Saline bag fixing structure of high-pressure injector
By designing a fixing structure for the high-pressure injector saline bag using a fixing plate, retaining ring, and suspension rod, the problems of swaying and unstable clamping in traditional fixing methods are solved, achieving stable suspension and clamping of the saline bag and improving the safety and stability of infusion.
Patent Information
- Application Number
- CN202422277793.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-09-18
AI Technical Summary
Traditional saline bag fixation methods are prone to shaking during high-pressure injection, leading to air bubbles, which can affect imaging results and increase medical risks. Furthermore, the clamp fixation force is difficult to control, and may be damaged or fail to secure the bag effectively.
A fixing structure including a fixing plate, a retaining ring, and a suspension rod was designed. The retaining ring forms a clamping groove through an elastic connection. The suspension rod and the elastic clamping of the retaining ring are used to suspend the saline bags of different sizes. Combined with the fixation device, the drug outlet is stabilized to ensure fixation and stability.
It achieves stable suspension and clamping of saline bags, reduces shaking, improves infusion safety and stability, avoids air bubble formation, and simplifies the fixation process.
Smart Images

Figure CN223787918U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical equipment, and in particular to a saline bag fixing structure for a high-pressure injector. Background Technology
[0002] In the medical field, high-pressure injectors are widely used as important medical devices in medical examinations and treatments such as CT scans and angiography. They rapidly inject contrast agents or other liquids under high pressure to clearly visualize blood vessels or tissue structures. During the use of high-pressure injectors, the saline bag, as a crucial component providing a stable fluid flow, directly affects the smooth progress of the entire medical procedure and the patient's safety.
[0003] Traditional methods of securing saline bags often use simple hooks or clips. While these methods achieve basic fixation, they have several shortcomings in practical use. For example, hook fixation often fails to effectively limit the movement of the saline bag, especially during high-pressure injection. Due to the rapid flow of the fluid and changes in injection pressure, the saline bag is prone to swaying, which not only increases the difficulty of operation but may also cause air bubbles to form, thus affecting imaging results or creating unnecessary medical risks. While clip fixation can reduce movement to some extent, the clamping force is difficult to control; too tight a clamp may damage the saline bag, while too loose a clamp will not provide effective fixation. Utility Model Content
[0004] In view of the above situation, it is necessary to provide a high-pressure injector saline bag fixing structure to solve at least one of the above problems, including a fixing plate, two retaining rings and a hanging rod, wherein the hanging rod is fixedly disposed on the fixing plate, the retaining rings are swayably disposed on the fixing plate, the two retaining rings are elastically connected, and a clamping groove matching the saline bag body is formed between the two retaining rings.
[0005] Preferably, the fixing plate is provided with positioning posts.
[0006] Preferably, one end of the retaining ring is provided with a swing handle, and the swing handle is provided with a first groove that matches the shape of the positioning post.
[0007] Preferably, the end of the handle is further provided with a second slot, the direction of the second slot is perpendicular to the first slot, and the second slots of the two retaining rings are connected by a spring.
[0008] Preferably, the retaining ring is made of an elastic material.
[0009] Preferably, it further includes a fixing device, which includes a curved plate, a clamping block, and a guide plate. The curved plate, the clamping block, and the guide plate are fixedly connected in sequence from top to bottom, and the end face of the curved plate is fixedly connected to the fixing plate.
[0010] Preferably, the clamping block has a clamping groove at its center that matches the shape of the saline bag's dispensing port. Attached Figure Description
[0011] 1. Fixing plate; 11. Positioning post; 2. Snap ring; 21. Clamping groove; 22. Swing handle; 221. First slot; 222. Second slot; 3. Lifting rod; 4. Fixing device; 41. Curved plate; 42. Clamping block; 421. Clamping groove; 43. Guide plate
[0012] Figure 1 This is a schematic diagram of the structure of the high-pressure injector saline bag fixing structure according to an embodiment of the present invention.
[0013] Figure 2 This is an exploded view of the retaining ring and fixing plate according to an embodiment of the present invention.
[0014] Figure 3 This is a schematic diagram of the retaining ring installed on the fixing plate according to an embodiment of the present invention.
[0015] Figure 4 A schematic diagram of the retaining ring according to an embodiment of the utility model. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of the saline bag fixing structure for the high-pressure injector, in conjunction with the accompanying drawings and embodiments, provides further insight. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.
[0017] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0019] Please see Figures 1 to 4 The high-pressure injector saline bag fixing structure of this utility model includes a fixing plate 1, two retaining rings 2 and a hanging rod 3. The hanging rod 3 is fixedly disposed on the fixing plate 1, and the retaining rings 2 are swayably disposed on the fixing plate 1. The two retaining rings 2 are elastically connected, and a clamping groove 21 matching the saline bag body is formed between the two retaining rings 2.
[0020] In the above embodiment, the design of the high-pressure injector saline bag fixing structure aims to achieve stable suspension and clamping of the saline bag through the synergistic action of the suspension rod 3 and the retaining ring 2. The suspension rod 3, as the main load-bearing component, is vertically fixed to the fixing plate 1, and its end is equipped with a hook or similar structure for directly suspending the saline bag's hanging ring or handle. In this way, the weight of the saline bag is mainly borne by the suspension rod 3, ensuring suspension stability. Subsequently, two retaining rings 2 are set on both sides of the fixing plate 1. They can swing within a certain range around their respective hinge points to accommodate saline bags of different widths and shapes. The two retaining rings 2 are connected by an elastic connector, a design that allows an adjustable clamping groove 21 to be formed between the retaining rings 2. When the saline bag is suspended on the suspension rod 3, the operator inserts the saline bag into the retaining ring 2, and the retaining ring 2 automatically clamps, making the clamping groove 21 tightly fit the side of the saline bag, thereby achieving stable clamping of the saline bag, avoiding shaking, and thus reducing air bubbles caused by shaking, improving the safety and stability of infusion.
