Cutaneous injection delivery under suction
First Claim
1. A device for delivery of a fluid cutaneously comprising:
- a) a housing having a peripheral edge;
b) a needle in the housing for piercing a cutaneous layer;
c) a bladder for containing fluid for injection below the cutaneous layer;
d) an area transversely within the peripheral edge of the housing and through which the proximal end of the needle may be directed, and the area being for receiving the surface of the cutaneous layer about which the proximal end of the needle is to pierce to effect an injection of fluid; and
e) a suction generator for creating a suction force at the area thereby to urge the cutaneous layer towards the area within the peripheral edge of the housing and thereby provide a stabilizing force to the cutaneous layer;
f) the arrangement of the needle, bladder and suction generator being such that the needle is caused to move by the suction force through the transverse area and thereby pierce the surface of the cutaneous layer; and
permitting the expulsion of fluid from the bladder into the distal end of the needle and thereby permit the expulsion of fluid through the proximal end of the needle.
1 Assignment
0 Petitions
Accused Products
Abstract
The delivery of a fluid cutaneously is effected by generating a suction force on a surface of a housing. A surface of a cutaneous layer is received under the suction force about which the proximal end of a needle thereby to pierce the cutaneous surface and to effect an injection of fluid. There is generated a suction force to operate the movement of a needle in the housing. The needle is moved under the suction force from the housing thereby to permit piercing a cutaneous layer. The bladder for containing fluid is emptied under the suction into the distal end of the needle and thereby permit the expulsion of fluid through the proximal end of the needle for injection below the cutaneous layer.
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Citations
52 Claims
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1. A device for delivery of a fluid cutaneously comprising:
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a) a housing having a peripheral edge;
b) a needle in the housing for piercing a cutaneous layer;
c) a bladder for containing fluid for injection below the cutaneous layer;
d) an area transversely within the peripheral edge of the housing and through which the proximal end of the needle may be directed, and the area being for receiving the surface of the cutaneous layer about which the proximal end of the needle is to pierce to effect an injection of fluid; and
e) a suction generator for creating a suction force at the area thereby to urge the cutaneous layer towards the area within the peripheral edge of the housing and thereby provide a stabilizing force to the cutaneous layer;
f) the arrangement of the needle, bladder and suction generator being such that the needle is caused to move by the suction force through the transverse area and thereby pierce the surface of the cutaneous layer; and
permitting the expulsion of fluid from the bladder into the distal end of the needle and thereby permit the expulsion of fluid through the proximal end of the needle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A device for delivery of a fluid cutaneously comprising:
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a) a housing having a peripheral edge;
b) a needle in the housing for piercing a cutaneous layer;
c) a bladder for containing fluid for injection below the cutaneous layer;
d) an area transversely within peripheral edge of the housing and through which a proximal end of the needle may be directed, and the area being for receiving the surface of the cutaneous layer about which the proximal end of the needle is to pierce to effect an injection of fluid;
e) means for generating a suction force at the area thereby to urge the cutaneous layer towards the area within the peripheral edge of the housing and thereby provide a stabilizing force to the cutaneous layer, the suction force causing the needle to move through the transverse area and thereby pierce the surface of the cutaneous layer, the suction force permitting the expulsion of fluid from the bladder into a distal end of the needle and thereby permit the expulsion of fluid through a proximal end of the needle;
f) mounting means for supporting a needle, and wherein the suction force causes movement of the mounting means, thereby causing the needle to move between a position of repose relatively withdrawn from the transverse area and a position extending through the transverse area the suction force permitting the bladder to move towards the proximal end of the needle, and thereby permit the distal end to pierce the bladder and permit fluid from the bladder to enter the distal end of the needle and subsequently exit the proximal end of the needle; and
g) the bladder being formed in part of elastomeric material whereby the elastomeric material retains a force on the fluid in the bladder. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 51)
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34. A method for delivery of a fluid cutaneously comprising:
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a) generating a suction force on a surface of a housing thereby to receive under the suction force a surface of a cutaneous layer about which the proximal end of a needle is to pierce to effect an injection of fluid;
b) generating a suction force to operate the movement of a needle in the housing;
c) moving a needle under the suction force from the housing thereby to permit piercing a cutaneous layer; and
d) emptying a bladder for containing fluid into the distal end of the needle and thereby permit the expulsion of fluid through the proximal end of the needle for injection below the cutaneous layer. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A method for delivery of a fluid cutaneously comprising:
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a) generating a suction force on a surface of a housing thereby to receive under the suction force a surface of a cutaneous layer about which the proximal end of a needle is to pierce to effect an injection of fluid;
b) generating a suction force to operate the movement of a needle in the housing;
c) moving a needle under the suction force from the housing thereby to permit piercing a cutaneous layer;
d) emptying a bladder for containing fluid into the distal end of the needle and thereby permit the expulsion of fluid through the proximal end of the needle for injection below the cutaneous layer;
e) moving the needle to move through the transverse area under a suction force and thereby cause the needle to move between a position of repose relatively withdrawn from the transverse area and a position extending through the transverse area; and
f) moving the bladder to move under a suction force towards the proximal end of the needle, and thereby permit the distal end to pierce the bladder and permit fluid from the bladder to enter the distal end of the needle and subsequently exit the proximal end of the needle. - View Dependent Claims (48, 49, 50)
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52. A device for delivery of a fluid cutaneously comprising:
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a) a housing having a peripheral edge;
b) a needle in the housing for piercing a cutaneous layer;
c) a bladder for containing fluid for injection below the cutaneous layer;
d) an area transversely within the peripheral edge of the housing and through which the proximal end of the needle may be directed, and the area being for receiving the surface of the cutaneous layer about which the proximal end of the needle is to pierce to effect an injection of fluid; and
e) a generator for creating a pressure differential, selectively a higher pressure force, or a suction pressure, and means to transmit the pressure differential as a suction at the area thereby to urge the cutaneous layer towards the area within the peripheral edge of the housing and thereby provide a stabilizing force to the cutaneous layer;
f) the arrangement of the needle, bladder and generator being such that the needle is caused to move by the pressure differential, selectively higher pressure force or the suction pressure through the transverse area and thereby pierce the surface of the cutaneous layer; and
permitting the expulsion of fluid from the bladder into the distal end of the needle and thereby permit the expulsion of fluid through the proximal end of the needle.
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Specification