Treatment device

Abstract

A treatment device with high frequency functionality has a pair of closed jaws. The upper and lower jaws are openable and closable and serve as a high frequency electrode to clamp and seal and / or transect tissue. A knife blade passes through a channel in the upper and lower jaws and is used to open and close the upper and lower jaws. Additional structures and mechanisms facilitate the operation of the upper and lower jaws and increase the opening strength of the closed jaws, which is useful in procedures where the closed jaws are used to dissect tissue using an opening motion of the closed jaws.

Description

[0001] Relevant application data

[0002] Pursuant to 35:119 of the United States Code, this application is based on and claims priority to U.S. Provisional Application No. 63 / 145,237, filed February 3, 2021, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to a treatment device having an openable first jaw and a second jaw. The openable jaw is used to clamp tissue for sealing and transverse cutting. A blade is used to close the jaw, and various mechanisms for assisting in opening the jaw are disclosed, which are useful in tissue dissection procedures. Background Technology

[0004] In the following discussion, specific structures and / or methods are referenced. However, these references should not be construed as an admission that these structures and / or methods constitute prior art. The applicant expressly reserves the right to demonstrate that such structures and / or methods do not conform to the prior art of this invention.

[0005] Figures 14A, 14B, and 14C are diagrams of a treatment apparatus disclosed in the prior art (U.S. Patent Application Publication No. 2009 / 0076506A1). Figure 14A shows the working end 210 with jaws 222a and 222b in the open position, jaws 222a and 222b having outer-facing surfaces 262A and 262B and energy delivery surfaces 265A and 265B. A channel 242 within the jaws accommodates the movement of a reciprocating member 240, which may include tissue-cutting elements (e.g., having sharp distal edges). The edges 268 of the energy delivery surfaces 265A and 265B may be rounded to prevent tissue dissection. Figure 14B shows the working end 210 with jaws 222a and 222b in the closed position. The reciprocating member 240 is designed to move back and forth within the channel 242 and the dimension D between the energy delivery surfaces is visible. Figure 14C shows the distal end of the reciprocating member 240, which has upper and lower flanges or "C"-shaped portions 250A and 250B. The flanges 250A and 250B define inner cam surfaces 252A and 252B for slidably engaging jaws 222a and 222b, respectively, the outer surfaces 262A and 262B.

[0006] A drawback of the existing treatment device is that, while the reciprocating member 240 is used to close the jaws 222a and 222b by gradually sliding the reciprocating member 240 forward through the channel 242, the rearward movement of the reciprocating member 240 provides a weak force to open the jaws 222a and 222b. When resistance is present, there may not be sufficient force to open the jaws 222a and 222b. When the operator is required to open the jaws of the treatment device despite any obstruction during a dissection procedure, the existing treatment device will be unable to complete this task due to a lack of force to open the jaws 222a and 222b. Summary of the Invention

[0007] Therefore, there is a need to design a treatment device with an improved structure to increase the force that can be applied to open the jaws of the treatment end, which would essentially eliminate one or more problems caused by the limitations and disadvantages of existing treatment devices.

[0008] The purpose of this disclosure is to provide an improved treatment apparatus that, compared to the prior art, offers an efficient design for the opening and closing of the upper and lower jaws used as high-frequency electrodes. At least one or more of these objectives are achieved through the treatment apparatus disclosed herein.

[0009] The disclosed embodiment of the treatment device includes a treatment device having: a body including a movable handle and a connector configured to be connected to a power source supplying power for high-frequency treatment using the treatment device; a longitudinally extending shaft having a proximal end connected to the body; and a treatment end pivotally engaged with a distal end of the shaft. The treatment end includes a movable cutting blade, a jaw structure having a first jaw and a second jaw, and a first channel in the first jaw and a second channel in the second jaw. The first jaw and the second jaw are connected at their base ends by an engagement structure to allow the first jaw to pivot relative to the second jaw, thereby opening and closing the jaw structure. When the jaw structure is in a closed state, the first channel and the second channel form a path for the cutting blade to move longitudinally back and forth between the base end and the distal end of the jaw structure in response to a first input at the body. In response to a second input at the body, a force is applied by a component to move the first jaw away from the second jaw.

