Device for determining incision of skin tumor
By using equal-length imprints and a diamond-shaped frame adjustment system on the skin surface, the problem of uneven incisions is solved, ensuring neat and aesthetically pleasing sutures.
Patent Information
- Application Number
- CN202611523260.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-09-29
- Publication Date
- 2026-11-03
AI Technical Summary
In existing technologies, the design of surgical incisions for skin tumors relies on visual inspection or experience, making it difficult to ensure that the two sides of the incision are of equal length, resulting in uneven suturing and the "cat ear" phenomenon, which affects the appearance.
Using a first and second imprint strip of equal length, spindle-shaped or date-shaped imprints are made on the skin surface through an elastic material. Combined with a rhomboid frame and an adjusting screw system, the two sides of the incision are aligned neatly, and the protrusion at the end of the incision is eliminated by adjusting the curvature.
This method achieves aligned sutures on both sides of the incision, avoiding the "cat ear" phenomenon and improving the aesthetic appearance of the surgical incision.
Smart Images

Figure CN123023930A_ABST
Abstract
Description
Technical Field
[0001] This application relates to a medical device, and more particularly to a device for determining incisions for skin tumors. Background Technology
[0002] Various benign or malignant lesions on the surface of human skin, such as pigmented nevi, hemangiomas, and basal cell carcinomas, generally require surgical removal. For smaller lesions, a fusiform excision is usually performed followed by direct suturing. Before surgery, a fusiform incision is designed around the lesion using a suture pen. The skin and subcutaneous tissue are cut through to the full thickness and then excised. The subcutaneous tissue is then sutured with absorbable sutures, followed by interrupted or continuous suturing of the outer layer of skin. This incision design usually relies on visual inspection or the surgeon's experience, making it difficult to ensure that the lengths of both sides of the incision are equal. If the incisions on both sides are not the same length, it will be difficult to align them neatly during suturing, and unevenness will easily appear after the sutures heal. In addition, because the included angle at both ends of the fusiform incision is large, it can easily cause deformation of the surrounding skin outside the incision after suturing, forming protrusions at both ends of the skin, commonly known as "cat ears," which affects the appearance. Summary of the Invention
[0003] In view of the above problems, this application aims to provide a device for identifying incisions for skin tumors, which can form a spindle-shaped or date-shaped imprint on the skin surface of a subject. The spindle-shaped imprint is used to indicate the surgical incision, and the two sides of the imprint are of equal length to ensure that the two sides of the incision are neatly aligned after suturing.
[0004] The device for determining an incision for a skin tumor according to this application includes: an impression component; The impression component includes a first impression strip and a second impression strip; each impression strip is formed into a strip shape; the first impression strip and the second impression strip are of equal length, and their head and tail ends are fixed together respectively to form a spindle shape or a date pit shape; the impression component is used to imprint an impression on the skin surface of the subject through its posterior edge to indicate the incision for excising the skin mass.
[0005] Preferably, the first and second printing strips of the printing mold component are made of elastic metal or plastic.
[0006] Preferably, it further includes frame members; The frame structure is a rigid rhomboid frame; the rhomboid frame includes a first half-frame and a second half-frame; the first half-frame corresponds to the first printing strip; the first half-frame is shaped like a "<" and includes two vertically arranged, end-to-end straight sub-plates; the second half-frame corresponds to the second printing strip; the second half-frame is shaped like a ">" and includes two vertically arranged, end-to-end straight sub-plates; the first half-frame and the second half-frame are connected end-to-end to form a rhombus. The impression component is installed in the rhomboid frame, and the rear edge of the impression component is located outside the frame component; A first waist adjustment screw is formed extending outward from the middle of the first imprint strip of the impression component; a first through hole is correspondingly formed in the waist of the first half-frame; the end of the first waist adjustment screw extends outward from the first through hole; a first waist adjustment nut is installed at the end of the first waist adjustment screw, and the distance between the middle of the first imprint strip and the middle of the first half-frame is adjusted by the position of the first waist adjustment nut on the first waist adjustment screw; a second waist adjustment screw is formed extending outward from the middle of the second imprint strip of the impression component; the waist of the second half-frame is correspondingly formed in the middle of the first waist adjustment screw. A second through hole is formed; the end of the second waist adjusting screw extends from the second through hole to the outside; a second waist adjusting nut is installed at the end of the second waist adjusting screw, and the distance between the middle of the second imprint and the middle of the second half frame is adjusted by the position of the second waist adjusting nut on the second waist adjusting screw; thereby, the middle width of the impression component is adjusted by adjusting the distance between the middle of the first imprint and the middle of the first half frame, and the distance between the middle of the second imprint and the middle of the second half frame, to accommodate the size of the skin mass.
