阅读说明：本技术 一种颌面赝复体固位用磁附着固位装置 (Magnetic attachment retention device for retaining maxillofacial prosthesis ) 是由 魏洪波 赵铱民 白石柱 于 2021-10-15 设计创作，主要内容包括：本发明公开了一种颌面赝复体固位用磁附着固位装置,通过磁铁、软磁合金和基台实现磁附着固位,清洗容易,拆卸方便,本发明将易磨损的软磁合金的一端加工成基台作为软磁合金的阴极,当磁性附着体被磨损或被腐蚀需要更换时,更换基台即可,临床操作更加便捷,解决了目前颌面缺损的赝复体杆卡固位,杆下方难以清洁,易导致种植周围炎的发生的难题。(The invention discloses a magnetic attachment retention device for retaining a maxillofacial prosthesis, which realizes magnetic attachment retention through a magnet, a soft magnetic alloy and an abutment, is easy to clean and convenient to disassemble.)

1. A magnetic attachment retention device for retaining a maxillofacial prosthesis is characterized by comprising a magnet (2), a soft magnetic alloy (3) and an abutment (4); the magnet (2) is adhered to the lower part of the prosthesis (1), the upper end of the soft magnetic alloy (3) is connected with the magnet (2), the lower end of the soft magnetic alloy is connected with the base (4), and the base (4) is arranged on the implant (5).

2. The magnetic attachment and retention device for retaining a maxillofacial prosthesis according to claim 1, wherein said soft magnetic alloy (3) has a cylindrical body with a diameter of 3-5mm at the upper end and a cylindrical body with a diameter of 1.5-2.5mm at the lower end.

3. The magnetic attachment retention device for retaining a maxillofacial prosthesis according to claim 2, wherein said soft magnetic alloy (3) has a length of 3-5mm and has an inner hexagonal hole formed on the upper end thereof opposite to the axis.

4. The magnetic attachment and retention device for retaining a maxillofacial prosthesis according to claim 2, wherein said soft magnetic alloy (3) has a lower end cylinder length of 1.5-2.5mm and a lower end cylinder provided with a thread of 1-2.5 mm.

5. The magnetic attachment and retention device for retaining a maxillofacial prosthesis according to claim 1, wherein said abutment (4) has an internal thread for engaging with and connecting to a soft magnetic alloy (3).

6. The magnetic attachment and retention device for retaining a maxillofacial prosthesis according to claim 1, wherein said abutment (4) has an overall length of 3-5 mm.

7. The magnetic attachment and retention device for retaining a maxillofacial prosthesis according to claim 1, wherein said abutment (4) is made of a titanium alloy material.

8. The magnetic attachment and retention device for retaining a maxillofacial prosthesis according to claim 1, wherein said abutment (4) is provided with a taper of 0-15 °.

Technical Field

The invention belongs to the technical field of biology and new medicines, and relates to a magnetic attachment retention device for retaining an maxillofacial prosthesis.

Background

The jaw prosthesis is an artificial prosthesis which uses artificial materials to restore the defects or deletion of oral and jaw facial organs and soft and hard tissues and rebuild the appearance and the function of a patient, and the prosthesis repair retained by using a percutaneous pure titanium implant is the most ideal treatment mode for many patients.

At present, rod clamps are mostly used for fixing and fixing the maxillofacial prosthesis, but the maxillofacial skin structure is soft and has sweat glands, and bacterial plaques are easily accumulated below and around the rod clamps, so that the inflammation is high.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a novel magnetic attachment and retention device for a maxillofacial prosthesis and a replaceable soft magnetic alloy cathode design so as to solve the problems that the existing prosthesis rod for maxillofacial defect is clamped and retained, the lower part of the rod is difficult to clean, and peri-implantitis is easy to cause.

In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:

the invention discloses a magnetic attachment retention device for retaining a maxillofacial prosthesis, which comprises a magnet, a soft magnetic alloy and an abutment; the magnet is adhered below the prosthesis, the upper end of the soft magnetic alloy is connected with the magnet, the lower end of the soft magnetic alloy is connected with the base platform, and the base platform is arranged on the implant.

Furthermore, the upper end of the soft magnetic alloy is a cylinder with the diameter of 3-5mm, and the lower end of the soft magnetic alloy is a cylinder with the diameter of 1.5-2.5 mm.

Furthermore, the length of the soft magnetic alloy is 3-5mm, and an inner hexagonal screw hole is formed in the position, opposite to the axis, of the upper end column body of the soft magnetic alloy.

Furthermore, an internal thread used for being matched and connected with the soft magnetic alloy is arranged in the base station.

Further, the total length of the base station is 3-5 mm.

Furthermore, the base platform is made of a titanium alloy material.

Further, the base is provided with a taper of 0-15 degrees.

A magnetic attachment retention device for retaining a maxillofacial prosthesis comprises a base station and a magnet, wherein the base station is connected with an implant below a replaceable soft magnetic alloy base station, and the magnet is arranged below the prosthesis. In the invention, the base station is connected with the implant through friction force generated by taper, and the soft magnetic alloy is connected with the base station through a screw; the magnet is adhered and fixed below the silica gel prosthesis, and the fixing force of the prosthesis is generated by the magnetic force of the magnet and the soft magnetic alloy abutment.

