CN214342523U

CN214342523U - Steel needle auxiliary positioning device for percutaneous steel needle internal fixation under X-ray fluoroscopy

Info

Publication number: CN214342523U
Application number: CN202022956468.1U
Authority: CN
Inventors: 霍仁斌; 张美良; 王吉林; 王勇; 李军孝; 曹晓赟; 刘增飞
Original assignee: Jiaxian People's Hospital; TRADITIONAL CHINESE MEDICINE HOSPITAL GUANGLING DISTRICT YANGZHOU CITY
Current assignee: Jiaxian People's Hospital; TRADITIONAL CHINESE MEDICINE HOSPITAL GUANGLING DISTRICT YANGZHOU CITY
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-10-08
Anticipated expiration: 2030-12-11

Abstract

The utility model relates to a steel needle auxiliary positioning device for percutaneous steel needle internal fixation under X-ray fluoroscopy, which comprises a first steel needle, a second steel needle, a universal rod nail clamp and a T-shaped carbon fiber rod; the T-shaped carbon fiber rod comprises a hollow carbon fiber round rod and a solid carbon fiber round rod, one end of the solid carbon fiber round rod is vertically fixed on the side wall of the hollow carbon fiber round rod, and the other end of the solid carbon fiber round rod is connected with a second steel needle through a universal rod nail clamp; an upper through round hole and a lower through round hole are sequentially arranged in the hollow carbon fiber round rod from top to bottom; a first carbon fiber cylinder, a spring and a second carbon fiber cylinder are sequentially arranged in the upper through round hole of the hollow carbon fiber round rod from top to bottom, and the spring is arranged between the first carbon fiber cylinder and the second carbon fiber cylinder; the top of the hollow carbon fiber round rod is screwed with a carbon fiber cap. Through the utility model discloses, avoid doctor and reduce the patient and receive X ray perspective risk, increase doctor and patient's both sides' security, guarantee the success rate of ossicle fracture piece back steel needle location internal fixation that resets.

Description

Steel needle auxiliary positioning device for percutaneous steel needle internal fixation under X-ray fluoroscopy

Technical Field

The utility model relates to a steel needle auxiliary positioning device for percutaneous steel needle internal fixation under X-ray fluoroscopy, which belongs to the field of orthopedic medical instruments.

Background

Small pieces of fracture and displacement of joint parts, particularly joints of hands and feet are sometimes not suitable for steel plate/screw internal fixation, percutaneous steel needle internal fixation is adopted under closed reduction X-ray fluoroscopy, and the steel needle is generally pulled out 4-6 weeks after the internal fixation. When the percutaneous steel needle is internally fixed under closed reduction X-ray fluoroscopy, the steel needle is not easy to be accurately positioned at one time due to small fracture blocks, and the X-ray fluoroscopy drilling needs to be carried out for multiple times until the small bone blocks are reset and fixed on the large bone blocks. Multiple drilling increases the damage of the small bone block and even the fracture leads to the failure of internal fixation, and multiple X-ray fluoroscopy increases the radioactive damage of the operator and the patient. The hollow tine fracture repositor and the CN 2604156Y nailing type clamp fixer of Chinese patent CN 205019142U both adopt clamp symmetrical clamps, and the clamp tooth part is provided with a sleeve for positioning a drilling steel needle. These designs and manufactures all adopt metal, and under the less condition of fracture piece, the complicated metal structure of equipment often can shelter from less fracture piece X line perspective, influences the steel needle location fixed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steel needle auxiliary positioning device of percutaneous steel needle internal fixation usefulness under the X-ray perspective to the not enough of current problem.

