Safety medical tape cutter

Abstract

This invention discloses a safe medical tape cutter, providing a highly safe medical tape cutter that prevents tape contamination. The tape cutter includes a housing, an adhesive plate, a cutting strip, a cover plate, a spring, and a cutting strip moving structure. The cover plate covers the housing with its front end positioned in front of the adhesive plate. The cover plate can move back and forth and has a driving protrusion. The front surface of the driving protrusion is a driving slope that is lower at the front and higher at the rear, and the lower surface of the driving protrusion is a positioning surface. The spring supports the cover plate forward. The cutting strip moving structure includes a cutting strip pad, a rotating shaft, and two levers. The rear end of the cutting strip pad is hinged to the housing, and the front part of the cutting strip pad has an elongated hole, which is fitted with the rotating shaft. The cutting strip can move up and down, and its lower end is connected to the rotating shaft. The two levers are connected to both ends of the cutting strip pad, with the top ends of the levers abutting against the positioning surface. When the cover plate moves backward, the cutting strip moving structure rotates, and the cutting strip moves downward.

Description

Technical Field

[0001] This invention relates to the field of medical tape cutting technology, and more particularly to a safe medical tape cutter. Background Technology

[0002] Medical tape is widely used in clinical practice. Some gauze, many puncture needles, and tubes inserted into the human body all need to be fixed with tape, so the amount of tape used is very large.

[0003] The applicant is currently using Figure 1 and Figure 2 The tape cutter shown is used for cutting tape. It includes a housing, a tape spool, an adhesive plate, and a cutting strip. The tape spool is detachably connected to the housing. The adhesive plate is located in front of the tape spool and connected to the housing. The cutting strip is located in front of the adhesive plate and connected to the housing. Tape rolls are loaded onto the tape spool; multiple rolls can be loaded onto the spool due to the large volume of tape used. The tape is pulled out and adhered to the adhesive plate. To retrieve the tape, a finger is placed between the adhesive plate and the tape roll, the tape adhered to the adhesive plate is pulled up, and then pulled out; then the hand is turned downwards, the tape adheres to the adhesive plate, and the cutting strip cuts the tape. The entire tape retrieval process is simple and can be operated with one hand.

[0004] The above-mentioned tape cutter has the following disadvantages: 1. The cutting bar is relatively sharp, otherwise it would be difficult to cut the tape smoothly; the cutting edge of the cutting bar is completely exposed, and medical staff are likely to touch it and get injured; 2. There is no cover plate, so the casing cannot be covered, and the tape is easily contaminated; however, if a cover plate is installed, the cover plate will cover the tape and it will be impossible to take the tape out; if the cover plate is opened to take out the tape, an additional step of opening the cover plate is added before the tape is pulled out, and an additional step of closing the cover plate is added after the tape is cut, which is quite cumbersome.

[0005] ZL201921957235.4 discloses a tape cutter, which includes multiple safety blocks and multiple spacers. Each spacer is spaced along the length of the tape shaft and connected to a housing. The spacers are positioned close to the tape shaft so that portions of the tape shaft corresponding to the spacer's position cannot be fitted with tape. Each safety block corresponds to one spacer and covers the cutting strip. The safety blocks covering the cutting strip not only block part of the cutting strip but also place the unblocked portion in a recessed area, making it less likely to be bumped, thus reducing the possibility of human contact with the cutting strip and improving the safety of the tape cutter. However, because the safety blocks and spacers occupy space, this tape cutter can accommodate fewer tape rolls, increasing the frequency of tape roll installation, and it does not solve the problem of preventing tape contamination. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a safe medical tape cutter that is highly secure and can prevent tape contamination.

[0007] The technical solution adopted to solve the above problems is as follows: A safety medical tape cutter includes a housing, a tape shaft, an adhesive plate, and a cutting strip arranged in the same direction. The tape shaft is detachably connected to the housing, and the adhesive plate is located in front of the tape shaft and connected to the housing. It also includes a cover plate, a spring, and a cutting strip moving structure. The top of the housing has guide grooves arranged in a front-rear direction at both ends. The cover plate covers the housing with its front end located in front of the adhesive plate. Both ends of the cover plate are fitted with the guide grooves. The cover plate has a driving protrusion; the front surface of the driving protrusion is a driving slope that is lower at the front and higher at the back, and the lower surface of the driving protrusion is a positioning surface. The spring supports the cover forward. The cutting strip moving structure is arranged in the same direction as the tape shaft. The cutting strip moving structure includes a cutting strip pad, a rotating shaft, and two levers. The rear end of the cutting strip pad is hinged to the housing, and the front part of the cutting strip pad has an elongated hole. The rotating shaft is configured to cooperate with the elongated hole. The adhesive plate has a cutting strip groove, and the cutting strip is configured to cooperate with the cutting strip groove. The upper end of the cutting strip protrudes from the adhesive plate, and the lower end of the cutting strip is connected to the rotating shaft. The two levers are connected to both ends of the cutting strip pad. The top of the levers abuts against the positioning surface and is close to the driving inclined surface. When the cover plate moves backward, the levers leave the positioning surface, the cutting strip moving structure rotates, and the cutting strip moves down until the upper end is below the surface of the adhesive plate.

[0008] Furthermore, the safety medical tape cutter includes a lower limit plate located below the cutting strip pad; the cutting strip pad rests against the lower limit plate when it rotates downwards.

[0009] Furthermore, the safety medical tape cutter includes a mounting hole cover with a tape roll through hole on the cover plate, and the mounting hole cover covers the tape roll through hole.

[0010] Furthermore, the cutting strip moving structure includes an upper crossbeam that connects two levers and rests against a positioning surface.

[0011] Furthermore, the safety medical tape cutter includes a flexible pad that is attached to the front end of the cover plate.

[0012] Furthermore, the housing is provided with a front limit body and a rear limit body, the front limit body limiting the maximum forward movement of the cover plate, and the rear limit body limiting the maximum backward movement of the cover plate.

[0013] The beneficial effects of the present invention are: 1. The present invention is provided with a cover plate, which covers the tape roll installed on the tape shaft and the pulled tape, thereby preventing tape contamination.

[0014] 2. The specific parameters of this invention should be designed reasonably, such as... Figure 6As shown, push the front end of the cover plate with the back of your finger to move it slightly backward. When the front end of the cover plate is still in front of the adhesive plate, the lever leaves the positioning surface. Because the lever loses the support of the positioning surface, the cutting strip moving structure rotates, and the cutting strip moves down to its upper end below the surface of the adhesive plate. During this process, since the front end of the cover plate remains in front of the adhesive plate, there is no risk of injury from the cutting strip. Figure 7 As shown, continue pushing the cover plate backward, revealing the tape. The tape can then be picked up with the fingers that pushed the cover plate. During this process, since the upper end of the cutting strip remains below the surface of the adhesive board, there is no risk of injury from the cutting strip. Then, as... Figure 8 As shown, pulling out the tape causes the cover plate to reset, and the driving ramp drives the lever, causing the cutting strip moving structure to rotate. The lever then rests against the positioning surface again, exposing the cutting strip on the adhesive plate. During this process, since the driving ramp only drives the lever when the front end of the cover plate is in front of the adhesive plate, there is no risk of injury from the cutting strip. Afterward, holding the tape and moving it downwards allows the cutting strip to cut the tape, and the remaining tape adheres to the adhesive plate for easy reuse. It is evident that this invention eliminates the risk of injury from the cutting strip during tape handling; it can be operated with one hand, and the operation is not significantly more cumbersome than existing technologies.

[0015] 3. Compared with the tape cutter disclosed in ZL201921957235.4, the present invention can install more tape and reduce the frequency of adding tape. Attached Figure Description

[0016] Figure 1 This is a structural diagram of an existing tape cutter;

[0017] Figure 2 yes Figure 1 AA section view;

[0018] Figure 3 This is a front view of the safety medical tape cutter of the present invention;

[0019] Figure 4 yes Figure 3 BB section view;

[0020] Figure 5 yes Figure 3 CC section view;

[0021] Figure 6 This is a top view of a safety medical tape cutter;

[0022] Figure 7 yes Figure 4 Enlarged view of point D;

[0023] Figure 8 This is a diagram illustrating step one of the tape application process;

[0024] Figure 9 This is a diagram illustrating step two of taking the tape;

[0025] Figure 10 This is a diagram illustrating step three of the tape application process;

[0026] The components in the diagram are labeled as follows: housing 1, guide groove 1-1, front limit body 1-2, tape roll limiting structure 1-3, rear limit body 1-4, tape shaft 2, adhesive plate 3, cutting strip groove 3-1, cutting strip 4, cutting strip moving structure 5, cutting strip pad 5-1, elongated hole 5-1-1, rotating shaft 5-2, lever 5-3, upper crossbeam 5-4, cover plate 6, drive protrusion 6-1, drive inclined surface 6-1-1, positioning surface 6-1-2, tape roll through hole 6-2, spring 7, lower limit plate 8, flexible pad 9, mounting hole cover 10, tape roll 11, tape 11-1. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] like Figures 3 to 7 As shown: The safety medical tape cutter includes a housing 1 and a tape shaft 2, an adhesive plate 3, and a cutting strip 4 arranged in the same direction. The tape shaft 2 is detachably connected to the housing 1, and the adhesive plate 3 is located in front of the tape shaft 2 and connected to the housing 1. It also includes a cover plate 6, a spring 7, and a cutting strip moving structure 5. The top of the housing 1 has guide grooves 1-1 arranged in the front-rear direction at both ends. The cover plate 6 covers the housing 1 and its front end is located in front of the adhesive plate 3. The two ends of the cover plate 6 are configured to cooperate with the guide grooves 1-1. The cover plate 6 is provided with a driving protrusion 6-1. The front surface of the driving protrusion 6-1 is a driving slope 6-1-1 with a lower front and a higher rear, and the lower surface of the driving protrusion 6-1 is a positioning surface 6-1-2. The spring 7 supports the cover plate 6 forward. The cutting strip moving structure 5 is arranged in the same direction as the tape shaft 2, and the cutting strip... The moving structure 5 includes a cutting strip pad 5-1, a rotating shaft 5-2, and two levers 5-3. The rear end of the cutting strip pad 5-1 is hinged to the housing 1. The front part of the cutting strip pad 5-1 has an elongated hole 5-1-1. The rotating shaft 5-2 is configured to cooperate with the elongated hole 5-1-1. The adhesive plate 3 has a cutting strip groove 3-1. The cutting strip 4 is configured to cooperate with the cutting strip groove 3-1. The upper end of the cutting strip 4 protrudes from the adhesive plate 3, and the lower end of the cutting strip 4 is connected to the rotating shaft 5-2. The two levers 5-3 are connected to both ends of the cutting strip pad 5-1. The top of the levers 5-3 abuts against the positioning surface 6-1-2 and is close to the driving inclined surface 6-1-1. When the cover plate 6 moves backward, the levers 5-3 leave the positioning surface 6-1-2, the cutting strip moving structure 5 rotates, and the cutting strip 4 moves down until its upper end is below the surface of the adhesive plate 3.

[0029] When using this invention, it is the same as the existing tape cutter. The tape roll 11 needs to be loaded onto the tape shaft 2, then the tape 11-1 is pulled out and pasted onto the adhesive plate 3.

[0030] The steps for taking tape 10-1 are as follows: 1. As Figure 6 As shown, push the front end of cover plate 6 with the back of your finger to move cover plate 6 slightly backward. When the front end of cover plate 6 is still in front of adhesive plate 3, lever 5-3 leaves positioning surface 6-1-2. Since lever 5-3 loses the support of positioning surface 6-1-2, cutting strip moving structure 5 rotates, and cutting strip 4 moves down to its upper end below the surface of adhesive plate 3. During this process, since the front end of cover plate 6 is always in front of adhesive plate 3, there is no risk of injury from cutting strip 4. II. As Figure 7 As shown, continue pushing the cover plate 6 backward, revealing the tape 11-1. The tape 11-1 can then be picked up by the fingers pushing the cover plate 6. During this process, since the upper end of the cutting strip 4 remains below the surface of the adhesive board 3, there is no risk of injury from the cutting strip 4. III. As Figure 8 As shown, when tape 11-1 is pulled out, cover plate 6 returns to its original position. Driving ramp 6-1-1 drives lever 5-3, causing the cutting strip moving structure 5 to rotate. Lever 5-3 then rests against positioning surface 6-1-2, exposing cutting strip 4 on adhesive plate 3. During this process, since the front end of cover plate 6 is in front of adhesive plate 3, driving ramp 6-1-1 only drives lever 5-3, eliminating the risk of injury from cutting strip 4. Fourth, holding tape 11-1 and moving it downwards allows cutting strip 4 to cut tape 11-1, with the remaining tape 11-1 adhered to adhesive plate 3 for easy reuse. It is evident that this invention eliminates the risk of injury from cutting strip 4 during tape 11-1 retrieval; it can be operated with one hand, and the operation is not significantly more cumbersome than existing technologies.

[0031] The cover plate 6 of this invention serves to cover the tape roll 11 and tape 11-1 inside the safety medical tape cutter to prevent contamination, and also serves to drive the cutting strip moving structure 5 to move the cutting strip 4 up and down.

[0032] The cutting strip pad 5-1 at the front of the cutting strip moving structure 5 should be heavier, while the lever 5-3 and the upper crossbeam 5-4 (described later) should be lighter. In step one of the tape 11-1 removal process, when the lever 5-3 loses the support of the positioning surface 6-1-2, the cutting strip moving structure 5 rotates due to its own weight and the weight of the cutting strip 4. In step four of the tape 11-1 removal process, the force required to cut the tape 11-1 is small, and this force will not adversely affect the cutting strip moving structure 5 and the cover plate 6.

[0033] The position and shape of the driving protrusion 6-1, as well as the distance between the front end of the cover plate 6 and the adhesive plate 3, should be reasonably designed to ensure that in the first step of taking the tape 11-1, when the cover plate 6 moves slightly backward and the front end of the cover plate 6 is still in front of the adhesive plate 3, the lever 5-3 leaves the positioning surface 6-1-2. The lever 5-3 is close to the driving inclined surface 6-1-1, which facilitates the lever 5-3 leaving the positioning surface 6-1-2 as quickly as possible. In the third step of taking the tape 11-1, when the cover plate 6 is reset, because the driving inclined surface 6-1-1 is lower in the front and higher in the back, the forward movement of the driving inclined surface 6-1-1 can drive the lever 5-3, causing the driving cutting strip moving structure 5 to rotate.

[0034] The specific setting method for spring 7 can be as follows: Figure 5 As shown. Since the weight of the cutting strip pad 5-1 and the cutting strip 4 is not large, the spring 7 does not need to provide a large elastic force, so it is easy to push the cover plate 6.

[0035] After the cutting strip moving structure 5 rotates, the lever 5-3 can rest against the cover plate 6. Alternatively, the safety medical tape cutter can include a lower limit plate 8, which is located below the cutting strip pad 5-1; when the cutting strip pad 5-1 rotates downward, it rests against the lower limit plate 8.

[0036] When installing the tape roll 11, the cover plate 6 can be moved back to insert the tape roll 11, but this is inconvenient. To facilitate the installation of the tape roll 11, the safety medical tape cutter includes a mounting hole cover 10. The cover plate 6 has a tape roll passage hole 6-2, and the mounting hole cover 10 covers the tape roll passage hole 6-2. By opening the mounting hole cover 10, the tape roll 11 can enter the housing 1 through the tape roll passage hole 6-2, thus facilitating the installation of the tape roll 11. Similar to existing tape cutters, when installing the tape roll 11, the tape shaft 2 is retracted, the tape roll 11 is then placed on the tape shaft 2, and then the tape shaft 2 is reinstalled.

[0037] Due to unavoidable manufacturing errors, it is easy for only one lever 5-3 to abut against the positioning surface 6-1-2. This results in the lever 5-3 bearing a large force while the other lever 5-3 bears no force. To improve the force distribution and enhance the reliability of the invention, the cutting strip moving structure 5 includes an upper crossbeam 5-4, which connects the two levers 5-3. Both the upper crossbeam 5-4 and the levers 5-3 abut against the positioning surface 6-1-2.

[0038] To improve the feel when pushing the cover plate 6 by hand, the safety medical tape cutter includes a flexible pad 9, which is attached to the front end of the cover plate 6.

