Integrated fluid gelatin mixed injection device
By using an integrated fluid gelatin mixing and injection device, gelatin and sodium chloride solution are pre-filled into a syringe, solving the problems of cumbersome operation and cross-contamination in existing technologies, and realizing convenient and sterile use of fluid gelatin.
Patent Information
- Application Number
- CN202422534219.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-10-21
AI Technical Summary
Existing fluid gelatin products are cumbersome to operate, with separate components that make them inconvenient and inefficient, and pose a risk of cross-contamination.
An integrated fluid gelatin mixing and injection device was designed, which pre-fills gelatin and sodium chloride solution into a syringe. The ingenious structural design enables mixing and aseptic operation, including a linkage mechanism of cap, bottom stopper and pull rod, to ensure that the solution does not come into contact with the outside air.
It simplifies the operating procedures, reduces drug waste, avoids cross-contamination, and achieves aseptic operation and convenient use.
Smart Images
Figure CN223516393U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to hemostasis auxiliary device technical field relates to integral type fluid gelatin mixed injection device. BACKGROUND
[0002] Hemostatic material is a very important kind of biomedical material, and has important research and application significance. The commonly used hemostatic materials in the clinic at present include hemostatic gauze, hemostatic sponge, hemostatic dressing, hemostatic microspheres and the like. The hemostatic gauze and the hemostatic sponge need to be physically compressed on the bleeding wound during the hemostasis process, and at the same time, they are not suitable for irregularly shaped wounds, deep wounds or narrow wounds. Some wounds with unclear bleeding position and diffuse bleeding wounds, the solid form material cannot be well applied. The fluid hemostatic products can be applied to the target site through a syringe, and have the advantages of clinical easy operation, suitability for minimally invasive surgery and laparoscopic surgery. In recent years, the fluid gelatin has gradually entered the clinical hemostatic application. Gelatin is a kind of natural water-soluble biodegradable polymer material, and its structure is similar to that of biological tissue structure, and has good biocompatibility, and is widely used in hemostatic materials. Therefore, the fluid gelatin is often used for the hemostasis of irregularly shaped wounds, deep wounds or narrow wounds.
[0003] The common fluid gelatin product on the market is Surgiflo Haemostatic Matrix of Ethicon company. The product is a kind of kit, which has two separate syringes, and a separate sodium chloride liquid and a cup-shaped container. One of the syringes is loaded with gelatin in the injection chamber, and the other syringe is empty. When in use, the sodium chloride liquid needs to be opened and put into the cup-shaped container, and then the empty syringe is used to suck the sodium chloride solution. After the two syringes are connected head to head, the gelatin is fully dispersed in the sodium chloride solution by several times of push injection. When in use, the gelatin in the fluid state is pushed into the wound through a hose or a shapeable tube. In the actual use process, since the components in the kit are separated from each other, the operation process is very cumbersome and low in efficiency. In addition, the length of the connected syringes is relatively long, and it is quite inconvenient to operate. SUMMARY
[0004] In order to solve the above problems, the utility model discloses an integral type fluid gelatin mixed injection device, which separates the gelatin and the sodium chloride solution and preinstalls them in one syringe. The gelatin and the sodium chloride solution are mixed before use, and the structure is compact and convenient to use.
[0005] In order to achieve the above purposes, the utility model provides the following technical scheme:
[0006] The utility model discloses an integral fluid gelatin mixing injection device, including syringe, the syringe includes cylinder and at least partial push rod in the cylinder, and the push rod head is equipped with the piston, and the push rod side is equipped with a solution box, and the solution box is equipped with solution, and the solution box top is provided with the opening, and the bottom is provided with the outlet, and the opening is equipped with the cover, and the cover is connected with the bottom plug through the pull rod, and the bottom plug is used for closing the outlet, and the solution box bottom is equipped with injection needle, and the injection needle is provided with the channel for conveying solution, and the outlet is arranged above the injection needle channel, and the injection needle bottom penetrates the piston, and the cylinder is equipped with gelatin, and the gelatin is between the piston and the cylinder head.
[0007] Further, the bottom of the cover is provided with a limiting sheet, and the outer diameter of the limiting sheet is greater than the diameter of the opening.
[0008] Further, the cover is made of rubber or silicone.
[0009] Further, the cover is provided with a protrusion.
[0010] Further, the side of the cover is provided with external threads, and the inner wall of the opening is provided with internal threads matched with the external threads.
[0011] Further, the side of the bottom plug is provided with external threads, and the inner wall of the outlet is provided with internal threads matched with the external threads.
[0012] Further, the cover is provided with an operating head.
[0013] Further, the head of the cylinder is provided with threads.
[0014] Further, the bottom of the injection needle is flush with the bottom of the piston.
[0015] Further, the injection end of the head of the cylinder is connected with a pull cover, and the pull cover is further connected with a clasp.
[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0017] 1. The gelatin and sodium chloride solution are loaded in one syringe, without the need to equip two syringes, saving cost, eliminating the transfer of solution from other packages to pain, reducing the waste of medicine caused by adsorption, and preventing cross contamination or secondary pollution during use.
[0018] 2. The bottom of the solution is sealed with a bottom plug, and the bottom plug is opened from the outside by operating the cover through a linkage mechanism. The solution does not come into contact with the outside air after the bottom plug is opened through the ingenious structure design, avoiding pollution. In addition, the bottom plug can be resealed by operating the cover, keeping clean and realizing sterile operation.
[0019] 3. The pull cover design can keep the inside of the cylinder clean. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of the integrated fluid gelatin mixing and injection device provided in Example 1.
[0021] Figure 2 for Figure 1 Diagram showing the solution container with the lid open.
[0022] Figure 3 This is a schematic diagram of the push rod.
[0023] Figure 4 This is a 3D view of the solution container.
[0024] Figure 5 This is a side view of the solution container.
[0025] Figure 6 This is a schematic diagram of the overall structure of an integrated fluid gelatin mixing and injection device with a pull-out cap.
[0026] Figure 7 for Figure 5 Diagram showing the pull-out cover in the open position.
[0027] Figure 8 This is a perspective view of the solution box in the integrated fluid gelatin mixing and injection device provided in Example 2.
[0028] Figure 9 This is a schematic diagram of the structure of the cap, pull rod, and bottom plug in Example 2.
[0029] Explanation of reference numerals in the attached figures:
[0030] Syringe 1, barrel 101, plunger 102, piston 103, solution container 104, solution 105, cap 106, outlet 107, bottom plug 108, pull rod 109, injection needle 110, gelatin 111, injection end 112, protrusion 113, external thread 114, pull cap 115, retaining ring 116, opening 117, limiting piece 118, triangular operating head 119. Detailed Implementation
[0031] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.
[0032] Example 1:
[0033] like Figure 1 ,Figure 2 The shown one-piece fluid gelatin mixing injection device comprises a syringe 1, the syringe structure mainly comprises a barrel 101 and a push rod 102, the push rod 102 is provided with a piston 103 at the head, the push rod is movable in the barrel 101 and is at least partially arranged in the barrel 101. As shown in the figure, Figure 3 As shown, the push rod 102 is provided with a solution box 104 at the side, the solution box 104 is preloaded with a solution 105. The cavity between the piston 103 and the head of the barrel 101 in the barrel 101 is loaded with gelatin 111.
[0034] As shown in the figure, Figure 4 , Figure 5 As shown, the solution box is provided with an opening 117 at the top and an outlet 107 at the bottom, the opening is provided with a cover 106. The cover 106 is connected with the bottom plug 108 through a pull rod 109, when the cover is lifted up, the bottom plug is lifted out under the action of the pull rod, when the bottom of the bottom plug is higher than the outlet, the solution flows out from the outlet. The pull rod should be made of thin and strong hard material (such as sterilized medical metal, plastic, etc.), because it is thin, multiple pull rods can also be arranged to ensure the linkage of the cover and the bottom plug. The cover should have a certain height, so that the cover lifting operation has a suitable stroke, and the bottom of the cover has a limiting piece 118 protruding from the edge of the cover, the outer diameter of the limiting piece is greater than the diameter of the opening, if the lifting amplitude is too large, the limiting piece will be stuck in the opening edge and will not allow the cover to come out. In this way, even in the lifted state, the cover still seals the opening, avoiding the pollution caused by the entry of external air into the solution box. The solution box is provided with an injection needle 110, the injection needle 110 is provided with a channel for conveying the solution (see the commonly used needle of the syringe), the outlet 107 is arranged above the channel of the injection needle and can communicate with the channel, the solution flowing out from the outlet enters the channel. The bottom of the injection needle penetrates the piston, and the solution flowing out from the bottom of the injection needle can enter the cavity between the piston and the head of the barrel (the end where the injection end of the syringe is located is the head, and the end where the push rod is located is the tail). The bottom of the injection needle is preferably flush with the bottom of the piston, which will not affect the subsequent injection. After the solution flows into the cavity, it can be mixed with the gelatin. When the solution flows out from the solution box, the cover is pressed down, and the bottom plug returns to the original position under the action of the pull rod when it is not lifted, sealing the outlet, so that sterile operation is realized during later injection.
[0035] As a preferred, the cover should be made of rubber or silicone, which is beneficial to seal the opening.
[0036] As shown in the figure, Figure 3 The solution box is arranged at the side of the push rod, which needs to be adapted to the structure and shape of the side of the push rod, in this example, the cross section of the solution box is roughly fan-shaped. In order to facilitate the opening of the cover, a protrusion 113 is arranged on the cover. The cover can be easily opened by holding the protrusion.
