Swinging head device and electric anastomat

Abstract

The invention provides a head swinging device and an electric anastomat, the electric anastomat comprises an instrument platform and a nail head part connected to the far end of the instrument platform, the head swinging device comprises a power mechanism, the power mechanism comprises a motor and an output shaft, and the motor is configured to drive the output shaft to move in the axial direction of the anastomat; the near end of the transmission mechanism is connected to the output shaft, the far end of the transmission mechanism is connected to the nail head part, and the transmission mechanism is configured to be driven by the output shaft to move in the axial direction of the anastomat so as to drive the nail head part to swing in the transverse direction of the anastomat relative to the instrument platform. Electric automatic head swinging of the electric anastomat is achieved, an operator can adjust the nail head part to the needed angle through single-hand operation, and the use experience of the anastomat is improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a swing head device and an electric stapler. Background Art

[0002] The electrification of surgical staplers is a future development trend, which can reduce the pulling of the stapler on the tissue during operation, reduce the firing vibration, and improve the quality of tissue staplement. The electric stapler includes an instrument platform and a nail head connected to the distal end of the instrument platform. The instrument platform is provided with a closing and firing assembly that can drive the nail head to close and fire. The nail head can suturing and cutting of tissue by the drive of the closing and firing assembly. In order to adapt to different surgical scenarios, it is necessary to adjust the swing angle of the nail head relative to the instrument platform, that is, to realize the swing head control of the stapler. However, the existing electric staplers cannot realize the electric swing head of the nail head. The operator needs to hold the instrument platform with one hand and operate the manual swing head with the other hand. Single-handed operation cannot be achieved, which affects the operator's experience. Summary of the invention

[0003] In response to the problems in the prior art, the purpose of the present application is to provide a head swing device and an electric stapler to achieve electric automatic head swing of the electric stapler and improve the user experience of the stapler.

[0004] The present application provides a head swing device for an electric stapler, wherein the electric stapler comprises an instrument platform and a stapler head connected to the distal end of the instrument platform, and the head swing device comprises:

[0005] A power mechanism, comprising a motor and an output shaft, wherein the motor is configured to drive the output shaft to move along the axial direction of the stapler;

[0006] A transmission mechanism, wherein the proximal end of the transmission mechanism is connected to the output shaft, the distal end of the transmission mechanism is connected to the nail head, and the transmission mechanism is configured to be driven by the output shaft to move along the axial direction of the stapler, and drive the nail head to swing laterally along the stapler relative to the instrument platform.

[0007] In some embodiments, the motor is a linear motor, the power mechanism further includes a reducer, and the motor is connected to the output shaft via the reducer.

[0008] In some embodiments, the motor is a rotary motor, and the power mechanism further includes a motion conversion component, wherein the motor is connected to the output shaft via the motion conversion component, and the motion conversion component is configured to convert the rotary motion output by the motor into linear motion.

[0009] In some embodiments, the transmission mechanism includes a first transmission member, a connecting member, and a second transmission member, and the output shaft is connected to the proximal end of the nail head through the first transmission member, the connecting member, and the second transmission member in sequence.

[0010] In some embodiments, the connecting member includes a rotating connecting portion and a fixing portion, the distal end of the first transmission member is rotatably connected to the rotating connecting portion, and the proximal end of the second transmission member is non-rotatably connected to the fixing portion.

[0011] In some embodiments, the connecting member is provided with an opening, the rotating connecting portion includes a hole wall surrounding the opening, and the distal end of the first transmission member is slidably connected to the hole wall.

[0012] In some embodiments, the first transmission member includes a first section and a second section, the first section is located at the proximal end of the second section, and the first section and the second section are connected via a bending portion so that the first section is located laterally outside the second section.

[0013] In some embodiments, the first transmission member is a sheet-like rod, and a torsion portion is provided at the distal end of the first transmission member so that the surface direction of the first transmission member at the distal end is twisted from being parallel to the longitudinal direction to being parallel to the transverse direction.

[0014] The present application also provides an electric stapler, comprising the above-mentioned swing head device.

[0015] The swing head device and electric stapler provided by the present application have the following advantages:

[0016] By adopting the present application, when the angle of the nail head needs to be adjusted, the power mechanism drives the transmission mechanism to move along the axial direction of the stapler, and the transmission mechanism drives the nail head to move laterally along the stapler relative to the instrument platform, thereby realizing the electric automatic head swing of the electric stapler. The operator can adjust the nail head to the required angle with one hand, thereby improving the user experience of the stapler. The operator can adjust the angle of the nail head according to different usage scenarios and surgical needs. The use of the nail head is more flexible, which broadens the range of usage scenarios of the electric stapler. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings.

[0018] Figure 1 is a schematic diagram of an instrument platform of an electric stapler according to an embodiment of the present application;

[0019] Figure 2 is a top view of an instrument platform of an electric stapler according to an embodiment of the present application;

[0020] Figure 3 is a top view of a head swing device according to an embodiment of the present application;

[0021] Figure 4 It is a schematic diagram of the cooperation between the power mechanism and the first transmission member of an embodiment of the present application.

[0022] Reference numerals:

[0023] 1 Power mechanism 213 Bending part

[0024] 11 Motor 214 Torsion unit

[0025] 12 reducer 22 connector

[0026] 13 Motion conversion assembly 221 opening

[0027] 14 Output shaft 222 hole wall

[0028] 2 Transmission mechanism 223 Fixed part

[0029] 21 first transmission member 23 second transmission member

[0030] 211 Proximal end of first transmission member 5 Rack

[0031] 212 distal end of first transmission member 6 firing drive motor DETAILED DESCRIPTION

[0032] The 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 being limited to the embodiments set forth herein; on the contrary, these embodiments are provided so that the present application will be comprehensive and complete, and the concept of the example embodiments will be fully conveyed 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 "upper", "lower", "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 direction of the structure to fall within the scope of the present 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 used as a limitation on the number and importance of specific features.

[0033] The present application provides a head swinging device and an electric stapler including the head swinging device. The electric stapler includes an instrument platform and a nail head connected to the distal end of the instrument platform. The head swinging device includes a power mechanism and a transmission mechanism. The power mechanism includes a motor and an output shaft, and the motor is configured to drive the output shaft to move axially along the stapler when started. The proximal end of the transmission mechanism is connected to the output shaft, and the distal end of the transmission mechanism is connected to the nail head. The transmission mechanism is configured to be driven by the output shaft to move axially along the stapler, and drive the nail head to swing laterally relative to the instrument platform along the stapler. When the angle of the nail head needs to be adjusted, the operator starts the motor of the power mechanism, drives the transmission mechanism to move axially along the stapler through the output shaft, and drives the nail head to move laterally along the stapler relative to the instrument platform through the transmission mechanism, thereby realizing the electric automatic head swing of the electric stapler. The operator can adjust the nail head to the required angle with one hand, thereby improving the user experience of the stapler. The operator can adjust the angle of the nail head according to different usage scenarios and surgical needs. The use of the nail head is more flexible, which broadens the range of usage scenarios of the electric stapler.

[0034] The specific structure of the swing head device and the electric stapler in a specific example is introduced below with reference to the accompanying drawings. It should be understood that the accompanying drawings and the following description are only examples and are not intended to limit the scope of protection of the present application. In the present application, the distal end and the proximal end are relative to the operator. The distal end is farther from the operator, that is, closer to the surgical site, and the proximal end is closer to the operator, that is, farther from the surgical site. The axial direction refers to the direction from the distal end to the proximal end or from the proximal end to the distal end of the stapler, the transverse direction refers to the width direction of the stapler, and the longitudinal direction is the height direction. As shown in Figure 2 In the perspective of S1, the direction S1 or the direction opposite to S1 is the axial direction, and the direction S2 or the direction opposite to S2 is the lateral direction. Figure 1 The vertical direction in the viewing angle is the longitudinal direction. The outer side and the inner side are relative to the axis S0 of the stapler (shown in FIG. Figure 3 ), the side close to the axis S0 of the stapler is the inner side, and the side away from the axis S0 of the stapler is the outer side.

[0035] Figure 1 and Figure 2The partial structure of an electric stapler according to an embodiment of the present application is shown. The electric stapler includes an instrument platform and a nail head (not shown) connected to the distal end of the instrument platform, and the nail head includes a nail anvil and a nail magazine arranged opposite to each other. The instrument platform includes a housing and a firing drive motor 6, a rack 5 and a swing head device arranged inside the housing. The output shaft of the firing drive motor 6 is meshed with the rack 5 through a gear. After the nail head is placed in the surgical position and the surgical preparations are made, the firing drive motor 6 is started, and the firing drive motor 6 drives the rack 5 to move along the axial direction of the stapler, thereby closing the jaws of the nail head and executing the firing of the stapler, suturing and cutting the tissue through the nail head, and the jaws of the nail head can be automatically opened after the stapler is fired.

