IP Library › Granted Patent US 12,728,242
Granted Patent B2
US 12,728,242 · App. 17/574,497 · Granted Sep 8, 2026

Systems and methods for percutaneous drainage

Inventors: Elie Rashid Balesh (El Paso, TX); Matthew Isaac Pena (Houston, TX); Linh Quoc Vu (Manvel, TX); Roi Jeric Garcia Bautista (Houston, TX)
Assignee: NoviRad, Inc.
A61M27/00A61M1/912A61M1/915A61M1/96A61M1/98
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Quick Facts
Patent No.
US 12,728,242
App. No.
17/574,497
Granted
Sep 8, 2026
Kind
B2
Abstract

System for percutaneous drainage of a drainage site includes a catheter, a drain tube, a first pump, a flush tube, a second pump, and a controller. The catheter includes a drain lumen defined by a first portion of a catheter wall and a septum, and a flush lumen defined by a second portion of the catheter wall and the septum. The flush lumen is separated from the drain lumen by the septum. The septum has at least one septal hole disposed therein such that the drain lumen and the flush lumen are in communication via the at least one septal hole. The catheter wall has at least one wall hole disposed therein such that the drain lumen is in communication with the drainage site when the distal end portion of the catheter is placed within the drainage site.

Claims (80)

1 . A system for percutaneous drainage of a drainage site, comprising:

a catheter having

a catheter wall extending from a proximal end portion of the catheter to a distal end portion of the catheter, the distal end portion of the catheter configured for placement within the drainage site,

a septum disposed within the catheter wall and extending from a proximal end portion of the catheter to a distal end portion of the catheter, wherein the distal end portion includes a distal tip of the catheter, the septum extending completely to the distal tip of the catheter;

a drain lumen defined by a first portion of the catheter wall and the septum, and extending from the proximal end portion of the catheter to the distal end portion of the catheter, and

a flush lumen defined by a second portion of the catheter wall and the septum, and extending from the proximal end portion of the catheter to the distal end portion of the catheter, wherein the flush lumen is separated from the drain lumen by the septum;

a drain tube having a first end portion coupled to the drain lumen at the proximal end portion of the catheter, and a second end portion coupled to a waste collection container;

a first pump coupled to the drain tube between the first end portion of the drain tube and the second end portion of the drain tube;

a flush tube having a first end portion coupled to the flush lumen at the proximal end portion of the catheter, and a second end portion coupled to a flush material container having a flush material disposed therein;

a second pump coupled to the flush tube between the first end portion of the flush tube and the second end portion of the flush tube; and

a controller coupled to the first pump and the second pump for controlling the first pump and the second pump;

wherein the septum has a plurality of septal holes in the septum along a longitudinal axis of the catheter, the plurality of septal holes disposed proximate to the distal end portion of the catheter such that the drain lumen and the flush lumen are in communication via the plurality of septal holes;

wherein the catheter wall has a plurality of wall holes in the catheter wall along the longitudinal axis of the catheter, the plurality of wall holes disposed proximate to the distal end portion of the catheter such that the drain lumen is in communication with the drainage site when the distal end portion is placed within the drainage site;

wherein each of the wall holes of the plurality of wall holes has a corresponding septal hole of the plurality of septal holes; and

wherein each wall hole is aligned with the corresponding septal hole such that each wall hole is positioned between 1 mm and 6.5 mm of the corresponding septal hole along the longitudinal axis.

2 . The system of claim 1 , wherein a volume of the drain lumen is equal to a volume of the flush lumen.

3 . The system of claim 1 , wherein a volume of the drain lumen is greater than the volume of the flush lumen.

4 . The catheter of claim 1 , wherein the plurality of septal holes comprises a distal hole having a first diameter and a proximal hole having a second diameter, the second diameter being different than the first diameter.

5 . The system of claim 4 , wherein the second diameter is smaller than the first diameter.

6 . The system of claim 1 , further comprising a pressure sensor coupled to the drain tube and the controller.

