IP Library Granted Patent US 8,308,703
Granted Patent B2
US 8,308,703 · App. 12/650,316 · Granted Nov 13, 2012

Systems and methods for improved connection to wound dressings in conjunction with reduced pressure wound treatment systems

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Quick Facts
Patent No.
US 8,308,703
App. No.
12/650,316
Granted
Nov 13, 2012
Kind
B2
Abstract

A system for applying reduced pressure to tissue includes a multi-lumen reduced pressure delivery tube having a proximate end, a distal end, a primary lumen extending through the conduit from the proximate end to the distal end, and an ancillary lumen extending through the conduit from the proximate end to the distal end. A vacuum pump is coupled to the proximate end of the primary lumen, and a reduced pressure adapter is coupled to the distal end of the reduced pressure delivery tube. The adapter includes channels to direct liquid away from the ancillary lumens and into the primary lumen.

Claims (48)

1. A system for applying reduced pressure to tissue, the system comprising:

a multi-lumen reduced pressure delivery tube having a proximate end, a distal end, a primary lumen extending through the delivery tube from the proximate end to the distal end, and an ancillary lumen extending through the delivery tube from the proximate end to the distal end;

a vacuum pump coupled to the proximate end of the primary lumen;

a reduced pressure adapter coupled to the distal end of the reduced pressure delivery tube, the reduced pressure adapter comprising a conduit housing in fluid communication with the ancillary lumen and the primary lumen, the conduit housing having an entry surface with channels to direct liquid away from the ancillary lumen and into the primary lumen; and

a base attached to the conduit housing, the base having radial guide channels positioned thereon.

2. The system of claim 1 , wherein the reduced pressure adapter comprises:

a recessed region defining the entry surface to the conduit housing;

a primary conduit through the conduit housing in fluid communication with the primary lumen and a primary port on the entry surface;

an ancillary conduit through the conduit housing in fluid communication with the ancillary lumen and an ancillary port on the entry surface; and

wherein the channels are positioned on the entry surface to direct liquid away from the ancillary port and to the primary port.

3. The system of claim 2 , wherein

the ancillary port is positioned substantially flush with the base.

4. The system of claim 1 , wherein the conduit housing is rotatable about the base.

5. The system of claim 1 , further comprising:

a pressure sensor coupled to the proximate end of the ancillary lumen;

a valve coupled to the ancillary lumen; and

a controller coupled to the pressure sensor, the valve, and the vacuum pump, the controller programmed to:

operate the vacuum pump to reduce pressure in the primary lumen;

receive pressure data from the pressure sensor;

monitor changes in the pressure data in response to associated changes to the vacuum pump operation;

identify if the ancillary lumen has a delayed pressure response; and

operate the valve coupled to the identified ancillary lumen.

6. A system for applying reduced pressure to a tissue site, the system comprising:

a multi-lumen reduced pressure delivery tube having an oval cross-section, a proximate end, a distal end, a primary lumen extending through the conduit from the proximate end to the distal end, and a plurality of ancillary lumens extending through the conduit from the proximate end to the distal end;

a vacuum pump coupled to the proximate end of the primary lumen; and

a reduced pressure adapter coupled to the distal end, the adapter comprising:

a conduit housing having a recessed region defining an entry surface;

a primary conduit positioned within the conduit housing and terminating at a primary port centrally positioned on the entry surface;

ancillary conduits positioned adjacent to the primary conduit and terminating at ancillary ports located on the entry surface;

a linear serrated channel section along approximately half of the entry surface;

a radial serrated channel section along approximately one-third of the entry surface;

a base attached to the conduit housing;

radial guide channels positioned on the base to direct liquid from a periphery of the base away from the ancillary ports;

an intermediate collection channel positioned on the base to direct liquid into the radial guide channels; and

a volatile organic compound sensitive strip mounted within the recessed region.

7. The system of claim 6 , wherein the conduit housing is rotatable about the base.

8. The system of claim 6 , wherein:

the conduit housing is rotatable about the base; and

the ancillary ports are positioned substantially flush with the base.

9. The system of claim 6 , further comprising:

a pressure sensor coupled to the proximate end of at least one of the ancillary lumens;

a valve coupled to the at least one of the ancillary lumens; and

a controller coupled to the pressure sensor, the valve, and the vacuum pump, the controller programmed to:

operate the vacuum pump to reduce pressure in the primary lumen;

receive pressure data from the pressure sensor;

monitor changes in the pressure data in response to associated changes to the vacuum pump operation;

identify if the at least one of the ancillary lumens has a delayed pressure response; and

operate the valve.

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2024
From: 3M INNOVATIVE PROPERTIES COMPANY
To: SOLVENTUM INTELLECTUAL PROPERTIES COMPANY
Reel/Frame 066444/0162 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 31, 2023
From: KCI LICENSING, INC.
To: 3M INNOVATIVE PROPERTIES COMPANY
Reel/Frame 064790/0085 →
RELEASE OF SECURITY INTEREST IN PATENTS Recorded Nov 7, 2019
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: KCI USA, INC.; KCI LICENSING, INC.
Reel/Frame 050966/0547 →
RELEASE OF SECURITY INTEREST REEL/FRAME 040098/0268 Recorded Feb 8, 2017
From: WILMINGTON TRUST
To: KCI USA, INC.
Reel/Frame 041666/0320 →
LIMITED THIRD LIEN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Oct 7, 2016
From: KCI USA, INC.; LIFECELL CORPORATION; KCI LICENSING, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 040291/0237 →
SECOND LIEN SECURITY AGREEMENT Recorded Sep 21, 2016
From: KCI USA, INC.; LIFECELL CORPORATION; KCI LICENSING, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 040098/0268 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 20, 2015
From: HEATON, KEITH PATRICK; ROBINSON, TIMOTHY MARK; LOCKE, CHRISTOPHER BRIAN
To: KCI LICENSING, INC.
Reel/Frame 035212/0671 →