CN214549665U

CN214549665U - Bone regeneration e-PTFE-Ti composite membrane for dental implantation

Info

Publication number: CN214549665U
Application number: CN202023153921.1U
Authority: CN
Inventors: 潘留国; 江云超; 温航
Original assignee: Shanghai Wujian Medical Instrument Co ltd
Current assignee: Shanghai Wujian Medical Instrument Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-11-02
Anticipated expiration: 2030-12-24

Abstract

The utility model discloses a tooth is planted with bone regeneration e-PTFE-Ti complex film contains: the titanium stent comprises a titanium stent and a plurality of layers of e-PTFE membranes, wherein the e-PTFE membranes are covered on two sides of the titanium stent. The utility model discloses both can prevent soft tissues such as gum from growing to the bone meal, play the barrier effect, utilize the good support nature of titanium metal support again, form effective cavity, effectively promote the bone meal osteogenesis effect.

Description

Bone regeneration e-PTFE-Ti composite membrane for dental implantation

Technical Field

The utility model relates to the technical field of dental medical equipment, in particular to a bone regeneration e-PTFE-Ti composite film for dental implantation.

Background

Dental implantation is one of the important surgical methods of the current dental restoration, and the main reason for the failure of dental implantation is that the bone mass of the jaw bone of a patient is insufficient, so that the implanted dental implant is loosened and fails. The proper horizontal and vertical direction of patient's jaw promotes patient's bone volume, increases dental implant's firmness, is the most crucial factor of preventing dental implantation failure.

The bone induction regeneration technology is clinically introduced into the field of dental implantation, and the principle of the technology is that a bone regeneration film is pasted on a part needing bone mass lifting to form a certain cavity, and artificial bone powder or autologous bone fragments are filled to induce the artificial bone powder to form bone. Whether the bone regeneration membrane can provide a stable cavity and cannot expose infection is a key factor influencing the osteogenesis effect.

Currently, the guided bone regeneration membranes commonly used in clinic are divided into two major types, i.e., absorbable membranes and non-absorbable membranes. The absorbable guide bone regeneration membrane is mostly designed into a double-layer membrane form, such as a Bio-Gide collagen membrane which is a product on the market and a tissue regeneration membrane provided by a patent CN 104474589A, wherein one layer is a compact layer and plays a role of a cell barrier and prevents soft tissue cells from growing into a bone defect area; the other layer is a loose layer which can induce new cells to grow into the loose layer and can be used as a support for cell growth to promote bone tissue regeneration. However, for the dental implant bone lifting operation, artificial bone powder is often required to be filled to induce bone tissue regeneration, the support property of an absorbable membrane is insufficient, the absorbable membrane is easy to collapse, a stable cavity cannot be formed, and the absorbable membrane cannot play a supporting role; in addition, once the absorbable membrane is degraded too early, the absorbable membrane cannot play a biological barrier role, muscle fibrous tissues grow into the artificial bone powder, so that cancellous bone is easily formed, compact cortical bone tissues cannot be formed, and the implant loosening failure is caused; absorbable membranes also have surgical risks of being unable to fix, causing displacement of the membrane, and the like.

Non-absorbable bone regeneration membranes, such as e-PTFE (expanded polytetrafluoroethylene, Expamded PTFE, e-PTFE) membranes, are also not sufficiently supportive and tend to collapse.

Disclosure of Invention

According to the embodiment of the utility model, a bone regeneration e-PTFE-Ti complex film for dental implantation is provided, contains: the titanium stent comprises a titanium stent and a plurality of layers of e-PTFE membranes, wherein the e-PTFE membranes are covered on two sides of the titanium stent.

Furthermore, two sides of the titanium bracket are respectively covered with a layer of e-PTFE membrane to form a three-layer structure of e-PTFE-Ti composite membrane.

Furthermore, the thickness range of each layer of the e-PTFE film is 0.05-0.20 mm.

Further, the titanium stent is parallel to the plane of the e-PTFE membrane and comprises: the dental implant comprises a dental implant mounting hole, a plurality of titanium ribs and a plurality of titanium membrane nail fixing holes;

the titanium ribs form a plane geometric pattern, and each titanium membrane nail fixing hole and each dental implant mounting hole are respectively arranged at the end part of one titanium rib or at the joint of the titanium ribs connected with each other;

when the dental implant is installed, the connecting line of the dental implant installation hole and any titanium membrane nail fixing hole is not in the same straight line with the dentition direction in the oral cavity.

Furthermore, the thickness range of the titanium rib is 0.05-0.20 mm, and the width range is 0.5-2.0 mm.

Furthermore, the diameter range of the dental implant mounting hole is 2.0-5.0 mm.

Furthermore, the diameter range of the titanium membrane nail fixing hole is 0.6-1.6 mm.

According to the utility model discloses tooth is planted and is used bone regeneration e-PTFE-Ti complex film, both can prevent soft tissue such as gum from growing to the bone meal, play the barrier effect, utilize the good support nature of titanium metal support again, form effective cavity, effectively promote the bone meal osteogenesis effect.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology.

