CN211156076U - Bone knife for ultrasonic surgical system - Google Patents

Abstract

The utility model discloses a bone knife for ultrasonic surgery system, bone knife includes: a knife body and a knife head. The tool bit sets up the head end of blade, the tool bit is the shower head form, the tool bit has interior spoon face and outer spoon face, interior spoon face is the inclined plane, outer spoon face is the convex surface. According to the utility model discloses a bone knife grinds bone effectual, can reduce bone knife's fatigue stress greatly, prevents that bone knife from frequently breaking because of stress concentration, prolongs bone knife's life greatly.

Description

Bone knife for ultrasonic surgical system

Technical Field

The utility model belongs to the technical field of medical instrument and specifically relates to a grind bone knife for ultrasonic surgery system is related to.

Background

With the rapid development of modern medicine, the ultrasonic surgical instrument is increasingly applied to the treatment of clinical surgical operation, the ultrasonic surgical instrument applies ultrasonic energy to the surgical operation, has the characteristics of fine cutting, safety, tissue selectivity, low-temperature hemostasis and the like, greatly enriches the means of the surgical operation, improves the quality of the surgical operation, and relieves the pain of patients to a certain extent. However, the traditional ultrasonic bone knife has few types and cannot meet the requirements of operations.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a grind bone knife for ultrasonic surgery system, grind bone knife, it is effectual to grind the bone, can reduce the fatigue stress of grinding bone knife greatly, prevents to grind bone knife because of stress concentration frequent rupture, prolongs the life of grinding bone knife greatly.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a osteotome for an ultrasonic surgical system, comprising: a knife body and a knife head. The tool bit sets up the head end of blade, the tool bit is the shower head form, the tool bit has interior spoon face and outer spoon face, interior spoon face is the inclined plane, outer spoon face is the convex surface.

Further, an included angle between the inner spoon face and the axis of the knife body is 25-35 degrees.

Furthermore, a plurality of bone grinding teeth are arranged on the inner spoon surface.

Further, a plurality of the bone grinding teeth are distributed on the inner spoon surface in a plurality of rows and a plurality of columns.

Further, the molar teeth are configured as helical teeth.

Further, the blade body includes anterior segment and back end, the tool bit sets up the head end of anterior segment, just the tool bit is relative the anterior segment is buckled.

Further, the outer spoon surface is an arc smooth surface, and the curvature radius of the arc smooth surface is 5.5mm-7.0 mm.

Further, the axial length of the cutter head is 5.8mm-6.2 mm.

Further, the radial distance between the tip of the cutter head and the outer peripheral surface of the front section is 1.2mm-1.8 mm.

Further, the diameter of the front section is 2mm-3 mm.

Compared with the prior art, grind bone knife, grind bone effectual, can reduce the fatigue stress of grinding bone knife greatly, prevent to grind bone knife because of stress concentration frequent rupture, prolong the life who grinds bone knife greatly.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a front view of a osteotome for use in an ultrasonic surgical system in accordance with an embodiment of the present invention;

FIG. 2 is a right side view of a osteotome for use in an ultrasonic surgical system in accordance with an embodiment of the present invention;

fig. 3 is a top view of a tool bit according to an embodiment of the present invention.

Reference numerals:

100-bone grinding knife, 1-knife body, 11-front section, 12-rear section, 13-middle section, 14-end face, 15-step section, 16-flat section, 17-connecting section, 18-first connecting section, 2-knife head, 21-inner spoon face, 22-outer spoon face and 23-bone grinding tooth.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "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, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

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

A osteotome 100 for an ultrasonic surgical system in accordance with an embodiment of the present invention is described below with reference to fig. 1-3. As shown in fig. 1, a bone burr 100 according to an embodiment of the present invention may include: a knife body 1 and a knife head 2. Further, the cutter head 2 is arranged at the head end of the cutter body 1, and the cutter head 2 is in a shower head shape. Specifically, the cutter head 2 has an inner spoon face 21 and an outer spoon face 22, the inner spoon face 21 is an inclined face, and the outer spoon face 22 is a convex face. Therefore, the inclined plane design of the inner spoon surface 21 is beneficial to full contact of the cutter head 2 and the focus of the inclined plane, the bone grinding effect is greatly improved, and the operation time is shortened.

According to the utility model discloses bone knife 100 grinds the bone effectual, can reduce bone knife 100's fatigue stress greatly, prevents that bone knife 100 from frequently breaking because of stress concentration, prolongs bone knife 100's life greatly.

Further, as shown in fig. 1, the included angle between the inner spoon surface 21 and the axis of the knife body 1 is 25-35 degrees. For example, in one embodiment, the inner scoop face 21 may be angled at 30 ° to the axis of the blade body 1. Furthermore, a plurality of bone grinding teeth 23 are arranged on the inner spoon surface 21, and the bone grinding teeth 23 are distributed on the inner spoon surface 21 in a plurality of rows and a plurality of columns. Therefore, on one hand, the bone knife 100 is prevented from being frequently broken due to stress concentration, on the other hand, medical staff can quickly clean the focus, and the working efficiency is improved. Further, the molar teeth 23 are configured as helical teeth, which helps medical personnel to clean the lesion of the bevel. In the description of the present invention, "a plurality" means two or more.

