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WO2024107470A1 - Systèmes et dispositifs de ballonnet de lithoplastie intravasculaire à câble unitaire et monobloc stérile jetable, poignée, moyeu, cathéter et ballonnet - Google Patents

Systèmes et dispositifs de ballonnet de lithoplastie intravasculaire à câble unitaire et monobloc stérile jetable, poignée, moyeu, cathéter et ballonnet Download PDF

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Publication number
WO2024107470A1
WO2024107470A1 PCT/US2023/073648 US2023073648W WO2024107470A1 WO 2024107470 A1 WO2024107470 A1 WO 2024107470A1 US 2023073648 W US2023073648 W US 2023073648W WO 2024107470 A1 WO2024107470 A1 WO 2024107470A1
Authority
WO
WIPO (PCT)
Prior art keywords
unitary
pulse generator
balloon
ivl
catheter assembly
Prior art date
Application number
PCT/US2023/073648
Other languages
English (en)
Inventor
John R. Ballard
Jacob T. WILLIAMS
Austin P. PETRONACK
Original Assignee
Nextern Innovation, Llc
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 Nextern Innovation, Llc filed Critical Nextern Innovation, Llc
Publication of WO2024107470A1 publication Critical patent/WO2024107470A1/fr

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/22004Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
    • A61B17/22012Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/22004Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
    • A61B17/22012Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
    • A61B17/22022Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement using electric discharge
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/22004Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
    • A61B17/22012Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
    • A61B2017/22025Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement applying a shock wave
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22051Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
    • A61B2017/22062Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation to be filled with liquid

