Oxygenator-negative pressure system connector and volatile waste anesthetic gas purification system

Abstract

The utility model relates to the field of medical treatment, and particularly discloses an oxygenator-negative pressure system connector and a volatile waste anesthetic gas purification system, comprising: a negative pressure regulating valve, the gas outlet end of which is used for being connected with a VAC interface and is used for regulating the negative pressure suction force; the air outlet end of the main pipe is connected with the air inlet end of the negative pressure regulating valve; the medical three-way valve is provided with three communicating ports and an adjusting cock used for adjusting the communicating state, the first communicating port of the medical three-way valve is connected with the air inlet end of the main pipe, and a protective cap is arranged at the second communicating port; the gas outlet end of the auxiliary pipe is connected with the third communication port of the medical three-way valve, and the gas inlet end of the auxiliary pipe is used for being connected with the waste gas exhaust end of the membrane type oxygenator. The connector is specially used for connecting a membrane type oxygenator and an operating room negative pressure system, volatile anesthetic waste gas is directly introduced into the existing operating room negative pressure system to be discharged and purified, the structure is simple, the cost is low, and meanwhile, the utility model further provides a volatile anesthetic waste gas purification system using the connector.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical field especially, relate to a kind of oxygenator-negative pressure system connector and volatile anesthetic waste gas purification system. BACKGROUND

[0002] In medical practice, severe cardiovascular disease often needs to be treated by cardiac surgery, and cardiopulmonary bypass (CPB) can be considered as an essential condition and guarantee for current cardiac surgery. The use of volatile anesthetic gas during cardiopulmonary bypass is an effective means to control blood pressure and improve microcirculation perfusion, which brings good prognosis to patients. However, the volatile waste gas discharged from the membrane hollow fiber oxygenator after using volatile anesthetic gas is usually directly discharged into the operating room environment without treatment or effective purification, which poses a certain risk to the health of medical personnel. Especially in some long-term cardiopulmonary bypass surgeries, it will exacerbate the impact on the health of medical personnel.

[0003] To solve the above problems, the skilled person in the art has proposed a variety of structures of volatile anesthetic waste gas purification devices. For example, the patent with publication number CN206881460U proposes a surgical room anesthetic waste gas discharge device, the patent with publication number CN115999355A proposes a surgical room nursing anesthetic waste gas treatment device, and the patent with publication number CN113318576A proposes an anesthetic department anesthetic waste gas extraction device. The content and excessive enumeration of the above-mentioned patents are not described in detail here.

[0004] However, the above-mentioned purification devices are difficult to apply in practice, and most of them are still in the state of talking on paper. The reasons are as follows: first, the volume is large, the cost is high, and the operation is difficult; second, the structure is completely new, and its purification effect is not clear, which is difficult to meet the medical specifications. Even if it is theoretically suitable, it also needs a long conversion process.

[0005] The central negative pressure system is widely used in operating rooms (or rescue rooms, wards, and other medical environments), mainly for suction of sputum, blood, pus, and other internal pollutants. The negative pressure system uses the vacuum pump set of the central suction station to achieve the required negative pressure value of the suction system pipeline. By forming a negative pressure environment, it controls the flow of air from high pressure to low pressure to prevent the spread of pollutants. This system is also equipped with high-efficiency filters to filter out harmful substances such as microorganisms, bacteria, viruses, and other harmful substances in the air. It can discharge waste gas from the isolation area through the pipeline and filter and treat it before discharge to ensure that it will not cause secondary pollution.

[0006] With the development of technology, in most medical institutions, the central negative pressure system has a special interface (usually marked as VAC) in the operating room; a special connector is also needed for connection when performing negative pressure suction and other operations, otherwise the VAC interface will be automatically closed due to the protective setting, such a connector is generally expensive and cannot be universal, and at present there is no special connector between the membrane oxygenator and the VAC interface.

[0007] Therefore, the inventors of the present application realize in medical practice that if a connector between the membrane oxygenator and the operating room negative pressure system is provided, volatile anesthetic waste gas can be directly discharged into the existing operating room negative pressure system for purification. Practical new type content

[0008] Therefore, the inventors of the present application realize in medical practice that if a connector between the membrane oxygenator and the operating room negative pressure system is provided, volatile anesthetic waste gas can be directly discharged into the existing operating room negative pressure system for purification.

