Respiratory tract foreign matter obstruction suction device for pre-hospital first aid

Abstract

The invention relates to the technical field of medical apparatus and instruments, and discloses a pre-hospital emergency respiratory tract foreign matter obstruction suction device which comprises an outer fixing mechanism and an inner moving mechanism. The piston plate is located in the air exhaust cavity and can drive air to flow, the spiral spring is located in the component moving cavity and used for providing elastic potential energy, and the second permanent magnet can be matched with the first permanent magnet so as to generate suction force. According to the respiratory tract foreign matter blocking suction device for pre-hospital first aid, elastic potential energy generated by the compressed spiral spring serves as a power driving source, the device has the advantage of being wide in use scene, in addition, the elastic potential energy can be released instantly, so that gas negative pressure is generated, foreign matter in the respiratory tract of a patient is sucked out, and the medical treatment effect is good. The device is small and light, does not need a power supply, and is convenient to operate.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a suction device for airway obstruction in pre-hospital emergency care. Background Technology

[0002] In pre-hospital emergency care, it is inconvenient to bring a conventional suction device to the patient's side. When encountering patients who are drowning, vomiting, or experiencing airway obstruction leading to suffocation, it is often impossible to effectively provide on-site rescue.

[0003] For example, Chinese patent publication number CN113520554B discloses a "Medical Bronchial Air Guidance and Retrieval Device," whose main structure includes an outer tube and an inner tube. The outer tube is sleeved on the outer wall of the inner tube. The inner tube contains an air guiding branch tube and an adsorption tube. A bundled tube sleeve is fitted onto the upper end of the outer tube. Both the adsorption tube and the air guiding branch tube penetrate the outer wall of the bundled tube sleeve. A retrieval component is connected to the end of the inner tube away from the bundled tube sleeve. The retrieval component is connected to a finger ring. An end cap is also installed on the upper end of the bundled tube sleeve. This medical bronchial air guidance and retrieval device, through the dual-tube setup of the air guiding branch tube and the adsorption tube, allows gas to be drawn out while adsorbing foreign objects when the inhalation pump is turned on. At this time, gas enters through the air guiding branch tube, and the gas directly reaches the patient's trachea through the air guiding branch tube, avoiding a large amount of gas entering through the patient's mouth. This improves patient comfort while preventing the formation of a negative pressure chamber in the patient's trachea.

[0004] However, the aforementioned medical bronchial airway extraction device requires electricity as a power source, which limits the device's usage location and scope, resulting in significant limitations in its application scenarios. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a suction device for airway obstruction in pre-hospital emergency care. It utilizes the elastic potential energy generated by a compressed helical spring as a power source, making it suitable for a wide range of applications. Furthermore, the elastic potential energy can be released instantaneously, generating negative gas pressure to suction out foreign objects from the patient's airway. It is compact, lightweight, requires no power supply, and is easy to operate, thus solving the aforementioned technical problems.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a pre-hospital care airway foreign body obstruction suction device, comprising an external fixing mechanism, which comprises an external hollow cylinder with a hollow structure and used for handheld work, an air extraction cavity arranged in the internal of the external hollow cylinder and used for accommodating component activity, a component activity cavity arranged in the internal of the external hollow cylinder and used for accommodating component activity, and a first permanent magnet installed at one end of the external hollow cylinder and used for providing magnetic locking function; and an internal activity mechanism, which comprises a piston plate located in the internal of the air extraction cavity and capable of driving gas flow, a spiral spring located in the internal of the component activity cavity and used for providing elastic potential, and a second permanent magnet capable of adapting to the first permanent magnet, thereby generating suction.

[0007] Preferably, the external fixing mechanism further comprises a rod body perforation arranged in the internal of the external hollow cylinder and used for connecting the air extraction cavity and the component activity cavity, one end of the external hollow cylinder is provided with a protruding channel connected with the air extraction cavity, the other end of the external hollow cylinder is provided with a limiting shaft hole connected with the component activity cavity, three first internal grooves are arranged at the periphery of one end of the external hollow cylinder, and the three first internal grooves are arranged in an annular array, and one first permanent magnet is fixedly installed in the internal of each first internal groove.