Definitions

  • the invention relates to systems, devices and methods for breaking up calcified lesions in an anatomical conduit. More specifically, an electrical arc is generated between two spacedapart electrodes disposed within a fluid-filled member, creating pressure waves.
  • a variety of techniques and instruments have been developed for use in the removal or repair of tissue in arteries and similar body passageways, including removal and/or cracking of calcified lesions within the passageway and/or formed within the wall defining the passageway.
  • a frequent objective of such techniques and instruments is the removal of atherosclerotic plaque in a patient's arteries.
  • Atherosclerosis is characterized by the buildup of fatty deposits (atheromas) in the intimal layer (i.e., under the endothelium) of a patient's blood vessels. Very often over time what initially is deposited as relatively soft, cholesterol-rich atheromatous material hardens into a calcified atherosclerotic plaque, often within the vessel wall.
  • Such atheromas restrict the flow of blood, cause the vessel to be less compliant than normal, and therefore often are referred to as stenotic lesions or stenoses, the blocking material being referred to as stenotic material. If left untreated, such stenoses can cause angina, hypertension, myocardial infarction, strokes and the like.
  • Angioplasty or balloon angioplasty, is an endovascular procedure to treat by widening narrowed or obstructed arteries or veins, typically to treat arterial atherosclerosis.
  • a collapsed balloon is typically passed through a pre-positioned catheter and over a guide wire into the narrowed occlusion and then inflated to a fixed pressure.
  • the balloon forces expansion of the occlusion within the vessel and the surrounding muscular wall until the occlusion yields from the radial force applied by the expanding balloon, opening up the blood vessel with a lumen inner diameter that is similar to the native vessel in the occlusion area and, thereby, improving blood flow.
  • the angioplasty procedure presents some risks and complications, including but not limited to: arterial rupture or other damage to the vessel wall tissue from over-inflation of the balloon catheter, the use of an inappropriately large or stiff balloon, the presence of a calcified target vessel; and/or hematoma or pseudoaneurysm formation at the access site.
  • the pressures produced by traditional balloon angioplasty systems is in the range of 10-15atm, but pressures may at times be higher.
  • the primary problem with known angioplasty systems and methods is that the occlusion yields over a relatively short time period at high stress and strain rate, often resulting in damage or dissection of the conduit, e.g., blood vessel, wall tissue.
  • FIG. 2 illustrates one model of a known, prior art, lithotripsy system marketed by Shockwave Medical.
  • a pulse generator is illustrated and configured to generate voltage pulses.
  • the voltage pulses travel along wire conductors that are disposed within the fVL connector cable with actuating handle that is connected with the pulse generator.
  • the wire conductors continue distally through the catheter connector, hub and catheter shaft and arriving at emitters or spaced-apart electrode pairs located within an angioplasty balloon.
  • FIG. 2 illustrates the catheter connector, hub and catheter shaft of the lithotripsy system of Fig. 2 in more detail.
  • the catheter connector comprises a connection port configured to connect with a connection receptacle located at the distal end of the IVL connector cable.
  • the connection between the catheter connector’s connection port and the IVL connector cable’s connection receptacle is shown in Figure 4, wherein the catheter connector’s connection port is inserted into the connection receptacle of the catheter connector to comprise an electrical connection.
  • the known device of Figs. 1-3 thus requires the following steps to prepare the device for therapeutic delivery, taken from Shockwave Intravascular Lithotripsy (IVL) System with the Shockwave S4 Peripheral Intravascular Lithotripsy (IVL) Catheter Instructions for Use (“IFU”) (See Shockwave IFU Portal at Mstnrcti s fbr..lJse.l Shockwave . edical.; https.7/discover. shockwavemedicaLcom/ifu).
  • this prior art device s instructions for use (IFU) state that “This device is intended for single (one) time use only. DO NOT re-sterilize and/or reuse”.
  • step 11 supra provides for placement of a sterile sleeve or probe cover over the IVL connector cable and handle to allow for reuse of that component which, therefore is not single use
  • the remainder of the components downstream (on the balloon side) of the IVL connector cable are to be discarded after use.
  • the operator must now actuate the pulse generator using the handle within the IVL Connector Cable component through the sterile sleeve or probe cover.
  • the sterile sleeve or probe cover intervenes between the operator and the actuating handle and, therefore, must be transparent to allow visualization of the underlying control(s) on the handle.
  • the sleeve is also movable relative to the handle and the slidable position or location of the sleeve relative to the handle is not a predictable interaction and can impact operational control.
  • the IVL connector cable must be placed into a sterile sleeve or cover; see step 11 above.
  • the IVL connector cable is a separate component, i.e., is not integrated with the remaining components, it must be provided with two interconnection means, one interconnect at a proximal end for connecting to the IVL pulse generator, and one interconnect at the distal end for interconnecting with a proximal end of the catheter connector.
  • the catheter connector’s proximal end must have a complementary connector to allow interconnection with the distal interconnect of the IVL connector cable.
  • the known device of Figs. 1-3 requires (1) a separate and reusable IVL connector cable with two interconnects; and (2) a separate disposable catheter connector with integrated hub, catheter and balloon.
