WO2018153248A1

WO2018153248A1 - Ultrasonic scalpel cutting tip

Info

Publication number: WO2018153248A1
Application number: PCT/CN2018/075444
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: CN106691544B; KR20190002534U; CN106691544A; DE212018000162U1; JP3225178U; KR200494083Y1

Abstract

Disclosed is a ultrasonic scalpel cutting tip comprising a cutting tip end (1), a handle (2) and a cutting body (3), wherein the scalpel cutting tip (1) is placed at one end of the handle (2), the scalpel cutting tip (1) extending from and along the handle (2) with cylindrical configuration turning gradually into a wedge or flat blade configuration and forms a multi-bent cutting tip bent in its longitudinal direction, the final end in bending extension forming 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. Correspondingly, when performing the operation, it is necessary to use different types of scalpel heads for cutting, grinding, scraping, clamping, and the like for different orthopedic conditions. In surgery, soft tissue, hard tissue, and human-like tissue are often cut and shaped using an ultrasonic knife. At present, the cutting head of the ultrasonic blade is mainly a blade-shaped cutter head, as shown in Fig. 1. Moreover, at present, such a blade-shaped cutter head is mainly a straight rod, and such a straight-shaped blade-shaped cutter head can only be completed. In the current visual state, the operation such as side scraping cannot be performed.

Summary of the invention

In order to solve the above-mentioned technical problems, the present invention has devised an ultrasonic blade head which is capable of performing surgical operations at a plurality of special operating positions.

In order to solve the above-mentioned technical problems, the ultrasonic cutter head of the present invention comprises a cutter head end, a cutter bar and a blade body, wherein the cutter head end is located at one end of the cutter bar, and the cutter head end portion is gradually The cylindrical shape of the shank transitions into a wedge shape or a flat plate shape, and is bent and extended along the longitudinal direction of the shank to form a multi-bending cutter head, and the end of the curved extension is a cutting end.

In the ultrasonic blade head of the present invention, it is preferable that the front end surface and the left and right side surfaces of the cutting end are cut surfaces.

In the ultrasonic blade head of the present invention, preferably, the lower surface of the tip end portion is further provided with a cutting edge in a longitudinal direction, and the foremost end and the lowermost end of the cutting edge are cutting faces.

In the ultrasonic blade head of the present invention, preferably, the cross section of the cutting edge is a rectangular structure or an inverted triangular structure or a trapezoidal structure having an upper width and a lower width, and the foremost end of the cutting edge is gathered.

In the ultrasonic blade head of the present invention, preferably, the cutting face is machined into a straight planar structure or a circular arc surface structure or a wedge-shaped blade-like structure or a tooth-like structure.

In the ultrasonic blade head of the present invention, preferably, the shape of the upper and lower surfaces of the cutting end is circular or elliptical or rectangular or trapezoidal.

In the ultrasonic cutter head of the present invention, preferably, the cutter bar has a hollow structure, and at the end of the cutter head, a water injection hole is opened at a connection side with the cutter bar to directly introduce the flushing liquid into the blade. The end of the cutter head.

In the ultrasonic blade head of the present invention, preferably, the upper surface and/or the lower surface of the cutting end is provided with a longitudinal through groove or a semi-through groove.

In the ultrasonic cutter head of the present invention, preferably, the other end of the cutter bar is connected to the blade body, and the blade bar and the blade body are smoothly connected by a slope or a circular arc surface, and the other end of the blade body passes The ultrasound transducer is coupled to a particular ultrasound host.

In the ultrasonic blade head of the present invention, preferably, 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 connecting thread; the knife body is further provided with a clamping portion .

The ultrasonic cutter head has the following beneficial effects:

(1) The present invention has a simple structure and is easy to process.

(2) 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 work effect.

(3) In the ultrasonic cutter head of the present invention, the bent design of the end of the cutter head can help the doctor to cut a plurality of hard-to-reach parts, shorten the operation time, reduce the surgical operation intensity of the doctor, and improve the operation. Security.

(4) In the ultrasonic blade head of the present invention, a convex cutting edge is longitudinally disposed on the lower surface of the end portion of the cutter head, so that the cutting end of the ultrasonic cutter head is T-shaped, so that the ultrasonic cutter head becomes T The type of bending head can be applied to special occasions, and the cut bone cement can be cut off to make it easy to be taken out, which reduces the doctor's surgical operation intensity and improves the safety of the operation.

