US5354282A — Catheter anchoring system

Claim 1

Independent Claim 179 words

A retainer for securely anchoring a catheter adaptor of the type having an elongated tubular body, a support arm attaching a clip to the adaptor body, and a protuberance disposed on the clip proximal of the support arm, said retainer comprising: a pair of opposing longitudinal walls, each wall defining a series of slots with each slot being sized to receive a portion of the support arm of the catheter adaptor which extends through the slot, and to prevent the support arm from moving in a direction parallel to a longitudinal axis of the retainer; and a central channel extending through said retainer about an axis which is generally parallel to said retainer longitudinal axis, said channel being interposed between said opposing longitudinal walls and having a truncated circular cross-sectional shape which extends through an angle greater than 180° about said channel axis, such that with the adaptor tubular body positioned within the central channel, said longitudinal walls prevent the adaptor from moving either in transverse or lateral directions which are normal to the longitudinal axis of the retainer.

Claim 2

Dependent Claim 179 words

A retainer for securely anchoring a catheter adaptor of the type having an elongated tubular body, a support arm attaching a clip to the adaptor body, and a protuberance disposed on the clip proximal of the support arm, said retainer comprising: a pair of opposing longitudinal walls, each wall defining a series of slots with each slot being sized to receive a portion of the support arm of the catheter adaptor which extends through the slot, and to prevent the support arm from moving in a direction parallel to a longitudinal axis of the retainer; and a central channel extending through said retainer about an axis which is generally parallel to said retainer longitudinal axis, said channel being interposed between said opposing longitudinal walls and having a truncated circular cross-sectional shape which extends through an angle greater than 180° about said channel axis, such that with the adaptor tubular body positioned within the central channel, said longitudinal walls prevent the adaptor from moving either in transverse or lateral directions which are normal to the longitudinal axis of the retainer.

Claim 3

Dependent Claim 36 words

The retainer as defined in claim 1 additionally comprising a bottom surface, and wherein said channel axis is oblique to said bottom surface at an angle substantially equal to an incident angle of an indwelling catheter.

Claim 4

Dependent Claim 15 words

The retainer as defined in claim 2, wherein said angle ranges between 5° and 15°.

Claim 5

Dependent Claim 23 words

The retainer as defined in claim 1, wherein said central channel has a diameter approximately equal to that of the adaptor tubular body.

Claim 6

Dependent Claim 31 words

The retainer as defined in claim 1, wherein said slots are spaced apart by a distance approximately half of the distance between the support arm and the protuberance of the adaptor.

Claim 7

Dependent Claim 20 words

The retainer as defined in claim 1 additionally comprising a key-way groove positioned on a proximal end of the retainer.

Claim 8

Dependent Claim 109 words

A catheter anchoring system for securely retaining a catheter adaptor interconnecting a catheter and a fluid supply tube, said anchoring system comprising: a base having at least one rail extending along a longitudinal axis of said base; a retainer configured to receive and retain the catheter adaptor, said retainer comprising a groove configured to receive said rail of said base such that said retainer slides over said base, said retainer groove and said rail being configured to prevent said retainer from moving away from said rail in a transverse direction; and an interlocking element preventing said retainer from sliding over said rail with the retainer holding the catheter adaptor.

Claim 9

Dependent Claim 109 words

A catheter anchoring system for securely retaining a catheter adaptor interconnecting a catheter and a fluid supply tube, said anchoring system comprising: a base having at least one rail extending along a longitudinal axis of said base; a retainer configured to receive and retain the catheter adaptor, said retainer comprising a groove configured to receive said rail of said base such that said retainer slides over said base, said retainer groove and said rail being configured to prevent said retainer from moving away from said rail in a transverse direction; and an interlocking element preventing said retainer from sliding over said rail with the retainer holding the catheter adaptor.

Claim 10

Dependent Claim 35 words

The catheter anchoring system as defined by claim 7, wherein said interlocking element comprises a plurality of teeth and a pawl which engage the teeth to prevent the retainer from sliding relative to the base.

