Infusion hose for an infusion device with a bubble detector
First Claim
1. An infusion hose for an infusion device having a bubble detector, in which a column of liquid is maintained permanently at least in one section of the infusion hose and in which adjacent to this section is arranged ultrasound detector equipment incorporating an ultrasound transmitter and receiver positioned so that an acoustic signal from the transmitter passes diametrically through the column of liquid in the section of infusion hose to the receiver, the acoustic signal being used to detect inclusions of air in the column of liquid, characterized in that the section of infusion hose includes (a) substantially diametrically opposed contacts (3, 6;
- 13,
16) for making acoustic contact with the ultrasound transmitter and receiver, respectively, and (b) acoustic dampers (2, 4;
12,
14) for insulating the contacts (3, 6;
13,
16) from the surrounding area of the section, wherein the dampers (2, 4;
12,
14) each include an area (2;
12) of lesser mass surrounding the respective contact (3, 6;
13,
16) and an area (4;
14) of increased mass surrounding the area of lesser mass.
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Accused Products
Abstract
On an infusion hose for an infusion device on which a column of liquid is permanently maintained at least in one section of the infusion hose and on which adjacent to that section there is arranged ultrasound detector equipment the acoustic signal from which passes through the column of liquid and is used to detect inclusions of air in the column of liquid, the section of the infusion hose, with reference to the said infusion hose, incorporates substantially diametrically opposed contacts (3, 6) for making contact with the ultrasound transmitter and receiver, and the contacts (3, 6) are insulated from the surrounding region of the section by acoustic filters and/or dampers (2, 4).
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Citations
2 Claims
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1. An infusion hose for an infusion device having a bubble detector, in which a column of liquid is maintained permanently at least in one section of the infusion hose and in which adjacent to this section is arranged ultrasound detector equipment incorporating an ultrasound transmitter and receiver positioned so that an acoustic signal from the transmitter passes diametrically through the column of liquid in the section of infusion hose to the receiver, the acoustic signal being used to detect inclusions of air in the column of liquid, characterized in that the section of infusion hose includes (a) substantially diametrically opposed contacts (3, 6;
- 13,
16) for making acoustic contact with the ultrasound transmitter and receiver, respectively, and (b) acoustic dampers (2, 4;
12,
14) for insulating the contacts (3, 6;
13,
16) from the surrounding area of the section, wherein the dampers (2, 4;
12,
14) each include an area (2;
12) of lesser mass surrounding the respective contact (3, 6;
13,
16) and an area (4;
14) of increased mass surrounding the area of lesser mass. - View Dependent Claims (2)
- 13,
Specification
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- Resources
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Current AssigneeFritz Giebler
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Original AssigneeFritz Giebler
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InventorsGiebler, Fritz
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Primary Examiner(s)Williams, Hezron E.
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Assistant Examiner(s)Politzer, Jay L.
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Application NumberUS08/702,540Time in Patent Office748 DaysField of Search73/19.03, 73/861.04, 340/621, 340/632, 604/65, 604/122US Class Current73/19.03CPC Class CodesA61M 5/365 Air detectors A61M5/1684 ta...
