# US 9,517,032 B2 · Sensor over-mold shape > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,517,032 B2 - Document ID: US9517032B2 - Status: Granted - Kind: B2 - Application number: 13/362,371 - Filed: 2012-01-31 - Published: 2013-08-01 - Granted: 2016-12-13 - Earliest claimed: 2012-01-31 - Assignees: Medtronic, Inc. - Applicants: Daniel S. Flo; James K. Carney; Kamal Deep Mothilal; Jon D. Schell - Inventors: Daniel S. Flo; James K. Carney; Kamal Deep Mothilal; Jon D. Schell - Web page: https://patentgrep.com/patent/US9517032B2 ## CPC - A61B 5/6861: {Capsules, e.g. for swallowing or implanting} - A61B 5/0215: by means inserted into the body - A61B 5/6876: {Blood vessel} - A61B 2560/0406: specially shaped apparatus housings - A61B 2562/0247: Pressure sensors - A61B 2562/162: Capsule shaped sensor housings, e.g. for swallowing or implantation - A61B 2562/18: Shielding or protection of sensors from environmental influences, e.g. protection from mechanical damage - G01L 19/146: {using flexible element between the transducer and the support} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G01L: MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G) ## Abstract An implantable sensor module and medical device includes a housing having an inner shell having a thickness extending between an inner wall and an outer wall and an outer layer, wherein the inner shell and the outer layer form a substantially flat portion. A shoulder extends adjacent to a diaphragm to extend the outer layer laterally away from a central medial line extending between edges of the diaphragm. A recess portion is formed between the diaphragm and an inner side of the outer layer, and an over-fill channel is formed by the outer layer extending through the outer layer from an opening formed at the outer wall to an opening formed along the inner side of the outer layer extending along the substantially flat portion. ## Claims ### Claim 1 An implantable medical device, comprising: a housing having an outer wall and comprising an inner shell and an outer layer formed to extend over and enclose the inner shell to form the outer wall, the inner shell having a thickness extending between an inner wall of the inner shell and an outer wall of the inner shell, the outer layer having an inner side engaged against the outer wall of the inner shell and having a thickness extending between the inner side and the outer wall of the housing, wherein the inner shell and the outer layer form a flat portion; a flexible diaphragm formed within the inner shell along the flat portion and extending between a first edge and a second edge; a shoulder extending adjacent to the first edge that extends the outer layer laterally away from a central medial line extending between the first and second edges of the diaphragm; a recess portion formed between the diaphragm and the inner side of the outer layer; and an over-fill channel formed by the outer layer and extending through the outer layer from an opening formed at the outer wall to an opening formed along the inner side of the outer layer extending along the flat portion. ### Claim 2 (depends on 1) The device of claim 1, wherein the shoulder is formed by one or both of the inner shell and the outer layer to have a thickness to reduce contact pressure along the first edge and the second edge of the diaphragm to less than a predetermined percentage of a maximum contact pressure along the central median line. ### Claim 3 (depends on 2) The device of claim 2, further comprising a second shoulder extending adjacent to the second edge of the diaphragm that extends the outer layer laterally away from the central medial line extending between the first and second edges of the diaphragm. ### Claim 4 (depends on 1) The device of claim 1, wherein the shoulder comprises a flange extending laterally outward from the outer wall of the housing. ### Claim 5 (depends on 4) The device of claim 4, wherein housing has a rectangular cross-section comprising a top side and a bottom side, the top side corresponding to the flat portion formed by the inner shell and the outer layer. ### Claim 6 (depends on 1) The device of claim 1, wherein the thickness of the outer layer along the shoulder is greater than the thickness of the outer layer along a portion of the outer wall of the housing opposite the flat portion. ### Claim 7 (depends on 6) The device of claim 6, wherein the thickness of the inner shell along the shoulder is approximately equal to the thickness of the inner shell along the portion of the outer wall of the housing opposite the flat portion. ### Claim 8 (depends on 1) The device of claim 1, wherein the thickness of the inner shell along the shoulder is greater than the thickness of the inner shell along a portion of the outer wall of the housing opposite the flat portion. ### Claim 9 (depends on 8) The device of claim 8, wherein the thickness of the outer layer along the shoulder is approximately equal to the thickness of the