Surgical operating instrument and surgical operating system

Abstract

The invention discloses a surgical operating instrument and a surgical operating system. The surgical operating instrument comprises a handle assembly, a forceps head assembly and a forceps tube assembly. The handle assembly comprises a handle and a trigger, the forceps head assembly comprises a first forceps head and a second forceps head which can relatively pivot to realize opening or closing, and at least one of the first forceps head and the second forceps head is configured to be capable of treating biological tissues. The forceps tube assembly comprises a pull rod and a forceps tube, a second fluid channel is formed between the outer circumferential wall of the pull rod and the inner circumferential wall of the forceps tube, an opening communicated with the second fluid channel is formed in the position, close to the forceps head assembly, of the forceps tube, and the first fluid channel is communicated with the second fluid channel and used for being connected with a fluid conveying device. A fluid passage between the open hole and the fluid conveying device is achieved, instrument switching in the operation process is reduced, the operation efficiency is improved, the operation duration is shortened, and meanwhile the workload of doctors is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to a surgical instrument and a surgical system. Background Art

[0002] At present, minimally invasive surgery occupies an important position in surgical operations, and surgical instruments are commonly used in minimally invasive surgery. In clinical surgical operations, in addition to cutting or electrocoagulation of biological tissues, other instruments are also required to cooperate with other operations. For example, during laparoscopic surgery, the smoke generated by surgical instruments will affect the surgical field of view and interfere with the doctor's operation. Traditional smoke removal methods usually require the use of a puncture device or flushing tube. During the smoke removal process, the surgical operation needs to be interrupted and new instruments need to be introduced to achieve it, thereby reducing the efficiency of the operation. Summary of the invention

[0003] In view of this, the present invention provides a surgical instrument and a surgical system.

[0004] A first aspect of the present invention provides a surgical instrument, comprising:

[0005] A handle assembly, comprising a handle for holding and a trigger capable of moving relative to the handle, wherein the handle is provided with a first fluid channel;

[0006] A forceps head assembly, comprising a first forceps head and a second forceps head, wherein the first forceps head and the second forceps head can be relatively pivoted to achieve opening or closing of the forceps head assembly, and at least one of the first forceps head and the second forceps head is configured to process biological tissue;

[0007] A pliers tube assembly, comprising a pull rod and a pliers tube sleeved outside the pull rod, for connecting the pliers head assembly and the handle. When the trigger moves relative to the handle, the pliers head assembly moves under the action of the pull rod in a motion-coordinated relationship with the trigger, so that the first pliers head and the second pliers head pivot relative to each other;

[0008] A second fluid channel is formed between the outer peripheral wall of the pull rod and the inner peripheral wall of the clamp tube, and an opening connected to the second fluid channel is provided on the clamp tube near the clamp head assembly. The first fluid channel is connected to the second fluid channel and is used to connect to a fluid conveying device to realize a fluid passage between the opening and the fluid conveying device.

[0009] A second aspect of the present invention provides a surgical system, comprising a surgical energy host and the above-mentioned surgical instrument, wherein the surgical energy host is connected to the surgical instrument to provide energy to the surgical instrument.

[0010] It can be seen from the above technical solutions that the surgical instrument proposed by the present invention can realize the discharge of fluid, such as the discharge of smoke generated during surgery, by setting an opening in the clamp tube near the clamp head assembly and realizing the fluid passage between the opening and the fluid delivery device by setting the first fluid channel and the second fluid channel in the instrument. The present application can realize tissue processing and fluid delivery functions through a surgical instrument, reduce instrument switching during surgery, and do not need to introduce new instruments, so there is no need to interrupt the surgical operation, improve surgical efficiency, shorten the operation time, and reduce the workload of doctors. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained like these accompanying drawings without paying any creative work.

[0012] Figure 1 is a schematic structural diagram of a surgical instrument provided in an embodiment of the present invention;

[0013] Figure 2 is a schematic structural diagram of a handle assembly provided in an embodiment of the present invention;

[0014] Figure 3 yes Figure 2 A schematic cross-sectional view of the structure shown;

[0015] Figure 4 is a cross-sectional schematic diagram of a clamp tube assembly near a clamp head assembly provided in an embodiment of the present invention;

[0016] Figure 5 yes Figure 1 A schematic cross-sectional view of the connection between the intermediate connecting structure and the second fluid channel in the horizontal direction;

[0017] Figure 6 yes Figure 1 A schematic cross-sectional view in the vertical direction of the connection between the intermediate connecting structure and the second fluid channel;

[0018] Figure 7 yes Figure 6 A partial enlarged schematic diagram of the structure shown;

[0019] Figure 8 is a schematic structural diagram of a surgical instrument clamp assembly when it is opened according to an embodiment of the present invention, and shows a cross-sectional view of the handle;

[0020] Fig. 9is a schematic structural diagram of a surgical instrument clamp assembly when closed, and shows a cross-sectional view of a handle;

[0021] Fig.10 is a cross-sectional view of a handle of a surgical instrument according to an embodiment of the present invention, showing a deformation mode of a switch structure;

[0022] Fig.11 is a structural schematic diagram of a switch structure in a first state provided by an embodiment of the present invention;

[0023] Fig.12 is a structural schematic diagram of a switch structure in a second state provided by an embodiment of the present invention;

[0024] Fig.13 is a schematic structural diagram of a handle of a surgical instrument provided in an embodiment of the present invention, showing another deformation mode of the switch structure;

[0025] Fig.14 yes Fig.13 A schematic diagram of the structure in which the switch structure in the structure shown is in a first state;

[0026] Fig.15 yes Fig.13 A schematic diagram of the structure in which the switch structure in the structure shown is in the second state;

[0027] Fig.16 yes Fig.13 Schematic diagram of the internal structure of the switch structure in the structure shown.

[0028] Description of reference numerals:

[0029] 100. Surgical instrument; 10. Handle assembly; 11. Handle; 11a. Upper side; 11b. Lower side; 11c. Front side; 11d. Rear side; 111. Main body; 1111. Head; 1112. Tail; 112. Grip; 113. Second limiting flange; 12. Trigger; 121. Connecting part; 122. Operating part; 1221. Inner hole; 123. Rotating shaft; 13. Rotating wheel; 131. Extending part; 132. First limiting ring groove; 133. First limiting flange; 134. Second limiting ring groove; 20. Clamp head assembly; 21. First clamp head; 22. Second clamp head; 30. Clamp tube assembly; 31. Clamp tube; 31a. First insulating tube; 311. Opening; 312. Insulating layer ;313, front section;32, pull rod;32a, second insulating tube;33, second fluid channel;34, connecting seat;40, transfer structure;41, inner cavity;42, first interface;421, first end;422, second end;43, second interface;44, first sealing ring;45, sealing member;45a, second sealing ring;46, limit member;461, blocking portion;462, covering portion;47, abutting portion;50, first fluid channel;51, first section;52, second section;60, switch structure;61, valve body;611, reset member;612, connecting channel;613, first outlet;614, second outlet;62, switch member;63, valve;631, through hole;70, function button. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0032] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0033] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0034] At present, minimally invasive surgery occupies an important position in surgical operations, and surgical instruments are commonly used in minimally invasive surgery. In clinical surgical operations, in addition to the need to cut or electrocoagulate biological tissues, other instruments are also needed to cooperate with other operations. For example, during laparoscopic surgery, energy instruments, such as bipolar electrocoagulation, ultrasonic scalpels and other surgical instruments, will inevitably produce smoke during use. The smoke produced will affect the surgical field of view and interfere with the doctor's operation. Traditional smoke removal methods usually require the use of a puncture device or flushing tube for operation. During the smoke removal process, the surgical operation needs to be interrupted and new instruments need to be introduced to achieve it, thereby reducing the efficiency of the operation.

[0035] Therefore, the present application provides a surgical instrument, in which a first fluid channel and a second fluid channel are arranged for conveying fluid, thereby reducing instrument switching during surgery, improving surgical efficiency, shortening surgery time, and reducing the doctor's workload.

[0036] See also Figure 1-Figure 4 As shown, the embodiment of the present application provides a surgical instrument 100, including a handle assembly 10, a forceps assembly 20 and a clamp tube assembly 30. The handle assembly 10 includes a handle 11 for holding and a trigger 12 that can move relative to the handle 11, and the handle 11 is provided with a first fluid channel 50. The forceps assembly 20 includes a first forceps 21 and a second forceps 22, and the first forceps 21 and the second forceps 22 can pivot relative to each other to realize the opening or closing of the forceps assembly 20, and at least one of the first forceps 21 and the second forceps 22 is configured to be able to process biological tissue. Exemplarily, the surgical instrument 100 proposed in the embodiment of the present application can be a surgical instrument such as bipolar electrocoagulation, a single-stage electrocoagulation with double forceps, an ultrasonic scalpel, a stapler, etc., and the processing of biological tissue can be a processing in which energy is applied to the biological tissue, such as cutting by ultrasonic vibration or coagulation processing by bipolar or single-stage electrocoagulation, etc., or a processing in which no energy is applied to the biological tissue, such as suturing processing by a stapler, etc.

