Reusable breach loading target pressure activated lancet firing device
First Claim
1. A reusable breach loading target pressure activated lancet firing device for use with a lancet including a handle portion and a lancet point extending outwardly from a distal end of the handle portion comprising:
- a hollow housing including a distal end, a proximal end and a side wall therebetween, said housing having an aperture in said distal end and a side aperture defining a breach in said side wall;
a trigger member movably engaged in said housing having a distal end extending outwardly from said distal aperture;
a sled slidably engaged within said housing adjacent to said trigger member including lancet engagement means for releasably engaging the lancet handle portion in order to permit the lancet point to extend outwardly from a distal end of said sled when the lancet is engaged therein, said sled capable of sliding to a first rest position with said lancet engagement means being accessible from said side aperture, the lancet point being maintained internally of said distal aperture when the lancet handle portion is engaged in said lancet engagement means and said sled is in said first position;
a side hood substantially covering said side aperture, said hood being movably engaged to said housing so that said hood may be opened to expose said lancet engagement means;
spring means positioned in said housing for biasing the distal end of said sled toward the distal end of said housing;
sear means for holding said sled in a second position in a direction toward said proximal end of said housing so that said spring means is partially deflected and cooperating means on said side hood and said sled for facilitating the movement of said sled toward said proximal end of said housing, deflecting said spring means and engaging said sear means; and
trigger means for releasing said sear means and allowing said sled to slide toward said distal aperture to a third position, said sled being closer to said distal end of said housing in said third position than in said first position, the lancet point, when the lancet handle portion is engaged in said lancet engagement means, being positioned outwardly from said distal aperture when said sled is in said third position, the activation of said trigger means being responsive to contact pressure between the patient'"'"'s skin in an area adjacent to the site of the intended skin puncture and said trigger member.
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Accused Products
Abstract
A reusable breach loading target pressure activated lancet firing device for use with a lancet includes a sled which releasably engages the lancet so that the lancet point may extend outwardly from a distal end of the sled. The sled is substantially contained and movably engaged within a housing having a distal aperture at its distal end and a side aperture defining a breach to allow access to the sled for engaging and disengaging the lancet. A spring is provided for biasing the distal end of the sled toward the distal end of the housing. A cocking mechanism positions and releasably holds the sled in a position in a direction toward the proximal end of the housing so that the spring means is partially deflected. A trigger mechanism for releasing the cocking mechanism and allowing the sled to move toward the distal aperture, also allows the lancet, when engaged in the sled, to project outwardly from the distal aperture. The trigger mechanism is activated by contact pressure between the patient'"'"'s skin and the trigger mechanism.
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Citations
22 Claims
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1. A reusable breach loading target pressure activated lancet firing device for use with a lancet including a handle portion and a lancet point extending outwardly from a distal end of the handle portion comprising:
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a hollow housing including a distal end, a proximal end and a side wall therebetween, said housing having an aperture in said distal end and a side aperture defining a breach in said side wall; a trigger member movably engaged in said housing having a distal end extending outwardly from said distal aperture; a sled slidably engaged within said housing adjacent to said trigger member including lancet engagement means for releasably engaging the lancet handle portion in order to permit the lancet point to extend outwardly from a distal end of said sled when the lancet is engaged therein, said sled capable of sliding to a first rest position with said lancet engagement means being accessible from said side aperture, the lancet point being maintained internally of said distal aperture when the lancet handle portion is engaged in said lancet engagement means and said sled is in said first position; a side hood substantially covering said side aperture, said hood being movably engaged to said housing so that said hood may be opened to expose said lancet engagement means; spring means positioned in said housing for biasing the distal end of said sled toward the distal end of said housing; sear means for holding said sled in a second position in a direction toward said proximal end of said housing so that said spring means is partially deflected and cooperating means on said side hood and said sled for facilitating the movement of said sled toward said proximal end of said housing, deflecting said spring means and engaging said sear means; and trigger means for releasing said sear means and allowing said sled to slide toward said distal aperture to a third position, said sled being closer to said distal end of said housing in said third position than in said first position, the lancet point, when the lancet handle portion is engaged in said lancet engagement means, being positioned outwardly from said distal aperture when said sled is in said third position, the activation of said trigger means being responsive to contact pressure between the patient'"'"'s skin in an area adjacent to the site of the intended skin puncture and said trigger member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A reusable breach loading target pressure activated lancet firing device for use with a lancet including a handle portion and a point comprising:
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a sled including means for releasably engaging the lancet so that, upon loading, the lancet point extends outwardly from a distal end of said sled; a housing including an aperture through a distal end of said housing, said sled being substantially contained within said housing and movably engaged therein, said housing further including a side aperture to allow access to said sled for engaging and disengaging the lancet; means for biasing the distal end of said sled toward the distal end of said housing; a side hood substantially covering said side aperture, said hood being movably engaged to said housing so that said hood may be opened to expose said lancet engagement means; and cocking means for positioning and releasably holding said sled in a position in a direction toward said proximal end of said housing so that said biasing means is energized, said cocking means including cooperating means on said sled and said side hood for facilitating the movement of said sled toward said proximal end of said housing, said cocking means including trigger means for releasing said cocking means and allowing said sled to move toward said distal aperture and allowing the lancet point, when the lancet is engaged in said sled, to project outwardly from said distal aperture, the activation of said trigger means being responsive to contact pressure between the patient'"'"'s skin in an area adjacent to the site of the intended skin puncture and said trigger means.
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15. A reusable breach loading target pressure activated lancet firing device for use with a lancet including a handle portion and a lancet point extending outwardly from a distal end of the handle portion comprising:
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a hollow housing including a distal end, a proximal end and a side wall therebetween, said housing having an aperture in said distal end and a side aperture defining a breach in said side wall; a trigger member movably engaged in said housing having a distal end extending outwardly from said distal aperture; a sled slidably engaged within said housing adjacent to said trigger member including lancet engagement means for releasably engaging the lancet handle portion in order to permit the lancet point to extend outwardly from a distal end of said sled when the lancet is engaged therein, said sled capable of sliding to a first rest position with said lancet engagement means being accessible from said side aperture, the lancet point being maintained internally of said distal aperture when the lancet handle portion is engaged in said lancet engagement means and said sled is in said first position; spring means positioned in said housing for biasing the distal end of said sled toward the distal end of said housing; sear means for holding said sled in a second position in a direction toward said proximal end of said housing so that said spring means is partially deflected; a side hood substantially covering said side aperture, said hood being movably engaged to said housing so that said hood may be opened to expose said lancet engagement means; a drive pin projecting inwardly from said side hood; means on said sled for accepting said drive pin so that closure of said side hood causes said drive pin to travel in a path to engage said drive pin accepting means and move said sled toward said proximal end of said housing, deflecting said spring means and engaging said sear means; and trigger means for releasing said sear means and allowing said sled to slide toward said distal aperture to a third position, said sled being closer to said distal end of said housing in said third position than in said first position, the lancet point, when the lancet handle portion is engaged in said lancet engagement means, being positioned outwardly from said distal aperture when said sled is in said third position, the activation of said trigger means being responsive to contact pressure between the patient'"'"'s skin in an area adjacent to the site of the intended skin puncture and said trigger member. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A reusable lancet firing device comprising:
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a lancet including a handle portion and a point; a sled including means for releasably engaging the lancet so that the lancet point extends outwardly from the distal end of the sled; a housing including an aperture through a distal end of said housing, said sled being substantially contained within said housing and movably engaged therein, said housing further including a side aperture to allow access to said sled for engaging and disengaging the lancet; spring means for biasing the distal end of said sled toward the distal end of said housing; a side hood substantially covering said side aperture, said hood being movably engaged to said housing so that said hood may be opened to expose said lancet engagement means; and cocking means for positioning and releasably holding said sled in a position in a direction toward said proximal end of said housing so that said spring means is energized, said cocking means including cooperating means on said sled and said side hood for facilitating the movement of said sled toward said proximal end of said housing, said cocking means including trigger means for releasing said cocking means and allowing said sled to move toward said distal aperture and allowing the lancet point to project outwardly from said distal aperture, the activation of said trigger means being responsive to contact pressure between the patient'"'"'s skin in an area adjacent to the site of the intended skin puncture and said trigger means.
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Specification