1
|
Opfermann JD, Barbic M, Khrenov M, Guo S, Sarfaraz NR, Kang JU, Krieger A. A Novel Wax Based Piezo Actuator for Autonomous Deep Anterior Lamellar Keratoplasty (Piezo-DALK). PROCEEDINGS OF THE ... IEEE/RSJ INTERNATIONAL CONFERENCE ON INTELLIGENT ROBOTS AND SYSTEMS. IEEE/RSJ INTERNATIONAL CONFERENCE ON INTELLIGENT ROBOTS AND SYSTEMS 2021; 2021:757-764. [PMID: 38170110 PMCID: PMC10759147 DOI: 10.1109/iros51168.2021.9636153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
This paper reports the design and evaluation of a novel piezo based actuator for needle drive in autonomous Deep Anterior Lamellar Keratoplasty (piezo-DALK). The actuator weighs less than 8g and is 20mm × 20mm × 10.5mm in size, making it ideal for eye-mounted applications. Mean open loop positional deviation was 1.17 ± 3.15um, and system repeatability and accuracy were 17.16um and 18.33um, respectively. Stall force was found to vary linearly with the cooling cycle and the actuator achieved a maximum drive force of 3.98N. When simulating the DALK procedure in synthetic corneal tissue, the piezo-DALK achieved a penetration depth of 643.56um which was equivalent to 92.1% of the total corneal thickness. This correlated closely with our desired depth of 90% ± 5% and took 2.5 hours to achieve. This work represents the first eye mountable actuator capable of "Big Bubble" needle drive for autonomous DALK procedures.
Collapse
Affiliation(s)
- J D Opfermann
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21211 USA
| | - M Barbic
- Tech4Health Institute, NYU School of Medicine, New York, NY 10016 USA
| | - M Khrenov
- Department of Mechanical Engineering, University of Maryland, College Park, MD 20742 USA
| | - S Guo
- Department of Electrical Engineering, Johns Hopkins University, Baltimore, MD 21211 USA
| | - N R Sarfaraz
- Department of Mechanical Engineering, University of Maryland, College Park, MD 20742 USA
| | - J U Kang
- Department of Electrical Engineering, Johns Hopkins University, Baltimore, MD 21211 USA
| | - A Krieger
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21211 USA
| |
Collapse
|
2
|
Hatefi S, Alizargar J, Le Roux F, Hatefi K, Etemadi Sh M, Davids H, Hsieh NC, Smith F, Abou-El-Hossein K. Review of physical stimulation techniques for assisting distraction osteogenesis in maxillofacial reconstruction applications. Med Eng Phys 2021; 91:28-38. [PMID: 34074463 DOI: 10.1016/j.medengphy.2021.03.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 02/17/2021] [Accepted: 03/24/2021] [Indexed: 01/24/2023]
Abstract
Distraction Osteogenesis (DO) is an emerging limb lengthening method for the reconstruction of the hard tissue and the surrounding soft tissue, in different human body zones. DO plays an important role in treating bone defects in Maxillofacial Reconstruction Applications (MRA) due to reduced side effects and better formed bone tissue compared to conventional reconstruction methods i.e. autologous bone graft, and alloplast implantation. Recently, varying techniques have been evaluated to enhance the characteristics of the newly formed tissues and process parameters. Promising results have been shown in assisting DO treatments while benefiting bone formation mechanisms by using physical stimulation techniques, including photonic, electromagnetic, electrical, and mechanical stimulation technique. Using assisted DO techniques has provided superior results in the outcome of the DO procedure compared to a standard DO procedure. However, DO methods, as well as assisting technologies applied during the DO procedure, are still emerging. Studies and experiments on developed solutions related to this field have been limited to animal and clinical trials. In this review paper, recent advances in physical stimulation techniques and their effects on the outcome of the DO treatment in MRA are surveyed. By studying the effects of using assisting techniques during the DO treatment, enabling an ideal assisted DO technique in MRA can be possible. Although mentioned techniques have shown constructive effects during the DO procedure, there is still a need for more research and investigation to be done to fully understand the effects of assisting techniques and advanced technologies for use in an ultimate DO procedure in MRA.
