Electric anastomat control handle and electric anastomat

Abstract

The invention relates to the technical field of medical instruments, and discloses an electric anastomat control handle and an electric anastomat, the electric anastomat control handle comprises a support, a transmission rack and a power assembly, the transmission rack comprises a trigger part, and the power assembly is used for driving the transmission rack to advance or retreat; the control handle further comprises a percussion piece assembly and a mode switching assembly. The mode switching assembly is used for controlling the triggering assembly to be switched from the closing operation to the triggering operation, and the mode switching assembly comprises a stopping position and an avoiding position; when the mode switching assembly is located at the stop position, the triggering assembly is pressed down, the triggering part abuts against the mode switching assembly, and the triggering assembly cannot be triggered; when the driving mode switching assembly is switched to the avoiding position, the percussion assembly can be percussed to execute percussion operation. According to the electric anastomat control handle and the electric anastomat, the problems of high technical difficulty, high structural complexity and high manufacturing cost of the electric anastomat in related technologies can be solved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an electric stapler control handle and an electric stapler. Background Technology

[0002] Electric staplers typically employ an I-beam design for their clamp heads. The I-beam's forward stroke is divided into at least two segments: one segment drives the pusher to control jaw closure, and the other segment drives the pusher to complete the anastomosis and cutting. Therefore, it is necessary to control the segmented forward and backward movement of the pusher. Clinically, for safety reasons, adjustments and confirmations are required during the jaw closure phase before firing to complete the anastomosis and cutting. Therefore, all electric staplers undergo an unlocking operation before firing for anastomosis.

[0003] In related technologies, multiple sensors are typically installed in the electric stapler, and control software is used to identify the position of the pusher, thereby controlling the pusher to advance and retract in segments, perform braking and unlocking operations, and ultimately achieve jaw closure, as well as anastomosis and cutting. The corresponding technical difficulty, structural complexity and manufacturing cost are all relatively high. Summary of the Invention

[0004] This application provides an electric stapler control handle and an electric stapler, which can improve the problems of high technical difficulty, structural complexity and manufacturing cost of electric staplers in related technologies.

[0005] In a first aspect, embodiments of this application provide an electric stapler control handle, including a bracket, a transmission rack, and a power component. The transmission rack is slidably connected to the bracket, and the transmission rack includes a trigger portion. The power component is used to drive the transmission rack forward or backward.

[0006] The control handle further includes a firing assembly movably connected to the bracket and a mode switching assembly movably connected to the bracket. The firing assembly performs a closing operation or a firing operation to control the movement of the power assembly. The mode switching assembly is used to control the firing assembly to switch from the closing operation to the firing operation. The mode switching assembly includes a stop position and a avoidance position.

[0007] When the mode switching component is in the stop position, pressing the firing component causes the transmission rack to move a first preset distance along the forward direction. At this time, the trigger part abuts against the mode switching component to drive the mode switching component to reset the firing component, thereby disconnecting the firing and completing the closing operation. The firing component cannot be fired at this time. When the mode switching component is driven to switch to the avoidance position, the firing component can be fired to perform the firing operation.

[0008] In some embodiments, the mode switching component includes a cam stop rotatably connected to the bracket. The cam stop includes a stop portion and a push portion. The stop portion abuts against the trigger portion when the stop position is reached to drive the cam stop to rotate. The push portion pushes the firing assembly to reset when the trigger portion drives the cam stop to rotate, thereby disengaging the firing mechanism.

[0009] In some embodiments, the mode switching component further includes a cam reset member, which includes a first elastic member and a second elastic member, the first elastic member and the second elastic member being connected to the cam stop member respectively, for resetting the cam stop member along a first direction and a second direction.

[0010] In some embodiments, the firing assembly includes a firing element and a firing switch. The firing element is movably connected to the bracket, and the firing switch is fixedly connected to the bracket and electrically connected to the power assembly for controlling the movement of the power assembly. When the firing element is fired, the firing switch is triggered to control the power assembly to drive the transmission rack forward.

[0011] In some embodiments, the firing assembly further includes a firing reset member for resetting the firing element.

[0012] In some embodiments, the control handle further includes a retraction component, which includes a retraction switch and a slider. The retraction switch is electrically connected to the power component. When the transmission rack moves a second preset distance along the forward direction, the transmission rack pushes the slider to move along the forward direction, causing the slider to trigger the retraction switch. This causes the power component to drive the transmission rack to move along the retraction direction until the transmission rack retracts to the zero position. At this point, the transmission rack drives the slider to move along the retraction direction to disconnect the triggering of the retraction switch. The second preset distance is greater than the first preset distance.

[0013] In some embodiments, the drive rack has a groove along a direction parallel to the forward direction, and the slider is slidably connected to the groove. When the drive rack moves along the forward direction until the proximal end of the groove abuts the slider, the drive rack drives the slider to move along the forward direction, causing the slider to trigger the retraction switch, so that the power assembly drives the drive rack to move along the retraction direction. When the drive rack moves along the retraction direction until the distal end of the groove abuts the slider, the drive rack drives the slider to move along the retraction direction to disconnect the triggering of the retraction switch.

[0014] In some embodiments, the retraction assembly further includes a retraction trigger movably connected to the bracket; the retraction trigger selectively operates the slider to cause the slider to trigger the retraction switch.