[0036] like Figures 1 to 3 As shown, the head swinging device includes a power mechanism 1 and a transmission mechanism 2. The power mechanism 1 includes a motor 11 and an output shaft 14. The motor 11 is configured to drive the output shaft 14 to move along the axial direction of the stapler when it is started. The forward and reverse rotation of the motor 11 can drive the output shaft 14 to move in different directions. The proximal end of the transmission mechanism 2 is connected to the output shaft 14, and the distal end of the transmission mechanism 2 is connected to the proximal end of the nail head. The transmission mechanism 2 is configured to be driven by the output shaft 14 to move along the axial direction of the stapler, and drive the nail head to swing horizontally relative to the instrument platform along the stapler, that is, to realize electric automatic head swinging.

[0037] like Figures 3-4 As shown, the transmission mechanism 2 includes a first transmission member 21, a connecting member 22, and a second transmission member 23. The output shaft 14 is connected to the proximal end 211 of the first transmission member 21, the distal end 212 of the first transmission member 21 and the proximal end of the second transmission member 23 are respectively connected to the connecting member 22, and the distal end of the second transmission member 23 is connected to the proximal end of the nail head. The power mechanism 1 drives the second transmission member 23 to move axially through the first transmission member 21 and the connecting member 22 in turn. The first transmission member 21 and the second transmission member 23 can be rods, plates, tubular members, etc. Figure 3 From the perspective of FIG. 1 , when the power mechanism 1 drives the second transmission member 23 to move toward the proximal direction, the nail head can be driven along Figure 3 When the power mechanism 1 drives the second transmission member 23 to move toward the distal end, the nail head can be driven along the Figure 3 The swing angle of the nail head can be controlled by controlling the movement stroke of the motor 11.

[0038] Therefore, by adopting the head swing device, when the angle of the nail head needs to be adjusted, the operator starts the motor 11 of the power mechanism 1, drives the transmission mechanism 2 to move along the axial direction of the stapler through the output shaft 14, and drives the nail head to move laterally along the stapler relative to the instrument platform through the transmission mechanism 2, that is, the electric automatic head swing of the electric stapler is realized, and the operator can adjust the nail head to the required angle with one hand, which improves the use experience of the stapler. Buttons for controlling the forward and reverse rotation of the motor 11 can be set on the shell of the instrument platform. The operator can realize the lateral swing of the electric driven nail head by pressing the corresponding button. The structure is simple and easy to use. The operator can adjust the angle of the nail head according to different usage scenarios and surgical needs. The use of the nail head is more flexible, which broadens the range of usage scenarios of the electric stapler.

[0039] like Figure 4 As shown, the motor 11 is a rotary motor, and the power mechanism 1 further includes a reducer 12 and a motion conversion assembly 13. The motor 11 is connected to the output shaft 14 through the reducer 12 and the motion conversion assembly 13 in sequence, and the motion conversion assembly 13 is configured to convert the rotary motion output by the motor 11 into a linear motion. The motion conversion assembly 13 may, for example, include a ball screw structure, or include a screw-nut matching structure, etc. The present application is not limited to this. In another embodiment, the motor 11 may be a linear motor, and the power mechanism 1 further includes a reducer 12, and the motor 11 is directly connected to the output shaft 14 through the reducer 12.

[0040] like Figure 3 The nail head can be driven to rotate around the axis S0 of the stapler, so that the use of the nail head is more flexible, further broadening the use scenario range of the electric stapler. When the nail head rotates around the axis, the second transmission member 23 also rotates around the axis with the nail head.

[0041] In this embodiment, the connecting member 22 includes a rotating connecting portion and a fixing portion 223, the distal end 212 of the first transmission member 21 is rotatably connected to the rotating connecting portion, and the proximal end of the second transmission member 23 is non-rotatably connected to the fixing portion 223. The shape of the connecting member 22 is exemplarily shown in the figure, but the present application is not limited thereto. When the nail head rotates around the axis, the second transmission member 23 and the connecting member 22 also rotate around the axis, while the first transmission member 21 does not rotate therewith, thereby maintaining the stability of the connection between the first transmission member 21 and the output shaft 14. Therefore, this embodiment can simultaneously realize the electric swing head function and the rotation function around the axis of the nail head, and the electric swing head function and the rotation function around the axis do not interfere with each other. In this embodiment, the connecting member 22 is provided with an opening 221, and the opening 221 is a circular hole or a nearly circular hole. The rotating connection portion includes a hole wall 222 surrounding the opening 221, and the distal end 212 of the first transmission member 21 forms a hook-shaped portion, which is clamped on the hole wall 222, and the opening of the hook-shaped portion is larger than the wall thickness of the hole wall 222, so that the hook-shaped portion is slidably connected with the hole wall 222. When the second transmission member 23 and the connecting member 22 rotate around the axis, the first transmission member 21 does not rotate, and the distal end 212 of the first transmission member 21 slides on the hole wall 222. The connection mode of the proximal end of the second transmission member 23 and the fixing portion 223 of the connecting member 22, the connection mode of the distal end of the second transmission member 23 and the proximal end of the nail head, and the connection mode of the proximal end 211 of the first transmission member 21 and the output shaft 14 can be one or more of the following modes: clamping, fitting, sleeve connection, welding, pin connection, screw connection, riveting, etc., and the present application does not limit this.