[0037] The clamp tube assembly 30 includes a pull rod 32 and a clamp tube 31 sleeved outside the pull rod 32, which is used to connect the clamp head assembly 20 and the handle 11. The pull rod 32 and the trigger 12 have a motion matching relationship. When the trigger 12 moves relative to the handle 11, the clamp head assembly 20 moves under the action of the pull rod 32 that has a motion matching relationship with the trigger 12, so that the first clamp head 21 and the second clamp head 22 pivot relative to each other, thereby realizing the opening or closing of the clamp head assembly 30; when operating the surgical instrument 100, the operator can hold the handle 11 and extend the clamp head assembly 20 into the lesion site in the human body through the slender clamp tube assembly 30. Then, by operating the trigger 12 to move relative to the handle 11, the clamp head assembly 20 is driven to clamp the biological tissue in the preset area, so that the clamp head assembly 20 can process the biological tissue in the preset area without affecting other tissue areas.

[0038] Among them, a second fluid channel 33 is formed between the outer wall of the pull rod 32 and the inner wall of the clamp tube 31. The clamp tube 31 is provided with an opening 311 connected to the second fluid channel 33 near the clamp head assembly 20. The first fluid channel 50 is connected to the second fluid channel 33 and is used to connect with the fluid conveying device to realize the fluid passage between the opening 311 and the fluid conveying device.

[0039] The surgical instrument 100 proposed in the embodiment of the present application, by setting an opening 311 in the clamp tube 31 near the clamp head assembly 20, and by setting the first fluid channel 50 and the second fluid channel 33 in the instrument to realize the fluid passage between the opening 311 and the fluid delivery device, so that the fluid can be discharged, such as the smoke generated during the operation. The present application can realize tissue processing and fluid delivery functions through a surgical instrument 100, reduce the instrument switching during the operation, and there is no need to introduce new instruments, so there is no need to interrupt the surgical operation, which improves the surgical efficiency, shortens the operation time, and reduces the workload of the doctor.

[0040] Optionally, the fluid delivery device may be at least one of a negative pressure source and a positive pressure source. For example, the negative pressure source may be a fan, or other negative pressure devices capable of generating a negative pressure airflow to discharge the fluid. The positive pressure source may be an input pump, or other power device capable of generating a driving force to deliver the fluid.

[0041] In some usage scenarios, the fluid delivery device includes a first negative pressure source, and the first fluid channel 50 is used to connect to the first negative pressure source to discharge the smoke generated when the forceps head assembly 20 applies energy to the biological tissue through the opening 311. At this time, the fluid passage between the opening 311 and the fluid delivery device can be used to discharge gas to prevent the smoke generated during the operation from affecting the doctor's field of vision.

[0042] In other usage scenarios, the fluid delivery device may include a positive pressure source, and the first fluid channel may also be used to connect to the positive pressure source to drive the cleaning fluid to be output to the forceps head assembly 20 through the opening 311 to clean the biological tissue. Optionally, the fluid delivery device may include a second negative pressure source, and the first fluid channel 50 is used to connect to the second negative pressure source to discharge the waste liquid at the forceps head assembly 20 through the opening 311. In this case, the fluid passage between the opening 311 and the fluid delivery device can be used for the input and / or output of the liquid.

[0043] Exemplarily, the surgical instrument 100 can be a bipolar coagulation forceps, wherein the first forceps 21 and the second forceps 22 are both clamps, the first forceps 21 is connected to the positive pole of a power supply that supplies energy to the surgical instrument 100, and the second forceps 22 is connected to the negative pole of the power supply that supplies energy to the surgical instrument 100, and the first forceps 21 and the second forceps 22 are respectively the positive and negative poles for applying electrical energy to biological tissue for electrocoagulation treatment.

[0044] Of course, the surgical instrument may also be a monopolar electrocoagulation forceps, wherein the first forceps 21 and the second forceps 22 are both clamps, and one of the first forceps 21 and the second forceps 22 is connected to a primary power source that supplies energy to the surgical instrument.

[0045] Of course, the surgical instrument may also be an ultrasonic scalpel, in which case one of the first forceps 21 and the second forceps 22 is a clamp and the other is an ultrasonic scalpel head, which applies ultrasonic vibration to biological tissue to perform operations such as cutting or coagulation.

[0046] Of course, the surgical instrument can also be a stapler, in which the first forceps 21 is a mounting seat for the stapler with suture staples installed, and the second forceps 22 is a cutting knife of the stapler. The stapler can cut biological tissue through the cutting knife and suture the tissue through the suture staples while cutting.

[0047] In some embodiments, Figure 1 and Figure 4 As shown, the pull rod 32 is hinged to the second clamp head 22, and the second clamp head 22 is hinged to the first clamp head 21 through an insulating member, so that the second clamp head 22 can rotate relative to the first clamp head 21. In this embodiment, the clamp tube 31 can be connected to the first clamp head 21 through a connecting seat 34, and the pull rod 32 can drive the second clamp head 22 to rotate relative to the first clamp head 21 when the axial movement is performed, so that the clamp head assembly 20 can be opened or closed. Fig. 9 As shown, taking the example of a doctor controlling the closing of the forceps head assembly 20, when the doctor operates the trigger 12, the trigger 12 drives the pull rod 32 to move in the direction of the handle 11 inside the forceps tube 31, and the moving pull rod 32 pulls the second forceps head 22 hinged thereto, causing the first forceps head 21 and the second forceps head 22 to rotate towards each other and close.

[0048] Optionally, the connection seat 34 can be integrally formed with the clamp tube 31 or separately connected. Exemplarily, only one of the first clamp head 21 and the second clamp head 22 can rotate relative to the other, or both can rotate relative to the other to achieve opening or closing of the clamp head assembly 20.

[0049] As an embodiment, the first clamp head 21 is hinged to the connecting seat 34, and the first clamp head 21 is configured to rotate synchronously when the second clamp head 22 rotates, so as to cooperate with the second clamp head 22 to rotate to open or close the clamp head assembly 20. In this embodiment, the first clamp head 21 can rotate synchronously with the first clamp head 22 to clamp biological tissue.

[0050] Of course, as another embodiment, the first clamp head 21 and the connecting seat 34 can be fixedly connected. In this case, the second clamp head 22 can rotate relative to the first clamp head 21, and the clamp head assembly 20 can also be opened or closed to clamp biological tissue.

[0051] In some embodiments, Figure 4 As shown, the clamp tube 31 is attached with an insulating layer 312 at least at the opening 311, so that when the surgical instrument 100 is in use, the opening 311 is free from leakage, thereby strengthening insulation, avoiding the risk of breakdown, and ensuring electrical safety. In this embodiment, the insulating layer 312 can be a coating applied on the surface of the clamp tube 31, or can be silicone or other insulating materials injected on the surface of the clamp tube 31, so as to prevent the clamp tube 31 from leaking at the opening 311.

[0052] In some embodiments, the clamp tube 31 is electrically connected to the first clamp head 21, and the pull rod 32 is electrically connected to the second clamp head 22, so that at least one of the first clamp head 21 and the second clamp head 22 is configured to apply energy from the surgical energy host to biological tissue. The clamp tube 31 and the pull rod 32 are relatively insulated to ensure electrical safety. Optionally, the outer surface of the clamp tube 31 has a first insulating structure, and the outer surface of the pull rod 32 has a second insulating structure, so that the clamp tube 31 and the pull rod 32 are relatively insulated.

[0053] As an implementation method, Figure 4As shown, the first insulating structure may be a first insulating tube 31a sleeved outside the clamp tube 31, and the first clamp head 21 is connected to the positive electrode of the power supply that supplies energy to the surgical instrument 100 through the clamp tube 31, and the second insulating structure may be a second insulating tube 32a sleeved outside the pull rod 32, and the second clamp head 22 is connected to the negative electrode of the power supply that supplies energy to the surgical instrument 100 through the pull rod 32, so that the first clamp head 21 and the second clamp head 22 can apply energy from the surgical energy host to the biological tissue. The first insulating structure and the second insulating structure are provided to achieve insulation between the clamp tube 31 and the pull rod 32.

[0054] Specifically, since an opening 311 is provided on the clamp tube 31, a hole also needs to be punched at the corresponding position of the first insulating tube 31a. Surgical instruments such as bipolar electrocoagulation and ultrasonic scalpels have compact structures and are prone to breakdown. Conductive body fluids are easily introduced during fluid delivery, causing insulation failure and leading to instrument failure. Therefore, in order to strengthen insulation, the clamp tube 31 can be provided with an insulating layer 312 attached at least at the opening 311 to avoid the risk of breakdown and ensure electrical safety.

