CN221903865U - Surgical knife for cutting costal cartilage - Google Patents

Abstract

The utility model discloses a surgical knife for cutting costal cartilage, which comprises a knife handle, a connecting rod and a knife head, wherein the connecting rod is fixedly connected with the knife handle, the knife head is fixed at the tail end of the connecting rod, the knife head comprises an integrally formed amplifying positioning head and a U-shaped blade, the U-shaped blade is fixed at the bottom of the amplifying positioning head, a duct is arranged between the U-shaped blade and the amplifying positioning head, the connecting rod and the knife handle are arranged at a certain included angle, and the bottom surface of the U-shaped blade is arranged in parallel with the knife handle. This a scalpel for costal cartilage is cut and is got simple structure, convenient operation adopts the mode of planing to gather costal cartilage surface costal cartilage piece, can guarantee the continuity of skeleton to can not produce the tissue material extravagant, when utilizing this scalpel to plane and get the costal cartilage, but whole direct-view cuts the face of getting, operation factor of safety is higher, utilizes this scalpel to carry out the time of operation weak point, and the operation incision is little, and is little to the damage that the human body caused.

Description

A surgical knife for cutting rib cartilage

Technical Field

The utility model relates to the technical field of plastic surgery and is a scalpel used for cutting costal cartilage.

Background Art

In cosmetic surgery, costal cartilage slices are used as supporting materials for rhinoplasty. The prior art is to cut a section of costal cartilage and then cut it into slices for use. The specific implementation method is: after cutting the skin, superficial fascia and muscle to the surface of the costal perichondrium, the upper and lower edges of the costal cartilage surface and the deep costal perichondrium should be separated, and then a section of costal cartilage should be cut, and then the removed costal cartilage should be sliced. However, the above surgical method has the following disadvantages: 1. Cutting a section of costal cartilage destroys the continuity of the thoracic skeleton structure, and the two free costal cartilage ends will also affect the postoperative movement; 2. Taking a section of costal cartilage under a small incision is complicated, the surgical level is deep, and the costal perichondrium on the deep side of the costal cartilage must be peeled off blindly, which is risky and unsafe; 3. Waste of tissue materials. Only 2-4 costal cartilage slices are needed for the costal cartilage slice support in rhinoplasty, and only a part of the costal cartilage is used after the costal cartilage is sliced, and most of it is discarded and wasted; 4. The operation time is long and the damage is large.

Utility Model Content

In view of the above technical problems, the utility model proposes a scalpel for costal cartilage extraction. The scalpel has a simple structure, is easy to operate, and adopts a planing method to collect costal cartilage slices on the surface of the costal cartilage. It has the advantages of short operation time, small surgical incision, and little damage to the human body.

A surgical knife for cutting rib cartilage comprises a handle, a connecting rod and a blade, wherein the connecting rod is fixedly connected to the handle, the blade is fixed to the end of the connecting rod, the blade comprises an integrally formed enlarged positioning head and a U-shaped blade, the U-shaped blade is fixed to the bottom of the enlarged positioning head, a channel is provided between the U-shaped blade and the enlarged positioning head, the connecting rod is arranged at a certain angle to the handle, and the bottom surface of the U-shaped blade is arranged parallel to the handle.

As a preferred embodiment of the above technical solution, the connecting rod is a multi-section structure, S-shaped, including a horizontal section, a curved section and a vertical connecting head, the curved section includes a first curved section and a second curved section connected in sequence, the horizontal section is used to coaxially dock with the handle, the first curved section and the bottom surface of the U-shaped blade have an angle of 60°, and the second curved section and the bottom surface of the U-shaped blade have an angle of 45°.

As a preferred embodiment of the above technical solution, the enlarged positioning head and the connecting rod are integrally formed, the U-shaped blade is fixed to the bottom of the enlarged positioning head, the bottom surface of the enlarged positioning head is a smooth arc surface, the blade side of the U-shaped blade is the inlet, and the outlet cross-sectional area of the channel is larger than the inlet cross-sectional area.

As a preferred embodiment of the above technical solution, the knife handle, connecting rod and knife head are all made of medical stainless steel.

As a preferred embodiment of the above technical solution, the knife handle is a hollow structure and is provided with anti-slip patterns.

The beneficial effects of the utility model are:

1. The structure is simple and the operation is convenient. The costal cartilage slices on the costal cartilage surface are collected by planing, which can ensure the continuity of the skeleton and will not waste tissue materials.

2. When using this scalpel to remove costal cartilage, the cutting surface can be directly viewed throughout the entire process, which increases the safety factor of the operation.

3. The operation time of the scalpel is short, the surgical incision is small, and the damage to the human body is small.

4. The S-type connecting rod can obtain larger operating space in each step of the operation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of the utility model.

FIG. 2 is a schematic diagram of the structure of the connecting rod.

FIG. 3 is a front view of the cutter head.

