Medicine injection device including a connector that makes it easy to separate the needle

Abstract

The present invention relates to a drug infusion device comprising a connector that facilitates easy separation of an injection needle, and more specifically, to a drug infusion device for easily separating an injection needle coupled to a tip from a connector of the drug infusion device. A drug infusion device according to one embodiment of the present invention comprises: a first body having a first communication portion formed therein that allows fluid to communicate with the tip of the injection needle and the inside of the first body having a first communication portion formed therein that allows fluid to communicate with the inside of the second body, the tip of which is connected to be inserted into the rear end of the first body and the rear end to which a tube for injecting fluid is connected, and an operating portion installed on the outer surface of the second body and separating the first body connected to the second body while rotating about an axis.

Description

Technology Field

[0001] The present invention relates to a drug infusion device comprising a connector that facilitates easy separation of an injection needle, and more specifically, to a drug infusion device for easily separating an injection needle coupled to a tip from a connector of the drug infusion device. Background Technology

[0002] Unless otherwise indicated in this specification, the contents described in this section are not prior art for the claims of this application, and are not to be recognized as prior art simply because they are included in this section.

[0004] In general, for pharmaceutical infusion devices used to inject fluids such as painkillers or nutritional supplements into the human body, the principle is to remove the single-use needle and dispose of it after the injection is finished and the needle is inserted into the human body to prevent hygiene and secondary infection.

[0005] Here, the injection needle is connected to the tube through which fluid flows via the connector of the drug infusion device, and the separation is achieved by the medical professional handling the drug infusion device using finger force to push the needle away from the connector.

[0006] However, separating multiple needles in the manner described above may strain the fingers, and there is a risk of injury, particularly from applying force incorrectly.

[0007] Accordingly, a connector structure was required to easily detach the injection needle in a simple and convenient manner while minimizing the force required to detach the needle. Prior art literature

[0008] 1. Korean Patent Registration No. 10-2015-0095081 (Published August 20, 2015) The problem to be solved

[0009] The present invention provides a drug infusion device comprising a connector structure for easily separating a needle attached to the tip from a connector of the drug infusion device, in order to solve the aforementioned problems.

[0010] Furthermore, it is evident that the technical challenges are not limited to those described above, and that other technical challenges may be derived from the following description. means of solving the problem

[0011] A drug infusion device according to one embodiment of the present invention comprises a first body having a first connecting portion formed therein, a second body having a second connecting portion formed therein, the front end of which is connected to be inserted into the rear end of the first body, and the rear end to which a tube for injecting fluid is connected, and an operating portion installed on the outer surface of the second body and which separates the first body connected to the second body while rotating about an axis.

[0012] According to a preferred feature of the present invention, the operating part may include a rotation module arranged perpendicular to the longitudinal direction of the second body and formed to surround the outer surface of the second body, a rotation shaft that fixes and rotates the rotation module on both sides of the outer surface of the second body, and a pressure surface formed at both ends of the rotation module and in contact with the rear end of the first body to push the first body.

[0013] According to a preferred feature of the present invention, the rotation module is composed of a pulling member formed on the upper side centered on the rotation axis and a pressing member extending from both sides to surround the second body from the pulling member, and when the pulling member is pulled, the pressing member can be pushed toward the rear end of the first body in a direction opposite to the pulling direction of the pulling member through the principle of leverage.

[0014] According to a preferred feature of the present invention, a step is formed protruding along the circumferential direction on the rear outer surface of the first body, and a locking member may be further included that extends from the upper part of the pulling member to wrap around the step of the first body.

[0015] According to a preferred feature of the present invention, the locking member may further include a support surface having a shape corresponding to the outer circumference of the first body and a detachment prevention member extending from both ends of the support surface toward the first body and surrounding the step to prevent the first body from detaching from the second body.

[0016] According to a preferred feature of the present invention, the pressure member may further include a guide groove extending along the longitudinal direction on the inner surface of the pressure member, wherein when the operating part is assembled to the second body, the pivot shaft may be configured to be inserted along the guide groove. Effects of the invention

[0017] According to an embodiment of the present invention, there is an advantage in that the injection needle can be easily separated in a simple and convenient manner through a connector structure for separating the injection needle coupled to the tip from the connector of a drug infusion device.

