Medicine skin test pen

Abstract

The utility model relates to the technical field of medical instruments, and discloses a medicine skin test pen which comprises a pen body, a sleeve is arranged on one side of the pen body, a machine body is arranged on the other side of the pen body, a pen core for containing skin test liquid medicine is arranged in the sleeve, an injection needle is arranged at the end, away from the pen body, of the sleeve, and the injection needle is connected with the pen core in an inserted mode. According to the medicine skin test pen, the first connecting assembly is arranged to replace traditional threads, the injection needle head is connected to the skin test pen, a user can install the injection needle head on the skin test pen through parts contained in the first connecting assembly without making contact with the injection needle head for a long time, and especially when the used injection needle head is dismantled, the injection needle head can be installed on the skin test pen through the parts contained in the first connecting assembly; the first connecting assembly enables the injection needle to be taken down from the whole skin test pen under the condition that the hand of a user does not make contact with the injection needle completely, the risk that the user is scratched by the tip end of the injection needle when dismantling the injection needle is reduced, potential safety hazards are eliminated, and the practicability of the whole device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a drug skin test pen. Background Art

[0002] In order to simplify the operating steps of skin allergy testing, an electric-driven automatic skin test pen is used for skin testing.

[0003] However, the traditional needle and the electric skin test pen are connected by a thread. When installing or removing the needle, a certain amount of time is required to rotate the needle. In particular, after the needle cover is removed to complete the injection, the medical staff's hands will directly contact the exposed tip of the needle, and the needle needs to be rotated at the same time. Due to the limited volume of the entire needle, it is easy to slip during actual rotation, and there is a risk of scratching the hand by the sharp end of the needle, which poses a safety hazard. If the needle cover is put back before removing the needle, the entire step will be too cumbersome to operate, which is not conducive to actual use. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a drug skin test pen, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: a drug skin test pen, comprising: a pen body, a sleeve is arranged on one side of the pen body, and an organism is arranged on the other side of the pen body, a pen core for accommodating skin test solution is arranged inside the sleeve, an injection needle is arranged at the end of the sleeve away from the pen body, and the injection needle is plugged into the pen core; a first connecting component is arranged on the end of the sleeve that contacts the injection needle, the first connecting component comprises a movable cylinder, a first spring, an insert block, a ball head rod, a connecting ring and a second spring, the movable cylinder is slidably arranged on the sleeve, the two ends of the first spring are respectively fixedly connected to the movable cylinder and the sleeve, the insert block is slidably arranged on the sleeve and plugged into the injection needle, the ball head rod is slidably arranged on the sleeve and fixedly connected to the insert block, the connecting ring is fixedly installed on the ball head rod, and the two ends of the second spring are respectively fixedly connected to the connecting ring and the sleeve.

[0006] Preferably, the movable cylinder contacts the ball end of the ball head rod, and the contact surface between the movable cylinder and the ball head rod is a conical arc surface, and the conical arc surface is designed to expand outward.

[0007] Preferably, a second connecting component is also provided on the side where the pen body contacts the sleeve, and the second connecting component includes a movable ring, a reset torsion spring, a stopper and an L-shaped groove body provided on the sleeve. The movable ring is rotatably provided on the pen body, and the two ends of the reset torsion spring are respectively fixedly connected to the movable ring and the pen body, and the stopper is fixedly mounted on the inner surface of the movable ring, and the stopper also contacts the inner surface of the L-shaped groove body.

[0008] Preferably, the injection needle is provided with a circular groove, and the circular groove cooperates with the insert block.

[0009] Preferably, a pointed plug is provided on the side of the pen body adjacent to the pen core, and the end of the pointed plug close to the pen core is sharp.

[0010] Preferably, a limit block is fixedly mounted on the inner wall of the sleeve, and the limit block is also in contact with the pen core.

[0011] Preferably, the pen body is also sleeved with a pen cover, and the injection needle is sleeved with a needle cover.

[0012] Preferably, the sleeve is of hollow design and is provided with a plurality of observation windows.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The drug skin test pen replaces the traditional thread by providing a first connecting component to connect the injection needle to the skin test pen. The user can install the injection needle on the skin test pen through the components contained in the first connecting component without long-term contact with the injection needle. Especially when removing the injection needle after use, the first connecting component can remove the injection needle from the entire skin test pen without the user's hand touching the injection needle at all, thereby reducing the risk of the user being scratched by the tip of the injection needle when removing the injection needle, eliminating safety hazards, and improving the practicality of the overall device.

[0015] 2. The drug skin test pen simplifies the connection steps between the sleeve and the pen body by providing a second connecting component, thereby further improving the overall use efficiency. At the same time, the second connecting component is assembled through common mechanical parts, so the overall cost is relatively low and suitable for actual adoption and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the movable ring of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the limit block of the utility model;

[0019] Figure 4 This is a schematic diagram of the plug-in structure of the utility model;

[0020] Figure 5 This is a schematic cross-sectional view of the movable cylinder structure of the utility model;

[0021] Figure 6 for Figure 5A schematic diagram of the enlarged structure in the middle.

