CN212699147U

CN212699147U - Fume extractor for laparoscopic surgery

Info

Publication number: CN212699147U
Application number: CN202020686361.7U
Authority: CN
Inventors: 龚照林; 何丽; 林永红; 黄璐; 谢聪; 候倩男; 游小林
Original assignee: Chengdu Womens and Childrens Central Hospital
Current assignee: Chengdu Womens and Childrens Central Hospital
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-03-16
Anticipated expiration: 2030-04-28

Abstract

The utility model discloses a fume extractor for laparoscopic surgery. The puncture sheath comprises an air pump and a smoke filtering device, wherein an air inlet of the air pump is connected with an air inlet and an air outlet on the side surface of the puncture sheath through an air pumping pipe; the smoke filtering device comprises a bottle body with a first accommodating cavity and a second accommodating cavity which are closed, a transverse separator is arranged in the second accommodating cavity, the top of the separator is in a central symmetrical wave shape, and a plurality of exhaust holes are formed in the top of the separator; a liquid inlet channel which is respectively communicated with the first accommodating cavity and the second accommodating cavity is arranged on the bottle body, and a first sealing cover is arranged at an inlet which is close to the liquid inlet channel on the first accommodating cavity; the first chamber that holds communicates through the gas outlet of first outlet duct with the air extractor, and first outlet duct extends to the first chamber the latter half that holds, and first chamber and the second that holds is provided with communicating pipe between holding the chamber, and communicating pipe one end is located the first chamber the first half that holds, and the other end is located separator top below.

Description

Fume extractor for laparoscopic surgery

Technical Field

The utility model relates to the field of medical auxiliary articles, concretely relates to fume extractor is used in laparoscopic surgery.

Background

With the development of modern medicine, minimally invasive surgery is the development direction of surgical operation at present, and the minimally invasive surgery has the advantages of small wound, quick recovery and less pain, and becomes the object and the direction which are jointly pursued by the modern medicine. In some aspects, the traditional operation is gradually replaced by the laparoscopic technology, and when the laparoscopic operation is performed, electric energy instruments such as a bipolar instrument, a monopole instrument, an ultrasonic knife, a hectogram clamp and the like are generally used for performing the operation, but the electric energy instruments generate smoke, so that the definition of a visual field in the operation is influenced, and certain inconvenience is brought to the operation of a doctor.

Meanwhile, no matter the existing laparoscope operation is single-hole or multi-hole, two or more puncture sheaths are needed for placing surgical instruments and laparoscope lenses, and the side surface of each puncture sheath is provided with an air inlet and an air outlet. At present, the operation is basically performed by utilizing the air inlet and outlet on the side of the puncture sheath corresponding to the laparoscope lens and the carbon dioxide air inlet device to perform the carbon dioxide pneumoperitoneum air inlet (the puncture sheath is provided with a switch for manually opening and closing the air inlet and outlet). In the laparoscopic surgery process of some hospitals, smoke is discharged into an operating room through an air inlet and an air outlet on the side surface of the other puncture sheath, so that the health of medical staff is easily injured.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough among the prior art, the utility model aims at providing a fume extractor for laparoscopic surgery, it can avoid smog directly to discharge in a large number to the operating room to reduce the injury that probably causes medical personnel's healthy.

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

the smoke exhaust device for the laparoscopic surgery comprises an air extractor and a smoke filtering device, wherein an air inlet of the air extractor is detachably connected with an air inlet and an air outlet on the side surface of a puncture sheath through an air extraction pipe, and a first one-way valve is arranged on the air extraction pipe; the smoke filtering device comprises a bottle body with a first accommodating cavity and a second accommodating cavity which are closed, a transverse separator is arranged in the second accommodating cavity, the top of the separator is in a central symmetrical wave shape, and a plurality of exhaust holes are formed in the top of the separator;

a liquid inlet channel which is respectively communicated with the first accommodating cavity and the second accommodating cavity is arranged on the bottle body, and a first sealing cover is arranged at an inlet which is close to the liquid inlet channel on the first accommodating cavity; the first chamber that holds communicates through the gas outlet of first outlet duct with the air extractor, and first outlet duct extends to the first chamber the latter half that holds, and first chamber and the second that holds is provided with communicating pipe between holding the chamber, and communicating pipe one end is located the first chamber the first half that holds, and the other end is located separator top below.

The utility model has the advantages that:

during the application, hold intracavity splendid attire normal saline at first chamber and the second of holding, first chamber and the second of holding holds the normal saline of intracavity and does not cross first outlet duct bottom and separator top respectively.

In the operation process, when smoke needs to be filtered, the air extractor is opened after the air inlet and the air outlet on the side surface of the puncture sheath connected with the air extracting pipe are kept normally open. The aspirator opens the smog in the back gas abdomen and follows through the puncture sheath along with gas in proper order, the exhaust tube, aspirator and first outlet duct get into first chamber that holds, most smog is absorbed by normal saline, remaining smog gets into the second along with gas through communicating pipe and holds the intracavity, the big bubble that produces communicating pipe is separated into a plurality of small bubbles under the effect of separator, thereby the total area of contact of bubble with normal saline has been increased, thereby combine the second to hold the setting of intracavity normal saline and absorbed the smog in the gas to the at utmost. Then the second holds intracavity and holds the discharge of intracavity through filterable gaseous inlet channel near the second, avoids smog direct a large amount of emission to the operating room to the injury of smog to medical personnel's health has been reduced.

Drawings

FIG. 1 is a schematic view of a smoke evacuation device for laparoscopic surgery in a first embodiment;

FIG. 2 is a partial schematic structural view of a smoke evacuation device for laparoscopic surgery in a second embodiment;

FIG. 3 is a schematic view of a smoke evacuation device for laparoscopic surgery in a third embodiment;

FIG. 4 is a schematic view of a smoke evacuation device for laparoscopic surgery in a fourth embodiment;

FIG. 5 is a partial cross-sectional view of a fifth embodiment of a mechanical valve after installation;

FIG. 6 is a left side view of the support member and the suction tube of FIG. 5.

Wherein, 1, puncture sheath; 2. an air exhaust pipe; 3. an air extractor; 4. a first air outlet pipe; 5. a first sealing cover; 6. a body; 7. a second sealing cover; 8. a separator; 9. a communicating pipe; 11. a first check valve; 12. a first branch pipe; 13. a first secondary liquid containing bottle; 14. a second sub-liquid containing bottle; 15. a first interface; 16. a bleed pipe; 17. a second branch pipe; 18. a through hole; 19. a support member; 20. a spring; 21. a top block; 22. a protrusion; 23. a slideway; 24. a liquid containing bottle; 25. a flexible bag; 26. and a third interface.

Detailed Description

The following detailed description of the present invention will be made with reference to the accompanying drawings so as to facilitate the understanding of the present invention by those skilled in the art. It should be understood that the embodiments described below are only some embodiments of the invention, and not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive step, without departing from the spirit and scope of the present invention as defined and defined by the appended claims, fall within the scope of protection of the invention.

As shown in fig. 1, the smoke evacuation device for laparoscopic surgery comprises an air pump 3 and a smoke filtering device, wherein an air inlet of the air pump 3 is detachably connected with an air inlet and an air outlet on the side surface of a puncture sheath 1 through an air exhaust pipe 2, and a first one-way valve 11 is installed on the air exhaust pipe 2; smog filter equipment holds the bottle in chamber including having the first chamber that holds of confined and second, and the second holds the intracavity and is provided with horizontal separator 8, and the wave of separator 8 top for being centrosymmetric has seted up a plurality of exhaust holes at separator 8 top.

As shown in fig. 1, the bottle body is provided with a liquid inlet channel which respectively leads to the first accommodating cavity and the second accommodating cavity, and a first sealing cover 5 is arranged at an inlet close to the liquid inlet channel on the first accommodating cavity; the first chamber that holds communicates through the gas outlet of first outlet duct 4 with air extractor 3, and first outlet duct 4 extends to the first chamber the latter half that holds, and first chamber and the second that holds is provided with communicating pipe 9 between holding the chamber, and 9 one end of communicating pipe is located the first chamber the first half that holds, and the other end is located 8 top belows of separator.

The scheme utilizes the puncture sheath to exhaust air, and reduces the frequency of replacing instruments in the operation relative to the mode of using the laparoscope to wash the suction apparatus to suck smoke through the puncture sheath in the operation, thereby improving the operation efficiency and safety.

In practice, in the first embodiment, in order to facilitate observation of the gas exhausted by the smoke exhaust device for laparoscopic surgery, the exhaust tube 2 and the first gas outlet tube 4 are transparent tubes.

In order to facilitate the installation of the separator 8 when the bottle body releases the liquid in the bottle body after the operation is finished, the part of the separator 8 close to the bottom of the bottle body is in a ring shape matched with the side wall of the second accommodating cavity, and the bottle body comprises a body 6 with an opening at the bottom and a second sealing cover 7 detachably connected with the opening side of the body 6. When the separating element 8 needs to be taken out, the second sealing cover 7 is taken down and then vertically suspended to hold the body 6, and the separating element 8 moves downwards under the action of self gravity to be separated from the body 6.

In order to facilitate the installation and the disassembly of the air inlet and the air outlet on the side surface of the puncture sheath 1 and the air outlet 2, the air inlet and the air outlet of the puncture sheath 1 are connected through a thread pair (namely, the connection part of the air inlet and the air outlet and the carbon dioxide air inlet device in the background technology is the same).

