Catheter assembly
AssigneeTerumo Kabushiki Kaisha
InventorMasahiro Ishida
Life of this patent
Estimating the term…
Abstract
A catheter assembly is disclosed, which includes a catheter, a catheter hub fixed to a base end portion of the catheter, an inner needle having a needlepoint, inserted into the catheter, a needle hub coupled to the inner needle, and a needle support portion for supporting the inner needle through the catheter on a leading end side beyond the catheter hub, wherein the needle support portion has a pair of support arms openable and closeable in a left and right direction, and a restraining portion capable of restraining the pair of support arms in a closed state and releasing a restraint of the pair of support arms, the needle hub having an extension portion extending in a leading end direction beyond the catheter hub, the pair of support arms being laterally disposed between the restraining portion.
Claims20
A catheter assembly comprising:
- a catheter;
- a catheter hub fixed to a base end portion of the catheter;
- an inner needle having a needlepoint, inserted into the catheter;
- a needle hub coupled to the inner needle;
- and
- a needle support portion configured to support the inner needle through the catheter on a leading end side of the catheter and distally of the catheter hub, wherein the needle support portion has a pair of support arms openable and closeable in a lateral direction, and a restraining portion capable of restraining the pair of support arms in a closed state during puncturing of a blood vessel of a patient with the catheter and the inner needle and releasing a restraint of the pair of support arms after the puncturing of the blood vessel of the patient with the catheter and the inner needle, the needle hub having an extension portion extending axially and distally of the catheter hub, the pair of support arms being laterally disposed between the restraining portion, and wherein the restraining portion is movable with respect to the pair of support arms by a distal movement of the catheter hub relative to the needle hub, which releases the restraint with respect to the pair of support arms.
A catheter assembly comprising:
- a catheter;
- a catheter hub fixed to a base end portion of the catheter;
- an inner needle having a needlepoint, inserted into the catheter;
- a needle hub coupled to the inner needle;
- a needle support portion configured to support the inner needle through the catheter on a leading end side of the catheter and distally of the catheter hub, wherein the needle support portion has a pair of support arms openable and closeable in a lateral direction, and a restraining portion capable of restraining the pair of support arms in a closed state during puncturing of a blood vessel of a patient with the catheter and the inner needle and releasing a restraint of the pair of support arms after the puncturing of the blood vessel of the patient with the catheter and the inner needle, the needle hub having an extension portion extending axially and distally of the catheter hub, a hub operating portion coupled to the catheter hub, and the pair of support arms being laterally disposed between the restraining portion;
- and
- wherein the restraining portion is movable with respect to the pair of support arms by a distal movement of the catheter hub relative to the needle hub, and a distal movement of the hub operating portion relative to the needle hub releases the restraint with respect to the pair of support arms.
A catheter assembly comprising:
- a catheter;
- a catheter hub configured to be fixed to a base end portion of the catheter;
- an inner needle having a needlepoint configured to be insertable into the catheter;
- a needle hub configured to be coupled to the inner needle;
- and a
- needle support portion configured to support the inner needle through the catheter on a leading end side of the catheter and distally of the catheter hub, wherein the needle support portion has a pair of openable and closeable support arms, a restraining portion capable of restraining the pair of openable and closeable support arms in a closed state during puncturing of a blood vessel of a patient with the catheter and the inner needle, the needle hub having an extension portion extending axially and distally of the catheter hub, and the pair of openable and closeable support arms being laterally disposed between the restraining portion, and wherein the restraining portion is movable with respect to the pair of support arms by a distal movement of the catheter hub relative to the needle hub, which releases the restraint with respect to the pair of support arms.
Dependencies are inferred from the claim text.