[0009] To achieve the above-mentioned purpose, on the one hand, the utility model provides a kind of oxygenator-negative pressure system connector, comprising:

[0010] Negative pressure regulating valve, its outlet end is used to be connected with VAC interface, for adjusting negative pressure suction force;

[0011] Main pipe, its outlet end is connected with the gas inlet end of negative pressure regulating valve;

[0012] Medical three-way valve is equipped with three communication ports and adjusting plug for adjusting communication state, its first communication port is connected with the gas inlet end of main pipe, and the second communication port is equipped with protective cap;

[0013] And auxiliary pipe, its outlet end is connected with the third communication port of medical three-way valve, and its gas inlet end is used to be connected with the waste gas discharge end of membrane oxygenator.

[0014] As a further improvement of the technical scheme of the utility model, the channel diameter of the medical three-way valve is 1.1-2.6 mm.

[0015] As a further improvement of the technical scheme of the utility model, the negative pressure regulating valve is provided with adjusting knob for adjusting negative pressure suction force and pressure display table for displaying negative pressure value.

[0016] As a further improvement of the technical scheme of the utility model, the main pipe and auxiliary pipe are flexible pipe structure, and the pipe diameter is 5.0-12.0 mm.

[0017] As a further improvement of the utility model technical scheme, the outer side wall of the first communicating port is provided with an external thread part, and the main pipe is sleeved on the external thread part.

[0018] As a further improvement of the utility model technical scheme, the outer side wall of the third communicating port is provided with an external thread part, and the auxiliary pipe is sleeved on the external thread part.

[0019] As a further improvement of the utility model technical scheme, the connector further comprises a medical tee pipe, the gas inlet end of the auxiliary pipe is connected to the first communicating end of the medical tee pipe, the second communicating end and the third communicating end of the medical tee pipe are connected to the first branch pipe and the second branch pipe respectively, and the first branch pipe and the second branch pipe are used for being connected to the membrane oxygenator.

[0020] As a further improvement of the utility model technical scheme, the first branch pipe and the second branch pipe are flexible pipe structures and have a pipe diameter of 5.0-12.0 mm.

[0021] As a further improvement of the utility model technical scheme, the first branch pipe and the second branch pipe have different pipe diameters.

[0022] On the other hand, the utility model further provides a volatile anesthetic waste gas purification system, comprising a central negative pressure system, wherein the central negative pressure system is provided with a VAC interface located in an operating room; the volatile anesthetic waste gas purification system also applies the above-mentioned oxygenator-negative pressure system connector.

[0023] Compared with the prior art, the utility model has the following beneficial technical effects:

[0024] The oxygenator-negative pressure system connector provided by the utility model is specially used for connecting the membrane oxygenator and the operating room negative pressure system, can lead the volatile anesthetic gas generated in the extracorporeal circulation out of the outlet of the membrane oxygenator and directly into the existing operating room negative pressure system through the related pipeline for discharge and purification after connection, and finally discharges the volatile anesthetic gas out of the operating room, so that the purpose of purifying waste gas from the source is achieved.

[0025] The volatile anesthetic waste gas purification system provided by the utility model also has the above-mentioned technical effects because of the application of the above-mentioned oxygenator-negative pressure system connector; the applicant uses the connector and the purification system at present, and can treat volatile waste gas for a long time under the condition of relatively low cost, and solves the health and safety hidden danger of medical staff.

[0026] The advantages of the additional aspects of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A first structure schematic view of an oxygenator-negative pressure system connector provided by the utility model is shown in the figure.

[0028] Figure 2 A use state view of the first structure of the oxygenator-negative pressure system connector provided by the utility model is shown in the figure.

[0029] Figure 3 A second structure schematic view of an oxygenator-negative pressure system connector provided by the utility model is shown in the figure.

[0030] Figure 4 A use state view of the second structure of the oxygenator-negative pressure system connector provided by the utility model is shown in the figure.

[0031] Figure 5 A structure schematic view of a volatile anesthetic waste gas purification system provided by the utility model is shown in the figure. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings of the utility model.

[0033] Embodiment one

[0034] As shown in Figure 1 and Figure 2 : the embodiment provides a connector, specifically for the connection between a membrane oxygenator 300 and a VAC interface 200 of a hospital central negative pressure system 100, thus being an oxygenator-negative pressure system connector, the connector at least comprising a negative pressure regulating valve 1, a main pipe 2, a medical tee valve 3 and a secondary pipe 4.

