Safety scissors and anti-injury cutter
By setting a give way groove and elastic cutting piece at the shear handle of the medical scissors, and moving the cutting piece when the scissors are closed, the design of safe scissors is achieved, solving the risk of injury or suicide when psychiatric patients or high-stress patients are exposed to medical scissors, ensuring the safety of the medical process.
Patent Information
- Application Number
- CN202421592665.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-05
AI Technical Summary
In medical institutions, mentally ill patients or patients with excessive mental stress are at risk of robbing scissors and injuring people or committing suicide when exposed to medical devices. The prior art is difficult to effectively prevent such accidents.
A safety scissor is designed. By setting a give way groove at the scissor handle of the first scissor and elastically installing a cutting member similar to a seesaw, a trigger rod penetrates through the first scissors, so that the cutting member is hidden by elastic force when the scissors are opened, and when the scissors tend to be closed, the second scissors move the cutting member against the contact hair rod, thereby achieving the blade collection and cutting effect.
It effectively avoids patients' injuries or suicides after obtaining scissors, ensuring safety during the medical process.
Smart Images
Figure CN222755502U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical knives, in particular to a pair of safety scissors and an anti-injury knife. Background Art
[0002] Mental illness refers to a serious psychological disorder, in which the patient's cognition, emotion, will, behavior and other psychological activities may show persistent and obvious abnormalities; the patient cannot study, work and live normally; his actions and behaviors are difficult for ordinary people to understand and appear strange and different; under the control of the morbid psychology, the patient may commit suicide or attack or harm others.
[0003] In conventional medical institutions, there are cases of admitting patients with excessive mental stress and patients who conceal their history of mental illness. Since various medical devices are required for treatment, some medical devices in the existing technology require the clinical use of scissors to adjust the size, or to use scissors to cut and disassemble pipelines, etc. This gives psychiatric patients or patients with excessive mental stress the opportunity to come into contact with knives, and there is a risk of patients snatching the scissors and injuring others or committing suicide.
[0004] Therefore, the prior art still needs to be improved and developed. Utility Model Content
[0005] In order to solve the problem that in the prior art, conventional medical institutions, when admitting patients, have some patients with excessive mental stress or patients who conceal their history of mental illness, such patients are not mentally stable enough, and when medical staff use scissors to adjust medical equipment or remove medical equipment clinically, the patients have the opportunity to touch the knives, and there is a risk of patients snatching the scissors to injure others or committing suicide, the utility model provides a safety scissors and an anti-injury knife.
[0006] The utility model is realized by the following technical solutions:
[0007] A safety scissors, wherein the safety scissors comprises:
[0008] A first shear body, wherein the first shear body is provided with a clearance groove and a clearance hole;
[0009] A cutting piece, wherein the cutting piece is elastically rotatably connected to the first shear body, one end of the cutting piece corresponds to the give-way slot, and the other end of the cutting piece is rotatably provided with a trigger rod, and the trigger rod is slidably sleeved in the give-way hole;
[0010] a second scissor body, the second scissor body being hinged to the first scissor body, and the second scissor body being in contact with one end of the trigger rod;
[0011] The opposite surfaces of the shear handles of the first shear body and the second shear body are both planes.
[0012] The safety scissors, wherein a mounting groove is provided on the first scissors body at a position corresponding to between the make way groove and the make way hole, two ear plates are protrudingly provided on the outer side of the first scissors body at a position corresponding to the mounting groove, and the cutting piece is clamped and rotatably arranged between the two ear plates.
[0013] The safety scissors, wherein the cutting element comprises:
[0014] A frame, the center of which is rotatably connected to the two ear plates;
[0015] A cutter head, the cutter head is detachably connected to one end of the frame, and the cutter head is slidably arranged along the clearance groove;
[0016] A tension spring, one end of which is fixedly connected to an end of the frame away from the cutter head, and the other end of which is fixedly arranged in the mounting groove.