[0007] Preferably, a cover plate is formed on the upper part of the joint between the first half frame and the second half frame; the cover plate is located on the front side of the frame member and is used to limit the imprint member on the front side; the first and second imprint strips of the imprint member are located on the rear side of the corresponding cover plate.
[0008] Preferably, a threaded through hole is formed in the middle of each sub-plate of the first half-frame and the second half-frame of the rhombic frame; an arc adjustment screw is installed in each threaded through hole; the front end of the screw abuts against the outer side of the corresponding first or second printing strip, for applying pressure to the corresponding first or second printing strip on the outer side, so that the corresponding part of the corresponding first or second printing strip protrudes towards the interior of the printing mold component, forming an inward arc shape.
[0009] Preferably, each sub-plate of the first and second half-frames of the rhombic frame has an elongated through hole along its length. For each elongated through-hole, an upper baffle and a lower baffle are formed on the upper and lower sides of the elongated through-hole, respectively; the upper baffle and the lower baffle are both located on the side facing the impression component; the cross-section of the upper baffle is "┑" shaped, and the cross-section of the lower baffle is "┛" shaped; the upper baffle and the lower baffle together form a slot; an insert plate is slidably installed in the slot; a threaded through-hole is formed in the middle of the insert plate; an arc adjustment screw is installed in each threaded through-hole; the front end of the arc adjustment screw abuts against the outer surface of the corresponding first or second imprint, for applying pressure to the corresponding first or second imprint on the outer surface, so that the corresponding part of the corresponding first or second imprint protrudes towards the interior of the impression component, forming an inwardly curved part; by screwing the corresponding arc adjustment screw in and out of the threaded hole, the depth of the front end of the arc adjustment screw inserted into the rhomboid frame is adjusted, thereby adjusting the arc of the inwardly curved part of the corresponding first or second imprint of the impression component.
[0010] Preferably, an arc adjustment screw fixing nut is installed at the rear of each arc adjustment screw. By tightening the arc adjustment screw fixing nut, the arc adjustment screw is stably maintained at the desired position of the corresponding elongated through hole.
[0011] Preferably, a filling block is formed on the rear side of each cover plate, and a guide groove is formed in the filling block; The first and second printing bars are fixed together at their beginning and end points, respectively, and are formed in a straight line shape. When the length of the entire printing mold component changes due to the adjustment of the width of the middle part of the printing mold component, the first and second printing bars can slide together at their beginning and end points in the corresponding guide grooves.
[0012] Preferably, each cover plate has a forward-extending handle formed on its front side.
[0013] The device for determining incisions for skin tumors according to this application can use a first and second imprint strip of equal length to imprint an equal-length incision indicator line on the desired location on the subject's skin surface. This prevents difficulties in neat alignment during subsequent incision suturing due to unequal lengths of the two sides of the incision. The device can adjust the width of the middle section of the imprint component and the curvature of the arc sections of the first and second imprint strips according to the condition of the tumor, thus forming symmetrical or asymmetrical incision indicator lines as needed. Furthermore, the device's inward-curving portion ensures a smooth transition between the upper and lower ends of the incision, preventing the formation of "cat ears" on the outer skin surface of the incision ends after suturing. Attached Figure Description
[0014] Figure 1 , 2 This is a three-dimensional structural diagram of the device for determining incision sites for skin tumors according to the present invention.
[0015] Figure 3 for Figure 1 A schematic diagram of the main structure of a device used to determine the incision site for skin tumors.
