CN204744343U

CN204744343U - Percutaneous centrum aspiration biopsy needle

Info

Publication number: CN204744343U
Application number: CN201520445087.3U
Authority: CN
Inventors: 卢山
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-06-25
Filing date: 2015-06-25
Publication date: 2015-11-11
Anticipated expiration: 2025-06-25

Abstract

The utility model relates to a percutaneous centrum aspiration biopsy needle, can alleviate patient's misery, improve the percutaneous centrum aspiration biopsy needle of success rate, but design the biopsy needle front end become the triangle ARC structure of the rotatory clear -cut margin of axis of ordinates direction, make its rotation of cutting bone trabecula when rotatory inserting needle, it keeps in the needle tubing to the place ahead to make the bone trabecula tissue can do not not pressed, screw cap through the afterbody after getting into the completion makes the front end triangle cambered surface axis of ordinates rotate 90 further across cuttings and block intraductal tissue front end, to make the tissue stay intraductal taking out the in -process. The utility model discloses the advantage lies in solving the problem that is difficult for getting the tissue when advancing menstruation skin centrum aspiration biopsy art to osteoporosis patient and centrum tissue pathological change person, does this operation to general patient and also can reach better effect.

Description

Percutaneous vertebral body puncture biopsy needle

Technical field

This utility model belongs to medical instruments field, specifically relates to the percutaneous vertebral body puncture biopsy needle that spinal column Vertebral body in bone surgery gets biopsy procedure.

Background technology

In hospital orthopedics operation, percutaneous vertebral body percutaneous biopsy is a kind of common surgical at present, patient feels uncomfortable and does to hospital image section the tentative diagnosis that coherence check makes the state of an illness, but image department can only find lesion locations mostly, but definite diagnosis cannot be done, so just need to take out pathological tissues to determine it is which kind of pathological changes to hospital pathology department, often need to carry out getting biopsy procedure to bone surgery room when finding pathological changes in spinal vertebral, for reducing operation wound scope, importantly obtain Vertebral body tissue by percutaneous vertebral body percutaneous biopsy now.

Existing vertebral body biopsy needle ordinary circumstance successfully can get pathological tissues, the most frequently used is have little tooth to cut by an outside needle tubing front end, the flexible teeth groove in inner biopsy needle front end enters the mode of carrying out part cutting extruding after vertebral body arrives target location again and obtains tissue, because the little tooth of outer tube is very little, add the cutting effect that the extruding and being difficult to of practical operation has reached completely, in addition its cutting effect is completed by outer tube effect, and inner biopsy needle is without dissection.Often there will be the situation of getting less than tissue in practical operation, through investigation and analysis, have the patient of pathological changes to be difficult to success obtain biopsy by this kind of method to old people and osteoporotic patient and vertebral body, youngster and the harder patient of sclerotin are easier to get.

By analysis, the inner sclerotin primary structure of people's spinal vertebral is made up of bone trabecula, similar cellular, old people generally can have osteoporosis, bone trabecula tails off, Nidus Vespae is in loose shape, between bone trabecula, gap increases, the words vertebral body tissue of pathological changes is had to have destruction, in the process of puncture needle inserting needle, because needle tubing is tiny, loose bone trabecula sclerotin (or tissue of pathological changes) can be extruded forward and needle tubing cannot be entered, again needle tubing is extracted rear needle tubing empty, just occur getting the situation less than tissue.

Utility model content

For the above-mentioned deficiency of prior art, this utility model provides one can alleviate patient's misery, improves the percutaneous vertebral body puncture biopsy needle of success rate.

The technical scheme that this utility model provides is:

A kind of percutaneous vertebral body puncture biopsy needle, is characterized in that: be made up of assembled tube A, interior pin B, fixed disk C and turncap D; Wherein assembled tube A has the first arc-like sheet of strip cut and three the second arc-like sheets around forming by a lower end; The top of interior pin B is a cogged cylindrical carousel of band, is provided with the first solid needle, is provided with a right angle arcuate sheet cutter at the afterbody of the first solid needle at the center of cylindrical carousel; Fixed disk C is a solid cylinder, its lower end symmetry have two draw-in groove projections, there is a central angle to be the arc groove of 30 ° on the top of fixed disk C, first circular hole got through is provided with at the center of fixed disk C, also be provided with four the second circular holes got through in the surrounding of fixed disk C, the distance at the edge of the centre distance fixed disk C of the second circular hole equals the radius of cylindrical carousel; Turncap D medial center is fixed with the second solid needle, and the bottom of the second solid needle is provided with a fixed plastics cap, has a locking pin in the position corresponding with arc groove, has the groove be meshed that to cog with interior pin B in the shade of turncap D.The radian of the described radian of right angle arcuate sheet cutter, the radian of the first arc-like sheet and three the second arc-like sheets is equal.The thickness of described fixed disk C is 0.5 ~ 2cm.The length of described second solid needle is 15 ~ 18mm.The outside of described fixed disk C is provided with leader and overlaps E, is each side provided with a handles at handle sleeve E, and be provided with two in the inner side of handle sleeve and want with draw-in groove projection the draw-in grooves that adapt to, the internal diameter of handle sleeve equals the external diameter of fixed disk C.

This utility model one can alleviate patient's misery, improve the percutaneous vertebral body puncture biopsy needle of success rate, biopsy needle Front-end Design being become can the sharp keen triangle globoidal structure of y direction rotated edge, its circumgyration incision bone trabecula is made when rotating inserting needle, bone trabecula tissue is made to be pressed towards front and to be retained in needle tubing, after having entered, make front end triangle cambered surface vertical axes 90 ° of further transverse cuts by the turncap of afterbody and pipe inner tissue front end is blocked, in taking-up process, making tissue can stay in pipe.

This utility model advantage is to solve the problem not easily getting tissue when carrying out percutaneous vertebral body percutaneous biopsy to sufferers of osteoporosis face and vertebral body lesion tissue person, does this operation also can reach better effect to general patient.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model percutaneous vertebral body puncture biopsy needle assembled tube A;

Fig. 2 is the structural representation of pin B in this utility model percutaneous vertebral body puncture biopsy needle;

Fig. 3 is the structural representation of this utility model percutaneous vertebral body puncture biopsy needle fixed disk C;

Fig. 4 is the structural representation of this utility model percutaneous vertebral body puncture biopsy needle turncap D;

Fig. 5 is the structural representation of this utility model percutaneous vertebral body puncture biopsy needle handle sleeve E;

Fig. 6 is the structural representation of this utility model percutaneous vertebral body puncture biopsy needle combination

Fig. 7 is the structural representation of this utility model percutaneous vertebral body puncture biopsy needle entirety.

Detailed description of the invention

By reference to the accompanying drawings this utility model is further described below by specific embodiment.

A kind of percutaneous vertebral body puncture biopsy needle described in the utility model, as shown in Fig. 1 ~ 7, is characterized in that: be made up of assembled tube A, interior pin B, fixed disk C and turncap D; Wherein assembled tube A has the first arc-like sheet 1-1 and three the second arc-like sheet 1-2 of strip cut 1-12 around forming by a lower end; The top of interior pin B is a cylindrical carousel 2 with gear 2-1, is provided with the first solid needle 3 at the center of cylindrical carousel 2, is provided with a right angle arcuate sheet cutter 4 at the afterbody of the first solid needle 3; Fixed disk C is a solid cylinder, its lower end symmetry have the protruding 5-1 of two draw-in grooves, there is a central angle to be the arc groove 5-2 of 30 ° on the top of fixed disk C, a first circular hole 5-3 got through is provided with at the center of fixed disk C, also be provided with four the second circular hole 5-4 got through in the surrounding of fixed disk C, the distance at the edge of the centre distance fixed disk C of the second circular hole 5-4 equals the radius of cylindrical carousel 2; The bottom that turncap D medial center is fixed with the second solid needle 7, second solid needle 7 is provided with a fixed plastics cap 7-1, has a locking pin 8 in the position corresponding with arc groove 5-2, has the groove 6-1 that the 2-1 that to cog with interior pin B is meshed in the shade of turncap D.The radian of the radian of described right angle arcuate sheet cutter 4, the radian of the first arc-like sheet 1-1 and three the second arc-like sheet 1-2 is equal.The thickness of described fixed disk C is 0.5 ~ 2cm.The length of described second solid needle 7 is 15 ~ 18mm.The outside of described fixed disk C is provided with leader and overlaps E, is each side provided with a handles 9-1 at handle sleeve E, and be provided with two in the inner side of handle sleeve 9 and want with the protruding 5-1 of draw-in groove the draw-in groove 9-2 that adapts to, the internal diameter of handle sleeve 9 equals the external diameter of fixed disk C.

During concrete use, assembled tube A has the first arc-like sheet 1-1 and three the second arc-like sheet 1-2 of strip cut 1-12 around forming by a lower end, between arc-like sheet, have gap; Assembled tube A is inserted the bottom of fixed disk C, four the second circular hole 5-4 got through that the first solid needle 3 on four interior pin B is established from the surrounding fixed disk C are passed, pass from the intermediate gap of arc-like sheet at the first solid needle 3, the afterbody of the first solid needle 3 is provided with a right angle arcuate sheet cutter 4, the radian of the radian of described right angle arcuate sheet cutter 4, the radian of the first arc-like sheet 1-1 and three the second arc-like sheet 1-2 is equal, as shown in Figures 6 and 7, arc-like sheet and right angle arcuate sheet cutter 4 form a cylinder with the edge of a knife, cut sampling when being beneficial to operation.The cylindrical carousel 2 with gear 2-1 on interior pin B top is stuck in the circular hole 5-4 top, top second of fixed disk C.The groove 6-1 that the 2-1 that to cog with interior pin B is meshed is had in the shade of turncap D, turncap D medial center is fixed with the second solid needle 7 just through the first circular hole 5-3 got through at the center of fixed disk C, the bottom of the second solid needle 7 is provided with a fixed plastics cap 7-1, can fix when the second solid needle 7 passes the center of fixed disk C with fixed plastics cap 7-1.Have a locking pin 8 in the position corresponding with arc groove 5-2, the arc groove 5-2 that this locking pin 8 is 30 ° from central angle passes, and ensures that turncap D can only rotate 30 °, thus the cylindrical carousel 2 with gear 2-1 on interior pin B top can only be driven to rotate 90 °.The outside of fixed disk C is provided with leader and overlaps E, is each side provided with a handles 9-1 at handle sleeve E, and be provided with two in the inner side of handle sleeve 9 and want with the protruding 5-1 of draw-in groove the draw-in groove 9-2 that adapts to, doctor can be located site of puncture by handle easily.

The foregoing is only the detailed description of specific embodiments of the present utility model; this utility model is not limited with this; all do in mentality of designing of the present utility model any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.

Claims

1. a percutaneous vertebral body puncture biopsy needle, is characterized in that: be made up of assembled tube (A), interior pin (B), fixed disk (C) and turncap (D); Wherein assembled tube (A) has first arc-like sheet (1-1) of strip cut (1-12) and three the second arc-like sheets (1-2) around forming by a lower end; The top of interior pin (B) is a cylindrical carousel with gear (2-1) (2), be provided with the first solid needle (3) at the center of cylindrical carousel (2), be provided with a right angle arcuate sheet cutter (4) at the afterbody of the first solid needle (3); Fixed disk (C) is a solid cylinder, its lower end symmetry have two draw-in groove projections (5-1), there is a central angle to be the arc groove (5-2) of 30 ° on the top of fixed disk (C), first circular hole (5-3) got through is provided with at the center of fixed disk (C), also be provided with four the second circular holes (5-4) got through in the surrounding of fixed disk (C), the distance at the edge of the centre distance fixed disk (C) of the second circular hole (5-4) equals the radius of cylindrical carousel (2); Turncap (D) medial center is fixed with the second solid needle (7), the bottom of the second solid needle (7) is provided with a fixed plastics cap (7-1), there is a locking pin (8) in the position corresponding with arc groove (5-2), in the shade of turncap (D), have the groove (6-1) that to cog with interior pin (B) (2-1) is meshed.

2. a kind of percutaneous vertebral body puncture biopsy needle according to claim 1, is characterized in that: the radian of the radian of described right angle arcuate sheet cutter (4), the radian of the first arc-like sheet (1-1) and three the second arc-like sheets (1-2) is equal.

3. a kind of percutaneous vertebral body puncture biopsy needle according to claim 1, is characterized in that: the thickness of described fixed disk (C) is 0.5 ~ 2cm.

4. a kind of percutaneous vertebral body puncture biopsy needle according to claim 1, is characterized in that: the length of described second solid needle (7) is 15 ~ 18mm.

5. a kind of percutaneous vertebral body puncture biopsy needle according to claim 1, it is characterized in that: the outside of described fixed disk (C) is provided with leader's cover (E), a handles (9-1) is each side provided with at handle sleeve (E), be provided with two in the inner side of handle sleeve (9) and want with draw-in groove projection (5-1) draw-in groove (9-2) that adapts to, the internal diameter of handle sleeve (9) equals the external diameter of fixed disk (C).