CN215534784U

CN215534784U - Reverse curet

Info

Publication number: CN215534784U
Application number: CN202023046469.9U
Authority: CN
Inventors: 贺石生; 倪海键; 冯超博
Original assignee: Shanghai Tenth Peoples Hospital
Current assignee: Shanghai Tenth Peoples Hospital
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2022-01-18
Anticipated expiration: 2030-12-16

Abstract

The utility model provides a reverse curet, which comprises a rod part, a handle and a curet body, wherein the handle and the curet body are connected through the rod part; the rod part is divided into a first rod part in a straight cylindrical shape and a second rod part which is bent in an arc shape; the handle is connected with the first rod part, and the spoon body is connected with the second rod part; one side of the spoon body, which is far away from the second rod part, is concave and is provided with a groove; the cross section of the spoon body is a rectangle with one arc-shaped side, and the center of the spoon body is higher than the joint of the spoon body and the second rod part; the second rod part is arc-shaped on the horizontal plane and the vertical plane, and the distance between the second rod part and the extension line of the axial lead of the first rod part is gradually increased from the starting point of the second rod part to the spoon body. The reverse curette provided by the utility model has the advantages that the concave curette body is designed at one end far away from the rod part, so that the curette can realize reverse scraping action different from the existing scraping action and is more matched with the force application mode of a doctor; and the rod part bent in an arc shape can meet the requirement of scraping tissues such as bone residues at multiple angles.

Description

Reverse curet

Technical Field

The utility model relates to the technical field of bone curet medical instruments, in particular to a reverse curet.

Background

In bone surgery, it is generally necessary to use a bone curette to scrape, trim and remove excess, diseased bone tissue and other excess tissue. When the traditional bone curette is used, the spoon body needs to be stretched beyond the tissues to be removed, redundant tissues are removed through the drawing action, the risk of damaging surrounding tissues exists, the doctor is not in accordance with the force application habit, and the range and the angle which can be removed by the traditional curette are small due to the limited operation space, so that the problem of unclean tissue scraping is solved.

Therefore, there is a need for a reverse curette to replace the conventional bone curette.

SUMMERY OF THE UTILITY MODEL

The present invention addresses the deficiencies of the prior art by providing a reverse curette.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a reverse curet, which comprises a rod part, a handle and a curet body, wherein the handle and the curet body are connected through the rod part;

the rod part is divided into a first rod part in a straight cylindrical shape and a second rod part which is bent in an arc shape; the handle is connected with the first rod part, and the spoon body is connected with the second rod part;

one side of the spoon body, which is far away from the second rod part, is concave and is provided with a groove; the cross section of the spoon body is a rectangle with one arc-shaped side, and the center of the spoon body is higher than the joint of the spoon body and the second rod part;

the second rod part is arc-shaped on the horizontal plane and the vertical plane, and the distance between the second rod part and the extension line of the axial lead of the first rod part is gradually increased from the starting point of the second rod part to the spoon body.

Further, the surface of the handle is a frosted surface.

Furthermore, the frosting surface is provided with uniform anti-skid grains.

Further, the central angles of the arcs of the second rod parts on the horizontal plane and the vertical plane are both smaller than 90 degrees.

Furthermore, continuous and uniform scales are symmetrically arranged on two sides of the first rod part.

Further, the diameter of the second rod part is gradually reduced along the direction from the first rod part to the spoon body.

Furthermore, the rod part, the handle and the spoon body are of an integrally formed structure.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical effects:

according to the reverse curet, the traditional curet taking and using mode is changed into the curet pushing mode through specific design, so that the force application habit of a doctor is more met; the traditional straight rod part is set to be arc-shaped on the horizontal plane and the vertical plane, so that the requirement of the curette for multi-angle and multi-direction bone residue and redundant tissues scraping in an operation can be met, and the tissues are scraped more thoroughly; the scales on the two sides of the first rod part can ensure that the bone residue and tissues can be scraped more accurately, and the condition that the scraping error is caused because the distance of a traditional bone curette needs to be subjectively judged by a doctor in the use process is avoided; compared with the traditional bone curette, the reverse curette provided by the utility model is more flexible and convenient to use, and can scrape tissues more accurately and thoroughly.

Drawings

FIG. 1 is a schematic structural view of a reverse curette according to the present invention;

FIG. 2 is a schematic view of another angle of the reverse curette of the present invention;

FIG. 3 is a schematic view of the reverse curette of the present invention;

FIG. 4 is a schematic top view of a reverse curette according to the present invention;

wherein the reference numerals are: 1-rod part, 11-first rod part, 12-second rod part, 13-scale, 2-handle, 21-anti-slip stripe, 3-spoon body, 31-first end, 32-second end and 33-groove.

Detailed Description

The utility model provides a reverse curette.

The following detailed description of the present invention is provided in connection with the accompanying drawings for better understanding of the present invention, but not to limit the scope of the present invention.

