CN213129859U

CN213129859U - Expansion sleeve device for minimally invasive treatment of thoracolumbar vertebral fracture

Info

Publication number: CN213129859U
Application number: CN202021031863.2U
Authority: CN
Inventors: 冯业进
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-05-07
Anticipated expiration: 2030-06-08

Abstract

The utility model discloses a chest lumbar vertebrae fracture wicresoft treatment expansion sleeve ware relates to medical instrument technical field, the female joint comprises a sleeve, telescopic bottom surface fixedly connected with cone, the interior passageway of round sleeve has been seted up to telescopic inside. The utility model relates to a rational in infrastructure, it can make solid fixed ring cover in telescopic outside through the user of service personnel holding the tubulose handle, twist the both ends that move set screw and make two set screw respectively and push up fixed ring on two flat keyways, realize fast assembly and guarantee that the operation is gone on fast, the operation speed is accelerated, insert the cone and indulge the shape incision on the skin, blunt nature expansion vertebra parasympathetic muscle step by step in proper order by thin to thick under the effect of cone, put into the inside that the button head screw made its thread end fall into the nail hole from round sleeve inner channel department, make the button head screw remain vertical state throughout under the effect in nail hole, drive the button head screw and need the fixed part contact, improve the degree of accuracy that the button head screw put into.

Description

Expansion sleeve device for minimally invasive treatment of thoracolumbar vertebral fracture

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an expansion sleeve device for minimally invasive treatment of thoracolumbar vertebral fracture.

Background

The medical apparatus refers to instruments, equipment, appliances, in-vitro diagnostic reagents and calibrators, materials and other similar or related articles which are directly or indirectly used for the human body, and comprises required computer software; the effect is mainly obtained by physical and other ways, not by pharmacological, immunological or metabolic ways, or is only assisted although the ways are involved; for the purpose of diagnosis, prevention, monitoring, treatment, or amelioration of a disease; diagnosis, monitoring, treatment, mitigation, or functional compensation of injury; examination, replacement, regulation or support of a physiological structure or physiological process; support or maintenance of life; controlling pregnancy; by examining a sample from a human body, information is provided for medical or diagnostic purposes.

Thoracolumbar fractures are common spine fractures, a pedicle screw is placed in an open surgery in the prior art, a posterior median incision is adopted, large wounds and much bleeding are stripped towards two sides, paraspinal muscles need to be widely stripped in the surgery, and thoracolumbar fractures are increasingly attracted to be treated by fixing the pedicle screw in a percutaneous mode along with the development of minimally invasive technology. Therefore, the sleeve expanding device for minimally invasive treatment of thoracolumbar fracture solves the problems.

SUMMERY OF THE UTILITY MODEL

One) technical problem to be solved

The utility model aims to make up the defects of the prior art and provides an expansion sleeve device for minimally invasive treatment of thoracolumbar vertebral fracture.

II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a chest lumbar vertebrae fracture wicresoft treatment expansion sleeve ware, includes the sleeve, telescopic bottom surface fixedly connected with conical head, telescopic inside has been seted up circular sleeve inner channel, the nail hole that is the circle form is seted up to conical head's inside, the inside in nail hole is provided with the button head screw, telescopic outside cover is equipped with solid fixed ring, two symmetrical flat keyways have been seted up to telescopic surface, gu fixed ring's surface has seted up two symmetrical screw holes, every the inside of screw hole all is provided with set screw, and set screw and screw hole threaded connection, gu fixed ring's surface fixed connection has two symmetrical tubular handle, the wind hole that the equidistance was arranged is seted up to tubular handle's surface.

Furthermore, the diameter value of the nail hole is equal to that of the head of the round-head screw.

Furthermore, two the mutual side that is close to of flat keyway all seted up anti-skidding line.

Furthermore, two the equal fixedly connected with slipmat of one end that set screw is close to each other, and the material of slipmat is rubber.

Furthermore, the round head screw is made of stainless steel.

Thirdly), the beneficial effects are as follows:

compared with the prior art, the sleeve expanding device for minimally invasive treatment of thoracolumbar fracture has the following beneficial effects:

the utility model discloses a user holds the tubulose handle and makes solid fixed ring cover in telescopic outside, twist the both ends that move set screw and make two set screw respectively and push up fixed ring on two flat keyways and fix, realize that fast assembly guarantees that the operation is gone on fast, the operation speed is accelerated, insert the cone on the skin and indulge the shape incision, blunt nature expansion beside the vertebra muscle step by step in proper order by thin to thick under the effect of cone, put into the inside that the button head screw made its thread end fall into the nail hole from the passageway department in the circle sleeve, make the button head screw remain vertical state throughout under the effect in nail hole, drive the button head screw and need the contact of fixed part, improve the degree of accuracy that the button head screw was put into, it is little with the operation time to have reduced the wound face, improve operation method and treatment.

Two, the utility model discloses a be provided with anti-skidding line, increase frictional force has improved stability, and through being provided with the slipmat, soft slipmat can be absorbed in the inside of anti-skidding line, has improved stability, avoids appearing sliding when using, through being provided with the wind hole, makes the inside air of tubulose handle can circulate, makes the palm of the hand position of staff holding the tubulose handle avoid its palm of the hand position to perspire with air contact.

