CN203354609U - Cutter head of ultrasonic bone cutter - Google Patents

Abstract

The utility model discloses a cutter head of an ultrasonic bone cutter. The cutter head comprises a cutter rod and a head end, wherein the cutter rod and the head end are cylindrical, the tail part of the head end is connected with the cutter rod, teeth are arranged on the surface of the head end, and the head end is in the shape of a file. By adopting the technical scheme of the utility model, the bone cutting efficiency can be improved, the operation time is shortened, the suffering of a patient is reduced, and the labor intensity of a doctor is reduced; furthermore, the cutting amount against a bone and the cutting shape can be precisely controlled, the bone cutting loss during an operation is reduced, and the restoration of the patient is accelerated.

Description

A kind of ultrasonic bone knife head

technical field

The utility model relates to the technical field of medical instruments, in particular to an ultrasonic bone knife head.

Background technique

In orthopedic surgery, ultrasonic osteotome is often used for cutting, grinding, planing, scraping or arbitrary shaping of bone. As shown in Figure 1, the current ultrasonic osteotome has multiple teeth and a wider blade tip, and most of the blade tip is not the effective main cutting site.

The ultrasonic bone knife head has the following problems: slow cutting speed, low efficiency, poor load capacity, waste of energy; easy to break, low service life; complex shape, high processing difficulty, and high production cost.

Utility model content

The purpose of this utility model is to propose an ultrasonic bone knife head, which can improve the bone cutting efficiency, reduce the operation time, reduce the patient's pain, reduce the doctor's labor intensity, and can precisely control the cutting amount and shape of the bone, and reduce the bone loss during the operation. Minimizes the amount of bone loss and speeds up the patient's recovery time.

For this purpose, the utility model adopts the following technical solutions:

The utility model relates to an ultrasonic bone knife cutter head, which includes a cutter rod and a head end, both of which are cylinders, and the tail of the head end is connected with the cutter rod, and the surface of the head end has teeth and is file-shaped.

The top surface of the head end is provided with teeth and is file-shaped.

The peripheral surface of the cylindrical body at the head end is provided with teeth, which are file-shaped.

The included angle between the axis of the cylinder at the head end and the axis of the cylinder of the cutter bar is 90 degrees to 180 degrees.

The included angle between the toothed cutting surface at the head end and the axis of the cutter bar cylinder is 0° to 90°.

It also includes the knife body and the connecting thread. One end of the knife body is connected to the knife rod, and the other end is connected to the connecting thread. The knife body is a thick cylinder.

Adopting the technical scheme of the utility model, bone cutting and debridement have high efficiency and fast speed, reduce operation time, reduce patient pain, and reduce doctor's labor intensity; The amount of bone cutting loss during the operation can speed up the recovery time of the patient; it can be used for both bone tissue and soft tissue, and has the effect of hemostasis and coagulation in the process of bone cutting and debridement, reducing the amount of bleeding during the operation; reducing the processing difficulty and reducing the production cost.

Description of drawings

Fig. 1 is a structural schematic diagram of an ultrasonic osteotome cutter head in a prior art solution.

Fig. 2 is a schematic structural view of the ultrasonic osteotome cutter head in the specific embodiment of the present invention.

Fig. 3 is a schematic side view of the ultrasonic osteotome head in the specific embodiment of the present invention.

Fig. 4 is a schematic top view of the ultrasonic osteotome cutter head in the specific embodiment of the present invention.

Fig. 5 is a partial enlarged schematic view of the ultrasonic osteotome cutter head in the specific embodiment of the present invention.

Fig. 6 is a partially enlarged schematic view of another ultrasonic osteotomy head in the specific embodiment of the present invention.

Detailed ways

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

The main idea of the technical solution of the utility model is that the structural shape of the ultrasonic bone knife head can be used for both bone tissue and soft tissue, and the bone can be cut, ground, planed, scraped, arbitrarily Plastic surgery, as well as repairing soft tissue wounds, cleaning wounds and wounds.

