One-handed safety scalpel

Abstract

The utility model relates to a one-handed safety scalpel, comprising a handle, a blade fixed to one end of the handle, and a movable protective cover capable of protecting the blade, the handle comprising a detachably connected upper handle and a lower handle, the protective cover being slidably connected to the upper handle and the lower handle, thereby covering or exposing the blade, the upper handle being provided with a guide groove and a front locking groove, the protective cover having a convex block extending outside the guide groove and capable of sliding along the guide groove, and a front locking block capable of being embedded in the front locking groove and limiting the sliding of the protective cover, the lower handle being provided with a rear locking groove, the protective cover having a rear locking block capable of being embedded in the rear locking groove and limiting the sliding of the protective cover. The one-handed safety scalpel can realize one-handed operation through the mutual cooperation of the upper handle, the lower handle and the protective cover, greatly reducing the difficulty of operation for doctors, preventing the blade from bumping, and being convenient and safe to use.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a one-handed safety scalpel. Background Art

[0002] The original first-generation and second-generation scalpel structures all have a movable protective cover that can protect the blade, such as a scalpel safety handle disclosed in CN101415373A. However, this type of scalpel has a complex structure, and its protective cover requires the cooperation of both hands to be removed, and there is a risk of bumping, which is unsafe and inconvenient to use. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a one-handed safety scalpel which has a simple structure, is easy to use and can be operated with one hand.

[0004] The utility model is realized through the following technical solutions:

[0005] A one-handed safety scalpel comprises a handle, a blade fixed to one end of the handle, and a movable protective cover capable of protecting the blade, wherein the handle comprises an upper handle and a lower handle which are detachably connected, the blade being fixed to one end of the lower handle, the upper handle and the lower handle being sleeved outside the protective cover, the protective cover being slidably connected to the upper handle and the lower handle, thereby covering or exposing the blade, the upper handle being provided with a guide groove and a front locking groove, the protective cover having a protrusion extending outside the guide groove and capable of sliding along the guide groove, and a front locking block capable of being embedded in the front locking groove and limiting the sliding of the protective cover, the lower handle being provided with a rear locking groove, the protective cover having a rear locking block capable of being embedded in the rear locking groove and limiting the sliding of the protective cover.

[0006] In order to facilitate the detachability between the upper handle and the lower handle, a plurality of buckles are evenly arranged on both sides of the bottom end of the upper handle along its length direction, and a plurality of slots capable of being engaged by the buckles are opened on the inner wall of the lower handle along its length direction.

[0007] In order to facilitate the positioning of the upper knife handle and the lower knife handle, the upper knife handle is provided with a plurality of positioning posts with openings downward, and the lower knife handle is provided with a plurality of positioning blocks capable of being inserted into the positioning posts.

[0008] In order to facilitate the disassembly and assembly of the blade, one end of the lower blade handle has a fixing portion for mounting the blade, one end of the fixing portion is arranged on the inner side of the lower blade handle, and the other end extends to the outside of the lower blade handle.

[0009] In order to protect different types of blades, the end of the protective sleeve close to the fixing portion has a raised portion that can partially surround the fixing portion and the blade.

[0010] In order to guide and limit the arched portion, an arc-shaped guide groove capable of partially embedding the arched portion is provided at one end of the upper knife handle close to the fixed portion.

[0011] In order to ensure that the protective cover can slide forward and backward smoothly, a through groove capable of avoiding the fixing part is provided at the bottom of one end of the protective cover close to the fixing part.

[0012] In order to facilitate the locking and unlocking of the front locking block, the top end of the protective cover is provided with a first elastic block which can move up and down, and the protrusion and the front locking block are arranged on the first elastic block.

[0013] In order to facilitate the locking and unlocking of the rear locking block, the bottom end of the protective cover is provided with a second elastic block that can move up and down, and the rear locking block is arranged on the second elastic block; the lower knife handle is provided with a strip groove that can avoid the rear locking block.