[0055] Of course, if the entire outer wall of the clamp tube 31 is attached with an insulating layer 312, there is no need to install the first insulating tube 31a. It can be understood that the second insulating structure outside the pull rod 32 can also be an insulating coating or silicone or other insulating materials injected on the surface of the pull rod 32.

[0056] In some embodiments, the attachment area of ​​the insulating layer 312 on the clamp tube 31 extends from the outer peripheral wall of the opening 311 through the opening 311 to the inner peripheral wall of the opening 311, so as to prevent leakage at the opening 311, thereby strengthening insulation and ensuring electrical safety.

[0057] In some embodiments, Figure 4 As shown, the clamp tube 31 includes a front section 313 close to the clamp head assembly 20, and the opening 311 is provided in the front section 313. The attachment area of ​​the insulating layer 312 extends from the outer peripheral wall of the front section 313 through the opening 311 to the inner peripheral wall of the front section 313 to enhance insulation.

[0058] Optionally, the insulating layer 312 may be attached to the clamp tube 31 only near the opening 311, or the insulating layer 312 may be attached to a section of the clamp tube 31 near the clamp head assembly 20 where the opening 311 is provided, that is, the outer peripheral wall of the front section 313 and the inner peripheral wall near the opening 311. During processing, the front section 313 of the clamp tube 31 can be placed in the spraying area to facilitate processing.

[0059] In some embodiments, Figure 1 and Figure 4As shown, the clamp tube 31 is provided with a plurality of openings 311, and the plurality of openings 311 are arranged in an array on the clamp tube 31. In this embodiment, the fluid delivery efficiency can be improved by providing the plurality of openings 311 arranged in an array.

[0060] Optionally, the plurality of openings 311 may be arranged linearly, rectangularly or rhombus-shaped along the axis of the clamp tube 31, or may be arranged in an array around the clamp tube 31. The plurality of openings 311 are arranged in a compact structure, and can centrally guide the fluid to the second fluid channel 33, thereby improving the fluid delivery efficiency.

[0061] Of course, in other embodiments, the plurality of openings 311 may also be arranged obliquely, or in other arrangements.

[0062] In some embodiments, the shapes of the plurality of openings 311 on the clamp tube 31 may be the same or different. The shape of the openings 311 may be circular, square, diamond or other irregular shapes.

[0063] In some embodiments, the sizes of the plurality of openings 311 on the clamp tube 31 may be the same or different.

[0064] In some embodiments, in the axial direction of the clamp tube 31, the length of the clamp tube 31 covered by the insulating layer 312 may be 2%-20% of the axial length of the clamp tube 31. In this embodiment, if the insulating layer 312 covers an area that is too large, the cost will increase, and if the attachment area is too small, it is difficult to cover a sufficient range. Therefore, the covering area of ​​the insulating layer 312 is set within the above range, while ensuring that it can cover a sufficient range as much as possible and improving electrical safety performance, the covering area is controlled, thereby saving processing costs.

[0065] Exemplarily, the length of the insulating layer 312 covering the clamp tube 31 may be 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19% or 20% of the axial length of the clamp tube 31.

[0066] In some embodiments, the insulating layer 312 may be a coating formed by a thin film deposition process. In this embodiment, the insulating layer 312 may be formed by a thin film deposition process, which can ionize in a vacuum and then combine positive and negative ions to form chemical bonds with strong binding force, centrifugally become atomic particles, and impact the clamp tube 31 through an electric field, and accumulate very densely, so the binding force is strong.

[0067] Exemplarily, thin film deposition processes include physical vapor deposition (PVD) and chemical vapor deposition (CVD). The main methods of physical vapor deposition are: vacuum evaporation, sputtering, arc plasma coating, ion plating and molecular beam epitaxy, while chemical vapor deposition technology is a process that uses gaseous substances to produce chemical reactions and transport reactions on solids to produce solid deposits.

[0068] In other embodiments, the insulating layer 312 may also be a coating formed by a spraying process. In this embodiment, the spraying process includes thermal spraying and cold spraying. Thermal spraying refers to heating and melting the coating material, atomizing it into extremely fine particles with a high-speed airflow, and spraying it onto the surface of the workpiece at a very high speed to form a coating. Cold spraying refers to spraying the coating powder onto the substrate by a supersonic gas-solid two-phase airflow at room temperature or a lower temperature to form a dense coating.

[0069] Exemplarily, when processing the insulating layer 312, the spraying area or the coating area can be limited to the front section 313 of the clamp tube 31 where the opening 311 is provided. The paint or coating material will enter the interior of the clamp tube 31 from the opening 311, so that the outer peripheral wall of the front section 313 of the clamp tube 31, the inner wall of the opening 311 and the inner peripheral wall of the front section 313 near the opening 311 can all be adhered with the insulating layer 312 to enhance insulation.

[0070] Of course, in other embodiments, the insulating layer 312 may also be formed by other processes, such as coating, dipping, spraying, brushing, drying, melting, laser curing, UV curing, anodizing, electroplating, thick film high-speed oxygen flame plasma and other suitable material application techniques. The processing technology used can form the insulating layer 312 on the surface of the clamp tube 31 to enhance insulation. The coating can be completed by one or more constructions.

[0071] In some embodiments, the thickness of the insulating layer 312 is 1 μm-200 μm. When the insulating layer 312 is a coating formed by a thin film deposition process, the thickness of the insulating layer 312 is 1 μm-10 μm. Exemplarily, the thickness of the insulating layer 312 may be 1 μm, 2 μm, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm or 10 μm. When the insulating layer 312 is a coating formed by a spraying process, the thickness of the insulating layer 312 is 10 μm-200 μm. Exemplarily, the thickness of the insulating layer 312 may be 10 μm, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, 110 μm, 120 μm, 130 μm, 140 μm, 150 μm, 160 μm, 170 μm, 180 μm, 190 μm or 200 μm.

[0072] In some embodiments, the material of the insulating layer 312 includes but is not limited to at least one of polytetrafluoroethylene (PTFE) and diamond-like carbon (DLC). In this embodiment, the insulating layer 312 is made of polytetrafluoroethylene, which has the characteristics of corrosion resistance and wear resistance, and the insulating layer 312 is made of diamond-like carbon, which has the excellent properties of diamond and graphite, and has high hardness, high resistivity, good optical properties and excellent tribological properties.

[0073] It should be noted that the surgical instrument 100 of the present application is not limited to the use of the clamp tube 31 and the pull rod 32 for conduction. For example, in some other embodiments, the clamp tube 31 and the pull rod 32 are insulated, and the surgical instrument 100 may also include a first wire and a second wire, the first wire is electrically connected to the first clamp head 21, and the second wire is electrically connected to the second clamp head 22, so that at least one of the first clamp head 21 and the second clamp head 22 is constructed to be able to apply energy from the surgical energy host to biological tissue.

[0074] Exemplarily, the first wire and the second wire can be routed in the second fluid channel 33 , so as to rationally utilize the space and reduce the volume of the surgical instrument 100 .

[0075] For example, in some other embodiments, the pull rod 32 includes a first conductive unit and a second conductive unit that are independent of each other, the first conductive unit is electrically connected to the first clamp 21, and the second conductive unit is electrically connected to the second clamp 22, so that at least one of the first clamp 21 and the second clamp 22 is configured to apply energy from the surgical energy host to biological tissue.

[0076] In some embodiments, Figure 3 , Figure 5-Figure 7 As shown, the surgical instrument 100 further includes a transfer structure 40, which is used to seal and connect the first fluid channel 50 and the second fluid channel 33 to achieve a fluid passage between the opening 311 and the fluid delivery device. In this embodiment, the setting of the transfer structure facilitates the connection between the first fluid channel 50 and the second fluid channel 33 to achieve fluid delivery.

[0077] In some embodiments, Figure 5-Figure 7As shown, the transfer structure 40 includes an inner cavity 41 and a first interface 42 and a second interface 43 connected to the inner cavity 41. The first interface 42 is used to seal the inner cavity 41 and the first fluid channel 50, and the second interface 43 is used to seal the inner cavity 41 and the second fluid channel 33. In this embodiment, the above arrangement can guide the fluid entering the second fluid channel 33 to enter the inner cavity 41 through the second interface 43, and enter the first fluid channel 50 through the first interface 42 and be discharged through the negative pressure source, or guide the fluid input through the positive pressure source to enter through the opening 311, so as to prevent fluid leakage.

