CN216675846U

CN216675846U - Ultrasonic surgical knife bar and ultrasonic surgical instrument

Info

Publication number: CN216675846U
Application number: CN202120574978.4U
Authority: CN
Inventors: 尹宏屹; 郑民华; 仇明; 郭双梅; 张新岗
Original assignee: Straws Shenzhen Medical Technology Co ltd
Current assignee: Straws Shenzhen Medical Technology Co ltd
Priority date: 2021-03-21
Filing date: 2021-03-21
Publication date: 2022-06-07
Anticipated expiration: 2031-03-21

Abstract

The embodiment of the application discloses ultrasonic surgical knife bar and ultrasonic surgical instrument. One embodiment of the ultrasonic surgical blade holder comprises: ultrasonic energy output and ultrasonic energy conduction pole, wherein, ultrasonic energy output sets up on ultrasonic energy conduction pole, and the cross sectional area of ultrasonic energy output reduces by bottom to top gradually, and two relative sides on the ultrasonic energy output nonparallel, and the distance between the top of two relative sides is less than the distance between the bottom, wherein, two relative sides are two sides adjacent with the working face of ultrasonic energy output. This embodiment may help to reduce lateral thermal damage, allow the operator to more accurately position the surgical site, and improve surgical accuracy. And the resistance of ultrasonic energy transmitted to the working surface is reduced, so that the amplitude of the top end of the ultrasonic surgical knife bar is larger, and the transmission efficiency of the ultrasonic energy is improved.

Description

Ultrasonic surgical knife bar and ultrasonic surgical instrument

Technical Field

The embodiment of the application relates to the technical field of medical instruments, in particular to an ultrasonic surgical knife bar and an ultrasonic surgical instrument.

Background

In the existing ultrasonic surgical knife, the cross sections of all parts of the cutting part of the knife bar have the same area, and two longitudinal surfaces of the cross sections are parallel. Because the cutter bar cutting part of the ultrasonic cutter does longitudinal telescopic motion at the frequency of 20kHz-60kHz range under the driving of ultrasonic waves, when in cutting, the cutter bar bears larger acting force because the area of the part of the cutter bar contacted with biological tissues is larger, and therefore, the phenomenon of cutter bar fracture often occurs. Especially, when the blood vessel is closed during the operation, the knife rod can cause the patient to bleed greatly if the knife rod is broken suddenly, and the serious medical accident is caused. In addition, in order to increase the amplitude of the cutting portion of the cutter bar, it is necessary to further improve the shape of the cross section of the cutting portion of the cutter bar.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an ultrasonic surgical knife bar and an ultrasonic surgical instrument, and aims to solve the technical problems mentioned in the background technology.

In a first aspect, the present invention provides an ultrasonic surgical tool bar, which includes an ultrasonic energy output end 101 and an ultrasonic energy conducting rod 102, wherein the ultrasonic energy output end 101 is disposed on the ultrasonic energy conducting rod 102, a cross-sectional area of the ultrasonic energy output end 101 gradually decreases from a bottom 1011 to a top 1012, two opposite sides on the ultrasonic energy output end 101 are not parallel, and a distance between the tops of the two opposite sides is smaller than a distance between the bottoms, wherein the two opposite sides are two sides adjacent to a working surface of the ultrasonic energy output end 101.

In some embodiments, in the cross section of the ultrasonic energy output end 101, one of two corresponding sides of the two opposite sides coincides with one side of the smallest circumscribed rectangle of the cross section.

In some embodiments, in the cross section of the ultrasonic energy output end 101, two corresponding sides of the two opposite sides are not overlapped with the side of the smallest circumscribed rectangle of the cross section, and two corresponding sides of the two opposite sides are symmetrical with respect to the longitudinal center line of the cross section.

In some embodiments, the ultrasonic energy output port 101 and the ultrasonic energy conducting rod 102 are integrally formed.

In some embodiments, the ultrasonic energy output port 101 is a curved structure.

In some embodiments, the cross-sectional area of the interface of the ultrasonic energy output end 101 and the ultrasonic energy conducting rod 102 is the same.

In a second aspect, embodiments of the present application provide an ultrasonic surgical instrument, including: the ultrasonic scalpel comprises an ultrasonic scalpel host, an excitation switch and an ultrasonic scalpel handle, wherein the ultrasonic scalpel handle comprises an ultrasonic scalpel rod described in any one of the embodiments of the first aspect, and the ultrasonic scalpel host is connected with the excitation switch and the ultrasonic scalpel handle respectively.