Drawings

FIG. 1 is a perspective view of the sleeve of the present invention;

FIG. 2 is a front view of the fixing ring of the present invention;

fig. 3 is a cross-sectional view of a top view of the sleeve of the present invention.

In the figure: 1. a round head screw; 2. nailing holes; 3. a conical head; 4. a sleeve; 5. a tubular handle; 6. a wind hole; 7. a set screw; 8. a flat key groove; 9. anti-skid lines; 10. a threaded hole; 11. a fixing ring; 12. A non-slip mat; 13. a channel in the circular sleeve.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-3, the utility model provides a technical solution: the utility model provides a chest lumbar vertebrae fracture wicresoft treatment expansion sleeve ware, including sleeve 4, the bottom surface fixedly connected with conical head 3 of sleeve 4, round sleeve inner channel 13 has been seted up to sleeve 4's inside, nail hole 2 that is the circle form has been seted up to conical head 3's inside, the inside of nail hole 2 is provided with button head screw 1, sleeve 4's outside cover is equipped with solid fixed ring 11, two symmetrical flat keyway 8 have been seted up to sleeve 4's surface, gu fixed ring 11's surface sets up two symmetrical screw holes 10, the inside of every screw hole 10 all is provided with set screw 7, and set screw 7 and screw hole 10 threaded connection, gu fixed ring 11's surface fixed connection has two symmetrical tubulose handles 5, the wind hole 6 that the equidistance was arranged is seted up to tubulose handle 5's surface.

Further, the diameter value of the nail hole 2 is equal to that of the head of the round head screw 1. The nail cap of the round head screw 1 is always kept in a vertical state inside the round head screw, and the placing accuracy of the round head screw 1 is improved.

Furthermore, anti-skid grains 9 are arranged on one side surface of each of the two flat key grooves 8, which are close to each other. The friction force is increased, and the stability is improved.

Furthermore, the two positioning screws 7 are fixedly connected with anti-slip pads 12 at the ends close to each other, and the anti-slip pads 12 are made of rubber. The soft anti-skid pad 12 can sink into the anti-skid lines 9, so that the stability is improved, and the positioning screws 7 are prevented from sliding when in use.

Further, the round head screw 1 is made of stainless steel. Long service life and convenient sterilization.

The working principle is as follows: when the fixing device is used, the tubular handle 5 is firstly held to enable the fixing ring 11 to be sleeved outside the sleeve 4, then the positioning screws 7 are screwed to enable two ends of the two positioning screws 7 to be respectively propped against the two flat key grooves 8 to fix the fixing ring 11, the quick assembly is realized, the operation is ensured to be carried out quickly, the operation speed is accelerated, the conical head 3 is inserted into a longitudinal incision on the skin, the paraspinal muscles are gradually and dully expanded from thin to thick under the action of the conical head 3, the round head screw 1 is placed into the inner channel 13 of the circular sleeve to enable the threaded end of the round head screw 1 to fall into the nail hole 2, the round head screw 1 is enabled to be always kept in a vertical state under the action of the nail hole 2, the round head screw 1 is driven to be in contact with a part needing to be fixed, the placing accuracy of the round head screw 1 is improved, the wound surface.

It should be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "fixedly," "mounted," "connected," and "connected" are to be construed broadly, e.g., "mounted" may be fixedly connected, or detachably connected, or integrally connected; "connected" may be mechanically or electrically connected; "connected" may be directly connected or indirectly connected through an intermediate member, or may be internal or external to two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a chest lumbar vertebrae fracture wicresoft treatment expansion sleeve ware, includes sleeve (4), its characterized in that: the bottom surface of the sleeve (4) is fixedly connected with a conical head (3), a circular sleeve inner channel (13) is arranged inside the sleeve (4), a round nail hole (2) is arranged inside the conical head (3), a round head screw (1) is arranged inside the nail hole (2), a fixing ring (11) is sleeved outside the sleeve (4), two symmetrical flat key grooves (8) are formed in the outer surface of the sleeve (4), the outer surface of the fixing ring (11) is provided with two symmetrical threaded holes (10), a positioning screw (7) is arranged in each threaded hole (10), and the positioning screw (7) is in threaded connection with the threaded hole (10), the outer surface of the fixing ring (11) is fixedly connected with two symmetrical tubular handles (5), the outer surface of the tubular handle (5) is provided with wind holes (6) which are arranged at equal intervals.

2. The dilating sleeve device for minimally invasive treatment of thoracolumbar vertebral fracture according to claim 1, wherein: the diameter value of the nail hole (2) is equal to that of the head of the round-head screw (1).

3. The dilating sleeve device for minimally invasive treatment of thoracolumbar vertebral fracture according to claim 1, wherein: and anti-skid grains (9) are arranged on one side surface of each of the two flat key grooves (8) which are close to each other.

4. The dilating sleeve device for minimally invasive treatment of thoracolumbar vertebral fracture according to claim 1, wherein: two the equal fixedly connected with slipmat (12) of one end that set screw (7) are close to each other, and the material of slipmat (12) is rubber.

5. The dilating sleeve device for minimally invasive treatment of thoracolumbar vertebral fracture according to claim 1, wherein: the round head screw (1) is made of stainless steel.