CN216777155U

CN216777155U - Shaping scissors of otology cartilage

Info

Publication number: CN216777155U
Application number: CN202121994007.1U
Authority: CN
Inventors: 王林娥; 龚树生; 张斯�; 王琪妹; 郑文蕊; 朱桢
Original assignee: Beijing Friendship Hospital
Current assignee: Beijing Friendship Hospital
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-06-21
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses otology cartilage shaping scissors, which comprise a scissor handle and a scissor blade; the scissors handle comprises an upper scissors fork body and a lower scissors fork body, the upper scissors fork body and the lower scissors fork body are connected through a rotating shaft, and the upper scissors fork body and the lower scissors fork body both comprise a head part and a holding part which are connected with the blade; the blades comprise an upper blade and a lower blade which are meshed together to shape and shear cartilage, the head of the upper scissors fork body is connected with the upper blade, and the head of the lower scissors fork body is connected with the lower blade; the shape of the upper blade and the lower blade is matched with the shape of the required cartilage; at least one of the upper blade and the lower blade is provided with an arc-shaped cutting edge. Utility model can directly carry out moulding to cartilage through the design of blade and tailor, simple operation, precision height.

Description

Shaping scissors of otology cartilage

Technical Field

The utility model relates to a pair of cartilage scissors, in particular to a pair of ear cartilage shaping scissors, belonging to the field of medical instruments.

Background

At present, surgery is the main treatment method for middle ear progressive and invasive diseases, and the selection of repair materials has important influence on the success rate of surgery, postoperative recovery and long-term effect. The biological and physical properties of cartilage have great advantages in middle ear reconstruction, and therefore cartilage is an ideal repair material in middle ear surgery. The cartilage is mainly from autologous cartilage and allogeneic cartilage, and the cartilage is mainly from tragus cartilage, concha cavum cartilage, fossa deltoidis cartilage, septal cartilage and the like according to the parts. Therefore, cartilage material is widely used in various middle ear surgeries, with autologous cartilage being the best. In operation, tragus cartilage and concha cavity cartilage are often cut for repair of tympanic membrane, reconstruction and repair of posterior wall of external auditory canal, reconstruction of lateral wall of upper tympanic cavity, covering of artificial auditory ossicle surface, etc.

The conventional cartilage cutting method is to cut the cartilage by an ophthalmic scissors after separating the exposed cartilage because the cartilage has a small volume, and then perform secondary cutting according to the required shape and size. The problems with this approach are: 1. the software shearing in the early stage is estimated by doctors, the precision is slightly low, if the software shearing is too large, the cartilage of a patient is greatly damaged, if the software shearing is too small, the software shearing cannot be applied to the following operation, and the operation failure is likely to be caused. 2. Due to the special position of the tragus cartilage, the cutting is inconvenient, the operation time is long, and the secondary shaping operation is needed after the cutting is finished, so that the operation is very complicated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide otology cartilage shaping scissors which can cut cartilage at one time and shape the cartilage at the same time.

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

an ear cartilage shaping scissors comprises a scissors handle and a blade; the scissors handle comprises an upper scissors fork body and a lower scissors fork body, the upper scissors fork body and the lower scissors fork body are connected through a rotating shaft, and the upper scissors fork body and the lower scissors fork body both comprise a head part and a holding part which are connected with the blade; the blades comprise an upper blade and a lower blade which are used for shaping and shearing cartilage through occlusion, the head of the upper scissors fork body is connected with the upper blade, and the head of the lower scissors fork body is connected with the lower blade; the shape of the upper blade and the lower blade is matched with the shape of the required cartilage; at least one of the upper blade and the lower blade is provided with an arc-shaped cutting edge.

Preferably, the head parts and the holding parts of the upper scissor body and the lower scissor body are arranged in an angle.

Preferably, the angle is 120-150 degrees.

Wherein preferably, the upper blade and the lower blade are circular or elliptical.

Preferably, the upper blade is provided with a non-full circular arc or non-full elliptical arc cutting edge, and the lower blade is provided with an arc cutting edge which can be matched with the upper blade to form a full circular or full elliptical shape.

Wherein preferably, the upper blade and the lower blade are both provided with annular blades.

Preferably, the back parts of the upper blade and the lower blade are provided with elastic columns, and the head parts of the upper scissors fork body and the lower scissors fork body are provided with sockets matched with the upper scissors fork body and the lower scissors fork body.

