CN212234596U

CN212234596U - Circular ultrasonic surgical knife bar and ultrasonic surgical instrument

Info

Publication number: CN212234596U
Application number: CN202020336076.2U
Authority: CN
Inventors: 吴增成; 吴云芳
Original assignee: Tonghui Hangzhou Medical Technology Co ltd
Current assignee: Tonghui Hangzhou Medical Technology Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-12-29
Anticipated expiration: 2030-03-17

Abstract

The embodiment of the application discloses circular ultrasonic surgical knife pole and ultrasonic surgical instrument. One specific embodiment of the circular ultrasonic surgical knife bar comprises an ultrasonic energy output end 101 and an ultrasonic energy transmission rod 102, wherein an anti-adhesion coating 103 is attached to the surface of the ultrasonic energy output end 101, the ultrasonic energy output end 101 is arranged on the ultrasonic energy transmission rod 102, the cross section of the ultrasonic energy output end 101 is circular, and a groove 1011 is formed in the ultrasonic energy output end 101. The embodiment can avoid the risk that the cutter bar of the cutting area part of the ultrasonic cutter is bonded with soft tissue and/or blood when cutting the soft tissue and coagulating blood vessels to cause failure of cutting the tissue and coagulating the blood vessels when the ultrasonic cutter works.

Description

Circular 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 a circular ultrasonic surgical knife bar and an ultrasonic surgical instrument.

Background

The cutting part of the existing circular open ultrasonic knife bar does longitudinal telescopic motion at the frequency ranging from 47kHz to 56kHz under the driving of ultrasonic waves, so that the part of the knife bar contacting with biological tissues bears the acting force during cutting. In addition, the cutting region of the conventional circular open ultrasonic blade bar causes soft tissue, blood, etc. to be adhered to the blade bar when cutting soft tissue and coagulating blood vessels, thereby causing failure in cutting tissue and coagulating blood vessels.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a circular 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 embodiment provides a circular ultrasonic surgical knife bar, which includes an ultrasonic energy output end 101 and an ultrasonic energy conducting rod 102, wherein an anti-adhesion coating 103 is attached to a surface of the ultrasonic energy output end 101, the ultrasonic energy output end 101 is disposed on the ultrasonic energy conducting rod 102, a cross section of the ultrasonic energy output end 101 is circular, and a groove 1011 is disposed on the ultrasonic energy output end 101.

In some embodiments, the cross-sectional area of the ultrasonic energy output end 101 gradually decreases from the bottom 1012 to the top 1013.

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 bottom 1012 of the ultrasonic energy output port 101 has a diameter of 2.3mm to 3mm, the top 1013 of the ultrasonic energy output port 101 has a diameter of 1.45mm to 2.2mm, and the length of the cutting portion of the ultrasonic energy output port 101 is greater than 14 mm.

In some embodiments, the release coating 103 comprises a polymeric material.

In some embodiments, anti-adhesion coating 103 is composed of tungsten disulfide, molybdenum disulfide, graphite, and fluorinated polymers.

In some embodiments, the anti-bond coating 103 comprises a ceramic material, and the ceramic material comprises at least one of: chromium carbide, tungsten carbide, titanium nitride, aluminum oxide, and chromium nitride.

In some embodiments, the anti-adhesion coating 103 comprises a metal, wherein the metal comprises at least one of: aluminum, stainless steel, and molybdenum.

In a second aspect, embodiments of the present application provide an ultrasonic surgical instrument, including: an ultrasonic scalpel main body 201, an excitation switch 202 and an ultrasonic scalpel handle 203, wherein the ultrasonic scalpel handle includes the circular ultrasonic scalpel bar 2031 described in any one of the embodiments of the first aspect, and the ultrasonic scalpel main body is connected with the excitation switch and the ultrasonic scalpel handle respectively.

The circular ultrasonic surgical cutter bar and the ultrasonic surgical instrument provided by the embodiment of the application can avoid the cutter bar of the cutting area part of the ultrasonic cutter from bonding with soft tissue and/or blood when cutting the soft tissue and coagulating the blood vessel in the working of the ultrasonic cutter and causing the cutting of the tissue and the risk of failure of blood vessel coagulation by arranging the anti-bonding coating on the ultrasonic energy output end.