[0015] In some embodiments, the control handle includes a transmission assembly and a manual retraction assembly. The transmission assembly includes a first gear, through which the transmission rack and the power assembly are connected. The first gear is axially movable relative to the bracket to disengage from the transmission rack. The manual retraction assembly includes a second gear that meshes with the transmission rack. When the first gear disengages from the transmission rack, the second gear is driven to retract the transmission rack.

[0016] In some embodiments, the manual retraction assembly further includes a cam and a wrench. The cam is rotatably connected to the bracket and abuts against the first gear. The wrench is used to drive the cam to rotate, causing the first gear to move and disengage from the rack. The wrench is also used to connect to the second gear to drive the second gear to rotate, thereby driving the rack to retract.

[0017] Secondly, embodiments of this application provide an electric stapler, including a clamp head, a shaft assembly, a battery module, and a control handle as described in the first aspect. The distal end of the shaft assembly is connected to the clamp head, and the proximal end of the shaft assembly is connected to the control handle. The battery module is detachably connected to the control handle and is used to provide electrical energy to the power assembly.

[0018] The electric anastomosis device control handle provided in this application embodiment has the following advantages: Since the transmission rack is slidably connected to the bracket, and the transmission rack includes a trigger part, the power component drives the transmission rack forward or backward, and the firing component performs a closing operation or a firing operation to control the movement of the power component; the mode switching component controls the firing component to switch from a closing operation to a firing operation. The mode switching component includes a stop position and a avoidance position. Therefore, when the mode switching component is in the stop position, pressing the firing component causes the transmission rack to move a first preset distance in the forward direction, at which point the trigger part abuts against the mode switching component, driving the mode switching component to reset the firing component, thus disengaging the firing and completing the closing operation. At this time, the firing component cannot be fired. When the mode switching component is driven to the avoidance position, the firing component can be fired to perform the firing operation. Thus, the mode switching component can be used to identify, stop, and avoid the closed position of the transmission rack, eliminating the need for sensors and control software. Consequently, the corresponding technical difficulty, structural complexity, and manufacturing cost are all relatively low.

[0019] The advantages of the electric stapler provided in this application compared to the prior art can be seen in the description of the advantages of the electric stapler control handle provided in this application compared to the prior art, which will not be repeated here. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a front view of the control handle of the electric stapler in the first embodiment of this application;

[0022] Figure 2 yes Figure 1 Rear view of the control handle of the electric stapler shown;

[0023] Figure 3 yes Figure 1 A partial structural diagram of the control handle of the electric stapler is shown;

[0024] Figure 4 yes Figure 1 Another partial structural diagram of the control handle of the electric stapler is shown;

[0025] Figure 5 yes Figure 1 The diagram shows the positional relationship between the drive rack and slider in the control handle of the electric stapler.

[0026] Figure 6 yes Figure 5 The diagram shows the structure of the electric stapler control handle corresponding to the transmission rack and slider.

[0027] Figure 7 yes Figure 5 A schematic diagram showing the positional relationship between the transmission rack and slider in another state;

[0028] Figure 8 This is a circuit diagram of the control handle of the electric stapler in the first embodiment of this application;

[0029] Figure 9 This is a front view of the control handle of the electric stapler in the second embodiment of this application;

[0030] Figure 10 yes Figure 9 Rear view of the control handle of the electric stapler shown;

[0031] Figure 11 yes Figure 10 A partial structural diagram of the control handle of the electrically controlled stapler is shown;

[0032] Figure 12 yes Figure 10 A partial structural schematic diagram of the control handle of the electric stapler in another state is shown.

[0033] Figure 13 yes Figure 10 A partial structural diagram of the control handle of the electric stapler in another state is shown.

[0034] Figure 14 yes Figure 10 A partial structural diagram of the control handle of the electric stapler in another state is shown.

[0035] Figure 15 yes Figure 10 A partial structural diagram of the control handle of the electric stapler in the latter state is shown.

[0036] Figure 16 yes Figure 10 A schematic diagram of the internal structure of the control handle of the electric stapler is shown.

[0037] Figure 17 yes Figure 16 A schematic diagram of the structure of the first operating element in the control handle of the electric stapler shown;

[0038] Figure 18 yes Figure 16 The diagram shows the structure of the transmission assembly, manual retraction assembly, and transmission rack in the control handle of the electric stapler.

[0039] Figure 19 yes Figure 10 The diagram shows the interaction between the transmission component and the second operating element in the control handle of the electric stapler.

[0040] The markings in the diagram mean:

[0041] 10. Bracket;

[0042] 20. Transmission rack;

[0043] 201, Slide; 2011, Proximal end; 2012, Distal end; 21, Moving part; 22, Triggering part;

[0044] 30. Power components;

[0045] 31. Motor; 32. Power supply;

[0046] 40. Firing assembly;

[0047] 41. Activating element; 411. Activating protrusion; 42. Activating reset element; 43. Rotating element; 44. Activating switch;

[0048] 50. Rollback component;

[0049] 51. Retract switch; 52. Slider; 53. Retract trigger; 54. Retract reset component;

[0050] 60. Mode switching component;

[0051] 61. Cam stop; 6101. Stop portion; 6102. Pushing portion; 611. Groove; 62. First elastic element; 63. Second elastic element;

[0052] 70. Main switch;

[0053] 71. Speed ​​control switch;

[0054] 80. Transmission components;

[0055] 81. The first gear;

[0056] 90. Manual rollback component;

[0057] 91. Second gear; 911. First socket; 92. Cam; 921. Second socket; 93. Wrench. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0059] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0061] In this specification, references to "one embodiment," "some embodiments," or simply "embodiment" mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. Furthermore, in one or more embodiments, specific features, structures, or characteristics may be combined in any suitable manner.

