CN111603655A

CN111603655A - Double-positive-pressure adjusting device for surgical breathing equipment

Info

Publication number: CN111603655A
Application number: CN202010499764.5A
Authority: CN
Inventors: 朱红波; 王智刚; 张霞明
Original assignee: First Peoples Hospital of Changzhou
Current assignee: First Peoples Hospital of Changzhou
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2020-09-01

Abstract

The invention relates to the technical field of mechanical devices, in particular to a double positive pressure adjusting device for surgical breathing equipment, which comprises a first connecting pipe, wherein an annular step surface is arranged in one end of the first connecting pipe, an annular groove is arranged on the inner side of the first connecting pipe, an adjusting ring is embedded in the annular groove, the adjusting ring is attached to the side wall, protruding relative to the annular step surface, of the end part of the first connecting pipe, and a first circulation channel and a second circulation channel are correspondingly arranged on the adjusting ring and the side wall; the mounting ring is mounted at one end of the first connecting pipe, the adjusting ring is limited in the annular groove after connection, at least two supports connected with the two ends of the inner wall are arranged inside the mounting ring, the supports are arranged in an intersecting mode, a filter screen is arranged at the position of a gap, a foldable and closed fan-shaped cover body is arranged at the top of the mounting ring, and opening and closing of the fan-shaped cover body are achieved in the rotating process of the adjusting ring. According to the invention, two different positive pressure values are effectively provided, the gas inclusion is strong, the gas flow can be effectively filtered, and the safety is extremely high.

Description

Double-positive-pressure adjusting device for surgical breathing equipment

Technical Field

The invention relates to the technical field of mechanical devices, in particular to a double positive pressure adjusting device for surgical breathing equipment.

Background

In modern clinical medicine, a ventilator has been widely used in respiratory failure due to various reasons, anesthesia and breathing management during major surgery, respiratory support therapy and emergency resuscitation as an effective means for manually replacing the function of spontaneous ventilation, and has a very important position in the modern medical field.

Continuous positive airway pressure is a main mechanical ventilation mode of a breathing machine, and particularly, continuous positive airflow is given to a gas channel in the inspiration process, and certain resistance is given to the gas channel in the expiration process, so that two different positive pressure values higher than the atmospheric pressure are obtained in the gas channel in the inspiration and expiration processes. At present, the control degree of difficulty to above-mentioned two kinds of positive pressure values is great, exists among the prior art to realize the method of control through installing flow control valve, and through the adjustment of valve body aperture, the accessible is adjusted gaseous different flow area's mode and is obtained different positive pressure values, but requires higher to gaseous cleanliness under this kind of mode, and the flow control valve can make work effect and bring the risk of using after blockking up.

In view of the above-mentioned drawbacks, the inventor of the present invention has made extensive practical experience and professional knowledge for many years in designing and manufacturing such products, and has actively studied and innovated in cooperation with the application of the theory, in order to create a dual positive pressure adjustment device for surgical breathing equipment, so as to make it more practical. After continuous research and design and repeated trial production and improvement, the invention with practical value is finally created.

Disclosure of Invention

The main object of the present invention is to provide a double positive pressure regulating device for a surgical breathing apparatus, which effectively solves the problems indicated in the background art.

In order to achieve the purpose, the invention adopts the technical scheme that:

a dual positive pressure adjustment device for a surgical breathing apparatus, comprising:

the first connecting pipe is internally provided with an annular step surface at one end, an annular groove is arranged on the inner side of the annular step surface, an adjusting ring is embedded in the annular groove, the adjusting ring is attached to the side wall, protruding relative to the annular step surface, of the end part of the first connecting pipe, and a first circulation channel and a second circulation channel are correspondingly arranged on the adjusting ring and the side wall;

the collar, install in first connecting pipe one end, and will after connecting the adjustable ring restriction is in the annular groove, the inside two supports of connecting the inner wall both ends that set up of collar, each the support is crossing to be set up, and crossing back with space department between the collar is provided with the filter screen, the filter screen top is provided with collapsible closed fan-shaped cover body, fan-shaped cover body one side is fixed in on the support, the opposite side is connected with the dwang, the dwang with the axis of collar rotates to be connected, and the other end inserts in the first circulation passageway adjustable ring pivoted in-process realizes opening and closing of the fan-shaped cover body.

Furthermore, the support is arch-shaped, the installation ring inner side is provided with the direction domatic that suits with the camber of support, the direction domatic with be provided with the cell body between the adjustable ring.