[0078] In some embodiments, Figure 1 , Figure 5 and Figure 6 As shown, the handle assembly 10 further includes a rotating wheel 13, which is sleeved on one end of the clamp tube 31 away from the clamp head assembly 20, and the rotating wheel 13 can drive the clamp tube 31 to rotate coaxially. The rotating wheel 13 has an extension portion 131, and the pull rod 32 extends out of the clamp tube 31 and passes through the extension portion 131 and the adapter structure 40, and the second interface 43 is sealed and connected to the extension portion 131, so that the second fluid channel 33 is connected to the inner cavity 41. In this embodiment, the setting of the rotating wheel 13 can facilitate the doctor to adjust the angle of the clamp head assembly 20, and at the same time, the extension portion 131 is sealed and connected to the second interface 43, so that the rotation of the rotating wheel 13 will not affect the input or discharge of the fluid.

[0079] In some embodiments, the adapter structure 40 is integrally formed with the handle 11. In this embodiment, the adapter structure 40 can be integrally formed with the handle 11, so that the adapter structure 40 is structurally stable.

[0080] Of course, in other embodiments, the adapter structure 40 may also be processed separately and installed on the handle 11. Specifically, it may be installed inside the handle 11 and connected to the extension portion 131 of the rotating wheel 13 by means of a snap connection and / or a threaded connection and / or an interference fit connection, or it may be directly placed inside the handle 11 and connected to the extension portion 131 of the rotating wheel 13, thereby facilitating the disassembly of the adapter structure 40.

[0081] Exemplarily, the rotating wheel 13 is rotatably disposed on the handle 11 and is located at one end of the clamp tube 31 away from the clamp head assembly 20. When the rotating wheel 13 drives the clamp tube 31 to rotate under the action of external force, the adapter structure 40 is fixed in position and does not rotate therewith, so as to facilitate the doctor to adjust the angle of the clamp head assembly 20 without affecting the input or discharge of the fluid.

[0082] For example, Figure 6As shown, the length of the clamp tube 31 extending into the handle 11 may be less than the length of the extension portion 131 extending into the handle 11, and the gap formed between the part of the outer wall of the extension portion 131 and the inner wall of the extension portion 131 after the pull rod 32 extends out of the clamp tube 31 also belongs to the second fluid channel 33. Of course, the end of the clamp tube 31 extending into the handle 11 may also be flush with the end of the extension portion 131.

[0083] In some embodiments, the second interface 43 is elastically abutted against the extension portion 131, so that when the rotating wheel 13 rotates, the second interface 43 maintains a sealed fit with the extension portion 131. In this embodiment, the above arrangement is adopted to achieve that when the rotating wheel 13 rotates, the second interface 43 can maintain a sealed fit with the extension portion 131, maintain air tightness, and will not affect the rotation of the rotating wheel 13. Moreover, the friction force can form a damping effect, so that the angle of the clamp head assembly 20 can be adjusted conveniently.

[0084] In some embodiments, Figure 6 and Figure 7 As shown, one of the second interface 43 and the extension portion 131 is sleeved on the other of the second interface 43 and the extension portion 131 to achieve a sealed fit between the second interface 43 and the extension portion 131. In this embodiment, the second interface 43 can be sleeved on the extension portion 131 (such as Figure 7 As shown), the extension portion 131 may also be sleeved on the second interface 43 to facilitate a sealed connection between the two, thereby maintaining airtightness.

[0085] In some embodiments, at least one of the second interface 43 and the extension portion 131 is an elastic structure. In this embodiment, the second interface 43 can be set as an elastic structure, or the extension portion 131 can be set as an elastic structure, so that the second interface 43 and the extension portion 131 can achieve interference fit through elastic abutment to form a seal.

[0086] It should be noted that the second interface 43 or the extension portion 131 may not be configured as an elastic structure, but may be a hard structure to improve structural strength and stability. For example, in other embodiments, Figure 6 and Figure 7 As shown, the adapter structure 40 further includes a first sealing ring 44, and the second interface 43 elastically abuts against the extension portion 131 through the first sealing ring 44. In this embodiment, the second interface 43 is a hard structure, and the first sealing ring can be made of elastic material to achieve elastic abutment between the inner circumferential wall of the second interface 43 and the outer circumferential wall of the extension portion 131 to form a seal.

[0087] In some embodiments, Figure 6 and Figure 7As shown, the adapter structure 40 further includes a sealing member 45, the pull rod 32 is disposed through the adapter structure 40 and extends from the sealing member 45 to be associated with the trigger 12 in motion, and the sealing member 45 is in sealing cooperation with the pull rod 32. In this embodiment, the provision of the sealing member 45 can prevent the fluid from leaking from the gap between the adapter structure 40 and the pull rod 32 disposed through the adapter structure 40.

[0088] In some embodiments, the seal 45 is an elastic structure, and the transition structure 40 is sealed with the rod 32 through the seal 45 set as an elastic structure, so that the rod 32 maintains airtightness with the transition structure 40 when it moves along the axial direction of the clamp tube 31. In this embodiment, the seal 45 can be integrally formed with the transition structure 40, and the transition structure 40 as a whole can be an elastic structure. Of course, the seal 45 can also be installed in a separate component of the transition structure 40. In this case, the transition structure 40 is a hard structure to improve the structural strength and stability.

[0089] Exemplarily, the hard structure mentioned in the embodiments of the present application may be hard plastic, hard metal or the like, and the elastic material may be silicone, TPE, TPU, PVC, rubber or the like.

[0090] In some embodiments, Figure 6 and Figure 7 As shown, when the transition structure is a hard structure, the sealing member 45 can be a second sealing ring 45a, and the transition structure 40 further includes a stopper 46. The second sealing ring 45a is sleeved on the pull rod 32 so that the pull rod 32 and the transition structure 40 form a sealed fit. The stopper 46 is used to limit the displacement of the second sealing ring 45a in the axial direction of the clamp tube 31 to prevent the second sealing ring 45a from moving with the pull rod 32 when the pull rod 32 moves axially along the clamp tube 31. In this embodiment, the second sealing ring 45a can be a sealing rubber ring, and the second sealing ring 45a is provided to achieve elastic contact between the pull rod 32 and the transition structure 40 to form a seal. Since the pull rod 32 moves axially along the clamp tube 31, in order to prevent the second sealing ring 45a from moving therewith, the stopper 46 is provided to prevent the second sealing ring 45a from shifting and affecting the air tightness.

[0091] In some embodiments, Figure 6 and Figure 7As shown, the transition structure 40 is further provided with an abutting portion 47 and a hollow area for accommodating the second sealing ring 45a, the inner cavity 41 is separated from the hollow area by the abutting portion 47, the abutting portion 47 is used to abut the side of the second sealing ring 45a facing the inner cavity 41, and the limiting member 46 is used to be inserted into the hollow area and abut the side of the second sealing ring 45a facing away from the inner cavity 41. In this embodiment, by providing the limiting member 46 and the abutting portion 47, the second sealing ring 45a can be limited between the limiting member 46 and the abutting portion 47, so as to better prevent the second sealing ring 45a from being offset and affecting the air tightness.

[0092] In some embodiments, Figure 6 and Figure 7 As shown, the stopper 46 includes a blocking portion 461, the outer diameter of which is adapted to the hollow area of ​​the transition structure 40, and the blocking portion 461 is used to be inserted into the hollow area of ​​the transition structure 40 and abut against the side of the second sealing ring 45a facing away from the inner cavity 41, and also abuts between the inner peripheral wall of the hollow area and the outer peripheral wall of the pull rod 32. In this embodiment, the setting of the blocking portion 461 can not only limit the second sealing ring 45a to prevent its position from shifting, but also enable a better seal to be formed between the transition structure 40 and the pull rod 32, thereby improving the sealing effect.

[0093] In some embodiments, Figure 6 and Figure 7 As shown, the stopper 46 further includes a cover portion 462 connected to the blocking portion 461, and the cover portion 462 abuts against the periphery of one end of the transfer structure 40 that faces away from the inner cavity. In this embodiment, the setting of the cover portion 462 can facilitate the operation of the doctor, so that the doctor can operate the cover portion 462 to drive the blocking portion 461 to be inserted into or withdrawn from the hollow area of ​​the transfer structure 40, thereby facilitating the disassembly and assembly of the stopper 46.

[0094] In some embodiments, Figure 6 and Figure 7 As shown, a first limiting ring groove 132 can be provided in one of the extension portion 131 and the second interface 43 to accommodate the first sealing ring 44, thereby facilitating the positioning of the first sealing ring 44. When the rotating wheel 13 rotates, the first sealing ring 44 can also maintain elastic contact between the extension portion 131 and the second interface 43 without position displacement.

[0095] In some embodiments, Figure 6 and Figure 7 As shown, the outer peripheral wall of the extension portion 131 is further provided with a first limiting convex edge 133 , and when the second interface 43 is sleeved on the extension portion 131 , the end portion abuts against the first limiting convex edge 133 to play a positioning role.

