US6730083B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Puncture cannula
Assignee: B Braun Melsungen AG
•
Filing: 2002-05-07
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Granted: 2004-05-04
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Expires: 2022-05-07
Abstract
Abstract A puncture cannula, particularly for nerve stimulation, comprises a steel cannula ( 10 ) attached to a cannula hub ( 11 ), and a cable ( 19 ) extending through an insertion channel ( 18 ) and having its core ( 21 ) connected to the steel cannula ( 10 ). The hub ( 11 ) of the cannula ( 10 ) comprises a metallic clamping element ( 24 ) formed with a first clamping slot engaging the steel cannula ( 10 ) and with a second clamping slot engaging the core ( 21 ) of the cable ( 19 ).
Inventors
- 👤 Helmut Freigang
- 👤 Manfred Seeber
- 👤 Klaus Siemon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:10
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/34; A61B17/3401
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
74 words
A puncture cannula, particularly for nerve stimulation, comprising a steel cannula attached to a cannula hub and a cable extending through an insertion channel of the cannula hub and having a core connected to the steel cannula, wherein the hub of the cannula comprises a metallic clamping element which is formed with a first clamping slot for engaging the steel cannula and with a second clamping slot for engaging the core of the cable.
Claim 2
Dependent Claim
74 words
A puncture cannula, particularly for nerve stimulation, comprising a steel cannula attached to a cannula hub and a cable extending through an insertion channel of the cannula hub and having a core connected to the steel cannula, wherein the hub of the cannula comprises a metallic clamping element which is formed with a first clamping slot for engaging the steel cannula and with a second clamping slot for engaging the core of the cable.
Claim 3
Dependent Claim
59 words
The puncture cannula according to claim 1 , wherein the clamping element comprises a plate arranged for displacement relative to the hub of the cannula in a direction transverse to the longitudinal direction of the steel cannula, which plate is adapted to be inserted into the hub of the cannula and in the inserted condition is fixed against withdrawal.
Claim 4
Dependent Claim
22 words
The puncture cannula according to claim 1 wherein the second clamping slot has cutting edges for penetrating an insulation of the cable.
Claim 5
Dependent Claim
28 words
The puncture cannula according to claim 2 , wherein the clamping slots are located behind each other in the plate and have a widened opening arranged between them.
Claim 6
Dependent Claim
25 words
The puncture cannula according to claim 1 , wherein the insertion channel is at least along a part of its length formed as a bore.
Claim 7
Dependent Claim
44 words
The puncture cannula according to claim 1 , wherein the hub of the cannula comprises a recess having the steel cannula and a portion of the cable passing therethrough, and wherein the recess is provided with a guideway for displacement of the clamping element.
Claim 8
Dependent Claim
15 words
The puncture cannula according to claim 6 , wherein the recess is filled with adhesive.
Claim 9
Dependent Claim
16 words
The puncture cannula according to claim 7 , wherein the said adhesive covers the clamping element.
Claim 10
Dependent Claim
80 words
A puncture cannula comprising a metallic needle, having a needle shaft defining an axis, extending into a cannula hub along a first bore and fixed to the cannula hub at an end opposite a needle tip; a cable comprising an electrically conductive core extending into the cannula hub along a second bore and fixed to the cannula hub; the electrically conductive core and the metallic needle being in electrical communication with one another by separately contacting a common clamping element.
Claim 11
Dependent Claim
80 words
A puncture cannula comprising a metallic needle, having a needle shaft defining an axis, extending into a cannula hub along a first bore and fixed to the cannula hub at an end opposite a needle tip; a cable comprising an electrically conductive core extending into the cannula hub along a second bore and fixed to the cannula hub; the electrically conductive core and the metallic needle being in electrical communication with one another by separately contacting a common clamping element.
Claim 12
Dependent Claim
24 words
The puncture cannula according to claim 9 , wherein the clamping element comprises two slots for receiving the conductive core and the metallic needle.
Claim 13
Dependent Claim
29 words
The puncture cannula according to claim 9 , wherein the clamping element comprises a slot comprising at least one cutting edge for cutting an insulation layer of the cable.
Claim 14
Dependent Claim
28 words
The puncture cannula according to claim 9 , wherein the first bore and the second bore have portions that are positioned at an acute angle from one another.
Claim 15
Dependent Claim
16 words
The puncture cannula according to claim 9 , wherein the cannula hub comprises a cavity recess.
Claim 16
Dependent Claim
23 words
The puncture cannula according to claim 13 , wherein the cavity recess is in communication with the first bore and the second bore.
Claim 17
Dependent Claim
16 words
The puncture cannula according to claim 14 , wherein the cavity recess is filled with adhesive.
Claim 18
Dependent Claim
115 words
A puncture cannula comprising: a cannula hub, a cannula hub first end, and a cannula hub second end; a needle attached to the cannula hub having a pointed tip extending away from the cannula hub first end; a hose for administering solutions attached to the cannula hub and extending away from the cannula hub second end; a cable comprising an electrically conductive core attached to a bore of the cannula hub; wherein the electrically conductive core of the cable is in electrical communication with the needle by separately attaching the needle and the cable to a clamping element, the clamping element comprising at least one cutting edge for cutting an insulation layer of the cable.
Claim 19
Dependent Claim
115 words
A puncture cannula comprising: a cannula hub, a cannula hub first end, and a cannula hub second end; a needle attached to the cannula hub having a pointed tip extending away from the cannula hub first end; a hose for administering solutions attached to the cannula hub and extending away from the cannula hub second end; a cable comprising an electrically conductive core attached to a bore of the cannula hub; wherein the electrically conductive core of the cable is in electrical communication with the needle by separately attaching the needle and the cable to a clamping element, the clamping element comprising at least one cutting edge for cutting an insulation layer of the cable.
Claim 20
Dependent Claim
17 words
The puncture cannula according to claim 16 , further comprising a cavity recess in the cannula hub.
Claim 21
Dependent Claim
16 words
The puncture cannula according to claim 17 , wherein the cavity recess is filled with adhesive.
Claim 22
Dependent Claim
25 words
The puncture cannula according to claim 16 , wherein the at least one cutting edge is part of a slot located on the clamping element.
Claim 23
Dependent Claim
21 words
The puncture cannula according to claim 19 , where the slot is defined by a tapering opening in the clamping element.
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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) | 2007-05-04 | 2007-11-03 | 2008-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-05-04 | 2011-11-03 | 2012-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-05-04 | 2015-11-03 | 2016-05-04 | $7700.00 | Window Closed / Lapsed |