Electrocoagulation activation mechanism and surgical instruments

Abstract

This application relates to an electrocoagulation activation mechanism, which is mounted on the handle of a surgical instrument and can connect the forceps head to an external high-frequency energy platform for electrocoagulation treatment of tissue. The electrocoagulation activation mechanism includes a main wrench and an activation structure. The main wrench is rotatably mounted on the upper section of the handle, and the activation structure is fixedly mounted on the lower section of the handle. The main wrench has a trigger portion adapted to face the activation structure and can press the activation structure within the rotational stroke range of the main wrench to activate the circuit. The main wrench of the aforementioned electrocoagulation activation mechanism is rotatably mounted on the upper section of the handle, and the activation structure is mounted on the lower section of the handle, making operation more convenient when triggering the activation button by pressing the main wrench. Furthermore, the method of triggering electrocoagulation activation by pressing the main wrench, compared to traditional triggering methods, reduces the possibility of misoperation during operation and improves operational safety.

Description

Technical Field

[0001] This application relates to the field of surgical instruments, and in particular to an electrocoagulation activation mechanism and a surgical instrument. Background Technology

[0002] Currently, electrosurgical closure and cutting instruments and their end effectors suitable for minimally invasive surgery are instruments that can enter the human body through tiny wounds to cut and coagulate blood vessels and tissues. They are also among the instruments widely used in minimally invasive surgery. They are mainly used for cutting, severing and coagulating tissues in open or endoscopic surgeries in abdominal surgery, gynecology, pediatrics and thoracic surgery.

[0003] Existing electrosurgical closure cutting instruments have complex structures, making it difficult for operators to control the opening and closing of the jaws independently, which is very inconvenient to use. In addition, since electrosurgical closure cutting instruments are operated manually, the forward movement distance of the cutting blade cannot be accurately controlled, which also makes it difficult to accurately control the movement of the jaws of the electrosurgical closure cutting instrument.

[0004] In addition, an existing single-opening device can control the opening and closing of the jaws independently and can control the movement distance of the cutting blade. However, the electrocoagulation activation button of this single-opening device is located above the blade trigger, which requires pressing with the index finger when using it, which is not convenient. At the same time, the blade trigger and the activation button are too close together, which may lead to misoperation. Utility Model Content

[0005] Therefore, it is necessary to provide an electrocoagulation activation mechanism to address the problems of inconvenient use and accidental activation of the activation button in the current electrocoagulation activation mechanism.

[0006] This application provides an electrocoagulation activation mechanism, which is mounted on the handle of a surgical instrument and can connect the forceps head to an external high-frequency energy platform for electrocoagulation treatment of tissue. The electrocoagulation activation mechanism includes a main wrench and an activation structure. The main wrench is rotatably mounted on the upper section of the handle, and the activation structure is fixedly mounted on the lower section of the handle. The main wrench has a trigger part, which is adapted to be disposed toward the activation structure and can press the activation structure within the rotation stroke range of the main wrench to activate the circuit.

[0007] In one embodiment, the main wrench further includes a hinge and a grip, with the trigger located on the side of the grip facing the handle, or the trigger located between the hinge and the grip.

[0008] In one embodiment, the grip portion is shaped like an "n" or a "c".

[0009] In one embodiment, the hinge portion has a hinge hole, and a hinge shaft is adapted to pass through the hinge hole. The hinge shaft is adapted to drive the main wrench to be rotatably mounted on the handle.

[0010] In one embodiment, the activation structure may include a switch button, a button spring, a switch, and a circuit board. The switch is disposed on the circuit board, the switch button is disposed on the switch, the button spring is located between the switch button and the switch, and the button spring has a tendency to push the switch button away from the switch.

[0011] In one embodiment, the switch button includes a base with a protrusion that protrudes from a mounting hole on the handle so as to abut against the main wrench within its rotational travel range.

[0012] In one embodiment, the base is provided with at least one limiting ridge, the limiting ridge being arranged along the axial direction of the base, and the handle is provided with a limiting groove that cooperates with the limiting ridge. The limiting groove and the limiting ridge cooperate to limit the travel of the switch button.

[0013] In one embodiment, the electrocoagulation activation mechanism further includes a prompting unit adapted to issue a prompting message when the circuit is activated. The prompting unit includes a spring piece installed inside the handle, with a portion of the spring piece facing the main wrench. When the main wrench presses the activation structure and activates the circuit, the main wrench simultaneously moves the spring piece to issue a prompting message.

