CN204765735U - Pathological tissue extractor in art - Google Patents

Abstract

The utility model discloses a pathological tissue extractor in art, including needle tubing, assembly piston, the push -and -pull rod that control piston moved and the syringe needle of installing tip before the needle tubing in the needle tubing, the preceding tip of needle point of syringe needle be round opening, be equipped with in the needle stalk of syringe needle and follow the gliding extraction chamber of syringe needle, connecting rod and hinge joint are passed through to the extraction chamber. The utility model provides a can conveniently carry out the special apparatus that pathology drawed fast, its simple structure, convenient operation, it is with low costs, design circular shape syringe needle tip structure, not influencing under the condition that the syringe needle marchd, reduced the influence to all the other tissues as far as possible, reduced the probability of bleeding, improved the accuracy that the pathology cell was taked, position structure's such as connecting rod in this scheme, extraction chamber setting makes the tissue of syringe needle tip extraction can whole enter into the extraction chambeies, and can not be detained in the syringe needle, and the extraction chamber can directly be taken out from the syringe rear portion, has greatly made things convenient for the collection process of tissue.

Description

Pathological tissue extractor in a kind of art

Technical field

This utility model relates to a kind of auxiliary device determining pathology, be specifically related to a kind of can fast to the extractor that pathology is taked in art.

Background technology

Pathological diagnosis is the goldstandard determining operation plan clinically, by the extraction of pathological tissue and detection, to determine that tumor is optimum and pernicious, will directly have influence on the formulation of subsequent procedures scheme.

First traditional pathological tissue detects needs to take tissue, and censorship after then utilizing fixative fixing to specimen, one to the two days time of this process need, uses in preoperative biopsy of being everlasting, and due to its overlong time, the determination of pathology in inapplicable Rhizoma Atractylodis Macrocephalae.

Another uses more test mode to be quick frozen-section pathologic finding in art, cuts, makes section after quick-freezing, carry out histological observation under the microscope in art to pathological tissue.But the defect of this mode is: 1. operating process is complicated, is difficult to grasp, needs the equipment supports such as freezing microtome; 2., because of freezing when cryogenic freezing is cut into slices, make tissue and cytometaplasia comparatively large, affect the accuracy of diagnostic result to a certain extent; 3. section is thicker, and cell is large, and level is many, the diagnostic result easily made the mistake, but this test mode does not have unnecessary thinking leeway, once report an error, will cause seriously and the consequence that cannot make up; 4. what is more important, this pathology detection method also needs 30 to 40 minutes just can obtain testing result, but the prolongation of operating time brings larger risk by operation.

In the deterministic process of surgery Pathology, propose one method more fast at present, namely adopt extraction element to take some pathological tissue cells, make cytologic slide and then check, this test mode only needs a few minutes just can determine pathology fast.But also there are some problems in the application process of this method:

Current do not have a kind of device being exclusively used in pathological tissue cell extraction, adopts syringe to substitute.The needle of syringe is inclined-plane, but some organize diameter only a centimeter, and needle portion opening is excessive easily to be missed tissue or pokes blood vessel, brings difficulty to operation; And a small amount of histiocyte extracted easily is trapped in syringe needle or is attached on syringe inwall, brings a difficult problem to follow-up collection process.

Summary of the invention

For above-mentioned problems of the prior art, the purpose of this utility model is, provides pathological tissue extractor in a kind of art, can extract pathological tissue quickly and easily, greatly shorten pathology and determine that the time is to determine pathology fast, thus shorten operating time, reduce operation risk.

In order to realize above-mentioned task, this utility model by the following technical solutions:

Pathological tissue extractor in a kind of art, comprise needle tubing, the push-pull bar of the piston be assemblied in needle tubing, control piston motion and be installed on the syringe needle of needle tubing leading section, the leading section of the needle point of described syringe needle is circular open, in the pin stalk of syringe needle, be equipped with the extracting cavity can slided along syringe needle, extracting cavity is connected with piston by connecting rod.

Further, described needle point is the structure formed from pin stalk front end tapers forward, and taper angle is 0 ~ 45 °.

Further, described extracting cavity is the round tube shape structure that the other end is penetrating with an end face, and end face offers the second passage.

Further, be provided with sliding chamber in described piston, be equipped with and can slide in sliding chamber and the gear plug can not deviate from from sliding chamber in sliding chamber, described connecting rod is connected to gear in piston beyond the Great Wall.

Further, described sliding chamber is circular cavity, and sliding chamber extends to syringe needle direction convergent near one end of syringe needle, and passes piston, forms bayonet socket; Described connecting rod enters sliding chamber and fills in be connected with gear in bayonet socket.

