CN215839342U - Ultrasonic cleaning knife for joint operation - Google Patents

Abstract

The utility model discloses an ultrasonic cleaning knife for joint surgery, which comprises: the cutter body is provided with a connecting end and a cleaning end, a cleaning channel is arranged in the cutter body, the cleaning channel is provided with a cleaning suction inlet located at the cleaning end and a cleaning discharge outlet located at the connecting end, the end face of the cleaning end is an arc-shaped face and is in smooth transition with the peripheral wall face of the cutter body, the inner peripheral contour and the outer peripheral contour of the cross section of the cutter body are smooth curves, the cleaning suction inlet is inclined relative to the longitudinal axis of the cutter body, the contour of the cleaning suction inlet is a smooth curve, and the inner side wall face of the cleaning suction inlet is in smooth transition with the outer side wall face of the cleaning suction inlet. The utility model is suitable for cleaning the neoplasm of the joint in the joint operation, can better adapt to the curved surface shape of the joint, has round and smooth whole body and no edges and corners, and reduces the damage to the joint.

Description

Ultrasonic cleaning knife for joint operation

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an ultrasonic cleaning knife for joint surgery.

Background

An ultrasonic surgical blade (also referred to as an ultrasonic surgical blade) is a medical instrument commonly used in surgical operations, and is used for cutting, coagulating, grinding, clamping, and the like of bones, hard tissues, and the like. In recent years, ultrasonic surgical blades, such as orthopedic ultrasonic surgical blades, have become the primary tool for surgery. The ultrasonic scalpel utilizes a high-intensity focused ultrasound technology and converts electric energy into mechanical energy through a transducer, so that tissues needing to be removed in an operation are thoroughly damaged. With the development of medical technology, surgical operations are diversified, different surgical knife heads are required to treat affected parts when the operations are performed, and various ultrasonic knives are proposed in the related art.

SUMMERY OF THE UTILITY MODEL

The present invention is based on the discovery and recognition by the inventors of the following facts and problems, and for the first time proposes an ultrasonic cleaning blade for tissue cleaning in arthroscopic surgery.

In the related art, arthroscopic surgery is generally used for the treatment of joint diseases such as ventilation and rheumatoid arthritis. The articular cartilage, ligaments, synovium and meniscus surfaces of patients often deposit neoplasms such as gout crystals or mineral crystals, which are firmly bonded to the articular cartilage and meniscus surfaces, and long-term accumulation can cause damage to the articular cartilage and induce osteoarthritis. Thus, the removal of the neoplasms of the cartilage, ligaments, synovium, meniscus surface at the joint has been a difficult point in arthroscopic surgery.

In the related art, a planning knife or a shovel special for operation is usually used to scrape off the vegetation directly. However, the present inventors have recognized through extensive practice and research that such a manner of cleaning a neoplasm has problems of long operation time, cumbersome operation of the scraping operation, high skill level required for an operator, and high susceptibility to damage to normal cartilage and tissue under the neoplasm during the scraping process. In particular, since the contour of the joint is complex, a planning knife or a surgical spatula cannot touch some parts of the joint during the cleaning process, so that the vegetation at the parts cannot be cleaned, or some parts can touch but are not well attached, so that the vegetation at the parts cannot be cleaned, and the surgical effect is affected.

The inventors of the present invention have recognized that the related art has not proposed the application of the ultrasonic scalpel to joint surgery. The inventor of the present invention found through research that the cartilage, meniscus, ligament and synovium are easily damaged by the cleaning operation carelessly due to the neoplasm at the joint being born on the surfaces of the cartilage, meniscus, ligament and synovium. Particularly, the ultrasonic scalpel in the related art is not suitable for minimally invasive joint neoplasm cleaning under an arthroscope, and due to the factors of complex structure, irregular and convex outline at the joint, the shape of an operation end of the ultrasonic scalpel in the related art and the like, the ultrasonic scalpel cannot contact or is not well attached to a cleaning part, so that the cleaning effect is influenced.

In addition, unlike general orthopedic surgery, the neoplastic cleaning of the joint surface requires delicate manipulations that otherwise easily damage cartilage, meniscus, ligaments and synovium. However, the ultrasonic blade in the related art, particularly the operating tip of the ultrasonic blade, has a sharp edge, and is very vulnerable to scratch damage to cartilage, meniscus, ligament, and synovium under the neoplasm. Therefore, the inventor of the present invention recognized that the ultrasonic blade in the related art is not suitable for cleaning of a neoplasm in a joint operation, which affects the application of the ultrasonic technique in the joint operation.

