CN215349598U - Tooth extraction elevator - Google Patents
Tooth extraction elevator Download PDFInfo
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- CN215349598U CN215349598U CN202121771139.8U CN202121771139U CN215349598U CN 215349598 U CN215349598 U CN 215349598U CN 202121771139 U CN202121771139 U CN 202121771139U CN 215349598 U CN215349598 U CN 215349598U
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Abstract
The utility model discloses a dental elevator, which belongs to the field of medical appliances and comprises a handle part, a rod part and a blade part which are fixedly connected in sequence; a convex first fulcrum is arranged on the side surface of the far end of the blade part; and a convex second fulcrum is arranged on the side surface of the near end of the blade part, which deviates from the first fulcrum. According to the dental elevator, the first fulcrum and the second fulcrum of the convex side surface are respectively added at the tip end and the near end of the blade part, the blade part is inserted between two divided pieces of teeth when the dental elevator is used, the first fulcrum is hung on the pulp chamber top of one side of the teeth, and the second fulcrum is propped against the dental crown of the other side of the teeth, so that the horizontal dislocation force is converted into the vertical dislocation force, the teeth on one side can be upwards pulled through the pulp chamber top, the resistance of tooth extraction is reduced, and the risk of dental crown breakage is reduced. In addition, the stress fulcrum of the tooth is the tooth itself when the tooth is extracted, and the risk of damage to surrounding soft tissues and adjacent teeth is also reduced.
Description
Technical Field
The utility model belongs to the field of medical instruments, and particularly relates to a dental elevator.
Background
The dental elevator is a common instrument in stomatology and consists of three parts, namely a blade, a handle and a rod. The middle of most of the straight edges is provided with a slightly inclined longitudinal groove, and the edge end is an arc or a sharp edge. The tappet is a part held by an operator and is divided into a horizontal handle and a straight handle which are convenient for the operator to hold. The tappet is the part that the tappet is connected in the tappet for the stiff sword, and is mostly straight type, also has to be designed to be curved shape because of the function difference. Dental elevator is mainly classified into four categories according to shape and function: straight, curved, triangular and apical. The working principle of the dental elevator comprises a lever principle, a wedge principle and a wheel axle principle, and the three principles act together, wherein the lever principle plays a main role, and the alveolar bone is used as a fulcrum to pry.
For wisdom teeth or molar teeth with a plurality of tooth roots, the tooth extraction resistance is large, so that a dental elevator and a dental forceps cannot be directly taken out, and the teeth need to be divided into two parts by a turbine handpiece of a power system and then taken out respectively. The existing dental elevator provides horizontal dislocation force for teeth by using alveolar bones as fulcrums, and the horizontal dislocation force is easy to cause the breakage of crowns, so that the residual tooth roots are very difficult to take. In addition, the alveolar bone is used as a fulcrum, which is easy to cause damage to soft tissues of the gum or adjacent teeth, and is not in accordance with the concept of minimally invasive tooth extraction.
Therefore, a new technology is needed to solve the problems that the dental crown is easy to break and damage soft tissues or adjacent teeth during tooth extraction in the prior art.
SUMMERY OF THE UTILITY MODEL
To solve the above problems in the prior art, the present invention provides a dental elevator which can reduce the risk of breakage of a crown and reduce the risk of damage to surrounding soft tissues and adjacent teeth.
The utility model adopts the following technical scheme:
a dental elevator comprises a handle part, a rod part and a blade part which are fixedly connected in sequence;
a convex first fulcrum is arranged on the side surface of the far end of the blade part;
and a convex second fulcrum is arranged on the side surface of the near end of the blade part, which deviates from the first fulcrum.
As a further improvement of the technical solution of the present invention, the cross section of the blade portion is gradually reduced from the proximal end to the distal end.
As a further improvement of the technical scheme of the utility model, the distal end of the blade part is pointed.
As a further improvement of the technical solution of the present invention, the first fulcrum and/or the second fulcrum is tapered.
As a further improvement of the technical scheme of the utility model, the axis of the first fulcrum and the axis of the rod part form an included angle of 50-70 degrees.
As a further improvement of the technical scheme of the utility model, the axis of the second fulcrum and the axis of the rod part form an included angle of 80-100 degrees
As a further improvement of the technical scheme of the utility model, one end of the rod part close to the blade part is a bending section.
As a further improvement of the technical scheme of the utility model, the bending section is S-shaped or Z-shaped.
As a further improvement of the technical solution of the present invention, the rod part and the blade part are integrally connected.
Compared with the prior art, the utility model has the beneficial effects that:
according to the dental elevator, the first fulcrum and the second fulcrum of the convex side surface are respectively added at the tip end and the near end of the blade part, the blade part is inserted between two divided pieces of teeth when the dental elevator is used, the first fulcrum is hung on the pulp chamber top of one side of the teeth, and the second fulcrum is propped against the dental crown of the other side of the teeth, so that the horizontal dislocation force is converted into the vertical dislocation force, the teeth on one side can be upwards pulled through the pulp chamber top, the resistance of tooth extraction is reduced, and the risk of dental crown breakage is reduced. In addition, the stress fulcrum of the tooth is the tooth itself when the tooth is extracted, and the risk of damage to surrounding soft tissues and adjacent teeth is also reduced.
