handle to steer around the hinged shaft of the driving piece or rotate away from the gun rack. The device has the effects of being convenient to use, time-saving and labor-saving.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an intracavitary anastomosis device with multi-position adjustment. Background Art

[0002] An intracavitary stapler is a medical device that replaces manual suturing.

[0003] Existing intracavitary staplers generally include a gun frame, an anastomotic rod and a rotating rod arranged on the gun frame, and an anastomotic forceps installed on the end of the anastomotic rod away from the gun frame. The gun frame is provided with a pull handle and a knob that are transmission-connected to the anastomotic forceps. The user can control the opening and closing of the anastomotic forceps by pulling the pull handle, or drive the end of the anastomotic forceps away from the gun frame to deflect toward the sides of the gun frame by rotating the knob, and then adjust the position of the anastomotic head to ensure the normal completion of the operation.

[0004] However, since the user needs to hold the gun holder with one hand and put down other surgical tools with the other hand to turn the knob each time the anastomotic forceps is deflected, the use of the intracavitary stapler is time-consuming and laborious.

[0005] In view of this, it is necessary to provide an intracavitary anastomosis device with multi-position adjustment. Summary of the Invention

[0006] In order to solve the problem that the existing intracavitary stapler requires the user to manually adjust the deflection of the anastomotic clamp, which is time-consuming and labor-intensive, the present application provides an intracavitary stapler with multi-gear adjustment.

[0007] The present application provides an intracavitary stapler with multi-gear adjustment, which adopts the following technical solution: comprising a gun frame, a mounting rod, anastomotic forceps, an opening and closing assembly, and a steering assembly, wherein one end of the mounting rod is connected to the gun frame; The anastomotic forceps comprises a handle, a fixed jaw and a movable jaw, wherein the fixed jaw is provided on one end of the handle, a hinge shaft is provided on the other end of the handle, and the handle is hinged to an end of the mounting rod away from the gun frame via the hinge shaft, and the movable jaw is hinged to an end of the handle close to the fixed jaw; The opening and closing assembly is in transmission connection with the movable jaw and is capable of driving the movable jaw to move closer to or away from the fixed jaw; The steering assembly includes a transmission unit and a driving member, the driving member is connected to the clamp handle via the transmission unit, and the driving member can drive the end of the clamp handle away from the mounting rod to turn around its own hinge axis or rotate away from the gun rack.

[0008] By adopting the above technical solution, during surgery, the user can control the driving member to drive the end of the clamp handle away from the mounting rod to turn around its own hinge axis or rotate away from the gun mount, without having to manually turn the knob to drive the clamp handle to rotate around the mounting rod, thereby making the use of the multi-speed adjustable intracavitary anastomosis device more convenient, time-saving and labor-saving.

[0009] Specifically, a receiving hole is provided on the end portion of the mounting rod away from the gun frame along the length direction of the mounting rod, and a hinge handle hole is provided on the rod body of the mounting rod, which leads to the receiving hole. The transmission unit includes a driven gear and a transmission rod. A hinge handle shaft is provided at the end of the clamp handle away from the fixed clamp claw, and the hinge handle shaft passes through the hinge handle hole and extends into the receiving hole and is connected to the driven gear. One end of the transmission rod is provided with a rack meshing with the driven gear, and the other end of the transmission rod passes through the receiving hole and extends into the gun frame and is transmission-connected to the driving member. The driving member can drive the transmission rod to move along the receiving hole and drive the end of the clamp handle away from the mounting rod to turn around the hinge handle shaft or rotate away from the gun frame.

[0010] By adopting the above technical solution, the driving member can drive the transmission rod along the accommodating through hole away from the gun frame to drive the end of the clamp handle away from the mounting rod to rotate around the hinge handle axis toward one side of the gun frame; the driving member can also drive the transmission rod along the accommodating through hole toward the gun frame to drive the end of the clamp handle away from the mounting rod to rotate around the hinge handle axis toward the other side of the gun frame.

[0011] Furthermore, the driving member includes a driving motor and a driving gear. The driving motor is arranged inside the gun frame, and the driving gear is arranged on the output shaft of the driving motor. A rack meshing with the driving gear is provided on the end of the transmission rod away from the driven gear.

