Anti-needlestick safety needle

Abstract

An anti-needlestick safety needle, comprising: a needle tubing (11), a sleeve member (12), an operating handle (13), and a core rod (14) in communication with the needle tubing (11). The needle tubing (11) comprises a connecting end (111). The connecting end (111) is a tail end of the needle tubing (11) connected to the core rod (14). The connecting end (111) is located within the sleeve member (12) and is located on a front side of the operating handle (13), i.e., one side where a needle head of the needle tubing (11) is located. A magnifying mechanism (15) is arranged on the sleeve member (12) and used for magnifying an image of the connecting end (111). By means of the design that the connecting end (111) is positioned within the sleeve member (12) and is located on the front side of the operating handle (13), it is ensured that the hand of an operator does not obstruct the connecting end (111) of the needle tubing (11) during blood sampling with one hand, and the operator is allowed to clearly observe the blood return condition during blood sampling, so that the real-time operational monitoring and feedback are improved, thereby reducing risks in blood sampling operation. By means of the arrangement of the magnifying mechanism (15), a visual field magnifying effect is provided, so that the operator can observe the blood return condition more clearly, thereby reducing errors and improving operational accuracy.

Description

Anti-needlestick safety needle Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to an anti-needlestick safety needle. Background Art

[0002] Existing lancet designs limit the efficiency and accuracy of blood collection operations. For example, a Chinese utility model patent (publication number CN205649700U) discloses an acupuncture device. When the operator operates with one hand, the hand blocks the end of the needle tube, thereby hindering the timely observation of blood reflux during the blood collection process.

[0003] In addition, since the blood collection tube is usually relatively thin, the flow rate of blood return is small, making the blood return unclear and making it difficult for the operator to accurately observe the blood return situation.

[0004] Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defects in the prior art and provide an anti-needlestick safety needle.

[0006] The present invention solves the above-mentioned technical problems through the following technical solutions: a needle-stick-proof safety needle, comprising: a needle tube, a kit, an operating handle and a core rod connected to the needle tube, the needle tube comprising a connecting end, the connecting end being the end where the needle tube is connected to the core rod, the connecting end being located inside the kit and on the front side of the operating handle, the front side of the operating handle being the side where the needle head of the needle tube is located, the kit being provided with a magnifying mechanism, the magnifying mechanism being used to amplify the image of the connecting end.

[0007] In this solution, the connector is placed inside the kit, located in front of the operating handle. This ensures that the operator's hand does not obstruct the needle's connection during single-handed blood collection, allowing the operator to clearly observe blood return during the blood collection process. This significantly improves real-time monitoring and feedback, thereby reducing the risk of blood collection. The incorporation of a magnifying mechanism within the kit further enhances the operator's field of view, allowing the operator to more clearly observe blood return, reducing errors and improving accuracy.

[0008] Preferably, the needle-stick-proof safety needle further comprises a connecting mechanism, the connecting mechanism being used to connect the kit and the core rod, and the amplifying mechanism being located on a side of the connecting mechanism close to the needle head of the needle tube.

[0009] In this solution, the structural arrangement enables the positions of the connecting mechanism and the amplifying mechanism to be staggered, fully utilizing the position of the surface of the kit and making the overall structure more compact.

[0010] Preferably, the magnifying mechanism is a convex lens.

[0011] In this solution, the convex lens is a relatively simple optical component that is easy to manufacture and maintain. It does not require complex electronic or digital technology, thus offering advantages of high reliability and low cost. Furthermore, the convex lens provides an immediate magnification effect, eliminating the need for image processing or other technical delays, facilitating real-time monitoring and immediate feedback of blood return.

[0012] Preferably, the sleeve is provided with a limiting portion, which is a protrusion on the surface of the sleeve.

[0013] In this solution, the raised stop on the kit provides additional safety during needle removal. When the operator needs to remove the needle, the raised stop prevents the operator's hand from accidentally moving or slipping, thereby reducing the risk of accidental punctures or other operational risks.

[0014] Preferably, the limiting portion is located at an end of the kit close to the needle of the needle tube.

[0015] In this solution, the limit part is set at the end of the kit close to the syringe needle, and sufficient space is reserved on the surface of the kit to place the hand, which maximizes the use of the space of the kit. When the operator pulls out the needle, it is convenient to place the hand to apply force to the kit, thereby improving the convenience of operation.

