Transducers for super-electric hybrid energy platforms

Abstract

The embodiment of the present disclosure provides a transducer suitable for a super-electric hybrid energy platform, comprising: an inner core and an outer shell, two electrodes respectively connected to a high-frequency current circuit, and an elastic kit, a first fixing member, a second fixing member, and a third fixing member. The technical solution of the present disclosure uses the inner core and the outer shell of the transducer to connect the high-frequency current circuit. On the basis of not changing the inner core of the original ultrasonic transducer, the transducer structure adopted can fix the inner core in the outer shell, while achieving good insulation performance between the inner core and the outer shell, and is also convenient for assembly. The transducer obtained by this technical solution can be applied to various application scenarios of the super-electric hybrid energy platform, and has the beneficial effect of stable and reliable performance.

Description

Technical Field

[0001] The present disclosure relates to the field of medical transducers, and more particularly, to a transducer suitable for a super-electric hybrid energy platform. Background Art

[0002] The ultrasonic scalpel used in surgery is an ultrasound-based surgical instrument that converts ultrasonic signals into mechanical vibrations through an ultrasonic transducer and is commonly used for tissue cutting. The high-frequency electroscalpel (also known as the electroscalpel) is also a commonly used surgical instrument, often used to seal blood vessels and requires high-frequency electrical energy to operate. The ultrasonic electroscalpel (also known as the superscalpel) combines the advantages of both ultrasonic and electroscalpels, helping to improve surgical outcomes.

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

[0004] The ultrasonic energy conversion device suitable for the super-electric hybrid energy platform, also known as the ultrasonic transducer (hereinafter referred to as the transducer), not only needs to convert the ultrasonic energy that drives the ultrasonic knife function (such as ultrasonic current with a frequency of 55kHz) into mechanical vibration and then transmit it to the front-end operating part, but also serves as a necessary channel between the instrument and the equipment. It also needs to realize other functions such as transmitting high-frequency energy (such as high-frequency current with a frequency of 470kHz) to the front-end operating part as needed, and transmitting some signals generated by the instrument end for control or detection back to the device end.

[0005] In some surgical applications of ultrasonic hybrid energy, the transducer's inner core and outer shell must be connected to the high-frequency electrical energy circuit to form a high-frequency current loop. In this case, good insulation performance must be ensured between the transducer's inner core and outer shell, and the transducer's outer shell should minimize contact area with the inner core. However, this structure reduces the inner core's securement, and during operation, the inner core and outer shell may collide with each other, generating noise and affecting insulation, posing a safety risk. On the other hand, to reduce improvement costs and ensure stable ultrasonic performance, changes to the inner core structure must also be minimized.

[0006] In this case, the transducer suitable for the super-electric hybrid energy platform needs to redesign the internal structure of the transducer to solve the above problems. Summary of the Invention

[0007] In order to solve the problems in the related art, the present disclosure provides an energy converter suitable for a super-electric hybrid energy platform, including:

[0008] The inner core has an annular flange, a conductive rod at the front end and an ultrasonic generator at the rear end, and the inner core is a conductor;

[0009] An outer shell is used to accommodate the inner core, wherein an annular inner wall flange is provided at the middle of the inner wall of the outer shell, and the outer shell is a conductor;

[0010] an elastic sleeve wrapped around the outside of the flange to insulate the inner core from the outer shell;

[0011] a first fixing member, provided between one end of the flange and the inner wall flange;

[0012] A second fixing member is sleeved on the front end of the inner core and pressed tightly against one end surface of the elastic sleeve. The second fixing member is connected and fixed to the front end of the outer shell and works together with the first fixing member to fix the inner core in the outer shell.

[0013] a third fixing member, sleeved on the outside of the ultrasonic generator to insulate the ultrasonic generator from the housing;

[0014] When the transducer is powered on, the inner core and outer shell of the transducer are connected to two electrodes of a high-frequency current circuit, and the ultrasonic generator is connected to the ultrasonic current circuit to generate ultrasonic vibrations, thereby outputting high-frequency current and ultrasonic vibrations to the connected surgical instrument.

[0015] According to the transducer of the embodiment of the present disclosure, the second fixing part includes two electrodes, one of which is a metal ring with the same polarity as the outer shell, and the other electrode is a monopolar electrode disk. When the transducer is powered on, the monopolar electrode disk and the metal ring are connected to the signal current circuit.

