WO2013051755A1 - 안압 센서 및 그 제조 방법 - Google Patents
안압 센서 및 그 제조 방법 Download PDFInfo
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- WO2013051755A1 WO2013051755A1 PCT/KR2011/009009 KR2011009009W WO2013051755A1 WO 2013051755 A1 WO2013051755 A1 WO 2013051755A1 KR 2011009009 W KR2011009009 W KR 2011009009W WO 2013051755 A1 WO2013051755 A1 WO 2013051755A1
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- WIPO (PCT)
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- substrate
- electrode
- intraocular pressure
- base film
- pressure sensor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/16—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for measuring intraocular pressure, e.g. tonometers
Definitions
- the present invention relates to an intraocular pressure sensor and a manufacturing method thereof, and more particularly, to an intraocular pressure sensor and a method of manufacturing the same, which can further improve the measurement range and measurement efficiency of intraocular pressure.
- the intraocular pressure sensor measures the pressure of the eye, ie intraocular pressure, in the human body.
- Intraocular pressure sensors are used to accurately measure a patient's intraocular pressure for the diagnosis and treatment of eye related diseases.
- glaucoma is a disease in which optic nerve damage occurs because the optic nerve cannot tolerate the increased pressure due to an increase in intraocular pressure, and it is necessary to accurately measure the intraocular pressure of a patient in diagnosing and treating glaucoma.
- the present invention has been made to solve the above problems, it is an object of the present invention to provide an intraocular pressure sensor and a manufacturing method that can further improve the intraocular pressure measurement range and measurement efficiency of the patient's eye.
- a method of manufacturing an intraocular pressure sensor comprising: preparing a intraocular pressure sensor implanted into an eyeball of a patient to measure intraocular pressure of the patient, the method comprising: preparing a first substrate; Depositing a base film on a lower surface of the first substrate; Etching the first substrate to expose the top surface of the base film; Applying an epoxy to the center of the exposed base film; Placing a first electrode at an epoxy coating site of the base film; Preparing a second substrate; Depositing a support film on the second substrate; Forming a second electrode on the support film; Etching the second substrate to expose the bottom surface of the support film; And arranging the second substrate on the first substrate.
- a method for manufacturing an intraocular pressure sensor comprising the steps of: preparing an intraocular pressure sensor implanted into an eyeball of a patient to measure intraocular pressure of the patient; Depositing a base film on a lower surface of the first substrate; Etching the first substrate to form an electrode fixing portion and to expose an upper portion of the base film; Applying an epoxy on the electrode holder; Disposing the first electrode on the electrode fixing part; Preparing a second substrate; Depositing a support film on the second substrate; Forming a second electrode on the support film; Etching the second substrate to expose a lower portion of the support film; And arranging the second substrate on the first substrate.
- the first substrate and the second substrate may have the same area.
- the first substrate and the base film may have the same area.
- the second substrate and the support film may have the same area.
- Etching areas of the first substrate and the second substrate may be the same.
- the first electrode may protrude from an adhesive part adhered to the base film.
- An adhesive hole may be formed in a portion of the first electrode that is bonded to the base film.
- the etching of the first substrate may include a first masking step of masking the first substrate, a first etching step of etching the first substrate, but leaving a part of the entire thickness of the first substrate, And a second masking step of masking the center of the etching region of the first substrate, and a second etching step of etching the first substrate to form the electrode fixing part and exposing the base film. .
- the method may include disposing the second substrate on the first substrate and arranging the etching portions to match each other.
- an intraocular pressure sensor includes a base film implanted in an eye of a patient to measure intraocular pressure of a patient, the base film serving as a reference plane of the intraocular pressure measurement of an eye and an epoxy applied to a central portion thereof; A main body disposed along an upper outer circumference of the base film; A first electrode disposed on the base film and having an adhesive hole corresponding to the epoxy; A support film disposed on an upper portion of the main body; A second electrode disposed on the support film; It provides an intraocular pressure sensor comprising a.
- An intraocular pressure sensor includes a base film serving as a reference plane of the intraocular pressure measurement of the eyeball, a main body disposed along an upper outer circumference of the base film; A base film disposed below the main body; An electrode fixing part disposed on the base film; A first electrode formed in a plate shape and bonded to the electrode fixing part by an epoxy; A support film disposed on an upper portion of the main body; A second electrode disposed on the support film; It provides an intraocular pressure sensor comprising a.