[0017] The safety scissors, wherein the cutting end of the blade head is arranged along a predetermined arc;
[0018] A positioning groove is arranged on the second scissors body at a position corresponding to the giving way groove. When the first scissors body and the second scissors body are closed, the cutting end of the cutter head is located in the positioning groove.
[0019] The safety scissors, wherein the frame is provided with an assembly groove, a mounting plate is detachably provided in the assembly groove, and the mounting end of the blade head is embedded in the assembly groove;
[0020] A card hole is hollowed out on the mounting end of the cutter head, a tenon is protruded in the assembly groove, the tenon is snap-fitted with the card hole, and the end of the tenon is detachably connected to the mounting plate.
[0021] The safety scissors, wherein an adjustment hole is provided on the frame at a position corresponding to the trigger rod, the adjustment hole is a waist-shaped hole, one end of the trigger rod is rotatably connected to the adjustment hole and is slidably arranged along the adjustment hole.
[0022] In the safety scissors, a groove is provided on the frame at a position corresponding to the tension spring, one end of the tension spring is fixedly disposed in the groove, and the width of the groove is adapted to the diameter of the tension spring.
[0023] The safety scissors, wherein the handle end of the first scissors body is rotatably provided with a locking piece, one end of the locking piece is connected to the first scissors body for damping rotation, and the other end of the locking piece is provided with a hook lock;
[0024] A lock column is arranged at the end of the handle of the second scissors body. The lock column is arranged protrudingly, and the hook lock is detachably engaged with the lock column.
[0025] The safety scissors, wherein a first guard ring is arranged outside the handle of the first scissors body, a second guard ring is arranged outside the handle of the second scissors body, and the first guard ring and the second guard ring are arranged symmetrically.
[0026] An anti-injury knife, wherein the anti-injury knife comprises the above-mentioned safety scissors.
[0027] The beneficial effects of the utility model are as follows: the utility model provides a yield groove at the shear handle of the first scissors body, and elastically installs a cutting piece similar to a seesaw, and provides a trigger rod that passes through the first scissors body on the cutting piece, so that when the scissors are in an open state, the cutting piece is hidden by elastic force, and when the scissors tend to be closed, the second scissors body abuts against the trigger rod to move the cutting piece, thereby achieving the effect of retracting the blade and cutting, and preventing patients from injuring others or committing suicide after obtaining the scissors. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a three-dimensional structural diagram of the safety scissors of the utility model;
[0029] Figure 2 It is an exploded view of the safety scissors of the utility model;
[0030] Figure 3 This is an exploded view of the structure of the safety scissors of the utility model;
[0031] Figure 4 It is a cross-sectional view of the first embodiment of the safety scissors of the utility model;
[0032] Figure 5 It is a cross-sectional view of the second embodiment of the safety scissors of the utility model.
[0033] exist Figures 1 to 5 Middle: 100, first scissors body; 110, clearance groove; 120, clearance hole; 130, mounting groove; 131, ear plate; 140, first guard ring; 200, second scissors body; 210, positioning groove; 220, locking column; 230, second guard ring; 300, cutting piece; 310, frame; 311, assembly groove; 312, mounting plate; 313, tenon; 314, adjustment hole; 315, groove; 320, cutter head; 321, clamping hole; 330, tension spring; 400, trigger rod; 500, locking piece; 510, hook lock. DETAILED DESCRIPTION
[0034] In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.
[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0037] In conventional medical institutions, there are cases of admitting patients with excessive mental stress and patients who conceal their history of mental illness. Since various medical devices are required for treatment, some medical devices in the existing technology require the clinical use of scissors to adjust the size, or to use scissors to cut and disassemble pipelines, etc. This gives psychiatric patients or patients with excessive mental stress the opportunity to come into contact with knives, and there is a risk of patients snatching the scissors and injuring others or committing suicide.
