WO2019148347A1 - Surgical smoke evacuation device - Google Patents

Abstract

A surgical smoke evacuation device, comprising a gas storage container (20). The gas storage container (20) comprises an inflow filter (21) and an outflow filter (23) respectively disposed at an inlet hole and/or an outlet hole; the inflow filter (21) and the outflow filter (23) are respectively connected to an inflow pipe (19) and an outflow pipe (24); the gas storage container (20) further comprises a variable-volume chamber. The surgical smoke evacuation device achieves smoke evacuation in a simple and cost-effective way and can also maintain stable pneumoperitoneum during insufflation.

Description

Surgical smoke evacuation device Technical field

The utility model relates to the field of surgical instruments, in particular to a surgical smoke exhausting device

Background technique

Laparoscopic surgery is now widely used worldwide, and many procedures are mainly performed by laparoscopy. The advantages of laparoscopic surgery include reduced postoperative pain, improved cosmetic results and patient satisfaction, and reduced hospital stay. The scope of surgical techniques is increasingly complex, but routinely includes cholecystectomy, adrenalectomy, nephrectomy, fundoplication, hernia repair, intestinal resection, and gynecological surgery. The number of emergency surgeries performed by laparoscopy is also increasing.

Laparoscopic surgery involves blowing a gas (usually carbon dioxide) into the peritoneal cavity to create a pneumoperitoneum. This creates a larger cavity for the surgeon to better observe the organs and lesions being treated. Importantly, it can Safely manipulate specially designed surgical instruments to dissect, remove, and manipulate tissue according to the clinical requirements of each patient.

The formation of this space leads to an increase in intra-abdominal pressure (IAP). The most common is to produce a pressure of 10-20 mm Hg to blow carbon dioxide into the peritoneal cavity at a rate of 4 to 6 liters per minute. A steady flow of air, typically between 200-400 mL per minute, is generated from a specially designed insufflator (insufflator) to maintain the pneumoperitoneum, but these flow rates and intracavity pressure depend on the patient's body, tissue condition And the size of the cavity that the surgeon needs most. This increase in intra-abdominal pressure of the pneumoperitoneum and even changes in the position of the patient when under pressure can stimulate the effects of carbon dioxide absorption, resulting in physiological changes, especially in the blood vessels and respiratory system of the heart. These effects are particularly prevalent and worrying in young children, elderly patients during laparoscopic laparoscopic examinations, or in cases where the size of the cavity itself is small, such as transanal or transvaginal surgery and so-called NOTES (naturally Endoscopic surgery, the initial cavity space itself is small.

Another factor that affects the design and operational characteristics of the blowing device is the leakage of gas into and out of the orifice or trocar orifice through which the instrument enters the abdomen or surgical site through the access orifice or trocar orifice, or Gas is absorbed into the organ to reduce stress. A large number of potential leak paths can cause loss of intra-abdominal pressure. When the insufflator attempts to maintain a stable pressure and respond to the loss of pressure in the lumen, a large number of potential leak paths may themselves manifest as an inflation of the wall of the cavity or abdomen. Pulsation, sometimes called respiratory effects. This movement of the tissue creates instability in the line of sight, especially as the instrument presents the surgeon with the enormous challenges to overcome.

Prior art insufflation devices are calibrated and designed for abdominal volume, pressure and gas flow to minimize patient risk. The insufflation machine continuously samples the intra-abdominal pressure and provides additional gas to compensate for normal leaks in an attempt to create a stable environment in which the surrounding tissue does not move or bulge. However, the prior art insufflator sampling rate is insufficient to maintain a constant pressure in a small lumen (eg, the rectum), allowing for variable leakage rates of the associated trocar and orifice into and out of the lumen, as well as the patient and its The variability in the relative size of the cavity poses considerable challenges even for state-of-the-art insufflation devices that have high sampling rates, response rates, and flow rates to compensate for pressure losses. The principle of Boyle's law is equally applied to this problem (Boyle's law describes that as long as the temperature remains P∝1/v or PV=k (where P is the gas pressure, V is the gas volume, k is a constant), The pressure of the gas tends to increase as the volume of the container decreases.) The temperature of the chamber sometimes occurs when the air blower is used because of the operation with high frequency, very high temperature cutting and coagulation devices. Drastic changes in this additional theoretical and practical understanding of the additional challenges to be overcome.

