CN2219095Y

CN2219095Y - Automatic retractor with light source and two-wing vertebral lamina

Info

Publication number: CN2219095Y
Application number: CN 95206652
Authority: CN
Inventors: 李重茂; 胡金城; 李重尧
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-03-30
Filing date: 1995-03-30
Publication date: 1996-02-07
Anticipated expiration: 2005-03-30

Abstract

The utility model discloses an automatic retractor with a light source and two-wing vertebral lamina, which is composed of a two-wing hook, a regulating and fixing device for the hook, a frame, a spinous process hook and a regulating lock knob for a cold-light source. When undergoing the surgery of removing the tissue of vertebral pulp, a small joint is hooked by the hook; a spinous process is held by the spinous process hook; the hook is adjusted again to expose satisfactorily; the opening degree of incision is ensured to not change always. The extroversive lip structure of the vertebral lamina prevents from squeezing muscles during the visual field of surgery operation. The automatic retractor with a light source and two-wing vertebral lamina widens the visual field of surgery operation, reduces auxiliary persons, accelerates the speed of surgery operation and reduces the suffering of patients. The hook which is provided with the cold-light source to illuminate directly in the wound can enhance the safety of operations. The utility model has the advantages of plenteous light ray, simple structure, easy use, etc.

Description

Band light source double-vane vertebral plate self-retractor

This utility model relates to medical surgical surgery tractor apparatus.

It is that the treatment lumbar intervertebral disc goes out one of disease effective ways in fact that nucleus pulposus is extractd.In operation process, as insufficient light or expose bad and influence the visual field, all can directly influence operation technique and surgical effect.Traditional laminectomy retractor, need an assistant to help the tractive drag hook, or be suspended on the operating-table with binder, surgical staff and trouble have been increased, add the structural defective of traditional drag hook, the muscle that makes operative site is squeezed in the surgical field of view from the both sides of drag hook, it is lasting to need by operation, stably draw back operative site muscular tissue in addition, make the doctor can't obtain the good visual field, and otch little (about 4 centimetres) is and dark, and light also is difficult to irradiation enters, and this has all influenced the safety coefficient and the operative effect of operation.

The purpose of this utility model is to overcome the deficiencies in the prior art and a kind of simplification operation technique is provided, and is convenient to wound and exposes, and improves the band light source double-vane vertebral plate self-retractor of surgical effect.

This utility model is achieved by the following scheme: the double-vane drag hook is regulated holder by drag hook and is formed adjustable connection of sliding with rectangular frame, the preceding edgewise of framework is provided with 2 along its spinous process hook that slides and move, be provided with cold light source at a drift angle place of framework and regulate fixing button, realize the adjusting in irradiation orientation.

Utilize above-mentioned drag hook treatment prolapse of lumbar intervertebral disc to extract the nucleus pulposus operation, but the manual adjustments otch spaces out, and remain unchanged, reduce the operation paraprofessional personnel, save surgery cost, the procheilon structure that turns up on the vertebral plate prevents muscle squeezes in surgical field of view, open surgical field of view, so that the quickening operative speed reduces the patient suffering.Drag hook is furnished with cold light source, and direct lighting in the wound is bright and clear, has improved operation safety.This drag hook also has simple in structure, clinical advantage such as easy to use.

Description of drawings.

Fig. 1 is this utility model structural representation.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the A-A cutaway view of Fig. 1.

Fig. 4 is a double-vane drag hook structure chart.

Fig. 5 is the vertical view of Fig. 4.

Fig. 6 regulates the fixing button structure chart for cold light source.

Remake by above-mentioned accompanying drawing embodiment and to describe in further detail.

The double-vane drag hook (1) of band light source double-vane vertebral plate self-retractor (referring to Fig. 1-6) is L-shaped, and end face has 15 grooves that are arranged in parallel (12), and vertebral plate part both sides have the lip of turning up (13), prevent that operative site both sides muscle from pressing in the surgical field of view.Drag hook is regulated holder by drag hook and is formed adjustable connection of sliding with rectangular frame (7).Drag hook is regulated holder and is comprised and the slide (2) of framework welding one that slide has

The shape chute, the double-vane drag hook (1) of square-section can be along chute slippage adjustable range, slide (2) end face is equipped with by what hinged point (11) connected presses plate (4), press the sweeping position-limited claw of an end (3) of plate, arbitrary groove (12) hook that it passes slide end face hole and drag hook end face draws identical, and its effect is that the distance after the locking drag hook is regulated is constant, presses between the other end of plate and the slide reed (10) is housed, reed one end is fixed on presses the plate downside, and the other end is fixed on the slide upside.

Framework (7) is pressed the rectangular structure of surgical wound feature, 88 millimeters * 52 millimeters of inside casing sizes (generally long 40 millimeters at otch, wide 30 millimeters), the needs of enough operative incisions, on its preceding edgewise, be provided with 2 and can need the shift position by patient's operation along its spinous process hook (8) that slides and move.One drift angle place of framework is provided with cold light source and regulates fixing button, it comprises the band handle spheroid (9) with framework welding one, have that cold light beam hole (14) and spherical recess two are universal to turn round the relative obvolvent of plate (6) on spheroid, spherical recess and spheroid match, by screw (5) that it is fastening, the electric wire that connects cold light source is contained in the cold light beam hole (14), can do the universal adjusting of reversing during use on demand.

This utility model has been peeled off musculus sacrospinalis earlier before using, use drag hook (1) to hook little joint then, withstand spinous process with spinous process hook (8), the re-adjustment drag hook extremely exposes till the satisfaction, presses plate (4) one ends with the finger pressure during adjusting, makes position-limited claw (3) disengagement drag hook groove (12), be that removable drag hook is to the needs position this moment, treat finger in case loosen, press plate and under reed (10) effect, reset, the groove that position-limited claw is snapped in match and being positioned.

Claims

1. be with light source double-vane vertebral plate self-retractor for one kind, comprise the double-vane drag hook, it is characterized in that this double-vane drag hook (1) forms adjustable connection of sliding by drag hook adjusting holder and rectangular frame (7), the preceding edgewise of framework is provided with 2 along its spinous process hook (8) that slides and move, and a drift angle place of framework is provided with cold light source and regulates fixing button.

2. band light source double-vane vertebral plate self-retractor as claimed in claim 1 is characterized in that described double-vane drag hook (1) end face has several parallel grooves (12), has the lip of turning up (13) on the vertebral plate.

3. band light source double-vane vertebral plate self-retractor as claimed in claim 1, it is characterized in that described drag hook adjusting holder comprises the slide (2) with chute, slide and frame fixation, the slide end face is equipped with by what hinged point (11) connected presses plate (4), an end of pressing plate has the position-limited claw (3) that draws with drag hook groove anastomosis hook, and reed (10) is housed between the other end and the slide.

4. band light source double-vane vertebral plate self-retractor as claimed in claim 1, it is characterized in that described cold light source adjusting fixing button comprises the band handle spheroid (9) that is connected with framework (7), have that cold light beam hole (14) and spherical recess two are universal to turn round the relative obvolvent of plate (6) on spheroid (9), fix by screw.