A breathing trainer

Abstract

The present invention relates to a breathing trainer, comprising a tube shell, an air blowing channel and a pressure rod, wherein one end of the tube shell is open and the other end is provided with an air blowing port, the air blowing channel is assembled in the tube shell, one end of which is provided with an air blowing nozzle extending into the air blowing port, and the other end is provided with an active cavity with a cylindrical inner cavity, one end of the pressure rod is connected to a piston part which is sealed and connected to the inner wall of the active cavity and can slide relatively, a first elastic member is connected between the piston part and the end of the active cavity away from the air blowing channel, the other end of the pressure rod passes through the corresponding end of the active cavity, and is connected to an end part which partially exposes the open end of the tube shell, and the piston part can move along the active cavity and drive the pressure rod to move after entering the air blowing channel to blow gas. Advantages: simple and reasonable structural design, easy to use, can greatly improve the ability of patients to complete the standard Valsalva maneuver, and thus improve the efficiency of doctors in screening patients for PFO.

Description

Technical Field

[0001] The present invention relates to the field of medical equipment, and in particular to a breathing trainer. Background Art

[0002] Patent foramen ovale (PFO) is a common congenital heart anomaly in adults. The common method for diagnosing patent foramen ovale in clinical practice is the transcranial Doppler ultrasound bubble test (c-TCD). In recent years, a large number of studies have confirmed that the transcranial Doppler ultrasound bubble test (c-TCD) has a high application value in the diagnosis of PFO. c-TCD can be performed under two conditions: resting and Valsalva maneuver. The Valsalva maneuver can increase the right atrial pressure, which is more likely to induce the opening of potential PFO and cause right-to-left shunt, thereby increasing the sensitivity of c-TCD examination of PFO. At present, doctors ask patients to do the Valsalva maneuver in clinical practice, using a rubber tube connected to a pressure gauge, and then ask the patient to blow into the rubber tube. The effect of using this simple device is not very ideal.

[0003] Based on the above problems, it is urgent to develop a new and professional breathing trainer. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a breathing trainer, which effectively overcomes the defects of the prior art.

[0005] The technical solution of the present invention to solve the above technical problems is as follows:

[0006] A breathing trainer comprises a tube shell, an air blowing channel and a pressure rod, wherein one end of the tube shell is open and the other end is provided with an air blowing port, the air blowing channel is assembled in the tube shell, one end of the tube shell is provided with an air blowing nozzle extending into the air blowing port, and the other end is provided with an active cavity with a cylindrical inner cavity, one end of the pressure rod is connected to a piston part which is sealed and connected to the inner wall of the active cavity and can slide relatively, a first elastic member is connected between the piston part and an end of the active cavity away from the air blowing channel, the other end of the pressure rod passes through the corresponding end of the active cavity, and is connected to an end part which is partially exposed from the open end of the tube shell, and the piston part can move along the active cavity and drive the pressure rod to move after blowing gas into the air blowing channel.

[0007] Based on the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the above-mentioned active cavity includes a cavity body and a first positioning sleeve. The above-mentioned cavity body is integrally formed with the other end of the above-mentioned blowing channel, and its end away from the above-mentioned blowing channel is open. The above-mentioned first positioning sleeve is sealingly installed on the open end of the above-mentioned blowing channel, and is provided with a through hole for the above-mentioned pressure rod to pass through. The above-mentioned tube shell is provided with a socket that abuts against the end of the above-mentioned first positioning sleeve away from the above-mentioned cavity.

[0009] Furthermore, the first elastic member is a spring, which is sleeved outside one end of the pressure rod.

[0010] Furthermore, it also includes a sound reminder component, and the other end of the pressure rod is connected to the sound reminder component to trigger the sound reminder component to make a sound when gas is blown into the blowing channel to move the piston part and the pressure rod.

