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Publication numberUS3625200 A
Publication typeGrant
Publication dateDec 7, 1971
Filing dateAug 26, 1969
Priority dateAug 26, 1969
Publication numberUS 3625200 A, US 3625200A, US-A-3625200, US3625200 A, US3625200A
InventorsWolf F Muller
Original AssigneeUs Catheter & Instr Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Controlled curvable tip member
US 3625200 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent [72] Inventor Wolf F. Muller Southampton, N.Y. [21] Appl. No. 853,147 [22] Filed Aug. 26, 1969 [45] Patented Dec. 7, 1971 [73] Assignee United States Catheter & Instrument Corporation Glen Falls, N.Y.

[ 54] CONTROLLED CURVABLE TIP MEMBER 9 Claims, 4 Drawing Figs.

[52] U.S. Cl l28/2.05 R, l28/D1G. 9, 128/303, l28/328, 128/348 [51] Int. Cl A6lb 10/00, A61m 25/00 [50] Field of Search 128/2.05 R, 2, 3-8, 328, 303, 349, 348, 356, D16. 9

[56] References Cited UNITED STATES PATENTS 1,733,239 10/1929 Roberts 128/398 2,975,785 3/1961 Sheldon. 128/6 3,060,972 10/1962 Sheldon 128/4 UX OTHER REFERENCES Smith, G. A. et al., Surgery, Vol.27, No. 6, June, 1950, ppv 8l7-82l,(copyin 128/348) Primary Examiner- Richard A. Gaudet Assistant Examiner Kyle L. Howell Attorney-W. Saxton Seward ABSTRACT: A wire-controlled curvable tip for a spring guide comprising solid cylindrical links engaging each other with nonlocking ball-and-socket type of articulation and adjustable to varying degrees of curvature by means of wires, each wire passing through a series of matching tunnels lengthwise of the links, secured at one end in the most distally located link and manipulated by applying differential tension to the other ends ofthe respective wires at the proximal end ofthe spring guide.


U J F INVENTOR WOLF E MULLER 1 CONTROLLED CURVABLE TIP MEMBER THE INVENTION This invention relates to new and useful improvements in spring guides, elongated medical devices, e.g. used in vascular, intestinal, urological, etc. manipulations where the distal end within the body must be controlled from the proximal end outside the body and more particularly seeks to provide such a device that has a controlled curvable tip for easy deflection from straight line courses.

The marked advances in cardiac and vascular surgery in the past few years and other medical problems that require diagnostic study of the vascular beds and systems has led to the extensive use of cardiac or vascular catheters, particularly for retrograde aortography and angiocardiography, and less often to take blood samples, determine oxygen content, infuse medicaments, and various other uses that require the insertion of a relatively long catheter to an internal site that requires movement of the catheter into branch vessels at sharp angles relative to the feeding direction of the catheter.

The most common method for insertion of such catheters is the percutaneous technique described in 1953 by Sven Ivar Seldinger. In this procedure a local anesthesia is administered and a skin puncture made at a small angle to the vessel (e.g. femoral in the leg or brachial in the arm) with an obturator positioned within a cannula. Once the unit has been properly located in the vessel, the obturator is removed and the flexible spring guide then inserted through the cannula into the vessel for a short distance. Pressure is then applied to hold the spring guide in place while the cannula is withdrawn. The spring guide is then fed into the vessel, generally under observation by means of fluoroscope, until the desired point is reached which may require considerable manipulation if there are branched vessels or curves concerned. Thereafter the catheter is passed over the flexible spring guide and fed into the desired position and the spring guide then withdrawn from the catheter unless both are needed for cooperative manipulation purposes.

There has also been a frequent need to place elongated tubes through the nose into at least the duodenum and even further down the intestinal tract. It is fairly easy to reach the stomach but becomes difficult to pass through the pylorus because of the curvature into the duodenum. Once in the duodenum, decompression, introduction of contrast media, washing, sampling, biopsy, etc. becomes much simpler. Heretofore, flexible plastic or rubber tubes with a weighted distal end were utilized to reach the duodenum but the procedure sometimes takes several hours and sometimes cannot be accomplished at all.

