CN106691544B

CN106691544B - Ultrasonic knife head

Info

Publication number: CN106691544B
Application number: CN201710092358.5A
Authority: CN
Inventors: 周一新; 曹群; 战松涛
Original assignee: Jiangsu SMTP Technology Co Ltd
Current assignee: Jiangsu SMTP Technology Co Ltd
Priority date: 2017-02-21
Filing date: 2017-02-21
Publication date: 2020-06-26
Anticipated expiration: 2037-02-21
Also published as: KR20190002534U; CN106691544A; JP3225178U; WO2018153248A1; KR200494083Y1; DE212018000162U1

Abstract

The invention discloses an ultrasonic knife head which comprises a knife head end part, a knife rod and a knife body, wherein the knife head end part is positioned at one end of the knife rod, the knife head end part is gradually transited from a cylindrical shape of the knife rod to a wedge shape or a flat sheet shape, and is bent and extended along the longitudinal direction of the knife rod to form a multi-bending knife head, and the most terminal end of the bending and extension is a cutting end. The invention has simple structure, easy processing, convenient use and high safety, and can complete the operation of various special operation positions.

Description

Ultrasonic knife head

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to an ultrasonic scalpel head.

Background

In modern society, with the development of medical technology, orthopedic surgery presents diversified trends, and correspondingly, when carrying out the operation, the operation such as cutting, grinding, curettage, centre gripping need be carried out to the affected part to the scalpel head that adopts different shapes to different orthopedics state of an illness. In surgery, ultrasonic blades are often used to cut and reshape soft, hard, and human-like tissues. The cutting blade of the existing ultrasonic knife mainly comprises a sheet-shaped blade as shown in fig. 1, and at present, the sheet-shaped blade mainly comprises a straight rod, and the sheet-shaped blade of the straight rod can only complete the operation in the current visible state and can not complete the operation such as lateral scraping and the like.

Disclosure of Invention

In order to solve the technical problems, the invention designs an ultrasonic scalpel head which can complete surgical operations at various special operation positions.

In order to solve the technical problems, the ultrasonic scalpel head comprises a tool bit end part, a tool bit and a tool body, wherein the tool bit end part is located at one end of the tool bit, the tool bit end part is gradually transited from a cylindrical shape of the tool bit to a wedge shape or a flat sheet shape, the tool bit end part is bent and extended along the longitudinal direction of the tool bit to form a multi-bending tool bit, and the most terminal end of the bent and extended tool bit is a cutting end.

In the ultrasonic-blade bit of the present invention, preferably, the front end surface and the left and right side surfaces of the cutting end are cut surfaces.

In the ultrasonic-blade tip of the present invention, it is preferable that the tip end portion has a cutting edge provided on a lower surface thereof in a longitudinal direction, and a foremost end and a lowermost end of the cutting edge are cut surfaces.

In the ultrasonic-blade head of the present invention, preferably, the cross section of the cutting edge has a rectangular structure, an inverted triangular structure, or a trapezoidal structure having a wide top and a narrow bottom, and the foremost end of the cutting edge is closed.

In the ultrasonic blade head of the present invention, preferably, the cutting surface is processed into a straight plane structure, an arc surface structure, a wedge-shaped blade-like structure, or a tooth-like structure.

In the ultrasonic-blade head of the present invention, preferably, the upper and lower surfaces of the cutting tip are circular, elliptical, rectangular, or trapezoidal in shape.

In the ultrasonic scalpel head according to the present invention, preferably, the cutter bar has a hollow structure, and a water injection hole is formed in an end portion of the cutter head at a side connected to the cutter bar, so as to directly introduce a washing liquid to the end portion of the cutter head.

In the ultrasonic blade bit 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 scalpel head of the present invention, preferably, the other end of the scalpel bar is connected to the scalpel body, the scalpel bar and the scalpel body are connected in a smooth transition manner through an inclined surface or an arc surface, and the other end of the scalpel body is connected to a specific ultrasonic host through an ultrasonic transducer.

In the ultrasonic scalpel head, preferably, the other end of the scalpel body is provided with a connecting thread which is an embedded connecting thread or an externally embedded connecting thread; the knife body is also provided with a clamping part.

The ultrasonic scalpel head has the following beneficial effects:

(1) the invention has simple structure and easy processing.

(2) The ultrasonic knife head can completely converge the energy generated by the ultrasonic transducer to the end part (the most effective working part) of the knife head, so that the front end part of the knife has the strongest energy output, and the strongest working effect is achieved.

(3) The bending type design of the end part of the cutter head can help a doctor to cut various parts which are difficult to reach, so that the operation time is shortened, the operation intensity of the doctor is reduced, and the operation safety is improved.

(4) The lower surface of the end part of the cutter head is longitudinally provided with the raised cutting edge, so that the cutting end of the ultrasonic cutter head is T-shaped, the ultrasonic cutter head is T-shaped and bent, the ultrasonic cutter head can be suitable for special occasions, cut bone cement can be cut off and easily taken out, the operation intensity of a doctor is reduced, and the operation safety is improved.

(5) The cutting surface can be processed into a straight plane or a circular arc surface or a wedge-shaped knife edge or a tooth-shaped cutting surface, can be suitable for more occasions, and is convenient to use.

(6) The ultrasonic scalpel head is of a hollow structure, the end part of the scalpel head is provided with the water injection hole, so that perfusion liquid can be ensured to flow out from the surface of the rear part of the end part of the scalpel head, the upper surface and/or the lower surface of the cutting end of the end part of the scalpel head is provided with the longitudinal through groove or the semi-through groove, so that water can be fully injected, the head part of the whole scalpel head and the contacted tissues are completely cleaned and cooled in real time during surgery, the excised tissues are ensured to be discharged immediately, the visual field at the incision is clear and clean, and the remained tissues to be kept are protected from being damaged, so that the surgical risk is further reduced, and the surgical safety and the success rate are improved.

Drawings

FIG. 1 is a schematic view of a prior art ultrasonic blade tip;

FIG. 2 is a perspective view of an ultrasonic blade tip in accordance with a first embodiment of the present invention;

FIG. 3 is a front view of an ultrasonic blade tip in accordance with a first embodiment of the present invention;

FIG. 4 is a top view of an ultrasonic blade tip in accordance with a first embodiment of the present invention;

FIG. 5 is a top view of an ultrasonic blade tip in accordance with a second embodiment of the present invention;

FIG. 6 is a perspective view of a blade head of an ultrasonic blade in accordance with a third embodiment of the present invention;

FIG. 7 is a front view of an ultrasonic blade head of a third embodiment of the present invention;

FIG. 8 is a right side view of an ultrasonic blade tip in accordance with a third embodiment of the present invention;

FIG. 9 is a bottom view of an ultrasonic blade head of a third embodiment of the present invention;

fig. 10 is a perspective view of a blade head of an ultrasonic scalpel according to a fourth embodiment of the present invention;

FIG. 11 is a front view of an ultrasonic blade head of a fourth embodiment of the present invention;

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

In the figure:

1-the end of the cutter head; 11-cutting end; 12-a cut surface; 13-a bend; 14-water injection hole; 15-a cutting edge; 2, a cutter bar; 3, a knife body; 31-connecting screw threads; 32-clamping part.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, 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, 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, a removable connection, or an integral 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention is described in further detail below with reference to specific embodiments and with reference to the attached drawings.

Fig. 2 to 4 show an ultrasonic blade head according to a first embodiment of the present invention. Fig. 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 fig. 2 to 4, an ultrasonic blade head according to a first embodiment of the present invention includes a blade end portion 1, a blade holder 2, and a blade body 3. Wherein, one end of the cutter head end part 1 is connected with one end of a cylindrical cutter bar 2, and the other end of the cutter head end part 1 gradually transits from the cylindrical shape to a wedge shape or a flat sheet shape and extends along the longitudinal direction of the cutter bar 2 in a bending way. As shown in fig. 2 and 3, the present embodiment includes two bending portions 13. The most terminal end of the curved extension is a cutting end 11, the cutting end 11 is used for cutting and removing the tissue, and the upper and lower surfaces of the cutting end 11 are rectangular in shape in the present embodiment. The front end face and the left and right side faces of the cutting end 11 are cut faces 12. The cut surface 12 may be formed as a straight plane substantially perpendicular to the upper and lower surfaces, such as left and right cut surfaces in fig. 2 to 4. The cutting surface 12 may also be shaped like a wedge to increase the cutting speed, such as the front cutting surface in fig. 2 to 4. The cutting surface 12 may also be toothed to facilitate cutting and prevent slippage. The cutting surface 12 may also be formed as a circular arc, which facilitates circumferential cutting operations in a circular hole wound. The other end of the cutter bar 2 is connected with a cutter body 3, and the cutter body 3 is connected with a specific ultrasonic host machine through an ultrasonic transducer. According to the ultrasonic scalpel head in the first embodiment of the present invention, the energy generated by the ultrasonic transducer can be totally converged at the end of the scalpel head (the most effective working portion), so that the front end portion of the scalpel has the strongest energy output, and the strongest working effect is achieved. In addition, the bending design of the end part of the cutter head can help a doctor cut various parts which are difficult to reach, thereby shortening the operation time, reducing the operation intensity of the doctor and improving the operation safety.

