Body cavity drainage devices including drainage tubes having inline portions and related methods

Patent metadata

Field	Value
Publication number	US-9821097-B2
Application number	US-201414318568-A
Country	US
Kind code	B2
Filing date	Jun 27, 2014
Priority date	Jun 27, 2014
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

A body cavity drainage device includes a drainage tube with a distal end configured for insertion into the body cavity of a patient, a fluid outlet at a proximal end of the drainage tube; and an activation apparatus coupled to the drainage tube between the proximal end of the drainage tube and the distal end of the drainage tube. The activation apparatus may be configured to alter a position of the distal end of the drainage tube in response to an input at a control device of the activation apparatus, and a first portion of the drainage tube extending from the activation apparatus toward the distal end may be at least substantially coaxial with a second portion of the drainage tube extending from the activation apparatus toward the proximal end. Methods relate to forming a body cavity drainage devices.

First claim

What is claimed is:

1. A body cavity drainage device, comprising:
a drainage tube with a distal end configured for insertion into the body cavity of a patient, the drainage tube comprising:
a central open lumen defined by a wall of the drainage tube and extending between the distal end and a proximal end of the drainage tube;
a plurality of lateral openings in the wall of the drainage tube proximate to the distal end of the drainage tube, each of the plurality of lateral openings in fluid communication with the central open lumen; and
a fluid outlet at the proximal end of the drainage tube, the fluid outlet in fluid communication with the central open lumen of the drainage tube; and

an activation apparatus coupled to the drainage tube between the proximal end of the drainage tube and the distal end of the drainage tube, a portion of the drainage tube extending through the activation apparatus, the activation apparatus configured to alter a position of the distal end of the drainage tube in response to an input at a control device of the activation apparatus, wherein a first portion of the drainage tube extending from the activation apparatus toward the distal end is at least substantially coaxial with a second portion of the drainage tube extending from the activation apparatus toward the proximal end, the control device comprising a first flexible member and a second flexible member each extending longitudinally through a first closed lumen and a second closed lumen, the first and second closed lumens disposed within the wall of the drainage tube, the first flexible member and the second flexible member positioned substantially directly opposite each other about the central open lumen; and
wherein the first closed lumen and the second closed lumen are not in fluid communication with the central open lumen.

2. The body cavity drainage device of claim 1 , wherein the activation apparatus is offset from a central axis of the drainage tube.

3. The body cavity drainage device of claim 1 , wherein the at least two flexible members are configured to apply tension to the drainage tube to bend the drainage tube in response to the input at the control device of the activation apparatus.

4. The body cavity drainage device of claim 1 , wherein the at least two flexible members extend between the control device and the wall of the drainage tube along an arcuate path.

5. The body cavity drainage device of claim 1 , wherein the control device comprises a pinion gear and two racks configured to mesh with the pinion gear, and wherein each of the at least two flexible members are attached to a respective one of the two racks.

6. The body cavity drainage device of claim 1 , wherein the control device comprises a knob configured for manual manipulation by a user.

7. The body cavity drainage device of claim 1 , wherein each lateral opening of the plurality of lateral openings comprises a diameter less than an inside diameter of the drainage tube.

8. The body cavity drainage device of claim 1 , further comprising a ferrule disposed at the distal end.

9. The body cavity drainage device of claim 8 , wherein the ferrule has an inside diameter smaller than an inside diameter of the drainage tube.

10. The body cavity drainage device of claim 9 , further comprising at least two flexible members coupling the ferrule to the control device of the activation apparatus.

11. A body cavity drainage device, comprising:
a body cavity drainage tube with a distal end configured for insertion into a body cavity of a patient and a proximal end with a fluid outlet, the body cavity drainage tube comprising:
a central open lumen defined by a wall of the body cavity drainage tube and extending between the distal end and the proximal end of the body cavity drainage tube; and
a plurality of lateral openings in the wall of the body cavity drainage tube proximate to the distal end of the body cavity drainage tube, each of the plurality of lateral openings in fluid communication with the central open lumen; and

an activation apparatus configured to bend the body cavity drainage tube, the activation apparatus disposed on the body cavity drainage device along the body cavity drainage tube intermediate the distal end and the proximal end, wherein a portion of the body cavity drainage tube extends through the activation apparatus, the activation apparatus comprising a first flexible member and a second flexible member each extending through a first closed lumen and a second closed lumen, the first and second closed lumens disposed within the wall of the body cavity drainage tube, the first flexible member and the second flexible member positioned substantially directly opposite each other about the central open lumen; and
wherein the first closed lumen and the second closed lumen are not in fluid communication with the central open lumen.

12. The body cavity drainage device of claim 11 , wherein the activation apparatus comprises:
a control device connected to a pinion gear;
at least two racks configured to mesh with the pinion gear;
wherein each of the at least two flexible members are attached to a respective one of the at least two racks, wherein the at least two flexible members are configured to apply tension to the body cavity drainage tube to bend the body cavity drainage tube.

13. The body cavity drainage device of claim 12 , wherein the at least two flexible members extend from the activation apparatus to the wall of the body cavity drainage tube along an arcuate path.

14. The body cavity drainage device of claim 13 , wherein the at least two flexible members are constrained to the arcuate path by at least one guide disposed within the activation apparatus.

15. The body cavity drainage device of claim 11 , wherein the body cavity drainage tube comprises an optical fiber for connection to a visualization device, the optical fiber extending longitudinally through the wall of the body cavity drainage tube to the distal end of the body cavity drainage tube.

16. A method of forming a body cavity drainage device, comprising:
providing a body cavity drainage tube with a distal end configured for insertion into a body cavity of a patient, the body cavity drainage tube comprising:
a central open lumen defined by a wall of the body cavity drainage tube and extending between the distal end and a proximal end of the body cavity drainage tube;
a plurality of lateral openings in the wall of the drainage tube proximate to the distal end of the body cavity drainage tube, each of the plurality of lateral openings in fluid communication with the central open lumen; and
a fluid outlet at the proximal end of the body cavity drainage tube, the fluid outlet in fluid communication with the central open lumen of the body cavity drainage tube;

coupling an activation apparatus to the body cavity drainage tube intermediate the proximal end and the distal end of the body cavity drainage tube, a portion of the body cavity drainage tube extending through the activation apparatus, the activation apparatus configured to bend the body cavity drainage tube in response to a torque input at a control device;
inserting a first flexible member and a second flexible member through a first closed lumen and a second closed lumen, the first and second closed lumens disposed within the wall of the body cavity drainage tube, the first flexible member and the second flexible member positioned substantially directly opposite each other in the wall of the body cavity drainage tube about the central open lumen; and
operatively connecting the first flexible member and the

Assignees

• Merit Medical Systems Inc

Inventors

• Lazarus Harrison M

Classifications

• A61B1/0052 Primary

  Constructional details of control elements, e.g. handles · CPC title

• A61M1/84

  Drainage tubes; Aspiration tips (for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32) · CPC title

• A61B90/37

  Surgical systems with images on a monitor during operation · CPC title

• A61B2050/314

  Flexible bags or pouches · CPC title

• A61B1/042

  characterised by a proximal camera, e.g. a CCD camera · CPC title