[0010] The disclosed embodiments of the treatment device also include a treatment device having a line connected to one of a first jaw and a second jaw to move the first jaw away from the second jaw in response to a second input applied to the body.

[0011] The disclosed embodiments of the treatment device also include a treatment device having a hook member protruding from a movable cutting blade, which is coupled to a member protruding from one of a first jaw and a second jaw. The hook member is used in response to a second input force applied at the body to move the first jaw away from the second jaw. During retraction of the movable cutting blade, the hook member contacts the member protruding from one of the first jaw and the second jaw and applies a force to move the first jaw away from the second jaw.

[0012] Embodiments of the disclosed treatment device also include a treatment device having a rear surface of a movable cutting blade coupled to a member protruding from one of a first jaw and a second jaw, the rear surface being used to move the first jaw away from the second jaw in response to a second input force applied at the body. During retraction of the movable cutting blade, the rear surface of the cutting blade contacts the member protruding from one of the first jaw and the second jaw and applies a force to move the first jaw away from the second jaw.

[0013] The disclosed embodiments of the treatment device also include a treatment device having a member connected to an inner top plate of one of the first and second jaws by means of an elastic member such as a spring. This member engages with an inclined surface formed on a movable cutting blade, the inclined surface being used to move the first jaw away from the second jaw in response to a second input force applied at the body. During retraction of the movable cutting blade, the inclined surface engages with a member protruding from one of the first and second jaws to apply force thereby moving the first jaw away from the second jaw.

[0014] The disclosed embodiments of the treatment device also include a treatment device in which the elastic member is a spring.

[0015] The disclosed embodiments of the disposal device also include a disposal device in which the second input is the movement of a movable handle.

[0016] The disclosed embodiments of the treatment device also include a treatment device in which the movable cutting blade includes an inclined portion on its surface.

[0017] The disclosed embodiments of the treatment device also include a treatment device in which a slider is disposed between a movable handle and a first jaw and a second jaw.

[0018] The disclosed embodiments of the treatment device also include a treatment device in which at least one of the first jaws and the second jaws is used as a high-frequency electrode.

[0019] The disclosed embodiments of the treatment device also include a treatment device in which the movable cutting blade is a different post electrode compared to at least one of the first jaws and the second jaws.

[0020] The disclosed embodiments of the treatment device also include a treatment device in which a coupling structure is disposed between the shaft and the first jaw and the second jaw.

[0021] The disclosed embodiments of the disposal device also include a disposal device in which the engagement structure includes at least a pulley or a link.

[0022] Other systems, methods, features, and advantages will be or will become apparent to those skilled in the art upon examination of the following drawings and specific description. It is intended that all such additional systems, methods, features, and advantages be included in this specification, within the scope of this disclosure, and protected by the claims. Nothing in this section should be construed as limiting these claims. Other aspects and advantages are discussed below in conjunction with embodiments of the disclosed input device. It should be understood that the foregoing general description and subsequent detailed description of the disclosed input device are exemplary and illustrative, and are intended to provide further explanation of the claimed disclosed input device. Attached Figure Description

[0023] The following detailed description of the preferred embodiments can be read in conjunction with the accompanying drawings, in which the same numbers indicate the same elements, wherein:

[0024] Figure 1 The diagram illustrates a treatment device including a main body, a shaft, and a treatment end.

[0025] Figure 2 The diagram shows Figure 1 The diagram shows an enlarged view of the processing end and illustrates the upper and lower jaws in the open configuration.

[0026] Figure 3A and Figure 3B The diagram illustrates the engagement structure of the jaws and the engagement structure between the processing end and the shaft.

[0027] Figure 4 The upper and lower jaws of the treatment end and their internal structure are illustrated in a cross-sectional view.

[0028] Figure 5 The illustration shows the features of the upper jaw and upper channel for moving the I-shaped cutting blade.

[0029] Figure 6 The diagram shows a cross-sectional view of the upper and lower jaws of the treatment end in the closed state.

[0030] Figure 7A and Figure 7B The upper and lower jaws of the treatment end and their internal structure are illustrated in a cross-sectional view.

[0031] Figure 8AThe illustration shows the features of the upper jaw and upper channel for moving the I-shaped cutting blade.

[0032] Figure 8B The rear-view stereoscopic diagram illustrates the upper jaws, lower jaws, and features of the structure used to open the upper jaws.

