Medical instrument for scar resection

Abstract

The utility model belongs to the field of medical instruments, particularly relates to a medical instrument for scar excision, and aims to solve the problems that in the prior art, any angle adjustment is difficult to realize within the range, angle selection is not flexible enough, a supporting point is not arranged between a knife and a mold, and the cutting depth or non-straight cutting can occur in the knife holding cutting process. According to the scheme, the cutting device comprises a mold and a cutting knife, a connecting plate is arranged in the mold, two receding blocks are fixedly connected in the connecting plate, the sides, close to each other, of the two receding blocks form symmetrical radian angles, and the connecting plate can slide left and right in the mold; a supporting frame is arranged on the outer wall of the cutting knife, the cutting knife can conduct angle rotation in the supporting frame, angle range adjustment and height adjustment can be flexibly achieved, meanwhile, the angle matching effect can be achieved in the angle adjustment process, and the safety and the success rate of an operation are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a medical device for scar excision. Background Art

[0002] Thoracolumbar spine surgery is one of the common treatment methods. Most of these surgeries use a posterior median incision, which is generally long. When posterior internal fixation removal or other secondary surgery is required, the surgical approach is the same as the primary surgery. If the scar is not properly treated, it will often cause the scar to further increase, which not only affects the appearance, but may also cause pain, itching and other discomfort symptoms, bringing additional pain and inconvenience to the patient.

[0003] After searching, it was found that the invention with the publication number CN107260262A discloses a surgical scar remover for spinal surgery.

[0004] There are still some problems in the actual use of an existing spinal surgery scar remover.

[0005] 1. The angle between the mold through groove and the bottom surface of the mold is 55° to 80°. At the same time, it is connected to the lower opening through multiple through grooves. Although multiple through grooves can form an angle range of 55° to 80°, it is difficult to achieve arbitrary angle adjustment within this range, and the angle selection is not flexible enough.

[0006] 2. When using a long knife, although the limit sleeve of the knife can be moved to the appropriate position, there is no support point between the knife and the mold, and the cutting depth or the cutting will not be straight during the cutting process. Utility Model Content

[0007] The purpose of the utility model is to solve the shortcomings of the prior art, such as difficulty in achieving arbitrary angle adjustment within this range, insufficient flexibility in angle selection, lack of a support point between the knife and the mold, and insufficient cutting depth or uneven cutting during the knife cutting process, and to propose a medical device for scar excision.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A medical device for scar removal comprises a mold and a cutting knife. The mold is provided with a connecting plate, the connecting plate is provided with a square groove, two give-way blocks are fixedly connected in the square groove, and the two give-way blocks are close to each other on both sides and form a symmetrical arc angle, and the connecting plate can slide left and right in the mold; the outer wall of the cutting knife is provided with a support frame, and the cutting knife can be rotated at an angle in the support frame.

[0010] In one possible design, a giveway groove is provided in the mold, and the connecting plate is slidably connected in the giveway groove. A sliding groove is provided in the mold, and a connecting nut is slidably connected in the sliding groove. A screw rod is rotatably connected in the sliding groove, and one end of the screw rod is threadedly extended to the outside of the mold, one end of the screw rod is rotatably connected to the connecting nut, one side of the connecting nut is fixedly connected to the connecting plate, and the horizontal height of the screw rod is lower than the height of the connecting plate.

[0011] In a possible design, a limiting sleeve is provided in the support frame, the top of the support frame is fixedly connected to two arc grooves, both ends of the limiting sleeve are fixedly connected to arc blocks, and the arc blocks are slidably connected in the two arc grooves respectively.

[0012] In a possible design, two matching grooves are provided on the tops of the two clearance blocks, and an arc-shaped base is provided on the bottom of the support frame, and the arc-shaped base can rotate between the two matching grooves.

[0013] In a possible design, a T-slot is provided in the mold, and the top opening of the T-slot is large and the bottom opening is small, and the two clearance blocks move left and right in the T-slot.

