WO2011121931A2 - カテーテル - Google Patents
カテーテル Download PDFInfo
- Publication number
- WO2011121931A2 WO2011121931A2 PCT/JP2011/001650 JP2011001650W WO2011121931A2 WO 2011121931 A2 WO2011121931 A2 WO 2011121931A2 JP 2011001650 W JP2011001650 W JP 2011001650W WO 2011121931 A2 WO2011121931 A2 WO 2011121931A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- region
- tubular member
- catheter
- leaf spring
- tube
- Prior art date
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Classifications
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- 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
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- 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
- A61M25/0133—Tip steering devices
- A61M25/0144—Tip steering devices having flexible regions as a result of inner reinforcement means, e.g. struts or rods
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- 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
-
- 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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M2025/004—Multi-lumen catheters with stationary elements characterized by lumina being arranged circumferentially
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- 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
- A61M25/0133—Tip steering devices
- A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
- A61M2025/015—Details of the distal fixation of the movable mechanical means
Definitions
- the present invention relates to a catheter. More specifically, the present invention relates to a catheter capable of easily changing the direction of the vicinity of the distal end inserted into the body cavity by operating the operation portion on the proximal end side arranged outside the body. .
- Patent Document 1 includes a leaf spring and two operation wires arranged on both sides of the leaf spring, and pulls the operation wire. A configuration for deflecting the distal end in two directions is disclosed. When the distal end is deflected using a leaf spring, the flatness of the curved portion of the catheter can be improved.
- the leaf spring In a catheter provided with a conventional leaf spring, the leaf spring is inserted through a lumen extending in the axial direction of the catheter in a tubular member in a free state. And the proximal end of the leaf
- the present invention has been made in view of these problems, and an object of the present invention is to provide a technique capable of further increasing the torsional rigidity of a catheter provided with a leaf spring.
- the catheter includes a tubular member, a leaf spring provided in the tubular member so that at least a part of an end portion along the axial direction of the tubular member is embedded in the tubular member, and an inside of the tubular member.
- a plurality of passages including an operation wire insertion passage provided in each of the first region on one main surface side of the leaf spring and the second region on the other main surface side of the leaf spring. It is characterized by.
- the torsional rigidity of the catheter provided with the leaf spring can be further increased.
- the end of the leaf spring may be embedded in the tubular member over the entire region in the axial direction.
- a plurality of tube portions for forming a plurality of passages are provided, and provided in the first region and the second region so that at least some of the tube portions are in contact with the main surface of the leaf spring. May be.
- the plurality of tube portions include at least two tube portions and one operation wire insertion tube portion, and in the first region and the second region, the two tube portions are leaf springs.
- the operating wire insertion tube portion may be provided in contact with the main surface and separated from the leaf spring.
- two tube portions are provided with a center line of a leaf spring along the catheter axial direction, and an operation wire insertion tube portion is provided between the two tube portions. May be.
- the operation wire insertion tube portions are circumscribed with the two tube portions, and the plurality of tube portions are arranged so as to be inscribed in a substantially circle centered on the central axis of the catheter. May be.
- the two tube portions are provided apart from each other, and in at least one of the first region and the second region, the two tube portions, the operation wire insertion tube portion, A member for adjusting the bendability of the catheter may be inserted into a region surrounded by the leaf spring.
- a plurality of electrodes may be provided in the distal end region, and a plurality of electrode wires may be inserted into at least a part of the plurality of passages other than the operation wire insertion passage.
- the torsional rigidity of the catheter provided with the leaf spring can be further increased.
- FIG. 1 is a schematic side view of a catheter according to Embodiment 1.
- FIG. 1 is a schematic plan view of a catheter according to Embodiment 1.
- FIG. It is a schematic sectional drawing on the AA line of FIG.
- FIG. 3 is a schematic perspective view of a cross section taken along line BB in FIG. 2.
- FIG. 2 is a cross-sectional view taken along the line CC of FIG. It is a schematic sectional drawing for demonstrating arrangement
- the catheter according to Embodiment 1 is an electrode catheter capable of tip deflection operation, and can be used for diagnosis or treatment of arrhythmia in the heart, for example.
- FIG. 1 is a schematic side view of the catheter according to the first embodiment
- FIG. 2 is a schematic plan view of the catheter according to the first embodiment.
