CN114587634A - A carbon dioxide operative field filling device used in pediatric cardiac surgery - Google Patents

Abstract

The invention discloses a carbon dioxide surgical field filling device applied to children's cardiac surgery, comprising a diffusion head, a first connecting tube, a filter, an automatic telescopic tube reel and a gas flow regulating mechanism, the diffusion head and one end of the first connecting tube Connection, the other end of the first connecting pipe is connected with the air outlet end of the filter, the air inlet end of the filter is connected with the air outlet pipe of the automatic telescopic reel, the air inlet pipe of the automatic telescopic reel is connected with the air outlet end of the gas flow regulating mechanism connect. The technical effects achieved are: simple structure, convenient disassembly and assembly, can easily adjust the flow of carbon dioxide gas, and ensure the effect of ventilation and filling; can ensure the purity of the gas to prevent pollution or infection; can easily adjust the pipeline according to the site environment. The length is convenient for the storage and arrangement of the pipeline, and the use is more convenient; it is suitable for use in children's cardiac surgery, which makes the filling of carbon dioxide more sufficient, and can effectively reduce the occurrence of air embolism and subcutaneous emphysema.

Description

A carbon dioxide operative field filling device used in pediatric cardiac surgery

technical field

The invention relates to the technical field of cardiac surgery, in particular to a carbon dioxide surgical field filling device used in children's cardiac surgery.

Background technique

During cardiopulmonary bypass in cardiac surgery, a large amount of air can be pumped into the circulation at the initial stage of re-beating of the heart. Gas entering the human circulation and the extracorporeal circulation pipeline can cause gas embolism, and in severe cases, it can cause central or peripheral organ dysfunction. At present, the main means of exhausting include experiential means such as low head position before circulatory recovery, perfusion needle sucking back, finger massage on the bottom and surface of the heart, water pumping inside the heart, and lung expansion; considering that the effect of exhausting through surgical means is not exact, clinical There is an urgent need to find a gas with better solubility and higher safety to replace the air covering the surgical area to reduce the formation and harm of air embolism.

Carbon dioxide, gaseous at room temperature, colorless, odorless, easy to obtain, ideal for exhaust technology; molecular weight is 44, density is higher than air, and can be filled by gravity; solubility in blood and tissue is 25 times that of air Above, the formation of air embolism can also be quickly dissolved. Studies have shown that filling carbon dioxide into the operation area can reduce the bubbles in the heart and achieve the effect of exhausting. Some heart centers in China have applied this technology to ventilate the surgical field, and achieved certain results.

However, the existing CO2 exhaust technology has the following problems and shortcomings:

1. At present, the application of carbon dioxide field filling technology in China is mainly in the field of adults. There is no uniform carbon dioxide exhaust pipe. All centers use oxygen pipes, urine pipes and other pipes. The connection methods of each center are different. , and the connection method is complicated;

3. The operative field pipeline of pediatric cardiac surgery is complicated, and compared with adults, children have more limited operating space. In order to effectively remove the air in the operative field and reduce the occurrence of air embolism by filling the operative field with carbon dioxide, it is urgent to design A carbon dioxide surgical field filling device suitable for children is used in the field of children's cardiac surgery.

SUMMARY OF THE INVENTION

To this end, the present invention provides a carbon dioxide surgical field filling device for pediatric cardiac surgery to solve the above problems in the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

According to a first aspect of the present invention, a carbon dioxide surgical field filling device applied to pediatric cardiac surgery includes a diffusion head, a first connecting tube, a filter, an automatic retractable tube reel and a gas flow adjustment mechanism, the diffusion head and One end of the first connection pipe is connected, the other end of the first connection pipe is connected with the air outlet end of the filter, and the air inlet end of the filter is connected with the air outlet pipe of the automatic telescopic reel, The air inlet pipe of the automatic telescopic reel is connected to the air outlet end of the gas flow regulating mechanism.

Further, the diffusion head includes a connection end and a diffusion end, one end of the connection end is connected to the end of the first connection pipe facing away from the filter, the other end of the connection end is connected to the diffusion end, the The diffusion end is provided with a plurality of diffusion holes, and the diffusion holes communicate with the cavity inside the diffusion end.

