阅读说明：本技术 一种双向自动定位对接输液装置 (Bidirectional automatic positioning butt-joint infusion device ) 是由 吴晓璇 袁辉露 谭广斌 邓宇 梁广洋 于 2020-06-08 设计创作，主要内容包括：本发明公开了一种双向自动定位对接输液装置,包括带有定位槽的基座,带有输液通道的第一滑头和第二滑头,与输液通道连通的针头,分别铰接于第一滑头和第二滑头上的第一连杆和第二连杆,与第一连杆和第二连杆铰接的主动杆,以及电机；定位槽内安装有微流控芯片；在电机工作时,电机驱动主动杆带动第一连杆和第二连杆转动,第一连杆和第二连杆驱动第一滑头和第二滑头相向或背向滑动而使第一滑头和第二滑头同时与微流控芯片对接或分离；在第一滑头和第二滑头与微流控芯片对接时,液体通过第一滑头的输液通道和针头进入微流控芯片,且通过微流控芯片第二滑头的针头进入输液通道而流出。本发明具有自动对接、对接准确、操作简单和方便的有益效果。(The invention discloses a bidirectional automatic positioning butt joint infusion device, which comprises a base with a positioning groove, a first sliding head and a second sliding head with infusion channels, a needle head communicated with the infusion channels, a first connecting rod and a second connecting rod respectively hinged on the first sliding head and the second sliding head, a driving rod hinged with the first connecting rod and the second connecting rod, and a motor, wherein the first sliding head and the second sliding head are provided with infusion channels; a micro-fluidic chip is arranged in the positioning groove; when the motor works, the motor drives the driving rod to drive the first connecting rod and the second connecting rod to rotate, and the first connecting rod and the second connecting rod drive the first sliding head and the second sliding head to slide in the opposite direction or in the back direction so that the first sliding head and the second sliding head are simultaneously butted with or separated from the microfluidic chip; when the first sliding head and the second sliding head are in butt joint with the microfluidic chip, liquid enters the microfluidic chip through the liquid conveying channel and the needle head of the first sliding head and enters the liquid conveying channel through the needle head of the second sliding head of the microfluidic chip to flow out. The invention has the advantages of automatic butt joint, accurate butt joint, simple and convenient operation.)

1. A bidirectional automatic positioning butt-joint infusion device is characterized by comprising a base with a positioning groove, a first sliding head and a second sliding head with infusion channels, needles which are arranged on the first sliding head and the second sliding head and are communicated with the infusion channels, a first connecting rod and a second connecting rod which are respectively hinged on the first sliding head and the second sliding head, a driving rod with two ends respectively hinged with the first connecting rod and the second connecting rod, and a motor for driving the driving rod to rotate; a micro-fluidic chip is arranged in the positioning groove, and a sealing ring is arranged at the front end of the needle head; when the motor works, the motor drives the driving rod to drive the first connecting rod and the second connecting rod to rotate, and the first connecting rod and the second connecting rod drive the first sliding head and the second sliding head to slide in the opposite direction or in the back direction so that the first sliding head and the second sliding head are simultaneously butted with or separated from the microfluidic chip; when the first sliding head and the second sliding head are simultaneously butted with the microfluidic chip, liquid enters the microfluidic chip through the liquid conveying channel and the needle head of the first sliding head and enters the liquid conveying channel through the needle head of the second sliding head of the microfluidic chip to flow out.

2. The infusion set with bidirectional automatic positioning and butt joint as claimed in claim 1, wherein the centers of the first sliding head and the second sliding head are provided with positioning heads for aligning with the microfluidic chip, and the front ends of the positioning heads are in a conical shape.

3. The bi-directional automatic positioning and docking infusion device of claim 1, wherein the infusion channels of the first and second sliders respectively externally connect the liquid supply element and the driving element through pipes.

4. The infusion set with bidirectional automatic positioning and butting according to claim 1, wherein the sealing ring is a Y-shaped sealing ring, and a check ring for preventing overturning is arranged at the rear end of the Y-shaped sealing ring.

5. The bi-directional automatic positioning and docking infusion device of claim 4, wherein the inner diameter of the retainer ring is larger than the diameter of the needle, and the upper end of the retainer ring is lower than the upper end of the sealing ring.

6. The infusion device as claimed in any one of claims 1 to 3, wherein the first slider and the second slider are provided with stoppers for limiting the first slider and the second slider to slide in a vertical direction.

Technical Field

The invention relates to an infusion device, in particular to a bidirectional automatic positioning butt joint infusion device.

Background

In a hydraulic or pneumatic system, the joints of some conduits and joints need to be frequently assembled and disassembled; in addition, after the hydraulic and pneumatic systems and accessories are assembled, a large number of tests such as a bow-strength test, an air-tightness test, a performance test and the like are performed, and therefore, the test piece and the test bed are connected through a pipe, and the connection is also performed many times. In both cases, the use of common connection types (such as flared connection, flareless connection, spherical nozzle connection, etc.) requires the use of a wrench to tighten the outer nut, which is laborious and time-consuming. The automatic quick-change butt joint technology solves the problem of connection of replacement of the accessories of a machine at a switching position. The automatic positioning and butt joint transfusion of the device solves the problems that the mechanical assembly cannot be correctly positioned and the liquid leakage occurs in the transfusion process, and is the most important step for realizing the butt joint and transfusion technology.

