Visual surgical knife handle with adjusting structure

Abstract

The utility model relates to the technical field of medical instruments, in particular to a visual surgical knife handle with an adjusting structure, which comprises a handle, a sliding block, a connecting plate, a clamping plate, a third guide rod and the like. The handle is hollow, a sliding block is slidably arranged in an inner cavity of the handle, a connecting plate and a clamping plate are parallelly arranged at one end of the sliding block, the clamping plate extends into the sliding block to be embedded and slidably connected with a third guide rod arranged in the inner cavity of the sliding block, and a third spring is wound on the third guide rod. A T-shaped block drives an ejector block to move downwards along a second guide rod and compress a second spring, the ejector block extrudes a clamping plate to enable the clamping plate to slide in the direction away from a connecting plate along a third guide rod, a third spring is compressed, the clamping plate is away from the connecting plate, and at the moment, a blade can be conveniently installed on a protrusion of the connecting plate or taken away from the protrusion of the connecting plate.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a visual surgical knife handle with an adjusting structure. Background Art

[0002] A scalpel is a very widely used surgical instrument, which is generally used for cutting and dissecting tissues. The conventional structure of a scalpel consists of a detachable surgical blade and a surgical knife handle. When in use, the surgical blade is installed and fixed on the surgical knife handle.

[0003] The utility model with the publication number CN215994156U discloses a knife handle for surgery. The knife handle includes a handle with a hollow cavity inside. A first push rod is arranged in the cavity and can reciprocate in the cavity so that one end of the push rod can extend to the end of the handle. The extendable end of the first push rod is detachably assembled with a surgical blade. The first push rod is also provided with an elastic element and can automatically return under the pulling force or elastic force of the elastic element. The utility model solves the problem that the conventional knife handle for surgery cannot achieve length adjustment, effectively realizes the automatic recovery of the blade, and on the basis of the recovery function, the length of the knife handle can be freely adjusted according to the use requirements, so as to effectively realize the use scenarios of a single blade with multiple lengths.

[0004] However, the installation of the surgical blade and the knife handle still adopts the traditional method. That is, when installing the surgical blade, usually use a hemostatic forceps (or a needle holder) to clamp the dorsal side of the front end of the blade, align the notch of the blade with the groove of the knife handle, and then smoothly insert the notch of the blade into the groove of the knife handle. When disassembling the surgical blade, first use a hemostatic forceps (or a needle holder) to clamp the dorsal side of the tail end of the blade, gently lift it upward to separate the blade from the groove of the knife handle, and then push the blade away from the knife handle with a little more force. This method of blade installation and disassembly requires the use of a hemostatic forceps (or a needle holder) to clamp the blade to install the blade on the knife handle or disassemble the blade from the knife handle, which has the defect of inconvenient installation and disassembly.

[0005] Based on this, it is necessary to design a visual surgical knife handle with an adjusting structure that is convenient for installing and disassembling the blade. Summary of the Utility Model

[0006] The technical implementation solution of the present utility model is as follows: A visual surgical knife handle with an adjustment structure, including a handle, a sliding block, a connecting plate, a clamping plate, a third guiding rod, a third spring and a blade. The handle is hollowly arranged, and a sliding block is slidably arranged in the inner cavity of the handle. One end of the sliding block is provided with a connecting plate and a clamping plate side by side. The clamping plate extends into the sliding block and is slidably connected with a third guiding rod arranged in the inner cavity of the sliding block. A third spring is wound around the third guiding rod, and the third spring is arranged between the clamping plate and the inner wall of the sliding block. A protrusion adapted to an installation hole opened on the blade is arranged on the side of the connecting plate facing the clamping plate, and the blade is installed on the protrusion of the connecting plate. The clamping plate fits with the connecting plate to fix the blade on the protrusion of the connecting plate.