There are presently available spring guides for vascular work made from stainless steel of H and 125 cm. lengths, each having outside diameter sizes of 0.025 (pediatric), 0.035 and 0.045 inch which are used with correspondingly shorter catheters. The guides consist of an outer case which is a closely wound stainless steel spring to form a continuous coil surrounding an inner bore which is then sealed at the distal end with a rounded tip or cap. A straight inner wire is placed within the coil bore and is either freely movable within the guide or fixed within the guide about 3 cm. short of the distal tip which is left flexible for manipulation purposes.

The spring guides are quite flexible but there is no lateral control over the distal end from the proximal end after insertion into a vessel. Thus to pass sharp curves or to go into branch vessels the surgeon must make all kinds of turning and push-pull manipulations, with the hope that by chance the distal end will finally lead into the branch vessel or around the curve as desired. Some catheters have soft curved ends which are maintained in a straight position as the catheter is fed through the vessel over the spring guide, when the catheter tip passes beyond the end of the spring guide it recovers its normal curved form and can be used to enter branch vessels, etc. This, however, has not been entirely satisfactory and presents several problems, one of which is that the surgeon must be manipulating both the spring guide and the catheter to secure desired results. Secondly, once the spring guide is removed from the catheter tip the tip has a set curve which cannot be changed nor straightened without insertion of the guide, and perhaps most importantly, the curve is in one direction only so that rotation of elongated catheters from the proximal end is necessary.

Therefore, it is an object of this invention to provide a spring guide, the straight distal end of which can be manipulated from the proximal end that is outside the patient to make it useful for intestinal studies and more useful for vascular studies.

It is a further object of this invention to have a spring guide which has a spinelike tip at the distal end which may be manipulated in are or curved condition by means of wires that lead through the bore of the spring guide to the distal end where the spinelike tip is positioned.

lt is also an object of this invention to provide a spring guide that can be curved in any direction from outside the patient while it is being fed through vessels or may be curved after the catheter is placed thereover and thus cause the catheter to curve.

I have found that a conventional spring guide may be used to carry a single or preferably a series of fine wires from the proximal end to the distal end, which wires then pass from the guide bore through the walls of a series of pivotal links that extend beyond the coil tip, to be anchored in the most distal link. With this arrangement, if one wire is pulled at the proximal end, it will cause curving of the pivotal links at the distal end.

With the above and other objects and features in view, the nature of which will be more apparent, the invention will be more fully understood by reference to the drawings, the accompanying detailed description and the appended claims.

In the drawings:

FIG. 1 is a longitudinal cross section taken through a spring guide constructed in accordance with this invention with the tip in straight position;

FIG. 2 is a perspective view of the tip when in a curved condition;

FIG. 3 is a transverse section taken along line 3-3 of FIG. 1; and

FIG. 4 is a transverse cross section taken along line 4-4 of FIG. 1.

This invention as illustrated shows a spring guide having a curvable tip controlled through a series of three double wires or six single wires, the number of which could obviously be anything from one single wire to as many as could be carried within the bore of the spring guide coils.

A conventional spring guide 5 is shown in FIG. 1 made up of continuous contiguous coils 6 which in this instance have the distal coils 7 machined slightly for close fitting of the tip shown generally at 8 that includes a proximal link 9, a distal link 10 and a plurality of intermediate links ll. Securely fixed to the distal link 10 is a rounded cap 12 which prevents entry of blood into the unit and also serves as a blunt leading edge that will not pierce or irritate the vessels when being fed into position.

A series of fine wires 13 (preferably 0.002 inch diameter with a range of 0.001 to 0.004 inch) pass through the inner bore 14 of the spring guide coil portion extending freely out the proximal end for manipulation manually or by handles developed for that purpose.

