Bite type blowing detection device for patent foramen ovale screening

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a bite-type blowing detection device for patent foramen ovale screening, which comprises a blowing nozzle, a joint, an air delivery pipe and a barometer, the blowing nozzle comprises a blowing pipe and a nozzle cover part arranged on the blowing pipe, one end of the blowing pipe is provided with a bite section, and the other end of the blowing pipe is provided with an air outlet. The other end of the air blowing pipe is detachably connected with the air inlet end of the connector in a sealed mode, and the mouth piece section and the open end of the mouth cover portion are arranged on the same side. One end of the air delivery pipe is connected with the air outlet end of the connector, and the other end of the air delivery pipe is connected with the barometer. According to the simple expiration detection device, a patient can achieve air blowing detection by biting the mouthpiece section on the air blowing pipe, the patient does not need to hold the air blowing nozzle, the simple expiration detection device is particularly suitable for the patient with the hand injured or the hand weakness, and the problem that an existing simple expiration detection device needs to be held by the patient and is not suitable for the patient with the hand injured or the hand weakness is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a bite-type air-blowing detection device for screening patent foramen ovale. Background Art

[0002] In the process of using color Doppler ultrasound to screen patients for patent foramen ovale clinically, patients are required to maintain continuous breathing movement for a period of time and reach a certain exhalation depth. There is no exhalation detection device dedicated to screening for patent foramen ovale in the existing clinical practice, which makes it difficult for patients to ensure their exhalation, or a temporary assembled exhalation detection device is used, such as a simple exhalation detection device temporarily assembled from a disposable mouthpiece, a connector, an air supply pipe and a barometer. In this detection device, a disposable mouthpiece is detachably sealed and connected to the air inlet end of the connector, one end of the air supply pipe is connected to the air outlet end of the connector, and the other end of the air supply pipe is connected to the barometer. In this way, the barometer is used to display the patient's exhalation depth, thereby ensuring that the patient's exhalation depth is sufficient, which helps to improve the screening effect of patent foramen ovale. However, during the use of the above-mentioned detection device, the patient needs to continuously press the disposable mouthpiece around the mouth. For patients with hand injuries or hand weakness, others are required to assist in the detection, which is inconvenient to operate and prone to leakage problems. Therefore, it is necessary to design a more applicable exhalation detection device for screening patent foramen ovale. Utility Model Content

[0003] The utility model aims to provide a patent foramen ovale screening bite-type air-blowing detection device to solve the problem that the existing simple breath detection device is not suitable for patients with hand injuries or hand weakness.

[0004] In order to achieve the above-mentioned purpose, the scheme of the utility model is: a bite-type air-blowing detection device for screening patent foramen ovale, comprising an air-blowing nozzle, a joint, an air supply pipe and a pressure gauge, the air-blowing nozzle comprising an air-blowing pipe and a mouth cover portion arranged on the air-blowing pipe, one end of the air-blowing pipe having a mouth-blowing section, the other end of the air-blowing pipe being detachably and sealingly connected to the air inlet end of the joint, the mouth-blowing section being on the same side as the open end of the mouth cover portion; one end of the air-blowing pipe is connected to the air outlet end of the joint, and the other end of the air-blowing pipe is connected to the pressure gauge.

[0005] The working principle and beneficial effects of this solution are as follows: in this solution, the patient bites the mouthpiece section of the air blow tube, and the patient's lips fit against the outer wall of the mouthpiece section. At the same time, the edge of the mouth mask contacts and squeezes the skin near the patient's mouth, thereby forming a sealed space. The patient does not need to hold the air blow mouthpiece, which is particularly suitable for patients with hand injuries or hand weakness. It solves the problem that the existing simple breath detection device needs to be held by the patient and is not suitable for patients with hand injuries or hand weakness. This solution has a wider scope of application.

[0006] Moreover, the patient's lips fit against the outer wall of the mouthpiece to form a primary seal, and the edge of the mouth mask (open end) fits tightly against the skin near the patient's mouth to form a secondary seal with good airtightness and no leakage, thereby ensuring the accuracy of the patient's exhalation depth detection and helping to improve the screening effect of patent foramen ovale.

[0007] Optionally, a plurality of blocking plates are provided on the outer wall of the mouthpiece segment, a single blocking plate is arranged along the circumference of the mouthpiece segment, and a plurality of blocking plates are arranged along the axial direction of the mouthpiece segment.

[0008] In the present solution, there are gaps between the several blocking plates on the mouthpiece segment. When the patient bites the mouthpiece segment, the patient's upper and lower incisors are embedded in the gaps. In this way, on the one hand, the movement resistance between the mouthpiece segment and the teeth can be increased, thereby improving the effect of fixing the mouthpiece segment. On the other hand, the contact area between the mouthpiece segment and the patient's lips can be increased, and an uneven primary seal can be formed, thereby improving the sealing performance.

[0009] Optionally, a plurality of bite grooves are provided on the outer wall of the mouthpiece segment, a single bite groove is arranged along the circumference of the mouthpiece segment, and a plurality of bite grooves are arranged along the axial direction of the mouthpiece segment.

