CN219539125U - Pipeline switching structure of injection device - Google Patents
Pipeline switching structure of injection device Download PDFInfo
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- CN219539125U CN219539125U CN202223511227.1U CN202223511227U CN219539125U CN 219539125 U CN219539125 U CN 219539125U CN 202223511227 U CN202223511227 U CN 202223511227U CN 219539125 U CN219539125 U CN 219539125U
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- pipeline
- injection
- needle
- detection
- rotating shaft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a pipeline switching structure of an injection device, which aims to solve the problem that a needle tube cannot be reused in the field of medical equipment, and comprises a needle sleeve, wherein the needle sleeve is provided with an inlet pipeline, an injection pipeline and a detection pipeline, and the lower end of the inlet pipeline can be respectively communicated with the upper end of the injection pipeline and the upper end of the detection pipeline; the overturning assembly comprises a rotating shaft and a baffle, the rotating shaft is rotatably arranged on the needle sleeve, the baffle is arranged on the rotating shaft, the rotating shaft is arranged along the radial direction of the needle sleeve, and the rotating shaft is used for driving the baffle to block the injection pipeline and the detection pipeline respectively, so that the inlet pipeline can be communicated with the injection pipeline and the detection pipeline respectively; the injection needle tube is arranged on the needle sleeve and is communicated with the injection pipeline; the detection needle tube is arranged in the needle sleeve and the injection needle tube, and the detection needle tube is communicated with the detection pipeline.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to a pipeline switching structure of an injection device.
Background
With the increasing use of dermal fillers, a number of complications have been reported; of these, the most serious is intravascular injection, which may lead to skin necrosis, blindness or stroke. During the process of collecting a blood sample from a vein, our needle tip penetrates the vessel wall and lumen. The veins and arteries of the human body have natural blood pressure. When the needle tip is in the lumen of the blood vessel, blood will flow into the lumen of the needle and fill the lumen due to the blood pressure differential between the lumen and the blood vessel. Thus, it is possible to observe the blood in the lumen and to know if the needle tip is in the lumen of the blood vessel.
The existing injection needle tube is generally provided with two channels which are not communicated completely, namely the injection needle tube and the detection needle head, when blood flows into the inner cavity of the needle, the blood needs to be pulled out, and the blood is prevented from being injected into blood vessels, but the detection needle head is filled with blood samples, the needle tube is used for reinjection, the needle tube needs to be replaced, otherwise, the next detection is easy to be influenced, and the needle tube cannot be reused.
Disclosure of Invention
The utility model provides a pipeline switching structure of an injection device, which aims at solving at least one of the technical problems existing in the prior art.
The technical scheme of the utility model is a pipeline switching structure of an injection device, which comprises:
the needle sleeve is provided with an inlet pipeline, an injection pipeline and a detection pipeline, wherein the lower end of the inlet pipeline can be respectively communicated with the upper end of the injection pipeline and the upper end of the detection pipeline;
the overturning assembly comprises a rotating shaft and a baffle plate, the rotating shaft is rotatably arranged on the needle sleeve, the baffle plate is arranged on the rotating shaft, the rotating shaft is arranged along the radial direction of the needle sleeve, and the rotating shaft is used for driving the baffle plate to block the injection pipeline and the detection pipeline respectively, so that the inlet pipeline can be communicated with the injection pipeline and the detection pipeline respectively;
the injection needle tube is arranged on the needle sleeve and is communicated with the injection pipeline;
the detection needle tube is arranged in the needle sleeve and the injection needle tube, and the detection needle tube is communicated with the detection pipeline.
Further, the needle sheath is made of a transparent material.
Further, the surface of baffle is equipped with waterproof glue film, waterproof glue film can with needle cover butt.
Further, the overturning assembly further comprises a rotating handle, wherein the rotating handle is arranged outside the needle sleeve and connected with the rotating shaft, and the rotating handle is used for driving the rotating shaft to rotate.
Further, the rotating handle is in a cam shape.
Further, the flip assembly may further comprise a locking member for securing the shield to the needle hub.
Further, the locking member is made of an elastic material, and the locking member is provided between the needle sheath and the rotating handle.
Further, the needle cover is provided with a first locking hole, the rotating handle is provided with a second locking hole, and the locking piece can pass through the first locking hole and the second locking hole.
Further, the needle sleeve is further provided with an adapter, and the adapter is arranged on the needle sleeve and is communicated with the inlet pipeline.
Further, the injection needle tube is provided with a sharp bottom opening or a side opening.
The beneficial effects of the utility model are as follows.
1. The detection needle tube is communicated with the detection pipeline.
In the pipeline switching structure of the injection device according to the basic embodiment of the first aspect of the utility model, when in detection, the inlet pipeline is communicated with the detection pipeline and the detection needle tube, so that blood can enter the inner cavity of the needle from the passage, and when in injection, the inlet pipeline is communicated with the injection pipeline and the injection needle tube, so that the injector can inject liquid medicine from the passage; the baffle can only block one port at the same time, and the baffle is driven by the rotating shaft to block two ports respectively, so that the inlet pipeline can be communicated with the injection pipeline and the detection pipeline respectively.
Drawings
FIG. 1 is a schematic view of a circuit switching structure of an injection device according to an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of a switching structure of a pipeline of an injection device according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a locking element according to an embodiment of the present utility model;
fig. 4 is a schematic view of an injection needle cannula with a sharp bottom opening and a side opening.
Reference numerals:
needle hub 100, inlet line 110, injection line 120, and detection line 130;
the turnover assembly 200, the rotating shaft 210, the baffle 220, the rotating handle 230, the locking piece 240 and the notch 241;
injection needle 300;
detecting the needle tube 400;
adapter 500.
Detailed Description
The following description will describe several embodiments of the present utility model, including the embodiments corresponding to the accompanying drawings, it being understood that the drawings are for aiding in the understanding of the technical features and technical solutions of the present utility model, and should not be construed as limiting the scope of the present utility model.
The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, aspects, and effects of the present utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
It should be noted that, unless explicitly defined otherwise, when a certain feature is referred to as being "fixed," "connected," or "mounted" on another feature, it may be directly fixed or connected to the other feature or may be indirectly fixed or connected to the other feature, and the terms such as "fixed," "connected," or "mounted" should be interpreted broadly, so that those skilled in the art can reasonably determine the specific meaning of the terms in the present utility model in combination with the specific contents of the technical scheme.
It should be noted that, the description of the orientation or positional relationship indicated by the upper, lower, left, right, top, bottom, front, rear, inner, outer, etc. used in the present utility model is based on the orientation or positional relationship of the drawings or the embodiments, only for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in the specific orientation, and thus should not be construed as limiting the present utility model.
It is noted that the term "and/or" as used in the present utility model includes any combination of one or more of the listed items, a plurality of means one or more, a plurality of means two or more, greater than, less than, exceeding, etc. are understood to exclude this number, and above, below, within, etc. are understood to include this number.
It should be noted that, if the first and second descriptions are only used for distinguishing technical features in the present utility model, the description should not be construed as indicating or implying relative importance or implying the number of the indicated technical features or implying the precedence relationship of the indicated technical features.
It is to be understood that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art unless explicitly defined otherwise. The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Referring to fig. 1 to 4, a basic embodiment of a first aspect of the present utility model provides a line switching structure of an injection device, comprising:
the needle sleeve 100 is provided with an inlet pipeline 110, an injection pipeline 120 and a detection pipeline 130, wherein the lower end of the inlet pipeline 110 can be respectively communicated with the upper end of the injection pipeline 120 and the upper end of the detection pipeline 130;
the overturning assembly 200 comprises a rotating shaft 210 and a baffle 220, wherein 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, and the rotating shaft 210 is used for driving the baffle 220 to respectively block the injection pipeline 120 and the detection pipeline 130, so that the inlet pipeline 110 can be respectively communicated with the injection pipeline 120 and the detection pipeline 130;
an injection needle tube 300 arranged on the needle sleeve 100, wherein the injection needle tube 300 is communicated with the injection pipeline 120;
the detection needle tube 400 is arranged in the needle sleeve 100 and the injection needle tube 300, and the detection needle tube 400 is communicated with the detection pipeline 130.
In the line switching structure of the injection device according to the basic embodiment of the first aspect of the present utility model, in the case of detection, the inlet line 110 is connected to the detection line 130 and the detection needle tube 400, so that blood can enter the lumen of the needle from the passage, and in the case of injection, the inlet line 110 is connected to the injection line 120 and the injection needle tube 300, so that the injector can inject liquid medicine from the passage; the baffle 220 can only block one port at the same time, and the baffle is driven by the rotating shaft 210 to block 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 a blood vessel, after the needle tube is taken out, the needle sleeve 100 is connected with the injector, and normal saline can be introduced to clean blood in the injection needle, so that the injection needle can be reused.
It can be understood that the detecting needle is arranged in the injection needle tube, and the diameter of the injection needle tube is smaller than that of the detecting needle, so that the detecting needle can be arranged in the injection needle tube, the inner cavity of the injection needle tube is a space between the inner wall of the detecting needle tube and the outer wall of the detecting needle tube, and the inner cavity of the detecting needle is a space inside the detecting needle tube.
In some embodiments, the needle hub 100 is made of a transparent material. Bleeding can be observed through the needle hub 100, which is made of a transparent material.
In some embodiments, the surface of the shield 220 is provided with a layer of waterproof glue that can abut the needle hub 100. The waterproof glue layer is made of rubber or silica gel, and the baffle 220 is respectively abutted against the upper parts of the injection pipeline 120 and the detection pipeline 130, so that the injection pipeline 120 and the detection pipeline 130 can be prevented from being communicated, and the air tightness is improved.
In some embodiments, the flipping assembly 200 further comprises a rotating handle 230, wherein the rotating handle 230 is disposed outside the needle hub 100 and connected to the rotating shaft 210, and the rotating handle 230 is used to drive the rotating shaft 210 to rotate. The handle is arranged outside, so that an operator can rotate the rotating shaft 210 outside, and the operation is convenient.
In some embodiments, the turning handle 230 is cam-shaped. The cam-shaped rotating handle 230 is convenient for the operator to rotate, and allows the operator to judge whether the rotation angle of the barrier is in place or not according to the convex portion of the cam.
In some embodiments, the flipping assembly 200 further comprises a locking member 240, the locking member 240 being used to secure the shield 220 to the needle hub 100. The locking member 240 can prevent the shutter 220 from rotating, and prevent the shutter from rotating due to touching the rotating handle 230 during transportation or use, thereby affecting the air tightness; during detection, the injection pipeline 120 may prick a large blood vessel to cause the baffle to be overturned by upward blood pressure force, and the baffle can be reinforced by the locking piece 240; the baffle is pressed downwards during injection, and the baffle can not rotate downwards continuously, so that the baffle can be reinforced by using the locking piece 240 in the state of detecting the later, and the baffle can rotate by detaching the locking piece 240 during injection.
In some embodiments, the locking element 240 is made of an elastic material, and the locking element 240 is disposed between the needle hub 100 and the rotating handle 230. By the elastic material abutting against the needle hub 100 and the rotating handle 230, respectively, the frictional force between the needle hub 100 and the rotating handle 230 is increased, and the rotating handle 230 can be prevented from rotating.
Further, the locking member 240 is provided with a notch 241 to enable the locking member 240 to be separated from the rotating handle 230, so as to facilitate the rotation of the rotating handle 230.
In some embodiments, the needle hub 100 is provided with a first locking aperture and the rotating handle 230 is provided with a second locking aperture, the locking member 240 being able to pass through the first and second locking apertures. The rotating handle 230 and the needle hub 100 are relatively fixed by inserting the locking member 240 into the first locking hole and the second locking hole, and the rotating handle 230 can be rotated after the locking member 240 is pulled out.
In some embodiments, adapter 500 is further included, adapter 500 being disposed on needle hub 100, adapter 500 being in communication with inlet line 110. Adapter 500 is used to connect a syringe.
In some embodiments, the injection needle cannula is a bottom sharp opening or a side opening. The embodiment of the present utility model is applicable to the injection needle 300 of the two connectors 100 shown in fig. 4 to expand its applicable scope.
It is noted that terms like "one embodiment," "some embodiments," "base embodiments," "extended embodiments," and the like may be used throughout this specification to describe several embodiments of the utility model, as a particular feature, structure, material, or characteristic of the several embodiments may be combined without departing from the principles and spirit of the present utility model.
While there has been shown and described what is considered to be certain embodiments of the present utility model, it is to be understood that the utility model is not limited to the above-described embodiments, but is to be accorded the widest scope consistent with the principles and novel features of the present utility model.
Claims (9)
1. A line switching structure of an injection device, comprising:
the needle sleeve (100) is provided with an inlet pipeline (110), an injection pipeline (120) and a detection pipeline (130), wherein the lower end of the inlet pipeline (110) can be respectively communicated with the upper end of the injection pipeline (120) and the upper end of the detection pipeline (130);
the overturning assembly (200) comprises a rotating shaft (210) and a baffle plate (220), wherein the rotating shaft (210) is rotatably arranged on the needle sleeve (100), the baffle plate (220) is arranged on the rotating shaft (210), the rotating shaft (210) is arranged along the radial direction of the needle sleeve (100), and the rotating shaft (210) is used for driving the baffle plate (220) to respectively block the injection pipeline (120) and the detection pipeline (130), so that the inlet pipeline (110) can be respectively communicated with the injection pipeline (120) and the detection pipeline (130);
an injection needle tube (300) arranged on the needle sleeve (100), wherein the injection needle tube (300) is communicated with the injection pipeline (120);
and the detection needle tube (400) is arranged in the needle sleeve (100) and the injection needle tube (300), and the detection needle tube (400) is communicated with the detection pipeline (130).
2. The tubing switching structure of an injection device according to claim 1, wherein the needle hub (100) is made of a transparent material.
3. The line switching structure of an injection device according to claim 1, characterized in that the surface of the baffle plate (220) is provided with a waterproof glue layer, which can be abutted against the needle sheath (100).
4. The tubing switching structure of an injection device according to claim 1, wherein the flipping assembly (200) further comprises a rotating handle (230), the rotating handle (230) being disposed outside the needle sheath (100) and connected to the rotating shaft (210), the rotating handle (230) being configured to drive the rotating shaft (210) to rotate.
5. The line switching structure of an injection device according to claim 4, wherein the turning handle (230) has a cam shape.
6. The tubing switching structure of an injection device according to claim 4, wherein the flip assembly (200) further comprises a locking member (240), the locking member (240) being adapted to secure the shield (220) to the needle hub (100).
7. The line switching structure of an injection device according to claim 6, wherein the locking member (240) is made of an elastic material, and the locking member (240) is provided between the needle hub (100) and the rotation handle (230).
8. The line switching structure of an injection device according to claim 6, wherein the needle hub (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 and second locking holes.
9. The tubing switching structure of an injection device according to claim 1, wherein the injection needle tube is a sharp-bottomed opening or a side-open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223511227.1U CN219539125U (en) | 2022-12-28 | 2022-12-28 | Pipeline switching structure of injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223511227.1U CN219539125U (en) | 2022-12-28 | 2022-12-28 | Pipeline switching structure of injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219539125U true CN219539125U (en) | 2023-08-18 |
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ID=87736734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223511227.1U Active CN219539125U (en) | 2022-12-28 | 2022-12-28 | Pipeline switching structure of injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219539125U (en) |
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2022
- 2022-12-28 CN CN202223511227.1U patent/CN219539125U/en active Active
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| GR01 | Patent grant |