Further, first circulation passageway be for the inside indent of adjustable ring edge, the open end of recess passes through the collar is closed, dwang one end is in the recess with the cell body laminating sets up.

Furthermore, the periphery of the adjusting ring is provided with a protruding structure, the protruding structure penetrates through the side wall and drives the adjusting ring to rotate along the strip-shaped hole positions arranged on the side wall.

Furthermore, one of the rotating rods is provided with a protruding structure at the end, the protruding structure penetrates through the side wall and drives the adjusting ring to rotate along the strip-shaped hole positions arranged on the side wall.

Further, the first flow channel and the second flow channel are arranged in an equal contour.

Furthermore, a sealing ring is arranged on the binding surface of the first connecting pipe and the mounting ring.

Further, the fan-shaped cover body has an arch degree corresponding to the support.

Further, the height of the first flow channel is equal to the height of the end of the turning lever.

Further, the other side of the mounting ring relative to the first connecting pipe is provided with a second filter screen.

Through the technical scheme, the invention has the beneficial effects that:

in the inspiration process, the fan-shaped cover body is retracted by rotating the adjusting ring, the flow area of the filter screen is displayed to be the maximum, at the moment, the first flow passage and the second flow passage are arranged in a staggered mode, gas leakage cannot occur, the positive pressure gas flow for continuous inspiration is larger than the inspiration gas flow, the inspiration of a patient is labor-saving, the gas exchange area is increased, the air passage and alveolus are prevented from collapsing, and the gas flow is filtered gas flow and is clean and safe.

In expiration process, rotate the adjustable ring and make the fan-shaped cover body open, and reduce the flow area of filter screen, after removing to target in place, first circulation passageway and second circulation passageway correspond the setting and form the passageway that supplies the gas circulation, provide less malleation value owing to flow area's reduction and gaseous the revealing this moment to the impurity of collecting again in-process can flow through the runner between first circulation passageway and the second circulation passageway.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a dual positive pressure regulator for a surgical breathing apparatus;

FIG. 2 is a schematic view of the installation of the first connecting tube and adjusting ring;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic structural view of the mounting ring (omitting the filter screen);

FIG. 5 is a schematic view of the installation of the adjustment ring and mounting ring (with the screen omitted);

FIG. 6 is a schematic view of the adjusting ring;

FIG. 7 is an enlarged view of a portion of FIG. 1 at B;

FIG. 8 is a schematic view of a rotary form of the adjusting ring (omitting the filtering net);

FIG. 9 is a schematic view of another rotation of the adjustment ring (shown in a close-up view at C in FIG. 5);

reference numerals: the device comprises a first connecting pipe 1, an annular step surface 11, a side wall 12, a second flow channel 12a, a strip-shaped hole site 12b, an adjusting ring 2, a first flow channel 21, a protruding structure 22, a mounting ring 3, a support 31, a guide slope 32, a filter screen 33, a fan-shaped cover body 34, a rotating rod 35 and a groove body 36.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. This embodiment is written in a progressive manner.

1-5, a dual positive pressure regulator for a surgical breathing apparatus, comprising: an annular step surface 11 is arranged in one end of the first connecting pipe 1, an annular groove is arranged on the inner side of the annular step surface 11, an adjusting ring 2 is embedded in the annular groove, the adjusting ring 2 is attached to a side wall 12 which is arranged at the end part of the first connecting pipe 1 and protrudes relative to the annular step surface 11, and a first circulation channel 21 and a second circulation channel 12a are correspondingly arranged on the adjusting ring 2 and the side wall 12; installing ring 3, install in 1 one end of first connecting pipe, and limit adjusting ring 2 in the annular groove after connecting, installing ring 3 is inside to set up two at least supports 31 of connecting the inner wall both ends, each support 31 intersects the setting, and the space department between crossing back and installing ring 3 is provided with filter screen 33, filter screen 33 top is provided with collapsible closed fan-shaped cover body 34, fan-shaped cover body 34 one side is fixed in on support 31, the opposite side is connected with dwang 35, dwang 35 is connected with the axis rotation of installing ring 3, the other end inserts in first circulation passageway 21, at adjusting ring 2 pivoted in-process, realize opening and closing of fan-shaped cover body 34.

As shown in fig. 1 to 5, the dual positive pressure regulator for surgical breathing apparatus of the present invention is installed in the airway during operation, and the air flow will flow through the pores of the filter net 33 after reaching the surface of the filter net 33, and the impurities therein are filtered by the filter net 33.