[0033] Figure 9A The upper and lower jaws of the treatment end in the open state are illustrated in a cross-sectional view.

[0034] Figure 9B The diagram illustrates the upper jaws and lower jaws, as well as the features of the structure used to open the upper jaws.

[0035] Figure 10 The diagram illustrates the upper jaws and lower jaws, as well as the features of the structure used to open the upper jaws.

[0036] Figure 11A , Figure 11B and Figure 11C The diagram shows the upper and lower jaws in the open and closed positions (respectively). Figure 11A as well as Figure 11B and Figure 11C ) and the structure for closing the upper jaws.

[0037] Figure 12 The diagram shows a cross-sectional view of the upper and lower jaws of the treatment end in the closed state.

[0038] Figure 13A , Figure 13B and Figure 13C The diagram shows the upper and lower jaws in the open and closed positions (respectively). Figure 13A as well as Figure 13B and Figure 13C ) and the structure for opening the upper jaws.

[0039] Figures 14A to 14C are diagrams of processing devices disclosed in the prior art.

[0040] For ease of observation, in some cases, only some named features in the figure are labeled with reference numerals. Detailed Implementation

[0041] Figure 1 This is an illustration of a treatment device 300 including a main body 302, a shaft 304, and a treatment end 306. The main body 302 includes a movable arm 308 and a gripping part 310. The movable arm 308 is used to actuate and operate the treatment end 306. The gripping part 310 is connected to a power source that supplies power for the high-frequency treatment of the treatment device 300. The power source can be wired or wireless. The shaft 304 protects internal wires and components necessary for operating the treatment end 306.

[0042] Figure 2 This is a diagram of a disposal end 306 including upper jaw 402 and lower jaw 404. Upper jaw 402 and lower jaw 404 can be used as electrodes for electrically conducting power supplied from the body 302 via shaft 304. When upper jaw 402 and lower jaw 404 are in the closed position, a high-frequency current will be conducted between the jaws, and the conducted high-frequency current will be used to separate or seal any object clamped between the jaws.

[0043] Both the upper jaw 402 and the lower jaw 404 include channels for moving the cutting blade 410, which can also serve as a high-frequency electrode. The upper channel 406 and the lower channel 408 serve as paths for the longitudinal back-and-forth movement of the cutting blade 410 between the base end of the jaws (i.e., the end connected for opening and closing the pivoting jaws) and the distal end of the jaws. Moving the cutting blade 410 back and forth in the channels also serves to open and close the jaws, such as displacing the upper jaw 402 relative to the lower jaw 404, which can be fixedly attached to the body of the disposal end 306. An operating member 412 passes through the shaft 304 and is used to operate the disposal end 306. The operating member 412 can take any suitable form, such as cables and pulleys or other transmission inputs, to control the operation of features of the disposal device 300 and specific features associated with the disposal end 306.

[0044] Figure 3A and Figure 3B The diagram illustrates a joint structure 502 formed between shaft 304 and treatment end 306. The joint structure 502 enables angular manipulation of the treatment end 306, enhancing the usability of the treatment device 300. A disadvantage of the joint structure 502 is that the added complexity in the structure acts as an obstacle for the operating member 410 to pass through and effectively transmit operating motion to the treatment device 300. Figure 3A and Figure 3B The illustration also shows the features of the jaw engagement structure 504, which allows the jaws to open and close during operation.

[0045] Figure 4The upper and lower jaws of the disposal end 306 and their internal structure are illustrated in cross-sectional view, including mechanisms for opening and closing the upper jaw 402 and the lower jaw 404. A cutting blade 410 is connected to a cutting blade member 602 that passes through the shaft 304 and is connected to a slider 604. The slider 604 can be operated by a movable arm 308 or other operating mechanisms such as a motor mechanism. When the upper jaw 402 and the lower jaw 404 are closed, upper channels 406 and lower channels 408 form a space in which the cutting blade 410 moves as the cutting blade member 602 is gradually pushed by the operation of the slider 604. The cutting blade 410 travels within this space and can laterally move back and forth between a first position adjacent to the base of the jaws and a second position at the distal end of the jaws. When an object is located in the space between the upper jaw 402 and the lower jaw 404, the cutting blade 410, passing through the upper channel 406 and the lower channel 408, is used to cut such an object using a blade formed at its distal end. The cutting blade 410 also has features that cooperate with the upper channel 406 and the lower channel 408 to operate using the structural design of the upper channel 406 to close the upper jaw 402, as further described herein. The upper jaw is connected to an upper jaw pull cable 606, which is also connected to a slider 604. In response to the slider 604 pulling the upper jaw pull cable 606, the upper jaw 402 is pulled away from the lower jaw 404 using a pivot point 608 located at the base end of the upper jaw 402. The pulling of the upper jaw pull cable 606 occurs simultaneously with the pulling of the cutting blade member 604, which is used to retract the cutting blade 410.