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the embodiment of the utility model provides an ultrasonic cleaning knife for joint surgery, which can clean up the excrescences of joints and is not easy to damage soft tissues such as cartilage, meniscus, ligament and synovial membrane in the joints.

The ultrasonic cleaning knife for the joint surgery comprises the following components: the cutter body is provided with a connecting end and a cleaning end, a cleaning channel is arranged in the cutter body, the cleaning channel is provided with a cleaning suction inlet located at the cleaning end and a cleaning discharge outlet located at the connecting end, the end face of the cleaning end is an arc-shaped face and is in smooth transition with the peripheral wall face of the cutter body, the inner peripheral contour and the outer peripheral contour of the cross section of the cutter body are smooth curves, the cleaning suction inlet is inclined relative to the longitudinal axis of the cutter body, the contour of the cleaning suction inlet is a smooth curve, and the inner side wall face of the cleaning suction inlet is in smooth transition with the outer side wall face of the cleaning suction inlet.

Therefore, the ultrasonic cleaning knife for the joint operation is suitable for cleaning the neoplasms at the joint in the joint operation, can better adapt to the curved surface shape of the joint, is round and smooth as a whole, has no edges and corners, and reduces damage to the joint.

In some embodiments, the cross-section of the cutter body is circular or elliptical.

In some embodiments, the cross-section of the cutter body is circular, the outer diameter D of the circular cross-section is 3 mm or more and 10 mm or less, and the included angle alpha between the cleaning suction inlet and the longitudinal axis of the cutter body is 10 degrees or more and 80 degrees or less.

In some embodiments, the inner side wall of the cleaning suction inlet and the outer side wall of the cleaning suction inlet are smoothly transited through a flange part, and the surface of the flange part is an arc-shaped surface.

In some embodiments, in an axial cross-section of the cutter body, a projection of a profile of the cleaning suction inlet is a straight line, an arc that is concave in a direction toward a central axis of the cutter body, or an arc that is convex in a direction away from the central axis of the cutter body.

In some embodiments, the cleaning intake is circular, elliptical, oblong, or in the form of a drop that increases in size from the connecting end toward the cleaning end.

In some embodiments, the cleaning suction port is formed by obliquely removing a portion of the cleaning end in a direction from the connecting end toward the cleaning end.

In some embodiments, the cleaning end is provided with a head expanding part, the cleaning suction inlet is formed on the head expanding part, the inner circumference profile and the outer circumference profile of the cross section of the head expanding part are both smooth curves, and the head expanding part and the cleaning end are in smooth transition.

In some embodiments, the cross-section of the enlarged head portion is circular or elliptical.

In some embodiments, the cutter body is tubular and the cleaning outlet is located on an end face of the connecting end, and the cross-sectional area of the enlarged head portion gradually decreases from the middle to both ends.

Drawings

FIG. 1 is a schematic view of an ultrasonic cleaning apparatus for joint surgery having an ultrasonic cleaning blade for joint surgery according to an embodiment of the present invention.

Fig. 2 is a perspective view of an ultrasonic clearing blade for joint surgery according to a first embodiment of the utility model.

FIG. 3 is a schematic top view of the ultrasonic cleaning blade of FIG. 2.

Figure 4 is a side view of the ultrasonic cleaning blade of figure 2.

FIG. 5 is a side view of an ultrasonic clearing blade for joint surgery according to a second embodiment of the utility model.

Fig. 6 is a schematic view of the ultrasonic cleaning blade of fig. 5 for cleaning a neoplasm on a joint.

FIG. 7 is a side view of an ultrasonic clearing blade according to a third embodiment of the utility model.

FIG. 8 is a schematic illustration of the ultrasonic clearing blade of FIG. 7 clearing a neoplasm on the meniscus.

FIG. 9 is a schematic view of an ultrasonic clearing blade for joint surgery according to a fourth embodiment of the utility model.

Figure 10 is a side view of the ultrasonic cleaning blade of figure 9.

FIG. 11 is a schematic side view of an ultrasonic clearing blade for joint surgery according to a fifth embodiment of the utility model.

FIG. 12 is a side view of an ultrasonic clearing blade for joint surgery according to a sixth embodiment of the utility model.

Fig. 13 is a sectional view of a portion a of fig. 2.

Fig. 14 is a sectional view of the B portion of fig. 9.

