Alarm system

摘要

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.

主权项

1. A reduced pressure therapy system comprising:
a suction device comprising a suction chamber and a slidable seal therein, wherein the suction device comprises a superior surface, an inferior surface, a proximal end and a distal end, a minimum chamber size configuration and a maximum chamber size configuration; a magnet coupled to the slidable seal; and an alarm device configured to retain the suction device in multiple pre-determined orientations, wherein the alarm device comprises first and second sensors, wherein the first sensor is configured to detect the maximum chamber size configuration when the suction device is in a first pre-determined orientation with the proximal end of the suction device closer to the first sensor than the second sensor, and wherein the second sensor is configured to detect when the same suction device is in the maximum chamber size configuration when in a reversed, second pre-determined orientation with the proximal end of the suction device closer to the second sensor than the first sensor; and a notification mechanism configured to generate an alert according to the location of the magnet.