Further, the diffusing holes are arranged on the side walls of the diffusing ends, the axis of each diffusing hole forms an included angle of 30° to 60° with the axis of the diffusing end, and the axis of the connecting end and the The axis of the diffuser end forms an included angle of 90° to 120°.

Further, the diffusion end is one of a prismatic shape, a circular truncated shape or a cylindrical shape.

Further, the inner diameter of one end of the first connecting pipe connected to the filter is larger than the inner diameter of the end of the first connecting pipe connected to the diffusion head.

Further, the gas flow regulating mechanism includes a pressure reducing valve, the outlet end of the pressure reducing valve is connected with the air inlet pipe of the automatic telescopic hose reel, and a pressure gauge is provided on the pressure reducing valve.

Further, the gas flow adjustment mechanism further includes a flowmeter, the inlet end of the flowmeter is connected with the outlet end of the pressure reducing valve, and the outlet end of the flowmeter is connected with the inlet end of the automatic telescopic hose reel. The trachea is connected, and the flow meter is provided with a flow regulating valve.

Further, it also includes a second connection pipe and an adapter, the adapter is detachably connected to one end of the second connection pipe, and the end of the second connection pipe away from the adapter is adjusted to the gas flow The intake end of the mechanism is connected.

Further, the filter is provided with a multi-layer filter structure.

Further, the filtering structure includes a dust removal screen and a disinfection and sterilization screen, and the dust removal screen and the disinfection and sterilization screen are sequentially arranged along the air inlet end to the air outlet end of the filter.

The invention has the following advantages: the diffusion head is connected with one end of the first connecting pipe, the other end of the first connecting pipe is connected with the air outlet end of the filter, the air inlet end of the filter is connected with the air outlet pipe of the automatic telescopic reel, and the automatic The air intake pipe of the telescopic reel is connected to the air outlet end of the gas flow regulating mechanism, the overall structure is simple, and the disassembly and assembly are convenient. The ventilation and filling effect of the surgical field; by setting the filter, the carbon dioxide gas can be filtered to ensure the purity of the gas and prevent pollution or infection; the length of the pipeline can be easily adjusted according to the on-site environment through the automatic telescopic tube reel, and at the same time It is convenient to store, easy to store and organize the pipeline, and more convenient to use; the whole device is suitable for children's cardiac surgery, which makes the filling of carbon dioxide in the children's cardiac surgery field more sufficient, achieves the ideal exhaust filling effect, and can effectively reduce air embolism and subcutaneous emphysema.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that are required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other implementation drawings can also be obtained from the extensions of the drawings provided without creative efforts.

The structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the contents disclosed in the specification, so as to be understood and read by those who are familiar with the technology, and are not used to limit the conditions for the implementation of the present invention, so there is no technical The substantive meaning, any modification of the structure, the change of the proportional relationship or the adjustment of the size, without affecting the effect that the present invention can produce and the purpose that can be achieved, should still fall within the technical content disclosed in the present invention. within the scope of coverage.

FIG. 1 is a schematic diagram of the overall structure of a carbon dioxide surgical field filling device used in pediatric cardiac surgery according to some embodiments of the present invention.

2 is a schematic structural diagram of a diffusion head of a carbon dioxide surgical field filling device used in pediatric cardiac surgery according to some embodiments of the present invention.

FIG. 3 is a schematic diagram of a use state of a diffusion head of a carbon dioxide surgical field filling device used in pediatric cardiac surgery according to some embodiments of the present invention.

In the figure: 1. Diffusion head, 2. The first connecting pipe, 3. The second connecting pipe, 4. Filter, 5. Automatic telescopic reel, 6. Inlet pipe, 7. Outlet pipe, 8. Flow meter, 9. Pressure reducing valve, 10, pressure gauge, 11, adapter, 12, connecting end, 13, diffusion end, 14, diffusion hole, 15, surgical field, 16, gas flow direction, 17, flow regulating valve.

Detailed ways

The embodiments of the present invention are described below by specific specific embodiments. Those who are familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the present invention. , not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in FIG. 1 to FIG. 3 , a carbon dioxide surgical field filling device applied to pediatric cardiac surgery in the first aspect of the present invention includes a diffusion head 1 , a first connecting tube 2 , a filter 4 , and an automatic retractable roll Tube 5 and gas flow adjustment mechanism, the diffuser head 1 is connected to one end of the first connecting tube 2, the other end of the first connecting tube 2 is connected to the outlet end of the filter 4, and the inlet end of the filter 4 is connected to the automatic telescopic coil The air outlet pipe 7 of the hose reel 5 is connected, and the air inlet pipe 6 of the automatic telescopic hose reel 5 is connected with the air outlet end of the gas flow adjustment mechanism.