Compared with the prior art, the invention has the following beneficial effects:

compared with the traditional rod clamp retention, the magnetic attachment retention device for retaining the maxillofacial prosthesis disclosed by the invention utilizes the magnet and the soft magnetic alloy and depends on the magnetic attachment retention, and the magnetic retention eliminates the undercut below the rod clamp and is easier to clean; the picking and the putting are easy; according to the invention, one end of the easily worn soft magnetic alloy is processed into the abutment as the cathode of the soft magnetic alloy, and when the magnetic attachment is worn or corroded and needs to be replaced, the soft magnetic alloy is replaced, so that the problems that the traditional magnetic attachment retention soft magnetic alloy is easily worn and not easily replaced are avoided, and the clinical operation is more convenient.

Furthermore, the upper end of the soft magnetic alloy is a cylinder with the diameter of 3-5mm, and the lower end of the soft magnetic alloy is a cylinder with the diameter of 1.5-2.5mm, and the sectional design is favorable for the replacement and connection of the soft magnetic alloy.

Furthermore, the length of the soft magnetic alloy is 3-5mm, and the upper end cylinder of the soft magnetic alloy is provided with an inner hexagonal threaded hole, so that the soft magnetic alloy can be mounted and dismounted on the base station conveniently.

Furthermore, the length of the soft magnetic alloy lower end cylinder is 1.5-2.5mm, and the lower end cylinder is provided with 1-2.5mm long threads, so that the soft magnetic alloy lower end cylinder is favorably connected with a lower base station.

Furthermore, the base station is internally provided with an internal thread which is used for being matched with and connected with soft magnetic alloy, and the base station is connected by threads, so that the connection is firm, the disassembly is convenient, and the replacement is convenient.

Furthermore, the total length of the base station is 3-5mm, which is beneficial for the base station to penetrate out of the skin and ensures that the base station does not protrude out of the skin by more than 2 mm.

Furthermore, the abutment 4 is connected with the implant 5 by friction force due to the taper of the abutment, which is beneficial to increase the convenience of clinical operation.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a perspective view of a soft magnetic alloy according to the present invention;

FIG. 4 is a partial cross-sectional view of a soft magnetic alloy according to the present invention;

FIG. 5 is a perspective view of the abutment of the present invention;

fig. 6 is a sectional view of the abutment of the present invention.

Wherein: 1-a prosthesis; 2-a magnet; 3-soft magnetic alloy; 4-base station; 5-implant.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The invention is described in further detail below with reference to the accompanying drawings:

referring to fig. 1 and 2, the magnetic attachment retention device for retaining the maxillofacial prosthesis disclosed by the invention comprises a replaceable soft magnetic alloy 3, an abutment connected with an implant 5 below the soft magnetic alloy 3, and a magnet 2 below the prosthesis 1. In the invention, the base table 4 is connected with the implant 5 through the friction force generated by the taper of the base table, and the soft magnetic alloy 3 is connected with the base table 4 through the thread; the magnet 2 is fixedly adhered below the prosthesis 1 of the silica gel, and the retention force of the prosthesis is generated by the magnetic force of the magnet 2 and the soft magnetic alloy.

Referring to fig. 3 and 4, the upper end of the soft magnetic alloy 3 is a cylinder with the diameter of 3-5mm, the lower end of the soft magnetic alloy is a cylinder with the diameter of 1.5-2.5mm, wherein an inner hexagonal screw hole for disassembling the soft magnetic alloy is arranged on the cylinder at the upper end opposite to the axis, a thread with the length of 1-2.5mm is arranged on the cylinder at the lower end, the total length of the soft magnetic alloy 3 is 3-5mm, and the length of the cylinder at the lower end is 1.5-2.5 mm.

Referring to fig. 5 and 6, the base 4 of the invention has a total length of 3-5mm, is made of titanium alloy material, and has an inner thread arranged in the upper end thereof opposite to the axis for matching and connecting the soft magnetic alloy 3; the abutment 4 is provided with a taper of 0-15 degrees.

Furthermore, the abutment 4 is connected with the implant 5 by friction force due to the taper of the abutment, which is beneficial to increase the convenience of clinical operation.

The working process of the invention is as follows:

after the maxillofacial short implant bone is combined, the abutment 4 is fixed on the maxillofacial short implant with a specified torque, the soft magnetic alloy 3 is connected with the abutment 4 on the implant 5 through threads, the magnet 2 is fixed in the prosthesis 1 of silica gel by using cement, and the soft magnetic alloy 3 and the magnet 2 are mutually attracted to generate fixation; thus, the maxillofacial defect prosthesis is repaired by magnetic retention. After a period of time, the soft magnetic alloy 3 is worn, and the soft magnetic alloy 3 is unscrewed by using a screwdriver and is screwed in again with new soft magnetic alloy 3, so that the firm retention can be obtained again.

The invention has the advantages that: 1, the inverted concave part below the traditional rod clamping and retaining rod is eliminated, and the cleaning is easy; 2 the soft magnetic alloy is designed to be replaceable, thereby avoiding the difficult problems that the traditional magnetic attachment retention soft magnetic alloy is easy to wear and not easy to replace.

The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.