CN215351046U

CN215351046U - Porous anti-backflow nasal cavity suction tube

Info

Publication number: CN215351046U
Application number: CN202121408974.5U
Authority: CN
Inventors: 李志勇; 陈雄; 肖伟
Original assignee: Zhongnan Hospital of Wuhan University
Current assignee: Zhongnan Hospital of Wuhan University
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-12-31
Anticipated expiration: 2031-06-24

Abstract

The utility model provides a porous anti-reflux formula nasal cavity attracts pipe, includes from top to bottom suction pipe, anti-reflux mechanism, handheld pipe and the attraction body that communicates in proper order, the outside cover of anti-reflux mechanism is equipped with detachable guard plate, anti-reflux mechanism includes anti-reflux pipe, anti-reflux body and anticorrosive coating, anti-reflux body sets up in anti-reflux pipe, the anti-reflux pipe inner wall sets up the anticorrosive coating, set up the pressure relief vent on the handheld pipe, attract pipe tip lateral wall to set up a plurality of attraction holes. The protective plate has the function of preventing liquid from flowing back, can be used for blocking objects in the nasal cavity during operation, avoids the condition of spraying, improves the protective effect, can be detached when not in use, can form a flexible elastic surface by the arranged protective gasket, improves the comfort, can play a role in reducing pressure through the plurality of suction holes, can also suck accumulated mucosal surface blood, and can also safely play a role in sucking when the protective plate is blindly inserted into the nasal cavity even under the condition of no nose endoscope illumination.

Description

Porous anti-backflow nasal cavity suction tube

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a porous backflow-preventing nasal cavity suction tube.

Background

The nasal cavity endoscopic surgery is a nasal sinus surgery carried out by utilizing a Hopkins endoscope with high resolution and changeable visual angle, so that the nasal cavity and the nasal sinuses, especially the deep part surgery can be carried out under direct vision. And the cleaning of focus in some caves and fissures is facilitated, and the ventilation and drainage functions of the paranasal sinuses can be recovered. The operation tissue damage is less under the direct vision, the bleeding is less, the visual field is clear in the operation, the occurrence of some complications can be avoided, however, the visual field is narrow in the conventional nasal and sinus operations and the nasal endoscope operation, the requirement on the cleanness in the visual field is extremely high, and blood, secretion and other liquid can not be accumulated, so that the requirement on the suction tube is high, most nasal suction tubes used in the current clinical nasal endoscope operation are single-hole suction tubes or single-hole suction tubes with pressure reducing holes at the tail, and the problems exist in the practical use.

The existing nasal cavity suction tube adopts single-hole suction, the soft mucous membrane surface which is easy to deform is easily adsorbed in the nasal cavity to block the tube orifice, the visual field of the operation is narrow due to the nasal endoscope, the tube orifice part cannot be peered when an assistant assists, the suction effect is poor, the suction near the tube orifice is large when the single-hole suction is carried out, the mucous membrane is easily damaged, when hematocele is more in the nasal cavity, the single-hole suction effect is poor, particularly, when the hematocele is encountered, the blood clot cannot be well sucked, the visual field is unfavorable, the device is not convenient to detach and clean and is difficult, and the backflow prevention function is not available, so that the use is inconvenient.

Disclosure of Invention

The utility model aims to provide a porous backflow-preventing nasal cavity suction tube which has the function of preventing liquid backflow, can reduce the pressure on nasal cavity mucosa, avoids damage and has a good suction effect.

In order to achieve the purpose, the porous backflow-preventing type nasal cavity suction tube comprises a suction port tube, a backflow-preventing mechanism, a handheld tube and a suction tube body which are sequentially communicated from top to bottom, wherein a detachable protection plate is sleeved outside the backflow-preventing mechanism, the backflow-preventing mechanism comprises a backflow-preventing tube, a backflow-preventing body and an anti-corrosion layer, the backflow-preventing body is arranged in the backflow-preventing tube, the inner wall of the backflow-preventing tube is provided with the anti-corrosion layer, the handheld tube is provided with pressure reducing holes, and the end side wall of the suction tube body is provided with a plurality of suction holes.

In the above technical scheme, the backflow-preventing body comprises a sealing valve body, a spring and a telescopic pipe, the upper end of the sealing valve body is fixedly connected with the telescopic pipe, the side wall of the telescopic pipe is provided with a lateral hole, one end of the spring is fixedly connected with the center of the upper end face of the sealing valve body, the other end of the spring is fixedly connected with the inner wall of the top of the backflow-preventing pipe, and the top of the backflow-preventing pipe is provided with a communicating hole.

In the above technical scheme, the inner middle section of the backflow prevention pipe is provided with a clamping hole, and the inner diameter of the clamping hole is smaller than the outer diameter of the sealing valve body.

In the technical scheme, the length of the telescopic pipe is smaller than the distance between the clamping hole of the backflow prevention pipe and the inner wall of the top of the backflow prevention pipe.

In the technical scheme, the protection plate is in a circular ring shape, the inner ring is provided with the elastic clamping ring, the outer wall of the backflow prevention mechanism is provided with the clamping groove, and the clamping ring is clamped with the clamping groove in the outer wall of the backflow prevention mechanism.

In the technical scheme, the outer wall of the protection plate is pasted with the protection gasket, and the protection gasket is matched with the external dimension of the protection plate.

In the above technical scheme, the suction pipe body comprises a straight pipe body and a bent pipe body which are fixedly connected, the outlet end of the straight pipe body is connected with the inlet end of the handheld pipe, the side wall of the inlet end part of the bent pipe body is provided with a plurality of circular or oval suction holes, and the inlet of the bent pipe body is a blunt port.

In the technical scheme, the inlet end of the suction port pipe is connected with the outlet end of the backflow prevention mechanism through the backflow connector.

In the technical scheme, the two ends of the backflow connector are both provided with threads, and the two ends of the backflow connector are respectively in threaded connection with the inlet end of the suction pipe and the outlet end of the backflow prevention mechanism.

In the above technical scheme, the inner wall of the suction pipe body is smooth.

The utility model has the beneficial effects that:

1. the inner wall of the suction pipe body is smooth, so that liquid can flow out conveniently, the flowing efficiency is improved, the arranged hand-held pipe is held when the operation is convenient, the backflow preventing mechanism has the backflow preventing function, so that the liquid backflow preventing condition is avoided, the anti-corrosion layer can effectively protect the inner wall of the backflow preventing pipe, and the situation that the backflow preventing pipe is corroded is avoided.

2. The sealing valve body and the clamping hole can be separated and closed, so that the opening and closing of a passage in the backflow preventing pipe are realized, and the position adjustment and limitation of the sealing valve body and the telescopic pipe can be realized by the spring; the lateral holes are capable of passing a liquid.

3. The guard plate can carry out the separation to the inside object of nasal cavity when the operation, avoids the spun condition, improves the safeguard effect, can dismantle when not using, conveniently observes, and the protection gasket of setting can let the guard plate form flexible elastic surface, improves the travelling comfort.

4. The plurality of suction holes can not only reduce the pressure, but also suck the blood on the mucous membrane surface, and can safely play a role in sucking even if the suction holes are inserted into the nasal cavity blindly without the illumination of the nasal endoscope.

Drawings

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

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic structural view of the backflow prevention mechanism of the present invention;

FIG. 4 is a schematic structural view of the anti-backflow mechanism in a use state when a spring is compressed;

in the figure: 1-suction inlet pipe, 2-backflow prevention mechanism, 21-backflow prevention pipe, 22-backflow prevention body, 23-anticorrosive coating, 24-sealing valve body, 25-spring, 26-telescopic pipe, 27-lateral hole, 28-intercommunicating hole, 29-clamping hole, 3-handheld pipe, 31-pressure reducing hole, 4-suction pipe body, 41-straight pipe body, 42-bent pipe body, 43-suction hole, 5-protection plate, 6-protection gasket, 7-clamping ring, 8-clamping groove and 9-backflow connecting body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are only used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the present invention. In the description of the utility model, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 to 4, a porous anti-reflux type nasal cavity suction tube, including suction pipe 1, anti-reflux mechanism 2, handheld pipe 3 and the suction body 4 that from top to bottom communicate in proper order, the outside cover of anti-reflux mechanism 2 is equipped with detachable guard plate 5, anti-reflux mechanism 2 includes anti-reflux pipe 21, anti-reflux body 22 and anticorrosive coating 23, anti-reflux body 22 sets up in anti-reflux pipe 21, anti-reflux pipe 21 inner wall sets up anticorrosive coating 23, set up pressure relief hole 31 on handheld pipe 3, suction body 4 tip lateral wall sets up a plurality of suction holes 43. Anticorrosive coating 23 has the anticorrosive effect, and the pressure release hole 31 on the handheld pipe 3 can be pressed with the finger, when pressing pressure release hole 31, can carry out decompression processing, when loosening pressure release hole 31, can attract the operation according to original pressure, can operate according to actual operation condition is nimble.

