The present invention relates to a container for a disposable needle or cannula, intended to facilitate needle or cannula placement for the infusion of a liquid drug under a patient's skin, the container including a cylindrical housing (1; 101) in which there are defined a cap (1a; 101a) and a sleev
The present invention relates to a container for a disposable needle or cannula, intended to facilitate needle or cannula placement for the infusion of a liquid drug under a patient's skin, the container including a cylindrical housing (1; 101) in which there are defined a cap (1a; 101a) and a sleeve (1b; 101b) provided with a resting base (1c; 101c), the cap (1a; 101a) being axially slidable relative to the sleeve (1b; 101b) when a sufficient pressure is exerted on the cap (1a; 101a); a needle (21; 121) or cannula, which is located inside the housing so as to be directed towards the resting base (1c; 101c) for the infusion of the drug; a retaining member (9; 109), which is located within the housing (1; 101) between said cap (1a; 101a) and the sleeve (1b; 101b) and to which the needle (21; 121) or cannula is secured; the container being equipped with a releasing member for releasing the needle (21; 121) or cannula when the cap (1a; 101a) is made to slide on the sleeve (1b; 101b).
대표청구항▼
What is claimed is: 1. A container for facilitating placement of a medical device through a patient's skin, the container comprising: a cylindrical housing in which there are defined a cap and a sleeve, said sleeve including a resting base having a planar surface configured for placement against a
What is claimed is: 1. A container for facilitating placement of a medical device through a patient's skin, the container comprising: a cylindrical housing in which there are defined a cap and a sleeve, said sleeve including a resting base having a planar surface configured for placement against a patient's skin, said cap surrounding at least a portion of said sleeve and being axially slidable relative to said sleeve to substantially encase said sleeve when a sufficient pressure is exerted on said cap; a retaining member located within said housing, said retaining member having a needle secured thereto; a releasing member for releasing said needle from said retaining member when said cap is made to slide on said sleeve, thereby allowing the placement of said needle under the patient's skin and the subsequent removal of said container; wherein the container is disposable and upon exertion of said pressure on said cap the force resulting from said pressure is transferred to said needle so that said needle is placed through the patient's skin by means of said pressure exerted on said cap. 2. A container as claimed in claim 1, wherein said base has, on an outer face, a gauze adhering to said base, said gauze comprising an adhesive having a removable protecting film thereon. 3. A container as claimed in claim 2, wherein said gauze is joined to said base in circular portions. 4. A container for facilitating placement of a medical device through a patient's skin, the container comprising: a cylindrical housing in which there are defined a cap and a sleeve, said sleeve including a resting base having a planar surface configured for placement against a patient's skin, said cap being axially slidable relative to said sleeve when a sufficient pressure is exerted on said cap; a retaining member located within said housing, said retaining member having a needle secured thereto; a releasing member for releasing said needle from said retaining member when said cap is made to slide on said sleeve, thereby allowing the placement of said needle under the patient's skin and the subsequent removal of said container; wherein the container is disposable and upon exertion of said pressure on said cap the force resulting from said pressure is transferred to said needle so that said needle is placed through the patient's skin by means of said pressure exerted on said cap and wherein said sleeve has an axial slit through which a hose extends radially and along which said hose is slidable when said cap is made to slide on said sleeve. 5. A container for facilitating placement of a medical device through a patient's skin, the container comprising: a cylindrical housing in which there are defined a cap and a sleeve, said sleeve including a resting base having a planar surface configured for placement against a patient's skin, said base having, on an outer face, a gauze adhering to said base, said gauze comprising an adhesive having a removable protecting film thereon, said cap being axially slidable relative to said sleeve when a sufficient pressure is exerted on said cap; a retaining member located within said housing, said retaining member having a needle secured thereto; a releasing member for releasing said needle from said retaining member when said cap is made to slide on said sleeve, thereby allowing the placement of said needle under the patient's skin and the subsequent removal of said container; wherein the container is disposable and upon exertion of said pressure on said cap the force resulting from said pressure is transferred to said needle so that said needle is placed through the patient's skin by means of said pressure exerted on said cap and wherein said needle is an L-shaped needle comprising a drug inlet branch transversally arranged within said housing and an axially arranged drug outlet branch, said inlet branch being connected to a hose radially extending from said container. 