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WO2019147833A1 - Appareil de déploiement de fil et procédé associé - Google Patents

Appareil de déploiement de fil et procédé associé Download PDF

Info

Publication number
WO2019147833A1
WO2019147833A1 PCT/US2019/014980 US2019014980W WO2019147833A1 WO 2019147833 A1 WO2019147833 A1 WO 2019147833A1 US 2019014980 W US2019014980 W US 2019014980W WO 2019147833 A1 WO2019147833 A1 WO 2019147833A1
Authority
WO
WIPO (PCT)
Prior art keywords
lead
piston assembly
needle
clamp piston
needle component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2019/014980
Other languages
English (en)
Inventor
John O'mahony
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stimdia Medical Inc
Original Assignee
Stimdia Medical Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stimdia Medical Inc filed Critical Stimdia Medical Inc
Publication of WO2019147833A1 publication Critical patent/WO2019147833A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3468—Trocars; Puncturing needles for implanting or removing devices, e.g. prostheses, implants, seeds, wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode

Definitions

  • Figure 3.0 shows a cross-section of a needle with a lead placed at the tip and a deployment route of the needle during needle retraction, as may be implemented in accordance with one or more embodiments;
  • Figure 4.0 shows a lead tip, as may be implemented in accordance with one or more embodiments
  • Figure 8.0 shows a front and end view of a compression valve, as may be implemented in accordance with one or more embodiments
  • systems and/or methods involve temporarily providing stiffness or other support to a lead or device being deployed (e.g., implanted) with a needle, during retraction of the needle, while maintaining a catheter or lead position with respect to the original needle insertion depth.
  • a lead may refer to a pacing lead, a sensor embedded in a lead, or another device that can be deployed through a needle.
  • a lead refers to a catheter device.
  • a lead deployment device has slots in a stiff polymer disk that facilitate a priming function for inserting a needle (e.g., which may be carried out while a Tuohy Borst Valve as noted above is closed).
  • a method involves passing a lead through a needle component and a clamp piston assembly in which the needle component has a housing and a needle tip, and an opening therein extending through the housing and tip and being configured to pass the lead.
  • the clamp piston assembly is coupled to the needle component and has an opening therein configured to pass the lead therethrough.
  • the lead is fixed in place relative to the clamp piston assembly while the needle component moves relative to the clamp piston assembly and slides along the lead, by clamping the lead to the clamp piston assembly. Clamping the lead in place may involve, for example, applying pressure to a portion of the clamp piston assembly and therein causing the portion of the clamp piston assembly to deflect and clamp the lead relative to the clamp piston assembly.
  • the needle component may be inserted with the needle tip extending to a depth within a material, and the lead component is positioned within the needle component and extending to the needle tip. This positioning may be effected prior to, after or during insertion of the needle tip.
  • the lead is fixed in place relative to the clamp piston assembly while the needle component moves by clamping the lead to the clamp piston and holding the clamp piston in place relative to the material, while withdrawing the needle component from the material by moving the needle component toward the clamp piston assembly as it is being retracted over the lead in the material.
  • the lead is fixed in place relative to the clamp piston assembly while the needle component moves relative to the clamp piston assembly and slides along the lead, by sliding a piston head of the clamp piston assembly within a housing of the needle component.
  • the housing may have an inner surface configured to accept the clamp piston assembly therein with an outer surface of the piston head interfacing therewith to maintain alignment of the housing and the clamp piston assembly.
  • the inner housing surface is cylindrical and the piston head is cylindrical, the two may slide relative to one another with a tolerance-type fit.
  • the slide rod 108 may be fixed in place by compression valve 109 at point 110. Fixing the position at 110 of the lead in the compression valve ensures there is no space for the flexible lead 102 to bend between the needle hub 101 and the end of the slide rod 108.
  • the clamp piston 104 is also contained within a cylinder bore containing the compression spring and the piston head 106 of the clamp piston 104.
  • the piston rod may be made from an injection molded polymer or metal.
  • the lead deployment device 100 includes an additional Tuohy Borst clamp that allows the lead deployment device to lock the lead 102 in position if so desired.
  • the Tuohy Borst clamp includes the compression valve 109, compression seal 112, support disk 113, retention guard 114 and rotation grips 115.
  • the retention guard is configured to allow the rotation grips 115 to pass through clearance gap 121.
  • the compression seal is compressed by rotating the rotation grips clockwise and via a screw thread 116 the compression valve 109 compresses the compression seal. This seal is bounded by the body 117 of the lead deployment device 100, the slide rod, and the support disk forcing the seal 112 to expand into groove slots in the slide rod, clamping the lead within the slide rod. Rotating the compression valve counter clockwise releases the compression forces.
  • a retention guard 114 may be used to limit the travel.
  • the lead deployment device 100 includes a luer 118 via which saline may be infused. This may be achieved using a syringe filled with saline and stopcock.
  • the syringe is used to prime the device with saline and the stopcock is used to hold the saline in place when the syringe is removed.
  • the stopcock may be used to close the fluid path if so desired.
  • the retention guard 113 is machined with grooves on one side to allow saline to flow into the chamber 119 past the gap 111 and into the needle bore over the lead. Priming may be performed before the needle is inserted subcutaneously.
  • the needle 101 is connected to the lead deployment device via a male luer fitting 120.
  • FIG. 2.0 shows a lead 200 that may be deployed with a lead deployment device, such as with the lead deployment device 100 shown in Figure 1.0.
  • the lead 200 includes electrodes numbered 0 to 3 (at 201, 202, 203 and 204). Each of the electrodes 0-3 is connected to a contact 206, 205, 204 and 203 (e.g., through internal conductors).
  • the lead diameter 207 e.g. , 087 mm
  • the lead 200 may also include marker bands to denote length at 208 and 209.
  • the duckbill valve 1011 is shown in a magnified view 1022 with a cross-section of the duckbill valve and piston slide 1008, having lead 1002 exiting through the duckbill section 1023.
  • the duckbill is attached to the piston slide via a compression fit or adhesive.