The anti-backflow body 22 comprises a sealing valve body 24, a spring 25 and an extension tube 26, the upper end of the sealing valve body 24 is fixedly connected with the extension tube 26, the side wall of the extension tube 26 is provided with a lateral hole 27, one end of the spring 25 is fixedly connected with the center of the upper end face of the sealing valve body 24, the other end of the spring is fixedly connected with the inner wall of the top of the anti-backflow tube 21, and the top of the anti-backflow tube 21 is provided with a communicating hole 28. The middle section in the anti-backflow pipe 21 is provided with a clamping hole 29, and the inner diameter of the clamping hole 29 is smaller than the outer diameter of the sealing valve body 24. As shown in fig. 4, when the spring 25 is retracted by the suction of the negative pressure, the sealing valve 24 and the extension tube 26 are driven to move upward, at this time, the sealing valve 24 is separated from the locking hole 29, the pipe passage in the anti-return pipe 21 is opened, and the liquid can flow into the communication hole 28 formed at the top of the anti-return pipe 21 through the locking hole 29 and the lateral hole 27 on the side wall of the extension tube 26; as shown in fig. 3, when the negative pressure is stopped, the spring 25 rebounds without external force to drive the sealing valve body 24 and the extension tube 26 to move downward, and when the sealing valve body 24 contacts with the locking hole 29, the sealing valve body 24 cannot move downward, so that the pipeline passage in the backflow preventing pipe 21 is closed and liquid cannot pass through.

The length of the extension tube 26 is smaller than the distance between the locking hole 29 of the backflow preventing pipe 21 and the top inner wall of the backflow preventing pipe 21.

The protection plate 5 is circular, and the inner circle is provided with

elasticity rand

7, and 2 outer walls of anti-return mechanism set up draw-in groove 8, rand 7 and the draw-in groove 8 joint of 2 outer walls of anti-return mechanism. And a protective gasket 6 is adhered to the outer wall of the protective plate 5, and the protective gasket 6 is matched with the outer dimension of the protective plate 5. The guard plate 5 that sets up can carry out the separation to the inside object of nasal cavity when the operation, avoids the spun condition, improves the safeguard effect, can dismantle when not using, conveniently observes, and the protection of setting is filled up and can be let 5 formation flexible elastic surfaces of guard plate, improves the travelling comfort.

The suction pipe body 4 comprises a straight pipe body 41 and a bent pipe body 42 which are fixedly connected, the outlet end of the straight pipe body 41 is connected with the inlet end of the handheld pipe 3, the side wall of the inlet end part of the bent pipe body 42 is provided with a plurality of circular or oval suction holes 43, and the inlet of the bent pipe body 42 is a blunt port. The plurality of suction holes 43 can not only reduce the pressure, but also suck the blood on the mucous membrane surface, and can safely play a role in suction even if the nasal cavity is blindly inserted into the nasal cavity without the illumination of the nasal endoscope; the entrance of the bent tube 42 is blunt, which can avoid damaging the mucosa when entering the nasal cavity.

The inlet end of the suction pipe 1 is connected with the outlet end of the backflow prevention mechanism 2 through a backflow connector 9.

Both ends of the backflow connector 9 are provided with threads, and both ends of the backflow connector 9 are respectively in threaded connection with the inlet end of the suction pipe 1 and the outlet end of the backflow prevention mechanism 2.

The inner wall of the suction tube body 4 is smooth. The smooth inner wall can facilitate the outflow of liquid, thereby improving the flowing efficiency.