In a second embodiment, in order to facilitate the surgical operation, as shown in fig. 2, the smoke evacuation apparatus for laparoscopic surgery further comprises a flexible and curved bleed air pipe 16, wherein one end of the bleed air pipe 16 is open and the other end is detachably connected to the end of the suction pipe 2 away from the suction machine 3 through a first interface 15. The material of the bleed tube 16 may be a urinary catheter material. In addition, a plurality of through holes 18 leading to the passage of the bleed air tube 16 are formed in the side wall of the bleed air tube 16 at the end far away from the first port 15, so that when the end of the bleed air tube 16 far away from the first port 15 is blocked by the tissue of the patient, the smoke in the abdominal cavity can be sucked out through the through holes 18.

During the application, after puncture sheath 1 has been installed at the puncture, utilize the puncture to put into patient's internal with the open end of bleed pipe 16 (when meetting to put into the difficulty, usable and bleed pipe 16 complex guide wire puts into bleed pipe 16, and the one end that first interface 15 was kept away from to bleed pipe 16 at this moment is provided with the grid to the guide wire supports and leans on and leads), and with exhaust tube 2 and first interface 15 be connected, utilize bleed pipe 16 to inhale the smog in the abdominal cavity. When smoke is drawn from the puncture sheath at the air inlet, the provision of the bleed tube 16 enlarges the distance between the air inlet point and the air suction point, thereby better drawing out smoke from the abdominal cavity.

In the third embodiment, as shown in fig. 3, the suction pipe 2 between the first check valve 11 and the suction machine 3 is provided with a first branch pipe 12 and a second branch pipe 17, and the second branch pipe 17 is closer to the suction machine 3; the other end of the first branch pipe 12 is provided with a second interface which is used for being connected with the irrigation aspirator and can be opened and closed; the other end of the second branch pipe 17 is connected with a liquid containing bottle 24.

When the suction device is applied, the liquid suction end of the irrigation aspirator is positioned in the other puncture sheath (namely, the puncture sheath at the non-air suction point), and the air extractor 3 provides negative pressure required by the operation of the irrigation aspirator. By utilizing the work of the irrigation aspirator and the air extractor 3 and the gravity of the liquid, the useless liquid in the abdominal cavity is sucked out to the liquid holding bottle 24 through the irrigation aspirator, the first branch pipe 12, the air extracting pipe 2 and the second branch pipe 17 in sequence, thereby facilitating the operation (namely, the smoke exhaust device for laparoscopic surgery can absorb smoke and combine the smoke absorption of the irrigation aspirator, when absorbing the smoke, the smoke enters the smoke filtering device through the puncture sheath 1, the air extracting pipe 2 and the air extractor 3 in sequence and is discharged, when absorbing the liquid, the liquid enters the liquid holding bottle through the irrigation aspirator, the first branch pipe 12, the air extracting pipe 2 and the second branch pipe 17 in sequence.)

Specifically, as shown in fig. 3, one end of the second branch pipe 17 close to the suction pipe 2 is funnel-shaped, so that the liquid can enter the second branch pipe 17 through the suction pipe 2 under the action of its own weight, and then enter the liquid containing bottle 24. Wherein, the bottle body and the liquid containing bottle 24 are both installed on the first base, that is, the components in the dotted line frame in fig. 3 are all installed on the first base, thereby facilitating the placement of the smoke exhausting device for laparoscopic surgery.

The smoke exhaust device for laparoscopic surgery further comprises a control unit and a power supply unit for supplying power, wherein the control unit is in communication connection with the air extractor 3 and an air pressure sensor for collecting the air pressure in the abdominal cavity of the patient. The air pressure sensor may be installed in the suction pipe 2. When the air pressure value collected by the air pressure sensor is smaller than the preset air pressure threshold value in the control unit, the control unit controls the air pump 3 to stop working, so that the excessively low air pressure of the abdomen of the patient is avoided.

In the fourth embodiment, as shown in fig. 4, in order to adapt to the situation that a lot of liquid needs to be sucked out at one time in the operation, two first sub liquid containing bottles 13 and two second sub liquid containing bottles 14 with detachable sealing caps are sequentially arranged on the suction tube 2 between the first branch tube 12 and the suction machine 3, a flexible bag 25 hermetically connected with the sealing caps is fixedly arranged on the bottom surfaces of the sealing caps, and the suction tube 2 at the tops of the sealing caps is detachably connected through a third interface 26.