[0008] Preferably, the outer circumferential surface of the external hollow cylinder is sleeved with an anti-skid sleeve for increasing friction.

[0009] Preferably, the internal activity mechanism further comprises a linkage rod fixedly installed at one end of the piston plate and penetrating the rod body perforation, the piston plate is arranged in the internal of the air extraction cavity and capable of moving axially along the air extraction cavity, the linkage rod is fixedly installed at one end located in the internal of the component activity cavity and provided with an internal movable plate, the internal movable plate is capable of moving axially along the component activity cavity, the linkage rod is sleeved with the spiral spring at the rod body periphery located in the internal of the component activity cavity, one end of the internal movable plate is fixedly installed with an axial movable rod penetrating the limiting shaft hole, one end of the axial movable rod is installed with a rotatable cap through a bearing, one end of the rotatable cap is provided with three second internal grooves corresponding to the first internal grooves, and one second permanent magnet is installed in the internal of each second internal groove.

[0010] Preferably, the initial length of the spiral spring is greater than the axial length of the component activity cavity.

[0011] Preferably, the structure radius of the axial movable rod is smaller than the structure radius of the limiting shaft hole, and the gap therebetween is used for gas flow.

[0012] Preferably, the structure shape of the linkage rod cross section is consistent with the structure shape of the rod body perforation cross section, and both are polygonal structures, and the structure size of the linkage rod cross section matches the structure size of the rod body perforation cross section.

[0013] Preferably, the second permanent magnet and the first permanent magnet have opposite magnetic poles at opposite end faces, and the suction force when the two are in repulsion is greater than the elastic potential energy of the spiral spring when it is fully compressed.

[0014] Preferably, the oral clamping mechanism further comprises an oral cover capable of being sleeved at the patient's oral cavity, an inner recessed channel arranged inside the oral cover and connected with the convex channel, and a tongue depressor arranged on the inner recessed surface of the oral cover and used for limiting the patient's tongue.

[0015] Preferably, the oral clamping mechanism further comprises an inner recessed cavity arranged on one side of the oral cover, and an inner recessed channel capable of being clamped outside the convex channel is arranged on the other side of the oral cover, the inner recessed cavity and the inner recessed channel are connected through a ventilation hole, a ring-shaped end structure is arranged on the outer periphery of the opening end of the inner recessed cavity, a sealing rubber ring is arranged on the ring-shaped end of the ring-shaped end structure, and a tongue depressor is arranged on the inner recessed surface of the oral cover.

[0016] Compared with the prior art, the present application provides a suction device for respiratory tract foreign body obstruction in pre-hospital care, which has the following advantages: The elastic potential energy generated by the compressed spiral spring is used as a power driving source, which has the characteristics of wide use scenarios. In addition, the elastic potential energy can be released instantly, thereby generating a gas negative pressure to suck out the foreign matter inside the patient's respiratory tract, and the device has the characteristics of small size, light weight, no power supply and simple operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the present application; Figure 2 It is a perspective view of the present application; Figure 3 It is a perspective view of the external fixation mechanism in the present application; Figure 4 It is a perspective view of the external fixation mechanism in the present application; Figure 5 It is a perspective view of the internal movable mechanism in the present application; Figure 6 It is a perspective view of the oral clamping mechanism in the present application.

[0018] Wherein: 1, the outer fixed mechanism; 11, the outer hollow cylinder; 12, the anti-skid sleeve; 13, the air extraction cavity; 14, the component movable cavity; 15, the rod body perforation; 16, the convex channel; 17, the limiting shaft hole; 18, the first inner recess; 19, the first permanent magnet; 2, the inner movable mechanism; 21, the piston plate; 22, the built-in movable plate; 23, the linkage rod; 24, the spiral spring; 25, the axial movable rod; 26, the rotating cap; 27, the second inner recess; 28, the second permanent magnet; 3, the oral cavity clamping mechanism; 31, the oral cavity cover; 32, the annular end structure; 33, the inner recess cavity; 34, the inner recess channel; 35, the air hole; 36, the sealing rubber ring; 37, the tongue depressor. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0020] Please refer to Figure 1 and Figure 2 , a pre-hospital care breathing foreign body obstruction suction device does not need power as a driving source, convenient to carry.

