METHODS AND APPARATUS FOR SELECTIVELY OCCLUDING THE LUMEN OF A NEEDLE
First Claim
1. A device for parenterally transferring fluid to or from a patient, the device comprising:
- a housing that defines a fluid flow path, the housing configured to be coupleable to a fluid reservoir;
a needle having a distal end portion, a proximal end portion, and defining a lumen therebetween, the distal end portion configured for insertion into the patient, the proximal end portion configured to be fluidically coupleable to the fluid flow path; and
an occlusion mechanism operable to selectively control fluid flow between the needle and the fluid flow path, the occlusion mechanism including an occlusion member configured to selectively obstruct the lumen of the needle during insertion into the patient,the occlusion mechanism being configured to be moved between a first configuration such that the lumen of the needle is obstructed during insertion into the patient, and a second configuration such that the lumen of the needle is unobstructed after the needle has been inserted into the patient allowing fluid transfer to or from the patient.
2 Assignments
0 Petitions
Accused Products
Abstract
A fluid transfer device for parenterally transferring fluid to and/or from a patient includes a housing, a needle, and an occlusion mechanism. The housing defines a fluid flow path and is couplable to a fluid reservoir. The needle has a distal end portion that is configured to be inserted into the patient and a proximal end portion that is configured to be fluidically coupled to the fluid flow path of the housing, and defines a lumen therebetween. The occlusion mechanism selectively controls a fluid flow between the needle and the fluid flow path. The occlusion mechanism includes an occlusion member that is movable between a first configuration where the lumen of the needle is obstructed during insertion into the patient and a second configuration where the lumen of the needle is unobstructed after the needle has been inserted into the patient allowing fluid transfer to or from the patient.
27 Citations
32 Claims
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1. A device for parenterally transferring fluid to or from a patient, the device comprising:
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a housing that defines a fluid flow path, the housing configured to be coupleable to a fluid reservoir; a needle having a distal end portion, a proximal end portion, and defining a lumen therebetween, the distal end portion configured for insertion into the patient, the proximal end portion configured to be fluidically coupleable to the fluid flow path; and an occlusion mechanism operable to selectively control fluid flow between the needle and the fluid flow path, the occlusion mechanism including an occlusion member configured to selectively obstruct the lumen of the needle during insertion into the patient, the occlusion mechanism being configured to be moved between a first configuration such that the lumen of the needle is obstructed during insertion into the patient, and a second configuration such that the lumen of the needle is unobstructed after the needle has been inserted into the patient allowing fluid transfer to or from the patient. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 20, 21)
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6. (canceled)
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15. (canceled)
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16. (canceled)
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22. A device for parenterally transferring fluid to or from a patient, the device comprising:
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a needle having a distal end portion, a proximal end portion, and defining a lumen therebetween, the distal end portion configured for insertion into the patient, the proximal end portion configured to be fluidically coupleable to a fluid reservoir; and an occlusion mechanism operable to selectively control fluid flow between the patient and the fluid reservoir, the occlusion mechanism having a first configuration such that the lumen of the needle is obstructed during insertion into the patient, and a second configuration such that the lumen of the needle is unobstructed after the needle has been inserted into the patient allowing fluid transfer to or from the patient, the occlusion mechanism configured to automatically transition from the first configuration to the second configuration when the distal end portion of the needle is inserted into the patient. - View Dependent Claims (23, 24)
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25-28. -28. (canceled)
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29. A method for transferring fluid to or from a patient using a parenteral transfer device, the device including a needle having a lumen configured for insertion into the patient, and an occlusion mechanism operable to selectively control fluid flow to or from a patient through the needle lumen, the method comprising:
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disposing the occlusion mechanism in a first configuration in which the lumen of the needle is obstructed to prevent at least one of tissue, bodily fluid, and contaminants from entering the lumen; inserting the needle into the patient; and after the needle has been inserted into the patient, moving the occlusion mechanism to a second configuration in which the lumen of the needle is unobstructed allowing fluid transfer to or from the patient. - View Dependent Claims (30, 31)
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32-39. -39. (canceled)
Specification