Patent US5300086A successfully refreshed from Google Patents.
US5300086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device with a locating member for removably implanting a blood filter in a vein of the human body
Assignee: Individual
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Filing: 1992-12-02
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Granted: 1994-04-05
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Expires: 2012-12-02
Abstract
Abstract This device comprises an elastic guide wire onto which is fitted a semi-rigid tubular mandrel which is in turn fitted into a thin-walled tubular sheath. A catheter in the form of an easily divisible flexible tube has a distal end that permanently holds a blood filter. The catheter's proximal end receives a locating member that can be confined under the skin of a patient to insure that no infection develops. After the filter is temporarily implanted, a removable strengthening cable can be inserted into the catheter to advance the filter along the sheath to a chosen position in a vein, in particular the inferior vena cava, of the patient. The locating member makes it easy to remove the filter whenever the risk of pulmonary embolism is no longer present.
Inventors
- 👤 Pierre Gory
- 👤 Gilles Bovyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:57
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/01; A61F2/0105; A61F2/95; A61F2/011; A61F2002/016; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/005; A61F2230/0063; A61F2230/0067; A61F2230/0073; A61F2230/008
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
146 words
Apparatus to be removably implanted in a human body for filtering blood, which comprises; a filter adapted for filtering blood in a blood vessel; a divisible catheter adapted for implanting in said human body; said catheter having a proximal and a distal end; said filter being permanently fixed to said distal end of said catheter; a locating member adapted to be disposed subcutaneously for localizing said catheter through a skin surface of said human body after said catheter is implanted; said locating member being fixed to said proximal end of said catheter; said locating member comprising a sleeve enclosing an internal closing means; said internal closing means being disposed at said proximal end of said catheter for closing thereof; said sleeve having a central opening therethrough; and said internal closing means comprising a plug engaged within said proximal end of said catheter through said central opening.
Claim 2
Dependent Claim
146 words
Apparatus to be removably implanted in a human body for filtering blood, which comprises; a filter adapted for filtering blood in a blood vessel; a divisible catheter adapted for implanting in said human body; said catheter having a proximal and a distal end; said filter being permanently fixed to said distal end of said catheter; a locating member adapted to be disposed subcutaneously for localizing said catheter through a skin surface of said human body after said catheter is implanted; said locating member being fixed to said proximal end of said catheter; said locating member comprising a sleeve enclosing an internal closing means; said internal closing means being disposed at said proximal end of said catheter for closing thereof; said sleeve having a central opening therethrough; and said internal closing means comprising a plug engaged within said proximal end of said catheter through said central opening.
Claim 3
Dependent Claim
22 words
Apparatus as in claim 1, wherein said plug is a screw operable from the exterior of said sleeve through said central opening.
Claim 4
Dependent Claim
40 words
Apparatus as in claim 1, wherein said sleeve comprises an internal deformable ring fixed to said proximal end of said catheter; and said internal deformable ring is crimped around said proximal end of said catheter wherein said plug is engaged.
Claim 5
Dependent Claim
47 words
Apparatus as in claim 1, wherein said filter comprises a plurality of elastically expandable branches having proximal ends; said proximal ends of said elastically expandable branches being fixed to a plug means; and said plug means being adapted to permanently close said distal end of said catheter.
Claim 6
Dependent Claim
171 words
Apparatus to be removably implanted in a human body for filtering blood, which comprises; a filter adapted for filtering blood in a blood vessel; a divisible catheter adapted for implanting in said human body up to said blood vessel; said catheter having a proximal and a distal end; said filter being permanently fixed to said distal end of said catheter which is closed by a plug means; a locating member adapted to be disposed subcutaneously for localizing said catheter through a skin surface of said human body after said catheter is implanted; said locating member being fixed to said proximal end of said catheter; said locating member comprising a sleeve having a central opening therethrough wherein said proximal end of said catheter is closely engaged for fixing said sleeve thereto; said sleeve enclosing an internal closing means disposed at said proximal end of said catheter for closing thereof; and said internal closing means comprising a screw engaged within said proximal end of said catheter through said central opening of said sleeve.
Claim 7
Dependent Claim
171 words
Apparatus to be removably implanted in a human body for filtering blood, which comprises; a filter adapted for filtering blood in a blood vessel; a divisible catheter adapted for implanting in said human body up to said blood vessel; said catheter having a proximal and a distal end; said filter being permanently fixed to said distal end of said catheter which is closed by a plug means; a locating member adapted to be disposed subcutaneously for localizing said catheter through a skin surface of said human body after said catheter is implanted; said locating member being fixed to said proximal end of said catheter; said locating member comprising a sleeve having a central opening therethrough wherein said proximal end of said catheter is closely engaged for fixing said sleeve thereto; said sleeve enclosing an internal closing means disposed at said proximal end of said catheter for closing thereof; and said internal closing means comprising a screw engaged within said proximal end of said catheter through said central opening of said sleeve.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-04-04 | 1997-10-04 | 1998-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-04-04 | 2001-10-04 | 2002-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-04-04 | 2005-10-04 | 2006-04-05 | $7700.00 | Window Closed / Lapsed |