WO2020145928A1 - Cathéter d'aspiration à déplacement télescopique - Google Patents

Cathéter d'aspiration à déplacement télescopique Download PDF

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Publication number
WO2020145928A1
WO2020145928A1 PCT/TR2020/050013 TR2020050013W WO2020145928A1 WO 2020145928 A1 WO2020145928 A1 WO 2020145928A1 TR 2020050013 W TR2020050013 W TR 2020050013W WO 2020145928 A1 WO2020145928 A1 WO 2020145928A1
Authority
WO
WIPO (PCT)
Prior art keywords
catheter
vessel
outer catheter
aspiration
motor
Prior art date
Application number
PCT/TR2020/050013
Other languages
English (en)
Inventor
Sonay OGUZ
Original Assignee
Canakkale Onsekiz Mart Universitesi Rektorlugu
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 Canakkale Onsekiz Mart Universitesi Rektorlugu filed Critical Canakkale Onsekiz Mart Universitesi Rektorlugu
Publication of WO2020145928A1 publication Critical patent/WO2020145928A1/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
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/84—Drainage tubes; Aspiration tips
    • A61M1/87—Details of the aspiration tip, not otherwise provided for
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements 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
    • 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
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00982—General structural features
    • A61B2017/00991—Telescopic means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements 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
    • A61B2017/22038—Implements 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 a guide wire
    • A61B2017/22039—Implements 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 a guide wire eccentric
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements 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
    • A61B2017/22051—Implements 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
    • A61B2017/22065—Functions of balloons
    • A61B2017/22067—Blocking; Occlusion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements 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
    • A61B2017/22079—Implements 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 suction of debris
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00—General characteristics of surgical instruments
    • A61B2217/002—Auxiliary appliance
    • A61B2217/005—Auxiliary appliance with suction drainage system

