Surgical instrument, overtube, overtube assembly, and super-electric hybrid energy platform

Abstract

The embodiment of the present disclosure provides a surgical instrument, an outer sleeve, a sleeve assembly and a super-electric hybrid energy platform suitable for the super-electric hybrid energy platform. The surgical instrument comprises a handheld shell, an electrode ring and a first limiting groove arranged in the handheld shell; a conductive slip ring installed in the first limiting groove and electrically connected with the electrode ring; and an operation part fixed to the handheld shell, the operation part comprising a waveguide rod and an outer sleeve sleeved outside the waveguide rod, a cutter head being arranged at a distal end of the waveguide rod, a jaw being connected to a distal end of the outer sleeve, the waveguide rod and the outer sleeve being conductors and being insulated from each other, and an elastic ejector pin being arranged outside the outer sleeve and in contact with an inner wall of the conductive slip ring.

Description

Surgical instruments, outer cannula, cannula assembly, and superelectric hybrid energy platform Technical Field

[0001] This specification relates to the field of medical device technology, and in particular to a surgical instrument, an outer cannula, a cannula assembly, and a superelectric hybrid energy platform. Background Technology

[0002] An ultrasonic scalpel, used in surgery, is a surgical instrument based on ultrasound waves. It converts ultrasonic signals into mechanical vibrations through an ultrasonic transducer and is commonly used for tissue cutting. A high-frequency electrosurgical unit (or simply electrosurgical unit) is also a commonly used surgical instrument, often used for sealing blood vessels, and requires high-frequency electrical energy to operate. An ultrasonic electrosurgical unit (or simply ultrasonic electrosurgical unit) combines the advantages of both ultrasonic scalpels and electrosurgical units, helping to improve surgical outcomes.

[0003] To achieve better surgical results when using ultrasonic electrosurgery, a hybrid ultrasonic-electric energy platform can be constructed. This platform, including surgical instruments, energy transmission lines, transducers involved in energy conversion, electrical connections, and energy source equipment, all require specific design to ensure the safety and stability of the system during operation.

[0004] Ultrasonic energy conversion devices suitable for ultrasonic-electric hybrid energy platforms, also known as ultrasonic transducers (hereinafter referred to as transducers), not only convert the ultrasonic energy (e.g., ultrasonic current with a frequency of 55kHz) driving the ultrasonic scalpel function into mechanical vibrations and transmit them to the tip of the surgical instrument, but also serve as an electrical channel between the surgical instrument and the energy source device. They also need to transmit high-frequency energy (e.g., high-frequency current with a frequency of 470kHz) to the jaws of the surgical instrument as needed, and transmit some control or detection signals generated at the instrument end back to the device end, among other functions.

[0005] When using hybrid electric energy for surgical procedures, high-frequency current needs to be transmitted to the distal end of the operating device, requiring a specially designed energy transmission path. Therefore, the design of its structure is one of the crucial aspects of realizing the application of hybrid electric energy in surgery. Summary of the Invention

[0006] To address the problems in the related technologies, this disclosure provides a surgical instrument, an outer cannula, a cannula assembly, and a superelectric hybrid energy platform.

[0007] One aspect of this disclosure provides a surgical instrument suitable for a superelectric hybrid energy platform, comprising: a handheld housing having an electrode ring and a first limiting groove inside; a conductive slip ring installed in the first limiting groove and electrically connected to the electrode ring; and an operating part fixed to the handheld housing. The operating part includes a waveguide rod and an outer sleeve sleeved outside the waveguide rod. The distal end of the waveguide rod is a cutting head, and the distal end of the outer sleeve is connected to a jaw. Both the waveguide rod and the outer sleeve are conductors and insulated from each other. An elastic pin is provided outside the outer sleeve, and the elastic pin contacts the inner wall of the conductive slip ring. In the state where a transducer is installed, the first electrode of the transducer passes through the electrode ring, is conductive to the waveguide rod, and is fixed. The second electrode of the transducer is conductive to the jaw via the electrode ring, the conductive slip ring, and the outer sleeve. The first and second electrodes are used to transmit high-frequency electrical signals.

