CN209884257U

CN209884257U - Minimally invasive surgical drill for orthopedic spine

Info

Publication number: CN209884257U
Application number: CN201822225406.6U
Authority: CN
Inventors: 王小英; 付治安; 贺靖澜
Original assignee: Affiliated Hospital Of Hebei University Of Engineering
Current assignee: Affiliated Hospital Of Hebei University Of Engineering
Priority date: 2018-12-28
Filing date: 2018-12-28
Publication date: 2020-01-03
Anticipated expiration: 2028-12-28

Abstract

The utility model discloses an orthopedics backbone wicresoft operation bores, including working pipeline, trephine and handle, the trephine sets up in working pipeline, trephine one end is the bistrique, and the trephine other end and handle fixed connection, be equipped with the external screw thread on the trephine, first annular piece has been cup jointed to the screw thread on the external screw thread, one side that first annular piece is close to working pipeline is equipped with second annular piece, and second annular piece slip cap is established on the trephine, second annular piece passes through elasticity stop gear and first annular piece fixed connection, the handle include with trephine fixedly connected with spheroid, bilateral symmetry is equipped with two dead levers about the spheroid, the dead lever passes through stop gear and spheroid fixed connection. The utility model discloses it is rational in infrastructure, can avoid boring into fast because the trephine that leads to because of the sense of falling to the sky when grinding off the sclerotin and get into the canalis spinalis, have the guard action, be convenient for operate simultaneously.

Description

Minimally invasive surgical drill for orthopedic spine

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an orthopedics backbone wicresoft operation bores.

Background

An orthopedic spine minimally invasive surgery drill is a part of a set of instruments applied to orthopedic spine minimally invasive surgery, and comprises three parts: working pipe, trephine and handle. The working channel is a passage that connects the vertebrae to the outside, and the trephine is passed through the working channel to the vertebral trephine, which functions to abrade away a portion of the vertebral bone that is obstructed for surgery. In the operation process, the bone is abraded through the soft vertebral canal, the trephine has a falling empty feeling when the bone is abraded and the vertebral canal is entered, but the operation at the moment must be careful, and if the trephine is slightly careless at the moment of entering, the trephine can enter the vertebral canal to damage the nerve root too much.

Through retrieval, Chinese patent No. CN206403829U discloses a surgical drill, which comprises a working pipeline, a trephine and a handle, wherein the front end of the trephine is a grinding head, the rear end of the trephine is connected with the handle, the rear end of the trephine is also provided with a spiral ring, the trephine is provided with an external thread, and the spiral ring is connected with the trephine through an internal thread.

The existing surgical drill has the following defects: although the spiral ring is arranged, the screwing depth of the trephine is limited, the trephine still penetrates deeply suddenly due to the falling empty feeling when the sclerotin is ground off and enters the vertebral canal, and adverse effects are easy to generate; meanwhile, the operation of a single handle is not convenient enough.

To this end, we propose an orthopedic spinal minimally invasive surgical drill to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an orthopedic spine minimally invasive surgery drill.

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

the utility model provides an orthopedics backbone wicresoft operation bores, includes working pipeline, trephine and handle, the trephine sets up in the working pipeline, trephine one end is the bistrique, and the trephine other end and handle fixed connection, be equipped with the external screw thread on the trephine, first annular piece has been cup jointed to the screw thread on the external screw thread, one side that first annular piece is close to the working pipeline is equipped with second annular piece, and second annular piece slip cover is established on the trephine, second annular piece passes through elasticity stop gear and first annular piece fixed connection, the handle include with trephine fixedly connected with spheroid, bilateral symmetry is equipped with two dead levers about the spheroid, the dead lever passes through stop gear and spheroid fixed connection.

Preferably, elasticity stop gear sets up the telescopic link in the trephine both sides including the symmetry, telescopic link one end and first annular piece fixed connection, and the telescopic link other end and second annular piece fixed connection, the cover is equipped with the spring on the telescopic link, spring one end and first annular piece fixed connection, and the spring other end and second annular piece fixed connection.

Preferably, the limiting mechanism comprises a threaded rod coaxially and fixedly connected with the fixing rod, and a threaded hole groove matched with the threaded rod is formed in the ball body.

Preferably, the upper external thread position of the trephine is provided with a strip-shaped groove, and the bottom wall of the strip-shaped groove is provided with scale marks.

Preferably, the fixing rod is fixedly sleeved with a rubber sleeve.

Preferably, a plurality of anti-slip grooves are uniformly distributed on the surface of the ball body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through setting up the second annular piece, the second annular piece passes through elasticity stop gear and first annular piece fixed connection simultaneously, when the trephine is grinding off the sclerotin and gets into the canalis spinalis, because the sense trephine of falling into the sky can be deepened in the twinkling of an eye, but elasticity stop gear can play the effect of buffering and offsetting, reduces deep degree of depth and speed, reduces the production of harmful effects.

2. The handle is the integrated configuration of spheroid and dead lever, and the dead lever can be dismantled to can adapt to different operational aspect, convenient rotation and atress, thereby be convenient for carry out the operation.

Drawings

Fig. 1 is a schematic structural view of a minimally invasive surgical drill for an orthopedic spine according to the present invention;

fig. 2 is a schematic external structural view of an orthopedic spine minimally invasive surgical drill according to the present invention;

fig. 3 is a schematic structural diagram at a in fig. 1.

