Emergency rollback operation assembly, emergency rollback device and electric anastomat

Abstract

The utility model provides an emergency rollback operation assembly, an emergency rollback device and an electric anastomat, and the emergency rollback operation assembly comprises a first operation piece which comprises a first pivoting part and a first operation part; the second operation piece comprises a second pivot joint part, a second operation part and a rollback driving part, and the second pivot joint part is rotatably connected with the first pivot joint part so that the operation assembly can be switched between the folded state and the unfolded state; when the operation assembly is in the unfolding state, the first operation part and the second operation part are located on the two sides of the rollback driving part respectively. The emergency rollback operation assembly can be stored in the storage state to reduce the occupied space, the emergency rollback action of the electric anastomat can be driven when the emergency rollback operation assembly is unfolded, the two operation parts are located on the two sides of the rollback driving part respectively during operation, the acting force applied during rollback operation can be balanced and saved, the structure is simple, and use is convenient.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an emergency retraction operating assembly, an emergency retraction device, and an electric stapler. Background Art

[0002] Electric staplers play a vital role in modern surgery, using precise mechanical structures to rapidly cut and staple tissue. Within these mechanical structures, an emergency retraction mechanism ensures emergency operation in the event of a stapler failure. In existing designs, this is typically performed using a single-arm wrench, which is stored within the housing of the stapler when not in use.

[0003] The emergency retraction mechanism in existing electric staplers typically houses the retraction wrench within the device body. Due to limited storage space within the device body and interference with the housing during use, the retraction wrench is typically designed as a single-arm, foldable wrench that is stored in two sections within the device body. During use, it is unfolded to extend the lever arm and reduce torque. However, this single-arm structure results in unbalanced force on the wrench during emergency retraction, leading to device instability when the emergency retraction force is high. This can cause traction on the anastomotic stoma within the distal jaws, resulting in secondary damage. Utility Model Content

[0004] In response to the problems in the prior art, the purpose of this application is to provide an emergency retraction operation component, an emergency retraction device and an electric stapler. The emergency retraction operation component can be stored in the retracted state to reduce the occupied space, and can balance and save the force applied during the retraction operation when unfolded. It has a simple structure and is easy to use.

[0005] In a first aspect, the present application provides an emergency rollback operation component, including:

[0006] For an electric stapler, the emergency retraction operating assembly includes:

[0007] A first operating member includes a first pivoting portion and a first operating portion;

[0008] a second operating member, comprising a second pivoting portion, a second operating portion, and a retracting driving portion, wherein the second pivoting portion is rotatably connected to the first pivoting portion to switch the operating assembly between a retracted state and an extended state;

[0009] Wherein, when the operating assembly is in the expanded state, the first operating portion and the second operating portion are respectively located on both sides of the retracting driving portion.

[0010] In some embodiments, when the operating assembly is in the stored state, the first operating portion and the second operating portion are located on the same side of the retracting driving portion.

[0011] In some embodiments, the second pivoting portion and the retraction driving portion are provided at the same end of the second operating member, and the retraction driving portion is located on a side of the second pivoting portion away from the first pivoting portion.

[0012] In some embodiments, at least one side surface of the first operating portion and / or at least one side surface of the second operating portion is provided with an anti-slip structure.

[0013] In some embodiments, the first pivoting portion is provided with a first engaging structure, and the second pivoting portion is provided with a second engaging structure that cooperates with the first engaging structure, and the first engaging structure and the second engaging structure form an axial fixation.

[0014] In some embodiments, the first operating member is provided with a first stop portion, and the second operating member is provided with a second stop portion. When the operating assembly is in the unfolded state, the first stop surface of the first stop portion abuts against the second stop surface of the second stop portion.

[0015] In some embodiments, one of the first stop portion and the second stop portion is an arc-shaped groove, and the other is a protrusion, and the protrusion is at least partially embedded in the arc-shaped groove.

[0016] In some embodiments, the first stop surface and the second stop surface are respectively inclined.

[0017] The second aspect of the present application provides an emergency retraction device, which is applied to an electric stapler. The electric stapler includes a shell, and the emergency retraction device includes a power assembly, an actuator and the emergency retraction operating assembly described in the first aspect. The emergency retraction operating assembly is configured to be receivable inside the cavity of the shell.

