CN217310703U - Closed and open switching device for pet anesthesia loop - Google Patents
Closed and open switching device for pet anesthesia loop Download PDFInfo
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- CN217310703U CN217310703U CN202123394787.9U CN202123394787U CN217310703U CN 217310703 U CN217310703 U CN 217310703U CN 202123394787 U CN202123394787 U CN 202123394787U CN 217310703 U CN217310703 U CN 217310703U
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Abstract
The utility model discloses a closed and open switching device of pet anesthesia loop, relating to the field of medical apparatus and instruments, comprising an anesthesia loop, wherein the anesthesia loop comprises an air inlet, an anesthetic gas inlet and an air outlet, the top of the air inlet is provided with an inspiration valve, and the top of the air outlet is provided with an expiration valve; the anesthesia loop further comprises an inhalation port and an exhalation port which are positioned on the front side of the anesthesia loop; the switch also comprises a switch shell; a slotted hole communicated with the air outlet is also formed below the air outlet; the change-over switch shell is fixedly arranged in a slot hole below the air outlet, a push rod is arranged in the change-over switch shell in a sliding mode, and the top end of the push rod is fixedly connected with the expiration valve. The utility model discloses utilize the flexible mode of push rod to open or close the expiration valve state of air gas outlet, only need pull out or impel the push rod, can realize the closure and the opening in anesthesia return circuit, avoid dead space phenomenon.
Description
Technical Field
The utility model relates to the field of medical equipment, specifically a closed and open auto-change over device in pet anesthesia return circuit.
Background
The pet anesthesia machine plays an important role in the treatment process, and is more and more widely applied. The main components of the existing circulation closed anesthesia loop are an evaporator, a CO2 absorber, a gas storage bag, an air suction corrugated pipe, an exhalation corrugated pipe and the like. The inspiration corrugated pipe with an inspiration valve and the expiration corrugated pipe with an expiration valve are connected with a patient through a three-way pipe. The device is mainly used for maintaining anesthesia after induction anesthesia. When inhaling, the mixed gas enters the body of the patient through the inspiration valve; when the air is exhaled, the air inhaling valve is closed, the air exhaling valve is opened, and the exhaled air reaches the air storage bag through the CO2 absorber. Because the air flow flows in a circumferential one-way, the required air flow is small, the dosage of the liquid medicine is small, and the concentration of the anesthetic gas is easy to control. The whole system is not communicated with the outside, so that the humidity of the respiratory tract is easy to keep, and the body heat loss is less.
The device has the defects that the breathing resistance is large, dead space is easy to occur, the gas flow is insufficient, and the device is not suitable for small animals. A new switching device between closed and open type is proposed to solve this problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a closed and open auto-change over device in pet anesthesia return circuit to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a closed type and open type switching device of a pet anesthesia loop comprises an anesthesia loop, wherein the anesthesia loop comprises an air inlet, an anesthetic gas inlet and an air outlet, the top of the air inlet is provided with an inspiration valve, and the top of the air outlet is provided with an expiration valve; the anesthesia loop further comprises an inhalation port and an exhalation port which are positioned on the front side of the anesthesia loop; the switch also comprises a switch shell; a slotted hole communicated with the air outlet is also formed below the air outlet; the change-over switch shell is fixedly installed in a slot hole below the air outlet, a push rod is installed in the change-over switch shell in a sliding mode, and the top end of the push rod is fixedly connected with the expiration valve.
As a further aspect of the present invention: the change-over switch shell is installed in the slot hole below the air outlet in a threaded mode.
As the utility model discloses further scheme again: an annular groove is formed in the inner wall of the switch shell, and a sealing ring matched with the push rod is embedded in the annular groove.
As a further aspect of the present invention: when the air suction valve is opened, the air inlet, the anesthetic gas inlet and the air suction port are communicated.
As a further aspect of the present invention: when the expiration valve is opened, the air outlet is communicated with the expiration port.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the opening and closing of the anesthesia loop are realized by controlling the opening and closing of the expiration valve at the air outlet. The expiration valve state of the air outlet is opened or closed by utilizing the telescopic mode of the push rod, and the closing and opening of the anesthesia loop can be realized only by pulling out or pushing in the push rod, so that the dead space phenomenon is avoided;
2. the operation is simple, the anesthesia loop can be opened or closed at any time according to the requirement in the work, the structure of the device is simple, the function can be realized on the anesthesia loop, and the integration is facilitated.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is a schematic top view of the embodiment of the present invention.
Fig. 3 is a schematic structural view of the anesthesia loop of the embodiment of the present invention in the direction of a-a when the anesthesia loop is closed.
Fig. 4 is a schematic structural view of the anesthesia loop of the embodiment of the present invention in the direction a-a when the anesthesia loop is open.
Fig. 5 is a schematic view of the structure of the embodiment of the present invention.
Fig. 6 is a schematic perspective view of the embodiment of the present invention in the B-B direction.
Notations for reference numerals: 1-anesthesia loop, 2-air inlet, 3-anesthesia gas inlet, 4-change-over switch shell, 5-push rod, 6-sealing ring, 7-air outlet, 8-expiration valve and 9-inspiration valve.
