Boosting Catheter and Related Systems and Methods

• US 20140276618A1
• Filed: 03/14/2014
• Published: 09/18/2014
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: QXMedical, LLC
• Original Assignee: QXMedical, LLC
• Inventors: Di Caprio, Fernando, Panarello, Gianfranco
• Granted Patent: US 9,144,662 B2
• Time in Patent Office: Days
• US Class Current: 604/510
• CPC Class Codes: A61M 2025/0004 having two or more concentrically arranged tubes for forming a concentric catheter system
• CPC Class Codes: A61M 2025/0063 having means, e.g. stylets, mandrils, rods or wires to reinforce or adjust temporarily the stiffness, column strength or pushability of catheters which are already inserted into the human body
• CPC Class Codes: A61M 2025/0073 Tip designed for influencing the flow or the flow velocity of the fluid, e.g. inserts for twisted or vortex flow
• CPC Class Codes: A61M 2025/0175 having telescopic features, interengaging nestable members movable in relations to one another
• CPC Class Codes: A61M 2025/0681 Systems with catheter and outer tubing, e.g. sheath, sleeve or guide tube
• CPC Class Codes: A61M 25/00 Catheters; Hollow probes dilators A61M29/00; peritoneal catheters A61M1/285; tracheal tubes A61M16/04; for drainage A61M27/00; for uterus, vagina or rectum A61M31/00 ; for measuring or testing A61B; materials for catheters A61L29/00
• CPC Class Codes: A61M 25/0068 Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
• CPC Class Codes: A61M 25/0069 Tip not integral with tube
• CPC Class Codes: A61M 25/0102 Insertion or introduction using an inner stiffening member, e.g. stylet or push-rod

Abstract

The various embodiments herein relate to a boosting catheter for positioning through a conventional guiding catheter into the vasculature of a patient, the boosting catheter having a distal tubular member and a proximal elongated shaft coupled to the distal tubular member.

Claims

1. A boosting catheter comprising:

(a) a distal tube comprising a tubular wall and a tube lumen defined within the tube by the tubular wall; and

(b) a proximal shaft operably coupled to a proximal portion of the distal tube, the proximal shaft comprising a shaft lumen defined in the proximal shaft, wherein the proximal shaft is configured to extend distally into a portion of the tube lumen such that the shaft lumen extends distally past a proximal end of the distal tube.

2. The boosting catheter of claim 1, wherein the proximal shaft further comprises a distal opening in fluid communication with the shaft lumen, whereby the shaft lumen is in fluid communication with the tube lumen.

3. The boosting catheter of claim 2, wherein the shaft lumen is configured to receive fluid such that fluid can be caused to flow distally through the proximal shaft and out of the distal opening.

4. The boosting catheter of claim 2, wherein the proximal shaft is configured to extend distally into a portion of the tubular wall such that the shaft lumen extends distally into the tubular wall and such that the distal opening is in fluid communication with the tube lumen.

5. The boosting catheter of claim 2, wherein the proximal shaft is configured to extend distally into a portion of the tubular wall such that the shaft lumen extends distally into the tubular wall and such that the distal opening is in fluid communication with an area external to the distal tube.

6. The boosting catheter of claim 1, wherein the proximal shaft comprises at least one elongate member disposed within the shaft lumen.

7. The boosting catheter of claim 6, wherein the at least one elongate member defines a lumen within the at least one elongate member.

8. The boosting catheter of claim 6, wherein the at least one elongate member has no lumen.

9. The boosting catheter of claim 6, wherein the at least one elongate member comprises a first elongate member and a second elongate member, wherein the first elongate member is configured to extend distally into a first portion of the tubular wall, and further wherein the second elongate member is configured to extend distally into a second portion of the tubular wall.

10. The boosting catheter of claim 9, further comprising a tube disposed in the proximal shaft.

11. The boosting catheter of claim 1, further comprising at least one support member disposed in the proximal portion of the distal tube.

12. The boosting catheter of claim 1, wherein a distal portion of the proximal shaft is at least one support member disposed in the proximal portion of the distal tube.

13. The boosting catheter of claim 1, wherein the shaft lumen is not in fluid communication with the tube lumen.

14. The boosting catheter of claim 1, wherein the proximal shaft further comprises a distal opening in fluid communication with an area external to the distal tube.

15. A method of using a boosting catheter in combination with a standard guiding catheter to perform a procedure at a predetermined location within the vasculature of a patient, the method comprising:

positioning the standard guiding catheter into a target vessel in the patient;

inserting the boosting catheter into the standard guiding catheter, the boosting catheter comprising;

(a) a distal tube comprising a tubular wall and a tube lumen defined within the tube by the tubular wall; and

(b) a proximal shaft operably coupled to a proximal portion of the distal tube, the proximal shaft comprising a shaft lumen defined in the proximal shaft, wherein the proximal shaft is configured to extend distally into a portion of the tube lumen such that the shaft lumen extends distally past a proximal end of the distal tube;

urging the boosting catheter distally through the standard guiding catheter such that a distal portion of the distal tube extends distally out of the distal end of the standard guiding catheter; and

performing a procedure through the boosting catheter and standard guiding catheter.

16. The method of claim 15, wherein the proximal shaft further comprises a distal opening in fluid communication with the shaft lumen, whereby the shaft lumen is in fluid communication with the tube lumen.

17. The method of claim 16, wherein the performing the procedure further comprises:

introducing a fluid into the shaft lumen at a proximal end of the proximal shaft; and

conducting the fluid distally along the length of the shaft lumen and out of the distal opening.

18. The method of claim 17, further comprising conducting the fluid distally along the length of the guiding catheter and into the shaft lumen.

19. The method of claim 15, wherein the performing the procedure further comprises:

positioning a medical device at the predetermined location through the boosting catheter and guiding catheter;

performing an interventional, diagnostic, or therapeutic procedure using the medical device.

20. The method of claim 15, wherein the performing the procedure further comprises applying suction at the distal end of the distal tube to remove thrombus, emboli, or debris at the predetermined location by applying a vacuum at a proximal end of the standard guiding catheter.