CN217186376U - Percutaneous minimally invasive dynamic internal fixation rod for spine - Google Patents

Abstract

The utility model discloses a spine percutaneous minimally invasive dynamic internal fixation rod, in particular to the medical field, which comprises a sleeve body, the utility model is provided with a soft rod, a limiting groove and a limiting post, which is beneficial for workers to use the soft rod to carry out slight curvature of a regulating device, is convenient to match the curvature of the spine of a patient, is beneficial to stably clamping the spine, simultaneously uses the limiting post to be clamped and connected with a corresponding limiting groove, further leads the curvature of the soft rod to carry out limiting and fixing, is convenient to carry out tight limiting on the spine, an installation groove, a connecting post, a clamping groove and a circular plate are beneficial to the workers to use the clamping post to be clamped and connected with the inner wall of a corresponding clamping groove, simultaneously leads the connecting post to be clamped and connected with the corresponding groove, thereby being convenient for the workers to take down the circular plate, lengthens the length of the soft rod, is beneficial to lengthen, limit and fix the soft rod according to spines with different lengths, the working efficiency of the working personnel is effectively improved.

Description

Percutaneous minimally invasive dynamic internal fixation rod for spine

Technical Field

The utility model relates to the technical field of medical treatment, more specifically say, the utility model relates to a backbone percutaneous wicresoft developments internal fixation stick.

Background

A spine percutaneous minimally invasive dynamic internal fixation rod is a dynamic internal fixation rod device which is arranged on the spine for fixation during the percutaneous minimally invasive surgery of the spine.

At present, there are a lot of backbone percutaneous wicresoft developments internal fixation stick on the market, but general backbone percutaneous wicresoft developments internal fixation stick uses the rod iron direct mount to carry out spacing fixed in one side of backbone usually for meet crooked position staff and need continue to connect the fixed stick of equidirectional not to install, and can't effectually control length, thereby greatly influenced the spacing effect of internal fixation stick to the backbone, should not install the use.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above defects of the prior art, the embodiment of the present invention provides a spine percutaneous minimally invasive dynamic internal fixation rod, and the technical problems to be solved by the present invention are: a common percutaneous minimally invasive dynamic internal fixation rod for the spine is usually limited and fixed by directly installing a steel rod on one side of the spine, and the length cannot be effectively controlled, so that workers at curved parts need to continuously connect fixation rods in different directions for installation.

In order to achieve the above object, the utility model provides a following technical scheme: a spine percutaneous minimally invasive dynamic internal fixation rod comprises a sleeve body, wherein two clamping columns are fixedly connected to two ends of the sleeve body, two circular plates are movably connected to two ends of the sleeve body, two clamping grooves are formed in one ends of the two circular plates, the inner walls of the four clamping grooves are connected with the outer walls of the corresponding clamping columns in a clamping mode, a connecting column is fixedly connected to the middle of one end of each of the two circular plates, a limiting mechanism is sleeved and connected inside the sleeve body and comprises a soft rod, two grooves, two limiting grooves and two limiting columns, the outer ring wall of the soft rod is connected with the inner ring wall of the corresponding sleeve body in a sleeving mode, grooves are formed in two ends of the soft rod, the inner walls of the two grooves are connected with the outer wall of the corresponding connecting column in a sleeving mode, two limiting grooves are formed in the outer wall of the soft rod, the two limiting columns are movably connected to the outer wall of the soft rod, and the outer walls of the two limiting columns are connected with the inner walls of the corresponding limiting grooves in a clamping mode, two the outer wall of spacing post all establishes with the inner wall cover that corresponds the cover body and is connected.

In a preferred embodiment, the outer diameter dimension of the outer ring walls of the two clamping columns is matched with the inner diameter dimension of the inner ring wall of the corresponding clamping groove, and the length dimension of the outer ring walls of the two clamping columns is matched with the depth dimension of the inner ring wall of the corresponding clamping groove.

