CN112043930B

CN112043930B - Catheter for tracheostoma

Info

Publication number: CN112043930B
Application number: CN202010937050.8A
Authority: CN
Inventors: 任佳; 于凌昱
Original assignee: West China Hospital of Sichuan University
Current assignee: West China Hospital of Sichuan University
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2022-07-19
Anticipated expiration: 2040-09-08
Also published as: CN112043930A

Abstract

The invention discloses a catheter for a tracheostoma, which comprises a catheter body, wherein the catheter body is sequentially provided with an outer isolation layer, a supporting layer and an inner isolation layer from outside to inside, the outer side wall of one end of the outer isolation layer is provided with a fixing disc which expands outwards, the other end of the outer isolation layer bends and contracts towards the axis of the outer isolation layer, one end of the inner isolation layer is provided with a filter layer, the middle part of the inner isolation layer is provided with a humidifying layer, an annular cavity for storing a humidifying medium is arranged in the fixing disc, the fixing disc is provided with a medium inlet and outlet communicated with the annular cavity, and a water delivery pipe connected with the humidifying layer is arranged in the annular cavity.

Description

Catheter for tracheostoma

Technical Field

The invention relates to the field of medical recovery equipment, in particular to a catheter for a tracheostoma.

Background

The treatment mode of malignant tumor of larynx is mainly surgical treatment, and the surgical mode includes partial larynx resection and whole larynx resection. A permanent tracheostoma is formed after the full larynx surgery, and a patient with the full larynx resection needs to wear a metal catheter after all treatments are finished so as to conveniently suck phlegm and avoid constriction of the stoma; the following problems exist in the prior art:

1. The air inhaled by a patient after total laryngectomy is relatively dry, so that the dry mucous membrane of the airway of the patient is easy to bleed in winter; 2. harmful substances in the air such as PM2.5 and the like cannot be filtered; 3. when the medical mask is worn to the tracheostoma, the medical mask cannot block substances such as aerosol and the like due to poor sealing property; 4. the plastic tracheal catheter can moisten the inhaled gas by combining with an artificial nose, but the plastic tracheal catheter is easy to block and age, cannot be disinfected regularly and needs to be replaced frequently; the 'artificial nose' is large in size and is not suitable for being placed on the neck for a long time.

Disclosure of Invention

Aiming at the problems, the invention provides a catheter for a tracheostoma, which has the advantages of humidification, filtration, good sealing performance, small volume and easy replacement.

The technical scheme of the invention is as follows:

the utility model provides a pipe for tracheostoma, includes the pipe body, the pipe body is by outer to interior outer isolation layer, supporting layer and the interior isolation layer of being equipped with in proper order, be equipped with the fixed disk of outside expansion on the lateral wall of outer isolation layer one end, the other end of outer isolation layer is to its axis bending shrinkage, a tip of interior isolation layer is equipped with the filter layer, the middle part of interior isolation layer is equipped with the humidification layer, be equipped with the annular cavity who is used for storing the humidification medium in the fixed disk, be equipped with on the fixed disk with the medium access & exit of annular cavity intercommunication, be equipped with in the annular cavity with the raceway that the humidification layer is connected.

The working principle of the technical scheme is as follows:

outer isolation layer and fistula direct contact, outer isolation layer is soft, the inside crooked shrink of one end of outer isolation layer simultaneously, avoid the mouth of pipe to cause the injury to fistula and intratracheal mucous membrane, utilize inner isolation layer to part supporting layer and air, avoid the quick ageing problem of supporting layer, the oral area of outer isolation layer sets up the fixed disk, the fixed disk glues on the skin around the fistula, reach good sealing performance, the oral area inboard of outer isolation layer is equipped with the non-woven fabrics and melts and spout cloth and the middle part is equipped with gauze and the cotton of moist form, can effectually filter the debris in the air and can also humidify inspiratory air simultaneously.

In a further technical scheme, the filter layer includes two-layer non-woven fabrics and one deck melt-blown fabric, the humidification layer includes two-layer gauze and is located the cotton between this two-layer gauze, the raceway with gauze and cotton are connected.

In a further technical scheme, a plurality of water conveying pipes are arranged between the annular cavity and the gauze and the cotton cloth, and all the water conveying pipes are uniformly distributed around the annular cavity.

In a further technical scheme, gel is arranged on one side of the fixed disc on the outer isolation layer.

In a further technical scheme, the melt-blown fabric is arranged between two layers of non-woven fabrics.

In a further technical scheme, two ends of the inner isolation layer are fixed on the inner wall of the outer isolation layer, the inner isolation layer and the outer isolation layer completely wrap the support layer, and the support layer is made of hard plastics.

In a further technical scheme, the fixing disc further comprises an annular rope, and two ends of the annular rope are fixed on two sides of the fixing disc.

In a further technical scheme, gel is arranged on one side of the fixed disc, which is in contact with the skin of a human body.

In a further technical scheme, a battery is arranged at one end of the annular rope, a heating resistance wire is arranged in the annular cavity, and the heating resistance wire and the battery are connected to the switch through leads.

The invention has the beneficial effects that:

1. the outer isolation layer is in direct contact with the fistula, the outer isolation layer is soft, one end of the outer isolation layer is bent inwards and contracted, the fistula is prevented from being damaged by a pipe orifice, the supporting layer is separated from air by the inner isolation layer, the problem of rapid aging of the supporting layer is avoided, a fixing disc is arranged at the opening part of the outer isolation layer and is adhered to the skin around the fistula, good sealing performance is achieved, non-woven fabrics and melt-blown fabrics are arranged on the inner side of the opening part of the outer isolation layer, and moist gauze and cotton cloth are arranged in the middle of the opening part of the outer isolation layer, so that sundries in the air can be effectively filtered, and meanwhile, the sucked air can be humidified;

2. When the cotton cloth and the gauze start to dry, a wetting medium can be injected into the annular cavity through the medium inlet and outlet;

3. the fixing disc is adhered to the skin around the fistula by using the gel, so that the phenomenon that the gel is adhered to the skin around the fistula of a patient after the catheter is taken down can be avoided;

4. the inner isolation layer and the outer isolation layer are utilized to completely wrap the supporting layer, so that the rapid aging of the hard supporting layer is avoided;

5. the device can be hung on the neck of a patient by installing a ring-shaped rope;

6. the air entering the air pipe is heated by installing a battery and a heating resistance wire.

Drawings

Fig. 1 is a schematic cross-sectional view of a catheter for tracheostoma according to the invention;

fig. 2 is an enlarged schematic view at a in fig. 1.

Description of the reference numerals:

1. gelling; 2. fixing the disc; 3. an annular cavity; 4. non-woven fabrics; 5. melt-spraying cloth; 6. cotton cloth; 7. gauze; 8. a support layer; 9. an outer isolation layer; 10. an inner barrier layer; 11. pressing a ring; 12. a battery; 13. heating the resistance wire.

Detailed Description

The embodiments of the present invention will be further described with reference to the accompanying drawings.

Example (b):

as shown in fig. 1-2, a catheter for tracheostoma comprises a catheter body, the catheter body comprises a support layer 8, an outer isolation layer 9 and an inner isolation layer 10, the inner isolation layer 10 and the support layer 8 are both hollow cylinders, the outer isolation layer 9 is made of polyethylene material, the polyethylene is soft, the support layer 8 is made of hard polystyrene, the inner isolation layer 10 is made of soft polyvinyl chloride, the outer isolation layer 9 is sleeved outside the support layer 8, the inner isolation layer 10 is arranged inside the support layer 8, the length of the outer isolation layer 9 is larger than that of the support layer 8, both ends of the outer isolation layer 9 are arranged outside both ends of the support layer 8, one end of the outer isolation layer 9 is unfolded outwards to form a fixed disk 2, the fixed disk 2 is circular, the cross-axis cross-section of the fixed disk 2 is rectangular, and the length direction of the rectangle is in the radial direction of the outer isolation layer 9, one side surface of the fixed disk 2 is provided with medical adhesive, the auxiliary device is used for being stuck on the skin around the fistula, and the other end of the outer isolation layer 9 is bent inwards to shrink to form a spherical surface;

The filter layer is arranged in one end, provided with the fixed disc 2, of the outer isolation layer 9, comprises two layers of non-woven fabrics 4 and one layer of melt-blown fabric 5, the middle part of the inner side of the inner isolation layer 10 is provided with the humidifying layer, the humidifying layer comprises two layers of gauzes 7 and one layer of cotton cloth 6, the melt-blown fabric 5 is arranged between the two layers of non-woven fabrics 4, the cotton cloth 6 is positioned between the two layers of gauzes 7, the gauzes 7 and the cotton cloth 6 are in a moist shape, the cotton cloth 6 meets air permeability and moisture retention, meanwhile, the filter layer needs to filter dust, germs and aerosol in air, so the filter layer is detachably arranged on the outer isolation layer 9, and is replaced every four hours on average when in use;

the outer side of the filter layer is provided with a press ring 11, the press ring 11 is annular, the end face of the press ring 11 is flush with the end face of the outer isolation layer 9 at the end with the fixed disc 2, in the using process, when the time point that the filter layer needs to be replaced is reached, the press ring 11 only needs to be taken down from the outer isolation layer 9, a new filter layer is replaced, then the press ring 11 is placed in the outer isolation layer 9, and the filter layer is compacted;

an annular cavity 3 is arranged in a fixed disc 2 arranged at the end part of an outer isolation layer 9, the annular cavity 3 is completely wrapped by the fixed disc 2, purified water is filled in the annular cavity 3, a water delivery pipe is arranged on the annular cavity 3, one end of the water delivery pipe is communicated with the annular cavity 3, the water delivery pipe penetrates through a supporting layer 8, the outer isolation layer 9 and an inner isolation layer 10, the other end of the water delivery pipe is arranged on the side surfaces of cotton cloth 6 and gauze 7 in the middle of the inner isolation layer 10, the cotton cloth 6 and the gauze 7 can be always in a wet state by utilizing the siphonage phenomenon, a medium inlet and outlet is arranged on the annular cavity 3 arranged in the fixed disc 2, and when the cotton cloth 6 and the gauze 7 start to dry, a wet medium can be injected into the annular cavity 3;

