Low-cost electromagnet for extraction of metallic intraocular foreign body
Objective: To develop a low-cost electromagnet for extraction of metallic intraocular foreign body. Methods: This is an experimental study of an improvised electromagnetic device for extraction of intraocular metallic foreign body in a porcine eye. The device is an electromagnet made from locally...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Philippine Academy of Ophthalmology
2004-03-01
|
| Series: | Philippine Journal of Ophthalmology |
| Online Access: | https://paojournal.com/index.php/pjo/article/view/480 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850063210615406592 |
|---|---|
| author | Joselito Joel R. Castro Jr., MD Rodolfo U. Chuanico, MD, FACS |
| author_facet | Joselito Joel R. Castro Jr., MD Rodolfo U. Chuanico, MD, FACS |
| author_sort | Joselito Joel R. Castro Jr., MD |
| collection | DOAJ |
| description | Objective: To develop a low-cost electromagnet for extraction of metallic intraocular foreign body.
Methods: This is an experimental study of an improvised electromagnetic device for extraction of intraocular metallic foreign body in a porcine eye. The device is an electromagnet made from locally available electronic materials. It is equipped with two sizes of solenoid coil heads acting as the reservoir of magnetic field. The coils are fitted with two types of probes for intraocular and external magnetic extraction in a porcine eye. The device is compared with a rare earth permanent magnet to demonstrate its strength over existing magnets used in ophthalmology. The strength of the device is quantified by magnetizing a series of weighted iron plates and determining the maximum weight it held. The porcine eye was cut and the anterior hyaloid phase preserved. A 6 x 5- millimeter metallic fragment was introduced intravitreally; magnetic extraction was done with the use of the electromagnetic device through a 3mm sclerostomy.
Results: The device is 100 times less expensive than its commercial counterpart and stronger than the permanent magnet. It has a maximum lifting capacity of 8.5 pounds. The electromagnetic probe extracted the 6 x 5 mm metallic fragment from the porcine eye.
Conclusion: The low-cost electromagnet has a potential use in internal and external extraction of metallic intraocular foreign bodies in human patients. |
| format | Article |
| id | doaj-art-005859fc0f6f4936b3a142f126f6be34 |
| institution | DOAJ |
| issn | 0031-7659 |
| language | English |
| publishDate | 2004-03-01 |
| publisher | Philippine Academy of Ophthalmology |
| record_format | Article |
| series | Philippine Journal of Ophthalmology |
| spelling | doaj-art-005859fc0f6f4936b3a142f126f6be342025-08-20T02:49:43ZengPhilippine Academy of OphthalmologyPhilippine Journal of Ophthalmology0031-76592004-03-012913841480Low-cost electromagnet for extraction of metallic intraocular foreign bodyJoselito Joel R. Castro Jr., MD0Rodolfo U. Chuanico, MD, FACS1Department of Ophthalmology East Avenue Medical Center Quezon CityDepartment of Ophthalmology East Avenue Medical Center Quezon CityObjective: To develop a low-cost electromagnet for extraction of metallic intraocular foreign body. Methods: This is an experimental study of an improvised electromagnetic device for extraction of intraocular metallic foreign body in a porcine eye. The device is an electromagnet made from locally available electronic materials. It is equipped with two sizes of solenoid coil heads acting as the reservoir of magnetic field. The coils are fitted with two types of probes for intraocular and external magnetic extraction in a porcine eye. The device is compared with a rare earth permanent magnet to demonstrate its strength over existing magnets used in ophthalmology. The strength of the device is quantified by magnetizing a series of weighted iron plates and determining the maximum weight it held. The porcine eye was cut and the anterior hyaloid phase preserved. A 6 x 5- millimeter metallic fragment was introduced intravitreally; magnetic extraction was done with the use of the electromagnetic device through a 3mm sclerostomy. Results: The device is 100 times less expensive than its commercial counterpart and stronger than the permanent magnet. It has a maximum lifting capacity of 8.5 pounds. The electromagnetic probe extracted the 6 x 5 mm metallic fragment from the porcine eye. Conclusion: The low-cost electromagnet has a potential use in internal and external extraction of metallic intraocular foreign bodies in human patients.https://paojournal.com/index.php/pjo/article/view/480 |
| spellingShingle | Joselito Joel R. Castro Jr., MD Rodolfo U. Chuanico, MD, FACS Low-cost electromagnet for extraction of metallic intraocular foreign body Philippine Journal of Ophthalmology |
| title | Low-cost electromagnet for extraction of metallic intraocular foreign body |
| title_full | Low-cost electromagnet for extraction of metallic intraocular foreign body |
| title_fullStr | Low-cost electromagnet for extraction of metallic intraocular foreign body |
| title_full_unstemmed | Low-cost electromagnet for extraction of metallic intraocular foreign body |
| title_short | Low-cost electromagnet for extraction of metallic intraocular foreign body |
| title_sort | low cost electromagnet for extraction of metallic intraocular foreign body |
| url | https://paojournal.com/index.php/pjo/article/view/480 |
| work_keys_str_mv | AT joselitojoelrcastrojrmd lowcostelectromagnetforextractionofmetallicintraocularforeignbody AT rodolfouchuanicomdfacs lowcostelectromagnetforextractionofmetallicintraocularforeignbody |