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US20080234605A1 - Catheter Guide Wire - Google Patents

Catheter Guide Wire Download PDF

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Publication number
US20080234605A1
US20080234605A1 US10/597,893 US59789305A US2008234605A1 US 20080234605 A1 US20080234605 A1 US 20080234605A1 US 59789305 A US59789305 A US 59789305A US 2008234605 A1 US2008234605 A1 US 2008234605A1
Authority
US
United States
Prior art keywords
guidewire
distal end
stiffness
length
diameter
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US10/597,893
Other languages
English (en)
Inventor
Robert Graham Urie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mediplus Ltd
Original Assignee
Mediplus Ltd
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
Application filed by Mediplus Ltd filed Critical Mediplus Ltd
Assigned to MEDIPLUS LIMITED reassignment MEDIPLUS LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: URIE, ROBERT GRAHAM
Publication of US20080234605A1 publication Critical patent/US20080234605A1/en
Priority to US14/287,336 priority Critical patent/US9352132B2/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • 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
    • A61M25/09041—Mechanisms for insertion of 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
    • A61M25/0017—Catheters; Hollow probes specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections
    • 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
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0606—"Over-the-needle" catheter assemblies, e.g. I.V. 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
    • 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
    • A61M2025/0188—Introducing, guiding, advancing, emplacing or holding catheters having slitted or breakaway lumens
    • 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
    • A61M2025/09083—Basic structures of guide wires having a coil around a core
    • 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
    • A61M2025/0915—Guide wires having features for changing the stiffness

