Neonatal anaesthetic mask
Patent Information
- Application Number
- CN202520379399.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-03-05
AI Technical Summary
[0002]新生儿是指产后28天内的小儿,在新生儿进行手术时通常采用气管内插管全麻,在进行气管插管前为避免插管对患儿造成不适,需要进行麻醉诱导,现有的新生患儿麻醉诱导方式通常是采用连接麻醉机的面罩紧扣在患儿的口鼻处,患儿通过吸入面罩内的麻醉气体实现麻醉诱导,由于该诱导方式使患儿失去意识所花费的时间较长,吸入麻醉过程中面罩与面部接触的异物感感往往会促使患儿出现恐惧等不良心理,从而会增加患儿出现体动的概率,对麻醉诱导操作造成阻碍,因此降低麻醉诱导花费的时间是新生儿麻醉面罩的一个改进方向
[0013]本实用新型通过将进气管通过软管连接麻醉机进行配套使用,首先将外罩体贴合覆盖到患儿的面部,并使得内罩体靠近患儿的口鼻位置,由麻醉机输出麻醉气体通过进气管和连接管进入到内罩体的内侧,麻醉气体从内罩体再向外罩体内扩散,因此内罩体内具有浓度较高的麻醉气体,由于此时患儿的口鼻靠近甚至部分口鼻伸入到内罩体的内部,因此患儿能够吸入浓度较高的麻醉气体从而缩短麻醉诱导所需的时间,降低外罩体与患儿面部接触导致患儿不适出现体动的概率。
Smart Images

Figure CN224821292U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical devices, specifically to a neonatal anesthesia mask. Background Technology
[0002] Newborns refer to infants within 28 days after birth. When performing surgery on newborns, endotracheal intubation and general anesthesia are usually employed. Before endotracheal intubation, anesthesia induction is necessary to avoid discomfort for the infant. Current methods for inducing anesthesia in newborns typically involve placing a mask connected to an anesthesia machine tightly over the infant's mouth and nose. The infant inhales the anesthetic gas from the mask to achieve induction. Because this method takes a relatively long time to induce unconsciousness, the foreign body sensation of the mask against the face during inhalation often induces fear and other negative psychological states in the infant, increasing the likelihood of movement and hindering the induction process. Therefore, reducing the time required for anesthesia induction is a direction for improvement in neonatal anesthesia masks. Utility Model Content
[0003] The purpose of this invention is to provide a neonatal anesthesia mask. This mask shortens the time required for anesthesia induction by setting an inner mask inside an outer mask and placing the inner mask close to the infant's mouth and nose while releasing a high concentration of anesthetic gas on the inner side of the inner mask. This reduces the probability of discomfort and movement in the infant due to contact between the outer mask and the infant's face.
[0004] The technical solution adopted by this utility model to solve the above problems is:
[0005] A neonatal anesthesia mask includes an outer mask and an inner mask. The outer mask is provided with an air inlet tube, and the inner mask is disposed inside the outer mask. The inner mask and the outer mask are connected by a connecting tube. When the outer mask is fitted to the face of the infant, the inner mask is close to the infant's mouth and nose.
[0006] In the above technical solution, preferably, a connecting mechanism is provided between the inner cover and the outer cover, and the outer cover is slidably disposed inside the inner cover through the connecting mechanism.
[0007] In the above technical solution, preferably, the connecting mechanism includes two track components symmetrically arranged on the front and rear sides of the connecting pipe, and two sliders are provided on the outer side of the inner cover, and the two sliders are respectively slidably arranged in the two track components.
[0008] In the above technical solution, preferably, the connecting pipe is a retractable flexible hose.
[0009] In the above technical solution, preferably, a nipple is provided on the inner side of the inner cover.
[0010] In the above technical solution, preferably, the nipple component has a hollow structure, and the nipple component has through holes communicating with the internal cavity of the nipple component on both the head end and the side wall.
[0011] In the above technical solution, preferably, the inner edge of the inner cover is provided with a soft pad.
[0012] Compared with the prior art, this utility model has the following advantages and effects:
[0013] This invention connects the inlet tube to an anesthesia machine via a flexible tube. First, the outer cover is fitted to the child's face, while the inner cover is positioned close to the child's mouth and nose. The anesthetic gas from the anesthesia machine enters the inner cover through the inlet tube and connecting tube. The anesthetic gas then diffuses from the inner cover into the outer cover, resulting in a higher concentration of anesthetic gas inside the inner cover. Because the child's mouth and nose are close to, or even partially inside, the inner cover, the child can inhale a higher concentration of anesthetic gas, thus shortening the time required for anesthesia induction and reducing the probability of discomfort and movement caused by contact between the outer cover and the child's face. Attached Figure Description
[0014] Figure 1 This is a cross-sectional view of the neonatal anesthesia mask in use according to an embodiment of this utility model.
[0015] Figure 2 yes Figure 1 Enlarged view of an embodiment of this utility model.
[0016] Figure 3 This is a sectional view of the left side of the inner cover in section 2.
[0017] The components include an outer cover 1, an air inlet pipe 11, an inner cover 2, a soft pad 21, a connecting pipe 3, a connecting mechanism 4, a track component 41, a slider 42, a nipple component 5, and a through hole 51. Detailed Implementation
[0018] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.
[0019] See Figures 1-3 This embodiment provides a neonatal anesthesia mask, including an outer mask 1 and an inner mask 2. The outer mask 1 is provided with an air inlet pipe 11, and the inner mask 2 is disposed inside the outer mask 1. The inner mask 2 and the outer mask 1 are connected by a connecting pipe 3. When the outer mask 1 is fitted to the face of the child, the inner mask 2 is close to the mouth and nose of the child.