[0016] According to the transducer of the embodiment of the present disclosure, the transducer further includes an elastic gasket which is squeezed and fixed to one end surface of the elastic sleeve by the second fixing member.

[0017] According to the transducer of the embodiment of the present disclosure, a wire groove for routing the signal wire is further provided on the outer surface of the first fixing member.

[0018] According to the transducer of the embodiment of the present disclosure, the elastic kit wraps the front and rear end surfaces of the flange, and the thickness of the end surface connected to the first fixing space is greater than the thickness of the other end surface.

[0019] According to the transducer of the embodiment of the present disclosure, the thickness of the elastic sleeve between the flange and the housing is 1 mm to 4 mm.

[0020] According to the transducer of the embodiment of the present disclosure, the material of the first fixing member is polyetheretherketone.

[0021] According to the transducer of the embodiment of the present disclosure, the elastic kit is made of fluororubber.

[0022] According to the transducer of the embodiment of the present disclosure, the ultrasonic transducer of the inner core is provided with an electrode connected to an ultrasonic current wire, so that an ultrasonic current driving the ultrasonic generator is obtained when the transducer is powered on.

[0023] According to the transducer of the embodiment of the present disclosure, the bottom of the third fixing member is provided with a wire hole for the signal wire and the ultrasonic current wire to pass through, and a wire coiling rack for fastening the wires.

[0024] According to the technical solution of the disclosed embodiment, the inner core and outer shell of the transducer are connected to a high-frequency current circuit. While maintaining the inner core structure, multiple sets of insulating components are used to ensure the insulation performance of the inner core and outer shell and achieve a secure inner core. This results in a simple structure and easy assembly. The transducer obtained by this technical solution can be applied in various scenarios using superelectric hybrid energy in surgical procedures, and its performance is stable and reliable.

[0025] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0027] Other features, objectives and advantages of the present disclosure will become more apparent through the following detailed description of non-limiting embodiments in conjunction with the accompanying drawings. In the accompanying drawings:

[0028] Figure 1 A schematic structural diagram of an inner core and an outer shell of a transducer provided according to an embodiment of the present disclosure is shown;

[0029] Figure 2 FIG2 shows a schematic diagram of the internal structure of a transducer provided according to an embodiment of the present disclosure;

[0030] Figure 3 A schematic diagram of a component separation structure of a transducer provided according to an embodiment of the present disclosure is shown;

[0031] Figure 4 A schematic structural diagram of an elastic kit according to an embodiment of the present disclosure is shown;

[0032] Figure 5shows a schematic structural diagram of an elastic kit provided according to another embodiment of the present disclosure; and

[0033] Figure 6 A schematic diagram of the external structure of a transducer provided according to an embodiment of the present disclosure is shown.

[0034] Reference numerals:

[0035] 01: Inner core 042: Limiting groove

[0036] 011: Conducting rod 043: Wire guide

[0037] 012: Flange 05: Second fixing piece

[0038] 013: Ultrasonic generator 051: Metal ring

[0039] 0131: Ultrasonic electrode 052: Monopolar electrode disk

[0040] 02: Shell 053: O-ring

[0041] 021: Inner wall flange 06: Elastic gasket

[0042] 022: Limiting flange 07: Third fixing piece

[0043] 03 / 03': Elastic kit 071: Wire hole

[0044] 031: Snap-in notch 072: Wire reel

[0045] 04: First fixing piece 08: Cable connector

[0046] 041: snap-on protrusion 081: cable hole DETAILED DESCRIPTION

[0047] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement them. In addition, for the sake of clarity, parts not related to the description of the exemplary embodiments are omitted in the accompanying drawings.

[0048] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0049] For the scenario of surgical application of super electric hybrid energy, the transducer suitable for super electric hybrid energy platform proposed in the embodiment of the present disclosure is as follows: Figure 1-3 shown.

[0050] First reference Figure 1The structure of the inner core and the internal structure of the outer shell proposed by the technical solution of the embodiment of the present disclosure are described. For the sake of clarity, Figure 1 Other components in the transducer proposed in the embodiment of the present disclosure are not shown.

[0051] Figure 1 In the figure, inner core 01 has a conductive rod 011 at one end, a flange 012 in the middle, and an ultrasonic generator 013 at the other end. Ultrasonic generator 013 is equipped with two ultrasonic electrodes 0131 for connecting to an ultrasonic current circuit, thereby generating ultrasonic energy to drive ultrasonic generator 013. This inner core 01 has a universal structure.

