1. Bending pliers comprising:
first and second plier bodies connected together to be turnable relative to each other in mutually intersecting intermediate portions thereof by use of a pivot shaft,
the first and second plier bodies including
first and second holding arms formed on one-end sides of the first and second plier bodies, respectively, the first and second holding arms respectively having first and second claw portions formed in their respective tip end portions and configured to hold a panel which is to be bent, and
first and second handles formed on opposite-end sides of the first and second plier bodies, respectively, and configured to open and close the first and second holding arms,
wherein a columnar bending fulcrum portion extending parallel to the pivot shaft and projecting toward the second claw portion is formed at a tip end of the first claw portion, and
a tip end of the second claw portion is opposed to the bending fulcrum portion with a gap therebetween.
2. The bending pliers according to claim 1, wherein
the first and second holding arms are formed by bending while locating the second holding arm inside, and
the first and second handles are formed by bending while locating the first handle inside.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method of manufacturing an inflatable balloon cuff comprising:
providing an inflatable balloon cuff comprising:
a tapered section along the length along an axis of the inflated balloon cuff, wherein at least a portion of the tapered section is adapted to form a seal against a tracheal wall of a patient, wherein the tapered section comprises:
a sealing portion, wherein the sealing portion is adapted to form a wrinkle-free band against a patient’s tracheal wall when inflated, wherein the wrinkle-free sealing band is configured to prevent leakage of fluid past the wrinkle-free sealing band when inflated; and
a wrinkled portion, wherein a largest diameter of the wrinkled portion is larger than a tracheal diameter such that the wrinkled portion is adpopted to form a wrinkled band against a patient’s tracheal wall when inflated and wherein the wrinkled band is longer than the wrinkle-free band.
2. The method of claim 1, wherein the tapered section comprises a substantially constant taper rate along the length of the tapered section.
3. The method of claim 1, wherein the balloon cuff is configured to be inflated to intra cuff inflation pressures of 10-30 cm H2O.
4. The method of claim 1, wherein the wrinkle-free sealing band is between 1-3 millimeters in length.
5. The method of claim 1, wherein the wrinkle-free sealing band is between 3-6 millimeters in length.
6. The method of claim 1, wherein the balloon cuff comprises polyethylene teraphthalate (PETP), low-density polyethylene (LDPE), polyvinyl chloride (PVC), silicone, neoprene, polyisoprene, polypropylene, or polyurethane (PU).
7. The method of claim 1, wherein narrowest portion of the tapered section has a balloon wall diameter that is less than 0.60 inches when the balloon cuff is fully inflated.
8. The method of claim 1, wherein the tapered section comprises balloon wall diameters between 1.75 inches and 0.15 inches when the balloon cuff is fully inflated.
9. The method of claim 1, wherein the tapered section comprises balloon wall thicknesses between 0.5 mils and 3 mils.
10. A method of sealing a patient’s trachea comprising:
wherein at least a portion of the tapered section is adapted to form a wrinkle-free sealing band against a patient’s tracheal wall and adjacent to the wrinkle-free sealing band when the balloon cuff is inflated to an intracuff pressure of 10-30 cm H2O;
and wherein at least a portion of the tapered section is adapted to form a wrinkled band against the tracheal wall, wherein the wrinkled band is longer than the wrinkle-free sealing band when the balloon cuff is inflated within the trachea.
11. The method of claim 10, wherein the wrinkled band is disposed on the cuff proximally of the wrinkle-free sealing band.
12. The inflatable method of claim 10, wherein the wrinkle-free sealing band is formed when the balloon cuff is inflated to an intracuff pressure of 20-25 cm H2O.