WO2004050163A1 - 医療用ガイドワイヤー - Google Patents
医療用ガイドワイヤー Download PDFInfo
- Publication number
- WO2004050163A1 WO2004050163A1 PCT/JP2003/014496 JP0314496W WO2004050163A1 WO 2004050163 A1 WO2004050163 A1 WO 2004050163A1 JP 0314496 W JP0314496 W JP 0314496W WO 2004050163 A1 WO2004050163 A1 WO 2004050163A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tip
- guide wire
- wire
- length
- blood vessel
- Prior art date
Links
Classifications
-
- 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
- A61M25/09—Guide wires
-
- 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
-
- 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
- A61M25/09—Guide wires
- A61M2025/09058—Basic structures of guide wires
- A61M2025/09075—Basic structures of guide wires having a core without a coil possibly combined with a sheath
-
- 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
- A61M25/09—Guide wires
- A61M2025/09175—Guide wires having specific characteristics at the distal tip
-
- 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
- A61M25/0041—Catheters; Hollow probes characterised by the form of the tubing pre-formed, e.g. specially adapted to fit with the anatomy of body channels
Definitions
- the present invention relates to a medical guide wire used for introducing a force tenenore or an introducer kit used for treatment or examination into a target site of a blood vessel.
- a medical guide wire is used to introduce a catheter or an introductory circuit into a blood vessel and place it in the affected area when performing diagnosis, treatment, etc. Therefore, it is necessary to shape the tip of the medical guide wire that can follow the shape of the blood vessel without damaging the blood vessel inside the bifurcated or meandering blood vessel.
- the introduction of catheters into blood vessels has been transitioning from femoral (femoral) to brachial (upper arm) or radial (wrist), and this demand is becoming more and more strong.
- the shape of the commercially available guider tip is made (shaving). Furthermore, in the clinical site, the tip shape is an important factor in terms of function as it is shaped (reshaped) by a doctor with fingers according to the shape of the bifurcation.
- Brachial or the tip of the wire used when pushing from the radial towards the heart, has a J-shaped standard to prevent entry into the bifurcated blood vessel during insertion (meander). It tends to be used.
- an inserter When inserting a medical guide wire whose distal end is shaped into a curved shape into an introducer needle, a catheter or a sheath, an inserter is used as an insertion aid.
- a force tape or a sheath the insertion is extremely difficult without the inserter.
- Patent Document Japanese Patent Application Laid-Open No. 7-155382 discloses one in which the insertability into the inside of the server is improved.
- the tip of the medical guide wire as described above is shaped in a J-shape, a double angle shape or an andal shape. Among them, in the case of introducing a guide wire from brachial or radial, a medical guide wire having a J-shaped tip is often not able to be smoothly pushed into a blood vessel.
- the guide wire may be pulled out of the sheath frequently during surgery, and in the case of the J-type guide wire described in Patent Document 1 above, each time the wire is inserted again into the sheath, it may be like a pincher. They must use assistive devices and have the problem of requiring unnecessary work and time for doctors and the like.
- a guide wire Japanese Patent Application Laid-Open No. 10-146330
- the purpose is to have a tip shape that allows guide wire introduction more smoothly than brachial or J-wire used for introducing guide wire toward the heart from radial.
- a guidewire for easy operation it is a guidewire, and does not require an extra auxiliary tool such as an inserter, which is required when inserting a wire into the introduced tK catheter or sheath. It is providing a medical guide wire suitably used.
- the ease with which the guide wire is introduced into the blood vessel, the ease of insertion of the introducer or the catheter into the connector part, the resistance to indentation of the blood vessel during the movement to the treatment site, and The degree of mis-invasion into the bifurcated vessels is important for the performance of the guide wire, and is to provide a guide wire with an excellent balance of these performances.
- the invention according to claim 1 is a medical guide wire comprising a metal core wire surface-coated with a resin, and having a smooth curvilinearly bent tip portion, wherein the direction extension line of the tip portion and the wire It is a medical guide wire used for a big angiography or introducer characterized in that the angle between the baselines is 40 to 70 degrees.
- the invention according to claim 2 is a medical guide wire comprising a metal core wire surface-coated with a resin, and having a tip portion bent into a smooth curvilinear shape, and extending in the direction of the tip end portion.