  • the catheter connector, hub, catheter and balloon may be removed after disconnection with the IVL connector cable.
  • FIGURE 1 illustrates a known system.
  • FIGURE 2 illustrates one embodiment of a known system.
  • FIGURE 3 illustrates one embodiment of a known system.
  • FIGURE 4 illustrates a perspective view of one embodiment of a console of the present invention.
  • FIGURE 5 illustrates a perspective view of one embodiment of an assembly of the present invention.
  • FIGURE 6 illustrates a side view of one embodiment of the present invention.
  • FIGURE 7 illustrates a perspective view of one embodiment of the present invention.
  • FIGURE 8 illustrates a block diagram of one embodiment of the present invention.
  • the prior art system currently marketed by Shockwave Medical, Inc. requires two interconnected components on the downstream or balloon side of the IVL pulse generator.
  • One of the interconnected components, the IVL connector cable requires a sterile sleeve or probe cover to be placed over the component before use to preserve sterility and allow the component to be reused.
  • the second component, the catheter connector, hub, catheter and balloon is an assembly that is provided as an integrated, inseparable sterile unit and is single-use only.
  • the present invention avoids the multi-step assembly, and multi-step disassembly required if the catheter/balloon is to be replaced during therapy, of the prior art device.
  • the entire portion of the disclosed system that is downstream of the pulse generator is integrated into an inseparable one-piece assembly. That is, the cable connecting with the IVL console, handle, hub, catheter shaft and balloon are all a sterile and single-piece, unitary structure with components that cannot be disconnected from each other or disassembled. This is in contrast to the prior art system discussed above that requires two separate structures downstream of the IVL pulse generator.
  • Figure 4 illustrates an embodiment of the IVL pulse console or generator 100 that interconnects with the inventive assembly. A connector receptacle 102 for the single connection required for the inventive assembly is provided on the IVL pulse generator 100 as illustrated.
  • Figures 5 and 6 illustrate embodiments of the inventive assembly 200.
  • an interconnect 202 is provided at the proximal end of the assembly 200 which is configured to connect with the IVL pulse generator’s connector receptacle 102 and which is, in turn, operatively connected with an electric cable 204 that leads to an actuating handle 206.
  • the handle 206 is in operative connection with an IVL connector cable 208 which is, in turn, permanently connected with a portion of an access hub 210 (for allowing guidewire and inflation/deflation fluid access as well as operative electrical connection with wire conductors that are operatively electrically connected with the IVL pulse generator 100 via the connector receptacle 102) which operatively connects with a catheter 212.
  • a fluid-inflatable balloon 214 is disposed at or near a distal end of the catheter shaft 212, wherein one or more pairs of spaced-apart electrodes are located within the balloon 214.
  • Wire conductors run through or along the assembly between the IVL pulse generator 100 and at least one of the spaced-apart electrodes. Note that the entire assembly 200 is one-piece, and requires a single connector/connection between the interconnect 202 and the connector receptacle 102 to prepare the assembly for therapy.
  • FIG. 6 illustrates a side cutaway view of the assembly 200 of Fig. 5, from the hub 210 and showing an exemplary balloon 214 placement.
  • the hub 210 comprises, as shown, a guide wire port GWP configured to allow guide wire access through the hub 210, catheter shaft 212 and balloon 214.
  • the hub 210 further comprises a balloon inflation port BIP configured to allow fluid from a fluid reservoir (not shown) into the assembly 200 for inflation of the balloon 214.
  • the balloon inflation port BIP is further configured to allow a pathway to remove fluid, or deflate, the balloon 214.
  • the hub 210 further comprises an IVL connection port IVLP which is a permanent physical and operative electrical connection between the IVL connector cable 208.
  • the IVLP is configured to provide electrical connection and communication from the pulse generator 100 to wire conductors disposed within the catheter shaft 212 which lead to the spaced-apart electrode pairs within the balloon 214.
  • Figure 7 provides an embodiment of an assembled IVL system 300 comprising the single interconnection between the inventive single-piece and disposable assembly 200 described above and the IVL pulse generator 100, also described above.
  • the one-piece, unitary structure requires just one interconnection to set up power and control of the system 300, that is, the interconnection between the electrical cable 204 proximal to the actuating handle 206 and the IVL pulse generator 100.
  • This is in contrast to the prior art system which requires two separate interconnections: (1) the interconnection between the proximal end of the IVL connector cable and the IVL pulse generator; (2) the interconnection between the distal end of the IVL connector cable and the proximal end of the catheter connector.
  • the one-piece, unitary structure comprising the disposable catheter assembly 200 is entirely disposable, making preparation of the IVL system 300 for therapy simpler than the prior art system.
  • the inventive device’s catheter/balloon 214, or other component of the disposable catheter assembly 200 requires replacement during a therapy, the entire assembly 200 is simply disconnected from the IVL pulse generator 100, removed from the patient, with a new assembly 200 located within the patient and then reconnected to the IVL pulse generator 100.
