Catheter anchoring system

• US 20010011164A1
• Filed: 03/15/2001
• Published: 08/02/2001
• Est. Priority Date: 03/19/1993
• Status: Active Grant

• Current Assignee: Steven F. Bierman
• Original Assignee: Steven F. Bierman
• Inventors: Bierman, Steven F.
• Granted Patent: US 6,786,892 B2
• Time in Patent Office: Days
• US Class Current: 604/180
• CPC Class Codes: A61M 2025/024 having a clip or clamp system
• CPC Class Codes: A61M 2025/0273 having slits to place the pad around a catheter puncturing site
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• CPC Class Codes: Y10S 128/26 Cannula supporters

Abstract

A catheter anchoring system is provided to securely anchor to a patient'"'"'s skin a catheter and fluid supply tube interconnection. The anchoring system comprises a retainer configured to receive a catheter adaptor in a variety of positions. The adaptor interconnects the catheter and the fluid supply tube. In one embodiment the adaptor takes the form of a conical-shaped fitting permanently attached to the collar and includes a radially extending member that projects from the adaptor. The anchoring system additionally includes a flexible, adhesive anchor pad which supports a tube clip, as well as the retainer. The retainer includes a channel that is configured to receive the adaptor in a snap-fit manner. The retainer also includes a plurality of lateral slots. Each slot is sized to receive and to capture the radically extending member (e.g., an annular collar) of the adaptor to prevent the adaptor from sliding within the channel.

Claims

1. A catheterization system comprising:

a catheter including an adaptor with a radially extending member that projects from said adaptor; and

a retainer including first and second channel portions which extend about a longitudinal axis, each channel portion generally having a truncated cross-sectional shape with an opening along said longitudinal axis, each channel portion being sized to surround at least a portion of the adaptor through an arc of greater than 180E about said longitudinal axis, and at least one lateral slot which extends generally perpendicular to said longitudinal axis and lies between said first and second channel portions, said slot having a longitudinal length so dimensioned to substantially equal the thickness of the radially extending member of said adaptor and to be less than the combined longitudinal lengths of said first and second channel portions to provide lateral stability of the adaptor within the retainer with the radially extending member positioned within said lateral slot.

2. A catheterization system as in

claim 1

, wherein the catheter adaptor comprises a conical-shaped hub.

3. A catheterization system as in

claim 1

, wherein the radially extending member of the adaptor comprises an annular collar that encircles a portion of the adaptor.

4. A catheterization system as in

claim 1

, wherein the adaptor is affixed to a body of the catheter.

5. A catheterization system as in

claim 1

, wherein the adaptor is permanently attached to a body of the catheter.

6. A catheterization system as in

claim 1

additionally comprising a flexible anchor pad having an adhesive bottom surface and a top surface on which said retainer is mounted, said retainer being positioned on said top surface in a position exposing the openings to said channel portions.

7. A catheterization system as in

claim 1

, wherein said retainer includes at least two lateral slots positioned between the first and second channel portions, each lateral slot being so dimensioned to receive the radially extending member of the catheter adaptor to prevent the catheter from moving in a longitudinal direction, and said lateral slots are arranged next to each other along the longitudinal axis so as to provide multiple positions in the longitudinal direction in which to insert said radially extending member.

8. A catheterization system as in

claim 1

, wherein each of said first and second channel portions have a generally arcuate shape of a radius of curvature generally matching that of a corresponding portion of the catheter adaptor received by the respective channel portion.

9. A catheterization system as in

claim 8

, wherein the radii of curvature of said first and second channel portions are generally equal to each other.

10. A catheterization system as in

claim 8

, wherein a minimum radius of curvature of the first channel portion is larger than a maximum radius of curvature of the second channel portion.

11. A catheterization system as in

claim 1

, wherein at least one of the first and second channel portions have a generally conical shape.

12. An anchoring system for use with a catheter having an adaptor with a radially extending member projecting therefrom, said anchoring system comprising:

a retainer including first and second channel portions which extend about a longitudinal axis, each channel portion generally having a truncated cross-sectional shape with an opening along said longitudinal axis, each channel portion being sized to surround at least a portion of the adaptor through an arc of greater than 180E about said longitudinal axis, and at least one lateral slot which extends generally perpendicular to said longitudinal axis and lies between said first and second channel portions, said slot having a longitudinal length so dimensioned to substantially equal the thickness of the radially extending member of said adaptor and to be less than the combined longitudinal lengths of said first and second channel portions to provide lateral stability of the adaptor within the retainer with the radially extending member positioned within said lateral slot; and

a flexible anchor pad having an adhesive bottom surface and a top surface on which said retainer is mounted, said retainer being positioned on said top surface in a position exposing the openings to said channel portions.

