CN201847779U

CN201847779U - Accurate positioning handling frame used for percutaneous nephroscope set

Info

Publication number: CN201847779U
Application number: CN2010205965234U
Authority: CN
Inventors: 徐耀庭
Original assignee: SHANGHAI FIRST PEOPLE'S HOSPITAL BRANCH HOSPITAL
Current assignee: SHANGHAI FIRST PEOPLE'S HOSPITAL BRANCH HOSPITAL
Priority date: 2010-11-08
Filing date: 2010-11-08
Publication date: 2011-06-01
Anticipated expiration: 2020-11-08

Abstract

The utility model relates to a medical appliance, in particular to an accurate positioning handling frame used for a percutaneous nephroscope set, which is suitable for being used for minimally invasive percutaneous nephrolithotomy of complex kidney stone and upper ureteral stone in each hospital. The accurate positioning handling frame used for the percutaneous nephroscope set consists of a scaleplate, a protractor, a slide track and a puncture track, wherein one side of the protractor is fixedly connected with the slide track through which the scaleplate penetrates, and the other side of the protractor is movably connected with the puncture track. Before the handling frame is used, the parallel distance from the kidney center to the backbone and the parallel distance from the kidney center to the body surface are measured and calculated according to a CT (captive test) photo, the needle inserting angle is selected, and the distance from the needle inserting point to the backbone is calculated by a geometric formula. When the handling frame is used, one end of the scaleplate is arranged on the backbone, the slide track is moved to make the displayed length of the scaleplate be the calculated length, the angle of the puncture track is adjusted to make the protractor display the selected needling inserting angle, after the handling frame is positioned, the puncture needle can enter from the upper end of the puncture track. The handling frame is convenient and quick to use, can greatly improve the safety, the accuracy and the effectiveness of an operation, X-ray irradiation required by positioning can be avoided or obviously reduced, and the handling frame has obvious social benefits.

Description

PCN is with accurate positioning action frame

Technical field

This utility model relates to medical apparatus and instruments, and particularly a kind of PCN is with accurate positioning action frame, is suitable for each hospital and complexity renal calculus and epimere ureteral calculus are done is used when micro-wound percutaneous kidney is got stone.

Background technology

The common method of treatment complexity renal calculus and epimere ureteral calculus is to do Wicresoft to get stone at present.Its operation method mainly divides puncture, sets up skin kidney passage, intracavity is got stone three big steps, and so-called puncture mainly is the direction of angle, the degree of depth and the inserting needle of inserting needle when relying on X line perspective and range estimation to determine puncture.This often relies on operator's experience, and trying on repeatedly under perspective could success.The kidney of trying on so repeatedly undoubtedly the patient can cause damage, brings misery to the patient, simultaneously, also makes the operator prolong the number of times and the time of contact X ray, diminishes operator's health.

Summary of the invention

The purpose of this utility model provides a kind of PCN with accurate positioning action frame.Make Wicresoft get once success of stone puncture.Both can avoid bringing damage, reduce the patient suffering, and can make the operator reduce time of contact with X ray again patient's kidney because of repeated localised puncture.

This utility model is finished with the following method: this utility model is made up of scale, protractor, sliding rail and puncture track four parts.

Scale, protractor, sliding rail and puncture track all adopt transparent medical lucite to make.Length scale is clearly arranged on the scale.Angle index is clearly arranged on the protractor.Sliding rail is rectangular box-like, both ends open, and scale penetrates from opening, and sliding rail can slidably reciprocate along scale.The lateral center of sliding rail and the protractor center of circle coincide, and fixedly connected with viscose process with protractor one side in this side, and the protractor circle centre position has an internal thread hole, lead directly to this side of sliding rail.The puncture track is a moulding, and its pipe part vertically has an opening, and puncture needle can upper and lower activity in pipe, also can make puncture track side surfaces disengaging puncture needle.Puncture track lower end nahlock part has a hole departing from the nahlock center, and bolt is by this hole and enter to the internal thread hole of protractor, sliding rail, and the another side of protractor and puncture track are flexibly connected.

Before the use,, determine entry point C theoretically earlier by measurement, conversion on the CT sheet.Now establishing vertebrae position is that A, kidney centre bit are O, it is B that kidney centre bit O is parallel to vertebra to body surface cake, then from knowing BO (being that the kidney centre bit is parallel to the distance of vertebra to the surface) and AB (being the horizontal range of vertebra) on the CT sheet to the kidney centre bit, when usually selecting the puncture needle angle to be 45 ° (be β=45 °), entry point C to the distance of vertebrae position A be AC=AB+BO.Under A point known case, can determine the C point.If individual patients is selected the inconvenience (as running into bone etc.) to some extent of β=45 ° inserting needle, also can select β=30 ° or β=60 °, at this moment

Or

After determining, AC length gets final product implementation and operation.

During use, this utility model is placed the patient back, scale one end places vertebra centre bit (being the A point), mobile sliding rail, making the length that shows on the scale is the AC length of aforementioned calculation gained, moves the puncture track, the respective angles of selecting when the angle that puncture track pipe part is shown on protractor is calculating, at this moment, puncture needle can enter from puncture track upper end, stretches into along pipe to get final product.

This utility model is simple in structure, and is with low cost, and use this utility model is convenient, fast, the location is accurate, safety, accuracy, the effectiveness of operation have been improved greatly, minimizing is shortened the time that operator are subjected to radiohazard to patient's damage and misery, has obvious social.

Description of drawings

Fig. 1, population structure sketch map of the present utility model;

Fig. 2, scale sketch map of the present utility model;

Fig. 3, protractor sketch map of the present utility model;

Fig. 4, sliding rail sketch map of the present utility model;

Fig. 5, puncture track sketch map of the present utility model.

The specific embodiment:

With reference to Fig. 1,2, scale 1 adopts transparent medical lucite to make.Its long 25～30cm, wide 3cm, thick 2mm.

With reference to Fig. 1,3, protractor 2 adopts transparent medical lucite to make.Its radius 5cm, thick 2mm, the center, a side of the center of circle and sliding rail 3 coincide, protractor 2 is fixedlyed connected with adhesive means with this side, the circle centre position of protractor 2 has a diameter to be 2mm, to be the internal thread hole of 2mm deeply, this hole and bolt flexibly connect, and the another side of protractor 2 flexibly connects with puncture track 4 lower ends.

With reference to Fig. 1,4, sliding rail 3 adopts transparent medical lucite to make, and is rectangular box-like, both ends open, and it is long to be 3.8cm, and wide is 3cm, and height is 8mm, wall thickness 2mm.Scale 1 is through in the sliding rail 3, and both are movably connected.The center of circle of sliding rail 3 one side central points and protractor 2 coincide, and the one side viscose process fixed-link of this side and protractor 2, and it is the internal thread hole of 2mm that this side central point has a diameter, becomes the continuity of protractor 2 center of circle internal thread holes.This internal thread hole and bolt flexibly connect.

With reference to Fig. 1,5, puncture track 4 adopts transparent medical lucite injection molded.Total length 8cm, its pipe is partly long to be 7.3cm, wall thickness 1mm, internal diameter 3mm, a side longitudinal opening, opening is wide to be 1mm, the lower end of puncture track 4 is the nahlock part, and the nahlock diameter is 14mm, and thick is 3mm, it is the circular hole of 2.1mm that there is a diameter at nahlock off-center 3mm place, and bolt flexibly connects with protractor 2 by will puncture track 4 of this hole.

With reference to Fig. 1, bolt adopts stainless steel material to make, and it is long to be 7mm, and diameter is 2mm, and bolt has puncture nahlock hole, track 4 lower end to enter, the internal thread hole of throughput hornwork 2, sliding rail 3, and the track 4 that will puncture flexibly connects with protractor 2.

Claims

1. a PCN is with accurate positioning action frame, a lateral central point that it is characterized in that the sliding rail (3) that is slidingly connected with scale (1) is identical with the center of circle of protractor (2), fixedly connected with the one side of protractor (2) in this side, the another side of protractor (2) flexibly connects with puncture track (4).

2. press the described PCN of claim 1 with accurate positioning action frame, it is characterized in that its pipe part of described puncture track (4) vertically has an opening.