CN218391219U

CN218391219U - Oral cavity scalpel

Info

Publication number: CN218391219U
Application number: CN202222022076.7U
Authority: CN
Inventors: 王国庆; 王献利; 王献刚; 郭琦; 郝志红; 王潇轶; 赵西博; 刘会娟; 李芳�
Original assignee: Anyang Sixth People's Hospital (anyang Stomatological Hospital)
Current assignee: Anyang Sixth People's Hospital (anyang Stomatological Hospital)
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2023-01-31
Anticipated expiration: 2032-08-02

Abstract

The application discloses an oral cavity scalpel, including cutter body, blade, the cutter body include the thumb wheel, the sword holds in the palm, the anterior fixed blade in L shape one side that the sword held in the palm, the L shape another side that the sword held in the palm is articulated with the connecting rod, the L shape corner that the sword held in the palm rotates and installs on the shell, the connecting rod is articulated with the sliding sleeve, sliding sleeve and shell are along fore-and-aft direction sliding connection, the sliding sleeve hole closes with the screw rod that the pivot set up soon, the pivot rotates in installing the shell hole, be provided with the thumb wheel in the pivot, the shell is provided with the radial breach that runs through to the shell outside, realize the adjustment of blade and cutter body contained angle size, and through the transmission of the vice mechanism of spiral, when realizing the blade atress, the vice emergence of spiral is rotated, realize that the blade atress in-process still remains stable.

Description

Oral cavity scalpel

Technical Field

The utility model relates to an oral scalpel, which belongs to the technical field of medical appliances.

Background

To the patient that needs the implantation restoration or suffer from periodontal disease, when carrying out the operation, because the restriction in oral cavity space, especially when carrying out the operation of tongue palate side, present scalpel can not change blade and handle of a knife contained angle, and the doctor is difficult accurate to the position of ideal, influences the operation effect, even some oral cavity scalpels can change the contained angle of blade handle, but adopt elastic deformation mechanism to change the contained angle of blade and handle usually, poor stability.

Disclosure of Invention

The utility model discloses aim at: the utility model provides an oral cavity scalpel which can drive a sliding sleeve to move and a connecting rod to move through a spiral transmission mechanism by stirring the dial wheel to rotate, drive one edge of a knife rest to swing, and drive a blade fixed on the knife rest to swing so as to change the included angle between the blade and a scalpel body.

The technical scheme of the utility model is realized like this: an oral cavity scalpel comprises a scalpel body 1 and a blade 2, wherein the scalpel body comprises a thumb wheel 101, a scalpel holder 102 and a shell 109, one side of an L shape of the scalpel holder 102 extends towards the front side, a front fixed blade 2 is arranged at the front part of one side of the L shape of the scalpel holder 102, the other side of the L shape of the scalpel holder 102 extends towards the lower side, the lower end of the other side of the L shape of the scalpel holder 102 is hinged with the front end of a connecting rod 107, the L-shaped corner of the scalpel holder 102 is rotatably arranged on the shell 109, the rear end of the connecting rod 107 is hinged with the front end of a sliding sleeve 104, the sliding sleeve 104 is slidably connected with the front part of the shell 109 along the front and back directions, an inner hole of the sliding sleeve 104 is screwed with a screw rod arranged at the front part of a rotating shaft 108, the rotating shaft 108 is rotatably arranged in an inner hole at the rear part of the shell 109, the thumb wheel 101 is arranged on the rotating shaft 108, and the shell 109 is provided with a radial gap 115 penetrating to the outer side of the shell 109.

Preferably, the sliding sleeve 104 is in clearance fit with the inner cavity of the outer shell 109, the upper end and the lower end of the sliding sleeve 104 are respectively provided with a sliding beam 111 protruding outwards along the axial direction of the sliding sleeve 104, and the sliding beam 111 is slidably connected with a sliding groove 112 arranged on the outer shell 109.

Preferably, the rear end of the rotating shaft 108 is provided with a limit ring 103, a position of the housing 109 corresponding to the limit ring 103 is provided with a limit groove 114 for accommodating the limit ring 103 and preventing the limit ring 103 from axially moving, and the middle part and the rear part of the rotating shaft 108 are rotatably mounted in an inner hole of the housing 109.

