Medical spraying device with scales and controllable metering

Abstract

The utility model relates to the field of medical instruments, in particular to a medical spraying device with scales and controllable metering, which comprises a syringe, a spraying head and a piston rod. The spray head is detachably connected with the syringe; a piston of the piston rod is arranged in the syringe, and a push plate pushed by a palm is arranged at the tail of the piston rod; the syringe is further provided with an auxiliary push ring, a tooth groove is formed in the syringe in the radial direction, a rack is arranged in the tooth groove, and triangular teeth matched with the rack are elastically arranged in the auxiliary push ring. The auxiliary push ring is further provided with a pressing block enabling the triangular teeth to be separated from the rack. According to the medical spraying device with the scales and the controllable metering, the spraying operation can be completed with one hand, the mode that palm thenar muscle exerts force and the hand holds the injection cylinder is adopted in the spraying process, operation is more convenient and stable, the auxiliary push ring structure with the adjustable position is further provided, and the medical spraying device is convenient to use. And the spraying stability of the device is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument field especially is concerned with a medical spray device with scale controllable measurement. BACKGROUND

[0002] The spray is the short name of spray equipment. The spray is the device that utilizes air suction and becomes mist, evenly sprays to other object on the liquid of water or other liquid, is composed by compressed air's device and thin pipe, nozzle etc. The common medical spray on the market at present is mostly electric spray, is equipped with spray structure and liquid storage bottle / capsule, and the stability is poor when single hand operation. Although the syringe type spray can operate single hand, but the syringe is usually suspended when spraying, and the resistance of piston rod is big when operating, and it is difficult to operate single hand. SUMMARY

[0003] In order to improve the technical problem mentioned above, the utility model provides a medical spray device with scale controllable measurement, it is characterized by: including injection cylinder, spray head and piston rod, the spray head is detachably connected with injection cylinder, the piston rod piston is arranged in injection cylinder, and the tail of piston rod is equipped with the push plate for palm pushing.

[0004] Further, the push plate includes a concave arc surface connected to the tail of the piston rod and convex arc surfaces on both sides of the concave arc surface.

[0005] Further, the injection cylinder is provided with an auxiliary push ring.

[0006] Further, the injection cylinder is provided with a gear slot in the radial direction, a gear rack is arranged in the gear slot, and a triangular tooth matched with the gear rack is elastically arranged in the auxiliary push ring; the auxiliary push ring is further provided with a pressing block for disengaging the triangular tooth from the gear rack.

[0007] Further, the spray head includes a connecting sleeve, a spray rod communicating with the connecting sleeve, and a plurality of spray heads arranged on one side of the spray rod; the injection end of the injection cylinder is provided with a connecting head, and the connecting head and the connecting sleeve are threadedly connected.

[0008] Further, the injection cylinder is provided with a scale line on the outer periphery.

[0009] In summary, the utility model has at least one of the following beneficial effects:

[0010] The medical spray device with scale controllable measurement provided by the utility model can complete the spray operation with one hand, uses the thenar muscle of the palm to generate force when spraying, and holds the injection cylinder with the palm, so that the operation is more convenient and stable.

[0011] The utility model further provides an auxiliary push ring structure with adjustable position, the fingers are resisted below the auxiliary push ring to avoid slipping, and the stability of the device when spraying is further improved.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structure schematic view of the utility model;

[0013] Figure 2 It is a structure view of injection cylinder 1;

[0014] Figure 3 It is a structure view of push plate;

[0015] Figure 4 It is a structure schematic view inside guide groove 43.

[0016] In the drawing:

[0017] Injection cylinder 1, tooth groove 11, rack 12, connecting head 13, spray head 2, connecting sleeve 21, spray rod 22, spray port 23, piston rod 3, push plate 31, concave arc surface 311, arc surface 322, auxiliary push ring 4, triangular tooth 41, torsional spring 411, extension rod 412, pressing block 42, guide groove 43, tooth cavity 431, limit block 432. DETAILED DESCRIPTION

[0018] Example 1:

[0019] The application is further described in detail below with reference to the drawings.

[0020] The utility model discloses a single hand operation's medical spray device with scale controllable measurement can, as shown in Figure 1 The utility model discloses a single hand operation's medical spray device with scale controllable measurement can, as shown in

[0021] The utility model discloses a single hand operation's medical spray device with scale controllable measurement can, as shown in

[0022] The connecting sleeve 21 and the connecting head 13 are connected by screw thread in this embodiment, and other conventional connection modes that can ensure sealing and firmness can be used instead. The length of the spray rod 22 in this embodiment is set according to actual requirements, and the arrangement position of the spray port 23 is also set according to spray requirements, which can be linear arrangement on the same side of the spray rod 22, can be arranged around the circumference of the spray rod 22, or can be a combination of the above two.