In the figure: 1 working pipeline, 2 trephines, 3 handles, 4 grinding heads, 5 first annular blocks, 6 second annular blocks, 7 elastic limiting mechanisms, 8 spheres, 9 fixing rods, 10 limiting mechanisms, 11 telescopic rods, 12 springs, 13 threaded rods and 14 rubber sleeves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, an orthopedics backbone minimal access surgery bores, including working line 1, trephine 2 and handle 3, trephine 2 sets up in working line 1, trephine 2 one end is bistrique 4, and the trephine 2 other end and handle 3 fixed connection, bistrique 4 is used for wearing off the sclerotin, be equipped with the external screw thread on the trephine 2, first annular piece 5 is cup jointed to the screw thread on the external screw thread, one side that first annular piece 5 is close to working line 1 is equipped with second

annular piece

6, and 6 slip covers of second annular piece are established on trephine 2, first annular piece 5 can restrict trephine 2, second annular piece 6 passes through elasticity stop gear 7 and first annular piece 5 fixed connection.

Elasticity stop gear 7 sets up the telescopic link 11 in trephine 2 both sides including the symmetry, 11 one ends of telescopic link and 5 fixed connection of first annular piece, and the 11 other ends of telescopic link and 6 fixed connection of second annular piece, the cover is equipped with spring 12 on the telescopic link 11, telescopic link 11 plays limiting displacement, 12 one ends of spring and 5 fixed connection of first annular piece, and the 12 other ends of spring and 6 fixed connection of second annular piece, spring 12 plays the cushioning effect.

Handle 3 include with trephine 2 fixedly connected with

spheroid

8, 8 surperficial equipartitions of spheroid have a plurality of anti-skidding recesses, anti-skidding effect has, bilateral symmetry is equipped with two dead levers 9 about spheroid 8, fixed cover is equipped with rubber sleeve 14 on the dead lever 9, comfort level when guaranteeing to use, dead lever 9 passes through

stop gear

10 and 8 fixed connection of spheroid, stop gear 10 includes threaded rod 13 with the coaxial fixed connection of dead lever 9, be equipped with the screw hole groove that matches with threaded rod 13 on the spheroid 8, dead lever 9 can be dismantled, the adaptation needs the atress great, the great condition of rotation range.

The utility model discloses in, rotate first annular piece 5 and put suitable position, arrange the human body in through working pipeline 1, then rotate handle 3 and drive trephine 2 and rotate, the bistrique 4 on the trephine 2 grinds away the sclerotin, when grinding away the sclerotin and getting into the canalis spinalis, because there is the action of stretching into in the twinkling of an eye in the trephine 2 of feeling of falling to the sky, second annular piece 6 offsets with working pipeline 1 this moment, because the effect of spring 12, the atress when offsetting the falling, reduce deep speed and the degree of depth, when the atress needs great simultaneously, dismantle dead lever 9 from spheroid 8, be convenient for grip and the atress.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The minimally invasive surgical drill for the spine in the orthopedics department comprises a working pipeline (1), a trephine (2) and a handle (3), and is characterized in that the trephine (2) is arranged in the working pipeline (1), one end of the trephine (2) is a grinding head (4), the other end of the trephine (2) is fixedly connected with the handle (3), an external thread is arranged on the trephine (2), a first annular block (5) is sleeved on the external thread in a threaded manner, a second annular block (6) is arranged on one side, close to the working pipeline (1), of the first annular block (5), the second annular block (6) is sleeved on the trephine (2) in a sliding manner, the second annular block (6) is fixedly connected with the first annular block (5) through an elastic limiting mechanism (7), the handle (3) comprises a sphere (8) fixedly connected with the trephine (2), and two fixing rods (9) are symmetrically arranged on the upper side and the lower side of the sphere (8, the fixed rod (9) is fixedly connected with the ball body (8) through a limiting mechanism (10).

2. The minimally invasive surgical drill for the spine in the orthopedics department according to claim 1, characterized in that the elastic limiting mechanism (7) comprises telescopic rods (11) symmetrically arranged on two sides of the trephine (2), one end of each telescopic rod (11) is fixedly connected with the first annular block (5), the other end of each telescopic rod (11) is fixedly connected with the second annular block (6), a spring (12) is sleeved on each telescopic rod (11), one end of each spring (12) is fixedly connected with the first annular block (5), and the other end of each spring (12) is fixedly connected with the second annular block (6).

3. The minimally invasive surgical drill for the spine in the department of orthopaedics according to claim 1, characterized in that the limiting mechanism (10) comprises a threaded rod (13) coaxially and fixedly connected with the fixing rod (9), and a threaded hole groove matched with the threaded rod (13) is formed in the sphere (8).

4. The minimally invasive surgical drill for the spine in the department of orthopaedics according to claim 1, characterized in that a strip-shaped groove is formed in the position of the upper external thread of the trephine (2), and scale marks are arranged on the bottom wall of the strip-shaped groove.

5. The minimally invasive surgical drill for the spine in the department of orthopaedics according to claim 1, characterized in that the fixing rod (9) is fixedly sleeved with a rubber sleeve (14).

6. The minimally invasive surgical drill for the spine in the department of orthopaedics according to claim 1, characterized in that a plurality of anti-skid grooves are uniformly distributed on the surface of the ball body (8).