Polyester cotton for cranial nerve microvascular decompression and its use

Abstract

The present invention aims to disclose a polyester cotton for cranial nerve microvascular decompression and its use, and to develop a polyester cotton with an unspecified three-dimensional shape. The polyester cotton is a cotton-like structure, and the polyester cotton includes a plurality of polyester fibers. The polyester fibers are wavy, and the fineness of the polyester fibers is d, d=100D~200D, the number of filaments of the polyester fibers is f=(0.2~2)*d, and the density of the polyester cotton is 0.003g / cm 3 ~0.01g / cm 3 The filaments of the polyester fiber are in a separated state. The beneficial effects of the present invention are: the polyester cotton is soft, fluffy and has a certain elasticity, can be arbitrarily shaped in the clinical process, and polyester cottons of different sizes can be used in combination. The polyester cotton of appropriate size and shape can be quickly selected according to the spatial structure between the cranial nerves and the brain microvascular vessels, and the shaped polyester cotton can be placed between the cranial nerves and the brain microvascular vessels to achieve isolation of the cranial nerves and the brain microvascular vessels, so as to treat the patient's cranial nerve lesions.

Description

Technical Field

[0001] The invention relates to the technical field of cranial nerve microvascular decompression, in particular to polyester cotton used for cranial nerve microvascular decompression and application thereof. Background Art

[0002] Cranial nerves are also called "brain nerves". The human body has 12 pairs of cranial nerves, that is, 24 in total. They are peripheral nerves, and are paired cranial nerves that emanate from the brain. Cranial nerves include the olfactory nerve, optic nerve, oculomotor nerve, trochlear nerve, trigeminal nerve, abducens nerve, facial nerve, auditory nerve, glossopharyngeal nerve, vagus nerve, accessory nerve, and hypoglossal nerve.

[0003] When cranial nerves are compressed by blood vessels, people will experience trigeminal neuralgia, hemifacial spasm, glossopharyngeal neuralgia, masseter spasm, blepharospasm, positional vertigo, Meniere's syndrome, etc. For example, trigeminal neuralgia is a recurring, paroxysmal, severe neuralgia that usually requires conservative or surgical treatment.

[0004] Conservative treatment is to block nerve transmission through mechanical, drug or radiation methods to suppress pain, but it also suppresses the transmission of normal tactile sensation, and it cannot cure the disease and is prone to recurrence.

[0005] Surgical treatment is to solve nerve pain through clinical craniotomy. Studies have found that symptoms such as cranial neuralgia or spasm are mainly caused by blood vessels compressing cranial nerves. Such diseases require the cranial nerves to be isolated from microvascular vessels to avoid direct compression of the cranial nerves by microvascular vessels. This type of surgery is also called cranial nerve decompression.

[0006] In cranial nerve decompression surgery, the cranial nerves are usually isolated from the microvascular by Teflon (polytetrafluoroethylene) gaskets, Teflon (polytetrafluoroethylene) cotton, polyester gaskets, etc. The defect of Teflon (polytetrafluoroethylene) gaskets is that the Teflon (polytetrafluoroethylene) gaskets are placed between the microvascular and cranial nerves. Because the contact surface area between the gaskets and the cranial nerves and microvascular is small, on the one hand, they become loose and shift due to vibration and other reasons; on the other hand, the Teflon (polytetrafluoroethylene) gaskets are relatively hard. After a long time, the Teflon (polytetrafluoroethylene) gaskets themselves will stimulate the cranial nerves, thereby causing new pain. Teflon (polytetrafluoroethylene) cotton is composed of Teflon (polytetrafluoroethylene) fibers. Teflon (polytetrafluoroethylene) fibers themselves are highly elastic and difficult to bend. They are not easy to shape during clinical use, and are not conducive to being made into any shape to fill the unspecified shape space between cranial nerves and microscopic blood vessels. After a long time, the fibers in Teflon (polytetrafluoroethylene) cotton themselves will stimulate cranial nerves and cause recurrence of the disease. The polyester gasket is similar to the Teflon (polytetrafluoroethylene) gasket in that the contact surface area between the gasket and the cranial nerves and microscopic blood vessels is small, and it will be displaced and fall off due to vibration or other factors, causing recurrence.

