Needle-free syringe and method of using the same

Abstract

The present invention provides a needle-free syringe and a method of using the same, including a disposable sterile ampoule, an injection pen and a reset box; the disposable sterile ampoule includes: a bottle body, a push-pull rod, a piston head and a protective member; holes are opened at both ends of the bottle body, and an injection liquid spray hole is set at one end; a through hole is set on the protective member, and the size and shape of the through hole match the size and shape of the outer wall of the bottle body, and the protective member can be sleeved on the outside of the bottle body when injecting liquid medicine; the injection pen is placed in the reset box. The present invention can use the existing syringe production line to mass produce ampoules and realize the automatic assembly of the push-pull rod and the bottle body, which greatly improves the production efficiency and reduces the user's use cost. At the same time, the reset box of the present invention can directly accommodate the injection pen in a non-pressurized state, and can be easily inverted in the reset box to realize the reset function of the injection pen, without the need to prepare an assembly box.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a needle-free syringe and a method for using the same. Background Art

[0002] The incidence of diabetes is increasing day by day, and it has become the third largest killer after cardiovascular and cerebrovascular diseases and tumors. At present, insulin injection therapy is considered to be an effective method for treating diabetes. Intensive treatment through insulin injection can make patients' blood sugar, blood lipids, blood pressure and BMI meet the standards. At present, insulin pumps and insulin pens are mostly used to infuse insulin. The existing insulin pens on the market can be loaded with a refill containing insulin liquid and a dosing piston. When infusing, the pen is adjusted to the required amount, and then the device is manually pushed to inject the liquid into the human body through the needle. This infusion method will cause pain during injection, and nodules, redness, swelling or bruises will occur at the injection site.

[0003] Needle-free syringes use high-pressure jets to instantly penetrate the skin and deliver drugs such as insulin to the subcutaneous tissue. The drugs diffuse and distribute under the skin, taking effect in a shorter time and being better absorbed. Moreover, since there are no needles, they will not cause harm to the patient and are not prone to infection. Currently, needle-free syringes on the market are mostly used with a pressure-providing device in combination with a disposable sterile ampoule. However, as a disposable product, the ampoule has a complex structure, is expensive, and requires a large amount of medication for patients, resulting in a high cost of use. In addition, the existing reset box has a single function, which is to reset the injection pen. If the injection pen is placed in the reset box and closed, the injection pen in the box is always in a pressurized state, which damages the components of the injection pen. Therefore, an assembly box is required to store the injection pen. Summary of the invention

[0004] The purpose of the present invention is to provide a needle-free syringe to solve the problem of complex ampoule bottle structure in the prior art, reduce the difficulty of mass production, thereby improving production efficiency and reducing user costs. At the same time, the injection pen can be placed directly in the reset box without the need to prepare an assembly box, which is convenient for both the injection pen to be installed and the overall product to be carried.

[0005] The technical solution for achieving the purpose of the present invention is:

[0006] Needle-free injectors, including disposable sterile ampoules, injection pens, and resetting boxes;

[0007] The disposable sterile ampoule bottle comprises:

[0008] A bottle body, wherein holes are opened at both ends of the bottle body and an injection liquid spray hole is arranged at one end;

[0009] A push-pull rod, one end of which extends into the bottle body and can move axially along the bottle body;

[0010] A piston head, the piston head is arranged at one end of the push-pull rod extending into the bottle body and is sealed and fitted with the inner wall of the bottle body;

[0011] A protective member, wherein a through hole is provided on the protective member, the size and shape of the through hole match the size and shape of the outer wall of the bottle body, and the protective member can be sleeved on the outside of the bottle body;

[0012] Wherein, the injection pen is accommodated in the reset box.

[0013] Furthermore, the diameter of the bottle body of the disposable sterile ampoule bottle at the end away from the injection liquid spray hole is larger than the diameter of the end where the injection liquid spray hole is set.

[0014] Furthermore, a groove is provided on the outer wall of the bottle body of the disposable sterile ampoule bottle for assembling a transfer device during use.

