Enhancing Precision in Eye Surgery: Applanation and Vacuum-Aided Automatic Cornea Needle Insertion System
This paper illustrates the improvement of needle positioning precision within corneal tissue by an automated needle insertion system utilizing a vacuum applanation pad. The system is designed to streamline the needle insertion process for deep anterior lamellar keratoplasty (DALK), where precise pos...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/10489947/ |
| _version_ | 1797213612037636096 |
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| author | Won Bin Choi Ikjong Park Jeongwoo Park Chulhong Kim Hong Kyun Kim Wan Kyun Chung |
| author_facet | Won Bin Choi Ikjong Park Jeongwoo Park Chulhong Kim Hong Kyun Kim Wan Kyun Chung |
| author_sort | Won Bin Choi |
| collection | DOAJ |
| description | This paper illustrates the improvement of needle positioning precision within corneal tissue by an automated needle insertion system utilizing a vacuum applanation pad. The system is designed to streamline the needle insertion process for deep anterior lamellar keratoplasty (DALK), where precise positioning of the needle tip is essential for successful pneumatic dissection of the diseased corneal tissue. The vacuum applanation pad of the system can fixate and flatten the corneal tissue, resulting in a fixed uniform tissue region. By penetrating the needle into the fixture region, tissue deformation - which can negatively influence needle positioning accuracy - could be minimized. Furthermore, a needle selection process regarding the gauge and length was performed to determine the optimal needle parameter with minimal end tip deflection, and a Luer lock needle fixture was designed to provide roller support that can additionally suppress deflection. Two target needle depths (400 and <inline-formula> <tex-math notation="LaTeX">$500~\mu \text{m}$ </tex-math></inline-formula>) were set to evaluate the proposed system. Ten cadaveric porcine eyes were tested for each target depth and a total of 20 data points were acquired. As a result, the system could achieve a needle end tip depth of <inline-formula> <tex-math notation="LaTeX">$373.9\pm 15.9~\mu \text{m}$ </tex-math></inline-formula> (Target: <inline-formula> <tex-math notation="LaTeX">$400~\mu \text{m}$ </tex-math></inline-formula>) and <inline-formula> <tex-math notation="LaTeX">$441.3\pm 22.2~\mu \text{m}$ </tex-math></inline-formula> (Target: <inline-formula> <tex-math notation="LaTeX">$500~\mu \text{m}$ </tex-math></inline-formula>), showing an overall standard deviation of <inline-formula> <tex-math notation="LaTeX">$21.1~\mu \text{m}$ </tex-math></inline-formula> from the target depth. Therefore, the proposed system could achieve precise positioning of the needle within the corneal tissue to the target depth without relying on feedback information, such as that provided by real-time optical coherence tomography. |
| first_indexed | 2024-04-24T11:01:02Z |
| format | Article |
| id | doaj.art-a9ec7c214e14493689da9790754a337c |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-24T11:01:02Z |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-a9ec7c214e14493689da9790754a337c2024-04-11T23:00:29ZengIEEEIEEE Access2169-35362024-01-0112500575006610.1109/ACCESS.2024.338487310489947Enhancing Precision in Eye Surgery: Applanation and Vacuum-Aided Automatic Cornea Needle Insertion SystemWon Bin Choi0https://orcid.org/0009-0001-3058-062XIkjong Park1https://orcid.org/0000-0003-4260-7305Jeongwoo Park2https://orcid.org/0000-0003-3366-2329Chulhong Kim3https://orcid.org/0000-0001-7249-1257Hong Kyun Kim4https://orcid.org/0000-0002-9283-3506Wan Kyun Chung5https://orcid.org/0000-0003-2715-5320Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang, Republic of KoreaDepartment of Mechanical Engineering, Pohang University of Science and Technology, Pohang, Republic of KoreaDepartment of Convergence IT Engineering, Pohang University of Science and Technology, Pohang, Republic of KoreaDepartment of Convergence IT Engineering, Pohang University of Science and Technology, Pohang, Republic of KoreaDepartment of Ophthalmology, School of Medicine, Kyungpook National University, Daegu, Republic of KoreaDepartment of Mechanical Engineering, Pohang University of Science and Technology, Pohang, Republic of KoreaThis paper illustrates the improvement of needle positioning precision within corneal tissue by an automated needle insertion system utilizing a vacuum applanation pad. The system is designed to streamline the needle insertion process for deep anterior lamellar keratoplasty (DALK), where precise positioning of the needle tip is essential for successful pneumatic dissection of the diseased corneal tissue. The vacuum applanation pad of the system can fixate and flatten the corneal tissue, resulting in a fixed uniform tissue region. By penetrating the needle into the fixture region, tissue deformation - which can negatively influence needle positioning accuracy - could be minimized. Furthermore, a needle selection process regarding the gauge and length was performed to determine the optimal needle parameter with minimal end tip deflection, and a Luer lock needle fixture was designed to provide roller support that can additionally suppress deflection. Two target needle depths (400 and <inline-formula> <tex-math notation="LaTeX">$500~\mu \text{m}$ </tex-math></inline-formula>) were set to evaluate the proposed system. Ten cadaveric porcine eyes were tested for each target depth and a total of 20 data points were acquired. As a result, the system could achieve a needle end tip depth of <inline-formula> <tex-math notation="LaTeX">$373.9\pm 15.9~\mu \text{m}$ </tex-math></inline-formula> (Target: <inline-formula> <tex-math notation="LaTeX">$400~\mu \text{m}$ </tex-math></inline-formula>) and <inline-formula> <tex-math notation="LaTeX">$441.3\pm 22.2~\mu \text{m}$ </tex-math></inline-formula> (Target: <inline-formula> <tex-math notation="LaTeX">$500~\mu \text{m}$ </tex-math></inline-formula>), showing an overall standard deviation of <inline-formula> <tex-math notation="LaTeX">$21.1~\mu \text{m}$ </tex-math></inline-formula> from the target depth. Therefore, the proposed system could achieve precise positioning of the needle within the corneal tissue to the target depth without relying on feedback information, such as that provided by real-time optical coherence tomography.https://ieeexplore.ieee.org/document/10489947/OphthalmologykeratoplastymicrosurgerycorneaneedleDALK |
| spellingShingle | Won Bin Choi Ikjong Park Jeongwoo Park Chulhong Kim Hong Kyun Kim Wan Kyun Chung Enhancing Precision in Eye Surgery: Applanation and Vacuum-Aided Automatic Cornea Needle Insertion System IEEE Access Ophthalmology keratoplasty microsurgery cornea needle DALK |
| title | Enhancing Precision in Eye Surgery: Applanation and Vacuum-Aided Automatic Cornea Needle Insertion System |
| title_full | Enhancing Precision in Eye Surgery: Applanation and Vacuum-Aided Automatic Cornea Needle Insertion System |
| title_fullStr | Enhancing Precision in Eye Surgery: Applanation and Vacuum-Aided Automatic Cornea Needle Insertion System |
| title_full_unstemmed | Enhancing Precision in Eye Surgery: Applanation and Vacuum-Aided Automatic Cornea Needle Insertion System |
| title_short | Enhancing Precision in Eye Surgery: Applanation and Vacuum-Aided Automatic Cornea Needle Insertion System |
| title_sort | enhancing precision in eye surgery applanation and vacuum aided automatic cornea needle insertion system |
| topic | Ophthalmology keratoplasty microsurgery cornea needle DALK |
| url | https://ieeexplore.ieee.org/document/10489947/ |
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