CN112971950B

CN112971950B - Connector assembly and surgical device

Info

Publication number: CN112971950B
Application number: CN202110153423.7A
Authority: CN
Inventors: 朱悦; 高亚军; 邬春晖
Original assignee: First Hospital of China Medical University; Shandong Weigao Orthopedic Materials Co Ltd
Current assignee: First Hospital of China Medical University; Shandong Weigao Orthopedic Materials Co Ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2022-05-20
Anticipated expiration: 2041-02-04
Also published as: CN112971950A

Abstract

The invention provides a connector assembly and a surgical device. The connecting assembly comprises a first assembly and a second assembly; the first component comprises: matrix: the device comprises a radial through hole arranged along the radial direction of the device and an axial slotted hole arranged along the axial direction of the device, wherein the axial slotted hole is communicated with the radial through hole; the axial slotted hole is arranged at the second end part of the axial slotted hole, and the first end part of the base body is opposite to the second end part of the axial slotted hole; locking sleeve: the device comprises an annular main body part, wherein the main body part is of a non-closed structure and comprises a first end part and a second end part which are arranged in an opening manner, and the opening end of the main body part can be inserted into a base body along the second end part of the base body in a compressed state; a clamping groove is arranged along the inner diameter peripheral wall of the axial groove hole of the base body; the opening end of the locking sleeve is provided with a convex structure facing outwards and can be inserted into the clamping groove; the second component comprises at least one fixing ring, and radial protrusions are arranged on the inner wall of the fixing ring at intervals. The connecting piece can be used for assembling connecting rod and sleeve surgical devices and constructing the surgical devices.

Description

Connector assembly and surgical device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a connecting piece assembly and a surgical device.

Background

The surgical instrument for the orthopedic surgery needs to be assembled by using a connecting piece which is mainly used for assembling tubular parts, and the aims of stable assembly structure, easy adjustment of part positions and the like are achieved so as to facilitate the surgical operation.

Taking minimally invasive spine surgery as an example, the minimally invasive spine surgery is widely applied to spinal orthopedic surgery, and aims to reduce bleeding, reduce muscle damage, shorten hospitalization time, achieve orthopedic effect and enable patients to recover normal life more quickly when the minimally invasive spine surgery is used for treating spinal deformity.

The instrument component of the minimally invasive spine surgery comprises a plurality of sleeves and a plurality of pedicle screws. Firstly, the pedicle screw is implanted into the vertebral column, and then one end of the sleeve is connected with the pedicle screw. In operation, a plurality of sleeves are required to be adjusted in a matching mode to achieve the effect of spinal column correction. In order to ensure the effective adjustment of the spine, the other ends of the sleeves are connected, and then the sleeve close to the screw end of the pedicle is applied with a distraction or compression orthopedic force.

The sleeve needs to be assembled by means of a connection. The reasonability and the stability of the connecting structure ensure that the sleeve connecting frame is stable when orthopedic force is applied, and the connecting piece does not interfere with movement and rotation of the vertebral body, so that the problem which is urgently needed to be solved in clinical operation is solved.

Disclosure of Invention

The invention aims to provide a connector component aiming at the assembly requirement of an orthopedic surgical instrument in the prior art, and simultaneously provides a surgical device assembled by adopting the connector component.

In order to achieve the purpose, the invention adopts the following technical scheme.

In some embodiments of the present invention, a connector assembly is provided, comprising a first assembly and a second assembly;

the first component comprises:

matrix: the device comprises a radial through hole arranged along the radial direction of the device and an axial slotted hole arranged along the axial direction of the device, wherein the axial slotted hole is communicated with the radial through hole; the axial slotted hole is arranged at the second end part of the axial slotted hole, and the first end part of the base body is opposite to the second end part of the axial slotted hole;

locking sleeve: the device comprises an annular main body part, wherein the main body part is of a non-closed structure and comprises a first end part and a second end part which are arranged in an opening manner, and the opening end of the main body part can be inserted into a base body along the second end part of the base body in a compressed state;

a clamping groove is arranged along the inner diameter peripheral wall of the axial groove hole of the base body; the opening end of the locking sleeve is provided with a convex structure facing outwards and can be inserted into the clamping groove;

the second component comprises at least one fixing ring, and radial protrusions are arranged on the inner wall of the fixing ring at intervals.

