WO2005082445A1 - Steerable catheter for right coronary artery - Google Patents

Steerable catheter for right coronary artery Download PDF

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Publication number
WO2005082445A1
WO2005082445A1 PCT/US2005/005776 US2005005776W WO2005082445A1 WO 2005082445 A1 WO2005082445 A1 WO 2005082445A1 US 2005005776 W US2005005776 W US 2005005776W WO 2005082445 A1 WO2005082445 A1 WO 2005082445A1
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WO
WIPO (PCT)
Prior art keywords
segment
catheter
ofthe
millimeters
abutment
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.)
Ceased
Application number
PCT/US2005/005776
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English (en)
French (fr)
Inventor
Jan K. Voda
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.)
Boston Scientific Scimed Inc
Original Assignee
Scimed Life Systems Inc
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 Scimed Life Systems Inc filed Critical Scimed Life Systems Inc
Priority to AT05723592T priority Critical patent/ATE506984T1/de
Priority to DE602005027665T priority patent/DE602005027665D1/de
Priority to JP2007500949A priority patent/JP4805248B2/ja
Priority to EP05723592A priority patent/EP1725292B8/en
Priority to CA002558696A priority patent/CA2558696A1/en
Publication of WO2005082445A1 publication Critical patent/WO2005082445A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • A61M25/0021—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

