CN115023189A - Interval crossing system - Google Patents

Interval crossing system Download PDF

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Publication number
CN115023189A
CN115023189A CN202080086500.5A CN202080086500A CN115023189A CN 115023189 A CN115023189 A CN 115023189A CN 202080086500 A CN202080086500 A CN 202080086500A CN 115023189 A CN115023189 A CN 115023189A
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CN
China
Prior art keywords
distal end
main tube
wire
lumen
proximal end
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.)
Pending
Application number
CN202080086500.5A
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Chinese (zh)
Inventor
金埈弘
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.)
Tau PNU Medical Co Ltd
Original Assignee
Tau PNU Medical Co Ltd
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 Tau PNU Medical Co Ltd filed Critical Tau PNU Medical Co Ltd
Priority claimed from PCT/US2020/064964 external-priority patent/WO2021119636A1/en
Publication of CN115023189A publication Critical patent/CN115023189A/en
Pending legal-status Critical Current

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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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026—Multi-lumen catheters with stationary elements
    • 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
    • A61M25/0136—Handles therefor
    • 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
    • A61M25/0138—Tip steering devices having flexible regions as a result of weakened outer material, e.g. slots, slits, cuts, joints or coils
    • 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
    • A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00238—Type of minimally invasive operation
    • A61B2017/00243—Type of minimally invasive operation cardiac
    • A61B2017/00247—Making holes in the wall of the heart, e.g. laser Myocardial revascularization
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A61B2017/003—Steerable
    • A61B2017/00318—Steering mechanisms
    • A61B2017/00323—Cables or rods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00358—Snares for grasping
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00743—Type of operation; Specification of treatment sites
    • A61B2017/00778—Operations on blood vessels
    • A61B2017/00783—Valvuloplasty
    • 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
    • A61M2025/0004—Catheters; Hollow probes having two or more concentrically arranged tubes for forming a concentric catheter system
    • 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
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026—Multi-lumen catheters with stationary elements
    • A61M2025/0037—Multi-lumen catheters with stationary elements characterized by lumina being arranged side-by-side
    • 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/12—Blood circulatory system
    • A61M2210/125—Heart
    • 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
    • A61M25/0082—Catheter tip comprising a tool

Abstract

A space traversing system is provided for cerclage surgery for treating a dysfunctional heart. The cerclage spacing crossing system includes a piercing catheter and a capture catheter. The puncture catheter includes a first lumen for insertion of a guide wire therein. The coil member is disposed at a distal portion of the piercing catheter. The distal end of the pull wire is connected to a portion of the distal end of the coil member. The proximal end of the pull wire extends to a portion of the distal end of the puncture catheter. The pull wire is configured to bend the distal portion of the puncture catheter inward. The capture catheter includes a first lumen into which the first guide wire is inserted and a second lumen into which the second guide wire is inserted. The distal end of the second wire has a snare in which the distal portion is deflectable.