[0046] Figure 5 This is an internal view illustration of the upper jaw 402 and the lower jaw 404. The I-shaped cutting blade 410 has a downward pushing surface 702 and an upward pushing surface 704 connected to the cutting blade member 602. As the cutting blade 410 passes through the channel, the downward pushing surface 702 and the upward pushing surface 704 contact the corresponding upper surface 706 and lower surface 708 of the upper and lower channels, respectively. The downward pushing surface 702 initially contacts the inclined surface 710 located near the proximal end of the upper surface 706 and gradually slides over the inclined surface 710, thereby gradually pushing the upper jaw 402 downward toward the lower jaw 404 to move the upper jaw 402 toward the lower jaw 404. Although upward, downward, upper, and lower are used herein, it is readily understood that these terms relate to the orientation depicted in the figures, and changes in orientation do not alter the position, operation, and interoperability of the described features.

[0047] Figure 6This is a cross-sectional schematic diagram of the upper jaw 402 and the lower jaw 404, with the jaws in a closed state. The height 802 of the blade portion B of the I-shaped cutting blade 410 is equal to (within manufacturing tolerances) the distance between the upper surface 706 of the upper channel 406 and the lower surface 708 of the lower channel 408 when the upper jaw 402 and the lower jaw 404 are in their closed positions. When the jaws are open, and the cutting blade 410 is initially pushed toward the distal end of the disposal end 306 through the space formed by the lower channel 406 and the upper channel 408, the pushing surface 702 applies a force on the upper surface 706 in a downward direction (i.e., the direction indicated by arrow D). Correspondingly, the pushing surface 704 applies a force on the lower surface 708 in an upward direction (i.e., the direction indicated by arrow U). Arrows D and U on both sides of the blade portion B of the I-shaped cutting blade 410 indicate that these forces can be applied to both sides of the central portion. In some embodiments, the lower jaw 404 is fixed and immovable relative to the body and / or shaft 304 of the handling end 306, while the upper jaw 402 is pushed downward toward the lower jaw 404 using a pivot point 608 located at the base end of the upper jaw 402 until the two jaws close together. In other embodiments, the upper jaw 402 is fixed and immovable relative to the body and / or shaft 304 of the handling end 306, while the lower jaw 404 is pushed upward toward the upper jaw 402 using a pivot point 608 located at the base end of the lower jaw 404 until the two jaws close together.

[0048] Figure 7A and Figure 7B The mechanism for opening and closing the upper jaw 402 relative to the lower jaw 404 is further illustrated. For example... Figure 7A As shown, when the slider 604 pushes the cutting blade member 602, the cutting blade 410 is pushed forward from the proximal end to the distal end of the disposal end 306 (as indicated by the arrow) through the upper and lower channels, closing the upper jaw 402 and the lower jaw 404. The downward pushing surface 702 initially contacts the inclined surface 710 and gradually slides over the inclined surface 710 and the upper surface 704 by pushing the upper jaw 402 down towards the lower jaw 404. Simultaneously, the slider 604 pushes the upper jaw pull line 606 into the shaft 304, creating a relaxed tension in the upper jaw pull line 606. Figure 7B As shown, when the slider 604 pulls back the cutting blade assembly 602, the cutting blade 410 is pulled back and retracted from the distal end to the proximal end of the treatment end 306 via the upper and lower channels (as indicated by arrow R). Simultaneously, the upper jaw pull cord 606 is pulled back by the slider 604, opening the upper jaw 402 using the rotational fulcrum 608 located at the base of the upper jaw 402. The continuous pull force of the pull cord 606 provides sufficient opening strength for the upper jaw 402, enabling the peeling function required by the operator during the treatment process.

