CN106691544A - Ultrasonic knife head - Google Patents

Abstract

The invention discloses a cutter head of an ultrasonic knife, which comprises a cutter head end, a cutter rod and a blade body, wherein the cutter head end is located at one end of the cutter rod, and the cutter head end gradually The cylindrical shape transitions to a wedge shape or a flat plate shape, and is bent and extended along the longitudinal direction of the knife rod to form a multi-bent bent knife head, and the final end of the curved extension is the cutting end. The invention has the advantages of simple structure, easy processing, convenient use and high safety, and can complete various operations in special operation positions.

Description

A kind of ultrasonic scalpel head

technical field

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

Background technique

In modern society, with the development of medical technology, orthopedic surgery presents a trend of diversification. Correspondingly, when performing surgery, it is necessary to use different shapes of surgical blades to cut, grind, scrape, Clamping and other operations. In surgery, ultrasonic scalpels are often used to cut and shape soft tissue, hard tissue, and human-like tissue. The cutting head of the current ultrasonic knife is mainly a sheet-shaped cutter head, as shown in Figure 1. Moreover, most of these sheet-shaped cutter heads are straight rods at present, and this type of straight rod sheet-shaped cutter head can only complete Operations in the current visible state cannot complete surgical operations such as side curettage.

Contents of the invention

In order to solve the above-mentioned existing technical problems, the present invention designs an ultrasonic scalpel head, which can perform various surgical operations in special operating positions.

In order to solve the above-mentioned technical problems, the ultrasonic knife head of the present invention includes a head end, a knife bar and a knife body, wherein, the knife head end is located at one end of the knife bar, and the knife head end is gradually The cylindrical shape of the cutter bar transitions to 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-bending cutter head, and the final end of the curved extension is a cutting end.

In the ultrasonic knife head of the present invention, preferably, the front end surface and the left and right side surfaces of the cutting end are cutting surfaces.

In the ultrasonic knife head of the present invention, preferably, a cutting edge is arranged longitudinally on the lower surface of the end of the cutting edge, and the frontmost and bottommost ends of the cutting edge are cutting surfaces.

In the ultrasonic knife 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 with a wide top and a narrow bottom, and the front ends of the cutting edges are converged.

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

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

In the ultrasonic knife head of the present invention, preferably, the knife rod is a hollow structure, and at the end of the knife head, there is a water injection hole on the connection side with the knife rod, so as to directly inject the flushing liquid into the The end of the cutter head.

In the ultrasonic knife head of the present invention, preferably, the upper surface and/or the lower surface of the cutting end are provided with longitudinal transparent grooves or semi-permeable grooves.

In the ultrasonic knife head of the present invention, preferably, the other end of the knife bar is connected to the knife body, the knife bar and the knife body are connected by a smooth transition through an inclined surface or a circular arc surface, and the other end of the knife body is connected by The ultrasonic transducer is connected with a specific ultrasonic host.

In the ultrasonic knife head of the present invention, preferably, the other end of the blade is provided with a connecting thread, and the connecting thread is an embedded connecting thread or an externally embedded connecting thread; .

The ultrasonic knife head has the following beneficial effects:

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

(2) The ultrasonic cutter head in the present invention can all gather the energy produced by the ultrasonic transducer at the end of the cutter head (the most effective working part), so that the front end of the cutter has the strongest energy output, reaching Strongest working effect.

(3) The bent design of the end of the cutter head in the present invention can help doctors cut various hard-to-reach parts, shorten the operation time, reduce the operation intensity of the doctor, and improve the safety of the operation.

(4) In the present invention, a protruding cutting edge is longitudinally arranged on the lower surface of the cutter head end, so that the cutting end of the ultrasonic cutter head becomes T-shaped, so that the ultrasonic cutter cutter head becomes a T-shaped bending cutter head, It 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 intensity of the doctor's operation and improves the safety of the operation.

(5) The cutting surface in 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, which is suitable for more occasions and is easy to use.

(6) The cutter head of the ultrasonic knife of the present invention is a hollow structure, and there is a water injection hole on the end of the cutter head, which can ensure that the perfusion liquid flows out from the rear surface of the cutter head end, and the upper surface and/or lower surface of the cutting end of the cutter head end There are longitudinal permeable grooves or semi-permeable grooves on the surface, which can fully inject water. During the operation, the entire head of the knife head and the tissue it touches are completely cleaned and cooled by the perfusate in real time, ensuring that the resected tissue is immediately The field of view at the incision is clear and clean, and the remaining tissue should be protected from damage, so that the risk of surgery is further reduced, and the safety and success rate of surgery are improved.