(5) The cutting surface of the present invention can be processed into a straight plane or a circular arc surface or a wedge-shaped blade-shaped or tooth-shaped cutting surface, and can be applied to more occasions and is convenient to use.

(6) The ultrasonic blade head of the present invention has a hollow structure, and a water injection hole is provided at the end of the cutter head to ensure that the perfusion liquid flows out from the rear surface of the end portion of the cutter head. A vertical through groove or a semi-through groove is formed in the upper surface and/or the lower surface of the cutting end of the tip end portion, so that sufficient water injection can be performed. During the operation, the entire head and the contacted tissue are completely in the cleaning and cooling of the perfusate in real time, so that the excised tissue can be immediately discharged, the visual field at the incision is clear and clean, and the remaining tissue to be retained can be protected. Without being damaged, the risk of surgery is further reduced, and the safety and success rate of surgery are further improved.

DRAWINGS

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

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 plan view of an ultrasonic blade head according to a first embodiment of the present invention;

Figure 5 is a plan view of an ultrasonic blade head according to a second embodiment 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 front elevational view of an ultrasonic blade head according to a third embodiment of the present invention;

Figure 8 is a right side view of the ultrasonic blade head of the third embodiment of the present invention;

Figure 9 is a bottom plan view of an ultrasonic blade head according to a third embodiment of the present invention;

Figure 10 is a perspective view of the ultrasonic cutter head of the new fourth embodiment of the present invention;

Figure 11 is a front elevational view of an ultrasonic blade head according to a fourth embodiment of the present invention;

Figure 12 is a plan view of an ultrasonic blade head according to a fourth embodiment of the present invention.

In the picture:

1 to the end of the cutter head; 11 to the cutting end; 12 to the cutting surface; 13 to the curved portion; 14 to the water injection hole; 15 to the cutting edge; 2 to the arbor; 3 to the blade; 31 to the connecting thread; unit.

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 present invention will be further described in detail below through the specific embodiments and the accompanying 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 of the first embodiment, FIG. 3 is a front view of the ultrasonic blade head of the first embodiment, and FIG. 4 is a plan view of the ultrasonic blade head of the first embodiment. As shown in FIGS. 2 to 4, the ultrasonic blade head according to the first embodiment of the present invention includes a tip end portion 1, a holder 2, and a blade 3. Wherein, one end of the cutter head end 1 is connected to one end of the cylindrical cutter bar 2, and the other end of the cutter head end portion 1 gradually transitions from a cylindrical shape to a wedge shape or a flat plate shape, and is bent and extended in the longitudinal direction of the cutter bar 2. As shown in FIGS. 2 and 3, the ultrasonic blade head of the present embodiment includes two bendings to form two bent portions 13. The most end of the curved extension is the cutting end 11, which is used to cut the tissue. In the ultrasonic blade head of the present embodiment, the shape of the upper and lower surfaces of the cutting end 11 is a rectangle. The front end face and the left and right side faces of the cut end 11 are the cut faces 12. The cutting face 12 can also be machined into a straight plane that is substantially perpendicular to the upper and lower surfaces, such as the cutting faces on the left and right sides of FIGS. 2 to 4. The cutting face 12 can also be machined into a wedge-shaped blade shape to speed up the cutting speed, such as the cutting face of the front end in FIGS. 2 to 4. The cutting face 12 can also be machined into a tooth shape to facilitate cutting and prevent slippage. The cutting surface 12 can also be machined into a circular arc surface, which is advantageous for performing a circumferential cutting operation in a circular hole shaped wound. The other end of the knife bar 2 is connected to the blade body 3, and the blade body 3 is connected to a specific ultrasound host through an ultrasonic transducer. According to the ultrasonic cutter head in the first embodiment 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 to achieve the strongest working results. In addition, the curved design of the end of the cutter head can help doctors cut a variety of hard-to-reach parts, shorten the operation time, reduce the surgical operation intensity of the doctor, and improve the safety of the operation.