[0014] The beneficial effects of the utility model are as follows: the one-handed safety scalpel can be operated with one hand through the cooperation of the upper handle, the lower handle and the protective cover, which greatly reduces the operating difficulty of the doctor, prevents the blade from being bumped, and is convenient and safe to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a one-handed safety scalpel of the utility model;

[0016] Figure 2 This is an exploded view of the one-handed safety scalpel of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the upper handle of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the lower knife handle of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the protective cover of the utility model;

[0020] Figure 6 It is a three-dimensional structural schematic diagram of another embodiment of the utility model. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more specific definition of the protection scope of the present invention. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., are only for reference to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, rather than to limit the present invention.

[0022] Embodiment 1:

[0023] like Figure 1 A one-handed safety scalpel is shown, comprising a handle, a blade 4 fixed to one end of the handle, and a movable protective cover 3 capable of protecting the blade 4, all of which are made of plastic parts. The handle comprises a detachably connected upper handle 1 and a lower handle 2, the blade 4 is fixed to one end of the lower handle 2, the upper handle 1 and the lower handle 2 are sleeved outside the protective cover 3, the protective cover 3 is slidably connected to the upper handle 1 and the lower handle 2, so as to cover or expose the blade 4, the protective cover 3 can extend or retract the upper handle 1 and the lower handle 2, when the protective cover 3 is completely extended outside the upper handle 1 and the lower handle 2, it can surround the blade 4, thereby improving the reliability of transportation and storage of the product, and at the same time improving the safety of use of the product, when the protective cover 3 is retracted into the upper handle 1 and the lower handle 2, the blade 4 is exposed outside, and the scalpel can be used normally.

[0024] Specifically, combined Figure 2-5 As shown, two rows of buckles 101 are evenly arranged on both sides of the bottom end of the upper handle 1 along its length direction, and two rows of slots 201 that can be engaged with the buckles 101 are opened on the inner wall of the lower handle 2 along its length direction. At the same time, the upper handle 1 has a plurality of positioning columns 102 with openings facing downward, and the lower handle 2 has a plurality of positioning blocks 202 that can be inserted into the positioning columns 102. The upper handle 1 and the lower handle 2 can be disassembled and positioned by cooperating between the buckles 101 and the slots 201, and between the positioning columns 102 and the positioning blocks 202, so as to realize the rapid disassembly, assembly and maintenance of the product and reduce the production cost.

[0025] The front end of the lower knife handle 2 is integrally formed with a fixing portion 203 for mounting the blade 4. One end of the fixing portion 203 is arranged on the inner side of the lower knife handle 2, and the other end extends to the outside of the lower knife handle 2. The outer end of the fixing portion 203 is provided with a socket for inserting the blade 4. The top of the upper knife handle 1 is provided with a guide groove 103 and a front locking groove 104. The guide groove 103 is located at the rear side of the front locking groove 104 and has a certain length. The top of the protective cover 3 is provided with a first elastic block 301 that can move up and down. The first elastic block 301 is integrally formed with a protrusion 302 that extends to the outside of the guide groove 103 and can slide along the guide groove 103, and a protrusion 302 that can be inserted A front locking block 303 is inserted into the front locking groove 104 and limits the sliding of the protective cover 3. A rear locking groove 204 and a strip groove 205 are provided at the bottom end of the lower knife handle 2. The rear locking groove 204 is located at the rear side of the strip groove 205. The bottom end of the protective cover 3 has a second elastic block 305 that can move up and down. The second elastic block 305 is integrally formed with a rear locking block 306 that can be embedded in the rear locking groove 204 and limit the sliding of the protective cover 3. The front locking groove 104 cooperates with the front locking block 303, and the rear locking groove 204 cooperates with the rear locking block 306 to achieve locking of the extended and retracted states of the protective cover 3, thereby further ensuring the stability of the product.

