CN2642266Y

CN2642266Y - Artificial frame vertebra device

Info

Publication number: CN2642266Y
Application number: CNU032082886U
Authority: CN
Inventors: 姜国祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-29
Filing date: 2003-08-29
Publication date: 2004-09-22
Anticipated expiration: 2013-08-29

Abstract

The utility model discloses an artificial framework vertebral device, consisting of a spiral vertebral 1, an opening vertebral root nail 2, an adjustable support rod 3 and a joint link 4. The utility model can well fix the spinal column of the patient with the lack and injury on the spinal column and the spinal cord can be protected in the device; thus the utility model achieves the completely novel construction structural fixation for the lacked and injured spinal column; the device can also be separated for use; for the patient only needing fixation, rectification and restoration, only by operating the opening vertebra root nail and the adjustable support rod can the utility model achieve the purpose. The artificial framework vertebral device provided by the utility model is simple in structure, convenient in use, stable, reliable, lasting and durable.

Description

Artificial frame vertebra equipment

Technical field

This utility model relates to a kind of medical use medical apparatus and instruments, relates in particular to a kind of artificial frame vertebra equipment that is used for the treatment of tumor of spine.

Background technology

After at present both at home and abroad spinal surgery all concentrates on preceding road vertebral resection to the method for treatment tumor of spine, adopt artificial vertebral body displacement or vertebral body nail fixedly to add bone grafting etc. again and be the Therapeutic Method of representative.But in fact, the vertebra tumor is invaded pedicle of vertebral arch, transverse process, vertebral plate backward toward contact when invading the vertebra precentrum, and tumor is to the inside and outside development of canalis spinalis, and the compressing spinal cord causes patient's paraplegia.Therefore only do the vertebral tumor excision of preceding road, it is not enough carrying out the artificial vertebral body displacement merely, moreover owing to tumor behind the vertebra is not thoroughly excised, often effect is bad.In recent years, the internal fixation of spine apparatus has tremendous development, and outstanding characteristics are to penetrate a plurality of radix of vertebra nails by the spinal column way of escape, and reuse steel plate or rod iron are fixed up the radix of vertebra nail, and this fixed characteristics are: three-dimensional can reach stable internal fixation.But for tumor of spine, because it fails thoroughly to excise, often therapeutic effect is bad.

Summary of the invention

The purpose of this utility model provides a kind of artificial frame vertebra equipment, and it can guarantee behind tumor tissues around excision vertebral body, pedicle of vertebral arch, transverse process, vertebral plate and the spinal cord that the stable of spinal column and protection spinal cord are not damaged.

