# US 11,992,630 B2 · Devices for assisting self-catheterization and methods for using such devices

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- Number: US 11,992,630 B2
- Document ID: US11992630B2
- Status: Granted
- Kind: B2
- Application number: 17/001,569
- Filed: 2020-08-24
- Published: 2021-02-25
- Granted: 2024-05-28
- Earliest claimed: 2019-08-24
- Assignees: The Board of Trustees of the Leland Stanford Junior University
- Applicants: The Board of Trustees of the Leland Stanford Junior University
- Inventors: Craig Comiter; Gabe Ho; Maria Iglesias; Isaac Justice; Amanda Urke
- Web page: https://patentgrep.com/patent/US11992630B2

## CPC

- A61M 25/0116: {self-propelled, e.g. autonomous robots (A61M25/0122 takes precedence)}
- A61M 27/00: Drainage appliance for wounds or the like {, i.e. wound drains, implanted drains} ({negative pressure wound therapy devices A61M1/90;} implements for holding wound open A61B17/02 {; middle ear drainage A61F11/202})
- A61M 25/0017: {specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections}
- A61M 25/01: Introducing, guiding, advancing, emplacing or holding catheters (A61M25/10 takes precedence)
- A61M 2025/0213: {where the catheter is attached by means specifically adapted to a part of the human body}
- A61M 2210/1085: Bladder
- A61M 2210/1089: Urethra
- 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)}

## Abstract

Devices and methods are provided to facilitate self-catheterization of a urethra. In an exemplary embodiment, the device includes an elongate anchor member comprising a proximal end and a rounded distal end to facilitate insertion into a user's vagina, a bridge extending laterally from an intermediate location of the anchor member, a guide on the bridge spaced apart from the anchor member such that the guide is aligned with the user's urethra, the guide including a passage therethrough sized to receive a urinary catheter therethrough, and a handle on the proximal end of the anchor member to facilitate manipulation by the user and consistent, accurate alignment of the guide.

## Claims

### Claim 1

A device to facilitate self-catheterization of a urethra, comprising:
an elongate anchor member comprising a proximal portion terminating at a proximal end, a distal portion sized and/or shaped to facilitate insertion into a user's vagina, and a longitudinal axis extending between the proximal and distal portions, the distal portion having a cylindrical shape terminating in a rounded or tapered distal tip;
a bridge extending laterally from an intermediate location of the anchor member along a bridge axis between the proximal and distal portions;
a guide on the bridge spaced apart from the anchor member, the guide comprising a tubular member having a length shorter than a length of the anchor member and including a passage therethrough sized to receive a urinary catheter therethrough; and
a handle permanently attached to and extending from the proximal end of the anchor member along a handle axis substantially perpendicular and fixed permanently relative to the longitudinal axis,
wherein the longitudinal axis and the handle axis lie within a plane and the bridge axis extends out of the plane such that the handle is out of a path of catheter insertion when a urinary catheter is inserted through the guide into a urethra to reduce obstruction of the path of insertion.

### Claim 2 (depends on 1)

The device of claim 1, wherein the anchor member has a substantially uniform diameter between the proximal and distal portions.

### Claim 3 (depends on 1)

The device of claim 1, wherein the distal portion has a cross-section larger than a cross-section of the proximal portion.

### Claim 4 (depends on 1)

The device of claim 1, wherein the tubular member defines a guide axis that is aligned substantially parallel to the longitudinal axis.

### Claim 5 (depends on 4)

The device of claim 4, wherein the tubular member is substantially straight.

### Claim 6 (depends on 1)

The device of claim 1, wherein the bridge axis is substantially perpendicular and fixed permanently relative to the longitudinal axis.

### Claim 7 (depends on 6)

The device of claim 6, wherein the handle axis is offset substantially ninety degrees around the longitudinal axis relative to the bridge axis when viewed from the proximal end of the anchor member.

### Claim 8 (depends on 6)

The device of claim 6, wherein the handle has a hilt-shape.

### Claim 9 (depends on 1)

The device of claim 1, wherein the handle comprises a “T” shaped handle including opposite arms extending from the proximal end along the handle axis.

### Claim 10 (depends on 1)

The device of claim 1, wherein the anchor member is substantially rigid.

### Claim 11

A method for self-catheterization by a user, comprising:
providing a guide device comprising an elongate anchor member defining a longitudinal axis between proximal and distal portions thereof, the proximal portion terminating at a proximal end, a bridge extending laterally from an intermediate location of the anchor member along a bridge axis, a guide comprising a tubular member on the bridge and spaced apart from the anchor member and including a passage extending substantially parallel to the longitudinal axis, and a handle permanently attached to and extending from the proximal portion of the anchor member along a handle axis substantially perpendicular and fixed permanently relative to the longitudinal axis, the handle axis and offset relative to the bridge axis around the longitudinal axis when viewed from the proximal end of the anchor member;
while holding the handle, inserting the distal portion of the anchor member into the user's vagina to align the guide with the user's urethra;
inserting a urinary catheter through the passage of the guide into the urethra;
advancing the catheter into the user's bladder;
voiding urine from the bladder; and
removing the catheter and anchor member.

### Claim 12 (depends on 11)

The method of claim 11, further comprising orienting the handle substantially horizontally to orient the guide substantially vertically relative to the anchor member to align the passage with the user's urethra before inserting the urinary catheter through the passage of the guide into the urethra.

### Claim 13 (depends on 11)

The method of claim 11, further comprising holding the handle while inserting the urinary catheter, wherein the handle axis is offset from the bridge axis such that the handle is out of a path of catheter insertion when the urinary catheter is inserted through the guide into the urethra to reduce obstruction of the path of insertion.

### Claim 14

A device to facilitate self-catheterization of a urethra, comprising:
an elongate anchor member comprising a proximal portion, a distal portion sized and/or shaped to facilitate insertion into a user's vagina, and a longitudinal axis extending between the proximal and distal portions, the distal portion having a cylindrical shape terminating in a rounded or tapered distal tip;
a bridge extending from an intermediate location of the anchor member between the proximal and distal portions, the bridge extending along a bridge axis extending substantially perpendicular and fixed permanently relative to the longitudinal axis;
a tubular guide on the bridge spaced apart from the anchor member, the guide comprising a passage therethrough aligned with the longitudinal axis and sized to receive a urinary catheter therethrough; and
a handle permanently attached to and extending from the proximal portion of the anchor member along a handle axis extending substantially perpendicular and fixed permanently relative to the longitudinal axis, the handle axis offset from the bridge axis around the longitudinal axis when viewed from the proximal end of the anchor member such that the handle is out of a path of catheter insertion when the urinary catheter is inserted through the guide into the urethra to reduce obstruction of the path of insertion.

### Claim 15 (depends on 14)

The device of claim 14, wherein the handle axis is offset around the longitudinal axis substantially ninety degrees relative to the bridge axis.

### Claim 16 (depends on 14)

The device of claim 14, wherein the intermediate location is midway along a length of the anchor member.

### Claim 17 (depends on 14)

The device of claim 14, wherein the proximal portion of the anchor member has a cylindrical shape.

### Claim 18 (depends on 14)

The device of claim 14, wherein the proximal and distal portions of the anchor member have a cylindrical shape having a substantially uniform diameter between the proximal and distal portions.