CN211095006U - Inflatable medicine slow-release stent - Google Patents
Inflatable medicine slow-release stent Download PDFInfo
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- CN211095006U CN211095006U CN201921231405.0U CN201921231405U CN211095006U CN 211095006 U CN211095006 U CN 211095006U CN 201921231405 U CN201921231405 U CN 201921231405U CN 211095006 U CN211095006 U CN 211095006U
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Abstract
The utility model relates to the field of medical equipment, a inflatable medicine slow-release support is disclosed, including supporting the pipe support, still include one-way valve and with the intake pipe of one-way valve's inlet end intercommunication, support the pipe support including the release nest of tubes that communicates each other and the piece that releases that has the slow-release medicine in advance, the release nest of tubes is airtight and communicate with the one-way valve end of giving vent to anger, release the setting of piece and be in on the release nest of tubes, this application medicine slow-release support has stronger holding power, can be under the condition of not carrying out intranasal mirror operation, directly implant nasal polyp nasal cavity at the outpatient service, open the nasal cavity passageway that is block.
Description
Technical Field
The utility model relates to the field of medical equipment, more specifically say, it relates to an inflatable medicine slowly-releasing support.
Background
The paranasal sinuses, also called paranasal sinuses and paranasal sinuses, are a plurality of air-containing bone cavities around the nasal cavity. The mucosa of the nasal sinuses is connected with the nasal mucosa, so the mucosa of the nasal cavity is inflamed and often spread to the mucosa of the sinus cavities, and nasosinusitis is caused. It is presently believed that the cause of sinusitis is primarily infection within the sinuses due to obstruction of the ostia by various causes, with nasal polyps being the major cause of obstruction of the sinus ostia, and inflammatory stimulation of the sinuses in turn promotes growth of the nasal polyps, forming a vicious circle. Aiming at chronic nasosinusitis caused by sinus flesh, the conventional treatment method mainly comprises the steps of cutting hyperplastic nasal polyp under an intranasal endoscope, opening a nasal passage again, and has the disadvantages of large operative wound, high cost, poor patient experience and certain psychological shadow.
According to the Chinese patent with the patent publication number of CN109394399A, the drug sustained-release stent comprises a stent and a polymer film, wherein the stent and the polymer film are connected together, the polymer film is a degradable polymer film or a non-degradable polymer film, and at least one layer of drug coating is arranged on the polymer film or the stent and plays a role in supporting and continuously administering drug to a postoperative lesion position. The polymer film bracket has obvious insufficient mechanical property, can not be directly placed into a nasal polyp lesion cavity channel to open a nasal cavity blocked by the nasal polyp, can only be used in combination with a sinus endoscopic operation, can not be used independently, and a patient still needs to perform a traumatic operation.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, an object of the present invention is to provide an inflatable drug sustained release stent, which has a strong supporting force, and can be used to implant nasal polyp and nasal cavity directly in outpatient service without performing nasal endoscopic surgery, and open the blocked nasal cavity channel.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
an inflatable drug sustained-release stent comprises a support tube frame, a one-way air valve and an air inlet tube communicated with the air inlet end of the one-way air valve;
the support pipe frame comprises a medicine releasing pipe group and a medicine releasing part in which slow-release medicines are prestored, which are communicated with each other, and the medicine releasing pipe group is closed and communicated with the air outlet end of the one-way valve;
the medicine releasing part is arranged on the medicine releasing pipe group.
Through the technical scheme, the inflatable medicine slow-release stent is placed at a pathological change part, the supporting pipe frame is inflated from the air inlet pipe, the pathological change part is supported after the supporting pipe frame is expanded, the medicine is slowly released by the medicine releasing piece to treat the pathological change part, the supporting force on the pathological change part can be adjusted by adjusting the air inflow, and the adaptability is strong.
The utility model discloses further set up to: the drug release tube group comprises a plurality of first drug release tubes which are symmetrically arranged and a plurality of second drug release tubes which are symmetrically arranged;
one end of each first medicine releasing pipe is communicated with the air outlet end of the one-way valve, the second medicine releasing pipe is an annular pipe, and the other end of each first medicine releasing pipe is communicated with the second medicine releasing pipe.
The utility model discloses further set up to: the second medicine release pipes are mutually crossed and communicated.
By adopting the technical scheme, the lesion part can be more uniformly supported by symmetrically arranging the drug releasing tube groups, the control of supporting force is convenient, the contact area between the drug releasing tube groups and the lesion part is increased, and the lesion part can be uniformly and fully treated by the drug.
The utility model discloses further set up to: the drug releasing part comprises a drug storing tube wound on the drug releasing tube group and a drug releasing hole arranged on the drug storing tube, the drug storing tube is loaded with the slow-release drug, and the drug releasing hole is communicated with the drug storing tube.
By the technical scheme, the medicine storage tube and the medicine releasing holes wound on the medicine releasing tube group can release a large amount of slow-release medicines more uniformly.