Collapse
Affiliation(s)
- Shahrokh Hatefi
- Precision Engineering Laboratory, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Javad Alizargar
- Research Center for Healthcare Industry Innovation, National Taipei University of Nursing and Health Sciences, Taipei 112, Taiwan.
| | - Francis Le Roux
- Department of Mechatronics Engineering, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Katayoun Hatefi
- Department of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan, Iran.
| | - Milad Etemadi Sh
- Department of Oral and Maxillofacial Surgery, Dental Implants Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Hajierah Davids
- Department of Physiology, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Nan-Chen Hsieh
- Department of Information Management, National Taipei University of Nursing and Health Sciences, Taipei 112, Taiwan.
| | - Farouk Smith
- Department of Mechatronics Engineering, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Khaled Abou-El-Hossein
- Precision Engineering Laboratory, Nelson Mandela University, Port Elizabeth, South Africa.
| |
Collapse
|
3
|
Effect of Cyclic Compressive Forces on New Bone Formation during the Distraction Period in Mandibular Distraction Osteogenesis Using a Microactuator-Generated Distractor. Plast Reconstr Surg 2020; 146:783-791. [DOI: 10.1097/prs.0000000000007152] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
4
|
Hatefi S, Hatefi K, Le Roux F, Alizargar J, Behdadipour Z, Yihun Y, Abou-El-Hossein K. Review of automatic continuous distraction osteogenesis devices for mandibular reconstruction applications. Biomed Eng Online 2020; 19:17. [PMID: 32238159 PMCID: PMC7110677 DOI: 10.1186/s12938-020-00761-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 03/24/2020] [Indexed: 02/01/2023] Open
Abstract
Distraction osteogenesis (DO) is an emerging method for bone tissue reconstruction. In oral and maxillofacial reconstruction applications, DO is playing an important role as a technique without the need of bone graft. In addition, in a DO treatment procedure, a superior outcome could be achieved compared to conventional reconstruction techniques. Recently, a few automatic continuous distraction osteogenesis (ACDO) devices have been designed and developed to be used in human reconstruction applications. Experiments and animal studies have validated the functionality of the developed ACDO devices. It has shown that by using such ACDO devices in a DO procedure, compared to conventional manual DO methods, superior outcomes could be obtained. However, the application of such ACDO devices is still limited. More research and investigation need to be undertaken to study all requirements of ACDO devices to be used in successful human mandibular DO treatment. It is important to determine all requirements and standards that need to be considered and applied in the design and development of ACDO devices. The purpose of this review paper is to highlight the designed and developed ACDO procedures thus far in terms of their working principles, working parameters, and technical aspects for providing a better perspective of the development progress of ACDO devices for oral and maxillofacial reconstruction applications. In this paper, design principles, device specifications, and working parameters of ACDO devices are compared and discussed. Subsequently, current limitations and gaps have been addressed, and future works for enabling an ultimate automatic DO procedure have been suggested.
Collapse
Affiliation(s)
- Shahrokh Hatefi
- Precision Engineering Laboratory, Nelson Mandela University, Port Elizabeth, South Africa
| | - Katayoun Hatefi
- Department of Electrical and Computer Engineering, Isfahan University of Technology, Esfahan, Iran.