[0015] Furthermore, the bottle body of the disposable sterile ampoule bottle is made of PP material, and the protective part is made of metal material.

[0016] Furthermore, a fixing portion is provided at one end of the protective member, and the fixing portion is used to be assembled and fixed with the injection pen during use.

[0017] Furthermore, the reset box includes a box cover, a base and a reset assembly; the box cover is rotatably connected to one end of the base; the reset assembly is arranged in the base for pressurized reset of the injection pen after the kinetic energy of the injection pen is released; a first groove is arranged on the base for accommodating the injection pen.

[0018] Furthermore, a reminder device is provided on the box cover of the reset box.

[0019] Furthermore, the reminder device also includes a communication module.

[0020] How to use a needle-free syringe:

[0021] Turn the injection pen placed in the reset box upside down, use the reset box to pressurize the injection pen to reset it, and then take out the injection pen;

[0022] Using the disposable sterile ampoule to extract the injection solution;

[0023] Insert the push-pull rod of the disposable sterile ampoule into the injection pen, sleeve the protective member on the outside of the bottle body, and fix the protective member to the injection pen;

[0024] Align the injection liquid spray hole of the disposable sterile ampoule bottle with the position where injection is required, and press the injection pen.

[0025] Furthermore, the communication module of the reminder device on the reset box sends the usage record to the server.

[0026] By adopting the above technical solution, the present invention has the following beneficial effects:

[0027] (1) The present invention solves the problem of complex ampoule structure in the prior art, has a more compact and beautiful appearance, reduces the difficulty of mass production, can use the existing syringe production line for mass production and realize automatic assembly of the push-pull rod and the bottle body, greatly improves production efficiency and reduces user costs. At the same time, the reset box of the present invention can directly accommodate the injection pen in a non-pressurized state; by turning the placement direction of the injection pen, the reset function of the injection pen can be easily realized, and there is no need to prepare an assembly box, which is convenient for both the injection pen to be loaded and the overall product to be carried.

[0028] (2) The outer wall of the bottle body of the present invention is provided with a groove, which can quickly connect and disconnect the transfer device, and is easy to install.

[0029] (3) The bottle body of the present invention is made of PP material, which has lower production cost, and the protective part is made of metal material. Since the bottle body needs to withstand very high pressure instantly during the injection process, the use of a metal protective cover can increase the pressure resistance of the bottle body.

[0030] (4) The protective member of the present invention is provided with a fixing portion, which can be assembled and fixed with the injection pen and limit the position of the protective member, which is easy to use. At the same time, it can limit the position of the safety device in the injection pen to prevent misoperation caused by improper installation of the ampoule bottle.

[0031] (5) A reminder device is provided on the box cover of the present invention, which can be used to set the time for injecting the medicine, so as to remind the patient to inject the medicine on time and prevent forgetting. At the same time, it is convenient for the patient to check the date and time, switch the time display mode according to the usage habits, and there is a reminder sound at the hour.

[0032] (6) The present invention is also provided with a communication module for sending usage records to the background to facilitate monitoring of patient usage. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings, wherein:

[0034] Figure 1 It is a schematic diagram of the structure of a disposable sterile ampoule bottle of the present invention.

[0035] Figure 2 It is a schematic diagram of the structure of the injection pen of the present invention.

[0036] Figure 3 It is a schematic diagram of the installation of the injection pen and the disposable sterile ampoule bottle of the present invention.

[0037] Figure 4 It is a schematic diagram of the structure of the reset box of the present invention.

[0038] Figure 5 This is a partial enlarged view of the groove of the bottle body of the present invention.

[0039] Figure 6 It is the front view of the reminder device of the present invention.

[0040] Figure 7 It is a bottom view of the reminder device of the present invention.

[0041] Figure 8 A state diagram is used for the present invention.

[0042] The reference numerals in the accompanying drawings are:

[0043] Bottle body 1, injection liquid spray hole 1-1, bottle body groove 1-2;

[0044] Push-pull rod 2;

[0045] Piston head 3;

[0046] Protective member 4, through hole 4-1, limiting mechanism 4-2;

[0047] Fuse assembly 5, external fuse 5-1, internal fuse 5-2, boss 5-2-1, silicone pad 5-3;

[0048] Injection button 6, avoidance groove 6-1;

[0049] Box cover 7;

[0050] Base 8, first groove 8-1;

[0051] Reset assembly 9, pressure rod seat 9-1, second groove 9-1-1, pressure rod 9-2;

[0052] Reminding device 10, box body 10-1, display screen 10-2, circuit board 10-3, battery 10-4, display screen dust cover 10-5, function button 10-6. DETAILED DESCRIPTION

[0053] (Example 1)

[0054] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0055] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0057] In the description of the embodiments of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is conventionally placed when used, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] (Example 1)

[0060] like Figures 1 to 4 Needle-free syringe as shown, comprising: a sterile disposable ampoule, see Figure 1 ; Injection pen, see Figure 2 and Figure 3 ; Reset box, see Figure 4 ;

[0061] like Figure 1 The disposable sterile ampoule shown comprises: a bottle body 1, a push-pull rod 2, a piston head 3 and a protective member 4.

[0062] The bottle body 1 is made of PP material, with lower production cost, with holes at both ends, and an injection liquid spray hole 1-1 is set at one end; the diameter of the bottle body 1 at the end away from the injection liquid spray hole 1-1 is larger than the diameter of the end where the injection liquid spray hole 1-1 is set; the front section outer wall close to the injection liquid spray hole 1-1 is a 6% Luer outer cone, which is compatible with the protective member 4 and can be closely matched with the transfer device, and the sealing performance is better; Figure 5 As shown, the outer wall of the bottle body 1 is provided with a bottle body groove 1-2, which is used to assemble the transfer device when in use, and the transfer device can be quickly connected and disconnected, which is convenient for installation. The outer surface of the bottle body 1 is provided with a scale to facilitate accurate control of the volume of the absorbed liquid medicine.

[0063] One end of the push-pull rod 2 extends into the bottle body 1 and can move axially along the bottle body 1 .

[0064] The piston head 3 is arranged at one end of the push-pull rod 2 extending into the bottle body 1 and is sealed against the inner wall of the bottle body 1 .

[0065] Since the bottle body 1 needs to withstand very high pressure instantly during the injection process, the protective member 4 of this embodiment is made of metal to increase the pressure resistance of the bottle body. The protective member 4 is provided with a through hole 4-1, the size and shape of which match the size and shape of the outer wall of the bottle body 1, and can be sleeved on the outside of the bottle body 1; an outer thread is provided on the outer wall of one end of the protective member 4, which is used to assemble and fix with the injection pen when in use, and an anti-slip pattern is also provided on the outer wall of the protective member 4 to increase friction and facilitate installation and removal; a limiting mechanism 4-2 is also provided on the protective member 4 to limit the position where the protective member 4 is assembled and fixed with the injection pen when in use.

[0066] like Figure 2 and Figure 3 The injection pen shown in the figure is provided with a safety assembly 5 and an injection button 6 at its front end, and the safety assembly 5 includes an external safety 5-1, an internal safety 5-2 and a silicone pad 5-3. The external safety 5-1 is sleeved on the internal safety 5-2. The internal safety 5-2 is sleeved on the front end of the pen barrel of the injection pen. The silicone pad 5-3 is provided between the internal safety 5-2 and the pen barrel, and the front end of the silicone pad 5-3 abuts against the step on the inner wall of the internal safety 5-2, and the rear end of the silicone pad 5-3 abuts against the step on the outer circumferential surface of the pen barrel. When the external safety 5-1 slides under the injection button 6, it can prevent the injection pen from firing. When carrying the injection pen, press the Figure 2 Directions shown are placed directly on Figure 4 In the reset box, when pressurized, remove the injection pen and place it upside down as shown in the figure. Figure 4 in the reset box shown.