[0018] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description of the invention or the claims. Brief explanation of the drawing

[0019] FIG. 1 is a perspective view of a drug infusion device according to one embodiment of the present invention. FIG. 2 is an operating state diagram of a drug infusion device according to one embodiment of the present invention. FIG. 3 is a detailed view of an operating part in a drug infusion device according to one embodiment of the present invention. FIG. 4 is a perspective view of a drug infusion device according to another embodiment of the present invention. FIG. 5 is an operating state diagram of a drug infusion device according to another embodiment of the present invention. FIG. 6 is a detailed view of an operating part in a drug infusion device according to another embodiment of the present invention. Specific details for implementing the invention

[0020] Hereinafter, the structure, operation, and effects of the present invention according to a preferred embodiment will be examined with reference to the attached drawings. For reference, in the drawings below, each component is omitted or schematically illustrated for convenience and clarity, and the size of each component does not reflect its actual size. Furthermore, throughout the specification, the same reference numerals refer to the same components, and reference numerals for the same components in individual drawings are to be omitted.

[0022] A drug infusion device according to one embodiment of the present invention comprises: a first body (100) having a first communication part (120) formed therein that allows fluid to communicate with the tip of the injection needle (110) and allows fluid to communicate with the inside; a second body (200) having a second communication part (210) formed therein that allows fluid to communicate with the inside, the tip of which is connected to be inserted into the rear end of the first body (100), and the rear end of which is connected to a tube (220) through which fluid is injected; and an operating part (300) installed on the outer surface of the second body (200) and which separates the first body (100) connected to the second body (200) while rotating about an axis.

[0023] The first body (100) is configured to stably fix an injection needle (110) attached to the tip, and a predetermined space may be formed at the tip where the injection needle (110) can be inserted and attached. Inside the first body (100), a first communication part (120) is formed extending along the longitudinal direction so that fluid can communicate, and fluid delivered from the tube (220) through the second body (200) can be injected into the body through the first communication part (120) and the injection needle (110).

[0024] The second body (200) can be connected so that it is inserted into the open rear end of the first body (100). The front end of the second body (200) has a smaller diameter than the open rear end of the first body (100) so that they can be connected to each other by being fitted together.

[0025] A second communication part (210) capable of communicating with fluid may be formed extending along the longitudinal direction inside the second body (200), and a tube (220) may be connected to the rear end of the second body (200) so that fluid supplied through the tube (220) may be injected into the body through the second communication part (210) and the first communication part (120).

[0026] It may include an operating part (300) installed on the outer surface of the second body (200), more precisely on the outer surface of the second body (200) adjacent to the first body (100), and separating the first body (100) from the second body (200) using the lever principle.

[0027] The above operating part (300) may include a rotation module (310) arranged perpendicular to the longitudinal direction of the second body (200) and formed to surround the outer surface of the second body (200), a rotation shaft (320) that fixes and rotates the rotation module (210) on both sides of the outer surface of the second body (200), and a pressure surface (330) formed at both ends of the rotation module (310) and in contact with the rear end of the first body (100) to push the first body (100).

[0028] The above-mentioned pivot module (310) may be formed in a 'U' shape and may be arranged to wrap around the second body (200) in a direction perpendicular to its longitudinal direction. A pivot shaft (320) may be installed on both sides of the outer surface of the second body (200) to connect to both sides of the inner surface of the pivot module (310) and to pivotally rotate the pivot module (310). The pivot shaft (320) may be formed to penetrate the second body (200) and may also be formed to protrude from both sides of the outer surface of the second body (200).

[0029] Additionally, a pressure surface (330) that contacts the rear end of the first body (100) and pushes the first body (100) may be formed at both ends of the 'ㄷ'-shaped rotation module (310), and preferably, the pressure surface (330) may be formed in a round shape to have a predetermined curvature.

[0030] Here, the rotation module (310) is composed of a pulling member (311) formed on the upper side centered on the rotation axis (320) and a pressing member (312) extending from both sides to surround the second body (200) from the pulling member (311), and when the pulling member (311) is pulled, the pressing member (312) can be pushed toward the rear end of the first body (100) in the opposite direction to the pulling direction of the pulling member (311) through the principle of leverage.

[0031] The pulling member (311) is formed on the upper part and can be pulled toward the rear while held by the user, and the pressing member (312), which is extended from the pulling member (311) to wrap around the second body (200), presses toward the front in the opposite direction by the pulling of the pulling member (311) and presses the rear end of the first body (100).

[0032] Accordingly, when the rotation module (310) rotates around the rotation axis (320), the pressure surface (330) advances toward the rear end of the first body (100) and pushes the first body (100) forward, thereby separating it from the second body (200).

[0034] In another embodiment, a step (130) is formed protruding along the circumferential direction from the rear outer surface of the first body (100), and a locking part (340) may be further included that extends from the upper part of the pulling member (311) to wrap around the step (130) of the first body (100).

[0035] The above-mentioned locking part (340) is configured to prevent the first body (100) from detaching by contacting the step (130) formed on the rear outer surface of the first body (100) so as not to detach when the second body (200) is inserted into the first body (100) and coupled with it.

[0036] The above-mentioned locking portion (340) may further include a support surface (341) having a shape corresponding to the outer circumference of the first body (100), and a detachment prevention portion (342) that extends from both ends of the support surface (341) toward the first body (100) and surrounds the step (130) to prevent the first body (100) from detaching from the second body (200).

[0037] The support surface (341) may be formed in a semicircular shape corresponding to the outer surface of the first body (100), and as the support surface (341) comes into contact with the outer surface of the first body (100) adjacent to the step (130), the locking part (340) can stably fix the first body (100) without causing it to detach. In addition, the first body (100) can be maintained in a fixed state without detachment by means of a detachment prevention part (342) formed to extend toward the first body (100) from both ends of the support surface (341) and wrap around the step (130).

[0038] Here, the locking part (340) can be separated from the step (130) as the rotating module (310) rotates around the rotation axis (320), and the locking state of the locking part (340) is released while the pressing surface (330) presses the rear end of the first body (100).

[0040] Additionally, the device may further include a guide groove (313) that extends along the longitudinal direction on the inner side of the pressure member (312), and may be configured so that when the operating part (300) is assembled to the second body (200), the pivot shaft (320) can be inserted along the guide groove (313).

[0042] The guide groove (313) may be formed on the inner surface of the pressure member (312), and its direction may be formed in a direction toward the first body (100). The width of the guide groove (313) corresponds to the diameter of the pivot shaft (320) so that the pivot shaft (320) can be inserted into the guide groove (313). When the operating part (300) is assembled to the second body (200) by the guide groove (313) thus formed, the guide groove (313) is coupled so that it fits into both ends of the pivot shaft (320), and then slides along the guide groove (313) to easily and conveniently connect to the closed end of the guide groove (313).

[0044] Although preferred embodiments of the present invention have been described above with reference to the attached drawings, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all technical concepts of the present invention. Therefore, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application. Accordingly, the embodiments described above should be understood as illustrative in all respects and not restrictive, and the scope of the present invention is defined by the claims set forth below rather than by the detailed description. Furthermore, all modifications or variations derived from the meaning and scope of the claims and equivalent concepts should be interpreted as being included within the scope of the present invention. Explanation of the symbols

[0045] 100 : First body 110 : Injection needle 120 : First connecting part 130 : Step 200 : Second body 210: Second communication section 220 : Tube 300 : Operating part 310 : Rotation Module 311 : Pulling member 312 : Pressurizing member 313 : Guide Home 320 : Rotation axis 330 : Pressurized surface 340 : catch 341 : Support surface 342 : Detachment prevention part

Claims

Claim 1 A first body having a first connecting portion formed inside; a second body having a second connecting portion formed inside, with its front end connected to be inserted into the rear end of the first body and its rear end connected to a tube for injecting fluid; and an operating part installed on the outer surface of the second body and separating the first body connected to the second body while rotating about an axis; wherein the operating part comprises a rotation module arranged perpendicular to the longitudinal direction of the second body and formed to surround the outer surface of the second body, a rotation axis that fixes and rotates the rotation module on both sides of the outer surface of the second body, and a pressure surface formed at both ends of the rotation module that contacts the rear end of the first body and pushes the first body; wherein the rotation module is composed of a pulling member formed on the upper side centered on the rotation axis and a pressure member extending from both sides to surround the second body from the pulling member, and when the pulling member is pulled, a lever A drug injection device characterized by the principle that the above-mentioned pressurizing member is pushed toward the rear end of the first body in a direction opposite to the pulling direction of the pulling member. Claim 2 delete Claim 3 delete Claim 4 A drug injection device according to claim 1, further comprising a step formed protruding along the circumferential direction on the rear outer surface of the first body, and a locking member extended from the upper part of the pulling member to wrap around the step of the first body. Claim 5 A drug injection device according to claim 4, wherein the above-mentioned catch further comprises a support surface having a shape corresponding to the outer circumference of the first body and a detachment prevention part extending from both ends of the support surface toward the first body and surrounding the step to prevent the first body from detaching from the second body. Claim 6 A drug injection device according to claim 1, further comprising a guide groove extending along the longitudinal direction on the inner surface of the pressure member, wherein when the operating part is assembled to the second body, the pivot shaft is configured to be inserted along the guide groove.

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