[0012] By adopting the above technical solution, the user can drive the transmission rod along the accommodating through hole toward or away from the gun frame by controlling the forward and reverse rotation of the drive motor, and then drive the end of the pliers handle away from the mounting rod to turn around the hinge handle axis or away from the gun frame through the transmission rod.

[0013] Furthermore, a switch is provided on the gun mount, and the switch is electrically connected to the drive motor and can start and stop the drive motor.

[0014] By adopting the above technical solution, during surgery, the user can hold the gun holder with one hand and other surgical tools with the other hand, and control the switch to start and stop the drive motor through the fingertips or knuckles, so that the user can deflect the anastomotic forceps without putting down other surgical tools in his hand, thereby making the use of the intracavitary stapler with multi-speed adjustment more convenient, time-saving and labor-saving.

[0015] Furthermore, the opening and closing assembly includes a connecting rod, an opening and closing rod and a pulling handle. The transmission rod and the pliers handle are provided with through holes along the length direction of the transmission rod. The middle part of the movable pliers claw is hinged to the pliers handle, and one end of the movable pliers claw close to the gun frame is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to one end of the opening and closing rod. The other end of the opening and closing rod sequentially passes through the through hole of the pliers handle and the through hole of the transmission rod and extends into the interior of the gun frame, and is rotatably connected to the middle part of the pulling handle. One end of the pulling handle is hinged to the gun frame, and the other end of the pulling handle passes through the through hole opened on the gun frame and extends to the outside of the gun frame.

[0016] By adopting the above technical solution, the user can drive the opening and closing rod to move by rotating the pull handle, and then drive the hinge axis between the connecting rod and the movable jaw closer to or away from the hinge axis between the movable jaw and the jaw handle, thereby driving the movable jaw closer to or away from the fixed jaw.

[0017] Furthermore, the mounting rod includes an outer fixed section and an outer replaceable section, the outer fixed section is fixedly connected to the gun mount, and the outer replaceable section is detachably connected to the outer fixed section; The transmission rod includes a middle fixed section and a middle replaceable section, wherein the middle fixed section is in transmission connection with the driving member, and the middle replaceable section is detachably connected to the middle fixed section; The opening and closing rod includes an inner fixed section and an inner replaceable section. The inner fixed section is hinged to the pull handle, and the inner replaceable section is detachably connected to the inner fixed section.

[0018] By adopting the above technical solution, the detachable connection design of the mounting rod, the transmission rod and the opening and closing rod allows the user to replace the anastomotic forceps and part of the mounting rod in front of the gun frame. Subsequently, after performing an operation using the intracavitary stapler with multi-speed adjustment, the user does not need to discard the entire intracavitary stapler. The anastomotic forceps and part of the mounting rod that frequently come into contact with the tissue and blood of the patient can be removed from the gun frame and discarded, and the remaining part of the intracavitary stapler can be continued to be used after being disinfected, thereby reducing the use cost of the intracavitary stapler.

[0019] Furthermore, an inner snap-fitting protrusion is provided on an end of the inner fixed section away from the gun frame, an inner snap-fitting groove is provided on the inner snap-fitting protrusion along the width direction of the opening and closing rod, and an inner snap-fitting block is provided on an end of the inner replaceable section close to the gun frame, the inner snap-fitting block can be inserted into the inner snap-fitting groove and abut against the inner wall of the inner snap-fitting groove to limit the inner replaceable section from moving away from the inner fixed section along the length direction of the opening and closing rod; The middle fixed section and the middle replaceable section are both provided with through holes along the length direction of the transmission rod, the middle fixed section is provided with a middle clamping protrusion on the side of the hole away from the gun frame, the middle clamping protrusion is provided with a middle clamping groove along the opening direction of the inner clamping groove, and the middle replaceable section is provided with a middle clamping block on the side of the hole close to the gun frame, the middle clamping block can be inserted into the middle clamping groove and abut against the inner wall of the middle clamping groove to limit the middle replaceable section from moving away from the middle fixed section along the length direction of the transmission rod; The accommodating through hole is provided on both the outer fixed section and the outer replaceable section, an outer clamping protrusion is provided on the edge of the hole on the side of the outer fixed section away from the gun frame, an outer clamping groove is provided on the outer clamping protrusion along the opening direction of the inner clamping groove, and an outer clamping block is provided on the edge of the hole on the side of the outer replaceable section close to the gun frame, the outer clamping block can be inserted into the outer clamping groove, abut against the outer wall of the outer clamping groove, and limit the outer replaceable section from moving away from the outer fixed section along the length direction of the mounting rod.

