CN113995524A - Skin stretching device capable of simultaneously using negative pressure suction - Google Patents
Skin stretching device capable of simultaneously using negative pressure suction Download PDFInfo
- Publication number
- CN113995524A CN113995524A CN202111178337.8A CN202111178337A CN113995524A CN 113995524 A CN113995524 A CN 113995524A CN 202111178337 A CN202111178337 A CN 202111178337A CN 113995524 A CN113995524 A CN 113995524A
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- China
- Prior art keywords
- winding shaft
- skin
- negative pressure
- wire
- pressure suction
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- 238000004804 winding Methods 0.000 claims abstract description 75
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 208000015181 infectious disease Diseases 0.000 abstract description 4
- 208000027418 Wounds and injury Diseases 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 210000004872 soft tissue Anatomy 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 208000032544 Cicatrix Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010072170 Skin wound Diseases 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000037387 scars Effects 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/02—Devices for expanding tissue, e.g. skin tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/05—Bandages or dressings; Absorbent pads specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Dermatology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pathology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Vascular Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a skin stretching device capable of simultaneously using negative pressure suction, which comprises: a porous hose arranged in a first direction; at least a portion of the base dressing is in contact with the porous hose; the traction line is arranged along a second direction which is crossed with the first direction, one end of the traction line is connected with the traction plate, and the traction plate is connected with the skin; the wire winding mechanism comprises: the lower end of the winding shaft is arranged in the winding shaft outer cylinder above the base dressing, the winding shaft is arranged at the lower end of the winding shaft outer cylinder, and the knob is matched with the upper end of the winding shaft, wherein a wire outlet hole is formed in the winding shaft outer cylinder, the other end of the tension wire is connected with the winding shaft through the wire outlet hole, and one end of the tension wire moves towards the winding shaft or one end of the tension wire is allowed to move away from the winding shaft by rotating the winding shaft. The invention can realize the traction and the negative pressure suction of the skin at the same time, and can avoid infection by using the technology of the negative pressure suction while carrying out the skin stretching operation.
Description
Technical Field
The invention relates to the technical field of VSD negative pressure suction, in particular to a skin stretching device capable of simultaneously using negative pressure suction.
Background
VSD is a therapeutic method that a dressing with a drainage tube inside is used for covering or filling the wound surface with skin and soft tissue defects, the wound surface is sealed by a biological semipermeable membrane to form a sealed space, finally the drainage tube is connected with a negative pressure source, and the wound surface healing and the infection are promoted by controllable negative pressure.
On the other hand, soft tissue defects of the skin are common surgical problems in clinic, and the causes of the defects include tumors, scars, trauma, inflammation, operation, pathological changes of the skin and the like. Under the condition that the skin wound edge has large tension and can not be directly sutured, the skin is usually repaired by adopting a skin grafting or flap transferring mode. The skin stretching technology developed in recent years utilizes the looseness and the extensibility of skin, and a stretching device is used for stretching skin edges on two sides of a wound to the center so as to achieve the purposes of gradually reducing the wound and finally suturing and eliminating the wound surface.
VSDs work well to prevent infection, but during use they leave the skin in a retracted state and adhere to deep tissue, preventing direct closure of the wound at a later time. On the other hand, in the prior art, the skin stretching device cannot perform VSD suction in the using process, and because the skin stretching is a slow process, the wound surface can only be wrapped by the traditional dressing in the process, so that the wound surface and even deep tissues (muscles, tendons, bones and joints) are easily infected to cause serious consequences.
Disclosure of Invention
In view of the above, the present invention provides a skin stretching device capable of simultaneously using negative pressure suction.
The technical scheme adopted by the invention is as follows:
a skin stretching device capable of simultaneously using negative pressure suction, comprising:
a porous hose arranged in a first direction;
a base dressing, at least a portion of the base dressing being in contact with the porous hose;
the skin stretching device comprises a stretching wire and a traction plate, wherein the stretching wire is arranged along a second direction which is intersected with the first direction, one end of the stretching wire is connected with the traction plate, and the traction plate is connected with the skin;
wire winding mechanism, wire winding mechanism includes: the bottom dressing comprises a winding shaft outer cylinder arranged above the bottom dressing, a winding shaft with the lower end arranged inside the winding shaft outer cylinder, and a knob matched with the upper end of the winding shaft, wherein a wire outlet is formed in the winding shaft outer cylinder, the other end of the tensile wire is connected with the winding shaft through the wire outlet, and one end of the tensile wire moves towards the winding shaft or is allowed to move away from the winding shaft by rotating the winding shaft.
The skin stretching device capable of simultaneously using negative pressure suction comprises: the biological semipermeable membrane covers the skin and the traction plate.
The skin stretching device capable of simultaneously using negative pressure suction is characterized in that the winding shaft is provided with a ratchet wheel.
The skin stretching device capable of simultaneously using negative pressure suction is characterized in that the outer barrel of the winding shaft is provided with a pawl hole, and the ratchet wheel is positioned at the pawl hole;
the wire winding shaft further comprises a pawl, the pawl is connected with the outer barrel of the wire winding shaft through an elastic part or an elastic part, or one side wall of the pawl hole extends to the other side wall of the pawl hole to form the pawl;
the pawl is located at the pawl hole and matched with the ratchet wheel.
The skin stretching device capable of simultaneously using negative pressure suction is characterized in that a sealing structure is arranged between the winding shaft and the outer barrel of the winding shaft, and the sealing structure is positioned between the ratchet wheel and the wire outlet hole.
The skin stretching device capable of simultaneously using negative pressure suction comprises a plurality of winding mechanisms, and the winding mechanisms are arranged along the first direction.
In the skin stretching device capable of simultaneously using negative pressure suction, each of the plurality of winding mechanisms is provided with two stretching wires and two traction plates, and the two stretching wires are arranged on two sides of the winding mechanism along the second direction.
The skin stretching device capable of simultaneously using negative pressure suction as described above, wherein the porous hose is disposed through the base dressing.
The skin stretching device capable of simultaneously using negative pressure suction comprises: the porous bottom connecting plate is arranged on the bottom dressing, and the lower end of the winding mechanism is detachably and fixedly connected with the porous bottom connecting plate.
The skin stretching device capable of simultaneously using negative pressure suction is characterized in that the stretching wire is also provided with a soft sleeve.
Due to the adoption of the technology, compared with the prior art, the invention has the following positive effects:
(1) the invention can realize the traction and the negative pressure suction of the skin at the same time, and can avoid infection by using the technology of the negative pressure suction while carrying out the skin stretching operation.
Drawings
FIG. 1 is a schematic view of a skin retractor of the present invention that can simultaneously use negative pressure suction.
Fig. 2 is a schematic view of the skin stretching device of the present invention which can simultaneously use negative pressure suction.
Fig. 3 is a schematic view of the skin stretching device of the present invention which can simultaneously use negative pressure suction.
Fig. 4 is a schematic view of the winding mechanism of the skin stretching device of the present invention which can simultaneously use negative pressure suction.
Fig. 5 is a cross-sectional view of the winding mechanism of the skin retractor of the present invention that can simultaneously use negative pressure suction.
In the drawings: 1. a porous hose; 2. a base dressing; 3. stretching the wire; 4. a traction plate; 51. a spool outer cylinder; 52. a spool; 53. a knob; 6. a semipermeable biological membrane; 71. a ratchet wheel; 72. a pawl; 73. a pressing part; 8. a porous bottom connecting plate.
Detailed Description
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
Fig. 1 is a schematic view of a skin stretching apparatus capable of simultaneously using negative pressure suction according to the present invention, fig. 2 is a schematic view of a skin stretching apparatus capable of simultaneously using negative pressure suction according to the present invention, fig. 3 is a schematic view of a skin stretching apparatus capable of simultaneously using negative pressure suction according to the present invention, fig. 4 is a schematic view of a winding mechanism of a skin stretching apparatus capable of simultaneously using negative pressure suction according to the present invention, fig. 5 is a cross-sectional view of a winding mechanism of a skin stretching apparatus capable of simultaneously using negative pressure suction according to the present invention, and fig. 1 to 5 show a skin stretching apparatus capable of simultaneously using negative pressure suction according to a preferred embodiment, including: the disposable dressing comprises a porous hose 1, a bottom dressing 2, a stretching wire 3 and a traction plate 4, wherein the porous hose 1 is arranged along a first direction, at least one part of the bottom dressing 2 is in contact with the porous hose 1, the stretching wire 3 is arranged along a second direction intersecting with the first direction, one end of the stretching wire 3 is connected with the traction plate 4, and the traction plate 4 is connected with the skin.
