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CN-224220521-U - Electronic injector needle head convenient to connect

CN224220521UCN 224220521 UCN224220521 UCN 224220521UCN-224220521-U

Abstract

The utility model relates to the technical field of electronic syringe needles, in particular to an electronic syringe needle convenient to connect, which comprises a needle cylinder and a driving mechanism, wherein a piston is arranged in the needle cylinder, the right end of the piston is fixedly connected with a push rod, the left end of the needle cylinder is communicated with a connector, the outer wall of the connector is sheathed with a needle seat, the left end of the needle seat is communicated with a needle head, the inner wall of the needle seat is fixedly connected with an annular ring, a torsion block is rotated, so that a spherical limiting block enters the inside of a groove and extrudes a compression plate upwards, the needle seat and the needle head can be prevented from moving leftwards, and due to the arrangement of an annular sealing gasket, the purposes of preventing leakage of liquid medicine and separation of the needle seat are achieved, the spherical limiting block is rapidly separated from the inside of the groove by reversely rotating the torsion block, and the connector is in clearance fit with the inner wall of the needle seat, so that the needle seat and the needle head can be easily taken down, and the aim of avoiding injury to operators and other staff when the needle seat and the needle seat are pulled out is further achieved.

Inventors

  • ZHAO WEI
  • ZHAO LIANG
  • JIANG XIAOZHEN

Assignees

  • 江苏恒舟医疗设备有限公司

Dates

Publication Date
20260512
Application Date
20241224

Claims (6)

  1. 1. The electronic injector needle convenient to connect comprises a needle cylinder (1) and a driving mechanism, wherein a piston (2) is arranged in the needle cylinder (1), and the right end of the piston (2) is fixedly connected with a push rod (3), and the electronic injector needle is characterized in that the left end of the needle cylinder (1) is communicated with a connector (4), the outer wall of the connector (4) is sleeved with a needle seat (5), the left end of the needle seat (5) is communicated with a needle head (6), the inner wall of the needle seat (5) is fixedly connected with an annular ring (7), and the right end of the annular ring (7) is fixedly connected with an annular sealing gasket (8) which is abutted against the left end of the connector (4); The needle holder is characterized in that the upper end of the outer wall of the needle holder (5) is fixedly connected with a connecting seat (15), the upper end of the connecting seat (15) is fixedly connected with a screw rod (16), the outer wall of the screw rod (16) is in threaded connection with a torsion block (17), the upper end of the torsion block (17) is fixedly connected with a spherical limiting block (18), the outer wall of the needle cylinder (1) is fixedly connected with a connecting plate (12), the left end of the connecting plate (12) is fixedly connected with a pressure receiving plate (13), the lower end of the pressure receiving plate (13) is provided with a groove (14), and the spherical limiting block (18) extends into the groove (14) and is matched with the groove. The needle cylinder is characterized in that the left end of the needle cylinder (1) is fixedly connected with a positioning cylinder (10) with an opening structure at the left end and the right end, the lower end of the outer wall of the needle seat (5) is fixedly connected with a fixing plate (9), and the right end of the fixing plate (9) is fixedly connected with a positioning rod (11) which extends into the positioning cylinder (10) and is matched with the positioning cylinder.
  2. 2. The electronic syringe needle convenient to connect according to claim 1, wherein the driving mechanism comprises a connecting frame (19) fixedly connected to the lower end of the outer wall of the syringe (1), a screw rod (20) is rotatably connected in the connecting frame (19), a motor (21) with an output end fixedly connected with the screw rod (20) is mounted at the right end of the connecting frame (19), a moving block (22) is connected with the outer wall of the screw rod (20) through threads, and a push-pull plate (23) fixedly connected with the right end of the push rod (3) is fixedly connected with the upper end of the moving block (22).
  3. 3. An electronic injector needle for facilitating connection according to claim 2, characterized in that the moving block (22) is connected with the bottom end of the inner wall of the connecting frame (19) in a sliding way through a sliding groove and a sliding block.
  4. 4. An electronic injector needle for facilitating connection according to claim 1, characterized in that the lower end of the spherical limiting block (18) is provided with a through hole (24).
  5. 5. An electronic injector needle for facilitating connection according to claim 1, characterized in that the outer wall of the torsion block (17) is provided with anti-slip threads.
  6. 6. The conveniently connected needle head of the electronic injector according to claim 1, wherein the right end of the positioning rod (11) is of a spherical structure.