Preferably, the rear side of the middle part of the rotating shaft 108 is provided with a cylindrical thumb wheel 101, the housing 109 is provided with a thumb wheel groove 113 at a position corresponding to the thumb wheel 101 for accommodating the thumb wheel 101, and the left and right sides of the thumb wheel groove 113 are provided with radial notches 115 penetrating to the outer side of the housing 109 for a doctor to poke the thumb wheel 101 from the outer side of the housing 109.

Preferably, the front end of the housing 109 is provided with an axial notch 110 penetrating vertically, so that the L-shaped side of the blade holder 102 is avoided when the L-shaped side of the blade holder 102 drives the blade 2 to swing.

Preferably, the housing 109 is a structure that can be split left and right, and the housing 109 is formed by buckling the left part and the right part.

Preferably, the front end of the connecting rod 107 is fork-shaped, the lower end of the other L-shaped edge of the cutter holder 102 is located in the middle of the fork-shaped end of the connecting rod 107, the middle of the second pin shaft 117 is rotatably connected with the lower end of the other L-shaped edge of the cutter holder 102, and two ends of the second pin shaft 117 are fixed on the fork-shaped end of the connecting rod 107.

Preferably, the front part of the housing 109 is hollow for accommodating the position change of the sliding sleeve 104, the connecting seat 105, the connecting rod 107 and the other L-shaped edge of the knife holder 102.

Preferably, the L-shaped corner of the knife holder 102 is rotatably mounted in the middle of the first pin 106, two ends of the first pin 106 are fixed in pin holes 116 formed in the front portion of the housing 109, and the first pin 106 is horizontally arranged along the left-right direction.

Compared with the prior art, the utility model has the advantages of as follows:

the thumb wheel that the pivot that rotates the installation through the shell set up rotates, the pivot is connected with sliding sleeve screw pair, sliding sleeve straight line slides and holds in the palm the swing through link mechanism drive L shape sword, realize the adjustment of blade and cutter body contained angle size, and through the transmission of screw pair mechanism, when realizing the blade atress, the screw pair does not take place to rotate, realize that blade atress in-process still remains stable, the thumb wheel is located cutter body middle part rear side, hide in the cutter body, through running through the manual thumb wheel of stirring of breach, structural design is exquisite.

Drawings

Fig. 1 is a schematic view of the overall structure of the oral scalpel.

Fig. 2 is a first structural view of the oral scalpel in a dissecting mode.

Fig. 3 is a second structural view of the oral scalpel.

Fig. 4 is a schematic view of the oral scalpel with the housing removed.

Fig. 5 is a schematic structural view of the housing.

Description of reference numerals: 1-cutter body, 2-cutter blade, 101-thumb wheel, 102-cutter holder, 103-spacing ring, 104-sliding sleeve, 105-connecting seat, 106-pin shaft I, 107-connecting rod, 108-rotating shaft, 109-shell, 110-axial notch, 111-sliding beam, 112-sliding groove, 113-thumb wheel groove, 114-spacing groove, 115-radial notch, 116-pin hole and 117-pin shaft II.

