CN211271015U

CN211271015U - Ultrasonic knife

Info

Publication number: CN211271015U
Application number: CN201921880393.4U
Authority: CN
Inventors: 罗惠君
Original assignee: Shanghai Shengzhe Medical Technology Co ltd
Current assignee: Shanghai Shengzhe Medical Technology Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-08-18
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses an ultrasonic knife, which belongs to the field of medical appliances and comprises a shell; a cutter located at one end of the housing; and the energy converter is fixed in the shell, is connected with the cutter and is used for providing energy for the cutter. Through setting up the transducer inside the casing, reduced the transducer because of dismantling the wearing and tearing that the installation caused, and then improved the stability and the life of transducer to improve the stability and the life of supersound sword, reduced the cost of supersound sword.

Description

Ultrasonic knife

Technical Field

The utility model relates to the field of medical equipment, especially, relate to an ultrasonic scalpel.

Background

With the development of medical industry, ultrasonic knives have been widely used in clinical operations for cutting blood vessels, cell tissues, etc., and the cell tissues can be denatured and coagulated by the rapid vibration of a transducer in the ultrasonic knife, and at this time, the denatured cell tissues are cut to reduce the bleeding of the cell tissues.

In the related art, an ultrasonic blade generally includes a housing, a transducer located outside the housing, a cutter connected to the transducer, a handle connected to the housing, and a function button fixed to the housing by a pin. When the ultrasonic scalpel is used, the transducer is arranged on the shell and is connected with the cutter, and then the cutter is controlled by the handle to contact and clamp the cell tissue to be treated so as to treat the cell tissue.

Therefore, the transducer in the related art is located outside the shell, so that when the ultrasonic knife is used, the transducer needs to be assembled on the shell firstly, the transducer is abraded when the transducer is repeatedly installed and detached for many times, the stability of the transducer is reduced, the ultrasonic knife needs to be frequently replaced, and the cost of the ultrasonic knife is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ultrasonic knife, through with the transducer setting inside the casing, reduced the transducer because of dismantling the wearing and tearing that the installation caused, and then improved the stability and the life of transducer to ultrasonic knife's stability and life have been improved.

As the conception, the utility model adopts the technical proposal that:

an ultrasonic blade comprising:

a shell body, a plurality of first connecting rods and a plurality of second connecting rods,

a cutter located at one end of the housing;

the energy converter is fixed in the shell, is connected with the cutter and is used for providing energy for the cutter, and comprises a main body and two piezoelectric ceramics fixed on the main body;

one of the two piezoelectric ceramics is electrically connected with a first pole of a power supply, the other piezoelectric ceramics is electrically connected with a second pole of the power supply, and the first pole and the second pole are opposite in electrical property.

Preferably, the housing includes a casing and a plurality of support plates fixed to the casing, each of the support plates having a through hole therein, the transducer being fixed in the through hole.

Preferably, the main body comprises a connected capacity section and a connecting section;

the side surface of the capacity section is provided with a plurality of grooves, and the piezoelectric ceramics are positioned in the grooves;

one end of the connecting section is connected with the cutter and used for providing ultrasonic waves for the cutter.

Preferably, the capacity section and the connecting section are columnar, and the diameter of the cross-sectional circle of the capacity section is larger than that of the connecting section.

Preferably, the main body further comprises a transition section, and the transition section is located between the energy production section and the connection section.

Preferably, the support plates comprise a first support plate and a second support plate, the first support plate is used for supporting the capacity section, and the second support plate is used for supporting the transition section.

Preferably, the ultrasonic blade further comprises an energy switch fixed to the housing;

the energy switch is connected with the transducer and used for controlling the on-off of the transducer.

Preferably, a fixing block is arranged on the shell, a through groove is formed in one side of the fixing block, the energy switch comprises a pressing part and a protruding structure connected with the pressing part, and the protruding structure is located in the through groove;

when the pressing portion is pressed along a first direction, the protruding structure rotates relative to the protruding structure, and the transducer is started.

The beneficial effects of the utility model include at least:

the utility model provides a transducer in is fixed in the inside of casing, when using, need not to install the transducer on the casing again alone, has reduced the number of times that the installation was dismantled to the transducer, and then has reduced the transducer because of dismantling the wearing and tearing that the installation caused, and then has improved the stability and the life of transducer to the stability and the life of supersound sword have been improved.

Additionally, the utility model provides a transducer among the ultrasonic scalpel includes two piezoceramics, and piezoceramics's cost is higher, consequently, compares in the condition that prior art ultrasonic scalpel includes four piezoceramics, and the cost of transducer is lower for ultrasonic scalpel's cost is lower.