- An intraocular pressure sensor includes a base film serving as a reference plane of the intraocular pressure measurement of an eyeball, a main body disposed along an upper outer circumference of the base film; An electrode fixing part disposed on the base film; A first electrode formed in a plate shape and adhered to the electrode fixing part by epoxy; A support film disposed on an upper portion of the main body; A second electrode disposed on the support film; It provides an intraocular pressure sensor comprising a.
- a eddy current is generated in an inner space of the main body, and the eddy current may vary in size in correspondence to a distance between the first electrode and the second electrode.
- the first electrode may include ferrite, aluminum (Al), and copper (Cu).
- the second electrode may include aluminum (Al) and copper (Cu).
- the present invention has an effect of further improving the measurement range and measurement efficiency of the eyeball of the patient by minimizing the adhesive surface of the base film and the first electrode positioned under the IOP.
- FIG. 1 is a flow chart showing the configuration of a pressure sensor manufacturing method according to a first embodiment of the present invention.
- FIG. 2 is a diagram illustrating a process of treating a first substrate used in a method for manufacturing an intraocular pressure sensor according to a first embodiment of the present invention.
- FIG 3 is a view showing a process of treating a second substrate used in the intraocular pressure sensor manufacturing method according to the first embodiment of the present invention.
- FIG. 4 is a perspective view illustrating an example of a configuration of a second electrode illustrated in FIG. 3.
- FIG. 5 is a cross-sectional view showing the configuration of an intraocular pressure sensor completed by the intraocular pressure sensor manufacturing method according to the first embodiment of the present invention.
- FIG. 6 is a view showing an operating state of the ton pressure sensor completed according to the ton pressure sensor manufacturing method according to the first embodiment of the present invention.
- FIG. 8 is a cross-sectional view illustrating an attachment state of a first electrode having an adhesive hole in the intraocular pressure sensor manufacturing method according to the first embodiment of the present invention.
- FIG. 9 is a diagram illustrating a configuration of the intraocular pressure sensor 100A using the first substrate shown in FIG. 8.
- FIG. 10 is a diagram illustrating an operating state of the intraocular pressure sensor illustrated in FIG. 9.
- FIG. 11 is a flowchart illustrating a method of manufacturing an intraocular pressure sensor according to a second embodiment of the present invention.
- FIG. 12 is a view showing a process of treating a first substrate used in the second embodiment of the present invention.
- FIG. 13 is a flowchart illustrating a configuration of an etching step on a first substrate in the intraocular pressure sensor manufacturing method according to the second embodiment of the present invention.
- 15 is a view showing an operating state of the intraocular pressure sensor manufactured by the intraocular pressure sensor manufacturing method according to the second embodiment of the present invention.
- FIG. 1 is a flow chart showing the configuration of a pressure sensor manufacturing method according to a first embodiment of the present invention.
- FIG. 2 is a diagram illustrating a process of treating a first substrate used in a method for manufacturing an intraocular pressure sensor according to a first embodiment of the present invention.
- preparing a first substrate includes preparing a first substrate 110 forming a main body, which is a basic form of the intraocular pressure sensor 100, together with a second substrate to be described later. to be.
- the first substrate 110 is a hard material, and has a predetermined area and thickness.
- the base film forming step S120 is a step of forming the base film 120 on the lower surface of the first substrate 110, and the base film 120 is formed on the first substrate 110. Is formed by a deposition process on the lower surface of the substrate.
- the base film 120 is used as a reference plane for intraocular pressure measurement.
- the area of the base film 120 is preferably equal to the area of the first substrate 110.
- Base film 120 is a film having a flexible (flexible) characteristics, it is used for the measurement of intraocular pressure, it is preferable that the material harmless to the body or eye of the patient.
- the step of performing etching may be performed by etching the upper surface of the first substrate 110 to which the base film 120 is attached. Allow 120 to be exposed.
- etching of the first substrate 110 may be performed as follows. That is, as shown in FIG. 2C, a mask 112 is partially covered and disposed on the outer peripheral side of the upper surface of the first substrate 110.
- the mask 112 may be performed on 10 to 20% of the upper surface of the first substrate 110, but may be changed according to a user's needs.
- etching is performed to expose the base film 120 through the etching site as shown in FIG. 2D.
- the mask 112 is removed.
- the epoxy coating step (S140) is performed.
- an epoxy 130 is coated on the base film 120 so that the first electrode 140 to be described later is attached.
- the epoxy is performed on the central portion of the base film 120.
- the epoxy 130 coating area is preferably a minimum area in the range to which the first electrode 140 to be described later is attached.
