CN104083220A

CN104083220A - Craniotomy positioning device

Info

Publication number: CN104083220A
Application number: CN201410378632.1A
Authority: CN
Inventors: 罗登立
Original assignee: PEOPLE'S HOSPITAL OF MACHENG CITY
Current assignee: PEOPLE'S HOSPITAL OF MACHENG CITY
Priority date: 2014-08-01
Filing date: 2014-08-01
Publication date: 2014-10-08
Anticipated expiration: 2034-08-01
Also published as: CN104083220B

Abstract

The invention provides a craniotomy positioning device. The craniotomy positioning device at least comprises a fixing mechanism and a positioning mechanism, wherein the fixing mechanism comprises a square bottom frame with a connecting plate, a U-shaped support I formed by a vertical rod a, a vertical rod d and a horizontal rod, and a U-shaped support II formed by a vertical rod b, a vertical rod c and a horizontal rod, the ends of the each U-shaped supports are installed on a connecting plate of the square bottom frame in a crisscross mode through a screw rod penetrating through a threaded through hole, and the square bottom frame, the vertical rod a, the vertical rod b, the vertical rod c and the vertical rod d are respectively provided with measurement scales; the positioning mechanism is composed of three measurement rods which are the U-shaped horizontal plane measurement rod installed on the vertical rod a, the vertical rod b and the vertical rod c, the U-shaped coronal plane measurement rod installed on the opposite sides of the square bottom frame, and the L-shaped sagittal plane measurement rod installed on one of the other opposite sides of the square bottom frame; a standard line is formed in a slider in an engraved mode; the positioning device is simple in structure, small in size, convenient to use, low in cost and capable of rapidly and accurately positioning a head nidus, operation time is shortened, and the operation success rate is improved.

Description

One is driven cranium positioner

Technical field

The present invention relates to technical field of medical instruments, relate to particularly a kind of on scalp, trace lesions position and then definite operative approach while carrying out operation of opening cranium drive cranium positioner.

Background technology

In the time carrying out operation of opening cranium, first to carry out CT or the definite focus of MRI scanning, then carry out body surface location according to the position of focus in conjunction with dissecting location and body surface symbol, and then definite operative incision, therefore have relatively high expectations to holding the surgical medical knowledge of cutter, require to hold cutter surgeon and not only can accurately understand CT sheet/MRI sheet, and can skillfully grasp location body surface symbol, otherwise in operation, easily occur incision site skew, the otch that makes focus not expose completely or to perform the operation is excessive.

For accurately determining lesions position, need to be by some head focus positioners, prior art is as the head positioning rule (patent No.: 200420024660), (the patent No.: 201320120883), only can carry out running fix in two dimensional surface of locator for operation for department of cerebral surgery; Focus positioning rule for vein cranium ultrasonic therapy (patent No.: 200720090983), although realize three-dimensional localization, because when location in, cannot fixing head thereby have accurate problem of location; Chinese patent net discloses a kind of head stereotaxic apparatus (patent No.: 200710063001), comprise support, head fixing device, positioner and sting device, this instrument can be realized 3 D stereo location, but apparatus structure complexity, volume is large, uses inconvenience and cost high.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art and provide one to drive cranium positioner, this device can simply be fixed on patient's head realize to focus fast, three-dimensional localization accurately.

Realize that the object of the invention takes technical scheme be:

One is driven cranium positioner, at least comprise fixed mechanism and detent mechanism, it is characterized in that: fixed mechanism comprises square underframe, U-shaped support I and U-shaped support II, square underframe is provided with the connecting plate of four threaded through hole, U-shaped support I comprises two vertical rod a with d and is connected vertical rod a, the horizon bar of d, U-shaped support II comprises two vertical rod b with c and is connected vertical rod b, the horizon bar of c, on the end of U-shaped support I and U-shaped support II and two horizon bars, be equipped with tapped through hole, U-shaped support I is passed through to be connected through the screw rod of corresponding tapped through hole and the connecting plate of square underframe with the end of U-shaped support II, two horizon bars are cross type and connect through the screw rod of tapped through hole by cross point place, detent mechanism is made up of three measuring sticks, be respectively level measurement bar, coronalplane measuring stick and sagittal plane measuring stick, wherein level measurement bar takes the shape of the letter U, be parallel to square underframe place plane, be arranged on vertical rod a, b, c is upper and slide up and down on vertical rod, coronalplane measuring stick takes the shape of the letter U, be parallel to U-shaped support II place plane, be arranged on a pair of limit of square underframe and thereon and slide, sagittal plane measuring stick is L-shaped, be parallel to U-shaped support I place plane, be arranged on another opposite side of square underframe and horizontally slip thereon, on vertical rod a, b, c, d and square underframe, be all carved with Measurement scales.

