CN102824658A - Suction head of suction apparatus with cutting function for endoscope - Google Patents

Abstract

The invention provides a suction head of a suction device with a cutting function for a cavity mirror, which includes a circular tube body and a suction port at the front end; a circular cutter is arranged in the circular tube body, and the front end of the cutter has a blade-like or tooth-like structure , the rear end is connected to the inner wall of the circular tube; the front end of the cutter faces the suction port, and the distance from the suction port is 2-5mm. The suction head of the present invention can cut through the soft tissue that blocks the passage of the tissue forceps through the cutter in the suction device, so that the tissue forceps can break through smoothly and easily, thus making the operation easier; at the same time, considering the efficiency and safety of the operation process, The suction head of the present invention ensures good cutting and suction effects at the same time through the organic combination of the structure and size of each part, and provides guarantee for operation safety.

Description

Suction head with cutting function suction for endoscope

technical field

The invention relates to a suction head of a suction device with a cutting function for a cavity mirror. the

Background technique

The aspirator is used to suck the contents of bleeding, exudate, pus, and chest viscera during the operation, so as to make the operation clear and reduce the chance of contamination. Suction devices are inseparable from the removal of accumulated blood or fluid during surgery, and the manipulation of the broken ends of ruptured blood vessels. the

Aspirators are also often used in laparoscopic surgery to cooperate with tissue dissociation and blood vessel dissociation, mainly to absorb blood oozing during tissue dissection. Tissue dissociation and blood vessel dissociation mainly use tissue forceps for blunt separation. When tissue forceps bypass certain important structures such as blood vessels and bronchi, they often encounter soft tissue resistance. Due to the limitations of laparoscopic surgery, only relatively large forces can be used. Forcibly breaking through often causes vascular or bronchial damage. If there is an instrument that can easily break through soft tissue with tissue forceps, it will make the operation process easier and safer. the

Contents of the invention

The object of the present invention is to provide a suction device for laparoscope which has both tissue cutting function and suction function. the

The invention provides a suction head of a suction device with a cutting function for a cavity mirror, which includes a circular tube body and a suction port at the front end; a circular cutter is arranged in the circular tube body, and the front end of the cutter has a blade-like or tooth-like structure , the rear end is connected to the inner wall of the circular tube; the front end of the cutter faces the suction port, and the distance from the suction port is 2-5mm. the

Wherein, the front end of the cutter is 3mm away from the suction port. the

Wherein, the angle between the side wall of the cutter and the wall of the circular tube body is 5-30°. the

Further, the front end of the cutter is a blade-shaped structure, and the angle between the side wall and the wall of the circular tube body is 5-15°. the

Wherein, the distance between the front end of the cutter and the inner wall of the circular tube is 0.5-1.5mm. the

Further, the distance between the front end of the cutter and the inner wall of the circular tube is 1mm. the

Wherein, at least two side holes are also provided on the circular pipe body. the

Further, the side holes are respectively located at the front and back of the cutter. the

The suction head of the present invention can cut through the soft tissue that blocks the passage of the tissue forceps through the cutter in the suction device, so that the tissue forceps can break through smoothly and easily, thereby making the operation easier; at the same time, considering the efficiency and safety of the operation process, The suction head of the present invention ensures good cutting and suction effects at the same time through the organic combination of the structure and size of each part, and provides guarantee for operation safety. the

Description of drawings

Fig. 1 structural representation of the present invention;

Among them, 1-circular tube body, 2-suction port, 3-cutter. the

Detailed ways

It can be known from Fig. 1 that the present invention is a suction head of a suction device for a laparoscopy with cutting function and suction function, including a circular tube body 1 and a suction port 2 at the front end; the circular tube body 1 has a circular ring Shaped cutter 3, the front end of cutter 3 has a blade-like or tooth-like structure, and the rear end is connected to the inner wall of the circular tube body 1; the front end of cutter 3 faces the suction port 2, and is 22-5mm away from the suction port. the

The distance between the front end of the cutter 3 and the suction port 2 is preferably 3mm. the

Wherein, the angle between the side wall of the cutter 3 and the tube wall of the circular tube body 1 is 5-30°. the

The front end of the cutter 3 is a blade-shaped structure, and the angle between the side wall and the wall of the circular tube body 1 is preferably 5-15°. the

Wherein, the distance between the front end of the cutter 3 and the inner wall of the circular tube body 1 is 0.5-1.5mm. the

The distance between the front end of the cutter 3 and the inner wall of the circular tubular body 1 is preferably 1mm. the