Claim 11

Dependent Claim 156 words

A catheter anchoring system comprising: a catheter adaptor having a tubular body connected to a radially extending support arm supporting a clip which pivots relative to said tubular body; a retainer comprising: a pair of opposing longitudinal walls, each wall defining a series of slots with each slot being sized such that a portion of said support arm of said catheter adaptor extends through the slot, and being sized to prevent said support arm from moving in a direction parallel to a longitudinal axis of said retainer; and a central channel extending through said retainer about an axis which is generally parallel to said retainer longitudinal axis, said channel being interposed between said opposing longitudinal walls and having a truncated circular cross-sectional shape sized to encompass said tubular body through an angle greater than 180°; and a base pad comprising an adhesive bottom surface which attaches to a patient's skin, said base pad supporting said retainer.

Claim 12

Dependent Claim 156 words

A catheter anchoring system comprising: a catheter adaptor having a tubular body connected to a radially extending support arm supporting a clip which pivots relative to said tubular body; a retainer comprising: a pair of opposing longitudinal walls, each wall defining a series of slots with each slot being sized such that a portion of said support arm of said catheter adaptor extends through the slot, and being sized to prevent said support arm from moving in a direction parallel to a longitudinal axis of said retainer; and a central channel extending through said retainer about an axis which is generally parallel to said retainer longitudinal axis, said channel being interposed between said opposing longitudinal walls and having a truncated circular cross-sectional shape sized to encompass said tubular body through an angle greater than 180°; and a base pad comprising an adhesive bottom surface which attaches to a patient's skin, said base pad supporting said retainer.

Claim 13

Dependent Claim 26 words

The anchoring system of claim 9 additionally comprising a tube clip configured to receive a portion of a fluid supply tube attached to said catheter adaptor.

Claim 14

Dependent Claim 15 words

The anchoring system of claim 9 additionally comprising an S-clip having a plurality of retainers.

Claim 15

Dependent Claim 17 words

The anchoring system of claim 11, wherein said retainer comprises a spherical head supported by a stem.

Claim 16

Dependent Claim 45 words

The catheter anchoring system of claim 9 additionally comprising a base having a rail extending along a longitudinal axis of said base, and wherein said retainer comprises a groove configured to receive said rail of said base such that said retainer slides over said base.

Claim 17

Dependent Claim 30 words

The catheter anchoring system of claim 13, wherein said retainer groove and said rail are configured to prevent said retainer from moving away from said rail in a transverse direction.

Claim 18

Dependent Claim 43 words

The catheter anchoring system of claim 13 additionally comprising an interlocking element which prevents said retainer from sliding over said base with the retainer holding the catheter adaptor, said interlocking element comprises a series of teeth and a pawl which engages said teeth.

Claim 19

Independent Claim 77 words

A method of anchoring a catheter to a patient's skin comprising the steps of: positioning a base proximate to an indwelling catheter; sliding a retainer over said base to locate said retainer in a desired position relative to said indwelling catheter; inserting a catheter adaptor into said retainer to prevent said adaptor from moving relative to said retainer; and interlocking said retainer and said base to prevent said catheter adaptor from moving relative to said indwelling catheter.

Claim 20

Independent Claim 77 words

A method of anchoring a catheter to a patient's skin comprising the steps of: positioning a base proximate to an indwelling catheter; sliding a retainer over said base to locate said retainer in a desired position relative to said indwelling catheter; inserting a catheter adaptor into said retainer to prevent said adaptor from moving relative to said retainer; and interlocking said retainer and said base to prevent said catheter adaptor from moving relative to said indwelling catheter.

Claim 21

Dependent Claim 37 words

The catheter anchoring method of claim 16, wherein said interlocking step comprising the steps: depressing a cantilevered finger of said retainer with said adaptor positioned within said retainer; and engaging a pawl with a series of teeth.

Claim 22

Dependent Claim 22 words

The catheter anchoring method of claim 17, wherein said step of inserting said adaptor into said retainer causes said finger to deflect.

Claim 23

Dependent Claim 21 words

The catheter anchoring method of claim 18, wherein said step of deflecting said finger causes said pawl to engage said teeth.

Claim 24

Dependent Claim 66 words

The catheter anchoring method of claim 16 additionally comprising the steps of: inserting a distal end of the adaptor into a proximal end of a catheter hub; engaging said hub with a clip which is slidably mounted on said adaptor; sliding said clip proximally on said adaptor to grasp said catheter hub; and locking said clip to maintain said clip in engagement with said catheter hub.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1997-10-10	1998-04-11	1998-10-11	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2001-10-10	2002-04-11	2002-10-11	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2005-10-10	2006-04-11	2006-10-11	$7700.00	Window Closed / Lapsed

Catheter anchoring system

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