[0035] Specifically, the gas outlet end of the negative pressure regulating valve 1 is used for being connected with the VAC interface 200, which is used for adjusting the negative pressure suction force; the negative pressure regulating valve 1 is provided with an adjusting knob 1a used for adjusting the negative pressure suction force and a pressure display table 1b used for displaying the negative pressure value.

[0036] The gas outlet end of the main pipe 2 is connected with the gas inlet end of the negative pressure regulating valve 1; the main pipe 2 can be a flexible pipe structure and the pipe diameter thereof can be 5.0-12.0mm, for example, preferably a 6.0mm silica gel pipe; the length of the main pipe 2 can be 2.0m, of course, which can be adjusted according to the actual situation.

[0037] The medical three-way valve 3 is provided with three communication ports and an adjusting plug 3d for adjusting the communication state, the first communication port 3a of which is connected with the gas inlet end of the main pipe 2, and the second communication port 3b is provided with a protective cap 3e; the communication relationship between the three communication ports can be adjusted by adjusting the plug 3d, for example, two-by-two communication or all three are communicated; the channel diameter of the medical three-way valve 3 can be 1.1-2.6 mm, preferably 1.5 mm; because the medical three-way valve 3 has a small pipe diameter, it can temporarily shield the automatic closing function of the VAC interface 200, so that the volatile anesthetic gas can be absorbed by negative pressure; the protective cap 3e can be used to control the opening and closing of the second communication port 3b.

[0038] The gas outlet end of the auxiliary pipe 4 is connected with the third communication port 3c of the medical three-way valve 3, and the gas inlet end is used to be connected with the waste gas discharge end of the membrane oxygenator 300; the auxiliary pipe 4 can be a flexible pipe structure and its pipe diameter can be 5.0-12.0 mm, for example, preferably a 6.0 mm silica gel pipe; the length of the auxiliary pipe 4 can be 15 cm, of course, its length can be adjusted according to the actual situation. The auxiliary pipe 4 can be directly connected with the membrane oxygenator 300, at this time, the second communication port 3b needs to be opened during use, so that the second communication port 3b is communicated with the atmosphere, which is beneficial to the natural distribution of suction, preventing the membrane lung from being too large due to negative pressure. The gas inlet end is used to be connected with the waste gas discharge end of the membrane oxygenator 300; the auxiliary pipe 4 can be a flexible pipe structure and its pipe diameter can be 5.0-12.0 mm, for example, preferably a 6.0 mm silica gel pipe; the length of the auxiliary pipe 4 can be 15 cm, of course, its length can be adjusted according to the actual situation. The auxiliary pipe 4 can be directly connected with the membrane oxygenator 300, at this time, the second communication port 3b needs to be opened during use, so that the second communication port 3b is communicated with the atmosphere, which is beneficial to the natural distribution of suction, preventing the membrane lung from being too large due to negative pressure.

[0039] Therefore, the oxygenator-negative pressure system connector provided in the embodiment is specially used for connecting the membrane oxygenator 300 with the operating room negative pressure system, after connection, the volatile anesthetic gas generated in the extracorporeal circulation can be led out from the outlet of the membrane oxygenator 300 and directly introduced into the existing operating room negative pressure system through the related pipeline for discharge and purification, and finally the volatile anesthetic gas is discharged from the operating room, so as to achieve the purpose of purifying the waste gas from the source.

[0040] In the embodiment, the outer side wall of the first communication port 3a is provided with an external thread part, and the main pipe 2 is sleeved on the external thread part; the external thread part makes the main pipe 2 and the outer side wall of the first communication port 3a have a small gap, when the negative pressure suction effect, the gas suction sound can be generated at the connection part (the sound volume can be 40-60 decibels, for example), which can be used to judge the actual negative pressure, and then the operator can judge to adjust the negative pressure suction through the negative pressure adjusting valve 1. Similarly, the outer side wall of the third communication port 3c can also be provided with an external thread part, and the auxiliary pipe 4 is sleeved on the external thread part.

[0041] Embodiment two

[0042] The oxygenator-negative pressure system connector provided in the embodiment is further improved on the basis of the structure and principle shown in embodiment one, therefore, the same structure and principle between the two will not be described here.

