WO2018153250A1

WO2018153250A1 - Ultrasonic scalpel cutting tip

Info

Publication number: WO2018153250A1
Application number: PCT/CN2018/075446
Authority: WO
Inventors: 周一新; 曹群; 战松涛
Original assignee: 江苏水木天蓬科技有限公司
Priority date: 2017-02-21
Filing date: 2018-02-06
Publication date: 2018-08-30
Also published as: CN106890020A

Abstract

Disclosed is a ultrasonic scalpel cutting tip comprising a cutting tip end (1), a handle (2) and a cutting body (3), wherein one end of the handle (2) is connected to the cutting tip end (1) and the other end of the handle (2) is connected to the cutting body (3). The main body of the cutting tip end (1) forms a cylindrical structure, wherein one end of the cylindrical structure forms an inclined surface relative to the central axis. The inclined surface extends towards the central axis or towards a point close to the central axis of the cylindrical structure and goes beyond the flat surface parallel to the central axis or beyond the small angle of the inclined surface approximately parallel to the central axis and extends to the forefront end of the cutting tip end (1) so as to form a cutting end (11). Advantages of the ultrasonic scalpel cutting tip : simple structure, easily processable, convenient to use, highly secure and allows the accomplishment of surgical operation in a plurality of special operating positions.

Description

Ultrasonic cutter head

Technical field

The invention belongs to the technical field of medical instruments, and in particular relates to an ultrasonic knife head.

Background technique

In modern society, with the development of medical technology, orthopedic surgery presents a diversified trend. Accordingly, when performing surgery, it is necessary to use different scalpel heads for different orthopedic conditions to cut, grind and cure the affected area. Clamp and other operations. In surgery, soft tissue, hard tissue, and human-like tissue are often cut and shaped using an ultrasonic knife. The cutting head of the current ultrasonic blade is mainly a blade-shaped cutter head, as shown in FIG. Moreover, at present, such sheet-shaped cutter heads are mostly straight rods, and such straight-plate-shaped cutter heads can only perform operations in the current visible state, and cannot perform surgical operations such as side scraping.

Summary of the invention

In order to solve the above problems of the prior art, the present invention contemplates an ultrasonic knife head that is capable of performing a variety of surgical operations in a particular operational position. The ultrasonic cutter head of the present invention comprises a cutter head end, a cutter bar and a blade body, one end of the cutter bar is connected to the cutter head end, and the other end of the cutter bar is connected with the blade body, wherein The body of the end portion of the cutter head is a cylindrical structure, and one end of the cylindrical structure is formed with an inclined surface inclined with respect to a central axis thereof, the inclined surface extending to a center axis or a central axis of the cylindrical structure The position transitions to a horizontal plane parallel to the central axis or a small angle bevel that is approximately parallel to a horizontal plane parallel to the central axis and extends all the way to the foremost end of the tip end to form a cutting end.

In the ultrasonic blade head of the present invention, preferably, the foremost end of the cutting end is smoothly gathered into a circular arc-shaped blade.

In the ultrasonic blade head of the present invention, preferably, the shank is a hollow structure in which a through hole is formed in the center, and the through hole extends from the opening of the tip end to the front end of the cutting end.

In the ultrasonic blade head of the present invention, preferably, the shank is a hollow structure in which a through hole is formed at a center, and the opening of the through hole extends only to an intermediate position of the cutting end.

In the ultrasonic blade head of the present invention, preferably, the foremost end of the cutting end is a flat head semi-cylindrical shape.

In the ultrasonic blade head of the present invention, preferably, both sides of the cutting end are edged or opened to form a side cutting edge or a side cutting tooth.

In the ultrasonic blade head of the present invention, preferably, the arbor and the tip end are of a unitary structure.

In the ultrasonic blade head of the present invention, preferably, the blade bar and the blade body are smoothly connected by a slope or a circular arc surface.

In the ultrasonic cutter head of the present invention, the other end of the blade body is connected to a specific ultrasonic host through an ultrasonic transducer, and the other end of the blade body is provided with a connecting thread, and the connecting thread is an in-line connecting thread or an external fitting. The thread is connected, and the cutter body is further provided with a clamping portion.