The existing medical double-end transfusion interface comprises a medicine conveying interface and a medicine adding interface, wherein a combined cover is arranged on the medicine conveying interface, the combined cover adopts a structure without an inner cover, an aluminum foil composite film is arranged on the combined cover, the aluminum foil composite film adopts a flanging cladding structure, a rubber plug is arranged in the combined cover, a thick diaphragm with the thickness of O.3mm is arranged below the rubber plug, a medicine conveying pipe is arranged below the medicine conveying interface, and the combined cover and the medicine conveying interface are welded and sealed by two welding lines or a three-stage matching sealing mode; the medicine adding interface is provided with an aluminum foil composite film which is of a folded edge cladding structure, a rubber plug is arranged in the medicine adding interface, a medicine adding pipe is arranged below the medicine adding interface, and a puncture diaphragm is arranged in the medicine adding pipe; the connecting seat connects the medicine conveying interface and the medicine adding interface and separates the transfusion pipe and the medicine adding pipe.

This kind of medical double-end infusion interface lacks the calibration locating head, needs manual calibration, and the operation is complicated, especially adopts the buckle formula on the plug is fixed, and this kind of fixed mode has the risk of pulling out the plug together when adding medicine and outwards pulling out the needle, and current infusion bag double-end interface adopts interior outer cover structure in addition, the assembly of plug combined cover. In addition, the interface needs to be replaced frequently, materials are wasted, and liquid leakage can occur.

Disclosure of Invention

The invention aims to solve the problems and provides a traditional Chinese medicine extraction device which is automatic in butt joint, accurate in butt joint, simple and convenient to operate.

The purpose of the invention can be achieved by adopting the following technical scheme:

a bidirectional automatic positioning butt-joint infusion device comprises a base with a positioning groove, a first sliding head and a second sliding head with infusion channels, needles which are arranged on the first sliding head and the second sliding head and communicated with the infusion channels, a first connecting rod and a second connecting rod which are respectively hinged on the first sliding head and the second sliding head, and a motor which is used for driving the driving rod to rotate, wherein two ends of the first connecting rod and the second connecting rod are respectively hinged on the driving rod; a micro-fluidic chip is arranged in the positioning groove, and a sealing ring is arranged at the front end of the needle head; when the motor works, the motor drives the driving rod to drive the first connecting rod and the second connecting rod to rotate, and the first connecting rod and the second connecting rod drive the first sliding head and the second sliding head to slide in the opposite direction or in the back direction so that the first sliding head and the second sliding head are simultaneously butted with or separated from the microfluidic chip; when the first sliding head and the second sliding head are simultaneously butted with the microfluidic chip, liquid enters the microfluidic chip through the liquid conveying channel and the needle head of the first sliding head and enters the liquid conveying channel through the needle head of the second sliding head of the microfluidic chip to flow out.

As a preferable scheme, the centers of the first sliding head and the second sliding head are provided with positioning heads aligned with the microfluidic chip, and the front ends of the positioning heads are in a conical shape.

Preferably, the liquid conveying channels of the first sliding head and the second sliding head are respectively externally connected with the liquid supply element and the driving element through pipelines.

As a preferred scheme, the sealing ring is a Y-shaped sealing ring, and a check ring for preventing overturning is arranged at the rear end of the Y-shaped sealing ring.

Preferably, the inner diameter of the retainer ring is larger than the diameter of the needle, and the upper end of the retainer ring is lower than the upper end of the sealing ring.

As a preferable scheme, the first slider and the second slider are provided with limiting blocks for limiting the first slider and the second slider to slide in the vertical direction.

The implementation of the invention has the following beneficial effects:

1. the invention utilizes the bidirectional automatic positioning butt-joint infusion device to infuse the microfluidic chip, avoids the problem that the microfluidic chip needs to be taken over again after being used up, does not need additional distribution personnel, can independently complete the operation task only by pressing the control switch, saves the personnel cost, reduces the professional requirement for the operation, simplifies the operation flow, does not need manual operation for positioning and connection in the whole process, can realize the simultaneous injection of the input needle and the output needle by one power drive, and has simple, convenient and quick operation.

2. When the first sliding head and the second sliding head slide towards the direction of the microfluidic chip, the positioning head is firstly butted with the corresponding position of the microfluidic chip, and the conical part at the front end of the positioning head can be used for small-amplitude deviation correction, so that the needle head can be accurately connected into a capillary of the microfluidic chip. The structure realizes secondary positioning and deviation correction through the positioning head, and can ensure that the needle head is accurately connected into a capillary tube of the microfluidic chip.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a bidirectional automatic positioning and docking infusion device with a first slide head and a second slide head separated from a base.

Fig. 2 is a schematic structural diagram of the first sliding head and the second sliding head of the bidirectional automatic positioning and docking infusion device in a docking state with the base.

Fig. 3 is a schematic view of the connection structure of the needle and the microfluidic chip of the bidirectional automatic positioning and docking infusion device.

Fig. 4 is a partially enlarged view of a portion a of fig. 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.