[0052] According to the disclosed embodiment, the central portion of the housing 02 is provided with an annular inner wall flange 021, and the inner wall is also provided with an axial stopper protrusion 022. After assembly, the conductive rod 011 of the inner core 01 will pass through one end of the housing 02. Furthermore, in some embodiments, the transducer also includes a cable connector 08, which is fixedly connected to the other end of the housing 02. This will be described in detail below with reference to the accompanying drawings.

[0053] In the following embodiments, unless otherwise specified, the direction pointed by the conductive rod 011 of the inner core 01 is referred to as “front”.

[0054] Figure 2 The figure shows the internal structure of the assembled transducer. Figure 3 Yes Figure 2 Schematic diagram of the transducer after the components are separated.

[0055] Figure 2 The transducer includes: an inner core 01, an outer shell 02, an elastic kit 03, a first fixing member 04 and a second fixing member 05.

[0056] The front part of the inner core 01 is a conductive rod 011, the middle part is provided with a circumferential flange 012, and the tail part is an ultrasonic generator 013. The inner core 01 is a conductor used to connect an electrode of a high-frequency current circuit.

[0057] The outer shell 02 is a cylindrical structure, and a circumferential inner wall flange 021 is provided in the middle of the inner wall. Figure 1 , in order to more clearly understand the setting mode of the inner wall flange 021. The shell 02 is a conductor, which is used to connect the other electrode of the high-frequency current circuit.

[0058] The elastic sleeve 03 wraps around the flange 012 and has a snap-fit ​​notch 031 at one end. The outer edge of the elastic sleeve 03 contacts the inner wall of the housing 02. In some embodiments, the flange 012 has multiple notches at one end, and the snap-fit ​​notches on the elastic sleeve 03 can be multiple and correspond to each other.

[0059] The first fixing member 04 is located at the end of the flange 012 away from the conductive rod 011. One end of the first fixing member 04 is provided with a snap-fitting protrusion 041, which engages with the snap-fitting notch 031 at one end of the elastic sleeve 03. The other end of the first fixing member 04 abuts against the inner wall flange 021, securing the first fixing member 04 to the center of the inner shell 02 with the inner wall flange 021 as its base support. The outer surface of the first fixing member 04 contacts the inner wall of the outer shell 02, while the inner surface does not contact the inner core 01.

[0060] Second fixing member 05 is located at the end of flange 012 near conductive rod 011 and is connected to outer shell 02, securing inner core 01 within outer shell 02. A through hole is provided in the center of second fixing member 05 for conductive rod 011 to pass through. The connection between second fixing member 05 and outer shell 02 can be by screwing, clamping, welding, or riveting, with screwing being a simple and stable method.

[0061] The elastic sleeve 03 wraps around the flange 012, isolating the inner core 01 from direct contact with the outer shell 02. This provides insulation between the two electrodes when the inner core 01 and the outer shell 02 are connected to a high-frequency current circuit. The elastic sleeve 03 also absorbs some of the noise caused by friction or impact between the inner core 01 and the outer shell 02 during vibration, providing a buffering and noise reduction effect.

[0062] Based on the elastic sleeve 03, the inner core 01 is secured to the outer shell 02 using first and second fixings 04 and 05 on either side of the flange 012, limiting the forward and backward movement of the inner core 01 during operation. The non-contact structure between the first fixing 04 and the inner core 01 facilitates its insertion during assembly. This also increases the creepage distance between the inner core 01 and the outer shell 02, resulting in improved insulation performance.

[0063] Furthermore, according to the embodiment of the present disclosure, the inner wall of the housing 02 is further provided with an axial limiting protrusion 022, which can be combined with Figure 1 , to more clearly understand the arrangement of the limiting protrusion 022. The outer surface of the first fixing member 04 is provided with a limiting groove 042 corresponding to the limiting protrusion 022, which can achieve axial fixation between the first fixing member 04 and the inner wall of the housing 02. To enhance fixation, multiple sets of such limiting arrangements can also be provided.

[0064] The above-mentioned clamping fixation between the first fixing part 04 and the flange 012, as well as the axial fixation between the first fixing part 04 and the outer shell 02, mainly have the following functions: when the transducer is connected to the surgical instrument, the knife rod of the surgical instrument must be fixed to the conductive rod 011 of the inner core 01, usually by screwing. When the knife rod is rotated to connect the transducer, the above-mentioned structure can limit the rotation of the inner core 01, so that the knife rod can be installed on the conductive rod 011.

