초록 ▼

A medical valve connector comprising a tubular body having an inlet fitting of the male luer or luer-lock type with an inner tubular element displaceable axially from a retracted position for closing a passage of flow towards an outlet fitting to an advanced position for opening said passage of flow

A medical valve connector comprising a tubular body having an inlet fitting of the male luer or luer-lock type with an inner tubular element displaceable axially from a retracted position for closing a passage of flow towards an outlet fitting to an advanced position for opening said passage of flow. A tubular body made of elastic material, set between the inlet and outlet fittings, tends to keep the inner tubular element in the retracted position. Also the outlet fitting can rotate and axially translate between a retracted position and an advanced position.

대표청구항 ▼

What is claimed is: 1. A medical valve connector comprising: a tubular body having an inlet fitting of the male luer or luer-lock type which can be coupled by screwing with a complementary female luer or luer-lock fitting; an outlet fitting coaxial to said inlet fitting, said outlet fitting at a di

What is claimed is: 1. A medical valve connector comprising: a tubular body having an inlet fitting of the male luer or luer-lock type which can be coupled by screwing with a complementary female luer or luer-lock fitting; an outlet fitting coaxial to said inlet fitting, said outlet fitting at a distal end and said inlet fitting at a proximal end of said body; and means defining a passage of flow between said inlet and outlet fittings, said male inlet fitting comprising an outer internally-threaded tubular element and an inner tubular element, said inlet fitting bounded at a distal end by a collar separating said inlet fitting from an internal chamber, said collar having an opening allowing said inner tubular element to extend from said inlet fitting into said chamber; said inner tubular element having an outer end and an inner end and being axially open at both said inner and said outer ends, said inner tubular element being axially displaceable but not rotationally displaceable with respect to said outer tubular element and to said body, following coupling with said complementary female fitting, from a retracted closing position to an advanced position for opening said passage of flow; said inner tubular element comprising a flange in said internal chamber, said flange extending radially from said opening to an inner surface of said tubular body and abutting said collar in said retracted position, said inner tubular element having a diameter smaller than said flange distal of said flange and proximal of said flange; sliding-seal means between said inner tubular element and said body, and elastic means tending to keep said inner tubular element in said retracted position, wherein said means defining the passage of flow, said sliding-seal means and said elastic means are integrated in a generally tubular unitary body of elastic material set axially in a sealed way between said inlet and outlet fittings and formed with a transverse diaphragm having a pre-cut which is opened elastically by said internal end of said inner tubular element when said inner tubular element is in said advanced opening position. 2. The connector according to claim 1, wherein said inner tubular element of said male inlet fitting has a closed internal end and has in the proximity thereof at least one radial passage, and said body of elastic material defines a chamber open towards said outlet fitting and within which said at least one radial passage sets itself in said advanced opening position. 3. The connector according to claim 1, wherein said seal means comprise at least one integral internal annular projection of said body of elastic material. 4. The connector according to claim 1, further comprising means of axial arrest between said outer tubular element of said inlet fitting and said body in said retracted closing position. 5. The connector according to claim 1, further comprising means of axial arrest between said inner tubular element of said inlet fitting and said body in said advanced opening position. 6. The connector according to claim 1, wherein said outlet fitting consists of a female luer-lock fitting that can be engaged by screwing with a complementary male luer-lock fitting. 7. The connector according to claim 6, wherein said female luer-lock outlet fining is connected to said body in a rotary and axially translatable way from a retracted position to an advanced position against the action of said body of elastic material and wherein first and second one-directional detent means are provided, of which the first prevent rotation between said outlet fining and said body in a first direction of rotation corresponding to screwing of said complementary male luer-lock fining with said outlet fitting when the latter is set in said retracted position, and the second prevent rotation between said outlet fitting and said body in a second direction of rotation corresponding to unscrewing of said complementary male luer-lock fitting from said outlet fining when said outlet fining is translated into said advanced position. 8. The connector according to claim 7, wherein said first one-directional detent means include a ring of sprung pawls carried by said outlet fining in a first axial position, and a corresponding ring of saw teeth carried by said body in a first corresponding axial position. 9. The connector according to claim 8, wherein said second one-directional detent means include a ring of saw teeth carried by said outlet fitting in a second axial position staggered with respect to said first axial position, and a corresponding ring of detent teeth carried by said body in a second corresponding axial position. 10. The connector according to claim 7, wherein said inner tubular element of said inlet fitting prevents, in said advanced position, axial translation of said outlet fitting from said retracted position to said advanced position. 11. The connector according to claim 1, wherein said outlet fitting comprises a tubular element of direct connection to a pipe. 12. The connector according to claim 1, wherein said outlet fitting is connected to the body in a rotary way. 13. The connector according to claim 1, wherein said inner tubular element of said inlet fitting is provided with manoeuvring means projecting on the outside of said body for controlling manually axial displacement of said inner tubular element from said retracted position to said advanced position. 14. The connector according to claim 1, wherein said inner tubular element of said inlet fitting has an open internal end and said body of elastic material is formed with a central axial through slit; said internal end of said inner tubular element of said inlet fitting in said retracted position being wedged within said body of elastic material, keeping said central slit partially open, and in said advanced position still remaining partially engaged within said body of elastic material, opening said central slit completely. 15. The connector according to claim 1 wherein said inner tubular element comprises a projecting portion proximal of said flange, said projecting portion having a diameter larger than said opening, said projecting portion axially arresting said inner tubular element in said advanced opening position by contacting said collar and inhibiting distal movement of said inner tubular element. 16. The connector according to claim 1 wherein said flange abuts said sliding-seal means in said retracted position and said advanced position. 17. A medical valve connector comprising: a tubular body having an inlet fitting of the male luer or luer-lock type couplable by screwing with a complementary female luer or luer-lock fitting; an outlet fitting coaxial to said inlet fitting, said outlet fitting at a distal end and said inlet fitting at a proximal end of said body; and said male inlet fitting comprising an outer internally-threaded tubular element and an inner tubular element, said inlet fitting bounded at a distal end by a collar separating said inlet fitting from an internal chamber, said collar having an opening allowing said inner tubular element to extend from said inlet fitting into said chamber, said chamber allowing flow between said inlet and outlet fittings; said inner tubular element having a distal end and a proximal end and being axially open at both said distal end and said proximal end, said inner tubular element being axially displaceable but not rotationally displaceable with respect to said outer tubular element and to said body, following coupling with said complementary female fitting, from a retracted closing position to an advanced position for opening a passage of flow between said distal end and said proximal end of said inner tubular element; said inner tubular element comprising a flange in said internal chamber, said flange extending radially from said opening to an inner surface of said tubular body and abutting said collar in said retracted position, said inner tubular element having a diameter smaller than said flange distal of said flange and proximal of said flange; said inner tubular element comprising a projecting portion proximal of said flange, said projecting portion having a diameter larger than said opening, said projecting portion axially arresting said inner tubular element in said advanced opening position by contacting said collar and inhibiting distal movement of said inner tubular element; sliding-seal means between said inner tubular element and said body, and elastic means tending to keep said inner tubular element in said retracted position, wherein said sliding-seal means and said elastic means are integrated in a generally tubular unitary body of elastic material set axially in a sealed way between said inlet and outlet fittings and formed with a transverse diaphragm having a pre-cut which is opened elastically by said distal end of said inner tubular element when said inner tubular element is in said advanced opening position. 18. The connector according to claim 17 wherein said flange abuts said sliding-seal means in said retracted position and said advanced position.