13. An anchoring system as in

claim 12

, wherein said retainer includes at least two lateral slots positioned between the first and second channel portions, each lateral slot being so dimensioned to receive the radially extending member of the catheter adaptor to prevent the catheter from moving in a longitudinal direction, and said lateral slots are arranged next to each other along the longitudinal axis so as to provide multiple positions in the longitudinal direction in which to insert said radially extending member.

14. An anchoring system as in

claim 12

, wherein each of said first and second channel portions have a generally arcuate shape.

15. An anchoring system as in

claim 14

, wherein the radii of curvature of said first and second channel portions are generally equal to each other.

16. An anchoring system as in

claim 14

, wherein a minimum radius of curvature of the first channel portion is larger than a maximum radius of curvature of the second channel portion.

17. An anchoring system as in

claim 12

, wherein the channel portions together define a generally conical shape truncated along one side.

19. An anchoring system as in

claim 16

, wherein each of said first and second channel portions have a generally arcuate shape of a radius of curvature generally matching that of the portion of the catheter adaptor received by the respective channel.

20. An anchoring system as in

claim 17

, wherein the radii of curvature of said first and second channel portions are generally equal to each other.

21. An anchoring system as in

claim 17

, wherein a minimum radius of curvature of the first channel portion is larger than a maximum radius of curvature of the second channel portion.

22. An anchoring system as in

claim 16

additionally comprising a flexible anchor pad having an adhesive bottom surface and a top surface on which said retainer is mounted, said retainer being positioned on said top surface in a position exposing the openings to said channel portions.

23. An anchoring system as in

claim 16

, wherein each of said first and second channel portions generally has a conical shape truncated along one side.

18. An anchoring system for use with a catheter having an adaptor with a radially extending member projecting therefrom, said anchoring system comprising:

a retainer including first and second channel portions which extend about a longitudinal axis, each channel portion being configured to receive a corresponding portion of the catheter adaptor, and a plurality of lateral slots, each lateral slot being dimensioned so as to receive the radially extending member of the catheter adaptor to prevent the catheter from moving in a longitudinal direction, said lateral slots being arranged next to each other along the longitudinal axis so as to provide multiple positions in the longitudinal direction in which to insert the radially extending member.

24. An anchoring system for use with a catheter having an adaptor with a radially extending member projecting therefrom, said anchoring system comprising:

a retainer including first and second channel portions which extend about a longitudinal axis, each channel portion generally having a truncated cross-sectional shape with an opening along said longitudinal axis, at least one of the channel portions being sized to surround at least a portion of the adaptor through an arc of greater than 180°

about said longitudinal axis, and a lateral slot which extends generally perpendicular to said longitudinal axis and lies between said first and second channel portions, at least one of the channel portions having a cross-sectional size which tapers along the length of the channel portion; and

a flexible anchor pad having an adhesive bottom surface and a top surface on which said retainer is mounted, said retainer being positioned on said top surface in a position exposing the opening of said channel portions.

25. An anchoring system as in

claim 24

, wherein the cross section of the first channel portion tapers from a larger size at a point removed from the lateral slot to a smaller size at a point adjacent to the lateral slot.

26. An anchoring system as in

claim 24

, wherein the cross section of the second channel portion tapers from a larger size adjacent to the lateral slot to a smaller size at a point farther from the lateral slot.

27. An anchoring system as in

claim 24

, wherein both the first and second channel portions taper along their length, the first channel portion tapering from a larger size cross section at a point removed from the lateral slot to a smaller size at a point adjacent to the lateral slot, and the second channel portion tapering from a larger size at a point adjacent to the lateral slot to a smaller size at a point farther from the lateral slot.

28. An anchoring system as in

claim 27

, wherein the first and second channel portions together comprise a conical tapering channel for receiving a conical-shaped adaptor.

29. An anchoring system as in

claim 24

, wherein each channel portion is sized to surround at least a portion of the adaptor through an arc of greater than 180°

about said longitudinal axis.

30. An anchoring system as in

claim 29

further comprising at least one additional lateral slot arranged next to the other slot along the longitudinal axis so as to provide multiple positions in the longitudinal direction in which to insert the radially extending member of the adaptor.