On square underframe and vertical rod a, b, c, d, be equipped with chute, measuring stick is arranged on fixed mechanism and is free to slide along chute by slide block or sliding sleeve.

On described slide block or sliding sleeve, be carved with normal line.

The minimum calibration of described Measurement scales is 1mm.

Screw rod two ends are equipped with spacing part, and described spacing part is nut, split pin or R type pin.

Described screw rod is provided with protective sleeve on one end of square underframe inner side.

As shown from the above technical solution, positioner provided by the invention comprises the fixed mechanism being made up of the square underframe with connecting plate, two U-shaped supports and the detent mechanism being made up of U-shaped level measurement bar, U-shaped coronalplane measuring stick and L shaped sagittal plane measuring stick, wherein U-shaped support is connected with the connecting plate on square underframe by the spacing part at screw rod and screw rod two ends, screw rod screw-in length can change, and on vertical rod a, b, c, d and square underframe, is all carved with Measurement scales; Detent mechanism is arranged on fixed mechanism by slide block or sliding sleeve, level measurement bar can slide up and down on corresponding fixed mechanism, coronalplane measuring stick horizontally slips on corresponding fixed mechanism, sagittal plane measuring stick can slide front and back on corresponding fixed mechanism, on slide block or sliding sleeve, is carved with normal line.

Compared with prior art, beneficial effect of the present invention is:

Said apparatus can be applicable to the head of different sizes and be fastened on patient's head by adjusting screw(rod) screw-in length, the guarantee positioning accurate accuracy thereby guarantee location timer and patient's head can not relatively move; Screw rod is provided with protective sleeve and can protects patient skin to avoid screw rod scratch, increases this positioner patient's in the time of application comfort level simultaneously; It is closely fixing that thereby spacing part can clamp fixture by fixture.

Detent mechanism can be free to slide on fixed mechanism, and level measurement bar, coronalplane measuring stick, sagittal plane measuring stick can be determined respectively the concrete orientation of focus on transverse section, coronalplane, sagittal plane, thereby realizes the three-dimensional localization to focus; The Measurement scales being carved with on fixed mechanism, and the normal line being carved with on slide block or sliding sleeve can be guaranteed accurate positioning, convenient and precision is higher, can reach 1mm.

Positioning device structure provided by the invention is simple, and volume is little, easy to use and with low cost, use said apparatus can be fast, accurately head focus is positioned, shorten operating time, improve the success rate of operation.

Brief description of the drawings

Fig. 1 is a kind of overall structure schematic diagram of driving cranium positioner.

Fig. 2 is that one is opened cranium positioner AA to sectional view.

Wherein, the square underframe of 1-, 2-U shape support I, 3-U shape support II, 4-level measurement bar, 5-coronalplane measuring stick, 6-sagittal plane measuring stick, 7-slide block, 8-screw rod, the spacing part of 9-, 10-connecting plate, 11-screw, 12-protective sleeve.

Detailed description of the invention

Below in conjunction with specific embodiment and accompanying drawing, the present invention is illustrated in detail.

In the present embodiment, square underframe 1 length is 20 ㎝, and wide is 18 ㎝, and U-shaped support four vertical rod a, b, c, d are highly 13 ㎝, and connecting plate 10 width are identical with the measuring stick width being attached thereto.

One is as shown in Figure 1 driven cranium positioner overall structure schematic diagram, this positioner comprises fixed mechanism and detent mechanism, fixed mechanism comprises square underframe 1, U-shaped support I 2 and U-shaped support II 3, square underframe is provided with the connecting plate 10 of four threaded through hole, on the end of U-shaped support I and U-shaped support II and two horizon bars, be equipped with tapped through hole, U-shaped support I is connected with the connecting plate of square underframe by the screw rod 8 through tapped through hole with the end of U-shaped support II; U-shaped support I and connecting plate form two junction point A and D, and A, D point is the mid point of the corresponding sides of square underframe; U-shaped support II 3 forms two junction point B and C with connecting plate 10, and B, C point is 9cm to the distance on limit, A point place; A, B, C, D point place straight-bar are designated as respectively vertical rod a, vertical rod b, vertical rod c, vertical rod d, on square underframe and vertical rod a, b, c, d, be equipped with chute, two U-shaped support decussations are installed on the connecting plate of square underframe and form junction point E, and two horizon bars connect through the screw rod of tapped through hole by cross point place; Spacing part 9 is all equipped with at screw rod two ends, uses R type pin as spacing part in the present embodiment, and R type pin card is stretched out the two ends of fixed mechanism and fits tightly with fixed mechanism at screw rod; On square underframe 1 and vertical rod a, b, c, d, be equipped with Measurement scales, the scale moving by measuring stick carries out three-dimensional localization to focus, can ensure the movement of measuring stick simultaneously in one plane.

