scholarly journals Development of a Magnetic Targeting Device Applied to Interlocking of Distal Intramedullary Nail Screw Holes

2003 ◽  
Author(s):  
David C. Szakelyhidi
Keyword(s):  
Radiation Exposure ◽  
Intramedullary Nail ◽  
Magnetic Targeting ◽  
The Novel ◽  
Intramedullary Nails ◽  
Current Technology ◽  
Novel Device ◽  
Distal Interlocking ◽  
Correct Location

A magnetic targeting device was developed to assist orthopedic surgeon’s with distal interlocking of intramedullary nails, in which the novel device aligns the surgeon’s drill at the correct location for drilling. This device has significant advantages over current technology, being percutaneous, portable, and using no fluoroscopy for targeting. This device can allow shorter surgery, decreased radiation exposure, and fewer complications for the surgeon and patient.

EFFICACY OF A NOVEL DEVICE TO DETECT, ALERT AND RESOLVE NEONATAL APNEA - PILOT STUDY

2019 ◽  
Vol 9 (9) ◽  
pp. 608-613
Author(s):  
Dr. Swapna Lingaldinna,Dr. Himabindu Singh,Mona Sharma*
Keyword(s):  
Newborn Care ◽  
Standard Of Care ◽  
The Novel ◽  
Tertiary Referral ◽  
Tertiary Referral Hospital ◽  
Care Community ◽  
Novel Device ◽  
Sick Newborn ◽  
Central Apneas ◽  
Neonatal Apnea

Objective: To measure the accuracy of a novel device in detecting Bradycardia andDesaturation (B&D) events and to determine its efficacy in resolving apneas innewborns with comparison to standard monitor (which only detects B&D eventsand alerts).Design: This was a prospective observational study.Setting: Sick Newborn Care Unit of a large tertiary referral hospital in Hyderabad,India.Methods: 31 newborns were provided with a novel device, which monitored oxygensaturation and pulse rate and alarmed when values dropped below a set thresholdwhich is referred as an event, henceforth. The novel device also provided footstimulation in response to above-mentioned events. When the monitor alarmed, anurse attended to the baby to confirm whether the baby was breathing and whetherthe event had been resolved by the device. If the event had not resolved, appropriateaction as per the standard-of-care was performed.Results: The novel device “ApneBootTM” positively detected B&D events 94.03% oftimes as compared to the standard reference monitor. 56 of 67 observed B&D eventswere visually confirmed to be apneas, indicating that 83.6% of B&D eventscoincided with apneas. Of the 56 apneic events, 50 were central apneas, of which 35were resolved by the novel device, making the device’s efficacy of apnea resolution70%.Conclusion: The results of the study indicate that this novel device “ApneBootTM”is very effective in detecting and alarming B&D events, which coincides with theapnea, and resolving it by providing foot stimulation.Keywords: Novel Device, Neonatal Apnea, Low Birth Weight, Body Temperature,Kangaroo Mother Care, Community Health,

Measuring Earwax Cortisol Concentration Using a Non-Stressful Method (Preprint)

2020 ◽  
Author(s):  
Andrés Herane-Vives
Keyword(s):  
Cortisol Level ◽  
Local Stress ◽  
Extraction Methods ◽  
Cortisol Concentration ◽  
The Novel ◽  
Sampling Device ◽  
Related Factors ◽  
Novel Device ◽  
Cortisol Levels ◽  
The Right

BACKGROUND “Short-term” samples are not the most appropriate for reflecting Chronic Cortisol Concentration (CCC). Although hair is used for reflecting the systemic cortisol level over “long-term”, its use appears clinically problematic. Local stress and non-stress related factors may release a circumscribed cortisol secretion that is accumulated in hair. Non-stressful earwax extraction methods may provide a more accurate specimen to measure CCC. OBJECTIVE Correlate cortisol levels using hair, serum and earwax samples METHODS Earwax from both ears of 37 controls were extracted using a clinical procedure commonly associated with local pain. One month later, earwax from the left ear side was extracted using the same procedure, and earwax from the right ear side was comfortably extracted, using an earwax self-sampling device. Participants also provided one centimetre of hair that represented the retrospective month of cortisol output, and one serum sample that reflected the effect of systemic stressors on cortisol levels. Earwax (ECC), Hair (HCC) and Serum (SCC) Cortisol Concentration were correlated and compared. Confounders´ effect on cortisol levels were studied. RESULTS Serum showed the largest and hair the lowest cortisol concentration (p<0.01). Left-ECC was larger than Right-ECC (p=0.03). Right-ECC was the only sample unaffected by confounders (all p>0.05). Right-ECC and HCC showed the only significant association (r=0.39; p=0.03). CONCLUSIONS The self-sampling device did not represent a local stressor for the ceruminous glands. It provided the cortisol level with the least likely to be affected by confounding factors over the previous month. ECC using the novel device may constitute another accurate, but more suitable and affordable specimen for measuring CCC.

