Inhalation type anesthetic drug administration device and mask applying same

Abstract

The inhalation type anesthetic administration device comprises a connecting pipe, a first pipe body and a second pipe body are arranged on the connecting pipe, a connecting cavity and a breathing cavity are formed in the connecting pipe, and a connecting opening for communicating the connecting cavity with the breathing cavity is formed between the connecting cavity and the breathing cavity. The caliber of the connector is smaller than the diameters of the connecting cavity and the breathing cavity; a turning plate is rotatably connected in the connecting cavity, the turning plate divides the connecting cavity into a first chamber and a second chamber which are respectively communicated with the first pipe body and the second pipe body, and the first chamber and the second chamber can be respectively communicated with the connecting port through rotation of the turning plate; a driving part used for driving the turning plate to rotate is arranged in the breathing cavity and can drive the turning plate to rotate through breathing of the patient. A patient drives the turning plate to rotate through cooperation of breathing and the driving piece, the input cavity and the output cavity are made to communicate with the breathing cavity according to breathing of the patient, and therefore surrounding surgeons are not prone to being affected while the patient exhales gas.

Description

Technical Field

[0001] The invention relates to the technical field of medical auxiliary devices, and in particular to an inhalation anesthetic drug administration device and a mask using the device. Background Art

[0002] Inhalation anesthesia is an anesthesia method in which anesthetic drugs are inhaled through the respiratory tract to produce central nervous system depression, causing the patient to temporarily lose consciousness and not feel pain all over the body. It is the main method of general anesthesia. In clinical applications, inhalation anesthesia is usually assisted by an anesthesia mask. Volatile anesthetic gas is introduced into the anesthesia mask in a continuous positive pressure manner so that the patient wearing the anesthesia mask can inhale and produce an anesthetic effect.

[0003] The anesthesia mask in the prior art is usually non-enclosed to facilitate the discharge of the patient's exhaled gas. During the patient's exhalation, the inner cavity of the anesthesia mask is also in a positive pressure state. Under the positive pressure of the anesthetic gas, the anesthetic gas will inevitably escape. The escape of anesthetic gas will affect the surgeon, and may cause the surgeon's reaction ability and concentration ability to decline, bringing unnecessary risks to the surgical process. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide an inhalation anesthetic drug delivery device and a mask using the device, so as to solve the problem that the anesthesia mask in the prior art is non-closed to facilitate the patient to discharge the exhaled gas, and the anesthetic gas is easily leaked to affect the surgeon.

[0005] The present invention is achieved through the following technical solutions:

[0006] An inhalation anesthetic drug administration device, comprising a connecting tube, the connecting tube is provided with a first tube body connected to an anesthesia device and an oxygen supply device and a second tube body connected to a collection container, the connecting tube is provided with a connecting cavity connected to the first tube body and the second tube body and a breathing cavity connected to the inner side of a mask, a connecting port for connecting the connecting cavity and the breathing cavity is provided between the connecting cavity and the breathing cavity, and the caliber of the connecting port is smaller than the diameter of the connecting cavity and the breathing cavity;

[0007] A flap is rotatably connected in the connection cavity, and the flap divides the connection cavity into a first chamber and a second chamber respectively connected to the first tube body and the second tube body, and the first chamber and the second chamber can be connected to the connection port respectively by rotating the flap;

[0008] A driving unit for driving the flap to rotate is arranged in the breathing chamber, and the driving unit can drive the flap to rotate through the patient's breathing.

[0009] It is further defined that the driving part includes a third chamber, a flexible membrane, a connecting rod and a rotating rod, a side wall of the connecting pipe extends outward to form the third chamber, one side of the third chamber is provided with a through hole communicating with the outside, and the other side is connected to the breathing chamber, and the flexible membrane is located between the third chamber and the breathing chamber;

[0010] The connecting rod is located between the flexible membrane and the rotating rod, one end of the connecting rod is hinged to one side of the flexible membrane close to the breathing cavity, and the other end is fixedly connected to the rotating rod, and the rotating rod is transmission-connected to the flap.