Drawings

Fig. 1 is a schematic structural diagram of an ultrasonic scalpel according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a transducer provided by an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a capacity segment and a piezoelectric ceramic according to an embodiment of the present invention.

In the figure:

10. a housing; 11. a housing; 12. a support plate; 20. a transducer; 21. a main body; 211. a capacity section; 212. a connecting section; 213. a transition section; 22. piezoelectric ceramics; 23. a connecting disc; 30. an energy switch; 40. a handle.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

An embodiment of the utility model provides an ultrasonic knife, the transducer of this ultrasonic knife is located inside the casing, has consequently reduced the wearing and tearing that the transducer caused because of dismantling, and then causes the probability of damage.

Referring to fig. 1 and 2, the ultrasonic blade includes a housing 10, a blade (not shown), and a transducer 20. Wherein the cutter is located at one end of the housing 10 for contacting and treating the tissue. A transducer 20 is fixed inside the housing 10 and is connected to the tool for supplying energy to the tool, and the transducer 20 comprises a body 21 and two piezoceramics 22 fixed to the body 21. One of the two piezoelectric ceramics 22 is electrically connected to a first pole of the power supply, and the other is electrically connected to a second pole of the power supply, the first pole and the second pole being opposite in electrical polarity.

In conclusion, the transducer 20 in the embodiment is fixed inside the housing 10, and when the ultrasonic scalpel is used, the transducer 20 does not need to be separately installed on the housing 10 again, so that the times of disassembling and assembling the transducer 20 are reduced, the abrasion of the transducer 20 caused by disassembling and assembling is reduced, the stability and the service life of the transducer are improved, and the stability and the service life of the ultrasonic scalpel are improved.

In addition, the transducer in the ultrasonic blade provided by the embodiment includes two piezoelectric ceramics, and the cost of the piezoelectric ceramics is higher, so that compared with the case that the ultrasonic blade in the prior art includes four piezoelectric ceramics, the cost of the transducer is lower, so that the cost of the ultrasonic blade is lower.

It should be noted that piezoelectric ceramic 22 has a piezoelectric effect, and when the voltage across piezoelectric ceramic 22 changes, the volume thereof will change accordingly. When the frequency of the voltage supplied from the power supply is periodically changed, the size of the piezoelectric ceramics 22 is periodically changed according to the change, and the piezoelectric ceramics can endure a large amplitude generated at the time of resonance.

As shown in fig. 3, one of the two piezoelectric ceramics 22 is electrically connected to a first pole of a power source, and the other is electrically connected to a second pole of the power source, wherein the first pole of the power source is opposite to the second pole of the power source. When the energy production section 211 comprises two piezoelectric ceramics 22, the requirement can be met, that is, the frequency can meet the requirement under heavy load, and meanwhile, the stability of the amplitude is ensured. Due to the higher cost of the piezoelectric ceramics 22, the manufacturing cost of the ultrasonic blade can be reduced when the energy production section 211 includes less piezoelectric ceramics 22.

In the present embodiment, as shown in fig. 1, the housing 10 may include a case 11 and a plurality of support plates 12 fixed to the case 11. Also, each support plate 12 has a through hole therein, with the transducer 20 secured within the through hole. Wherein the shape of the through hole can be set according to the shape of the transducer 20 to ensure the effect of the supporting plate 12 fixing the transducer 20. Further, the centroids of the through holes of the plurality of support plates 12 may be located on the same horizontal line, i.e., the transducer 20 is horizontally fixed in the housing.

Optionally, the support plate 12 may be provided with a cushion at the location where it contacts the transducer 20 to prevent wear of the support plate 12 on the transducer 20.

In the present embodiment, as shown in fig. 2, the main body 21 includes a capacity section 211 and a connection section 212 connected in sequence.

Wherein, the measuring surface of the energy production section 211 is provided with two parallel grooves, the piezoelectric ceramics 22 are positioned in the grooves, and the two piezoelectric ceramics 22 are positioned in two different grooves; the connecting section 212 is connected to the cutter for ultrasonically transmitting ultrasonic waves to the cutter so that the cutter can treat the tissue with the ultrasonic waves.

Further, as shown in fig. 2, the main body 21 further includes a transition section 213 between the power generation section 211 and the connection section 212, and the transition section 213 is used for transmitting the ultrasonic waves generated by the power generation section 211 to the connection section 212. Also, as shown in fig. 2, a connecting disc 23 may be disposed between the connecting section 212 and the transition section 213, and the connecting disc 23 may be used for connecting the connecting section 212 and the transition section 213 and further supporting the connecting section 212 and the transition section 213, in this case, the connecting position of the connecting section 212 and the transition section 213 may not be provided with the supporting plate 12.

And, the support plate 12 includes a first support plate for supporting the capacity section 211 and a second support plate for supporting the transition section 213.

