Surgical knife with knife box

Abstract

The utility model discloses a surgical knife with a knife box, which relates to the field of surgical knives, and adopts the technical scheme that the surgical knife comprises a blade, the knife box and a knife handle, the tail section of the blade is hinged to the tail end of the blade box; an elastic piece is arranged between the blade and the knife box, the elastic piece drives the blade and the knife box to swing and be folded, and in the process of folding the blade and the knife box, the cutting edge of the blade is matched into the box from the box opening of the knife box; the tail end of the blade is detachably fixed to the front end of the knife handle, a lock catch structure is arranged between the knife handle and the knife box, and the blade is fixed to the knife handle through the lock catch structure after being unfolded relative to the knife box. After the knife handle is separated from the blade, the knife box is automatically folded relative to the blade, so that the blade is protected, and the blade is prevented from hurting people.

Description

Technical Field

[0001] This utility model relates to the field of surgical knives, and in particular to surgical knives with a knife holder. Background Technology

[0002] During surgery, surgical blades are passed between nurses and doctors. For example, the blade needs to be handed to the doctor before surgery, returned to the nurse after use, and collected as medical waste afterward. This entire process easily leads to injuries from surgical blades. While the main solution lies in standardizing operating procedures, the fact that the blade is exposed and handled in this way still poses a significant safety hazard to medical staff. Current solutions, such as the surgical blade disclosed in patent document CN103961161A, which uses a sheathed scalpel, do not completely solve the problem. The sheath needs to be manually extended to protect the blade, which requires medical staff to perform an action. Failure to extend the sheath or forgetting to do so can still easily result in injury. The aforementioned problems mainly stem from improper operation or lack of attention by medical staff. Therefore, the root cause lies in how to address the issue of surgical blade injuries caused by improper operation by medical staff. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a surgical knife with a blade holder, which can automatically close relative to the blade after the handle and blade are separated, forming a protection for the blade and preventing the blade from causing injury to the person.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a surgical knife with a blade case, including a blade, a blade case and a handle;

[0005] The tail section of the blade is hinged to the tail end of the blade holder;

[0006] An elastic element is provided between the blade and the blade box. The elastic element drives the blade and the blade box to swing and close. During the closing process, the cutting edge of the blade engages with the inside of the blade box from the opening of the blade box.

[0007] The tail end of the blade is detachably fixed to the front end of the handle. A locking structure is provided between the handle and the magazine. After the blade is unfolded relative to the magazine, it is fixed to the handle by the locking structure.

[0008] When using, fix the end of the blade to the handle, then open the blade magazine relative to the blade and fix the blade magazine to the guide rod through the locking mechanism. At this point, it can be used like a regular scalpel. When finished using, operate the locking mechanism to release the blade magazine. Under the action of the elastic element, the blade magazine will automatically close relative to the blade, thus protecting the blade. At this point, remove the blade from the handle. Due to the protection of the blade magazine, the blade will not injure anyone.

[0009] Preferably, the blade holder includes two blades, the front ends of which are fixed to the sides of a clamping plate. The blade is located between the two blades, and a pivot is provided at the tail end of the blade. Both ends of the pivot are fixed to the blades. This provides good protection for the blade.

[0010] Preferably, the blade holder is made of a single piece of sheet metal. This makes the structure more stable and durable.

[0011] Preferably, the blade holder is a one-piece molded plastic structure. This makes the structure more stable and durable.

[0012] Preferably, rubber protective pads are provided on the inner front sides of the two blades. These rubber protective pads prevent the blade edges from directly contacting the blade holder.

[0013] Preferably, the locking structure includes a limiting protrusion and an annular groove. The limiting protrusion is located on the front end of the blade magazine away from the magazine opening, and the annular groove is located on the front section of the blade handle, facing forward. The limiting protrusion is engaged within the annular groove. When the blade magazine is unfolded relative to the blade, the front end of the blade magazine swings backward against the side wall of the blade handle. At this time, the blade handle moves forward against the blade, and the annular groove engages with the limiting protrusion to limit the blade magazine and prevent it from falling off.

[0014] Preferably, the annular groove is screwed into the tail end of the blade. This allows for better axial repositioning of the tool holder relative to the blade, thereby enabling the annular groove to engage with the limiting protrusion.

[0015] Preferably, the elastic element is a torsion spring located at the hinge. This occupies less space and allows for a larger angle of swing of the tool magazine.

[0016] The beneficial effects of this utility model are:

[0017] This solution enables the blade holder to automatically close relative to the blade after the handle and blade are separated, thus protecting the blade and preventing injury to the user. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only three of the drawings in this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the blade holder and blade being closed according to an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram showing the blade holder and blade separated according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram illustrating the fixing of the knife box and knife handle according to an embodiment of the present utility model;

[0022] Among them, 1. blade; 2. blade holder; 3. tool box; 4. tool handle; 5. clamping plate; 6. limiting protrusion; 7. annular groove. Detailed Implementation

[0023] To enhance understanding of this utility model, it will be described in further detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model.