6. A container as claimed in claim 5, wherein said retaining member includes a securing portion directed toward said cap and a retaining portion directed toward said sleeve, said securing portion being firmly held inside an axial cylindrical hub extending within the cap and integral therewith, and said retaining portion axially extending within the housing and ending, at its end remote from said securing portion, with a plate transversally arranged relative to the axis of the retaining member, said plate being engaged against said sleeve so as to allow sliding of said cap on said sleeve when said plate is released from said sleeve. 7. A container as claimed in claim 6, wherein said plate has a substantially circular shape and comprises a pair of diametrically opposite radial grooves for the passage of corresponding axial projections formed within the sleeve and arranged to guide the axial sliding of the plate and the retaining member, when said cap is depressed. 8. A container as claimed in claim 7, wherein said plate comprises a groove, diametrically crossing the plane of the plate and retaining the inlet branch of the L-shaped needle for the infusion of the drug, said groove being arranged perpendicularly to said radial grooves. 9. A container as claimed in claim 8, wherein said groove retaining the needle axially extends inside the plate and the retaining member and widens at its end, into a radial hollow, thereby to define two diametrically opposite portions of said plate, which portions are deformable to release the needle retained in said groove. 10. A container as claimed in claim 9, wherein a pair of radially extending protrusions are formed on the internal wall of said sleeve to keep the plate in engagement with said sleeve, and wherein the internal wall of said sleeve comprises an axial groove through which the outlet branch of the L-shaped needle passes. 11. A container as claimed in claim 10, wherein said releasing member for releasing said needle from said retaining member comprises a pair of diametrically opposite fins, which are formed in the retaining portion of said retaining member and which project upwardly from the plate and diverge toward the cap, said fins ending with a convex portion interfering with said axial projections when the cap is depressed and the retaining member is made to slide along the sleeve for releasing the plate from the protrusions, so that, when the cap is completely lowered against the sleeve, the retaining member is arranged with the plate against the gauze and the branch of the L-shaped needle is completely placed through the patient's skin after having passed through an opening in the gauze. 12. A container as claimed in claim 5, wherein said retaining member comprises two coupled half-shells and includes a securing portion directed toward said cap and a retaining portion directed toward said sleeve, said retaining portion including a cavity between said half-shells for receiving said needle, and said securing portion comprising two shoulders, which are received into corresponding recesses formed in the edge of the sleeve remote from said base, and an axial recess extending up to said cavity. 13. A container as claimed in claim 12, wherein said sleeve comprises means for resiliently retaining said half-shells against each other. 14. A container as claimed in claim 12, wherein respective radial projections are provided on the inner surface of said sleeve in correspondence with the recesses, which projections co-operate with said shoulders and with respective teeth formed in the securing portion of said retaining member to axially join said retaining member to said sleeve. 15. A container as claimed in claim 12, wherein one of said half-shells comprises one or more pins engaging corresponding holes in the other half-shell when said half-shells are coupled to each other. 16. A container as claimed in claim 12, wherein the inlet branch of said needle is retained inside said cavity by co-operation between at least one support projection-and at least one tongue provided on one of said half-shells and received in respective seats provided in the other half-shell. 17. A container as claimed in claim 16, wherein one of said support projections is configured to prevent transversal movements of said needle relative to said sleeve. 18. A container as claimed in claim 12, wherein the half-shells are divided into first sections and second sections connected by a flexible connecting member, said first sections being shaped to define therebetween a passage for the outlet branch of said needle when said half-shells are joined to each other. 19. A container as claimed in claim 18, wherein said sleeve comprises two facing L-shaped axial projections forming a seat for said first sections. 