Systems and methods for collecting fluid from a subject
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-005/15
A61B-005/151
A61B-005/145
출원번호
US-0456394
(2012-04-26)
등록번호
US-9295417
(2016-03-29)
발명자
/ 주소
Haghgooie, Ramin
Chickering, III, Donald E.
Davis, Shawn
Michelman, Mark
Chu, Li Yang
출원인 / 주소
Seventh Sense Biosystems, Inc.
대리인 / 주소
Wolf, Greenfield & Sacks, P.C.
인용정보
피인용 횟수 :
7인용 특허 :
285
초록▼
Systems and methods for delivering to and/or receiving fluids or other materials, such as blood or interstitial fluid, from subjects, e.g., from the skin. Beading disruptors and/or capillaries may be used for facilitating the transport of fluids from a subject into a device. Beading disruptors may d
Systems and methods for delivering to and/or receiving fluids or other materials, such as blood or interstitial fluid, from subjects, e.g., from the skin. Beading disruptors and/or capillaries may be used for facilitating the transport of fluids from a subject into a device. Beading disruptors may disrupt the “pooling” of bodily fluids such as blood on the surface of the skin and help influence flow in a desired way. A capillary may conduct flow of fluid in the device, e.g., to an inlet of a channel or other flow path that leads to a storage chamber. A vacuum (reduced pressure relative to ambient) may be used to receive fluid into the device, e.g., by using relatively low pressure to draw fluid into the inlet of a channel leading to a storage chamber. The vacuum source may be part of the device.
대표청구항▼
1. A device for receiving bodily fluid from a subject, the device comprising: a fluid transporter including a flow activator having one or more needles, the fluid transporter further including an opening into the device and a recess extending upwardly from the opening such that the opening is at a l
1. A device for receiving bodily fluid from a subject, the device comprising: a fluid transporter including a flow activator having one or more needles, the fluid transporter further including an opening into the device and a recess extending upwardly from the opening such that the opening is at a lowermost portion of the recess, the opening and the recess being in fluid communication, wherein the opening is arranged to receive bodily fluid from a subject and the recess has a substantially vertical inner surface defining an internal width of the recess;a channel having an inlet in fluid communication with the fluid transporter; anda beading disruptor located with respect to the fluid transporter to interact with fluid entering the opening of the fluid transporter and influence flow of the fluid to the inlet, the beading disruptor comprising a plurality of protrusions cantilevered from the substantially vertical inner surface of the recess into the recess,wherein the protrusions are spaced apart from one another,and wherein the protrusions are spaced apart from and positioned above the opening into the device such that a portion of the substantially vertical inner surface of the recess is positioned below the protrusions. 2. The device of claim 1, wherein a portion of at least one of the plurality of protrusions is arranged to move away from the opening when contacted by a skin surface entering the opening. 3. The device of claim 1, wherein the beading disruptor is arranged to resist movement of a skin surface into the recess. 4. The device of claim 1, wherein the fluid transporter includes a capillary structure adjacent the beading disruptor and arranged to conduct fluid to the inlet. 5. The device of claim 4, wherein the capillary structure is fully open to the recess. 6. The device of claim 4, wherein the capillary structure is oriented in a plane that is substantially parallel to the opening. 7. The device of claim 1, wherein at least one of the plurality of protrusions is rigid and resists upward movement. 8. The device of claim 1, wherein the beading disruptor exhibits rotational symmetry. 9. The device of claim 1, wherein the recess has a volume of no more than about 2 ml. 10. The device of claim 1, further comprising a vacuum source. 11. The device of claim 10, further comprising a seal arranged to control a fluid communication pathway between the vacuum source and the inlet. 12. The device of claim 10, wherein the vacuum source comprises a pre-packaged vacuum source having a pressure less than atmospheric pressure prior to the point at which the device is used by a subject or practitioner. 13. The device of claim 1, wherein the at least one protrusion has first and second ends, a width and a length extending from the first end to the second end, wherein a ratio of the width of the at least one protrusion at the first end to the length is greater than about 1. 14. The device of claim 1, wherein the device has a largest lateral dimension of no more than about 5 cm. 15. The device of claim 1, wherein the device has a mass of no more than about 25 g, absent receiving of a bodily fluid from the skin of the subject into the device.
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