Automatic retraction device for a floating needle needle holder

Abstract

The utility model relates to the technical field of float needle, concretely is a kind of float needle needle holder automatic retraction device, including hand-held handle, the one end of hand-held handle is installed with sleeve, float needle is slidably arranged in sleeve, the side of hand-held handle is installed with retraction button, the one end of hand-held handle away from sleeve is installed with eject button, the inside of hand-held handle is installed with fixed plate, the one end of float needle is installed with push rod, the outer end of push rod is connected with eject button, push rod is installed with eject spring outside one end close to push rod. In the float needle needle holder automatic retraction device, user can push out float needle to the required position by pressing eject button, with the force of eject spring, easily, ensure the accuracy of treatment. After treatment is completed, only need to press retraction button, lifting rod is lowered under the action of reset spring, through the ingenious separation of clamping groove and clamping block, the quick, safe retraction of push rod and float needle is realized, and the operation difficulty and potential safety risk are significantly reduced.

Description

Technical Field

[0001] This utility model relates to the field of floating needle technology, specifically to an automatic retraction device for a floating needle holder. Background Technology

[0002] In floating needle therapy, the use of a floating needle holder is crucial for ensuring the accuracy and comfort of the treatment process. Traditional floating needle holders typically lack an automatic retraction mechanism, which may result in the floating needle not being able to stably maintain the desired position during operation, or the floating needle not being able to retract quickly and safely after treatment, thus increasing the difficulty of operation and potential safety risks. Furthermore, after repeated use, the accuracy and stability of traditional holders may decrease due to wear and fatigue, affecting the treatment effect. Therefore, designing a floating needle holder with an automatic retraction function to improve the convenience, safety, and accuracy of operation has become an urgent problem to be solved in the field of floating needle technology. Utility Model Content

[0003] The purpose of this invention is to provide an automatic retraction device for a floating needle holder, in order to solve the problem that traditional floating needle holders, as mentioned in the background art, usually lack an automatic retraction mechanism. This may result in the floating needle not being able to be stably held in the required position during operation, or the floating needle not being able to retract quickly and safely after treatment, thereby increasing the difficulty of operation and potential safety risks.

[0004] To achieve the above objectives, this utility model provides an automatic retraction device for a floating needle holder, including a handle, a sleeve installed at one end of the handle, a floating needle slidably disposed inside the sleeve, a retraction button installed on one side of the handle, a pop-out button installed at the end of the handle away from the sleeve, a fixing plate installed inside the handle, a push rod installed at one end of the floating needle, the outer end of the push rod connected to the pop-out button, a pop-out spring installed on the outside of the end of the push rod near the push rod, one end of the pop-out spring connected to the fixing plate, and the other end connected to the push rod.

[0005] Preferably, the bottom of the push rod is provided with a groove, a locking spring is installed inside the groove, a locking block is installed at the outer end of the locking spring, the retraction button includes a fixing sleeve, a lifting rod is provided on the inner side of the fixing sleeve, a strip hole is provided in the middle of the lifting rod, a return spring is installed at the bottom of the lifting rod, a slot is provided at the bottom of the strip hole, the push rod passes through the strip hole, and when the push rod moves horizontally, it engages with the locking block through the slot.

[0006] Preferably, one side of the card block has an arc surface structure.

[0007] Preferably, the upper two sides of the fixed sleeve are provided with sliding grooves, and the outer walls of the two sides of the lifting rod are equipped with sliders, which slide in cooperation with the sliding grooves.

[0008] Preferably, the length of the strip hole is twice the diameter of the push rod cross-section, and both the upper and lower ends of the strip hole are semi-circular structures.

[0009] Preferably, a pressing plate is installed on the top of the lifting rod.

