TWM473223U - Improved needle protective cover structure of pen-shaped injector - Google Patents

Description

Needle protection cover improved structure of pen type syringe

The present invention relates to an improved structure of a needle-type protective cover for a pen-type syringe, in particular to a needle-type syringe needle that is retracted into the outer cover needle sleeve after the injection of the pen-type syringe needle, thereby facilitating the use of the medical staff and reducing the needle Improve the structure of the needle protection cover of the dangerous pen type syringe.

According to the clinical nursing staff, the needle needle still has a certain proportion due to the pen-type syringe needle (such as pen-type insulin needle), and the pen-type syringe needle is double-layered and the needle is short. When using the operation, the hands are close. The distance between the contact needles is prone to needle sticking. Although there is a pen-type syringe needle-free return sleeve collection box as shown in Fig. 1, it includes the inner cover needle sleeve 11, the needle holder 12 and the outer cover needle sleeve 13, but It is not easy, the nursing staff still uses both hands to remove the needle, which is easy to produce a high risk of needle sticking. In view of this, the applicant has been practicing the engine for many years and has initiated the research engine. After continuous research and experimentation, Yan Mengsheng has improved a pen-type syringe needle protection cover, which is expected to improve the design of the needle-free needle. It can make the medical staff easy to use and reduce the risk of needle sticking.

The main purpose of this creation is to provide a pen-type syringe needle protection cover improved structure, so that the pen-type syringe needle can be retracted into the outer cover needle sleeve after the injection, thereby making the medical staff more convenient to use. And can reduce the risk of needle sticking.

The improved structure of the needle protection cover of the aforementioned pen type syringe includes a cover needle Sleeve, spring and needle protector. Wherein, the outer cover needle sleeve is cylindrical, and a top hole surface is provided with a through hole, and the needle protection sleeve is provided with a cut-off portion, so that the cut-off portion is connected to the through hole of the outer cover needle sleeve, and the outer cover needle is attached to the outer cover needle After the spring is placed, the pen-type syringe needle holder is embedded in the outer cover needle sleeve, and the needle is hidden in the outer cover needle sleeve under normal conditions, and the needle protection sleeve is used to prevent the needle from being exposed to the medical staff. When used, the needle protector is peeled off, so that the needle can be protruded from the through hole of the outer cover needle sleeve for injection, and after the injection, the needle seat is retracted by the elasticity of the spring, and the needle is retracted relatively. It is placed inside the outer cover of the needle cover, which makes it convenient for medical personnel to use and reduces the risk of needle sticking.

The needle guard cover of the pen type syringe has the improved structure, wherein the needle guard is provided with a wing-shaped grip on the top edge of the cut portion to facilitate stripping the needle guard.

11‧‧‧ inner cover sleeve

12‧‧‧ needle seat

13‧‧‧Outer cover

2‧‧‧Outer cover

21‧‧‧through hole

22‧‧‧ Groove

3‧‧‧ Spring

4‧‧‧Needle cover

41‧‧‧Truncate

42‧‧‧ grip

5‧‧‧ needle seat

50‧‧‧ Groove

51‧‧‧ needle

Figure 1 is a perspective exploded view of a conventional pen-type insulin needle.

Figure 2 is a perspective view of the creation.

Figure 3 is a cross-sectional view of the creation.

Figure 4 is a diagram showing the stripping state of the needle protector of this creation.

Figure 5 is a diagram of the state of the injection action of this creation.

Please refer to Figure 2 for a perspective view of this creation. As shown, the creation includes a cover sleeve 2, a spring 3 and a needle guard 4. The outer cover needle sleeve 2 is cylindrical (such as a cylindrical shape in this embodiment), and a through hole 21 is formed on the top edge surface thereof, and a groove 22 is disposed on the inner edge, and the needle protection sleeve 4 is provided with a groove The cut portion 41 is provided with a wing-shaped grip portion 42 at the top edge of the elongated tube 41, and the cut portion 41 is connected to the through hole 21 of the outer cover needle cover 2, After the cover sleeve 2 is placed in the spring 3, the needle holder 5 of the pen-type syringe having the groove 50 on the surface is embedded in the outer cover needle sleeve 2, so that the spring 3 is positioned in the upper and lower grooves 22, 50, Normally, the needle 51 is hidden from the outer cover needle cover 2, so that the needle 51 cannot be extended by the through hole 21 to prevent the needle 51 from being exposed to the medical staff. When in use, the needle guard 4 is peeled off by the cutting portion 41, so that the needle 51 of the needle holder 5 can be extended by the through hole 21 of the outer cover needle sleeve 2 for injection, and after the injection, by the spring 3 The elasticity retracts the needle holder 5, and the needle 51 is relatively retracted into the outer cover needle sleeve 2, thereby facilitating the use of the medical staff and reducing the risk of needle sticking.

Please refer to Figure 3 for a cross-sectional view of this creation. As shown in the figure, when the creation is assembled, after the outer cover needle sleeve 2 is placed into the spring 3, the needle holder 5 of the pen type syringe is embedded in the outer cover needle sleeve 2, because the needle holder 5 and the outer cover needle sleeve 2 is provided with a spring 3, the elastic tension of the spring 3 will hold the needle seat 5 downward, so that the needle 51 is hidden from the outer cover needle sleeve 2, and the needle protection sleeve is used under the normal state before use. The cut portion 41 of the stopper 4 stops at the through hole 21 of the outer cover needle sleeve 2, so that the needle head 51 of the needle hub 5 cannot be protruded from the through hole 21 to prevent the needle head 51 from protruding to the medical staff.

Please refer to Figure 4 for the stripping state diagram of the needle protector of this creation. As shown in the figure, when the present invention is used, the cutting portion 41 of the needle guard 4 is first peeled off from the through hole 21 of the outer cover needle sleeve 2, so that the needle 51 of the needle holder 5 can be covered by the outer cover needle sleeve 2 The through hole 21 is extended for injection. In this embodiment, since the top edge of the cutting portion 41 of the needle guard 4 is provided with a wing-shaped grip portion 42, the medical staff can remove the side by side by holding the grip portion 42. The cut portion 41 is disengaged from the through hole 21, and thus, the needle 51 of the hub 5 can correspond to the through hole 21, so that the needle 51 can be extended by the through hole 21 for injection.

Please refer to Figure 5, which is the state diagram of the injection action of this creation. as the picture shows, In the present invention, when the needle guard 4 is peeled off by the through hole 21 of the outer cover needle cover 2, the needle 51 of the needle holder 5 can be extended by the through hole 21 of the outer cover needle cover 2 for injection, and the needle 51 is in contact with the disease. After suffering from the skin, the spring 3 is contracted and contracted, and the needle 51 is exposed and penetrated into the subcutaneous tissue. After the injection, the needle holder 5 is retracted by the elasticity of the spring 3, and the needle 51 is relatively retracted into the outer cover needle sleeve 2, and the entire outer cover needle sleeve 2 will not protrude the needle 51, thereby The medical staff is convenient to use, avoiding the need for a pen-type syringe needle, and it is necessary to remove the needle by the nursing staff with both hands, which is easy to produce a high risk of needle sticking and can reduce the risk of needle sticking.

The foregoing embodiments are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and the details of the present invention are not deviated from the spirit of the present invention.

In summary, the present invention is provided with a through-hole cover needle sleeve, a spring disposed between the needle seat and the outer cover needle sleeve, and a needle protection sleeve for the sleeve to be placed in the through hole to form a needle of the pen type syringe. The improved structure of the protective cover enables the pen-type syringe needle to be retracted into the outer cover needle sleeve after the injection is completed, thereby making the medical staff more convenient to use and reducing the risk of needle sticking. For a practical design, it is a novelty creation. If you apply for a patent in accordance with the law, you will be punished by the Bureau of Public Information, and you will be granted a patent as soon as possible.

2‧‧‧Outer cover

21‧‧‧through hole

22‧‧‧ Groove

3‧‧‧ Spring

4‧‧‧Needle cover

41‧‧‧Truncate

42‧‧‧ grip

5‧‧‧ needle seat

50‧‧‧ Groove

51‧‧‧ needle

Claims (4)

The improved structure of the needle protection cover of the pen type syringe comprises an outer cover needle sleeve, a spring and a needle protection sleeve, wherein the outer cover needle sleeve is cylindrical, and a top hole surface is provided with a through hole, the needle protection sleeve is The utility model is provided with a cut-off portion, so that the cut-off portion is connected to the through-hole of the outer cover needle sleeve, and after the outer cover needle sleeve is placed into the spring, the needle holder of the pen-type syringe is embedded in the outer cover needle sleeve, so that the normal position is made The needle is hidden in the outer cover needle sleeve, and the needle protection sleeve cannot be extended by the through hole to prevent the needle from being exposed to the medical staff, and when used, the needle protection sleeve is peeled off from the through hole of the outer cover needle sleeve. The needle of the needle seat is extended from the through hole of the outer cover needle sleeve for injection, and after the injection, the needle seat is retracted by the elasticity of the spring, so that the needle is retracted into the outer cover needle sleeve, thereby It makes it easy for medical staff to use and reduces the risk of needle sticking. The improved structure of the needle guard cover of the pen type syringe according to the first aspect of the invention, wherein the outer cover needle sleeve is cylindrical. The improved structure of the needle protection cover of the pen type syringe according to the first aspect of the invention, wherein the needle protection sleeve is provided with a wing-shaped grip portion at the top edge of the cut portion to facilitate stripping the needle protection cover. The improved structure of the needle protection cover of the pen type syringe according to the first aspect of the invention, wherein the inner edge of the outer cover needle sleeve and the surface of the needle seat are respectively provided with grooves for spring positioning.