The technical scheme of the utility model is that: a steel needle auxiliary positioning device for percutaneous steel needle internal fixation under X-ray fluoroscopy is characterized in that: comprises a first steel needle, a second steel needle, a universal rod nail clamp and a T-shaped carbon fiber rod;

the T-shaped carbon fiber rod comprises a hollow carbon fiber round rod and a solid carbon fiber round rod, one end of the solid carbon fiber round rod is vertically fixed on the side wall of the hollow carbon fiber round rod, and the other end of the solid carbon fiber round rod is connected with a second steel needle through a universal rod nail clamp; an upper through round hole and a lower through round hole are sequentially arranged in the hollow carbon fiber round rod from top to bottom, the upper through round hole and the lower through round hole are mutually communicated, and the aperture of the upper through round hole is larger than that of the lower through round hole;

a first carbon fiber cylinder, a spring and a second carbon fiber cylinder are sequentially arranged in the upper through round hole of the hollow carbon fiber round rod from top to bottom, and the spring is arranged between the first carbon fiber cylinder and the second carbon fiber cylinder; the top of the hollow carbon fiber round rod is screwed with a cap;

and the first steel needle extends into the lower part of the first hollow carbon fiber round rod from the bottom of the first hollow carbon fiber round rod and is in cylindrical contact with the second carbon fiber.

The hollow carbon fiber round rod and the solid carbon fiber round rod are of an integrated structure.

The top of hollow carbon fiber round bar is equipped with the external screw thread, is equipped with in the block with external screw thread assorted internal thread, the carbon fiber block revolves in the top of hollow carbon fiber round bar.

The cap is made of carbon fiber.

The utility model discloses rational in infrastructure, convenient to use before the use, put into first carbon fiber cylinder, spring, second carbon fiber cylinder in proper order in running through the round hole on the diameter at hollow carbon fiber round bar center is big, the external screw thread on hollow carbon fiber round bar top is screwed up with having internal screw thread block (the block material is the carbon fiber), prevents to run through the round hole on first carbon fiber cylinder, spring, the roll-off of second carbon fiber cylinder.

When in use, the operator resets the fracture by a manual method, supports the second steel needle to the fracture part through the skin, sleeves the lower through hole corresponding to the hollow carbon fiber round rod of the T-shaped carbon fiber rod into the first steel needle, and supports the first steel needle to the second carbon fiber round rod to compress the spring to a certain extent.

The normal non-fractured bone part of the bone where the fracture block is located is selected to drill the second steel needle at a corresponding angle and is fixed firmly, the position of the hollow carbon fiber round rod is adjusted to ensure that the first steel needle is kept to abut against the outer side of the fracture by the elastic pressure of the spring so as not to enable the first steel needle to retreat and shift, and the position of the solid carbon fiber round rod is further adjusted to be fixedly connected with the second steel needle through a universal rod nail clamp.

The reduction condition of the fracture part and the alignment condition of the tip of the first steel needle and the small fracture block are selected to be seen through at different angles, the position of the first steel needle is adjusted under the condition that the first steel needle does not penetrate into the small fracture block until the reduction of the fracture part is good and the alignment of the tip of the first steel needle and the small fracture block is accurate, and the first steel needle penetrates into the small fracture block and enters the corresponding fracture part to a sufficient depth through a fracture line. If the size of the fracture block is enough, a second first steel needle can be drilled in the same way. And (3) removing auxiliary devices such as a second steel needle and the like after the first steel needle at the fracture part is satisfactorily fixed, and only retaining the first steel needle to fix the fracture block.

The spring that runs through in the round hole on hollow carbon fiber round bar leaves fracture position far relatively to the spring does not have one slice and shelters from the effect, do not have basically to shelter from to first steel needle point portion perspective, avoid many times the blind method to wear the needle and lead to the risk of the broken operation failure of ossicle easily, also avoid prior art equipment to the problem of sheltering from of fracture position perspective, further avoid the art person and reduce the risk that patient X ray exposes, obviously increase doctors and patients ' both sides ' security, guarantee ossicle fracture piece and reset back steel needle location internal fixation's success rate.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

in the figure: 1 first steel needle, 2 second steel needles, 3 universal rod nail clamps, 4-1 hollow carbon fiber round rod, 4-2 solid carbon fiber round rod, 5-1 first carbon fiber cylinder, 5-2 second carbon fiber cylinder, 6 springs and 7 caps.

Detailed Description

Embodiments of the present invention will be described in further detail with reference to the accompanying drawings.