[0062] To illustrate the technical solution of this application, the following description is provided in conjunction with specific accompanying drawings and embodiments.

[0063] In related technologies, multiple sensors are typically installed in the electric stapler, and control software is used to identify the position of the pusher, thereby controlling the pusher to advance and retract in segments, perform braking and unlocking operations, and ultimately achieve jaw closure, as well as anastomosis and cutting. The corresponding technical difficulty, structural complexity and manufacturing cost are all relatively high.

[0064] In view of this, this application provides an electric stapler control handle and an electric stapler, which can improve the problems of high technical difficulty, structural complexity and manufacturing cost of electric staplers in related technologies.

[0065] Please refer to Figure 1 and Figure 2 , Figure 1 This is a front view of the control handle of the electric stapler in the first embodiment of this application. Figure 2 yes Figure 1 The rear view of the control handle of the electric stapler shown.

[0066] In a first aspect, the first embodiment of this application provides an electric stapler control handle, including a bracket 10, a transmission rack 20 and a power component 30. The transmission rack 20 is slidably connected to the bracket 10 and includes a trigger part 22. The power component 30 is used to drive the transmission rack 20 forward or backward.

[0067] The forward movement of the drive rack 20 means that the drive rack 20 moves from the proximal end of the electric stapler to the distal end of the electric stapler. The direction from the proximal end of the electric stapler to the distal end is as follows: Figure 1 The direction indicated by the middle arrow J. The retraction of the drive rack 20, i.e., the forward movement of the drive rack 20, moves from the distal end of the electric stapler towards the proximal end of the electric stapler. The direction from the distal end of the electric stapler to the proximal end is as follows: Figure 1 The direction indicated by the middle arrow H.

[0068] The control handle also includes a firing assembly 40 movably connected to the bracket 10 and a mode switching assembly 60 movably connected to the bracket 10. The firing assembly 40 performs a closing operation or a firing operation to control the movement of the power assembly 30; the mode switching assembly 60 is used to control the firing assembly 40 to switch from a closing operation to a firing operation, and the mode switching assembly 60 includes a stop position (e.g., Figure 2 and Figure 3 (The position it occupies) and the position to avoid.

[0069] When the mode switching component 60 is in the stop position, when the firing component 40 is pressed, the transmission rack 20 moves a first preset distance in the forward direction, and the trigger part 22 abuts against the mode switching component 60 to drive the mode switching component 60 to reset the firing component 40, thereby disconnecting the firing and completing the closing operation. At this time, the firing component 40 cannot be fired.

[0070] When the drive mode switching component 60 switches to the avoidance position, the firing component 40 can be fired to perform the firing operation.

[0071] The mode switching component 60 can be moved or rotated relative to the bracket 10 to an avoidance position.

[0072] As can be seen from the above, the electric stapler control handle provided in this application embodiment has a transmission rack 20 slidably connected to the bracket 10. The transmission rack 20 includes a trigger part 22, and the power component 30 is used to drive the transmission rack 20 forward or backward. The firing component 40 performs a closing operation or a firing operation to control the movement of the power component 30. The mode switching component 60 is used to control the firing component 40 to switch from a closing operation to a firing operation. The mode switching component 60 includes a stop position and a clearance position. Therefore, when the mode switching component 60 is in the stop position, pressing the firing component 40 will cause the transmission rack 20 to move forward or backward. When the gear 20 moves a first preset distance along the forward direction, the trigger 22 abuts against the mode switching component 60 to drive the mode switching component 60 to reset the firing component 40, thereby disconnecting the firing and completing the closing operation. At this time, the firing component 40 cannot be fired. When the drive mode switching component 60 switches to the avoidance position, the firing component 40 can be fired to perform the firing operation. Thus, the mode switching component 60 can be used to identify, stop, and avoid the closed position of the transmission rack 20 without the need for sensors and control software. The corresponding technical difficulty, structural complexity, and manufacturing cost are all relatively low.

[0073] Optionally, the transmission rack 20 includes a movable part 21 connected to the trigger part 22, the movable part 21 being used to connect to the pusher.

[0074] By adopting the above solution, only a small trigger part 22 needs to be provided on the moving part 21 to enable the transmission rack 20 to abut against the mode switching component 60, thereby making the structure of the transmission rack 20 simpler and facilitating the abutment between the transmission rack 20 and the mode switching component 60.

[0075] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 3 yes Figure 1 The diagram shows a partial structural schematic of the control handle of the electric stapler. Figure 4 yes Figure 1 Another partial structural diagram of the control handle of the electric stapler is shown.

[0076] In the first embodiment, the mode switching component 60 includes a cam stop 61, which is rotatably connected to the bracket 10. The cam stop 61 includes a stop portion 6101 and a push portion 6102. The stop portion 6101 is used to abut against the trigger portion 22 when in the stop position to drive the cam stop 61 to rotate (e.g., along the...). Figure 2 (in the direction indicated by the middle arrow i), the push part 6102 is used to push the firing assembly 40 to reset when the trigger part 22 drives the cam stop 61 to rotate, so as to disconnect the firing.

[0077] By adopting the above solution, the stop part 6101 can abut against the trigger part 22 when it is in the stop position, and can rotate to push the firing assembly 40 to reset and disconnect the firing.

