CN112641492A

CN112641492A - Novel surgical knife for rapidly preparing microskin

Info

Publication number: CN112641492A
Application number: CN202011516835.4A
Authority: CN
Inventors: 郑广泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-04-13

Abstract

The invention provides a novel surgical knife for quickly preparing microsomes, which comprises: the blade holds the component, the apparatus further comprises a rotating shaft, a plurality of circular blades and at least one handle, the blade holds the component and has a holding cavity with an opening on one side, the rotating shaft is rotatably installed on the blade holds the component and located in the holding cavity, the circular blades are installed on the rotating shaft at equal intervals, the blade part extends out of the holding cavity, the handle is installed outside the blade holds the component, when the leather sheet is cut, the blade is pushed to rotate through the handle, so that the leather sheet is cut, and after cross cutting, the leather is cut into sub-millimeter-grade microskin with regular shape and uniform size.

Description

Novel surgical knife for rapidly preparing microskin

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a novel surgical knife for quickly preparing microskins.

Background

Currently, skin grafting is a commonly used method of treatment and a necessary means of treatment in the treatment of skin defect diseases and wounds (burns, explosions, traffic accidents, etc.) caused by various causes. For the wound surface with larger defect area, the autologous skin source is limited. Therefore, the "microskin transplantation" method is often adopted in clinical surgery to treat patients.

The surgical method for microsomal transplantation comprises the following steps: firstly, the skin is cut by a skin-taking knife to obtain the thick skin with self-edge, and then the cut skin is cut into a plurality of pieces with the area less than 1-2mm by scissors or a skin cutting machine²And finally, the small skin particles are smaller than 1-2mm²The small skin particles are transplanted to the wound surface.

At present, the mode of making the particle skin mainly has two kinds, one kind is to use the tissue scissors to make by hand, another kind is to use the electronic garrulous skin machine to make. Both of these two methods of making microsomes have drawbacks and disadvantages. The microskin is manually made by using the tissue scissors, the speed is low, the efficiency is low, the operation time is long, the risk of infection is increased, and the microskin made in the mode is uneven in size, so that the skin grafting effect is influenced. The electric skin-breaking machine is used for making particle skins, and a motor is used for driving a plurality of groups of cutter heads to repeatedly rotate at a high speed for repeated cutting so as to achieve the purpose of breaking skins. Although this system skin mode can save a large amount of manpowers, material resources, and the particle skin size is even, but the blade of high-speed rotation has stronger impact cutting effect to the cell, and the cell damage is great, and the grafting survival rate is not high. Therefore, this method is rarely used clinically.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a novel surgical knife for rapidly preparing microskins. The cutter has a simple structure, is convenient to operate, and can be used for quickly preparing the submillimeter-level microsomes with regular shapes and uniform sizes.

The invention provides a novel surgical knife for quickly preparing microsomes, which is characterized by comprising the following components in percentage by weight: a blade accommodating member having an accommodating chamber with one side opened;

the rotating shaft is rotatably arranged on the blade accommodating component and is positioned in the accommodating cavity;

the circular blades are arranged on the rotating shaft at equal intervals, and the blade parts extend out of the accommodating cavity; and

at least one handle mounted on an exterior of the blade receiving member,

when the leather sheet is cut, the blade is pushed to rotate by the force applied by the handle, so that the leather sheet is cut.

Further, in the novel surgical knife for rapidly preparing the microskin provided by the invention, the novel surgical knife can also have the following characteristics: the novel surgical knife tool for quickly preparing the microskins further comprises a cover plate, the cover plate is matched with an opening of the accommodating cavity, the blade accommodating component is arranged on the blade accommodating component and located at the opening of the accommodating cavity, a plurality of grooves are formed in the cover plate at equal intervals and are corresponding to the blade, the cover plate is arranged on the blade accommodating component, and the blade penetrates through the grooves correspondingly.