In some embodiments of the present invention, the second component further comprises a fastening plug; the main body part of the fixed ring forms a closed ring, and the radial bulge is arranged on the inner wall of the closed ring; a radial threaded through hole is formed along the ring main body, and the screw plug can be mounted at the threaded through hole.

In some embodiments of the invention, the connector further comprises a locking tab insertable into the open end of the locking sleeve.

In some embodiments of the invention, the connector further comprises a support ring, the shape of the outer periphery of the support ring is matched with the shape of the annular main body part of the locking sleeve, and the support ring can be mounted on the annular inner periphery of the main body part of the locking sleeve; the inner periphery of the support ring is provided with a convex part.

In some embodiments of the invention, a circumferential groove is provided along the inner axial wall of the locking sleeve body portion, and the support ring is mounted in the circumferential groove.

In some embodiments of the present invention, the connector further comprises a pressing block assembly and a fixing member;

the pressing block assembly comprises a pressing block, the pressing block comprises an axial through hole arranged along the axial direction of the pressing block and a vacancy part which is arranged along the radial direction of the pressing block and has an arc-shaped cross section; the number of the pressing blocks is two, and the first pressing block and the second pressing block can be inserted into the substrate through the first end part of the substrate through respective axial through holes; the hollow parts of the first pressing block and the second pressing block are opposite and matched with the radial through hole of the substrate; the mounting sets up at base member first end, is located one side that second briquetting was kept away from to first briquetting.

In some embodiments of the invention, the compact assembly further comprises a third compact, the axial through hole of the third compact is inserted into the substrate through the first end of the substrate, and the second compact and the vacancy of the third compact are in opposite directions.

In some embodiments of the invention, the end surface of the second pressing block, which is matched with the third pressing block, is provided with a tooth-shaped structure, and the end surface of the third pressing block, which is matched with the second pressing block, is provided with a tooth-shaped structure, and the two tooth-shaped structures can be meshed.

In some embodiments of the present invention, there is further provided a surgical device comprising at least one set of components comprising a tube, at least two sleeves, at least two set screws, and at least two of the above-described connectors; the sleeve comprises a sleeve through groove arranged along the axial length direction of the sleeve;

a first fixing ring is arranged on the first sleeve, the protruding part of the first fixing ring is clamped in the sleeve through groove of the first sleeve, a second fixing ring is arranged on the second sleeve, and the protruding part of the second fixing ring is clamped in the sleeve through groove of the second sleeve;

the pipe fitting is inserted into the hole structures limited by the first pressing block and the second pressing block of the first connecting piece and the hole structures limited by the first pressing block and the second pressing block of the second connecting piece;

the first sleeve is inserted in the annular main body part of the locking sleeve of the first connecting piece, and the second sleeve is inserted in the annular main body part of the locking sleeve of the second connecting piece;

the first sleeve is further connected to the first set screw and the second sleeve is further connected to the second set screw.

In some embodiments of the present invention, the surgical device comprises two sets of components, and further comprises an adapter component for connecting the two sets of components;

the switching subassembly includes switching pipe fitting, two connecting pieces: defining two connecting pieces as a fifth connecting piece and a sixth connecting piece;

the adapter pipe piece is inserted in the hole structures limited by the first pressing block and the second pressing block of the fifth connecting piece and the hole structures limited by the first pressing block and the second pressing block of the sixth connecting piece; the first sleeves of the first group of assemblies are inserted into the annular main body part of the locking sleeve of the fifth connecting piece, and the first sleeves of the second group of assemblies are inserted into the annular main body part of the locking sleeve of the sixth connecting piece.

In some embodiments of the present invention, the sleeve includes a main body portion, the main body portion of the sleeve forms two through grooves arranged at intervals along an axial direction of the main body portion of the sleeve, and the support ring has two protruding portions respectively clamped in the two through grooves; the fixing ring is provided with two protruding parts which are respectively clamped in the two through grooves.

Compared with the prior art, the connecting piece and the surgical device provided by some embodiments of the invention have the technical advantages that:

(1) the assembly is flexible and the adjustment is convenient. The combination of many surgical parts is realized to the cooperation of a plurality of connecting pieces of accessible, and the surgical parts position can be adjusted in a flexible way, makes things convenient for the operation. Taking the assembly and operation of the spinal orthopedic surgical instrument as an example, the sleeve can rotate in the locking sleeve, and meanwhile, the connecting block slides along the connecting rod or the connecting rod rotates along the connecting block, so that the connecting assembly does not interfere with the movement and rotation of the vertebral body, and a good orthopedic effect is achieved.

