Electric anastomat rotation control device and electric anastomat

Abstract

The utility model relates to the field of electric anastomats, in particular to an electric anastomat rotation control device and an electric anastomat. The rotation control device comprises a first conducting strip, a second conducting strip, a movable conducting piece and two matching parts, and the first conducting strip and the second conducting strip are fixedly installed on the gun body part and electrically connected with the power mechanism; the fixed end part of the movable conductive piece is electrically connected with the first conductive piece, and the non-electric contact between the movable end part and the second conductive piece is a normal state; the two matching parts are arranged in the circumferential direction of the rotating handle, and the movable conductive piece is located between the two matching parts; and each matching part is configured to force the movable end part to be electrically contacted with the second conducting strip to trigger the power mechanism to reverse when rotating along with the rotating handle to be contacted with the movable conducting piece. According to the utility model, the power mechanism of the electric anastomat can be controlled to drive the handle and the nail bin assembly connected with the handle to rotate back and forth within a preset range, so that an operator can conveniently grasp and find an optimal operation angle.

Description

Technical Field

[0001] This utility model relates to the field of electric staplers, specifically to an electric stapler rotation control device and an electric stapler. Background Technology

[0002] Electric staplers are widely used in various minimally invasive surgeries. They include the gun body, rotating handle, and barrel assembly. The barrel assembly includes a cutting blade for cutting and a staple cartridge assembly for anastomosis. The rotating handle is rotatably mounted on the gun body and can rotate under the drive of a power mechanism. The barrel assembly is connected to the rotating handle, so that it can be rotated to a suitable operating angle under the drive of the rotating handle.

[0003] However, once activated, the power mechanism of this type of structure can only drive the rotary handle to rotate continuously in one direction without any obvious "marking." The operator cannot quickly pinpoint the current angle or determine if it is the desired angle, sometimes requiring repeated searching, which affects surgical efficiency and increases surgical risks. Furthermore, if the desired angle is missed, it requires rotating half a turn or a full turn to reach the desired angle again, resulting in a long waiting time. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide an electric stapler rotation control device, which can control the power mechanism of the electric stapler to drive the handle and the staple cartridge assembly connected to the handle to reciprocate within a preset range, thereby making it easier for the operator to grasp and find the best operating angle.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: an electric stapler rotation control device, wherein the electric stapler includes a rotating handle, a gun body, a barrel assembly, and a power mechanism, the power mechanism being disposed between the gun body and the rotating handle to drive the rotating handle to rotate, and the barrel assembly being connected to the rotating handle to rotate with the rotating handle; the electric stapler rotation control device includes:

[0006] The first conductive sheet and the second conductive sheet are respectively fixedly installed on the gun body and are respectively electrically connected to the power mechanism;

[0007] The movable conductive component has its fixed end electrically connected to the first conductive sheet, and its movable end normally in non-electrical contact with the second conductive sheet.

[0008] Two mating parts are disposed around the circumference of the rotary handle, and the movable conductive element is located between the two mating parts; wherein,

[0009] Each mating part is configured to force the movable end into electrical contact with the second conductive sheet when rotated with the rotary handle to contact the movable conductive element, thereby triggering the reversing of the power mechanism.

[0010] Furthermore, in order to prevent the mating parts from encroaching on the inner cavity space of the rotary handle, the inner peripheral wall of the rotary handle is provided with a receiving groove, and the movable conductive element is located in the receiving groove, with the two end walls of the receiving groove serving as two mating parts.

[0011] Furthermore, in order to limit the position of the movable conductive element in the axial direction of the rotating handle, the movable conductive element is an elastic conductive sheet that arches towards the receiving groove.

[0012] Furthermore, to reduce assembly difficulty, the elastic conductive sheet is integrally formed with the first conductive sheet.

[0013] Furthermore, the receiving groove is located at the position where the rotating handle is rotatably connected to the gun body, and the gun body is provided with a clearance groove, through which the elastic conductive sheet is embedded in the receiving groove.

[0014] To further improve the reliability of electrical contact, the movable end of the movable conductive member has a bent portion, and the movable end achieves surface contact with the second conductive sheet through the bent portion when it contacts the second conductive sheet.

[0015] Furthermore, to improve strength and the timeliness of reversing triggering, the tail end of the bend is curved toward the rotating handle side to form an upward curve.

[0016] This utility model also relates to an electric stapler, including an electric stapler rotation control device.

