CN210811447U

CN210811447U - Bone traction needle

Info

Publication number: CN210811447U
Application number: CN201921519832.9U
Authority: CN
Inventors: 陆新颜
Original assignee: Changzhou Suchuan Medical Technology Co ltd
Current assignee: Changzhou Suchuan Medical Technology Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-06-23
Anticipated expiration: 2029-09-12

Abstract

The utility model discloses a bone traction needle, which comprises a needle rod, wherein one end of the needle rod is provided with a rod head, one end of the rod head is provided with a column body, the other end of the needle rod is in threaded connection with a split needle rod, one end of the split needle rod is fixedly connected with a threaded needle head, the tail end of the threaded needle head is provided with a tip, and the outer side wall of the tip is provided with a tangent plane; the tail end of the threaded needle head is provided with the tip end, and the tip end is provided with the arc-shaped tangent plane, so that the friction force between the threaded needle head and a needle channel and the bone is reduced when the threaded needle head drills into the bone, and the speed of the leading needle drilling is higher and more accurate, and the heat productivity in the drilling process is reduced; when the split needle bar is used, the split needle bar can be detached or added according to specific requirements, and the length of the needle bar can be increased or decreased so as to meet different requirements; when the angle of the rod body needs to be adjusted, only the second needle rod body needs to be pulled, so that the damping rotating ball in the first needle rod body rotates in the second needle rod body, and the angle is adjusted.

Description

Bone traction needle

Technical Field

The utility model relates to the technical field of orthopedic instruments, in particular to a bone traction needle.

Background

The bone traction is to directly pull bones through a bone traction needle, so that effective reduction and fixation are carried out on patients with fracture and dislocation, and the bone traction is often used for patients who have skin injury, severe swelling, wound infection or severe bone crushing and are not suitable for in-row fixation, and the method mainly comprises the following steps: skull traction, olecranon traction, femoral condylar traction, tibial tubercle traction, calcaneal traction and the like;

the needle head part of the existing bone traction needle is single in structure, so that when the bone traction needle is drilled into a bone, the bone traction needle is drilled slowly and is easy to heat, the length and the angle of the existing bone traction needle cannot be adjusted, and certain limitations are provided.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model aims to provide a bone traction needle, tail end through setting up the screw needle head sets up most advanced, set up curved tangent plane on the most advanced, make the screw needle head when boring into the skeleton, reduce and the needle says and the frictional force between the skeleton, through setting up multiunit components of a whole that can function independently needle bar, make multiunit components of a whole that can function independently needle bar dismantle, the length of the body of adjusting rod, through setting up two needle bar bodies, it changes the ball to set up dead lever and damping in the inside of the first needle bar body, it sets up the stopper to make the damping change the inside of the second needle bar body of ball on fixed to the first needle bar body through the dead lever, it is spacing to make first needle bar body and second needle bar.

The above technical purpose of the present invention can be achieved by the following technical solutions:

bone traction needle, including the needle bar, the one end of needle bar is equipped with the pole head, the one end of pole head is equipped with the cylinder, the other end threaded connection of needle bar has the components of a whole that can function independently needle bar, the one end fixedly connected with screw thread syringe needle of components of a whole that can function independently needle bar, the tail end of screw thread syringe needle is equipped with most advanced, most advanced lateral wall has the tangent plane.

Furthermore, the number of the split needle bars is at least three, and the two split needle bars are connected through threads.

Furthermore, the outer side wall of the split needle rod is provided with anti-slip threads.

Through setting up anti-skidding line, increase the frictional force of components of a whole that can function independently needle bar surface, make the more firm fixed of needle guide.

Furthermore, one end of the split needle rod is fixedly connected with an external thread column, and the other end of the split needle rod is fixedly connected with an internal thread groove.

The split needle rods are connected with each other through the external thread columns and the internal thread grooves by arranging the external thread columns and the internal thread grooves.

Further, the shape of the cylinder is a cube structure.

The cylinder of square structure is conveniently connected with other apparatus.

