Medical device and technique for using the same
An inflatable balloon cuff may be adapted to seal a patient's trachea when associated with an endotracheal tube. These cuffs may include indicia that facilitate attachment of the cuff relative to the tube to reduce manufacturing variability for such characteristics as rotational and length alignment. Such indicia may include protrusions that are formed in the wall of the cuff collars or may include visual indicators, e.g., colorimetric or shape-wise indicators. Cuffs with improved attachment relative to the tube may have increased sealing performance.
1. A tracheal tube comprising:
a conduit; and
a balloon cuff associated with the conduit, the balloon cuff comprising:
a proximal collar region in a wall of the balloon cuff attached to the conduit, the proximal collar region comprising a first indicator, wherein the first indicator is disposed about only a portion of a circumference of the proximal collar region and wherein the first indicator is disposed only on a portion of the proximal collar that is affixed to the conduit;
an inflatable region; and
a distal collar region in the wall of the balloon cuff attached to the conduit, the distal collar region comprising a second indicator, wherein the second indicator is disposed about only a portion of a circumference of the distal collar region and wherein the second indicator is disposed only on a portion of the distal collar that is affixed to the conduit, and wherein the first indicator and the second indicator are aligned along an imaginary axis substantially through the first indicator and the second indicator and along the length of the conduit.
2. The tracheal tube 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).
3. The tracheal tube of claim 1 , wherein the tracheal tube is operatively connected to a ventilator.
4. The tracheal tube of claim 1 , wherein at least one of the first indicator or the second indicator comprises a protrusion or depression.
5. The tracheal tube of claim 4 , wherein the protrusion or depression is raised at least 0.1 mm in relation to the balloon cuff.
6. The tracheal tube of claim 1 , wherein at least one of the first indicator or the second indicator comprises a colorimetric or chemical marker.
7. The tracheal tube of claim 1 , wherein the conduit comprises one or more X-ray lines that run along at least a portion of the length of the conduit and wherein the first indicator and the second indicator are substantially in alignment with at least one of the lines.
8. The tracheal tube of claim 1 , wherein the conduit comprises one or more alignment markers and wherein at least one of the first indicator or the second indicator are substantially aligned with at least one said alignment markers.
9. The tracheal tube of claim 8 , wherein the conduit comprises one or more protrusions.
10. The tracheal tube of claim 8 , wherein the conduit comprises a first alignment marker and a second alignment marker, and wherein when the first indicator and the second indicator are aligned with the first alignment marker and the second alignment marker, respectively, the balloon cuff is aligned with respect to a cuff length along the conduit.
11. The tracheal tube of claim 1 , wherein the conduit comprises a lumen capable of aspirating fluids from a region proximal to the balloon cuff when the balloon cuff is inflated.
12. An inflatable balloon cuff for use in conjunction with a medical device comprising:
a proximal collar in a wall of the balloon cuff that is affixed to the medical device, the proximal collar comprising a first indicator positioned about only a portion of an outer circumference of the proximal collar and wherein the first indicator is disposed on a region of the proximal collar that is affixed to the medical device; and
a distal collar in the wall of the balloon cuff that is affixed to the medical device, the distal collar comprising a second indicator, wherein the second indicator is positioned about only a portion of an outer circumference of the distal collar and wherein the second indicator is disposed on a region of the distal collar that is affixed to the medical device such that when the first indicator and the second indicator are aligned along an axis of the conduit, the proximal collar and the distal collar are not twisted relative to one another.
13. The inflatable balloon cuff of claim 12 , wherein the balloon cuff comprises polyethylene teraphthalate (PETP), low-density polyethylene (LDPE), polyvinyl chloride (PVC), silicone, neoprene, polyisoprene, polypropylene, or polyurethane (PU).
14. The inflatable balloon cuff of claim 12 , wherein the first indicator and the second indicator are not identical.
15. The inflatable balloon cuff of claim 12 , wherein at least one of the first indicator or the second indicator comprises a protrusion or depression.
16. The inflatable balloon cuff of claim 12 , wherein at least one of the first indicator or the second indicator comprises text or an image.
17. The inflatable balloon cuff of claim 12 , wherein the balloon cuff comprises a tapered cuff.
18. A medical device comprising:
a conduit with an associated balloon cuff, the balloon cuff comprising:
a proximal collar in a wall of the balloon cuff comprising a first protrusion or depression formed in the wall and wherein the first protrusion or depression is disposed only on a portion of the proximal collar that is affixed to the conduit; and
a distal collar in the wall of the balloon cuff comprising a protrusion or depression formed in the wall and wherein the second protrusion or depression is disposed only on a portion of the distal collar that is affixed to the conduit, wherein the first protrusion or depression and the second protrusion or depression are only within a 30° portion of an outer circumference of the conduit.
19. The medical device of claim 18 , wherein the 30° portion of the outer circumference of the conduit is indicated by a marker on the conduit.
20. The inflatable balloon cuff of claim 19 , wherein the marker comprises a line substantially parallel to a flow path of the conduit.