In the ultrasonic blade head according to the first embodiment of the present invention, the knife bar 2 has a hollow structure, and a water injection hole 14 is opened on the connecting side of the blade end portion 1 and the tool bar 2, and the flushing liquid is directly injected into the tip end portion 1 . In order to be able to sufficiently inject water, the cutting end 11 may have a through groove or a semi-through groove in the longitudinal direction. One end of the cutter bar 2 is connected to the tip end portion 1, and the other end of the cutter bar 2 is connected to the blade body 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. During the surgical operation, the connecting thread 31 of the blade 3 is connected to a specific ultrasonic transducer and tightened with a corresponding wrench, and then the ultrasonic transducer is connected to a specific ultrasonic host to perform the operation. As described above, the ultrasonic cutter head has a hollow structure, and a water injection hole is provided at the end of the cutter head to ensure that the perfusion liquid flows out from the rear surface of the cutter head end, and the upper end and/or the lower surface of the cut end of the cutter head end portion. A vertical through-hole or semi-through-through groove is provided to fully inject water, and the entire head and the contacted tissue are completely in the cleaning and cooling of the perfusion solution in real time during the operation, thereby ensuring the removed tissue. Immediate discharge. The visual field at the incision is clear and clean, so that the remaining tissue to be retained can be protected from damage, which further reduces the risk of surgery and improves the safety and success rate of the operation.

Fig. 5 is a plan view of an ultrasonic blade head according to a second embodiment of the present invention. The ultrasonic blade head of this embodiment is substantially identical to the ultrasonic blade head of the first embodiment of the present invention, except that the shape of the upper and lower surfaces of the cutting end 11 of the tip end portion 1 is elliptical, and the cutting surface 12 is a circle. The curved surface is more conducive to the circumferential cutting operation in the circular hole shaped wound. Of course, the shape of the upper and lower surfaces of the cutting end 11 may also be a circular shape, a trapezoidal shape or the like. Similarly, in the ultrasonic cutter head of the present embodiment, the cutter bar 2 may also have a hollow structure, and a water injection hole 14 is opened on the connection side of the cutter head end portion 1 and the cutter bar 2, so that the flushing liquid is directly injected into the cutter head end. Department 1. In order to be able to sufficiently inject water, a through groove or a semi-through groove may be longitudinally opened on the cutting end 11. One end of the cutter bar 2 is connected to the tip end portion 1, and the other end of the cutter bar 2 is connected to the blade body 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. Also, 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. The upper surface of the cutting end of the tip and/or the longitudinal through-hole or semi-through groove provided on the lower surface ensure sufficient water injection. Thereby, the entire head and the contacted tissue can be completely in the cleaning and cooling of the perfusate in real time during the operation, ensuring that the excised tissue is immediately discharged, the visual field at the incision is clear and clean, and the remaining need to be retained can be preserved. The tissue is not damaged and can reduce the risk of surgery.

6 to 9 show an ultrasonic blade head according to a third embodiment of the present invention. 6 is a perspective view of the ultrasonic blade head of the third embodiment, FIG. 7 is a front view of the ultrasonic blade head of the third embodiment, and FIG. 8 is a right side view of the ultrasonic blade head of the third embodiment, FIG. It is a bottom view of the ultrasonic blade head of the third embodiment. The ultrasonic blade head of the third embodiment of the present invention is substantially the same as the ultrasonic blade head of the first embodiment, except that the bending direction of the tip end portion 1 is the same as that of the tip end portion 1 of the first embodiment. The bending direction is reversed, and in the present embodiment, a convex cutting edge 15 is longitudinally disposed on the lower surface of the tip end portion 1, so that the cutting end of the embodiment has a T-shaped cross section, and the ultrasonic blade head is T. Shaped bending head. The cross section of the cutting edge 15 is a wide and narrow trapezoidal structure, and the foremost end and the lowermost end of the cutting edge 15 are the cutting faces 12. The foremost end of the cutting edge 15 is gathered into a wedge-shaped blade structure as shown in Figs. 8 and 9. The cutting face 12 at the lowermost end of the cutting edge 15 can be machined into a straight planar structure or a circular arc surface structure or a wedge-shaped blade-like structure. In the present embodiment, the blade body 3 is further provided with a clamping portion 32. In the ultrasonic cutter head according to the third embodiment of the present invention, a convex cutting edge is longitudinally disposed on a lower surface of the end portion of the cutter head, so that the cutting end of the ultrasonic cutter head is T-shaped, so that the ultrasonic cutter head is formed The T-shaped bending head can be applied to special occasions, and the cut bone cement can be cut and easily taken out. This reduces the intensity of the surgeon's surgical operation and improves the safety of the operation.