Preferably, the insertion opening is provided with a stopping part for stopping the rotation of the elastic column.

Preferably, the back parts of the upper blade and the lower blade are provided with threaded columns, and the head parts of the upper scissors fork body and the lower scissors fork body are provided with threaded sockets matched with the threaded columns.

Preferably, the upper blade and the lower blade are provided with through holes.

The cartilage shaping scissors can be made into disposable instruments from plastic materials acceptable in the field of medical instruments, and can also be made into metal instruments.

The utility model has the following technical effects:

1. the utility model can directly carry out shaping and cutting on the cartilage through the design of the blade. The blades can be designed into different sizes, and the blades of corresponding types are selected according to the size of the required cartilage, so that the cartilage can be cut more accurately. The shape of the blade can also be designed into the shape of the required cartilage, the blade can directly cut regular cartilage sheets, and the edge is neat and smooth.

2. According to the utility model, the special design of the scissor handle enables the blade and the holding part to form a certain angle, so that the cutting operation of cartilage at a special position is facilitated, the operation is more convenient and faster, and the operation view field is not shielded. When the cartilage is cut, the cartilage is shaped, secondary shaping operation is not needed, and the operation time is shortened.

3. In the utility model, the cutting edges of the upper blade and the lower blade are designed to be non-full-circle cutting edges in order to facilitate the taking out of the cut cartilage without damaging cartilage tissues, the full-circle or full-ellipse cutting edges are formed after occlusion, and the cartilage can be easily taken out of the blade at one side after the upper blade and the lower blade are separated after shaping. The utility model also designs a cartilage taking-out through hole which is arranged on the upper blade and the lower blade, so that even if the cartilage is clamped and embedded, the cartilage can be pushed out by a blunt instrument through the through hole. The design ensures that the cartilage can be completely taken out after being shaped and cut.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present invention;

fig. 2 is a schematic view of a scissor handle according to embodiment 1 of the present invention;

FIG. 3a is a schematic view of the upper blade structure in embodiment 1 of the present invention;

FIG. 3b is a schematic view of the structure of a lower blade in embodiment 1 of the present invention;

FIG. 4 is an enlarged view of the shank attachment portion of the scissor portion A of FIG. 2 in accordance with the present invention;

FIG. 5 is a schematic structural view of example 2 of the present invention;

FIG. 6a is a schematic view of the upper blade structure according to embodiment 2 of the present invention;

FIG. 6b is a schematic view of a lower blade structure according to embodiment 2 of the present invention;

FIG. 7a is a schematic view of the upper blade structure according to embodiment 3 of the present invention;

fig. 7b is a schematic view of a lower blade structure in embodiment 3 of the present invention.

Reference numerals:

a scissor handle 1, an upper scissor body 11, a lower scissor body 12, a rotating shaft 13, an upper head 111, an upper holding part 112, a lower head 121 and a lower holding part 122;

blade 2, upper blade 21, lower blade 22, elastic column 23, socket 24, stop 25, through hole 26, threaded column 27.

Detailed Description

The technical contents of the utility model are described in detail below with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in fig. 1 to 3b, embodiment 1 of the present invention discloses an otological cartilage shaping scissors, which comprises a scissors handle 1 and a blade 2.

The scissor handle 1 comprises an upper scissor body 11 and a lower scissor body 12, the upper scissor body 11 is connected with the lower scissor body 12 through a rotating shaft 13, and the upper scissor body 11 and the lower scissor body 12 can rotate around the rotating shaft 13 to realize the opening and closing of the upper scissor body 11 and the lower scissor body 12. The upper scissors body 11 comprises an upper head part 111 connected with the blade and an upper holding part 112; the lower scissor body 12 includes a lower head 121 and a lower grip 122 to which the blade is attached.

The blade 2 comprises an upper blade 21 and a lower blade 22 which are snapped together to shape and shear the cartilage. The upper head 111 is connected to the upper blade 21 and the lower head 121 is connected to the lower blade 22.

The shape of the upper blade 21 and the lower blade 22 matches the shape of the desired cartilage, in this embodiment a perfect circle, but may of course be designed in other desired shapes, such as an oval or the like.

In the present embodiment, the upper blade 21 and the lower blade 22 are designed as non-circular arc-shaped cutting edges, but they can be matched into a circular cutting edge after being engaged. In the present embodiment, the upper blade 21 and the lower blade 22 are each provided with a semi-circular arc-shaped edge. The design does not influence the molding cutting of the cartilage, the cartilage is taken out after the cutting is convenient, the cartilage can be taken out by the blade without a blade part, and the cartilage clamping and embedding phenomenon can not occur.