[0007] More preferably, it further includes a top block and a T-shaped block. A top block that is extrusion-fitted with the inclined surface end of the clamping plate extending into the inner cavity of the sliding block is arranged in the inner cavity of the sliding block. The top block is slidably arranged in the inner cavity of the sliding block. One side of the top block is connected with a T-shaped block, and the T-shaped block slides through the sliding block and slides along a guiding groove opened on one longitudinal side of the handle.

[0008] More preferably, it further includes a second guiding rod and a second spring. The end of the top block away from the clamping plate is slidably connected with a second guiding rod arranged in the sliding block, and a second spring is arranged between the top block and the end of the second guiding rod. The second spring is wound around the second guiding rod.

[0009] More preferably, a limiting block for effectively connecting the clamping plate and the top block is arranged on the side of the top block facing the clamping plate.

[0010] More preferably, it further includes a first guiding rod, a clamping block and a first spring. Slots are opened on both sides in the length direction of the handle. Clamping blocks are slidably connected to both sides of the sliding block that are slidably connected to the side wall with the slots through first guiding rods. A first spring is arranged between the clamping blocks and the sliding block. The first spring is wound around the first guiding rod, and the clamping blocks are clamped and matched with the slots.

[0011] More preferably, the length value of the T-shaped block located outside the sliding block is less than the depth value of the guiding groove.

[0012] Compared with the prior art, the present utility model has the following advantages: By driving the top block to move downward along the second guiding rod through the T-shaped block and compressing the second spring, the top block squeezes the clamping plate, so that the clamping plate slides along the third guiding rod in a direction away from the connecting plate and compresses the third spring. The clamping plate is away from the connecting plate. At this time, the blade can be conveniently installed on the protrusion of the connecting plate or taken away from the protrusion of the connecting plate, thereby realizing the convenient installation and disassembly of the blade. Description of the Drawings

[0013] Figure 1 It is a first perspective three-dimensional structural schematic diagram of the present utility model.

[0014] Figure 2 This is a partial sectional three-dimensional structure diagram of the handle and the sliding block of the present utility model.

[0015] Figure 3 This is a partial three-dimensional structure diagram of the separation state of the top block and the clamping plate of the present utility model.

[0016] Figure 4 This is a three-dimensional structure diagram of the first guide rod, the first spring and the clamping block of the present utility model.

[0017] Figure 5 This is a three-dimensional structure diagram of the second perspective of the present utility model.

[0018] The markings of each component in the attached drawings are as follows: 1. Handle, 100. Sliding block, 101. First guide rod, 2. Card slot, 3. Clamping block, 4. Connecting plate, 5. First spring, 6. Second guide rod, 7. Second spring, 8. Top block, 9. Limit block, 10. Clamping plate, 11. Third guide rod, 12. Third spring, 13. T-shaped block, 131. Guide groove, 15. Blade. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present utility model will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment: A visual surgical knife handle with an adjustment structure, as Figure 1 and Figure 2 shown, includes a handle 1, a sliding block 100, a connecting plate 4, a clamping plate 10, a third guide rod 11, a third spring 12 and a blade 15. The handle 1 is hollow, and a sliding block 100 is slidably arranged in the inner cavity of the handle 1. A connecting plate 4 and a clamping plate 10 are arranged side by side at the upper end of the sliding block 100. Among them, the clamping plate 10 extends into the sliding block 100 and is slidably connected to the third guide rod 11 arranged in the inner cavity of the sliding block 100. The third guide rod 11 slidably passes through the lower part of the clamping plate 10. The left side of the lower part of the clamping plate 10 is provided with a triangular convex block. A third spring 12 is wound around the third guide rod 11. The third spring 12 is arranged between the clamping plate 10 and the inner wall of the sliding block 100. A protrusion adapted to the mounting hole opened on the blade 15 is arranged on the side of the connecting plate 4 facing the clamping plate 10. The blade 15 is mounted on the protrusion of the connecting plate 4. The protrusion is quadrilateral. This setting can facilitate the installation of the blade 15 and at the same time prevent the blade 15 from rotating during use. The clamping plate 10 and the connecting plate 4 are attached to fix the blade 15 on the protrusion of the connecting plate 4.