At the distal end of the coils it will be noted that proximal link 9 is provided with a recess 15 which fits over the distal coil 7 and is secured thereto by welding or other means. Each link proximal to distal link 10 is provided with a spherical extension 16 on the distal end thereof which serves as a pivot bearing for the link distal thereto and rests within the cavity 17 provided in the proximal end of each link distal to proximal link 9. Each intermediate link 11 is provided with a series of radially spaced tunnels 18 that extend longitudinally through the body thereof parallel to the longitudinal axis. The proximal link 9 is provided with a corresponding set of tunnels l9,

except that these are at an angle in order to extend from recess to the distal end where they must meet tunnel 18 of the first intermediate link. Distal link 10 has also been provided with a recess at its distal end and associated tunnels 21 which are parallel to the outer surface and extend from the proximal end into the recess 20. Each wire strand l3 emerges from distal coils 7 and passes into an associated tunnel 19 within the proximal link 9 and then into a series of tunnels 18 in the intermediate links 11 and then into an associated tunnel 21 in the distal link 10. On emerging from tunnel 21 the wire is immediately reversed as shown best in FIG. 3 and goes into another of the tunnels 18, then back through proximal tunnels 19 and finally back into the bore of the coil portions and then extends to and beyond the proximal end of the coil portion.

It will be appreciated that there is no attachment or securing of the various links to one another, except through the wires 13 which thus permits each one to pivot relative to the contiguous links. However, it is necessary that the cap be secured to the distal link 10 and preferable that the proximal link 9 be secured to the distal coil 7.

With this construction, by applying tension to one of the strands 13 at the proximal end of the spring guide or to several of the wires as long as they are on the same side of the tip, one may bend the tip through as much as l80 with little difficulty, depending somewhat of course on how many intermediate links 11 are provided. For example, with 16 intermediate links covering about three-fourths inch, one can easily curve the tip through 180 with a radius of three-sixteenths inch.

Although more sensitive controls are possible with the six wires as shown (i.e. three wires each reversed as shown in FIG. 3 which also secures the distal link 10 and other links to the coils, it is possible, of course, to have any number of wires which may run only to the distal tip without being brought back, but which then would have to be secured to the distal link. If there are two or more wires, when increased tension is applied to one or more, the opposed wire or wires (as seen in a cross section such as FIG. 4) must be released since the 0pposed wires must become longer (see bottom wire 13 of FIG. 2) while the pulled wires become shorter (see top wire 13 of FIG. 2). Thus two wires radially spaced 180 would provide curvature in opposite directions but only one plane, whereas three or more wires increase the third-dimensional aspect of the curvature.

The sizes, of course, must all be in relation to that conventionally used for spring guides which are restricted, particularly when being used in blood vessels. Stainless steel has conventionally been the choice for spring guide coils and the wires that run through the bores thereof and l have respected those choices as my preference in this instance. It has been found, however, that the links are easier formed from brass, but in any event, materials do not constitute a particular feature of this invention as long as the particular material can be machined into the shape shown and is compatible with the human tissues.

It will be obvious, of course, that there are various ways of utilizing this item in practice. The spring guide per se may be manipulated to run the end into branch arteries or around curves in the various vessels. In addition, the spring guide may be put in straight and then covered by the catheter and then the tip curved with the catheter thereon, which will of course also curve the catheter, so that the manipulation is done with the combined spring guide and catheter. If it is desired to pass two curves or branches with one operation, the spring guide alone can, of course, be passed around a first branch or curve and the tip straightened, as the curve will now be held by the blood vessel itself and the tip will then be ready for further manipulation through the control wires to move into a second branch. Once again, this may be done with the spring guide alone or in conjunction with the catheter covering same.

Various changes, modifications and ramifications will of course be obvious to those skilled in the art and are considered to be within the scope of the appended claims hereto.


1. A tubular spring guide having a curvable tip comprising a plurality of solid cylindrical links positioned along the longitudinal axis of said tip, successive links being adjacent and centrally pivotally engaging each other, a plurality of tunnels extending longitudinally and off center through each said link, a continuous wire extending freely through each said tunnel and secured to the most distally located of said links, the most proximally located of said links being adjacent the distal end of said spring guide, and each said wire extending through and to the proximal end of said spring guide whereby said tip can be controllably curved by selective tensioning of said wires.

2. The spring guide of claim 1 wherein said most proximally located link is provided with a recess that fits over and is secured to said distal end of said guide.

3. A spring guide according to claim 1 in which the tunnels through the most proximally located link lie at acute angles from the axis of said link, the distal end of each said angled tunnel being disposed opposite the proximal end of a tunnel through an adjacent link, and the proximal end of each said angled tunnel being closer to the axis and communicating with the bore of the tubular spring guide.

