WO2011069505A1 - Dispositif intra-vasculaire avec section radialement expansible - Google Patents

Dispositif intra-vasculaire avec section radialement expansible Download PDF

Info

Publication number
WO2011069505A1
WO2011069505A1 PCT/DK2010/000167 DK2010000167W WO2011069505A1 WO 2011069505 A1 WO2011069505 A1 WO 2011069505A1 DK 2010000167 W DK2010000167 W DK 2010000167W WO 2011069505 A1 WO2011069505 A1 WO 2011069505A1
Authority
WO
WIPO (PCT)
Prior art keywords
section
introducer
outer member
expandable section
distal
Prior art date
Application number
PCT/DK2010/000167
Other languages
English (en)
Inventor
Hans Jørgen PEDERSEN
Original Assignee
Fowsion Aps
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 Fowsion Aps filed Critical Fowsion Aps
Publication of WO2011069505A1 publication Critical patent/WO2011069505A1/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
    • A61M25/0009—Making of catheters or other medical or surgical tubes
    • A61M25/0015—Making lateral openings in a catheter tube, e.g. holes, slits, ports, piercings of guidewire ports; Methods for processing the holes, e.g. smoothing the edges
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14503—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14525—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using microdialysis
    • A61B5/14528—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using microdialysis invasively
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
    • A61B5/6852—Catheters
    • A61B5/6858—Catheters with a distal basket, e.g. expandable basket
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
    • A61B5/686—Permanently implanted devices, e.g. pacemakers, other stimulators, biochips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6886—Monitoring or controlling distance between sensor and tissue
    • 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
    • A61M25/02—Holding devices, e.g. on the body
    • A61M25/04—Holding devices, e.g. on the body in the body, e.g. expansible
    • 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
    • A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M2025/0024—Expandable catheters or sheaths
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M2025/0175—Introducing, guiding, advancing, emplacing or holding catheters having telescopic features, interengaging nestable members movable in relations to one another
    • 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
    • A61M25/0009—Making of catheters or other medical or surgical tubes
    • A61M25/001—Forming the tip of a catheter, e.g. bevelling process, join or taper