Referring to fig. 1 and 4, the present invention provides a reverse curette, which comprises a shaft 1, a handle 2 and a spoon body 3 connected with the shaft 1;

the rod part 1 is divided into a first rod part 11 in a straight cylindrical shape and a second rod part 12 in an arc-shaped bending shape; the handle 2 is connected with the first rod part 11, and the spoon body 3 is connected with the second rod part 12; the diameter of the second rod part 12 is gradually reduced along the direction from the first rod part 11 to the spoon body 3;

one side of the spoon body 3 away from the second rod part 12 is concave and is provided with a groove 33; the longitudinal section of the spoon body 3 is semicircular and is used for temporarily storing the scraped bone residues and redundant tissues; the cross section of the spoon body 3 is a rectangle with one pair of arc-shaped sides, and the other pair of sides is a first end 31 and a second end 32 respectively; the center of the spoon body 3 is higher than the joint of the spoon body and the second rod part 12; i.e. the first end 31 is at a greater distance from the point of attachment of the second shaft 12 to the scoop 3 than the second end 32 is at the point of attachment of the second shaft 12 to the scoop 3.

The second rod part 12 is arc-shaped on the horizontal plane and the vertical plane, and the distance between the second rod part 12 and the extension line of the axial lead of the first rod part 11 is gradually increased from the starting point of the second rod part 12 to the direction of the spoon body 3. The second rod part 12 is designed into an arc shape on the horizontal plane and the vertical plane, and the tail end of the second rod part is far away from the axial lead of the straight first rod part 11, so that when the second rod part 12 drives the spoon body 3 to scrape off redundant tissues, the second rod part does not shield the surgical visual field, and the operation range is larger than that of a bone spoon with a straight whole body.

In a preferred embodiment of the present invention, the surface of the handle 2 is a frosted surface, and the frosted surface is provided with uniform anti-slip lines 21. The frosted surface and the non-slip pattern 21 may help the doctor to hold the curette without slipping the hands.

The length of the shaft 1 and the overall specification of the curette are selected according to the surgical requirements without limiting the scope of the utility model.

In a preferred embodiment of the utility model, the central angle of the arc of the second shaft 12 in the horizontal and vertical planes is less than 90 °.

In a preferred embodiment of the present invention, continuous and uniform scales 13 are symmetrically disposed on two sides of the first shaft portion 12, so that when the curette performs a scraping operation, the position of the curette body 3 is precisely controlled, and other tissue injuries caused by the excessive position of the curette body 3 are avoided.

In a preferred embodiment of the utility model, the shaft 1 and the spoon body 3 are of an integrally formed structure.

The use mode of the reverse curette provided by the utility model is as follows: firstly, the curette is held by the handle 2, and the curette is moved to a part needing to be scraped with bone residues or tissues; then, the extending position of the curette is observed through the scale 13, the curette is determined to be not in an over position, the curette body 3 is moved to the front end of the curette body 3 to be scraped, the doctor applies force to scrape the bone slag or tissues through the second end 32 of the curette body 3, and the bone slag and the tissues enter the groove 33 of the curette body 3; finally, the curette is moved to treat the bone chips or tissue within recess 33. And through the arc design of second pole portion 12, can carry out the diversified scraping of multi-angle to the tissue, guarantee to scrape cleanly thoroughly.

The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications or alterations to this practice will occur to those skilled in the art and are intended to be within the scope of this invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.

Claims

1. The reverse curet is characterized by comprising a rod part (1), a handle (2) and a spoon body (3) which are connected through the rod part (1);

the rod part (1) is divided into a first rod part (11) in a straight cylindrical shape and a second rod part (12) in an arc-shaped bending shape; the handle (2) is connected with the first rod part (11), and the spoon body (3) is connected with the second rod part (12);

one side of the spoon body (3) far away from the second rod part (12) is concave and is provided with a groove (33); the cross section of the spoon body (3) is a rectangle with one arc-shaped side, and the center of the spoon body (3) is higher than the joint of the spoon body and the second rod part (12);

the second rod part (12) is arc-shaped on the horizontal plane and the vertical plane, and the distance between the second rod part (12) and the extension line of the axial lead of the first rod part (11) is gradually increased from the starting point of the second rod part (12) to the direction of the spoon body (3).

2. Curette according to claim 1, wherein the surface of the handle (2) is frosted.

3. Curette according to claim 2, wherein the frosted surface is provided with uniform anti-slip lines (21).

4. Curette according to claim 1, wherein the central angle of the arc of the second shaft (12) in the horizontal and vertical planes is less than 90 °.

5. Curette according to claim 1, wherein the first stem portion (11) is bilaterally symmetrically provided with a continuous uniform scale (13).

6. Curette according to claim 1, wherein the diameter of the second shaft (12) decreases gradually in the direction along the first shaft (11) towards the spoon body (3).

7. Curette according to claim 1, wherein the shaft (1) and the spoon body (3) are of an integrally formed construction.