[0011] It is further defined that a first transmission wheel and a second transmission wheel are rotatably connected on the outer wall of the connecting tube, a transmission belt is arranged between the first transmission wheel and the second transmission wheel, both ends of the transmission belt are sleeved on the first transmission wheel and the second transmission wheel, and the first transmission wheel and the second transmission wheel are respectively connected to the flap and the rotating rod.

[0012] It is further defined that the diameter of the second transmission wheel is greater than the diameter of the first transmission wheel.

[0013] It is further defined that the longitudinal section of the connecting cavity is circular, and a sealing block located between the flap and the inner wall of the connecting cavity is provided at the end of the flap.

[0014] It is further defined that a water-proof film is sprayed on the outer wall of the flap.

[0015] It is further defined that a slide groove extending in the direction of the rotation trajectory of the flap is provided on the side wall of the breathing cavity, a slider is slidably fitted in the slide groove, and the slider is fixedly connected to one side of the flap.

[0016] A mask for use with an inhalation anesthetic drug administration device comprises a mask for the inhalation anesthetic drug administration device and a mask body connected to a breathing cavity in a connecting tube, wherein a ring body is rotatably arranged on the outer side of the mask body, and at least two connecting ropes are arranged on the ring body.

[0017] It is further defined that the mask body includes an inner cover body and an outer cover body sleeved outside the inner cover body, a gap is formed between the inner cover body and the outer cover body, and an exhaust pipe communicating with the gap is provided on the outer cover body.

[0018] It is further defined that the outer edge surface of the outer cover is provided with a flexible sheet extending in a direction away from the outer cover body, and the flexible sheet is inclined in a direction away from its central portion.

[0019] The beneficial effects of the present invention are:

[0020] The patient drives the flap to rotate by cooperating with the driving member through breathing, so that the input chamber and the output chamber are connected with the breathing chamber respectively according to the patient's breathing, so that the patient can exhale the gas without easily affecting the surrounding surgeons.

[0021] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of Embodiment 1 of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the first chamber of the present invention being connected to the breathing chamber;

[0024] Figure 3 It is a schematic diagram of the structure that the second chamber of the present invention is connected with the breathing chamber;

[0025] Figure 4 It is a structural schematic diagram of Embodiment 2 of the present invention;

[0026] Figure 5 It is a structural diagram of embodiment 3 of the present invention.

[0027] In the figure:

[0028] 1. Connecting tube; 101. First tube body; 102. Second tube body; 2. Breathing chamber; 3. Connecting port; 4. Flap; 5. First chamber; 501. Second chamber; 6. Third chamber; 7. Flexible membrane; 701. Connecting rod; 702. Rotating rod; 8. First transmission wheel; 801. Second transmission wheel; 802. Transmission belt; 9. Slide; 10. Mask body; 1001. Outer cover body; 1002. Inner cover body; 11. Exhaust pipe; 12. Ring body; 1201. Connecting rope. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition and explanation in the subsequent drawings.

[0032] In the above description of the present invention, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0034] See also Figure 1-5 , Embodiment 1 of the present invention provides a technical solution: an inhalation anesthetic drug delivery device, comprising a connecting tube 1, on which a first tube body 101 connected to an anesthesia device and an oxygen supply device and a second tube body 102 connected to a collection container are provided, a connecting cavity connected to the first tube body 101 and the second tube body 102 and a breathing cavity 2 connected to the inner side of a mask are provided in the connecting tube 1, a connecting port 3 for connecting the connecting cavity and the breathing cavity 2 is provided between the connecting cavity and the breathing cavity 2, and the caliber of the connecting port 3 is smaller than the diameter of the connecting cavity and the breathing cavity 2;

[0035] A flap 4 is rotatably connected in the connection cavity, and the flap 4 divides the connection cavity into a first chamber 5 and a second chamber 501 respectively connected to the first tube body 101 and the second tube body 102. The first chamber 5 and the second chamber 501 can be connected to the connection port 3 respectively through the rotation of the flap 4.