Detailed Description

Referring to fig. 1-5, the utility model discloses an oral scalpel, which comprises a scalpel body 1 and a blade 2, wherein when the scalpel body 1 is held by the right hand of a doctor, the upper, lower, left, right, front and back directions of the doctor are respectively defined to describe the present application, the scalpel body comprises a thumb wheel 101, a scalpel holder 102, a limit ring 103, a sliding sleeve 104, a connecting seat 105, a first pin shaft 106, a connecting rod 107, a rotating shaft 108, a shell 109, and a second pin shaft 117, one side of the L-shape of the scalpel holder 102 extends forwards, the front part of the L-shape of the scalpel holder 102 adopts a detachable mode to fix the blade 2, the method of fixing the blade 2 by the scalpel holder 102 is a conventional technical means in the field, and is not described herein any more, the other side of the L-shape of the scalpel holder 102 extends downwards, the lower end of the other side of the L-shape of the scalpel holder 102 is hinged with the front end of the connecting rod 107, the corner of the L-shape of the scalpel holder 102 is rotatably installed at the middle part of the first pin shaft 106, two ends of a first pin shaft 106 are fixed in a pin hole 116 arranged at the front part of the shell 109, the first pin shaft 106 is horizontally arranged along the left-right direction, the rear end of the connecting rod 107 is hinged with the front end of the connecting seat 105, the rear end of the connecting seat 105 is fixed at the front end of the sliding sleeve 104, the sliding sleeve 104 is of a hollow structure, an inner hole of the sliding sleeve 104 is connected with a screw rod arranged at the front part of the rotating shaft 108 through a screw pair, the sliding sleeve 104 is connected with a cavity arranged at the front part of the shell 109 in a sliding way along the front-back direction, the sliding sleeve 104 is in clearance fit with the inner cavity of the shell 109, the upper end and the lower end of the sliding sleeve 104 are respectively provided with a sliding beam 111 which protrudes outwards along the axial direction of the sliding sleeve 104, the sliding beam 111 is connected with a sliding groove 112 arranged on the shell 109 in a sliding way, the rear side of the middle part of the rotating shaft 108 is provided with a cylindrical thumb wheel 101, the thumb wheel groove 113 is arranged at the position of the shell 109 corresponding to accommodate the thumb wheel 101, the left side and the right side of the thumb wheel groove 113 are both provided with radial notches 115 penetrating to the outer side of the shell 109, and are used for a doctor to poke the thumb wheel 101 from the outer side of the shell 109.

The rear end of the rotating shaft 108 is provided with a limiting ring 103, a limiting groove 114 is formed in the position, corresponding to the limiting ring 103, of the shell 109 and used for containing the limiting ring 103, the axial size of the limiting ring 103 is in clearance fit with the axial size of the limiting groove 114 and used for preventing the limiting ring 103 from axially moving, and the middle portion and the rear portion of the rotating shaft 108 are rotatably installed in an inner hole of the shell 109.

The front end of the shell 109 is provided with an axial notch 110 which penetrates through the shell up and down and is used for avoiding one side of the L shape of the cutter holder 102 when the L shape of the cutter holder 102 drives the blade 2 to swing.

The front end of the connecting rod 107 is fork-shaped, the lower end of the other L-shaped edge of the cutter holder 102 is positioned in the middle of the fork-shaped edge of the connecting rod 107, the middle of the second pin shaft 117 is rotatably connected with the lower end of the other L-shaped edge of the cutter holder 102, and two ends of the second pin shaft 117 are fixed on the fork-shaped edge of the front end of the connecting rod 107.

The housing 109 is a structure which can be split left and right, that is, the housing 109 is formed by buckling a left part and a right part.

The front part of the shell 109 is a hollow structure and is used for adapting to the position change of the other L-shaped edge of the sliding sleeve 104, the connecting seat 105, the connecting rod 107 and the knife holder 102.

The housing 109 is coaxially disposed with the connecting section 105 and the rotating shaft 108.

Before a doctor operates, the blade 2 is fixed on one L-shaped edge of the blade holder 102, the mode of fixing the blade on the blade holder 102 is consistent with the method of fixing the blade by a conventional scalpel, a doctor rotates the thumb wheel 101 according to an operation position in an oral cavity, the thumb wheel 101 rotates, the rotating shaft 108 rotates, the sliding sleeve 104 slides along the sliding groove 112 to drive the connecting seat 105 to move, and the connecting rod 107 drives the blade holder 102 to swing along the first pin shaft 106, so that the included angle between the blade 2 and the scalpel body 1 is adjusted to meet the requirements of the doctor in the operation process, and the self-locking spiral pair connection is adopted between the rotating shaft 108 and the sliding sleeve 10, so that the position of the sliding sleeve 104 cannot be changed when the blade 2 is stressed.

