CN2568138Y - Polar-coordinate fixed-point pilot for craniocarebral puncture - Google Patents

Abstract

The utility model discloses a polar-coordinate fixed-point guide instrument for craniocerebral paracentesis, which is composed of a baseline set rule 1, a semicircular angular distribution ruler 2, a fixed-point lock ruler 3 and a puncture guide semicircular pipe 4, wherein, the baseline set rule 1 is a straight rule of which the centre is provided with a circular hole which is marked as an 'O 'point and divided the baseline set rule 1 into two segments, wherein, one section is an OM segment. The upper side of the baseline set rule 1 is provided with the semicircular angular distribution ruler 2 of which both ends are fixed with both ends of the baseline set rule 1 in the same plane. The utility model adopts a three-dimensional space, and has the advantages of reasonable structure, fast operation and accurate positioning. The polar-coordinate fixed-point guide instrument for craniocerebral paracentesis is convenient to puncture and can enhance operation efficiency. The polar-coordinate fixed-point guide instrument for craniocerebral paracentesis is especially suitable for a hospital of a base course.

Description

Cranium brain puncture polar coordinate fixed point guide instrument

Technical field

This utility model relates to a kind of medical apparatus and instruments, and specifically a kind of cranium brain puncture polar coordinate fixed point guide instrument that is used for the puncture of cranium brain is applicable to basic hospital.

Background technology

Because the application of advanced medical apparatus and instruments such as CT and MRI, make cranium brain puncture technique bring very big convenience, and success rate also improves greatly, therefore, all can adopt the puncture operation for cranium disease of brain such as cerebral thrombosis, intracranial abscess, brain tumors, particularly for the acute cerebral hemorrhage patient, by boring that the cranium puncture attracts intracranial hematoma is one of the most direct effective method, but it is very important to make an accurate selection of point of puncture, in the good hospital of condition, existing advanced instrument, but price is too high, is not suitable for basic hospital.Carry out cranium brain puncture operation key step commonly used at basic hospital, the one, make an accurate selection of point of puncture earlier, the 2nd, determine the puncture direction and the degree of depth.At basic hospital, condition is relatively poor, generally select the method for point of puncture to be: by survey tools such as tape measure, ruler, set squares, on the CT film, measure the position of focus earlier, then in labelling location, corresponding cranium brain body surface place, as the otch of point of puncture or operation of opening cranium, and then determine penetration depth and direction by the focus degree of depth that the CT sheet is measured.This localization method exists than mistake, operates easy inadequately.

Summary of the invention

Technical problem to be solved in the utility model is that at basic hospital, in line with the spirit of cutting down expenses, employing polar coordinate location utilizes guide pipe fixed point, directed, depthkeeping degree, with further raising positional accuracy, improves operative speed and puncture quality.

