PICC catheter connector anti-pressure pad cutting device

Abstract

The utility model relates to the technical field of PICC catheter accessories, and provides a PICC catheter connector anti-pressure pad cutting device which is used for cutting an anti-pressure pad to form a trapezoidal pad and comprises an extrusion roller, a cutting roller and two first cutting blades, the cutting roller and the extrusion roller are arranged in parallel, and a cutting area is formed between the cutting roller and the extrusion roller to limit the anti-pressure pad; the two first cutting edges are both spirally arranged on the cutting roller in the circumferential direction of the cutting roller in the clockwise direction and the anticlockwise direction correspondingly, and the two first cutting edges are used for cutting the anti-pressing pad located in the cutting area. According to the anti-pressure pad cutting device, the cutting roller and the extrusion roller are arranged to press the anti-pressure pad so as to limit the anti-pressure pad, meanwhile, the pressed anti-pressure pad is cut through the two first cutting blades, and the two first cutting blades are spirally arranged clockwise and anticlockwise respectively, so that a splayed notch can be formed in the anti-pressure pad, and the anti-pressure pad can be conveniently cut. Therefore, the trapezoidal pad can be separated from the pressure-resistant pad, and the efficiency is high.

Description

Technical Field

[0001] This application relates to the field of PICC catheter accessories technology, and more particularly to a PICC catheter connector anti-pressure pad cutter. Background Technology

[0002] PICC catheter connectors are crucial components in clinical intravenous infusion therapy. Their primary function is to connect the PICC catheter to the infusion device, ensuring accurate fluid delivery. Their emergence stemmed from the need for improved safety and convenience in intravenous infusion, as traditional methods suffer from issues like unstable interfaces, which PICC connectors effectively address. Their advantages are significant: firstly, they reduce the number of needle pricks, lowering the risk of infection and ensuring patient comfort; secondly, they are easy to operate, improving the efficiency of healthcare workers, and are compatible with various infusion devices, offering strong versatility and contributing to enhanced overall quality and safety of intravenous therapy.

[0003] The existing PICC catheter connectors are basically the same in structure. They are all circular tubes with two wing-shaped handles at both ends. In actual use, the wing-shaped handles are attached to the skin with tape. Since the main body protrudes from the two wing-shaped handles, the main body can easily put a lot of pressure on the patient's skin. The two wing-shaped handles are also relatively hard, which can easily cause iatrogenic damage to the patient after prolonged use. Therefore, hydrocolloid or gauze dressings are usually used to pad between the PICC catheter connector and the skin to reduce this damage. However, the dressing is difficult to cut, and it is necessary to compare the size and shape of the PICC catheter connector while cutting, which is very inefficient. There is a lack of dressing cutters. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this application is to provide a PICC conduit connector anti-pressure pad cutter, which aims to solve the disadvantage of low efficiency in existing methods for cutting PICC conduit connector dressings.

[0005] The technical solution adopted by this application to solve the technical problem is as follows: A PICC conduit connector anti-pressure pad cutter, comprising: an extrusion roller;

[0006] A cutting roller is arranged parallel to the extrusion roller, and a cutting zone is formed between the cutting roller and the extrusion roller to limit the anti-pressure pad;

[0007] Two first cutting blades are arranged on the cutting roller in a clockwise and counterclockwise spiral pattern, respectively, along the circumference of the cutting roller. The two first cutting blades are used to cut the anti-pressure pad located in the cutting area.

[0008] Furthermore, the pitch of the two first cutting blades is not less than twice the axial length of the cutting roller, and one end of the two first cutting blades is connected to each other to form an intersection.

[0009] Furthermore, the PICC conduit connector anti-pressure pad cutter also includes: a second cutting blade, which is disposed on the cutting roller along the axial direction of the cutting roller, and one end of the second cutting blade is connected to the intersection;

[0010] The third cutting blade is arranged around the cutting roller and is connected to the end of the second cutting blade away from the intersection. Both the second cutting blade and the third cutting blade are used to cut the anti-pressure pad located in the cutting area.

[0011] Furthermore, the PICC conduit connector anti-pressure pad cutter also includes a fixed frame, on which the cutting roller and the extrusion roller are rotatably mounted respectively.

[0012] Furthermore, the PICC conduit connector anti-pressure pad cutter also includes: a sliding member, which is slidably disposed on the fixed frame in a vertical direction; a squeezing roller is rotatably disposed on the sliding member, and the squeezing roller is located directly above the cutting roller; the squeezing roller is driven downward by gravity to drive the anti-pressure pad located in the cutting area to move toward the two first cutting blades.

[0013] Furthermore, the PICC conduit connector anti-pressure pad cutter also includes a guide groove, which is disposed on the fixing frame and the opening of the guide groove faces the cutting area. The guide groove is located in the cutting area to limit the movement direction of the anti-pressure pad.

[0014] Furthermore, a hand crank is rotatably mounted on the fixed frame and fixedly connected to the cutting roller, and the hand crank is used to drive the cutting roller to rotate.

[0015] Furthermore, a base is connected to the mounting bracket and serves to support the mounting bracket.

[0016] Furthermore, the outer surfaces of both the extrusion roller and the cutting roller are covered with a silicone layer.

[0017] Compared with the prior art, this utility model sets a cutting roller and a squeezing roller to press down the anti-pressure pad to limit its position, and at the same time cuts the pressed anti-pressure pad with two first cutting blades. Since the two first cutting blades are arranged in clockwise and counterclockwise spirals respectively, a figure-eight shaped notch can be formed on the anti-pressure pad, so that a trapezoidal pad can be separated from the anti-pressure pad, which is highly efficient. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a diagram showing the usage status of the PICC conduit connector pressure relief pad (trapezoidal pad);

[0020] Figure 2 This is a schematic diagram of the overall structure of the PICC conduit connector anti-pressure pad cutter provided in this embodiment;

[0021] Figure 3 This is a diagram showing the usage status of the PICC conduit connector anti-pressure pad cutter provided in this embodiment;

[0022] Figure 4 This is a cross-sectional view of the PICC conduit connector anti-pressure pad cutter provided in this embodiment;

[0023] Figure 5 This is a schematic diagram of the anti-pressure pad forming the anti-pressure pad (trapezoidal pad) of the PICC conduit connector.

[0024] In the diagram: 100, extrusion roller; 200, cutting roller; 210, cutting area; 310, first cutting blade; 320, second cutting blade; 330, third cutting blade; 400, fixing frame; 410, sliding component; 420, guide groove; 430, hand crank; 440, base; 500, anti-pressure pad; 510, trapezoidal pad. Detailed Implementation

[0025] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0026] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element 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 on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] Furthermore, the technical features involved in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.

[0029] This utility model provides, for example Figures 1 to 5 The image shows a PICC conduit connector pressure relief pad 500 cutter for cutting the pressure relief pad 500 into a trapezoidal pad 510 (as shown). Figure 1 (As shown in the figure) This method is designed to address the inefficiency of existing methods for cutting PICC conduit connector dressings.

[0030] The PICC conduit connector anti-pressure pad 500 cutter mainly includes: a compression roller 100, a cutting roller 200, and two first cutting blades 310. The cutting roller 200 is arranged parallel to the compression roller 100, and a cutting area 210 is formed between the cutting roller 200 and the compression roller 100 to limit the anti-pressure pad 500.

[0031] In practical use, one end of the complete anti-pressure pad 500 can be inserted into the cutting area 210. The anti-pressure pad 500 contacts the extrusion roller 100 and the cutting roller 200 respectively. At this time, the cutting roller 200 is driven to rotate, which can drive the anti-pressure pad 500 to move and pass through the cutting area 210. During this period, the two first cutting blades 310 will contact the anti-pressure pad 500 respectively. Under the action of the two first cutting blades 310 and the extrusion roller 100, a cut mark matching the two first cutting blades 310 can be formed on the anti-pressure pad 500.

[0032] Both first cutting blades 310 are spirally arranged on the cutting roller 200 along the circumference of the cutting roller 200 and in clockwise and counterclockwise directions respectively. The two first cutting blades 310 are used to cut the anti-pressure pad 500 located in the cutting area 210.

[0033] Specifically, the two first cutting edges 310 respectively form two cylindrical helices (when the cylindrical helices unfold, they form an oblique line or a straight line). For example... Figure 3 As shown, when the anti-pressure pad 500 moves to the left and passes through the cutting area 210 driven by the cutting roller 200, the anti-pressure pad 500 comes into contact with the outer surface of the cutting roller 200 and the two first cutting blades 310. Therefore, the two first cutting blades 310 form two non-parallel cuts on the left and right sides of the anti-pressure pad 500 to form the two "sides" of the trapezoidal pad 510 (e.g., Figure 5 (The left and right sides of the trapezoidal pad 510). Preferably, to improve efficiency, it can be used in... Figure 3 A pressure-resistant pad 500, whose width in the front-to-back direction is no greater than the axial length of the cutting roller 200, forms a trapezoidal pad 510 after the two first cutting blades 310 form "side edges" on the left and right sides of the pressure-resistant pad 500, and then detaches from the original pressure-resistant pad 500. Figure 3 The edges in the front and back directions form the "top and bottom sides" of a trapezoid (e.g., Figure 5 (The top and bottom edges of the trapezoidal pad 510).

[0034] The existing PICC catheter connectors are basically the same in structure. They are all circular tubes with two wing-shaped handles at both ends. In actual use, the wing-shaped handles are attached to the skin with tape. Since the main body protrudes from the two wing-shaped handles, the main body can easily put a lot of pressure on the patient's skin. The two wing-shaped handles are also relatively hard, which can easily cause iatrogenic damage to the patient after prolonged use. Therefore, hydrocolloid or gauze dressings are usually used to pad between the PICC catheter connector and the skin to reduce this damage. However, the dressing is difficult to cut, and it is necessary to compare the size and shape of the PICC catheter connector while cutting, which is very inefficient. There is a lack of dressing cutters.

[0035] This invention uses a cutting roller 200 and a pressing roller 100 to press down on the anti-pressure pad 500 to limit its position. At the same time, two first cutting blades 310 cut the pressed anti-pressure pad 500. Since the two first cutting blades 310 are arranged in clockwise and counterclockwise spirals respectively, a figure-eight shaped notch can be formed on the anti-pressure pad 500, so that the trapezoidal pad 510 can be separated from the anti-pressure pad 500, which is highly efficient.

[0036] In some embodiments, such as Figure 2 and Figure 3 As shown, the pitch of the two first cutting blades 310 is not less than twice the axial length of the cutting roller 200, and one end of the two first cutting blades 310 is connected to each other to form an intersection.

[0037] Specifically, through the above configuration, each first cutting blade 310 can only rotate less than half a circumference around the cutting roller 200. Furthermore, since one end of each of the two first cutting blades 310 is connected to form an intersection, the two first cutting blades 310 only intersect at the intersection. For example... Figure 5 As shown, when the two first cutting edges 310 come into contact with the pressure-resistant pad 500, a "V"-shaped cut is formed on the pressure-resistant pad 500 to form one of the "sides" of the two trapezoidal pads 510. Since the two first cutting edges 310 only intersect at the intersection, the multiple "V"-shaped cuts formed by the two first cutting edges 310 on the pressure-resistant pad 500 will be spaced apart. The portion of the pressure-resistant pad 500 between every two adjacent "V"-shaped cuts forms a trapezoidal pad 510. In practical applications, the geometric parameters of the trapezoidal pad 510 can be adjusted by adjusting the setting of the two first cutting edges 310 to meet the usage requirements.

