Syringe composite boosting device and manufacturing method thereof

Abstract

A composite boosting device of an injector is composed of a hard framework and a soft rubber body, the hard framework comprises a base part and a handle part, the base part is provided with a barrel groove used for being connected with an injection barrel in an inserted mode, and the handle part is provided with a flange groove used for being connected with a flange of the injection barrel in an inserted mode and a plunger groove used for allowing a plunger rod to pass through. The upper surface of the handle part is provided with a positioning column protruding upwards, and the handle part is provided with a channel communicating the upper surface with the lower surface. The handle part is provided with upper surface soft rubber and lower surface soft rubber, and the upper surface soft rubber and the lower surface soft rubber are connected into a whole through channel soft rubber. During glue injection, the positioning column can be jacked, so that the handle part can bear glue injection impact and cannot deform. Meanwhile, liquid soft rubber can flow through the soft rubber channel and is fully distributed on the upper surface of the handle part as long as the liquid soft rubber is injected below the handle part. The soft rubber bodies on the upper surface and the lower surface are connected into a whole, are combined with the hard framework more tightly and are not prone to falling off. Meanwhile, when the plunger rod is pulled, the fingers are more comfortable through the soft rubber body, and the requirement for long-time use is met.

Description

Technical Field

[0003] The invention belongs to the technical field of medical devices, and in particular relates to a composite booster device for a syringe and a manufacturing method thereof. Background Art

[0005] In recent years, cosmetic skin filler surgery has become increasingly popular. When using a syringe to perform skin filler surgery, the syringe needs to be operated with one hand, first piercing the needle tip into the skin, repeatedly aspirating to determine whether it has pierced a blood vessel, and only after ensuring that it has not pierced a blood vessel can the injection be performed to complete the filler. In the case of frequent surgeries, repeated aspiration will become a burden on the operator, easily causing hand fatigue, thus affecting the effect of the surgery.

[0006] At present, some syringes are equipped with boosters on their flanges for hand gripping. When pushing and injecting, the booster fingers are more convenient for pulling out the piston rod. In order to make the fingers more comfortable, the booster will be provided with a soft colloid on its finger contact surface. The current soft colloid is generally made of elastic materials (such as TPE, Thermoplastic Elastomer, etc.) and attached to the surface of the support frame made of hard plastic material through a glue injection process. The handle of the booster is relatively thin and often has an ergonomic arc. Therefore, the handle is easily deformed due to the impact of the injection when the glue is injected. Therefore, the handle of the current booster is often only injected on one side, and the other side needs a template for stop positioning during the injection to ensure that the handle will not deform. Since the template occupies the injection space on the other side, the soft colloid cannot be formed on that side. Therefore, there is currently no booster device that injects glue and attaches soft colloids on both sides of the handle.

[0007] In addition, the current soft colloid and hard plastic skeleton are basically two independent structures, which are only held together by the bonding ability of the two materials. After long-term use and aging of the material, the soft colloid is easy to fall off, affecting the use effect. Summary of the invention

[0009] The present invention aims to solve the above problems of the prior art and provides a composite booster device for a syringe and a manufacturing method thereof. The soft colloid is distributed on the upper and lower surfaces of the handle, and the soft colloids at various locations are connected as one, so that the booster device is wrapped by the soft colloid at various locations, and the hand feel is more comfortable. In addition, the soft colloid is more tightly combined with the hard frame, is not easy to fall off, and will not impact and deform the handle during injection.

