CN2681690Y

CN2681690Y - Device for assisting intervertebral disc mirror operation

Info

Publication number: CN2681690Y
Application number: CN 200420017481
Authority: CN
Inventors: 廖中东
Original assignee: NO 2ND HOPSPITAL OF HUANGSHI
Current assignee: NO 2ND HOPSPITAL OF HUANGSHI
Priority date: 2004-03-19
Filing date: 2004-03-19
Publication date: 2005-03-02
Anticipated expiration: 2014-03-19

Abstract

The utility model relates to a device for assisting vertebral disc mirror operation, comprising a draw hook type assisting channel, an arc-shaped fiber ring knife and an L-shaped impactor, and each of the components has a holding rod. The utility model is characterized in that the holding rod of the draw hook type assisting channel is vertically connected with a tubular channel; a viewing window is arranged at the insertion end of the tubular channel; a draw hook is arranged at the terminal of the insertion end. The holding rod of the fiber ring knife is connected with a cutter body whose front section is arc groove-shaped, and the end of the arc groove is provided with an arc-shaped cutting edge. The end of the insertion end of the holding rod of the L-shaped impactor is provided with an impactor head. The utility model fills the blank of the shortage of the assisting device in the vertebral mirror operation, can conveniently, safely and reliably solve the problems of fiber ring protrusion, center type protrusion, calcification and hyperosteogeny, obviously improves treating efficiency and operation safety, enlarges the indication range, and gives full play to the advantages of high efficiency and micro wound of the vertebral disc mirror.

Description

MED series assistive device

(1) technical field: this utility model belongs to medical apparatus and instruments, is specifically related to a kind of serial assistive device that cooperates the intervertebral videoendoscopic surgery, comprises drag hook type accessory channel, arc fiber cutting ring and L shaped driver.

(2) background technology: the MED technology is the micro-less invasive techniques that field of spinal surgery occurred in recent years, is mainly used in the treatment prolapse of lumbar intervertebral disc, is to treat one of state-of-the-art technology of this disease at present.Domestic main use at present be the product of U.S.'s pivot method mould and German Zeppelin, because present MED system is mainly at simple property prolapse of lumbar intervertebral disc design, outstanding fibrous ring is difficult for thoroughly removing, outstanding and be associated with the case difficult treatment of calcification of posterior longitudinal ligament or the osteophytosis of vertebral body trailing edge or can't handle at all to central type, so that the contraindication that many doctors are outstanding with central type, case that merge calcification or osteophytosis is classified this art formula as.When handling outstanding fibrous ring, because of no special equipment, the reverse spatula that many doctors use with the processing vertebral pulp heads into intervertebral space by force with outthrust, exists to expose because of overexerting that the offside fibrous ring injures trunk or the hidden danger of the apparatus that fractures, and is difficult for handling totally.The little straight sharp knife that also has the doctor to join with original equipment is handled outstanding fibrous ring, but this cutter is a limit blade tip cutter, does not note just having the possibility of damage spinal dura mater and nerve root slightly, poor stability, and blade is thin, frangibility and rust, and cost an arm and a leg.

In addition, for handling calcified tissue and osteophytosis, owing to there is not relevant apparatus, more domestic colleagues also have succedaneums such as the trepan of employing, osteotome, but owing to be not special equipment, exist and treat shortcomings such as operative site is misfitted, operation easier big, poor stability, therefore, very pressing for clinically can be at various types of intervertebral disc prolapse, and can cooperate the special-purpose assistive device of performing the operation with MED.

(3) summary of the invention: the purpose of this utility model is exactly a kind of special cooperation MED operation that designs at the problems referred to above, and cases such as, calcification outstanding to outstanding fibrous ring, central type and osteophytosis all can be handled easy, safe and reliable MED series assistive device.

MED series assistive device of the present utility model, comprise drag hook type accessory channel, arc fiber cutting ring and L shaped driver, they all have holding rod, the holding rod of described drag hook type accessory channel is connected with tubular conduit, insertion end in tubular conduit is provided with form, and the end of insertion end is provided with drag hook; Be connected with cutter hub on the holding rod of described fiber cutting ring, the leading portion of cutter hub is arc groove shape, and arc groove end has curved edge; Described L shaped driver, the end of its holding rod insertion end are provided with squeezes into head.

Form length on the described tubular conduit is 25-35mm, highly is 1/2～2/3 of channel diameter, and an end of nearly holding rod is processed into 1/3～1/4 arc.

The drag hook of described tubular conduit end is the hook-shaped edge of arc that outwards turns down, the wide 1.0～2.0mm of edge.

