Implantable device for administration of drugs or other liquid solutions
First Claim
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1. An implantable device for administering substances to body tissues of a patient comprising:
- an outer casing defining an inner space, said casing being formed of porous synthetic material having pores formed and sized for growth of body tissue through the pores of said synthetic material into said inner space, said outer casing having at least one opening therein which communicates with said inner space; and
an inlet catheter of non-porous synthetic material in communication with said opening of said outer casing to form a passageway for conveyance of substance between said inlet catheter and said inner space.
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Abstract
An implantable device for administering drugs or other substances to body tissues of a patient is disclosed. The device is designed to allow controlled ingrowth of connective tissue into the device, and a solution may be pumped or injected into the device where the solution is diffused through the ingrown connective tissue and out into the body.
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Citations
22 Claims
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1. An implantable device for administering substances to body tissues of a patient comprising:
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an outer casing defining an inner space, said casing being formed of porous synthetic material having pores formed and sized for growth of body tissue through the pores of said synthetic material into said inner space, said outer casing having at least one opening therein which communicates with said inner space; and an inlet catheter of non-porous synthetic material in communication with said opening of said outer casing to form a passageway for conveyance of substance between said inlet catheter and said inner space. - View Dependent Claims (2, 3, 4, 5)
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6. An implantable device for administering substances to body tissues of a patient comprising:
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an outer casing of porous synthetic material having pores of sufficient size to allow growth of body tissue therethrough; at least one tubule of synthetic material capable of allowing molecules of sufficiently small size to pass through said material while prohibiting growth of body tissue therethrough, said tubule having at least one open end, and said tubule being positioned within said outer casing; a first collecting member in communication with said open end of said tubule, said collecting member having at least one aperture therein; and an inlet catheter connected to said aperture of said collecting member to form a pathway for substances therebetween. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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15. An implantable device for administering substances to body tissues of a patient comprising:
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a hollow outer casing of porous synthetic material having pores of sufficient size to allow growth of body tissue therethrough; a hollow inner casing of synthetic material capable of allowing molecules of sufficiently small size to pass through said material while prohibiting growth of body tissue therethrough, said inner casing being positioned within said outer casing; and an inlet catheter of non-porous material in communication with said hollow inner casing to form a pathway for conveyance of substances therebetween. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A method of implanting an implantable device for administering substances to body tissues of a patient comprising:
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obtaining a device comprising an outer casing of porous synthetic material capable of allowing body tissue to grow into the pores of the synthetic material, an inlet catheter and outlet catheter; making a surgical incision in the area of the patient where implantation is desired; forming a cavity in the tissue area for placement of the device; placing the device within the cavity; draping excess tissue from the surrounding area about the device to encourage tissue ingrowth; securing said excess tissue in place about the device; placing said inlet catheter and said outlet catheter in close proximity to the skin of the patient for ease of access postoperatively; suturing said inlet catheter and said outlet catheter in place; and suturing the incision area closed.
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Specification