The utility model provides an ultrasonic surgery cutter arbor and ultrasonic surgical instrument, ultrasonic energy output end through with the ultrasonic surgery cutter arbor sets up to top end area and is less than the bottom end area, make the approximate toper of shape of ultrasonic surgery cutter arbor, and two relative sides on the ultrasonic energy output end set up to nonparallel, make the shape of ultrasonic energy output end be approximate for the wedge, the area of cross section has been reduced, thereby make the area with biological tissue contact reduce, help reducing the side direction heat damage, make operation operator fix a position the operation position more accurately, improve the operation precision. And the resistance of ultrasonic energy transmitted to the working surface is reduced, so that the amplitude of the top end of the ultrasonic surgical knife bar is larger, and the transmission efficiency of the ultrasonic energy is improved.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1a is a partial schematic view of one embodiment of an ultrasonic surgical blade according to the present application;

FIG. 1b is a cross-sectional shape schematic of an ultrasonic surgical blade bar according to the present application;

FIG. 2 is a cross-sectional exemplary schematic view of various shapes of an ultrasonic surgical blade bar according to the present application;

FIG. 3 is a schematic view of the overall construction of an ultrasonic surgical blade according to the present application;

FIG. 4 is a schematic structural view of an embodiment of an ultrasonic surgical instrument according to the present application.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the relevant portions of the related inventions are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

FIG. 1a shows a schematic view of the structure of one embodiment of the ultrasonic surgical blade holder of the present application. As shown in fig. 1a, ultrasonic surgical blade bar 100 includes an ultrasonic energy output port 101 and an ultrasonic energy conducting rod 102. Wherein the ultrasonic energy output end 101 is disposed on the ultrasonic energy conducting rod 102, the cross-sectional area of the ultrasonic energy output end 101 gradually decreases from the bottom 1011 to the top 1012, and two opposite sides on the ultrasonic energy output end 101 are not parallel, and the distance between the tops of the two opposite sides is smaller than the distance between the bottoms, wherein the two opposite sides are two sides adjacent to the working surface of the ultrasonic energy output end 101.

As shown in FIG. 1a, the cross-sectional area of the top portion 1012 is smaller than the cross-sectional area of the bottom portion 1011. The cross section of the ultrasonic energy output end 101 is shown in fig. 1b, wherein 1013 is a side corresponding to the working surface of the ultrasonic

energy output end

101, and 1014 and 1015 are sides corresponding to two side surfaces adjacent to the working surface. The distance L1 between the tops of 1014 and 1015 is greater than the distance L2 between the bottoms, thereby resulting in an approximately wedge-shaped ultrasonic energy output end 101.

The shape of the cross-section of the ultrasonic energy output port 101 may be various shapes. As shown in fig. 2, cross-sections of various shapes are shown, wherein the cross-sections shown 201, 202 may form a knife edge. 203. The bottom of the cross section shown at 204 is relatively smooth, i.e. the working surface is an arc-shaped surface. 205. The cross-section shown at 206 combines the features of the blade and the arc. The ultrasonic surgical knife bar with the cross sections in various shapes can be suitable for different occasions, so that the needed knife bar can be selected according to the requirement in operation.

Fig. 3 is a schematic view illustrating an overall structure of an ultrasonic surgical knife bar provided by an embodiment of the present application, wherein 301 is a top view, and 302 is a bottom view. When the ultrasonic surgical knife bar is used, the working surface is contacted with the biological tissue, and simultaneously, the energy generated by the ultrasonic vibration is transmitted to the biological tissue, so that the biological tissue is cut and/or coagulated.

In some optional implementations of this embodiment, in a cross section of the ultrasonic energy output end 101, one of two sides corresponding to the two opposite side faces coincides with one side of a minimum circumscribed rectangle of the cross section. As shown in fig. 2, in which a dashed rectangle is defined as the smallest circumscribed rectangle of each cross-section, one side of the cross-section shown by 202, 204, 206 coincides with one side of the smallest circumscribed rectangle.

The shape of the cross section that this implementation provided can be when processing ultrasonic surgery cutter arbor, carries out wedge shape's processing to a side on the basis of the material that the cross section is the rectangle, and relative another side need not to adjust with the angle between other faces to reduce the processing degree of difficulty, reduced the processing cost.

In some optional implementations of this embodiment, in a cross section of the ultrasonic energy output end 101, two corresponding sides of the two opposite side surfaces are not overlapped with a side of a minimum circumscribed rectangle of the cross section, and two corresponding sides of the two opposite side surfaces are symmetrical with respect to a longitudinal centerline (a straight line shown as 2011 in fig. 2) of the cross section. As shown in fig. 2, each side of the cross-section shown by 201, 203, 205 is not coincident with the side of the minimum circumscribed rectangle, and the sides are symmetrical.

This implementation mode is through all personally submitting certain angle with the vertical plane to two relative sides to two side symmetries can make the contact site of ultrasonic energy output end and biological tissue be located the center of the bottom of ultrasonic energy output end, make ultrasonic energy conduct the center of bottom more evenly, help improving the transmission efficiency of ultrasonic energy.

In this embodiment, the ultrasonic energy output port 101 may be disposed on the ultrasonic energy conducting rod 102 in various manners, for example, the ultrasonic energy output port 101 may be fixed on the ultrasonic energy conducting rod 102 by welding, screwing, or the like.

