Manual nasal suction device with multi-stage negative pressure adjustment.

Abstract

This invention provides a manual nasal suction device with multi-stage adjustable negative pressure. [Solution] The system comprises an air extraction mechanism 10 and a connecting pipe 20. The air extraction mechanism includes a pump 11, a piston, and a handle 13. The pump is provided with an air intake port. The handle comprises a rod body and an operating handle connected to the rod body. A piston is connected to one end of the rod body away from the operating handle. The piston is movably installed inside the pump, and the operating handle is formed outside the pump. The connecting pipe communicates with the air intake port. A stopper 17 is installed on the rod body. When the stopper is in the first position on the rod body, the movement of the operating handle causes the piston to perform a first movement stroke inside the pump. When the stopper is in the second position on the rod body, the movement of the operating handle causes the piston to perform a second movement stroke inside the pump. The first movement stroke is longer than the second movement stroke. In this way, various amounts of gas can be supplied according to different demands.

Description

Technical Field

[0001] The present invention relates to the technical field of manual nasal suction devices, and more particularly to a manual nasal suction device capable of adjusting negative pressure in multiple stages.

Background Art

[0002] The filling of nasal mucus in the nasal cavity of the human body is a common physiological reaction for protecting the airway. Nasal mucus may drip due to a cold, and it also contains pathogenic bacteria and white blood cells that have died due to the immune reaction. However, the swelling of the nasal mucosa caused by allergies or diseases may cause nasal congestion. For newborns, since they can only breathe through their noses, they may suffocate due to nasal congestion. Also, during the growth process of children, if nasal mucus accumulates in the nasal cavity for a long time, it may cause sinusitis and other chronic diseases, and they may also suffer from the pain of nasal congestion for a lifetime.

Summary of the Invention

Problems to be Solved by the Invention

[0003] However, most of the conventional manual nasal suction devices can only provide a single negative pressure amount, and it is impossible to provide corresponding devices for selection and use according to the different needs of adults, children, infants, or newborns, etc. For infants and newborns, problems such as excessive negative pressure and incompatibility are likely to occur.

[0004] Therefore, the inventor of the present invention believes that the above-mentioned drawbacks can be improved, and as a result of repeated intensive studies, the present invention has been proposed to effectively improve the above-mentioned problems through reasonable design.

[0005] The present invention has been made in view of such a situation, and its purpose is to provide a manual nasal suction device capable of adjusting negative pressure in multiple stages to supply various gas amounts according to different needs.

Means for Solving the Problems

[0006] To achieve the above objective, one aspect of the present invention, a manual nasal suction device with multi-stage adjustable negative pressure, comprises an air extraction mechanism and a connecting pipe, the air extraction mechanism including a pump, a piston, and a handle. The pump is provided with an intake port, the handle comprises a rod body and an operating handle connected to the rod body, the piston is connected to one end of the rod body away from the operating handle, the piston is movably installed inside the pump, and the operating handle is formed outside the pump. The connecting pipe communicates with the intake port. A stopper is installed on the rod body, and when the stopper is in a first position on the rod body, the movement of the operating handle causes the piston to generate a first movement stroke inside the pump, and when the stopper is in a second position on the rod body, the movement of the operating handle causes the piston to generate a second movement stroke inside the pump, the first movement stroke being longer than the second movement stroke. [Effects of the Invention]

[0007] According to this invention, the following effects are obtained. The installation of multiple hollow columns further diversifies the selection of gas volume. The ability of the stopper adjustment rod to be displaceable within each hollow column prevents the problem of gas loss after the stopper is removed.

