A flip-type pipe switching mechanism

Abstract

The application discloses a turnover type pipeline switching mechanism, which is used for solving the problem that needle tubes cannot be reused in the field of medical devices. The pipeline switching mechanism comprises a needle sleeve, an inlet pipeline, an injection pipeline and a detection pipeline. The lower end of the inlet pipeline is connected with the upper end of the injection pipeline and the upper end of the detection pipeline. An adapter is arranged on the needle sleeve and is connected with the inlet pipeline. The adapter is used for connecting a syringe. A turnover assembly comprises a rotating handle, a rotating shaft and a baffle. The rotating shaft is rotatably arranged on the needle sleeve, and the baffle is arranged on the rotating shaft. The rotating shaft is arranged along the radial direction of the needle sleeve and is used for driving the baffle to block the injection pipeline and the detection pipeline, so that the inlet pipeline is connected with the injection pipeline and the detection pipeline. The rotating handle is arranged outside the needle sleeve and is connected with the rotating shaft. The rotating handle is used for driving the rotating shaft to rotate. An injection needle tube is arranged in the needle sleeve and is connected with the injection pipeline. A detection needle tube is arranged in the needle sleeve and is arranged in the injection needle tube. The detection needle tube is connected with the detection pipeline.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical equipment, in particular to a turnover type pipeline switching mechanism. BACKGROUND

[0002] With the increase of dermal filler use, many complications have been reported; the most serious of which is intravascular injection, which can lead to skin necrosis, blindness or stroke. During the process of collecting blood samples from veins, our needle tip penetrates the blood vessel wall and lumen. There is natural blood pressure in the veins and arteries of the human body. When the needle tip is inside the blood vessel lumen, blood will flow into the inner cavity of the needle and fill the chamber due to the blood pressure difference between the chamber and the blood vessel. Therefore, the blood in the chamber can be observed and it is known whether the needle tip is inside the blood vessel lumen.

[0003] The existing needle tube generally has two completely unconnected channels of injection needle tube and detection needle head, the injection needle tube is connected with the syringe, the detection needle head is connected with the detection device, the structure is relatively complex, and when the blood flows into the inner cavity of the needle, it needs to be pulled out to avoid dermal filler injection into the blood vessel, but the detection needle head is already filled with blood samples, and the needle tube needs to be replaced for re-injection, otherwise it will affect the next detection and cannot be reused. SUMMARY

[0004] The present application provides a turnover type pipeline switching mechanism, which aims to at least solve one of the technical problems existing in the prior art.

[0005] The technical scheme of the present application is a turnover type pipeline switching mechanism, which comprises:

[0006] In some embodiments, the needle sleeve is made of transparent material.

[0007] In some embodiments, the surface of the baffle is provided with a waterproof adhesive layer, which can abut against the needle sleeve.

[0008] In some embodiments, the turnover assembly further comprises a rotating handle, which is arranged outside the needle sleeve and connected with the rotating shaft, and the rotating handle is used to drive the rotating shaft to rotate.

[0009] In some embodiments, the rotating handle is in the shape of a cam.

[0010] In some embodiments, the turnover assembly further comprises a locking member, which is used to fix the baffle to the needle sleeve.

[0011] In some embodiments, the locking member is made of elastic material, and the locking member is arranged between the needle sleeve and the rotating handle.

[0012] In some embodiments, the locking member is provided with a notch.

[0013] In some embodiments, the needle cover is provided with a first locking hole, the rotating handle is provided with a second locking hole, and the locking member can pass through the first and second locking holes.

[0014] In some embodiments, the injection needle tube is a bottom sharp opening or a side opening.

[0015] The beneficial effects of the present application are as follows.

[0016] 1. During detection, the inlet pipeline is connected to the detection pipeline and the detection needle tube, so that blood can enter the inner cavity of the needle from the pipeline; during injection, the inlet pipeline is connected to the injection pipeline and the injection needle tube, so that the syringe can inject medicine from the pipeline; the baffle can only block one port at the same time, and the baffle is driven by the rotating shaft to block the two ports respectively, so that the inlet pipeline can be connected to the injection pipeline and the detection pipeline respectively; when the needle tip is inserted into the blood vessel, the needle tube is taken out, the needle cover is connected to the syringe, and physiological saline can be introduced to clean the blood in the injection needle, so that the injection needle can be reused; the handle is arranged outside, so that the operator can rotate the rotating shaft outside, which is convenient for operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structure diagram of a flip type pipeline switching mechanism of an embodiment of the present application;

[0018] Figure 2 is a cross-sectional structure diagram of a flip type pipeline switching mechanism of an embodiment of the present application;

[0019] Figure 3 is a structure diagram of a locking member of an embodiment of the present application;

[0020] Figure 4 is a schematic diagram of an injection needle tube being a bottom sharp opening and a side opening.

[0021] Corresponding reference signs:

[0022] Needle cover 100, inlet pipeline 110, injection pipeline 120, detection pipeline 130;

[0023] Flip assembly 200, rotating shaft 210, baffle 220, rotating handle 230, locking member 240, notch 241;

[0024] Injection needle tube 300;

[0025] Detection needle tube 400;

[0026] Adapter 500. DETAILED DESCRIPTION

[0027] The following will describe several embodiments of the present application, including the embodiments corresponding to the drawings. It should be understood that the drawings are used to assist in understanding the technical features and technical solutions of the present application, and should not be understood as limiting the scope of protection of the present application.

