Needle device for safely collecting blood or injecting drugs
First Claim
1. A needle device for safely collecting blood or injecting drugs, said device comprisinga needle and a housing for said needle, said housing including an aperture at one end;
- means slidably disposed within said housing for mounting said needle, said mounting means being shaped at one end to releasably mate with a container constructed to collect or deliver a liquid, said needle being capable of penetrating a mated container when sufficient force is applied,means for releasably locking said mounting means in said housing in a least two positions, one of said positions being a withdrawn position locating said needle so as to be withdrawn into and surrounded by said housing prior to use, and the other position being an extended position in which said needle extends and projects through said aperture,permanent locking means for locking said needle and said mounting means permanently against further movement in said housing when said mounting means is moved from said extended position to a third locked position beyond said withdrawn position,means defining a slot in the side of said housing, and a button mounted in said housing slot for manual engagement by an operator,means on said button for engaging said mounting means when said button is moved rearwardly towards said third locked position, said button being free of means for engaging said mounting means when said button is moved towards said extended position,whereby said needle and said mounting means can be withdrawn into said housing by moving said button rearwardly,and further including either a blood collection container or a drug-injecting container preloaded with a drug, said either container being releasably engagable with one of said needle ends within said mounting means and within said housing, said releasable locking means in said withdrawn position being effective to release said mounting means and said needle only as a result of a contact force between said needle and either of said containers that is insufficient to cause said needle to penetrate either of said containers.
1 Assignment
0 Petitions
Accused Products
Abstract
A needle device and method of use are disclosed, wherein the needle moves out of and into a protective housing, between two operative positions, one of which causes the housing to shield the needle. Each operative position includes releasable locking detents to temporarily hold the needle in one of those positions, the holding force of one being less than the other. A third position beyond the one that shields the needle in the housing is used to permanently lock the needle in the housing against accidental reuse.
The needle device can be used with a blood collection container or a syringe drug delivery container, each one releasably mating with the device during use.
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Citations
23 Claims
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1. A needle device for safely collecting blood or injecting drugs, said device comprising
a needle and a housing for said needle, said housing including an aperture at one end; -
means slidably disposed within said housing for mounting said needle, said mounting means being shaped at one end to releasably mate with a container constructed to collect or deliver a liquid, said needle being capable of penetrating a mated container when sufficient force is applied, means for releasably locking said mounting means in said housing in a least two positions, one of said positions being a withdrawn position locating said needle so as to be withdrawn into and surrounded by said housing prior to use, and the other position being an extended position in which said needle extends and projects through said aperture, permanent locking means for locking said needle and said mounting means permanently against further movement in said housing when said mounting means is moved from said extended position to a third locked position beyond said withdrawn position, means defining a slot in the side of said housing, and a button mounted in said housing slot for manual engagement by an operator, means on said button for engaging said mounting means when said button is moved rearwardly towards said third locked position, said button being free of means for engaging said mounting means when said button is moved towards said extended position, whereby said needle and said mounting means can be withdrawn into said housing by moving said button rearwardly, and further including either a blood collection container or a drug-injecting container preloaded with a drug, said either container being releasably engagable with one of said needle ends within said mounting means and within said housing, said releasable locking means in said withdrawn position being effective to release said mounting means and said needle only as a result of a contact force between said needle and either of said containers that is insufficient to cause said needle to penetrate either of said containers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. In a needle device for safely collecting blood or injecting drugs, said device including a needle, an outer housing with a long axis, means for mounting said needle, said mounting means being slidably mounted for movement along said axis within said housing, said outer housing having a first open end and an opposite second end that is closed except for a needle aperture aligned with said needle, and control means for manually engaging said needle mounting means to slide it from an extended position where the needle is extended out through said aperture, to a withdrawn position in which said needle is withdrawn in said housing;
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the improvement wherein said control means is independently slidable within said housing and disconnected from said needle mounting means so as to be free to slide towards said aperture without advancing said needle, and said control means includes a member that projects into contact with said needle mounting means as said control means is withdrawn away from said aperture, so that said control means is effective to move said needle relative to said housing only in a withdrawal of said needle from said extended position to said withdrawn position, and inadvertent extensions of said needle out said aperture by accidental movement of said control means are not possible. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A needle device for safely collecting blood or injecting drugs, said device comprising
a needle and a housing for said needle, said housing including an aperture at one end; -
means slidably disposed within said housing for mounting said needle, said mounting means being shaped at one end to releasably mate with a container constructed to collect or deliver a liquid, said needle being capable of penetrating a mated container when sufficient force is applied, means for releasably locking said mounting means in said housing in at least two positions, one of said positions being a withdrawn position wherein said needle is withdrawn and surrounded by said housing and the other position being an extended position in which said needle extends and projects through said aperture, and a button slidably mounted in a slot in said housing, said button including a portion inside said housing that engages said mounting means only when said button is moved rearwardly from said extended position to said withdrawn position.
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19. A needle device for safely collecting blood or injecting drugs, said device comprising
a needle and a housing for said needle, said housing including an aperture at one end; -
means slidably disposed within said housing for mounting said needle, said mounting means being shaped at one end to releasably mate with a container constructed to collect or deliver a liquid, said needle being capable of penetrating a mated container when sufficient force is applied, either a blood collection container or a drug-injecting container preloaded with a drug, said either container being releasably engagable with one of said needle ends within said housing, means for releasably locking said mounting means in said housing in at least two positions, one of said positions being a withdrawn position locating said needle so as to be withdrawn into and surrounded by said housing prior to use and the other position being an extended position in which said needle extends and projects through said aperture, means for locking said needle and said mounting means permanently against further movement in said housing when said mounting means is moved from said extended position to a third position beyond said withdrawn position, and further including a slot in the side of said housing and a button mounted in said housing slot for manual engagement by an operator, said button being free of means for engaging said mounting means when said button is moved towards said extended position, and means on said button for engaging said mounting means when said button is moved rearwardly towards said third locked position, whereby said needle and said mounting means can be withdrawn into said housing by moving said button rearwardly.
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20. A method for safely injecting a needle into a mammalian body to collect blood or inject a drug, using a needle device comprising a needle, a protective housing with an aperture, and means for mounting said needle to slide within said housing and in and out of said aperture,
the method comprising the step of a) obtaining said needle device from a source of supply with said needle in a releasably locked first position that is completely and protectively withdrawn into said housing, b) locating said needle device at an injection site on a mammalian body, c) pushing said needle axially without rotation, out of said first position to a releasably locked second position with the needle extended and exposed, by pushing a container against said needle without penetrating said container with said needle, said container being constructed to collect blood or deliver a drug, d) injecting the needle into the mammalian body and releasably injecting said needle into said container, e) collecting blood or injecting a drug through said needle, f) withdrawing said needle from the mammalian body, g) withdrawing said needle from said extended position to said withdrawn position, and h) moving and permanently locking said needle to a third position different from said withdrawn and extended positions.
Specification