[0008] Another aspect of this disclosure provides an outer cannula suitable for energy surgical instruments, the cannula having a proximal end and a distal end opposite to the proximal end for connecting jaws, the distal end having a resilient pin provided on the surface of the proximal end.

[0009] Another aspect of this disclosure provides a cannula assembly suitable for energy surgical instruments, comprising: an outer cannula having a resilient pin at its proximal end and a tongue-shaped portion at its distal end, the tongue-shaped portion having a through hole; an inner cannula disposed inside the outer cannula, the distal end of the inner cannula having a fixing hole; and jaws connected to the inner and outer canns via the through hole and the fixing hole, the jaws being open or closed when the inner cannula is moved.

[0010] Another aspect of this disclosure provides a hybrid electric energy platform comprising: a surgical instrument as described above; a transducer mounted on the surgical instrument, the transducer including a piezoelectric component, a first electrode, and a second electrode; and a host unit electrically connected to the transducer, the host unit including an ultrasonic signal generator and a high-frequency electrical signal generator for providing ultrasonic energy and high-frequency electrical energy to the surgical instrument through the transducer.

[0011] According to the technical solution of the present disclosure, through the design of electrode rings, conductive slip rings and elastic pins, the circuit structure in the surgical instrument can transmit the high-frequency current of the dual electrodes in the transducer to the waveguide rod and the outer sleeve, reducing the risk of poor electrode contact, improving the stability of the connection, and thus improving the safety of the superelectric hybrid surgical operation. Attached Figure Description

[0012] Other features, objects, and advantages of this disclosure will become more apparent from the following detailed description of non-limiting embodiments, taken in conjunction with the accompanying drawings. In the drawings:

[0013] Figure 1 schematically illustrates a superelectric hybrid energy platform applying an embodiment of the present disclosure;

[0014] Figure 2 schematically illustrates a surgical instrument according to an embodiment of the present disclosure;

[0015] Figure 3 schematically illustrates a partial view of a surgical instrument according to an embodiment of the present disclosure;

[0016] Figure 4 schematically shows a partial view of the surgical instrument of this disclosure with the conductive slip ring concealed.

[0017] Figure 5 schematically illustrates the distal ends of the outer sleeve and inner sleeve according to an embodiment of the present disclosure;

[0018] Figure 6 is a schematic diagram after installing the jaws based on Figure 5;

[0019] Figure 7 schematically shows a front view of an elastic ejector pin according to an embodiment of the present disclosure;

[0020] Figure 8 schematically illustrates the outer sleeve, inner sleeve, and near end of the waveguide rod according to an embodiment of the present disclosure;

[0021] Figure 9 is a schematic diagram after installing the knob and conductive slip ring based on Figure 8;

[0022] Figure 10 is a schematic diagram of the component shown in Figure 9 viewed from the axial direction;

[0023] Figure 11 schematically illustrates the interior of a handheld housing according to another embodiment of the present disclosure;

[0024] Figure 12 schematically illustrates a diagram of the outer sleeve according to an embodiment of the present disclosure;

[0025] Figure 13 schematically illustrates a sleeve assembly according to an embodiment of the present disclosure.

[0026] Figure label:

[0027] 100 - Surgical Instruments; 115 - Signal Circuit Board; 123 - Inner Cannula

[0028] 200-Transducer 10-Elastic ejector pin 124-Jaws

[0029] 300-Main Unit 11-Extendable Part 125-Knob

[0030] 110-Handheld housing; 12-Fixing part; 1211-Cutter head

[0031] 111-Electrode ring; 20-Conductive slip ring; 1221-Tongue-shaped part

[0032] 112-First limiting groove; 120-Operating part; 1222-Through hole

[0033] 113-Caliper cable; 121-Waveguide rod; 1231-Fixing hole

[0034] 114 - Third electrode; 122 - Outer tube Detailed Implementation

[0035] In the following, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings to enable those skilled in the art to readily implement them. Furthermore, for clarity, portions unrelated to the description of exemplary embodiments have been omitted from the drawings.