[0016] Preferably, the surface of the kit includes a pressing portion, which is located on a side of the limiting portion away from the needle head of the needle tube, and is in an inwardly concave arc shape.

[0017] In this solution, the concave arc-shaped pressing portion is closer to the natural curve of the finger, allowing the operator to press the kit more easily, the kit is better stressed, the risk of hand slippage or instability is reduced, and the stability of the operation is improved.

[0018] Preferably, the connecting mechanism, the amplifying mechanism and the limiting portion are distributed in sequence on the kit.

[0019] In this solution, the sequential distribution of the connecting mechanism, the amplifying mechanism and the limiting portion makes the structure of the entire kit more compact, helps to reduce the overall size, and makes it easier to carry and store.

[0020] Preferably, the connecting end of the needle tube is close to the middle position of the core rod.

[0021] In this solution, the needle tube connection end is close to the middle position of the core rod, which prevents the needle tube from being inserted too short and ensures that the needle tube will not be skewed or deviate from the needle seat during the assembly process; in addition, it prevents the needle tube from being inserted too long, avoids unnecessary material waste and cost increase, and helps to improve the economy of the equipment and reduce manufacturing costs.

[0022] Preferably, the connecting end of the needle tube is sleeved inside the core rod.

[0023] In this solution, the connecting end of the needle tube is sleeved inside the core rod to effectively isolate foreign substances, avoid cross-contamination during blood collection, and reduce possible infection or other health risks; in addition, the sleeve connection design provides a more stable connection and reduces the risk of the connecting mechanism loosening or falling off.

[0024] Preferably, the pressing portion at least partially overlaps with the position of the amplifying mechanism on a side away from the needle of the needle tube.

[0025] In this solution, the blood reflux is observed through the magnifying mechanism, and the operator can perform subsequent blood collection and needle removal operations after ensuring blood reflux. The partially overlapping design does not affect the observation, and can fully utilize the space of the cannula, shorten the length of the kit, and make the structure more compact.

[0026] The positive advances of this invention lie in the placement of the connection end within the kit, located in front of the operating handle. This ensures that the operator's hand does not obstruct the needle's connection when drawing blood with one hand, allowing the operator to clearly observe blood return during the blood drawing process. This significantly improves real-time monitoring and feedback, thereby reducing the risks of blood drawing operations. The incorporation of a magnifying mechanism within the kit further enhances the visual field, enabling the operator to more clearly observe blood return, reducing errors and improving accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] FIG1 is a schematic structural diagram of a needle-stick-proof safety needle according to a preferred embodiment of the present invention (I).

[0028] FIG2 is a schematic structural diagram (II) of a preferred embodiment of the needle-stick-proof safety needle of the present invention.

[0029] FIG3 is a schematic structural diagram of the needlestick prevention safety needle according to a preferred embodiment of the present invention (without the kit).

[0030] FIG4 is a cross-sectional view of a needlestick-proof safety needle according to a preferred embodiment of the present invention.

[0031] FIG5 is a partial enlarged view of the needlestick-proof safety needle according to a preferred embodiment of the present invention.

[0032] Description of reference numerals:

[0033] Needle tube 11; connecting end 111; sleeve 12; operating handle 13; core rod 14; amplifying mechanism 15; connecting mechanism 16; limiting portion 17; pressing portion 18; front side A of the operating handle; rear side B of the operating handle. DETAILED DESCRIPTION

[0034] The present application is further described below by way of examples, but the present application is not limited to the scope of the examples.

[0035] As shown in Figures 1 to 5, this embodiment discloses an anti-needlestick safety needle, which includes: a needle tube 11, a kit 12, an operating handle 13 and a core rod 14 connected to the needle tube 11, wherein the needle tube 11 includes a connecting end 111, the connecting end 111 is the end where the needle tube 11 is connected to the core rod 14, the connecting end 111 is located in the kit 12 and on the front side A of the operating handle, the front side of the operating handle 13 is the side where the needle head of the needle tube 11 is located, and the kit 12 is provided with a magnifying mechanism 15, which is used to magnify the image of the connecting end 111.