[0023] Embodiment 2:

[0024] This embodiment provides a piston rod 3 structure that is convenient to use the palm force on the basis of the above-mentioned embodiments. The end of the piston rod 3 extending into the inner cavity of the syringe 1 is provided with a piston matched with the inner cavity of the syringe 1, and the other end of the piston rod 3 is provided with a push plate 31 for palm force. As shown in Figure 2 The push plate 31 is an arc-shaped plate, including a concave arc surface 311 in the middle and convex arc surfaces 322 on both sides of the concave arc surface 311. When in use, the thenar muscle of the palm is in contact with the concave arc surface 311, the thumb is placed at the convex arc surface 322, and the remaining fingers and the palm hold the syringe 1 barrel. Using the thenar muscle of the palm to push and press is more powerful than using the thumb, and holding the syringe with the palm is more stable.

[0025] Embodiment 3:

[0026] On the basis of the above-mentioned embodiments, this embodiment provides an auxiliary structure that holds the syringe more stably. As shown in Figures 3-4 A tooth groove 11 is arranged in the radial direction of the syringe 1, and a rack 12 is arranged in the tooth groove 11. An auxiliary push ring 4 that can move in the radial direction of the syringe 1 is further arranged on the syringe 1, wherein a guide groove 43 is arranged on the inner ring of the auxiliary push ring 4, and the guide groove 43 matches the tooth groove 11 to enable the auxiliary push ring 4 to move in the direction of the tooth groove 11 without rotating. Meanwhile, a triangular tooth 41 that matches the rack 12 is elastically arranged in the guide groove 43, as shown in Figure 4 The triangular tooth 41 is a right-angled triangle, the right-angled end of which is provided with a rotating shaft, the rotating shaft is connected with a tooth cavity 431 in the guide groove 43 through a torsional spring 411, the tooth cavity is provided with a limiting block 432 that limits the downward rotation of the triangular tooth 41, and the upper end of the triangular tooth 43 is a horizontal plane and is in contact with the horizontal plane of the lower end of the rack 12. When the palm holds the syringe, the fingers exert an upward pushing force on the auxiliary push ring 4, the fixed rack 12, the upper plane of the triangular tooth, and the limiting block interact with each other to fix each other, thereby avoiding the movement of the auxiliary push ring 4.

[0027] For different operators and injection needs, the position of the auxiliary push ring 4 needs to be adjusted. When the auxiliary push ring 4 needs to move downward relative to the injection barrel 1, the triangular tooth 41 inclined surface is in contact with the rack 12 inclined surface, and the triangular tooth 41 is rotated upward under the action of the rack 12. When the tooth tips of the two are separated, the position of the auxiliary push ring 4 is adjusted once. When the auxiliary push ring 4 needs to move upward relative to the injection barrel 1, the structure of the pressing block 42 needs to be used. As shown in Figure 4 The pressing block 42 is in the form of a T-shaped structure, and the top of the T-shaped structure is used for the operator to press the auxiliary push ring 4. The lower end of the T-shaped structure is in contact with the extension rod on the triangular tooth 41. When the pressing block 42 is pressed, the lower end of the T-shaped structure pushes the extension rod 412, and the triangular tooth 41 is rotated upward. When the tooth tips of the triangular tooth 41 and the rack 12 are separated, the auxiliary push ring 4 can move freely in the radial direction. When the auxiliary push ring 4 is moved to the appropriate position, the pressing block 42 is released, and the position of the pressing block 42 is restored under the action of the spring between the pressing block 42 and the auxiliary push ring 4. The torsion spring 411 rotates the triangular tooth 41 to the upper end surface, thereby fixing the position of the auxiliary push ring 4.

[0028] The medical spray device with a scale controlled metering provided by the present application can complete the spray operation with one hand. The palm thenar muscle is used to generate power during spraying, and the palm holds the injection barrel. The operation is more convenient and stable. The present application also provides an auxiliary push ring 4 structure with adjustable position, which further improves the stability of the device during spraying.

[0029] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, any equivalent changes made in accordance with the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A medical spray device with graduated controllable metering, characterized in that: Including injection cylinder (1), spray head (2) and piston rod (3);The spray head (2) is detachably connected with the injection cylinder (1);The piston rod (3) piston is arranged in the injection cylinder (1), and the tail of the piston rod (3) is provided with a push plate (31) for palm pushing; The push plate (31) includes concave arc surface (311) connected with the tail of the piston rod (3) and convex arc surface (322) on both sides of the concave arc surface (311); The injection cylinder (1) is provided with an auxiliary push ring (4); The injection cylinder (1) is radially provided with a gear slot (11), the gear slot (11) is provided with a rack (12), and the auxiliary push ring (4) is elastically provided with a triangular tooth (41) matched with the rack (12);The auxiliary push ring (4) is further provided with a pressing block (42) for making the triangular tooth (41) and the rack (12) disengage.

2. A medical spray device with a graduated controllable metering according to claim 1, characterized in that: The spray head (2) includes a connecting sleeve (21), a spray rod (22) communicated with the connecting sleeve (21) and a plurality of spray openings (23) arranged on one side of the spray rod (22);The injection end of the injection cylinder (1) is provided with a connecting head (13), and the connecting head (13) and the connecting sleeve (21) are screw connected.

3. A medical spray device with a graduated controllable metering according to claim 2, characterized in that: The injection cylinder (1) is provided with scale lines on the outer periphery.

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