WO2024076659A1 - Appareil et procédé d'utilisation d'un introducteur perforé - Google Patents

Appareil et procédé d'utilisation d'un introducteur perforé Download PDF

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Publication number
WO2024076659A1
WO2024076659A1 PCT/US2023/034510 US2023034510W WO2024076659A1 WO 2024076659 A1 WO2024076659 A1 WO 2024076659A1 US 2023034510 W US2023034510 W US 2023034510W WO 2024076659 A1 WO2024076659 A1 WO 2024076659A1
Authority
WO
WIPO (PCT)
Prior art keywords
introducer
cannula
lumen
aperture
distal
Prior art date
Application number
PCT/US2023/034510
Other languages
English (en)
Inventor
Torey HOVEST
Original Assignee
The Cleveland Clinic Foundation
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 The Cleveland Clinic Foundation filed Critical The Cleveland Clinic Foundation
Publication of WO2024076659A1 publication Critical patent/WO2024076659A1/fr

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10Tube connectors; Tube couplings
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06Body-piercing guide needles or the like
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M29/00Dilators with or without means for introducing media, e.g. remedies
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/06Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof

Definitions

  • This disclosure relates to an apparatus and method for use of a perforated introducer and, more particularly, to a method and perforated introducer apparatus for use with extracorporeal membrane oxygenation.
  • Extracorporeal membrane oxygenation also known as extracorporeal life support
  • Extracorporeal membrane oxygenation is an extracorporeal technique of providing prolonged cardiac and/or respiratory support to persons whose heart and/or lungs are unable to provide an adequate amount of gas exchange and/or perfusion to sustain life.
  • ECMO could be provided to a patient during or after a major surgical procedure, to help reduce the burden on the patient’s own body to oxygenate the blood due either to heart or lung dysfunction, or both.
  • ECMO ECMO
  • deoxygenated blood is removed from the vasculature of a patient’s body via one lumen of a device, is perfused with oxygen and/or otherwise treated in a therapeutic manner, and then is returned to the patient’s vasculature (either through a different lumen of the same device or through a different device).
  • An example ECMO system and associated devices are taught by the ‘859 publication, among others.
  • Figs. 1 -2 depict a prior art ECMO cannula assembly 100 (which could be a cannula assembly as taught by the ‘859 publication) as configured for use in a patient’s heart.
  • the ECMO cannula assembly 100 is configured to facilitate fluid exchange through a patient’s right atrium (“RA”).
  • RA right atrium
  • PA pulmonary artery
  • the cannula apparatus 100 may be utilized to remove fluid from, and concurrently or consecutively return fluid to, a vasculature of a patient.
  • the outer sheath 102 is inserted to a target removal site in the patient’s body.
  • An infusion cannula 104 could be at least partially held within the outer sheath 102 for concurrent insertion, or the infusion cannula 104 could be absent from the outer sheath 102 until the outer sheath 102 is placed as desired.
  • the infusion cannula 104 could be inserted (or further inserted) distally into the outer sheath 102--optionally with the aid of an introducer--until a distal infusion cannula end extends out a side access aperture of the outer sheath 102, into the configuration shown in Figs. 1 -2, with a fluid return aperture 106 at a target return site within the patient’s vasculature.
  • both the outer sheath 102 and the infusion cannula 104 are in fluid communication with an ECMO circuit at least partially outside the patient’s body (shown schematically at 110 as an ECMO processing machine) for desired processing, such as oxygenation, of the blood removed from the body through the outer sheath 102 before it is returned to the infusion cannula 104.
  • an ECMO circuit at least partially outside the patient’s body (shown schematically at 110 as an ECMO processing machine) for desired processing, such as oxygenation, of the blood removed from the body through the outer sheath 102 before it is returned to the infusion cannula 104.
  • FIGs. 3-4 schematically depict a prior art introducer 112 which can be used to position an infusion cannula 104 in a patient’s vasculature, optionally with the help of guidewire 114.
