CN115120815A - Gloves for Insulin Needle Retrievers - Google Patents

Abstract

A hand guard for an insulin needle needle taker, characterized in that: the hand guard is an umbrella-shaped object, one end of the umbrella-shaped object has an inner concave surface, and the radial dimension of the inner concave surface is larger than the needle removal The outer diameter of the needle unloading port of the head of the needle remover is determined, and the hand guard is positioned on the head of the needle remover when in use, wherein the needle unloading port is located at the center of the inner concave surface, and the inner concave surface faces the front of the needle unloading port. A protective shield structure is formed around the needle port. In this scheme, an umbrella-shaped handguard with an inner concave surface is arranged at the front end of the needle remover. In actual use, due to the protection of the umbrella-shaped handguard, even if inserted in the wrong direction, the fingers will not be stabbed, avoiding accidental injury and cross infection, and preventing Risk of accidental injury. It is especially suitable for elderly patients with poor eyesight and trembling hands.

Description

Gloves for Insulin Needle Retrievers

technical field

The invention relates to the field of medical insulin injection instruments, in particular to a handguard for an insulin needle needle taker. The hand guard can effectively protect human hands from injury when using the needle remover to remove the insulin needle, and reduce the risk of cross-infection caused by puncturing the finger by the dismantling needle.

Background technique

Diabetes is a metabolic disease characterized by hyperglycemia. There is no cure for it, but injecting insulin to patients can effectively control the disease.

There are many kinds of insulin injection tools. The common insulin injection tools are composed of insulin needles and insulin injection pens. The insulin injection pen carries a prescribed amount of insulin liquid medicine and can be reused, while the insulin needles are disposable needles. For diabetic patients, insulin needs to be injected frequently in daily life. However, accidental injury to the finger by the needle tip often occurs during frequent loading and unloading of insulin needles. In order to solve the problem of accidentally injuring the finger when disassembling the needle, those skilled in the art have designed a needle extractor for insulin needles, such as "An Insulin Needle Extractor" in Chinese Patent CN209864896U and "A Portable Insulin Pen Needle Retrieving" in Chinese Patent CN114404738A Device" and so on. The use of a needle remover to remove the insulin needle does reduce the probability of the needle tip accidentally hurting the finger, but in practice, the needle tip accidental finger injury error still occurs from time to time. There are two reasons for analyzing the reasons: First, the needle remover is a device that uses special tools to remove insulin needles. Its design mainly considers the design of the disassembly structure and the convenience of use, ignoring its own operation process. Second, when an older user operates, it is easy to accidentally injure a finger due to factors such as poor eyesight and hand tremor.

Therefore, how to improve the existing needle extractor, so as to further reduce the risk of accidentally injuring fingers during use of the needle extractor, and improve the safety is the problem to be solved by the present invention.

SUMMARY OF THE INVENTION

The present invention provides a hand guard for an insulin needle needle extractor, which aims to solve the safety problem in the use of the existing insulin needle needle extractor.

In order to achieve the above-mentioned purpose, the technical scheme adopted in the present invention is: a hand guard for an insulin needle needle taker, the innovation of which is: the hand guard is an umbrella-shaped object, and one end of the umbrella-shaped object has an inner concave surface, The radial dimension of the inner concave surface is larger than the outer diameter of the needle unloading port of the needle extractor head, and the hand guard is positioned on the needle extractor head in the use state, wherein the needle unloading port is located at the center of the inner concave surface. , the inner concave surface faces the front of the needle unloading port, so as to form a protective shield structure around the needle unloading port.

The relevant contents and changes of the above technical solutions are explained as follows:

1. In the above solution, the "front" in the "front" refers to the direction toward the disassembled insulin needle. The "needle extractor head" refers to the position of the front end of the needle extractor.

2. In the above solution, the center of the hand guard is provided with a mounting hole, and the head of the needle remover is provided with an annular mounting surface corresponding to the mounting hole in shape and size. head.