7 . The system of claim 1 , further comprising a housing having the first pump, the second pump, and the controller disposed therein.

8 . The system of claim 1 , further comprising an injection port coupled to the flush tube.

9 . The system of claim 8 , further comprising a syringe coupled to the injection port by a third tube.

10 . The system of claim 8 , further comprising a third pump coupled to the injection port by a third tube.

11 . A catheter for percutaneous drainage of a drainage site, comprising:

a catheter wall extending from a proximal end portion of the catheter to a distal end portion of the catheter, the distal end portion of the catheter configured for placement within the drainage site;

a septum disposed within the catheter wall and extending from the proximal end portion of the catheter to the distal end portion of the catheter;

wherein the distal end portion includes a distal tip of the catheter, the septum extending completely to the distal tip of the catheter;

a drain lumen defined by a first portion of the catheter wall and the septum, and extending from the proximal end portion of the catheter to the distal end portion of the catheter; and

a flush lumen defined by a second portion of the catheter wall and the septum, and extending from the proximal end portion of the catheter to the distal end portion of the catheter, wherein the flush lumen is separated from the drain lumen by the septum;

wherein the septum has at least one septal hole disposed therein proximate to the distal end portion of the catheter such that the drain lumen and the flush lumen are in communication via the at least one septal hole;

wherein the catheter wall has at least one wall hole disposed therein proximate to the distal end portion of the catheter such that the drain lumen is in communication with the drainage site when the distal end portion is placed within the drainage site;

wherein each wall hole has a corresponding septal hole; and

wherein each wall hole is aligned with each corresponding septal hole such that each wall hole is positioned between 1 mm and 6.5 mm of the corresponding septal hole along the longitudinal axis.

12 . The catheter of claim 11 , wherein a volume of the drain lumen is equal to a volume of the flush lumen.

13 . The catheter of claim 11 , wherein a volume of the drain lumen is greater than the volume of the flush lumen.

14 . The catheter of claim 11 , wherein the at least one septal hole comprises a plurality of septal holes.

15 . The catheter of claim 11 , wherein the at least one septal hole comprises a distal hole having a first diameter and a proximal hole having a second diameter, the second diameter being different than the first diameter.

16 . The catheter of claim 15 , wherein the second diameter is smaller than the first diameter.

17 . The catheter of claim 11 , wherein the at least one septal hole and the at least one wall hole are offset.

18 . A method of percutaneous drainage of a drainage site, comprising:

inserting a catheter into the drainage site, the catheter including

a catheter wall extending from a proximal end portion of the catheter to a distal end portion of the catheter, the distal end portion of the catheter configured for placement within the drainage site;

a septum disposed within the catheter wall and extending from a proximal end portion of the catheter to a distal end portion of the catheter;

a drain lumen defined by a first portion of the catheter wall and the septum, and extending from the proximal end portion of the catheter to the distal end portion of the catheter; and

a flush lumen defined by a second portion of the catheter wall and the septum, and extending from the proximal end portion of the catheter to the distal end portion of the catheter, wherein the flush lumen is separated from the drain lumen by the septum;

wherein the septum has at least one septal hole disposed therein proximate to the distal end portion of the catheter such that the drain lumen and the flush lumen are in communication via the at least one septal hole;

wherein the catheter wall has at least one wall hole disposed therein proximate to the distal end portion of the catheter such that the drain lumen is in communication with the drainage site when the distal end portion is placed within the drainage site;

wherein each of the wall holes has a corresponding septal hole; and

wherein each wall hole is aligned with the corresponding septal hole such that each wall hole is positioned between 1 mm and 6.5 mm of the corresponding septal hole along the longitudinal axis;

withdrawing fluid from the drainage site via the drain lumen;

identifying an occlusion in the drain lumen and;

flushing a flush fluid through the flush lumen and into the drain lumen via the at least one septal hole and thereby removing the occlusion.

19 . The method of claim 18 , further comprising pausing withdrawing fluid from the drainage site via the drain lumen.

