The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 25, 2025

Filed:

Jul. 03, 2025
Applicant:

The Third Affiliated Hospital, Guangzhou Medical University (Gz Critical Pregnant Women Center), Guangdong, CN;

Inventors:

Yuanhui Li, Guangdong, CN;

Meilin Li, Guangdong, CN;

Miandong Zeng, Guangdong, CN;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 2/20 (2006.01); A61F 2/30 (2006.01); A61F 2/36 (2006.01); A61F 2/46 (2006.01); B33Y 50/00 (2015.01); B33Y 80/00 (2015.01); B33Y 10/00 (2015.01);
U.S. Cl.
CPC ...
A61F 2/4684 (2013.01); A61F 2/3094 (2013.01); A61F 2/36 (2013.01); B33Y 50/00 (2014.12); B33Y 80/00 (2014.12); A61F 2310/00353 (2013.01); B33Y 10/00 (2014.12);
Abstract

Disclosed are a metal inner core, a placeholder and a preparation method for a hip joint bone cement placeholder. By designing the metal inner core including a frame body and a supporting portion inside the hip joint bone cement placeholder, the strength of the placeholder is enhanced; due to the fact that the metal inner core is hollow, the antibiotic bone cement can fill the inner portion of the metal inner core, the content of antibiotics in the placeholder cannot be affected, and infection is effectively controlled; the hollowed-out structure endows the placeholder with lighter weight and stronger structural strength, and meanwhile, the material cost is effectively reduced; and according to the preparation method of the hip joint bone cement placeholder, the size design of the placeholder and the metal inner core is carried out, so that the joint matching degree between the placeholder and the patient is high.


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