Custom-made mouth prop for TMJ arthrocentesis: a technical note

The combined use of three-dimensional reformatted images, stereolithographic models, and rapid prototyping allows the construction of an accurate, individually made titanium implant for the reconstruction of orbital floor defects. Despite the perfect fit of the custom-made plate to the model, there might be several locations on the bone where the plate may reside intraoperatively. Most titanium orbital plates therefore contain extensions over the inferior orbital rim to help locate and stabilize the plate in its position on the bone. Such over-the-rim extensions may be palpable and can cause discomfort postoperatively. We describe the use of two small detachable flanges that help to accurately locate the orbital plate in place and allow its fixation. The locating flanges are then detached and discarded, leaving a smooth implant surface within the confines of the bony orbit.

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Custom-Made Finger Guard to Prevent Wire-Stick Injury to the Operator's Finger while Performing Intermaxillary Fixation

Craniomaxillofacial Trauma & Reconstruction ◽

10.1055/s-0034-1378185 ◽

2014 ◽

Vol 7 (4) ◽

pp. 327-329

Author(s):

Ramesh Kumaresan ◽

Karthikeyan Ponnusami ◽

Priyadarshini Karthikeyan

Keyword(s):

Technical Note ◽

Dental Occlusion ◽

Intermaxillary Fixation ◽

Thermoplastic Material ◽

Cost Factor ◽

Finger Flexion ◽

Custom Made ◽

Maxillofacial Fractures ◽

Touch Sensitivity ◽

Cut Resistance

The treatment of maxillofacial fractures involves different methods from bandages and splinting to methods of open reduction and internal fixation and usually requires control of the dental occlusion with the help of intermaxillary fixation (IMF). Different wiring techniques have been used to aid in IMF including placement of custom-made arch bars, eyelet etc. However, these wiring techniques are with a constant danger of trauma to the surgeon's fingers by their sharp ends. Though there exist a variety of commercially available barrier products and customized techniques to prevent wire-stick injury, cost factor, touch sensitivity, and comfort aspect restrain their acquirement and exploit. This technical note describes the construction of a simple and economical finger guard made of soft thermoplastic material that provides an added protection to fingers from wire-stick type injuries, and its flexible nature permits a comfortable finger flexion movement and acceptable touch sensitivity. This is a simple, economical, reusable puncture, and cut-resistance figure guard by which we can avoid wire-stick type injury to the operator's fingers during wiring technique.

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Smart Spray Analytical System for Orchard Sprayer Calibration: A-Proof-of-Concept and Preliminary Results

Transactions of the ASABE ◽

10.13031/trans.13196 ◽

2020 ◽

Vol 63 (1) ◽

pp. 29-35

Author(s):

Haitham Y. Bahlol ◽

Abhilash K. Chandel ◽

Gwen-Alyn Hoheisel ◽

Lav R. Khot

Keyword(s):

Data Acquisition ◽

Data Storage ◽

Ground Level ◽

Technical Note ◽

Economic Losses ◽

Calibration Data ◽

Velocity Pattern ◽

Custom Made ◽

Graphical Visualization ◽

Analytical System

Abstract. Efficient chemical spray applications are vital to reduce off-target drift, economic losses to tree fruit growers, and negative environmental impacts. It is thus important to adequately calibrate and adjust orchard sprayers for intended applications. This technical note describes the design, prototyping, and field evaluation of a sensor-based smart spray analytical system (SSAS). The SSAS is equipped with units for spray capturing and volumetric quantification, air-assist velocity measurement, system actuation and control, and data acquisition and wireless transmission. The spray liquid and air-assist velocity quantification units are assembled on a custom-made mobile frame for vertical stop-and-go movement to provide measurements at eight distinct sampling heights above ground level. The data acquisition and transmission units autonomously log the data on-board and transmit wirelessly to a receiving computer with time and height stamps for real-time graphical visualization. All these autonomous processes are guided by a custom programmable single-board computer. The SSAS was preliminarily evaluated for spray liquid and air-assist velocity pattern assessment of an air-assisted orchard sprayer in four sets of spray trials. An average spray liquid recovery of 14.03% and pertinent coefficient of variation (CV) of 10.73% were observed. An average CV of 11.93% was observed in the air-assist velocity patterns. Overall, the SSAS provided measurements within acceptable ranges of variation. This system can thus minimize the experimental errors, time, and efforts involved in conventional assessments of sprayer attributes, thereby providing a reliable solution for orchard sprayer calibration and adjustment. Keywords: Air-assist velocity pattern, Airblast sprayer calibration, Data storage and transmission, Graphical visualization, Smart spray analytical system, Spray liquid pattern.