For solving above technical problem, the technical scheme that this utility model adopted is: this cranium brain puncture polar coordinate fixed point guide instrument, by the baseline positioning rule, chi is divided at the semicircular ring angle, fixed point locking chi, puncture guiding semicircle pipe constitutes, the baseline positioning rule is a ruler, a setting circle hole is established at the center, be designated as " O " point, the baseline positioning rule is divided into two-stage nitration, one section is the OM section, baseline positioning rule upside is established the semicircular ring angle and is divided chi, the semicircular ring angle divides the two ends of chi and the two ends of baseline positioning rule to be fixed as an integral body, and in a plane, the semicircular ring angle divides the ring inboard of chi to be provided with groove, the plane of fixed point locking chi divides the plane of chi vertical with the semicircular ring angle, prong is established at two ends, and the prong of an end is stuck on " O " point of baseline positioning rule, and fixes with stud shaft, establish miniature pellet shot from a slingshot in the prong of the other end, be stuck in the semicircular ring angle and divide on the chi, the travel incognito pellet shot from a slingshot withstands on the semicircular ring angle and divides on the groove of chi inboard, and puncture guiding semicircle pipe clamp is on fixed point locking chi.This utility model is also implemented by following measure: be carved with distance scale on the baseline positioning rule OM section, its length is 8-15cm, establishes the button that slides on the OM section, and the distance from the O point to the button that slides is consistent with the length of patient's earhole upper limb face corner of the eyes outside eye; Fixed point locking chi can rotate around " O " point, when turning to fixed point locking chi when being pressed in the focus center, fixed point locking chi is under the effect of travel incognito pellet shot from a slingshot, locking voluntarily, also be provided with distance scale on the fixed point locking chi, the effective fixation clamp of puncture guiding semicircle is clipped on the fixed point locking chi, fixation clamp can slide along fixed point locking chi, when sliding into the focus center, can lock voluntarily, because there is certain distance at the center of puncture guiding semicircle pipe with fixed point locking chi, so also will add a drift angle corrects, it corrects angle value is to pass the radius of puncture guiding semicircle tube hub and the angle between the fixed point locking chi centrage; Also establish scale on the guiding that the punctures semicircle pipe outer wall, the labelling paracentesis depth, puncture guiding semicircle pipe can slide up and down along the semicircle folder mouth of fixation clamp, and up to withstanding the head point of puncture, this moment can be along inserting needle puncture in the puncture guiding semicircle pipe.When using this utility model, at first measure the air line distance of maximum hemorrhage aspect hematoma center on the CT sheet to the skull outside, be converted into the human body physical length with this fixed proportion relation then, can draw the insertion depth that bores cranium rear sleeve pin, on dip stick, directly read the actual range of hematoma and earhole, guide instrument " O " point is placed on the earhole shadow, bottom and OM line overlap, rotate fixed point locking chi, rotational angle is identical with angle on the CT sheet, and its centrage is overlapped with the line of centres of earhole to hematoma, observe its hematoma position, and with the human body physical length after converting, the semicircle pipe human body physical length position that slips of leading of will puncture is carried out the drift angle again and is corrected, be herein and bore the cranium point, bore cranium and attract trocar insertion depth, the maximum aspect hematoma of hematoma center is to the distance in the skull outside on the CT sheet from recording, and relation is calculated in proportion, the guiding that will puncture again semicircle pipe glides, prop up point of puncture, mark paracentesis depth, can be along inserting needle puncture in the puncture guiding semicircle pipe.

The beneficial effects of the utility model are, compare with the various dip sticks of present use, more, adopted three dimensions near the design of head shape, rational in infrastructure, swift to operate, accurate positioning, be convenient to puncture, improved operation efficient, be specially adapted to basic hospital.

Description of drawings

Fig. 1 is this utility model structure schematic top plan view.

Fig. 2 is that this utility model is along the A-A cross-sectional schematic.

Make this utility model with reference to accompanying drawing 1,2.This cranium brain puncture polar coordinate fixed point guide instrument, by baseline positioning rule 1, chi 2 is divided at the semicircular ring angle, fixed point locking chi 3, puncture guiding semicircle pipe 4 constitutes, baseline positioning rule 1 is a ruler, a setting circle hole is established at the center, be designated as " O " point, baseline positioning rule 1 is divided into two-stage nitration, one section is the OM section, baseline positioning rule 1 upside is established the semicircular ring angle and is divided chi 2, the semicircular ring angle divides the two ends of chi 2 and the two ends of baseline positioning rule 1 to be fixed as an integral body, and in a plane, the semicircular ring angle divides the ring inboard of chi 2 to be provided with groove 5, and the plane of fixed point locking chi 3 divides the plane of chi 2 vertical with the semicircular ring angle, and prong is established at two ends, the prong of one end is stuck on baseline positioning rule 1 " O " point, and fixing with stud shaft 6, establish miniature pellet shot from a slingshot 7 in the prong of the other end, be stuck in the semicircular ring angle and divide on the chi 2, miniature pellet shot from a slingshot 7 withstands on the semicircular ring angle and divides on the groove 5 of chi 2 inboards, and puncture guiding semicircle pipe 4 is stuck on the fixed point locking chi 3.This utility model is also implemented by following measure: be carved with distance scale on the OM section of baseline positioning rule 1, its length is 8-15cm, establishes the button 8 that slides on the OM section, and the distance from the O point to the button 8 that slides is consistent with the length of patient's earhole upper limb face corner of the eyes outside eye; When fixed point locking chi 3 is pressed in the focus center, fixed point locking chi 3 is under the effect of miniature pellet shot from a slingshot 7, latched position voluntarily, also be provided with distance scale on the fixed point locking chi 3, puncture guiding semicircle pipe 4 usefulness fixation clamps 9 are clipped on the fixed point locking chi 3, fixation clamp 9 can slide along fixed point locking chi 3, when sliding into the focus center, can lock voluntarily, because there is certain distance at the center of puncture guiding semicircle pipe 4 with fixed point locking chi 3, so also will add the drift angle corrects, it corrects angle value is the angle that passes between puncture guiding semicircle pipe 4 radius centered and fixed point locking chi 3 centrages; Also establish scale on the guiding that punctures semicircle pipe 4 outer walls, the labelling paracentesis depth, puncture guiding semicircle pipe 4 can slide up and down along the semicircle folder mouth of fixation clamp 9, and up to withstanding the head point of puncture, can puncture this moment along inserting needle in the puncture guiding semicircle pipe 4.

Claims (4)

1, a kind of cranium brain puncture polar coordinate fixed point guide instrument, by baseline positioning rule (1), chi (2) is divided at the semicircular ring angle, fixed point locking chi (3), puncture guiding semicircle pipe (4) constitutes, it is characterized in that baseline positioning rule (1) is a ruler, a setting circle hole is established at the center, be designated as " O " point, baseline positioning rule (1) is divided into two-stage nitration, one section is the OM section, baseline positioning rule (1) upside is established the semicircular ring angle and is divided chi (2), the semicircular ring angle divides the two ends of chi (2) and the two ends of baseline positioning rule (1) to be fixed as an integral body, and in a plane, the semicircular ring angle divides the ring inboard of chi (2) to be provided with groove (5), the plane of fixed point locking chi (3) divides the plane of chi (2) vertical with the semicircular ring angle, prong is established at two ends, the prong of one end is stuck on " O " point of baseline positioning rule (1), and it is fixing with stud shaft (6), establish miniature pellet shot from a slingshot (7) in the prong of the other end, being stuck in the semicircular ring angle divides on the chi (2), miniature pellet shot from a slingshot (7) withstands on the semicircular ring angle and divides on the inboard groove (5) of chi (2), and puncture guiding semicircle pipe (4) is stuck on the fixed point locking chi (3).

2, cranium brain puncture polar coordinate fixed point guide instrument according to claim 1, it is characterized in that being carved with distance scale on the OM section of baseline positioning rule (1), its length is 8-15cm, establish the button (8) that slides on the OM section, the distance from the O point to the button (8) that slides is consistent with the length of patient's earhole upper limb face corner of the eyes outside eye.

3, cranium brain puncture polar coordinate fixed point guide instrument according to claim 1, it is characterized in that also being provided with distance scale on the fixed point locking chi (3), puncture guiding semicircle pipe (4) is clipped on the fixed point locking chi (3) with fixation clamp (9), and fixation clamp (9) can slide along fixed point locking chi (3).

4, according to claim 1 or 3 described cranium brain puncture polar coordinate fixed point guide instruments, also be provided with scale on guiding semicircle pipe (4) outer wall that it is characterized in that puncturing, puncture guiding semicircle pipe (4) can slide up and down along the semicircle folder mouth of fixation clamp (9).

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