(2) Aiming at the assembly of the spinal orthopedic operation component, the support ring protruding structure and the locking sleeve have the limiting effect on the side wall of the sleeve, so that the sleeve cannot be separated from the connecting block due to deformation caused by orthopedic force.

(3) The assembly structure is stable. After the orthopedic operation, the connecting block can be locked by rotating the fixing block, so that the connecting frame is stable, and the orthopedic effect is kept.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic structural view of a connector in an assembled state;

FIG. 2 is a schematic structural view of the connector in an exploded state;

FIG. 3 is a schematic view of the assembled state of the locking sleeve and the supporting ring;

FIG. 4 is a schematic structural view showing an assembled state of the connecting member and the sleeve;

FIG. 5 is a schematic view of the surgical assembly;

FIG. 6 is a schematic view of the surgical assembly;

FIG. 7 is a schematic view of a retaining ring;

FIG. 8 is a schematic view of the exploded structure of the retainer ring and the plug screw;

FIG. 9 is a schematic view of a surgical assembly having a retaining ring;

in the above figure:

1-base, 101-radial through hole, 102-axial slot, 103-base first end, 104-base second end, 105-step structure, 106-radial protrusion structure, 107-thread structure;

2-a locking sleeve, 201-a locking sleeve first end, 202-a locking sleeve second end, 203-a locking sleeve projecting structure, 204-a circumferential groove;

3-locking sheet 301-locking sheet protruding structure;

4-support ring, 401-projection;

5-first briquetting;

6-second briquetting, 601-dentate structure;

7-a fixing member;

8-third briquetting, 801-dentate structure;

9-sleeve, 901-first through slot, 902-second through slot;

10-skin layer;

1101-a first connecting rod, 1102-a second connecting rod;

1201-first connection, 1202-second connection, 1203-third connection, 1204-fourth connection;

13-vertebral body;

1401-a first sleeve, 1402-a second sleeve, 1403-a third sleeve, 1404-a fourth sleeve;

1501-first pedicle screw, 1502-second pedicle screw;

16-a transfer tube;

17-fixed ring, 1701-radial projection, 1702-threaded through hole;

18-plug screw.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "disposed on," "connected to," another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "upper", "lower", "bottom", and the like, as used herein, are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present invention and simplicity of description, and do not indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and are not to be considered limiting.

It should be noted that the terms "first" and "second" are used for descriptive purposes only and do not imply relative importance.

In some embodiments of the present invention, a connecting assembly for assembling a surgical instrument is provided, which is mainly used for assembling a tubular device, and particularly, a connecting assembly suitable for assembling and fixing a minimally invasive surgical sleeve.

Wherein the structure of the sleeve 9 belongs to the prior art. Reference is made to the structure disclosed in the patent CN107736925A, the structure of which can be seen in fig. 4.

The main body part of the sleeve 9 comprises a first section and a second section which are oppositely arranged, the second section of the sleeve is used for being installed with the pedicle screw 10 and is provided with an internal thread, the pedicle screw 10 is provided with an external thread, and the sleeve 9 is in threaded connection with the pedicle screw 10. The main body of the first section of the sleeve 9 forms two gaps oppositely arranged along the axial direction, and the two gaps form a first through groove 901 and a second through groove 902.

The connecting assembly comprises a first assembly and a second assembly.

The first component comprises a base body 1 and a locking sleeve 2, and the structure is shown in figures 1 to 3.

The main body of the base body 1 is columnar and comprises a radial through hole 101 arranged along the radial direction of the main body and an axial groove hole 102 arranged along the axial direction of the main body, wherein the axial groove hole 102 is a non-through hole with a certain depth along the axial direction of the base body 1, the radial through hole 101 is a through hole penetrating through the radial width of the base body, and the axial groove hole 102 is communicated with the radial through hole 101; the axial slot 102 is disposed at a second end 104 thereof, opposite the second end 104 thereof being a base first end 103.

The locking sleeve 2: the device comprises an annular main body part, wherein the main body part is of a non-closed structure and comprises a first end part 201 and a second end part 202 which are arranged in an opening manner, the first end part 201 and the second end part 202 are in clearance openings, and when the first end part 201 and the second end part 202 are compressed in opposite directions, the clearance is reduced, and the main body part is restored to the original state after being loosened; the open end of which can be inserted into the base body 1 in a compressed state along the base body second end 104.

