Rotatable handle of needleless injector

Abstract

The utility model discloses a rotatable handle of a needleless injector, which relates to the technical field of needleless injectors, and adopts the technical scheme that the rotatable handle comprises a needleless injector main body and further comprises a fixing ring fixedly arranged on the needleless injector main body; the movable ring is arranged on the outer side of the fixed ring and can freely rotate relative to the fixed ring; and the holding arm is rotationally arranged on the movable ring. According to the needleless injector, the holding arm is rotationally arranged on the movable ring, and meanwhile, the movable ring is rotationally arranged on the fixed ring, so that the angle of the holding arm can be adjusted in the horizontal direction and the vertical direction relative to the needleless injector main body, and a patient can conveniently adjust a holding mode suitable for the patient to complete independent injection.

Description

Technical Field

[0001] The utility model relates to the technical field of needle-free syringes, in particular to a rotatable handle of a needle-free syringe. Background Art

[0002] A needle-free syringe is a medical device that abandons the traditional needle injection method and instead uses high-pressure jet technology to deliver drugs into the body, thus achieving the effect of painless injection. This needle-free syringe is often suitable for subcutaneous injection, so it can assist patients in completing the injection work by themselves. However, when injecting alone, it is difficult to successfully complete the independent injection process for different injection sites on the body with a single rod grip.

[0003] In view of this, a design or technical improvement is now proposed to solve the above problems.

[0004] The above content is only used to assist in understanding the technical solution of the present invention and does not mean that the above content is the closest prior art. Utility Model Content

[0005] The purpose of the utility model is to solve the above-mentioned deficiencies and provide a rotatable handle for a needle-free syringe.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A rotatable handle for a needle-free syringe comprises a needle-free syringe body, a fixed ring fixedly arranged on the needle-free syringe body, a movable ring arranged outside the fixed ring and freely rotatable relative to the fixed ring, and a holding arm rotatably arranged on the movable ring.

[0008] Furthermore, the movable ring includes a side ring plate that slides on the side wall of the fixed ring and a limiting ring plate that is arranged on the upper and lower sides of the side ring plate, extends inward and slides on the upper and lower end surfaces of the fixed ring.

[0009] Furthermore, the holding arm is integrally formed and includes a holding portion for holding, two sets of connecting portions provided on the holding portion, and a movable shaft provided on the connecting portion and movably connected to the movable ring.

[0010] Furthermore, a movable bead is provided on a side of the movable shaft away from the connecting portion, and a limiting ring groove for limiting the sliding of the movable bead is provided on the movable ring.

[0011] Furthermore, the limiting ring plate is threadedly connected with a fastening bolt that abuts against the outer surface of the movable ring.

[0012] Furthermore, the holding arm is made of memory metal material, wherein the holding portion is U-shaped, and an inverted V-shaped supporting arc piece is provided on the inner side thereof, the two ends of the supporting arc piece are fixed on the two side walls of the U-shape and are made of the same material as the holding arm, and a supporting arc plate is provided on the side of the movable ring facing the supporting arc piece, and rubber is provided on the opposite surfaces of the supporting arc piece and the supporting arc plate.

[0013] Compared with the prior art, the beneficial effect of this solution is that the utility model is arranged on the movable ring by rotating the holding arm, and the movable ring is rotated on the fixed ring, so that the holding arm can be adjusted in the horizontal and vertical directions relative to the needle-free syringe body, thereby facilitating the patient to adjust the holding method suitable for himself to complete independent injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0015] Figure 1 This is a frontal perspective schematic diagram of the present invention;

[0016] Figure 2 This is a schematic structural diagram of the rotatable handle in the present utility model;

[0017] Figure 3 This is a schematic diagram of the disassembly of the structure of the fixed ring and the movable ring in the utility model;

[0018] Figure 4 It is a cross-sectional schematic diagram of the movable ring in the utility model;

[0019] Figure 5 This is a schematic diagram of the clamping connection between the movable clamping bead and the limiting ring groove in the present utility model;

[0020] Figure 6 This is a schematic structural diagram of the holding arm of the present invention.

[0021] In the figure: 1. needle-free syringe body; 2. fixing ring; 21. movable ring; 22. holding arm; 3. side ring plate; 31. limiting ring plate; 4. holding part; 41. connecting part; 42. movable shaft; 5. movable card bead; 51. limiting ring groove; 6. fastening bolt; 7. supporting arc piece; 71. supporting arc plate. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] like Figure 1-6 The rotatable handle of a needle-free syringe shown in the figure includes a needle-free syringe body 1, and also includes a fixed ring 2, which is fixedly set on the needle-free syringe body 1; a movable ring 21, which is set on the outside of the fixed ring 2 and can rotate freely relative to the fixed ring 2; a holding arm 22, which is rotatably set on the movable ring 21, and the fixation between the fixed ring 2 and the needle-free syringe body 1 can be fixed by thermoplasticity or fasteners, so that it forms a whole with the needle-free syringe body 1, and then the relative rotation of the movable ring 21 on the outside of the fixed ring 2 can adjust the horizontal angle of the holding arm 22, and it itself can rotate relative to the movable ring 21 to adjust the vertical angle, thereby achieving a full range of angle adjustment effect, so that different patients can implement their own adapted holding method for injection.