3. In the above solution, the annular mounting surface is a tapered surface with a taper.

4. In the above solution, the annular mounting surface is a cylindrical surface, and the heel portion of the cylindrical surface is provided with a positioning end surface.

5. In the above solution, the hand guard is integrally and fixedly connected to the head of the needle extractor.

6. In the above solution, the radial dimension of the inner concave surface is larger than twice the outer diameter of the needle removal port of the needle extractor head, and smaller than three times the outer diameter of the needle removal port of the needle extractor head.

7. In the above solution, a guide tube is provided at the center of the inner concave surface, the outer diameter of the guide tube is smaller than the radial dimension of the inner concave surface, and the inner diameter of the guide tube is greater than or equal to the diameter of the needle removal port.

8. In the above solution, the port in front of the guide tube is provided with an inner tapered surface that plays a guiding role.

The design principle of the present invention is: in order to solve the safety problem in the use of the existing insulin needle remover, the present invention is provided with an umbrella-shaped hand guard with an inner concave surface at the front end of the needle remover, and the hand guard is positioned in the use state. It is arranged on the head of the needle remover to form a protective shield structure around the needle unloading port. When the insulin needle is inserted into the needle taker, the umbrella-shaped hand guard will not stab the finger even if it is inserted in the wrong direction, avoiding accidental injury and cross infection, and eliminating the risk of accidental injury.

Due to the application of the above-mentioned technical solutions, the present invention has the following advantages and effects compared with the prior art:

1. Although the present invention has a simple structure, the protection effect on fingers is remarkable and outstanding in practical application. Since the protection range of the hand guard is far greater than the deviation of people's pinning operations, users do not need to worry about the influence of factors such as age, poor eyesight, hand tremors, etc., and they all have a good protective effect.

2. In the present invention, the inner concave surface of the umbrella-shaped handguard is used as the striking surface of the pin, instead of using a flat surface or an outer convex surface. This design has two obvious effects: the first is that the pin deviation occurs during use, as long as the needle tip touches The inner concave surface will not slip off when hitting the inner concave surface. The second is that the inner concave surface can use a smaller outer diameter than the flat surface or the outer convex surface to obtain better protection effect.

3. After the guide tube is arranged at the center of the inner concave surface, the present invention can play a double protection role. The first is that when the needle has a small deviation, the guide tube can be quickly moved to the needle unloading port of the needle remover; When the pin has a large deviation, it can be intercepted by the inner concave surface of the umbrella-shaped hand guard. The side guide is better if the inner cone is provided at the port in front of the guide tube.

4. Because the head of the needle taker is designed with an umbrella-shaped inner concave handguard, the invention can realize blind needle insertion and take out under normal needle insertion speed conditions through analysis and verification through experiments.

Description of drawings

Accompanying drawing 1 is the front view of the combination of the hand guard and the needle extractor according to Embodiment 1 of the present invention;

Accompanying drawing 2 is the combined cross-sectional view of the hand guard and the needle taker in Embodiment 1 of the present invention;

Accompanying drawing 3 is the left side view of the combination of the hand guard and the needle taker in Embodiment 1 of the present invention;

Accompanying drawing 4 is the exploded view of the hand guard and the needle taker in Embodiment 1 of the present invention;

5 is an exploded sectional view of the hand guard and the needle taker in Embodiment 1 of the present invention;

6 is a schematic diagram of the initial state of needle taking in Embodiment 1 of the present invention;

7 is a schematic diagram of the state of needle taking and insertion according to Embodiment 1 of the present invention;

8 is a sectional view of the needle taking and insertion state according to Embodiment 1 of the present invention;

9 is a schematic diagram of the state of the first kind of hand guard for needle taking in Embodiment 1 of the present invention;

10 is a schematic diagram of the second hand guard state of needle taking in Embodiment 1 of the present invention;

FIG. 11 is a schematic diagram of the state of needle taking without hand protection in Embodiment 1 of the present invention;

12 is a schematic diagram of the state of the needle taking and unscrewing according to Embodiment 1 of the present invention;