[0078] Optionally, the cam stop 61 is provided with a groove 611, and the firing member 41 is provided with a firing protrusion 411. The firing protrusion 411 is located in the groove 611. When the triggering part 22 drives the cam stop 61 to rotate, the firing protrusion 411 abuts against the inner wall of the groove 611, and pushes the firing assembly 40 to reset through the firing protrusion 411, so as to disconnect the firing.

[0079] This configuration allows the firing assembly 40 to be easily reset by rotating the cam stop 61.

[0080] It should be noted that after the trigger part 22 drives the cam stop 61 to rotate, and the firing protrusion 411 abuts against the inner wall of the groove 611, the firing part 41 can no longer rotate relative to the bracket 10 to fire, thus achieving the closed position stop.

[0081] The firing assembly 40 includes a firing element 41 and a firing switch 44. The firing element 41 is movably connected to the bracket 10, and the firing switch 44 is fixedly connected to the bracket 10 and electrically connected to the power assembly 30 to control the movement of the power assembly 30. When the firing element 41 is fired, the firing switch 44 is triggered to control the power assembly 30 to drive the transmission rack 20 forward.

[0082] By adopting the above scheme, the firing switch 44 can be triggered by firing the firing element 41 relative to the bracket 10 to control the power component 30 to drive the transmission rack 20 forward.

[0083] Optionally, the firing assembly 40 further includes a firing reset member 42 for resetting the firing member 41.

[0084] This configuration allows the firing element 41 to be reset by the firing reset element 42 after the firing element 41 is fired.

[0085] For example, rotation of the firing element 41 relative to the support 10 allows the firing reset element 42 to accumulate forward elastic potential energy. This forward elastic potential energy drives the firing element 41 to rotate in the opposite direction relative to the support 10, causing the firing protrusion 411 to move out of the groove 611 and disengaging the firing switch 44 from the power assembly 30. The firing reset element 42 may be a spring, a torsion spring, or elastic rubber, etc.

[0086] It is understandable that if the firing element 41 is released at any time, the power assembly 30 will stop immediately, and if the firing element 41 is fired again, the power assembly 30 will drive the transmission rack 20 forward again.

[0087] Optionally, the firing assembly 40 also includes a rotating member 43 rotatably connected to the bracket 10. The firing member 41 rotates relative to the bracket 10 to abut against the rotating member 43, so that the rotating member 43 rotates relative to the bracket 10 and triggers the firing switch 44. The firing member 41 rotates in the opposite direction relative to the bracket 10, so that the rotating member 43 releases the triggering of the firing switch 44.

[0088] This configuration, by incorporating the rotating component 43, allows for greater flexibility in the placement of the firing element 41 and the firing switch 44.

[0089] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 In the first embodiment, the mode switching component 60 further includes a cam reset component, which includes a first elastic element 62 and a second elastic element 63. The first elastic element 62 and the second elastic element 63 are respectively connected to the cam stop component 61 for resetting the cam stop component 61 along the first direction and the second direction.

[0090] By adopting the above solution, the cam stop 61 can be kept in the stop position when the trigger part 22 is not in contact with the cam stop 61, and can be reset to the stop position after the cam stop 61 moves to the avoidance position.

[0091] The first direction can be perpendicular to the rotation axis of the cam stop 61, and the second direction can be parallel to the rotation axis of the cam stop 61. Multiple first elastic elements 62 and multiple second elastic elements 63 can be provided.

[0092] For example, two first elastic elements 62 may be provided, and the two first elastic elements 62 are respectively located on opposite sides of the cam stop 61 parallel to the first direction. Two second elastic elements 63 may be provided, and the two second elastic elements 63 are respectively located on opposite sides of the cam stop 61 parallel to the second direction.

[0093] For example, both the first elastic element 62 and the second elastic element 63 can be springs, sheet metal, or elastic rubber, etc.

[0094] It should be noted that when the power assembly 30 drives the transmission rack 20 to retract, the transmission rack 20 abuts against the cam stop 61, and the cam stop 61 is driven to rotate until the trigger part 22 of the transmission rack 20 disengages from the cam stop 61, and the cam stop 61 is reset under the action of the cam reset member.

[0095] It is understandable that, because the rotation direction of the cam stop 61 when the transmission rack 20 retracts is opposite to the rotation direction of the cam stop 61 when the transmission rack 20 advances, and when the transmission rack 20 retracts, there is no trigger 41 acting on the cam stop 61 in the rotation direction to limit the rotation angle of the cam stop 61, the cam stop 61 will not form a stop on the transmission rack 20 in this direction, that is, it will not affect the retraction of the transmission rack 20.

[0096] For example, when the transmission rack 20 moves forward, the trigger part 22 of the transmission rack 20 drives the cam stop member 61 to rotate, and the firing protrusion 411 abuts against the inner wall of the groove 611 of the wheel stop member 61. When the transmission rack 20 moves backward, the trigger part 22 drives the cam stop member 61 to rotate in the opposite direction, and the firing protrusion 411 moves out of the groove 611. There is no firing member 41 acting on the cam stop member 61 in the rotation direction, so the cam stop member 61 does not stop the transmission rack 20 in this direction.

[0097] It is also understandable that when the power component 30 drives the transmission rack 20 to retract, in order to avoid the cam stop 61 from blocking the transmission rack 20, the cam stop 61 can be directly switched to the avoidance position.

