Blunt needle puncture measuring instrument

Abstract

The invention discloses a blunt needle puncture measuring instrument. The blunt needle puncture measuring instrument comprises a base, a supporting floor stand, a supporting cross arm and a fixing disk for bearing a blunt needle, wherein the base is provided with a horizontal table board, and a bearer allowing an arm of a patient to be placed thereon is positioned and arranged on the horizontal table board; the supporting floor stand is vertically arranged in the position, close to the bearer, on the horizontal table board, and can perform reciprocating movement positioning on the horizontal table board in an X-axis direction; the supporting cross arm is transversely arranged above the bearer and can be connected to the supporting floor stand, the vertical position of the supporting cross arm can be adjusted relative to the supporting floor stand, and the supporting cross arm can rotate relative to the supporting floor stand; and the fixing disk is connected to the supporting cross arm, can perform reciprocating movement positioning on the supporting cross arm in a Y-axis direction, and can rotate relative to the supporting cross arm. The blunt needle puncture measuring instrument is not only simple,. reasonable and compact in structure, but also easy to operate, and the puncture accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, and specifically provides a blunt needle puncture measuring instrument. Background technique [0002] At present, the puncture methods of arteriovenous fistula clinically include the regional method, the rope ladder method and the buttonhole method. The American Kidney Foundation vascular access clinical guidelines recommend buttonhole puncture as the first choice for arteriovenous fistula puncture. The buttonhole puncture method requires continuous consistent puncture, that is, three operations: each puncture is the same needle insertion point, the same needle insertion angle, and the same needle insertion depth, which is the key to forming a buttonhole puncture tunnel. The classic method of buttonhole puncture is to immobilize an experienced nurse and perform the puncture until the buttonhole is mature and the subcutaneous tunnel is formed. The other puncturers must also completel...

AI Technical Summary

Problems solved by technology

However, the buttonhole puncture method requires high puncture technology, and requires that the needle position, needle angle, needle depth and needle direction be exactly the same each time. Needle insertion angle, needle depth, and needle insertion direction are accurately measured. Therefore, when nurses puncture arteriovenous fistulas for hemodialysis patients, they often use blind puncture or empirical puncture, so the puncture path is prone to deviation, which increases Affects the patient's pain and affects the success rate of puncture

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