WO2015141134A1 - 光画像診断装置及びそれに用いるカテーテル - Google Patents
光画像診断装置及びそれに用いるカテーテル Download PDFInfo
- Publication number
- WO2015141134A1 WO2015141134A1 PCT/JP2015/000845 JP2015000845W WO2015141134A1 WO 2015141134 A1 WO2015141134 A1 WO 2015141134A1 JP 2015000845 W JP2015000845 W JP 2015000845W WO 2015141134 A1 WO2015141134 A1 WO 2015141134A1
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- WIPO (PCT)
- Prior art keywords
- catheter
- knob
- connector
- mdu
- end holding
- Prior art date
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- 230000003287 optical effect Effects 0.000 title claims description 17
- 239000013307 optical fiber Substances 0.000 claims abstract description 20
- 239000000835 fiber Substances 0.000 claims description 17
- 238000002059 diagnostic imaging Methods 0.000 claims description 12
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 7
- 229920006324 polyoxymethylene Polymers 0.000 claims description 7
- -1 polyoxymethylene Polymers 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000006096 absorbing agent Substances 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 210000004204 blood vessel Anatomy 0.000 description 7
- 238000012014 optical coherence tomography Methods 0.000 description 7
- 238000003384 imaging method Methods 0.000 description 5
- 238000010008 shearing Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 229920001707 polybutylene terephthalate Polymers 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 208000007479 Orofaciodigital syndrome type 1 Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 201000003455 orofaciodigital syndrome I Diseases 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0062—Arrangements for scanning
- A61B5/0066—Optical coherence imaging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0082—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes
- A61B5/0084—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes for introduction into the body, e.g. by catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/04—Macromolecular materials
- A61L29/06—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0113—Mechanical advancing means, e.g. catheter dispensers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3897—Connectors fixed to housings, casing, frames or circuit boards
Definitions
- the present invention relates to an image diagnostic apparatus using optical interference and a catheter used therefor.
- OCT optical coherence tomography
- SS-OCT Swept-Source OCT
- a catheter in which an imaging core that transmits and receives light is housed rotatably at the tip and movably in the axial direction.
- the imaging core is connected to a drive shaft that has approximately the same length as the entire length of the catheter.
- the drive shaft accommodates an optical fiber in the inside.
- the connector for connecting with the MDU (motor drive unit) part which an image diagnostic apparatus has is provided in the rear end of the catheter.
- the MDU unit is a drive unit that functions as a power source for rotation of the drive shaft and movement in the axial direction, and has a connector for connecting to the catheter.
- Reference numeral 2A in FIG. 2 shows a state in which the connector portion (hereinafter referred to as catheter connector) 150 of the catheter is moved in the direction of arrow 210 and connected to the connector portion (hereinafter referred to as MDU connector) 204 of the MDU portion 102.
- . 2B is a front view of the MDU connector 204.
- Reference numeral 2C in FIG. 2 is a partially transparent perspective view of a knob engaging portion 206 that fits and supports the knob of the catheter located at the center of the MDU connector 204.
- 2 is a developed plan view showing an inner surface when the knob engaging portion 206 shown in 2C is cut along the line A-A ′.
- FIG. 3 shows a cross-sectional structure of a general catheter connector 150.
- the MDU section 102 is roughly composed of a base section 201 and a slider section 202 that is slidable along the illustrated arrow 209 with respect to the base section 201.
- the base 201 is provided with various operation switches including a grip 203 for gripping the catheter sheath 153.
- the base 201 has a motor for sliding the circuit board and the slider 202 along the arrow 209.
- the slider unit 202 is provided with an MDU connector 204 for accommodating and connecting the catheter connector 150.
- the slider unit 202 includes a motor for rotating the drive shaft in the catheter, an optical fiber of the drive shaft, and the cable 104. The optical fiber is optically connected.
- the MDU connector 204 functions as a cover that protects the connection state when the catheter connector 150 is connected.