4. A spring guide according to claim I in which an individual control wire extending freely distally through an aligned set of tunnels is turned in the most distally located link to return proximally through another aligned set of tunnels.

5. The spring guide of claim 4 wherein said links are each provided with six tunnels and there are three continuous control wires having six free ends available at said proximal spring guide end.

6. The spring guide of claim 4 wherein said distal link is provided with a blunt rounded cap secured beyond said tunnels and wires.

7. The spring guide of claim 4 wherein said distal link has a recess at its distal end within which said distal link tunnels terminate and said wires turn laterally to reverse their directions.

8. In a spring guide formed from a continuously coiled wire, the improvement including a curvable tip positioned adjacent and longitudinally beyond the distal end of said guide, and a plurality of control wires extending from said tip through the bore and beyond the proximal end of said spring guide, said tip comprising a plurality of longitudinally positioned solid cylindrical links, successive links being adjacent and centrally pivotally engaging each other, a plurality of tunnels extending longitudinally and off center through each said link, the tunnels in each link being in alignment with the tunnels in each adjacent link, said control wires extending freely through each said tunnel and each being secured to the most distal of said links whereby said tip can be controllably curved from said proximal end of said spring guide by selective tensioning of said wires.

9. The spring guide of claim 8 wherein said pivotal engagement means are ball-and-socket elements at the joining surfaces of said adjacent link pairs.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1733239 *Jan 31, 1929Oct 29, 1929Roberts Donald EApplicator for conducting ultra-violet rays
US2975785 *Sep 26, 1957Mar 21, 1961Bausch & LombOptical viewing instrument
US3060972 *Aug 22, 1957Oct 30, 1962Bausch & LombFlexible tube structures
US3071161 *May 16, 1960Jan 1, 1963Bausch & LombBidirectionally flexible segmented tube
US3190286 *Oct 31, 1961Jun 22, 1965Bausch & LombFlexible viewing probe for endoscopic use
US3266059 *Jun 19, 1963Aug 16, 1966North American Aviation IncPrestressed flexible joint for mechanical arms and the like
US3270641 *Jul 1, 1963Sep 6, 1966Iota Cam CorpRemote inspection device and threaded member used therein
US3452740 *May 31, 1966Jul 1, 1969Us Catheter & Instr CorpSpring guide manipulator
US3452742 *Jun 29, 1966Jul 1, 1969Us Catheter & Instr CorpControlled vascular curvable spring guide
US3470876 *Sep 28, 1966Oct 7, 1969John BarchilonDirigible catheter
US3521620 *Oct 30, 1967Jul 28, 1970Cook William AVascular coil spring guide with bendable tip
Non-Patent Citations
1 *Smith, G. A. et al., Surgery, Vol. 27, No. 6, June, 1950, pp. 817 821, (copy in 128/348)
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4134405 *Jan 10, 1977Jan 16, 1979Smit Julie ACatheter and intestine tube and method of using the same
US4215703 *Aug 29, 1978Aug 5, 1980Willson James K VVariable stiffness guide wire
US4454888 *Oct 7, 1981Jun 19, 1984Cordis CorporationCardiac pacing lead with curve retainer
US4545081 *Mar 12, 1984Oct 8, 1985Jack NestorSemi-rigid penile prosthesis with separable members and posture control
US4615472 *Jun 19, 1985Oct 7, 1986Intravascular Surgical Instruments, Inc.Catheter placement device
