WO1997010749A1 - Commande de la forme d'un catheter par un element tubulaire interne pliable - Google Patents

Commande de la forme d'un catheter par un element tubulaire interne pliable Download PDF

Info

Publication number
WO1997010749A1
WO1997010749A1 PCT/US1996/015220 US9615220W WO9710749A1 WO 1997010749 A1 WO1997010749 A1 WO 1997010749A1 US 9615220 W US9615220 W US 9615220W WO 9710749 A1 WO9710749 A1 WO 9710749A1
Authority
WO
WIPO (PCT)
Prior art keywords
catheter
shape
segments
mbular member
catheter body
Prior art date
Application number
PCT/US1996/015220
Other languages
English (en)
Inventor
Zev Galel
Cem Kilicci
Henry Bourang
Original Assignee
Guided Medical 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
Priority claimed from US08/541,453 external-priority patent/US5632734A/en
Application filed by Guided Medical Systems, Inc. filed Critical Guided Medical Systems, Inc.
Priority to AU71164/96A priority Critical patent/AU7116496A/en
Publication of WO1997010749A1 publication Critical patent/WO1997010749A1/fr

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
    • A61M25/0021—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
    • 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
    • A61M25/0662—Guide tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M2025/0161—Tip steering devices wherein the distal tips have two or more deflection regions
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning

Definitions

  • This invention resides in the construction and use of catheters for interventional procedures in fields such as cardiology, neuroradiology, urology and gastroenterology.
  • a major problem in the use of catheters for these procedures lies in the insertion of the catheter through bodily passages to reach the vessel or chamber of interest and the placement of the functional element at the distal tip of the catheter at the site where that element is needed.
  • holding the element at the site while the site moves in response to normal bodily functions such as breathing or a heart beat is also a problem.
  • Guide catheters are a partial means of solving these problems.
  • Guide catheters are relatively large lumen catheters used to guide smaller diameter catheters such as therapeutic, diagnostic or imaging catheters into bodily passages that are curved or branched.
  • a guide catheter specially designed for a procedure in a coronary artery for example, is shaped such that when the guide catheter is inserted into the femoral artery and through the aorta of a patient, the curvature of the catheter will place its distal tip inside one of the coronary ostia.
  • a guide catheter for the right coronary artery is shaped differently than one for the left coronary artery.
  • a guide catheter designed to provide access to a carotid artery is still different in shape. Guide catheters of still other shapes are designed for other bodily passages and regions of interest.
  • a guide catheter When a guide catheter is inserted in a patient, its shape is distorted by the connecting passages, such as the aortic arch or the venae cavae.
  • the curves or bends close to the distal end of the catheter retain their shape, however, which is intended to place the opening at the distal end of the guide catheter at the desired location in the vessel or on the vessel wall.
  • Improved control and stabilization of the catheter position is often achieved by anchoring the catheter against an opposing wall, and the ability to do this also depends on the predisposed shape of the catheter.
  • This invention resides in a composite catheter to which a curvature in the distal region can be either imposed, removed, or changed, or whose rigidity can be increased, all by manipulation of the catheter at its proximal end. The manipulation can be done either prior to or after insertion of the catheter into the body.
  • the invention further resides in the shape- modifying component of the composite catheter that permits the manipulation to be performed. This invention is applicable to catheters in general, including but not limited to guide catheters.
  • the composite catheter includes a catheter body and a tubular member either residing inside the catheter body or insertable into it, but in either case movable within the catheter body.
  • the distal end of the tubular member contains a series of relatively rigid segments alternating with segments that are collapsible along the axis of the tubular member.
  • the tubular member can thus be manipulated between a compressed configuration in which the rigid segments are stacked to form a self-supporting tube of fixed curvature or straightness, and an extended configuration in which the rigid segments are spaced apart sufficiently to allow variations in the directions of individual segments.
  • the rigid segments themselves can be straight, as sections of a straight cylinder, or curved, as sections of a torus (the surface generated by a circle rotating about but not intersecting an axis in its own plane, i.e. , a doughnut shape).
  • the catheter body is flexible relative to the tubular member, and will preferably have a shape memory which it will assume when not influenced by the tubular member or its relatively rigid segments. When the tubular member is inside the catheter body and compressed to collapse the connecting segments, the catheter body will assume a curvature (or straightness) similar to that of the stacked rigid segments of the tubular member. When the compression is released, the catheter body will revert to its shape memory or to an intermediate shape resulting from any residual influence of the tubular member still retained inside.
  • Compression of the segments in the tubular member can therefore either increase the curvature of the catheter body (i.e. , shorten the radius of curvature) or decrease it (lengthen the radius of curvature), depending on the shape memory of the catheter body and the shapes of the segments.
  • the distal segment of the tubular member can be fixed inside the catheter body at a location that will result in the proximal end of the tubular member residing outside the catheter body. Rigidification or relaxation can then be achieved by pushing or pulling on the proximal end of the tubular member.
  • the tubular member can be separate from and not joined to the catheter body. Rigidification and relaxation of the catheter with these non-joined components can be achieved outside the patient's body by inserting the tubular member into the catheter body and manually squeezing or pinching the catheter body around the distal tip of the tubular member to anchor the distal tip while the proximal end of the tubular member is moved in or out.
  • the tubular member lumen will accommodate functional catheters as do the lumens of conventional guide catheters.
  • the composite catheter of this invention is as a guide catheter for electrophysiology procedures such as the mapping and ablation procedure referred to above. These procedures require that the guide catheter be curved sufficiently in the direction of the wall of the heart chamber that the tip of the ablation catheter presses against the locus of the arrhythmia. The guide catheter however must be sufficiently straight to be directed through the valves into the appropriate chamber. After the guide catheter has been fully inserted, the tubular member can be manipulated to change the shape of the guide catheter from straight to curved. Depending on the shape memory of the catheter body and the shapes of the rigid segments of the tubular member, this change may be effected either by relaxing the tubular member or by compressing it.
