Scalpel capable of rapidly replacing blade

Abstract

The scalpel comprises a scalpel handle, an installation clamping groove is formed in the scalpel handle, a scalpel holder is installed in the installation clamping groove, the scalpel blade is connected to the upper portion of the scalpel holder, elastic patches are connected to the two sides of the outer wall of the scalpel holder, and the elastic patches are connected to the lower portion of the scalpel handle. Clamping blocks are arranged on the two sides of the tool apron, positioning seats are arranged on the outer sides of the clamping blocks, and limiting rotating plates are installed above the positioning seats; a positioning nut is mounted at one end of the scalpel handle; and a protective sleeve is mounted outside the scalpel blade. Compared with an existing device, the scalpel capable of rapidly replacing the blade has the advantages that the limiting rotating plate can rotate relative to the positioning seat through the rotating shaft, and the rotated limiting rotating plate can limit the clamping block, so that mutual separation of the scalpel holder and the handle of the scalpel can be avoided, and a positioning bolt is matched with a positioning nut; the scalpel handle and the scalpel holder can be reinforced, and scalpel blades can be conveniently disassembled, assembled and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of scalpels, in particular to a scalpel with a blade that can be quickly replaced. Background Art

[0002] A scalpel is a special knife consisting of a blade and a handle used to cut human or animal tissue. It is an indispensable and important surgical tool in surgery. It is usually made of pure titanium, titanium alloy, stainless steel or carbon steel and is generally disposable. During dissection, the blade is used to cut skin and muscles, the tip is used to clean blood vessels and nerves, and the handle is used for blunt separation.

[0003] The Chinese patent with the authorization publication number CN207666661U discloses a scalpel, including a hollow handle, a tail disposed at the end of the handle, an internal thread extending from the tail to the tip, the tail including a slide groove partially extending into the handle and rotating with the handle, the slide groove extending from the tail to the tip, the outer wall of the slide groove matching the inner wall of the handle, a moving block disposed on the slide groove near the tail, one side of the outer wall of the moving block matching the slide groove, and the other side of the moving block being provided with an external thread matching the internal thread on the handle. When using the scalpel provided by the utility model, the surgeon can adjust the length of the scalpel arbitrarily according to the actual situation of the surgical site and his / her working habits.

[0004] Although the length of the scalpel mentioned above can be adjusted arbitrarily according to the actual situation of the surgical site and one's own working habits, the blade and the handle of the scalpel are generally connected, and it is difficult to replace the blade head separately. Therefore, when the scalpel blade is damaged, the scalpel needs to be replaced as a whole, resulting in an increase in the cost of use. For this reason, we need to propose a scalpel with a quick blade replacement. Utility Model Content

[0005] The purpose of the utility model is to provide a scalpel with a quick-change blade, so as to solve the problem mentioned in the background art that since the blade and the handle of the scalpel are generally connected, it is difficult to replace the blade head separately, so when the scalpel blade is damaged, the scalpel needs to be replaced as a whole, resulting in an increase in the cost of use.

[0006] To achieve the above object, the utility model provides the following technical solution: a surgical knife with a quick blade replacement, comprising:

[0007] A scalpel handle, wherein a mounting slot is provided inside the scalpel handle, and a knife seat is installed inside the mounting slot, a scalpel blade is connected to the top of the knife seat, elastic patches are connected to both sides of the outer wall of the knife seat, clamping blocks are provided on both sides of the knife seat, and a positioning seat is provided outside the clamping block, and a limited rotation plate is installed above the positioning seat;

[0008] A positioning bolt is installed inside the scalpel handle and the knife seat, and a positioning nut is installed at one end of the scalpel handle;

[0009] An anti-slip cover is installed on the outside of the scalpel handle, and a protective cover is installed on the outside of the scalpel blade.

[0010] Preferably, the size of the knife seat matches that of the mounting slot, and an elastic structure is formed between the knife seat and the mounting slot through an elastic patch.

[0011] Preferably, the clamping block is fixedly connected to the knife seat, and the limiting rotating plate and the clamping block are engaged with each other, and the limiting rotating plate forms a rotating structure with the positioning seat through the rotating shaft.

[0012] Preferably, the positioning bolt passes through the inside of the scalpel handle and the knife seat, and the positions of the positioning bolt and the positioning nut correspond to each other.

[0013] Preferably, a semi-enclosed structure is formed between the protective cover and the scalpel blade, and the anti-slip cover fits tightly with the scalpel handle.

[0014] Preferably, the scalpel handle is further provided with:

[0015] A connecting rod is connected to the middle part of the scalpel handle, and the scalpel handles are connected to form a tensile structure through the connecting rod.

[0016] Preferably, the anti-slip cover is further provided with:

[0017] The slide bar is installed on both sides outside the anti-slip sleeve. A slide groove is provided at the connection between the slide bar and the anti-slip sleeve, and a positioning hole is provided in the middle of the slide groove. A fixing pin is installed in the slide bar, and the position of the fixing pin corresponds to that of the positioning hole.

[0018] Compared with the prior art, the utility model provides a scalpel with a quick blade replacement, which has the following beneficial effects:

[0019] The utility model can relatively rotate with the positioning seat through the limiting rotating plate via the rotating shaft, and the rotating limiting rotating plate can limit the clamping block, so as to avoid the separation of the knife seat and the scalpel handle from each other, and the cooperation of the positioning bolt and the positioning nut can reinforce the scalpel handle and the knife seat, so as to facilitate the mutual disassembly and replacement of the scalpel blade, avoid the general connection between the scalpel blade and the handle, and it is difficult to replace the knife head separately. Therefore, when the scalpel blade is damaged, the scalpel needs to be replaced as a whole, resulting in the problem of increased use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the connection between the knife holder and the scalpel handle of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the scalpel blade of the utility model;

[0023] Figure 4 It is a partial structural schematic diagram of the scalpel handle of the utility model;

[0024] Figure 5 It is a schematic diagram of the external structure of the scalpel handle of the utility model.

[0025] In the figure: 1. scalpel handle; 2. anti-slip cover; 3. mounting slot; 4. knife holder; 5. scalpel blade; 6. elastic patch; 7. protective cover; 8. block; 9. limit rotating plate; 10. positioning seat; 11. connecting rod; 12. sliding rod; 13. sliding groove; 14. positioning hole; 15. fixing pin; 16. positioning bolt; 17. positioning nut. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-3A scalpel for quickly changing blades comprises: a scalpel handle 1, a mounting slot 3 is provided inside the scalpel handle 1, a knife seat 4 is installed inside the mounting slot 3, a scalpel blade 5 is connected to the top of the knife seat 4, elastic patches 6 are connected to both sides of the outer wall of the knife seat 4, the size of the knife seat 4 matches the size of the mounting slot 3, and the knife seat 4 forms an elastic structure with the mounting slot 3 through the elastic patches 6; the mounting slot 3 can facilitate the connection between the knife seat 4 and the scalpel handle 1, and the connection tightness between the knife seat 4 and the mounting slot 3 can be improved through the elastic patches 6; both sides of the knife seat 4 are provided with card blocks 8, and the outer side of the card blocks 8 is provided with a positioning seat 10, and a limited rotation plate is installed above the positioning seat 10 9; the clamping block 8 is fixedly connected to the knife seat 4, and the limiting rotating plate 9 is engaged with the clamping block 8, and the limiting rotating plate 9 forms a rotating structure with the positioning seat 10 through the rotating shaft; the limiting rotating plate 9 can rotate relative to the positioning seat 10 through the rotating shaft, and the rotating limiting rotating plate 9 can limit the clamping block 8 after rotation, so as to avoid the knife seat 4 and the scalpel handle 1 from separating from each other; the anti-slip cover 2 is installed on the outside of the scalpel handle 1, and a protective cover 7 is installed on the outside of the scalpel blade 5; a semi-enclosed structure is formed between the protective cover 7 and the scalpel blade 5, and the anti-slip cover 2 is tightly fitted with the scalpel handle 1; the protective cover 7 can protect the scalpel blade 5, and the anti-slip cover 2 can increase the friction between the palm and the scalpel handle 1 when holding the knife.

[0028] See also Figure 1 , 2 And 4, a scalpel with a quick blade replacement, comprising: a positioning bolt 16, which is installed inside the scalpel handle 1 and the blade holder 4, and a positioning nut 17 is installed at one end of the scalpel handle 1; the positioning bolt 16 runs through the inside of the scalpel handle 1 and the blade holder 4, and the positions of the positioning bolt 16 and the positioning nut 17 correspond; the cooperation of the positioning bolt 16 and the positioning nut 17 can reinforce the scalpel handle 1 and the blade holder 4, thereby facilitating the mutual disassembly, assembly and replacement of the scalpel blade 5.

