Anti-air embolism and antiblood loss device for CVP catheter
First Claim
1. An anti-air embolism safety device adapted for placement between a central venous pressure (CVP) catheter which is attached to a patient and an external source of intravenous fluid being infused into the patient, comprising:
- (a) a formed body adapted to operably connect the catheter and the external fluid source;
(b) an inlet connection means within the body adapted to operably connect with said fluid source;
(c) a fluid outlet means on the body and further comprising means for locking the outlet means to the catheter;
(d) a first passageway within the body communicating between the inlet and the outlet means and adapted for intravenous fluid passage therethough;
(e) a first occluder means interposed within the first passageway biased to prevent the entrainment of air therein, and of any airflow to the catheter secured to the outlet means upon the accidental cessation of fluid passage into said inlet means; and
(f) further wherein (i) a second passageway is provided in said body connecting the inlet and outlet sections of the first passageway so as to bypass the first occluder means and (ii) having a second occluder means normally inserted into said second passageway and being associated with (iii) a linear biasing means that normally interposes the second means into said second passageway to occlude same and (iii) manually operable position adjusting means pinned to the biasing means, adapted for exerting a counterforce against the normal passageway occluding position of said second means sufficient to retract same from said second passageway.
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Accused Products
Abstract
An anti-air embolism device for use between a patient'"'"'s CVP catheter and source of fluid comprising inlet connection mean adapted to connect said device with a source of fluid; an outlet means including means for locking said device to the patient'"'"'s CVP catheter; a passageway connecting said inlet and outlet connection means for fluid passage, and an occluder interposed within said passageway to prevent the entrainment of air within the patient'"'"'s CVP catheter upon disconnection of a source of fluid at said inlet connection means.
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Citations
6 Claims
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1. An anti-air embolism safety device adapted for placement between a central venous pressure (CVP) catheter which is attached to a patient and an external source of intravenous fluid being infused into the patient, comprising:
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(a) a formed body adapted to operably connect the catheter and the external fluid source; (b) an inlet connection means within the body adapted to operably connect with said fluid source; (c) a fluid outlet means on the body and further comprising means for locking the outlet means to the catheter; (d) a first passageway within the body communicating between the inlet and the outlet means and adapted for intravenous fluid passage therethough; (e) a first occluder means interposed within the first passageway biased to prevent the entrainment of air therein, and of any airflow to the catheter secured to the outlet means upon the accidental cessation of fluid passage into said inlet means; and (f) further wherein (i) a second passageway is provided in said body connecting the inlet and outlet sections of the first passageway so as to bypass the first occluder means and (ii) having a second occluder means normally inserted into said second passageway and being associated with (iii) a linear biasing means that normally interposes the second means into said second passageway to occlude same and (iii) manually operable position adjusting means pinned to the biasing means, adapted for exerting a counterforce against the normal passageway occluding position of said second means sufficient to retract same from said second passageway. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification