US4774951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgically implantable cardiac pacemaker
Assignee: Individual
•
Filing: 1986-06-17
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Granted: 1988-10-04
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Expires: 2006-06-17
Abstract
Abstract The output or outputs of the subcutaneously implanted pulse generator of a cardiac pacemaker are accessible by introducing a cannula or the wire of a stylet through the skin and thereupon through a silicone membrane which is implanted beneath the skin and surrounds a portion of a chamber which contains the output or outputs or affords access to the output or outputs through a conduit or conductor. The cannula or the wire of the sylet can be used to test the pulse generator, the lead or leads and/or the connection or connections between the lead or leads and the pulse generator as well as to admit medicaments and/or to facilitate or carry out adjustments or repairs.
Inventors
- 👤 Peter Osypka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:53
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/372; A61M; A61M39/00; A61M39/02; A61M39/0208; A61N1/375; A61N1/37512; A61M2039/0244; A61M5/00; A61M5/14; A61M5/142; A61M5/14244; A61M5/14276
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
89 words
A cardiac pacemaker comprising a subcutaneously implantable pulse generator having at least one pulse transmitting output; at least one subcutaneously implantable penetrable wall; and at least one implantable tubular lead connected with said output and having an open fluid receiving end adjacent said wall in implanted condition of said wall and said lead, said output and said open end being accessible to a percutaneous instrument in response to penetration of such instrument through the skin of the user of the pulse generator and thereupon immediately through said penetrable wall.
Claim 2
Dependent Claim
89 words
A cardiac pacemaker comprising a subcutaneously implantable pulse generator having at least one pulse transmitting output; at least one subcutaneously implantable penetrable wall; and at least one implantable tubular lead connected with said output and having an open fluid receiving end adjacent said wall in implanted condition of said wall and said lead, said output and said open end being accessible to a percutaneous instrument in response to penetration of such instrument through the skin of the user of the pulse generator and thereupon immediately through said penetrable wall.
Claim 3
Dependent Claim
39 words
The pacemaker of claim 1, wherein said at least one lead is a pulse transmitting lead which is connected with said pulse generator to receive pulses from said output in implanted condition of said pulse generator and said lead.
Claim 4
Dependent Claim
12 words
The pacemaker of claim 2, wherein said instrument includes an electric conductor.
Claim 5
Dependent Claim
11 words
The pacemaker of claim 1, wherein said instrument includes a cannula.
Claim 6
Dependent Claim
12 words
The pacemaker of claim 1, wherein said wall contains a self-sealing material.
Claim 7
Dependent Claim
25 words
The pacemaker of claim 5, wherein said wall includes a membrane of a neutral material which is compatible with the human body as an environment.
Claim 8
Dependent Claim
10 words
The pacemaker of claim 6, wherein said membrane contains silicone.
Claim 9
Dependent Claim
18 words
The pacemaker of claim 1, wherein said wall comprises a self-sealing membrane and reinforcing means for said membrane.
Claim 10
Dependent Claim
13 words
The pacemaker of claim 8, wherein said reinforcing means comprises a marginal bead.
Claim 11
Dependent Claim
63 words
The pacemaker of claim 1, wherein said pulse generator includes a housing defining with said wall at least one chamber for said at least one output, said wall sealing said chamber from the body tissue surrounding said pulse generator in implanted condition of said housing and said wall, said open end being in communication with said chamber in implanted condition of said lead.
Claim 12
Dependent Claim
20 words
The pacemaker of claim 1, wherein said wall is substantially rigid and tends to assume and retain a predetermined shape.
Claim 13
Dependent Claim
44 words
The pacemaker of claim 1, wherein said pulse generator has a housing including an electrically conductive portion which is accessible to the instrument on penetration of the instrument through said wall, said lead being electrically connected with said output and/or with said conductive portion.
Claim 14
Dependent Claim
13 words
The pacemaker of claim 12, wherein said conductive portion includes a metallic plate.
Claim 15
Dependent Claim
13 words
The pacemaker of claim 12, wherein said conductive portion includes a metallic netting.
Claim 16
Dependent Claim
12 words
The pacemaker of claim 12, wherein said conductive portion includes a latticework.
Claim 17
Dependent Claim
40 words
The pacemaker of claim 12, wherein said conductive portion and said wall define at least one chamber for said output, said chamber being in communication with said open end in implanted condition of said housing, said wall and said lead.
Claim 18
Dependent Claim
94 words
The pacemaker of claim 1, wherein said at least one implantable lead is a pulse transmitting lead and further comprising means for electrically conencting said lead to said output, said pulse generator further comprising an electrically conductive portion connected with said connecting means and/or with said output and defining with said wall a chamber for said output, said chamber being adjacent said output and said connecting means, the open end of said lead being in communication with said chamber in implanted condition of said lead, said wall, said connecting means and said pulse generator.
Claim 19
Dependent Claim
26 words
The pacemaker of claim 17, wherein said pulse generator further comprises a funnel-shaped portion defining a narrowing passage extending from said chamber toward said open end.
Claim 20
Dependent Claim
79 words
The pacemaker of claim 1, wherein said wall is spaced apart from said pulse generator in implanted condition of said wall and said pulse generator, and further comprising an implantable casing defining with said wall a chamber which communicates with said open end in implanted condition of said lead and said casing and is accessible to the instrument upon penetration of the instrument through the skin and said wall, and means for connecting said chamber with said pulse generator.
Claim 21
Dependent Claim
15 words
The pacemaker of claim 19, wherein said connecting means comprises at least one electrical conductor.
Claim 22
Dependent Claim
27 words
The pacemaker of claim 19, wherein said connecting means comprises at least one conduit and said chamber communicates with said open end by way of said conduit.
Claim 23
Dependent Claim
16 words
The pacemaker of claim 19, further comprising means for electrically connecting said lead with said output.
Claim 24
Dependent Claim
62 words
The pacemaker of claim 1, further comprising at least one additional subcutaneously implantable penetrable wall and an additional implantable lead for said additional wall, said is accessible to the instrument upon penetration of the instrument through the skin and thereafter through additional lead having an end portion which said additional wall in implanted condition of said additional lead and said additional wall.
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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) | 1991-10-04 | 1992-04-04 | 1992-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-04 | 1996-04-04 | 1996-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-04 | 2000-04-04 | 2000-10-04 | $7700.00 | Window Closed / Lapsed |