A steel needle auxiliary positioning device for percutaneous steel needle internal fixation under X-ray fluoroscopy comprises a first steel needle 1, a second steel needle 2, a universal rod nail clamp 3 and a T-shaped carbon fiber rod; the T-shaped carbon fiber rod comprises a hollow carbon fiber round rod 4-1 and a solid carbon fiber round rod 4-2, one end of the solid carbon fiber round rod 4-2 is vertically fixed on the side wall of the hollow carbon fiber round rod 4-1, and the other end of the solid carbon fiber round rod is connected with a second steel needle 2 through a universal rod nail clamp 3; an upper through round hole and a lower through round hole are sequentially arranged in the hollow carbon fiber round rod 4-1 from top to bottom, the upper through round hole and the lower through round hole are communicated with each other, and the aperture of the upper through round hole is larger than that of the lower through round hole.

A first carbon fiber cylinder 5-1, a spring 6 and a second carbon fiber cylinder 5-2 are sequentially arranged in a through round hole in the hollow carbon fiber round rod 4-1 from top to bottom, and the spring 6 is arranged between the first carbon fiber cylinder 5-1 and the second carbon fiber cylinder 5-2; the top of the hollow carbon fiber round rod 4-1 is provided with an external thread, the cap 7 is internally provided with an internal thread matched with the external thread, and the cap 7 is screwed on the top of the hollow carbon fiber round rod 4-1. The first steel needle 1 extends into the lower penetrating round hole of the first hollow carbon fiber round rod 4-1 from the bottom of the first hollow carbon fiber round rod 4-1 and is in contact with the second carbon fiber cylinder 5-2. The hollow carbon fiber round rod 4-1 and the solid carbon fiber round rod 4-2 are of an integrated structure. The cap 7 is made of carbon fiber.

Claims

1. A steel needle auxiliary positioning device for percutaneous steel needle internal fixation under X-ray fluoroscopy is characterized in that: comprises a first steel needle (1), a second steel needle (2), a universal rod nail clamp (3) and a T-shaped carbon fiber rod;

the T-shaped carbon fiber rod comprises a hollow carbon fiber round rod (4-1) and a solid carbon fiber round rod (4-2), one end of the solid carbon fiber round rod (4-2) is vertically fixed on the side wall of the hollow carbon fiber round rod (4-1), and the other end of the solid carbon fiber round rod is connected with a second steel needle (2) through a universal rod nail clamp (3); an upper through round hole and a lower through round hole are sequentially arranged in the hollow carbon fiber round rod (4-1) from top to bottom, the upper through round hole and the lower through round hole are mutually communicated, and the aperture of the upper through round hole is larger than that of the lower through round hole;

a first carbon fiber cylinder (5-1), a spring (6) and a second carbon fiber cylinder (5-2) are sequentially arranged in the upper through round hole of the hollow carbon fiber round rod (4-1) from top to bottom, and the spring (6) is arranged between the first carbon fiber cylinder (5-1) and the second carbon fiber cylinder (5-2); a cap (7) is screwed on the top of the hollow carbon fiber round rod (4-1);

the first steel needle (1) extends into the lower through round hole of the hollow carbon fiber round rod (4-1) from the bottom of the hollow carbon fiber round rod (4-1) and is in contact with the second carbon fiber cylinder (5-2).

2. The steel needle auxiliary positioning device for percutaneous steel needle internal fixation under X-ray fluoroscopy as claimed in claim 1, wherein: the hollow carbon fiber round rod (4-1) and the solid carbon fiber round rod (4-2) are of an integrated structure.

3. The steel needle auxiliary positioning device for percutaneous steel needle internal fixation under X-ray fluoroscopy as claimed in claim 1, wherein: the top of the hollow carbon fiber round rod (4-1) is provided with an external thread, an internal thread matched with the external thread is arranged in the cap (7), and the cap (7) is screwed on the top of the hollow carbon fiber round rod (4-1).

4. The steel needle auxiliary positioning device for percutaneous steel needle internal fixation under X-ray fluoroscopy as claimed in claim 1, wherein: the cap (7) is made of carbon fiber.