CN108742926B - Skin taking area outer contour cutting device - Google Patents
Skin taking area outer contour cutting device Download PDFInfo
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- CN108742926B CN108742926B CN201810601660.3A CN201810601660A CN108742926B CN 108742926 B CN108742926 B CN 108742926B CN 201810601660 A CN201810601660 A CN 201810601660A CN 108742926 B CN108742926 B CN 108742926B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 60
- 238000003825 pressing Methods 0.000 claims abstract description 99
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000005056 compaction Methods 0.000 abstract 2
- 241001131688 Coracias garrulus Species 0.000 description 86
- 230000007547 defect Effects 0.000 description 13
- 241001465754 Metazoa Species 0.000 description 7
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 230000035876 healing Effects 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010171 animal model Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000036074 healthy skin Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D1/00—Surgical instruments for veterinary use
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- Zoology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a skin taking area outer contour cutting device, which comprises: the compaction unit is used for compacting the skin taking area and comprises a pressing plate, and the outer periphery of the pressing plate is matched with the outer contour of the skin taking area; the cutting unit is used for cutting the outline of the skin taking area and comprises a cutter rest, the top end of the cutter rest is in running fit with the cutting unit, and a first limiting mechanism used for preventing the cutter rest from being separated from the pressing unit is arranged between the cutter rest and the pressing unit; the bottom end of the knife rest is provided with a cutter, and the cutter comprises a knife handle and a blade arranged on the knife handle; the bottom end of the knife rest is in rolling fit with the pressing plate, and a knife rest movement track limiting mechanism for driving the blade to be always tightly attached to the outer periphery of the pressing plate is arranged between the knife rest and the pressing plate. The compaction unit compacts the skin taking area, so that skin folds in the skin taking area are avoided, and the thickness of the skin at each part of the skin taking area can be ensured to be consistent; the cutter rest movement track limiting mechanism ensures that the cutter blade can not scratch the skin taking area, and ensures that the outline curve of the skin taking area is smooth.
Description
Technical Field
The invention belongs to the field of animal experiment instruments, and particularly relates to a skin taking area outer contour cutting device.
Background
In experimental studies of skin defects in animals, it is often necessary to involve cutting the entire or upper skin of the appropriate area to form a model of the skin defect. In the process, the skin defect with the outline (such as circular shape and oval shape) of the smooth curve is a common skin-taking shape, so that the periphery of the skin defect area can be ensured to have a relatively consistent shape, the growth trend of each boundary skin can be conveniently and intuitively judged, and the healing condition can be evaluated.
In the repair of skin defects, it is also often necessary to remove the skin from a healthy skin area and to graft the skin sheet to the skin defect area. However, the repair of the skin defect area is focused on in the operation, and the degree of focus is insufficient after the healing of the skin removing area, which is obvious from the related skin removing procedure. The skin removing devices currently used in skin removing operations can be generally divided into two categories: (1) The traditional roller dermatome is characterized in that the dermatome is very large in the cut dermatome, the edges of the dermatome are quite irregular, the thickness of the cut dermatome is also uneven, and the influence of the pressure applied by the hand of a cutter holder is great; (2) The skin removing device is used for cutting the skin with the diameter of 0.5-5 mm, and the device usually needs to use a skin test needle to bulge a certain part of the body and then use a skin removing knife of the skin removing device to remove the skin. Although the device can cut the skin sheet with the outline of the smooth curve, for the microparticle skin with small diameter, the effect of slight difference of thickness on transplantation is small, and once the device is used for forming the skin defect wound surface for animal experiments, the difference of thickness can be amplified, so that the experiments are error.
Therefore, the existing skin removing equipment for removing skin to carry out transplanting repair cannot be used in experimental researches on skin defect animals, and the prior art is lack of equipment capable of simultaneously marking and positioning the outer contour of a skin removing area and then cutting the outer contour.
In the experimental research process of skin defect animals, most of the animal skin is manually drawn on the body part of the experimental animal in advance, and then the skin is cut by a skin cutter according to the drawn circular mark; or adopting a round article (such as a coin) as a medium, pressing the round medium on the peeling area, and then directly cutting the round medium by a blade around the periphery of the round medium to form the peeling boundary. These operations have the disadvantage that: (1) Because the skin taking range is smaller, the blade is improperly operated, and various problems such as the change of the size of an actual cutting area, uneven saw-tooth-shaped cutting surface edge, the cutting of the skin taking area by the blade and the like are easily caused by skin wrinkles; (2) Different experiments have different requirements on the skin taking depth of the skin taking area, no auxiliary positioning equipment is provided, and operators are easy to occur the condition of uneven skin thickness only by experience operation, so that experimental errors are increased.