[0021] Please see Figures 1 to 4 In another embodiment, the fixing plate 1 is provided with a positioning post 11. One end of the retaining ring 2 is provided with a swing handle 22, and the swing handle 22 is provided with a first groove 221 that matches the shape of the positioning post 11.
[0022] In the above embodiment, one end of the retaining ring 2 is designed with a swing handle 22, on which a first slot 221 is formed that precisely matches the shape of the positioning post 11. During assembly, the retaining ring 2 is fitted into the positioning post 11 through the first slot 221 on its swing handle 22, so that the retaining ring 2 is securely connected to the fixing plate 1, while also being able to swing freely around the positioning post 11. This design realizes the swingable setting of the retaining ring 2 on the fixing plate 1, which not only ensures the stability of the retaining ring 2, but also gives it flexibility, so as to better adapt to saline bags of different specifications and shapes, thereby improving the applicability and convenience of the overall structure.
[0023] Please see Figures 1 to 4 In another embodiment, the end of the handle 22 is also provided with a second slot 222, the orientation of the second slot 222 is perpendicular to the first slot 221, and the second slots 222 of the two retaining rings 2 are connected by a spring.
[0024] In the above embodiment, the two retaining rings 2, while maintaining their respective swing around the positioning post 11, can also be pulled together by the elastic force of the spring, forming an elastic clamping structure. When the saline bag is placed between the two retaining rings 2, the elastic force of the spring causes the retaining rings 2 to automatically clamp the saline bag, achieving a stable fixation without additional operation.
[0025] Please see Figures 1 to 4 In another embodiment, the retaining ring 2 is made of an elastic material.
[0026] In the above embodiments, the inherent elastic properties of the material are utilized to achieve automatic clamping and adaptation of the saline bag. When the saline bag is placed between the two retaining rings 2, due to the elasticity of the material of the retaining rings 2, they can deform under the action of external force, thereby closely conforming to the contour of the saline bag.
[0027] Please see Figures 1 to 4 In another embodiment, a retaining device 4 is also included, which includes a curved plate 41, a clamping block 42 and a guide plate 43. The curved plate 41, the clamping block 42 and the guide plate 43 are fixedly connected from top to bottom, and the end face of the curved plate 41 is fixedly connected to the fixing plate 1.
[0028] In the above embodiment, the curved plate 41 serves as the top element, with its end face directly fixedly connected to the fixed plate 1, ensuring that the entire positioning device 4 is securely mounted on the fixed plate 1. The clamping block 42 is located below the curved plate 41, used to further secure or clamp the drug outlet of the saline bag, enhancing overall stability. The guide plate 43 is located at the bottom, used to guide or fix infusion tubing and other cables to maintain their orderly arrangement. This makes the positioning device 4 both stable and multifunctional on the fixed plate 1, meeting the needs for securing the saline bag and its related accessories during infusion.
[0029] Please see Figures 1 to 4 In another embodiment, the clamping block 42 is provided with a clamping groove 421 at the middle position that matches the shape of the saline bag dispensing port.
[0030] In the above embodiment, a clamping groove 421 matching the shape of the saline bag's dispensing port is formed in the middle of the clamping block 42. This complementary and matching shape achieves precise clamping and positioning of the saline bag's dispensing port. When the saline bag is placed on the fixing device 4, its dispensing port naturally falls into the clamping groove 421 and is securely clamped. This design not only simplifies the saline bag fixing process but also ensures the stability of the dispensing port during infusion, avoiding unnecessary trouble and safety hazards caused by shaking or displacement.
[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A saline bag fixing structure for a high-pressure injector, characterized in that, It includes a fixed plate, two retaining rings, and a hanging rod. The hanging rod is fixedly mounted on the fixed plate, and the retaining rings are swayably mounted on the fixed plate. The two retaining rings are elastically connected, and a clamping groove matching the bag body of the saline bag is formed between the two retaining rings.
2. The high-pressure injector saline bag fixing structure as described in claim 1, characterized in that: The fixing plate is equipped with positioning posts.
3. The saline bag fixing structure for the high-pressure injector as described in claim 2, characterized in that: One end of the retaining ring is provided with a swing handle, and the swing handle is provided with a first hole groove that matches the shape of the positioning post.
4. The saline bag fixing structure for a high-pressure injector as described in claim 3, characterized in that: The end of the handle is also provided with a second slot, the direction of which is perpendicular to the first slot, and the second slots of the two retaining rings are connected by a spring.
5. The saline bag fixing structure for a high-pressure injector as described in claim 1, characterized in that: The retaining ring is made of an elastic material.
6. The saline bag fixing structure for a high-pressure injector as described in claim 1, characterized in that: It also includes a fixing device, which includes a curved plate, a clamping block and a guide plate. The curved plate, the clamping block and the guide plate are fixedly connected from top to bottom, and the end face of the curved plate is fixedly connected to the fixing plate.
7. The high-pressure injector saline bag fixing structure as described in claim 6, characterized in that: The clamping block has a groove in the middle that matches the shape of the saline bag's dispensing port.