IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0699398
(2000-10-31)
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발명자
/ 주소 |
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출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
19 인용 특허 :
60 |
초록
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A medical valve is provided that includes a housing having a main conduit and a branch extending from the main conduit and in fluid communication with it. The bore of the branch has an elastomeric septum piston disposed therewithin and at least a portion of the elastomeric septum piston is movable b
A medical valve is provided that includes a housing having a main conduit and a branch extending from the main conduit and in fluid communication with it. The bore of the branch has an elastomeric septum piston disposed therewithin and at least a portion of the elastomeric septum piston is movable by either compression or by a longitudinal advancement along the secondary bore towards the bore of the main conduit. In one embodiment, the septum piston is cylindrical and includes a centrally positioned slit. The bore of the branch includes two opposing projecting members along a distal portion of the bore which effectively narrow the diameter of the bore. When the elastomeric member is pushed from a proximal position to a distal position, it is transversely compressed by the projecting members to open the slit and allow fluid passage. After removal of the longitudinal displacement force the septum piston retracts away from the distal portion back to the proximal portion.
대표청구항
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I claim: id="DEL-S-00001" date="20061010" 1. A medical valve for selectively providing fluid communication between a primary fluid system and a secondary fluid system, the valve being selectively activated by a male luer having a distal end and an opening therethrough, the valve comprising: a. a tu
I claim: id="DEL-S-00001" date="20061010" 1. A medical valve for selectively providing fluid communication between a primary fluid system and a secondary fluid system, the valve being selectively activated by a male luer having a distal end and an opening therethrough, the valve comprising: a. a tubular housing defining a longitudinal axis and having a proximal end and a distal end and a bore extending from said proximal end to said distal end, the bore defining a longitudinal axis and having a proximal portion defining by cylindrical walls for receiving a male luer and a distal portion, the distal portion including at least one region having a narrower transverse width than said proximal portion, b. an elastomeric septum piston defining a longitudinal axis and disposed within said bore, said septum piston having a perforation extending along the longitudinal axis of said septum piston, said perforation being closed when said septum piston is free from external compressive force, at least a portion of said septum piston being displaceable along the longitudinal axis of said bore from a first proximal position wherein said perforation is closed to a second distal position wherein said perforation is open, said septum piston being displaced by a distal end of a male luer when a male luer is inserted into said proximal portion, said septum piston in said second distal position being compressed by said region to open said perforation through said septum piston, and thereby to provide fluid communication from said opening, through said septum piston and into a primary fluid system. id="DEL-S-00001" id="DEL-S-00002" date="20061010" 2. The valve of claim 1 wherein said perforation is a slit.id="DEL-S-00002" id="DEL-S-00003" date="20061010" 3. The medical valve of claim 2 wherein said slit defines a long, transverse axis and wherein said region is defined by at least one projecting member, said member projecting in alignment toward said long transverse axis of said slit so that when at least said portion of said septum piston is longitudinally displaced along said bore and is compressed by said projecting member, said slit being shortened along said transverse axis by said compression so that said slit opens to provide a flow channel through said perforation to provide fluid communication from said open distal luer end through said septum piston.id="DEL-S-00003" id="DEL-S-00004" date="20061010" 4. A medical valve for receiving a male luer having an open distal end and for selectively providing fluid communication, said valve comprising: a. a male luer having a distal end and an opening therethrough; b. a housing having a proximal end and a distal end and a bore, the bore defining a longitudinal axis extending through said housing from said proximal end to said distal end; c. said housing including a proximal portion for receiving said male luer end and a distal portion; d. an elastomeric septum piston disposed within said bore, the septum piston being moveable along the longitudinal axis of said housing from a proximal position adjacent said proximal portion to a distal position adjacent said distal portion, the septum piston having a sealed perforation extending through said septum piston, said distal region compressing said septum piston when said septum piston is displaced by the distal end of said male luer from said proximal position into said distal position, said compression of said septum piston including an opening through said septum piston.id="DEL-S-00004" id="DEL-S-00005" date="20061010" 5. The medical valve of claim 4 wherein said septum piston is sized to seal said bore.id="DEL-S-00005" id="DEL-S-00006" date="20061010" 6. The medical valve of claim 4 wherein said septum piston is generally cylindrical.id="DEL-S-00006" id="DEL-S-00007" date="20061010" 7. The medical valve of claim 4 wherein said compressing portion induces a compressing member, said compressing member projecting