CN213217559U

CN213217559U - Orthopedics arthroscopy operation auxiliary instrument

Info

Publication number: CN213217559U
Application number: CN202020584513.2U
Authority: CN
Inventors: 赵东旭; 王铁英
Original assignee: Second Hospital Of Chifeng
Current assignee: Second Hospital Of Chifeng
Priority date: 2020-04-12
Filing date: 2020-04-12
Publication date: 2021-05-18
Anticipated expiration: 2030-04-12

Abstract

An orthopedic arthroscopic surgery auxiliary instrument is composed of an expansion head (2) connected with a handle (5), wherein the periphery of the expansion head is provided with a surrounding edge (6) which has a given height, a middle hole (3) is formed in the middle of a plane (7) of the expansion head, a lens hole (4) is formed in the surrounding edge of the near end of the expansion head, a semicircular notch (1) is formed in the far end of the expansion head, and the surrounding edge of the far end of the expansion head is in a smooth arc shape. The instrument expansion head is used for assisting the arthroscope to establish the working space under the arthroscope when a four-limb intraosseous fixture is taken out for operation, is not influenced by muscle extrusion and tissue shielding, is not limited by limb swelling, and has sufficient working space under the arthroscope and clear visual field. The device has simple structure, is integrally formed by stainless steel, is firm and durable, and can be repeatedly sterilized and used. The semicircular notch and the middle hole in the front part of the surgical instrument are designed to facilitate the operations of placing a planer tool, a plasma tool bit and a screwdriver in the operation for cutting, exposing, stopping bleeding, screwing out screws and the like, so that the operation is easier to implement.

Description

Orthopedics arthroscopy operation auxiliary instrument

Technical Field

The utility model relates to a medical appliance, in particular to an appliance which can establish a working space under an arthroscope and make the visual field of orthopedic surgery clear when an arthroscope is used for taking out a fixed object in a limb bone.

Background

The bone fracture plate and the screws are common internal fixation objects for the fracture of the four limbs, most of the fractures of the four limbs need to be operated again to take out the internal fixation objects after healing, and the traditional operation for cutting and taking out the internal fixation objects has long incision, large wound and slow postoperative recovery. At present, the arthroscopic-assisted minimally invasive internal fixation extraction operation is gradually replaced by the arthroscopic-assisted minimally invasive internal fixation extraction operation with small incision, small wound and fast recovery, and when the arthroscopic-assisted four-limb internal fixation extraction operation is carried out, firstly, an artificial working lacuna space needs to be established on a muscle-bone plate interface, and then, the operations of under-lens observation, screw extraction and the like can be carried out.

The method for establishing the working space under the mirror at present is realized by the distraction effect of the static pressure of the perfusion fluid after the periosteum elevator is used for separating a muscle-bone fracture plate interface, the working space under the mirror established by the method is narrow, the visual field under the mirror is limited due to the extrusion of surrounding muscles and the tissue shielding, the further observation and operation under the mirror are influenced, the effective distraction can not be realized by improving the static pressure of the perfusion fluid, and the edema of the tissue gap is increased to extrude the working space under the mirror to further reduce the working space, so the working space under the mirror established by the method is not ideal.

Disclosure of Invention

An object of the utility model is to provide an orthopedics arthroscopic surgery auxiliary instrument, the expansion head that it was equipped with has the take-up head and encloses into certain space, can strut certain space in the operation to establish the hole that makes things convenient for the arthroscopic camera lens to get into, still be equipped with the hole that can insert the screwdriver and screw out the screw, can make the work field of vision under the arthroscope clear open, the operation of taking out of interior fixture is easier, and efficiency is higher.

The technical scheme of the utility model as follows:

an auxiliary instrument for arthroscopic surgery in orthopedics department is composed of an expansion head and a handle, wherein the expansion head is a plane, the periphery of the plane is connected with a surrounding edge, the junction of the surrounding edge and the plane is smooth, the surrounding edge has a given height and is convenient to open a certain space, a middle hole is formed in the middle position of the plane of the expansion head, a mirror hole is formed in the surrounding edge at the near end of the expansion head, a semicircular notch is formed in the far end of the expansion head, and the surrounding edge at the far end of the expansion head is in a smooth arc shape.

The height of the surrounding edge is 2-4mm larger than the diameter of the arthroscope lens.