[0014] In a possible design, scale lines are provided on one side of the cutting knife.

[0015] In a possible design, the middle of the bottom of the mold is higher than both ends, which makes it easier to observe the cutting area.

[0016] In this application, rotating the screw rod can drive the connecting nut to move on the outer wall of the screw rod, and then pull the connecting plate to move on the mold. The support frame can deflect the angle accordingly with the movement of the connecting plate through the arc-shaped base at the bottom to allow the cutting knife to pass through the T-slot. When the arc-shaped base is placed on two makeshift blocks, the depth of the knife cutting can be adjusted by the limit sleeve, and the arc-shaped block can slide in the arc-shaped groove, thereby making way for multi-angle cutting of the cutting knife.

[0017] Beneficial effects:

[0018] In the present invention, the scar excision medical device can accurately control the cutting depth and angle by adjusting the height of the support frame on the cutting knife and adjusting the angle between the two matching grooves through the arc-shaped base, thereby reducing surgical errors and improving the accuracy of scar excision.

[0019] In the present invention, the scar excision medical device can better adjust the cutting angle by adjusting the sliding of the connecting plate in the mold, thereby flexibly achieving angle control;

[0020] In the utility model, not only can the angle range adjustment and height adjustment be flexibly realized, but also the angle matching effect can be achieved during the angle adjustment process, thereby effectively improving the safety and success rate of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of a medical device mold for scar excision proposed by the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of a scar removal medical device cutting knife proposed in the utility model;

[0023] Figure 3 This is a schematic cross-sectional view of a medical device mold for scar excision proposed by the present invention;

[0024] Figure 4 This is a schematic cross-sectional view of a scar excision medical device support frame proposed by the present invention.

[0025] In the figure: 1. mold; 2. cutting knife; 3. support frame; 4. connecting plate; 5. clearance block; 6. connecting nut; 7. screw; 8. T-slot; 9. clearance slot; 10. sliding slot; 11. matching slot; 12. limiting sleeve; 13. arc block; 14. arc base; 15. arc slot. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Example 1

[0028] Reference Figures 1 to 3 , a medical device for scar removal, comprising:

[0029] The mold 1 and the cutting knife 2 are provided with a connecting plate 4 in the mold 1, a square groove is provided in the connecting plate 4, two give way blocks 5 are fixedly connected in the square groove, and the two give way blocks 5 are close to each other on one side and form a symmetrical arc angle, and the connecting plate 4 can slide left and right in the mold 1; the outer wall of the cutting knife 2 is provided with a support frame 3, and the cutting knife 2 can be rotated at an angle in the support frame 3. The mold 1 and the cutting knife 2 are matched and combined, and the two give way blocks 5 can be adjusted in position by sliding the connecting plate 4 left and right, thereby changing the cutting angle. The support frame 3 is on the outer wall of the cutting knife 2, which can assist the cutting knife 2 to achieve a certain angle offset.

[0030] Reference Figure 3A giveway groove 9 is provided in the mold 1, and the connecting plate 4 is slidably connected in the giveway groove 9. A sliding groove 10 is provided in the mold 1, and a connecting nut 6 is slidably connected in the sliding groove 10. A screw rod 7 is rotatably connected in the sliding groove 10, and one end of the screw rod 7 is threadedly extended to the outside of the mold 1, one end of the screw rod 7 is rotatably connected to the connecting nut 6, one side of the connecting nut 6 is fixedly connected to the connecting plate 4, the horizontal height of the screw rod 7 is lower than the height of the connecting plate 4, the screw rod 7 is rotatably connected to the connecting nut 6, so that when the screw rod 7 rotates, it can drive the connecting nut 6 to slide along the sliding groove 10, thereby driving the connecting plate 4 to move left and right, thereby achieving precise position adjustment.

