CN211024744U

CN211024744U - Medicine feeder through nose and throat

Info

Publication number: CN211024744U
Application number: CN201921678756.6U
Authority: CN
Inventors: 王洪明; 欧阳文宇
Original assignee: First Hospital of China Medical University
Current assignee: First Hospital of China Medical University
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-07-17
Anticipated expiration: 2029-10-09

Abstract

The utility model discloses a intranasal throat ware of dosing belongs to medical instrument technical field, including injector and tractor, the injector is including pushing away an injection section of thick bamboo, it has the open chamber of pushing of one end to push away an injection section of thick bamboo, it has the push piston to push away intracavity slidable mounting, the tip of pushing away an injection section of thick bamboo is equipped with the intercommunication and pushes away the end of giving medicine in chamber, it connects the preflex nasal canal to go out the end of giving medicine, the preflex nasal canal has the silk guide chamber that each other does not communicate and the chamber of giving medicine, it connects out the end of giving medicine to give medicine the chamber, the silk guide intracavity is equipped with the seal wire, the tractor is including pulling a section of thick bamboo, it all has the open chamber and the guide chamber of pulling of tip to pull a section of thick bamboo, it is the same with the uncovered direction in guide chamber, it has the traction ring to pull. The utility model provides a present locking device structure complicated, with high costs and the insecure technical problem of performance, the wide application is in the anesthesia of throat.

Description

Medicine feeder through nose and throat

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a intranasal throat ware of dosing.

Background

The examination and treatment of the laryngopharynx and the laryngeal cavity are diagnosis and treatment items of daily work of doctors in the department of otorhinolaryngology, and the examination quantity is large due to high morbidity. Because the positions of the laryngopharynx and the laryngeal cavity are deep, the sensory nerve endings of the mucous membrane are rich, and the pharyngeal reflex is sensitive, the doctor in the department of otorhinolaryngology brings certain difficulty to the examination and treatment of the part, and the patient who sees a doctor is very painful. At present, most of the throat anesthesia methods used in clinical practice are oral administration, the throat cavity is in a curved irregular pipeline shape, and active tongue body movement caused by stress factors of patients in oral administration often enables the lower pharyngeal cavity of the patients to be closed, and medicines cannot reach a target area, so that young doctors and nursing staff without system training are difficult to master the surface anesthesia technology of the lower pharynx and the throat cavity. The dicaine is a common anesthetic, has high toxicity, but has good mucosal anesthesia effect, is commonly used for surface anesthesia of oral and pharyngeal local mucosa at present, and can remarkably relieve pharyngeal discomfort and pain of patients. However, because the position of the laryngopharynx and the laryngeal cavity is deep, the administration is difficult, the dosage is often required to be increased when the medicine does not reach the target area, the patient to be detected is exposed to potential medicine risks due to the increased dosage, and the problem that how to ensure the medicine reaches the target area is troubled for young otolaryngologists and nursing staff.

Therefore, there is still a need for research and improvement of the administration device through the nose and throat in the technical field of medical devices, which is a research focus and emphasis in the technical field of medical devices at present, and is the starting point of the present invention.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model discloses the technical problem that solve is: provides a medicine feeder through the nose and the throat, which solves the technical problems that the prior oral administration for the throat is difficult to narcotize and the medicine dosage is difficult to accurately control.

In order to solve the technical problem, the technical scheme of the utility model is that: a transnasal laryngeal administration device comprises an injector and a retractor, wherein the injector comprises an injection cylinder, the injection cylinder is provided with an injection cavity with one open end, an injection piston is arranged in the injection cavity in a sliding way, the end part of the injection cylinder is provided with a medicine outlet end communicated with the injection cavity, the medicine outlet end is connected with a pre-bent nasal tube, the pre-bent nasal tube is provided with a guide wire cavity and a drug delivery cavity which are not communicated with each other, the drug delivery cavity is connected with the drug outlet end, the guide wire cavity is internally provided with a guide wire, the tractor comprises traction cylinders, the traction cylinders are respectively provided with a traction cavity with an open end and a guide cavity, the opening directions of the traction cavity and the guide cavity are the same, a traction ring is arranged in the traction cavity in a sliding way, a flexible cable is arranged in the guide cavity, one end of the flexible cable is fixedly arranged on the traction ring, and the other end of the flexible cable penetrates through the traction cavity and is fixedly connected with the guide wire.

As an improvement, the traction barrel and the injection barrel are fixedly arranged together.

As a further improvement, the pre-bent nasal tube is a silicone tube.

As a further improvement, the pre-bent nose tube is provided with a straight line section and a bending section which are integrally arranged, and the bending section and the straight line section form an included angle of 90 degrees in a natural state.