In the ultrasonic scalpel head according to the first embodiment of the present invention, the scalpel bar 2 has a hollow structure, a water injection hole 14 is formed at the connection side between the scalpel head end 1 and the scalpel bar 2, and a washing liquid is directly injected into the scalpel head end 1. In order to fully inject water, the cutting end 11 may be longitudinally provided with a through groove or a semi-through groove. One end of the cutter bar 2 is connected with the end part 1 of the cutter head, and the other end of the cutter bar 2 is connected with the cutter body 3. The cutter bar 2 and the cutter body 3 are in smooth transition through an inclined plane or an arc surface. The other end of the knife body 3 is provided with a connecting thread 31, and the connecting thread 31 can be embedded or externally embedded. In this embodiment, an externally-embedded connection thread structure is adopted. When the operation is performed, the connecting thread 31 at the tail part of the knife body 3 is connected with a specific ultrasonic transducer, the ultrasonic transducer is screwed by a corresponding wrench, and then the ultrasonic transducer is connected with a specific ultrasonic main machine, so that the operation can be performed. As above, the ultrasonic scalpel head is of a hollow structure, the water injection hole is formed in the end part of the scalpel head, the perfusion liquid can be ensured to flow out from the surface of the rear part of the end part of the scalpel head, the longitudinal penetrating groove or the semi-penetrating groove is formed in the upper surface and/or the lower surface of the cutting end of the end part of the scalpel head, water can be fully injected, the head of the whole scalpel head and tissues contacted with the head of the scalpel head are completely in the cleaning and cooling of the perfusion liquid in real time during an operation, the excised tissues are ensured to be discharged immediately, the visual field at the incision is clear and clean, the tissues are protected from being damaged, the operation risk is further reduced, and the operation safety and the success rate are improved.

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 upper and lower surfaces of the cutting end 11 of the blade end portion 1 are elliptical, and the cutting surface 12 is a circular arc surface, which is more advantageous for circumferential cutting in a circular-hole-shaped wound. Of course, the upper and lower surfaces of the cutting end 11 may have a circular or trapezoidal shape. Similarly, in the ultrasonic scalpel head of the present embodiment, the cutter bar 2 may have a hollow structure, and a water injection hole 14 may be formed on the side of the connection between the head end 1 and the cutter bar 2 to directly inject the flushing fluid into the head end 1. In order to fully inject water, the cutting end 11 may be longitudinally provided with a through groove or a semi-through groove. One end of the cutter bar 2 is connected with the end part 1 of the cutter head, and the other end of the cutter bar 2 is connected with the cutter body 3. The cutter bar 2 and the cutter body 3 are in smooth transition through an inclined plane or an arc surface. The other end of the knife body 3 is provided with a connecting thread 31, and the connecting thread 31 can be embedded or externally embedded. Similarly, the ultrasonic scalpel head with the hollow structure can ensure that perfusate flows out from the surface of the rear part of the end part of the scalpel head, the longitudinal through groove or the semi-through groove is formed in the upper surface and/or the lower surface of the cutting end of the end part of the scalpel head, water can be fully injected, the head part of the whole scalpel head and tissues contacted with the head part are completely in cleaning and cooling of the perfusate in real time during an operation, the tissues cut off are ensured to be discharged immediately, the visual field at the cut part is clear and clean, and the tissues to be remained and protected from being damaged, so that the operation risk can be reduced.

Fig. 6 to 9 show an ultrasonic blade head according to a third embodiment of the present invention. Fig. 6 is a schematic perspective view of an ultrasonic blade head of a third embodiment, fig. 7 is a front view of the ultrasonic blade head of the third embodiment, fig. 8 is a right side view of the ultrasonic blade head of the third embodiment, and fig. 9 is a bottom view of the ultrasonic blade head of the third embodiment. The ultrasonic blade head according to the third embodiment of the present invention is substantially the same as the ultrasonic blade head according to the first embodiment, except that the bending direction of the blade tip 1 is opposite to the bending direction of the blade tip 1 according to the first embodiment, and a convex cutting edge 15 is longitudinally provided on the lower surface of the blade tip 1 in this embodiment so that the cutting tip according to this embodiment has a T-shaped cross section, and the ultrasonic blade head has a T-shaped bent blade head. The cross section of the cutting edge 15 is a trapezoidal structure with a wide top and a narrow bottom, and the foremost end and the lowermost end of the cutting edge 15 are the cutting surfaces 12. The forwardmost end of the cutting edge 15 converges into a wedge-shaped edge-like configuration as shown in figures 8 and 9. The cutting surface 12 at the lowest end of the cutting edge 15 can be processed into a straight plane structure, an arc surface structure or a wedge-shaped blade-shaped structure. In the present embodiment, the blade 3 is further provided with a clamping portion 32. In the ultrasonic scalpel head according to the third embodiment of the present invention, the protruding cutting edge is longitudinally provided on the lower surface of the end portion of the scalpel head, so that the cutting end of the ultrasonic scalpel head is T-shaped, and the ultrasonic scalpel head is T-shaped bent, and thus, the ultrasonic scalpel head can be applied to a special occasion, cut bone cement can be easily taken out, the operation intensity of a doctor is reduced, and the operation safety is improved.

