EP0143517A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Implantable parenteral hyperalimentation catheter system
Assignee: Minntech Corp
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Filing: 1984-09-03
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Granted: —
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Expires: 2004-09-03
Abstract
Abstract An implant device for introduction of nutrients or chemotherapy agents to the heart. A substantially rigid percutaneous body (10) is firmly held to the skin by means of a flexible sleeve member (12) formed of a polytetrafluoroethylene polymer at the epidermis (14) and a polyethylene terephthalate portion (22) through the dermis (16). A catheter (24) extends from the rigid body (10) into the right auricle of the heart or large central vein such as the superior vena cava. The catheter (24) is positioned and anchored by means of a sliding wing (48) which can provide tissue ingrowth where the wing is positioned by the surgeon. A septum closure (32) within the tubular body cavity seals off the implant interior from the environment. When not in use, a sponge (72) saturated with disinfectant is placed within the device's internal cavity (74) which is capped and thereby maintains sterility. Nutrients are supplied through an access set (55) which includes a single probe carrier (56) and a flexible carrier cap (52) which expands so as to snap fit over the tubular body (10) which extends through the skin. The septum (32) is penetrated by a short shell cannula (64) which extends from the single probe carrier (56).
Inventors
- 👤 F. Jesus Martinez
- 👤 Larry E. Fuller
- 👤 Louis C. Cosentino
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 04:04
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/0247; A61L; A61L29/00; A61L29/04; A61L29/041; A61L29/06; A61M39/10; A61M2039/0261; A61M2039/0273; A61M2039/0282; A61M2039/1027; A61M2039/1066; A61M2039/1072
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
127 words
A percutaneous implant device especially adaptable for parenteral hyperalimentation, and chemotherapy the implant device comprising: a substantially rigid tubular percutaneous body of biologically compatible material which extends through the skin when implanted so as to provide means for introducing nutrients to the heart; flexible subcutaneous catheter means associated with said tubular percutaneous body for providing fluid communication between the body exterior and the right auricle of the heart; porous tissue ingrowth means for anchoring the device to the body, including a porous collar of polytetrafluoroethylene overlaying said tubular percutaneous body on the portion of said tubular body to be embedded within the epidermis; and carrier cap means constructed and arranged to include a probe carrier for providing fluid communication from a nutrient supply tube to said catheter.
Claim 2
Dependent Claim
127 words
A percutaneous implant device especially adaptable for parenteral hyperalimentation, and chemotherapy the implant device comprising: a substantially rigid tubular percutaneous body of biologically compatible material which extends through the skin when implanted so as to provide means for introducing nutrients to the heart; flexible subcutaneous catheter means associated with said tubular percutaneous body for providing fluid communication between the body exterior and the right auricle of the heart; porous tissue ingrowth means for anchoring the device to the body, including a porous collar of polytetrafluoroethylene overlaying said tubular percutaneous body on the portion of said tubular body to be embedded within the epidermis; and carrier cap means constructed and arranged to include a probe carrier for providing fluid communication from a nutrient supply tube to said catheter.
Claim 3
Dependent Claim
30 words
The device of Claim 1 wherein said tubular body includes in the interior thereof, an elastomeric septum member and means for holding said septum member in a sealing relationship therein.
Claim 4
Dependent Claim
32 words
The device in Claim 2 wherein said elastomeric septum member include a conical, centered depression on the surface opposed from said catheter and an elongated recess on the surface facing said catheter.
Claim 5
Dependent Claim
36 words
The device of Claim 3 wherein said elastomeric septum member includes a preformed slit therethrough and an elastomeric O-ring surrounding said septum member such that said slit is closed due to radial pressure from said O-ring.
Claim 6
Dependent Claim
35 words
The device of Claim 1 wherein said flexible subcutaneous catheter means includes sliding wing means constructed of porous tissue ingrowth material and arranged for aiding the positioning and anchoring of said catheter within the body.
Claim 7
Dependent Claim
124 words
A parenteral hyperalimentation device comprising: a substantially rigid, tubular percutaneous body of biologically compatible material which extends through a patient's skin when implanted; flexible, subcutaneous catheter means associated with said tubular percutaneous body for providing fluid communication between the body exterior and a right auricle of a heart; porous tissue ingrowth means for anchoring said tubular percutaneous body within said skin; an elastomeric septum member occupying a portion of the tubular portion of said body, and means for holding said septum member in a sealed relationshp within the interior of said tubular percutaneous body; and carrier cap means constructed and arranged for securing a nutrient supply source to said tubular body and for providing fluid communication between said nutrient supply source and said catheter.
Claim 8
Dependent Claim
124 words
A parenteral hyperalimentation device comprising: a substantially rigid, tubular percutaneous body of biologically compatible material which extends through a patient's skin when implanted; flexible, subcutaneous catheter means associated with said tubular percutaneous body for providing fluid communication between the body exterior and a right auricle of a heart; porous tissue ingrowth means for anchoring said tubular percutaneous body within said skin; an elastomeric septum member occupying a portion of the tubular portion of said body, and means for holding said septum member in a sealed relationshp within the interior of said tubular percutaneous body; and carrier cap means constructed and arranged for securing a nutrient supply source to said tubular body and for providing fluid communication between said nutrient supply source and said catheter.
Claim 9
Dependent Claim
35 words
The device of Claim 6 wherein said porous tissue ingrowth means includes a porous collar of polytetrafluorethylene overlaying said tubular percutaneous body on the portion of said tubular body to be embedded within the epidermis.
Claim 10
Dependent Claim
30 words
The device of Claim 7 wherein said porous tissue ingrowth means includes a porous collar of polyethylene terephthalate overlaying said tubular percutaneous body between said polytetrafluroethylene collar and said catheter.
Claim 11
Dependent Claim
34 words
The device of Claim 6 wherein said catheter means includes a sliding wing constructed of porous tissue ingrowth material and arranged for aiding the positioning and anchoring of said catheter within a patient's body.
Claim 12
Dependent Claim
58 words
The device of Claim 6 wherein said carrier cap means includes a cap constructed and arranged to snap fit over said tubular percutaneous body and a probe carrier extending through said cap, said carrier including nutrient tubing connection means and a short shell cannula for penetrating said septum member when said cap is secured to said tubular body.
References Cited (Backward Citations)
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