[0036] In this disclosure, it should be understood that terms such as “comprising” or “having” are intended to indicate the presence of features, figures, steps, behaviors, components, parts or combinations thereof disclosed in this specification, and are not intended to exclude the possibility of the presence or addition of one or more other features, figures, steps, behaviors, components, parts or combinations thereof.

[0037] It should also be noted that, unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other. This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] This disclosure provides a surgical instrument suitable for a superelectric hybrid energy platform, comprising: a handheld housing with an electrode ring and a first limiting groove inside; a conductive slip ring installed in the first limiting groove and electrically connected to the electrode ring; and an operating part fixed to the handheld housing. The operating part includes a waveguide rod and an outer sleeve sleeved outside the waveguide rod. The distal end of the waveguide rod is a cutting head, and the distal end of the outer sleeve is connected to a jaw. Both the waveguide rod and the outer sleeve are conductors and insulated from each other. An elastic pin is provided outside the outer sleeve, and the elastic pin contacts the inner wall of the conductive slip ring. When a transducer is installed, the first electrode of the transducer passes through the electrode ring, is connected to the waveguide rod, and is fixed. The second electrode of the transducer is connected to the jaw via the electrode ring, the conductive slip ring, and the outer sleeve. The first and second electrodes are used to transmit high-frequency electrical signals. According to the technical solution of the present disclosure, through the design of electrode rings, conductive slip rings and elastic pins, the circuit structure in the surgical instrument can transmit the high-frequency current of the dual electrodes in the transducer to the waveguide rod and the outer sleeve, reducing the risk of poor electrode contact, improving the stability of the connection, and thus improving the safety of the superelectric hybrid surgical operation.

[0039] The technical solutions provided by the embodiments of this disclosure are described in detail below with reference to the accompanying drawings.

[0040] In surgical procedures employing hybrid electric and ultrasonic energy, the surgical instruments' blades and jaws utilize this energy to perform surgical maneuvers. In some cases, a high-frequency current is generated between the blade and jaws after the tissue is gripped, achieving electrocautery functionality. In other cases, the blade performs only ultrasonic scalpel functionality. Furthermore, sometimes it is necessary to use both electrocautery and ultrasonic scalpel functions simultaneously, distributing the energy between them to better adapt to various complex surgical scenarios.

[0041] Figure 1 schematically illustrates a superelectric hybrid energy platform applying an embodiment of the present disclosure.

[0042] As shown in Figure 1, the ultrasonic-electric hybrid energy platform includes a surgical instrument 100, a transducer 200, and a main unit 300. The transducer 200 is mounted on the surgical instrument 100 and connected to the main unit 300 via a cable. The main unit 300 includes an ultrasonic signal generator and a high-frequency electrical signal generator, used to provide ultrasonic energy and high-frequency electrical energy to the surgical instrument 100 through the transducer 200.

[0043] Figure 2 schematically illustrates a surgical instrument 100 according to an embodiment of the present disclosure.

[0044] As shown in Figure 2, the surgical instrument 100 suitable for the superelectric hybrid energy platform includes a handheld housing 110, a conductive slip ring 20, and an operating part 120.

[0045] First, it should be noted that in the various embodiments described below, the “proximal end” of the operating part, outer sleeve, inner sleeve, or waveguide rod refers to the side of these components that is closer to the handheld housing; the “distal end” refers to the side of these components that is farther away from the handheld housing.

[0046] According to an embodiment of this disclosure, the handheld housing 110 has an electrode ring 111 and a first limiting groove 112 inside. A conductive slip ring 20 is installed in the first limiting groove 112 and is electrically connected to the electrode ring 111, for example, through a ribbon cable 113 as shown in FIG2.