- the MDU connector 204 includes a connector engaging portion 205 having guide grooves 205a and 205b for guiding projections 151 and 152 of the catheter connector 150, as indicated by reference numeral 2B in FIG.
- the connector engaging portion 205 is fixed without rotating.
- the knob engaging portion 206 is optically connected to the optical fiber in the catheter when the knob 301 (see FIG. 3) that holds the optical fiber positioned at the center position of the catheter connector 150 is fitted. It rotates together with the knob 301.
- a guide wall 207 for guiding the protrusion 302 provided at the tip of the knob 301 is provided inside the knob engaging portion 206.
- the guide wall 207 corresponds to a ridge line of “mountain” in the knob engaging portion 206, as indicated by reference numeral 2C in FIG.
- Reference numeral 2D in FIG. 2 is a plane developed showing the inner surface when cut along the vertical A-A ′ line passing through the apex of the “mountain” defined by the guide wall 207. As can be seen from 2D in FIG.
- the space between the guide walls 207 forms the guide groove 208.
- the width W0 of the guide groove 208 on the opening side of the knob engaging portion 206 is substantially equal to the inner periphery of the knob engaging portion 206, and the width becomes W1 along the depth direction, so that a certain amount of insertion proceeds.
- the width at this stage is the same as the width of the projection 302, and the knob 301 is guided on a straight line.
- the inclination angle of the guide wall 207 is not particularly limited, but is preferably 15 to 60 degrees, and more preferably 20 to 45 degrees. The larger the tilt angle, the more the phase shift can be corrected. On the other hand, the greater the inclination angle, the longer the stroke (length in the depth direction) required for mounting the catheter connector 150, so a suitable angle is determined in consideration of the design. In the present invention, 30 degrees is adopted.
- the catheter connector 150 has an opening 300 for supporting the catheter sheath 153 and connecting to the MDU unit 102 as shown in FIG.
- the catheter connector 150 includes a rotatable knob 301 that is integrated with a drive shaft 303 housed in a catheter sheath 153.
- This knob 301 is made of PBT (polybutylene terephthalate), and has a structure for guiding the optical fiber 304 accommodated in the drive shaft and exposing its tip.
- the support portion 310 prevents the knob 310 from protruding to the outside, and applies force to the knob 310 in a direction in which the optical connector is unfitted when the catheter connector 150 is removed from the MDU portion 102. is there.
- the end face of the optical fiber 304 is not a plane orthogonal to the axial direction, but an inclined plane inclined by an angle ⁇ with respect to the orthogonal plane.
- the end face (not shown) of the optical fiber located in the back of the knob engaging part 206 in the MDU part 102 is also exposed with an optical fiber having the same angle of inclination, and the end faces of both optical fibers are surface-connected. It has become so. The reason why the fiber end face has the inclination angle ⁇ is to reduce the influence of the reflected light on the connecting face.
- the knob 301 in the catheter connector 150 has a protrusion (key) 302 for defining the angle in the rotation direction of the knob.
- the knob engaging portion 206 on the MDU 102 side is provided with a guide groove 208 defined by the guide wall 207 described above so that the knob 301 and the knob engaging portion 206 are fixed at a fixed angle. It has become.
- the protrusion 302 of the knob 301 is If it collides with the guide wall 207 of the knob engaging portion 206 and is pushed in as it is, the knob engaging portion 206 rotates, and finally the protrusion 302 of the knob 301 extends along the guide groove 208 of the knob engaging portion 206. Guided, the end faces of both optical fibers are connected to each other.
- the user performs an operation of holding the catheter connector 150 in his hand and pushing it into the connector unit 204 of the MDU unit 102.
- the positions of the protrusions 151 and 152 of the catheter connector 150 are defined on the MDU unit 102 side.
- the knob 301 receives a force for connecting the catheter connector 150 to the MDU part 102 via the elastic body 311 and is connected to the knob engaging part 206.