A clamping groove (not visible in the figure) is arranged along the inner diameter peripheral wall of the axial groove hole 102 of the base body; the opening end of the locking sleeve is provided with a convex structure 203 facing the outside, the opening of the locking sleeve 2 can be inserted into the axial slotted hole 102 in a squeezed state, and the convex structure 203 can be inserted into the clamping groove in a loosening state to fix the inserting structure between the two.

In particular, the radial through hole 101 of the base body 1 can pass at least through the tubular components to be assembled; the axial slot 102 of the base body 1 enables at least the open end of the locking sleeve 2 to be inserted in a compressed state; the annular body portion of the locking sleeve 2 can pass at least through the sleeve or tubular parts to be assembled. The locking sleeve 2 and the base body 1 are in a non-fixed structure capable of rotating relatively, and the surgical instrument can be flexibly assembled by adopting a plurality of connecting pieces. The specific assembly is described in detail below.

After the locking sleeve 2 is inserted into the second end portion 202, the open end thereof is restored to the original shape, and a gap exists between the two open ends, which affects the structural stability. In some embodiments of the present invention, to solve this problem, a locking and fixing structure is further designed. The connector further comprises a locking tab 3, the thickness of the locking tab 3 being arranged such that it can be inserted into a gap formed by the open end of the locking sleeve 2. Specifically, the locking piece 3 may be an elastic piece, or may be a structure similar to the locking sleeve 2. In this embodiment, the main body of the locking plate 3 is also in a ring shape (square ring shape), and includes an opening, the opening ends on both sides also have a protruding structure 301 disposed towards the outside, and the protruding structure 301 can be inserted into the slot on the inner wall of the axial slot 102 of the base body to be fixed. After the locking sheet 3 is inserted, the locking sleeve 2 can be prevented from being compressed under the abnormal state of the opening end, the deformation of the opening of the locking sleeve 2 is prevented, the driving shaft is separated, and the assembly stability of the surgical instrument is ensured.

The assembly two includes at least one retaining ring 17, the structure of which is shown in fig. 7 and 8, with radial projections 1701 provided at intervals along the inner wall of said retaining ring 17. The second component can be used for fixing the sleeve 9 and limiting the deformation of the sleeve 9. The inner diameter of the securing ring 17 is dimensioned according to the outer diameter of the sleeve 9 to which it is fitted. The fixing ring 17 can be fitted over the sleeve 9. The radial protrusions 1701 comprise two, with a gap between them configured such that, after the sleeve 9 has been fitted with the fixing ring 17, the two radial protrusions 1701 are located in the first through groove 901 and the second through groove 902, respectively, supporting the groove gap against deformation of the sleeve 9.

One or more fixing rings 17 may be optionally provided depending on the length of the sleeve 9 and the fixing requirements. Radial projection 1701 may be sized according to the size of the sleeve channel.

Further, in order to enhance the fixing effect. The second component further comprises a fastening screw plug 18; the fixed ring body portion forms a closed ring, and the radial protrusions 1701 are arranged on the inner wall of the closed ring; a radially threaded through bore 1702 is provided along the ring body portion, and a plug screw 18 may be mounted at the threaded through bore 1702.

Specifically, a threaded through-hole 1702 is located on the body portion between two radial protrusions 1701. After the screw plug 18 is mounted in the threaded through hole 1702, the outer wall of the main body part of the sleeve 9 is pressed to fix the mounting structure. The screw plug 18 is in a round convex shape towards one side of the inner periphery of the fixing ring 17, which is beneficial to enhancing the fixing effect.

In some embodiments of the invention, the connector further comprises a support ring 4, the shape of the outer periphery of the support ring 4 is matched with the shape of the annular main body part of the locking sleeve 2, and the support ring can be mounted on the annular inner periphery of the main body part of the locking sleeve 2; the inner circumference of the support ring 4 is provided with a protrusion 401. In the embodiment, the main body part of the locking sleeve 2 is in a ring shape, the support ring 4 is also in a ring shape, and the size of the outer diameter of the support ring is matched with the size of the inner diameter of the locking sleeve 2, so that the support ring can be inserted into the locking sleeve 2 and fixed. The main part of the support ring 4 is a C-shaped ring, which is convenient to arrange in the groove of the locking sleeve 2, so that the support ring is elastically fixed in the locking sleeve under the action of C-shaped tension, and the support ring is prevented from falling off the locking sleeve. The support ring protrusions 401 serve for the fixing of the assembly parts. Similar to the second assembly, after installation, the protrusions 401 on the inner periphery of the support ring 4 are respectively located in the first through grooves 901 and the second through grooves 902, and support the groove gaps to prevent the sleeve 9 from deforming.

