Fluid control element for biopsy apparatus
First Claim
Patent Images
1. A fluid control element for a biopsy device, comprising:
- a flexible member connected to the biopsy device and adapted for selective deformation when an element of the biopsy device is inserted therein;
wherein said member includes an outer ring portion, a closed central portion and at least one opening disposed between said outer ring portion and said central portion that is normally open when said member is in an uncompressed position, said opening being substantially closed off when said member is in a compressed position.
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Accused Products
Abstract
A fluid control element having a flexible member that is adapted for selective deformation when an element inserted therein. The flexible member includes at least one incision or opening that defines at least one cusp that selectively opens when the element is inserted therein. The incision or opening is biased into a normally and substantially closed position such that fluids are substantially prevented from flowing through the fluid control element.
220 Citations
33 Claims
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1. A fluid control element for a biopsy device, comprising:
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a flexible member connected to the biopsy device and adapted for selective deformation when an element of the biopsy device is inserted therein; wherein said member includes an outer ring portion, a closed central portion and at least one opening disposed between said outer ring portion and said central portion that is normally open when said member is in an uncompressed position, said opening being substantially closed off when said member is in a compressed position. - View Dependent Claims (2, 3)
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4. A biopsy device comprising:
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a housing having a distal end and a proximal end; an outer cannula disposed in said housing, wherein said outer cannula defines an outer lumen; an inner cannula slidably disposed within said outer lumen and defining an inner lumen, wherein the inner cannula further comprises a cutting edge disposed on an open distal end thereof; and at least one fluid control member disposed within said housing such that said at least one fluid control member is positioned within said inner cannula so as to be spaced away from a proximal end of said inner cannula. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A biopsy device comprising:
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a housing having a distal end and a proximal end; an outer cannula disposed in the housing, an inner cannula slidably disposed within the outer cannula and defining an inner lumen therein; at least one fluid control member disposed within said housing; and a collection trap connected to the proximal end of the housing, wherein the at least one fluid control member is disposed within a pilot port formed in an end of the collection trap. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A biopsy device comprising:
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a housing having a distal end and a proximal end; an outer cannula disposed in the housing, an inner cannula slidably disposed within the outer cannula and defining an inner lumen therein; at least one fluid control member disposed within said housing; and a collection trap connected to the proximal end of the housing, wherein the collection trap includes a selectively removable cap that secures to an end of the collection trap, wherein the at least one fluid control member is positioned between the cap and the collection trap. - View Dependent Claims (22)
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23. A biopsy device comprising:
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a housing having a distal end and a proximal end; an outer cannula disposed in the housing, an inner cannula slidably disposed within the outer cannula and defining an inner lumen therein; and at least one fluid control member disposed within said housing; wherein the housing includes an open proximal end to which a collection trap is selectively secured, wherein said at least one fluid control member is positioned within said open proximal end of said housing, said fluid control member being normally closed when said collection trap is not secured to said proximal end of said housing, and where said fluid control member is selectively deformable so as to be open and permit fluid flow therethrough when said collection trap is secured to said proximal end of said housing. - View Dependent Claims (24, 25, 26)
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27. A biopsy device comprising:
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a housing having a distal end and a proximal end; an outer cannula disposed in the housing, an inner cannula slidably disposed within the outer cannula and defining an inner lumen therein; and at least one fluid control member disposed within said housing; wherein said housing further includes a selectively movable aspiration tube having an open proximal end and wherein said at least one fluid control member is positioned over said proximal end of said aspiration tube, said at least one fluid control member being normally closed so as to substantially limit fluid from passing therethrough. - View Dependent Claims (28, 29, 30, 31, 32, 33)
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Specification