CN104706386A - Pleura biopsy puncture needle capable of selecting sampling points in wide-range mode - Google Patents

Abstract

The invention relates to a pleura biopsy puncture needle capable of selecting sampling points in a wide-range mode. The pleura biopsy puncture needle consists of an inner needle provided with a handle and an outer needle tube, wherein the inner needle is sleeved with the outer needle tube. The pleura biopsy puncture needle is characterized in that the inner needle from the root portion of the handle to the tip end of a needle point is an arc-shaped needle rod, the radian of the arc-shaped needle rod ranges from 60 degrees to 90 degrees, and bending radius ranges from 100 mm to 110 mm. The outer needle tube is equal to the inner needle in bending radius, and when the outer needle tube is arranged at the root portion of the handle of the inner needle in a sleeving mode, the needle point of the inner needle is exposed out of the outer needle tube. The inner needle and the outer needle tube of the pleura biopsy puncture needle are in arc shapes equal in bending radius, the outer needle tube can be controlled to select the sampling points in the 360-degree wide-range mode by pulling out the inner needle after the pleura biopsy puncture needle penetrates into the chest of a patient, the end located at the chest of the patient can be accurately aligned to the pleura at the diseased position, and pleura biopsy puncture needle is convenient and fast to sample.

Description

A kind of pleura biopsy puncture pin can selecting sampled point on a large scale

Technical field

The present invention relates to medical equipment, be specifically related to the puncture needle for pleura sampling.

Background technology

Often run into aerothorax in clinical or/and the disease such as hydrops and tumor, first this kind of disease bores a hole with puncture needle usually, and pin in then transfering to, puts in thoracic cavity by biopsy forceps from the passage of outer needle tubing, takes out pleura and carries out biopsy.Due to the arc in thoracic cavity, and common puncture needle is direct rod shape, is therefore difficult to select suitable position perforation and biopsy forceps is entered behind thoracic cavity just to the pleura of pathological changes.Due to visible, adopt existing puncture needle to bore a hole and sample very inconvenience, not only easily accidentally injure the internal organs of patient, increase operation risk, and extend operating time, increase the misery of patient.

Summary of the invention

In view of prior art exists upper not enough, technical problem to be solved by this invention is to provide a kind of pleura biopsy puncture pin of improvement, and this pleura biopsy puncture pin can select sampled point on a large scale.

The technical scheme that the present invention solves the problem is as follows:

A kind of pleura biopsy puncture pin can selecting sampled point on a large scale, this pleura biopsy puncture pin forms by having pin and outer needle tubing in handle, described outer needle tubing is placed on outside interior pin, it is characterized in that, described interior pin is arc shank from the root of its handle to the tip of needle point, the radian of this arc shank is 60 ° ~ 90 °, and bending radius is 100 ~ 110mm; The bending radius of described outer needle tubing is equal with the bending radius of described interior pin, and when overlapping the root part of handle to interior pin, the needle point of interior pin exposes outer needle tubing.

Also can prevent outer needle tubing from slipping in human body for the ease of operation, the outer needle tubing described in such scheme is provided with the step of radial dilatation at relative with the handle of interior pin one.

In such scheme of the present invention, the surface of described outer needle tubing is also provided with graduation mark along its length, so that doctor controls to thrust the degree of depth.

Because interior pin of the present invention and outer needle tubing are the arc that bending radius is equal, therefore chest is thrust and in transfering to after pin, can control described outer needle tubing 360 degree and select sampled point on a large scale, the one end being located at chest can aim at the pleura of diseased region exactly.Now, when biopsy forceps directly can capture the pleura of diseased region after outer needle tubing puts in chest, convenient and swift.Visible, pleura biopsy puncture pin of the present invention both can reduce the operation easier of doctor, can save operating time again, and significantly reduced operation risk and patient's misery.

Accompanying drawing explanation

Fig. 1 and Fig. 2 is the structural representation of a specific embodiment of pleura biopsy puncture pin of the present invention, and wherein, Fig. 1 is front view (analysing and observe), and Fig. 2 is that the A of Fig. 1 is to enlarged drawing.

Fig. 3 is the structural representation of Fig. 1 and China and foreign countries embodiment illustrated in fig. 2 needle tubing.

Fig. 4 to be Fig. 3 be Fig. 1 and China and foreign countries embodiment illustrated in fig. 2 needle tubing thrusts the sectional schematic diagram of a certain state after torso model.

Detailed description of the invention:

See Fig. 1 and Fig. 2, whole pleura biopsy puncture pin 8 is made up of interior pin 1 and outer needle tubing 2, and wherein, one of interior pin 1 is needle point 3, and other end is handle 4; Interior pin 1 is arc shank 5 from the root of its handle 4 to the tip of needle point 3, and the radian θ of this arc shank 5 is 90 °, and bending radius is 105mm; The bending radius of outer needle tubing 2 is also 105mm.But the arc shank 5 of the comparatively interior pin 1 of the arc length that outer needle tubing 2 is bending is short, and when outer needle tubing 2 overlaps handle 4 root to interior pin 1, the needle point 3 of interior pin 1 exposes outer needle tubing 2.

See Fig. 1 and Fig. 3, outer needle tubing 2 is provided with the step 6 of radial dilatation at one relative with the handle 4 of interior pin 1; The surface of outer needle tubing 2 is also provided with graduation mark 7 along its length.

See Fig. 4 and composition graphs 1 and 3, after whole pleura biopsy puncture pin 8 is thrust torso model 9, pin 1 in transfering to, then, outer needle tubing described in control 2360 degree selects sampled point, and the one end be located in torso model aims at the pleura of diseased region exactly, finally, be that the biopsy forceps 10 of spring sheath pipe extends sampled point in outer needle tubing 2 by tong arm, control clamp and launch clip pleura (see Fig. 4).

Claims (3)

1. can select the pleura biopsy puncture pin of sampled point on a large scale for one kind, this pleura biopsy puncture pin forms by having pin and outer needle tubing in handle, described outer needle tubing is placed on outside interior pin, it is characterized in that, described interior pin is arc shank from the root of its handle to the tip of needle point, the radian of this arc shank is 60 ° ~ 90 °, and bending radius is 100 ~ 110mm; The bending radius of described outer needle tubing is equal with the bending radius of described interior pin, and when overlapping the root part of handle to interior pin, the needle point of interior pin exposes outer needle tubing.

2. a kind of pleura biopsy puncture pin can selecting sampled point on a large scale according to claim 1, it is characterized in that, described outer needle tubing is provided with the step of radial dilatation at relative with the handle of interior pin one.

3. a kind of pleura biopsy puncture pin can selecting sampled point on a large scale according to claim 1 and 2, it is characterized in that, the surface of described outer needle tubing is also provided with graduation mark along its length.