Surgical instruments, cannula assemblies, and super-electric hybrid energy platforms

Abstract

The present disclosure provides a surgical instrument, operating assembly, and super-electric hybrid energy platform. The surgical instrument includes: a handheld housing; an outer sleeve having a first through-hole near its proximal end; an inner sleeve disposed within the outer sleeve and having a second through-hole near its proximal end; a waveguide rod disposed within the inner sleeve and having a third through-hole near its proximal end; a pin extending through the first, second, and third through-holes, the surface of the pin being coated with an insulating coating; an insulating cap at least partially covering the pin and extending into the first and second through-holes, the outer diameter of the insulating cap being larger than the diameter of the third through-hole; and jaws connected to the inner sleeve and the outer sleeve, the jaws being in an open or closed state when the inner sleeve moves relative to the pin.

Description

Technical Field

[0001] This specification relates to the field of medical device technology, and in particular to a surgical instrument, a cannula assembly, and 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. Summary of the Invention

[0004] To solve the problems in the related art, the embodiments of the present disclosure provide a surgical instrument, a cannula assembly, and a super-electric hybrid energy platform.

[0005] One aspect of the present disclosure provides a surgical instrument suitable for a super-electric hybrid energy platform, comprising: a handheld shell, an outer sleeve, an inner sleeve, a waveguide rod, a pin, an insulating cap, and a jaw. A first through hole is provided near the proximal end of the outer sleeve. The inner sleeve is arranged inside the outer sleeve, and a second through hole is provided near its proximal end. The waveguide rod is arranged inside the inner sleeve, and a third through hole is provided near its proximal end. The proximal end is the end close to the handheld shell. The pin passes through the first through hole, the second through hole, and the third through hole, and the surface of the pin is covered with an insulating coating. The insulating cap at least partially covers the pin and extends into the first through hole and the second through hole, and the outer diameter of the insulating cap is larger than the diameter of the third through hole. The jaws are connected to the inner sleeve and the outer sleeve, and when the inner sleeve moves relative to the pin, the jaws are in an open or closed state.

[0006] Another aspect of the present disclosure provides a sleeve assembly suitable for an energy surgical instrument, comprising an outer sleeve, an inner sleeve, a waveguide rod, a pin, and an insulating cap. A first through hole is provided near the proximal end of the outer sleeve. The inner sleeve is disposed inside the outer sleeve, and a second through hole is provided near its proximal end. The waveguide rod is disposed inside the inner sleeve, and a third through hole is provided near its proximal end. The pin passes through the first through hole, the second through hole, and the third through hole, and the surface of the pin is covered with an insulating coating. The insulating cap covers the pin, extends into the first through hole and the second through hole, and contacts the waveguide rod, and the outer diameter of the insulating cap is larger than the diameter of the third through hole.

[0007] Another aspect of the present disclosure provides an ultrasonic-electric hybrid energy platform comprising: a surgical instrument as described above, a transducer, and a host. The transducer is mounted on the surgical instrument and connected to the host. The host includes an ultrasonic signal generator and a high-frequency electrical signal generator, which are configured to provide ultrasonic energy and high-frequency electrical energy to the surgical instrument via the transducer.

[0008] According to the technical solution of the embodiment of the present disclosure, by arranging an insulating cap outside the pin, the shear force of the relative movement of the inner sleeve on the insulation layer of the pin can be effectively reduced, the risk of the insulating coating being cut and causing a short circuit in the high-frequency electrical circuit can be reduced, and the safety of the super-electric hybrid surgical operation can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] 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:

[0010] Figure 1 A schematic diagram schematically illustrates a super-electric hybrid energy platform using an embodiment of the present disclosure;

[0011] Figure 2 A schematic diagram schematically illustrates a surgical instrument according to an embodiment of the present disclosure;

[0012] Figure 3 A schematic diagram schematically illustrates the distal ends of the outer cannula and the inner cannula according to an embodiment of the present disclosure;

[0013] Figure 4 For Figure 3 Schematic diagram after the jaws are installed on the foundation;

[0014] Figure 5 A partial schematic diagram schematically illustrates a surgical instrument according to an embodiment of the present disclosure;

[0015] Figure 6 A perspective view schematically showing an insulating cap according to an embodiment of the present disclosure;