[0011] Furthermore, the sound reminder component includes a fixed sleeve with one end open, a movable sleeve and a second elastic member, the end head has a cavity, and the side walls on the opposite sides of the cavity are provided with strip holes, the other end of the pressure rod is provided with an extrusion hole expanded toward the end thereof, the movable sleeve is a sleeve structure with one end open, and is arranged in the cavity, and two extrusion strips extending toward the pressure rod are vertically provided on its inner bottom wall, the fixed sleeve is open at one end, and a through hole for the extrusion strips to pass through is provided at the other end, one end of the fixed sleeve extends into the movable sleeve and is sleeved on the two extrusion strips, the other end of the fixed sleeve is provided with positioning pieces passing through the strip holes on both sides, the positioning pieces are engaged with the matching grooves on the inner wall of the tube shell, the second elastic member is connected between the inner wall of the other end of the fixed sleeve and the inner bottom wall of the movable sleeve, and the two extrusion strips pass through the fixed sleeve The cam is adapted to move the end of the second elastic member relative to the end of the second elastic member so as to move the end of the second elastic member away from the end of the second elastic member and move the end of the second elastic member relative to the end of the second elastic member. The cam is adapted to move the end of the second elastic member relative to the end of the second elastic member and move the end of the second elastic member relative to the end of the second elastic member. The cam is adapted to move the end of the second elastic member relative to the end of the second elastic member. The cam is adapted to move the end of the second elastic member relative to the end of the second elastic member. The cam is adapted to move the end of the second elastic member relative to the end of the second elastic member.

[0012] Furthermore, a limiting hook is protruded from an open outer edge of one end of the fixed sleeve, and a limiting protrusion matching the limiting hook is protruded from an open inner edge of one end of the movable sleeve. The limiting protrusion is used to block the limiting hook to prevent the movable sleeve from separating from the fixed sleeve.

[0013] Furthermore, the above-mentioned end head includes a second positioning sleeve, a ring sleeve and an end cover, one end of the above-mentioned second positioning sleeve is open, both ends of the above-mentioned ring sleeve are open, and the ring sleeve is clamped and assembled between the open end of the above-mentioned second positioning sleeve and the end cover, and the three are detachably connected to each other, and the internal area between the three forms the above-mentioned cavity, an assembly hole is provided in the middle of the other end of the above-mentioned second positioning sleeve, the other end of the above-mentioned pressure rod passes through the above-mentioned assembly hole and is connected and fixed to the assembly hole, and the above-mentioned strip holes are provided on both sides of the end of the above-mentioned ring sleeve connected to the above-mentioned second positioning sleeve along its axial direction.

[0014] Furthermore, the tube shell is composed of sub-shell flaps on both sides that are snap-fitted and spliced ​​together.

[0015] The beneficial effects of the present invention are: simple and reasonable structural design, easy use, and can greatly improve the ability of patients to complete the standard Valsalva maneuver, thereby improving the efficiency of doctors in performing PFO screening on patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural stereogram of the breathing trainer of the present invention;

[0017] Figure 2 A schematic structural diagram of a breathing trainer of the present invention from one viewing angle;

[0018] Figure 3 for Figure 2 Structural cross-section view of the middle AA surface;

[0019] Figure 4 for Figure 3 Schematic diagram of the local structure;

[0020] Figure 5 A schematic structural diagram of the breathing trainer of the present invention from another perspective;

[0021] Figure 6 for Figure 4 Structural cross-section view of the middle BB surface;

[0022] Figure 7 for Figure 6 Schematic diagram of the local structure;

