Scalp scar incision knife for bone window edge

Abstract

The utility model discloses a scalp scar incision knife for the edge of a bone window, which is divided into an L type and a T type, and each type is divided into two edging directions, namely a clockwise edging direction and an anticlockwise edging direction; the T-shaped scalpel comprises a scalpel handle, a first blade or a second blade, the scalp of a surgical part of a patient is transversely and longitudinally cut open at the same time through the additional arrangement of the first blade or the second blade, and the convenience of medical staff in surgical use is improved; a downward edged blade and an upward edged blade are arranged on the blade side, the skull side blade is edged downwards, periosteum and skull of a patient are separated, the downward blade can prevent the scalp from being too thin, and it is guaranteed that the blade is tightly attached to the surface of the skull to be pushed. The blade in the bone window is edged upwards, so that damage to meninx and brain tissue of a patient caused by the blade can be avoided, the use safety is improved, the situation that medical staff frequently replace tools in the operation process is avoided, and the use difficulty of the medical staff is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of scalp scar incision knife, specifically a scalp scar incision knife for the edge of a bone window. Background Technology

[0002] Secondary head surgery through the original incision usually requires cutting open the scalp scar left from the previous surgery. In cranioplasty, the scalp scar is located at the edge of the bone window. Cutting too deep can easily damage brain tissue, while cutting too shallowly can result in thin scalp, which may lead to exposure of repair materials and implants after surgery. Therefore, a scalpel with an incision depth that cuts through the entire scalp without damaging the dura mater is required during the surgery.

[0003] When performing surgical treatment on scalp scars at the edge of a bone window, a scar excision knife is required to operate on the treatment area. However, existing surgical knives are generally used vertically, only cutting in one vertical direction, and cannot simultaneously perform transverse and longitudinal cuts. Existing surgical knives require the operator to first make a longitudinal cut along the scar area, and then make a transverse cut. Outside the bone window, the space between the periosteum and the skull is cut; inside the bone window, the space between the periosteum and the dura mater is cut. Utility Model Content

[0004] The purpose of this invention is to provide a scalp scar incision knife for the edge of a bone window that can simultaneously cut horizontally and vertically, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a scalp scar incision knife for the edge of a bone window, comprising a handle, a first blade or a second blade, one side of which is connected to one end of the handle; the first blade or the second blade can simultaneously cut the scar on the patient's scalp in both the transverse and longitudinal directions; by adding the first blade or the second blade, it is possible to simultaneously cut the scalp at the surgical site of the patient in both the transverse and longitudinal directions, improving the convenience of use for medical personnel during surgery.

[0006] Preferably, the first blade is an L-shaped blade, which consists of a blade one and a blade two, and the blade one and the blade two form an L-shape. The longitudinal sidewall of the blade one is provided with a cutting edge one in the center, and the transverse sidewall of the blade two is provided with a cutting edge two facing downward. By setting the first blade to an L-shape, it is possible to simultaneously cut open the scalp scars and skull surface adhesions at the edge of the bone window of the patient.

[0007] Preferably, the second blade is a T-shaped blade, which consists of blade three and blade four, and blade three and blade four are installed in a T-shape. Blade three has a downward-facing cutting edge on one side, and blade four has an upward-facing cutting edge on one side. By setting the second blade to a T-shape, it is possible to simultaneously cut open the patient's scalp scars and the adhesions between the skull and periosteum, and between the periosteum and dura mater.

[0008] Preferably, the handle is connected to the first blade or the second blade via a disassembly assembly. The disassembly assembly includes a nut fixedly disposed on one side of the first blade or the second blade. The nut has an internal thread with a bolt. One end of the bolt is fixedly connected to one end of the handle. By adding the nut and the bolt, the installation and disassembly of the handle to the first blade or the second blade can be made convenient.

[0009] Preferably, the end of the second blade away from the second cutting edge is fixedly connected to one side of the first blade, which enables the second blade and the first blade to be installed together to form an L-shaped blade.