- FIG. 3 is a schematic cross-sectional view taken along line AA in FIG. In FIG. 3, the leaf spring 30 and the operation wires 50a and 50b are not shown.
- the catheter 2 according to Embodiment 1 includes a tubular member 4, a handle 6, a tip electrode 10, and a plurality of ring-shaped electrodes 12a to 12k (hereinafter appropriately referred to as ring-shaped electrodes 12a to 12k). 12k is collectively referred to as “ring-shaped electrode 12”).
- the catheter 2 has a tip electrode 10 and a ring electrode 12 at the distal end of the tubular member 4.
- the tip electrode 10 is fixed to the tubular member 4 by, for example, an adhesive or melt bonding.
- the ring electrodes 12 a to 12 k are fixed to the outer peripheral surface of the tubular member 4 by caulking a metal ring having a diameter larger than the outer diameter of the tubular member 4, for example.
- the number of ring-shaped electrodes 12 is not particularly limited, and can be appropriately set according to the number of conducting wires that can be inserted into the tubular member 4.
- a handle 6 is attached to the proximal end of the tubular member 4.
- a handle 7 is attached to the handle 6 for performing a deflection operation (swing operation) of the distal end portion of the tubular member 4.
- the handle 6 and the knob 7 constitute an operation unit.
- the tubular member 4 includes an outer cylinder 4a having a single lumen structure, and an inner cylinder 4b having an accommodation space 20 provided in the lumen of the outer cylinder 4a.
- the inner cylinder 4b extends to a predetermined area from the distal end of the outer cylinder 4a.
- the inner peripheral surface of the outer cylinder 4a and the outer peripheral surface of the inner cylinder 4b are fixed in close contact with each other.
- methods such as adhesion and welding can be used.
- the accommodation space 20 is provided with a leaf spring and a plurality of passages (in FIG. 3, only the passages 31 and 32 (tubes 41 and 42) are shown) (FIGS.
- the tubular member 4 is preferably configured such that the flexibility near the distal end is relatively high and the flexibility near the proximal end is relatively low.
- the tubular member 4 is disposed adjacent to the member I having a Shore D hardness of 20 to 63 disposed on the distal end side and the proximal end side of the member I, and the Shore D hardness is 45 to 72.
- the tubular member 4 may have a structure in which the outer cylinder 4a and the inner cylinder 4b are integrated. Further, the tubular member 4 may have a multilayer structure of the outer cylinder 4a.
- the main part of the tubular member 4 is made of a synthetic resin such as polyolefin, polyamide, polyether polyamide, or polyurethane.
- the outer diameter of the tubular member 4 is generally about 0.6 to 3 mm and the length is about 500 to 1200 mm. In the present embodiment, the tubular member 4 has an outer diameter of about 2.0 mm and a length of about 1170 mm.
- the tip electrode 10 and the ring electrode 12 are made of a metal having good electrical conductivity such as aluminum, copper, stainless steel, gold, platinum, and the like. In addition, in order to give favorable contrast properties for X-rays, the tip electrode 10 and the ring electrode 12 are preferably made of platinum or an alloy thereof.
- the outer diameters of the tip electrode 10 and the ring electrode 12 are not particularly limited, but are preferably approximately the same as the outer diameter of the tubular member 4 and are generally about 0.5 to 3 mm.
- FIG. 4 is a schematic perspective view of the cross section along the line BB in FIG.
- FIG. 5 is a cross-sectional view taken along the line CC of FIG.
- the catheter 2 according to this embodiment includes a leaf spring 30 and a plurality of passages 31, 32, 33, 34, 35, 36 inside the tubular member 4.
- the leaf spring 30 is accommodated in the accommodating space 20.
- the leaf spring 30 is a plate-like body extending along the axial direction of the tubular member 4, and has two main surfaces 30 a and 30 b extending in the axial direction of the tubular member 4 and two side surfaces 30 c extending in the axial direction of the tubular member 4. , 30d.
- the leaf spring 30 has a distal end extending to the vicinity of the distal end of the tubular member 4 and a proximal end extending from the distal end of the tubular member 4 to a predetermined distance.
- the leaf spring 30 is provided in the accommodation space 20 so that the end 30e and the end 30f on the side along the axial direction of the tubular member 4 are embedded in the tubular member 4 (inner cylinder 4b). .
