Soft needle assisting device applied to injector

Abstract

The invention discloses a soft needle assisting device applied to an injector, and belongs to the technical field of medical equipment. The soft needle assisting device applied to the injector comprises a needle head storage part and a needle head fixing part. A needle hiding channel is formed in the needle head storage part and is used for hiding medical needle heads; the needle head fixing part is arranged at the lower part of the needle head storage part; wherein the needle head fixing part can fix a medical needle head after the medical needle head is inserted into the needle hiding channel in place. According to the soft needle assisting device applied to the injector, the fear psychology of a patient can be relieved by shielding a medical needle, pressure interference is applied to a to-be-injected area, and the pain sensitivity of the to-be-injected area is reduced through the freezing function.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a soft needle aid used for a syringe. Background Art

[0002] At present, medical syringes are still widely used in major hospitals. The thin and long needle tip structure of the medical syringe needle puts a certain amount of pressure on the patient, which can cause fear. Especially for children, they are often afraid of injections. Fear leads to avoidance, which affects the operation of the needle giver. At the same time, fear will also increase the pain caused by the injection.

[0003] In addition, even if you block or attract the patient's view before the injection, the injection itself still causes some pain.

[0004] Based on the above situation, there is an urgent need for a device that can alleviate patients' fear of medical needles and reduce pain. Summary of the invention

[0005] In order to solve the above technical problems, an embodiment of the present invention proposes a soft needle aid for a syringe, which can alleviate the patient's fear and reduce the pain during injection by shielding the medical needle and cooling the medical needle.

[0006] The embodiment of the present invention discloses a soft needle aid for a syringe, which comprises: a needle storage part and a needle fixing part. The needle storage part is provided with a needle hiding channel for hiding a medical needle; the needle fixing part is arranged at the lower part of the needle storage part; wherein the needle fixing part can fix the medical needle after the medical needle is inserted into the needle hiding channel and is in place.

[0007] In a preferred embodiment of the present invention, the needle storage portion and the needle fixing portion are integrally formed into a bullet-shaped soft shell.

[0008] In a preferred embodiment of the present invention, the needle storage part comprises: a needle storage layer and an external deformation layer; the inner side of the needle storage layer is a needle storage channel, and the shape of the needle storage channel is the same as the shape of the medical needle; the external deformation layer is a transparent or translucent material and is located on the outside of the needle storage layer; wherein the top and bottom of the external deformation layer are connected to the needle storage layer to form an intermediate layer between the external deformation layer and the needle storage layer.

[0009] In a preferred embodiment of the present invention, the external deformation layer is located at the outermost layer of the needle storage portion and has a thickness of 1-3 mm.

[0010] In a preferred embodiment of the present invention, a light access port is provided on the outer deformable layer so as to guide light to the middle interlayer.

[0011] In a preferred embodiment of the present invention, the needle storage layer can transfer energy from the outside to the inside, and an opening is provided on the external deformation layer to allow cold liquid to flow into the middle layer and keep the medical needle in the needle storage channel in a low temperature state.

[0012] In a preferred embodiment of the present invention, the needle storage layer is a multi-layer structure to accelerate the transfer of energy.

[0013] In a preferred embodiment of the present invention, the medical needle includes a needle tip and a needle tail, and the needle hiding channel includes: a needle tip portion and a needle tail portion; the needle tip portion is slender in shape, and its length is longer than the length of the needle tip; the shape of the needle tip portion matches the shape of the needle tail, and is narrower than the needle tail; wherein, after the needle tail is inserted, the needle tail portion squeezes the needle storage layer to expand outward to wrap the medical needle and does not clamp the medical needle.

[0014] In a preferred embodiment of the present invention, the soft needle aid is made of silicone and can maintain its softness at -10°C.

[0015] In a preferred embodiment of the present invention, the needle fixing portion protrudes from the bottom of the needle storage portion to support the medical needle after the medical needle is inserted into the needle storage portion.

