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CN-115887220-B - Duplex injector with guide structure

CN115887220BCN 115887220 BCN115887220 BCN 115887220BCN-115887220-B

Abstract

The application provides a duplex injector with a guide structure, which comprises an injector module, wherein the injector module comprises an injector fixing frame and two injectors, the injector fixing frame comprises two arm parts, front ends of the two arm parts are spaced apart in the thickness direction, guide parts are arranged on inner side surfaces of the two arm parts, the guide parts comprise two first guide surfaces, buckles are arranged at rear ends of the two first guide surfaces, buckling positions are formed at rear ends of the buckles, and a hybrid head comprises a hybrid head connecting part, the hybrid head connecting part comprises two side surfaces which extend backwards in the length direction from a main body part of the hybrid head, and buckling convex parts are arranged at rear ends of the two side surfaces. The two first guide surfaces can be matched with two syringes, so that the serial-parallel connection head connecting part is aligned fast and then is inserted into the syringe fixing frame smoothly, the buckle convex part is guided to find the buckle fast and accurately and insert the buckle position to complete the clamping connection, and the syringe module and the serial-parallel connection head are installed fast.

Inventors

  • LIN CHUFAN
  • MA CHENG
  • DENG KUNXUE
  • YUAN YUYU

Assignees

  • 广州迈普再生医学科技股份有限公司

Dates

Publication Date
20260508
Application Date
20221216

Claims (9)

  1. 1. A duplex syringe having a guide structure, comprising: The syringe module comprises a syringe fixing frame (1) and two syringes (2), wherein the two syringes (2) are detachably connected to the syringe fixing frame (1); the syringe fixing frame (1) comprises two opposite arm parts (11) extending along the length direction (X), the front ends of the two arm parts (11) are spaced along the thickness direction (Z), the inner side surfaces (111) of the two arm parts (11) are provided with guide parts (13), The guide portion (13) is provided between the two syringes (2), the guide portion (13) includes two first guide surfaces (131) opposed to each other at positions formed by extending rearward in the longitudinal direction (X) from the front ends of the inner side surfaces (111) of the two arm portions (11), the two first guide surfaces (131) are inclined with respect to a plane parallel to both the longitudinal direction (X) and the width direction (Y), the two first guide surfaces (131) are spaced apart in the thickness direction (Z), a catch (14) is provided at the rear ends of the two first guide surfaces (131), a catch position (141) is formed at the rear ends of the catch (14), the guide portion (13) further includes a second guide surface (112) formed on the first guide surfaces (131), the second guide surface (112) extends in the longitudinal direction (X) and is inclined with respect to a plane parallel to both the longitudinal direction (X) and the thickness direction (Z), and The hybrid joint (3), the rear end of hybrid joint (3) is provided with two syringe connecting holes (33), hybrid joint (3) are including hybrid joint connecting portion (34), hybrid joint connecting portion (34) are including following two sides that length direction (X) extended backward of the main part of hybrid joint (3), two sides are in opposite orientation on thickness direction (Z) the rear end of two sides is provided with buckle convex part (341), buckle convex part (341) will the rear end of two sides is connected.
  2. 2. The duplex injector with guide structure according to claim 1, wherein the guide portion (13) and the series-parallel connection portion (34) are both located at an intermediate position in the width direction (Y) and/or the guide portion (13) and the series-parallel connection portion (34) are both located at an intermediate position in the thickness direction (Z).
  3. 3. The duplex injector with guide structure according to claim 1, wherein the snap (14) is deformable, the dimension of the snap protrusion (341) in the thickness direction (Z) being larger than the gap in the thickness direction (Z) when the snap (14) is not deformed.
  4. 4. The duplex injector with guide structure according to claim 1, wherein the outer side of the arm (11) has a dimension in the width direction (Y) that is larger than the dimension of the first guide surface (131), the outer side of the arm (11) having a dimension that is larger than the distance between the reservoirs (21) of the two injectors (2).
  5. 5. The duplex syringe with guide structure according to claim 1, wherein the front end of the outer peripheral surface of the liquid storage portion (21) of the syringe (2) is formed with a rounded corner.
  6. 6. The duplex injector with guide structure according to claim 1, wherein when the two injectors (2) are mounted on the injector mount (1), the front ends of the arm portions (11) protrude from the front ends of the liquid storage portions (21) of the injectors (2) or are flush with the front ends of the liquid storage portions (21) of the injectors (2), and the front ends of the liquid storage portions (21) of the injectors (2) protrude from the snap hooks (14).
  7. 7. The duplex injector with guide structure according to claim 1, wherein the serial head connection (34) comprises four sides extending backward in the length direction (X) from the main body portion of the serial head (3), the four sides intersecting at the rear end, and snap protrusions (341) are provided on the rear ends of the two opposite sides in the thickness direction (Z).
  8. 8. The duplex syringe with guide structure according to claim 1, wherein the distance between the reservoirs (21) of the two syringes (2) is 5 to 25 mm, the distance between the catch (14) and the outlet portion (22) of the syringe (2) is 5 to 80 mm.
  9. 9. The duplex injector with guide structure according to claim 1, further comprising an anti-drop member (4), the anti-drop member (4) being connected to the injector (2), the anti-drop member (4) being capable of blocking a push rod (23) of the injector (2) from exiting a reservoir (21) of the injector (2).

Description

Duplex injector with guide structure Technical Field The application belongs to the field of medical instruments, and particularly relates to a duplex injector with a guide structure. Background Prior duplex syringes generally require that each component solution stored in the reagent bottle be drawn into the syringe before use, and therefore the serial connection head and the syringe module are generally required to be assembled for use, and convenience of assembling operation and prevention of installation errors of the duplex syringe are important in the practical operation use process. The existing duplex injector is usually connected with a reagent bottle by adopting a movable luer thread head in a threaded manner, but the movable luer head is smaller, the operation space for screwing after butt joint is small, the operation is inconvenient, the injector can be prevented from being rotated in the use process, the injector and the hybrid head are not tightly connected to cause the problem of liquid leakage, and even are separated when serious, in addition, the two holes in the two injector luer heads and the two holes in the hybrid head are required to be aligned simultaneously in the assembly process of the duplex injector, and the time consumption is long and the operation is inconvenient. The applicant designs a duplex mixing syringe which has simple structure, convenient operation and quick assembly and can effectively prevent the syringe from rotating in the using process aiming at the problems in WO2019052510A 1. Through setting up two vertical portion lugs in the inside of last module mount, set up the bellied buckle portion of containing the buckle on lower module connecting piece, through the protruding cooperation of the buckle of longitudinal portion lug and connecting piece of mount, connect connecting piece and mount as a whole, solved the loaded down with trivial details, the problem that duplex mixing syringe atress is scattered easily of equipment. However, the applicant finds that, in the subsequent use process, the position of the protrusion of the longitudinal portion cannot be quickly and accurately found when the fastening portion of the connecting piece is inserted into the fixing frame, so as to realize quick fastening of the fastening protrusion and the protrusion. There is therefore a need for further improvements in such dual mixing syringes. Disclosure of Invention The application aims to provide a double-connection injector with a guide structure, which can enable a serial-connection head connecting part to be aligned fast and then to be inserted into an injector fixing frame smoothly, guide a buckle convex part to find a buckle fast and accurately and insert a buckle position to finish the clamping connection of the two, and realize the fast installation of an injector module and the serial-connection head. Embodiments of the present application provide a duplex syringe having a guide structure, comprising: A syringe module, the syringe module comprises a syringe fixing frame and two syringes, the two syringes are detachably connected to the syringe fixing frame; The syringe fixing frame comprises two arm parts which extend along the length direction and are opposite to each other, the front ends of the two arm parts are spaced apart along the thickness direction, the inner side surfaces of the two arm parts are provided with guide parts, The guide portion is disposed between the two syringes, and comprises two first guide surfaces formed by extending backward in the longitudinal direction from the front ends of the inner side surfaces of the two arm portions, the two first guide surfaces being inclined with respect to a plane parallel to both the longitudinal direction and the width direction, the two first guide surfaces being spaced apart in the thickness direction, a buckle being disposed at the rear ends of the two first guide surfaces, a buckle position being formed at the rear ends of the buckle, and The hybrid joint comprises a hybrid joint connecting part, wherein the hybrid joint connecting part comprises two side faces which extend backwards along the length direction from the main body part of the hybrid joint, the two side faces face opposite in the thickness direction, the rear ends of the two side faces are provided with buckling convex parts, and the buckling convex parts connect the rear ends of the two side faces. In at least one possible embodiment, the guide and the series-parallel connection head are each located at an intermediate position in the width direction and/or the guide and the series-parallel connection head are each located at an intermediate position in the thickness direction. In at least one possible embodiment, the clip can be deformed, and the dimension of the clip projection in the thickness direction is greater than the gap in the thickness direction when the clip is not deformed. In at least one possible embodiment, the outer side of