Magnetic Targeting Systems for Endo-Bronchoscope Diagnosis and Intramedullary-Nail Surgery: A Review

2021 ◽  
pp. 1-1
Author(s):  
Chin-Chung Chen ◽  
Po-Chen Yeh ◽  
Chih-Cheng Cheng ◽  
Ching-Kai Lin ◽  
Tze-Hong Wong ◽  
...  
Keyword(s):  
Intramedullary Nail ◽  
Magnetic Targeting ◽  
Nail Surgery

scholarly journals The aiming device for cervical distractor pin insertion: a proof-of-concept, feasibility study

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Torphong Bunmaprasert ◽  
Sittichai Luangkittikong ◽  
Menghong Tosinthiti ◽  
Supachoke Nivescharoenpisan ◽  
Raphi Raphitphan ◽  
...  
Keyword(s):  
Radiation Exposure ◽  
Feasibility Study ◽  
Vertebral Body ◽  
The Novel ◽  
Cervical Lordosis ◽  
Proof Of Concept ◽  
Entry Points ◽  
Free Hand Technique ◽  
Anterior Discectomy And Fusion ◽  
Vertebral Endplates

Abstract Background Restoration of cervical lordosis after anterior discectomy and fusion is a desirable goal. Proper insertion of the vertebral distraction or Caspar pin can assist lordotic restoration by either putting the tips divergently or parallel to the index vertebral endplates. With inexperienced surgeons, the traditional free-hand technique for Caspar pin insertion may require multiple insertion attempts that may compromise the vertebral body and increase radiation exposure during pin localization. Our purpose is to perform a proof-of-concept, feasibility study to evaluate the effectiveness of a pin insertion aiming device for vertebral distraction pin insertion. Methods A Smith-Robinson approach and anterior cervical discectomy were performed from C3 to C7 in 10 human cadaveric specimens. Caspar pins were inserted using a novel pin insertion aiming device at C3-4, C4-5, C5-6, and C6-7. The angles between the cervical endplate slope and Caspar pin alignment were measured with lateral cervical imaging. Results The average Superior Endplate-to-Caspar Pin angle (SE-CP) and the average Inferior Endplate-to-Caspar Pin angle (IE-CP) were 6.2 ± 2.0° and 6.3 ± 2.2° respectively. For the proximal pins, the SE-CP and the IE-CP were 4.0 ± 1.1°and 5.2 ± 2.4° respectively. For the distal pins, the SE-CP and the IE-CP were 7.7 ± 1.4° and 6.2 ± 2.0° respectively. No cervical endplate violations occurred. Conclusion The novel Caspar pin insertion aiming device can control the pin entry points and pin direction with the average SE-CP and average IE-CP of 6.2 ± 2.0° and 6.3 ± 2.2°, respectively. The study shows that the average different angles between the Caspar pin and cervical endplate are less than 7°.

scholarly journals Comparing Effectiveness Between a Power-Drill-Mounted Device and Conventional Free-Handed Technique for Distal Locking of Intramedullary Implants

2014 ◽  
Vol 2 (11_suppl3) ◽  
pp. 2325967114S0022
Author(s):  
Supachoke Wattanakitkrileart ◽  
Boonsin Tangtrakulwanich ◽  
Varah Yuenyongviwat
Keyword(s):  
Radiation Exposure ◽  
Exposure Time ◽  
Operative Time ◽  
Operating Time ◽  
Surgical Team ◽  
Intramedullary Nails ◽  
Distal Locking ◽  
Orthopedic Surgeons ◽  
Power Drill ◽  
Intramedullary Implants

Objectives: The procedure for distal locking of intramedullary nails (IM nail) is one of the time-consuming procedures and also exposes the surgical team and patient to high levels of radiation. Many techniques and devices have been created to solve the problems. Nonetheless, conventional free-hand technique is still the most popular due to easy-to-use and no added device needed. This research aims to study the accuracy of a drill-mounted device with free-handed technique in the distal locking of IM nail procedure. Methods: This is an experimental study. The device was made from PVC pipes. In this study, IM-nail-inserted synthetic femoral bones (Synbone®) were set as in IM nail procedure. Four orthopedic surgeons were instructed and performed the distal locking procedure with free-handed technique and then with the device (totally 20 times for each technique). The radiation exposure time and operating time were recorded. Results: The drill-mounted device reduced the radiation exposure time statistically significant lower than the free-handed technique. However, there was no different in operative time between the two techniques. Screw misdirection occurred two times in free-handed technique but not found in our device-assisted group. Conclusion: In this experiment, the new-designed device can reduce the radiation exposure time in distal IM nail interlocking procedure. Nonetheless, further clinical study is required to confirm our results.

scholarly journals PYROLYSIS OF SOLID WASTE AND ITS COMPONENTS IN A LAB SCALE INDUCTION-HEATING REACTOR

Detritus ◽  
2021 ◽  
pp. 107-112
Author(s):  
Oscar Sosa ◽  
Sylvie Valin ◽  
Sébastien Thiery ◽  
Sylvain Salvador
Keyword(s):  
Beech Wood ◽  
Fast Pyrolysis ◽  
Fluidized Bed Reactor ◽  
Thermochemical Conversion ◽  
Homogeneous Distribution ◽  
The Novel ◽  
Reaction Products ◽  
Heating Rates ◽  
Fast Heating ◽  
Novel Device

The present study investigates the thermochemical conversion of Solid Recovered Fuel (SRF), represented by selected “model materials”. A laboratory-scale induction heated device was specifically developed to achieve fast pyrolysis conditions close to those encountered in a fluidized bed reactor. The novel device can handle up to 5 grams of solid, allowing fast heating rates (near 70°C/s) and a homogeneous distribution of temperature all along the reactor. Pyrolysis tests of a SRF sample and four model materials (Polyethylene, Polyethylene Terephthalate, beech wood, cardboard) were performed at 800°C. The yield and composition of the produced gas for each sample were determined. Experimental results will help to elucidate the relation between the initial components of waste derived fuels and the obtained reaction products.

Sign in / Sign up

Export Citation Format

Share Document