Wherein, the circular pipe body 1 is further provided with at least two side holes. the

The side holes are respectively located at the front and back of the cutter 3 . the

In laparoscopic surgery, when tissue forceps are used to free important structures such as blood vessels and bronchi, this cutting aspirator can be used to suck away the oozing blood, and the tissue forceps can be docked with the head of the cutting aspirator and inserted properly. The cutter cuts the soft tissue that blocks the passage of the tissue forceps, so that the tissue forceps can break through smoothly and easily, thus making the operation easy and safe. the

In order to ensure the safety of the operation, the present invention arranges the cutter inside the suction head to avoid direct damage to internal tissues, blood vessels, etc.; however, there are some technical obstacles to placing the cutter inside the suction device. The header is set as follows:

(1) In the research of the present invention, it is found that when the distance between the cutter and the suction port is too long, the pushed-in tissue cannot be cut; if the distance is too short, the accidentally inhaled soft tissue will be accidentally injured, causing unnecessary damage to the patient. damage. Therefore, the distance between the front end of the cutter and the suction port is set to 2-5 mm, and preferably 3 mm. the

(2) In order to enhance the cutting effect of the present invention on soft tissue, the cutter is set at a certain elevation angle, so as to achieve extrusion cutting of the pushed soft tissue; however, if the elevation angle of the cutter is too large, its cutting effect will be greatly reduced ; At the same time, it was found in the research that the distance between the front end of the cutter and the circular tube body is too small to effectively cut the soft tissue; when the distance is too large, the cutter will hinder the suction function of the suction device due to the existence of the elevation angle of the cutter , unable to effectively absorb the contents of bleeding, exudate, pus, and chest viscera during the operation, which will seriously affect the safety of the operation. Therefore, comprehensively considering the cutting effect and the suction effect, it is set in the present invention that the distance between the front end of the cutter and the inner wall of the circular pipe is 0.5-1.5mm, preferably 1mm; the distance between the cutter and the circular pipe is 5-30mm. ° angle, preferably 5-10 °. the

(3) In order to ensure the suction function of the suction head, side holes are also provided on the circular tube body to absorb blood seepage from both sides; in the present invention, since the cutter exists inside the suction head and has a certain elevation angle, this It may also affect the suction effect to a certain extent. Therefore, in order to further ensure the suction function, the present invention provides side holes at the front and back of the cutter. the

(4) In order to ensure the cutting effect, the open end of the cutter in the present invention is preferably a blade-shaped structure. the

In summary, the suction head of the present invention can cut through the soft tissue that blocks the passage of the tissue forceps through the cutter in the suction device, so that the tissue forceps can break through smoothly and easily, thereby making the operation easier; at the same time, considering the efficiency of the operation process And safety issues, the suction head of the present invention ensures good cutting and suction effects at the same time through the organic combination of the structure and size of each part, and provides a guarantee for surgical safety. the

Claims (8)

1. A suction head for a suction device with a cutting function for a laparoscope, characterized in that: it includes a circular tube body (1) and a suction port (2) at the front end; the circular tube body (1) has a circular cutting Cutter (3), the front end of the cutter (3) has a blade-like or tooth-like structure, and the rear end is connected to the inner wall of the circular tube (1); the front end of the cutter (3) faces the suction port (2), and the distance from the suction port (2) ) 2-5mm. 2. The suction head of the suction device with cutting function for endoscope according to claim 1, characterized in that the distance from the front end of the cutter (3) to the suction port (2) is 3 mm. 3. The suction head of the suction device with cutting function for endoscopy according to claim 1, characterized in that: the side wall of the cutter (3) and the tube wall of the circular tube body (1) are at an angle of 5-30° angle. 4. The suction head of the suction device with cutting function for endoscopy according to claim 3, characterized in that: the front end of the cutter (3) is a blade-shaped structure, and the side wall is in contact with the wall of the circular tube body (1). The angle between them is 5-15°. 5. The suction head of the suction device with cutting function for endoscope according to claim 1, characterized in that the distance between the front end of the cutter (3) and the inner wall of the circular tube (1) is 0.5-1.5 mm. 6. The suction head of the suction device with cutting function for endoscope according to claim 5, characterized in that the distance between the front end of the cutter (3) and the inner wall of the circular tube (1) is 1 mm. 7. The suction head of the suction device with cutting function for endoscope according to claim 1, characterized in that: the circular tube body (1) is further provided with at least two side holes. 8. The suction head of the suction device with cutting function for endoscope according to claim 7, characterized in that: the side holes are respectively located at the front and back of the cutter (3).

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