20. A container as claimed in claim 19, wherein said releasing member comprises a projection provided inside said cap and received within said recess, wherein said projection is configured to force apart said second sections of the half-shells of said retaining member and push the inlet branch of said needle toward the container base when said cap slides on said sleeve, until the complete placement of the outlet branch of said needle through the patient's skin. 21. A container as claimed in claim 11, further comprising a second gauze, protected by a respective removable adhesive film and joined with said first gauze, the second gauze being foldable on the first gauze when the needle has been inserted and the container has been removed, whereby the first gauze and the inlet branch of the needle can be covered leaving only said second gauze exposed. 22. A container as claimed in claim 20, further comprising a second gauze, protected by a respective removable adhesive film and joined with said first gauze, the second gauze being foldable on the first gauze when the needle has been inserted and the container has been removed, whereby the first gauze and the inlet branch of the needle can be covered leaving only said second gauze exposed. 23. A container for facilitating placement of a cannula of a medical device through a patient's skin, the container comprising: a housing comprising a cap telescopically slidable over a sleeve, said sleeve defining an axis therethrough and including a resting base configured for placement against said patient's skin, said cap being slidable between a first position and a second position along the axis of said sleeve, wherein said cap substantially encases the axial length of said sleeve when said cap is in said second position; and a retaining member located within said housing, said retaining member having a piercing member secured thereto, said piercing member extending at least partially through said cannula for transcutaneous placement of said cannula; wherein said piercing member is concealed within said sleeve when said cap is in said first position and exposed from said sleeve when said cap is in said second position; wherein upon exertion of said pressure on said cap, said cap slides axially toward said patient's skin along said sleeve so that said piercing member is placed through said patient's skin and an end of said cannula is transcutaneously inserted and said medical device is retained on the patient and said piercing member secured to said retaining member is removed. 24. The container of claim 23 wherein a force resulting from an insertion pressure exerted on said cap is transferred to said piercing member. 25. The container of claim 23 further comprising a projecting structure defining said retaining member and extending generally axially from an end portion of said cap within said sleeve. 26. The container of claim 25 wherein said piercing member is attached to said projecting structure. 27. The container of claim 23 wherein said base comprises an adhesive face configured for adhering said base to said patient's skin. 28. The container of claim 27 further comprising a gauze attached to said base, said gauze configured for adhering said base to said patient's skin. 29. The container of claim 28, wherein said gauze includes an opening for said piercing member. 30. The container of claim 27 further comprising a protective film for covering said adhesive face prior to adhering said base to said patient's skin. 31. A container for facilitating placement of a cannula of a medical device through a patient's skin, the container comprising: a housing comprising a care telescopically slidable over a sleeve, said sleeve defining an axis therethrough and including a resting base configured for placement against said patient's skin, said cap being slidable between a first position and a second position along the axis of said sleeve, wherein said care substantially encases the axial length of said sleeve when said care is in said second position; and a retaining member located within said housing, said retaining member having a piercing member secured thereto, said piercing member extending at least partially through said cannula for transcutaneous placement of said cannula; and a release member for releasing said piercing member from said retaining member; wherein said piercing member is concealed within said sleeve when said cap is in said first position and exposed from said sleeve when said care is in said second position; and wherein upon exertion of said pressure on said cap, said cap slides axially toward said patient's skin along said sleeve so that said piercing member is placed through said patient's skin and an end of said cannula is transcutaneously inserted and said medical device is retained on the patient and said piercing member secured to said retaining member is removed. 32. The container of claim 23, further comprising a releasable annular protector surrounding said at least a portion of said sleeve to prevent said cap from sliding relative to said sleeve. 33. The container of claim 23, wherein said sleeve extends distal to a tip of said piercing member prior to insertion of said piercing member. 34. The container of claim 23, wherein said sleeve further comprises a pair of guiding members to guide said cap relative to said sleeve when said cap is depressed. 35. The container of claims 23 wherein said piercing member is adapted to administer a drug.
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