Based on the above problems, it is necessary to develop a skin taking region outline cutting device specially used for experimental study of skin defect animals.
Disclosure of Invention
The invention aims to provide a cutting device for the outer contour of a skin taking area, which not only can be used for cutting a round skin taking area, but also can be used for cutting the outer contour of an elliptical skin taking area or the outer contour of an irregularly-shaped skin taking area, and has the advantages of convenience in cutting, uniform cutting depth and smooth section.
In order to achieve the above object, the present invention has the following technical scheme:
an outer contour cutting device for a skin taking area, comprising:
the pressing unit is used for pressing the skin taking area and comprises a pressing plate, and the outer periphery of the pressing plate is matched with the outer contour of the skin taking area;
The cutting unit is used for cutting the outline of the skin taking area and comprises a cutter rest, the top end of the cutter rest is in running fit with the cutting unit, and a first limiting mechanism used for preventing the cutter rest from being separated from the pressing unit is arranged between the cutter rest and the pressing unit; the bottom end of the knife rest is provided with a cutter, and the cutter comprises a knife handle and a blade arranged on the knife handle;
the bottom end of the knife rest is in rolling fit with the pressing plate, and a knife rest movement track limiting mechanism for driving the blade to be always tightly attached to the outer periphery of the pressing plate is arranged between the knife rest and the pressing plate.
In the cutting process, an operator drives the knife rest to enable the top end of the knife rest to rotate around the compression unit, the roller at the bottom end of the knife rest rolls along the edge of the pressing plate, and the force applied by the operator on the knife rest drives the knife rest to move on one hand and also converts the force into the force applied to the center of the compression unit and the edge of the pressing plate on the other hand, so that the pressing plate is driven to compress the skin taking area, skin folds in the skin taking area are avoided, the skin thickness of each part of the skin taking area after uniform compression can be ensured to be consistent, and uniform compression-uniform cutting is realized; in the moving process of the knife rest, the knife rest movement track limiting mechanism enables the knife blade to be always tightly attached to the outer periphery of the pressing plate, even if the knife blade is in an irregularly-shaped skin taking area, the knife blade can not scratch the skin taking area, and the smoothness of the outer contour curve of the skin taking area is ensured.
In the skin taking area outer contour cutting device, the pressing unit further comprises a conical cylinder arranged on the top surface of the pressing plate, and a pressing rod is arranged at the top end of the conical cylinder; the knife rest comprises a sleeve block and a supporting rod which are mutually hinged, the sleeve block is provided with a first through hole for a pressing rod to pass through, one end of the pressing rod, which passes through the first through hole, is provided with an anti-falling piece, and the cutter is arranged at the bottom end of the supporting rod.
In the skin taking area outer contour cutting device, the supporting rod comprises a first branch supporting rod and a second branch supporting rod which are arranged in a split mode, wherein the first branch supporting rod is hinged with the roller frame, and the second branch supporting rod is hinged with the sleeve block; the tool rest movement track limiting mechanism comprises:
The accommodating cavity is arranged at the end part of the second branch supporting rod and used for accommodating the first branch supporting rod, and a reset spring is abutted between the first branch supporting rod and the inner wall of the accommodating cavity;
The shape of the convex edge is similar to that of the outer contour of the skin taking area, and the convex edge interacts with the roller to enable the first branch stay rod to retract into or extend out of the accommodating cavity so as to limit the movement track of the roller.
Obviously, the distance between the flange and the platen peripheral wall is consistent with the distance between the roller outer side and the blade, which is then abutted against the platen peripheral edge (i.e., platen peripheral wall) when the roller outer side is abutted against the flange. Under the cooperation of the return spring and the convex edge, the roller can always roll along the track set by the convex edge.