[0018] A third aspect of the present application provides an electric stapler, comprising the emergency retraction operating assembly described in the first aspect or the emergency retraction device described in the second aspect.

[0019] An embodiment of the present application further provides an electric stapler, comprising the above-mentioned emergency retraction operating assembly.

[0020] The emergency retraction operating assembly, emergency retraction device, and electric stapler provided in this application have the following advantages:

[0021] The present application provides an emergency retraction operation component that switches states by rotating an operating member. In the retracted state, it can be stored to reduce the occupied space. In the expanded state, the retraction drive part can drive the emergency retraction action of the electric stapler. During operation, the first operating part and the second operating part are respectively located on both sides of the retraction drive part, so the force is more balanced, stable, and labor-saving, which can save the force applied during the retraction operation. It has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present application will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings.

[0023] Figure 1 This is a schematic diagram of the partial structure of the stapler body according to one embodiment of the present application;

[0024] Figure 2 This is a schematic diagram of the emergency retraction operating assembly in the stowed state according to an embodiment of the present application;

[0025] Figure 3 This is a schematic diagram of an emergency rollback operating assembly in an expanded state according to an embodiment of the present application;

[0026] Figure 4 1 is a side view of an emergency retraction operating component according to an embodiment of the present application;

[0027] Figure 5 1. It is a bottom view of the emergency retraction operating component of one embodiment of the present application;

[0028] Figure 6 1 is a top view of an emergency retraction operating component according to an embodiment of the present application;

[0029] Figure 7 yes Figure 6 Cross-sectional view in the AA direction;

[0030] Figure 8 yes Figure 6 Cross-sectional view in the middle BB direction;

[0031] Figure 9 yes Figure 6 Cross-sectional view in CC direction;

[0032] Figure 10 1 is a side view of an emergency retraction operating component according to an embodiment of the present application;

[0033] Figure 11 yes Figure 10 Cross-sectional view in the DD direction.

[0034] Reference numerals:

[0035] 1 First operating member (upper) 221 Second anti-slip structure

[0036] 11. Chamfer of the first pivoting portion 222

[0037] 111 buckle 23 second stop portion

[0038] 12 First operating part 24 Retraction drive part

[0039] 121 First anti-slip structure 3 power assembly

[0040] 13 First stop 4 Transmission assembly

[0041] 14 Rotation indicator 5 Actuator

[0042] 2 Second operating member (lower) 6 Housing

[0043] 21 Second pivoting portion 7 cavity

[0044] 211 Step 8 Retraction fitting

[0045] 22 Second operating unit DETAILED DESCRIPTION

[0046] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be comprehensive and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated descriptions will be omitted. "Or" and "or" in the specification may both mean "and" or "or". Although the terms "above", "below", "between", etc. may be used in this specification to describe different exemplary features and elements of the present application, these terms are used herein only for convenience, such as according to the directions of the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of this application. Although "first" or "second" etc. are used in this specification to represent certain features, they are only used to represent the function and are not intended to limit the number and importance of specific features.

[0047] The present application provides an emergency retraction operating assembly, an emergency retraction device, and an electric stapler. The electric stapler comprises a stapler body and a staple cartridge assembly located at the distal end of the stapler body. Figure 1 FIG is a partial structural diagram of the stapler body according to an embodiment of the present application. Figure 1As shown, the stapler body includes a housing 6 and an emergency retraction device at least partially located within the housing 6. The housing 6 defines a cavity 7. The emergency retraction device comprises a power assembly 3, a transmission assembly 4, an actuator 5, and the emergency retraction operating assembly. The emergency retraction operating assembly is configured to be housed within the cavity 7 of the housing 6 when in a stowed position. The power assembly 3 includes a motor. The transmission assembly 4 includes at least one transmission gear. The actuator 5 extends along the axial direction of the stapler and is movable along the axial direction. One side of the actuator 5 is provided with a toothed surface. The output shaft of the motor is connected to the actuator 5 via the transmission assembly 4, and the transmission gear transmits power from the motor output shaft to the actuator 5. When the power assembly 3 and transmission assembly 4 are operating normally, the motor drives the axial movement of the actuator 5, enabling normal operation and retraction of the stapler. When the motor rotates forward, it drives the actuator 5 distally, achieving the closing and firing of the stapler. When the motor rotates in reverse, it drives the actuator 5 in a proximal direction, retracting the stapler. The transmission assembly 4 also includes a retraction mating member 8, which is a shaft that passes through a gear in the transmission assembly 4. If the power assembly 3 or the transmission assembly 4 fails and the motor is unable to retract the stapler normally, the emergency retraction operating assembly can be connected to the retraction mating member 8 and driven to rotate, thereby achieving manual emergency retraction.