The ultrasonic cutter head has the following beneficial technical effects:

(1) The ultrasonic cutter head of the present invention can concentrate the energy generated by the ultrasonic transducer at the end of the cutter head (the most effective working portion), so that the front end portion of the cutter has the strongest energy output. The strongest working effect, and the ultrasonic blade head of the present invention is easier to process.

(2) In the present invention, the lateral teeth can be opened on the side to facilitate the lateral pulling and cutting during the cutting process, and the lateral arc movement is reduced, which can be applied to more occasions and is more convenient to use.

(3) In the present invention, the arc-shaped design of the tip of the cutter head can help the doctor to perform the tissue ablation operation in the hole-shaped wound more easily, which can increase the accuracy of the operation, shorten the operation time, and improve the safety of the operation. .

(4) The flat-topped semi-cylindrical cutter head of the present invention can have better temperature characteristics.

(5) The ultrasonic cutter head of the present invention has a hollow structure, and a hollow curved groove is arranged at the end of the cutter head to inject the flushing liquid, thereby ensuring that the flushing liquid flows out from the end of the cutter head, which helps to cool the cutter head during the operation. This will further reduce the risk of surgery and improve the safety and success rate of surgery.

DRAWINGS

1 is a schematic structural view of a prior art ultrasonic cutter head;

2 is a perspective view of an ultrasonic blade head according to a first embodiment of the present invention;

Figure 3 is a front elevational view of the ultrasonic blade head of the first embodiment of the present invention;

Figure 4 is a bottom plan view of the ultrasonic blade head of the first embodiment of the present invention;

Figure 5 is a front elevational view of a second embodiment of the ultrasonic blade head of the present invention;

Figure 6 is a perspective view of an ultrasonic blade head according to a third embodiment of the present invention;

Figure 7 is a perspective view of an ultrasonic blade head according to a fourth embodiment of the present invention.

In the picture:

1—cutting end; 11—cutting end; 12—front cutting edge; 13—side cutting edge or cutting tooth; 14—open curved groove; 2—tool bar; 3—blade; 31—connecting thread; - gripping section.

detailed description

The technical solutions of the present invention will be described clearly and completely in conjunction with the accompanying drawings. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the description of the present invention, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. The orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplified description, rather than indicating or implying that the device or component referred to has a specific orientation, in a specific orientation. The construction and operation are therefore not to be construed as limiting the invention. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

The invention will be further described in detail below with reference to specific embodiments and drawings.

2 to 4 show an ultrasonic blade head according to a first embodiment of the present invention. 2 is a perspective view of the ultrasonic blade head according to the first embodiment of the present invention, FIG. 3 is a front view thereof, and FIG. 4 is a bottom view thereof. As shown in FIG. 2 to FIG. 4, the ultrasonic cutter head according to the embodiment of the present invention includes a cutter head end portion 1, a cutter bar 2 and a blade body 3. One end of the cutter bar 2 is connected to the cutter tip end portion 1, and the other end of the cutter bar 2 is connected. Connected to the blade 3, the blade 3 is connected to a specific ultrasound host via an ultrasonic transducer. The body of the tip end portion 1 is a cylindrical structure, one end of which is formed with an inclined surface inclined with respect to a central axis thereof, the inclined surface extending to a central axis or center of the cylindrical structure When the position near the axis is turned to a horizontal plane or an approximately parallel small-angle bevel parallel to the central axis, and extending to the foremost end of the tip end 1 to form a cutting end 11. The foremost end of the cutting end 11 is gradually smoothly (re-tilted) into a circular arc-shaped blade as the leading end cutting edge 12. In the present embodiment, the inclined surface extends to a position near the lower side of the central axis of the cylindrical structure to a horizontal plane and extends to the foremost end of the tip end portion 1. A smooth transition between the inclined surface and the horizontal plane or the approximately horizontal inclined surface through the circular arc surface. According to the ultrasonic cutter head of the present invention, the energy generated by the ultrasonic transducer can be concentrated at the end of the cutter head (the most effective working portion), so that the front end portion of the cutter has the strongest energy output, reaching the maximum The working effect is strong, and the ultrasonic blade head of the present invention is easy to process.

