Quick release mechanism for rod forceps and bipolar coagulation forceps

Abstract

The invention discloses a quick release mechanism for rod forceps and bipolar electrocoagulation forceps, and belongs to the technical field of electrosurgical operating instruments. According to the quick release mechanism for the rod forceps, an actuator assembly is arranged at the tail end of a rod assembly and comprises a clamp at least used for making contact with tissue, a rotary knob is arranged at the other tail end, away from the actuator assembly, of the rod assembly in a sleeving mode, a quick release assembly is connected into the rotary knob, and the quick release assembly comprises an excitation piece and a locking base; the rod assembly is at least partially inserted into the locking seat, the excitation part can slide relative to the locking seat, so that the excitation part has an unlocking state and a locking state, when the excitation part is in the locking state, the rod assembly and the excitation part are in locking fit, and the knob can drive the rod assembly to rotate; when the excitation piece is in the unlocking state, the rod assembly can be detached from the locking base, the detaching process is more convenient and faster, and operation is easy.

Description

Technical Field

[0001] This disclosure relates to high-frequency electrosurgical instruments, and more specifically, to a lever forceps quick-release mechanism 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, different forceps heads may be needed for different wounds or surgical sites. However, existing bipolar electrocoagulation forceps cannot have interchangeable forceps heads, requiring the use of multiple bipolar electrocoagulation forceps with different heads, which is inconvenient. In addition, with the development of equipment and related processes for cleaning, disinfecting, and sterilizing medical devices, bipolar electrocoagulation forceps can meet the corresponding reuse standards after cleaning, disinfecting, and sterilizing. Therefore, how to quickly and efficiently clean, disinfect, and sterilize bipolar electrocoagulation forceps is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a quick-release mechanism for lever clamps and a bipolar electrocautery clamp.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lever clamp quick-release mechanism includes a lever assembly, an actuator assembly, and a knob. The actuator assembly is disposed at the end of the lever assembly and includes clamps for contacting tissue. The knob is sleeved on the other end of the lever assembly away from the actuator assembly. A quick-release assembly is connected inside the knob. The quick-release assembly includes an actuating element and a locking seat. The lever assembly is at least partially inserted into the locking seat. The actuating element is slidable relative to the locking seat to allow the actuating element to have an unlocked state and a locked state. The lever assembly is configured such that: when the actuating element is in the locked state, the lever assembly is locked to the actuating element, and the knob can drive the lever assembly to rotate; when the actuating element is in the unlocked state, the lever assembly can be removed from the locking seat.

[0007] Preferably, it also includes a button, which is protruding and embedded in the knob. The button is in contact with the exciter and is used to drive the exciter to slide relative to the locking seat.

[0008] Preferably, the actuating element includes a contact portion, a fixing portion, and an elastic element. The contact portion engages with the button, the fixing portion engages with the lever assembly when the actuating element is in the locked state, and disengages from the lever assembly when the actuating element is in the unlocked state. The elastic element is disposed on the contact portion to achieve the reset of the actuating element.

[0009] Preferably, the side of the locking seat is provided with a limiting groove that cooperates with the fixing part, and the middle of the locking seat is provided with a first channel through which the shaft can pass.

[0010] Preferably, the shaft includes a cutter bar, a clamp bar, an outer bar, a first insulating layer, and a second insulating layer that can be sleeved as an integral structure. The cutter bar is located in the innermost layer and has a cutting blade at its end. The clamp bar has a clamp at its end and a first insulating layer is provided between the cutter bar and the clamp bar. The outer bar is located in the outermost layer and a second insulating layer is provided between the outer bar and the clamp bar.

[0011] Furthermore, the outer rod is provided with a locking hole, which is used to lock into the fixing part.

[0012] Further optimized, the fixing part is a C-shaped structure, with a fixing protrusion at the bottom of the C-shaped structure, and a locking hole is opened on the lower side of the outer rod. The outer rod passes through the C-shaped structure, and the fixing protrusion and the locking hole are locked together.

[0013] The present invention also provides a bipolar electrocautery clamp, comprising a lever quick-release mechanism and a main body, wherein the lever quick-release mechanism is any of the lever quick-release mechanisms described above, and the lever assembly of the lever quick-release mechanism is detachably connected to the main body.

[0014] In a further optimized manner, the main body includes a control component and a housing component. The control component is disposed within the housing component, the knob is sleeved on the housing component, and the end of the lever component away from the actuator component is at least partially inserted into the control component. The lever component and the control component are in a transmission engagement.

[0015] Further optimized, it also includes a first connecting seat, and the control component includes a first connecting plate and a second connecting plate. The first connecting seat has a first screw hole and a second screw hole on both sides for bolting connection with the first connecting plate and the second connecting plate. The first connecting seat has a second channel in the middle for the rod assembly to pass through.

