CN209221225U - A kind of flexible limit mechanism of ventilator - Google Patents

Abstract

A flexible limiting mechanism for a ventilator, including at least one flexible connection structure, the air circuit module and the housing are positioned through the flexible connection structure; and at least one position limiting structure is also provided between the air circuit module and the housing ; The air inlet of the air path module is connected with an opening on the housing through a flexible buffer tube and communicated with the air path, and the air outlet is connected with an element downstream in the airflow direction through another flexible buffer tube and communicated with the air path. Compared with the prior art, the gas circuit module of the utility model is flexibly connected with the housing, which can eliminate the vibration generated during work, has a significant vibration reduction effect, and can avoid damage to components; and provides a certain air circuit module The free displacement space avoids hard contact with the shell and avoids damage to the gas circuit module when external force impacts.

Description

A flexible limit mechanism for ventilator

technical field

The utility model relates to the field of medical equipment, in particular to a flexible limiting mechanism of a ventilator.

Background technique

As an effective means of artificially replacing the spontaneous ventilation function, the ventilator has been widely used in respiratory failure caused by various reasons, anesthesia breathing management during major surgery, respiratory support treatment and emergency resuscitation, and occupies an important position in the field of modern medicine. It is a very important medical device that can prevent and treat respiratory failure, reduce complications, save and prolong the life of patients.

Its working principle is to detect the signal of the patient's airway obstruction through the controller, properly pressurize the air in the airway of the ventilator, and then forcefully open the patient's airway occlusion, provide continuous ventilation for the patient, and keep the patient's body to obtain enough oxygen. .

At present, the main components of ventilators on the market are divided into two parts: the main unit and the humidification device. When the ventilator is working, the air is pumped into the humidification device through the motor in the main engine, and then sent to the user's respiratory tract after being humidified by the humidification device. As the air flows through the humidification device, it will carry water vapor to form humid air, and the air with appropriate humidity will enter the patient's airway without causing damage to the fragile respiratory airway and airway mucosa, thus improving the user's use Experience has played a beneficial auxiliary effect on the user's disease treatment.

Existing ventilators have the following disadvantages: the air circuit module of the main part of the ventilator is fixed on the base by hard connection, which vibrates greatly during operation, and the connection structure is easily damaged, especially when it is subjected to external impact during transportation.

Therefore, how to solve the above-mentioned deficiencies in the prior art has become a subject to be studied and solved by the present invention.

Contents of the invention

The purpose of the utility model is to provide a flexible position-limiting mechanism of a ventilator.

For achieving the above object, the technical scheme that the utility model adopts is:

A flexible limiting mechanism of a ventilator, the main body of the ventilator includes a housing and an air circuit module positioned in the housing; the flexible limiting mechanism includes at least one flexible connection structure, and the air circuit module The group and the housing are positioned through the flexible connection structure; and at least one position-limiting structure is also provided between the air circuit module and the housing;

The air inlet of the air path module is connected to an opening on the housing through a flexible buffer tube and communicated with an air path, and the air outlet of the air path module is connected to an opening downstream of the air flow direction through another flexible buffer tube. The components are connected and the gas path is communicated.

The relevant content in the above-mentioned technical scheme is explained as follows:

1. In the above scheme, through the setting of the flexible connection structure, on the one hand, when the blower in the air path module is in operation, its vibration will be absorbed through the flexible connection structure, and the vibration will not be transmitted to the housing, which has significant vibration reduction effect; on the other hand, the gas path module can be allowed to have a certain free displacement space, so as to avoid its hard contact with the shell, and thus avoid damage to the gas path module when the main engine is impacted by external force.

2. In the above solution, there are multiple flexible connection structures, and they are at least evenly distributed around the bottom of the air path module. In addition to the bottom, it can also be arranged on the side or top of the air path module, preferably at the bottom of the air path module. Further, the number of flexible connecting structures may be three or more, so as to form a stable flexible supporting surface.

When there is only one flexible connection structure, a stable connection relationship can be achieved by arranging the flexible connection structure to have a relatively large contact surface in contact with the air path module and to be connected and positioned.

3. In the above solution, the flexible connection structure is a flexible connection column or a flexible connection pad, or other structures with similar functions. The flexible connecting structure is made of known flexible materials, such as rubber, silica gel, sponge and so on.

4. In the above solution, the limiting structure includes a limiting ring arranged on the periphery of each flexible connection structure, and the limiting ring is in the shape of an arc or a semicircle or a circle, corresponding to each other and arranged in a circular shape. on the periphery of the flexible connection structure; the limit ring is fixed on the housing and fits with the flexible connection structure in a gap, which not only leaves a swing space for the flexible connection structure, but also provides a certain amount of vibration for the air circuit module. degrees of freedom, there is a maximum swing amplitude that can be used to limit the flexible connection structure in the horizontal direction.

