CN217566243U

CN217566243U - Thoracolumbar vertebra shaping positioning device

Info

Publication number: CN217566243U
Application number: CN202220363784.4U
Authority: CN
Inventors: 张季永
Original assignee: Wuhu No1 People's Hospital
Current assignee: Wuhu No1 People's Hospital
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-10-14
Anticipated expiration: 2032-02-22

Abstract

The utility model relates to the technical field of medical instruments, in particular to a thoracolumbar vertebra shaping and positioning device, which comprises a puncture needle, a needle core handle and a positioning device, wherein the puncture needle comprises a needle core handle arranged at the tail part; the connecting component is sleeved on the puncture needle and comprises an anti-rotation wing and an anti-rotation baffle; the guider is sleeved on the connecting assembly in a sleeved mode and used for assisting in adjusting and positioning, and comprises an anti-rotor wing groove arranged inside the guider and positioning needle through grooves arranged on the periphery of the guider and used for accurately adjusting needle inserting points; the anti-rotation baffle is matched with the stylet handle to be occluded and locked, so that the puncture needle and the connecting assembly are integrated, and the anti-rotation wings are matched with the anti-rotation wing grooves to limit rotation and longitudinal movement of the guider. The utility model discloses a combination of pjncture needle, outer sleeve and director for when can accomplishing centrum puncture in the art, the device of supplementary adjustment location makes the selection of needle point position and angle more accurate, reduces the operation degree of difficulty, reduces the radiation dose, and this patent low in manufacturing cost is honest and clean, easily production and maintenance.

Description

Thoracolumbar vertebra shaping positioning device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a thoracolumbar vertebra forming and positioning device.

Background

Thoracolumbar vertebral compression fracture is a common spinal injury, and is particularly common in middle-aged and elderly people. Vertebroplasty is a common surgical mode of compression fracture of thoracolumbar vertebrae, can relieve pain and can prevent further compression of vertebral bodies.

As the vertebroplasty is usually performed under the condition of non-direct vision, an operator firstly judges a general needle insertion point through a vertebral body surface marker, and then adjusts the accurate needle insertion point and the accurate needle insertion direction mainly through a C-arm machine. Because the existing vertebroplasty instrument only consists of a puncture needle and an outer sleeve and lacks of a positioning device, an operator often punctures the vertebral body by experience, and not only can damage a posterior edge marker of the vertebral body through multiple punctures, but also can enable the posterior edge bone surface to become uneven, so that the position of a needle inserting point can not be fixed by slipping of the operator. In the whole operation process, operators and patients need to receive fluoroscopy for several times or even dozens of times, the operation time is prolonged, the operation risk is increased, and in addition, high-dose radiation damages the body and even induces canceration.

The conventional outer sleeve and the guide positioning device can rotate relatively to influence the positioning accuracy, and in addition, the longitudinal movement of the guide positioning device can also influence the operation; the existing conventional operation uses an outer sleeve and a puncture needle to puncture firstly, and a guide positioning device is added for adjustment when the position is not good, but at the moment, if the outer sleeve and the puncture needle are pulled out, the positioning direction is lost, and the guide positioning position cannot be installed from the top end due to the existence of a handle.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a chest lumbar vertebrae takes shape positioner.

The utility model discloses the technical problem that will solve adopts following technical scheme to realize:

a thoracolumbar vertebroplasty positioning device, comprising:

the puncture needle is used for realizing centrum puncture and comprises a needle core handle arranged at the tail part;

the connecting component is sleeved on the puncture needle and comprises an anti-rotation wing and an anti-rotation baffle;

the guider is sleeved on the connecting assembly in a sleeved mode and used for assisting in adjusting and positioning, and comprises an anti-rotor wing groove arranged inside and positioning needle through grooves arranged on the periphery and used for accurately adjusting needle feeding points;

the anti-rotation baffle is matched with the stylet handle to be occluded and locked, so that the puncture needle and the connecting assembly are integrated, and the anti-rotation wings are matched with the anti-rotation wing grooves to limit rotation and longitudinal movement of the guider.

Preferably, the puncture needle further comprises a needle body and a needle point arranged at the head part of the needle body.

Preferably, the side surfaces of the two sides of the stylet handle are provided with baffle grooves matched with the anti-rotation baffles, and the baffle grooves on the side surfaces of the two sides of the stylet handle are distributed in a staggered manner.

Preferably, coupling assembling still includes the overcoat sleeve on the needle body, with muffjoint's sleeve handle, prevent that the rotor sets up on the outside lateral wall of sleeve, the nook closing member handle sets up in the sleeve handle, prevent that the baffle setting is in the inside both sides of sleeve handle soon.

Preferably, an inner handle groove is formed in the sleeve handle, the stylet handle is arranged in the inner handle groove, and the anti-rotation baffles are distributed on the side walls of the two sides of the inner handle groove in a staggered mode.

