WO2006126311A1 - Ballon et cathéter à ballon - Google Patents

Ballon et cathéter à ballon Download PDF

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Publication number
WO2006126311A1
WO2006126311A1 PCT/JP2006/302385 JP2006302385W WO2006126311A1 WO 2006126311 A1 WO2006126311 A1 WO 2006126311A1 JP 2006302385 W JP2006302385 W JP 2006302385W WO 2006126311 A1 WO2006126311 A1 WO 2006126311A1
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WO
WIPO (PCT)
Prior art keywords
balloon
layer
elastomer
base material
polyamide elastomer
Prior art date
Application number
PCT/JP2006/302385
Other languages
English (en)
Japanese (ja)
Inventor
Mitsuharu Korogi
Original Assignee
Kaneka Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2005167638A external-priority patent/JP4967258B2/ja
Application filed by Kaneka Corporation filed Critical Kaneka Corporation
Publication of WO2006126311A1 publication Critical patent/WO2006126311A1/fr

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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
    • A61M25/10—Balloon catheters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • 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
    • A61M25/10—Balloon catheters
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1075—Balloon catheters with special features or adapted for special applications having a balloon composed of several layers, e.g. by coating or embedding

Definitions

  • the present invention relates to a medical balloon and a balloon catheter including the balloon.
  • angioplasty PTA is performed to improve the blood flow on the peripheral side of the blood vessel by expanding the stenosis or occlusion site of the blood vessel.
  • Percutaneous Transluminal Angioplasty ⁇ PTCA Percutaneous Transluminal Coronary Angioplasty, etc.
  • Balloon catheters are mainly used as a set of guide catheter and guide wire to dilate a stenotic site in a coronary artery.
  • the guide catheter is first inserted into the femoral artery, the tip is positioned at the entrance of the coronary artery via the aorta, and then the guide wire penetrating the balloon catheter is coronated.
  • Advance beyond the stenosis site of the artery then advance the balloon catheter along the guidewire, inflate with the balloon positioned at the stenosis site and dilate the stenosis site, and deflate the balloon It is removed outside the body.
  • the neuron catheter is not limited to treating arterial stenosis but is useful for many medical applications including insertion into blood vessels as well as insertion into various body cavities.
  • Norane provided at the distal portion of the catheter shaft is required to have various characteristics due to its role of expanding the stenosis in the blood vessel.
  • High pressure strength is required to expand the calcified hard stenosis.
  • a high degree of flexibility is required in order to be positioned at a bent stenosis site.
  • a sufficiently thin balloon is required in order to be located at a stenosis site having a very high stenosis degree of 99%. Taking these characteristics together, balloons are required to be thin and have high membrane strength and high flexibility. A number of methods have been disclosed so far regarding balloon thinning, high strength, and dimensional stabilization during expansion.
  • JP-A 63-183070 discloses a balloon made of polyethylene terephthalate (PET).
  • PET polyethylene terephthalate
  • This noren is thin, has high strength and has excellent dimensional stability.
  • the lack of flexibility and pinhole destruction occur as disadvantages.
  • pinhole destruction is not preferable because a high stress is locally applied to the blood vessel wall when the balloon breaks in the blood vessel, and the risk of causing damage to the blood vessel wall is extremely high.
  • JP-T-09-509860 discloses a balloon made of a block copolymer elastomer. This balloon has moderate elasticity and flexibility, but when trying to achieve sufficient dimensional stability, the balloon film thickness must be increased, and as a result, the passage through the constriction is impaired. .
  • Japanese Patent Application Laid-Open No. 09-164191 discloses a catheter nolon comprising a cylindrical portion and a catheter joint, wherein the balloon is made of a high-strength polymer, and the base layer A balloon having a coating layer which is close to the high-strength polymer formed on at least one surface of the material and has a flexible polymer force close to elongation at break and has a wall thickness of 25 m or less is disclosed. Yes. However, it is disclosed that the ratio of the Shore hardness of the polyamide elastomer forming the inner layer to the Shore hardness of the polyamide elastomer forming the base layer is 0.70 or more and 0.993 or less.
  • Patent Document 1 JP-A 63-183070
  • Patent Document 2 No. 09-509860
  • Patent Document 3 Japanese Patent Laid-Open No. 09-164191