[0038] Based on the above problems in the prior art, the utility model provides a safety scissors, such as Figure 1 and Figure 2 As shown, the safety scissors include: a first scissors body 100, a scissors handle of the first scissors body 100 is provided with a clearance groove 110, and a side of the scissors groove 110 is provided with a clearance hole 120 at a predetermined interval; a second scissors body 200, the second scissors body 200 is hingedly connected to the first scissors body 100; a cutting piece 300, the cutting piece 300 is elastically rotatably connected to the first scissors body 100, and one end of the cutting piece 300 is slidably arranged along the clearance groove 110; a trigger rod 400, the trigger rod 400 is slidably sleeved in the clearance hole 120, one end of the trigger rod 400 is rotatably connected to the cutting piece 300, and the other end abuts against the scissors handle of the second scissors body 200.
[0039] The utility model provides a yield groove 110 at the handle of the first scissors body 100, and elastically installs a seesaw-like cutting piece 300, and provides a trigger rod 400 that passes through the first scissors body 100 on the cutting piece 300, so that when the scissors are in an open state, the cutting piece 300 is hidden by elastic force, and when the scissors tend to be closed, the second scissors body 200 abuts against the trigger rod 400 to move the cutting piece, thereby achieving the effect of blade retraction and cutting, and preventing patients from injuring others or committing suicide after obtaining the scissors.
[0040] In the above embodiment, if Figure 1 and Figure 2 As shown in the figure, the main body of the safety scissors of the utility model is composed of a first scissors body 100, a second scissors body 200, a cutting piece 300 and a trigger rod 400, wherein the first scissors body 100 is hingedly connected to the second scissors body 200, which is similar to the scissors structure in the prior art, except that no blades are arranged on the first scissors body 100 and the second scissors body 200, but the shear handles of the first scissors body 100 and the second scissors body 200 are a relative plane structure, which is used for clamping the medical device to be cut in actual use, and a clearance groove 110 is arranged on the shear handle of the first scissors body 100, which is used for clamping the medical device to be cut. The positioning groove 110 is used to provide a clearance for the cutting part of the cutting piece 300. In the specific setting, the cutting piece 300 is elastically rotatably connected to the first scissors body 100, and the end of the cutting piece 300 used for cutting is slidably set along the clearance groove 110, so that during use, the cutting part of the cutting piece 300 can correspond to the relative part of the first scissors body 100 and the second scissors body 200, and the cutting of the medical device is achieved by the cutting piece 300. During the process, the cutting part of the cutting piece 300 is hidden inside the first scissors body 100 and the second scissors body 200, which can avoid scratching the patient's skin.
[0041] In order to ensure that the cutting part of the cutting piece 300 can be hidden when the first scissors body 100 and the second scissors body 200 are opened, in the present embodiment, a clearance hole 120 is provided on the first scissors body 100 at a predetermined distance on one side of the clearance groove 110. The clearance hole 120 passes through the first scissors body 100, and the trigger rod 400 is slidably sleeved inside the clearance hole 120. One end of the trigger rod 400 is rotatably connected to the cutting piece 300, and the other end abuts against the shear handle of the second scissors body 200, so that the cutting piece 300 forms a seesaw-like structure on the first scissors body 100.
[0042] In specific use, such as Figure 4As shown, when the first scissors body 100 and the second scissors body 200 are in a closed state (or have a certain degree of closing tendency), the shear handle of the second scissors body 200 exerts pressure on the trigger rod 400, driving the trigger rod 400 to move upward as shown in the figure. At this time, the cutting piece 300 is driven to rotate, causing the cutting part of the cutting piece 300 to rotate downward, that is, rotate to the relative position of the shear handles of the first scissors body 100 and the second scissors body 200, thereby forming a medical device contact between the shear handles of the first scissors body 100 and the second scissors body 200. Under the active force applied by medical staff, the medical device can be cut.
