US 8,956,330 B2Granted

Infusion set

AssigneeTechpharma Licensing AG

InventorThomas F. Fangrow, Jr.

Life of this patent

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Abstract

An infusion set comprises a base member (60), an introducer cap (64), and an infusion cap (54). The base member (60) preferably comprises a soft cannula (52) extending from a lower side (118) of the base member (60), and a port (62) on an upper side (92) thereof. The port (62) is configured to be in fluid communication with the cannula (52). The port (62) also comprises a septum (130) adapted to seal the port (62) against unwanted fluid flow. The introducer cap (64) is adapted to be mounted to the base member (60) and has a needle (66) adapted to extend through the septum (130) and said soft cannula (52) in an assembled position. The infusion cap (54) comprises a lumen (160) adapted to receive an elongate flexible tube (162). The infusion cap (54) also comprises a hard cannula (170) adapted to be inserted through the septum (130) and to place said soft cannula (52) in fluid communication with said lumen (160).

Claims20

Dependent claims

An infusion set, comprising:

a base having upper and lower sides, a base cannula extending downwardly from the lower side, and a port extending upwardly on the upper side and being in fluid communication with a first open end of the base cannula, and a septum configured to inhibit fluid communication through the port to the first open end of the base cannula, the septum providing the only path through which to access the first open end of the base cannula besides through the base cannula itself from a second open end;
an adhesive layer mounted to the lower side of the base;
a first cap comprising an upper side, a lower side, a tubing extending from the upper side and a cap cannula extending from the lower side, the cap cannula configured to extend into the septum of the base when the first cap is attached to the upper side of the base so as to place the tubing in fluid communication with the base cannula;
and
a second cap comprising:
an upper side and a lower side opposite the upper side;
a guide wall inwardly spaced from a periphery of the second cap and extending downwardly on the lower side of the second cap and sized to closely surround the septum and port of the base when the second cap is attached to the base such that the guide wall facilitates location of the second cap on the base as the second cap is being attached to the base, and thereby preventing access to the septum apart from access from the second open end of the base cannula;
first and second engagement members configured to engage the base to retain the second cap on the base;
and
grooves positioned inwardly of the engagement members to facilitate flexure of the engagement members for release of the engagement members from the base to permit removal of the second cap from the base, the second cap having no needle configured to pass through the septum of the base when the second cap is attached to the base;
wherein attachment of the first cap to the base prevents the second cap from attaching the base and attachment of the second cap to the base prevents the first cap from attaching to the base.

8 more elements

An infusion set, comprising:

a base having upper and lower sides;
a base cannula configured to extend downwardly from the lower side of the base and the upper side of the base being configured to be in selective fluid communication with the base cannula;
a septum;
an adhesive layer on the lower side of the base;
a first cap comprising:
a housing defining a tube-receiving lumen that extends through the housing;
a tubing positioned within the tube-receiving lumen and extending therefrom to an end configured for connection to a pump or other fluid source;
and
a cap cannula in fluid communication with the tubing and extending outwardly from the tube-receiving the tube receiving lumen, the cap cannula configured to extend into the septum when the first cap is attached to the base so as to place the tubing in fluid communication with the base cannula to thereby infuse fluid from the tubing into the cap cannula and from the cap cannula into the base cannula;
and
a second cap comprising an upper side, a lower side, a guide wall inwardly spaced from a periphery of the second cap and extending downwardly on the lower side of the second cap to facilitate location of the second cap on the base, first and second engagement members configured to engage the base to retain the second cap on the base, and grooves to facilitate flexure of the engagement members for release of the engagement members from the base to permit removal of the second cap from the base, the septum of the base being unpenetrated when the second cap is attached to the base as the second cap prevents access to the septum from the upper side of the base;
wherein the infusion set is configured such that attachment of the first cap to the base prevents the second cap from attaching to the base and attachment of the second cap to the base prevents the first cap from attaching to the base.

9 more elements

An infusion set, comprising:

a base having upper and lower sides and comprising:
a base cannula extending between a first open and a second open end;
a port on the upper side and being in fluid communication with the first open end of the base cannula;
a septum positioned on the port over the first open end of the base cannula;
and
a base engagement member;
an adhesive layer mounted to the lower side of the base;
a first cap for infusing a medication through the infusion set to a user, the first cap having an upper side and a lower side and comprising:
a tube extending from the upper side;
a cap cannula extending from the lower side;
and
a first cap engagement member, wherein when the first cap is attached to the upper side of the base, the first cap engagement member is connected to the base engagement member to retain the first cap on the base and the cap cannula extends into the septum of the base placing the tubing in fluid communication with the base cannula;
and
a second cap having an upper side and a lower side and comprising:
a guide wall inwardly spaced from a periphery of the second cap and extending downwardly on the lower side of the second cap;
and
a second cap engagement member, wherein when the second cap is attached to the upper side of the base, the second cap engagement member is connected to the base engagement member to retain the second cap on the base and the guide wall surrounds the septum and port of the base, the second cap having no needle configured to pass through the septum of the base when the second cap is attached to the base;
wherein attachment of the first cap engagement member to the base engagement member prevents the second cap engagement member from attaching to the base engagement member, thereby preventing the second cap from connecting to the base and attachment of the second cap engagement member to the base engagement member prevents the first cap engagement member from attaching to the base engagement member, thereby preventing the first cap from connecting to the base.

15 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/032,559Filed 22 Feb 2011 · continuation
Priority: 7 Feb 2006
Published: US 2011/0295209 A11 Dec 2011
Granted: 17 Feb 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

A61M 25/0606
Body-piercing guide needles or the like: "Over-the-needle" catheter assemblies, e.g. I.V. catheters
A61M 5/158
Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor: needles for infusions; Accessories therefor, e.g. for inserting…
A61M 25/02
Introducing, guiding, advancing, emplacing or holding catheters: holding devices, e.g. on the body
A61M 25/0612
Body-piercing guide needles or the like: devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders

Family

Application60/771,139Us provisional application · filed 7 Feb 2006
Application11/417,613Parent of this continuation · filed 3 May 2006
Application11/417,660Parent of this continuation · filed 3 May 2006
Application11/417,503Parent of this continuation · filed 3 May 2006
US 2011/0295209 A1Pre-grant publication · published 1 Dec 2011
US 7,892,216 B2Parent of this continuation
US 7,931,615 B2Parent of this continuation
US 8,657,788 B2Parent of this continuation
US 2007/0185441 A1Published application
US 2007/0185454 A1Published application
US 2007/0185455 A1Published application
US 8,956,330 B2This patent

From the US filing history. Foreign family members aren’t listed.