[0014] In one embodiment, the triggering part includes a first triggering part and a second triggering part, the first triggering part being adapted to press the activation structure to activate the circuit, and the second triggering part being adapted to flick the spring to cause the spring to emit a prompting message while activating the circuit.

[0015] In one embodiment, the second trigger portion may be configured as a protruding structure, the protruding structure being positioned toward the mounting direction of the spring piece.

[0016] A second aspect of the present invention provides a surgical instrument in which the electrocoagulation activation mechanism described above is employed.

[0017] The aforementioned electrocoagulation activation mechanism is mounted on the handle of the surgical instrument and, upon activation by pressing, connects the forceps head to an external high-frequency energy platform to initiate electrocoagulation treatment of the tissue. Furthermore, this electrocoagulation activation mechanism includes a main wrench and an activation structure. The main wrench is rotatably mounted on the upper section of the handle, while the activation structure is mounted on the lower section of the handle, either at the handle's grip or closer to the bottom. This facilitates easier operation by pressing the activation button via the main wrench, unlike traditional activation methods that require pressing the activation structure located above the blade trigger with the index finger, which is inconvenient. Additionally, the main wrench-based activation method reduces the possibility of misoperation during operation and improves operational safety compared to traditional methods. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the main wrench and activation button of the electrocoagulation activation mechanism in one embodiment of this application;

[0019] Figure 2 An exploded view of the main wrench and activation button of the electrocoagulation activation mechanism in one embodiment of this application;

[0020] Figure 3 This is a cross-sectional view of the electrocoagulation activation mechanism in one embodiment of this application after it has been mounted on the handle.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Handle;

[0023] 2. Main wrench; 21. Triggering part; 211. First triggering part; 212. Second triggering part; 22. Hinge part; 221. Hinge hole; 222. Hinge shaft; 23. Grip part;

[0024] 3. Activation structure; 31. Switch button; 311. Base; 312. Protrusion; 32. Button spring; 33. Switch; 34. Circuit board;

[0025] 4. Prompt unit; 41. Spring clip; 42. Mounting rib. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0028] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] This application provides an electrocoagulation activation mechanism, which is mounted on the handle 1 of a surgical instrument. This surgical instrument is an electrode for a high-frequency energy platform and can be used for tissue cutting, closure, etc. The electrocoagulation activation structure 3 in this application is used to connect the circuit between the forceps of the surgical instrument and an external high-frequency energy platform for electrocoagulation treatment of tissue.

[0030] Currently, because the electrocoagulation activation button is located above the blade trigger, it requires pressing with the index finger, making operation inconvenient. Furthermore, the considerable distance between the blade trigger and the activation button may lead to accidental operation.

[0031] See Figure 1 The electrocoagulation activation mechanism includes a main wrench 2 and an activation structure 3. The main wrench 2 is rotatably mounted on the upper section of the handle 1, and the activation structure 3 is fixedly mounted on the lower section of the handle 1. The activation button is triggered by pressing the main wrench 2 to complete the electrocoagulation, making the operation more convenient and less prone to misoperation, and thus safer.

[0032] Specifically, the main wrench 2 is rotatably mounted on the upper section of the handle 1, and the activation structure 3 is fixedly mounted on the lower section of the handle 1. The main wrench 2 has a trigger part 21, which is located on the handle 1 and is adapted to face the side facing the activation structure 3. This allows the activation structure 3 to be pressed within the rotation stroke range of the main wrench 2 to activate the circuit. That is, when the main wrench 2 rotates, it can drive the trigger part 21 to rotate synchronously. When the main wrench 2 rotates a certain angle towards the activation structure 3, the trigger part 21 rotates synchronously with the main wrench 2 until it contacts the activation structure 3. At this time, the trigger part 21 continues to rotate with the main wrench 2 towards the activation structure 3, thereby pressing the activation structure 3, which is then triggered by the trigger part 21 to activate the circuit. Thus, by installing the electrocoagulation activation mechanism on the handle 1 of the surgical instrument, the main wrench 2 included therein is rotatably installed on the upper section of the handle 1, and the activation structure 3 is installed on the lower section of the handle 1. The activation structure 3 is triggered by the trigger part 21 of the main wrench 2. The trigger part 21 is positioned on the side facing the activation structure 3, and the trigger part 21 can press the activation structure 3 within the rotation stroke range of the main wrench 2 to activate the circuit, thereby connecting the circuit between the forceps head of the surgical instrument and the external high-frequency energy platform for electrocoagulation treatment of the tissue.