into said bore. id="DEL-S-00007" id="DEL-S-00008" date="20061010" 8. The medical valve of claim 7 wherein said septum piston defines a longitudinal axis and wherein said compressing member compresses said septum piston transverse to said longitudinal axis.id="DEL-S-00008" id="DEL-S-00009" date="20061010" 9. The medical valve of claim 4 wherein said region comprises said bore having a region having variance in maximum dimension transverse to said axis, said septum piston defining a longitudinal axis and a maximum dimension transverse to said axis of said septum and wherein said maximum dimension of said septum piston is greater than the transverse dimension of said bore along said region.id="DEL-S-00009" id="DEL-S-00010" date="20061010" 10. The medical valve of claim 4 wherein said region comprises said distal portion having a reduced maximum transverse dimension relative to said proximal portion.id="DEL-S-00010" id="DEL-S-00011" date="20061010" 11. A medical valve for the transfer of fluid from a fluid receptacle in fluid communication with a connection terminal having an open male end to a tubing system in fluid communication with a patient's blood vessel, the valve comprising: a. an outer region support housing defining a longitudinal axis; b. a lumen extending within said outer region support housing, said lumen having an inlet and an outlet; c. flexible elastomeric occluding member for occluding said inlet, said flexible elastomeric occluding member having an outer face for contact with a male end of a connection terminal and further having a perforation therethrough, said perforation having an upper end adjacent said outer face, at least a portion of said flexible elastomeric occluding member being displaceable along said outer region support housing from a first position wherein said upper end of said perforation is closed to a second position wherein said upper end of said perforation is open; d. at least one portion of said outer region support housing being sized and configured to narrow said lumen, said at least one portion functioning to compress said flexible elastomeric occluding member, displacement of said flexible elastomeric occluding member inducing compression of said perforation to open said perforation and to provide fluid communication between an open male end of a connection terminal and said outlet.id="DEL-S-00011" id="DEL-S-00012" date="20061010" 12. The medical valve of claim 11 wherein said flexible elastomeric occluding member has an elongated portion that is elongated in one dimension transverse to said longitudinal axis.id="DEL-S-00012" id="DEL-S-00013" date="20061010" 13. The medical valve of claim 11 wherein said perforation is a slit.id="DEL-S-00013" id="DEL-S-00014" date="20061010" 14. The medical valve of claim 11 wherein said outer region support housing includes at least one biasing portion projection from said outer region support housing, said flexible elastomeric occluding member engaging said biasing portion upon displacement of said flexible elastomeric occluding member into said second position to bias said flexible elastomeric occluding member and to thereby open said perforation.id="DEL-S-00014" id="DEL-S-00015" date="20061010" 15. A medical valve for selectively providing the communication between a primary fluid system and a secondary fluid system, the valve comprising: a. a tubular housing defining a longitudinal axis and having a proximal end and a distal end and a bore extending from said proximal end to said distal end, the bore defining a longitudinal axis and having a proximal portion and a distal portion, the distal portion including at least one region having a narrower transverse width than said proximal portion, b. an elastomeric septum piston defining a longitudinal axis and disposed within said bore, said septum piston having a perforation extending along the longitudinal axis of said septum piston, said perforation being closed when said septum piston is free from external compressive force, at least a portion of said septum piston being displaceable along the longitudinal axis of said bore from a first proximal position wherein said perforation is closed, to a second distal position wherein said perforation is open, said septum piston in said distal position being compressed by said region to open said perforation through said septum piston, and thereby to provide fluid communication between the primary and secondary fluid systems through said septum piston.id="DEL-S-00015" id="DEL-S-00016" date="20061010" 16. The medical valve of claim 15 wherein said perforation is a slit.id="DEL-S-00016" id="DEL-S-00017" date="20061010" 17. The medical valve of claim 16 wherein said slit defines a long, transverse axis and wherein said region is defined by at least one projecting member, said at least one projecting member projecting in alignment toward said long transverse axis of said slit so that when at least a portion of said septum piston is longitudinally displaced along said bore and is compressed by said at least one projecting member, said slit is shortened when so compressed so that said slit opens to provide a flow channel through said perforation.id="DEL-S-00017" id="DEL-S-00018" date="20061010" 18. The medical valve of claim 15 wherein said septum piston is generally cylindrical.id="DEL-S-00018" id="DEL-S-00019" date="20061010" 19. The medical valve of claim 15 wherein said tubular housing has a generally circular cross-section.id="DEL-S-00019" id="DEL-S-00020" date="20061010" 20. A medical valve of claim 1 wherein when the septum piston is in said second distal position, said perforation is substantially free from penetrating structure.id="DEL-S-00020" id="DEL-S-00021" date="20061010" 21. A medical valve of claim 4 wherein when the septum piston is in said distal position, said perforation is substantially free from penetrating