- the accommodation space 20 is partitioned into two regions. That is, the accommodating space 20 is partitioned into a first region 20A on the one main surface 30a side of the leaf spring 30 and a second region 20B on the other main surface 30b side of the leaf spring 30.
- the end portion 30e and the end portion 30f are embedded in the tubular member 4 (inner tube 4b)” means that, of the leaf spring 30, the side surfaces 30c and 30d extending in the axial direction of the tubular member 4 and both The area
- the leaf spring 30 has both end portions 30e and 30f in contact with the inner wall of the inner cylinder 4b over the entire axial direction. Thereby, since the leaf spring 30 is locked to the tubular member 4 over the entire length, the twist of the leaf spring 30 with respect to the tubular member 4 that may occur when the operation wire is operated can be restricted.
- the torsional rigidity of the catheter 2 is increased, and the flatness at the curved portion of the catheter 2 can be further improved.
- the existence range of the leaf spring 30 can be appropriately set according to the length of the curved region of the catheter 2 and the like.
- a plurality of passages are provided in each of the first region 20A and the second region 20B partitioned by the leaf spring 30.
- passages 31, 33, and 34 are provided in the first region 20A
- passages 32, 35, and 36 are provided in the second region 20B.
- the passage 31 provided in the first region 20A and the passage 32 provided in the second region 20B are used as operation wire insertion passages, respectively.
- the passages 33 and 34 provided in the first region 20A and the passages 35 and 36 provided in the second region 20B extend from the handle 6 and are electrically connected to the tip electrode 10 and the ring electrode 12. It is used as a passage for inserting a plurality of conducting wires.
- the plurality of passages 31 to 36 are formed by a plurality of tubes 41, 42, 43, 44, 45, 46 (tube portions), respectively. That is, in the present embodiment, a plurality of tubes 41 to 46 having a hollow structure are accommodated in the accommodation space 20, and the hollow portions of the plurality of tubes 41 to 46 serve as passages 31 to 36, respectively.
- Each of the tubes 41 and 42 corresponds to an operation wire insertion tube portion.
- the inner diameters of the tubes 41 and 42 that is, the diameters of the passages 31 and 32 are, for example, about 0.34 mm
- the inner diameters of the tubes 43 to 46 that is, the diameters of the passages 33 to 36 are, for example, about 0.45 mm. is there.
- the operation wire 50a is slidably inserted into the tube 41, and the operation wire 50b is slidably inserted into the tube 42.
- a partially spherical anchor 52a having a larger diameter than the operation wire 50a located in the tube 41 is formed.
- a partial spherical anchor 52b having a larger diameter than the operation wire 50b located in the tube 42 is formed at the distal end of the operation wire 50b.
- a recess 11 is formed inside the tip electrode 10, and the recess 11 is filled with solder 62.
- the anchors 52 a and 52 b are embedded in the solder 62.
- the proximal ends of the operation wires 50a and 50b are connected to the knob 7 shown in FIGS. Accordingly, by operating the knob 7 shown in FIGS. 1 and 2, the operation wires 50a and 50b are pulled, and the distal end of the catheter 2 can be swung.
- the distal end of the catheter 2 can be deflected in the direction of the arrow D1 in FIG. 2 by pulling the operation wire 50a, and the distal end of the catheter 2 is pulled in FIG. 2 by pulling the operation wire 50b. Can be deflected in the direction of arrow D2.
- the operation wires 50a and 50b are fixed to the tip electrode 10.
- the operation wires 50a and 50b are not particularly limited thereto, and the operation wires 50a and 50b are connected to the tubular member 4 or the like at the distal ends. It may be fixed.
- the tip 45 is electrically connected to the tip tip electrode 10 and the tip tip electrode lead wire 60 is inserted into the tube 45.
- the distal end of the tip tip electrode lead wire 60 is embedded in the solder 62 (not shown).
- the tip tip electrode lead wire 60 and the tip tip electrode 10 are electrically connected via the solder 62.
- the distal end of the tip tip electrode lead wire 60 may be electrically connected to the tip tip electrode 10 by welding.