Further, in the novel surgical knife for rapidly preparing the microskin provided by the invention, the novel surgical knife can also have the following characteristics: the blade accommodating member and the blade are parallel, the profiles of two side wall surfaces of the blade accommodating member are the same, the side wall surfaces comprise two sections of circular arcs, the two sections of circular arcs are respectively the bottom and the top of the side wall surfaces, the central lines of the two sections of circular arcs are overlapped, the blade accommodating member is in a straight hollow cylindrical shape with the two side wall surfaces as two bottom surfaces, and the straight hollow cylindrical shape has no side surface at the position corresponding to the circular arc at the top of the side wall surface.

Further, in the novel surgical knife for rapidly preparing the microskin provided by the invention, the novel surgical knife can also have the following characteristics: the distance between the central planes of two adjacent blades is less than or equal to 1 mm.

Further, in the novel surgical knife for rapidly preparing the microskin provided by the invention, the novel surgical knife can also have the following characteristics: every the width in groove is 0.7mm, adjacent two interval 0.3mm between the groove, the thickness of blade is 0.3mm, the radius of blade is 20mm, the lateral wall face is the semicircle that the radius is 22.5mm towards one side of bottom, the lateral wall face is the circular arc that the radius is 40mm towards open-ended one side.

Further, in the novel surgical knife for rapidly preparing the microskin provided by the invention, the novel surgical knife can also have the following characteristics: the number of the handles is two, namely a fixed handle and a movable handle, the fixed handle is fixed on the outer portion of the blade containing component, and one end of the movable handle is adjustably installed on the outer portion of the blade containing component.

Further, in the novel surgical knife for rapidly preparing the microskin provided by the invention, the novel surgical knife can also have the following characteristics: and one ends of the fixed handle and the movable handle close to the blade containing component are respectively provided with a second through hole.

Further, in the novel surgical knife for rapidly preparing the microskin provided by the invention, the novel surgical knife can also have the following characteristics: the fixed handle is inclined toward the bottom of the blade receiving member,

the movable handle includes a handle bar and two fixing bars connected to the handle bar, the two fixing bars being located at the same end of the handle bar, the two fixing bars being adjustably mounted to an outside of the blade accommodating member,

the angle between the two fixing rods and the handle rod is greater than 90 degrees, and after the two fixing rods are installed on the blade accommodating member, the handle rod of the movable handle is inclined toward the bottom of the blade accommodating member when the movable handle and the fixed handle are respectively located at both sides of the blade accommodating member.

Further, in the novel surgical knife for rapidly preparing the microskin provided by the invention, the novel surgical knife can also have the following characteristics: two side wall surfaces of the blade accommodating component parallel to the blade are respectively provided with a first through hole, the central axes of the two first through holes are superposed, the two first through holes are respectively positioned on the central lines of the two side wall surfaces of the blade accommodating component parallel to the blade, two ends of the rotating shaft are respectively rotatably arranged on the two first through holes, two ends of the rotating shaft extend out of the blade accommodating component after the rotating shaft is arranged on the first through holes, two ends of the rotating shaft are respectively provided with a bearing,

the blade containing component is provided with a bearing seat on the inner side of two side wall surfaces parallel to the blade, the two bearing seats are respectively positioned at the two first through holes, the two bearings are respectively positioned on the bearing seats,

and the two fixing rods are respectively and rotatably arranged at two ends of the rotating shaft.

Further, in the novel surgical knife for rapidly preparing the microskin provided by the invention, the novel surgical knife can also have the following characteristics: the blade holding component is provided with two mounting components on the outer sides of two side wall surfaces parallel to the blade, the two fixing rods are mounted on the outer side of the blade holding component through the mounting components respectively, and after the two fixing rods are mounted on the mounting components, the movable handle can rotate around the mounting components at different angles. The invention has the following advantages:

according to the novel surgical knife for quickly preparing the microskin, the skin can be prepared into the sub-millimeter level microskin with regular shape and uniform size only by once cross cutting, the operation is convenient, the time is saved, and the structure of the surgical knife is simple.