[0023] Figure 8 It is a structural exploded view of the breathing trainer of the present invention.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Tube shell; 2. Air blowing channel; 3. Pressure rod; 4. End; 5. Sound reminder component; 21. Air blowing nozzle; 22. Movable cavity; 31. Piston part; 32. First elastic member; 33. Extrusion hole; 41. Second positioning sleeve; 42. Ring sleeve; 43. End cover; 51. Fixed sleeve; 52. Moving sleeve; 53. Second elastic member; 221. Cavity; 222. First positioning sleeve; 511. Limiting hook; 521. Extrusion strip; 522. Limiting block; 523. Limiting protrusion. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0027] Example: Figures 1 to 8 As shown, the breathing trainer of this embodiment includes a tube shell 1, an air blowing channel 2 and a pressure rod 3. One end of the tube shell 1 is open, and the other end is provided with an air blowing port. The air blowing channel 2 is assembled in the tube shell 1, and one end thereof is provided with an air blowing nozzle 21 extending into the air blowing port, and the other end is provided with an active cavity 22 with a cylindrical inner cavity. One end of the pressure rod 3 is connected to a piston part 31 which is sealed and connected to the inner wall of the active cavity 22 and can slide relatively. A first elastic member 32 is connected between the piston part 31 and an end of the active cavity 22 away from the air blowing channel 2. The other end of the pressure rod 3 passes through the corresponding end of the active cavity 22 and is connected to an end head 4 partially exposed from the open end of the tube shell 1. The piston part 31 can move along the active cavity 22 after entering the air blowing channel 2 to blow gas and drive the pressure rod 3 to move.

[0028] The usage process is as follows:

[0029] The patient blows air into the blowing channel 2 through the blowing port via the air nozzle 21. The air pressure in the blowing channel 2 increases, acting on the piston portion 31 of the pressure rod 3, so that the pressure rod 3 is pushed and moved toward the open end of the tube shell 1, so that the end head 4 connected to the other end of the pressure rod 3 extends out of the open end of the tube shell 1. Medical staff can judge the effectiveness of the blowing by the movement of the end head 4. The trainer has a simple and reasonable structural design and is easy to use. It can greatly improve the patient's ability to complete the standard Valsalva maneuver, thereby improving the efficiency of doctors in screening patients for PFO.

[0030] As a preferred embodiment, the above-mentioned active cavity 22 includes a cavity body 221 and a first positioning sleeve 222. The above-mentioned cavity body 221 is integrally formed with the other end of the above-mentioned blowing channel 2, and its end away from the above-mentioned blowing channel 2 is open. The above-mentioned first positioning sleeve 222 is sealed and installed on the open end of the above-mentioned blowing channel 2, and is provided with a through hole for the above-mentioned pressure rod 3 to pass through. The above-mentioned tube shell 1 is provided with a socket 11 which abuts against the end of the above-mentioned first positioning sleeve 222 away from the above-mentioned cavity 221.

[0031] In this embodiment, the movable chamber 22 adopts a split design, which is convenient for disassembly and assembly, easy to produce, reduces the difficulty of production, and is also conducive to assembling the pressure rod 3 and the piston part 31.

[0032] The piston portion 31 is a circular ring structure, and a sealing ring is disposed at one end thereof for sealing contact with the inner wall of the active chamber 22 .

[0033] Preferably, the first elastic member 32 is a spring, which is sleeved on the outside of one end of the pressure rod 3. In the initial state, the first elastic member 32 is slightly compressed, and the piston part 31 and the top wall of one end of the active chamber 22 connected to the blowing channel 2 are abutted against each other. During the blowing process, the first elastic member 32 is compressed and the piston part 31 and the pressure rod 3 move at the same time. The design of the spring makes the elastic force distribution more uniform, and it is not easy to be skewed or stuck.

[0034] As a preferred embodiment, it also includes a sound reminder component 5, and the other end of the pressure rod 3 is connected to the sound reminder component 5 to trigger the sound reminder component 5 to make a sound when gas is blown into the blowing channel 2 to move the piston part 31 and the pressure rod 3.

[0035] In this embodiment, by setting up the sound reminder component 5, a reminder can be given while the pressure rod 3 is effectively moving (the end 4 extends out of the tube shell 1). The double reminder ensures that both medical staff and patients can understand the training situation so as to make correct judgments.