  • FIG. 1 is a side view of a tubular member in accordance with this invention, in a relaxed state.
  • FIG. 2 is a side view of the tubular member of FIG. 1 in the compressed state.
  • FIG. 3 is a side view of a second tubular member of this invention, in a relaxed state.
  • FIG. 4 is a side view of the tubular member of FIG. 3 in the compressed state.
  • FIG. 5 is a side view of a section of a composite catheter in accordance with this invention, with a portion of the tubular member shown in dashed lines.
  • FIG. 6 is a cross section of a human aorta with a composite catheter of this invention inserted through the aorta to the right coronary artery.
  • FIG. 7 is the same view as FIG. 6, with the composite catheter in a configuration resulting from compression of the tubular member.
  • FIG. 8 is a cross section of a human aorta with a second composite catheter of this invention inserted through the aorta to the right coronary artery.
  • FIG. 9 is the same view as FIG. 8, with the composite catheter in a configuration resulting from compression of the tubular member.
  • FIG. 10 is a cross section of a human aorta with a third composite catheter of this invention inserted through the aorta to the right coronary artery.
  • FIG. 11 is the same view as FIG. 10, with the composite catheter in a configuration resulting from compression of the tubular member.
  • FIG. 12 is a side view of a catheter body in accordance with this invention, without a mbular member inside.
  • FIG. 13 is the same view as FIG. 12, except that a mbular member has been placed inside the catheter body and held in a relaxed or extended condition.
  • FIG. 14 is the same view as FIG. 13, except that the tubular member has been compressed.
  • FIG. 15 is a front view of a human heart in cross section, with a composite catheter in accordance with this invention placed inside the right ventricle and a mapping and ablation catheter passing through the guide catheter.
  • FIG. 16 is a front view of a human heart in cross section, with a composite catheter in accordance with this invention placed inside the left ventricle and a mapping and ablation catheter passing through the guide catheter.
  • FIGS. 1 and 2 illustrate a single mbular member 11 prior to insertion in, or fixation to, a catheter body.
  • the distal region of the tubular member is shown in both Figures, in a partially extended condition in FIG. 1 and in a compressed condition in FIG. 2.
  • the tubular member is made up of a shaft 12 and a series of short cylindrical segments 13 separated by connecting segments 14.
  • the shaft 12 and cylindrical segments 13 are hollow cylinders or cylindrical sections, and are relatively rigid, with sufficient rigidity to resist axial collapse under an axially directed force or bending under a lateral torque.
  • the connecting segments 14 are also cylindrical segments but are flexible, collapsing under an axial force or bending under a lateral torque.
  • FIGS. 3 and 4 illustrate a mbular member 20 which forms a curve when compressed.
  • the rigid segments 21 are sections of a torus, and when stacked against each other, compressing the flexible connecting sections 22 in between, they form a curved mbe, as shown in FIG.
  • FIG. 4 which shows the mbular member compressed.
  • the mbular member When not compressed, the mbular member is flexible, and can be straight as shown in FIG. 3, curved to a greater or lesser degree than shown in FIG. 4, or in a different direction.
  • the flexibility in the non-compressed condition is indicated by the arrows 23 in FIG. 3.
  • FIGS. 6 and 7 illustrate a catheter of the invention having a shape of the Amplatz
  • the catheter is inserted in an aorta, passing through the aortic arch 31 to the aortic root 32, in an attempt to place the distal end 33 of the catheter inside the entry to the right coronary artery 34.
  • the catheter is a composite of the catheter body and mbular member as discussed above. In FIG. 6, the mbular member is relaxed, and the section 35 of the catheter body in which the separated rigid sections of the tubular member reside is curved to follow the shape memory of the catheter body 36, since the portion of the mbular member formed by the separated mbular sections is flexible.
  • the distal tip 33 is not properly placed, however, being too high to enter the coronary artery 34. This is corrected in FIG.
  • section 35 of the catheter body in which the separated rigid sections of the mbular member reside is shortened and partially straightened by forcing the rigid sections against each other. This is done by forcing the mbular member inward from the proximal end while its distal end is affixed to the inside wall of the catheter body.
  • the result of the change in shape is a more gentle curve in the distal region of the catheter body, aligning the distal tip 33 with the artery 34.
  • FIGS. 8 and 9 illustrate a catheter of the Judkins Right type 40.
  • the catheter passes through the aortic arch 31, and its distal tip 41 enters the right coronary artery 34.
  • this catheter is a composite of the catheter body and tubular member.
  • the mbular member is relaxed and its rigid segments separated.
  • the individual rigid segments are slightly curved, as in FIGS. 3 and 4, while the shape memory of the catheter body in the vicinity of these segments is straight.
  • the shape of the section 42 of the catheter body immediately adjacent to these rigid segments is approximately straight since it is governed by the shape memory.
  • FIGS. 10 and 11 illustrate a composite catheter 46 that has a Judkins Right shape when the mbular member is compressed and an Amplatz Right shape when the mbular member is relaxed.
  • the individual rigid segments of the mbular member are straight, unlike those in the composite catheter of FIGS. 8 and 9.
  • the rigid segments form a substantially straight line like the corresponding portion of the conventional Judkins shape.
