Disposable lancet with re-cocking prevention means
First Claim
1. A lancet, comprising:
- a proximal mounting platform;
a shuttle biasing means connected to said proximal mounting platform;
a shuttle having a distally protruding needle with a pointed needle distal end, said shuttle being mounted on said shuttle biasing means;
a housing first section having a tubular first section side wall engagingly fitted to said mounting platform;
a housing second section having a distal needle passing opening and having a tubular second section side wall fitted in telescopic relation to said first section side wall;
a shuttle cocking mechanism including a shuttle shoulder having a shoulder distal face, two spaced apart and resilient shuttle engaging arms extending distally from said mounting platform and tilted toward each other and having inwardly protruding grip fingers positioned to fit over said shoulder distal face and thus engage said shuttle shoulder;
a proximally converging taper portion of said second section side wall positioned to abut and wedgingly fit between and separate said shuttle engaging arms as said housing first and second sections are telescopingly collapsed together,and a re-cocking prevention means comprising outwardly ramped distal arm tips obstructing and deflecting re-entry of said shuttle between said engaging arms.
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Accused Products
Abstract
A lancet includes a proximal mounting platform; a shuttle biasing spring extending distally from the mounting platform; a shuttle having distally protruding needle, the shuttle being mounted on the shuttle biasing spring; a housing first section having a tubular first section side wall engagingly fitted to the mounting platform and fitted in telescopic relation to a tubular second section side wall of a housing second section which has a distal needle passing opening; a shuttle cocking mechanism including a shuttle shoulder having a shoulder distal face, two spaced apart and resilient shuttle engaging arms extending distally from the mounting platform and tilted toward each other and having inwardly protruding grip fingers positioned to fit over the shoulder distal face and thus engage the shuttle shoulder, and having outwardly ramped distal arm tips obstructing and deflecting re-entry of the shuttle between the engaging arms.
18 Citations
9 Claims
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1. A lancet, comprising:
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a proximal mounting platform; a shuttle biasing means connected to said proximal mounting platform; a shuttle having a distally protruding needle with a pointed needle distal end, said shuttle being mounted on said shuttle biasing means; a housing first section having a tubular first section side wall engagingly fitted to said mounting platform; a housing second section having a distal needle passing opening and having a tubular second section side wall fitted in telescopic relation to said first section side wall; a shuttle cocking mechanism including a shuttle shoulder having a shoulder distal face, two spaced apart and resilient shuttle engaging arms extending distally from said mounting platform and tilted toward each other and having inwardly protruding grip fingers positioned to fit over said shoulder distal face and thus engage said shuttle shoulder; a proximally converging taper portion of said second section side wall positioned to abut and wedgingly fit between and separate said shuttle engaging arms as said housing first and second sections are telescopingly collapsed together, and a re-cocking prevention means comprising outwardly ramped distal arm tips obstructing and deflecting re-entry of said shuttle between said engaging arms. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A lancet, comprising:
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a proximal mounting platform; a shuttle biasing means connected to said proximal mounting platform; a shuttle having a distally protruding needle with a pointed needle distal end, said shuttle being mounted on said shuttle biasing means; a housing first section having a tubular first section side wall engagingly fitted to said mounting platform; a housing second section having a distal needle passing opening and having a tubular second section side wall fitted in telescopic relation to said first section side wall; a shuttle cocking mechanism including a shuttle shoulder having a shoulder distal face, two spaced apart and resilient shuttle engaging arms extending distally from said mounting platform and tilted toward each other and having inwardly protruding grip fingers positioned to fit over said shoulder distal face and thus engage said shuttle shoulder; a proximally converging taper portion of said second section side wall positioned to abut and wedgingly fit between and separate said shuttle engaging arms as said housing first and second sections are telescopingly collapsed together, and a re-cocking prevention means comprising the inward resilient biasing of said engaging arms.
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Specification