[0021] In order to realize handheld control, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the outer fixed mechanism 1 needs to be set, which includes the outer hollow cylinder 11 with a hollow structure and used for handheld work, the air extraction cavity 13 set in the outer hollow cylinder 11 and used for accommodating component movement, the component movable cavity 14 set in the outer hollow cylinder 11 and used for accommodating component movement, and the first permanent magnet 19 installed at one end of the outer hollow cylinder 11 and used for providing magnetic locking function, the anti-skid sleeve 12 is held, and by controlling the hand-holding angle and force of the anti-skid sleeve 12, the blockage at the patient's oral cavity and the operation of the equipment are realized.

[0022] For the specific structure of the outer fixed mechanism 1, please refer to Figure 3 and Figure 4Also included are a rod body perforation 15 arranged inside the outer hollow cylinder 11 and used to connect the air suction cavity 13 and the component activity cavity 14, a protruding channel 16 arranged at one end of the outer hollow cylinder 11 and used to connect the air suction cavity 13, a limiting shaft hole 17 arranged at the other end of the outer hollow cylinder 11 and used to connect the component activity cavity 14, three first inner grooves 18 arranged at the periphery of the outer hollow cylinder 11 at one end of the limiting shaft hole 17, and arranged in a ring array, and a first permanent magnet 19 fixedly installed inside each first inner groove 18, and a non-slip sleeve 12 arranged on the outer circumferential surface of the outer hollow cylinder 11 and used to increase friction.

[0023] In order to achieve the function of instantaneous negative pressure suction, please refer to Figure 1 、 Figure 2 and Figure 5 , an inner activity mechanism 2 needs to be arranged, which includes a piston plate 21 arranged inside the air suction cavity 13 and capable of driving gas flow, a spiral spring 24 arranged inside the component activity cavity 14 and used to provide elastic potential, and a second permanent magnet 28 capable of adapting to the first permanent magnet 19 and thus generating suction force, when gas suction action is needed, first rotate the rotating cap 26 so that the second permanent magnet 28 and the first permanent magnet 19 are symmetrical, and then press the rotating cap 26 inward, at this time, the built-in activity plate 22 elastically compresses the spiral spring 24, and at the same time, the piston plate 21 moves towards the protruding channel 16, when the second permanent magnet 28 and the first permanent magnet 19 are in mutual resistance at the symmetrical end, since the suction force of the two when in mutual resistance is greater than the elastic potential of the spiral spring 24 when fully compressed, the spiral spring 24 will be fully compressed and shaped, when the oral cavity sealing work is completed, hold the non-slip sleeve 12 and rotate the rotating cap 26, when the second permanent magnet 28 and the first permanent magnet 19 are completely misaligned, the suction force between the two disappears, and the elastic potential of the spiral spring 24 is released instantaneously, the piston plate 21 moves quickly, and the gas inside the air suction cavity 13 loses pressure instantaneously, so that the gas in the patient's oral cavity is sucked into the air suction cavity 13, a negative pressure is formed in the oral cavity, and thus the foreign matter inside the respiratory tract is sucked out.

[0024] For the specific structure of the inner activity mechanism 2, please refer to Figure 5Further comprising a linkage rod 23 fixedly installed at one end of the piston plate 21 and penetrating through the rod body through hole 15, the piston plate 21 is placed inside the air exhaust cavity 13 and can move axially along the air exhaust cavity 13, the linkage rod 23 is fixedly installed with an inner movable plate 22 at one end inside the component movable cavity 14, the inner movable plate 22 can move axially along the component movable cavity 14, a spiral spring 24 is sleeved on the linkage rod 23 at the outer periphery of the linkage rod 23 inside the component movable cavity 14, one end of the inner movable plate 22 is fixedly installed with an axial movable rod 25 penetrating through the limiting shaft hole 17, one end of the axial movable rod 25 is installed with a rotatable rotating cap 26 through a bearing, one end of the rotating cap 26 is provided with three second inner grooves 27 corresponding to the first inner groove 18, one second permanent magnet 28 is installed inside each of the second inner grooves 27, the initial length of the spiral spring 24 is greater than the axial length of the component movable cavity 14, the structural radius of the axial movable rod 25 is smaller than the structural radius of the limiting shaft hole 17, the gap therebetween is used for gas flow, the cross-sectional structural shape of the linkage rod 23 is consistent with the cross-sectional structural shape of the rod body through hole 15, both are polygonal structures, and the cross-sectional structural size of the linkage rod 23 matches the cross-sectional structural size of the rod body through hole 15, the second permanent magnet 28 and the first permanent magnet 19 are opposite in magnetic pole at opposite end faces, and the suction force when the two are in contact and adsorption is greater than the elastic potential energy of the spiral spring 24 when it is fully compressed.