The using method of the utility model comprises the following steps:

when in use, the suction tube 1 is connected with a negative pressure suction apparatus, the negative pressure suction apparatus applies acting force to the suction tube 1, the front end of the suction tube body 4 of the utility model is inserted into the nasal cavity, secretions or epistaxis in the nasal cavity are sucked into the suction tube body 4 under the action of negative pressure, then the suction tube body is sucked into the hand-held tube 3 and the backflow prevention mechanism 2, under the action of negative pressure, the spring 25 in the backflow prevention body 22 is compressed to drive the sealing valve body 24 and the telescopic tube 26 to move upwards simultaneously until the telescopic tube 26 is contacted with the inner wall of the top of the backflow prevention tube 21, at the moment, the clamping hole 29 in the backflow prevention tube 21 is opened, liquid can flow into the telescopic tube 26 through the clamping hole 29 and the lateral hole 27 on the side wall of the telescopic tube 26, then flows into the backflow connection body 9 from the outlet end of the backflow prevention mechanism 2 after passing through the communicating hole 28 formed on the top of the backflow prevention tube 21, and then enters the suction tube 1 through the backflow connection body 9, finally flows to a waste liquid recovery device; when the liquid is completely pumped and the negative pressure is stopped, the spring 25 in the anti-backflow body 22 rebounds to drive the sealing valve body 24 and the telescopic pipe 26 to move downwards simultaneously, the sealing valve body 24 is in contact with the clamping hole 29 to block the passage in the anti-backflow pipe 21, so that the residual liquid cannot flow back into the suction pipe body 4 and enter the nasal cavity of the patient again.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides a porous anti-reflux formula nasal cavity attracts pipe which characterized in that: including the suction pipe, anti-return mechanism, handheld pipe and the attraction body that from top to bottom communicate in proper order, the outside cover of anti-return mechanism is equipped with detachable guard plate, anti-return mechanism includes anti-return pipe, anti-return body and anticorrosive coating, anti-return body sets up in anti-return pipe, the anti-return pipe inner wall sets up the anticorrosive coating, set up the pressure-relief vent on the handheld pipe, attract pipe end of body lateral wall to set up a plurality of attraction holes.

2. The porous backflow-preventing nasal suction tube according to claim 1, wherein: the anti-backflow body comprises a sealing valve body, a spring and a telescopic pipe, the upper end of the sealing valve body is fixedly connected with the telescopic pipe, a lateral hole is formed in the side wall of the telescopic pipe, one end of the spring is fixedly connected with the center of the upper end face of the sealing valve body, the other end of the spring is fixedly connected with the inner wall of the top of the anti-backflow pipe, and a communicating hole is formed in the top of the anti-backflow pipe.

3. The porous backflow-preventing nasal suction tube according to claim 1, wherein: and a clamping hole is formed in the middle section of the inner part of the backflow preventing pipe, and the inner diameter of the clamping hole is smaller than the outer diameter of the sealing valve body.

4. The porous backflow-preventing nasal suction tube according to claim 2, wherein: the length of the telescopic pipe is smaller than the distance between the clamping hole of the backflow prevention pipe and the inner wall of the top of the backflow prevention pipe.

5. The porous backflow-preventing nasal suction tube according to claim 1, wherein: the guard plate is the ring form, and the inner circle is provided with elasticity rand, and anti-return mechanism outer wall sets up the draw-in groove, the rand and the draw-in groove joint of anti-return mechanism outer wall.

6. The porous backflow-preventing nasal suction tube according to claim 5, wherein: the outer wall of the protection plate is pasted with a protection gasket, and the protection gasket is matched with the outer dimension of the protection plate.

7. The porous backflow-preventing nasal suction tube according to claim 1, wherein: the suction pipe body comprises a straight pipe body and a bent pipe body which are fixedly connected, the outlet end of the straight pipe body is connected with the inlet end of the handheld pipe, the side wall of the inlet end of the bent pipe body is provided with a plurality of circular or oval suction holes, and the inlet of the bent pipe body is a blunt port.

8. The porous backflow-preventing nasal suction tube according to claim 1, wherein: the inlet end of the suction pipe is connected with the outlet end of the backflow prevention mechanism through a backflow connector.

9. The porous backflow-preventing nasal suction tube according to claim 8, wherein: and both ends of the backflow connector are provided with threads, and both ends of the backflow connector are respectively in threaded connection with the inlet end of the suction pipe and the outlet end of the backflow prevention mechanism.

10. The porous backflow-preventing nasal suction tube according to claim 1, wherein: the inner wall of the suction pipe body is smooth.