[0098] For example, when the power assembly 30 drives the transmission rack 20 to retract, in order to prevent the cam stop 61 from blocking the transmission rack 20, the cam stop 61 can be moved directly along the rotation axis of the cam stop 61, so that the cam stop 61 can switch to the avoidance position, the trigger part 22 of the transmission rack 20 disengages from the cam stop 61, and finally the cam stop 61 is reset under the action of the cam reset member.

[0099] Please refer to Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 , Figure 5 yes Figure 1 The diagram shows the positional relationship between the transmission rack 20 and the slider 52 in the control handle of the electric stapler. Figure 6 yes Figure 5 The diagram shows the structure of the electric stapler control handle corresponding to the transmission rack 20 and slider 52. Figure 7 yes Figure 5 The diagram shows the positional relationship between the transmission rack 20 and the slider 52 in another state.

[0100] In the first embodiment, the control handle further includes a retraction component 50, which includes a retraction switch 51 and a slider 52. The retraction switch 51 is electrically connected to the power component 30. When the transmission rack 20 moves a second preset distance in the forward direction, the transmission rack 20 pushes the slider 52 to move in the forward direction, causing the slider 52 to trigger the retraction switch 51. This causes the power component 30 to drive the transmission rack 20 to move in the retraction direction until the transmission rack 20 retracts to the zero position. At this point, the transmission rack 20 drives the slider 52 to move in the retraction direction, disconnecting the triggering of the retraction switch 51. The second preset distance is greater than the first preset distance.

[0101] By adopting the above scheme, the cam stop 61 can be moved relative to the bracket 10 to the avoidance position, so that the cam stop 61 is disengaged from the transmission rack 20, and the transmission rack 20 continues to move forward relative to the bracket 10 until it moves a second preset distance, so that the slider 52 triggers the retraction switch 51, so that the power component 30 drives the transmission rack 20 to move in the retraction direction until the transmission rack 20 retracts to the zero position.

[0102] Understandably, the automatic drive of the transmission rack 20 by the motor 31 to retract relative to the bracket 10 achieves tool retraction and jaw opening. Opening the jaws means retracting the tool to the zero position, i.e., the transmission rack 20 moves to the zero point position.

[0103] The retraction assembly 50 also includes a retraction trigger 53 movably connected to the bracket 10; the retraction trigger 53 selectively operates the slider 52 to trigger the retraction switch 51. This configuration facilitates selective operation of the slider 52 via the retraction trigger 53 to trigger the retraction switch 51.

[0104] In the first embodiment, the retractable trigger 53 is connected to a retractable reset member 54. The retractable trigger 53 moves forward relative to the bracket 10 to drive the slider 52 to move in the forward direction, and causes the retractable reset member 54 to accumulate retractable elastic potential energy. The retractable elastic potential energy is used to drive the retractable trigger 53 to retract relative to the bracket 10.

[0105] By adopting the above scheme, the slide block 52 can be moved along the forward direction by using the return trigger 53, so that after the slide block 52 triggers the return switch 51, the operation of the return trigger 53 is released, and under the action of the return reset member 54, the return trigger 53 is driven to return to the original position relative to the bracket 10, while the slide block 52 remains in the position of driving the return switch 51.

[0106] For example, the retraction reset element 54 may be a spring, torsion spring, sheet metal, or elastic rubber, etc.

[0107] In another embodiment, the retraction reset member 54 may not be provided, and the retraction trigger 53 may be connected to the slider 52.

[0108] With this configuration, the retractable trigger 53 and the slider 52 move together, enabling real-time control of the retractable trigger 53 and the transmission rack 20. That is, when the retractable trigger 53 is pulled, the slider 52 is disengaged from the retractable switch 51, the power component 30 stops rotating, and when the retractable trigger 53 is pushed in the forward direction again, the slider 52 triggers the retractable switch 51, so that the motor 31 drives the transmission rack 20 to retract relative to the bracket 10.

[0109] In another embodiment, the retractable trigger 53 includes a first trigger and a second trigger, the first trigger being connected to the slider 52 and the second trigger being electrically connected to the power assembly 30.

[0110] With this setup, the transmission rack 20 can be controlled by the first trigger. When the retraction trigger 53 is pulled back, the slider 52 is disengaged from the retraction switch 51, the power unit 30 stops rotating, and the retraction trigger 53 is pushed forward again. The slider 52 triggers the retraction switch 51, so that the motor 31 drives the transmission rack 20 to retract relative to the bracket 10. Alternatively, the power unit 30 can be driven to move in the opposite direction directly by the second trigger to drive the transmission rack 20 to retract relative to the bracket 10, thus realizing a one-button tool retraction function.

[0111] Please refer to the following for details. Figure 7In the first embodiment, a groove 201 is provided on the transmission rack 20 along a direction parallel to the forward direction, and the slider 52 is slidably connected to the groove 201. When the transmission rack 20 moves along the forward direction until the proximal end 2011 of the groove 201 abuts against the slider 52, the transmission rack 20 drives the slider 52 to move along the forward direction, causing the slider 52 to trigger the retraction switch 51, so that the power component 30 drives the transmission rack 20 to move along the retraction direction. When the transmission rack 20 moves along the retraction direction until the distal end 2012 of the groove 201 abuts against the slider 52, the transmission rack 20 drives the slider 52 to move along the retraction direction and disconnect, so that the slider 52 disconnects the triggering of the retraction switch 51.

[0112] By adopting the above scheme, the forward movement of the transmission rack 20 can trigger the return switch 51 and the return movement of the slider 52, and the return movement of the transmission rack 20 can also disengage the slider 52 from the return switch 51.