  • an object of the present invention is to provide a medical balloon that has the same film thickness but has sufficient pressure resistance and dimensional stability when compared with balloons of other configurations.
  • the present invention solves the above-described problems and includes the following configuration. Snow The
  • a balloon for a medical catheter that has the strength of a polyamide elastomer.
  • the balloon has a base material layer made of a polyamide elastomer and has a lower bending elastic modulus than the base material layer inside the base material layer.
  • a balloon for a medical catheter that has the power of a polyamide elastomer, the balloon comprising a base material layer made of a polyamide elastomer, and a polyamide elastomer having a Shore hardness lower than that of the base material layer inside the base material layer.
  • the polyamide elastomer strength of the inner layer is selected from a polyetheramide elastomer and a polyetheresteramide elastomer
  • the polyamide elastomer of the outer layer is selected from a polyetheramide elastomer and a polyetheresteramide elastomer.
  • a balloon for a medical catheter comprising a polyether ester amide elastomer, wherein the balloon has a base layer also comprising a polyether ester amide elastomer, and has a Shore hardness inside the base layer than the base layer.
  • a balloon characterized in that the ratio of 62 X y + 14 to 62 ⁇ ⁇ + 14 is from 0.70 to 0.93, where y is the hard segment weight ratio of the amide elastomer.
  • a balloon catheter provided with a foldable balloon used for medical treatment for the purpose of expansion operation characterized in that it has a balloon described in (1) N A balloon catheter.
  • a medical balloon having sufficient pressure resistance and dimensional stability when compared to a balloon having the same film thickness but having another configuration.
  • FIG. 1 is a graph showing the relationship between balloon film thickness and breaking pressure.
  • FIG. 2 is a graph showing the relationship between the balloon film thickness and the diameter expansion rate.
  • FIG. 3 is a graph showing the relationship between balloon film thickness and breaking pressure.
  • FIG. 4 is a graph showing the relationship between balloon film thickness and diameter expansion rate.
  • a catheter for medical use having a polyamide elastomer force, the balloon comprising a base material layer made of a polyamide elastomer, and a base material layer on the inner side of the base material layer than the base material layer.
  • a balloon characterized by having an inner layer having a low bending elastic modulus and a polyamide elastomer having a large elongation at break and a great strength.
  • the balloon and the balloon catheter of the present invention are medical catheter balloons made of a polyamide elastomer, the balloon comprising a base material layer also made of a polyamide elastomer and the base.
  • the hardness of the polyamide elastomer is a force that can be used with any hardness depending on the flexibility required of the balloon. Preferably, it has a Shore D hardness of 25 to 72, and more preferably a Shore D hardness of 50 to 72. Is used.
  • the fracture pressure when compared at the same film thickness is the ratio of the Shore hardness of the polyamide elastomer that forms the inner layer of the norene of the present invention to the Shore hardness that forms the base material layer. If it is smaller than 0.70, the target cannot be achieved because the fracture pressure when compared at the same film thickness is small, and if it is larger than 0.93, all of them are formed only by the same base material layer. Compared to the lane, the improvement effect of high pressure strength and low expansion rate is insufficient.
  • the ratio of the Shore hardness of the polyamide elastomer forming the inner layer of the balloon of the present invention to the Shore hardness forming the base material layer is more preferably from 0.78 to 0.93.
  • the Shore hardness of the polyamide elastomer that forms the base layer of the balloon of the present invention is preferably 60D or more. From the viewpoint of flexibility and insertability into the lesion, the polyamide elastomer forming the base material layer preferably has a Shore hardness of 78D or less. In addition, the Shore hardness referred to in this specification means a value measured by IS0868.
  • the present invention provides a balloon for a medical catheter that is also a polyetheresteramide elastomer, the balloon comprising a base material layer that also has a polyetheresteramide elastomer force, Inside the base material layer is an inner layer which is also a polyether ester amide elastomer having a lower Shore hardness than the base material layer.
  • the hard segment weight ratio of the polyether ester amide elastomer forming the base material layer is set to X
  • the hard segment weight ratio of the polyether ester amide elastomer forming the inner layer is y, it is a force of 62 Xy + 14 to 62 X X + 14 ⁇ ). 70 or more and 0.9 or less Provide a balloon to do.