[0007] In view of this, it is urgent to develop an insulator between cranial nerves and microvasculars to solve the above problems. Summary of the invention

[0008] The purpose of the present invention is to disclose a polyester cotton for cranial nerve microvascular decompression and its application, and to develop polyester cotton with an unspecified three-dimensional shape.

[0009] The first object of the present invention is to develop a polyester cotton for cranial nerve microvascular decompression.

[0010] The second object of the present invention is to develop a use of polyester cotton.

[0011] In order to achieve the first object of the above invention, the present invention provides a polyester cotton for cranial nerve microvascular decompression, wherein the polyester cotton is a cotton-like structure, the polyester cotton comprises a plurality of polyester fibers, the polyester fibers are wavy, the fineness of the polyester fibers is d, d=100D~200D, the number of filaments of the polyester fibers is f=(0.2~2)*d, and the density of the polyester cotton is 0.003g / cm 3 ~0.01g / cm 3 The filaments of the polyester fiber are in a separated state.

[0012] In order to achieve the first object of the above invention, the present invention provides another polyester cotton for cranial nerve microvascular decompression, wherein the polyester cotton is a cotton-like structure, the polyester cotton comprises a plurality of polyester fibers, the polyester fibers are wavy, the fineness of the polyester fibers is d, d=100D~200D, the number of filaments of the polyester fibers is f=(0.2~2)d, and the density of the polyester cotton is 0.001g / cm 3 ~0.003g / cm 3 The filaments of the polyester fiber are in a separated state.

[0013] Preferably, the polyester fiber is one of high-gloss polyester fiber, semi-dull polyester fiber, and full-dull polyester fiber.

[0014] Preferably, the fluffiness of the polyester cotton is 600-850.

[0015] Preferably, the fluffiness of the polyester cotton is 850-1500.

[0016] Preferably, the polyester fiber has a length of 1 cm to 20 cm.

[0017] Preferably, the polyester cotton has an amorphous shape.

[0018] Preferably, the wavelength of the wave pattern of the polyester fiber is 0.5 mm to 3 mm.

[0019] Preferably, the maximum diameter of the polyester cotton is 2 mm to 10 mm.

[0020] Based on the same inventive principle, in order to achieve the above-mentioned second invention purpose, the polyester cotton as described in the first invention is used as an insulator in cranial nerve microvascular decompression surgery.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) Polyester cotton is soft, fluffy and elastic. It can be shaped arbitrarily during clinical practice. Polyester cotton of different sizes can be used in combination. Polyester cotton of appropriate size and shape can be quickly selected according to the spatial structure between cranial nerves and brain microvascular vessels. The shaped polyester cotton can be placed between the cranial nerves and brain microvascular vessels to achieve isolation of the cranial nerves and brain microvascular vessels, so as to treat the patient's cranial nerve lesions.

[0023] (2) The filaments of polyester cotton are in a separated state, that is, the filaments of each bundle of polyester fiber are separated, which makes the polyester fiber softer and more cotton-like. It also increases the specific surface area of ​​contact between the polyester cotton and the cranial nerves and microscopic blood vessels, making the contact more secure and less likely to loosen or shift;

[0024] (3) The polyester cotton acts as an insulator between the cranial nerves and the microvascular vessels. The areas pressed by the cranial nerves and the microvascular vessels are in a compressed state, while the uncompressed areas are still fluffy, making the polyester cotton more firmly embedded between the cranial nerves and the microvascular vessels and less likely to loosen or shift. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the wavy polyester fiber of the present invention;

[0026] Figure 2 This is a schematic diagram of the polyester cotton morphology of the present invention;

[0027] Figure 3 This is a schematic diagram of the polyester cotton used as an insulator in the present invention.

[0028] Among them, 1. Polyester long fiber; 2. Polyester cotton; 3. Cranial nerves; 4. Microscopic blood vessels. DETAILED DESCRIPTION

[0029] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] Definition of terms:

[0032] Denier: Indicated by the letter d, also known as denier, which is mostly used in chemical fiber filaments. It refers to the weight of 9000m long fiber at the standard moisture regain. For example, when the weight of 9000m long fiber is one gram, it is called 1D. The larger the denier of polyester fiber, the thicker the polyester fiber; conversely, the smaller the denier of polyester fiber, the thinner the polyester fiber.

[0033] Number of filaments: Indicated by the letter f, it refers to the number of filaments in a bundle of polyester fibers. For example, f=36 means that the number of filaments in a bundle of polyester fibers is 36, that is, 36 filaments make up a bundle of polyester fibers.

[0034] Wavy: refers to the polyester fiber bending in the form of waves with a certain wavelength in its natural state.

[0035] Fiber types: According to the different content of titanium dioxide added as matting agent in polyester fiber, polyester fiber can be divided into highly glossy polyester fiber, semi-matt polyester fiber, and fully matt polyester fiber. When the amount of titanium dioxide added in polyester fiber is 0, it is called highly glossy polyester fiber. When the amount of titanium dioxide added in polyester fiber is about 0.3%, it is called semi-matt polyester fiber. When the amount of titanium dioxide added in polyester fiber is about 2.5%, it is called fully matt polyester fiber.

[0036] Fluffiness: refers to the volume cubic inch value occupied by one ounce (30 grams) of polyester cotton under certain conditions. For example, if the space occupied by one ounce of polyester cotton is 800 cubic inches, the fluffiness of the polyester cotton is called 800.

[0037] The specific implementation process of the present invention is described below through multiple embodiments.

[0038] Embodiment 1:

[0039] The polyester cotton used for cranial nerve microvascular decompression surgery has a cotton-like structure and includes a plurality of polyester fibers, and the polyester fibers are wavy, such as Figure 1 As shown, the fineness of the polyester fiber is d, d=100D~200D, the number of filaments of the polyester fiber is f=(0.2~2)*d, and specifically the polyester fiber can be 100D / 36f, 100D / 72f, 100D / 144f, 150D / 36f, 150D / 72f, 150D / 144f, 150D / 280f, 200D / 36f, 200D / 72f, 200D / 144f, 200D / 280f, 200D / 350f, etc. The density of the polyester cotton is 0.003g / cm 3 ~0.01g / cm 3 Specifically, the density of polyester cotton can be 0.003g / cm 3 , 0.005g / cm 3 , 0.007g / cm 3 , 0.009g / cm 3 , 0.01g / cm 3 The filaments of the polyester fiber are in a separated state, and the separated state here means that each filament of the polyester fiber can be pulled out in a natural state (not processed by external force), which makes the polyester cotton softer and has a larger contact surface area with the cranial nerves and microscopic blood vessels. At the same time, in order to use the polyester cotton safely in cranial nerve decompression surgery, the polyester cotton needs to be sterilized by ultraviolet irradiation or ethylene oxide.

[0040] Through this embodiment, the following technical effects are achieved:

[0041] (1) Polyester cotton is soft, fluffy and elastic. It can be shaped arbitrarily during clinical practice. Polyester cotton of different sizes can be used in combination. Polyester cotton of appropriate size and shape can be quickly selected according to the spatial structure between cranial nerves and brain microvascular vessels. The shaped polyester cotton can be placed between the cranial nerves and brain microvascular vessels to achieve isolation of the cranial nerves and brain microvascular vessels, so as to treat the patient's cranial nerve lesions.