[0029] See also Figure 1 and 5A scalpel for quickly changing blades comprises: a connecting rod 11, which is connected to the middle part of a scalpel handle 1, and a stretching structure is formed between the scalpel handles 1 through the connecting rod 11; the connecting rod 11 can facilitate the mutual stretching of the upper and lower scalpel handles 1, so that the length of the scalpel can be adjusted as needed; a sliding rod 12, which is installed on both sides outside an anti-slip sleeve 2, a sliding groove 13 is provided at the connection between the sliding rod 12 and the anti-slip sleeve 2, and a positioning hole 14 is provided in the middle of the sliding groove 13, a fixing pin 15 is installed in the sliding rod 12, and the position of the fixing pin 15 corresponds to the position of the positioning hole 14; the sliding rod 12 can slide with the scalpel handle 1 through the sliding groove 13, so as to guide the stretching of the scalpel handle 1, and the fixing pin 15 can engage with the corresponding positioning hole 14 to facilitate the positioning of the scalpel handle 1.

[0030] Working principle: When using the scalpel with a quick-change blade, first connect and install the scalpel blade 5 and the scalpel handle 1, insert the blade holder 4 into the installation slot 3, and improve the connection tightness between the blade holder 4 and the installation slot 3 through the elastic patch 6, then pass the positioning bolt 16 through the scalpel handle 1 and the blade holder 4 until it is connected and fixed with the positioning nut 17, so that the scalpel handle 1 and the blade holder 4 can be reinforced; secondly, rotate the limit rotating plate 9 so that the limit rotating plate 9 limits the clamping block 8, so as to avoid the blade holder 4 and the scalpel handle 1 from separating from each other; then The length of the scalpel is adjusted, and the upper and lower scalpel handles 1 are stretched to the appropriate positions on both sides. At the same time, the slide bar 12 slides with the scalpel handle 1 through the slide groove 13, which can guide the stretching of the scalpel handle 1. Then the fixing pin 15 is inserted into the corresponding positioning hole 14 to position the scalpel handle 1; finally, the protective cover 7 can protect the scalpel blade 5, and the anti-slip cover 2 can increase the friction between the palm and the scalpel handle 1 when holding the knife, thereby preventing the scalpel from slipping from the hand. This is the working principle of the scalpel with a quick blade change.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surgical knife with a quick blade change, characterized in that: include: A scalpel handle (1), wherein a mounting slot (3) is provided inside the scalpel handle (1), and a knife seat (4) is installed inside the mounting slot (3), a scalpel blade (5) is connected to the top of the knife seat (4), both sides of the outer wall of the knife seat (4) are connected to elastic patches (6), both sides of the knife seat (4) are provided with a clamping block (8), and a positioning seat (10) is provided outside the clamping block (8), and a limit rotation plate (9) is installed above the positioning seat (10); A positioning bolt (16) is installed inside the scalpel handle (1) and the knife seat (4), and a positioning nut (17) is installed at one end of the scalpel handle (1); An anti-slip cover (2) is installed on the outside of the scalpel handle (1), and a protective cover (7) is installed on the outside of the scalpel blade (5).

2. A surgical knife with a quick blade change according to claim 1, characterized in that: The size of the knife seat (4) matches that of the mounting slot (3), and the knife seat (4) forms an elastic structure with the mounting slot (3) through the elastic patch (6).

3. A surgical knife with a quick blade change according to claim 1, characterized in that: The clamping block (8) is fixedly connected to the knife seat (4), and the limiting rotating plate (9) and the clamping block (8) are mutually engaged, and the limiting rotating plate (9) forms a rotating structure with the positioning seat (10) through the rotating shaft.

4. A surgical knife with a quick blade change according to claim 1, characterized in that: The positioning bolt (16) passes through the interior of the surgical knife handle (1) and the knife seat (4), and the positions of the positioning bolt (16) and the positioning nut (17) correspond to each other.

5. A surgical knife with a quick blade change according to claim 1, characterized in that: A semi-enclosed structure is formed between the protective cover (7) and the scalpel blade (5), and the anti-slip cover (2) is tightly fitted to the scalpel handle (1).

6. A surgical knife with a quick blade change according to claim 1, characterized in that: The scalpel handle (1) is also provided with: A connecting rod (11) is connected to the middle part of the scalpel handle (1), and a tensile structure is formed between the scalpel handles (1) via the connecting rod (11).

7. A surgical knife with a quick blade change according to claim 1, characterized in that: The anti-slip cover (2) is also provided with: A slide bar (12) is installed on both sides of the anti-slip sleeve (2); a slide groove (13) is provided at the connection between the slide bar (12) and the anti-slip sleeve (2); a positioning hole (14) is provided in the middle of the slide groove (13); a fixing pin (15) is installed in the slide bar (12), and the position of the fixing pin (15) corresponds to that of the positioning hole (14).

Images