Transfusion connector
By designing the structure of the infusion joint, the problem of the inability to connect the Luer male joint is solved, stable connection, preventing reflux and flexibly adjusting the flow rate, improving the safety and convenience of the infusion process.
Patent Information
- Application Number
- CN202421732353.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-07-22
AI Technical Summary
In the prior art, the widespread use of Ruhr male joints leads to the inability to effectively connect two male joint pipelines, and the problem of liquid reflux is prone to occur during the infusion process.
An infusion joint is designed, including an adapter shell, a liquid inlet adapter, a liquid outlet adapter, a support cylinder, an extrusion cylinder, a duckbill valve and a control assembly. The stable connection is achieved through threaded connection. The duckbill valve prevents return, and the adjustment assembly controls the flow rate and seals.
The stable connection between the two male joint pipes is achieved, which prevents liquid from flowing back, and can flexibly adjust the flow rate, improving the safety and convenience of the infusion process.
Smart Images
Figure CN223082035U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical appliances, in particular to an infusion connector. Background Art
[0002] In ophthalmic clinical work, sterile infusion sets or blood transfusion sets are needed. Usually, different specifications of pipelines need to be connected together. In the related art, the conversion connectors are all male connectors at one end and female connectors at the other end, so as to transfer different pipeline structures.
[0003] However, due to the wide application of Luer male connectors, there are more and more schemes with Luer male connectors at the ends of pipelines. In the related art, the connection conversion between two male-connector pipelines cannot be carried out. Moreover, during the conversion process, it is also necessary to prevent liquid backflow during the infusion treatment or drainage of patients.
[0004] Therefore, it is necessary to provide a new infusion connector to solve the above technical problems. Summary of the Utility Model
[0005] To solve the above technical problems, the utility model provides an infusion connector.
[0006] The infusion connector provided by the utility model includes: a transfer shell, a communicating hose is arranged inside the transfer shell, an inlet liquid adapter and an outlet liquid adapter are respectively arranged on both sides outside the transfer shell, and the inlet liquid adapter and the outlet liquid adapter are respectively communicated with the ends of the communicating hose;
[0007] Support cylinders are arranged at positions of the outside of the transfer shell opposite to the inlet liquid adapter and the outlet liquid adapter. The support cylinders are sleeved outside the corresponding inlet liquid adapter and outlet liquid adapter, and an extrusion cylinder is sleeved outside the support cylinders;
[0008] A duckbill valve is arranged inside the outlet liquid adapter, and the outlet of the duckbill valve is on the side far from the inlet liquid adapter;
[0009] An adjusting component for adjusting the specification of the communicating hose is arranged inside the transfer shell.
[0010] Preferably, the adjusting component includes a rotating rod, the rotating rod is rotatably inserted on one side inside the transfer shell, and extrusion strips are sleeved on both sides of the outer wall of the rotating rod through threaded structures, and the thread directions of the two threaded structures are opposite.
[0011] Preferably, the adjusting component further includes a guide rod, the guide rod is arranged on the side inside the transfer shell far from the rotating rod, and the outer wall of the guide rod abuts against and is slidably connected with the inner wall of the extrusion strip.
[0012] Preferably, a convex rod is provided on the outer wall of the extrusion strip, and a positioning block is provided at the end of the convex rod through the adapter housing.
[0013] Preferably, a scale bar is provided at a position on the outer wall of the adapter housing opposite to the positioning block.
[0014] Preferably, a sliding groove is formed at a position on the side wall of the adapter housing opposite to the convex rod, and the inner wall of the sliding groove abuts against and is slidably connected to the outer wall of the convex rod.
[0015] Preferably, a mounting hole is provided at a position on the outer wall of the adapter housing opposite to the rotating rod, and one end of the rotating rod extends outside the adapter housing through the mounting hole.
[0016] Compared with the related art, the infusion adapter provided by the present utility model has the following beneficial effects:
[0017] In the present utility model, a liquid inlet adapter and a liquid outlet adapter which are communicated are respectively arranged on both sides of the adapter housing. During use, when the external pipelines are two reserved male joint pipelines, by connecting the liquid inlet adapter and the liquid outlet adapter to the corresponding male joints respectively, the two external pipelines can be communicated, and thus the communication of the external pipelines is more convenient.