- Medical use for beak-type angiography or introducer characterized in that the angle between the wire and the wire base is 40 to 70 degrees and the width dimension of the curved portion is 2 mm or more and less than 5 mm. It is a guide wire.
- the diameter including the resin layer is 0.46 to 1.02 mm (claim 3)
- the metal core wire is a Ni-Ti-based alloy. It is desirable to have something (claim claim 4).
- a guide wire having a tip shaped to the diameter and angle defined in the present invention is highly effective in suppressing the meandering to the bifurcation of the blood vessel as compared to the conventional shaped one. Yes) Compared with the J-shaped wire, the load during pull-in and pull-out resistance were smaller, the blood vessel surface was less likely to be damaged, and the operability was shown to be good. Furthermore, although conventional J-shaped wires require an inserter when introduced into introducer needles, sheaths or catheters, the guide wire according to the present invention is unnecessary, and it has been possible to improve operation. Description
- FIG. 1 is a side view showing the shape of one example of a guide wire obtained by the present invention.
- FIG. 2 is a partially enlarged view showing an example in the case where the tip curve portion is flat-processed.
- FIG. 3 is the same as another example.
- FIG. 4 is the same as another example.
- FIG. 5 are cross-sectional views taken along the line X-X and Y-Y in Figs. 2 to 3, respectively.
- FIG. 6 is a side view showing the shape of a conventional J-shaped wire.
- FIG. 7 is a side view showing the shape of a conventional angled guide wire.
- the core wire is made of metal in order to enable smooth manipulation of the guide wire tip shape without causing the bifurcated blood vessel to be meandered while being introduced into the heart and the resistance value at the time of pressing and pulling being small.
- Surface has been coated in a smooth curvilinear shape with resin-coated tip, and the angle between the direction extension of the tip and the wire base line is shaped in the range of 40 ° to 70 °, excellent in operability High performance medical guide wire.
- the conventional J-shaped guide wire can be inserted into the introducer indwelling needle or catheter connector in a state in which the distal end portion is straightened. Is the problem. Then, when the guide wire was pushed from the wrist artery to the brachial artery in a substantially straight state, the conventional J-type guide wire had a strong push resistance and a large possibility of damaging the blood vessel wall. Next, when the guide wire tip reaches the brachial artery with a large blood vessel diameter, the guide wire returns to the original J-shaped tip curve shape due to the nature such as superelasticity of the substantially straight tip portion. It travels further inside the blood vessel with that shape, but the risk of misintroducing blood vessels into the head at the bifurcation to the heart and head becomes a problem.
- FIG. 1 is a plan view showing the shape of a guide wire according to the present invention.
- the angle between the extension of the tip and the wire base line is the angle described in the figure and is the angle defined as described later.
- a is 40 to 70 degrees, preferably 4 to 60 degrees.
- a is 40 to 70 degrees, preferably 4 to 60 degrees
- insertion can be easily made into the indoloducer indwelling needle or catheter connector without using an inserter, and to a branched blood vessel
- the misintruderability tends to be improved as compared with the above-mentioned wire (7 to 120 degrees) having a large a.
- insertion can be made into the indweller indwelling needle or catheter connector part without using a pincher, but those with a large gap are more penetrable Tend to decline.
- a wire having a tip bent at the above-described angle is referred to as a beak type.
- the horizontal line in a state where the wire 1 is placed horizontally without applying a force is the wire base line 2
- the angle formed by the intersection with the direction extension line 3 of the tip of the tip 4 is defined as
- the distal extension means the extension of the direction of the portion of the smoothly bent tip which is in the direction from the tip to the base of the curved portion.
- the part is a straight line is a direction extension of the straight line.
- the tip direction line is the line connecting the center points at the point with the same length as the tip and the width of the tip curve towards the tip and the curve.
- T be an extension in the tip direction. For example, if the width of the tip curve is 6 mm, Let the line connecting the center points at 3 mm be the tip direction line, and let the extension line be the tip direction extension line. That is, in the present invention, since the tip straight portion is included, the direction extension line in the definition means a direction extension line of the tip straight portion.
- the entire length of the tip curve portion of the guide wire of the present invention is a length L from the point A at the start of bending of the base line to the tip B, and the width of the curve portion is indicated by R in the figure.
- L is 0 to 2 O mm
- the length of the curved portion is 2 to 30 mm.