  • bloodflow (“BF”) provided to the infusion cannula 104 from the ECMO processing machine 110 is blocked by the introducer 112 from passing through the infusion cannula 104 when the introducer 112 is located therein.
  • BF bloodflow
  • An introducer has longitudinally spaced proximal and distal introducer ends.
  • the introducer body has laterally spaced inner and outer introducer walls.
  • the inner introducer wall defines an introducer lumen. At least one aperture extends laterally through the introducer body between the inner and outer introducer walls to place the introducer lumen in fluid communication with an ambient space therethrough.
  • FIG. 1 is a schematic side view of a prior art ECMO device in a first use condition
  • FIG. 2 is a schematic side view of a prior art ECMO device in a second use condition
  • FIG. 3 is a schematic side view of a prior art introducer which can be used with the ECMO devices of Figs. 1-2;
  • FIG. 4 is a schematic side view of the prior art introducer of Fig. 3 in an example use environment
  • FIG. 5 is a schematic side view of an introducer according to a first aspect of the present invention.
  • Fig. 5A is a cross-sectional view taken along line A-A of Fig. 5;
  • FIG. 6 is a schematic side view of the introducer of Fig. 5 in an example use environment
  • FIG. 7 is a schematic side view of an introducer according to a second aspect of the present invention.
  • FIG. 8 is a schematic side view of the introducer of Fig. 7 in an example use environment
  • FIG. 9 is a schematic side view of an introducer according to a third aspect of the present invention.
  • Fig. 10 is a schematic side view of the introducer of Fig. 9 in an example use environment. Description of Aspects of the Disclosure
  • the term “subject” can be used interchangeably with the term “patient” and refer to any warm-blooded organism including, but not limited to, human beings, pigs, rats, mice, dogs, goats, sheep, horses, monkeys, apes, rabbits, cattle, farm animals, livestock, etc.
  • references to a structure or feature that is disposed “directly adjacent” another feature may have portions that overlap or underlie the adjacent feature, whereas a structure or feature that is disposed “adjacent” another feature might not have portions that overlap or underlie the adjacent feature.
  • spatially relative terms such as “under,” “below,” “lower,” “over,” “upper”, “proximal”, “distal”, and the like, may be used herein for ease of description to describe one element or feature’s relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms can encompass different orientations of a device in use or operation, in addition to the orientation depicted in the figures. For example, if a device in the figures is inverted, elements described as “under” or “beneath” other elements or features would then be oriented “over” the other elements or features.
  • the phrase “at least one of X and Y” can be interpreted to include X, Y, or a combination of X and Y.
  • the element may, at a particular time, include X, Y, or a combination of X and Y, the selection of which could vary from time to time.
  • the phrase “at least one of X” can be interpreted to include one or more Xs.
  • the invention comprises, consists of, or consists essentially of the following features, in any combination.
  • Figs. 5-10 each schematically depict an introducer 500 for cooperatively guiding an infusion cannula 502 for movement as desired inside the vasculature of a patient’s body. While the vasculature of a patient is used herein as an example use environment, one of ordinary skill in the art will be able to configure any introducer 500 and/or infusion cannula 502 according to the present invention for a desired use environment (such as, but not limited to, flushing cerebrospinal fluid, ECMO (including pulmonary artery infusion), ECLS, right heart assist or RVAD, wound drainage and flushing, renal dialysis, peritoneal space drainage and flushing, delivery or removal of fluid based therapeutic treatments, and/or other medical and/or non-medical uses).
  • ECMO cerebrospinal fluid
  • ECLS including pulmonary artery infusion
  • RVAD right heart assist or RVAD
  • wound drainage and flushing renal dialysis
  • peritoneal space drainage and flushing delivery or removal of fluid
  • the introducer 500 includes an introducer body 504 having longitudinally spaced proximal and distal introducer ends 506 and 508, respectively.
  • the “longitudinal” direction is substantially parallel to arrow “L” in Fig. 5, which coincides with a direction of insertion of the introducer 500 into the patient’s body.