Reference numerals:

an ultrasonic cleaning blade 1000 for joint surgery; an ultrasonic cleaning device 2000 for joint surgery;

a cutter body 100; a connection end 110; a cleaning end 120; a cleaning channel 130; cleaning the suction inlet 131;

a purge drain 132; an inner sidewall surface 134; an outer sidewall 135; a flange portion 140; a head-expanding portion 150;

an ultrasonic generator 200;

an ultrasonic tool shank 300.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

An ultrasonic cleaning blade 1000 for joint surgery according to an embodiment of the present invention will be described below with reference to the accompanying drawings. As shown in fig. 1-14, an ultrasonic cleaning blade 1000 (which may also be generally referred to as an ultrasonic cleaning blade head) for joint surgery according to an embodiment of the present invention includes a blade body 100.

Cutter body 100 has a connecting end 110 and a cleaning end 120. The cutter body 100 has a cleaning channel 130 therein, and the cleaning channel 130 has a cleaning suction inlet 131 at the cleaning end 120 and a cleaning discharge outlet 132 at the connecting end 110.

The end surface of the cleaning end 120 is an arc surface and smoothly transits with the peripheral wall surface of the cutter body 100. Preferably, the end surface of the cleaning tip 120 is hemispherical or arcuate. Both the inner and outer circumferential profiles of the cross-section of the cutter body 100 are smooth curves. The cleaning suction inlet 131 is inclined relative to the longitudinal axis of the cutter body 100, the profile of the cleaning suction inlet 131 is a smooth curve, and the inner side wall surface 134 of the cleaning suction inlet 131 and the outer side wall surface 135 of the cleaning suction inlet 131 are in smooth transition.

When the ultrasonic cleaning knife 1000 for joint surgery according to the embodiment of the present invention is used, as shown in fig. 1, the connecting end 110 of the knife body 100 is connected to the ultrasonic knife handle 300, and the ultrasonic knife handle 300 is connected to the ultrasonic generator 200. The ultrasonic generator 200 drives the ultrasonic knife handle 300, so that the ultrasonic cleaning knife 1000 for joint surgery is driven to vibrate at high frequency, the ultrasonic cleaning knife 1000 for joint surgery cleans the vegetation at the joint, the cleaned vegetation enters the cleaning channel 130 from the suction opening 131, and is discharged out of the cleaning channel 130 from the cleaning discharge opening 132.

According to the ultrasonic cleaning blade 1000 for the joint surgery of the embodiment of the utility model, the end surface of the cleaning end 120 is an arc-shaped surface and is in smooth transition with the peripheral wall surface of the blade body 100, and the inner peripheral contour and the outer peripheral contour of the cross section of the blade body 100 are both smooth curves. The profile of the cleaning suction port 131 is a smooth curve. The smooth transition between the inner sidewall surface 134 of the cleaning suction port 131 and the outer sidewall surface 135 of the cleaning suction port 131 prevents the surface of the blade body 100 from having sharp or sharp points, which may damage the joint, such as the joint or meniscus, when the ultrasonic cleaning blade 1000 is used to clean a neoplasm.

Furthermore, according to the ultrasonic cleaning blade 1000 for joint surgery of the embodiment of the present invention, the cleaning suction port 131 is inclined with respect to the longitudinal axis of the blade body 100, in other words, the cleaning suction port 131 defines a surface inclined with respect to the longitudinal axis of the blade body 100, so that when cleaning a neoplasm at a joint or meniscus, the inclined cleaning suction port 131 can better fit the arc-shaped surface of the joint or meniscus, thereby better cleaning the neoplasm at the joint, improving the cleaning degree of cleaning the neoplasm, and avoiding damage to the joint or meniscus when cleaning the neoplasm.

Therefore, the ultrasonic cleaning knife 1000 for joint surgery according to the embodiment of the utility model is suitable for cleaning the neoplasm at the joint during the joint surgery, can better adapt to the curved surface shape of the joint, such as better fit with the joint and meniscus, and has no edges and corners due to the overall roundness, thereby reducing the damage to the joint.

In some embodiments, the cross-section of the cutter body 100 is circular or elliptical. The outer side surface of the cutter body 100 with the circular or elliptical cross section is an arc surface, so that damage to joints in joint surgery can be further reduced, and the cutter body 100 is simple and convenient to manufacture.