[0038] In some embodiments, such as Figure 2 and Figure 3 As shown, the PICC conduit connector anti-pressure pad 500 cutter further includes: a second cutting blade 320, which is disposed on the cutting roller 200 along the axial direction of the cutting roller 200, and one end of the second cutting blade 320 is connected to the cross portion;

[0039] Specifically, the second cutting blade 320 can be formed on the anti-pressure pad 500 in such a way as... Figure 5 A vertical cut. It is understandable that any of the first cutting edges 310 will create a cut on the pressure-resistant pad 500. Figure 5 The slanted cuts in the middle and vertical directions, since the edges of the pressure pad 500 are not rectangular, would affect the use of the pressure pad 500. Therefore, the second cutting edge 320 is used to form a cut on the pressure pad 500 in the shape of a vertical cut. Figure 5 The vertical cuts in the middle ensure that the edge of the pressure pad 500 remains rectangular, thus not affecting its function.

[0040] The third cutting blade 330 is arranged around the cutting roller 200, and the third cutting blade 330 is connected to the end of the second cutting blade 320 away from the intersection. Both the second cutting blade 320 and the third cutting blade 330 are used to cut the anti-pressure pad 500 located in the cutting area 210.

[0041] Specifically, the second cutting blade 320 can be formed on the anti-pressure pad 500 in such a way as... Figure 5 A horizontal cut. It is understandable that, when used in... Figure 3 When the width of the anti-pressure pad 500 in the front-to-back direction is greater than the axial length of the cutting roller 200, the cuts left by the two first cutting blades 310 on the anti-pressure pad 500 cannot completely cut the anti-pressure pad 500, resulting in the trapezoidal pad 510 not having an "upper edge" (e.g., Figure 5 (The upper part of the trapezoidal pad 510) makes it impossible to directly remove the trapezoidal pad 510 from the pressure-resistant pad 500. Instead, the third cutting blade 330 forms a groove on the pressure-resistant pad 500... Figure 5 The horizontal cuts create the "top" of the trapezoidal pad 510 on the pressure relief pad 500, allowing medical staff to directly remove the trapezoidal pad 510 from the pressure relief pad 500, thus improving efficiency.

[0042] In some embodiments, such as Figures 2 to 4 As shown, the PICC conduit connector anti-pressure pad 500 cutter also includes: a fixed frame 400, and the cutting roller 200 and the extrusion roller 100 are respectively rotatably mounted on the fixed frame 400.

[0043] In some embodiments, such as Figure 4 As shown, the PICC conduit connector anti-pressure pad 500 cutter further includes: a slider 410, which is slidably disposed on the fixed frame 400 in a vertical direction; a squeeze roller 100 is rotatably disposed on the slider 410, and the squeeze roller 100 is located directly above the cutting roller 200; the squeeze roller 100 is driven downward by gravity to drive the anti-pressure pad 500 located in the cutting area 210 to move toward the two first cutting blades 310.

[0044] In practical use, one end of the complete anti-pressure pad 500 can be inserted into the cutting area 210. The anti-pressure pad 500 contacts the extrusion roller 100 and the cutting roller 200 respectively. As the extrusion roller 100 moves downward due to gravity, it will drive the anti-pressure pad 500 located in the cutting area 210 to move towards the cutting roller 200, thereby increasing the pressure applied to the anti-pressure pad 500 by the two first cutting blades 310, the second cutting blade 320 and the third cutting blade 330, making it easier to form corresponding cuts on the anti-pressure pad 500.

[0045] In some embodiments, such as Figures 2 to 4As shown, the PICC conduit connector anti-pressure pad 500 cutter also includes: a guide channel 420, which is disposed on the fixing frame 400 and the opening of the guide channel 420 faces the cutting area 210. The guide channel 420 is located in the cutting area 210 to limit the movement direction of the anti-pressure pad 500.

[0046] In actual use, the edge of the anti-pressure pad 500 facing the guide groove 420 can be inserted into the guide groove 420. Guided by the guide groove 420, the anti-pressure pad 500 can move along a preset path, making the cuts formed on the anti-pressure pad 500 more regular.

[0047] In some embodiments, such as Figures 2 to 4 As shown, a hand crank 430 is rotatably mounted on a fixed frame 400 and fixedly connected to the cutting roller 200. The hand crank 430 is used to drive the cutting roller 200 to rotate.

[0048] In some embodiments, such as Figures 2 to 4 As shown, the base 440 is connected to the bracket 400 and is used to support the bracket 400.

