WO2019112219A1 - Cathéter de capture - Google Patents

Cathéter de capture Download PDF

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Publication number
WO2019112219A1
WO2019112219A1 PCT/KR2018/014588 KR2018014588W WO2019112219A1 WO 2019112219 A1 WO2019112219 A1 WO 2019112219A1 KR 2018014588 W KR2018014588 W KR 2018014588W WO 2019112219 A1 WO2019112219 A1 WO 2019112219A1
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WO
WIPO (PCT)
Prior art keywords
catheter
capture
inner catheter
present
tip
Prior art date
Application number
PCT/KR2018/014588
Other languages
English (en)
Korean (ko)
Inventor
천민구
정수진
김준오
이동현
Original Assignee
주식회사 타우피엔유메디칼
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Publication of WO2019112219A1 publication Critical patent/WO2019112219A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • 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
    • 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
    • A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2427—Devices for manipulating or deploying heart valves during implantation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0108—Steering means as part of the catheter or advancing means; Markers for positioning using radio-opaque or ultrasound markers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02—Holding devices, e.g. on the body
    • A61M25/04—Holding devices, e.g. on the body in the body, e.g. expansible
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • 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
    • A61B2017/22049—Means for locking the guide wire in the catheter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
    • A61M2025/0079—Separate user-activated means, e.g. guidewires, guide tubes, balloon catheters or sheaths, for sealing off an orifice, e.g. a lumen or side holes, of a catheter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M2025/0163—Looped catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M2025/0177—Introducing, guiding, advancing, emplacing or holding catheters having external means for receiving guide wires, wires or stiffening members, e.g. loops, clamps or lateral tubes

Definitions

  • the present invention relates to a capture catheter, and more particularly, to a capture catheter for safely guiding a wire from a RVOT to an inferior vein in a mitral valve circlip procedure.
  • Mitral regurgitation refers to a disease in which the mitral valve between the left atrium and the left ventricle in the heart is not properly closed, causing blood to flow backwards in the heart.
  • it refers to a state in which the mitral valve is elongated or torn, or the chordae that fix the valve is broken and the mitral valve is closed completely, so that the blood flow to the systolic phase of the heart is partially reversed from the left ventricle to the left atrium.
  • the blood in the heart must advance from the left ventricle to the aorta through the aortic valve, but if the mitral valve does not work properly, the blood can not travel effectively through the heart to the body.
  • the blood is refluxed, the blood that came out of the left atrium is returned, so the blood in the left atrium is increased and the pressure is higher than in the normal state.
  • Surgical treatment includes performing a valvuloplasty that corrects the mitral valve by opening the chest and cutting the heart, or replacing the valve with a prosthetic valve.
  • Conventional surgical treatment has excellent therapeutic effect, but it is an invasive treatment method that can cause up to 5% of patients with the possibility of death alone.
  • Korean Patent No. 10-1116867 by devising a CSTV tube which can perform a mitral valve regurgitation by inserting a catheter without opening the chest of the chest.
  • a capture catheter is required in order to pull back the large vein, the coronary sinus, and the circulation wire that has entered the right ventricle back into the superior vein. Accordingly, the present inventor has devised a capture catheter in Korean Patent No.
  • the present invention provides a method for easily and safely performing a circulatory wire introduced into the right ventricle through a superior vein and a coronary sinus in a mitral valve circlip procedure It is a study of a device that can be taken out into the inferior vena cava.
  • the present invention has been made in view of the above problems, and it is an object of the present invention to provide a capture catheter for capturing a wire from an RVOT in a mitral valve circling procedure and safely guiding it to the inferior vena cava.
  • Another object of the present invention is to provide a capture catheter for removing foreign matter (guide wire, catheter, thrombus, etc.) in a blood vessel in the field of interventional treatment through blood vessels.
  • a preferred capture catheter includes an inner catheter having a through hole into which a guide wire is inserted, an outer catheter having a through hole for inserting the inner catheter therein, Includes one or more capsules joined to the inner catheter to form an annulus.
  • the capturing is characterized by being an elastic body of a metal material insertable into a body.
  • the capture is characterized by comprising a coupling for coupling with the inner catheter.
  • the cap is configured to be movable upward and downward along the through hole of the external catheter together with the internal catheter when the internal catheter is pushed into the body and pulled out of the body and is narrowed when inserted into the external catheter, .
