Transfusion control switch

Abstract

The utility model discloses an infusion control switch, and belongs to the field of medical instruments. An infusion control switch comprises an infusion tube provided with an infusion channel; the connecting block is fixedly connected with the infusion tube; the limiting rod is horizontally and slidably connected with the connecting block; the flexible block is fixedly connected with the connecting block; wherein the limiting rod comprises a first bulge, a second bulge and an insertion part; the first protrusion and the second protrusion form a clamping groove. The flexible block comprises a first mounting hole and a second mounting hole; the first mounting holes are formed in the circumference of the connecting block; the second mounting hole is positioned in the clamping groove; the infusion tube comprises a limiting hole; the limiting hole is communicated with the infusion channel; and the insertion part is inserted into the limiting hole to close the infusion channel. The infusion control switch has the beneficial effect that the infusion control switch with higher safety performance is provided.

Description

Technical Field

[0001] This application relates to the field of medical devices, and more particularly, to an infusion control switch. Background Art

[0002] Medical infusion is a method of injecting a large amount of sterile liquid, electrolyte, and drug into the body by using the principles of atmospheric pressure and hydrostatic pressure. Injecting a large amount of liquid, electrolyte, or blood into a vein is called intravenous infusion. Depending on the injection site and type of infusion, it can be divided into peripheral intravenous infusion, central venous infusion, total parenteral nutrition (TPN) infusion, and blood transfusion, etc. Medical infusion has many advantages: 1. It is easy to reach the therapeutic concentration of the drug and can continuously maintain the constant concentration required for the efficacy. 2. Drugs that are irritating to muscles and subcutaneous tissues can be administered intravenously. 3. It can quickly replenish the lost liquid or blood in the body. 4. Infusion of intravenous nutrients.

[0003] Therefore, the number of patients undergoing infusion is huge now, and the infusion process often takes several hours. Neither medical staff nor nurses can always monitor the infusion process. Patients often forget to observe when the liquid medicine just finishes due to the long time, which often causes air to enter the body or blood to flow back, causing great harm to the patients. Existing medical infusion devices cannot accurately judge when the liquid medicine just finishes and are prone to cause a small amount of blood return.

[0004] Therefore, an infusion control switch with higher safety performance is provided. Summary of the Utility Model

[0005] This part of the content of this application is used to briefly introduce the concepts, which will be described in detail in the following Detailed Description part. This part of the content of this application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0006] To solve the technical problems mentioned in the above Background Art part, some embodiments of this application provide an infusion control switch, including: an infusion tube having an infusion channel; a connection block fixedly connected to the infusion tube; a limiting rod horizontally slidably connected to the connection block; a flexible block fixedly connected to the connection block; wherein, the limiting rod includes a first protrusion, a second protrusion, and an insertion part; the first protrusion and the second protrusion form a clamping groove; the flexible block includes a first mounting hole and a second mounting hole; the first mounting hole is located on the circumference of the connection block; the second mounting hole is located in the clamping groove; the infusion tube includes a limiting hole; the limiting hole communicates with the infusion channel; the insertion part is inserted into the limiting hole to close the infusion channel.

[0007] When the infusion is finished, the insertion part can be inserted into the limit hole, thereby closing the infusion channel to prevent air from entering the human body or blood from flowing back, so the safety performance is higher.

[0008] Furthermore, the connecting block is provided with a guiding hole extending along the axial direction of the limiting rod; a part of the limiting rod is located in the guiding hole and moves along the axial direction of the guiding hole.

[0009] Furthermore, an annular groove is provided at one end of the limiting rod to facilitate pulling the limiting rod.

[0010] Furthermore, there are a plurality of the annular grooves; the plurality of annular grooves are equidistantly distributed along the axial direction of the limiting rod.

[0011] Furthermore, the limiting rod includes a guiding conical surface to facilitate clamping the second mounting hole of the flexible block into the clamping groove.

[0012] Furthermore, the limiting rod includes an arc chamfer.

[0013] The beneficial effect of this application is that it provides an infusion control switch with higher safety performance. Brief Description of the Drawings

[0014] The drawings constituting a part of this application are used to provide a further understanding of this application, making other features, purposes, and advantages of this application more obvious. The schematic embodiments and descriptions of the drawings of this application are used to explain this application and do not constitute an improper limitation of this application.

[0015] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the elements and components are not necessarily drawn to scale.

[0016] In the drawings:

[0017] Figure 1 is the overall schematic diagram according to the embodiment of this application;

[0018] Figure 2 is the structural schematic diagram of a part of the embodiment, mainly showing the structure of the connecting block;

[0019] Figure 3 is the exploded view of a part of the embodiment, mainly showing the structures of the clamping groove and the insertion part;

[0020] Figure 4 is the structural schematic diagram of a part of the embodiment, mainly showing the structure of the first protrusion;

[0021] Figure 5 is the structural schematic diagram of a part of the embodiment, mainly showing the state of the flexible block after extrusion;

[0022] Figure 6 A schematic structural diagram of a part of an embodiment, mainly showing the structures of an infusion channel and a limiting hole.