[0017] By adopting the above technical solution, this utility model can control the reversal of the power mechanism to restrict the rotation of the rotating handle and the barrel assembly (staple cartridge assembly, cutter, and other components) connected to it within a preset range. This allows for reciprocating rotation only within the preset range, which is the circumferential interval defined by the two mating parts. Using "reversal" as a reference or marker, the operator can easily identify the angle of the barrel assembly (staple cartridge assembly, cutter, and other components) that rotates synchronously with the rotating handle. Furthermore, compared to the original method of only being able to rotate in a single direction, even if the desired angle is missed, it can be quickly rotated back to the required angle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the electric stapler of this utility model;

[0019] Figure 2 for Figure 1 AA section view;

[0020] Figure 3 This is a structural diagram showing the assembly of the first conductive sheet, the second conductive sheet, and the movable conductive component of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the electric stapler rotation control device of this utility model installed in the electric stapler;

[0022] Figure 5 This is a schematic diagram of half of the rotating handle of the electric stapler of this utility model;

[0023] In the figure, 1 is the rotating handle; 11 is the receiving groove; 2 is the gun body; 21 is the clearance groove; 3 is the power mechanism; 4 is the first conductive plate; 5 is the second conductive plate; 6 is the movable conductive part; 61 is the fixed end; 62 is the movable end; 621 is the upturned part; and 7 is the mating part. Detailed Implementation

[0024] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0025] like Figures 1 to 5 As shown, an electric stapler rotation control device is disclosed. The electric stapler includes a rotating handle 1, a gun body 2, a barrel assembly, and a power mechanism 3. The power mechanism 3 is disposed between the gun body 2 and the rotating handle 1 to drive the rotating handle 1 to rotate. The barrel assembly is connected to the rotating handle 1 to rotate with the rotating handle 1. The electric stapler rotation control device includes:

[0026] The first conductive sheet 4 and the second conductive sheet 5 are respectively fixedly installed on the gun body 2 and electrically connected to the power mechanism 3.

[0027] The movable conductive element 6 has a fixed end 61 that is electrically connected to the first conductive sheet 4, and its movable end 62 is normally in non-electrical contact with the second conductive sheet 5.

[0028] Two mating parts 7 are arranged around the circumference of the rotating handle 1, and the movable conductive element 6 is located between the two mating parts 7; wherein,

[0029] Each mating part 7 is configured to force the movable end 62 into electrical contact with the second conductive piece 5 when the rotating handle 1 is rotated to contact the movable conductive member 6, thereby triggering the reversing of the power mechanism 3.

[0030] Specifically, during the process of the power mechanism 3 driving the rotary handle 1 to rotate, the rotary handle 1 drives the barrel assembly (spike cartridge assembly, cutter, and other components) connected to it to rotate. When the rotary handle 2 is driven to rotate in the positive direction until one mating part 7 contacts the movable conductive part 6, the mating part 7 forces the movable end 62 to make electrical contact with the second conductive plate 5, thereby triggering the power mechanism 3 to switch direction. The power mechanism 3 then drives the rotary handle 2 to rotate in the opposite direction. During the process of rotating in the opposite direction until another mating part 7 contacts the movable conductive part 6, the mating part 7 again forces the movable end 62 to make electrical contact with the second conductive plate 5. The moving end 62 makes electrical contact with the second conductive plate 5, thereby triggering the power mechanism 3 to reverse direction. The power mechanism 3 then drives the rotating handle 2 to rotate in the positive direction... In this way, the rotation of the rotating handle 1 and the barrel assembly (staple cartridge assembly, cutter, and other components) connected to it can be restricted within a preset range, allowing only reciprocating rotation within this preset range. The range of rotation is the circumferential interval defined by the two mating parts 7. Using "reversal" as a reference or marker, the operator can easily identify the angle of the barrel assembly (staple cartridge assembly, cutter, and other components) that rotates synchronously with the rotating handle 1. Furthermore, compared to the original situation where only unidirectional rotation was possible, even if the required angle is missed, it can be quickly rotated back to the required angle. In addition, under normal circumstances, the central angle of the circumferential portion of the rotating handle 1 located between the two mating parts 7 can be 90°, 135°, 180°, etc., preferably 180°, so that the required angle can be met within each rotation stroke.

[0031] In this circuit, the first conductive sheet 4, the second conductive sheet 5, and the movable conductive element 6 together form the reversing switch of the power mechanism 3. This reversing switch can be directly connected in series in the reversing circuit of the power mechanism 3. The movable end 62 of the movable conductive element 6 is electrically connected to the second conductive sheet 5; that is, when the reversing switch is closed, the power mechanism 3 drives the rotary handle 1 to switch the rotation direction. This reversing switch can also serve as a trigger switch for a controller or control chip. The movable end 62 of the movable conductive element 6 is electrically connected to the second conductive sheet 5; that is, when the reversing switch is closed, a trigger signal is given to the controller or control chip, which then controls the power mechanism 3 to drive the rotary handle 1 to reverse direction.

[0032] In this embodiment, the power mechanism is existing technology and may include a motor, a power gear and a gear ring. The motor is installed inside the gun body 2 and connected to the power gear to drive the power gear to rotate. The gear ring is installed on the inner circumferential wall of the rotating handle 1, and the teeth on the inner circumference of the gear ring mesh with the power gear.

[0033] In one embodiment, such as Figure 2 and Figure 5As shown, the inner peripheral wall of the rotating handle 1 is provided with a receiving groove 11, and the movable conductive part 6 is located in the receiving groove 11, with the two end walls of the receiving groove 11 serving as two mating parts 7.

