CN201481461U

CN201481461U - Tissue puncture sampler

Info

Publication number: CN201481461U
Application number: CN2009202223441U
Authority: CN
Inventors: 李钟铎; 赵月峨; 史套兴; 陈万荣
Original assignee: Institute of Microbiology and Epidemiology of AMMS
Current assignee: Institute of Microbiology and Epidemiology of AMMS
Priority date: 2009-09-01
Filing date: 2009-09-01
Publication date: 2010-05-26
Anticipated expiration: 2019-09-01

Abstract

The utility model discloses a tissue puncture sampler, comprising a handle, a sleeve, a puncture needle core and a pull needle, wherein the top end of the puncture needle core is needle-shaped; the sleeve is sheathed on the puncture needle core and is shorter than the puncture needle core; the top part of the pull needle is needle-shaped and is provided with at least one groove; the diameter of the pull needle is smaller than the inner diameter of the sleeve; and the sleeve is shorter than the pull needle. When being used for sampling the corpses of human beings or animals, the tissue puncture sampler greatly reduces the contacting opportunities of operators and the corpses, improves the safety, has simple operation method, and can obtain the sample amount meeting the requirements under the condition of guaranteeing basically-complete corpses.

Description

The tissue penetration sampler

Technical field

This utility model relates to a kind of tissue penetration sampler that the corpse tissue samples is gathered that is used for.

Background technology

At present, in fields such as criminal detection, infectious disease prevention and control, the collection of human or animal's corpse tissue samples all is indispensable step.In corpse tissue sampling process in the past, what adopt is conventional apparatus such as rack saw, hand drill or dissecting knife are arranged, cut more, not only sampling amount is difficult to guarantee, and might cause irreversible infringement to corpse, take a sample such as the postmortem in the criminal detection, utilize conventional apparatus complete, bring very big uncertainty for the postmortem result with regard to the outward appearance of very likely destroying corpse.And when the corpse that infectious disease is arranged was taken a sample, conventional apparatus might cause disease carrying germ to leak because otch is excessive, was very easy to surrounding and personnel are worked the mischief.Therefore, press for a kind of sampling amount that not only can guarantee corpse, can not cause the apparatus of macrolesion again corpse.

The utility model content

The purpose of this utility model provides a kind of tissue penetration sampler, can be used for the people, animal specimen sampling to infectious disease and suspicious death, makes a definite diagnosis evaluation.

Tissue penetration sampler provided by the utility model comprises handle 1, puncture nook closing member 2, sleeve pipe 3 and draws pin 4 that the top of described puncture nook closing member 2 is a rhizoma sparganic needle-like; Described sleeve pipe 3 is set on the puncture nook closing member 2 and is shorter than puncture nook closing member 2; The described top of pin 4 of drawing is needle-like and is provided with at least one groove; The described internal diameter that draws the diameter of pin 4 less than sleeve pipe 3; Described sleeve pipe 3 is shorter than and draws pin 4.

Described handle 1 and puncture nook closing member 2 tail ends are for removably connecting, be generally be threaded, clamp connection or snap close connection.

For the ease of piercing tissue, the top of described puncture nook closing member 2 is that rhizoma sparganic is pointed.

The described tail end that draws pin 4 is provided with and draws the pin handle, is specifically as follows a draw ring.

Get the amount of tissue in order to guarantee, the described top of pin 4 of drawing is provided with a long and short two trapezoidal groove.

Generally speaking, described sleeve pipe 3 is than puncture nook closing member 2 short 0.5-1.0cm.Described sleeve pipe 3 is than drawing pin 4 short 3-5cm.

The tail end of described puncture nook closing member 2 is provided with the annular projection 5 of diameter greater than casing inner diameter.

Described tissue penetration sampler all is made by rustless steel.

The beneficial effects of the utility model are: when human or animal's corpse is taken a sample, significantly reduced the chance that operator contact with corpse, safety improves, and operational approach is simple, can guarantee to obtain satisfactory sample size under the complete substantially situation of corpse.Because this utility model adopts rustless steel to make fully, can boil, high pressure and chemical disinfection, be repeatedly used, reduced equipment cost.

Description of drawings

Fig. 1 is tissue penetration sampler user mode one sketch map.

Fig. 2 is tissue penetration sampler user mode two sketch maps.

Fig. 3 is tissue penetration sampler user mode three sketch maps.

Fig. 4 is the handle sketch map of tissue penetration sampler.

Fig. 5 is the sketch map of puncture nook closing member.

Fig. 6 is telescopic sketch map.

Fig. 7 is the front view that draws pin.

Fig. 8 is the side view that draws pin.

Wherein, 1, handle, 2, the puncture nook closing member, 3, sleeve pipe, 4, draw pin, 5, the annular projection on the puncture nook closing member.

The specific embodiment

Shown in Fig. 1-8, this utility model tissue penetration sampler includes four parts, handle 1 (Fig. 4), sleeve pipe 3 (Fig. 6), puncture nook closing member 2 (Fig. 5) and draw pin 4 (Fig. 7,8), and the top of the nook closing member 2 that punctures is that rhizoma sparganic is pointed; Sleeve pipe 3 is set on the puncture nook closing member 2, and is shorter than puncture nook closing member 20.5-1.0cm; The top of drawing pin 4 is needle-like and is provided with at least one groove; The diameter that draws pin 4 is less than telescopic internal diameter; Sleeve pipe 3 is shorter than and draws pin 43-5cm.

During use, as shown in Figure 1, with handle 1 and puncture nook closing member 2 by being threaded togather, sleeve pipe 3 is enclosed within puncture nook closing member 2 outsides, sleeve pipe 3 is the stainless steel tube of internal diameter 3mm, at this moment again, because puncture nook closing member 2 is longer than sleeve pipe 3, it is outer that the rhizoma sparganic tip of puncture nook closing member 2 is exposed to sleeve pipe 3.During sampling, operator grasp handle 1, and the nook closing member 2 that will puncture penetrates corpse inside, can adjust the degree of depth that penetrates according to sampling point.Because the tail end of puncture nook closing member 2 is provided with the annular projection 5 (Fig. 5) of diameter greater than sleeve pipe 3 internal diameters, so sleeve pipe 3 also can be headed into corpse inside together by annular projection 5.Then, pulling handle 1, the nook closing member 2 that will puncture is pulled out, and sleeve pipe 3 is stayed in the corpse, will draw pin 4 to penetrate the inside of sampled tissue along sleeve pipe 3 inner chambers again.Draw pin 4 to be stainless steel, its diameter promptly slightly less than the internal diameter of sleeve pipe 3, draws the front end of pin 4 to be provided with two grooves of size slightly less than 3mm, and it is dark that two grooves are about 1mm, and big groove is about 1cm, and little groove is about 0.5cm, draws the tip of pin 4 to be the inclined-plane; Draw the tail end of pin 4 to be provided with draw ring.The length of drawing pin 4 is than the big approximately 3.5cm of length of sleeve pipe 3, therefore, draw two grooves of pin 4 syringe needles part can touch sampled tissue fully, slowly rotate the draw ring that draws pin 4 afterbodys, utilize two groove rotary-cut next part corpse tissues that draw pin 4 syringe needles part with hands.At last, the pulling draw ring will draw pin 4 to take out slowly along sleeve pipe 3 inwalls, because the protection of sleeve pipe 3, draw the sample that has just left tissue in the groove of pin 4.

This utility model is not limited to above-mentioned embodiment, and in actual production, can according at the use object length that freely designs puncture nook closing member 2, sleeve pipe 3 and draw pin 4, also can be made into one group of puncture sampler external member from long to short, to adapt to the various variations in the corpse sampling process.

Claims

1. tissue penetration sampler is characterized in that: comprise handle (1), sleeve pipe (3), puncture nook closing member (2) and draw pin (4), the top of described puncture nook closing member (2) is a needle-like; Described sleeve pipe (3) is set in puncture nook closing member (2) and goes up and be shorter than puncture nook closing member (2); The described top of pin (4) of drawing is needle-like and is provided with at least one groove; The described internal diameter that draws the diameter of pin (4) less than sleeve pipe (3); Described sleeve pipe (3) is shorter than and draws pin (4).

2. tissue penetration sampler as claimed in claim 1 is characterized in that, described handle (1) and puncture nook closing member (2) tail end are for removably connecting.

3. tissue penetration sampler as claimed in claim 2 is characterized in that, described handle (1) and puncture nook closing member (2) tail end for be threaded, clamp connection or snap close be connected.

4. tissue penetration sampler as claimed in claim 1 is characterized in that, the top of described puncture nook closing member (2) is that rhizoma sparganic is pointed.

5. tissue penetration sampler as claimed in claim 4 is characterized in that, the described tail end that draws pin (4) is provided with and draws the pin handle.

6. tissue penetration sampler as claimed in claim 5 is characterized in that, the described pin handle that draws is a draw ring.

7. tissue penetration sampler as claimed in claim 1 is characterized in that, the described top of pin (4) of drawing is provided with two trapezoidal grooves.

8. as the arbitrary described tissue penetration sampler of claim 1-7, it is characterized in that described sleeve pipe (3) is than the short 0.5-1.0cm of puncture nook closing member (2).

9. as the arbitrary described tissue penetration sampler of claim 1-7, it is characterized in that described sleeve pipe (3) is than drawing the short 3-5cm of pin (4).

10. as the arbitrary described tissue penetration sampler of claim 1-7, it is characterized in that the tail end of described puncture inner core (2) is provided with the annular projection (5) of diameter greater than casing inner diameter.