CN112027771B

CN112027771B - Safe medical sticky tape cutter

Info

Publication number: CN112027771B
Application number: CN202010876474.8A
Authority: CN
Inventors: 杨丽超; 冯灵; 赖昕
Original assignee: West China Hospital of Sichuan University
Current assignee: West China Hospital of Sichuan University
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2023-04-25
Anticipated expiration: 2040-08-27
Also published as: CN112027771A

Abstract

The invention discloses a safe medical adhesive tape cutter, and provides a safe medical adhesive tape cutter which has high safety and can prevent adhesive tape from being polluted. The adhesive tape cutter comprises a shell, an adhesive plate, a cutting strip, a cover plate, a first spring and a cutting strip moving structure; the cover plate covers the shell, the front end of the cover plate is positioned in front of the sticking plate, the cover plate can move back and forth, and the cover plate is provided with a driving protrusion; the first spring supports the cover plate forwards; the cutting strip moving structure comprises a cutting strip base plate, a rotating shaft, a guide structure, a second spring and two dowel bars, the guide structure is connected with the shell, the cutting strip base plate is matched with the guide structure, the cutting strip base plate can move forwards and backwards, the front part of the cutting strip base plate is provided with a guide long hole, the rotating shaft is matched with the guide long hole, and the second spring supports the cutting strip base plate backwards; the adhesive board is provided with a cutting strip groove, the cutting strip is matched with the cutting strip groove, the upper end of the cutting strip is exposed out of the adhesive board, and the lower end of the cutting strip is connected with the rotating shaft.

Description

Safe medical sticky tape cutter

Technical Field

The invention relates to the technical field of medical adhesive tape cutting, in particular to a safe medical adhesive tape cutter.

Background

Medical adhesive tapes are widely applied clinically, and some gauze, a plurality of puncture needles and pipelines placed into human bodies are all required to be fixed by the adhesive tapes, so that the adhesive tapes are used in large amounts.

The applicant has now used the tape cutter shown in fig. 1 and 2 to cut the tape, which comprises a housing, a tape shaft detachably connected to the housing, a sticking plate located in front of the tape shaft and connected to the housing, and a cutting bar located in front of the sticking plate and connected to the housing. The adhesive tape roll is sleeved on the adhesive tape shaft, and a plurality of adhesive tape rolls can be sleeved on the adhesive tape shaft due to large adhesive tape consumption. The adhesive tape is pulled out and stuck on the sticking board. When the adhesive tape is taken, the finger extends between the adhesive plate and the adhesive tape roll, and the adhesive tape adhered on the adhesive plate is pulled up and then pulled out; then, the hand is turned down, the tape is attached to the adhesive plate and the cutting strip cuts the tape. The whole adhesive tape taking process is very simple and can be operated by one hand.

The adhesive tape cutter has the following disadvantages: 1. the cutting strip is sharp, otherwise, the adhesive tape is difficult to cut smoothly; the cutting edge of the cutting strip is completely exposed, and medical staff is easy to touch and hurt; 2. the shell cannot be covered without a cover plate, and the adhesive tape is easy to pollute; however, if the cover plate is arranged, the cover plate covers the adhesive tape, and the adhesive tape cannot be taken out; if the cover plate is opened to take the adhesive tape, the step of opening the cover plate is added before the adhesive tape is pulled out, and the step of closing the cover plate is added after the adhesive tape is cut off, so that the adhesive tape is more complicated.

ZL201921957235.4 discloses a tape cutter comprising a plurality of safety blocks and a plurality of spacer plates; each partition plate is arranged at intervals along the length direction of the adhesive tape shaft and is connected with the shell, and the partition plates are close to the adhesive tape shaft, so that part of the adhesive tape shaft corresponding to the partition plates cannot be sleeved with adhesive tape; the safety check blocks are arranged in one-to-one correspondence with the spacing plates, and the safety check blocks cover the cutting-off strips. The safety stop block covers the cutting strips, so that not only is part of the cutting strips blocked, but also the cutting strips which are not blocked are in the concave position and are not easy to touch, the possibility that a human body touches the cutting strips is reduced, and the safety of the adhesive tape cutter is improved. However, the tape cutter occupies space due to the safety stop block and the partition plate, so that the number of the tape rolls which can be installed by the tape cutter is reduced, the frequency of installing the tape rolls is increased, and the problem of preventing the tape from being polluted is not solved.