[0113] It should be noted that when the transmission rack 20 moves a second preset distance relative to the bracket 10 in the forward direction, the slider 52 contacts the distal end 2012 of the slide groove 201, causing the slider 52 to move. The slider 52 triggers the retraction switch 51. At this time, the firing switch 44 and the retraction switch 51 are pressed simultaneously, and the motor 31 achieves firing braking. The transmission rack 20 reaches the endpoint, that is, the transmission rack 20 moves to the farthest point in the forward direction. When the firing switch 44 is released, only the retraction switch 51 remains pressed. Therefore, the motor 31 drives the transmission rack 20 to retract until it returns to the zero position. At this time, the distal end 2012 strikes the slider 52 backward, causing the slider 52 to disconnect the triggering of the retraction switch 51. Therefore, the motor 31 achieves retraction braking.

[0114] Please refer to Figure 1 , Figure 2 and Figure 8 , Figure 8 This is a circuit diagram of the control handle of the electric stapler in the first embodiment of this application.

[0115] In the first embodiment, the power assembly 30 includes a motor 31 connected to a power supply 32. The firing assembly 40 includes a firing switch 44, which can electrically connect the positive terminal of the power supply 32 to the positive terminal of the motor 31 and the negative terminal of the power supply 32 to the negative terminal of the motor 31. The retraction assembly 50 includes a retraction switch 51, which can electrically connect the positive terminal of the power supply 32 to the negative terminal of the motor 31 and the negative terminal of the power supply 32 to the positive terminal of the motor 31.

[0116] By adopting the above solution, the power component 30 can drive the transmission rack 20 to move forward and backward relative to the bracket 10 with a single motor 31, thereby making the structure of the electric anastomosis control handle more compact.

[0117] Understandably, the circuitry of the electric stapler control handle can be equipped with protective capacitors, allowing it to perform the required functions without the use of relays.

[0118] Optionally, the electric anastomosis device control handle includes a main switch 70 and a speed control switch 71 connected in series. The main switch 70, speed control switch 71, and trigger switch 44 are connected in series, and the speed control switch 71 is connected in parallel with a voltage divider resistor. With this configuration, the main switch 70 can control the on / off state of the motor 31, and the speed control switch 71 can control the speed of the motor 31.

[0119] Under normal conditions, the main switch 70 is normally closed. When the electric stapler malfunctions and requires purely mechanical repair, the power is cut off via the main switch 70. When the electric stapler needs speed adjustment, closing the speed control switch 71 will short-circuit the voltage divider resistor and increase the output of the motor 31.

[0120] When the firing switch 44 and the retracting switch 51 are released simultaneously, the state is as follows: Figure 8 In the initial state, the two ends of motor 31 are short-circuited, achieving the brake holding state; when only the firing switch 44 is pressed, motor 31 rotates forward, and the transmission rack 20 moves along the first direction, achieving the closing of the jaws (if it has been unlocked, it achieves push-blade engagement and cutting); when only the retraction switch 51 is pressed, motor 31 rotates in reverse, and the transmission rack 20 moves along the second direction, achieving the opening of the jaws (if pressed during firing, the push-blade retracts); when the firing switch 44 and the retraction switch 51 are pressed simultaneously, the circuit is closed, and the two ends of motor 31 are at the same high voltage, which also achieves the braking function.

[0121] Please refer to Figures 9 to 15 , Figure 9 This is a front view of the control handle of the electric stapler in the second embodiment of this application. Figure 10 yes Figure 9 The rear view of the control handle of the electric stapler shown. Figure 11 yes Figure 10 The diagram shows a partial structural schematic of the control handle of the electric stapler. Figure 12 yes Figure 10 A partial structural diagram of the control handle of the electric stapler in another state is shown. Figure 13 yes Figure 10 The diagram shows a partial structural schematic of the control handle of the electric stapler in another state. Figure 14 yes Figure 10 The diagram shows a partial structural schematic of the control handle of the electric stapler in another state. Figure 15 yes Figure 10 The diagram shows a partial structural schematic of the control handle of the electric stapler in the latter state.

[0122] Unlike the first embodiment described above, in the second embodiment, the mode switching assembly 60 includes a first elastic member 62 connected to the cam stop member 61, and the firing assembly 40 includes a firing member 41, which is rotatably connected to the bracket 10. The firing member 41 is oriented relative to the bracket 10 in a third direction (e.g., Figure 11 , Figure 12 and Figure 13 Rotation (in the direction indicated by the middle arrow K) can control the power component 30 and drive the cam stop 61 to rotate from its initial position (e.g., along...). Figure 13 Rotating (as indicated by the middle arrow i) to the stop position, the first elastic element 62 accumulates the first elastic potential energy, which is used to drive the cam stop element 61 to rotate (as indicated by the middle arrow i). Figure 13 (rotate in the direction opposite to that indicated by arrow i) to the initial position to drive the firing element 41 relative to the support 10 in a fourth direction (such as... Figure 11 , Figure 12 and Figure 13 The direction indicated by the middle arrow L) is rotated, causing the firing element 41 to disengage, that is, to disconnect the control of the power unit 30. The fourth direction is the opposite of the third direction.

[0123] By adopting the above scheme, the first elastic element 62 can cause the cam stop 61 to automatically rotate to the initial position, and the firing element 41 can automatically disconnect the control of the power component 30, so as to prevent the power component 30 from continuing to drive the transmission rack 20 forward, thereby achieving braking of the transmission rack 20.