[0067] like Figure 3As shown, an escape groove 6-1 is provided on the lower end surface of the injection button 6, and a boss 5-2-1 matching the escape groove 6-1 on the injection button 6 is provided at the right end of the inner safety 5-2. When the protective member 4 is not installed, the boss 5-2-1 is staggered from the escape groove 6-1 under the action of the elastic force of the rubber pad 5-3, so that when the disposable sterile ampoule bottle is not installed, it cannot be fired even if the outer safety 5-1 is opened.

[0068] When the protective member 4 is installed, the limiting mechanism 4-2 presses the inner safety device 5-2, so that the inner safety device 5-2 overcomes the elastic force of the silicone pad 5-3 and moves to the right. When the protective member 4 is installed in place, the inner safety device 5-2 just moves to the end position. At this time, the outer safety device 5-1 is pulled to the left, and the boss 5-2-1 corresponds to the position of the avoidance groove 6-1 of the injection button 6. The injection can be completed by pressing the injection button 6. This structural design enables the injection pen to have a double-layer safety, which can completely avoid misoperation.

[0069] like Figure 4 The reset box shown includes a box cover 7, a base 8, a reset assembly 9 and a reminder device 10; the box cover 7 and one end of the base 8 are rotatably connected; the reset assembly 9 is arranged in the base 8, and is used for pressurized reset of the injection pen of the needle-free syringe after the kinetic energy is released; the reminder device 10 is arranged on the box cover 7.

[0070] The base 8 is provided with a first groove 8-1 for accommodating an injection pen of a needle-free syringe. Closing the reset box can directly accommodate the injection pen in a non-pressurized state; opening the reset box, turning the injection pen 180°, and closing the reset box again can easily realize the reset function of the injection pen, without the need to prepare an assembly box, which is convenient for both the injection pen to be loaded and the overall product to be carried.

[0071] The reset assembly 9 includes a pressure rod seat 9-1 and a pressure rod 9-2 arranged on the base 8; the pressure rod 9-2 is used to pressurize the injection pen of the needle-free syringe; a second groove 9-1-1 is set at one end of the pressure rod seat 9-1 close to the pressure rod 9-2, and the shape and size of the second groove 9-1-1 match the injection pen of the needle-free syringe, and is used to place the tail end of the injection pen of the needle-free syringe, so that the injection pen can be placed stably to avoid falling from the box and damaging the injection pen components.

[0072] like Figure 6 and Figure 7As shown, the reminder device 10 includes a box body 10-1, a display screen 10-2, a circuit board 10-3, a battery 10-4, a display screen dust cover 10-5 and function buttons 10-6. The box body 10-1 and the box cover 7 are detachably installed by means of buckles and slots, which is convenient for loading and unloading the box body 10-1, repairing and replacing the reminder device parts; the display screen 10-2 is arranged on the box body 10-1, which can intuitively display the time, date and related information of the injection solution, and is easy to use; the circuit board 10-3 and the battery 10-4 are both arranged in the box body 10-1; the circuit board 10-3 includes a clock circuit and a communication module, and the communication module can be a Bluetooth module, which is used to send the usage record to the background and receive the background information through the mobile phone APP, so as to monitor and query the patient's usage; the battery 10-4 is a button battery, which supplies power to the display screen 10-2 and the circuit on the circuit board 10-3; the display screen dust cover 10-5 is used to protect the display screen from wear and tear; the function button 10-6 can set the time of injection of the solution and switch different display functions. The reminder device 10 has an alarm reminder function, which is convenient for reminding patients to inject the medicine on time to prevent forgetting. It also has a date query function and a 24H / 12H time display format switching function, which can facilitate patients to switch the time display mode and query the date and time according to their usage habits. There is a time reporting function that can be turned off at the hour to meet the usage habits of different groups of people.

[0073] The following is a detailed description of the method of use of Example 1 using insulin injection as an example:

[0074] 1. Turn the injection pen placed in the reset box upside down, close the reset box, and use the reset box to pressurize the injection pen to reset it;

[0075] 2. Install the transfer device on the bottle body groove 1-2 of the bottle body 1. The transfer device is fully matched with the front section of the bottle body 1. Pull the push-pull rod 2 to absorb the liquid medicine and remove the transfer device.

[0076] 3. Take out the reset injection pen from the reset box, insert the push-pull rod 2 of the disposable sterile ampoule bottle with liquid medicine into the injection pen, and sleeve the protective member 4 on the outside of the bottle body 1. The protective member 4 is installed on the front end of the injection pen through a threaded connection.

[0077] 4. If Figure 8 As shown, align the injection liquid spray hole 1-1 of the disposable sterile ampoule bottle with the position where injection is required, pull down the safety device 5, and when the safety device 5 is pulled down to the limit mechanism 4-2, press the injection button 6, and the injection pen can be effectively activated to prevent misoperation. At this time, the drug liquid is sprayed out from the injection liquid spray hole 1-1 to form an extremely fine liquid column, which instantly penetrates the skin and reaches the subcutaneous tissue to be diffused and absorbed in a spray state. The drug liquid is absorbed faster and takes effect quickly, which is closer to the insulin secretion pattern under the physiological state of the human body.

[0078] Example 1 solves the problem of complex ampoule bottle structure in the prior art, has a more compact and beautiful appearance, reduces the difficulty of mass production, can use the existing syringe production line for mass production and realize the automatic assembly of the push-pull rod and the bottle body, greatly improves production efficiency, and reduces user costs. At the same time, the reset box of the present invention can directly accommodate the injection pen in a non-pressurized state; by turning the placement direction of the injection pen, the reset function of the injection pen can be easily realized, and there is no need to prepare an assembly box, which is convenient for the injection pen to be loaded and the overall product to be carried.

[0079] (Example 2)

[0080] The structure and function of Example 2 are basically the same as those of Example 1, except that the battery 10 - 4 used in the reminder device 10 is a rechargeable battery, which is more environmentally friendly and convenient to use.

[0081] (Example 3)

[0082] The structure and function of Example 3 are basically the same as those of Example 1, except that the display screen 10-2 of the reminder device 10 has a touch screen function, the function button 10-6 is cancelled, and the appearance is more beautiful and elegant.

[0083] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A needle-free syringe, comprising a disposable sterile ampoule, an injection pen and a reset box; characterized in that: The disposable sterile ampoule bottle comprises: A bottle body, wherein holes are opened at both ends of the bottle body and an injection liquid spray hole is arranged at one end; A push-pull rod, one end of which extends into the bottle body and can move axially along the bottle body; A piston head, the piston head is arranged at one end of the push-pull rod extending into the bottle body and is sealed and fitted with the inner wall of the bottle body; A protective member, wherein a through hole is provided on the protective member, the size and shape of the through hole match the size and shape of the outer wall of the bottle body, and the protective member can be sleeved on the outside of the bottle body; Wherein, the injection pen is accommodated in the reset box.

2. The needle-free injector according to claim 1, characterized in that: The diameter of the end of the bottle body of the disposable sterile ampoule bottle away from the injection liquid spray hole is larger than the diameter of the end where the injection liquid spray hole is set.

3. The needle-free injector according to claim 1, characterized in that: A bottle body groove is arranged on the outer wall of the bottle body of the disposable sterile ampoule bottle for assembling a transfer device during use.

4. The needle-free injector according to claim 1, characterized in that: The bottle body of the disposable sterile ampoule bottle is made of PP material, and the protective part is made of metal material.

5. The needle-free injector according to claim 1, characterized in that: A fixing portion is arranged at one end of the protection member, and the fixing portion is used for being assembled and fixed with the injection pen during use.

6. The needle-free injector according to claim 1, characterized in that: The reset box includes a box cover, a base and a reset assembly; the box cover is rotatably connected to one end of the base; the reset assembly is arranged in the base and is used for pressurized reset of the injection pen after the kinetic energy of the injection pen is released; a first groove is arranged on the base for accommodating the injection pen.

7. The needle-free injector according to claim 6, characterized in that: A reminder device is arranged on the box cover of the reset box.

8. The needle-free injector according to claim 7, characterized in that: The reminder device also includes a communication module.

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