A catheter trimmer

Abstract

This utility model provides a catheter cutter, comprising a base with an integrally extended cantilever. The cantilever has a connecting section and a pressing section, the pressing section being connected to the base via the connecting section. The connecting section is elastic, allowing the pressing section to move relative to the base. A cutting blade is provided on the pressing section. The base has a tube insertion seat with at least one tube insertion hole for catheter insertion. The tube insertion seat has a radially penetrating cutting slit, and the cutting blade is aligned with the cutting slit and can move to insert into the cutting slit. Compared to traditional spring-return cutters, this catheter cutter has a simpler structure and is easier to manufacture. The structural characteristics of the cantilever itself can guide the movement of the pressing section. Simultaneously, the cutting slit limits the movement of the cutting blade, effectively improving the stability of the cutting blade's movement. This prevents the cutting blade from shaking or misaligning during the cutting process, making the cutting operation more convenient, reliable, and practical.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a catheter cutter. Background Technology

[0002] Surgical catheters, drainage tubes, and other medical catheters often need to be cut during use. Since most medical catheters are inserted into the patient's body, in order to reduce damage to body tissues and facilitate insertion and removal, the outer wall of the catheter is usually made to have low frictional resistance through specific processing technology or coating. In this way, the catheter can easily slide along the blade of the scissors during operation, making it very difficult to cut. Cutting with a scalpel requires a supporting surface for cooperation, which is also very inconvenient. In many cases during surgery, the operating space is also small, making it difficult to operate with scissors and scalpels.

[0003] Therefore, special catheter cutters are commonly used for catheter cutting. Existing catheter cutters typically include a blade and a base. The blade is slidably set in the base. The catheter inserted into the base is cut by pressing the blade, and springs at both ends of the blade are used to reset the blade. This type of catheter cutter effectively facilitates the catheter cutting operation, but the structure is relatively complex and the manufacturing cost is high. The blade is also prone to uneven force when pressed, which can cause tilting and shaking, affecting the cutting operation. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a simple, reliable, easy-to-manufacture and easy-to-use catheter cutter.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A catheter cutter includes a base, on which an integrally extended cantilever has a connecting section and a pressing section, the pressing section being connected to the base via the connecting section, the connecting section being elastic to allow the pressing section to move relative to the base, and a cutting blade being provided on the pressing section.

[0007] The substrate has a tube holder, and the tube holder has at least one tube hole for the insertion of a conduit. The tube holder has a cutting slit that radially penetrates the tube hole. The cutting blade is aligned with the cutting slit and can be moved to be inserted into the cutting slit.

[0008] Preferably, the pressing section is active by moving along the length of the cutting blade.

[0009] Preferably, the pressing section has a pressing part for manual pressing, the pressing part being located above the base; the left end of the pressing section is connected to the connecting section, the cutting blade is located on the right side of the pressing section, and the through hole is located on the right side of the base.

[0010] Preferably, the first end of the connecting segment is connected to the lower part or bottom of the base, and the tail end of the connecting segment wraps around from the left side of the base to the top of the base and is connected to the left end of the pressing segment, and there is a distance between the connecting segment and the left side wall of the base.

[0011] Preferably, the connecting segment is arc-shaped.

[0012] Preferably, the pressing part is inclined upwards from left to right.

[0013] Preferably, a guide structure for guiding the movement of the pressing segment is provided between the substrate and the pressing segment; the guide path of the guide structure is arc-shaped.

[0014] Preferably, the substrate has a transparent observation section corresponding to the perforation hole; the number of perforation holes is multiple and they have various diameters.

[0015] Preferably, the base includes a base and an end cap fastened to the base, the tube seat includes two sub-seats respectively disposed on the base and the end cap, the cutting seam is the gap between the two sub-seats; the cantilever is integrally disposed on the base.

[0016] Preferably, the pressing section has a mounting base extending into the base body, the mounting base having a protruding insertion platform, the cutting blade being a blade having an insertion hole adapted to the insertion platform, the insertion platform being inserted into the insertion hole, and the end face of the insertion platform being close to the side of the end cap facing the base.

[0017] The beneficial effects of this utility model are as follows: This conduit cutter has an integrally extended cantilever on the base. A cutting blade is set on the pressing section of the cantilever. In use, simply insert the conduit into the conduit hole of the conduit holder, and then press the pressing section of the cantilever to allow the cutting blade to move into the cutting slit of the conduit holder, thus cutting the conduit in the conduit hole. Afterwards, the elastic connecting section of the cantilever allows the pressing section to return to its original position. Compared with the traditional spring return method, the structure is simpler and easier to manufacture. The structural characteristics of the cantilever itself can also guide the movement of the pressing section. At the same time, in conjunction with the cutting slit limiting the cutting blade, it can effectively improve the stability of the cutting blade's movement, making it less prone to shaking and misalignment during the cutting process. This effectively facilitates the cutting operation and is more reliable and practical. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a structural diagram of a preferred embodiment of the present invention;

[0020] Figure 2 This is a structural diagram of the preferred embodiment of the present invention with the end cap opened;

[0021] Figure 3 This is an exploded view of a preferred embodiment of the present invention;

[0022] Figure 4 This is a diagram showing the internal structure of the preferred embodiment of the present invention after the pressing section is pressed down.

[0023] The following are the labeling elements in the figure:

[0024] 10. Base; 11. Sub-base; 12. Through-hole; 13. Guide groove; 14. Base; 15. End cap; 20. Cantilever; 21. Connecting section; 22. Pressing section; 221. Pressing part; 222. Guide post; 223. Mounting base; 224. Plug-in platform; 23. Cutting blade; 231. Plug-in hole. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Reference Figures 1 to 4 In a preferred embodiment of the present invention, a catheter cutter includes a base 10, on which an integral cantilever 20 extends. The cantilever 20 has a connecting section 21 and a pressing section 22. The pressing section 22 is connected to the base 10 through the connecting section 21. The connecting section 21 is elastic, allowing the pressing section 22 to move relative to the base 10. A cutting blade 23 is provided on the pressing section 22. The base 10 has a tube insertion seat, in which at least one tube insertion hole 12 for catheter insertion is provided. A cutting slit is provided on the tube insertion seat that radially penetrates the tube insertion hole 12. The cutting blade 23 is aligned with the cutting slit and can move to be inserted into the cutting slit. This conduit cutter features an integrally extended cantilever 20 extending from the base 10. A cutting blade 23 is mounted on the pressing section 22 of the cantilever 20. In use, the conduit is simply inserted into the conduit hole of the tube insertion seat. Then, pressing the pressing section 22 of the cantilever 20 causes the cutting blade 23 to move into the cutting slit of the tube insertion seat, cutting the conduit inside the hole. The elastic connecting section 21 of the cantilever 20 allows the pressing section 22 to automatically reset. Compared to traditional spring reset, this structure is simpler and easier to manufacture. The structural characteristics of the cantilever 20 itself also guide the movement of the pressing section 22. Combined with the limiting effect of the cutting slit on the cutting blade 23, this effectively improves the stability of the cutting blade 23's movement, preventing it from shaking or misaligning during the cutting process. This significantly facilitates the cutting operation and makes it more reliable and practical.

[0030] As a preferred embodiment of this utility model, it may also have the following additional technical features:

[0031] The cantilever 20 can be integrally formed on the base 10 during the manufacturing process of the base 10 using a one-piece manufacturing method such as injection molding.

[0032] In this embodiment, the pressing section 22 moves along the length of the cutting blade 23, thereby enabling the cutting blade 23 to perform a slicing cut on the guide tube during the cutting process, which improves the smoothness of the cut and ensures the cutting effect. In other embodiments, the pressing section 22 may move only in one direction, allowing the cutting blade 23 to cut the guide tube by squeezing it with its blade.

[0033] In this embodiment, the pressing section 22 has a pressing part 221 for pressing by hand, and the pressing part 221 is located above the base 10; the left end of the pressing section 22 is connected to the connecting section 21, the cutting blade 23 is located on the right side of the pressing section 22, and the tube hole 12 is located on the right side of the base 10. This allows the pressing section 22 to swing at a large amplitude, thereby generating a large movement amplitude along the length of the cutting blade 23, which can improve the effect of slicing and cutting the guide tube, and allow the force applied by the user to be more fully transmitted to the cutting blade 23 and the guide tube, thereby improving the cutting effect.

[0034] In this embodiment, the first end of the connecting segment 21 is connected to the bottom of the base 10, and the last end of the connecting segment 21 extends from the left side of the base 10 to the top of the base 10 and connects to the left end of the pressing segment 22. A distance is maintained between the connecting segment 21 and the left side wall of the base 10, thereby increasing the length of the connecting segment 21. This helps to improve the elasticity of the connecting segment 21 and the range of motion of the pressing segment 22, which in turn helps to increase the cutting range of the cutting blade 23, effectively improving the cutting effect. Alternatively, the first end of the connecting segment 21 can be connected to the lower part of the base 10, which also improves the cutting effect. Of course, in other embodiments, the first end of the connecting segment 21 can also be connected to the upper part of the base 10 or other suitable locations.

[0035] In this embodiment, the connecting segment 21 is arc-shaped, which makes the force on the connecting segment 21 more uniform and can provide a good and stable elastic deformation effect. In other embodiments, the connecting segment 21 may also adopt other arbitrary shapes such as a polygonal shape, and is not limited to this.

[0036] In this embodiment, the pressing part 221 is tilted upwards from left to right, which provides a larger pressing range and also helps to improve the cutting effect. In other embodiments, the pressing part 221 can also be arranged in other suitable ways, such as at a horizontal angle.

[0037] In this embodiment, a guide structure is provided between the base 10 and the pressing section 22 to guide the movement of the pressing section 22; this guide structure guides the movement of the pressing section 22, ensuring a good cutting effect. In this embodiment, the guide path of the guide structure is arc-shaped, ensuring that the cutting blade 23 can form a stable slicing cutting effect. In other embodiments, the guide path of the guide structure can also be a straight line. In this embodiment, the guide structure includes an arc-shaped guide groove 13 provided on the base 10, and a guide post 222 provided on the pressing section 22 and inserted into the guide groove 13. The guide post 222 can slide along the guide groove 13, thereby guiding the pressing section 22. In other embodiments, other suitable structures can also be selected for the guide structure, such as guide strips that slide against each other on the base 10 and the pressing section 22, respectively, as the guide structure.

