CN107397596A - A kind of dental handpiece - Google Patents

Abstract

The invention discloses a dental handpiece, which comprises a handpiece head, a handle connected to the handpiece head, a connecting pipe arranged on the handpiece head, a connecting assembly detachably connected to the connecting pipe, and a connecting assembly arranged on the connecting assembly and used Tooth extraction forceps for clamping teeth.

Description

A dental handpiece

technical field

The invention belongs to the technical field of medical instruments, in particular, the invention relates to a dental handpiece.

Background technique

The most common work of dentists is to grind and cut teeth and extract teeth. Dental handpieces are common tools for grinding and cutting teeth. The tools commonly used for tooth extraction include tooth extraction pliers, hammers, etc. Compared with the mechanized work of grinding teeth, tooth extraction is mainly performed manually by doctors. Tools, the percussion and extraction of teeth are completely done by manpower. The doctor needs several tools to use together during the tooth extraction process. This way of working often aggravates the extra pain of the patient due to the uneven operation of the doctor. Obviously, such The way of working is not friendly enough for both patient and doctor.

In order to improve the mechanical automation level of tooth extraction work, combined with the function of the dental handpiece, a new dental handpiece is designed, which can not only grind and cut teeth but also has the function of tooth extraction.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention provides a dental handpiece, the purpose of which is to increase the tooth extraction function of the dental handpiece and improve the mechanical automation level of the tooth extraction work.

In order to achieve the above object, the technical solution adopted by the present invention is: a dental handpiece, comprising a handpiece head, a handle connected to the handpiece head, a connecting pipe arranged on the handpiece head, and a connecting pipe that is detachably connected to the connecting pipe. The component and the dental extraction forceps arranged on the connecting component and used for clamping the teeth.

The connecting pipe is rotatably arranged on the mobile phone head, and the connecting pipe is connected with the turbine assembly arranged in the mobile phone head.

The connecting assembly includes a first connecting rod, a second connecting rod and a third connecting rod arranged in sequence, the second connecting rod is provided with a locking mechanism that keeps the connecting assembly relatively fixed with the connecting pipe, and the connecting pipe has a There are multiple locking grooves in which the locking mechanism is embedded.

The locking mechanism includes a locking pin which is arranged in the second connecting rod and can be embedded in the locking groove, and an elastic element which is arranged in the second connecting rod and is used to apply elastic force to the locking pin.

A plurality of locking mechanisms are arranged on the second connecting rod in the circumferential direction.

The tooth extraction forceps are connected with the third connecting rod and the tooth extraction forceps are located outside the connecting pipe.

The dental handpiece also includes a water spray pipe arranged on the head of the handpiece for spraying water into the patient's mouth.

The dental handpiece of the present invention, on the basis of retaining the functions of the traditional dental handpiece, integrates the tooth extraction work and the grinding and cutting work of the teeth, which enriches the functions of the dental handpiece; it includes a connecting pipe and a connecting assembly, and the connecting assembly is divided into The connection assembly of the bur and the connection assembly equipped with tooth extraction pliers, the connection assembly equipped with bur can realize grinding and cutting teeth, and the connection assembly installed with tooth extraction forceps can complete the tooth extraction work; the connection assembly and the connecting pipe are detachable connections, It is convenient to replace and switch the function of the dental handpiece, and it is also convenient to maintain and replace related parts; the tooth extraction forceps are driven by hydraulic pressure, which realizes mechanical automation.

Description of drawings

This manual includes the following drawings, the contents shown are:

Fig. 1 is the structural representation of dental handpiece of the present invention;

Fig. 2 is the exploded schematic view of the dental handpiece of the present invention;

Fig. 3 is the structural representation of tooth extraction forceps;

Fig. 4 is an exploded schematic view of another usage state of the dental handpiece of the present invention;

Labeled in the figure:

1. Mobile phone head; 2. Handle; 3. Connecting pipe; 4. The first connecting rod; 5. The second connecting rod; 6. The third connecting rod; 7. Tooth extraction forceps; 71. Hydraulic cylinder; 72. The first clip Block; 73, the second clamp block; 74, base plate; 8, locking pin; 9, the first oil pipe; 10, the second oil pipe; 11, locking groove; 12, bur; 13, water spray pipe.

detailed description

The specific embodiment of the present invention will be described in further detail by describing the embodiments below with reference to the accompanying drawings, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.