[0020] By adopting the above technical solution, the design of the inner snap-fitting groove and the inner snap-fitting protrusion enables the inner fixed section to be connected to the inner interchangeable section by snap-fitting, the design of the middle snap-fitting groove and the middle snap-fitting protrusion enables the middle fixed section to be connected to the middle interchangeable section by snap-fitting, and the design of the outer snap-fitting groove and the outer snap-fitting protrusion enables the outer fixed section to be connected to the outer interchangeable section by snap-fitting; and since the inner snap-fitting groove, the middle snap-fitting groove and the outer snap-fitting protrusion are all opened in the same direction, the user can move the outer interchangeable section to simultaneously insert the inner snap-fitting protrusion, the middle snap-fitting protrusion and the outer snap-fitting protrusion into the corresponding snap-fitting groove or separate them from the corresponding snap-fitting groove, thereby realizing rapid disassembly between the gun rack and the anastomosis forceps.

[0021] Furthermore, it also includes a locking sleeve, the interior of which is formed with a threaded section and an abutment section, the outer wall of the external fixed section is provided with an external thread, and the inner wall of the threaded section is provided with an internal thread that matches the external thread. When the threaded section is threaded with the external fixed section, the inner wall of the abutment section can abut against the external interchangeable section and limit the movement of the external interchangeable section along the opening direction of the external clamping groove.

[0022] By adopting the above technical solution, the locking sleeve can abut against the outer replaceable segment and limit the movement of the outer replaceable segment along the opening direction of the outer clamping groove, thereby limiting the separation of the outer replaceable segment from the outer fixed segment, and then ensuring that it is not easy for external force to cause each replaceable segment to separate from the corresponding fixed segment during surgery.

[0023] Furthermore, it also includes a protective cover, one end of the protective cover is sleeved on the clamp handle, and the other end of the protective cover is sleeved on the mounting rod.

[0024] By adopting the above technical solution, the protective cover can block the gap between the clamp handle and the mounting rod, so that the gap between the clamp handle and the mounting rod is not easy to clamp or scratch the tissue on the body of the patient undergoing surgery.

[0025] Specifically, the fixed jaw is provided with a scale.

[0026] By adopting the above technical solution, the user can quickly measure the size of the wound to be sutured by means of the scale.

[0027] In summary, this application includes at least one of the following beneficial technical effects: The cam is connected to the gun frame by a rotation of the drive mechanism, and the cam is connected to the gun frame by a rotation of the drive mechanism, so that the cam can be opened and closed by the user, and the cam can be opened and closed by the user, so that the cam can be opened and closed by the user, and the cam can be opened and closed by the user, so that the cam can be opened and closed by the user, and the cam can be opened and closed by the user, so that the cam can be opened and closed by the user, and the cam can be opened and closed by the user, so that the cam can be opened and closed by the user, 2. The mounting rod includes an outer fixed section and an outer replaceable section, the outer fixed section is fixedly connected to the gun frame, and the outer replaceable section is detachably connected to the outer fixed section, the transmission rod includes a middle fixed section and a middle replaceable section, the middle fixed section is transmission-connected to the driving member, and the middle replaceable section is detachably connected to the middle fixed section, the opening and closing rod includes an inner fixed section and an inner replaceable section, the inner fixed section is hinged to the pull handle, and the inner replaceable section is detachably connected to the inner fixed section, so that the user can replace the anastomotic forceps and part of the mounting rod in front of the gun frame, and then the user does not need to discard the entire intracavitary stapler after completing an operation using the multi-speed adjustable intracavitary stapler. The anastomotic forceps and part of the mounting rod that frequently come into contact with the tissue and blood of the patient can be removed from the gun frame and discarded, and the remaining part of the intracavitary stapler can be continued to be used after disinfection, thereby reducing the use cost of the intracavitary stapler. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a front view of an intracavitary stapler with multiple gear adjustments according to the present application; Figure 2 This is a rear view of an intracavitary stapler with multiple gear adjustments according to the present application, wherein only a portion of the mounting rod is shown; Figure 3 It is along Figure 2 a schematic cross-sectional view taken along the center axis in the longitudinal direction of the center mounting rod, wherein only a portion of the gun mount is shown; Figure 4 yes Figure 3 A schematic enlarged view of area A, showing the driven gear; Figure 5 yes Figure 3 Schematic enlargement of area B, showing the output shaft.