[0020] This invention uses an inlet pipe 11 connected to an anesthesia machine via a flexible tube. In use, the outer cover 1 is first fitted to the child's face, with the inner cover 2 positioned close to the child's mouth and nose. The anesthesia machine outputs anesthetic gas, which enters the inner cover 2 through the inlet pipe 11 and connecting pipe 3. The anesthetic gas then diffuses from the inner cover 2 back into the outer cover 1, resulting in a high concentration of anesthetic gas inside the inner cover 2. Because the child's mouth and nose are close to the inner cover 2, and some parts of the mouth and nose even extend into the inner cover 2, the child can inhale a high concentration of anesthetic gas, thus shortening the time required for anesthesia induction and reducing the probability of discomfort and movement caused by contact between the outer cover 1 and the child's face.
[0021] See Figure 1 , Figure 2 A connecting mechanism 4 is provided between the inner cover 2 and the outer cover 1, and the outer cover 1 is slidably disposed inside the inner cover 2 through the connecting mechanism 4.
[0022] Before use, the position of the inner cover 2 inside the outer cover 1 can be adjusted according to the shape of the child's face and the position of the mouth and nose. This allows the inner cover 2 to fit close to the child's mouth and nose when the outer cover 1 is placed against the child's face, thereby minimizing discomfort caused to the child due to direct contact between the inner cover 2 and the child's mouth and nose. At the same time, it ensures that the child inhales a high concentration of anesthetic gas, thus reducing the time required for anesthesia induction.
[0023] See Figure 2 , Figure 3 The connecting mechanism 4 includes two track components 41 symmetrically arranged on the front and rear sides of the connecting pipe 3. Two sliders 42 are provided on the outer side of the inner cover 2 and the two sliders 42 are respectively slidably arranged in the two track components 41.
[0024] The position of the inner cover 2 is adjusted by driving the inner cover 2 and the slider 42 to move up and down along the track 41. The two track 41s clamp the inner cover 2 and the slider 42, which improves the stability of the connection between the slider 42 and the track 41. During installation, the inner cover 2 and the outer cover 1 are first connected by the connecting pipe 3. Then, the two sliders 42 are squeezed into the two track 41s in sequence, causing the two track 41s to undergo elastic deformation and separate from each other. This allows the two sliders 42 to be inserted between the two track 41s. After the track 41s return to their original shape, the inner cover 2 is installed on the outer cover 1. The friction between the slider 42 and the track 41 is used to adjust the position of the inner cover 2 and fix its position relative to the outer cover 1, reducing the probability of the inner cover 2 moving and coming into contact with the child's mouth and nose during use.
[0025] See Figure 2The connecting pipe 3 is a retractable hose. The hose can extend and bend within a certain length range, ensuring that both ends of the connecting pipe 3 can always maintain connection with the inner cover 2 and the air inlet pipe 11 when adjusting the position of the inner cover 2 inside the outer cover 1. At the same time, when installing the inner cover 2, the connecting pipe 3 can be easily fixed to the inner cover 2 and the air inlet pipe 11 by stretching the connecting pipe 3.
[0026] See Figure 2 The inner cover 2 is provided with a nipple 5 on its inner side.
[0027] When the inner cover 2 is close to the child's mouth and nose, the position of the nipple 5 corresponds to the position of the child's mouth, so that the child can put the nipple 5 into their mouth to relieve the child's psychological pressure and reduce the probability that the child's psychological pressure will be too great when the present invention is placed on the child's face, resulting in physical movement.
[0028] See Figure 2 The nipple component 5 has a hollow structure, and the nipple component 5 has through holes 51 on its head end and side wall that communicate with the internal cavity of the nipple component 5.
[0029] The anesthetic gas enters the internal cavity of the nipple 5 through the through hole 51 on the side wall of the nipple 5. Then, through the sucking action of the child, the anesthetic gas is inhaled into the oral cavity through the through hole 51 at the tip of the nipple 5. Thus, under the child's breathing action, the anesthetic gas can be inhaled from both the oral cavity and the nasal cavity, improving the efficiency of the child's inhalation of anesthetic gas and shortening the time required for anesthesia induction.
[0030] See Figure 2 The inner edge of the inner cover 2 is provided with a soft pad 21. The soft pad 21 can act as a buffer between the inner cover 2 and the child's face, reducing the discomfort caused to the child when the child's mouth and nose collide with the inner cover 2, thereby reducing the probability of the child moving and ensuring the smooth progress of the anesthesia induction operation.
[0031] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.
Claims
1. A neonatal anesthesia mask, characterized in that: It includes an outer cover and an inner cover. The outer cover is equipped with an air inlet pipe, and the inner cover is located inside the outer cover. The inner cover and the outer cover are connected by a connecting pipe. When the outer cover is fitted to the child's face, the inner cover is close to the child's mouth and nose. A connecting mechanism is provided between the inner cover and the outer cover, and the outer cover is slidably disposed inside the inner cover through the connecting mechanism; The connecting mechanism includes two track components symmetrically arranged on the front and rear sides of the connecting tube, and two sliders are provided on the outer side of the inner cover, with the two sliders sliding up and down respectively within the two track components; A nipple component is provided on the inner side of the inner cover; The nipple component has a hollow structure, and through holes communicating with the internal cavity of the nipple component are provided on the head end and side wall of the nipple component.
2. The neonatal anesthesia mask according to claim 1, characterized in that: The connecting pipe is a retractable flexible hose.
3. The neonatal anesthesia mask according to claim 1, characterized in that: The inner edge of the inner cover is provided with a soft pad.