- a plurality of ring electrode conducting wires (not shown) electrically connected to each of the ring electrodes 12 are inserted into the tubes 43, 44, and 46 while being insulated from each other.
- each ring-shaped electrode lead wire is electrically connected to each ring-shaped electrode 12 through the tubes 43, 44, 46 and the pores provided in the tubular member 4.
- the distal end of each ring electrode lead is fixed to the ring electrode 12 by soldering (not shown) or welding.
- the tube 41 is in contact with the tubes 43 and 44, and the tube 42 is in contact with the tubes 45 and 46.
- the tubes 41 to 46 are fixed in close contact with the inner peripheral surface of the inner cylinder 4b.
- methods such as adhesion and welding can be used.
- the two tubes 43 and 44 on the first region 20A side and the two tubes 45 on the second region 20B side. , 46 are provided in contact with the main surfaces 30a, 30b of the leaf spring 30, respectively.
- the operation wire insertion tubes 41 and 42 are provided apart from the leaf spring 30. Therefore, the leaf spring 30 can be bent with a smaller force than when the tubes 41 and 42 are closer to the leaf spring 30. Therefore, the operability of the catheter 2 is improved.
- the tubes 41 and 42 are provided, for example, so that the central axis is located outside a circle passing through the central axes of the tubes 43, 44, 45, and 46.
- the two tubes 43 and 44 are provided across the center line of the leaf spring 30 along the axial direction of the catheter 2.
- two tubes 45 and 46 are provided across the center line of the leaf spring 30 along the axial direction of the catheter 2.
- An operation wire insertion tube 41 is provided between the two tubes 43 and 44, and an operation wire insertion tube 42 is provided between the two tubes 45 and 46.
- the operation wire insertion tube 41 is provided so as to circumscribe the tubes 43, 44, and the operation wire insertion tube 42 is provided so as to circumscribe the tubes 45, 46.
- the strength of the catheter 2 can be increased.
- FIG. 6 is a schematic cross-sectional view for explaining the arrangement of the tubes 41 to 46.
- the plurality of tubes 41 to 46 are arranged so as to be inscribed in a virtual approximate circle S centered on the central axis of the catheter 2. .
- the cross-sectional shape of the tubular member 4 can be easily kept substantially circular.
- the catheter 2 can be easily inserted into the sheath or blood vessel.
- the favorable operativity of the catheter 2 can be ensured easily.
- the size (thickness) of the catheter 2 that can be inserted into the patient body cavity is generally determined by the size (diameter) of the maximum diameter portion of the tubular member 4. Therefore, when comparing the size of the maximum diameter portion with the same size, the space utilization rate of the catheter 2 can be increased in the case of the substantially circular cross section than in the case of the flat cross sectional shape or the cross sectional polygonal shape. That is, the number of conducting wires or the like that can be inserted into the tubular member 4 can be increased, and the multifunctional and high performance of the catheter 2 can be achieved.
- the strength balance of the tubular member 4 can be improved, and a structure that is stable against external forces from multiple directions can be obtained.
- the ring-shaped electrode 12 is fixed to the tubular member 4 by caulking a metal ring having a diameter larger than the outer diameter of the tubular member 4 and fastening it to the tubular member 4.
- the “substantially circle” means that it includes a perfect circle and a circle having a roundness to the extent that the above effect can be obtained.
- the leaf spring 30 may also be provided so that the side surfaces 30c and 30d are in contact with the virtual substantially circle S. In this case, the tubular member 4 can have a more stable structure against external force.
- two tubes 43 and 44 are provided apart from each other in the first region 20A
- two tubes 45 and 44 are provided apart from each other in the second region 20B. Therefore, in the first region 20A, a space 22A surrounded by the tubes 43, 44, the tube 41, and the leaf spring 30 is formed, and in the second region 20B, the tubes 45, 46, the tube 42, A space 22B surrounded by the leaf spring 30 is formed.
- a member for adjusting the bendability of the catheter 2 (hereinafter, appropriately referred to as a bending adjusting member) can be inserted into at least one of the spaces 22A and 22B as necessary.
- This bending adjusting member is, for example, a bar made of a metal such as SUS or NiTi or a resin.
- the hardness of the tubular member 4 can be changed, and thereby the bendability of the catheter 2 can be adjusted. Inserting a bending adjustment member into one of the spaces 22A and 22B, or inserting bending adjustment members having different flexibility into both the spaces 22A and 22B, thereby making the bending state of the catheter 2 non-target. Can do.
