Invalidity dossier
US 6290670
Device for removing pathological centers for use in humans and animals
Current assignee: Human Med AG
Added 9/23/2026, 1:18:54 PM
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Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US 6,290,670 B1
Title: Device for removing pathological centers for use in humans and animals
Patent number: US 6,290,670 B1
Application number: US09/420,199
Inventor: Andreas Pein
Original assignee: Andreas Pein Medizintechnik GmbH; current assignee listed as Human Med AG
Priority date: 1998-10-26
Filing date: 1999-10-18
Publication (grant) date: 2001-09-18
Legal status listed: Expired – Fee Related (anticipated expiration 2019-10-18)
Purpose: The device removes pathological centers (bodily impairments and deficiencies generally) in humans and animals, particularly in the brain, central nervous system, eyes, and other structures requiring mild invasive surgery. A stated example is removing a cataract-clouded eye lens for replacement by an artificial lens. The device addresses disadvantages of known forward-force instruments — scalpels, coagulators, lasers, ultrasound aspirators — including residual lens fragments left obscured from the surgeon's view, risk of cataract return, heat damage to corneal tissue causing endothelial cell loss, and the need for many tools and time-consuming steps.
Plain-language scope: As claimed, a supply capillary with a supply channel for a pressurized flow and a discharge capillary with a discharge channel open to the pathological center for a suction flow; the supply channel has a throttle at its distal end operatively connected with the discharge channel. In the described embodiment, an outer supply capillary is penetrated by an inner discharge capillary on a common axis, forming an annular supply channel and a radial annular throttle gap. A front ring with a central nozzle opening covers the outer capillary's front side, and the inner capillary is recessed lengthwise. A reduced-pressure region creates a conical "hydro-membrane" producing attracting forces that dislodge, comminute, and transport diseased tissue retrograde to the reduced-pressure generator — thus avoiding forward-directed force. A separate supply capillary with pressure sensor and a control unit are also described.
Source: https://patents.google.com/patent/US6290670/en
What the excerpt does not establish: The full claim set and their exact wording and dependencies; the complete description and omitted text; the number and content of drawing figures; any prior-art references, citations, or examiner rejections; the basis for the assignee listings or their accuracy; and any litigation, validity, or ownership history.
Generated 10/1/2026, 9:53:12 PM
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PTAB challenges
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Assignment history
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Prior art
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Obviousness
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Extensions
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Derivative works
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