JP6902681B2 - 圧力センサ - Google Patents
圧力センサ Download PDFInfo
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- JP6902681B2 JP6902681B2 JP2021512965A JP2021512965A JP6902681B2 JP 6902681 B2 JP6902681 B2 JP 6902681B2 JP 2021512965 A JP2021512965 A JP 2021512965A JP 2021512965 A JP2021512965 A JP 2021512965A JP 6902681 B2 JP6902681 B2 JP 6902681B2
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- Prior art keywords
- pressure sensor
- sensor according
- hole
- lead wire
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910001316 Ag alloy Inorganic materials 0.000 claims description 2
- YCKOAAUKSGOOJH-UHFFFAOYSA-N copper silver Chemical compound [Cu].[Ag].[Ag] YCKOAAUKSGOOJH-UHFFFAOYSA-N 0.000 claims description 2
- 239000000560 biocompatible material Substances 0.000 claims 1
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
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- 208000031481 Pathologic Constriction Diseases 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910017770 Cu—Ag Inorganic materials 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 210000000683 abdominal cavity Anatomy 0.000 description 1
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- 210000003238 esophagus Anatomy 0.000 description 1
- -1 for example Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
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- 238000005468 ion implantation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
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- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
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- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
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- 238000003860 storage Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 210000003932 urinary bladder Anatomy 0.000 description 1
- 210000004291 uterus Anatomy 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
- G01L19/148—Details about the circuit board integration, e.g. integrated with the diaphragm surface or encapsulation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
- G01L19/147—Details about the mounting of the sensor to support or covering means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—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
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/0215—Measuring pressure in heart or blood vessels by means inserted into the body
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0061—Electrical connection means
- G01L19/0084—Electrical connection means to the outside of the housing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0051—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance
- G01L9/0052—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance of piezoresistive elements
- G01L9/0054—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance of piezoresistive elements integral with a semiconducting diaphragm
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Pathology (AREA)
- Medical Informatics (AREA)
- Physiology (AREA)
- Analytical Chemistry (AREA)
- Biophysics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measuring Fluid Pressure (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Description
しかしながら、従来の圧力センサの構成では、上記のような要望を満たす圧力センサの実現は困難であるという課題が生じている。
また、前記貫通孔には、前記圧力センサ素子に電気的に接続されるリード線における絶縁被覆が除去された導体芯線部が通っている。
このようなセンサ本体の寸法にすることで外径360μm内径300μmのガイドワイヤに容易に挿入することが可能となる。
なお、センサ本体2の形状は、四角柱状に限らず、多角柱状であればよく、また、円柱状であってもよい。格別その形状が限定されるものではない。
次に、図5を参照して、上記圧力センサ1が組み込まれたガイドワイヤ7を備えるシステムについて説明する。
以上のように本実施形態によれば、小型であって、絶縁性を確保し、信頼性の高い圧力センサ1を提供することができる。
2・・・・・センサ本体
3・・・・・リード線
31・・・・絶縁被覆
32・・・・導体芯線部
4・・・・・接続端子部
41・・・・コネクタ端子
5・・・・・接着材
6・・・・・絶縁被覆
7・・・・・ガイドワイヤ
21・・・・圧力センサ素子
22・・・・空洞部
23・・・・ダイヤフラム
24・・・・貫通孔
24a・・・絶縁層
25・・・・導電層
