CN111904813A

CN111904813A - Negative pressure scar inhibition patch and negative pressure scar inhibition assembly comprising same

Info

Publication number: CN111904813A
Application number: CN202010749939.3A
Authority: CN
Inventors: 章一新; 李科
Original assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Shanghai Hayina Medical Technology Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2020-11-10
Anticipated expiration: 2040-07-30
Also published as: CN111904813B

Abstract

The invention discloses a negative pressure scar inhibition paster, which comprises a pasting film, a supporting body, a sealing mechanism and a cooling layer cavity; the support body is a porous structure which can be penetrated by gas and can be slightly deformed under pressure; an air pumping cavity is arranged in the support body, and air can be communicated between the porous structure of the support body and the air pumping cavity; the sticking film is attached on the support body, and the size of the sticking film is subject to the condition that the support body can be completely covered and the periphery can be stuck to the skin; the sealing mechanism is covered above the air pumping cavity and penetrates through the pad pasting, and the sealing mechanism is a one-way valve, an elastic plug or an elastic sealing cover; the attached supporter bottom surface in cooling layer chamber, the cooling layer intracavity portion is equipped with the water pocket that the pressurized can break, and the cooling layer chamber is filled has the hot particulate matter of water soluble desorption, and the particulate matter surrounds the water pocket. The negative pressure scar inhibition patch can be used for applying pressure to treat scars by forming negative pressure through vacuumizing, so that the comfort and the stability are improved, and the effect of cooling and cold compress can be achieved.

Description

Negative pressure scar inhibition patch and negative pressure scar inhibition assembly comprising same

Technical Field

The invention belongs to the technical field of medical auxiliary instruments, and particularly relates to a negative pressure scar inhibiting patch and a negative pressure scar inhibiting assembly comprising the same.

Background

Scars can be left on body skin wounds, particularly after burn healing, trauma and surgery, and the scars can affect the beauty of the human body, cause pain and pruritus and reduce the life quality. The main physical therapy method at present is to apply pressure through bandage or elastic clothes, so as to achieve the effect of inhibiting scars. The method is suitable for treating scars of large-area wounds, and has the following defects for treating scars of small-area wounds: on one hand, the small-area wound is inconvenient to bind and discomfort and inconvenience are easily brought to the daily life of a patient; on the other hand, due to the existence of various depressed parts on the surface of the human body, such as chest, spine and other areas, the compression effect is often not achieved when the elastic clothes are bound or worn by using bandages. The silica gel scar-removing patch commonly used in clinical treatment can only play a role in moisturizing the surface of a scar and relieving itching, and cannot apply pressure to the scar, so that a better treatment effect is achieved.

Patent 201820493046.5 (publication No. CN209405083U) discloses a scar-removing pressure patch, which comprises a sticking film, a double-layer air-extracting head and a one-way air-extracting valve, wherein the scheme is characterized in that the double-layer air-extracting head is arranged in the middle of the sticking film, the lower bottom plate of the double-layer air-extracting head and the sticking film are tightly attached to the skin in a vacuumizing mode, the lower bottom plate is stressed and applies pressure to the surface of a scar, the scar tissue lacks blood supply and oxygen supply, and the necrosis and apoptosis of fibroblasts in the scar are promoted, so that the scar-treating effect is realized. However, the scheme still has the following problems that after the scar is treated by the optical therapy or when the medicine is applied for applying pressure, the scar part can generate burning sensation and itching sensation, and needs cooling and cold compress treatment, but the scar removing pressure patch cannot implement cooling operation, and on the other hand, the double-layer air suction head of the scheme has extra hardness and has no deformation, and the comfort and the stability of the attachment are required to be improved.

Disclosure of Invention

Therefore, aiming at the technical problems that the scar pressure suppression patch in the prior art cannot perform cooling operation and is not high in comfort and stability, the invention aims to provide a negative pressure scar suppression patch which can perform cooling treatment and is high in comfort and stability and a negative pressure scar suppression assembly comprising the negative pressure scar suppression patch.

The negative pressure scar-inhibiting paster comprises a sticking film, a support body, a sealing mechanism and a cooling layer cavity;

the support body is a porous structure which can be penetrated by gas and can be slightly deformed under pressure; an air pumping cavity is arranged in the support body, and air can be communicated between the porous structure of the support body and the air pumping cavity;

the sticking film is attached to the support body, and the size of the sticking film is determined by completely covering the support body and enabling the periphery of the sticking film to be stuck to the skin;

the sealing mechanism is covered above the air pumping cavity and penetrates through the film, and the sealing mechanism is a one-way valve, an elastic plug or an elastic sealing cover;

the cooling layer cavity is attached to the bottom surface of the support body, a pressurized and breakable water bag is arranged inside the cooling layer cavity, the cooling layer cavity is filled with particles which can dissolve in water and desorb heat, and the particles surround the water bag.

In the invention, the air pumping cavity is communicated with the pore canal of the support body in each direction, and can be the pore canal of the support body or an additionally opened cavity.

In the invention, the sealing mechanism and the support body can be of an integrated structure, or can be made into an integrated structure with the film and then inserted into the support body to be clamped and matched with the film in a sealing way, or the sealing mechanism, the support body and the film are of an integrated structure.

The use method and the working principle of the negative pressure scar inhibition paster of the invention are as follows: the negative pressure scar inhibiting paster is tightly attached to the scar or keloid of a patient, and the periphery of the pasting film is tightly attached to the surrounding skin; then use air exhaust equipment such as syringe or aspiration pump with the chamber switch-on of bleeding (for example can adopt the interface with the check valve docks, perhaps insert with syringe needle the elasticity stopper or elasticity closing cap, can not admit air after pulling out), evacuation, the air between pad pasting and the scar and the air in the hole of supporter is taken out, and the outside air is to the pad pasting is exerted pressure, makes the cooling layer chamber of supporter bottom can hug closely skin and exert pressure, applys pressure to the scar surface through this principle to make scar tissue lack blood supply and oxygen suppliment, promote the necrotic apoptosis of the fibroblast in the scar, thereby realize the effect of treatment scar. Meanwhile, the cavity of the cooling layer is pressed, the water sac is broken inside the cavity, and water in the cavity flows out to contact with the particles to dissolve the particles and absorb heat, so that the effect of cooling and cold compress can be achieved.

The support body has certain deformation capacity, so that the support body can be better attached to a non-planar skin surface, and after the interior of the support body is vacuumized, the support body is slightly deformed to apply pressure, and meanwhile, the use comfort and the stability are greatly improved.

Preferably, the upper surface of the water sac is attached to or integrated with the upper wall of the cooling layer cavity; a bag breaking mechanism is arranged on the periphery of the water bag and comprises an installation ring and a bag breaking element, the installation ring is connected with the upper wall of the cooling layer cavity, and the bag breaking element is connected to the inner side of the installation ring and points to the center; in an uncompressed state, a gap is reserved between the water sac and the sac breaking element and is blocked by filled particles; under the pressure state, the water sac can be pressed to be flattened and then can be contacted with the sac breaking element to be punctured for discharging water.

Preferably, the rupture element is selected from one or more of a needle, a serration, and a microblade.

Or, preferably, the water bag is made of an elastic material which can automatically break after being pressed to a certain degree, and a bag breaking mechanism is not required to be arranged.

Preferably, the particulate matter is optionally selected to be water-soluble and heat-absorptive, such as but not limited to sodium bicarbonate, biuret, methylene diurea, ammonium nitrate, and the like.

Preferably, the support is a porous foam or a porous silicone gel. Of course other materials with similar porous structures are possible.

The one-way valve comprises a columnar valve body and a valve core arranged in the columnar valve body;

the columnar valve body is tightly matched in the support body or connected to the support body, and two ends of the valve body are respectively communicated with the air pumping cavity and the outside of the support body;

preferably, the check valve is a flap check valve, the valve core is a plurality of valve flaps, the valve flaps are arranged in the valve body, and the valve flaps are combined and tightly arranged in a conical shape along the circumferential direction and can be opened upwards;

or, the check valve is a ball check valve, the valve core is a ball valve core, the bottom of the columnar valve body is provided with an annular valve core support, the ball valve core is positioned on the valve core support, the bottom of the ball valve core is connected with a spring, and the spring downwards penetrates through the valve core support and the air suction cavity and is connected to the support body.

Of course, other configurations of check valves may be used with appropriate adjustment.

Preferably, the support body is in a shape of a cake or a cone with a small upper part and a big lower part.

Preferably, the bottom surface of the support body can be circular, oval, and can be regular or irregular changeability such as triangle, square, pentagon, hexagon, etc., and can be flexibly adjusted according to the shape of the scar.

Preferably, the supporting body is formed by combining a plurality of detachable supporting blocks. Can be flexibly adjusted according to the shape of the scar.

Preferably, the lower surface of the cooling layer cavity is roughened, for example, by providing anti-slip texture or sanding.

Preferably, a pressing bottom plate can be arranged below the cooling layer cavity; furthermore, the surface of the pressure applying bottom plate is provided with notches, so that the friction force is improved, and the sliding can be avoided.

The invention also aims to disclose a negative pressure scar inhibiting assembly, which comprises the negative pressure scar inhibiting patch, an air exhaust pipe and an air pump, wherein the air exhaust pipe is connected with the air pump, and the tail end of the air exhaust pipe is provided with a plug-in connector which can be tightly connected with the one-way valve, or a needle head which can puncture the elastic plug or the elastic sealing cover.

Preferably, a vacuum meter is arranged on the air suction pump or the air suction pipe.

Preferably, an elastic sealing cap is arranged around the tail of the plug, and the outer wall of the middle section of the plug and the inner wall of the valve body are respectively provided with a protruding sealing ring.

The invention has the beneficial effects that:

the use method and the working principle of the negative pressure scar inhibition paster of the invention are as follows: the negative pressure scar inhibiting paster is tightly attached to the scar or keloid of a patient, and the periphery of the pasting film is tightly attached to the surrounding skin; then an air extracting device such as an injector or an air extracting pump is communicated with the air extracting cavity to perform vacuum pumping, the air between the sticking film and the scar and the air in the hole of the supporting body are extracted, the external air applies pressure to the sticking film, so that the cooling layer cavity at the bottom of the supporting body can be tightly attached to the skin to apply pressure, and the pressure is applied to the surface of the scar by the principle, thereby ensuring that the scar tissue lacks blood supply and oxygen supply, promoting the necrosis and apoptosis of fibroblasts in the scar, and further realizing the effect of treating the scar. Meanwhile, the cavity of the cooling layer is pressed, the water sac is broken inside the cavity, and water in the cavity flows out to contact with the particles to dissolve the particles and absorb heat, so that the effect of cooling and cold compress can be achieved.

The air suction head for the scar-inhibiting paster and the scar-inhibiting pressurizing paster component comprising the air suction head are simple in structure and convenient to use, and are particularly suitable for treating scars on small areas and depressed parts.

Drawings

FIG. 1 is a schematic view of a negative pressure scar suppression patch of the present invention;

FIG. 2 is a schematic exploded view of the negative pressure scar inhibiting patch of the present invention;

FIG. 3 is a cross-sectional view of a preferred support of the present invention;

FIG. 4 is a schematic cross-sectional view of another preferred support body of the present invention;

FIG. 5 is a schematic view of another preferred cake-shaped support of the present invention;

FIG. 6 is a schematic top view of the internal structure of the cooling layer cavity of the present invention;

FIG. 7 is a schematic view of the negative scar suppression assembly of the present invention;

FIG. 8 is a schematic view of a plug of the extraction tube of the present invention.

Reference numerals

Pasting a film 1; support body 2, air suction cavity 21, one-way valve 22, valve body 221, valve clack 222 and columnar valve body 223

A ball valve spool 224, a spool support 225, a spring 226; a cooling layer cavity 3, a water bag 31, a mounting ring 32 and a bag breaking element 33; an air exhaust pipe 4; the suction pump 5, the vacuum gauge 51; the plug 6, the sealing cap 61 and the sealing ring 62.

Detailed Description

The present invention will be further described with reference to the following examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.

Example 1

Fig. 1 and 2 show a negative pressure scar suppressing patch according to a preferred embodiment of the present invention, which includes a patch 1, a support body 2, and a cooling layer cavity 3.

The adhesive film 1 is attached on the support body 2, and the size of the adhesive film 1 is determined by completely covering the support body and enabling the periphery to be attached to the skin.

The support body 2 is a porous structure which can be penetrated by gas and can be slightly deformed under pressure; the support 2 may be made of porous foam or porous silicone gel, although other materials with similar porous structures are possible.