[0016] By adopting the above technical solution, the present invention has at least the following beneficial effects:

[0017] The soft needle aid for syringe provided by the present invention comprises a needle storage part and a needle fixing part. The needle storage part is made of soft material and can hide the medical needle while not affecting the insertion of the medical needle into the injection site of the patient during injection. The needle fixing part can fix the medical needle inserted into the needle storage part, so as to provide a firm support to the medical needle during injection so that the injection can be completed.

[0018] The bullet-shaped soft shell has a more beautiful appearance and better streamlined shape, is suitable for hiding needles, and is easy to change shape along the long axis.

[0019] The outer deformable layer of the needle storage part is designed to be transparent or translucent and a light access port is arranged thereon so that after light enters the space between the outer deformable layer and the needle storage layer, the outer deformable layer can be illuminated to attract the patient's attention, and the needle storage layer can block the light to prevent the medical needles inside from being seen.

[0020] The outer deformation layer has a thickness of 1-3 mm, and a certain space is left inside the outer deformation layer to ensure the supporting force and not affect the back-and-forth movement of the medical needle during injection.

[0021] The low-temperature cold liquid flowing into the middle layer between the outer deformation layer and the needle storage layer can keep the medical needle in the needle storage part at a low temperature, thereby reducing the pain during the injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of a soft needle aid for a syringe disclosed in an embodiment of the present invention;

[0024] Figure 2 A cross-sectional view of a soft needle aid for a syringe disclosed in one embodiment of the present invention;

[0025] Figure 3 It is a cross-sectional view along line AA of a soft needle aid for a syringe disclosed in one embodiment of the present invention;

[0026] Figure 4 It is a cross-sectional view along line BB of a soft needle aid for a syringe disclosed in one embodiment of the present invention;

[0027] Figure 5 It is a cross-sectional view along the CC line of a soft needle aid for a syringe disclosed in one embodiment of the present invention;

[0028] Figure 6 The present invention is a three-dimensional schematic diagram of a soft needle aid for a syringe disclosed in an embodiment of the present invention.

[0029] In the figure:

[0030] 1-needle storage part; 11-needle storage channel; 111-needle tip; 112-needle tail; 12-needle storage layer; 13-external deformation layer; 131-light access port;

[0031] 2-Needle fixing part. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0033] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0034] like Figure 1 and Figure 6 As shown, Figure 1 It is a schematic diagram of a soft needle aid for a syringe disclosed in one embodiment of the present invention. Figure 6 The figure is a three-dimensional schematic diagram of a soft needle aid for a syringe disclosed in an embodiment of the present invention. The embodiment of the present invention discloses a soft needle aid for a syringe, comprising a needle storage part 1 and a needle fixing part 2. A needle storage part 1 is provided with a needle hiding channel 11 for hiding a medical needle; the needle fixing part 2 is arranged at the lower part of the needle storage part 1; wherein the needle fixing part 2 can fix the medical needle after the medical needle is inserted into the needle hiding channel 11 and is in place.

[0035] Specifically, the soft needle assist device is a new type of medical injection assisting device. It generally includes a needle storage part 1 for hiding the medical needle and a needle fixing part for fixing the medical needle after the medical needle is inserted. The needle storage part 1 and the needle fixing part 2 are both soft. The hardness of the needle fixing part 2 can be greater than the hardness of the needle storage part 1. Or a step is provided between the needle fixing part 2 and the needle storage part 1 to facilitate the medical needle to be inserted into the needle storage part 1 and then squeeze the needle storage part 1 so as to be fixed through the step between the needle fixing part 2 and the needle storage part 1.

[0036] Preferably, the shape of the needle hiding channel 11 is consistent with the shape of the medical needle, but the size of the needle hiding channel 11 is slightly larger than the size of the medical needle, so that the back and forth movement of the needle is not affected during injection.

[0037] like Figure 1 and Figure 6 As shown, in a preferred embodiment of the present invention, the needle storage part 1 and the needle fixing part 2 are integrally formed into a bullet-shaped soft shell.