Summary of the invention

In order to solve the problems in the prior art, the utility model provides a surgical smoke exhausting device.

In order to solve the above problems, the technical solution adopted by the utility model is as follows:

A surgical smoke evacuation device includes a gas storage container including an inflow filter and an outflow filter respectively disposed at an inlet hole and/or an outlet hole, wherein the inflow filter and the outflow filter are respectively connected to the inflow pipe and An outflow tube; the gas storage container further includes a variable volume chamber.

Preferably, further comprising providing a pump on the outflow pipe connecting the outflow filter.

Preferably, the pump is powered by an integrated battery or power source.

Preferably, the pump is a variable speed pump.

Preferably, the inflow tube is connected to an outlet of a multi-device access platform that is connected to an inlet of a multi-device access platform.

Preferably, the inflow tube is connected to an outlet of a pneumoperitone machine, the outflow tube being connected to an inlet of the laparoscope passage.

Preferably, the gas storage container comprises at least one gas storage bag.

Preferably, the at least one air reservoir is separated by a pressure-tight zip line or by a sliding zipper.

Preferably, the gas storage container is a medical grade plastic, cellophane or biodegradable plastic material.

The present invention also provides a surgical access system comprising the surgical smoke evacuation device of any of the above.

The utility model has the beneficial effects of providing a surgical smoke exhausting device, which can remove the smoke generated in the laparoscopic surgery regardless of the size of the operating cavity, and does not affect the operational safety of the insufflation device used; And it is a cost-effective way to solve the smoke while maintaining the stability of the pneumoper during the insufflation.

DRAWINGS

1 is a schematic structural view of a multi-device access platform in Embodiment 1 of the present invention.

2 is a schematic structural view of still another multi-device access platform in Embodiment 1 of the present invention.

Figure 3 is a plan view of the access platform cover of the first embodiment of the present invention.

4 is a schematic view showing the internal structure of a multi-device access platform in Embodiment 1 of the present invention.

Fig. 5 is a schematic cross-sectional view showing a multi-device access platform in the first embodiment of the present invention.

Figure 6 is a cross-sectional view of the multi-device access platform of the first embodiment of the present invention.

Figure 7 is a partial enlarged view of a cut-away view of the multi-device access platform in the first embodiment of the present invention.

FIG. 8 is a schematic structural view of still another multi-device access platform in Embodiment 1 of the present invention.

Figure 9 is a schematic view showing the use of the surgical smoke evacuation device in the second embodiment of the present invention.

Figure 10 is a schematic view showing the use of another surgical smoke evacuation device in Embodiment 2 of the present invention.

Figure 11 is a schematic view showing the structure of a gas storage container in Embodiment 2 of the present invention.

Figure 12 is a schematic view showing the structure of the surgical access system in the third embodiment of the present invention.

Among them, 1-channel platform cover, 2-way tube, 3-variable ratchet, 4-support ring, 5-suture hole, 6-press latch, 7-instrument channel, 8-semi-flexible rubber top cover, 9-pleated, 10-rigid ring frame, 11-inflated inlet, 12-inflated valve, 13-joint, 14-outlet, 15-inlet, 16-cigarette jet, 17-surgical site, 18-pump motor, 19 - Inflow tube, 20-gas storage container, 21-inflow filter, 22-pump, 23-outlet filter, 24-flow tube, 25-rubber flange, 26-conical surface, 27-pneumatic machine, 28 - standard sterile flexible tube, 29-laparoscopic, 30-cutting instrument, 31-electrosurgical electric cutter head, 32-abdominal wall, 33-multi-device access platform, 34-gas flow direction, 35-human tissue, 36-operative cavity , 37-air storage bag, 38-zip line, 39-sliding zipper.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings, in order to provide a better understanding of the present invention, but the following embodiments do not limit the scope of the invention. In addition, it should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention in a schematic manner, and only the components related to the present invention are shown in the drawings instead of the components according to actual implementation. The number, shape and size are drawn, and the shape, number and proportion of each component in actual implementation can be a random change, and the component layout form may be more complicated.