  • the cross-sectional view of Fig. 5A illustrates a section of the introducer body 504 as having laterally spaced inner and outer introducer walls 510 and 512, respectively.
  • the “lateral” direction as used herein, is substantially perpendicular to the longitudinal direction and is substantially within the plane of the page of Fig. 5A.
  • the inner introducer wall 512 defines an introducer lumen 514.
  • At least one aperture 516 extends laterally through the introducer body 504 between the inner and outer introducer walls 510 and 512 to place the introducer lumen 514 in fluid communication with an ambient space (shown as “A” in Fig. 5A) therethrough. That is, the at least one aperture 516 permits fluid to flow laterally between the introducer lumen 514 and the ambient space A.
  • the aperture(s) 516 may be of any suitable configuration and location upon the introducer body 504 as desired for a particular use application of the introducer 100.
  • apertures 516 having any desired size, shape, wall configuration (e.g., tapered outward from the introducer lumen 514), location upon the introducer body 504, extent of the introducer body 504 covered, alignment with other aperture(s) 516, and/or any other physical properties, and any of the apertures 516 could have at least one different physical property from any one or more of the other apertures 516.
  • An introducer coupler shown schematically at 518, may be located at the proximal introducer end 506 and may be used to attach the introducer 500 to any other desired component and/or may be a standalone handle for assisting a user to manipulate the introducer 500.
  • the introducer coupler 518 may be a hub with at least one of a seal and a hemostatic valve, and may accordingly be configured to prevent backflow of blood out of the introducer coupler 518.
  • the introducer body 504 may be tapered centrally inward adjacent the distal introducer end 508, as shown in the Figures, to form a nosecone.
  • this tapered “nosecone” shape may have a predetermined size and shape for providing a smooth transition to a distal end of the infusion cannula 502 while tapering forward to more closely match the diameter of a guidewire or small catheter inserted through the introducer 500 for easier tracking and guidance of the introducer 500 within the patient’s body.
  • Fig. 6 shows the introducer 500 ready for placement into the patient’s body (or movement/adjustment of position if already located in the patient’s body), with the introducer 500 being at least partially inserted into the infusion cannula 502.
  • the introducer 500 and infusion cannula 502 may comprise at least a portion of a system of maintaining blood flow in an ECMO circuit while repositioning at least a portion of the system (that is, without having to block fluid flow through the infusion cannula 502 in order to utilize an introducer 500).
  • the infusion cannula 502 may include proximal and distal cannula ends 520 and 522, respectively, longitudinally spaced by a cannula body 524 defining a cannula lumen 526.
  • the introducer 500 is configured for selective insertion at least partially through the cannula lumen 536, as shown in Fig. 6, with fluid communication between the proximal cannula end 520 and distal introducer end 508 via/through the cannula lumen 536 being at least partially maintained via the at least one aperture 516 and the introducer lumen 514.
  • blood from the ECMO processing machine 110 can be directed into the proximal cannula end 530, where it enters the introducer lumen 514 through one or more apertures 516 adjacent the proximal introducer end 506.
  • the blood can then travel through the introducer lumen 514 and out one or more apertures 516 adjacent the distal introducer end 508, thus maintaining bloodflow from the ECMO circuit to the patient’s vasculature while the introducer 500 is assisting with movement of the infusion cannula 502.
  • the introducer 500 may be configured to fit snugly enough inside the cannula lumen 526 that any apertures 516 located within the cannular lumen 526 are effectively blocked, thus helping direct bloodflow longitudinally out beyond the distal cannula end 522 before a majority of the blood exits the introducer lumen 514 through the apertures 516.
  • the introducer lumen 514 may be configured to selectively accept at least a portion of a guidewire 528 entirely longitudinally therethrough.
  • the system may include the guidewire 528 for selective insertion at least partially through the introducer lumen 514 from the proximal introducer end 506 to a distal aperture 530 located at the distal introducer end 508.
  • This distal aperture 530 may extend substantially coaxially with the introducer lumen 514, and selectively accept at least a portion of the guidewire 528 longitudinally therethrough, so as to form a “straight shot” for the user to employ the guidewire 528 in a known manner to assist with movement of the infusion cannula 502, when the introducer 500 is located at least partially therein.