In a preferred embodiment, the outer walls of the two circular plates are movably connected with a fixing mechanism, the fixing mechanism includes four fixing blocks, four circular holes and four screws, one side of each fixing block is movably connected with the outer wall of the corresponding circular plate, the top ends of the four fixing blocks are respectively provided with a circular hole, the top ends of the four fixing blocks are respectively in threaded connection with a screw, and the outer annular walls of the four screws are respectively in threaded connection with the inner annular walls of the corresponding circular holes.

In a preferred embodiment, the outer diameter of the outer annular walls of the two connecting columns is matched with the inner diameter of the inner annular wall of the corresponding groove, and the length of the outer annular walls of the two connecting columns is matched with the depth of the inner annular wall of the corresponding groove.

In a preferred embodiment, the outer wall of the soft rod is sleeved and connected with a buffer sleeve, the inner diameter size of the inner annular wall of the buffer sleeve is matched with the outer diameter size of the outer annular wall of the corresponding soft rod, and the outer diameter size of the outer annular wall of the buffer sleeve is matched with the inner diameter size of the inner annular wall of the corresponding sleeve body.

In a preferred embodiment, the inner diameter of each of the two inner ring walls of the retaining groove is matched with the outer diameter of the corresponding outer ring wall of the retaining post, and the length of each of the two inner ring walls of the retaining groove is matched with the length of the corresponding outer ring wall of the retaining post.

In a preferred embodiment, the outer walls of the four fixing blocks are all sleeved with protecting sleeves, and the size of the area of one side of the inner wall of each protecting sleeve is matched with the size of the area of one side of the outer wall of the corresponding fixing block.

In a preferred embodiment, the height dimension of each of the four screw outer ring walls is greater than the depth dimension of the corresponding circular hole inner ring wall, and the outer diameter dimension of each of the four screw outer ring walls is matched with the inner diameter dimension of the corresponding circular hole inner ring wall.

The utility model discloses a technological effect and advantage:

the utility model is provided with the soft rod, the limiting groove and the limiting post, which is beneficial for the staff to use the soft rod to slightly adjust the curvature of the device, is convenient for matching the curvature of the spine of the patient, is beneficial for stably clamping the patient, meanwhile, the limiting columns are clamped and connected with the corresponding limiting grooves, so that the flexibility of the soft rod is further limited and fixed, the spine is conveniently and tightly limited, the mounting grooves, the connecting columns, the clamping grooves and the circular plates are favorable for clamping and connecting the clamping columns with the inner walls of the corresponding clamping grooves by workers, meanwhile, the connecting column is clamped and connected with the corresponding groove, so that the circular plate can be conveniently taken down by workers, the length of the soft rod is lengthened, so that the soft rod can be lengthened and limited and fixed according to spines of different lengths, the working efficiency of workers is effectively improved, and the practicability of the device is improved.

Drawings

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

FIG. 2 is a schematic view of the structure of the slot of the present invention;

FIG. 3 is a schematic view of the structure of the limiting mechanism of the present invention;

fig. 4 is a schematic structural diagram of the fixing mechanism of the present invention.

The reference signs are: 1. a sleeve body; 11. clamping the column; 12. a circular plate; 13. a card slot; 14. connecting columns; 2. a limiting mechanism; 21. a soft rod; 22. a groove; 23. a limiting groove; 24. a limiting column; 3. a fixing mechanism; 31. a fixed block; 32. a circular hole; 33. a screw.

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.

According to the drawings 1-4, the utility model provides a spine percutaneous minimally invasive dynamic internal fixation rod, which comprises a sleeve body 1, two clamping columns 11 are fixedly connected at both ends of the sleeve body 1, two circular plates 12 are movably connected at both ends of the sleeve body 1, two clamping grooves 13 are respectively arranged at one end of each of the two circular plates 12, the inner walls of the four clamping grooves 13 are respectively connected with the outer wall of the corresponding clamping column 11 in a clamping manner, a connecting column 14 is fixedly connected at the middle part of one end of each of the two circular plates 12, a limiting mechanism 2 is sleeved and connected inside the sleeve body 1, the limiting mechanism 2 comprises a soft rod 21, two grooves 22, two limiting grooves 23 and two limiting columns 24, the outer ring wall of the soft rod 21 is sleeved and connected with the inner ring wall of the corresponding sleeve body 1, the grooves 22 are respectively arranged at both ends of the soft rod 21, so as to rapidly install and fix the circular plates 12, and simultaneously facilitate the extension of the length of the soft rod 21, thus facilitating the normal use of the device, the inner walls of the two grooves 22 are connected with the outer wall sleeves corresponding to the connecting columns 14, the outer wall of the soft rod 21 is provided with two limiting grooves 23, the outer wall of the soft rod 21 is movably connected with two limiting columns 24, the outer walls of the two limiting columns 24 are connected with the inner wall corresponding to the limiting grooves 23 in a clamped mode, and the outer walls of the two limiting columns 24 are connected with the inner wall sleeves corresponding to the sleeve bodies 1 in a sleeved mode.