Definitions

  • the present invention relates to guide wires for the insertion of catheters into the human or animal body and in particular, though not exclusively, to guide wires suitable for the insertion of the catheter into the bladder.
  • a trocar having a stiff penetrative tip (e.g. of medical grade stainless steel) and a stiff outer plastic sheath is inserted into the bladder through the supra-pubic region.
  • the trocar is then withdrawn through the sheath, leaving the sheath in situ, penetrating the bladder through the supra-pubic region.
  • a flexible catheter is then introduced into the bladder through the sheath.
  • the plastic sheath is of the peelable variety, so that once the flexible catheter is introduced into the bladder, the sheath can be split along its entire length, stripped away from the flexible catheter and removed from the body. This leaves the flexible catheter in situ.
  • a potential drawback with this technique is that the initial penetration of the supra-pubic region is, like the previously described technique, performed with a penetrative instrument having an outside diameter of similar dimensions to the flexible catheter that is eventually introduced (e.g. of the order of 5 mm or so). Therefore, again, the clinician must exercise great care to avoid over-penetration of the bladder and potential damage to the opposite bladder wall.
  • the present invention seeks to provide an improved method and apparatus for insertion of a flexible catheter into a human or animal body.
  • the invention seeks to provide a guidewire technique to overcome some or all of the disadvantages associated with the prior art.
  • the present invention provides a guidewire for introduction into a body via a hollow needle, comprising:
  • the present invention provides a bladder drainage kit comprising:
  • FIG. 1 shows an axial cross-section of a guidewire according to a preferred embodiment of the present invention
  • FIG. 2 shows an axial cross-section of a centre wire of the guidewire of FIG. 1 ;
  • FIG. 3 shows a side view of the complete guidewire of FIG. 1 ;
  • FIG. 4 shows a schematic diagram illustrating a needle, a plastic catheter sheath with peelable outer skin and catheter, useful in explaining a method of use of the guidewire of the present invention.
  • a feature of the method of the present invention is that a guide wire can be used to significantly reduce the diameter of needle or trocar required to penetrate the bladder. This is particularly significant in the supra-pubic region where the tissue is particularly tough.
  • a small diameter needle e.g. of the order of 1 mm outside diameter
  • the relatively small diameter needle is much easier to control during penetration of the tissue.
  • a thin guidewire is then introduced into the bladder via tie needle, such that it extends into the bladder.
  • the needle is then withdrawn over the guidewire, leaving the guidewire in place.
  • a stiff plastic sheath having a distal end which tapers down to a diameter similar to that of the guidewire is introduced into the bladder through the skin and tissue using the guidewire as a guide. This expands the existing hole in the tissue.
  • a flexible catheter is then introduced into the plastic sheath and thereby into the bladder.
  • the plastic sheath is of the peelable variety, so that once the flexible catheter is introduced into the bladder, the sheath can be split along its entire length, stripped away from the flexible catheter and removed from the body. This leaves the flexible catheter in situ.
  • the guidewire In order to successfully perform this procedure, the guidewire must have a high degree of stiffness in order to facilitate and guide the penetration, into the body, of the relatively larger plastic sheath. Otherwise the pressure being applied on the plastic sheath to displace tough tissue will distort the guidewire. This high stiffness in turn again increases the likelihood of internal damage to the bladder caused by over-insertion of the guidewire, such that the distal end thereof collides with an opposite internal wall of the bladder. Therefore, the clinician must exercise great care not to over-insert the guidewire, despite significant variations in physique of different patients (e.g. the depth and stiffness or muscle tone of tissue to be penetrated).
  • the guidewire comprises outer tubing 2 , preferably formed from stainless steel, which is filled with a solid core 3 , also preferably formed from stainless steel.
  • the outer tubing 2 extends from a proximal end 5 of the guidewire 1 to a first intermediate position 6 where it is welded, brazed or otherwise fixed or bonded to a tightly would coil 4 of substantially the same outside diameter as the outer tubing 2 .
  • the coil 4 extends from the first intermediate position 6 to a distal end 9 of the guidewire 1 .
  • the solid core 3 extends throughout the outer tubing 2 and extends beyond the first intermediate position to the distal end 9 of the guidewire. At the first intermediate position 6 , or slightly beyond it at a second intermediate position 7 towards the distal end 9 , the solid core 3 commences a taper. The taper ends at a third intermediate position 8 . The solid core 8 terminates at the distal end in a ‘mushroom’ configuration where it is welded, brazed or otherwise fixed or bonded to the tightly wound coil 4 .
  • the guidewire 1 therefore provides three distinct portions. These are: a first (‘proximal’) portion 11 extending from the proximal end 5 to the first intermediate position 6 ; a second (‘intermediate’) portion 12 extending from the first intermediate position 6 to the third intermediate position 8 ; and a third (‘distal’) portion 13 extending from the third intermediate position 8 to the distal end 9 .
  • the combination of the outer tubing 2 , the coil 4 and the solid core 3 effectively provides a guidewire 1 having a first stiffness at the proximal end (and generally extending throughout the proximal portion 11 to the first intermediate position 6 ), a second stiffness at the distal end 9 (and generally extending throughout the distal portion 13 to the third intermediate position 8 ) in which the second stiffness value is significantly less than the first stiffness value.
  • the stiffness value lies between that of the first and second stiffness values and may generally vary over the length thereof.
  • the stiffness is defined as the force required to produce an angular lateral displacement of 30 degrees when applied at a distance of 10 mm along the respective length of guidewire.
  • the stiffness of the proximal portion 11 is in excess of 10 N, and more preferably lies within the range 15 to 20 N.
  • the stiffness of the distal portion 13 is less than 3 N, and more preferably lies within the range 0.2 to 1 N.
