CN109998658B - Dynamic stabilization system acting between vertebral plates and between spinous processes - Google Patents

Abstract

A dynamic stabilization system acting on the interlamina and between the spinous processes, which comprises a combined interlaminar support structure and a spinous process support structure arranged in the upper and lower middle of the rear end of the interlamina support structure and matched with the corresponding spinous process The interlaminar support structure matches the shape of the lamina, and the nerve structure will not be squeezed in it; the spinous process support structure is provided with a groove that matches the shape of the spinous process, so that the spinous process support structure is sleeved on the outside of the spinous process. The interlaminar support structure and the spinous process support structure are combined and connected; specifically, it is realized by means of spherical grooves and spherical structures or the way of arranging longitudinal sliding grooves and protruding parts; in addition, a longitudinal elastic structure is arranged between the upper and lower spinous process support structures, and the elastic The structure is combined or integrally connected with the spinous process support structure, so as to better realize the dynamic distraction effect between the lamina. The above setting method can well realize the dynamic fixation between the lamina, the structure is reasonable, and the setting is simple and convenient.

Description

A dynamic stabilization system acting on the interlamina and between the spinous processes

technical field

The invention belongs to the technical field of fixation devices for restoring and maintaining the distance between lumbar vertebrae, in particular to a device for dynamically expanding the distance between laminas of lumbar diseased segments and maintaining the physiological dynamic activity function of spinal motion segments, in particular to a A dynamic stabilization system acting on the interlamina and between the spinous processes.

Background technique

The current surgical and internal fixation treatment options for degenerative diseases of the lumbar spine include traditional pedicle screw internal fixation and fusion, non-fusion interspinous elastic distraction fixation, etc. Although spinal fusion is the gold standard for lumbar spine surgery, its high incidence of adjacent segment degeneration and complications have attracted widespread attention. The interspinous process spreader is also not perfect, and problems such as high risk of spinous process fracture, the fixation center far from the physiological rotation center of the lumbar spine, and implant loosening have also appeared one after another.

In addition, people are often sedentary in their work, which leads to a younger trend of degenerative diseases of the lumbar spine. Traditional pedicle screw fixation and fusion results in limited mobility of patients and affects the lives of young patients. Therefore, non-fusion treatment methods are mostly used for patients with relatively mild symptoms or younger patients. During the operation, small incisions can be used to peel off the tissue in a small area to achieve minimally invasive, stable and support of the spine, and to increase the area of the spinal canal and nerve root foramen. , so as to treat lumbar degenerative diseases, relieve pain and improve the quality of life of patients.

The interspinous process spreader includes static system X-STOP, Wallis Extensure and dynamic system Coflex, DIAM, etc. At this stage, it is used in the treatment of mild to moderate lumbar disc herniation, mild to moderate lumbar spinal stenosis, non-traumatic instability, small The curative effect of joint syndrome and other diseases has been widely used. However, the interspinous process spacer still has certain defects in clinical practice, such as the placement of the segment is limited by the size of the spinous process, the difficulty of placement of the L5-S1 segment, the high risk of spinous process fracture, the loosening of the spacer, and postoperative pain symptoms. Wait again.

Therefore, there is a need for a dynamic distraction device that can effectively provide the stability of lumbar diseased segments while preserving the intervertebral disc and the mobility of the lumbar spine without causing too much pressure on the spinous process. If the distraction device can be partially arranged between the lamina, and the rear end is connected with an elastically compressible interspinous process distraction structure, the spine can be more effectively stabilized and supported, the area of the spinal canal and the nerve root hole can be increased, and the It is closer to the normal center of rotation of the lumbar spine without putting too much pressure on the spinous process and causing a series of problems.

Aiming at the problems in the prior art that the dynamic stabilizer between the spinous processes easily causes restricted movement of the diseased segment, fracture of the spinous process and loosening of the distractor, the invention provides a dynamic stabilization system acting on the interlamina and between the spinous processes.

SUMMARY OF THE INVENTION

In order to overcome the problems in the prior art that the interspinous process dynamic stabilizer is likely to cause limited movement of the diseased segment, spinous process fracture and loosening of the distractor, the present invention provides a dynamic stabilization system acting on the interlamina and between the spinous processes .

A dynamic stabilization system acting on the interlamina and between the spinous processes comprises an interlaminar support structure, and the upper and lower middles of the rear end of the interlamina support structure are respectively provided with spinous process support structures that match the corresponding spinous processes; The shape of the interspinous support structure matches the shape of the lamina, so that the dural sac and nerve structure will not be squeezed in it; .

Further, the upper and both sides of the rear side of the inter-laminar support structure are provided with anti-entering and excessively extending wings that conform to the shape of the outer side of the upper lamina.

Further, the shape of the support structure between the lamina is a fan-like structure; the above structure has a high degree of conformity with the shape of the lamina.

Further, the longitudinal height range of the inter-laminar support structure is set to be 4-16 mm, so as to meet the requirements of different patients and different inter-lamina distances.

Further, the longitudinal heights of the interlaminar support structure are set to be 4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm and 16 mm.

Further, an anti-adhesion coating is arranged on the inner side of the interlaminar support structure to prevent the interlaminar support structure from adhering to the internal ligamentum flavum and other tissues.

Further, the main structure of the interlaminar support structure is a medical titanium alloy material.

Further, the spinous process support structure is an elastic spinous process support structure, and the distance and elasticity change between the upper and lower spinous process support structures meet the requirements of distance and strength changes during human physiological changes.

Further, the spinous process support structure is integrally connected with the interlaminar support structure, and the spinous process support structure is made of elastic memory titanium alloy material.

Or, the spinous process support structure and the interlaminar spacer structure are arranged in combination; a longitudinal elastic structure is arranged between the upper and lower spinous process support structures;

Further, the interlaminar spacer structure is provided with a cross bar for the spinous process support structure to rotate, and the rear end of the spinous process support structure extends a rotating structure and is arranged on the cross bar to realize the spinous process support structure and the interlaminar spacer structure. Connection.

Alternatively, a spherical groove is provided in the interlaminar spacer structure, and an outlet is provided on the spherical groove; a spherical structure connected to the spinous process support structure is provided in the spherical groove, and the spherical structure is connected to the spinous process support structure through the outlet. Further, the part of the spinous process support structure connected with the spherical structure is an arc-shaped connecting short plate, and this arrangement can ensure that when the human body moves, the spinous process support structure moves with the spinous process.

Alternatively, a longitudinal chute is provided on the inter-laminar spacer structure, the longitudinal chute does not penetrate the inter-laminar spacer structure, and a protruding portion of the chute shape consistent with the spinous process support structure is arranged in the chute.

Further, the longitudinal chute is a structure with a wide bottom and a narrow opening, which can effectively prevent the protruding part from coming out of the longitudinal chute.

Further, the longitudinal elastic structure is an elastic longitudinal elastic sheet; or, the longitudinal elastic structure is an elastic longitudinal spring structure.

Further, the elastic sheets or spring structures are arranged in parallel on the bottom side of the groove portion, specifically, 3-6 elastic sheets or spring structures are arranged in a row.

Further, the two sides of the groove of the spinous process support structure are set as transverse wings, the edges of the transverse wings are set as rounded structures, and a plurality of longitudinal elastic structures are arranged between the upper and lower transverse wings. tissue damage.

Further, the bottom surfaces of the transverse wings of the upper and lower spinous process support structures are parallel plane structures;

Further, a plurality of elastic sheets or spring structures are arranged on the plane structure of the transverse wings.

Further, a row of 3-6 elastic sheets or spring structures is arranged on the plane structure of the upper and lower transverse wings.

Further, the spring structure is arranged on the plane structure of the transverse wing, and is arranged on the plane of the transverse wing through combination placement. This arrangement can be placed in the interlaminar support structure and the back spinous process support during the operation, because There is no elasticity, the support distance of the spinous process is smaller, and the insertion is easier. After the insertion, the compressed spring can be placed in an appropriate position.

Further, corresponding shallow grooves are provided on the plane structures of the upper and lower transverse wings, and small protrusions that can be inserted into the shallow grooves and correspond to the shape of the shallow grooves are provided on both ends of the spring structure. This arrangement can effectively achieve the structural stability after the spring is inserted.

Further, the groove is surrounded by an anastomotic plate protruding from the middle of the transverse wing, and a locking protrusion is arranged inside the groove; further, a locking protrusion is arranged in the groove on the upper and lower sides and on both sides of the groove. This arrangement can ensure the effective fixation of the spinous process support structure on the spinous process and effectively reduce the use of binding tapes. In use, after the setting of each structure is completed, the anastomotic plate is clamped by the locking forceps, so that the locking protruding nail is inserted into the spinous process to achieve the purpose of locking.

Alternatively, the groove is surrounded by an anastomotic plate protruding from the middle of the transverse wings, a plurality of screw holes are arranged on the anastomotic plate, and the locking screw locks the anastomotic plate on the spinous process. Further, screw holes are provided on both sides of the upper and lower anastomotic plates to ensure that appropriate positions are selected for screw placement according to the needs of the operation. Further, two screw holes are provided on both sides of the upper and lower anastomotic plates.

Further, the dynamic stabilization system acting on the interlamina and between the spinous processes is a 3D printed device;

Further, the dynamic stabilization system acting on the interlamina and between the spinous processes is a dynamic stabilization system acting on the interlamina and between the spinous processes of the lumbar spine.

Compared with the vertebral body fixation device in the prior art, the technical solution of the present invention has dynamic stability, reasonable structure, simple preparation method, and can realize large-scale production and clinical application.

Description of drawings

1 is a schematic diagram of the overall structure of the integrated connection between the interlaminar support structure and the interspinous process support structure of the present invention;

Fig. 2 is the longitudinal cross-sectional structural schematic diagram of the integrated connection between the interlaminar support structure and the interspinous process support structure of the present invention;

3 is a schematic diagram of the overall structure of the present invention, the interlaminar support structure and the interspinous process support structure are combined and connected, and the elastic structure is arranged on the bottom side of the groove with a longitudinal chute and a protruding part;

4 is a schematic longitudinal cross-sectional structural diagram of the interlaminar support structure and the interspinous process support structure of the present invention combined and connected, and the elastic structure is arranged on the bottom side of the groove with a longitudinal chute and a protruding part;

5 is a schematic diagram of the overall structure of the present invention with the interlaminar support structure and the interspinous process support structure combined and connected, and the elastic structure is arranged between the planes of the transverse wings with a longitudinal chute and a protruding part;

6 is a schematic diagram of a longitudinal cross-sectional structure with a longitudinal chute and a protruding part, where the interlaminar support structure and the interspinous process support structure are combined and connected, and the elastic structure is arranged between the planes of the transverse wings;

7 is a schematic diagram of the overall structure of the spherical groove and the spherical structure in which the interlaminar support structure and the interspinous process support structure are combined and connected, and the elastic structure is arranged between the planes of the transverse wings;

8 is a longitudinal cross-sectional structural schematic diagram of a spherical groove and a spherical structure in which the interlaminar support structure and the interspinous process support structure of the present invention are combined and connected, and the elastic structure is arranged between the planes of the transverse wings;

Fig. 9 is the partial enlarged structural schematic diagram of spherical groove and spherical structure part of the present invention;

Figure 10 shows the combined connection between the interlaminar support structure and the interspinous process support structure according to the present invention, and the elastic structure is arranged between the planes of the transverse wings, the elastic structure is combined with the transverse wings, and the whole body with the longitudinal chute and the protruding part Schematic.

Figure 11 is the combined connection between the interlaminar support structure and the interspinous process support structure of the present invention, and the elastic structure is arranged between the planes of the transverse wings, the elastic structure is combined with the transverse wings, and the longitudinal groove and the protruding part are in addition. Schematic diagram of cross-sectional structure;

Figure 12 is a schematic diagram of the spring structure of the present invention combined with the transverse wing;

13 is a schematic longitudinal cross-sectional structural schematic diagram of the combined connection method of the elastic structure and the transverse wing according to the present invention, and does not include the spring structure;

Figure 14 is a partial enlarged structural schematic diagram of the lower half of the interspinous process support structure including the protruding part, the elastic structure and the transverse wing combined connection mode;

In the figure, 1, interlaminar support structure; 11, extended wing; 12, anti-adhesion coating; 2, interspinous support structure; 21, groove; 211, anastomotic plate; 22, transverse wing; 231 , spherical groove; 232, spherical structure; 233, outlet; 234, arc connecting short plate; 241, longitudinal chute; 242, protruding part; 3, spring structure; 31, shallow groove; 32, small protrusion; 41, 42. Screw holes; 43. Locking screws.