- R is 5 to L O mm
- L is 10 to 3 O mm
- R is 5 to 10 mm
- the tip straight portion has a length of 3 to 15 mm.
- R is 5 to 9 mm, more preferably, the length of the straight end of the tip is 5 to 7 mm R is 6 to 8 mm.
- ⁇ is 45 ° to 60 ° and the length of the straight end portion is 8 to 15 mm
- R is 4 to 8 mm, and more preferably, the length of the straight end portion is 9 to 13 mm
- the hour R is 5 to 7 mm.
- the tip shape in the present invention is determined by the tip angle ⁇ , the length C of the tip straight portion, the width R of the tip curve portion, and the length L of the tip curve portion.
- Fig. 1 2 is the base H on the root side of the guide wire 1
- 3 is the base line on the tip side
- 4 is the straight portion of the wire tip
- the length of this portion is the length C of the tip straight portion.
- the tip angle ⁇ is the tip angle ⁇ .
- the length of the straight end of the tip is 1 to 12 mm, preferably 2 to 10 mm, more preferably 3 to 8 mm, Preferably, it is 3 to 7 mm.
- R decreases to 4 mm or less
- the length of the straight end of the tip and the length L of the curved end of the tip tend to be relatively short.
- large R (5 to 8 mm) wires tend to be relatively long
- the metal used for the guide wire core wire of the present invention is a metal generally used for the application, and a nickel titanium-based material. Alloy, copper-based alloy, aluminum-based alloy or stainless steel Nickel-titanium based alloys are preferably employed.
- the diameter of the resin layer of the guide wire used in the present invention is 0.406 to 1.02 mm (0.018 to 0.040 inch), preferably 0.56 mm to 1.02 mm (0.202). 0. 040 inches), more preferably 0.64 mm to 10.2 mm (0. 025 to 0. 040 inches), most preferably 0.89 mn! It is ⁇ 1. 02 mm (0. 035 to 0. 040 inches). If the diameter is 0.46 mm or less, the probability of misintroduction to the branch blood vessel is increased due to excessive tip flexibility even in the tip shape defined in the present invention.
- the bending load (the bending load when the center point of 14 mm of the support point is pushed in by 0.8 mm) showing the flexibility of the guide wire at the curved part of the guide wire tip is 0.5 N to 0. 01 N, preferably It is preferably from 0.4N to 0. 03N, more preferably from 0. 03N to 0. 05N, most preferably from 0.2N to 0. 07N.
- the flexibility of the guide wire is greatly affected by the diameter including the resin layer, but the diameter of the metal used for the core wire and the shape of the tip of the core wire It is possible to control more accurately by factors such as taper shape which becomes smaller gradually, temperature control in thermal processing, etc. More specifically, the required physical properties of the guide wire tip include rapid shape change in the blood vessel (speed of return from the stretched state to the beak tip shape), processability (shape according to the target shape) It is desirable that the spring stiffness of the tip curve be optimized in terms of flexibility, pushability, etc., and that the tip should have a flexibility that does not damage the vessel wall. Therefore, with regard to the tip shape of the guide wire, the setting of the taper forming method of the metal core tip and the heat treatment condition of the tip shape becomes important together with the shape of the guide wire including the resin layer.
- the shape of the nickel-titanium-based beak-type guide wire core wire metal and the tip shape etching method will be described in detail below.
- the diameter of the core wire of the curved portion used in the present invention is 0.10 to 0.4 mm, preferably 0.30 to 0.3 mm, more preferably 0.50 to 0.2 mm, most preferably 0. 08 It is ⁇ 0.15 mm.
- the guide wire of the present invention has a total length of about 1500 to 230 Omm, and has a core portion of the base line portion. The diameter is between 0.3 and 0.9 mm.
- the operability of the wire is further improved by setting the point of 100 to 200 mm from the tip to the root of the curved portion as the middle point and reducing the core wire diameter from the middle point to the tip.
- a generally used guide wire has a curved start point at about 30 mm at the tip, and a diameter of the base side of the core wire is tapered toward the tip from about 0.2 mm, and the leading edge is about 0 .
- a constant diameter of about 0.1 mm from the tip of 30 mm can be used.
- the tapering of the curved portion may be a continuous or stepwise taper structure such as one step, two steps or three steps.