The length of the supporting rod is continuously changed when the oval or irregularly-shaped skin taking area is cut; in order to enable the tool rest to be more suitable for a compression unit (namely, a skin taking area), the sleeve block and the support rod are hinged to each other, and the support rod can freely rotate by taking the hinge point of the support rod and the sleeve block as the circle center, so that the support rod can always keep an inclined angle consistent with the conical surface of the conical cylinder, and the situation that the first branch support rod and the second branch support rod cannot always keep parallel due to the fact that the connecting point between the support rod and the sleeve block is rigid (the included angle between the support rod and the sleeve block is not variable) and finally stress damage occurs to the first branch support rod and the second branch support rod is avoided.
In the skin taking area outer contour cutting device, a limiting step propped against the end face of the second supporting rod is arranged on the periphery of the first branch supporting rod.
In the skin taking area outer contour cutting device, the cross section shape of the conical cylinder is similar to the shape of the skin taking area outer contour, and the periphery of the supporting rod is provided with a roller which rolls along the conical surface of the conical cylinder along with the rolling of the roller. The conical cylinder forms a support for the bottom surface of the sleeve block on the one hand and on the other hand facilitates the transfer of the forces exerted on the tool holder via the roller to the conical surface of the conical cylinder and thus to the pressure plate. Therefore, the pressure applied to the tool rest in order to drive the tool rest to rotate can be applied to the pressing rod, the conical surface and the edge of the pressing plate through the sleeve block, the roller and the roller, the pressure born by each part of the pressing plate is further ensured to be consistent, and the thickness of the cut leather sheet is prevented from being inconsistent due to different stress of the pressing plate.
In the skin taking area outer contour cutting device, the roller is arranged on the supporting rod in the following manner: the outer periphery of the supporting rod is fixedly provided with a shaft sleeve, and the roller is sleeved on the outer periphery of the shaft sleeve and is in running fit with the shaft sleeve; a second limiting mechanism for preventing the roller from sliding down along the supporting rod is arranged between the shaft sleeve and the roller.
In the skin taking area outer contour cutting device, a first connecting groove is formed in the top end of the supporting rod, an opening of the first connecting groove is formed in the end face of the supporting rod, a first hinging rod penetrating through the first connecting groove is fixed on the supporting rod, and a first gear is fixed on the first hinging rod;
The sleeve block is provided with a second connecting groove, the groove wall of the second connecting groove is provided with a second through hole for the first hinging rod to pass through, the first hinging rod and the sleeve block are in running fit, and a second limiting mechanism for preventing the sleeve block from being separated from the first hinging rod is arranged between the first hinging rod and the sleeve block; a second gear is arranged in the second connecting groove, and the second gear and the first gear are meshed with each other. Therefore, the support rod can still freely rotate by taking the hinging point of the support rod and the sleeve block as the circle center, and the second gear and the first gear which are meshed with each other have a self-locking function, so that the support rod can be fixed on a certain rotation angle without external force intervention, and the controllability of the tool rest is enhanced.
In the skin taking area outer contour cutting device, the bottom end of the supporting rod is provided with a roller frame, and the roller frame is in running fit with a roller;
The roller frame is provided with a third connecting groove, an opening of the third connecting groove is positioned at the edge of the roller frame, a second hinging rod penetrating through the third connecting groove is fixed on the roller frame, and a third gear is fixed on the second hinging rod;
the bottom end of the supporting rod is provided with a fourth connecting groove, an opening of the fourth connecting groove is positioned on the end face of the supporting rod, a third through hole for the second hinging rod to pass through is formed in the groove wall of the fourth connecting groove, the second hinging rod and the roller frame are in rotary fit, and a third limiting mechanism for preventing the roller frame from being separated from the second hinging rod is arranged between the second hinging rod and the roller frame;
A fourth gear is fixedly arranged in the fourth connecting groove, and the fourth gear and the third gear are meshed with each other.
Similarly, the support rods and the roller wheel frames which are mutually hinged can enable the roller wheel frames and the support rods to freely rotate in a circular shape by taking the hinge points of the support rods and the roller wheel frames as the hinge points, so that the roller wheels can always face the pressing plate, and the roller wheels are prevented from leaving the top surface of the pressing plate or tilting to the top surface of the pressing plate, and the effect of pressing the pressing plate cannot be achieved. Moreover, the position relation of the cutter and the roller is fixed, so that the cutter is always clung to the outer periphery of the pressing plate while the roller is ensured to always roll along the edge of the top surface of the pressing plate. The fourth gear and the third gear meshed with each other can further improve the controllability of the roller frame.
In different skin defect tests or operations, the requirements on the thickness of the skin sheet in the skin taking area are inconsistent, so in the skin taking area outline cutting device, the cutter handle is embedded on one side of the roller frame, which faces to the edge of the pressing plate, and a blade cutting depth adjusting mechanism is arranged between the cutter handle and the roller frame.
In the above-mentioned skin taking area outline cutting device, the blade cutting depth adjusting mechanism comprises an elastic embedded button arranged on the handle of a knife and a row of adjusting holes arranged on the roller frame and used for accommodating the elastic embedded button, and the extending direction of the row of adjusting holes is parallel to the axial direction of the compression bar. The elastic embedded button is pressed, the knife handle is pushed and pulled, so that the elastic embedded button can be sprung into different adjusting holes to be fixed, and the cutting depth of the blade can be adjusted.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention adopts the compressing unit to compress the skin taking area, the compressing unit is provided with the pressing plate which is matched with the shape of the skin taking area, the top end of the knife rest rotates around the pressing rod by driving the knife rest, the roller at the bottom end of the knife rest rolls along the edge of the pressing plate, and the force exerted on the knife rest by an operator drives the knife rest to move on one hand and also converts the force exerted on the center (corresponding to the center of the pressing plate) of the compressing unit and the edge of the pressing plate on the other hand, so that the pressing plate is driven to compress the skin taking area, thereby avoiding skin folds of the skin taking area, ensuring that the thickness of the skin at each part of the skin taking area is kept consistent after the skin taking area is uniformly compressed, and realizing uniform compression-uniform cutting; in the moving process of the knife rest, the knife rest movement track limiting mechanism enables the knife blade to be always tightly attached to the outer periphery of the pressing plate, even if the knife blade is in an irregularly-shaped skin taking area, the knife blade can not scratch the skin taking area, and the smoothness of the outer contour curve of the skin taking area is ensured.
(2) The invention sets the support bar as the first branch support bar and the second branch support bar connected by the reset spring separately, and sets the convex edge on the top surface of the pressing board, the shape of the convex edge is similar to the shape of the outer contour of the skin taking area, the distance between the convex edge and the outer peripheral wall of the pressing board is consistent with the distance between the outer side of the roller and the blade, when the outer side of the roller is tightly attached to the convex edge, the blade is tightly attached to the outer periphery of the pressing board (namely the outer peripheral wall of the pressing board), under the cooperation of the reset spring and the convex edge, the first branch support bar can retract into and extend out of the accommodating cavity along with the extension of the convex edge, so that the roller can roll along the track set by the convex edge all the time, and when the skin taking areas with different sizes are cut, only the pressing units of the pressing boards with different sizes and shapes need to be replaced.
(3) The top surface of the pressing plate is provided with a conical cylinder, and the top end of the conical cylinder is provided with a pressing rod; the conical cylinder forms a support for the bottom surface of the sleeve block, and the force applied to the tool rest is conveniently transmitted to the conical surface of the conical cylinder and then to the pressing plate through the roller; therefore, the pressure applied to the tool rest in order to drive the tool rest to rotate can be applied to the pressing rod, the conical surface and the edge of the pressing plate through the sleeve block, the roller and the roller, the pressure born by each part of the pressing plate is further ensured to be consistent, and the thickness of the cut leather sheet is prevented from being inconsistent due to different stress of the pressing plate.
(4) According to the invention, the sleeve block and the support rod are hinged, and meanwhile, the first gear and the second gear which are meshed with each other are arranged between the sleeve block and the support rod, so that the support rod can freely rotate by taking the hinge point of the support rod and the sleeve block as the circle center, the support rod can always keep an inclination angle consistent with the conical surface of the conical cylinder, and the situation that the first branch support rod and the second branch support rod cannot always keep parallel due to the rigidity of the connection point between the support rod and the sleeve block (the included angle between the support rod and the support rod is not variable) and finally stress damage occurs to the first branch support rod and the second branch support rod is avoided.
(5) According to the invention, the support rod and the roller frame are hinged with each other, and meanwhile, the third gear and the fourth gear which are meshed with each other are arranged between the support rod and the roller frame, so that the roller frame can freely rotate by taking the hinge point of the roller frame and the support rod as the circle center, the roller on the roller frame can always face the pressing plate, and the effect that the roller leaves the top surface of the pressing plate or inclines to the top surface of the pressing plate due to the rigidity of the connecting point between the support rod and the roller frame (the included angle between the support rod and the roller frame is not changeable) is avoided. Moreover, the position relation of the cutter and the roller is fixed, so that the cutter is always clung to the outer periphery of the pressing plate while the roller is ensured to always roll along the edge of the top surface of the pressing plate.
Drawings
FIG. 1 is a schematic diagram of a device for cutting the outer contour of a skin taking area according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 2;
fig. 4 is a schematic structural view of an external contour cutting device for a skin taking area according to the present invention at another view angle;
FIG. 5 is an enlarged view of portion C of FIG. 4;
FIG. 6 is an enlarged view of portion D of FIG. 4;
FIG. 7 is a schematic view of the cutter of FIG. 6;
FIG. 8 is a schematic view of the roller frame of FIG. 7 from another perspective;
FIG. 9 is a partial cross-sectional view of the support rod of FIG. 4;
fig. 10 is a partial cross-sectional view of the support rod of fig. 4 in a compressed state.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the attached drawings and the detailed description.
Example 1
In this embodiment, the cutting of the oval skin-taking area is taken as an example, and the skin-taking area outline cutting device of the present invention is described.
As shown in fig. 1 and 4, the outer contour cutting device of the skin taking area comprises an elliptical pressing plate 1 with the same size and shape as the skin taking area, wherein a conical cylinder 2 which is integrally arranged with the pressing plate 1 is arranged in the center of the top surface of the pressing plate 1, and the cross section of the conical cylinder is similar to that of the pressing plate; since the area of the bottom surface of the conical cylinder 2 is smaller than that of the pressing plate 1, the edge of the pressing plate 1 forms an outward flange 11 at the outer periphery of the conical cylinder 2; the top end of the conical cylinder 2 is provided with a pressing rod 3, and a knife rest 4 is obliquely arranged between the flanging 11 and the pressing rod 3.
Unless otherwise specified, "similar" as used herein means that the two are scaled in size and are arranged in reference to the mathematical concept "similar triangle".
In this embodiment, the tool holder 4 includes a support bar 41 obliquely disposed on the tapered cylinder 2, and a roller 5 is mounted outside the support bar 41 so as to roll along the tapered surface of the tapered cylinder 2. As shown in fig. 9 and 10, the drum 5 is mounted on the tool post 4 in the following manner: the outer periphery of the supporting rod 41 is fixedly provided with a shaft sleeve 51, and the roller 5 is sleeved on the outer periphery of the shaft sleeve 51 and is in rotary fit with the shaft sleeve 51; a stopper ring 52 is fixed to the outer peripheral wall of the end of the boss 51 facing the roller frame 44, and the stopper ring 52 abuts against the end surface of the roller 5. As shown in fig. 9 and 10, and as can be seen in fig. 1 and 4, the support bar 41 includes a first branch support bar 46 and a second branch support bar 47 which are separately provided, a receiving cavity 471 for receiving the first branch support bar 46 is provided at an end of the second branch support bar 47, a return spring 472 is abutted between the first branch support bar 46 and an inner wall of the receiving cavity 471, and a limiting step 461 abutted against an end face of the second branch support bar 47 is provided at an outer periphery of the first branch support bar 46.
As shown in fig. 2 and 5, and as can be seen in fig. 1 and 4, the second sub-supporting rod 47 is hinged to the sleeve block 42, the sleeve block 42 is sleeved on the pressing rod 3, and the anti-falling bolt 43 is mounted at one end of the pressing rod 3 passing through the sleeve block 42. The second sub-supporting rod 47 and the sleeve block 42 are hinged in the following manner: the top end of the second sub supporting rod 47 is provided with a first connecting groove 473, an opening of the first connecting groove 473 is positioned on the end face of the second sub supporting rod 47, a first hinging rod 474 penetrating through the first connecting groove 473 is fixed on the second sub supporting rod 47, and a first gear 475 is fixed on the first hinging rod 474; the sleeve block 42 is provided with a second connecting groove 421, the groove wall of the second connecting groove 421 is provided with a second through hole for the first hinging rod 474 to pass through, the first hinging rod 474 is in rotary fit with the sleeve block 42, and a first anti-drop cap 476 for preventing the sleeve block 42 from being separated from the first hinging rod 474 is arranged between the first hinging rod 474 and the sleeve block 42; a second gear 423 is fixedly installed in the second connection groove 421 through a first installation shaft 422, and the second gear 423 and the first gear 475 are engaged with each other.
As shown in fig. 3 and 5, and in combination with fig. 1 and 4, the first branch stay 46 is hinged with a roller frame 44, a roller shaft 7 is rotatably matched with the roller frame 44 through a bearing, and a roller 71 is fixed on the roller shaft 7; the roller frame 44 is provided with a third connecting groove 441, an opening of the third connecting groove 441 is positioned at the edge of the roller frame 44, a second hinging rod 442 penetrating through the fourth connecting groove 441 is fixed on the roller frame 44, and a third gear 443 is fixed on the second hinging rod 442; the bottom end of the first branch stay bar 46 is provided with a fourth connecting groove 462, an opening of the fourth connecting groove 462 is positioned on the end surface of the first branch stay bar 46, a groove wall of the fourth connecting groove 462 is provided with a third through hole for the second hinge rod 442 to pass through, the second hinge rod 442 and the roller frame 44 are in running fit, and a second anti-drop cap 444 for preventing the roller frame 44 from being separated from the second hinge rod 442 is arranged between the second hinge rod 442 and the roller frame 44; a fourth gear 463 is fixedly mounted in the fourth connecting groove 462 by a second mounting shaft 464, and the fourth gear 463 and the third gear 443 are engaged with each other.
The top edge of the pressing plate 1 is provided with a convex edge 12, the shape of the convex edge 12 is similar to the shape of the outer contour of the skin taking area, and the convex edge 12 interacts with the roller to enable the first branch stay 46 to retract into or extend out of the accommodating cavity 471, so that the movement track of the roller 71 is limited.
As can be seen in fig. 3 and 5, in combination with fig. 7 and 8, a cutter 9 is fitted to the roller frame 44 on the side of the roller frame 44 facing away from the platen 1. In this embodiment, the cutter 9 includes a cutter handle 91 embedded on the roller frame 44, the cutter handle 91 is provided with a blade 92, and the blade 92 has the same radian as the outer periphery of the pressing plate 1, and the blade 92 can be always attached to the outer periphery of the pressing plate 1 in the process of peeling.
In this embodiment, an elastic button 93 is further mounted on the handle 91, and a row of adjustment holes 445 for accommodating the elastic button 93 are formed on the roller frame 44, where the extending direction of the row of adjustment holes 445 is parallel to the axial direction of the compression rod 3. By pressing the elastic embedded button 93 and pushing and pulling the knife handle 91, the elastic embedded button 93 can be sprung into different adjusting holes 445 for fixing, and the cutting depth of the blade 92 can be adjusted, so that skin sheets with different thicknesses or skin defect wound surfaces with different depths can be obtained.
As shown in fig. 1 and 4, in order to facilitate the movement of the driving tool holder 4, a push handle 45 is further mounted on the second sub supporting rod 47.
The working principle of the skin taking area outer contour cutting device in the embodiment is as follows:
Selecting a pressing plate with the same size and shape as the skin taking area, fixing the sleeve block 42 on the pressing rod 3 by utilizing the anti-falling bolt 43, adjusting the included angle between the second branch supporting rod 47 and the sleeve block 42, enabling the roller 5 on the second branch supporting rod 47 to be tightly attached to the conical surface of the conical cylinder 2, adjusting the included angle between the first branch supporting rod 46 and the roller frame 44, and enabling the roller 71 on the roller frame 44 to be tightly attached to the flanging 11 of the pressing plate 1; placing a skin taking area outer contour cutting device in the skin taking area to enable the outer periphery of the pressing plate 1 to be matched with the outer contour of the skin taking area, applying force from the pressing rod 3 to press the pressing plate 1, and placing the cutter 9 at a specific position of the roller frame 44 according to the required skin taking depth; the tool rest 4 is rotated by holding the push handle 45, at the moment, the sleeve block 42 rotates around the compression bar 3, the roller 5 rolls along the conical surface of the conical cylinder 2, the roller 71 rolls along the flanging 11 of the pressing plate 1, and the blade 92 is tightly attached to the outer periphery of the pressing plate 1 to cut along the outer contour of the skin taking area; in the rotating process of the tool rest 4, the length of the supporting rod 41 changes regularly along with the rolling rotation of the roller, and similarly, the included angle between the second branch supporting rod 47 and the sleeve block 42 and the included angle between the first branch supporting rod 46 and the roller frame 44 also change autonomously along with the length change of the supporting rod 41 under the pressure of an operator, so that the first branch supporting rod 46 and the second branch supporting rod 47 are always on the same straight line.