[0016] Figure 4 for Figure 1 A rear view schematic diagram of a device used to determine the incision site for skin tumors.
[0017] Figure 5 for Figure 1 A top view of the device used to determine the incision site for skin tumors.
[0018] Figure 6 , 7 for Figure 1 A three-dimensional structural diagram of the frame components used to determine the incision site for skin tumors.
[0019] Figure 8 for Figure 1 A three-dimensional structural diagram of an impression component used to determine the incision site for a skin tumor.
[0020] Figure 9 for Figure 8 A schematic diagram of the main structure of the impression component. Detailed Implementation
[0021] The present application will now be described in detail with reference to the accompanying drawings.
[0022] The device for determining incisions for skin tumors according to this application includes: an impression member 20.
[0023] The impression component 20 includes a first impression strip 21a and a second impression strip 21b; each impression strip is formed into a long strip; the first impression strip 21a and the second impression strip 21b are of equal length, and their first and last ends are fixed together respectively to form a spindle shape or a date pit shape. Imprinting member 20 is used to imprint an impression on the subject’s skin surface through its rear edge, indicating an incision for excising a skin mass.
[0024] The first and second stamps of the impression component 20 are made of elastic metal or plastic.
[0025] The device for determining the incision site of a skin tumor according to this application also includes a frame member 10.
[0026] The frame structure 10 is a rigid rhomboid frame made of metal or plastic.
[0027] The rhomboid frame includes a first half-frame 11a and a second half-frame 11b.
[0028] The first half-frame 11a corresponds to the first printing strip 21a; the first half-frame 11a is shaped like a "<", including two vertically arranged, end-to-end straight sub-plates. The second half-frame 11b corresponds to the second printing strip 21b; the second half-frame 21b is shaped like a ">", including two vertically arranged, end-to-end straight sub-plates; the first half-frame 11a and the second half-frame 11b are connected end-to-end, thus forming a rhomboid frame.
[0029] The impression component 20 is installed in the rhomboid frame, and the rear edge of the impression component 20 is located outside the frame component 10.
[0030] A first waist adjustment screw 22a is formed extending outward from the middle of the first imprint strip 21a of the impression component 20; a first through hole 12a is correspondingly formed on the waist of the first half-frame 11a; the end of the first waist adjustment screw 22a extends outward from the first through hole 12a; a first waist adjustment nut 23a is installed on the end of the first waist adjustment screw 22a, and the distance between the middle of the first imprint strip 21a and the middle of the first half-frame is adjusted by the position of the first waist adjustment nut 23a on the first waist adjustment screw 22a; a second waist adjustment screw 22b is formed extending outward from the middle of the second imprint strip 21b of the impression component 20; the second half-frame 11b... A second through hole 12b is formed in the waist area; the end of the second waist adjustment screw 22b extends from the second through hole 12b to the outside; a second waist adjustment nut 23b is installed at the end of the second waist adjustment screw 22b, and the distance between the middle of the second imprint 21b and the middle of the second half frame 11b is adjusted by the position of the second waist adjustment screw 22b with the second waist adjustment nut 23b; thereby, the middle width of the impression member 20 is adjusted by adjusting the distance between the middle of the first imprint 21a and the middle of the first half frame 11a, and the distance between the middle of the second imprint 21b and the middle of the second half frame 11b, so as to adapt to the size of the skin mass.
[0031] Cover plates 18 are formed on the upper part of the joint between the first half-frame 11a and the second half-frame 11b.
[0032] The cover plate 18 is located on the front side of the frame member 10 and is used to limit the impression member 20 on the front side. The first and second impression strips 21a and 21b of the impression member 20 are respectively located on the rear side of the cover plate 18.
[0033] In one embodiment, a threaded through hole is formed in the middle of each sub-plate of the first half-frame 11a and the second half-frame 11b of the rhombic frame; an arc adjustment screw is installed in each threaded through hole; the front end of the screw abuts against the outer side of the corresponding first or second printing strip, for applying pressure to the corresponding first or second printing strip on the outer side, so that the corresponding part of the corresponding first or second printing strip protrudes toward the interior of the printing mold component, forming an inward arc shape.
[0034] In another embodiment, each sub-plate of the first half-frame 11a and the second half-frame 11b of the rhomboid frame has an elongated through hole 13 along its length direction.
[0035] For each elongated through-hole 13, an upper baffle 14a and a lower baffle 14b are formed on the upper and lower sides of the elongated through-hole 13, respectively; the upper baffle 14a and the lower baffle 14b are both located on the side facing the impression member 20; the cross-section of the upper baffle 14a is “┑”-shaped, and the cross-section of the lower baffle 14b is “┛”-shaped; the upper baffle 14a and the lower baffle 14b together form a slot; an insert plate 15 is slidably installed in the slot; a threaded through-hole is formed in the middle of the insert plate 15; an arc adjustment screw 16 is installed in each threaded through-hole; the front end of the arc adjustment screw 16 abuts against On the outer surface of the corresponding first imprint 21a or second imprint 21b, pressure is applied to the outer surface of the corresponding first imprint 21a or second imprint 21b, causing the corresponding portion of the corresponding first imprint 21a or second imprint 21b to bulge towards the interior of the impression component, forming an inwardly curved portion; by screwing in and out the corresponding curvature adjustment screw 16 in the threaded hole, the depth of the front end of the curvature adjustment screw 16 inserted into the rhomboid frame is adjusted, thereby adjusting the curvature of the inwardly curved portion of the corresponding first imprint 21a or second imprint 21b of the impression component 20.
[0036] An adjustment screw fixing nut 17 is installed at the rear of each curvature adjustment screw 16. By tightening the adjustment screw fixing nut 17, the curvature adjustment screw 16 is stably held in the desired position of the corresponding elongated through hole 13. By adjusting the position of the curvature adjustment screw 16, the inward position of the curvature portion can be adjusted according to actual needs.
[0037] Each cover plate 18 has a filling block 1A formed on its rear side, and a guide groove 1B is formed in the filling block 1A.
[0038] The first and second imprint strips 21a and 21b are fixed together at their beginning and end points, respectively, and are formed in a straight line shape. When the length of the entire impression component 20 changes due to the adjustment of the middle width of the impression component, the first and second imprint strips 21a and 21b can slide in the corresponding guide grooves 1B respectively.
[0039] Each cover plate 16 has a forward-extending handle 19 formed on its front side. The handles 19 on both sides allow for easy operation of the entire device to imprint spindle-shaped or date-shaped incision lines on the subject's skin surface.
[0040] In use, first adjust the width of the impression component by rotating the waist adjusting nut on the waist adjusting screw, depending on the condition of the tumor. Then, adjust the position of each insert plate as needed, and adjust the inward curvature of the upper and lower curved sections of each impression strip using the curve adjusting nuts and screws. After adjusting the entire impression component, hold the handles on both sides and make an impression on the patient's skin corresponding to the tumor location. Medically acceptable pigment can be applied to the rear edge of the impression component to make the impression more visible.
Claims
1. An apparatus for determining an incision site for a skin mass, comprising: Imprint components; The impression component includes a first impression strip and a second impression strip; each impression strip is formed into a strip shape; the first impression strip and the second impression strip are of equal length, and their head and tail ends are fixed together respectively to form a spindle shape or a date pit shape; the impression component is used to imprint an impression on the skin surface of the subject through its posterior edge to indicate the incision for excising the skin mass.
2. The apparatus for determining incision sites for skin tumors according to claim 1, characterized in that: The first and second imprint strips of the impression component are made of elastic metal or plastic.