Detailed ways

Example 1 A dynamic stabilization system acting on the interlamina and between the spinous processes

A dynamic stabilization system acting on the interlamina and between the spinous processes includes an interlaminar support structure, and the upper and lower middle of the rear end of the interlamina support structure are provided with spinous process support structures that match the corresponding spinous processes; The interspinous support structure matches the shape of the lamina, and the nerve structure will not be squeezed in it; the spinous process support structure is provided with a groove that matches the shape of the spinous process, so that the spinous process support structure is sleeved on the outside of the spinous process. The upper and both sides of the rear side of the inter-laminar support structure are provided with anti-entering and excessively extending wings that conform to the shape of the outer side of the upper lamina.

The shape of the support structure between the lamina is like a fan-shaped structure; the above structure has a high degree of conformity with the shape of the lamina. The longitudinal height of the interlaminar support structure is set to be 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm and other different models.

The main structure of the inter-laminar support structure is medical titanium alloy material, and the spinous process support structure is integrally connected with the inter-lamina support structure. The spinous process support structure is an elastic spinous process support structure, and the distance and elasticity change between the upper and lower spinous process support structures meet the requirements of the distance and strength changes during the physiological changes of the human body. The spinous process support structure is integrally connected with the interlaminar support structure, and the spinous process support structure is made of memory titanium alloy material.

The groove is surrounded by anastomotic plates, and locking studs are arranged inside the groove; locking studs are arranged in the grooves on both sides of the upper and lower sides and on both sides of the inside of the groove, which can ensure the effective removal of the spinous process. The support structure is fixed on the spinous process, which effectively reduces the use of straps. In use, after the setting of each structure is completed, the anastomotic plate is clamped by the locking forceps, so that the locking protruding nail is inserted into the spinous process to achieve the purpose of locking.

The dynamic stabilization system acting on the interlamina and between the spinous processes is the dynamic stabilization system of the lumbar spine acting on the interlamina and between the spinous processes.

Example 2 A dynamic stabilization system acting on the interlamina and between the spinous processes

A dynamic stabilization system acting on the interlamina and between the spinous processes includes an interlaminar support structure, and the upper and lower middle of the rear end of the interlamina support structure are provided with spinous process support structures that match the corresponding spinous processes; The interspinous support structure matches the shape of the lamina, and the nerve structure will not be squeezed in it; the spinous process support structure is provided with a groove that matches the shape of the spinous process, so that the spinous process support structure is sleeved on the outside of the spinous process.

The upper and both sides of the rear side of the inter-laminar support structure are provided with anti-entering and excessively extending wings that conform to the shape of the outer side of the upper lamina. The shape of the support structure between the lamina is like a fan-shaped structure; the above structure has a high degree of conformity with the shape of the lamina. The longitudinal height of the interlaminar support structure is set to be 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm and other different models.

An anti-adhesion coating is arranged on the inner side of the interlaminar support structure to prevent the interlaminar support structure from adhering to the internal ligamentum flavum and other tissues.

The main structure of the inter-laminar support structure is medical titanium alloy material, the spinous process support structure and the inter-lamina distraction structure are combined to form a spherical groove in the inter-lamina distraction structure, and an outlet is arranged on the spherical groove; A spherical structure connected to the spinous process support structure, and the spherical structure is connected to the spinous process support structure through an outlet. The part of the spinous process support structure connected with the spherical structure is an arc connecting short plate, and this arrangement can ensure that when the human body moves, the spinous process support structure moves with the spinous process.

A longitudinal elastic structure is arranged between the spinous processes, specifically an elastic longitudinal elastic sheet or a longitudinal spring structure. The elastic sheets or spring structures are arranged in parallel on the bottom side of the groove portion, and 3-6 elastic sheets or spring structures are arranged in a row on the bottom side of the groove portion.

The groove is surrounded by anastomotic plates, and locking studs are arranged inside the groove; locking studs are arranged in the grooves on both sides of the upper and lower sides and on both sides of the inside of the groove, which can ensure the effective removal of the spinous process. The support structure is fixed on the spinous process, which effectively reduces the use of straps. In use, after the setting of each structure is completed, the anastomotic plate is clamped by the locking forceps, so that the locking protruding nail is inserted into the spinous process to achieve the purpose of locking.