[0026] The end of the protective cover 3 close to the fixed part 203 is integrally formed with an arched portion 304 that can partially surround the fixed part 203 and the blade 4. At the same time, the bottom of the end of the protective cover 3 close to the fixed part 203 is provided with a through groove 307 that can avoid the fixed part 203. The end of the upper handle 1 close to the fixed part 203 is provided with an arc guide groove 105 that can allow the arched portion 304 to be partially embedded. The arched portion 304 cooperates with the arc guide groove 105 to achieve sliding guidance of the protective cover 3 and avoid its axial rotation, thereby further improving the reliability of the product.

[0027] During installation, the protective cover 3 is first placed in the lower handle 2, and the rear locking block 306 on the protective cover 3 is inserted into the rear locking groove 204 of the lower handle 2 to complete the positioning. At this time, the upper handle 1 is covered, and finally the blade 4 is installed to complete the overall assembly; during use, the protrusion 302 is pressed down and the protective cover 3 is pushed to move forward so that the front locking block 303 is inserted into the front locking groove 104, and the protective cover 3 is arranged outside the blade 4 to play a protective role; the protrusion 302 is pressed down and the protective cover 3 is pushed to move backward so that the rear locking block 306 is inserted into the rear locking groove 204, and the blade 4 is exposed to the outside, which is convenient for the doctor to perform surgical operations.

[0028] Embodiment 2:

[0029] like Figure 6 As shown, the difference from Example 1 is that the blade 5 is an L-shaped structure, so the size of the arched portion 6 of the protective cover is correspondingly increased to meet the protection requirements of blades of different models.

[0030] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A one-handed safety scalpel, comprising a handle, a blade fixed to one end of the handle, and a movable protective cover capable of protecting the blade, characterized in that: The knife handle comprises an upper knife handle and a lower knife handle which are detachably connected, the blade is fixed to one end of the lower knife handle, the upper knife handle and the lower knife handle are sleeved outside a protective cover, the protective cover is slidably connected to the upper knife handle and the lower knife handle, thereby covering or exposing the blade, the upper knife handle is provided with a guide groove and a front locking groove, the protective cover has a protrusion which extends outside the guide groove and can slide along the guide groove, and a front locking block which can be embedded in the front locking groove and limit the sliding of the protective cover, the lower knife handle is provided with a rear locking groove, the protective cover has a rear locking block which can be embedded in the rear locking groove and limit the sliding of the protective cover.

2. The one-handed safety scalpel according to claim 1, characterized in that: A plurality of buckles are evenly arranged on both sides of the bottom end of the upper knife handle along its length direction, and a plurality of slots capable of being engaged with the buckles are opened on the inner wall of the lower knife handle along its length direction.

3. The one-handed safety scalpel according to claim 2, characterized in that: The upper knife handle is provided with a plurality of positioning posts with openings downward, and the lower knife handle is provided with a plurality of positioning blocks capable of being inserted into the positioning posts.

4. The one-handed safety scalpel according to claim 1, characterized in that: One end of the lower knife handle is provided with a fixing portion for mounting a blade, one end of the fixing portion is arranged on the inner side of the lower knife handle, and the other end extends to the outside of the lower knife handle.

5. The one-handed safety scalpel according to claim 4, characterized in that: One end of the protective sleeve close to the fixing portion has an arched portion capable of partially surrounding the fixing portion and the blade.

6. The one-handed safety scalpel according to claim 5, characterized in that: An arc-shaped guide groove is formed at one end of the upper knife handle close to the fixing portion, into which the arched portion can be partially embedded.

7. The one-handed safety scalpel according to claim 4, characterized in that: A through groove capable of avoiding the fixing portion is formed at the bottom of one end of the protective cover close to the fixing portion.

8. The one-handed safety scalpel according to claim 1, characterized in that: The top end of the protective cover is provided with a first elastic block which can move up and down, and the protrusion and the front locking block are arranged on the first elastic block.

9. The one-handed safety scalpel according to claim 1 or 8, characterized in that: The bottom end of the protective cover is provided with a second elastic block which can move up and down, and the rear locking block is arranged on the second elastic block.

10. The one-handed safety scalpel according to claim 9, characterized in that: The lower knife handle is provided with a strip groove capable of avoiding the rear locking block.

Images