In-vivo monitoring type central venous indwelling catheter with pressure monitoring function

Abstract

The invention discloses an in-vivo monitoring type central venous catheter with a pressure monitoring function, which comprises a catheter body, one side of the catheter body is connected with a puncture head, the catheter body is movably sleeved with a sleeve, and an elastic connecting piece is connected between the sleeve and the puncture head. An extrusion mechanism is connected between the catheter body and the sleeve, and the extrusion mechanism is arranged on the side, away from the puncture head, of the catheter body. The sleeve is extruded to move through the extrusion mechanism, the elastic connecting piece is extruded when the sleeve moves, the inner side of the elastic connecting piece is attached to the indwelling catheter body, when the elastic connecting piece is extruded, the elastic connecting piece hunches outwards, and a puncture head on the indwelling catheter body can be relatively fixed to a blood vessel through the hunched elastic connecting piece; the swing of the puncture head is effectively reduced, so that the injury of the puncture head to the blood vessel of a patient is reduced, the pain of the puncture head to the patient is effectively reduced, and meanwhile, the puncture head is effectively prevented from puncturing the blood vessel of the patient.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to an in-vivo monitoring central venous catheter with its own pressure monitoring function. Background technique [0002] Intravenous catheter is a medical catheter with one end inserted into the patient's vein and the other end outside the patient's body for injecting drugs or drawing blood. The appearance of venous catheters realizes the convenience of infusion and reduces the pain of needle sticks for patients, so it is widely used. [0003] The prior art has the following deficiencies: when the venous catheter of the prior art is inserted into the patient's vein, the fixation effect is relatively poor, and when the patient's range of motion is large, the tip of the venous catheter insertion end may sting the blood vessel, causing pain to the patient. In severe cases, the vein may be punctured, resulting in the formation of local edema in the interstitial space outside...

AI Technical Summary

Problems solved by technology

[0003] The prior art has the following deficiencies: when the prior art venous catheter is inserted into the vein of the patient, the fixation effect is relatively poor, and when the patient moves a lot, the tip of the venous catheter insertion end may sting the blood vessel, causing pain to the patient In severe cases, the vein may be punctured, resulting in local edema in the tissue space outside the blood vessel during infusion

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