[0028] The concept, specific structure and generated technical effects of the present application will be described below in conjunction with the embodiments and drawings to fully understand the purpose, scheme and effect of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0029] It should be noted that, unless otherwise explicitly limited, when a certain feature is referred to as being "fixed", "connected", "installed" on another feature, it can be directly fixed, connected or installed on the other feature, or indirectly fixed, connected or installed on the other feature. The words "fixed", "connected", "installed" and the like should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0030] It should be noted that the orientation or positional relationship described in the present application, such as up, down, left, right, top, bottom, front, back, inside, outside, etc., is based on the orientation or positional relationship of the drawings or embodiments, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] It should be noted that the term "and / or" used in the present application includes any combination of one or more related listed items, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. is not included in the number, above, below, etc. is understood to include the number.

[0032] It should be noted that in the present application, the first, second, etc. are only used to distinguish technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0033] It should be noted that, unless otherwise explicitly limited, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art. The terms used in the specification are only used to describe the specific embodiments, and are not intended to limit the present application.

[0034] Referring to Figures 1-4 , the basic embodiment of the first aspect of the present application provides a flip type pipeline switching mechanism, comprising:

[0035] The needle sleeve 100 is provided with an inlet pipeline 110, an injection pipeline 120 and a detection pipeline 130, and the lower end of the inlet pipeline 110 can be communicated with the upper end of the injection pipeline 120 and the upper end of the detection pipeline 130, respectively.

[0036] The adapter 500 is arranged on the needle sleeve 100, and the adapter 500 is communicated with the inlet pipeline 110, and the adapter 500 is used for connecting the syringe.

[0037] The turnover assembly 200 comprises a rotating handle 230, a rotating shaft 210 and a baffle 220, the rotating shaft 210 is rotatably arranged on the needle sleeve 100, the baffle 220 is arranged on the rotating shaft 210, the rotating shaft 210 is arranged along the radial direction of the needle sleeve 100, the rotating shaft 210 is used for driving the baffle 220 to block the injection pipeline 120 and the detection pipeline 130, respectively, so that the inlet pipeline 110 can be communicated with the injection pipeline 120 and the detection pipeline 130, respectively, the rotating handle 230 is arranged outside the needle sleeve 100 and is connected with the rotating shaft 210, and the rotating handle 230 is used for driving the rotating shaft 210 to rotate.

[0038] The injection needle tube 300 is arranged on the needle sleeve 100, and the injection needle tube 300 is communicated with the injection pipeline 120.

[0039] The detection needle tube 400 is arranged on the needle sleeve 100 and arranged in the injection needle tube 300, and the detection needle tube 400 is communicated with the detection pipeline 130.

[0040] The turnover type pipeline switching mechanism of the basic embodiment of the first aspect of the present application is used for connecting the detection needle tube 400 with the detection pipeline 130.

[0041] During detection, the inlet pipeline 110 is communicated with the detection pipeline 130 and the detection needle tube 400, so that the blood can enter the inner cavity of the needle through the pipeline; during injection, the inlet pipeline 110 is communicated with the injection pipeline 120 and the injection needle tube 300, so that the syringe can inject the medicine through the pipeline; the baffle 220 can only block one port at the same time, and the baffle is driven by the rotating shaft 210 to block the two ports, respectively, so that the inlet pipeline 110 can be communicated with the injection pipeline 120 and the detection pipeline 130, respectively; when the needle tip is inserted into the blood vessel, after the needle tube is taken out, the needle sleeve 100 is connected with the syringe, and the physiological saline can be introduced to clean the blood in the injection needle, so that the injection needle can be reused; through the handle arranged outside, the operator can rotate the rotating shaft 210 outside, and the operation is convenient.

[0042] It can be understood that the detection needle is arranged in the injection needle tube, and the diameter of the injection needle tube is smaller than the diameter of the detection needle, so that the detection needle can be arranged in the injection needle tube, and the inner cavity of the injection needle tube is the space between the inner wall of the detection needle and the outer wall of the detection needle, and the inner cavity of the detection needle is the space inside the detection needle.

[0043] In some embodiments, the needle cover 100 is made of transparent material. By the needle cover 100 made of transparent material, the bleeding condition can be observed.

[0044] In some embodiments, the surface of the baffle 220 is provided with a waterproof adhesive layer, which can abut against the needle cover 100. The waterproof adhesive layer is made of rubber or silicone, which can prevent the injection pipeline 120 and the detection pipeline 130 from being connected by abutting against the upper part of the injection pipeline 120 and the detection pipeline 130 respectively, thereby improving the air tightness.

[0045] In some embodiments, the rotating handle 230 is in the shape of a cam. The cam-shaped rotating handle 230 is convenient for the operator to rotate, and according to the protruding part of the cam, the operator can determine whether the rotating angle of the baffle is in place.