- the knob 301 collides with the knob engaging portion 206 and the connection cannot be completed depending on the tolerance variation.
- the elastic body 311 that is relatively easy to deform at the end of the knob 301, the dimensional mismatch at the time of connection can be alleviated.
- the elastic body 311 since the reaction force at the time of deformation of the elastic body 311 needs to exceed a load necessary to complete the connection between the knob 301 and the knob engaging portion 206, the elastic body 311 has a spring constant of a certain level or more.
- the support portion 312 is for fixing and supporting the elastic body 311.
- the optical fiber is appropriately connected when the catheter is connected to the MDU unit 102.
- the elastic body 311 is generally made of silicon rubber.
- the knob 301 is integrated with the knob engaging portion 206.
- the protrusions 151 and 152 are also fixedly supported by the MDU unit 102. As a result, a sufficient space is created between the rear end surface 301 a of the knob 301 and the surface 311 a of the elastic body 311.
- the protrusion 302 of the tab 301 comes into contact with the guide wall in the tab engaging portion 206 on the MDU unit 102 side. Then, when the pushing operation is performed as it is, the rear end surface 301a of the knob 301 comes into contact with the surface 311a of the elastic body 311 and a frictional force is generated therebetween. That is, the rotation of the knob 301 is suppressed.
- the knob engaging portion 206 in the MDU portion 102 is connected to the configuration related to the rotational drive in the MDU portion 102, and the knob engaging portion 206 is rotatable even in a non-driven state even though it is rotatable.
- the force to be suppressed (hereinafter referred to as the rotation suppression force of the knob engaging portion 206) is working. Accordingly, when the insertion operation of the catheter connector 150 is continued in a state where the rear end surface 301a of the knob 301 is in contact with the surface 311a of the elastic body 311, the protrusion 302 of the knob 301 and the guide wall 207 of the knob engaging portion 206 are maintained.
- the present invention has been made in view of the above problems, and with a simple structure, not only the burden on the catheter but also the burden on the MDU section is reduced, and the MDU section can be used for a long time. It is intended to provide technology.
- the catheter of the present invention has the following configuration. That is, A catheter used in an optical diagnostic imaging apparatus, A connector for connecting to the drive unit of the optical diagnostic imaging apparatus;
- the connector is In order to optically connect with the drive unit, a fiber end holding unit that holds an optical fiber with its end face exposed, and An elastic body for abutting when the fiber end holding portion retreats due to the pushing of the connector into the driving portion, and for buffering a load when connected to the driving portion;
- a member having characteristics, The member is fixed to the elastic body.
- the burden on the catheter not only the burden on the catheter but also the burden on the MDU part can be reduced, and the MDU part can be used for a long time.
- FIG. 1 is an external view of a diagnostic imaging apparatus according to an embodiment. It is a figure which shows the cross-section of the connector of the conventional catheter. It is a figure which shows the mode of the connection of a MDU part and a catheter, and the structure of the front-end
- FIG. 1 is a diagram showing an example of the overall configuration of an optical tomographic image diagnostic apparatus (hereinafter simply referred to as an image diagnostic apparatus) 100 according to an embodiment of the present invention.
- an apparatus using a wavelength swept light source is taken as an example.
- the use of a wavelength swept light source is merely an example.
- the diagnostic imaging apparatus 100 includes a catheter 101, an MDU unit 102, and an operation control device 103.
- the MDU unit 102 and the operation control device 103 are connected by a cable 104 via a connector 105.
- the cable 104 accommodates an optical fiber and various signal lines.
- the catheter 101 protects the optical fiber and accommodates a drive shaft for transmitting rotational force.
- light (measurement light) transmitted from the operation control device 100 through the MDU unit 102 is transmitted in a direction substantially perpendicular to the central axis of the optical fiber, and the transmitted light
- An imaging core having an optical transmission / reception unit for receiving reflected light from outside is provided.
- the MDU unit 102 has the structure shown in FIG. Briefly, the catheter is held via a connector provided at the rear end of the catheter 101. And the drive shaft in a catheter is rotated by driving the motor incorporated in the MDU part 102, and the imaging core provided in the front-end
- the catheter 101 is guided into the blood vessel of the patient, the radial scanning motor built in the MDU unit 102 is driven, and the drive shaft in the catheter 101 is rotated, so that the lumen surface in the blood vessel is 360 degrees. It is possible to scan across. Further, the MDU unit 102 pulls the drive shaft in the catheter 101 at a predetermined speed, so that scanning along the blood vessel axis is performed. As a result, a plurality of tomographic images along the blood vessel axis viewed from the inside of the blood vessel can be obtained, and these can be connected to reconstruct a three-dimensional blood vessel image.
- the operation control device 103 has a function of comprehensively controlling the operation of the diagnostic imaging apparatus 100.
- the operation control device 103 has, for example, a function of inputting various setting values based on a user (doctor) instruction into the device and a function of processing data obtained by measurement and displaying it as a tomographic image in the body cavity.
- the operation control device 103 includes a main body control unit 111, a printer / DVD recorder 111-1, an operation panel 112, an LCD monitor 113, and the like.
- the main body control unit 111 generates an optical tomographic image.
- the optical tomographic image generates interference light data by causing interference between reflected light obtained by measurement and reference light obtained by separating light from the light source, and is generated based on the interference light data. It is generated by processing the line data.
- the printer / DVD recorder 111-1 prints the processing result in the main body control unit 111 or stores it as data.
- the operation panel 112 is a user interface through which a user inputs various setting values and instructions.
- the LCD monitor 113 functions as a display device and displays, for example, a tomographic image generated by the main body control unit 111.
- Reference numeral 114 denotes a mouse as a pointing device (coordinate input device).
- the above is the general configuration and operation of the diagnostic imaging apparatus 100.
- the feature of this embodiment is the structure of the connector for connecting the MDU unit 102 in the catheter 101.
- the structure of the MDU unit 102 is assumed to be the same as that in FIG. 2, and the structure of the catheter connector 150 in the embodiment will be described below with reference to FIGS. 4A to 4C.
- symbol is attached
- FIG. 4A shows a cross-sectional structure diagram of the catheter connector 150 in the embodiment.
- the difference from FIG. 3 is that a hard ring member 401 is interposed between the elastic body 311 (made of silicon rubber) and the knob 301, and the other points are the same.
- the ring member 401 includes a cylindrical portion that fits into the inner diameter of the elastic body 311 and a flange portion (see FIG. 4B) for dispersing the force when contacting the rear end surface 301 a of the knob 301.
- a protrusion 401a along the circumference was provided on the flange 301 side of the flange portion.
- the diameter R of the protrusion 401a is set to be the innermost diameter of the flange portion or close to it.
- the depth L0 of the cylindrical portion of the ring member 411 is sufficiently smaller than the thickness L of the elastic body 311 in the depth direction.
- POM Polyoxymethylene
- the frictional force between the knobs 301 can be reduced as the material of the ring member 401.
- the protrusion 401a is arranged along the innermost diameter of the ring member 401, the friction torque between the elastic body 311 and the knob 301 can be further reduced.
- the friction torque between the ring member 401 and the knob 301 can be sufficiently smaller than the rotation suppression force of the knob engaging portion 206 when the MDU portion 102 is not driven.
- the frictional force between the ring member 401 and the knob 301 causes the knob engaging portion when the MDU portion 102 is not driven.
- the material of the ring member does not stick to POM as long as the condition that the rotation suppression force of 206 is smaller is satisfied.
- the knob 301 is generally made of PBT (Poly Butylene Terephthalate), and POM is desirable in that the friction resistance is sufficiently small and the cost can be reduced.