- the epoxy 130 may be in a gel state or a liquid state to facilitate the performing of the coating operation.
- the first electrode 140 is disposed.
- the first electrode 140 is disposed at the epoxy 130 application site on the base film 120.
- the first electrode 140 allows a eddy current to be formed in a space separated from the second electrode 174 to be described later.
- the first electrode 140 is in the form of a plate.
- the area of the first electrode 140 is preferably formed on the base film 120 through the etching portion of the first substrate 110 and is formed as wide as possible in a state where it can be vertically moved.
- the first electrode 140 may include ferrite, aluminum (Al), and copper (Cu).
- the first electrode 140 is attached on the base film 120 by an epoxy applied on the base film 120.
- the adhesive part 141 formed in the cross-sectional shape of the rectangular shape on the adhesive surface of the first electrode 140 with the base film 120 is protruded.
- the first electrode 140 When the first electrode 140 is disposed, when the adhesive portion 141 of the first electrode 140 is positioned at the epoxy 130 application site on the base film 120 and the epoxy is cured, the first electrode 140 Fixation is made.
- the base film 120 is raised and lowered according to the intraocular pressure of the eye. At this time, the movement of the first electrode 140 is made easier.
- FIG 3 is a view showing a process of treating a second substrate used in the intraocular pressure sensor manufacturing method according to the first embodiment of the present invention.
- preparing a second substrate may include preparing a second substrate 150 constituting the overall shape of the intraocular pressure sensor 100 together with the first substrate 110. to be.
- the area and thickness of the second substrate 150 may be the same as the area and thickness of the first substrate 110, and the material of the second substrate 150 may be the same as the material of the first substrate 110.
- the support film 160 is formed on the upper surface of the second substrate 150 by a deposition process. do.
- the support film 160 supports the second electrode, which will be described later when the intraocular pressure sensor is used.
- the forming of the supporting film and the second electrode (S170) corresponds to the first electrode 140 in the inner space of the intraocular pressure sensor 100.
- a second electrode 174 is formed to allow eddy currents to be formed.
- a metal layer 170 is deposited on the support film 160.
- the metal layer 170 includes copper (Cu) or aluminum (Al) or copper and an aluminum alloy.
- a mask 172 corresponding to the shape of the second electrode 174 to be described later is disposed on the metal layer 170, and the etching is performed on the metal layer 170.
- the second electrode 174 as shown in (E) is formed.
- FIG. 4 is a perspective view illustrating an example of a configuration of a second electrode illustrated in FIG. 3.
- the shape of the second electrode 174 is not limited to that illustrated and may be variously formed according to a user's needs.
- the second electrode 174 forms a eddy current between the spaced spaces in response to a change in the spaced distance from the first electrode 140.
- the etching of the second substrate (S180) may be performed on the lower surface of the second substrate 150 to etch the lower surface of the support film 160. To be exposed.
- etching of the second substrate 150 may be performed as follows. That is, as shown in FIG. 3F, the mask 152 is partially disposed on the outer peripheral side of the lower surface of the second substrate 150. The mask 152 may be performed on 10 to 20% of the lower surface of the first substrate 110, but may be changed according to a user's needs.
- etching is performed to expose the support film 160 through the etch site as shown in FIG. Once etching is complete, mask 152 is removed.
- the etching area for the second substrate 150 is preferably the same as the etching area for the first substrate 110.
- the intraocular pressure sensor may be disposed by placing the second substrate 150 on the first substrate 110 to which the first electrode 140 is adhered on the base film 120. Complete 100.
- FIG. 5 is a cross-sectional view showing the configuration of an intraocular pressure sensor completed by the intraocular pressure sensor manufacturing method according to the first embodiment of the present invention.
- the first and second substrates 110 and 150 remaining after the etchings S130 and S180 of the first and second substrates 110 and 150 are in contact with each other to be connected up and down. It can be seen that the main body 104 having a space in which eddy currents are formed.
- the base film 120 and the support film 160 are disposed on the lower and upper portions of the main body 104, respectively.
- the first electrode 140 is disposed on the base film 120, and the second electrode 174 is disposed on the support film 160, so that the first electrode 140 is spaced apart from the second electrode 174.
- a eddy current may be formed in the space corresponding to the separation distance.
- the same can be applied to the intraocular pressure sensor described later.
- the intraocular pressure sensor 100 of the configuration shown in FIG. 5 is disposed within an eyeball (not shown).
- the separation distance between the first electrode 140 and the second electrode 174 continuously maintains the originally set state, as shown in FIG. 5.
