CN209789954U - Bone scraping cutter for ultrasonic operation and ultrasonic operation equipment - Google Patents

Abstract

The utility model discloses a bone scraping cutter and ultrasonic operation equipment of ultrasonic operation, ultrasonic operation's bone scraping cutter includes: a blade body; the first end of tool bit with the blade links to each other, just the second end of tool bit for the first end of tool bit is to keeping away from the direction of blade axis extends, the second end of tool bit has a plurality of dogteeth. The utility model discloses a bone knife of scraping of ultrasonic operation can avoid the interference of near bone or soft tissue of wound, and the tool bit can stretch into some not enough positions that are difficult for arriving, and scrapes the bone knife and can scrape out smooth plane, and work efficiency is high.

Description

Bone scraping cutter for ultrasonic operation and ultrasonic operation equipment

Technical Field

The utility model belongs to the technical field of medical instrument, particularly, relate to a scrape bone cutter and have this ultrasonic surgery equipment of scraping bone cutter for ultrasonic surgery.

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 cutter is difficult to extend into some invisible areas, and cannot meet the requirements of the operation.

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.

According to the utility model discloses ultrasonic surgery's bone scraping knife utensil includes: a blade body; the first end of tool bit with the blade links to each other, just the second end of tool bit for the first end of tool bit is to keeping away from the direction of blade axis extends, the second end of tool bit has a plurality of dogteeth.

According to the utility model discloses ultrasonic operation scrape bone cutter can avoid the interference of bone or soft tissue near the wound, and the tool bit can stretch into some not enough positions, and scrapes bone cutter and can scrape out smooth plane, and work efficiency is high.

According to the utility model discloses a bone cutter that scrapes of ultrasonic surgery, the tool bit includes pole section and head, the pole section with the blade links to each other, the head with deviating from of pole section the one end of blade links to each other.

According to the utility model discloses ultrasonic surgery's bone knife of scraping, the pole section is the arc, just the central angle of pole section is an, satisfies: a is more than 0 degree and less than or equal to 120 degrees.

According to the utility model discloses a bone cutter is scraped in ultrasonic operation of an embodiment satisfies: a is more than or equal to 85 degrees and less than or equal to 95 degrees.

According to the utility model discloses ultrasonic surgery's bone knife of scraping, the radius of pole section is r1, the blade with the one end that the tool bit links to each other has the segmental arc that the radius is r2, satisfies: r2 is more than or equal to 12 degrees and r1 is more than or equal to 18 degrees.

according to the utility model discloses a bone knife of scraping of ultrasonic surgery, the head is flat platelike, it is a plurality of the dogtooth is followed the width direction of head arranges side by side.

According to the utility model discloses a bone cutter is scraped to ultrasonic surgery's of embodiment, the dogtooth is triangle-shaped, adjacent two the contained angle of the opening that forms between the dogtooth is b, satisfies: b is more than or equal to 28 degrees and less than or equal to 36 degrees, the vertex angle of the convex teeth is c, and the following conditions are met: c is more than or equal to 20 degrees and less than or equal to 28 degrees.

According to the utility model discloses a scrape bone cutter of ultrasonic operation, the pole section with the back of head is smooth streamlined.

According to the utility model discloses a scrape bone cutter of ultrasonic operation, the diameter of pole section is less than the diameter of blade and be less than the diameter of head.

The utility model also provides an ultrasonic operation equipment, has as in above-mentioned arbitrary ultrasonic operation scrape bone cutter.

The ultrasonic surgical equipment and the bone scraping knife have the same advantages compared with the prior art, and the description is omitted.

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 schematic structural view of a bone scraping cutter according to an embodiment of the present invention;

Fig. 2 is a schematic view of a partial structure of a bone scraping cutter at a cutter head according to an embodiment of the present invention.

reference numerals:

The bone-scraping knife 100 is provided with a knife body,

The length of the blade 10, the joint 11,

The tool bit 30, the rod segment 31, the head 33, the convex teeth 35 and the gap 37.

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.

An ultrasonic surgical osteotome tool 100 according to an embodiment of the present invention is described below with reference to fig. 1-2.

As shown in fig. 1 to 2, a bone shaver 100 for ultrasonic surgery includes a blade 10 and a cutter head 30.

As shown in fig. 1, the blade 10 may be rod-shaped, the end of the blade 10 away from the cutting head 30 may be provided with a joint 11, the joint 11 is used for connecting with an ultrasonic surgical device, and the joint 11 may be a threaded joint or a snap joint.

The first end (left end in fig. 1) of the cutting head 30 is connected to the cutter body 10, the cutting head 30 and the cutter body 10 may be integrally formed, and both the cutting head 30 and the cutter body 10 may be made of titanium alloy material (Tc 4).

Of course, the cutting head 30 and the blade body 10 may be of a split structure, for example, the cutting head 30 and the blade body 10 may be connected by a thread, so that the cutting head 30 and the blade body 10 may be made of different materials, so that the material with excellent rigidity, strength and other properties is only used for the cutting head 30, which may save the consumption of precious materials, for example, the cutting head 30 is made of titanium alloy material (Tc4), and the blade body 10 is made of steel. The cutting head 30 can be replaced after the cutting head 30 is damaged, so that the consumption cost of the bone scraping cutter 100 is reduced.

The second end of the cutting head 30 extends away from the axis of the blade body 10 relative to the first end of the cutting head 30, and the second end of the cutting head 30 has a plurality of teeth 35.