[0038] Specifically, the needle storage part 1 and the needle fixing part 2 can be formed in one step by injection molding. Moreover, the needle storage part 1 and the needle fixing part 2 can be formed in a bullet shape, which has a better streamline shape, so that there will be no cuts or other parts of the patient caused by edges and corners, and the needle can be protected well.

[0039] In addition, in addition to the bullet shape, other fluid shapes can also be used, such as a pen tip shape or other conical shapes.

[0040] like Figure 1and Figure 2 As shown, Figure 2 This is a cross-sectional view of a soft needle aid for a syringe disclosed in one embodiment of the present invention. In a preferred embodiment of the present invention, the needle storage part 1 comprises: a needle storage layer 12 and an external deformation layer 13. The inner side of the needle storage layer 12 is a needle storage channel 11, and the shape of the needle storage channel 11 is the same as that of a medical needle; and the external deformation layer 13 is a transparent or translucent material and is located on the outer side of the needle storage layer 12; wherein the top and bottom of the external deformation layer 13 are connected to the needle storage layer 12 to form an intermediate layer between the external deformation layer 13 and the needle storage layer 12.

[0041] Specifically, the needle storage part 1 is the core component of the device, which can be formed by two layers of soft materials, inner and outer. Among them, in the first aspect, the soft material located on the outer side forms an external deformation layer 13. The external deformation layer 13 is a thin layer, which is formed as the layer where the outer wall of the needle storage part 1 is located. Preferably, the outer wall of the external deformation layer 13 can be pasted or painted with some exquisite patterns, cartoon characters, etc. to attract the attention of young patients. Thereby helping to divert the attention of young patients. Since the external deformation layer 13 does not involve the support and fixation of medical needles, in order to save materials, the thickness of the external deformation layer 13 can be less than the thickness of the needle storage layer 12.

[0042] Secondly, the soft material located on the inner side forms the needle storage layer 12. Although the needle storage layer 12 is also soft, its hardness is greater than the external deformation layer 13, so it is preferably designed to be thicker than the external deformation layer 13. In addition, the material of the needle storage layer 12 and the external deformation layer 13 can also be designed to be different materials to achieve that the hardness of the needle storage layer 12 is greater than the external deformation layer 13. The inner side of the inner wall of the needle storage layer 12 is formed as the needle storage channel 11. Therefore, the shape of its inner wall is also the shape of a medical needle.

[0043] In addition, the top and bottom of the outer deformable layer 13 and the needle storage layer 12 are fixed together to form an intermediate layer in the middle. The intermediate layer can provide a deformation space for the deformation of the outer deformable layer 13 and the needle storage layer 12, and can also be used for other purposes, such as achieving a transparent feeling through the use of light as mentioned below, or maintaining the low temperature state of the medical needles hidden in the needle storage channel 11 by introducing cold liquid, etc.

[0044] like Figures 1 to 5 As shown, in a preferred embodiment of the present invention, the external deformation layer 13 is located at the outermost layer of the needle storage part 1 and has a thickness of 1-3 mm.

[0045] Specifically, after long-term experimental tests, the thickness of the external deformation layer 13 is designed to be 1-3 mm, which can be flexibly deformed on the one hand, and can be durable on the other hand. In a preferred embodiment, the thickness of the external deformation layer 13 is 2 mm.

[0046] On this basis, the thickness of the needle storage layer 12 may preferably be 4-8 mm, and its hardness may be sufficient to support the medical needle while not affecting its deformation.

[0047] like Figure 1 , Figure 2 and Figure 6 As shown, in a preferred embodiment of the present invention, a light access port 131 is provided on the outer deformable layer 13 to guide the light to the middle layer.

[0048] Specifically, the light access port 131 can connect the outside and the middle layer. The position of the light access port 131 can be any position on the external deformation layer 13 that can connect the outside and the middle layer. It is preferably located at a relatively upper position of the external deformation layer 13. The shape of the light access port 131 can be various shapes that can play a guiding role. Preferably, a circular through hole can be used. Of course, through holes of other shapes such as square through holes can also be used. The size of the light access port 131 is not specifically limited, and it is convenient to quote light.

