CN116269728A

Movatterモバイル変換

Info

Publication number: CN116269728A
Application number: CN202310087521.4A
Authority: CN
Inventors: 徐汪洋; 赵东东; 冯庆宇
Original assignee: Qingdao Maibosi Medical Technology Co ltd
Current assignee: Qingdao Maibosi Medical Technology Co ltd
Priority date: 2022-12-29
Filing date: 2023-01-30
Publication date: 2023-06-23
Also published as: WO2024159844A1

Abstract

Embodiments of the present disclosure provide a surgical instrument, a waveguide assembly, and a superelectric hybrid energy platform. The surgical instrument includes a hand-held housing, an outer cannula, an inner cannula, a jaw, a waveguide rod, and an insulating cannula. Wherein, the inner sleeve is arranged inside the outer sleeve. The jaw is connected with the inner sleeve and the outer sleeve, and is in an opened or closed state under the condition that the inner sleeve moves. The waveguide rod is arranged inside the inner sleeve, one end close to the handheld shell is a proximal end, one end far away from the handheld shell is a distal end, a first insulating coating is arranged on the surface of the proximal end of the waveguide rod, the distal end of the waveguide rod is a cutter head, and a second insulating coating is arranged at a position close to the cutter head. An insulating sleeve is disposed between the waveguide rod and the inner sleeve, the insulating sleeve having a length less than the length of the waveguide rod, wherein a proximal end of the insulating sleeve partially covers the first insulating coating and a distal end of the insulating sleeve partially covers the second insulating coating.

Description

Surgical instrument, waveguide rod assembly, and superelectric hybrid energy platform

Technical Field

The present disclosure relates to the field of medical devices, and more particularly to a surgical device, a waveguide assembly, and a hybrid super-electric energy platform.

Background

Ultrasonic blades used in surgery are ultrasonic-based surgical instruments that convert ultrasonic signals into mechanical vibrations via an ultrasonic transducer, commonly used for cutting tissue. High frequency scalpels (scalpels for short) are also a common surgical instrument commonly used for sealing blood vessels and require high frequency electrical energy to drive. The ultrasonic electrotome (for short, the ultrasonic electrotome) has the advantages of the ultrasonic electrotome and the electrotome, and is beneficial to improving the operation effect.

In order to obtain better operation effect when the ultrasonic electric knife is applied, an ultrasonic electric hybrid energy platform can be built. In the platform, including instruments for performing surgical operations, energy transmission lines, transducers involving energy conversion, electrical connection means, and energy source devices, etc., special designs are required to ensure safety and stability when the system is in operation.

In the super-electric hybrid energy platform, a waveguide rod and a cutter head are one electrode of high-frequency electric energy, an inner sleeve connecting jaw is the other electrode of the high-frequency electric energy, and insulation treatment is needed between the waveguide rod and the cutter head. Because the waveguide rod is longer, and the surface is not smooth, if the whole insulating coating is adopted, the processing difficulty is high, the consistency of the insulating layer can not be ensured, and the yield is low. Therefore, how to ensure the insulation between the two and improve the yield is a problem to be solved.

Disclosure of Invention

To address the problems in the related art, embodiments of the present disclosure provide a surgical instrument, a waveguide assembly, and a superelectric hybrid energy platform.

One aspect of the present disclosure provides a surgical instrument adapted for use with a super-electric hybrid energy platform that includes a hand-held housing, an outer cannula, an inner cannula, a jaw, a waveguide rod, and an insulating cannula. Wherein, the inner sleeve is arranged inside the outer sleeve. The jaw is connected with the inner sleeve and the outer sleeve, and is in an opened or closed state under the condition that the inner sleeve moves. The waveguide rod is arranged inside the inner sleeve, one end close to the handheld shell is a proximal end, one end far away from the handheld shell is a distal end, a first insulating coating is arranged on the surface of the proximal end of the waveguide rod, the distal end of the waveguide rod is a cutter head, and a second insulating coating is arranged at a position close to the cutter head. An insulating sleeve is disposed between the waveguide rod and the inner sleeve, the insulating sleeve having a length less than the length of the waveguide rod, wherein a proximal end of the insulating sleeve partially covers the first insulating coating and a distal end of the insulating sleeve partially covers the second insulating coating.

