Handheld Medical Diagnostic Devices With Lancing Speed Control
First Claim
1. A portable handheld medical diagnostic device for sampling bodily fluids from a skin site of a patient, comprising:
- a protective enclosure;
a measurement system including a controller for facilitating a physiologic measurement;
a display device connected to the measurement system that displays information related to the physiologic measurement;
an elongated lancet structure having a skin piercing end and a blood transport portion adjacent the skin piercing end, the skin piercing end when displaced makes an incision at the skin site to produce an amount of bodily fluid from the skin site and in which the blood transport portion transports the amount of bodily fluid away from the skin site for use by the measurement system in making the physiological measurement;
a spring-driven motor assembly operatively connected to the lancet structure, wherein the spring-driven motor assembly displaces the lancet structure toward the skin site to make the incision for producing the amount of bodily fluid and retracts the lancet structure to carry the amount of bodily fluid away from the skin cite; and
a speed control mechanism that engages the spring-driven motor assembly as the spring-driven motor assembly retracts the lancet structure to decelerate the lancet structure as the lancet structure is retracted away from the skin site and into the protective enclosure.
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Accused Products
Abstract
A method of controlling lancing speed of a lancing structure of a portable handheld medical diagnostic device includes providing an elongated lancet structure having a skin piercing end and a blood transport portion adjacent the skin piercing end. The skin piercing end when displaced makes an incision at a skin site to produce an amount of bodily fluid from the skin site and in which the blood transport portion transports the amount of bodily fluid away from the skin site for use by a measurement system in making a physiological measurement. A spring-driven motor assembly is operatively connected to the lancet structure. The spring-driven motor assembly displaces the lancet structure toward the skin site to make the incision for producing the amount of bodily fluid and retracts the lancet structure to carry the amount of bodily fluid away from the skin cite. A speed control mechanism is engaged with the spring-driven motor assembly as the spring-driven motor assembly retracts the lancet structure thereby decelerating the lancet structure as the lancet structure is retracted away from the skin site.
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Citations
20 Claims
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1. A portable handheld medical diagnostic device for sampling bodily fluids from a skin site of a patient, comprising:
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a protective enclosure; a measurement system including a controller for facilitating a physiologic measurement; a display device connected to the measurement system that displays information related to the physiologic measurement; an elongated lancet structure having a skin piercing end and a blood transport portion adjacent the skin piercing end, the skin piercing end when displaced makes an incision at the skin site to produce an amount of bodily fluid from the skin site and in which the blood transport portion transports the amount of bodily fluid away from the skin site for use by the measurement system in making the physiological measurement; a spring-driven motor assembly operatively connected to the lancet structure, wherein the spring-driven motor assembly displaces the lancet structure toward the skin site to make the incision for producing the amount of bodily fluid and retracts the lancet structure to carry the amount of bodily fluid away from the skin cite; and a speed control mechanism that engages the spring-driven motor assembly as the spring-driven motor assembly retracts the lancet structure to decelerate the lancet structure as the lancet structure is retracted away from the skin site and into the protective enclosure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 14)
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8. A lancet control system for controlling lancing speed of a lancet structure for use with a portable handheld diagnostic device, the lancet control system comprising:
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an elongated lancet structure having a skin piercing end and a blood transport portion adjacent the skin piercing end, the skin piercing end when displaced makes an incision at a skin site to produce an amount of bodily fluid from the skin site and in which the blood transport portion transports the amount of bodily fluid away from the skin site for use by a measurement system in making a physiological measurement; a spring-driven motor assembly operatively connected to the lancet structure, wherein the spring-driven motor assembly displaces the lancet structure toward the skin site to make the incision for producing the amount of bodily fluid and retracts the lancet structure to carry the amount of bodily fluid away from the skin cite; and a speed control mechanism that engages the spring-driven motor assembly as the spring-driven motor assembly retracts the lancet structure to decelerate the lancet structure as the lancet structure is retracted away from the skin site. - View Dependent Claims (9, 10, 11, 12, 13, 19, 20)
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15. A method of controlling lancing speed of a lancing structure of a portable handheld medical diagnostic device, the method comprising:
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providing an elongated lancet structure having a skin piercing end and a blood transport portion adjacent the skin piercing end, the skin piercing end when displaced makes an incision at a skin site to produce an amount of bodily fluid from the skin site and in which the blood transport portion transports the amount of bodily fluid away from the skin site for use by a measurement system in making a physiological measurement; connecting a spring-driven motor assembly operatively to the lancet structure, wherein the spring-driven motor assembly displaces the lancet structure toward the skin site to make the incision for producing the amount of bodily fluid and retracts the lancet structure to carry the amount of bodily fluid away from the skin cite; and engaging a speed control mechanism with the spring-driven motor assembly as the spring-driven motor assembly retracts the lancet structure thereby decelerating the lancet structure as the lancet structure is retracted away from the skin site. - View Dependent Claims (16, 17, 18)
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Specification