Drawings

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

FIG. 1 is a schematic structural view of one embodiment of a circular ultrasonic surgical blade holder according to the present application;

FIG. 2 is a schematic structural view of one 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. 1 shows a schematic structural view of one embodiment of the circular ultrasonic surgical blade holder of the present application. As shown in fig. 1, the circular ultrasonic surgical knife bar 100 includes an ultrasonic energy output end 101 and an ultrasonic energy transmission rod 102, wherein an anti-adhesion coating 103 is attached to a surface of the ultrasonic energy output end 101, the ultrasonic energy output end 101 is disposed on the ultrasonic energy transmission rod 102, a cross section of the ultrasonic energy output end 101 is circular, and a groove 1011 is disposed on the ultrasonic energy output end 101.

In this embodiment, since the cross section of the ultrasonic energy output end 101 is circular, the thickness of the cross section of the ultrasonic energy output end 101 in all directions is substantially the same during the operation, so that the force applied to the ultrasonic energy output end 101 can be more uniformly distributed around, and the risk of fracture is less. Due to the presence of the grooves 1011, the blunt edge may be formed, as shown in cross-section 1014 in fig. 1, so that the blunt edge may be brought into contact with biological tissue for cutting during surgery.

In some alternative implementations of the present embodiment, the cross-sectional area of the ultrasonic energy output end 101 gradually decreases from the bottom 1012 to the top 1013. I.e. the ultrasonic energy output port 101 is approximately conical in shape. The ultrasonic energy output end of the ultrasonic surgical cutter bar is set to be smaller than the area of the bottom end, so that the shape of the ultrasonic surgical cutter bar is approximate to a cone, the amplitude of the top end of the ultrasonic surgical cutter bar can be larger, and the transmission efficiency of ultrasonic energy is improved.

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 circular ultrasonic surgical knife bar in the integrated forming mode can reduce the loss of ultrasonic energy in the transmission process caused by the connection of all parts.

In some alternative implementations of the present embodiment, the ultrasonic energy output end 101 is a curved structure. Set up to the bending structure, can be so that in the operation 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 bottom 1012 of the ultrasonic energy output port 101 has a diameter of 2.3mm to 3mm, the top 1013 of the ultrasonic energy output port 101 has a diameter of 1.45mm to 2.2mm, and the length of the cut portion of the ultrasonic energy output port 101, i.e., the portion L shown in fig. 1, is greater than 14 mm. L as shown in fig. 1 is the length of the cut portion. The cutting part of the existing circular open ultrasonic knife rod has smaller structural size, and only blood vessels with the maximum diameter of 3mm can be closed in the working process. Because the cutter bar cutting part of the open ultrasonic cutter does longitudinal telescopic motion at the frequency of 45-60kHz range under the driving of sound waves, the stress at each cross section is different, and the cutter bar fracture phenomenon often occurs at the cross section with large bearing force in the cutting area. This implementation increases the size of the cutting portion of the ultrasonic energy output port 101 and increases the diameter of the ultrasonic energy output port 101, thus enabling the blade bar tip to withstand greater forces and reducing the risk of fracture.

In some alternative implementations of the present embodiment, the anti-adhesion coating 103 comprises a polymeric material. The cost of the polymer material is lower, and the manufacturing cost of the circular ultrasonic surgical knife bar can be reduced. Alternatively, the anti-adhesive coating 103 may be composed of at least one of the following materials: copolymer of tetrafluoroethylene TFE and hexafluoropropylene HFP FEP, liquid FEP, FEP/ceramic composite, liquid FEP ceramic epoxy composite, polytetrafluoroethylene PTFE and or PTFE/ceramic composite.

In some alternative implementations of the present embodiment, the anti-adhesion coating 103 is composed of tungsten disulfide, molybdenum disulfide, graphite, and a fluorinated polymer. The anti-adhesion coating in the implementation mode is made of polymer materials and other inorganic materials, so that the mechanical strength of the anti-adhesion coating can be improved, the service life of the anti-adhesion coating is prolonged, and the service life of the cutter bar is prolonged.

In some alternative implementations of the present embodiment, the anti-bonding coating 103 includes a ceramic material, and the ceramic material includes at least one of: chromium carbide, tungsten carbide, titanium nitride, aluminum oxide, and chromium nitride. The ceramic material has high mechanical strength and is not easy to damage, and the service life of the circular ultrasonic surgical knife bar can be prolonged.