[0016] Figure 7 A front view schematically illustrates an insulating cap according to an embodiment of the present disclosure;

[0017] Figure 8 Schematically shows a side view of an insulating cap according to an embodiment of the present disclosure;

[0018] Figure 9 Schematically showing a top view of an insulating cap according to an embodiment of the present disclosure

[0019] Figure 10 Schematically shows a bottom view of an insulating cap according to an embodiment of the present disclosure;

[0020] Figure 11A schematic diagram schematically illustrates the installation of an insulating cap according to an embodiment of the present disclosure;

[0021] Figure 12 A schematic perspective view schematically illustrating an outer sleeve, an inner sleeve, and a proximal end of a waveguide rod according to an embodiment of the present disclosure;

[0022] Figure 13 A side cross-sectional view schematically illustrating a proximal end of an operating portion of an embodiment of the present disclosure;

[0023] Figure 14 An axial schematic diagram schematically illustrating the proximal end of the operating portion of an embodiment of the present disclosure; and

[0024] Figure 15 A schematic diagram schematically illustrates a bushing assembly according to an embodiment of the present disclosure.

[0025] Reference numerals:

[0026] 100-Surgical instrument 123-Inner cannula 1251-Accommodation hole

[0027]

[0028] 110-handheld housing 1211-cutting head 12-side wall of insulating cap

[0029] 120-operating portion 1221-tongue portion 13-bottom surface of the insulating cap

[0030] 121-waveguide rod 1222-through hole 14-limiting protrusion

[0031] 122-outer sleeve 1231-fixing hole 20-pin DETAILED DESCRIPTION

[0032] 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.

[0033] In the present disclosure, it should be understood that terms such as "include" or "have" are intended to indicate the presence of features, numbers, steps, actions, components, parts, or combinations thereof disclosed in the present specification, and are not intended to exclude the possibility that one or more other features, numbers, steps, actions, components, parts, or combinations thereof exist or are added.

[0034] It should also be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present disclosure may be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] In surgical procedures involving super-electric hybrid energy, the blade and jaws of surgical instruments utilize super-electric hybrid energy to perform the procedure. In some cases, the blade and jaws clamp tissue to form the two poles of a high-frequency current, thereby achieving the electrosurgical function. In other cases, the blade performs only the function of an ultrasonic scalpel. Furthermore, sometimes it is necessary to use both electrosurgical and ultrasonic scalpel functions simultaneously, distributing energy between the two to better adapt to various complex surgical scenarios.

[0036] In the scenario of an ultrasonic scalpel, the inner and outer sleeves and the waveguide rod are not electrified, and there is no risk of short circuit. The single-stage electric scalpel does not require jaws to clamp the tissue, and there is no situation where the inner sleeve cuts the insulating coating of the pin. However, in the hybrid energy platform of the disclosed embodiment, the inner sleeve is required to reciprocate to drive the jaws to open and close to clamp the tissue. At the same time, the jaws and the blade are two different electrodes and short circuit cannot occur. The inventors found that the pins in the sleeve assembly are in direct contact with the waveguide rod. If the movement of the inner sleeve cuts through the insulating coating of the pin, it will cause a short circuit between the inner and outer sleeves and the waveguide rod, posing a safety hazard.

[0037] An embodiment of the present disclosure provides a surgical instrument suitable for a super-electric hybrid energy platform, comprising: a handheld housing, an outer sleeve, an inner sleeve, a waveguide rod, a pin, an insulating cap, and jaws. A first through-hole is provided near the proximal end of the outer sleeve. The inner sleeve is disposed within the outer sleeve and has a second through-hole disposed near its proximal end. The waveguide rod is disposed within the inner sleeve and has a third through-hole disposed near its proximal end. The pin extends through the first, second, and third through-holes, and the surface of the pin is coated with an insulating coating. The insulating cap at least partially covers the pin and extends into the first and second through-holes, with the outer diameter of the insulating cap being larger than the diameter of the third through-hole. The jaws are connected to the inner sleeve and the outer sleeve, and when the inner sleeve moves relative to the pin, the jaws are opened or closed. According to the technical solution of the embodiment of the present disclosure, by providing the insulating cap outside the pin, the shear force exerted on the pin's insulation layer by the relative movement of the inner sleeve can be effectively reduced, thereby reducing the risk of the insulating coating being cut and causing a short circuit in the high-frequency electrical circuit, thereby improving the safety of super-electric hybrid surgical procedures.