[0029] Reference numerals: 1, gun mount; 11, switch; 12, handle; 2, mounting rod; 21, rotating sleeve; 22, external fixed section; 222, external flange; 23, external interchangeable section; 231, external clamping block; 3, anastomotic forceps; 31, handle; 311, hinge handle shaft; 32, fixed jaw; 321, scale; 33, movable jaw; 4, opening and closing assembly; 41, connecting rod; 42, opening and closing rod; 421, internal fixed section; 4 22. Inner interchangeable section; 4221. Inner clamping block; 43. Pull handle; 5. Steering assembly; 51. Transmission unit; 511. Driven gear; 512. Transmission rod; 5121. Middle fixed section; 5122. Middle interchangeable section; 5123. Middle clamping block; 5124. Middle flange; 5125. Middle rotating groove; 52. Driving member; 521. Output shaft; 522. Driving gear; 6. Locking sleeve; 7. Protective sleeve. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 For further explanation: See also Figure 1 、 Figure 3 and Figure 5 , a multi-gear adjustable intracavitary anastomosis device, comprising a gun frame 1, a mounting rod 2, an anastomosis forceps 3, an opening and closing assembly 4, a steering assembly 5, a locking sleeve 6 and a protective sleeve 7, one side of the gun frame 1 is provided with a muzzle leading to the interior of the gun frame 1, and the other end of the gun frame 1 is provided with a handle 12 for the user to hold; the mounting rod 2 includes an outer fixed section 22, an outer replaceable section 23 and a rotating sleeve 21, the outer fixed section 22 and the outer replaceable section 23 are both provided with an accommodating through hole along the length direction of the mounting rod 2, an outer flange 222 is provided on the edge of the hole at one end of the outer fixed section 22, and the end of the outer fixed section 22 is penetrated The outer fixing section 22 extends into the interior of the gun frame 1 through the muzzle and is rotatably engaged with the inner wall of the gun frame 1 through the outer flange 222. An outer engaging protrusion is provided on the edge of the hole at the end of the outer fixing section 22 away from the gun frame 1. An outer engaging groove is formed on the outer engaging protrusion along the opening direction of the inner engaging groove. An outer engaging block 231 is provided on the edge of the hole on the side of the outer replaceable section 23 close to the gun frame 1. The outer engaging block 231 can be inserted into the outer engaging groove and abut against the outer wall of the outer engaging groove, thereby limiting the outer replaceable section 23 from moving away from the outer fixing section 22 along the length direction of the mounting rod 2; the rotating sleeve 21 is connected to the outer wall of the outer fixing section 22.

[0031] See also Figure 1 、 Figure 3 、 Figure 4 and Figure 5 The anastomotic forceps 3 include a handle 31, a fixed jaw 32 and a movable jaw 33. The fixed jaw 32 is provided on one end of the handle 31, and a hinge handle shaft 311 is provided on the other end of the handle 31. The handle 31 is hinged to the end of the mounting rod 2 away from the gun frame 1 via the hinge handle shaft 311. The middle part of the movable jaw 33 is hinged to the end of the handle 31 close to the fixed jaw 32. A scale 321 is also provided on the fixed jaw 32 so that the user can quickly measure the size of the wound to be sutured by the scale 321. Two hinge handle holes leading to the accommodating through hole are relatively opened on the side wall away from the gun frame 1. The transmission unit 51 includes a transmission rod 512 and two driven gears 511. Two hinge handle shafts 311 are relatively provided at the end of the clamp handle 31 away from the fixed clamp claw 32 with the central axis of the clamp handle 31 as the center. The two hinge handle shafts 311 and the two hinge handle holes and the two driven gears 511 are in one-to-one correspondence. Each hinge handle shaft 311 passes through a corresponding hinge handle hole and extends into the accommodating through hole and is connected to a corresponding driven gear 511.