[0049] Figure 8A and Figure 8B Another embodiment is illustrated, showing the opening and closing mechanism of the upper jaw 402 relative to the lower jaw 404. For example... Figure 8A As shown, with the upper jaw 402 in the open state, when the cutting blade member 602 is pushed forward toward the distal end of the disposal end 306, the downward pushing surface 702 of the cutting blade 410 will push the upper surface 706 downward, thereby closing the upper jaw 402 toward the lower jaw 404. The downward pushing surface 702 initially contacts the inclined surface 710 and gradually slides over the inclined surface 710 and the upper surface 704 by pushing the upper jaw 402 downward toward the lower jaw 404. On the other hand, the hook member 802 protruding from the cutting blade 410 will pass through the channel formed below the upper surface 702, which is part of the upper channel 406. Figure 8B As shown, when the cutting blade 410 is pulled back by the cutting blade assembly 602, the protruding member 802, which is part of the upper jaw 402, contacts the hook member 804. The pull-back force of the cutting blade 410, together with the rotational movement achieved by the pivot point 806 located at the lower jaw 404, is used to rotate the upper jaw 402 to the open state. The continuous pull-back force of the cutting blade assembly 602 will achieve sufficient opening strength for the upper jaw 402, enabling the peeling function required by the operator during the disposal process. By contacting the protruding member 802, the hook member 804 will also prevent the cutting blade 410 from being pulled back too far into the shaft 304. The resistance of the protruding member 802, felt by the movable handle 308, will notify the operator that the cutting blade 410 has reached the end of its pull-back and will also notify the operator that the jaw 402 will begin to open.

[0050] Figure 9A and Figure 9B Another embodiment is shown, further illustrating the opening and closing mechanism of the upper jaw 402 relative to the lower jaw 404. (See also...) Figure 9A As shown, when the cutting blade component 602 is pushed rearward toward the proximal end of the treatment end 306, the upper part of the cutting blade 410 will contact the protruding component 902. Further rearward pulling of the cutting blade 410, achieved by the rotational movement realized by the pivot point 806 located at the lower jaw 404, will cause the upper jaw 402 to rotate open into the open state. Sufficient opening strength of the upper jaw 402 will be achieved through the continuous pull-back force of the cutting blade component 602, enabling the peeling function required by the operator during the treatment process.

[0051] Figure 10Another embodiment is illustrated, showing the opening and closing mechanism of the upper jaw 402 relative to the lower jaw 404. The cutting blade 410 is pushed forward by the cutting blade member 602 through the upper and lower channels. The downward pushing surface 702 of the cutting blade 410 contacts the inclined surface 1002 and gradually pushes the movable upper channel 1004 downward. Since the movable upper channel 1004 is connected to the upper jaw 404, the downward force, together with the rotational movement of the pivot point 1006, pushes the upper jaw 402 downward toward its closed state. As further explained below, the stop 1008 prevents the movable upper channel 1004 from being pulled back toward the proximal direction of the disposal device 300 when the cutting blade 410 is pulled back to open the upper jaw 402.

[0052] Figure 11A , Figure 11B and Figure 11C The diagram illustrates the upper jaw and lower jaw, and a cross-sectional view of the mechanism by which the upper jaw 402 is closed relative to the lower jaw 404 using a movable upper channel 1004. Figure 11A As shown, when the downward pushing surface 702 of the cutting blade 410 contacts and pushes the inclined portion 1002 downward, the movable upper channel 1004 is subjected to a downward force. Since the movable upper channel 1004 is connected to the top plate 1102 of the upper jaw 402 via the elastic member 1104, the entire upper jaw 402 will move downward using the rotational motion of the pivot point 1006. The movable upper channel 1004 will be pulled downward within the upper jaw 402 using the expansion characteristic of the elastic member 1104, thereby separating from the top plate 1104. The elastic member 1104 can be a spring, a rubber band, or other elastic member that allows for expansion and contraction. Figure 11B As shown, the movable upper channel 1004 is pushed downward by the downward pushing surface 702 of the cutting blade 410, and the elastic member 1104 always maintains the contractile force that transmits the upward bias to the movable upper channel 1004. Figure 11C As shown, when the downward pushing surface 702 of the cutting blade 410 reaches the distal end of the disposal end 306 and the opening 1108 of the movable upper channel 1004, the movable upper channel 1004 will be pulled upward toward the top plate 1102 due to the contraction of the elastic member 1104.

