US4561857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intravenous filter retainer
Assignee: Individual
•
Filing: 1983-03-18
•
Granted: 1985-12-31
•
Expires: 2003-03-18
Abstract
Abstract A very lightweight intravenous filter retainer assembly, weighing only in the order of two grams, includes a formed medically inert plastic sheet element, Velcro tabs mounted on the side edges of this formed plastic sheet member and a foam strip for extending around the arm and engaging the Velcro tabs. The standard type of intravenous filter is an elongated generally rectangular element with one flat side and the other side having a central raised passageway and a pair of transverse grooves. The filter retainer assembly includes the formed plastic sheet material contoured to include a recess which extends over the back of the filter and further includes a pair of ridges to engage the recesses on the filter. In addition, the outer sides or edges of the plastic sheet element may be provided with longitudinally extending grooves to hold the intravenous tubing in a desired location relative to the patient's limb.
Inventors
- 👤 Norman L. Sacks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:10
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/02; A61M2025/028; Y; Y10; Y10S; Y10S128/00; Y10S128/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
226 words
An intravenous filter retainer assembly, for use with standard I.V. filters of the elongated, generally rectangular type having one substantially flat side, and one side provided with a raised longitudinally extending passageway and with at least one transverse groove, the filter retainer assembly comprising: a thin piece of medically inert, formed plastic sheet material; said sheet material being made of semi-rigid material preformed to have (1) a central recessed portion having an inner configuration conforming to the outer configuration of the filter, (2) a generally rectangular raised portion, (3) a rounded central recess to conform to the raised passageway of the filter, and (4) at least one transverse detent to fit into the transverse groove in said filter, to hold the filter to the retainer; said sheet material having outer side portions which are relatively flat, but are provided with longitudinally extending grooves approximately one-eighth inch in width to accommodate I.V. tubes; securing tabs cemented onto said side portions of said plastic sheet material; and foam band retaining strap means free of active adhesive material for releasable engagement with said securing tabs to hold said retainer onto the body of a patient; said filter retainer assembly weighing less than one quarter of an ounce; whereby the use of adhesive tape with its potentially adverse effects on patients is avoided, in holding said filter to the patient.
Claim 2
Dependent Claim
226 words
An intravenous filter retainer assembly, for use with standard I.V. filters of the elongated, generally rectangular type having one substantially flat side, and one side provided with a raised longitudinally extending passageway and with at least one transverse groove, the filter retainer assembly comprising: a thin piece of medically inert, formed plastic sheet material; said sheet material being made of semi-rigid material preformed to have (1) a central recessed portion having an inner configuration conforming to the outer configuration of the filter, (2) a generally rectangular raised portion, (3) a rounded central recess to conform to the raised passageway of the filter, and (4) at least one transverse detent to fit into the transverse groove in said filter, to hold the filter to the retainer; said sheet material having outer side portions which are relatively flat, but are provided with longitudinally extending grooves approximately one-eighth inch in width to accommodate I.V. tubes; securing tabs cemented onto said side portions of said plastic sheet material; and foam band retaining strap means free of active adhesive material for releasable engagement with said securing tabs to hold said retainer onto the body of a patient; said filter retainer assembly weighing less than one quarter of an ounce; whereby the use of adhesive tape with its potentially adverse effects on patients is avoided, in holding said filter to the patient.
Claim 3
Dependent Claim
25 words
An intravenous filter retainer assembly as defined in claim 1 wherein said securing tabs include fine, protruding hook-like means for releasably holding said foam band.
Claim 4
Dependent Claim
37 words
An intravenous filter retainer assembly as defined in claim 1 wherein said sheet material is in the order of about 3 to 31/2 inches across and about 2 to 21/2 inches as measured along the central recess.
Claim 5
Dependent Claim
27 words
An intravenous filter retainer assembly as defined in claim 1 wherein said central recess is in the order of one to one and one-half inches in width.
Claim 6
Dependent Claim
21 words
An intravenous filter retainer assembly as defined in claim 1 wherein said plastic sheet material is formed of polyethylene terephthalate glycol.
Claim 7
Dependent Claim
20 words
An intravenous filter retainer assembly as defined in claim 1 wherein said sheet material is less than 1/64 inch thick.
Claim 8
Dependent Claim
192 words
An intravenous filter retainer assembly, for use with standard I.V. filters of the elongated, generally rectangular type having one substantially flat side, and one side provided with a raised longitudinally extending passageway and with at least one transverse groove, the filter retainer assembly comprising: a thin piece of medically inert, formed plastic sheet material; said sheet material being formed of semi-rigid material preformed to have a central recessed portion having an inner configuration conforming to the outer configuration of the filter, preformed to have a generally rectangular raised portion, a rounded central recess to conform to the raised passageway, and preformed to have at least one transverse detent to fit into the transverse groove in said filter, to hold the filter to the retainer; said sheet material having outwardly extending side portions; securing tabs cemented onto the side portions of said plastic sheet material; and adhesive-free foam band retaining strap means for releasable engagement with said securing tabs; said filter retainer assembly weighing less than one quarter of an ounce; whereby the use of adhesive tape with its potentially adverse effects on patients is avoided, in holding said filter to the patient.
Claim 9
Dependent Claim
192 words
An intravenous filter retainer assembly, for use with standard I.V. filters of the elongated, generally rectangular type having one substantially flat side, and one side provided with a raised longitudinally extending passageway and with at least one transverse groove, the filter retainer assembly comprising: a thin piece of medically inert, formed plastic sheet material; said sheet material being formed of semi-rigid material preformed to have a central recessed portion having an inner configuration conforming to the outer configuration of the filter, preformed to have a generally rectangular raised portion, a rounded central recess to conform to the raised passageway, and preformed to have at least one transverse detent to fit into the transverse groove in said filter, to hold the filter to the retainer; said sheet material having outwardly extending side portions; securing tabs cemented onto the side portions of said plastic sheet material; and adhesive-free foam band retaining strap means for releasable engagement with said securing tabs; said filter retainer assembly weighing less than one quarter of an ounce; whereby the use of adhesive tape with its potentially adverse effects on patients is avoided, in holding said filter to the patient.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-30 | 1989-07-01 | 1989-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-30 | 1993-07-01 | 1993-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-30 | 1997-07-01 | 1997-12-31 | $7700.00 | Window Closed / Lapsed |