Description of drawings

Fig. 1 is the structural representation of the ultrasonic scalpel cutter head in the prior art;

Fig. 2 is a three-dimensional schematic view of the ultrasonic scalpel head according to the first embodiment of the present invention;

3 is a front view of the ultrasonic scalpel head according to the first embodiment of the present invention;

Fig. 4 is a top view of the ultrasonic scalpel head according to the first embodiment of the present invention;

Fig. 5 is a top view of the ultrasonic scalpel head according to the second embodiment of the present invention;

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

Fig. 7 is a front view of the ultrasonic scalpel head according to the third embodiment of the present invention;

Fig. 8 is a right view of the ultrasonic scalpel head according to the third embodiment of the present invention;

Fig. 9 is a bottom view of the ultrasonic scalpel head according to the third embodiment of the present invention;

Fig. 10 is a three-dimensional schematic view of the ultrasonic knife head of the fourth embodiment of the present invention;

Fig. 11 is a front view of the ultrasonic scalpel head according to the fourth embodiment of the present invention;

Fig. 12 is a top view of the ultrasonic scalpel head according to the fourth embodiment of the present invention.

In the picture:

1—end of cutter head; 11—cutting end; 12—cutting surface; 13—curved portion; 14—water injection hole; 15—cutting edge; 2—knife shaft; 3—blade body; 31—connecting thread; department.

detailed description

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described implementations are part of the implementations of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection 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. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

2 to 4 show the ultrasonic scalpel head according to the first embodiment of the present invention. Fig. 2 is a schematic perspective view of the ultrasonic scalpel head of the first embodiment, Fig. 3 is a front view of the ultrasonic scalpel head of the first embodiment, and Fig. 4 is a top view of the ultrasonic scalpel head of the first embodiment. As shown in FIGS. 2 to 4 , the ultrasonic knife head according to the first embodiment of the present invention includes a head end 1 , a knife bar 2 and a knife body 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 1 gradually transitions from a cylindrical shape to a wedge shape or a flat plate shape, and bends along the longitudinal direction of the cutter bar 2 . As shown in FIGS. 2 and 3 , the present embodiment includes two bends to form two bends 13 . The end of the curved extension is the cutting end 11, which is used to cut and remove the tissue. In this embodiment, the shape of the upper and lower surfaces of the cutting end 11 is rectangular. The front end surface and the left and right side surfaces of the cutting end 11 are cutting surfaces 12 . The cutting surface 12 can also be processed into a straight plane approximately perpendicular to the upper and lower surfaces, such as the cutting surfaces on the left and right sides in Fig. 2 to Fig. 4 . The cutting surface 12 can also be processed into a wedge-shaped blade shape to speed up the cutting, such as the cutting surface at the front end in FIGS. 2 to 4 . The cutting surface 12 can also be processed into a tooth shape to be more conducive to cutting and prevent slipping. The cutting surface 12 can also be processed into a circular arc surface, which is more conducive to performing a circumferential cutting operation in a circular hole-shaped wound. The other end of the knife bar 2 is connected with the knife body 3, and the knife body 3 is connected with a specific ultrasonic host through an ultrasonic transducer. According to the ultrasonic knife head in the first embodiment of the present invention, all the energy generated by the ultrasonic transducer can be gathered at the end of the knife head (the most effective working part), so that the front end of the knife has the strongest energy. output to achieve the strongest working effect. In addition, the bent design at the end of the cutter head can help doctors cut various hard-to-reach parts, shorten the operation time, reduce the doctor's operation intensity, and improve the safety of the operation.

In the ultrasonic knife head of the first embodiment of the present invention, the knife bar 2 is a hollow structure, and a water injection hole 14 is opened at the connection side of the knife head end 1 and the knife bar 2, and the flushing liquid is directly injected into the knife head end 1 . In order to fully inject water, the cutting end 11 may be longitudinally provided with a transparent groove or a semi-permeable groove. One end of the knife rod 2 is connected to the end portion 1 of the cutter head, and the other end of the knife rod 2 is connected to the blade body 3 . There is a smooth transition between the knife rod 2 and the knife body 3 through an inclined surface or a circular arc surface. The other end of the knife body 3 is provided with a connecting thread 31, and the connecting thread 31 can be an embedded type or an external embedded type. In this embodiment, an externally embedded connecting thread structure is adopted. During operation, connect the connecting thread 31 at the end of the knife body 3 with a specific ultrasonic transducer, and tighten it with a corresponding wrench, and then connect the ultrasonic transducer to a specific ultrasonic host, and then work can be performed. As mentioned above, the head of the ultrasonic knife is a hollow structure, and there is a water injection hole at the end of the head to ensure that the perfusion liquid flows out from the rear surface of the end of the head, and the upper and/or lower surface of the cutting end of the end of the head There are longitudinal transparent grooves or semi-permeable grooves on the top, which can fully inject water. During the operation, the entire head of the knife head and the tissues it touches are completely cleaned and cooled by the perfusate in real time, ensuring that the resected tissues are discharged immediately. , the field of vision at the incision is clear and clean, and the remaining tissues should be protected from damage, so that the risk of surgery is further reduced, and the safety and success rate of surgery are improved.