| | - Francis Le Roux
- Department of Mechatronics Engineering, Nelson Mandela University, Port Elizabeth, South Africa
| | - Javad Alizargar
- Research Center for Healthcare Industry Innovation, National Taipei University of Nursing and Health Sciences, Taipei, 112, Taiwan
| | | | - Yimesker Yihun
- Robotics Laboratory, Department of Mechanical Engineering, Wichita State University, Wichita, USA
| | - Khaled Abou-El-Hossein
- Precision Engineering Laboratory, Nelson Mandela University, Port Elizabeth, South Africa
| |
Collapse
|
5
|
Hatefi S, Etemadi Sh M, Yihun Y, Mansouri R, Akhlaghi A. Continuous distraction osteogenesis device with MAAC controller for mandibular reconstruction applications. Biomed Eng Online 2019; 18:43. [PMID: 30961605 PMCID: PMC6454606 DOI: 10.1186/s12938-019-0655-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Accepted: 03/19/2019] [Indexed: 01/24/2023] Open
Abstract
Background Distraction osteogenesis (DO) is a novel technique widely used in human body reconstruction. DO has got a significant role in maxillofacial reconstruction applications (MRA); through this method, bone defects and skeletal deformities in various cranio-maxillofacial areas could be reconstructed with superior results in comparison to conventional methods. Recent studies revealed in a DO solution, using an automatic continuous distractor could significantly improve the results while decreasing the existing issues. This study is aimed at designing and developing a novel automatic continuous distraction osteogenesis (ACDO) device to be used in the MRA. Methods The design is comprised of a lead screw translation mechanism and a stepper motor, placed outside of the mouth to generate the desired continuous linear force. This externally generated and controlled distraction force (DF) is transferred into the moving bone segment via a flexible miniature transition system. The system is also equipped with an extra-oral ACDO controller, to generate an accurate, reliable, and stable continuous DF. Results Simulation and experimental results have justified the controller outputs and the desired accuracy of the device. Experiments have been conducted on a sheep jaw bone and results have showed that the developed device could offer a continuous DF of 38 N with distraction accuracy of 7.6 nm on the bone segment, while reducing the distraction time span. Conclusion Continuous DF with high resolution positioning control, along with the smaller size of the distractor placed in the oral cavity will help in improving the result of the reconstruction operation and leading to a successful DO procedure in a shorter time period. The developed ACDO device has less than 1% positioning error while generating sufficient DF. These features make this device a suitable distractor for an enhanced DO treatment in MRA.
Collapse
Affiliation(s)
- Shahrokh Hatefi
- Department of Mechatronics Engineering, Nelson Mandela University, Port Elizabeth, South Africa
| | - Milad Etemadi Sh
- Department of Oral and Maxillofacial Surgery, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Yimesker Yihun
- Department of Mechanical Engineering, Wichita State University, Wichita, USA
| | - Roozbeh Mansouri
- Center for Advanced Engineering Research, Najaf Abad Branch, Islamic Azad University, Isfahan, Iran
| | | |
Collapse
|
6
|
Abstract
The purpose of this study was to demonstrate that automated, continuous, curvilinear distraction osteogenesis (DO) in a minipig model is effective when performed bilaterally, at rates up to 3 mm/day, to achieve clinically relevant lengthening. A Yucatan minipig in the mixed dentition phase underwent bilaterally, at a continuous DO at a rate of 2 mm/day at the center of rotation; 1.0 and 3.0 mm/day at the superior and inferior regions, respectively. The distraction period was 13 days with no latency period. Vector and rate of distraction were remotely monitored without radiographs, using the device sensor. After fixation and euthanasia, the mandible and digastric muscles were harvested. The ex vivo appearance, stability, and radiodensity of the regenerate were evaluated using a semiquantitative scale. Percent surface area (PSA) occupied by bone, fibrous tissue, cartilage, and hematoma were calculated using histomorphometrics. The effects of DO on the digastric muscles and mandibular condyles were assessed via microscopy, and degenerative changes were quantified. The animal was distracted to 21 mm and 24 mm on the right and left sides, respectively. Clinical appearance, stability, and radiodensity were scored as "3" bilaterally indicating osseous union. The total PSA occupied by bone (right = 75.53 ± 2.19%; left PSA = 73.11 ± 2.18%) approached that of an unoperated mandible (84.67 ± 0.86%). Digastric muscles and condyles showed negligible degenerative or abnormal histologic changes. This proof of principle study is the first report of osseous healing with no ill-effect on associated soft tissue and the mandibular condyle using bilateral, automated, continuous, and curvilinear DO at rates up to 3 mm/day. The model approximates potential human application of continuous automated distraction with a semiburied device.