As a further improvement, the end part of the pre-bending nasal tube is provided with a plurality of pesticide spraying holes, and the pesticide spraying holes are communicated with the pesticide feeding cavity.

As a further improvement, the traction ring is connected with a push plate through a rigid connecting rod, the push plate corresponds to the position of the pushing piston, and the length of the rigid connecting rod is greater than that of the pushing piston.

As a further improvement, the end part of the rigid connecting rod is provided with a thread section, the push plate is provided with a through hole matched with the thread section, and the upper side and the lower side of the push plate are respectively provided with a locking nut matched with the thread section.

After the technical scheme is adopted, the beneficial effects of the utility model are that:

the utility model provides a intranasal throat ware of dosing enters into the position of applying medicine from the nasal cavity, has avoided the oral administration to make the medicine can't reach the target area because of the tongue body motion of the initiative that the patient nervous factor leads to the normal anatomical structure of pre-bending nasal canal suitable nasopharynx to oropharynx can alleviate the misery of patient when dosing, also makes the process of dosing accurate, and the medicine can accurately reach the target area. The embodiment of the utility model provides a compare with peroral administration, easy operation, it is accurate, the technique is mastered easily, improves clinical work efficiency, has reduced the degree of difficulty of giving medicine to the poor free of charge, and is widely used when being convenient for the anesthesia of throat.

Because the end part of the pre-bent nasal tube is provided with the plurality of spraying holes, liquid medicine can be sprayed in a mist shape when being applied, on one hand, the dosage of the medicine is reduced, and on the other hand, the medicine can be uniformly applied to the throat.

Because the traction ring is connected with the push plate through the rigid connecting rod, the relation between the exit length of the guide wire and the drug application amount can be adjusted through the locking nut, and the requirements of different dosages of different drugs are met.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the range which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

FIG. 1 is a view showing the insertion state of a transnasal laryngeal applicator according to an embodiment of the present invention;

FIG. 2 is a view showing the administration state of the administration device through the nose and throat according to the embodiment of the present invention;

in the figure: 1. the injection device comprises an injection cylinder 101, an injection cavity 2, an injection piston 3, a medicine outlet end 4, a traction cylinder 401, a traction cavity 402, a guide cavity 5, a traction ring 6, a flexible cable 7, a pre-bending nasal tube 701, a medicine feeding cavity 702, a medicine spraying hole 703, a wire guiding cavity 8, a guide wire 9, a rigid connecting rod 901, a thread section 10, a push plate 11 and a locking nut.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and fig. 2, a transnasal administration device comprises an injector and a retractor, the injector comprises an injector 1, the injector 1 has an injection cavity 101 with an open end, a piston 2 is slidably mounted in the injection cavity 101, the end of the injector 1 is provided with a medicine outlet 3 communicated with the injection cavity 101, the medicine outlet 3 is connected with a pre-bending nasal cannula 7, the pre-bending nasal cannula 7 has a guide wire cavity 703 and a medicine administration cavity 701 which are not communicated with each other, the medicine administration cavity 701 is connected with the medicine outlet 3, a guide wire 8 is arranged in the guide wire cavity 703, the guide wire 8 is hard, the retractor comprises a traction cylinder 4, the traction cylinder 4 is provided with a traction cavity 401 and a guide cavity 402 which are both provided with open ends, the directions of the traction cavity 401 and the guide cavity 402 are the same, a traction ring 5 is slidably mounted in the traction cavity 401, a flexible cable 6 is arranged in the guide cavity 402, the flexible cable 6 is usually a stainless steel wire or a wire, one end of the flexible cable 6 winds into the traction cavity 401 from the end of the guide, the other end penetrates through the traction cavity 401 and is fixedly connected with the guide wire 8, and the flexible cable 6 can pull the guide wire 8 to exit out of the traction cavity 401 by pushing the traction ring 5, so that the end part of the pre-bent nasal tube 7 is bent to facilitate administration to the throat.

The traction cylinder 4 and the injection cylinder 1 are fixedly installed together, and during manufacturing, the traction cylinder 4 and the injection cylinder 1 can be integrally formed by using an injection molding machine, so that the production cost can be reduced, and batch production can be realized.

Preflex nasal cannula 7 is the silicone tube, and the texture is soft, is fit for getting into the throat from the nasal cavity, and preflex nasal cannula 7 has straightway and the bending segment of an organic whole setting, and under natural condition, the bending segment becomes 90 degrees contained angles with the straightway, gets into the nasal cavity in-process, under 8 effects of seal wire, bending segment and straightway are on a straight line for preflex nasal cannula 7 gets into the nasal cavity more easily.

The tip of preflex nasal tube 7 is equipped with a plurality of medicine spraying hole 702, and medicine spraying hole 702 communicates for medicine cavity 701, when giving medicine to the poor free of charge, can be so that liquid medicine is vaporific blowout, has reduced the medicament quantity on the one hand, and on the other hand can be even implement the medicine in the throat.

