Device for assisting blade in breaking skin

Abstract

The device comprises an upper clamping plate, a lower clamping plate and an arc-shaped spring, the middle position of the upper clamping plate is rotationally connected with the middle position of the lower clamping plate through a rotating shaft, an upper through opening and a lower through opening are correspondingly formed in the upper clamping plate and the lower clamping plate respectively, and the upper through opening and the lower through opening are both located on the left side of the rotating shaft. The two ends of the arc-shaped spring are fixedly connected with the upper end face of the right end of the upper clamping plate and the lower end face of the right end of the lower clamping plate correspondingly, the arc-shaped spring penetrates through the upper through opening and the lower through opening, and elastic chucks are fixedly installed on the end faces, close to each other, of the right ends of the upper clamping plate and the lower clamping plate. The surgical blade can effectively limit the skin breaking depth of the blade, can prompt the skin breaking width, is simple in overall structure, low in manufacturing cost, safe and convenient to operate and comfortable to stress for medical staff, can be used as an accessory, does not need to modify the structure of an existing surgical blade, and is more convenient to popularize and apply clinically.

Description

Technical Field

[0001] This utility model belongs to the field of medical devices, specifically the field of blade abrasion, and more specifically, it is a device that assists in blade abrasion. Background Technology

[0002] Interventional catheter placement is widely used in clinical practice, such as for pleural and peritoneal effusion drainage, percutaneous transhepatic biliary drainage, nephrostomy, cholecystostomy, etc. Operators can use the one-step method (Trocar puncture method) and the two-step method (Seldinger method) to place the drainage tube. To reduce skin resistance and facilitate smooth insertion of the drainage tube, both methods involve a step of puncturing the skin with a blade. The operator will select a drainage tube of different diameters according to the specific procedure and the nature of the drainage fluid. The skin puncture width is slightly smaller than the diameter of the drainage tube, which can help the drainage tube to be placed smoothly while reducing the occurrence of complications such as puncture site leakage.

[0003] Currently, when using surgical blades to puncture the skin, it is difficult to precisely control the depth and width of the puncture. There is a lack of devices that can limit the depth of punctures to fit various types of blades. Furthermore, existing technologies use integrated puncture blades that control the depth of punctures by adjusting the exposed length of the blade tip. However, these blades are expensive to manufacture, making them difficult to use widely. They also lack markings and cannot indicate the width of the puncture. Utility Model Content

[0004] This utility model presents a technical solution for an auxiliary blade for skin breaking, which combines the technical effects of controlling the skin breaking depth and indicating the skin breaking width. It is also small in size, low in cost, and highly scalable, thereby solving the technical problems existing in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for assisting in shaving with a blade includes an upper clamping plate, a lower clamping plate, and an arc-shaped spring. The upper clamping plate is rotatably connected to the lower clamping plate via a rotating shaft. The upper clamping plate has an upper opening, and the lower clamping plate has a lower opening, both of which are located to the left of the rotating shaft. The two ends of the arc-shaped spring pass through the upper opening and the lower opening, respectively. One end of the arc-shaped spring is fixedly connected to the end face of the right end of the upper clamping plate, and the other end of the arc-shaped spring is fixedly connected to the end face of the right end of the lower clamping plate. Elastic clamps are fixedly installed on the close-to-each end faces of the right ends of the upper and lower clamping plates.

[0007] Preferably, both the upper clamping plate and the lower clamping plate are made of hard plastic.

[0008] Preferably, the elastic clamp is made of elastic rubber.

[0009] Preferably, mounting screws are fixedly installed on the left end face of the upper clamping plate and the left end face of the lower clamping plate that are far from each other. An auxiliary handle is movably fitted on the mounting screw, and a locking nut is threaded on the mounting screw on the side of the auxiliary handle that is far from the upper clamping plate.

[0010] Preferably, a positioning mechanism is installed between the upper clamping plate and the lower clamping plate, and the positioning mechanism is located on the right side of the rotating shaft.

[0011] More preferably, the positioning mechanism includes a positioning block located between the rotating shaft and the clamp, with side plates symmetrically fixedly installed at both ends of the positioning block, and the side plates being detachably connected to both sides of the upper clamping plate and the lower clamping plate respectively via set screws.