[0034] In this way, the entire mating part 7 is set inside the peripheral wall of the rotating handle 1, avoiding the mating part 7 from encroaching on the space inside the rotating handle 1 due to extending beyond the inner wall of the rotating handle 1. This makes it convenient to improve the original electric stapler without having to redesign the layout inside the rotating handle 1.

[0035] In addition, such as Figure 1 and Figure 5 As shown, in order to allow the two end walls (fitting parts 7) of the receiving groove 11 to act slowly and gradually on the movable conductive part 6, both end walls of the receiving groove 11 have a slope, that is, the bottom of the receiving groove 11 and the non-receiving groove part of the rotating handle 1 transition smoothly.

[0036] In one embodiment, such as Figure 2 , Figure 3 and Figure 4 As shown, the movable conductive element 6 is an elastic conductive sheet, and it arches towards the receiving groove 11.

[0037] In this way, the position of the movable conductive element 6 in the axial direction of the rotating handle 1 can be limited by the receiving groove 11, preventing the movable guide element 6 from being unable to cooperate with the second conductive piece 5 due to displacement, thereby improving the reliability of use.

[0038] In one embodiment, such as Figure 2 He Ru Figure 3 As shown, the elastic conductive sheet and the first conductive sheet 4 are integrally formed.

[0039] This reduces assembly difficulty and avoids situations where connections are not secure, misaligned, or disconnected due to later assembly.

[0040] In one embodiment, such as Figure 2 and Figure 4 As shown, the receiving groove 11 is located at the position where the rotating handle 1 is rotatably connected to the gun body 2. The gun body 2 is provided with a relief groove 21, and the elastic conductive sheet passes through the relief groove 21 and is embedded in the receiving groove 11.

[0041] This setup can further reduce the amount of modification required to the original electric stapler.

[0042] In one embodiment, such as Figure 2 and Figure 3 As shown, the movable end 62 of the movable conductive member 6 has a bent portion, and the movable end makes surface contact with the second conductive sheet 5 through the bent portion when it comes into contact with the second conductive sheet 5.

[0043] This ensures good contact between the active end 62 and the second conductive sheet 5, thereby avoiding poor contact and improving the reliability of commutation triggering.

[0044] The tail end of the bent part can also be bent toward the rotating handle 1 to form an upturned part 621.

[0045] In this way, on the one hand, the strength of the movable end 62 can be improved to avoid irreversible deformation. On the other hand, the mating part 7 can directly act on the upturned part 621, forcing the movable end 62 to contact the second conductive sheet 5. Compared with the part of the movable end 62 located inside the bending part, the timeliness of the reversal trigger is improved.

[0046] like Figure 1 , Figure 2 and Figure 4 As shown, an electric stapler includes the electric stapler rotation control device in any of the above embodiments.

[0047] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A rotating control device for an electric stapler, the electric stapler comprising a rotating handle (1), a gun body (2), a barrel assembly, and a power mechanism (3), wherein the power mechanism (3) is disposed between the gun body (2) and the rotating handle (1) to drive the rotating handle (1) to rotate, and the barrel assembly is connected to the rotating handle (1) to rotate with the rotating handle (1), characterized in that, The rotation control device for the electric stapler includes: The first conductive sheet (4) and the second conductive sheet (5) are respectively fixedly installed on the gun body (2) and electrically connected to the power mechanism (3); The movable conductive element (6) has its fixed end (61) electrically connected to the first conductive sheet (4), and its movable end (62) is normally in non-electrical contact with the second conductive sheet (5). Two mating parts (7) are disposed around the circumference of the rotating handle (1), and the movable conductive element (6) is located between the two mating parts (7); wherein, Each mating part (7) is configured to force the movable end (62) into electrical contact with the second conductive piece (5) when the rotating handle (1) is rotated to contact the movable conductive member (6) to trigger the reversing of the power mechanism (3).

2. The electric stapler rotation control device according to claim 1, characterized in that, The inner peripheral wall of the rotary handle (1) is provided with a receiving groove (11), and the movable conductive component (6) is located in the receiving groove (11), with the two end walls of the receiving groove (11) serving as two mating parts (7).

3. The electric stapler rotation control device according to claim 2, characterized in that, The movable conductive element (6) is an elastic conductive sheet and arches towards the receiving groove (11).

4. The electric stapler rotation control device according to claim 3, characterized in that, The elastic conductive sheet is integrally formed with the first conductive sheet (4).

5. The electric stapler rotation control device according to claim 3, characterized in that, The receiving groove (11) is located at the position where the rotating handle (1) is rotatably connected to the gun body (2). The gun body (2) is provided with a relief groove (21). The elastic conductive sheet passes through the relief groove (21) and is embedded in the receiving groove (11).

6. The electric stapler rotation control device according to claim 1, characterized in that, The movable end (62) of the movable conductive element (6) has a bent portion, and the movable end (62) makes surface contact with the second conductive sheet (5) through the bent portion when it contacts the second conductive sheet (5).

7. The electric stapler rotation control device according to claim 6, characterized in that, The tail end of the bend curves toward the rotating handle (1) to form an upturned portion (621).

8. An electric stapler characterized in that, Includes the electric stapler rotation control device as described in any one of claims 1-7.

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