Definitions

  • Intravascular device with radially expandable section Intravascular device with radially expandable section
  • the present invention relates to a device to be inserted into a cavity, a hollow organ or the like of an living being such as a human being or more generally in an animal, where the device comprises a functional part that is preferably not to get in contact with the internal walls of the cavity or hollow organ.
  • the device comprises a part having a radially expanding section to surround the functional part and possibly to contact the walls forming some fixation of the device inside the cavity or the hollow organ.
  • the expandable section in the preferred embodiment is formed by a shape memory material, a spring material etc.
  • the concentration of, for example, an analyte in the intravascular tissue is different from that in the vasculature media, such as the moving blood stream.
  • the concentration of, for example, an analyte in the intravascular tissue is different from that in the vasculature media, such as the moving blood stream.
  • a number of documents relates to methods and devices solving similar problems, such as US 5,769,821 , disclosing a catheter tip retainer for retaining a catheter tip in a fixed position within a blood flow and preventing it from contacting a blood vessel wall.
  • the apparatus includes a tip retainer at the distal end of the catheter that stabilizes the tip of the catheter relative to the blood vessel.
  • the catheter tip is retained within the blood vessel spaced from the wall to ensure that it does not contact the wall of the blood vessel. This reduces damage to the blood vessel caused by chronic movement and contact between the catheter tip and the wall of the blood vessel.
  • the tip retainer includes a prong that penetrates the wall of the blood vessel, thus preventing the catheter tip from moving longitudinally within the blood vessel. In alternative embodiments, the tip retainer contacts the wall but does not penetrate it.
  • the tip retainer is two or more loops of wire that flex outward and contact the wall.
  • the tip retainer includes fletchings to anchor the catheter tip in the blood vessel.
  • the tip retainer is a plurality of single straight wires that are prestressed to flex outward or straight wires with loops on the end.
  • a plurality of members run from the proximal end of the catheter to the distal end where they extend radially outward until they contact the wall of the blood vessel.
  • the catheter includes withdrawal means for withdrawing the positioning means into the catheter such that the positioning means is prevented from damaging the wall of the blood vessel when the catheter is withdrawn from the blood vessel.
  • the withdrawal means includes guideways running from the proximal end of the catheter to the distal end of the catheter. The positioning means extends from the proximal end to the distal end of the catheter within the guideway.
  • anchoring wire element formed in a configuration such that it radially expands to mechanically engage the side walls of a blood vessel.
  • the anchoring wire is formed in a multi-turn helical or "pigtail" configuration such that it is in continuous contact with the vessel side walls and defines a clear flow area through the centre of the vessel for blood flow.
  • Such a shape can easily be generated by wrapping guide wire stock around a cylindrical mandrel along a helical path.
  • anchoring wire defines a diameter slightly larger than the inside diameter of the blood vessel, such that when deployed in the blood vessel, an expansion force is exerted against the blood vessel wall for anchoring purposes.
  • the system comprises an introducer catheter with a lumen being sufficiently large to enable the infusion catheter and the anchoring wire to be inserted through it. Due to the stiffness of the introducer catheter, as the anchoring wire is pulled to retract within the lumen, it assumes a nearly straightened or
  • a guiding catheter substantially consisting of a hollow tube (lumen) of flexible torsion-stiff material, onto an end of which connects a tubular extension of flexible material, which is curved according to predetermined varying radii of curvature, and the free end portion of which is provided with a softer material than the flexible material, wherein the end portion of softer material is provided with at least three radially protruding elements, preferably having an arc-like outer curvature seen in the tangential direction.
  • Balloon catheters are also well described in the art, such as for example EP 0 750 919 disclosing an intravascular dwelling balloon catheter for arterial perfusion, having a basic body formed as a whole into a flexible form, having a prespecified length, and made of a material such as polyvinylchloride resin, polyurethane resin, or silicon rubber.
  • a tip section of the basic body of the catheter is a small diameter section, and a balloon made of silicon rubber is attached to the small diameter section.
  • the balloon closely embraces the small diameter section before it is expanded, and the diameter when so embracing the small diameter section is substantially the same as that of the body section other than the small diameter section.
  • the system comprises ribs provided on an external surface of the balloon.
  • the ribs are formed by providing projecting strips or the like crossing each other as shown in Figs. 4 and 5. Such ribs are provided in a mesh-like form over the entire surface of the balloon, but so that none of the ribs crosses the centre line E of the basic body of the catheter.