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Pathology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

La présente invention concerne, selon des aspects, des appareils et des procédés impliquant le positionnement d'un fil avec un composant aiguille et un ensemble piston de serrage. Selon un ou plusieurs modes de réalisation, un composant aiguille comprend un boîtier, une pointe d'aiguille et une ouverture à l'intérieur de celle-ci s'étendant à travers le boîtier et la pointe et conçue pour laisser passer un fil à travers elle. Un ensemble piston de serrage est couplé au composant aiguille et comporte également une ouverture à l'intérieur de celui-ci conçue pour faire passer le fil à travers elle. L'ensemble piston de serrage est conçu et agencé avec le composant aiguille pour qu'ils se déplacent l'un par rapport à l'autre pendant que le fil passe à travers eux, et pour fixer le fil en place par rapport à l'ensemble piston de serrage pendant que le composant aiguille se déplace par rapport à l'ensemble piston de serrage et coulisse le long du fil, par serrage du fil sur le piston de serrage.
PCT/US2019/014980 2018-01-25 2019-01-24 Appareil de déploiement de fil et procédé associé Ceased WO2019147833A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862621817P 2018-01-25 2018-01-25
US62/621,817 2018-01-25

Publications (1)

Publication Number Publication Date
WO2019147833A1 true WO2019147833A1 (fr) 2019-08-01

Family

ID=67396241

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2019/014980 Ceased WO2019147833A1 (fr) 2018-01-25 2019-01-24 Appareil de déploiement de fil et procédé associé

Country Status (1)

Country Link
WO (1) WO2019147833A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030028232A1 (en) * 2000-01-20 2003-02-06 Medtronic, Inc. Method of lmplanting a medical electrical lead
US7033326B1 (en) * 2000-12-29 2006-04-25 Advanced Bionics Corporation Systems and methods of implanting a lead for brain stimulation
US8968331B1 (en) * 2010-04-24 2015-03-03 Jerzy Roman Sochor Implantable lead and surgical accessories
US20150073431A1 (en) * 2013-09-06 2015-03-12 Boston Scientific Neuromodulation Corporation Systems and methods for making and using a lead introducer for an implantable electrical stimulation system
US20170340891A1 (en) * 2015-10-15 2017-11-30 Spr Therapeutics, Llc Apparatus and method for positioning, implanting and using a stimulation lead

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030028232A1 (en) * 2000-01-20 2003-02-06 Medtronic, Inc. Method of lmplanting a medical electrical lead
US7033326B1 (en) * 2000-12-29 2006-04-25 Advanced Bionics Corporation Systems and methods of implanting a lead for brain stimulation
US8968331B1 (en) * 2010-04-24 2015-03-03 Jerzy Roman Sochor Implantable lead and surgical accessories
US20150073431A1 (en) * 2013-09-06 2015-03-12 Boston Scientific Neuromodulation Corporation Systems and methods for making and using a lead introducer for an implantable electrical stimulation system
US20170340891A1 (en) * 2015-10-15 2017-11-30 Spr Therapeutics, Llc Apparatus and method for positioning, implanting and using a stimulation lead

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