Clamp head control structure and bipolar coagulation clamp

Abstract

The utility model discloses a forceps head control structure and bipolar coagulation forceps, and belongs to the technical field of high-frequency surgical instruments. The forceps head control structure comprises a support, a forceps rod driving mechanism and an activation button, the forceps rod driving mechanism comprises a trigger piece, the trigger piece comprises a first operation portion, a second operation portion and a connecting portion which are roughly arranged in a Y shape, and the forceps rod driving mechanism of the forceps head control structure is rotatably connected to the support through the connecting portion. The first operating part and the second operating part are arranged at the lower end of the connecting part, the upper end of the connecting part is in transmission connection with a forceps rod of the bipolar coagulation forceps, and the forceps rod is used for driving the forceps head to be opened and closed, so that the forceps head control structure can control the forceps head more conveniently and reliably. The second operation part is provided with a containing groove, and the activation button is connected to the containing groove in a sealed mode, so that according to the forceps head control structure, the activation button can be conveniently operated, the convenience and reliability of operation of the bipolar coagulation forceps are improved, and due to the fact that the activation button is connected in a sealed mode, when the bipolar coagulation forceps are cleaned, disinfected and sterilized, the bipolar coagulation forceps can be cleaned, disinfected and sterilized, and the service life of the bipolar coagulation forceps is prolonged. And liquid such as cleaning liquid is not easy to enter the activation button, so that electronic elements in the activation button are prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of electrosurgical instruments, and more specifically, to a forceps head control structure and a bipolar electrocoagulation forceps. Background Technology

[0002] Bipolar electrocoagulation forceps are a commonly used hemostatic tool. The front of the bipolar electrocoagulation forceps has two forceps heads, which are connected to a power source. When in use, the forceps are operated so that the two forceps heads come into contact with the wound. Under the action of high-frequency current, local high temperature is generated at the wound site, which heats the bleeding tissue, coagulates the protein, and reduces or closes the lumen of the blood vessel, thereby achieving the hemostatic effect.

[0003] In related fields, bipolar electrocautery forceps are typically single-use medical devices. However, with the development of equipment and processes for cleaning, disinfecting, and sterilizing medical devices, bipolar electrocautery forceps can now be reused after cleaning, disinfection, and sterilization.

[0004] In common bipolar cautery forceps, the control structure of the forceps head, especially the electronic components controlling the power supply to the forceps head, is usually housed inside the casing. Since the environments in which they are used do not have high waterproofing requirements, a waterproof structure is sufficient to prevent leakage and damage simply by placing a suitable waterproofing structure on the casing. However, for reusable bipolar cautery forceps, the entire instrument needs to be disassembled into multiple modules for cleaning, disinfection, and sterilization, and the waterproofing requirements for its electronic components are much higher. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology in which the electronic components used to control the power supply of the pliers head have low waterproof performance, and to provide a pliers head control structure and a bipolar electrocoagulation pliers.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] This utility model discloses a clamp head control structure, including a bracket, a clamp bar drive mechanism, and an activation button. The clamp bar drive mechanism includes a trigger component, which comprises a first operating part, a second operating part, and a connecting part arranged in a generally Y-shape. The clamp bar drive mechanism is rotatably connected to the bracket through the connecting part. The first and second operating parts are located at the lower end of the connecting part, and the upper end of the connecting part is connected to the clamp bar of a bipolar electrocautery clamp. The clamp bar is used to drive the clamp head to open and close. The second operating part is provided with a receiving groove, and the activation button is sealed and connected to the receiving groove.

[0008] Furthermore, the activation button includes a pressing element and an electronic switch. The electronic switch is disposed in the receiving groove. The pressing element is sealed to the second operating part, and after the pressing element is connected to the second operating part, it can completely cover the receiving groove. When the pressing element is pressed, it can deform and trigger the electronic switch.

[0009] Furthermore, the pressing member includes a pressing part and a connecting part, the connecting part is glued to the receiving groove, and the pressing part protrudes from the surface of the second operating part.

[0010] Furthermore, the trigger component has a hollow structure, and the upper end of the connecting part has a connecting hole that communicates with the receiving groove, allowing the wire used to electrically connect the electronic switch to the high-frequency electrosurgical energy platform to enter the interior of the trigger component through the connecting hole.