[0065] Furthermore, according to an embodiment of the present disclosure, the second fixing member 05 may be a split structure composed of two or more components. Figure 3 As shown, the second fixing member 05 includes a metal ring 051 and a monopolar electrode disk 052. The metal ring 051 and the monopolar electrode disk 052 are fixed to the front end of the flange 012, and the monopolar electrode disk 052 is connected to a signal wire extending to the tail of the inner core. In addition, in the sleeve structure of the metal ring 051 and the monopolar electrode disk 052, an O-ring 053 can be set at the connection to achieve a better sealing effect. Figure 3 As shown in , two O-rings 053 are used. The second fixing member 05 can also be an integral component. For example, the second fixing member 05 is a bipolar electrode disk, one electrode of which is connected to the signal wire and the other electrode is connected to the housing 02.

[0066] The second fixing member 05 also has the function of an electrode, such as Figure 3 In the case of the split-type second fixing member 05 shown, the metal ring 051, when connected to the outer shell 02, forms an electrode for the high-frequency current circuit. The monopolar electrode disk 052 is insulated from the inner core 01 and the outer shell 02. The electrodes are connected to signal conductors, which are used to connect to the signal circuits in the surgical instrument to transmit various signals. When the transducer is connected to the surgical instrument, the high-frequency current is conducted from the transducer to the surgical instrument's actuator via the metal ring 051 and the conductive rod 011, performing the function of the high-frequency electrosurgical unit. Therefore, the metal ring 051 can be made of copper with good electrical conductivity and screwed to the front end of the outer shell 02, forming an electrode for the same high-frequency current as the outer shell 02.

[0067] Furthermore, according to an embodiment of the present disclosure, a wire routing groove 043 is provided on the outer surface of the first fixing member 04. The wire routing groove 043 can confine the signal wires within the routing groove, preventing the wires from directly contacting the inner core 01, and reducing the risk of wire aging, damage, or short circuiting due to factors such as heating of the inner core.

[0068] According to an embodiment of the present disclosure, the material of the first fixing member 04 is selected from a high-temperature resistant insulating material, such as polyetheretherketone (PEEK), which is a polymer steel material with good physical and mechanical properties. The material of the elastic kit and the elastic gasket is a high-temperature resistant elastic material, such as fluororubber, silicone, etc. Fluororubber has good performance of withstanding high temperatures of 200°C and is preferred. The insulating part of the second fixing member 05 can be made of the same material as the first fixing member 04. The choice of these materials can adapt to the high-temperature sterilization environment of the transducer during use without affecting the performance of the transducer.

[0069] According to an embodiment of the present disclosure, the transducer further includes an elastic gasket 06, which covers the front end face of the flange 012 and is squeezed and fixed by the second fixing member 05. After the elastic gasket 06 is provided, a sealing effect on the inner core can be further obtained to prevent water vapor from entering the outer shell 02 and affecting the ultrasonic generator 013 of the inner core 01. For example, when the transducer is sterilized by plasma sterilization, ethylene oxide sterilization, liquid immersion sterilization, or sterilization under a high temperature and high pressure environment, the transducer will not fail to work properly due to water entering the transducer or being damp. On the other hand, the elastic gasket will further absorb vibration noise and play a role in buffering and reducing noise.

[0070] According to the embodiments of the present disclosure, the structure of the elastic kit 03 wrapping the flange 012 can be various, for example Figure 4 and Figure 5 The elastic kit 03 shown wraps around two structures of the flange 012. Figure 4 The elastic kit 03 in the figure wraps the front and rear end surfaces of the flange 012. Figure 5 The elastic set 03 ′ only wraps the rear end face and outer edge of the flange 012 . Figure 4 The package structure has a larger creepage distance between the inner core 01 and the outer shell 02, which is more reliable. Figure 5 The package structure is easier to assemble. There is also a third package structure. Figure 4 By slightly adjusting the wrapping structure, the area wrapped around the front end of the flange 012 is reduced, and only a part of the edge is wrapped to ensure that the creepage distance between the two electrodes of the inner core 01 and the outer shell 02 is sufficient. At this time, a good sealing effect can be achieved by combining with the elastic gasket 06.