Further, described gear plug is cylindric cock body, and gear is the tapered configuration with bayonet fittings near one end of bayonet socket beyond the Great Wall; Gear plug is elasticity cock body, and gear plug be may be stuck in bayonet socket.

Further, being equipped with in described extracting cavity can the push pedal of movement in extracting cavity, and described connecting rod is connected in the push pedal in extracting cavity, push pedal offers the first passage.

Further, one end that described extracting cavity is penetrating is provided with line of cut.

Further, when described piston is positioned at the leading section of needle tubing, extracting cavity is positioned at the leading section of pin stalk.

This utility model compared with prior art has following technical characterstic:

1. provide the quick and convenient special equipment carrying out pathology extraction of a kind of energy, its structure is simple, and easy to operate, cost is low;

2. devise circular needle structure, not affecting under the condition that syringe needle advances, reducing the impact on remaining tissue as much as possible, reducing hemorrhage probability, improving the accuracy that pathological cells is taked;

3. the setting of the positional structures such as the connecting rod in this programme, extracting cavity, the tissue that needle is extracted all can enter into extracting cavity, and can not be trapped in syringe needle, and extracting cavity can directly be taken out from syringe rear portion, is very easy to the gatherer process of tissue;

4. extracting cavity can regulate as required and change, same position be organized in extraction time can carry out longitudinal cutting as required, make the histiocyte level of extraction clearly more demarcated, split again without the later stage, to produce once plural cell smear, be conducive to determining testing result by way of contrast, thus improve the accuracy of testing result.

Accompanying drawing explanation

Fig. 1 is overall structure schematic diagram of the present utility model;

Fig. 2 is that extracting cavity is positioned at the structural representation started when extracting position;

Fig. 3 is the cross-sectional schematic of piston portion;

Fig. 4 is the structural representation of extracting cavity, connecting rod and gear plug portion;

Fig. 5 is the perspective enlarged diagram of extracting cavity;

Fig. 6 is the enlarged diagram of syringe needle;

Number in the figure represents: 1-syringe needle, 101-needle point, and 102-pin obstructs, and 103-pin is fastened, 2-extracting cavity, 201-push pedal, 202-line of cut, the 203-the first passage, the 204-the second passage, 3-connecting rod, 4-needle tubing, 5-piston, 6-push-pull bar, 7-bayonet socket, 8-sliding chamber, 9-gear plug.

Detailed description of the invention

Cytologic slide detects fast and effeciently can distinguish pathology, for the formulation of operation plan provides important evidence in art.Its accuracy rate is high, and can by the time shorten of pathology detection to a few minutes, is the good medical science detection means of a kind of application prospect.And to detect the most important cytology be exactly obtain pathological cells tissue as far as possible in high quality.Current doctor adopts syringe to substitute as extraction element, and thrust in organ, tissue and draw a small amount of cell tissue, but syringe drawback is too many, the histiocyte amount mainly owing to drawing is less, gathers rapidly after being difficult to extraction.The thinking of this programme is on the basis of syringe, adopt other utensil directly to be taken out by the histiocyte of extraction, makes whole simple operation.

Pathological tissue extractor in a kind of art, comprise needle tubing 4, the push-pull bar 6 of the piston 5 be assemblied in needle tubing 4, control piston 5 motion and be installed on the syringe needle 1 of needle tubing 4 leading section, the leading section of the needle point 101 of described syringe needle 1 is circular open, in the pin stalk 102 of syringe needle 1, be equipped with the extracting cavity 2 can slided along syringe needle 1, extracting cavity 2 is connected with piston 5 by connecting rod 3.

