CN219331894U

CN219331894U - Surgical instrument, jaw, cannula assembly, and superelectric hybrid energy platform

Info

Publication number: CN219331894U
Application number: CN202320086838.1U
Authority: CN
Inventors: 徐汪洋; 杨国鹏; 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: 2023-07-14
Anticipated expiration: 2033-01-30

Abstract

Embodiments of the present disclosure provide a surgical instrument, jaw, cannula assembly, and superelectric hybrid energy platform for use with a superelectric hybrid energy platform. The surgical instrument includes a hand-held housing, an outer cannula, an inner cannula, a waveguide rod, and a jaw. The distal end of the outer sleeve is provided with a tongue-shaped part, and the tongue-shaped part is provided with a first through hole. The inner sleeve is arranged inside the outer sleeve, and a fixing hole is formed in the far end of the inner sleeve. The waveguide rod is arranged inside the inner sleeve, and the distal end of the waveguide rod is a tool bit. The jaw is connected to the inner sleeve and the outer sleeve through the first through hole and the fixing hole, the jaw is in an open or closed state under the condition that the inner sleeve moves, the jaw comprises a limiting protrusion, and the limiting protrusion is in contact with the tongue-shaped part to generate a limiting effect on the rotation of the jaw under the condition that the jaw is in a closed state.

Description

Surgical instrument, jaw, cannula 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, jaw, cannula assembly, and superelectric hybrid 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, when the jaws are closed with the blade, a tissue pad on the jaws prevents the jaw electrodes from directly contacting the blade. In the case of continuous use, the tissue pad thins out due to wear, creating a risk of short circuits.

Disclosure of Invention

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

One aspect of the present disclosure provides a surgical instrument adapted for use with a super-electric hybrid energy platform, including a hand-held housing, an outer cannula, an inner cannula, a waveguide rod, and a jaw. The distal end of the outer sleeve is provided with a tongue-shaped part, and the tongue-shaped part is provided with a first through hole. The inner sleeve is arranged inside the outer sleeve, and a fixing hole is formed in the far end of the inner sleeve. The waveguide rod is arranged inside the inner sleeve, and the distal end of the waveguide rod is a tool bit. The jaw is connected to the inner sleeve and the outer sleeve through the first through hole and the fixing hole, the jaw is in an open or closed state under the condition that the inner sleeve moves, the jaw comprises a limiting protrusion, and the limiting protrusion is in contact with the tongue-shaped part to generate a limiting effect on the rotation of the jaw under the condition that the jaw is in a closed state.

Another aspect of the present disclosure provides a jaw adapted for use with a surgical instrument having a proximal end and a distal end, the jaw including a connecting portion and an extension. Wherein, connecting portion is located the proximal end, including two relative sides, is equipped with second through-hole and mounting on the side, still is equipped with spacing arch on the inner wall of side, and this spacing arch is located the one side that the second through-hole is close to the proximal end at least partially. An extension is located at the distal end for mounting a tissue pad.

Another aspect of the present disclosure provides a cannula assembly suitable for use with a surgical instrument, including an outer cannula, an inner cannula, and a jaw. The distal end of the outer sleeve is provided with a tongue-shaped part, and the tongue-shaped part is provided with a first through hole. The inner sleeve is arranged inside the outer sleeve, and a fixing hole is formed in the far end of the inner sleeve. The jaw is connected to the inner sleeve and the outer sleeve through the first through hole and the fixing hole, the jaw is in an open or closed state under the condition that the inner sleeve moves, the jaw comprises a limiting protrusion, and the limiting protrusion is in contact with the tongue-shaped part to generate a limiting effect on the rotation of the jaw under the condition that the jaw is in a closed state.

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 limiting protrusion is arranged on the jaw, so that the limiting protrusion is propped against the tongue-shaped part of the outer sleeve in a state that the jaw is closed, the jaw is prevented from further rotating, the risk of short circuit caused by contact between the cutter head and the electrode of the jaw is reduced, and the safety of the surgical operation of the super-electric hybrid is improved.

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 partial schematic view of a distal end region of a surgical instrument according to an embodiment of the present disclosure;

FIG. 4 schematically illustrates a schematic view of a jaw of an embodiment of the present disclosure;

FIG. 5 schematically illustrates a schematic view of a jaw mounted with a tissue pad and stop in an embodiment of the present disclosure;

FIG. 6 schematically illustrates a schematic view of outer and inner cannula distal ends of an embodiment of the present disclosure;

fig. 7 and 8 are schematic views of the jaw assembly of fig. 6, wherein fig. 7 is a schematic view of the jaw opening and fig. 8 is a schematic view of the jaw closing; and

fig. 9 schematically illustrates a schematic view of a cannula assembly of an embodiment of the present disclosure.

