Venous access port assembly with push surfaces

Patent metadata

Field	Value
Publication number	US-9561358-B2
Application number	US-39239609-A
Country	US
Kind code	B2
Filing date	Feb 25, 2009
Priority date	Feb 29, 2008
Publication date	Feb 7, 2017
Grant date	Feb 7, 2017

Abstract

A venous access port assembly ( 10 ) having a housing ( 12 ), a septum ( 14 ), a discharge stem ( 16 ) at a distal end thereof for connection to a catheter ( 50 ), and an interior chamber ( 18 ). The housing includes a pair of recesses ( 28 ) along both sides thereof between the distal end and a proximal port end ( 24 ), where the recesses facilitate pushing the assembly by the practitioner into a subcutaneous pocket ( 104 ) of a patient ( 100 ) for implantation into the pocket.

First claim

What is claimed is:

1. A venous access port assembly, comprising:
a housing having a base and a distal end, a proximal end, and opposed side walls between the distal and the proximal ends of the housing;
a single septum secured to and within the housing;
a discharge stem extending from the distal end of the housing, for connection to a catheter;
a protuberance having a shovel shape extending from the proximal end of the housing, for subcutaneously urging the port assembly into an incision of a patient;
wherein an outer surface of the protuberance is smooth, for urging the port assembly into the incision of the patient; and

a single chamber located beneath the single septum and within the housing, the single chamber in fluid communication with the discharge stem, and needle accessible through the single septum;
wherein:
the discharge stem defines a longitudinal axis of and through the port assembly;
from a top view, the port assembly is symmetrical about the longitudinal axis;
the protuberance further comprising a rounded tip leading to a sloped top, the sloped top extending from the rounded tip,
wherein:
from a side view both the rounded tip and the sloped top extend upward from a flat base of the housing so as to exhibit a concave shape;
from a top view a transition from the rounded tip to the sloped top on each side of the port assembly exhibits a concave shape; and
transitions from the rounded tip to the sloped top and from the rounded tip to the sides of the port assembly are smooth;

an interface between the flat base and any portion of the protuberance is continuous;
from the top view, each side wall defines a single recess of concave curvature, wherein a curved plane defined by each recess has an apex that is perpendicular to a flat geometric plane of the base and each recess includes a perimeter edge.

2. The venous access port assembly of claim 1 , wherein, from the top view, each opposed side wall further comprises, along a length thereof, on each of a proximal and a distal end of the concave recess, a portion of side wall having convex curvature.

3. The venous access port assembly of claim 1 , wherein, from the top view, each opposed side wall includes convex, then concave, then convex curvature along a length thereof, from the proximal to the distal end of the housing, and wherein a vertex of each of the convex, then concave, then convex curvatures of a first opposing side wall is at a subtending location of a respective vertex for each of the convex, then concave, then convex curvatures of a second opposing side wall.

4. The venous access port assembly of claim 1 , further comprising:
a suture hole formed within the housing, the suture hole being vertical with respect to the flat plane of the base to form a vertical suture hole located at a central location between first and second protuberance sides.

5. The venous access port assembly of claim 1 , wherein, from the side elevation, each recess forms a semi-oval indentation.

6. The venous access port assembly of claim 1 , wherein an uppermost portion of the housing immediately surrounds an entirety of a perimeter of the single septum and is structured to be in a geometric lane that is parallel to the flat geometric plane of the base.

7. The venous access port assembly of claim 1 , wherein at least a portion of each side wall within each recess is oriented perpendicularly to the longitudinal axis.

8. A venous port assembly, comprising:
a housing having a base and a distal end, a proximal end, and opposed side walls between the distal and the proximal ends of the housing;
a single septum secured to and within the housing;
a discharge stem extending from the distal end of the housing, for connection to a catheter;
a protuberance having a shovel shape extending from the proximal end of the housing, for subcutaneously urging the port assembly into an incision of a patient, the protuberance having a first protuberance side and a second protuberance side;
wherein at least a portion of an outer surface of the protuberance, the portion including a most proximal end of the protuberance and a housing section leading to each opposing side wall, is smooth, for urging the port assembly into the incision of the patient; and

a single chamber located beneath the single septum and within the housing, the single chamber in fluid communication with the discharge stem, and needle accessible through the single septum;
wherein;
a transition from the outer surface of the protuberance to an outer surface of the base is continuous and smooth;
an interface between the base and any portion of the protuberance is continuous;
the discharge stem defines a longitudinal axis of and through the port assembly;
from a top view, the port assembly is symmetrical about the longitudinal axis;
from the top view, each side wall defines a single recess of concave curvature, wherein a curved plane defined by each recess has an apex that is perpendicular to a flat geometric plane of the base and each recess includes a perimeter edge; and
an uppermost portion of the housing immediately surrounds an entirety of a perimeter of the single septum and is structured to be in a geometric plane that is parallel to the flat geometric plane of the base.

9. The venous access port assembly of claim 8 , wherein, from the top view, each opposed side wall further comprises, along a length thereof, on each of a proximal and distal end of the concave recess, a portion of side wall having convex curvature.

10. The venous access port assembly of claim 8 , wherein, from the top view, each opposed side wall includes convex, then concave, then convex curvature along a length thereof, from the proximal to the distal end of the housing, and wherein a vertex of each of the convex, then concave, then convex curvatures of a first opposing side wall is at a subtending location of a respective vertex for each of the convex, then concave, then convex curvatures of a second opposing side wall.

11. The venous access port assembly of claim 8 , further comprising:
a suture hole formed within the housing, the suture hole being vertical with respect to the flat plane of the base to form a vertical suture hole located at a central location between the first and second protuberance sides.

12. The venous access port assembly of claim 8 , wherein, from the side elevation, each recess forms a semi-oval indentation.

13. The venous access port assembly of claim 8 , wherein at least a portion of each side wall within each recess is oriented perpendicularly to the longitudinal axis.

14. A venous access port assembly, comprising:
a housing having a base and a distal end, a proximal end, and opposed side walls between the distal and the proximal ends of the housing;
a single septum secured to and within the housing;
a single discharge stem extending from the distal end of the housing, for connection to a catheter;
a protuberance having a shovel shape extending from the proximal end of the housing, for subcutaneously urging the portion assembly into an incision of a patient;
wherein at least a portion of an outer surface of the protuberance, the portion including a most proximal end of the protuberance and a housing section leading to each opposing side wall, is smooth, for urging the port assembly into the incision of the patient; and
a single chamber located beneath the single septum and within the housing, the single chamber in fluid communication with the single discharge stem, and needle accessible through the single septum;
wherein;
the discharge stem defines a longitudinal axis of and through the port assembly

Assignees

• Linden Christopher
• Timko John W
• Medical Components Inc

Inventors

• Linden Christopher
• Timko John W

Classifications

• A61M39/0208 Primary

  Subcutaneous access sites for injecting or removing fluids (transcutaneous access sites A61M39/0247; implantable infusion devices A61M5/14276) · CPC title

• A61M2039/0232

  having means for facilitating the insertion into the body · CPC title