Catheter assembly and related method
First Claim
1. A catheter assembly comprising:
- a catheter;
an anchor balloon attached to said catheter at a distal end thereof;
an ancillary balloon attached to said catheter at a point spaced in a proximal direction from said anchor balloon;
a tube connecting said ancillary balloon to said anchor balloon so as to enable communication therebetween, said anchor balloon, said tube and said ancillary balloon containing fluid in an essentially closed system to enable expansion of said anchor balloon by at least a partial collapse of said ancillary balloon; and
flow stoppage means mounted to said catheter for preventing said fluid from returning to said tube from said anchor balloon upon a pressurization of said anchor balloon with fluid forced from said tube by an application of pressure to said ancillary balloon.
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Accused Products
Abstract
A catheter assembly comprises a catheter and a sheath enclosing the catheter to preserve the sterility thereof, the sheath being provided with a plurality of fold lines which form accordion-like pleats to enable a collapse of the sheath at a point of insertion of the catheter into a patient. The sheath is provided at a distal end of the catheter with a flange for engaging a patient during an insertion of the catheter into the patient. A catheter assembly also comprises an anchor balloon attached to the catheter at a distal end thereof, an ancillary balloon attached to the catheter at a point spaced in a proximal direction from the anchor balloon, a tube connecting the ancillary balloon to the anchor balloon so as to enable communication therebetween, and a flow stop mounted to the catheter for preventing fluid from returning to the tube from the anchor balloon upon a pressurization of the anchor balloon with fluid forced from the tube by an application of pressure to the ancillary balloon. A hollow catheter plug defining a flash chamber and having a transparent wall is connected to the catheter at a proximal end thereof for communicating with the catheter. A valve is connected to the plug for preventing fluid flow from the flash chamber.
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Citations
45 Claims
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1. A catheter assembly comprising:
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a catheter; an anchor balloon attached to said catheter at a distal end thereof; an ancillary balloon attached to said catheter at a point spaced in a proximal direction from said anchor balloon; a tube connecting said ancillary balloon to said anchor balloon so as to enable communication therebetween, said anchor balloon, said tube and said ancillary balloon containing fluid in an essentially closed system to enable expansion of said anchor balloon by at least a partial collapse of said ancillary balloon; and flow stoppage means mounted to said catheter for preventing said fluid from returning to said tube from said anchor balloon upon a pressurization of said anchor balloon with fluid forced from said tube by an application of pressure to said ancillary balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A catheter assembly comprising:
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a catheter; a hollow catheter plug defining a flash chamber having a transparent wall, said plug being connected to said catheter at a proximal end thereof for communicating with said catheter; and valve means connected to said plug for preventing fluid flow from said chamber.
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13. A catheter assembly comprising:
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a catheter; and a sheath collapsible in a longitudinal direction and enclosing said catheter to preserve the sterility thereof, said sheath being provided at a distal end of said catheter with a flange for engaging a patient during an insertion of said catheter into the patient, said sheath being provided with a score line distally of said flange to enable a tearing off of a distal end portion of said sheath to expose a distal tip of said catheter. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A catheter assembly comprising:
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a catheter; a sheath collapsible in longitudinal direction, said sheath having a body portion containing said catheter and, at a distal end of said body portion, a chamber separable from said body portion; and an aliquot of an antibacterial agent disposed in said chamber. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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30. A method for inserting a catheter into a body organ of a patient, comprising the steps of:
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inserting a catheter into a patient, said catheter having an anchor balloon at a distal end and further having an ancillary balloon communicating with said anchor balloon and disposed proximally thereof, said anchor balloon and said ancillary balloon containing fluid in an essentially closed system, whereby collapse of said ancillary balloon results in an expansion of said anchor balloon; applying pressure to said ancillary balloon to at least partially collapse said ancillary balloon and thereby squeeze a pressurizing fluid from said ancillary balloon towards said anchor balloon; and upon an expansion of said anchor balloon in response to the application of pressure to said ancillary balloon, preventing fluid from flowing back from said anchor balloon towards said ancillary balloon. - View Dependent Claims (31, 32, 33, 34, 35, 36)
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37. A method for inserting a catheter into a body organ of a patient, comprising the steps of:
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providing a catheter enclosed by an internally sterile sheath; removing a distal end portion of said sheath so as to expose a distal end only of said catheter; inserting said distal end into a patient; and manipulating said catheter through said sheath to push said catheter into the patient while simultaneously collapsing said sheath into a shorted according-like configuration at a point of insertion of said catheter into the patient; during said step of inserting and manipulating, engaging said patient about said point of insertion with a flange provided at a distal end of said sheath, said sheath being provided with a score line distally of said flange, said step of removing including the step of tearing off said distal end portion of said sheath at said score line. - View Dependent Claims (38, 39, 40)
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41. A method for inserting a catheter into a body organ of a patient, comprising the steps of:
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providing a catheter enclosed by an internally sterile sheath, said sheath having a body portion containing said catheter and further having a chamber separable from said body portion and containing an aliquot of an antibacterial agent; tearing said sheath to expose said antibacterial agent; applying said antibacterial agent to a patient about a point of insertion of said catheter into the patient; acting on said sheath to expose a distal end only of said catheter; inserting said distal end of said catheter into the patient at said point of insertion upon the application of said antibacterial agent to a patient about said point of insertion; and manipulating said catheter through said sheath to push said catheter into the patient while simultaneously collapsing said sheath into a shortened accordion-like configuration at said point of insertion. - View Dependent Claims (42, 43, 44, 45)
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Specification