- the position of the curve where the taper is to be provided is determined by experiment.
- the diameter of the metal core wire of the leading end portion is 0.01 to 0.20 mm, preferably 0.30 to 0.15 mm, more preferably 0.04 to 0.12 mm, most preferably 0. It is 05 to 0.10 mm. In order to reduce the damage to the vessel wall, it is desirable to reduce the stiffness by reducing the diameter of the metal core at the tip.
- FIGS. 5 (a) and 5 (b) are cross-sectional views taken along the line X-X and Y-Y in FIGS. The figure is shown respectively.
- Fig. 2 is a flat portion of the entire curved part L, and the metal core 1 with a cross section of a perfect circle and a diameter of 0.1 m m is one direction as shown in Fig. 5 (b) from the state of Fig. 5 (a)
- the cross-section is flattened to a thickness of 0.10 to 0.27 mm (preferably 0.80 mm).
- FIG. 3 flat-processes the center part of the curve part L similarly to the above.
- FIG. 4 is obtained by flattening the tip of the curved portion L in the same manner as described above.
- the flexibility and processability of the tip of the guide wire are improved by flattening Do.
- the rigidity (flexibility) of the tip curve is determined by the heat treatment temperature at the time of tip shaping when the core metal is a nickel-titanium alloy, in addition to the control of the diameter of the tip of the guide wire as described above. It is already known that it is also possible. That is, by setting the temperature at the time of forming the tip of the guide wire at 400 to 500 for a predetermined time, it is possible to easily set the desired angle and to make the rigidity.
- the tip curve is shaped under the conditions described above, in the case of a nickel titanium alloy, regardless of the work hardening type, wire drawing type, cooling wire drawing type, etc., all the functions of superelasticity are imparted and parts thereof Tends to be relatively stiff.
- the performance of the tip of various beak-type guide wires will be determined by the combination of the shape of the metal core of the tip of the guide wire (diameter of the tip, tapering and flattening) and heat treatment conditions.
- the preferred metal is a nickel titanium alloy having excellent introducibility that is less likely to cause permanent strain. More preferably, a work-hardening type (Japanese Patent Publication No. 6-83 7 2 6), a wire-hardening-type, and a wire-drawing type (specially, a nickel-titanium-based alloy is easy to shape or re-shaving a tip and hard to cause permanent deformation). Metals that are mechanically straightened in a straight line without heat treatment after cooling surface drawing or surface drawing, and do not show stress-induced martensitic transformation (Japanese Patent Application Laid-Open No. 200 0 5 0- 14014) and the like.
- the tip shape or reshing is easy, and permanent deformation is unlikely to occur, and further heat treatment after wire drawing processing with excellent pushability, torque transmission property, and reinsertability.
- It is a nickel-titanium alloy that is mechanically straightened and does not show stress-induced martensitic transformation.
- heat treatment 400 to 550 degrees
- the tip heat-treated portion has a super-elasticity non-permanent strain [7.
- a nickel-titanium beak type with tip superelasticity and cooling drawing except for the tip.
- Guidewire A guide wire will be manufactured.
- FIG. 6 is a side view showing the shape of a conventional guide wire called a J-shaped wire, and the angle ⁇ defined in the present invention is 0 ⁇ 5 degrees, that is, the wire base 5 and the distal extension 6 are almost It is parallel.
- the wire of the present invention when the wire of the present invention is pushed into a silicone tube of a blood vessel model with an inner diameter of 3 mm, the wire of the present invention performs insertion smoothly and with less variation. It was less than one tenth of the pushing force. Furthermore, the pull-out resistance of the guide wire obtained by the present invention was about one fourth of that of the J-type wire. From the above model experiments, it is shown that the guide wire obtained by the present invention can be easily pushed to the target affected area without damaging the blood vessel as compared with the J-shaped wire, and can be recovered safely after treatment. .
- Fig. 7 is a side view showing a guide wire called a conventional angled wire, in which the angle a defined by the present invention (the angle between the base line 7 and the distal extension 8) is 120 degrees or more. is there.
- the angle a defined by the present invention the angle between the base line 7 and the distal extension 8 is 120 degrees or more. is there.
