Thoracic garment of positioning electromagnetic (EM) transducers and methods of using such thoracic garment

• US 10,307,102 B2
• Filed: 12/20/2012
• Issued: 06/04/2019
• Est. Priority Date: 12/20/2011
• Status: Active Grant

• Current Assignee: Sensible Medical Innovations Ltd.
• Original Assignee: Sensible Medical Innovations Ltd.
• Inventors: Saroka, Amir, Voshin, Leonid, Bar-Or, Jonathan, Levi, Tal, Karp, Ofer, Barash, Yiftach, Mizrahi, Nadav, Rappaport, Dan, Bergida, Shlomi, Bahat, Jonathan
• Primary Examiner(s): Chen, Tse W
• Assistant Examiner(s): Mehl, Patrick M
• Application Number:
  US14/366,704
• Publication Number:
  US 20140378812A1
• Time in Patent Office: 2,357 Days
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/02 Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/05 Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves impedance plethysmography A61B5/0295; measuring movement of the entire body or parts thereof A61B5/11; detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof A61B5/24
• CPC Class Codes: A61B 5/0507 using microwaves or terahertz waves
• CPC Class Codes: A61B 5/053 Measuring electrical impedance or conductance of a portion of the body
• CPC Class Codes: A61B 5/11 Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb for measuring pulse A61B5/02 ;A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721
• CPC Class Codes: A61B 5/145 Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissuemeasuring of blood pressure or blood flow A61B5/02; non-radiation detecting or locating of foreign bodies in blood A61B5/06
• CPC Class Codes: A61B 5/24 Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
• CPC Class Codes: A61B 5/6805 Vests
• CPC Class Codes: A61B 5/6823 Trunk, e.g., chest, back, abdomen, hip
• CPC Class Codes: A61B 5/6843 Monitoring or controlling sensor contact pressure
• CPC Class Codes: A61B 5/6844 Monitoring or controlling distance between sensor and tissue

Abstract

A garment for bringing an EM transducer to contact with a thoracic skin surface area of a wearer is disclosed. The garment comprises a thoracic garment having a EM transducer placement portion and a pressure applying element associated with the EM transducer placement portion for applying a pressure on an EM transducer secured in an associated the EM transducer placement portion when the thoracic garment is worn by a wearer so that the EM transducer applies a respective pressure on a thoracic skin surface area of the wearer.

Claims

1. A thoracic garment configured for bringing one or more antennas for transmitting and/or intercepting electromagnetic (EM) energy into contact with a thoracic skin surface area of a wearer, comprising:

a thoracic garment having a posterior piece, an anterior piece, and

a Y shape strap arrangement comprising two non-elastic straps each having an adjustable length and is not stretched by bodily movements of the wearer, said at least two non-elastic straps are adapted to maintain a location of a placement portion adapted to support at least one EM transducer for transmitting and/or intercepting EM energy in relation to a thoracic skin surface area of the wearer, said two non-elastic straps comprise;

an underarm strap adapted to be placed tightly under an armpit of the wearer and angling up from said posterior piece to a point on said anterior piece that is higher than said armpit,

and

a shoulder strap adapted to be supported around a shoulder and/or around the neck region of the wearer; and

a pressure applying element associated with said EM transducer for applying a pressure on the EM transducer when said thoracic garment is worn by said wearer so that said EM transducer is adapted to apply a respective pressure on a thoracic skin surface area of said wearer.

2. The thoracic garment of claim 1, wherein said pressure applying element comprises a strap configured to attach said thoracic garment to said wearer in one of a plurality of positions each applying a different of a plurality of pressures on said wearer.

3. The thoracic garment of claim 1, further comprising a controller adapted to control a control, said pressure adjusting element is adapted to increase said pressure at least until an anterior surface of said EM transducer is in full surface contact with a skin surface of said wearer, said pressure adjusting element is adapted to maintain said respective pressure during a sensing period.

4. The thoracic garment of claim 3, wherein said controller is set to allow transmitting of EM energy to or by said EM transducer when said pressure is within a predefined range.

5. The thoracic garment of claim 1, wherein said thoracic garment is associated with a controller set to adjust said pressure to maintain said respective pressure above a predetermined threshold during a period of measurements held using said EM transducer.

6. The thoracic garment of claim 1, wherein said respective pressure is between 150 and 500 millibar.

7. The thoracic garment of claim 1, wherein said pressure applying element comprises an extendable member positioned between an anchoring element and said EM transducer, said extendable member having an adjustable length which changes a distance between an anchoring surface and said EM transducer.

8. The thoracic garment of claim 7, wherein said adjustable length is between 2 centimeters (cm) and 5 cm.

9. The thoracic garment of claim 7, wherein said extendable member is an inflatable member and wherein said adjusting includes adjusting a fluid pressure within said inflatable member.

10. The thoracic garment of claim 1, wherein said EM transducer structure comprises an EM transducer tilt matching mechanism.

11. The thoracic garment of claim 1, further comprising a plurality of EM transducers and a plurality of extendable members each positioned between an EM transducer and an anchoring surface such that a different pressure may be applied by one extendible member on a respective EM transducer than is applied on another extendible member on a respective EM transducer.

12. The thoracic garment of claim 11, wherein the plurality of EM transducers are comprised in a single array.

13. The thoracic garment of claim 1, wherein said thoracic garment comprises a non-elastic thoracic portion having width of at least 3 centimeter and extends by no more than 60% of its length when attached to a load weighing 0.5 Kg.

14. A set of thoracic garments, each defined as claimed in claim 1 and each being adjustable to fit different body shape and size.

15. The thoracic garment of claim 1, further comprising an undressing detector for detecting an undressing event, said controller reduces said pressure in response to said undressing event.

16. The thoracic garment of claim 1, further comprising a plurality of fitting elements adapted to allow said wearer to tighten said thoracic garment on the body of said wearer and at least one release fastener adapted to allow said wearer to undress said thoracic garment without refitting said plurality of fitting elements.

17. A thoracic garment for positioning at least one EM transducer on a body of a wearer comprising:

a thoracic garment having a posterior piece, an anterior piece, and a Y shape strap arrangement comprising two non-elastic straps each having an adjustable length and is not stretched by bodily movements of the wearer, said two non-elastic straps are adapted to maintain a location of a placement portion adapted to support at least one EM transducer for transmitting and/or intercepting EM energy in relation to a thoracic skin surface area of the wearer, said two non-elastic straps comprise;

an underarm strap adapted to be placed tightly under an armpit of the wearer and angling up from said posterior piece to a point on said anterior piece that is higher than said armpit, and

a shoulder strap adapted to be supported around a shoulder and/or around the neck region of the wearer,

wherein said thoracic garment is sized and shaped to position said at least one EM transducer at a predetermined location above a skin surface of said wearer; and

a controller adapted to increase pressure of said at least one EM transducer on said skin surface after the thoracic garment is worn and reduces said pressure when said wearer undresses said thoracic garment;

wherein when said pressure is reduced a physically impaired wearer can self-dress the thoracic garment.

18. The thoracic garment of claim 17, further comprising an EM transducer secured in said EM transducer placement portion.

19. The thoracic garment of claim 18, wherein said EM placement portion is associated with an EM transducer moving mechanism for moving an EM transducer or a portion thereof within the EM transducer placement portion.

20. The thoracic garment of claim 18, wherein said EM transducer is one of a plurality of EM transducers located in a plurality of EM transducer placement portions and the thoracic garment comprises a controller for selecting one or more of said plurality of EM transducers according to the position of the EM transducers respective a body of a wearer.

21. The thoracic garment of claim 17, wherein the thoracic garment portion is adjustable to fit a body shape and size of a wearer.

22. The thoracic garment of claim 17, wherein when the thoracic garment portion is worn by a wearer to whom it was fitted, and at least one EM transducer is placed in said EM transducer placement portion, the at least one EM transducer is placed within ±

2 cm from the predetermined location above the skin of the wearer for at least 50% of repeat wearing sessions without refitting.

23. A thoracic garment for bringing an EM transducer into contact with a thoracic skin surface area of a wearer, comprising:

a thoracic garment having a posterior piece, an anterior piece, and a Y shape strap arrangement comprising two non-elastic straps each having an adjustable length and is not stretched by bodily movements of the wearer, said two non-elastic straps are adapted to maintain a location of a placement portion adapted to support at least one EM transducer for transmitting and/or intercepting EM energy in relation to a thoracic skin surface area of the wearer, said two non-elastic straps comprise;

an underarm strap adapted to be placed tightly under an armpit of the wearer and angling up from said posterior piece to a point on said anterior piece that is higher than said armpit, and

a shoulder strap adapted to be supported around a shoulder and/or around the neck region of the wearer; and

a pressure applying element associated with said EM transducer for applying a pressure on the EM transducer when said thoracic garment is worn by said wearer so that said EM transducer is adapted to apply a respective pressure on a thoracic skin surface area of said wearer;

wherein said EM transducer placement portion is set to be placed above the skin surface of a posterior thoracic skin surface area such that at least 30% of an effective EM capture and/or transmission area of an EM transducer positioned in the EM transducer placement portion will be located between 2 cm and 9 cm to a side of a central axis along the spine of said wearer, and between about 8 cm and about 30 cm below the upper end of the vertebra prominens of said wearer;

wherein when worn said wearer can recline and sit up freely while an effective EM capture and/or transmission area of said EM transducer is not displaced by more than 2 centimeters (cm).