ALARM SYSTEM

• US 20150025486A1
• Filed: 08/04/2014
• Published: 01/22/2015
• Est. Priority Date: 08/10/2010
• Status: Active Grant

• Current Assignee: Solventum Intellectual Properties Company (Solventum Corp.)
• Original Assignee: Spiracur Inc
• Inventors: HU, Dean, YORKEY, Thomas, ANDERSON, Evan, WU, Kenneth
• Granted Patent: US 9,943,629 B2
• Time in Patent Office: Days
• US Class Current: 604/319
• CPC Class Codes: A61M 1/67 Containers incorporating a piston-type member to create suction, e.g. syringes cupping glasses A61M1/08; with a flexible member creating suction A61M1/68
• CPC Class Codes: A61M 1/80 Suction pumps A61M1/64, A61M1/71, A61M60/00 take precedence
• CPC Class Codes: A61M 1/81 Piston pumps, e.g. syringes
• CPC Class Codes: A61M 1/815 the barrel serving as aspiration container, e.g. in a breast pump
• CPC Class Codes: A61M 1/882 Draining devices provided with means for releasing antimicrobial or gelation agents in the drained fluid
• CPC Class Codes: A61M 1/90 Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
• CPC Class Codes: A61M 1/985 the dressing itself forming the collection container
• CPC Class Codes: A61M 2205/18 with alarm
• CPC Class Codes: A61M 2205/702 automatically during use
• CPC Class Codes: A61M 2205/8206 battery-operated

Abstract

Described herein are alarm systems for suction devices for reduced pressure therapy. Alarms systems provide alerts to the patient and/or practitioner regarding the ability of the suction device to continue to provide negative pressure to a tissue region. Alarm systems comprise a sensor mechanism, which is capable of detecting the position of a slidable seal within the suction device, and generating an alert. Certain variations of alarms systems comprise magnetic field sensitive switches and/or electric switches. Other variations of alarm systems comprise rotary encoders to detect the motion and location of constant force springs, which signal the notification mechanism to issue alerts accordingly. Described herein are alarm devices configured to retain a suction device therein and to attach the suction device to a patient. The alarm devices disclosed herein detect the depleted state of the suction device and are capable of retaining the suction device in a plurality of orientations.

Claims

1. (canceled)

8. The system of claim 1, wherein the absorbent material comprises a superabsorbent material.

9. The system of claim 1, wherein the absorbent material is powder-like in the first state, and gel-like in the second state.

2. A reduced pressure therapy system comprising:

a suction device comprising a suction chamber; and

a fluid retention system having a first state and a second state, comprising a carrier structure and an absorbent material, wherein the absorbent material is retained by the carrier structure in the first state.

wherein the absorbent material is non-hydrated and attached to the carrier structure in the first state and hydrated and separated from the carrier structure in the second state.

3. The system of claim 2, wherein the carrier structure is attached to the interior of the suction device in the first state.

4. The system of claim 2, wherein carrier structure attached to a distal portion of the suction chamber in the first state.

5. The system of claim 4, wherein the carrier structure is attached by adhesives.

6. The system of claim 2, wherein the carrier structure has a shape that corresponds to a cross-sectional shape of the suction device.

7. The system of claim 2, wherein the suction chamber comprises an inlet opening, and wherein the carrier structure comprises an aperture aligned with the inlet opening in the first state.