Disclosure of Invention

The invention aims to solve the technical problems that: provides a safe medical adhesive tape cutter with high safety and capable of preventing adhesive tape from being polluted.

The technical scheme adopted for solving the problems is as follows: the safe medical adhesive tape cutter comprises a shell, an adhesive tape shaft, an adhesive plate and a cutting strip, wherein the adhesive tape shaft, the adhesive plate and the cutting strip are arranged in the same direction; the device also comprises a cover plate, a first spring and a cutting strip moving structure; the two ends of the top of the shell are provided with guide grooves arranged in the front-back direction; the cover plate covers the shell, the front end of the cover plate is positioned in front of the sticking plate, two ends of the cover plate are matched with the guide grooves, and the cover plate is provided with driving protrusions; the first spring supports the cover plate forwards; the cutting strip moving structure is arranged in the same direction as the adhesive tape shaft, the cutting strip moving structure comprises a cutting strip base plate, a rotating shaft, a guide structure, a second spring and two dowel bars, the guide structure is connected with the shell, the cutting strip base plate is matched with the guide structure, the cutting strip base plate can move back and forth, the front part of the cutting strip base plate is provided with a guide long hole, the guide long hole comprises a long hole front lower section, a long hole inclined section and a long hole rear upper section which are sequentially arranged from front to back, the two dowel bars are connected at two ends of the cutting strip base plate and are abutted against the driving protrusions, the rotating shaft is matched with the guide long hole and is positioned at the rear upper section of the long hole, and the second spring supports the cutting strip base plate backwards; the adhesive board is provided with a cutting strip groove, the cutting strip is matched with the cutting strip groove, the upper end of the cutting strip is exposed out of the adhesive board, and the lower end of the cutting strip is connected with the rotating shaft; when the cover plate moves backwards, the second spring enables the cutting bar backing plate to move backwards, the rotating shaft moves to the front lower section of the long hole, and the cutting bar moves downwards.

Further is: a safe medical adhesive tape cutter comprises a mounting hole cover, wherein the cover plate is provided with an adhesive tape roll passing hole, and the mounting hole cover is covered on the adhesive tape roll passing hole.

Further is: the cutting strip moving structure comprises an upper cross beam, the upper cross beam is connected with two dowel bars, and the upper cross beam is abutted against the driving protrusion.

Further is: a safe medical adhesive tape cutter comprises a flexible pad, wherein the flexible pad is connected to the front end of a cover plate.

Further is: the shell is provided with a front limiting body and a rear limiting body, the front limiting body limits the limit position of the forward movement of the cover plate, and the rear limiting body limits the limit position of the backward movement of the cover plate.

The beneficial effects of the invention are as follows: 1. the invention is provided with the cover plate, and the cover plate covers the adhesive tape roll arranged on the adhesive tape shaft and the pulled adhesive tape, so that the adhesive tape can be prevented from being polluted.