Description

Interval crossing system
RELATED APPLICATIONS
This application claims united states provisional patent application 62/948197 (filed 12/13/2019) and united states patent application 63/125346 (filed 12/14/2020), the contents of which are incorporated herein by reference in their entirety.
Technical Field
The present invention relates generally to methods of treating heart valve insufficiency, and more particularly to a space traversing system and methods of using a target capture catheter and a space penetrating catheter in the method.
Background
In cerclage procedures for treating valve insufficiency, accurate positioning of the Right Ventricular Outflow Tract (RVOT) is required. However, in the fluoroscope of this process, it is not possible to accurately locate RVOT. Second, even if the RVOT is accurately found, the catheter needs to be stabilized at the RVOT and maintain its position without moving throughout the systole. Finally, since some patients do not have a septal vein, accurate puncture through the IVS directly from the coronary sinus is required. Furthermore, because it is sometimes difficult to access the septal vein with a guide wire, there is a need for a method and system to access the RVOT directly from the coronary sinus through IVS puncture, without using the septal vein as a pathway.
Disclosure of Invention
According to one aspect of the invention, the piercing catheter includes a first lumen for inserting a guide wire therein. The coil member is disposed at a distal portion of the piercing catheter. The distal end of the pull wire is connected to a portion of the distal end of the coil member. The proximal end of the pull wire extends to a portion of the distal end of the puncture catheter. The pull wire is configured to bend a distal portion of the puncture catheter inward to have an angled configuration.
According to one aspect of the invention, the capturing catheter comprises a first lumen for inserting the first guide wire therein and a second lumen for inserting the second guide wire therein. The distal end of the second wire has a snare in which a portion of the distal end has a deflectable end.
According to one aspect of the invention, a cerclage spacing traversal system includes a piercing catheter and a capture catheter.
Drawings
Fig. 1 shows a puncturing device.
Fig. 2 shows the distal part of the puncturing device.
Fig. 3 shows the distal part of the puncturing device.
Fig. 4 shows a side view of the puncturing device.
Fig. 5 shows a side view of the puncturing device.
Fig. 6 shows a side view of the puncturing device.
Fig. 7 shows a bendable part of the puncturing device.
Fig. 8 shows a bendable part of the puncturing device.
Fig. 9 shows the puncture device in a coronary vein.
Fig. 10 shows the puncture device in a coronary vein.
Fig. 11 shows the puncture device in a coronary vein.
Fig. 12 shows the puncturing device puncturing the target site.
Fig. 13 shows the puncturing device under imaging analysis.
Fig. 14 shows the puncturing device in operation.
Fig. 15 shows the puncturing device in operation.
Fig. 16 shows the puncturing device in operation.
Fig. 17 shows a cross-sectional view of the puncturing device.
Fig. 18 shows a cross-sectional view of the puncturing device.
Fig. 19 shows a cross-sectional view of the puncturing device and the lumen.
Figure 20 shows a capture device.
Fig. 21 shows a hub of a capture device.
Fig. 22 shows a top view and a side view of the capture device.
Figure 23 shows a cross-sectional view of the capture device.
Figure 24 shows a capture device at a target site.
Figure 25 illustrates the target site of the RVOT interval.
Figure 26 shows the catch at the RVOT interval.
Fig. 27 shows the capture device capturing the puncture wire.
Fig. 28 shows a puncture wire passing through the snare of the capture catheter.
Fig. 29 shows an actual image of the stabilizing wire and the target snare.
Figure 30 shows the entirety of the space crossing system.
Detailed Description
Bendable puncture device
The bendable piercing apparatus 10 in the embodiment of the present invention will be described with reference to the drawings. The flexible puncture device 10 of the present embodiment is a tubular medical instrument used when inserted into a patient.
Fig. 1 shows a puncture device for a space traversing system (spatial traversing system). The deflectable lancing device 10 includes a flexible tubular multi-lumen tube (main tube) 20 and a deflection member 30. The flexible tubular multi-lumen tube 20 includes a distal end 20a, a proximal end 20b, and a bendable member 22. Bendable member 22 is disposed at distal end 20a of main tube 20 and is capable of being bent. The deflection member 30 is fixed to the proximal end 20b of the main tube 20 and is used to manipulate (deflect) the bendable member 22.
Main pipe 20
The main tube 20 is a flexible multi-lumen tube that can be inserted into the coronary sinus (coronary sinus). The main tube 20 has a distal end 20a and a proximal end 20 b. The main tube 20 includes a first lumen 26. The first lumen 26 has a distal end 26a and a proximal end 26b, the distal end 26a and the proximal end 26b being open to both the distal end 20a and the proximal end 20b of the main tube 20. The proximal end 20b of the main tube 20 is fixed to the deflection member 50 (operation member). The first lumen 26 is configured for insertion of a guide wire 42 or a puncture wire 44 therein.
