CN113975164A

CN113975164A - Spliced multi-angle needle insertion external fixator

Info

Publication number: CN113975164A
Application number: CN202111418007.1A
Authority: CN
Inventors: 吕乾; 齐欣; 赵泽雨; 陈汉芬; 夏燊; 潘鑫龙
Original assignee: 920th Hospital of the Joint Logistics Support Force of PLA
Current assignee: 920th Hospital of the Joint Logistics Support Force of PLA
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-01-28

Abstract

The invention provides a spliced multi-angle needle inserting external fixator which comprises a first slide bar, an adjusting block, a second slide bar, a slide block, a needle fixing block and a half needle, wherein one end of the first slide bar is connected with the side wall of the adjusting block, a half ball groove is formed in the adjusting block, one side, away from the first slide bar, of the half ball groove is opened, one end of the second slide bar is connected with a ball body, the ball body is movably clamped in the half ball groove, one end, away from the adjusting block, of the first slide bar penetrates through the slide block, one end of the slide block is of an arc structure, the needle fixing block is connected with one end, away from the arc structure, of the slide block, an oblong through hole penetrates through the needle fixing block from top to bottom, the half needle penetrates through the oblong through hole, a fixing ring sleeve is sleeved on the half needle, and one side, close to the slide block, of the fixing ring sleeve is rotatably connected with the inner wall of the oblong through hole. The invention can carry out double adjustment to the direction of the half needle, can also adjust the position of the half needle, improves the adjustment range, can disassemble the device and is convenient to use.

Description

Spliced multi-angle needle insertion external fixator

Technical Field

The invention mainly relates to the technical field of medical instruments, in particular to a spliced multi-angle needle inserting external fixator.

Background

One of the techniques of needle insertion (inner needle) and needle puncturing is to insert filiform needles into the body. Generally, the operation is performed by pressing the meridians; a needle is inserted into a predetermined depth from a shallow depth by a preparatory technique such as pushing the needle into the acupoint, and a half needle is usually used. The half needle is widely used for fixing bones in surgical operations, and the half needle for orthopedic medical external fixation in the prior art is generally fixed by matching a common needle clamping connecting column with a fixing nut connected with the bottom end of the common needle clamping connecting column.

For example, patent application No. CN201520013708.0, including the clamp splice body, clamp splice body top is provided with first bolt, the bottom is provided with the second bolt, the clamp splice body includes clamp splice and lower clamp splice, it all sets up to L type structure with lower clamp splice to go up the clamp splice, it is connected through the third bolt with lower clamp splice to go up the clamp splice, it is angle fixity with lower clamp splice through the rotation regulation in third bolt department to go up the clamp splice, it is provided with a set of half needle perforation at least on the clamp splice to go up, be used for passing of half needle, the top of going up the clamp splice and the bottom of lower clamp splice are provided with respectively with the first screw hole with first bolt and second bolt matched with. Although the angle and the direction of the half needle are adjusted, the adjustment still has limitations, and the device is fixed, is inconvenient to disassemble and has low practicability.

Disclosure of Invention

The invention mainly provides a spliced multi-angle needle insertion external fixator which is used for solving the technical problems in the background technology.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the outer needle inserting fixator comprises a first sliding rod, an adjusting block, a second sliding rod, a sliding block, a needle fixing block and a half needle, wherein one end of the first sliding rod is connected with the side wall of the adjusting block, a half ball groove is formed in the adjusting block, one side of the half ball groove, which is far away from the first sliding rod, is provided with an opening, one end of the second sliding rod is connected with a ball body, and the ball body is movably clamped into the half ball groove; the first sliding rod is far away from one end of the adjusting block and penetrates through the sliding block, one end of the sliding block is of an arc-shaped structure, the needle fixing block is connected with one end of the arc-shaped structure of the sliding block, the needle fixing block is of an arc-shaped structure, long circular through holes are formed in the needle fixing block in a penetrating mode from top to bottom, half needles penetrate through the long circular through holes, fixed ring sleeves are sleeved on the half needles, and the fixed ring sleeves are close to one side of the sliding block and the inner wall of each long circular through hole are connected in a rotating mode.

Furthermore, a first threaded positioning hole is formed in the top of the adjusting block and located right above the hemispherical groove, a first blind hole screw is connected to the first threaded positioning hole in a threaded mode, an arc-shaped groove is formed in the bottom of the first blind hole screw, and when the bottom of the first blind hole screw is abutted to the ball body, the arc-shaped groove is matched with the contact surface of the ball body in contact with the ball body.

Furthermore, a channel hole is formed in the sliding block, the first sliding rod movably penetrates through the channel hole, a second threaded positioning hole is formed in the top of the sliding block and located right above the channel hole, and a second blind hole screw is connected to the second threaded positioning hole in a threaded connection mode.

Furthermore, a third threaded positioning hole is formed in the side wall of the needle fixing block, which is far away from one end of the sliding block, and is located right in front of the fixing ring sleeve, and a third blind hole screw is connected to the third threaded positioning hole in a threaded manner.

Furthermore, the tops of the first blind hole screw, the second blind hole screw and the third blind hole screw are all provided with inner hexagonal grooves.

Compared with the prior art, the invention has the beneficial effects that:

the invention is closer to the cylindrical appearance anatomy of four limbs of a human body, has better multi-angle (three-dimensional integration of coronal position, sagittal position and horizontal position) fixation when assisting a doctor to operate the needle insertion and fix the needle, and the fixed needle is fixed according to multi-angle and multi-plane, so that the fracture broken end can obtain the maximum biomechanical stability, the angle can be well switched in a required range, the adjustable angle range is wider, the needle is convenient for the doctor to disassemble and assemble, and the stability, the practicability, the simplicity and the easiness are improved.

The present invention will be explained in detail below with reference to the drawings and specific embodiments.

Drawings

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

FIG. 2 is a sectional view of the inner structure of the adjusting block of the present invention;

FIG. 3 is a side cross-sectional view of the slider and needle mount of the present invention.

In the figure: 1. a first slide bar; 2. an adjusting block; 21. a hemispherical groove; 22. a first threaded locating hole; 3. a second slide bar; 31. a sphere; 4. a slider; 41. a passage hole; 42. a second threaded locating hole; 5. a needle fixing block; 51. an oblong through hole; 52. a third threaded locating hole; 6. half a needle; 61. fixing the loop; 7. a first blind hole screw; 71. an arc-shaped groove; 8. a second blind hole screw; 9. and a third blind hole screw.

Detailed Description

In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In an embodiment, please refer to fig. 1-3, the external fixator capable of splicing multiple angle needle insertion includes a first slide bar 1, an adjusting block 2, a second slide bar 3, a slide block 4, a needle fixing block 5 and a half needle 6, wherein one end of the first slide bar 1 is connected to a side wall of the adjusting block 2, a half ball groove 21 is arranged inside the adjusting block 2, one side of the half ball groove 21 away from the first slide bar 1 is open, one end of the second slide bar 3 is connected with a ball 31, the ball 31 is movably clamped into the half ball groove 21, a first thread positioning hole 22 is arranged right above the half ball groove 21 at the top of the adjusting block 2, a first blind hole screw 7 is connected to the first thread positioning hole 22 through a female thread, an arc groove 71 is arranged at the bottom of the first blind hole screw 7, and when the bottom of the first blind hole screw 7 abuts against the ball 31, the arc groove 71 is matched with a contact surface of the ball 31. Through the sphere pair structure that hemisphere groove 21 and spheroid 31 constitute for can freely adjust in many directions in the angle of injecing between second slide bar 3 and the regulating block 2, after adjusting suitable angle, utilize first blind hole screw 7 to screw up in first screw thread locating hole 22, make arc recess 71 go to butt spheroid 31 contact surface, can fix the angle of adjusting well.

Specifically, first slide bar 1 is kept away from 2 one ends of regulating block and is run through

slider

4, and 4 one ends of slider are the arc structure, and needle fixed block 5 is connected with slider 4's arc structure one end, needle fixed block 5 is the arc structure, can match slider 4's arc angle and continue to make the radian and extend, and needle fixed block 5 from the top down runs through and is equipped with long circle through-hole 51, and half needle 6 alternates long circle through-hole 51, has seted up channel hole 41 on the slider 4, and first slide bar 1 activity runs through channel hole 41, and has seted up second thread locating hole 42 directly over slider 4 top is located channel hole 41, and second thread locating hole 42 female connection has second blind hole screw 8. The first slide bar 1 penetrates through the channel hole 41 in the slide block 4 to enable the slide block 4 to move in a translation mode, when the slide block moves to a specified position, the second blind hole screw 8 is screwed in the second threaded positioning hole 42 to abut against the surface of the first slide bar 1, and therefore position limitation is conducted, and the oblong through hole 51 is designed to facilitate that the adjustment range of the half needle 6 can be expanded as much as possible under the condition that the half needle swings left and right to adjust the angle.