Definitions

  • the invention is related to an aspiration catheter system that is used to remove the thrombus or particles that obstruct a vessel out of the body and to enable reopening of the vessel.
  • TR201200555 discloses a catheter system that can be used for concurrent fluid infusion and aspiration in humans, animals and biological materials at a wide range of flow rates without any blockage problems. This system has devices that control the infused liquid's pressure changes accordingly to the aspirated liquid's pressure changes, in order to allow accurate and safe fluid exchange flow control and create changes of pressures at the catheter's tip that do not allow the catheter's blockage.
  • an aspiration catheter in which vacuum may be accumulated within the catheter and released suddenly within a distal region of the catheter to induce ingestion of intravascular matter into the catheter through an open distal port while avoiding large losses of suction common with catheters having long aspiration lumens.
  • a catheter developed for the aspiration of foreign matter in a blood vessel comprises a flexible outer tube and a flexible inner tube that is inserted into the flexible outer tube having a front end part capable of protruding beyond the flexible outer tube.
  • the aim of the invention is to provide a catheter system having a configuration that comprises a motor that can function for both catheters, single direction valves connected to the motor, aspirator trap, and waste bag and that enables to remove the thrombus inside the vessel without taking the catheter out of the vessel during clogging, by using a single motor.
  • Another aim of the invention is to provide an aspiration catheter system that comprises an outer catheter and an inner catheter that is moveable inside the outer catheter.
  • Figure 1 A general view of the insertion of the catheter into the vessel, using present angiography techniques.
  • Figure 2 Is the general view of the aspiration catheter system subject to the invention.
  • Figure 3 Is the view of the inner catheter being pulled out of the outer catheter in the system subject to the invention.
  • Figure 4 Is the view of the inner catheter being pushed into the outer catheter in the system subject to the invention.
  • Figure 5 Is the view of the un-inflated balloon on the outer catheter in the system subject to the invention.
  • Figure 6 Is the view of the inflated balloon on the outer catheter in the system subj ect to the invention.
  • Figure 7a Is the view of the thrombus being extracted through the inner catheter in the system subject to the invention.
  • Figure 7b Is the view of the inner catheter being pulled into the outer catheter after the thrombus is extracted through the inner catheter in the system subject to the invention.
  • Figure 7c Is the view of the thrombus being moved from the inner catheter into the outer catheter in the system subject to the invention.
  • Figure 8 Is the view of the thrombus being aspired out of the outer catheter in the system subject to the invention.
  • Figure 9 Is the view of the thrombus being aspired out of the inner catheter in the system subject to the invention.
  • Figure 10 Is the detailed view of the head portion of the inner catheter in the system subject to the invention.
  • Skin The invention is an aspiration catheter system comprising,
  • a balloon inflation apparatus (7) that is located on the outer catheter (2) and that is connected to the balloon (4),
  • An apparatus connection section (8) which is located at the end part of the outer catheter (2) that remains outside the vessel,
  • a single direction check valve (13) located at the inlet of the waste bag (10) and on the outlet path of the aspirator trap (9) that is connected to the motor (11),
  • the inner catheter (3) is moveable back and forth inside the outer catheter (2).
  • the outer catheter (2) comprises an inner check valve (5) and an outer check valve (6) at both ends, that prevents blood and fluid passage through.
  • the inner check valve (5) and an outer check valve (6) only allow the passage of a guide wire (15) and the inner catheter (3). (Similar to cork stoppers and IV stoppers)
  • the outer catheter (2) is placed according to the position of the thrombus. At this point, the balloon (4) is uninflated. ( Figure 5) Following this, the balloon (4) that is located at the end section of the outer catheter (2) is inflated by means of the inflation apparatus (7) located on the outer catheter (2) in order to prevent blood flow. ( Figure 6) By this means, it is allowed for the thrombus to enter the distal end and it is enabled for the thrombus to be easily aspired.
  • a pressurized controlled inflation process is carried out. Following the inflation process, the outer catheter (2) should not be moved.
  • the inner catheter (3) is pushed towards the thrombus inside the outer catheter (2).
  • the motor (11) is operated and aspiration is started through the inner catheter (3).
  • the thrombus is sucked through the inner catheter (3).
  • Figure 7a and Figure 9 The thrombus that is sucked through the inner catheter (3) is transferred into the waste bag (10).
  • the single direction check valve (13) located on the outlet path of the aspirator trap (9) that is connected to the motor (11)
  • the thrombi that have been removed are prevented from entering into the aspirator trap (9).
  • the end part of the inner catheter (3) is suitably soft and flexible and at the same time, it has peripheral endurance that can endure aspiration power.
  • the negative pressure indicator (12) is tracked during aspiration. As long as the pressure continues to remain below a certain pressure value (for example up to -200mmHg) the aspiration process is continued. However, if it is noted that the pressure exceeds a certain value, this may indicate that the inner catheter (3) is filled with thrombi and that the lumen is obstructed or that the end part of the inner catheter (3) is bearing onto the vessel lumen and it is trying to vacuum the vessel endothelium.
  • the motor (11) that is carrying out the aspiration process shall be stopped.
  • the inner catheter (3) is retracted back and the end thereof is enabled to enter back into the outer catheter (2).
  • Figure 3 and Figure 7b Following this, the motor (11) is reversely operated and inner cleaning is carried out. In other words, the process of removing the thrombi from the inner catheter (3) that is obstructing the inner catheter (3) is started.
  • Level line (0) the ends of the inner catheter (3) and outer catheter (2) are at the same level.
  • Level line (-) value (-1,-2, -5): The end of the inner catheter (3) is further in, when compared with the end of the outer catheter (2).
  • an angiography can be taken and it can be ensured that thrombi have been removed and that the vessel remains fully open.
  • images can be taken after a contrast agent is delivered through the lumen of the inner catheter (3) while the level line is at +1 position after the inner catheter (3) lumen has been cleaned.
  • the motor (11) can be operated automatically. By this means the thrombi cleaning process can be accelerated.
  • the system subject to the invention can be used to intervene in every vessel including small brain vessels, by producing series having suitable diameters and lengths for every kind of vessel.
  • 1.41 ratio shall be sufficient according to the diameter ratio to volume calculation of the outer catheter (2) and the inner catheter (3).
  • the diameter of the inner catheter (3) is 2mm and the diameter of the outer catheter (2) to be 2.82mm, as the thrombi particles that need to be carried may have a solid structure, it seems suitable for the diameter ratio to be 2.
  • the inner catheter (3) diameter is necessary for the inner catheter (3) diameter to be 2mm, and the outer catheter (2) diameter to be 4mm in order to ensure that the apparatus operates smoothly without being obstructed.
  • the possible damage that may be given to vessels has not only been minimized by means of the system subject to the invention but it also ensures that the entire thrombi are removed from the vessel. Additionally in previous systems, due to the end disrupting apparatus, the catheter diameter could not reduce much, however, the problem of entering smaller veins has also been overcome by means of the system subject to the invention.

Landscapes

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

Abstract

L'invention concerne un système de cathéter ayant une configuration qui comprend un moteur (11) qui peut fonctionner pour les deux cathéters, des valves unidirectionnelles (13) raccordées au moteur (11), un piège d'aspirateur (9) et un sac de collecte de déchets (10) et qui permet de retirer le thrombus à l'intérieur du vaisseau sans retirer le cathéter externe (3) hors du vaisseau pendant le bouchage, à l'aide d'un seul moteur (11).
PCT/TR2020/050013 2019-01-08 2020-01-08 Cathéter d'aspiration à déplacement télescopique WO2020145928A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2019/00192 2019-01-08
TR2019/00192A TR201900192A2 (tr) 2019-01-08 2019-01-08 İç i̇çe hareketli̇ aspi̇rasyon kateteri̇

Publications (1)

Publication Number Publication Date
WO2020145928A1 true WO2020145928A1 (fr) 2020-07-16

Family

ID=67955897

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2020/050013 WO2020145928A1 (fr) 2019-01-08 2020-01-08 Cathéter d'aspiration à déplacement télescopique