The utility model discloses further set up to: the one-way valve comprises a valve post, a sealing plate and an elastic part;
an air cavity is formed in the valve post, and an air inlet and an air outlet are respectively formed in two ends of the valve post;
the elastic piece is fixedly arranged in the air cavity, one end of the elastic piece is close to the air outlet hole, the other end of the elastic piece is fixedly connected with the sealing plate, and the sealing plate is sealed with the air inlet hole by the elastic force of the elastic piece.
Through the technical scheme, when the air is not inflated, the elastic part pushes the sealing plate to seal the air inlet under the elastic action of the elastic part; when the air inlet pipe is inflated, the air flow pushes the sealing plate to move in the direction far away from the air inlet hole by overcoming the elastic action of the elastic piece, and the air flow enters the air cavity along the gap between the air inlet hole and the wind shield and flows into the support pipe frame to expand the support pipe frame; when the inflation is stopped, the elastic piece pushes the sealing plate to seal the air inlet hole again, and the support pipe frame keeps expanding.
The utility model discloses further set up to: the outer surface of the medicine storage tube is an elastic layer.
By adopting the technical scheme, the elastic surface is contacted with the pathological change part to reduce the discomfort of a patient, meanwhile, the connection between the medicine storage tube and the pathological change part is tighter, and when the medicine releasing tube group expands, the medicine storage tube can be extruded to a certain degree, so that the slow-release medicine is released from the medicine releasing hole.
The utility model discloses further set up to: a plurality of concave pits are formed in the inner wall of the medicine storage tube.
Through the technical scheme, the maximum storage amount of the medicine in the medicine storage tube can be increased due to the existence of the pits, and the medicine is continuously provided for the lesion part.
Compared with the prior art, the beneficial effects of the utility model are that:
the inflatable medicine slow-release stent is placed at a pathological change part, the supporting pipe frame is inflated from the air inlet pipe, the supporting pipe frame is made to expand and then supports the pathological change part, the medicine is slowly released by the medicine releasing piece to treat the pathological change part, the supporting force on the pathological change part can be adjusted by adjusting the air inflow, and the adaptability is high.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a part of the structure of the present invention (for showing the drug storage tube);
fig. 3 is a partial structural sectional view (for showing the one-way valve) of the present invention.
Reference numerals: 1. supporting the pipe frame; 2. a one-way valve; 3. an air inlet pipe; 11. a drug release tube set; 12. a medicament release member; 111. a first drug release tube; 112. a second drug releasing tube; 121. a drug storage tube; 122. a drug release hole; 21. a valve post; 22. a sealing plate; 23. an elastic member; 24. an air cavity; 25. an air inlet; 26. and an air outlet.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
An inflatable drug sustained-release stent is shown in figure 1 and comprises a support tube frame 1, a one-way valve 2 and an air inlet tube 3 communicated with the air inlet end of the one-way valve 2. The support tube stand 1 comprises a drug releasing tube set 11 and a drug releasing member 12 (see figure 2) arranged on the drug releasing tube set 11 which are communicated with each other.
The drug delivery tube set 11 comprises a plurality of first drug delivery tubes 111 arranged symmetrically and a plurality of second drug delivery tubes 112 arranged symmetrically. In this embodiment, the two second drug releasing tubes 112 are annular tubes, and the two second drug releasing tubes 112 are crossed and connected to each other and are in a sine curve shape, so that the drug releasing tube set 11 has a stronger adaptability to uneven lesions. One end of the first drug releasing tube 111 is communicated with the air outlet end of the one-way valve 2, and the other end of the first drug releasing tube 111 is communicated with the second drug releasing tube 112, so that the whole drug releasing tube group 11 is in a symmetrical state.
The inflatable medicine slow-release stent is placed at a pathological change part, the supporting tube frame 1 is inflated from the air inlet pipe 3, the pathological change part is supported after the supporting tube frame 1 is expanded, a blocked nasal cavity channel is opened, the medicine is slowly released by the medicine releasing piece 12 to treat the pathological change part, the supporting force on the pathological change part can be adjusted by adjusting the air inflow, and the adaptability is strong. Moreover, the symmetrically arranged medicine releasing tube set 11 can more uniformly prop up the lesion, thereby facilitating the control of the propping up force, increasing the contact area of the medicine releasing tube set 11 and the lesion and ensuring that the lesion can be uniformly and fully treated by the medicine.
As shown in fig. 2, the drug releasing member 12 includes a drug storage tube 121 wound on the second drug releasing tube 112 and a plurality of drug releasing holes 122 formed on the drug storage tube 121, the supporting tube frame 1 is made of an elastic non-degradable material, the drug storage tube 121 is made of a degradable material and loaded with sustained-release drugs, the drug storage tube 121 can be spirally wound and fixed on the first drug releasing tube 111 and the second drug releasing tube 112, so as to increase the contact area with a lesion site and facilitate the drugs to better play a role, and more preferably, the drug storage tube 121 can be internally provided with a plurality of hollow tubes which are not communicated with each other and can be respectively placed with different types of sustained-release drugs.