Example 1

As shown in FIG. 1, the utility model provides a multi-device access platform, including a passage platform cover 1 and a passage tube 2, the passage platform cover 1 is covered on the passage tube 2; the passage platform cover 1 comprises a semi-flexible The rubber top cover 8 and the rigid annular frame 10 are fixed together, and the semi-flexible rubber top cover 8 is provided with at least three instrument passages 7 through which the instrument passage 7 is connected with the semi-flexible rubber top cover 8; the rigid annular frame 10 and the passage tube 2 matched butt joint; the rigid annular frame 10 is further provided with an integrally formed inflation inlet 11 which is provided with an outlet 14 and an inlet 15 on the opposite side of the passage platform cover 1; the passage tube 2 is provided with a variable direction ratchet 3, which is variable The ratchet 3 is connected to the support ring 4.

In an alternative embodiment of the present invention, the support ring 4 is provided with a suture hole 5 at a circumferential position; the access platform cover 1 is closed on the passage tube by pressing the latch 6; the rigid annular frame 10 is made of a hard rubber material; The inlet 11 is a straight tube and is connected to the inflation valve 12 and the joint 13, and the joint 13 is connected to the pneumoperitone machine.

As shown in FIG. 2, it is a multi-device access platform when the access platform cover 1 is covered by the passage tube 2. Preferably, the access platform cover 1 is sealed when it is closed.

As shown in FIG. 3, it is a top view of the access platform cover 1. In the present embodiment, three instrument passages 7 are disposed on the semi-flexible rubber top cover 8. It can be understood that four or five can be set according to the needs of the operation. More instrument passages, the arrangement of the instrument passages on the semi-flexible rubber top cover are also not limited, and can be arranged according to actual needs.

Figure 4 is a schematic illustration of the internal structure of the multi-device access platform showing the internal lumen of the inlet 15 and outlet 14 connecting the aerated stabilization and exhaust system. It should be noted that the lumen diameter at the inlet 15 gradually decreases in the direction of entering the access tube, so that the filtered gas used in the flue gas removal of the access tube 2 and the surgical site begins to accelerate, while the lumen diameter of the outlet 14 follows the entry. The direction of the access tube is gradually increased to reduce the flow resistance between the air bag and the surgical site, thereby making the operating cavity and the air bag an integral response.

Figure 5 shows a cross-section of the access platform showing the smoke ring injection port 16 at the proximal connection inlet 15, which directs the filtered puff gas from the inflation and exhaust circuits. The lance jet 16 directs the flow of air to the distal end to "clear" the surgical site at the distal end of the access tube 2 and the surrounding flue gas. These flue gases and residues are then removed via outlet 14 and filtered through an aerated stabilization and exhaust system for recycling. Figure 5 also better shows the pleats 9, which are designed to allow the instrument channel 7 to rotate with low resistance around the central fulcrum of the pleats 9.

Smoke ring ejection port 16 of the air-jet, in particular for causing air flow along the axis of the passage pipe 2, CO ₂ stream thereby forming around the surgical site. The nozzle ring opening close to the access platform cover 1 is the result of careful experimentation and testing. This position avoids the smoke ring ejection opening 16 from interfering with the instrument introduced through the instrument channel 7, and also prevents the ejection from being too close to the patient's tissue, which in extreme cases may dry or dehydrate the tissue. The smoke ring injection port 16 also has the function of heating and humidifying the circulating gas, such as heating the inside and outside of the air belly machine, the gas in the gas storage container or the pump.

