CN210354891U

CN210354891U - Smoke purifier for laparoscopic surgery

Info

Publication number: CN210354891U
Application number: CN201821704860.3U
Authority: CN
Inventors: 贾忠; 黄佳清; 贾辰洁; 万亚锋; 陆军
Original assignee: Hangzhou First Peoples Hospital
Current assignee: Hangzhou First Peoples Hospital
Priority date: 2018-10-21
Filing date: 2018-10-21
Publication date: 2020-04-21
Anticipated expiration: 2028-10-21

Abstract

The utility model discloses a laparoscopic surgery smoke purifier, including casing, suction fan and filter equipment, the casing front end is equipped with the suction head, is equipped with the gas outlet on the casing front end is global, and suction fan and filter equipment are located between suction head and the gas outlet. The utility model discloses can in time clear away harmful operation smog, eliminate the harm to medical personnel and disease, can inhale the smog that the operation produced in the surgical operation that uses high frequency electrotome, under the pressure differential effect, smog adsorbs the filtration through filter equipment, and clean air after the innocent treatment is discharged from the gas outlet again, prevents that smog from constituting harm to operating room medical personnel and patient, and simple structure, convenient to use, easily operation.

Description

Smoke purifier for laparoscopic surgery

Technical Field

The utility model relates to a medical instrument, more specifically say, it relates to a laparoscopic surgery smoke purifier.

Background

A high-frequency electric knife is an electric surgical instrument for replacing a mechanical scalpel to cut tissues. The tissue is heated when high-frequency high-voltage current generated by the tip of the effective electrode contacts with the body, so that the separation and coagulation of the body tissue are realized, and the effects of cutting and hemostasis are achieved. When a high-frequency electric knife is used for cutting tissues and stopping bleeding, surgical smoke is generated. The surgical smoke has strong peculiar smell, and also contains various harmful chemical components, active viruses, active cells, micro-particles and the like. In recent years, researches show that the high-frequency electric knife can even vaporize intact cells and blood tissues, the vaporized tumor cells can leak out through gaps around a laparoscopic cannula in laparoscopic surgeries, and tissue damage caused by the laparoscopic cannula and the trocar can cause the implantation of the tumor cells. Since the smoke generated in the surgical operation using the high-frequency electric knife may cause damage to medical staff and patients in the operating room, the harmful smoke should be removed in time during the operation. The invention with the publication number of CN106264718A is specially beneficial to disclosing a surgical smoke aspirator in 2017, 1 month and 4 days. Comprises a negative pressure suction device and a conduit; the guide pipe comprises a main pipe, a three-way connector, a first shunt pipe and a second shunt pipe; one end of the main pipe is connected with the negative pressure suction device, and the other end of the main pipe is connected with the three-way connector; the three-way connector is connected with the first shunt pipe; one end of the first shunt pipe is connected with the three-way connector, and the other end of the first shunt pipe is connected with the first suction head; the first suction head comprises a cavity for the electric knife to pass through, the cavity is connected with the first shunt pipe through a pipeline, and an opening for the cutting edge of the electric knife to extend out of the cavity is formed in the first suction head; a smoking gap is arranged between the cutting edge and the opening; the smoke generated by the operation is sucked into the conduit through the smoke suction gap at the joint of the electric knife blade and the first suction head, and the undispersed operation smoke can be immediately sucked in a short distance. However, the vacuum suction device needs to be matched with a negative pressure suction device for use, and has the disadvantages of complex structure, high matching requirement and inconvenient use.

SUMMERY OF THE UTILITY MODEL

The smoke generated in the surgical operation using the high-frequency electrotome can possibly harm medical staff and patients in an operating room, and the harmful smoke is cleared away in time during the operation, so as to solve the problem, the utility model provides a smoke purifier for the laparoscopic surgery, which has the advantages of simple structure, convenient use and easy operation.

The technical scheme of the utility model is that: a smoke purifier for laparoscopic surgery comprises a shell, an air suction fan and a filtering device, wherein the front end of the shell is provided with an air suction head, the peripheral surface of the front end of the shell is provided with an air outlet, and the air suction fan and the filtering device are positioned between the air suction head and the air outlet. When the suction fan is used, the suction head is arranged near an operation position in a human body, the air outlet is also arranged in the human body, negative pressure is generated at the suction head when the suction fan operates, smoke generated in the operation is sucked, the smoke is adsorbed and filtered by the filter device under the action of pressure difference, and the treated clean air is discharged from the air outlet. The utility model discloses integrate all functional unit in the casing, the outward appearance is succinct, and compact structure need not to carry out numerous and diverse relevant supporting and arranges, need promptly to use convenient to use.

Preferably, the middle part of the shell is provided with a front partition plate along the cross section direction, the air suction fan and the filtering device are arranged on two sides of the front partition plate, the center of the front partition plate is provided with an air vent, an airflow cavity formed by the front partition plate, the shell and a rear partition plate in a surrounding mode is arranged between the front partition plate and the air outlet, the filtering device is fixed in the airflow cavity, and the outlet of the airflow cavity is located in the center of the rear partition plate. The partition panel before setting up only leaves the air vent as the passageway, can concentrate the circulation with inhaled smog, is convenient for carry out thorough filtration.

Preferably, the filter device is cylindrical and has a multilayer structure, the filter device sequentially comprises a filter cotton layer, a fiber layer and an activated carbon layer from outside to inside, one end of a central cavity of the filter device is closed, the other end of the central cavity of the filter device is open, the closed end of the filter device is abutted against bosses uniformly distributed around the vent holes of the front partition plate, the end face of the open end of the filter device is sealed with the rear partition plate, and the central cavity of the filter device is communicated with the outlet of the airflow cavity. When the filter device is used for filtering smoke, the smoke enters from the peripheral surface of the filter device, is adsorbed by the filter cotton layer and the activated carbon layer in sequence and then enters the central cavity of the filter device, and is discharged from the outlet of the airflow cavity. The structure can form a closed space, is favorable for directionally guiding airflow and thoroughly filters smoke.

Preferably, the boss is provided with a peripheral positioning step of the end face of the filter device. The end face peripheral positioning step can position the end face of the closed end of the filter device, and the filter device is fixed in the airflow cavity.

Preferably, the shell is of a split structure and comprises a shell body and a rear cover, the shell body is of a jacket structure and comprises an inner pipe body and an outer pipe body which are coaxial, the inner pipe body is fixedly arranged on the inner wall of the outer pipe body, an annular air return groove is formed between the inner pipe body and the outer pipe body, an air outlet radially penetrates through the outer pipe body, the rear cover is in threaded connection with the shell body, a rear partition plate is fixed on the rear cover, the rear end face of the inner pipe body is in sealed abutting contact with the rear partition plate, a filtering device center positioning insertion pipe is arranged at the center of the rear partition plate, and a plurality of air return holes corresponding to notches of the air return groove are formed in the rear partition plate. The central positioning insertion pipe of the filtering device is not only an outlet of the airflow cavity, but also a positioning structure, when the rear cover is screwed, the central positioning insertion pipe of the filtering device is inserted into the open end of the central cavity of the filtering device, so that the central positioning is provided for the filtering device, and the central cavity of the filtering device is communicated with the air outlet to form a smooth airflow path. The gas after harmless treatment by the filter device enters the air return groove through the air return hole, is guided back to the front end of the shell through the air return hole and the air return groove in the reverse direction and then returns to the human body through the air outlet so as to maintain the internal pressure balance of the human body. The rear cover can be conveniently taken out for necessary replacement or maintenance after being opened.

Preferably, the suction head is trumpet-shaped. The horn-shaped suction head is beneficial to absorbing and concentrating smoke.

Preferably, the shell is provided with a battery compartment and a control switch, and the control switch comprises a inching switch and a normally open switch. The utility model discloses use the battery as power, it is lower to supporting requirement to can select inching or continuous operation mode as required, it is very convenient to use.