In the above embodiment, it should be noted that the air inlet pipe 6 and the air outlet pipe 7 are the two ends of a whole connecting pipe respectively, and the total length of the connecting pipe in the automatic telescopic reel 5 is 5m to 10m; The air inlet end of the adjusting mechanism is connected with the air supply pipeline or the air supply device.

Further, dismantle and discard the first connecting pipe 2 and the diffusion head 1 after each use. In the next use, after replacing the new first connecting pipe 2 and the diffusing head 1, the filter can be used again. 4 It can be replaced before each use or periodically according to the needs of use.

The technical effects achieved by the above embodiments are: the overall structure is simple, the disassembly and assembly are convenient, and at the same time, according to the use requirements, the output flow rate of carbon dioxide gas of the entire device can be conveniently adjusted through the gas flow adjustment mechanism, so as to ensure the ventilation and filling effect of the surgical field; By setting the filter 4, the carbon dioxide gas can be filtered to ensure the purity of the gas and prevent pollution or infection; the length of the pipeline can be conveniently adjusted according to the on-site environment through the automatic retractable hose reel 5, and at the same time, it is convenient to store and facilitate the pipeline. The whole device is suitable for children's cardiac surgery, which makes the filling of carbon dioxide in the children's cardiac surgery field more sufficient, achieves the ideal exhaust filling effect, and can effectively reduce the occurrence of air embolism and subcutaneous emphysema .

Optionally, as shown in FIGS. 1 to 3 , in some embodiments, the diffusion head 1 includes a connection end 12 and a diffusion end 13 , and one end of the connection end 12 is connected to the end of the first connection pipe 2 facing away from the filter 4 , The other end of the connection end 12 is connected to the diffusion end 13 , and the diffusion end 13 is provided with a plurality of diffusion holes 14 , and the diffusion holes 14 communicate with the cavity inside the diffusion end 13 .

In the above-mentioned optional embodiment, it should be noted that the plurality of diffusion holes 14 are evenly arranged on the side wall of the diffusion end 13, and the diffusion holes 14 may be circular holes, rectangular holes, triangular holes, polygonal holes, etc. In this shape, the axis of the diffuser hole 14 and the axis of the diffuser end 13 form an acute angle.

Further, the inner diameter of one end of the first connection pipe 2 connected to the filter 4 is larger than the inner diameter of the end of the first connection pipe 2 connected to the diffusion head 1 .

Further, the inner diameter of the end of the first connecting pipe 2 connected to the diffuser head 1 is preferably set to two-thirds to one-third of the inner diameter of the end of the first connecting pipe 2 that is connected to the filter 4 .

The beneficial effects of the above-mentioned optional embodiments are: the axis of the diffusion hole 14 is at an acute angle with the axis of the diffusion end 13, and carbon dioxide gas can be blown into the surgical field at an oblique downward angle through the diffusion hole 14 during use, and the exhaust filling effect Good; the inner diameter of the end of the first connecting pipe 2 connected to the filter 4 is larger than the inner diameter of the end of the first connecting pipe 2 connected to the diffuser 1, and the venturi effect can be used to accelerate the blowing of the gas, and the exhaust gas filling effect is better.

Optionally, as shown in FIGS. 1 to 3 , in some embodiments, the diffusion holes 14 are provided on the sidewall of the diffusion end 13 , and the axis of each diffusion hole 14 is 30° to 30° to the axis of the diffusion end 13 . At an included angle of 60°, the axis of the connection end 12 and the axis of the diffuser end 13 form an included angle of 90° to 120°.

In the above optional embodiment, it should be noted that the included angle between the axis of each diffusion hole 14 and the axis of the diffusion end 13 is preferably set to 30° to 45°, and the axis of the connection end 12 and the diffusion end are preferably set at 30° to 45°. The angle between the axes of 13 is preferably set to 100° to 120°.

Further, the diffusion end 13 is one of a pyramid shape, a truncated cone shape or a cylindrical shape.

