Fluid gelatin mixed injection combined device

Abstract

The utility model discloses a fluid gelatin mixed injection combination device which comprises a gelatin injector and a solution injector, gelatin is filled in the gelatin injector, a solution is filled in the solution injector, a film for sealing the solution is arranged in the head of the solution injector, and the head of the gelatin injector is connected with the head of the solution injector through threads. A spine is arranged at one end, connected with the solution injector, of the gelatin injector head. According to the utility model, the sodium chloride solution is loaded in another injector in advance, the head of the injector is sealed by the film to prevent leakage, and the gelatin injector and the solution injector are semi-connected together when leaving a factory, so that the material is saved, the operation is simple and convenient, and the efficiency is greatly improved. And meanwhile, the transfer of the solution from other packages to the pain is avoided, the waste of the medicine caused by adsorption is reduced, and cross contamination or secondary pollution in the use process can be prevented. On the basis of the scheme, the utility model further provides a hose connecting and combining mode of the gelatin injector and the solution injector.

Description

Technical Field

[0001] This utility model belongs to the technical field of hemostasis auxiliary devices, and relates to a fluid gelatin mixing and injection combination device. Background Art

[0002] Hemostatic materials are a crucial class of biomedical materials with significant research and application value. Currently, commonly used clinical hemostatic materials include hemostatic gauze, hemostatic sponges, hemostatic dressings, and hemostatic microspheres. Hemostatic gauze and sponges require physical compression of the bleeding wound during hemostasis; however, they are not suitable for irregularly shaped, deep, or narrow wounds. Solid materials are also not well-suited for wounds with unclear bleeding locations or diffuse oozing. Fluid hemostatic products, due to their ease of clinical application via syringe and suitability for minimally invasive and abdominal surgeries, have gradually entered clinical hemostatic applications in recent years. Gelatin, a natural, water-soluble, biodegradable polymer with a structure similar to biological tissues, exhibits good biocompatibility and is widely used in hemostatic materials. Therefore, fluid gelatin is now commonly used for hemostasis of irregularly shaped, deep, or narrow wounds.

[0003] A common commercially available fluid gelatin product is Ethicon's Surgiflo Haemostatic Matrix. This product is a kit containing two separate syringes, a separate sodium chloride solution, and a cup-shaped container. One syringe contains gelatin, while the other is empty. To use it, the sodium chloride solution is opened and placed into the cup-shaped container. The empty syringe is then used to draw up the solution. The two syringes are connected end-to-end and injected back and forth several times to ensure the gelatin is fully dispersed in the solution. Finally, the fluid gelatin is injected into the wound through a soft tube or a styable tube. In practice, the separate components of the kit make the process cumbersome and inefficient. Furthermore, the interconnected syringes are quite long, making operation inconvenient. Summary of the Invention

[0004] To address the aforementioned problems, this utility model discloses a fluid gelatin mixing and injection assembly device.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fluid gelatin mixing and injection assembly includes a gelatin syringe and a solution syringe. The gelatin syringe contains gelatin, and the solution syringe contains a solution. A thin film for sealing the solution is provided inside the head of the solution syringe. The head of the gelatin syringe and the head of the solution syringe are connected by threads. One end of the gelatin syringe head for connecting to the solution syringe is provided with a spike.

[0007] Furthermore, the gelatin syringe head is provided with an internal thread, and the solution syringe head is provided with an external thread.

[0008] Furthermore, the gelatin syringe head is provided with external threads, and the solution syringe head is provided with internal threads.

[0009] A fluid gelatin mixing and injection assembly includes a gelatin syringe, a solution syringe, and a connecting tube. The gelatin syringe contains gelatin, and the solution syringe contains a solution. The head of the solution syringe is provided with a thin film for sealing the solution. The two ends of the connecting tube are respectively connected to the head of the gelatin syringe and the head of the solution syringe by threads. The end of the connecting tube used to connect to the solution syringe is provided with a spike.

[0010] Furthermore, the head of the gelatin syringe is provided with an internal thread, and the end of the connecting tube used to connect to the gelatin syringe is provided with an external thread.

[0011] or

[0012] The gelatin syringe head is provided with external threads, and the connecting tube is provided with internal threads at one end for connecting to the gelatin syringe.

[0013] Furthermore, the head of the solution injector is provided with an internal thread, and the end of the connecting tube used to connect to the solution injector is provided with an external thread;

[0014] or

[0015] The head of the solution injector is provided with external threads, and the end of the connecting tube used to connect to the solution injector is provided with internal threads.

[0016] Furthermore, it also includes two fixing brackets, each with a groove for accommodating a gelatin syringe and a solution syringe.

[0017] Furthermore, the connecting pipe is a flexible tube.

[0018] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0019] 1. This invention pre-loads a sodium chloride solution into another syringe, seals the syringe head with a film to prevent leakage, and semi-connects the gelatin syringe and the solution syringe at the factory. This saves materials, simplifies operation, reduces operational steps, and significantly improves efficiency. Simultaneously, it eliminates the need to transfer the solution from other packaging to the syringe, reducing waste caused by drug adsorption, and preventing cross-contamination or secondary contamination during use.

[0020] 2. Based on the above solution, this utility model also provides a tubular connection combination method for gelatin syringes and solution syringes, which can further save processes and improve efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the fluid gelatin mixing and injection assembly provided in Example 1, wherein the gelatin injector and the solution injector are in a semi-connected state.

[0022] Figure 2 for Figure 1 The diagram shows the gelatin syringe and solution syringe in a fully connected state.

[0023] Figure 3 This is a schematic diagram of the overall structure of the fluid gelatin mixing and injection assembly provided in Example 2, wherein the connecting tube and the solution injector are in a semi-connected state.

[0024] Figure 4 for Figure 3 The diagram shows the connecting tube and solution syringe in a fully connected state.

[0025] Figure 5 This diagram shows a syringe and its mounting bracket, using a solution syringe as an example.

[0026] Figure 6 This is a front view of the fixed bracket.

[0027] Explanation of reference numerals in the attached figures:

[0028] Gelatin syringe 1, gelatin 101, spikes 102 and 301, solution syringe 2, sodium chloride solution 201, membrane 202, connecting tube 3, fixing bracket 4, groove 401. Detailed Implementation

[0029] 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.

[0030] Example 1:

[0031] like Figure 1As shown, the fluid gelatin mixing and injection assembly provided by this utility model includes a gelatin injector 1 and a solution injector 2. The gelatin injector 1 is pre-filled with gelatin 101, and the solution injector is pre-filled with sodium chloride solution 201. A thin film 202 for sealing the solution is provided inside the head of the solution injector (in this utility model, the end of the injector used for injection is called the head, and its push rod is called the tail). The head of the gelatin injector 1 and the head of the solution injector 2 are connected by threads. A spike 102 is provided at one end of the head of the gelatin injector 1 for connecting to the solution injector. The spike is L-shaped in general, with one end connected to the inner wall of the head of the gelatin injector and the other end extending outward from the head.

[0032] Specifically, the gelatin syringe and the solution syringe should be connected by internal and external threads. Since the spike is located inside the gelatin syringe, it is preferable to have an external thread on the gelatin syringe head and an internal thread on the solution syringe head to facilitate piercing the membrane. Of course, it is also possible to have an internal thread on the gelatin syringe head and an external thread on the solution syringe head. In this case, the connection between the spike and the inner wall of the gelatin syringe head should be closer to the inside of the syringe.

[0033] When the product leaves the factory, the head of the gelatin syringe 1 and the head of the solution syringe 2 should be as follows: Figure 1 The partial connection shown indicates that the thread is not fully tightened. In this position, the spike is still some distance from the film and will not puncture it. Because the two syringe heads are threadedly connected, even with some vibration during transportation, the limited travel of the spike will prevent the film from being punctured. When using this assembly, tighten the thread between the gelatin syringe and the solution syringe fully, as shown... Figure 2 As shown. At this point, the membrane is pierced by the spike, and the solution in the syringe seeps out and mixes with the gelatin. The operator can push and pull the plungers of the two syringes back and forth to achieve mixing. When the mixture is sufficient, push the fluid gelatin into one syringe, keeping the syringe head up and tail down, and unscrew the other syringe to connect a tubing or sizing tube to inject the fluid gelatin onto the wound.

[0034] In this example, a sodium chloride solution is pre-loaded into another syringe, and the syringe head is sealed with a film to prevent leakage. The gelatin syringe and the solution syringe are half-connected together, which saves materials, reduces operation steps, and greatly improves efficiency.

[0035] Example 2:

[0036] like Figure 3As shown, the fluid gelatin mixing and injection assembly provided by this utility model includes a gelatin injector 1, a solution injector 2, and a connecting tube 3. The gelatin injector 1 is pre-filled with gelatin 101, and the solution injector is pre-filled with sodium chloride solution 201. A thin film 202 for sealing the solution is provided inside the head of the solution injector (in this utility model, the end of the injector used for injection is called the head, and its plunger is called the tail). The two ends of the connecting tube 3 are respectively connected to the head of the gelatin injector 1 and the head of the solution injector 2 via threads. A spike 301 is provided on the inner wall of the end used to connect to the solution injector. The spike is generally L-shaped, with one end connected to the inner wall of the connecting tube 3 and the other end extending outward along the inner wall direction.