outer layer along the portion of the outer wall of the housing opposite the flat portion. ### Claim 10 (depends on 1) The device of claim 1, wherein the thickness of the outer layer along the shoulder is greater than the thickness of the outer layer along a portion of the outer wall of the housing opposite the flat portion, and the thickness of the inner shell along the shoulder is greater than the thickness of the inner shell along the portion of the outer wall of the housing opposite the flat portion. ### Claim 11 (depends on 10) The device of claim 10, wherein the thickness of the outer layer along the shoulder is equal to the thickness of the inner shell along the shoulder. ### Claim 12 (depends on 1) The device of claim 1, wherein the over-fill channel extends through the shoulder. ### Claim 13 An implantable medical device lead, comprising: an elongated lead body; a housing having an outer wall and comprising an inner shell and an outer layer formed to extend over and enclose the inner shell to form the outer wall, the inner shell having a thickness extending between an inner wall of the inner shell and an outer wall of the inner shell, the outer layer having an inner side engaged against the outer wall of the inner shell and having a thickness extending between the inner side and the outer wall of the housing, wherein the inner shell and the outer layer form a flat portion; a flexible diaphragm formed within the inner shell along the flat portion and extending between a first edge and a second edge; a shoulder extending adjacent to the first edge that extends the outer layer laterally away from a central medial line extending between the first and second edges of the diaphragm; a recess portion formed between the diaphragm and the inner side of the outer layer; and an over-fill channel formed by the outer layer and extending through the outer layer from an opening formed at the outer wall to an opening formed along the inner side of the outer layer extending along the flat portion. ### Claim 14 (depends on 13) The implantable medical device lead of claim 13, wherein the shoulder is formed by one or both of the inner shell and the outer layer to have a thickness to reduce contact pressure along the first edge and the second edge of the diaphragm to less than a predetermined percentage of a maximum contact pressure along the central median line. ### Claim 15 (depends on 14) The implantable medical device lead of claim 14, further comprising a second shoulder extending adjacent to the second edge of the diaphragm that extends the outer layer laterally away from the central medial line extending between the first and second edges of the diaphragm. ### Claim 16 (depends on 13) The implantable medical device lead of claim 13, wherein the shoulder comprises a flange extending laterally outward from the outer wall of the housing. ### Claim 17 (depends on 16) The implantable medical device lead of claim 16, wherein housing has a rectangular cross-section comprising a top side and a bottom side, the top side corresponding to the flat portion formed by the inner shell and the outer layer. ### Claim 18 (depends on 13) The implantable medical device lead of claim 13, wherein the thickness of the outer layer along the shoulder is greater than the thickness of the outer layer along a portion of the outer wall of the housing opposite the flat portion. ### Claim 19 (depends on 18) The implantable medical device lead of claim 18, wherein the thickness of the inner shell along the shoulder is approximately equal to the thickness of the inner shell along the portion of the outer wall of the housing opposite the flat portion. ### Claim 20 (depends on 13) The implantable medical device lead of claim 13, wherein the thickness of the inner shell along the shoulder is greater than the thickness of the inner shell along a portion of the outer wall of the housing opposite the flat portion. ### Claim 21 (depends on 20) The implantable medical device lead of claim 20, wherein the thickness of the outer layer along the shoulder is approximately equal to the thickness of the outer layer along the portion of the outer wall of the housing opposite the flat portion. ### Claim 22 (depends on 13) The implantable medical device lead of claim 13, wherein the thickness of the outer layer along the shoulder is greater than the thickness of the outer layer along a portion of the outer wall of the housing opposite the flat portion, and the thickness of the inner shell along the shoulder is greater than the thickness of the inner shell along the portion of the outer wall of the housing opposite the flat portion. ### Claim 23 (depends on 22) The implantable medical device lead of claim 22, wherein the thickness of the outer layer along the shoulder is equal to the thickness of the inner shell along the shoulder. ### Claim 24 (depends on 13) The implantable medical device lead of claim 13, wherein the over-fill channel extends through the shoulder.