A contrast agent injector for interventional department

Abstract

The invention discloses an intervention department contrast media pushing-injecting device, and belongs to the field of medical treatment operation tools. The intervention department contrast media pushing-injecting device comprises an inserting needle, a needle cylinder, a segregation movement block, a push-pull rod and a hand-push part, wherein an adjusting auxiliary pipe is arranged in the center of the needle cylinder, a spiral strip is twined and fixedly arranged on the adjusting auxiliary pipe in the length direction of the adjusting auxiliary pipe to form a rotary body, a through hole of which the cross section is matched with that of the rotary body is formed in the middle of the segregation movement block, a groove hole communicated with the through hole is formed in the middle of the push-pull rod, the groove hole is internally provided with an auxiliary push rod which extends to the inside of the adjusting auxiliary pipe, and a spring fixed to the rear end of the groove hole is connected to the rear end of the auxiliary push rod; the pushing-injecting device further comprises a handheld pushing part, the handheld pushing part comprises a front handle and a rear handle which are both installed on a connecting shaft, the front handle and the rear handle are installed in the middle of the outer side of the needle cylinder and the lower portion of the hand-push part respectively, and a torsion spring is installed at a connecting end of the front handle and the rear handle. The problem that it is strenuous for the pushing-injecting device to inject a contrast medium is solved, and the stability of the pushing-injecting device can be maintained; the preparation time of intervention medical treatment is saved, so that the contrast medium is injected into the human body at a constant speed.

Description

technical field [0001] The invention relates to the field of medical operation appliances, in particular to a contrast agent injector for interventional departments. Background technique [0002] The structure of a general injector includes a needle, a syringe, an isolating movement block, a push-pull rod and a hand-push part. It is a whole, and the isolation movement block is always located in the syringe, and the space between the push-pull rod and the syringe communicates with the outside world through the opening at the rear end of the syringe. Its working process is: when extracting the medicine, pull the push-pull rod backward, so that a relative vacuum space is formed between the isolation movement block and the front end of the syringe, and the medicine enters the syringe under the action of the external atmospheric pressure; when injecting the medicine, push the hand forward The atmospheric pressure also acts on the side of the isolation movement block connected to...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a contrast agent injector for interventional departments, which solves the difficult problem that the injector is laborious when injecting contrast agents, and at the same time, can maintain the stability of the injector and avoid deviation; It can promote the extraction and injection process of the contrast agent, saving the preparation time for interventional medical observation; it is conducive to promoting the stability of the pressure at the junction of the needle and the syringe, so that the contrast agent can be injected into the human body at a uniform speed

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