As shown in Figures 1 to 4, the present invention provides a dental handpiece, comprising a handpiece head 1, a handle 2 connected to the handpiece head 1, a bur 12, a connecting pipe 3 arranged on the handpiece head 1, and a connecting pipe 3 is a detachably connected connection assembly and tooth extraction forceps 7 which are arranged on the connection assembly and are used for clamping teeth.

Specifically, as shown in Fig. 1 and Fig. 2, one end of the handle 2 is fixedly connected with the mobile phone head 1, and the inside of the mobile phone head 1 is provided with a turbine assembly for generating the driving force to rotate the bur 12, and the inside of the handle 2 has a compression Air flows to the inside of the mobile phone head 1 to push the air passage for the turbine assembly to rotate. The structure of the turbine assembly is well known to those skilled in the art and will not be repeated here.

As shown in FIG. 1 and FIG. 2 , the connecting pipe 3 is rotatably arranged on the mobile phone head 1 , and the connecting rod is connected with the turbine assembly provided in the mobile phone head 1 . The connecting pipe 3 is a cylindrical structure with both ends open and a hollow interior. One end of the connecting pipe 3 is inserted into the mobile phone head 1 and is fixedly connected with the turbine assembly. When the turbine assembly rotates, the connecting pipe 3 can be driven to rotate synchronously. The connecting assembly is inserted into the connecting pipe 3 and connected with the connecting pipe 3 through a locking mechanism. After the locking mechanism realizes the fixed connection between the connecting pipe 3 and the connecting assembly, when the connecting pipe 3 rotates, it can drive the connecting assembly to rotate synchronously. As shown in Figure 4, the bur 12 can be installed on another connecting assembly, after the connecting assembly equipped with tooth extraction forceps 7 is disassembled from the connecting pipe 3, the connecting assembly equipped with the bur 12 can be connected with the connecting pipe 3 connected, and then after the turbine assembly rotates, it can drive the bur 12 to rotate synchronously for grinding and drilling.

As shown in Figure 2, the connecting assembly includes a first connecting rod 4, a second connecting rod 5 and a third connecting rod 6 connected in sequence, and the first connecting rod 4, the second connecting rod 5 and the third connecting rod 6 are all cylinders and the three are coaxially fixedly connected, the first connecting rod 4, the second connecting rod 5 and the third connecting rod 6 can be inserted into the inside of the connecting pipe 3, the diameter of the first connecting rod 4 and the third connecting rod 6 is connected to The inner diameters of the tubes 3 are approximately equal, and the diameter of the second connecting rod 5 is not larger than the inner diameter of the connecting tubes 3 . A locking mechanism for keeping the connecting assembly and the connecting pipe 3 relatively fixed is provided on the second connecting rod 5 , and the connecting pipe 3 has a locking groove 11 into which the locking mechanism is embedded, and multiple locking grooves 11 are provided. The locking mechanism includes a locking pin 8 which is arranged in the second connecting rod 5 and can be embedded in the locking groove 11, and an elastic element which is arranged in the second connecting rod 5 and is used to apply elastic force to the locking pin 8. The element is preferably a spring. The second connecting rod 5 is provided with an accommodating hole for accommodating the elastic element and the locking pin 8, and the accommodating hole is a circular hole extending radially along the second connecting rod 5, and the elastic force exerted by the elastic element on the locking pin 8 makes the lock The stop pin 8 remains in a state of being embedded in the accommodating hole and the locking groove 11 . The locking groove 11 is provided through on the side wall of the connecting pipe 3, and the locking pin 8 passes through the locking groove 11 and partially protrudes to the outside of the locking groove 11, so as to apply force to the locking pin 8 to lock The stop pin 8 is disengaged from the locking groove 11 and pushed into the accommodating hole to realize unlocking.

A plurality of locking mechanisms are provided and are equal to the number of locking grooves 11. A plurality of locking mechanisms are evenly distributed along the circumferential direction on the second connecting rod 5, and each locking mechanism is connected with a locking groove on the connecting pipe 3 respectively. 11 to improve the reliability of fixing the connecting assembly and the connecting pipe 3 after locking.

