Feasibility Study of Manufacturing a Laparoscopic Stapler Joint Using Metal Injection Molding Process

Aminian, Mahdi; Hashemi, Ramin; Rasti, Amir; Zeinolabedin-Beygi, Ali

doi:10.48301/jear.2025.508055.1096

Feasibility Study of Manufacturing a Laparoscopic Stapler Joint Using Metal Injection Molding Process

Document Type : Original Article

Authors

Mahdi Aminian ¹

Ramin Hashemi ¹

Amir Rasti ²

Ali Zeinolabedin-Beygi ²

¹ School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran

² Faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran

10.48301/jear.2025.508055.1096

Abstract

The metal powder injection process is a combination of powder metallurgy and plastic injection in the manufacturing field. This process has both the economic advantages of the plastic injection process and the mechanical properties of the powder metallurgy process; In such a way that a metal piece with desirable mechanical properties can be economically produced. Hence, this process has spread in various industries, including the medical equipment industry. The Metal Injection Molding (MIM) process can be divided into four parts: feedstock, injection molding, debinding and sintering. The metal powder is first combined with the polymer and injected into the mold, and then the polymer is destroyed in the debinding process, and the part is finalized in the sintering process. In this study, the joint part of the laparoscopic stapler was manufactured with the MIM process, and the details of all four parts of the process were explained for the desired part. After making the sample, it was concluded that the method is competitive with CNC machining and the main joint and Driver of the laparoscopic stapler can be made and produced with the same method.

Keywords

Manufacturing

Feasibility

Metal injection molding

Laparoscopic Stapler

Feedstock

Subjects

Mechanical Engineering

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