Guidewire Compatible Port and Method for Inserting the Same

• US 20090157045A1
• Filed: 02/17/2009
• Published: 06/18/2009
• Est. Priority Date: 10/01/1997
• Status: Active Grant

• Current Assignee: AngioDynamics, Inc.
• Original Assignee: Navilyst Medical Incorporated (AngioDynamics, Inc.)
• Inventors: Haarala, Brett, Shaw, William, Davey, Chris
• Granted Patent: US 9,033,914 B2
• Time in Patent Office: Days
• US Class Current: 604/513
• CPC Class Codes: A61M 2039/0235 having an additional inlet, e.g. for a guidewire or a catheter tube
• CPC Class Codes: A61M 39/0208 Subcutaneous access sites for injecting or removing fluids transcutaneous access sites A61M39/0247; implantable infusion devices A61M5/14276

Abstract

An access port assembly having an attachable catheter allows for inserting a guidewire into the catheter to aid in the placement of the integral catheter while still attached to the access port assembly. A method is described for placing an access port fixedly attached to a catheter into a patient using a guidewire inserted into the catheter.

Claims

1-44. -44. (canceled)

45. An access port for implantation in a living body, comprising:

a housing defining a reservoir, the housing being formed of a first part coupled to a second part;

a self-sealing septum between the first and second parts, an outer surface of the septum forming a portion of an exterior surface of the housing defining an access site through which a needle may be inserted into the reservoir in a first direction;

an outlet being in fluid communication with the reservoir and configured for connection to a catheter; and

an entry site opposite the outlet, the entry site being substantially aligned with of the outlet to permit insertion of one of a guidewire and a stylet through the entry site into the housing and from there into the outlet.

46. The port of claim 45, wherein the access site is formed as an opening in the first part, the first part forming a proximal portion of the housing which, when the port is implanted in a desired position faces outward toward a surface of the living body through which the port is to be accessed.

47. The port of claim 46, wherein the entry site is formed in located on the first part.

48. The port of claim 46, wherein the reservoir is defined between the septum and the second part.

49. The port of claim 45, wherein the outlet is in continuous, unimpeded fluid communication with the reservoir.

51. The port of claim 45, wherein the septum comprises a unitary, single-piece construction comprising a first septum portion and a second septum portion, the first septum portion providing access to the reservoir via the entry site and the second septum portion providing access to the reservoir via the access site.

52. The port of claim 45, wherein the outlet is configured to be connected to a catheter such that when a catheter is connected to the port, the reservoir is in continuous, unimpeded fluid communication with the catheter.

53. The port of claim 52, wherein the entry site permits access from an exterior of the port to the reservoir without passing through the access site and wherein the access site permits access from an exterior of the port to the reservoir without passing through the entry site and without passing through the outlet.

50. An apparatus for accessing an internal body structure for fluid transfer with the internal body structure, comprising:

a port for implantation within a living body, the port comprising;

a housing defining a reservoir, the housing being formed of first part coupled to a second part;

a self-sealing septum between the first and second parts, an outer surface of the septum forming a portion of an exterior surface of the housing defining an access site through which a needle may be inserted into the reservoir in a first direction;

an outlet being in fluid communication with the reservoir and configured for connection to a catheter; and

an entry site located opposite the outlet the entry site being substantially aligned with the outlet to permit insertion of one of a guidewire and a stylet through the entry site into the housing from there into the outlet; and

a catheter connected to the outlet, wherein the reservoir is in continuous, unimpeded fluid communication with the catheter connected to the outlet.

54. A method for transferring fluid between an external device and a structure within a living body, comprising:

implanting within a living body a port defining a reservoir therewithin, the port being formed of a first part coupled to a second part and including a self-sealing septum between the first and second parts, an outer surface of the septum forming a portion of an exterior surface of the port defining an access site, an outlet in fluid communication with the reservoir and an entry site located opposite the outlet;

connecting a proximal end of a catheter to the outlet while a distal end of the catheter is in fluid communication with a structure within the living body with which fluid is to be transferred;

inserting one of a guidewire and a stylet through the entry site into the housing from there into the outlet; and

inserting a needle through the septum into the reservoir to transfer fluids between the internal body structure and an exterior of the body via the reservoir, the catheter and the needle.

55. The method of claim 54, wherein the one of a guide wire and a stylet is inserted into the reservoir via the entry site without passing through the access site and wherein the needle is inserted into the reservoir via the access site without passing through the entry site and without passing through the outlet.