The dynamic stabilization system acting on the interlamina and between the spinous processes is the dynamic stabilization system of the lumbar spine acting on the interlamina and between the spinous processes.

Example 3 A dynamic stabilization system acting on the interlamina and between the spinous processes

A dynamic stabilization system acting on the interlamina and between the spinous processes includes an interlaminar support structure, and the upper and lower middle of the rear end of the interlamina support structure are provided with spinous process support structures that match the corresponding spinous processes; The interspinous support structure matches the shape of the lamina, and the nerve structure will not be squeezed in it; the spinous process support structure is provided with a groove that matches the shape of the spinous process, so that the spinous process support structure is sleeved on the outside of the spinous process.

The upper and both sides of the rear side of the inter-laminar support structure are provided with anti-entering and excessively extending wings that conform to the shape of the outer side of the upper lamina. The shape of the support structure between the lamina is like a fan-shaped structure; the above structure has a high degree of conformity with the shape of the lamina. The longitudinal height of the interlaminar support structure is set to be 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm and other different models.

An anti-adhesion coating is arranged on the inner side of the interlaminar support structure to prevent the interlaminar support structure from adhering to the internal ligamentum flavum and other tissues.

The main structure of the interlaminar support structure is a medical titanium alloy material, the two sides of the groove of the spinous process support structure are set as transverse wings, the edges of the transverse wings are set as rounded structures, and multiple longitudinal rows are set between the upper and lower transverse wings. The elastic structure and the arc structure can effectively prevent damage to the tissue. The bottom surfaces of the transverse wings of the upper and lower spinous process support structures are parallel plane structures;

The spinous process support structure and the interlaminar spacer structure are combined and arranged, a spherical groove is arranged in the interlaminar spacer structure, and an outlet is arranged on the spherical groove; a spherical structure connected to the spinous process support structure is arranged in the spherical groove, and the spherical structure passes through the outlet Attached to the spinous process support structure. The part of the spinous process support structure connected with the spherical structure is an arc connecting short plate, and this arrangement can ensure that when the human body moves, the spinous process support structure moves with the spinous process.

The longitudinal elastic structure is a longitudinal elastic sheet with elasticity; or it is a longitudinal spring structure. A plurality of elastic sheets or spring structures are arranged on the plane structure of the transverse wings. 3-6 elastic sheets or spring structures are arranged in a row on the plane structure of the transverse wing.

The groove is surrounded by an anastomotic plate protruding from the middle of the transverse wing, and a locking stud is arranged inside the groove; The arrangement can ensure that the spinous process support structure is effectively fixed on the spinous process, and can effectively reduce the use of the binding band. In use, after the setting of each structure is completed, the anastomotic plate is clamped by the locking forceps, so that the locking protruding nail is inserted into the spinous process to achieve the purpose of locking. The dynamic stabilization system acting on the interlamina and between the spinous processes is the dynamic stabilization system of the lumbar spine acting on the interlamina and between the spinous processes.

Example 4 A dynamic stabilization system acting on the interlamina and between the spinous processes

A dynamic stabilization system acting on the interlamina and between the spinous processes includes an interlaminar support structure, and the upper and lower middle of the rear end of the interlamina support structure are provided with spinous process support structures that match the corresponding spinous processes; The interspinous support structure matches the shape of the lamina, and the nerve structure will not be squeezed in it; the spinous process support structure is provided with a groove that matches the shape of the spinous process, so that the spinous process support structure is sleeved on the outside of the spinous process.

The upper and both sides of the rear side of the inter-laminar support structure are provided with anti-entering and excessively extending wings that conform to the shape of the outer side of the upper lamina.

The shape of the support structure between the lamina is like a fan-shaped structure; the above structure has a high degree of conformity with the shape of the lamina. The longitudinal height of the interlaminar support structure is set to be 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm and other different models.

An anti-adhesion coating is arranged on the inner side of the interlaminar support structure to prevent the interlaminar support structure from adhering to the internal ligamentum flavum and other tissues.