  • the actuating handle 206 may comprise a data encoding element DEE such as an EPROM or RFID or other similar device comprising a non-volatile memory and/or a device comprising a one-time programmable memory (OTP).
  • the IVL pulse generator 100 may comprise an IVL control system comprising a processor 24 configured to execute instructions that may be stored on the memory 26 and further comprising circuitry 28 for IVL operations according to the processor 24 guidance.
  • the data encoding element DEE may be in electrical communication with at least the processor 24.
  • Data encoding element DEE may comprise at least some, and in preferred embodiments, all, of the operational parameters relating specifically to the disposable catheter assembly 200. This configuration allows the IVL pulse generator 100 to conduct the IVL procedure according to the processor 24 guidance that may be modified depending on the specific catheter assembly 200 characteristics and features which are provided to the processor 24 by the data encoding element DEE. For example, IVL systems comprising different outer diameter sizes of balloons may require different voltage levels. Encoding this data into the data encoding element DEE enables the processor 24 to recognize the balloon size when the disposable catheter assembly 200 is connected to the IVL pulse generator as described above.
  • the data encoding element DEE may comprise a memory that may log or track certain events and communicate those logged or tracked events to the processor 24 for comparison against predetermined values and/or thresholds.
  • Certain embodiments of the DEE’s memory may comprise storage of therapeutic parameters that may be specific to the specific disposable catheter assembly 200 and that may be uniquely varied across different models of the disposable catheter assembly.
  • the memory of the DEE may be in communication with the IVL console or generator 100 via connector receptacle 102.
  • the processor 24 may log or track certain events and store them in the associated memory 28 for comparison against predetermined values and/or thresholds. Still more alternatively, the data encoding element DEE and the processor 24 may each log or track certain events and store them for comparison against predetermined values and/or thresholds. In some embodiments, the data encoding element DEE may log or track certain events and provide that data to the processor 24 for comparison against predetermined values and/or thresholds. In certain embodiments, the tracked or logged events and/or other predetermined data stored within memory 28 may be communicated to the IVL console or generator 100 via connector receptacle 102.
  • the ability to store the algorithm parameters, and any logged or tracked events discussed herein, within the data encoding element DEE allows console 100 algorithm work to be executed without having to hardcode on the console the specific therapeutic parameters and/or algorithm that is specific for a certain model of disposable catheter assembly 200.
  • a related advantage is that any updates for existing catheter assemblies 200 and/or new therapeutic parameters and/or algorithms for new catheter assembly models 200 are stored on the data encoding element DEE and does not require releasing a new console 100 or updating a console 100 memory. Instead, the data encoding element DEE is simply connected with the console 100 and the required data is shared with, transmitted to, and/or accessed by the console 100.
  • the data encoding element DEE and/or processor 24 may further comprise additional data, including but not limited to the following:
  • the data encoding element DEE enables easier investigation of device use history and can stop delivery of voltage pulses when the specific number of allowed voltage pulses provided data encoding element DEE have been generated.
  • the data encoding element DEE may further comprise a number of parameters that are specific to the disposable catheter assembly 200, including but not limited to:
  • console or pulse generator 100 may write the fault detection occurrences to the data encoding element DEE therapy log and thereafter prevent further voltage pulses being generated to the connected catheter assembly 200. This may also coincide with an error message displayed to the user.
  • a non-exhaustive list of fault conditions that may be detected retrospectively (after delivery of a voltage pulse) comprises:
  • Pulses delivered if the catheter assembly 200 balloon is not inflated to a predetermined therapeutic pressure may indicate and/or include operator error or misuse or device damage such as a burst balloon.
  • Console or pulse generator 100 attempted to deliver a voltage pulse and did not detect a rise in current over a predetermined peak current threshold, indicating an unsuccessful pulse was generated and delivered.
  • a non-exhaustive list of fault conditions that may be detected prospectively or before generating and delivering a voltage pulse comprises:
  • the catheter assembly 200 attempted to be used to generate and deliver voltage pulses after a predetermined time period has passed. For example, no further voltage pulses maybe generated and delivered to a catheter assembly 200 after the catheter assembly 200 has been connected with the console or pulse generator 100 for more than a predetermined amount of time, e.g., and without limitation this predetermined connection threshold or limit may comprise 1 - 8 hours.
  • the catheter assembly 200 may be attempted to generate and deliver voltage pulses after the catheter assembly 200 and/or the console or voltage generator has/have reached a predetermined shelflife.
  • the catheter assembly may be attempted to generate and deliver voltage pulses after the maximum number of pulses for a catheter assembly have been generated and delivered.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Vascular Medicine (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Mechanical Engineering (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)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