[0010] Preferably, the sleeve is made of silicone material and one end is connected to the fixing plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] In this floating needle holder's automatic retraction mechanism, the user can easily push the floating needle to the desired position by pressing the pop-out button, utilizing the force of the pop-out spring to ensure treatment accuracy. After treatment, simply pressing the retraction button causes the lifting rod to descend under the action of the return spring. Through the ingenious separation of the slot and the locking block, the push rod and floating needle are quickly and safely retracted, significantly reducing operational difficulty and potential safety risks. Furthermore, this device uses high-quality silicone material for the sleeve, which not only improves user comfort but also ensures the stability and accuracy of the floating needle during sliding. Even after multiple uses, it maintains good performance, effectively improving the efficacy of floating needle therapy and patient satisfaction. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0015] Figure 3 This is a schematic diagram of the retractable button in this utility model;

[0016] The meanings of the labels in the diagram are as follows:

[0017] 1. Handle; 11. Fixing plate; 2. Sleeve; 3. Floating pin; 31. Push rod; 313. Locking block; 32. Pop-out spring; 4. Retraction button; 41. Fixing sleeve; 411. Slide groove; 42. Lifting rod; 421. Strip hole; 4211. Locking groove; 422. Slider; 43. Pressing plate; 44. Return spring; 5. Pop-out button. 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] This utility model provides an automatic retraction device for a floating needle holder, such as... Figures 1-3 As shown, the device includes a handle 1, with a sleeve 2 attached to one end. A float needle 3 is slidably disposed within the sleeve 2. A retraction button 4 is mounted on one side of the handle 1, and a pop-out button 5 is mounted on the end of the handle 1 away from the sleeve 2. A fixing plate 11 is installed inside the handle 1. A push rod 31 is mounted on one end of the float needle 3, with its outer end connected to the pop-out button 5. A pop-out spring 32 is mounted on the outer side of the push rod 31 near the push rod 31, with one end connected to the fixing plate 11 and the other end connected to the push rod 31. This device uses the handle 1 as the main support and guides the float needle 3 through the sleeve 2, ensuring the straightness and stability of the float needle during extension and retraction. The retraction button 4 on one side of the handle 1 and the pop-out button 5 at the end away from the sleeve 2 provide a convenient operating interface for the user.

[0020] When the user needs to eject the float needle 3, simply press the eject button 5. The push rod 31 will smoothly eject the float needle from the sleeve 2. At this time, the ejection spring 32 acts as a power source, providing a stable ejection force to ensure that the float needle accurately reaches the required position. The push rod 31 is positioned by the cooperation of the slot 4211 and the locking block 313. When the treatment is completed or the float needle needs to be retracted, the user only needs to press the retraction button 4. Through the ingenious cooperation of the internal mechanical structure, the float needle can be quickly and automatically retracted, greatly improving the convenience and safety of operation.

[0021] Furthermore, the fixing plate 11 installed inside the handle 1 not only provides a stable support point for the ejection spring 32, but also ensures the structural strength and stability of the entire device. Overall, this floating needle holder's automatic retraction device, through its unique design, achieves stable ejection and automatic retraction of the floating needle, improving the accuracy and safety of floating needle therapy and providing medical staff with a more convenient and efficient operating experience.

[0022] In this embodiment, the bottom of the push rod 31 is provided with a groove, a locking spring is installed inside the groove, and a locking block 313 is installed at the outer end of the locking spring. The retraction button 4 includes a fixing sleeve 41, a lifting rod 42 is provided on the inner side of the fixing sleeve 41, a strip hole 421 is provided in the middle of the lifting rod 42, a return spring 44 is installed at the bottom of the lifting rod 42, and a slot 4211 is provided at the bottom of the strip hole 421. The push rod 31 passes through the strip hole 421. When the push rod 31 moves horizontally, it engages with the locking block 313 through the slot 4211.

[0023] Specifically, one side of the card block 313 has an arc-shaped structure, which makes it easy for the card block 313 to be inserted into the card slot 4211.

[0024] Furthermore, the upper two sides of the fixed sleeve 41 are provided with sliding grooves 411, and the outer walls of the two sides of the lifting rod 42 are equipped with sliders 422. The sliders 422 slide in cooperation with the sliding grooves 411 to facilitate the stable sliding of the lifting rod 42.

[0025] Furthermore, the length of the strip hole 421 is twice the diameter of the push rod 31, and both the upper and lower ends of the strip hole 421 are semi-circular structures, which facilitates the vertical relative sliding of the strip hole 421 and the push rod 31.

[0026] Furthermore, a pressing plate 43 is installed on the top of the lifting rod 42 to facilitate pressing the lifting rod 42.