  • the ribs may comprise a first portion in which a plurality of ribs is provided at a predetermined spacing from each other and each inclined at a predetermined first acute angle in the distal direction relative to the centre line E of the basic body of the catheter, and a second section in which a plurality of ribs is provided at a predetermined spacing from each other and each inclined at an obtuse second angle in the direction opposite to the distal direction relative to the centre line E.
  • the present invention in the same manner as disclosed in some of the above cited documents, relates to a device to be inserted into a cavity, a hollow organ or the like of an animal body, where the device comprises a functional part that is preferably not to get in contact with the internal walls of the cavity or hollow organ.
  • a functional part that is preferably not to get in contact with the internal walls of the cavity or hollow organ.
  • a number of such systems exist having such functional parts, such as in general chemical or biochemical probes, optic probes where the device could comprise fibre optics, electrochemical probes etc.
  • the object of the present invention especially relates to such a device being formed in a simple manner to reduce manufacturing costs, but also to a device formed in a manner to minimize the risk of small parts of the device breaking off with the risk to make damage within the living creature (such as a human being or more generally an animal).
  • Another advantage is to shield the functional part, such as a micro-dialysis membrane, from being damaged during introduction and operation, to affect its functionality.
  • the object is obtained by introducing a device to be used in combination with an introducer, where the device comprises an outer member and an inner member, the inner member being positioned in the inner lumen of the outer member, and wherein the device distally further comprises an expandable section able to expand in the radial direction.
  • This radially expandable section helps keeping a certain distance from a section of the inner member being in the inner volume of the expandable section to the walls of, for example, a body cavity or a hollow organ, such as the intravascular walls.
  • the expandable section may further help fixing the device.
  • the inner and outer members are tubular shaped, but are not limited to any particular shape, the important thing being the functionality of the members, where especially the outer member needs an inner hollow that is able to contain at least a part of the inner member.
  • the introducer in the preferred embodiment is tubular shaped, but may have any shape being able to contact the outer member, or at least the necessary sections of the outer member, through a skin.
  • the expandable section is formed by a plurality of rib elements having their proximal ends fixed to the distal end of the main outer tube and being mutually connected at their distal ends.
  • the outer member and the rib elements are formed in a single body.
  • the number of construction parts of the device is reduced to give an easier manufacturing process, but also to minimize the risk of parts breaking off when the device is inserted with the risk to make damage within the living creature (such as a human being or more generally an animal).
  • Another advantage is to shield the functional part, such as a micro-dialysis membrane, from being damaged during introduction and operation, to affects its
  • the distal ends of the rib elements form an outer distal tube that has a distal opening being plugged in any manner known in the art, to ensure that the edges of the tube do no harm to the walls, such as the intravascular walls.
  • the expandable section in its expanded state has a diameter being substantially larger than the diameter of the outer member, and the inner diameter of the introducer tubular part is larger than the outer diameter of the outer member, but the expanded diameter of the expandable section is larger than the outer diameter of the introducer tubular part.
  • At least the rib elements are made of a shape memory material, but more preferred the whole of the outer member and the expandable section and optionally also the outer distal tube are formed by a shape memory material.
  • the material of the expandable section is then processed so that it will seek towards a radially expanded state when in a relaxed state.
  • the material may be made of a normal spring material, or of any other material and / or in any construction, as known in the art to ensure that such an expandable section will expand to an expanded state when unaffected by compressible forces, such as being inside a tube of a radial diameter less than the radial diameter of the expandable section in its expanded state.
  • Nitonol or any material used especially to form stents as it is well known in the art, but the material choice is not limited to such.
  • the proximal end of the introducer provided to be external to the skin is equipped with a second connector and the proximal end of outer member is fixed to a first connector, the first and second connectors being adapted to be fixed to one another, and the length of the outer member being such, that when the first and second connecters are fixed to one another, then the expandable section extends out of the distal opening of the introducer.
  • the inner member comprises a functional section, the functional section being positioned within the expandable section during operation of the system.
  • the inner member comprises at least one fluid conduit for delivering substances like drugs to the tissue.
  • the functional section is a semi-permeable section, and the inner member may comprise at least two fluid conduits, the functional section being a micro-dialysis probe as well known in the art, a perfusion fluid being transferred to the functional section through a first of the fluid conduits of the inner member, and away from the functional section through a second fluid conduit, enriched with analytes being 'collected' by the perfusion fluid as they diffuse across the semi-permeable section (optionally a semi-permeable membrane).
