Artificial kidney and an insertion guide used therein
First Claim
1. Insertion guide for inserting an arterial needle, which takes blood out from the body, and a venous needle, which returns purified blood into the body, into at least one fistula formed in a vein running beneath the skin of the arm, the insertion guide comprising:
- a holder having an arterial guide hole, which guides the arterial needle downwards at an incline from a shoulder side of the arm to a wrist side of the arm relative to the fistula, and a venous guide hole, which guides the venous needle downwards at an incline from the wrist side to the shoulder side relative to the fistula; and
a drug-supply flow-path for supplying one of a sterilizing solution, a pain relieving agent, and a haemostatic agent to the skin via one of the guide holes of the holder and a portion of the holder in a vicinity of the guide holes.
1 Assignment
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Accused Products
Abstract
An insertion guide is used for inserting an arterial needle, which takes blood out from the body, and a venous needle, which returns purified blood into the body, into one or two fistulae formed in a vein running beneath the skin of the arm. The insertion guide may include a holder having an arterial guide hole, which guides the arterial needle downwards at an incline from the shoulder side to the wrist side relative to the fistula, and a venous guide hole, which guides the venous needle downwards at an incline from the wrist side to the shoulder side relative to the fistula.
24 Citations
16 Claims
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1. Insertion guide for inserting an arterial needle, which takes blood out from the body, and a venous needle, which returns purified blood into the body, into at least one fistula formed in a vein running beneath the skin of the arm, the insertion guide comprising:
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a holder having an arterial guide hole, which guides the arterial needle downwards at an incline from a shoulder side of the arm to a wrist side of the arm relative to the fistula, and a venous guide hole, which guides the venous needle downwards at an incline from the wrist side to the shoulder side relative to the fistula; and
a drug-supply flow-path for supplying one of a sterilizing solution, a pain relieving agent, and a haemostatic agent to the skin via one of the guide holes of the holder and a portion of the holder in a vicinity of the guide holes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. Insertion guide for inserting ah arterial needle, Which takes blood out from the body, and a venous needle, which returns purified blood into the body, into at least one fistula formed in a vein running beneath the skin of the arm, the insertion guide comprising:
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a holder having an arterial guide hole which guides the arterial needle downwards at an incline from a shoulder side of the arm to a Wrist side of the arm relative to the fistula, and a venous guide hole, which guides the venous needle downwards at an incline from the wrist side to the shoulder side relative to the fistula; and
a stopper associated with said holder, the stopper being movable between an unlatched condition and a latched condition for securing the needles and the holder in a state in which the needles have been poked through the guide holes and their front ends have pierced the fistulae. - View Dependent Claims (11, 12)
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13. Insertion guide for inserting an arterial needle, which takes blood out from the body, and a venous needle, which returns purified blood into the body, into at least one fistula formed in a vein running beneath the skin of the arm, the insertion guide comprising:
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a holder having an arterial guide hole, which guides the arterial needle downwards at an incline from a shoulder side of the arm to a wrist side of the arm relative to the fistula, and a venous guide hole, which guides the venous needle downwards at an incline from the Wrist side to the shoulder side relative to the fistula; and
a base plate securable to the arm, the holder being rotatably attached to the base plate. - View Dependent Claims (14)
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15. Insertion guide for inserting an arterial needle, which takes blood out from the body, and a venous needle, which returns purified blood into the body, into at least one fistula formed in a vein running beneath the skin of the arm, the insertion guide comprising:
a holder having a plurality of arterial guide holes, which guide the arterial needle downwards at an incline from a shoulder side of the arm to a wrist side of the arm relative to the fistula, and a plurality venous guide holes, which guide the venous needle downwards at an incline from the wrist side to the shoulder side relative to the fistula. - View Dependent Claims (16)
Specification