The utility model has the advantages that:

remove harmful operation smog in time, eliminate the harm to medical personnel and disease. The utility model discloses can inhale the smog that the operation produced in the surgical operation that uses the high frequency electric sword, under the pressure differential effect, smog adsorbs the filtration through filter equipment, and the clean air after the innocent treatment is discharged from the gas outlet again, prevents that smog from constituting harm to operating room medical personnel and patient.

Simple structure, convenient use and easy operation. The utility model discloses integrate all functional unit in the casing, compact structure need not to carry out numerous and diverse relevant supporting and arranges, need promptly to use convenient to use.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of an internal structure of the present invention;

fig. 3 is a schematic structural diagram of the middle filter device of the present invention.

In the figure, 1-shell, 2-suction fan, 3-filter device, 4-suction head, 5-air outlet, 6-front partition plate, 7-filter cotton layer, 8-fiber layer, 9-activated carbon layer, 10-filter device center positioning insertion tube, 11-inching switch, 12-normally open switch, 13-air flow chamber, 14-rear cover, 15-shell body, 16-cross bracket, 17-micro motor, 18-rear partition plate, 19-boss, 20-vent hole, 21-air return hole and 22-air return groove.

Detailed Description

The present invention will be further described with reference to the following detailed description of the embodiments.

Example 1:

as shown in fig. 1, 2 and 3, a smoke purifier for laparoscopic surgery comprises a housing 1, an air suction fan 2 and a filtering device 3, wherein the front end of the housing 1 is provided with an air suction head 4, six annularly arranged air outlets 5 are arranged on the circumferential surface of the front end of the housing 1, the air suction head 4 is horn-shaped, the air suction fan 2 and the filtering device 3 are positioned between the air suction head 4 and the air outlets 5, the air suction fan 2 is close to the air suction head 4, and the filtering device 3 is close to the air outlets 5. The air suction fan 2 is fixedly connected to a driving shaft of a micro motor 17, the micro motor 17 is fixed on a cross-shaped support 16, and the cross-shaped support 16 is fixedly connected to the inner wall of the shell 1. The shell 1 is a split structure and comprises a shell body 15 and a rear cover 14, the shell body 15 is a jacket structure and comprises an inner tube body and an outer tube body which are coaxial, the inner tube body is fixedly arranged on the inner wall of the outer tube body, an annular air return groove 22 is formed between the inner tube body and the outer tube body, the front end of the air return groove 22 is closed, the rear end of the air return groove is open, an air outlet 5 radially penetrates through the outer tube body, the front end of the inner tube body is integrally connected with the outer tube body, the rear cover 14 is in threaded connection with the shell body 15, a rear partition plate 18 is fixed on the rear cover 14, a rubber pad is arranged on one surface, facing the inner tube body, of the rear partition plate 18, the rear end surface of the inner tube body is in sealed abutting contact with the rear partition plate 18, a central positioning insertion tube 10 of a filtering device is arranged in the center of the rear partition plate 18, six air return. Partition panel 6 before 1 middle part of casing is equipped with along the cross section direction, partition panel 6 both sides before 2 coaxial and the separation of the fan of breathing in and filter equipment 3, and preceding partition panel 6 center is equipped with air vent 20, is equipped with between preceding partition panel 6 and the gas outlet 5 by preceding partition panel 6, casing main part 15 and the airflow chamber 13 that the partition panel 18 encloses to close and form behind, and filter equipment 3 is fixed in airflow chamber 13, and filter equipment center location intubate 10 is the export of airflow chamber 13. The filter device 3 is cylindrical and has a multilayer structure, and comprises a filter cotton layer 7, a fiber layer 8 and an activated carbon layer 9 from outside to inside in sequence, wherein the fiber layer 8 is made of PET fibers or PP fibers. One end of a central cavity of the filtering device 3 is closed, the other end of the central cavity is open, the closed end of the filtering device 3 is abutted against four bosses 19 uniformly distributed around the vent holes of the front partition plate 6, the end face of the open end of the filtering device 3 is sealed with the rear partition plate 18, and the open end of the central cavity of the filtering device 3 is in embedded communication with an outlet of the airflow cavity 13, namely the central positioning insertion tube 10 of the filtering device. The boss 19 is provided with a positioning step on the periphery of the end face of the filter device 3, and the closed end of the filter device 3 is overhead and positioned by the boss 19. Be equipped with battery compartment and control switch on the casing 1, the battery compartment is isolated with the cavity in the casing 1, installs the seventh battery in the battery compartment, and control switch includes inching switch 11 and normally open switch 12.