13 is a cross-sectional view of the needle taking and unscrewing state according to Embodiment 1 of the present invention;

FIG. 14 is a schematic diagram of the state of taking out the needle and ejecting the needle according to Embodiment 1 of the present invention;

15 is a cross-sectional view of the needle taking out state in Embodiment 1 of the present invention;

FIG. 16 is a front view of the hand guard in Embodiment 2 of the present invention;

17 is a cross-sectional view of the hand guard in Embodiment 2 of the present invention;

18 is a schematic diagram of the initial state of needle taking in Embodiment 2 of the present invention;

19 is a perspective view of Embodiment 3 of the present invention;

20 is a three-dimensional cross-sectional view of Embodiment 3 of the present invention;

21 is an exploded perspective view of a first perspective view of Embodiment 3 of the present invention;

FIG. 22 is an exploded perspective view of Embodiment 3 of the present invention from a second perspective.

The symbols in the above drawings are explained as follows:

1. Handguard; 2. 2. Inner concave surface; 3. Needle removal device; 4. Unload the needle port; 5. Mounting holes; 7. Ring mounting surface; 8. Positioning the end face; Shell; 9. Take the needle cannula; 10. 11. Hand-held disk; 12. Insulin needles; 13. Insulin injection pen; finger; 14. 14. Guide tube; 16. Inner cone; Elastic claw; 17. Outer bevel.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the present invention is further described:

Example 1: A hand guard for an insulin needle needle taker

As shown in Figures 1-5, the handguard 1 is an umbrella-shaped object (see Figures 4 and 5), and one end of the umbrella-shaped object has an inner concave surface 2 (see Figures 2 and 5), the inner concave surface The radial dimension of 2 is larger than the outer diameter of the needle unloading port 4 of the head of the needle extractor 3 (see Figure 1). In this embodiment, the radial dimension of the inner concave surface 2 is larger than twice the outer diameter of the needle unloading port 4 of the head of the needle extractor 3 , and smaller than three times the outer diameter of the needle unloading port 4 of the head of the needle extractor 3 . In the use state, the hand guard 1 is positioned on the head of the needle remover 3 (see FIG. 2 ), wherein the needle unloading port 4 is located at the center of the inner concave surface 2 , and the inner concave surface 2 faces the front of the needle unloading port 4 . A protective shield structure is formed on the periphery of the needle unloading port 4 .

In this embodiment, the hand guard 1 and the needle taker 3 are designed in separate parts. The center of the hand guard 1 is provided with a mounting hole 5 (see Fig. 5 ), and corresponding to the mounting hole 5, an annular mounting surface 6 (see Fig. 4 ) with matching shape and size is provided on the head of the needle remover 3 . In the state of use, the hand guard 1 is set on the head of the needle remover 3 (see Figure 1 and Figure 2). In order to facilitate installation and positioning, in this embodiment, the annular installation surface 6 is designed as a tapered surface with a taper (see the position indicated by the numeral 6 in FIG. 4 ).

The handguard 1 and the needle extractor 3 of the present invention will be described below in conjunction with the state of use:

1. Initial state of needle removal

FIG. 6 shows a schematic diagram of the initial state of needle taking in Embodiment 1 of the present invention. As can be seen from FIG. 6 , the hand guard 1 is first fitted on the annular mounting surface 6 of the head of the needle remover 3 , so that the hand guard 1 and the needle remover 3 are tightly fitted.

2. Needle insertion state

FIG. 7 and FIG. 8 respectively show a schematic diagram and a cross-sectional view of the state of needle taking and insertion according to Embodiment 1 of the present invention. As can be seen from FIGS. 7 and 8 , the insulin injection pen 12 with the insulin needle 11 is inserted into the needle extractor 3 from the needle removal port 4 .

FIG. 9 shows a schematic diagram of the first hand guard state when the pins are deviated (the hand guard 1 is assembled in the middle of the needle remover 3 ). If the insertion is misaligned, the insulin needle 11 will be inserted into the hand guard 1 , which can protect the fingers 13 well.