[0043] When the first scissor body 100 and the second scissor body 200 are in the open state, since the cutting piece 300 is elastically connected to the first scissor body 100, a space is formed after the second scissor body 200 and the shear handle of the first scissor body 100 are separated, the trigger rod 400 moves to the opening under the action of the elastic tension. Figure 4 The cutting member 300 is driven to rotate, and the cutting portion of the cutting member 300 rotates upward, so that it can be hidden in the yield groove 110 of the first scissors body 100, so as to achieve the effect of no blade on the surface after the first scissors body 100 and the second scissors body 200 are opened, so as to prevent the blade from causing accidental injury to the patient when the blade contacts the patient's skin or is accidentally touched or played with by the patient.
[0044] Furthermore, if Figure 3 As shown, in order to realize the installation of the above-mentioned cutting member 300 and provide space for different actions of the cutting member 300, in this embodiment, a mounting groove 130 is further provided on the first scissors body 100 at a position corresponding to the position between the make way groove 110 and the make way hole 120. The mounting groove 130 is recessed into the interior of the first scissors body 100 to provide an installation space. Furthermore, two ear plates 131 are protrudingly provided at a position corresponding to the mounting groove 130 on the outer side of the first scissors body 100. The above-mentioned cutting member 300 is clamped and rotatably arranged between the two ear plates 131. During the specific installation, the two ear plates 131 on both sides of the cutting member 300 are respectively installed and combined, positioned and rotated, so that both ends have a rotatable space to ensure the completion of the above-mentioned adjustment effect.
[0045] More specifically, Figure 3As shown, the cutting member 300 is specifically composed of a frame 310, a blade 320 and a tension spring 330, wherein the center of the frame 310 is rotatably connected to the two ear plates 131, which can be realized by a through-shaft in a specific setting. The blade 320 is detachably connected to one end of the frame 310, and the blade 320 is the component actually used for cutting. In a specific setting, it can be replaced and installed by being detachable, thereby improving the service life of the safety scissors. The blade 320 is slidably arranged along the above-mentioned clearance groove 110 to form a switch at different specific positions corresponding to the clearance groove 110. One end of the tension spring 330 is fixedly connected to the end of the frame 310 away from the blade 320, and the other end is fixedly arranged in the installation groove 130, that is, the tension spring 330 is located at the end corresponding to the above-mentioned trigger rod 400, and can be arranged in parallel in actual setting to ensure rapid feedback.
[0046] In this embodiment, the first scissors body 100 and the second scissors body 200 can be made of plastic or metal materials with a smooth surface and rounded corners. The frame 310 and the trigger rod 400 are also made of plastic or metal materials to ensure triggering stability. The blade head 320 is made of steel material to avoid rust while ensuring the strength of the body and preventing blade breakage during use.
[0047] In this embodiment, since the tension spring 330 and the trigger rod 400 are located on the same end of the frame 310, the trigger rod 400 is Figure 4 As shown in the figure, when the first scissors body 100 and the second scissors body 200 are moved upward, the tension spring 330 is stretched and is in a state of accumulating elastic potential energy. When the first scissors body 100 and the second scissors body 200 are in an open state, a displacement space for the trigger rod 400 is provided between the first scissors body 100 and the second scissors body 200. Under the restoring force of the elastic potential energy of the tension spring 330, the frame 310 is driven to rotate. At this time, the tension spring 330 is reset, and the trigger rod 400 slides to Figure 4 The blade head 320 is stored in the clearance groove 110 to achieve the effect of closing the blade. When the first scissors 100 and the second scissors 200 are closed, the second scissors 200 presses the end of the trigger rod 400 to slide the trigger rod 400 to the Figure 4 The tension spring 330 accumulates elastic potential energy again, and the cutter head 320 is moved out for cutting.
[0048] Furthermore, in another embodiment of the present invention, in order to achieve a better cutting effect, in this embodiment, the cutting end of the cutter head 320 is arranged along a predetermined arc, so as to form an effective contact with the medical device to be cut; in addition, in order to make the blade part of the cutter head 320 form a more sufficient contact with the medical device, in this embodiment, a positioning groove 210 is further arranged on the second scissors body 200 at a position corresponding to the yield groove 110, and the positioning groove 210 is used to accommodate the end of the cutter head 320, so that the middle blade part of the cutter head 320 is in contact with the medical device, thereby avoiding the occurrence of slipping of the blade during cutting. Specifically, Figure 4 As shown, the position of the blade head 320 is preset so that when the first scissors body 100 and the second scissors body 200 are closed, the end of the cutting end of the blade head 320 is located in the positioning groove 210, and when the first scissors body 100 and the second scissors body 200 are separated by a certain angle, the end of the blade head 320 is also located in the positioning groove 210, so as to ensure that when the first scissors body 100 and the second scissors body 200 are in a state of clamping the medical device, the blade of the blade head 320 forms effective contact with the medical device; on the other hand, a specific separation angle is preset so that when the first scissors body 100 and the second scissors body 200 are opened to an angle greater than the angle, the blade head 320 is stored in the clearance groove 110, thereby ensuring that the patient will not come into contact with the blade when not in use.
[0049] In the first embodiment of the present invention, Figure 4 As shown, the blade portion of the blade head 320 can be preset as a straight blade, and is set at a certain tilt angle relative to the first scissors body 100. When in use, the tilted straight blade corresponds to the separation portion of the shear handle of the first scissors body 100 and the second scissors body 200, so that when the first scissors body 100 and the second scissors body 200 are closed, the medical device is cut by the inclined straight blade and the plane of the shear handle of the second scissors body 200. The cutting process is similar to the process of cutting an object with a guillotine. In the second embodiment of the utility model, as Figure 5 As shown, the blade portion of the cutter head 320 can be preset as a curved blade, that is, a shape similar to a sickle. When used, the arc-shaped blade of the cutter head 320 corresponds to the separation portion of the shear handle of the first scissors body 100 and the second scissors body 200, so that the medical device is cut by the arc-shaped blade, and the cutting process is similar to the process of cutting an object with a sickle. In other possible implementations of the utility model, the blade portion of the cutter head 320 can also be set to other shapes that can achieve effective cutting, and this application does not limit this.
[0050] In another embodiment of the present invention, Figure 3As shown, in order to realize the detachable installation of the cutter head 320 and ensure the stability of the cutter head 320 during use, in the present embodiment, an assembly groove 311 is further provided on the frame 310. At the same time, a mounting plate 312 is detachably provided in the assembly groove 311. The mounting end of the cutter head 320 is embedded in the assembly groove 311 to fix the cutter head 320. Specifically, the shapes of the mounting plate 312 and the assembly groove 311 are adapted. After the mounting end of the cutter head 320 is placed in the assembly groove 311, the mounting plate 312 and the assembly groove 311 form a combination to limit the position of the cutter head 320.
[0051] Furthermore, in order to further improve the stability of the use of the cutter head 320, in the present embodiment, a card hole 321 is hollowed out on the mounting end of the cutter head 320. The card hole 321 has a preset shape, and the preset shape is preferably an irregular shape to prevent the cutter head 320 from rotating. A tenon 313 is protruded in the assembly groove 311, and the shape of the tenon 313 is adapted to the shape of the card hole 321. When the cutter head 320 is installed, the card hole 321 is sleeved with the tenon 313 to form a limit, and then the mounting plate 312 is combined with the end of the tenon 313, so that the mounting plate 312 and the assembly groove 311 clamp and fix the cutter head 320. More specifically, the combination of the mounting plate 312 and the end of the tenon 313 can be achieved by various methods such as screw connection and card connection, which is not limited by the present application.