[0071] In the above-mentioned structures for wrapping the flange 012 with the elastic sleeve 03, the elastic sleeve 03 needs to be insulated from the outer shell 02. Therefore, the thickness of the elastic sleeve 03 wrapped around the flange 012 must meet the insulation requirements. However, the outer edge thickness of the elastic sleeve 03 should not be too large, otherwise it will easily squeeze the edge unevenly during assembly, causing the inner core 01 to tilt, affecting the vibration effect. Therefore, the thickness of the elastic sleeve 03 can be set as follows: the thickness wrapped around the outer edge of the flange 012 (i.e., between the outer edge of the flange 012 and the inner wall of the outer shell 02) is between 1mm and 4mm, for example, 2mm, and the thickness wrapped around the front and rear ends of the flange 012 is set according to needs. Since the portion wrapped around the rear end of the flange 012 is to be engaged with the first fixing member 04, it can be slightly thicker, for example, 3mm, and wrap the entire rear end of the flange 012, while the portion wrapped around the front end can be slightly thinner, for example, 1mm, and the wrapping area can be slightly smaller, for example, only wrapping a portion of the edge of the front end. Such a structure not only has a good fastening effect but also facilitates assembly. Similarly, the thickness of the elastic gasket 06 must also ensure that its elastic compression can support the axial vibration generated by the inner core 01 so that the transducer works normally. For example, the thickness of the elastic gasket 06 can be 3 mm.

[0072] Furthermore, a conductive rod 011 is provided at one end of the inner core 01, and an ultrasonic generator 013 is provided at the other end. The transducer of this disclosed embodiment also includes a third fixing member 07, positioned between the ultrasonic generator 013 of the inner core 01 and the inner wall of the outer shell 02. The third fixing member 07 is positioned outside the ultrasonic generator 013, but does not contact it. A wire hole 071 and a wire winding rack 072 for securing the wires are provided at the bottom of the rear inner sleeve 07. These facilitate the passage and winding of wires within the transducer, thereby reducing the likelihood of wire movement or loosening that could cause contact with the inner core 01. In some embodiments, the wires within the transducer include signal wires connected to the front electrode disk and ultrasonic wires welded to the two ultrasonic electrodes 0131 of the ultrasonic generator. For example, within the inner shell 02, the signal wires are routed along the wire routing groove 042 on the outer surface of the first fixing member and then exit through the wire hole 071 of the third fixing member 07. This isolates and guides the signal wires, preventing them from contacting the inner core or outer shell. At the same time, the ultrasonic wire welded on the ultrasonic electrode 0131 on the ultrasonic generator also passes through the wire hole 071. The ultrasonic wire is used to connect the two electrodes of the ultrasonic current circuit, thereby realizing the ultrasonic current driving the ultrasonic generator 013 to generate mechanical vibration.

[0073] The third fixture 07 is also made of an insulating material, and can be made of the same material as the first fixture 04. The third fixture 07 not only serves as a conductor routing device, but also insulates the ultrasonic generator, preventing contact between the generator's electrodes and the outer casing. This prevents high-voltage breakdown caused by close proximity between the electrodes and the outer casing, thereby improving device stability.

[0074] Furthermore, the transducer according to the embodiment of the present disclosure also includes a cable connector 08. The cable connector 08 is connected and fixed to the housing 02, and is provided with a cable hole 081 for the transmission cable to pass through. The transmission cable is connected to the energy source device in the super-electric hybrid energy platform to realize the transmission of high-frequency current, ultrasonic current and signal current. The cable connector 08 can be made of the same metal material as the housing 02, and it can be directly connected to an electrode of the high-frequency current circuit in the transmission cable, thereby turning the housing 02 into an electrode of the high-frequency current circuit. The cable connector 08 and the housing 02 can be screwed, sleeved or welded.

[0075] When the transducer disclosed in the present invention is connected to a surgical instrument, a high-frequency current is provided to the jaws at the front end of the surgical instrument through the inner core 01 and the outer shell 02. When the jaws clamp the tissue, due to the conductivity of the tissue, a high-frequency current loop is formed at the jaws, realizing the function of a high-frequency electric knife. It can be understood that according to the needs of the surgical operation, in the application scenario of ultra-electric mixed energy, the transducer disclosed in the present invention can be used to mix or alternately transmit ultrasonic energy and high-frequency energy to the surgical instrument. On the other hand, the transducer can also be connected to an ordinary ultrasonic knife to only realize the function of the ultrasonic knife. Therefore, the transducer has a more universal application scenario.