Preferably, the tail end of the sleeve is provided with a locking inner end, and the sleeve handle is provided with a locking outer end matched with the locking inner end.

Preferably, the cross sections of the inner locking end and the outer locking end are in corresponding polygonal structures.

Preferably, the guider is of a cylindrical structure with one conical end, the middle of the guider is provided with a guider through groove which is communicated end to end, the guider is sleeved on the sleeve through the guider through groove, and the positioning needle through grooves are uniformly distributed around the guider through groove along the circumferential direction.

Preferably, the anti-rotation wing groove is arranged on the inner groove wall of the guide through groove along the axis direction.

The beneficial effects of the utility model are that:

the utility model, through the combination of the puncture needle, the outer sleeve and the guider, can complete centrum puncture in the operation and simultaneously assist the device for adjusting and positioning, so that the selection of the needle insertion point position and the angle is more accurate, the operation difficulty is reduced, the radiation dose is reduced, the patent has low manufacturing cost and is easy to produce and maintain; the problem of current guiding orientation device easily rotate and easy longitudinal movement lead to the location accuracy not high and influence operation is solved.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the puncture needle of the present invention;

fig. 3 is a schematic structural view of the connection assembly of the present invention;

fig. 4 is a schematic structural view of the middle sleeve of the present invention;

FIG. 5 is a schematic structural view of the middle sleeve handle of the present invention;

fig. 6 is a schematic structural view of the middle guider of the present invention.

In the figure: 1. puncturing needle; 11. a needle body; 12. a needle tip; 13. a stylet handle; 14. a baffle plate groove; 2. a connection assembly; 21. a sleeve; 22. a sleeve handle; 23. a rotor wing is prevented; 24. an anti-rotation baffle; 25. an inner handle groove; 26. locking the inner end; 27. locking the outer end; 3. a guide; 31. a guider through groove; 32. an anti-rotor groove; 33. the pilot pin is through the groove.

Detailed Description

In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 1, a thoracolumbar vertebra shaping positioning device mainly comprises a puncture needle 1, a connecting assembly 2 and a guider 3, wherein the connecting assembly 2 is sleeved on the puncture needle 1, the guider 3 is sleeved on the connecting assembly 2, and the puncture needle 1 and the connecting assembly 2 are correspondingly provided with a needle core handle 13 and an anti-rotation baffle 24 which are mutually matched for occlusion and locking, so that the puncture needle 1 and the connecting assembly 2 are integrated into a whole; the connecting component 2 and the guider 3 are correspondingly provided with an anti-rotation wing 23 and an anti-rotation wing groove 32 which are matched with each other to limit the rotation and the longitudinal movement of the guider 3.

Specifically, as shown in fig. 2, the puncture needle 1 mainly includes a needle body 11, a needle point 12 and a needle core handle 13, the needle point 12 and the needle core handle 13 are correspondingly disposed at the head and the tail ends of the needle body 11, and further, two baffle grooves 14 are disposed on the two side surfaces of the needle core handle 13 in a staggered manner.

As shown in fig. 3 to 5, the connection assembly 2 mainly includes a sleeve 21, a sleeve handle 22, an anti-rotation wing 23, an anti-rotation baffle 24, a locking inner end 26, and a locking outer end 27. The sleeve 21 is used for being sleeved on the needle body 11, and the needle point 12 extends out of the sleeve 21; the two anti-rotation wings 23 are symmetrically fixed on the outer side rod wall of the sleeve 21, and the distribution direction of the two anti-rotation wings is the same as the axial direction of the sleeve 21; the inner locking end 26 is disposed at the end of the sleeve 21, the outer locking end 27 is disposed on the outer end wall of the sleeve handle 22, and the cross sections of the inner locking end 26 and the outer locking end 27 are polygonal structures, in this embodiment, hexagonal structures. The sleeve 21 is connected to the sleeve handle 22 by the cooperation between the locking inner end 26 and the locking outer end 27. Handle recess 25 in seted up on the sleeve handle 22, nook closing member handle 13 on the pjncture needle 1 is located interior handle recess 25, it is equipped with two to prevent revolving baffle 24, corresponds to set up including handle recess 25 both sides limit and be the staggered distribution, prevent revolving baffle 24's position and the 14 position looks adaptations of baffle recess on the nook closing member handle 13, through preventing revolving baffle 24 and the mutual interlock locking of baffle recess 14, realize pjncture needle 1, coupling assembling 2 and form integratively, made things convenient for the art person to operate.

As shown in fig. 6, the guider 3 is a circular cone-shaped cylinder structure at the head, a guider through groove 31 running through from head to tail is arranged in the middle of the guider 3, the guider 3 is sleeved on the sleeve 21 through the guider through groove 31, two rotor wing preventing grooves 32 which are symmetrically distributed are arranged on the inner side wall of the guider through groove 31, and the two rotor wing preventing grooves 32 are matched with the two rotor wings 23 on the sleeve 21, so that the rotation and longitudinal movement of the guider 3 are limited. Six positioning needle through grooves 33 for accurately adjusting needle feeding points are uniformly distributed on the guider 3 around the guider through groove 31 as the circle center.