In the inspiration process, the fan-shaped cover body 34 is retracted by rotating the adjusting ring 2, the flow area of the filter screen 33 is displayed to be the maximum, at the moment, the first flow passage 21 and the second flow passage 12a are arranged in a staggered mode, and gas leakage cannot occur.

In the exhalation process, rotate adjustable ring 2 and make fan-shaped cover 34 open, and reduce the flow area of filter screen 33, after removing to target in place, first circulation passageway 21 and second circulation passageway 12a correspond the setting and form the passageway that supplies the gas circulation, provide less positive pressure value owing to the reduction of flow area and gaseous leaking this moment to the impurity that collects in this process again can flow out through the runner between first circulation passageway 21 and second circulation passageway 12 a.

In the invention, the filter screen 33 is separately arranged, so that the collision stability of the filter screen under the impact of air flow can be ensured, wherein in the rotating process of the adjusting ring 2, synchronous opening and closing of the fan-shaped cover bodies 34 can be synchronously realized, the action amplitude is consistent, and the air flow is more uniform.

The brackets 31 referred to in the present invention may be of an integral or assembled segmented structure, wherein the segments are preferably selected from middle segments, thereby facilitating the intersecting arrangement of the brackets 31.

Referring to fig. 4 and 5, the bracket 31 is arched, a guide slope 32 corresponding to the arch degree of the bracket 31 is arranged on the inner side of the mounting ring 3, and a groove 36 is arranged between the guide slope 32 and the adjusting ring 2. In the using process, the side of the bracket 31 protruding due to the camber is a part facing the air flow, and then reaches the groove body 36 along the camber and the guide slope 32 under the action of the air flow to be collected, so that the automatic cleaning of the filtered impurities can be conveniently realized.

As shown in fig. 6 and 7, the first flow channel 21 is a groove inwardly indented with respect to the edge of the adjusting ring 2, the open end of the groove is closed by the mounting ring 3, and one end of the rotating rod 35 is disposed in the groove to be attached to the groove 36. This way is on the one hand more convenient to process, and on the other hand makes the dwang 35 can stir and lead the gaseous impurity that collects in the cell body 36 in the pivoted in-process, makes it flow out from first flow path 21 and second flow path 12a more concentrated.

Two embodiments for the rotation of the adjustment ring 2 are provided below:

implementation mode one

As shown in fig. 8, the adjusting ring 2 is provided with a protruding structure 22 at the periphery thereof, the protruding structure 22 penetrates through the side wall 12 and drives the adjusting ring 2 to rotate along a strip-shaped hole 12b formed on the side wall 12. Under this kind of structure situation, protruding structure 22 accessible any connected mode establishes with adjustable ring 2 and is connected, such as modes such as threaded connection, bonding or welding, and drives protruding structure 22 pivoted power and also can rationally select among the prior art, and the accessible cylinder isotructure realizes quick rotation, also can drive the rotation of structures such as connecting rod through the motor and realize slow rotation, can realize the rotation of variable speed even to can be close true respiratory process more.

Second embodiment

As shown in fig. 9, the end of one of the rotating rods 35 is provided with a protruding structure 22, and the protruding structure 22 penetrates through the side wall 12 and drives the adjusting ring 2 to rotate along a strip-shaped hole 12b formed on the side wall 12. Similarly, in this structure situation, the protruding structure 22 can be connected to the rotating rod 35 by any connection method, such as a threaded connection, an adhesive connection, or a welding method, and the power driving the protruding structure 22 to rotate can also be used to realize a fast rotation by using a cylinder or the like, or to realize a slow rotation by using a motor to drive a connecting rod or the like to rotate.

As a preferred aspect of the above embodiment, the first flow channel 21 and the second flow channel 12a are arranged in a contour manner, so that after the two channels are overlapped, impurities can be cleaned by airflow, and the problem that the impurities are blocked in the air channel due to the difference of the flow areas of the two channels or the impurities are difficult to clean due to the position out of the air channel where the airflow cannot reach is avoided.

As a preferable example of the above embodiment, a seal ring is provided on the contact surface of the first connecting pipe 1 and the mount ring 3. Thereby realize sealed effect, the two makes sealed simple and easy because of natural binding face, and the extrusion mode makes sealed more reliable.