5. In the above solution, the limiting structure includes a top limiting structure, which includes a top limiting seat and a top limiting column that abut against each other in the horizontal direction, or other structures that can be combined and abut against each other, The two are respectively fixed on the top of the air circuit module and the inner side of the housing.

Through the setting of the top limit structure, it can be used to assist in the upper limit of the air circuit module. With the flexible connection structure and the limit ring, the air circuit module can be limited in the front, rear, up, down, left, and right directions, which can Avoid damage to the air circuit module during transportation, avoid damage to other connection structures inside the host, and also have a drop buffering effect.

6. In the above scheme, one of the top limiting seat and the top limiting column is made of soft material, the other is made of hard material, or both are made of soft material, so that the air path module can be guaranteed to be It can have a certain displacement space, which is beneficial to vibration reduction, and at the same time can achieve a good limit effect.

When the top limit post is made of hard material, a buffer ring can also be set on the top limit post to further improve the vibration reduction effect, and at the same time prolong the service life of the top limit seat and the top limit post .

7. In the above solution, the air inlet of the air circuit module is connected to an opening on the housing through a flexible buffer tube and communicated with an air channel, and the air outlet of the air circuit module is connected to an air channel through another flexible buffer tube. The air inlet of the connected device is sealed and connected with the air path. The design of the two flexible buffer tubes cooperates with the flexible connection structure to further enhance the vibration damping effect.

The flexible buffer tube may be made of flexible materials such as silica gel and rubber.

Working principle and advantages of the present utility model are as follows:

The utility model relates to a flexible limit mechanism for a ventilator, which includes at least one flexible connection structure, and the gas path module and the housing are positioned through the flexible connection structure; Limiting structure: the air inlet of the air path module is connected to an opening on the casing through a flexible buffer tube and communicated with the air path, and the air outlet is connected with an element downstream in the airflow direction through another flexible buffer tube and communicated with the air path.

Compared with the prior art, the gas circuit module of the utility model is flexibly connected with the housing, which can eliminate the vibration generated during work, has a significant vibration reduction effect, and can avoid damage to components; and provides a certain air circuit module The free displacement space avoids hard contact with the shell, and avoids damage to the gas path module when impacted by external forces.

Description of drawings

Accompanying drawing 1 is the internal structure schematic diagram of the ventilator of the utility model embodiment after removing the front and rear covers;

Accompanying drawing 2 is a schematic diagram of the internal structure of the ventilator according to the embodiment of the present invention after removing the air path module and the airway adapter device;

Accompanying drawing 3 is the structural diagram of the top limiting structure of the embodiment of the utility model.

Accompanying drawing 4 is the schematic diagram of A-A sectional structure in Fig. 3;

Accompanying drawing 5 is the structure schematic diagram of the air circuit module of the embodiment of the utility model.

In the attached drawings above: 1. Host; 2. Humidification device; 3. Shell; 4. Air path module; 5. 6. The air inlet of the air path module; Air outlet of the air circuit module; 7. Air inlet of humidification device; 8. Flexible connection structure; 9. Limiting ring; 10. Top limit seat; 11. 12. Top limit column; Buffer ring; 13. Airway transfer device; 14. Flexible buffer tube; 15. Open your mouth.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Embodiment: Referring to accompanying drawings 1 to 5, a flexible limiting mechanism of a ventilator, the ventilator includes a host 1 and a humidification device 2, the host 1 includes a housing 3 and is positioned on the housing An air path module 4 in 3, the air path module 4 has an air inlet 5, communicated with the outside atmosphere; an air outlet 6 of the air path module 4 is connected to an air inlet 7 of the humidification device 2 The roads connect.

The flexible limiting mechanism includes at least one flexible connection structure 8, and the air circuit module 4 and the housing 3 are positioned through the flexible connection structure 8; and, between the air circuit module 4 and the There is also at least one position-limiting structure between the shells 3;

Through the setting of the flexible connection structure 8, on the one hand, when the blower in the air path module 4 is in operation, its vibration will be absorbed by the flexible connection structure 8, and the vibration will not be transmitted to the housing 3, which has significant vibration reduction Effect; on the other hand, the gas path module 4 can be allowed to have a certain free displacement space, so as to avoid its hard contact with the shell 3, and then avoid damage to the gas path module 4 when the main engine 1 is impacted by external force.

Wherein, as shown in FIGS. 1 and 2 , there are three flexible connection structures 8 , which are evenly distributed around the bottom of the air circuit module 4 . In addition to the bottom, it can also be arranged on the side or top of the air path module 4, preferably on the bottom of the air path module 4.

The flexible connection structure 8 is a flexible connection column, and may also be a flexible connection pad or other structures with similar functions. The flexible connection structure 8 is made of known flexible materials, such as rubber, silica gel, sponge and so on.