[0047] As shown in Figure 2, the electrode ring 111 can be disposed inside the handheld housing 110 near the transducer, for connection to an electrode of the high-frequency current line in the connected transducer 200. The conductive slip ring 20 can be disposed inside the handheld housing 110 near the operating part 120.

[0048] The operating part 120 is fixed to the handheld housing 110. As shown in Figure 2, the operating part 120 can be installed inside the handheld housing 110 at the end away from the transducer 200. The operating part 120 includes a waveguide rod 121 and an outer sleeve 122 sleeved outside the waveguide rod 121. The distal end of the waveguide rod 121 is a blade 1211, and the proximal end is inside the handheld housing 110, connected to another electrode of the high-frequency current line in the connected transducer 200. For example, the waveguide rod 121 can be screwed to the conductive rod of the connected transducer. The distal end of the outer sleeve 122 is connected to the jaw 124, and the proximal end is provided with a flexible pin 10, which contacts the inner wall of the conductive slip ring 20. The waveguide rod 121 and the outer sleeve 122 are both conductors and are insulated from each other, so that two electrodes of high-frequency current can be formed at the blade and the jaw 124.

[0049] According to the embodiments of this disclosure, the distance between the elastic ejector pin and the proximal end of the outer sleeve can be 0-10mm. Since the outer sleeve needs to extend into the handheld housing, the elastic ejector pin is closer to the proximal end of the outer sleeve, which can reduce the space occupied inside the handheld housing, making the design of other circuits and support structures inside the handheld housing more convenient; or it can save the volume of the handheld housing.

[0050] According to embodiments of this disclosure, the elastic ejector pin 10 can be a spring ejector pin. A spring ejector pin, also known as a probe, is a contact medium for electrical testing and is a high-precision electronic hardware component. The surface of a spring ejector pin is typically gold-plated to improve its corrosion resistance, mechanical properties, and electrical performance. Due to their small size, high precision, and light weight, spring ejector pins are widely used in aviation, aerospace, military communications, military electronics, automotive, vehicle navigation, medical equipment, wireless equipment, and data communication equipment.

[0051] According to an embodiment of this disclosure, the transducer 200 may include a piezoelectric component, a first electrode, and a second electrode. When the surgical instrument 100 is in the installed state with the transducer 200 installed, the first electrode of the transducer 200 passes through the electrode ring 111 and is connected to and fixed to the waveguide rod 121, for example, by screwing. The second electrode of the transducer 200 is connected to the jaw 124 via the electrode ring 111, the conductive slip ring 20, and the outer sleeve 122. The first and second electrodes are used to transmit high-frequency electrical signals.

[0052] When the surgical instrument 100 with the above structure is connected to the transducer 200, the high-frequency current is transmitted to the jaws 124 and the blade through the outer sleeve 122 and the waveguide rod 121. At the same time, the waveguide rod 121 can also obtain ultrasonic vibration from the connected transducer 200, so that ultrasonic-electric hybrid surgical operations can be performed at the execution end, which is conducive to obtaining better surgical results.

[0053] Figures 3 and 4 schematically illustrate partially enlarged views of surgical instruments 100 with conductive slip rings and concealed conductive slip rings according to embodiments of the present disclosure.

[0054] As shown in Figures 3 and 4, the proximal end of the operating part 120 extends into the interior of the handheld housing 110. The operating part 120 is provided with a resilient ejector pin 10, specifically, the resilient ejector pin 10 is disposed on the proximal surface of the outer sleeve 122. A conductive slip ring 20 is disposed outside the resilient ejector pin 10 and installed in the first limiting groove 112. The tip of the resilient ejector pin 10 contacts the inner wall of the conductive slip ring 20.

