Stitch scissors
By designing a cross-connected thread removal shear with blunt ends, the problem of easy scratching of the thread removal shear tip in the prior art is solved, and the safety and durability of the thread removal shear are improved.
Patent Information
- Application Number
- CN202420119432.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-17
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-01-17
AI Technical Summary
The tips of existing thread removal cuts are prone to scratch patients and medical staff, and are prone to damage during the thread removal process.
A thread removal shear is designed including a first scissor piece and a second scissor piece that intersect and rotate with each other. The blade end of the first scissor piece is a blunt end, extending beyond the blade end of the second scissor piece to avoid tip contact.
It effectively prevents patients and medical staff from being scratched by the tip during the removal of the thread, and prevents scissors from being damaged through the blunt end.
Smart Images
Figure CN222657102U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical devices, and in particular to a pair of suture removers. Background Art
[0002] After performing oral and maxillofacial surgery on a patient, the doctor needs to suture the wound to promote the growth and healing of the incision. Generally, when removing the stitches, the mucosa in the mouth will be swollen to varying degrees, and the sutures will be embedded under the swollen oral mucosa. When removing the stitches, the doctor needs to lift the thread with tweezers, and then insert one end of the suture removal scissors under the suture to cut the suture. When the thread head is lifted with tweezers, the patient will feel pain, and it is very easy to damage the wound edge due to pulling the suture. When the scissors are inserted under the suture to cut the suture, it is easy for the tip of the scissors head to pierce the patient's gums, causing gum damage and bleeding.
[0003] At present, the double-blade suture removal scissors commonly used in clinical practice have sharp tips, which can easily scratch the patient's skin during the suture removal process, and medical staff can also be easily scratched by the tips of the suture removal scissors. When the suture removal scissors fall to the ground, their sharp tips can easily break and be damaged. Utility Model Content
[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a suture removing scissors that can prevent patients and medical staff from being scratched by the sharp tips.
[0005] The stitch removing scissors disclosed in the present invention comprise a first scissor piece and a second scissor piece which are crossed and rotatably connected to each other; the first scissor piece and the second scissor piece extend relative to both sides of a rotation point to form a handle and a blade respectively, and the blade end of the first scissor piece is a blunt end and exceeds the blade end of the second scissor piece.
[0006] In one embodiment of the present disclosure, the blade end of the first scissors piece of the present disclosure is spherical, hemispherical or ellipsoidal.
[0007] In one embodiment of the present disclosure, the blade thickness of the first scissors piece of the present disclosure is greater than the blade thickness of the second scissors piece.
[0008] In one embodiment of the present disclosure, when the blades of the first and second scissors pieces of the present disclosure are closed, the back edge of the first scissors piece exceeds the blade edge of the second scissors piece; the back edge of the second scissors piece exceeds the blade edge of the first scissors piece, wherein the blade edge is located on the shearing surface, and the back edge of the blade is located on the surface opposite to the shearing surface.
[0009] In one embodiment of the present disclosure, the blade back of the first scissors piece of the present disclosure is a smooth curved surface, wherein the blade back is a surface arranged opposite to the shearing surface.
[0010] In one embodiment of the present disclosure, the cross-sectional projection of the blade back of the second scissors piece of the present disclosure is a continuously arranged arc and straight line segment.
[0011] In one embodiment of the present disclosure, the blunt end of the first scissors piece of the present disclosure extends beyond the blade end of the second scissors piece by 1-2 mm.
[0012] In one embodiment of the present disclosure, the radius of the blunt tip of the present disclosure is 0.6-1 mm.
[0013] In one embodiment of the present disclosure, the stitch ripping scissors of the present disclosure further include a rotating shaft, and the rotating shaft is arranged at the rotating point so that the first scissors piece and the second scissors piece rotate relative to the rotating shaft.
[0014] In one embodiment of the present disclosure, the length of the blade portion of the first scissors piece and the second scissors piece of the present disclosure is 30-40 mm.
[0015] One beneficial effect of the suture removal scissors disclosed in the present invention is that the oral mucosa will present different degrees of swelling when removing sutures. Sutures are usually embedded under the swollen oral mucosa, with less exposed ends, and it is difficult to cut the sutures directly using the suture removal scissors. In the prior art, tweezers are used to clamp the sutures, which will cause pain to the patient and damage the wound edge due to pulling the sutures. The suture removal scissors disclosed in the present invention use the blunt end to press against the swollen oral mucosa, so that the sutures can be exposed from under the swollen oral mucosa, which is convenient for removing and cutting sutures, and can effectively avoid pulling the sutures, causing pain to the patient and damaging the wound edge. In addition, the suture removal scissors change the blade end of the first scissors piece from a sharp end to a blunt end, and the blunt end exceeds the blade end of the second scissors piece. During the suture removal process, the blunt end contacts the patient's gums and the skin of the medical staff, avoiding the blade end of the second scissors piece from hurting the patient and the medical staff.
[0016] When the stitch cutters are not in use, that is, when the first scissors member and the second scissors member are closed, the blunt end completely covers the blade of the second scissors member, and the blade of the second scissors member is not exposed. When the stitch cutters fall to the ground, the blunt end contacts the ground, thereby preventing the blade end of the second scissors member from being broken or damaged. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0018] Figure 1 is a structural schematic diagram of a stitch ripping shear provided in an embodiment of the present disclosure;
[0019] Figure 2 It is a structural schematic diagram of the end of the blade of the stitch-removing scissors provided in one embodiment of the present disclosure;
[0020] Figure 3 It is a cross-sectional schematic diagram of the end of a stitch-removing scissors blade provided by an embodiment of the present disclosure.
[0021] Figures 1 to 3 The one-to-one correspondence between the component names and the figure marks is as follows: 1-first scissors member; 11-blade end of the first scissors member; 2-second scissors member; 21-blade end of the second scissors member; 3-rotating shaft; 4-handle. DETAILED DESCRIPTION
[0022] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless otherwise specifically stated.
[0023] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.
[0024] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.
[0025] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.
[0026] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0027] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.
[0028] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the premise of each other's existence.
[0029] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.
[0030] In the process of removing stitches, the tip of the existing stitch remover is easy to scratch the patient and medical staff. The present invention provides a stitch remover that prevents the patient and medical staff from being scratched by the tip. Figures 1 to 3, the specific structure and working principle of the stitch removing shears disclosed in the present invention are explained in detail in combination with an embodiment.
[0031] Combination Figure 1 In one embodiment, the stitch cutting scissors disclosed herein include a first scissors piece 1 and a second scissors piece 2, wherein the first scissors piece 1 and the second scissors piece 2 are intertwined and rotationally connected with each other; the first scissors piece 1 and the second scissors piece 2 extend relatively to both sides of the rotation point to form a handle 4 and a blade respectively; the blade end 11 of the first scissors piece is a blunt end and exceeds the blade end 21 of the second scissors piece.
[0032] Specifically, the blade end 11 of the first scissors piece is a blunt end, and even if it contacts the patient's oral cavity and the skin of medical staff, it will not cause harm to the patient and medical staff. In addition, since the mucous membrane in the oral cavity will show different degrees of swelling when the sutures are removed, the suture is embedded under the swollen oral mucosa, and the blunt end is used to press against the swollen oral mucosa position, so that the suture can be exposed from under the swollen oral mucosa, which is convenient for removing and cutting the sutures. Compared with the prior art of clamping the sutures with tweezers, it can effectively avoid pulling the sutures, causing pain to the patient and damaging the wound edge. Usually, the first scissors piece 1 and the second scissors piece 2 can be made of stainless steel, which has high strength, is easy to clean, and has stable properties. The handle 4 and the blade can be an integrally formed casting, and the production cost is low.
[0033] In one embodiment, the blade end 11 of the first scissors member of the present disclosure is spherical, hemispherical or ellipsoidal.
[0034] Specifically, the spherical, hemispherical or ellipsoidal structure is stable, so that the force on each point of the blade end 11 of the first scissors member is evenly distributed, and when the stitch remover falls to the ground, the blade end 11 of the first scissors member will not be easily damaged due to the huge impact force. In addition, when the spherical, hemispherical or ellipsoidal structure contacts the patient's oral tissue, the pressure on the oral tissue is small, and it will not cause pain to the patient.
[0035] In one embodiment, the blade thickness of the first scissors piece 1 of the present disclosure is greater than the blade thickness of the second scissors piece 2 .
[0036] Specifically, the blade thickness is the distance of the blade in the vertical direction of the shearing surface, and the blade thickness has an impact on the strength of the blade. Since the blade end 11 of the first scissors piece is a blunt end and exceeds the blade end 21 of the second scissors piece, when the stitch remover falls to the ground, only the first scissors piece 1 is in contact with the ground, so the blade thickness of the first scissors piece 1 is set to be greater than the blade thickness of the second scissors piece 2, which strengthens the blade strength of the first scissors piece 1 and makes the blade less likely to deform. The blade thickness also affects the cutting efficiency of the stitch remover for sutures. Normally, during the stitch removal process, the first scissors piece 1 is pressed against the patient's oral mucosa, and the second scissors piece 2 is moved to complete the cutting of the sutures. Therefore, the second scissors piece 2 is set thinner than the first scissors piece 1, which improves the cutting efficiency of the stitch remover for sutures and can cut the sutures more easily.
[0037] In one embodiment, when the blades of the first scissors piece 1 and the second scissors piece 2 of the present disclosure are closed, the back edge of the first scissors piece 1 exceeds the blade edge of the second scissors piece 2; the back edge of the second scissors piece 2 exceeds the blade edge of the first scissors piece 1, wherein the blade edge is located on the shearing surface, and the back edge of the blade is located on the surface opposite to the shearing surface.
[0038] Specifically, the shearing surface is the plane that the blades of the first scissors piece 1 and the second scissors piece 2 contact when they are closed. The edge of the back of the first scissors piece 1 exceeds the edge of the blade of the second scissors piece 2, and the edge of the back of the second scissors piece 2 exceeds the edge of the blade of the first scissors piece 1, so that when the blades of the first scissors piece 1 and the second scissors piece 2 are closed, the blades are not exposed. When medical staff use the stitch removing scissors, even if they touch the stitch removing scissors from the blade, they will first touch the back of the blade and not the edge of the blade, which improves the safety of the stitch removing scissors.
[0039] In one embodiment, the blade back of the first scissors member 1 of the present disclosure is a smooth curved surface, wherein the blade back is a surface arranged opposite to the shearing surface.
[0040] Specifically, usually, when the medical staff passes the stitch removing scissors, the four fingers are bent, the joints are in contact with the back of the first scissors component 1, and the thumb presses the back of the second scissors component 2. Therefore, the back of the first scissors component 1 is set as a smooth curved surface, which can fit the joints of the four fingers of the medical staff, making it convenient for the medical staff to hold the stitch removing scissors steadily without scratching their hands.
[0041] In one embodiment, the cross-sectional projection of the blade back of the second scissors member 2 of the present disclosure is a continuously arranged arc and straight line segment.
[0042] Specifically, the cross-sectional projection of the blade back of the second scissor member 2 is a continuously arranged arc and straight line segment, that is, the blade back of the second scissor member 2 is composed of a curved surface and a flat surface. The second scissor member 2 plays a major cutting role in the process of cutting the suture, and the flat surface of the blade back intersects with the shearing surface to form a sharp blade edge to complete the cutting. The curved surface can effectively prevent scratches on the hands.
[0043] In one embodiment, the blunt end of the first scissors element 1 of the present disclosure extends beyond the blade end 21 of the second scissors element by 1-2 mm.
[0044] Specifically, the distance that the blunt end of the first scissors piece 1 exceeds the blade end 21 of the second scissors piece should not be too much. While protecting the blade end, the optimal distance that the blunt end of the first scissors piece 1 exceeds is 1-2 mm. On the one hand, the inconsistent lengths of the first scissors piece 1 and the second scissors piece 2 will affect the use experience of medical staff. Too large a length difference will increase the difficulty of using the stitch removal scissors and limit the use scenarios. On the other hand, it can reduce materials.