[0052] Based on the above embodiment, in another possible implementation of the present invention, as Figure 3 As shown, in order to achieve smooth switching of the above-mentioned cutting member 300 during different movement processes, on the one hand, the ear plate 131 is connected to the cutting member 300 so that free rotation should be ensured. On the other hand, the utility model also provides an adjustment hole 314 at a position corresponding to the trigger rod 400 on the frame 310. The adjustment hole 314 is specifically configured to be a waist-shaped circle. The long axis of the waist-shaped adjustment hole 314 corresponds to the length direction of the first scissors body 100. One end of the trigger rod 400 is rotatably connected to the adjustment hole 314 through a connecting shaft, and the connecting shaft can slide freely along the adjustment hole 314. The effect of adjusting the relative position of the trigger rod 400 and the frame 310 when the first scissors body 100 and the second scissors body 200 are in different states of separation and closing is achieved. Since the frame 310 is rotatably set, the movable path of the part corresponding to the adjustment hole 314 is actually an arc. Therefore, by setting the adjustment hole 314 to a waist-shaped shape, the trigger rod 400 can freely adjust the relative position with the adjustment hole 314 during the movement, so as to achieve driving of the frame 310 while ensuring smooth connection with the frame 310, thereby matching the different states of the first scissors body 100 and the second scissors body 200.
[0053] In another embodiment of the present invention, Figure 3As shown, a groove 315 is further provided on the frame 310 at a position corresponding to the tension spring 330, and the groove 315 is used to accommodate the tension spring 330 and fix the tension spring 330. During the specific installation, one end of the tension spring 330 is fixedly arranged inside the groove 315, and can be connected by a screw, a bolt or the like, and the other end of the tension spring 330 is fixed in the installation groove 130, so that the tension spring 330 is formed as shown in FIG. Figure 5 The two ends of the structure are fixed as shown in the figure, so as to achieve the effect of pulling the end of the cutting member 300 away from the cutter head 320; in this embodiment, the width of the groove 315 should be adapted to the diameter of the tension spring 330. The advantage of such a setting is that the tension spring 330 can be hidden inside the groove 315, such as Figure 1 and Figure 4 As shown, in actual use, one end of the tension spring 330 is hidden in the groove 315, and the other end is hidden in the mounting groove 130, which can avoid accidental touch, thereby ensuring the connection state and preventing the tension spring 330 from loosening during use.
[0054] In another embodiment of the present invention, Figure 1 and Figure 2 As shown, a locking piece 500 is further provided at the handle end of the first scissor body 100, one end of the locking piece 500 is rotatably connected to the handle end of the first scissor body 100, and is preferably arranged as a damping rotation connection, so that the position of the locking piece 500 can be adjusted under the active force operation of the medical staff, and a locking hook is arranged at the other end of the locking piece 500. Correspondingly, a locking column 220 is arranged at a position corresponding to the locking piece 500 on the second scissor body 200, and the locking column 220 is protrudingly arranged and adapted to the locking hook. When the first scissor body 100 and the second scissor body 200 are in a closed state, The handles of the first scissors body 100 and the second scissors body 200 are abutted and closed. At this time, the locking piece 500 can be rotated to combine the lock hook and the lock column 220, so as to achieve locking of the relative positions of the first scissors body 100 and the second scissors body 200. In this embodiment, the setting of the locking piece 500 and the lock column 220 can prevent children from accidentally touching the safety scissors and then opening the first scissors body 100 and the second scissors body 200, further reducing the possibility of contact between the skin of children and the blades. At the same time, medical staff can quickly complete the unlocking when needed, ensuring safety of use while facilitating operation by medical staff.
[0055] In another embodiment of the present invention, Figure 1 and Figure 2As shown, a first guard ring 140 is further provided on the outer side of the handle of the above-mentioned first scissors body 100, and correspondingly, a second guard ring 230 is further provided on the outer side of the handle of the above-mentioned second scissors body 200. The first guard ring 140 and the second guard ring 230 are symmetrically arranged, and in specific arrangements, they can be formed integrally with the first scissors body 100 and the second scissors body 200 respectively. The first guard ring 140 and the second guard ring 230 are used to indicate the position of the medical staff holding the safety scissors, and provide the force application position required when opening the first scissors body 100 and the second scissors body 200, so as to facilitate quick operation by the medical staff. On the other hand, it also has the functions of beautifying the appearance of the safety scissors and facilitating the hanging of the safety scissors.
