TWI811226B - Protectors for injection needles - Google Patents

Abstract

The protective cover part (13) of the protective device (1) is installed on the mounting part (10) through the hinge part (11). When the hinge part (11) is in the first posture, the protective cover part (13) is in the first position. In the separated position, when the hinge part (11) is in the second posture, it is in the inclined position. The flexible part is a flexible part that, when the protective cover part (13) in the inclined position is pressed to the protective position side, elastically deforms to rotate the protective cover part (13) from the inclined position to protect the entire injection needle (21). Protect position.

Description

Injection needle protector

The present invention relates to an injection needle protector for protecting the injection needle of a used syringe.

Conventionally, as a protective device for injection needles, one described in Japanese Patent Publication No. 2014-520590 has been known. This protector is attached to a disposable syringe and is used to protect the person who injects the needle after use. The protector is made of elastic synthetic resin and is integrally equipped with a mounting part, a hinge structure, a protective cover, etc.

The mounting part is fixed to the base of the injection needle. The protective cover is used to cover the injection needle and is connected to the mounting part through a hinge structure. With this hinge structure, the protective cap part is configured to be rotatable between an open position for opening the injection needle while being along the syringe barrel, and a protective position for covering the entire injection needle, and when moving from the open position toward the protective position When rotating sideways, it is pushed to the protective position side by the hinge structure. When the protective cover is installed on a syringe, it is used in an open position before use and in a protective position after use.

In addition, the protective cover is equipped with a one-way brake rod. After the injection needle is used, when the protective cover is rotated from the open position to the protective position, the injection needle passes through The one-way brake rod is buckled in the anti-loosening state. Thereby, the protective cap part is held in the protective position, and the injection needle is held in a state in which the whole body is covered by the protective cap part.

With the above-mentioned conventional injection needle protector, if the protector is installed on the syringe, the protective cover is maintained in the open position when the syringe is not in use. In this state, if an unexpected load or impact force acts on the protective cover, the protective cover may be rotated from the open position to the protective position while being pushed to the protective position side by the hinge structure. At this time, the injection needle is locked in a slip-off prevention state by the one-way brake rod, and the protective cover is held in the protective position. Therefore, the syringe cannot be used regardless of whether the syringe is unused. As a result, unused syringes have to be discarded, resulting in increased running costs.

Therefore, an object to be solved by the present invention is to provide an injection needle protector that can suppress the disposal of unused syringes and reduce running costs.

In order to solve the above-mentioned problems, the injection needle protector of the first invention is characterized by having: a mounting part that is mounted on a predetermined position of the syringe or the injection needle; and a protective cap part that is configured to be able to be attached to the injection needle. A separated separation position, an inclined position that is closer to the injection needle than the separation position and is inclined at a predetermined angle relative to the injection needle, and covering at least the tip of the injection needle. The hinge part is configured to be provided between the protective cover part and the mounting part, and allows the protective cover part to rotate between the separated position and the inclined position; and the flexible part, which It is configured to be provided between the protective cover part and the mounting part and has flexibility. When the protective cover part in the inclined position is pressed to the protective position side, the protective cover part is rotated from the inclined position by elastic deformation. to the protective position.

According to the injection needle protector of the first invention, the mounting portion is attached to a predetermined position of the syringe or the injection needle, and the protective cover portion is configured to be movable between the separated position, the tilted position, and the protective position. In addition, the hinge portion provided between the protective cover portion and the mounting portion is configured to rotate the protective cover portion between the separated position and the inclined position. When the protective cover portion located in the inclined position is pressed to the protective position side, the hinge portion can be rotated. The flexible portion is configured to allow the protective cover portion to rotate from the inclined position to the protective position side by elastic deformation.

Based on the above, if the protector is installed on an unused syringe, with the protective cap part in the separated position, even if some force is temporarily applied and the protective cap part is pressed to the tilt position side, the hinge part will only The protective cover part is rotated to the inclined position, so that the protective cover part is in the inclined position as long as it is not further pushed from the inclined position to the protective position side. As a result, unlike the protector of Japanese Patent Application Publication No. 2014-520590, it is possible to suppress unused syringes from becoming unusable and to suppress discarding of unused syringes. This can reduce operating costs. In addition, the protective cover located in the inclined position will not cause interference when performing puncture or when performing injection after puncture, so there is no need to return it from the inclined position to the separated position. action, whereby the syringe can be operated during use Improved efficiency can improve product quality.