  • This invention relates generally to catheters for coronary arteries and more particularly to a steerable catheter that has a distal segment to abut an inside surface of an ascending aorta and that also has a three dimensional distal portion to facilitate entry of a distal tip into the ostium of a right coronary artery extending from the ascending aorta such that the catheter is adequately supported for subsequent procedures.
  • PTCA percutaneous transluminal coronary angioplasty
  • One technique for performing PTCA in a right coronary artery includes inserting a guide catheter into a femoral artery and advancing the guide catheter such that its distal tip moves through that artery, up the descending aorta, and ultimately into the ostium of the right coronary artery.
  • a balloon catheter may then be pushed through the guide catheter into the right coronary artery to perform medical procedures in known manner.
  • a diagnostic catheter can be similarly placed and then used to conduct a radiopaque dye injected in known manner.
  • the main difference between a guide catheter and a diagnostic catheter is that the lumen is typically larger in a guide catheter to accommodate various tools and instruments that are pushed through the lumen.
  • catheters for the right coronary artery can be divided into two functional categories: the "completely preformed catheter” and the "steerable catheter". Both types have a preformed tip designed to be positioned in the ostium of the right coronary artery.
  • the completely preformed catheter known by some as a non-torqueable catheter, is designed such that the preformed tip can be positioned in the ostium of the right coronary artery simply by advancing the catheter to the proper level, without manipulating or torquing (twisting) the catheter.
  • a steerable catheter known by some as a partially preformed catheter or a torquable catheter, can be torqued (twisted) to steer the catheter to the desired location.
  • the proximal end of the catheter is torqued, typically in a clockwise direction, which causes the distal end of the catheter to also twist and be steered into the ostium of the right coronary artery.
  • Steerable catheters require a greater degree of skill, but work with a greater variety of morphologies.
  • Steerable catheters can be used for both therapeutic and diagnostic purposes and thus include both guide and diagnostic catheters.
  • "steerable catheter” as used herein includes the subclasses of both guide and diagnostic catheters.
  • the VR (Voda Right) catheter available from Scimed Life Systems, Inc. is three-dimensional and is a guide-type catheter, but it is not steerable.
  • the Williams catheter also available from Scimed Life Systems, Inc. is a three-dimensional steerable catheter, but it is a diagnostic catheter and not a guide catheter.
  • the present invention meets the aforementioned needs by providing a novel and improved catheter for a right coronary artery and especially a three dimensional steerable catheter to selectively engage the ostium of a right coronary artery in a patient.
  • the catheter of the present invention has a distal tip that can be readily placed in the ostia of right coronary arteries across a range of morphologies for such arteries and that is adequately supported when properly positioned.
  • the structure of the catheter is such that it allows a relatively long, atraumatic tip to be used which provides for easier, less traumatic use of the catheter.
  • Such a steerable catheter as defined by the present invention to engage the ostium of a right coronary artery in a patient comprises a proximal shaft having a proximal end to receive manipulation by a user outside a patient in whom the catheter is used, wherein the proximal shaft transmits torque applied at the proximal end.
  • This catheter further comprises a distal shaft extending from the proximal shaft opposite the proximal end of the proximal shaft such that the distal shaft is responsive to torque transmitted by the proximal shaft.
  • the distal shaft includes a preformed support section including: a transition segment extending from the proximal shaft; and an abutment segment extending from the transition segment such that the abutment segment abuts an interior surface of the ascending aorta of the patient when the catheter is in place within the patient.
  • the distal shaft also includes a preformed ostium entry section extending from the support section. It includes a first segment, extending from the abutment segment, and a second segment, extending from the first segment.
  • a catheter for a right coronary artery in accordance with the present invention can also be defined as comprising: a proximal shaft having a proximal end to receive manipulation by a user outside a patient in whom the catheter is used; and a distal shaft extending from the proximal shaft opposite the proximal end of the proximal shaft.
  • the distal shaft includes a preformed support section to abut a posterior interior surface of the ascending aorta of the patient.
  • This support section includes: a transition segment connected to the proximal shaft at a first bend initially forming an included angle of between 135 ° and 175 ° , wherein the transition segment is initially substantially linear; and an abutment segment connected to the transition segment at a second bend initially forming an included angle of between 135 and 175 , wherein the abutment segment is initially substantially linear.
  • the distal shaft also includes a preformed ostium entry section extending from the preformed support section.
  • the preformed ostium entry section includes: a first segment connected to the abutment segment at a third bend initially forming an included angle of between 80 ° and 170 ° , wherein the first segment is initially substantially linear; a second segment connected to the first segment at a fourth bend initially forming an included angle of between 90 and 175 ° , wherein the second segment is initially substantially linear; and wherein the first and second segments are initially offset in different directions from an imaginary plane including at least the abutment segment of the preformed support section.