[0049] As an alternative, the light access port 131 may not be used, but a light source may be directly arranged in the middle layer and a switch may be arranged on the outer layer of the outer deformable layer 13, so that the light source can be turned on or off by the switch, which also achieves the same or similar technical effect.

[0050] In addition, fluorescent material may be coated on the outer layer of the outer deformable layer 13. Regardless of the method adopted, the light emission plays a role of perception induction, which belongs to visual intervention and can attract the attention of patients, especially younger patients.

[0051] like Figure 1 and Figure 2 As shown, in a preferred embodiment of the present invention, the needle storage layer 12 can transfer energy from the outside to the inside, and an opening is provided on the outer deformation layer 13 to allow cold liquid to flow into the middle interlayer and keep the medical needle in the needle storage channel 11 at a low temperature. The needle storage layer 12 is a multi-layer structure to accelerate the transfer of energy.

[0052] Specifically, in addition to being soft, the material of the needle storage layer 12 can also be made of a material that can transfer heat. For example, a heat-conducting rubber material can be used. In addition, heat transfer can also be achieved by designing some heat transfer structures. For example, the needle storage layer 12 can be designed as a multi-layer mesh structure, so that the medical needle can be cooled by gradually infiltrating cold liquid and kept at a low temperature. Preferably, the needle storage layer 12 adopts a 2-3-layer mesh structure. There will be a certain interval between two adjacent layers. The multi-layer mesh structure does not affect deformation and can play a good supporting role. The mesh holes of the mesh structure can be evenly distributed on each layer, and a uniform method can better transfer heat. In addition, an uneven distribution method can also be used, and the uneven distribution method will play a better role in support. Some other methods are also possible, such as using a method of arranging large and small mesh holes at intervals.

[0053] In addition, the needle storage layer 12 can also be designed as a hollow structure, and a heat-conducting fluid can be injected into the hollow part. The heat-conducting fluid exchanges heat with the cold fluid in the middle interlayer to achieve cooling of the medical needle. In this way, the heat-conducting fluid is injected once and does not need to be replaced multiple times. The structural design requirements of the needle storage layer 12 are low and can be used for a long time, and there is no need to disassemble and frequently replace the heat-conducting fluid. Therefore, it is highly practical. In addition, the medical needle can be cooled by directly introducing a cold fluid into the hollow part of the needle storage layer 12. This method has a better cooling effect, but it requires inserting a catheter into the needle storage layer 12 through the external deformation layer 13 and the middle interlayer to introduce the cold fluid. The structural design is relatively complicated. And it is necessary to design a loop to realize the circulation of the cold fluid.

[0054] Preferably, it can also be used in conjunction with other work platforms. In medical equipment, some work platforms have a storage area for coolant, and the entire soft needle assisting device can be placed in the coolant to maintain the cooling effect of the entire needle assisting device.

[0055] Based on the above methods, the cooling effect of the soft needle aid can be maintained, so that when an injection is given, the part that contacts the skin has a cold effect, thereby reducing the pain caused by the injection.

[0056] like Figures 1 to 5 As shown, Figure 3 It is a cross-sectional view along line AA of a soft needle aid for a syringe disclosed in one embodiment of the present invention. Figure 4 It is a cross-sectional view along line BB of a soft needle aid for a syringe disclosed in one embodiment of the present invention. Figure 5This is a cross-sectional view of a soft needle aid for a syringe disclosed in an embodiment of the present invention along the CC line. In a preferred embodiment of the present invention, the medical needle includes a needle tip and a needle tail, and the needle storage channel 11 includes: a needle tip portion 111 and a needle tail portion 112. The needle tip portion 111 is slender in shape and is longer than the needle tip; and the shape of the needle tail portion 112 matches the shape of the needle tail and is narrower than the needle tail; and the needle tail portion 112 squeezes the needle storage layer 12 to expand outward to cover the medical needle after the needle tail is inserted.