- the side that rotates for proper optical coupling is provided in the catheter with low resistance during rotation. It can be on the knob side. Therefore, the burden on the MDU unit 102 at the time of connection can be reduced as compared with the conventional structure, and the operating rate can be increased.
- the present inventor when connecting the catheter and the MDU unit, the present inventor has a line of force generated at the contact point when the projection 302 of the tab 301 comes into contact with the guide wall 207 of the tab engaging unit 206. Focusing on the fact that the rotational torque indicated by the arrow 500 in FIG. 5A is generated around the contact point from the deviation of the force line of the resultant force received by the knob 301 from the ring member 401.
- the knob engaging portion 206 is shown to permit intrusion when the knob 301 is tilted, but this is only exaggerated for the sake of clarity. It does not indicate that there is a gap applied to the knob engaging portion 206.
- the knob 301 enters the knob engaging portion 206 in a slightly inclined state.
- the catheter 101 is mounted on the MDU unit 102
- the mounting force is received at the contact portion between the tab 301 and the tab engaging portion 206, and a shearing force is generated at the protrusion 302 of the tab 301.
- the knob 301 is in a tilted state, the cross-sectional area that receives this shearing force is smaller than that when the catheter is not tilted. As a result, a large shear stress is generated in the protrusion 302 of the knob 301, and the protrusion 302 of the knob 301 may be damaged or deformed.
- the rotational center of the torque 500 is defined at the position where the protrusion 302 on the circumference of the knob 301 is provided. Therefore, the surface of the knob 301 that comes into contact with the ring member 401 is the surface where the thickness of the flange portion of the knob 301 is the thickest in the same direction as that of the protruding portion 302 and the direction opposite to the protruding portion 302 is the smallest. I made it.
- an imaging core has not only an optical transmission / reception unit but also an ultrasonic transmission / reception unit, and there is also a device that generates a cross-sectional image using optical interference and a cross-sectional image using ultrasonic waves in one scan. You may apply to.
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Abstract
Description
光画像診断装置に利用されるカテーテルであって、
前記光画像診断装置が有する駆動部と接続するためのコネクタを有し、
当該コネクタは、
前記駆動部と光学的に接続するため、光ファイバを、その端面を露出させて保持するファイバ端保持部と、
前記駆動部への前記コネクタの押し込みに起因して前記ファイバ端保持部が後退した際に当接し、前記駆動部との接続時の負荷を緩衝するための弾性体と、
当該弾性体と前記ファイバ端保持部との間に設けられ、前記ファイバ端保持部が後退した際に当接する部材であって、前記ファイバ端保持部の回転に対して予め設定した摩擦係数以下の特性を有する部材とを有し、
前記部材は、前記弾性体に固定されていることを特徴とする。
図1は、本発明の一実施の形態に係わる光断層像診断装置(以下、単に画像診断装置)100の全体構成の一例を示す図である。なお、実施形態では波長掃引光源を利用する装置を例にするが、単一波長光源を用いる装置に適用できるので、波長掃引光源を利用するのはあくまで一例であると認識されたい。
