Subcutaneous injection device

Abstract

The utility model provides a subcutaneous injection device which comprises a needle cylinder seat, a push rod driving seat, a main machine and an angle seat and can be used for long-time subcutaneous injection, when the device is used, after the device is fixed on a thigh by means of the angle seat, automatic needle feeding and automatic pushing can be achieved by means of the angle seat, and only a corresponding motor needs to be started. According to the automatic subcutaneous injection device, subcutaneous injection can be automatically carried out according to time and speed, the two hands of nursing personnel can be liberated, clinical service can be more effectively achieved, the operation burden of medical personnel is relieved, the set angle and speed can be always kept in the needle inserting and medicine pushing process, the needle inserting and medicine pushing process can be accurately carried out according to setting of electric equipment, and the subcutaneous injection quality can be better ensured.

Description

Technical Field

[0001] This utility model relates to a subcutaneous injection device. Background Technology

[0002] Subcutaneous injection, commonly involving small doses and short administration times, uses a standard subcutaneous syringe consisting of a needle and syringe, which is directly held and administered by healthcare professionals. With advancements in medicine and pharmacy, some medications that previously required intravenous injection have been reclassified for subcutaneous administration, allowing for outpatient administration via the thigh. This can, in some cases, eliminate the need for hospitalization, improving treatment efficiency and often reducing patient discomfort. However, subcutaneous injection of these medications, compared to the previous short-duration injections of approximately one second, requires a longer administration time, often 2-5 minutes, or even 6-8 minutes, manually. The entire process is performed manually, making it significantly more difficult and demanding than ordinary subcutaneous injections. Utility Model Content

[0003] The purpose of this invention is to provide a subcutaneous injection device for prolonged operation, which can reduce the operational burden on medical staff for long-duration subcutaneous injections and also improve the quality of subcutaneous injection. To this end, this invention adopts the following technical solution:

[0004] A subcutaneous injection device is characterized by comprising a syringe holder, a push rod drive seat, and a main unit. The syringe holder is movably mounted on the main unit. The push rod drive seat is coaxial with the syringe holder and is also movably mounted. The subcutaneous injection device is provided with an angle seat. The angle seat is provided with a first connecting part that matches the human body part in front of the subcutaneous injection position, and a second connecting part that is angularly engaged with the connecting part. The main unit is connected to the second connecting part. The angle is adapted to the angle of subcutaneous injection needle insertion, so that the syringe holder can be set at a suitable needle insertion angle.

[0005] The syringe holder is equipped with a syringe holder;

[0006] The subcutaneous injection device is equipped with an electric drive mechanism for the syringe holder and an electric drive mechanism for the push rod holder, which can automatically drive the syringe holder to move back and forth and automatically drive the push rod holder to move back and forth through the control of the controller.

[0007] The subcutaneous injection device is also provided with a part for connection to a fixing mechanism or a fixing mechanism is provided, the fixing mechanism being used to fix the subcutaneous injection device in a position on the human body in front of the subcutaneous injection site.

[0008] Based on the above technical solutions, the present invention may also adopt the following further technical solutions, or combine these further technical solutions:

[0009] The main unit is detachably connected to the second connection point.

[0010] The second connection part includes a top inclined support surface for placing the host, and a barrier around the host is set around the top inclined support surface to hold the host in place.

[0011] The angle seat is a silicone seat.

[0012] The first connecting part is a concave arc surface that fits the thigh.

[0013] The housing is equipped with operation keys and a display screen connected to the controller. The operation keys include an injection time setting key, a motor control switch, and a power switch.

[0014] The main unit's outer casing has a slot on one side for mounting the syringe holder, and a display screen and operation keys on the other side. The controller is located on the other side of the main unit. The syringe holder has a syringe limiting groove with open front and rear. The push rod drive seat has a push rod pressing head slot.

[0015] The rear groove bottom of the syringe holder is open to allow the push rod drive seat to move. The push rod drive seat is located inside the rear part of the syringe holder through the open rear groove bottom, or is partially located inside the syringe holder, and its tail can move from the rear of the syringe holder into the syringe holder.

[0016] The fixing structure uses straps, and the two sides of the main unit are provided with parts that connect to the fixing mechanism.

[0017] Because of the technical solution of this utility model, this utility model can be used in situations requiring long-term subcutaneous injection. When in use, after the device is fixed to the thigh with the help of the angle seat, it can automatically perform subcutaneous injection according to the time and speed by simply turning on the corresponding motor. This can free up the hands of nursing staff, more effectively serve the clinical needs, reduce the operational burden of medical staff, and maintain the set angle throughout the needle insertion and drug delivery process. The speed can also be accurately adjusted according to the settings of the electric device, which can further ensure the quality of subcutaneous injection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating the usage state of an embodiment of the present utility model.

[0019] Figure 2 This is a schematic diagram of an embodiment of the present utility model.

[0020] Figure 3 This is a top view of an embodiment of the present utility model.

[0021] Figure 4 This is a partial cross-sectional view of an embodiment of the present utility model.

[0022] Figure 5 This is a schematic diagram of an embodiment of the present invention with the angle seat hidden. Detailed Implementation

[0023] Referring to the accompanying drawings, this utility model provides a subcutaneous injection device, including a syringe holder 1, a push rod drive seat 2, and a main unit 3. The syringe holder 1 is mounted on the main unit 3 with a front-to-back displacement capability. The push rod drive seat 2 is coaxial with the syringe holder and can also be mounted with a front-to-back displacement capability. The subcutaneous injection device is provided with an angle seat 4. The angle seat 4 has a first connecting part 41 that matches the body part in front of the subcutaneous injection position, and a second connecting part 42 that is angularly engaged with the first connecting part 41. The main unit 3 is connected to the second connecting part 42. The angle is adapted to the angle of subcutaneous injection needle insertion, so that the syringe holder can be set at a suitable angle for needle insertion. In the figures, reference numeral 101 is a subcutaneous injection syringe, reference numeral 102 is a syringe push rod, reference numeral 103 is a subcutaneous injection needle, and reference numeral 104 is a push rod pressing head.

[0024] The syringe holder 1 is provided with a slot for the subcutaneous injection syringe 101, which can place and position the subcutaneous injection syringe 101. The slot can be a long groove, namely the syringe limiting groove 11, whose length can cover the full length or part of the syringe plunger 102.

[0025] The subcutaneous injection device is equipped with an electric drive mechanism for the syringe holder and an electric drive mechanism for the push rod holder, which can automatically drive the syringe holder 1 to move back and forth and automatically drive the push rod holder 2 to move back and forth under the control of the controller.

[0026] The subcutaneous injection device also has a connection point with a fixing mechanism, which is used to fix the subcutaneous injection device to a part of the human body before the subcutaneous injection position, such as the thigh 100. The fixing structure uses a strap 6, and the end of the strap can be provided with Velcro. The main unit has connection points on both sides for connecting to the fixing mechanism, such as flat holes for passing the strap. Through the second connecting part 42 and the fixing mechanism, the subcutaneous injection device can be firmly and stably fixed to the human body. And through the angular cooperation between the first connecting part 41 and the second connecting part 42, the syringe base 1 and the push rod drive seat 2 (i.e., the subcutaneous syringe) maintain a suitable needle insertion and injection angle.

[0027] The second connecting part 42 is provided with a structure that can be detachably connected to the main unit 3. The main unit 3 is detachably connected to the second connecting part 42, which facilitates the replacement of the angle seat 4 or the maintenance of the subcutaneous injection device main unit.

[0028] The structure of the second connecting part 42 that is detachably connected to the host 3 includes a top inclined support surface 421 for placing the host 3. The top inclined support surface 421 and the first connecting part 41 are in an angular fit relationship. A host enclosure 422 is set around the top inclined support surface 421 to hold the host 3 in place.

[0029] The angle seat 4 can be a silicone seat, which can be a whole silicone body or have a rigid core embedded inside. The enclosure 422 can also be the aforementioned silicone. The first connecting part 41 can adopt a concave arc surface that fits the thigh, which can increase the stability of the fixation and the comfort of the fit. This part can be a silicone body, or a replaceable pad can be provided at the first connecting part 41.

[0030] The main unit 3 houses the motors, transmission components, controller circuit boards, and power supply for the electric drive mechanisms of the syringe holder and the push rod drive seat. The motor 38 of the syringe holder electric drive mechanism can drive the syringe holder 1 using a screw 32 and nut 13 connection structure, wherein the nut is connected to the syringe holder 1, and the screw 32 is connected to the motor 38. The motor 39 of the push rod drive seat electric drive mechanism can drive the push rod drive seat using a screw 33 and nut 21 connection structure, wherein the nut 21 is connected to the push rod drive seat 2, and the screw 33 is connected to the motor 9.

[0031] A sliding guide structure can be provided between the syringe holder 1 and the main unit 3. For example, a guide rod 34 is provided on the main unit 3, and a guide plate 12 sleeved on the guide rod 34 is provided on the syringe holder 1, so that the syringe holder can be installed on the main unit 3 by moving back and forth. The push rod drive seat 2 can be installed on the main unit 3. A sliding guide structure can be provided between the push rod drive seat 2 and the main unit 3. For example, a guide rod 35 is provided on the main unit 3, and a guide structure 23 sleeved on the guide rod 35 is provided on the push rod drive seat 2, so that it can be installed by moving back and forth.

[0032] The surface of the host 3 is provided with operation keys and a display screen 31 connected to the controller. The operation keys include an injection time setting key, a motor control switch 37, and a power switch 36.

[0033] The outer casing of the host 3 has a slot on one side for mounting the syringe holder 1, and a display screen 31 and operation keys on the surface of the other side. The controller is located on the other side of the host 3. The syringe holder 1 is provided with a syringe limiting groove 11, which is open at the front and back. The rear end of the push rod drive seat 2 is provided with a push rod pressing head slot 22.

[0034] The rear groove bottom of the syringe holder 1 is open 14 to allow the push rod drive seat 2 to move. The push rod drive seat 2 is located inside the rear part of the syringe holder 1 through the rear groove bottom open 14, or is partially located inside the syringe holder 1. Its tail can move from the rear of the syringe holder 1 into the syringe holder 1, which can protect the push rod drive seat 2.

[0035] Before use, press the power button, connect the subcutaneous syringe, adjust the medication timing, fix the device on the thigh, and press start to achieve autonomous needle insertion and drug injection. Data can be transmitted to mobile phones or computers via Bluetooth or Wi-Fi. Patients can also view their medication status through smart devices, which can monitor the patient's medication status in real time and provide a uniform drug injection rate and relatively accurate medication timing.

[0036] The above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the protection scope of the present utility model.

[0037] It should be noted that the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. The terms "installed," "set," "equipped with," "connected," "linked," and "sleeve" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In the description of this utility model, it should be understood that the terms "one end," "the other end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first" and "second" are also used only for the sake of brevity in description and do not indicate or imply relative importance.

Claims

1. A subcutaneous injection device, characterized in that, The device includes a syringe holder, a push rod drive seat, and a main unit. The syringe holder is mounted on the main unit and can be moved back and forth. The push rod drive seat is coaxial with the syringe holder and can also be moved back and forth. The subcutaneous injection device is provided with an angle seat. The angle seat is provided with a first connecting part that matches the human body part in front of the subcutaneous injection position, and a second connecting part that is angularly engaged with the connecting part. The main unit is connected to the second connecting part. The angle is adapted to the angle of subcutaneous injection needle insertion, so that the syringe holder can be set at a suitable needle insertion angle. The syringe holder is equipped with a syringe holder; The subcutaneous injection device is equipped with an electric drive mechanism for the syringe holder and an electric drive mechanism for the push rod holder, which can automatically drive the syringe holder to move back and forth and automatically drive the push rod holder to move back and forth through the control of the controller. The subcutaneous injection device is also provided with a part for connection to a fixing mechanism or a fixing mechanism is provided, the fixing mechanism being used to fix the subcutaneous injection device in a position on the human body in front of the subcutaneous injection site.

2. A hypodermic injection device as defined in claim 1, wherein The main unit is detachably connected to the second connection point.

3. A hypodermic injection device as defined in claim 1, wherein The second connection part includes a top inclined support surface for placing the host, and a barrier around the host is set around the top inclined support surface to hold the host in place.

4. A hypodermic injection device as defined in claim 1, wherein The angle seat is a silicone seat.

5. A hypodermic injection device as defined in claim 1, wherein The first connecting part is a concave arc surface that fits the thigh.

6. A hypodermic injection device as defined in claim 1, wherein The surface of the host is provided with operation keys and a display screen connected to the controller. The operation keys include an injection time setting key, a motor control switch, and a power switch.

7. A hypodermic injection device as defined in claim 1, wherein The main unit's outer casing has a slot on one side for mounting the syringe holder, and a display screen and operation keys on the other side. The controller is located on the other side of the main unit. The syringe holder has a syringe limiting groove with open front and rear. The push rod drive seat has a push rod pressing head slot.

8. A hypodermic injection device as defined in claim 1, wherein, The rear groove bottom of the syringe holder is open to allow the push rod drive seat to move. The push rod drive seat is located inside the rear part of the syringe holder through the open rear groove bottom, or is partially located inside the syringe holder, and its tail can move from the rear of the syringe holder into the syringe holder.

9. A hypodermic injection device as defined in claim 1, wherein The fixing mechanism uses straps, and the main unit has connection points on both sides that connect to the fixing mechanism.

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