Further, the diffusing end 13 is preferably set as a flat pyramid shape, the top of the diffusing end 13 is connected with the connecting end 12 , and the inner cavity of the diffusing end 13 communicates with the first connecting pipe 2 through the connecting end 12 .

The beneficial effects of the above-mentioned optional embodiments are: the diffusion holes 14 are arranged on the side walls of the diffusion end 13, the axis of each diffusion hole 14 forms an included angle of 30° to 60° with the axis of the diffusion end 13, and the connecting end The axis of 12 and the axis of the diffusion end 13 form an included angle of 90° to 120°. When in use, the diffusion head 1 can better fit the skin edge of the surgical area, which is easier to position and place, and is not easy to block the surgical area. 13 can be properly extended into the area of the operative field 15, so that the gas flow direction 16 in the area of the operative field 15 is more stable, and it is convenient to empty the air in the area of the operative field 15 and fill with carbon dioxide gas.

Optionally, as shown in FIG. 1 to FIG. 3 , in some embodiments, the gas flow regulating mechanism includes a pressure reducing valve 9, and the gas outlet end of the pressure reducing valve 9 is connected to the air inlet pipe 6 of the automatic telescopic reel 5, reducing the pressure. The pressure valve 9 is provided with a pressure gauge 10 .

In the above-mentioned optional embodiment, it should be noted that the gas flow adjustment mechanism further includes a flowmeter 8, the inlet end of the flowmeter 8 is connected to the outlet end of the pressure reducing valve 9, and the outlet end of the flowmeter 8 is connected to the automatic telescopic The intake pipe 6 of the hose reel 5 is connected, and the flow meter 8 is provided with a flow regulating valve 17 .

Further, the pressure gauge 10 adopts a digital type or a pointer indicating type.

The beneficial effects of the above-mentioned optional embodiments are: the pressure reducing valve 9, the pressure gauge 10, the flow meter 8 and the flow regulating valve 17 are used in cooperation with each other, which can flexibly and conveniently adjust the gas output pressure and flow, so as to better exhaust the gas. and padding.

Optionally, as shown in FIGS. 1 to 3 , in some embodiments, a second connecting pipe 3 and an adapter 11 are further included, and the adapter 11 is detachably connected to one end of the second connecting pipe 3 , and the second connection The end of the pipe 3 facing away from the adapter 11 is connected to the intake end of the gas flow regulating mechanism.

In the above-mentioned optional embodiment, it should be noted that the adapter 11 has a variety of different models and specifications, and can be applied to the connection of gas supply pipeline joints of various specifications.

The beneficial effects of the above-mentioned optional embodiments are: the adapter 11 is detachably connected to one end of the second connecting pipe 3, and the end of the second connecting pipe 3 away from the adapter 11 is connected to the air inlet end of the gas flow regulating mechanism, using At the same time, different adapters 11 can be replaced according to different gas supply pipeline joints for connection, which can conveniently realize the connection of the entire device and the gas supply pipeline.

Optionally, as shown in FIGS. 1 to 3 , in some embodiments, the filter 4 is provided with a multi-layer filter structure.

In the above-mentioned optional embodiment, it should be noted that the filter structure includes a dust removal net and a disinfection and sterilization net. The dust removal net and the disinfection and sterilization net are preferably multi-layered. Set up in order to the outlet end.

The beneficial effects of the above-mentioned optional embodiment are: the filter 4 is provided with a multi-layer filtering structure, the filtering effect is better, the particulate matter in the gas can be effectively filtered, and the gas can be sterilized and sterilized to prevent the carbon dioxide gas from polluting the operation area. The device mainly solves the following technical problems: 1. It solves the problem of exhaust after cardiac rebeating in children's cardiac surgery extracorporeal circulation operation, which can effectively reduce the occurrence of air embolism; 3. Solve the problem of thoracic cavity exhaust during chest closing surgery; 3. Solve the problem of thoracic cavity exhaust in children's cardiac surgery minimally invasive small incision inlay surgery, which can reduce the occurrence of subcutaneous emphysema; 4. Solve the need to replace every children's cardiac surgery operation The various components of the carbon dioxide surgical field filling pipeline need to be reassembled and cut again; 5. Solve the inefficiency problem of the self-made carbon dioxide surgical field filling pipeline, and design a pipeline suitable for children, so that the carbon dioxide in the children's cardiac surgery field can be reduced. Filling is more sufficient to achieve a more ideal exhaust effect.

