CN217828104U

CN217828104U - Dental spatula

Info

Publication number: CN217828104U
Application number: CN202220570628.5U
Authority: CN
Inventors: 周海锋
Original assignee: Shanghai Shenyi Medical Technology Co ltd
Current assignee: Shanghai Shenyi Medical Technology Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-11-18
Anticipated expiration: 2032-03-16

Abstract

The upper end of the connecting rod is connected with the lower end face of the scraping blade, and the edge of the scraping blade is provided with a blade part; a slit for the scraped object to enter is arranged between the edge of the upper opening of the collecting cylinder and the edge of the scraping blade, and the lower end of the collecting cylinder is in movable connection with the connecting rod in the axial direction. The utility model discloses a bone shape of hole inner wall is revised to the marginal cutting part of doctor-bar, is scraped and is got the bone fragment, utilizes the seam that collecting vessel upper shed and cutting part clearance formed as the passageway, supplies the bone fragment to pass through and accomplish the collection.

Description

Dental spatula

Technical Field

The utility model relates to a medical appliance, in particular to a dental spatula.

Background

The tooth is directly related to the living standard of people, and the dental implant is an ideal tooth repairing means. As an implant with higher difficulty coefficient, the wing-through implant operation implants with special length into cheekbones and winged bones with the best bone quality of a human body so as to enhance the overall stability of the implant and be beneficial to patients with maxillary dentition deficiency and serious deficiency of residual bone mass.

The alveolar bone can be atrophied after the tooth falls off, so that some bones need to be supplemented when the tooth is implanted, and the autologous bone is usually selected; when obtaining the autogenous bone, the bone fragments are drilled, ground or scraped. When the zygomatic implantation operation is carried out, the outer side wall of the maxillary sinus needs to be windowed, and the maxillary sinus mucosa is separated and then the hole is prepared step by step. In the operation process, if the implant with larger length is not matched with the hole, a bone scraping tool is needed to trim the inner wall of the hole. Because the position of planting by penetrating the wing is deeper, bone fragments can be scattered when the bone is scraped and repaired, and the bone fragments are difficult to be accurately collected in time, which can influence the planting of the implant.

Disclosure of Invention

The utility model aims to solve the existing problems and provide a dental spatula.

In order to achieve the purpose, the utility model adopts the technical proposal that the scraper comprises a scraper blade, a connecting rod and a collecting cylinder. Wherein, the upper end of the connecting rod is vertically connected with the lower end surface of the scraping blade, and the edge of the scraping blade is provided with an edge part; a gap for the scraped objects (bone fragments) to enter the collecting cylinder is arranged between the edge of the upper opening of the collecting cylinder and the edge of the scraping blade, and the lower end of the collecting cylinder is in movable connection with the connecting rod in the axial direction.

The inner wall of the collecting cylinder is provided with a sliding block; the lower end of the connecting rod is connected with the upper end face of the fixed seat, and the outer wall of the fixed seat is provided with a first groove for the sliding block to rotate circumferentially and a second groove for the sliding block to slide axially; the first groove is communicated with the second groove.

Wherein, the inner wall of the collecting cylinder is symmetrically provided with two sliding blocks, and the corresponding two groups of first grooves and second grooves are also symmetrically arranged on the outer wall of the fixed seat.

Wherein, the rear end of the second groove is set to be opened, and the slide block can withdraw from the rear end.

Wherein, the lower extreme and the handle of fixing base are connected.

Wherein, the outer wall of handle is equipped with a plurality of pawl structures that prevent to skid, take off the hand.

Wherein the handle body section of the handle is a polyhedral shape which can prevent rolling.

The cross section of the collecting cylinder, the sheet body of the scraping blade and the outer wall of the fixing seat are all circular.

Wherein, the junction of the upper end of connecting rod and doctor-bar lower extreme face still is equipped with the conical surface that is used for additional strengthening.

Compared with the prior art, the utility model corrects the bone shape of the inner wall of the hole through the edge part of the scraping blade, scrapes bone fragments, and takes the gap formed by the gap between the upper opening of the collecting cylinder and the edge part as a channel for the bone fragments to pass and finish the collection; the collecting cylinder can axially advance and retreat along the moving track on the outer wall of the fixed seat, so that the bone fragments can be poured conveniently; the manual operation of a doctor is facilitated due to the inverted tooth structure and the polygonal cross section on the handle.

Drawings

FIG. 1 is a schematic structural view of a spatula head;

FIG. 2 is a schematic structural view of the head of the spatula;

FIG. 3 is a schematic structural view of a collection cartridge;

FIG. 4 is a schematic structural view of a collection cartridge;

fig. 5 is a schematic structural diagram of an embodiment of the present invention;

referring to the attached drawings, the scraper blade 1, the connecting rod 2, the collecting cylinder 3, the sliding block 4, the fixing seat 5, the first groove 6, the second groove 7, the handle 8 and the inverted tooth structure 9.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings; for convenience of description, the upper part of the drawing sheet is "upper" and the lower part of the drawing sheet is "lower".

Referring to fig. 1 and 2, fig. 1 and 2 show a spatula head of a dental spatula according to an embodiment of the present invention, the spatula head includes a circular scraping blade, a connecting rod, a collecting cylinder and a fixing base. The upper end of the connecting rod is vertically connected with the circle center of the lower end face of the scraping blade, and the lower end of the connecting rod is connected with the upper end face of the fixing seat.

The edge of the scraping blade is a circular edge part which is used for scraping bones. The lower end surface of the scraping blade is correspondingly provided with a collecting cylinder, and the edge of the upper opening of the collecting cylinder is separated from the edge of the scraping blade by a small distance to form a slit for the scraped objects (bone fragments) to enter the collecting cylinder.

Referring to fig. 5, the spatula head is connected with the upper end of the handle through the lower end of the fixing seat. Preferably, the two can be detachably connected so as to replace the wear consumables.

When in use, the spatula head is stretched into the hole and is pulled along the axial direction to and fro along the inner wall of the hole so as to cut and scrape the bone wall. When the scraped bone fragments are piled up under the action of downward movement of the blade part, the bone fragments enter the interior of the collecting cylinder along the annular seam. After the completion, take out and scrape the spoon head, the bone bits can be taken out of the hole along with the collecting vessel together.

Further, the lower end of the collecting cylinder is movably connected with the connecting rod in the axial direction, so that the bone fragments can be poured conveniently. Referring to fig. 3 and 4 in particular, the collecting cylinder in the present embodiment is configured to have two ends through, and the cross section is circular; two sliders which protrude inwards in the radial direction are symmetrically arranged on the inner wall of the opening at the lower end of the slider. The outer wall both sides of fixing base then correspond and are equipped with two sets ofly and supply the slider to make circumferential direction's first groove (the arc wall that sets up along outer wall circumference), supply the slider to make the gliding second groove of axial (the straight groove that sets up along the axial), the upper end in second groove is put through to the tip in first groove, constitutes the removal track jointly. The collecting cylinder forms an axially movable connection with respect to the connecting rod by sliding of the slider in the movement track.

When taking out the bone fragments, the collecting cylinder is rotated circumferentially first, and the rotation can be stopped by the groove wall when the sliding block falls into the upper end of the second groove. Then, the collecting cylinder is slid backward in the axial direction, and the distance between the collecting cylinder and the scraper is increased, namely, the collecting cylinder is completely withdrawn. At the moment, the scraping spoon head is slightly swung by a hand, so that the bone fragments are poured out; then the original path is reset, and the operation can be continued.

Preferably, referring to fig. 1, the diameter of the fixed seat is larger than that of the front end of the handle, the rear end of the second groove is provided with an opening structure, and the sliding block can completely withdraw from the collecting cylinder from the rear end of the second groove. The backward distance of the collecting cylinder can be increased, the length of the groove is reduced, and the inside of the collecting cylinder is convenient to clean.

Preferably, the connecting part of the upper end of the connecting rod and the lower end face of the scraping blade is also provided with a conical surface, so that the structural strength can be enhanced, and the connecting rod is not easy to break off in operation.

In addition, the lower end of the collecting cylinder can be closed, and can form a seal with the outer wall of the connecting rod through a seal ring and other structures; the final effect is similar to the above-described solution. The width of the seam, the length of the collecting cylinder and the distance that the collecting cylinder can retreat can be selected conventionally according to the actual requirements of operation.

Referring to fig. 5, the outer wall of the handle is provided with a plurality of pawl structures for preventing slipping and falling off the hand. The section of the handle body of the handle is designed to be six-sided which can prevent rolling. In this embodiment, the tangent plane of pawl structure, six shape of face sets up on the outer wall of handle outer wall bulge circumferentially at the interval, more does benefit to the operation.

The embodiments of the present invention have been described in conjunction with the accompanying drawings and examples, the structures of which are not intended to limit the present invention, and those skilled in the art can make modifications as required, and all changes and modifications within the scope of the appended claims are within the scope of protection.

Claims

1. A dental spatula, characterized in that: comprises a scraping blade, a connecting rod and a collecting cylinder; the upper end of the connecting rod is connected with the lower end face of the scraping blade, and the edge of the scraping blade is provided with an edge part;

a slit for the scraped object to enter is arranged between the edge of the upper opening of the collecting cylinder and the edge of the scraping blade, and the lower end of the collecting cylinder is in movable connection with the connecting rod in the axial direction.

2. The dental spatula of claim 1, wherein: the inner wall of the collecting cylinder is provided with a sliding block; the lower end of the connecting rod is connected with the upper end face of the fixed seat, and the outer wall of the fixed seat is provided with a first groove for the sliding block to rotate circumferentially and a second groove for the sliding block to slide axially; the first groove is communicated with the second groove.

3. The dental spatula of claim 2, wherein: the inner wall of the collecting cylinder is symmetrically provided with two sliding blocks, and the corresponding two groups of first grooves and second grooves are also symmetrically arranged on the outer wall of the fixed seat.

4. The dental spatula of claim 2, wherein: the rear end of the second groove is opened, and the sliding block can withdraw from the rear end.

5. The dental spatula of claim 2, wherein: the lower end of the fixed seat is connected with the handle.

6. The dental spatula of claim 5, wherein: the outer wall of the handle is provided with a plurality of pawl structures for preventing slipping and falling off the hand.

7. The dental spatula of claim 5, wherein: the handle body section of the handle is designed to be a polygonal shape which can prevent rolling.

8. The dental spatula of any one of claims 2-7, wherein: the cross section of the collecting cylinder, the sheet body of the scraping blade and the outer wall of the fixing seat are all circular.

9. The dental spatula of claim 1, wherein: the junction of the upper end of the connecting rod and the lower end face of the scraping blade is also provided with a conical surface for reinforcing the structure.