Vacuum setting and indication system for a drainage device
First Claim
1. A medical drainage device comprising:
- a casing, said casing defining a collection chamber therein for receiving fluid to be drained from a patient, and a vacuum regulator in communication with said collection chamber for limiting the amount of vacuum applied to said collection chamber, said vacuum regulator including a housing having an adjustable knob that extends outwardly from said housing and which operates to adjust the level of vacuum applied to the collection chamber, said adjustable knob having a slanted surface with a plurality of vacuum setting indicia thereon and an arrow for indicating the degree of vacuum being applied to said collection chamber.
6 Assignments
0 Petitions
Accused Products
Abstract
A drainage device is disclosed which has a casing that defines a collection chamber, water seal chamber and suction control chamber for the suctioning and collection of fluids shed from a patient'"'"'s chest cavity. The drainage device further comprises an improved vacuum regulator assembly connected to the casing which comprises a knob having a slanted surface with vacuum setting indicia marked thereon and a raised portion with a marker arrow for indicating the degree of vacuum being applied to the device. The configuration of the knob and the raised portion permits viewing from a number of directions by the user. The drainage device further comprises a vacuum indicator assembly having a base defining a recess having a slanted surface defining an aperture that communicates with the collection chamber. The slanted surface has a vacuum indicator which is masked by a flexible, collapsible thimble that covers the recess and forms a pocket therein. When vacuum is present in the collection chamber the thimble collapses over the slanted surface and exposes the vacuum symbol, while the absence of vacuum causes the thimble to inflate and mask the vacuum symbol from view. The raised beveled shape of the vacuum indicator assembly permits the user to view the vacuum symbol from either the top or sides of the drainage device.
56 Citations
27 Claims
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1. A medical drainage device comprising:
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a casing, said casing defining a collection chamber therein for receiving fluid to be drained from a patient, and a vacuum regulator in communication with said collection chamber for limiting the amount of vacuum applied to said collection chamber, said vacuum regulator including a housing having an adjustable knob that extends outwardly from said housing and which operates to adjust the level of vacuum applied to the collection chamber, said adjustable knob having a slanted surface with a plurality of vacuum setting indicia thereon and an arrow for indicating the degree of vacuum being applied to said collection chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A medical drainage device comprising:
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a casing, said casing including a collection chamber therein for receiving fluid to be drained from a patient, and a vacuum regulator in communication with said collection chamber for limiting the amount of vacuum applied to said collection chamber, and a vacuum indicator assembly in communication with said collection chamber, said vacuum indicator assembly including a raised base, said vacuum indicator assembly further including a means for indicating the presence of vacuum in said collection chamber, said vacuum indicator assembly including a collapsible thimble engaged over said raised base, wherein said collapsible thimble forms a pocket with said recess which masks said symbol when vacuum is absent from said collection chamber. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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17. A medical drainage device comprising:
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a casing, said casing defining a collection chamber therein for receiving fluid drained from a patient, and a vacuum regulator in communication with said collection chamber for limiting the degree of vacuum applied to said collection chamber; and
a vacuum indicator assembly in communication said collection chamber, said vacuum indicator assembly including a raised base defining an extension member forming a recess at the free end thereof, said recess including a surface having a symbol for indicating the presence of vacuum inside said collection chamber, said vacuum indicator assembly further including a means for selectively masking and unmasking said symbol for indicating the absence or presence of vacuum to said collection chamber.
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18. A vacuum indicator for a medical drainage device comprising:
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a raised base extending outwardly from the medical drainage device, said raised base defining an extension member forming a recess, said recess including a slanted surface having a symbol;
a collapsible thimble engageble with said extension member, said thimble operable between a first position when vacuum is absent in the medical drainage device, and a second position when vacuum is present in the medical drainage device,
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Specification