Figure 6 shows a schematic view of the cross section of the multi-device access platform. The enlarged portion of the circle in the figure is shown in Figure 7. As shown in FIGS. 6 and 7, the sealing connection of the passage platform cover 1 and the passage pipe 2 is such that a rubber flange 25 is provided through the passage pipe 2, and the passage platform cover 1 is disposed inside the connection with the rigid annular frame 10. The integrally formed tapered surface 26, the tapered surface 26 and the rubber flange 25 are mated and matched, and can be effectively sealed. The tapered face 26 and the rubber flange 25 cooperate with the internal pressurized cavity to apply additional sealing pressure to the rubber flange 25 to maintain the pneumoperitoneum and do not require a gel or foam pad to prevent leakage from the pressurized area. .

Figure 8 shows the access platform cover 1 overlying the access tube 2. Unlike Figure 2, the variable-direction ratchet 3 is coupled to the support ring 4, and the support ring 4 is fully retracted, at which time the access tube 2 is inserted deepest; the support ring 4 in Fig. 2 is fully extended, at which time the insertion tube 2 has the smallest insertion depth. The support ring 4 can be extended or retracted according to the anatomy, and the suture hole 5 is distributed in the circumferential position of the support ring 4, and then fixed to the patient through the suture to provide stability for the instrument under operation.

As shown in FIGS. 1-8, the multi-device access platform includes a passage platform cover 1 and a passage tube 2 for adjusting the height and the depth of penetration by a height/depth adjustment mechanism controlled by the variable-direction ratchet mechanism 3, the passage platform cover 1 part consists of a semi-flexible rubber top cover 8, which carefully balances the elasticity and rigidity so that it can maintain the in-situ condition while inflating and allows the user to confirm the inflation process; it allows passage through the instrument channel The fulcrum position of the instrument of 7 is not moved, and the instrument is allowed to move/rotate freely around the pivot point. The semi-flexible rubber top cover 8 is provided with three or more instrument passages 7, and the connection between the instrument passages 7 and the semi-flexible rubber top cover 8 is a specially designed pleat 9 which is compared with the planar configuration of the semi-flexible rubber top cover 8. Provides more flexibility and less resistance to movement and positioning of the instrument as it passes through the sealing valve of the instrument channel 7. The semi-flexible rubber top cover 8 is fixed on the rigid annular frame 10, the top end of the passage tube 2 abuts the rigid annular frame 10, and the rigid annular frame 10 has a plurality of integrally formed connecting tubes: the inflation inlet 11 is a straight tube connected to the inflation valve 12 and joint 13, the joint 13 is connected to a conventional pneumothorax; the opposite side of the inflated inlet 11 is an outlet 14 and an inlet 15, which form an outflow portion of the gas-filled stabilization and flue gas filtration system, which is used later The smoke evacuation circuit and the inflation stabilization system described in this specification.

The multi-device access platform provided by the utility model can be applied to a system for laparoscopic surgery or other operations. Compared with the prior art access platform, the multi-device access platform of the present invention has the following advantages:

1. The multi-device access platform includes a support ring that allows the insertion depth of the access tube to be adjusted during surgery to better position the access tube depending on the location of the lesion or to work more effectively under different rectal conditions (relative to the longer or shorter rectum of the common rectum). .

2. The multi-device access platform is capable of removing and reinstalling the access platform cover, rotating and repositioning the access platform cover and instrument channels to provide better instrument positioning during the procedure and to facilitate tissue removal during surgery. Remove and install the cover with one hand.

3. The multi-device access platform has a fold at the junction of the semi-flexible rubber cap and the instrument channel, and the instrument and visualization system (laparoscopic) can move over a greater range of fulcrums while maintaining a fixed pivot point for pivoting the instrument.