  • the weight ratio of the hard segment is determined by measuring the weight of the polyamide part and the weight of the polyether part by P ⁇ -NMR and calculating the weight ratio of the polyamide part.
  • the method for producing the balloon of the present invention is not particularly limited, but a tube having an inner layer having a Shore hardness lower than that of the base material layer on the inner side of the base material layer that also has a polyamide elastomer having a high elastic modulus (Parison) ) By extrusion molding, and the parison is biaxially stretch blow molded.
  • examples of the polyamide elastomer include polyether ester amide elastomers and polyamide ether elastomers.
  • Polyether ester amide elastomers are preferred from the viewpoint of better dimensional stability of balloons with higher yield strength.
  • the polyamide elastomer of the inner layer is preferably a polyether ester amide elastomer from the viewpoint of better dimensional stability of the balloon.
  • the polyamide elastomer of the outer layer is preferably a polyether ester amide elastomer from the viewpoint of better dimensional stability of the balloon.
  • polyetheresteramide elastomer a block copolymer comprising a hard segment and a soft segment is used.
  • a block copolymer using a hard segment made of polyamide and a soft segment also having a polyether strength is used.
  • polyamide constituting this hard segment polyamide 6, 6-6, 6-10, 6-12, 11, 12 and the like can be used.
  • polyamide 12 is preferable.
  • polyether constituting the soft segment polyethylene glycol, polypropylene glycol, polytetramethylene glycol and the like can be used. Particularly, polytetramethylene glycol is preferable.
  • the ratio of the overall cross-sectional area of the cross-sectional area of the inner layer of the balloon of the present invention is preferably 0.01 to 0.25.
  • the cross-sectional area means the cross-sectional area when the balloon is cut into a ring perpendicular to the longitudinal direction of the balloon.
  • the inner layer and the outer layer may be measured in the same manner as the method of measuring the cross section of the parison by observing the balloon by cutting it into a ring perpendicular to the longitudinal axis direction and magnifying with a microscope. There is a method of calculating the ratio by calculating the cross-sectional area.
  • the cross-sectional area ratio of the inner layer is smaller than 0.01, the effect of reducing the film thickness while maintaining high fracture pressure and high dimensional stability is poor. Point force that reduces dimensional stability is not preferable.
  • the cross-sectional area ratio of the inner layer is more preferably 0.02 force to 0.20, and still more preferably 0.03 force to 0.15.
  • an outer layer that is one of the most powerful polyamide elastomers on the outside of the base material layer has low elastic modulus and high elongation at break. It exists, but ...
  • a polyamide elastomer having a bending elastic modulus lower than 300 MPa and a breaking elongation larger than 380% is provided outside the base material layer.
  • an inner layer that is a polyamide elastomer marker having a Shore hardness lower than that of the base material layer is provided inside the base material layer, and the base material layer of the polyamide elastomer that forms the inner layer has a Shore hardness.
  • the ratio of the polyamide elastomer that forms the Shore hardness is 0.70 or more and 0.93 or less.
  • the polyamide elastomer having a low flexural modulus and a large breaking elongation include polyether ester amide elastomer and polyether amide elastomer. From the viewpoint of better dimensional stability of the balloon, a polyester ester amide elastomer is preferred as the polyamide elastomer having a low elastic modulus and a large elongation at break.
  • An outer layer that has the strength of a polyamide elastomer that has a low elastic modulus and a large breaking elongation exists outside the base material layer, and a balloon that does not have an inner layer inside the base material layer has the same film thickness when compared. Because the pressure resistance is inferior!
  • the flexural modulus referred to in this specification is a value measured by IS0178.
  • the elongation at break referred to in this specification is a value measured by ASTM D638.
  • PEBAX7233 A parison with a base layer strength of PEBAX7233 (manufactured by Elfachem) and an inner layer of PEBAX6333 with a ratio of 0.09 to the total cross-sectional area of the inner layer was formed by extrusion.
  • PEBAX7233 has a flexural modulus of 730 MPa and an elongation at break of 360%.
  • PEBAX6333 has a flexural modulus of 290 MPa and an elongation at break of 440%.
  • a biaxial stretch blow molding was performed under various molding conditions to obtain a balloon having a thickness of 20 m to 23 m.