[0024] In one embodiment, the movable ring 21 includes a side ring plate 3 that slides on the side wall of the fixed ring 2 and a limiting ring plate 31 that is arranged on the upper and lower sides of the side ring plate 3 and extends inward and slides with the upper and lower end surfaces of the fixed ring 2. The movable ring 21 is engaged with the fixed ring 2 through the limiting ring plates 31 at the upper and lower ends, so that it is limited to the outside of the fixed ring 2 and can rotate freely.

[0025] In one embodiment, the holding arm 22 is integrally formed and includes a holding portion 4 for holding, two sets of connecting portions 41 provided on the holding portion 4, and a movable shaft 42 provided on the connecting portion 41 and movably connected to the movable ring 21. The overall shape of the holding arm 22 is similar to that of a slingshot, and the connecting portions 41 at both ends are rotatably connected to the movable ring 21 through the movable shaft 42. Because the fixing ring 2 is fixed to the needle-free syringe body 1, the holding portion 4 can be rotated relative to the needle-free syringe body 1 to change the angle between the two.

[0026] In one embodiment, a movable bead 5 is provided on the side of the movable shaft 42 away from the connecting portion 41, and a limiting ring groove 51 is provided on the movable ring 21 for limiting the sliding of the movable bead 5. The movable shaft 42 is movably connected with the fixed ring 2 through the movable bead 5, and then a connecting structure is provided between the holding arm 22 and the fixed ring 2 and the movable ring 21, thereby improving the connection stability between the three.

[0027] In one embodiment, a fastening bolt 6 is threadedly connected to the limiting ring plate 31 and engages with the outer surface of the movable ring 21. By rotating the fastening bolt 6, the outer surface of the fixed ring 2 can be tightened, so that the movable ring 21 cannot rotate relative to the fixed ring 2, so that it can be fixed after the holding arm 22 is adjusted to a horizontal position.

[0028] In one embodiment, the holding arm 22 is made of memory metal, wherein the holding portion 4 is U-shaped, and an inverted V-shaped supporting arc piece 7 is provided on the inner side thereof. The two ends of the supporting arc piece 7 are fixed on the two side walls of the U-shape and are made of the same material as the holding arm 22. The movable ring 21 is provided with a supporting arc plate 71 on the side opposite to the supporting arc piece 7. Rubber is provided on the opposite surfaces of the supporting arc piece 7 and the supporting arc plate 71. When the holding arm 22 is rotated vertically relative to the movable ring 21, the supporting arc piece 7 is clamped inward by pinching the holding portion 4, and then its protruding end will be pressed against the outer surface of the supporting arc plate 71, and then the friction force is used to stop the rotation of the holding portion 4, so that the angle of the holding portion 4 can be conveniently fixed.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. A rotatable handle for a needle-free syringe, comprising a needle-free syringe body (1), characterized in that: include: A fixing ring (2) is fixedly arranged on the needle-free syringe body (1); A movable ring (21) is arranged outside the fixed ring (2) and can rotate freely relative to the fixed ring (2); The holding arm (22) is rotatably arranged on the movable ring (21).

2. The rotatable handle of the needle-free injector according to claim 1, characterized in that: The movable ring (21) comprises a side ring plate (3) that slides on the side wall of the fixed ring (2) and a limiting ring plate (31) that is arranged on the upper and lower sides of the side ring plate (3) and extends inward and slides on the upper and lower end surfaces of the fixed ring (2).

3. The rotatable handle of the needle-free injector according to claim 1 or 2, characterized in that: The holding arm (22) is integrally formed and comprises a holding portion (4) for holding, two groups of connecting portions (41) arranged on the holding portion (4), and a movable shaft (42) arranged on the connecting portion (41) and movably connected to the movable ring (21).

4. The rotatable handle of the needle-free injector according to claim 3, characterized in that: A movable bead (5) is provided on one side of the movable shaft (42) away from the connecting portion (41), and a limiting ring groove (51) for limiting the sliding of the movable bead (5) is provided on the movable ring (21).

5. The rotatable handle of the needle-free injector according to claim 2, characterized in that: The limiting ring plate (31) is threadedly connected with a fastening bolt (6) that abuts against the outer surface of the movable ring (21).

6. The rotatable handle of the needle-free injector according to claim 5, characterized in that: The holding arm (22) is made of memory metal material, wherein the holding portion (4) is U-shaped, and an inverted V-shaped supporting arc piece (7) is provided on the inner side thereof, the two ends of the supporting arc piece (7) are fixed on the two side walls of the U-shape and are made of the same material as the holding arm (22), the movable ring (21) is provided with a supporting arc plate (71) on the side facing the supporting arc piece (7), and rubber is provided on the opposite surfaces of the supporting arc piece (7) and the supporting arc plate (71).

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