4. The sealing mechanism of the multi-device access platform prevents gas leakage in the pressurized space, the rubber flange in the sealing cover presses the tapered surface, and the air pressure in the passage tube also applies additional pressure on the rubber flange to help form a completely sealed Access pipe.

5. The multi-device access platform includes an inflation inlet channel for inflation, and the other inlet and outlet are dedicated to forming a field of view smoke removal and gas circulation system.

6. The outlet passage of the multi-device access platform is specially designed as a wide-bore passage, the inlet passage is gradually narrowed, and the narrow end is connected to an injection port close to the passage platform cover to the distal end of the passage tube to guide the gas along parallel to The direction of the passage tube flows and thus forms a purge loop that diverts gases, fumes and toxic materials from the surgical site with a dedicated inflow and outflow filter system.

7. The multi-device access platform also includes a smoke ring ejection port that directs gas flow from the proximal end of the access platform cover to the distal surgical site to avoid potential risk of tissue damage within the surgical cavity. This risk is caused by the drying and cooling effects of cold gas flushing human tissue at the surgical site, such as drying and dehydration.

8. The multi-device access platform not only controls different insertion depths, but also the easy-to-remove rotatable and repositioned access platform cover, and there are three integrated ports on the access platform cover for inflation, smoke exhaust, and inflation stabilization.

Example 2

As shown in FIG. 9, the utility model provides a surgical smoke exhausting device, comprising a gas storage container 20, wherein the gas storage container 20 comprises an inflow filter 21 and an outflow filter 23 respectively disposed at the inlet hole and/or the outlet hole, and the inflow filtering The ejector 21 and the effluent filter 23 are connected to the inflow pipe 19 and the outflow pipe 24, respectively; the gas storage container 20 further includes a variable volume chamber.

In an alternate embodiment of the present invention, the surgical smoke evacuation device includes a pump 22 disposed on an outflow tube 24 that connects the outflow filter 23; the pump 22 is powered by an integrated battery or power source; and the pump 22 is a variable speed pump.

As shown in Fig. 9, a surgical smoke evacuation device of the present invention is shown in a schematic sectional view of a typical surgical cavity 36, and a pathological operation in which electrosurgical anatomy or coagulation is embedded in the surgical site 17 is shown. The pneumoperitone machine 27 is coupled to the joint 13 of the multi-device access platform 33 via a standard sterile flexible tube 28 to expand the surgical lumen, wherein the multi-device access platform 33 is secured in the incision through the abdominal wall 32 of the patient. The gas of the pneumothorax machine 27 flows through the standard sterile flexible tube 28 in the direction indicated by the gas flow direction 34 to maintain stable intra-abdominal pressure and provide for visual observation of human tissue 35 and surgical site 17, processing anatomy and removal. space. Various surgical instruments and viewing devices enter the surgical cavity 36 via the instrument channel 7 of the multi-device access platform 33. As described in the previous embodiment, the multi-device access platform 33 has three or more instrument channels 7. A sealing valve is provided in the instrument channel 7, the purpose of which is to allow the surgical instrument to travel, remove and move without losing pressure within the surgical cavity 36. Laparoscope 29 is placed in an instrument channel 7 for the convenience of viewing internal organs, in most cases connected to the camera and external screen for viewing by a clinician; electrosurgical head is placed in another instrument channel 7 31, which is used for cutting and solidifying tissue by cutting and solidifying with high frequency heat. When the electrosurgical electrosurgical head 31 is in contact with tissue during surgery, these instruments will form a stream of smoke and vaporized tissue that will obscure the surgeon's field of view and adhere to the laparoscope 29. There is also a cutting instrument 30 placed in the instrument channel 7, which can also be a grasping device for manipulating, retracting and moving tissue. Once the surgical chamber is pressurized with the gas supplied by the pneumatic belly machine 27, the gas will flow outwardly via the outlet 14 and then forward into the inflow filter 21 via the inflow tube 19 and into the gas storage container 20 via the inflow filter 21. The pneumothorax machine 27 will normalize the pressure of the gas storage container 20 to match the pressure within the surgical cavity 36, and the gas storage container 20 will expand. The pneumoperitone machine 27 will measure the pressure of both the surgical cavity 36 and the gas storage container 20, and the effective volume of the surgical cavity 36 can be more effective in stabilizing the intra-abdominal pressure by increasing the external gas storage, thus eliminating the description of Boyle's law The effect of the anatomy, particularly the abdominal wall 32 and other flexible structures that may oscillate or bulge, is effectively stabilized because the pneumothorax machine 27 maintains a stable pressure and compensates for pressure loss by leakage of the instrument in and out of the instrument channel 7 and physiological absorption of the gas.