  • the rib elements may be formed as structured elements.
  • the rib elements comprise at least first sections running at a first angle and second sections running at a second angle relative to an axis parallel to the length direction of the extension of the expandable section, where the first and second sections may be curved.
  • the rib elements form a bifurcated and/or branched structure or network of rib elements with at least first sections running at a first angle and with sections running at a second angle relative to an axis parallel to the length direction of the extension of the expandable section.
  • the functional section e.g. a semi-permeable section, may comprise
  • supperters such as for example metal threads of Nitenol or other materials comprising a substantial stiffness, and adapted to reduce bending of the functional section. This especially would be an advantage where the materials of the functional section would sustain only little bending.
  • Fig. 1 shows the main problem to be solved by the present invention.
  • Fig. 2 shows an example of how to solve the main problem of the present invention.
  • Figs. 3A-D illustrate manufacturing methods of the outer member and rib elements of the present invention.
  • Fig. 3D shows a simplified front view of one embodiment of the outer tube.
  • Figs. 4A-C illustrate the present invention during insertion, during operation and during removal.
  • Fig. 5A and 5B illustrate alternative designs of the constructions of the rib elements.
  • Figs. 6A-C illustrate the outer member and the introducer equipped with connectors, and how the functional section of the inner member is positioned within the expandable section.
  • Fig. 1 is a simple illustration of a configuration where a device (1) is introduced into a vasculature (2) of a person through an introducer (or catheter) (4).
  • the illustrated device comprises a sensor section (3).
  • the present invention is not limited to devices comprising a sensor section (3) or even performing any sensing or analysing operation, or introduced into a vasculature. It applies to any system where a device (1) is to be introduced into a cavity or hollow organ of the body through an introducer, and where it is desirable ensuring that at least a part of the distal end of the device (1), or the functional part, is not in contact with the internal walls of the cavity or hollow organ.
  • the system comprising the device (1) and the sensor section (3) is a micro-dialysis probe as they are well known in the art, where the device (1) comprises a tubular system for transferring a perfusion fluid to the sensor section (3) being a section permeable to the species of interest, the analyte, in the surrounding media.
  • the perfusion collects' the analyte as it diffuses across the permeable section.
  • This enriched perfusion fluid would then comprise the analyte in a concentration that may be translated to the concentration in the surrounding media, and is then removed again from the sensor section (3) through the tubular section for further analysis.
  • the concentration of the analyte in the intravascular tissue may differ from the concentration of the analyte in the vasculature media, such as the moving blood stream. It is therefore preferred that the sensor section does not touch the vascular walls and thereby the intravascular tissue, since this would cause misleading concentration
  • FIG. 2 illustrates the basics of the present invention, where the device (1) with the sensor section (3) is introduced through the introducer (4) in one preferred embodiment used in the following as the example, comprising an introducer tubular part (5).
  • the device (1) comprises the inner member (6) (the tubular system for communicating the perfusion fluid, optic fibres, electrical wires etc.) comprising the sensor section (3).
  • the device (1) further comprises an outer member (7) where the inner member (6) extends within the outer member (7).
  • the device (1) distally further comprises an expandable section (8) able to expand in the radial direction.
  • the expandable section (8) ensures that the sensor section (3) is unable to contact the vascular walls and thereby get in contact with the intravascular tissue.
  • the sensor section (3) is situated within the inner volume of the expandable section (8) during operation.
  • the expandable section (8) is formed by a plural of rib elements (10) having their proximal ends fixed
  • the expandable section (8) is formed as an integral part of the outer member (7).
  • the expandable section (8) is formed by rib elements (10) being formed from the same single body as the outer member (7), as seen in Fig. 3C.
  • the ribs (10) are then advantageously formed by 'cutting' them in the single body in any known manner, such as by laser, electro polishing, ceramic or sand blasting, etc. This is illustrated in Figs. 3A, 3B and 3C, where a tube of some material (13) is provided and a number of 'cuts' (14a) around the circumference are made running in the longitudinal direction of the tube (13), Fig.
  • Fig. 3C also illustrates a further embodiment of the present invention, where a plug (20) is introduced to the distal outer member (16) ensuring a substantially 'smooth' surface of the distal end of the device (1) to ensure it does no damage to the internals of the vasculature, cavity, hollow organ etc.
  • the plug may be inserted and fixed to and / or in the distal outer member (16) in any manner as known in the art.
