Chest drainage apparatus with ambient air sealing

Claim 2

Apparatus for drainage of a body cavity, comprising: a housing body having portions defining an inlet chamber and a discharge chamber; said housing body portion defining said inlet chamber having mounting means for supporting a catheter in sealed arrangement therewith and in fluid communication with said inlet chamber; a catheter supported by said mounting means and extending outwardly from said inlet chamber, said catheter being in fluid communication with said inlet chamber; an inlet port in said housing body portion defining said inlet chamber having inlet port sealing means which is adapted to reversibly receive a trocar and enable at least a portion of a trocar to pass through said inlet chamber and said catheter, and said inlet port sealing means for sealing said chamber against the ambient atmosphere in the absence of a trocar, and upon insertion and withdrawal of a trocar from at least said catheter to seal said inlet chamber from the ambient atmosphere; a one-way valve mounted in said housing body and coupling said inlet chamber with said discharge chamber so as to prevent the passage of fluid between said chambers except through said valve, said valve having its inlet end in communication with said inlet chamber, said valve having its outlet end in fluid communication with said discharge chamber, said valve being adapted to permit passage of drainage material passing therethrough from its inlet end to its outlet end.

Claim 3

The apparatus as defined in claim 1 wherein the housing body portion defining said inlet chamber comprises a substantially solid body having a first bore extending therethrough and in fluid communication with said catheter and said inlet port and adapted to reversibly receive a trocar for passage therethrough, said substantially solid body having means for mounting the one-way valve thereto within said housing body, and said substantially solid body having a second bore therein in fluid communication with said first bore and in fluid communication with the inlet end of said one-way valve.

Claim 4

The apparatus as defined in claim 2 wherein said mounting means for supporting the catheter in said housing body portion defining said inlet chamber comprises a cannula sealingly affixed in a first end portion of the substantially solid body defining the first bore and supporting the catheter outwardly extending therefrom, the catheter being secured to said cannula.

Claim 5

The apparatus as defined in claim 1 wherein the housing body portion defining said inlet chamber comprises an open-faced enclosure having back, side, top and bottom walls, and a separable face wall adapted to be secured to said enclosure in fluid-sealing relation thereto, said face wall including said mounting means and said catheter supported thereby, said back wall having said inlet port, and said bottom wall defining an aperture therein adapted for fluid communication with said one-way valve.

Claim 6

The apparatus defined in claim 4 wherein said back, side, top and bottom walls are integral with each other.

Claim 7

The apparatus as defined in claim 1 wherein said inlet chamber and said discharge chamber are separated by a substantially flexible bellows-shaped member in which the inlet end of said one-way valve is supported in sealed relation communicating said inlet chamber with said discharge chamber.

Claim 8

The apparatus as defined in claim 1 wherein said sealing means includes displaceable sealing material positioned within said inlet chamber for sealing said chamber against the ambient atmosphere in the absence of and upon insertion and withdrawal of a trocar with respect to said inlet chamber and said inlet port.

Claim 9

The apparatus as defined in claim 1 wherein said discharge chamber includes hydrophobic filter means in communication therewith for filtering gaseous fluids from said discharge chamber.

Claim 10

The apparatus as defined in claim 8, wherein said hydrophobic filter means comprises an elongated filter member mounted along one wall of the housing body portion defining said discharge chamber.

Claim 11

The apparatus as defined in claim 9, wherein said wall of the housing body portion defining said discharge chamber is formed with at least one port, said elongated filter member is positioned exteriorly of said wall and said port, and said wall includes a cover member adapted to support said elongated filter member between said cover member and said wall.

Claim 12

The apparatus as defined in claim 10, wherein said cover member includes at least one port open to the ambient atmosphere, whereby said discharge chamber is in communication with the ambient atmosphere only through said filter.

Claim 13

The apparatus as defined in claim 10, wherein said cover member includes a port connectable to suction means whereby suction can be applied to the discharge chamber of said apparatus through said filter.

Claim 14

The apparatus as defined in claim 9 wherein said housing body portion defining said discharge chamber includes a port connectable to suction means for applying suction to the discharge chamber of said apparatus to assist in drainage.

