Search

CN-224207180-U - Safety injection needle

CN224207180UCN 224207180 UCN224207180 UCN 224207180UCN-224207180-U

Abstract

The utility model discloses a safety injection needle which comprises a needle seat, a needle head and a side protective sleeve, wherein one end of the needle head is inserted and fixed on the needle seat, one end of the side protective sleeve is rotatably connected to one side of the needle seat, one side of the side protective sleeve is provided with a protective cavity, a limiting piece is arranged in the protective cavity and comprises a plurality of limiting strips, and the limiting strips are positioned at the outlet of the protective cavity and limit the needle head in the protective cavity. The utility model has the effect of improving the stability of the needle in the side protective sleeve.

Inventors

  • SHI LEI
  • CHEN ZHICHENG

Assignees

  • 宁波美生医疗器材有限公司

Dates

Publication Date
20260508
Application Date
20250527

Claims (7)

  1. 1. The safe injection needle comprises a needle seat (2), a needle head (3) and a side protective sleeve (4), wherein one end of the needle head (3) is inserted and fixed on the needle head seat (2), one end of the side protective sleeve (4) is rotationally connected to one side of the needle head seat (2), one side of the side protective sleeve (4) is provided with a protective cavity (5), and the safe injection needle is characterized in that a limiting piece (12) is arranged in the protective cavity (5), the limiting piece (12) comprises a plurality of limiting strips (13), and the limiting strips (13) are positioned at the outlet of the protective cavity (5) and limit the needle head (3) in the protective cavity (5).
  2. 2. A safety needle according to claim 1, characterized in that a plurality of said stop strips (13) are staggered and arranged on each side of said protective cavity (5).
  3. 3. A safety needle according to claim 1, characterized in that the stop strips (13) are arranged obliquely inwards.
  4. 4. A safety needle according to claim 1, characterized in that one end of the side shield (4) is provided with a locking clasp (15), the locking clasp (15) being fastened to the end of the needle holder (2).
  5. 5. A safety needle according to claim 1, wherein the side protective sleeves (4) are provided with stabilizing pieces (14) on both sides near one end of the needle holder (2), respectively, and the needle holder (2) is located between the two stabilizing pieces (14) and is attached to each other.
  6. 6. The safety injection needle according to claim 4, wherein one end of the side protection sleeve (4) is provided with a rotating rod (6), the side wall of the needle seat (2) is provided with a rotating seat (7), the rotating rod (6) is rotationally connected in the rotating seat (7), the side wall of the rotating seat (7) is provided with a limiting block (10), and the inner side wall of the side protection sleeve (4) is provided with a clamping groove (11) for clamping and fixing the limiting block (10).
  7. 7. A safety needle according to claim 6, characterized in that the side wall of the rotating seat (7) is provided with a connecting groove (9), and the rotating rod (6) can slide into the rotating seat (7) along the connecting groove (9).

Description

Safety injection needle Technical Field The application relates to the technical field of medical instruments, in particular to a safe injection needle. Background The injection needle is a disposable product under the normal condition, the injection needle can be discarded after being used, in order to prevent the exposed needle from stabbing a recovery person, a side protection sleeve is connected to the needle seat, for example, chinese patent discloses a safe injection needle (application number 201720519795.6), when the injection needle is used, a needle cap can be pulled down, a human body is injected or liquid medicine is extracted by using the needle point, after the needle is used, the side protection sleeve is rotated, the needle point is covered by the side protection sleeve from the side surface, the stabbing of the recovery person caused by the exposure of the needle is effectively avoided, and because the side protection sleeve is connected with the needle seat through a hinge, when the needle of the injection needle is wrapped by the side protection sleeve, the side protection sleeve on the injection needle can rotate due to special conditions, so that the needle is separated from the side protection sleeve, and the needle exposed to the outside can stabbing the recovery person. Disclosure of utility model The utility model aims to overcome the defects and shortcomings of the prior art and provides a safe injection needle. In order to achieve the above purpose, the present utility model adopts the following technical scheme: Including needle mount, syringe needle and side lag, the one end grafting of syringe needle is fixed in on the needle mount, the one end of side lag rotate connect in one side of needle mount, one side of side lag has the protection cavity, be provided with the locating part in the protection cavity, the locating part includes a plurality of spacing, a plurality of spacing is located the exit of protection cavity and will the syringe needle is restricted in the protection cavity. Preferably, the plurality of limit bars are staggered and arranged on two sides of the protection cavity respectively. Preferably, the limit strips are arranged obliquely inwards. Preferably, one end of the side protective sleeve is provided with a locking buckle, and the locking buckle is fastened and fixed at the end part of the needle seat. Preferably, the side protection sleeves are respectively provided with a stabilizing piece at two sides close to one end of the needle seat, and the needle seat is arranged between the two stabilizing pieces and is mutually attached. Preferably, one end of the side protection sleeve is provided with a rotating rod, the side wall of the needle seat is provided with a rotating seat, the rotating rod is rotationally connected in the rotating seat, the side wall of the rotating seat is provided with a limiting block, and the inner side wall of the side protection sleeve is provided with a clamping groove for clamping and fixing the limiting block. Preferably, the side wall of the rotating seat is provided with a connecting groove, and the rotating rod can slide into the rotating seat along the connecting groove. In summary, the present application includes at least one of the following beneficial technical effects: 1. After the injection needle is used, one end of the side protective sleeve and the side wall of the needle seat can be rotated, so that the needle head slides into the protective cavity from one side of the side protective sleeve, and in the process, the needle head can pass through the limit strip, the limiting strips are obliquely arranged inwards, so that the needle head can conveniently slide into the protective cavity, and then the needle head is prevented from being separated from the protective cavity under the blocking of the limiting strips, so that the stability of the needle head in the side protective sleeve is improved; 2. When the injection needle is in a working state, the side protective sleeve is positioned at one side of the injection needle and forms an included angle, and at the moment, the limiting block is clamped and fixed in the clamping groove, so that the injection needle can be used, and the side protective sleeve cannot influence the injection needle. Drawings FIG. 1 is a schematic cross-sectional view of the needle of the present utility model in an operative condition; FIG. 2 is an enlarged view at A in FIG. 1; FIG. 3 is a schematic cross-sectional view of the present utility model in a discarded state of the needle; FIG. 4 is a schematic view of the structure of the needle mount and the side shield of the present utility model; fig. 5 is a schematic view of the needle mount and side shield of the present utility model from another perspective. The needle comprises a needle cylinder 1, a needle seat 2, a needle head 3, a needle head 4, a side protective sleeve 5, a protective cavity 6, a rotating rod 7, a rotating seat