Indwelling needle

A technology of indwelling needles and needle holders, applied in the field of indwelling needles, can solve the problems of easily stabbing medical staff, and achieve the effects of avoiding medical infection, reducing workload, and simplifying the operation process
CN108568010AInactive Publication Date: 2018-09-25ε†―θŽžε©·
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
ε†―θŽžε©·
Publication Date
2018-09-25
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides an indwelling needle. The indwelling needle comprises an indwelling needle seat, an isolation plug, a catheter, a puncturing steel needle, a stop block, a plurality of limitingblocks and a baffle, wherein the indwelling needle seat comprises an inner cavity; the isolation plug is arranged in the inner cavity; the catheter is arranged at one end of the indwelling needle seat; one end of the puncturing steel needle punctures the isolation plug and extends out of the catheter; the stop block is clamped in the indwelling needle seat and abuts against the isolation plug; theplurality of limiting blocks are circumferentially arranged in one end, away from the catheter, of the indwelling needle seat; the baffle is arranged in the inner cavity and connected with the stop block through a spring, the spring sleeves the puncturing steel needle, and a plurality of openings matched with the plurality of limiting blocks in shape and size are formed in the edge of the baffle;the baffle is rotated, and when the plurality of openings in the baffle correspond to the plurality of limiting blocks, the plurality of openings in the baffle penetrate through the plurality of limiting blocks; the baffle is rotated, and when the plurality of openings in the baffle and the plurality of limiting blocks are staggered, the baffle is limited. The puncturing steel needle cannot puncture a medical worker due to protection of the spring, and medical infection is avoided.
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Description

technical field

[0001] The invention relates to the technical field of medical devices, and more specifically, to an indwelling needle. Background technique

[0002] Venous indwelling needle is a common medical device in nursing work. It is easy to use and reduces the number of punctures for patients, thereby reducing repeated punctures during clinical infusion, reducing the pain of puncture for patients and the workload of clinical nurses. It has been widely used in clinical practice today.

[0003] When the indwelling needle is in use, the catheter and the puncture steel needle are inserted into the patient's blood vessel together. After stabilization, the infusion needle is pulled out, and only the catheter is left in the patient's blood vessel for infusion. During the above operation process, when the puncture steel needle is extracted, the extracted needle may scratch the medical staff, thereby causing infection to the medical staff, endangering the health of the medic...

Claims

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