# US 2014/0155710 A1 · Implantable sensor enclosure with thin sidewalls

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- Number: US 2014/0155710 A1
- Document ID: US20140155710A1
- Status: Published application
- Kind: A1
- Application number: 14/129,725
- Filed: 2012-06-29
- Published: 2014-06-05
- Earliest claimed: 2011-06-30
- Assignees: Endotronix, Inc.
- Applicants: Endotronix, Inc.
- Inventors: Harry D. Rowland; Michael Nagy
- Web page: https://patentgrep.com/patent/US20140155710A1

## CPC

- A61B 5/076: {Permanent implantation}
- A61B 5/0215: by means inserted into the body
- A61B 5/6861: {Capsules, e.g. for swallowing or implanting}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A wireless circuit includes a housing, such as a hermetic housing, and at least one antenna coil wound about a coil axis within the housing. The coil axis may be substantially parallel to at least one wall of the housing, wherein the wall parallel to the coil axis is substantially thinner than other walls of the housing.

## Claims

### Claim 1

A wireless circuit comprising:
a housing;
at least one antenna having an axis and positioned within said housing;
wherein said axis is substantially parallel to at least one wall of said housing; and
wherein said at least one wall is thinner than at least one wall of said housing that is not substantially parallel to said coil axis.

### Claim 2 (depends on 1)

The wireless circuit of claim 1, wherein said housing has length, width and height dimensions, and wherein the length is greater than the housing's width and height dimensions.

### Claim 3

(canceled)

### Claim 4 (depends on 1)

The wireless circuit of claim 1, wherein said wireless circuit is configured to measure pressure.

### Claim 5 (depends on 4)

The wireless circuit of claim 4, wherein said substantially thinner wall is configured to deform in proportion to pressure exerted on it.

### Claim 6 (depends on 1)

The wireless circuit of claim 1, wherein said wireless circuit contains a battery.

### Claim 7 (depends on 1)

The wireless circuit of claim 1, wherein said at least one wall which is substantially parallel to said coil axis comprises a material selected from a group including: sapphire, fused silica, quartz, glass, ceramic, titanium, alumina, silicon, diamond, and polymer.

### Claim 8 (depends on 1)

The wireless circuit of claim 1, wherein said at least one wall which is substantially parallel to said coil axis is created by forming a cavity in at least one part of said housing prior to bonding said at least one part to other parts of said housing.

### Claim 9 (depends on 1)

The wireless circuit of claim 1, wherein said at least one wall which is substantially parallel to said coil axis is created by bonding a material to said housing.

### Claim 10 (depends on 1)

The wireless circuit of claim 1, wherein said at least one wall which is substantially parallel to said coil axis is created by thinning at least a portion of said wall after parts of said housing have been bonded together.

### Claim 11 (depends on 1)

The wireless circuit of claim 1, wherein portions of said housing are bonded together by a process selected from a group including: laser welding, glass frit bonding, laser frit welding, compression bonding, anodic bonding, eutectic bonding, brazing, or soldering.

### Claim 12

(canceled)

### Claim 13 (depends on 1)

The wireless circuit of claim 1, wherein a portion of said wireless circuit serves as one of the walls of said housing that is not substantially parallel to said coil axis.

### Claim 14 (depends on 1)

The wireless circuit of claim 1, wherein a portion of said wireless circuit is disposed on one of the walls of said housing that is not substantially parallel to said coil axis.

### Claim 15 (depends on 1)

The wireless circuit of claim 1, wherein a portion of said wireless circuit is disposed in a portion of said housing separate from the portion that contains said antenna coil.

### Claim 16 (depends on 1)

The wireless circuit of claim 1, wherein said housing is filled with a substance selected from a group including: liquid, gel, vacuum, inert gas, or air.

### Claim at position 17

17-21. (canceled)

### Claim 22 (depends on 1)

The wireless circuit of claim 1, wherein said antenna having an axis includes a coil.