[0053] Figure 12The diagram shows a cross-sectional view of the upper and lower jaws in their closed state. When the upper jaw 402 and lower jaw 404 are in their closed positions, the height 1202 of the blade portion B of the I-shaped cutting blade 410 is equal to (within manufacturing tolerances) the distance between the upper surface 706 of the upper channel 406 and the lower surface 708 of the lower channel 408. The downward pushing surface 702 of the I-shaped cutting blade 410 pushes the displaceable upper channel 1002 downward, away from the top plate 1102 of the upper jaw 402. The elastic member 1104 expands but maintains a contractile force that pulls the movable upper channel upward in the direction of the top plate 1102.

[0054] Figure 13A , Figure 13B and Figure 13C The diagram illustrates a mechanism that uses a movable upper channel 1004 to open the upper jaw 402 relative to the lower jaw 404. (As shown) Figure 13A As shown, when the cutting blade 410 is pulled backward from its distal end away from the disposal end 306, the cutting blade 410 will slide below the movable upper channel 1004 using the opening 1108 and the cutting blade inclined surface 1302 formed on the upper surface of the cutting blade 410. The cutting blade 410 will then slide below the movable upper channel 1002 until the cutting blade inclined portion 1302 contacts the curved surface 1304, which is part of the movable upper channel 1004. The curved surface can have any suitable curved shape, and can use shapes such as semicircular, elliptical, or oval, partially or fully semicircular, elliptical, or oval. Figure 13B As shown, the inclined portion 1302 of the cutting blade contacts the curved surface 1304 and applies force to the curved surface 1304, thereby pushing the displaceable channel 1004 upward. Due to this application of upward force and the rotational movement of the pivot point 1006, the entire upper jaw 402 will open upward. Figure 13C As shown, as the cutting blade 410 continues to be pulled backward in the proximal direction, the inclined portion 1302 of the cutting blade will slide over the curved surface 1304 of the movable upper channel 1004, and the two portions will exchange their positions. The positions of the movable upper channel 1002 and the cutting blade 410 will then return to their original positions. Figure 10 The pre-closed state described herein. By means of the force generated by the continuous movement of the cutting blade component 602, sufficient opening force is applied to the upper jaw 402, achieving the peeling function required by the operator during the disposal process.

[0055] Although the invention has been described in conjunction with preferred embodiments, those skilled in the art will understand that additions, deletions, modifications, and substitutions, not specifically described, may be made without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A processing device comprising: The main body includes a movable handle; A longitudinally extending shaft having a proximal end connected to the body; and The processing end, which can be pivotally engaged with the distal end of the shaft, The processing terminal includes: Movable cutting blade; A jaw structure having a first jaw and a second jaw, the first jaw and the second jaw being connected at their base ends by a joint structure to pivot the first jaw relative to the second jaw, thereby opening and closing the jaw structure; The first channel in the first jaw and the second channel in the second jaw, wherein, when the jaw structure is in the closed state, the first channel and the second channel form a path for the cutting blade to move longitudinally back and forth between the base end and the distal end of the jaw structure in response to a first input at the body; and A component that, in response to a second input force applied at the body, moves the first jaw away from the second jaw. The second input is the movement of the movable handle, and the second input causes the movable cutting blade to retract in a direction from the distal end of the jaw structure toward the base end of the jaw structure.

2. The treatment device according to claim 1, characterized in that, The component that moves the first jaw away from the second jaw in response to the second input force applied at the body is a wire connected to one of the first jaw and the second jaw.

3. The treatment device according to claim 1, characterized in that, The component that responds to the second input force at the body to move the first jaw away from the second jaw is a hook member protruding from the movable cutting blade, combined with a member protruding from one of the first jaw and the second jaw, and during the retraction of the movable cutting blade, the hook member contacts the member protruding from one of the first jaw and the second jaw and applies force to move the first jaw away from the second jaw.