[0012] More preferably, the lower end of the positioning block is fixedly connected to a slider, and the upper surface of the right end of the lower clamping plate is provided with a sliding groove, and the slider and the sliding groove are slidably connected.

[0013] More preferably, a triangular positioning groove is provided at the right end of the positioning block.

[0014] Preferably, the upper clamping plate and the lower clamping plate are provided with scale lines on their sides.

[0015] The beneficial effects of this utility model are:

[0016] 1) The auxiliary blade skin-piercing device provided by this utility model is used by medical staff to pinch the left ends of the upper and lower clamps towards each other. At this time, the arc spring generates elastic deformation, causing the two elastic clamps to separate. Then, the blade is placed between the two elastic clamps and released. The arc spring returns to its deformation, and the two elastic clamps can be clamped on the blade. The friction between the elastic clamps made of rubber and the blade can play a good role in fixing and limiting. The device can be flexibly adjusted according to the required depth and width of skin piercing, and fixed on the blade at different angles, so that the length and depth of the blade tip meet the required depth and width of skin piercing. It can be applied to various uneven locations on the body surface, such as the armpit and supraclavicular fossa.

[0017] 2) The auxiliary blade skin-piercing device provided by this utility model allows medical personnel to attach the auxiliary handle to the mounting screw and adjust the angle between the auxiliary handle and the upper and lower clamps as needed. After adjustment, tighten the locking nut. Medical personnel can then hold the auxiliary handle to control the skin-piercing device and complete the skin-piercing procedure. This design avoids the problem that when operating at narrow or demanding angles, the upper and lower clamps might obstruct the skin-piercing area, thus affecting the surgical outcome.

[0018] 3) This auxiliary blade skin-breaking device allows for adjustment of the positioning block position according to the blade size. During adjustment, loosen the set screw to separate the side plate from the lower clamping plate, and then adjust the positioning block along the slide groove. At this time, the slider slides in the slide groove. After adjustment, tighten the set screw to re-fix the side plate to the upper and lower clamping plates. When installing the blade, first separate the two clamps, then place one end of the blade in the triangular positioning groove, and then close the two clamps to fix the clamping plate. Through the above design, the side end of the blade can be easily guided, so that the device and the blade body are in the required position, thereby determining the length of the blade tip, thus making skin breaking more accurate.

[0019] This invention can effectively limit the depth of skin abrasion by the scalpel blade, while also indicating the width of the abrasion. It is simple to manufacture, has low production cost, is safe and convenient to operate, provides comfortable force for medical staff, and can be used as an accessory without modifying the scalpel blade, making it easier to promote its clinical application. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a device for assisting blade in breaking skin, as proposed in this utility model;

[0021] Figure 2 This invention provides a schematic diagram of the rear structure of an auxiliary blade for skin-breaking device. Figure 1 ;

[0022] Figure 3 This is a schematic diagram of the positioning mechanism in an auxiliary blade skin-breaking device proposed in this utility model;

[0023] Figure 4 This invention provides a schematic diagram of the rear structure of an auxiliary blade for skin-breaking device. Figure 2 ;

[0024] Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle.

[0025] The numbers in the diagram are as follows: 1 is the upper clamping plate, 2 is the auxiliary handle, 3 is the mounting screw, 4 is the locking nut, 5 is the upper opening, 6 is the arc spring, 7 is the elastic chuck, 8 is the scale line, 9 is the lower clamping plate, 10 is the positioning mechanism, 11 is the lower opening, 1001 is the positioning block, 1002 is the triangular positioning groove, 1003 is the set screw, 1004 is the side plate, 12 is the slider, and 13 is the sliding groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0027] Reference Figure 1 and Figure 2 A device for assisting a blade in piercing skin includes an upper clamping plate 1, a lower clamping plate 9, and an arc-shaped spring 6. The upper clamping plate 1 is rotatably connected to the lower clamping plate 9 at its middle position via a rotating shaft. The upper clamping plate 1 and the lower clamping plate 9 are respectively provided with an upper opening 5 and a lower opening 11, and both the upper opening 5 and the lower opening 11 are located on the left side of the rotating shaft. The two ends of the arc-shaped spring 6 are fixedly connected to the upper end face of the right end of the upper clamping plate 1 and the lower end face of the right end of the lower clamping plate 9, respectively. The arc-shaped spring 6 passes through the upper opening 5 and the lower opening 11. Elastic clamps 7 are fixedly installed on the right end faces of the upper clamping plate 1 and the lower clamping plate 9, close to each other.