The support body 2 is internally provided with an air suction cavity 21, the porous structure of the support body 2 and the air suction cavity 21 can be communicated with each other, the air suction cavity 21 is internally provided with a one-way valve 22, the upper end outlet of the one-way valve 22 is communicated with the support body 1 and the outside of the film 1, and the lower end inlet of the one-way valve 22 is communicated with the air suction cavity 21.

Preferably, the check valve 22 can be a flap check valve as shown in fig. 3, which includes a valve body 221 and a plurality of flaps 222, wherein the valve body 221 is in a column shape and is tightly fitted above the air pumping chamber 21, the flaps 222 are disposed in the valve body 221, and the flaps 222 are tightly arranged in a tapered shape along a circumferential direction and can be opened upward.

Alternatively, the check valve 22 may also be a ball check valve as shown in fig. 4, which includes a cylindrical valve body 223 and a ball valve core 224, the cylindrical valve body 223 is tightly fitted above the air pumping cavity 21, an annular valve core support 225 is disposed at the bottom of the cylindrical valve body 223, the valve core 224 is disposed on the valve core support 225 and is connected to a spring 226 at the bottom, and the spring 226 downwardly passes through the valve core support 225 and the air pumping cavity 21 and is connected to the support body 2.

The one-way valve 22 and the support body 2 can be of an integral structure, the one-way valve 22 and the film 1 can also be of an integral structure and then inserted and clamped on the support body 2, or the one-way valve 22, the support body 2 and the film 1 can be of an integral structure.

The support body 2 shown in FIGS. 2 to 4 is a tapered shape having a small top and a large bottom, and a porous structure having a pie shape as shown in FIG. 5 may be used. The bottom surface of the support body 2 can be round, oval, regular or irregular changeability such as triangle, square, pentagon, hexagon and the like, and can be flexibly adjusted according to the shape of the scar. The supporting body 2 can also be formed by combining a plurality of detachable supporting blocks, and can be flexibly adjusted according to the shape of the scar.

The cooling layer chamber 3 is attached on the bottom surface of the support body 1, the water bag 31 which can be cracked under pressure is arranged in the cooling layer chamber 3, the cooling layer chamber is filled with the particulate matters which can be dissolved in water and desorb heat, and the particulate matters surround the water bag 31.

Preferably, the upper surface of the water bag 31 is attached to or integrated with the upper wall of the cooling layer cavity 3; as shown in fig. 6, a bag breaking mechanism is arranged on the periphery of the water bag 31, the bag breaking mechanism comprises a mounting ring 32 and a bag breaking element 33, the mounting ring 32 is connected with the upper wall of the cooling layer cavity 3, and the bag breaking element 33 is connected with the inner side of the mounting ring 32 and points to the center; in an uncompressed state, a gap is left between the water bag 31 and the bag breaking element 33 and is blocked by filled particles; under pressure, the water bag 31 is pressed to be squashed and then can contact with the bag breaking element 33 to be punctured and discharged.

Preferably, the rupture element 33 is selected from one or more of a needle, a serration, and a microblade.

Preferably, the particulate material is optionally selected to be water-soluble and heat-absorptive, such as but not limited to sodium bicarbonate, biuret, methylene diurea, ammonium nitrate, and the like.

Preferably, the lower surface of the cooling layer cavity 3 is roughened, for example, by an anti-slip pattern or by a frosted finish.

Preferably, a pressure applying bottom plate can be arranged below the cooling layer cavity 3; furthermore, the surface of the pressure applying bottom plate is provided with notches, so that the friction force is improved, and the sliding can be avoided.

The use method and the working principle of the negative pressure scar inhibition paster of the invention are as follows: the negative pressure scar inhibiting paster is tightly attached to the scar or keloid of a patient, and the periphery of the pasting film is tightly attached to the surrounding skin; then, an air extractor such as an injector or an air pump is used for butt joint with the one-way valve 22, vacuum pumping is carried out, air between the sticking film and the scar and air in the holes of the supporting body are extracted, external air applies pressure to the sticking film, so that the cooling layer cavity at the bottom of the supporting body can be tightly attached to the skin for applying pressure, and the pressure is applied to the surface of the scar according to the principle, thereby ensuring that scar tissues lack blood supply and oxygen supply, promoting the necrosis and apoptosis of fibroblasts in the scar, and further realizing the effect of treating the scar. Meanwhile, the cavity of the cooling layer is pressed, the water sac is broken inside the cavity, and water in the cavity flows out to contact with the particles to dissolve the particles and absorb heat, so that the effect of cooling and cold compress can be achieved.