[0011] Furthermore, a hinge shaft is provided on each side of the connecting part, and the bracket includes a first side plate and a second side plate, with the two connecting shafts rotatably connected to the first side plate and the second side plate respectively.

[0012] Furthermore, at least one of the two hinge shafts is provided with a reset member, one end of which cooperates with the trigger member, and the other end of which cooperates with the bracket.

[0013] Furthermore, a driving part is connected to the upper end of the connecting part, and the connecting part is connected to the clamp rod through the driving part.

[0014] Furthermore, the driving part has a generally U-shaped mating groove, and a driving groove is formed on the groove wall of the mating groove. At least part of the clamp rod is accommodated in the mating groove, and a driven member that mates with the driving groove is provided on the clamp rod.

[0015] Furthermore, the clamp bar and the bracket are slidably connected, the opening direction of the drive groove intersects the axial direction of the clamp bar, and at least part of the driven member is located in the drive groove.

[0016] This utility model discloses a bipolar electrocautery clamp, comprising a housing assembly, a lever assembly, an actuator assembly, and a drive assembly. The drive assembly includes a bracket, a lever drive mechanism, and a clamp head control structure disposed on the bracket. The proximal end of the lever assembly is located in the housing assembly and at least partially inserted into the bracket. The lever drive mechanism is kinetically connected to the proximal end of the lever lever of the lever assembly, and the clamp head control structure is kinetically connected to the proximal end of the lever lever of the lever assembly. The clamp head control structure is the aforementioned clamp head control structure.

[0017] The clamp head control structure of this utility model has a clamp bar drive mechanism rotatably connected to a bracket via a connecting part. A first operating part and a second operating part are located at the lower end of the connecting part, and the upper end of the connecting part is connected to the clamp bar of the bipolar electrocautery clamp. The clamp bar is used to drive the clamp head to open and close, making the clamp head control structure of this utility model more convenient and reliable in controlling the clamp head. The second operating part is provided with a receiving groove, and the activation button is sealed and connected to the receiving groove. Therefore, the clamp head control structure of this utility model can operate the activation button more conveniently, improving the convenience and reliability of bipolar electrocautery clamp operation. Moreover, since the activation button is sealed and connected, when cleaning, disinfecting, and sterilizing the bipolar electrocautery clamp, cleaning fluid and other liquids are not easy to enter the activation button, preventing damage to the electronic components inside the activation button. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the bipolar electrocoagulation clamp structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the drive component in this utility model;

[0020] Figure 3 This is a schematic diagram of the clamp control structure in this utility model;

[0021] Figure 4 for Figure 3 Enlarged diagram of section A in the middle;

[0022] Figure 5 This is a schematic diagram of the structure of the rod assembly and actuator assembly of this utility model;

[0023] Figure 6 This is a schematic diagram of the clamp rod in this utility model;

[0024] Figure 7 This is a schematic diagram of the activation button in this utility model.

[0025] Explanation of the labels in the schematic diagram: 1. Housing assembly; 2. Rod assembly; 21. Clamping bar; 211. Clamping bar guide shaft; 212. Actuating groove; 213. Mounting part; 22. Cutting mechanism; 221. Blade bar; 23. Outer rod; 231. Outer rod base; 232. Positioning groove; 3. Actuator assembly; 31. First clamping head; 32. Second clamping head; 33. Connecting pin; 34. Drive pin; 4. Drive assembly; 41. Bracket; 411 411. First side plate; 412. Second side plate; 413. First connecting plate; 414. Connecting seat; 415. Second connecting plate; 42. Clamping bar drive mechanism; 421. First operating part; 422. Second operating part; 423. Hinge shaft; 424. Reset part; 425. Drive part; 426. Drive groove; 427. Connecting hole; 428. Receiving groove; 429. Connecting part; 43. Activation button; 44. Tool bar drive mechanism. Detailed Implementation

[0026] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0027] Reference Figure 1 This embodiment provides a bipolar electrocautery clamp, which includes a housing assembly 1, a lever assembly 2, an actuator assembly 3, and a control assembly 4. The control assembly 4 is located within the housing assembly 1. At least a portion of the lever assembly 2 is located within the housing assembly 1. The actuator assembly 3 is located at the distal end of the lever assembly 2, i.e., the end of the lever assembly 2 furthest from the housing assembly 1. The actuator assembly 3 includes two clamps consisting of two jaws that can move closer together or further apart. The portion of the lever assembly 2 located within the housing assembly 1 cooperates with the control assembly 4 to enable a transmission engagement between the clamps and the control assembly 4.