Fig. 5 is a top view of the ultrasonic scalpel head according to the second embodiment of the present invention. The ultrasonic knife head of this embodiment is basically consistent with the ultrasonic knife head of the first embodiment of the present invention, the difference is that the shape of the upper and lower surfaces of the cutting end 11 of the cutting end 1 is elliptical, and the cutting surface 12 is an arc surface, which is more conducive to circumferential cutting operations in round hole wounds. Certainly, the shape of the upper and lower surfaces of the cutting end 11 may also be circular, trapezoidal or the like. Similarly, in the ultrasonic knife head of the present embodiment, the knife bar 2 can also be a hollow structure, and a water injection hole 14 is provided at the connection side of the knife head end 1 and the knife bar 2, and the flushing liquid is directly injected into the knife head end. 1. In order to fully inject water, the cutting end 11 may be longitudinally provided with a transparent groove or a semi-permeable groove. One end of the knife rod 2 is connected to the end portion 1 of the cutter head, and the other end of the knife rod 2 is connected to the blade body 3 . The transition between the knife rod 2 and the knife body 3 is smooth through an inclined surface or a circular arc surface. The other end of the knife body 3 is provided with a connecting thread 31, and the connecting thread 31 can be an embedded type or an external embedded type. Similarly, the hollow structure of the ultrasonic knife head can ensure that the perfusion fluid flows out from the rear surface of the knife head end, and the longitudinal transparent groove or semi-permeable groove provided on the cutting end upper surface and/or lower surface of the knife head end The groove can be fully filled with water. During the operation, the entire head of the knife head and the tissue it touches are completely cleaned and cooled by the perfusion fluid in real time, ensuring that the excised tissue is discharged immediately, and the field of vision at the incision is clear and clean, and the remaining protection should be preserved. Tissue is not damaged, thereby reducing surgical risk.

6 to 9 show the ultrasonic scalpel head according to the third embodiment of the present invention. Fig. 6 is a three-dimensional schematic view of the ultrasonic knife head of the third embodiment, Fig. 7 is a front view of the ultrasonic knife head of the third embodiment, Fig. 8 is a right view of the ultrasonic knife head of the third embodiment, Fig. 9 It is a bottom view of the ultrasonic scalpel head of the third embodiment. The ultrasonic knife head of the third embodiment of the present invention is basically the same as the ultrasonic knife head of the first embodiment, the difference is that the bending direction of the end portion 1 of the head is the same as that of the end portion 1 of the head in the first embodiment. The bending direction is opposite, and in this embodiment, a raised cutting edge 15 is longitudinally provided on the lower surface of the cutter head end 1, so that the section of the cutting end in this embodiment is T-shaped, and the ultrasonic knife cutter head is T-shaped. Shaped bending head. The cross section of the cutting edge 15 is a trapezoidal structure with a wide top and a narrow bottom. The front end of the cutting edge 15 is gathered into a wedge-shaped blade-like structure, as shown in FIG. 8 and FIG. 9 . The cutting surface 12 at the lowermost end of the cutting edge 15 can be processed into a straight plane structure, an arc surface structure or a wedge-shaped blade-like structure. In this embodiment, a clamping portion 32 is also provided on the blade body 3 . In the ultrasonic knife head according to the third embodiment of the present invention, a raised cutting edge is arranged longitudinally on the lower surface of the end of the knife head, so that the cutting end of the ultrasonic knife head is T-shaped, so that the ultrasonic knife head The cutter head is bent in a T shape, so that it can be applied to special occasions, and the cut bone cement can be cut off so that it can be easily taken out, which reduces the intensity of the doctor's operation and improves the safety of the operation.

In addition, in the ultrasonic knife head of the present embodiment, the knife bar 2 can also be a hollow structure, and a water injection hole is opened at the connection side of the knife head end 1 and the knife bar 2, and the flushing liquid is directly injected into the knife head end 1. . In order to fully inject water, the cutting end 11 may also be longitudinally provided with a transparent groove or a semi-permeable groove. As a result, water can be fully injected, and the entire head of the knife head and the tissue it touches are completely cleaned and cooled by the perfusion fluid in real time during the operation, ensuring that the excised tissue is discharged immediately, the field of view at the incision is clear and clean, and the remaining parts are protected. The tissue is not damaged, which can reduce the risk of surgery.