First side hole 22 and second side hole 24
The main tube 20 also includes a first side bore 22 and a second side bore 24. The first side hole 22 and the second side hole 24 are each formed at a portion of the distal end of the main tube 20. The main tube 20 also includes a second lumen 28. The second lumen 28 has a distal end 28a and a proximal end 28 b. The distal end 28a of the second lumen 28 opens to the second side aperture 24. The first side hole 22 and the second side hole 24 are configured for insertion of a deflection wire (operation wire) therein.
Second lumen 28
The main tube 20 also includes a second lumen 28. The second lumen 28 has a distal end 28a and a proximal end 28 b. The distal end 28a of the second lumen 28 opens to the second side aperture 24. The proximal end 28b of the second lumen extends to the deflection member 50. The second lumen 28 is configured for insertion of a deflection wire 40 therein.
Deflection wire 40
The main tube 20 uses the deflection wire 40 to bend the distal end 20a of the main tube 20. The deflection wire 40 has a distal end 40a and a proximal end 40 b. The distal end 40a is connected to the distal end 20a of the main tube 20. The proximal end 40b is connected to a deflection member 50. The portion of the deflection line 40 defined between the first side aperture 22 and the second side aperture 24 is exposed as shown.
Coil component 30
The main tube 20 further includes a coil assembly 30 that supports the puncture site. Coil member 30 has a distal end 30a and a proximal end 30 b. The distal end 30a is disposed adjacent the first side aperture 22 of the primary tube 20 and the proximal end 30b is disposed adjacent the second side aperture 24 of the primary tube 20. The coil member 30 is configured to surround the first lumen 26 as a spiral shape to reinforce the first lumen 26. The coil member 30 and the first lumen 26 have a common axis, with the coil member 30 coaxially flexing when the main tube 20 is flexed to support the puncture site.
Mark belt 32
The parent tube 20 also includes at least one marker band 32 for imaging analysis. As shown, the distal end 20a of the main tube 20 is provided with a marker band 32, the marker band 32 being made of a material that appears on the X-ray transmission image. The plurality of marker bands 32 allow the operator to confirm the degree of bending (the amount of degree of bending) of the main tube 20 before performing puncture by referring to the X-ray penetration image.
Bendable member 34
Bendable member 34 is disposed in main tube 20 and is configured to be bendable. Bendable member 34 has a distal end 34a and a proximal end 34 b. In one example of this embodiment, the bendable member 34 is preferably disposed between the first side hole 22 and the second side hole 24 of the main tube 20. It will be appreciated that this arrangement may vary depending on the patient anatomy. As shown, the deflection line 40 is preferably exposed on the area defined between the first side aperture 22 and the second side aperture 24.
Wire set for operation
The main pipe 20 operates using a set of wires. The first lumen 26 is configured for insertion of a guide wire 42 therein. The guide wire 42 may be exchanged with the puncture wire 44 when the parent tube 20 is positioned to the target location. The second lumen 28 is configured for insertion of a puncture wire 44 therein. The distal end 40a of the deflection wire 44 is connected to the distal end 20a of the main tube 20 and exits through the first aperture 22. The deflection wire 44 then returns through the second aperture 24 and extends through the second lumen 26. The proximal end 40b of the deflection wire is connected to the deflection member 50. Prior to lancing, the operator pulls the lancing wire 44 through the deflection member 50 to find the optimal lancing angle for the flexible member 34.
Deflection member 50
The bendable puncturing device 10 further includes a deflection member 50 for deflecting the bendable member 34. As shown, the deflection member 50 includes a distal end 50a and a proximal end 50 b. The deflection member 50 includes a knob 52, a slide 52, and a hub 56 to perform the deflection operation. The deflection member 50 also includes a lumen 58 for insertion of the guide wire 42 or the puncture wire 44 through the hub 56. The lumen 58 is open for communication relative to the first lumen 26.
Knob 52 and slider 52
The knob 52 operates a slider 54. As shown, the slider 54 is moved back and forth (back and forth) by rotating the knob 52. The proximal end 40b is connected to the slider 54 so that the slider can pull or push the operating wire 40. For example, the operator may adjust the angle of penetration of the bendable member 34 by rotating the knob 42.
Hub 56
The hub 56 is used to insert the guide wire 42 or the puncture wire 44 therein during the procedure. The hub 56 is open relative to the lumen 58 of the deflection member, and the lumen 58 of the deflection member is also open relative to the first lumen 26 of the main tube 20. It should be understood that various types of hubs may be used depending on the particular process.
Capture device 100
A capture device 100 for a space traversing system is illustrated. The capture device 100 includes a flexible tubular multi-lumen tube (main tube) 120. Capture device 100 also includes a deflection member 150 for bending parent pipe 120.