2. The specific parameters of the invention are reasonably designed, as shown in fig. 6, the front end of the cover plate is pushed by the back of the finger to enable the cover plate to move backwards a little, when the front end of the cover plate is still positioned in front of the pasting plate, the dowel bar is out of support, the second spring pushes the base plate of the cutting bar to move backwards, and the cutting bar moves downwards to the upper end lower than the surface of the pasting plate under the action of the gravity of the guide long hole and the cutting bar. In the process, the front end of the cover plate is always positioned in front of the sticking plate, so that the risk of hurting people by cutting off the strip is avoided. As shown in fig. 7, the cover plate is pushed to move backwards, the adhesive tape is exposed, and the finger pushing the cover plate can take the adhesive tape. In the process, the upper end of the cutting strip is always lower than the surface of the adhesive plate, so that the risk of hurting people by the cutting strip is avoided. Then, as shown in fig. 8, the adhesive tape is pulled out, the cover plate is reset under the action of the first spring, the driving protrusion pushes the dowel bar and the cutting strip backing plate to move forward, and the cutting strip moves up to expose the adhesive plate under the action of the guiding long hole. In the process, the driving protrusion drives the dowel bar only when the front end of the cover plate is positioned in front of the sticking plate, and the risk of hurting people caused by cutting off the dowel bar is avoided. Then holding the adhesive tape and moving downwards, cutting off the adhesive tape by the cutting strip, and sticking the rest adhesive tape on the sticking board, so that the next taking is convenient. The adhesive tape taking process has the advantages that the risk of hurting people caused by cutting off the tape is avoided; the operation can be performed by one hand, and the operation is not obviously more complicated than the prior art.

3. Compared with the adhesive tape cutter disclosed by ZL201921957235.4, the adhesive tape cutter can be used for installing more adhesive tapes and reducing the frequency of adding the adhesive tapes.

Drawings

FIG. 1 is a block diagram of a conventional tape cutter;

FIG. 2 isbase:Sub>A sectional view A-A of FIG. 1;

FIG. 3 is a front view of the safety medical tape cutter of the present invention;

FIG. 4 is a B-B cross-sectional view of FIG. 3;

FIG. 5 is a cross-sectional view of C-C of FIG. 3;

FIG. 6 is a top view of the safety medical tape cutter;

fig. 7 is an enlarged view at D of fig. 4;

FIG. 8 is a schematic diagram of a tape handling step;

FIG. 9 is a second schematic diagram of the tape handling step;

FIG. 10 is a schematic diagram of a tape handling step three;

marked in the figure as: the adhesive tape roll comprises a shell 1, a guide groove 1-1, a front limiting body 1-2, an adhesive tape roll limiting structure 1-3, a rear limiting body 1-4, an adhesive tape shaft 2, an adhesive plate 3, a cutting strip groove 3-1, a cutting strip 4, a cutting strip moving structure 5, a cutting strip base plate 5-1, a rotating shaft 5-2, a dowel bar 5-3, an upper cross beam 5-4, a guide structure 5-5, a second spring 5-6, a guide long hole 5-7, a long hole front lower section 5-7-1, a long hole inclined section 5-7-2, a long hole rear upper section 5-7-3, a cover plate 6, a driving protrusion 6-1, an adhesive tape roll passing hole 6-2, a first spring 7, a mounting hole cover 8, a flexible pad 9, an adhesive tape roll 10 and an adhesive tape 10-1.

Detailed Description

The invention is further described below with reference to the drawings and the detailed description.

As shown in fig. 3 to 7: the safe medical adhesive tape cutter comprises a shell 1, an adhesive tape shaft 2, a pasting plate 3 and a cutting strip 4 which are arranged in the same direction, wherein the adhesive tape shaft 2 is detachably connected with the shell 1, and the pasting plate 3 is positioned in front of the adhesive tape shaft 2 and is connected with the shell 1; the device also comprises a cover plate 6, a first spring 7 and a cutting strip moving structure 5; the two ends of the top of the shell 1 are provided with guide grooves 1-1 which are arranged in the front-back direction; the cover plate 6 is covered on the shell 1, the front end of the cover plate is positioned in front of the sticking board 3, two ends of the cover plate 6 are matched with the guide groove 1-1, and the cover plate 6 is provided with a driving protrusion 6-1; the first spring 7 forward supports the cover plate 6; the cutting strip moving structure 5 is arranged in the same direction as the adhesive tape shaft 2, the cutting strip moving structure 5 comprises a cutting strip base plate 5-1, a rotating shaft 5-2, a guide structure 5-5, a second spring 5-6 and two dowel bars 5-3, the guide structure 5-5 is connected with the shell 1, the cutting strip base plate 5-1 is matched with the guide structure 5-5, the cutting strip base plate 5-1 can move back and forth, a guide long hole 5-7 is formed in the front part of the cutting strip base plate 5-1, the guide long hole 5-7 comprises a long hole front lower section 5-7-1, a long hole inclined section 5-7-2 and a long hole rear upper section 5-7-3 which are sequentially arranged from front to back, the two dowel bars 5-3 are connected to two ends of the cutting strip base plate 5-1 and abut against the driving protrusion 6-1, the rotating shaft 5-2 is matched with the guide long hole 5-7 and is positioned at the long hole rear upper section 5-7-3, and the second spring 5-6 supports the cutting strip base plate 5-1 backwards; the adhesive board 3 is provided with a cutting strip groove 3-1, a cutting strip 4 is matched with the cutting strip groove 3-1, the upper end of the cutting strip 4 is exposed out of the adhesive board 3, and the lower end of the cutting strip 4 is connected with a rotating shaft 5-2; when the cover plate 6 moves backwards, the second spring 5-6 enables the cutting strip backing plate 5-1 to move backwards, the rotating shaft 5-2 moves to the position of the front lower section 5-7-1 of the long hole, and the cutting strip 4 moves downwards.

The present invention is used as in the conventional tape cutter, by fitting the tape roll 10 to the tape shaft 2, then pulling out the tape 10-1, and attaching the tape 10-1 to the attaching plate 3.

The tape 10-1 is used as follows: 1. as shown in fig. 6, when the front end of the cover plate 6 is pushed by the back of the finger to move the cover plate 6 backward a small amount and the front end of the cover plate 6 is still positioned in front of the adhesive plate 3, the dowel 5-3 is not supported, the second spring 5-6 pushes the cutting strip backing plate 5-1 to move backward, and the cutting strip 4 moves down to the upper end lower than the surface of the adhesive plate 3 under the action of the gravity of the guide long hole 5-7 and the cutting strip 4. In this process, since the front end of the cover plate 6 is always located in front of the adhesive plate 3, there is no risk of injury to the person by the cut-off strip 4. 2. As shown in FIG. 7, the cover plate 6 is pushed to move backwards, the adhesive tape 10-1 is exposed, and the finger pushing the cover plate 6 can take the adhesive tape 10-1. In the process, the upper end of the cutting strip 4 is always lower than the surface of the adhesive plate 3, so that the risk of injury to people caused by the cutting strip 4 is avoided. 3. Then, as shown in fig. 8, the adhesive tape 10-1 is pulled out, the cover plate 6 is reset under the action of the first spring 7, the driving protrusion 6-1 pushes the dowel 5-3 and the cutting strip backing plate 5-1 to move forward, and the cutting strip 4 moves up to expose the adhesive plate 3 under the action of the guide long hole 5-7. In the process, as the front end of the cover plate 6 is positioned in front of the sticking board 3, the driving protrusion 6-1 drives the dowel bar 5-3, and the risk of hurting people by the cutting strip 4 is avoided. 4. The adhesive tape 10-1 is held by hand and moved downwards, the adhesive tape 10-1 can be cut off by the cutting strip 4, and the rest of the adhesive tape 10-1 is stuck on the sticking board 3, so that the next taking is convenient. The adhesive tape 10-1 is not cut off in the process of taking the adhesive tape, so that the risk of hurting people by the cutting strip 4 is avoided; the operation can be performed by one hand, and the operation is not obviously more complicated than the prior art.

The cover plate 6 of the invention not only plays a role in covering the adhesive tape roll 10 and the adhesive tape 10-1 in the safety medical adhesive tape cutter to avoid pollution, but also plays a role in driving the cutting bar moving structure 5 to move the cutting bar 4.

It is obvious that the force of the first spring 7 of the invention, via the cover plate 6 and the force-transmitting rod 5-3, to the parting bead 5-1 should be greater than the force of the second spring 5-6 to the parting bead 5-1. The first spring 7 may be specifically disposed as shown in fig. 5.