Outer isolation layer 9 and fistula direct contact, outer isolation layer 9 is soft, the one end incurving on skin layer simultaneously, avoid the mouth of pipe to cause the injury to the fistula, utilize inner isolation layer 10 to part supporting layer 8 and air, avoid the 8 quick ageing problem of supporting layer, this auxiliary device's oral area sets up fixed disk 2, fixed disk 2 glues on the skin around the fistula, reach good sealing performance, this auxiliary device's oral area inboard is equipped with non-woven fabrics 4 and melt and spouts cloth 5 and the middle part is equipped with gauze 7 and the cotton 6 of moist form, can effectually filter the debris in the air and can also humidify inspiratory air simultaneously.

In another embodiment:

the medium access & exit on the annular cavity 3 is located the downside of annular cavity 3, is equipped with on the annular cavity 3 and is no less than eight raceway, and all raceway are even distributes in cotton 6 and gauze 7 a week for the holistic moist degree of cotton 6 and gauze 7 is the same.

In another embodiment:

the fixing disc 2 is provided with the gel 1 on one side used for being pasted on the skin around the fistula, the fixing disc 2 is pasted on the skin around the fistula by utilizing the gel 1, and the phenomenon that the gel is still pasted on the skin around the fistula of a patient after the catheter is taken down can be avoided.

In another embodiment:

Both ends of the inner isolation layer 10 are fixed on the inner wall of the outer isolation layer 9, the inner isolation layer 10 and the outer isolation layer 9 wrap the supporting layer 8 completely, and rapid aging of the hard supporting layer 8 is avoided.

In another embodiment:

this a pipe for tracheostoma still includes the annular rope, the annular rope is made by soft plastics, the relative both sides at fixed disk 2 are fixed at the both ends of annular rope, through installation annular rope, can hang the device on patient's neck, be equipped with battery 12 in the annular rope, be equipped with heating resistor silk 13 in the annular cavity 3 simultaneously, be connected with switch through the wire between heating resistor silk 13 and the battery 12, through installation battery 12 and heating resistor silk 13, heat the air that gets into the trachea, avoid colder air to get into the trachea, cause strong stimulation to the patient.

In another embodiment:

a battery jar and a cover are arranged in one end of the annular rope, a button battery is arranged in the battery jar, the button battery is small in size, low in price and low in use cost.

In another embodiment:

one end of the annular rope is provided with a cylindrical lithium battery, a charging port is arranged in the other end of the annular rope, and the cost of the catheter for a patient can be reduced by utilizing the characteristics of large capacity and recycling of the lithium battery.

The above embodiments only express specific embodiments of the present invention, and the description is specific and detailed, but not to be understood as limiting the scope of the present invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention.

Claims

1. A catheter for a tracheostoma is characterized by comprising a catheter body, wherein the catheter body is sequentially provided with an outer isolation layer, a supporting layer and an inner isolation layer from outside to inside, the outer side wall of one end of the outer isolation layer is provided with a fixing disc expanding outwards, the other end of the outer isolation layer bends and contracts towards the axis of the outer isolation layer, one end of the inner isolation layer is provided with a filter layer, the middle of the inner isolation layer is provided with a humidifying layer, the fixing disc is internally provided with an annular cavity for storing humidifying media, the fixing disc is provided with a media inlet and a media outlet communicated with the annular cavity, and the annular cavity is internally provided with a water delivery pipe connected with the humidifying layer;

the filter layer comprises two layers of non-woven fabrics and one layer of melt-blown fabric, the humidifying layer comprises two layers of gauze and cotton cloth positioned between the two layers of gauze, and the water delivery pipe is connected with the gauze and the cotton cloth;

A plurality of water conveying pipes are arranged between the annular cavity and the gauze and cotton cloth, and all the water conveying pipes are uniformly distributed on the periphery of the annular cavity;

the melt-blown fabric is arranged between two layers of non-woven fabrics.

2. A catheter for a tracheostoma according to claim 1, wherein both ends of the inner barrier layer are fixed to the inner wall of the outer barrier layer, the inner and outer barrier layers completely enclosing the support layer, the support layer being a rigid plastic.

3. The tube for a tracheostoma according to claim 1, further comprising a circular string, both ends of which are fixed to both sides of the fixed disk.

4. The tube for a tracheostoma according to claim 1, characterized in that a gel is provided on the side of the fixed disk that contacts the skin of the person.

5. A catheter for a tracheostoma according to claim 3, characterized in that a battery is arranged in one end of the looped rope, a resistance heater is arranged in the looped cavity, and the resistance heater and the battery are both connected to a switch by a lead.