[0024] Example

[0025] like Figure 1 As shown, a surgical knife with a sheath includes a blade 1, a sheath 3, and a handle 4. The tail end of the blade 1 is hinged to the tail end of the sheath 3. An elastic element is provided between the blade 1 and the sheath 3, which drives the blade 1 and the sheath 3 to swing and close. During the closing process, the cutting edge of the blade 1 engages with the opening of the sheath 3 and enters the sheath. The tail end of the blade 1 is detachably fixed to the front end of the handle 4. A locking structure is provided between the handle 4 and the sheath 3. After the blade 1 is unfolded relative to the sheath 3, it is fixed to the handle 4 by the locking structure. In this embodiment, a blade shank 2 is provided at the tail end of the blade 1, and the blade shank 2 is connected to the handle 4.

[0026] Combination Figure 3 As shown, in use, the tail end of blade 1 is fixed to the handle 4, then the blade magazine 3 is opened relative to blade 1, and the blade magazine 3 is fixed to the guide rod by the locking mechanism. At this point, it can be used like a regular scalpel. Figure 1As shown, when the use is finished, the locking mechanism is operated to release the lock on the blade magazine 3. Under the action of the elastic element, the blade magazine 3 will automatically close relative to the blade 1, thereby protecting the blade 1. At this time, the blade 1 can be removed from the handle 4. Due to the protection of the blade magazine 3, the blade 1 will not hurt people.

[0027] The blade holder 3 includes two blades, the front ends of which are fixed to the sides of the clamping plate 5. The blade 1 is located between the two blades, and a pivot is provided at the tail end of the blade 1. Both ends of the pivot are fixed to the blades. This provides good protection for the blade 1.

[0028] In this embodiment, the blade holder 3 is a one-piece molded sheet metal structure. This results in a more stable and durable structure. In another embodiment, the blade holder 3 is a one-piece molded plastic structure.

[0029] Rubber protective pads are provided on the inner front sides of the two blades. The rubber protective pads prevent the cutting edge of the blade 1 from directly contacting the blade holder 3.

[0030] The locking structure includes a limiting protrusion 6 and an annular groove 7. The limiting protrusion 6 is located on the front end of the blade magazine 3 away from the magazine opening. The annular groove 7 is located at the front section of the blade handle 4, facing forward. The limiting protrusion 6 is engaged within the annular groove 7. When the blade magazine 3 is unfolded relative to the blade 1, the front end of the blade magazine 3 swings backward against the side wall of the blade handle 4. At this time, the blade handle 4 moves forward against the blade 1. The annular groove 7 cooperates with the limiting protrusion 6 to limit the blade magazine 3 and prevent it from falling off.

[0031] The annular groove 7 is screwed into the tail end of the blade 1. This allows for better axial repositioning of the tool holder 4 relative to the blade 1, thereby enabling the annular groove 7 to engage with the limiting protrusion 6.

[0032] The elastic element is a torsion spring located at the hinge. It occupies less space and can cause the tool magazine 3 to swing at a larger angle.

[0033] The beneficial effects of this utility model are:

[0034] This solution enables the blade holder 3 to automatically close relative to the blade 1 after the handle 4 is separated from the blade 1, thus protecting the blade 1 and preventing it from causing injury to people.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A surgical instrument with a scalpel case, characterized in that, Includes a blade (1), a blade case (3), and a handle (4); The tail section of the blade (1) is hinged to the tail end of the blade box (3); An elastic element is provided between the blade (1) and the blade box (3). The elastic element drives the blade (1) and the blade box (3) to swing and close. During the closing process of the blade (1) and the blade box (3), the cutting edge of the blade (1) fits into the box from the opening of the blade box (3). The tail end of the blade (1) is detachably fixed to the front end of the handle (4). A locking structure is provided between the handle (4) and the box (3). After the blade (1) is unfolded relative to the box (3), it is fixed to the handle (4) by the locking structure.

2. The surgical instrument with a scalpel case according to claim 1, characterized in that: The blade holder (3) includes two blades, the front ends of which are fixed to the sides of the clamping plate (5). The blade (1) is located between the two blades, and the tail end of the blade (1) is provided with a rotating shaft, the two ends of which are fixed to the blades respectively.

3. The surgical instrument with a scalpel case according to claim 2, characterized in that: The blade box (3) is made of sheet metal in one piece.

4. The surgical instrument with a scalpel case according to claim 2, characterized in that: The blade holder (3) is a one-piece molded plastic structure.

5. The surgical instrument with a scalpel case according to claim 2, characterized in that: Rubber protective pads are provided on the inner front end of the two cartridge plates.

6. The surgical instrument with a scalpel case according to claim 1, characterized in that: The locking structure includes a limiting protrusion (6) and an annular groove (7). The limiting protrusion (6) is located on the front end of the knife magazine (3) away from the magazine opening. The annular groove (7) is located on the front section of the knife handle (4). The annular groove (7) is forward-facing, and the limiting protrusion (6) is engaged in the annular groove (7).

7. The surgical instrument with a scalpel case according to claim 6, characterized in that: The annular groove (7) is screwed into the tail end of the blade (1).

8. The surgical instrument with a scalpel case according to claim 1, characterized in that: The elastic element is a torsion spring located at the hinge.

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