A gel extrusion device

Abstract

The utility model discloses a gel extruding device, include: extruder, the inner chamber end portion fixed limit block of extruder, the both sides end portion sliding connection of extruder has lock block, the inboard of lock block is fixed with spring, the terminal of spring is fixed with limit block, the bottom movable joint of extruder has the top plate, the top of top plate is fixed with lock hole, the bottom fixed with gel pipe of top plate, through telescopic link structure, can push rod in non - use state shrink to the shortest position, and gel pipe is packed side by side, and the longitudinal size of device is greatly shortened, and the packaging material consumption is reduced. Simultaneously reduce the space occupancy in the process of warehousing, logistics and display, improve unit volume storage efficiency, indirectly reduce comprehensive cost, avoid the risk that traditional long piston rod is easy to bend, deformation or fracture, ensure the safety and stability of product.

Description

Technical Field

[0001] This utility model relates to the field of gel technology, specifically to a gel extrusion device. Background Technology

[0002] In the field of gynecological medicine, gel preparations are widely used for the treatment and prevention of various diseases due to their advantages such as ease of use, localized action, and high bioavailability. These gel products are typically packaged in piston-type tubular containers, and the gel is extruded through a dispensing head by pushing a piston rod to achieve drug delivery.

[0003] Currently, most commercially available gynecological gel tubes are pre-filled with sufficient gel, and their internal piston rods are initially in a significantly extended position to ensure effective pushing stroke and complete drug expulsion. However, this design results in a larger overall longitudinal dimension of the product, which not only increases the amount of material used per tube but also occupies more space during warehousing, stacking, logistics, and pharmacy display, reducing storage efficiency per unit volume and indirectly increasing costs. Furthermore, the longer piston rod is prone to bending, deformation, or even breakage due to external impacts during distribution, potentially leading to damage to the packaging seal or internal contamination, affecting product safety and stability.

[0004] Therefore, there is an urgent need for a new type of gel extrusion device that can effectively reduce the overall structural size when not in use, while ensuring sufficient drug delivery, making it easier to package, transport and store, and improving operational reliability and safety. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gel extrusion device, comprising: an extruder, a limiting block fixed at the inner end of the extruder, locking blocks slidably connected to both ends of the extruder, a spring fixed to the inner side of the locking block, the end of the spring being fixed to the limiting block, a top plate movably connected to the bottom end of the extruder, a connecting block fixed to the top of the top plate, locking holes on both sides of the connecting block, a gel tube fixed to the bottom end of the top plate, a limiting ring fixed to the end of the gel tube, a sleeve provided inside the extruder, an elastic locking piece fixed to the inner end of the sleeve, a telescopic rod slidably connected to the inner cavity of the sleeve, a plurality of positioning holes evenly provided on the body of the telescopic rod, a sliding groove provided not far from one side of the positioning hole, and a hand pressure plate fixed to the top of the telescopic rod.

[0006] As a preferred embodiment of this utility model, the connecting block has a locking hole at the center of each of its four sides, the bottom of the locking block has an inclined wedge-shaped structure, and the locking hole fits into the locking block, so that the locking block can be inserted into and locked in the locking hole.

[0007] As a preferred embodiment of this utility model, a through hole is provided at the center of the top plate, a removable top sealing plug is provided at the top of the through hole, and a removable bottom sealing plug is provided at the gel outlet at the bottom of the gel tube.

[0008] As a preferred embodiment of this utility model, the outer diameter of the sleeve is adapted to the central hole of the limiting block, the sleeve passes through the central hole of the limiting block and is slidably connected thereto, and a lower pressure plate is fixed at the bottom end of the sleeve.

[0009] As a preferred technical solution of this utility model, the middle part of the elastic locking piece is provided with an inwardly protruding V-shaped elastic buckle. The V-shaped elastic buckle can be engaged in the positioning hole to achieve vertical locking, and can slide in the slide groove to achieve vertical movement of the telescopic rod.

[0010] As a preferred embodiment of this utility model, a piston is provided at the top of the inner cavity of the gel tube, the piston is slidably and sealingly connected to the inner wall of the gel tube, and the bottom shape of the piston is adapted to the shape of the bottom of the inner cavity of the gel tube.

[0011] As a preferred embodiment of this invention, auxiliary rings for assisting gripping are fixedly provided on the outer walls of both ends of the extruder.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) Significantly reduce storage and transportation space: The telescopic rod structure can retract the push rod to its shortest position when not in use and package it side by side with the gel tube, which greatly shortens the longitudinal dimension of the device and reduces the amount of packaging materials used. At the same time, it reduces the space occupancy rate in warehousing, logistics and display processes, improves the storage efficiency per unit volume, indirectly reduces the overall cost, avoids the risk of bending, deformation or breakage of traditional long piston rods, and ensures the safety and stability of the product.

[0014] (2) Precise and adjustable dosage, safe to use: By using the elastic locking plate to engage with positioning holes of different heights, the push rod stroke can be preset and locked, thereby realizing quantitative drug administration, ensuring the accuracy and consistency of each squeezed dose, avoiding waste or insufficient dosage. The front end of the gel tube is equipped with a limiting ring, which can effectively control the insertion depth, prevent excessive insertion causing discomfort or cross-contamination, and improve the user's sense of security and comfort.

[0015] (3) Convenient and hygienic operation: The gel tube and the extruder adopt a quick-locking design with locking holes evenly distributed on all four sides. No alignment is required during installation; assembly can be completed simply by pressing down. The separation process after use is equally simple. The gel tube can be discarded without contact by pressing the locking blocks on both sides simultaneously with one hand, which greatly improves the convenience and hygiene of use.

[0016] (4) Improved compatibility and economy: The detachable design of the extruder and multiple sets of gel tubes enables the reuse of the main components, reduces material waste, lowers user costs, and facilitates the replacement of different types of gel formulations, thus expanding the applicability of the device. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic front sectional view of the present invention;

[0020] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the structure of the lock block of this utility model;

[0022] Figure 5 This is a three-dimensional cross-sectional view of the connecting block of this utility model;

[0023] Figure 6 This is a three-dimensional cross-sectional view of the sleeve of this utility model.

[0024] In the diagram: 1. Extruder; 2. Auxiliary ring; 3. Limiting block; 4. Locking block; 5. Spring; 6. Sleeve; 7. Elastic locking plate; 8. Telescopic rod; 9. Positioning hole; 10. Slide groove; 11. Hand pressure plate; 12. Connecting block; 13. Locking hole; 14. Top plate; 15. Gel tube; 16. Limiting ring; 17. Through hole; 18. Top sealing plug; 19. Piston; 20. Bottom sealing plug; 21. Lower pressure plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example

[0027] Please see Figure 1-6The present invention provides the following technical solution: a gel extrusion device, comprising: an extruder 1, a limiting block 3 fixed at the inner end of the extruder 1, locking blocks 4 slidably connected to both ends of the extruder 1, a spring 5 fixed inside the locking block 4, the end of the spring 5 being fixed to the limiting block 3, a top plate 14 movably connected to the bottom end of the extruder 1, a connecting block 12 fixed at the top end of the top plate 14, locking holes 13 on both sides of the connecting block 12, a gel tube 15 fixed at the bottom end of the top plate 14, a limiting ring 16 fixed at the end of the gel tube 15, a sleeve 6 provided inside the extruder 1, an elastic locking piece 7 fixed at the inner end of the sleeve 6, a telescopic rod 8 slidably connected to the inner cavity of the sleeve 6, a plurality of positioning holes 9 evenly provided on the body of the telescopic rod 8, a sliding groove 10 not far from one side of the positioning hole 9, and a hand pressure plate 11 fixed at the top end of the telescopic rod 8.

[0028] In order to achieve rapid, non-aligned assembly of the extruder 1 and the gel tube 15 and improve the ease of assembly and connection stability of the device, in this embodiment, as a preferred technical solution of the present invention, the four sides of the connecting block 12 are provided with locking holes 13, the bottom end of the locking block 4 is in an inclined wedge shape, and the locking holes 13 fit with the locking block 4, so that the locking block 4 can be inserted into and locked in the locking holes 13.

[0029] In order to ensure the airtightness of the gel inside the gel tube 15 during storage and transportation, prevent gel deterioration or contamination, and meet the need for quick opening during use, in this embodiment, as a preferred technical solution of the present invention, a through hole 17 is provided at the center of the top plate 14, a removable top sealing plug 18 is provided at the top of the through hole 17, and a removable bottom sealing plug 20 is provided at the gel outlet at the bottom of the gel tube 15.

[0030] In order to ensure that the sleeve 6 slides stably in the vertical direction within the extruder 1 and avoid deviation in the transmission of extrusion force caused by the offset of the sleeve 6, and at the same time achieve precise pushing of the piston 19 by the lower pressure plate 21, in this embodiment, as a preferred technical solution of the present invention, the outer diameter of the sleeve 6 is adapted to the central hole of the limiting block 3, the sleeve 6 passes through the central hole of the limiting block 3 and is slidably connected to it, and the lower pressure plate 21 is fixed at the bottom end of the sleeve 6.

[0031] In order to achieve the stroke adjustment and locking of the telescopic rod 8 to meet the needs of different single-dose administration, and at the same time ensure the smooth movement of the telescopic rod 8 during the adjustment process, in this embodiment, as a preferred technical solution of the present invention, the elastic locking piece 7 is provided with an inwardly protruding V-shaped elastic buckle in the middle. The V-shaped elastic buckle can be engaged in the positioning hole 9 to achieve vertical locking, and can slide in the slide groove 10 to achieve vertical movement of the telescopic rod 8.

[0032] In order to ensure that the piston 19 fully compresses the gel inside the gel tube 15 and avoids gel residue, and at the same time prevents gel leakage through sliding sealing connection and ensures the accuracy of drug dosage, in this embodiment, as a preferred technical solution of the present invention, a piston 19 is provided at the top end of the inner cavity of the gel tube 15. The piston 19 is slidably and sealingly connected to the inner wall of the gel tube 15, and the bottom shape of the piston 19 is adapted to the shape of the bottom of the inner cavity of the gel tube 15.

[0033] In order to improve the stability of the operator's grip on the device, avoid the operation deviation caused by the device slipping during drug administration, and adapt to the single-handed operation habit and enhance the ease of use, in this embodiment, as a preferred technical solution of the present invention, auxiliary rings 2 for assisting grip are fixedly provided on the outer walls of both ends of the extruder 1.

[0034] In summary, with the help of the above-described technical solution of this utility model,

[0035] Working principle: This utility model consists of a set of extruders 1 and multiple gel tubes 15 packaged together. First, the operator applies pressure to the hand plate 11 and rotates the telescopic rod 8 horizontally, causing the elastic locking piece 7 fixed in the inner cavity of the sleeve 6 to disengage from the current positioning hole 9 and rotate into the adjacent slide groove 10. At this time, the telescopic rod 8 can be pulled upward along the axial direction. After adjusting to a suitable height according to the medication needs, the telescopic rod 8 is rotated in the opposite direction to make the target positioning hole 9 re-align and engage with the V-shaped buckle of the elastic locking piece 7, thereby achieving stroke locking and accurately setting the single dosage.

[0036] Then open the top of the sealed bag of gel tube 15 and remove the top sealing plug 18. Hold gel tube 15 through the sealed bag with one hand and hold extruder 1 with the other hand, aligning its bottom end with the connecting block 12 and pressing it down. The connecting block 12 is pressed against the wedge-shaped structure at the bottom of the locking block 4, pushing the locking block 4 inward and squeezing the spring 5 until the connecting block 12 is fully inserted into the bottom of the extruder 1. At this time, the wedge-shaped structure of the locking block 4 coincides with the position of the locking hole 13. Under the elastic force of the spring 5, the locking block 4 is inserted into the locking hole 13, realizing the quick installation of extruder 1 and gel tube 15. Since there are locking holes 13 in all four directions, locking can be completed without deliberately aligning the holes.