[0042] Combination Figure 2 and Figure 4 It can be seen that the motor 11 is located outside the rack 5. The first transmission member 21 includes a first section, a bending portion 213, and a second section arranged in sequence from the proximal end to the distal end. The first section is between the proximal end 211 of the first transmission member 21 and the bending portion 213, and the second section is between the distal end 212 of the first transmission member 21 and the bending portion 213. The first section is located outside the second section, that is, the second section is retracted inward relative to the first section, which is conducive to reducing the external dimensions of the connecting member 22 matched with the second section. Figure 4As shown, the first transmission member 21 is a sheet-like rod, and the distal end 212 of the first transmission member 21 is provided with a torsion portion 214, so that the surface direction of the first transmission member 21 at the distal end is twisted from parallel to the longitudinal direction to parallel to the transverse direction. In another embodiment, the torsion portion 214 may not be provided, and the distal end 212 of the first transmission member 21 is clamped at the hole wall 222 below the opening 221. In this embodiment, through the structural design and position arrangement of the motor 11, the rack 5, the first transmission member 21, the second transmission member 23 and the connecting member 22, the overall structure is made more compact, which is conducive to reducing the overall volume of the instrument platform of the electric stapler.

[0043] In the above embodiments, the transmission mechanism 2 includes a first transmission member 21, a connecting member 22, and a second transmission member 23. In other embodiments, the first transmission member 21 and the second transmission member 23 may also adopt other axially fixed but relatively rotatable connection methods. In embodiments where the nail head does not need to rotate around the axis, the first transmission member 21, the connecting member 22, and the second transmission member 23 may also be integrally formed into one component, which also falls within the protection scope of this application.

[0044] The above content is a further detailed description of the present application in combination with specific preferred implementation methods, and it cannot be determined that the specific implementation of the present application is 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, which should be deemed to fall within the scope of protection of the present application.

Claims

1. A head swing device, characterized in that: Used for an electric stapler, the electric stapler comprises an instrument platform and a staple head connected to the distal end of the instrument platform, the swing head device comprises: A power mechanism, comprising a motor and an output shaft, wherein the motor is configured to drive the output shaft to move along the axial direction of the stapler; A transmission mechanism, wherein the proximal end of the transmission mechanism is connected to the output shaft, the distal end of the transmission mechanism is connected to the nail head, and the transmission mechanism is configured to be driven by the output shaft to move along the axial direction of the stapler, and drive the nail head to swing laterally along the stapler relative to the instrument platform.

2. The head swing device according to claim 1, characterized in that: The motor is a linear motor, and the power mechanism further includes a reducer, through which the motor is connected to the output shaft.

3. The head swing device according to claim 1 or 2, characterized in that: The motor is a rotary motor, and the power mechanism further includes a motion conversion component, through which the motor is connected to the output shaft, and the motion conversion component is configured to convert the rotary motion output by the motor into linear motion.

4. The head swing device according to claim 1, characterized in that: The transmission mechanism comprises a first transmission member, a connecting member and a second transmission member, and the output shaft is connected to the proximal end of the nail head through the first transmission member, the connecting member and the second transmission member in sequence.

5. The head swing device according to claim 4, characterized in that: The connecting member includes a rotating connecting portion and a fixing portion, the distal end of the first transmission member is rotatably connected to the rotating connecting portion, and the proximal end of the second transmission member is non-rotatably connected to the fixing portion.

6. The head swing device according to claim 5, characterized in that: The connecting member is provided with an opening, the rotating connecting portion includes a hole wall surrounding the opening, and the distal end of the first transmission member is slidably connected to the hole wall.

7. The head swing device according to claim 5, characterized in that: The first transmission member includes a first section and a second section, the first section is located at the proximal end of the second section, and the first section and the second section are connected via a bending portion so that the first section is located laterally outside the second section.

8. The head swing device according to claim 5, characterized in that: The first transmission member is a sheet-shaped rod member, and a twisting portion is provided at the distal end of the first transmission member so that the surface direction of the first transmission member at the distal end is twisted from being parallel to the longitudinal direction to being parallel to the transverse direction.

9. An electric stapler, characterized in that: The invention comprises the swing head device according to any one of claims 1 to 8.

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