[0037] Specifically, the end of the connecting tube that connects to the gelatin syringe or the solution syringe can employ a suitable matching internal and external thread connection method. That is, the gelatin syringe head has an internal thread, and the end of the connecting tube used to connect to the gelatin syringe has an external thread; or the gelatin syringe head has an external thread, and the end of the connecting tube used to connect to the gelatin syringe has an internal thread. The connection method between the solution syringe and the connecting tube is the same. Similar to Embodiment 1, since the spike is located on the inner wall of the connecting tube, to facilitate piercing the membrane, it is preferable to use a structure where the solution syringe head has an internal thread and the end of the connecting tube connected to the solution syringe has an external thread.

[0038] When the product leaves the factory, the head of the gelatin syringe 1 is connected to the connecting tube, and the connecting tube and the head of the solution syringe 2 should be connected as follows. Figure 3 The partial connection shown indicates that the thread between the connecting tube and the solution injector is not fully tightened. In this position, the spike is still some distance from the membrane and will not puncture it. Because the two syringe heads are threadedly connected, even with some vibration during transport, the limited travel of the spike will prevent puncture of the membrane. When using this assembly, the thread between the connecting tube and the solution injector should be fully tightened, as shown... Figure 4 As shown. At this point, the membrane is pierced by the spike, and the solution in the syringe seeps out and mixes with the gelatin. The operator can push and pull the plungers of the two syringes back and forth to achieve mixing. When the mixture is sufficient, push the fluid gelatin into one syringe, keeping the syringe head down and tail up, and unscrew the connection between the connecting tube and the other syringe. The fluid gelatin can then be directly injected onto the wound surface through the connecting tube.

[0039] The connecting tube is preferably made of silicone tubing, which is flexible and easy to bend.

[0040] In this example, a sodium chloride solution is pre-loaded into another syringe, and the syringe head is sealed with a film to prevent leakage. The gelatin syringe and the solution syringe are connected together by a connecting tube. When in use, the connecting tube is tightened to the solution syringe to mix the gelatin and the solution. After thorough mixing by pushing back and forth, it can be injected directly through the connecting tube, further reducing the number of operation steps.

[0041] As an improvement, this example also includes two fixing supports 4 for the two syringes, such as... Figure 5 , Figure 6 As shown, the two fixed brackets are respectively provided with grooves 401 for accommodating gelatin syringes and solution syringes. The syringes are pre-installed on the brackets when the product leaves the factory. When in use, after tightening the connecting tube and the solution syringe, you can easily push the syringes back and forth to mix them by holding the plunger behind each syringe with both hands. There is no need to hold the syringes, making it more convenient to use.

[0042] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A fluid gelatin mixing and injection assembly, comprising a gelatin injector and a solution injector, characterized in that: The gelatin syringe contains gelatin, the solution syringe contains a solution, and the head of the solution syringe is provided with a thin film for sealing the solution. The head of the gelatin syringe and the head of the solution syringe are connected by threads, and the end of the gelatin syringe head used to connect to the solution syringe is provided with a spike.

2. The fluid gelatin mixing and injection assembly according to claim 1, characterized in that: The gelatin syringe head is provided with an internal thread, and the solution syringe head is provided with an external thread.

3. The fluid gelatin mixing and injection assembly according to claim 1, characterized in that: The gelatin syringe head is provided with an external thread, and the solution syringe head is provided with an internal thread.

4. A fluid gelatin mixing and injection assembly, comprising a gelatin injector, a solution injector, and a connecting tube, characterized in that: The gelatin syringe contains gelatin, the solution syringe contains a solution, and the head of the solution syringe is provided with a thin film for sealing the solution. The two ends of the connecting tube are respectively connected to the head of the gelatin syringe and the head of the solution syringe by threads, and the end of the tube used to connect to the solution syringe is provided with a spike.

5. The fluid gelatin mixing and injection assembly according to claim 4, characterized in that: The gelatin syringe head is provided with an internal thread, and the connecting tube is provided with an external thread at one end for connecting to the gelatin syringe. or The gelatin syringe head is provided with external threads, and the connecting tube is provided with internal threads at one end for connecting to the gelatin syringe.

6. The fluid gelatin mixing and injection assembly according to claim 4, characterized in that: The head of the solution injector is provided with an internal thread, and the end of the connecting tube used to connect to the solution injector is provided with an external thread; or The head of the solution injector is provided with external threads, and the end of the connecting tube used to connect to the solution injector is provided with internal threads.

7. The fluid gelatin mixing and injection assembly according to claim 4, characterized in that: It also includes two fixed supports, each with a groove for accommodating a gelatin syringe and a solution syringe.

8. The fluid gelatin mixing and injection assembly according to claim 4, characterized in that: The connecting pipe is a flexible hose.

Images