The support body has certain deformation capacity, not only can be better attached to the non-planar skin surface, but also greatly improves the use comfort and the stability when the interior is vacuumized and slightly deformed for applying pressure.

Example 2

Fig. 7 shows a negative pressure scar inhibiting assembly of the invention, which comprises the negative pressure scar inhibiting patch of embodiment 1, and further comprises an air suction pipe 4 and an air suction pump 5, wherein the air suction pipe 4 is connected with the air suction pump 5, and the tail end of the air suction pipe is provided with a plug 6 which can be tightly connected with a one-way valve 22.

Preferably, the air pump 5 is provided with a vacuum gauge 51; as shown in fig. 8, an elastic sealing cap 61 is arranged around the tail of the plug 6, and protruding sealing rings 62 are respectively arranged on the outer wall of the middle section of the plug 6 and the inner wall of the valve body.

In other embodiments of the present invention, as a sealing mechanism, the one-way valve 22 can be replaced by an elastic plug or an elastic sealing cover to seal the pumping cavity, at this time, pumping air can be performed by puncturing the elastic plug or the elastic sealing cover with a needle, and after the needle is pulled out after pumping air, the elastic plug or the elastic sealing cover can automatically relax to seal the puncturing port, thereby avoiding air leakage and also achieving the effect of one-way pumping air.

The elastic plug or the elastic sealing cover can be made into an integral structure with the support body 2, can also be made into an integral structure with the adhesive film 1 and then inserted and clamped on the support body 2, or can be made into an integral structure with the three.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A negative pressure scar-inhibiting paster is characterized by comprising a pasting film, a supporting body, a sealing mechanism and a cooling layer cavity;

2. The negative pressure scar suppression patch according to claim 1 wherein the upper surface of the water bladder is attached to or integral with the upper wall of the cooling layer cavity; a bag breaking mechanism is arranged on the periphery of the water bag and comprises an installation ring and a bag breaking element, the installation ring is connected with the upper wall of the cooling layer cavity, and the bag breaking element is connected to the inner side of the installation ring and points to the center; in an uncompressed state, a gap is reserved between the water sac and the sac breaking element and is blocked by filled particles; under the pressure state, the water sac can be pressed to be flattened and then can be contacted with the sac breaking element to be punctured for discharging water.

3. The negative pressure scar suppression patch according to claim 2 wherein the rupture element is selected from one or more of a needle, a serration, and a microblade.

4. The negative scar suppression patch according to claim 1 wherein the particulate material is sodium bicarbonate, biuret, methylene diurea, or ammonium nitrate.

5. The negative scar suppression patch according to claim 1 wherein the support is a porous foam or a porous silicone gel.

6. The negative scar suppressing patch as recited in claim 1 wherein

the valve core is provided with a plurality of valve clacks which are arranged in the valve body, and the valve clacks are combined and tightly arranged in a conical shape along the circumferential direction and can be opened upwards;

or the valve core is a spherical valve core, the bottom of the columnar valve body is provided with an annular valve core support, the spherical valve core is positioned on the valve core support, the bottom of the spherical valve core is connected with a spring, and the spring downwards penetrates through the valve core support and the air suction cavity and is connected to the support body.

7. The negative pressure scar suppression patch according to claim 1 wherein the support is pie-shaped or pyramidal with a small top and a large bottom.

8. The negative pressure scar suppression patch according to claim 1 wherein the support is formed by a combination of removable support blocks.

9. A negative pressure scar inhibiting assembly is characterized by comprising the negative pressure scar inhibiting patch as claimed in any one of claims 1 to 8, and further comprising an air suction pipe and an air suction pump, wherein the air suction pipe is connected with the air suction pump, and the tail end of the air suction pipe is provided with a plug-in connector which can be tightly connected with the one-way valve, or a needle head which can puncture the elastic plug or the elastic sealing cover.

10. The negative pressure scar suppression assembly of claim 9 wherein a vacuum gauge is provided on the pump or tube; an elastic sealing cap is arranged around the tail of the plug-in connector, and protruding sealing rings are respectively arranged on the outer wall of the middle section of the plug-in connector and the inner wall of the valve body.