Open access sleeve for heated fluid units

• US 8,523,082 B2
• Filed: 12/20/2010
• Issued: 09/03/2013
• Est. Priority Date: 08/24/2004
• Status: Active Grant

• Current Assignee: C Change Surgical LLC
• Original Assignee: C Change Surgical LLC
• Inventors: Kammer, Patrick, Rackers, Kevin J., Martel, Mark, Cassidy, Todd
• Primary Examiner(s): NORMAN, MARC E
• Application Number:
  US12/972,629
• Publication Number:
  US 20110114629A1
• Time in Patent Office: 988 Days
• Field of Search: 236/1.C, 219/430, 219/433, 219/435, 219/438, 219476-480, 604/114, 604/291
• US Class Current: 236/1.C
• CPC Class Codes: A61B 2050/0018 Electric heating
• CPC Class Codes: A61M 5/445 the media being heated in the reservoir, e.g. warming bloodbags
• CPC Class Codes: G05D 23/1909 whose output amplitude can only take two discrete values
• CPC Class Codes: G05D 23/1931 to control the temperature of one space
• CPC Class Codes: G05D 23/20 with sensing elements having variation of electric or magnetic properties with change of temperature G05D23/13 takes precedence
• CPC Class Codes: G05D 23/22 the sensing element being a thermocouple

Abstract

A series of implementations of open access sleeves for holding one or more closed containers of sterile fluid for use in medical procedures are disclosed. The open access sleeves may be adapted to provide heat to maintain the containers of sterile fluid above the ambient air temperature of the room. The provision of heat may be controlled by a control system. The control system may use a temperature measurement device to obtain a temperature representative of the container of sterile fluid and of the sterile fluid in the container. The access sleeve may be included in a device for maintaining an open volume of sterile fluid within a range of a target temperature to maintain the closed containers of sterile fluid at a temperature near target temperature for open volume of sterile fluid.

Claims

1. A method of maintaining a container of sterile fluid within a range of a target temperature, the method comprising:

placing a container of sterile fluid in an open access sleeve in a position where a temperature of the container of sterile fluid can be ascertained by a temperature measuring device connected to a control system, the control system used to selectively apply power to a heating unit to increase the temperature of the container of sterile fluid to a target temperature;

wherein the step of placing the container of sterile fluid in the open access sleeve is performed by placing the container of sterile fluid on its side in an elongated cavity with an open front and the temperature measuring device measures a temperature representative of a portion of a side of the container of sterile fluid in contact with a portion of the open access sleeve;

wherein the open access sleeve is sloped from a distal end of the access sleeve to the open front of the access sleeve such that the container of sterile fluid rests against a protrusion near the open front of the access sleeve;

wherein a temperature indicator indicates that the temperature of the container of sterile fluid is within the range of the target temperature for the sterile fluid to be used;

wherein an open basin containing sterile fluid maintained within a range of a set point temperature contains at least a portion of sterile fluid from the container of sterile fluid in the access sleeve; and

wherein a draped cavity containing sterile fluid maintained within a range of a set point temperature contains at least a portion of sterile fluid from the container of sterile fluid in the access sleeve.

2. The method of maintaining a container of sterile fluid within a range of a target temperature of claim 1 further including the step of adjusting the target temperature through providing input to the control system.

3. The method of maintaining a container of sterile fluid within a range of a target temperature of claim 1 where the temperature indicator is a digital indication of the temperature measured by the temperature measuring device.

4. The method of maintaining a container of sterile fluid within a range of a target temperature of claim 1 where the temperature indicator is a light.