- FIG. 6 is a view showing an operating state of a tonometer sensor completed according to the tonometer sensor manufacturing method according to the first embodiment of the present invention, wherein the first electrode 140 and the second electrode 174 when the intraocular pressure rises to a certain degree. It is a figure which shows the relationship with a.
- the height of the center portion of the base film 120 increases due to the increase in intraocular pressure, and the separation distance between the first electrode 140 and the second electrode 174 is narrowed.
- the increase in intraocular pressure may be measured by sensing this.
- the base film 120 is raised and lowered according to the intraocular pressure of the eye. At this time, the movement of the first electrode 140 is made easier.
- FIG. 7 is a view illustrating eddy current generation in an intraocular pressure sensor completed according to the intraocular pressure sensor manufacturing method according to the first embodiment of the present invention.
- a eddy current is generated between the first electrode 140 and the second electrode 174. Since the eddy currents act in a direction of decreasing the inductance of the inductor, if the external pressure of the IOP increases, the first electrode 140 and the second electrode 174 approach each other, The magnitude of the eddy currents increases, and as a result, the inductance of the inductor is further reduced.
- the impedance value of the intraocular pressure sensor when the distance between the first electrode 140 and the second electrode 174 is changed by the external pressure of the intraocular pressure sensor, the parasitic component of the inductor by the second electrode 174 is changed. The change will cause a change in the impedance value of the intraocular pressure sensor.
- the impedance value change of the intraocular pressure sensor is detected from the outside, the pressure inside the eye can be known from the outside.
- the intraocular pressure may be measured by measuring the eddy current change according to the change of the distance between the first electrode 140 and the second electrode 174.
- the change in eddy current with the distance between electrodes is measured separately.
- the epoxy applied on the base film 120 is pushed out by the attachment pressure of the electrode, the epoxy coating site can be expanded differently from the user's intention.
- FIG. 8 is a cross-sectional view illustrating an attachment state of a first electrode having an adhesive hole in the intraocular pressure sensor manufacturing method according to the first embodiment of the present invention.
- FIG. 9 is a diagram illustrating a configuration of the intraocular pressure sensor 100A using the first substrate shown in FIG. 8.
- an adhesive hole 142 is formed through the center of the first electrode 140A.
- the area of the adhesive hole 142 is preferably smaller than the epoxy coating area.
- the epoxy allows the first electrode 140A to be bonded to the base film 120.
- the epoxy is introduced into the adhesion hole 142 by the attachment pressure of the first electrode 140A, and the adhesion area between the base film 120 and the first electrode 140A can be prevented from expanding beyond the setting. have.
- FIG. 10 is a diagram illustrating an operating state of the intraocular pressure sensor illustrated in FIG. 9.
- the intraocular pressure sensor 100A illustrated in FIG. 10 has the same configuration and operation as the intraocular pressure sensor 100 illustrated in FIGS. 5 and 6 except that the adhesive hole 142 is formed in the first electrode 140A. Detailed description will be omitted.
- FIG. 11 is a flowchart illustrating a method of manufacturing an intraocular pressure sensor according to a second exemplary embodiment of the present invention
- FIG. 12 is a diagram illustrating a process of treating a first substrate used in the second exemplary embodiment of the present invention.
- the electrode fixing part 116 is formed on the base film 120 to minimize the adhesive area for fixing the first electrode 140B.
- Formation of the electrode fixing part 116 is performed in an etching step S230 of the first substrate.
- the etching step S230 for the first substrate is performed as follows.
- FIG. 13 is a flowchart illustrating a configuration of an etching step S230 of a first substrate in the intraocular pressure sensor manufacturing method according to the second embodiment of the present invention.
- the etching of the first substrate may include a first masking step S232, a first etching step S233, a second masking step S234, and a second etching step S235.
- the first mask 112 is disposed on the etching surface of the first substrate 110. As illustrated in FIG. 12C, the first mask 112 is disposed to partially cover the outer peripheral portion of the upper surface of the first substrate 110. The first mask 112 may be disposed to cover 10 to 20% of the upper surface of the first substrate 110, but may be changed according to a user's needs.
- the first etching step S233 is performed.
- the first etching step S233 is performed until the thickness of the etching site of the first substrate 110 is approximately 1/2.
- the first etching step S233 is finished.
- the first etching step S233 is performed until the thickness of the etching portion of the first substrate 110 is 1/2, but this is because the height of the electrode fixing part 116, which will be described later, is increased by the first substrate ( It is limited to the case where the height is formed at the height of 110, and the degree of the first etching step S233 may be changed according to the set height of the electrode fixing part 116.
