Nasal cavity filler for hemostasis and manufacturing method of nasal cavity filler

A production method and filler technology, applied in the field of medical devices, can solve problems such as poor comfort and poor hemostatic effect, and achieve the effects of increasing elasticity, increasing ventilation performance, and improving ventilation effect

Pending Publication Date: 2020-12-04
WEST CHINA HOSPITAL SICHUAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a nasal cavity filler for hemostasis in view of the problems of poor comfort and poor hemostatic effect in the existing nasal cavity fillers for hemostasis in the prior art

Method used

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  • Nasal cavity filler for hemostasis and manufacturing method of nasal cavity filler
  • Nasal cavity filler for hemostasis and manufacturing method of nasal cavity filler
  • Nasal cavity filler for hemostasis and manufacturing method of nasal cavity filler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A nasal filling, comprising a filling body, such as Figure 1-Figure 3As shown, the filler body is an elastic part that is proportionally reduced according to the shape of the nasal cavity; the filler body absorbs liquid and can expand; after expansion, the filler body is an elastic part that is enlarged proportionally to the shape of the nasal cavity.

[0055] The filler body includes at least one of the upper nasal passage filling assembly 1, the middle nasal passage filling assembly 2, and the lower nasal passage filling assembly 3;

[0056] The upper nasal passage filling assembly 1 matches the upper nasal passage; the middle nasal passage filling assembly 2 matches the middle nasal passage; the lower nasal passage filling assembly 3 matches the lower nasal passage.

[0057] By dividing the filling body into three different filling components, the filling components of the corresponding parts are selected for patients with different operations. Parts that do not re...

Embodiment 2

[0070] Mix and foam the materials with the following proportions as filling materials.

[0071] Filling material: polyvinyl alcohol: 80-99%; chitosan: 0-20%; alginate: 0-5%; gelatin: 0-10%;

[0072] The crosslinking agent is formaldehyde solution, the catalyst is concentrated hydrochloric acid, the stabilizer is sodium lauryl sulfate, and the foaming agent is water-soluble starch.

[0073] In this example, polyvinyl alcohol is used as the filling material. Taking 15g of PVA as an example, take 15g of PVA (polyvinyl alcohol) as the raw material, add 75mL of water, stir until completely dissolved, then add 15mL of formaldehyde solution (crosslinking agent) and 2.5mL of Mass fraction 30% concentrated hydrochloric acid (catalyst), react for about 5 minutes, then add 2.5g water-soluble starch (foaming agent) and 1.5g sodium lauryl sulfate (stabilizer), react at constant temperature for 30 minutes, and keep stirring during the reaction. After the foam is stable, let it rest to room...

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Abstract

The invention relates to the technical field of medical instruments, in particular to a nasal cavity filler for hemostasis and a manufacturing method of the nasal cavity filler. The nasal cavity filler comprises a filler body, wherein the filler body is an elastic piece which is shrunk in equal proportion according to the shape of a nasal cavity; and the filler body can absorb liquid to expand, and after expansion, the filler body is an elastic piece which is amplified in equal proportion according to the shape of the nasal cavity. The filler body is designed on the basis of the structural form of the nasal cavity of a human body, elastic materials are used, expansion and compression are used for cooperation, the expanded filler body can make full contact with the four walls of the nasal cavity, and the concave part of the filler body corresponds to all protruding parts in the nose; and all or part of structures such as the middle turbinate, the lower turbinate, the nasal septum and the maxillary frontal process can be physically separated, and the anti-adhesion effect is achieved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a nasal filling for hemostasis and a manufacturing method thereof. Background technique [0002] After nasal cavity and sinus surgery in clinical otolaryngology, hemostasis is required to heal the surgical site. Due to the particularity of nasal cavity surgery, surgical suturing cannot be used to heal. Generally, nasal cavity fillers are used to apply pressure to stop bleeding. After the wound heals, the The filling is removed. [0003] Currently, Vaseline gauze and expanded hemostatic sponge are commonly used in clinical practice for nasal hemostasis. During use, the vaseline gauze generally takes 5-10 minutes to fill, and the filling is slow, which will cause great pain to the patient during filling and the varying degrees of reaction after filling, which is unbearable for the patient. Expandable hemostatic sponges are mainly strips of various thicknesses. They absorb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12
CPCA61B17/12A61B2017/12004
Inventor 陈飞黄勇杨聪聪王君谢涛汪洋李杰
Owner WEST CHINA HOSPITAL SICHUAN UNIV
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