[0036] The breathing chamber 2 is provided with a driving unit for driving the flap 4 to rotate, and the driving unit can drive the flap 4 to rotate through the patient's breathing.

[0037] In this solution, one end of the connecting tube 1 is closed, and the other end is used to provide oxygen and anesthetics to the patient when the patient inhales or to discharge the exhaled gas when the patient exhales.

[0038] The connecting cavity in the connecting tube 1 is divided into a first cavity 5 and a second cavity 501 adjacent to each other on the left and right by the flap 4. Since the first cavity 5 and the second cavity 501 are connected to the first tube body 101 and the second tube body 102 respectively, the first cavity 5 and the second cavity 501 can be regarded as an input cavity and an output cavity.

[0039] The connecting cavity is connected to the breathing cavity 2 through the connecting port 3, and the connecting cavity cooperates with the flap 4 to form a valve structure. The state in which the flap 4 is erected as a whole is the natural state, and the following states can be presented by rotating the flap 4:

[0040] State 1: When the flap 4 rotates clockwise to present Figure 3 When the second tube body 102 is connected to the breathing chamber 2 through the second chamber 501, in this state, the first tube body 101 is only connected to the first chamber 5, and the first chamber 5 and the breathing chamber 2 are blocked by the flap 4;

[0041] State 2: When the flap 4 rotates counterclockwise to present Figure 2 When the first tube body 101 is connected to the breathing chamber 2 through the first chamber 5, the second tube body 102 is only connected to the second chamber 501, and the second chamber 501 and the breathing chamber 2 are separated by the flap 4.

[0042] Specific usage and principle:

[0043] Step 1: connect the connecting tube 1 to the patient's mouth and nose, so that the patient can directly inhale the gas in the connecting tube 1 or discharge the exhaled gas through the connecting tube 1;

[0044] Step 2: The patient inhales, and the pressure in the breathing chamber 2 decreases due to the influence of the inhalation. The driving member drives the flap 4 to rotate counterclockwise to state 2, and the first rod body, the first chamber 5 and the breathing chamber 2 are connected;

[0045] Step three: the patient exhales, and the pressure in the breathing chamber 2 increases due to the influence of the exhalation. The driving member drives the flap 4 to rotate clockwise to state one, and the second rod body, the second chamber 501 and the breathing chamber 2 are connected.

[0046] Therefore, when anesthesia is administered to a patient by using the inhalation anesthetic drug delivery device of the present application, the patient drives the flap 4 to rotate through breathing in coordination with the driving member, causing the input chamber and the output chamber to be connected to the breathing chamber 2 respectively according to the patient's breathing, so that the patient can exhale the gas without easily affecting the surrounding surgeons.

[0047] At the same time, when the patient inhales, the flap 4 blocks the second chamber 501, so that when the patient inhales anesthetics and oxygen, the anesthetics and oxygen are not easily output through the second chamber 501, thereby reducing the waste of anesthetics and oxygen;

[0048] When the patient exhales, the flap 4 blocks the first chamber 5, making it difficult for the patient's exhaled gas to be output through the first chamber 5 and mixed with the anesthetic and oxygen in the first tube 101, thereby reducing the mixing of anesthetics, oxygen and exhaled gas and increasing the anesthetic effect.

[0049] The collection container connected to the second rod body can be replaced with a filter element for filtering the anesthetic gas, so that the exhaled gas discharged through the second chamber 501 can be discharged normally after filtering the anesthetic gas through the filter element.

[0050] In this embodiment, the driving part includes a third chamber 6, a flexible membrane 7, a connecting rod 701 and a rotating rod 702. One side wall of the connecting tube 1 extends outward to form the third chamber 6. One side of the third chamber 6 is provided with a through hole communicating with the outside world, and the other side is connected to the breathing chamber 2. The flexible membrane 7 is located between the third chamber 6 and the breathing chamber 2.