[0010] Preferably, the side of the third blade away from the third cutting edge is fixedly connected to one end of the fourth blade, which enables the third blade and the fourth blade to be installed together to form a T-shaped blade.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention optimizes existing scalp scar incision knives for bone window edges by adding a first or second blade. This allows for simultaneous horizontal and vertical incisions of the scalp at the surgical site, improving the ease of use for medical personnel. The blades, the second and third, have downward and upward blades respectively, enabling separation of the periosteum and skull. The downward blade prevents the scalp from becoming too thin, ensuring the blade remains close to the skull surface during insertion. The upward blade inside the bone window avoids damage to the meninges and brain tissue, effectively improving safety and reducing the need for frequent tool changes during surgery, thus simplifying the procedure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the L-shaped blade in this utility model;

[0014] Figure 2 This is a schematic diagram of the structure in this utility model where the first blade is separated from the handle;

[0015] Figure 3 This is a schematic diagram of the T-shaped blade in this utility model;

[0016] Figure 4This is a schematic diagram of the separation between the T-shaped blade and the handle in this utility model.

[0017] In the diagram: 1. Handle; 2. First blade; 3. Second blade; 4. Blade 1; 5. Blade 2; 6. Blade 1; 7. Blade 2; 8. Nut; 9. Blade 3; 10. Blade 4; 11. Blade 3; 12. Bolt; 13. Blade 4. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1

[0020] Please see Figures 1-4 The illustration shows a scalp scar incision knife for the edge of a bone window, including a handle 1 and a first blade 2 or a second blade 3. One side of the first blade 2 or the second blade 3 is connected to one end of the handle 1. The first blade 2 or the second blade 3 can simultaneously cut the scar on the patient's scalp in both the transverse and longitudinal directions.

[0021] Please see Figure 1 and Figure 2 The first blade 2 in the figure is an L-shaped blade. The first blade 2 is composed of blade 4 and blade 5, and blade 4 and blade 5 form an L-shape. Blade 6 is provided in the center of the longitudinal side wall of blade 4, and blade 7 is provided downward on the transverse side wall of blade 5.

[0022] Please see Figure 1 and Figure 2 In the diagram, the end of blade 2 5 away from blade 2 7 is fixedly connected to one side of blade 1 4.

[0023] When using the L-shaped blade of the scalp scar incision knife at the edge of the bone window: the medical staff holds the handle 1 and removes the bulge at the patient's scar location. At this time, the blade 7 at one end of the horizontally set blade 2 5 removes the bulge at the patient's scar location. After the bulge is removed, the blade 6 on the side wall of the vertically set blade 4 cuts it open, thus achieving an incision in the patient's scalp. When the scar is removed to the depth of the periosteum, the medical staff rotates the handle 1, causing the first blade 2 to rotate. This allows the un-edged parts on both sides of the blade 2 5 to contact the periosteum and skull of the patient's head, avoiding damage to the meninges and brain tissue caused by the blade 7 on one side of the blade 2 5. This increases the safety of the patient and avoids the inconvenience caused by the patient frequently changing tools during the operation, effectively improving the convenience of operation for the staff.

[0024] Example 2

[0025] Please see Figures 1-4 This embodiment further illustrates Example 1. In the figure, the handle 1, the first blade 2 or the second blade 3 are connected to one end of the handle 1 on one side; the first blade 2 or the second blade 3 can simultaneously cut the scar on the patient's scalp in both the transverse and longitudinal directions.

[0026] Please see Figure 3 and Figure 4 The second blade 3 in the figure is a T-shaped blade. The second blade 3 is composed of blade 3 9 and blade 4 10, and blade 3 9 and blade 4 10 are installed in a T-shape. Blade 3 9 has a downward-facing cutting edge 3 11 on one side, and blade 4 10 has an upward-facing cutting edge 4 13 on one side.

[0027] Please see Figure 3 and Figure 4 In the diagram, the side of blade 39 away from blade 311 is fixedly connected to one end of blade 410.