As shown in FIGS. 1 and 3 , the tooth extraction forceps 7 are connected to the third connecting rod 6 , and the tooth extraction forceps 7 are located outside the connecting pipe 3 . Tooth extraction pliers 7 are hydraulic pliers, which mainly include a base plate 74 fixedly connected with the third connecting rod 6, a hydraulic cylinder 71 fixedly arranged on the base plate 74, a first clamp block 72 arranged on the piston rod of the hydraulic cylinder 71 and a fixed The second clamping block 73 that is arranged on the bottom plate 74 and is opposite to the first clamping block 72, the first clamping block 72 and the second clamping block 73 are used to clamp the teeth that need to be extracted in the patient's oral cavity. The block 72 and the second clamping block 73 are on the same straight line parallel to the piston rod of the hydraulic caliper. The hydraulic pliers are telescopic components. When the hydraulic pliers are stretched, the gap between the first clamping block 72 and the second clamping block 73 can be adjusted, and a clamping force for clamping the teeth can be generated.

Because the work of the hydraulic cylinder 71 needs the hydraulic system to provide pressure oil, as shown in Figure 1 and Figure 2, the first oil pipe 9 and the second oil pipe 10 connected to the external hydraulic system are arranged on the mobile phone head 1, and the first oil pipe 10 of the connecting assembly The inside of the connecting rod 4, the second connecting rod 5 and the third connecting rod 6 are axially provided with two oil passages communicating with the first oil pipe 9 and the second oil pipe 10 respectively, and the two oil passages inside the connecting assembly are respectively connected with the The oil inlet and the oil return port set on the hydraulic cylinder 71 are connected, and two through holes for the first oil pipe 9 and the second oil pipe 10 to pass through are respectively provided on the side wall of the mobile phone head 1 and the central axis of the turbine assembly And the through hole is an eccentric hole. The first oil pipe 9 and the second oil pipe 10 are hard pipes. The first oil pipe 9 and the second oil pipe 10 not only serve to deliver the pressure oil to the hydraulic cylinder 71 and allow the hydraulic cylinder 71 to return the oil, but also prevent the turbine assembly from The function of rotation prevents the turbine assembly from rotating when the bur 12 is not installed. Therefore, the first oil pipe 9 and the second oil pipe 10 can be set to be threaded or plugged in with the connecting rod of the connecting assembly, so that the first oil pipe 9 and the second oil pipe 10 can be detachable, and when the turbine assembly is required to rotate, the After the first oil pipe 9 and the second oil pipe 10 are separated from the connection assembly, they are pulled out from the mobile phone head 1 .

As shown in Figures 1 and 2, the dental handpiece of the present invention also includes a water spray pipe 13 that is arranged on the handpiece head 1 and is used to spray water in the patient's oral cavity. The water spray pipe 13 is connected with an external water source, and the water spray pipe 13 Located on one side of the connecting pipe 3 and parallel to the connecting pipe 3 .

The present invention has been exemplarily described above with reference to the accompanying drawings. Apparently, the specific implementation of the present invention is not limited by the above methods. As long as various insubstantial improvements are made using the method concept and technical solution of the present invention; or without improvement, the above-mentioned concept and technical solution of the present invention are directly applied to other occasions, all within the protection scope of the present invention within.

Claims (7)

1. a kind of dental handpiece, including hand machine head and the handle that is connected with hand machine head, it is characterised in that：It is also described including being arranged at Connecting tube on hand machine head, for the connection component of detachable connection and it is arranged on connection component and for clamping with connecting tube The dental forceps of tooth.

2. dental handpiece according to claim 1, it is characterised in that：The connecting tube is to be rotatably arranged on the hand On head, connecting tube is connected with turbine assembly set in hand machine head.

3. dental handpiece according to claim 2, it is characterised in that：The connection component includes the first company set gradually Extension bar, the second connecting rod and the 3rd connecting rod, the second connecting rod, which is provided with, makes connection component keep relatively solid with the connecting tube Fixed lockable mechanism, connecting tube has the lock groove for allowing lockable mechanism to be embedded in and lock groove setting is multiple.

4. dental handpiece according to claim 3, it is characterised in that：The lockable mechanism includes being arranged at second company In extension bar and the lock pin that can be embedded in the lock groove and it is arranged in the second connecting rod and for applying elastic force to lock pin Flexible member.

5. dental handpiece according to claim 4, it is characterised in that：Lockable mechanism edge in second connecting rod It is circumferentially disposed multiple.

6. according to any described dental handpiece of claim 3 to 5, it is characterised in that：The dental forceps is connected with the described 3rd Bar connection and dental forceps are located at the outside of the connecting tube.

7. dental handpiece according to claim 6, it is characterised in that：Also include be arranged on the hand machine head and for The sparge pipe sprayed water in patient oral cavity.