[0039] Obviously, the present invention should limit the forward movement of the cover plate 6. To prevent the cover plate 6 from moving out of the guide groove 1-1, a front limiting body 1-2 is provided on the housing 1, which limits the extreme position of the forward movement of the cover plate 6. Similarly, in order to improve the feel when pushing the cover plate 6 by hand, the front end area of ​​the cover plate 6 should be appropriately larger. If the cover plate 6 moves too far backward, it will cause the front end of the cover plate 6 to interfere with the lever 5-3. Therefore, a rear limiting body 1-4 is provided on the housing 1, which limits the extreme position of the backward movement of the cover plate 6 to avoid interference between the front end of the cover plate 6 and the lever 5-3.

[0040] The space between the two levers 5-3 is for the tape 11-1 to pass through, so it is best to limit the installation position of the tape roll 11 to the space between the two levers 5-3. For this purpose, two tape roll limiting structures 1-3 can be provided on the housing 1.

Claims

1. A safety medical adhesive tape cutter, comprising a housing (1) and a tape shaft (2), a sticking plate (3) and a cutting strip (4) arranged in the same direction, the tape shaft (2) is detachably connected with the housing (1), and the sticking plate (3) is located in front of the tape shaft (2) and connected with the housing (1); characterized in that: The utility model relates to a cutting strip moving structure, including cover plate (6), spring (7), cutting strip moving structure (5) and lower limit pad (8), the both ends of shell (1) top have the guide groove (1-1) of front -back direction setting, cover plate (6) cover on shell (1) and front end are located in the front of pasting board (3), and the both ends of cover plate (6) are cooperated with the guide groove (1-1) setting, and the upper surface of drive protrusion (6-1) of cover plate (6) is drive inclined plane (6-1-1) of low after high of front low, and the lower surface of drive protrusion (6-1) is locating surface (6-1-2), spring (7) supports cover plate (6) to front, and cutting strip moving structure (5) is set with adhesive tape axle (2) same direction, and cutting strip moving structure (5) includes cutting strip backing plate (5-1), pivot (5-2) and two levers (5-3), and cutting strip backing plate (5-1) rear end is hinged with shell (1), and cutting strip backing plate (5-1) front part has long hole (5-1-1), and pivot (5-2) is cooperated with long hole (5-1-1) setting, and pasting board (3) has cutting strip groove (3-1), and cutting strip (4) is cooperated with cutting strip groove (3-1) setting, and cutting strip (4) upper end exposes pasting board (3), and cutting strip (4) lower end is connected with pivot (5-2), and two levers (5-3) are connected in cutting strip backing plate (5-1) both ends, and lever (5-3) top end is abutted on locating surface (6-1-2) and is adjacent drive inclined plane (6-1-1), and lower limit pad (8) is located cutting strip backing plate (5-1) below, ​ When cover plate (6) moves back, lever (5-3) leaves locating surface (6-1-2), lever (5-3) loses locating surface (6-1-2) support, cutting strip moving structure (5) rotates due to its own gravity and the gravity of cutting strip (4), cutting strip backing plate (5-1) rotates downward to abut against lower limit pad (8), and cutting strip (4) moves downward to be lower than the surface of pasting board (3) in upper end.

2. The safety medical tape cutter according to claim 1, characterized by: It further includes mounting hole cover (10), and cover plate (6) has adhesive tape roll through hole (6-2), and mounting hole cover (10) covers adhesive tape roll through hole (6-2).

3. The safety medical tape cutter of claim 2, wherein: Cutting strip moving structure (5) includes upper crossbeam (5-4), and upper crossbeam (5-4) connects two levers (5-3), and upper crossbeam (5-4) abuts against locating surface (6-1-2).

4. The safety medical tape cutter of claim 3, wherein: It further includes flexible pad (9), and flexible pad (9) is connected to the front end of cover plate (6).

5. The safety medical tape cutter of claim 4, wherein: Shell (1) is provided with front limit body (1-2) and rear limit body (1-4), and front limit body (1-2) limits the limit position of cover plate (6) moving forward, and rear limit body (1-4) limits the limit position of cover plate (6) moving back.

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