In order to achieve the above object, the technical scheme that this utility model adopted is: artificial frame vertebra equipment is linked and is formed by spiral cone, opening vertebra radix nail, Adjustable bracing bar, joint.Described spiral cone is made up of two thread spindles and a sleeve pipe, at the two ends of thread spindle is respectively two thread segments, the thread segment that wherein is used for fixing normal vertebral body is the bone thread end, being used to screw in telescopic thread segment is the mechanical whorl end, be no threaded area between two ends of thread, the cylindrical circle that is called near bone thread end one side holds in the palm, in the circle holder, be evenly distributed with several non-threaded holes, the multi-faceted column that is near mechanical whorl end one side, the structure of two thread spindles is identical, but hand of spiral is opposite; Being uniform-distribution with screwed hole on telescopic pipe shaft, is reverse mechanical whorl from the middle to both ends on internal surface of sleeve pipe, screws in simultaneously or screws out for the mechanical whorl section of two thread spindles; Spiral cone also can be made up of a thread spindle, a sleeve end and the ring that moves about, wherein an end of sleeve end and one section bone thread section are connected as a single entity, other end opening, on pipe shaft, be uniform-distribution with screwed hole, inside pipe wall has the screw thread that is complementary with mechanical whorl, moving about to encircle is uniform-distribution with screwed hole, on the ring inwall screw thread that is complementary with mechanical whorl is arranged.Described opening vertebra radix nail can divide top and the bottom, its top is divided into opening and is " U " type structure, the bottom is divided into the tapered structure of the end of thread, arrival end in " U " type structure has two relative semicircle screw thread mouths, in its underpart is a circular space, other is furnished with a lock nut, can reach the purpose of closed " U " shape structure inlet after screwing in semicircle screw thread inlet, and opening vertebra radix nail can be divided into bone thread opening vertebra radix nail and mechanical whorl opening vertebra radix nail according to the function of the lower part end of thread.Described Adjustable bracing bar is divided into two kinds of linear type Adjustable bracing bar and angle type Adjustable bracing bars; The linear type Adjustable bracing bar is that the cross section is oblate threaded rod, the flat place of threaded rod can enter into the bottom circular space by " U " type structure inlet of opening vertebra radix nail, when revolving when turning 90 degrees, threaded rod can not be locked in " U " type structural base by " U " type structure inlet, but still have certain activity space, even number adjustable nut and corresponding packing ring are housed on threaded rod, and per two adjustable nut and packing ring become one group, can rotate freely mobile on Adjustable bracing bar; The angle type Adjustable bracing bar is oblate threaded rod by two sections cross sections and forms, a relative end is and expands the dome-type toothed surfaces in two sections, there is screwed hole the centre of hemisphere, two dome-type toothed surfaces can mesh together, by regulating the position of engagement of dome-type toothed surfaces, two sections support bar shapes are had a certain degree, be fixed with drive screw then, can obtain the Adjustable bracing bar of certain angle, this Adjustable bracing bar mainly is the approximate angle for the physiological bending that solves spinal column.Described joint links the joint that can be bent and stretched by twist-style and forms, and is divided into head end and tail end; Head end is a mechanical whorl nail, and it can be screwed in by any one the rib-loop hole on the spiral cone sleeve pipe and fix; Tail end is the pipe end of a mechanical nut, and this end is specifically designed to the nail end of mechanical whorl opening vertebra radix nail and screws in and fix.In use; after full vertebra excision; do not have the bone pillar is damage condition to the intact spinal nerves dural sac of this section on every side; the bone thread end of two thread spindles of spiral cone is screwed in the holder and the vertebral body that go up thread spindle in the hypocentrum to be nestled up; pass through revoling tube then and reach the vertebral height of needs to support the pressure of spinal column up and down; screw in bone thread opening vertebra radix nail from the back by pedicle of vertebral arch in the interior both sides of neighbouring vertebral body simultaneously; according to circumstances the bone thread opening vertebra radix nail is linked together subsequently with linear type or angle type Adjustable bracing bar; after the autotelic adjusting of adjustable nut, fix the bone thread opening vertebra radix nail with adjustable nut; after use the opening of the closed bone thread opening vertebra radix nail of lock nut again; then the banded head end in joint is screwed in a suitable screwed hole on the sleeve pipe; reuse mechanical whorl opening vertebra radix nail screws in the banded tail end in joint; and the opening of mechanical whorl opening vertebra radix nail links together with Adjustable bracing bar; and be conditioned nut and be locked on the support bar; by the lock nut closing any opening; so just form a framework and protect the spinal nerves dural sac, reach the purpose of this utility model.

Artificial frame vertebra equipment provided by the utility model is simple in structure; easy to use; its spinal column to the patient of spinal defect is fixed up well; and with spinal cord protection within this device; reach and spinal column is carried out brand-new building structure fix, stable, reliable, durable also can separately use; to only needing patient fixing, orthopedic, that reset, as long as operate and to achieve the goal with opening vertebra radix nail and Adjustable bracing bar.

Description of drawings

Fig. 1 is the side view of this utility model embodiment artificial frame vertebra equipment.

Fig. 2 is the structural representation of the spiral cone with two thread spindles of Fig. 1 embodiment artificial frame vertebra equipment.

Fig. 3 is the structural representation of the spiral cone with a thread spindle of Fig. 1 embodiment artificial frame vertebra equipment.