[0038] The technical solutions provided by various embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0039] First of all, it should be noted that in the various embodiments described in this article, the "proximal end" of the operating part, outer sleeve, inner sleeve or waveguide rod refers to the side of these components close to the handheld shell; the "distal end" refers to the side of these components away from the handheld shell.

[0040] Figure 1 A schematic diagram schematically illustrates a super-electric hybrid energy platform using an embodiment of the present disclosure.

[0041] like Figure 1As shown, the ultrasonic-electric hybrid energy platform includes a surgical instrument 100, a transducer 200, and a host 300. The transducer 200 is mounted on the surgical instrument 100 and connected to the host 300 via a cable. The host 300 includes an ultrasonic signal generator and a high-frequency electrical signal generator, which are used to provide ultrasonic energy and high-frequency electrical energy to the surgical instrument 100 through the transducer 200.

[0042] Figure 2 A schematic diagram schematically illustrates a surgical instrument 100 according to an embodiment of the present disclosure.

[0043] like Figure 2 As shown, the surgical instrument 100 suitable for the super-electric hybrid energy platform includes a handheld housing 110 and an operating unit 120. The operating unit 120 may include an outer sleeve 122, an inner sleeve 123, a waveguide rod 121, and jaws 124. The distal end of the waveguide rod 121 is a blade 1211, which can output ultrasonic energy and, in conjunction with the jaws 124, can also clamp tissue.

[0044] According to the embodiment of the present disclosure, the proximal end of the waveguide rod 121 is inside the handheld shell 110 and is connected to an electrode of the high-frequency current circuit in the connected transducer 200. For example, the waveguide rod 121 can be screwed to the conductive rod of the connected transducer 200. The distal end of the outer sleeve 122 is connected to the jaws 124, and an electrode is provided on the outside of the proximal end, which is connected to another electrode of the high-frequency current circuit of the connected transducer 200. The waveguide rod 121 and the outer sleeve 122 are both conductors and insulated from each other, so that two electrodes of high-frequency current can be formed at the blade head 1211 and the jaws 124. In addition, the waveguide rod 121 can also obtain ultrasonic vibrations from the connected transducer 200, so that super-electric hybrid surgical operations can be performed at the blade head 1211 and the jaws 124, which is conducive to obtaining better surgical results.

[0045] According to an embodiment of the present disclosure, the surgical instrument 100 may include a knob 125. The knob 125 is fixed to the exterior of the outer cannula 122 and is disposed at the proximal end of the outer cannula 122. The knob 125 may at least partially extend into the handheld housing 110 and be rotatably connected to the handheld housing 110. Rotating the knob 125 may drive the outer cannula to rotate, thereby adjusting the direction of the jaws 124.

[0046] First, combine Figure 3 and Figure 4 This section describes the structure of the distal end of the operating unit. Figure 3 A schematic diagram schematically illustrates the distal ends of the outer sleeve 122 and the inner sleeve 123 according to an embodiment of the present disclosure. Figure 4 For Figure 3 Schematic diagram after the jaws 124 are installed on the basis.

[0047] like Figure 3and Figure 4 As shown, 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, which is provided with a through hole 1222. 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.

[0048] For example, the jaws 124 may have hooks for engaging with the fixing holes 1231, thereby rotatably connecting the jaws 124 to the inner sleeve 123. The jaws 124 may also have through-holes, and a pin may be inserted through the through-holes of the outer sleeve 122 and the jaws 124, thereby rotatably connecting the jaws 124 to the outer sleeve 122. Thus, when the inner sleeve 123 moves back and forth, the jaws 124 rotate relative to the inner sleeve 123 and the outer sleeve 122, thereby achieving surgical manipulation.

[0049] Next, the proximal end of the operating portion 120 will be described. Figure 5 A partial schematic diagram of a surgical instrument 100 according to an embodiment of the present disclosure is schematically shown.