[0018] In the present utility model, a support cylinder and an extrusion cylinder are sleeved outside the liquid inlet adapter and the liquid outlet adapter. After connecting the liquid inlet adapter and the liquid outlet adapter to the external male joint, by screwing the extrusion cylinder to move, the inner wall of the extrusion cylinder abuts against the outer wall of the external male joint, so that an extrusion force is formed between the two, and the connection stability of the device and the external pipeline can be assisted to be improved.
[0019] In the present utility model, a duckbill valve is arranged inside the liquid outlet adapter. During the later infusion process, the duckbill valve can prevent the output liquid from flowing back from the liquid outlet adapter, so the safety effect during the later infusion process can be improved.
[0020] In the present utility model, through the setting of the adjustment assembly, after the external pipelines are communicated by using this adapter, the rotating rod in the adjustment assembly can also be rotated, so that the two extrusion strips on its outer wall move towards the communicating hose, and the extrusion state of the extrusion strips on the communicating hose can be controlled, and thus the internal flow aperture of the communicating hose can be changed to change the later flow rate of the liquid, and further the infusion flow rate can be conveniently controlled during use.
[0021] In the present utility model, through the setting of the adjustment assembly, during the later use process, when the external infusion pipeline needs to be replaced and disassembled, the two extrusion strips can also completely clamp the communicating hose to realize the sealing of the communicating hose, and thus the anti-backflow effect during the disassembly and replacement of the external infusion pipeline can be assisted to be improved. Description of the Drawings
[0022] Figure 1 Schematic structural diagram of a preferred embodiment of the infusion connector provided by the present utility model;
[0023] Figure 2 is Figure 1 Schematic cross-sectional structure diagram of the adapter housing and its components shown;
[0024] Figure 3 is Figure 1 Schematic cross-sectional structure diagram of the support cylinder and the extrusion cylinder shown;
[0025] Figure 4 is Figure 1 Schematic structural diagram of the adjustment assembly shown.
[0026] Reference numerals in the figure: 1. Adapter housing; 11. Slide groove; 12. Scale bar; 13. Mounting hole; 2. Connecting hose; 3. Liquid inlet adapter; 4. Liquid outlet adapter; 5. Duckbill valve; 6. Adjustment assembly; 61. Rotating rod; 62. Extrusion bar; 621. Convex rod; 622. Positioning block; 63. Guide rod; 7. Support cylinder; 71. Extrusion cylinder. Detailed implementation manners
[0027] 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 accompanying 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.
[0028] The following describes the specific implementation of the present utility model in detail with reference to specific embodiments.
[0029] Please refer to Figures 1 to 4 , an infusion connector provided by an embodiment of the present utility model, the infusion connector includes: an adapter housing 1.
[0030] In an embodiment of the present utility model, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a connecting hose 2 is provided inside the adapter housing 1, a liquid inlet adapter 3 and a liquid outlet adapter 4 are respectively provided on both sides outside the adapter housing 1, and the liquid inlet adapter 3 and the liquid outlet adapter 4 are respectively communicated with the ends of the connecting hose 2; support cylinders 7 are provided at positions of the adapter housing 1 outside corresponding to the liquid inlet adapter 3 and the liquid outlet adapter 4, the support cylinders 7 are sleeved outside the corresponding liquid inlet adapter 3 and the liquid outlet adapter 4, and an extrusion cylinder 71 is sleeved outside the support cylinders 7; a duckbill valve 5 is provided inside the liquid outlet adapter 4, and the outlet of the duckbill valve 5 is on the side away from the liquid inlet adapter 3.
[0031] It should be noted that when using this infusion adapter, when there are two male connector pipelines reserved at the externally required connection pipeline port and they cannot be directly docked and converted for connection, this device can be taken out. Then, the outer walls of the liquid inlet adapter 3 and the liquid outlet adapter 4 in this device are respectively screwed with the inner walls of the externally used liquid output pipeline port and the liquid receiving pipeline port, and the connection can be completed through the threaded structure to achieve the transfer of the pipeline.
[0032] After the transfer, the extrusion cylinder 71 can be directly controlled to move on the outer wall of the support cylinder 7 towards the side away from the transfer shell 1. When the inner wall of the moving extrusion cylinder 71 abuts against the outer wall of the end of the externally public transfer pipeline, and an extrusion force is formed between the two, the connection stability of this device and the external pipeline can be assisted to be improved.