Specifically, a fixing ring sleeve 61 is sleeved on the half needle 6, one side of the fixing ring sleeve 61, which is close to the slider 4, is rotatably connected with the inner wall of the oblong through hole 51, so that the half needle 6 can be conveniently adjusted in a left-right angle in the oblong through hole 51, if needed, the sleeving mode of the half needle 6 and the fixing ring sleeve 61 can be set to be sliding adjustment or fixed in position, a third threaded positioning hole 52 is formed in the side wall of one end, which is far away from the slider 4, of the needle fixing block 5, the third threaded positioning hole 52 is located right in front of the fixing ring sleeve 61, a third blind hole screw 9 is in threaded connection with the third threaded positioning hole 52, and after the position of the half needle 6 is adjusted, the third blind hole screw 9 is screwed in the third threaded positioning hole 52, so that the half needle 6 is abutted against the fixing ring sleeve 61 to perform position limitation on the half needle 6.

It should be noted that the top of each of the first blind hole screw 7, the second blind hole screw 8 and the third blind hole screw 9 is provided with an inner hexagonal groove, and the screw structure of the blind hole is adopted, so that the screw cannot be influenced by the protrusion in operation and use, and meanwhile, the inner hexagonal groove is convenient to screw.

The specific operation mode of the invention is as follows:

when the medical staff uses the medical staff, the angle between the second sliding rod 3 and the adjusting block 2 can be freely adjusted in multiple directions through the spherical pair structure formed by the semispherical groove 21 of the adjusting block 2 and the sphere 31, when the angle is adjusted to a proper angle, the first blind hole screw 7 is screwed in the first threaded positioning hole 22, so that the arc-shaped groove 71 abuts against the contact surface of the ball 31, performs angular fixation, then performs translational motion on the first slide bar 1 through the slide block 4, when moved to the designated position, the second blind screw 8 is tightened in the second threaded positioning hole 42, the surface of the first slide bar 1 is abutted to limit the position, then the position of the half needle 6 is adjusted in a left-right swinging mode and after the position is adjusted to a proper position, the third blind screw 9 is screwed in the third threaded positioning hole 52, thereby abutting against the fixing collar 61 to position-define the half pin 6.

The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above-described embodiments, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.

Claims

1. Can splice multi-angle needle insertion external fixator, including first slide bar (1), regulating block (2), second slide bar (3), slider (4), needle fixed block (5) and half needle (6), its characterized in that: one end of the first sliding rod (1) is connected with the side wall of the adjusting block (2), a semispherical groove (21) is formed in the adjusting block (2), one side, far away from the first sliding rod (1), of the semispherical groove (21) is provided with an opening, one end of the second sliding rod (3) is connected with a sphere (31), and the sphere (31) is movably clamped in the semispherical groove (21); adjusting block (2) one end is kept away from in first slide bar (1) and is run through slider (4), slider (4) one end is the arc structure, just needle fixed block (5) with the arc structure one end of slider (4) is connected, needle fixed block (5) are the arc structure, needle fixed block (5) from the top down run through and are equipped with long circle through-hole (51), half needle (6) alternate long circle through-hole (51), just fixed ring cover (61) have been cup jointed on half needle (6), fixed ring cover (61) are close to slider (4) one side with long circle through-hole (51) inner wall is the rotation and connects.

2. The spliceable multi-angle needle insertion external fixator of claim 1, wherein: first screw thread locating hole (22) has been seted up directly over regulating block (2) top is located hemisphere groove (21), first screw thread locating hole (22) internal thread connection has first blind hole screw (7), first blind hole screw (7) bottom is equipped with arc recess (71), and works as first blind hole screw (7) bottom with during spheroid (31) looks butt, arc recess (71) are identical with spheroid (31) contact surface that contacts.

3. The spliceable multi-angle needle insertion external fixator of claim 2, wherein: the sliding block (4) is provided with a channel hole (41), the first sliding rod (1) movably penetrates through the channel hole (41), the top of the sliding block (4) is located right above the channel hole (41) and provided with a second threaded positioning hole (42), and a second blind hole screw (8) is connected to the second threaded positioning hole (42) in a threaded mode.

4. The spliceable multi-angle needle insertion external fixator of claim 3, wherein: and a third threaded positioning hole (52) is formed in the side wall of one end, far away from the sliding block (4), of the needle fixing block (5), the third threaded positioning hole (52) is located right in front of the fixing ring sleeve (61), and a third blind hole screw (9) is in threaded connection with the third threaded positioning hole (52).

5. The spliceable multi-angle needle insertion external fixator of claim 4, wherein: the top parts of the first blind hole screw (7), the second blind hole screw (8) and the third blind hole screw (9) are all provided with inner hexagonal grooves.