Another aspect of the present disclosure provides a waveguide assembly, including a waveguide and an insulation sleeve, suitable for use with an energy surgical instrument. The surface of the proximal end of the waveguide rod is provided with a first insulating coating, the distal end of the waveguide rod is a cutter head, and a second insulating coating is arranged at a position close to the cutter head. An insulating sleeve is sleeved outside the waveguide rod, the length of the insulating sleeve is smaller than that of the waveguide rod, wherein the proximal end of the insulating sleeve is partially covered with the first insulating coating, and the distal end of the insulating sleeve is partially covered with the second insulating coating.

Another aspect of the present disclosure provides a super-electric hybrid energy platform comprising: surgical instruments, transducers and hosts as above. The transducer is mounted to the surgical instrument and is coupled to the host computer. The host includes an ultrasonic signal generating device and a high frequency electrical signal generating device for providing ultrasonic energy and high frequency electrical energy to the surgical instrument via the transducer.

According to the technical scheme of the embodiment of the disclosure, the insulating coatings are arranged at the two ends of the waveguide tube, and the composite mode of the insulating sleeve is adopted in the middle, so that the processing difficulty is effectively reduced, the yield of products is improved and the cost is reduced on the premise of ensuring the insulativity.

Drawings

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

FIG. 1 schematically illustrates a schematic diagram of a superelectric hybrid energy platform to which embodiments of the present disclosure are applied;

FIG. 2 schematically illustrates a schematic view of a surgical instrument of an embodiment of the present disclosure;

FIG. 3 schematically illustrates a schematic view of outer and inner cannula distal ends of an embodiment of the present disclosure;

FIG. 4 is a schematic view of the jaw assembly of FIG. 3;

FIG. 5 schematically illustrates a schematic view of a waveguide assembly of an embodiment of the present disclosure; and

fig. 6 schematically illustrates a partial schematic view of a distal end of a waveguide assembly of an embodiment of the present disclosure.

Reference numerals:

100-surgical instrument 125-knob

200-transducer 1211-cutter head

300-host 1221-tongue

110-hand-held housing 1222-through hole

120-operating part 1231-fixing hole

121-waveguide rod 10-insulating sleeve

122-outer sleeve 11-first insulating coating

123-inner sleeve 12-second insulating coating

124-jaw

Detailed Description

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, portions irrelevant to description of the exemplary embodiments are omitted in the drawings.

In this disclosure, it should be understood that terms such as "comprises" or "comprising," etc., are intended to indicate the presence of features, numbers, steps, acts, components, portions, or combinations thereof disclosed in this specification, and are not intended to exclude the possibility that one or more other features, numbers, steps, acts, components, portions, or combinations thereof are present or added.

In addition, it should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In the context of surgical applications of superelectric hybrid energy, the tips and jaws of surgical instruments are intended to employ the superelectric hybrid energy to perform a surgical procedure. In some cases, two poles of high-frequency current are formed after tissue is clamped between the cutter head and the jaw, so that the function of the electric knife is realized. In other scenarios, the tool tip performs only a single ultrasonic blade function. In addition, it is sometimes desirable to use both the electric and ultrasonic blade functions and to distribute energy between them to better accommodate a variety of complex surgical scenarios.

Embodiments of the present disclosure provide a surgical instrument suitable for use with a super-electric hybrid energy platform that includes a hand-held housing, an outer cannula, an inner cannula, a jaw, a waveguide rod, and an insulating cannula. Wherein, the inner sleeve is arranged inside the outer sleeve. The jaw is connected with the inner sleeve and the outer sleeve, and is in an opened or closed state under the condition that the inner sleeve moves. The waveguide rod is arranged inside the inner sleeve, one end close to the handheld shell is a proximal end, one end far away from the handheld shell is a distal end, a first insulating coating is arranged on the surface of the proximal end of the waveguide rod, the distal end of the waveguide rod is a cutter head, and a second insulating coating is arranged at a position close to the cutter head. An insulating sleeve is disposed between the waveguide rod and the inner sleeve, the insulating sleeve having a length less than the length of the waveguide rod, wherein a proximal end of the insulating sleeve partially covers the first insulating coating and a distal end of the insulating sleeve partially covers the second insulating coating. Through set up insulating coating at waveguide both ends, adopt insulating tube's compound mode in the middle, effectively reduced the processing degree of difficulty, under the prerequisite of guaranteeing the insulating nature, improved the yields of product to the cost is reduced.

The following describes in detail the technical solutions provided by the embodiments of the present disclosure with reference to the accompanying drawings.

