CN214632407U - Penetrating type implant with self-locking tail end - Google Patents
Penetrating type implant with self-locking tail end Download PDFInfo
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- CN214632407U CN214632407U CN202023093309.XU CN202023093309U CN214632407U CN 214632407 U CN214632407 U CN 214632407U CN 202023093309 U CN202023093309 U CN 202023093309U CN 214632407 U CN214632407 U CN 214632407U
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Abstract
The utility model provides a but penetrating type planting body of terminal auto-lock, this planting body includes: a screw part having a screw formed on an outer circumferential surface thereof; and a distal end portion located at a leading end in an insertion direction of the implant and continuing to the threaded portion; wherein an elastically deformable protruding elastic piece is provided on an outer peripheral surface of the tip portion.
Description
Technical Field
The utility model relates to a dentistry medical instrument field specifically relates to the penetrating type planting body that the end can be auto-locked in the artifical tooth field of planting.
Background
With the progress of clinical practice for decades and the improvement of aesthetic consciousness of people, dental implantation has become one of key restoration techniques for oral tooth loss, and the dental implant has the advantages of beauty, comfort and strong function, but has higher requirements on bone basic conditions. In many cases of failed dental implants, the phenomenon of implant loosening and failure is common due to insufficient combination force between the dental implant and the bone caused by insufficient height of alveolar bone. Therefore, under the condition of poor alveolar bone conditions, the anti-loosening measure for combining the dental implant and the bone becomes a key technical problem for further improving the long-term success rate of the dental implant.
During chewing, the implant is subjected to periodic alternating forces of varying magnitude, direction and kind, especially pulling forces during eating of viscous food, which forces result in a small relative displacement of the implant. However, in the case of poor alveolar bone conditions, the bone bonding force is relatively small, and the long-term exposure of the implant to such micro-motion may cause bone loss or material loss of the joint surface with the alveolar bone, which may result in implant loosening, and thus the fatigue life of the implant is greatly reduced.
The prior art shows that alveolar bone insufficiency and fretting injury are important factors causing osseointegration failure. Compared with other false teeth, the dental implant has obvious advantages and is more and more widely applied at present. However, the following disadvantages still exist:
because the lower part of the implant is deeply inserted into the alveolar bone to realize the fixed connection of the implant and the alveolar bone, when the height condition of the alveolar bone is not met, a patient cannot use the alveolar bone, or the alveolar bone has poor prognosis and is easy to fall off. In addition, the implant is easy to cause peripheral bone absorption to loosen the implanted tooth, thereby causing implant failure. Moreover, the implant is perpendicular to the alveolar bone, which causes the implant to be not matched with the axial direction of some dental crowns, so that the upper half part of the implant is forced to be short, and the fixation and the stability of the dental crowns are influenced.
SUMMERY OF THE UTILITY MODEL
The present invention has been made in view of the above circumstances, and provides a penetrating implant with a self-lockable end, which can be firmly and reliably combined with an alveolar bone and prevent loosening and falling of the implant.
According to an aspect of the present invention, there is provided a penetrating implant with a self-lockable end, comprising:
a screw part having a screw formed on an outer circumferential surface thereof; and
a distal end portion located at a leading end in an insertion direction of the implant and continuing to the threaded portion; wherein,
an elastically deformable protruding elastic piece is provided on an outer peripheral surface of the tip portion.
Further, the elastic piece extends in a plane perpendicular to the insertion direction of the implant.
Further, during insertion of the implant into an object, a portion of the elastic piece at the radially outer side of the implant is elastically deformed toward the screw portion side from the collapsed state in which the elastic piece is fitted to the outer circumferential surface of the implant; and is
When the implant penetrates the object, the elastic piece is exposed from the object to be elastically restored to an expanded state extending in the plane.
Further, the elastic pieces are formed into 2 or more pieces; and is
The elastic pieces are provided at equal intervals around the tip portion.
Further, the implant is formed in a cylindrical structure, and
an end surface of the tip portion at a side opposite to the threaded portion is formed as a flat surface.
Further, the implant is formed to be gradually reduced in diameter from the threaded portion toward the distal end portion.
Further, the implant further includes an abutment located at a position opposite to the distal end portion of the threaded portion.
The technical solution of the present invention will be described in further detail below with reference to the drawings and preferred embodiments of the present invention, and the beneficial effects of the present invention will be further clarified.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.