In application, after the liquid to be sucked out at one time fills the flexible bag 25 in the first sub liquid bottle 13, the remaining liquid will be continuously sucked out under the action of the air pump 3, so that part of the liquid is transferred to the flexible bag 25 in the second sub liquid bottle 14, thereby completing the sucking out of a large amount of liquid at one time. When smoking or sucking liquid again, the sealing cap on the first sub-liquid bottle 13, the flexible bag 25 filled with liquid and the part of the suction tube 2 between the sealing cap and the third interface are replaced, and then the subsequent operation is performed. The bottle body, the first sub liquid containing bottle 13 and the second sub liquid containing bottle 14 are all mounted on the second base, that is, the components in the dotted line frame in fig. 4 are all mounted on the second base, so that the smoke exhaust device for laparoscopic surgery is convenient to place during surgery.

In a fifth embodiment, as shown in fig. 5 and 6, a mechanical valve is mounted in the end of the aspiration tube 2 close to the puncture sheath (wherein the protuberance 22 is closer to the point of aspiration than the support 1, i.e. the direction of the flow of the aspiration is from right to left in fig. 4). The working principle is as follows: when the abdominal pressure is less than or equal to a set value (generally 12mmHg, and the value is determined by the mechanism of the mechanical valve), under the action of the spring 20 (under the action of the spring 20, the top block 21 can move along the slide way 23, the slide way 23 is fixedly arranged on the support piece 19, and the support piece is fixedly arranged in the extraction tube 2), the top block 21 blocks the channel formed by the bulge 22, so that the extraction tube 2 is closed; when the abdominal cavity pressure is larger than the set value, the top block 21 does not block the channel formed by the bulge 22, so that air can be extracted under the action of the air extractor 3, and the purely mechanical opening and closing of the air extraction pipe 2 is realized.

Claims

1. The smoke exhaust device for the laparoscopic surgery is characterized by comprising an air pump (3) and a smoke filtering device, wherein an air inlet of the air pump (3) is detachably connected with an air inlet and an air outlet on the side surface of a puncture sheath (1) through an air exhaust pipe (2), and a first one-way valve (11) is installed on the air exhaust pipe (2); the smoke filtering device comprises a bottle body with a first accommodating cavity and a second accommodating cavity which are closed, a transverse partition (8) is arranged in the second accommodating cavity, the top of the partition (8) is in a central symmetry wave shape, and a plurality of exhaust holes are formed in the top of the partition (8);

a liquid inlet channel which is respectively communicated with the first accommodating cavity and the second accommodating cavity is arranged on the bottle body, and a first sealing cover (5) is arranged at an inlet which is close to the liquid inlet channel on the first accommodating cavity; the first chamber that holds communicates through the gas outlet of first outlet duct (4) and air extractor (3), first outlet duct (4) extend to the first chamber the latter half that holds, first chamber and the second that holds is provided with communicating pipe (9) between the chamber, communicating pipe (9) one end is located the first chamber the first half that holds, and the other end is located separator (8) top below.

2. The smoke evacuation device for laparoscopic surgery according to claim 1, wherein said suction tube (2) and said first air outlet tube (4) are transparent tubes.

3. The smoke evacuation apparatus for laparoscopic surgery according to claim 1, wherein the portion of the partition (8) near the bottom of the bottle body, which includes a body (6) having a bottom opening and a second sealing cap (7) detachably coupled to the open side of the body (6), has a ring shape to be fitted with the sidewall of the second receiving chamber.

4. The smoke evacuation device for laparoscopic surgery of claim 1, wherein the air evacuation tube (2) is connected with the air inlet and outlet of the puncture sheath (1) through a screw pair.

5. The smoke evacuation device for laparoscopic surgery according to claim 1, further comprising a flexible and bent air-entraining tube (16), wherein one end of the air-entraining tube (16) is open and the other end is detachably connected with the end of the air-extracting tube (2) far away from the air extractor (3) through a first interface (15).

6. The smoke evacuation device for laparoscopic surgery of claim 5, wherein the side wall of the air-entraining duct (16) far away from the first interface (15) is provided with a plurality of through holes (18) leading to the air-entraining duct (16).

7. A smoke evacuation device for laparoscopic surgery according to any of claims 1 to 6, wherein a first branch pipe (12) and a second branch pipe (17) are provided on the suction pipe (2) between the first check valve (11) and the suction machine (3), said second branch pipe (17) being closer to the suction machine (3); the other end of the first branch pipe (12) is provided with a second interface which is used for being connected with the irrigation aspirator and can be opened and closed; the other end of the second branch pipe (17) is connected with a liquid containing bottle (24).

8. The smoke evacuation apparatus for laparoscopic surgery of claim 7, wherein said bottle body and said liquid holding bottle (24) are installed on the first base.

9. The smoke evacuation apparatus for laparoscopic surgery according to claim 7, further comprising a power supply unit for supplying power and a control unit communicatively connected to the air extractor (3) and an air pressure sensor for collecting the air pressure in the abdominal cavity of the patient.