[0028] In this embodiment, the upper clamping plate 1 and the lower clamping plate 9 are both made of hard plastic, while the elastic clamp 7 can be made of elastic rubber.

[0029] In use, medical staff pinch the left ends of the upper splint 1 and the lower splint 9 towards each other. At this time, the arc spring 6 undergoes elastic deformation, causing the two elastic clamps 7 to separate. Then, the scalpel blade is placed between the two elastic clamps 7 and released. The arc spring 6 returns to its original deformation, clamping the two elastic clamps 7 onto the blade. The deformation of the elastic clamps 7 themselves can also clamp the blade. The friction between the elastic rubber clamps 7 and the blade provides a fixing effect, while the limiting effect can be flexibly adjusted according to the required depth and width of skin penetration. This ensures that the effective length of the skin penetration tip meets the usage requirements. At the same time, the device can be fixed to the blade at multiple angles, allowing the skin penetration tip to have different lengths, and thus different skin penetration depths and widths. This makes it suitable for various uneven areas on the body surface, such as the armpit and supraclavicular fossa.

[0030] The way this utility model is fixed to the blade allows it to be better adapted to the surgical blade without any modification to the blade. This utility model is used in the blade skin-breaking step of the puncture and drainage procedure. During the use of the blade, there is no large-scale movement such as scratching the skin. The elastic clamp 7 and the blade body will not slide. The principle of friction provides sufficient limiting effect, making the operation safe and simple, the force point comfortable, and no additional fixing operation is required.

[0031] This invention is mainly used for skin puncture and drainage in various procedures, rather than skin incision in traditional surgery. The diameter of the drainage tubes, which range from 6Fr to 14Fr, varies considerably, but the device using this invention has excellent adaptability.

[0032] The top front end face of the lower clamping plate 9 is provided with a scale line 8. In this embodiment, the scale line 8 can be set to be parallel to the horizontal line.

[0033] The scale line 8 set in this utility model can intuitively assess the width of the skin abrasion. In clinical practice, it is very meaningful in avoiding too much or too little skin abrasion. By adjusting the angle between this utility model and the blade, various skin abrasion depths and skin abrasion widths can be matched, avoiding the situation where increasing the skin abrasion width must be accompanied by increasing the skin abrasion depth. Example

[0034] Reference Figure 1 A device for assisting a blade in breaking skin includes an upper clamping plate 1 and a lower clamping plate 9. The left ends of the upper clamping plate 1 and the lower clamping plate 9 are each fixedly mounted with a mounting screw 3 away from each other. An auxiliary handle 2 is movably fitted on the mounting screw 3. A locking nut 4 is threaded on the mounting screw 3 on the side of the auxiliary handle 2 away from the upper clamping plate 1.

[0035] Medical staff can attach the auxiliary handle 2 to the mounting screw 3 and adjust the angle between the auxiliary handle 2 and the upper clamp 1 and lower clamp 9 as needed. After adjustment, tighten the locking nut 4, and the medical staff can hold the auxiliary handle 2 to complete the skin incision. The above design can avoid the problem that the upper clamp 1 and lower clamp 9 will obstruct the skin incision site when operating at narrow or demanding angles, thus affecting the surgical outcome. Example

[0036] Reference Figures 3 to 5 A device for assisting a blade in breaking skin includes an upper clamping plate 1 and a lower clamping plate 9. A positioning mechanism 10 is installed between the right ends of the upper clamping plate 1 and the lower clamping plate 9. The positioning mechanism 10 includes a positioning block 1001, which is located between the right ends of the upper clamping plate 1 and the lower clamping plate 9 and to the left of the elastic clamp 7. Side plates 1004 are symmetrically fixed at the front and rear ends of the positioning block 1001, and the side plates 1004 are detachably fixed to the upper clamping plate 1 and the lower clamping plate 9 respectively by set screws 1003. A slider 12 is fixedly installed at the lower end of the positioning block 1001. A groove 13 is opened on the upper surface of the right end of the lower clamping plate 9, and the slider 12 and the groove 13 are slidably connected in the horizontal direction. A triangular positioning groove 1002 is opened at the right end of the positioning block 1001.