Fig. 2 is a schematic structural view of the ultrasonic osteotome cutter head in the specific embodiment of the present invention. Fig. 3 is a schematic side view of the ultrasonic osteotome head in the specific embodiment of the present invention. Fig. 4 is a schematic top view of the ultrasonic osteotome cutter head in the specific embodiment of the present invention. As shown in Fig. 2, Fig. 3 and Fig. 4, the ultrasonic osteotome cutter head comprises a head end 1, a knife rod 2, a blade body 3 and a connecting thread 4, the cutter rod and the head end are cylinders, and the tail of the head end is connected to the cutter rod Connected, with teeth on the surface of the head end, file-shaped.

There are several arrangements for the file-shaped structure of the head end, one is shown in Figure 5, the top surface of the head end is provided with teeth, forming a file shape.

The other is shown in Fig. 6, the peripheral surface of the cylinder at the head end is provided with teeth, which is formed into a file shape.

Teeth can also be provided on both the top surface of the head end and the cylindrical peripheral surface of the head end, forming a file shape.

The included angle a between the axis of the cylinder at the head end and the axis of the cylinder of the cutter bar is 90° to 180°. The included angle b between the toothed cutting surface at the head end and the axis of the cutter bar cylinder is 0° to 90°. In practical application, according to different operations and different methods of use, the two angles can be combined and selected for use.

One end of the knife body is connected to the knife shank, and the other end is connected to the connecting thread. The knife body is a thick cylinder, and the middle of the knife body and the knife shank is transitioned through a circular arc, and a positive hexagonal wrench position 5 is set.

The connecting thread is used to connect with the ultrasonic transducer, connect the connecting thread at the end of the cutter head to a specific ultrasonic transducer, and tighten it with a corresponding wrench, and then connect the ultrasonic transducer to a specific ultrasonic host to start working .

The ultrasonic bone knife head is easy to operate and can be sharpened and scraped like a file. Any part of the file-shaped head can be used to remove the bone, and the operator can choose the technique and posture that suits him. There is no operational limitation and it is convenient to use.

Moreover, when the ultrasonic osteotome cutter head is in use, the file-shaped head end can be inserted between the spinal (bone) medullary membrane and the vertebral body (bone) to be removed, or placed on the edge of the bone to be removed, and the direction of force is determined by The operation is performed from the inside out, thus reducing the risk of accidental damage to the spinal (bone) marrow, reducing the risk of surgery, and reducing the difficulty of operation.

In addition, when operating on soft tissue, due to the tooth-shaped structure, the ultrasonic cavitation effect is enhanced, so the wound can be treated deeply and effectively.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, any person familiar with the technology can easily think of it within the technical scope disclosed in the utility model Changes or replacements should fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (6)

1. an ultrasonic osteotome cutter head, is characterized in that, comprises cutter bar and head end, and cutter bar and head end are cylinders, and the afterbody of head end is connected with cutter bar, and the head end surface has teeth, is file shape. 2 . The ultrasonic osteotome head according to claim 1 , wherein the top surface of the head end is provided with teeth, which are file-shaped. 3 . 3 . The ultrasonic osteotome head according to claim 1 , wherein the peripheral surface of the cylinder at the head end is provided with teeth, which are file-shaped. 4 . 4. A kind of ultrasonic osteotome cutter head according to any one of claims 1-3, characterized in that, the angle between the axis of the head end cylinder and the axis of the cutter bar cylinder is 90 degrees to 180 degree. 5. A kind of ultrasonic osteotome cutter head according to any one of claims 1-3, characterized in that, the angle between the toothed cutting surface at the head end and the axis of the cutter bar cylinder is 0 degrees to 90 degrees. 6. A kind of ultrasonic osteotome cutter head according to claim 1, is characterized in that, also comprises cutter body and connecting thread, and one end of cutter body is connected with cutter bar, and one end is connected with connecting thread, and cutter body is thick cylinder, and cutter body and cutter bar The middle transitions through a circular arc, and a positive hexagonal wrench position is set.

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