Drawings

FIG. 1 is a view showing the construction of a novel surgical knife for rapidly preparing microskins in an embodiment of the present invention;

FIG. 2 is a front view of a novel surgical knife for rapidly preparing microskins in an embodiment of the present invention;

FIG. 3 is a top view of a novel surgical knife for rapidly preparing microskins in an embodiment of the present invention;

FIG. 4 is a left side view of a novel surgical knife for rapidly preparing microskins in an embodiment of the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a schematic view of the structure of the blade receiving member and the stationary handle in an embodiment of the present invention;

FIG. 7 is a schematic view of the structure of the blade receiving member, the fixed handle and the spindle in an embodiment of the invention;

FIG. 8 is a schematic structural view of a cover plate in an embodiment of the present invention;

FIG. 9 is a front view of a cover plate in an embodiment of the present invention;

fig. 10 is a schematic structural view of a movable handle in the embodiment of the present invention.

Wherein the broken line in fig. 2 is the center line of the side wall of the blade receiving member parallel to the blade.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the following embodiments specifically describe the novel surgical knife for rapidly preparing the microskin of the invention with reference to the attached drawings.

As shown in fig. 1, 2, 3, and 4, a novel surgical knife 100 for rapidly preparing microskins includes: a blade receiving member 10, a spindle 20, a plurality of blades 30, and at least one handle.

As shown in fig. 6 and 7, the blade accommodating member 10 has an accommodating chamber 11, and the rotating shaft 20 is rotatably mounted on the blade accommodating member 10 and located in the accommodating chamber 11. The blades 30 are circular, a plurality of blades 30 are installed on the rotating shaft 20 at equal intervals, and the blades 30 partially extend out of the accommodating cavity 11, specifically, 45 blades 30 are provided, but it is also possible to provide 50 blades, 60 blades, and the like. The handle is mounted on the exterior of the blade receiving member 10.

In this embodiment, the novel surgical knife 100 further includes a cover plate 60, the cover plate 60 is matched with the opening of the accommodating cavity 11, and the cover plate 60 is installed on the blade accommodating member 10 and located at the opening of the accommodating cavity 11. As shown in fig. 8 and 9, the cover plate 60 is provided with a plurality of grooves 61 at equal intervals, and the plurality of grooves 61 correspond to the plurality of blades 30, respectively. As shown in fig. 4 and 5, after the cover plate 30 is mounted on the blade housing member 10, the plurality of blades 30 are inserted through the corresponding slots 61, respectively.

In the present embodiment, as shown in fig. 2 and 6, the profiles of the two side wall surfaces of the blade housing member 10 parallel to the blade 30 are the same. The side wall surface comprises two arcs, the two arcs are respectively the bottom 13 and the top 14 of the side wall surface, and the central lines of the two arcs are overlapped. The insert accommodating member 10 has a straight hollow cylindrical shape with two side wall surfaces as two bottom surfaces, and the straight hollow cylindrical shape has no side surface at a position corresponding to an arc at the top of the side wall surfaces.

In the present embodiment, as shown in fig. 5, the distance l between the center planes of two adjacent blades 30 is 1mm or less, and specifically, the distance l between the center planes of two adjacent blades 30 may be set to 1mm, 0.8mm, 0.7mm, or the like. As shown in fig. 5 and 9, the width m of each groove 61 is 0.7mm, and the interval n between two adjacent grooves is 0.3 mm. The thickness d of the blade 30 is 0.3mm and the radius of the blade is 20 mm. As shown in fig. 2, the side of the side wall surface facing the bottom is a semicircular arc 13 having a radius r1 of 22.5mm, and the side of the side wall surface facing the opening is an arc 14 having a radius r2 of 40 mm. Specifically, the blade-mounting portion of the spindle 20 is a cylinder having a diameter of 5 mm.

In the present embodiment, the handle is two, and is divided into a fixed handle 40 and a movable handle 50. The fixing handle 40 is fixed to the outside of the blade accommodating member 10, and specifically, as shown in fig. 6, the fixing handle 40 is integrally formed with the blade accommodating member 10. In the present embodiment, as shown in fig. 2, the fixing handle 40 is inclined toward the bottom of the blade housing member 10.