The injection needle protector of the second invention is the injection needle protector of the first invention, and preferably further includes: a connecting portion connecting the protective cap portion and the hinge portion, and the flexible portion is formed by It is composed of a cutout portion where a part of the connecting portion is notched.

According to the injection needle protector of the second invention, the flexible portion is formed by a notch portion in which a part of the connecting portion is notched. Therefore, the flexible portion can be easily formed at low cost.

In the injection needle protector of the third invention, in the injection needle protector of the second invention, it is preferable that the cutout portion is configured to have two edge portions extending linearly while being separated from each other at a predetermined angle, 2 The two edge portions abut each other when the protective cover portion moves from the tilted position to the protective position.

According to the injection needle protector of the third invention, since the cutout portion is configured to have two edge portions extending linearly while being separated from each other at a predetermined angle, the two edge portions are used when the protective cover portion moves from the tilted position to the protective position. Therefore, when the injection needle is covered with the protective cover, the protective cover can be prevented from rotating beyond the protective position.

In the injection needle protector of the fourth invention, in the injection needle protector of the first invention, it is preferable that the hinge portion is configured to be able to move the protective cap portion in the first posture in which the protective cap portion is in the separated position. It rotates between the second posture in the inclined position, and is provided with: a first hinge element and a second hinge element. The first hinge element has: a curved end portion with flexibility; The curved end portion extends and is respectively connected to two extension portions at both ends of the second hinge element. The second hinge element is configured to be elastically deformable. shape, the hinge portion is configured such that when the second hinge element is rotated between the first posture and the second posture, the second hinge element is elastically deformed, and one side of the bent end of the first hinge element is elastically deformed in such a way that the bending direction becomes the opposite direction. , while moving across the straight line connecting the two extension parts and the connecting part of the second hinge element.

According to the injection needle protector of the fourth invention, the hinge portion is configured such that when the second hinge element is rotated between the first posture and the second posture, the second hinge element is elastically deformed, and one side of the bent end of the first hinge element is It is elastically deformed so that the bending direction becomes the opposite direction, and moves across the straight line connecting the two extension parts and the connection part of the second hinge element. Thereby, when the hinge part rotates between the first position and the second position, as long as no external force is applied, the position after rotation will not return to the position before rotation, so the protective cover part can be Keep the side in the separated position and the tilted position. For the same reason, when the protective cover is pressed, when the curved end moves across the straight line connecting the two ends, a feeling of sudden decrease in resistance or a tapping feeling can be provided.

1: Protective gear

10:Installation Department

10a: Semi-cylindrical part

10b: round hole

10c:Protrusion

10d: annular groove

11: Hub Department

11a: 1st base part

11b: 2nd base

11X: 1st hub component

11Xa, 11Xb: Extension Department

11Xc: Curved end

11Y: 2nd hinge component

11Ya, 11Yb: Board wall part

12:Connection part

12a: Incision groove

12b:Thin-walled part

13: Protective cover

13a:Tianbi Department

13b: Side wall part

13c: convex strip

13d: buckle protrusion

13e: Front end wall

20: syringe

21:Injection needle

21a:Needle

21b: base

21c: annular protrusion

22:Syringe barrel

22a: Front end

23:Putter

30:Needle cover

L: straight line

P1, P2: connection center point

FIG. 1 is a front view showing the structure of an injection needle protector and a syringe equipped with the protector according to one embodiment of the present invention.

FIG. 2 is a diagram showing a state in which the needle cover is removed from the syringe of FIG. 1 .

FIG. 3 is a diagram showing the structure near the base of the injection needle.

Figure 4 is a front view of the protective gear.

Figure 5 is a bottom view of the protective gear.

Figure 6 is a side view of the protective gear.

FIG. 7 is a diagram showing a state in which the hinge portion of the protector is in a first posture.

FIG. 8 is a diagram showing a state in which the hinge portion of the protector is in a second posture.

Fig. 9 is a diagram showing a state in which the protective cap portion attached to the syringe is in an inclined position.

Fig. 10 is a diagram showing a state in which the protective cap portion attached to the syringe is in the protective position.

FIG. 11 is a cross-sectional view along line A-A in FIG. 10 .

Fig. 12 is a perspective view of a state in which the injection needle is covered with the protective cap portion in the protective position, viewed from the bottom side.