It should be noted that, in the various embodiments described below, the "proximal end" of the operating portion, the outer sleeve, the inner sleeve, the waveguide rod, or the insulating sleeve refers to the side of the components that is adjacent to the handheld housing; "distal" refers to the side of the components that is remote from the hand-held housing.

Fig. 1 schematically illustrates a schematic diagram of a superelectric hybrid energy platform to which embodiments of the present disclosure are applied.

As shown in FIG. 1, the superelectric hybrid energy platform includes asurgical instrument 100, atransducer 200, and ahost 300. Wherein thetransducer 200 is mounted to thesurgical instrument 100 and connected to thehost 300 by a cable. Thehost 300 includes an ultrasonic signal generating device and a high frequency electrical signal generating device for providing ultrasonic energy and high frequency electrical energy to thesurgical instrument 100 via thetransducer 200.

Fig. 2 schematically illustrates a schematic view of asurgical instrument 100 of an embodiment of the present disclosure.

As shown in fig. 2, thesurgical instrument 100 adapted for use with a super-electric hybrid energy platform includes a hand-heldhousing 110 and an operatingportion 120. The operatingportion 120 may include an outer sleeve, an inner sleeve, a waveguide rod,jaws 124, and the like.

According to an embodiment of the present disclosure, the inner sleeve is arranged inside the outer sleeve.Jaws 124 are connected to the inner and outer sleeves, andjaws 124 are opened or closed when the inner sleeve is moved.

According to the embodiment of the disclosure, the distal end of the waveguide rod is acutter head 1211, which can output ultrasonic energy, and can also perform the action of clamping tissue in cooperation with thejaw 124.

According to an embodiment of the present disclosure, the proximal end of the waveguide rod is connected within the hand-heldhousing 110 to one electrode of the high frequency current line in theconnected transducer 200. For example, the waveguide rod may be threaded with the conductive rod of theconnected transducer 200. The distal end of the outer sleeve is connected tojaw 124, and an electrode is provided on the outside of the proximal end, which is connected to the other electrode of the high frequency current line of theconnected transducer 200. The waveguide rod and the outer sleeve are both conductors and insulated from each other, forming two electrodes for high frequency current at thebit 1211 and thejaw 124. In addition, the waveguide rod can also obtain ultrasonic vibrations from the attachedtransducer 200, so that a super-electric hybrid surgical procedure can be performed at theblade 1211 and thejaws 124, which is advantageous for obtaining a better surgical effect.

According to embodiments of the present disclosure, thesurgical instrument 100 may also include aknob 125. Theknob 125 is fixed to the outside of the outer cannula, disposed at the proximal end of the outer cannula. Theknob 125 may extend at least partially into the hand-heldhousing 110 and be rotatably coupled to the hand-heldhousing 110. Theknob 125, when rotated, can rotate the outer sleeve, thereby adjusting the orientation of thejaws 124.

Fig. 3 schematically illustrates a schematic view of distal ends of anouter cannula 122 and aninner cannula 123 of an embodiment of the present disclosure, and fig. 4 is a schematic view of thejaw 124 after installation on the basis of fig. 3.

As shown in fig. 3 and 4, the distal end of theinner sleeve 123 may be provided with afixation hole 1231. The distal end of theouter sleeve 122 has a tongue 1221, the tongue 1221 has a throughhole 1222, and thejaw 124 is connected to theinner sleeve 123 and theouter sleeve 122 through the throughhole 1222 and thefixing hole 1231, and when theinner sleeve 123 moves, thejaw 124 is opened or closed.

For example, thejaw 124 may have a catch for mating with the securingaperture 1231, thejaw 124 being rotatably connected with theinner sleeve 123.Jaw 124 also has a through hole, and a pin may be inserted throughouter sleeve 122 and the through hole injaw 124 to rotatably connectjaw 124 toouter sleeve 122. Thus, with theinner cannula 123 moved back and forth, thejaws 124 rotate relative to theinner cannula 123 andouter cannula 122 to effect a surgical action.

According to the embodiment of the disclosure, a first insulating coating is arranged on the surface of the proximal end of the waveguide rod, the distal end of the waveguide rod is a tool bit, and a second insulating coating is arranged at a position close to the tool bit. Thesurgical instrument 100 further includes an insulating sleeve disposed between the waveguide rod and the inner sleeve.

Fig. 5 and 6 schematically illustrate schematic views of waveguide assemblies of embodiments of the present disclosure.

