A retractable infusion set

Abstract

This utility model relates to the field of infusion set technology, specifically a telescopic infusion set, including a main body with a spiral tubing mounted on it. A telescopic spring is fixed to the outer wall of the spiral tubing, which is located in the middle of the main body. A counterweight is fixed to the bottom of the spiral tubing, and a connecting rope is fixed to the top of the counterweight. A winding device is fixed to the main body, located above the spiral tubing, through which the main body passes. A winding shaft is rotatably connected inside the winding device, and the winding shaft is connected to the winding device via a damping shaft. This telescopic infusion set, by incorporating a spiral tubing and fixing a telescopic spring, enables the extension and retraction of the spiral tubing. Under the action of the counterweight and the winding device, the degree of extension and retraction of the spiral tubing can be adjusted, thus achieving length adjustment of the infusion set and preventing the infusion set from getting caught on other objects during infusion.

Description

Technical Field

[0001] This utility model relates to the field of infusion set technology, specifically to a retractable infusion set. Background Technology

[0002] Infusion sets are a common medical consumable. After sterilization, they establish a channel between the vein and the medication for intravenous infusion. Existing infusion sets have a fixed length and do not have a retractable function. If the infusion set is too long, it may get caught on other objects, which is inconvenient. To address the above problems, this application designs a retractable infusion set. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the existing technology, this utility model provides a telescopic infusion set.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a telescopic infusion set, comprising a main body, a spiral tubing disposed on the main body, a telescopic spring fixed to the outer wall of the spiral tubing, the spiral tubing located in the middle of the main body, a counterweight fixed to the bottom of the spiral tubing, a connecting rope fixed to the top of the counterweight, a winder fixed to the main body, the winder located above the spiral tubing, the main body passing through the winder, a winder shaft rotatably connected inside the winder, the winder shaft being connected to the winder via a damping shaft, a knob rotatably connected to one end of the winder, the knob being fixed to the winder shaft, and one end of the connecting rope passing upward through the winder shaft and fixed and wound around the winder shaft.

[0007] Furthermore, the present invention is improved in that the damping shaft is configured such that its damping friction can withstand the weight of the counterweight, thereby preventing the counterweight from falling downwards solely due to gravity.

[0008] Furthermore, the present invention is improved in that the weight of the counterweight is greater than the elastic force of the stretched spring.

[0009] To prevent slippage during rotation, this utility model is improved by providing anti-slip grooves on the outer wall of the knob and the outer wall of the other end of the winding device.

[0010] (III) Beneficial Effects

[0011] Compared with the prior art, this utility model provides a retractable infusion set, which has the following features:

[0012] Beneficial effects:

[0013] This extendable infusion set, by setting a spiral tubing and fixing a telescopic spring, can realize the extension and retraction of the spiral tubing. Under the action of the counterweight and the retractor, the degree of extension and retraction of the spiral tubing can be adjusted, realizing the length adjustment of the infusion set and avoiding the infusion set from getting caught on other objects during the infusion process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first main view structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the first partial structure of the present utility model;

[0016] Figure 3 This is a second partial structural schematic diagram of the present invention in cross-section.

[0017] In the diagram: 1. Main body; 2. Spiral hose; 3. Telescopic spring; 4. Counterweight; 5. Connecting rope; 6. Winder; 7. Winding shaft; 8. Damping shaft; 9. Knob. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 A retractable infusion set includes a main body 1, on which a spiral tubing 2 is mounted. A telescopic spring 3 is fixed to the outer wall of the spiral tubing 2. The spiral tubing 2 is located in the middle of the main body 1. A counterweight 4 is fixed to the bottom of the spiral tubing 2. A connecting rope 5 is fixed to the top of the counterweight 4. A winding device 6 is fixed to the main body 1, located above the spiral tubing 2. The main body 1 passes through the winding device 6. A winding shaft 7 is rotatably connected inside the device 6. The winding shaft 7 is connected to the winding device 6 via a damping shaft 8. A knob 9 is rotatably connected to one end of the winding device 6. The knob 9 is fixed to the winding shaft 7. One end of the connecting rope 5 passes upward through the winding device 6 and is fixed and wound around the winding shaft 7. The damping shaft 8 is designed to withstand the weight of the counterweight 4 with its damping friction, preventing the counterweight 4 from falling downwards under gravity alone. The weight of the counterweight 4 is greater than the elastic force of the stretched spring 3.

[0020] When using this infusion set, if it needs to be extended, hold the retractor 6 with one hand and the counterweight 4 with the other, and pull the counterweight 4 away from the retractor 6. At this time, the connecting rope 5 pulls the retractor shaft 7 to rotate, and the damping shaft 8 rotates. Simultaneously, the telescopic spring 3 and the spiral tubing 2 are stretched, achieving length extension. Release the retractor 6 and the counterweight 4. Under the action of gravity, the counterweight 4 stretches the telescopic tubing and the spiral tubing 2. Since the elastic force of the telescopic spring 3 after stretching is less than the weight of the counterweight 4, the damping friction of the damping shaft 8 can withstand the force. The counterweight 4 is held in place by gravity, thus fixing its height under the action of the connecting rope 5 and preventing it from stretching automatically under gravity. When the infusion set needs to be retracted, hold the retractor 6 with one hand and the knob 9 with the other. Turning the knob 9 will cause the retractor shaft 7 to rotate, which will then retract the connecting rope 5. The connecting rope 5 will cause the counterweight 4 to move upward. At this time, the telescopic spring 3 returns to its original state, and the spiral hose 2 retracts under the action of the telescopic spring 3. At the same time, the damping shaft 8 keeps the counterweight 4 in place, thus achieving the telescopic function of the infusion set.

[0021] In actual use, it was found that slippage would occur when the take-up retractor 6 and the knob 9 rotate relative to each other. In order to avoid the above problem, in this embodiment, anti-slip grooves are provided on the outer wall of the knob 9 and the outer wall of the other end of the take-up retractor 6.

[0022] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0023] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0024] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A retractable infusion set, comprising a main body (1), characterized in that: A spiral hose (2) is provided on the main body (1). A telescopic spring (3) is fixed on the outer wall of the spiral hose (2). The spiral hose (2) is located in the middle of the main body (1). A counterweight (4) is fixed on the bottom of the spiral hose (2). A connecting rope (5) is fixed on the top of the counterweight (4). A winder (6) is fixed on the main body (1). The winder (6) is located above the spiral hose (2). The main body (1) passes through the winder (6). A winding shaft (7) is rotatably connected inside the winder (6). The winding shaft (7) is connected to the winder (6) through a damping shaft (8). A knob (9) is rotatably connected to one end of the winder (6). The knob (9) is fixed to the winding shaft (7). One end of the connecting rope (5) passes upward through the winder (6), is fixed, and is wound around the winding shaft (7).

2. The retractable infusion set according to claim 1, characterized in that: The damping shaft (8) is configured to withstand the weight of the counterweight (4) by its damping friction, thus preventing the counterweight (4) from falling downwards under gravity alone.

3. The retractable infusion set according to claim 2, characterized in that: The weight of the counterweight (4) is greater than the elastic force of the stretching spring (3) after stretching.

4. The retractable infusion set according to claim 3, characterized in that: Anti-slip grooves are provided on the outer wall of the knob (9) and the outer wall of the other end of the winder (6).

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