Description

Electronic injector needle head convenient to connect Technical Field The utility model relates to the technical field of electronic syringe needles, in particular to an electronic syringe needle convenient to connect. Background The injector consists of a needle cylinder with a small hole at the front end and a piston core rod matched with the needle cylinder. When the core rod is pulled out, liquid or gas is sucked in from the small hole at the front end of the needle cylinder, and when the core rod is pushed in, the liquid or gas is extruded out. The working principle of the electronic injector is generally based on the driving of the motor and the accurate measurement of the gauge to realize accurate injection. An electric motor, such as a dc motor or a stepper motor, is a core component of the electronic injector and is responsible for generating the driving force. This driving force is converted into a linear motion of the piston through a series of mechanical transmission means (e.g., screw, nut, etc.), thereby pushing the medical fluid for injection. In prior art, when connecting the syringe needle, generally can be with needle file direct insertion at the connector outer wall, through the zonulae occludens of needle file and connector, thereby realize fastening and sealing, thereby accomplish the connection to the syringe needle, but at the in-process of operation, unable accurate control needle file and connector are connected, when needle file and connector are connected too loose, lead to the liquid medicine to reveal easily and the needle file breaks away from, when connecting too closely, need hard just can extract the needle file, and then at the moment of extracting, the syringe needle can cause the injury to operator and other personnel, therefore it is necessary to propose an electronic syringe needle convenient to connect to solve above-mentioned problem. Disclosure of utility model The utility model aims to provide an electronic syringe needle convenient to connect, which has the characteristics of preventing leakage of liquid medicine and separation of a needle seat and avoiding injury to operators and other personnel when the needle and the needle seat are pulled out. The electronic injector needle head convenient to connect comprises a needle cylinder and a driving mechanism, wherein a piston is arranged in the needle cylinder, the right end of the piston is fixedly connected with a push rod, the left end of the needle cylinder is communicated with a connector, the outer wall of the connector is sheathed with a needle seat, the left end of the needle seat is communicated with the needle head, the inner wall of the needle seat is fixedly connected with an annular ring, and the right end of the annular ring is fixedly connected with an annular sealing gasket which is abutted against the left end of the connector; The upper end of the outer wall of the needle seat is fixedly connected with a connecting seat, the upper end of the connecting seat is fixedly connected with a screw rod, the outer wall of the screw rod is in threaded connection with a torsion block, the upper end of the torsion block is fixedly connected with a spherical limiting block, the outer wall of the needle cylinder is fixedly connected with a connecting plate, the left end of the connecting plate is fixedly connected with a pressure receiving plate, the lower end of the pressure receiving plate is provided with a groove, and the spherical limiting block extends into the groove and is matched with the groove; The needle cylinder is characterized in that the left end of the needle cylinder is fixedly connected with a positioning cylinder with an opening structure at the left end and the right end, the lower end of the outer wall of the needle seat is fixedly connected with a fixing plate, and the right end of the fixing plate is fixedly connected with a positioning rod which extends into the positioning cylinder and is matched with the positioning cylinder. In order to finish the accurate injection of the liquid medicine, as the needle head of the electronic injector convenient to connect, the utility model is preferable, the driving mechanism comprises a connecting frame fixedly connected with the lower end of the outer wall of the needle cylinder, a screw rod is rotationally connected in the connecting frame, a motor with an output end fixedly connected with the screw rod is arranged at the right end of the connecting frame, a moving block is in threaded connection with the outer wall of the screw rod, and a push-pull plate fixedly connected with the right end of the push rod is fixedly connected with the upper end of the moving block. In order to facilitate the improvement of the moving stability of the moving block, the needle of the electronic injector which is convenient to connect is preferably used as the utility model, and the moving block is connected with the bottom end of the inner wall of the connecting fr