As shown in fig. 5 and 6, the proximal end surface of thewaveguide rod 121 is provided with a first insulatingcoating 11, the distal end of thewaveguide rod 121 is provided with acutter head 1211, and a second insulatingcoating 12 is provided near thecutter head 1211.

The insulatingsleeve 10 is sleeved outside thewaveguide rod 121. The length of the insulatingsleeve 10 is smaller than the length of thewaveguide rod 121. Wherein the proximal end of the insulatingsleeve 10 is partially covered with a first insulatingcoating 11 and the distal end of the insulatingsleeve 10 is partially covered with a second insulatingcoating 12.

According to an embodiment of the present disclosure, the material of the first insulatingcoating 11 and/or the second insulatingcoating 12 is parylene. The parylene has inactive chemical property, and the surface coating is conformal, thus being a good polymer insulating layer. The film thickness accuracy can be controlled to 1 μm by vacuum deposition technique.

According to an embodiment of the present disclosure, the thickness of the first insulatingcoating 11 and/or the second insulatingcoating 12 is 30-50 micrometers. On the one hand, in order to ensure the insulation performance, the thickness of the insulation coating cannot be too small, the insulation performance still needs to be ensured under the scene of 2000V alternating voltage, and the insulation coating cannot be broken down; on the other hand, if the thickness of the insulating coating is too large, it will affect the impedance of the waveguide rod and thus the ultrasonic energy output effect. After a number of experiments, it was considered appropriate to choose an insulating coating with a thickness of 30-50 μm.

According to embodiments of the present disclosure, the length of the insulatingsleeve 10 may be 70% -90% of the length of thewaveguide rod 121. For example, for a 400mm length waveguide rod, the length of the insulating sleeve may be designed to be 340mm; for a 270mm length waveguide rod, the length of the insulating sleeve may be designed to be 220mm. Therefore, the insulating sleeve can cover most of the surface area of the waveguide rod, the coating difficulty of the insulating coating is reduced, and the coating cost is reduced.

The thickness of the insulatingsleeve 10 may be 0.1mm-0.2mm, for example 0.15mm, according to embodiments of the present disclosure. On the one hand, the thickness of the insulating sleeve must not be too small in order to ensure insulating properties; on the other hand, the insulating sleeve needs to be designed as thin as possible, subject to space constraints. Therefore, the thickest parts at the two ends of the waveguide rod are avoided, and the insulating sleeve with the thickness of 0.1mm-0.2mm is used in the middle area, so that various requirements can be met.

According to an embodiment of the present disclosure, the material of the insulatingsleeve 10 is a thermoplastic elastomer (TPE, thermoplastic Elastomer). When the super-electric hybrid energy platform is used, the temperature of the waveguide rod is high, and the conventional material is easy to shrink at high temperature, so that an insulating material with low shrinkage rate is required to be used as an insulating sleeve.

According to an embodiment of the present disclosure, a plurality of washers are further sleeved outside thewaveguide rod 121 for supporting the insulation sleeve. In this way, the insulatingsleeve 10 can be tightly sleeved outside thewaveguide rod 121, and the influence on ultrasonic energy output is reduced.

According to an embodiment of the present disclosure, the proximal end of the insulatingsleeve 10 partially covers the first insulatingcoating 11, and the distal end of the insulatingsleeve 10 partially covers the second insulatingcoating 12. For example, the first insulatingcoating 11 extends from the proximal end of thewaveguide rod 121 to the proximal edge of the insulatingsleeve 10 by 5mm to 30mm, for example 8mm, toward the inside of the insulatingsleeve 10; extending from 5mm to 30mm inside the distal end of the insulatingsleeve 10 in the direction of thecutter head 1211 in the second insulatingcoating 12. The metal of thewaveguide rod 121, except for thebit 1211, has no exposed portion, ensuring the overall insulation between thewaveguide rod 121 and theinner sleeve 123.

In accordance with an embodiment of the present disclosure, the second insulatingcoating 12 extends 0.5mm to 10mm, for example 1mm, beyond the distal end of theinner sleeve 123 when thejaws 124 are in the open state. Referring to fig. 3 and 4, the opening and closing ofjaws 124 is accompanied by a back and forth movement ofinner sleeve 123. Theinner sleeve 123 moves furthest in the state where thejaws 124 are opened, and the insulation requirements can be satisfied in other states as long as the insulation at this time is ensured.