[0033] See Figure 3 The main wrench 2 also includes a hinge portion 22 and a grip portion 23. Furthermore, a trigger portion 21 is disposed between the hinge portion 22 and the grip portion 23, and the trigger portion 21 is located on the side of the grip portion 23 that moves toward the handle 1, so as to facilitate the trigger portion 21 to work in conjunction with the activation mechanism.

[0034] Specifically, the gripping part 23 is configured as an n-shaped or c-shaped structure. Therefore, by designing the structure of the gripping part 23, the operator can more easily and comfortably grip the surgical instrument during operation, thereby increasing the gripping time during actual operation and reducing discomfort caused by prolonged gripping.

[0035] More specifically, a hinge hole 221 is provided on the hinge portion 22, and a hinge shaft 222 is adapted to pass through the hinge hole 221. The hinge shaft 222 can cooperate with the hinge hole 221 to rotatably mount the main wrench 2 onto the handle 1. Preferably, the hinge hole 221 is provided at the end of the hinge portion 22 away from the activation structure 3. Therefore, after the main wrench 2 is mounted on the handle 1 via the hinge shaft 222, the main wrench 2 has a larger range of rotation with the hinge shaft 222 as the rotation base point, thus adapting to the gripping needs of different operators.

[0036] See Figure 2The activation structure 3 may include a switch button 31, a button spring 32, a switch 33, and a circuit board 34. The switch 33 is mounted on the circuit board 34, the switch button 31 is mounted on the switch 33, and the button spring 32 is located between the switch button 31 and the switch 33. The button spring 32 has a tendency to push the switch button 31 away from the switch 33. The switch button 31 includes a base 311 with a protrusion 312. A mounting hole is provided on the handle 1 corresponding to the protrusion 312. The protrusion 312 is adapted to protrude from the mounting hole and can abut against its trigger part 21 within the rotational stroke range of the main wrench 2, so that the trigger part 21 can press against the protrusion 312. After the protrusion 312 is subjected to the force applied by the trigger part 21, it can move along its axial direction. Therefore, the protrusion 312 can retract into the base 311 under the action of the trigger part 21. During the retraction process, it compresses the button spring 32, causing the button spring 32 to contract and simultaneously pressing the switch 33 towards the circuit board 34 until the switch 33 is connected to the circuit board 34 and the circuit is activated. When the trigger part 21 no longer applies force to the protrusion 312, the switch 33 resets under the action of the button spring 32. At the same time, the protrusion 312 is subjected to the force generated by the button spring 32 when it resets, which forces the protrusion 312 to protrude out of the mounting hole of the handle 1 again and return to its initial state.

[0037] In addition, the base 311 is provided with at least one limiting ridge, which is arranged along the axial direction of the base 311. The handle 1 is provided with a limiting groove that cooperates with the limiting ridge. The limiting groove and the limiting ridge cooperate with each other to limit the movement stroke of the switch button 31.

[0038] Specifically, the button spring 32 can be configured as a compression spring or a torsion spring. One end of the button spring 32 engages with the base 311, and the other end can engage with the switch 33 or the circuit board 34. When the activation structure 3 is assembled, the switch 33 is roughly columnar in shape, the button spring 32 is sleeved on the switch 33, and the switch button 31 is located on the switch 33. The switch 33 is triggerably connected to the circuit board 34. When the switch button 31 is pressed, the switch button 31 squeezes the switch 33 and forces the button spring 32 to contract. The squeezed switch 33 contacts the circuit board 34 and connects to activate the circuit, thereby connecting the circuit between the forceps head and the external high-frequency energy platform for electrocoagulation treatment of the tissue.

[0039] See Figure 3The electrocoagulation activation mechanism also includes a prompting unit 4, which emits prompting information, including sound, light, and vibration, to indicate to the user that the circuit is connected. The prompting unit 4 includes a spring 41, which emits sound and vibration to alert the operator when the circuit is activated. The spring 41 can be installed in various ways, such as by mounting it inside the handle 1. At least two mounting ribs 42 are horizontally spaced inside the handle 1, and the spring 41 can be inserted into one of these ribs, with a portion of the spring 41 facing the main wrench 2. When in use, the operator pulls the main wrench 2, so that when the trigger part 21 of the main wrench 2 presses the activation structure 3, the part of the trigger part 21 of the main wrench 2 that is close to the spring 41 will simultaneously flick the spring 41, so that when the activation structure 3 is activated, the spring 41 can be flicked at the same time and issue a prompt message, thereby achieving the effect of prompting the operator to activate the circuit.