As shown in Figure 1, this extractor is based on existing syringe, and syringe has operation feature easy smoothly.The syringe needle 1 of syringe, its structure comprises needle point 101, pin stalk 102 and pin and fastens 103, and pin is fastened 103 and is used for syringe needle 1 to be installed on the nipple of syringe front end.Traditional needle point 101 is inclined-plane shape needle point 101, and namely the opening of needle point 101 is inclined-plane openings.The syringe adopted in art is the syringe of large size, and the general applications of this syringe mainly configures medicine, extracting bodily fluid etc., Gu inclined-plane opening is conducive to passing through of liquid and convenient puncture.But opening its face in inclined-plane is comparatively large, make utilize the needle point 101 of this structure puncture extraction organize time, easily occur puncturing blood vessel, neural situation, and the bad control of inclined-plane opening towards, be difficult to accurate aspirates tissue.The circular open proposed in this programme, makes the regularization of needle point 101 partial shape, reduces the opening portion of needle point 101, is beneficial to operation and can avoids blood vessel, nerve etc. easily.The important structure of another one is assemblied in the extracting cavity 2 in pin stalk 102.The diameter of syringe needle 1 is much smaller than needle tubing 4 diameter, Gu when pulling piston 5,101, needle point will produce powerful negative pressure, and tissue is drawn in pin stalk 102 from needle point 101.Because needle point 101 opening is little, the tissue of absorption is a small amount of, and after therefore traditional syringe extracts, tissue easily attaches inwall, is difficult to take out.The extracting cavity 2 of this programme, be arranged in pin stalk 102, the tissue extracted enters into the extracting cavity 2 of pin stalk 102, and extracting cavity 2 is connected with piston 5, pull back piston 5 until piston 5 is extracted from needle tubing 4 rear end, then extracting cavity 2 is taken out of by piston 5, just can be taken out by tissue easily from extracting cavity 2 and test.

As the preferred structure of one, as shown in Fig. 2, Fig. 6, needle point 101 is the structure obstructing 102 front end tapers forward formation from pin, and taper angle is 0 ~ 45 °, and the leading section of needle point 101 is circular open, and disc is vertical with the direction of axis line of needle tubing 4.

The front end that needle point 101 is equivalent to pin stalk 102 continues to extend forward, and the structure constantly reducing diameter and formed in the process extended, at this moment the front end face of needle point 101 is circular; Here taper angle is that pointer tip 101 leading section and pin obstruct a line the shortest between 102 leading sections and pin and obstruct angle between 102 axial lines.The design of needle point 101 structure, should consider and the circular open of needle point 101 front end can not be made too little and each amount extracting tissue of impact, ensures that needle point 101 part has certain penetrance again, is enough to puncture organ, tissue etc. and arrives extraction location.Utility model people is through test of many times, the taper angle determining needle point 101 part is 0 ~ 45 °, a preferred scope is 10 ° ~ 30 °, namely the diameter of circular open is less than pin and obstructs 102 diameters, but it is little not too much, within the scope of this, not only needle point 101 can extract tissue easily, and due to the tapered configuration at needle point 101 position, make needle point 101 at tissue, when advancing in organ, except the passage that needle point 101 end is opened up, it is " squeezed " to both sides the position of its process to open that pin obstructs in 102 traveling process, instead of it is too large as existing its front opening of syringe needle 1, that the position of process direct " drawing " is opened in traveling process, which reduce needle point 101 part and blood vessel, the probability of nerve contact, effectively accidental injury can be reduced in syringe needle 1 traveling process, to arrive commitment positions fast.

The structure of extracting cavity 2 can clearly be showed by Fig. 5.Extracting cavity 2 is the penetrating round tube shape structure of the other end with an end face, and end face offers the second passage 204.

Extracting cavity 2 is assemblied in pin stalk 102, can obstruct in 102 slide at pin, and the external diameter of extracting cavity 2 is slightly less than the internal diameter of pin stalk 102.Extracting cavity 2 is circular tube structure, only with an end face, this end face is provided with the second blow vent, and penetrating one end is closer to needle point 101.Negative pressure is transmitted in the effect of the second blow vent, namely keeps the subnormal ambient of pin in needle point 101 to needle tubing 4, makes the tissue of needle point 101 front end during twitch piston 5 can enter needle point 101 smoothly, then enter into extracting cavity 2.Due to extract piston 5 backward process in pin stalk 102, remain negative pressure state in extracting cavity 2 always, the tissue extracted under suction function when so extracting piston 5 will remain in extracting cavity 2 always, extract piston 5 backward until piston 5 is extracted from needle tubing 4, take extracting cavity 2 out of, then just can take out organizing easily from extracting cavity 2.

As the preferred structure of one, be provided with sliding chamber 8 in this programme in piston 5, be equipped with in sliding chamber 8 and can slide in sliding chamber 8 and the gear plug 9 can not deviate from from sliding chamber 8, described connecting rod 3 is connected on the gear plug 9 in piston 5.

As shown in Figure 2, be the initial position of extracting cavity 2 when extraction is organized.When initial position, extracting cavity 2 is positioned at the leading section of pin stalk 102, and namely with the rear end in contact of needle point 101, piston 5 is positioned at the leading section of needle tubing 4.Certainly due to the tapered configuration of needle point 101, extracting cavity 2 can not be stretched out from needle point 101 front end.In order to effectively ensure that the tissue extracted can enter into extracting cavity 2 ideally, be provided with gear plug 9 structure.In the position shown in Fig. 2, gear plug 9 is positioned at the rear end in sliding chamber 8.Rear end refers to the one end near push-pull bar 6.Axially there is certain length in sliding chamber 8 at needle tubing 4, and gear plug 9 can be slided wherein.Gear plug 9 connects connecting rod 3.When needle point 101 arrives commitment positions, pull back push-pull bar 6, now push-pull bar 6 drives piston 5 to move backward.But the frictional force of keeping off between plug 9 and sliding chamber 8 is very little, when piston 5 moves backward, the position of gear plug 9, connecting rod 3 and extracting cavity 2 remains unchanged.Elastic construction can certainly be made in extracting cavity 2 front end, during the setting of extracting cavity 2 position, the fore-end of extracting cavity 2 being extend in needle point 101, makes to produce certain frictional force between the outer wall of extracting cavity 2 and needle point 101 inwall, being conducive to the position keeping extracting cavity 2 when extracting piston 5.

Piston 5 moves at the beginning backward, and the subnormal ambient in needle tubing 4 front end, pin stalk 102 and needle point 101 is just set up, and now histiocyte starts to enter into pin stalk 102 from needle point 101.Because extracting cavity 2 obstructs 102 foremost at pin, the tissue so extracted will enter into extracting cavity 2.A segment distance until piston 5 moves, keep off end in contact before plug 9 and sliding chamber 8, under the restriction and induced effect of sliding front end, chamber 8, gear plug 9 moves together by starting to follow piston 5, now keep off plug 9 to move through connecting rod 3 and start to drive extracting cavity 2 to move, then such structure can ensure that tissue can enter into extracting cavity 2 completely.Extracting cavity 2 is being pulled in motor process backward by connecting rod 3, and because the negative pressure in pin stalk 102 exists always, then, before piston 5 is extracted from needle tubing 4, the tissue of extraction will be inhaled in extracting cavity 2 always firmly.Therefore by the method pulled to the back-end always, piston 5 together can be extracted from needle tubing 4 rear end together with extracting cavity 2, then take out the histiocyte of extraction from extracting cavity 2.

Being equipped with in extracting cavity 2 can the push pedal 201 of movement in extracting cavity 2, and described connecting rod 3 is connected in the push pedal 201 in extracting cavity 2, push pedal 201 offers the first passage 203.

After extracting cavity 2 is taken out, because histiocyte is a small amount of, difficulty has suitable apparatus to take out histiocyte from extracting cavity 2, therefore in extracting cavity 2, is provided with push pedal 201, and connecting rod 3 is connected in push pedal 201.The first passage 203 in push pedal 201 acts on identical with the second passage 204, is transmission negative pressure.After extracting cavity 2 is taken out from needle tubing 4, be placed on by microscope slide below extracting cavity 2 front end, now driven forward connecting rod 3, the histiocyte taked in extracting cavity 2 release drops on by push pedal 201 on microscope slide by connecting rod 3.

The penetrating one end of extracting cavity 2 is provided with line of cut 202, after the arranging of this structure, when histiocyte enters extracting cavity 2 from extracting cavity 2 front end, owing to being subject to the cutting of line of cut 202, enter in process and will be cut into two parts of equivalent, taking out from extracting cavity 2 is also two parts, is equivalent to once take two increments originally, is convenient to pathology detection process and determines pathology more exactly by the mode of contrast.Line of cut 202 can be one, also can be many, the histiocyte of extraction can be divided into many parts when many.

One more specifically sliding chamber 8 structure, as shown in Figure 2 and Figure 3.Sliding chamber 8 is circular cavity, and sliding chamber 8 extends to syringe needle 1 direction convergent near one end of syringe needle 1, and passes piston 5, forms bayonet socket 7; Described connecting rod 3 enters sliding chamber 8 and is connected with gear plug 9 in bayonet socket 7.Gear plug 9 is cylindric cock body, and on gear plug 9, one end of close bayonet socket 7 is the tapered configuration coordinated with bayonet socket 7; Gear plug 9 is elasticity cock body, and gear plug 9 be may be stuck in bayonet socket 7.

Sliding chamber 8 is circular cavities, penetrates piston 5 by bayonet socket 7.Bayonet socket 7 is structures that sliding chamber 8 convergent extends to form, and when piston 5 moves relative to gear plug 9, until gear plug 9 contacts with bayonet socket 7, due to the restriction of bayonet socket 7, at this moment gear plug 9 will be followed piston 5 and moved together.For piston in Fig. 3, Fig. 35 to the left-hand motion in figure, be equivalent to twitch piston 5 backward from needle tubing 4, so during piston 5 setting in motion, be equivalent to gear plug 9 slide in sliding chamber 8, until gear plug 9 contacts with bayonet socket 7, now drive gear plug 9 moves by piston 5 together.Gear plug 9 is preferably elasticity cock body, when being tucked in bayonet socket 7, can block with holding position, will facilitate the installation process of extracting cavity 2.

The using method of this device is with reference to as follows:

1. syringe needle 1 is contained in the leading section of needle tubing 4;

2. pull forward gear plug 9, make gear plug 9 be stuck in the bayonet socket 7 in sliding chamber 8, first put into extracting cavity 2 from needle tubing 4 rear end, aim at the center of needle tubing 4 front end, extracting cavity 2 is entered pin stalk 102 from needle tubing 4 front end, continues driven forward push-pull bar 6, make piston 5 be assembled in needle tubing 4;

3. go ahead and promote push-pull bar 6, when push-pull bar 6 is obviously subject to resistance, illustrates that extracting cavity 2 has arrived pin and obstructed 102 positions, leading section, and keep off the rear end that plug 9 is positioned at sliding chamber 8, now keep the position of push-pull bar 6, carry out puncture procedure;

4. hold advanced positions and direction that needle tubing 4 controls needle point 101, after needle point 101 arrives commitment positions, first slowly twitch piston 5 backward, histiocyte is made to enter into extracting cavity 2, until piston 5 twitch resistance obviously increase time, illustrate that gear plug 9 has been stuck in bayonet socket 7, now can pull back push-pull bar 6 fast a little, until piston 5 and extracting cavity 2 are all extracted from needle tubing 4 rear end;

5. pinch extracting cavity 2 with tweezers, then driven forward connecting rod 3, under the effect of push pedal 201, the tissue in extracting cavity 2 is pushed out, and obtains the pathological tissue taked, and can carry out follow-up analysis and detect operation.

Claims (9)

1. pathological tissue extractor in an art, comprise needle tubing (4), the piston (5) be assemblied in needle tubing (4), push-pull bar (6) that control piston (5) moves and the syringe needle (1) that is installed on needle tubing (4) leading section, it is characterized in that, the leading section of the needle point (101) of described syringe needle (1) is circular open, in pin stalk (102) of syringe needle (1), be equipped with the extracting cavity (2) can slided along syringe needle (1), extracting cavity (2) is connected with piston (5) by connecting rod (3).

2. pathological tissue extractor in art as claimed in claim 1, is characterized in that, described needle point (101) is the structure formed from pin stalk (102) front end tapers forward, and taper angle is 0 ~ 45 °.

3. pathological tissue extractor in art as claimed in claim 1, is characterized in that, described extracting cavity (2) is the penetrating round tube shape structure of the other end with an end face, and end face offers the second passage (204).

4. pathological tissue extractor in art as claimed in claim 1, it is characterized in that, sliding chamber (8) is provided with in described piston (5), be equipped with in sliding chamber (8) and can slide in sliding chamber (8) and the gear plug (9) can not deviate from from sliding chamber (8), described connecting rod (3) is connected on the gear plug (9) in piston (5).

5. pathological tissue extractor in art as claimed in claim 4, it is characterized in that, described sliding chamber (8) is circular cavity, sliding chamber (8) extends to syringe needle (1) direction convergent near one end of syringe needle (1), and pass piston (5), form bayonet socket (7); Described connecting rod (3) enters sliding chamber (8) and fills in (9) be connected with gear in bayonet socket (7).

6. pathological tissue extractor in art as claimed in claim 5, it is characterized in that, described gear plug (9) is cylindric cock body, and the upper one end near bayonet socket (7) of gear plug (9) is the tapered configuration coordinated with bayonet socket (7); Gear plug (9) is elasticity cock body, and gear plug (9) be may be stuck in bayonet socket (7).

7. pathological tissue extractor in art as claimed in claim 1, it is characterized in that, being equipped with in described extracting cavity (2) can in the push pedal (201) of movement in extracting cavity (2), described connecting rod (3) is connected in the push pedal (201) in extracting cavity (2), push pedal (201) offers the first passage (203).

8. pathological tissue extractor in art as claimed in claim 3, it is characterized in that, one end that described extracting cavity (2) is penetrating is provided with line of cut (202).

9. pathological tissue extractor in art as claimed in claim 1, is characterized in that, when described piston (5) is positioned at the leading section of needle tubing (4), extracting cavity (2) is positioned at the leading section of pin stalk (102).