  • the first segment is disposed at an initial angle of 130 to 180 relative to one such imaginary plane; and the second segment is disposed at an initial angle of 0 to 90 ° from a plane defined by the first segment and the abutment segment of the preformed support section.
  • the transition segment has a length between 20 millimeters and 80 millimeters
  • the abutment segment has a length between 5 millimeters and 40 millimeters
  • the first segment has a length between 5 millimeters and 55 millimeters
  • the second segment has a length between 5 millimeters and 55 millimeters.
  • the second segment terminates at a distal tip which enters the ostium of a right coronary artery when the catheter is properly placed in the patient.
  • the transition segment can be twisted relative to the proximal shaft.
  • a three dimensional steerable catheter to engage the ostium of a right coronary artery of a patient can also be defined as comprising a proximal shaft and a distal shaft extending from the proximal shaft.
  • the distal shaft includes: a preformed support section having a transition segment extending from the proximal shaft; an abutment segment extending from the transition segment; and a preformed ostium entry section extending from the support section.
  • the ostium entry section includes a first segment, extending from the abutment segment, and a second segment, extending from the first segment. The second segment terminates in a distal tip.
  • a three dimensional steerable catheter to selectively engage the ostium of a right coronary artery of a patient can also be defined as comprising a proximal shaft having a proximal end to receive manipulation by a user outside the patient in whom the catheter is used, wherein the proximal shaft transmits torque applied at the proximal end.
  • a distal shaft extends from the proximal shaft opposite the proximal end of the proximal shaft such that the distal shaft is responsive to torque transmitted by the proximal shaft.
  • the distal shaft includes a preformed support section having a transition segment extending from the proximal shaft and an abutment segment extending from the transition segment.
  • the preformed support section also includes a preformed ostium entry section extending from the support section and including a first segment extending from the abutment segment.
  • the abutment segment abuts an interior surface of the patient's ascending aorta in a plane formed by a tangent of an axis of the first segment when the catheter is positioned within the ostium of the right coronary artery.
  • a three dimensional steerable catheter to engage the ostium of a right coronary artery of a patient can also be defined as comprising a proximal shaft and a distal shaft extending from the proximal shaft.
  • the distal shaft includes: a preformed support section having a transition segment extending from the proximal shaft and an abutment segment extending from the transition segment; and a preformed ostium entry section extending from the support section and having a first segment, extending from the abutment segment, and a second segment, extending from the first segment.
  • the second segment terminates in a distal tip such that when the distal tip is positioned in the ostium of the right coronary artery the first segment and the second segment lie anterior to the support section.
  • a three dimensional steerable catheter to selectively engage the ostium of a right coronary artery of a patient can also be defined as comprising an abutment segment, a first segment extending from the abutment segment and a second segment extending from the first segment and terminating in a distal tip.
  • the abutment segment abuts an interior surface of the patient's ascending aorta in a plane formed by a tangent of an axis of the first segment and the second segment is coaxial to an axis of the patient's right coronary artery.
  • FIG. 1 is a side or lateral view of a preferred embodiment of the present invention.
  • FIG. 2 is an anterior-posterior view of the preferred embodiment as taken along line 2-2 shown in FIG. 1.
  • FIG. 3 is a view of the preferred embodiment as taken along line 3-3 shown in FIG. 1.
  • FIG. 4 schematically illustrates aortic and left and right coronary arterial structures for a patient in which a catheter as shown in FIGS. 1-3 is placed.
  • FIG. 5 is a view along line 5-5 in FIG. 4.
  • FIGS. 1-3 A catheter 2 for a right coronary artery in accordance with the present invention is illustrated in FIGS. 1-3.
  • the catheter 2 comprises a proximal shaft 4 having a proximal end 6 to receive manipulation by a user (not shown) outside a patient in whom the catheter 2 is used.
  • the catheter 2 further comprises a distal shaft 8 extending from the proximal shaft 4 opposite the proximal end 6.
  • At least one lumen 9 extends through the shafts 4, 8 to permit passage of other devices (e.g., a balloon catheter when catheter 2 is a guide catheter) or substances (e.g., a radiopaque dye when the catheter is a diagnostic catheter).
  • the distal shaft 8 includes a preformed support section 10 which both longitudinally and laterally supports a more distal portion of the catheter terminating in a tip 22.
  • a transition segment 12 connected to the proximal shaft 4 at a first bend or curve initially forming an included angle ⁇ a of between 135 and 175 or thereabouts, provides longitudinal and lateral support for the distal tip 22 so as to provide an offset from the axis of the proximal shaft 4 whereby the tip 22 section can be relatively long.
  • the transition segment 12 enables a longer distal tip to function as a shorter tip in passing through the body vessels and into the ostium of the right coronary artery, while maintaining the more gentle curve of a long tip when in the ostium of the right coronary artery, thereby facilitating the ability to move other equipment or substances through the bend and into the artery.