[0055] According to an embodiment of this disclosure, the surgical instrument 100 further includes a knob 125 fixed to the outside of the outer sleeve 122 and located at the proximal end of the outer sleeve 122. The knob 125 can at least partially extend into the hand-held housing 110 and is rotatably connected to the hand-held housing. When the knob 125 is rotated, it can drive the outer sleeve to rotate, thereby adjusting the direction of the jaws 124. As shown in FIG4, the end of the knob 124 near the hand-held housing 110 is provided with a receiving groove for accommodating the resilient ejector pin 10.

[0056] According to embodiments of this disclosure, the surgical instrument 100 may further include an inner sheath 123 disposed inside the outer sheath 122.

[0057] Figure 5 schematically shows the distal ends of the outer sleeve 122 and the inner sleeve 123 according to an embodiment of the present disclosure, and Figure 6 is a schematic diagram after installing the jaws 124 based on Figure 5.

[0058] As shown in Figures 5 and 6, the distal end of the inner sleeve 123 may be provided with a fixing hole 1231. The distal end of the outer sleeve 122 has a tongue-shaped portion 1221, on which a through hole 1222 is provided. The jaws 124 are connected to the inner sleeve 123 and the outer sleeve 122 through the through hole 1222 and the fixing hole 1231. When the inner sleeve 123 moves, the jaws 124 are in an open or closed state.

[0059] For example, jaw 124 may have hooks for engaging with fixing holes 1231, and jaw 124 is rotatably connected to the inner sleeve 123. Jaw 124 also has through holes, through which a pin can be inserted to rotatably connect jaw 124 to the outer sleeve 122. Thus, as the inner sleeve 123 moves back and forth, jaw 124 rotates relative to the inner sleeve 123 and the outer sleeve 122 to perform surgical actions.

[0060] Figure 7 schematically shows a front view of the resilient ejector pin 10 according to an embodiment of the present disclosure.

[0061] As shown in Figure 7, the elastic ejector pin 10 includes a fixed portion 12 and a retractable portion 11. The height of the fixed portion 12 is greater than the height of the retractable portion 11 so that the retractable portion 11 can enter the internal space of the fixed portion 12 as much as possible when compressed, thereby increasing the amount of extension. The amount of extension is 80%-95% of the height of the retractable portion 11. For example, the height of the retractable portion 11 can be 0.95 mm, and the amount of extension can be 0.90 mm, in which case the amount of extension is 94.7% of the height of the retractable portion. In the limited space of precision instruments, it is advantageous to maximize the amount of extension.

[0062] According to embodiments of this disclosure, the bottom diameter of the fixing portion 12 is 1mm-3mm, for example, 2mm. The elastic pin 10 can be fixed to the proximal surface of the outer sleeve 122, for example, by arc welding. Since the surface of the outer sleeve 122 is curved, it is easier to achieve fixation by using an elastic pin with a smaller bottom area.

[0063] According to an embodiment of this disclosure, the height of the fixed part 12 is 2mm-3mm, for example, 2.5mm. The telescopic part 11 is made of gold-plated brass, with a height of 0.8mm-1.2mm, for example, 1mm, a diameter of 0.8mm-1.2mm, for example, 0.95mm, and a hemispherical top.

[0064] Figure 8 schematically shows the outer sleeve 122, inner sleeve 123 and the proximal end of waveguide rod 121 according to an embodiment of the present disclosure. Figure 9 is a schematic diagram after installing knob 125 and conductive slip ring 20 on the basis of Figure 8. Figure 10 is a schematic diagram of the components shown in Figure 9 viewed from the axial direction.

[0065] As shown in Figures 8-10, from the inside out, the components are waveguide rod 121, inner sleeve 123, and outer sleeve 122, with elastic pins 10 disposed on the surface of the outer sleeve 122. There can be one or more elastic pins 10; in the embodiment shown in Figures 8-10, two elastic pins 10 are provided at opposite positions on the outer sleeve 122.