The gas storage container 20 is connected to the other outflow filter 23 that flows out from the inside, and the gas enters the pump 22 embedded in the outflow pipe 24 via the flexible pipe through the outflow filter 23, and then enters the multi-device access platform 33 via the connector. . Connecting the pump motor 18 to push the pump 22 promotes the flow of gas into the surgical site 17, and completes the helium reflux while flowing the gas containing smoke and harmful smoke in its circulation path toward the filtered gas storage container 20. The completion of the loop creates a stable gas circulation, and the gas carrying the smoke and harmful gases is filtered and returned through the inflow filter 21 and the outflow filter 23, thereby creating a clear line of sight and a smoke-free environment to complete the surgery, and combining The stabilizing effect of the gas storage container 20 creates a stable surgical site and instrument that does not bulge.

Referring now to Figure 10, a more conventional laparoscopic approach is shown: using a standard laparoscopic trocar instrument channel 7 to access the abdomen or surgical lumen. As with conventional standard techniques, a pneumoperitoneum is formed such that a pneumoperitone 27, which typically provides carbon dioxide gas, is insufflated to the surgical lumen 36 via a standard sterile flexible tubing 28 and is connected to a Luer connector or fitting located on the laparoscopic orifice housing. 13. The gas will enter the surgical site 17, and a pressure of 10-20 mmHg is typically set depending on the condition of the patient. Next, the puff machine 27 maintains a steady pressure as quickly as possible to compensate for pressure loss due to leakage or absorption through other orifices and instruments to prevent excessive pressure or excessive absorption of gas into surrounding tissues and organs. Typically two or more additional laparoscopic instrument channels 7 are positioned to facilitate easy contact and direct viewing of the instrument in order to initiate operational anatomy or electrotherapy of the tissue and lesions of the surgery. The position of the visualization laparoscope 29 and in this case the electrosurgical electrosurgical head 31 or the grasping or cutting instrument 30 will vary during the procedure, wherein the instrument channel 7 is more fixed by contact with the puncture at the surgical site 17 to contact Lesion.

Depending on the condition of the procedure, the surgeon can choose to connect only the insufflation pressure or connect only the exhaust circuit or both if you notice the swelling or movement of the tissue, as follows:

Blowing is stable: one end of the inflow tube 19 is connected to the outlet 14 of the instrument channel 7, and the other end is connected to the inflow filter 21 and into the gas storage container 20, in combination with the volume of the gas storage container 20 and the increased effective volume of the surgical site 17 volume. Will stabilize the pneumoperitoneum. If smoke removal and stabilization are desired after the blow has stabilized, the effluent filter 23 connects the inlet connection with the outlet tube 24 of the pump 22 to the inlet 15 of the instrument channel 7, initiating the pump motor 18 to promote gas flow and complete the degassing loop. The smoke and steam are transferred from the surgical site 17 via a filtered and activated circulatory system.