Hereinafter, an injection needle protector according to an embodiment of the present invention will be described with reference to the drawings. The protector of this embodiment protects the injection needle to ensure safety after the syringe is used.

As shown in FIG. 1 , the protector 1 of this embodiment is attached to a syringe 20 before use. The syringe 20 is equipped with an injection needle 21 , a syringe barrel 22 , and a push rod 23 as shown in FIG. 2 .

The injection needle 21 is composed of a metal needle tube 21a and a synthetic resin base portion 21b (predetermined portion). The base portion 21b is hollow, and the needle tube 21a is attached to its front end. The portion of the base portion 21b opposite to the needle tube 21a is formed into a cylindrical portion, and the front end portion 22a of the syringe barrel 22 is pressed into the inner hole of the cylindrical portion. Thereby, the injection needle 21 is mounted on the syringe barrel 22 .

In addition, as shown in FIG. 3 , an annular protrusion 21 c is provided at the end of the base 21 b on the syringe 22 side, and the annular protrusion 21 c extends throughout the outer periphery of the base 21 b. Formed by the entire circumference of the surface. The inner circumferential surface of the mounting portion 10 of the protector 1, which will be described later, is in contact with the base portion 21b and the outer circumferential surface of the front end portion 22a of the syringe barrel 22, and the annular protrusion 21c is fitted into the annular groove 10d of the mounting portion 10, which will be described later. state, is installed on the base 21b.

In addition, as shown in FIG. 1 , in the case of the syringe 20 before use, the needle cover 30 is attached to the injection needle 21 . The needle cover 30 is used to ensure the safety of the syringe 20 before use and when preparing for use. When the syringe 20 is to be used, the needle cover 30 is removed from the injection needle 21 by the user.

On the other hand, as mentioned above, the protector 1 is used to ensure the safety of the syringe 20 after use, and is made of synthetic resin (for example, polypropylene). As shown in FIGS. 4 to 6 , the protective device 1 includes a mounting portion 10 , a hinge portion 11 , a connecting portion 12 , and a protective cover portion 13 , and these components 10 to 13 are integrally formed.

The mounting part 10 is provided with a pair of semi-cylindrical parts 10a, 10a, and the semi-cylindrical parts 10a, 10a are formed in the shape which bisects a cylinder. The adjacent front end portions of the semi-cylindrical portions 10a and 10a are connected through a thin-walled hinge portion, and are configured to be relatively rotatable with the hinge portion as the center.

One of the semi-cylindrical portions 10a has a pair of circular holes 10b, 10b formed on the front end surface on the opposite side to the hub portion, and the other semi-cylindrical portion 10a has a pair of circular holes 10b on the front end surface on the opposite side to the hub portion. A pair of protrusions 10c, 10c are provided at positions corresponding to the circular holes 10b, 10b (see FIG. 5). Each of these protrusions 10c, 10c is formed in a cylindrical shape with a slightly larger diameter than each of the circular holes 10b, 10b. In addition, anti-slip protrusions are provided on the outer peripheral surface of the semi-cylindrical portion 10a over the entire circumference.

In addition, an annular groove 10d with a rectangular cross-section is formed at the center portion in the axial direction of the inner surface of the semi-cylindrical portion 10a, and the cross-section of the annular groove 10d is set so that the annular protrusion 21c of the base portion 21b can fit. size. With the above configuration, the mounting portion 10 presses the protrusions 10c, 10c into the circular holes 10b and 10b, whereby it is mounted on the base 21b.

On the other hand, the hinge part 11 and the connecting part 12 are provided between one end of the axial direction of the mounting part 10 and one end of the protective cover part 13. Through the hinge part 11 and the connecting part 12, the mounting part 10 and the protective cover part 13 lines are connected to each other.

This hinge part 11 rotates between the first position shown in FIG. 7 and the second position shown in FIG. 8 when an external force acts on the protective cover part 13 and the like. The hinge part 11 includes a first base part 11a, a pair of first hinge elements 11X, 11X, a second hinge element 11Y, and a second base 11b, and these elements are integrally formed with each other. However, in the following description of the hinge part 11, the left-right direction in FIG. 6 is called "lateral direction".

