Simple negative pressure drainage device with injector structure
By designing the card blocks and snails for supporting components on the syringe, the problem of unstable fixation of the syringe push rod is solved, the stability of the negative pressure state and the simplicity of operation are achieved, and the workload of the nurse is reduced.
Patent Information
- Application Number
- CN202421477305.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-06-26
AI Technical Summary
In the negative pressure drainage device made by existing syringes, the push rod is unstable and the tape is easily loose, resulting in unstable negative pressure state, and the operation is complicated when the nurse replaces the negative pressure.
A simple negative pressure drainage device with a syringe structure is designed, and a supporting component is used to include upper and lower clamps and a fixing rod. Both ends of the fixing rod are clamped. The clamping member jammed the syringe push rod to avoid falling off and maintain a continuous and stable negative pressure state.
The stable fixation of the syringe push rod is achieved, and the continuous and stable negative pressure state is maintained, which simplifies the nurse's operating process and improves the connection stability and convenience of use of the device.
Smart Images
Figure CN223054801U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a simple negative pressure drainage device with a syringe structure. Background Art
[0002] In the surgical field, patients who need drainage after surgery are relatively common, such as dilator implantation, auricular reconstruction, etc. For these surgical areas with small dissection cavities, a simple negative pressure drainage device can usually be made by connecting a 20-ml syringe to a scalp needle, which greatly reduces the cost for patients to use conventional negative pressure equipment.
[0003] The structure of a 20-ml syringe is as Figure 1 shown, including a syringe barrel and a push rod. There is a rubber stopper at the end of the push rod, a notch is provided at the lower part of the push rod, the top of the push rod is a top plate, and a wing plate is provided at the top of the syringe barrel. When making a negative pressure drainage device with the syringe, the syringe is connected to a scalp needle, and then the push rod is pulled to a fixed position.
[0004] In order to keep the position of the push rod fixed, when currently making a negative pressure drainage device with a syringe, the push rod of a 5-ml syringe is broken and used to fix the push rod after aspiration of the 20-ml syringe, so as to maintain a continuous negative pressure state. This fixing method requires the broken push rod of the 5-ml syringe to be placed between the syringe barrel of the 20-ml syringe and the top of the push rod, and then fixed with adhesive tape. However, the adhesive tape is very easy to loosen, and the fixing rod will fall off at any time after loosening, resulting in the disappearance of negative pressure. In addition, after fixing with adhesive tape, it is rather cumbersome for nurses to change the negative pressure. They need to remove the adhesive tape, and then fix it again after draining the drainage fluid. These disadvantages limit its application. Content of the Utility Model
[0005] In view of the above problems, the purpose of the utility model is to provide a simple negative pressure drainage device with a syringe structure, aiming to solve the above technical problems.
[0006] The utility model adopts the following technical scheme:
[0007] The simple negative pressure drainage device with a syringe structure includes a syringe, the syringe includes a syringe barrel and a push rod, and the simple negative pressure drainage device further includes a support assembly. The support assembly includes an upper clamping block and a lower clamping block with a horizontal groove. The upper and lower clamping blocks are integrally formed through a fixing rod, and a clamping member is arranged on the lower part of the fixing rod facing the push rod of the syringe.
[0008] Further, the clamping member is arranged facing the notch position of the push rod of the syringe.
[0009] Further, the clamping member includes a connecting portion in the middle. Clamping hook portions are arranged at both ends of the connecting portion facing the notch direction. The outer ends of the clamping hook portions form a holding portion backward. The fixing rod is located between the two holding portions and is integrally formed with the connecting portion.
[0010] Furthermore, an avoidance groove is provided along the height direction on the inner side of the fixing rod.
[0011] The beneficial effects of the present utility model are as follows: The present utility model designs a fixing rod containing a clamping member. The two ends of the fixing rod are clamping blocks, which can be respectively inserted into the top plate of the syringe push rod and the wing plate of the syringe barrel. The clamping member can directly clamp the syringe push rod to prevent the fixing rod from falling off. Therefore, through this structural design, the syringe push rod can be firmly and stably fixed, maintaining a continuous and stable negative pressure state of the syringe, which can significantly reduce the workload of nurses. The overall product structure is simple, the connection is stable, and the disassembly and use are very convenient. Description of the Drawings
[0012] Figure 1 is a structural diagram of an existing syringe;
[0013] Figure 2 is a three-dimensional view of the simple negative pressure drainage device provided by the embodiment of the present utility model Figure 1 ;
[0014] Figure 3 is a three-dimensional view of the simple negative pressure drainage device provided by the embodiment of the present utility model Figure 2 . Detailed Embodiments
[0015] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0016] In order to illustrate the technical solutions described in the present utility model, the following will be illustrated through specific embodiments.