Furthermore, the shape of the tangent plane is an inward-concave arc-shaped structure.

The concave arc structure can reduce the contact area of the tip and the skeleton, and further achieve the purpose of reducing friction force.

Further, the needle bar includes first needle bar body and second needle bar body, first needle bar body with second needle bar body block is connected.

The first needle bar body and the second needle bar body form a needle bar main body.

Further, the inside of the first needle bar body is equipped with the dead lever, the inside of dead lever is equipped with the gag lever post, the ball is changeed in the one end fixedly connected with damping of dead lever, the inside of the second needle bar body is close to the one end of the first needle bar body has seted up the inner groovy, the inside fixedly connected with stopper of inner groovy.

Through setting up dead lever and damping commentaries on classics ball in the inside of first needle bar body, make the damping change the ball and fix to the inside of the second needle bar body on the first needle bar body through the dead lever and set up the stopper, make the stopper change the ball to the damping and carry on spacingly, when the angle of the body of rod of needs regulation, only need pull the second needle bar body, make the internal damping of first needle bar change the ball at the internal rotation of second needle bar, carry out angle regulation.

To sum up, the utility model discloses following beneficial effect has:

1. the tail end of the threaded needle head is provided with the tip end, and the tip end is provided with the arc-shaped tangent plane, so that the friction force between the threaded needle head and a needle channel and the bone is reduced when the threaded needle head drills into the bone, and the speed of the leading needle drilling is higher and more accurate, and the heat productivity in the drilling process is reduced;

2. the split needle bars are arranged, and the two ends of each split needle bar are respectively composed of the external thread columns and the internal thread grooves, so that the split needle bars can be mutually disassembled;

3. through setting up two needle bar bodies, set up dead lever and damping in the inside of first needle bar body and change the ball, make the damping change the ball and pass through the dead lever and fix to first needle bar body on, set up the stopper in the inside of second needle bar body, make the stopper change the ball to the damping and carry on spacingly, when the angle of the body of rod needs regulation, only need to pull the second needle bar body, make the internal damping of first needle bar body change the ball and rotate in second needle bar body, carry out angle regulation.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a view showing the connection of the split needle shaft in the present embodiment;

FIG. 3 is a diagram illustrating a connection relationship between a first needle bar and a second needle bar in the present embodiment;

fig. 4 is an enlarged view of the area a in fig. 3 according to the present embodiment.

In the figure, 1, a needle bar; 11. a first needle bar body; 111. fixing the rod; 112. a limiting rod; 113. damping the rotary ball; 12. a second needle bar body; 121. an inner groove; 122. a limiting block; 2. a club head; 3. a cylinder; 4. a split needle bar; 41. anti-skid lines; 42. an externally threaded post; 43. an internal thread groove; 5. a threaded needle; 6. a tip; 7. cutting into a section.

Detailed Description

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

In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Refer to fig. 1, be the utility model discloses bone traction needle in the preferred embodiment, including needle bar 1, the one end of needle bar 1 is equipped with pole head 2, the one end of pole head 2 is equipped with cylinder 3, the other end threaded connection of needle bar 1 has components of a whole that can function independently needle bar 4, the one end fixedly connected with screw thread syringe needle 5 of components of a whole that can function independently needle bar 4, the tail end of screw thread syringe needle 5 is equipped with most advanced 6, the lateral wall of most advanced 6 has tangent plane 7.

Set up most advanced 6 through the tail end at screw needle 5, set up curved tangent plane 7 on most advanced 6, make screw needle 5 when boring into the skeleton, reduce with the needle way and the skeleton between the frictional force, and then make the speed that the guide pin bored into faster, more accurate and reduce the calorific capacity of boring the in-process.

Referring to fig. 2, at least three split needle bars 4 are provided, and two split needle bars 4 are connected through a thread.

Referring to fig. 2, the outer side wall of the split needle bar 4 has an anti-slip pattern 41.