  • Length in the tip compensates for the offset used to enable lateral support, and length facilitates more gradual angular transitions.
  • the transition segment 12 preferably is initially substantially linear and has a length between 20 millimeters and 80 millimeters (or thereabouts) in the preferred embodiment.
  • references to angles, bends, curves, points of connection and the like in this description and in the claims are not to be taken as excluding various transitions from one segment to another; that is, these may be linearly sharp or distinct transitions, but may be, and preferably are, radiused or smooth curvilinear transitions.
  • the present invention is for use in a human body or a patient, and these terms are used synonymously herein.
  • Directional references used herein e.g., anterior, posterior, left, right
  • in the claims are relative to the patient in accordance with medical vernacular, except where these direction references are indicated as relative to something other than the patient (e.g., relative to another portion of the catheter). For example, patient's left means towards to patient's left hand.
  • the preformed support section 10 also comprises an abutment segment 14 connected to the transition segment 12 at a second bend or curve initially forming an included angle ⁇ * of between 135 ° and 175 ° or thereabouts.
  • ⁇ a and ot b are substantially the same angle such that proximal shaft 4 is substantially parallel to abutment segment 14.
  • the abutment segment 14 preferably is initially substantially linear and has a length between 5 millimeters and 40 millimeters or thereabouts in the preferred embodiment.
  • the abutment segment 14 provides support relative to the aortic wall. That is, the segment 14 abuts posteriorly on the interior wall of the ascending aorta when positioned as shown in FIGS.
  • the distal shaft 8 also includes a preformed ostium entry section 16 extending from the preformed support section 10 and terminating at the tip 22.
  • the preformed ostium entry section 16 includes a first segment 18 connected to the abutment segment 14 at a third bend or curve initially forming an included angle ⁇ c of between 80 ° and 170 ° or thereabouts.
  • the first segment 18 preferably is initially substantially linear and has a length between 5 millimeters and 55 millimeters or thereabouts in the preferred embodiment.
  • the preformed ostium entry section 16 further has a second segment 20 connected to the first segment 18 at a fourth bend or curve initially forming an included angle ⁇ , of between 90 and 175 or thereabouts.
  • the second segment terminates at the distal tip 22, preferably a soft, atraumatic tip to reduce damage during positioning and torquing.
  • the second segment 20 preferably is initially substantially linear and has a length between 5 millimeters and 55 millimeters or thereabouts (with the tip 22 being about 5 millimeters long) in the preferred embodiment.
  • the first and second segments 18, 20 that direct tip 22 into the ostium of the right coronary artery are initially offset from an imaginary plane 24 containing the transition and abutment segments 12, 14 of the preformed support section 10 in the orientation shown in FIG.
  • three-dimensional means, in at least a natural state of the catheter outside the patient, a shape or configuration outside more than a single principal plane of the axis of the lumen 9 of the catheter 2).
  • the lateral view shown in FIG. 1 illustrates two dimensions, the first being the length of catheter 2 and the second being the angles shown in FIG. 1 (namely, a , a t ,, ⁇ c and ⁇ _).
  • the third dimension is illustrated in FIG. 2, which shows angles e , ⁇ X f , ⁇ g and ⁇ h .
  • the segment 18 in at least a natural state of this particular configuration outside the patient, is preformed to lie only to the right of or coplanar with the plane 24 when the plane 24 is in front of and parallel to a patient's sagital plane when the preformed ostium entry section extends to the patient's anterior from the preformed support section (this would place the patient behind and facing toward catheter 2 in FIG. 2, or to the right of and facing toward catheter 2 in FIG. 1, or above and facing toward catheter 2 in FIG. 3).
  • the segment 18 extends generally to the patient's anterior and to the patient's right or clockwise from a plane through the aorta parallel to the sagittal (i.e., midsagittal) plane.
  • the first segment 18 is disposed at an initial angle ⁇ e of 130 to 180 or thereabouts relative to the plane 24 of the support section 10. While preferably less than 180°, ⁇ e may be equivalent to 180° such that abutment section 14 and first segment 18 appear to be linear in the anterior-posterior view shown in FIG. 2.
  • the second segment 20 extends in a different direction back toward the plane 24, including to the extent of intersecting it.
  • the second segment 20 is disposed at an initial angle ct f of 0 to 90 or thereabouts from an imaginary plane 26 (FIG. 3) defined by the first segment 18 and the abutment segment 14.
  • the planes 24, 26 are both perpendicular to an imaginary reference plane, such as the plane of the sheet containing FIG. 3.
  • the abutment segment 14 can be at an angle ⁇ g (FIG.
  • transition segment 12 can be bent or curved relative to the proximal shaft 4 or the plane 24, such as at an angle ⁇ h (FIG. 2) of between 140° and 180° (or more) or thereabouts.
  • ⁇ h FIG. 2
  • these segments can be offset at one or two angles or curves (which can also be achieved as rotations) relative to one of the stated references.
  • the distal portion can be twisted relative to the proximal portion. That is, the transition segment 12 (and thus the other distal portions extending from it) can be twisted (for example, from about 5° to 90°) relative to the proximal shaft 4.
