MEDICAL DEVICE SECUREMENT SYSTEM

• US 20110282291A1
• Filed: 09/18/2009
• Published: 11/17/2011
• Est. Priority Date: 09/19/2008
• Status: Active Grant

• Current Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Original Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Inventors: Ciccone, Paul
• Granted Patent: US 8,734,400 B2
• Time in Patent Office: Days
• US Class Current: 604/178
• CPC Class Codes: A61M 2025/024 having a clip or clamp system
• CPC Class Codes: A61M 2025/0266 using pads, patches, tapes or the like
• CPC Class Codes: A61M 2025/028 having a mainly rigid support structure
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body

Abstract

A catheter securement device 100 holds a medical article such as a catheter in position upon the body of a patient and at least inhibits longitudinal movement of the medical article. The securement device 100 includes a retainer 102 and a clamp 104. The retainer 102 and clamp 104 include interengaging structure. The interengaging structure may be a ratchet mechanism by which a medical provider tightens the clamp against the retainer. The ratchet mechanism allows a single securement system to be used with medical articles that have different longitudinal lengths as well as medical articles that have distally located contact surfaces. The retainer forms a channel 106 into which at least a portion of the medical article is inserted. Each of the retainer 102 and the clamp 104 include at least one abutment surface that can abut against a contact point or surface on the medical article. The abutments inhibit motion of the medical article in proximal and distal directions through the channel when the clamp 104 is tightened against the retainer 102. The securement system may be designed for single or multi-use.

Claims

1. A securement system for securing a medical article to the skin of a patient, the system comprising:

a medical article comprising a connector fitting and a catheter hub;

two anchor pads, each anchor pad being spaced apart from the other and having a lower surface at least partially covered by an adhesive for contacting the patient'"'"'s skin;

a retainer comprising

a body member having a channel formed therethrough about a channel axis, the channel being configured to retain at least a first portion of the medical article and having a first longitudinal access opening disposed on an underside of the body member to allow at least ingress of the first portion of the medical article into the channel,

two support members, each support member being attached to one of the anchor pads and configured to support the body member, each support member being spaced apart from the channel axis so as not to obstruct at least ingress of the first portion of the medical article into the channel, and

a first abutment surface extending generally normal to the channel axis and configured to inhibit longitudinal movement of the medical article in a first longitudinal direction;

a clamp comprising

a collar configured to at least partially surround at least a second portion of the medical article, the collar having a second longitudinal access opening disposed on an underside of the collar to allow at least ingress of the second portion of the medical article into the collar, the second longitudinal access opening being aligned with the first longitudinal access opening, and

a second abutment surface extending generally normal to the channel axis and configured to inhibit longitudinal movement of the medical article in a second longitudinal direction opposite the first longitudinal direction; and

interengaging structure configured to couple the clamp and the retainer and to allow movement of the clamp relative to the retainer in at least the first longitudinal direction, wherein movement of the clamp relative to the retainer in the first longitudinal direction moves the second abutment surface closer to the first abutment surface.

2. The system of claim 1, wherein the interengaging structure comprises at least one series of ratchet teeth and at least one locking tooth.

3. The system of claim 2, wherein at least one of the locking teeth extends in a generally lateral and outward direction.

4. The system of claim 2, wherein at least one of the locking teeth extends in a generally upward direction.

5. The system of claim 2, wherein the at least one series of ratchet teeth is formed on the clamp and the at least one locking tooth is formed on the retainer.

6. The system of claim 2, wherein the at least one locking tooth is formed on the clamp and the at least one series of ratchet teeth is formed on the retainer.

7. The system of claim 1, wherein the interengaging structure comprises two series of ratchet teeth and two locking teeth.

8. The system of claim 7, wherein one series of ratchet teeth and one locking teeth are formed on the clamp, and the other series of ratchet teeth and the other locking tooth are formed on the retainer.

9. The system of claim 7 further comprising two clamp arms, each clamp arm being spaced apart from the channel and extending generally parallel to the channel axis.

10. The system of claim 9, wherein the two clamp arms extend from the retainer.

11. The system of claim 9, wherein the two clamp arms extend from the collar.

12. The system of claim 9, wherein the retainer comprises two slots, each slot configured to receive one of the clamp arms.