[0032] See also Figure 1 、 Figure 3 、 Figure 4 and Figure 5The transmission rod 512 includes a middle interchangeable section 5122 and a middle fixed section 5121. Both the middle fixed section 5121 and the middle interchangeable section 5122 are provided with through holes along the length direction of the transmission rod 512. A middle flange 5124 is provided on the edge of the hole at one end of the middle fixed section 5121. The end of the middle fixed section 5121 passes through the muzzle and extends into the interior of the gun frame 1. The middle flange 5124 is rotatably connected to the inner wall of the gun frame 1. The middle fixed section 5121 is away from the gun frame 1. A middle clamping protrusion is provided on the side opening, and a middle clamping groove is provided on the middle clamping protrusion along the opening direction of the inner clamping groove. A middle clamping block 5123 is provided on the side opening of the middle interchangeable section 5122 close to the gun frame 1. The middle clamping block 5123 can be inserted into the middle clamping groove and abut against the inner wall of the middle clamping groove to limit the middle interchangeable section 5122 from moving away from the middle fixed section 5121 along the length direction of the transmission rod 512; two racks are provided on the end of the middle fixed section 5121 away from the gun frame 1. Each rack is meshed with a corresponding driven gear 511; the driving member 52 includes a driving motor (not shown in the figure) and a driving gear 522. The driving motor is fixedly connected to the inside of the gun frame 1. The driving gear 522 is provided on the output shaft 521 of the driving motor and meshes with a rack. An annular middle rotating groove 5125 is provided around the central axis of the middle fixed section 5121 on the end port near the gun frame 1. The middle rotating groove 5125 can be a T-shaped groove. A T-shaped block adapted to the middle rotating groove 5125 is provided on one end of the rack meshed with the driving gear 522, so that the rack meshed with the driving gear 522 can be rotatably engaged in the middle rotating groove 5125 through the T-shaped block; button-type switches 11 are provided on both sides of the gun frame 1. Each switch 11 is electrically connected to the driving motor and can start and stop the driving motor. When the two switches 11 start the driving motor, the output shaft 521 of the driving motor rotates in opposite directions.

[0033] See also Figure 1 、 Figure 3 、 Figure 4 and Figure 5The opening and closing assembly 4 includes a connecting rod 41, an opening and closing rod 42 and a pull handle 43. The opening and closing rod 42 includes an inner fixed section 421 and an inner replaceable section 422. A through hole is provided on the transmission rod 512 and the pliers handle 31 along the length direction of the transmission rod 512. The middle part of the movable pliers claw 33 is hinged to the pliers handle 31. The end of the movable pliers claw 33 close to the gun frame 1 is hinged to one end of the connecting rod 41, and the other end of the connecting rod 41 is hinged to one end of the inner replaceable section 422. An inner snap-fitting block 4221 is provided on the other end of the inner replaceable section 422. An inner snap-fitting protrusion is provided on the end of the inner fixed section 421 away from the gun frame 1. An inner snap-fitting groove is provided on the inner snap-fitting protrusion along the width direction of the opening and closing rod 42. The inner snap-fitting block 4221 can be inserted into the inner snap-fitting groove to abut against the inner wall of the inner snap-fitting groove and limit the inner replaceable section 422 from moving along the The length direction of the opening and closing rod 42 is away from the internal fixed section 421, and the other end of the internal fixed section 421 passes through the muzzle and extends into the interior of the gun frame 1 and is hinged to the middle part of the pull handle 43. One end of the pull handle 43 is hinged to the gun frame 1, and the other end of the pull handle 43 passes through the through hole opened at the bottom of the gun frame 1 and extends to the outside of the gun frame 1 and is located between the mounting rod 2 and the handle 12, so that the user can pull the pull handle 43 toward the handle 12 to drive the hinge axis between the connecting rod 41 and the movable jaw 33 away from the hinge axis between the movable jaw 33 and the clamp handle 31, and then drive the movable jaw 33 close to the fixed jaw 32; or push the pull handle 43 away from the handle 12 to drive the hinge axis between the connecting rod 41 and the movable jaw 33 close to the hinge axis between the movable jaw 33 and the clamp handle 31, and then drive the movable jaw 33 away from the fixed jaw 32.