The traction ring 5 is connected with a push plate 10 through a rigid connecting rod 9, the push plate 10 corresponds to the position of the pushing piston 2, and the length of the rigid connecting rod 9 is larger than that of the pushing piston 2. The end part of the rigid connecting rod 9 is provided with a thread section 901, the push plate 10 is provided with a through hole matched with the thread section 901, the upper side and the lower side of the push plate 10 are respectively provided with a locking nut 11 matched with the thread section 901, the relation between the withdrawing length of the guide wire 8 and the application dosage can be adjusted through the locking nut 11, and the requirements of different dosages of different medicaments are met.

When the medicine applying device is used, as shown in fig. 1, the locking nut 11 is adjusted to enable the guide wire 8 to be bent after withdrawing, corresponding medicine can be applied, then the push-injection piston 2 is pulled to suck the medicine into the push-injection cavity 101, the medicine outlet end 3 is connected with the medicine applying cavity 701 through the medicine conveying pipe, the guide wire 8 is inserted into the guide wire cavity 703 to enable the pre-bent nasal cannula 7 to be in a linear arrangement, then the flexible cable 6 is fixed with the tail end of the guide wire 8, the pre-bent nasal cannula 7 is inserted into the nasal cavity, and after the medicine applying part is reached, as shown in fig. 2, the push plate 10 is pushed, the traction ring 5 moves upwards, the flexible cable 6 drives the guide wire 8 to withdraw, the bending section is naturally bent under the pre-bending acting force, the push plate 10 is continuously pushed, and the push plate 10 pushes the push-injection piston.

To sum up, the utility model provides a intranasal throat ware of dosing enters into the position of applying medicine from the nasal cavity, has avoided the oral administration to make the medicine can't reach the target area because of the tongue body motion of the initiative that the patient stress factor leads to the normal anatomical structure of pre-bending nasal tube 7 suitable nasopharynx to oropharynx can alleviate the patient's misery when dosing, also makes the process of dosing accurate, and the medicine can accurately reach the target area. The embodiment of the utility model provides a compare with peroral administration, easy operation, it is accurate, the technique is mastered easily, improves clinical work efficiency, has reduced the degree of difficulty of giving medicine to the poor free of charge, and is widely used when being convenient for the anesthesia of throat.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides a ware of dosing transnasal throat, its characterized in that, includes injector and tractor, injector is including pushing away a filler section of thick bamboo (1), pushing away a filler section of thick bamboo (1) and having one end open bolus chamber (101), it has injection piston (2) to push away slidable mounting in chamber (101), the tip of pushing away a filler section of thick bamboo (1) is equipped with the intercommunication push away medicine end (3) of bolus chamber (101), it connects preflex nasal cannula (7) to go out medicine end (3), preflex nasal cannula (7) have guide wire chamber (703) and the chamber of dosing (701) that do not communicate each other, connect for medicine chamber (701) it connects go out medicine end (3), be equipped with seal wire (8) in guide wire chamber (703), the tractor is including pulling a filler section of thick bamboo (4), it all has tip open traction chamber (401) and guide chamber (402) to pull a filler section of thick bamboo (4), traction chamber (401) and guide chamber (402) are uncovered direction the same, draw chamber (401) slidable mounting have and draw ring (5), be equipped with flexible cable (6) in guide chamber (402), flexible cable (6) one end fixed mounting in draw on ring (5), the other end runs through draw chamber (401) and fixed connection seal wire (8).

2. A transnasal laryngeal applicator according to claim 1, characterised in that the pulling barrel (4) is fixedly mounted together with the plunger barrel (1).

3. A nasal laryngeal applicator according to claim 2, characterised in that the pre-bent nasal tube (7) is a silicone tube.

4. A nasolaryngeal applicator according to claim 3, wherein the pre-bent nasal tube (7) has a straight section and a bend section in one piece, the bend section being at a 90 degree angle to the straight section in the natural state.

5. A transnasal laryngeal applicator according to claim 4, characterised in that the end of the pre-bent nasal tube (7) is provided with several spray holes (702), the spray holes (702) communicating with the dosing cavity (701).

6. A transnasal laryngeal applicator according to claim 5, wherein the pull ring (5) is connected to a push plate (10) by a rigid connecting rod (9), the push plate (10) corresponding in position to the bolus piston (2), the length of the rigid connecting rod (9) being larger than the length of the bolus piston (2).

7. A transnasal laryngeal applicator according to claim 6, characterised in that a threaded section (901) is provided at the end of the rigid link (9), a through hole adapted to the threaded section (901) is provided on the push plate (10), and locking nuts (11) adapted to the threaded section (901) are provided on the upper and lower sides of the push plate (10) respectively.