[0037] The head of the barrel has an injection end 112, which, as an improvement, has an internal or external thread 114 to facilitate connection with a hose or a shaping tube for the injection of fluid gelatin.
[0038] As an improvement, as shown in Figure 6 、 Figure 7 , a pull-off cap 115 is also provided at the injection end, which has a clasp 116, and the edge of the pull-off cap is connected to the injection end by a weak connection, so that the pull-off cap can be opened by pulling the clasp, and can be completely removed from the injection end by a little force. The pull-off cap is designed to keep the inside of the barrel clean.
[0039] The integrated fluid gelatin mixing injection device is shipped with the plunger pulled out a distance, the piston is a distance away from the head of the barrel, forming a cavity, the cover of the solution box is closed, and the bottom plug seals the outlet, as shown in Figure 1 . When the fluid gelatin is needed, as shown in Figure 2 , the cover is lifted, the bottom plug is lifted with the pull rod, the solution flows into the cavity through the injection needle to mix with the gelatin, and the mixture can be manually shaken or other tools are used to mix thoroughly, and then the operation is performed after the hose or other shaping tube is connected to the injection end.
[0040] Example Two:
[0041] As an improvement of Example One, as shown in Figure 8 、 Figure 9 , the side wall of the cover 106 is provided with an external thread, and the opening 117 is provided with an internal thread matching the external thread, so that the cover is rotated when opened. Therefore, the top of the cover 106 should be provided with a triangular operating head 119 to facilitate finger operation. In addition, in order to facilitate operation, the side wall of the bottom plug 108 should also be provided with an external thread, and the outlet 107 is provided with an internal thread matching the external thread, which can be rotated synchronously with the cover, which is more labor-saving. The length of the external thread of the bottom plug should be less than the length of the cover, so that the cover only needs to be rotated a little to make the bottom plug separate from the outlet, so that the solution flows out. Obviously, the cover and the bottom plug in this example are circular. The remaining technical features in this example should be the same as in Example One.
[0042] When using the integrated fluid gelatin mixing injection device provided in this example, the cover is rotated by operating the triangular operating head, and the bottom plug is lifted with the pull rod, and the solution flows into the cavity through the injection needle to mix with the gelatin, and the mixture can be manually shaken or other tools are used to mix thoroughly, and then the operation is performed after the hose or other shaping tube is connected to the injection end.
[0043] The technical means disclosed by the utility model scheme are not limited to the technical means disclosed by the above-mentioned embodiments, and also include technical schemes composed of any combination of the above technical features. It should be noted that, for ordinary skilled persons in the art, without departing from the principles of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered within the protection scope of the utility model.
Claims
1. An integrated fluid gel mixing syringe comprising a syringe barrel and a plunger at least partially disposed within the barrel, the plunger head being provided with a piston, characterised in that: The push rod side is provided with a solution box, the solution box is provided with an opening at the top and an outlet at the bottom, the opening is provided with a cover, the cover is connected with a bottom plug through a pull rod, the bottom plug is used for sealing the outlet, the solution box is provided with an injection needle at the bottom, the injection needle is provided with a channel for delivering solution, the outlet is arranged above the channel of the injection needle, and the bottom of the injection needle penetrates the piston; the cylinder is provided with gelatin between the piston and the head of the cylinder.
2. The one-piece fluid gelatin mixing syringe of claim 1, wherein: The bottom of the cover is provided with a limiting sheet, and the outer diameter of the limiting sheet is larger than the diameter of the opening.
3. The one-piece fluid gelifying mixing syringe of claim 1 or 2, wherein: The cover is provided with a protrusion.
4. The one-piece fluid gelifying mixing syringe of claim 1 or 2, wherein: The cover is provided with an outer thread on the side, and the inner wall of the opening is provided with an inner thread matched with the outer thread.
5. The one-piece fluid gelatin mixing syringe of claim 4, wherein: The bottom plug is provided with an outer thread on the side, and the inner wall of the outlet is provided with an inner thread matched with the outer thread.
6. The one-piece fluid gelatin mixing syringe of claim 5, wherein: The cover is provided with an operating head.
7. The one-piece fluid gelatin mixing syringe of claim 1, wherein: The cover is made of rubber or silicone.
8. The one-piece fluid gelatin mixing syringe of claim 1, wherein: The head of the cylinder is provided with a thread.
9. The one-piece fluid gelatin mixing syringe of claim 1, wherein: The bottom of the injection needle is flush with the bottom of the piston.
10. The one-piece fluid gelatin mixing syringe of claim 1, wherein: The injection end of the head of the cylinder is connected with a pull cover, and the pull cover is further connected with a clasp.