[0034] See also Figure 1 and Figure 5Specifically, the outer clamping block 231, the middle clamping block 5123 and the inner clamping block 4221 can all be T-shaped blocks, the outer clamping groove, the middle clamping groove and the inner clamping groove can all be corresponding T-shaped grooves, and the interior of the locking sleeve 6 is formed with a threaded section and an abutment section. The outer wall of the outer fixed section 22 is provided with an external thread, and the inner wall of the threaded section is provided with an internal thread adapted to the external thread. When the threaded section is screwed to the outer fixed section 22, the inner wall of the abutment section can be screwed with the outer replaceable section 2 3 abuts and restricts the outer replaceable segment 23 from moving along the direction of the outer clamping groove, so that the locking sleeve 6 can abut against the outer replaceable segment 23 and restrict the outer replaceable segment 23 from moving along the direction of the outer clamping groove, thereby restricting the outer replaceable segment 23 from separating from the outer fixed segment 22, the middle replaceable segment 5122 from separating from the middle fixed segment 5121, and the inner replaceable segment 422 from separating from the inner fixed segment 421, thereby ensuring that the replaceable segments are not easily separated due to external forces during surgery. In the case where the segment is separated from the corresponding fixed segment, the user can drive the mounting rod 2, the transmission rod 512 and the opening and closing rod 42 to rotate around the central axis in the length direction of the mounting rod 2 by rotating the rotating sleeve 21, thereby driving the anastomotic forceps 3 to rotate; and since the inner snap-in groove, the middle snap-in groove and the outer snap-in groove are all opened in the same direction, the user can move the outer interchangeable segment 23 to simultaneously insert the inner snap-in protrusion, the middle snap-in protrusion and the outer snap-in protrusion into the corresponding snap-in groove or separate them from the corresponding snap-in groove, thereby realizing the rapid disconnection between the gun frame 1 and the anastomotic forceps 3; one end of the protective sleeve 7 is sleeved on the forceps handle 31, and the other end of the protective sleeve 7 is sleeved on the mounting rod 2. The protective sleeve 7 can be a rubber sleeve, so that the gap between the forceps handle 31 and the mounting rod 2 can be blocked by the protective sleeve 7, thereby making the gap between the forceps handle 31 and the mounting rod 2 not easy to clamp or scratch the tissue on the body of the patient to be operated on.

[0035] The implementation principle of the multi-position adjustable intracavitary stapler described in this application is as follows: During surgery, the user can hold the gun holder 1 in one hand and other surgical tools in the other hand, and press the two switches 11 with the fingertips or knuckles to start and stop the drive motor, thereby controlling the forward and reverse rotation of the drive motor to drive the transmission rod 512 along the accommodating through hole to move closer to or away from the gun holder 1, thereby driving the end of the clamp handle 31 away from the mounting rod 2 to turn around the hinge handle axis 311 to or away from the gun holder 1 through the transmission rod 512, so that the user can deflect the anastomotic forceps 3 without putting down other surgical tools in his hand, and there is no need to manually turn the knob to drive the clamp handle 31 to rotate around the mounting rod 2, thereby making the use of the intracavitary stapler with multi-speed adjustment more convenient, time-saving and labor-saving; After the operation, the detachable connection design of the mounting rod 2, the transmission rod 512 and the opening and closing rod 42 allows the user to replace the anastomotic forceps 3 and part of the mounting rod 2 in front of the gun frame 1. As a result, after the user completes an operation using the multi-position adjustable intracavitary stapler, there is no need to discard the entire intracavitary stapler. The anastomotic forceps 3 and part of the mounting rod 2 that frequently come into contact with the tissue and blood of the patient can be removed from the gun frame 1 and discarded, while the remaining part of the intracavitary stapler can be continued to be used after being disinfected, thereby reducing the cost of using the intracavitary stapler.