Reference numerals:

100-surgical instrument 125-knob 1243-jaw electrode

200-transducer 1211-cutter head 1244-jaw side

300-host 1221-tongue 1245-second through-hole

110-hand-held housing 1222-first through hole 1246-mount

122-outer sleeve 1231-fixing hole 10-limiting protrusion

123-inner cannula 1241-tissue pad

124-jaw 1242-stop

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, including a hand-held housing, an outer cannula, an inner cannula, a waveguide rod, and a jaw. The distal end of the outer sleeve is provided with a tongue-shaped part, and the tongue-shaped part is provided with a first through hole. The inner sleeve is arranged inside the outer sleeve, and a fixing hole is formed in the far end of the inner sleeve. The waveguide rod is arranged inside the inner sleeve, and the distal end of the waveguide rod is a tool bit. The jaw is connected to the inner sleeve and the outer sleeve through the first through hole and the fixing hole, the jaw is in an open or closed state under the condition that the inner sleeve moves, the jaw comprises a limiting protrusion, and the limiting protrusion is in contact with the tongue-shaped part to generate a limiting effect on the rotation of the jaw under the condition that the jaw is in a closed state.

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" ends of the outer cannula, inner cannula, waveguide rod, jaw, or tissue pad all refer to the side of the components that is adjacent to the hand-held 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 a surgical instrument 100, a transducer 200, and a host 300. Wherein the transducer 200 is mounted to the surgical instrument 100 and connected to the host 300 by a cable. The host 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 the surgical instrument 100 via the transducer 200.

Fig. 2 schematically illustrates a schematic view of a surgical instrument 100 of an embodiment of the present disclosure, and fig. 3 schematically illustrates a partial schematic view of a distal region of the surgical instrument 100 of an embodiment of the present disclosure.

As shown in fig. 2 and 3, the surgical instrument 100 adapted for use with a super-electric hybrid energy platform includes a hand-held housing 110 and an operating portion. The manipulation portion may include an outer sleeve 122, an inner sleeve 123, a waveguide rod, a jaw 124, and the like. The inner sleeve is arranged inside the outer sleeve and outside the waveguide rod. The distal end of the waveguide rod is a blade 1211, which can output ultrasonic energy, and in cooperation with the jaws 124, can also perform tissue clamping actions.

According to an embodiment of the present disclosure, the proximal end of the waveguide rod is connected within the hand-held housing 110 to one electrode of the high frequency current line in the connected transducer 200. For example, the waveguide rod may be screw mounted with the conductive rod of the connected transducer 200. The distal end of the outer sleeve 122 is connected to the jaw 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 the connected transducer 200. The waveguide rod 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 bit 1211 and the jaw 124. In addition, waveguide rod 121 may also obtain ultrasonic vibrations from the attached transducer 200, so that a superhybrid surgical procedure may be performed at blade 1211 and jaw 124, which may be advantageous for better surgical results.

As shown in fig. 3, tissue pad 1241 and stop 1242 may be mounted on jaw 124 in accordance with an embodiment of the present disclosure. During installation, the tissue pad 1241 is slid into the slideway of the jaw 124, and then the stop block 1242 is fixed at the entrance of the slideway to prevent the tissue pad 1241 from sliding out, thereby playing a fixing role.

According to an embodiment of the present disclosure, the front section of jaw 124 is flanked by jaw electrodes 1243. When the jaws are closed, knife 1211 and jaw 124 grip tissue, and a discharge is created between knife 1211 and jaw electrode 1243 to perform a surgical procedure.

As shown in fig. 2, surgical instrument 100 may further include a knob 125, according to embodiments of the present disclosure. The knob 125 is fixed to the outside of the outer sleeve 122, disposed at the proximal end of the outer sleeve 122. The knob 125 may extend at least partially into the hand-held housing 110 and be rotatably coupled to the hand-held housing 110. The knob 125, when rotated, can rotate the outer sleeve, thereby adjusting the orientation of the jaws 124.

Fig. 4 schematically illustrates a schematic view of a jaw of an embodiment of the present disclosure, and fig. 5 schematically illustrates a schematic view of a jaw mounted with a tissue pad and stop of an embodiment of the present disclosure.