Fig. 4 is the structural representation of the opening vertebra radix nail of Fig. 1 embodiment artificial frame vertebra equipment.

Fig. 5 is the structural representation of the linear type Adjustable bracing bar of Fig. 1 embodiment artificial frame vertebra equipment.

Fig. 6 is the structural representation of the angle type Adjustable bracing bar of Fig. 1 embodiment artificial frame vertebra equipment.

Fig. 7 is the banded structural representation in joint of Fig. 1 embodiment artificial frame vertebra equipment.

The specific embodiment

In the structure shown in the figure, artificial frame vertebra equipment links 4 by spiral cone 1, opening vertebra radix nail 2, Adjustable bracing bar 3, joint and forms.Described spiral cone 1 is made up of two thread spindles 5 and a sleeve pipe 6, at the two ends of thread spindle 5 is respectively two thread segments, the thread segment that wherein is used for fixing normal vertebral body is the bone thread end, being used to screw in telescopic thread segment is the mechanical whorl end, be no threaded area between two ends of thread, the cylindrical circle that is called near bone thread end one side holds in the palm, in the circle holder, be evenly distributed with several non-threaded holes, the multi-faceted column that is near mechanical whorl end one side, the structure of two thread spindles is identical, but hand of spiral is opposite; Being uniform-distribution with screwed hole on the pipe shaft of sleeve pipe 6, is reverse mechanical whorl from the middle to both ends on internal surface of sleeve pipe, screws in simultaneously or screws out for the mechanical whorl section of two thread spindles; Spiral cone also can be made up of a thread spindle 5, a sleeve end 7 and the ring 8 that moves about, wherein an end of sleeve end 7 and one section bone thread section are connected as a single entity, other end opening, on pipe shaft, be uniform-distribution with screwed hole, inside pipe wall has the screw thread that is complementary with mechanical whorl, moving about to encircle on 8 is uniform-distribution with screwed hole, on the ring inwall screw thread that is complementary with mechanical whorl is arranged.Described opening vertebra radix nail 2 can divide top and the bottom, its top is divided into opening and is " U " type structure, the bottom is divided into the tapered structure of the end of thread, arrival end in " U " type structure has two relative semicircle screw thread mouths, in its underpart is a circular space, other is furnished with a lock nut, can reach the purpose of closed " U " shape structure inlet after screwing in semicircle screw thread inlet, opening vertebra radix nail 2 can be divided into bone thread opening vertebra radix nail and mechanical whorl opening vertebra radix nail according to the function of the lower part end of thread.Described Adjustable bracing bar 3 is divided into 11 two kinds of linear type Adjustable bracing bar 9 and angle type Adjustable bracing bars; Linear type Adjustable bracing bar 9 is oblate threaded rod for the cross section, the flat place of threaded rod can enter into the bottom circular space by " U " type structure inlet of opening vertebra radix nail, when revolving when turning 90 degrees, threaded rod can not be locked in " U " type structural base by " U " type structure inlet, but still have certain activity space, even number adjustable nut 10 and corresponding packing ring are housed on threaded rod, per two adjustable nut 10 and packing ring become one group, can rotate freely mobile on Adjustable bracing bar 3; Angle type Adjustable bracing bar 11 is oblate threaded rod by two sections cross sections and forms, a relative end is and expands dome-type toothed surfaces 12 in two sections, there is screwed hole the centre of hemisphere, two dome-type toothed surfaces 12 can mesh together, by regulating the position of engagement of dome-type toothed surfaces, two sections support bar shapes are had a certain degree, be fixed with drive screw then, can obtain the Adjustable bracing bar of certain angle, this Adjustable bracing bar mainly is the approximate angle for the physiological bending that solves spinal column.The binding 4 of described joint is made up of the joint that twist-style can bend and stretch, and is divided into head end 13 and tail end 14; Head end 13 is mechanical whorl nails, and it can be screwed in by any one the rib-loop hole on the spiral cone sleeve pipe 6 and fix; Tail end 14 is pipe ends of a mechanical nut, and this end is specifically designed to the nail end of mechanical whorl opening vertebra radix nail and screws in and fix.In use; after full vertebra excision; do not have the bone pillar is damage condition to the intact spinal nerves dural sac of this section on every side; the bone thread end of two thread spindles 5 of spiral cone 1 screwed in go up in the hypocentrum; the circle holder of thread spindle nestles up with vertebral body; pass through revoling tube 6 then and reach the vertebral height of needs to support the pressure of spinal column up and down; screw in bone thread opening vertebra radix nail from the back by pedicle of vertebral arch in the interior both sides of neighbouring vertebral body simultaneously; according to circumstances the bone thread opening vertebra radix nail is linked together subsequently with linear type or angle type Adjustable bracing bar; after adjustable nut 10 autotelic adjustings, fix the bone thread opening vertebra radix nail with adjustable nut 10; after use the opening of the closed bone thread opening vertebra radix nail of lock nut again; then with a suitable screwed hole on the head end 13 screw-in sleeve pipes 6 of joint binding 4; reuse mechanical whorl opening vertebra radix nail screws in the joint and links 4 tail end 14; and the opening of mechanical whorl opening vertebra radix nail links together with Adjustable bracing bar; and be conditioned nut 10 and be locked on the support bar; by the lock nut closing any opening; so just form a framework and protect the spinal nerves dural sac, reach the purpose of this utility model.