[0124] It should be noted that, similar to the first embodiment, in the second embodiment, moving the cam stop 61 along the rotation axis of the cam stop 61 can switch the cam stop 61 from the stop position to the avoidance position.

[0125] It is understood that in the second embodiment, when the cam stop 61 is in the initial position, the cam stop 61 is misaligned with the trigger part 22 of the transmission rack 20, and the cam stop 61 does not stop the transmission rack 20. Therefore, the transmission rack 20 is not constrained by the cam stop 61 when it retracts.

[0126] Please refer to this as well. Figures 16 to 19 , Figure 16 yes Figure 10 The diagram shows the internal structure of the control handle of the electric stapler. Figure 17 yes Figure 16 The diagram shows the structure of the first operating element 100 in the control handle of the electric stapler. Figure 18 yes Figure 16 The diagram shows the structure of the transmission assembly 80, manual retraction assembly 90, and transmission rack 20 in the control handle of the electric stapler. Figure 19 yes Figure 10The diagram shows the engagement of the transmission assembly 80 and the second operating element 110 in the control handle of the electric stapler.

[0127] In the second embodiment, the control handle includes a transmission assembly 80 and a manual retraction assembly 90. The transmission assembly 80 includes a first gear 81, and the transmission rack 20 and the power assembly 30 are connected by transmission through the first gear 81. The first gear 81 can move axially relative to the bracket 10 to disengage the first gear 81 from the transmission rack 20. The manual retraction assembly 90 includes a second gear 91, which meshes with the transmission rack 20. When the first gear 81 is disengaged from the transmission rack 20, the transmission rack 20 is driven to retract by driving the second gear 91.

[0128] By adopting the above scheme, after the electric stapler malfunctions, the first gear 81 can be disengaged from the transmission rack 20, and the transmission rack 20 can be driven to retract by driving the second gear 91.

[0129] It should be noted that in the first embodiment, a transmission component 80 and a manual retraction component 90 similar to those in the second embodiment may also be provided.

[0130] The manual retraction assembly 90 also includes a cam 92 and a wrench 93. The cam 92 is rotatably connected to the bracket 10 and abuts against the first gear 81. The wrench 93 is used to drive the cam 92 to rotate and move the first gear 81, so that the first gear 81 is disengaged from the transmission rack 20. The wrench 93 is also used to connect with the second gear 91 to drive the second gear 91 to rotate, thereby driving the transmission rack 20 to retract.

[0131] With this configuration, the cam 92 can be rotated by the wrench 93 to move the first gear 81, thereby disengaging the first gear 81 from the transmission rack 20 and driving the second gear 91 to rotate, thus driving the transmission rack 20 to retract.

[0132] Understandably, the wrench 93 drives the second gear 91 to rotate, which in turn causes the transmission rack 20 to advance, serving as a supplement when the firing force exceeds the limit, and completing the task that the motor 31 cannot perform when driving the stapler. When the electric stapler malfunctions, the wrench 93 can be connected to the second gear 91 to cause the transmission rack 20 to retract, completing the blade retraction and jaw opening.

[0133] Optionally, the second gear 91 is provided with a first insertion hole 911, and the cam 92 is provided with a second insertion hole 921, both of which mate with the wrench 93. This arrangement facilitates the connection of the second gear 91 and the cam 92 to the wrench 93.

[0134] In this embodiment, the wrench 93 is made separately as an accessory to reduce weight, which makes the control handle of the electric stapler lighter.

[0135] The electric stapler control handle provided in this application embodiment offers a novel, doctor-controlled solution for situations where the electric stapler malfunctions or the electric stapling force is insufficient. It features a simple overall structure, low cost, and light weight, offering a range of advantages.

[0136] Secondly, embodiments of this application provide an electric stapler, including a clamp head, a shaft assembly, a battery module, and a control handle as described in the first aspect. The distal end of the shaft assembly is connected to the clamp head, and the proximal end of the shaft assembly is connected to the control handle. The battery module is detachably connected to the control handle and is used to provide electrical energy to the power assembly 30.

[0137] The electric stapler control handle provided in this embodiment has a transmission rack 20 slidably connected to the bracket 10. The transmission rack 20 includes a trigger part 22. The power component 30 drives the transmission rack 20 forward or backward, and the firing component 40 performs a closing operation or a firing operation to control the movement of the power component 30. The mode switching component 60 controls the firing component 40 to switch from a closing operation to a firing operation. The mode switching component 60 includes a stop position and a clearance position. Therefore, when the mode switching component 60 is in the stop position, pressing the firing component 40 causes the transmission rack 20 to move forward. When the gear moves a first preset distance in the forward direction, the trigger 22 abuts against the mode switching component 60, thereby driving the mode switching component 60 to reset the firing component 40, thereby disconnecting the firing and completing the closing operation. At this time, the firing component 40 cannot be fired. When the driving mode switching component 60 switches to the avoidance position, the firing component 40 can be fired to perform the firing operation. Thus, the mode switching component 60 can be used to identify, stop, and avoid the closed position of the transmission rack 20 without the need for sensors and control software. The corresponding technical difficulty, structural complexity, and manufacturing cost are all relatively low.

[0138] The electric anastomosis device provided in this application adopts a purely mechanical structure to solve the problems of identifying the closed position, braking, and unlocking, which simplifies the structure and electric anastomosis operation workflow, reduces costs, and alleviates the burden on patients.