- Nickel-titanium-based alloy, copper-based alloy, aluminum-based alloy, stainless steel, etc. are used as the metal of the core wire of the guide wire, but the guide wire is adapted to the shape of the blood vessel without damaging the blood vessel within the bifurcated blood vessel. To push it in, flexibility and shape recovery are required. In recent years, catheters have been pushed into peripheral blood vessels, and the demand has been increasing. Conventionally, mainly used as guide wire core material Although a steel wire rod has been used, passing it through a serpentine blood vessel causes permanent deformation and remains deformed, it can not be pushed into the peripheral blood vessel, and it can not be reinserted. there were.
- the core metal As a material for coating the core metal, it is necessary to impart ease of coating and a further lubricity function. From the viewpoints of: 1) From polyurethane, polyamide elastomer, polyester elastomer, polyolefin elastomer, or fluorine-based or the like A flexible polymer such as a polymer alloy containing such polymer as a main component is used. The polymer coating is soft enough not to interfere with the bending of the core metal such as resin, and the outer surface is a smooth surface having no substantial unevenness. It is also possible to mix fine powders of tungsten, bismuth, barium and the like as an X-ray contrast material in the polymer coating material.
- the surface of the polymer covering the core metal is coated with a hydrophilic polymer in order to reduce the frictional resistance with the inner surface of the catheter and the blood vessel and to exhibit good slidability.
- a hydrophilic polymer one having a hydrophilic group such as a hydroxyl group, an amide group, an amino group, a carboxylic acid group, a carboxylic acid group, a sulfonic acid group, a sulfonic acid group, and a pyrrolidone group is preferable. .
- boule ether to maleic anhydride maleic acid copolymer vinyl ether to maleic anhydride copolymer salt, polyether, polyacrylate, polyvinylidene pyrrolidone and the like are used.
- the invention will now be described by way of example.
- a nickel titanium-based alloy (diameter 0.5 mm), in which the core metal is mechanically straightened in a straight line and coated with a medical grade urethane that does not show stress-induced martensitic transformation, to a diameter of 0.89 mm.
- a guide wire lubricated with polyvinyl pyrrolidone was used to make a guide wire with an angle of 45 ° in the tip shape of FIG. 1 defined in the present invention.
- the width R of the curved portion was 9.0 mm
- the length L of the curved portion was 1 1 .O mm
- the length C of the straight portion at the tip was 4.5 mm.
- the diameter including the urethane coating at the tip was 0.8 mm, and the diameter of the core alloy wire was 0.1 mm. Obtained As a result of measuring the pushing length and resistance value three times when the guide wire was pushed into a silicone tube of 3 mm in diameter, which is a blood vessel model, at a speed of 500 mm / min, the load at pushing was an average of 0. 0. It was fixed at 5 N, and it was confirmed that the tube could move smoothly inside. Furthermore, as a result of measuring the resistance value when pulling out the guide wire from the tube, the average resistance value at pulling out is 0.5 N, and the difference between the high and the minimum resistance value is smaller than when pushing in The guide wire could be recovered from inside the tube. Comparative example 1
- Example 2 When a J-shaped wire with an angle of the tip shape defined in the present invention of 0 ⁇ 5 degrees is created using a guide wire made of the same material as in Example 1 and measured four times in the same manner as in Example 1. As a result, the shape in the tube at the time of pressing is bent, so the average load per pressing at the time of pressing is not constant at 0.55 to 0.55 N, compared to that of the present invention. It turned out that the load of 5 times or more is heavy. As a result of measuring the average resistance value at the time of drawing out, it was found that it showed a constant value of 0.2 N, but it tended to be higher than that of the present invention.
- Example 2
- Example 3 The silicone tube was replaced with a 4 French catheter using the same J-shaped guide wire as in Comparative Example 1, and the indentation resistance was measured three times. As a result, the average load at indentation was 0.3 N. Larger tendency compared to the wire obtained by the invention Yes, and the variation was also large. It was also found that the average resistance value at the time of drawing was also 0.35 N, which tends to be larger than that of the wire obtained in the present invention of Example 2.
- Example 3 The silicone tube was replaced with a 4 French catheter using the same J-shaped guide wire as in Comparative Example 1, and the indentation resistance was measured three times. As a result, the average load at indentation was 0.3 N. Larger tendency compared to the wire obtained by the invention Yes, and the variation was also large. It was also found that the average resistance value at the time of drawing was also 0.35 N, which tends to be larger than that of the wire obtained in the present invention of Example 2.