Claims

1, a kind of artificial frame vertebra equipment is characterized in that: it is linked [4] and is formed by spiral cone [1], opening vertebra radix nail [2], Adjustable bracing bar [3], joint; Described spiral cone [1] is made up of two thread spindles [5] and a sleeve pipe [6], at the two ends of thread spindle [5] is respectively two thread segments, the thread segment that wherein is used for fixing normal vertebral body is the bone thread end, being used to screw in telescopic thread segment is the mechanical whorl end, be no threaded area between two ends of thread, the cylindrical circle that is called near bone thread end one side holds in the palm, in the circle holder, be evenly distributed with several non-threaded holes, the multi-faceted column that is near mechanical whorl end one side, the structure of two thread spindles is identical, but hand of spiral is opposite, is uniform-distribution with screwed hole on the pipe shaft of sleeve pipe [6], is reverse mechanical whorl from the middle to both ends on internal surface of sleeve pipe; Described opening vertebra radix nail [2] divides top and the bottom, its top is divided into opening and is " U " type structure, the bottom is divided into the tapered structure of the end of thread, arrival end in " U " type structure has two relative semicircle screw thread mouths, in its underpart is a circular space, other is furnished with a lock nut, and opening vertebra radix nail [2] can be divided into bone thread opening vertebra radix nail and mechanical whorl opening vertebra radix nail according to the function of the lower part end of thread; Described Adjustable bracing bar [3] is divided into [11] two kinds of linear type Adjustable bracing bar [9] and angle type Adjustable bracing bars, the linear type Adjustable bracing bar is that the cross section is oblate threaded rod, even number adjustable nut [10] and corresponding packing ring are housed on threaded rod, per two adjustable nut [10] and packing ring become one group, angle type Adjustable bracing bar [11] is oblate threaded rod by two sections cross sections and forms, a relative end is and expands dome-type toothed surfaces [12] in two sections, and there is screwed hole the centre of hemisphere; Described joint links [4] and is made up of the joint that twist-style can bend and stretch, and is divided into head end [13] and tail end [14], and head end [13] is a mechanical whorl nail, and tail end [14] is the pipe end of a mechanical nut.

2, artificial frame vertebra equipment according to claim 1, it is characterized in that: said spiral cone [1] also can be made up of a thread spindle [5], a sleeve end [7] and the ring [8] that moves about, wherein an end of sleeve end [7] and one section bone thread section are connected as a single entity, other end opening, on pipe shaft, be uniform-distribution with screwed hole, inside pipe wall has the screw thread that is complementary with mechanical whorl, is uniform-distribution with screwed hole on the ring [8] that moves about, and on the ring inwall screw thread that is complementary with mechanical whorl is arranged.