26・・・・電極層
27・・・・電極
27a・・・侵入部
100・・・システム
101・・・制御装置
Amp・・・増幅器
Claims (14)
- 半導体材料によって作製されているセンサ本体と、
前記センサ本体の一面側に設けられた圧力センサ素子と、
前記センサ本体の一面側から他面側へ向かって形成され、前記圧力センサ素子に電気的に接続されるリード線が通る貫通孔と、
前記貫通孔の内壁に形成された絶縁層と、
を具備することを特徴とする圧力センサ。 - 前記貫通孔は、少なくとも2つ形成されていることを特徴とする請求項1に記載の圧力センサ。
- 前記貫通孔には、前記圧力センサ素子に電気的に接続されるリード線における絶縁被覆が除去された導体芯線部が通っていることを特徴とする請求項1又は請求項2に記載の圧力センサ。
- 前記圧力センサ素子に電気的に接続されるリード線は、ろう材により構成された電極によって接続されていることを特徴とする請求項3に記載の圧力センサ。
- 前記電極は、低融点金属であることを特徴とする請求項4に記載の圧力センサ。
- 前記電極は、貫通孔の内部に入り込んで侵入部が形成されていることを特徴とする請求項4又は請求項5に記載の圧力センサ。
- 前記貫通孔を通る導体芯線部の先端部は、直線状であることを特徴とする請求項3乃至請求項6のいずれか一項に記載の圧力センサ。
- 前記リード線における導体芯線は、銅銀合金線から形成されていることを特徴とする請求項3乃至請求項7のいずれか一項に記載の圧力センサ。
- 前記貫通孔の一面側の周囲及び前記貫通孔の内壁側へ延出して電極層が形成されていることを特徴とする請求項1乃至請求項8のいずれか一項に記載の圧力センサ。
- 前記センサ本体の外表面は、絶縁被覆されていることを特徴とする請求項1乃至請求項9のいずれか一項に記載の圧力センサ。
- 前記絶縁被覆は、可撓性を有していることを特徴とする請求項10に記載の圧力センサ。
- 前記絶縁被覆には、生体適合性を有する材料が用いられていることを特徴とする請求項10又は請求項11に記載の圧力センサ。
- 前記センサ本体は、ブリッジ接続されてブリッジ回路が構成されていることを特徴とする請求項1乃至請求項12のいずれか一項に記載の圧力センサ。
- 前記ブリッジ回路の出力端には、増幅器が接続されていることを特徴とする請求項13に記載の圧力センサ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019132612 | 2019-07-18 | ||
JP2019132612 | 2019-07-18 | ||
PCT/JP2020/025249 WO2021010139A1 (ja) | 2019-07-18 | 2020-06-26 | 圧力センサ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP6902681B2 true JP6902681B2 (ja) | 2021-07-14 |
JPWO2021010139A1 JPWO2021010139A1 (ja) | 2021-09-13 |
Family
ID=74210635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021512965A Active JP6902681B2 (ja) | 2019-07-18 | 2020-06-26 | 圧力センサ |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220276110A1 (ja) |
JP (1) | JP6902681B2 (ja) |
CN (1) | CN114041046A (ja) |
DE (1) | DE112020003422T5 (ja) |
WO (1) | WO2021010139A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220291059A1 (en) * | 2019-07-24 | 2022-09-15 | Semitec Corporation | Contact force sensor and device provided with contact force sensor |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE793922A (fr) * | 1972-01-12 | 1973-07-11 | Philips Nv | Dispositif de mesure de la pression de liquides ou de gaz |
JPS61168969A (ja) | 1985-01-22 | 1986-07-30 | Fuji Electric Co Ltd | 半導体圧力センサ |
EP1658808A1 (en) | 1994-09-02 | 2006-05-24 | Volcano Corporation | Microminiature pressure sensor and guidewire using the same |
JP3737554B2 (ja) | 1996-01-09 | 2006-01-18 | 株式会社東海理化電機製作所 | センサ機能を備えたカテーテル |
US9289137B2 (en) | 2007-09-28 | 2016-03-22 | Volcano Corporation | Intravascular pressure devices incorporating sensors manufactured using deep reactive ion etching |
JP2015056577A (ja) * | 2013-09-13 | 2015-03-23 | セイコーエプソン株式会社 | 回路基板の製造方法、回路基板、電子デバイス、電子機器および移動体 |
US10512449B2 (en) * | 2014-09-19 | 2019-12-24 | Volcano Corporation | Intravascular device for vessel measurement and associated systems, devices, and methods |
JP2016161410A (ja) * | 2015-03-02 | 2016-09-05 | 株式会社東芝 | 歪検出素子、圧力センサ及びマイクロフォン |
GB2541368A (en) * | 2015-07-16 | 2017-02-22 | Diasolve Ltd | Fluid delivery apparatus |
CN114533007B (zh) * | 2016-08-31 | 2024-05-24 | 尼普洛株式会社 | 导丝和制造导丝的方法 |
JP6866779B2 (ja) | 2016-08-31 | 2021-04-28 | ニプロ株式会社 | 圧力測定装置 |
CN106361312A (zh) * | 2016-10-08 | 2017-02-01 | 苏州亘科医疗科技有限公司 | 一种血管内血压测量导丝 |
-
2020
- 2020-06-26 DE DE112020003422.4T patent/DE112020003422T5/de active Pending
- 2020-06-26 US US17/625,776 patent/US20220276110A1/en active Pending
- 2020-06-26 CN CN202080048770.7A patent/CN114041046A/zh active Pending
- 2020-06-26 WO PCT/JP2020/025249 patent/WO2021010139A1/ja active Application Filing
- 2020-06-26 JP JP2021512965A patent/JP6902681B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
CN114041046A (zh) | 2022-02-11 |
US20220276110A1 (en) | 2022-09-01 |
WO2021010139A1 (ja) | 2021-01-21 |
JPWO2021010139A1 (ja) | 2021-09-13 |
DE112020003422T5 (de) | 2022-03-31 |
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