[0028] Reference Figure 5 and Figure 6 The lever assembly 2 includes an outer lever 23, a clamp lever 21, and a cutting mechanism 22. The clamp lever 21 is sleeved on the cutting mechanism 22, and the outer lever 23 is sleeved on the clamp lever 21. A clamp lever guide shaft 211 is provided at the proximal end of the clamp lever 211. The clamp lever guide shaft 211 has a moving groove 212 and a mounting part 213. The moving groove 212 is used for transmission connection with the clamp head control structure 42. The cutting mechanism 22 includes a blade 221 and a cutting blade located at the distal end of the blade 221. The cutting mechanism 22 can be inserted into the clamp lever 21 through the mounting part 213 and connected to the mounting part 213. An outer lever base 231 is provided at the proximal end of the outer lever 23. A positioning groove 232 is provided on the outer lever base 231. The lever assembly 2 is connected to the control assembly 4 through the outer lever base 231.

[0029] The actuator assembly 3 includes a first jaw 31 and a second jaw 32. The first jaw 31 can be connected to the far end of the outer rod 23. The second jaw 32 can be connected to the outer rod 23 via a connecting pin 33 and is driven to the far end of the jaw bar 21 via a drive pin 34.

[0030] The control component 4 includes a bracket 41, and a clamp bar drive mechanism 42 and a tool bar drive mechanism 44 disposed on the bracket 41. The clamp bar drive mechanism 42 is drivenly connected to the clamp bar 21, and the tool bar drive mechanism 44 is drivenly connected to the tool bar.

[0031] This embodiment provides a forceps head control structure that can be used in the above-described bipolar electrocoagulation forceps. The structure controls the forceps head by driving the two forceps heads closer together to clamp tissue, or by electrically connecting conductive plates on the forceps heads to a high-frequency electrosurgical energy platform to apply high-frequency electrical energy to the clamped tissue. It should be noted that the high-frequency electrosurgical energy platform can be one already disclosed in the prior art or implemented according to the manufacturer's recommendations. This embodiment will not elaborate on the structure or principle of the high-frequency electrosurgical energy platform.

[0032] Specifically, refer to Figure 2 The forceps head control structure includes a support 41, a forceps bar drive mechanism, and an activation button 43. The forceps bar drive mechanism drives the forceps bar 21, which is linked to the forceps head, causing the forceps bar 21 to move closer to or further apart. The activation button 43 generates a closed circuit to electrically connect the conductive plate on the forceps head to the high-frequency electrosurgical energy platform.

[0033] The clamp lever 21 driving mechanism may include a trigger component, which includes a first operating part 421, a second operating part 422, and a connecting part 429. The first operating part 421 and the second operating part 422 are disposed at the lower end of the connecting part 429, and the first operating part 421, the second operating part 422, and the connecting part 429 form a generally Y-shaped integral structure. The upper end of the connecting part 429 is drivenly connected to the clamp lever 21, and the connecting part 429 is rotatably connected to the bracket 41, so that the clamp lever 21 driving mechanism can be rotatably connected to the bracket 41 through the connecting part 429. When using the bipolar electrocautery clamp of this embodiment, by moving the first operating part 421, the trigger component rotates relative to the bracket 41, and the connecting part 429 drives the clamp lever 21 to slide along the axial direction of the lever assembly 2, thereby driving the clamp head to move.

[0034] The second operating part 422 may be provided with a receiving groove 428 for installing the activation button 43, and the activation button 43 can be sealed and connected to the receiving groove 428. For example, a sealing structure is provided between the receiving groove 428 and the activation button 43, or the receiving groove 428 and the activation button 43 are glued together with sealant to prevent liquids such as cleaning fluid from entering the activation button 43.

[0035] Therefore, the upper end of the connecting part 429 is connected to the clamp bar 21 of the bipolar electrocautery clamp, and the clamp bar 21 is used to drive the clamp head to open and close, so that the clamp head control structure of this utility model can control the clamp head more conveniently and reliably; the activation button 43 is sealed and connected to the receiving groove 428, so the clamp head control structure of this utility model can operate the activation button 43 more conveniently, improving the convenience and reliability of the operation of the bipolar electrocautery clamp. Moreover, since the activation button 43 is sealed and connected, when cleaning, disinfecting and sterilizing the bipolar electrocautery clamp, cleaning fluid and other liquids are not easy to enter the activation button 43, preventing damage to the electronic components inside the activation button 43.