US4643194 *Jan 15, 1982Feb 17, 1987Thomas J. FogartyFlexible calibrator
US4723936 *Jul 22, 1986Feb 9, 1988Versaflex Delivery Systems Inc.Steerable catheter
US4757827 *Feb 17, 1987Jul 19, 1988Versaflex Delivery Systems Inc.Steerable guidewire with deflectable tip
US4813434 *Mar 31, 1988Mar 21, 1989Medtronic Versaflex, Inc.Steerable guidewire with deflectable tip
US4815478 *Mar 31, 1988Mar 28, 1989Medtronic Versaflex, Inc.Steerable guidewire with deflectable tip
US4841976 *Dec 17, 1987Jun 27, 1989Schneider-Shiley (Usa) Inc.Steerable catheter guide
US4886067 *Jan 3, 1989Dec 12, 1989C. R. Bard, Inc.Steerable guidewire with soft adjustable tip
US4944740 *Aug 18, 1988Jul 31, 1990Medtronic Versaflex, Inc.Outer exchange catheter system
US4955384 *May 11, 1989Sep 11, 1990Advanced Cardiovascular Systems, Inc.Guiding member for vascular catheters with a flexible link distal section
US4984581 *Oct 12, 1988Jan 15, 1991Flexmedics CorporationFlexible guide having two-way shape memory alloy
US5042475 *Mar 8, 1990Aug 27, 1991Portex, Inc.Hinged tracheostomy tube obturator
US5059176 *Dec 21, 1989Oct 22, 1991Winters R EdwardVascular system steerable guidewire with inflatable balloon
US5065703 *Jan 27, 1989Nov 19, 1991Electric Power Research Institute, Inc.Flexible lance for steam generator secondary side sludge removal
US5067489 *Oct 26, 1990Nov 26, 1991Flexmedics CorporationFlexible guide with safety tip
US5108368 *Sep 17, 1990Apr 28, 1992Pilot Cardiovascular System, Inc.Steerable medical device
US5125895 *Dec 19, 1988Jun 30, 1992Medtronic Versaflex, Inc.Steerable catheter
US5190050 *Nov 8, 1991Mar 2, 1993Electro-Catheter CorporationTip deflectable steerable catheter
US5195968 *Jul 17, 1992Mar 23, 1993Ingemar LundquistCatheter steering mechanism
US5203772 *Apr 8, 1992Apr 20, 1993Pilot Cardiovascular Systems, Inc.Steerable medical device
US5207229 *Oct 1, 1990May 4, 1993Advanced Biomedical Devices, Inc.Flexibility steerable guidewire with inflatable balloon
US5254088 *Dec 16, 1992Oct 19, 1993Ep Technologies, Inc.Catheter steering mechanism
US5318525 *Apr 10, 1992Jun 7, 1994Medtronic CardiorhythmSteerable electrode catheter
US5336182 *Jul 30, 1993Aug 9, 1994Ep Technologies, Inc.Catheter steering mechanism
US5383852 *Dec 4, 1992Jan 24, 1995C. R. Bard, Inc.Catheter with independent proximal and distal control
US5386828 *Aug 17, 1993Feb 7, 1995Sims Deltec, Inc.Guide wire apparatus with location sensing member
US5395327 *Jul 30, 1993Mar 7, 1995Ep Technologies, Inc.Catheter steering mechanism
US5397304 *Jun 29, 1993Mar 14, 1995Medtronic CardiorhythmShapable handle for steerable electrode catheter
US5465716 *Nov 22, 1993Nov 14, 1995Avitall; BoazCatheter control handle
US5489270 *Jun 10, 1994Feb 6, 1996Cordis CorporationControlled flexible catheter
US5531686 *Dec 23, 1994Jul 2, 1996Ep Technologies, Inc.Catheter steering mechanism
US5562619 *Oct 19, 1993Oct 8, 1996Boston Scientific CorporationDeflectable catheter
US5571085 *Mar 24, 1995Nov 5, 1996Electro-Catheter CorporationSteerable open lumen catheter
US5624397 *Sep 19, 1994Apr 29, 1997Snoke; Phillip J.Catheter having a multiple durometer
US5645065 *Apr 11, 1995Jul 8, 1997Navion Biomedical CorporationCatheter depth, position and orientation location system
US5673707 *Sep 23, 1994Oct 7, 1997Boston Scientific CorporationEnhanced performance guidewire
US5771902 *Sep 25, 1995Jun 30, 1998Regents Of The University Of CaliforniaMicromachined actuators/sensors for intratubular positioning/steering