Collapse
|
7
|
Nooh N, Abdullah WA, El-Awady Grawish M, Ramalingam S, Hassan G, Javed F, Al-Hezaimi K. Evaluation of bone regenerative capacity following distraction osteogenesis of goat mandibles using two different bone cutting techniques. J Craniomaxillofac Surg 2014; 42:255-61. [PMID: 23810515 DOI: 10.1016/j.jcms.2013.05.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2013] [Revised: 05/07/2013] [Accepted: 05/07/2013] [Indexed: 11/17/2022] Open
Affiliation(s)
- Nasser Nooh
- Department of Oral and Maxillofacial Surgery, College of Dentistry, King Saud University, PO Box 60169, Riyadh 11545, Saudi Arabia; Engineer Abdullah Bugshan Research Chair for Growth Factors and Bone Regeneration, 3D Imaging and Biomechanical Lab, College of Biomedical Applied Science, King Saud University, Saudi Arabia.
| | - Walid A Abdullah
- Department of Oral and Maxillofacial Surgery, College of Dentistry, King Saud University, PO Box 60169, Riyadh 11545, Saudi Arabia; Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
| | - Mohammed El-Awady Grawish
- Oral Medicine and Diagnostic Science, College of Dentistry, King Saud University, Riyadh, Saudi Arabia; Department of Oral Biology, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
| | - Sundar Ramalingam
- Department of Oral and Maxillofacial Surgery, College of Dentistry, King Saud University, PO Box 60169, Riyadh 11545, Saudi Arabia
| | - Ghada Hassan
- Oral Biology, Dental Health Department, College of Applied Medical Sciences, King Saud University, Saudi Arabia
| | - Fawad Javed
- Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia; Engineer Abdullah Bugshan Research Chair for Growth Factors and Bone Regeneration, 3D Imaging and Biomechanical Lab, College of Biomedical Applied Science, King Saud University, Saudi Arabia
| | - Khalid Al-Hezaimi
- Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia; Engineer Abdullah Bugshan Research Chair for Growth Factors and Bone Regeneration, 3D Imaging and Biomechanical Lab, College of Biomedical Applied Science, King Saud University, Saudi Arabia
| |
Collapse
|
8
|
Cerveri P, Zazzarini CC, Patete P, Baroni G. A micro-optical system for endoscopy based on mechanical compensation paradigm using miniature piezo-actuation. Med Eng Phys 2014; 36:684-93. [PMID: 24629626 DOI: 10.1016/j.medengphy.2014.02.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 12/09/2013] [Accepted: 02/13/2014] [Indexed: 01/28/2023]
Abstract
The goal of the study was to investigate the feasibility of a novel miniaturized optical system for endoscopy. Fostering the mechanical compensation paradigm, the modeled optical system, composed by 14 lenses, separated in 4 different sets, had a total length of 15.55mm, an effective focal length ranging from 1.5 to 4.5mm with a zoom factor of about 2.8×, and an angular field of view up to 56°. Predicted maximum lens travel was less than 3.5mm. The consistency of the image plane height across the magnification range testified the zoom capability. The maximum predicted achromatic astigmatism, transverse spherical aberration, longitudinal spherical aberration and relative distortion were less than or equal to 25μm, 15μm, 35μm and 12%, respectively. Tests on tolerances showed that the manufacturing and opto-mechanics mounting are critical as little deviations from design dramatically decrease the optical performances. However, recent micro-fabrication technology can guarantee tolerances close to nominal design. A closed-loop actuation unit, devoted to move the zoom and the focus lens sets, was implemented adopting miniaturized squiggle piezo-motors and magnetic position encoders based on Hall effect. Performance results, using a prototypical test board, showed a positioning accuracy of less than 5μm along a lens travel path of 4.0mm, which was in agreement with the lens set motion features predicted by the analysis. In conclusion, this study demonstrated the feasibility of the optical design and the viability of the actuation approach while tolerances must be carefully taken into account.
Collapse
Affiliation(s)
- Pietro Cerveri
- Department of Electronics, Information and Bioengineering, Politecnico di Milano University, Milan 20133, Italy.
| | - Cynthia Corinna Zazzarini
- Department of Electronics, Information and Bioengineering, Politecnico di Milano University, Milan 20133, Italy
| | - Paolo Patete
- Department of Electronics, Information and Bioengineering, Politecnico di Milano University, Milan 20133, Italy
| | - Guido Baroni
- Department of Electronics, Information and Bioengineering, Politecnico di Milano University, Milan 20133, Italy
| |
Collapse
|