In some alternative implementations of the present embodiment, the anti-adhesion coating 103 comprises a metal. Wherein the metal comprises at least one of: aluminum, stainless steel, and molybdenum. Because the mechanical strength of metal is high, ductility is strong, adopts metal material's anti-adhesion coating, can improve the toughness of anti-adhesion coating, reduces and damages the probability, improves the life of cutter arbor.

The circular ultrasonic surgical knife bar provided by the above embodiment of the application can avoid the risk of failure of cutting and vessel coagulation of tissues caused by the fact that the knife bar of the ultrasonic knife cutting area part is bonded with soft tissues and/or blood when cutting the soft tissues and coagulating the vessels in the work of the ultrasonic knife by arranging the anti-bonding coating on the ultrasonic energy output end.

With further reference to FIG. 2, a schematic structural diagram of one embodiment of an ultrasonic surgical instrument 200 of the present application is shown. The ultrasonic surgical instrument 300 includes: an ultrasonic scalpel main body 301, an excitation switch 302 and an ultrasonic scalpel handle 303, wherein the ultrasonic scalpel handle includes the circular ultrasonic scalpel bar 3031 described in the embodiment of fig. 1, and the ultrasonic scalpel main body is connected with the excitation switch and/or the ultrasonic scalpel handle respectively. The ultrasonic-blade main unit can perform functional configuration on the ultrasonic-blade handle 303, for example, setting output energy and the like. The ultrasonic blade activation switch may include, but is not limited to, at least one of: foot switches, hand switches, etc.

The ultrasonic surgical instrument provided by the above embodiment of the present application, by introducing the ultrasonic knife handle described in the embodiment shown in fig. 1, can avoid the risk of failure of cutting and vessel occlusion caused by adhesion of the knife bar of the ultrasonic knife cutting region part with soft tissue and or blood when cutting soft tissue and vessel occlusion during surgery using the ultrasonic knife handle.

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. The utility model provides a circular ultrasonic surgical knife pole, characterized in that, circular ultrasonic surgical knife pole includes ultrasonic energy output (101) and ultrasonic energy conduction pole (102), wherein, the surface adhesion of ultrasonic energy output (101) has anti-adhesion coating (103), ultrasonic energy output (101) set up on ultrasonic energy conduction pole (102), the cross section of ultrasonic energy output (101) is circular, just be provided with recess (1011) on ultrasonic energy output (101).

2. The circular ultrasonic surgical blade holder according to claim 1, wherein the cross-sectional area of the ultrasonic energy output end (101) is gradually reduced from the bottom (1012) to the top (1013).

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

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

5. The circular ultrasonic surgical blade holder according to claim 1, wherein the bottom (1012) of the ultrasonic energy output port (101) has a diameter of 2.3mm to 3mm, the top (1013) of the ultrasonic energy output port (101) has a diameter of 1.45mm to 2.2mm, and the cutting portion of the ultrasonic energy output port (101) has a length of more than 14 mm.

6. The circular ultrasonic surgical blade holder according to any one of claims 1 to 5, wherein the anti-adhesive coating (103) comprises a polymeric material.

7. The circular ultrasonic surgical blade holder according to claim 6, wherein the anti-sticking coating (103) is composed of tungsten disulfide, molybdenum disulfide, graphite, and fluorinated polymer.

8. The circular ultrasonic surgical blade holder according to any one of claims 1 to 5, wherein the anti-sticking coating (103) comprises a ceramic material, and the ceramic material comprises at least one of: chromium carbide, tungsten carbide, titanium nitride, aluminum oxide, and chromium nitride.

9. The circular ultrasonic surgical blade holder according to any one of claims 1 to 4, wherein the anti-adhesive coating (103) comprises a metal, wherein the metal comprises at least one of: aluminum, stainless steel, and molybdenum.

10. An ultrasonic surgical instrument, comprising: an ultrasonic scalpel host (201), an excitation switch (202) and an ultrasonic scalpel handle (203), wherein the ultrasonic scalpel handle comprises the circular ultrasonic scalpel bar (2031) of one of claims 1 to 9, and the ultrasonic scalpel host is connected with the excitation switch and the ultrasonic scalpel handle respectively.