[0048] In this application, the distal end and the proximal end are relative to the operator, the end closer to the operator is the proximal end, the end farther from the operator, that is, the end closer to the surgical site is the distal end, and the direction along the axis of the stapler is the axial direction, that is, the direction from the distal end to the proximal end of the stapler, or from the proximal end to the distal end of the stapler. For example, in Figure 1 In the perspective of , the right side is the distal side of the stapler and the left side is the proximal side of the stapler.

[0049] like Figure 2 and Figure 3 As shown, the emergency retraction operating component includes a first operating member 1 and a second operating member 2. The first operating member 1 includes a first pivoting portion 11 and a first operating portion 12. The second operating member 2 includes a second pivoting portion 21, a second operating portion 22 and a retraction drive portion 24. The retraction drive portion 24 includes a hexagonal bolt hole. A nut portion that cooperates with the retraction drive portion 24 is provided on the top of the retraction fitting 8. When the emergency retraction operating component needs to be used for manual emergency retraction, the retraction drive portion 24 is sleeved on the retraction fitting 8 (shown in FIG. Figure 1) to achieve a non-rotatable connection between the two. Rotating the operating assembly can drive the retraction mating member 8 to rotate via the retraction driving portion 24, and then drive the actuator 5 to rotate via the gear. Therefore, in this embodiment, by providing a hexagon socket bolt hole on the retraction driving portion 24, it can be directly inserted into the top of the retraction mating member 8 for use, which is very convenient to operate.

[0050] The second pivotal portion 21 is rotatably connected to the first pivotal portion 11 so that the operating assembly can be switched between a stowed state and an unfolded state. Figure 2 The figure shows the storage state of the operating assembly. When the operating assembly is in the storage state, the first operating part 12 and the second operating part 22 are located on the same side of the retracting drive part 24, and the first operating part 12 and the second operating part 22 are at least partially attached to each other. The overall volume of the operating assembly is reduced. At this time, the operating assembly can be stored in the cavity 7 of the shell 6 without taking up any additional space. There is no need to provide separate packaging for the operating assembly, which makes storage and transportation very convenient. When it is needed, the operating assembly is taken out of the cavity 7 of the shell 6 (shown in FIG. 1 ). Figure 1 ) is taken out from the inside, the second operating part 22 can be rotated relative to the first operating part 12 to unfold the operating assembly. Figure 3 The figure shows the deployed state of the operating component. When the operating component is in the deployed state, the first operating part 12 and the second operating part 22 are respectively located on both sides of the retraction drive part 24, forming a structure that is basically balanced and symmetrical with respect to the retraction drive part 24. In the deployed state, the emergency retraction operating component is passed through the opening above the shell 6 and at least partially enters the opening of the shell 6. The retraction drive part 24 is sleeved on the top of the retraction fitting 8. At this time, the second operating part 2 is located at the bottom and the first operating part 1 is located at the top. The doctor applies a force on the first operating part 12 and the second operating part 22 to rotate them in a specified direction, which can drive the retraction fitting 8 to rotate. The retraction fitting 8 drives the gear meshing with the actuator 5 to rotate, thereby driving the actuator 5 to move in the proximal direction to achieve manual emergency retraction. During operation, since the first operating part 12 and the second operating part 22 are respectively located on both sides of the retraction drive part 24, the first operating part 1 and the second operating part 2 form two balanced operating arms. Compared with the single-arm wrench in the prior art, the force is more balanced, stable, and labor-saving, which can save the force applied by the doctor to the operating component during the retraction operation. It has a simple structure and is easy to use.