- the second mask 114 is disposed at a predetermined area in the center of the etching surface.
- the area of the second mask 114 is formed at a level corresponding to the upper area of the electrode fixing part 116 to be described later.
- a second etching step S235 is performed to etch the upper surface of the first substrate 110.
- the second etching step S235 is performed until the base film 120 is exposed through the etching site formed in the first etching step S233. At this time, the portion where the second mask 114 is disposed is not removed, and the electrode fixing part 116 having a predetermined height and diameter is formed.
- the second etching step S235 is completed, the second mask 114 is removed.
- the epoxy coating step S240 applies epoxy to the upper surface of the electrode fixing part 116 formed in the second etching step S235.
- the first electrode 140B is disposed on the electrode fixing part 116 (S250).
- FIG 14 is a cross-sectional view showing the configuration of the intraocular pressure sensor 100B in which the first electrode 140B is disposed on the electrode fixing part 116.
- the first electrode 140B is formed in a flat plate shape, an adhesive hole may be formed or the electrode fixing part may be formed as in the previous embodiment.
- the etching of the first substrate 110 and the second substrate 150 is completed, as shown in FIG. 14, the first substrate 110 and the second substrate 150 are aligned with each other to be coupled to each other.
- the sensor 100B is completed.
- 15 is a view showing an operating state of the intraocular pressure sensor manufactured by the intraocular pressure sensor manufacturing method according to the second embodiment of the present invention.
- the operation of the intraocular pressure sensor manufactured by the manufacturing method according to the present embodiment is the same as the intraocular pressure sensor manufactured by the manufacturing method according to the previous embodiment, a detailed description thereof will be omitted.
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Abstract
Description
Claims (16)
- 환자의 안구에 이식되어 환자의 안압을 측정하는 안압 센서를 제작하는 방법으로서,제1 기판을 준비하는 단계;상기 제1 기판의 하부면에 베이스 필름을 증착 형성하는 단계;상기 제1 기판에 대하여 에칭을 수행하여 상기 베이스 필름의 상부면이 노출되도록 하는 단계;노출된 상기 베이스 필름의 중앙에 에폭시를 도포하는 단계;상기 베이스 필름의 에폭시 도포 부위에 제1 전극을 배치하는 단계;제2 기판을 준비하는 단계;상기 제2 기판 상에 지지 필름을 증착 형성하는 단계;상기 지지 필름 상에 제2 전극을 형성하는 단계;상기 제2 기판에 대하여 에칭을 수행하여 상기 지지 필름의 하부면이 노출되도록 하는 단계; 및상기 제1 기판 상에 상기 제2 기판을 배치하는 단계를 포함하는 안압센서 제조 방법.
- 환자의 안구에 이식되어 환자의 안압을 측정하는 안압 센서를 제작하는 방법으로서,제1 기판을 준비하는 단계;상기 제1 기판의 하부면에 베이스 필름을 증착 형성하는 단계;상기 제1 기판에 대하여 에칭을 수행하여 전극 고정부를 형성하고 상기 베이스 필름의 상부가 노출되도록 하는 단계;상기 전극 고정부 상에 에폭시를 도포하는 단계;상기 전극 고정부 상에 상기 제1 전극을 배치하는 단계;제2 기판을 준비하는 단계;상기 제2 기판 상에 지지 필름을 증착 형성하는 단계;상기 지지 필름 상에 제2 전극을 형성하는 단계;상기 제2 기판에 대하여 에칭을 수행하여 상기 지지 필름의 하부가 노출되도록 하는 단계; 및상기 제1 기판 상에 상기 제2 기판을 배치하는 단계를 포함하는 안압센서 제조 방법.
- 제1항 또는 제2항에 있어서,상기 제1 기판과 상기 제2 기판은 면적이 동일한 안압센서 제조 방법.
- 제3항에 있어서,상기 제1 기판과 상기 베이스 필름은 면적이 동일한 안압센서 제조 방법.
- 제3항에 있어서,상기 제2 기판과 상기 지지 필름은 면적이 동일한 안압센서 제조 방법.
- 제1항에 있어서,상기 제1 기판과 상기 제2 기판에 대한 에칭 면적은 서로 동일한 안압센서 제조 방법.
- 제1항에 있어서,상기 제1 전극은 상기 베이스 필름과 접착되는 접착부가 돌출 형성되는 안압센서 제조 방법.