  • the capture catheter further includes a securing tip coupled to an upper portion of the inner catheter to secure the inner catheter so that it does not fully extend out of the body when the inner catheter is pulled out of the body, .
  • an outer diameter of the center portion of the fixing tip is larger than an inner diameter of the outer catheter and a lower end outer diameter of the fixing tip is smaller than an inner diameter of the outer catheter.
  • the fixing tip is a soft plastic material.
  • the capture catheter further comprises an engaging means, wherein the engaging means is coupled to an upper portion of the inner catheter.
  • the engaging means is in the form of a balloon.
  • the fastening means includes a plurality of fingers arranged in a vertical direction, the fingers having an empty space between the flesh and the flesh, and the internal space being an empty sphere.
  • the engaging means is an elastic body made of a metal insertable into the body.
  • the engaging means is configured to be movable up and down along the through hole of the external catheter together with the internal catheter when the internal catheter is pushed into the body and pulled out of the body. When the internal catheter is inserted into the external catheter, .
  • the capture catheter is characterized in that it includes a radiation-opaque indication to enable positioning in the body.
  • the capture catheter according to the present invention has a hole in the inner catheter, and can enter the body safely along the guide wire.
  • the capture catheter according to the present invention may include an engaging means to block entry into the safe zone and safely enter the body.
  • the capture catheter according to the present invention may include a securing tip to prevent the inner catheter from fully falling out of the body.
  • the capture catheter according to the present invention can capture the wire from the RVOT by the capture and safely guide it to the inferior vein.
  • FIG. 1 is a perspective view of a capture catheter according to a preferred embodiment of the present invention.
  • FIG. 2 is a perspective view of a capture catheter according to another preferred embodiment of the present invention.
  • FIG 3 is a perspective view of a fixing tip according to another preferred embodiment of the present invention.
  • Figure 4 is a perspective view of the capture catheter of Figure 2 when the inner catheter is pulled out of the body.
  • FIG. 5 is a perspective view of a capture catheter according to another preferred embodiment of the present invention.
  • FIG. 6 is a perspective view of the capture catheter of FIG. 5 when the inner catheter is pulled out of the body;
  • FIG. 6 (a) shows the case where only the capture is inserted into the inner catheter; .
  • FIG. 7 is a perspective view showing another capturing catheter according to another preferred embodiment of the present invention.
  • FIG. 7 (a) shows the state before the air is injected into the balloon, and
  • FIG. 7 (a) shows the state before the air is injected into the balloon.
  • FIG. 8 is a perspective view of a capture catheter according to another preferred embodiment of the present invention.
  • FIG. 9 is a flowchart of a method of operation using a capture catheter according to a preferred embodiment of the present invention.
  • FIG. 1 is a perspective view of a capture catheter according to a preferred embodiment of the present invention.
  • a capture catheter according to a preferred embodiment of the present invention includes an inner catheter 10, an outer catheter 20, and a capture 30.
  • the inner catheter 10 has a lumen through which a guide wire passes and a lumen through which the inner catheter 10 passes is formed in the outer catheter 20.
  • the inner catheter 10 is inserted into the through hole of the outer catheter 20 and is movable up and down along the through hole.
  • the inner catheter 10 and the outer catheter 20 may be formed of a synthetic resin material such as a rubber material or a soft plastic material and may be made of a material that is soft and has high ductility and has excellent flexibility and stability Is used.
  • the capture 30 has an annular shape with both ends coupled to the inner catheter 10 and has a snare shape or a loop shape.
  • the capture 30 may be a metal material (SUS304, Nitinol, Titanium, etc.) wire that can be inserted into the body, and may be a shape memory alloy, an elastic body, or a self expandable stent.
  • the capture 30 is composed of one or more, preferably three to four.
  • the capture catheter includes a coupling body 32 for coupling a plurality of the captures 30 and the coupling body 32 includes both ends of a plurality of the captures 30 coupled to the outer peripheral surface of the inner catheter 10 Lt; / RTI >
  • the capture 30 may be inserted into the outer catheter 20 to be narrowed by moving the inner catheter 10 upward or downward or pushing it into the body, And is unfolded.
  • FIG. 2 is a perspective view of a capture catheter according to another preferred embodiment of the present invention.
  • a capture catheter according to another preferred embodiment of the present invention further includes a fixing tip 40 in the capture catheter of FIG.
  • the fixing tip 40 has a through hole formed therein to allow the inner catheter 10 to pass therethrough.
  • the fixation tip 40 is coupled to an upper outer circumferential surface of the inner catheter 10 and has an inner circumferential surface that is tightly coupled to the outer circumferential surface of the inner catheter 10.
  • FIG 3 is a perspective view of a fixing tip according to another preferred embodiment of the present invention.
  • the fixing tip 40 will be described in more detail.
  • the fixing tip 40 is preferably made of a soft plastic material, but is not limited thereto.
  • the outer diameter L1 of the fixing tip 40 is larger than the inner diameter L3 of the outer catheter 20 and the outer diameter L2 of the lower end of the fixing tip 40 is larger than the inner diameter L3 So that the central portion of the fixing tip 40 is caught by the outer catheter 20 so that the inner catheter 10 can be completely fixed to the inner catheter 10 do.
  • FIG. 4 is a perspective view of the inner catheter of FIG. 2 when the inner catheter is pulled out of the body.
  • the capture 30 captures the circular wire 70 and is inserted into the outer catheter 20, Is not inserted into the external catheter (20). Accordingly, the inner catheter 10 is prevented from completely separating from the outer catheter 20, and the outer catheter 20 is removed from the in vitro passage through the inferior vein to guide the circular large wire 70 into the inferior vein do.
  • FIG. 5 is a perspective view of a capture catheter according to another preferred embodiment of the present invention
  • FIG. 6 is a perspective view when the inner catheter of FIG. 5 is pulled out of the body
  • (B) shows the case where the capture and the engaging means are inserted into the inner catheter.
  • a capture catheter according to another preferred embodiment of the present invention further comprises a catching means 50 in the capture catheter of FIG.
  • the engaging means 50 is coupled to the upper outer circumferential surface of the inner catheter 10 and may be in the form of a balloon or an elastic sphere.
  • the locking means 50 is for passing the capture catheter into the safe zone of the tricuspid membrane when the capture catheter is inserted into the right ventricle through the inferior vena cava, tricuspid membrane.
  • Said safe zone refers to where the capture catheter can safely pass through the tricuspid valve to the site of the valve leaflet, where there is no chordae, to the right ventricle.
  • the engaging means 50 moves to a place other than the safe zone, the engaging means 50 is prevented from moving any further.
  • Figs. 4 and 5 show the case where the engaging means 50 is an elastic sphere.
  • the locking means 50 includes a plurality of fingers installed in a vertical direction, and both ends of the plurality of fingers are coupled to the inner catheter 20.
  • the space between the flesh and the flesh has an empty space, and the internal space has an empty sphere.
  • the engaging means 50 may be a metal material (SUS304, Nitinol, Titanium, etc.) that can be inserted into the body and may be a shape memory alloy, an elastic body, or a self expandable stent.
  • the engaging means 50 When the inner catheter 10 is pulled out of the body, the engaging means 50 is inserted into the outer catheter 20 and is narrowed. When the inner catheter 10 is pushed into the body, It is unfolded.
  • FIG. 7 is a perspective view showing another capturing catheter according to another preferred embodiment of the present invention.
  • FIG. 7 (a) shows the state before the air is injected into the balloon, and
  • FIG. 7 (a) shows the state before the air is injected into the balloon.
  • a capture catheter includes a balloon-shaped engaging means 52, which is another type of engaging means, in the capture catheter of FIG.
  • the balloon engaging means 52 is connected to the outer circumferential surface of the inner catheter 10 and is in the shape of a balloon which is inflated when air is injected from the outside.
  • an air injection tube 54 for injecting air into the balloon-type fastening means 52 is coupled to the inner catheter 10, and the upper end of the air injection tube 54 is connected to the inner catheter 10).
  • the air injected into the air injection tube 54 is transmitted to the balloon type engaging means 52 since a hole is formed in the inner catheter 10 abutting the upper end of the air injection tube 54 .
  • FIG. 7 (a) shows a state before air is injected into the balloon-type engaging means 52
  • Fig. 7 (b) shows a state after air is injected into the balloon-type engaging means 52.
  • Fig. When the capture catheter is inserted into the body, air is injected into the balloon-shaped engaging means 52 and inserted into a state other than the safe zone as shown in FIG. 7 (b) Preventing the capture catheter from entering the safe zone safely.