[0010] The composite booster device for syringes provided by the present invention is composed of a hard skeleton and a soft colloid. The hard skeleton includes a cylindrical base, a handle extending from one end of the base to both sides, the base is provided with a barrel groove for plugging in a syringe, the handle is provided with a flange groove for plugging in a flange of the syringe, and a plunger groove for passing a plunger rod, the barrel groove, the flange groove, and the plunger groove are connected together; the upper surface of the handle is provided with a positioning column protruding upward, and the handle is provided with a channel connecting the upper surface with the lower surface; the upper surface and the lower surface of the handle are respectively distributed with upper surface soft glue and lower surface soft glue, and the upper surface soft glue and the lower surface soft glue are connected as a whole through the channel soft glue located in the channel. When injecting glue, the present invention can use a template to support the end face of the positioning column, so that the handle can withstand the impact of injection and will not deform. At the same time, as long as liquid soft glue is injected under the handle, it can flow through the soft glue channel and cover the upper surface of the handle. After solidification, the soft colloids on the upper and lower surfaces are connected as a whole, and are more tightly combined with the hard frame, not easy to fall off, and have a long service life. At the same time, when pulling out the plunger rod, the fingers and the device of the present invention are in contact with the soft colloid, which is more comfortable to use and meets the needs of long-term use.

[0011] Preferably, the channel is a through hole that penetrates the upper and lower surfaces of the handle. The through hole structure allows the soft colloid to pass through the center of the handle, and the soft colloid and the hard skeleton are intertwined and more tightly combined.

[0012] Preferably, the channel is a through groove opened on the side of the handle and connecting the upper and lower surfaces of the handle, which can also connect the soft colloids on the upper and lower surfaces into one body and have an aesthetic appeal.

[0013] Preferably, the plunger groove is provided with a fence surrounding the plunger rod, the fence is integrally formed on the upper surface of the handle, and its height matches the height of the positioning column. The fence structure can ensure that the soft colloid on the upper surface will not be worn due to the collision of the plunger rod, and together with the positioning column, it limits the thickness of the soft colloid on the upper surface, making the thickness of the soft colloid on the upper surface more uniform. At the same time, it is more aesthetically pleasing.

[0014] Preferably, the outer surface of the base is coated with base soft glue, and is connected with the lower surface soft glue as a whole. In this way, not only the range of soft glue that fingers touch is increased, but also the area of ​​soft glue wrapped around the hard frame is increased, so that the two are more closely combined.

[0015] Preferably, a retaining ring is provided at one end of the base away from the handle, and the outer surface of the retaining ring is also wrapped with a retaining ring soft rubber, and is connected to the base soft rubber as a whole. In this way, not only the range of soft colloid contacted by the fingers is increased, but also the area of ​​the soft colloid wrapped around the hard frame is increased, so that the two are more closely combined. At the same time, the retaining ring can also be used as a force application point for the fingers, so that the plunger rod is away from the syringe barrel, and the operation of pulling out the plunger rod can be completed with one hand.

[0016] Preferably, two baffle rubbers are symmetrically distributed with the barrel groove as the center between the lower surface of the handle and the baffle ring, and the baffle rubber is connected with the baffle ring rubber, the base rubber, and the lower surface rubber. In this way, not only the range of soft colloids that can be touched by fingers is increased, but also the area of ​​the soft colloids wrapping the hard frame is increased, so that the two are more closely combined. At the same time, it can prevent the hard frame at the barrel groove from scratching hands.

[0017] Preferably, the lower surface of the handle is provided with an embedding groove, in which is distributed an embedding soft glue, which is connected to the lower surface soft glue as a whole. In this way, not only the range of the soft glue that the finger contacts is increased, but also the area of ​​the soft glue wrapping the hard frame is increased, so that the two are more closely combined. At the same time, it is also more aesthetically pleasing.

[0018] Preferably, the positioning posts and the soft rubber channels are symmetrically distributed on both sides of the handle. The positioning posts and the soft rubber channels are distributed at the most deformable position of the handle, which not only increases the overall strength but also makes it more aesthetically pleasing.

[0019] The present invention also provides a method for manufacturing a composite booster device for a syringe, comprising the following steps:

[0020] Step 1: Injection molding of the hard skeleton is completed;

[0021] Step 2: Use the template to press against the upper end surface of the positioning column, and inject liquid soft glue from the bottom of the handle so that it is distributed on the lower surface of the handle and the outer surface of the base, and flows through the channel to be distributed on the upper surface of the handle;

[0022] Step 3: Wait until the liquid soft glue solidifies to form a soft glue body, and the production is completed.

[0023] The manufacturing method of the present invention can effectively prevent deformation of the handle. At the same time, only one place is needed to inject glue, so that the upper and lower surfaces of the handle can be covered with soft colloid, which greatly improves the processing efficiency and greatly improves the comfort of use. At the same time, the overall bonding strength is better and the service life is increased.

[0024] The composite booster device for syringes and the manufacturing method thereof provided by the present invention have at least the following advantages:

[0025] 1. The soft colloid of the present invention has a larger wrapping area, which not only ensures comfort but also relieves fatigue caused by long-term one-handed use of the syringe; at the same time, it has a more complex shape and extends multiple surfaces in different directions, so that it is more closely combined with the hard skeleton and has a longer service life.

[0026] 2. The present invention only needs one injection of glue to cover the upper and lower surfaces of the handle with soft colloid, and the handle will not be deformed due to the impact of injection of glue.

[0027] 3. The appearance of the invention is clearly layered and more aesthetic, which greatly relieves the tension during surgery and is conducive to promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0030] Figure 2 Schematic diagram of the three-dimensional structure of the hard skeleton of the present invention;

[0031] Figure 3 It is a schematic diagram of the three-dimensional structure of the soft colloid of the present invention;

[0032] Figure 4 It is a longitudinal half-section structure schematic diagram of the present invention;

[0033] Figure 5 It is a schematic diagram of a half-section structure in a horizontal direction of the present invention;

[0034] Figure 6 It is a schematic diagram of the three-dimensional structure when the present invention is used;

[0035] Figure 7 It is a schematic diagram of the three-dimensional structure of Example 2 of the present invention;

[0036] Figure 8 This is a schematic diagram of the three-dimensional structure of the hard skeleton of Example 2 of the present invention.

[0037] Description of reference numerals:

[0038] Hard skeleton 1, base 11, handle 12, positioning column 13, channel 14, enclosure 15, embedding groove 16, retaining ring 17, soft colloid 2, upper surface soft rubber 21, lower surface soft rubber 22, base soft rubber 23, channel soft rubber 24, retaining ring soft rubber 25, baffle soft rubber 26, embedding groove soft rubber 27, barrel groove 3, flange groove 4, plunger groove 5, plunger rod 6, injection barrel 7, injection barrel flange 71. DETAILED DESCRIPTION

[0040] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0041] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0042] Example 1: Figure 1 to Figure 6 As shown, this composite syringe booster device is composed of a hard frame 1 and a soft colloid 2. The hard frame 1 is made of hard plastic materials such as ABS, and the soft colloid 2 is made of elastic soft rubber materials such as TPE. The hard frame 1 is made of ABS material as a whole, and its frame forms a cylindrical base 11. The base 11 has a notch to form a barrel groove 3 for inserting the syringe 7. The handle 12 also has a notch to form a flange groove 4 for inserting the syringe flange 71, and a plunger groove 5 for passing the plunger rod 6. The barrel groove 3, the flange groove 4, and the plunger groove 5 are connected together so that the syringe can pass through the above three grooves, as shown in FIG. Figure 6 As shown. The main body of the handle 12 extends from the upper end of the flange groove 4 frame to both sides, and the main body has a certain curvature, which conforms to ergonomics. The curvature can be bent downward as shown in the figure, or it can be bent upward, and no further details are given here.