[0025] In order to realize the sealing function of the patient's oral cavity, please refer to Figure 1 , Figure 2 and Figure 6 , it is necessary to set the oral clamping mechanism 3, which comprises an oral cover 31 capable of being sleeved at the patient's oral cavity, an inner recessed channel 34 provided inside the oral cover 31 and matched with the protruding channel 16, and a tongue depressor 37 provided on the inner recessed surface of the oral cover 31 and used for limiting the patient's tongue. Insert the tongue depressor 37 into the patient's oral cavity, so that the patient's tongue is pressed at the bottom of the tongue depressor 37, and then the oral cover 31 is buckled at the periphery of the oral cavity. The sealing rubber ring 36 needs to ensure the sealing of the patient's oral cavity outside, so as to realize the sealing function of the patient's oral cavity.

[0026] For the specific structure of the oral clamping mechanism 3, please refer to Figure 6 , further comprising an inner recessed cavity 33 provided on one side of the oral cover 31, the other side of the oral cover 31 is provided with an inner recessed channel 34 capable of being clamped outside the protruding channel 16, the inner recessed channel 34 and the inner recessed cavity 33 are communicated through the air hole 35, the oral cover 31 is provided with an annular end structure 32 at the periphery of the opening end of the inner recessed cavity 33, the annular end of the annular end structure 32 is installed with a sealing rubber ring 36, and the oral cover 31 is provided with a tongue depressor 37 on the inner recessed surface of the inner recessed cavity 33.

[0027] In use, first rotate the rotating cap 26 so that the second permanent magnet 28 and the first permanent magnet 19 are symmetrical, then press the rotating cap 26 inward, at this time, the built-in movable plate 22 elastically compresses the spiral spring 24, at the same time, the piston plate 21 moves toward the convex channel 16, when the second permanent magnet 28 and the first permanent magnet 19 are in mutual contact at the symmetrical end, because the suction force when the two are in contact is greater than the elastic potential energy of the spiral spring 24 when it is fully compressed, the spiral spring 24 will be fully compressed and shaped, the tongue plate 37 is inserted into the patient's mouth, and the patient's tongue is pressed at the bottom of the tongue plate 37, then the oral cavity cover 31 is buckled around the oral cavity, the sealing rubber ring 36 needs to ensure the sealing of the patient's oral cavity outside, hold the anti-skid sleeve 12, and rotate the rotating cap 26, when the second permanent magnet 28 and the first permanent magnet 19 are fully misaligned, the suction force between them disappears, and the elastic potential energy of the spiral spring 24 is released instantaneously, the piston plate 21 moves quickly, and the gas in the air suction cavity 13 is sucked into the air suction cavity 13, forming a negative pressure in the oral cavity, and then the foreign matter in the respiratory tract is sucked out.

[0028] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A suction device for airway obstruction in pre-hospital emergency care, characterized in that: include, The external fixing mechanism (1) includes an outer hollow cylinder (11) with a hollow interior for handheld operation, an air extraction cavity (13) located inside the outer hollow cylinder (11) for accommodating component movement, a component movement cavity (14) located inside the outer hollow cylinder (11) for accommodating component movement, and a first permanent magnet (19) installed at one end of the outer hollow cylinder (11) for providing magnetic locking function. And an internal moving mechanism (2), the structure of which includes a piston plate (21) located inside the air extraction cavity (13) and capable of driving gas flow, a helical spring (24) located inside the component moving cavity (14) and used to provide elastic potential energy, and a second permanent magnet (28) that can be adapted to the first permanent magnet (19) to generate attraction.