[0036] As a concrete example, the activation button 43 may include a pressing element and an electronic switch. The pressing element can be pressed by the user and deforms upon application of force / pressure to trigger the electronic switch, thereby electrically connecting the conductive plate on the forceps head to the high-frequency electrosurgical energy platform. The electronic switch is disposed in a receiving groove 428. The pressing element is sealed to the second operating part 422, and after the pressing element is sealed to the second operating part 422, it can completely cover the receiving groove 428, thereby sealing the electronic switch within the receiving groove 428 and preventing liquids such as cleaning fluid from entering the activation button 43 and damaging the electronic switch.

[0037] More specifically, refer to Figure 7 The pressing component includes a pressing part and a connecting part 429. The connecting part 429 is glued to the receiving groove 428. The pressing part can protrude from the surface of the second operating part 422 to facilitate user pressing. The pressing part is preferably made of a flexible material, such as rubber, plastic, silicone, or any other deformable and waterproof material.

[0038] Continue to refer to Figure 7 The trigger component can be a hollow structure, and the upper end of the connecting part 429 can be provided with a connecting hole 427, which is connected to the receiving groove 428 for wiring. That is, the wire used to electrically connect the electronic switch and the high-frequency electrosurgical energy platform can enter the interior of the trigger component through the connecting hole 427, and pass out through the receiving groove 428 to electrically connect with the electronic switch.

[0039] As one embodiment of the trigger mechanism, a hinge shaft 423 may be provided on each side of the connecting portion 429. The bracket 41 includes a first side plate 411 and a second side plate 412, and the two hinge shafts 423 are respectively connected to the first side plate 411 and the second side plate 412. Specifically, refer to... Figure 7The bracket 41 may include a first side plate 411, a second side plate 412, a first connecting plate 413, and a connecting seat 414. The first connecting plate 413 and the connecting seat 414 are arranged front to back. The first side plate 411 and the second side plate 412 are located on both sides of the first connecting plate 413 and the connecting seat 414. The distal ends of the first side plate 411 and the distal ends of the second side plate 412 are respectively connected to both sides of the connecting seat 414, and the proximal ends of the first side plate 411 and the proximal ends of the second side plate 412 are respectively connected to both ends of the first connecting plate 413. In addition, to ensure the stability of the bracket 41, a second connecting plate 415 may be provided. The second connecting plate 415 is located at the proximal end of the bracket 41, that is, the second connecting plate 415 is connected to the proximal ends of the first side plate 411 and the second side plate 412 respectively, and the second connecting plate 415 is located below the first connecting plate 413.

[0040] Further optimization involves providing a reset element 424 on the trigger mechanism. The trigger mechanism typically has at least two states: in the initial state, the trigger mechanism does not drive the clamping bar 21, and the clamping heads are in the open state; in the clamping state, the trigger mechanism drives the clamping bar 21 to slide, thereby causing the two clamping heads to rotate relative to each other, so that the clamping heads are in the closed state. Therefore, the reset element 424 is used to hold the trigger mechanism in the initial state, preventing accidental operation of the clamping heads.

[0041] Specifically, refer to Figure 3 and Figure 4 At least one of the two hinge shafts 423 of the connecting part 429 is provided with a reset member 424. One end of the reset member 424 engages with the trigger member, and the other end engages with the bracket 41. When the user applies force to the first operating part 421 of the trigger member, the trigger member rotates relative to the bracket 41, forcing the reset member 424 to deform. When the user stops applying force to the first operating part 421, the reset member 424 returns to its original deformation, causing the trigger member to rotate, which in turn drives the clamp bar 21, so that the clamp head is in the open state. The reset member 424 can be a spring, such as a torsion spring, tension spring, or compression spring.

[0042] As another embodiment of the clamp lever 21 driving mechanism, a driving part 425 may be provided at the upper end of the connecting part 429 of the trigger member. The driving part 425 and the connecting part 429 may be detachably connected, such as by a snap-fit ​​connection, a threaded connection, or a form fit. The driving part 425 and the clamp lever 21 are driven together, so that the trigger member can be driven to connect with the clamp lever 21 through the driving part 425.