Detent mechanism is made up of three measuring sticks, be respectively level measurement bar 4, coronalplane measuring stick 5 and sagittal plane measuring stick 6, measuring stick is connected with slide block 7 by two screws 11, measuring stick is connected with fixed mechanism and is moved freely on chute by slide block, wherein U-shaped level measurement bar 4 levels are arranged on vertical rod a, b, c is upper, can on vertical rod, slide up and down and measure transverse section, focus place; U-shaped coronalplane measuring stick 5 is vertically mounted on a pair of limit of square underframe, can be on the corresponding opposite side of square underframe before and after slip measurement focus place coronalplane, the connected mode of coronalplane measuring stick, slide block and underframe is as shown in Figure 2; L shaped sagittal plane measuring stick 6 is arranged on limit, square underframe A point place, can be on limit, square underframe A point place slip measurement focus place, left and right sagittal plane, converse the distance of focus to otch by mobile scale; On the slide block of connection measuring stick and fixed mechanism, be carved with normal line.

In practical operation, the length of rotary screw 8 adjusting screw(rod)s extension inside square underframe, to adapt to patient's head size, clamps R type pin, and screw rod extension is provided with protective sleeve 12, and protection patient skin is in order to avoid scratched by screw rod, this fixture is fixed on patient's head by four some A, B, C, E, wherein B, C point lays respectively at the porus acusticus externus of head both sides, A point is positioned at forehead, E point is positioned at top, 3 place planes of porus acusticus externus and forehead are through canthomeatal line, baseline when guaranteeing with CT or MRI scanning, in same plane, is lighted decision plane effect through three of porus acusticus externus and forehead, and the effect of device being fixed on to head is lighted at one of top, location desired data provides by measurement and the conversion of the CT sheet/MRI sheet data to focus scanning by tracing system, sliding up and down level measurement bar to normal line on slide block according to the data that provide aligns with the graduation mark of provided data, determine the distance of focus and datum plane, align with the graduation mark of provided data according to slip coronalplane measuring stick before and after the data that provide to normal line on slide block, position at frontal temporal part, determine the incision site of operation, align with the graduation mark of provided data according to the data that provide sagittal plane measuring stick to the normal line on slide block that horizontally slips, determine the degree of depth of operation.

Claims

1. drive cranium positioner for one kind, at least comprise fixed mechanism and detent mechanism, it is characterized in that: fixed mechanism comprises square underframe, U-shaped support I and U-shaped support II, square underframe is provided with the connecting plate of four threaded through hole, U-shaped support I comprises two vertical rod a with d and is connected vertical rod a, the horizon bar of d, U-shaped support II comprises two vertical rod b with c and is connected vertical rod b, the horizon bar of c, on the end of U-shaped support I and U-shaped support II and two horizon bars, be equipped with tapped through hole, U-shaped support I is passed through to be connected through the screw rod of corresponding tapped through hole and the connecting plate of square underframe with the end of U-shaped support II, two horizon bars are cross type and connect through the screw rod of tapped through hole by cross point place, detent mechanism is made up of three measuring sticks, be respectively level measurement bar, coronalplane measuring stick and sagittal plane measuring stick, wherein level measurement bar takes the shape of the letter U, be parallel to square underframe place plane, be arranged on vertical rod a, b, c is upper and slide up and down on vertical rod, coronalplane measuring stick takes the shape of the letter U, be parallel to U-shaped support II place plane, be arranged on a pair of limit of square underframe and thereon and slide, sagittal plane measuring stick is L-shaped, be parallel to U-shaped support I place plane, be arranged on another opposite side of square underframe and horizontally slip thereon, on vertical rod a, b, c, d and square underframe, be all carved with Measurement scales.

2. drive according to claim 1 cranium positioner, it is characterized in that: on square underframe and vertical rod a, b, c, d, be equipped with chute, measuring stick is arranged on fixed mechanism and is free to slide along chute by slide block or sliding sleeve.

3. drive according to claim 2 cranium positioner, it is characterized in that: on described slide block or sliding sleeve, be carved with normal line.

4. drive according to claim 1 cranium positioner, it is characterized in that: the minimum calibration of described Measurement scales is 1mm.

5. drive according to claim 1 cranium positioner, it is characterized in that: screw rod two ends are equipped with spacing part, described spacing part is nut, split pin or R type pin.

6. drive according to claim 1 cranium positioner, it is characterized in that: described screw rod is provided with protective sleeve on one end of square underframe inner side.