Claim 15

The apparatus as defined in claim 9 wherein said housing body portion defining said discharge chamber includes a port connectable to drainage collection means for receiving drainage from said discharge chamber.

Claim 16

The apparatus as defined in claim 14 including drainage collection means comprising a plurality of collection containers, distributing means for selectively distributing drainage received from said discharge chamber to each of said plurality of collection containers, and a conduit leading from said port to said distributing means for conducting drainage from said port to said distributing means.

Claim 17

The apparatus as defined in claim 1 wherein said catheter comprises a spring core covered by a elastomeric coating.

Claim 18

The apparatus as defined in claim 16 wherein the said catheter includes at least one aperture in the coating thereof adjacent its tip end, through which materials from the body cavity are adapted to pass to and through the core thereof into the catheter upon the catheter being inserted into the body cavity to be drained.

Claim 19

The apparatus as defined in claim 1, wherein said oneway valve is a one-way elongated valve being formed of a sleeve of substantially resilient, fluid-impervious material and having its inlet end held open, said valve being normally held closed along a substantial length of the sleeve by the substantial resilience of the material of said sleeve and adapted to progressively open and close to permit the irreversible passage of drainage material passing therethrough from its inlet end to its outlet end.

Claim 20

The apparatus as defined in claim 18, wherein said inlet chamber and said discharge chamber are separated by a substantially flexible bellows-shaped member in which the inlet end of the sleeve of said one-way elongated valve is supported in sealed relation communicating said inlet chamber with said discharge chamber, and including collar means positioned within said bellows-shaped member for receiving the inlet end of the sleeve of said one-way elongated valve.

Claim 21

The apparatus as defined in claim 19 wherein said collar means comprises a collar having a shoulder adapted to receive the inlet end of the sleeve of said one-way valve with the inlet end of said sleeve through said collar the inlet end of said sleeve being turned about said shoulder, and sealed thereagainst by a portion of the interior surface of the bellows-shaped member pressing thereagainst and preventing the passage of fluid between said inlet end of the sleeve of said valve and said collar.

Claim 22

The apparatus as defined in claim 20 wherein said collar includes an exterior portion having ridges and recesses conforming to the interior surface of said bellows-shaped member for maintaining a sealed relation therebetween.

Claim 23

The apparatus as defined in claim 18 including a second one-way valve mounted in said housing body between and in fluid communication with said inlet chamber and the inlet end of the sleeve of said first one-way elongated valve so as to prevent the passage of fluid between said inlet chamber and said first one-way elongated valve except through said second valve.

Claim 24

The apparatus as defined in claim 22 wherein said second one-way valve is formed of a sleeve of substantially resilient, fluid-impervious material and is positioned within and axially aligned with the held open inlet of the sleeve of said first one-way elongated valve, and said second one-way valve having its inlet end held open and in communication with said inlet chamber.

Claim 25

The apparatus as defined in claim 18, wherein said sealing means includes displaceable sealing material positioned within said inlet chamber for sealing said chamber against the ambient atmosphere in the absence of and upon insertion and withdrawal of a trocar with respect to said inlet chamber and said inlet port.

Claim 26

The apparatus as defined in claim 18, wherein said discharge chamber includes hydrophobic filter means in communication therewith for filtering gaseous fluids from said discharge chamber.

Claim 27

The apparatus as defined in claim 25, wherein said hydrophobic filter means comprises an elongated filter member mounted along one wall of the housing body portion defining said discharge chamber, said wall being formed with at least one port and including a cover member adapted to support said elongated filter member positioned exteriorly of said wall and said port, said wall including a cover member adapted to support said elongated filter member between said cover member and said wall.

Claim 28

The apparatus as defined in claim 26, wherein said cover member includes at least one port open to the ambient atmosphere, whereby said discharge chamber is in communication with the ambient atmosphere only through said filter.

Claim 29

The apparatus as defined in claim 25, wherein said housing body portion defining said discharge chamber includes a port connectable to suction means for applying suction to the discharge chamber of said apparatus to assist in drainage.

Claim 30

The apparatus as defined in claim 25, wherein said housing body portion defining said discharge chamber includes a port connectable to drainage collection means for receiving discharge from said discharge chamber.