[0008] The following information will become clear from the description in the specification and drawings described later. [Brief explanation of the drawing]

[0009] [Figure 1] This is a schematic diagram showing a manual nasal suction device with multi-stage adjustable negative pressure according to one embodiment of the present invention. [Figure 2] This is a schematic exploded view showing the air extraction mechanism according to the present invention. [Figure 3] This is a schematic exploded view showing the handle and stopper according to the present invention. [Figure 4]This is a schematic exploded view of the handle and stopper according to the present invention, seen from another direction. [Figure 5] This is a cross-sectional view (1) showing the state of use of the air extraction mechanism according to the present invention. [Figure 6] This is a cross-sectional view (2) showing the state of use of the air extraction mechanism according to the present invention. [Figure 7] This is a cross-sectional view (3) showing the state of use of the air extraction mechanism according to the present invention. [Modes for carrying out the invention]

[0010] The present invention will be described below through embodiments of the invention, but these embodiments are not intended to limit the scope of the invention covered by the utility model registration claims. Furthermore, not all combinations of features described in the embodiments are necessarily essential to the solution of the invention.

[0011] The embodiments of the present invention will be described in detail below with reference to Figures 1 to 4. The manual nasal suction device according to the present invention, which allows for multi-stage adjustment of negative pressure, mainly comprises an air extraction mechanism 10, a connecting tube 20, and a suction device (not shown). Since the suction device is prior art, a detailed description thereof will be omitted. The suction devices are interconnected with the connecting tube 20 and are used to perform a suction operation relative to the position of the nostrils on the human body.

[0012] The air extraction mechanism 10 mainly includes a pump 11, a piston 12, a handle 13, a first check valve 14 (see Figure 5), and a second check valve 15 (see Figure 5). The pump 11 in this embodiment is a cylindrical body having two sealed ends, and an intake hole 111 is provided at an intermediate position on the bottom surface of the pump 11 (see Figure 5). In addition, a through hole 112 is provided at an appropriate distance from the intake hole 111 (see Figure 5).

[0013] The handle 13 mainly comprises a rod body 131 and an operating handle 132 connected to the rod body 131, with a piston 12 connected to one end of the rod body 131 away from the operating handle 132. The piston 12 is movably installed inside the pump 11, and the operating handle 132 is formed outside the pump 11. The first check valve 14 is installed to correspond to the intake port 111 (see Figure 5), and the second check valve 15 is provided in the through-hole 112 of the pump 11 (see Figure 5).

[0014] Furthermore, the air extraction mechanism 10 extends upward from the pump 11 and is further equipped with a handle portion 16 formed above the handle 13. In addition to facilitating carrying or movement, the handle portion 16 can further provide support for the palm of the hand, making it convenient to move the device by pulling it against the handle 13.

[0015] The connecting tube 20 may be a flexible tube made of plastic or silicone, and both ends are connected to the intake port 111 and the suction device, respectively. The installation of the flexible connecting tube 20 not only facilitates the displacement of the suction device, but also allows for storage space savings by winding up the connecting tube 20 during storage and overlapping the suction device and the air extraction mechanism 10.

[0016] A stopper 17 is installed on the rod body 131, and the stopper 17 in this embodiment is able to move in and out of the inside of the pump 11. In one embodiment, a first hollow column 1311 is installed on the rod body 131, and the stopper 17 in this embodiment has an insertion member and is movably inserted into the first hollow column 1311. Inside the first hollow column 1311, there is a first annular groove 1311A and a second annular groove 1311B which is spaced apart from the first annular groove 1311A, and the insertion member has an end 171 and an adjustment rod 172 extending from the end 171, and the adjustment rod 172 is provided with an annular projection 173. The adjustment rod 172 is inserted so as to correspond to the first hollow column 1311, and the annular projection 173 is selectively fitted into the first annular groove 1311A or the second annular groove 1311B so as to be positioned.

[0017] In one embodiment, the rod body 131 is further provided with a second hollow column 1312 positioned at a distance from the first hollow column 1311, and the inside of the second hollow column 1312 is provided with a first annular groove 1312A and a second annular groove 1312B positioned at a distance from the first annular groove 1312A. The adjustment rod 172 is insertable to correspond to the second hollow column 1312, and the annular projection 173 is selectively fitted into either the first annular groove 1312A or the second annular groove 1312B so as to be positioned.