[0036] During the blood collection process, when the operator operates with one hand, he or she usually holds the two wings of the operating handle 13 with his or her hand facing downward. Since the wings are made of soft material, they will deform when held to facilitate the operator's grip. If the connecting end 111 of the needle tube 11 is located on the rear side B of the operating handle 13, the operator's hand will block the connecting end 111. The operator needs to adjust the hand posture to observe whether there is blood returning from the connecting end 111 of the needle tube 11, which will lead to untimely observation and increase the operation steps. In this solution, the design of placing the connecting end 111 in the kit 12 and on the front side of the operating handle 13 ensures that the operator's hand will not block the connecting end 111 of the needle tube 11 when the operator draws blood with one hand, allowing the operator to clearly observe the blood returning during the blood collection process, which greatly improves the real-time monitoring and feedback of the operation, thereby reducing the risk of the blood collection operation. In addition, by providing a magnifying mechanism 15 on the kit 12, a magnifying effect of the field of view is further provided, so that the operator can observe the blood returning more clearly, reduce errors and improve the accuracy of the operation.

[0037] In addition, the connecting end 111 of the needle tube 11 is arranged on the front side of the operating handle 13, so that the length of the needle tube 11 can be shortened while ensuring the overall length of the blood collection needle; moreover, the blood return situation can be observed more promptly, which is convenient for subsequent operations and the blood collection efficiency is higher.

[0038] Specifically, the interior of the core rod 14 includes a channel, and the needle tube 11 is installed in the channel; the magnifying mechanism 15 is a convex lens. The convex lens is a relatively simple optical element that is easy to manufacture and maintain. It does not require complex electronic or digital technology, and therefore has the advantages of high reliability and low cost. Moreover, the convex lens provides an immediate magnification effect without waiting for image processing or other technical delays, which facilitates real-time monitoring and immediate feedback of blood return. Of course, in other alternative embodiments, the magnifying mechanism 15 can also adopt digital magnification technology, such as a camera and a liquid crystal display. By magnifying the image of the connecting end 111 of the needle tube 11 and displaying it on the screen, the operator can observe the details of the operation process more clearly.

[0039] Specifically, as shown in Figures 1 to 5, the magnifying mechanism 15 corresponds to the position of the connecting end 111 of the needle tube 11. In the vertical direction, the connecting end 111 of the needle tube 11 is slightly offset toward the front side of the operating handle 13 relative to the magnifying mechanism 15 to facilitate observation by the operator.

[0040] As shown in Figure 1 , the needlestick safety needle includes a connecting mechanism 16, which is used to connect the sleeve 12 and the core rod 14. The amplifying mechanism 15 is located on the side of the connecting mechanism 16 that is closer to the needle tip of the needle tube 11. The positions of the connecting mechanism 16 and the amplifying mechanism 15 are staggered to avoid interference between the two, fully utilize the surface area of ​​the sleeve 12, and make the overall structure more compact.

[0041] Specifically, the sleeve 12 is detachably connected to the core rod 14 via a connecting portion, which is a sliding sleeve. Of course, in alternative embodiments, other detachable connection methods, such as a snap connection, may also be used. After blood collection is completed, the operator presses the sleeve 12, applying force to the rear side of the operating handle 13 to disengage the core rod 14 from the sleeve 12, thereby removing the needle tube 11.

[0042] As shown in Figures 1 and 2, the sleeve 12 is provided with a stopper 17, which is a raised portion on the surface of the sleeve 12. This raised stopper 17 on the sleeve 12 provides additional safety during needle removal. When the operator needs to remove the needle, the raised stopper 17 restrains the operator's hand, preventing accidental movement or slipping, thereby reducing the risk of accidental punctures and other operational risks.

[0043] As shown in Figures 1 and 2, the stopper 17 is located at the end of the sleeve 12 near the needle of the needle tube 11. Positioning the stopper 17 at this end of the sleeve 12 near the needle of the needle tube 11 provides ample space on the surface of the sleeve 12 for hand placement, maximizing the space within the sleeve 12. This makes it easier for the operator to apply force to the sleeve 12 when removing the needle, improving operational convenience. Of course, in alternative embodiments, the stopper 17 can also be positioned elsewhere on the sleeve 12.

[0044] As shown in Figures 1 and 2, the surface of the sleeve 12 includes a pressing portion 18. This pressing portion 18 is located on the side of the stopper 17 away from the needle tip of the needle tube 11 and has an inwardly concave arc shape. This concave arc shape better matches the natural curve of the finger, making it easier for the operator to press the sleeve 12. This better applies force to the sleeve 12, reduces the risk of hand slippage or instability, and improves operational stability.