Preferably, the outer diameter of the outer annular walls of the two clamping columns 11 is matched with the inner diameter of the inner annular wall of the corresponding clamping groove 13, the length of the outer annular walls of the two clamping columns 11 is matched with the depth of the inner annular wall of the corresponding clamping groove 13, the outer wall of the two circular plates 12 is movably connected with a fixing mechanism 3, the fixing mechanism 3 comprises four fixing blocks 31, four circular holes 32 and four screws 33, one side of each fixing block 31 is movably connected with the outer wall of the corresponding circular plate 12, the top ends of the four fixing blocks 31 are respectively provided with the circular holes 32, the top ends of the four fixing blocks 31 are respectively in threaded connection with the screws 33, the outer annular walls of the four screws 33 are respectively in threaded connection with the inner annular wall of the corresponding circular holes 32, the outer diameter of the outer annular walls of the two connecting columns 14 is matched with the inner diameter of the inner annular wall of the corresponding groove 22, the length of the outer annular walls of the two connecting columns 14 is matched with the depth of the inner annular wall of the corresponding groove 22, the mounting and fixing mechanism 3 is beneficial to fixing the device with the spine of a patient and mounting the device.

Preferably, the outer wall of the soft rod 21 is sleeved with and connected with a buffer sleeve, the inner diameter of the inner ring wall of the buffer sleeve is matched with the outer diameter of the outer ring wall of the corresponding soft rod 21, the outer diameter of the outer ring wall of the buffer sleeve is matched with the inner diameter of the inner ring wall of the corresponding sleeve body 1, the inner diameters of the inner ring walls of the two limit grooves 23 are matched with the outer diameter of the outer ring wall of the corresponding limit column 24, the lengths of the inner ring walls of the two limit grooves 23 are matched with the length of the outer ring wall of the corresponding limit column 24, the outer walls of the four fixed blocks 31 are sleeved with and connected with protective sleeves, the areas of the inner walls of the four protective sleeves are matched with the areas of the outer wall of the corresponding fixed blocks 31, the heights of the outer ring walls of the four screws 33 are larger than the depths of the inner ring walls of the corresponding round holes 32, and the outer diameters of the outer ring walls of the four screws 33 are matched with the inner ring walls of the corresponding round holes 32 Put, the installation lag is favorable to improving the device to the protecting effect of fixed block 31, avoids fixed block 31 to receive external influence to cause the damage to influence the fixed of screw rod 33 and spacing.