[0066] As shown in Figures 9 and 10, the knob 125 is fixed to the outside of the outer sleeve 122. The knob 125 can be fixed to the outer sleeve 122 and the inner sleeve 123 by a pin to prevent relative rotation between the three. The conductive slip ring 20 is set outside the elastic ejector pin 10. Its inner diameter is designed so that the elastic ejector pin 10 cannot be fully extended. In this way, even if the conductive slip ring 20 rotates in the first limiting groove 112, a stable connection between the two can be maintained.

[0067] According to embodiments of this disclosure, the inner surface of the conductive slip ring 20 is provided with a limiting structure to prevent the elastic pin 10 from sliding out of the conductive slip ring 20 from the side, further ensuring the stability of the connection. For example, the radius of the inner wall of the conductive slip ring 20 can vary continuously or in a stepped manner in the width direction, such that the radius of at least one edge is smaller than the radius of the middle portion, to prevent the elastic pin from sliding out of the conductive slip ring from that edge. In some embodiments, the radii of both edges can be smaller than the radius of the middle region, i.e., a second limiting groove is formed in the middle region. In other embodiments, the radius of one edge is smaller than the radius of the other edge, the radius of the middle region can vary continuously, or a stepped structure can be formed, so that the elastic pin will not slide out from one side of the conductive slip ring.

[0068] According to embodiments of this disclosure, the surgical instrument 100 may further include a third electrode and a signal circuit board.

[0069] Figure 11 schematically shows a view of the interior of a handheld housing 110 according to another embodiment of the present disclosure.

[0070] As shown in Figure 11, the third electrode 114 can be a ring-shaped contact electrode. The third electrode 114 can be fixed within the same electrode disk as the electrode ring 111, forming a concentric electrode ring. The shape and position of this electrode disk are designed to match the connected transducer 200. The third electrode 114 can be used to connect to the fourth electrode of the transducer 200 to realize a signal current line. A through hole is located in the center of the electrode disk, allowing the conductive rod of the transducer 200 to pass through and connect to the proximal end of the waveguide rod 121. A conductive slip ring 20 is located at the front of the handheld housing 111, allowing the outer sleeve 122 to connect to the high-frequency current line via the conductive slip ring 20.

[0071] The signal circuit board 115 is located inside the handheld housing 110. The two electrodes of the signal circuit board 115 are connected to the electrode ring 111 and the third electrode 114 respectively to generate signals and communicate with the host 300 through the circuit formed by the third electrode 114 and the electrode ring 111, so as to realize the control and optimization of the surgical process and help improve the surgical results.

[0072] Thus, the ultrasonic vibrations generated by the transducer 200 are transmitted to the waveguide rod 121. One electrode of the high-frequency current line transmits the vibrations to the outer sleeve 122 via the electrode ring 111 and the conductive slip ring 20, and then to the jaws 124. The other electrode of the high-frequency current line transmits the vibrations directly to the blade head 1211 via the waveguide rod 121. One electrode of the signal current line is connected to the signal current board 115 via the electrode ring 111 of the surgical instrument 100. The other electrode of the signal current line is connected to the signal circuit board 115 via the third electrode 114 of the surgical instrument 100.

[0073] According to embodiments of this disclosure, the signal circuit board 115 can be a passive circuit board, and the required power supply current is obtained from the connected transducer 200 through the electrode ring 111 and the third electrode 114. Unlike existing surgical instruments that use switch circuit boards requiring three electrodes, the signal circuit board in this embodiment only needs two electrodes to obtain the power supply current and simultaneously achieve the signal transmission function.

[0074] With the above structure, electrode ring 111 is connected not only to one electrode of the high-frequency current line in transducer 200, but also to one electrode of the signal current line. This shared electrode connection for the high-frequency and signal current lines reduces the number of electrodes in the handle, simplifies its structure, and lowers the risk of poor electrode contact. Since the high-frequency current is typically a high-voltage (e.g., 220V) differential signal, and the signal current is typically a low-voltage (e.g., 12V) level signal, the shared electrode for these two different signal current transmissions keeps crosstalk within acceptable limits, ensuring system safety and stability.