[0042] (2) The filaments of polyester cotton are in a separated state, that is, the filaments of each bundle of polyester fiber are separated, which makes the polyester fiber softer and more cotton-like. It also increases the specific surface area of ​​contact between the polyester cotton and the cranial nerves and microscopic blood vessels, making the contact more secure and less likely to loosen or shift;

[0043] (3) The polyester cotton acts as an insulator between the cranial nerves and the microvascular vessels. The areas pressed by the cranial nerves and the microvascular vessels are in a compressed state, while the uncompressed areas are still fluffy, making the polyester cotton more firmly embedded between the cranial nerves and the microvascular vessels and less likely to loosen or shift.

[0044] Embodiment 2

[0045] The difference from the first embodiment is that the density of the polyester cotton in the second embodiment is lower and more fluffy. The density of the polyester cotton is 0.001 g / cm 3 ~0.003g / cm 3 Specifically, the density of polyester cotton can be 0.001g / cm 3 , 0.002g / cm 3 , 0.028g / cm 3 , fluffier polyester cotton, which helps to better shape the polyester cotton during clinical applications.

[0046] Embodiment 3

[0047] Based on a large number of clinical practices, according to the different performance parameters of polyester fibers, Example 3 lists several clinical manifestations of polyester cotton used in cranial nerve microvascular decompression. In specific clinical processes, polyester cotton has different maximum diameters, see Figure 2 The polyester cotton must first be soaked in saline. The doctor then selects polyester cotton of different sizes for shaping according to the spatial shape between the cranial nerves and the microscopic blood vessels. It can be a single polyester cotton for shaping, or a combination of polyester cottons of different sizes can be used for shaping. The specific examples are shown in Table 1.

[0048] Table 1 Polyester cotton with different performance parameters

[0049]

[0050]

[0051]

[0052] In order to further improve the fluffiness and elasticity of polyester cotton, polyester fiber uses network yarn. Network yarn refers to the filaments in the network nozzle. Under the action of the jet airflow, the single filaments are entangled with each other to form long filaments with periodic entanglements. The polyester cotton made of mesh yarn polyester fiber has good fluffiness and elasticity, which is more suitable for clinical application in cranial nerve decompression.

[0053] It should be further explained that no matter how fluffi the polyester cotton is, in specific clinical use, it needs to be soaked in physiological saline first. After being soaked, the volume of the polyester cotton will be reduced to a certain extent. At this time, the doctor can shape the polyester cotton arbitrarily. One polyester cotton can be used, such as directly using polyester cotton with a maximum diameter of 10mm, or a combination of polyester cottons of different volumes can be used for shaping, such as a combination of polyester cottons with a maximum diameter of 5mm and a maximum diameter of 8mm. After the shaping is completed, the polyester cotton is placed between the cranial nerves and the microscopic blood vessels as an insulator. For details, see Figure 3 .

[0054] It should be further explained that the polyester cotton includes several polyester fibers, and the lengths of these polyester fibers can be the same, such as a single or several 10 cm long polyester fibers can constitute a polyester cotton, or polyester fibers of different lengths (1cm-20cm) can be mixed, depending on the overall volume of the polyester cotton and clinical needs.

[0055] It should be noted here that since the shape of polyester cotton is not specific, the diameter value of polyester cotton in different measuring directions is different. The maximum diameter refers to the maximum length of polyester cotton in a certain direction.

[0056] Through the third embodiment, the following technical effects are achieved:

[0057] (1) Polyester cotton is soft, fluffy and elastic. It can be shaped arbitrarily during clinical practice. Polyester cotton of different sizes can be used in combination. Polyester cotton of appropriate size and shape can be quickly selected according to the spatial structure between cranial nerves and brain microvascular vessels. The shaped polyester cotton can be placed between the cranial nerves and brain microvascular vessels to achieve isolation of the cranial nerves and brain microvascular vessels, so as to treat the patient's cranial nerve lesions.