[0016] This invention, by incorporating a quick-release mechanism for the lever assembly and actuator assembly, allows for the detachment of the lever assembly and actuator assembly as a single unit from the main body of the bipolar electrocautery forceps. This enables the cleaning, disinfection, and sterilization of the lever assembly, actuator assembly, and the main body of the bipolar electrocautery forceps, allowing for multiple uses of the bipolar electrocautery forceps and significantly reducing medical costs while ensuring safety. Furthermore, it allows for the replacement of forceps heads of different shapes and sizes to meet the needs of treating various wounds or surgical sites, making it more convenient to use. In addition, the quick-release mechanism of this invention allows the lever assembly to be removed from the locking seat simply by pressing the trigger, making the disassembly process more convenient, faster, and easier to operate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the rod assembly of the present invention;

[0018] Figure 2 This is a cross-sectional structural schematic diagram of the bipolar electrocautery clamp of the present invention;

[0019] Figure 3 yes Figure 2 An enlarged view of point A;

[0020] Figure 4 This is a schematic diagram of the structure of the excitation element of the present invention;

[0021] Figure 5 This is a schematic diagram of the locking seat of the present invention;

[0022] Figure 6 This is an exploded view of the rod assembly of the present invention;

[0023] Among them, 1. Actuator assembly; 11. Clamp; 2. Rod assembly; 21. Tool bar; 22. Clamp bar; 23. Outer rod; 24. Second insulating layer; 25. First insulating layer; 211. Cutting blade; 231. Locking hole; 3. Knob; 31. Button; 4. Quick release assembly; 41. Locking seat; 411. Limiting groove; 412. First channel; 42. Actuating element; 421. Contact part; 422. Elastic element; 423. Fixing part; 424. Fixing protrusion. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figure 1-2 As shown, a lever clamp quick-release mechanism of the present invention includes a lever assembly 2, an actuator assembly 1, and a knob 3.

[0026] The actuator assembly 1 can be located at the end of the lever assembly 2, specifically at the distal end of the lever assembly 2. The actuator assembly 1 includes a clamp 11 for contacting tissue. The clamp 11 typically includes two clamp heads that can approach each other to clamp the tissue. After the tissue is clamped, a conductive plate located on the clamp head is connected to a high-frequency energy platform, thereby delivering high-frequency electrical energy between the clamped tissues to achieve sealing of the clamped tissue and hemostasis. After sealing, the blade can be driven to advance along the cutting groove on the clamp head, thereby cutting the sealed tissue.

[0027] The knob 3 is mounted on the other end of the lever assembly 2 away from the actuator assembly 1, that is, the lever assembly 2 is closer to the proximal end of the body of the bipolar electrocautery clamp. After the lever assembly 2 is rotatably connected to the body of the bipolar electrocautery clamp, the knob 3 is used to drive the lever assembly 2 to rotate relative to the body of the bipolar electrocautery clamp in order to adjust the angle of the clamp 11.

[0028] A quick-release assembly 4 can be connected inside the knob 3. This quick-release assembly 4 is used to quickly detach and assemble the rod assembly 2 and the main body of the bipolar electrocautery clamp.

[0029] As an example, the quick-release assembly 4 includes an actuator 42 and a locking seat 41, with the lever assembly 2 at least partially inserted into the locking seat 41. The actuator 42 is slidable relative to the locking seat 41 so that the actuator 42 has an unlocked state and a locked state. When the actuator 42 is in the locked state, the lever assembly 2 is locked to the locking seat 41, and the knob 3 can drive the lever assembly 2 to rotate. Since the knob 3 is usually rotatably connected to the body of the bipolar electrocautery clamp, the lever assembly 2 and the actuator assembly 1 located at the far end of the lever assembly 2 are rotatably connected to the body of the bipolar electrocautery clamp. When the actuator 42 is in the unlocked state, the lever assembly 2 is released from the locking seat 41, and the lever assembly 2 can be removed from the locking seat 41. At this time, the knob 3 is still connected to the body of the bipolar electrocautery clamp. That is, the lever assembly 2 and the actuator assembly 1 located at the far end of the lever assembly 2 are removed from the body of the bipolar electrocautery clamp, thereby completing the quick removal of the lever assembly 2 from the body of the bipolar electrocautery clamp.

[0030] By adopting the above-described technical solution of this embodiment, users can quickly and easily remove the shaft and actuator assembly 1 from the main body using the quick-release assembly 4 for cleaning, disinfection, sterilization, and other operations, ensuring safety when reusing the device. Furthermore, reusable devices reduce the waste of medical resources and lower medical costs.

