초록 ▼

An apparatus for draining fluids, for example, from a chest or pleural cavity, includes a collection chamber for collecting fluids through an inlet port for entry of the fluids. Also included is a dry or waterless suction control chamber in fluid communication with the collection chamber for regulat

An apparatus for draining fluids, for example, from a chest or pleural cavity, includes a collection chamber for collecting fluids through an inlet port for entry of the fluids. Also included is a dry or waterless suction control chamber in fluid communication with the collection chamber for regulating the degree of vacuum imposed in the collection chamber. If desired, a seal chamber can also be provided between the dry suction control chamber and the collection chamber so as to prevent any ambient or atmospheric air from passing into the collection chamber. The suction control chamber has a first inlet which is coupled to a suction source and a second inlet communicates with the ambient. A waterless regulator is provided for regulating the degree of suction imposed in the collection chamber at a plurality of predetermined preset levels of suction. This regulator is positioned between the suction inlet and the ambient inlet. The suction control chamber also has at least a visual indicator disposed between the regulator and the suction inlet for providing immediate confirmation of proper operation of suction in the collection chamber. The present invention also includes a device for retaining tubing under compression so as to provide self-sealing capability of the tubing during sampling or injection procedures.

대표청구항 ▼

Apparatus for draining bodily fluids comprising: a. collection chamber for collecting fluids from a body cavity, said collection chamber including an inlet for fluid communication with the body cavity; b. seal chamber for preventing passage of atmospheric air into the body cavity; and c. suction con

Apparatus for draining bodily fluids comprising: a. collection chamber for collecting fluids from a body cavity, said collection chamber including an inlet for fluid communication with the body cavity; b. seal chamber for preventing passage of atmospheric air into the body cavity; and c. suction control chamber for meterlessly regulating the degree of vacuum imposed in the collection chamber and including: 1. first compartment communicating at one end with said seal chamber and having an inlet for coupling to a suction source; 2. second compartment communicating at one end with the other end of said first compartment and at its other end having an inlet for communicating with the ambient; 3. discrete dry meterless means for regulating the degree of suction imposed in said collection chamber at a plurality of predetermined preset levels of suction such that said regulation is substantially insensitive to pressure variations due to patient air leaks or suction source levels, said regulating means positioned within said second compartment, said dry regulating means dimensioned and configured so as to provide suction control at said predetermined preset level of suction independently of any liquid within said suction control chamber; and 4. indicator means positioned within said first compartment for providing immediate confirmation of proper operation of suction of the body cavity.