[0027] Furthermore, the sleeve 2 is made of silicone material, with one end connected to the fixing plate 11, which facilitates the protection of the floating needle 3.

[0028] When using the automatic retraction device of this utility model for the floating needle holder, first gently press the pop-out button 5. This action transmits force to the floating needle 3 through the push rod 31, causing it to begin sliding outward. Simultaneously, the pop-out spring 32, acting as a power source, has one end fixed to the fixed plate 11 and the other end connected to the push rod 31, providing a stable pushing force for the extension of the floating needle. During the extension process, the locking spring and locking block 313 in the groove at the bottom of the push rod 31 play a positioning role. When the push rod 31 moves horizontally, the locking block 313 engages in the locking groove 4211 at the bottom of the strip hole 421 of the lifting rod 42, ensuring that the floating needle can stably remain in the desired position.

[0029] When treatment is complete or the floating needle needs to be retracted, the user presses the retraction button 4. This action causes the lifting rod 42 to move downward under the action of the return spring 44, simultaneously disengaging the slot 4211 from the locking block 313. At this time, due to the continued elasticity of the spring 32, but in the opposite direction, it pulls the push rod 31 and the floating needle 3 back to their original positions, achieving rapid and automatic retraction of the floating needle. During the pressing of the retraction button 4, the length of the strip hole 421 and the semi-circular structure design at both ends, as well as the sliding cooperation between the sliders 422 on both sides of the lifting rod 42 and the sliding groove 411, ensure smooth and unobstructed relative sliding between the push rod 31 and the lifting rod 42.

[0030] Furthermore, the sleeve 2 is made of silicone material and is connected to the fixing plate 11 at one end. This not only protects the floating needle 3 but also ensures the straightness and stability of the floating needle during its extension and retraction. Through its unique design and working principle, the entire device achieves stable extension and automatic retraction of the floating needle, improving the accuracy and safety of floating needle therapy and providing medical personnel with a more convenient and efficient operating experience.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic retraction device for a floating needle holder, comprising a hand handle (1), characterized in that: A sleeve (2) is installed at one end of the handle (1), and a float (3) is slidably disposed inside the sleeve (2). A retraction button (4) is installed on one side of the handle (1), and a pop-out button (5) is installed at the end of the handle (1) away from the sleeve (2). A fixing plate (11) is installed inside the handle (1). A push rod (31) is installed at one end of the float (3), and the outer end of the push rod (31) is connected to the pop-out button (5). A pop-out spring (32) is installed on the outside of the end of the push rod (31) near the push rod (31). One end of the pop-out spring (32) is connected to the fixing plate (11), and the other end is connected to the push rod (31).

2. The automatic retraction device for the floating needle holder according to claim 1, characterized in that: The bottom of the push rod (31) is provided with a groove, and a locking spring is installed inside the groove. A locking block (313) is installed at the outer end of the locking spring. The retraction button (4) includes a fixed sleeve (41). A lifting rod (42) is provided on the inner side of the fixed sleeve (41). A strip hole (421) is provided in the middle of the lifting rod (42). A reset spring (44) is installed at the bottom of the lifting rod (42). A slot (4211) is provided at the bottom of the strip hole (421). The push rod (31) passes through the strip hole (421). When the push rod (31) moves horizontally, it engages with the locking block (313) through the slot (4211).

3. The automatic retraction device for the floating needle holder according to claim 2, characterized in that: One side of the card block (313) has an arc surface structure.

4. The automatic retraction device for the floating needle holder according to claim 2, characterized in that: The upper two sides of the fixed sleeve (41) are provided with sliding grooves (411), and the outer walls of the two sides of the lifting rod (42) are equipped with sliders (422), and the sliders (422) slide in cooperation with the sliding grooves (411).

5. The automatic retraction device for the floating needle holder according to claim 2, characterized in that: The length of the strip hole (421) is twice the diameter of the push rod (31) cross section, and both the upper and lower ends of the strip hole (421) are semi-circular structures.

6. The automatic retraction device for the floating needle holder according to claim 2, characterized in that: A pressing plate (43) is installed on the top of the lifting rod (42).

7. The automatic retraction device for the floating needle holder according to claim 1, characterized in that: The sleeve (2) is made of silicone material and one end is connected to the fixing plate (11).

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