Curved edge on the described arc fiber cutting ring is 1/3～1/4 arc, down-bite jaw; Be processed with anti-skidding stricture of vagina on its holding rod.

The head of squeezing into of described L shaped driver is hook-shaped, and the angle between its bottom surface and the holding rod can be 90 ° or 100 °.Shiny surface or non slip surface can be processed in this bottom surface.

Serial apparatus in this utility model is used in the MED operation, and Each performs its own functions; Wherein the drag hook type accessory channel mainly provides the escape way that fiber cutting ring etc. can accurately enter operative site rapidly, nerve and the manipulating approach around the operative site can be separated fully simultaneously; And arc fiber cutting ring is used for outstanding fibrous ring is carried out circular incision, because this fiber cutting ring blade part is downward, does not have the limit sword, can press before incision and visit the edge, uses as safe as a house; L shaped driver then is primarily aimed at outstanding person of central type or companion calcification person and vertebral body trailing edge hypertrophy hyperosteogeny and handles, but beats while visiting, up to the hypertrophy place is suppressed smooth till, very simple, not only thoroughly but also not hemorrhage.

The appearance of this utility model series apparatus, make MED operation can not handle or outstanding fibrous ring, the central type of difficult treatment case outstanding, that merge calcification and osteophytosis all can be solved well to existing equipment, therapeutic efficiency and safety have obviously been improved, enlarge the indication scope, further given full play to this technology Wicresoft advantage efficiently.

(4) description of drawings:

Fig. 1 is a drag hook type accessory channel structural representation in this utility model;

Fig. 2 is an arc fiber cutting ring master apparent direction structural representation in this utility model;

Fig. 3 is the structural representation that Fig. 2 looks up direction;

Fig. 4 is a L shaped driver structural representation in this utility model.

(5) specific embodiment:

Drag hook type accessory channel in this utility model referring to Fig. 1, comprises holding rod 1, and this holding rod can have certain width, be generally one the palm wide, hold the end have certain camber so that the doctor steadily grips.Connected vertically with holding rod is tubular conduit 2, is generally made by stainless steel tube.The tubular conduit leading portion inserts the position and has form 3, and this form length is 30mm, highly is 1/2 of channel diameter, one end of nearly holding rod is processed into 1/3 arc, blunt nosed drag hook 4 is processed in the channel end end, and this drag hook is the hook-shaped edge of arc of outside turnover, the wide about 1.5mm of edge.

Arc fiber cutting ring of the present utility model referring to Fig. 2, Fig. 3, is connected with cutter hub 5 on its holding rod, the cutter hub leading portion is processed into arc groove 6, and its end is 1/3 curved edge 7, is processed with anti-skidding stricture of vagina on the holding rod 1.

L shaped driver in this utility model referring to Fig. 4, is processed with in the upstream end end of holding rod and squeezes into 8, and this bottom surface 9 and angle between the holding rod of squeezing into head can be 90 ° or 100 °, and two kinds of shiny surface or non slip surfaces can be processed in the bottom surface.

Claims

1. MED series assistive device, comprise drag hook type accessory channel, arc fiber cutting ring and L shaped driver, all has holding rod [1], it is characterized in that: the holding rod [1] of the described drag hook type accessory channel of a. is connected with tubular conduit [2], insertion end in tubular conduit is provided with form [3], and the end of insertion end is provided with drag hook [4]; Be connected with cutter hub [5] on the holding rod of b. described fiber cutting ring, the leading portion of cutter hub is arc groove shape [6], and arc groove end has curved edge [7]; C. described L shaped driver, the end of its holding rod insertion end are provided with squeezes into head [8].

2. MED series assistive device according to claim 1, it is characterized in that: the form on the described tubular conduit [3] length is 25-35mm, highly is 1/2～2/3 of channel diameter, an end of nearly holding rod [1] is processed into 1/3～1/4 arc.

3. MED series assistive device according to claim 1 and 2 is characterized in that: the arc hook-shaped edge of the drag hook of described tubular conduit end [4] for outwards turning down, the wide 1.0～2.0mm of edge.

4. MED series assistive device according to claim 1, it is characterized in that: the curved edge on the described arc fiber cutting ring is 1/3～1/4 arc, down-bite jaw; Its holding rod is processed with anti-skidding stricture of vagina on [1].

5. MED series assistive device according to claim 1 is characterized in that: the head of squeezing into of described L shaped driver is hook-shaped, and the angle between its bottom surface [9] and the holding rod [1] can be 90 ° or 100 °.

6. MED series assistive device according to claim 1, it is characterized in that: shiny surface or non slip surface can be processed in the described bottom surface of squeezing into head.