[0051] The connecting rod 701 is located between the flexible membrane 7 and the rotating rod 702 , one end of the connecting rod 701 is hinged to one side of the flexible membrane 7 close to the breathing chamber 2 , and the other end is fixedly connected to the rotating rod 702 , and the rotating rod 702 is transmission-connected to the flap 4 .

[0052] In this solution, the third chamber 6 is blocked from the breathing chamber 2 by the flexible membrane 7 and is in a disconnected state. Meanwhile, the third chamber 6 is connected to the outside through the through hole to maintain the air pressure change state when the flexible membrane 7 is deformed.

[0053] When in use, the flexible membrane 7 presents the following states according to the pressure in the breathing cavity 2:

[0054] State 1: When the patient inhales to reduce the pressure in the breathing cavity 2, the pressure in the third chamber 6 is greater than the pressure in the breathing cavity 2, causing the flexible membrane 7 to bulge toward the direction of the breathing cavity 2;

[0055] In state two, when the patient's exhalation causes the pressure in the breathing cavity 2 to increase, the pressure in the breathing cavity 2 is greater than the pressure in the third chamber 6 , causing the flexible membrane 7 to bulge toward the direction of the third chamber 6 .

[0056] At the same time, when the flexible membrane 7 protrudes toward the third chamber 6 or the breathing chamber 2, since the connecting rod 701 is connected to the flexible membrane 7, the end of the connecting rod 701 connected to the flexible membrane 7 moves synchronously due to the deformation of the flexible membrane 7, and the end of the connecting rod 701 away from the flexible membrane 7 is connected to the rotating rod 702, so that the connecting rod 701 cannot move in the same direction as the flexible membrane 7. With the cooperation of the rotating rod 702, the connecting rod 701 rotates around the rotating rod 702 as the axis, thereby driving the rotating rod 702 to rotate. Further, the rotating rod 702 and the flap 4 are connected to each other for flipping and rotation.

[0057] In this embodiment, the first transmission wheel 8 and the second transmission wheel 801 are rotatably connected on the outer wall of the connecting tube 1, and a transmission belt 802 is arranged between the first transmission wheel 8 and the second transmission wheel 801. Both ends of the transmission belt 802 are sleeved on the first transmission wheel 8 and the second transmission wheel 801, and the first transmission wheel 8 and the second transmission wheel 801 are respectively connected to the flap 4 and the rotating rod 702.

[0058] In this solution, when the rotating rod 702 rotates, the flap 4 is driven to rotate through the cooperation of the first transmission wheel 8, the transmission belt 802 and the second transmission wheel 801.

[0059] In this embodiment, the diameter of the second transmission wheel 801 is greater than the diameter of the first transmission wheel 8 .

[0060] In this solution, since the diameter of the second transmission wheel 801 is greater than the diameter of the first transmission wheel 8, the circumference of the second transmission wheel 801 is larger, and under the influence of the transmission belt 802, the linear speeds of the second transmission wheel 801 and the first transmission wheel 8 are made the same. Since the circumference of the first transmission wheel 8 is smaller, the distance required to move per circle is shorter, and therefore more circles must be rotated in the same time to match the moving distance of the transmission belt 802.

[0061] Therefore, with the cooperation of the first transmission wheel 8 , the transmission belt 802 and the second transmission wheel 801 , the rotating rod 702 synchronously drives the flap 4 to rotate. During this process, the rotation angle of the flap 4 is greater than that of the rotating rod 702 .

[0062] In this embodiment, the longitudinal section of the connecting cavity is circular, and a sealing block located between the flap 4 and the inner wall of the connecting cavity is provided at the end of the flap 4 .

[0063] In this solution, since the longitudinal section of the connecting cavity is circular, its diameter is almost equal to the length of the flap 4, and the gap between the two is filled with a sealing block, thereby achieving the effect that the flap 4 is used to block the connection between the first chamber 5 or the second chamber 501 and the breathing chamber 2.