In some embodiments of the present invention, a circumferential groove 204 is formed along the inner axial wall of the main body of the locking sleeve 2, and the support ring 4 is installed in the circumferential groove 204, which prevents the support ring 4 from being removed from the locking sleeve 2.

In order to further enhance the fixing effect of the assembly, in some embodiments of the present invention, the connecting member further includes a pressing block assembly and a fixing member 7.

The pressing block assembly comprises a pressing block, the pressing block comprises a through hole arranged along the axial direction of the pressing block and a vacancy part which is arranged along the radial direction of the pressing block and has an arc-shaped cross section;

the number of the pressing blocks is two, the axial through hole of the first pressing block 5 is inserted into the base body 1 through the first end part 101 of the base body, and the axial through hole of the second pressing block 6 can also be inserted into the base body 1 through the first end part 101 of the base body; the first pressing block 5 and the second pressing block 6 are opposite to each other in the hollow part and matched with the radial through hole 101 of the base body. The openings of the first and

second pressure pieces

5, 6 define the pipe diameter of the pipe to be assembled that can be inserted.

In order to match and limit the installation structure of the first pressing block 5 and the second pressing block 6 on the base body 1, a reducing step structure 105 is arranged on one side of the base body 1 close to the first end part 101, and an axial through hole of the first pressing block 5 can be opened at the step structure 105; the side of the base body 1 close to the second end 102 is provided with a structure protruding radially outward therefrom, and the second pressure piece 6 can be clamped at the radially protruding structure 106.

The fixing part 7 is arranged at the first end part 101 of the base body and is positioned at one side of the first pressing block 5 far away from the second pressing block 6. The base body first end 101 has a threaded formation 107, and the fixing element 7 is in threaded engagement with the base body 1. When the fixing part 7 is rotated, axial movement is generated between the fixing part and the base body 1, so that the connecting block is locked and unlocked for the connecting rod. When the pipe fitting needs to be fixedly inserted or the pipe fitting with a smaller pipe diameter needs to be assembled, the fixing piece 7 is rotated towards the first pressing block 5, the distance between the first pressing block 5 and the second pressing block 6 is reduced, and the pipe hole defined by the first pressing block and the second pressing block is reduced; when a pipe fitting with a larger pipe diameter needs to be assembled or disassembled, the fixing piece 7 can be rotated in the direction away from the first pressing block 5.

Further, in some embodiments of the present invention, to enhance the fixing effect, the pressing block assembly further includes a third pressing block 8, an axial through hole of the third pressing block 8 is inserted into the base 1 through the first end of the base, the second pressing block 6 and the hollow portion of the third pressing block 8 are in opposite directions, and the third pressing block 8 can be clamped at the radial protrusion 106. The vacant part of the third pressing block 8 covers the peripheral wall of the locking sleeve 2, and when the third pressing block 8 moves towards the locking sleeve 2, locking acting force can be applied to the part inserted in the locking sleeve 2.

In some embodiments of the present invention, the end surface of the second pressing block 6, which is matched with the third pressing block 8, is provided with a tooth-shaped structure 601, and the end surface of the third pressing block 8, which is matched with the second pressing block 6, is provided with a tooth-shaped structure 801, and the two tooth-shaped structures can be engaged. This engagement structure prevents relative sliding between second pressing piece 6 and third pressing piece 8.

In some embodiments of the present invention, a surgical device is further provided based on the above-mentioned connector. The surgical device comprises at least one set of surgical components, which comprises a tube, at least two sleeves 9, at least two fixing screws and at least two of the above-mentioned connecting pieces.

The structure of the surgical assembly and the surgical device will be described by taking a minimally invasive surgical orthopedic device for the spine as an example. The structure refers to fig. 5 and 6, and fig. 9. In which fig. 5 and 6 show the surgical device without the securing ring 17 and fig. 9 shows the surgical device with the securing ring 17.

