Single-motor dual-drive structure and electric anastomat

Abstract

The utility model discloses a single-motor dual-drive structure and electric anastomat, the anastomat includes the single-motor dual-drive structure, the single-motor dual-drive structure includes a toggle gear, a motor gear and two drive gears, the two drive gears are respectively engaged and connected to two sides of the motor gear, and the two drive gears are respectively engaged and connected with the toggle gear. The two driving gears are correspondingly connected with a first rack and a second rack respectively, the first rack and the second rack are arranged on the two sides of the stirring gear respectively and meshed with the stirring gear, and the output end of the first driving gear and the output end of the second driving gear are connected with a first coupler and a second coupler respectively. The stirring knob drives the first rack and the second rack to move reversely through the stirring gear, and then the first driving gear and the second driving gear are synchronously driven to move reversely front and back to achieve dislocation, so that the first coupler and the second coupler are staggered front and back. By means of the mode, the double-drive effect is achieved through cooperation of the front-back movement of the two racks and the single motor, and stability is higher.

Description

Technical Field

[0001] This utility model relates to the field of electric stapler technology, and in particular to a single-motor dual-drive structure and an electric stapler. Background Technology

[0002] The long electric stapler is a medical device that uses an electric drive to achieve tissue anastomosis. It is mainly used for the transection, resection and / or anastomosis of organs, tissues or blood vessels in the body, and is suitable for a variety of open or minimally invasive surgeries.

[0003] Currently, the electric drive component of the long anastomosis device is designed to be detachable, with two motors, one large and one small, serving as the drive source. These two motors account for a significant proportion of the cost of the drive module.

[0004] In addition, the dual-motor structure requires the simultaneous coordination of the operation of two motors, which not only makes the hardware connection more complex, but also increases the difficulty in the software part of the drive electronic module. This can easily lead to problems in the safety, stability and reliability of the product. For example, the motor synchronization cannot be precisely controlled, resulting in inaccurate anastomosis operation, affecting the surgical outcome and increasing the surgical risk. Utility Model Content

[0005] The main technical problem solved by this utility model is to provide a single-motor dual-drive structure and an electric anastomosis device. The misalignment separation control is achieved through the back-and-forth movement of two racks and the drive of a single motor. The structure is simple and compact, with high transmission efficiency, and is more reliable and convenient in terms of stability.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing a single-motor dual-drive structure, comprising:

[0007] Motor assembly, including a motor and motor gears driven to rotate by the motor output shaft;

[0008] The drive assembly includes a first drive gear and a second drive gear, which are meshed and connected to both sides of the motor gear. A first rack that moves synchronously is connected to the first drive gear, and a second rack that moves synchronously is connected to the second drive gear.

[0009] The linkage assembly includes a first coupling and a second coupling, wherein the first coupling is connected to the output end of the first drive gear and the second coupling is connected to the output end of the second drive gear.

[0010] The toggle assembly includes a toggle knob and a toggle gear, wherein the first rack and the second rack are respectively disposed on both sides of the toggle gear and mesh with the toggle gear;

[0011] The toggle knob drives the first rack and the second rack to move in opposite directions through the toggle gear, which in turn drives the first drive gear and the second drive gear to move back and forth in opposite directions to achieve misalignment, so that the first coupling and the second coupling are misaligned.

[0012] In a preferred embodiment of the present invention, the first rack and the second rack are arranged parallel to each other, and the teeth on the two racks are arranged facing each other.

[0013] In a preferred embodiment of the present invention, a first guide block is connected to the first rack, and the first drive gear is connected to the first guide block via a pin; a second guide block is connected to the second rack, and the second drive gear is connected to the second guide block via a pin.

[0014] In a preferred embodiment of the present invention, a third coupling and a fourth coupling are further included, wherein the third coupling is adapted to mesh with the first coupling and the fourth coupling is adapted to mesh with the second coupling.

[0015] In a preferred embodiment of the present invention, the device further includes a firing gear set and a firing screw that is drivenly connected to the firing gear set, wherein the third coupling is installed at the input end of the firing gear set.

[0016] In a preferred embodiment of the present invention, a reversing screw is further included, and the fourth coupling is installed at the input end of the reversing screw.

[0017] In a preferred embodiment of the present invention, the actuating gear is mounted on the central shaft of the actuating knob and rotates around the central shaft.

[0018] In a preferred embodiment of this utility model, the toggle knob is provided with anti-slip texture.

[0019] To solve the above-mentioned technical problems, the present invention provides an electric anastomosis device, including a handle housing and the single-motor dual-drive structure, wherein the single-motor dual-drive structure is installed in the inner cavity of the handle housing.