[0031] As an example of a triggering method, such as Figure 1As shown, the lever clamp quick-release mechanism of the present invention may further include a button 31, which is protruding and embedded in the knob 3 or as part of the knob 3. The button 313 is in contact with the actuating element 42 and can be used to drive the actuating element 42 to slide relative to the locking seat 41. The surface of the knob 3 may be provided with protruding ridges, which increases the friction between the user and the knob 3, further ensuring the reliability of the actuator assembly 1 during rotation control by the knob 3, and facilitating the user's positioning during operation, further improving the convenience of the disassembly process.

[0032] Of course, as another example of the excitation method, the knob 3 may be provided with an operation hole, so that at least part of the excitation element 42 can be exposed on the knob 3, and the user can operate the excitation element 42 by pressing the part of the excitation element 42 exposed on the knob 3.

[0033] As an example of an exciter, such as Figure 3-4 As shown, the actuating element 42 may include a contact portion 421, a fixing portion 423, and an elastic element 422. When the knob 3 is provided with a button 31, the contact portion 421 can contact and engage with the button 31. The fixing portion 423 engages with the rod assembly 2 when the actuating element 42 is in the locked state and disengages from the rod assembly 2 when the actuating element 42 is in the unlocked state. This locking engagement can be a friction engagement to achieve locking, or a shape engagement to achieve locking, or a locking engagement similar to a pin and a locking pin, or any other engagement method that can achieve locking to prevent the rod assembly 2 from moving relative to the locking seat 41 along its axial direction. The elastic element 422 is provided on the contact part 421 to realize the reset of the excitation element 42. The elastic element 422 can be a spring in the form of a compression spring, tension spring, torsion spring, etc. One leg of the spring cooperates with the excitation element 42, and the other leg of the spring cooperates with the locking seat 41 or the knob 3. When force is applied to the excitation element 42 to put it in the unlocked state, the elastic element 422 deforms and has elastic potential energy. When the applied force is removed, the elastic element 422 restores its deformation and drives the excitation element 42 to reset.

[0034] As an example of a locking seat, such as Figure 5 As shown, the side of the locking seat 41 is provided with a limiting groove 411 that cooperates with the fixing part 423, and the middle of the locking seat 41 is provided with a first channel 412 through which the shaft rod can pass.

[0035] By adopting the above technical solution, during use, the user can press the button 31 on the knob 3. The button 31 presses down to activate the actuator 42, causing the actuator 42 to switch from the locked state to the unlocked state. At the same time, the fixing part 423 disengages from the rod assembly 2, allowing the shaft to disengage from the first channel 412 located in the middle of the locking seat 41, thus quickly and easily disassembling the rod assembly 2.

[0036] As one example, such as Figure 6 As shown, the shaft may include a cutter bar 21, a clamp bar 22, an outer bar 23, a first insulating layer 25, and a second insulating layer 24, which can be sleeved as an integral structure. The cutter bar 21 is located in the innermost layer, and a cutting blade 211 is provided at the end of the cutter bar 21. A clamp 11 is provided at the end of the clamp bar 22. The first insulating layer 25 is provided between the cutter bar 21 and the clamp bar 22. The outer bar 23 is located in the outermost layer, and the second insulating layer 24 is provided between the outer bar 23 and the clamp bar 22. The materials of the first insulating layer 25 and the second insulating layer 24 can be resin, silicone rubber, PVC, or any other material that can achieve the same function.

[0037] In addition, the outer rod 23 is provided with at least one locking hole 231, or multiple locking holes 231, which are used to lock and engage with the fixing part 423.

[0038] As a further optimization, such as Figure 4 As shown, the fixing part 423 can be a C-shaped structure or any other structure that can achieve the same function, such as a U-shaped structure, a V-shaped structure, etc. The bottom end of the C-shaped structure can be provided with a fixing protrusion 424. The outer rod 23 can have a locking hole 231 at least on its lower side corresponding to the fixing protrusion 424. Alternatively, multiple fixing protrusions 424 can be provided, and multiple locking holes 231 corresponding to the multiple fixing protrusions 424 can be provided on the lower side of the outer rod 23. The outer rod 23 passes through the C-shaped structure, and the fixing protrusion 424 and the locking hole 231 are locked together. Furthermore, a limiting groove 411 may be provided on the locking seat 41. The limiting groove 411 is used to accommodate the C-shaped structure of the fixing part 423. When the rod assembly 2 attempts to move relative to the locking seat 41 along its axial direction in the locked state, the locking hole 231 interferes with the fixing protrusion 424, and the C-shaped structure abuts against the groove wall of the limiting groove 411 to prevent the fixing part 423 from breaking and causing damage to the quick release mechanism of the rod clamp of the present invention.

[0039] By adopting the above technical solution, when the exciter 42 is in the locked state, the shaft can be firmly inserted into the first channel 412 of the locking seat 41 through the cooperation of the fixing part 423 and the locking hole 231, thus ensuring the structural stability of the device.