4. The treatment device according to claim 1, characterized in that, The component that moves the first jaw away from the second jaw in response to the second input force at the body is the rear surface of the movable cutting blade, which is combined with a member protruding from one of the first jaw and the second jaw, and during the retraction of the movable cutting blade, the rear surface of the cutting blade contacts the member protruding from one of the first jaw and the second jaw and applies force to move the first jaw away from the second jaw.

5. The treatment device according to claim 1, characterized in that, The component that moves the first jaw away from the second jaw in response to the second input force at the body is an inner top plate connected to one of the first jaw and the second jaw by an elastic member in combination with an inclined surface formed on the movable cutting blade, and during the retraction of the movable cutting blade, the inclined surface engages with a member protruding from one of the first jaw and the second jaw to apply force to move the first jaw away from the second jaw.

6. The treatment apparatus according to claim 5, characterized in that, The elastic component is a spring.

7. The treatment apparatus according to claim 1, characterized in that, The movable cutting blade includes an inclined portion on its surface.

8. The treatment apparatus according to claim 1, characterized in that, A slider is provided between the movable handle and the first jaw and the second jaw.

9. The treatment apparatus according to claim 1, characterized in that, The main body includes a connector connected to a power source capable of supplying power for performing high-frequency processing using the processing device, and at least one of the first jaws and the second jaws serves as a high-frequency electrode.

10. The treatment apparatus according to claim 1, characterized in that, The movable cutting blade is a different cylindrical electrode compared to at least one of the first jaws and the second jaws.

11. The treatment apparatus according to claim 1, characterized in that, A engagement structure is provided between the shaft and the first jaw and the second jaw.

12. The treatment apparatus according to claim 11, characterized in that, The engagement structure includes at least a pulley or a connecting rod.

13. A treatment apparatus comprising: The main body includes a movable handle; A longitudinally extending shaft having a proximal end connected to the body; and The processing end, which can be pivotally engaged with the distal end of the shaft, The processing terminal includes: Movable cutting blade; and A jaw structure having a first jaw and a second jaw, the first jaw and the second jaw being connected at their base ends by a coupling structure to pivot the first jaw relative to the second jaw, thereby opening and closing the jaw structure. The movable cutting blade includes: The downward pushing surface and the upward pushing surface, while moving toward the distal side, clamp the first jaw and the second jaw. The jaws close to form the jaw structure; and A jaw pull cord, which responds to the movement of the movable handle to apply force to pull the first jaw away from the second jaw, and the jaw pull cord causes the movable cutting blade to retract in a direction from the distal end of the jaw structure toward the base end of the jaw structure.

14. The treatment apparatus according to claim 13, characterized in that, The movable cutting blade is connected to the cutting blade assembly, which transmits driving force to close the jaw structure.

15. The treatment apparatus according to claim 14, characterized in that, The jaw cable and the cutting blade assembly are connected to the slider, and the slider is connected to the movable handle.

16. A treatment apparatus comprising: The main body includes a movable handle; A longitudinally extending shaft having a proximal end connected to the body; and The processing end, which can be pivotally engaged with the distal end of the shaft, The processing terminal includes: Movable cutting blade; and A jaw structure having a first jaw and a second jaw, the first jaw and the second jaw being connected at their base ends by a coupling structure to pivot the first jaw relative to the second jaw, thereby opening and closing the jaw structure. The movable cutting blade includes: A downward pushing surface and an upward pushing surface, while moving toward the distal side, simultaneously close the jaw structure by clamping the first jaw and the second jaw. The first jaw has a contact portion that contacts and applies force to the movable cutting blade when the movable cutting blade moves in a direction from the distal end of the jaw structure toward the base end of the jaw structure, causing the first jaw to move away from the second jaw. The movable cutting blade is retracted in the direction from the distal end of the jaw structure toward the base end of the jaw structure by the movement of the movable handle.

17. The treatment apparatus according to claim 16, characterized in that, The movable cutting blade includes a hook member that contacts the contact portion.

18. The treatment apparatus according to claim 16, characterized in that, The first jaw is provided with an inclined surface that contacts the downward pushing surface.

19. The treatment apparatus according to claim 16, characterized in that, The movable cutting blade is connected to the cutting blade assembly, which transmits driving force to open and close the jaw structure.

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