The reference numerals are as follows: 1-handle, 2-connecting rod, 201-horizontal section, 202-bent section, 202a-first bent section, 202b-second bent section, 203-vertical connecting head, 3-knife head, 301-enlarged positioning head, 302-U-shaped blade, 4-channel.

DETAILED DESCRIPTION

The following is a clear and complete description of the technical solution of the utility model in conjunction with the accompanying drawings of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

A scalpel for costal cartilage removal as shown in Figures 1 to 3 includes a handle 1, a connecting rod 2 and a blade 3, wherein the connecting rod 2 is fixedly connected to the handle 1, and the blade 3 is fixed to the end of the connecting rod 2. The blade 3 includes an integrally formed enlarged positioning head 301 and a U-shaped blade 302, wherein the U-shaped blade 302 is fixed to the bottom of the enlarged positioning head 301, and a channel 4 is provided between the U-shaped blade 302 and the enlarged positioning head 301, the connecting rod 2 is arranged at a certain angle to the handle 1, and the bottom surface of the U-shaped blade 302 is arranged parallel to the handle 1.

In this embodiment, as a preferred embodiment of the above technical solution, the connecting rod 2 is a multi-section structure, S-shaped, including a horizontal section 201, a curved section 202 and a vertical connecting head 203, the curved section 202 includes a first curved section 202a and a second curved section 202b connected in sequence, the horizontal section 201 is used to coaxially dock with the handle 1, the first curved section 202a and the bottom surface of the U-shaped blade 302 have an angle of 60°, and the second curved section 202b and the bottom surface of the U-shaped blade 302 have an angle of 45°.

In this embodiment, the enlarged positioning head 301 is integrally formed with the connecting rod 2, the U-shaped blade 302 is fixed to the bottom of the enlarged positioning head 301, the bottom surface of the enlarged positioning head 301 is a smooth arc surface, the blade side of the U-shaped blade 302 is the inlet, and the outlet cross-sectional area of the channel 4 is larger than the inlet cross-sectional area.

In this embodiment, the knife handle 1, the connecting rod 2 and the knife head 3 are all made of 304 stainless steel.

In this embodiment, the knife handle 1 is a hollow structure, and anti-slip patterns are provided on the knife handle 1.

The procedure for cutting costal cartilage using the scalpel is as follows:

Operation 1: Enter through a small incision until you reach the surface of the costal cartilage membrane, insert the blade 3 into the incision, and cut into the costal cartilage obliquely. The bottom surface of the blade 3 will limit the cutting depth, that is, the thickness of the costal cartilage slice needs to be planed;

Operation 2: Adjust the direction of the U-shaped blade 302 to be parallel to the surface of the costal cartilage;

Operation three: follow the direction of the costal cartilage, keep it centered, pull the blade 3 backward, and the costal cartilage that has been planed will pass through the hole 4;

Operation 4: Plane the costal cartilage piece of required length, cut the costal cartilage piece and take it out.

The scalpel used for costal cartilage cutting has a simple structure and is easy to operate. The costal cartilage slices on the surface of the costal cartilage are collected by planing, which can ensure the continuity of the skeleton and will not waste tissue materials. When the costal cartilage is planed by the scalpel, the cutting surface can be directly viewed throughout the whole process, and the operation safety factor is higher. The operation time using the scalpel is short, the surgical incision is small, and the damage to the human body is small.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (5)

1. A surgical knife for cutting rib cartilage, characterized in that it comprises a handle, a connecting rod and a blade, wherein the connecting rod is fixedly connected to the handle, the blade is fixed to the end of the connecting rod, the blade comprises an integrally formed enlarged positioning head and a U-shaped blade, the U-shaped blade is fixed to the bottom of the enlarged positioning head, a channel is provided between the U-shaped blade and the enlarged positioning head, the connecting rod is arranged at a certain angle to the handle, and the bottom surface of the U-shaped blade is arranged parallel to the handle. 2. The scalpel according to claim 1 is characterized in that: the connecting rod is a multi-section structure, S-shaped, including a horizontal section, a curved section and a vertical connector, the curved section includes a first curved section and a second curved section connected in sequence, the horizontal section is used to coaxially connect with the handle, the first curved section and the bottom surface of the U-shaped blade have an angle of 60°, and the second curved section and the bottom surface of the U-shaped blade have an angle of 45°. 3. The scalpel according to claim 1 is characterized in that: the enlarged positioning head and the connecting rod are integrally formed, the U-shaped blade is fixed to the bottom of the enlarged positioning head, the bottom surface of the enlarged positioning head is a smooth arc surface, the blade side of the U-shaped blade is the inlet, and the outlet cross-sectional area of the channel is larger than the inlet cross-sectional area. 4. The surgical knife according to claim 1, wherein the handle, connecting rod and blade head are all made of medical stainless steel. 5. The surgical knife according to claim 1, wherein the handle is a hollow structure and is provided with anti-slip patterns.