[0010] In this solution, when the patient bites the mouthpiece segment, the patient's upper and lower incisors are embedded in the occlusal groove, which can increase the movement resistance between the mouthpiece segment and the teeth, thereby improving the fixation effect of the mouthpiece segment and preventing the mouthpiece from sliding outward during exhalation.

[0011] Optionally, a rubber ring is provided on the edge of the mouth mask portion.

[0012] In this solution, the rubber ring on the mouth mask part has good flexibility, which reduces the discomfort caused by the edge of the mouth mask part squeezing the patient's face.

[0013] Optionally, the mouth mask portion is provided with a strap for fixing.

[0014] In this solution, the mouth mask is fixed on the patient's face by using a strap, so that it can be suitable for patients with inconvenient biting and inconvenient hands.

[0015] Optionally, both sides of the mouth mask are provided with D-shaped buckles, and the two ends of the strap are respectively passed through the corresponding D-shaped buckles and then connected by Velcro.

[0016] In this solution, the blowing nozzle is a disposable item, so after the blowing nozzle is used, the lace can be removed and reused.

[0017] Optionally, the air blowing pipe is connected to the air inlet end of the joint via a threaded structure.

[0018] In this solution, a detachable sealed connection between the air blowing pipe and the joint is achieved through a threaded structure.

[0019] Optionally, the air blowing pipe is connected to the air inlet end of the joint via an interference fit plug-in structure.

[0020] In this solution, a detachable sealed connection between the air blowing pipe and the joint is achieved through an interference fit plug-in structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a bite-type air-blowing detection device for screening patent foramen ovale in Embodiment 1 of the present utility model;

[0022] Figure 2 for Figure 1 Left view of the middle blowing nozzle;

[0023] Figure 3 for Figure 1 A is an enlarged schematic diagram;

[0024] Figure 4 This is a structural schematic diagram of a bite-type air-blowing detection device for screening patent foramen ovale in Embodiment 2 of the present utility model;

[0025] Figure 5 for Figure 4 A magnified schematic diagram of B;

[0026] Figure 6 This is a schematic diagram of the structure of the air blowing nozzle in the third embodiment of the present utility model. DETAILED DESCRIPTION

[0027] The following is further described in detail through specific implementation methods:

[0028] The marks in the drawings of the specification include: blowing nozzle 1, blowing tube 110, mouthpiece section 111, mouth cover part 120, joint 2, air supply tube 3, air pressure gauge 4, rubber ring 5, blocking plate 6, bite groove 7, D-shaped buckle 8, lace 9, Velcro mother surface 10.

[0029] Embodiment 1

[0030] This embodiment is basically Figure 1 and Figure 2 As shown: a bite-type air-blowing detection device for screening patent foramen ovale, comprising an air-blowing nozzle 1, a joint 2, an air delivery pipe 3 and a barometer 4. The air-blowing nozzle 1 comprises an air-blowing pipe 110 and a mouth cover portion 120 arranged on the air-blowing pipe 110, a rubber ring 5 is arranged on the edge (open end) of the mouth cover portion 120, the front end of the air-blowing pipe 110 comprises a mouthpiece section 111, the mouthpiece section 111 is on the same side as the open end of the mouth cover portion 120, and a plurality of blocking sheets 6 are arranged on the outer wall of the mouthpiece section 111, in combination with the air-blowing pipe 110, the mouthpiece section 111 is provided with a plurality of blocking sheets 6, and the mouthpiece section 111 is provided with a plurality of blocking sheets 6. Figure 3As shown, a single blocking sheet 6 is arranged along the circumference of the mouthpiece segment 111, and a plurality of blocking sheets 6 are arranged along the axial direction of the mouthpiece segment 111. In this embodiment, the blocking sheet 6 and the mouthpiece segment 111 are integrally formed, and the gap between two adjacent blocking sheets 6 is 3 mm. In another embodiment, the blocking sheet 6 is made of silicone, which is soft and convenient for the patient to bite the mouthpiece segment 111.

[0031] The rear end of the air blowing pipe 110 is connected to the air inlet end of the connector 2 via a threaded structure. In another embodiment, the rear end of the air blowing pipe 110 is connected to the connector 2 via an interference fit plug-in structure. One end of the air delivery pipe 3 is connected to the air outlet end of the connector 2, and the other end of the air delivery pipe 3 is connected to the barometer 4.

[0032] When in use, the medical staff (or other persons) asks the patient to open his mouth, puts the mouthpiece section 111 into the patient's oral cavity, and makes the rubber ring 5 on the edge of the mouth mask 120 contact and fit tightly with the skin near the patient's mouth. Then, the patient is asked to bite the mouthpiece section 111 of the air blowing tube 110. At this time, the patient's upper and lower incisors fall into the corresponding gaps between the two blocking sheets 6, thereby biting the mouthpiece section 111 tightly. At the same time, the patient's lips contact the mouthpiece section 111 and the blocking sheet 6 to form a primary seal, and the rubber ring 5 of the mouth mask 120 is in close contact with the skin near the patient's mouth to form a secondary seal, thereby ensuring good air tightness and not easy to leak. Then, the patient begins to exhale, and the exhaled gas flows into the air supply tube 3 through the air blowing tube 110, and then the barometer 4 measures the patient's exhalation depth.

