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System and method for improving battery life of portable negative-pressure therapy through hysteresis control

A hysteresis control and battery technology, which is applied in the extraction and delivery system, drug devices, other medical devices, etc., and can solve the problems of difficult operation and limited battery capacity.

Active Publication Date: 2019-10-25
3M INNOVATIVE PROPERTIES COPMANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the limiting factor in many applications is not the ability of their pumps to operate more difficultly with imperfectly sealed therapeutic dressings, but rather their limited battery capacity under these conditions

Method used

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  • System and method for improving battery life of portable negative-pressure therapy through hysteresis control
  • System and method for improving battery life of portable negative-pressure therapy through hysteresis control
  • System and method for improving battery life of portable negative-pressure therapy through hysteresis control

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Embodiment Construction

[0025] The following description of the exemplary embodiments provides information to enable one skilled in the art to make and use the subject matter set forth in the appended claims, but may omit certain details already known in the art. Accordingly, the following detailed description should be considered as illustrative and not restrictive.

[0026] The exemplary embodiments may also be described herein with reference to spatial relationships between various elements or spatial orientations of various elements depicted in the figures. In general, such relationships or orientations assume a frame of reference that coincides with or is relative to the patient to be treated. However, those skilled in the art will recognize that this frame of reference is a descriptive measure of convenience rather than a strict prescriptive.

[0027] figure 1 is a simplified functional block diagram of an exemplary embodiment of a reduced pressure therapy system 100 that can provide negative...

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Abstract

A system comprises a negative-pressure source including a pump and an electric motor for maintaining negative-pressure at the wound and a pressure sensor for sensing a wound site pressure (WP). The system further comprises a system controller coupled to the first pressure sensor and the electric motor. The system controller maintains the wound site pressure (WP) within a hysteresis band by the application of power to the electric motor from a battery power source, based upon, at least in part a flow rate (FR) of fluid between the pump and the wound site as determined by the system controller.The hysteresis band including a maximum wound site pressure (WPMax) and a minimum wound site pressure (WPMin).

Description

[0001] related application [0002] This application was filed on March 6, 2017 under 35USC § 119 (e) and is titled "System And Method For Improving Battery Life Of Portable Negative Pressure Therapy Through Hysteresis Control" Negative-Pressure Therapy Through Hysteresis Control), which is incorporated herein by reference for all purposes. technical field [0003] The present invention generally relates to systems and methods for improving battery life of battery-powered devices through hysteretic control. Such battery powered devices include, but are not limited to, negative pressure wound therapy systems. Background technique [0004] Clinical research and practice have shown that reducing pressure near a tissue site can enhance and accelerate new tissue growth at the tissue site. The applications of this phenomenon are numerous, but it has proven to be particularly beneficial in the treatment of wounds where the system is configured to remove fluid and infectious mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/00
CPCA61M2205/3344A61M2205/8212A61M1/73A61M1/75A61M1/74A61M1/96A61M2205/3334A61M1/90
Inventor 理查德·丹尼尔·约翰·库特哈德克里斯多佛·布赖恩·洛克
Owner 3M INNOVATIVE PROPERTIES COPMANY
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