PUNCTURE SET
First Claim
1. A puncture set comprising:
- a puncture needle unit having a puncture needle including a needle body having a sharp needle point at a distal end thereof and a needle hub fixed to a proximal end of the needle body, and a tubular casing housing the puncture needle longitudinally movably therein and having an opening through which the needle point can project; and
a puncture device having a housing, a ring-shaped mount disposed on a distal end portion of the housing for holding the casing removably mounted therein, and a plunger housed in the housing and having a coupling for being coupled to the needle hub in a mounted state in which the casing is mounted in the mount,wherein the casing has a plurality of casing protrusions that project on an outer circumferential surface thereof and which are disposed circumferentially along the outer circumferential surface, and the mount has a plurality of mount protrusions that project on an inner circumferential surface thereof and which are disposed circumferentially along the inner circumferential surface, at least one of the mount protrusions being positioned between an adjacent two of the casing protrusions in the mounted state.
1 Assignment
0 Petitions
Accused Products
Abstract
A puncture set includes a puncture needle unit and puncture device. The puncture needle unit includes a puncture needle and a tubular casing, with the puncture needle having a needle hub and a needle body possessing a needle point. The tubular casing movably receives the puncture needle and has an opening from which the needle point can project. The puncture device has a housing, an installation section at which the casing is removably installed, and a plunger having a connection section connected to the needle hub in an installed state where the casing is installed on the installation section. Casing-side projections project from the outer periphery of the casing and are circumferentially arranged. Installation section-side projections project from the inner periphery of the installation section and are circumferentially arranged. In the installed state, at least one installation section-side projection is located between adjacent casing-side projections.
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Citations
17 Claims
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1. A puncture set comprising:
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a puncture needle unit having a puncture needle including a needle body having a sharp needle point at a distal end thereof and a needle hub fixed to a proximal end of the needle body, and a tubular casing housing the puncture needle longitudinally movably therein and having an opening through which the needle point can project; and a puncture device having a housing, a ring-shaped mount disposed on a distal end portion of the housing for holding the casing removably mounted therein, and a plunger housed in the housing and having a coupling for being coupled to the needle hub in a mounted state in which the casing is mounted in the mount, wherein the casing has a plurality of casing protrusions that project on an outer circumferential surface thereof and which are disposed circumferentially along the outer circumferential surface, and the mount has a plurality of mount protrusions that project on an inner circumferential surface thereof and which are disposed circumferentially along the inner circumferential surface, at least one of the mount protrusions being positioned between an adjacent two of the casing protrusions in the mounted state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification