A medical injection device for use in dim light environments

Abstract

The present invention relates to a medical injection device for use in a dimly lit environment, and belongs to the technical field of medical equipment. The device comprises: a wristband; an injection component, which comprises a housing, a needle, an isolator, a locking component, a first one-way valve, a second one-way valve, and an expandable and compressible container; the needle is located on the lower surface of the isolator, and the interior of the needle is connected to the upper chamber; the first one-way valve is located between the lower chamber and the first end of the infusion tube; the second one-way valve is located between the expandable and compressible container in the upper chamber and the second end of the infusion tube; an ultrasonic positioning and guidance device, which is used to determine the position of the blood vessel and guide the user; the locking component is used to move the isolator downward and release it to its original position; the top cover is used to compress the expandable and compressible container in the housing and can be opened under the action of an external force to release the expandable and compressible container; when the liquid medicine in the main body outputs a predetermined volume, the first one-way valve opens. Through the present invention, convenient, fast, and safe injections can be achieved in a dimly lit environment.

Description

Technical Field

[0001] The present invention relates to a medical injection device, in particular to a medical injection device used in a dim light environment. Background Art

[0002] In some combat situations, when a soldier is injured, he needs to be injected with medicine in time. However, due to dim light and inconvenience in turning on the lighting device, there is an urgent need for a medical injection device that can quickly perform injections in a dark environment. Summary of the Invention

[0003] In view of the above shortcomings in the prior art, the present application proposes a medical injection device for use in a dim light environment, which comprises:

[0004] An annular, non-closed wristband comprising a first slide rail, a second slide rail, a first port, a second port, and a cavity;

[0005] An injection component is connected to the first port and the second port, is located between the first port and the second port, and is movable on the first slide rail and the second slide rail; the injection component includes a housing, a needle, a spacer, a locking component, a first one-way valve, a second one-way valve, and an expandable and compressible container; the housing includes a top cover and a bottom cover; the spacer divides the interior of the housing into an upper chamber and a lower chamber, the needle is located on the spacer, and the interior of the needle is connected to the upper chamber;

[0006] An infusion tube, comprising a main body for containing liquid medicine and positioned within the cavity of the bracelet; a first end of the infusion tube connected to a first side of the lower chamber, with a first one-way valve positioned between the lower chamber and the first end; a second end of the infusion tube connected to an expandable and compressible container in the upper chamber, with the second one-way valve positioned between the expandable and compressible container in the upper chamber and the second end;

[0007] an ultrasonic positioning and guidance device for locating a suitable blood vessel on the arm and guiding the user to move the injection component to the blood vessel;

[0008] The locking component is used to move the partition downward under the action of an external force until the needle penetrates the bottom cover and fix the partition and release the partition at the end of the injection to withdraw the needle from the blood vessel;

[0009] The top cover is used to compress the expandable and compressible container within the shell and can be opened under the action of external force to release the expandable and compressible container, thereby causing the second one-way valve to open accordingly and allowing the medical liquid to enter the expandable and compressible container from the main body; when the medical liquid in the main body outputs a predetermined volume, the first one-way valve opens to allow the medical liquid to further enter the upper chamber from the main body; the expanded expandable and compressible container can compress the medical liquid under the action of external force and press the medical liquid into the needle for injection.

[0010] According to some embodiments of the present invention, the bottom cover comprises a partially penetrable portion for allowing a needle to pass through.

[0011] According to some embodiments of the present invention, the expandable and compressible container can be compressed and folded into a bellows shape under pressure and elastically expand when the pressure is released.

[0012] According to some embodiments of the present invention, the main body portion includes a plurality of U-shaped return portions.

[0013] According to some embodiments of the present invention, the main body portion includes a plurality of zigzag folded portions.

[0014] According to some embodiments of the present invention, an ultrasonic positioning and guiding device includes an ultrasonic control and processing device, a first guiding device located on a first slide rail, a first ultrasonic transmitter, and a first ultrasonic receiver, and a second guiding device located on a second slide rail, a second ultrasonic transmitter, and a second ultrasonic receiver;

[0015] The ultrasonic control and processing device is used to control each ultrasonic transmission and reception operation, and obtain each ultrasonic data, and obtain characteristic data of a plurality of venous blood vessels based on each ultrasonic data;

[0016] The ultrasonic control and processing device determines the most suitable blood vessel for intravenous injection based on the acquired characteristic data of multiple venous blood vessels.

[0017] According to some embodiments of the present invention, the first guiding device and the second guiding device respectively include an electromagnet for attracting a corresponding metal piece or metal point on the injection component when the injection component moves to the blood vessel position determined by the ultrasound positioning and guiding device; or,

[0018] The first guiding device and the second guiding device respectively include a vibration device for generating vibration when the injection component moves to the blood vessel position determined by the ultrasound positioning and guiding device.

[0019] According to some embodiments of the present invention, the first one-way valve opens when the pressure difference between the two sides exceeds a first pressure threshold, and the second one-way valve opens when the pressure difference between the two sides exceeds a second threshold.

[0020] According to some embodiments of the present invention, the bracelet includes a plurality of loops of infusion tubes wrapped around the arm and a main body.

[0021] According to some embodiments of the present invention, the wristband has a handcuff-like structure, the first slide rail and the second slide rail are located on the handcuffs, and the infusion tube and the main body thereof are elastically retractable.

[0022] According to some embodiments of the present invention, the second one-way valve is located at the bottom of the upper chamber.

[0023] In this invention, the drug solution is pre-stored in the bracelet, eliminating the traditional step of extracting the drug solution before injection and the inconvenience of operation in low-light environments. This invention completes the injection through a simple locking and pressing operation, significantly shortening the injection time and lowering the user threshold, which is crucial in emergency situations requiring rapid treatment. Furthermore, by designing the opening conditions of the first one-way valve and the compression space of the expandable and compressible container 9, the final drug solution injection dose can be controlled, which is of great significance for ensuring therapeutic efficacy and avoiding overdose. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A side view showing a medical injection device according to some embodiments of the present invention in a rest state (non-operating state);

[0026] Figure 2 shows a side view of a medical injection device according to some embodiments of the present invention when a fixing member is depressed;

[0027] Figure 3 A side view showing a medical injection device according to some embodiments of the present invention with the top cover opened;

[0028] Figure 4 A side view showing a medical injection device according to some embodiments of the present invention when the expandable and compressible container is depressed;

[0029] Figure 5 A side view showing a medical injection device according to some embodiments of the present invention when a medical solution is further injected into the expandable and compressible container 9;

[0030] Figure 6 The structure of the main body of the medical injection device according to some embodiments of the present invention is shown;

[0031] Figure 7 Shows the structure of the main body of a medical injection device according to other embodiments of the present invention;

[0032] Figure 8 The structure of the main body of the medical injection device according to some further embodiments of the present invention is shown;

[0033] Figure 9 Showing the guiding device of the medical injection device according to some further embodiments of the present invention;

[0034] Figure 10 A locking component of a medical injection device according to some embodiments of the present invention is shown. DETAILED DESCRIPTION

[0035] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. These embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of this application may be combined and referenced with each other. In addition, the described embodiments are only some embodiments of the present invention, rather than all embodiments.

[0036] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. For any component, data or structure mentioned in the embodiments of the present application, in the absence of clear definition or contrary revelation given in the preceding and following text, it can generally be understood to be one or more. "Multiple" may refer to two or more. The terms "comprise", "include", "contain" and "have" are inclusive and therefore indicate the presence of the stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof.

[0037] In addition, the term "and / or" in this application is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0038] Figure 1-5 side views of the injection device are shown, with the figures corresponding to a stationary state, a state in which the fixing member is pressed down, a state in which the top cover is opened, a state in which the expandable and compressible container 9 (referred to as the container) is pressed down, and a state in which the medical solution is further injected into the expandable and compressible container 9; Figure 6-Figure 8 Various possible structures of the main body 6 are shown; for the convenience of illustration, Figure 1-5 The side view directly shows the main body 6 and the first end 13 and the second end 14 located in the cavity 4 of the bracelet 1, without showing the bracelet part. Figure 9 and Figure 10 The guide device and the locking component are shown separately.

[0039] refer to Figures 1 to 10According to some embodiments of the present invention, the medical injection device comprises:

[0040] An annular, non-closed bracelet 1 comprising a first slide rail 101, a second slide rail 102, a first port 2, a second port 3 and a cavity 4;

[0041] The injection component 5 is connected to the first port 2 and the second port 3, is located between the first port and the second port, and can move on the first slide rail 101 and the second slide rail 102; the injection component 5 includes a housing 7, a needle 8, a spacer 10, a locking component 200 (see Figure 10 ), a first one-way valve 15 (green portion in the figure), a second one-way valve 16 (green portion in the figure), and an expandable and compressible container 9; the housing 7 includes a top cover 11 and a bottom cover 12; a partition 10 divides the interior of the housing 7 into an upper chamber and a lower chamber, and the needle 8 is located on the lower surface of the partition 10, and the interior of the needle 8 is connected to the upper chamber;

[0042] An infusion tube (not numbered overall) includes a main body 6 for containing liquid medicine and located within the cavity 4 of the bracelet 1, as well as a first end 13 and a second end 14. The first end 13 is connected to a first side of the lower chamber, with a first one-way valve 15 located between the lower chamber and the first end 13. The second end 14 is connected to the expandable and compressible container 9 in the upper chamber, with a second one-way valve 16 located between the expandable and compressible container 9 in the upper chamber and the second end 14.

[0043] An ultrasonic positioning and guiding device (not shown), which is used to determine the location of a blood vessel on the arm suitable for injection and guide the user to move the injection component 5 to the blood vessel location;

[0044] The locking member is used to move the spacer 10 downward under the action of an external force until the needle 8 penetrates the bottom cover 12 and fixes the spacer 10 and releases the spacer 10 at the end of the injection to withdraw the needle 8 from the blood vessel;

[0045] The top cover 11 is used to compress the expandable and compressible container 9 in the housing 7 in a static state, and can be opened under the action of an external force in a use state to release the expandable and compressible container 9 to the outside of the housing 7 and open the second one-way valve 16 accordingly (such as Figure 3 As shown in the expandable and compressible container 9, the liquid medicine can enter the expandable and compressible container 9 from the main body 6, as shown in the expandable and compressible container 9 Figure 4 The red portion 9' is shown, while the black portion 9'' corresponds to the portion of the main body 6 that flows into the upper chamber. Figure 3 and Figure 4In fact, they happen simultaneously, but for the sake of clarity, they are explained separately. When the liquid medicine in the main body 6 outputs a predetermined volume, the first one-way valve 15 opens to allow the liquid medicine to further enter the upper chamber from the main body 6, while the liquid medicine in the wristband part enters the upper chamber. Figure 5 As shown in 91, the expanded expandable and compressible container 9 can compress the liquid medicine under the action of external force and force the liquid medicine into the needle 8 for injection. By designing the opening conditions of the first one-way valve 15 and the compression space of the expandable and compressible container 9, the final injection dose of the liquid medicine can be controlled.

[0046] The actual use of the injection device is described below.

[0047] First, the user can move the injection device until it reaches the location of a suitable blood vessel on the arm determined by the ultrasound positioning and guidance device. When ready, the user first uses the locking component to move the isolation member 10 downward until the needle 8 penetrates the bottom cover 12 and enters the blood vessel in the skin 17, and then fixes the isolation member 10 there. Figure 2 As shown, the spacer 10 moves from its original dotted line position to another solid line position.

[0048] Afterwards, the user can open the top cover 11, for example, by rotating it. The top cover 11 can also be fixed to the housing 7 in other ways. After unscrewing the top cover 11, the expandable and compressible container 9 is released to the outside of the housing 7 due to its own compression elasticity. Due to the increase in space, the pressure inside the expandable and compressible container 9 is greatly reduced, causing the second one-way valve 16 to open accordingly due to the pressure difference on both sides, thereby allowing the medical liquid to enter the expandable and compressible container 9 from the main body 6. When the pressure in the internal space of the main body 6 changes below a certain threshold due to the continuous output of the medical liquid, the first one-way valve 15 opens, allowing the medical liquid to further enter the upper chamber from the main body 6. After the needle 8 passes through the top cover 11, the pressure in the lower chamber will be equal to the atmospheric pressure, and after the first one-way valve 15 is opened, part of the liquid in the main body 6 will flow out into the expandable and compressible container 9 in the upper chamber, causing the pressure in the main body 6 to decrease. At this time, the atmospheric pressure in the lower chamber will push open the second one-way valve 16, thereby facilitating the liquid in the main body 6 to further flow into the upper chamber through the first one-way valve 15.

[0049] When enough liquid enters the upper chamber, the user can start to press down the expandable and compressible container 9, thereby squeezing the liquid medicine into the needle 8 and the blood vessel.

[0050] When the expandable and compressible container 9 is squeezed back into the housing 7 and the injection is completed, the user can operate the locking component to move the isolation member 10 upward to pull the needle 8 out of the blood vessel. The user can then discard the entire injection device.

[0051] In the above process, if the needle is first lowered and inserted into the blood vessel, blood may be drawn up during the subsequent expansion of the expandable and compressible container 9, but this process is short-lived and the blood can be subsequently pressed back into the blood vessel by pressing the expandable and compressible container 9. This situation can be avoided if the expandable and compressible container 9 is first inflated and then the needle is inserted into the blood vessel. Alternatively, the expandable and compressible container 9 can be pressed down a short distance before the needle is lowered into the blood vessel.

[0052] In this invention, the drug solution is pre-stored in the bracelet, eliminating the traditional step of extracting the drug solution before injection and the inconvenience of operation in low-light environments. This invention completes the injection through a simple locking and pressing operation, significantly shortening the injection time and lowering the user threshold, which is crucial in emergency situations requiring rapid treatment. Furthermore, by designing the opening conditions of the first one-way valve and the compression space of the expandable and compressible container 9, the final drug solution injection dose can be controlled, which is of great significance for ensuring therapeutic efficacy and avoiding overdose.

[0053] According to some embodiments of the present invention, the bottom cover includes a partially pierceable portion 18 for the needle 8 to pass through, while also providing a passage for the lower chamber to communicate with the external atmosphere. This pierceable portion is pre-cut or thin-walled to reduce puncture resistance during needle puncture.

[0054] According to some embodiments of the present invention, the expandable and compressible container 9 can be compressed and folded into a bellows shape under pressure and then elastically expand when the pressure is released. The expandable and compressible container 9 is made of a medical-grade elastic polymer material. Its foldable structure significantly reduces its storage volume. When expanded, it generates negative pressure to draw in the medical solution. When compressed, it folds back into a bellows shape to compress the medical solution into the needle 8.

[0055] According to some embodiments of the present invention, the main body portion includes a plurality of zigzag folded portions, such as Figure 7 As shown in 6 ', it is located in the infusion tube 4 ', wherein 5 ' is the injection component. In this way, more amount of liquid medicine can be provided.

[0056] According to some embodiments of the present invention, the main body portion includes a plurality of U-shaped return portions, such as Figure 8 As shown in FIG6 ”, it is located in the infusion tube 4 ”, wherein 5 ” is the injection component. In this way, a larger amount of liquid medicine can be provided.

[0057] According to some embodiments of the present invention, a second one-way valve is located at the bottom of the upper chamber. This second one-way valve can be a diaphragm. When the pressure in the upper chamber reaches a certain value, it opens, allowing the liquid to flow into the injection channel in one direction. Conversely, when the pressure in the upper chamber reaches a certain value, the diaphragm adheres tightly to the upper chamber, preventing liquid backflow. As shown in the figure, the expandable and compressible container 9 shares its bottom portion with the upper chamber, thereby forming its own enclosed space. The location of the second one-way valve serves as both the upper chamber and the expandable and compressible container.

[0058] According to some embodiments of the present invention, the ultrasonic positioning and guiding device includes an ultrasonic control and processing device (which can be carried by the user or fixed to a certain position on the body), a plurality of first guiding devices 103 (only one is shown in the figure) located on the first slide rail 101, a plurality of first ultrasonic transmitters and a plurality of first ultrasonic receivers, and a plurality of second guiding devices 104 (only one is shown in the figure) located on the second slide rail 102, a plurality of second ultrasonic transmitters and a plurality of second ultrasonic receivers.

[0059] The ultrasonic control and processing device is used to control each ultrasonic transmission and reception operation, and obtain each ultrasonic data, and obtain characteristic data of a plurality of venous blood vessels based on each ultrasonic data.

[0060] The ultrasonic control and processing equipment uses the acquired characteristic data of multiple veins to determine the most suitable vessel for intravenous injection. Specifically, it analyzes parameters such as vessel diameter, depth, and blood flow velocity, and uses a weighted scoring algorithm to select the optimal puncture point.

[0061] According to some embodiments of the present invention, the first guiding device and the second guiding device respectively include electromagnets (103 and 104, see Figure 9 ) is used to attract the corresponding metal sheet on the injection component when the injection component moves to the blood vessel position determined by the ultrasonic positioning and guidance device. After determining the blood vessel position, the ultrasonic control and processing device can wirelessly control the electromagnet at that position to energize it, thereby generating electromagnetic force. A metal sheet or a small dot can be attached to the position corresponding to the needle tip on the injection component, and when the injection component slides into the position of the electromagnet on the track, it will be attracted. After determining the blood vessel position, the ultrasonic control and processing device can also wirelessly sense the electromagnet to generate magnetic force.

[0062] According to some embodiments of the present invention, the first guiding device and the second guiding device each include a vibration device for vibrating when the injection component moves to the blood vessel position determined by the ultrasound positioning and guiding device. The vibration device can generate tactile feedback with three adjustable frequencies.

[0063] According to some embodiments of the present invention, the first one-way valve opens when the pressure difference between the two sides exceeds a first pressure threshold, and the second one-way valve opens when the pressure difference between the two sides exceeds a second threshold. The first pressure threshold and the second pressure threshold may be different.

[0064] According to some embodiments of the present invention, the wristband includes multiple loops of infusion tubing that wrap around the arm and a main body. This increases the volume of liquid medicine. Furthermore, by controlling the size and degree of compression of the expandable and compressible container 9, the increased volume of liquid medicine can be drawn into the upper chamber. Furthermore, by providing anti-slip silicone stripes on the inner surface of the infusion tubing, the stability of the tubing can be increased.

[0065] According to some embodiments of the present invention, Figure 10 As shown, the locking component includes a circular column 220, an eccentric wheel 230, a retaining frame 240, a pressure rod 250, and a rotating fulcrum 260. The top of the retaining frame 240 is connected to one end of the isolation member. When the eccentric wheel 230 is rotated, the pressure rod lifts the circular column toward the top, thereby moving the isolation member at the other end to another position. When the eccentric wheel is rotated again, the isolation member returns to its original position. In addition, many other locking components are known in the art and are also applicable to this application.

[0066] According to some embodiments of the present invention, the wristband can have a handcuff-like structure, with the first and second slide rails positioned on the handcuffs, and the infusion tube and its main body being elastically extendable. When donning the wristband, the handcuff opening is opened, and the infusion tube and its main body are elastically extended, allowing for convenient donning. After donning, the handcuffs can be closed, and the slide rails remain continuous after closure, i.e., the slide rails continuously transition between the open and closed positions of the handcuffs.

[0067] According to some embodiments of the present invention, the second one-way valve is located at the bottom of the upper chamber.

[0068] It should be noted that although the structures and methods of operation of the apparatus of the present invention are described in a particular order in the accompanying drawings, this does not require or imply that the operations must be performed in that particular order, or that all of the illustrated operations must be performed to achieve the desired results. Rather, the steps depicted in the flowcharts may be performed in a different order. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into a single step, and / or a single step may be broken down into multiple steps.

[0069] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A medical injection device for use in a dim light environment, characterized in that: include: An annular, non-closed wristband comprising a first slide rail, a second slide rail, a first port, a second port, and a cavity; An injection component is connected to the first port and the second port, is located between the first port and the second port, and is movable on the first slide rail and the second slide rail; the injection component includes a housing, a needle, a spacer, a locking component, a first one-way valve, a second one-way valve, and an expandable and compressible container; the housing includes a top cover and a bottom cover; the spacer divides the interior of the housing into an upper chamber and a lower chamber, the needle is located on the spacer, and the interior of the needle is connected to the upper chamber; An infusion tube, comprising a main body for containing liquid medicine and positioned within the cavity of the bracelet; a first end of the infusion tube connected to a first side of the lower chamber, with a first one-way valve positioned between the lower chamber and the first end; a second end of the infusion tube connected to an expandable and compressible container in the upper chamber, with the second one-way valve positioned between the expandable and compressible container in the upper chamber and the second end; an ultrasonic positioning and guidance device for locating a suitable blood vessel on the arm and guiding the user to move the injection component to the blood vessel; The locking component is used to move the partition downward under the action of an external force until the needle penetrates the bottom cover and fixes the partition, and to release the partition to withdraw the needle from the blood vessel at the end of the injection; The top cover is used to compress the expandable and compressible container within the shell and can be opened under the action of external force to release the expandable and compressible container, thereby causing the second one-way valve to open accordingly and allowing the medical liquid to enter the expandable and compressible container from the main body; when the medical liquid in the main body outputs a predetermined volume, the first one-way valve opens to allow the medical liquid to further enter the upper chamber from the main body; the expanded expandable and compressible container can compress the medical liquid under the action of external force and press the medical liquid into the needle for injection.

2. The medical injection device according to claim 1, wherein The bottom cover comprises a local penetrable portion for the needle to pass through.

3. The medical injection device according to claim 1, wherein The expandable compression container can be compressed and folded into a bellows shape under pressure and expand elastically when the pressure is released.

4. The medical injection device according to claim 1, wherein The main body portion includes a plurality of U-shaped folded portions.

5. The medical injection device according to claim 1, wherein The main body portion includes a plurality of zigzag folded portions.

6. The medical injection device according to claim 1, wherein: The ultrasonic positioning and guiding device includes an ultrasonic control and processing device, a first guiding device located on the first slide rail, a first ultrasonic transmitter and a first ultrasonic receiver, and a second guiding device located on the second slide rail, a second ultrasonic transmitter and a second ultrasonic receiver; The ultrasonic control and processing device is used to control each ultrasonic transmission and reception operation, obtain each ultrasonic data, and obtain characteristic data of multiple venous blood vessels based on each ultrasonic data; the ultrasonic control and processing device determines the blood vessel most suitable for intravenous injection based on the characteristic data of the multiple venous blood vessels obtained.

7. The medical injection device according to claim 6, characterized in that The first guiding device and the second guiding device respectively include an electromagnet for attracting a corresponding metal piece or metal point on the injection component when the injection component moves to the blood vessel position determined by the ultrasound positioning and guiding device; or, The first guiding device and the second guiding device respectively include a vibration device for generating vibration when the injection component moves to the blood vessel position determined by the ultrasound positioning and guiding device.

8. The medical injection device according to claim 6, wherein: The first one-way valve opens when the pressure difference between the two sides exceeds a first pressure threshold, and the second one-way valve opens when the pressure difference between the two sides exceeds a second threshold.

9. The medical injection device according to claim 1, wherein: The wristband comprises a plurality of infusion tubes wrapped around the arm and a main body.

10. The medical injection device according to claim 1, wherein The wristband has a handcuff-like structure, the first slide rail and the second slide rail are located on the handcuffs, and the infusion tube and the main body thereof are elastically retractable.

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