[0038] In this embodiment, the substrate 10 has a transparent observation section corresponding to the perforation port 12, facilitating medical personnel to view the catheter cutting status. In this embodiment, the substrate 10 is entirely made of transparent material, facilitating manufacturing. In other embodiments, a portion of the substrate 10 can also be made transparent. In this embodiment, the perforation port 12 is multiple and has various diameters, making it suitable for catheters of different specifications and more flexible and convenient to use. In other embodiments, the number of perforation ports 12 can be only one. When using multiple perforation ports 12, each perforation port 12 can also be selected to have the same diameter. Those skilled in the art can flexibly choose according to their needs.

[0039] In this embodiment, the base 10 includes a base 14 and an end cap 15 fastened to the base 14. The tube holder includes two separate seats 11 respectively disposed on the base 14 and the end cap 15, and the cutting seam is the gap between the two separate seats 11. The cantilever 20 is integrally disposed on the base 14, which has a simple structure, is convenient for processing, manufacturing and assembly, and can avoid the cutting blade 23 from being exposed, thus making it safer. In other embodiments, the base 10 may also adopt other suitable shapes and structures, and is not limited to this.

[0040] In this embodiment, the pressing section 22 has a mounting base 223 extending into the base 10. A connector 224 protrudes from the mounting base 223. The cutting blade 23 is a blade with a connector hole 231 that matches the connector 224. The connector 224 is inserted into the connector hole 231, with its end face close to the side of the end cap 15 facing the base 14. This ensures the sharpness of the cutting blade 23 and limits its movement, effectively reducing its wobbling and ensuring smooth cutting. In other embodiments, a portion of the pressing section 22 can also be used directly as the cutting blade 23.

[0041] In this utility model, the directions such as up, down, left, and right are based on the directions in the accompanying drawings and are only for the convenience of description and understanding. They should not be construed as limitations on this utility model. In practical applications, this catheter cutter can be used in any direction and angle as needed.

[0042] Without causing conflict, those skilled in the art can freely combine and use the above-mentioned additional technical features.

[0043] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.

Claims

1. A catheter trimmer, comprising: Includes a base (10), on which an integral cantilever (20) extends, the cantilever (20) having a connecting section (21) and a pressing section (22), the pressing section (22) being connected to the base (10) through the connecting section (21), the connecting section (21) being elastic so that the pressing section (22) can move relative to the base (10), and a cutting blade (23) being provided on the pressing section; The substrate (10) has a tube seat, and the tube seat is provided with at least one tube hole (12) for the tube to be inserted. The tube seat is provided with a cutting slit that penetrates the tube hole (12) radially. The cutting blade (23) is aligned with the cutting slit and can be moved to be inserted into the cutting slit.

2. A catheter trimmer according to claim 1, wherein, The pressing section (22) can move along the length of the cutting blade (23).

3. The catheter trimmer of claim 1, wherein, The pressing section (22) has a pressing part (221) for pressing by hand, the pressing part (221) being located above the base (10); the left end of the pressing section (22) is connected to the connecting section (21), the cutting blade (23) is located on the right side of the pressing section (22), and the through hole (12) is located on the right side of the base (10).

4. A catheter trimmer according to claim 3, wherein, The first end of the connecting segment (21) is connected to the lower part or bottom of the base (10), and the tail end of the connecting segment (21) is connected to the left end of the pressing segment (22) after going around from the left side of the base (10) to the top of the base (10). The connecting segment (21) is spaced apart from the left side wall of the base (10).

5. A catheter trimmer according to claim 4, wherein, The connecting segment (21) is arc-shaped.

6. The catheter trimmer of claim 3, wherein, The pressing part (221) is inclined upward from left to right.

7. The catheter trimmer of claim 1, wherein, A guide structure for guiding the movement of the pressing section (22) is provided between the base (10) and the pressing section (22); the guide path of the guide structure is arc-shaped.

8. The catheter trimmer of claim 1, wherein, The substrate (10) has a transparent observation section corresponding to the through hole (12); the number of through holes (12) is multiple and they have various diameters.

9. The catheter trimmer of claim 1, wherein, The base (10) includes a base (14) and an end cap (15) fastened to the base (14). The tube seat includes two sub-seats (11) respectively disposed on the base (14) and the end cap (15). The cutting seam is the gap between the two sub-seats (11). The cantilever (20) is integrally disposed on the base (14).

10. The catheter trimmer of claim 9, wherein, The pressing section (22) has a mounting base (223) extending into the base (10), and the mounting base (223) is provided with a protruding insertion platform (224). The cutting blade (23) is a blade, and the blade is provided with an insertion hole (231) adapted to the insertion platform (224). The insertion platform (224) is inserted into the insertion hole (231), and the end face of the insertion platform (224) is close to the side of the end cap (15) facing the base (14).

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