Sealable, penetrable interface and methods of making and using same

• US 10,456,571 B2
• Filed: 01/03/2018
• Issued: 10/29/2019
• Est. Priority Date: 01/09/2017
• Status: Active Grant

• Current Assignee: Stillwater Trusts
• Original Assignee: Stillwater Trusts
• Inventors: Cairns, James L.
• Primary Examiner(s): Lee, Brandy S
• Application Number:
  US15/861,098
• Publication Number:
  US 20180193627A1
• Time in Patent Office: 664 Days
• CPC Class Codes: A61M 2039/062 used with a catheter
• CPC Class Codes: A61M 2039/0626 used with other surgical instruments, e.g. endoscope, trocar
• CPC Class Codes: A61M 2039/0653 Perforated disc
• CPC Class Codes: A61M 39/0606 without means for adjusting the seal opening or pressure A61M39/0693 takes precedence

Abstract

A penetrable interface configured to separate two or more spaces can include an elastomeric seal having a first segment and a second segment. A portion of the second segment can be integrally formed with a portion of the first segment. The first and second segments can create a sealing engagement therebetween in the absence of an applied force on the second segment. The first and second segments can be distorted out of sealing engagement when subjected to the applied force on the second segment.

Claims

1. A penetrable interface configured to separate two or more spaces, the interface comprising:

an elastomeric seal having a bore and a tap, at least a portion of the tap having a cylindrical shape, the tap having a central portion attached to an uncut portion of the elastomeric seal, the central portion of the tap being integrally formed with the uncut portion, the tap including a first flared portion, the bore and the tap creating a sealing engagement therebetween in the absence of an applied force on the tap, the uncut portion providing an elastic force to return the tap to an at-rest or initial position within the bore in the absence of an applied force on the tap, and the bore and the tap being distorted out of sealing engagement when subjected to an applied force on the tap.

2. The penetrable interface of claim 1, wherein the applied force is a pressure differential across the interface.

3. The penetrable interface of claim 1, wherein the applied force is created by a rigid object.

4. The penetrable interface of claim 1, wherein the tap returns to a sealing position within the bore when the applied force is removed.

5. The penetrable interface of claim 1, wherein a crescent-shaped perforation defines the interface between the bore and the tap.

6. The penetrable interface of claim 1, wherein the first flared portion is spaced-apart from a second flared portion.

7. The penetrable interface of claim 1, wherein the tap is defined by a perforation between the bore and the tap.

8. The penetrable interface of claim 1, wherein the tap is configured to move with respect to the bore.

9. The penetrable interface of claim 1, wherein the bore and the tap are two distinct segments of the elastomeric seal.

10. A penetrable interface configured to separate two or more spaces, the interface comprising:

an elastomeric seal having a first segment and a second segment, a portion of the second segment being integrally formed with a portion of the first segment, the first and second segments creating a sealing engagement therebetween in the absence of an applied force on the second segment, and the first and second segments being distorted out of sealing engagement when subjected to an applied force on the second segment,

wherein the second segment includes a first flared end portion spaced-apart from a second flared end portion, each flared end portion being configured to aid in centering the second segment within the first segment.