[0049] In some embodiments, the outer surfaces of both the extrusion roller 100 and the cutting roller 200 are covered with a silicone layer.

[0050] Specifically, the silicone layer can be indented under pressure, which increases the contact area between the anti-pressure pad 500 and the extrusion roller 100 and the cutting roller 200, respectively, thereby improving friction, preventing the anti-pressure pad 500 from "slipping", and better driving the movement of the anti-pressure pad 500.

[0051] In summary, a PICC conduit connector anti-pressure pad cutter is provided for cutting anti-pressure pads into trapezoidal pads. It includes a compression roller, a cutting roller, and two first cutting blades. The cutting roller is arranged parallel to the compression roller, forming a cutting zone between them to limit the anti-pressure pad. The two first cutting blades are spirally arranged along the circumference of the cutting roller, clockwise and counterclockwise respectively, and are used to cut the anti-pressure pad located within the cutting zone. This invention uses the cutting roller and compression roller to press and limit the anti-pressure pad, while simultaneously cutting the pressed pad with the two first cutting blades. Because the two first cutting blades are spirally arranged clockwise and counterclockwise respectively, a figure-eight shaped notch can be formed on the anti-pressure pad, thus separating the trapezoidal pad from the anti-pressure pad, resulting in high efficiency.

[0052] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A PICC conduit connector anti-pressure pad cutter, used to cut anti-pressure pads into trapezoidal pads, characterized in that, The PICC conduit connector anti-pressure pad cutter includes: an extrusion roller; A cutting roller is arranged parallel to the extrusion roller, and a cutting zone is formed between the cutting roller and the extrusion roller to limit the anti-pressure pad; Two first cutting blades are arranged on the cutting roller in a clockwise and counterclockwise spiral pattern, respectively, along the circumference of the cutting roller. The two first cutting blades are used to cut the anti-pressure pad located in the cutting area.

2. The PICC conduit connector anti-pressure pad cutter according to claim 1, characterized in that, The pitch of the two first cutting blades is not less than twice the axial length of the cutting roller, and one end of the two first cutting blades is connected to each other to form an intersection.

3. The PICC conduit connector anti-pressure pad cutter according to claim 2, characterized in that, The PICC conduit connector anti-pressure pad cutter further includes: a second cutting blade, which is disposed on the cutting roller along the axial direction of the cutting roller, and one end of the second cutting blade is connected to the intersection. The third cutting blade is arranged around the cutting roller and is connected to the end of the second cutting blade away from the intersection. Both the second cutting blade and the third cutting blade are used to cut the anti-pressure pad located in the cutting area.

4. The PICC conduit connector anti-pressure pad cutter according to claim 1, characterized in that, The PICC conduit connector anti-pressure pad cutter further includes a fixed frame, on which the cutting roller and the extrusion roller are rotatably mounted.

5. The PICC conduit connector anti-pressure pad cutter according to claim 4, characterized in that, The PICC conduit connector anti-pressure pad cutter further includes: a sliding member, which is slidably disposed on the fixed frame in a vertical direction; a squeezing roller is rotatably disposed on the sliding member and is located directly above the cutting roller; the squeezing roller is driven downward by gravity to drive the anti-pressure pad located in the cutting area to move toward the two first cutting blades.

6. The PICC conduit connector anti-pressure pad cutter according to claim 4, characterized in that, The PICC conduit connector anti-pressure pad cutter further includes a guide groove, which is disposed on the fixing frame and the opening of the guide groove faces the cutting area. The guide groove is located in the cutting area to limit the movement direction of the anti-pressure pad.

7. The PICC conduit connector anti-pressure pad cutter according to claim 4, characterized in that, A hand crank is rotatably mounted on the fixed frame and fixedly connected to the cutting roller. The hand crank is used to drive the cutting roller to rotate.

8. The PICC conduit connector anti-pressure pad cutter according to claim 4, characterized in that, A base, which is connected to and supports the mounting frame.

9. The PICC conduit connector anti-pressure pad cutter according to claim 1, characterized in that, The outer surfaces of both the extrusion roller and the cutting roller are covered with a silicone layer.

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