  • the catheter of the present invention can be made of known materials and with known techniques.
  • the material or materials of construction may be the same throughout the catheter, or different materials may be used.
  • a typical material is a known type of plastic used in other catheters, and it can be of a type which itself provides sufficient stiffness to have a desired torque-transmitting capability; however, other constructions can be used, a non-limiting example of which is to incorporate a metallic wire or braid in or with the plastic tubing of the catheter body to provide or enhance the torque-transmitting characteristic of the catheter.
  • the material of construction prevents or reduces trauma as the catheter is moved through the body (this is especially desirable for the tip 22 which preferably is defined by a thin wall made of a very soft material as known in the art).
  • the tip 22 which preferably is defined by a thin wall made of a very soft material as known in the art.
  • One or more particular combinations of angles and lengths from the aforementioned ranges are selected for manufacturing specific catheters as are suitable for use in a human. Part of a typical human cardiovascular system is schematically shown in the side or lateral view of FIG. 4 and the indicated sectional view of FIG. 5.
  • This system includes an aorta 30 comprised of a descending aorta 30a, an ascending aorta 30b, and an aortic arch 30c which extends from the descending aorta 30a to the ascending aorta 30b over a curve of approximately 180 ° .
  • the ascending aorta 30b branches through a right ostium 32 and a left ostium 34 into a right coronary artery 36 and a left coronary artery 38, respectively.
  • the left and right coronary arteries 38 and 36 are typically separated by an angle of approximately 120 ° .
  • FIGS.4 and 5 is the catheter 2 placed for effective use in a patient. Placement of the catheter 2 as shown in FIGS.
  • abutment segment 14 of the preformed support section 10 abut an interior surface of the ascending aorta 30b of the patient substantially opposite the ostium 32, which typically is a posterior interior surface 40. Entry of the distal tip 22 into the ostium 32 is obtained by applying torque to the proximal end 6 and transmitting the torque through the proximal shaft 4 and the distal shaft 8. More specifically, the catheter 2 is advanced in conventional manner until the distal tip 22 is slightly above the ostium 32 of the right coronary artery 36.
  • abutment segment 14 is positioned at least about 5 millimeters above the level of the ostium 32 when distal tip 22 is positioned within the ostium 32.
  • first segment 18 and second segment 20 lie anterior to support section 10 when distal tip 22 is positioned within the ostium 32.
  • Such a geometric configuration allows distal tip 22 to be positioned deeper into the coronary artery 36 (i.e., effectively lengthens catheter 2) such that distal tip 22 is more secure and less likely to become dislodged from the coronary artery 36 when pushing tools or other substances through the lumen 9 of the catheter.
  • Engagement with the ostium 32 is secured by the abutment segment 14 engaging the aortic wall, and ease of equipment or substance transmission through the lumen 9 of the catheter 2 is facilitated by the relatively long distal tip 22 as offset by the transition segment 12.
  • the three dimensional configuration of the present invention allows distal tip 22 to be inserted into the ostia of right coronary arteries across a range of morphologies.
  • distal tip 22 and second segment 20 are coaxial with the axis of the right coronary artery when properly positioned.
  • This coaxial arrangement reduces trauma to the right coronary artery when the catheter is positioned in the right coronary artery and allows distal tip 22 to be inserted deeper into the right coronary artery.
  • angle ot f creates a deviation of the second segment 20 to the patient's left (when tip 22 is directed anteriorly of a patient). This deviation to the left allows distal tip 22 to follow (rather than lead if there was a deviation to the right) when catheter 2 is torqued in the customary clockwise direction.
  • distal tip 22 follows an imaginary plane that includes abutment segment 14 and a point of connection between first and second segments 18, 20 when proximal end 6 is torqued clockwise.
  • the point of connection between first and second segments 18, 20 may be a distinct transition or a radiused or smooth curvilinear transition. Having the distal tip 22 follow may minimize gouging and damage caused by rotating and may reduce the amount of torque (force) necessary to rotate catheter 2 (even though catheter 2 must be twisted a greater number of degrees as compared to a deviation to the right.).
  • the three dimensional configuration of the present invention also allows for enhanced stability and support when the distal tip 22 is positioned in the ostium 32 of a right coronary artery 36.
  • abutment section 14 abuts the interior surface of the ascending aorta 30b in a plane defined by the tangent at the interior surface of the ascending aorta 30b, where tangent 42 is substantially perpendicular to axis 44 of first segment 18.
  • ⁇ ; and ⁇ .j are in the range of about 60-120°, or more preferably in the range of about 70°- 110° ° but are most preferably 90°.
  • the present invention provides a preformed, steerable catheter, particularly a preformed, steerable guide or diagnostic catheter, for a right coronary artery.
  • the present invention is well adapted to carry out the objects and attain the ends and advantages mentioned above as well as those inherent therein. While preferred embodiments ofthe invention have been described for the purpose of this disclosure, changes in the construction and arrangement of parts and the performance of steps can be made by those skilled in the art, which changes are encompassed within the spirit of this invention as defined by the appended claims.