Fig. 1 is a side view of a self-locking distal end penetrating implant according to a preferred embodiment of the present invention in a collapsed state;
FIG. 2 is a bottom view of a self-locking end penetrating implant in a deployed state according to a preferred embodiment of the present invention;
FIG. 3 is a bottom view of a variation of a self-lockable end penetrating implant in a deployed state according to a preferred embodiment of the invention;
fig. 4 is a bottom view of another variation of a self-lockable end penetrating implant in a deployed state according to a preferred embodiment of the invention.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is obvious that the described embodiments are only a part of the preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The basic construction of a self-lockable tip penetrating implant according to an embodiment of the invention is described below with reference to fig. 1-4.
Fig. 1 is a side view of a self-locking distal end penetrating implant according to a preferred embodiment of the present invention in a collapsed state; FIG. 2 is a bottom view of a self-locking end penetrating implant in a deployed state according to a preferred embodiment of the present invention; fig. 3 is a bottom view of a self-lockable end penetrating implant in a deployed state according to a first variant of a preferred embodiment of the invention; fig. 4 is a bottom view of a self-lockable distal-end penetrating implant in a deployed state according to a second variation of a preferred embodiment of the present invention.
As shown in fig. 1, a penetrating implant (hereinafter may be simply referred to as "implant") 1 whose tip is self-lockable according to an embodiment of the present invention is formed in a substantially columnar structure as a whole.
The implant 1 includes an abutment 12, a threaded portion 10, and a tip portion 11 integrally provided in order along an axial direction (i.e., an insertion direction of the implant 1), and has a length designed to be able to penetrate an alveolar bone or enter a mucosa of a maxillary sinus (penetration of the alveolar bone is taken as an example only hereinafter) when the implant 1 is implanted, and a diameter of the implant 1 is gradually reduced from the threaded portion 10 toward the tip portion 11.
The abutment 12 is used to fix a crown and engage with a gum.
The screw portion 10 is continuous with the base and formed as a taper having a diameter gradually decreasing as it goes away from the base 12 in the axial direction, and the screw portion 10 is provided with a male thread 101 on the outer periphery thereof. The surface of the male thread 101 may be machined (e.g., plated, surface treated, heat treated, etc.) to increase the strength of the engagement of the male thread 101 with the bone and to increase its bite strength.
As shown in fig. 1, an end of the implant 1 opposite to the crown abutment 12 is a tip end portion 11, the tip end portion 11 being a leading end in an insertion direction of the implant 1 and continuing to the screw portion 10. An elastic piece 20 protruding from the outer peripheral surface of the tip portion is provided on the outer periphery of the tip portion 11.
Specifically, the root of the elastic piece 20 is connected to the outer circumferential surface of the distal end portion 11 of the implant 1, and may be integrally provided, for example. And, the elastic piece 20 is formed to extend along a plane P perpendicular to the axis of the implant 1. The shape of the elastic sheet 20 may be formed in the plane P in a blade shape like a blade of a propeller (see fig. 2).
The elastic sheet 20 is formed to have elasticity to be elastically deformable and restorable. When the implant 1 is implanted while being inserted into an alveolar bone, a radially outer portion of the elastic piece can be deformed toward the screw portion 10 side (upper side in fig. 1) of the implant 1 so that the entire elastic piece 20 approaches and abuts the outer circumferential surface of the male screw 101, and a state of the elastic body 20 in this state is referred to as a collapsed state. When the implant 1 has penetrated the alveolar bone, the elastic piece 20 protrudes out of the alveolar bone to be exposed at a side of the alveolar bone opposite to the side where the teeth are attached, and at this time, the elastic piece 20 is elastically restored to an unfolded state extending along a plane P perpendicular to the axis of the implant 1, thereby achieving self-locking of the implant 1. Under the self-locking state, the elastic sheet 20 is unfolded and restored to the horizontal state due to the elasticity of the elastic sheet, so that the fixing effect is realized to limit the relative movement of the implant 1 in the using process, the installation of the implant 1 is more stable, and the looseness is avoided.
In addition, the implant 1 disperses the occluded force to the left and right gums of the implant 1 through the thread part 10 in the using process, so that the stress is more uniform, and the service life of the implant 1 is further prolonged.
It is noted that it is preferable that the elastic piece 20 is provided at a position of the distal end portion 11 closest to the distal end so that when the implant 1 penetrates the alveolar bone, a portion of the distal end portion of the implant exposed from the alveolar bone is as short as possible with the elastic piece 20 exposed secured to reduce an influence on the surface shape of the implant object.
