Adjustable guiding puncture instrument
Technical field
This utility model relates to medical apparatus and instruments, especially relates to a kind of adjustable guiding puncture instrument.
Background technology
In treatment neoplastic process, need to carry out aspiration biopsy or ablation to swollen thing.Puncture needle or ablation needle insert in tumor, so Needle localization is even more important accurately by this process need.Traditional method relies on operator's experience to insert puncture needle or ablation needle.This blind defect of wearing has: 1, locate inaccurate, needs repeatedly to regulate inserting needle path; 2, repeated multiple times operation easy damaged normal structure organ; 3, the operating time is long.
Utility model content
The purpose of this utility model overcomes the deficiencies in the prior art, provides the adjustable guiding puncture instrument of a kind of registration, simple operation.
This utility model is achieved through the following technical solutions: adjustable guiding puncture instrument, comprises housing that top margin is straight line, level indicator mechanism and Needle localization mechanism, level indicator organization establishes is in housing, it comprises the first gear, is provided with the adjusting knob of the second gear, tooth sector and is fixed on the horizontal location device on the first gear, tooth sector to be arranged between the first gear, the second gear and respectively with the first gear, the second gears meshing, described housing is provided with the graduated disc indicating circumferential scale, first gear is laid in the circle of graduated disc, described first gear is provided with the first gear rotation and on graduated disc, indicates the angle indicator of angle, and angle indicator is vertical with described horizontal location device to be arranged, described Needle localization mechanism comprises fastener, locating slot and location-plate, described locating slot is opened in the middle part of housing straight line top margin place plane, described fastener comprises support member and locating part, support member comprises vertical section and horizontal segment, vertical section is fixed on locating slot housing top margin institute on one side in the plane, horizontal segment to extend and parallel with housing top margin place plane from vertical section, horizontal segment offers chute, described locating part assigns in chute and also and between support member forms hole, also comprise for locating part being connected with support member and making locating part slide the bolt of adjustment apertures diameter along chute, described location-plate is vertically set on the end of housing top margin.
Tooth sector respectively with the first gear, the second gears meshing, when can make rotation adjusting knob, drive the second gear to drive the first pinion rotation through tooth sector, make angle indicator indicate angle on graduated disc; Needle localization mechanism is used for the location of puncture needle or ablation needle; Locating slot can make puncture needle or ablation needle linearly track slide; Support member, locating part and bolt, can make pore size controlled, adapts to puncture needle or the ablation needle of various model; Location-plate positions for the body surface near position of this device and human body being punctured.
Described horizontal location device is the transparent cylinder that inside has sap cavity, liquid has been sealed up for safekeeping in sap cavity, the capacity of liquid is 1/3rd of sap cavity volume, the first mark line and the second mark line is respectively arranged with at sap cavity two ends, when cylinder length direction is parallel to horizontal plane, the first mark line is concordant with liquid level with the line of the second mark line.
Described horizontal location device comprises pull rope and pendant, one end of pull rope is fixed on the position of angle indicator place first gear, the other end is connected with pendant, the first gear is also provided with when pull rope is in the 3rd mark line aimed at perpendicular to pendant during horizontal plane.
The utility model has the advantages that: the simple operation of this device, can accurately localised puncture angle and path, improve puncture precision, shorten the operating time, reduce damaging normal tissue.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment 1;
Fig. 2 is the structural representation of this utility model embodiment 1 housing forward end;
Fig. 3 is the partial enlarged drawing of this utility model embodiment 1U type fastener;
Fig. 4 is the structural representation of this utility model embodiment 1 housing rear end;
Fig. 5 is the structural representation of this utility model embodiment 1 transparent cylinder;
Fig. 6 is this utility model embodiment 1 patient Chest X-rays figure;
Fig. 7 is the structural representation of this utility model embodiment 2.
Reference numeral implication in figure: 1, housing; 11, top margin; 2, the first gear; 3, the second gear; 4, tooth sector; 5, graduated disc; 6, angle indicator; 7, U-shaped fastener; 71, support member; 711, vertical section; 712, horizontal segment; 7121, chute; 72, locating part; 8, locating slot; 9, location-plate; 10, bolt; 12, transparent cylinder; 13, hands handle; A, the first mark line; B, the second mark line; C, pendant; D, the 3rd mark line; E, pull rope; α, angle; β, angle; θ, angle; A, B, C, D, E, O, F, G, H are respectively labelling a little.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, content of the present utility model is described in further details.
Embodiment 1
Consulting Fig. 1 to Fig. 6, is the adjustable guiding puncture instrument of one, comprises housing 1 that top margin 11 is straight line, level indicator mechanism and Needle localization mechanism, level indicator organization establishes is in housing 1, it horizontal location device comprising the first gear 2, be provided with the adjusting knob of the second gear 3, tooth sector 4 and be fixed on the first gear 2, tooth sector 4 is arranged between the first gear 2, second gear 3 and also engages with the first gear 2, second gear 3 respectively, housing 1 being provided with graduated disc 5, first gear 2 indicating circumferential scale is laid in the circle of graduated disc 5, and the first gear 2 is provided with and rotates with the first gear 2 and on graduated disc 5, to indicate the angle indicator 6 of angle, and angle indicator 6 is vertical with horizontal location device to be arranged, Needle localization mechanism comprises U-shaped fastener 7, locating slot 8 and location-plate 9, locating slot 8 is opened in the middle part of housing 1 straight line top margin 11 place plane, U-shaped fastener 7 comprises support member 71 and locating part 72, support member 71 comprises vertical section 711 and horizontal segment 712, vertical section 711 is fixed on locating slot 8 housing 1 top margin 11 institute on one side in the plane, horizontal segment 712 to extend and parallel with housing 1 top margin 11 place plane from vertical section 711, horizontal segment 712 offers chute 7121, locating part 72 assigns in chute 7121 and also and between support member 71 forms hole, also comprise for locating part 72 being connected with support member 71 and making locating part 72 slide the bolt 10 of adjustment apertures diameter along chute 7121, location-plate 9 is vertically set on the end of housing 1 top margin 11, with location-plate 9 housing 1 be at one end anterior, be provided with the handle 13 held for staff at the rear portion of housing 1, the fastener of the present embodiment adopts U-shaped fastener 7.
Tooth sector 4 engages with the first gear 2, second gear 3 respectively, when can make rotation adjusting knob, drives the second gear 3 to drive the first gear 2 to rotate through tooth sector 4, makes angle indicator 6 indicate angle on graduated disc 5; Needle localization mechanism is used for the location of puncture needle or ablation needle; Locating slot 8 can make puncture needle or ablation needle linearly track slide; Support member 71, locating part 72 and bolt 10, can make pore size controlled, adapts to puncture needle or the ablation needle of various model; Location-plate 9 positions for the body surface near position of this device and human body being punctured.
In the present embodiment, blank arrowhead represents the angle direction of angle indicator 6, horizontal location device is the transparent cylinder 12 that inside has sap cavity, liquid has been sealed up for safekeeping in sap cavity, the capacity of liquid is 1/3rd of sap cavity volume, is respectively arranged with the first mark line a and the second mark line b, when cylinder length direction is parallel to horizontal plane at sap cavity two ends, first mark line a is concordant with liquid level with the line of the second mark line b, angle indicator 6 and horizontal line.
It is as follows according to demonstration that this design factors is measured:
At a certain measuring state, horizontal location device settles out, and baseline O and extended line OAEC thereof remains vertical with upper and lower two limits of this device (i.e. deckle and base), and angle indicator 6 and extended line 6AB thereof and transparent cylinder 12 remain plumbness;
Straight line DBC is horizontal line;
If the angle of baseline O and angle indicator 6 is ∠ α, be the angle that graduated disc 5 indicates;
When being transferred to parallel with horizontal line by transparent cylinder 12, the extended line of angle indicator 6 is and horizontal line that form right angle triangle ABC and right angled triangle DEC is in right angled triangle ABC and right angled triangle DEC thus
∠ACB=∠DCE
So ∠ β=∠ θ
Again because ∠ α=∠ β
So ∠ α=∠ θ
Therefore prove to obtain: when being transferred to parallel with horizontal line by transparent cylinder 12, the angle of angle indicator 6 indication equals this device and horizontal angle.
During operation process, first allow patient lie low and carry out Chest X-rays on operating-table, show that observable goes out the Chest X-rays figure of tumor thing, and carry out angle analysis, rib interval and the angle between tumor thing point F, horizontal line HF are ∠ GFH, generally puncture between rib, if manually carried out, may deviation be there is, cause location inaccurate, need again to puncture, patient body also can be caused to damage.Utilize this device, find out the position and angle that can carry out puncturing from Chest X-rays figure.First turn adjusting knob, making the second gear 3 engage tooth sector 4 drives the first gear 2 to rotate, the angle making angle indicator 6 be transferred to Chest X-rays figure to calculate, again by skin surface that the location-plate 9 of this device punctures near entrance against patient, the inclination angle of device is adjusted, makes transparent cylinder 12 parallel with horizontal line.Then, puncture needle or ablation needle are advanced along locating slot 8, and the space be stuck between locating part 72 and support member 71, according to the specification of puncture needle or ablation needle, screw or unclamp bolt 10, make space be applicable to puncture needle or the ablation needle of various model, thus its stable inclination angle puncture is entered in human body, then carry out other operations.
Embodiment 2
Consult Fig. 7, for the adjustable guiding puncture instrument of another kind, horizontal location device comprises pull rope e and pendant c, one end of pull rope e is fixed on the position of angle indicator 6 place first gear 2, the other end is connected with pendant c, the first gear 2 is also provided with when pull rope e is positioned at the 3rd mark line d aimed at perpendicular to pendant c during horizontal plane.When pull rope e vertical water horizontal line and when aiming at the 3rd mark line d, angle indicator 6 and horizontal line.
Above-listed detailed description is illustrating for this utility model possible embodiments, and this embodiment is also not used to limit the scope of the claims of the present utility model, does not allly depart from the equivalence that this utility model does and implements or change, and all should be contained in the scope of the claims of this case.