[0064] Among them, the sealing block material can be polytetrafluoroethylene (PTFE), which has an extremely low friction coefficient and is famous for its extremely low surface energy and chemical inertness. Therefore, it acts between the flap 4 and the connecting cavity, and can seal while bringing extremely low resistance to the rotation of the flap 4.

[0065] In this embodiment, a water-proof film is sprayed on the outer wall of the flap 4 .

[0066] In this solution, a water-isolating membrane is provided on the outer wall of the flap 4 , so that when the patient exhales, water vapor mixed in the exhaled gas is not easy to adhere to the flap 4 .

[0067] Among them, the waterproof membrane material can be polyethylene (PE).

[0068] In this embodiment, a slide groove 9 extending in the direction of the rotation track of the flap 4 is provided on the side wall of the breathing cavity 2 , and a slider is slidably fitted in the slide groove 9 , and the slider is fixedly connected to one side of the flap 4 .

[0069] In this solution, when the flap 4 rotates, the slider moves synchronously with the flap 4 in the slide groove 9. The extension length of the slide groove 9 limits the distance that the slider can move, thereby limiting the rotation angle of the flap 4. When the flap 4 rotates clockwise or counterclockwise to the limit, the flap 4 blocks one of the first chamber 5 or the second chamber 501 from being connected to the breathing chamber 2.

[0070] Embodiment 2: A mask using an inhalation anesthetic drug delivery device comprises the inhalation anesthetic drug delivery device and a mask body 10 connected to a breathing cavity 2 in a connecting tube 1, wherein a ring body is rotatably provided on the outer side of the mask body 10, and at least two connecting ropes are provided on the ring body.

[0071] In this solution, the end of the connecting tube 1 away from the closure is connected to the mask, and the breathing cavity 2 is connected to the inner side of the mask, so that when the patient wears the mask, he can absorb anesthetics and oxygen by inhaling and exhale the gas.

[0072] The ring body is rotatably connected to the outer side of the mask so that the connecting rope connected thereto can also rotate. When the patient is injured at the back of the head, the connecting rope can be rotated so that the connecting rope can be bound around the patient's wound as much as possible.

[0073] Embodiment 3: The difference from Embodiment 2 is that the mask body 10 includes an inner cover body 1002 and an outer cover body 1001 sleeved outside the inner cover body 1002, a gap is formed between the inner cover body 1002 and the outer cover body 1001, and an exhaust pipe 11 connected to the gap is provided on the outer cover body 1001.

[0074] In this solution, the connecting tube 1 passes through the outer cover body 1001 and is fixed to the outer cover body 1001 , and at the same time, one end of the connecting tube 1 away from the closed end is in communication with the inner side surface of the inner cover body 1002 .

[0075] When in use, the inner mask 1002 covers the patient's mouth and nose and fits the face, and the outer mask 1001 also fits the patient's face, so that part of the patient's face is located in the gap between the inner mask 1002 and the outer mask 1001. At this time, the gas in the gap is extracted by connecting the exhaust pipe 11 to the exhaust device, so that the gap becomes a negative pressure area, thereby causing the inner mask 1002 and the outer mask 1001 to adhere to the patient's face.

[0076] A one-way valve is provided in the exhaust pipe 11, and the one-way output of the one-way valve is output to the outside through the gap.

[0077] In this embodiment, the outer edge surface of the outer cover body 1001 is provided with a flexible sheet extending away from the direction where the outer cover body 1001 is located, and the flexible sheet is inclined in the direction of its central part.