Referring to fig. 2, an external thread column 42 is fixedly connected to one end of the split needle bar 4, and an internal thread groove 43 is fixedly connected to the other end of the split needle bar 4.

The split needle bars 4 are connected to each other by the male screw posts 42 and the female screw grooves 43 by providing the male screw posts 42 and the female screw grooves 43.

Referring to fig. 1, the cylinder 3 has a square structure.

Referring to fig. 1, the cut surface 7 has an inwardly depressed arc shape.

The concave arc structure can reduce the contact area of the tip 6 and the bone, and further achieve the purpose of reducing friction force.

Referring to fig. 3, the needle bar 1 includes a first needle bar body 11 and a second needle bar body 12, and the first needle bar body 11 is connected with the second needle bar body 12 in a clamping manner.

Referring to fig. 4, the inside of the first needle bar body 11 is provided with a fixing rod 111, the inside of the fixing rod 111 is provided with a limiting rod 112, one end of the fixing rod 111 is fixedly connected with a damping rotating ball 113, the inside of the second needle bar body 12 is close to one end of the first needle bar body 11, an inner groove 121 is formed in one end of the inner groove 121, and a limiting block 122 is fixedly connected to the inside of the inner groove 121.

Through setting up dead lever 111 and damping commentaries on classics ball 113 in the inside of first body of the needle rod 11, make damping commentaries on classics ball 113 pass through dead lever 111 and fix to first body of the needle rod 11 on, set up stopper 122 in the inside of second body of the needle rod 12, make stopper 122 change ball 113 to the damping and carry on spacingly, when the angle of the body of the needs regulation body of the rod, only need pull out second body of the needle rod 12, make damping in the first body of the needle rod 11 change ball 113 at the internal rotation of second body of the needle rod 12, angle regulation carries out.

The specific implementation process comprises the following steps: when using, at first, according to the length of concrete needs, assemble split needle pole 4, make through external screw thread post 42 and internal thread groove 43 interconnect between the split needle pole 4, connect the back of accomplishing, through inserting the needle and bore into the device, make the needle insert the skeleton and pull, when needs angle regulation, pull out second needle pole body 12, make the damping in the first needle pole body 11 change ball 113 at the internal rotation of second needle pole body 12, carry out angle regulation.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Bone traction needle, its characterized in that: including needle bar (1), the one end of needle bar (1) is equipped with pole head (2), the one end of pole head (2) is equipped with cylinder (3), the other end threaded connection of needle bar (1) has components of a whole that can function independently needle bar (4), the one end fixedly connected with screw thread syringe needle (5) of components of a whole that can function independently needle bar (4), the tail end of screw thread syringe needle (5) is equipped with most advanced (6), the lateral wall of most advanced (6) has tangent plane (7).

2. The bone distraction needle of claim 1, wherein: the number of the split needle bars (4) is at least three, and the two split needle bars (4) are connected through threads.

3. The bone distraction needle of claim 1, wherein: the outer side wall of the split needle rod (4) is provided with anti-skid grains (41).

4. The bone distraction needle of claim 1, wherein: one end of the split needle rod (4) is fixedly connected with an external thread column (42), and the other end of the split needle rod (4) is fixedly connected with an internal thread groove (43).

5. The bone distraction needle of claim 1, wherein: the cylinder (3) is in a cube structure.

6. The bone distraction needle of claim 1, wherein: the section (7) is in an inwards concave arc structure.

7. The bone distraction needle of claim 1, wherein: the needle bar (1) comprises a first needle bar body (11) and a second needle bar body (12), and the first needle bar body (11) is connected with the second needle bar body (12) in a clamping mode.

8. The bone distraction needle of claim 7, wherein: the inside of first needle bar body (11) is equipped with dead lever (111), the inside of dead lever (111) is equipped with gag lever post (112), ball (113) are changeed in the one end fixedly connected with damping of dead lever (111), the inside of second needle bar body (12) is close to inner groovy (121) have been seted up to the one end of first needle bar body (11), inner groovy (121) inside fixedly connected with stopper (122).