Further, as a preferred embodiment, the skin stretching device capable of simultaneously using negative pressure suction further comprises: wire winding mechanism, wire winding mechanism includes: the base dressing comprises a winding shaft outer cylinder 51 arranged above the base dressing 2, a winding shaft 52 with the lower end arranged inside the winding shaft outer cylinder 51, and a knob 53 matched with the upper end of the winding shaft 52, wherein a wire outlet is formed in the winding shaft outer cylinder 51, the other end of the tension wire 3 is connected with the winding shaft 52 through the wire outlet, and one end of the tension wire 3 moves towards the winding shaft 52 or one end of the tension wire 3 is allowed to move away from the winding shaft 52 by rotating the winding shaft 52. In other words, the tensile wire 3 is tightened by rotating the spool 52, and the tensile wire 3 is loosened by reversely rotating the spool 52. Thereby achieving stretching and adjustment of the skin.
Preferably, the base dressing 2 is trapezoidal in shape. Preferably, the two sides of the bottom dressing 2 are provided with inclined surfaces, and the skin is pulled along the inclined surfaces of the bottom dressing 2 to prevent the skin from rolling inwards the wound.
Further, as a preferred embodiment, the skin stretching device capable of simultaneously using negative pressure suction further comprises: the biological semipermeable membrane 6, the biological semipermeable membrane 6 covers the skin and the traction plate 4.
Further, as a preferred embodiment, the spool 52 is provided with a ratchet 71.
Further, as a preferred embodiment, the spool outer cylinder 51 is provided with a pawl hole, and the ratchet 71 is located at the pawl hole.
Further, as a preferred embodiment, a pawl 72 is further included, and the pawl 72 is connected to the spool outer cylinder 61 through an elastic member or an elastic portion.
Further, in the present embodiment, as shown in fig. 4, one side wall (right side wall) of the pawl hole extends toward the other side wall (left side wall) of the pawl hole to form the pawl 72.
Further, in the present embodiment, the pawl 72 is extended to the direction of the side wall (right side wall) near the outer surface of the side wall (right side wall) to form the pressing portion 73, that is, the pawl 72 and the pressing portion 73 have opposite extending directions, and the pawl 72 can be disengaged from the ratchet 71 by the user pressing the pressing portion 73.
Further, as a preferred embodiment, the pawl 72 is located at a pawl hole and mates with the ratchet 71. Specifically, the pawl 72 is normally engaged with the ratchet 71, and when the user presses the pressing portion 73, the pawl 72 is disengaged from the ratchet 71, and when the user releases the pressing portion 73 again, the pawl 72 is automatically engaged with the ratchet 71 again.
The unidirectional rotation and fixation of the spool 52 are achieved by the cooperation of the ratchet 71 and the pawl 72.
Further, as a preferred embodiment, a sealing structure is provided between the spool 52 and the spool outer cylinder 51, and the sealing structure is located between the ratchet 71 and the outlet hole.
Preferably, the sealing structure is a plurality of sealing rings provided between the bobbin 52 and the bobbin outer cylinder 51.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope and the implementation manner of the present invention.
The present invention also has the following embodiments in addition to the above:
in a further embodiment of the present invention, a plurality of winding mechanisms are included, each of the plurality of winding mechanisms being arranged in the first direction.
In a further embodiment of the present invention, each of the plurality of winding mechanisms is provided with two tension wires 3 and two traction plates 4, and the two tension wires 3 are disposed on two sides of the winding mechanism along the second direction.
In the present embodiment, please refer to fig. 5, the two stretching wires 3 are substantially the same stretching wire, the middle portion of the same stretching wire is wound on the winding shaft 52, and the two ends of the same stretching wire can be retracted toward the winding shaft 52 at equal distance by rotating the winding shaft 52, so as to achieve the stretching of the skin on both sides.
In a further embodiment of the invention, a porous hose 1 is arranged through the base dressing.