- the bending adjustment member is inserted into the space 22 ⁇ / b> A at a predetermined distance from the distal end of the catheter 2, so that the region on the distal end side of the bending adjustment member is the curved region of the catheter 2. Can do. Thereby, the bending range of the catheter 2 when bent in the direction of arrow D1 in FIG. 2 can be made shorter than the bending range of the catheter 2 when bent in the direction of arrow D2 in FIG.
- the bending adjustment member inserted into the first region 20A may be in contact with each of the tube 41, the two tubes 43 and 44, and the leaf spring 30. Further, the bending adjusting member inserted into the second region 20B may be in contact with each of the tube 42, the two tubes 45 and 46, and the leaf spring 30. In this case, the tubular member 4 can have a more stable structure against external force.
- the leaf spring 30 in the catheter 2 of the present embodiment is configured so that at least a part of the end portions 30e and 30f extending in the axial direction of the tubular member 4 is embedded in the tubular member 4. Is provided. Therefore, when the operation wires 50 a and 50 b are operated and a force is applied to the leaf spring 30, it is possible to prevent the leaf spring 30 from being twisted with respect to the tubular member 4. Thereby, the torsional rigidity of the catheter 2 can be improved, and as a result, the planarity in the curved region of the catheter 2 can be improved. This also makes it possible to further reduce the possibility that the catheter 2 will have a curved shape and the possibility that the tubular member 4 will be damaged by the twist of the leaf spring 30.
- the lead wires can be prevented from being entangled with each other as the catheter 2 is bent. Thereby, the situation where the unevenness
- the leaf spring 30 has both end portions 30e and 30f embedded in the tubular member 4 over the entire length, but the both end portions 30e and 30f are embedded in the tubular member 4 over a part of the entire length of the plate spring 30. It may be.
- the tubular member 4 only needs to be embedded in the tubular member 4 at least part of the end 30e and / or the end 30f extending in the axial direction as long as the effect of improving the torsional rigidity of the catheter 2 is obtained.
- the inner cylinder 4b when the accommodation space 20 formed in the inner cylinder 4b is regarded as one lumen, the inner cylinder 4b has a single lumen structure, and the inner cylinder 4b is disposed in the lumen of the inner cylinder 4b.
- the tubes 41 to 46 may be integrated with the tubular member 4. That is, the inner cylinder 4b may have a multi-lumen-like structure in which a plurality of lumens constituting the passages 31 to 36 and through holes for inserting the leaf springs 30 are formed.
- a tube portion is formed by a portion having a predetermined thickness from the inner wall of each lumen constituting the passages 31 to 36, and the tube portion corresponding to the passages 33 to 36 contacts the main surfaces 30 a and 30 b of the leaf spring 30.
- the inner cylinder 4b has a multi-lumen-like structure, the main surfaces 30a and 30b and the side surfaces 30c and 30d of the leaf spring 30 are entirely embedded in the tubular member 4, and the effect of improving the torsional rigidity of the catheter 2 is achieved. Can be further increased.
- the constituent material of the inner cylinder 4b is clogged in the area corresponding to the spaces 22A and 22B, but the bendability adjusting member is inserted into this area.
- Through-holes may be provided.
- the lead wires for electrodes are inserted through all the passages 34 to 37, but the passages 34 to 37 may not all be passages for inserting the lead wires.
- a thermocouple as a temperature sensor that detects the temperature in the vicinity of the distal end of the catheter 2 can be inserted into a part of the passages 34 to 37.
- the present invention can be used for a catheter.