The main structure of the inter-laminar support structure is that the medical titanium alloy material spinous process support structure is integrally connected with the inter-lamina support structure. The two sides of the groove of the spinous process support structure are set as transverse wings, the edges of the transverse wings are set as rounded structures, and multiple longitudinal elastic structures are arranged between the upper and lower transverse wings. harm. The bottom surfaces of the transverse wings of the upper and lower spinous process support structures are parallel plane structures;

A longitudinal chute is arranged on the interlaminar spacer structure, the longitudinal chute does not pass through the interlaminar spacer structure, and a protruding part of the chute shape consistent with the spinous process support structure is arranged in the chute. The longitudinal chute is a structure with a wide bottom and a narrow opening, which can effectively prevent the protruding part from coming out of the longitudinal chute.

The longitudinal elastic structure is an elastic longitudinal elastic sheet; or, it is a longitudinal spring structure. A plurality of elastic sheets or spring structures are arranged on the plane structure of the transverse wings. 3-6 elastic pieces or spring structures are arranged in a row on the bottom side of the groove part or the plane structure of the transverse wing.

The spring structure is arranged on the plane structure of the transverse wing, and is set on the plane of the transverse wing through combination placement. This setting can be placed in the interlaminar support structure and the rear spinous process support during the operation, because there is no elasticity. , the support distance of the spinous process is smaller, and the insertion is easier. After the insertion, the compressed spring can be placed in an appropriate position. Corresponding shallow grooves are arranged on the plane structures of the upper and lower transverse wings, and small protrusions that can be inserted into the shallow grooves and correspond to the shape of the shallow grooves are arranged at both ends of the spring structure. This arrangement can effectively achieve the structural stability after the spring is inserted.

The groove is surrounded by an anastomotic plate protruding from the middle of the transverse wing, and a locking stud is arranged inside the groove; The arrangement can ensure that the spinous process support structure is effectively fixed on the spinous process, and can effectively reduce the use of the binding band. In use, after the setting of each structure is completed, the anastomotic plate is clamped by the locking forceps, so that the locking protruding nail is inserted into the spinous process to achieve the purpose of locking. The dynamic stabilization system acting on the interlamina and between the spinous processes is the dynamic stabilization system of the lumbar spine acting on the interlamina and between the spinous processes.

Example 5 A dynamic stabilization system acting on the interlamina and between the spinous processes

A dynamic stabilization system acting on the interlamina and between the spinous processes includes an interlaminar support structure, and the upper and lower middle of the rear end of the interlamina support structure are provided with spinous process support structures that match the corresponding spinous processes; The interspinous support structure matches the shape of the lamina, and the nerve structure will not be squeezed in it; the spinous process support structure is provided with a groove that matches the shape of the spinous process, so that the spinous process support structure is sleeved on the outside of the spinous process.

The upper and both sides of the rear side of the inter-laminar support structure are provided with anti-entering and excessively extending wings that conform to the shape of the outer side of the upper lamina. The shape of the support structure between the lamina is like a fan-shaped structure; the above structure has a high degree of conformity with the shape of the lamina. The longitudinal height of the interlaminar support structure is set to be 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm and other different models.

An anti-adhesion coating is arranged on the inner side of the interlaminar support structure to prevent the interlaminar support structure from adhering to the internal ligamentum flavum and other tissues.

The main structure of the interlaminar support structure is a medical titanium alloy material, the two sides of the groove of the spinous process support structure are set as transverse wings, the edges of the transverse wings are set as rounded structures, and multiple longitudinal rows are set between the upper and lower transverse wings. The elastic structure and the arc structure can effectively prevent damage to the tissue. The bottom surfaces of the transverse wings of the upper and lower spinous process support structures are parallel plane structures;

A longitudinal chute is arranged on the interlaminar spacer structure, the longitudinal chute does not pass through the interlaminar spacer structure, and a protruding part of the chute shape consistent with the spinous process support structure is arranged in the chute. The longitudinal chute is a structure with a wide bottom and a narrow opening, which can effectively prevent the protruding part from coming out of the longitudinal chute.

The longitudinal elastic structure is an elastic longitudinal elastic sheet; or, the longitudinal elastic structure is an elastic longitudinal spring structure. A plurality of elastic sheets or spring structures are arranged on the plane structure of the transverse wings. 3-6 elastic pieces or spring structures are arranged in a row on the bottom side of the groove part or the plane structure of the transverse wing.