[0036] To drive the end of the clamp handle 31 away from the mounting rod 2 to turn around its own hinge axis or rotate away from the gun frame 1, thereby making the use of the multi-speed adjustable intracavitary anastomosis device more convenient, time-saving and labor-saving.

[0037] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. An intracavitary stapler with multiple gear adjustments, characterized in that: It comprises a gun frame (1), a mounting rod (2), anastomosis forceps (3), an opening and closing assembly (4) and a steering assembly (5), wherein one end of the mounting rod (2) is connected to the gun frame (1); The anastomotic forceps (3) comprises a handle (31), a fixed jaw (32) and a movable jaw (33), wherein the fixed jaw (32) is provided on one end of the handle (31), a hinge handle shaft (311) is provided on the other end of the handle (31), and the handle (31) is hinged to an end of the mounting rod (2) away from the gun frame (1) via the hinge handle shaft (311), and the movable jaw (33) is hinged to an end of the handle (31) close to the fixed jaw (32); The opening and closing assembly (4) is in transmission connection with the movable jaw (33) and is capable of driving the movable jaw (33) to move closer to or away from the fixed jaw (32); The steering assembly (5) comprises a transmission unit (51) and a driving member (52), wherein the driving member (52) is connected to the clamp handle (31) via the transmission unit (51), and the driving member (52) is capable of driving the end of the clamp handle (31) away from the mounting rod (2) to turn around its own hinge axis or rotate away from the gun frame (1).

2. The multi-position adjustable intracavitary stapler according to claim 1, characterized in that: The mounting rod (2) is provided with a receiving hole on one end thereof away from the gun frame (1) and leading to the interior of the gun frame (1) along the length direction of the mounting rod (2), and a hinge handle hole leading to the receiving hole is provided on the rod body of the mounting rod (2). The transmission unit (51) includes a driven gear (511) and a transmission rod (512). The end of the clamp handle (31) away from the fixed clamp claw (32) is provided with a hinge handle shaft (311), and the hinge handle shaft (311) passes through the hinge handle hole and extends into the receiving hole. The transmission rod (512) is connected to the driven gear (511), one end of the transmission rod (512) is provided with a rack meshing with the driven gear (511), the other end of the transmission rod (512) passes through the accommodating through hole and extends into the gun frame (1) and is connected to the driving member (52), and the driving member (52) can drive the transmission rod (512) to move along the accommodating through hole and drive the end of the clamp handle (31) away from the mounting rod (2) to turn around the hinge handle shaft (311) or turn away from the gun frame (1).

3. The multi-position adjustable intracavitary stapler according to claim 2, characterized in that: The driving member (52) includes a driving motor and a driving gear (522). The driving motor is arranged inside the gun frame (1). The driving gear (522) is arranged on the output shaft (521) of the driving motor. A rack meshing with the driving gear (522) is provided on one end of the transmission rod (512) away from the driven gear (511).

4. The multi-position adjustable intracavitary stapler according to claim 3, characterized in that: The gun rack (1) is provided with a switch (11), and the switch (11) is electrically connected to the drive motor and can start and stop the drive motor.

5. The multi-position adjustable intracavitary stapler according to claim 2, characterized in that: The opening and closing assembly (4) includes a connecting rod (41), an opening and closing rod (42) and a pull handle (43). The transmission rod (512) and the clamp handle (31) are both provided with through holes along the length direction of the transmission rod (512). The middle part of the movable clamp claw (33) is hinged to the clamp handle (31). One end of the movable clamp claw (33) close to the gun frame (1) is hinged to one end of the connecting rod (41). The other end of the connecting rod (41) is hinged to the other end of the connecting rod (41). One end of the pulling handle (43) is hinged to one end of the opening and closing rod (42), and the other end of the opening and closing rod (42) passes through the through hole of the clamp handle (31) and the through hole of the transmission rod (512) in sequence and extends into the interior of the gun frame (1), and is rotatably connected to the middle part of the pulling handle (43), one end of the pulling handle (43) is hinged to the gun frame (1), and the other end of the pulling handle (43) passes through the through hole opened on the gun frame (1) and extends to the outside of the gun frame (1).