[0045] In one embodiment, the blunt tip radius of the present disclosure is 0.6-1 mm.
[0046] Specifically, since the main application scenario of the suture removal scissors disclosed in the present invention is in the oral cavity, the use space is limited, and the blunt end portion usually has to abut against the oral mucosa, so the radius of the blunt end portion is optimally 0.6-1 mm.
[0047] In one embodiment, the stitch ripping scissors of the present disclosure further include a rotating shaft 3 , wherein the rotating shaft 3 is disposed at a rotating point so that the first scissor piece 1 and the second scissor piece 2 can rotate relative to the rotating shaft 3 .
[0048] Specifically, the rotation point is located at the position where the first scissor piece 1 and the second scissor piece 2 are cross-connected. The rotating shaft 3 not only realizes the rotation of the first scissor piece 1 and the second scissor piece 2 relative to the rotating shaft 3, but also plays a role in fixing the first scissor piece 1 and the second scissor piece 2 to prevent the first scissor piece 1 and the second scissor piece 2 from falling off.
[0049] In one embodiment, the length of the blade portion of the first scissors member 1 and the second scissors member 2 of the present disclosure is 30-40 mm.
[0050] Specifically, since the main application scenario of the suture removal scissors disclosed in the present invention is in the oral cavity, the use space is limited, and the 30-40 mm blade length fully meets the use requirements.
[0051] The working process of the stitch removing shears disclosed in the present invention is described in detail below in conjunction with actual working scenarios.
[0052] First, separate the handle 4, open the suture remover, reach into the patient's mouth, and find the suture position; insert the blunt end of the first scissors piece 1 into the lower part of the suture, abutting against the patient's oral mucosa, so that more of the suture is exposed from the swollen area; press and merge the handle 4, the suture remover is closed, the second scissors piece 2 contacts the suture and squeezes it to the first scissors piece 1 to complete the cutting; take out the suture remover.
[0053] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the marketplace, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.
Claims
1. A stitch ripping scissors, characterized in that: The stitch ripping scissors comprise a first scissor piece (1) and a second scissor piece (2) which are intersected and rotatably connected to each other; the first scissor piece (1) and the second scissor piece (2) extend oppositely to each other on both sides of a rotation point to form a handle (4) and a blade respectively, and the blade end (11) of the first scissor piece is a blunt end and extends beyond the blade end (21) of the second scissor piece; The blade thickness of the first scissors piece (1) is greater than the blade thickness of the second scissors piece (2).
2. The stitch ripper according to claim 1, characterized in that: The blade end (11) of the first scissors element is spherical, hemispherical or ellipsoidal.
3. The stitch ripper according to claim 1 or 2, characterized in that: When the blades of the first scissors piece (1) and the second scissors piece (2) are closed, the back edge of the first scissors piece (1) exceeds the blade edge of the second scissors piece (2); the back edge of the second scissors piece (2) exceeds the blade edge of the first scissors piece (1), wherein the blade edge is located on a shearing surface and the back edge of the blade is located on a surface arranged opposite to the shearing surface.
4. The stitch ripper according to claim 3, characterized in that: The blade back of the first scissors element (1) is a smooth curved surface, wherein the blade back is a surface arranged opposite to the shearing surface.
5. The stitch ripper according to claim 4, characterized in that: The cross-sectional projection of the blade back of the second scissors piece (2) is a continuously arranged arc and straight line segment.
6. The stitch ripper according to claim 5, characterized in that: The blunt end of the first scissors piece (1) extends beyond the blade end (21) of the second scissors piece by 1-2 mm.
7. The stitch ripper according to claim 6, characterized in that: The radius of the blunt end portion is 0.6-1 mm.
8. The stitch ripper according to claim 7, characterized in that: The stitch ripping scissors further comprise a rotating shaft (3), wherein the rotating shaft (3) is arranged at the rotating point so that the first scissor piece (1) and the second scissor piece (2) can rotate relative to the rotating shaft (3).
9. The stitch ripper according to claim 8, characterized in that: The length of the blade portions of the first scissor piece (1) and the second scissor piece (2) is 30-40 mm.