CN201341901Y

CN201341901Y - Spine minimally invasive surgery retracting device

Info

Publication number: CN201341901Y
Application number: CNU2008201578201U
Authority: CN
Inventors: 贺石生; 陈自强
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-25
Filing date: 2008-12-25
Publication date: 2009-11-11
Anticipated expiration: 2018-12-25

Abstract

The utility model belongs to the technical field of medical instruments, in particular to a spine minimally invasive surgery retracting device, which comprises a double-shaft retractor, a toothed retracting hook, a tirmthaau retracting hook, a handle retracting hook, a handle, a knock connecting bar, a screwdriver and a localizer. The double-shaft retractor comprises tongs arms and a gear plate, double shafts are arranged on the tongs arms; the toothed gear comprises a retracting handle, an arc plate and a mounting bracket with a groove; an arc depression is formed on the upper part of the retracting handle, and a sliding groove is formed on the handle; the retracting handle and the arc plate are connected through the sliding groove, and teeth are formed at the bottom of the arc plate; the tirmthaau retracting hook is formed by connecting a retracting arm and a cross bar, and a projection is formed above the cross bar; the handle retracting hook comprises the arc plate and the handle, and the handle is fixed at the top of the arc plate; a notch is formed at one end of the handle, and a neck is arranged at the port of the knock connecting bar; the localizer is formed by a plurality of equally spaced fences, icons of different shapes are arranged on the localizer for marking positions. The utility model has the advantages of convenient use and simple operation and can clearly expose operation incisions.

Description

One cover minimally invasive spine surgical pull device

Technical field

This utility model belongs to technical field of medical instruments, is specifically related to a cover minimally invasive spine surgical pull device.

Background technology

The important development trend of modern surgery is the Wicresoftization of operation, and the vertebral column minimally invasive surgical technic is the outstanding feature that nearly ten Nian Lai are representing surgical field clinical level and development in science and technology.It is little that Minimally Invasive Surgery has wound, and cicatrix is little, and satisfactory effect recovers advantage such as fast.The minimally invasive spine surgical otch is little, and lower back muscle is peeled off few, and the routine operation apparatus is difficult to satisfy the requirement that operative incision appears, and needs special distraction instrument just can obtain good appearing.At present, the minimally invasive spine surgical pull device of domestic use is import, and its price is very expensive.The minimally invasive spine surgical pull device of domestic design, design concept is outmoded, the apparatus heaviness, the complex operation complexity is difficult to reach the Minimally Invasive Surgery requirement.The utilization modern concepts designs various minimally invasive spine surgical pull device with independent intellectual property right for reducing medical expense, improves therapeutic effect, promotes China's spinal surgery level of development to have very important and practical value.

Summary of the invention

The purpose of this utility model is to provide a cover minimally invasive spine surgical pull device.

A cover minimally invasive spine surgical pull device that the utility model proposes, this device comprise twin shaft retractor 1, band tooth tractive hook 2, a tractive hook 3, handle tractive hook 4, handle 5, knock connecting rod 6, spiral shell cutter 7 and localizer 8, wherein:

Twin shaft retractor 1 has two, every twin shaft retractor 1 is made up of two tong arms 11 and gear plate 10, the two ends of gear plate 10 connect an end of tong arm 11 respectively, be equipped with on each tong arm 11 9, two twin shaft retractors 1 of twin shaft wherein one tong arm 11 other ends be and bended forward shape; When two twin shaft retractors, 1 common the use, there is the twin shaft retractor 1 of having bended forward shape tong arm 11 should place the top, the tong arm of having bended forward 11 has avoided two pincers to interact, and has reduced the height of tong arm 11, and what help retracting is stable;

Band tooth tractive hook 2 is made up of tractive handle 12, arc shape board 13 and fixed mount 26, fixed mount 26 is positioned at tractive handle 12 tops, fixed mount 26 both sides have

groove

16,17 from top to bottom, can be used with the front end breach 28 of twin shaft retractor 1, the breach 24 of handle 5 respectively; Tractive handle 12 tops one side has arciform depression 14, and tractive handle 12 shanks have sliding tray 18, and arc shape board 13 is positioned at tractive handle 12 shanks one side, and tractive handle 12 adopts screw to be connected with arc shape board 13 by sliding tray 18, and arc shape board 13 bottoms are provided with tooth 15;

A tractive hook 3 that pauses is connected to form by stretch arm 21 and cross bar 27, cross bar 27 tops are provided with

projection

19,20 successively,

projection

19,20 can be used with the breach 24 on the handle 5 and the front end breach 28 of twin shaft retractor 1 respectively, stretch arm 21 1 ends have 7-10 ° leaning angle, are difficult for slippage during the tractive soft tissue;

Handle tractive hook 4 is made up of arc shape board 22 and handle 23, and handle 23 is fixed in arc shape board 22 tops, and arc shape board 22 bottoms have tooth;

One end of handle 5 is provided with breach 24, this breach 24 respectively with band tooth tractive hook 2 on groove 16 and the projection 19 on the tractive hook 3 chimeric;

Knock the connecting rod 6 one ends 10 ° of leaning angles that are upturned, the port of this end is provided with draw-in groove 25;

Localizer 8 is made up of equidistant fence, which is provided with the difformity icon and comes mark position.