[0058] (2) The filaments of polyester cotton are in a separated state, that is, the filaments of each bundle of polyester fiber are separated, which makes the polyester fiber softer and more cotton-like. It also increases the specific surface area of ​​contact between the polyester cotton and the cranial nerves and microscopic blood vessels, making the contact more secure and less likely to loosen or shift;

[0059] (3) The polyester cotton acts as an insulator between the cranial nerves and the microvascular vessels. The areas pressed by the cranial nerves and the microvascular vessels are in a compressed state, while the uncompressed areas are still fluffy, making the polyester cotton more firmly embedded between the cranial nerves and the microvascular vessels and less likely to loosen or shift.

[0060] Embodiment 4

[0061] Example 4 discloses that the polyester cotton described in Example 1, Example 2, and Example 3 is used as an isolator in cranial nerve microvascular decompression. Figure 3 , polyester cotton 2 is placed between the cranial nerves 3 and the microvascular 4 as a spacer.

[0062] The polyester cotton disclosed in this embodiment is used as an insulator in cranial nerve microvascular decompression surgery and has the same technical solutions as those in Embodiment 1, Embodiment 2, and Embodiment 3. Please refer to Embodiment 1, Embodiment 2, and Embodiment 3, and no further details will be given here.

Claims

1. A polyester cotton for cranial nerve microvascular decompression, characterized in that: The polyester cotton is a cotton-like structure, comprising a plurality of polyester fibers, the polyester fibers are wavy, the fineness of the polyester fibers is d, d=100D~150D, the number of filaments of the polyester fibers is f=(0.2~2)*d, and the density of the polyester cotton is 0.003g / cm 3 ~0.01g / cm 3 The filaments of the polyester fiber are separated from each other, and each filament of the polyester fiber can be drawn out in a natural state, and the polyester fiber adopts a network yarn; The wavelength of the wave pattern of the polyester fiber is 0.5 mm to 3 mm, the length of the polyester fiber is 1 cm to 20 cm, and the lengths of the polyester fibers are the same or different; The maximum diameter of the polyester cotton is 2mm~10mm; Polyester cotton is sterilized by ultraviolet irradiation or ethylene oxide; The bulkiness of the polyester cotton is 850-1500; The polyester fiber is one of high gloss polyester fiber, semi-dull polyester fiber and full-dull polyester fiber; The amount of titanium dioxide added to the highly glossy polyester fiber is 0, the amount of titanium dioxide added to the semi-dull polyester fiber is 0.3%, and the amount of titanium dioxide added to the fully dull polyester fiber is 2.5%.

2. A polyester cotton for cranial nerve microvascular decompression, characterized in that: The polyester cotton is a cotton-like structure, comprising a plurality of polyester fibers, the polyester fibers are wavy, the fineness of the polyester fibers is d, d=200D, the number of filaments of the polyester fibers is f=(0.2~2)d, and the density of the polyester cotton is 0.001 g / cm 3 ~0.003g / cm 3 The filaments of the polyester fiber are separated from each other, and each filament of the polyester fiber can be drawn out in a natural state, and the polyester fiber adopts a network yarn; The wavelength of the wave pattern of the polyester fiber is 0.5 mm to 3 mm, the length of the polyester fiber is 1 cm to 20 cm, and the lengths of the polyester fibers are the same or different; The maximum diameter of the polyester cotton is 2mm~10mm; Polyester cotton is sterilized by ultraviolet irradiation or ethylene oxide; The bulkiness of the polyester cotton is 600-850; The polyester fiber is one of high gloss polyester fiber, semi-dull polyester fiber and full-dull polyester fiber; The amount of titanium dioxide added to the highly glossy polyester fiber is 0, the amount of titanium dioxide added to the semi-dull polyester fiber is 0.3%, and the amount of titanium dioxide added to the fully dull polyester fiber is 2.5%.

3. The polyester cotton for cranial nerve microvascular decompression as claimed in any one of claims 1 or 2, characterized in that: The polyester cotton has an amorphous shape.

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