structure.id="DEL-S-00021" id="DEL-S-00022" date="20061010" 22. A medical valve of claim 11 wherein when the septum piston is in said second, position said perforation is substantially free from penetrating structure.id="DEL-S-00022" id="DEL-S-00023" date="20061010" 23. A medical valve of claim 15 wherein when the septum piston is in said second distal position, said perforation is substantially free from penetrating structure.id="DEL-S-00023" id="INS-S-00002" date="20061010" 24. A medical valve for receiving a male luer connector having an open distal end and for providing fluid communication, said valve comprising: a. a housing having a proximal end and a distal end and a bore, the bore defining a longitudinal axis extending through said housing from said proximal end toward said distal end, said housing including a cylindrical proximal portion, said proximal portion being sized for receiving said male luer distal end and to engage threads of said male luer connector, said housing further including a distal portion; b. at least one rigid member mounted within said bore; c. an elastomeric septum piston disposed within said bore, said septum piston having at least one longitudinal elastomeric wall, a transverse elastomeric face and a longitudinal slit defined therethrough, the septum piston being moveable distally along the longitudinal axis of said housing from a proximal position adjacent said proximal portion to a distal position, a longitudinal space being defined within said piston at least when said piston is in said distal position, said rigid member being mounted within said bore so that said distal movement of said piston along said longitudinal axis induces a transverse pressing force between said at least one rigid member and said elastomeric piston, said force being transmitted in a direction transverse to said longitudinal axis to deflect said longitudinal elastomeric wall and displace open said longitudinal slit without said rigid member contacting said slit to thereby open fluid communication between said space within said piston and said male luer connector, said space being elastically enlarged by said rigid member as said piston is moved distally, said fluid entering said space upon said distal movement; e. said piston being further movable proximally from said distal position toward said proximal position, said longitudinal elastomeric wall rebounding to close said slit to thereby close fluid communication between said space and said male luer connector and to elastically diminish said space to express fluid from within said space upon said movement proximally such that said fluid expressed from within said space is expressed, relative said piston, in a direction opposite the movement of said piston.id="INS-S-00002" id="INS-S-00003" date="20061010" 25. The medical valve of claim 24 wherein said space extends along said longitudinal axis within said piston when said piston is in said distal position.id="INS-S-00003" id="INS-S-00004" date="20061010" 26. The medical valve of claim 24 wherein a plurality of rigid members are provided, said rigid members being positioned within said bore such that said slit is pushed into an open configuration by a plurality of different transverse forces transmitted through said different regions of said elastomeric piston as said piston is moved from said proximal position toward said distal position.id="INS-S-00004" id="INS-S-00005" date="20061010" 27. The medical valve of claim 26, wherein at least a proximal portion of said piston comprises an elastomeric cylinder having a longitudinal axis co- axial to said longitudinal axis of said bore, said elastomeric cylinder being slidable along said proximal portion of said housing.id="INS-S-00005" id="INS-S-00006" date="20061010" 28. The medical valve of claim 27, wherein said elastomeric wall includes substantially opposing portions, said rigid members being mounted such that said pressing forces are applied to said opposing portions so that said opposing portions move transversely in opposite directions to thereby spread said slit into an open position.id="INS-S-00006" id="INS-S-00007" date="20061010" 29. The medical valve of claim 28, wherein said rigid members are mounted within said valve so that said pressing forces widen said elastomeric face along an axis transverse to said longitudinal axis, to displace said slit into an open configuration when said elastomeric piston is moved toward said distal position.id="INS-S-00007" id="INS-S-00008" date="20061010" 30. The medical valve of claim 27, wherein said elastomeric face defines a central portion and said slit defines a long transverse axis along said central portion of said elastomeric face, said rigid members being mounted within said housing such that said elastomeric face is widened along an axis transverse to said long transverse axis of said slit when said male luer displaces said elastomeric piston into said distal position, so that said slit is spread open by said transverse displacement of said face so that fluid can flow through said slit without contact between said rigid members and said slit.id="INS-S-00008" id="INS-S-00009" date="20061010" 31. The medical valve of claim 27, wherein said rigid members are mounted radially adjacent said elastomeric cylinder.id="INS-S-00009" id="INS-S-00010" date="20061010" 32. The medical valve of claim 31, wherein said rigid members are mounted radially outside said elastomeric cylinder.id="INS-S-00010" id="INS-S-00011" date="20061010" 33. The medical valve of claim 27, wherein said elastomeric wall comprises an outer peripheral wall of said elastomeric cylinder.id="INS-S-00011" id="INS-S-00012" date="20061010" 34. The medical valve of claim 24 wherein said space is bounded by an interior surface of said piston when said piston is in said distal position. id="INS-S-00012"
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