[0043] Specifically, the drive unit 425 may have a mating groove that is roughly U-shaped. A drive groove 426 may be provided on the groove wall of the mating groove. At least part of the clamp bar 21 is accommodated in the mating groove, and a driven member that mates with the drive groove 426 is provided on the clamp bar 21. When the trigger member rotates relative to the bracket 41, the drive unit 425 drives the driven member to move through the drive groove 426, thereby driving the clamp bar 21 to move.

[0044] More specifically, the opening direction of the drive groove 426 intersects the axial direction of the clamp bar 21, and at least part of the driven member is located in the drive groove 426. At this time, since the clamp bar 21 and the bracket 41 are slidably connected, when the trigger member rotates relative to the bracket 41, the degree of freedom of the clamp bar 21 is limited and it can only slide relative to the bracket 41 along its own axial direction. The part of the driven member located in the drive groove 426 slides within the drive groove 426, but always cooperates with the drive groove 426, thereby converting the rotation of the trigger member into the sliding of the clamp bar 21.

[0045] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A clamp head control structure, characterized in that: The device includes a support, a clamp lever drive mechanism, and an activation button. The clamp lever drive mechanism includes a trigger component, which comprises a first operating part, a second operating part, and a connecting part arranged in a generally Y-shape. The clamp lever drive mechanism is rotatably connected to the support via the connecting part. The first and second operating parts are located at the lower end of the connecting part, and the upper end of the connecting part is connected to the clamp lever of the bipolar electrocautery clamp. The clamp lever is used to drive the clamp head to open and close. The second operating part is provided with a receiving groove, and the activation button is sealed and connected to the receiving groove.

2. The clamp head control structure according to claim 1, characterized in that: The activation button includes a pressing element and an electronic switch. The electronic switch is disposed in the receiving groove. The pressing element is sealed to the second operating part, and after the pressing element is connected to the second operating part, it can completely cover the receiving groove. When the pressing element is pressed, it can deform and trigger the electronic switch.

3. The clamp head control structure according to claim 2, characterized in that: The pressing component includes a pressing part and a connecting part. The connecting part is glued to the receiving groove. The pressing part protrudes from the surface of the second operating part.

4. The clamp head control structure according to claim 2, characterized in that: The trigger component has a hollow structure, and the upper end of the connecting part has a connecting hole. The connecting hole communicates with the receiving groove, and the wire used to electrically connect the electronic switch and the high-frequency electrosurgical energy platform can enter the interior of the trigger component through the connecting hole.

5. The clamp head control structure according to claim 1, characterized in that: A hinge shaft is provided on each side of the connecting part, and the bracket includes a first side plate and a second side plate. The two connecting shafts are rotatably connected to the first side plate and the second side plate, respectively.

6. The clamp head control structure according to claim 5, characterized in that: Of the two hinge shafts, at least one hinge shaft is provided with a reset member, one end of which cooperates with the trigger member, and the other end of which cooperates with the bracket.

7. The clamp head control structure according to claim 1, characterized in that: The upper end of the connecting part is connected to a driving part, and the connecting part is connected to the clamp rod through the driving part.

8. The clamp head control structure according to claim 7, characterized in that: The drive unit has a generally U-shaped mating groove, and a drive groove is formed on the groove wall of the mating groove. At least part of the clamp rod is accommodated in the mating groove, and a driven member that mates with the drive groove is provided on the clamp rod.

9. A clamp head control structure according to claim 8, characterized in that: The clamp bar and the bracket are slidably connected. The opening direction of the drive groove intersects the axial direction of the clamp bar, and at least part of the driven member is located in the drive groove.

10. A bipolar electrocoagulation clamp, characterized in that: The device includes a housing assembly, a lever assembly, an actuator assembly, and a drive assembly. The drive assembly includes a bracket, a bar drive mechanism, and a jaw control structure mounted on the bracket. The proximal end of the lever assembly is located in the housing assembly and is at least partially inserted into the bracket. The bar drive mechanism is drively connected to the proximal end of the bar of the lever assembly, and the jaw control structure is drively connected to the proximal end of the jaw bar of the lever assembly. The jaw control structure is the jaw control structure according to any one of claims 1 to 9.

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