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PCT/US2005/005776 2004-02-24 2005-02-24 Steerable catheter for right coronary artery Ceased WO2005082445A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT05723592T ATE506984T1 (de) 2004-02-24 2005-02-24 Lenkbarer katheter für die rechte koronararterie
DE602005027665T DE602005027665D1 (de) 2004-02-24 2005-02-24 Lenkbarer katheter für die rechte koronararterie
JP2007500949A JP4805248B2 (ja) 2004-02-24 2005-02-24 右冠動脈のための操縦可能なカテーテル
EP05723592A EP1725292B8 (en) 2004-02-24 2005-02-24 Steerable catheter for right coronary artery
CA002558696A CA2558696A1 (en) 2004-02-24 2005-02-24 Steerable catheter for right coronary artery

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/786,893 US7867218B1 (en) 2004-02-24 2004-02-24 Steerable catheter for right coronary artery
US10/786,893 2004-02-24

Publications (1)

Publication Number Publication Date
WO2005082445A1 true WO2005082445A1 (en) 2005-09-09

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Application Number Title Priority Date Filing Date
PCT/US2005/005776 Ceased WO2005082445A1 (en) 2004-02-24 2005-02-24 Steerable catheter for right coronary artery

Country Status (7)

Country Link
US (1) US7867218B1 (enExample)
EP (1) EP1725292B8 (enExample)
JP (1) JP4805248B2 (enExample)
AT (1) ATE506984T1 (enExample)
CA (1) CA2558696A1 (enExample)
DE (1) DE602005027665D1 (enExample)
WO (1) WO2005082445A1 (enExample)

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EP2275170A1 (fr) * 2009-07-15 2011-01-19 Sorin CRM SAS Ensemble implantable dans le réseau veineux coronarien, comprenant une sonde de stimulation à vis d'ancrage
US10071228B2 (en) 2008-06-20 2018-09-11 Sorin Crm Sas Preformed stylet for guiding a lead to contact the septum

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WO2007120505A1 (en) 2006-03-31 2007-10-25 C. R. Bard, Inc. Catheter including arcuate transition region
WO2009029508A1 (en) * 2007-08-28 2009-03-05 Johnnie B. Byrd, Sr. Alzheimer's Center And Research Institute, Inc. Intracranial catheter and methods of use
JP2011083596A (ja) * 2009-09-18 2011-04-28 Terumo Corp 冠動脈用カテーテル及びその係合方法
EP2308550B1 (fr) * 2009-10-07 2016-01-13 Sorin CRM SAS Sonde épicardique de stimulation/défibrillation à vis, implantable par un cathéter-guide introduit dans l'espace péricardique
WO2013016275A1 (en) 2011-07-22 2013-01-31 Cook Medical Technologies Llc Irrigation devices adapted to be used with a light source for the identification and treatment of bodily passages
US9375138B2 (en) 2011-11-25 2016-06-28 Cook Medical Technologies Llc Steerable guide member and catheter
US9314593B2 (en) 2012-09-24 2016-04-19 Cook Medical Technologies Llc Medical devices for the identification and treatment of bodily passages
US10252023B2 (en) 2013-01-11 2019-04-09 C. R. Bard, Inc. Curved catheter and methods for making same
EP2961308B1 (en) 2013-02-28 2020-03-18 Cook Medical Technologies LLC Medical devices, systems, and methods for the visualization and treatment of bodily passages
US9549748B2 (en) 2013-08-01 2017-01-24 Cook Medical Technologies Llc Methods of locating and treating tissue in a wall defining a bodily passage
CA2934555C (en) 2013-12-20 2020-07-07 Microvention, Inc. Device delivery system
US9937323B2 (en) 2014-02-28 2018-04-10 Cook Medical Technologies Llc Deflectable catheters, systems, and methods for the visualization and treatment of bodily passages
US10195398B2 (en) 2014-08-13 2019-02-05 Cook Medical Technologies Llc Tension member seal and securing mechanism for medical devices
CN109224262A (zh) * 2018-10-25 2019-01-18 大连科万维医疗科技有限公司 一种左心室引流管
JP7665520B2 (ja) * 2019-09-30 2025-04-21 テルモ株式会社 カテーテル

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ATE506984T1 (de) 2011-05-15
CA2558696A1 (en) 2005-09-09
EP1725292B1 (en) 2011-04-27
EP1725292A1 (en) 2006-11-29
JP2007523726A (ja) 2007-08-23
US7867218B1 (en) 2011-01-11
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JP4805248B2 (ja) 2011-11-02
EP1725292B8 (en) 2011-09-28

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