The device is made of stainless steel.

The utility model has the advantages that: 1. the front part of the expansion head of the instrument is smooth arc, muscle tissues cannot be damaged when the instrument is used, the instrument is used for assisting an arthroscope to establish an under-lens working space when a four-limb intraosseous fixture is taken out for an operation, the under-lens working space established on a muscle-bone fracture plate interface cannot be influenced by muscle extrusion and tissue shielding and is not limited by limb swelling, the under-lens working space is sufficient, and the visual field is clear. 2. Is economical and applicable. The device has the advantages of simple structure, integrated molding, simple manufacturing process and low cost. The stainless steel is firm and durable, and can be repeatedly sterilized and used. 3. The semicircular notch and the middle hole in the front part of the device are designed to facilitate the operations of placing a planer tool, a plasma tool bit and a screwdriver in the operation for cutting, exposing, stanching, screwing out a screw and the like, so that the operation is easier to implement. 4. The middle hole of the device has the function of limiting the screw to fall off from the tissue gap in the screw unscrewing process, so that the screw taking-out operation is more convenient and safer. 5. The device has wide application range, and the auxiliary arthroscope can be used for taking out the internal fixation objects of multiple parts of the four limbs.

Drawings

Fig. 1 is a top view of an embodiment of the present invention;

fig. 2 is a front view of an embodiment of the present invention;

fig. 3 is a view from a-a of fig. 1.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As can be seen from figures 1-3, the orthopedic arthroscopic surgery auxiliary instrument is composed of an expansion head 2 and a handle 5, wherein the expansion head is provided with a plane 7, the periphery of the plane is connected with a surrounding edge 6, the junction of the surrounding edge 6 and the plane is smooth, the height of the surrounding edge is 8mm, the expansion head is the main part for establishing a working space under a mirror, a middle hole 3 with the diameter of 8.3mm is arranged at the middle position of the plane of the expansion head, a mirror hole 4 is arranged on the surrounding edge of the near end of the expansion head 2, the diameter of the mirror hole is 7mm, a semicircular notch 1 with the diameter of 6mm is arranged at the far end of the expansion head, and the surrounding edge of the far end of the expansion head is smooth arc.

According to different operation positions, the instrument set has 5 instruments in total, the length of a handle 5, the shape of an expansion head, the diameters of a middle hole, a lens hole and a semicircular notch on the expansion head are unchanged, and the sizes of the expansion head are respectively (length x width x height) from large to small, except that the sizes of the expansion head are different: 38x20x10mm, 35x18x9mm, 30x14x8mm, 25x12x8mm, 20x10x8 mm. The device is made of stainless steel.

When the four-limb endosteal fixture is taken out for operation, a minimally invasive incision is made according to the limb part and the length of the endosteal fixture, a periosteum elevator is inserted into the incision to separate a muscle-bone fracture plate interface after the incision is performed layer by layer, then the device is inserted into the incision to establish a working space under a mirror, and an arthroscopic lens is inserted into a near-end mirror hole 4 to perform under-mirror observation; inserting a plasma cutter head into the semicircular gap 1 at the far end of the expansion head 2 to perform operations such as cutting, stripping and exposing, hemostasis and the like; under the monitoring of an arthroscope, a screwdriver is inserted into the central hole 3 to screw out the internal fixing screw, and the bone fracture plate is taken out after all the screws are screwed out.

Claims

1. An orthopedic arthroscopic surgery auxiliary instrument, which is characterized in that: the novel endoscope is formed by connecting an expansion head (2) with a handle (5), wherein the expansion head is provided with a plane (7), the periphery of the plane is connected with a surrounding edge (6), the junction of the surrounding edge and the plane is smooth, the surrounding edge has a given height, a middle hole (3) is arranged in the middle of the plane of the expansion head, a lens hole (4) is arranged on the surrounding edge at the near end of the expansion head, a semicircular notch (1) is arranged at the far end of the expansion head, and the surrounding edge at the far end of the expansion head is in a smooth arc shape.

2. The orthopedic arthroscopic surgical aid of claim 1, wherein: the height of the surrounding edge is 2-4mm larger than the diameter of the arthroscope lens.

3. The orthopedic arthroscopic surgical aid of claim 1, wherein: the auxiliary instrument for orthopedic arthroscopic surgery is made of stainless steel.