Preferably, the cover 34 has a curvature adapted to the support 31, so as to provide a guiding effect to the air flow after it is closed, thereby better removing the impurities. In addition, the height of the first flow channel 21 is equal to the height of the end part of the rotating rod 35, so that better guiding can be obtained due to the equal height of the rotating rod 35 and the rotating rod in the moving process of the rotating rod in the first flow channel 21, and the working effectiveness is ensured.

As a preference of the above embodiment, the other side of the mounting ring 3 relative to the first connecting pipe 1 is provided with a second filter screen, and the filter screen is arranged on the layer, which is significant in realizing secondary filtration and increasing the cleanliness of gas on the one hand, and on the other hand, can avoid blocking drifting parts once the problem of mounting failure of the parts exists in the use process of the above structure, and avoid danger.

In the specific use process of the present invention, the second flow channel 12a may be internally communicated with an impurity collecting device, which may not have any collecting power, because the amount of impurities is small, and the device may have a simple structure such as a dust bag, but it is necessary to ensure the gas to be communicated, and in addition, the sealing at the local position and the like can be solved by the prior art.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A dual positive pressure adjustment device for a surgical breathing apparatus, comprising:

the connecting structure comprises a first connecting pipe (1), wherein an annular step surface (11) is arranged in one end of the first connecting pipe, an annular groove is formed in the inner side of the annular step surface (11), an adjusting ring (2) is embedded in the annular groove, the adjusting ring (2) is attached to a side wall (12) which is arranged at the end part of the first connecting pipe (1) and protrudes relative to the annular step surface (11), and a first circulation channel (21) and a second circulation channel (12a) are correspondingly formed in the adjusting ring (2) and the side wall (12);

a mounting ring (3) mounted at one end of the first connecting tube (1) and limiting the adjusting ring (2) in the annular groove after connection, at least two brackets (31) connected with the two ends of the inner wall are arranged in the mounting ring (3), the brackets (31) are arranged in an intersecting way, and a filter screen (33) is arranged at the gap between the crossed part and the mounting ring (3), the top of the filter screen (33) is provided with a foldable and closed fan-shaped cover body (34), one side of the fan-shaped cover body (34) is fixed on the bracket (31), the other side is connected with a rotating rod (35), the rotating rod (35) is rotationally connected with the axis of the mounting ring (3), the other end of the rotating rod is inserted into the first flow channel (21), during the rotation of the adjusting ring (2), the sector-shaped covers (34) are opened and closed.

2. The double positive pressure adjustment device for surgical breathing apparatus according to claim 1, wherein the bracket (31) is arched, a guide slope (32) adapted to the arch degree of the bracket (31) is arranged inside the mounting ring (3), and a groove (36) is arranged between the guide slope (32) and the adjusting ring (2).

3. The double positive pressure regulating device for surgical breathing apparatus according to claim 2, wherein the first flow channel (21) is a groove that is recessed inward with respect to the edge of the regulating ring (2), the open end of the groove is closed by the mounting ring (3), and one end of the rotating rod (35) is disposed in the groove in abutment with the groove body (36).

4. The dual positive pressure adjustment device for surgical breathing apparatus according to claim 1, wherein the adjustment ring (2) is provided with a protruding structure (22) at the periphery, the protruding structure (22) penetrates through the side wall (12) and drives the adjustment ring (2) to rotate along a strip-shaped hole (12b) provided on the side wall (12).

5. The dual positive pressure adjustment device for surgical breathing apparatus according to claim 1, wherein a protruding structure (22) is provided at an end of one of the rotating levers (35), the protruding structure (22) penetrates through the side wall (12) and drives the adjusting ring (2) to rotate along a strip-shaped hole (12b) provided on the side wall (12).

6. The dual positive pressure regulator for surgical breathing apparatus according to claim 3, wherein the first (21) and second (12a) flow channels are equi-contoured.

7. The double positive pressure adjustment device for surgical breathing apparatus according to claim 1, wherein the abutting surfaces of the first connecting tube (1) and the mounting ring (3) are provided with sealing rings.

8. The dual positive pressure adjustment device for surgical breathing apparatus according to claim 2, wherein the fan-shaped hood (34) has an arc that is adapted to the cradle (31).

9. The double positive pressure adjustment device for surgical breathing apparatus according to claim 1, characterized in that the first flow channel (21) has a height equal to the height of the end of the swivelling lever (35).

10. The double positive pressure regulating device for surgical breathing apparatus according to any of claims 1-9, characterized in that the mounting ring (3) is provided with a second filter screen on the other side with respect to the first connecting tube (1).