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- Anesthesiology (AREA)
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Abstract
Description
実施形態1に係るカテーテルは、先端偏向操作が可能な電極カテーテルであり、たとえば心臓における不整脈の診断または治療に用いることができる。図1は、実施形態1に係るカテーテルの概略側面図であり、図2は、実施形態1に係るカテーテルの概略平面図である。図3は、図1のA-A線上の概略断面図である。なお、図3では、板バネ30、操作用ワイヤ50a,50bの図示を省略している。
Claims (7)
- 管状部材と、
前記管状部材の軸方向に沿った側の端部の少なくとも一部が前記管状部材に埋め込まれるようにして前記管状部材の内部に設けられた板バネと、
前記管状部材の内部において、前記板バネの一方の主表面側の第1領域および前記板バネの他方の主表面側の第2領域のそれぞれに設けられた、操作用ワイヤ挿通用通路を含む複数の通路をそれぞれ形成するための複数のチューブ部と、
を備え、前記第1領域および前記第2領域において、前記複数のチューブ部のうち少なくとも一部のチューブ部が前記板バネの主表面に接するように設けられていることを特徴とするカテーテル。 - 前記板バネは、前記端部が前記軸方向の全域にわたって前記管状部材に埋め込まれている請求項1に記載のカテーテル。
- 前記複数のチューブ部は、少なくとも2つのチューブ部と1つの操作用ワイヤ挿通用チューブ部とを含み、
前記第1領域および前記第2領域において、前記2つのチューブ部が前記板バネの主表面に接し、前記操作用ワイヤ挿通用チューブ部が前記板バネと離間して設けられている請求項1または2に記載のカテーテル。 - 前記第1領域および前記第2領域において、前記2つのチューブ部がカテーテルの軸方向に沿った板バネの中心線を挟んで設けられ、前記操作用ワイヤ挿通用チューブ部が前記2つのチューブ部の間に設けられている請求項3に記載のカテーテル。
- 前記第1領域および前記第2領域において、前記操作用ワイヤ挿通用チューブ部が前記2つのチューブ部と外接し、前記複数のチューブ部がカテーテルの中心軸を中心とする略円にそれぞれ内接するように互いに配置されている請求項4に記載のカテーテル。
- 前記第1領域および前記第2領域において、前記2つのチューブ部が互いに離間して設けられ、
前記第1領域および前記第2領域の少なくとも一方において、前記2つのチューブ部と、前記操作用ワイヤ挿通用チューブ部と、前記板バネとで囲まれた領域に、カテーテルの曲げ性を調節するための部材が挿入されている請求項4または5に記載のカテーテル。 - 遠位端領域に複数の電極を備え、
前記複数の通路のうち、操作用ワイヤ挿通用通路以外の少なくとも一部の通路に前記複数の電極用の導線が挿通されている請求項1乃至6のいずれか1項に記載のカテーテル。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020127020862A KR101246970B1 (ko) | 2010-03-30 | 2011-03-18 | 카테터 |
CN201180007093.5A CN102791318B (zh) | 2010-03-30 | 2011-03-18 | 探针 |
HK13103955.2A HK1176321A1 (en) | 2010-03-30 | 2013-04-01 | Catheter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2010076988A JP4679666B1 (ja) | 2010-03-30 | 2010-03-30 | カテーテル |
JP2010-076988 | 2010-03-30 |
Publications (2)
Publication Number | Publication Date |
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WO2011121931A2 true WO2011121931A2 (ja) | 2011-10-06 |
WO2011121931A3 WO2011121931A3 (ja) | 2011-12-01 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2011/001650 WO2011121931A2 (ja) | 2010-03-30 | 2011-03-18 | カテーテル |
Country Status (6)
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JP (1) | JP4679666B1 (ja) |
KR (1) | KR101246970B1 (ja) |
CN (1) | CN102791318B (ja) |
HK (1) | HK1176321A1 (ja) |
TW (1) | TWI450740B (ja) |
WO (1) | WO2011121931A2 (ja) |
Cited By (2)
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WO2013058088A1 (ja) * | 2011-10-21 | 2013-04-25 | 日本ライフライン株式会社 | 電極カテーテル |
JP5614508B1 (ja) * | 2014-02-27 | 2014-10-29 | 住友ベークライト株式会社 | カテーテルおよびカテーテルの製造方法 |
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JP5697273B2 (ja) * | 2013-07-25 | 2015-04-08 | 日本ライフライン株式会社 | 先端偏向操作可能カテーテル |
JP6071852B2 (ja) * | 2013-11-25 | 2017-02-01 | 日本ライフライン株式会社 | 先端偏向操作可能カテーテル |
KR102410823B1 (ko) | 2014-02-21 | 2022-06-21 | 인튜어티브 서지컬 오퍼레이션즈 인코포레이티드 | 기계식 조인트들, 및 관련된 시스템들과 방법들 |
JP6752717B2 (ja) * | 2014-04-02 | 2020-09-09 | インテュイティブ サージカル オペレーションズ, インコーポレイテッド | ねじれている通路を持つ作動要素ガイド |