  • the film thickness of the balloon was measured with a micrometer, and the average of the thicknesses at the center, right side, and left side of the straight tube portion of the balloon was taken as the film thickness.
  • These balloons were placed in a water bath filled with 37 ° C physiological saline, and the pressure was increased by 0.2 atm using physiological saline.
  • the outer diameter was measured by holding for 1 second at each pressure. The pressure was continuously increased until the balloon was broken, and the breaking pressure of the balloon was measured.
  • the diameter expansion rate was calculated when the pressure was increased from 12 atm to 22 atm. Table 1 shows the measured values.
  • Figure 1 shows the relationship between film thickness and burst pressure
  • Figure 2 shows the relationship between film thickness and diameter expansion rate. The diameter expansion rate was calculated using the following formula.
  • Base layer layer SPEBAX7233, outer layer force PEBAX6333, inner layer PEBAX6333 has a three-layer structure, the ratio of the inner layer cross-sectional area to the total cross-sectional area is 0.06, and the ratio of the outer layer cross-sectional area to the total cross-sectional area is 0.03.
  • the parison was molded by extrusion. A biaxial stretch blow molding was performed under various molding conditions to obtain a balloon having a diameter of 3. Omm and a film thickness of 20 ⁇ m to 24 ⁇ m. The breaking pressure and the diameter expansion rate of the balloon were measured in the same manner as in Example 1. Table 1 shows the measured values. Fig. 1 shows the relationship between film thickness and burst pressure, and Fig. 2 shows the relationship between film thickness and diameter expansion rate.
  • a double layer structure with PEBAX7233 as the base material layer and PEBAX6333 as the inner layer, and a ratio of the inner layer cross-sectional area to the total cross-sectional area of 0.05 was formed by extrusion molding.
  • Biaxial stretch blow molding was performed under various conditions to obtain balloons having a diameter of 3. Omm and a thickness of 19 ⁇ m to 23 ⁇ m.
  • the breaking pressure and the diameter expansion rate of the balloon were measured in the same manner as in Example 1.
  • Table 1 shows the measured values.
  • Figure 1 shows the relationship between film thickness and burst pressure
  • Figure 2 shows the relationship between film thickness and diameter expansion rate.
  • a parison having a two-layer structure with a base material layer of PEBAX7233 and an inner layer of PEBAX6333 and a ratio of the inner layer cross-sectional area to the total cross-sectional area of 0.20 was formed by extrusion molding. Balloon with diameter of 3. Omm and thickness of 21 ⁇ m to 24 ⁇ m by biaxial stretch blow molding under various conditions Got. The breaking pressure and expansion rate of the balloon were measured in the same manner as in Example 1. Table 1 shows the measured values. Figure 1 shows the relationship between film thickness and burst pressure, and Figure 2 shows the relationship between film thickness and expansion rate.
  • a single layer structure of PEBAX7233 was formed by extrusion. Biaxial stretch blow molding was performed under various molding conditions to obtain balloons with a diameter of 3. Omm and a film thickness of 21 ⁇ m to 25 ⁇ m. The breaking pressure and the diameter expansion rate of the balloon were measured in the same manner as in Example 1. Table 2 shows the measured values. Fig. 1 shows the relationship between film thickness and burst pressure, and Fig. 2 shows the relationship between film thickness and diameter expansion rate.
  • a parison having a two-layer structure consisting of a base material layer SPEBAX7233 and an outer layer force SPEBAX6333 and having an outer layer cross-sectional area ratio of 0.09 was formed by extrusion molding.
  • Biaxial stretch blow molding was performed under various molding conditions to obtain balloons with a diameter of 3. Omm and a film thickness of 22 ⁇ m to 25 ⁇ m.
  • the breaking pressure and diameter expansion rate of the balloon were measured in the same manner as in Example 1.
  • Table 2 shows the measured values.
  • Figure 1 shows the relationship between film thickness and burst pressure
  • Figure 2 shows the relationship between film thickness and expansion rate.
  • a parison having a two-layer structure with a base material layer of PEBAX7233 and an inner layer of PEBAX6333 and a sectional area ratio of the inner layer of 0.40 was formed by extrusion molding.
  • Balloons having a diameter of 3. Omm and a thickness of 19 ⁇ m to 23 ⁇ m were formed by biaxial stretch blow molding under various molding conditions. Balloon breaking pressure and expansion rate were measured in the same manner as in Example 1.
  • Table 2 shows the measured values.
  • Figure 1 shows the relationship between film thickness and burst pressure
  • Figure 2 shows the relationship between film thickness and expansion rate.