Reference is now made to Fig. 11, which is an illustration of an expandable volume gas storage container 20, in which case the expandable volume reservoir 20 is shown coupled to a filter, wherein 19 represents an inflow tube and 24 represents an outflow tube. . The variable volume gas storage container 20 can be fabricated from a variety of materials, such as medical grade plastics, cellophane, or biodegradable plastic materials to aid in handling and avoid environmental contamination. It is also possible to include at least one air bag, which is separated from the adjacent second air bag 37 by a pressure-sealed zipper wire 38 (which is opened by the slide zipper 39) and is separately sealed, so that the air bag 37 starts There is a certain volume, and the effective volume is gradually increased as the zipper line is gradually opened. In this illustration, three air bags 37 are shown inflated, while the fourth air bag 37 of the air bag chamber remains sealed from the air bag chamber that has been opened and connected. If there are 500 mL per air bag cavity, then the three combined air bag chambers will therefore represent and effectively increase the volume of the 1.5 liter air bag. It should be understood that the present embodiment should not be construed as limiting the present invention, but merely exemplifying one of the use cases.

The object of the present invention is to provide a surgical smoke evacuation device which can ensure stable pressure during operation, minimize movement of the cavity or cavity wall, thereby creating a stable surgical environment, and at the same time allowing the pneumoperitone machine to be safe and effective in the cavity. The insufflation of the gas flows regardless of the size of the cavity and the amount of leakage during the operation.

Energy source instruments for laparoscopic procedures, such as electrocautery, laser systems, and ultrasonic scalpels, produce gaseous by-products of aerosols, including viable and non-viable cellular material. This surgical smoke can obscure the surgical field and can adversely affect the human body. Most laparoscopic surgeons focus on maintaining a good view of the surgical field, most commonly releasing or discharging smoke into the operating room environment. Some medical centers use filters for surgical smog, but these filters focus on removing smoke to keep the surgeon's view, rather than protecting the health of the personnel inside the surgical facility.

In conventional laparoscopic surgery, the surgeon will periodically discharge the effluent to the atmosphere by opening and closing the laparoscopic access port (trocar) or its valve, or in some cases, connecting the access port to a dedicated A smoke removal system that effectively removes smoke from the abdomen into specially designed and filtered containers.

In smaller cavities within the body, this smog gathering is further magnified when electrosurgical techniques are used and severely limits the completion of certain procedures because the surgeon's line of sight is impaired and this smog buildup is generally considered It severely limits the widespread use of TATME or TAMIS or other natural endoscopic surgical techniques.

Another object of the present invention is to create a system that removes the smoke generated during laparoscopic surgery regardless of the size of the surgical cavity and does not affect the operational safety of the pneumoperitone machine used.

Yet another object of the present invention is to solve the two separate but related problems of simultaneous evacuation while maintaining a stable belly during insufflation in a simple and cost effective manner.

Example 3

A surgical access system comprising an insufflation device, an instrument access platform into the surgical site as described in embodiment 1, and a surgical smoke evacuation device as described in embodiment 2; the access platform having an outlet and an inlet connected to the surgical row The air storage bag or the gas storage container of the smoke device stabilizes the inflation in the system; the gas storage container circulates the smoke by means of an integrated battery or a power supply pump, and clears the visual path through the filtering system to prevent potentially harmful particulate smoke. Recycling. The insufflation device in the surgical access system is a pneumoperitoneum, and more preferably a pulsed pneumoperitoneum.

In some embodiments, the access platform or surgical smoke evacuation device in the system can function independently of each other. In one embodiment, the multi-device access platform provides improved access through natural or artificial incisions, allowing the depth of access to the lumen or incision to be adjusted and fixed as needed, facilitating manipulation of instruments and visualization equipment, such as multi-device access platforms The pleats placed around the instrument channel on the access platform cover make laparoscopic and laparoscopic instruments (scissors, grasping forceps, and endoscopic surgical instruments) easier to operate, and use a secure and easily controlled push latch The access platform cover is easy to fix and disassemble. In addition, the system is capable of rotating the access platform cover during placement or during surgery, and the user can flexibly adjust to the surgical condition, patient anatomy, or user preferences.