Detailed Description
The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the drawings or description, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practical applications. The embodiments of the present invention are provided only for illustration, and not for limiting the scope of the present invention. Any obvious and obvious modifications or alterations to the present invention can be made without departing from the spirit and scope of the present invention.
Examples
Referring to fig. 1 to 6, in an embodiment of the present invention, a closed and open switching device for pet anesthesia loop includes an anesthesia loop 1, where the anesthesia loop 1 includes an air inlet 2, an anesthetic gas inlet 3, and an air outlet 7, the top of the air inlet 2 is provided with an air suction flap 9, and the top of the air outlet 7 is provided with an air expiration flap 8; the anesthesia loop 1 further comprises an inhalation port and an exhalation port which are positioned at the front side of the anesthesia loop; when the inspiration valve 9 is opened, the air inlet 2, the anesthetic gas inlet 3 and the inspiration port are communicated, and when the expiration valve 8 is opened, the air outlet 7 and the expiration port are communicated;
also comprises a switch shell 4; a slotted hole communicated with the air outlet 7 is also formed below the air outlet; the change-over switch shell 4 is fixedly arranged in the slot hole below the air outlet 7, preferably, the change-over switch shell 4 is arranged in the slot hole below the air outlet 7 in a threaded manner, so that the change-over switch is convenient to assemble and disassemble; a push rod 5 is arranged in the switch shell 4 in a sliding mode, and the top end of the push rod 5 is fixedly connected with an expiration valve 8.
When the device is used normally, the push rod 5 in the switch shell 4 is pulled downwards, the air outlet 7 is in a closed state at the moment, fresh air enters from the air inlet 2, the air pushes open the air suction valve 9, and anesthetic gas entering from the anesthetic gas inlet 3 is mixed and enters into the small animal body. The expired air of the small animal backs the expiration valve 8 from the air outlet 7 to enter the air storage bag or the CO2 absorber.
When insufficient air enters, the push rod 5 in the switch shell 4 is pushed upwards to jack the 8 exhalation valves, the air outlet 7 and the air inlet 2 are both in an open state, air can enter from the air inlet 2 and the air outlet 7, and mixed with anesthetic gas entering from the anesthetic gas inlet 3 and then enters the small animal body. The state can increase the air inlet flow and avoid dead space caused by non-participation in gas exchange.
Further, an annular groove is formed in the inner wall of the switch shell 4, and a sealing ring 6 matched with the push rod 5 is embedded in the annular groove, so that air tightness is guaranteed, and gas is prevented from flowing from the switch shell 4.
The device realizes the opening and closing of the anesthesia loop 1 by controlling the opening and closing of the expiration valve 8 at the air outlet 7. The state of the expiration valve 8 of the air outlet 7 is opened or closed by utilizing the telescopic mode of the push rod 5, and the closing and opening of the anesthesia loop 1 can be realized only by pulling out or pushing in the push rod 5; the operation is simple, the anesthesia loop can be opened or closed at any time according to the requirement in work, the structure of the device is simple, the function can be realized on the anesthesia loop 1, and the integration is facilitated.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (5)
1. A closed and open switching device for pet anesthesia loops comprises an anesthesia loop (1), wherein the anesthesia loop (1) comprises an air inlet (2), an anesthetic gas inlet (3) and an air outlet (7), the top of the air inlet (2) is provided with an inspiration valve (9), and the top of the air outlet (7) is provided with an expiration valve (8); the anesthesia loop (1) further comprises an inhalation port and an exhalation port positioned at the front side of the anesthesia loop; it is characterized in that the preparation method is characterized in that,
also comprises a switch shell (4); a slotted hole communicated with the air outlet (7) is also formed below the air outlet; change over switch shell (4) fixed mounting has push rod (5) in the slotted hole of air outlet (7) below, slidable mounting has push rod (5) in change over switch shell (4), push rod (5) top and expiration flap (8) fixed connection.
2. The pet anesthesia loop closed-and-open switching device of claim 1, characterized in that the switch housing (4) is screw-mounted in a slotted hole below the air outlet (7).
3. The pet anesthesia loop closed and open switching device according to claim 2, wherein the inner wall of the switch housing (4) is provided with an annular groove, and a sealing ring (6) matched with the push rod (5) is embedded in the annular groove.
4. The pet anesthesia loop closed and open switching device of claim 1, wherein the air inlet (2), the anesthetic gas inlet (3) and the air inlet are in communication when the air suction flap (9) is opened.
5. The pet anesthesia circuit closed and open switching device of claim 4, wherein the expiration flap (8) is opened, and the air outlet (7) and the expiration port are communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123394787.9U CN217310703U (en) | 2021-12-30 | 2021-12-30 | Closed and open switching device for pet anesthesia loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123394787.9U CN217310703U (en) | 2021-12-30 | 2021-12-30 | Closed and open switching device for pet anesthesia loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217310703U true CN217310703U (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123394787.9U Active CN217310703U (en) | 2021-12-30 | 2021-12-30 | Closed and open switching device for pet anesthesia loop |
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| Country | Link |
|---|---|
| CN (1) | CN217310703U (en) |
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2021
- 2021-12-30 CN CN202123394787.9U patent/CN217310703U/en active Active
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