[0037] At this point, removing the packaging bag and bottom sealing plug 20 allows for one-handed operation. The user holds the auxiliary ring 2 with their thumb and middle finger, placing the front end of the gel tube 15 at the application site. The upper limit ring 16 effectively controls the insertion depth, preventing contamination. Then, pressing down on the hand pressure plate 11 with the index finger pushes the telescopic rod 8 and sleeve 6 downwards, which in turn pushes the piston 19 inside the gel tube 15 downwards via the lower pressure plate 21, smoothly extruding the gel. After application, simultaneously pressing the locking blocks 4 on both sides releases the locking of the connecting block 12, allowing the gel tube 15 to detach under gravity, achieving contactless disposal that is hygienic and safe. The extruder 1 can still be reused.

[0038] Finally, it should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gel extrusion apparatus, characterized in that, include: An extruder (1) has a limiting block (3) fixed at the inner end of its cavity. Locking blocks (4) are slidably connected to both ends of the extruder (1). A spring (5) is fixed to the inner side of the locking block (4), and the end of the spring (5) is fixed to the limiting block (3). A top plate (14) is movably connected to the bottom end of the extruder (1). A connecting block (12) is fixed to the top of the top plate (14). Locking holes (13) are opened on both sides of the connecting block (12). The top plate (14) has… A gel tube (15) is fixed at the bottom end, and a limit ring (16) is fixed at the end of the gel tube (15). A sleeve (6) is provided inside the extruder (1). An elastic locking piece (7) is fixed at the end of the inner cavity of the sleeve (6). A telescopic rod (8) is slidably connected to the inner cavity of the sleeve (6). Several sets of positioning holes (9) are evenly opened on the body of the telescopic rod (8). A sliding groove (10) is opened not far from one side of the positioning hole (9). A hand pressure plate (11) is fixed at the top of the telescopic rod (8).

2. The gel extrusion apparatus according to claim 1, characterized in that: The four sides of the connecting block (12) are provided with lock holes (13). The bottom end of the lock block (4) is an inclined wedge structure, and the lock holes (13) fit into the lock block (4), so that the lock block (4) can be inserted into and locked in the lock holes (13).

3. The gel extrusion apparatus according to claim 1, characterized in that: A through hole (17) is provided at the center of the top plate (14), and a removable top sealing plug (18) is provided at the top of the through hole (17). A removable bottom sealing plug (20) is provided at the bottom outlet of the gel tube (15).

4. The gel extrusion apparatus according to claim 1, characterized in that: The outer diameter of the sleeve (6) is adapted to the center hole of the limiting block (3). The sleeve (6) passes through the center hole of the limiting block (3) and is slidably connected to it. The bottom end of the sleeve (6) is fixed with a lower pressure plate (21).

5. The gel extrusion apparatus according to claim 1, characterized in that: The elastic locking piece (7) is provided with an inwardly protruding V-shaped elastic buckle in the middle. The V-shaped elastic buckle can be inserted into the positioning hole (9) to achieve vertical locking, and can slide in the slide groove (10) to achieve vertical movement of the telescopic rod (8).

6. The gel extrusion apparatus according to claim 1, characterized in that: A piston (19) is provided at the top of the inner cavity of the gel tube (15). The piston (19) is slidably and sealed to the inner wall of the gel tube (15), and the bottom shape of the piston (19) is adapted to the shape of the bottom of the inner cavity of the gel tube (15).

7. The gel extrusion apparatus according to claim 1, characterized in that: The extruder (1) has auxiliary rings (2) fixedly installed on the outer walls of both ends for assisting gripping.

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