  • the end tip of the distal outer member (16) may be shaped, or reshaped, to a more 'rounded' shape (23) as illustrated in Fig. 3D, and optionally to close the opening of the distal outer member (16) altogether.
  • This reshaping may be done in any manner as known in the art, by heating and subsequently reshaping it, by pure mechanical reshaping etc., but could also simply be the form of the pre-tube (13) as it is constructed.
  • Fig. 3D shows a view seen into the proximal end of the outer member (7) showing an embodiment with four ribs (10) extending in the radial direction.
  • the single body is made of a shape-memory material of any kind as known in the art, but is preferably made of a shape- memory material being biocompatible. Alternatively to being biocompatible the shape-memory material is covered by a biocompatible coating of any kind known in the art.
  • the single body could be made of a spring material (steel, stainless steel etc.), or of any other material and / or in any construction, as known in the art to ensure that such an expandable section will expand to an expanded state when unaffected by compressible forces, such as being inside a tube of a radial diameter less than the radial diameter of the expandable section in its expanded state.
  • a spring material steel, stainless steel etc.
  • This 'single body' embodiment is especially preferred in that it reduces the number of components forming the part of the device (1) to be introduced intravascularly, thereby easing the manufacturing process, but also minimizing the risk of small parts of the device (1) breaking off within the vascular system with the risk to make damage within the living creature (such as a human being or more generally an animal).
  • Another advantage is to shield the functional part, such as a micro-dialysis membrane, from being damaged during introduction and operation, to affect its functionality.
  • Fig. 4A-C illustrates the insertion procedure and functionality of the present invention.
  • the internal diameter of the introducer (4) is larger than the outer diameter of the outer member (7) and the expandable section (8) when in a collapsed state, however significantly smaller than the outer diameter of the expandable section (8) when in its expanded state.
  • the expandable section (8) when the expandable section (8) is situated inside the introducer (4), it will be kept in a collapsed state, but will expand as it reaches out of the distal opening of the introducer (4), being intravascularly positioned.
  • Fig. 4A shows the device (1) when introduced into a vasculature (2) where the expandable section being inside the introducer tube (5) is in a collapsed state
  • Fig. 4B shows the situation when the device (1) is introduced for operation with the expandable section (8) keeping the sensor section (3) away from the vascular walls
  • Fig. 4C shows the situation where the device (1) is being removed and where the expandable section (8) collapses as it is retracted into the internal of the introducer tube (5).
  • One major aspect of the present invention is, that when introducing, removing and during operation of the device (1) when it is Wfully inserted into the body, then at any time all of the inner member (6) is in the inner lumen of and thus enclosed by the outer member (7). Further, this is in such a manner that the functional (or sensor) section (3) is positioned within the expandable section (8) of the outer member (7) during in vivo operation of the device (1).
  • the ribs (10) may not be formed as straight lines, they may comprise at least first sections (17) running at a first angle and second sections (18) running at a second angle relative to an axis (19) parallel to the longitudinal direction of the extension of the expandable section (8) as seen in Fig. 5A, where the first (17) and the second (18) sections may be curved.
  • the rib elements (8) may also form a bifurcated and/or branched structure or network of rib elements (8) with at least first sections (17) running at a first angle and with sections (18) running at a second angle relative to an axis (19) parallel to the longitudinal direction of the extension of the expandable section.
  • Fig. 5A shows the ribs being formed by pure cuts
  • Fig. 5B as areas being formed by cutting areas of material out of the tube (13), however, in any of the embodiments of this invention, the ribs may be formed in either manner, or even by a combination.
  • Figs. 6A-C illustrate a further embodiment of the present invention, where the device (1), or more specifically the outer member (7) is proximally equipped with a first connector (21 ) to match a second connector (22) of the introducer (4) in such a manner that the first and the second connectors (21 , 22) may be fixed to one another.
  • the length of the outer member (7) from the first connector (21) to the expandable section (8) will match the length of the introducer (4) in such a manner, that when the first and the second connectors (21 , 22) are fixed to one another, the device (1) is fully inserted with the expandable section (8) extending out of the introducer (4).
  • the connectors (21 , 22) may be of any kind known in the art, such as a lure cap with windings, a clamp system as illustrated in the Figs. 6A-C etc. The important thing is not how the connection is achieved, just the functionality of connecting the parts.
  • the connectors (21 , 22) may be attached to the introducer (4) and the outer member (7) in any manner known in the art, such as gluing etc.
  • gluing any manner known in the art, such as gluing etc.
  • adhering material such as glue
  • its surface roughness may have been increased, such as, but not limited to, by sandblasting.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Pulmonology (AREA)
  • Optics & Photonics (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