[0040] Specifically, the trigger unit 21 includes a first trigger unit 211 and a second trigger unit 212. The first trigger unit 211 is disposed corresponding to the activation structure 3, and the second trigger unit 212 is disposed corresponding to the spring 41. Both the first trigger unit 211 and the second trigger unit 212 are disposed on the motherboard and are disposed facing the activation structure 3. Thus, when the main wrench 2 is rotated toward the activation structure 3, the first trigger unit 211 presses the activation structure 3 and activates the circuit, while the second trigger unit 212 can simultaneously move the spring 41, causing the spring 41 to produce a prompting sound and vibration. In addition, in order to facilitate easy movement of the spring 41, the second trigger unit 211 can be configured as a protruding structure, so that the second trigger unit 211 can more easily move the spring 41.

[0041] This embodiment also provides a surgical instrument that employs the aforementioned electrocoagulation activation mechanism. Upon activation by pressing, it connects the forceps head to an external high-frequency energy platform to initiate electrocoagulation treatment of the tissue. The electrocoagulation assembly includes a main wrench 2 and an activation structure 3. The main wrench 2 is rotatably mounted on the upper section of the surgical instrument's handle 1, while the activation structure 3 is mounted on the lower section of the handle 1, either at the handle or closer to the bottom of the handle 1. This facilitates easier operation when triggering the activation button by pressing the main wrench 2, unlike traditional activation methods which require pressing the activation structure 3 above the blade trigger with the index finger, which is inconvenient. Furthermore, the activation method of pressing the main wrench 2 reduces the possibility of misoperation during operation and improves the safety of the operator when using the surgical instrument.

[0042] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An electrocoagulation activation mechanism mounted on a handle of a surgical instrument and capable of switching on an electric circuit between a jaw and an external high-frequency energy platform to perform electrocoagulation treatment on tissue, characterized in that, The electrocoagulation activation mechanism includes a main wrench and an activation structure. The main wrench is rotatably mounted on the upper section of the handle, and the activation structure is fixedly mounted on the lower section of the handle. The main wrench has a trigger part, which is adapted to be positioned toward the activation structure and can press the activation structure within the rotation stroke range of the main wrench to activate the circuit.

2. The electrocoagulation activation mechanism of claim 1, wherein, The main wrench also includes a hinge and a grip, with the trigger located on the side of the grip facing the handle, or the trigger located between the hinge and the grip.

3. The electrocoagulation activation mechanism according to claim 2, characterized in that, The gripping part is shaped like an "n" or a "c".

4. The electrocoagulation activation mechanism according to claim 2, characterized in that, The hinge part has a hinge hole, and a hinge shaft is adapted to pass through the hinge hole. The hinge shaft is adapted to drive the main wrench to be rotatably mounted on the handle.

5. The electrocoagulation activation mechanism according to claim 1, characterized in that, The activation structure may include a switch button, a button spring, a switch, and a circuit board. The switch is disposed on the circuit board, the switch button is disposed on the switch, the button spring is located between the switch button and the switch, and the button spring has a tendency to push the switch button away from the switch.

6. The electrocoagulation activation mechanism according to claim 5, characterized in that, The switch button includes a base with a protrusion that protrudes from the mounting hole on the handle so as to abut against the main wrench within its rotational stroke range.

7. The electrocoagulation activation mechanism according to claim 6, characterized in that, The base is provided with at least one limiting ridge, which is arranged along the axial direction of the base. The handle is provided with a limiting groove that cooperates with the limiting ridge. The limiting groove cooperates with the limiting ridge to limit the travel of the switch button.

8. The electrocoagulation activation mechanism according to claim 1, characterized in that, The electrocoagulation activation mechanism further includes a prompting unit adapted to issue a prompting message when activating the circuit. The prompting unit includes a spring piece installed inside the handle, with a portion of the spring piece facing the main wrench. When the main wrench presses the activation structure and activates the circuit, the main wrench simultaneously moves the spring piece to issue a prompting message.

9. The electrocoagulation activation mechanism according to claim 8, characterized in that, The triggering part includes a first triggering part and a second triggering part. The first triggering part is adapted to press the activation structure to activate the circuit, and the second triggering part is adapted to flick the spring to make the spring emit a prompt message while activating the circuit.

10. A surgical instrument, characterized in that, The electrocoagulation activation mechanism described in any one of claims 1 to 9 is employed.

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