  • the section 47 of the catheter body where the rigid segments of the mbular member reside has a curved shape memory, which it assumes in the relaxed configuration of FIG. 10, but which is changed into the relatively straight Judkins shape in FIG. 11.
  • the composite catheter can thus have three distinct shapes or degrees of curvamre — one with the mbular member removed entirely from the catheter body, a second with the mbular member inserted in the catheter body but the connecting segments fully extended, and a tliird with the mbular member inserted and the connecting segments collapsed so that the rigid segments are compressed against each other.
  • An example of a composite catheter 50 with this characteristic is shown in FIGS.
  • the rigid segments 51 of the mbular member are straight while the shape memory of the catheter body is curved. Accordingly, the mbular member reduces the curvamre of the catheter body to successive degrees, as represented by the Figures in the order shown. The opposite effect is readily achieved by a catheter body with relatively straight shape memory and a mbular member with curved rigid segments.
  • FIGS. 15 and 16 Each of these Figures shows a cross section of the human heart, showing the right atrium 60, left atrium 61, right ventricle 62, left ventricle 63, aortic arch 64, ascending aorta 65 and superior vena cava 66.
  • FIG. 15 illustrates mapping and ablation in the right ventricle 62 by the use of a mapping and ablation catheter 70 directed to the appropriate chamber wall by a composite guide catheter 71 in accordance with this invention.
  • Manipulation of the mbular member (not shown) inside the guide catheter permits the operator to move the guide catheter in the direction of the arrows 72, to adjust the pressure of the ablation tip 73 against the chamber wall 74.
  • FIG. 16 illustrates mapping and ablation in the left ventricle 63, again by the use of a mapping and ablation catheter 76 directed by a composite guide catheter 77 in accordance with this invention.
  • Manipulation of the mbular member permits the operator to adjust the position of the guide catheter in the directions indicated by the dashed lines to reach a range of locations on the chamber wall 78 and to apply sufficient pressure to maintain contact.
  • the tip is actuated and the procedure is performed.
  • the rigid sections in any single mbular member can be identical in all respects or they can vary such as by differing in length, curvamre or rigidity. Specialized shapes of highly controlled curvamre and specialized shape changes can be obtained by a appropriate combination of rigid sections of differing dimensions or construction.
  • the lengths of the collapsible connecting sections in a single mbular member can likewise vary to achieve a similar effect.
  • the rigid sections are preferably rings ranging from about 0.1 cm to about 1.0 cm in length, and most preferably about 0.2 cm to about 0.3 cm.
  • the collapsible connecting segments are generally of a similar size.
  • the rigid segments may be formed of metals or metal alloys, although hard plastics or composites can also be used.
  • the connecting elements may be thin-wall Teflon tubing, or any other compressible or collapsible material.
  • the number of rigid segments will depend on the type and degree of curvamre change, but in general, there will be at least four such segments, preferably ten to thirty.
  • the uncurved length of the catheter body will generally range from about 50 cm to about 150 cm, preferably from about 90 cm to about 120 cm.
  • the catheter body will have a lumen with a diameter of from about 1.75 mm to about 3.0 mm, preferably from about 2.0 mm to about 2.75 mm.
  • the mbular member will be small enough to fit within the lumen of the catheter body with a sufficiently loose fit to be moved longimdinally inside the lumen, but large enough so that the lumen of the mbular member itself can accommodate a working catheter, or two or more if necessary.
  • the shape memory of the catheter body when not under the influence of the mbular member may be inherent in the catheter body itself, imposed by molding, tempering, or alloying techniques or other methods known to those skilled in the art.
  • the shape memory may be imparted and maintained by one or more spring rods (not shown in the drawings) embedded in the wall of the catheter body.
  • the spring rods will be straight or curved as needed, and will be resilient enough that their shapes will be modified by the rigid segments of the mbular member yet capable of resuming the curvature when the rigid segments are removed.
  • Manipulation of the mbular member is performed at the proximal end of the catheter, outside the patient's body. Manipulation is readily performed by hand, with the operator assisted by visualization of the distal tip of the catheter. Visualization may be achieved by conventional means. Fluoroscopy, a common visualization technique for catheters, is one example.
  • the movement and securement of the mbular member relative to the catheter body can be achieved at the proximal end by simple mechanical devices. Examples are a threaded knob, a ratchet-type mechanism, or various kinds of toothed or locking mechanisms which can be manipulated by hand. Other examples will be readily apparent to those skilled in the art.
  • One specific example is a toothed track on a stationary member to which the catheter body is mounted, and a spring-loaded catch on a mobile member to which the mbular member is mounted, the catch mounted through a pivot to a toothed wheel.
  • the wheel When the wheel is pushed by the user's thumb to engage the track, the catch is lifted away from engagement with the track. Turning of the wheel while pressing it against the track by the user's thumb moves the mobile member relative to the stationary member, and release of the wheel causes the catch to engage the track, locking the members relative to each other.
  • Many other mechanisms with a similar ease of manipulation can be substimted.