US5810790 *Nov 19, 1996Sep 22, 1998Ebling; Wendell V.Catheter with viewing system and port connector
US5827278 *May 20, 1997Oct 27, 1998Cordis Webster, Inc.Deflectable tip electrode catheter with nylon stiffener and compression coil
US5846221 *May 13, 1998Dec 8, 1998Catheter Imaging Systems, Inc.Steerable catheter having disposable module and sterilizable handle and method of connecting same
US5857996 *Oct 22, 1997Jan 12, 1999Catheter Imaging SystemsMethod of epidermal surgery
US5860953 *Feb 9, 1996Jan 19, 1999Catheter Imaging Systems, Inc.Steerable catheter having disposable module and sterilizable handle and method of connecting same
US5865800 *Oct 8, 1996Feb 2, 1999Boston Scientific CorporationDeflectable catheter
US6007531 *Jan 5, 1999Dec 28, 1999Catheter Imaging Systems, Inc.Steerable catheter having disposable module and sterilizable handle and method of connecting same
US6010493 *Apr 27, 1998Jan 4, 2000Catheter Imaging SystemsMethod of epidural surgery
US6017322 *Jan 5, 1999Jan 25, 2000Catheter Imaging Systems, Inc.Steerable catheter having disposable module and sterilizable handle and method of connecting same
US6033378 *Mar 27, 1997Mar 7, 2000Ep Technologies, Inc.Catheter steering mechanism
US6066125 *Nov 10, 1998May 23, 2000Cordis Webster, Inc.Omni-directional steerable catheter
US6123699 *Sep 5, 1997Sep 26, 2000Cordis Webster, Inc.Omni-directional steerable catheter
US6165139 *Jun 1, 1995Dec 26, 2000Fonar CorporationRemotely steerable guide wire with external control wires
US6171277Aug 7, 1998Jan 9, 2001Cordis Webster, Inc.Bi-directional control handle for steerable catheter
US6183463Aug 28, 1998Feb 6, 2001Cordis Webster, Inc.Bidirectional steerable cathether with bidirectional control handle
US6198974Sep 18, 1998Mar 6, 2001Cordis Webster, Inc.Bi-directional steerable catheter
US6210407Dec 3, 1998Apr 3, 2001Cordis Webster, Inc.Bi-directional electrode catheter
US6327492 *Apr 3, 2000Dec 4, 2001Jerome LemelsonSystem and method for treating select tissue in a living being
US6394976 *Jan 31, 2000May 28, 2002Intraluminal Therapeutics, Inc.Catheter for controlling the advancement of a guide wire
US6428489Dec 22, 1999Aug 6, 2002Precision Vascular Systems, Inc.Guidewire system
US6464682Jan 3, 2000Oct 15, 2002Catheter Imaging Systems, Inc.Method of epidural surgery
US6470209Jul 13, 1999Oct 22, 2002Catheter Imaging Systems, Inc.System for enhancing visibility in the epidural space
US6500167Nov 8, 1999Dec 31, 2002Biosense Webster, Inc.Omni-directional steerable catheter
US6571131Nov 10, 2000May 27, 2003Biosense Webster, Inc.Deflectable catheter with modifiable handle
US6579246Dec 22, 2000Jun 17, 2003Sarcos, LcCoronary guidewire system
US6585717Jun 15, 2000Jul 1, 2003Cryocath Technologies Inc.Deflection structure
US6716183 *Sep 5, 2001Apr 6, 2004Applied Medical Resources CorporationGuidewire
US6743239May 25, 2000Jun 1, 2004St. Jude Medical, Inc.Devices with a bendable tip for medical procedures
US6925323Aug 12, 2002Aug 2, 2005Phillip Jack SnokeSystem for enhancing visibility in the epidural space
US7001369Mar 27, 2003Feb 21, 2006Scimed Life Systems, Inc.Medical device
US7169118Feb 26, 2003Jan 30, 2007Scimed Life Systems, Inc.Elongate medical device with distal cap
US7540865Jul 13, 2005Jun 2, 2009Boston Scientific Scimed, Inc.Medical device
US7632242Dec 9, 2004Dec 15, 2009Boston Scientific Scimed, Inc.Catheter including a compliant balloon