Each set of components has two of the above-mentioned pedicle screw 10 and sleeve 9 structures, and also includes at least one connecting rod and two connecting members.

The fixing screw is a pedicle screw 10. A brief description is provided below. During surgery, the pedicle screws 10 will be implanted into the spine for fixation.

The pedicle screw 10 has external threads. The main body part of the sleeve 9 comprises a first end and a second section which are oppositely arranged, the second section of the sleeve is used for being installed with the pedicle screw 10 and is provided with an internal thread, and the sleeve 9 is in threaded connection with the pedicle screw 10. The sleeve main body portion forms two gaps which are oppositely arranged along the axial direction thereof, and the two gaps form a first through groove 901 and a second through groove 902.

The first set of surgical assemblies is constructed as follows.

First, one fixing ring 17 is mounted on each sleeve 9, and the projecting portions 1701 of the fixing ring are caught in the first through grooves 901 and the second through grooves 902 of the sleeve 9.

The first connecting rod 1101 is inserted into the hole structures defined by the first pressing block and the second pressing block of the first connecting piece 1201, and the hole structures defined by the first pressing block and the second pressing block of the second connecting piece 1202; limiting bosses are arranged at two ends of the connecting rod 1101, so that the connecting rod is prevented from being separated from the connecting block when the sleeve is adjusted;

the first sleeve 1401 is inserted into the locking sleeve main body part of the first connecting piece 1201, and the second sleeve 1402 is inserted into the locking sleeve main body part of the second connecting piece 1202;

the first sleeve 1401 is further connected to a first pedicle screw 1501 and the second sleeve 1402 is further connected to a second pedicle screw 1502.

The support ring 4 has two protrusions 401, and when assembling, the two protrusions 401 of the support ring 4 are respectively clamped in the first through groove 901 and the second through groove 902. After the sleeve is inserted into the locking sleeve, the side wall of the sleeve is supported by the support ring 4, and under the action of the projection 401, it is ensured that it does not deform after being subjected to orthopedic forces. When the orthopedic force is applied, the connecting block at the corresponding part is unlocked, and the orthopedic force can be applied. Meanwhile, the convex part 401 is matched with the side wall of the through groove of the sleeve, when the sleeve 9 needs to rotate in the process of reshaping, acting force is applied to the sleeve 9 through the convex part 401, and the sleeve 9 is driven to rotate through the rotation of the support ring in the locking sleeve; meanwhile, when the sleeve 9 is locked by the locking sleeve 2, the sleeve 9 is prevented from being compressed and deformed, so that the fixation is firm, the diameter of the sleeve is ensured not to be deformed, and smooth operation after the sleeve is locked is ensured.

Multiple sets of surgical components may be further assembled as desired for the procedure.

In some embodiments of the present invention, the surgical device comprises two sets of components, which are assembled by an adapter component; the adapter assembly comprises an adapter tube and two connecting pieces, and is used for connecting the sleeves 9 on the adjacent side between the two groups of operation assemblies.

The second set of surgical components is identical in construction to the first set of surgical components. For ease of distinction, the related components of the second group of components are named sequentially by the name of the first group of components.

The second connecting rod 1102 is inserted into a hole structure defined by the first pressing block and the second pressing block of the third connecting piece 1203, and a hole structure defined by the first pressing block and the second pressing block of the fourth connecting piece 1204;

the third sleeve 1403 is inserted into the annular main body part of the locking sleeve of the third connecting piece 1203, and the fourth sleeve 1404 is inserted into the annular main body part of the locking sleeve of the fourth connecting piece 1404;

the third sleeve 1403 is further connected to a third pedicle screw and the fourth sleeve 1404 is further connected to a fourth pedicle screw.

The adapter tube 1601 is inserted into the hole structure defined by the first pressing block and the second pressing block of the fifth connecting member 1205, and the hole structure defined by the first pressing block and the second pressing block of the sixth connecting member 1206; the first sleeve 1201 is inserted over the locking collar body of the fifth connector 1205 and the third sleeve is inserted over the locking collar body of the sixth connector 1206.

The assembly method of the connector is as follows. Based on the substrate 1, the third pressing block 8, the second pressing block 6 and the first pressing block 5 are sleeved through the first end 101 of the substrate, so that the tooth-shaped structures of the second pressing block 6 and the third pressing block 6 are meshed. The support ring 4 is fitted into the groove of the locking sleeve 2. The locking sleeve 2 is inserted through the second section 102 of the base body and subsequently the locking tab 3.