[0043] The connector further comprises a medical tee 5 in the embodiment, and the communication ends of the medical tee 5 are always communicated; the gas inlet end of the auxiliary pipe 4 is connected to a first communication end 5a of the medical tee 5, and a second communication end 5b and a third communication end 5c of the medical tee 5 are connected to the first branch pipe 6 and the second branch pipe 7 respectively.

[0044] In use, the second communication port 3b is closed, the first branch pipe 6 and the second branch pipe 7 are selectively connected to the membrane oxygenator 300, and the other branch pipe is directly communicated with the atmosphere; the structure has higher safety, and even if the VAC interface 200 end fails, there is no risk of unsmooth membrane lung exhaust within a certain time.

[0045] In the embodiment, the first branch pipe 6 and the second branch pipe 7 are flexible pipe structures and have a pipe diameter of 5.0-12.0 mm; preferably, the first branch pipe 6 and the second branch pipe 7 have different pipe diameters to adapt to different models of the membrane oxygenator 300, thereby improving the versatility of the connector; for example, the first branch pipe 6 has a pipe diameter of 6.0 mm, and the second branch pipe 7 has a pipe diameter of 10.0 mm.

[0046] Embodiment three

[0047] The embodiment provides a volatile anesthetic waste gas purification system, which comprises a central negative pressure system 100 provided with a VAC interface 200 in an operating room; the volatile anesthetic waste gas purification system applies the oxygenator-negative pressure system connector in the above-mentioned embodiment one and embodiment two, and the specific connection mode and principle are not described herein; of course, the structure and principle of the central negative pressure system 100 are the same as those of the prior art, and the central negative pressure system 100 has the functions of negative pressure suction and waste gas filtration.

[0048] The above-mentioned is only an embodiment of the utility model, and the specific structure and characteristics of the scheme and the like are not described in detail. It should be noted that for those skilled in the art, without departing from the structure of the utility model, a number of modifications and improvements can be made, which should also be regarded as the protection range of the utility model, and these will not affect the effect and practicality of the utility model. The protection range claimed in the application should be subject to the content of the claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. An oxygenator-negative pressure system connector, characterized by, It comprises: a negative pressure regulating valve, the outlet of which is connected to the VAC interface for regulating the negative pressure suction; a main pipe, the inlet of which is connected to the inlet of the negative pressure regulating valve; a medical three-way valve, which has three communication ports and regulating plugs for regulating the communication state, the first communication port of which is connected to the inlet of the main pipe, and the second communication port of which is provided with a protective cap; a secondary pipe, the outlet of which is connected to the third communication port of the medical three-way valve, and the inlet of which is connected to the exhaust end of the membrane oxygenator.

2. The oxygenator-negative pressure system connector according to claim 1, wherein: the channel diameter of the medical three-way valve is 1.1-2.6 mm.

3. The oxygenator-negative pressure system connector according to claim 1, wherein: the negative pressure regulating valve is provided with a regulating knob for regulating the negative pressure suction and a pressure display table for displaying the negative pressure value.

4. The oxygenator-negative pressure system connector according to claim 1, wherein: the main pipe and the secondary pipe are flexible pipes with a pipe diameter of 5.0-12.0 mm.

5. The oxygenator-negative pressure system connector according to claim 1, wherein: the outer side wall of the first communication port is provided with an external thread part, and the main pipe is sleeved on the external thread part.

6. The oxygenator-negative pressure system connector according to claim 1, wherein: the outer side wall of the third communication port is provided with an external thread part, and the secondary pipe is sleeved on the external thread part.

7. The oxygenator-negative pressure system connector according to any one of claims 1-6, wherein: the connector further comprises a medical three-way pipe, the inlet of the secondary pipe is connected to the first communication end of the medical three-way pipe, the second communication end and the third communication end of the medical three-way pipe are connected to the first branch pipe and the second branch pipe respectively, and the first branch pipe and the second branch pipe are used for connecting to the membrane oxygenator.

8. The oxygenator-negative pressure system connector according to claim 7, wherein: the first branch pipe and the second branch pipe are flexible pipes with a pipe diameter of 5.0-12.0 mm.

9. The oxygenator-negative pressure system connector according to claim 7, wherein: the first branch pipe and the second branch pipe have different pipe diameters.

10. A volatile anesthetic waste gas purification system comprising a central negative pressure system provided with a VAC interface located in an operating room; characterized in that: The volatile anesthetic waste gas purification system further comprises the oxygenator-negative pressure system connector according to any one of claims 1-9.

Images