[0036] Specifically, Figure 3 , 4As shown in Figures 6 and 7, the sound reminder component 5 includes a fixed sleeve 51 with an open end, a movable sleeve 52 and a second elastic member 53. The end head 4 has a cavity inside, and the side walls on opposite sides of the cavity are provided with strip holes. The other end of the pressure rod 3 is provided with an extrusion hole 33 expanding toward the end thereof. The movable sleeve 52 is a sleeve structure with an open end, and is arranged in the cavity. Two extrusion strips 521 extending toward the pressure rod 3 are vertically provided on the inner bottom wall. The fixed sleeve 51 is open at one end. , the other end is provided with a through hole for the extrusion strip 521 to pass through, one end of the fixed sleeve 51 extends into the movable sleeve 52 and is sleeved outside the two extrusion strips 521, the other end of the fixed sleeve 51 is provided with positioning pieces passing through the strip holes on both sides, the positioning pieces are engaged with the matching card grooves on the inner wall of the tube shell 1, the second elastic member 53 is connected between the inner wall of the other end of the fixed sleeve 51 and the inner bottom wall of the movable sleeve 52, and the two extrusion strips 521 pass through the above The through hole of the fixing sleeve 51 is provided with a stopper 522 which abuts against the outer periphery of the through hole on the side opposite to each other. The pressure rod 3 drives the end head 4 to move relative to the fixing sleeve 51 during the movement after the gas is blown into the blowing channel 2, and moves to the outside of the two ends of the extrusion strips 521, and squeezes the two together, so that the stopper 522 avoids the edge of the through hole, and in this state, the second elastic member 53 gradually deforms and stretches from the initial compression state. , and drives the extrusion strip 521 to retract into the interior of the fixing sleeve 51, so that the limit blocks 522 on both sides are retracted to the interior of the fixing sleeve 51 and then released outwards, and collide with the inner wall of the fixing sleeve 51 to make a sound, and the ends of the limit blocks 522 on both sides close to the pressure rod 3 are set as inclined surfaces, and the inner hole edge of the through hole is set as a smooth curved chamfer matching the inclined surface, so that the inclined surface can slide along the inner side of the through hole from the inside of the fixing sleeve 51 under the action of external force, and pass through the through hole.

[0037] In this scheme, in the initial state, the second elastic member 53 is in a compressed state, and the movable sleeve 52 is against the bottom wall of the internal cavity of the end head 4 under the elastic force of the second elastic member 53. Because the two sides of the end head 4 are designed with strip holes, and the two sides of the fixed sleeve 51 are provided with positioning pieces passing through the strip holes, the end head 4 can move relative to the fixed sleeve 51 along the length extension direction of the pressure rod 3. Specifically, when the patient blows air into the blowing channel 2, the air pressure acts on the piston portion 31 and pushes the pressure rod 3 toward the open end of the tube shell 1, and at the same time, drives the end head 4 connected to the pressure rod 3 to move relative to the fixed sleeve 51. In this process, the movable sleeve 52 is always kept against the bottom wall of the cavity of the end head 4 under the action of the second elastic member 53, and is always kept in a compressed deformation state, and the movable sleeve 52 follows the end head 4 to move away from the fixed sleeve 51. At the same time, the extrusion hole 33 of the pressure rod 3 gradually approaches and wraps the ends of the two extrusion strips 521, and uses the extrusion hole 33 to squeeze the two extrusion strips 521 toward each other. When the two extrusion strips 521 are close to each other, the two limit blocks 522 are also close to each other and move to the two end areas of the through hole, so that the limit blocks 522 are released from the engagement limit state with the edge of the through hole. At the same time, the movable sleeve 52 is always affected by the elastic force of the second elastic member 53. Under the action of this elastic force, the fixed sleeve 51 moves relative to the movable sleeve 52 and drives the two extrusion strips 521 to move to the limit blocks 522 at the side ends of the two to retract into the cavity of the end head 4. , the ends of the two extrusion strips 521 are separated from the extrusion hole 33 at the other end of the pressure rod 3, and recover their deformation to be relatively separated. At the same time, the limit block 522 hits the inner wall of the cavity to produce a sound prompt. After the whole set of Valsalva actions is completed, the first elastic member 32 drives the pressure rod 3 to move back to its original position, and drives the end head 4 to move relative to the fixed sleeve 51, so that the movable sleeve 52 moves close to the fixed sleeve 51, and the ends of the two strips 521 slide along the inner inclined surface of the through hole, and after passing through the through hole, they are engaged at the outer edge of the through hole.