[0096] In some embodiments, Figure 6 and Figure 7As shown, a second limiting ring groove 134 can be provided on one of the extension portion 131 and the handle 11, and a second limiting convex edge 113 can be provided on the other of the extension portion 131 and the handle 11. The second limiting convex edge 113 is clamped in the second limiting ring groove 134, and the second limiting convex edge 113 can rotate relative to the second limiting ring groove 134, so that the rotating wheel 13 can drive the extension portion 131 to rotate relative to the adapter body 41 without axial position deviation.

[0097] In some embodiments, Figure 6 As shown, the pull rod 32 moves axially under the drive of the trigger 12 to drive the pliers head assembly 20 to open or close, wherein the second interface 43 extends along the axial direction of the pull rod 32, and the extension direction of the first interface 42 is set at an angle to the axial direction of the pull rod 32. In this embodiment, since the pull rod 32 needs to move axially to drive the pliers head assembly 20 to open or close, a space needs to be reserved in the axial direction of the pull rod 32 inside the handle 11 for the axial movement of the pull rod 32. The above arrangement is adopted so that the first interface 42 can be arranged at an angle to avoid the axial area of ​​the pull rod 32, thereby avoiding interference with the axial movement of the pull rod 32, and the idle area inside the handle 11 can be reasonably utilized, and the structure is compact, which is conducive to the miniaturization of the instrument.

[0098] In some embodiments, Figure 7 As shown, the first interface 42 has a first end 421 facing the pliers head assembly 20 and a second end 422 opposite to the first end 421. The first end 421 is connected to the inner cavity 41. In order to adapt to the internal space of the handle 11, the second end 422 is inclined in a direction away from the pull rod 32 and is connected to the first fluid channel 50 extending outside the handle 11.

[0099] In some usage scenarios, such as Figure 2 , Figure 6-Figure 8 As shown, the handle 11 has a main body 111 located at the upper side 11a and a gripping portion 112 located at the lower side 11b in the height direction, the clamp tube assembly 30 is connected to the main body 111, and the second end 422 is tilted toward the gripping portion 112. In this embodiment, the handle 11 has a front side 11c close to the clamp head assembly 20 and a rear side 11d away from the clamp head assembly 20. The second end 422, that is, the end of the first interface 42 away from the clamp head assembly 20, is tilted and extended in a direction away from the gripping portion 112 and connected to the first fluid channel 50, that is, extended obliquely to the rear, while not affecting the axial movement of the pull rod 32, it can also facilitate the guidance of the fluid in the direction of the gripping portion 112. At this time, the first fluid channel 50 can extend out of the gripping portion 112 to communicate with the fluid delivery device, which is convenient for guiding the fluid delivery.

[0100] Of course, in other embodiments, the first interface 42 may also extend in other directions and may be staggered with the pull rod 32 .

[0101] In some embodiments, the first fluid channel 50 is a hose structure, the fluid delivery device is a negative pressure source, one end of the hose structure is connected to the first interface 42, and the other end of the hose structure extends out of the handle 11 and is connected to the negative pressure source, so that the smoke generated when the forceps assembly 20 applies energy to the biological tissue is discharged through the opening 311. In this embodiment, the fluid passage between the opening 311 and the negative pressure source can be used to discharge the smoke generated by the instrument during the operation to prevent the smoke from affecting the doctor's surgical field of view. The first fluid channel 50 adopts a hose structure so that it can be bent and extended in the handle 11, adapt to the internal space of the handle 11, and extend out of the handle 11 at a preset position, so as to facilitate the discharge of smoke generated by the surgical instrument 100.

[0102] In some embodiments, Figure 3 , Figure 8-Figure 10 As shown, one end of the first fluid channel 50 is connected to the second fluid channel 33, and the other end of the first fluid channel 50 extends from the bottom of the handle 11 for holding. In this embodiment, one end of the first fluid channel 50 is connected to the second fluid channel 33 in the main body 111, and the other end of the first fluid channel 50 extends from the bottom of the grip 112. The adapter structure 40 is arranged in the main body 111, and the first fluid channel 50 is extended from the bottom of the grip 112, which will not affect the doctor's operation and make the handle 11 as a whole beautiful and coordinated.

[0103] It should be noted that the extension position of the first fluid channel 50 is not limited to the bottom of the handle 11, and may be any other position on the handle 11 as long as it does not affect the use of the instrument and the doctor's operation.

[0104] In some embodiments, Figure 8-Figure 15 As shown, the surgical instrument 100 also includes a switch structure 60, which is constructed to be able to switch between a first state and a second state and act on the fluid passage between the opening 311 and the fluid delivery device. When the switch structure 60 is in the first state, the fluid passage is in an on state, and when the switch structure 60 is in the second state, the fluid passage is in a closed state. In this embodiment, the on-off of the fluid passage can be adjusted by setting the switch structure 60, so as to help the doctor to quickly control the opening and closing of the fluid delivery. The doctor can control the conduction of the fluid passage when smoke exhaust or other fluid delivery is required to exhaust smoke or deliver other fluids, and can also control the fluid passage to be cut off when smoke exhaust or other fluid delivery is not required, so as to reduce energy consumption and save resources.

[0105] For example, when performing electrocoagulation or cutting operations, that is, when the surgical instrument 100 is in an excited state and produces smoke, the doctor can open the switch structure 60 to open the fluid path, thereby discharging the smoke generated when the surgical instrument 100 is excited. When the operation is completed and no smoke is generated, the switch structure 60 can be closed to cut off the fluid path.

[0106] Optionally, the switch structure 60 may also have a transition state between the first state and the second state, that is, it may gradually switch through the transition state when switching between the first state and the second state. Of course, the switch structure 60 may also have no transition state between the first state and the second state, that is, it may directly switch from the first state to the second state or directly switch from the second state to the first state.

[0107] Optionally, since the first fluid channel 50 is used to connect a fluid delivery device, a switch structure 60 may be provided to act on the first fluid channel 50, so as to conveniently control the opening or closing of the fluid channel by controlling the on-off of the first fluid channel 50. Of course, in other embodiments, the switch structure 60 may also act on other positions of the fluid channel.

[0108] In some embodiments, Figure 8-Figure 12 As shown, the switch structure 60 is provided on the handle 11, and the switch structure 60 includes a valve body 61 and a switch element 62. The valve body 61 is provided on the first fluid channel 50 and built into the handle 11. When the switch structure 60 is in the second state, the valve body 61 is closed to switch the first fluid channel 50 between the on state and the off state. One end of the switch element 62 is connected to the valve body 61, and the other end of the switch element 62 extends out of the housing of the handle 11. One end of the switch element 62 extending out of the housing of the handle 11 is used to receive a force to drive the switch element 62 to move between the first position and the second position relative to the handle 11. When the switch element 62 moves to the first position, the switch structure 60 is driven to switch to the first state, and when the switch element 62 moves to the second position, the switch structure 60 is driven to switch to the second state. In this embodiment, the switch element 62 receives the applied force to drive the valve body 61 to open or close, so that the switch structure 60 switches between the first state and the second state, thereby facilitating the on-off of the first fluid channel 50.

[0109] In some embodiments, Figure 8-Figure 9As shown, the handle 11 has a main body 111 and a gripping portion 112, and the jaw assembly 30 is connected to the main body 111. The trigger 12 includes a connecting portion 121 and an operating portion 122. The connecting portion 121 is rotatably disposed in the main body 111 and interferes with the pull rod 32 in the main body 111, so that when the connecting portion 121 rotates, the pull rod 32 can be driven to move along the axial direction of the jaw assembly 30. The operating portion 122 is located outside the handle 11 and is arranged opposite to the gripping portion 112. The operating portion 122 can be driven by the connecting portion 121 to move closer to or away from the gripping portion 112. Among them, one end of the switch member 62 extending out of the housing of the handle 11 is located on the movement path of the operating portion 122. When the operating portion 122 moves toward the grip portion 112, it acts on the switch member 62 to drive the switch structure 60 to switch to the first state, so that the first fluid channel 50 is in a conducting state. When the operating portion 122 moves away from the grip portion 112, it acts on the switch member 62 to drive the switch structure 60 to switch to the second state, so that the first fluid channel 50 is in a closed state. In this embodiment, through the above-mentioned method, the switch structure 60 is constructed to be able to trigger the opening and closing of the first fluid channel 50 when the trigger 12 moves relative to the handle 11. By linking the switch of the switch structure 60 with the movement of the trigger 12, the doctor can control the switch structure 60 while operating the trigger 12 to drive the forceps assembly 20 to act on the biological tissue, thereby reducing the doctor's operating steps and improving the efficiency of the operation. The valve body 61 can be opened or closed to adjust the opening and closing of the first fluid channel 50. One end of the switch element 62 is connected to the valve body 61, and the other end of the switch element 62 extends out of the handle 11 and is located on the movement path of the trigger 12. When the trigger 12 moves relative to the handle 11 under the drive of external force, it contacts the switch element 62 to trigger the switch element 62 to control the opening or closing of the valve body 61, so that the doctor can control the opening and closing of the fluid delivery more quickly, thereby reducing the doctor's operating steps and improving the efficiency of the operation.