2. The suction device for airway obstruction in pre-hospital emergency care according to claim 1, characterized in that: The external fixing mechanism (1) further includes a rod through hole (15) disposed inside the hollow cylinder (11) and used to connect the air extraction cavity (13) and the component movable cavity (14). One end of the hollow cylinder (11) is provided with a protruding channel (16) connecting the air extraction cavity (13), and the other end of the hollow cylinder (11) is provided with a limiting shaft hole (17) connecting the component movable cavity (14). The hollow cylinder (11) is provided with three No. 1 inner grooves (18) on the periphery of one end located at the limiting shaft hole (17), and the three No. 1 inner grooves (18) are arranged in a ring array. A No. 1 permanent magnet (19) is fixedly installed inside each No. 1 inner groove (18).

3. The suction device for airway obstruction in pre-hospital emergency care according to claim 2, characterized in that: The outer circumferential surface of the hollow cylinder (11) is fitted with an anti-slip sleeve (12) to increase friction.

4. A suction device for airway obstruction in pre-hospital emergency care according to claim 3, characterized in that: The internal moving mechanism (2) further includes a linkage rod (23) fixedly installed at one end of the piston plate (21) and passing through the rod body through hole (15). The piston plate (21) is placed inside the suction cavity (13) and can move axially along the suction cavity (13). The linkage rod (23) has a built-in moving plate (22) fixedly installed at one end located inside the component moving cavity (14). The built-in moving plate (22) can move axially along the component moving cavity (14). The linkage rod (23) has a built-in moving plate (22) fixedly installed at one end located inside the component moving cavity (14). A helical spring (24) is sleeved around the rod body inside the active cavity (14). An axial movable rod (25) that passes through the limiting shaft hole (17) is fixedly installed at one end of the built-in movable plate (22). A rotating cap (26) that can rotate is installed at one end of the axial movable rod (25) through a bearing. Three second inner grooves (27) corresponding to the first inner groove (18) are provided at one end of the rotating cap (26). A second permanent magnet (28) is installed inside each of the second inner grooves (27).

5. A suction device for airway obstruction in pre-hospital emergency care according to claim 4, characterized in that: The initial length of the helical spring (24) is greater than the axial length of the movable cavity (14) of the component.

6. A suction device for airway obstruction in pre-hospital emergency care according to claim 5, characterized in that: The structural radius of the axial movable rod (25) is smaller than the structural radius of the limiting shaft hole (17), and the gap between them is used for gas flow.

7. A suction device for airway obstruction in pre-hospital emergency care according to claim 6, characterized in that: The cross-sectional shape of the linkage rod (23) is consistent with the cross-sectional shape of the rod through hole (15), both being polygonal structures, and the structural dimensions of the cross-section of the linkage rod (23) match the structural dimensions of the cross-section of the rod through hole (15).

8. A suction device for airway obstruction in pre-hospital emergency care according to claim 7, characterized in that: The magnetic poles of the second permanent magnet (28) and the first permanent magnet (19) are opposite at their opposite ends, and the attraction force when they collide and attract each other is greater than the elastic potential energy of the helical spring (24) when it is fully compressed.

9. A suction device for airway obstruction in pre-hospital emergency care according to any one of claims 2-8, characterized in that: It also includes an oral clamping mechanism (3), the structure of which includes an oral mask (31) that can be fitted over the patient’s mouth, an inner concave channel (34) located inside the oral mask (31) and connected to the protruding channel (16), and a tongue depressor (37) located on the inner concave surface of the oral mask (31) for limiting the patient’s tongue.

10. A suction device for airway obstruction in pre-hospital emergency care according to claim 9, characterized in that: The oral clamping mechanism (3) further includes a concave cavity (33) disposed on one side of the oral mask (31), and a concave channel (34) disposed on the other side of the oral mask (31) that can be locked outside the protruding channel (16). The concave channel (34) and the concave cavity (33) are connected by a vent hole (35). The oral mask (31) is provided with an annular end structure (32) on the periphery of the opening end of the concave cavity (33). A sealing rubber ring (36) is installed on the annular end of the annular end structure (32). The oral mask (31) is provided with a tongue depressor (37) on the concave surface of the concave cavity (33).

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