US7794407Oct 23, 2006Sep 14, 2010Bard Access Systems, Inc.Method of locating the tip of a central venous catheter
US7811291Oct 30, 2008Oct 12, 2010Osseon Therapeutics, Inc.Closed vertebroplasty bone cement injection system
US7824345Dec 22, 2003Nov 2, 2010Boston Scientific Scimed, Inc.Medical device with push force limiter
US7841994Nov 2, 2007Nov 30, 2010Boston Scientific Scimed, Inc.Medical device for crossing an occlusion in a vessel
US7842041Oct 30, 2008Nov 30, 2010Osseon Therapeutics, Inc.Steerable vertebroplasty system
US7850623Oct 27, 2005Dec 14, 2010Boston Scientific Scimed, Inc.Elongate medical device with continuous reinforcement member
US7878984Jul 25, 2003Feb 1, 2011Boston Scientific Scimed, Inc.Medical device for navigation through anatomy and method of making same
US7914466Aug 5, 2003Mar 29, 2011Precision Vascular Systems, Inc.Medical device with collapse-resistant liner and method of making same
US7914467Aug 8, 2007Mar 29, 2011Boston Scientific Scimed, Inc.Tubular member having tapered transition for use in a medical device
US7976518Jan 13, 2005Jul 12, 2011Corpak Medsystems, Inc.Tubing assembly and signal generator placement control device and method for use with catheter guidance systems
US8021329Dec 7, 2009Sep 20, 2011Boston Scientific Scimed, Inc.,Catheter including a compliant balloon
US8022331Jan 15, 2007Sep 20, 2011Boston Scientific Scimed, Inc.Method of making elongated medical devices
US8048004Jul 31, 2007Nov 1, 2011Precision Vascular Systems, Inc.Medical device for navigation through anatomy and method of making same
US8048060Aug 16, 2006Nov 1, 2011Boston Scientific Scimed, Inc.Medical device
US8105246Aug 3, 2007Jan 31, 2012Boston Scientific Scimed, Inc.Elongate medical device having enhanced torque and methods thereof
US8137293Nov 17, 2009Mar 20, 2012Boston Scientific Scimed, Inc.Guidewires including a porous nickel-titanium alloy
US8182465May 21, 2009May 22, 2012Boston Scientific Scimed, Inc.Medical device
US8197494Sep 8, 2006Jun 12, 2012Corpak Medsystems, Inc.Medical device position guidance system with wireless connectivity between a noninvasive device and an invasive device
US8231551Dec 13, 2010Jul 31, 2012Boston Scientific Scimed, Inc.Elongate medical device with continuous reinforcement member
US8246575Feb 17, 2009Aug 21, 2012Tyco Healthcare Group LpFlexible hollow spine with locking feature and manipulation structure
US8257279Jul 31, 2007Sep 4, 2012Boston Scientific Scimed, Inc.Medical device for navigation through anatomy and method of making same
US8353898Nov 28, 2011Jan 15, 2013Aesculap AgSurgical instrument
US8376961Apr 7, 2008Feb 19, 2013Boston Scientific Scimed, Inc.Micromachined composite guidewire structure with anisotropic bending properties
US8377035Jan 17, 2003Feb 19, 2013Boston Scientific Scimed, Inc.Unbalanced reinforcement members for medical device
US8382742Nov 28, 2011Feb 26, 2013Aesculap AgSurgical instrument
US8388541Nov 25, 2008Mar 5, 2013C. R. Bard, Inc.Integrated system for intravascular placement of a catheter
US8388546Apr 21, 2009Mar 5, 2013Bard Access Systems, Inc.Method of locating the tip of a central venous catheter
US8409114Aug 2, 2007Apr 2, 2013Boston Scientific Scimed, Inc.Composite elongate medical device including distal tubular member
US8437833Oct 7, 2009May 7, 2013Bard Access Systems, Inc.Percutaneous magnetic gastrostomy
US8449526Dec 6, 2007May 28, 2013Boston Scientific Scimed, Inc.Torqueable soft tip medical device and method of usage
