Abstract

The invention relates to a method for manufacturing an ultrasonic tip for an apicoectomy, such that the tip has a shape suitable for the shape of a tooth root, comprising the steps of: forming a feedstock by mixing a metal powder including stainless steel with a binder; injecting the feedstock to form an injection-molded part having a plurality of projections integrally formed on the surface thereof; performing debinding to remove the binder from the injection-molded part; sintering the injection-molded part; and performing annealing to increase the ductility and facilitate the bending of the sintered part.

IPC Classes  ?

• C22C 33/02 - Making ferrous alloys by powder metallurgy
• A61C 5/02 - Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
• A61C 3/03 - Instruments operated by vibration
• A61C 1/07 - Dental machines for boring or cutting characterised by the drive of the dental tools with vibratory drive, e.g. ultrasonic
• B22F 3/12 - Both compacting and sintering
• B22F 3/24 - After-treatment of workpieces or articles
• B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
• A61C 5/42 - Files for root canalsHandgrips or guiding means therefor
• A61B 17/00 - Surgical instruments, devices or methods
• A61B 17/32 - Surgical cutting instruments

Abstract

The invention relates to a method for manufacturing an ultrasonic tip for an apicoectomy, such that the tip has a shape suitable for the shape of a tooth root, comprising the steps of: forming a feedstock by mixing a metal powder including stainless steel with a binder; injecting the feedstock to form an injection-molded part having a plurality of projections integrally formed on the surface thereof; performing debinding to remove the binder from the injection-molded part; sintering the injection-molded part; and performing annealing to increase the ductility and facilitate the bending of the sintered part.

IPC Classes  ?

• B22F 3/24 - After-treatment of workpieces or articles
• A61C 3/03 - Instruments operated by vibration
• A61B 17/00 - Surgical instruments, devices or methods
• A61B 17/32 - Surgical cutting instruments

Abstract

The invention relates to a method for manufacturing an ultrasonic tip for an apicoectomy, such that the tip has a shape suitable for the shape of a tooth root, comprising the steps of: forming a feedstock by mixing a metal powder including stainless steel with a binder; injecting the feedstock to form an injection-molded part having a plurality of projections integrally formed on the surface thereof; performing debinding to remove the binder from the injection-molded part; sintering the injection-molded part; and performing annealing to increase the ductility and facilitate the bending of the sintered part.

IPC Classes  ?

• A61C 5/02 - Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
• A61C 19/06 - Implements for therapeutic treatment
• A61B 17/24 - Surgical instruments, devices or methods for use in the oral cavity, larynx, bronchial passages or noseTongue scrapers
• A61B 18/00 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body

Abstract

The invention relates to a scaler tip for a dental implant, manufactured by injection molding silver, copper, silver alloy, or copper alloy powder, as well as to a method for manufacturing same. The scaler tip for a dental implant comprises: a shank portion; and a work portion which extends in one direction from the shank portion which is curved. The above-described scaler tip for a dental implant is manufactured by injection molding the powder of one or more of silver, copper, a silver alloy, and a copper alloy.

IPC Classes  ?

• A61C 17/16 - Power-driven cleaning or polishing devices

Abstract

Disclosed is a method of manufacturing a refrigerant distributor for air conditioning and a refrigerant distributor manufactured thereby. The manufacturing method includes mixing copper powder with 30-60 vol% of a binder based on the volume of the copper powder, thus preparing a mixture for injection molding, subjecting the mixture to injection molding using a mold, thus producing an injection molded body having the shape of a distributor, removing the binder from the injection molded body, and sintering the binder- free molded body in a sintering furnace at 800-115O0C in a reducible or inert atmosphere, the method being thereby favorable for mass production owing to omission of additional mechanical processing and enabling the manufacture of a distributor having a smaller size, as for adaptation for the miniaturization of an apparatus, reducing loss of material, and leading to low manufacturing costs.

IPC Classes  ?

• F24F 1/02 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing