Gel filling device

Abstract

The utility model belongs to the technical field of filling, and provides a gel filling device which comprises a support, a feeding component, a vacuumizing component, a three-way valve and a pre-filling injector, the feeding component, the vacuumizing component and the pre-filling injector are all connected with the three-way valve, the feeding component comprises a filling assembly and a pressing piece, and the pressing piece is connected with the three-way valve. The pressing part is connected with the filling assembly, the filling assembly is fixed to the support, the pressing part is pressed to enable gel in the filling assembly to enter the pre-filled syringe through the three-way valve, the vacuumizing part comprises an air exhaust assembly and a drawing part, the drawing part is connected with the air exhaust assembly, and the air exhaust assembly is connected with the three-way valve. The air exhaust assembly is fixed to the support, and the drawing piece is drawn to enable the air exhaust assembly to exhaust air in the pre-filled syringe through the three-way valve. The device disclosed by the utility model can be operated by a single person and a single hand, and manpower consumption during vacuumizing and gel filling can be reduced.

Description

Technical Field

[0001] This utility model belongs to the field of filling technology, specifically relating to a gel filling device. Background Technology

[0002] Sodium hyaluronate is an important biomaterial with wide applications in medicine, biomimetic materials, and health products. Sodium hyaluronate gel, as a novel injectable material, is widely used in skin filling, guided regeneration, and fat grafting. In the production and research and development of injectable cross-linked sodium hyaluronate gel (CHA), the filling process is an indispensable step in the production of gel products.

[0003] In laboratory preparation or small-batch production, existing filling fixtures include a fixture body with three grooves for placing a vacuum injector, a feeding injector, and a pre-filling injector, respectively. However, the three injectors on the device are not completely fixed, which means that in actual operation, one person still needs to operate with both hands or two people need to work together when vacuuming or filling. One person's operation is inefficient, and two people's operation requires more manpower. Moreover, the manpower consumption is high when vacuuming and squeezing gel, which is not conducive to the batch filling of gel. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a gel filling device that can be operated by one person with one hand and can reduce the manpower consumption during vacuuming and gel extrusion.

[0005] The technical solution of this utility model includes a support, a feeding component, a vacuuming component, a three-way valve, and a pre-filled syringe. The feeding component and the vacuuming component are both located on the same side of the support. The feeding component, the vacuuming component, and the pre-filled syringe are all connected to the three-way valve. The feeding component includes a filling assembly and a pressing component. The pressing component is connected to the filling assembly, and the filling assembly is fixed on the support. The pressing component presses to allow the gel in the filling assembly to enter the pre-filled syringe through the three-way valve. The vacuuming component includes an air extraction assembly and a pulling component. The pulling component is connected to the air extraction assembly, and the air extraction assembly is fixed on the support. The pulling component pulls to allow the air extraction assembly to extract the air from the pre-filled syringe through the three-way valve.

[0006] Furthermore, the filling assembly includes a filling bracket, a clamp, and a feeding syringe. The filling bracket is connected to the support, the clamp is detachably connected to the filling bracket, the clamp is used to fix the feeding syringe, the injection port of the feeding syringe is connected to the three-way valve, and the push rod of the feeding syringe is connected to the pressing member.

[0007] Furthermore, the caliper includes an outer clamp and an inner clamp, which are connected by a first fastener. The first fastener adjusts the clamping size of the outer and inner clamps to hold various sizes of feed syringes.

[0008] Furthermore, both the outer clamp and the inner clamp are groove-shaped, the outer clamp is provided with a sliding groove, and the inner clamp is slidably connected in the sliding groove.

[0009] Furthermore, the pressing component is a manual pressing component, which includes a filling chute, a filling connecting rod, a filling clamp, and a pressing handle. The filling chute is connected to the support, one end of the filling connecting rod is hinged to the filling bracket, and the other end of the filling connecting rod is hinged to one end of the pressing handle. The end of the pressing handle away from the filling connecting rod is rotatably connected to the filling clamp, and the filling clamp is slidably connected to the filling chute. The filling clamp is connected to the push rod of the feeding syringe. Pressing the pressing handle causes the filling clamp to slide along the filling chute, thereby driving the push rod of the feeding syringe to move.

[0010] Furthermore, the pressing component can also be an automatic pressing component, which includes a filling telescopic cylinder. The fixed end of the filling telescopic cylinder is connected to the support, and the telescopic end of the filling telescopic cylinder is connected to the push rod of the feeding syringe to drive the push rod of the feeding syringe to move.

[0011] Furthermore, the suction assembly includes a suction bracket, a suction cylinder, and a piston rod. The suction bracket is connected to the support, the suction cylinder is connected to the suction bracket, one end of the piston rod is inserted into the suction cylinder and the piston rod is slidably and sealed to the suction cylinder, and the other end of the piston rod is connected to the pull-out component.

[0012] Furthermore, the pull-out component is a manual pull-out component, which includes a pull-out slide groove, a pull-out connecting rod, a pull-out clamping plate, and a pull-out handle. The pull-out slide groove is connected to the support, one end of the pull-out connecting rod is hinged to the air extraction bracket, and the other end of the pull-out connecting rod is hinged to one end of the pull-out handle. The end of the pull-out handle away from the pull-out connecting rod is rotatably connected to the pull-out clamping plate, and the pull-out clamping plate is slidably connected to the pull-out slide groove. The pull-out clamping plate is connected to the piston rod. Pulling the pull-out handle causes the pull-out clamping plate to slide along the pull-out slide groove, thereby driving the piston rod to move.

[0013] Furthermore, the pull-out component can also be an automatic pull-out component, which includes a pull-out telescopic cylinder. The fixed end of the pull-out telescopic cylinder is connected to the support, and the telescopic end of the pull-out telescopic cylinder is connected to the piston rod to drive the piston rod to move.

[0014] Furthermore, the suction bracket and the suction cylinder are integrally formed.

[0015] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0016] 1. First, place the gel to be filled into the filling assembly. After completion, connect the filling assembly and the vacuum assembly to the support. At the same time, connect the filling assembly to the pressing component and the vacuum assembly to the pulling component. After fixing the filling assembly, pressing component, vacuum assembly, and pulling component, connect the three-way valve to the filling assembly. Then, connect the vacuum assembly and the pre-filled syringe to the other two ends of the three-way valve. During filling, first adjust the three-way valve to connect the vacuum assembly and the pre-filled syringe. Pull the vacuum assembly with the pulling component to extract the air from the pre-filled syringe. Then adjust the three-way valve to connect the filling assembly and the pre-filled syringe. Use the pressing component to squeeze the gel in the filling assembly into the pre-filled syringe. After filling, remove the pre-filled syringe and replace it with a new pre-filled syringe. Compared with the prior art, the device of this utility model can be operated by one person with one hand and can reduce the manpower consumption when vacuuming and squeezing gel.

[0017] 2. The clamping diameter can be adjusted by the cooperation of the outer clamp, inner clamp and the first fastener to accommodate different specifications of feed syringes.

[0018] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a gel filling device according to one embodiment of the present invention;

[0020] Figure 2 This is a rear view of a gel filling device according to one embodiment of the present invention;

[0021] Figure 3 This is an exploded view of the caliper structure according to one embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the caliper structure according to one embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the filling support structure according to one embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the suction bracket and suction cylinder structure of one embodiment of the present utility model.

[0025] Figure label:

[0026] 1. Support; 2. Three-way valve; 3. Pre-filled syringe; 4. Filling bracket; 5. Clamp; 52. Outer clamp; 51. Inner clamp; 53. First fastener; 6. Feed syringe; 7. Filling chute; 8. Filling connecting rod; 9. Filling clamp; 10. Press handle; 11. Push rod; 12. Suction bracket; 13. Suction cylinder; 14. Piston rod; 15. Pull-out chute; 16. Pull-out connecting rod; 17. Pull-out clamp; 18. Pull-out handle; 19. Bolt slot; 20. Second fastener. Detailed Implementation

[0027] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of 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.

[0029] In the description of the embodiments of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] like Figures 1 to 6 As shown, this utility model provides a gel filling device, including a support 1, a feeding component, a vacuuming component, a three-way valve 2, and a pre-filled syringe 3. The feeding component and the vacuuming component are both located on the same side of the support 1. The feeding component, the vacuuming component, and the pre-filled syringe 3 are all connected to the three-way valve 2. The feeding component includes a filling assembly and a pressing component. The pressing component is connected to the filling assembly. The filling assembly is fixed on the support 1. The pressing component presses to allow the gel in the filling assembly to enter the pre-filled syringe 3 through the three-way valve 2. The vacuuming component includes an air extraction component and a pulling component. The pulling component is connected to the air extraction component. The air extraction component is fixed on the support 1. The pulling component pulls to allow the air extraction component to extract the air from the pre-filled syringe 3 through the three-way valve 2.

[0031] First, place the gel to be filled into the filling assembly. After completion, connect the filling assembly and the vacuum assembly to the support 1. Simultaneously, connect the filling assembly to the pressing component and the vacuum assembly to the pulling component. After fixing the filling assembly, pressing component, vacuum assembly, and pulling component, connect the three-way valve 2 to the filling assembly. Then, connect the vacuum assembly and the pre-filled syringe 3 to the other two ends of the three-way valve 2. During filling, first adjust the three-way valve 2 to connect the vacuum assembly and the pre-filled syringe 3. Pull the vacuum assembly through the pulling component to extract the air from the pre-filled syringe 3. Then adjust the three-way valve 2 to connect the filling assembly and the pre-filled syringe 3. Squeeze the gel in the filling assembly into the pre-filled syringe 3 through the pressing component. After filling, remove the pre-filled syringe 3 and replace it with a new pre-filled syringe 3. Compared with the prior art, this utility model can be operated by one person with one hand and can reduce the manpower consumption when vacuuming and squeezing gel.

[0032] In the embodiments provided by this utility model, the filling assembly includes a filling bracket 4, a clamp 5, and a feeding syringe 6. The filling bracket 4 is connected to the support 1, the clamp 5 is detachably connected to the filling bracket 4, the clamp 5 is used to fix the feeding syringe 6, the injection port of the feeding syringe 6 is connected to the three-way valve 2, and the push rod 11 of the feeding syringe 6 is connected to the pressing member.

[0033] It is understandable that the detachable connection between the caliper 5 and the filling bracket 4 is to separate the feed syringe 6 from the filling bracket 4, making it easier to add gel to the feed syringe 6.

[0034] Furthermore, when the gel is added into the feed syringe 6, a lot of air bubbles will be generated, so the feed syringe 6 needs to be treated to remove air bubbles.

[0035] In the embodiments provided by this utility model, the caliper 5 includes an outer caliper 52 and an inner caliper 51, which are connected by a first fastener 53.

[0036] The first fastener 53 is one of bolts, screws, pins, and studs.

[0037] It is understood that the outer clamp 52 and the inner clamp 51 are connected by the first fastener 53, and the clamping size of the outer clamp 52 and the inner clamp 51 can be adjusted to suit various sizes of feed syringes 6.

[0038] In the embodiments provided by this utility model, both the outer clamp 52 and the inner clamp 51 are groove-shaped, the outer clamp 52 is provided with a sliding groove, and the inner clamp 51 is slidably connected in the sliding groove.

[0039] In the embodiments provided by this utility model, the pressing component is a manual pressing component, which includes a filling chute 7, a filling connecting rod 8, a filling clamping plate 9, and a pressing handle 10. The filling chute 7 is connected to the support 1. One end of the filling connecting rod 8 is hinged to the filling bracket 4, and the other end of the filling connecting rod 8 is hinged to one end of the pressing handle 10. The end of the pressing handle 10 away from the filling connecting rod 8 is rotatably connected to the filling clamping plate 9, and the filling clamping plate 9 is slidably connected to the filling chute 7. The filling clamping plate 9 is connected to the push rod 11 of the feeding syringe 6. Pressing the pressing handle 10 causes the filling clamping plate 9 to slide along the filling chute 7, thereby driving the push rod 11 of the feeding syringe 6 to move.

[0040] Since the filling support 4, the filling connecting rod 8 and the pressing handle 10 are hinged together, pressing the pressing handle 10 can cause the filling clamp 9 to move along the length of the filling chute 7.

[0041] In the embodiments provided by this utility model, the pressing component can also be an automatic pressing component. The automatic pressing component includes a filling telescopic cylinder. The fixed end of the filling telescopic cylinder is connected to the support 1, and the telescopic end of the filling telescopic cylinder is connected to the push rod 11 of the feeding syringe 6 to drive the push rod 11 of the feeding syringe 6 to move.

[0042] It is understandable that when gel filling is required, the push rod 11 of the feeding syringe 6 can be squeezed by the telescopic cylinder. It should be noted that the telescopic cylinder's extension speed is adjustable, specifically set according to the size of the pre-filled syringe 3. When the pre-filled syringe 3 has a larger capacity, the extension speed of the telescopic cylinder can be increased; when the pre-filled syringe 3 has a smaller capacity, the extension speed of the telescopic cylinder can be decreased. The specific speed is determined based on the capacity of the pre-filled syringe 3.

[0043] In the embodiments provided by this utility model, the air extraction assembly includes an air extraction bracket 12, an air extraction cylinder 13, and a piston rod 14. The air extraction bracket 12 is connected to the support 1, the air extraction cylinder 13 is connected to the air extraction bracket 12, one end of the piston rod 14 is inserted into the air extraction cylinder 13, and the piston rod 14 is slidably connected to the air extraction cylinder 13 in a sealed manner. The other end of the piston rod 14 is connected to the pull-out component.

[0044] In the embodiments provided by this utility model, the pull-out component is a manual pull-out component, which includes a pull-out groove 15, a pull-out connecting rod 16, a pull-out clamping plate 17, and a pull-out handle 18. The pull-out groove 15 is connected to the support 1. One end of the pull-out connecting rod 16 is hinged to the air extraction bracket 12, and the other end of the pull-out connecting rod 16 is hinged to one end of the pull-out handle 18. The end of the pull-out handle 18 away from the pull-out connecting rod 16 is rotatably connected to the pull-out clamping plate 17, and the pull-out clamping plate 17 is slidably connected to the pull-out groove 15. The pull-out clamping plate 17 is connected to the piston rod 14. Pulling the pull-out handle 18 causes the pull-out clamping plate 17 to slide along the pull-out groove 15, thereby driving the piston rod 14 to move.

[0045] It should be noted that after the vacuuming component evacuates a pre-filled syringe 3, the three-way valve 2 connects the filling assembly and the pre-filled syringe 3. Because the vacuum cylinder 13 is under negative pressure, the piston rod 14 will automatically move towards the end closer to the three-way valve 2, thereby moving the pull handle 18 towards the end closer to the three-way valve 2. When replacing the pre-filled syringe 3, the pull handle 18 can be pulled again to perform the vacuuming operation. When filling multiple pre-filled syringes 3, a large amount of air accumulates in the vacuum cylinder 13, and the piston rod 14 cannot automatically return to its original position. In this case, the pull handle 18 can be pushed to move the piston rod 14 towards the end closer to the three-way valve 2, thus expelling the air from the vacuum cylinder 13.

[0046] The handle linkage structure saves manpower and reduces costs. At the same time, compared with the traditional manual pull-out push rod 11, the action is stable and does not affect the vacuuming efficiency. The entire device has a simple structure.

[0047] In the embodiments provided by this utility model, the pull-out component is an automatic pull-out component, which includes a pull-out telescopic cylinder. The fixed end of the pull-out telescopic cylinder is connected to the support 1, and the telescopic end of the pull-out telescopic cylinder is connected to the piston rod 14 to drive the piston rod 14 to move.

[0048] In the embodiments provided by this utility model, the air extraction bracket 12 and the air extraction cylinder 13 are integrally formed.

[0049] In the embodiments provided by this utility model, both the filling component and the vacuuming component are slidably connected to the support 1 to adjust the position of the filling component and the vacuuming component.

[0050] It is understandable that when different specifications of feeding syringes 6 are used, the length of the feeding syringes 6 is inconsistent. Therefore, it is necessary to adjust the position of the filling bracket 4 so that the feeding syringe 6 can be connected to the three-way valve 2, while the three-way valve 2 is connected to the vacuum cylinder 13. If the position of the filling components cannot be adjusted, it is easy to cause the three-way valve 2 and the vacuum cylinder 13 to be not on the same horizontal plane after the three-way valve 2 and the feeding syringe 6 are connected, which will affect the work efficiency and product quality.

[0051] Specifically, the support 1 is provided with an adjustable bolt groove 19 to adjust the position of the filling bracket 4 and the suction bracket 12 by means of the second fastener 20.

[0052] The second fastener 20 is one of bolts, screws, pins, and studs.

[0053] The procedure is as follows: Select a 100 ml disposable syringe as the feed syringe 6. The gel is cross-linked sodium hyaluronate gel for injection (CHA). Remove the plunger 11 from the feed syringe 6 and attach a rotating plug to the injection port of the feed syringe 6. Fill the feed syringe 6 with gel, then place it in a double planetary defoamer to defoam until no visible bubbles are visible under natural light. After defoaming, insert the plunger 11 into the feed syringe 6 and use calipers 5 to secure it. Replace the rotating plug with a three-way valve 2, then connect calipers 5 to the filling bracket 4. Finally, connect the plunger 11 of the feed syringe 6 to the pressing element. Adjust the position of the filling bracket 4 so that the remaining two ports of the three-way valve 2 are connected to the air inlet of the vacuum cylinder 13 and the feed inlet of the pre-filled syringe 3, respectively. Adjust the three-way valve 2 to connect the vacuum cylinder 13 and the pre-filled syringe 3. Pull the vacuum assembly using the pull-out member to evacuate the air from the pre-filled syringe 3. Then adjust the three-way valve 2 to connect the feed syringe 6 and the pre-filled syringe 3. Press the press-out member to squeeze the gel from the filling assembly into the pre-filled syringe 3. After filling to the required volume, adjust the three-way valve 2 to connect the vacuum cylinder 13 and the pre-filled syringe 3. Then remove the pre-filled syringe 3 and replace it with a new one. It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0054] Although embodiments of this utility model have been disclosed above, it is not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for this utility model. Other modifications can be readily implemented by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and examples shown and described herein.

Claims

1. A gel filling device, characterized in that, It includes a support (1), a feeding component, a vacuuming component, a three-way valve (2), and a pre-filled syringe (3). The feeding component and the vacuuming component are located on the same side of the support (1). The feeding component, the vacuuming component, and the pre-filled syringe (3) are all connected to the three-way valve (2). The feeding component includes a filling assembly and a pressing component. The pressing component is connected to the filling assembly. The filling assembly is fixed on the support (1). The pressing component presses to allow the gel in the filling assembly to enter the pre-filled syringe (3) through the three-way valve (2). The vacuuming component includes an air extraction assembly and a pull-out component. The pull-out component is connected to the air extraction assembly. The air extraction assembly is fixed on the support (1). The pull-out component is pulled to allow the air extraction assembly to extract the air from the pre-filled syringe (3) through the three-way valve (2).

2. The gel filling device as described in claim 1, characterized in that, The filling assembly includes a filling bracket (4), a clamp (5), and a feeding syringe (6). The filling bracket (4) is connected to the support (1). The clamp (5) is detachably connected to the filling bracket (4). The clamp (5) is used to fix the feeding syringe (6). The injection port of the feeding syringe (6) is connected to the three-way valve (2). The push rod (11) of the feeding syringe (6) is connected to the pressing member.

3. The gel filling device as described in claim 2, characterized in that, The caliper (5) includes an outer clamp (52) and an inner clamp (51), which are connected by a first fastener (53). The first fastener (53) adjusts the clamping size of the outer clamp (52) and the inner clamp (51) to clamp various sizes of feed syringes (6).

4. The gel filling device as described in claim 3, characterized in that, Both the outer clamp (52) and the inner clamp (51) are groove-shaped. The outer clamp (52) is provided with a sliding groove, and the inner clamp (51) is slidably connected in the sliding groove.

5. A gel filling device as described in claim 2, characterized in that, The pressing component is a manual pressing component, which includes a filling chute (7), a filling connecting rod (8), a filling clamp (9), and a pressing handle (10). The filling chute (7) is connected to the support (1). One end of the filling connecting rod (8) is hinged to the filling bracket (4). The other end of the filling connecting rod (8) is hinged to one end of the pressing handle (10). The end of the pressing handle (10) away from the filling connecting rod (8) is rotatably connected to the filling clamp (9). The filling clamp (9) is slidably connected to the filling chute (7). The filling clamp (9) is connected to the push rod (11) of the feeding syringe (6). Pressing the pressing handle (10) causes the filling clamp (9) to slide along the filling chute (7), thereby driving the push rod (11) of the feeding syringe (6) to move.

6. A gel filling device as described in claim 2, characterized in that, The pressing component is an automatic pressing component, which includes a filling telescopic cylinder. The fixed end of the filling telescopic cylinder is connected to the support (1), and the telescopic end of the filling telescopic cylinder is connected to the push rod (11) of the feeding syringe (6) to drive the push rod (11) of the feeding syringe (6) to move.

7. The gel filling device as described in claim 1, characterized in that, The air extraction assembly includes an air extraction bracket (12), an air extraction cylinder (13), and a piston rod (14); The suction bracket (12) is connected to the support (1), the suction cylinder (13) is connected to the suction bracket (12), one end of the piston rod (14) is inserted into the suction cylinder (13), and the piston rod (14) is slidably connected to the suction cylinder (13), and the other end of the piston rod (14) is connected to the pull-out component.

8. A gel filling apparatus as described in claim 7, characterized in that, The pull-out component is a manual pull-out component, which includes a pull-out slide groove (15), a pull-out connecting rod (16), a pull-out clamp (17), and a pull-out handle (18). The pull-out slide (15) is connected to the support (1). One end of the pull-out connecting rod (16) is hinged to the air extraction bracket (12). The other end of the pull-out connecting rod (16) is hinged to one end of the pull-out handle (18). The end of the pull-out handle (18) away from the pull-out connecting rod (16) is rotatably connected to the pull-out clamp (17). The pull-out clamp (17) is slidably connected to the pull-out slide (15). The pull-out clamp (17) is connected to the piston rod (14). Pulling the pull-out handle (18) causes the pull-out clamp (17) to slide along the pull-out slide (15), thereby driving the piston rod (14) to move.

9. A gel filling device as described in claim 7, characterized in that, The pull-out component is an automatic pull-out component, which includes a pull-out telescopic cylinder. The fixed end of the pull-out telescopic cylinder is connected to the support (1), and the telescopic end of the pull-out telescopic cylinder is connected to the piston rod (14) to drive the piston rod (14) to move.

10. A gel filling device as described in claim 7, characterized in that, The suction bracket (12) and the suction cylinder (13) are integrally formed.

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