- 제1항에 있어서,상기 제1 전극은 상기 베이스 필름과 접착되는 부위에 접착홀이 형성되는 안압센서 제조 방법.
- 제2항에 있어서,상기 제1 기판에 대한 에칭 단계는상기 제1 기판에 마스킹을 수행하는 제1 마스킹 단계,상기 제1 기판에 에칭을 수행하되 상기 제1 기판의 전체 두께 중 일부분을 잔류시키는 제1 에칭 단계,상기 제1 기판의 에칭 부위의 중앙에 마스킹을 수행하는 제2 마스킹 단계,상기 제1 기판에 에칭을 수행하여 상기 전극 고정부가 형성되도록 하고 상기 베이스 필름이 노출되도록 하는 제2 에칭 단계를 포함하는 안압센서 제조 방법.
- 제1항에 또는 제2항에 있어서,상기 제1 기판 상에 상기 제2 기판을 배치하되 상기 에칭 부위가 서로 일치하도록 정렬하여 배치하는 단계를 포함하는 안압센서 제조 방법.
- 환자의 안구에 이식되어 환자의 안압을 측정하는 센서로서,안구의 상기 안압 측정의 기준면으로 작용하는 베이스 필름,상기 베이스 필름의 상부 외주를 따라 배치되는 본체;판 형태이고 상기 베이스 필름 상에 배치되는 제1 전극;상기 제1 전극의 일면에 돌출 형성되고 에폭시에 의해 상기 베이스 필름에 접착되는 접착부;상기 본체의 상부에 배치되는 지지 필름; 및상기 지지 필름 상에 배치되는 제2 전극; 을 포함하는 안압센서.
- 환자의 안구에 이식되어 환자의 안압을 측정하는 센서로서,안구의 상기 안압 측정의 기준면으로 작용하고 중앙부에 에폭시가 도포되는 베이스 필름;상기 베이스 필름의 상부 외주를 따라 배치되는 본체;판 형태이고 상기 베이스 필름 상에 배치되고 상기 에폭시에 대응하는 접착홀이 형성되는 제1 전극;상기 본체의 상부에 배치되는 지지 필름; 및상기 지지 필름 상에 배치되는 제2 전극; 을 포함하는 안압센서.
- 환자의 안구에 이식되어 환자의 안압을 측정하는 센서로서,안구의 상기 안압 측정의 기준면으로 작용하는 베이스 필름,상기 베이스 필름의 상부 외주를 따라 배치되는 본체;상기 베이스 필름 상에 배치되는 전극 고정부;판 형태이고 상기 전극 고정부에 에폭시에 의해 접착되는 제1 전극;상기 본체의 상부에 배치되는 지지 필름; 및상기 지지 필름 상에 배치되는 제2 전극; 을 포함하는 안압센서.
- 제11항 내지 제13항 중 어느 한 항에 있어서,상기 본체의 내부 공간에 맴돌이 전류가 생성되며,상기 맴돌이 전류는상기 제1 전극과 상기 제2 전극 사이의 거리에 대응하여 크기가 변화되는 안압센서.
- 제11항 내지 제13항 중 어느 한 항에 있어서,상기 제1 전극은 페라이트(ferrite), 알루미늄(Al), 구리(Cu)를 포함하는 안압센서.
- 제11항 내지 제13항의 어느 한 항에 있어서,상기 제2 전극은 알루미늄(Al), 구리(Cu)를 포함하는 안압센서.
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US14/350,123 US9717411B2 (en) | 2011-10-07 | 2011-11-24 | Intraocular pressure sensor and method for manufacturing same |
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KR1020110102571A KR101253334B1 (ko) | 2011-10-07 | 2011-10-07 | 안압 센서 및 그 제조 방법 |
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JP6405276B2 (ja) * | 2015-03-27 | 2018-10-17 | 新日本無線株式会社 | Mems素子およびその製造方法 |
US20190133442A1 (en) * | 2017-09-06 | 2019-05-09 | California Institute Of Technology | Intraocular pressure sensor |
KR102095437B1 (ko) * | 2017-12-06 | 2020-04-01 | 재단법인대구경북과학기술원 | 풍선 타입 망막 자극장치 및 이의 제조방법 |
JP7127809B2 (ja) * | 2018-06-05 | 2022-08-30 | 日清紡マイクロデバイス株式会社 | Mems素子 |
US11605774B2 (en) * | 2020-09-23 | 2023-03-14 | Apple Inc. | Multifunction magnetic and piezoresistive MEMS pressure sensor |
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