And inserting the connecting rod into a hole structure formed by the two connecting piece pressing blocks.

Two pedicle screws 10 are spaced below the skin layer 10 at predetermined locations in the vertebral body 13. The sleeve 9 is correspondingly mounted on the pedicle screw 10. And inserting the locking sleeve of the corresponding connecting block into the corresponding sleeve, adjusting the position of the protruding structure of the alignment support ring 4 and the corresponding through groove, rotating the fixing piece 7, and locking the sleeve 9 through the first pressing block 5, the second pressing block 6 and the third pressing block 8.

When the sleeve 9 needs to be rotated during operation, the supporting ring 4 is rotated or the fixing ring 17 is rotated to drive the sleeve 9 to rotate. When orthopedic force needs to be applied, the fixing block 7 is rotated to unlock the corresponding sleeve connecting part, and the position of the sleeve 9 can be adjusted.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A connector component for minimally invasive spine surgery is characterized by comprising a first component and a second component;

the first component comprises:

the assembly II comprises at least one fixed ring, and a radial bulge is arranged along the inner wall of the fixed ring;

the connecting piece further comprises a support ring, the shape of the outer periphery of the support ring is matched with that of the annular main body part of the locking sleeve, and the support ring can be mounted on the annular inner periphery of the main body part of the locking sleeve; the inner periphery of the support ring is provided with a convex part;

a circumferential groove is formed along the inner shaft wall of the locking sleeve main body part, and the support ring is installed in the circumferential groove;

the second component further comprises a fastening plug screw; the main body part of the fixed ring forms a closed ring, and the radial bulge is arranged on the inner wall of the closed ring; a radial threaded through hole is formed along the ring main body, and the screw plug can be mounted at the threaded through hole.

2. The connector assembly of claim 1, wherein the connector further comprises a press block assembly and a fastener;

the pressing block assembly comprises a pressing block, and the pressing block comprises an axial through hole arranged along the axial direction of the pressing block and a vacancy part which is arranged along the radial direction of the pressing block and has an arc-shaped section; the number of the pressing blocks is two, and the first pressing block and the second pressing block can be inserted into the substrate through the first end part of the substrate through respective axial through holes; the hollow parts of the first pressing block and the second pressing block are opposite and matched with the radial through hole of the substrate;

the fixing piece is arranged at the first end part of the base body and is positioned on one side, far away from the second pressing block, of the first pressing block.

3. The connector assembly of claim 2, wherein the compact assembly further includes a third compact having an axial through-hole inserted into the substrate through the first end of the substrate, the second compact being opposite the void of the third compact.

4. The connector assembly of claim 2, wherein the mating side of the second segment and the third segment is provided with teeth, and the mating side of the third segment and the second segment is provided with teeth, wherein the teeth are engageable.

5. A surgical device comprising at least one set of components comprising a rod, at least two sleeves, at least two set screws, and at least two connector assemblies according to any one of claims 1 to 4; the sleeve comprises a sleeve through groove arranged along the axial length direction of the sleeve;

the pipe fitting is inserted into a hole structure limited by a first pressing block and a second pressing block of the first connecting piece and a hole structure limited by a first pressing block and a second pressing block of the second connecting piece;

the first sleeve is further connected to the first set screw, and the second sleeve is further connected to the second set screw;

the sleeve comprises a main body part, the main body part of the sleeve is provided with two through grooves which are arranged at intervals along the axial direction of the main body part of the sleeve, and the support ring is provided with two convex parts which are respectively clamped in the two through grooves; the fixing ring is provided with two protruding parts which are respectively clamped in the two through grooves.

6. The surgical device of claim 5, wherein the surgical device comprises two sets of components, and further comprising an adapter component for connecting the two sets of components;

the adapter pipe piece is inserted into the hole structures limited by the first pressing block and the second pressing block of the fifth connecting piece and the hole structures limited by the first pressing block and the second pressing block of the sixth connecting piece; the first sleeves of the first group of assemblies are inserted in the annular main body part of the locking sleeve of the fifth connecting piece, and the first sleeves of the second group of assemblies are inserted in the annular main body part of the locking sleeve of the sixth connecting piece.