[0051] like Figures 3 to 6As shown, the second pivoting portion 21 and the retraction drive portion 24 are located at the same end of the second operating member 2, with the retraction drive portion 24 located on the side of the second pivoting portion 21 facing away from the first pivoting portion 11. When the operating assembly is in the deployed state, the first operating member 1 and the second operating member 2 form a 180-degree angle, forming a two-arm structure that is substantially symmetrical relative to the retraction drive portion 24 at the center. This symmetrical two-wing, two-arm structure in the deployed state ensures balance, stability, and energy savings when subjected to force, saving half the torque compared to a single-arm wrench.

[0052] like Figures 3-5 As shown, at least one side surface of the first operating portion 12 is provided with a first anti-slip structure 121. At least one side surface of the second operating portion 22 is provided with a second anti-slip structure 221. The first anti-slip structure 121 and the second anti-slip structure 221 are symmetrically arranged relative to the center position. The first anti-slip structure 121 and the second anti-slip structure 221 are, for example, arranged as concave-convex structures. When operating, the doctor can place his hands on the first anti-slip structure 121 and the second anti-slip structure 221, which makes the operation more convenient, prevents the hands from slipping and detaching from the operating component, and improves the stability of the actuator's retraction process. Figure 5 As shown, the second operating part 22 is provided with a chamfer 222, which facilitates the doctor to operate the second operating part 2 to rotate and unfold the operating assembly. Specifically, when the operating assembly is in the storage state, the first operating part 12 and the second operating part 22 are located on the same side of the retracting drive part 24, and the first operating part 12 and the second operating part 22 are in contact with each other. When the doctor needs to use it, he applies a force at the chamfer 222 position to rotate the second operating part 22 relative to the first operating part 12, so that the operating assembly can be opened more conveniently. Figure 6 As shown, a rotation indicator 14 is provided on the top surface of the first pivoting portion 11 of the first operating portion 12. The rotation indicator 14 includes an arrow. This arrow indicates the rotation direction that the physician should use when performing a retraction operation using the operating assembly. The provision of the rotation indicator 14 can prevent physicians from making incorrect rotations during operation, thereby preventing the actuator 5 from moving distally.

[0053] like Figure 6 and Figure 7As shown, the first pivoting portion 11 is provided with a first snap-fit structure, and the second pivoting portion 21 is provided with a second snap-fit structure that cooperates with the first snap-fit structure, and the first snap-fit structure and the second snap-fit structure form an axial fixation. In this embodiment, the second pivoting portion 21 is provided with a cavity, and the first snap-fit mechanism includes at least one snap-fit 111, and the snap-fit 111 is at least partially located inside the cavity. The second snap-fit structure includes a step portion 211 located on the inner wall of the cavity. The snap-fit 111 is snapped on the step portion 211 to achieve axial fixation of the first pivoting portion 1111 and the second pivoting portion 2121, preventing the second pivoting portion 2121 from disengaging downward from the first pivoting portion 1111 when the operating assembly is in use. In other alternative embodiments, the first snap-fit structure may be a step portion and the second snap-fit structure may be a snap-fit, and the two may form an axial fixation, which also falls within the scope of protection of this application.

[0054] like Figures 8-10 As shown, the first operating member 1 is provided with a first stop 13, and the second operating member 2 is provided with a second stop 23. When the operating assembly is in the deployed state, the first stop 13 and the second stop 23 abut against each other, preventing the operating assembly from being deployed too far. One of the first stop 13 and the second stop 23 is an arcuate groove, and the other is a protrusion, which is at least partially embedded in the arcuate groove. Figure 11 In the example, the first stop portion 13 is an arc groove and the second stop portion 23 is a convex block. When the operating assembly is in the storage state, the convex block and the first end of the arc groove ( Figure 11 When the operating assembly is in the expanded state, the protrusion and the second end of the arc groove ( Figure 11 The first and second operating members 1 and 2 are supported by each other to prevent the expansion angle between the first operating member 1 and the second operating member 2 from being too large, which is beneficial to maintaining the first operating member 1 and the second operating member 2 in a state where the difference is 180 degrees, thereby improving the operational stability during use.