As shown in fig. 4 and 5, the jaw 124 may include a connection portion and an extension portion. Wherein the extension is located distally for mounting a tissue pad 1241. The connection is located at the proximal end and includes two opposing sides 1244. The side 1244 is provided with a second through hole 1245 and a fixing part 1246. The mount 1246 may be, for example, a hook.

According to an embodiment of the present disclosure, the jaw 124 is further provided with a limiting protrusion 10. The stop tab 10 may be disposed on an inner wall of the side 1244 and at least partially on a proximal side of the second through hole 1245. The limit projection 10 may be, for example, a prism, a cylinder or a sector-shaped cylinder. Wherein the prism and the sector column have a plane contact surface, and the contact with the tongue part is more stable. The cylinder can generate enough limit capability in any direction, the requirements on design and production errors are smaller, and the yield is higher.

The structure of the distal ends of the outer and

inner sleeves

122, 123 connected to the jaws 124 will be described first with reference to fig. 6 and 7. Fig. 6 schematically illustrates a schematic view of the distal ends of the outer sleeve 122 and the inner sleeve 123 of an embodiment of the present disclosure, and fig. 7 is a schematic view after the jaws 124 are installed on the basis of fig. 6.

As shown in fig. 6 and 7, the distal end of the inner sleeve 123 may be provided with a fixation hole 1231. The distal end of the outer sleeve 122 has a tongue 1221, the tongue 1221 is provided with a first through hole 1222, and the jaw 124 is connected to the inner sleeve 123 and the outer sleeve 122 through the first through hole 1222 and the fixing hole 1231, and when the inner sleeve 123 moves, the jaw 124 is opened or closed.

For example, jaw 124 is rotatably coupled to a securing aperture 1231 on inner sleeve 123 via a securing member 1246 (e.g., a claw). Surgical instrument 100 can further include a pin that passes through first throughbore 1222 and second throughbore 1245 to rotatably couple jaw 124 with outer sleeve 122. Thus, when the inner sleeve 123 moves forward and backward, the jaws 124 rotate with respect to the inner sleeve 123 and the outer sleeve 122 in an opened or closed state to perform a surgical operation.

As shown in fig. 7 and 8, in the state where the jaw 124 is opened, the stopper protrusion does not exert a stopper effect, and the jaw 124 can freely rotate. With the jaws 124 in the closed condition, the stop tab 10 contacts the tongue 1221, limiting the rotation of the jaws 124, preventing continued rotation of the jaws. Thus, even if the tissue pad 1241 and the stopper 1242 of the jaw are worn down to be thin, it is ensured that the jaw electrode 1243 and the bit 1211 are not short-circuited. In addition, the limiting protrusion 10 can be communicated with the outer sleeve 122 and the jaw electrode 1243, but is not communicated with the cutter head 1211 all the time, so that the insulating problem is not required to be considered, and a more wear-resistant metal material can be used for the limiting protrusion.

Embodiments of the present disclosure also provide a jaw adapted for use with a surgical instrument having a proximal end and a distal end opposite the proximal end. Referring to fig. 4, the jaw 124 includes a connecting portion and an extending portion. The extension is located distally for mounting a tissue pad 1241. The connection is located at the proximal end and includes two opposing sides 1244. The side 1244 is provided with a second through hole 1245 and a fixing part 1246. The mount 1246 may be, for example, a hook. The inner wall of the side 1244 is provided with a limiting protrusion 10, and the limiting protrusion 10 is at least partially located at one side of the second through hole 1245 near the proximal end. According to an embodiment of the present disclosure, the limit protrusion may be a prism, a cylinder, or a sector-shaped cylinder.

Embodiments of the present disclosure also provide a cannula assembly suitable for use with surgical instruments, and fig. 9 schematically illustrates a schematic view of a cannula assembly of an embodiment of the present disclosure.

As shown in fig. 9, the sleeve assembly includes an outer sleeve 122, an inner sleeve 123, and jaws 124. 2-8 above, the distal end of the outer cannula 122 has a tongue 1221 with a first through hole 1222 disposed in the tongue 1221. The inner sleeve 123 is disposed inside the outer sleeve 122, and a fixing hole 1231 is disposed at a distal end of the inner sleeve 123. The jaw 124 is connected to the inner and

outer sleeves

123, 122 through the first through holes 1222 and the fixing holes 1231. With movement of inner sleeve 123, jaws 124 are in an open or closed state. The jaw 124 includes a limiting protrusion 10, and in a state in which the jaw 124 is closed, the limiting protrusion 10 contacts the tongue 1221 to limit rotation of the jaw 124. The structure of jaw 124 may be as described above with reference to fig. 4-8, and is not described in detail herein.