  • the stiffness of the intermediate portion 12 lies in the range between that of the adjacent proximal and distal portions, and preferably it has a gradual or stepped reduction in stiffness over the length of the intermediate portion 12 . In preferred embodiments, the stiffness of the intermediate portion lies in the range 5 N to 8 N.
  • the outer tubing has an outside diameter approximately 0.0355 inch or 0.0360 inch (900 or 915 microns).
  • the outer tubing has a length of 30 cm.
  • the coil has an outside diameter of approximately 0.0370 inch (940 microns) and a coiled length of approximately 12.5 cm.
  • the solid core 3 has a maximum outside diameter (in the proximal portion) of approximately 0.020 inch (500 microns) and an overall length of approximately 42 cm.
  • the solid core 3 has a diameter tapering to approximately 0.006 inch (150 microns) at the third intermediate position 8 and a length of distal portion of approximately 21 mm.
  • the solid core 3 may taper in the distal portion 13 down to a diameter of between approximately 0.0023 inch and 0.0033 inch (58 to 84 microns).
  • the outer tubing and coil have an outside diameter of approximately 750 microns.
  • the guidewire has an outside diameter of less than 2 mm and preferably less than or equal to 1 mm, e.g. in the range 750 to 1000 microns.
  • the guidewire 1 preferably has a distal end which extends over a length of between 10 and 15 cm, and more preferably over a length of 12.5 cm ⁇ 1 cm.
  • the distal end comprises the distal portion 13 and the intermediate portion 12 .
  • the guidewire 1 has a distal portion that extends over a length of between 2 and 8 cm and an intermediate portion that extends over a length of between 2 and 8 cm. More preferably, the distal end extends over a length of at least 2 cm and the intermediate portion extends over a length of 4 cm ⁇ 1 cm.
  • the materials used are preferably 304 stainless steel throughout although other clinical grade materials may be considered.
  • the guidewire is provided with reference markings at predetermined positions along its length.
  • the guidewire 1 preferably includes a first reference mark 30 at a distance of 340 mm from the distal end 5 and a second reference mark 31 at a distance of 215 mm from the distal end. The function of the reference marks will become apparent from the description hereinafter.
  • tie guidewire is deployed in the following manner.
  • a needle 40 of gauge 1 mm and length 7 mm is introduced into the bladder 41 through the supra-pubic tissue 42 .
  • the guidewire 1 is introduced into the bladder 41 through the needle.
  • An important feature of the guidewire is that the distal portion 13 is relatively flexible with minimal stiffness (sufficient to allow convenient introduction into and through the needle) and is unable to cause damage to the internal walls of the bladder 41 , especially at a location 43 opposite to the point of entry of the needle 40 .
  • the intermediate portion 12 has a sufficient increase in stiffness over the distal portion 13 to provide tactile feedback to the clinician. In other words, when the guidewire has been passed into the bladder to an extent that the intermediate portion 12 reaches the opposite bladder wall 43 , its collision with the wall will be evident to the clinician by simple change in resistance to further motion.
  • a stiff plastic sheath or preferably a pair of coaxial sheaths 44 , 45 , are slid over the guidewire 1 from its proximal end, preferably up to the point where the first or second reference mark appears (depending upon the type of sheath being used).
  • the stiff plastic sheaths 44 and 45 have a tapered end 46 adapted to form a snug sliding fit over the guidewire 1 , ie. having an inside diameter slightly larger than that of the outer tube 2 and coil 4 .
  • the stiff plastic sheath provides a gradual increase in diameter increasing from approximately 1.2 mm outside diameter at its distal end 46 to 6 mm outside diameter for the main body portion 47 .
  • the outer sheath 44 of the coaxial pair of sheaths is formed from a relative thin and frangible plastics material and includes two lugs 48 at the proximal end.
  • the inner sheath 45 is rather more robust and provides the mechanical strength required.
  • the plastic sheaths are adapted to be guided by the guidewire into the tissue to expand the hole already formed by the needle. Particularly in the supra-pubic region, entry of the plastic sheath encounters significant resistance, increasing the dimension of hole in the tissue from the needle diameter (e.g. 1 mm to 6 mm).
  • An important feature of the guidewire described herein is to provide a stiff proximal portion of the guidewire that is adequate to provide the guiding function, while providing a sufficiently flexible distal portion to avoid damage to internal walls of the bladder. It has been found that guidewires that are sufficiently flexible to avoid risk of damage to internal walls of the bladder are generally insufficiently stiff to provide adequate guidance to the plastic sheath insertion through certain tissue types in specific regions of the body, e.g. the supra-pubic region.
  • the guidewire 1 can be withdrawn.
  • the inner sheath 45 can also be withdrawn.
  • the desired bladder drainage catheter 50 formed from soft, flexible plastic tubing (e.g. of approximately 4 mm outside diameter) can be introduced into the bladder via the outer stiff plastic sheath 44 .
  • the stiff plastic sheath 44 can be removed by tearing along its length. In other words, the clinician may grasp the lugs 48 and strip or peel the plastic sheath 44 away; withdrawing the distal portion contained within the body while doing so.
  • the plastic sheath 44 has a distal end of inside diameter approximately equal to the outside diameter of the guidewire, and a proximal end of inside diameter sufficient to receive the flexible catheter, e.g. at least 4 mm.
  • a guidewire having at least two grades of stiffness, and preferably at least three, along its length, facilitates the provision of several important features.
  • the guidewire can be sufficiently stiff or rigid in the proximal portion to ensure adequate guidance of the sheath which expands the needle hole.
  • the flexible distal end protects the bladder internal walls from damage.
  • the graduated stiffness in the intermediate portion provides the clinician with tactile feedback of the positioning of the guidewire within the bladder.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Biophysics (AREA)
  • Epidemiology (AREA)
  • Urology & Nephrology (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Vascular Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
US10/597,893 2004-02-11 2005-02-11 Catheter Guide Wire Abandoned US20080234605A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/287,336 US9352132B2 (en) 2004-02-11 2014-05-27 Catheter guide wire