The outer surface of the medicine storage tube 121 is an elastic layer, the elastic surface contacts with a lesion to reduce discomfort of a patient, meanwhile, the connection between the medicine storage tube 121 and the lesion is tighter, and when the medicine releasing tube set 11 expands, the medicine storage tube 121 can be squeezed to a certain degree, which is beneficial to releasing medicines from the medicine releasing holes 122. The inner wall of the medicine storage tube 121 is provided with a plurality of pits, so that the maximum storage capacity of the medicine in the medicine storage tube 121 can be increased, and the medicine can be continuously provided for the pathological changes.
As shown in fig. 3, the one-way valve 2 includes a valve post 21, a sealing plate 22 and an elastic member 23, an air cavity 24 is formed in the valve post 21, an air inlet 25 and an air outlet 26 are respectively formed at two ends of the valve post 21, the elastic member 23 is fixedly disposed in the air cavity 24, one end of the elastic member is disposed near the air outlet 26, the other end of the elastic member is fixedly connected with the sealing plate 22, and the sealing plate 22 is sealed by the elastic force of the elastic member 23 to form the air inlet 25. One end of the air inlet pipe 3 is communicated with one side of an air inlet 25 of the valve post 21, the other end of the air inlet pipe 3 extends out of the nose body to be inflated in a proper amount, the pressure between the support and the lesion part can be controlled through the inflation quantity, meanwhile, the operation is convenient to inflate outside the nose body, the air leakage risk caused by inflation inside the nose body is prevented, and after inflation, the air hose is cut off at a proper position inside the nose body.
When the air is not inflated, the elastic piece 23 pushes the sealing plate 22 to seal the air inlet 25 by elasticity; when the air inlet pipe 3 is inflated, the air flow pushes the sealing plate 22 to move in the direction far away from the air inlet hole 25 by overcoming the elastic force of the elastic part 23, and the air flow enters the air cavity 24 along the gap between the air inlet hole 25 and the wind shield and flows into the support pipe frame 1 to expand the support pipe frame 1; when the inflation is stopped, the elastic member 23 pushes the sealing plate 22 again to seal the air inlet hole 25, and the support pipe frame 1 is kept expanded.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. An inflatable drug sustained-release stent comprises a support tube frame (1) and is characterized by also comprising a one-way air valve (2) and an air inlet tube (3) communicated with the air inlet end of the one-way air valve (2);
the support pipe frame (1) comprises a medicine releasing pipe group (11) and a medicine releasing part (12) in which slow-release medicines are prestored, wherein the medicine releasing pipe group (11) is closed and is communicated with the air outlet end of the one-way valve (2);
the medicine releasing part (12) is arranged on the medicine releasing pipe group (11).
2. The inflatable drug sustained-release stent according to claim 1, wherein the drug releasing tube group (11) comprises a plurality of first drug releasing tubes (111) which are symmetrically arranged and a plurality of second drug releasing tubes (112) which are symmetrically arranged;
one end of each first medicine releasing pipe (111) is communicated with the air outlet end of the one-way valve (2), each second medicine releasing pipe (112) is an annular pipe, and the other end of each first medicine releasing pipe (111) is communicated with the corresponding second medicine releasing pipe (112).
3. The inflatable drug-eluting stent according to claim 2, wherein the second drug-eluting tubes (112) are arranged in cross communication with each other.
4. The inflatable drug sustained-release stent according to claim 1, wherein the drug releasing part (12) comprises a drug storage tube (121) wound on the drug releasing tube group (11) and drug releasing holes (122) arranged on the drug storage tube (121), the drug storage tube (121) is loaded with the sustained-release drug, and the drug releasing holes (122) are communicated with the drug storage tube (121).
5. The inflatable drug-eluting stent according to claim 4, wherein the one-way valve (2) comprises a valve post (21) and a sealing plate (22) and an elastic member (23);
an air cavity (24) is formed in the valve column (21), and an air inlet hole (25) and an air outlet hole (26) are respectively formed in two ends of the valve column (21);
the elastic piece (23) is fixedly arranged in the air cavity (24), one end of the elastic piece is close to the air outlet hole (26), the other end of the elastic piece (23) is fixedly connected with the sealing plate (22), and the sealing plate (22) is sealed with the air inlet hole (25) by the elasticity of the elastic piece (23).
6. The inflatable drug sustained-release stent according to claim 4, wherein the outer surface of the drug storage tube (121) is an elastic layer.
7. The inflatable drug sustained-release stent according to claim 4, wherein the inner wall of the drug storage tube (121) is provided with a plurality of concave pits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921231405.0U CN211095006U (en) | 2019-07-31 | 2019-07-31 | Inflatable medicine slow-release stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921231405.0U CN211095006U (en) | 2019-07-31 | 2019-07-31 | Inflatable medicine slow-release stent |
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| Publication Number | Publication Date |
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| CN211095006U true CN211095006U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921231405.0U Active CN211095006U (en) | 2019-07-31 | 2019-07-31 | Inflatable medicine slow-release stent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110279500A (en) * | 2019-07-31 | 2019-09-27 | 乐畅医疗器械(上海)有限公司 | A kind of Inflatable medicine slow release stent |
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2019
- 2019-07-31 CN CN201921231405.0U patent/CN211095006U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110279500A (en) * | 2019-07-31 | 2019-09-27 | 乐畅医疗器械(上海)有限公司 | A kind of Inflatable medicine slow release stent |
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