The position of the driving protrusion 6-1, the distance between the front end of the cover plate 6 and the pasting plate 3, the shape of the guiding long hole 5-7 and other parameters are reasonably designed to ensure that the first taking step of the adhesive tape 10-1 is realized, namely, the cover plate 6 is moved backwards a little, and when the front end of the cover plate 6 is still positioned in front of the pasting plate 3, the cutting strip 4 is moved downwards to the upper end lower than the surface of the pasting plate 3. It is ensured that the tape 10-1 is taken in step three, that is, when the front end of the cover plate 6 is positioned in front of the adhesive plate 3, the driving protrusion 6-1 pushes the dowel bar 5-3 and the cutting strip backing plate 5-1 to move forward, and the cutting strip 4 moves up until the adhesive plate 3 is exposed.

When the roll of tape 10 is installed, the cover plate 6 can be moved backward and the roll of tape 10 can be put in, but this is inconvenient. The safety medical adhesive tape cutter is convenient for installing the adhesive tape roll 10, and comprises an installation hole cover 8, wherein the cover plate 6 is provided with an adhesive tape roll passing hole 6-2, and the installation hole cover 8 is covered on the adhesive tape roll passing hole 6-2. The mounting hole cover 8 is opened and the roll of tape 10 is allowed to enter the housing 1 from the roll of tape through the hole 6-2, thereby facilitating the mounting of the roll of tape 10. When the tape roll 10 is mounted, the tape shaft 2 is retracted, and then the tape roll 10 is wound around the tape shaft 2, and the tape shaft 2 is rewound, as in the conventional tape cutter.

Due to manufacturing errors, it is difficult to avoid that only one dowel 5-3 is resting against the locating surface 6-1-2. This results in a large force being applied to the transfer lever 5-3 and an unstressed force being applied to the other transfer lever 5-3. In order to improve the stress distribution and the reliability of the invention, the cutting bar moving structure 5 comprises an upper cross beam 5-4, the upper cross beam 5-4 is connected with two dowel bars 5-3, and the upper cross beam 5-4 and the dowel bars 5-3 are abutted against the driving protrusions 6-1.

In order to improve the hand feeling when pushing the cover plate 6, a safety medical adhesive tape cutter comprises a flexible pad 9, wherein the flexible pad 9 is connected to the front end of the cover plate 6.

Obviously, the invention should limit the forward movement of the cover plate 6. The cover plate 6 is prevented from moving out of the guide groove 1-1, and therefore, the front limiting body 1-2 is arranged on the shell 1, and the front limiting body 1-2 limits the limit position of the forward movement of the cover plate 6. In order to improve the hand feeling when the cover plate 6 is pushed, the front end area of the cover plate 6 should be larger appropriately, and at this time, if the cover plate 6 moves backward excessively, the front end of the cover plate 6 interferes with the dowel 5-3, so that the housing 1 is provided with the rear limiting body 1-4, and the rear limiting body 1-4 limits the limit position of the backward movement of the cover plate 6, so as to avoid the interference between the front end of the cover plate 6 and the dowel 5-3.

The space between the two force transfer rods 5-3 is provided for the adhesive tape 10-1 to pass through, so that the mounting position of the adhesive tape roll 10 is preferably also limited between the two force transfer rods 5-3, for which purpose two adhesive tape roll limiting structures 1-3 can be provided on the housing 1.