[0023] Reference numerals:

[0024] 100, infusion control switch; 101, infusion tube; 101a, infusion channel; 101b, limiting hole; 102, connecting block;

[0025] 102a, guiding hole; 103, limiting rod; 103a, first protrusion; 103b, second protrusion; 103c, insertion part;

[0026] 103d, clamping groove; 103e, annular groove; 103f, guiding conical surface; 103g, arc chamfer; 104, flexible block; 104a, first mounting hole; 104b, second mounting hole. Detailed implementation manners

[0027] Hereinafter, embodiments of the present disclosure will be described in more detail with reference to the drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0028] In addition, it should be noted that for the sake of convenience of description, only parts related to the relevant invention are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0029] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence relationship of the functions performed by these devices, modules or units.

[0030] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0031] Hereinafter, the present disclosure will be described in detail with reference to the drawings and in combination with the embodiments.

[0032] Refer to Figure 1-6, an infusion control switch 100, comprising: an infusion tube 101, a connection block 102, a limiting rod 103 and a flexible block 104. The infusion tube 101 has an infusion channel 101a. The connection block 102 is fixedly connected to the infusion tube 101. The limiting rod 103 is horizontally slidably connected to the connection block 102. Specifically, the connection block 102 is provided with a guiding hole 102a extending along the axial direction of the limiting rod 103, and a part of the limiting rod 103 is located in the guiding hole 102a and moves along the axial direction of the guiding hole 102a. The flexible block 104 is fixedly connected to the connection block 102.

[0033] Wherein, the limiting rod 103 includes a first protrusion 103a, a second protrusion 103b and an insertion part 103c. The first protrusion 103a and the second protrusion 103b form a clamping groove 103d. The flexible block 104 includes a first mounting hole 104a and a second mounting hole 104b. The first mounting hole 104a is located on the circumference of the connection block 102, and the second mounting hole 104b is located in the clamping groove 103d. The infusion tube 101 includes a limiting hole 101b, and the limiting hole 101b communicates with the infusion channel 101a. The insertion part 103c is a columnar structure, and the insertion part 103c is inserted into the limiting hole 101b to close the infusion channel 101a. The flexible block 104 is made of rubber with a certain hardness.

[0034] One end of the limiting rod 103 is provided with an annular groove 103e for facilitating the pulling of the limiting rod 103. There are a plurality of annular grooves 103e, and the plurality of annular grooves 103e are equidistantly distributed along the axial direction of the limiting rod 103. The limiting rod 103 includes a guiding conical surface 103f for facilitating the clamping of the second mounting hole 104b of the flexible block 104 into the clamping groove 103d. The limiting rod 103 includes an arc chamfer 103g. When infusion is needed, only need to squeeze the flexible block 104, and the flexible block 104 drives the limiting rod 103 to move through the clamping groove 103d, so that the insertion part 103c of the limiting rod 103 disengages from the limiting hole 101b, then the liquid can be transported from the infusion channel 101a to the patient. When the infusion is completed, release the flexible block 104. Because the flexible block 104 is made of rubber with a certain hardness, the flexible block 104 will return to its initial position, so that the limiting part is inserted into the limiting hole 101b, thereby blocking the infusion channel 101a and closing the infusion channel 101a, preventing the phenomenon of air entering the human body or blood backflow, and having a higher safety performance.

[0035] Working process: When infusion is needed, only need to squeeze the flexible block 104 (refer to Figure 5-6) The flexible block 104 drives the limit rod 103 to move through the card slot 103d (the limit rod 103 can also be pulled), so that the insertion part 103c of the limit rod 103 disengages from the limit hole 101b, and then the liquid can be transported from the infusion channel 101a to the patient. After the infusion is completed, release the flexible block 104. Since the flexible block 104 is made of rubber with a certain hardness, the flexible block 104 will return to its initial position, so that the limiting part is inserted into the limit hole 101b, thereby blocking the infusion channel 101a and closing the infusion channel 101a to prevent air from entering the human body or blood from flowing back, with higher safety performance.

[0036] The above description is only some preferred embodiments of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) disclosed in the embodiments of the present disclosure that have similar functions.

Claims

1. An infusion control switch, comprising: An infusion tube having an infusion channel; Features: The infusion control switch also includes: A connecting block, fixedly connected to the infusion tube; A limit rod, horizontally slidably connected to the connection block; A flexible block fixedly connected to the connecting block; Among them, the limiting rod includes a first protrusion, a second protrusion and an insertion portion; the first protrusion and the second protrusion form a slot; the flexible block includes a first mounting hole and a second mounting hole; the first mounting hole is located on the circumference of the connecting block; the second mounting hole is located in the slot; the infusion tube includes a limiting hole; the limiting hole is connected to the infusion channel; the insertion portion is inserted into the limiting hole to close the infusion channel.

2. The infusion control switch according to claim 1, characterized in that: The connecting block is provided with a guide hole extending along the axial direction of the limiting rod; The limiting rod is partially located in the guide hole and moves along the axial direction of the guide hole.

3. The infusion control switch according to claim 2, characterized in that: An annular groove is provided at one end of the limiting rod to facilitate pulling the limiting rod.

4. The infusion control switch according to claim 3, characterized in that: The annular groove is provided with a plurality of; The plurality of annular grooves are equidistantly distributed along the axial direction of the limiting rod.

5. The infusion control switch according to claim 4, characterized in that: The limiting rod comprises a guiding cone surface, which facilitates the second mounting hole of the flexible block to be clamped into the clamping groove.

6. The infusion control switch according to claim 5, characterized in that: The limiting rod includes an arc chamfer.

Images