In addition, in the ultrasonic cutter head according to the third embodiment of the present invention, the cutter bar 2 may also have a hollow structure, and a water injection hole is opened on the connection side of the cutter head end portion 1 and the cutter bar 2, and the flushing liquid is directly injected into the cutter head. End 1. In order to be able to sufficiently inject water, the cutting end 11 may also have a through groove or a semi-through groove in the longitudinal direction. Thereby, sufficient water can be injected, and the entire head and the contacted tissue are completely in the cleaning and cooling of the perfusion liquid in real time during the operation, ensuring that the excised tissue is immediately discharged, the visual field at the incision is clear and clean, and the remaining can be protected. The tissue that needs to be retained is not damaged, thereby reducing the risk of surgery.

10 to 12 show an ultrasonic blade head according to a fourth embodiment of the present invention. 10 is a perspective view of the ultrasonic blade head of the fourth embodiment, FIG. 11 is a front view of the ultrasonic blade head of the fourth embodiment, and FIG. 12 is a plan view of the ultrasonic blade head of the fourth embodiment. The ultrasonic blade head of the fourth embodiment of the present invention is substantially similar to the ultrasonic blade head of the first embodiment, except that the cutting faces 12 on the left and right sides of the cutting end 11 are processed into a toothed structure on the blade body 3. A grip portion 32 is also provided. According to the ultrasonic blade head of the fourth embodiment of the present invention, since the cutting faces on the left and right sides of the cutting end are processed into a toothed structure, the energy generated by the ultrasonic transducer can be concentrated at the cutting end 11 of the end of the tip. The tooth tip of the toothed structure (the most effective working part) allows the front end of the tool to have the strongest energy output for the strongest working effect.

In summary, the bending design of the end of the cutter head of the invention can help the doctor to cut a plurality of hard-to-reach parts, shorten the operation time, reduce the surgical operation intensity of the doctor, and improve the safety of the operation. In the present invention, a convex cutting edge is longitudinally disposed on the lower surface of the end portion of the cutter head, so that the cutting end of the ultrasonic cutter head has a T-shaped structure, so that the ultrasonic cutter head is a T-shaped bending cutter head, which can It is suitable for special occasions. It can cut the whole ring-shaped bone cement which is cut and make it easy to be taken out, which reduces the doctor's surgical operation intensity and improves the safety of the operation. In addition, the cutting faces in the present invention can be respectively processed into a straight plane or a circular arc surface or a wedge-shaped blade-shaped or tooth-shaped structure, which can be applied to more occasions and is convenient to use.

The above embodiments are merely illustrative of the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that the technical solutions described in the foregoing embodiments may be modified or equivalents may be substituted for some or all of the technical features. These modifications and substitutions do not depart 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

The cutter head end is located at one end of the cutter bar, and the cutter head end portion is gradually transitioned from a cylindrical shape of the cutter bar into a wedge shape or a flat plate shape, and is bent and extended along the longitudinal direction of the cutter bar to form a multi-fold The bending head, the most end of the bending extension is the cutting end.
The ultrasonic blade head according to claim 1, wherein

The front end face and the left and right side faces of the cut end are cut faces.
The ultrasonic blade head according to claim 2, wherein

A cutting edge is also longitudinally disposed on a lower surface of the end portion of the cutter head, and a front end and a lowermost end of the cutting edge are cutting faces.
The ultrasonic blade head according to claim 3, wherein

The cross section of the cutting edge is a rectangular structure or an inverted triangular structure or a trapezoidal structure with an upper width and a lower width, and the foremost end of the cutting edge is gathered.
An ultrasonic blade head according to claim 2, 3 or 4, wherein

The cutting surface is machined into a straight planar structure or a circular arc surface structure or a wedge-shaped blade-like structure or a toothed structure.
The ultrasonic blade head according to claim 1, 2, 3 or 4, wherein

The shape of the upper and lower surfaces of the cutting end is circular or elliptical or rectangular or trapezoidal.
The ultrasonic blade head according to claim 1, 2, 3 or 4, wherein

The arbor is a hollow structure, and a water injection hole is opened at a connecting side of the arbor and the arbor to directly feed the rinsing liquid to the end of the arbor.
The ultrasonic blade head according to claim 7, wherein

A longitudinal through groove or a semi-through groove is formed in the upper surface and/or the lower surface of the cutting end.
The ultrasonic blade head according to claim 1, 2, 3, 4 or 8, wherein

The other end of the arbor is connected to the blade body, and the arbor and the blade body are smoothly connected by a slope or a circular arc surface, and the other end of the blade body is connected to a specific ultrasound host through an ultrasonic transducer.
The ultrasonic cutter head according to claim 6, wherein 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 connecting thread, and the knife body is further provided There is a clamping part.