[0018] In one embodiment, the cross-section of the rod body 131 is H-shaped, and storage grooves 1313 are formed on both its upper and lower sides. The adjustment rod 172 is inserted to correspond to the first hollow column 1311 or the second hollow column 1312, and its end portion 171 enters the storage groove 1313.

[0019] In one embodiment, the manual nasal aspirator capable of adjusting the negative pressure in multiple stages according to the present invention further includes a return spring 30 installed in the pump 11 and located between the piston 12 and the end wall of the pump 11. Due to the elastic restoring force of the return spring 30, both the piston 12 and the handle 13 move so as to return toward the bottom end of the pump 11. The return spring 30 according to this embodiment is covered on the outer periphery of the rod body 131.

[0020] In the examples of FIGS. 5 and 6, during use, the suction device is installed at the nostril of the human body (not shown), each finger is placed on the operating handle 132 respectively, and the contact point for urging the gripping portion 16 with force is set. The return spring 30 is combined and operated in a manual manner to continuously (or intermittently) drive the piston 12 to reciprocate in the pump 11, and by the combination of the first check valve 14 and the second check valve 15, intake and exhaust operations are generated in the pump 11.

[0021] The adjustment rod 172 of the stopper 17 is inserted so as to correspond to the first hollow column 1311. When the end portion 171 enters the storage groove 1313, the annular protrusion 173 of the adjustment rod 172 is properly fitted into the first annular groove 1311A of the first hollow column 1311 so as to be positioned, that is, the stopper 17 is positioned at the first position P1 of the rod body 131 (see FIG. 5). At this time, the stopper 17 can enter the inside of the pump 11. When the operating handle 132 moves, the piston 12 generates a first moving stroke L1 inside the pump 11. When the adjustment rod 172 of the stopper 17 is pulled and displaced from the first hollow column 1311, the annular protrusion 173 of the adjustment rod 172 is properly fitted into the second annular groove 1311B of the first hollow column 1311 so as to be positioned, that is, the stopper 17 is positioned at the second position P2 of the rod body 131 (see FIG. 6). At this time, the end portion 171 of the stopper 17 is stopped outside the pump 11, and it becomes possible for the piston 12 to generate a second moving stroke L2 inside the pump 11. The first moving stroke L1 is longer than the second moving stroke L2.

[0022] As shown in Fig. 7, for infants with a lower demand for gas volume, the user extracts the stopper 17 from the first hollow column 1311 and displaces it so as to be inserted into the second hollow column 1312. The adjustment rod 172 of the stopper 17 is pulled and displaced from the second hollow column 1312. At the same time, the annular protrusion 173 of the adjustment rod 172 is properly fitted into the second annular groove 1312B of the second hollow column 1312 so as to be positioned. That is, the stopper 17 is positioned at the third position P3 of the rod body 131 (see Fig. 7). At this time, the end portion 171 of the stopper 17 is stopped outside the pump 11, and the piston 12 can generate a third moving stroke L3 inside the pump 11. The second moving stroke L2 is longer than the third moving stroke L3.

[0023] Similarly, the first moving stroke L1 generated by the piston 12 inside the pump 11 and the first gas volume G1 inside the pump 11 inhaled from the intake hole 111 are substantially equal to the gas volume discharged when the piston 12 moves inside the pump 11. The second moving stroke L2 generated by the piston 12 inside the pump 11 and the second gas volume G2 inside the pump 11 inhaled from the intake hole 111 are substantially equal to other gas volumes discharged when the piston 12 moves inside the pump 11. The third moving stroke L3 generated by the piston 12 inside the pump 11 and the third gas volume G3 inside the pump 11 inhaled from the intake hole 111 are substantially equal to still other gas volumes discharged when the piston 12 moves inside the pump 11. The first gas volume G1 generated in the first moving stroke L1 is larger than the second gas volume G2 generated in the second moving stroke L2. The second gas volume G2 generated in the second moving stroke L2 is larger than the third gas volume G3 generated in the third moving stroke L3.