10 to 12 show the ultrasonic scalpel head of the fourth embodiment of the present invention. Fig. 10 is a three-dimensional schematic view of the ultrasonic scalpel head of the fourth embodiment, Fig. 11 is a front view of the ultrasonic scalpel head of the fourth embodiment, and Fig. 12 is a top view of the ultrasonic scalpel head of the fourth embodiment. The ultrasonic knife head of the fourth embodiment of the present invention is basically similar to the ultrasonic knife head of the first embodiment, the difference is that the cutting surfaces 12 on the left and right sides of the cutting end 11 are processed into a toothed structure, A clamping portion 32 is also provided. The ultrasonic knife head of the fourth embodiment of the present invention processes the cutting surfaces on the left and right sides of the cutting end into a toothed structure, so all the energy generated by the ultrasonic transducer can be gathered at the cutting end 11 at the end of the cutting head The tip part of the tooth-like structure (the most effective working part) makes the front end of the tool have the strongest energy output and achieve the strongest working effect.

To sum up, the bent design of the end of the cutter head in the present invention can help doctors cut various hard-to-reach parts, shorten the operation time, reduce the operation intensity of the doctor, and improve the safety of the operation. In the present invention, a protruding cutting edge is longitudinally arranged on the lower surface of the end of the cutter head, so that the cutting end of the ultrasonic cutter head becomes a T-shaped structure, so that the ultrasonic cutter head becomes a T-shaped bending cutter head, which can It is suitable for special occasions. It can cut off the whole ring-shaped bone cement to make it easy to be taken out, which reduces the intensity of the doctor's operation and improves the safety of the operation. In addition, the cutting surfaces in the present invention can be processed into straight planes or circular arc surfaces or wedge-shaped blade-like or tooth-like structures, which can be applied to more occasions and are easy to use.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (10)

1. a kind of ultrasonic knife cutter head, comprise cutter head end, cutter bar and cutter body, it is characterized in that, The end of the cutter head is located at one end of the cutter bar, and the end of the cutter head gradually transitions from the cylindrical shape of the cutter bar to a wedge shape or a flat plate shape, and bends along the longitudinal direction of the cutter bar to form a multi-fold The machete head, the end of the curved extension is the cutting end. 2. The ultrasonic scalpel cutter head according to claim 1, characterized in that, The front end surface and the left and right side surfaces of the cutting end are cutting surfaces. 3. The ultrasonic scalpel cutter head according to claim 2, characterized in that, A cutting edge is also arranged longitudinally on the lower surface of the end of the cutter head, and the frontmost and bottommost ends of the cutting edge are cutting surfaces. 4. The ultrasonic scalpel cutter head according to claim 3, characterized in that, The cross section of the cutting edge is a rectangular structure or an inverted triangular structure or a trapezoidal structure with a wide top and a narrow bottom, and the most front ends of the cutting edges are gathered. 5. The ultrasonic knife head according to claim 2, 3 or 4, characterized in that, The cutting surface is processed into a straight plane structure or an arc surface structure or a wedge-shaped blade-like structure or a tooth-like structure. 6. The ultrasonic knife head according to claim 1, 2, 3 or 4, characterized in that, The shape of the upper and lower surfaces of the cutting end is circular or oval or rectangular or trapezoidal. 7. The ultrasonic knife head according to claim 1, 2, 3 or 4, characterized in that, The cutter rod is a hollow structure, and a water injection hole is opened at the end of the cutter head on the connection side with the cutter rod, so as to directly inject the flushing liquid to the end of the cutter head. 8. The ultrasonic scalpel cutter head according to claim 7, characterized in that, The upper surface and/or the lower surface of the cutting end are provided with longitudinal transparent grooves or semi-permeable grooves. 9. The ultrasonic knife head according to claim 1, 2, 3, 4 or 8, characterized in that, The other end of the knife bar is connected to the knife body, and the knife bar and the knife body are connected through a smooth transition through an inclined surface or a circular arc surface, and the other end of the knife body is connected to a specific ultrasonic host through an ultrasonic transducer. 10. The ultrasonic knife head according to claim 6, characterized in that, The other end of the knife body is provided with a connecting thread, and the connecting thread is an embedded connecting thread or an externally embedded connecting thread, and a clamping portion is also arranged on the knife body.