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

Un cathéter composite est formé par la combinaison du corps (25) du cathéter et d'un élément tubulaire (11) pouvant être inséré ou fixé à l'intérieur du corps. L'élément tubulaire renferme une série de segments relativement rigides (13) alternant avec des segments pliables, flexibles (14) ce qui permet aux segments rigides de s'empiler efficacement les uns contre les autres lorsque l'élément tubulaire (11) est comprimé axialement. La forme obtenue lorsque les segments rigides (13) sont poussés les uns contre les autres diffère de celle de la mémoire de forme du corps (25) du cathéter dans certains modes de réalisation de l'invention, et le passage de l'élément tubulaire (11) d'un état relâché à l'état comprimé à l'intérieur du corps (25) du cathéter peut par conséquent provoquer une modification de la forme de ce dernier (25).
PCT/US1996/015220 1995-09-22 1996-09-20 Commande de la forme d'un catheter par un element tubulaire interne pliable WO1997010749A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU71164/96A AU7116496A (en) 1995-09-22 1996-09-20 Catheter shape control by collapsible inner tubular member

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US418695P 1995-09-22 1995-09-22
US60/004,186 1995-09-22
US08/541,453 US5632734A (en) 1995-10-10 1995-10-10 Catheter shape control by collapsible inner tubular member
US08/541,453 1995-10-10

Publications (1)

Publication Number Publication Date
WO1997010749A1 true WO1997010749A1 (fr) 1997-03-27

Family

ID=26672727

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/015220 WO1997010749A1 (fr) 1995-09-22 1996-09-20 Commande de la forme d'un catheter par un element tubulaire interne pliable

Country Status (2)

Country Link
AU (1) AU7116496A (fr)
WO (1) WO1997010749A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005072806A3 (fr) * 2004-01-28 2006-02-02 Applied Med Resources Tubulure medicale presentant des caracteristiques variables etson procede de fabrication
JP2009515597A (ja) * 2005-11-14 2009-04-16 ボストン サイエンティフィック リミテッド 捩れ分岐給送システム
WO2011141162A3 (fr) * 2010-05-11 2012-01-12 Pleuratech Aps Dispositif
US9675378B2 (en) 2002-11-15 2017-06-13 Applied Medical Resources Corporation Steerable kink-resistant sheath
USD918387S1 (en) 2019-03-05 2021-05-04 Surgery-Tech Aps Medical device
US11229347B2 (en) 2017-12-08 2022-01-25 Surgerytech Aps Endoscopy system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5308342A (en) * 1991-08-07 1994-05-03 Target Therapeutics, Inc. Variable stiffness catheter
US5314418A (en) * 1990-09-21 1994-05-24 Toyo Boseki Kabushiki Kaisha Cannula
US5354263A (en) * 1989-01-25 1994-10-11 Coll Milton E Ureteral stent-catheter having varying diameter stent
US5448989A (en) * 1993-02-22 1995-09-12 Richard Wolf Gmbh Medical instrument shaft capable of positive and non-positive linking of segments
US5509909A (en) * 1994-10-06 1996-04-23 Moy; Grant G. Bent chest tube assembly
US5549581A (en) * 1993-08-13 1996-08-27 Daig Corporation Coronary sinus catheter
US5569218A (en) * 1994-02-14 1996-10-29 Scimed Life Systems, Inc. Elastic guide catheter transition element