[0110] The connecting portion 121 is the portion of the entire trigger 12 that interferes with the pull rod 32, and the operating portion 122 is the portion extending out of the handle 11 for the doctor to operate. In a specific embodiment, the connecting portion 121 and the operating portion 122 are only used to distinguish the functions of the overall form. In fact, the connecting portion 121 and the operating portion 122 can be an integrally formed structure or two separate parts connected to each other. The functional division description of the connecting portion 121 and the operating portion 122 of the trigger 12 in this specification does not necessarily mean that the connecting portion 121 and the operating portion 122 are two separate parts.

[0111] For example, the connecting portion 121 and the operating portion 122 may be integrally formed, so that the structure of the trigger 12 is more stable and reliable, and is easy to process, thereby reducing the cost of use.

[0112] Alternatively, if Figure 8 and Fig. 9 As shown, the switch member 62 extends out from the side of the gripping portion 112 toward the operating portion 122. When the operating portion 122 is close to the gripping portion 112, it can squeeze the switch member 62 so that the switch member 62 moves to the first position in the direction of being retracted into the handle 11. When the operating portion 122 is away from the gripping portion 112, it can be separated from the switch member 62. At this time, the switch member 62 can move to the second position to trigger the switch member 62 to control the opening or closing of the valve body 61, so that the switch structure 60 switches between the first state and the second state.

[0113] In some embodiments, Fig.11 and Fig.12 As shown, when the operating portion 122 presses the switch member 62 toward the holding portion 112, the valve body 61 is opened by the switch member 62. When the operating portion 122 and the holding portion 112 are separated from the switch member 62, the switch member 62 can be reset to close the valve body 61.

[0114] For example, Figure 8 and Fig. 9 As shown, the pull rod 32 moves along the front-to-back direction of the handle 11, and the trigger 12 is located in front of the gripping portion 112. The gripping portion 112 is used for the doctor to hold. The doctor's palm holds the gripping portion 112, and the finger is placed on the operating portion 122 of the trigger 12 to control the operating portion 122 to perform the spreading operation and the retracting operation. The retracting operation is to control the operating portion 122 to be close to the gripping portion 112, so that the connecting portion 121 can be driven to rotate backward, so as to drive the pull rod 32 to move backward, so that the clamp head assembly 20 is closed. The operating part 122 can clamp the tissue, and at the same time, the operating part 122 can press the switch part 62 to open the valve body 61, so that the first fluid channel 50 is conductive. When the doctor's finger controls the operating part 122 to open the operation, that is, controls the operating part 122 to move away from the gripping part 112, it can drive the connecting part 121 to rotate forward, so as to drive the pull rod 32 to move forward, so that the forceps head assembly 20 is opened. At the same time, the operating part 122 can be away from the switch part 62 to close the valve body 61, thereby cutting off the first fluid channel 50.

[0115] Optionally, an elastic member may also be provided in the handle 11 to reset the pliers head assembly 20 to the open state.

[0116] As an embodiment, the elastic member can be set at the end of the pull rod 32 away from the clamp head assembly 20. In this case, the elastic member can be a compression spring extending axially along the pull rod 32. When the pull rod 32 moves backward to drive the clamp head assembly 20 to close, the spring is squeezed. When the doctor releases the operating part 122 of the trigger 12, the elastic force of the compression spring can act on the pull rod 32, so that the pull rod 32 moves forward to drive the clamp head assembly 20 to reset to the open state.

[0117] As another embodiment, Figure 8-Figure 10 As shown, the elastic member can also be arranged at the hinge point between the connecting portion 121 and the main body portion 111. For example, the connecting portion 121 is hinged to the main body portion 111 through the rotating shaft 123. At this time, the elastic member can be a torsion spring arranged on the rotating shaft 123, or the elastic member can be arranged on the movement path of the connecting portion 121. When the doctor releases the operating portion 122 of the trigger 12, the elastic force of the torsion spring can act on the connecting portion 121, so that the connecting portion 121 drives the pull rod 32 to move forward to drive the forceps head assembly 20 to reset to the open state.

[0118] Optionally, the side of the gripping portion 112 facing the operating portion 122 can be used to limit the extreme position of the operating portion 122 rotating toward the handle 11, so that the forceps assembly 20 can clamp the tissue under an appropriate clamping force to avoid unnecessary damage to the tissue due to excessive clamping force. Of course, other stop structures can also be provided in the gripping portion 112 to limit the extreme position of the operating portion 122 or the connecting portion 121 rotating toward the handle 11.

[0119] Of course, in other embodiments, when the operating portion 122 squeezes the switch element 62 toward the holding portion 112, the valve body 61 is closed by the switch element 62, and when the operating portion 122 and the holding portion 112 are separated from the switch element 62, the switch element 62 can open the valve body 61.

[0120] Alternatively, in other embodiments, it may be configured that when the operating portion 122 squeezes the switch member 62 for the first time, the valve body 61 is opened by the switch member 62 , and when the operating portion 122 squeezes the switch member 62 again, the valve body 61 is closed by the switch member 62 .

[0121] As an implementation method, Fig.11 and Fig.12 As shown, the valve body 61 is the part acting on the first fluid channel 50, and a switch valve provided with a valve 63 can be used. The first fluid channel 50 can be turned on and off by driving the valve 63 to block or conduct the preset position of the first fluid channel 50. At this time, the switch element 62 serves as the part receiving the force, and the force applied from the outside can act on the switch element 62 to switch the switch structure 60 between the first state and the second state, so as to drive the valve 63 to block or conduct the preset position of the first fluid channel 50.

[0122] For example, Figure 8 , Fig. 9 , Fig.11 and Fig.12As shown, the first fluid channel 50 is divided into a first section 51 and a second section 52 by the arrangement of the valve body 61. The first section 51 is communicated with the second fluid channel 33 through the adapter structure 40, and the second section 52 extends out of the handle 11 and is communicated with the fluid delivery device. The valve body 61 can have two interfaces, and the two interfaces of the valve body 61 are respectively connected to the first section 51 and the second section 52. One end of the switch member 62 is connected to the valve 63 in the valve body 61 and can drive the valve 63 to move in the valve body 61. The other end of the switch member 62 extends out of the handle 11 and is located on the movement path of the trigger 12. When the switch member 62 is in the initial state, the valve body 61 is closed. When the trigger 12 is in the initial state, the valve body 61 is closed. When the operating portion 122 of the trigger 12 moves to the gripping portion 112 close to the handle 11, it squeezes the protruding end of the switch member 62 to push the end of the switch member 62 located in the valve body 61 to move to the first position, thereby driving the valve 63 to move to make the valve body 61 conductive, thereby making the first fluid channel 50 conductive. A reset member 611, such as a spring, can be provided in the valve body 61. When the operating portion 122 of the trigger 12 moves to separate from the switch member 62, the reset member 611 can provide elastic force to push the switch member 62 to the second position, so that the switch member 62 drives the valve 63 to reset to close the valve body 61, thereby cutting off the first fluid channel 50.

[0123] As another embodiment, the valve body 61 is the part acting on the first fluid channel 50 and may be a clamping structure. The first fluid channel 50 is clamped or loosened to realize the opening and closing of the first fluid channel 50. At this time, the switch element 62 is the part receiving the force. The force applied from the outside can act on the switch element 62 to drive the valve body to open or close, so as to realize the clamping or loosening of the first fluid channel 50.

[0124] The valve body 61 is the part of the entire switch structure 60 that acts on the fluid passage, and the switch element 62 is the force unit. In a specific embodiment, the valve body 61 and the switch element 62 are only used to distinguish the functions of the overall form. In fact, the valve body 61 and the switch element 62 can be an integrally formed structure or two separate parts connected to each other. The functional division description of the switch structure 60 regarding the valve body 61 and the switch element 62 in this specification is not necessarily understood as the valve body 61 and the switch element 62 are two separate parts. The description of the valve body 61 and the switch element 62 in this specification is only used to explain the switch structure 20, the fluid passage and the force conditions.

[0125] For example, Figure 2 , Figure 3 and Fig.10As shown, the operating portion 122 of the trigger 12 can be in a closed loop state, with an inner hole 1221 for a finger to insert into, and the inner wall of the front side 11c and the inner wall of the rear side 11d of the inner hole 1221 can be provided with an arc structure that fits the finger, so that the doctor's finger can rest against it, thereby facilitating the expansion or retraction operation of the operating portion 122.

