Skin mouth gag convenient to use

Abstract

The utility model relates to the technical field of medical instruments, and discloses a skin mouth gag convenient to use. A limiting groove is formed in the outer side of a mounting seat, a groove is formed in the other end of a connecting seat, a guide groove is formed in one side of the groove, a limiting column is connected to the interior of the guide groove, and a moving block is fixedly connected to one end of the limiting column; the moving block is located in the groove, and the needle handle part is fixedly connected to one end of the mounting base; the movable block is pushed upwards to move in the groove, so that the movable block drives the limiting column to move in the guide groove, at the moment, one end of the limiting column is separated from the interior of the limiting groove, the needle head handle part can be pulled to drive the mounting base to be separated from the interior of the mounting groove, the needle head handle part is detached, and the needle head handle part can be replaced; the skin mouth gag is simple and quick to operate, the needle tip on the needle handle part is convenient to maintain and replace, and different cutters can be quickly replaced according to requirements, so that the universality of the skin mouth gag is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a skin opener that is easy to use. Background Art

[0002] A skin opener is a medical device, also known as a dermatome. It's commonly used during surgery or other medical procedures to make an incision in the skin to allow for surgery or treatment. During surgery, doctors use a suitable skin opener to facilitate access to the body.

[0003] The handle of a conventional skin opener is usually fixedly connected or threadedly connected to the handle, which is inconvenient when it is disassembled. In addition, the inclined surface of the needle tip of a conventional skin opener is not on the central axis of the needle handle, which is not convenient for operating force and precise positioning. Utility Model Content

[0004] The purpose of the present invention is to provide a skin opener that is easy to use to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a convenient-to-use skin opener, comprising a handle, a connecting seat and a needle handle, wherein the connecting seat is arranged at one end of the handle, the needle handle is arranged at the end of the connecting seat away from the handle, and a mounting assembly is provided on the connecting seat;

[0006] The mounting assembly includes a mounting seat, a limiting column and a moving block. The other end of the connecting seat is provided with a mounting groove, the mounting seat is installed inside the mounting groove, a limiting groove is provided on the outside of the mounting seat, the other end of the connecting seat is provided with a groove, one side of the groove is provided with a guide groove, the limiting column is connected to the inside of the guide groove, the moving block is fixedly connected to one end of the limiting column, the moving block is located inside the groove, and the needle handle is fixedly connected to one end of the mounting seat.

[0007] Preferably, one end of the needle handle is provided with a needle tip, and the shape of the needle tip is a semi-conical shape, and the semi-conical shape is the remaining part after cutting a section through the central axis of the cone.

[0008] Another optional solution is that the missing portion of the semi-conical shape relative to the cone before cutting is further provided with a filling block with a first inclined surface, and the filling block is integrally connected to the needle handle and the semi-conical shape.

[0009] Preferably, a placement groove is provided on the outer side of the connecting seat, and an anti-slip protrusion is fixedly connected to the inside of the placement groove.

[0010] Preferably, a deep groove is provided on one side of the groove, and a tension spring is provided inside the deep groove.

[0011] Preferably, one end of the tension spring is fixedly connected to the bottom side of the moving block, and the other end of the tension spring is fixedly connected to the bottom of the deep groove.

[0012] Preferably, a flat surface is provided on the outer side of the mounting seat, and an inclined surface is provided on one end of the limiting column.

[0013] Preferably, one end of the limiting column matches the limiting groove, and the mounting seat matches the mounting groove.

[0014] Preferably, the handle has a diameter of 0.7 cm and a length of 8 cm.

[0015] Preferably, the connecting seat has a diameter of 1 cm and a longitudinal length of 1.5 cm.

[0016] Preferably, the needle handle has a total length of 5 cm and a diameter of 1.2-1.6 mm.

[0017] Compared with the prior art, the above technical solution adopted by the present invention has the following technical effects:

[0018] 1. The utility model pushes the moving block upward to move inside the groove, so that the moving block drives the limiting column to move inside the guide groove. At this time, one end of the limiting column is separated from the inside of the limiting groove, and the needle handle can be pulled to drive the mounting seat to separate from the inside of the mounting groove. The disassembly of the needle handle is completed, and the needle handle can be replaced. The operation is simple and fast, and it is convenient to maintain and replace the needle tip on the needle handle. At the same time, different knives can be quickly replaced according to needs, thereby improving the versatility of the skin opener.

[0019] 2. The shape of the needle tip of the present invention is a semi-conical special shape. The semi-conical special shape is the remaining part after the cross-section through the central axis of the cone is cut. The semi-conical special shape can also be provided with a filling block with a first inclined surface relative to the missing part of the cone before cutting. The filling block is integrally connected to the needle handle and the semi-conical special shape, which is convenient for the operation and use of the opener and can be accurately positioned when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0023] Figure 3 For the utility model Figure 2 Schematic diagram of the enlarged structure of area A in the middle;

[0024] Figure 4 This is a schematic diagram of the connecting seat structure of the utility model;

[0025] Figure 5 This is a schematic diagram of the anti-slip protrusion structure of the utility model;

[0026] Figure 6 This is a schematic diagram of the needle tip structure of the present utility model.