Wherein, the limiting structure includes a limiting ring 9 arranged around each of the flexible connecting structures 8, and the limiting ring 9 is arc-shaped (or semicircular or circular), corresponding to each other and It is arranged around the periphery of the flexible connection structure 8 in a circular shape; the limit ring 9 is fixed on the housing 3 and fits with the flexible connection structure 8 in a gap, leaving a swing space for the flexible connection structure 8, A certain degree of freedom is provided for the vibration of the gas path module 4, which can be used to limit the maximum swing amplitude of the flexible connecting structure 8 in the horizontal direction.

Wherein, as shown in Figures 3 and 4, the limiting structure also includes a top limiting structure, which includes a top limiting seat 10 and a top limiting column 11 that abut against and cooperate in the horizontal direction, or other combinations And against the matching structure, the two are respectively fixed on the top of the air path module 4 and the inner side of the housing 3 .

Through the setting of the top limit structure, it can be used to assist in the upper limit of the air circuit module 4, and cooperate with the flexible connection structure 8 and the limit ring 9 to realize the control of the air circuit module 4 in the front, rear, up, down, left, and right directions. The position limit can avoid damage to the air circuit module 4 during transportation, can avoid damage to other connection structures inside the host 1, and also has a drop buffering effect.

Wherein, one of the top limiting seat 10 and the top limiting column 11 is made of soft material, the other is made of hard material, or both are made of soft material, so that the air path module 4 can be guaranteed It can not only have a certain displacement space, which is beneficial to vibration reduction, but also can achieve a good position limiting effect.

When the top limit post 11 is made of hard material, a buffer ring 12 can also be sleeved on the top limit post 11 to further enhance the vibration damping effect, and at the same time extend the top limit seat 10 and the top limit The service life of column 11.

Wherein, as shown in FIG. 5 , the air inlet 5 of the air path module 4 is connected to an opening 15 on the housing 3 through a flexible buffer tube 14 and communicated with the air path, and the air outlet of the air path module 4 6 is sealed and connected to the air inlet of an airway adapter device 13 through another flexible buffer tube 14 and communicated with the air path. The design of the two flexible buffer tubes 14 cooperates with the flexible connection structure 8 to further enhance the vibration damping effect. The flexible buffer tube 14 can be made of flexible materials such as silica gel and rubber.

Compared with the prior art, the gas circuit module of the utility model is flexibly connected with the housing, which can eliminate the vibration generated during work, has a significant vibration reduction effect, and can avoid damage to components; and provides a certain air circuit module The free displacement space avoids hard contact with the shell, and avoids damage to the gas path module when impacted by external forces.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to enable those familiar with this technology to understand the content of the present utility model and implement it accordingly, and not to limit the protection scope of the present utility model. All equivalent changes or modifications made according to the spirit of the utility model shall fall within the protection scope of the utility model.

Claims (7)

1. A flexible limiting mechanism of a ventilator, the main frame of the ventilator includes a housing and an air path module positioned in the housing; it is characterized in that: The flexible limit mechanism includes at least one flexible connection structure, and the air circuit module and the housing are positioned through the flexible connection structure; and, between the air circuit module and the housing is also There is at least one limiting structure; The air inlet of the air path module is connected to an opening on the housing through a flexible buffer tube and communicated with an air path, and the air outlet of the air path module is connected to an opening downstream of the air flow direction through another flexible buffer tube. The components are connected and the gas path is communicated. 2 . The flexible limiting mechanism of a ventilator according to claim 1 , wherein there are multiple flexible connection structures, and they are at least uniformly distributed around the bottom of the air circuit module. 3 . 3 . The flexible limiting mechanism of a ventilator according to claim 2 , wherein the number of the flexible connecting structures is greater than or equal to three. 4 . 4. A flexible limiting mechanism for a ventilator according to claim 1, characterized in that: the limiting structure includes a limiting ring arranged around each of the flexible connecting structures, and the limiting ring is fixed on the housing, and clearance fit with the flexible connection structure. 5. A flexible limiting mechanism for a ventilator according to claim 1, wherein the limiting structure comprises a top limiting structure, and the top limiting structure includes a top limiting structure that abuts against and fits in the horizontal direction. The seat and the top limiting column are respectively fixed on the top of the air circuit module and the inner side of the housing. 6 . The flexible limiting mechanism of a ventilator according to claim 1 , wherein the flexible connecting structure is a flexible connecting column or a flexible connecting pad. 7 . 7. The flexible limiting mechanism of a ventilator according to claim 5, wherein one of the top limiting seat and the top limiting column is made of soft material, and the other is made of hard material; When the top limiting post is made of hard material, a buffer ring is sleeved on the top limiting post.