As shown in fig. 2, the cross section of the cutter body 100 is circular, and the outer diameter of the circular cross section is D, wherein D is greater than or equal to 3 mm and less than or equal to 10 mm. When the outer diameter D of the cross section of the cutter body 100 is between 3 mm and 10 mm, the cutter body 100 can be conveniently inserted into the joint to clean the excrescence of the joint.

As shown in fig. 2, the cleaning channel 130 extends along the axial direction of the cutter body 100, in other words, the cutter body 100 is hollow and tubular, and the axial length of the cutter body 100 can be set as required.

In some embodiments, the angle between the cleaning suction opening 131 and the longitudinal axis of the cutter body 100 is α, wherein α is 10 ≦ α ≦ 80, whereby the cleaning suction opening 131 may better conform to the arcuate surfaces at the joint or meniscus to better clean the vegetation. In the side view of the cutter body 100, when the cleaning suction port 131 is a plane, as shown in fig. 4, the included angle α is an included angle between the plane where the cleaning suction port 131 is located and the longitudinal axis of the cutter body 100. When the cleaning suction port 131 is an arc-shaped surface, as shown in fig. 5 and 6, the included angle α is an included angle between a plane where a connecting line of the highest point and the lowest point of the cleaning suction port 131 is located and the longitudinal axis of the cutter body 100.

In some embodiments, the projection of the profile of the cleaning suction port 131 in the axial section of the cutter body 100 may be a straight line, as shown in fig. 4. Alternatively, the projection of the profile of the cleaning suction port 131 may be an arc concave in a direction toward the central axis of the cutter body 100, as shown in fig. 5 and 6, or the projection of the profile of the cleaning suction port 131 may be an arc convex in a direction away from the central axis of the cutter body 100, as shown in fig. 7 and 8. Thus, the contour shape of the cleaning suction inlet is selected according to the surface shape of the vegetation on the joint, so that the vegetation on the surface can be cleaned better.

Specifically, as shown in fig. 4, the projection of the profile of the cleaning suction port 131 is a straight line. For example, the cleaning suction port 131 is formed on a plane. The surface of the cleaning suction port 131 is disposed obliquely with respect to the longitudinal axis of the cutter body 100.

As shown in fig. 5 and 6, in some embodiments, the projection of the profile of the cleaning suction port 131 is an arc that is concave in a direction toward the central axis of the cutter body 100. That is, the surface of the cleaning suction inlet 131 is an inward concave curved surface, so that the cleaning suction inlet 131 can be better attached to the convex surface of the joint, and the excrescence on the convex surface of the joint is convenient.

As shown in fig. 7 and 8, in some embodiments, the projection of the profile of the cleaning suction port 131 is a convex arc in a direction away from the central axis of the cutter body 100, i.e., the surface of the cleaning suction port 131 is a convex curved surface, and the convex surface of the cleaning suction port 131 can better conform to the concave surface of the meniscus, thereby better cleaning the vegetation on the concave surface of the meniscus.

In some embodiments, as shown in fig. 4-8, the cleaning intake 131 is formed by obliquely removing a portion of the cleaning end 120 in a direction from the connecting end 110 toward the cleaning end 120. Here, it is understood that the cleaning tip 120 may have a length so as to form the cleaning suction port 131 by removing a portion of the cleaning tip 120, the specific length of the cleaning tip 120 may be designed as desired, and the axial length of the cutter body 100 may also be designed as desired. Similarly, the connecting end 110 may have a certain length, and may be designed according to the requirement.

As shown in fig. 2, in some embodiments, the cleaning intake 131 is in the form of a drop that increases in size from the connecting end 110 toward the cleaning end 120.

As shown in fig. 9, in some embodiments, the purge intake 131 is elliptical. Optionally, the cleaning suction inlet 131 is circular or oblong.

As shown in fig. 9 to 12, in some embodiments, the cleaning end 120 is provided with a head-enlarged portion 150, and the cleaning suction port 131 is formed on the head-enlarged portion 150. Through setting up enlarged head portion 150, clearance suction inlet 131 is more protruding and can design the size that enlarged head portion 150 as required to clearance suction inlet 131 can process more conveniently, and the opening size of clearance suction inlet 131 can set up more in a flexible way.

In some embodiments, the cross-section of the enlarged head portion 150 is circular or elliptical. The inner and outer circumferential profiles of the cross-section of the enlarged head 150 are both smoothly curved, and the transition between the enlarged head 150 and the cleaning tip 120 is smooth, i.e., there is no sharp or sharp point on the enlarged head 150 and no sharp or sharp point on the connection between the enlarged head 150 and the cutter body 100, so as to better reduce the damage to the joint or meniscus during the operation.