It can be understood that, if the straight bar-shaped cutter is adopted, in the operation process, the working position of the cutter head 30 can be interfered by bones and soft tissues, the cutter head 30 is difficult to extend into parts which are difficult to reach, the cutter head 30 is bent relative to the cutter body 10 and can scrape the parts which are difficult to reach, the second end of the cutter head 30 is provided with a plurality of convex teeth 35, the convex teeth-shaped cutter head 30 can scrape a flat plane, and the working efficiency of the bone scraping cutter 100 is enhanced.

According to the utility model discloses ultrasonic surgery's bone scraping knife utensil 100 can avoid the interference of bone or soft tissue near the wound, and tool bit 30 can stretch into some not enough positions, and just scrapes bone scraping knife utensil 100 and can scrape out smooth plane, and work efficiency is high.

As shown in fig. 1, the cutting head 30 includes a rod section 31 and a head section 33, the rod section 31 is connected to the blade 10, the head section 33 is connected to an end of the rod section 31 facing away from the blade 10, and the rod section 31 has an arc shape, so that the cutting head 30 has low difficulty in machining.

the central angle of the rod segment 31 is a, satisfying: a is more than 0 degree and less than or equal to 120 degrees, and further a is more than or equal to 85 degrees and less than or equal to 95 degrees, so that the scalpel body 10 is convenient to hold for bone scraping operation.

As shown in FIG. 1, the rod segment 31 has a radius r1, and the end of the blade body 10 connected to the cutting head 30 has an arc segment with a radius r2, so that: r2 r1 18 °, for example r1 14.96 °, r2 14.3 °, starts to curve from a position 33mm from the trailing end face of the blade 10. The inventor finds through a great deal of experiments that the bone scraping knife 100 in the shape is very convenient for the bone scraping operation of the doctor, and realizes effective extension of the hands of the doctor.

The back of the pole segment 31 and head 33 is smoothly streamlined. Therefore, soft tissue scratch in the operation process can be effectively avoided, unnecessary injury in the operation is reduced, and the protective performance for patients is better.

As shown in FIGS. 1 and 2, the diameter of the rod segment 31 is smaller than that of the blade 10, the diameter of the rod segment 31 is smaller than that of the head 33, for example, the diameter of the rod segment 31 may be 2mm, and the width of the head 33 is3.5mm, which facilitates access to small wounds and in operation the pole segment 31 does not cause additional trauma to the wound.

As shown in fig. 2, the head 33 is flat and plate-shaped, and the plurality of teeth 35 are arranged side by side along the width direction of the head 33, so that the plurality of teeth 35 arranged side by side can scrape pathological changes on bones more easily and can scrape flat planes.

as shown in fig. 2, the teeth 35 are triangular, and the included angle of the gap 37 formed between two adjacent teeth 35 is b, which satisfies the following conditions: b is more than or equal to 28 degrees and less than or equal to 36 degrees, and the vertex angle of the convex tooth 35 is c, so that the following conditions are met: c is more than or equal to 20 degrees and less than or equal to 28 degrees. The inventor finds through a large number of experiments that the head 33 with the shape can increase the scraping efficiency and simultaneously pass impurities such as scraped pathological changes through the notch 37 to reduce the bone scraping resistance.

As shown in fig. 2, the thickness of the head portion 33 becomes gradually thinner from the end connected to the blade body 10 to the end where the convex teeth 35 are provided. Thus, the head 33 is sharper.

In conclusion, according to the utility model discloses scrape bone knife 100, it is little to scrape bone resistance, can stretch into some not enough positions, scrapes out smooth plane.

According to the utility model also discloses an ultrasonic surgical equipment, including the bone scraping cutter 100 of above-mentioned embodiment. Other configurations of ultrasonic surgical devices, such as ultrasonic generators, transducers, etc., are well known to those skilled in the art and are not described in detail herein.

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. An ultrasonic surgical osteotome tool, comprising:

a blade body;

The first end of tool bit with the blade links to each other, just the second end of tool bit for the first end of tool bit is to keeping away from the direction of blade axis extends, the second end of tool bit has a plurality of dogteeth.

2. The ultrasonic surgical osteotome defined in claim 1 wherein said blade head includes a shaft segment and a head, said shaft segment being attached to said blade body, said head being attached to an end of said shaft segment facing away from said blade body.

3. The ultrasonic surgical osteotome defined in claim 2 wherein said segment is arcuate and has a central angle a, such that: a is more than 0 degree and less than or equal to 120 degrees.

4. The ultrasonic surgical osteotome defined in claim 3, wherein said ultrasonic surgical osteotome satisfies: a is more than or equal to 85 degrees and less than or equal to 95 degrees.

5. The ultrasonic surgical osteotome defined in claim 3 wherein said shank segment has a radius r1, and said blade body end connected to said cutting head has an arcuate segment having a radius r2, such that: r2 is more than or equal to 12 degrees and r1 is more than or equal to 18 degrees.

6. the ultrasonic-surgical bone scraping cutter of claim 2, wherein the head is in a flat plate shape, and the plurality of convex teeth are arranged side by side in a width direction of the head.

7. The ultrasonic surgical bone scraping cutter according to claim 6, wherein the teeth are triangular, and the included angle of the gap formed between two adjacent teeth is b, so that: b is more than or equal to 28 degrees and less than or equal to 36 degrees, the vertex angle of the convex teeth is c, and the following conditions are met: c is more than or equal to 20 degrees and less than or equal to 28 degrees.

8. The ultrasonic surgical osteotome defined in claim 2 wherein said shaft segment and said head dorsal surface are smoothly streamlined.

9. The ultrasonic surgical osteotome defined in claim 2 wherein said shank segment has a diameter less than a diameter of said blade body and less than a diameter of said head.

10. An ultrasonic surgical apparatus having the ultrasonic-surgical osteotome defined in any one of claims 1-9.