# US 10,307,573 B2 · Balloon catheter

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- Number: US 10,307,573 B2
- Document ID: US10307573B2
- Status: Granted
- Kind: B2
- Application number: 14/987,464
- Filed: 2016-01-04
- Published: 2016-04-28
- Granted: 2019-06-04
- Earliest claimed: 2009-09-18
- Assignees: Sanford Health
- Applicants: Sanford Health
- Inventors: Bruce A. Gardner; Jeffery A. Gardner; David Allan Swanson
- Web page: https://patentgrep.com/patent/US10307573B2

## CPC

- A61M 25/1011: {Multiple balloon catheters}
- A61M 25/0017: {specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections}
- A61M 25/003: {characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves (catheter tips A61M25/0067)}
- A61M 25/04: in the body, e.g. expansible {(A61M25/10, A61M16/0488 take precedence)}
- A61M 25/10: Balloon catheters ({A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02;} inflatable balloons for placing stents or stent-grafts A61F2/958 {; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00})
- A61M 25/1018: {Balloon inflating or inflation-control devices}
- A61M 25/10185: {Valves}
- A61M 25/1027: {Making of balloon catheters}
- A61M 25/007: {Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked}
- A61M 2025/0008: {having visible markings on its surface, i.e. visible to the naked eye, for any purpose, e.g. insertion depth markers, rotational markers or identification of type}
- A61M 2025/0078: {for fluid inflow from the body into the catheter lumen}
- A61M 2025/0079: {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}
- A61M 2210/1078: Urinary tract
- Y10T 29/49826: Assembling or joining
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A balloon catheter having an elongated catheter shaft defining a fluid drainage lumen and a balloon inflation lumen. The balloon catheter includes a fluid drainage port disposed about the distal end of the catheter shaft in fluid communication with the fluid drainage lumen, and a balloon inflation port disposed about the distal end of the catheter shaft in fluid communication with the balloon inflation lumen. A balloon portion is disposed about the distal end of the catheter shaft in fluid communication with the balloon inflation port. A release device is disposed in fluid communication with the balloon portion and the fluid drainage lumen, and includes an activating member. A tether is attached to the activating member of the release device. Tension applied to the tether activates the release device, enabling fluid flow from the balloon portion into the fluid drainage lumen and out of the body.

## Claims

### Claim 1

A catheter comprising:
an elongated tubular member comprising a proximal end and a distal end;
a fluid inlet disposed at said distal end in fluid communication with a fluid outlet disposed at said proximal end;
a first lumen within said elongated tubular member providing fluidic communication between said fluid inlet and said fluid outlet;
a retention balloon disposed at said distal end;
a retention balloon filling inlet disposed at said proximal end;
a second lumen within said elongated tubular member providing fluidic communication between said retention balloon and said retention balloon filling inlet; and
a release device in fluid communication with said retention balloon and said first lumen, said release device comprising an activating member; and
a tether operatively coupled to said activating member, said tether extending from said activating member to said proximal end, said tether operable to actuate said activating member manually using a force applied directly through said tether; and
wherein said release device is positioned in a first lumen wall between said retention balloon and said first lumen, said release device comprises a pressure release port covered by the activating member, wherein the activating member is a flexible flap, wherein said release device is opened when said flexible flap is pulled away from said pressure release port, when open said release device couples said retention balloon in fluid communication with said first lumen.

### Claim 2 (depends on 1)

The catheter of claim 1, wherein said proximal end comprises a lever device, said tether coupled to said lever device, such that manipulation of the lever imparts longitudinal movement of said tether.

### Claim 3 (depends on 1)

The catheter of claim 1, wherein said tether is inelastic in a longitudinal direction.

### Claim 4 (depends on 1)

The catheter of claim 1, further comprising a tether lumen parallel to said first lumen, said tether operable to translate longitudinally within said tether lumen.

### Claim 5 (depends on 1)

The catheter of claim 1, wherein actuation of said release device opens a channel for fluid flow from said retention balloon exiting said elongated tubular member through said fluid inlet.

### Claim 6 (depends on 5)

The catheter of claim 5, wherein said channel comprises said balloon inflation port, said second lumen, a second lumen pressure relief port, said first lumen, and said fluid inlet.