According to an embodiment of the present disclosure, jaw 124 is proximal at one end and distal at an end opposite the proximal end. The jaw 124 includes a connecting portion and an extension. The extension is located distally for mounting a tissue pad 1241. The connection is located at the proximal end and includes two opposing sides 1244. The side 1244 is provided with a second through hole 1245 and a fixing part 1246. The mount 1246 may be, for example, a hook. Jaw 124 is rotatably coupled to the fixation aperture 1231 via a fixation member 1246.

According to an embodiment of the present disclosure, the stop protrusion 10 is disposed on an inner wall of the side surface 1244, and the stop protrusion 10 is at least partially located at a side of the second through hole 1245 near the proximal end. According to an embodiment of the present disclosure, the limit projection 10 may be a prism, a cylinder, or a sector-shaped column.

According to an embodiment of the present disclosure, the sleeve assembly further comprises a pin shaft. The pin passes through the first through hole 1222 and the second through hole 1245, rotatably connecting the jaw 124 with the outer sleeve 122. Thus, when the inner sleeve 123 moves forward and backward, the jaws 124 rotate with respect to the inner sleeve 123 and the outer sleeve 122 in an opened or closed state to perform a surgical operation.

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. 2-8. Wherein the transducer 200 is mounted to the surgical instrument 100 and connected to the host 300 by a cable. The host 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 the surgical instrument 100 via the transducer 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 utility model 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;

the outer sleeve is provided with a tongue-shaped part at the distal end, and a first through hole is arranged on the tongue-shaped part;

the inner sleeve is arranged inside the outer sleeve, and a fixing hole is formed in the far end of the inner sleeve;

the waveguide rod is arranged inside the inner sleeve, and the distal end of the waveguide rod is a tool bit; and

the jaw is connected to the inner sleeve and the outer sleeve through the first through hole and the fixing hole, the jaw is in an open or closed state under the condition that the inner sleeve moves, the jaw comprises a limiting protrusion, and the limiting protrusion is in contact with the tongue-shaped part to generate a limiting effect on the rotation of the jaw under the condition that the jaw is in a closed state.

2. The surgical instrument of claim 1, further comprising a pin, wherein one end of the jaw is a proximal end and an end opposite the proximal end is a distal end, the jaw comprising:

the connecting part is positioned at the proximal end and comprises two opposite side surfaces, a second through hole and a fixing piece are arranged on the side surfaces, the jaw is rotatably connected with the fixing hole through the fixing piece, the pin shaft penetrates through the first through hole and the second through hole, the limiting protrusion is arranged on the inner wall of the side surface, and the limiting protrusion is at least partially positioned at one side, close to the proximal end, of the second through hole;

an extension located at the distal end for mounting a tissue pad.

3. The surgical instrument of claim 2, wherein the fastener is a hook.

4. A surgical instrument according to any one of claims 1 to 3, wherein the limit projection is a prism, cylinder or sector.

5. A jaw adapted for use with a surgical instrument, wherein one end of the jaw is proximal and an end opposite the proximal end is distal, the jaw comprising:

the connecting part is positioned at the proximal end and comprises two opposite side surfaces, a second through hole and a fixing piece are arranged on the side surfaces, a limiting protrusion is arranged on the inner wall of each side surface, and the limiting protrusion is at least partially positioned at one side, close to the proximal end, of the second through hole;

an extension located at the distal end for mounting a tissue pad.

6. The jaw of claim 5, wherein the limit projection is a prism, cylinder, or sector.

7. A cannula assembly adapted for use with a surgical instrument, comprising:

the inner sleeve is arranged inside the outer sleeve, and a fixing hole is formed in the far end of the inner sleeve; and

8. The cannula assembly of claim 7, further comprising a pin, wherein one end of the jaw is proximal and one end opposite the proximal is distal, the jaw comprising:

an extension located at the distal end for mounting a tissue pad.

9. A sleeve assembly according to claim 7 or 8, wherein the limit projection is a prism, cylinder or sector.

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

the surgical instrument of any one of claims 1-4;

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.