[0045] As shown in Figures 1 and 2, the connecting mechanism 16, the amplifying mechanism 15, and the limiting portion 17 are sequentially arranged on the kit 12. This sequential arrangement of the connecting mechanism 16, the amplifying mechanism 15, and the limiting portion 17 makes the entire kit 12 more compact, helping to reduce the overall size and making it easier to carry and store. Of course, in other alternative embodiments, the connecting mechanism 16, the amplifying mechanism 15, and the limiting portion 17 can also be arranged in another order.

[0046] As shown in Figures 4 and 5, the connecting end 111 of the needle tube 11 is close to the middle of the core rod 14. The connecting end 111 of the needle tube 11 is close to the middle of the core rod 14 to prevent the needle tube 11 from being inserted too short, ensuring that the needle tube 11 will not be skewed or deviate from the needle seat during assembly; in addition, preventing the needle tube 11 from being inserted too long avoids unnecessary material waste and cost increase, which helps to improve the economy of the equipment and reduce manufacturing costs.

[0047] As shown in Figures 4 and 5 , the connecting end 111 of the needle tube 11 is sheathed within the core rod 14. Sheathing the connecting end 111 of the needle tube 11 within the core rod 14 effectively isolates it from foreign matter, preventing cross-contamination during blood collection and reducing potential infection or other health risks. Furthermore, the sheathed connection design provides a more stable connection, reducing the risk of loosening or detachment of the connecting mechanism 16. Of course, in alternative embodiments, the core rod 14 and the needle tube 11 may also be connected using other methods, such as adhesive bonding.

[0048] As shown in Figures 1-5, the pressing portion 18 at least partially overlaps with the magnifying mechanism 15 on the side away from the needle tip of the needle tube 11. By observing blood reflux through the magnifying mechanism 15, the operator can ensure blood reflux before proceeding with subsequent blood collection and removing the needle tube 11. This partial overlap design not only does not affect observation, but also fully utilizes the space in the cannula, shortens the length of the sleeve 12, and makes the structure more compact.

[0049] Specifically, the pressing portion 18 is formed by an inwardly recessed portion of the sleeve 12 , and the amplifying mechanism 15 is located in the inwardly recessed portion of the sleeve 12 .

[0050] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A needle stick prevention safety needle, which comprises: a needle tube, a kit, an operating handle, and a mandrel communicated with the needle tube. It is characterized in that the needle tube includes a connecting end, the connecting end is the end where the needle tube is connected to the mandrel, the connecting end is located inside the kit and on the front side of the operating handle, the front side of the operating handle is the side where the needle tip of the needle tube is located, and a magnifying mechanism is provided on the kit, and the magnifying mechanism is used to magnify the image of the connecting end.

2. The needle stick prevention safety needle according to claim 1, characterized in that the needle stick prevention safety needle further includes a connecting mechanism for connecting the kit and the mandrel, and the magnifying mechanism is located on the side of the connecting mechanism close to the needle tip of the needle tube.

3. The needle stick prevention safety needle according to claim 1 or 2, characterized in that the magnifying mechanism is a convex lens.

4. The needle stick prevention safety needle according to claim 2, characterized in that a limiting portion is provided on the kit, and the limiting portion is a protrusion on the surface of the kit.

5. The needle stick prevention safety needle according to claim 4, characterized in that the limiting portion is located at one end of the kit close to the needle tip of the needle tube.

6. The needle stick prevention safety needle according to claim 4 or 5, characterized in that the surface of the kit includes a pressing portion, the pressing portion is located on the side of the limiting portion away from the needle tip of the needle tube, and the pressing portion is in an arc shape sunken inward.

7. The needle stick prevention safety needle according to claim 4 or 5, characterized in that the connecting mechanism, the magnifying mechanism, and the limiting portion are sequentially distributed on the kit.

8. The needle stick prevention safety needle according to any one of claims 1-7, characterized in that the connecting end of the needle tube is close to the middle position of the mandrel.

9. The needle stick prevention safety needle according to any one of claims 1-8, characterized in that the connecting end of the needle tube is sleeved inside the mandrel.

10. The needle stick prevention safety needle according to claim 6, characterized in that at least part of the pressing portion coincides with the position of the magnifying mechanism on the side away from the needle tip of the needle tube.

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