In the present embodiment, the upper head portion 111 of the upper scissors body 11 and the lower head portion 121 of the lower scissors body 12 are disposed at an angle with the upper grip portion 112 and the lower grip portion 122, the specific angle range can be 120 degrees and 150 degrees, the angle design is mainly used for cutting cartilage, and in the present embodiment, the angle is 135 degrees.

In this embodiment, in order to facilitate the quick connection and disconnection of the blade to the scissor handle, the back of each of the upper blade 21 and the lower blade 22 is provided with an elastic column 23, the upper head 111 and the lower head 121 are provided with a socket 24 matched with the upper head and the lower head, and the elastic columns 23 can be compressed and slid into the sockets 24 and then spring open and fixed.

In order to block the rotation of the blade in the operation, a stopping part 25 for stopping the rotation of the elastic column 23 is arranged on the insertion opening 24, and the stopping part 25 can be inserted into the vacant part of the elastic column 23 to realize the stopping function.

Other detachable structures known to those skilled in the art may also be utilized with the present invention.

Example 2

In this embodiment, as shown in fig. 4 to 6b, the upper blade 21 and the lower blade 22 are provided with ring blades, which are engaged to cut off cartilage embedded in the ring blades.

The other structures in this embodiment are the same as those in embodiment 1.

Example 3

As shown in fig. 7a and 7b, in the present embodiment, the upper blade 21 and the lower blade 22 are provided with the through holes 26, the through holes 26 are used for taking out the cut cartilage, and the blunt tool can be inserted into the through holes 26 to eject the cartilage without damaging the cut cartilage.

In addition, in the present embodiment, the back of the upper blade 21 and the back of the lower blade 22 are provided with threaded columns 27, and the upper head 111 and the lower head 121 are provided with threaded sockets matched with the threaded columns. The design can facilitate the installation and the disassembly of the blade, and the stability is strong.

The present invention has been described in detail. It will be apparent to those skilled in the art that any obvious modifications thereof can be made without departing from the spirit of the utility model, which infringes the patent right of the utility model and bears the corresponding legal responsibility.

Claims

1. The auricular cartilage shaping scissors are characterized by comprising scissors handles and blades; the scissors handle comprises an upper scissors fork body and a lower scissors fork body, the upper scissors fork body and the lower scissors fork body are connected through a rotating shaft, and the upper scissors fork body and the lower scissors fork body both comprise a head part and a holding part which are connected with the blade; the blades comprise an upper blade and a lower blade which are meshed together to shape and shear cartilage, the head of the upper scissors fork body is connected with the upper blade, and the head of the lower scissors fork body is connected with the lower blade; the shape of the upper blade and the lower blade is matched with the shape of the required cartilage; at least one of the upper blade and the lower blade is provided with an arc-shaped cutting edge.

2. The otological cartilage shaping scissors of claim 1 wherein the upper and lower scissors body are angled between the head and the grip.

3. The otological cartilage shaping scissors of claim 2 wherein the angle is 120-150 degrees.

4. The otological cartilage shaping scissors of claim 1 wherein the upper blade and the lower blade are circular or oval.

5. The otological cartilage shaping scissors according to claim 4, wherein the upper blade is provided with a non-circular arc-shaped or non-circular elliptical arc-shaped cutting edge, and the lower blade is provided with an arc-shaped cutting edge which can be matched with the upper blade to form a full circle or a full ellipse.

6. The otological cartilage shaping scissors of claim 1 wherein the upper blade and the lower blade are each provided with a ring blade.

7. The otological cartilage shaping scissors of claim 1 wherein the upper blade and the lower blade are provided with elastic columns at the back and the upper fork body and the lower fork body are provided with sockets at the head for matching with the upper fork body and the lower fork body.

8. The otological cartilage shaping scissors of claim 7, wherein the insertion opening is provided with a stopping portion for stopping the rotation of the elastic column.

9. The otological cartilage shaping scissors of claim 1 wherein the upper blade and the lower blade are provided with threaded posts at the back and the upper fork body and the lower fork body are provided with threaded sockets at the head for mating therewith.

10. The otological cartilage shaping scissors of any one of claims 1 to 8 wherein the upper blade and the lower blade are provided with through holes.