Figure 10 shows a schematic diagram of the second hand guard state when the pins are deviated (the hand guard 1 is assembled at the front end of the needle remover 3). If the insertion is misaligned, the tapered inclined surface (inner concave surface) of the hand guard 1 can also guide the needle to be inserted into the hole of the needle remover 3, which plays a guiding role.

Figure 11 shows a schematic diagram of the non-hand guard state when the pins are deviated. Hold the needle remover 3 without the hand guard 1, insert the insulin injection pen 12 with the insulin needle 11 into the needle remover 3, if the insertion is misaligned, not only is it not inserted into the needle removal port 4 of the needle remover 3, Moreover, the insulin needle 11 may accidentally injure the finger 13 .

3. The needle is taken out and unscrewed

Figures 12 and 13 respectively show a schematic diagram and a cross-sectional view of the needle taking and unscrewing state in Embodiment 1 of the present invention. As can be seen from Figure 12 and Figure 13, the needle remover 3 is rotated to unscrew the insulin needle 11 from the insulin injection pen 12, the needle remover 3 is separated from the insulin injection pen 12, and the insulin needle 11 remains in the needle remover 3 inside.

4. The needle is ejected

Fig. 14 and Fig. 15 respectively show a schematic diagram and a cross-sectional view of the state where the needle is taken out and ejected according to Embodiment 1 of the present invention. As can be seen from Figure 14 and Figure 15, the needle removal port 4 with the insulin needle 11 on the needle remover 3 faces away from the human body, press the top of the needle removal cannula 9, and remove the insulin needle 11 from the needle remover 3. The needle port 4 is ejected, and the insulin needle 11 can be discarded.

Example 2: A hand guard for an insulin needle needle taker

As shown in FIGS. 16-18 , the difference between the handguard 1 and Embodiment 1 is that a guide tube 14 is provided at the center of the concave surface 2 of the handguard 1 (see FIGS. 16 and 17 ). The guide tube 14 The outer diameter of the guide tube 14 is smaller than the radial dimension of the inner concave surface 2 , and the inner diameter of the guide tube 14 is greater than or equal to the diameter of the needle removal port 4 . The port at the front of the guide tube 14 is provided with an inner tapered surface 15 for guiding (see Fig. 17). Figure 18 Schematic diagram of the initial state of needle removal in Example 2. It can be seen from Figure 18 that a guide 14 is added to the front end of the hand guard 1. After being assembled to the housing of the needle remover 3, the front end grows out, increasing the identification length of the insertion end, which is easy to operate . The inner diameter of the guide tube 14 is larger than the inner diameter of the outer casing of the needle remover 3 , the action hole for inserting the insulin needle 11 into the needle remover 3 is enlarged, and the deviation degree of allowing the insulin needle 11 to be inserted into the needle remover 3 is greater.

Other content is the same as that of Embodiment 1, and the description is not repeated here.

Example 3: A needle taker for insulin needles with a hand guard

As shown in Figures 19-22, the insulin needle needle remover is composed of a housing 8 and a needle removal cannula 9 (see Figures 21 and 22). The main body of the housing 8 is a sleeve structure (see FIGS. 21 and 22 ), the inner cavity of the sleeve forms a channel, and the front port and the rear port of the channel are both open ports. The housing 8 is provided with a hand-held disc 10 (see Figure 22). The needle-taking cannula 9 is composed of a sleeve-shaped base body, two elastic claws 16 provided on the sleeve-shaped base body, and a hand guard 1 (see FIGS. 19-22 ). The outer side of the elastic claw 16 is provided with an outer slope 17 . The sleeve-shaped base body is an annular body or a sleeve or a disc. The elastic claws 16 are evenly distributed in the circumferential direction of the cross-section of the sleeve-shaped base body, the heels of all elastic claws 16 are connected with the sleeve-shaped base to form an integral structure, and the front end of each elastic claw 16 is connected to the hand guard 1 into an integrated structure. Each elastic claw 16 is separated on the needle-taking cannula 9 by a leakage groove, and the length direction of the leakage groove is consistent with the axial direction of the needle-taking cannula 9 .