The first base portion 11 a is formed in a plate wall shape and extends from one end of the mounting portion 10 to the protective cover portion 13 side. As shown in FIG. 6 , the first base portion 11 a is configured such that the lateral width of the portion on the protective cover portion 13 side is wider than that of the mounting portion 10 side, and is formed to have the same width as the second base portion 11 b . In addition, the second base 11b is also formed in a plate wall shape and extends from the connecting portion 12 side to the mounting portion 10 side.

The pair of first hinge elements 11X, 11X are arranged at a predetermined interval in the transverse direction, and the transverse outer end surfaces are arranged on the same plane as the first base portion 11a and the second base portion 11b. Each of the first hinge elements 11X and 11X is connected in a horizontal direction It has a predetermined width and extends between the lateral end of the first base portion 11a and the lateral end of the second base 11b.

Each first hinge element 11X is provided with two extension parts 11Xa and 11Xb, and a curved end part 11Xc. The extension part 11Xa extends between the first base part 11a and the curved end part 11Xc, and the extension part 11Xb The tie extends between the first base portion 11b and the curved end portion 11Xc.

The curved end portion 11Xc is thinner and flexible than the two extended portions 11Xa and 11Xb, and is connected to the two extended portions 11Xa and 11Xb in a bending deformation state.

In addition, as shown in FIG. 6 , the second hinge element 11Y is arranged between the pair of first hinge elements 11X and 11X, and is configured to be elastically deformable. The second hinge element 11Y is provided with two plate wall portions 11Ya and 11Yb. The two plate wall portions 11Ya and 11Yb are integrally formed and have a "U"-shaped front view shape. One end of the plate wall part 11Ya is connected to the front end part of the first base part 11a, and one end part of the plate wall part 11Yb is connected to the front end part of the second base part 11b.

Next, the operation when the hinge part 11 configured as above rotates between the first posture shown in FIG. 7 and the second posture shown in FIG. 8 will be described. For example, if the hinge portion 11 is in the first posture shown in FIG. 7 , the curved end portion 11Xc of the first hinge element 11X is connected to the two center points P1 and P2 ( The straight line L connecting the connecting portions) is between them, and is located on the opposite side to the second hinge element 11Y.

In the state of the first posture, if the protective cover 13 and the like are pressed in the direction of arrow Y1 in FIG. 7 due to external force, the first hinge element 11X is bent. The bending direction of the curved end portion 11Xc changes to the opposite direction and moves toward the second hinge element 11Y side. Along with this, the second hinge element 11Y elastically deforms so that the angle between the two wall portions 11Ya and 11Yb becomes larger. Due to this, the elastic force to push back the first hinge element 11X acts on the first hinge element 11X. Hub element 11X.

When the curved end portion 11Xc crosses the straight line L connecting the two connecting center points P1 and P2 while resisting the elastic force, the curved end portion 11Xc is then restored to its original shape by the second elastic deformation state. The elastic force of the hinge element 11Y moves while bending and deforming into the state shown in FIG. 8 . Along with this, the second hinge element 11Y rotates clockwise in the figure with the connection center point P1 as the center.

Next, if the second hinge member 11Y is rotated to the state shown in FIG. 8 , the two thick extension portions 11Xa and 11Xb are in contact with each other, whereby the movement of the first hinge member 11X and the second The rotation of the hinge element 11Y is completed, and the rotation of the hinge part 11 from the first position to the second position shown in FIG. 8 is completed. When the hinge part 11 is in the second posture, as long as no external force is applied to the protective cover part 13 or the like, the first hinge element 11X is maintained in the state shown in FIG. 8 .

On the other hand, if the hinge part 11 is in the second posture shown in FIG. 8 and the protective cover part 13 is pressed in the direction of arrow Y2 in FIG. 8 due to external force, the bent end part 11Xc is opposite to the above and resists with one side. The elastic force of the second hinge element 11Y moves away from the second hinge element 11Y. Next, after crossing the straight line L connecting the two connecting center points P1 and P2, the curve is bent due to the elastic force of the second hinge element 11Y trying to return to its original shape from the elastic deformation state. The end portion 11Xc moves to the position shown in Fig. 7 while being bent and deformed. Along with this, the second hinge element 11Y rotates counterclockwise in the figure with the connection center point P1 as the center.

Through the above, the rotation from the second posture of the hinge part 11 to the first posture is completed. In this state, the angle between the plate wall portions 11Ya and 11Yb of the second hinge element 11Y is restored to its original state. As long as no external force is applied to the protective cover 13 and the like, the first hinge element 11X is maintained as shown in FIG. 7 state. As shown above, the hinge part 11 rotates between the first posture shown in FIG. 7 and the second posture shown in FIG. 8 .

In addition, the connecting part 12 extends in a plate wall shape between the hinge part 11 and the protective cover part 13, and has a notch groove part 12a formed at a predetermined position. The notched groove portion 12a forms a front-view shape in which the surface of the connecting portion 12 on the first hinge element 11X side is notched into a "V" shape, and the angle between the two edges is set to a predetermined value. In this embodiment, the notch groove portion 12a corresponds to the flexible portion and the notch portion.

In addition, the bottom of the notch groove portion 12a of the connecting portion 12 is formed into a thin portion 12b that is thinner than other portions. With the above configuration, when the hinge part 11 is in the second posture shown in FIG. 8 and the protective cover part 13 is pushed in the direction of arrow Y3 in the figure due to external force, the thin-walled part of the connecting part 12 12b is elastically deformed, whereby both edges of the notch groove portion 12a move close to each other, and along with this, the protective cover portion 13 rotates clockwise with the thin portion 12b as the center.

On the other hand, the protective cover 13 is located in the open position shown in FIGS. 1 and 2 when the hinge part 11 is in the first posture shown in FIG. 7. When the hinge part 11 is in the first posture shown in FIG. When the portion 11 is in the second posture shown in Figure 8, it is located in the inclined position shown in Figure 9. In addition, in the state of being in the inclined position shown in FIG. 9 , the protective cover part 13 is maintained in a state of being inclined at a predetermined angle with respect to the injection needle 21 , and when it is pushed to the injection needle 21 side from this state, While elastically deforming the connecting portion 12, it rotates to the protection position shown in Fig. 10 and covers the entire injection needle 21.

As shown in FIG. 6 , the protective cover part 13 is provided with a ceiling wall part 13 a and a pair of side wall parts 13 b and 13 b extending continuously at both ends of the ceiling wall part. The ceiling wall part 13 a has a tapered tip in plan view. Elongated shape (see Figure 5). In addition, the pair of side wall portions 13b, 13b are configured to extend while facing each other, and the distance between them becomes narrower toward the front end portion.

As shown in FIG. 12, two sets of convex strips 13c, 13c are provided on the inner side of the protective cover 13, with a pair of convex strips 13c, 13c forming a set. The two sets of convex strips 13c, 13c are used to protect the The cover portions 13 are arranged apart from each other in the longitudinal direction. Each of the ridges 13c and 13c is formed in a plate shape.

One set of convex ribs 13c, 13c is continuous and extends orthogonally to the ceiling wall portion 13a and the side wall portions 13b, 13b, and a gap of a predetermined width is formed between the inner front ends of the two. When the protective cover 13 is rotated from the inclined position to the protective position, the injection needle 21 fits in the gap between the ridges 13c and 13c, whereby the injection needle 21 is clamped by the ridges 13c and 13c (see Figure 12) .

」字狀。當保護蓋部13由傾斜位置旋動至 保護位置時，注射針21一邊使扣止突起13d在圖11的上側作彈性變形，一邊越過此而移動，藉此，注射針21係在止脫狀態下被扣止在扣止突起13d(參照圖12)。 In addition, two locking protrusions 13d and 13d are provided on one side wall portion 13b, and the locking protrusions 13d and 13d are arranged to be spaced apart from each other in the longitudinal direction of the protective cover portion 13. Each retaining protrusion 13d is flexible, and is formed into a cross-section as shown in Figure 11.

” character shape. When the protective cover 13 is rotated from the inclined position to the protective position, the injection needle 21 elastically deforms the locking protrusion 13d on the upper side in FIG. The lower part is locked by the locking protrusion 13d (see Figure 12).

On the other hand, a front wall portion 13e extends between the front ends of the side wall portions 13b and 13b. When the protective cap portion 13 covers the entire injection needle 21, the front wall portion 13e covers the injection needle. The state of the front end of 21 (see Figure 12).

As shown above, the protector 1 of this embodiment is attached to the unused syringe 20 through the attachment part 10 , and the protective cover part 13 is connected to the attachment part 10 through the hinge part 11 and the connection part 12 . The hinge part 11 is configured to be rotatable between the first posture shown in FIG. 7 and the second posture shown in FIG. Rotate between the separated position shown and the tilted position shown in Figure 9.