[0033] At the same time, during the later infusion process, the duckbill valve 5 can also prevent the output liquid from flowing back from the liquid outlet adapter 4, so the safety effect during the later infusion process can be improved.
[0034] In the embodiment of the present utility model, please refer to Figure 1 、 Figure 2 and Figure 4 , an adjustment assembly 6 for adjusting the specification of the communication hose 2 is provided inside the transfer shell 1. The adjustment assembly 6 includes a rotating rod 61, the rotating rod 61 is rotatably inserted on one side inside the transfer shell 1, and extrusion strips 62 are sleeved on both sides of the outer wall of the rotating rod 61 through threaded structures and are threadedly connected, and the thread directions of the two threaded structures are opposite. The adjustment assembly 6 further includes a guide rod 63, the guide rod 63 is arranged on the side inside the transfer shell 1 away from the rotating rod 61, and the outer wall of the guide rod 63 abuts against and is slidably connected to the inner wall of the extrusion strip 62.
[0035] It should be noted that during use, the rotating rod 61 in the adjustment assembly 6 can be controlled to rotate as needed, and the rotating rod 61 can drive the two extrusion strips 62 on the outer wall to move relatively or away from each other through the threaded structures with opposite thread directions on both sides of the outer wall. During this process, the guide rod 63 on the other side can guide the movement of the extrusion strip 62, making the movement of the extrusion strip 62 more stable and avoiding the phenomenon that the extrusion strip 62 rotates synchronously with the rotating rod 61. Therefore, the extrusion strip 62 can stably move relatively or away from each other.
[0036] When the extrusion strip 62 needs to reduce the infusion flow rate, the extrusion strip 62 can be made to move relatively. When the extrusion strip 62 squeezes the communication hose 2, the inner diameter of the communication hose 2 can be reduced, and thus the flow rate of the liquid during the infusion process can be reduced. On the contrary, when the rotating rod 61 is controlled to rotate in the reverse direction, the extrusion strip 62 can be separated from the communication hose 2, increasing the flow rate of the liquid during the infusion process, and thus facilitating the personnel to flexibly adjust the flow rate.
[0037] In an embodiment of the present utility model, please refer to Figure 1 , Figure 2 and Figure 4 , a convex rod 621 is provided on the outer wall of the extrusion bar 62, and the end of the convex rod 621 penetrates through the adapter housing 1 and is provided with a positioning block 622. A scale bar 12 is provided at a position on the outer wall of the adapter housing 1 opposite to the positioning block 622. A sliding groove 11 is formed at a position on the side wall of the adapter housing 1 opposite to the convex rod 621. The inner wall of the sliding groove 11 abuts against and is slidably connected to the outer wall of the convex rod 621.
[0038] It should be noted that: by providing the sliding groove 11, when the control rotating rod 61 drives the convex rod 621 to move, the sliding groove 11 can enable the convex rod 621 to smoothly slide on the inner wall of the adapter housing 1. At this time, the position of the extrusion bar 62 inside the adapter housing 1 can be known by comparing the positioning block 622 at the end of the convex rod 621 with the external scale bar 12, and then people can change the extrusion and clamping state of the extrusion bar 62 on the communication hose 2.
[0039] In an embodiment of the present utility model, please refer to Figure 1 , Figure 2 and Figure 4 , an installation hole 13 is provided at a position on the outer wall of the adapter housing 1 opposite to the rotating rod 61, and one end of the rotating rod 61 extends outside the adapter housing 1 through the installation hole 13.
[0040] It should be noted that: by providing the installation hole 13, it is convenient for the rotating rod 61 to extend outside the adapter housing 1, and then the rotating rod 61 can be held at the edge to control the rotation of the rotating rod 61.