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Cosmetic and Neuroprotective Placement of Custom-Made Ultra-High-Molecular-Weight Polyethylene Cranial Plate (SKULPIO) in Single-Step Surgery: Technical Note and Case Report

World Neurosurgery ◽

10.1016/j.wneu.2019.07.026 ◽

2019 ◽

Vol 130 ◽

pp. 187-191

Author(s):

Tomoya Oishi ◽

Tetsuro Sameshima ◽

Takeaki Totsuka ◽

Tomohiro Yamasaki ◽

Shinichiro Koizumi ◽

...

Keyword(s):

Molecular Weight ◽

Case Report ◽

High Molecular Weight ◽

Technical Note ◽

Single Step ◽

Custom Made ◽

Ultra High Molecular Weight

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Interactive Use of Cerebral Angiography and Magnetoencephalography in Arteriovenous Malformations: Technical Note

Neurosurgery ◽

10.1097/00006123-200204000-00047 ◽

2002 ◽

Vol 50 (4) ◽

pp. 903-911 ◽

Cited By ~ 3

Author(s):

Toshifumi Kamiryo ◽

Joshua Cappell ◽

Eugene Kronberg ◽

Henry H. Woo ◽

Jafar J. Jafar ◽

...

Keyword(s):

Cerebral Angiography ◽

Arteriovenous Malformations ◽

Three Dimensional ◽

Technical Note ◽

Distortion Correction ◽

Custom Made ◽

Selective Targeting ◽

Coordinate Transfer ◽

Feeding Vessels ◽

Digital Subtraction Angiogram

Abstract OBJECTIVE: To minimize the risks associated with treating cortical cerebral arteriovenous malformations (AVMs), we developed a technique combining functional imaging and cerebral angiography. The functional loci obtained by performing magnetoencephalography (MEG) are projected onto stereoscopic pairs of a stereotactically derived digital subtraction angiogram. The result is a simultaneous three-dimensional perspective of the angioarchitecture of an AVM and its relationship to the sensorimotor cortex. METHODS: Eight patients underwent multimodality brain imaging, including magnetic resonance imaging, functional mapping via MEG, and stereotactic angiography using a modified Compass fiducial system (Compass International, Rochester, MN). The coordinates derived by performing MEG were superimposed onto stereotactic, stereoscopic, angiographic pairs using custom-made distortion correction and coordinate transfer software. RESULTS: The magnetoencephalographic angiogram allowed simultaneous viewing of the angioarchitecture of the AVM nidus, the feeding vessels, and the draining veins and their relationship to the normal cerebral vasculature and functional cortex. This imaging technique was particularly valuable in identifying en passant vessels that supplied functional cortex and was used during the treatment of these lesions. CONCLUSION: The techniques of MEG and cerebral angiography were combined to provide simultaneous viewing of both modalities in a three-dimensional perspective. This technique can aid in risk stratification in the management of patients with cerebral AVMs. In addition, this technique can facilitate the selective targeting of vessels, thus potentially reducing the risks associated with embolization of these formidable lesions.

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New AAC Access Strategy for Gesture Tracking: A Technical Note

Perspectives on Augmentative and Alternative Communication ◽

10.1044/aac21.1.11 ◽

2012 ◽

Vol 21 (1) ◽

pp. 11-16 ◽

Cited By ~ 1

Author(s):

Susan Fager ◽

Tom Jakobs ◽

David Beukelman ◽

Tricia Ternus ◽

Haylee Schley

Keyword(s):

Augmentative And Alternative Communication ◽

Technical Note ◽

Head Tracking ◽

Alternative Communication ◽

Access Methods ◽

Cord Injury ◽

Physical Limitations ◽

Gesture Tracking ◽

Communication Needs ◽

Tracking Device

Abstract This article summarizes the design and evaluation of a new augmentative and alternative communication (AAC) interface strategy for people with complex communication needs and severe physical limitations. This strategy combines typing, gesture recognition, and word prediction to input text into AAC software using touchscreen or head movement tracking access methods. Eight individuals with movement limitations due to spinal cord injury, amyotrophic lateral sclerosis, polio, and Guillain Barre syndrome participated in the evaluation of the prototype technology using a head-tracking device. Fourteen typical individuals participated in the evaluation of the prototype using a touchscreen.

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Technical Note

Journal of Water Supply Research and Technology—AQUA ◽

10.1046/j.1365-2087.1998.00092.x ◽

1998 ◽

Vol 47 (3) ◽

pp. 153-160

Author(s):

Wang ◽

Park ◽

Kang ◽

Oh

Keyword(s):

Technical Note

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