[0020] The beneficial effects of this utility model are: by using a gear to rotate around a fixed axis, it drives two racks meshing with its two sides to move in different directions in a straight line, thereby driving the drive gear on the rack and the coupling to move together, achieving front and rear separation, achieving a single drive effect, with precise and stable action and high transmission efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0022] Figure 1 This is a schematic diagram of a preferred embodiment of the single-motor dual-drive structure of this utility model;

[0023] Figure 2 This is a top view of a preferred embodiment of the single-motor dual-drive structure of this utility model;

[0024] Figure 3 This is a schematic diagram of a preferred embodiment of the electric stapler of this utility model;

[0025] The components in the attached diagram are labeled as follows:

[0026] 1. Turning knob; 2. Turning gear; 3. First drive gear; 4. Second drive gear; 5. Motor; 6. Motor gear; 7. First rack; 8. Second rack; 9. First guide block; 10. Second guide block; 11. First coupling; 12. Second coupling; 13. Third coupling; 14. Fourth coupling; 15. Firing gear set; 16. Firing screw; 17. Reversing screw; 18. Handle housing. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. Example

[0029] Please see Figure 1-2 This embodiment discloses a single-motor dual-drive structure, which is suitable for electric anastomosis devices and can achieve separate switching of dual drives through a single knob.

[0030] The single-motor dual-drive structure includes a motor assembly, a drive assembly, a linkage assembly, and a toggle assembly, wherein the motor assembly includes a motor 5 and a motor gear 6 driven to rotate by the motor output shaft.

[0031] Specifically, the first component is the toggle assembly, which includes a toggle knob 1 and a toggle gear 2. The toggle gear 2 is mounted on the central axis of the toggle knob 1 and rotates around this central axis. Preferably, the toggle knob 1 is provided with anti-slip texture, which enhances the operator's feel when toggleing the knob, making the rotation more stable and easier to control.

[0032] Secondly, there is a drive assembly, which includes a first drive gear 3 and a second drive gear 4. The first drive gear 3 and the second drive gear 4 are respectively meshed and connected to both sides of the motor gear 6. A first rack 7 that moves synchronously is connected to the first drive gear 3, and a second rack 8 that moves synchronously is connected to the second drive gear 4. The first rack 7 and the second rack 8 are arranged parallel to each other, and the teeth on the two racks are arranged facing each other.

[0033] The first rack 7 and the second rack 8 are configured to move linearly as the actuating gear 2 rotates. The first rack 7 and the second rack 8 are arranged on both sides of the actuating gear 2 to ensure that the two racks can move in opposite directions.

[0034] To control the direction of the rack's movement and ensure smooth linear motion, guide blocks are provided on the rack, forming an integral structure with it. Preferably, a first guide block 9 is connected to the first rack 7, and a second guide block 10 is connected to the second rack 8.

[0035] Furthermore, the first drive gear 3 is connected to the first guide block 9 via a pin, and the second drive gear 4 is connected to the second guide block 10 via a pin, enabling the two drive gears to move synchronously in a straight line with their corresponding racks.

[0036] In addition, there is a linkage component, which includes a first coupling 11 and a second coupling 12. The first coupling 11 is connected to the output end of the first drive gear 3, and the second coupling 12 is connected to the output end of the second drive gear 4. The rotary knob 1 drives the first rack 7 and the second rack 8 to move in opposite directions through the rotary gear 2, thereby synchronously driving the first drive gear 3 and the second drive gear 4 to move back and forth in opposite directions to achieve misalignment, so that the first coupling 11 and the second coupling 12 are misaligned.

[0037] The single-motor dual-drive structure in this embodiment also includes a third coupling 13 and a fourth coupling 14. The third coupling 13 is adapted to mesh with the first coupling 11, and the fourth coupling 14 is adapted to mesh with the second coupling 12. The third coupling 13 and the fourth coupling 14 can move synchronously with the movement of the corresponding first coupling 11 and second coupling 12.

[0038] Furthermore, a third coupling 13 is installed at the input end of the firing gear set 15, on which a firing screw 16 is drivenly connected, and a fourth coupling 14 is installed at the input end of the reversing screw 17.

[0039] The operation process of the single-motor dual-drive structure in this embodiment is as follows:

[0040] Initially, the first drive gear 3 and the second drive gear 4 are meshed and connected to both sides of the motor gear 6 and remain in standby mode. The first rack 7 and the second rack 8 are connected to their respective drive gears and are also in standby mode.

