Patent EP0336984A1 successfully refreshed from Google Patents.
EP0336984A1
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EP
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Measuring probe
Assignee: Hewlett Packard GmbH Germany
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Filing: 1988-04-09
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Granted: —
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Expires: 2008-04-09
Abstract
Abstract A measuring probe for the invasive measurement of blood parameters such as pH, pO₂ or pCO₂ comprises one or more optical fibers (9) in a tubing (7). These optical fibers (9) end up in sensors (8,14,15) which are surrounded by a sheath (2). An additional wire (5) is guided both in the tubing (7) and the sheath (2). At the proximal end of the probe, the wire (5) is connected to locking means (3) closing the sheath (2) at its outer end, whereas, at the distal end thereof, the wire (5) is fastened to the tubing (7) or to a connector 19). Therefore, this wire (5) ensures perfect strain relieving of the probe.
Inventors
- 👤 Martin Günther
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 13:39
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/145; A61B5/14539; A61B5/1455; A61B5/1459; A61M; A61M25/00; A61M25/0009; A61M25/0067; A61M25/0068; A61M25/0069; A61M2025/0098
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
114 words
Measuring probe for the invasive measurement of blood parameters such as pH, pO₂ or pCO₂, with at least one optical fiber (9) guided in a tubing element (7) and connected at its proximal end to a sensor (8) which is surrounded by a tube-like sheath (2), characterized in that (1.1) said sheath (2) is closed at its outer end by locking means (3), (1.2) a wire (5) is fastened to the inner side of said locking means (3), (1.3) said wire (5) is guided in said tubing element (7) and (1.4) said wire (5) is fastened to a distal portion of the probe, preferably to said tubing element (7) or to connecting means (19).
Claim 2
Dependent Claim
114 words
Measuring probe for the invasive measurement of blood parameters such as pH, pO₂ or pCO₂, with at least one optical fiber (9) guided in a tubing element (7) and connected at its proximal end to a sensor (8) which is surrounded by a tube-like sheath (2), characterized in that (1.1) said sheath (2) is closed at its outer end by locking means (3), (1.2) a wire (5) is fastened to the inner side of said locking means (3), (1.3) said wire (5) is guided in said tubing element (7) and (1.4) said wire (5) is fastened to a distal portion of the probe, preferably to said tubing element (7) or to connecting means (19).
Claim 3
Dependent Claim
15 words
Measuring probe according to claim 1, characterized in that said sheath (2) consists of metal.
Claim 4
Dependent Claim
29 words
Measuring probe according to claim 2, characterized in that said locking means (3) consists of metal, preferably of sphere-like contour, which is welded or soldered to said sheath (2).
Claim 5
Dependent Claim
34 words
Measuring probe according to at least one of the preceding claims wherein said locking means (3) consists of metal, characterized in that said wire (5) is welded or soldered to said locking means (3).
Claim 6
Dependent Claim
70 words
Method for manufacturing a measuring probe according to at least one of the preceding claims wherein said sheath (2) as well as said locking means (3) consist of metal, characterized in that said wire (5) is first passed through said sheath (2), and then said locking means (3) is welded or soldered to said sheath (2) as well as to said wire (5) in a single welding or soldering process.
Claim 7
Dependent Claim
22 words
Method according to claim 5 with welded connections, characterized in that welding is performed by a laser, preferably in an argon atmosphere.
Claim 8
Dependent Claim
20 words
Method according to claim 5 or 6, characterized in that the outer side of said locking means (3) is electropolished.
Claim 9
Dependent Claim
36 words
Measuring probe according to at least one of the preceding claims wherein said sheath (2) comprises at least one window (4a, 4b, 4c), characterized in that the edges of said window (4a, 4b, 4c) are rounded.
Claim 10
Dependent Claim
27 words
Method for manufacturing a measuring probe according to claim 8, characterized in that the window (4a, 4b, 4c) in said sheath (2) is manufactured by spark erosion.
References Cited (Backward Citations)
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