Main pipe 120
The main tube 120 is a flexible multi-lumen tube for capture. The main tube 120 has a distal end 120a and a proximal end 120 b. Proximal end 120b of main tube 120 is secured to deflection member 150. The first lumen 124 is configured for insertion of a guide wire 140 (or stabilizing wire) therethrough.
Side hole 122
The main tube 120 includes a side bore 122. The side hole 122 is formed on the main tube 120. Side hole 122 is configured for insertion of a stabilizing wire 142 therethrough.
First lumen 124 for snare wire 140
The main tube 120 also includes a first lumen 124. The first lumen 124 has a distal end 124a and a proximal end 124b, each open relative to the distal end 120a and the proximal end 122a, respectively, of the main tube 120. The first lumen 124 is configured for insertion of a snare wire 140 therethrough.
A second lumen 126 for attaching a guide wire 142
The main tube 120 also includes a second lumen 126. The second lumen 126 has a distal end 126a and a proximal end 126b, open to each of the distal end 120a and the proximal end 122a, respectively, of the main tube 120. The second lumen 126 is configured for insertion of a guide wire 142 therethrough.
Third lumen 128 for deflection wire 144
The main tube 120 also includes a third lumen 126. The third lumen 128 has a distal end 128a and a proximal end 128 b. The third lumen 126 is configured for insertion of a steering wire 144 therethrough.
Fourth lumen 130 for stabilizing wire 146
The main tube 120 also includes a fourth lumen 130. The fourth lumen 130 has a distal end 130a and a proximal end 130 b. The fourth lumen 126 is configured for insertion of a stabilization wire 146 therethrough. The distal end 130a of the fourth lumen 130 is open relative to the side hole 122 of the main tube 120.
Deflection anchor 132
The main tube 120 also includes a deflection anchor 132 for bending the main tube 120. A deflection anchor 132 is disposed in a portion of the distal end of the main tube 120. As shown, the deflection anchor 132 is X-shaped, longitudinally partially surrounding the first lumen 124 and the second lumen 126. The deflection anchor 132 includes an anchor connector 132a for connecting to the distal end 144a of the operating wire 144.
Marker band 134
Parent tube 120 also includes at least one marker band 134 for imaging analysis. As shown, the distal end 120a of the main tube 120 is provided with a marker band 134, the marker band 134 being made of a material that can be rendered on an X-ray transparent image. The plurality of marker bands 134 allow the operator to confirm the bending of the main tube 120 prior to performing the puncture with reference to the X-ray transmission image.
Bendable member 136
The main tube 120 further includes a bendable member 136, the bendable member 136 being defined in a portion of the distal end of the main tube 120. In one example of this embodiment, the bendable members 136 are made in a woven structure. The bendable member 136 can be bent by operating the handle member 150 of the puncture device 100.
Loop wire 140
The parent tube 120 captures the target wire using the snare wire 140. The snare wire 140 has a distal end 140a and a proximal end 140 b. As shown, the distal end 140a is connected to a snare 140 c. The proximal end 140b extends through the first lumen 124 to the handle member 150.
Guide wire 142
The main tube 120 also uses a guide wire 142. The guidewire 142 has a distal end 142a and a proximal end 142 b. The guidewire 142 extends through the second lumen 126 from the distal end 120a to the proximal end 120b of the main tube 120.
Deflection wire 144
The parent pipe 120 also uses the deflection line 142 to bend the parent pipe 120. The deflection wire 144 has a distal end 144a and a proximal end 144 b. The distal end 144a is connected to the deflection anchor 132 to bend the main tube 120. The proximal end 114b is connected to the handle member 150 for deflection.
Stabilizing wire 146
The parent tube 120 also uses the stabilizing wire 146 to position the parent tube 120 to the target location. The stabilizing wire 146 has a distal end 146a and a proximal end 146 b. A stabilizing wire 146 extends through the side aperture 122 and through the fourth lumen 130 to the handle member.
Deflection member 150
The capture device 100 includes a deflection member 150 for deflecting the bendable member 136. Deflection member 150 has a distal end 150a and a proximal end 150b as shown. The deflection unit 150 includes a knob 152, a slider 152, and a hub 156 to perform a deflection operation. The first lumen 124, the second lumen 126, and the fourth lumen 130, respectively, pass through the deflection member 150 and are connected to the hub 156.
Knob 152 and slider 154
The knob 152 operates a slider 154. As shown, the slider 154 is moved back and forth by rotating the knob 152. The proximal end 140b of the deflection wire 144 is connected to the slider 154 so that the slider can pull or push the deflection wire 144. For example, the operator may adjust the capture angle of the bendable member 136 by rotating the knob 142.
Hub 156
Hub 156 of deflection unit 150 has a plurality of ports. Each port of the hub is used to insert the snare wire 140, the guide wire 142, and the stabilizing wire 146 during the procedure.