The spring structure is arranged on the plane structure of the transverse wing, and is set on the plane of the transverse wing through combination placement. This setting can be placed in the interlaminar support structure and the rear spinous process support during the operation, because there is no elasticity. , the support distance of the spinous process is smaller, and the insertion is easier. After the insertion, the compressed spring can be placed in an appropriate position. Corresponding shallow grooves are arranged on the plane structures of the upper and lower transverse wings, and small protrusions that can be inserted into the shallow grooves and correspond to the shape of the shallow grooves are arranged at both ends of the spring structure. This arrangement can effectively achieve the structural stability after the spring is inserted.

The groove is surrounded by an anastomotic plate protruding from the middle of the transverse wings, and several screw holes are arranged on the anastomotic plate for locking the anastomotic plate on the spinous process by locking screws during surgery. Screw holes are provided on both sides of the upper and lower anastomotic plates to ensure that appropriate positions are selected for screw placement according to the needs of surgery. Two screw holes are provided on both sides of the upper and lower anastomotic plates. The dynamic stabilization system acting on the interlamina and between the spinous processes is an individualized 3D printed device designed by preoperative CT images of the patient; interspinous and interspinous dynamic stabilization systems.

The descriptions of the above-mentioned embodiments are only for understanding the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements can also be made to the present invention, and these improvements will also fall within the protection scope of the claims of the present invention.

Claims (9)

1. a dynamic stabilization system acting on between the lamina and between the spinous processes, it comprises an inter-lamina support structure, and the upper and lower middle of the rear end of the inter-lamina support structure is each provided with a spinous process support structure that is matched with the corresponding spinous process; The interlaminar support structure is consistent with the shape of the lamina, and the nerve structure will not be squeezed in it; the spinous process support structure is provided with a groove that matches the shape of the spinous process, so that the spinous process support structure is sleeved on the outside of the spinous process; The interlaminar support structure is combined with the interlaminar spacer structure; the longitudinal elastic structure is provided between the upper and lower spinous process support structures; the upper and both sides of the back side of the interlamina support structure are provided with anti-entry and excessive extension that matches the shape of the outer side of the upper lamina. wing; the shape of the interlaminar support structure is like a fan-like structure; the inner side of the interlamina support structure is provided with an anti-adhesion coating. 2. The dynamic stabilization system acting on the interlamina and between the spinous processes according to claim 1, wherein the interlaminar spacer structure is provided with a spherical groove, and an outlet is provided on the spherical groove; A spherical structure connected to the spinous process support structure, and the spherical structure is connected to the spinous process support structure through an outlet. 3 . The dynamic stabilization system acting between lamina and spinous processes according to claim 2 , wherein the part of the spinous process supporting structure connected with the spherical structure is an arc-shaped connecting short plate. 4 . 4. The dynamic stabilization system acting on the interlamina and between the spinous processes according to claim 1 is characterized in that, a longitudinal chute is arranged on the interlaminar spacer structure, and the longitudinal chute does not penetrate the interlaminar support The opening structure is arranged in the chute on the protruding part of the chute which has the same shape and is connected with the spinous process support structure. 5 . The dynamic stabilization system acting between lamina and spinous processes according to claim 4 , wherein the longitudinal elastic structure is an elastic longitudinal elastic sheet; or the longitudinal elastic structure is an elastic longitudinal spring structure. 6 . . 6. The dynamic stabilization system acting on the interlamina and between the spinous processes according to any one of claims 1-5, wherein the two sides of the groove of the spinous process support structure are set as transverse wings, and the transverse wings The edge is set as a rounded structure, and a plurality of longitudinal elastic structures are set between the upper and lower transverse wings. 7 . The dynamic stabilization system acting between lamina and spinous processes according to claim 6 , wherein the bottom surfaces of the transverse wings of the upper and lower spinous process support structures are parallel plane structures. 8 . 8 . The dynamic stabilization system acting between lamina and spinous process according to claim 7 , wherein the spring structure is arranged on the plane structure of the transverse wing, and is arranged on the plane of the transverse wing through combination placement. 9 . . 9. The dynamic stabilization system acting on the interlamina and between the spinous processes according to any one of claims 7-8, wherein the groove is surrounded by an anastomotic plate protruding from the middle of the transverse wing, and is Locking spikes are arranged inside the groove, or the groove is surrounded by an anastomotic plate protruding from the middle of the transverse wing, and several screw holes are arranged on the anastomotic plate, and the locking screw locks the anastomotic plate on the spinous process.

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