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KR102092926B1 (ko) * | 2015-02-24 | 2020-03-25 | 주식회사 한독칼로스메디칼 | 카테터 및 이를 포함하는 신경차단 장치 |
JP7167307B2 (ja) * | 2019-03-15 | 2022-11-08 | 日本ライフライン株式会社 | 心腔内除細動カテーテル |
US12042209B2 (en) | 2019-05-16 | 2024-07-23 | Intuitive Surgical Operations, Inc. | Insert guide members for surgical instruments, and related devices, systems, and methods |
CN114642481A (zh) * | 2020-12-18 | 2022-06-21 | 杭州诺生医疗科技有限公司 | 可调弯穿刺针及穿刺*** |
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JPH09509865A (ja) * | 1994-03-10 | 1997-10-07 | ババリア・メディツィン・テヒノロギー・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | 流体若しくは薬物を注入するためのカテーテル |
JP2006255401A (ja) * | 2005-02-14 | 2006-09-28 | Biosense Webster Inc | 面内でたわむ湾曲操作可能なカテーテル |
JP2008245766A (ja) * | 2007-03-29 | 2008-10-16 | Japan Lifeline Co Ltd | 先端偏向操作可能カテーテル |
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US20020147427A1 (en) * | 1999-12-21 | 2002-10-10 | Joseph J. Chang | Safety catheter with tortuous fluid path |
JP4173531B1 (ja) * | 2008-05-20 | 2008-10-29 | 日本ライフライン株式会社 | カテーテル用ハンドル |
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2010
- 2010-03-30 JP JP2010076988A patent/JP4679666B1/ja active Active
-
2011
- 2011-03-18 KR KR1020127020862A patent/KR101246970B1/ko active IP Right Grant
- 2011-03-18 WO PCT/JP2011/001650 patent/WO2011121931A2/ja active Application Filing
- 2011-03-18 CN CN201180007093.5A patent/CN102791318B/zh active Active
- 2011-03-28 TW TW100110529A patent/TWI450740B/zh not_active IP Right Cessation
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2013
- 2013-04-01 HK HK13103955.2A patent/HK1176321A1/xx not_active IP Right Cessation
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JPH07163514A (ja) * | 1993-12-10 | 1995-06-27 | Machida Endscope Co Ltd | 湾曲装置 |
JPH09509865A (ja) * | 1994-03-10 | 1997-10-07 | ババリア・メディツィン・テヒノロギー・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | 流体若しくは薬物を注入するためのカテーテル |
JP2006255401A (ja) * | 2005-02-14 | 2006-09-28 | Biosense Webster Inc | 面内でたわむ湾曲操作可能なカテーテル |
JP2008245766A (ja) * | 2007-03-29 | 2008-10-16 | Japan Lifeline Co Ltd | 先端偏向操作可能カテーテル |
JP2010063708A (ja) * | 2008-09-11 | 2010-03-25 | Japan Lifeline Co Ltd | 除細動カテーテル |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013058088A1 (ja) * | 2011-10-21 | 2013-04-25 | 日本ライフライン株式会社 | 電極カテーテル |
JP2013085885A (ja) * | 2011-10-21 | 2013-05-13 | Japan Lifeline Co Ltd | 電極カテーテル |
JP5614508B1 (ja) * | 2014-02-27 | 2014-10-29 | 住友ベークライト株式会社 | カテーテルおよびカテーテルの製造方法 |
Also Published As
Publication number | Publication date |
---|---|
JP4679666B1 (ja) | 2011-04-27 |
CN102791318B (zh) | 2014-05-14 |
HK1176321A1 (en) | 2013-07-26 |
KR101246970B1 (ko) | 2013-03-25 |
WO2011121931A3 (ja) | 2011-12-01 |
TW201200183A (en) | 2012-01-01 |
JP2011206268A (ja) | 2011-10-20 |
TWI450740B (zh) | 2014-09-01 |
CN102791318A (zh) | 2012-11-21 |
KR20120096946A (ko) | 2012-08-31 |
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