In a further embodiment of the present invention, the method further comprises: the porous bottom connecting plate 8 is arranged on the bottom dressing 2, and the lower end of the winding mechanism is detachably and fixedly connected with the porous bottom connecting plate 8.
In a further embodiment of the invention, a soft sleeve (not shown) is provided on the tension wire 3.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. A skin stretching device capable of simultaneously using negative pressure suction, comprising:
a porous hose arranged in a first direction;
a base dressing, at least a portion of the base dressing being in contact with the porous hose;
the skin stretching device comprises a stretching wire and a traction plate, wherein the stretching wire is arranged along a second direction which is intersected with the first direction, one end of the stretching wire is connected with the traction plate, and the traction plate is connected with the skin;
wire winding mechanism, wire winding mechanism includes: the bottom dressing comprises a winding shaft outer cylinder arranged above the bottom dressing, a winding shaft with the lower end arranged inside the winding shaft outer cylinder, and a knob matched with the upper end of the winding shaft, wherein a wire outlet is formed in the winding shaft outer cylinder, the other end of the tensile wire is connected with the winding shaft through the wire outlet, and one end of the tensile wire moves towards the winding shaft or is allowed to move away from the winding shaft by rotating the winding shaft.
2. The skin stretching device capable of simultaneously using negative pressure suction as claimed in claim 1, further comprising: the biological semipermeable membrane covers the skin and the traction plate.
3. The skin stretching device capable of simultaneously using the negative pressure suction as claimed in claim 1, wherein the winding shaft is provided with a ratchet.
4. The skin stretching device capable of simultaneously using the negative pressure suction as claimed in claim 3, wherein the outer barrel of the spool is provided with a pawl hole, and the ratchet wheel is positioned at the pawl hole;
the wire winding shaft further comprises a pawl, the pawl is connected with the outer barrel of the wire winding shaft through an elastic part or an elastic part, or one side wall of the pawl hole extends to the other side wall of the pawl hole to form the pawl;
the pawl is located at the pawl hole and matched with the ratchet wheel.
5. The skin stretching device capable of simultaneously using the negative pressure suction as claimed in claim 4, wherein a sealing structure is provided between the spool and the spool outer cylinder, and the sealing structure is located between the ratchet wheel and the outlet hole.
6. The skin retractor according to claim 1 wherein a plurality of said winding mechanisms are included, each of said plurality of winding mechanisms being arranged along said first direction.
7. The skin stretching device capable of simultaneously using negative pressure suction as claimed in claim 6, wherein each of said plurality of winding mechanisms is provided with two said stretching wires and two said pulling plates, and said two stretching wires are provided on both sides of said winding mechanism along said second direction.
8. The simultaneous negative pressure suction skin retractor according to claim 1 wherein the porous hose is disposed through the base dressing.
9. The skin stretching device capable of simultaneously using negative pressure suction as claimed in claim 1, further comprising: the porous bottom connecting plate is arranged on the bottom dressing, and the lower end of the winding mechanism is detachably and fixedly connected with the porous bottom connecting plate.
10. The skin stretching device capable of simultaneously using the negative pressure suction as claimed in claim 1, wherein a soft sleeve is further provided on the stretching wire.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111178337.8A CN113995524A (en) | 2021-10-09 | 2021-10-09 | Skin stretching device capable of simultaneously using negative pressure suction |
| PCT/CN2022/122408 WO2023056878A1 (en) | 2021-10-09 | 2022-09-29 | Skin stretcher capable of simultaneously using negative pressure suction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111178337.8A CN113995524A (en) | 2021-10-09 | 2021-10-09 | Skin stretching device capable of simultaneously using negative pressure suction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113995524A true CN113995524A (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111178337.8A Pending CN113995524A (en) | 2021-10-09 | 2021-10-09 | Skin stretching device capable of simultaneously using negative pressure suction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113995524A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023056878A1 (en) * | 2021-10-09 | 2023-04-13 | 上海市第六人民医院 | Skin stretcher capable of simultaneously using negative pressure suction |
-
2021
- 2021-10-09 CN CN202111178337.8A patent/CN113995524A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023056878A1 (en) * | 2021-10-09 | 2023-04-13 | 上海市第六人民医院 | Skin stretcher capable of simultaneously using negative pressure suction |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20220201 |