In another embodiment, any of the multi-device access platform and the surgical smoke evacuation device in the surgical access system can be used to maintain the pneumoperitoneum and/or smoke exhaust independently of the conventional laparoscopic channel (sometimes referred to as a trocar). As shown in Figure 12, by connecting the inflow tube 19 to the outlet of a conventional pulsed abdominal machine and connecting the outflow tube 24 to the inlet of a conventional laparoscopic tunnel puncturing device, there is no inflow filter 21, outflow filter 23 and pump In the case of 22, the gas storage container 20 can also achieve complete pneumoperitoneum stabilization.

In another embodiment, the gas storage container 20, along with the existing inflow tube 19, flows out when connected to a luer or other joint of the pneumoperitoneum and the conventional laparoscopic passage (instead of being connected to the new instrument passage) The tube 24, the pump 22, and the inflow filter 21 and the outflow filter 23 form a smoke evacuation circuit for use in conventional laparoscopic surgery.

In still another embodiment, the outlet 14 of the multi-device access platform is coupled to a silica gel or other inflow tube 19 having a similar soft lumen, and the inflow tube 19 delivers gas and toxic fumes to the gas storage container 20, the gas storage container 20 The primary function is the principle explained in Example 1 to inflate and pressurize the cavity by increasing and expanding the effective volume. The gas containing microorganisms and carbonization upon entry enters the inflow filter 21 through the inflow pipe 19 to filter the gas and the smoke stream, and then is sent to the gas storage container 20, and the filtered gas is then passed through the outflow filter 23, at the battery or the power source. The dedicated pump 22 (shown with a separate pump, which can be disposable or reusable) is connected to the inlet 15 of the multi-device access platform through the silicone outflow tube 24, and the gas is sprayed on the multi-device access platform. Under the acceleration effect of the mouth, the flue gas around the surgical site at the distal end of the access tube of the instrument access platform is removed. This process allows the smoke generated by electrosurgery to circulate continuously through the smoke evacuation and filtration system of the surgical access system, while at the same time maintaining a stable pneumoperitoneum.

The above is a further detailed description of the present invention in conjunction with the specific preferred embodiments. It is not intended that the specific embodiments of the invention are limited to the description. It will be apparent to those skilled in the art that the present invention can be made without departing from the spirit and scope of the invention. protected range.

Claims (10)

A surgical smoke evacuation device, comprising: a gas storage container, wherein the gas storage container comprises an inflow filter and an outflow filter respectively at the inlet hole and/or the outlet hole, the inflow filter and the outflow filter respectively Connecting the inflow tube and the outflow tube; the gas storage container further includes a variable volume chamber. A surgical smoke evacuation device according to claim 1 further comprising a pump disposed on the outflow tube connecting said effluent filter. The surgical smoke evacuation device of claim 2 wherein said pump is powered by an integrated battery or power source. The surgical smoke evacuation device of claim 2 wherein said pump is a variable speed pump. The surgical smoke evacuation device of claim 1 wherein said inflow tube is coupled to an outlet of a multi-device access platform, said outflow tube being coupled to an inlet of the multi-device access platform. A surgical smoke evacuation device according to claim 1, wherein said inflow tube is connected to an outlet of the pneumoperitone machine, and said outflow tube is connected to an inlet of said laparoscope passage. The surgical smoke evacuation device of claim 1 wherein said gas storage container comprises at least one air reservoir. The surgical smoke evacuation device of claim 7 wherein said at least one air reservoir is separated by a pressure-tight zip line or by a sliding zipper. The surgical smoke evacuation device of claim 1 wherein said gas storage container is medical grade plastic, cellophane or biodegradable plastic material. A surgical access system comprising the surgical smoke evacuation device of any of claims 1-9.

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