Therefore, when the protector 1 is attached to the unused syringe 20 and the protective cover 13 is in the separated position, even if some force temporarily acts on the protective cover 13, the protective cover 13 is pressed to the inclined position side. At this time, the hinge part 11 only rotates until the protective cover part 13 is in the second posture of the inclined position. Thereby, the protective cover part 13 only rotates to the inclined position, and is located in this inclined position. As a result, unlike the protector of Japanese Patent Application Publication No. 2014-520590, it is possible to suppress the unused syringe 20 from becoming unusable and reduce the disposal of the unused syringe 20, thereby reducing running costs.

In addition, when the protective cover 13 is in the tilted position, the injection needle 21 is not covered by the protective cover 13 , so the injection needle 21 is not covered when the puncture is performed or when the puncture is performed. When injection is performed later, the protective cover 13 will not interfere. This eliminates the need for an operation of returning the protective cover 13 from the tilted position to the separated position, thereby improving work efficiency during use of the syringe 20 and improving marketability.

In addition, when the hinge portion 11 rotates between the first posture and the second posture, the second hinge element 11Y elastically deforms, and the bent end portion 11Xc of the first hinge element 11X moves in such a way that the bending direction becomes the opposite direction. It moves across the straight line L connecting the two connection center points P1 and P2 of the first hinge element 11X and the second hinge element 11Y while elastically deforming. Thereby, when the hinge part 11 rotates between the first posture and the second posture, as long as no external force is applied, the position after rotation will not return to the position before rotation, so the protection can be achieved. The cover 13 is held in one of the separated position and the tilted position. For the same reason, when the protective cover part 13 is pressed and the curved end part 11Xc moves across the straight line L connecting the two ends, a feeling of sudden decrease in resistance or a light click feeling can be provided.

In addition, the connecting portion 12 is formed with a notch groove portion 12a. When the hinge portion 11 is in the second posture shown in FIG. 8, if the protective cover portion 13 is pressed against the injection needle 21 side, the bottom of the notch groove portion 12a is The thin-walled portion 12b is elastically deformed, thereby moving so that both edges of the notch groove portion 12a approach each other. Along with this, the protective cover 13 rotates from the inclined position to the protective position, whereby the injection needle 21 is locked on the locking protrusion 13d of the protective cover 13 in a slip-off preventing state, and the protective cover 13 is maintained in the protective position.

As a result, the entire injection needle 21 can be covered with the protective cover 13, and the used injection needle 21 can be safely disposed of. In addition, when the protective cover portion 13 is tilted When the position is rotated to the protection position, both edge portions of the notch groove portion 12 a are in a state of contact with each other. Therefore, the protection cover portion 13 can be prevented from rotating further beyond the protection position.

」字狀的正面視形狀者。 Among them, the embodiment is an example of using the second hinge element 11Y having a "ℑ"-shaped front view shape. However, the second hinge element of the present invention is not limited to this. If it is configured to be elastically deformable, and in its Both ends are connected to the two extension parts of the first hinge element respectively. For example, the second hinge element may have an arc-like shape when viewed from the front, or may have a "

""-shaped shape when viewed from the front.

In addition, in the embodiment, the mounting part 10 is mounted on the base 21b of the injection needle 21. However, the mounting part of the present invention is not limited to this, and it may be mounted on a predetermined position of the syringe or the injection needle. For example, the mounting part may be mounted on the front end of the syringe barrel of the syringe.

In addition, in the embodiment, the protective cover 13 is configured to cover the entire injection needle 21 when it is in the protection position. However, the protection cover of the present invention is not limited to this. If it is in the protection position, it can cover at least the injection needle 21 . The predetermined part of the needle tip can be used. In addition, the shape of the protective cover is not limited to the shape of the protective cover 13 in the embodiment, and may be configured in various shapes.

On the other hand, the embodiment is an example in which the flexible portion is configured as the notch groove portion 12a in which a part of the connecting portion 12 is notched. However, the flexible portion of the present invention is not limited to this. If it is provided on the protective cover portion and the mounting between the parts and has flexibility. When the protective cover part in the inclined position is pressed to the protective position side, the protective cover part can be rotated from the inclined position to the protective position side by elastic deformation. For example, the flexible portion may be formed into a plate shape or a wall shape. or rod-shaped. In addition, the flexible part may also be provided between the hinge part and the mounting part.