[0056] Based on the above embodiment, the actual use process of the safety scissors of the utility model is as follows:
[0057] like Figure 1 As shown, when the medical staff needs to cut the medical device, or cut off other strip-shaped or tubular medical devices, the medical staff first rotates the locking member 500 to separate the locking member 500 from the locking column 220 and unlock it, then extends the palm side corresponding to the thumb into the position corresponding to the first guard ring 140 and the handle of the first scissor body 100, and extends the palm side corresponding to the other four fingers into the position corresponding to the second guard ring 230 and the handle of the second scissor body 200, and applies force to open the first scissor body 100 and the second scissor body 200. During the opening process, as shown in FIG. Figure 4 As shown, the second shear body 200 provides a space for the lower end of the trigger rod 400 to make way. Under the action of the elastic force of the tension spring 330, the frame body 310 rotates, and the trigger rod 400 moves to Figure 4 The cutter head 320 moves upward as shown, and the cutter head 320 is hidden in the clearance groove 110;
[0058] At this time, the medical staff makes the second scissors body 200 pass through one side of the medical device to be cut, and makes the first scissors body 100 correspond to the other side of the medical device to be cut, so that the medical device to be cut is located at the predetermined position of the shear handles of the first scissors body 100 and the second scissors body 200, and then actively applies force to make the first scissors body 100 and the second scissors body 200 tend to close. During the process, the second scissors body 200 presses the end of the trigger rod 400, so that the trigger rod 400 drives the frame 310 to rotate, and the position of the blade 320 rotates synchronously, so that the blade 320 enters the positioning groove 210 on the second scissors body 200. At this time, the medical staff pulls the safety scissors to make the blade of the blade 320 come into contact with the medical device to be cut and realize the cutting effect, that is, the cutting operation of the medical device is completed.
[0059] In this embodiment, during the operation of the safety scissors, when the first scissors body 100 and the second scissors body 200 are in an open state, the blade head 320 is hidden in the make way slot 110, and when the first scissors body 100 and the second scissors body 200 are in a closed state, the blade head 320 is rotated out of the make way slot 110 of the first scissors body 100, but due to the blocking of the outer shells of the first scissors body 100 and the second scissors body 200, the possibility of the blade head 320 contacting the patient or other personnel is eliminated. Therefore, the safety scissors of the utility model can achieve the effect of safe operation, and even if it is obtained by a patient with a poor mental state or a history of mental illness, it cannot cause harm to others or suicide.
[0060] Based on the above embodiments, the utility model also provides an anti-injury knife, which includes the safety scissors described in any one of the above embodiments, and the safety scissors include: a first scissors body, the first scissors body is provided with a clearance groove and a clearance hole; a cutting piece, the cutting piece is elastically rotatably connected with the first scissors body, one end of the cutting piece corresponds to the clearance groove, and the other end of the cutting piece is rotatably provided with a trigger rod, and the trigger rod is slidably sleeved in the clearance hole; a second scissors body, the second scissors body is hinged with the first scissors body, and the second scissors body abuts against one end of the trigger rod; the opposite surfaces of the shear handles of the first scissors body and the second scissors body are both planes. The utility model sets a clearance groove at the shear handle of the first scissors body, and elastically installs a cutting piece similar to a seesaw, and sets a trigger rod that passes through the first scissors body on the cutting piece, so that the cutting piece is hidden by elastic force when the scissors are in an open state, and the second scissors body abuts against the trigger rod to move the cutting piece when the scissors tend to be closed, thereby achieving the effect of cutting and cutting, and preventing patients from injuring or committing suicide after obtaining the scissors.
