EP0694286A2
Expired / Lapsed
EP
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Lancet actuator devices
Assignee: Ryder International Corp
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Filing: 1995-07-21
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Granted: —
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Expires: 2015-07-21
Abstract
Abstract A lancet actuator device (10, 110) and mechanism for sequentially advancing and retracting a lancet blade (12, 112) includes a housing (16, 116) having an aperture (22, 122) for operating projection of the lancet blade. The actuator mechanism includes a drive spring (26, 126) mounted in the housing (16, 116) and arranged to drive pivotal motion of the lancet blade (12, 112) including sequential thrusting of the blade from the housing aperture (22, 122) followed by immediate, pivotally reverse retraction of the blade from the aperture into the housing as the spring deenergizes.
Inventors
- 👤 Richard Micheal Davis
- 👤 Stephen Perry Lisak
- 👤 Rowland William Kanner
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 20:59
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/15; A61B5/150007; A61B5/150885; A61B5/150893; A61B5/150015; A61B5/150022; A61B5/150374; A61B5/150381; A61B5/150442; A61B5/150465; A61B5/151; A61B5/15101; A61B5/15103; A61B5/15107; A61B5/15113; A61B5/15115; A61B5/15117; A61B5/15126; A61B5/15128; A61B5/15142; A61B5/15144
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
108 words
A lancet actuator device (10, 110) for sequentially advancing and retracting a lancet blade (12, 112) in a skin penetrating operation, comprising a housing (16, 116) containing a lancet blade carrier (14, 114), pivotally mounted therein and having an aperture (22, 122) for projection therethrough of a blade portion (12, 112) of the blade carrier (14, 114), characterized by spring means (26, 126) mounted in said housing and arranged to drive pivotal motion of said blade carrier (14, 114) and blade portion (12, 112) including sequential thrusting of said blade portion from said aperture followed by immediate retracting of the blade portion from said aperture into said housing.
Claim 2
Dependent Claim
34 words
A lancet actuator device according to Claim 1, characterized in that spring means (26, 126) is arranged for pivotal motion itself during drive of said blade carrier pivotal motion in said skin penetration operation.
Claim 3
Dependent Claim
33 words
A lancet actuator device according to Claim 1 or Claim 2, characterized in that said spring means has a bearing portion (28, 128) which is rotatably journaled (14a, 117) on said blade carrier.
Claim 4
Dependent Claim
55 words
A lancet actuator device according to any one of Claims 1 to 3, characterized in that said spring means (26, 126) includes a first end (30) thereof rotationally journaled (32) on said housing (16, 116) and a second end (28, 128) thereof bearing upon said blade carrier (14, 114) to drive said pivotal motion thereof.
Claim 5
Dependent Claim
74 words
A lancet actuator device according to any one of Claims 1 to 4, characterized in that said spring means comprises a torsion spring (26, 126) arranged to uncoil as it drives the pivotal motion of said blade carrier (14, 114) and blade portion (12, 112) through the sequence of thrusting of said blade portion from said aperture (22, 122) followed by immediate pivotal retracting of the blade portion from said aperture into said housing.
Claim 6
Dependent Claim
35 words
A lancet actuator device according to Claim 5, characterized in that said torsion spring (26, 126) includes a coil portion (27, 127) arranged to rotate about an end portion (30) journaled (32) on said housing.
Claim 7
Dependent Claim
53 words
A lancet actuator device according to Claim 5 or Claim 6, characterized in that said torsion spring (26, 126) includes a first end thereof (30) rotationally journaled (32) in said housing and a second end (28, 128) thereof bearing (14a, 117) upon said blade carrier (14, 114) to drive said pivotal motion thereof.
Claim 8
Dependent Claim
36 words
A lancet actuator device according to any one of Claims 1 to 7, characterized in that said blade carrier (14, 114) continuously bears on a fixed pivot (18, 118) throughout said pivotal thrusting and pivotal retraction.
Claim 9
Dependent Claim
68 words
A lancet actuator device (10, 110) for skin penetration operation, comprising: a displaceable blade carrier (14, 114) and blade portion (12, 112) arranged for thrusting into a skin penetration position, characterized by a blade impact impression structure (52) arranged in a displacement path of said blade carrier to produce an impression of impact thereagainst by said blade carrier and serving as an indicator of the blade carrier displacement.
Claim 10
Dependent Claim
39 words
A lancet actuator device as in Claim 9, characterized in that said impact impression structure (52) comprises a generally pointed surface (52) capable of distortion upon impact by said blade carrier (14, 114) to define said impact impression thereof.
Claim 11
Dependent Claim
38 words
A lancet actuator device according to Claim 9, further comprising a housing (16, 116) containing said blade carrier (14, 114) and blade portion (12, 112), characterized by and having said impact impression structure (52) formed on said housing.
Claim 12
Dependent Claim
24 words
A lancet actuator device according to Claim 11, characterized in that said impact impression structure (52) is internally formed on said housing (16, 116).
Claim 13
Dependent Claim
43 words
A lancet actuator device according to Claim 12, characterized in that said impact impression structure (52) comprises an apex (52) formed within said housing (16, 116) and capable of blunting by impact from said blade structure (14, 114) to produce an indicator thereof.
Claim 14
Dependent Claim
153 words
A lancet actuator device (10, 110) for sequentially advancing and retracting a lancet blade (12, 112) in a skin penetration operation, comprising: a housing (16, 116) containing a lancet blade carrier (14, 114) and having an aperture (22, 122) for projection therethrough of a blade portion (12, 112) on the blade carrier; spring means (26, 126) arranged to drive pivotal motion of said blade carrier and blade portion including sequential thrusting of said blade portion from said aperture followed by immediate retracting of the blade portion from said aperture into said housing as said spring means deenergizes, and wherein said blade portion includes a cutting edge (12, 112), characterized in that said pivotal motion of said blade structure is arranged to thrust said cutting edge in slicing motion through a skin penetration position in which said cutting edge is oriented substantially parallel in relation to a longitudinal dimension of said aperture (22, 122).
Claim 15
Dependent Claim
27 words
A lancet actuator device according to Claim 14, characterized in that said cutting edge (12, 112) includes a linear portion (12, 112) in said substantially parallel relation.
References Cited (Backward Citations)
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