[0037] The position of the positioning block 1001 can be adjusted according to the size of the scalpel blade and the need for skin incision. During adjustment, loosen the set screw 1003 to separate the side plate 1004 from the upper clamping plate 1 and the lower clamping plate 9 respectively. Then adjust the positioning block 1001 along the direction of the slide groove 13. At this time, the slider 12 slides in the slide groove 13. Then install the blade. First, separate the two elastic clamps 7, then place one end of the blade in the triangular positioning groove 1002, and then close the two elastic clamps 7 to fix the blade. After the position of the blade is adjusted, finally tighten the set screw 1003 again to fix the side plate 1004 back to the upper clamping plate 1 and the lower clamping plate 9. This completes the installation of the blade.

[0038] The above design facilitates the guidance of the blade side, allowing for better adjustment of the clamping position between the device and the blade. Under the guidance of the slider 12 and the indication of the scale line 8, the positioning block 1001 can clearly determine the position of the auxiliary device clamped on the blade, thereby determining the length of the blade tip to meet the requirements of skin breaking, ultimately making skin breaking more precise. When it is necessary to adjust the angle between the present invention and the blade, the positioning mechanism 10 can also be removed. First, loosen the set screw 1003 to separate the side plate 1004 from the upper clamping plate 1 and the lower clamping plate 9 respectively. Then, separate the right end of the upper clamping plate 1 from the right end of the lower clamping plate 9, and remove the positioning mechanism 10 from between the upper clamping plate 1 and the lower clamping plate 9. At this time, the slider 12 separates from the groove 13.

[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0040] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An apparatus for assisting a blade in breaking skin, the apparatus comprising: The utility model provides a kind of clamp, including upper clamping plate (1), lower clamping plate (9) and arc spring (6); The upper clamping plate (1) is rotatably connected with the lower clamping plate (9) by a pivot; An upper through hole (5) is formed in the upper clamping plate (1), and a lower through hole (11) is formed in the lower clamping plate (9), and the upper through hole (5) and the lower through hole (11) are both located on the left side of the pivot, and the two ends of the arc spring (6) respectively penetrate the upper through hole (5) and the lower through hole (11), wherein one end of the arc spring (6) is fixedly connected to the end face of the right end of the upper clamping plate (1), and the other end of the arc spring (6) is fixedly connected to the end face of the right end of the lower clamping plate (9); The right end of the upper clamping plate (1) and the right end of the lower clamping plate (9) are both fixedly installed with an elastic chuck (7) on the end face of each other.

2. The device of claim 1, wherein, The upper clamping plate (1) and the lower clamping plate (9) are both made of hard plastic.

3. The device of claim 1, wherein, The elastic chuck (7) is made of elastic rubber.

4. The device of claim 1, wherein, The left end of the upper clamping plate (1) and the left end of the lower clamping plate (9) are both fixedly installed with a mounting screw (3) on the end face of each other away from each other, the mounting screw (3) movably sleeves an auxiliary handle (2), and a locking nut (4) is threadedly sleeved on the mounting screw (3) on the side away from the upper clamping plate (1) of the auxiliary handle (2).

5. The device of claim 1, wherein, A positioning mechanism (10) is installed between the upper clamping plate (1) and the lower clamping plate (9), and the positioning mechanism (10) is located on the right side of the pivot.

6. The device for assisting a blade in peeling according to claim 5, wherein, The positioning mechanism (10) includes a positioning block (1001), the positioning block (1001) is located between the pivot and the chuck (7), and the two ends of the positioning block (1001) are symmetrically fixedly installed with side plates (1004), and the side plates (1004) are detachably connected with the two sides of the upper clamping plate (1) and the lower clamping plate (9) by a top wire (1003).

7. A device for assisting a blade in breaking skin according to claim 6, wherein, The lower end of the positioning block (1001) is fixedly connected with a sliding block (12), the right end of the lower clamping plate (9) is provided with a sliding groove (13) on the upper end face, and the sliding block (12) and the sliding groove (13) are slidably connected.

8. The device of claim 6, wherein, A triangular positioning groove (1002) is formed in the right end of the positioning block (1001).

9. The device of claim 1, wherein, The side surface of the upper clamping plate (1) and the side surface of the lower clamping plate (9) are both provided with a scale line (8).

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