[0075] The surgical instrument according to embodiments of this disclosure may further include an input component. The input component is disposed on the handheld housing 110. A signal circuit board 115 may be located, for example, inside the handheld housing 110 near the input component. The signal circuit board 115 is capable of receiving input commands from the input component and generating a first signal, which is transmitted to the device end via a connected transducer 200.

[0076] The input component can be a push button and / or a slide button, which is contact-connected to the signal circuit board 115. For example, the input component may include two finger buttons for easy pressing with the operator's fingers while holding the device, and a slide button for selecting energy levels. To accommodate the operator's habits, there may be two sets of slide button switches, one on each side of the handle. The input component can also be a touchscreen, electrically connected to the signal circuit board 115. The input component can also be a wireless remote control, wirelessly connected to the signal circuit board 115. The commands input by the input component can be customized as needed. For example, the two finger buttons can be used to select energy levels, while the slide button can be used to select more refined energy modes, such as one energy mode that outputs ultrasound first and then electricity, or another energy mode that outputs a mixture of ultrasound and electricity first and then electricity, and so on.

[0077] According to embodiments of this disclosure, the signal circuit board 115 can also generate a second signal based on detecting the operating status of the operating unit. For example, by detecting the impedance value after the blade and jaws 124 are closed, it can determine whether abnormal wear has occurred at the jaws 124, and thus issue a corresponding prompt message.

[0078] According to embodiments of this disclosure, the surgical instrument 100 may further include an output component disposed on the handheld housing 110, and a signal circuit board 115 may send a second signal to the output component. For example, the output component may be an LED indicator light, and the second signal may indicate to the operator whether the operating unit is functioning normally by illuminating different colored indicator lights, facilitating the operator's fault detection. The output component may also be an audio indicator component, which alerts the operator through different warning sounds, or it may be an indicator component combining audio and light. On the other hand, the second signal detected by the signal circuit board 115 may also be transmitted to the device end, processed by the device end, and used to alert the operator, or used for other performance improvement purposes, which this disclosure does not limit.

[0079] This disclosure also provides an outer sheath suitable for energy surgical instruments, and Figure 12 schematically shows a schematic diagram of an outer sheath 122 according to an embodiment of this disclosure.

[0080] As shown in Figure 12, the outer sleeve 122 has a proximal end and a distal end opposite to the proximal end. The distal end is used to connect to the jaws 124, and a resilient ejector pin 10 is provided on the surface of the proximal end. The resilient ejector pin 10 can be referred to the description in Figure 7 above, and will not be repeated here.

[0081] This disclosure also provides a cannula assembly suitable for energy surgical instruments, and Figure 13 schematically shows a schematic diagram of a cannula assembly according to an embodiment of this disclosure.

[0082] As shown in Figure 13, the sleeve assembly includes an outer sleeve 122, an inner sleeve 123, and jaws 124. Referring to Figures 5-7, the proximal end of the outer sleeve 122 has a resilient ejector pin, and the distal end has a tongue-shaped portion 1221 with a through hole 1222. The inner sleeve 123 is disposed inside the outer sleeve 122, and its distal end has a fixing hole 1231. The jaws 124 are connected to the inner sleeve 123 and the outer sleeve 122 through the through hole 1222 and the fixing hole 1231. When the inner sleeve 123 moves, the jaws 124 are in an open or closed state. The resilient ejector pin 10 can be referred to the description in Figure 7 above, and will not be repeated here.

[0083] This disclosure also provides an ultra-electric hybrid energy platform, as shown in FIG1. ​​The ultra-electric hybrid energy platform includes surgical instruments, a transducer, and a main unit as described in FIGS. 2-11. The transducer 200 is mounted on the surgical instrument 100 and connected to the main unit 300 via a cable. The main unit 300 includes an ultrasonic signal generator and a high-frequency electrical signal generator, used to provide ultrasonic energy and high-frequency electrical energy to the surgical instrument 100 through the transducer 200. The transducer includes a piezoelectric component for energy conversion, and also includes a first electrode and a second electrode for connection to the waveguide rod and electrode ring of the surgical instrument, respectively, to achieve the function of surgical procedures.