[0041] Actuation: The operator rotates the toggle knob 1 clockwise, causing the toggle gear 2 to rotate around the central axis. This rotation drives the first rack 7 and the second rack 8 to move linearly in opposite directions. The linear movement of the racks synchronously drives the corresponding first drive gear 3 and second drive gear 4 to move linearly, achieving a forward-backward misalignment. Simultaneously, the first coupling 11 and the second coupling 12 also shift forward and backward along with the movement of the drive gears.

[0042] When the first coupling 11 moves forward, the first coupling 11 is connected to the third coupling 13. Then the motor 5 drives the motor gear 6 to rotate, the firing gear set 15 is driven, and the firing screw 16 and the working end connected to the firing screw 16 move to achieve firing engagement. At this time, the second coupling 12 and the fourth coupling 13 are misaligned, and the reversing screw 17 rotates freely.

[0043] When the second coupling 12 moves forward, the second coupling 12 is connected to the fourth coupling 14. Then the motor 5 drives the motor gear 6 to rotate, and the reversing screw 17 is driven to move to realize the reversal. At this time, the first coupling 11 and the third coupling 13 are misaligned, and the gear set 15 is idling. Example

[0044] Please see Figure 3 An electric stapler includes a handle housing 18 and a single-motor dual-drive structure, wherein the single-motor dual-drive structure is installed in the inner cavity of the handle housing 18.

[0045] The electric stapler drives the two meshing racks to move in different directions by rotating the fixed axis of the gear 2, thereby realizing the forward and backward movement of the two drive gears and causing the corresponding couplings to be misaligned and separated, achieving a single-drive effect.

[0046] The beneficial effects of this utility model's single-motor dual-drive structure and electric anastomosis device are:

[0047] The single-motor drive ensures precise and stable motion control during firing or reversing actions, thus guaranteeing surgical outcomes.

[0048] By combining the forward and backward movements of two racks with a single motor to drive the misalignment separation control, the accuracy and stability of the action are improved while ensuring a simple and compact structure.

[0049] At the same time, due to the gear and rack transmission, the transmission efficiency of the entire system has also been significantly improved.

[0050] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A single-motor dual-drive structure, characterized in that, include: Motor assembly, including a motor and motor gears driven to rotate by the motor output shaft; The drive assembly includes a first drive gear and a second drive gear, which are meshed and connected to both sides of the motor gear. A first rack that moves synchronously is connected to the first drive gear, and a second rack that moves synchronously is connected to the second drive gear. The linkage assembly includes a first coupling and a second coupling, wherein the first coupling is connected to the output end of the first drive gear and the second coupling is connected to the output end of the second drive gear. The toggle assembly includes a toggle knob and a toggle gear, wherein the first rack and the second rack are respectively disposed on both sides of the toggle gear and mesh with the toggle gear; The toggle knob drives the first rack and the second rack to move in opposite directions through the toggle gear, which in turn drives the first drive gear and the second drive gear to move back and forth in opposite directions to achieve misalignment, so that the first coupling and the second coupling are misaligned.

2. The single-motor dual-drive structure according to claim 1, characterized in that, The first rack and the second rack are arranged parallel to each other, and the teeth on the two racks are arranged facing each other.

3. The single-motor dual-drive structure according to claim 1, characterized in that, A first guide block is connected to the first rack, and the first drive gear is connected to the first guide block via a pin; a second guide block is connected to the second rack, and the second drive gear is connected to the second guide block via a pin.

4. The single-motor dual-drive structure according to claim 1, characterized in that, It also includes a third coupling and a fourth coupling, wherein the third coupling is adapted to mesh with the first coupling and the fourth coupling is adapted to mesh with the second coupling.

5. The single-motor dual-drive structure according to claim 4, characterized in that, It also includes a firing gear set and a firing screw that is driven by the firing gear set, and the third coupling is installed at the input end of the firing gear set.

6. The single-motor dual-drive structure according to claim 4, characterized in that, It also includes a reversing screw, and the fourth coupling is mounted on the input end of the reversing screw.

7. The single-motor dual-drive structure according to claim 1, characterized in that, The actuating gear is mounted on the central axis of the actuating knob and rotates around the central axis.

8. The single-motor dual-drive structure according to claim 1, characterized in that, The toggle knob is provided with anti-slip texture.

9. An electric stapler, characterized in that, It includes a handle housing and a single-motor dual-drive structure as described in any one of claims 1-8, wherein the single-motor dual-drive structure is installed in the inner cavity of the handle housing.

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