[0017] As Figure 2 , 3 shown, the simple negative pressure drainage device with a syringe structure provided in this embodiment includes a syringe. The syringe includes a syringe barrel 1 and a push rod 2. The simple negative pressure drainage device further includes a support assembly 3. The support assembly 3 includes an upper clamping block 31 and a lower clamping block 32 with a horizontal groove opened. The upper and lower clamping blocks are integrally formed by a fixing rod 33. A clamping member 34 is provided on the lower part of the fixing rod 33 facing the syringe push rod.
[0018] The top of the push rod 2 is a top plate, which is originally in a sheet shape, and the top of the syringe barrel 1 is a wing plate that expands to both sides. In this structure, a fixing rod for fixing the syringe push rod is provided. The upper and lower ends of the fixing rod are an upper clamping block and a lower clamping block, and horizontal grooves with matching thicknesses are opened on the inner sides of the upper and lower clamping blocks. During installation, the horizontal groove of the upper clamping block is inserted into the top plate of the push rod, and the horizontal groove of the lower clamping block is inserted into the wing plate of the syringe barrel, so as to limit and prevent the push rod from moving up and down. At the same time, the fixing rod is integrally formed with a clamping member, and this clamping member is used to clamp the syringe push rod. The syringe push rod is composed of four connecting plates distributed in a cross shape, and the clamping member can clamp two connecting plates, which can prevent the fixing rod from falling off to the outside.
[0019] Therefore, when using this product, after connecting the syringe to the scalp needle, the push rod is pulled out by a fixed distance. In this embodiment, it is the 20 - milliliter position. Then, the upper and lower ends of the fixing rod are respectively clamped into the top plate and the wing plate, and at the same time, the middle clamping member can automatically clamp the push rod. Therefore, through this structural design, the syringe push rod can be firmly and stably fixed, maintaining a continuous and stable negative pressure state of the syringe. The product has a simple structural design, stable connection, and is very convenient to disassemble and use, which can significantly reduce the workload of nurses.
[0020] In this embodiment, the specific structure of the clamping member and the position of clamping the syringe push rod are not limited. As a specific form, the clamping member 34 is arranged at the notch position facing the syringe push rod. Since when the syringe is at the 20 - milliliter position, the notch of the push rod can just expose the syringe barrel, this structure aims at this feature and clamps the clamping member to this position. The notch and the clamping member can also form upper and lower limits, which can further ensure the fixing firmness. Moreover, the notch is concave, which is also convenient for directly pushing in the clamping member, and the operation is simple.
[0021] As a specific structure of the clamping member, in the figure, the clamping member 34 includes a connecting portion 341 in the middle. At both ends of the connecting portion 341, hook portions 342 are provided towards the notch direction. The outer ends of the hook portions 342 form a handheld portion 343 backward. The fixing rod 33 is located between the two handheld portions 343 and is integrally formed with the connecting portion 341. The end of the hook portion 342 is a guiding surface, which is convenient for pushing in the clamping member. The two hook portions 342 are connected integrally by the connecting portion. By pressing the two handheld portions 343, the two hook portions 342 can be driven to disengage from the notch, and then the disassembly of the fixing rod can be completed. The operation method is simple. The distance between the two handheld portions 343 is greater than the width of the fixing rod, which does not affect the pressing operation. In addition, an avoidance groove 34 is provided along the height direction on the inner side of the fixing rod 33 for avoiding the push rod. At the same time, setting the avoidance groove also strengthens the strength of the fixing rod.
[0022] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A simple negative pressure drainage device with a syringe structure, comprising a syringe, the syringe including a barrel and a plunger, characterized in that, The simple negative pressure drainage device further includes a support assembly. The support assembly includes an upper clamping block and a lower clamping block with a horizontal groove. The upper and lower clamping blocks are integrally formed by a fixing rod. A clamping member is arranged at the lower part of the fixing rod facing the syringe push rod; the clamping member is arranged at the notch position facing the syringe push rod; the clamping member includes a connecting portion in the middle. At both ends of the connecting portion, hook portions are arranged towards the notch direction. The outer ends of the hook portions form a handheld portion backwards. The fixing rod is located between the two handheld portions and is integrally formed with the connecting portion.
2. The simple negative pressure drainage device with the syringe structure according to claim 1, characterized in that, An avoidance groove is arranged along the height direction on the inner side of the fixing rod.