Although the present invention has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the present invention, which will be obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention fall within the scope of the claimed protection of the present invention.

Terms such as "upper", "lower", "left", "right", "middle", etc. quoted in this specification are only for the convenience of description and clarity, and are not used to limit the scope of the present invention. Changes or adjustments of their relative relationships, without substantial changes to the technical content, should also be regarded as the scope of the present invention.

Claims (10)

1. A carbon dioxide surgical field filling device applied to children's cardiac surgery, characterized in that it comprises a diffusion head (1), a first connecting pipe (2), a filter (4), an automatic retractable tube reel (5) and A gas flow adjustment mechanism, the diffuser head (1) is connected to one end of the first connecting pipe (2), and the other end of the first connecting pipe (2) is connected to the gas outlet end of the filter (4) , the air inlet end of the filter (4) is connected to the air outlet pipe (7) of the automatic telescopic reel (5), and the air inlet pipe (6) of the automatic telescopic reel (5) is connected to the The outlet end of the gas flow regulating mechanism is connected. 2 . The carbon dioxide surgical field filling device for pediatric cardiac surgery according to claim 1 , wherein the diffusion head ( 1 ) comprises a connection end ( 12 ) and a diffusion end ( 13 ). One end of the end (12) is connected to the end of the first connecting pipe (2) facing away from the filter (4), the other end of the connecting end (12) is connected to the diffusion end (13), and the The diffusion end (13) is provided with a plurality of diffusion holes (14), and the diffusion holes (14) communicate with the cavity inside the diffusion end (13). 3. A carbon dioxide surgical field filling device for pediatric cardiac surgery according to claim 2, wherein the diffusion holes (14) are arranged on the side walls of the diffusion end (13), and each The axes of the diffusing holes (14) all form an included angle of 30° to 60° with the axes of the diffusing ends (13), and the axes of the connecting ends (12) and the diffusing ends (13) form an included angle. 90° to 120° included angle. 4 . The carbon dioxide surgical field filling device for pediatric cardiac surgery according to claim 3 , wherein the diffusion end ( 13 ) is one of a pyramid shape, a truncated cone shape, or a cylindrical shape. 5 . 5. The carbon dioxide surgical field filling device used in pediatric cardiac surgery according to claim 1, wherein the inner diameter of one end of the first connecting pipe (2) connected to the filter (4) is larger than that of the first connecting pipe (2). The first connecting pipe (2) is connected to the inner diameter of one end of the diffusion head (1). 6. A carbon dioxide surgical field filling device applied to pediatric cardiac surgery according to claim 1, wherein the gas flow regulating mechanism comprises a pressure reducing valve (9), and the pressure reducing valve (9) has a pressure reducing valve (9). The air outlet end is connected with the air inlet pipe (6) of the automatic telescopic hose reel (5), and the pressure reducing valve (9) is provided with a pressure gauge (10). 7. A capnography field filling device for pediatric cardiac surgery according to claim 6, wherein the gas flow adjustment mechanism further comprises a flow meter (8), and the flow rate of the flow meter (8) is adjusted. The air end is connected with the air outlet end of the pressure reducing valve (9), the air outlet end of the flow meter (8) is connected with the air inlet pipe (6) of the automatic telescopic hose reel (5), and the flow meter ( 8) A flow regulating valve (17) is provided on it. 8 . The carbon dioxide surgical field filling device applied to pediatric cardiac surgery according to claim 1 , further comprising a second connecting pipe ( 3 ) and an adapter ( 11 ), the adapter ( 11 ) Removably connected to one end of the second connecting pipe (3), the end of the second connecting pipe (3) facing away from the adapter (11) is connected to the air inlet end of the gas flow regulating mechanism. 9 . The carbon dioxide surgical field filling device according to claim 1 , wherein the filter ( 4 ) is provided with a multi-layer filter structure. 10 . 10 . The carbon dioxide surgical field filling device used in pediatric cardiac surgery according to claim 9 , wherein the filter structure comprises a dust removal net and a sterilization and sterilization net, and the dust removal net and the sterilization and sterilization net are along the perimeter. The air inlet end to the air outlet end of the filter (4) are arranged in sequence.

Images