  • a guidewire lumen 532 may be defined within the introducer lumen 514 by a guidewire tube (shown as optional in dashed line at 534) extending at least partially longitudinally therethrough--for example, if it is desirable to separate the guidewire 528 from the bloodflow.
  • the infusion cannula 502 may include a bifurcated coupler (shown generally at 536; the coupler could be integrated with, or separately provided to, the infusion cannula 502) at a proximal cannula end 520.
  • the bifurcated coupler 536 when present, may include a first coupler branch 538 configured for selective fluid connection to the ECMO processing machine 110 supplying blood to the Infusion cannula 502.
  • the bifurcated coupler 536 may include a second coupler branch 540 configured to selectively admit the introducer body 504 thereinto (e.g., by being brought at an angle in from a side of the infusion cannula 502).
  • the first and second coupler branches 538 and 540 merge into the cannula lumen 526 at a distalmost end of the bifurcated coupler 536.
  • the introducer 500 is sufficiently flexible to enter the second coupler branch 540 and then bend along the cannula lumen 526 in order to bolster and guide the structure of the infusion cannula 502 for motion inside the body.
  • the removed fluid could be therapeutically treated (e.g., could be oxygenated and/or filtered) after its removal from the vasculature and before its return to the vasculature via the infusion cannula 502.
  • therapeutically treated e.g., could be oxygenated and/or filtered
  • Any desired treatment devices, with appropriate connectors, could be provided to, and/or used with, the introducer 500 and infusion cannula 502 as desired.
  • At least one of the apertures 516 may comprise a void in a repeating or regular lattice pattern formed by the introducer body 504.
  • the Figures are not shown to scale here, nor are apertures 516 restricted to predetermined locations along the introducer body 504, the Fig. 5 aperture arrangement is an example of a repeating void/lattice pattern arrangement.
  • the “lattice pattern” description may be one specific and nonlimiting example of a configuration of the introducer 500 wherein a plurality of apertures 516 are each spaced apart from one another but are collectively located along a supermajority of a length (in the longitudinal direction) of the introducer body 504.
  • Other arrangements of one or more apertures 516 are available for the introducer 500 configuration, and may readily be provided by one of ordinary skill in the art for a particular use environment.
  • Two other specific and nonlimiting examples of introducer 500 configurations will be discussed in more detail below, with reference to Figs. 7-10. It is again noted, however, that the Figures of the present application are merely schematic in nature and are not drawn to scale.
  • a plurality of apertures 516 may be longitudinally spaced apart from one another along the introducer body 504.
  • Direct or indirect fluid communication from a fluid source (e.g., ECMO processing machine 110, as shown in the Figures) into the introducer lumen 514 may be provided by a first subset of the plurality of apertures 516 which are located in a first area of the introducer 500.
  • the first subset of the plurality of apertures 516 are located in an area adjacent the proximal introducer end 506, but which are not substantially blocked from inflow by close lateral proximity of the infusion cannula 502 inner wall.
  • fluid communication from the introducer lumen 514 out to the ambient space A may be provided by a second subset of the plurality of apertures 516, wherein the second subset of apertures 516 are located in a second area of the introducer 500, longitudinally spaced from the first area.
  • the second subset of the plurality of apertures 516 are located in an area adjacent the distal introducer end 508, but which are not substantially blocked from outflow by close lateral proximity of the infusion cannula 502 inner wall-for example, the second subset of apertures may be located on a portion of the introducer body 504 which protrudes distally from the distal infusion cannula end 522.
  • FIGs. 7-8 illustrate a second embodiment of an introducer 500’.
  • the introducer 500’ of Figs, 7-8 is similar to the introducer 500 of Figs. 5-6 and therefore, structures of Figs. 7-8 that are the same as or similar to those described with reference to Figs. 5-6 have the same reference numbers with the addition of a “prime” mark. Description of common elements and operation similar to those in the previously described first embodiment will not be repeated with respect to the second embodiment, but should instead be considered to be incorporated below by reference as appropriate. For clarity, many reference numbers have been omitted from Figs. 7-8 that are present for analogous structures in Figs. 5-6. [00045] In the introducer 500’ shown in Figs.