[0021] AsFigure 3 and Figure 5 As shown, it further includes a top block 8 and a T-shaped block 13. Inside the cavity of the sliding block 100, there is a top block 8 that is in extrusion fit with the inclined surface end of the clamping plate 10 that deeply penetrates into the cavity of the sliding block 100. The front and rear sides of the top of the top block 8 are provided with convex blocks with triangular inclined surfaces. The convex blocks with triangular inclined surfaces are in extrusion fit with the triangular convex block on the lower left side of the clamping plate 10. The top block 8 is slidably arranged inside the cavity of the sliding block 100. One side of the top block 8 is connected to a T-shaped block 13. The T-shaped block 13 slidably passes through the sliding block 100 and slides along a guiding groove 131 opened on one longitudinal side of the handle 1. The length value of the T-shaped block 13 located outside the sliding block 100 is less than the depth value of the guiding groove 131, so as to avoid the T-shaped block 13 affecting the operation of the handle 1 by the operator. On the side of the top block 8 facing the clamping plate 10, there is a limiting block 9 for effectively connecting the clamping plate 10 and the top block 8. Through the limiting block 9, the top block 8 and the clamping plate 10 are effectively connected together, so that the clamping plate 10 fits with the protrusion of the connecting plate 4, thereby limiting the blade 15.

[0022] As Figure 2 and Figure 3 shown, it further includes a second guiding rod 6 and a second spring 7. One end of the top block 8 away from the clamping plate 10 is slidably connected to the second guiding rod 6 arranged inside the sliding block 100. A second spring 7 is arranged between the top block 8 and the end of the second guiding rod 6. The second spring 7 is wound around the second guiding rod 6. When the top block 8 receives a downward acting force, the top block 8 moves downward along the second guiding rod 6 and compresses the second spring 7.

[0023] As Figure 1 、 Figure 2 and Figure 4 shown, it further includes a first guiding rod 101, a clamping block 3 and a first spring 5. On both sides in the length direction of the handle 1, there are card slots 2 opened. The card slots 2 are horizontally arranged. The card slots 2 in the length direction of the handle 1 are in a communicating state. On both sides of the sliding block 100 that are slidably connected to the side wall where the card slots 2 are opened, there are clamping blocks 3 slidably connected through the first guiding rod 101. The clamping blocks 3 can slide up and down along a longitudinal through slot communicating with the card slots 2. A first spring 5 is arranged between the clamping blocks 3 and the sliding block 100. The first spring 5 is wound around the first guiding rod 101. The clamping blocks 3 are in clamping fit with the card slots 2.

[0024] In use, by pulling down the T-shaped block 13, the T-shaped block 13 drives the top block 8 to move downward along the second guide rod 6. The limit block 9 moves downward away from the clamping plate 10, and the second spring 7 is compressed, thereby releasing the limit on the clamping plate 10. As the top block 8 moves downward, the triangular inclined blocks on both sides of the top of the top block 8 squeeze the triangular convex blocks on both sides of the bottom of the clamping plate 10, thereby causing the clamping plate 10 to move horizontally along the third guide rod 11, and the third spring 12 is compressed, so that the clamping plate 10 moves away from the connecting plate 4. At this time, the blade 15 can be installed on the protrusion of the connecting plate 4. Subsequently, the pulling force on the T-shaped block 13 is released. Under the action of the elastic force of the second spring 7, the second spring 7 resets, and the top block 8 slides upward and resets. The triangular inclined blocks on both sides of the top block 8 gradually move away from the triangular convex blocks on both sides of the bottom of the clamping plate 10, thereby releasing the squeezing force on the clamping plate 10. Under the action of the elastic force of the third spring 12, the third spring 12 resets, and the clamping plate 10 slides along the third guide rod 11 and resets in the direction of the connecting plate 4, thereby fixing the blade 15 on the protrusion of the connecting plate 4, and the convenient disassembly and installation of the blade 15 can be realized; by pressing the clamping blocks 3 on both sides of the sliding block 100, the clamping blocks 3 move along the first guide rod 101 in the direction of the sliding block 100, the clamping blocks 3 move away from the inside of the card slot 2, and the first spring 5 is compressed, thereby releasing the limit on the sliding block 100. At this time, the sliding block 100 can be driven by the clamping blocks 3 to slide inside the handle 1, so as to adjust the specific position of the sliding block 100 inside the handle 1 as needed, thereby adjusting the length of the blade 15 extending out of the handle 1, and realizing placing the blade 15 inside the handle 1 or adjusting the length of the blade 15 extending out of the outside of the handle 1 according to the needs of use or storage.