[0031] Reference Figure 4 A limit sleeve 12 is provided in the support frame 3, and the top of the support frame 3 is fixedly connected to two arc grooves 15. Both ends of the limit sleeve 12 are fixedly connected with arc blocks 13, and the arc blocks 13 are respectively slidably connected in the two arc grooves 15. A rubber sleeve is provided in the limit sleeve 12, and the rubber sleeve can limit the height of the support frame 3 on the cutting knife 2. At the same time, the two arc blocks 13 can also slide in the two arc grooves 15 to assist the cutting knife 2 in adjusting a certain angle.

[0032] Reference Figure 4 Two matching grooves 11 are provided on the top of the two give way blocks 5, and an arc-shaped base 14 is provided at the bottom of the support frame 3, and the arc-shaped base 14 can be rotated between the two matching grooves 11, and the arc-shaped base 14 can be rotated between the two matching grooves 11 to realize the angle adjustment between the cutting knife 2 and the connecting plate 4.

[0033] Reference Figure 4 A T-slot 8 is provided in the mold 1, and the top opening of the T-slot 8 is large and the bottom opening is small. The two makeshift blocks 5 move left and right in the T-slot 8. The top opening of the T-slot 8 is large and the bottom opening is small. This design helps to guide the stability of the two makeshift blocks 5 during the left and right movement, and also facilitates the adjustment of the cutting angle.

[0034] Reference Figure 2 , a scale line is provided on one side of the cutting knife 2, which is convenient for the doctor to accurately adjust the cutting depth of the cutting knife 2 during the operation, thereby improving the accuracy of the operation.

[0035] Example 2

[0036] refer to Figure 1 , improved on the basis of embodiment 1: the middle position of the bottom of the mold 1 is higher than the two ends, which is convenient for observing the cutting part, and the cutting area can be observed more clearly, thereby improving the safety and success rate of the operation.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A medical device for scar removal, characterized in that: include: A mold (1) and a cutting knife (2), wherein a connecting plate (4) is provided in the mold (1), a square groove is provided in the connecting plate (4), two paving blocks (5) are fixedly connected in the square groove, and the two paving blocks (5) are close to each other at symmetrical arc angles, and the connecting plate (4) can slide left and right in the mold (1); A support frame (3) is provided on the outer wall of the cutting knife (2), and the cutting knife (2) can be angularly rotated within the support frame (3).

2. The medical device for scar removal according to claim 1, characterized in that: A clearance groove (9) is provided in the mold (1), and the connecting plate (4) is slidably connected in the clearance groove (9). A sliding groove (10) is provided in the mold (1), and a connecting nut (6) is slidably connected in the sliding groove (10). A screw rod (7) is rotatably connected in the sliding groove (10), and one end of the screw rod (7) is threadedly extended to the outside of the mold (1). One end of the screw rod (7) is rotatably connected to the connecting nut (6), and one side of the connecting nut (6) is fixedly connected to the connecting plate (4). The horizontal height of the screw rod (7) is lower than the height of the connecting plate (4).

3. The medical device for scar removal according to claim 1, characterized in that: A limiting sleeve (12) is provided in the support frame (3), the top of the support frame (3) is fixedly connected to two arc-shaped grooves (15), both ends of the limiting sleeve (12) are fixedly connected to arc-shaped blocks (13), and the arc-shaped blocks (13) are respectively slidably connected in the two arc-shaped grooves (15).

4. The medical device for scar removal according to claim 1, characterized in that: Two matching grooves (11) are provided on the tops of the two clearance blocks (5), and an arc-shaped base (14) is provided on the bottom of the support frame (3), and the arc-shaped base (14) can rotate between the two matching grooves (11).

5. The medical device for scar removal according to claim 1, characterized in that: The mold (1) is provided with a T-shaped slot (8), and the top opening of the T-shaped slot (8) is large and the bottom opening is small, and the two clearance blocks (5) move left and right in the T-shaped slot (8).

6. The medical device for scar removal according to claim 1, characterized in that: A scale line is provided on one side of the cutting knife (2).

7. The medical device for scar removal according to claim 1, characterized in that: The middle position of the bottom of the mold (1) is higher than the two ends, which makes it easier to observe the cutting position.

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