[0027] Explanation of the accompanying reference numerals: 1. handle; 2. connecting seat; 3. placement groove; 4. needle handle; 5. needle tip; 6. first inclined surface; 7. mounting groove; 8. mounting seat; 9. limiting groove; 10. groove; 11. guide groove; 12. limiting column; 13. moving block; 14. deep groove; 15. tension spring; 16. plane; 17. anti-slip protrusion; 18. inclined surface. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0030] Example

[0031] See also Figure 1-5The utility model provides a technical solution: a convenient skin opener, comprising a handle 1, a connecting seat 2 and a needle handle 4. The handle 1 has a diameter of 0.7 cm and a length of 8 cm. The purpose is to increase the length of the skin opener, make it easy to hold and save effort; the connecting seat 2 is arranged at one end of the handle 1, and a placement groove 3 is provided on the outside of the connecting seat 2. The inside of the placement groove 3 is fixedly connected with an anti-slip protrusion 17. The connecting seat 2 is the interruption part of the needle handle 4 and the handle 1, with a diameter of 1 cm and a longitudinal length of 1.5 cm. It is a short cylindrical shape, and the side in the same direction as the first inclined surface 6 is the placement groove 3, which is the thumb placement area, easy to hold and apply force; the needle handle 4 is arranged at the end of the connecting seat 2 away from the handle 1.

[0032] like Figure 6 As shown, a needle tip 5 is provided at one end of the needle handle 4. The shape of the needle tip 5 is a semi-conical special shape. The semi-conical special shape is the remaining part after the cross-section through the central axis of the cone is cut, specifically the part on the left side of the dotted line. In some embodiments, the semi-conical special shape is relative to the missing part of the cone before cutting (specifically the cut-off part) and is further provided with a filling block with a first inclined surface 6. The filling block is integrally connected to the needle handle and the semi-conical special shape, which is convenient for the operation and use of the opener and can be accurately positioned when used; the outer end of the needle handle 4 is provided with a first inclined surface 6. The needle handle 4 has a total length of 5 cm and a diameter of 1.2-1.6 mm, which is divided into the first inclined surface 6 and the needle tip 5. The needle tip 5 directly contacts and pierces the epidermis; the first inclined surface 6 has less resistance and can pierce the dermis to the subcutaneous layer together with the needle tip 5; the needle handle 4 is designed to increase the distance between the needle tip 5 and the handle 1 to facilitate puncturing the skin; a mounting assembly is provided on the connecting seat 2;

[0033] By setting up the mounting assembly, it is convenient to maintain and replace the needle tip 5 on the needle handle 4, and different knives can be quickly replaced according to needs, thereby improving the versatility of the skin opener; the mounting assembly includes a mounting seat 8, a limiting column 12 and a moving block 13, the other end of the connecting seat 2 is provided with a mounting groove 7, the mounting seat 8 is installed in the inside of the mounting groove 7, the outside of the mounting seat 8 is provided with a limiting groove 9, the other end of the connecting seat 2 is provided with a groove 10, one side of the groove 10 is provided with a guide groove 11, the limiting column 12 is connected to the inside of the guide groove 11, the moving block 13 is fixedly connected to one end of the limiting column 12, and the moving block 13 is located in the groove 10 Inside, the needle handle 4 is fixedly connected to one end of the mounting seat 8, and a deep groove 14 is opened on one side of the groove 10. A tension spring 15 is arranged inside the deep groove 14, and one end of the tension spring 15 is fixedly connected to the bottom side of the moving block 13, and the other end of the tension spring 15 is fixedly connected to the bottom of the deep groove 14; by pushing the moving block 13 upward to move inside the groove 10, the moving block 13 drives the limiting column 12 to move inside the guide groove 11. At this time, one end of the limiting column 12 is disengaged from the inside of the limiting groove 9, and the needle handle 4 can be pulled to drive the mounting seat 8 to disengage from the inside of the mounting groove 7, thereby completing the disassembly of the needle handle 4 and the needle handle 4 can be replaced;

[0034] A flat surface 16 is provided on the outer side of the mounting seat 8, and an inclined surface 18 is provided on one end of the limiting column 12. When the needle handle 4 is installed, the mounting seat 8 is inserted into the interior of the mounting groove 7. At this time, one end of the mounting seat 8 is in contact with the inclined surface 18 of the limiting column 12, and the mounting seat 8 pushes the limiting column 12 to move inside the guide groove 11. During this process, the limiting column 12 drives the moving block 13 to move inside the groove 10, so that the tension spring 15 is in tension.