Country Status (2)

Country Link
TR (1) TR201900192A2 (fr)
WO (1) WO2020145928A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11395665B2 (en) 2018-05-01 2022-07-26 Incept, Llc Devices and methods for removing obstructive material, from an intravascular site
US11439799B2 (en) 2019-12-18 2022-09-13 Imperative Care, Inc. Split dilator aspiration system
US11471582B2 (en) 2018-07-06 2022-10-18 Incept, Llc Vacuum transfer tool for extendable catheter
US11504020B2 (en) 2019-10-15 2022-11-22 Imperative Care, Inc. Systems and methods for multivariate stroke detection
US11517335B2 (en) 2018-07-06 2022-12-06 Incept, Llc Sealed neurovascular extendable catheter
US11553935B2 (en) 2019-12-18 2023-01-17 Imperative Care, Inc. Sterile field clot capture module for use in thrombectomy system
US11565082B2 (en) 2020-03-10 2023-01-31 Imperative Care, Inc. Enhanced flexibility neurovascular catheter
US11679194B2 (en) 2021-04-27 2023-06-20 Contego Medical, Inc. Thrombus aspiration system and methods for controlling blood loss
US11819228B2 (en) 2019-12-18 2023-11-21 Imperative Care, Inc. Methods and systems for treating a pulmonary embolism
US11903588B2 (en) 2017-01-06 2024-02-20 Incept, Llc Thromboresistant coatings for aneurysm treatment devices

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160113676A1 (en) * 2014-10-28 2016-04-28 Terumo Kabushiki Kaisha Thrombus aspiration catheter and method of using the same
US20180042623A1 (en) * 2016-08-11 2018-02-15 Stanley Batiste Blood Clot Aspiration Catheter
WO2018217931A1 (fr) * 2017-05-24 2018-11-29 Mivi Neuroscience, Inc. Systèmes de cathéter d'aspiration permettant l'application d'une aspiration efficace dans des vaisseaux distants, en particulier des artères cérébrales

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160113676A1 (en) * 2014-10-28 2016-04-28 Terumo Kabushiki Kaisha Thrombus aspiration catheter and method of using the same
US20180042623A1 (en) * 2016-08-11 2018-02-15 Stanley Batiste Blood Clot Aspiration Catheter
WO2018217931A1 (fr) * 2017-05-24 2018-11-29 Mivi Neuroscience, Inc. Systèmes de cathéter d'aspiration permettant l'application d'une aspiration efficace dans des vaisseaux distants, en particulier des artères cérébrales

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11903588B2 (en) 2017-01-06 2024-02-20 Incept, Llc Thromboresistant coatings for aneurysm treatment devices
US11395665B2 (en) 2018-05-01 2022-07-26 Incept, Llc Devices and methods for removing obstructive material, from an intravascular site
US11850349B2 (en) 2018-07-06 2023-12-26 Incept, Llc Vacuum transfer tool for extendable catheter
US11471582B2 (en) 2018-07-06 2022-10-18 Incept, Llc Vacuum transfer tool for extendable catheter
US11517335B2 (en) 2018-07-06 2022-12-06 Incept, Llc Sealed neurovascular extendable catheter
US11504020B2 (en) 2019-10-15 2022-11-22 Imperative Care, Inc. Systems and methods for multivariate stroke detection
US11633272B2 (en) 2019-12-18 2023-04-25 Imperative Care, Inc. Manually rotatable thrombus engagement tool
US11553935B2 (en) 2019-12-18 2023-01-17 Imperative Care, Inc. Sterile field clot capture module for use in thrombectomy system
US11638637B2 (en) 2019-12-18 2023-05-02 Imperative Care, Inc. Method of removing embolic material with thrombus engagement tool
US11819228B2 (en) 2019-12-18 2023-11-21 Imperative Care, Inc. Methods and systems for treating a pulmonary embolism
US11457936B2 (en) 2019-12-18 2022-10-04 Imperative Care, Inc. Catheter system for treating thromboembolic disease
US11439799B2 (en) 2019-12-18 2022-09-13 Imperative Care, Inc. Split dilator aspiration system
US11565082B2 (en) 2020-03-10 2023-01-31 Imperative Care, Inc. Enhanced flexibility neurovascular catheter
US11679194B2 (en) 2021-04-27 2023-06-20 Contego Medical, Inc. Thrombus aspiration system and methods for controlling blood loss
US11679195B2 (en) 2021-04-27 2023-06-20 Contego Medical, Inc. Thrombus aspiration system and methods for controlling blood loss
US11717603B2 (en) 2021-04-27 2023-08-08 Contego Medical, Inc. Thrombus aspiration system and methods for controlling blood loss
US11931502B2 (en) 2021-04-27 2024-03-19 Contego Medical, Inc. Thrombus aspiration system and methods for controlling blood loss

Also Published As

Publication number Publication date
TR201900192A2 (tr) 2019-02-21

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