  • a plurality of first apertures 516’ (labeled generally as “1 A”) is located adjacent the proximal introducer end 506' and a plurality of second apertures 516’ (labeled generally as “2A”) is located adjacent the distal introducer end 508’
  • the central portion C may comprise at least half of a total longitudinal length of the introducer body 504’.
  • one of the first and second aperture 1 A and 2A pluralities could be used to admit blood (e.g., from the ECMO processing machine 110) to the introducer lumen 514’, and the blood could then travel (such as along bloodflow arrows BF) to egress the introducer lumen 514 through the other of the first and second aperture 1 A and 2A pluralities (e.g., to the ambient space A).
  • blood e.g., from the ECMO processing machine 110
  • the blood could then travel (such as along bloodflow arrows BF) to egress the introducer lumen 514 through the other of the first and second aperture 1 A and 2A pluralities (e.g., to the ambient space A).
  • the apertures 516’ are situated toward the distal and proximal introducer ends 508’ and 506’ to help provide rigidity to the introducer 500’ structure, while still maintaining bloodflow into and out of the introducer lumen 514’ during repositioning of the infusion cannula 502’
  • the apertures 516’ could have substantially the same sizes and densities of placement adjacent the respective proximal and distal introducer ends 506’ and 508’, or could be configured (e.g., larger holes in one area and smaller holes in the other) to assist with achieving desired flow dynamics.
  • FIGs. 9-10 illustrate a third embodiment of an introducer 500”.
  • the introducer 500” of Figs. 9-10 is similar to the introducers 500, 500’ of Figs. 5-8 and therefore, structures of Figs. 9-10 that are the same as or similar to those described with reference to Figs. 5-8 have the same reference numbers with the addition of a double “prime” mark. Description of common elements and operation similar to those in the previously described first and second embodiments will not be repeated with respect to the third embodiment, but should instead be considered to be incorporated below by reference as appropriate. For clarity, many reference numbers have been omitted from Figs. 9-10 that are present for analogous structures in Figs. 5-8.
  • a plurality of apertures 516 is located at a plurality of locations along the introducer body 504”. (That is to say, there are multiple apertures 516”, with individual apertures 516” located at one of multiple locations along the introducer body 504”.
  • An average positional density of the plurality of apertures 516” is higher adjacent proximal and/or distal introducer ends 506”, 508” than is an average positional density of the plurality of apertures 516” at a central portion (shown generally at “C”) of the introducer body 504”.
  • the central portion C comprises at least half of a total longitudinal length of the introducer body 504”.
  • the apertures 516 may be “clustered” more closely together adjacent one or both of the proximal and distal introducer ends 506” and 508” than the apertures 516” are “clustered” in the central portion C of the introducer body 504”.
  • the apertures 516 may be “clustered” more closely together adjacent one or both of the proximal and distal introducer ends 506” and 508” than the apertures 516” are “clustered” in the central portion C of the introducer body 504”.
  • the introducer 500” shown in Figs. 9-10 may have at least one selected aperture 516S which has a size and/or a perimeter shape which is different from that of at least one other aperture 516”.
  • the selected aperture 516S may have, for example, a larger cross- sectional area than at least one of the other apertures 516”.
  • the selected aperture 516S is configured to serve as a cannula aperture 516S adjacent a proximal introducer end 506”.
  • the cannula aperture 516S is located adjacent the proximal cannula end 520” when the introducer 500” is inserted at least partially through the cannula lumen 526”, as shown in Fig. 10.
  • the cannula aperture 516S is configured to provide fluid communication between the introducer lumen 514” and the cannula lumen 526” in a direction that extends substantially coaxially with the cannula lumen 526”. That is, the cannula aperture 514” can be substantially aligned with the cannula lumen 526”, as shown in Fig. 10, particularly in situations where the introducer 500” bends to enter the cannula lumen 526 through a bifurcated coupler 536” (either integral with, or separately provided to, the infusion cannula 502”).