Embodiments of the present disclosure also provide a waveguide rod assembly suitable for use with an energy surgical instrument, referring to fig. 5. The waveguide rod assembly includes awaveguide rod 121 and an insulatingsleeve 10. The proximal end surface of thewaveguide rod 121 is provided with a first insulatingcoating 11, the distal end of thewaveguide rod 121 is provided with acutter head 1211, and a second insulatingcoating 12 is provided near thecutter head 1211. The insulatingsleeve 10 is sleeved outside thewaveguide rod 121, and the length of the insulatingsleeve 10 is smaller than that of thewaveguide rod 121. The proximal end of the insulatingsleeve 10 partially covers the first insulatingcoating 11 and the distal end of the insulatingsleeve 10 partially covers the second insulatingcoating 12. Refer to the above parts of fig. 5 and 6 for detailed description, and are not repeated here.

The embodiment of the disclosure also provides an superelectricity hybrid energy platform, referring to fig. 1. The superelectric hybrid energy platform includes a transducer, a host, and a surgical instrument as described in fig. 2-6. Wherein thetransducer 200 is mounted to thesurgical instrument 100 and connected to thehost 300 by a cable. Thehost 300 includes an ultrasonic signal generating device and a high frequency electrical signal generating device for providing ultrasonic energy and high frequency electrical energy to thesurgical instrument 100 via thetransducer 200.

The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the invention referred to in this disclosure is not limited to the specific combination of features described above, but encompasses other embodiments in which any combination of features described above or their equivalents is contemplated without departing from the inventive concepts described. Such as those described above, are mutually substituted with the technical features having similar functions disclosed in the present disclosure (but not limited thereto).

Claims

1. A surgical instrument for use with a super-electric hybrid energy platform, comprising:

a hand-held housing;

an outer sleeve;

an inner sleeve arranged inside the outer sleeve;

a jaw connected to the inner sleeve and the outer sleeve, wherein the jaw is in an opened or closed state under the condition that the inner sleeve moves;

the waveguide rod is arranged in the inner sleeve, one end, close to the handheld shell, of the waveguide rod is a proximal end, one end, far away from the handheld shell, of the waveguide rod is a distal end, a first insulating coating is arranged on the surface of the proximal end of the waveguide rod, the distal end of the waveguide rod is a cutter head, and a second insulating coating is arranged at a position, close to the cutter head, of the waveguide rod; and

and an insulating sleeve disposed between the waveguide rod and the inner sleeve, the insulating sleeve having a length less than the length of the waveguide rod, wherein a proximal end of the insulating sleeve partially covers the first insulating coating and a distal end of the insulating sleeve partially covers the second insulating coating.

2. The surgical instrument of claim 1, wherein the length of the insulating sleeve is 70% -90% of the length of the waveguide rod.

3. The surgical instrument of claim 1, wherein the thickness of the insulating sleeve is 0.1mm-0.2mm.

4. The surgical instrument of claim 1, wherein the material of the insulating sleeve is a thermoplastic elastomer.

5. The surgical instrument of any one of claims 1-4, wherein the first insulating coating extends 5mm-30mm inward of the insulating sleeve from a proximal end of the waveguide rod to a proximal edge of the insulating sleeve.

6. The surgical instrument of any one of claims 1-4, wherein the second insulating coating extends from 5mm to 30mm inside the distal end of the insulating sleeve toward the tool tip.

7. The surgical instrument of claim 6, wherein the second insulating coating extends 0.5mm-10mm beyond the distal end of the inner sleeve when the jaws are in an open state.

8. The surgical instrument of any one of claims 1-4, wherein the material of the first insulating coating and/or the second insulating coating is parylene.

9. A waveguide rod assembly adapted for use with an energy surgical instrument, comprising:

the wave guide rod is provided with a first insulating coating on the surface of the proximal end, the distal end of the wave guide rod is provided with a cutter head, and a second insulating coating is arranged at a position close to the cutter head; and

and the insulation sleeve is sleeved outside the waveguide rod, the length of the insulation sleeve is smaller than that of the waveguide rod, wherein the proximal end of the insulation sleeve partially covers the first insulation coating, and the distal end of the insulation sleeve partially covers the second insulation coating.

10. A super-electric hybrid energy platform, comprising:

the surgical instrument of any one of claims 1-8;

a transducer mounted to the surgical instrument; and

and the host is electrically connected with the transducer and comprises an ultrasonic signal generating device and a high-frequency electric signal generating device, and the host is used for providing ultrasonic energy and high-frequency electric energy to the surgical instrument through the transducer.