CN105167837A

CN105167837A - Aiming device for minimally invasive treatment of pubic ramus fracture

Info

Publication number: CN105167837A
Application number: CN201510485358.2A
Authority: CN
Inventors: 郑占乐; 张英泽; 常恒瑞; 于贤; 陈伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-08-10
Filing date: 2015-08-10
Publication date: 2015-12-23

Abstract

The invention discloses an aiming device for minimally invasive treatment of pubic ramus fracture and belongs to the technical field of orthopedic medical instruments. The aiming device is used for determining position and direction when a guide needle is embedded. The technical scheme includes that the front end face of a fixing disc is matched with anatomic shape of pubic tubercle, and multiple aiming device pipes are fixed on the rear end face of the fixing disc and radially distributed in the circumferential direction by taking the central axis of the fixing disc as a center. The front end of the fixing disc is arranged on the pubic tubercle, and the central axis of the fixing disc faces the direction in which the guide needle is embedded; a fixing screw can be embedded accurately by performing pelvic obturator loxosis X-ray fluoroscopy and pelvic inlet X-ray fluoroscopy, selecting the same aiming device pipe where two projection positions are ideal and embedding the guide needle along the aiming device pipe. The aiming device is simple in structure and convenient to use, embedding position and direction of the fixing needle can be determined quickly, surgical operation difficulty is reduced, surgical time is shortened, and the problem of technology for minimally invasive treatment of pelvic fracture is solved.

Description

A kind of sight of minimally-invasive treatment fracture of pubic rami

Technical field

The present invention relates to a kind of sight of inserting guide pin when carrying out minimally-invasive treatment to fracture of pubic rami, belonging to orthopaedic medical treatment fixture technology field.

Background technology

Fracture of pubic rami is the more common type of fracture of pelvis, and traditional operation method is through the capable internal fixation of Ilioinguinal approach approach, and this approach is Letournel and nineteen sixty-five start to apply, and is still the classical approach of operative treatment fracture of pubic rami so far.But it is large that this operative approach has wound, complicated operation, the shortcomings such as post-operative complication is many, the lock out operation of window especially, be easy to damage local vascular and nerve, postoperative lower limb vein thrombus incidence rate is high.Along with the progress of Imaging Technology, adopt under percutaneous and insert guide pin, prolong guide pin afterwards and be screwed into hollow screw and carry out Wicresoft and fix fracture of pelvis and become pelvis fracture operation and treat new development trend.In new minimal invasive surgical procedures, need to carry out anticipation and monitoring in conjunction with fluoroscopic apparatus to the position and direction of inserting screw guide pin by 3-dimensional image guider, to realize accurately inserting guide pin.

Current Problems existing is, in practical operation, due to implantation site and the direction of guide pin must be determined in three dimensions, therefore imaging data is needed to carry out synchronous with the three-dimensional spatial information of guide pin position in art, and the maximum difficult problem perplexing medical worker is the iconography object of reference of not inserting guide pin, make that anticipation is carried out to the position and direction of inserting guide pin abnormal difficult, need repeatedly to grope and adjust, considerably increase operating time, make the quick of Minimally Invasive Surgery, convenient, the advantage alleviating patient suffering and shortening operating time greatly reduces.At present, the expensive image documentation equipment cost of use that long-time operation causes, and the difficult problem in operating technology does not obtain basic solution so far, hinder the popularization of minimally-invasive treatment fracture of pelvis new technique in most of hospital, become and carry out minimally-invasive treatment fracture of pelvis new technique problem demanding prompt solution.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of sight of minimally-invasive treatment fracture of pubic rami, this sight can for the position and direction of inserting staple provide iconography object of reference in the process of minimally-invasive treatment fracture of pubic rami, make medical worker can determine implantation site and the direction of staple fast, reduce operation technique difficulty, shorten operating time, play the advantage of minimally-invasive treatment fracture of pelvis new technique.

The technical scheme solved the problems of the technologies described above is:

A kind of sight of minimally-invasive treatment fracture of pubic rami, it is by fixed disk, aiming organ pipe forms, fixed disk is disk or oval plate, front end face and the pubic tubercle anatomical shape of fixed disk match, the card of fixed disk there is multiple circular hole, the rear end face of fixed disk is fixed many and aim at organ pipe, the front end aiming at organ pipe is connected with the circular hole in fixed disk card, the aiming diameter of bore of organ pipe and the diameter of guide pin match, many are aimed at organ pipe centered by the central axis of fixed disk in a circumferential direction in the distribution of radiation sample, adjacent two are aimed at the angle having 1-3 degree between organ pipe, the outer tube wall of every root aiming organ pipe studs with multiple lead button, multiple lead button is aligned along the length direction aiming at organ pipe, aiming organ pipe and fixed disk are radiotransparent carbon fibre materials.

The sight of above-mentioned minimally-invasive treatment fracture of pubic rami, described aiming organ pipe is 8-15 root, and each aims at the lead button that organ pipe is inlayed increases one by one from 5 to 16, in order to differentiate each guiding organ pipe in fluoroscopy during operation image.

The invention has the beneficial effects as follows:

Fixed disk front end of the present invention is placed on pubic tubercle, the central axis of fixed disk is towards the direction inserting guide pin, by perspective pelvis closed pore loxosis X-ray film and perspective pelvic inlet position X-ray film, select twice throwing according to all comparatively ideal same aiming organ pipe in position, aim at organ pipe along this and insert guide pin, guide pin can be ensured in closed pore position and entrance position all at ideal position, thus accomplish accurately to insert staple.Structure of the present invention is simple, easy to use, aim at organ pipe and can provide iconography object of reference for the position and direction inserting staple, make medical worker can determine implantation site and the direction of staple fast, decrease operation technique difficulty, shorten operating time, give full play to the advantage of Minimally Invasive Surgery.

The present invention is the innovation of minimally-invasive treatment fracture of pelvis technology, solve the difficult problem in puzzlement minimally-invasive treatment fracture of pelvis technology, greatly reduce the difficulty of minimally-invasive treatment pelvis fracture operation, greatly reduce expensive image documentation equipment cost of use, extremely be conducive to minimally-invasive treatment fracture of pelvis technology carrying out in each hospital, there is significant economic benefit and social benefit.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is using state schematic diagram of the present invention.

In figure, labelling is as follows: fixed disk 1, aiming organ pipe 2, circular hole 3, lead button 4, guide pin 5, pubic tubercle 6.

Detailed description of the invention

The present invention is made up of fixed disk 1, aiming organ pipe 2.

Show in figure, fixed disk 1 is disk, the card of fixed disk 1 has multiple circular hole 3, and front end face and pubic tubercle 6 anatomical shape of fixed disk 1 match, the rear end face of fixed disk 1 is fixed many and aim at organ pipe 2, the front end aiming at organ pipe 2 is connected with the circular hole 3 in fixed disk 1 card.

Show in figure, aiming at organ pipe 2 is 8-15 root, the aiming diameter of bore of organ pipe 2 and the diameter of guide pin 5 match, and many are aimed at organ pipes 2 and distribute in radiation sample in a circumferential direction centered by the central axis of fixed disk 1, have the angle of 1-3 degree between adjacent two aiming organ pipes 2.One embodiment of the present of invention adopt 12 to aim at organ pipe 2, adopt the angle of 2 degree between two adjacent aiming organ pipes 2.

Show in figure, the outer tube wall of every root aiming organ pipe 2 studs with multiple lead button 4, and multiple lead button 4 is aligned along the length direction aiming at organ pipe 2, and the effect of lead button 4 to demonstrate the trend aiming at organ pipe 2 under X-ray line.Organ pipe 2 is aimed in order to distinguish each, 12 are aimed at the lead button 4 that organ pipe 2 is inlayed and increase one by one from 5, namely first aiming organ pipe 2 is inlayed on 5 lead buttons 4, second aiming organ pipe 2 and inlay 6 lead buttons 4, until the 12 is aimed on organ pipe 2 and inlay 16 lead buttons 4.

The using method of the present invention in operation is as follows:

Pubic tubercle 6 is exposed by mini-invasive incision, sight fixed disk 1 is placed on pubic tubercle, perspective pelvis closed pore loxosis X-ray film, select and determine that implantation site aims at organ pipe 2 preferably, configure intensive owing to aiming at organ pipe 2, simultaneously the angle of adjacent aiming organ pipe 2 is more or less the same, and several aiming organ pipe 2 generally all can be had to enter in the range of choice, have several record several.

Then have an X-rayed pelvic inlet position X-ray film, select implantation site on this position to aim at organ pipe 2 preferably, carry out record.

Contrast the position chosen for twice and aim at organ pipe 2 preferably, twice throwing must be had according to all comparatively ideal aiming organ pipe 2 in position, then aim at organ pipe 2 along this and insert guide pin 5, guide pin 5 can be ensured in closed pore position and entrance position all at ideal position, thus accomplish accurately to insert staple.

Claims

1. the sight of a minimally-invasive treatment fracture of pubic rami, it is characterized in that: it is by fixed disk (1), aim at organ pipe (2) composition, fixed disk (1) is disk, the card of fixed disk (1) there is multiple circular hole (3), front end face and pubic tubercle (6) anatomical shape of fixed disk (1) match, the rear end face of fixed disk (1) is fixed many and aim at organ pipe (2), the front end aiming at organ pipe (2) is connected with the circular hole (3) in fixed disk (1) card, the diameter of the diameter of bore and guide pin (5) that aim at organ pipe (2) matches, many are aimed at organ pipe (2) centered by the central axis of fixed disk (1) in a circumferential direction in the distribution of radiation sample, adjacent two are aimed at the angle having 1-3 degree between organ pipe (2), the outer tube wall of every root aiming organ pipe (2) studs with multiple lead button (4), multiple lead button (4) is aligned along the length direction aiming at organ pipe (2).

2. the sight of minimally-invasive treatment fracture of pubic rami according to claim 1, is characterized in that: described aiming organ pipe (2) is 8-15 root, and each aims at the lead button (4) that organ pipe (2) is inlayed increases one by one from 5.