When in use, the suction head 4 is arranged near the operation position in the human body, the air outlet 5 is also hidden in the human body, and the rest part of the shell 1 is exposed outside the human body and is controlled by an operation operator. When the air suction fan 2 operates, negative pressure is generated at the air suction head 4 to suck smoke generated in operation, under the action of pressure difference, the smoke enters from the peripheral surface of the filter device 3, is sequentially adsorbed by the filter cotton layer 7 and the activated carbon layer 9 and then enters the central cavity of the filter device 3, is discharged from the outlet of the airflow cavity 13, namely the central positioning insertion tube 10 of the filter device, completes harmless treatment, and finally, clean air is finally discharged from the air outlet 5 through the reverse guidance of the air return hole 21 and the air return groove 22 and returns to the human body.

Example 2:

and a button battery is arranged in the battery cabin. The rest is the same as example 1.

Claims

1. A smoke purifier for laparoscopic surgery is characterized by comprising a shell (1), an air suction fan (2) and a filtering device (3), wherein an air suction head (4) is arranged at the front end of the shell (1), an air outlet (5) is formed in the peripheral surface of the front end of the shell (1), and the air suction fan (2) and the filtering device (3) are located between the air suction head (4) and the air outlet (5).

2. The smoke purifier for laparoscopic surgery according to claim 1, wherein the middle of the housing (1) is provided with a front partition plate (6) along the cross section direction, the air suction fan (2) and the filter device (3) are separated at both sides of the front partition plate (6), the center of the front partition plate (6) is provided with a vent hole, an airflow cavity (13) enclosed by the front partition plate (6), the housing (1) and a rear partition plate (18) is arranged between the front partition plate (6) and the air outlet (5), the filter device (3) is fixed in the airflow cavity (13), and the outlet of the airflow cavity (13) is positioned at the center of the rear partition plate (18).

3. The smoke purifier for laparoscopic surgery as claimed in claim 2, wherein the filter device (3) is cylindrical and has a multi-layer structure, the filter cotton layer (7), the fiber layer (8) and the activated carbon layer (9) are sequentially arranged from outside to inside, one end of a central cavity of the filter device (3) is closed, the other end of the central cavity is open, the closed end of the filter device (3) abuts against bosses (19) uniformly distributed around the vent holes of the front partition plate (6), the end surface of the open end of the filter device (3) is sealed with the rear partition plate (18), and the central cavity of the filter device (3) is communicated with the outlet of the airflow cavity (13).

4. A smoke purifier for laparoscopic surgery according to claim 3, wherein the boss (19) is provided with a peripheral positioning step of the end face of the filter unit (3).

5. The smoke purifier for laparoscopic surgery as claimed in claim 2, wherein the housing (1) is a split structure, and comprises a housing body and a rear cover (14), the housing body is a jacket structure, and comprises an inner tube and an outer tube which are coaxial, the inner tube is fixedly arranged on the inner wall of the outer tube, an annular air return groove (22) is formed between the inner tube and the outer tube, the air outlet (5) radially penetrates through the outer tube, the rear cover (14) is connected with the housing body through a thread, the rear partition plate (18) is fixed on the rear cover (14), the rear end surface of the inner tube is in sealing contact with the rear partition plate (18), the center of the rear partition plate (18) is provided with a central positioning insertion tube (10) of the filtering device, and the rear partition plate (18) is further provided with a plurality of air return holes (21) corresponding to the notches of the air return groove (22).

6. Laparoscopic surgery smoke purifier according to claim 1, characterized in that the suction head (4) is trumpet-shaped.

7. A smoke purifier for laparoscopic surgery according to any one of claims 1 to 6, wherein the housing (1) is provided with a battery compartment and control switches including a jog switch (11) and a normally open switch (12).