Claims (8)
1. The utility model provides a get skin district outline cutting device which characterized in that includes:
the compressing unit is used for compressing the skin taking area and comprises a pressing plate (1), and the outer periphery of the pressing plate (1) is matched with the outer contour of the skin taking area;
The cutting unit is used for cutting the outline of the skin taking area and comprises a cutter rest (4), the top end of the cutter rest (4) is in running fit with the cutting unit, and a first limiting mechanism used for preventing the cutter rest (4) from being separated from the pressing unit is arranged between the cutter rest (4) and the pressing unit; the bottom end of the tool rest (4) is provided with a cutter (9), and the cutter (9) comprises a tool shank (91) and a blade (92) arranged on the tool shank (91);
The bottom end of the tool rest (4) is in rolling fit with the pressing plate (1), and a tool rest movement track limiting mechanism for driving the blade (92) to be always attached to the outer periphery of the pressing plate (1) is arranged between the tool rest (4) and the pressing plate (1);
the compressing unit also comprises a conical cylinder (2) arranged on the top surface of the pressing plate (1), and a pressing rod (3) is arranged at the top end of the conical cylinder (2); the tool rest (4) comprises a sleeve block (42) and a supporting rod (41) which are mutually hinged, the sleeve block (42) is provided with a first through hole for a pressing rod (3) to pass through, one end of the pressing rod (3) passing through the first through hole is provided with an anti-falling piece, and the cutter (9) is arranged at the bottom end of the supporting rod (41);
the support rod (41) comprises a first branch support rod (46) and a second branch support rod (47) which are arranged in a split mode, the first branch support rod (46) is hinged with the roller frame (44), and the second branch support rod (47) is hinged with the sleeve block (42); the tool rest (4) motion track limiting mechanism comprises:
A receiving cavity (471) arranged at the end part of the second branch supporting rod (47) and used for receiving the first branch supporting rod (46), and a return spring (472) is abutted between the first branch supporting rod (46) and the inner wall of the receiving cavity (471);
the convex edge (12) is arranged at the edge of the top surface of the pressing plate (1), the shape of the convex edge (12) is similar to that of the outer contour of the skin taking area, and the convex edge interacts with the roller (71) to enable the first branch stay rod (46) to retract into or extend out of the accommodating cavity (471) so as to limit the movement track of the roller (71).
2. The skin removing area outer contour cutting device as claimed in claim 1, characterized in that a limit step (461) which is abutted against the end face of the second branch support rod (47) is arranged on the periphery of the first branch support rod (46).
3. A skin removing area outer contour cutting device according to any of the claims 1-2, characterized in that the cross-sectional shape of the cone (2) is similar to the shape of the skin removing area outer contour, and that the support bar (41) is provided with a roller (5) at its periphery which rolls along the conical surface of the cone (2) as the roller rolls.
4. A skin removing area outer contour cutting device as claimed in claim 3, characterized in that the periphery of the knife rest (4) is fixed with a shaft sleeve (51), and the roller (5) is sleeved on the periphery of the shaft sleeve (51) and is in rotary fit with the shaft sleeve (51); a limiting ring for preventing the roller (5) from sliding down along the supporting rod (41) is arranged between the shaft sleeve (51) and the roller (5).
5. A skin removing area outline cutting device as claimed in claim 3, wherein a first connecting groove (473) is arranged at the top end of the supporting rod (41), an opening of the first connecting groove (473) is positioned on the end face of the supporting rod (41), a first hinging rod (474) penetrating through the first connecting groove (473) is fixed on the supporting rod (41), and a first gear (475) is fixed on the first hinging rod (474);
The sleeve block (42) is provided with a second connecting groove (421), the groove wall of the second connecting groove (421) is provided with a second through hole for the first hinging rod (474) to pass through, the first hinging rod (474) is in rotary fit with the sleeve block (42), and a second limiting mechanism for preventing the sleeve block (42) from being separated from the first hinging rod (474) is arranged between the first hinging rod and the sleeve block; a second gear (423) is installed in the second connecting groove (421), and the second gear (423) and the first gear (475) are meshed with each other.
