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Chanchamnan S, Kim JS, Im H, Kim HJ, Heng L, Mun SD. Magnetism-enhanced biomaterial Mg guide wire by MAP process for development of catheter insertion. Med Eng Phys 2024; 124:104098. [PMID: 38418027 DOI: 10.1016/j.medengphy.2023.104098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 12/18/2023] [Accepted: 12/22/2023] [Indexed: 03/01/2024]
Abstract
The surface topography of implant tools has indicated an interfacial contact in degradation still being discovered; however, the glossy texture of a tiny magnesium wire is important for absorbable medical devices. This paper investigated the alterations of surface quality by a magnetic abrasive polishing method using a rotational magnetic field-assisted system with input parameters of revolution, abrasive media, magnetic pole, flux density, vibration, and amplitude that could noticeably enhance asperities along a sample. Furthermore, the blood flow simulation is used to analyze flow within blood vessels while maintaining the surface roughness conditions of the guide wire. The results are compared and discussed. Magnetic field simulation is employed to investigate the magnetic field strength in the polishing zone. Scanning Electron Microscopy (SEM) provides visual aids for recognizing the differences between pre-and post-workpieces of magnesium wire. The experimental results reveal that a wire diameter of 0.50 mm predominantly achieves surface morphology from the initial roughness of 0.22 μm to 0.05 μm. The results corroborate that the distribution of blood in the circulatory system was relatively stable. Hence, this study establishes a crucial benchmark for the precision polishing of ultra-thin magnesium wires, which is vital for their use as high-precision biodegradable medical devices.
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Affiliation(s)
- Sieb Chanchamnan
- Department of Energy Storage/Conversion Engineering of Graduate School, Jeonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Jeong Su Kim
- Department of Energy Storage/Conversion Engineering of Graduate School, Jeonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Hongcheol Im
- Department of Mechanical Design Engineering, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Hwi-Joong Kim
- Department of Mechanical Design Engineering, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Lida Heng
- Department of Mechanical Design Engineering, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Sang Don Mun
- Department of Energy Storage/Conversion Engineering of Graduate School, Jeonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea; Department of Mechanical Design Engineering, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea.
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Morais N, Terribile M, Mota P, Cicione A, Dionísio S, Carvalho-Dias E, Cordeiro A, Torres JN, Oliveira C, Lima E. Resistance of different guidewires to laser injury: an in-vitro experiment. MINERVA UROL NEFROL 2018; 70:624-629. [PMID: 30160385 DOI: 10.23736/s0393-2249.18.03050-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND In urology, lasers are used in a variety of endoscopic procedures such as ureteroscopy and retrograde renal surgery for stone fragmentation of urinary calculi and ablation of urothelial tumors. To perform these procedures, guidewires are used as a preliminary safe-mainstay for referencing the urinary tract. This study aims to determine the effect of two different lasers: holmium:YAG (Ho:YAG) and thulium:YAG (Tm:YAG) lasers on metal guidewires with PTFE coating (PTFE), nitinol guidewires with hydrophilic coating (Hydrophilic) and nitinol guidewires with hydrophilic listed coating (Zebra). METHODS Different combinations of frequency (5, 10 and 12 Hz) and energy per pulse (0.5, 1.5, and 2.6 J) of Ho:YAG laser were applied on the three kinds of guidewires in two experiments (50 J vs. 100 J of total energy). For the Tm:YAG laser three power levels (5, 35, and 70 W) with a total energy of 100 J were applied to the guidewires. The degree of damage (0 to 5) of the guidewire was assessed after each laser application. RESULTS A higher degree of injury of guidewires was related to higher values of total energy used for the Ho:YAG laser (P=0.036), and to higher values of power applied with the Tm:YAG (P=0.051). The most resistant guidewire to Ho:YAG laser energy was Zebra, followed by PTFE and Hydrophilic (P<0.001). With the Tm:YAG laser, PTFE guidewire appears to be the most resistant and the Hydrophilic the most fragile, although without reaching the statistical significance (P=0.223). CONCLUSIONS Both lasers revealed a harmful effect on the three tested guidewires. There was an association between the degree of injury and the amount of Ho:YAG laser energy and Tm:YAG laser power. The guidewire Zebra proved to be the safest when using Ho:YAG laser and the PTFE guidewire the most resistant to laser Tm:YAG. Further studies are necessary to confirm these results.
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Affiliation(s)
- Nuno Morais
- Department of Urology, Hospital of Braga, Braga, Portugal -
| | - Marco Terribile
- Department of Urology, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Paulo Mota
- Department of Urology, Hospital of Braga, Braga, Portugal.,Department of Life and Health Sciences, School of Medicine, University of Minho, Braga, Portugal
| | - Antonio Cicione
- Department of Urology, Magna Graecia University, Catanzaro, Italy
| | - Sílvia Dionísio
- Department of Life and Health Sciences, School of Medicine, University of Minho, Braga, Portugal
| | - Emanuel Carvalho-Dias
- Department of Urology, Hospital of Braga, Braga, Portugal.,Department of Life and Health Sciences, School of Medicine, University of Minho, Braga, Portugal
| | | | - João N Torres
- Department of Urology, Hospital of Braga, Braga, Portugal
| | | | - Estêvão Lima
- Department of Urology, Hospital of Braga, Braga, Portugal.,Department of Life and Health Sciences, School of Medicine, University of Minho, Braga, Portugal
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Pino-Ramos VH, Ramos-Ballesteros A, López-Saucedo F, López-Barriguete JE, Varca GHC, Bucio E. Radiation Grafting for the Functionalization and Development of Smart Polymeric Materials. Top Curr Chem (Cham) 2016; 374:63. [DOI: 10.1007/s41061-016-0063-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 08/03/2016] [Indexed: 10/21/2022]
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Kumar A, Singh BP, Paul S, Sankhwar S. Intravesical knotting of guide wire during insertion of Foley catheter. BMJ Case Rep 2014; 2014:bcr-2013-200678. [PMID: 24395871 DOI: 10.1136/bcr-2013-200678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Guide wires are frequently used in urology for upper and lower urinary tract procedures. Spontaneous knotting of guide wire is a rare complication and only a few cases have been reported in the literature until now. We report a case of spontaneous intravesical knotting of guide wire during per urethral catheterisation that led to retained Foley catheter. The balloon was punctured percutaneously under ultrasound guidance and the whole assembly was removed. Guide wire knot was found near the balloon. The cystoscopy showed normal urethra and bladder. The patient was recatheterised and is doing well.
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Affiliation(s)
- Arvind Kumar
- Department of Urology, King George Medical University, Lucknow, Uttar Pradesh, India
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Joshi PM, Shivde SR, Dighe TA. [Not Available]. J Minim Access Surg 2013; 4:114-6. [PMID: 19547654 PMCID: PMC2699225 DOI: 10.4103/0972-9941.45209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2008] [Accepted: 08/04/2008] [Indexed: 11/25/2022] Open
Abstract
Guide wires are frequently used in various endourologic procedures to access the upper as well as lower urinary tract. Flexible guide wires have lesser complication rate of tissue injury as compared to stiff guide wires. Flexible guide wires are however more prone to bending and kinking due to their mechanical properties. We report an unusual complication of knotting of flexible guide wires during endourologic procedure and the trick to remedy this problem. We have also discussed the structural design and mechanical properties of commonly used guide wires.
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Affiliation(s)
- Pankaj M Joshi
- Department of Urology, Deenanath Mangeshkar Hospital, Erendawane, Pune-411 004, Maharashtra, India
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