[0061] In summary, the utility model provides a safety scissors and an anti-injury knife, wherein the safety scissors include: a first scissors body, a clearance groove and a clearance hole are provided on the first scissors body; a cutting piece, the cutting piece is elastically rotatably connected to the first scissors body, one end of the cutting piece corresponds to the clearance groove, and the other end of the cutting piece is rotatably provided with a trigger rod, and the trigger rod is slidably sleeved in the clearance hole; a second scissors body, the second scissors body is hinged to the first scissors body, and the second scissors body abuts against one end of the trigger rod; the opposite surfaces of the shear handles of the first scissors body and the second scissors body are both planes. The utility model sets a clearance groove at the shear handle of the first scissors body, and elastically installs a cutting piece similar to a seesaw, and sets a trigger rod that passes through the first scissors body on the cutting piece, so that the cutting piece is hidden by elastic force when the scissors are in an open state, and when the scissors tend to be closed, the second scissors body abuts against the trigger rod to move the cutting piece, thereby achieving the effect of cutting and cutting, and preventing patients from injuring or committing suicide after obtaining the scissors.
[0062] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made according to the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.
Claims
1. A safety scissors, characterized in that: The safety scissors include: A first shear body, wherein the first shear body is provided with a clearance groove and a clearance hole; A cutting piece, wherein the cutting piece is elastically rotatably connected to the first shear body, one end of the cutting piece corresponds to the give-way groove, and the other end of the cutting piece is rotatably provided with a trigger rod, and the trigger rod is slidably sleeved in the give-way hole; a second scissor body, the second scissor body being hinged to the first scissor body, and the second scissor body being in contact with one end of the trigger rod; The opposite surfaces of the shear handles of the first shear body and the second shear body are both planes.
2. The safety scissors according to claim 1, characterized in that: The first scissors body is provided with a mounting groove at a position corresponding to the position between the make way groove and the make way hole, and two ear plates are protrudingly provided at a position corresponding to the mounting groove on the outer side of the first scissors body, and the cutting member is rotatably arranged between the two ear plates in a clamping manner.
3. The safety scissors according to claim 2, characterized in that: The cutting element comprises: A frame, the center of which is rotatably connected to the two ear plates; A cutter head, the cutter head is detachably connected to one end of the frame, and the cutter head is slidably arranged along the clearance groove; A tension spring, one end of which is fixedly connected to an end of the frame away from the cutter head, and the other end of which is fixedly arranged in the mounting groove.
4. The safety scissors according to claim 3, characterized in that: The cutting end of the cutter head is arranged along a predetermined arc; A positioning groove is arranged on the second scissors body at a position corresponding to the giving way groove. When the first scissors body and the second scissors body are closed, the cutting end of the cutter head is located in the positioning groove.
5. The safety scissors according to claim 3, characterized in that: The frame is provided with an assembly groove, a mounting plate is detachably arranged in the assembly groove, and the mounting end of the cutter head is embedded in the assembly groove; A card hole is hollowed out on the mounting end of the cutter head, a tenon is protruded in the assembly groove, the tenon is snap-fitted with the card hole, and the end of the tenon is detachably connected to the mounting plate.
6. The safety scissors according to claim 3, characterized in that: An adjustment hole is arranged on the frame at a position corresponding to the trigger rod, and the adjustment hole is a waist-shaped hole. One end of the trigger rod is rotatably connected to the adjustment hole and is slidably arranged along the adjustment hole.
7. The safety scissors according to claim 3, characterized in that: A groove is arranged on the frame at a position corresponding to the tension spring, one end of the tension spring is fixedly arranged in the groove, and the width of the groove is adapted to the diameter of the tension spring.
8. The safety scissors according to claim 1, characterized in that: A locking piece is rotatably provided at the end of the handle of the first scissor body, one end of the locking piece is connected to the first scissor body for damping rotation, and the other end of the locking piece is provided with a hook lock; A lock column is arranged at the end of the handle of the second scissors body. The lock column is arranged protrudingly, and the hook lock is detachably engaged with the lock column.
9. The safety scissors according to claim 1, characterized in that: A first guard ring is arranged outside the handle of the first scissors body, and a second guard ring is arranged outside the handle of the second scissors body. The first guard ring and the second guard ring are symmetrically arranged.
10. An anti-injury knife, characterized in that: The anti-injury knife comprises the safety scissors described in any one of claims 1-9 above.