Still further, the capacity section 211 and the connection section 212 are cylindrical, and the diameter of the cross-sectional circle of the capacity section 211 is larger than that of the connection section 212. So that the transducer 20 can occupy less space while fulfilling its function and can have a lower weight. Alternatively, the transition section 213 may be cylindrical, and the diameter of the cross-sectional circle of the transition section 213 is between the diameters of the cross-sectional circles of the energy production section 211 and the connection section 212.

In the present embodiment, with continued reference to fig. 1, the ultrasonic blade further includes an energy switch 30 fixed to the housing 10. Wherein the energy switch 30 is connected to the transducer 20 for controlling the activation or deactivation of the transducer 20. When the energy switch 30 is in an open state, the transducer 20 can be controlled to be activated; when the power switch 30 is not in the on state, the transducer 20 can be controlled to be off.

Alternatively, the energy switch 30 may have a plurality of open states, for example, the energy switch 30 has a first open state and a second open state. Also, the energy emitted by the transducer 20 when the energy switch 30 is in the first open state is higher than the energy emitted by the transducer 20 when the energy switch 30 is in the second open state. That is, the energy switch 30 has a high-low gear.

Further, be equipped with the fixed block on the casing 10, and one side of fixed block has a groove that link up, and energy switch 30 is including pressing the splenium and with pressing the protruding structure of splenium connection, protruding structure is located the groove that links up. When the pressing portion is pressed in the first direction, the protruding structure rotates relative to the through groove, the transducer 20 starts, when the pressing portion is pulled in the second direction, the protruding structure resets, and at the moment, the transducer 20 is closed. The second direction is a direction opposite to the first direction.

In this embodiment, as shown in FIG. 1, the ultrasonic blade may further include a handle 40 fixed to the housing. The handle 40 can be used to control the blade in the cutter to clamp the tissue so that the tissue does not move when the ultrasonic waves are transmitted to the tissue.

When using the ultrasonic blade provided in this embodiment, the user can first extend the blade into the body cavity, and then press the handle 40 to adjust the blade (e.g., the jaws) of the blade to open and clamp the tissue. Thereafter, the energy switch 30 is pressed in the first direction to rapidly vibrate the transducer 20 and generate ultrasonic waves to mature and denature the cellular tissue, and then the cellular tissue is cut, preventing a bleeding situation from occurring when the cellular tissue is cut. After the tissue is severed, the power switch 30 is actuated in a second direction to terminate the application of ultrasound to the blade head, after which the ultrasonic blade is removed from the cavity.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An ultrasonic blade, comprising:

a shell (10) which is provided with a plurality of grooves,

a cutter located at one end of the housing (10);

a transducer (20) fixed inside the housing (10) and connected to the tool for supplying energy to the tool, the transducer (20) comprising a body (21) and two piezoceramics (22) fixed on the body (21);

one of the two piezoceramics (22) is electrically connected with a first pole of a power supply, and the other is electrically connected with a second pole of the power supply, wherein the first pole and the second pole have opposite electrical property.

2. The ultrasonic blade of claim 1, wherein the housing (10) comprises a housing (11) and a plurality of support plates (12) secured to the housing (11), each support plate (12) having a through hole therein, the transducer (20) being secured within the through hole.

3. The ultrasonic blade of claim 2, wherein the main body (21) comprises a connecting energy generating section (211) and a connecting section (212);

the side surface of the energy production section (211) is provided with two grooves, and the piezoelectric ceramics (22) are positioned in the grooves;

one end of the connecting section (212) is connected with the cutter and is used for providing ultrasonic waves to the cutter.

4. The ultrasonic blade according to claim 3, wherein the energy generating section (211) and the connecting section (212) are cylindrical, and a diameter of a cross-sectional circle of the energy generating section (211) is larger than a diameter of a cross-sectional circle of the connecting section (212).

5. The ultrasonic blade of claim 3, wherein the main body (21) further comprises a transition section (213), the transition section (213) being located between the power generation section (211) and the connection section (212).

6. The ultrasonic blade of claim 5, wherein the support plate (12) comprises a first support plate for supporting the energy generating section (211) and a second support plate for supporting the transition section (213).

7. The ultrasonic blade of claim 1, further comprising an energy switch (30) secured to the housing (10);

the energy switch (30) is connected with the transducer (20) and used for controlling the on or off of the transducer (20).

8. The ultrasonic blade according to claim 7, wherein a fixing block is arranged on the housing (10), a through groove is formed on one side of the fixing block, the energy switch (30) comprises a pressing portion and a protruding structure connected with the pressing portion, and the protruding structure is located in the through groove;

when the pressing part is pressed along a first direction, the convex structure rotates relative to the convex structure, and the transducer (20) is started.