6. The skin removing area outline cutting device according to any one of claims 1-2 and 4-5, wherein the bottom end of the supporting rod (41) is provided with a roller frame (44), and the roller frame (44) is rotatably matched with a roller (71);
A third connecting groove (441) is formed in the roller frame (44), an opening of the third connecting groove (441) is located at the edge of the roller frame (44), a second hinging rod (442) penetrating through the third connecting groove (441) is fixed on the roller frame (44), and a third gear (443) is fixed on the second hinging rod (442);
The bottom end of the supporting rod (41) is provided with a fourth connecting groove (462), an opening of the fourth connecting groove (462) is positioned on the end face of the supporting rod (41), a groove wall of the fourth connecting groove (462) is provided with a third through hole for a second hinging rod (442) to pass through, the second hinging rod (442) is in running fit with the roller frame (44), and a third limiting mechanism for preventing the roller frame (44) from being separated from the second hinging rod (442) is arranged between the second hinging rod (442);
A fourth gear (463) is fixedly arranged in the fourth connecting groove (462), and the fourth gear (463) and the third gear (443) are meshed with each other.
7. The skin removing area outer contour cutting device according to claim 6, wherein the knife handle is embedded on one side of the roller frame (44) facing the edge of the pressing plate (1), and a knife blade cutting depth adjusting mechanism is arranged between the knife handle (91) and the roller frame (44).
8. The skin removing section outer contour cutting device as defined in claim 7, characterized in that said blade cutting depth adjusting mechanism comprises an elastic insert button (93) provided on the handle (91), and a row of adjusting holes (445) provided on the roller frame (44) for accommodating said elastic insert button (93), the extending direction of the row of adjusting holes (445) being parallel to the axial direction of the pressing rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810601660.3A CN108742926B (en) | 2018-06-12 | 2018-06-12 | Skin taking area outer contour cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810601660.3A CN108742926B (en) | 2018-06-12 | 2018-06-12 | Skin taking area outer contour cutting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108742926A CN108742926A (en) | 2018-11-06 |
| CN108742926B true CN108742926B (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810601660.3A Active CN108742926B (en) | 2018-06-12 | 2018-06-12 | Skin taking area outer contour cutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108742926B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2348366C1 (en) * | 2007-10-12 | 2009-03-10 | Общество с ограниченной ответственностью НАУЧНО-ИССЛЕДОВАТЕЛЬСКИЙ ЦЕНТР ИННОВАЦИОННЫХ ТЕХНОЛОГИЙ ВОЗРОЖДЕНИЕ (ООО НИЦИТ ВОЗРОЖДЕНИЕ) | Dermatome |
| CN201996626U (en) * | 2011-03-09 | 2011-10-05 | 山东省立医院 | Roll shaft skin fetching knife |
| CN203598016U (en) * | 2013-11-19 | 2014-05-21 | 杨学慧 | Roll shaft skin cutting device for general surgery department |
| CN209269963U (en) * | 2018-06-12 | 2019-08-20 | 杭州市萧山区中医院 | Take dermatotome outer profile cutter device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9592076B2 (en) * | 2012-09-07 | 2017-03-14 | Exsurco Medical, Inc. | Power operated dermatome with rotary knife blade |
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2018
- 2018-06-12 CN CN201810601660.3A patent/CN108742926B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2348366C1 (en) * | 2007-10-12 | 2009-03-10 | Общество с ограниченной ответственностью НАУЧНО-ИССЛЕДОВАТЕЛЬСКИЙ ЦЕНТР ИННОВАЦИОННЫХ ТЕХНОЛОГИЙ ВОЗРОЖДЕНИЕ (ООО НИЦИТ ВОЗРОЖДЕНИЕ) | Dermatome |
| CN201996626U (en) * | 2011-03-09 | 2011-10-05 | 山东省立医院 | Roll shaft skin fetching knife |
| CN203598016U (en) * | 2013-11-19 | 2014-05-21 | 杨学慧 | Roll shaft skin cutting device for general surgery department |
| CN209269963U (en) * | 2018-06-12 | 2019-08-20 | 杭州市萧山区中医院 | Take dermatotome outer profile cutter device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108742926A (en) | 2018-11-06 |
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