The feature of this embodiment is that the hand guard 1 is arranged on the outer edge of the needle-taking cannula 9 (see FIGS. 19-22 ), while the hand guard 1 of Embodiment 1 is arranged on the casing 8 . A guide tube 14 is provided at the center of the inner concave surface of the hand guard 1 (see Figures 19-22), and the port in front of the guide tube 14 is provided with an inner tapered surface 15 (see Figure 20) that plays a guiding role.

The other contents of the handguard 1 are the same as those of the first embodiment, and the description is not repeated here.

For the above-mentioned embodiments, the possible changes of the present invention are described as follows:

1. In the above embodiment 1, the hand guard 1 and the needle taker 3 are designed as separate parts. However, the present invention is not limited to this, and the hand guard 1 can be integrally and fixedly connected to the head of the needle extractor 3 . This is understood and accepted by those skilled in the art.

2. In the above Embodiment 1, the annular mounting surface 6 is designed as a tapered surface with a taper (see the position indicated by the reference numeral 6 in FIG. 4 ). However, the present invention is not limited to this, and the annular mounting surface 6 can also be designed as a cylindrical surface, and the heel portion of the cylindrical surface is provided with a positioning end surface 7 (see FIG. 4 ).

3. In the above embodiment 1, the outline of the outer edge of the hand guard 1 is circular. However, the present invention is not limited to this, and an ellipse, a polygon, or the like may be used. This is understood and accepted by those skilled in the art.

The above-mentioned embodiments are only intended to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those who are familiar with the art to understand the content of the present invention and implement them accordingly, and cannot limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included within the protection scope of the present invention.

Claims (8)

1. The utility model provides an insulin syringe needle takes hand guard dish of ware which characterized in that: the hand guard plate (1) is an umbrella-shaped object, one end of the umbrella-shaped object is provided with an inner concave surface (2), the radial size of the inner concave surface (2) is larger than the outer diameter of a needle unloading opening (4) of the head of the needle taking device (3), the hand guard plate (1) is positioned at the head of the needle taking device (3) in a use state, the needle unloading opening (4) is located at the central position of the inner concave surface (2), and the inner concave surface (2) faces the front of the needle unloading opening (4), so that a protective shield structure is formed on the periphery of the needle unloading opening (4).

2. The handsheet of claim 1, wherein: the center of the hand protection disc (1) is provided with a mounting hole (5), the head of the needle taking device (3) is provided with an annular mounting surface (6) with matched shape and size corresponding to the mounting hole (5), and the hand protection disc (1) is sleeved on the head of the needle taking device (3) in a use state.

3. The handwheel according to claim 2, characterized in that: the annular mounting surface (6) is a conical surface with a taper.

4. The handwheel according to claim 2, characterized in that: the annular mounting surface (6) is a cylindrical surface, and a positioning end surface (7) is arranged at the heel part of the cylindrical surface.

5. The handwheel according to claim 1, characterized in that: the hand guard plate (1) is integrally and fixedly connected to the head of the needle extractor (3).

6. The handwheel according to claim 1, characterized in that: the radial dimension of the inner concave surface (2) is larger than twice the outer diameter of the needle discharging opening (4) at the head part of the needle taking device (3) and is smaller than three times the outer diameter of the needle discharging opening (4) at the head part of the needle taking device (3).

7. The handwheel according to claim 1, characterized in that: the center position of the concave surface (2) is provided with a guide pipe (14), the outer diameter of the guide pipe (14) is smaller than the radial size of the concave surface (2), and the inner diameter of the guide pipe (14) is larger than or equal to the diameter of the needle discharging opening (4).

8. The handwheel according to claim 7, wherein: an inner conical surface (15) for guiding is arranged at the port in front of the guide tube (14).

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