3. The apparatus for determining incision sites for skin tumors according to claim 2, characterized in that... The device for determining the incision site for a skin mass further includes a frame member; The frame structure is a rigid rhomboid frame; the rhomboid frame includes a first half-frame and a second half-frame; the first half-frame corresponds to the first imprint strip; the first half-frame is shaped like a "<", including two vertically arranged, end-to-end straight sub-plates; the second half-frame corresponds to the second imprint strip; the second half-frame is shaped like a ">", including two vertically arranged, end-to-end straight sub-plates; the first half-frame and the second half-frame are connected end-to-end to form a rhombus. The impression component is installed in the rhomboid frame, and the rear edge of the impression component is located outside the frame component; A first waist adjustment screw is formed extending outward from the middle of the first imprint strip of the impression component; a first through hole is correspondingly formed in the waist of the first half-frame; the end of the first waist adjustment screw extends outward from the first through hole; a first waist adjustment nut is installed at the end of the first waist adjustment screw, and the distance between the middle of the first imprint strip and the middle of the first half-frame is adjusted by the position of the first waist adjustment nut on the first waist adjustment screw; a second waist adjustment screw is formed extending outward from the middle of the second imprint strip of the impression component; the waist of the second half-frame is correspondingly formed in the middle of the first waist adjustment screw. A second through hole is formed; the end of the second waist adjusting screw extends from the second through hole to the outside; a second waist adjusting nut is installed at the end of the second waist adjusting screw, and the distance between the middle of the second imprint and the middle of the second half frame is adjusted by the position of the second waist adjusting nut on the second waist adjusting screw; thereby, the middle width of the impression component is adjusted by adjusting the distance between the middle of the first imprint and the middle of the first half frame, and the distance between the middle of the second imprint and the middle of the second half frame, to accommodate the size of the skin mass.
4. The apparatus for determining the incision site of a skin tumor according to claim 2, characterized in that: Cover plates are formed on the upper part of the joint between the first half frame and the second half frame; the cover plates are located on the front side of the frame member and are used to limit the imprint member on the front side; the first and second imprint strips of the imprint member are located on the rear side of the corresponding cover plates.
5. The apparatus for determining the incision site of a skin tumor according to claim 2, characterized in that: Each sub-plate of the first and second half of the rhomboid frame has a threaded through hole in its middle; an arc adjustment screw is installed in each threaded through hole; the front end of the screw abuts against the outer side of the corresponding first or second stamp, and is used to apply pressure to the corresponding first or second stamp on the outer side, so that the corresponding part of the first or second stamp protrudes towards the interior of the mold component, forming an inward arc shape.
6. The apparatus for determining incision sites for skin tumors according to claim 5, characterized in that: Each sub-plate of the first and second half of the rhomboid frame has an elongated through hole along its length. For each elongated through-hole, an upper baffle and a lower baffle are formed on the upper and lower sides of the elongated through-hole, respectively; the upper baffle and the lower baffle are both located on the side facing the impression component; the cross-section of the upper baffle is "┑" shaped, and the cross-section of the lower baffle is "┛" shaped; the upper baffle and the lower baffle together form a slot; an insert plate is slidably installed in the slot; a threaded through-hole is formed in the middle of the insert plate; an arc adjustment screw is installed in each threaded through-hole; the front end of the arc adjustment screw abuts against the outer surface of the corresponding first or second imprint, for applying pressure to the corresponding first or second imprint on the outer surface, so that the corresponding part of the corresponding first or second imprint protrudes towards the interior of the impression component, forming an inwardly curved part; by screwing the corresponding arc adjustment screw in and out of the threaded hole, the depth of the front end of the arc adjustment screw inserted into the rhomboid frame is adjusted, thereby adjusting the arc of the inwardly curved part of the corresponding first or second imprint of the impression component.
7. The apparatus for determining incision sites for skin tumors according to claim 6, characterized in that: An adjustment screw fixing nut is installed at the rear of each adjustment screw. By tightening the adjustment screw fixing nut, the adjustment screw is stably held in the desired position of the corresponding elongated through hole.
8. The apparatus for determining incision sites for skin tumors according to claim 4, characterized in that: Each cover plate has a filling block formed on its rear side, and a guide groove is formed in the filling block; The first and second printing bars are fixed together at their beginning and end points, respectively, and are formed in a straight line shape. When the length of the entire printing mold component changes due to the adjustment of the width of the middle part of the printing mold component, the first and second printing bars can slide together at their beginning and end points in the corresponding guide grooves.
9. The apparatus for determining incision sites for skin tumors according to claim 4, characterized in that: Each cover plate has a forward-extending handle formed on its front side.