One end of the movable handle 50 is adjustably mounted to the exterior of the blade receiving member 10. The movable handle is used for facilitating the power generation habits of different operators. As shown in fig. 10, the movable handle 50 includes a handle bar 51 and two fixing bars 52 connected to the handle bar 51, the two fixing bars 52 being located at the same end of the handle bar 51, the two fixing bars 52 being adjustably mounted to the outside of the blade housing member 10. Specifically, two fixing levers 52 are installed at both sides of the width of the same end of the handle lever 51, respectively, and the two fixing levers 52 and the handle lever 51 form a "U" shape. The angle between the two fixing bars 52 and the handle bar 51 is greater than 90 °. As shown in fig. 2, after the two fixing levers 52 are mounted on the blade housing member 10, the handle levers 51 of the movable handle 50 are inclined toward the bottom of the blade housing member 10 when the movable handle 50 and the fixing handles 40 are positioned at both sides of the blade housing member 10, respectively.

In the present embodiment, as shown in fig. 6, two side walls of the blade accommodating member 10 parallel to the blade 30 are respectively provided with one first through hole 12, central axes of the two first through holes 12 coincide, and specifically, the two first through holes 12 are respectively located on central lines of two side wall surfaces of the blade accommodating member 10 parallel to the blade 30. As shown in fig. 7, both ends of the rotating shaft 20 are rotatably mounted on the two first through holes 12, respectively, and the rotating shaft 20 is mounted on the first through hole 12 and extends out of the blade accommodating member 10. Two ends of the rotating shaft 20 are respectively provided with a bearing, the blade accommodating member 10 is provided with a bearing seat 15 on the inner side of each of two side wall surfaces parallel to the blade 30, the two bearing seats 15 are respectively located at the two first through holes 12, the two bearings are respectively located on the bearing seats 15, and the bearings are arranged to reduce the friction force when the rotating shaft 20 rotates.

In the present embodiment, two fixing levers 52 are rotatably installed at both ends of the rotating shaft 20, respectively. Specifically, the two fixing rods 52 are respectively installed at both ends of the rotation shaft 20 without affecting the rotation of the rotation shaft 20. The mounting holes of the two fixing rods 52 may be made larger than the diameter of the rotating shaft 20 at the mounting site, or the friction between the fixing rods 52 and the rotating shaft 20 may be reduced, such as mounting bearings and the like.

Of course, the specific structure in which the two fixing rods 52 are adjustably mounted on the outer side of the blade housing member 10 may also be: an installation member (not shown) is respectively arranged on the outer sides of two side wall surfaces of the blade accommodating member 10 parallel to the blade 30, two fixed rods 52 are respectively installed on the outer sides of the blade accommodating member 10 through the installation member, and after the two fixed rods 52 are installed on the installation member, the movable handle can rotate around the installation member by different angles. Specifically, the mounting member may be formed by respectively providing a mounting shaft (not shown) on the blade accommodating member 10 outside the two side wall surfaces parallel to the blade 30, the two mounting shafts are hollow cylinders and coincide with the central axes of the two first through holes 12, the mounting shaft is provided with an external thread, the two fixing rods 52 are respectively provided with a mounting hole, the two fixing rods 52 are respectively sleeved on the mounting shaft through the respective mounting holes, and then nuts (not shown) are respectively mounted on the two mounting shafts, the tightness degree can be adjusted, specifically, applying a certain force can rotate the movable handle 50 around the mounting member, thereby adjusting the positional relationship between the movable handle 50 and the blade accommodating member 10, facilitating different operators to adjust the position of the movable handle, and adapting to the labor habit of the operator. Of course, the mounting member may be configured to allow the entire movable handle 50 to rotate around the mounting member, but the rotation angle may be discontinuous, which is a discontinuous rotation structure in the prior art.