  • PEBAX7233 has a Shore hardness of 72D and PEBAX6333 has a Shore hardness of 63D.
  • the ratio of the inner layer Shore hardness to the substrate layer Shore hardness is 0.88.
  • the temperature is in the range of 60 ° C and 110 ° C
  • the pressure is in the range of 3MPa, 5.5MPa
  • the inner diameter of the nozzle is 0.6mm
  • the outer diameter of the nozzle is 1.5mm.
  • a balloon having a diameter of 6 mm and a thickness of 28 ⁇ m and 36 ⁇ m was obtained by biaxial stretch blow molding.
  • the film thickness of the balloon was measured with a micrometer, and the average thickness of the three points of the center, right side and left side of the straight tube portion of the balloon was taken as the film thickness.
  • Fig. 3 shows the relationship between the film thickness and the burst pressure
  • Fig. 4 shows the relationship between the film thickness and the diameter expansion rate.
  • the diameter expansion rate was calculated using the following formula.
  • a parison having a base layer of PEBAX7233 and an inner layer of PEBAX5533 and a ratio of the inner layer cross-sectional area to the total cross-sectional area of 0.06 was formed by extrusion molding.
  • PEBAX5 533 has a Shore hardness of 55D.
  • the ratio of the Shore hardness of the inner layer to the Shore hardness of the base material layer is 0.76.
  • a biaxial stretch blow molding was performed under various molding conditions to obtain a balloon having a diameter of 6 mm and a film thickness of 32 to 36 m.
  • the breaking pressure and diameter expansion rate of the balloon were measured in the same manner as in Example 5. The measured values are shown in Table 3 above, the relationship between film thickness and breaking pressure is shown in Fig. 3, and the relationship between film thickness and diameter expansion rate is shown. This is shown in Fig. 4.
  • a single layer structure of PEBAX7233 was formed by extrusion.
  • a balun having a diameter of 6 mm and a film thickness of 44 ⁇ m to 48 ⁇ m was obtained by biaxial stretching blow molding under various molding conditions.
  • the breaking pressure and diameter expansion rate of the balloon were measured in the same manner as in Example 5. The measured values are shown in Table 24, the relationship between film thickness and breaking pressure is shown in Fig. 3, and the relationship between film thickness and diameter expansion rate is shown. Shown in 4.
  • a parison having a two-layer structure consisting of a base material layer SPEBAX7233 and an outer layer force SPEBAX4033 and having an outer layer cross-sectional area ratio of 0.09 was formed by extrusion molding.
  • PEBAX2533 has a Shore hardness of 25D.
  • the ratio of the Shore hardness of the inner layer to the Shore hardness of the base layer is 0.58.
  • Biaxial stretch blow molding was performed under various molding conditions to obtain a balloon having a diameter of 6 mm and a film thickness of 35 ⁇ m to 43 ⁇ m.
  • the fracture pressure and diameter expansion rate of the balloon were measured in the same manner as in Example 5 (results are shown in Table 4 above), and the relationship between film thickness and fracture pressure is shown in Fig. 3, and the relationship between film thickness and expansion rate. This is shown in Fig. 4.
  • a parison having a two-layer structure consisting of a base material layer SPEBAX7233 and an outer layer force SPEBAX2533 and having an outer layer cross-sectional area ratio of 0.09 was formed by extrusion molding.
  • the ratio of the Shore hardness of the inner layer to the Shore hardness of the base layer is 0.35.
  • Biaxial stretch blow molding was performed under various molding conditions to obtain balloons having a diameter of 6 mm and a film thickness of 29 ⁇ m to 39 ⁇ m.
  • the fracture pressure and diameter expansion rate of the balloon were measured in the same manner as in Example 5 (results are shown in Table 4 above), and the relationship between film thickness and fracture pressure is shown in Fig. 3, and the relationship between film thickness and expansion rate. This is shown in Fig. 4.
  • a parison having a two-layer structure consisting of a base material layer SPEBAX7233 and an outer layer force SPEBAX7033 and having an outer layer cross-sectional area ratio of 0.08 was formed by extrusion molding.
  • PEBAX7033 has a Shore hardness of 70D.
  • the ratio of the Shore hardness of the inner layer to the Shore hardness of the base layer is 0.96.
  • Biaxial stretch blow molding was performed under various molding conditions to obtain balloons having a diameter of 6 mm and a film thickness of 42 ⁇ m to 45 ⁇ m.
  • the fracture pressure and diameter expansion rate of the balloon were measured in the same manner as in Example 5 (results are shown in Table 4 above), and the relationship between film thickness and fracture pressure is shown in Fig. 3, and the relationship between film thickness and expansion rate. This is shown in Fig. 4.