In this utility model, the tooth 15 of arc shape board 13 bottoms has 3 kinds in low inside and high outside, high outside and low outside peaceful tooth, is applicable near the appearing of upper lumbar vertebra, the next lumbar vertebra and rumpbone articular process respectively.

In this utility model, the tooth of arc shape board 22 bottoms has 3 kinds in low inside and high outside, high outside and low outside peaceful tooth, is applicable near the appearing of upper lumbar vertebra, the next lumbar vertebra and rumpbone articular process respectively.

This utility model is simple in structure, and is novel, easy to use, meets the Minimally Invasive Surgery theory, can satisfy the Minimally Invasive Surgery requirement.

Description of drawings

Fig. 1 novel biaxial retractor 1 structural diagrams.

Fig. 2 band tooth tractive hook 2 structural diagrams.

Fig. 3 tractive hook 3 structural diagrams of pausing.

Fig. 4 handle tractive hook 4 structures are graphic.

Fig. 5 handle 5 structural representations.

Fig. 6 knocks connecting rod 6 structural representations.

Fig. 7 spiral shell cutter 7 structural representations.

Fig. 8 localizer 8 structural representations.

Fig. 9 twin shaft retractor 1 is used in combination with a tractive hook 3.

Figure 10 twin shaft retractor 1 is used in combination with a tractive hook 3, band tooth tractive hook 2.

Figure 11 handle 5 is used in combination with a tractive hook 3.

Figure 12 handle 5 is used in combination with band tooth tractive hook 2.

Number in the figure: 1 is the twin shaft retractor, and 2 are band tooth tractive hook, and 3 are a tractive hook, and 4 is handle tractive hook, 5 is handle, and 6 for knocking connecting rod, and 7 is the spiral shell cutter, and 8 is localizer, 9 is twin shaft, and 10 is gear plate, and 11 is tong arm, and 12 is the tractive handle, 13 is arc shape board, and 14 is arciform depression, and 15 is the tooth of arc shape board lower end, 16,17 two grooves that are respectively on the fixed

mount

26,18 is sliding tray, 19,20 are respectively the projection of cross bar 27 tops, 21 is stretch arm, and 22 is arc shape board, and 23 is handle; 24 is the breach on the

handle

5, and 25 is draw-in groove, and 26 is fixed mount, and 27 is cross bar, and 28 is the front end breach of twin shaft retractor 1.

The specific embodiment

Further specify this utility model below by embodiment.

Embodiment 1: the minimally invasive spine surgical pull device that this utility model proposed comprises twin shaft retractor 1, band tooth tractive hook 2, a tractive hook 3, handle tractive hook 4, handle 5, knocks connecting rod 6, spiral shell cutter 7, localizer 8.

Twin shaft retractor 1 has two, every twin shaft retractor 1 is made up of two tong arms 11 and gear plate 10, the two ends of gear plate 10 connect an end of tong arm 11 respectively, all has twin shaft 9 on each tong arm 11, be convenient to arbitrarily adjust the position and the height of drag hook, gear plate 10 has and struts function automatically, is used to strut the meticulous adjusting of strength.Wherein one the tong arm 11 of twin shaft retractor 1 slightly bended forward, when two twin shaft retractors, 1 common the use, there is the twin shaft retractor 1 of having bended forward tong arm 11 should place the top, the tong arm of having bended forward 11 has avoided two pincers to interact, and reduced the height of tong arm 11, what help retracting is stable.The structure of twin shaft retractor 1 as shown in Figure 1.

The structure of band tooth tractive hook 2 as shown in Figure 2, be made up of fixed mount 26, tractive handle 12 and arc shape board 13, the top of tractive handle 12 is fixed mounts 26, and fixed mount 26 has 2 grooves 16 from top to bottom, 17, can be used with the breach 24 of twin shaft retractor 1 and handle 5 respectively.Tractive handle 12 is provided with arciform depression 14, makes things convenient for skin to slip into, and can reduce the tractive to skin.Arc shape board 13 helps stopping soft tissue when screw is implanted, and there is tooth 15 arc shape board 13 lower ends, makes when retracting more stablely with the lower end contact surface, and after use was knocked connecting rod 6 and knocked, the embedding lower end surface of bone that tooth 15 can be stable made drawing system more stable.The tooth 15 of arc shape board 13 lower ends has 3 kinds in low inside and high outside, high outside and low outside peaceful tooth, is applicable near the appearing of upper lumbar vertebra, the next lumbar vertebra and rumpbone articular process respectively.Tractive handle 12 adopts screw to be connected with arc shape board 13 by the sliding tray 18 that is positioned at tractive handle 12 shanks, can adjust the length of hook retractor, satisfies the needs of different depth otch.