[0040] The present invention also provides a bipolar electrocautery clamp, which includes a lever clamp quick-release mechanism and a main body. The lever clamp quick-release mechanism is the lever clamp quick-release mechanism described above in this embodiment, and the lever assembly 2 of the lever clamp quick-release mechanism is detachably connected to the main body.

[0041] The main body includes a control component and a housing component. The control component is located inside the housing component. The knob 3 is sleeved on the housing component. The end of the lever component 2 away from the actuator component 1 is at least partially inserted into the control component. The lever component 2 is driven by the control component, so that the control component can drive the clamp 11 of the lever component 2 to clamp the tissue and drive the blade of the lever component 2 to cut the tissue.

[0042] As an example, the bipolar electrocautery pliers of this embodiment may also include a first connecting seat, and the control component includes a first connecting plate and a second connecting plate. The first connecting seat has a first screw hole and a second screw hole on both sides for bolting the first connecting plate and the second connecting plate. The first connecting seat has a second channel in the middle for the rod assembly 2 to pass through. After the rod assembly 2 passes through the second channel, it can be connected to the pliers head drive component and the knife bar drive component of the control component for transmission.

[0043] Compared with the prior art, the quick-release mechanism of the lever clamp allows the shaft and actuator assembly 1 to be easily and quickly disassembled for cleaning and disinfection, ensuring the safety and effectiveness of the bipolar electrocoagulation forceps during use. At the same time, the reusable bipolar electrocoagulation forceps also reduces waste and lowers medical costs.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lever clamp quick-release mechanism, comprising a lever assembly, an actuator assembly, and a knob, wherein the actuator assembly is disposed at one end of the lever assembly, the actuator assembly including at least clamps for contacting tissue, and the knob is sleeved on the other end of the lever assembly remote from the actuator assembly, characterized in that, The knob is internally connected to a quick-release assembly, which includes an actuator and a locking seat. The lever assembly is at least partially inserted into the locking seat. The actuator is slidable relative to the locking seat to allow the actuator to have an unlocked state and a locked state. The lever assembly is configured such that: when the actuator is in the locked state, the lever assembly is locked to the actuator, and the knob can drive the lever assembly to rotate; when the actuator is in the unlocked state, the lever assembly can be removed from the locking seat.

2. The lever clamp quick-release mechanism according to claim 1, characterized in that, It also includes a button, which is protruding and embedded in the knob. The button is in contact with the exciter and is used to drive the exciter to slide relative to the locking seat.

3. The lever clamp quick-release mechanism according to claim 2, characterized in that, The actuating element includes a contact portion, a fixing portion, and an elastic element. The contact portion engages with the button. The fixing portion engages with the rod assembly when the actuating element is in a locked state and disengages from the rod assembly when the actuating element is in an unlocked state. The elastic element is disposed on the contact portion to achieve the reset of the actuating element.

4. The lever clamp quick-release mechanism according to claim 3, characterized in that, The locking seat has a limiting groove on its side that cooperates with the fixing part, and the locking seat has a first channel in the middle for the shaft to pass through.

5. The lever clamp quick-release mechanism according to claim 4, characterized in that, The shaft includes a cutter bar, a clamp bar, an outer bar, a first insulating layer, and a second insulating layer, which can be sleeved as an integral structure. The cutter bar is located in the innermost layer, and a cutting blade is provided at the end of the cutter bar. The clamp bar is provided at the end of the clamp bar. A first insulating layer is provided between the cutter bar and the clamp bar. The outer bar is located in the outermost layer, and a second insulating layer is provided between the outer bar and the clamp bar.

6. The lever clamp quick-release mechanism according to claim 5, characterized in that, The outer rod is provided with a locking hole, which is used to lock into the fixing part.

7. The lever clamp quick-release mechanism according to claim 6, characterized in that, The fixing part is a C-shaped structure, and a fixing protrusion is provided at the bottom end of the C-shaped structure. The outer rod has a locking hole at least on its lower side. The outer rod passes through the C-shaped structure, and the fixing protrusion and the locking hole are locked together.

8. A bipolar electrocoagulation clamp, characterized in that, The device includes a lever quick-release mechanism and a main body. The lever quick-release mechanism is the lever quick-release mechanism according to any one of claims 1-7, and the lever assembly of the lever quick-release mechanism is detachably connected to the main body.

9. A bipolar electrocautery clamp according to claim 8, characterized in that, The main body includes a control component and a housing component. The control component is disposed within the housing component. The knob is sleeved on the housing component. The end of the lever component away from the actuator component is at least partially inserted into the control component. The lever component is in a transmission engagement with the control component.

10. A bipolar electrocoagulation clamp according to claim 9, characterized in that, It also includes a first connecting seat. The control component includes a first connecting plate and a second connecting plate. The first connecting seat has a first screw hole and a second screw hole on both sides for bolting the first connecting plate and the second connecting plate. The first connecting seat has a second channel in the middle for the rod assembly to pass through.

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