Split pressure ring for lancing device and method of operation
First Claim
1. An apparatus for lancing the skin of a test subject, comprising:
- a lancing device for puncturing skin; and
a pressure ring having a collar configured to fit on an end of the lancing device, the pressure ring including a skirt on said collar and a flared potion flaring from said skirt for contacting skin, the pressure ring including at least one longitudinal slit in said flared portion.
2 Assignments
0 Petitions
Accused Products
Abstract
A pressure ring for a lancing device for holding open a skin puncture while collecting a blood sample includes a collar that fits onto the end of a lancing device. A skirt is provided on the collar and a flared portion depends from the skirt. At least one axial slit is formed in the skirt. The pressure ring is made of a flexible material such as polypropylene such that when the lancing device with a pressure ring is placed on a person'"'"'s skin and pressure is applied, the slits spread apart stretching the skin for a puncture by a lance in the lancing device. Once a puncture has been made, the pressure ring holds the puncture wound open to allow bleeding. Removing the lancing device from the puncture site releases the skin allowing the puncture wound to close.
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Citations
20 Claims
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1. An apparatus for lancing the skin of a test subject, comprising:
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a lancing device for puncturing skin; and
a pressure ring having a collar configured to fit on an end of the lancing device, the pressure ring including a skirt on said collar and a flared potion flaring from said skirt for contacting skin, the pressure ring including at least one longitudinal slit in said flared portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for drawing blood, comprising:
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a lancing device including a first end, a lance mounted in said lancing device, a lance driver in said lancing device for driving said lance out of said first end, and a pressure ring mounted on said first end of said lancing device, said pressure ring including a collar, a skirt extending from said collar, a flared portion extending from said skirt, and at least one slit in said flared portion. - View Dependent Claims (11, 12, 16, 17, 18)
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13. The system claim in 10 said flared portion being linear.
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14. The system claim in 10 said flared portion being curvilinear.
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15. The system claim in 10 said flared portion being polypropylene.
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19. A method of applying pressure on a puncture site of a lancing device, said lancing device including a body with a first end, a lance in said body and a driver for driving said lance out of said first end, a lance in said body and a driver for driving said lance out of said first end and into a puncture site, a pressure ring mounted on said first end of said body of said lancing device, said pressure ring including a skirt and flared portion and at least one slit in said flared portion, comprising:
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placing the flared portion of said pressure ring on a puncture site; and
applying force on said pressure ring to deform at least said flared portion of said pressure ring. - View Dependent Claims (20)
driving said lance into said pressure site; and
maintaining said force on said pressure ring until sufficient sample is drawn from said puncture site.
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Specification