[0126] It should be noted that the switch structure 60 installed on the handle 11 may not have a motion matching relationship with the trigger 12. For example, in other embodiments, Fig.10 As shown, the handle 11 has a main body 111 and a gripping portion 112, and the jaw assembly 30 is connected to the main body 111. The trigger 12 includes a connecting portion 121 and an operating portion 122, and the connecting portion 121 and the operating portion 122 can be integrally formed or separately connected. The connecting portion 121 is rotatably arranged in the main body 111, and interferes with the pull rod 32 in the main body 111, so that when the connecting portion 121 rotates, it can drive the pull rod 32 to move along the axial direction of the jaw assembly 30. The operating portion 122 is located outside the handle 11 and is arranged opposite to the gripping portion 112. The operating portion 122 can be driven by the connecting portion 121 to approach or move away from the gripping portion 112. Among them, one end of the switch member 62 extending out of the housing of the handle 11 is located outside the movement path of the operating portion 122. In this embodiment, the switch member 62 can also extend from any position of the housing of the handle 11 outside the movement path of the operating portion 122, as long as it does not affect the use of the instrument and the doctor's operation.

[0127] In some embodiments, Fig.10 As shown, one end of the switch member 62 is connected to the valve body 61, and the other end of the switch member 62 extends out of the side of the handle 11 facing away from the trigger 12. The switch member 62 controls the opening or closing of the valve body 61 under the action of the applied external force. In this embodiment, the switch member 62 can also be arranged on the side of the handle 11 facing away from the trigger 12, so as not to interfere with the operation of the trigger 12.

[0128] In some embodiments, Fig.10 As shown, the handle 11 has a front side 11c facing the forceps assembly 20 and a rear side 11d facing away from the forceps assembly 20 along the extension direction of the pull rod 32, the trigger 12 is located at the front side 11c of the handle 11, and the switch member 62 extends from the rear side 11d of the handle 11. In this embodiment, the trigger 12 is arranged at the front side 11c of the handle 11, which is convenient for the doctor to operate the trigger 12 to open and retract, and the switch member 62 is arranged at the rear side 11d of the handle 11, so as not to interfere with the operation of the trigger 12 and the operation of the surgical instrument 100 by the doctor. When the valve body 61 needs to be opened, the switch member 62 is pressed to deliver the fluid to be discharged.

[0129] In some embodiments, Fig.10As shown, the handle 11 has a main body 111 located at the upper side 11a and a gripping portion 112 located at the lower side 11b in the height direction, the clamp assembly 30 is connected to the main body 111, and the trigger 12 is located at the front side 11c of the gripping portion 112. The main body 111 has a head 1111 located at the front side 11c and a tail 1112 located at the rear side 11d, and the switch 62 extends out of the tail 1112. In this embodiment, the above arrangement is adopted, which not only avoids affecting the doctor's grip on the gripping portion 112 and the operation of the trigger 12, but also facilitates the doctor to press the switch 62 from the tail 1112.

[0130] For example, Figure 5 As shown, in order to reduce the volume of the handle 11, the end of the pull rod 32 is made close to the inner wall of the tail portion 1112. At this time, there is a preset space between the end of the pull rod 32 and the inner wall of the tail portion 1112 so that the pull rod 32 can move backward to drive the pliers head assembly 20 to close. The switch structure 60 and the pull rod 32 are staggered to avoid interfering with the movement of the pull rod 32.

[0131] It should be noted that the switch structure 60 is not limited to being installed on the handle 11. For example, in other embodiments, Fig.13 As shown, one end of the first fluid channel 50 is connected to the second fluid channel 33, and the other end of the first fluid channel 50 extends out of the housing of the handle 11. Among them, the switch structure 60 is arranged on the first fluid channel 50 extending out of the housing of the handle 11. In this embodiment, the switch structure 60 can be independently arranged on the part of the first fluid channel 50 extending out of the handle 11, that is, externally placed on the handle 11, to adjust the on and off of the first fluid channel 50. The switch structure 60 has no contact with the handle 11 and is far away from the doctor's operating position, which can better avoid affecting the doctor's operation of the surgical instrument 100.

[0132] Alternatively, if Figure 13-Figure 15 As shown, the switch structure 60 includes a valve body 61 and a switch member 62. The valve body 61 is arranged on the first fluid channel 50 extending out of the housing of the handle 11. The valve body 61 can be opened or closed to adjust the on-off of the first fluid channel 50. The switch member 62 is connected to the valve body 61, and the switch member 62 is used to receive the force to drive the switch structure 60 to switch between the first state and the second state. In this embodiment, the switch member 62 is constructed to be able to control the opening or closing of the valve body 61 under the action of an external force. The switch structure 60 is placed outside the handle 11, which is convenient for the disassembly, assembly and maintenance of the switch structure 60, and can be far away from the handle 11, so as to be more conducive to avoiding affecting the doctor's operation of the surgical instrument 100.

[0133] In some embodiments, Fig.16As shown, the valve body 61 has a connection channel 612 connected to the first fluid channel 50 and a valve 63 movably arranged in the connection channel 612. The switch member 62 is connected to the valve 63, and the switch member 62 is used to receive the force to drive the valve 63 to move to open or close the connection channel 612, so that the first fluid channel 50 switches between the on state and the off state. In this embodiment, the valve body 61 also has a first outlet 613 and a second outlet 614 connected to the connection channel 612, the first outlet 613 is connected to the first fluid channel 50, and the second outlet 614 is connected to the fluid conveying device, the valve 63 is movably arranged in the connection channel 612, the switch member 62 is connected to the valve body 61 through the valve 63, and the switch member 62 can drive the valve 63 to move under the action of external force to adjust the valve 63 to open or close the connection channel 612, thereby controlling the opening or closing of the valve body 61. Through the above arrangement, it is convenient to control the opening or closing of the connection channel 612 to adjust the on and off of the first fluid channel 50.

[0134] Alternatively, if Fig.16 As shown, the valve 63 may be provided with a through hole 631, and the valve 63 may be rotatably arranged in the connecting channel 612. The switch member 52 is used to receive the force to drive the valve 63 to rotate, that is, the switch member 62 can drive the valve 63 to rotate under the action of an external force, so as to adjust the angle between the penetration direction of the through hole 631 and the penetration direction of the connecting channel 612, thereby adjusting the size of the area of ​​the connecting channel 612 that can be used for fluid to pass through. In this embodiment, the above-mentioned setting method can be used to adjust the relative or misalignment of the through hole 631 and the connecting channel 612, and by adjusting the misalignment angle between the two, the fluid flow that can pass through the connecting channel 612 can be adjusted. Exemplarily, the valve body 61 may adopt a spherical structure or a hemispherical structure of the specific through hole 631 for easy rotation.

[0135] Optionally, when the through hole 631 is parallel to the through hole 612, the switch 62 rotates to the first position, and the connecting channel 612 is fully opened. When the through hole 631 is perpendicular to the through hole 612, the switch 62 rotates to the second position, and the connecting channel 612 is closed. When the switch 62 rotates from the first position to the second position, the area of ​​the connecting channel 612 through which the fluid can pass is gradually reduced. In this embodiment, when the through hole 631 is parallel to the through hole 612, the through hole 631 is opposite to the connecting channel 612, and the connecting channel 612 is fully opened, so that the fluid flow rate that can pass through the connecting channel 612 reaches the maximum. When the through hole 631 is perpendicular to the through hole 612, the through hole 631 is completely staggered with the connecting channel 612, so that the fluid cannot pass through the connecting channel 612, that is, the connecting channel 612 is closed. Through the above arrangement, the connection channel 612 can be adjusted between fully open, partially open and closed states to meet the doctor's usage requirements.

[0136] Optionally, the switch structure 60 disposed on the first fluid channel 50 outside the handle 11 is not limited to the switch structure 60 of Figure 14-16 The embodiment shown in the figure may also be adopted as follows Fig.11 and Fig.12 The embodiment shown, or other embodiments capable of controlling the on-off state of the first fluid channel 50 .

[0137] Optionally, the switch structure 60 provided on the handle 11 is not limited to the following: Fig.11 and Fig.12 The embodiment shown in the figure may also be adopted as follows Figure 14-16 The embodiment shown, or other embodiments capable of controlling the on-off state of the first fluid channel 50 .

[0138] It should be noted that in addition to being able to adjust the on and off of the first fluid channel 50 through the action of external force, that is, through physical contact to control the switch structure 60, the switch structure 60 can also be controlled by a computer program, that is, through existing software to control the opening and closing of the switch structure 60.

[0139] For example, in some other embodiments, the surgical instrument 100 further includes a control module for outputting an electrical signal to the switch structure 60 to drive the switch structure 60 to switch between the first state and the second state. In this embodiment, the switch structure 60 can be set as an electromagnet switch, so that the control module outputs an electrical signal to the electromagnet switch to control the opening and closing of the switch structure 60 to control the on-off of the first fluid channel 50. The control module can be controlled according to an existing computer program without manual operation, thereby improving the doctor's surgical efficiency.