La présente invention porte sur un dispositif destiné à être inséré dans une cavité, un organe creux ou un élément analogue d'un être vivant tel qu'un être humain ou, de manière plus générale un animal, le dispositif comprenant une partie fonctionnelle qui, de préférence, ne doit pas entrer en contact avec les parois internes de la cavité ou de l'organe creux. Le dispositif comprend une partie ayant une section radialement expansible destinée à entourer la partie fonctionnelle et à entrer éventuellement en contact avec les parois en formant une certaine fixation du dispositif à l'intérieur de la cavité ou de l'organe creux. La section expansible dans le mode de réalisation privilégié est formée par un matériau à mémoire de forme, un matériau élastique etc.
PCT/DK2010/000167 2009-12-09 2010-12-07 Dispositif intra-vasculaire avec section radialement expansible WO2011069505A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200901296 2009-12-09
DKPA200901296 2009-12-09

Publications (1)

Publication Number Publication Date
WO2011069505A1 true WO2011069505A1 (fr) 2011-06-16

Family

ID=43645912

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2010/000167 WO2011069505A1 (fr) 2009-12-09 2010-12-07 Dispositif intra-vasculaire avec section radialement expansible

Country Status (1)

Country Link
WO (1) WO2011069505A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8920270B2 (en) 2012-06-30 2014-12-30 Easton Technical Products, Inc. Arrow vane apparatus and method
CN105813553A (zh) * 2013-12-06 2016-07-27 火山公司 用于评估血管内压力的装置、系统和方法
CN109259909A (zh) * 2018-11-22 2019-01-25 上海市东方医院 防移位易回收的胆道内支撑管及置入装置
US11006840B2 (en) 2013-12-06 2021-05-18 Philips Image Guided Therapy Corporation Device, system, and method for assessing intravascular pressure

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0343094A2 (fr) * 1988-04-28 1989-11-23 FOGARTY, Thomas J. Cathéter pour angioscopie avec un déflecteur
US5122125A (en) 1990-04-25 1992-06-16 Ashridge A.G. Catheter for angioplasty with soft centering tip
US5256146A (en) 1991-10-11 1993-10-26 W. D. Ensminger Vascular catheterization system with catheter anchoring feature
EP0750919A2 (fr) 1995-06-29 1997-01-02 Fuji Systems Corporation Cathéter à ballonet à demeure pour perfusion artérielle
US5769821A (en) 1992-03-02 1998-06-23 Quinton Instrument Company Catheter tip retainer
US6014579A (en) * 1997-07-21 2000-01-11 Cardiac Pathways Corp. Endocardial mapping catheter with movable electrode
US20040073132A1 (en) * 2002-05-07 2004-04-15 Tracy Maahs Systems and methods for detecting vulnerable plaque
US20050215871A1 (en) * 2004-02-09 2005-09-29 Feldman Benjamin J Analyte sensor, and associated system and method employing a catalytic agent
US20070078386A1 (en) * 2005-08-30 2007-04-05 Cytyc Corporation Movable anchoring catheter
WO2009038555A1 (fr) * 2007-09-19 2009-03-26 Prescient Medical, Inc. Cathéters à sonde ultrasonore vasculaires optimisés
WO2009049296A2 (fr) * 2007-10-12 2009-04-16 The General Hospital Corporation Systèmes et procédés d'imagerie optique de structures anatomiques luminales

