Balloon diameter

The majority of patients received either a 15 mm stent (71 patients, 41 %), a 18 mm stent (38 patients, 22%), or an I I mm stent (32 patients, 18%). Mean balloon diameter and length were 3.3 and 16.6mm, respectively. Mean maximum balloon inflation pressure was 13.3 atm. Delivery balloon rupture occurred in four patients (2%) during the stent placement. The... 

Think of several devices that might be used to measure fluid pressures, being as imaginative as you can. Example Allow a gas at the pressure to be measured to fill a calibrated balloon, and measure the final balloon diameter.)... 

Case d Amorphous balloons, Le., hollow amorphous spherical particles several microns in diameter, were observed in some cases. They are characterized by various expansion degrees. We observed that the balloons diameter increases with CO2 density. Examples of this morphology were observed during the study of the precipitation of Yttrium acetate (YAc) (superconductor precursors) from DMSO at 120 bar and 40 °C (Figure 3) and of Cefonicid (antibiotic) from DMSO at 150 bar and 60... 

More recently, the minimally invasive limited ligation endoluminal-assisted revision (MILLER) technique describes a modified method ofbanding [26]. In this procedure, the fistula is exposed, and a 4- to 5-mm balloon is introduced into the fistula and inflated. A nonresorbable suture is tied around the inflated balloon and vein to achieve a defined reduction in balloon diameter. In the original report of 16 patients, all had improvement in symptoms, 2 required further revision of their fistulae, and all were patent at a mean of 3 months of follow-up. 

Crank, J., Whitmore, D.D. (1953), Balloon diameters and thread tensions calculated for different cap-spinning conditions, Textile Research Journal, 23, pp. 657-663... 

CP-1 was assembled in an approximately spherical shape with the purest graphite in the center. About 6 tons of luanium metal fuel was used, in addition to approximately 40.5 tons of uranium oxide fuel. The lowest point of the reactor rested on the floor and the periphery was supported on a wooden structure. The whole pile was surrounded by a tent of mbberized balloon fabric so that neutron absorbing air could be evacuated. About 75 layers of 10.48-cm (4.125-in.) graphite bricks would have been required to complete the 790-cm diameter sphere. However, criticality was achieved at layer 56 without the need to evacuate the air, and assembly was discontinued at layer 57. The core then had an ellipsoidal cross section, with a polar radius of 209 cm and an equatorial radius of309 cm [20]. CP-1 was operated at low power (0.5 W) for several days. Fortuitously, it was found that the nuclear chain reaction could be controlled with cadmium strips which were inserted into the reactor to absorb neutrons and hence reduce the value of k to considerably less than 1. The pile was then disassembled and rebuilt at what is now the site of Argonne National Laboratory, U.S.A, with a concrete biological shield. Designated CP-2, the pile eventually reached a power level of 100 kW [22]. 

The multichannel tube is made from polyvinyl chloride and is 175 cm long, with an external diameter of 5.3 mm. It contains six channels and is provided distally with two 40 mm-long, elongated latex balloons, placed 10 cm apart each of these is separately connected to one of the smaller channels. The two wider channels in the center of the tube are for infusion and aspiration of perfusate. The two remaining... 

When the rubber is heated from 253 K to 298 K, the E-modulus becomes 298/253 = 1.18 times higher. The wall stress in the balloon will increase by 18% and the diameter decreases to 20/1.18 = 17 cm. Gradually the air in the balloon will be heated up, and the pressure will increase proportionally to the absolute temperature. Eventually the old diameter of 20 cm will be reached. 

A spherical balloon 100 ft in diameter is filled with a gas having a density one-fifth that of air The density of air is 1 20g/liter How many pounds, including its own weight, can the balloon lift9 lift is t"e ci erencc e tween the weight of the gas and that of an equal volume of air )... 

A rubber balloon weighing 5 0 g is 12 inches in diameter when filled with hydrogen at 730 torr and 25°C How much will the balloon lift in addition to ns own weight5 (Assume the density of mr to be 12 g/liter under theSe condl ... 

A rubber balloon weighing 10 g is 15 inches in diameter when inflated with helium at 735 torr and 75°F How much weight will the balloon lift in addition to its own weight"7 (Assume the density of alr to be 1 20 g/hter under these... 

Complications reported with this type of intervention are rare, Rupture of the annulus is reported. The tricuspid valve may also be damaged if a large diameter balloon catheter has been passed inadvertently through the tricuspid valve chordae. After inflation, the balloon is relatively bulky and as it is removed the tricuspid valve apparatus may be disrupted causing regurgitation. A procedure-associated death rate of 0.24% and a major complication rate of 0.35% were found in a large study comprising 822 balloon pulmonary valvuloplasty procedures (15). 

A guidewire and subsequently a balloon catheter (2.0-2.5 mm in diameter) are advanced into the septal perforator. Identification of the target territory is performed by contrast echocardiography to determine the most appropriate septal perforator for ethanol infusion by showing echo... 

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