[0024] As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes and the like within the scope not departing from the gist of the present invention are also included.

Explanation of Reference Numerals

[0025] 10 Air extraction mechanism 11 Pump 111 Intake hole A through hole 112 12 pistons 13 Handle 131 Rod body 1311 First Hollow Pillar 1311A First annular groove 1311B Second annular groove 1312 Second hollow column 1312A First annular groove 1312B Second annular groove 1313 Storage groove 132 Operating handle 14 First check valve 15 Second check valve 16 Handle section 17 Stopper 171 End 172 Adjustment rod 173 Annular projection 20 Communication pipe 30 Return Spring L1 First travel leg L2 Second travel stroke L3 Third movement stage P1 first position P2 2nd position P3 third position G1 First gas volume G2 Second gas volume G3 Third gas volume

Claims

1. An air extraction mechanism comprising a pump, a piston, and a handle, wherein the pump is provided with an intake port, the handle comprises a rod body and an operating handle connected to the rod body, the piston is connected to one end of the rod body away from the operating handle, the piston is movably installed inside the pump, and the operating handle is connected to an air extraction mechanism formed outside the pump. It comprises a connecting pipe connected to the aforementioned intake port, A manual nasal suction device with multi-stage adjustable negative pressure, characterized in that a stopper is installed on the rod body, and when the stopper is in a first position on the rod body, the operating handle moves, causing the piston to generate a first movement stroke inside the pump; when the stopper is in a second position on the rod body, the operating handle moves, causing the piston to generate a second movement stroke inside the pump; and the first movement stroke is longer than the second movement stroke.

2. The manual nasal suction device according to claim 1, characterized in that when the stopper is in the first position, the stopper can enter the inside of the pump in accordance with the movement of the rod body.

3. The manual nasal suction device according to claim 2, characterized in that when the stopper is in the second position, the stopper is stopped outside the pump in accordance with the movement of the rod body.

4. The manual nasal suction device according to claim 1, characterized in that a first hollow column is installed on the rod body, the stopper has an insertion member, and the insertion member is movably inserted into the first hollow column.

5. The first hollow column is provided with a first annular groove and a second annular groove spaced apart from the first annular groove, the insertion member has an adjustment rod, the adjustment rod is provided with an annular projection, and the annular projection is selectively fitted into the first annular groove or the second annular groove so as to be positioned, characterized in that the negative pressure can be adjusted in multiple stages according to claim 4.

6. The rod body has an H-shaped cross-section with a storage groove formed therein, the insertion member has an end and an adjustment rod extending from the end, the adjustment rod is inserted so as to correspond to the first hollow column, and the end enters into the storage groove, characterized in that the negative pressure can be adjusted in multiple stages according to claim 4.

7. The rod body is provided with a first hollow column and a second hollow column spaced apart from the first hollow column, and the stopper has an insertion member, the insertion member is selectively inserted into either the first hollow column or the second hollow column, characterized in that the negative pressure can be adjusted in multiple stages according to claim 1.

8. The rod body has an H-shaped cross-section and a storage groove is formed therein, the insertion member has an end and an adjustment rod extending from the end, the adjustment rod is inserted so as to correspond to the first hollow column or the second hollow column, and the end enters into the storage groove, characterized in that the negative pressure can be adjusted in multiple stages according to claim 7.

9. The manual nasal suction device according to claim 1, further comprising a return spring installed inside the pump and located between the piston and the end wall of the pump, wherein the negative pressure can be adjusted in multiple stages.

10. The manual nasal suction device according to claim 1, characterized in that the amount of first gas drawn by the pump when the stopper is in the first position is greater than the amount of second gas drawn by the pump when the stopper is in the second position, thereby allowing for multi-stage adjustment of negative pressure.

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