[0055] like Figure 9 and Figure 11As shown, the first stop portion 13 includes an inclined circumferential first stop surface, and the second stop portion 23 includes an inclined second stop surface. The first stop surface and the second stop surface are inverted inclined surfaces. When the first stop surface and the second stop surface are in contact with each other at the position a shown in the figure, they prevent the second operating member 2 from moving in the direction away from the first operating member 1. This prevents the second operating member 2 from disengaging downward from the first operating member 1 when the operating assembly is in use. In another embodiment, a snap-fit structure may also be provided at the first stop surface and the second stop surface, which ensures the axial position stability of the first operating member 1 and the second operating member 2 through a snap-fit connection, and prevents the second operating member 2 from disengaging downward from the first operating member 1 when the operating assembly is in use.

[0056] In this embodiment, only one structure of the retraction drive portion 24 is shown by way of example. In other embodiments, the retraction drive portion 24 and the retraction mating member 8 may also employ other mating structures. For example, the inner wall of the retraction drive portion 24 may be provided with a ridge, and the surface of the retraction mating member 8 may be provided with a groove, with the ridge embedded in the groove, or the retraction drive portion 24 and the retraction mating member 8 may be connected by a threaded connection, etc., all of which fall within the scope of protection of this application.

[0057] In summary, the present application provides an emergency retraction operation component that switches states by rotating an operating member. In the retracted state, it can be stored to reduce the occupied space. In the expanded state, the retraction drive part 24 can drive the emergency retraction action of the electric stapler. During operation, the first operating part 12 and the second operating part 22 are respectively located on both sides of the retraction drive part 24, so that the force is more balanced, stable, and labor-saving, which can save the force applied during the retraction operation. It has a simple structure and is easy to use.

[0058] The above content is a further detailed description of the present application in conjunction with specific preferred embodiments, and the specific implementation of the present application cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, several simple deductions or substitutions can be made without departing from the concept of the present application, and all of them should be considered to fall within the scope of protection of the present application.

Claims

1. An emergency fallback operating component, characterized in that: For an electric stapler, the emergency retraction operating assembly includes: A first operating member includes a first pivoting portion and a first operating portion; a second operating member, comprising a second pivoting portion, a second operating portion, and a retracting driving portion, wherein the second pivoting portion is rotatably connected to the first pivoting portion to switch the operating assembly between a retracted state and an extended state; Wherein, when the operating assembly is in the expanded state, the first operating portion and the second operating portion are respectively located on both sides of the retracting driving portion.

2. The emergency rollback operating assembly according to claim 1, characterized in that: When the operating assembly is in the stored state, the first operating portion and the second operating portion are located on the same side of the retracting driving portion.

3. The emergency rollback operating assembly according to claim 1, characterized in that: The second pivoting portion and the retracting driving portion are provided at the same end of the second operating member, and the retracting driving portion is located on a side of the second pivoting portion away from the first pivoting portion.

4. The emergency rollback operating assembly according to claim 1, characterized in that: At least one side surface of the first operating portion and / or at least one side surface of the second operating portion is provided with an anti-slip structure.

5. The emergency rollback operating assembly according to claim 1, characterized in that: The first pivoting portion is provided with a first clamping structure, and the second pivoting portion is provided with a second clamping structure matched with the first clamping structure, and the first clamping structure and the second clamping structure are axially fixed.

6. The emergency rollback operating assembly according to claim 1, characterized in that: The first operating member is provided with a first stop portion, and the second operating member is provided with a second stop portion. When the operating assembly is in the unfolded state, the first stop surface of the first stop portion abuts against the second stop surface of the second stop portion.

7. The emergency rollback operating assembly according to claim 6, characterized in that: One of the first stop portion and the second stop portion is an arc-shaped groove, and the other is a convex block, and the convex block is at least partially embedded in the arc-shaped groove.

8. The emergency rollback operating assembly according to claim 6, characterized in that: The first stop surface and the second stop surface are respectively arranged to be inclined.

9. An emergency retraction device, characterized in that: Applied to an electric stapler, the electric stapler includes a shell, the emergency retraction device includes a power component, an actuator and an emergency retraction operating component according to any one of claims 1 to 8, and the emergency retraction operating component is configured to be receivable inside the cavity of the shell.

10. An electric stapler, characterized in that: The device comprises the emergency retraction operating assembly according to any one of claims 1 to 8 or the emergency retraction device according to claim 9.

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