Drawings
The technology of the present invention will be described in further detail with reference to the accompanying drawings and detailed description below:
FIG. 1 is a perspective, schematic view of a dental elevator of the present invention;
FIG. 2 is a front view of a dental elevator of the present invention;
FIG. 3 is an enlarged schematic view at A in FIG. 2;
figure 4 is a schematic diagram of the use of the dental elevator of the present invention.
Reference numerals:
1-a handle; 2-a rod part; 21-bending section; 3-a blade part; 4-a first fulcrum; 5-a second fulcrum; 6-teeth; 61-the apical medullary chamber; 7-gingival tissue.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be clearly and completely described in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the schemes and the effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The same reference numbers will be used throughout the drawings to refer to the same or like parts.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Further, the description of the upper, lower, left, right, etc. used in the present invention is only with respect to the positional relationship of the respective components of the present invention with respect to each other in the drawings.
Referring to fig. 1 to 4, the dental elevator comprises a handle part 1, a rod part 2 and a blade part 3 which are fixedly connected in sequence. Wherein, pole portion 2 with blade portion 3 body coupling, the two is the hard metal material, and stalk portion 1 can be the plastics material of high temperature resistant autoclaving, and the one end of pole portion 2 is inserted and is fixed in stalk portion 1. When in use, a doctor holds the handle part 1 by hands to operate.
With reference to fig. 1 to 3, a convex first fulcrum 4 is provided on a side surface of a distal end of the blade portion 3; and a convex second fulcrum 5 is arranged on the side surface of the near end of the blade part 3, which is far away from the first fulcrum 4. Referring to fig. 4, by adding a first fulcrum 4 and a second fulcrum 5 protruding from the side surface to the tip and the proximal end of the blade 3, respectively, in use, the blade 3 is inserted between two separated teeth 6, the first fulcrum 4 catches the top of the pulp chamber of the tooth 6 on one side, the second fulcrum 5 abuts against the crown of the tooth 6 on the other side, and then the handle is pried to form a lever, so that the horizontal dislocation force is converted into the vertical dislocation force as shown in F1 in fig. 4, the tooth 6 on one side can be pulled up through the top of the pulp chamber, and the risk of breaking the crown is reduced while the tooth extraction resistance is reduced. Furthermore, the force bearing fulcrum of the tooth 6 during tooth extraction, F2 in fig. 4, is the tooth 6 itself, also reducing the risk of damage to surrounding soft tissue and adjacent teeth. The first fulcrum 4 and the second fulcrum 5 are also made of hard metal materials, and are cast or welded and fixed with the blade part 3.
Wherein, referring to fig. 3, the cross section of the blade 3 is gradually reduced from the proximal end to the distal end, and in one embodiment, the distal end of the blade 3 is pointed, so as to facilitate the insertion into the gap between the two teeth 6 while maintaining the strength of the blade 3. Likewise, the first fulcrum 4 and/or the second fulcrum 5 are tapered.
Wherein, referring to fig. 3, the axis of the first fulcrum 4 and the axis of the rod 2 form an included angle α of 50 ° to 70 ° to form an acute angle, which is convenient for hanging the pulp chamber top of the tooth 6, and in one embodiment, the included angle α is 60 °. The axis of the second pivot 5 and the axis of the rod 2 form an included angle beta of 80-100 degrees, which is convenient to abut against the tooth 6 on the other side so as to form a stressed pivot of the lever, and in one embodiment, the included angle beta is 90 degrees.
In order to avoid excessive traction on the mouth angle and obstacle avoidance of adjacent teeth, the tappet is designed to be in a shape with a certain angle, so that the operation is more convenient, and therefore, one end of the rod part 2 close to the blade part 3 is a bent section 21, wherein the bent section 21 is in an S shape or a Z shape.
Other details of the dental elevator described in the present invention are provided in the prior art and will not be described herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (9)
1. A dental elevator is characterized in that: comprises a handle part, a rod part and a blade part which are fixedly connected in sequence;
a convex first fulcrum is arranged on the side surface of the far end of the blade part;
and a convex second fulcrum is arranged on the side surface of the near end of the blade part, which deviates from the first fulcrum.
2. The dental elevator according to claim 1, characterized in that: the blade section tapers from the proximal end to the distal end.
3. The dental elevator according to claim 1, characterized in that: the far end of the blade part is pointed.
4. The dental elevator according to claim 1, characterized in that: the first fulcrum and/or the second fulcrum is tapered.
5. The dental elevator according to claim 4, characterized in that: the axis of the first fulcrum and the axis of the rod part form an included angle of 50-70 degrees.
6. The dental elevator according to claim 4, characterized in that: the axis of the second fulcrum and the axis of the rod part form an included angle of 80-100 degrees.
7. The dental elevator according to claim 1, characterized in that: one end of the rod part close to the blade part is a bending section.
8. The dental elevator according to claim 7, characterized in that: the bending section is S-shaped or Z-shaped.
9. The dental elevator according to claim 1, characterized in that: the rod part and the blade part are integrally connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121771139.8U CN215349598U (en) | 2021-07-30 | 2021-07-30 | Tooth extraction elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121771139.8U CN215349598U (en) | 2021-07-30 | 2021-07-30 | Tooth extraction elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215349598U true CN215349598U (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121771139.8U Active CN215349598U (en) | 2021-07-30 | 2021-07-30 | Tooth extraction elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215349598U (en) |
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2021
- 2021-07-30 CN CN202121771139.8U patent/CN215349598U/en active Active
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