The shape of the elastic piece 20 may be, for example, a fan shape, a triangular shape chamfered at the top, a circular arc shape (see fig. 3), or the like, without being particularly limited.
The number of the elastic pieces 20 may be 2 or 3 or more (see fig. 4).
Preferably, the elastic piece 20 is formed to be gradually reduced in thickness as going toward the radial outside of the implant 1, so that the elastic piece is more easily deformed while securing the coupling strength with the distal end portion.
Preferably, the plurality of elastic pieces 20 are disposed at the periphery of the implant 1 at the same intervals. For example, referring to fig. 3, when 3 elastic pieces 20 are provided, it is preferable that the elastic pieces are disposed at 120 degrees apart so that the force between the elastic pieces 20 and the alveolar bone is uniformly distributed when the elastic pieces 20 are spread.
Further, the elastic piece 20 may be made of a titanium alloy, and is not limited thereto, but may be made of other metals, and further, the material of which the elastic piece 20 is made may be processed (e.g., plated film, surface treatment, heat treatment, etc.) to have greater elasticity and toughness, prevent abrasion after self-locking of the elastic piece, and improve fatigue life.
Further, the elastic sheet 20 may be made of a non-metallic material having good elasticity or the like. And is preferably formed of the same material as the tip portion 11.
The penetrating type implant with the self-locking terminal of the present invention is described above, because the elastic sheet is provided to elastically recover to expand after the implant penetrates the mandible or enters the mucosa of the maxillary sinus, the relative movement of the implant 1 in the using process is limited by the retention function, so that the installation of the implant 1 is more stable, and the generation of loosening is avoided. In addition, the implant 1 disperses the occluded force to the left and right gums of the implant 1 through the thread part 10 in the using process, so that the stress is more uniform, and the service life of the implant 1 is further prolonged.
Furthermore, the utility model discloses in, the planar structure of the conical thread structure of screw thread portion 10 and the terminal surface of tip 11 leads to the lifting surface area of implant big, does benefit to the even atress of implant bottom. And the upper end of the implant is an abutment connected with the gum, so that the crown can be replaced independently when the crown is damaged, and inconvenience and pain caused by implanting the implant again are avoided.
The above description is only an example of the present application and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (7)
1. A self-locking distal penetrating implant, comprising:
a screw part having a screw formed on an outer circumferential surface thereof; and
a distal end portion located at a leading end in an insertion direction of the implant and continuing to the threaded portion; wherein,
an elastically deformable protruding elastic piece is provided on an outer peripheral surface of the tip portion.
2. The implant of claim 1, wherein,
the elastic piece extends in a plane perpendicular to the insertion direction of the implant.
3. The implant of claim 2, wherein,
during insertion of the implant into an object, a portion of the elastic piece at a radially outer side of the implant is elastically deformed toward a screw part side, so that the elastic piece is in a collapsed state of being fitted to an outer circumferential surface of the implant; and is
When the implant penetrates the object, the elastic piece is exposed from the object to be elastically restored to an expanded state extending in the plane.
4. The implant of any one of claims 1 to 3, wherein,
the number of the elastic sheets is more than 2; and is
The elastic pieces are provided at equal intervals around the tip portion.
5. The implant of claim 4, wherein,
the implant is formed in a cylindrical structure, and
an end surface of the tip portion at a side opposite to the threaded portion is formed as a flat surface.
6. The implant of claim 5, wherein,
the implant is formed to have a diameter gradually decreasing from the threaded portion toward the distal end portion.
7. The implant of claim 6, wherein,
the implant further includes an abutment located at a position opposite to the distal end portion of the threaded portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023093309.XU CN214632407U (en) | 2020-12-21 | 2020-12-21 | Penetrating type implant with self-locking tail end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023093309.XU CN214632407U (en) | 2020-12-21 | 2020-12-21 | Penetrating type implant with self-locking tail end |
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| Publication Number | Publication Date |
|---|---|
| CN214632407U true CN214632407U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023093309.XU Active CN214632407U (en) | 2020-12-21 | 2020-12-21 | Penetrating type implant with self-locking tail end |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112641524A (en) * | 2020-12-21 | 2021-04-13 | 中国人民解放军总医院第一医学中心 | Penetrating type implant with self-locking tail end and implanting method thereof |
-
2020
- 2020-12-21 CN CN202023093309.XU patent/CN214632407U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112641524A (en) * | 2020-12-21 | 2021-04-13 | 中国人民解放军总医院第一医学中心 | Penetrating type implant with self-locking tail end and implanting method thereof |
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