[0050] like Figure 5 As shown, the operating portion 120 can extend into the handheld housing 110 and be installed in the handheld housing 110 at one end away from the transducer 200. At the proximal end of the operating portion 120, the portion extending into the handheld housing 110, an insulating cap 10 can be seen on its outer surface.

[0051] Figures 6-10 The three-dimensional view, front view, side view, top view and bottom view of the insulation cap 10 according to the embodiment of the present disclosure are schematically shown respectively.

[0052] like Figures 6-10 As shown, the insulating cap 10 includes a top 11 and a side wall 12. According to the embodiment of the present disclosure, the bottom surface 13 of the side wall 12 is a curved surface, which matches the surface of the waveguide rod 121, making the structure more stable and more conducive to protecting the pin 20.

[0053] According to the disclosed embodiment, the sidewall thickness of the insulating cap 10 is 0.5mm-0.8mm. This thickness ensures material strength without taking up excessive space. The outer diameter of the sidewall 12 of the insulating cap 10 is 1mm-2mm. For example, the outer diameter of the sidewall 12 can be 1.5mm, the inner diameter can be 0.9mm, and the thickness can be 0.6mm. This size matches the diameter of the pin to effectively achieve the pin's fixing effect.

[0054] According to the embodiment of the present disclosure, the material of the insulating cap 10 may be, for example, polytetrafluoroethylene (PTFE), which has good strength and insulation, and an extremely low friction coefficient, and can effectively isolate the pin from the shear force generated by the movement of the inner sleeve.

[0055] Figure 11 The following schematically shows the installation diagram of the insulating cap 10 according to the embodiment of the present disclosure.

[0056] like Figure 11 As shown, the operating portion 120 may include a waveguide rod 121 (including a blade head 1211 ), an outer sleeve 122 , an inner sleeve 123 , a jaw 124 , and a knob 125 .

[0057] According to an embodiment of the present disclosure, a receiving hole 1251 may be provided on a side of the knob 125 close to the handheld housing 110 , and the insulating cap 10 may be mounted on the operating portion 120 through the receiving hole 1251 .

[0058] According to an embodiment of the present disclosure, the receiving hole 1251 may be in a non-centrally symmetrical shape. Figure 6-10 As shown, a limiting protrusion 14 may be further provided on the top 11 of the insulating cap 10 , which cooperates with the receiving hole 1251 of the knob 125 to prevent the insulating cap 10 from rotating in its axial direction.

[0059] In order to more clearly show the installation of the insulating cap 10, refer to Figure 12-14 For further introduction. Figure 12 A schematic perspective view of the outer sleeve 122, the inner sleeve 123, and the proximal end of the waveguide rod 121 of the embodiment of the present disclosure is shown. Figure 13 A side cross-sectional view schematically shows the proximal end of the operating portion 120 according to an embodiment of the present disclosure. Figure 14 The axial schematic diagram schematically shows the proximal end of the operating portion 120 according to an embodiment of the present disclosure.

[0060] like Figure 12-14 As shown, the outer sleeve 122 is provided with a first through-hole, the inner sleeve 123 is provided with a second through-hole, and the waveguide rod 121 is provided with a third through-hole. A pin 20 extends through the first, second, and third through-holes. The surface of the pin 20 is coated with an insulating coating, such as a silicone insulating layer. An insulating cap 10 at least partially covers the pin 20 and extends into the first and second through-holes. The outer diameter of the sidewall of the insulating cap 10 is larger than the diameter of the third through-hole, preventing it from extending into the third through-hole and thus preventing it from affecting the axial vibration of the waveguide rod 121.

[0061] According to the embodiment of the present disclosure, the second through hole on the inner sleeve 123 is a long hole, for example, the length-to-width ratio is greater than 2:1. Figure 3-Figure 4 As described above, when the inner sleeve 123 moves relative to the pin 20, the jaws 124 are in an open or closed state.

[0062] According to the embodiment of the present disclosure, the diameter of the first through hole can be adapted to the outer diameter of the insulating cap 10 , so that the structure is more stable.

[0063] The present disclosure also provides a cannula assembly suitable for an energy surgical instrument. Figure 15 A schematic diagram of a bushing assembly according to an embodiment of the present disclosure is schematically shown.