[0025] Although the present disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art should understand that various changes in form and detail may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above embodiments, but should be determined not only by the appended claims but also by the equivalents of the appended claims.

Claims

1. A visual surgical knife handle with an adjusting structure, comprising a handle (1) and a sliding block (100). The handle (1) is hollow, and the sliding block (100) is slidably arranged in the inner cavity of the handle (1). It is characterized in that, It further includes a connecting plate (4), a clamping plate (10), a third guide rod (11), a third spring (12) and a blade (15). A connecting plate (4) and a clamping plate (10) are arranged in parallel at one end of the sliding block (100). The clamping plate (10) extends into the sliding block (100) and is in sliding connection with a third guide rod (11) arranged in the inner cavity of the sliding block (100). A third spring (12) is wound around the third guide rod (11), and the third spring (12) is arranged between the clamping plate (10) and the inner wall of the sliding block (100). A protrusion adapted to the mounting hole formed on the blade (15) is arranged on the side of the connecting plate (4) facing the clamping plate (10). The blade (15) is mounted on the protrusion of the connecting plate (4), and the clamping plate (10) is attached to the connecting plate (4) to fix the blade (15) on the protrusion of the connecting plate (4).

2. The visual surgical knife handle with an adjustment structure according to claim 1, characterized in that, It further includes a top block (8) and a T-shaped block (13). A top block (8) that is in extrusion fit with the inclined surface end of the clamping plate (10) extending into the inner cavity of the sliding block (100) is arranged in the inner cavity of the sliding block (100). The top block (8) is slidably arranged in the inner cavity of the sliding block (100). A T-shaped block (13) is connected to one side of the top block (8). The T-shaped block (13) slides through the sliding block (100) and slides along a guide groove (131) formed on the longitudinal side of the handle (1).

3. The visual surgical knife handle with an adjustment structure according to claim 2, characterized in that, It further includes a second guide rod (6) and a second spring (7). The end of the top block (8) away from the clamping plate (10) is in sliding connection with a second guide rod (6) arranged in the sliding block (100). A second spring (7) is arranged between the top block (8) and the end of the second guide rod (6). The second spring (7) is wound around the second guide rod (6).

4. The visual surgical knife handle with an adjustment structure according to claim 3, characterized in that, A limiting block (9) for effectively connecting the clamping plate (10) and the top block (8) is arranged on the side of the top block (8) facing the clamping plate (10).

5. A visual surgical knife handle with an adjustment structure according to claim 4, characterized in that, It further includes a first guide rod (101), a clamping block (3) and a first spring (5). Card slots (2) are formed on both sides in the length direction of the handle (1). Clamping blocks (3) are slidably connected to both sides of the sliding block (100) that are in sliding connection with the side wall provided with the card slots (2) through first guide rods (101). A first spring (5) is arranged between the clamping blocks (3) and the sliding block (100). The first spring (5) is wound around the first guide rod (101). The clamping blocks (3) are in clamping fit with the card slots (2).

6. The visual surgical knife handle with an adjustment structure according to claim 5, characterized in that, The length value of the T-shaped block (13) located outside the sliding block (100) is less than the depth value of the guide groove (131).

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