Claims

1. The utility model provides an oral cavity scalpel, includes cutter body (1), blade (2), its characterized in that: the cutter body comprises a thumb wheel (101), a cutter holder (102) and a shell (109), one L-shaped side of the cutter holder (102) extends towards the front side, the front part of one L-shaped side of the cutter holder (102) is provided with a fixed blade (2), the other L-shaped side of the cutter holder (102) extends towards the lower side, the lower end of the other L-shaped side of the cutter holder (102) is hinged with the front end of a connecting rod (107), the L-shaped corner of the cutter holder (102) is rotatably installed on the shell (109), the rear end of the connecting rod (107) is hinged with the front end of a sliding sleeve (104), the sliding sleeve (104) is slidably connected with the front part of the shell (109) along the front-back direction, an inner hole of the sliding sleeve (104) is rotatably closed with a screw rod arranged at the front part of a rotating shaft (108), the rotating shaft (108) is rotatably installed in an inner hole at the rear part of the shell (109), the thumb wheel (101) is arranged on the rotating shaft (108), and the outer shell (109) is provided with a radial notch (115) penetrating to the outer side of the shell (109).

2. The oral surgical knife of claim 1, wherein: the sliding sleeve (104) and the front part of the shell (109) are in sliding connection, and the structure is as follows: the sliding sleeve (104) is in clearance fit with the inner cavity of the shell (109), the upper end and the lower end of the sliding sleeve (104) are respectively provided with a sliding beam (111) protruding outwards along the axial direction of the sliding sleeve (104), and the sliding beam (111) is in sliding connection with a sliding groove (112) arranged on the shell (109).

3. The oral surgical knife of claim 1, wherein: the structure of the rotating shaft (108) rotatably mounted in the inner hole at the rear part of the shell (109) is as follows: the rear end of the rotating shaft (108) is provided with a limiting ring (103), a limiting groove (114) is formed in the position, corresponding to the limiting ring (103), of the shell (109) and used for containing the limiting ring (103) and preventing the limiting ring (103) from axially moving, and the middle portion and the rear portion of the rotating shaft (108) are rotatably installed in an inner hole of the shell (109).

4. The oral surgical knife of claim 1, wherein: the rear side of the middle of the rotating shaft (108) is provided with a cylindrical shifting wheel (101), a shifting wheel groove (113) is formed in the position, corresponding to the shifting wheel (101), of the shell (109) and used for accommodating the shifting wheel (101), and radial notches (115) penetrating to the outer side of the shell (109) are formed in the left side and the right side of the shifting wheel groove (113) and used for a doctor to shift the shifting wheel (101) from the outer side of the shell (109).

5. The oral surgical knife of claim 1, wherein: the front end of the shell (109) is provided with an axial notch (110) which penetrates through the shell up and down and is used for avoiding the L-shaped side of the cutter holder (102) when the L-shaped side of the cutter holder (102) drives the blade (2) to swing.

6. The oral surgical knife of any one of claims 1-5, wherein: the shell (109) is of a structure which can be split left and right, and the shell (109) is formed by buckling the left part and the right part.

7. The oral surgical knife of any one of claims 1-5, wherein: the front end of the connecting rod (107) is fork-shaped, the lower end of the other L-shaped edge of the cutter holder (102) is positioned in the middle of the fork-shaped end of the connecting rod (107), the middle of a second pin shaft (117) is rotatably connected with the lower end of the other L-shaped edge of the cutter holder (102), and two ends of the second pin shaft (117) are fixed on the fork-shaped end of the connecting rod (107).

8. The oral surgical knife of any one of claims 1-5, wherein: the front part of the shell (109) is of a hollow structure and is used for adapting to the position change of the other L-shaped edge of the sliding sleeve (104), the connecting seat (105), the connecting rod (107) and the knife holder (102).

9. The oral surgical knife of any one of claims 1-5, wherein: the L-shaped corner of the cutter holder (102) is rotatably arranged in the middle of the first pin shaft (106), two ends of the first pin shaft (106) are fixed in pin holes (116) formed in the front of the shell (109), and the first pin shaft (106) is horizontally arranged along the left-right direction.