scholarly journals Efficacy of three different methods for side port incision wound sealing

2013 ◽  
Vol 72 (6) ◽  
pp. 379-382
Author(s):  
Fabiana K. Kashiwabuchi ◽  
Yasin A. Khan ◽  
Murilo W. Rodrigues Jr ◽  
Jiangxia Wang ◽  
Peter J. McDonnell ◽  
...  
Keyword(s):  
Author(s):  
Mirka Deza ◽  
Francine Battaglia

Fluidized beds are being used in practice to gasify biomass to create producer gas, a flammable gas that can be used for process heating. However, recent literature has identified the need to better understand and characterize biomass fluidization hydrodynamics, and computational fluid dynamics (CFD) is one approach in this effort. Previous work by the authors considered the validity of using two-dimensional versus three-dimensional simulations to model a cold-flow fluidizing biomass bed configured with a single side port air injection. The side port is introduced to inject air and promote mixing within the bed. Comparisons with experiments indicated that three-dimensional simulations were necessary to capture the fluidization behavior for the more complex geometry. This paper considers the effects of increasing fluidization air flow and side port air flow on the homogeneity of the bed material in a 10.2 cm diameter fluidized bed. Two air injection ports diametrically opposed to each other are also considered to determine their effects on fluidization hydrodynamics. Whenever possible, the simulations are compared to experimental data of time-averaged local gas holdup obtained using X-ray computed tomography. This study will show that increasing the fluidization and side port air flows contribute to a more homogeneous bed. Furthermore, the introduction of two side ports results in a more symmetric gas-solid distribution.


2012 ◽  
Vol 32 (suppl_1) ◽  
Author(s):  
Mark Arokiaraj ◽  
Luis Guerrero ◽  
Robert Levine ◽  
Igor Palacios

Background: To investigate the potential role of balloon mediated thrombolysis and venous angioplasty in acute ileofemoral thrombosis and to develop novel balloon catheter models for the same purpose. Methods: 2 patients and 1 patient on followup with extensive acute ileofemoral and popliteal vein thrombosis and partially extending into the inferior venacava (IVC) with diffuse swelling of lower limb and gluteal region were studied. The second patient stopped anticoagulation and presented with ileofemoral thrombosis in contralateral limb on followup. In both patients Gunther Tulip (Cook) IVC filter was placed. A 5F Multipurpose catheter with sideholes was placed in common iliac vein bifurcation and thrombolysis was done for 18 hours with streptokinase at 5000U/hr. Post thrombolysis IVC angiogram showed mild recanalisation of left common iliac veins leaving a stump. On the next day, the left common iliac vein was cannulated through a 5F Torcon catheter and a Terumo 035 J tipped wire was advanced through the clots. A 5cm x 4mm peripheral balloon was advanced and balloon directed 24 hour thrombolysis with streptokinase was done at 5000U/hr. The balloon was pulled back and multiple serial dilatations were done in femoral, internal iliac and common iliac veins. In both patients thrombolysis was started on the third day after the onset of symptoms. Results: Post procedure the venous channels were opened and were draining adequately. Limb edema subsided and there was no bleeding or embolic complications. Both patients are on oral anticoagulation and now on follow-up for 8 months being asymptomatic at present. Based on these interventions two novel balloon models to thrombolyse and to perform venous angioplasty simultaneously in a single procedure was developed. The first is a piggyback model which has a side port attached to the shaft of the balloon (5cm length and 4mm breath). The other model is a horse shoe balloon catheter which has a 14cm long and 4mm wide compliant balloon with 0.75mm diameter side port for thrombolysis till the balloon tip and on cross section gives a horse shoe appearance. Conclusion: Balloon mediated thrombolysis and venous angioplasty after IVC filter insertion is useful and novel balloon catheter models may be used in ileofemoral venous thrombosis.