更に本発明者は、カテーテルとMDU部とを接続する際、ツマミ301の突起部302がツマミ係合部206のガイド壁207に当接した際に、その接触点において発生する力の力線と、ツマミ301がリング部材401から受ける力の合力の力線のズレから、接触点を中心に図5Aの矢印500に示す回転トルクが発生することに着目した。なお、図5Aでは、ツマミ係合部206が、ツマミ301が傾いた状態での侵入を許可するかのように示しているが、これは説明をわかりやするために誇張して示したに過ぎず、ツマミ係合部206にかかる間隙があることを示すものではない。
Claims (6)
- 光画像診断装置に利用されるカテーテルであって、
前記光画像診断装置が有する駆動部と接続するためのコネクタを有し、
当該コネクタは、
前記駆動部と光学的に接続するため、光ファイバを、その端面を露出させて保持するファイバ端保持部と、
前記駆動部への前記コネクタの押し込みに起因して前記ファイバ端保持部が後退した際に当接し、前記駆動部との接続時の負荷を緩衝するための弾性体と、
当該弾性体と前記ファイバ端保持部との間に設けられ、前記ファイバ端保持部が後退した際に当接する部材であって、前記ファイバ端保持部の回転に対して予め設定した摩擦係数以下の特性を有する部材とを有し、
前記部材は、前記弾性体に固定されている
ことを特徴とするカテーテル。 - 前記ファイバ端保持部には、前記駆動部に設けられた案内溝に案内される突起部が設けられ、
前記光ファイバは、前記突起部が設けられる周方向に規定される方向に傾斜した端面を有する
ことを特徴とする請求項1に記載のカテーテル。 - 前記ファイバ端保持部における前記部材と接する面は、前記部材に対して傾斜する傾斜面であって、当該傾斜面は、前記突起部が設けられる方向に対応する位置と前記部材間の距離が最短となる傾斜面であることを特徴とする請求項1又は2に記載のカテーテル。
- 前記部材は、前記弾性体に嵌入するための円筒部分と、前記ファイバ端保持部と接した際の力を面で受けるためのフランジ部分と、当該フランジ部分の前記ファイバ端保持部側に向かう面に設けられ、最も内側の円形状の、前記ファイバ端保持部と接するための突起部とを有することを特徴とする請求項1又は2に記載のカテーテル。
- 前記部材は、POM(ポリオキシメチレン)で構成されることを特徴とする請求項1乃至3のいずれか1項に記載のカテーテル。
- 請求項1乃至5のいずれか1項に記載のカテーテルを有する光画像診断装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP15764629.0A EP3120749A4 (en) | 2014-03-19 | 2015-02-23 | Optical image diagnostic device and catheter used in same |
JP2016508486A JP6563902B2 (ja) | 2014-03-19 | 2015-02-23 | 光画像診断装置及びそれに用いるカテーテル |
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JP2014057097 | 2014-03-19 | ||
JP2014-057097 | 2014-03-19 |
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JP2009123508A (ja) * | 2007-11-14 | 2009-06-04 | Japan Aviation Electronics Industry Ltd | スライド式多方向スイッチ |
JP2009184351A (ja) * | 2008-01-09 | 2009-08-20 | Zebra Pen Corp | 出没式筆記具 |
WO2009154103A1 (ja) * | 2008-06-20 | 2009-12-23 | テルモ株式会社 | 接続装置および光イメージング装置 |
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US6749344B2 (en) * | 2001-10-24 | 2004-06-15 | Scimed Life Systems, Inc. | Connection apparatus for optical coherence tomography catheters |
ATE328636T1 (de) * | 2003-03-21 | 2006-06-15 | Urovision Ges Fuer Medizinisch | Platziervorrichtung für einen katheter |
US8825142B2 (en) * | 2009-09-30 | 2014-09-02 | Terumo Kabushiki Kaisha | Imaging apparatus for diagnosis and control method thereof |
WO2011114411A1 (ja) * | 2010-03-19 | 2011-09-22 | テルモ株式会社 | プローブ及び光画像診断装置 |
US9360630B2 (en) * | 2011-08-31 | 2016-06-07 | Volcano Corporation | Optical-electrical rotary joint and methods of use |
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JP2009123508A (ja) * | 2007-11-14 | 2009-06-04 | Japan Aviation Electronics Industry Ltd | スライド式多方向スイッチ |
JP2009184351A (ja) * | 2008-01-09 | 2009-08-20 | Zebra Pen Corp | 出没式筆記具 |
WO2009154103A1 (ja) * | 2008-06-20 | 2009-12-23 | テルモ株式会社 | 接続装置および光イメージング装置 |
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EP3120749A4 (en) | 2017-11-29 |
JP6563902B2 (ja) | 2019-08-21 |
EP3120749A1 (en) | 2017-01-25 |
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