Further, in the ultrasonic blade head according to the first embodiment of the present invention, the shank 2 is a hollow structure in which a through hole is formed in the center, and the through hole continues to the front end of the tip end portion 1, and the through hole is at the tip end portion 1 The opening forms a hollow arcuate groove 14 for perfusion of the rinsing liquid. In the present embodiment, the hollow arcuate groove 14 continues to a thicker diameter to the bottom of the arcuate thin blade at the foremost end of the tip end portion 1, so that the cut end becomes a semi-cylindrical arc piece. The shank 2 and the tip end portion 1 may be of a unitary structure or may be assembled separately. In the present embodiment, the holder 2 and the tip end portion 1 are of a unitary structure. The hollow structure of the ultrasonic cutter head ensures that the perfusate flows out from the rear surface of the end of the cutter head, so that sufficient water can be injected, and the entire cutter head and the contacted tissue are completely in the cleaning and cooling of the perfusate in real time during the operation. In this case, it is ensured that the excised tissue is immediately discharged, the visual field at the incision is clear and clean, and the remaining tissue to be retained is protected from damage, thereby reducing the risk of surgery.

Further, in the ultrasonic blade head according to the first embodiment of the present invention, one end of the holder 2 is connected to the end portion 1 of the cutter head, and the other end of the holder 2 is connected to the blade 3. A smooth transition between the shank 2 and the blade 3 through a bevel or a circular arc surface. The other end of the blade body 3 is provided with a connecting thread 31, and the connecting thread 31 may be in-line or in-line. In the present embodiment, an externally connected threaded structure is employed. A clamping portion 32 is also provided on the blade body 3. In operation, the connecting thread 31 of the blade body 3 is connected to a specific ultrasonic transducer, and is tightened with a corresponding wrench, and then the ultrasonic transducer is connected to a specific ultrasonic host to perform work.

Fig. 5 shows an ultrasonic blade head of a second embodiment of the present invention. As shown in FIG. 5, the ultrasonic blade head of the second embodiment is substantially identical to the ultrasonic blade head of the first embodiment, except that the foremost end of the cutting end 11 of the tip end portion 1 is a flat top half. In the cylindrical structure, both sides of the cutting end 11 are edged or opened to form side cutting edges or cutting teeth 13, which facilitate cutting on both sides. The flat-topped semi-cylindrical flat-top cutter head has better temperature characteristics, is more conducive to heat dissipation and cooling of the cutter head during cutting, can protect the cutter head from being damaged, and protect the cut tissue subjected to surgery from damage. It can extend the life of the cutter head and improve the success rate of the operation.

Fig. 6 is a schematic perspective view showing an ultrasonic blade head according to a third embodiment of the present invention. As shown in FIG. 6, the ultrasonic blade head of this embodiment is substantially identical to the ultrasonic blade head of the first embodiment, except that the inclined surface of the tip end portion 1 extends all the way to the central axis of the cylindrical structure or When the vicinity of the central axis, it is turned into a small-angle bevel which is approximately parallel to the central axis and extends to the foremost end of the tip end portion 1 to form a cutting end 11, and the foremost end of the cutting end 11 is gradually smoothly gathered into a circular arc-shaped blade. Front cutting edge 12. The two sides of the cutting end 11 are edged to form a side cutting edge 13 for facilitating surgical operations such as cutting or side scraping on both sides.

