CN210843525U

CN210843525U - Dental broach

Info

Publication number: CN210843525U
Application number: CN201921375344.5U
Authority: CN
Inventors: 李艳红; 刘娟; 李玥晓; 李春; 李星星; 杨雅岚
Original assignee: Yunnan Provincial Stomatological Hospital (yunnan Provincial Stomatological Hospital)
Current assignee: Yunnan Provincial Stomatological Hospital (yunnan Provincial Stomatological Hospital)
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-06-26
Anticipated expiration: 2029-08-22

Abstract

The utility model relates to a dentistry is with pulling out broach, including needle body, rotary mechanism, sleeve and handle, a serial communication port, the needle body pass through rotary mechanism and set up on the handle, rotary mechanism include first straight line rotation section, second straight line rotation section, first curve rotation section and second curve rotation section, first straight line rotation section, second straight line rotation section, first curve rotation section and second curve rotation section can sleeve relatively rotate, needle body detachably sets up the first recess in second straight line rotation section, is provided with the barb on the needle body, sleeve top be provided with and hinder the spinning disk, be provided with anti-skidding line on the face of rotating cylinder periphery. The utility model has simple structure, can conveniently adjust the rotation of the broach, and the adjustment is not limited by the space in the oral cavity, thereby improving the operation efficiency of doctors.

Description

Dental broach

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a dental broach.

Background

Pulpitis and radiculitis are common diseases in the stomatology department, and are generally caused by degeneration and necrosis of pulp tissues in root canals due to bacterial infection. Currently, in the treatment of pulpitis and radiculitis, it is necessary to remove deformed and necrotic pulp tissue in the root canal or cotton twist left in the root canal using a broach.

In order to solve the above problems, chinese patent ZL201120336202.5 provides a novel dental broach comprising a needle body and a needle tip, wherein the needle body is provided with a needle tip at one end thereof to bend the needle tip into an arc shape, thereby solving the problem of difficult adjustment of the angle of the broach, reducing the harm to other parts inside the oral cavity, and it is found in practical use that the novel dental broach overcomes some defects of the straight broach, but the handle and the needle body are integrated, the position of the needle body needs to be adjusted by adjusting the position of the handle, and the rotation angle of the handle is limited by the space of the oral cavity, the needle point position needs to be adjusted greatly, and the risk of injury to other parts inside the oral cavity is increased. In addition, because the handle and the needle body are integrated, the needle can not be used continuously after being used for a plurality of times, and the cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses rotation angle is little to current broach, and the range of regulation is big, easily causes the problem of injury to other positions of oral cavity inside, provides a dentistry is with pulling out the broach, can conveniently adjust to pull out the broach rotation to the adjustment does not receive the space restriction in the oral cavity, improves doctor's operation efficiency, reduces medical cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

the utility model relates to a dental broach, including needle body, rotary mechanism, sleeve and handle, its characterized in that, the needle body pass through rotary mechanism and set up on the handle, rotary mechanism be the curve type, rotary mechanism include first straight line rotation section, second straight line rotation section, first curve rotation section and second curve rotation section, first straight line rotation section one end be provided with bevel gear, the other end sets up fixedly connected with rotary cylinder, rotary cylinder rotates and connects on the handle, second straight line rotation section one end set up bevel gear, the other end is provided with first recess, needle body detachably set up in the first recess of second straight line rotation section, the both ends of first curve rotation section and second curve rotation section all be provided with bevel gear, wherein the bevel gear of first curve rotation section one end is connected with the bevel gear of first straight line rotation section one end, the bevel gear at one end of the second curve rotating section is connected with the bevel gear at one end of the second straight line rotating section, the bevel gear at the other end of the first curve rotating section is connected with the bevel gear at the other end of the second curve rotating section, the middle part of the extending direction of the second straight line rotating section is provided with a second groove, one end of the sleeve is rotatably connected with the end part of the rotating cylinder, the other end of the sleeve is rotatably arranged in the second groove of the second straight line rotating section, the outer surfaces of the first straight line rotating section, the first curve rotating section and the second curve rotating section are respectively provided with two annular third grooves, annular convex ribs are arranged at corresponding positions on the inner surface of the sleeve, and the third grooves are rotatably matched with the convex ribs, so that the first straight line rotating section, the second straight line rotating section, the first curve rotating section and the second curve rotating section can rotate relative to the sleeve, the needle body on be provided with the barb, the sleeve be close to the top of a rotatory section of thick bamboo one side and fixedly be provided with and hinder the spinning piece.

