CN107174300B

CN107174300B - Skin wound negative pressure driving flat healing device

Info

Publication number: CN107174300B
Application number: CN201710481225.7A
Authority: CN
Inventors: 张新平
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-22
Filing date: 2017-06-22
Publication date: 2023-09-12
Anticipated expiration: 2037-06-22
Also published as: CN107174300A

Abstract

The application discloses a skin wound negative pressure driving flat healing device, in particular to a skin wound negative pressure driving flat healing device used in the field of skin wound rehabilitation. The application provides a skin wound negative pressure driving leveling healing device which comprises a cofferdam, a flexible connecting belt, a negative pressure suction pipeline and a rigid involution reference platform, wherein a negative pressure channel is arranged on the rigid involution reference platform, the inner wall of a negative pressure cavity is communicated with one side of the reference platform, which faces a wound, of the reference platform, and the negative pressure suction pipeline is used for communicating the inner wall of the negative pressure cavity with the outside of the negative pressure cavity. The application utilizes the cofferdam, the flexible connecting belt and the rigid involution reference platform to enclose a negative pressure cavity. When the rigid involution reference platform is attached to the wound under the action of negative pressure, the layers of the wound skin edge are forcefully restrained from being attached to the reference plane by taking the reference plane of the rigid and flat reference platform as the reference in the depth direction of the wound, and the layering accurate involution and leveling of the wound skin edge are forcefully performed.

Description

Skin wound negative pressure driving flat healing device

Technical Field

The application relates to a skin wound negative pressure driving flat healing device, in particular to a skin wound negative pressure driving flat healing device used in the field of skin wound rehabilitation.

Background

In the fields of human medical dissection and tissue repair, skin tissue is the most basic and important barrier structure inside and outside a human body, and comprises a skin epidermis layer, a dermis layer and a subcutaneous layer. When the barrier is damaged by surgical cutting or trauma, the free wound skin edge is required to be sutured by surgery, so that the original connection structure and connection involution state are restored as soon as possible on the level of wound dissection, and the barrier structure and function of the original skin are restored through skin tissue regeneration.

The regeneration, repair and reconstruction process of the skin tissue comprises the following steps: 1. restoring the continuity and integrity of the anatomical structure of the epidermal layer tissue; namely, the skin epidermis layer cell proliferation covers and is connected with epidermis tissue gaps at two sides of a wound, 2. The continuity and the functionality of the anatomical structure of dermis layer tissue are restored, namely, the dermis layer cell proliferation of the skin is filled and connected with the dermis layer tissue gap left by the wound, 3. The continuity of subcutaneous layer tissue is restored, namely, the subcutaneous layer granulation connective tissue cell proliferation of the skin is filled and connected with the subcutaneous layer tissue gap left by the wound.

In the prior art, various types of involution devices are mainly adopted to solve the problem of involution and closure of two sides of a wound, and the continuity of a skin tissue structure is recovered. However, the prior various involution devices have no technical solution and specific implementation method for ensuring the rapid and accurate layered flat butt joint and precise involution of each layer of skin during the healing period of wounds. Therefore, various kinds of involution devices existing at present inevitably appear in a large number in practical clinical application: 1. wound disunion or delayed union, 2, malformation union (irregular union, stepped union, pimple union, broad bad scar body union), 3, secondary infection rate increase.

For example, in the use of various types of apposition devices currently available, the wound skin edges are free to move in the vertical direction of the wound apposition even though they are pulled together. Therefore, to allow rapid and precise layered flat butt-joint and precise apposition of the layers of the skin edges on both sides of the wound, the actual outcome is to be by fortune rather than by an active control or restraint mechanism. In case that the layers of the skin edges at the two sides of the wound cannot be rapidly and accurately layered, leveled and butted and precisely butted, the following results appear: 1. the new epidermal tissue needs more growth time and more orders of magnitude of the new epidermal tissue are grown to be produced, so that the continuity of the epidermal layer can be barely delayed to be restored; the wound healing time is delayed, the invasion probability of external bacteria is high, and the infection probability is high; even when the epidermis is not actually connected in alignment with the epidermis within days, it can directly lead to failure of wound healing, leaving a chronic, difficult-to-heal wound for the patient to heal, and both economic and health losses are extremely significant. 2. The inability of the new dermis layer tissue to align quickly and accurately, the staggered layer apposition, will result in a large number of wound deformities healed (irregular healing, stepped healing, pimple healing, broad bad scar healing). 3. The volume of the lower tissue layer of the new skin is large, the area of the wound surface to be folded is large, and the movement of the skin edge in the vertical direction of the wound is easy to cause staggered folding. Meanwhile, if the horizontal direction of the wound cannot be quickly layered and smoothly butted and precisely butted, a physical subcutaneous tissue cavity (subcutaneous dead space) structure can be formed with high probability, and if the butted surface of the layer is not actively interfered and controlled to be quickly and accurately aligned and butted, necrotic liquefied material accumulation in the subcutaneous dead space, subcutaneous infection of the wound, subcutaneous abscess of the wound, wound dehiscence, wound disunion and sinus tract generation can be further caused. Can directly lead to wound healing failure, and is extremely huge in economic loss and health loss due to chronic difficult-to-heal wound which is left for patients to heal after a long time.

The skin wound auxiliary healing device in the prior art can provide pulling force for incision involution to a certain extent, but can only simply draw in the skin at two sides of the wound. And the method does not solve the problem of ensuring the layering accurate and flat layering and tight layering of each layer of skin of the skin margin of the wound in the depth direction of the wound, keeping the skin margin flat and non-abnormal healing, and ensuring the normal and rapid healing of the wound without subcutaneous dead space.

In the prior art, partial structures of some devices are also arranged indirectly above the wound to form a structure of a involution reference plane, and an implementation path is indirectly provided for layering accurate involution and layering tight involution of each layer of skin under the anatomical meaning. However, the folding reference plane formed by utilizing the buckling and bending deformation of the negative pressure cavity shell under the action of negative pressure is required to meet the rigidity and flatness performance required by the folding reference plane, and the folding reference plane is quite undesirable or can not practically solve the problems of layering precise folding and layering compact folding in anatomical sense.

Disclosure of Invention

The application aims to solve the technical problem of providing a skin wound negative pressure driving butt-joint device which ensures that the skin layers at the skin edges of a wound are laminated and precisely butt-joint, butt-joint and laminated and tightly butt-joint in the anatomical sense when the skin at the two sides of the wound is folded, ensures that the skin edges are butt-joint smoothly and healed without deformity, ensures that the subcutaneous dead cavity wound is healed normally and quickly, and obviously enhances the skin wound healing effect.

In order to solve the technical problems, the skin wound negative pressure driving leveling healing device comprises a cofferdam, a flexible connecting belt, a negative pressure suction pipeline and a rigid leveling reference platform, wherein a reference plane is arranged on the rigid leveling reference platform, the inner side of the flexible connecting belt is connected with the rigid leveling reference platform, the outer side of the flexible connecting belt is connected with the cofferdam, the flexible connecting belt and the rigid leveling reference platform enclose a negative pressure cavity, a negative pressure channel is arranged on the rigid leveling reference platform, the negative pressure channel communicates the inner wall of the negative pressure cavity with one side of the reference plane facing a wound, and the negative pressure suction pipeline communicates the inner wall of the negative pressure cavity with the outer part of the negative pressure cavity.

Further, a locking device is arranged on the cofferdam, and an adhesive coating is arranged on the skin contact surface of the cofferdam.

Further, the locking device is a lock catch and a ratchet bar.

Further, the negative pressure channel is a pipeline arranged in the rigid involution reference platform.

Further, the negative pressure channel is a guide groove arranged on the rigid involution reference platform.

Further, one end of the negative pressure channel is communicated with the inner wall of the negative pressure cavity, and the other end of the negative pressure channel passes through the reference plane to be communicated with the wound surface of the wound.

Further, the reference plane is provided with an anti-infection, pain-relieving and hemostatic functional layer.

The beneficial effects of the application are as follows: the application utilizes the cofferdam, the flexible connecting belt and the rigid involution reference platform to enclose a negative pressure cavity; when the cofferdam sections on two sides of the skin wound are drawn towards the middle position of the wound by using external force such as a locking device, the anatomical alignment and alignment of the skin edge of the wound are completed, and the wound closure is primarily completed. When the rigid involution reference platform is attached to a wound under the action of negative pressure, each layer of skin at the skin edge of the wound is ensured to be positioned at the wound in the depth direction of the wound, the reference plane of the rigid and smooth reference platform is taken as a reference, each layer of skin edge of the wound is forcefully restrained to be attached to the reference plane, the layering accurate involution and the opposite (namely the anatomical contraposition and the opposite) of the skin edge of the wound are forcefully performed, and the involution, the smoothness and the non-deformity healing of the skin edge of the wound can be ensured. When negative pressure acts on the surface of each layer of skin of the wound through a negative pressure channel on the rigid involution reference platform, the physical cavity remained between the surfaces of the two sides of the wound is further forcedly eliminated, and the elimination of subcutaneous dead space is ensured; ensuring the normal and rapid healing of the wound.

The rigid involution reference platform is required to be independent and non-deformable and positioned right above the wound, so that the formed reference plane is ensured to be rigid and flat, and the reference plane is used as a reference for anatomical contraposition and leveling of the wound; therefore, the flexible connecting belt is arranged as flexible transitional connection between the rigid involution reference platform and the cofferdam, so that the independence of the rigid involution reference platform can be ensured, the deformation of the involution reference platform caused by external force transmitted by other structures is avoided, the effectiveness and the certainty of a reference plane are ensured, and the involution of the skin edge of the wound is ensured to be smooth and free from deformity.

Drawings

FIG. 1 is a schematic illustration of a wound prior to being drawn flat;

FIG. 2 is a schematic drawing of the skin on both sides of a wound drawn to a flat back end using the present application;

FIG. 3 is a schematic diagram of a top view of the present application;

parts, parts and numbers in the figures: the device comprises a cofferdam 1, a flexible connecting belt 2, a rigid involution reference platform 3, a reference plane 4, a negative pressure channel 5, a lock catch 6, a ratchet 7, a negative pressure suction pipeline 8 and an adhesive coating 9.

Detailed Description

The application is further described below with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, the skin wound negative pressure driving butt-joint healing device comprises a cofferdam 1, a flexible connecting belt 2, a negative pressure suction pipeline 8 and a rigid butt-joint reference platform 3, wherein the rigid butt-joint reference platform 3 is provided with a reference plane 4, the inner side of the flexible connecting belt 2 is connected with the rigid butt-joint reference platform 3, the outer side of the flexible connecting belt 2 is connected with the cofferdam 1, the flexible connecting belt 2 and the rigid butt-joint reference platform 3 enclose a negative pressure cavity, the rigid butt-joint reference platform 3 is provided with a negative pressure channel 5, the negative pressure channel 5 communicates the inner wall of the negative pressure cavity with the side of the reference plane 4, and the negative pressure suction pipeline 8 communicates the inner wall of the negative pressure cavity with the outer part of the negative pressure cavity. The negative pressure suction line 8 may be provided with a negative pressure switch, which connects the negative pressure suction device to the negative pressure suction line. Wherein cofferdam 1 on the one hand is laminated with skin, drives the skin of wound both sides to fold to the centre, and on the other hand can effectively prevent skin wound seepage liquid unordered flow, makes the seepage liquid in time discharge outside the negative pressure cavity through negative pressure channel 5 to avoid the seepage liquid to pile up in skin wound department, hinder wound healing. The rigid involution reference platform 3 is made of rigid materials, has strong rigidity, and deforms very little under the action of external forces such as negative pressure, so that the reference plane 4 arranged on the rigid involution reference platform can stably maintain the form of a precise plane. The reference plane 4 is arranged on the side of the rigid involution reference platform 3 facing towards the skin wound. And the flexible connecting belt 2 for connecting the cofferdam 1 and the rigid involution reference platform 3 adopts flexible materials or structures which are easy to deform. The cofferdam 1, the flexible connecting belt 2 and the rigid involution reference platform 3 enclose a negative pressure cavity, and a negative pressure environment is provided for skin wounds. One end of the negative pressure switch can be connected with external negative pressure pumping equipment, one end of the negative pressure channel is communicated with the inner wall of the negative pressure cavity, and the other end of the negative pressure channel passes through the reference plane and is communicated with the wound surface of the wound. When the healing device is used, the cofferdam 1 on two sides of a skin wound is drawn towards the middle position of the wound by using external force, meanwhile, the space in the negative pressure cavity is pumped into negative pressure, the rigid involution standard platform 3 has a trend of moving towards the skin wound under the action of the negative pressure, the trend enables the flexible connecting belt 2 to deform, and the rigid involution standard platform 3 moves towards the skin wound along with the deformation of the flexible connecting belt 2 so as to be close to the wound. At the same time, the skin at both sides of the wound will gradually cling to the reference plane 4 under the negative pressure. The cavities at various parts of the skin wound, especially the gaps between the layers of the skin, gradually eliminate during the sticking process. As long as the reference plane 4 always keeps the accurate plane shape, the skins at the two sides of the wound are precisely aligned layer by taking the plane as the reference under the action of negative pressure, so that the skins at the two sides of the wound are restored to the optimal position state. The combination of the flexible connecting belt 2 and the rigid involution reference platform 3 prevents external force generated by other structures of the device from acting on the rigid involution reference platform 3, so that the rigid involution reference platform 3 is stressed to deform, and meanwhile, the rigid involution reference platform 3 is strong in rigidity and difficult to deform by utilizing the characteristic that the rigid involution reference platform 3 is strong in rigidity, so that the reference plane 4 can be stably maintained in the shape of a precise plane in the process of wound lamination alignment. According to the application, a space which is communicated with the inner wall of the negative pressure cavity and one side of a wound of the reference plane 4 is arranged on the rigid involution reference platform 3, so that the process of negative pressure driving and healing is divided into two steps, the first step of rigid involution reference platform 3 moves under negative pressure driving and finally the reference plane 4 is clung to the skin, at the moment, the interior of the negative pressure cavity is divided into a space (a second negative pressure chamber) surrounded by a skin wound and the reference plane 4, and the rest negative pressure space (a first negative pressure chamber) of the second negative pressure chamber is divided into the interior of the negative pressure cavity, and the skin wound gap in the second negative pressure chamber is gradually eliminated under negative pressure driving.

A locking device is arranged on the cofferdam 1 and an adhesive coating 9 is arranged on the cofferdam 1. The locking device on the cofferdam 1 can be used for pulling the cofferdam 1 to move towards the middle of a wound so as to drive the skin on two sides of the wound to fold, and when the cofferdam 1 moves to a position capable of guaranteeing the skin to fold, the cofferdam 1 is locked by the locking device so as to prevent the cofferdam 1 from being loosened under the action of skin tension or other external forces. The adhesive coating 9 is arranged on the skin contact surface of the cofferdam 1, which helps the cofferdam 1 to cling to the skin and helps the skin to fold.

The locking device may employ a combination of a shackle 6 and a ratchet 7. Wherein the lock catch 6 and the ratchet 7 can be respectively arranged on the cofferdam 1 at two sides of the skin wound, and the ratchet 7 passes through the lock catch 6. The medical staff pulls the ratchet 7 to move relative to the lock catch 6 during operation, so that the cofferdam 1 pulls the skin at two sides of the wound to fold towards the middle, and the lock catch 6 is used for locking the ratchet 7 when the skin folds to an ideal position.

The negative pressure channel 5 is a pipeline arranged in the rigid involution reference platform 3. A negative pressure channel 5 is connected to the inner wall of the negative pressure cavity and the wound surface of the wound, which channel may take the form of a tube embedded in the rigid involution reference platform 3.

The negative pressure channel 5 is a guide groove arranged on the rigid involution reference platform 3. The negative pressure channel 5 may also be formed in the form of a slot in the rigid involution reference platform 3.

The reference plane 4 is provided with an anti-infection pain-relieving hemostatic layer. In order to prevent wound infection, a multifunctional coating can be arranged on the datum plane 4, and the coating can effectively inhibit bacterial growth and reproduction and help patients stop bleeding and relieve pain.

Claims

1. Skin wound negative pressure drive is to flat healing ware, its characterized in that: the device comprises a cofferdam (1), a flexible connecting belt (2), a negative pressure suction pipeline (8) and a rigid involution reference platform (3), wherein a reference plane (4) is arranged on the rigid involution reference platform (3), the rigid involution reference platform (3) is independently arranged in the cofferdam (1), the inner side of the flexible connecting belt (2) is connected with the rigid involution reference platform (3), the outer side of the flexible connecting belt (2) is connected with the cofferdam (1), the flexible connecting belt (2) and the rigid involution reference platform (3) form a negative pressure cavity, a negative pressure channel (5) is arranged on the rigid involution reference platform (3), the inner wall of the negative pressure cavity is communicated with one side, facing a wound, of the reference plane (4), and the negative pressure suction pipeline (8) is used for communicating the inner wall of the negative pressure cavity with the outer part of the negative pressure cavity. The reference plane (4) and the skin wound can enclose a second negative pressure chamber; one end of the negative pressure channel (5) is communicated with the second negative pressure chamber.

2. The skin wound negative pressure driven flat healing device according to claim 1, wherein: a locking device is arranged on the cofferdam (1), and an adhesive coating (9) is arranged on the skin contact surface of the cofferdam (1).

3. The skin wound negative pressure driven flat healing device according to claim 2, wherein: the locking device comprises a lock catch (6) and a ratchet strip (7).

4. The skin wound negative pressure driven flat healing device according to claim 1, wherein: the negative pressure channel (5) is a pipeline arranged in the rigid involution reference platform (3).

5. The skin wound negative pressure driven flat healing device according to claim 1, wherein: the negative pressure channel (5) is a guide groove arranged on the rigid involution reference platform (3).

6. The skin wound negative pressure driven flat healing device according to claim 1, wherein: an anti-infection pain-relieving hemostatic layer is arranged on the reference plane (4).