Further, in the ultrasonic blade head according to the second and third embodiments of the present invention, the shank 2 is a hollow structure in which a through hole is formed in the center, and the through hole continues to the front end of the tip end portion 1, and the through hole is at the tip end. The intermediate portion of the portion 1 is open to form a hollow arcuate groove 14 for infusing the rinsing liquid. The hollow arcuate groove 14 extends only in a thinner diameter to the intermediate position of the tip end 1 such that the cutting end becomes an approximately semi-cylindrical center with a long groove. The shank 2 and the tip end portion 1 may be of a unitary structure or may be assembled separately. In the second and third embodiments, the holder 2 and the tip end portion 1 are of a unitary structure. Also, according to the hollow structure ultrasonic blade head of the present embodiment, it is possible to ensure that the perfusate flows out from the rear surface of the tip end portion, thereby being able to sufficiently inject water, and the entire head portion and the contacted tissue are in real time during surgery. It is completely in the cleaning and cooling of the perfusate, ensuring that the excised tissue is immediately discharged, the visual field of the incision is clear and clean, and the remaining tissue is protected from damage, thereby reducing the risk of surgery.

Fig. 7 is a perspective view showing the ultrasonic blade head of the fourth embodiment of the present invention. As shown in FIG. 7 , the ultrasonic blade head in this embodiment is substantially identical to the ultrasonic blade head of the third embodiment, except that the two sides of the cutting end 11 are formed with teeth to form side cutting teeth 13 for convenient sides. Perform surgical operations such as cutting or side scraping. According to the ultrasonic cutter head of the embodiment, the energy generated by the ultrasonic transducer can be concentrated at the end of the cutter head (the most effective working portion), so that the front end portion of the cutter has the strongest energy output, reaching the maximum Strong working effect and the invention is easy to process. In the ultrasonic cutter head of the invention, the lateral teeth can be opened laterally, which facilitates the lateral pulling and cutting during the cutting process and reduces the lateral arc movement, and can be applied to more occasions and is convenient to use. In the ultrasonic cutter head of the present invention, the arc-shaped design of the tip of the cutter head can help the doctor to perform the tissue ablation operation in the hole-shaped wound more easily, which can increase the accuracy of the operation, shorten the operation time, and improve the operation. Security.

The above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the above are modified, or some or all of the technical features are equivalently replaced, and the modifications or substitutions do not deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

An ultrasonic cutter head comprising a cutter head end, a cutter bar and a blade body, wherein one end of the cutter bar is coupled to the cutter head end, and the other end of the cutter bar is coupled to the blade body, wherein The body of the tip end portion is a cylindrical structure, and one end of the cylindrical structure is formed with an inclined surface inclined with respect to a central axis thereof, the inclined surface extending to a central axis or a central axis of the cylindrical structure The nearby position transitions to a horizontal plane parallel to the central axis or a small angular bevel that is approximately parallel to the central axis and extends all the way to the foremost end of the tip end to form a cut end.
The ultrasonic blade head according to claim 1, wherein

The foremost end of the cutting end is smoothly gathered into a circular arc-shaped thin blade.
The ultrasonic blade head according to claim 2, wherein

The shank is a hollow structure in which a through hole is formed in the center, and the through hole extends at an opening of the end of the tip to a front end of the cutting end.
The ultrasonic blade head according to claim 2, wherein

The shank is a hollow structure in which a through hole is formed in the center, and the opening of the through hole at the end of the tip extends only to an intermediate position of the cutting end.
The ultrasonic blade head according to claim 1, wherein

The foremost end of the cutting end is a flat head semi-cylindrical shape.
The ultrasonic blade head according to claim 5, wherein

The shank is a hollow structure in which a through hole is formed in the center, and the opening of the through hole at the end of the tip extends only to an intermediate position of the cutting end.
The ultrasonic blade head according to any one of claims 1 to 6, wherein

Both sides of the cutting end are edged or teethed to form a side cutting edge or a side cutting tooth.
The ultrasonic blade head according to any one of claims 1 to 6, wherein

The shank and the tip end are of unitary construction.
The ultrasonic blade head according to any one of claims 1 to 6, wherein

The shank and the blade body are smoothly connected by a slope or a circular arc surface.
The ultrasonic blade head according to any one of claims 1 to 6, wherein

The other end of the blade is connected to a specific ultrasonic host through an ultrasonic transducer, and the other end of the blade is provided with a connecting thread, and the connecting thread is an in-line connecting thread or an external connecting thread, and the blade body is further A clamping portion is provided.