Claims

1. A safe medical adhesive tape cutter comprises a shell (1), an adhesive tape shaft (2), a pasting plate (3) and a cutting strip (4) which are arranged in the same direction, wherein the adhesive tape shaft (2) is detachably connected with the shell (1), and the pasting plate (3) is positioned in front of the adhesive tape shaft (2) and is connected with the shell (1); the method is characterized in that: comprises a cover plate (6), a first spring (7) and a cutting strip moving structure (5); guide grooves (1-1) arranged in the front-back direction are formed at two ends of the top of the shell (1); the cover plate (6) is covered on the shell (1) and the front end of the cover plate is positioned in front of the sticking board (3), two ends of the cover plate (6) are matched with the guide groove (1-1), and the cover plate (6) is provided with a driving protrusion (6-1); the first spring (7) supports the cover plate (6) forwards; the cutting strip moving structure (5) and the adhesive tape shaft (2) are arranged in the same direction, the cutting strip moving structure (5) comprises a cutting strip base plate (5-1), a rotating shaft (5-2), a guiding structure (5-5), a second spring (5-6) and two dowel bars (5-3), the guiding structure (5-5) is connected with the shell (1), the cutting strip base plate (5-1) is matched with the guiding structure (5-5), the cutting strip base plate (5-1) can move forwards and backwards, a guiding long hole (5-7) is formed in the front part of the cutting strip base plate (5-1), the guiding long hole (5-7) comprises a long hole front lower section (5-7-1), a long hole inclined section (5-7-2) and a long hole rear upper section (5-7-3) which are sequentially arranged from front to back, the two dowel bars (5-3) are connected to two ends of the cutting strip base plate (5-1) and abut against the driving protrusions (6-1), the rotating shaft (5-2) is matched with the guiding long hole (5-7) and located at the rear upper section (5-7) of the long hole, and the second dowel bar (5-1) is supported by the second dowel bar (5-5); the adhesive board (3) is provided with a cutting strip groove (3-1), a cutting strip (4) is matched with the cutting strip groove (3-1), the upper end of the cutting strip (4) is exposed out of the adhesive board (3), and the lower end of the cutting strip (4) is connected with the rotating shaft (5-2); when the cover plate (6) moves backwards, the second spring (5-6) enables the cutting bar base plate (5-1) to move backwards, the rotating shaft (5-2) moves to the front lower section (5-7-1) of the long hole, and the cutting bar (4) moves downwards;

pushing the front end of the cover plate (6) with the back of a finger to enable the cover plate (6) to move backwards a little, when the front end of the cover plate (6) is still positioned in front of the adhesive plate (3), the dowel bar (5-3) is out of support, the second spring (5-6) pushes the cutting bar base plate (5-1) to move backwards, and the cutting bar (4) moves downwards to the upper end lower than the surface of the adhesive plate (3) under the action of the gravity of the guide long hole (5-7) and the cutting bar (4); the cover plate (6) is pushed to move backwards, the adhesive tape (10-1) is exposed, and the adhesive tape (10-1) can be taken by pushing fingers of the cover plate (6); pulling out the adhesive tape (10-1), resetting the cover plate (6) under the action of the first spring (7), driving the bulge (6-1) to push the dowel bar (5-3) and the cutting strip backing plate (5-1) to move forward, and moving the cutting strip (4) upwards under the action of the guide long hole (5-7) until the adhesive plate (3) is exposed; then the adhesive tape (10-1) is held and moved downwards, the adhesive tape (10-1) can be cut by the cutting strip (4), and the rest of the adhesive tape (10-1) is stuck on the sticking board (3).

2. The safety medical tape cutter according to claim 1, wherein: comprises an installation hole cover (8), a tape roll passing hole (6-2) is arranged on the cover plate (6), and the installation hole cover (8) covers the tape roll passing hole (6-2).

3. The safety medical tape cutter according to claim 2, wherein: the cutting strip moving structure (5) comprises an upper cross beam (5-4), the upper cross beam (5-4) is connected with two dowel bars (5-3), and the upper cross beam (5-4) is abutted against the driving protrusion (6-1).

4. A safety medical tape cutter according to claim 3, wherein: comprises a flexible pad (9), wherein the flexible pad (9) is connected with the front end of the cover plate (6).

5. The safety medical tape cutter according to claim 4, wherein: the shell (1) is provided with a front limiting body (1-2) and a rear limiting body (1-4), the front limiting body (1-2) limits the limit position of the front movement of the cover plate (6), and the rear limiting body (1-4) limits the limit position of the rear movement of the cover plate (6).