[0084] The above description is merely a preferred embodiment of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features disclosed in this disclosure that have similar functions.

Claims

1. A surgical instrument suitable for a superelectric hybrid energy platform, characterized in that, include: The handheld housing has an electrode ring and a first limiting groove inside; A conductive slip ring is installed in the first limiting groove and electrically connected to the electrode ring; and an operating part is fixed to the handheld housing. The operating part includes a waveguide rod and an outer sleeve sleeved outside the waveguide rod. The distal end of the waveguide rod is a cutting head, and the distal end of the outer sleeve is connected to a clamp jaw. The waveguide rod and the outer sleeve are both conductors and are insulated from each other. An elastic pin is provided on the outside of the outer sleeve, and the elastic pin contacts the inner wall of the conductive slip ring. The elastic pin includes a fixed part and a retractable part. The height of the fixed part is greater than the height of the retractable part, and the retraction amount is 80%-95% of the height of the retractable part. The elastic pin is a spring-loaded pin. When the transducer is installed, the first electrode of the transducer passes through the electrode ring and is connected to and fixed to the waveguide rod. The second electrode of the transducer is connected to the jaws via the electrode ring, a conductive slip ring, and an outer sleeve. The first and second electrodes are used to transmit high-frequency electrical signals. The electrode ring is located inside the handheld housing near the transducer and is used to connect to an electrode of the high-frequency current line in the connected transducer. The conductive slip ring is located inside the handheld housing near the operating part and is electrically connected to the electrode ring via a ribbon cable. The elastic pin is fixed to the proximal surface of the outer sleeve by arc welding. The transducer is connected to the main unit, and the main unit provides ultrasonic energy and high-frequency electrical energy to the surgical instruments through the transducer.

2. The surgical instrument according to claim 1, characterized in that, The inner surface of the conductive slip ring is provided with a limiting structure.

3. The surgical instrument according to claim 1, characterized in that, It also includes a knob fixed to the outside of the outer sleeve for adjusting the direction of the jaws. The end of the knob near the hand-held housing has a receiving groove for accommodating the elastic pin.

4. The surgical instrument according to claim 1, characterized in that, Also includes: An inner sleeve is disposed inside the outer sleeve, and a fixing hole is provided at the distal end of the inner sleeve. The distal end of the outer sleeve has a tongue-shaped portion, and a through hole is provided on the tongue-shaped portion. The jaws are connected to the inner sleeve and the outer sleeve through the through hole and the fixing hole. When the inner sleeve moves, the jaws are in an open or closed state.

5. The surgical instrument according to claim 1, characterized in that, The bottom diameter of the fixed part is 1mm-3mm, the height of the fixed part is 2mm-3mm, and the telescopic part is made of gold-plated brass with a height of 0.8mm-1.2mm, a diameter of 0.8mm-1.2mm, and a hemispherical top.

6. The surgical instrument according to any one of claims 1-5, characterized in that, Also includes: The third electrode is a ring electrode and forms a concentric electrode ring with the electrode ring. The third electrode is used to connect with the fourth electrode of the transducer to realize the signal current line. The signal circuit board is located inside the handheld housing and is connected to the third electrode and the electrode ring. It is used to generate signals and communicate with the host through the circuit formed by the third electrode and the electrode ring.

7. A superelectric hybrid energy platform, characterized in that, include: The surgical instrument as claimed in any one of claims 1-6; a transducer installed on the surgical instrument, the transducer comprising a piezoelectric component, a first electrode, and a second electrode; and a host unit electrically connected to the transducer, the host unit comprising an ultrasonic signal generator and a high-frequency electrical signal generator for providing ultrasonic energy and high-frequency electrical energy to the surgical instrument through the transducer.

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