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Heat exchanger garment

a technology of heat exchanger and garment, which is applied in the field of heat exchanger garment, can solve the problems of excessive heat loss, increased risk of infection, and increased risk of infection, and achieve the effects of improving patient comfort, low cost, and being soft to touch

Inactive Publication Date: 2003-04-10
M T R E ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The heat exchanger provides effective temperature control during surgeries by ensuring consistent heat transfer across the body, maintaining patient comfort and flexibility, while being cost-effective and resistant to internal pressure, suitable for both humans and animals.

Problems solved by technology

Furthermore, under general anesthesia, the natural physiological mechanisms which operate to maintain a body temperature may fail, and the problem becomes particularly acute in cases where exposed internal body organs come into contact with the ambient air which results in excessive heat loss.
The problem is further aggravated by the fact that operation rooms are very often heavily cooled.
Similarly as human subjects, the problem of controlling body temperature is also experienced during surgical procedures performed on animals.
Overall, controlling the body temperature is one of the serious-problems facing the medical staff when performing operations.

Method used

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Examples

Experimental program
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Embodiment Construction

[0032] Reference is first being made to FIG. 1 showing a planar view of a garment generally designated 20 of which a part marked "II" in FIG. 1 is shown in a more enlarged view in FIG. 2A and of which a cross-section through lines B-B of FIG. 2A is shown in FIG. 2B. As can be seen in FIGS. 2A and 2B, the garment has an internal, body-facing layer 22 and an external layer 24 which define between them a fluid-tight space 26. Each of the layers 22, 24 is made from a thermoplastic material with a heat weldable, space-lining face 28, 30 (see FIG. 2B). The two layers are welded to one another in fluid tight manner at the edges 32.

[0033] The two layers 22, 24 are welded to one another at a plurality of weld points 40 seen in FIGS. 2A and 2B.

[0034] The weld points 40 cause a flow disturbance and consequently the flow of liquid through the garment (see description below) becomes uniform throughout the entire space of the flow path (see below).

[0035] The garment is symmetrical along a longitu...

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Abstract

A heat exchanger for use in controlling subject's body temperature during a medical procedure comprises a flexible garment adapted for enveloping portions of the subject's body surface with dedicated sections for enveloping different body parts. Defined within the garment is a continuous, fluid tight space, wherein a flow path for heat-control fluid is defined between fluid inlet and fluid outlet. The inner faces of the garment's internal and external layers are made of a heat-weldable material and are point-welded to one another at a plurality of locations throughout the garment with a distance between two adjacent points being between about 8 to about 20 mm.

Description

[0001] The present invention relates to a heat exchanger which is intended to be applied onto a subject's body for controlling the subject's body temperature during medical procedure.BACKGROUND OF THE INVENTION AND PRIOR ART[0002] There are a variety of medical procedures in which a subject's body temperature has to be controlled. For example, during open heart surgery, the body temperature has to be controllably reduced to about 35.degree. C. and then at the end of the operation increased back to normal body temperature. Furthermore, under general anesthesia, the natural physiological mechanisms which operate to maintain a body temperature may fail, and the problem becomes particularly acute in cases where exposed internal body organs come into contact with the ambient air which results in excessive heat loss. The problem is further aggravated by the fact that operation rooms are very often heavily cooled. Following surgical procedure, it may take some time until the body acquires ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61F2/00A61F7/00A61F7/02
CPCA61F7/02A61F2007/0288A61F2007/0054A61F2007/0001
Inventor KUSHNIR, IGAL
Owner M T R E ADVANCED TECH
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