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0402930.2 2004-02-11
GB0402930A GB2410901B (en) 2004-02-11 2004-02-11 Catheter guide wire
PCT/GB2005/000494 WO2005077434A2 (fr) 2004-02-11 2005-02-11 Fil-guide de catheter

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/000494 A-371-Of-International WO2005077434A2 (fr) 2004-02-11 2005-02-11 Fil-guide de catheter

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/287,336 Continuation US9352132B2 (en) 2004-02-11 2014-05-27 Catheter guide wire

Publications (1)

Publication Number Publication Date
US20080234605A1 true US20080234605A1 (en) 2008-09-25

Family

ID=32011657

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/597,893 Abandoned US20080234605A1 (en) 2004-02-11 2005-02-11 Catheter Guide Wire
US14/287,336 Expired - Lifetime US9352132B2 (en) 2004-02-11 2014-05-27 Catheter guide wire

Family Applications After (1)

Application Number Title Priority Date Filing Date
US14/287,336 Expired - Lifetime US9352132B2 (en) 2004-02-11 2014-05-27 Catheter guide wire

Country Status (6)

Country Link
US (2) US20080234605A1 (fr)
EP (1) EP1713536B1 (fr)
ES (1) ES2443997T3 (fr)
GB (2) GB2410901B (fr)
PL (1) PL1713536T3 (fr)
WO (1) WO2005077434A2 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100174246A1 (en) * 2009-01-05 2010-07-08 Vance Products Inc. D/B/A Cook Urological Incorporated Medical Guide Wire and Method of Forming Thereof
US20120197159A1 (en) * 2011-01-28 2012-08-02 Asahi Intecc Co., Ltd. Guidewire
US20130006149A1 (en) * 2011-06-29 2013-01-03 Abbott Cardiovascular Systems Guide Wire Device Including a Solderable Linear Elastic Nickel-Titanium Distal End Section and Methods Of Preparation Therefor
CN110681031A (zh) * 2019-11-11 2020-01-14 湖南埃普特医疗器械有限公司 一种造影导丝及其制备方法
US11779477B2 (en) 2010-11-17 2023-10-10 Abbott Cardiovascular Systems, Inc. Radiopaque intraluminal stents
US12151049B2 (en) 2019-10-14 2024-11-26 Abbott Cardiovascular Systems, Inc. Methods for manufacturing radiopaque intraluminal stents comprising cobalt-based alloys with supersaturated tungsten content
US12343479B2 (en) 2016-02-24 2025-07-01 Incept, Llc Neurovascular catheter
US12453564B2 (en) 2019-12-18 2025-10-28 Imperative Care, Inc. Hemostasis valve

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019073569A1 (fr) 2017-10-12 2019-04-18 朝日インテック株式会社 Fil-guide
WO2019073570A1 (fr) 2017-10-12 2019-04-18 朝日インテック株式会社 Fil-guide
CN111225708B (zh) 2017-10-12 2022-04-12 朝日英达科株式会社 导丝
CN211856471U (zh) 2019-08-22 2020-11-03 贝克顿·迪金森公司 回声医疗器械回声反射性量化测试系统
CN211884905U (zh) 2019-08-22 2020-11-10 贝克顿·迪金森公司 球囊扩张导管及其球囊
CN112401971B (zh) 2019-08-23 2025-09-09 贝克顿·迪金森公司 为经皮肾镜取石术外科手术设计的套件