[0057] Specifically, the shape of the needle tip of a medical needle is similar to that of a sewing needle, except that there is a fluid injection channel in the middle of the needle tip of a medical needle to inject the injection solution into the patient's body during the injection. The corresponding needle tip 111 of the needle hiding channel 11 is also in the shape of a sewing needle. Since the specifications of medical needles are subject to industry standards, the length of the needle tip 111 is designed to be slightly longer than the maximum length of the needle in the industry standard, for example, 2 mm longer. This allows the needle hiding channel 11 to be adapted to medical needles of various sizes. Moreover, the shape of the needle tail 112 is also subject to industry standards, so it only needs to be designed to be moderate. The width of the needle tip 111 is slightly larger than the width of the needle, so as not to affect the insertion of the needle tip. The width of the needle tail 112 is slightly smaller than the size of the needle tail, so that the needle tail can be wrapped by squeezing. As a preferred embodiment, the internal structure of the needle storage part 1 and the needle fixing part 2 of the soft needle aid can refer to the following. Figures 3 to 5 sectional view of .

[0058] like Figure 1 and Figure 2 As shown, in a preferred embodiment of the present invention, the soft needle aid is made of silicone and can maintain its softness at -10°C.

[0059] Specifically, the silicone material enables the soft needle aid to be immersed in liquid at -10°C without causing the material to deteriorate and affecting the injection effect.

[0060] like Figure 1 and Figure 2 As shown, in a preferred embodiment of the present invention, the needle fixing part 2 protrudes from the bottom of the needle storage part 1 to support the medical needle after the medical needle is inserted into the needle storage part 1.

[0061] Specifically, after the medical needle is inserted into the needle storage part 1, since the needle fixing part 2 protrudes from the bottom of the needle storage part 1, the tail of the medical needle is supported by the needle fixing part 2, thereby fastening the medical needle.

[0062] like Figure 2As shown, in a preferred embodiment, the needle storage part 1 of the soft needle assisting device only includes a needle storage layer 12 without an external deformation layer 13. The needle storage layer 12 is designed to be made of a transparent or translucent soft material, just like the external deformation layer 13. A needle storage channel 11 is provided inside it. The needle storage layer 12 is also provided with a light access port 131, which can guide light to the needle storage channel 11, thereby illuminating the entire needle storage part 1. The other features of the needle storage layer 12 are similar to those described above and will not be repeated here. When in use, the entire soft needle assisting device can be immersed in a coolant to maintain a low temperature state. Although this setting cannot completely hide the needle, its bright design can attract the attention of patients, especially younger patients. Keeping the entire soft needle assisting device in a low temperature state can still reduce the pain during injection.

[0063] In a preferred method of use, in the preparation stage for injection for a patient, the corresponding medical needle is first inserted into the needle storage part 1. Then it is cooled and stored, for example, the entire soft needle aid is placed in the coolant of the corresponding medical platform. The placement time is more than half an hour. When an injection is required, the soft needle aid is taken out and inserted into the syringe to give the patient an injection.

[0064] The soft needle aid for syringe provided by the present invention comprises a needle storage part 1 and a needle fixing part 2. The needle storage part 1 is made of a soft material and can hide the medical needle while not affecting the insertion of the medical needle into the injection site of the patient during injection. The inside of the needle fixing part 2 can support the medical needle inserted into the needle storage part, thereby preventing the medical needle from moving downward during injection, so that when the needle storage part 1 located outside the needle is deformed, the needle does not move therewith, thereby not affecting the direction of the needle to complete the injection.

[0065] The bullet-shaped soft shell has a more beautiful appearance and better streamlined shape, is suitable for hiding needles, and is easy to change shape along the long axis. Moreover, the appearance of the bullet shell is very different from the shape of the needle, and the visual deception is better. It will give the patient the feeling that they are not getting an injection.

[0066] The outer deformable layer 13 of the needle storage part 1 is designed to be transparent or translucent and a light access port 131 is arranged thereon so that after light enters the intermediate interlayer space between the outer deformable layer 13 and the needle storage layer 12, the outer deformable layer 13 can be illuminated to attract the attention of patients, especially younger patients. At the same time, the needle storage layer 12 can block the light to prevent the medical needles inside from being seen.