In some alternative implementations of the present embodiment, the ultrasonic energy output port 101 and the ultrasonic energy conducting rod 102 are integrally formed. The ultrasonic surgical knife bar in an integrated forming mode can reduce the loss of ultrasonic energy in the transmission process caused by the connection of various components.

In some alternative implementations of the present embodiment, the ultrasonic energy output end 101 is a curved structure. Set to the bending structure, can be so that the operation in-process, ultrasonic energy output end obtains bigger amplitude and can fully contact with biological tissue, and the field of vision is clear, improves the operation effect.

In some alternative implementations of this embodiment, the cross-sectional area of the interface of the ultrasonic energy output end 101 and the ultrasonic energy conducting rod 102 is the same. That is, the transmitted ultrasonic energy on the ultrasonic energy transmission rod can be transmitted to the ultrasonic energy output end without loss.

The ultrasonic surgical knife bar provided by the above embodiment of the application, the ultrasonic energy output end through with ultrasonic surgical knife bar sets up to be less than the bottom end area for the top area, make the shape of ultrasonic surgical knife bar approximate toper, and two relative sides on the ultrasonic energy output end set up to nonparallel, make the shape of ultrasonic energy output end approximate wedge, the area of cross section has been reduced, thereby make the area that contacts with biological tissue reduce, help reducing the side direction heat damage, make the operation operator fix a position the operation position more accurately, improve the operation precision. And the resistance of ultrasonic energy transmitted to the working surface is reduced, so that the amplitude of the top end of the ultrasonic surgical knife bar is larger, and the transmission efficiency of the ultrasonic energy is improved.

With further reference to FIG. 4, a schematic structural diagram of one embodiment of an ultrasonic surgical instrument 400 of the present application is shown. The ultrasonic surgical device 400 includes: an ultrasonic scalpel host 401, an excitation switch 402 and an ultrasonic scalpel handle 403, wherein the ultrasonic scalpel handle 403 comprises an ultrasonic scalpel bar 4031. The ultrasonic surgical blade 4031 is the same as the ultrasonic surgical blade 4031 described in the embodiment shown in fig. 1 a. The ultrasonic scalpel main body 401 is connected with an excitation switch 402 and an ultrasonic scalpel handle 403 respectively. The ultrasonic-blade main unit 401 can perform functional configuration on the ultrasonic-blade handle 403, for example, setting output energy and the like. The ultrasonic blade activation switch may include, but is not limited to, at least one of the following: foot switches, hand switches, etc.

The ultrasonic surgical instrument provided by the above embodiment of the application, through introducing the ultrasonic surgical cutter bar that contains wedge-shaped ultrasonic energy output end, can make the amplitude on the top of ultrasonic surgical cutter bar bigger, improve the transmission efficiency of ultrasonic energy and the precision of operation during the operation.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. An ultrasonic surgical blade comprising an ultrasonic energy output (101) and an ultrasonic energy conducting rod (102), wherein the ultrasonic energy output (101) is arranged on the ultrasonic energy conducting rod (102), the cross-sectional area of the ultrasonic energy output (101) decreases gradually from the bottom (1011) to the top (1012), and two opposite sides on the ultrasonic energy output (101) are not parallel, and the distance between the tops of the two opposite sides is smaller than the distance between the bottoms, wherein the two opposite sides are two sides adjacent to the working face of the ultrasonic energy output (101), and the two opposite sides are planes.

2. The ultrasonic surgical blade holder according to claim 1, wherein, in a cross section of the ultrasonic energy output end (101), one of two corresponding sides of the two opposite sides coincides with one side of a minimum circumscribed rectangle of the cross section.

3. The ultrasonic surgical blade holder according to claim 1, wherein, in a cross section of the ultrasonic energy output end (101), two corresponding sides of the two opposite sides are not coincident with a side of a minimum circumscribed rectangle of the cross section, and two corresponding sides of the two opposite sides are symmetrical with respect to a longitudinal center line of the cross section.

4. The ultrasonic surgical blade holder according to claim 1, wherein the ultrasonic energy output (101) and the ultrasonic energy conducting rod (102) are integrally formed.

5. The ultrasonic surgical blade holder according to claim 1, wherein the ultrasonic energy output (101) is a curved structure.

6. The ultrasonic surgical blade holder according to any one of claims 1 to 5, wherein the cross-sectional area of the interface of the ultrasonic energy output (101) and the ultrasonic energy conducting rod (102) is the same.

7. An ultrasonic surgical instrument, comprising: an ultrasonic scalpel host, an excitation switch and an ultrasonic scalpel handle, wherein the ultrasonic scalpel handle comprises the ultrasonic scalpel bar as claimed in any one of claims 1-6, and the ultrasonic scalpel host is connected with the excitation switch and the ultrasonic scalpel handle respectively.