Quantitative spray administration device
A technology of drug delivery device and spray head, which can be used in hypnosis devices, medical devices, nebulizers for treatment, etc. It can solve the problems that medical staff are difficult to control the dosage of drugs, and achieve easy operation, fast absorption, spraying, etc. large area effect
Pending Publication Date: 2020-08-14
SHENZHEN LONGGANG DISTRICT PEOPLES HOSPITAL
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Most of the children's sprays on the market now use a spray head to connect with ordinary drug syringes, making it difficult for medical staff to control the dosage
Method used
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Embodiment Construction
[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0029] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0030] It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further d...
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The invention belongs to the technical field of medical assistant equipment and discloses a quantitative spray administration device. The quantitative spray administration device comprises an injection syringe, wherein a spray head and an injection handle are arranged on the injection syringe; a piston is arranged in the injection syringe and is arranged on a piston shaft; arc surfaces which are relatively arranged are arranged on side walls of the piston shaft and are provided with external threads; the piston shaft is movably sleeved with a quantitative handle, and a round hole is formed inthe quantitative handle; inner threads which are relatively arranged are arranged on the inner wall of the round hole; and the quantitative handle is locked when the quantitative handle is moved to the inner threads and matched with the external threads. The quantitative spray administration device has the same mode with normal drug drawing and injecting modes during non-quantitative administration; when quantitative administration is required, the quantitative handle is slid to a corresponding scale and is rotated at 90 degrees, and the quantitative handle is locked; and the quantitative handle stops injection when injection reaches a preset dosage to achieve the quantitative effect, and the operation is simple and convenient.
Description
technical field [0001] The invention belongs to the technical field of medical auxiliary equipment, and in particular relates to a quantitative spray drug delivery device. Background technique [0002] Oral or nasal non-invasive drug delivery before surgery in children is very popular among children and their families. Due to the first-pass effect of drugs, oral drug administration has low bioavailability, slow onset, and large dosage. Therefore, Oral administration is not ideal as a pediatric anesthesia predrug. However, when administered through the nasal cavity, the medicinal liquid enters the throat through the posterior nasal passage, which reduces the bioavailability of the drug. At present, the ideal way of drug administration before anesthesia for children is through oral or nasal mucosal spray administration, which is absorbed through the oral or nasal mucosa with rich blood vessels, without the first-pass effect of the liver. It has the advantages of small amount...
Claims
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IPC IPC(8): A61M11/00A61M19/00A61M31/00
CPCA61M11/007A61M19/00A61M31/00A61M2202/048A61M2210/0618A61M2210/0625A61M2202/0007A61M2210/005
Inventor 纪宏新何世琼
Owner SHENZHEN LONGGANG DISTRICT PEOPLES HOSPITAL