[0139] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A control handle for an electric stapler, characterized in that, It includes a bracket (10), a transmission rack (20) and a power assembly (30). The transmission rack (20) is slidably connected to the bracket (10). The transmission rack (20) includes a trigger part (22). The power assembly (30) is used to drive the transmission rack (20) forward or backward. The control handle also includes a firing assembly (40) movably connected to the bracket (10) and a mode switching assembly (60) movably connected to the bracket (10). The firing assembly (40) performs a closing operation or a firing operation to control the movement of the power assembly (30). The mode switching assembly (60) is used to control the firing assembly (40) to switch from the closing operation to the firing operation. The mode switching assembly (60) includes a stop position and a avoidance position. When the mode switching component (60) is in the stop position, when the firing component (40) is pressed, the transmission rack (20) moves a first preset distance along the forward direction, the trigger part (22) abuts against the mode switching component (60) to drive the mode switching component (60) to reset the firing component (40) to disconnect the firing and complete the closing operation. At this time, the firing component (40) cannot be fired. When the mode switching component (60) is driven to switch to the avoidance position, the firing component (40) can be fired to perform the firing operation.

2. The control handle according to claim 1, characterized in that, The mode switching component (60) includes a cam stop (61) rotatably connected to the bracket (10). The cam stop (61) includes a stop portion (6101) and a push portion (6102). The stop portion (6101) is used to abut against the trigger portion (22) when in the stop position to drive the cam stop (61) to rotate. The push portion (6102) is used to push the firing component (40) to reset when the trigger portion (22) drives the cam stop (61) to rotate, so as to disconnect firing.

3. The control handle according to claim 2, characterized in that, The mode switching component (60) further includes a cam reset component, which includes a first elastic element (62) and a second elastic element (63). The first elastic element (62) and the second elastic element (63) are respectively connected to the cam stop component (61) for resetting the cam stop component (61) along the first direction and the second direction.

4. The control handle according to claim 1, characterized in that, The firing assembly (40) includes a firing element (41) and a firing switch (44). The firing element (41) is movably connected to the bracket (10), and the firing switch (44) is fixedly connected to the bracket (10) and electrically connected to the power assembly (30) for controlling the movement of the power assembly (30). When the firing element (41) is fired, the firing switch (44) is triggered to control the power assembly (30) to drive the transmission gear (20) forward.

5. The control handle according to claim 4, characterized in that, The firing assembly further includes a firing reset member (42) for resetting the firing member (41).

6. The control handle according to claim 1, characterized in that, The control handle also includes a retraction component (50), which includes a retraction switch (51) and a slider (52). The retraction switch (51) is electrically connected to the power component (30). When the transmission rack (20) moves a second preset distance along the forward direction, the transmission rack (20) pushes the slider (52) to move along the forward direction, causing the slider (52) to trigger the retraction switch (51), so that the power component (30) drives the transmission rack (20) to move along the retraction direction until the transmission rack (20) retracts to the zero position. Then, the transmission rack (20) drives the slider (52) to move along the retraction direction to disconnect the triggering of the retraction switch (51). The second preset distance is greater than the first preset distance.

7. The control handle according to claim 6, characterized in that, The transmission rack (20) has a groove (201) along a direction parallel to the forward direction, and the slider (52) is slidably connected to the groove (201). When the transmission rack (20) moves along the forward direction until the proximal end (2011) of the groove (201) abuts against the slider (52), the transmission rack (20) drives the slider (52) to move along the forward direction, causing the slider (52) to trigger the retraction switch (51), so that the power assembly (30) drives the transmission rack (20) to move along the retraction direction. When the transmission rack (20) moves along the retraction direction until the distal end (2012) of the groove (201) abuts against the slider (52), the transmission rack (20) drives the slider (52) to move along the retraction direction to disconnect the triggering of the retraction switch (51).

8. The control handle according to claim 7, characterized in that, The retraction assembly (50) further includes a retraction trigger (53) movably connected to the bracket (10); the retraction trigger (53) selectively operates the slider (52) to trigger the retraction switch (51).

9. The control handle according to any one of claims 1 to 8, characterized in that, The control handle includes a transmission assembly (80) and a manual retraction assembly (90). The transmission assembly (80) includes a first gear (81), and the transmission rack (20) and the power assembly (30) are connected by the first gear (81). The first gear (81) is axially movable relative to the bracket (10) along the first gear (81) so that the first gear (81) is disengaged from the transmission rack (20). The manual retraction assembly (90) includes a second gear (91), which meshes with the transmission rack (20). When the first gear (81) is disengaged from the transmission rack (20), the transmission rack (20) is driven to retract by driving the second gear (91).

10. The control handle according to claim 9, characterized in that, The manual retraction assembly (90) further includes a cam (92) and a wrench (93). The cam (92) is rotatably connected to the bracket (10) and abuts against the first gear (81). The wrench (93) is used to drive the cam (92) to rotate so that the first gear (81) moves, thereby disengaging the first gear (81) from the transmission rack (20). The wrench (93) is also used to connect with the second gear (91) to drive the second gear (91) to rotate, thereby driving the transmission rack (20) to retract.

11. An electric stapler, characterized in that, The device includes a clamp head, a shaft assembly, a battery module, and a control handle as described in any one of claims 1 to 10, wherein the distal end of the shaft assembly is connected to the clamp head, the proximal end of the shaft assembly is connected to the control handle, and the battery module is detachably connected to the control handle for providing electrical energy to the power assembly (30).

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