6. The multi-position adjustable intracavitary stapler according to claim 5, characterized in that: The mounting rod (2) comprises an outer fixed section (22) and an outer replaceable section (23), wherein the outer fixed section (22) is fixedly connected to the gun rack (1), and the outer replaceable section (23) is detachably connected to the outer fixed section (22); The transmission rod (512) comprises a middle fixed section (5121) and a middle replaceable section (5122), wherein the middle fixed section (5121) is transmission-connected to the driving member (52), and the middle replaceable section (5122) is detachably connected to the middle fixed section (5121); The opening and closing rod (42) comprises an inner fixed section (421) and an inner replaceable section (422); the inner fixed section (421) is hinged to the pull handle (43); and the inner replaceable section (422) is detachably connected to the inner fixed section (421).

7. The multi-position adjustable intracavitary stapler according to claim 6, characterized in that: An inner snap-fitting protrusion is provided on the end of the inner fixed section (421) away from the gun frame (1), and an inner snap-fitting groove is provided on the inner snap-fitting protrusion along the width direction of the opening and closing rod (42). An inner snap-fitting block (4221) is provided on the end of the inner replaceable section (422) close to the gun frame (1), and the inner snap-fitting block (4221) can be inserted into the inner snap-fitting groove to abut against the inner wall of the inner snap-fitting groove and limit the inner replaceable section (422) from moving away from the inner fixed section (421) along the length direction of the opening and closing rod (42); The middle fixed section (5121) and the middle replaceable section (5122) are both provided with through holes along the length direction of the transmission rod (512); the middle fixed section (5121) is provided with a middle clamping protrusion on the side of the hole away from the gun frame (1); the middle clamping protrusion is provided with a middle clamping groove along the opening direction of the inner clamping groove; the middle replaceable section (5122) is provided with a middle clamping block (5123) on the side of the hole close to the gun frame (1); the middle clamping block (5123) can be inserted into the middle clamping groove and abut against the inner wall of the middle clamping groove to limit the middle replaceable section (5122) from moving away from the middle fixed section (5121) along the length direction of the transmission rod (512); The accommodating through hole is provided on both the outer fixed section (22) and the outer replaceable section (23); an outer snap-fitting protrusion is provided on the side of the opening of the outer fixed section (22) away from the gun frame (1); an outer snap-fitting groove is provided on the outer snap-fitting protrusion along the opening direction of the inner snap-fitting groove; an outer snap-fitting block (231) is provided on the side of the opening of the outer replaceable section (23) close to the gun frame (1); the outer snap-fitting block (231) can be inserted into the outer snap-fitting groove to abut against the outer wall of the outer snap-fitting groove and limit the outer replaceable section (23) from moving away from the outer fixed section (22) along the length direction of the mounting rod (2).

8. The multi-position adjustable intracavitary stapler according to claim 7, characterized in that: The invention also includes a locking sleeve (6), wherein a threaded section and an abutting section are formed inside the locking sleeve (6), an outer wall of the outer fixed section (22) is provided with an outer thread, and an inner wall of the threaded section is provided with an inner thread that matches the outer thread. When the threaded section is threadedly connected to the outer fixed section (22), the inner wall of the abutting section can abut against the outer replaceable section (23) and restrict the outer replaceable section (23) from moving along the opening direction of the outer clamping groove.

9. The multi-position adjustable intracavitary stapler according to claim 2, characterized in that: It also includes a protective sleeve (7), one end of the protective sleeve (7) is sleeved on the clamp handle (31), and the other end of the protective sleeve (7) is sleeved on the mounting rod (2).

10. The multi-position adjustable intracavitary stapler according to claim 1, characterized in that: The fixed clamp claw (32) is provided with a scale (321).

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