- Example 3 Example 3
- Example 4 When a conventional guide wire shaped into a tip angle of 135 degrees as defined in the present invention is pushed into a silicone tube in the same manner as in Example 3, the tip angle is defined as 60 degrees as defined in the present invention. The probability of misintroducing at the bifurcation was greater than that of a shaped guide wire.
- Example 4
- a guide wire whose tip was shaped at an angle of 70 degrees as defined in the present invention could be introduced into the sheath or catheter ⁇ without using a sinter. Comparative example 4
- a guide wire with a J-shaped tip was extremely difficult to introduce into the sheath or catheter when the inserter was not used.
- the guide wire of the present invention can be used for contrast enhancement or inducer for the brain, abdomen, etc. besides coronary artery.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003280795A AU2003280795A1 (en) | 2002-12-03 | 2003-11-13 | Guide wire for medical treatment |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-382948 | 2002-12-03 | ||
JP2002382948A JP2004181184A (ja) | 2002-12-03 | 2002-12-03 | 医療用ガイドワイヤー |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004050163A1 true WO2004050163A1 (ja) | 2004-06-17 |
Family
ID=32463681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/014496 WO2004050163A1 (ja) | 2002-12-03 | 2003-11-13 | 医療用ガイドワイヤー |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP2004181184A (ja) |
KR (1) | KR20050090990A (ja) |
CN (1) | CN1720076A (ja) |
AU (1) | AU2003280795A1 (ja) |
WO (1) | WO2004050163A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2668972A3 (en) * | 2007-10-19 | 2014-03-26 | Pressure Products Medical Supplies, Inc. | Transseptal Guidewire |
CN104053470A (zh) * | 2012-01-30 | 2014-09-17 | 泰尔茂株式会社 | 导丝 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5580802B2 (ja) * | 2004-11-01 | 2014-08-27 | テルモ株式会社 | 医療用ガイドワイヤ |
JP4907945B2 (ja) * | 2004-11-01 | 2012-04-04 | テルモ株式会社 | 医療用ガイドワイヤ |
CN101384293B (zh) | 2006-03-06 | 2013-04-24 | 泰尔茂株式会社 | 导丝 |
KR101632457B1 (ko) | 2009-04-14 | 2016-06-21 | 테루모 가부시키가이샤 | 의료용 가이드 와이어 |
WO2011081134A1 (ja) * | 2009-12-28 | 2011-07-07 | テルモ株式会社 | ガイドワイヤ |
JP6042080B2 (ja) * | 2012-03-09 | 2016-12-14 | テルモ株式会社 | ガイドワイヤ |
CN105617513B (zh) * | 2016-03-29 | 2021-09-21 | 中国人民解放军第二军医大学 | 几何立体导丝 |
CN106264687B (zh) * | 2016-11-01 | 2018-11-20 | 中南大学湘雅医院 | 可调节式动静脉穿刺针及与其配套的留置套管和外保护套 |
JP6596470B2 (ja) * | 2017-07-20 | 2019-10-23 | トクセン工業株式会社 | 医療処置具用ワイヤ及びガイドワイヤ |
EP3815731B1 (en) * | 2018-06-29 | 2023-03-15 | Asahi Intecc Co., Ltd. | Guide wire |
CN109876280A (zh) * | 2019-04-03 | 2019-06-14 | 张健 | 一种北斗星塑形超滑导丝组件 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62181062A (ja) * | 1986-02-04 | 1987-08-08 | 日本シヤ−ウツド株式会社 | カテ−テル・イントロデユ−サ |
JPH02180277A (ja) * | 1988-12-29 | 1990-07-13 | Terumo Corp | ガイドワイヤー |
JPH04236965A (ja) * | 1990-07-25 | 1992-08-25 | C R Bard Inc | 可動のコアガイドワイヤー |