  • FIG. 8 is a perspective view of a capture catheter according to another preferred embodiment of the present invention.
  • a capture catheter according to another preferred embodiment of the present invention further includes a fixing tip 40 and an engaging means 50 in the capture catheter according to the preferred embodiment of the present invention in FIG.
  • the fastening tip 40 and the fastening means 50 are coupled to the upper portion of the internal catheter 10 and the fastening tip 40 is engaged in a spaced apart position from the upper end of the fastening means 50.
  • the fastening tip 40 and the fastening means 50 are as described above in FIGS.
  • the capture catheter according to the present invention can prevent entry of the inner catheter completely out of the safe zone, and can securely enter the body.
  • FIG. 9 is a flowchart of a method of operation using a capture catheter according to a preferred embodiment of the present invention.
  • inserting the capture catheter into the body (S10) is a step of inserting the capture catheter according to the preferred embodiment of the present invention into the inferior vein, the right atrium, and the right ventricle.
  • the guide wire 60 Before inserting the capture catheter, the guide wire 60 is inserted into the body.
  • the guide wire 60 guides the path through which the capture catheter is inserted into the body, and is inserted into the lower vein, the right atrium, and the right ventricle.
  • the inner catheter 10 of the capture catheter inserts the guide wire 60 and moves along the guide wire 60 through the inferior vein to the right atrium and the right ventricle.
  • the catheter is passed through the tricuspid membrane, and includes a catching means 50 for safely passing the capture catheter to the safe zone without the leaflet of the tricuspid valve and the chordae of the tricuspid valve.
  • the retaining means 50 can be prevented from moving further by being caught by the retaining means 50 when moving to a place other than a safe zone and the capture catheter can be safely inserted into the body without damaging other parts of the body. .
  • the following is a step (S20) of capturing a circle large wire using a capture catheter.
  • the capture catheter pushes the inner catheter 10 toward the body to capture the circumferential wire 70 located in the right ventricle, causing the capture 30 to protrude out of the outer catheter 20 to unfold.
  • the capillary 30 is narrowed by pulling the inner catheter 10 in the outward direction by placing the circular large wire 70 in the extended capture 30 and capturing the circular large wire 70, And is inserted into the catheter 20.
  • the capture catheter is pulled out of the body (S30).
  • the upper portion of the inner catheter 10 is coupled with a fixing tip 40 to prevent the inner catheter 10 from completely escaping from the body and being separated from the outer catheter 20.
  • the inner catheter 10 is inserted into the outer catheter 20 to the position where the securing tip 40 is engaged, The large wire 70 is pulled out of the body through the insertion path of the capture catheter to guide the large wire 70 to the inferior vein.
  • the capture catheter according to the present invention can capture the wire from the RVOT by the capture and safely guide it to the inferior vein.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Hematology (AREA)
  • Surgery (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

La présente invention concerne un cathéter de capture et, plus particulièrement, un cathéter de capture pour guider en toute sécurité un fil sortant du tractus de sortie ventriculaire droit (RVOT) vers la veine cave inférieure pendant une procédure d'annuloplastie de cerclage. Un cathéter de capture souhaitable selon la présente invention comprend : un cathéter interne ayant un trou formé à l'intérieur de celui-ci, dans lequel un fil-guide est inséré ; un cathéter externe ayant un trou formé à l'intérieur de celui-ci, dans lequel le cathéter interne est inséré ; et une ou plusieurs captures dont les deux extrémités sont couplées au cathéter interne pour former une forme annulaire.
PCT/KR2018/014588 2017-12-08 2018-11-26 Cathéter de capture WO2019112219A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2017-0168197 2017-12-08
KR1020170168197A KR102115426B1 (ko) 2017-12-08 2017-12-08 캡쳐 카테터

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WO2019112219A1 true WO2019112219A1 (fr) 2019-06-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115005927A (zh) * 2022-07-14 2022-09-06 攀钢集团总医院 一种泌尿科用结石抓取器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102249913B1 (ko) * 2019-08-05 2021-05-10 계명대학교 산학협력단 혈전 포집용 그물망과 혈전 흡입 카테터를 이용한 하지정맥 혈전 제거기 및 그 이용 방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090112244A1 (en) * 2007-10-25 2009-04-30 Franz Freudenthal Snare mechanism for surgical retrieval
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