In the present embodiment, one end of the fixed handle 40 near the blade accommodating member 10 is provided with an elliptical second through hole 41. The movable handle 50 is provided with an oval-shaped second through-hole 53 at an end thereof adjacent to the blade receiving member 10. The purpose of providing the second through holes in the fixed handle 40 and the movable handle 50 is to observe the cutting condition of the leather sheet during cutting.

During the use, holding fixed handle 40 on one hand, another holds movable handle 50, moves to same direction simultaneously, promotes blade 30 through the application of force to fixed handle 40 and movable handle 50 and rotates to cut the skin, during preparation particle skin, use novel surgical knife 100 of quick preparation particle skin to carry out "ten" word cutting back to the skin, can prepare 1mm x 1 mm's particle skin with the skin.

The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.

Claims

1. A novel surgical knife for rapidly preparing microskins is characterized by comprising:

a blade accommodating member having an accommodating chamber with one side opened;

at least one handle mounted on an exterior of the blade receiving member,

2. The novel surgical knife for rapidly preparing microskins according to claim 1, further comprising:

the cover plate is matched with the opening of the accommodating cavity, is arranged on the blade accommodating component and is positioned at the opening of the accommodating cavity, a plurality of grooves are formed in the cover plate at equal intervals, the grooves correspond to the blades respectively, and after the cover plate is arranged on the blade accommodating component, the blades respectively penetrate through the corresponding grooves.

3. The novel surgical knife for rapidly preparing microskins according to claim 2, characterized in that:

the blade accommodating member and the blade are parallel, the profiles of two side wall surfaces of the blade accommodating member are the same, the side wall surfaces comprise two sections of circular arcs, the two sections of circular arcs are respectively the bottom and the top of the side wall surfaces, the central lines of the two sections of circular arcs are overlapped, the blade accommodating member is in a straight hollow cylindrical shape with the two side wall surfaces as two bottom surfaces, and the straight hollow cylindrical shape has no side surface at the position corresponding to the circular arc at the top of the side wall surface.

4. The novel surgical knife for rapidly preparing microskins according to claim 2, characterized in that:

the distance between the central planes of two adjacent blades is less than or equal to 1 mm.

5. The novel surgical knife for rapidly preparing microskins according to claim 4, characterized in that:

every the width in groove is 0.7mm, adjacent two interval 0.3mm between the groove, the thickness of blade is 0.3mm, the radius of blade is 20mm, the lateral wall face is the semicircle that the radius is 22.5mm towards one side of bottom, the lateral wall face is the circular arc that the radius is 40mm towards open-ended one side.

6. The novel surgical knife for rapidly preparing microskins according to claim 1, characterized in that:

the number of the handles is two, namely a fixed handle and a movable handle, the fixed handle is fixed on the outer portion of the blade containing component, and one end of the movable handle is adjustably installed on the outer portion of the blade containing component.

7. The novel surgical knife for rapidly preparing microskins according to claim 1, characterized in that:

and one ends of the fixed handle and the movable handle close to the blade containing component are respectively provided with a second through hole.

8. The novel surgical knife for rapidly preparing microskins according to claim 6, characterized in that:

the fixed handle is inclined toward the bottom of the blade receiving member,

9. The novel surgical knife for rapidly preparing microskins according to claim 8, wherein:

two side wall surfaces of the blade accommodating component parallel to the blade are respectively provided with a first through hole, the central axes of the two first through holes are superposed, the two first through holes are respectively positioned on the central lines of the two side wall surfaces of the blade accommodating component parallel to the blade, two ends of the rotating shaft are respectively rotatably arranged on the two first through holes, two ends of the rotating shaft extend out of the blade accommodating component after the rotating shaft is arranged on the first through holes, two ends of the rotating shaft are respectively provided with a bearing,

10. The novel surgical knife for rapidly preparing microskins according to claim 8, wherein:

the blade holding component is provided with two mounting components on the outer sides of two side wall surfaces parallel to the blade, the two fixing rods are mounted on the outer side of the blade holding component through the mounting components respectively, and after the two fixing rods are mounted on the mounting components, the movable handle can rotate around the mounting components at different angles.