[0140] As an embodiment, the control module includes a monitoring unit and a control unit. The monitoring unit is used to output a signal when it is detected that the surgical instrument 100 is in an excited state. When the surgical instrument 100 is in an excited state, the forceps assembly 20 is controlled to apply energy to the biological tissue. The control unit is used to receive the output signal of the monitoring unit and output an electrical signal to the switch structure 60 to drive the switch structure 60 to switch between the first state and the second state, thereby controlling the on and off of the first fluid channel 50. In this embodiment, the control unit is used to control the opening and closing of the switch structure 60, and the monitoring unit is used to monitor whether the surgical instrument 100 is in an excited state. When the surgical instrument 100 is in an excited state, smoke will be generated. The monitoring unit sends a signal to the control unit, and the control unit controls the switch structure 60 to open so that the first fluid channel 50 is turned on, thereby exhausting the smoke.

[0141] In some embodiments, Figure 1 and Figure 2 As shown, the surgical instrument 100 also includes a function button 70, which can be set on the front side 11c of the handle 11, so that the doctor can trigger the function button 70 with the index finger when holding the handle 11 to control the forceps assembly 20 to apply energy to the tissue in the tissue grasping area, so that the surgical instrument 100 is in an excited state.

[0142] The embodiment of the present application also proposes a surgical system, including a surgical energy host and the above-mentioned surgical instrument 100. The surgical energy host is connected to the surgical instrument 100. In this embodiment, the surgical energy host can provide energy to the surgical instrument 100, can also be used to provide electrical signals to the surgical instrument 100, and can also be used to receive signal feedback from the surgical object and perform relevant analysis. The structure and function of the surgical instrument 100 in the surgical system proposed in the embodiment of the present application are the same as those in the above-mentioned embodiment, and the specific description can be referred to the description of the above-mentioned embodiment, which will not be repeated in this embodiment.

[0143] Those skilled in the art may combine and associate different embodiments or examples and features of different embodiments or examples described in this specification without mutual contradiction.

[0144] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A surgical instrument, characterized in that: include: A handle assembly, comprising a handle for holding and a trigger capable of moving relative to the handle, wherein the handle is provided with a first fluid channel; A forceps head assembly, comprising a first forceps head and a second forceps head, wherein the first forceps head and the second forceps head can be relatively pivoted to achieve opening or closing of the forceps head assembly, and at least one of the first forceps head and the second forceps head is configured to process biological tissue; A pliers tube assembly, comprising a pull rod and a pliers tube sleeved outside the pull rod, for connecting the pliers head assembly and the handle. When the trigger moves relative to the handle, the pliers head assembly moves under the action of the pull rod in a motion-coordinated relationship with the trigger, so that the first pliers head and the second pliers head pivot relative to each other; A second fluid channel is formed between the outer peripheral wall of the pull rod and the inner peripheral wall of the clamp tube, and an opening connected to the second fluid channel is provided on the clamp tube near the clamp head assembly. The first fluid channel is connected to the second fluid channel and is used to connect to a fluid conveying device to realize a fluid passage between the opening and the fluid conveying device.

2. The surgical instrument according to claim 1, characterized in that: The surgical instrument further comprises: The transition structure is used to seal and connect the first fluid channel and the second fluid channel to realize a fluid passage between the opening and the fluid delivery device.

3. The surgical instrument according to claim 2, characterized in that: The transition structure includes an inner cavity and a first interface and a second interface connected to the inner cavity. The first interface is used to seal the inner cavity and the first fluid channel, and the second interface is used to seal the inner cavity and the second fluid channel.

4. The surgical instrument according to claim 3, characterized in that: The handle assembly further comprises a rotating wheel, which is sleeved on one end of the clamp tube away from the clamp head assembly, and the rotating wheel can drive the clamp tube to rotate coaxially; The rotating wheel has an extension portion, the pull rod extends out of the clamp tube and passes through the extension portion and the transition structure, and the second interface is sealed and connected to the extension portion so that the second fluid channel is connected to the inner cavity.

5. The surgical instrument according to claim 4, characterized in that: The second interface is elastically in contact with the extension portion, so that when the rotating wheel rotates, the second interface maintains a sealed fit with the extension portion.

6. The surgical instrument according to claim 4, characterized in that: One of the second interface and the extension portion is sleeved on the other of the second interface and the extension portion to achieve sealing cooperation between the second interface and the extension portion.

7. The surgical instrument according to claim 4, characterized in that: At least one of the second interface and the extension portion is an elastic structure, or The transition structure further includes a first sealing ring, and the second interface elastically abuts against the extension portion through the first sealing ring.

8. The surgical instrument according to any one of claims 2 to 7, characterized in that: The transition structure further includes a sealing member, the pull rod is passed through the transition structure and extends from the sealing member to be associated with the trigger movement, and the sealing member is in sealing cooperation with the pull rod.

9. The surgical instrument according to claim 8, characterized in that: The sealing member is an elastic structure, and the transition structure is sealed and matched with the pull rod through the elastic structure, so that when the pull rod moves along the axial direction of the clamp tube, air tightness is maintained between the transition structure and the pull rod.

10. The surgical instrument according to any one of claims 3 to 7, characterized in that: The transition structure also includes a second sealing ring and a limiting member. The second sealing ring is sleeved on the pull rod to form a sealing fit between the pull rod and the transition structure. The limiting member is used to limit the axial displacement of the second sealing ring in the clamp tube to prevent the second sealing ring from moving with the pull rod when the pull rod moves axially along the clamp tube.

11. The surgical instrument according to claim 10, wherein: The transition structure is also provided with an abutment portion and a hollow area for accommodating the second sealing ring. The inner cavity is separated from the hollow area by the abutment portion. The abutment portion is used to abut the side of the second sealing ring facing the inner cavity. The limiting member is used to be inserted into the hollow area and abut against the side of the second sealing ring facing away from the inner cavity.

12. The surgical instrument according to any one of claims 3 to 7, characterized in that: The pull rod moves axially under the drive of the trigger to drive the clamp head assembly to open or close; The second interface extends along the axial direction of the pull rod, and the extension direction of the first interface is arranged at an angle to the axial direction of the pull rod.

13. The surgical instrument according to claim 12, wherein: The first interface has a first end facing the pliers head assembly and a second end opposite to the first end, the first end is connected to the inner cavity, and the second end is inclined in a direction away from the pull rod and connected to the first fluid channel extending outside the handle.

14. The surgical instrument according to any one of claims 3 to 7, characterized in that: The first fluid channel is a hose structure, the fluid delivery device is a negative pressure source, one end of the hose structure is connected to the first interface, and the other end of the hose structure extends out of the handle and is connected to the negative pressure source, so that the smoke generated when the forceps head assembly applies energy to the biological tissue is discharged through the opening.

15. The surgical instrument according to any one of claims 1 to 7, characterized in that: One end of the first fluid channel is communicated with the second fluid channel, and the other end of the first fluid channel extends out from the bottom of the handle for holding.

16. The surgical instrument according to any one of claims 2 to 7, characterized in that: The transfer structure is integrally connected with the handle; or, The adapter structure is snap-connected and / or threadedly connected and / or interference-fitted with the handle.

17. The surgical instrument according to any one of claims 1 to 7, characterized in that: The surgical instrument further comprises: A switch structure, wherein the switch structure is configured to be switchable between a first state and a second state and act on the first fluid channel, wherein the first fluid channel is in an on state when the switch structure is in the first state, and the first fluid channel is in a closed state when the switch structure is in the second state.

18. The surgical instrument according to any one of claims 1 to 7, characterized in that: The clamp tube is attached with an insulating layer at least at the opening, so as to prevent leakage at the opening during use of the surgical instrument.

19. The surgical instrument according to claim 18, wherein: The clamp tube comprises a front section close to the clamp head assembly, the opening is arranged in the front section, and the insulating layer is attached to the outer peripheral wall of the front section and the inner peripheral wall close to the opening.

20. The surgical instrument according to any one of claims 1 to 7, characterized in that: The clamp tube is electrically connected to the first clamp head, the pull rod is electrically connected to the second clamp head, and the clamp tube and the pull rod are relatively insulated; or, The pull rod comprises a first conductive unit and a second conductive unit which are independent of each other, the first conductive unit is electrically connected to the first clamp head, and the second conductive unit is electrically connected to the second clamp head; or, The clamp tube is insulated from the pull rod, and the surgical instrument further comprises a first wire and a second wire, wherein the first wire is electrically connected to the first clamp head, and the second wire is electrically connected to the second clamp head; Such that at least one of the first forceps head and the second forceps head is configured to apply energy from a surgical energy host to biological tissue.

21. A surgical system, characterized in that: include: The surgical instrument according to any one of claims 1 to 20; A surgical energy host is connected to the surgical instrument to provide energy to the surgical instrument.

Images