The utility model discloses theory of operation: use soft stick 21 to carry out slight adjusting device's crookedness, be convenient for match patient's backbone crookedness, do benefit to and carry out stable joint to it, use spacing post 24 and corresponding spacing groove 23 to carry out the joint simultaneously and be connected, further make soft stick 21's crookedness carry out spacing fixed, be convenient for carry out inseparable spacing to the backbone, use card post 11 and the inner wall that corresponds draw-in groove 13 to carry out the joint and be connected, make spliced pole 14 carry out the joint with corresponding recess 22 simultaneously and be connected, thereby be convenient for the staff to take off plectane 12, length to soft stick 21 extends, be favorable to lengthening the backbone according to different length to extend spacing fixed to soft stick 21, staff's work efficiency has been improved effectively, the practicality of device has been improved simultaneously.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a dynamic internal fixation stick of percutaneous wicresoft of backbone, includes cover body (1), its characterized in that: the two clamping columns (11) are fixedly connected to the two ends of the sleeve body (1), the two circular plates (12) are movably connected to the two ends of the sleeve body (1), two clamping grooves (13) are formed in one ends of the two circular plates (12), the inner walls of the four clamping grooves (13) are connected with the outer walls of the corresponding clamping columns (11) in a clamping mode, connecting columns (14) are fixedly connected to the middle portions of one ends of the two circular plates (12), a limiting mechanism (2) is sleeved inside the sleeve body (1), the limiting mechanism (2) comprises a soft rod (21), two grooves (22), two limiting grooves (23) and two limiting columns (24), the outer ring wall of the soft rod (21) is connected with the inner ring wall of the corresponding sleeve body (1) in a sleeved mode, the grooves (22) are formed in the two ends of the soft rod (21), the inner walls of the two grooves (22) are connected with the outer wall of the corresponding connecting columns (14) in a sleeved mode, two spacing grooves (23) have been seted up to the outer wall of soft stick (21), the outer wall swing joint of soft stick (21) has two spacing post (24), two the outer wall of spacing post (24) all is connected with the inner wall joint that corresponds spacing groove (23), two the outer wall of spacing post (24) all establishes with the inner wall cover that corresponds set body (1) and is connected.

2. The percutaneous minimally invasive dynamic internal fixation rod for spinal column according to claim 1, wherein: the outer diameter of the outer ring wall of each of the two clamping columns (11) is matched with the inner diameter of the inner ring wall of the corresponding clamping groove (13), and the length of the outer ring wall of each of the two clamping columns (11) is matched with the depth of the inner ring wall of the corresponding clamping groove (13).

3. The percutaneous minimally invasive dynamic internal fixation rod for spinal column according to claim 1, wherein: the outer wall swing joint of two plectane (12) has fixed establishment (3), fixed establishment (3) include four fixed block (31), four round hole (32), four screw rod (33), four one side of fixed block (31) all with the outer wall swing joint who corresponds plectane (12), four round hole (32) have all been seted up on the top of fixed block (31), four the equal threaded connection in top of fixed block (31) has screw rod (33), four the outer rampart of screw rod (33) all with the inner ring wall threaded connection who corresponds round hole (32).

4. The percutaneous minimally invasive dynamic internal fixation rod for spinal column according to claim 1, wherein: the outer diameter of the outer ring walls of the two connecting columns (14) is matched with the inner diameter of the inner ring wall of the corresponding groove (22), and the length of the outer ring walls of the two connecting columns (14) is matched with the depth of the inner ring wall of the corresponding groove (22).

5. The percutaneous minimally invasive dynamic internal fixation rod for spine according to claim 1, wherein: the outer wall of the soft rod (21) is sleeved with a buffer sleeve, the inner diameter of the inner ring wall of the buffer sleeve is matched with the outer diameter of the outer ring wall of the corresponding soft rod (21), and the outer diameter of the outer ring wall of the buffer sleeve is matched with the inner diameter of the inner ring wall of the corresponding sleeve body (1).

6. The percutaneous minimally invasive dynamic internal fixation rod for spine according to claim 1, wherein: the inner diameter of the inner ring walls of the two limiting grooves (23) is matched with the outer diameter of the outer ring wall of the corresponding limiting column (24), and the length of the inner ring walls of the two limiting grooves (23) is matched with the length of the outer ring wall of the corresponding limiting column (24).

7. The percutaneous minimally invasive dynamic internal fixation rod for spinal column of claim 3, wherein: four the outer wall of fixed block (31) all overlaps to be established and is connected with the lag, four the area size of lag inner wall one side all matches the setting with the area size that corresponds fixed block (31) outer wall one side.

8. The percutaneous minimally invasive dynamic internal fixation rod for spinal column of claim 3, wherein: the height dimension of the outer annular walls of the four screws (33) is larger than the depth dimension of the inner annular wall of the corresponding circular hole (32), and the outer diameter dimension of the outer annular walls of the four screws (33) is matched with the inner diameter dimension of the inner annular wall of the corresponding circular hole (32).

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