Before use, the operator firstly completes the assembly of the sleeve 21 and the sleeve handle 22 through the locking inner end 26 and the locking outer end 27, and then passes the puncture needle 1 through the sleeve 21, and the sleeve handle 22 and the needle core handle 13 are locked into a whole through the snapping of the anti-rotation baffle 24 and the baffle groove 14. Next, the operator inserts the sleeve 21 through the guide slot 31 of the guide 3 and locks it by means of the anti-rotation wings 23 and the anti-rotation wings slots 32, completing the assembly of the device.

When the bone cement injection device is used, an operator holds the sleeve handle 22, a little bone on the rear surface of a vertebral pedicle is punctured through the needle point 12 at an opening of skin in an operative field, the position and the angle of a needle inserting point are determined through the C-arm machine, the positioning needle through groove 33 uniformly distributed on the periphery of the guider 3 is selected as a puncture hole to finely adjust the needle inserting point, a 2.5mm Kirschner wire is used as an auxiliary penetrating positioning needle to puncture the bone on the rear surface of the vertebral pedicle along the positioning needle through groove 33, the operation is performed again through perspective, the operation is repeated until the position and the angle of the needle inserting point are satisfied, after the guider 3 is carefully removed, the sleeve 21 and the puncture needle 1 are sequentially removed, the sleeve 21 is drilled into a puncture tunnel along the Kirschner wire, the Kirschner wire is replaced by the puncture needle 1, the front edge is further penetrated under the guidance of the C-arm machine until the position of about 2/3 of the vertebral body is reached, and subsequently, the puncture needle 1 can be replaced by a bone cement push rod, and the bone cement injection is completed.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and what is described in the specification are the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are intended to fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a chest lumbar vertebrae shaping positioner which characterized in that: the method comprises the following steps:

the puncture needle (1) is used for realizing centrum puncture and comprises a needle core handle (13) arranged at the tail part;

the connecting component (2) is sleeved on the puncture needle and comprises an anti-rotation wing (23) and an anti-rotation baffle (24);

the guider (3) is sleeved on the connecting component and used for assisting in adjusting and positioning, and comprises an anti-rotor wing groove (32) arranged inside and positioning needle through grooves (33) arranged on the periphery and used for accurately adjusting needle feeding points;

the anti-rotation baffle (24) is matched with the stylet handle (13) to be occluded and locked, so that the puncture needle (1) and the connecting assembly (2) are integrated, and the anti-rotation wings (23) are matched with the anti-rotation wing grooves (32), so that the guide device (3) is limited to rotate and move longitudinally.

2. The thoracolumbar spine shaping and positioning device of claim 1, wherein: the puncture needle (1) also comprises a needle body (11) and a needle point (12) arranged at the head part of the needle body (11).

3. The thoracolumbar vertebroplasty positioning device of claim 2, wherein: baffle grooves (14) matched with the anti-rotation baffles (24) are formed in the side faces of the two sides of the stylet handle (13), and the baffle grooves (14) in the side faces of the two sides of the stylet handle (13) are distributed in a staggered mode.

4. The thoracolumbar spine shaping and positioning device of claim 3, wherein: coupling assembling (2) still include sleeve (21) of overcoat on needle body (11), sleeve handle (22) of being connected with sleeve (21), prevent rotor (23) and set up on sleeve (21) outside lateral wall, nook closing member handle (13) set up in sleeve handle (22), prevent that whirl baffle (24) set up in sleeve handle (22) inside both sides.

5. The thoracolumbar spine shaping and positioning device of claim 4, wherein: an inner handle groove (25) is formed in the sleeve handle (22), the stylet handle (13) is arranged in the inner handle groove (25), and the anti-rotation baffles (24) are distributed on the side walls of the two sides of the inner handle groove (25) in a staggered mode.

6. The thoracolumbar spine shaping and positioning device of claim 4, wherein: the tail end of the sleeve (21) is provided with a locking inner end (26), and the sleeve handle (22) is provided with a locking outer end (27) matched with the locking inner end (26).

7. The thoracolumbar spine shaping and positioning device of claim 6, wherein: the cross sections of the locking inner end (26) and the locking outer end (27) are of corresponding polygonal structures.

8. The thoracolumbar vertebroplasty positioning device of claim 4, wherein: guider (3) are the circular cone column structure for one end, the middle part of guider (3) is equipped with guider through groove (31) that head and the tail link up, guider (3) lead to groove (31) suit on sleeve (21) through guider, location needle leads to groove (33) and follows circumference evenly distributed and lead to groove (31) all around at the guider.

9. The thoracolumbar spine shaping and positioning device of claim 8, wherein: the anti-rotor wing groove (32) is arranged on the inner groove wall of the guide through groove (31) along the axis direction.