CN2440456Y

CN2440456Y - Device for associating intervertebral disc mirror operation

Info

Publication number: CN2440456Y
Application number: CN 00221725
Authority: CN
Inventors: 刘富华
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-11
Filing date: 2000-09-11
Publication date: 2001-08-01
Anticipated expiration: 2010-09-11

Abstract

The utility model belongs to a matched auxiliary instrument of an MED II diskoscope operation system, which is used for operations in vertebral canals of spinal columns in orthopaedics and comprises a handle part of the instrument, a rod part and a head part thereof. The utility model is characterized in that the end part of the head part is provided with an expanding part which extends to one side or both sides, and the longitudinal end face of the expanding part is provided with ripples. The instrument has another structure that the head part is a hollow barrel body, the end part of the barrel body is an annular cutting edge, and the barrel body is provided with a through gap on the wall adjacent to the bottom of the barrel body; or the head part is a hook-shaped body on which a cutting edge is arranged. After the utility model is used, operations are convenient, openings of wounds can be decreased, and patients can recover as soon as possible.

Description

MED operation assistive device

This utility model belongs to the supporting assistive device of a kind of MED II " MED " surgery systems, for the usefulness of operation in the orthopaedics vertebral column canal.

Treatment is during prolapse of lumbar intervertebral disc, the domestic conventional open surgery that adopts, its defective be otch big, hemorrhage many, wound is big, the hospital stays is long; China's import in nearly 2 years U.S. MED II surgery systems, when utilizing this system to undergo surgery, only need a very little otch, its wound diameter is about 1.6 centimetres usually, its amount of bleeding only is about 70 milliliters, thereby can shorten the hospital stays greatly, leaves the bed ahead of time.For patient's rehabilitation as early as possible provides condition.But, when utilizing this system to undergo surgery, some insoluble problems are arranged still, as when the bone vertebra of vertebral body trailing edge occurring, or phenomenon such as ossification of posterior longitudinal ligament, and can cause surgical effect not good during the cutting of ligamenta flava, bring misery to patient, that have even lifelong disabled.

The purpose of this utility model is a kind of assistive device that is exclusively used in the MED operation of design, with handled easily, reduces patient's misery, quickens patient's rehabilitation process.

Its main technical schemes comprises shank, bar portion and the head thereof of apparatus, it is characterized in that having in the end of head an enlarged portion of extending to one or both sides, at the longitudinal terminal surface of this enlarged portion ripple is arranged.

The another kind of structure of this apparatus is made up of shank, bar portion and the head thereof of apparatus, it is characterized in that head is the cylindrical shell of a hollow, is an annular cutting edge in the end of this cylindrical shell, and the gap of perforation is arranged on the wall of cylindrical shell near its bottom.

The 3rd kind of structure of this apparatus comprises shank, bar portion and the head thereof of apparatus equally, it is characterized in that head is a crozier, and this crozier is a cutting edge towards a side of shank, and opposite side is the cutting edge base portion.

Above-mentioned shank and bar portion are rod-like element, and the slightly larger in diameter of shank is in the diameter of bar portion.

The utility model has the advantages that utilize this cover apparatus after, can effectively and easily overcome is originally utilizing MED II " MED " existing because of being difficult to remove the bone vertebra or the ossification of posterior longitudinal ligament of vertebral body trailing edge when surgery systems undergos surgery, or because of being difficult to cut problem such as surgical effect that ligamenta flava causes is not good, improve the success rate of operation, alleviate patient's misery, shorten patient's treatment time.

Fig. 1 is a kind of structure chart of the present utility model.

Fig. 2 is the enlarged drawing of head among Fig. 1.

Fig. 3 is an another kind of structure chart of the present utility model.

Fig. 4 is another structure chart of the present utility model.

Fig. 5 is the A-A enlarged drawing of Fig. 4.

Fig. 6 is the 4th, 5 intervertebral space sketch maps.

Fig. 7 is for to cut the ligamenta flava sketch map with the billhook hook.

Fig. 8 is the ossified and outstanding situation sketch map of vertebral pulp for the intervertebral disc fiber.

Fig. 9 is the sketch map with the ossified property annulus fibrosus disci intervertebralis of circular cutter cutting.

Figure 10 is a vertebral body trailing edge hyperosteogeny sketch map.

Figure 11 is the sketch map with hyperosteogeny in the impacter punching press canalis spinalis.

Figure 12 is a side schematic view.

Operating theater instruments of the present utility model always has 3 kinds, and 5, constitute a cover, in the whole surgery process, use successively, indispensable.

Shown in Fig. 1,3,4: each operating theater instruments is made up of shank 1, bar portion 2 and head 3, first kind of apparatus is referred to as impacter 18, total one-sided extension and bilateral extend two kinds, as shown in Figure 1: in its head 3 oriented both sides or the side enlarged portion 5 of extending, ripple 4 is arranged at the longitudinal terminal surface of this enlarged portion 5; Second kind of apparatus is circular cutter 17, and as shown in Figure 3: its head 6 is the cylindrical shell 8 of a hollow, and annular cutting edge 12 is arranged in the end of this cylindrical shell 8, and the gap 7 of perforation is arranged on the wall of cylindrical shell 8, and this apparatus also has two kinds of specifications of size; The third apparatus is a billhook 16, and as shown in Figure 4: its head 9 is a crozier, is cutting edge 11 at this crozier towards a side of shank 1, and opposite side is a cutting edge base portion 10.

Be that example is made Nuclectomy with the 4th, 5 intervertebral spaces below.

1, cut epidermal tissue with the general surgery apparatus, manifest ligamenta flava between vertebral plate, see Fig. 6, wherein 12 is the 4th, 5 little joints, and 13 is the right side yellow ligament, and 14 is the 5th spinous process, and 15 is the 4th spinous process.

2, reuse billhook 16 hooks are cut ligamenta flava, see Fig. 7.

3, behind the excision ligamenta flava, separate with nerve dissector, the neuroprotective root appears ossified property fibrous ring, sees Fig. 8.

4, reuse bone hammer hammering circular cutter 17, and the ossified fibrous ring of cutting is extractd nucleus pulposus with the vertebral pulp pincers then, sees Fig. 9.

5, after the excision reconstruction of nucleus gelatinosus tissue, can see the vertebral body trailing edge has hyperosteogeny 22, sees Figure 10.

6, impact hyperosteogeny (being commonly called as bony spur) with impacter 18, horizontal to the vertebral body trailing edge, shown in the dotted line among Figure 12 23,, improve curative effect with control postoperative nerve root irritation symptom.

Claims

1, MED operation assistive device comprises shank (1), bar portion (2) and the head (3) thereof of apparatus it is characterized in that there is an enlarged portion (5) of extending to one or both sides the end of depositing head (3), at the longitudinal terminal surface of this enlarged portion (5) ripple (4) is arranged.

2, MED operation assistive device, the shank (1), bar portion (2) and the head (6) thereof that comprise apparatus, it is characterized in that head (6) is the cylindrical shell (8) of a hollow, in the end of this cylindrical shell (8) is an annular cutting edge (12), and the gap (7) of perforation is arranged on the wall of cylindrical shell (8) near its bottom.

3, MED operation assistive device comprises shank (1), bar portion (2) and the head (9) thereof of apparatus it is characterized in that head (9) is a crozier that this crozier is a cutting edge (11) towards a side of shank, and opposite side is cutting edge base portion (10).

4, according to claim 1 or 2 or 3 described apparatuses, it is characterized in that shank (1) and bar portion (2) are rod-like element, the slightly larger in diameter of shank (1) is in the diameter of bar portion (2).