Claim 31

The apparatus as defined in claim 29 including drainage collection means comprising a plurality of collection containers, distributing means for selectively distributing drainage received from said discharge chamber to each of said plurality of collection containers, and a conduit leading from said port to said distributing means for conducting drainage from said port to said distributing means.

Claim 32

A sterile kit for the drainage of a body cavity comprising: a sealed package the interior of which is sterile; apparatus for drainage of a body cavity positioned within the interior of said package, comprising: a housing body having portions defining an inlet chamber and a discharge chamber; said housing body portion defining said inlet chamber having mounting means for supporting a catheter in sealed arrangement therewith and in fluid communication with said inlet chamber; a catheter supported by said mounting means and extending outwardly from said inlet chamber, said catheter being in fluid communication with said inlet chamber; an inlet port in said housing body portion defining said inlet chamber having inlet port sealing means which is adapted to reversibly receive a trocar and enable at least a portion of the trocar to pass through said inlet chamber and said catheter, and said inlet port sealing means for sealing said chamber against the ambient atmosphere in the absence of and upon insertion and withdrawal of a trocar from at least said catheter a one-way valve mounted in said housing body and coupling said inlet chamber with said discharge chamber so as to prevent the passage of fluid between said chambers except through said valve, said valve having its inlet end in communication with said inlet chamber, said valve having its outlet end in fluid communication with said discharge chamber, said valve being adapted to permit the irreversible passage of drainage material passing therethrough from its inlet end to its outlet end; and a trocar positioned within the interior of said package having a portion adapted upon utilization of the apparatus to be inserted into said inlet chamber through said inlet port and through said catheter into a body cavity to be drained, and to be withdrawn from said body cavity, said catheter and said inlet chamber, while leaving the catheter in communication with said body cavity, while the portion in the inlet chamber and inlet port is sealed against the ambient atmosphere by a said sealing means.

Claim 33

A sterile kit for the drainage of a body cavity comprising: a sealed package the interior of which is sterile; apparatus for drainage of a body cavity positioned within the interior of said package, comprising: a housing body having portions defining an inlet chamber and a discharge chamber; said housing body portion defining said inlet chamber having mounting means for supporting a catheter in sealed arrangement therewith and in fluid communication with said inlet chamber; a catheter supported by said mounting means and extending outwardly from said inlet chamber, said catheter being in fluid communication with said inlet chamber; an inlet port in said housing body portion defining said inlet chamber having inlet port sealing means which is adapted to reversibly receive a trocar and enable at least a portion of the trocar to pass through said inlet chamber and said catheter, and said inlet port sealing means for sealing said chamber against the ambient atmosphere in the absence of and upon insertion and withdrawal of a trocar from at least said catheter a one-way valve mounted in said housing body and coupling said inlet chamber with said discharge chamber so as to prevent the passage of fluid between said chambers except through said valve, said valve having its inlet end in communication with said inlet chamber, said valve having its outlet end in fluid communication with said discharge chamber, said valve being adapted to permit the irreversible passage of drainage material passing therethrough from its inlet end to its outlet end; and a trocar positioned within the interior of said package having a portion adapted upon utilization of the apparatus to be inserted into said inlet chamber through said inlet port and through said catheter into a body cavity to be drained, and to be withdrawn from said body cavity, said catheter and said inlet chamber, while leaving the catheter in communication with said body cavity, while the portion in the inlet chamber and inlet port is sealed against the ambient atmosphere by a said sealing means.

Claim 34

The sterile kit as defined in claim 31, wherein said one-way valve mounted in said housing body of said apparatus is a one-way elongated valve being formed of a sleeve of substantially resilient, fluid impervious material, having its inlet and held open, said valve being normally held closed along a substantial length of the sleeve by the substantial resilience of the material of said sleeve and adapted to progressively open and close to permit the irreversable passage of draining material passing therethrough.

Claim 35

The sterile kit as defined in claim 32, wherein the apparatus for drainage of a body cavity includes a second one-way valve mounted in said housing body between and in fluid communication with said inlet chamber and the inlet end of the sleeve of said first one-way elongated valve so as to prevent the passage of fluid between said inlet chamber and said first one-way elongated valve except through said second valve.