IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0116390
(1987-11-03)
|
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발명자
/ 주소 |
- Blake
- III Joseph W. (88 Main St. New Canaan CT 06840)
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| 인용정보 |
피인용 횟수 :
30 인용 특허 :
0 |
초록
▼
An article useful in the suction-assisted removal of fluids, including gases, such as air, and liquids, such as blood, from a body cavity which will prevent flow of gases therethrough into said cavity without the intervention of any liquid seals, in the event the pressure within said cavity becomes
An article useful in the suction-assisted removal of fluids, including gases, such as air, and liquids, such as blood, from a body cavity which will prevent flow of gases therethrough into said cavity without the intervention of any liquid seals, in the event the pressure within said cavity becomes negative relative to the pressure at the discharge end of said article comprising a cap assembly, for fluid connection to said cavity and an accumulation chamber, for applying a controlled suction to said cavity, said assembly comprising a horizontal wall comprising at its periphery and normal thereto an annular wall for attachment to a liquid collection container surrounding said accumulation chamber; inlet means in fluid connection with said cavity, and, as desired, a liquid accumulation chamber or the atmosphere, through which said fluids may pass when the pressure within the cavity is greater than at the discharge end of said means; first one-way valve means associated with the discharge end of said inlet means for passing of said fluids from said cavity when the pressure in said cavity is positive relative to the pressure at the discharge end of said valve and which is closed when said cavity pressure is negative relative to the pressure at the discharge end of the valve to prevent flow of gases through said assembly into said cavity and negative pressure indicating means for measuring negative pressure in said cavity when said one-way valve means operates to seal its associated inlet means.
대표청구항
▼
An article useful in the suction-assisted removal of fluids, including gases, such as air, and liquids, such as blood, from a body cavity which will prevent backflow of gases into said cavity, without the intervention of any liquid seals, in the event the pressure within said cavity becomes negative
An article useful in the suction-assisted removal of fluids, including gases, such as air, and liquids, such as blood, from a body cavity which will prevent backflow of gases into said cavity, without the intervention of any liquid seals, in the event the pressure within said cavity becomes negative relative to the pressure at the discharge end of conduit means for passing said fluids from the body cavity to an accumulation chamber surrounded by a container for the collection of said liquids, wherein said article consists of a removable cap assembly, for said container, consisting of A. a hollow chamber within a housing comprising: i) a first horizontal wall, consisting of a flat member containing a first port therethrough, at one end; ii) a large opening at the end opposite said first horizontal wall; and iii) an annular wall descending from the periphery of said first horizontal wall to said large opening; B. conduit means, for passing said fluids through the cap into the hollow chamber, said conduit means consisting of i) an inlet stem rising from the first port; ii) a vertical elongated tubular element, containing a port in its side wall, attached at one end to said said inlet stem at said first port in the first horizontal wall and terminated at its other end by a discharge stem; and iii) negative pressure transmission means to transmit changes in negative pressure to negative pressure indicating means; C. one-way valve means, associated with the discharge stem of said conduit means, which will permit the flow of fluids therethrough when the pressure at the inlet stem is greater than that at the discharge stem of the valve and will close to prevent flow of fluids therethrough when the pressure at the inlet stem is less than that at said discharge end; and D. negative pressure detecting and indicating means, in negative pressure-indicating connection with said conduit means, through said negative pressure transmission means, for indicating the negative pressure in the body cavity, when said one-way valve means is closed consisting of: i) negative pressure indicating means rising from the outer surface of the first horizontal wall; and ii) means for connecting said negative pressure indicating means to the negative pressure transmission means of the conduit means.
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