[0076] Figure 6 The figure shows the external structure of a transducer according to an embodiment of the present disclosure. After the inner core 01, outer shell 02, and cable connector 08 are fixedly assembled, only the conductive rod 011 of the inner core 01 is exposed at the front of the transducer. This rod is used to connect and fix with the waveguide rod of the surgical instrument to transmit ultrasonic vibrations. The metal ring 051 of the front fixing member 05 acts as an electrode of the high-frequency current circuit and cooperates with the conductive rod 011 to transmit the high-frequency current to the jaws of the surgical instrument. The monopolar electrode disk 052 of the front fixing member 05 is used to connect to the signal current circuit in the surgical instrument. The cable connector 08 at the rear of the transducer is connected to the transmission cable to achieve electrical connection between the transducer and the super-electric hybrid energy source device.

[0077] The following briefly describes the assembly method of the transducer according to the disclosed embodiment: The elastic sleeve 03 and the first fixing member 04 are sequentially placed on the inner core 01. The inner core 01 is then placed into the outer shell 02, with the first fixing member 04 resting on the inner wall flange 021. The elastic gasket 06, the monopolar electrode disk 052, the metal ring 051, and the O-ring required for the connection are then placed. After the metal ring 051 is screwed and fixed to the outer shell 02, the inner core 01 is also fixed to the outer shell 02. Furthermore, the third fixing member 07 is placed on the rear end of the inner core 01. The wires inside the transducer are passed through the wire hole 071, wound and fixed on the wire reel 072, and connected to the corresponding lines in the cable. Finally, the cable connector 08 is connected and fixed to the outer shell 02 to complete the assembly.

[0078] The above description is merely a preferred embodiment of the present disclosure and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this disclosure.

Claims

1. A transducer suitable for a super-electric hybrid energy platform, characterized in that: include: The inner core has an annular flange, a conductive rod at the front end and an ultrasonic generator at the rear end, and the inner core is a conductor; An outer shell is used to accommodate the inner core, wherein a circumferential inner wall flange is provided at the middle of the inner wall of the outer shell, and the outer shell is a conductor; an elastic sleeve wrapped around the outside of the flange to insulate the inner core from the outer shell; a first fixing member, provided between one end of the flange and the inner wall flange; a second fixing member, which is sleeved on the front end of the inner core and tightly pressed against one end surface of the elastic sleeve; the second fixing member is connected and fixed to the front end of the outer shell, and works together with the first fixing member to fix the inner core in the outer shell; the second fixing member includes two electrodes, one of which is a metal ring with the same polarity as the outer shell, and the other is a monopolar electrode disk; when the transducer is powered on, the monopolar electrode disk and the metal ring are connected to a signal current circuit; a third fixing member, sleeved on the outside of the ultrasonic generator to insulate the ultrasonic generator from the housing; When the transducer is powered on, the inner core and outer shell of the transducer are connected to two electrodes of a high-frequency current circuit, and the ultrasonic generator is connected to the ultrasonic current circuit to generate ultrasonic vibrations, thereby outputting high-frequency current and ultrasonic vibrations to the connected surgical instrument.

2. The transducer according to claim 1, characterized in that The transducer further includes an elastic gasket which is pressed and fixed to one end surface of the elastic sleeve by the second fixing member.

3. The transducer according to claim 1, characterized in that The outer surface of the first fixing member is also provided with a wire groove for routing the wires of the signal current circuit.

4. The transducer according to claim 1, characterized in that The elastic sleeve wraps the front and rear end surfaces of the flange, and the thickness of one end surface connected to the first fixing space is greater than the thickness of the other end surface.

5. The transducer according to claim 1, characterized in that The thickness of the elastic sleeve between the flange and the housing is 1 mm to 4 mm.

6. The transducer according to claim 1, characterized in that The first fixing member is made of polyetheretherketone.

7. The transducer according to claim 1, characterized in that The elastic sleeve is made of fluororubber.

8. The transducer according to claim 1, characterized in that The ultrasonic generator of the inner core is connected to the electrodes of the ultrasonic current circuit, so that an ultrasonic current for driving the ultrasonic generator is obtained when the transducer is powered on.

9. The transducer according to claim 8, characterized in that The bottom of the third fixing piece is provided with wire holes for the wires of the signal current circuit and the ultrasonic current circuit to pass through, as well as a wire coiling rack for fastening the wires.

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