[0078] In this solution, before use, medical staff can apply non-sticky or low-stickiness gel on the flexible sheet, and then fit the outer cover 1001 to the patient's face. The gel can initially fix it so as to reduce the displacement of the outer cover 1001 when air is pumped out.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. An inhalation anesthetic drug administration device, comprising a connecting tube (1), wherein the connecting tube (1) is provided with a first tube body (101) connected to an anesthesia device and an oxygen supply device and a second tube body (102) connected to a collection container, characterized in that: The connecting tube (1) is provided with a connecting cavity communicating with the first tube body (101) and the second tube body (102), and a breathing cavity (2) communicating with the inner side of the mask; a connecting port (3) for communicating the connecting cavity and the breathing cavity (2) is provided between the connecting cavity and the breathing cavity (2); the caliber of the connecting port (3) is smaller than the diameter of the connecting cavity and the breathing cavity (2); A flap (4) is rotatably connected in the connecting cavity, and the flap (4) divides the connecting cavity into a first chamber (5) and a second chamber (501) respectively connected to the first tube body (101) and the second tube body (102); the first chamber (5) and the second chamber (501) can be connected to the connecting port (3) respectively by rotating the flap (4); A driving unit for driving the flap (4) to rotate is arranged in the breathing chamber (2); the driving unit can drive the flap (4) to rotate through the patient's breathing.

2. The inhalation anesthetic drug delivery device according to claim 1, characterized in that: The driving part comprises a third chamber (6), a flexible membrane (7), a connecting rod (701) and a rotating rod (702); a side wall of the connecting pipe (1) extends outward to form the third chamber (6); a through hole communicating with the outside is provided on one side of the third chamber (6); and the other side is connected to the breathing chamber (2); the flexible membrane (7) is located between the third chamber (6) and the breathing chamber (2); The connecting rod (701) is located between the flexible membrane (7) and the rotating rod (702), one end of the connecting rod (701) is hinged to a side of the flexible membrane (7) close to the breathing chamber (2), and the other end is fixedly connected to the rotating rod (702), and the rotating rod (702) is transmission-connected to the flap (4).

3. The inhalation anesthetic drug delivery device according to claim 2, characterized in that: A first transmission wheel (8) and a second transmission wheel (801) are rotatably connected to the outer wall of the connecting tube (1); a transmission belt (802) is arranged between the first transmission wheel (8) and the second transmission wheel (801); two ends of the transmission belt (802) are sleeved on the first transmission wheel (8) and the second transmission wheel (801); the first transmission wheel (8) and the second transmission wheel (801) are respectively connected to the flap (4) and the rotating rod (702).

4. The inhalation anesthetic drug delivery device according to claim 3, characterized in that: The diameter of the second transmission wheel (801) is greater than the diameter of the first transmission wheel (8).

5. The inhalation anesthetic drug delivery device according to claim 1, characterized in that: The longitudinal section of the connecting cavity is circular, and a sealing block located between the flap (4) and the inner wall of the connecting cavity is provided at the end of the flap (4).

6. The inhalation anesthetic drug delivery device according to claim 5, characterized in that: A water-blocking film is sprayed on the outer wall of the flap (4).

7. The inhalation anesthetic drug delivery device according to claim 1, characterized in that: A slide groove (9) extending in the direction of the rotation track of the flap (4) is provided on the side wall of the breathing chamber (2), a slider is slidably fitted in the slide groove (9), and the slider is fixedly connected to one side of the flap (4).

8. A mask for use with an inhalation anesthetic drug delivery device, characterized in that: The invention comprises an inhalation anesthetic drug delivery device according to any one of claims 1 to 7 and a mask body (10) connected to a breathing chamber (2) in a connecting tube (1), wherein a ring body (12) is rotatably arranged on the outer side surface of the mask body (10), and at least two connecting ropes (1201) are arranged on the ring body.

9. The mask for use with the inhalation anesthetic drug delivery device according to claim 8, characterized in that: The mask body (10) comprises an inner mask body (1002) and an outer mask body (1001) sleeved outside the inner mask body (1002); a gap is formed between the inner mask body (1002) and the outer mask body (1001); and an exhaust pipe (11) communicating with the gap is provided on the outer mask body (1001).

10. The mask for use with the inhalation anesthetic drug delivery device according to claim 9, characterized in that: The outer edge surface of the outer cover body (1001) is provided with a flexible sheet extending in a direction away from the outer cover body (1001), and the flexible sheet is inclined in a direction away from its central portion.

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