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Assembly of nasal sinus balloon catheter and balloon-expandable intranasal stent

A balloon catheter and inner stent technology, applied in stents, medical science, prostheses, etc., can solve problems such as limited action area, poor inflammation treatment effect, and short action time of drugs on inflamed parts.

Active Publication Date: 2018-04-13
ENEIDE MEDICAL TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of treatment is only short-lived. The drug acts on the inflamed area for a short time and the area of ​​action is limited, so the treatment effect on inflammation is not good.
Moreover, within half a month after the operation, the sinuses and nasal mucosa are prone to adhesions, which will block the normal ventilation function.
[0005] Therefore, there is currently a lack of an effective treatment for rhinosinusitis postoperative inflammation and postoperative mucosal adhesions.

Method used

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  • Assembly of nasal sinus balloon catheter and balloon-expandable intranasal stent
  • Assembly of nasal sinus balloon catheter and balloon-expandable intranasal stent
  • Assembly of nasal sinus balloon catheter and balloon-expandable intranasal stent

Examples

Experimental program
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Effect test

Embodiment

[0143] The combination of the sinus balloon catheter and the balloon-expandable intranasal stent in this embodiment includes a balloon catheter 1 and a balloon-expandable intranasal stent 4 . Such as Figure 1a-1b As shown, the front end of the balloon catheter 1 of this embodiment is provided with a double-layer balloon, including an outer balloon 12 and an inner balloon 11. Correspondingly, the balloon catheter 1 is also provided with an outer balloon pressurization port 10 and the inner layer balloon pressurization port 9, the outer layer balloon pressurization port 10 is used for pressurizing and expanding the outer layer balloon 12, and the inner layer balloon pressurizing port 9 is used for pressurizing and expanding the inner layer balloon 11, wherein , the inner balloon pressurization port 9 and the outer balloon pressurization port 10 are located on the same side of the balloon catheter 1, in addition, the inner balloon 11 is a high-pressure balloon, and the outer bal...

Embodiment 2

[0161] The assembly of the sinus balloon catheter and the balloon-expandable intranasal stent of the present embodiment is similar to that of Embodiment 1, the difference is that the number of balloons of the balloon catheter of the present embodiment is 3, as Figure 14 As shown, they are respectively the distal balloon 13, the middle balloon 14 and the proximal balloon 15, and the three balloons are in series structure. The middle balloon 14 is non-compliant and is used to expand the sinus ostium of the lesion; the distal balloon 13 and the proximal balloon 15 are both compliant balloons and is used to expand the inner and outer cavities of the sinus ostium, thereby expanding the two sides of the intranasal stent. end so that the endonasal stent can be positioned without moving out of the sinus ostium.

[0162] The balloon catheter of this embodiment is provided with two pressurized ports, namely the balloon pressurized ports 16 at both ends and the middle balloon pressurize...

Embodiment 3

[0164] The assembly of the sinus balloon catheter and the balloon-expandable intranasal stent of the present embodiment is similar to that of Embodiment 1, the difference is that the balloon catheter of the present embodiment has one balloon, such as Figure 15 As shown, the balloon 2 is non-compliant; the middle part of the balloon 2 has a small diameter and is used to expand the sinus ostium of the lesion; the two ends are large in size and is used to expand the internal and external cavities of the sinus ostium, thereby expanding the intranasal stent The two ends of the nasal stent can be positioned without moving. Balloon 2 is non-compliant and is a high pressure balloon.

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PUM

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Abstract

The invention discloses an assembly of a nasal sinus balloon catheter and a balloon-expandable intranasal stent. Specifically, the assembly comprises the balloon-expandable intranasal stent and the nasal sinus balloon catheter, wherein the intranasal stent expands or contracts under the effect of external force, and does not have the capability of expanding or contracting per se; the intranasal stent is matched with the diseased nasal sinus in shape, the intranasal stent comprises a near end, a waist part and a far end under the expansion state, the cross section area of the near end is S1, the cross section area of the waist part is S2, the cross section area of the far end is S3, and S2 is smaller than S1 and S2 is smaller than S3; n balloons are arranged at the front end of the ballooncatheter, and n is greater than or equal to 1 and smaller than or equal to 3. Specifically, the assembly provided by the invention is used for treating rhinosinusitis, after the operation, the balloon-expandable intranasal stent is implanted into the diseased nasal sinus or nasal cavity for supporting the nasal sinus or nasal cavity, the inflammation of the nasal sinus or the nasal cavity is eliminated, and the synechia of the nasal sinus or nasal cavity mucosa is prevented.

Description

technical field [0001] The invention relates to the field of medical equipment for treating rhinosinusitis, in particular to a combination of a sinus balloon catheter and a balloon-expandable intranasal stent. Background technique [0002] The nasal cavity and sinuses are located below the skull, above the throat and mouth, and between the eye sockets. Nasal cavity and sinus lesions often spread to nearby tissues, which can cause various complications. Usually, rhinosinusitis is found in the nasal examination, with purulent secretions in the nasal passages or olfactory clefts, thickening or polypoid changes of the middle turbinate and middle nasal passage mucosa. For multiple sinusitis, negative pressure replacement therapy can be used, and for suppurative maxillary sinusitis, maxillary sinus puncture can be used. People with mechanical obstruction factors such as nasal polyps, hypertrophy of the middle turbinate, curved nasal septum, and hypertrophy of the adenoids may hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/958A61F2/844
CPCA61F2/844A61F2/958A61F2002/9583A61F2250/0039
Inventor 付亮辉沈碧峰朱大伟
Owner ENEIDE MEDICAL TECH SHANGHAI CO LTD