[0033] During the above process, the patient does not need to hold the blowing nozzle 1, which is particularly suitable for patients with hand injuries or hand weakness, and has a wider range of applications. Moreover, in the present embodiment, the patient forms a primary seal and a secondary seal with the blowing nozzle 1 before exhalation, which has good air tightness and is not easy to leak, thereby ensuring the accuracy of the patient's exhalation depth detection and helping to improve the screening effect of patent foramen ovale. In addition, the design of the blocking sheet 6 can also increase the movement resistance between the mouthpiece segment 111 and the teeth, thereby improving the effect of fixing the mouthpiece segment 111 and preventing the mouthpiece from sliding outward during exhalation. In addition, the blowing nozzle 1 is detachable and can be used as a disposable consumable to avoid cross-infection problems.

[0034] Embodiment 2

[0035] The difference between this embodiment and the first embodiment is that: Figure 4 and Figure 5 As shown, no blocking plate 6 is provided on the outer wall of the mouthpiece segment 111 , and a plurality of engaging grooves 7 are provided on the outer wall of the mouthpiece segment 111 . A single engaging groove 7 is arranged along the circumference of the mouthpiece segment 111 , and a plurality of engaging grooves 7 are arranged along the axial direction of the mouthpiece segment 111 .

[0036] In this embodiment, when the patient bites the mouthpiece segment 111, the patient's upper and lower incisors sink into the corresponding occlusal grooves 7, increasing the movement resistance between the mouthpiece segment 111 and the teeth, thereby improving the effect of fixing the mouthpiece segment 111 and preventing the mouthpiece from sliding outward during exhalation.

[0037] Embodiment 3

[0038] The difference between this embodiment and the first embodiment is that: Figure 6 As shown, both sides of the mouth mask part 120 are integrally formed with D-shaped buckles 8, and the two ends of the lace 9 pass through the corresponding D-shaped buckles 8 and are self-connected by Velcro, that is, the two ends of the lace 9 are sewn with Velcro female surface 10 and Velcro male surface.

[0039] In this embodiment, the medical staff puts the strap 9 around the patient's head and then asks the patient to bite the mouthpiece section 111. Then, the medical staff tears apart the Velcro female surface 10 and the Velcro male surface at one end of the strap 9, tightens them, and then adheres them, thereby fixing the mouthpiece section and reducing the pressure on the patient to bite the mouthpiece section 111. In this way, this embodiment is also particularly suitable for patients with inconvenient biting and inconvenient hands.

[0040] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the utility model. The specific implementation methods and other records in the specification can be used to explain the content of the claims.

Claims

1. A bite-type air-blowing detection device for screening patent foramen ovale, comprising an air-blowing nozzle, a joint, an air delivery tube and an air pressure gauge, characterized in that: The air blowing nozzle includes an air blowing tube and a mouth cover portion arranged on the air blowing tube, one end of the air blowing tube is provided with a mouthpiece section, the other end of the air blowing tube is detachably sealedly connected to the air inlet end of the joint, and the mouthpiece section is on the same side as the open end of the mouth cover portion; one end of the air supply pipe is connected to the air outlet end of the joint, and the other end of the air supply pipe is connected to a pressure gauge.

2. The bite-type air-blowing detection device for patent foramen ovale screening according to claim 1, characterized in that: A plurality of blocking sheets are arranged on the outer wall of the mouthpiece segment, a single blocking sheet is arranged along the circumference of the mouthpiece segment, and a plurality of blocking sheets are arranged along the axial direction of the mouthpiece segment.

3. The bite-type air-blowing detection device for patent foramen ovale screening according to claim 1, characterized in that: A plurality of bite grooves are arranged on the outer wall of the mouthpiece segment, a single bite groove is arranged along the circumference of the mouthpiece segment, and a plurality of bite grooves are arranged along the axial direction of the mouthpiece segment.

4. The bite-type air-blowing detection device for patent foramen ovale screening according to claim 1, characterized in that: A rubber ring is arranged on the edge of the mouth cover part.

5. The bite-type air-blowing detection device for patent foramen ovale screening according to claim 1, characterized in that: The mouth mask portion is provided with a fixing strap.

6. The bite-type air-blowing detection device for patent foramen ovale screening according to claim 5, characterized in that: Both sides of the mouth mask are provided with D-shaped buckles, and the two ends of the strap are respectively passed through the corresponding D-shaped buckles and then connected by Velcro.

7. The bite-type air-blowing detection device for patent foramen ovale screening according to claim 1, characterized in that: The air blowing pipe is connected to the air inlet end of the joint via a threaded structure.

8. The bite-type air-blowing detection device for patent foramen ovale screening according to claim 1, characterized in that: The air blowing pipe is connected to the air inlet end of the joint via an interference fit plug-in structure.

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