[0064] like Figure 15 As shown, the sleeve assembly includes an outer sleeve 122, an inner sleeve 123, a waveguide rod 121, a pin 20 and an insulating cap 10. Figure 2-14 As described above, the outer sleeve 122 is provided with a first through hole. The inner sleeve 123 is arranged inside the outer sleeve 122, and is provided with a second through hole. The waveguide rod 121 is arranged inside the inner sleeve 123, and is provided with a third through hole. The pin 20 passes through the first through hole, the second through hole and the third through hole, and the surface of the pin 20 is covered with an insulating coating. The insulating cap 10 covers the pin 20, extends into the first through hole and the second through hole, and contacts the waveguide rod 121. The outer diameter of the side wall of the insulating cap 10 is greater than the diameter of the third through hole. The structure of the insulating cap 10 can refer to the above Figures 6-10 The description is not repeated here.

[0065] The present disclosure also provides a super-electric hybrid energy platform, referring to Figure 1 The super electric hybrid energy platform includes a transducer, a host and Figure 2-Figure 14 The transducer 200 is mounted on the surgical instrument 100 and connected to the host 300 via a cable. The host 300 includes an ultrasonic signal generator and a high-frequency electrical signal generator, which are used to provide ultrasonic energy and high-frequency electrical energy to the surgical instrument 100 through the transducer 200.

[0066] 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 surgical instrument applied to a super-electric hybrid energy platform, characterized in that: include: Handheld housing; an outer sleeve, having a first through hole formed near a proximal end thereof, wherein the proximal end is an end close to the handheld housing; an inner sleeve, disposed inside the outer sleeve, and having a second through hole near its proximal end; a waveguide rod, disposed inside the inner sleeve, and having a third through hole near its proximal end; a pin, passing through the first through hole, the second through hole and the third through hole, wherein the surface of the pin is covered with an insulating coating; an insulating cap, at least partially covering the pin and extending into the first through hole and the second through hole, wherein an outer diameter of the insulating cap is larger than a diameter of the third through hole; and The jaws are connected to the inner sleeve and the outer sleeve, and when the inner sleeve moves relative to the pin, the jaws are in an open or closed state.

2. The surgical instrument according to claim 1, wherein The diameter of the first through hole is adapted to the outer diameter of the insulating cap.

3. The surgical instrument according to claim 1, wherein: The length-to-width ratio of the second through hole is greater than 2:

1.

4. The surgical instrument according to claim 1, wherein The insulating cap is made of polytetrafluoroethylene.

5. The surgical instrument according to claim 1, wherein The side wall thickness of the insulating cap is 0.5 mm to 0.8 mm.

6. The surgical instrument according to claim 1, wherein The outer diameter of the side wall of the insulating cap is 1mm-2mm.

7. The surgical instrument according to claim 1, wherein The bottom surface of the insulating cap is a curved surface, and the curved surface matches the surface of the waveguide rod.

8. The surgical instrument according to any one of claims 1 to 7, characterized in that: The surgical instrument further comprises: A knob is fixed to the outside of the outer sleeve and is used to adjust the direction of the jaws. A receiving hole is provided on one side of the knob close to the handheld housing. The receiving hole is non-centrally symmetrical. Wherein, a limiting protrusion is provided on the top of the insulating cap, and the limiting protrusion cooperates with the accommodating hole to prevent the insulating cap from rotating along the axial direction.

9. A cannula assembly suitable for an energy surgical instrument, characterized in that: include: An outer sleeve having a first through hole formed near its proximal end; an inner sleeve, disposed inside the outer sleeve, and having a second through hole near its proximal end; a waveguide rod, disposed inside the inner sleeve, and having a third through hole near its proximal end; a pin, passing through the first through hole, the second through hole and the third through hole, wherein the surface of the pin is covered with an insulating coating; as well as An insulating cap covers the pin, extends into the first through hole and the second through hole, and contacts the waveguide rod. The outer diameter of the insulating cap is greater than the diameter of the third through hole.

10. A super-electric hybrid energy platform, characterized in that: include: The surgical instrument according to any one of claims 1 to 8; a transducer mounted on the surgical instrument; as well as A host is electrically connected to the transducer, and the host includes an ultrasonic signal generating device and a high-frequency electric signal generating device, and is used to provide ultrasonic energy and high-frequency electric energy to the surgical instrument through the transducer.

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