  • a guidewire 528 may be selectively inserted at least partially through the introducer lumen 514 from the proximal introducer end 506 to a distal aperture 530 located at the distal introducer end 508.
  • the introducer 500 may be at least partially inserted through the cannula lumen 526, optionally using a bifurcated coupler 536 or other structure to assist with “side loading” the introducer 500 into the infusion cannula 502.
  • Via allowing bloodflow through at least one aperture 516 and the introducer lumen 514 fluid communication between the proximal cannula end 520 and distal introducer end 508 can be at least partially maintained through the cannula lumen 526.
  • Any component could be provided with a user-perceptible marking to indicate a material, configuration, at least one dimension, or the like pertaining to that component, the user-perceptible marking potentially aiding a user in selecting one component from an array of similar components for a particular use environment.
  • a “predetermined” status may be determined at any time before the structures being manipulated actually reach that status, the “predetermination” being made as late as immediately before the structure achieves the predetermined status.
  • the term “substantially” is used herein to indicate a quality that is largely, but not necessarily wholly, that which is specified-a “substantial” quality admits of the potential for some relatively minor inclusion of a non-quality item.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

Un introducteur comprend un corps d'introducteur ayant des extrémités d'introducteur proximale et distale espacées longitudinalement. Le corps d'introducteur comporte des parois d'introducteur interne et externe latéralement espacées. La paroi d'introducteur interne définit une lumière d'introducteur. Au moins une ouverture s'étend latéralement à travers le corps d'introducteur entre les parois d'introducteur interne et externe pour placer la lumière d'introducteur en communication fluidique avec un espace ambiant de manière traversante.
PCT/US2023/034510 2022-10-05 2023-10-05 Appareil et procédé d'utilisation d'un introducteur perforé WO2024076659A1 (fr)

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US202263413270P 2022-10-05 2022-10-05
US63/413,270 2022-10-05

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689402A1 (fr) * 1992-04-03 1993-10-08 Farcot Jean Christian Introducteur vasculaire percutané pour alimentation d'un circuit sanguin extracorporel.
US6179813B1 (en) * 1998-04-24 2001-01-30 Scimed Life Systems, Inc. Vascular infusion device
US20020103472A1 (en) * 2001-02-01 2002-08-01 Kramer Hans W. Collapsible guidewire lumen
US20080125715A1 (en) * 2006-11-21 2008-05-29 David Elliot Cohen Shaped Introducer For Vascular Access
US20120078095A1 (en) * 2009-05-05 2012-03-29 Heck Robert W High-flow tapered peripheral iv catheter with side outlets
US20180161064A1 (en) * 2016-12-09 2018-06-14 Boston Scientific Scimed, Inc. Introducer with expandable capabilities
US20210069475A1 (en) * 2006-06-28 2021-03-11 Abbott Laboratories Expandable introducer sheath to preserve guidewire access

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689402A1 (fr) * 1992-04-03 1993-10-08 Farcot Jean Christian Introducteur vasculaire percutané pour alimentation d'un circuit sanguin extracorporel.
US6179813B1 (en) * 1998-04-24 2001-01-30 Scimed Life Systems, Inc. Vascular infusion device
US20020103472A1 (en) * 2001-02-01 2002-08-01 Kramer Hans W. Collapsible guidewire lumen
US20210069475A1 (en) * 2006-06-28 2021-03-11 Abbott Laboratories Expandable introducer sheath to preserve guidewire access
US20080125715A1 (en) * 2006-11-21 2008-05-29 David Elliot Cohen Shaped Introducer For Vascular Access
US20120078095A1 (en) * 2009-05-05 2012-03-29 Heck Robert W High-flow tapered peripheral iv catheter with side outlets
US20180161064A1 (en) * 2016-12-09 2018-06-14 Boston Scientific Scimed, Inc. Introducer with expandable capabilities

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