20 . The method of claim 19 , wherein pausing further comprises reversing a direction of fluid flow in the drain lumen.

21 . The method of claim 19 , further comprising resuming withdrawing fluid from the drainage site vide the drain lumen.

22 . The method of claim 19 , further comprising monitoring a rate of fluid withdrawal from the drainage site.

23 . The method of claim 22 , further comprising monitoring a rate of change of the rate of fluid withdrawal from the drainage site.

24 . The method of claim 23 , where identifying an occlusion in the drain lumen is based at least in part on one or more of the rate of fluid withdrawal from the drainage site and the rate of change of the rate of fluid withdrawal from the drainage site.

25 . The method of claim 19 , further comprising monitoring a pressure in the waste lumen.

26 . The method of claim 25 , further comprising monitoring a rate of change of the pressure in the waste lumen.

27 . The method of claim 26 , wherein identifying an occlusion in the drain lumen is based at least in part on one or more of the pressure in the waste lumen and a rate of change of the pressure in the waste lumen.

28 . A system for percutaneous drainage of a drainage site, comprising:

a catheter having

a catheter wall extending from a proximal end portion of the catheter to a distal end portion of the catheter, the distal end portion of the catheter configured for placement within the drainage site,

a septum disposed within the catheter wall and extending from a proximal end portion of the catheter to a distal end portion of the catheter, wherein the distal end portion includes a distal tip of the catheter, the septum extending completely to the distal tip of the catheter;

a drain lumen defined by a first portion of the catheter wall and the septum, and extending from the proximal end portion of the catheter to the distal end portion of the catheter, and

a flush lumen defined by a second portion of the catheter wall and the septum, and extending from the proximal end portion of the catheter to the distal end portion of the catheter, wherein the flush lumen is separated from the drain lumen by the septum, wherein the septum has a plurality of septal holes in the septum along a longitudinal axis of the catheter;

a drain tube having a first end portion coupled to the drain lumen at the proximal end portion of the catheter, and a second end portion coupled to a waste collection container;

a first pump coupled to the drain tube between the first end portion of the drain tube and the second end portion of the drain tube;

a flush tube having a first end portion coupled to the flush lumen at the proximal end portion of the catheter, and a second end portion coupled to a flush material container having a flush material disposed therein;

a second pump coupled to the flush tube between the first end portion of the flush tube and the second end portion of the flush tube; and

a controller coupled to the first pump and the second pump for controlling the first pump and the second pump;

wherein the first portion of the catheter wall has at least a first wall hole disposed therein proximate to the distal end portion of the catheter such that the drain lumen is in communication with the drainage site when the distal end portion of the catheter is placed within the drainage site;

wherein the second portion of the catheter wall has at least a second wall hole disposed therein proximate to the distal end portion of the catheter such that the flush lumen is in communication with the drainage site when the distal end portion of the catheter is placed within the drainage site;

wherein each wall hole has a corresponding septal hole of the plurality of septal holes; and

wherein each wall hole is aligned with the corresponding septal hole such that each wall hole is positioned between 1 mm and 6.5 mm of the corresponding septal hole along the longitudinal axis.

29 . The catheter of claim 1 , wherein the drain lumen includes a hole at the distal tip of the catheter for delivery of a guidewire.

30 . The catheter of claim 11 , wherein the drain lumen includes a hole at the distal tip of the catheter for delivery of a guidewire.

31 . The catheter of claim 28 , wherein the drain lumen includes a hole at the distal tip of the catheter for delivery of a guidewire.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 2, 2022
From: BALESH, ELIE RASHID; PENA, MATTHEW ISAAC; VU, LINH QUOC; BAUTISTA, ROI JERIC GARCIA
To: NOVIRAD, INC.
Reel/Frame 058866/0195 →
Continuity (2)
Provisional Application 63137092 · Jan 13, 2021
Related Publication 20220218962A1 · Jul 14, 2022
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