[0038] The sound reminder component 5 has a reasonable structural design and effectively generates a reminder as the pressure rod 3 moves, which helps medical staff and patients to judge whether the Valsalva maneuver is effective and standard.

[0039] Preferably, a limiting hook 511 is protruded from an open outer edge of one end of the fixed sleeve 51, and a limiting protrusion 523 matching the limiting hook 511 is protruded from an open inner edge of one end of the movable sleeve 52. The limiting protrusion 523 is used to block the limiting hook 511 to prevent the movable sleeve 52 from detaching from the fixed sleeve 51.

[0040] In this solution, the cooperation between the limiting hook 511 and the limiting protrusion 523 can prevent the movable sleeve 52 and the fixed sleeve 51 from being separated from each other, so that the two can cooperate more closely.

[0041] As a preferred embodiment, Figure 8 As shown, the end cap 4 includes a second positioning sleeve 41, a ring sleeve 42 and an end cover 43. The second positioning sleeve 41 is open at one end, and the ring sleeve 42 is open at both ends, and is clamped and assembled between the open end of the second positioning sleeve 41 and the end cover 43. The three are detachably connected to each other, and the internal area between the three forms the cavity. An assembly hole is provided in the middle of the other end of the second positioning sleeve 41, and the other end of the pressure rod 3 passes through the assembly hole and is connected and fixed to the assembly hole. The strip holes are provided on both sides of the end of the ring sleeve 42 connected to the second positioning sleeve 41 along its axial direction.

[0042] In this embodiment, the end head 4 is a modular structure, which is more convenient to assemble and disassemble, has low production difficulty, and is easy to assemble the sound reminder component 5 therein.

[0043] In the actual production process, the end cover 43 is always exposed outside the open end of the tube shell 1 when the trainer is not in use. During the patient's insufflation, the ring sleeve 42 is partially pushed out. Medical staff can judge the standard and effectiveness of the Valsalva maneuver based on the pushing status of the ring sleeve 42.

[0044] More preferably, the surfaces of the ring sleeve 42 and the end cover 43 are two different colors, which is convenient for medical staff to distinguish and judge.

[0045] The above-mentioned tube shell 1 is composed of sub-shell halves on both sides that are spliced ​​and engaged with each other. Generally, the tube shell 1 is cut into two along the circumference of the tube shell 1, and the two sub-shell halves are engaged with each other using the engaging structure at the connection.

[0046] Generally, the tube shell 1 is in the shape of a long strip, with one end open and the other end provided with a blowing port extending outward.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A breathing training device, characterized in that: The invention comprises a tube shell (1), a blowing channel (2) and a pressure rod (3); the tube shell (1) is open at one end and provided with a blowing port at the other end; the blowing channel (2) is assembled in the tube shell (1); one end thereof is provided with a gas blowing nozzle (21) extending into the blowing port; the other end thereof is provided with an active cavity (22) having a cylindrical inner cavity; one end of the pressure rod (3) is connected to a piston part (31) which is sealed and relatively slidably connected to the inner wall of the active cavity (22); a first elastic member (32) is connected between the piston part (31) and an end of the active cavity (22) away from the blowing channel (2); the other end of the pressure rod (3) passes through the corresponding end of the active cavity (22) and is connected to an end head (4) partially exposed from the open end of the tube shell (1); the piston part (31) can move along the active cavity (22) and drive the pressure rod (3) to move after entering the blowing channel (2) and blowing gas into it.