In addition, the embodiment uses the notch groove portion 12a as an example of the notch portion. However, the notch portion of the present invention is not limited to this, and it may be a part of the connecting portion that is notched. For example, various shapes such as a curved edge portion may be used as the cutout portion.

In addition, in the embodiment, the hinge part 11 is used as the hinge part. However, the hinge part of the present invention is not limited to this. If the hinge part is in the first posture with the protective cover part in the separated position, and in the inclined position with the protective cover part Just rotate between the second position.

1: Protective gear

10:Installation Department

11: Hub Department

12:Connection part

13: Protective cover

20: syringe

21:Injection needle

22: syringe

23:Putter

Claims (5)

An injection needle protector, characterized by having: a mounting portion mounted on a syringe or a predetermined position of the injection needle; and a protective cap portion configured to be capable of being separated from the injection needle at a separation position. A protection position covering at least a predetermined portion of the injection needle including the needle tip, and a protection position located between the protection position and the separation position, closer to the injection needle than the separation position and inclined at a predetermined angle relative to the injection needle. Move between tilted positions; a hinge part is configured to be provided between the protective cover part and the aforementioned mounting part, and to rotate the aforementioned protective cover part between the aforementioned separation position and the aforementioned tilted position, and when the aforementioned protective cover When the part rotates from the separation position to the inclined position, the aforementioned protective cover part is maintained in the inclined position; and the flexible part is configured to be provided between the aforementioned protective cover part and the aforementioned mounting part and has flexibility. When the protective cover portion in the inclined position is pressed to the protective position side, the protective cover portion is elastically deformed to rotate from the inclined position to the protective position, and is further provided with: a connecting portion for connecting Between the protective cover part and the hinge part, the flexible part is composed of a notch part formed by notching a part of the connection part. For example, the protective device for injection needles in item 1 of the patent application scope, in which the preceding The cutout portion is configured to have two edge portions extending linearly while being separated from each other by the predetermined angle. The two edge portions are in contact with each other when the protective cover portion moves from the inclined position to the protective position. For example, in the injection needle protector of claim 1, the hinge portion is configured to be able to move between a first posture in which the protective cover portion is in the separated position and a second posture in which the protective cover portion is in the inclined position. It rotates between 2 postures, and is provided with: a first hinge element and a second hinge element. The first hinge element has: a curved end portion having a curved shape and flexibility; and the curved end portions are respectively The two extension parts extend and are respectively connected to both ends of the second hinge element. The second hinge element is configured to be elastically deformable. The hinge part is configured to be in the first posture and the second second position. When rotating between postures, the second hinge element is elastically deformed, and the curved end portion of the first hinge element is elastically deformed in such a way that the bending direction becomes the opposite direction while crossing the two extension portions. It moves along the straight line connected with the connecting portion of the second hinge element. For example, in the injection needle protector of claim 1, the hinge portion is configured to be able to move between a first posture in which the protective cover portion is in the separated position and a second posture in which the protective cover portion is in the inclined position. It rotates between 2 postures and is equipped with: a first hinge element and a second hinge element. The aforementioned first hinge element has: a curved end portion having a curved shape and flexibility; and two extension portions respectively extending from the curved end portion and respectively connected to both ends of the aforementioned second hinge element, The second hinge element is configured to be elastically deformed, the hinge portion is configured to elastically deform when rotating between the first posture and the second posture, and the first hinge element is configured to be elastically deformed. The curved end portion moves across a straight line connecting the two extension portions and the connection portion of the second hinge element while elastically deforming so that the bending direction becomes the opposite direction. For example, the protection device for injection needles of claim 2, wherein the hinge portion is configured to be able to move between a first posture in which the protective cover portion is in the separated position and a second posture in which the protective cover portion is in the inclined position. It rotates between 2 postures, and is provided with: a first hinge element and a second hinge element. The first hinge element has: a curved end portion having a curved shape and flexibility; and the curved end portions are respectively The two extension parts extend and are respectively connected to both ends of the second hinge element. The second hinge element is configured to be elastically deformable. The hinge part is configured to be in the first posture and the second second position. When rotating between postures, the second hinge element is elastically deformed, and the curved end portion of the first hinge element is elastically deformed in such a way that the bending direction becomes the opposite direction while crossing the two extension portions. It moves along the straight line connected with the connecting portion of the second hinge element.