Furthermore, the outer side surface of the rotating cylinder is provided with anti-skid grains.

Furthermore, the first recess of second sharp rotation section in be provided with the internal thread, the one end of needle body be provided with the external screw thread, the needle body pass through helicitic texture with the first recess of second sharp rotation section and realize detachable and be connected.

The utility model discloses when using, stretch into the pulp chamber with the needle point, through the piece that hinders soon on the finger fixed sleeve, rotate the rotating cylinder through two other fingers, the rotating cylinder drives first straight line rotation section rotatory, thereby first straight line rotation section drives first curve rotation section through the bevel gear of one section one end setting, second curve rotation section rotates, and then drive second straight line rotation section and rotate, thereby it is rotatory to drive the needle point, make the doctor not need the twist grip can realize the rotation of needle point, thereby it twists with fingers to get rid of the necrotic pulp tissue of deformation in the root canal or leave over the cotton in the root canal cleanly. In addition, the outer side surface of the rotating cylinder is provided with anti-slip lines, so that a doctor can control the forward rotation or the reverse rotation of the needle point better. Through setting up the needle body into detachable, only need change the needle body, need not give up needle body and handle are whole, reduced medical cost.

The utility model has simple structure, can conveniently adjust the rotation of the broach, and the adjustment is not limited by the space in the oral cavity, thereby improving the operation efficiency of doctors.

Drawings

Fig. 1 is a schematic structural diagram of the present invention. Wherein, 1 needle body, 2 rotary mechanism, 21 first straight line rotation section, 22 second straight line rotation sections, 221 first recess, 23 first curve rotation section, 24 second curve rotation section, 211 rotatory section of thick bamboo, 3 sleeves, 4 handles, 5 second recesses, 6 barbs, 7 anti-skidding line, 8 hinder and revolve the piece, 9 convex ribs, 10 third recesses.

Detailed Description

The following is further described with reference to the accompanying drawings.

Referring to fig. 1, the utility model relates to a dental broach, including needle body 1, rotary mechanism 2, sleeve 3 and handle 4, characterized in that, needle body 1 set up on handle 4 through rotary mechanism 2, rotary mechanism 2 be the curve type, rotary mechanism 2 include first straight line rotation section 21, second straight line rotation section 22, first curve rotation section 23 and second curve rotation section 24, first straight line rotation section 21 one end set up the bevel gear, the other end sets up fixedly connected with rotary cylinder 211, rotary cylinder 211 rotates and connects on handle 4, second straight line rotation section 22 one end set up the bevel gear, the other end sets up first recess 221, needle body 1 detachably set up in the first recess 221 of second straight line rotation section, the both ends of first curve rotation section 23 and second curve rotation section 24 all be provided with bevel gear, wherein the bevel gear at one end of the first curved rotating section 23 is connected with the bevel gear at one end of the first linear rotating section 21, the bevel gear at one end of the second curved rotating section 24 is connected with the bevel gear at one end of the second linear rotating section 22, the bevel gear at the other end of the first curved rotating section 23 is connected with the bevel gear at the other end of the second curved rotating section 24, the middle part of the extension direction of the second linear rotating section 22 is circumferentially provided with a second groove 5, one end of the sleeve 3 is rotatably connected with the end part of the rotating cylinder 211, the other end is rotatably arranged in the second groove 5 of the second linear rotating section 22, the outer surfaces of the first curved rotating section 21, the first curved rotating section 23 and the second curved rotating section 24 are respectively provided with two circumferential third grooves 10, and the corresponding positions on the inner surface of the sleeve 3 are provided with circumferential convex ribs 9, the third groove 10 is rotatably matched with the convex rib 9, so that the first linear rotating section 21, the second linear rotating section 22, the first curve rotating section 23 and the second curve rotating section 24 can rotate relative to the sleeve 3, the needle body 1 is provided with the barb 6, and the top of the sleeve 3, which is close to one side of the rotating cylinder 211, is fixedly provided with the rotation blocking sheet 8.

Furthermore, the outer side surface of the rotary cylinder 211 is provided with anti-skid grains 7.

Furthermore, the first groove 221 of the second linear rotation section is internally provided with an internal thread, one end of the needle body 1 is provided with an external thread, and the needle body is detachably connected with the first groove 221 of the second linear rotation section through a thread structure.

When using, stretch into the pulp chamber with the needle point, through the piece that hinders soon on the fixed sleeve of a finger, rotate rotatory section of thick bamboo through two other fingers, rotatory section of thick bamboo drives first straight line rotation section rotatory, thereby first straight line rotation section drives first curve rotation section through the bevel gear that one end set up, second curve rotation section rotates, and then drive the rotation of second straight line rotation section, thereby it is rotatory to drive the needle point, make the doctor need not rotate the rotation that the handle can realize the needle point, thereby quick, cleanly get rid of the interior necrotic pulp tissue of deformation of root canal or leave over the cotton of root canal and twist with fingers. In addition, the outer side surface of the rotating cylinder is provided with anti-slip lines, so that a doctor can control the forward rotation or the reverse rotation of the needle point better. Through setting up the needle body into detachable, only need change the needle body, need not give up needle body and handle are whole, reduced medical cost.

Moreover, it should be understood that the above description is only exemplary of the preferred embodiments of the present invention, and is not intended to limit the invention in any way. All the simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A dental broach comprises a needle body (1), a rotating mechanism (2), a sleeve (3) and a handle (4), and is characterized in that the needle body (1) is arranged on the handle (4) through the rotating mechanism (2), the rotating mechanism (2) is in a curve shape, the rotating mechanism (2) comprises a first straight line rotating section (21), a second straight line rotating section (22), a first curve rotating section (23) and a second curve rotating section (24), one end of the first straight line rotating section (21) is provided with a bevel gear, the other end of the first straight line rotating section is provided with a rotating cylinder (211), the rotating cylinder (211) is rotatably connected on the handle (4), one end of the second straight line rotating section (22) is provided with the bevel gear, the other end of the second straight line rotating section is provided with a first groove (221), the needle body (1) is detachably arranged in the first groove (221) of the second straight line rotating section, two ends of each of the first curve rotating section (23) and the second curve rotating section (24) are respectively provided with a bevel gear, wherein the bevel gear at one end of the first curve rotating section (23) is connected with the bevel gear at one end of the first straight line rotating section (21), the bevel gear at one end of the second curve rotating section (24) is connected with the bevel gear at one end of the second straight line rotating section (22), the bevel gear at the other end of the first curve rotating section (23) is connected with the bevel gear at the other end of the second curve rotating section (24), a second groove (5) is circumferentially arranged in the middle of the extending direction of the second straight line rotating section (22), one end of the sleeve (3) is rotatably connected to the end of the rotating cylinder (211), the other end of the sleeve is rotatably arranged in the second groove (5) of the second straight line rotating section (22), and the outer surfaces of the first straight line rotating section (21), the first curve rotating section (23) and the second curve rotating section (24) are respectively provided with two circumferential bevel gears Third recess (10), the internal surface of sleeve (3) on the relevant position be provided with circumferential fin (9), third recess (10) and the rotatable cooperation of fin (9), thereby make first straight line rotatory section (21), second straight line rotatory section (22), first curve rotatory section (23) and second curve rotatory section (24) can rotate sleeve (3) relatively, needle body (1) on be provided with barb (6), sleeve (3) be close to the fixed rotation blocking piece (8) that is provided with in top of a rotatory section of thick bamboo (211) one side.

2. A dental broach according to claim 1, in which the outer surface of the rotary cylinder (211) is provided with anti-slip threads (7).

3. The dental broach according to claim 1 or 2, wherein an internal thread is provided in the first groove (221) of the second straight rotary segment, an external thread is provided at one end of the needle body (1), and the needle body and the first groove (221) of the second straight rotary segment are detachably connected through a thread structure.