2. A breathing training device according to claim 1, characterized in that: The active cavity (22) comprises a cavity body (221) and a first positioning sleeve (222); the cavity body (221) is integrally formed with the other end of the blowing channel (2), and one end thereof away from the blowing channel (2) is open; the first positioning sleeve (222) is sealingly mounted on the open end of the blowing channel (2), and is provided with a through hole for the pressure rod (3) to pass through; and a holder (11) is provided in the tube shell (1) and is in contact with one end of the first positioning sleeve (222) away from the cavity body (221).

3. A breathing training device according to claim 1, characterized in that: The first elastic member (32) is a spring, which is sleeved outside one end of the pressure rod (3).

4. A breathing training device according to claim 1, characterized in that: It also comprises a sound reminder component (5), the other end of the pressure rod (3) being connected to the sound reminder component (5) and being used for triggering the sound reminder component (5) to emit a sound when gas is blown into the blowing channel (2) to cause the piston (31) and the pressure rod (3) to move.

5. A breathing training device according to claim 4, characterized in that: The sound reminder component (5) comprises a fixed sleeve (51) with an open end, a movable sleeve (52) and a second elastic member (53); the end head (4) has a cavity inside, and the side walls on opposite sides of the cavity are provided with strip holes; the other end of the pressure rod (3) is provided with an extrusion hole (33) expanding toward the end thereof; the movable sleeve (52) is a sleeve structure with an open end and is arranged in the cavity; two extrusion strips (521) extending toward the pressure rod (3) are vertically provided on the inner bottom wall; the fixed sleeve (51) has an open end and the other end is provided with a strip hole (33) expanding toward the end thereof; One end of the fixed sleeve (51) is provided with a through hole for the extrusion strip (521) to pass through, one end of the fixed sleeve (51) extends into the movable sleeve (52) and is sleeved outside the two extrusion strips (521), and the other end of the fixed sleeve (51) is provided with positioning pieces passing through the strip holes on both sides, respectively, on opposite sides, and the positioning pieces are engaged with matching slots on the inner wall of the tube shell (1), and the second elastic member (53) is connected between the inner wall of the other end of the fixed sleeve (51) and the inner bottom wall of the movable sleeve (52), and the two extrusion strips (521) pass through the fixed sleeve (51). The fixing sleeve (51) has a through hole, and a stopper (522) is provided on the side facing away from each other, and is abutted against the outer periphery of the through hole. The pressure rod (3) drives the end head (4) to move relative to the fixing sleeve (51) during the movement process after the gas is blown into the blowing channel (2), and moves to the outside of the two extrusion strips (521), and squeezes the two together, so that the stopper (522) avoids the hole edge of the through hole, and in this state, the second elastic member (53) gradually deforms and stretches from the initial compression state. The pressing rod (3) is provided with a plurality of pressing members, and the pressing members (521) are pressed against the pressing rod (3) to form a plurality of pressing members. The ...

6. A breathing training device according to claim 5, characterized in that: A limiting hook (511) is protruding from an open outer edge of one end of the fixed sleeve (51), and a limiting protrusion (523) matching the limiting hook (511) is protruding from an open inner edge of one end of the movable sleeve (52), wherein the limiting protrusion (523) is used to block the limiting hook (511) to prevent the movable sleeve (52) from detaching from the fixed sleeve (51).

7. A breathing training device according to claim 5, characterized in that: The end head (4) comprises a second positioning sleeve (41), a ring sleeve (42) and an end cover (43); the second positioning sleeve (41) is open at one end, the ring sleeve (42) is open at both ends and is clamped and assembled between the open end of the second positioning sleeve (41) and the end cover (43); the three are detachably connected to each other, and the internal area between the three forms the cavity; an assembly hole is provided in the middle of the other end of the second positioning sleeve (41); the other end of the pressure rod (3) passes through the assembly hole and is connected and fixed to the assembly hole; the strip holes are provided on both sides of the end of the ring sleeve (42) connected to the second positioning sleeve (41) along its axial direction.

8. A breathing training device according to any one of claims 1 to 7, characterized in that: The tube shell (1) is composed of sub-shell flaps on both sides that are snap-fitted and spliced ​​together.

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