In some embodiments, the cutter body 100 is tubular, the cleaning outlet 132 is located on the end surface of the connecting end 110, and the cross-sectional area of the enlarged head 150 decreases from the middle toward the ends. That is, the enlarged head portion 150 gradually shrinks from the middle toward both ends.

As shown in fig. 9 and 14, the inner sidewall 134 of the cleaning suction port 131 and the outer sidewall 135 of the cleaning suction port 131 are smoothly transited by the flange portion 140, and the surface of the flange portion 140 is an arc-shaped surface. The flange portion 140 protrudes outward, increasing the contact area of the cleansing suction port 131 with the joint or meniscus. The surface of flange portion 140 is the arcwall face, and is more smooth between clearance suction inlet 131's the lateral wall and the inside wall promptly to better laminating when the contact of clearance suction inlet 131 and joint or meniscus, in order to clear up suction inlet 131 better and clear up vegetation, reduce the damage to joint or meniscus.

According to the ultrasonic cleaning knife 1000 for the joint surgery of the embodiment of the utility model, the cleaning suction inlet 131 is obliquely arranged at the cleaning end 120 of the knife body, the ultrasonic cleaning knife 1000 for the joint surgery is round and smooth in whole, has no sharp or sharp part, and is not easy to damage joints in the joint surgery. In addition, the surface of the cleaning suction inlet 131 can be a plane, a concave arc surface and a convex arc surface, so that the cleaning suction inlet 131 can be better attached to the surfaces of the vegetations in different shapes, and the cleaned vegetations are cleaner.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. An ultrasonic clearing blade for joint surgery, comprising: the cutter body is provided with a connecting end and a cleaning end, a cleaning channel is arranged in the cutter body, the cleaning channel is provided with a cleaning suction inlet located at the cleaning end and a cleaning discharge outlet located at the connecting end, the end face of the cleaning end is an arc-shaped face and is in smooth transition with the peripheral wall face of the cutter body, the inner peripheral contour and the outer peripheral contour of the cross section of the cutter body are smooth curves, the cleaning suction inlet is inclined relative to the longitudinal axis of the cutter body, the contour of the cleaning suction inlet is a smooth curve, and the inner side wall face of the cleaning suction inlet is in smooth transition with the outer side wall face of the cleaning suction inlet.

2. The ultrasonic clearing blade of claim 1 wherein said blade body is circular or elliptical in cross section.

3. The ultrasonic cleaning knife for joint surgery according to claim 2, characterized in that the cross section of the knife body is circular, the outer diameter D of the circular cross section is 3 mm ≤ D ≤ 10 mm, and the included angle α between the cleaning suction inlet and the longitudinal axis of the knife body is 10 ° ≦ α ≤ 80 °.

4. The ultrasonic arthroscopic blade according to claim 1 wherein the inner side wall of said cleaning suction inlet and the outer side wall of said cleaning suction inlet are smoothly transited by a flange portion, the surface of said flange portion is an arc surface.

5. The ultrasonic articulate cleaning blade of any one of claims 1 to 4, wherein in an axial section of the blade body, a projection of a contour of the cleaning suction port is a straight line, an arc line that is concave in a direction toward a central axis of the blade body or an arc line that is convex in a direction away from the central axis of the blade body.

6. The ultrasonic articular surgery cleaning blade according to any one of claims 1 to 4, wherein the cleaning suction inlet is circular, elliptical or oblong.

7. The ultrasonic articular surgical clearing blade of any one of claims 1-4, wherein said clearing suction opening is formed by obliquely removing a portion of said clearing end in a direction from said connecting end toward said clearing end.

8. The ultrasonic articular surgical cleaning blade according to any one of claims 1 to 4, wherein the cleaning end is provided with a flaring portion, the cleaning suction port is formed on the flaring portion, the inner and outer peripheral profiles of the cross section of the flaring portion are both smooth curves, and the flaring portion and the cleaning end are in smooth transition.

9. The ultrasonic articular surgical clearing blade of claim 8 wherein the cross section of said enlarged head portion is circular or elliptical.

10. The ultrasonic articulate cleaning blade of claim 8 wherein said blade body is tubular and said cleaning discharge port is located on an end surface of said attachment end, said enlarged head portion having a cross-sectional area that gradually decreases from the middle toward the ends.

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