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0343094A2 (fr) * 1988-04-28 1989-11-23 FOGARTY, Thomas J. Cathéter pour angioscopie avec un déflecteur
US5122125A (en) 1990-04-25 1992-06-16 Ashridge A.G. Catheter for angioplasty with soft centering tip
US5256146A (en) 1991-10-11 1993-10-26 W. D. Ensminger Vascular catheterization system with catheter anchoring feature
US5769821A (en) 1992-03-02 1998-06-23 Quinton Instrument Company Catheter tip retainer
EP0750919A2 (fr) 1995-06-29 1997-01-02 Fuji Systems Corporation Cathéter à ballonet à demeure pour perfusion artérielle
US6014579A (en) * 1997-07-21 2000-01-11 Cardiac Pathways Corp. Endocardial mapping catheter with movable electrode
US20040073132A1 (en) * 2002-05-07 2004-04-15 Tracy Maahs Systems and methods for detecting vulnerable plaque
US20050215871A1 (en) * 2004-02-09 2005-09-29 Feldman Benjamin J Analyte sensor, and associated system and method employing a catalytic agent
US20070078386A1 (en) * 2005-08-30 2007-04-05 Cytyc Corporation Movable anchoring catheter
WO2009038555A1 (fr) * 2007-09-19 2009-03-26 Prescient Medical, Inc. Cathéters à sonde ultrasonore vasculaires optimisés
WO2009049296A2 (fr) * 2007-10-12 2009-04-16 The General Hospital Corporation Systèmes et procédés d'imagerie optique de structures anatomiques luminales

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8920270B2 (en) 2012-06-30 2014-12-30 Easton Technical Products, Inc. Arrow vane apparatus and method
CN105813553A (zh) * 2013-12-06 2016-07-27 火山公司 用于评估血管内压力的装置、系统和方法
EP3076864A4 (fr) * 2013-12-06 2016-12-07 Volcano Corp Dispositif, système et méthode de mesure de la pression intravasculaire
US11006840B2 (en) 2013-12-06 2021-05-18 Philips Image Guided Therapy Corporation Device, system, and method for assessing intravascular pressure
CN109259909A (zh) * 2018-11-22 2019-01-25 上海市东方医院 防移位易回收的胆道内支撑管及置入装置

Similar Documents

Publication Publication Date Title
CN104434083B (zh) 具有可挠曲脊的网篮导管
US4665918A (en) Prosthesis system and method
US10252027B2 (en) Transvascular access device and method
EP2203209B1 (fr) Dispositif à cathéter pour traitement de vasculatures
US11654264B2 (en) Guide for intravascular device
CN106237410B (zh) 用于引入泵的系统
US5885258A (en) Medical instrument with slotted memory metal tube
US6728579B1 (en) “Medical electrode lead”
US20200205643A1 (en) Locatable Expandable Working Channel And Method
EP3884858A1 (fr) Appareil et procédé de déploiement et de fixation de capteur
JP7357383B2 (ja) 心臓補助システムの血流を導くためのラインデバイス、それを用いた心臓補助システム、ならびにその製造および組立方法
WO2011069505A1 (fr) Dispositif intra-vasculaire avec section radialement expansible
US10525235B2 (en) Wire centering sheath and method
US20230263992A1 (en) Apparatus and method for sensor deployment and fixation
ES2938875T3 (es) Dispositivo de trombectomía
EP3618724A1 (fr) Dispositif pour le prélèvement d'un échantillon biologique
KR101650515B1 (ko) 스텐트 시술용 카테터
JPH0543391B2 (fr)
JP2019072301A (ja) 回収方法
CN116847902A (zh) 以高摩擦编织物促进装置的递送
EP3978061A1 (fr) Cathéter à ballonnet
CN208188118U (zh) 用于微小动脉血管离体标本舒缩功能测量的插管
CN220608845U (zh) 一种医用导向定位装置
US20210393174A1 (en) Diversified glucose sensor system
CN118236111A (zh) 弹簧圈推送装置及弹簧圈系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10798496

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 10798496

Country of ref document: EP

Kind code of ref document: A1