[0067] The thickness of the outer deformation layer 13 is 1-3 mm, and a certain space is left inside the outer deformation layer 13 to ensure its supporting force and not to affect the back-and-forth movement of the medical needle during injection.

[0068] The low-temperature cold liquid flowing into the middle layer between the outer deformation layer 13 and the needle storage layer 12 can keep the medical needle in the needle storage part at a low temperature, thereby reducing the pain during injection. At the same time, immersing the entire soft needle aid in the coolant can also play a good role in keeping the temperature low. The multi-layer structure of the needle storage layer 12 can also achieve a better heat transfer effect.

[0069] It should be particularly pointed out that the various components or steps in the above-mentioned embodiments can be cross-linked, replaced, added, or deleted with each other. Therefore, the combinations formed by these reasonable arrangements and combinations should also fall within the scope of protection of the present invention, and the scope of protection of the present invention should not be limited to the embodiments.

[0070] The above are exemplary embodiments disclosed in the present invention. The order disclosed in the above embodiments of the present invention is only for description and does not represent the advantages and disadvantages of the embodiments. However, it should be noted that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope (including claims) disclosed in the embodiments of the present invention is limited to these examples. Various changes and modifications may be made without departing from the scope defined in the claims. The functions, steps and / or actions of the method claims according to the disclosed embodiments described herein do not need to be performed in any particular order. In addition, although the elements disclosed in the embodiments of the present invention may be described or required in individual form, they may also be understood as multiple unless explicitly limited to the singular.

[0071] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the embodiments of the present invention as described above, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A soft needle aid for a syringe, characterized in that: include: A needle storage part, wherein a needle storage part is provided with a needle hiding channel for hiding medical needles; and; A needle fixing portion, the needle fixing portion being arranged at the lower portion of the needle storage portion; Wherein, the needle fixing part can fix the medical needle after the medical needle is inserted into the needle hiding channel and is in place.

2. The soft needle aid for syringes according to claim 1, characterized in that: The needle storage part and the needle fixing part are integrally formed into a bullet-shaped soft shell.

3. The soft needle aid for syringes according to claim 2, characterized in that: The needle storage unit comprises: A needle storage layer, the inner side of which is a needle storage channel, and the shape of the needle storage channel is the same as that of the medical needle; and An external deformation layer, which is made of a transparent or translucent material and is located outside the needle storage layer; The top and bottom of the external deformation layer are connected to the needle storage layer to form an intermediate layer between the external deformation layer and the needle storage layer.

4. The soft needle aid for syringes according to claim 3, characterized in that: The outer deformation layer is located at the outermost layer of the needle storage part and has a thickness of 1-3 mm.

5. The soft needle aid for syringes according to claim 4, characterized in that: The outer deformable layer is provided with a light access port to guide the light to the middle interlayer.

6. The soft needle aid for syringes according to claim 4, characterized in that: The needle storage layer can transfer energy from the outside to the inside, and the external deformation layer is provided with an opening to allow cold liquid to flow into the middle interlayer and keep the medical needle in the needle storage channel in a low temperature state.

7. The soft needle aid for syringes according to claim 6, characterized in that: The needle storage layer is a multi-layer structure to accelerate the transfer of energy.

8. The soft needle aid for syringes according to claim 3, characterized in that: The medical needle includes a needle tip and a needle tail, and the needle hiding channel includes: a needle tip portion, the needle tip portion being in an elongated shape and having a length longer than the needle tip; and A needle tail portion, wherein the shape of the needle tip portion matches the shape of the needle tail and is narrower than the needle tail; Wherein, after the needle tail is inserted, the needle tail portion squeezes the needle storage layer to expand outward to wrap the medical needle without clamping the medical needle.

9. The soft needle aid for syringes according to any one of claims 1 to 7, characterized in that: The soft needle aid is made of silicone and can maintain its softness at -10°C.

10. The soft needle aid for syringes according to claim 1, characterized in that: The needle fixing portion protrudes from the bottom of the needle storage portion to hold the medical needle after the medical needle is inserted into the needle storage portion.

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