[0041] The working principle of the infusion connector provided by the present utility model is as follows:
[0042] When using this infusion connector, when there are two male connector pipelines reserved at the external pipeline port to be connected and they cannot be directly docked and converted for communication, this device can be taken out. Then, the outer wall of the liquid inlet adapter 3 in this device is screwed with the inner wall of the external pipeline port for outputting liquid, and the outer wall of the liquid outlet adapter 4 is screwed with the inner wall of the external pipeline port for receiving liquid. The connection can be completed through the threaded structure;
[0043] Then, the extrusion cylinder 71 located on the outer wall of the support cylinder 7 can be controlled to rotate. At this time, the extrusion cylinder 71 on the outer wall of the support cylinder 7 can move away from the adapter housing 1 through the threaded structure until the inclined slope on the inner wall of the extrusion cylinder 71 is in contact with the outer wall of the corresponding connecting pipeline end. Then, the extrusion of the connection position between the external pipeline and the liquid inlet adapter 3 and the liquid outlet adapter 4 can be realized. By applying an extrusion force to the connection part, the phenomenon that the connection part rotates due to friction and the connection part falls off during use can be reduced, thereby improving the connection stability of the adapter in the later stage.
[0044] After the connection and communication of the device are completed, the rotating rod 61 in the adjustment assembly 6 can also be controlled to rotate as needed. At this time, the rotating rotating rod 61 can drive the two extrusion strips 62 on the outer wall to move relatively through the threaded structures with opposite thread directions on both sides of the outer wall. During the movement, the extrusion strips 62 can realize the extrusion of the connecting hose 2 in the adapter housing 1. By extruding the connecting hose 2, the inner diameter of the connecting hose 2 can be changed, and thus the flow rate of the liquid during infusion can be changed.
[0045] Moreover, since a duckbill valve 5 is provided inside the liquid outlet adapter 4, during the infusion process, the duckbill valve 5 can be opened under the extrusion of the liquid, and then the liquid can flow for infusion. When operations such as replacing the external liquid are required, the duckbill valve 5 can be reset by its own force to block the inside of the liquid outlet adapter 4, thereby reducing the phenomenon of liquid backflow, and thus improving the diversity of the later use functions of the device.
[0046] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.
Claims
1. An infusion connector, characterized in that, Including: An adapter housing (1), inside which a connecting hose (2) is provided. On both sides outside the adapter housing (1), a liquid inlet adapter (3) and a liquid outlet adapter (4) are respectively provided, and the liquid inlet adapter (3) and the liquid outlet adapter (4) are respectively communicated with the ends of the connecting hose (2); Support cylinders (7) are provided at positions on the outside of the adapter housing (1) opposite to the liquid inlet adapter (3) and the liquid outlet adapter (4). The support cylinders (7) are sleeved outside the corresponding liquid inlet adapter (3) and liquid outlet adapter (4), and an extrusion cylinder (71) is sleeved outside the support cylinders (7); A duckbill valve (5) is provided inside the liquid outlet adapter (4), and the outlet of the duckbill valve (5) is on the side away from the liquid inlet adapter (3); An adjusting assembly (6) for adjusting the specification of the connecting hose (2) is provided inside the adapter housing (1).
2. The infusion connector according to claim 1, wherein, The adjusting assembly (6) includes a rotating rod (61), the rotating rod (61) is rotatably inserted on one side inside the adapter housing (1), and on both sides of the outer wall of the rotating rod (61), extrusion strips (62) connected by thread are sleeved through a threaded structure, and the thread directions of the two threaded structures are opposite.
3. The infusion connector according to claim 1, characterized in that, The adjusting assembly (6) further includes a guide rod (63), the guide rod (63) is arranged on the side inside the adapter housing (1) away from the rotating rod (61), and the outer wall of the guide rod (63) abuts against and is slidably connected to the inner wall of the extrusion strip (62).
4. The infusion connector according to claim 3, characterized in that, A convex rod (621) is provided on the outer wall of the extrusion strip (62), and the end of the convex rod (621) penetrates through the adapter housing (1) and a positioning block (622) is provided.
5. The infusion connector according to claim 4, characterized in that, A scale bar (12) is provided at a position on the outer wall of the adapter housing (1) opposite to the positioning block (622).
6. The infusion connector according to claim 5, characterized in that, A sliding groove (11) is formed at a position on the side wall of the adapter housing (1) opposite to the convex rod (621), and the inner wall of the sliding groove (11) abuts against and is slidably connected to the outer wall of the convex rod (621).
7. The infusion adapter according to claim 2, wherein, An installation hole (13) is provided at a position on the outer wall of the adapter housing (1) opposite to the rotating rod (61), and one end of the rotating rod (61) extends outside the adapter housing (1) through the installation hole (13).