2010 ◽  
Vol 36 (2) ◽  
pp. 362
Author(s):  
Devesh Varma ◽  
Iqbal Ike K. Ahmed
Keyword(s):  

2011 ◽  
Vol 37 (7) ◽  
pp. 1375-1376
Author(s):  
İzzet Can ◽  
Hasan Ali Bayhan ◽  
Hale Çelik ◽  
Başak Bostancı Ceran

Author(s):  
Zülfükar SARITAŞ ◽  
Musa KORKMAZ ◽  
Hasan Hüseyin DEMİREL ◽  
Aziz BÜLBÜL ◽  
Tuba Berra SARITAŞ ◽  
...  
Keyword(s):  

2014 ◽  
Vol 1 (1) ◽  
pp. 73-77
Author(s):  
Uma Maheswari P ◽  
Shalimol A ◽  
Arumugasamy A ◽  
Udhaya Sankar M.R

The present experimental study was designed to evaluate the wound healing activity of methanolic extract of Smilax wightii A. DC. on incision and excision wound models in Wistar albino rats. The parameters studied were wound breaking strength, wound contraction area, epithelialization period, granulation tissuewet, dry weight and hydroxyproline content in incision wound model, percentage of wound contraction and period of epithelialization in excision wound model. The rats were administered topically with 100mg/kg b.wt. (low dosage), 200mg/kg b.wt. (moderate dosage) and 500mg/kg b.wt. (high dosage) of methanolicextract of Smilax wightii (MESW). The activity of the extract treated groups were compared with that of the control 1% Spirit. Framycetin sulphate 0.2% w/w was used as the standard drug. In incision wound model, there was a significant increase in the wound breaking strength in all the experimental groups treated withMESW than that of the control. Similarly, significant (P<0.001) decrease in wound contraction area and period of epithelialization were also observed in the test group animals treated with MESW and the standard drug treated groups when compared to that of the control. , a significant increase was observed in granulation tissue wet and dry weight and hydroxyproline content in the test groups treated with MESW compared to the control. In exicision wound model, there was a significant increase (P<0.01) in the percentage of wound contraction and decrease in period of epithelialization in the experimental groups treated with 200mg/kgb.wt. (moderate dosage) and 500mg/kgb.wt (high dosage) of MESW. The extract treated groups showed significant improvement in all the wound healing parameters of incision, and excision wound models.


2020 ◽  
Vol 2 (6) ◽  
Author(s):  
Selina Wissen ◽  
Borman Sumaji ◽  
Dian Lesmana

Luka adalah cedera fisik yang mengakibatkan rusaknya kulit. Penanganan luka diperlukan untuk mencegah terjadinya infeksi. Agen topikal untuk luka insisi ekstraoral yang umumnya tersedia di puskesmas dan klinik-klinik kesehatan umum maupun gigi yaitu solutiopovidone iodine 10% dan unguentum kloramfenikol 2%. Tujuan penelitian ini adalah untuk mengetahui apakah terdapat perbedaan waktu penutupan luka insisi yang diaplikasikan solutiopovidone iodine 10% dengan unguentum kloramfenikol 2% pada mencit Swiss Webster. Penelitian ini bersifat eksperimental laboratorik, menggunakan 30 ekor mencit Swiss Webster yang dibagi menjadi 2 kelompok. Kelompok I adalah luka insisi pada paha kanan mencit dan diaplikasikan solutiopovidone iodine 10%. Kelompok II adalah luka insisi pada paha kiri mencit dan diaplikasikan unguentum kloramfenikol 2%. Data yang diukur adalah rerata waktu penutupan luka insisi untuk kedua kelompok, kemudian dianalisis menggunakan uji non parametrik Mann-Whitney. Rerata waktu penutupan luka insisi yang diaplikasikan solutiopovidone iodine 10% adalah 5,07±0,691 hari, dan yang diaplikasikan unguentum kloramfenikol 2% adalah 5,03±0,765 hari. Simpulan penelitian adalah tidak terdapat perbedaan waktu penutupan luka insisi yang diaplikasikan solutio povidone iodine 10% dengan unguentum kloramfenikol 2% pada mencit Swiss Webster.   Kata kunci: waktu penutupan luka, luka insisi, solutio povidone iodine 10%, unguentum kloramfenikol 2%  


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