Further, as shown in fig. 1, the blade 1 may include a front section 11 and a rear section 12, the cutting head 2 is disposed at the head end of the front section 11, and the cutting head 2 is bent with respect to the front section 11. Further, the radial dimension of the front section 11 is smaller than the radial dimension of the rear section 12. For example, in the present embodiment, the radial dimension of the forward section 11 may be 2.5mm and the radial dimension of the aft section 12 may be 5 mm. Further, the front section 11 and the rear section 12 may be connected by an intermediate section 13. Thus, the fatigue stress of the osteotome 100 can be effectively reduced and the service life of the osteotome 100 can be greatly prolonged by the stair-like distribution of the blade body 1. Further, as shown in fig. 3, the outer scoop surface 22 is an arc smooth surface, and the curvature radius of the arc smooth surface is 5.5mm to 7.0 mm. For example, in a prior embodiment, the radius of curvature of the arcuate glaze may be 6.5 mm. Further, the axial length of the cutter head 2 is 5.8mm to 6.2 mm. For example, in a prior embodiment, the axial length of the cutting head 2 may be 6 mm. Further, the radial distance between the tip of the tool bit 2 and the outer peripheral surface of the front section 11 is 1.2mm to 1.8 mm. For example, in the prior embodiment, the radial spacing between the tip of the tool tip 2 and the outer peripheral surface of the forward section 11 may be 1.5 mm. Further, the diameter of the front section 11 is 2mm to 3 mm. For example, in a prior embodiment, the front section 11 may be 2.5mm in diameter.

Further, as shown in fig. 1, in an embodiment of the present invention, the other end of the rear section 13 may be provided with a step portion 15, a flat portion 16, a connecting portion 17 and a first connecting section 18. Specifically, the step portion 15 may include a plurality of stepped shafts, and the end surface 14 of the step portion 15 connected to the rear section 13 may be provided with a certain curvature, and further, the diameter of the step portion 15 is 6.5mm to 7.5 mm. For example, in a prior embodiment, the step 15 may be 7mm in diameter. The embodiment of the utility model provides an in, step 15 has further reduced the stress concentration of blade 1, can make the fatigue stress evenly distributed of bone knife 100 open, has avoided causing the cracked phenomenon of bone knife 100 because fatigue stress's concentration, has further improved the life of bone knife 100 from this. In the description of the present invention, "a plurality" means two or more. Further, the flat 16 has an external hexagonal shape, which can be obtained by milling, and the flat 16 facilitates the medical staff to mount the knife to the ultrasonic handle (not shown in the figure), thereby facilitating the mounting of the osteotome 100. In the prior embodiment, the length of the flat portion 16 in the horizontal direction may be 5 mm. Further, the first connecting section 18 has a diameter of 3.5mm to 4.5 mm. For example, in a prior embodiment, the first connection section 18 may be 4mm in diameter. Further, the connecting portion 17 is used for connecting the osteotome 100 to the ultrasonic handle, and in one embodiment, the connecting portion 17 may be an external thread structure having a diameter of substantially 5mm, which is simple and reliable. When the osteotome 100 is to be mounted or dismounted, an operator only needs to screw the flat portion 16 at the tail end of the blade body 1 with a wrench, so as to drive the screw portion to be screwed in or out, and the osteotome 100 can be easily mounted.

Of course, the connection mode of the osteotome 100 and the ultrasonic handle is not limited to the screw connection, and may be riveting or clamping fixation.

In an embodiment of the present invention, the tool bit 2 may be made of titanium alloy, so that the tool bit 2 has high strength and light weight, thereby facilitating the reduction of the weight of the whole bone grinding knife 100.

In conclusion, according to the utility model discloses grind bone knife 100, it is effectual to grind the bone, can reduce greatly to grind bone knife 100's fatigue stress, prevents to grind bone knife 100 and frequently breaks because of stress concentration, prolongs bone knife 100's life greatly.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular 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 invention. In this specification, the schematic representations of the terms used above do not necessarily 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A osteotome for an ultrasonic surgical system, comprising:

a blade body;

the tool bit, the tool bit sets up the head end of blade, the tool bit is the shower head form, the tool bit has interior spoon face and outer spoon face, interior spoon face is the inclined plane, outer spoon face is the convex surface.

2. The osteotome defined in claim 1 wherein said inner spoon surface is angled between 25 ° and 35 ° with respect to an axis of said blade body.

3. The osteotome defined in claim 1 wherein said inner ladle surface has a plurality of osteotomy teeth disposed thereon.

4. The osteotome defined in claim 3 wherein said plurality of osteotomy teeth are disposed in a plurality of rows and columns on said inner surface.

5. The osteotome defined in claim 3 wherein said osteotome teeth are configured as beveled teeth.

6. The osteotome defined in claim 1 wherein said blade body includes a forward section and a rearward section, said blade tip being disposed at a head end of said forward section and said blade tip being angled with respect to said forward section.

7. The osteotome defined in claim 1 wherein said outer spoon surface is an arcuate smooth surface having a radius of curvature of 5.5mm to 7.0 mm.

8. The osteotome defined in claim 1 wherein said blade has an axial length of between 5.8mm and 6.2 mm.

9. The osteotome defined in claim 6 wherein the radial separation between the tip of said blade head and the outer peripheral surface of said forward section is between 1.2mm and 1.8 mm.

10. The osteotome defined in claim 6 wherein said anterior segment has a diameter of between 2mm and 3 mm.

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