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020077686A1 (en) * 1998-06-12 2002-06-20 Cardiac Pacemakers, Inc. Modified guidewire for left ventricular access lead
US20020156397A1 (en) * 1997-06-04 2002-10-24 Advanced Cardiovascular Systems, Inc. Guidewire having linear change in stiffness
US6685671B1 (en) * 1998-01-14 2004-02-03 Sumitomo Bakeleite Co., Ltd. Balloon catheter for puncturing, medical tube introduction device using the catheter and method for use thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4619644A (en) * 1984-09-06 1986-10-28 Scott Van E Clinical catheterization technique and apparatus for performing same
US6936065B2 (en) * 1999-11-22 2005-08-30 Cordis Corporation Stent delivery system having a fixed guidewire

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020156397A1 (en) * 1997-06-04 2002-10-24 Advanced Cardiovascular Systems, Inc. Guidewire having linear change in stiffness
US6685671B1 (en) * 1998-01-14 2004-02-03 Sumitomo Bakeleite Co., Ltd. Balloon catheter for puncturing, medical tube introduction device using the catheter and method for use thereof
US20020077686A1 (en) * 1998-06-12 2002-06-20 Cardiac Pacemakers, Inc. Modified guidewire for left ventricular access lead

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8444577B2 (en) * 2009-01-05 2013-05-21 Cook Medical Technologies Llc Medical guide wire
US20100174246A1 (en) * 2009-01-05 2010-07-08 Vance Products Inc. D/B/A Cook Urological Incorporated Medical Guide Wire and Method of Forming Thereof
US12150872B2 (en) 2010-11-17 2024-11-26 Abbott Cardiovascular Systems, Inc. Radiopaque intraluminal stents
US11779477B2 (en) 2010-11-17 2023-10-10 Abbott Cardiovascular Systems, Inc. Radiopaque intraluminal stents
US20120197159A1 (en) * 2011-01-28 2012-08-02 Asahi Intecc Co., Ltd. Guidewire
US8758269B2 (en) * 2011-01-28 2014-06-24 Asahi Intecc Co., Ltd. Guidewire
US20130006149A1 (en) * 2011-06-29 2013-01-03 Abbott Cardiovascular Systems Guide Wire Device Including a Solderable Linear Elastic Nickel-Titanium Distal End Section and Methods Of Preparation Therefor
US9724494B2 (en) * 2011-06-29 2017-08-08 Abbott Cardiovascular Systems, Inc. Guide wire device including a solderable linear elastic nickel-titanium distal end section and methods of preparation therefor
US11806488B2 (en) 2011-06-29 2023-11-07 Abbott Cardiovascular Systems, Inc. Medical device including a solderable linear elastic nickel-titanium distal end section and methods of preparation therefor
US12343479B2 (en) 2016-02-24 2025-07-01 Incept, Llc Neurovascular catheter
US12151049B2 (en) 2019-10-14 2024-11-26 Abbott Cardiovascular Systems, Inc. Methods for manufacturing radiopaque intraluminal stents comprising cobalt-based alloys with supersaturated tungsten content
CN110681031A (zh) * 2019-11-11 2020-01-14 湖南埃普特医疗器械有限公司 一种造影导丝及其制备方法
US12453564B2 (en) 2019-12-18 2025-10-28 Imperative Care, Inc. Hemostasis valve

Also Published As

Publication number Publication date
EP1713536A2 (fr) 2006-10-25
WO2005077434A2 (fr) 2005-08-25
GB2410901B (en) 2008-09-24
PL1713536T3 (pl) 2014-04-30
GB2410901A (en) 2005-08-17
US9352132B2 (en) 2016-05-31
GB2447163B (en) 2008-10-22
WO2005077434A3 (fr) 2005-12-22
EP1713536B1 (fr) 2013-11-13
ES2443997T3 (es) 2014-02-21
GB0402930D0 (en) 2004-03-17
GB2447163A (en) 2008-09-03
US20140350519A1 (en) 2014-11-27
GB0809482D0 (en) 2008-07-02

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