CN207679505U - A kind of puncture antral expander - Google Patents

Abstract

The utility model relates to a maxillary sinus puncture dilator. It includes an outer sleeve and a puncture needle core. The inside of the outer sleeve is provided with a needle core channel for placing the puncture needle core. The tail end of the outer sleeve is provided with a hose interface. An expansion balloon is provided, and an expansion channel is provided in the side wall of the outer sleeve, one end of the expansion channel communicates with the inside of the expansion bladder, and the other end of the expansion channel is located at the flexible tube at the tail end of the outer sleeve. In the interface, the hose interface is connected with the inflation valve or the liquid injector through the hose. The expansion capsule on the overtube described in the utility model realizes fenestration and expansion of the medial wall of the maxillary sinus under minimally invasive conditions, which can satisfy the removal of maxillary sinus lesions under direct vision of the endoscope. The natural opening of the maxillary sinus combined with the radical maxillary sinus puncture of the lower nasal passage, the utility model has the advantages of small surgical trauma, short time, and thorough removal of lesions under direct vision.

Description

A maxillary sinus puncture dilator

technical field

The utility model relates to a puncture instrument for surgery, in particular to a maxillary sinus puncture dilator.

Background technique

The maxillary sinus is a bony cavity located in the maxilla on both sides of the nasal cavity, with a natural opening leading to the middle meatus of the nasal cavity.

At present, maxillary sinus lesions such as maxillary sinus cysts, maxillary sinus polyps, maxillary sinus fungi and foreign bodies, etc. cannot be completely removed through the natural opening of the maxillary sinus and simple lower nasal passage puncture. Radical maxillary sinus resection by approach involves large trauma, time-consuming and labor-intensive operations, such as turning up the upper lip on the affected side and cutting open the bone in the anterior wall of the maxillary sinus.

Contents of the invention

The purpose of the utility model is to overcome the defects in the prior art, and provide a maxillary sinus puncture dilator which is simple in structure, practical, and can completely remove maxillary sinus lesions on the premise of relatively minimally invasive.

The utility model is achieved in the following way: a maxillary sinus puncture dilator, comprising an outer sleeve and a puncture needle core, the inside of the outer sleeve is provided with a needle core channel for placing the puncture needle core, characterized in that: the outer sleeve The tail end of the outer tube is provided with a hose interface, the front side wall of the outer sleeve is provided with an expansion capsule, the side wall of the outer sleeve is provided with an expansion channel, and one end of the expansion channel is connected to the expansion bladder Internal communication, the other end of the expansion pipe is located in the hose interface at the tail end of the outer sleeve, and the hose interface is connected with the inflation valve or the liquid injector through the hose.

The distance between the front end of the expansion balloon and the front end of the overtube is 1.2-1.5 cm, and the expansion balloon is a cylinder with a diameter of 1-1.5 cm after expansion, and the length of the expansion balloon is 1-2 cm.

After the puncture needle core is placed in the needle core channel, the front end of the puncture needle core protrudes 0.5-1 cm from the front end of the outer cannula. There are 1 to 6 air holes communicating with the expansion channel on the wall of the overtube in the expansion balloon.

The beneficial effect of the utility model is that: the expansion capsule on the outer sleeve realizes fenestration and expansion of the medial wall of the maxillary sinus under minimally invasive conditions, which can satisfy the removal of maxillary sinus lesions under direct vision of the endoscope. The Ke Lu type approach or the natural opening of the maxillary sinus combined with the lower nasal passage puncture maxillary sinus radical surgery, the utility model has the advantages of small surgical trauma, short time, and complete removal of lesions under direct vision.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic structural view of the outer casing of the present invention.

Among them: 1. Outer casing; 2. Puncture needle core; 3. Needle core channel; 4. Hose interface; 5. Expansion capsule; 6. Expansion channel; 7. Stoma; 8. Hose;

Detailed ways

According to Fig. 1, Fig. 2, the utility model comprises outer casing 1, puncture needle stylet 2, and the interior of described outer casing 1 is provided with the needle core channel 3 that is used to place puncture needle stylet 2, and the tail end of described outer casing 1 is provided with There is a hose interface 4, and the front side wall of the outer tube 1 is provided with an expansion capsule 5, the expansion capsule 5 is an air bag or a water bag, and the side wall of the outer tube 1 is provided with an expansion channel 6 One end of the expansion channel 6 communicates with the inside of the expansion bladder 5 through 1 to 6 air holes 7 arranged on the wall of the outer tube 1 in the expansion bladder 5 . The other end of the expansion pipe 6 is located in the hose interface 4 at the tail end of the outer sleeve 1 , and the hose interface 4 is connected with the inflation valve 9 or the injector through the hose 8 . The front end of the expansion capsule 5 is 1.2 to 1.5 cm away from the front end of the overtube 1, and the expansion capsule 5 is a cylinder with a diameter of 1 to 1.5 cm after expansion, and the length of the expansion capsule 5 is 1~2cm. After the puncture needle core 2 is inserted into the needle core channel 3, the front end of the puncture needle core 2 protrudes from the front end of the outer sleeve 1 by 0.5-1 cm.

When the utility model is used, the puncture needle core 2 is put into the overtube 1, and after puncturing from the lateral wall of the patient's lower nasal passage into the maxillary sinus cavity, the puncture needle core 2 is pulled out, and the nasal endoscope enters the overtube 1 to confirm the overtube 1 Enter the maxillary sinus cavity, inflate or inject water into the expansion capsule 5 at the front part of the overtube 1 to expand the original puncture port, form a window on the medial wall of the inferior nasal passage and maxillary sinus, empty the expansion capsule 5, take out the overtube 1 and pass through the maxillary The fenestration channel on the medial wall of the sinus was used to completely remove the maxillary sinus lesions under direct vision of the nasal endoscope.

The utility model has the advantages of simple structure and practicality, small surgical trauma, convenient use, and is suitable for rapid and thorough removal of various maxillary sinus lesions such as polyps, fungi, cysts, and foreign bodies under direct vision, improves work efficiency, and reduces pain of patients.

Claims (4)

1. A maxillary sinus puncture dilator, comprising an outer sleeve and a puncture needle stylet, the inside of the outer sleeve is provided with a needle core channel for placing the puncture needle stylet, it is characterized in that: the tail end of the outer sleeve is provided with a soft Tube interface, the front side wall of the outer sleeve is provided with an expansion capsule, the side wall of the outer sleeve is provided with an expansion channel, one end of the expansion channel communicates with the inside of the expansion bladder, and the expansion The other end of the channel is located in the hose interface at the tail end of the outer casing, and the hose interface is connected with the inflation valve or the liquid injector through the hose. 2. The maxillary sinus puncture dilator according to claim 1, characterized in that: the front end of the expansion capsule is 1.2 to 1.5 cm away from the front end of the outer cannula, and the diameter of the expansion capsule is 1 cm after expansion. ~1.5cm cylinder, the length of the expansion balloon is 1~2cm. 3. The maxillary sinus puncture dilator according to claim 1, characterized in that: after the puncture needle core is inserted into the needle core channel, the front end of the puncture needle core protrudes from the front end of the outer cannula by 0.5-1 cm . 4. The maxillary sinus puncture dilator according to claim 1, characterized in that: 1 to 6 air holes communicating with the expansion channel are provided on the wall of the outer tube in the expansion capsule.