Drawings

FIG. 1 is a side view of a regenerated e-PTFE-Ti composite membrane for a dental implant according to an embodiment of the present invention;

fig. 2 is a plan view of an example of regenerating an e-PTFE-Ti composite membrane from a bone for dental implantation according to an embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the following detailed description of preferred embodiments thereof, which is to be read in connection with the accompanying drawings.

First, a bone regeneration e-PTFE-Ti composite membrane for dental implantation according to an embodiment of the present invention will be described with reference to fig. 1 to 2, and the application scenario is wide.

As shown in figure 1, the utility model discloses tooth is planted with bone regeneration e-PTFE-Ti complex film has titanium support 1 and a plurality of layers of e-PTFE membrane 2, and a plurality of layers of e-PTFE membrane 2 cover in the both sides of titanium support 1, and in this embodiment, titanium support 1 is pure titanium support, therefore, both can prevent soft tissues such as gum from growing to the bone meal through e-PTFE membrane 2, play the barrier effect, utilize the good support nature of titanium support 1 again, form effective cavity, effectively promote the bone meal osteogenesis effect.

Specifically, as shown in fig. 1, two sides of a titanium stent 1 are respectively covered with a layer of e-PTFE membrane 2 to form a three-layer structure e-PTFE-Ti composite membrane, and when the titanium stent is installed, the three-layer structure e-PTFE-Ti composite membrane can be bent and trimmed clinically according to morphological requirements. In this example, each e-PTFE membrane has a thickness h of 2₁The range of (A) is 0.05-0.20 mm.

Specifically, as shown in fig. 2, the titanium stent 1 is parallel to the plane of the e-PTFE membrane 2, and has: a dental implant mounting hole 11, a plurality of titanium ribs 12 and a plurality of titanium membrane nail fixing holes 13.

Further, as shown in fig. 2, a plurality of titanium ribs 12 form a plane geometric pattern, and each titanium membrane nail fixing hole 13 and the dental implant mounting hole 11 are respectively arranged at the end of one titanium rib 12, or at the joint of the titanium ribs 12 connected with each other; when the dental implant is installed, the connecting line of the dental implant installation hole 11 and any titanium membrane nail fixing hole 13 is not in the same straight line with the dentition direction A-A in the oral cavity.

Fig. 2 shows only an exemplary geometric pattern, and the titanium ribs 12 may also form other planar geometric patterns, and may also be bent and trimmed according to the form requirement in clinical practice, which has a very strong applicability.

Further, in the present embodiment, as shown in FIGS. 1 to 2, the thickness h of the titanium rib 12₂The range is 0.05 to 0.20mm, and the range of the width d is 0.5 to 2.0 mm.

Further, the diameter range of the dental implant mounting hole 11 is 2.0-5.0 mm.

Further, the diameter range of the titanium membrane nail fixing hole 13 is 0.6-1.6 mm, and the titanium support 1 is prevented from being warped and shifted.

Above, according to the utility model discloses a tooth is planted and is used bone regeneration e-PTFE-Ti complex film according to the embodiment of the utility model is described with reference to fig. 1-2, both can prevent soft tissue such as gum from growing into the bone meal, play the barrier effect, utilize the good support nature of titanium metal support again, form effective cavity, effectively promote the bone meal osteogenesis effect.

It should be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims

1. A regenerated e-PTFE-Ti composite film for dental implantation, comprising: the titanium stent comprises a titanium stent and a plurality of layers of e-PTFE membranes, wherein the e-PTFE membranes are covered on two sides of the titanium stent, and the thickness range of each layer of e-PTFE membrane is 0.05-0.20 mm.

2. The dental implant bone regeneration e-PTFE-Ti composite membrane according to claim 1, wherein the titanium scaffold is covered with an e-PTFE membrane on each of both sides thereof to form a three-layered e-PTFE-Ti composite membrane.

3. The dental implant bone regeneration e-PTFE-Ti composite membrane according to claim 1 or 2, wherein the titanium scaffold is parallel to a plane of the e-PTFE membrane and comprises: the dental implant comprises a dental implant mounting hole, a plurality of titanium ribs and a plurality of titanium membrane nail fixing holes;

the titanium ribs form a plane geometric pattern, and each titanium membrane nail fixing hole and the dental implant mounting hole are respectively arranged at the end part of one titanium rib or at the joint of the titanium ribs connected with each other;

when the dental implant is installed, the connecting line of the dental implant installing hole and any one of the titanium membrane nail fixing holes is not in the same straight line with the dentition direction in the oral cavity.

4. The regenerated e-PTFE-Ti composite film for dental implantation according to claim 3, wherein the titanium tendon has a thickness in the range of 0.05 to 0.20mm and a width in the range of 0.5 to 2.0 mm.

5. The regenerated e-PTFE-Ti composite film for dental implantation according to claim 3, wherein the diameter of the dental implant installation hole is in the range of 2.0 to 5.0 mm.

6. The regenerated e-PTFE-Ti composite membrane for dental implantation according to claim 3, wherein the diameter of the titanium membrane nail fixing hole is in the range of 0.6 to 1.6 mm.