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5354263A (en) * 1989-01-25 1994-10-11 Coll Milton E Ureteral stent-catheter having varying diameter stent
US5314418A (en) * 1990-09-21 1994-05-24 Toyo Boseki Kabushiki Kaisha Cannula
US5308342A (en) * 1991-08-07 1994-05-03 Target Therapeutics, Inc. Variable stiffness catheter
US5448989A (en) * 1993-02-22 1995-09-12 Richard Wolf Gmbh Medical instrument shaft capable of positive and non-positive linking of segments
US5549581A (en) * 1993-08-13 1996-08-27 Daig Corporation Coronary sinus catheter
US5569218A (en) * 1994-02-14 1996-10-29 Scimed Life Systems, Inc. Elastic guide catheter transition element
US5509909A (en) * 1994-10-06 1996-04-23 Moy; Grant G. Bent chest tube assembly

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9675378B2 (en) 2002-11-15 2017-06-13 Applied Medical Resources Corporation Steerable kink-resistant sheath
WO2005072806A3 (fr) * 2004-01-28 2006-02-02 Applied Med Resources Tubulure medicale presentant des caracteristiques variables etson procede de fabrication
US9987460B2 (en) 2004-01-28 2018-06-05 Applied Medical Resources Corporation Medical tubing having variable characteristcs and method of making same
US10765832B2 (en) 2004-01-28 2020-09-08 Applied Medical Resources Corporation Medical tubing having variable characteristics and method of making same
JP2009515597A (ja) * 2005-11-14 2009-04-16 ボストン サイエンティフィック リミテッド 捩れ分岐給送システム
WO2011141162A3 (fr) * 2010-05-11 2012-01-12 Pleuratech Aps Dispositif
CN102933252A (zh) * 2010-05-11 2013-02-13 普鲁尔拉技术有限公司 装置
AU2011252411B2 (en) * 2010-05-11 2015-03-12 Pleuratech Aps Device
US9526876B2 (en) 2010-05-11 2016-12-27 Pieuratech APS Catheter guiding device
US11229347B2 (en) 2017-12-08 2022-01-25 Surgerytech Aps Endoscopy system
USD918387S1 (en) 2019-03-05 2021-05-04 Surgery-Tech Aps Medical device

Also Published As

Publication number Publication date
AU7116496A (en) 1997-04-09

Similar Documents

Publication Publication Date Title
US5632734A (en) Catheter shape control by collapsible inner tubular member
US7481793B2 (en) Modular steerable sheath catheters
US4960411A (en) Low profile sterrable soft-tip catheter
JP3349151B2 (ja) 内部マンドレルを有するカテーテルと使用方法
US5114414A (en) Low profile steerable catheter
US4884573A (en) Very low profile angioplasty balloon catheter with capacity to use steerable, removable guidewire
JP3469578B2 (ja) 予め形成された冠状動脈用ガイドカテーテル
US4873983A (en) Steerable guidewire for vascular system
US5207229A (en) Flexibility steerable guidewire with inflatable balloon
US5215540A (en) Right coronary catheter
US6544215B1 (en) Steerable device for introducing diagnostic and therapeutic apparatus into the body
US5306262A (en) Coronary catheter
EP0513198B1 (fr) Catheter a ancre foraminee
US5059176A (en) Vascular system steerable guidewire with inflatable balloon
JP3142547B2 (ja) カテーテルを迅速に交換するためのシステム
JP7188847B2 (ja) 操縦可能なデバイスおよびシステム
US5957911A (en) Left coronary guiding catheter
WO2004016310A2 (fr) Mecanisme d'articulation
MXPA01010074A (es) Cateter manipulable mecanicamente.
US20030114832A1 (en) Interventional catheter with three dimensional articulation
WO2002053221A1 (fr) Appareil de guidage flexible
WO2001023022A1 (fr) Instrument medical a rigidite variable
WO1999033509A1 (fr) Sonde-guide susceptible de s'inflechir
JP2006528052A (ja) 多目的介入冠状動脈ガイドカテーテル
EP0176865B1 (fr) Sonde à pointe molle dirigeable et méthode pour son utilisation

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE HU IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG UZ VN AM AZ BY KG KZ MD RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI

121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase