An arterial puncture needle that is easy to operate

Abstract

The utility model discloses a kind of arterial puncture needles of convenient operation, it is related to arterial puncture needle technical field, including puncture subassembly, interface, air plug and barrel;The needle end of interface and barrel is closed and adhered, the piston movable end of barrel and air plug is closed and adhered;It further includes the first fixing member of connecting puncture subassembly and barrel;Second fixing member of connecting barrel and air plug;The utility model has the advantages that: by sequentially arranging puncture subassembly, barrel and air plug, the needle end of the left end of compact barrel is adhered by the interface of needle core left side, air plug is inserted into the piston that the right end of compact barrel supplies and extends into movable port, is plugged by air plug, so that the blood passage of communication is formed between needle core, barrel air plug inside, finally, the first fixing member is used to fix the adhesion of needle core and barrel, and the second fixing member is used to fix the adhesion of air plug and compact barrel, and the operation of combination production is convenient.

Description

Technical Field

[0001] This utility model relates to the field of arterial puncture needle technology, and more specifically to a convenient arterial puncture needle. Background Technology

[0002] An arterial puncture needle is a medical device specifically designed for puncturing arterial blood vessels. It is mainly used to collect arterial blood samples or to perform intra-arterial treatments (such as arterial cannulation and arterial angiography).

[0003] An indwelling intravenous catheter is a medical device used in healthcare, typically for short-term or long-term intravenous infusions, drug injections, blood collection, etc. Its structure generally includes a needle core, catheter, catheter hub, and protective cap (e.g., ...). Figure 1 (as shown)

[0004] A syringe is a medical device used to draw or inject liquids. It is widely used in procedures such as drug injection, blood collection, and wound irrigation. Its structure generally includes a needle, syringe barrel, and plunger (e.g., ...). Figure 1 (as shown)

[0005] In emergency situations where rapid arterial blood gas analysis or other medical procedures requiring arterial pressure monitoring are needed, needles specifically designed for arterial puncture may be insufficient or unavailable in a timely manner, especially in resource-constrained environments.

[0006] While indwelling intravenous catheters and syringes are inexpensive and readily available, the short distance from which blood returns through indwelling intravenous catheters makes it difficult to accurately determine whether the returned blood is arterial blood (i.e., it is difficult to determine whether the needle has accurately entered the artery).

[0007] Therefore, there is an urgent need to develop an arterial puncture device that can be easily operated and combined to obtain arterial blood information with improved accuracy. Utility Model Content

[0008] The purpose of this utility model is to provide a convenient arterial puncture needle in order to solve the above-mentioned technical problems.

[0009] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0010] This utility model proposes a convenient arterial puncture needle, including a puncture component, an interface, and a vent plug on an indwelling venous needle. The interface is located on the puncture component, and the vent plug is fitted and embedded in the interface.

[0011] This also includes the syringe barrel;

[0012] The interface is sealed and fitted to the needle end of the cylinder, and the piston movable end of the cylinder is sealed and fitted to the vent plug.

[0013] It also includes a first fastener connecting the puncture assembly and the barrel for stabilizing the fit of the needle tip of the barrel at the interface;

[0014] A second fixing member connects the cylinder and the vent plug to ensure a tight seal between the piston moving end of the cylinder and the vent plug.

[0015] As a preferred embodiment of this utility model, the first fixing member is adhesive tape, which simultaneously adheres to the puncture component and the cylinder.

[0016] As a preferred embodiment of this utility model, the second fixing member is adhesive tape, which simultaneously adheres to both the cylinder body and the vent plug.

[0017] As a preferred embodiment of the present invention, the puncture assembly includes a catheter portion and a needle core portion that is detachably fixed thereon, with the interface located on the needle core portion.

[0018] The beneficial effects of this utility model are as follows:

[0019] By arranging the puncture assembly, cylinder, and vent plug in sequence, the needle tip on the left end of the cylinder is pressed against the interface on the left side of the needle core. The vent plug is inserted into the piston-extending port on the right end of the pressing cylinder and blocked by the vent plug, thus forming a blood passage between the needle core, the cylinder, and the vent plug. Finally, the first fixing component is used to fix the needle core and the cylinder, and the second fixing component is used to fix the vent plug and the pressing cylinder. The assembly process is convenient. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of the breathable plug of this utility model.

[0022] Reference numerals: puncture assembly-1, interface-2, vent plug-3, cylinder-4, first fixing member-5, second fixing member-6, catheter section-11, needle core section-12. Detailed Implementation

[0023] like Figures 1-2 As shown, this utility model proposes: a convenient arterial puncture needle, including a puncture component 1, an interface 2, and a vent plug 3 on an indwelling venous needle, wherein the interface 2 is disposed on the puncture component 1, and the vent plug 3 is fitted and embedded in the interface 2.