[0043] Both sides of the upper surface of the handle 12 are injection molded to form upwardly protruding positioning columns 13, and the upper end surface of the positioning columns 13 is almost parallel to the upper surface of the handle, which is more convenient for positioning. And cylindrical channels 14 that connect the upper surface and the lower surface are provided on both sides of the handle 12. The upper surface and the lower surface of the handle 12 are respectively distributed with an upper surface soft glue 21 and a lower surface soft glue 22, and the upper surface soft glue 21 and the lower surface soft glue 22 are connected as a whole through a channel soft glue 24 located in the channel 14. In this embodiment, the channel soft glue 24 is located inside and cannot be seen under normal circumstances. Therefore, the appearance of the device of the present invention forms a three-layer structure of upper surface soft glue 21, hard skeleton 12, and lower surface soft glue 22 with clear layers, which is more beautiful in appearance and helps to reduce tension during surgery. This embodiment is a three-layer structure, of course, it can also be made into a five-layer structure, a seven-layer structure, and so on. The plunger groove 5 is provided with a baffle 15 surrounding the plunger rod 6. The baffle 15 is integrally formed on the upper surface of the handle 12, and its height matches the height of the positioning column 13, and the heights are substantially the same, so that the thickness of the upper surface soft rubber 21 can be processed to be consistent and uniform. The upper end surface of the baffle 15 is also substantially parallel to the upper surface of the handle.

[0044] The outer surface of the base 11 is coated with a base soft rubber 23. A retaining ring 17 is provided at one end of the base 11 away from the handle 12, and the outer surface of the retaining ring 17 is also coated with a retaining ring soft rubber 25. Two baffle soft rubbers 26 are provided between the lower surface of the handle 12 and the retaining ring 17 and are symmetrically distributed around the barrel groove 3. An embedding groove 16 is provided on the lower surface of the handle 12, and an embedding groove soft rubber 27 is distributed in the embedding groove 16.

[0045] like Figure 2 As shown, the groove soft glue 27 is connected with the baffle soft glue 26, the retaining ring soft glue 25, the base soft glue 23, the upper surface soft glue 21, and the lower surface soft glue 22 to form a soft glue body 2, so that the soft glue body 2 has a stronger structural wrapping property and is more tightly combined with the hard skeleton 1. The two form a form of you in me, I in you, and it is not easy to fall off.

[0046] Example 2: Figure 7 , Figure 8 As shown, the difference from embodiment 1 is that the channel 14 is a through groove opened on the side of the handle 12 and connecting the upper and lower surfaces of the handle. Of course, the through groove can be opened at any position on the side of the handle 12 without affecting the use effect.

[0047] The present invention provides a method for manufacturing the above-mentioned composite booster device for syringes, comprising the following steps:

[0048] Step 1: Injection molding of the hard skeleton 1 is completed;

[0049] Step 2: Use the template to press against the upper end surface of the positioning column 13, and inject liquid soft glue from the bottom of the handle 12 so that it is distributed on the lower surface of the handle 12, the outer surface of the base 11 and the retaining ring 17, and flows through the channel 14 to be distributed on the upper surface of the handle 12; and distributed between the lower surface of the handle 12 and the retaining ring 17 to form a baffle soft glue 26.

[0050] Step 3: Wait until the liquid soft glue solidifies to form a soft glue body 2, and the production is completed.

[0051] The manufacturing method of the present invention can ensure that the handle 12 will not be deformed due to impact. At the same time, the entire soft colloid body 2 can be manufactured by only one injection of glue, which is wrapped around the upper and lower surfaces of the handle 12, greatly improving the comfort during use.

[0052] The method of using the composite booster device for syringes of the present invention is as follows:

[0053] First, if Figure 6 As shown, the device of the present invention is installed on a syringe, so that the syringe barrel 7 of the syringe is located in the barrel groove 3, the syringe barrel flange 71 is located in the flange groove 4, and the plunger rod 6 is located in the plunger groove 5.

[0054] When pushing the plunger rod 6 forward, the thumb presses the upper surface of the head of the plunger rod 6, and the other fingers are against the lower surface of the handle 12 and are respectively located on both sides of the base 11. The plunger rod 6 can be pushed by applying force with the fingers.

[0055] When the plunger rod 6 is withdrawn backward, the thumb is pressed against the lower surface of the head of the plunger rod 6, and the other fingers are pressed against the upper surface of the handle 12 or the upper surface of the retaining ring 17. The plunger rod 6 can be withdrawn by applying force with the fingers.

[0056] In the above method of use, the fingers contact with the device of the present invention through the elastic soft rubber, which greatly alleviates finger fatigue, meets the needs of long-term use in cosmetic skin filler surgery, and is conducive to promotion.

[0057] When the syringe needs to be replaced, the device of the present invention can be conveniently unplugged from the syringe and plugged into another syringe. The hard skeleton 1 can ensure that it will not be deformed after multiple plugging and unplugging, thereby meeting the needs of long-term use. In addition, during the plugging and unplugging process, the soft colloid 2 can also ensure that the hand will not be hurt, and the use effect is good.

Claims

1. A composite booster device for a syringe, characterized in that: The invention comprises a hard frame (1) and a soft colloid (2), wherein the hard frame (1) comprises a cylindrical base (11) and a handle (12) extending from one end of the base (11) to both sides, wherein the base (11) is provided with a barrel groove (3) for inserting a syringe barrel (7), and the handle (12) is provided with a flange groove (4) for inserting a syringe barrel flange (71) and a plunger groove (5) for passing a plunger rod (6), wherein the barrel groove (3) and the flange groove (4) are provided with a plurality of protruding ... , and the plunger groove (5) are connected together; the upper surface of the handle (12) is provided with a positioning column (13) protruding upward, and the handle (12) is provided with a channel (14) connecting the upper surface with the lower surface; the upper surface and the lower surface of the handle (12) are respectively distributed with an upper surface soft glue (21) and a lower surface soft glue (22), and the upper surface soft glue (21) and the lower surface soft glue (22) are connected as a whole through a channel soft glue (24) located in the channel (14).

2. The compound booster device for syringes according to claim 1, characterized in that: The channel (14) is a through hole that penetrates the upper and lower surfaces of the handle (12).

3. The compound booster device for syringes according to claim 1, characterized in that: The channel (14) is a through groove opened on the side of the handle (12) and connecting the upper and lower surfaces of the handle.

4. The compound booster device for syringes according to claim 1, characterized in that: The plunger groove (5) is provided with a baffle (15) surrounding the plunger rod (6); the baffle (15) is integrally formed on the upper surface of the handle (12), and its height matches the height of the positioning column (13).

5. The compound booster device for syringes according to claim 1, characterized in that: The outer surface of the base (11) is coated with base soft glue (23) and is integrally connected with the lower surface soft glue (22).

6. The compound booster device for syringes according to claim 5, characterized in that: A retaining ring (17) is provided at one end of the base (11) away from the handle (12); the outer surface of the retaining ring (17) is also coated with retaining ring soft rubber (25) and is integrally connected with the base soft rubber (23).

7. The compound booster device for syringes according to claim 6, characterized in that: Two baffle rubbers (26) are provided between the lower surface of the handle (12) and the baffle ring (17) and are symmetrically distributed around the barrel groove (3). The baffle rubbers (26) are integrally connected with the baffle ring rubber (25), the base rubber (23), and the lower surface rubber (22).

8. The compound booster device for syringes according to claim 7, characterized in that: The lower surface of the handle (12) is provided with an embedding groove (16), and an embedding soft rubber (27) is distributed in the embedding groove (16), and the embedding soft rubber (27) is connected to the lower surface soft rubber (22) as a whole.

9. The compound booster device for syringes according to claim 1, characterized in that: The positioning column (13) and the channel (14) are symmetrically distributed on both sides of the handle (12).

10. A method for manufacturing a composite booster device for a syringe according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: injection molding the hard skeleton (1); Step 2: Using a template to press against the upper end surface of the positioning column (13), injecting liquid soft glue from the bottom of the handle (12) so that it is distributed on the lower surface of the handle (12), the outer surface of the base (11), and flows through the channel (14) to be distributed on the upper surface of the handle (12); Step 3: Wait until the liquid soft glue solidifies to form a soft glue body (2), and the production is completed.

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