[0046] In some embodiments, the turnover assembly 200 further comprises a locking member 240, which is used to fix the baffle 220 to the needle cover 100. The locking member 240 can prevent the baffle 220 from rotating, prevent the baffle from being touched during transportation or use, causing the baffle to rotate and affecting the air tightness; during detection, the injection pipeline 120 may be pierced into a large blood vessel, causing the baffle to be flipped up by the blood pressure, and the locking member 240 can reinforce the baffle; during injection, the baffle is subjected to downward pressure and cannot continue to rotate downward, so the locking member 240 can be used to reinforce the baffle in the non-use or detection state, and the locking member 240 can be removed during injection to allow the baffle to rotate.

[0047] In some embodiments, the locking member 240 is made of elastic material, and is arranged between the needle cover 100 and the rotating handle 230. By abutting against the needle cover 100 and the rotating handle 230 respectively, the friction between the needle cover 100 and the rotating handle 230 is increased, which can prevent the rotating handle 230 from rotating.

[0048] Further, the locking member 240 is provided with a notch 241, so that the locking member 240 can be separated from the rotating handle 230, thereby facilitating the rotation of the rotating handle 230.

[0049] In some embodiments, the needle cover 100 is provided with a first locking hole, the rotating handle 230 is provided with a second locking hole, and the locking member 240 can pass through the first locking hole and the second locking hole. By inserting the locking member 240 into the first locking hole and the second locking hole, the rotating handle 230 and the needle cover 100 are relatively fixed, and after the locking member 240 is pulled out, the rotating handle 230 can rotate.

[0050] In some embodiments, a connector 500 is further included, which is arranged on the needle cover 100 and communicates with the inlet pipeline 110. The connector 500 is used to connect a syringe.

[0051] In some embodiments, the injection needle tube is a bottom sharp opening or a side opening. The solution of the embodiments of the present application is applicable to Figure 4 The injection needle tube 300 of the two joints 100 shown above is expanded in scope of application. It should be noted that the several embodiments of the present application can be described in the present specification using terms such as "one embodiment", "some embodiments", "basic embodiment", "extended embodiment", etc., and the specific features, structures, materials or characteristics in the several embodiments can be combined as long as they are consistent with the principles and purposes of the present application.

[0052] Although some embodiments of the present application have been shown and described in the present specification, the present application should not be limited to the above embodiments, but as long as the same or equivalent means achieve the technical effects of the present application, any changes, modifications, equivalent replacements and equivalent variations of these embodiments within the spirit and principles of the present disclosure without departing from the principles and purposes of the present application should be included in the protection scope of the present disclosure, and should be considered to belong to the protection scope of the present application.

Claims

1. A flip-type tubing switching mechanism for preventing dermal filler injection into a blood vessel, characterized by, The utility model relates to a needle sleeve (100) is provided with inlet pipeline (110), injection pipeline (120) and detection pipeline (130), the lower end of inlet pipeline (110) can communicate the upper end of injection pipeline (120) and the upper end of detection pipeline (130) respectively, the adapter (500) is arranged on needle sleeve (100), the adapter (500) communicates with inlet pipeline (110), the adapter (500) is used for connecting syringe, the turnover assembly (200) includes rotating handle (230), pivot (210), baffle (220) and rotating handle (230), pivot (210) rotatably is arranged on needle sleeve (100), baffle (220) is arranged on pivot (210), pivot (210) is arranged along the radial of needle sleeve (100), pivot (210) is used for driving baffle (220) respectively and blocks injection pipeline (120) and detection pipeline (130), makes inlet pipeline (110) can communicate injection pipeline (120) and detection pipeline (130) respectively, rotating handle (230) is arranged outside needle sleeve (100) and is connected with pivot (210), rotating handle (230) is used for driving pivot (210) rotation, the turnover assembly (200) further includes locking piece (240), locking piece (240) is used for making baffle (220) fixed on needle sleeve (100), locking piece (240) is made of elastic material, locking piece (240) is arranged between needle sleeve (100) and rotating handle (230), injection needle tube (300) is arranged in needle sleeve (100), injection needle tube (300) communicates injection pipeline (120), detection needle tube (400) is arranged in needle sleeve (100) and is arranged in injection needle tube (300), detection needle tube (400) communicates detection pipeline (130). The needle sleeve (100) is made of transparent material. The surface of the baffle (220) is provided with a waterproof adhesive layer, and the waterproof adhesive layer can abut against the needle sleeve (100). The rotating handle (230) is in the form of a cam. The locking piece (240) is provided with a notch (241). The needle sleeve (100) is provided with a first locking hole, the rotating handle (230) is provided with a second locking hole, and the locking piece (240) can pass through the first locking hole and the second locking hole. The injection needle tube is a bottom sharp opening or a side opening.

2. The roll-over line switching mechanism of claim 1, wherein ​ 3. The roll-over line switching mechanism of claim 1, wherein ​ 4. The roll-over line switching mechanism of claim 1, wherein ​ 5. The roll-over line switching mechanism of claim 1, wherein ​ 6. The roll-over line switching mechanism of claim 1, wherein ​ 7. The roll-over line switching mechanism of claim 1, wherein ​

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