13. The system of claim 9, wherein at least one of the series of ratchet teeth is disposed on one of the clamp arms and at least one of the locking teeth is disposed on the retainer.

14. The system of claim 1, wherein the interengaging structure holds the clamp at a generally fixed angle with respect to a lower surface of the body member.

15. The system of claim 14, wherein the angle is approximately 7°

.

16. The system of claim 1, wherein the second abutment surface is a proximally-facing surface of the collar.

17. A device for securing a medical article to a patient, the device comprising:

two anchor pads, each anchor pad spaced apart from the other and having a lower surface at least partially covered by an adhesive for contacting the patient'"'"'s skin;

a retainer comprising

a body member having a channel formed therethrough about a channel axis, the channel being configured to retain at least a first portion of the medical article and having a first longitudinal access opening disposed on an underside of the body member to allow at least ingress of the first portion of the medical article into the channel,

two support members, each support member attached to one of the anchor pads and configured to support the body member, each support member being spaced apart from the channel axis so as not to obstruct at least ingress of the first portion of the medical article into the channel, and

a first abutment surface extending generally normal to the channel axis, the first abutment surface configured to abut a corresponding first surface of the medical article and inhibit longitudinal movement of the medical article in a first longitudinal direction;

a clamp comprising

a collar configured to at least partially surround at least a second portion of the medical article, the collar having a second longitudinal access opening disposed on an underside of the collar to allow at least ingress of the second portion of the medical article into the collar, the second longitudinal access opening being aligned with the first longitudinal access opening, and

a second abutment surface extending generally normal to the channel axis, the second abutment surface configured to abut a corresponding second surface of the medical article and inhibit longitudinal movement of the medical article in a second longitudinal direction opposite the first longitudinal direction; and

interengaging structure configured to couple the clamp and the retainer and to allow movement of the clamp relative to the retainer in at least the first longitudinal direction, wherein movement of the clamp relative to the retainer in the first longitudinal direction moves the second abutment surface closer to the first abutment surface.

18. A device for securing a medical article to a patient, the device comprising:

a retainer having a channel formed therethrough about a channel axis, the channel being configured to receive a first portion of the medical article and having a first longitudinal access opening disposed on an underside of the retainer;

two supports supporting the retainer, each support being disposed on opposite sides of the channel axis so as to allow at least ingress of the first portion into the channel;

a clamp having a collar sized and shaped to at least partially surround a second portion of the medical article, the collar having a second longitudinal access opening disposed on an underside of the clamp to allow at least ingress of the second portion of the medical article into the collar, the second longitudinal access opening being generally aligned with the first longitudinal access opening; and

interengaging structure coupling the clamp and the retainer so as to allow movement of the clamp relative to the retainer in a longitudinal direction and inhibit movement of the clamp relative to the retainer in a direction opposite to the longitudinal direction.

19. The device of claim 18, wherein the channel has a tapering inner shape which generally matches a tapering outer shape of the first portion of the medical article, the tapering inner shape of the channel inhibiting movement of the medical article in a proximal direction relative to the retainer.

20. The device of claim 18, wherein the channel has an abutment surface which contacts a surface of the first portion of the medical article so as inhibit movement of the medical article in a proximal direction relative to the retainer.

21. The device of claim 18, wherein the clamp has an abutment surface which contacts a surface of the second portion of the medical article so as inhibit movement of the medical article in a distal direction relative to the clamp.

22. A method of securing a medical article to a patient, the medical article having a first distally-facing abutment surface and a first proximally-facing abutment surface, the method comprising:

providing a securement device comprising a retainer, a clamp, and interengaging structure configured to couple the retainer to the clamp, each of the retainer and clamp forming a channel having a truncate cross-sectional shape, each channel having an access opening dispose so as to face a patient'"'"'s skin;

locating the securement device above the medical article so as to align portions of the medical article with the channels of the securement device;

pressing the portions of the medical article through the access openings and into the channels so as to limit movement of the medical article in at least lateral and transverse directions relative to the securement device; and

moving the clamp toward the retainer so as to limit movement of the medical article in a longitudinal direction relative to the securement device.

23. The method of claim 22 further comprising adhering the securement device to the patient'"'"'s skin so as to inhibit at least one of the portions from being removed from the retainer through one of the access openings.