International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 05 | May 2022
p-ISSN: 2395-0072
www.irjet.net
3D PRINTED SURGICAL INSTRUMENTS Dr. Saravana Sundaram.S1, Deepika.K2, Mano Alagammai.SP3, Nandhini.S4, Shiroshini.M5 1Professor,
Dept. of Biomedical Engineering, Hindusthan College of Engineering and Technology, Coimbatore of Biomedical Engineering, Hindusthan College of Engineering and Technology, Coimbatore ---------------------------------------------------------------------***--------------------------------------------------------------------2,3,4,5 Dept.
Abstract - Our project approach is to have a replacement
for our regular metal or steel instruments used in present days where sterilization of those instruments takes a huge amount of our time than the surgical procedure. A surgical set consisting of hemostats, needle driver, scalpel handle, retractors, and forceps was designed using SolidWorks (Dassault Systems SolidWorks Corp., Waltham MA). These designs were then printed using a JSC-Delta-230*300 Fused Deposition Modeling (FDM) printer (RPT Hubs, Coimbatore). Practicing general surgeons tested the final printed goods for ergonomic usefulness and performance, which included simulated surgery and human inguinal hernia repairs. By altering design and build metrics, improvements were identified and addressed. It took an average of three days to complete an iterative cycle that included design, production, and testing. The FDM was used to construct each surgical set, which took an average of 6 hours to complete. It is possible to create functional surgical instruments using 3D printing. When compared to traditional production methods, there are several advantages. Functional 3D printed surgical instruments are feasible. Advantages compared to traditional manufacturing methods include no increase in cost for increased complexity, accelerated design to production times and surgeon specific modifications. Key Words: SolidWorks, 3D Printing, Fused Deposition Modeling, Surgical instruments
1. INTRODUCTION 3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file. The creation of a 3D printed object is achieved using additive processes. In an additive process an object is created by laying down successive layers of material until the object is created. Each of these layers can be seen as a thinly sliced cross-section of the object.3D printing is the opposite of subtractive manufacturing which is cutting out / hollowing out a piece of metal or plastic with for instance a milling machine.3D printing enables you to produce complex shapes using less material than traditional manufacturing methods.
1.1 3D Printed Surgical Instruments 3D printing provides a cost-effective and timely way to manufacture personalized surgical instruments tailored to the needs of each surgeon and procedure. Also, these tools can be manufactured in such a short amount of time that
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hospitals do not have to maintain large inventory of equipment and can instead order manufacturing on demand. Surgical instruments customized to the size and shape of each surgeon's hand, and additional adjustments for each application can significantly improve results and efficiency. In addition, a specially designed surgical guide for each patient can improve accuracy while reducing time in the operating room by eliminating the need to consult a medical record or assistant. Forceps, retractors, needle drivers, hemostats and scalpel handles are among the wide range of surgical tools that have been produced using 3D printing technology. These instruments are also the basic surgical set used to treat and operate inguinal hernia
2. EXISTING SYSTEM 3D printing enables us to design and fabricate surgical instruments. Authors have investigated the performance of 3D printed surgical instruments in surgical procedure such as an indirect inguinal hernia. Thus, the general surgical set for inguinal hernia repair has been build using additive manufacturing. This includes hemostat, needle driver, scalpel handle, forceps, self-retaining retractor and armynavy retractor. Despite the fact that the instruments performed sufficiently well, certain feedbacks have been observed by the surgeons such as slippage of needle holder when driving through fibrous tissue and crossing of forceps tips when grasping tissue at oblique angles.
3. PROPOSED SYSTEM The system to be developed is proposed in a way that aims at overcoming all the difficulties faced by the existing system. Metallic inserts are added into the face of the grasping surfaces of the needle driver, thus removing the slippage of needle holder that was faced during the surgical operation. Also, the profile of forceps is altered to increase off-axis instrument stiffness. This can be achieved by the use of incorporating two thermoplastic polymers that provides different properties such as stiffness, flexibility, durability, high temperature resistance, high impact strength and medical grade. Thus, Acrylonitrile Butadiene Styrene (ABS) and DuraForm ProX EX are incorporated, where ABS is an opaque thermoplastic that is relatively stiff and strong making it easy to print on and the latter is a strong, tough nylon-11 based plastic material. ISO 9001:2008 Certified Journal
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