Divers modes de réalisation des systèmes, des procédés et des dispositifs sont fournis pour rompre des lésions calcifiées dans un conduit anatomique, des systèmes donnés à titre d'exemple générant un arc électrique entre deux électrodes espacées disposées à l'intérieur d'un ballonnet rempli de fluide. Dans certains modes de réalisation, l'invention concerne un ensemble unitaire monobloc comprenant un câble d'interconnexion, une poignée d'actionnement, un moyeu, un cathéter et un ballonnet d'angioplastie.
PCT/US2023/073648 2022-11-18 2023-09-07 Systèmes et dispositifs de ballonnet de lithoplastie intravasculaire à câble unitaire et monobloc stérile jetable, poignée, moyeu, cathéter et ballonnet WO2024107470A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202263384288P 2022-11-18 2022-11-18
US63/384,288 2022-11-18

Publications (1)

Publication Number Publication Date
WO2024107470A1 true WO2024107470A1 (fr) 2024-05-23

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PCT/US2023/073648 WO2024107470A1 (fr) 2022-11-18 2023-09-07 Systèmes et dispositifs de ballonnet de lithoplastie intravasculaire à câble unitaire et monobloc stérile jetable, poignée, moyeu, cathéter et ballonnet

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WO (1) WO2024107470A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9289258B2 (en) * 2011-03-08 2016-03-22 Nexus Control Systems, Llc Ablation catheter system with safety features
US9757194B2 (en) * 2007-12-10 2017-09-12 Medtronic Ablation Frontiers Llc RF energy delivery system and method
US20200038044A1 (en) * 2008-05-07 2020-02-06 Northgate Technologies Inc. Radially-Firing Electrohydraulic Lithotripsy Probe
US10850078B2 (en) * 2014-12-30 2020-12-01 The Spectranetics Corporation Electrically-induced fluid filled balloon catheter
US20210220052A1 (en) * 2020-01-22 2021-07-22 Bolt Medical, Inc. Lithoplasty device with advancing energy wavefront
US20220104875A1 (en) * 2019-04-18 2022-04-07 Galary, Inc. Devices, systems and methods for the treatment of abnormal tissue
US20220183708A1 (en) * 2020-12-11 2022-06-16 Shockwave Medical, Inc. Lesion crossing shock wave catheter
US20220338890A1 (en) * 2021-02-26 2022-10-27 Fastwave Medical Inc. Intravascular lithotripsy

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9757194B2 (en) * 2007-12-10 2017-09-12 Medtronic Ablation Frontiers Llc RF energy delivery system and method
US20200038044A1 (en) * 2008-05-07 2020-02-06 Northgate Technologies Inc. Radially-Firing Electrohydraulic Lithotripsy Probe
US9289258B2 (en) * 2011-03-08 2016-03-22 Nexus Control Systems, Llc Ablation catheter system with safety features
US10850078B2 (en) * 2014-12-30 2020-12-01 The Spectranetics Corporation Electrically-induced fluid filled balloon catheter
US20220104875A1 (en) * 2019-04-18 2022-04-07 Galary, Inc. Devices, systems and methods for the treatment of abnormal tissue
US20210220052A1 (en) * 2020-01-22 2021-07-22 Bolt Medical, Inc. Lithoplasty device with advancing energy wavefront
US20220183708A1 (en) * 2020-12-11 2022-06-16 Shockwave Medical, Inc. Lesion crossing shock wave catheter
US20220338890A1 (en) * 2021-02-26 2022-10-27 Fastwave Medical Inc. Intravascular lithotripsy

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