[0028] In this implementation scheme, when using the T-shaped blade of the scalp scar incision knife at the edge of the bone window, the medical staff can hold the handle 1 on one side of the second blade 3, and then bring the third blade 9 and the fourth blade 10 into contact with the patient's surgical site. Moving the handle will move the third blade 9 and the fourth blade 10. At this time, the third blade 9 can perform a transverse excision of the bulge at the scar location on the patient's head. Because the cutting edge 4 13 on the fourth blade 10 is set perpendicular to the third blade 9 during installation, the fourth blade 10 simultaneously performs a transverse excision of the bulge by the third blade 9 and the fourth blade 10... The procedure involves making a longitudinal incision at the site of the scar surgery. This operation allows for simultaneous transverse and longitudinal incisions at the patient's scar surgical site, effectively improving the ease of use for medical staff and avoiding frequent tool changes. The scalp is incised, and once the scar is removed to the depth of the periosteum, the medical staff rotates the handle 1, causing the second blade 3 to rotate. This allows the unsharpened ends of the blade 3 9 to separate the periosteum and skull from the patient's head, preventing damage to the meninges and brain tissue from the blade 3 11 and increasing patient safety.

[0029] Example 3

[0030] Please see Figures 1-4 This embodiment further illustrates other embodiments. In the figure, the handle 1, the first blade 2 or the second blade 3 are all connected to one end of the handle 1 on one side. The first blade 2 or the second blade 3 can simultaneously cut the scar on the patient's scalp in both the horizontal and vertical directions.

[0031] Please see Figures 1-4 The knife handle 1 in the figure is connected to the first blade 2 or the second blade 3 by a disassembly and assembly assembly. The disassembly and assembly assembly includes a nut 8 fixedly disposed on one side of the first blade 2 or the second blade 3. The internal thread of the nut 8 is provided with a bolt 12, and one end of the bolt 12 is fixedly connected to one end of the knife handle 1.

[0032] In this embodiment, one end of the handle 1 is connected to the first blade 2 or the second blade 3 via bolt 12 and nut 8. This facilitates the installation and disassembly of the handle 1 and the first blade 2 or the second blade 3, making it convenient for workers to install and use. At the same time, when the first blade 2 or the second blade 3 is damaged, it can be removed from the handle 1 and replaced with a new, intact first blade 2 or the second blade 3, avoiding the need to discard the handle 1 when the first blade 2 or the second blade 3 is damaged. This effectively reduces costs and improves the ease of disassembly and reassembly between the handle 1 and the first blade 2 or the second blade 3.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A scalpel for cutting scalp scars at the edge of a bone window, characterized in that, include: Handle (1); The first blade (2) or the second blade (3) is connected to one end of the handle (1) on one side. The first blade (2) or the second blade (3) can simultaneously cut the scar on the patient's scalp in both the transverse and longitudinal directions; The first blade (2) is an L-shaped blade. The first blade (2) is composed of blade one (4) and blade two (5), and blade one (4) and blade two (5) form an L-shape. Blade one (6) is provided in the center of the longitudinal sidewall of blade one (4), and blade two (7) is provided downward on the transverse sidewall of blade two (5).

2. The scalp scar incision knife for the edge of a bone window according to claim 1, characterized in that, The second blade (3) is a T-shaped blade. The second blade (3) is composed of blade three (9) and blade four (10), and blade three (9) and blade four (10) are installed in a T-shape. Blade three (9) has a downward-facing cutting edge three (11) on one side, and blade four (10) has an upward-facing cutting edge four (13) on one side.

3. The scalp scar incision knife for the edge of a bone window according to claim 1, characterized in that, The handle (1) is connected to the first blade (2) or the second blade (3) via a disassembly assembly. The disassembly assembly includes a nut (8) fixedly disposed on one side of the first blade (2) or the second blade (3). The nut (8) has a bolt (12) on its internal thread. One end of the bolt (12) is fixedly connected to one end of the handle (1).

4. The scalp scar incision knife for the edge of a bone window according to claim 1, characterized in that, The end of the second blade (5) away from the second blade (7) is fixedly connected to one side of the first blade (4).

5. A scalpel for cutting scalp scars at the edge of a bone window according to claim 2, characterized in that, The side of the third blade (9) away from the third blade (11) is fixedly connected to one end of the fourth blade (10).

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