In the ultrasonic-blade head according to the present embodiment, the blade bar 2 may have a hollow structure, and a water injection hole may be formed on the side of the connection between the blade head end 1 and the blade bar 2 to directly inject the washing liquid into the blade head end 1. In order to fully inject water, the cutting end 11 may be provided with a through groove or a semi-through groove in the longitudinal direction. From this, can abundant water injection, make during the operation whole tool bit head and the tissue that contacts be in the washing and the cooling of perfusate completely in real time, ensure that the tissue that is amputated is instant to be discharged, and incision department field of vision is clear clean, and the protection remains will remain the tissue and not damaged to can reduce the operation risk.

Fig. 10 to 12 show an ultrasonic blade head according to a fourth embodiment of the present invention. Fig. 10 is a perspective view of an 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 surfaces 12 on the left and right sides of the cutting end 11 are formed into a toothed structure, and the blade body 3 is further provided with a holding portion 32. In the ultrasonic knife head according to the fourth embodiment of the present invention, since the cutting surfaces on the left and right sides of the cutting end are processed into the tooth-like structures, the energy generated by the ultrasonic transducer can be totally converged at the tooth tip part (the most effective working part) of the tooth-like structure of the cutting end 11 at the end of the knife head, so that the knife front end part of the knife has the strongest energy output, and the strongest working effect is achieved.

In conclusion, the bending type design of the end part of the cutter head can help a doctor cut various parts which are difficult to reach, so that the operation time is shortened, the operation intensity of the doctor is reduced, and the operation safety is improved. The lower surface of the end part of the cutter head is longitudinally provided with the raised cutting edge, so that the cutting end of the ultrasonic cutter head is in a T-shaped structure, the ultrasonic cutter head is in a T-shaped bent cutter head, the ultrasonic cutter head is suitable for special occasions, the cut whole circle of bone cement can be cut off and is easy to take out, the operation intensity of a doctor is reduced, and the operation safety is improved. In addition, the cutting surfaces can be respectively processed into straight planes or arc surfaces or wedge-shaped cutting edges or tooth-shaped structures, so that the cutting tool is suitable for more occasions and is convenient to use.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An ultrasonic scalpel head comprises a scalpel head end part, a scalpel rod and a scalpel body, and is characterized in that,

the end part of the cutter head is positioned at one end of the cutter bar, the end part of the cutter head is gradually transited from the column shape of the cutter bar into a wedge shape or a flat sheet shape, and is bent and extended along the longitudinal direction of the cutter bar to form a multi-bending cutter head, the most terminal end of the bending and extension is a cutting end,

the cutting head is characterized in that the front end face and the left and right side faces of the cutting end are cutting faces, the lower surface of the end part of the cutter head is also longitudinally provided with a cutting edge, the section of the cutting end is in a T shape, and the foremost end and the lowermost end of the cutting edge are cutting faces.

2. The ultrasonic blade bit of claim 1,

the cross section of the cutting edge is of a rectangular structure or an inverted triangular structure or a trapezoidal structure with a wide upper part and a narrow lower part, and the foremost end of the cutting edge is folded.

3. The ultrasonic blade head according to claim 1 or 2,

the cutting surface is processed into a straight plane structure, an arc surface structure, a wedge-shaped knife edge structure or a tooth-shaped structure.

4. The ultrasonic blade head according to claim 1 or 2,

the shapes of the upper surface and the lower surface of the cutting end are circular or oval or rectangular or trapezoidal.

5. The ultrasonic blade head according to claim 1 or 2,

the cutter bar is of a hollow structure, and a water injection hole is formed in the end part of the cutter head and the connecting side of the cutter bar so as to directly inject flushing liquid to the end part of the cutter head.

6. The ultrasonic blade bit of claim 5,

and the upper surface and/or the lower surface of the cutting end is/are provided with a longitudinal through groove or a semi-through groove.

7. The ultrasonic blade bit of claim 1, 2, or 6,

the other end of the cutter bar is connected with the cutter body, the cutter bar is connected with the cutter body through an inclined plane or an arc surface in a smooth transition mode, and the other end of the cutter body is connected with a specific ultrasonic host through an ultrasonic transducer.

8. The ultrasonic blade bit of claim 1, 2 or 6,

the other end of the knife body is provided with connecting threads, the connecting threads are embedded connecting threads or externally embedded connecting threads, and the knife body is further provided with a clamping part.