Claims (8)

1. A bendable catheter, comprising:
a flexible tubular main tube comprising a distal end and a proximal end, a first lumen extending between the distal and proximal ends and into which a guide wire is inserted,
the main tube includes a first side aperture formed at a distal end, the main tube has a second lumen open to the side aperture, the main tube includes a deflection wire, the deflection wire has a distal end and a proximal end, the distal end of the deflection wire is connected to the distal end of the main tube, the deflection wire is configured to pass through an outer surface of the main tube and into the first side aperture, the proximal end of the deflection wire is configured to be pulled or pushed to bend the distal end of the main tube.
2. The bendable catheter also includes a coil member disposed in the distal end of the main tube.
3. The bendable catheter further includes a deflection member disposed in the proximal end of the main tube.
4. The bendable catheter further includes a second side hole formed at the distal end of the main tube.
5. The bendable catheter further includes at least one marker band disposed at the distal end of the main tube.
6. A bendable catheter, comprising: a flexible tubular main tube having a distal end and a proximal end, a first lumen extending between the distal end and the proximal end for insertion of a guide wire, the main tube including a first side hole formed at the distal end, the main tube having a second lumen leading to the side hole, the main tube having a deflection wire having a distal end and a proximal end, the main tube having an anchor disposed in the distal end of the main tube, the distal end of the deflection wire being connected to the anchor, the proximal end of the deflection wire being configured to be pulled or pushed to bend the distal end of the main tube.
7. The bendable catheter also includes a marker band disposed at the distal end of the main tube.
8. A space traversing system, comprising:
a puncture catheter comprising a flexible tubular main tube having a distal end and a proximal end, a first lumen extending between the distal end and the proximal end for insertion of a guide wire, the main tube having a first side hole formed at the distal end, the main tube having a second lumen opening to the side hole, the main tube having a deflection wire, the deflection wire having a distal end and a proximal end, the distal end of the deflection wire being connected to the distal end of the main tube, the deflection wire being configured to pass through the outer surface of the main tube and into the first side hole, the proximal end of the deflection wire being configured to pull or push the distal end of the curved main tube; and
a capture catheter comprising a flexible tubular main tube having a distal end and a proximal end, a first lumen extending between the distal end and the proximal end for insertion of a guide wire, the main tube having a first side hole formed at the distal end, the main tube having a second lumen opening to the side hole, the main tube having a deflection wire, the deflection wire having a distal end and a proximal end, the main tube having an anchor disposed at the distal end of the main tube, the distal end of the deflection wire being connected to the anchor, the proximal end of the deflection wire being configured to be pulled or pushed to bend the distal end of the main tube.
CN202080086500.5A 2019-12-13 2020-12-14 Interval crossing system Pending CN115023189A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962948197P 2019-12-13 2019-12-13
US62/948,197 2019-12-13
PCT/US2020/064964 WO2021119636A1 (en) 2019-12-13 2020-12-14 Septalcrossingsystem

Publications (1)

Publication Number Publication Date
CN115023189A true CN115023189A (en) 2022-09-06

Family

ID=83064926

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202080086500.5A Pending CN115023189A (en) 2019-12-13 2020-12-14 Interval crossing system

Country Status (2)

Country Link
EP (1) EP4072433A4 (en)
CN (1) CN115023189A (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5917290Y2 (en) * 1979-06-04 1984-05-21 オリンパス光学工業株式会社 High frequency knife for endoscope
US7763012B2 (en) * 2003-09-02 2010-07-27 St. Jude Medical, Cardiology Division, Inc. Devices and methods for crossing a chronic total occlusion
US7553305B2 (en) * 2005-06-09 2009-06-30 Enpath Medical, Inc. Push-pull wire anchor
US20070225681A1 (en) * 2006-03-21 2007-09-27 Medtronic Vascular Catheter Having a Selectively Formable Distal Section
US9345539B2 (en) * 2007-08-17 2016-05-24 Olympus Corporation Treatment device
US8029461B2 (en) * 2008-01-11 2011-10-04 Joseph Michael Thielen Closable loop access guide catheter

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EP4072433A4 (en) 2024-03-13

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Address after: Busan, Korea

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Applicant before: Tau-pnu Medical Ltd.

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