The structure of a tractive hook 3 is connected to form by stretch arm 21 and cross bar 27 as shown in Figure 3, and cross bar 27 upper ends have 2

projections

19,20 successively, and

projection

19,20 can be used with handle 5 and twin shaft retractor 1 respectively.Have an appointment 8 ° leaning angle of the lower end of stretch arm 21 is difficult for slippage during the tractive soft tissue.

The structure of handle tractive hook 4 is made up of arc shape board 22 and handle 23 as shown in Figure 4, and the design of arc shape board 22 is identical with the arc shape board 13 of band tooth tractive hook 2.

The structure of handle 5 as shown in Figure 5, the breach of its front end 24 is chimeric with the groove of a band tooth tractive hook 2 and tractive hook 3 upper end, can replace self-retaining retractor manually to retract.

The structure of knocking connecting rod 6 as shown in Figure 6, its lower end has draw-in groove 25, can be chimeric with the arc shape board of band tooth tractive hook 2 and handle tractive hook 4, knock small end with hammer, can make the tooth of its lower end embed sclerotin to the band tooth tractive hook and the handle tractive hook application of force.Knocking connecting rod 6 lower ends 26 has 10 ° of leaning angles, and hammer beats the enforcement of power in being convenient to perform the operation.

This cover apparatus is furnished with 7 one on a word spiral shell cutter, and its structure is used to adjust the screw of band tooth tractive hook upper end as shown in Figure 7.

The structure of localizer 8 is made up of equidistant fence as shown in Figure 8, has the difformity icon to come mark position, is convenient to perspective location in the art.

This utility model can be with totally 16 on tooth tractive hook 2, a tractive hook 3 with rustless steel or titanium alloy material production, and length has 3.5cm respectively, 4.5cm, and 5.5cm, 6.5cm, every kind of length has the wide and wide two kinds of specifications of 1.4cm of 1cm respectively.The tooth of band tooth tractive hook 2 and handle tractive hook 4 arc shape board lower ends all has 3 kinds in low inside and high outside, high outside and low outside peaceful tooth, and every kind has 6cm and two kinds of specifications of 8cm respectively.Described parts are connected by Fig. 1-mode shown in Figure 12, and these those skilled in the art all can smooth implementation.

Claims

1, a cover minimally invasive spine surgical pull device, this device comprises twin shaft retractor (1), band tooth tractive hook (2), a tractive hook (3), handle tractive hook (4), handle (5), knocks connecting rod (6), spiral shell cutter (7) and localizer (8), it is characterized in that:

Twin shaft retractor (1) has two, every twin shaft retractor (1) is made up of two tong arms (11) and gear plate (10), the two ends of gear plate (10) connect an end of tong arm (11) respectively, be equipped with twin shaft (9) on each tong arm (11), any one in two twin shaft retractors (1) are the tong arm of twin shaft retractor (1) (11) other end has bended forward shape;

Band tooth tractive hook (2) is made up of tractive handle (12), arc shape board (13) and fixed mount (26), fixed mount (26) is positioned at tractive handle (12) top, fixed mount (26) both sides have groove (16,17) from top to bottom, are used with the front end breach (28) of twin shaft retractor (1), the breach (24) of handle 5 respectively; Tractive handle (12) top one side has arciform depression (14), tractive handle (12) shank has sliding tray (18), arc shape board (13) is positioned at tractive handle (12) shank one side, tractive handle (12) adopts screw to be connected with arc shape board (13) by sliding tray (18), and arc shape board (13) bottom is provided with tooth (15);

A tractive hook (3) that pauses is connected to form by stretch arm (21) and cross bar (27), cross bar (27) top is provided with projection (19,20) successively, projection (19,20) respectively with handle (5) on breach (24) and the front end breach (28) of twin shaft retractor (1) be used, stretch arm (21) one ends have 7-10 ° leaning angle;

Handle tractive hook (4) is made up of arc shape board (22) and handle (23), and handle (23) is fixed in arc shape board (22) top, and arc shape board (22) bottom has tooth;

One end of handle (5) is provided with breach (24), this breach (24) respectively with band tooth tractive hook 2 on groove (16) and the projection (19) on the tractive hook (3) that pauses chimeric;

Knock connecting rod (6) the one ends 10 ° of leaning angles that are upturned, the port of this end is provided with draw-in groove (25);

Localizer (8) is made up of equidistant fence, which is provided with the difformity icon and comes mark position.

2, a cover minimally invasive spine surgical pull device according to claim 1 is characterized in that the tooth (15) of arc shape board (13) bottom has 3 kinds in low inside and high outside, high outside and low outside peaceful tooth.

3, a cover minimally invasive spine surgical pull device according to claim 1 is characterized in that the tooth of arc shape board (22) bottom has 3 kinds in low inside and high outside, high outside and low outside peaceful tooth.