JPH04108555U (ja) * | 1990-08-29 | 1992-09-18 | 株式会社パイオラツクス | カテ−テル用ガイドワイヤ− |
JPH07255856A (ja) * | 1994-03-23 | 1995-10-09 | Kato Hatsujo Kaisha Ltd | 医療用ガイドワイヤの先端部付形方法 |
JP2002058748A (ja) * | 1998-12-11 | 2002-02-26 | Paiorakkusu:Kk | カテーテル用ガイドワイヤ、及びカテーテル用ガイドワイヤの製造方法 |
-
2002
- 2002-12-03 JP JP2002382948A patent/JP2004181184A/ja active Pending
-
2003
- 2003-11-13 WO PCT/JP2003/014496 patent/WO2004050163A1/ja active Application Filing
- 2003-11-13 AU AU2003280795A patent/AU2003280795A1/en not_active Abandoned
- 2003-11-13 CN CNA200380105092XA patent/CN1720076A/zh active Pending
- 2003-11-13 KR KR1020057010147A patent/KR20050090990A/ko not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62181062A (ja) * | 1986-02-04 | 1987-08-08 | 日本シヤ−ウツド株式会社 | カテ−テル・イントロデユ−サ |
JPH02180277A (ja) * | 1988-12-29 | 1990-07-13 | Terumo Corp | ガイドワイヤー |
JPH04236965A (ja) * | 1990-07-25 | 1992-08-25 | C R Bard Inc | 可動のコアガイドワイヤー |
JPH04108555U (ja) * | 1990-08-29 | 1992-09-18 | 株式会社パイオラツクス | カテ−テル用ガイドワイヤ− |
JPH07255856A (ja) * | 1994-03-23 | 1995-10-09 | Kato Hatsujo Kaisha Ltd | 医療用ガイドワイヤの先端部付形方法 |
JP2002058748A (ja) * | 1998-12-11 | 2002-02-26 | Paiorakkusu:Kk | カテーテル用ガイドワイヤ、及びカテーテル用ガイドワイヤの製造方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2668972A3 (en) * | 2007-10-19 | 2014-03-26 | Pressure Products Medical Supplies, Inc. | Transseptal Guidewire |
CN104053470A (zh) * | 2012-01-30 | 2014-09-17 | 泰尔茂株式会社 | 导丝 |
Also Published As
Publication number | Publication date |
---|---|
AU2003280795A1 (en) | 2004-06-23 |
KR20050090990A (ko) | 2005-09-14 |
JP2004181184A (ja) | 2004-07-02 |
CN1720076A (zh) | 2006-01-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1105181B1 (en) | Preformed wire guide | |
JP3494666B2 (ja) | 超弾性を有する成形可能なガイドワイヤ | |
JP5512716B2 (ja) | ガイドワイヤ | |
EP1652548B1 (en) | Medical guide wire | |
JP6069532B2 (ja) | 形状記憶先端部を備えたセンサ・ガイド・ワイヤ | |
JPH0737199U (ja) | ガイドワイヤー | |
JP2002511292A (ja) | 正確なカテーテル位置決めのためのガイドワイヤ | |
WO2004050163A1 (ja) | 医療用ガイドワイヤー | |
JP2005508229A (ja) | 加工硬化擬弾性ガイドワイヤ | |
JP2016536029A (ja) | 改良されたねじり延性を備えるガイドワイヤコア | |
JP2004313570A (ja) | ガイドワイヤ | |
JP2011206175A (ja) | ガイドワイヤ | |
JP2005144104A (ja) | 操作性の良好な医療用ガイドワイヤー | |
JP4188663B2 (ja) | ガイドワイヤ | |
JP3288619B2 (ja) | ガイドワイヤー | |
JP4493098B2 (ja) | 医療用ガイドワイヤ | |
JP3774592B2 (ja) | 医療用ガイドワイヤ | |
JP2002095755A (ja) | 医療用ガイドワイヤ | |
JP2004024825A (ja) | 改良された医療用ガイドワイヤー | |
JP2001009041A (ja) | 医療用ガイドワイヤ | |
JP4685218B2 (ja) | 医療用ガイドワイヤ | |
JP2005224467A (ja) | 医療用ガイドワイヤ | |
JP2004249029A (ja) | 医療用ガイドワイヤー基線の製造方法 | |
JP2006115975A (ja) | 医療用ガイドワイヤの製造方法 | |
JPH03264073A (ja) | カテーテル用ガイドワイヤー芯材 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 20038A5092X Country of ref document: CN Ref document number: 1020057010147 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 1020057010147 Country of ref document: KR |
|
122 | Ep: pct application non-entry in european phase |