[0035] One end of the limiting column 12 matches the limiting groove 9, and the mounting seat 8 matches the mounting groove 7; by aligning the flat surface 16 on the mounting seat 8 upward with the mounting groove 7, the mounting groove 7 can position the mounting seat 8, facilitating the installation of the needle handle 4.

[0036] The working principle or structural principle is that when the needle handle 4 needs to be replaced, the moving block 13 is pushed upward to move inside the groove 10, so that the moving block 13 drives the limiting column 12 to move inside the guide groove 11. At this time, one end of the limiting column 12 is separated from the inside of the limiting groove 9, and the needle handle 4 can be pulled to drive the mounting seat 8 to separate from the inside of the mounting groove 7. The disassembly of the needle handle 4 is completed, and the needle handle 4 can be replaced. The operation is simple and fast, and it is convenient to maintain and replace the needle tip 5 on the needle handle 4. At the same time, different knives can be quickly replaced according to needs, thereby improving the versatility of the skin opener; when the needle is replaced When installing the handle 4, the flat surface 16 on the mounting seat 8 is aligned upward with the mounting groove 7, and the mounting seat 8 is inserted into the interior of the mounting groove 7. At this time, one end of the mounting seat 8 is in contact with the inclined surface 18 of the limiting column 12, and the mounting seat 8 pushes the limiting column 12 to move inside the guide groove 11. During this process, the limiting column 12 drives the moving block 13 to move inside the groove 10, so that the tension spring 15 is in a stretched state. When the limiting groove 9 moves to the bottom of the limiting column 12, the tension spring 15 drives the moving block 13 and the limiting column 12 to reset, so that one end of the limiting column 12 is inserted into the interior of the limiting groove 9, and the fixing of the mounting seat 8 is completed.

[0037] Those skilled in the art will appreciate that various combinations and / or combinations of features described in the various embodiments and / or claims of the present invention may be employed, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, various combinations and / or combinations of features described in the various embodiments and / or claims of the present invention may be employed without departing from the spirit and teachings of the present invention. All such combinations and / or combinations fall within the scope of the present invention.

Claims

1. A convenient skin opening device, comprising a handle (1), a connecting seat (2) and a needle handle (4), characterized in that: The connecting seat (2) is arranged at one end of the handle (1), the needle handle (4) is arranged at the end of the connecting seat (2) away from the handle (1), and a mounting assembly is provided on the connecting seat (2); The mounting assembly comprises a mounting seat (8), a limiting column (12) and a moving block (13); the other end of the connecting seat (2) is provided with a mounting groove (7); the mounting seat (8) is installed inside the mounting groove (7); a limiting groove (9) is provided on the outside of the mounting seat (8); the other end of the connecting seat (2) is provided with a groove (10); one side of the groove (10) is provided with a guide groove (11); the limiting column (12) is connected to the inside of the guide groove (11); the moving block (13) is fixedly connected to one end of the limiting column (12); the moving block (13) is located inside the groove (10); and the needle handle (4) is fixedly connected to one end of the mounting seat (8).

2. The convenient-to-use skin opener according to claim 1, characterized in that: One end of the needle handle (4) is provided with a needle tip (5), and the shape of the needle tip (5) is a semi-conical special shape, and the semi-conical special shape is the remaining part after the cross section through the central axis of the cone is cut. The semi-conical special shape is further provided with a filling block with a first inclined surface (6) relative to the missing part of the cone before cutting, and the filling block is integrally connected to the needle handle (4) and the semi-conical special shape.

3. The convenient skin opener according to claim 1, characterized in that: A placement groove (3) is provided on the outside of the connection seat (2), and an anti-slip protrusion (17) is fixedly connected to the inside of the placement groove (3).

4. The convenient skin opener according to claim 1, characterized in that: A deep groove (14) is provided on one side of the groove (10), and a tension spring (15) is provided inside the deep groove (14).

5. The convenient-to-use skin opener according to claim 4, characterized in that: One end of the tension spring (15) is fixedly connected to the bottom side of the moving block (13), and the other end of the tension spring (15) is fixedly connected to the bottom of the deep groove (14).

6. The convenient skin opener according to claim 1, characterized in that: A plane (16) is provided on the outer side of the mounting seat (8), and an inclined surface (18) is provided on one end of the limiting column (12).

7. The convenient skin opening device according to claim 1, characterized in that: One end of the limiting column (12) matches the limiting groove (9), and the mounting seat (8) matches the mounting groove (7).

8. The convenient skin opener according to claim 1, characterized in that: The handle (1) has a diameter of 0.7 cm and a length of 8 cm.

9. The convenient skin opener according to claim 1, characterized in that: The connecting seat (2) has a diameter of 1 cm and a longitudinal length of 1.5 cm.

10. The convenient-to-use skin opener according to claim 1, characterized in that: The needle handle (4) has a total length of 5 cm and a diameter of 1.2-1.6 mm.

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