[0022] In the figure: 1. pen body; 2. body; 3. sleeve; 4. pen core; 5. injection needle; 6. needle cover; 7. pen cover; 8. first connecting component; 81. movable cylinder; 82. first spring; 83. plug block; 84. ball head rod; 85. connecting ring; 86. second spring; 9. second connecting component; 91. movable ring; 92. reset torsion spring; 93. stop block; 94. L-shaped groove; 10. pointed plug; 11. limit block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 A drug skin test pen comprises: a pen body 1, a sleeve 3 is arranged on one side of the pen body 1, and an organic body 2 is arranged on the other side of the pen body 1, an operation panel and a display screen are arranged on the surface of the organic body 2, and a negative pressure generator is arranged inside the organic body 2, and the negative pressure generated by the negative pressure can be transmitted to the inside of the pen core 4 through a pointed plug 10 to achieve the purpose of automatic injection or extraction of liquid medicine, and at the same time, a sensor electrically connected to the operation panel of the organic body 2 is arranged on the negative pressure generator, so that the user only needs to press the corresponding button to realize automatic extraction of liquid without manual operation, and different extraction and pushing volumes can also be set by the operation panel to meet different medication needs, and a sensor is also arranged on the pointed plug 10, so that the above-mentioned display screen will display the configured drug information, including dosage, ratio and other information, which greatly simplifies the process of drug skin test configuration and improves the accuracy of configuration. The pen body 1 is provided with a needle cap 6, and the needle cap 6 is provided on the inner wall of the sleeve 3. The pen body 1 is provided with a needle cap 7, and the needle cap 6 is provided on the inner wall of the sleeve 3. The pen body 1 is provided with a needle cap 7, and the needle cap 6 is provided on the inner wall of the sleeve 3. The sleeve 3 is hollow, and a plurality of observation windows are provided on the sleeve 3, which provide the user with an additional means to observe the liquid content in the pen core 4, so as to improve the performance of the overall device.

[0025] The first connecting assembly 8 is arranged on the end of the sleeve 3 that contacts the injection needle 5. The first connecting assembly 8 includes a movable cylinder 81, a first spring 82, an insert block 83, a ball rod 84, a connecting ring 85 and a second spring 86. The movable cylinder 81 is slidably arranged on the sleeve 3. The two ends of the first spring 82 are fixedly connected to the movable cylinder 81 and the sleeve 3 respectively. The insert block 83 is slidably arranged on the sleeve 3 and plugged into the injection needle 5. The ball rod 84 is slidably arranged on the sleeve 3 and fixedly connected to the insert block 83. The connecting ring 85 is connected to the sleeve 3. The ring 85 is fixedly mounted on the ball head rod 84, and the two ends of the second spring 86 are fixedly connected to the connecting ring 85 and the sleeve 3 respectively. The movable cylinder 81 contacts the ball head end of the ball head rod 84, and the contact surface between the movable cylinder 81 and the ball head rod 84 is a conical arc surface, and the conical arc surface is designed to expand outward. A circular groove is provided on the injection needle 5, and the circular groove cooperates with the plug block 83 to ensure the rationality of the established structure, so that the various components will not interfere with each other during operation, so as to achieve the purpose of pre-establishing such structures.

[0026] A second connecting component 9 is also provided on the side where the pen body 1 contacts the sleeve 3. The second connecting component 9 includes a movable ring 91, a reset torsion spring 92, a stopper 93 and an L-shaped groove 94 provided on the sleeve 3. The movable ring 91 is rotatably provided on the pen body 1. The two ends of the reset torsion spring 92 are fixedly connected to the movable ring 91 and the pen body 1 respectively. The stopper 93 is fixedly mounted on the inner surface of the movable ring 91, and the stopper 93 is also in contact with the inner surface of the L-shaped groove 94, which further simplifies the operating steps of the overall device to improve the overall operating efficiency.

[0027] Working principle: the pen core 4 is inserted into the sleeve 3, and a limit block 11 is set on the sleeve 3 to limit the position of the pen core 4, and then the sleeve 3 is sleeved on the pen body 1. During this process, the pointed plug 10 on the pen body 1 will pierce the protective layer on the pen core 4 and insert into it. The negative pressure generated by the negative pressure generator inside the body 2 can be transmitted to the inside of the pen core 4 through the pointed plug 10 to push the liquid medicine inside the pen core 4 to complete the injection. Before the sleeve 3 is sleeved on the pen body 1, the movable ring 91 is rotated to adjust the position of the stopper 93 so that the stopper 93 coincides with the opening of the L-shaped groove 94 provided on the sleeve 3. At this time, the sleeve 3 can be pushed toward the pen body 1, and then the movable ring 91 is loosened. Under the action of the reset torsion spring 92 fixedly connected to the movable ring 91 and the pen body 1 at both ends, the movable ring 91 is reversed, and the stopper 93 returns to the initial position. At this time, the stopper 93 contacts the closed end of the L-shaped groove 94, see Figure 2 A plurality of blocks 93 in different directions cooperate to limit the position of the sleeve 3 on the pen body 1. When the sleeve 3 needs to be removed to replace the pen core 4 containing the skin test solution, it is only necessary to rotate the movable ring 91 again to adjust the position of the block 93.

[0028] When installing or removing the injection needle 5, the movable cylinder 81 sliding on the surface of the sleeve 3 is pushed so that the inner wall of the movable cylinder 81 does not contact the ball end of the ball rod 84. The connecting ring 85 fixed on the ball rod 84 is connected to the sleeve 3 by the second spring 86. Therefore, under the elastic force of the second spring 86, the ball rod 84 and the plug block 83 fixed at the lower end of the ball rod 84 are pushed to slide outward, and the plug block 83 will slide into the sleeve 3, so that the inner wall of the sleeve 3 is in a smooth state. At this time, the injection needle 5 is inserted into the sleeve 3, and the injection needle 5 is connected to the pen core 4 at the same time. Then the movable cylinder 81 is loosened. Under the action of the first spring 82 fixedly connected to the movable cylinder 81 and the sleeve 3 at both ends, the movable cylinder 81 is The cylinder 81 slides toward the ball rod 84, and because the inner wall of the movable cylinder 81 is in an outwardly expanded state, after the movable cylinder 81 slides toward the ball rod 84, it will squeeze the ball rod 84, causing the ball rod 84 to slide toward the center of the sleeve 3 until the plug block 83 is inserted into the preset slot on the injection needle 5. At this time, the connection and installation of the injection needle 5 is completed. When removing the injection needle 5, since the injection needle 5 and the pen core 4 are in a plug-in connection relationship, by sliding the movable cylinder 81, the plug block 83 does not contact the injection needle 5, and then the end of the sleeve 3 close to the injection needle 5 is downward. Under the action of the injection needle 5's own gravity, it will automatically slide out of the sleeve 3, thereby achieving the purpose of contactless removal of the injection needle 5.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drug skin test pen, characterized in that: include: A pen body (1), wherein a sleeve (3) is arranged on one side of the pen body (1), and an organic body (2) is arranged on the other side of the pen body (1); a pen core (4) containing a skin test solution is arranged inside the sleeve (3); an injection needle (5) is arranged at the end of the sleeve (3) away from the pen body (1), and the injection needle (5) is plugged into the pen core (4); A first connecting assembly (8) is arranged at the end of the sleeve (3) in contact with the injection needle (5). The first connecting assembly (8) comprises a movable cylinder (81), a first spring (82), an insert block (83), a ball head rod (84), a connecting ring (85) and a second spring (86). The movable cylinder (81) is slidably arranged on the sleeve (3). Two ends of the first spring (82) are respectively fixedly connected to the movable cylinder (81) and the sleeve (3). The insert block (83) is slidably arranged on the sleeve (3) and plugged into the injection needle (5). The ball head rod (84) is slidably arranged on the sleeve (3) and fixedly connected to the insert block (83). The connecting ring (85) is fixedly mounted on the ball head rod (84). Two ends of the second spring (86) are respectively fixedly connected to the connecting ring (85) and the sleeve (3).

2. A drug skin test pen according to claim 1, characterized in that: The movable cylinder (81) contacts the ball end of the ball head rod (84), and the contact surface between the movable cylinder (81) and the ball head rod (84) is a conical arc surface, and the conical arc surface is designed to expand outwards.

3. A drug skin test pen according to claim 1, characterized in that: A second connecting assembly (9) is also provided on the side of the pen body (1) in contact with the sleeve (3). The second connecting assembly (9) comprises a movable ring (91), a return torsion spring (92), a stopper (93) and an L-shaped groove (94) provided on the sleeve (3). The movable ring (91) is rotatably arranged on the pen body (1). The two ends of the return torsion spring (92) are respectively fixedly connected to the movable ring (91) and the pen body (1). The stopper (93) is fixedly mounted on the inner surface of the movable ring (91), and the stopper (93) is also in contact with the inner surface of the L-shaped groove (94).

4. A drug skin test pen according to claim 2, characterized in that: The injection needle (5) is provided with a circular groove, and the circular groove cooperates with the insert block (83).

5. A drug skin test pen according to claim 1, characterized in that: A pointed plug (10) is provided on the side surface of the pen body (1) adjacent to the pen core (4); the end of the pointed plug (10) close to the pen core (4) is sharp.

6. A drug skin test pen according to claim 1, characterized in that: A limit block (11) is fixedly mounted on the inner wall of the sleeve (3), and the limit block (11) is also in contact with the pen core (4).

7. A drug skin test pen according to claim 1, characterized in that: The pen body (1) is also sleeved with a pen cover (7), and the injection needle (5) is sleeved with a needle cover (6).

8. A drug skin test pen according to claim 1, characterized in that: The sleeve (3) is of hollow design, and a plurality of observation windows are also provided on the sleeve (3).

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