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
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  • Pulmonology (AREA)
  • Child & Adolescent Psychology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Materials For Medical Uses (AREA)

Abstract

L’invention concerne un ballon en élastomère de polyamide pour cathéters pour utilisation médicale. Ce ballon comprend une couche de base en élastomère de polyamide et une couche interne qui est comprise dans la couche de base et faite d'un autre élastomère de polyamide ayant un modulus élastique moindre et un plus grand allongement à la rupture ou une dureté Shore moindre par rapport à la couche de base. Il est donc possible d’obtenir un ballon pour cathéters qui peut être aminci tout en conservant une force de compression et une stabilité dimensionnelle suffisantes, et ayant une flexibilité telle qu’elle facilite l'insertion dans une partie recourbée et étroite.
PCT/JP2006/302385 2005-05-27 2006-02-10 Ballon et cathéter à ballon WO2006126311A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2005-155650 2005-05-27
JP2005155650 2005-05-27
JP2005167638A JP4967258B2 (ja) 2004-06-10 2005-06-08 バルーンおよびバルーンカテーテル
JP2005-167638 2005-06-08

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WO2006126311A1 true WO2006126311A1 (fr) 2006-11-30

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Cited By (13)

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WO2007075256A1 (fr) * 2005-12-20 2007-07-05 Advanced Cardiovascular Systems, Inc. Ballonnet multicouches non compliant pour sonde
US8052638B2 (en) 2008-11-26 2011-11-08 Abbott Cardiovascular Systems, Inc. Robust multi-layer balloon
US8070719B2 (en) 2008-11-26 2011-12-06 Abbott Cardiovascular Systems, Inc. Low compliant catheter tubing
US8444608B2 (en) 2008-11-26 2013-05-21 Abbott Cardivascular Systems, Inc. Robust catheter tubing
JPWO2013094541A1 (ja) * 2011-12-20 2015-04-27 株式会社カネカ 拡張用バルーンの製造方法
US9056190B2 (en) 2006-06-30 2015-06-16 Abbott Cardiovascular Systems Inc. Balloon catheter tapered shaft having high strength and flexibility and method of making same
US9132259B2 (en) 2012-11-19 2015-09-15 Abbott Cardiovascular Systems Inc. Multilayer balloon for a catheter
US9216274B2 (en) 2007-12-17 2015-12-22 Abbott Cardiovascular Systems Inc. Catheter having transitioning shaft segments
US9265918B2 (en) 2008-09-03 2016-02-23 Boston Scientific Scimed, Inc. Multilayer medical balloon
US9352135B2 (en) 2010-09-14 2016-05-31 Abbott Cardiovascular Systems Inc. Method for forming catheter balloon
US9707380B2 (en) 2012-07-05 2017-07-18 Abbott Cardiovascular Systems Inc. Catheter with a dual lumen monolithic shaft
US9855400B2 (en) 2001-09-19 2018-01-02 Abbott Cardiovascular Systems, Inc. Catheter with a multilayered shaft section having a polyimide layer
US10406329B2 (en) 2011-05-26 2019-09-10 Abbott Cardiovascular Systems, Inc. Through tip for catheter

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JP2004298363A (ja) * 2003-03-31 2004-10-28 Nippon Zeon Co Ltd バルーンカテーテル用バルーン及びその製造方法

Patent Citations (4)

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JPH09164191A (ja) * 1995-10-11 1997-06-24 Terumo Corp カテーテル用バルーンおよびバルーンカテーテルならびに血管拡張用カテーテル
JP2000515036A (ja) * 1996-07-23 2000-11-14 シメッド ライフ システムズ インコーポレイテッド 胃腸病巣処置に好適なカテーテル用高コンプライアンス高強度バルーン
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Cited By (34)

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Publication number Priority date Publication date Assignee Title
US9855400B2 (en) 2001-09-19 2018-01-02 Abbott Cardiovascular Systems, Inc. Catheter with a multilayered shaft section having a polyimide layer
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