[0024] The puncture assembly 1 includes a catheter part 11 and a needle core part 12 that can be detachably fixed thereon. An interface 2 is provided on the needle core part 12, and the right end of the needle core part 12 is connected and fixed to the vent plug 3 through the interface 2.

[0025] The indwelling intravenous catheter uses different sizes of 18-22G (Gauge);

[0026] It also includes the syringe barrel 4, which is a 5ml or 10ml transparent syringe;

[0027] The puncture component 1 and the vent plug 3 of the intravenous indwelling needle are taken, and the interface 2 of the vent plug 3 at the puncture component 1 (i.e., the needle core 12) is disassembled beforehand; at the same time, the barrel 4 (i.e. the syringe barrel part) of the syringe is taken.

[0028] The interface 2 is sealed and fitted to the needle end of the cylinder 4, and the piston movable end of the cylinder 4 is sealed and fitted to the vent plug 3. Figure 1 As shown, the puncture assembly 1, the cylinder 4 and the vent plug 3 are arranged in sequence. The needle tip of the left end of the cylinder 4 is pressed and sealed by the interface 2 on the left side of the needle core 12. The vent plug 3 is inserted into the piston insertion port on the right end of the cylinder 4 and blocked by the vent plug 3, so that a blood passage is formed between the needle core 12, the cylinder 4 and the vent plug 3.

[0029] The structure of the vent plug 3 can be as follows: Figure 2 As shown, the plug has an opening at the left end and a fine hole at the right end to facilitate left and right communication as an exhaust component. The vent plug 3 is made of a soft material, such as polytetrafluoroethylene or silicone.

[0030] It also includes a first fixing member 5 that connects the puncture assembly 1 and the cylinder 4 to stabilize the needle end of the cylinder 4 at the interface 2. In order to make the connection and contact position of the cylinder 4 and the needle core 12 stable during assembly, the first fixing member 5 is used for fixing to facilitate subsequent operation.

[0031] The first fixing member 5 is an adhesive tape (such as medical tape) and it simultaneously attaches the puncture component 1 and the cylinder 4. The first fixing member 5 can also be a solid adhesive, etc.

[0032] The second fixing member 6 connects the cylinder 4 and the vent plug 3 to stabilize the piston moving end of the cylinder 4 and the vent plug 3 in a tight fit. In order to make the connection and fit of the cylinder 4 and the vent plug 3 stable during assembly, the second fixing member 6 is required for fixing to facilitate subsequent operation.

[0033] The second fixing member 6 is an adhesive tape (such as medical tape) that simultaneously attaches the cylinder 4 and the vent plug 3. The second fixing member 6 can also be a solid adhesive, etc.

[0034] When using this arterial puncture needle:

[0035] Select a suitable arterial puncture site (such as the radial artery, femoral artery, etc.) and disinfect the puncture site. Insert the puncture component 1 into the skin at an appropriate angle (usually 30°~45°) and advance it slowly. Observe the rate at which bright red blood appears in the cylinder 4 and the blood return is observed to determine whether it is arterial blood return. This indicates that the needle tip of the needle core 12 has entered the artery. The vent plug 3 provides control over the rate of air release after blood enters the cylinder 4. After confirming blood return, advance it another 1~2 mm to ensure that the outer cannula of the catheter 11 enters the artery. Separate the needle core 12 from the catheter 11, remove the needle core and the cylinder 4, leaving only the catheter 11 in the artery and stabilizing the position of the catheter 11 before proceeding with subsequent operations.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A convenient arterial puncture needle, comprising a puncture component (1), an interface (2), and a vent plug (3) on an indwelling venous needle, wherein the interface (2) is disposed on the puncture component (1), and the vent plug (3) is fitted and embedded in the interface (2); It also includes the syringe barrel (4); Its features are, The interface (2) is sealed and fitted to the needle end of the cylinder (4), and the piston moving end of the cylinder (4) is sealed and fitted to the vent plug (3). It also includes a first fastener (5) connecting the puncture assembly (1) and the cylinder (4) for stabilizing the needle tip of the cylinder (4) at the interface (2); A second fixing member (6) connects the cylinder (4) and the vent plug (3) to stabilize the piston moving end of the cylinder (4) and the vent plug (3) in a tight fit.

2. The convenient arterial puncture needle according to claim 1, characterized in that, The first fastener (5) is adhesive tape, which simultaneously attaches the puncture assembly (1) and the cylinder (4).

3. The convenient arterial puncture needle according to claim 1, characterized in that, The second fastener (6) is adhesive tape, which is used to attach both the cylinder (4) and the vent plug (3).

4. The convenient arterial puncture needle according to claim 1, characterized in that, The puncture assembly (1) includes a catheter part (11) and a needle core part (12) that is detachably fixed thereon, and an interface (2) is provided on the needle core part (12).

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