US8478382Feb 11, 2009Jul 2, 2013C. R. Bard, Inc.Systems and methods for positioning a catheter
US8496630Apr 29, 2005Jul 30, 2013Olympus CorporationTransendoscopic medical instrument
US8512256Sep 9, 2010Aug 20, 2013Bard Access Systems, Inc.Method of locating the tip of a central venous catheter
US8535243Sep 10, 2008Sep 17, 2013Boston Scientific Scimed, Inc.Medical devices and tapered tubular members for use in medical devices
US8540668Sep 15, 2011Sep 24, 2013Boston Scientific Scimed, Inc.Catheter including a compliant balloon
US8551020Sep 13, 2007Oct 8, 2013Boston Scientific Scimed, Inc.Crossing guidewire
US8551021Mar 31, 2011Oct 8, 2013Boston Scientific Scimed, Inc.Guidewire with an improved flexural rigidity profile
US8556914Dec 15, 2006Oct 15, 2013Boston Scientific Scimed, Inc.Medical device including structure for crossing an occlusion in a vessel
US8636716May 22, 2012Jan 28, 2014Boston Scientific Scimed, Inc.Medical device
US8753360Nov 8, 2010Jun 17, 2014Covidien LpExpandable mesh system and method of use therefor
US8774907Jan 9, 2013Jul 8, 2014Bard Access Systems, Inc.Method of locating the tip of a central venous catheter
US8781555Mar 2, 2010Jul 15, 2014C. R. Bard, Inc.System for placement of a catheter including a signal-generating stylet
US8784336Aug 23, 2006Jul 22, 2014C. R. Bard, Inc.Stylet apparatuses and methods of manufacture
US8784337Oct 8, 2013Jul 22, 2014Boston Scientific Scimed, Inc.Catheter with an improved flexural rigidity profile
US8795202Feb 3, 2012Aug 5, 2014Boston Scientific Scimed, Inc.Guidewires and methods for making and using the same
US8795254Dec 10, 2009Aug 5, 2014Boston Scientific Scimed, Inc.Medical devices with a slotted tubular member having improved stress distribution
US8801693Oct 27, 2011Aug 12, 2014C. R. Bard, Inc.Bioimpedance-assisted placement of a medical device
US8821477Aug 6, 2007Sep 2, 2014Boston Scientific Scimed, Inc.Alternative micromachined structures
US8827981Apr 20, 2012Sep 9, 2014Osseon LlcSteerable vertebroplasty system with cavity creation element
US20080243064 *Feb 15, 2008Oct 2, 2008Hansen Medical, Inc.Support structure for robotic medical instrument
EP0165718A2 *May 21, 1985Dec 27, 1985Pilkington Medical Systems Limited (formely Minvade Limited)Endoscopes
EP0254701A1Jul 20, 1987Jan 27, 1988Medtronic Versaflex, Inc.Steerable catheter
EP0397054A2 *May 4, 1990Nov 14, 1990Advanced Cardiovascular Systems, Inc.Guiding member for vascular catheters with a flexible link distal section
EP0628323A1 *Jun 6, 1994Dec 14, 1994Cordis Europa N.V.Controllably bendable catheter
EP0741546A1 *Jan 17, 1995Nov 13, 1996Implemed, Inc.Cryogenic mapping and ablation catheter
EP1588670A1 *Nov 7, 2003Oct 26, 2005Olympus CorporationMedical appliance through endoscope
WO1991011213A1 *Jan 31, 1991Aug 8, 1991Ep TechnologiesCatheter steering mechanism
WO1992004933A1 *Sep 17, 1991Apr 2, 1992Pilot Cardiovascular Syst IncSteerable medical device
WO1994009843A1 *Apr 6, 1993May 11, 1994Catheter Imaging SystemsCatheter having a multiple durometer
WO2001003766A1 *Jul 6, 2000Jan 18, 2001Bard Inc C RSteerable catheter
WO2004075965A1 *Feb 24, 2004Sep 10, 2004Scimed Life Systems IncIntracorporal medical device having an articulating section
U.S. Classification600/585, 604/95.4
International ClassificationA61B10/04, A61B10/00, A61B10/02, A61B1/005, A61B17/28, A61B17/00
Cooperative ClassificationA61B10/04, A61M25/09033, A61M2025/09175, A61B1/0055, A61B2017/003, A61B2017/2905
European ClassificationA61B1/005B6, A61B10/04, A61M25/09B2