CN105193461A - Endoscopic ultrasonography puncture needle vacuum extractor device with quantitative control negative pressure - Google Patents
Endoscopic ultrasonography puncture needle vacuum extractor device with quantitative control negative pressure Download PDFInfo
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- CN105193461A CN105193461A CN201510725207.XA CN201510725207A CN105193461A CN 105193461 A CN105193461 A CN 105193461A CN 201510725207 A CN201510725207 A CN 201510725207A CN 105193461 A CN105193461 A CN 105193461A
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Abstract
The invention relates to an endoscopic ultrasonography puncture needle vacuum extractor device with quantitative control negative pressure. The vacuum extractor device comprises a push-pull rod, a piston, an extractor body, a fixing joint and a connection joint; the fixing joint is arranged at one upper end of the extractor body of which the other end is provided with the connection joint; the connection joint is provided with a one-way valve; the extractor body is marked with a calibrated scale; the piston is fixedly connected with one end of the push-pull rod of which the other end is fixedly connected with a handle; the push-pull rod is provided with a limiting lug; the fixing joint comprises a sleeve, a side wing, a connection hole and a limiting clamping slot matched with the limiting lug on the push-pull rod. The endoscopic ultrasonography puncture needle vacuum extractor device with the quantitative control negative pressure has the advantages that the size of negative pressure can be quantitatively controlled, the negative pressure of different sizes can be used for the puncture needle to extract different focus tissues to enable the focus tissues to be fully extracted, incomplete extracting due to overlarge or oversmall negative pressure is avoided, operation difficulty is reduced, operation is simple and a puncture needle is stable in angle and depth.
Description
Technical field
The present invention relates to technical field of medical instruments, specifically, is a kind of ultrasonic endoscope puncture needle vacuum suction apparatus of fixing quantity negative pressure
Background technology
Swollen thing under gastrointestinal tract mucosa, as mesenchymoma, lymphoma, hemangioma etc., usually need biopsy repeatedly, and conventional endoscopic difficult diagnosis, diagnosis rate is not high.Along with the development of modern technologies, ultrasonic diagnosis is attached in scope, the focus making doctor can utilize ultrasonic endoscope to diagnose out body cavities more small and early stage.Its correctness of the diagnosis of any image does not go up the direct pathology to tissue and chemically examines, therefore, even if after ultrasonic endoscope enters human body, find the position that may become focus, doctor still more wishes the advantage in the pincers road utilizing scope to have, obtain the biological tissue of lesions position, carry out pathological analysis.
In order to obtain the tissue of lesions position, conventional puncture needle carries out puncture suction, to obtain histiocyte in conjunction with ultrasonic endoscope to digestive tract and focus thereof.It is strong that puncture under ultrasonic endoscope has accuracy, and safety is high, patient is painful little, the advantage that effects of clinic diagnosis is outstanding.But puncture needle has the following disadvantages and defect in prior art.
First, doctor conveniently, usually syringe connecting puncture needle is selected, by the negative pressure of syringe, puncture needle is aspirated, and the negative pressure that syringe is formed is more single, can only qualitative contrlol, can not quantitatively control, for the tissue of different focus, its suction force needed is different, if the negative pressure all using syringe to be formed is aspirated puncture needle, sometimes because negative pressure is excessive, suction force is large, extract excessive tissue, or sometimes because negative pressure is too small, axle suction is less, can not aspirate lesion tissue;
Secondly, because of use syringe formed negative pressure time be manual operation, in practical operation work, part focus is comparatively solid, need to keep vacuum suction to draw more tissues for a long time, this needs operator to have good arm strength, muscle power, and must keep same position, in case the degree of depth of puncture needle and angle change.
In addition, the vacuum magnitude of the tissue and assessment in advance that sometimes aspirate focus has error, and this just needs suitable adjustment vacuum magnitude, i.e. minor adjustments vacuum magnitude, to obtain vacuum magnitude required in practical operation, makes it aspirate lesion tissue better.
In sum, needing one badly can fixing quantity vacuum magnitude, the puncture needle vacuum suction apparatus of the angle of micro-positioning regulators negative pressure, simple to operate, puncture needle and the stable fixing quantity negative pressure of the degree of depth, and about the puncture needle vacuum suction apparatus of this fixing quantity negative pressure.Yet there are no report.
Summary of the invention
The object of the invention is for deficiency of the prior art, provide one can fixing quantity vacuum magnitude, the puncture needle negative-pressure puncture needle vacuum suction apparatus of the angle of micro-positioning regulators negative pressure, simple to operate, puncture needle and the stable fixing quantity negative pressure of the degree of depth.
For achieving the above object, the technical scheme that the present invention takes is:
A ultrasonic endoscope puncture needle vacuum suction apparatus for fixing quantity negative pressure, described vacuum suction apparatus comprises push-pull bar, piston, suction pump body, anchor tip, jointing; Described push-pull bar is placed in suction pump body; On described suction pump body, one end is provided with anchor tip, and the other end is provided with jointing; Described jointing is provided with check valve; Described suction pump body is marked with rule; Described suction pump body is hollow structure; Described push-pull bar one end is fixedly connected with piston, and the other end is fixedly connected with hands handle; The external diameter of described piston and the diameter compatible of suction pump body close; Described push-pull bar is provided with spacing block set; Described anchor tip comprises sleeve, flank, connecting hole, spacing draw-in groove; Described sleeve is fixed on the outer end of suction pump body, and its circular hole and suction pump body internal diameter match; Described spacing draw-in groove and push-pull bar upper limit projection match.
Described spacing draw-in groove is one; Described spacing block set is single row configuration form.
Described spacing draw-in groove is two; Described spacing block set is two row's versions, and the spacing block set of its two row is corresponding consistent.
Described spacing draw-in groove is three; Described spacing block set is three row's versions.Spacing block set angle on same cross section of its three row is 120 degree.
Described spacing draw-in groove is four, and the spacing draw-in groove on same cross section is cross; Described spacing block set is four row's versions.
Described spacing draw-in groove is two; Described spacing block set is two row's versions, the spacing block set arrangement straggly of its two row.
Described suction pump body is also provided with vernier knob, and its vernier knob end is provided with gear, and gear is installed with on the orthogonal direction of vertical spacing block set.
Described push-pull bar is also provided with gear grooved; Described gear grooved and gear engage each other.
The invention has the advantages that:
1, the ultrasonic endoscope puncture needle vacuum suction apparatus of a kind of fixing quantity negative pressure of the present invention, can fixing quantity vacuum magnitude, different negative pressure can be used for puncture needle and aspirates different lesion tissue, it is made fully to aspirate lesion tissue, avoid because negative pressure is excessive or too small, suction not exclusively, reduces operation easier, and angle and the degree of depth of micro-positioning regulators negative pressure, simple to operate, puncture needle are stablized;
2, push-pull bar is provided with multi-form spacing block set, its single spacing block set structure is simple, the spacing block set of two rows can avoid force localization on spacing block set, spacing block set is avoided to damage, the spacing block set of three rows, good stability, the spacing block set of four rows is handling good, for different occasion, required spacing block set spread pattern can be selected;
3, suction pump body is provided with rule, accurately can show vacuum magnitude, facilitates doctor to judge thus operates accordingly;
4, suction pump body is also provided with vernier knob, vernier knob, gear, gear grooved, by the rotary motion of vernier knob energy control gear, and gear and push-pull bar cog, groove engages each other, when wheel rotates, drive push-and-pull fine setting simultaneously, and then realize finely tuning vacuum magnitude.
Accompanying drawing explanation
Accompanying drawing 1 is the ultrasonic endoscope puncture needle vacuum extractor apparatus structure schematic diagram of a kind of fixing quantity negative pressure of the present invention.
Accompanying drawing 2 is suction pump body construction schematic diagram.
Accompanying drawing 3 is push-pull bar structural representation.
Accompanying drawing 4 is anchor tip structural representation.
Accompanying drawing 5 is ultrasonic endoscope puncture needle vacuum extractor apparatus structure schematic diagrams of another kind of fixing quantity negative pressure of the present invention.
Accompanying drawing 6 is another kind of push-pull bar structural representation;
Accompanying drawing 7 is another kind of anchor tip structural representation.
Accompanying drawing 8 is ultrasonic endoscope puncture needle vacuum extractor apparatus structure schematic diagrams of another kind of fixing quantity negative pressure of the present invention.
Accompanying drawing 9 is another kind of push-pull bar structural representation.
Accompanying drawing 10 is another kind of anchor tip structural representation.
Accompanying drawing 11 is ultrasonic endoscope puncture needle vacuum extractor apparatus structure schematic diagrams of another kind of fixing quantity negative pressure of the present invention.
Accompanying drawing 12 is another kind of push-pull bar structural representation.
Accompanying drawing 13 is another kind of anchor tip structural representation.
Accompanying drawing 14 is ultrasonic endoscope puncture needle vacuum extractor apparatus structure schematic diagrams of another kind of fixing quantity negative pressure of the present invention.
Accompanying drawing 15 is another kind of push-pull bar structural representation
Accompanying drawing 16 is ultrasonic endoscope puncture needle vacuum extractor apparatus structure schematic diagrams of another kind of fixing quantity negative pressure of the present invention.
Accompanying drawing 17 is another kind of suction pump body construction schematic diagram.
Accompanying drawing 18 is another kind of push-pull bar structural representation.
Accompanying drawing 19 is vernier knob structural representation.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention provided by the invention is elaborated.
The Reference numeral related in accompanying drawing and ingredient as follows:
1. push-pull bar 11. piston
12. spacing block set 13. anchor tips
The spacing draw-in groove of 131. sleeve 132.
133. circular hole 134. flanks
14. handle 2. suction pump bodies
21. rule 3. jointings
31. check valve 4. vernier knobs
41. gear 42. gear grooveds
Embodiment 1
Please refer to Fig. 1, Fig. 1 is the ultrasonic endoscope puncture needle vacuum extractor apparatus structure schematic diagram of a kind of fixing quantity negative pressure of the present invention.A ultrasonic endoscope puncture needle vacuum suction apparatus for fixing quantity negative pressure, described vacuum suction apparatus comprises push-pull bar 1, piston 11, suction pump body 2, anchor tip 13, jointing 3; Described push-pull bar 1 is placed in suction pump body 2; On described suction pump body 2, one end is provided with anchor tip 13, and the other end is provided with jointing 3; Described jointing 3 is provided with check valve 31;
Please refer to Fig. 2, Fig. 2 is suction pump body 2 structural representation, and described suction pump body 2 is marked with rule 21; Described suction pump body 2 is hollow structure;
Please refer to Fig. 3, Fig. 3 is push-pull bar 1 structural representation, and described push-pull bar 1 one end is fixedly connected with piston 11, and the other end is fixedly connected with handle 14; The external diameter of described piston 11 and the diameter compatible of suction pump body 2 close; Described push-pull bar 1 is provided with spacing block set 12; Described spacing block set 12 is single row configuration form.
Please refer to Fig. 4, Fig. 4 is anchor tip 13 structural representation.Described anchor tip 13 comprises sleeve 131, flank 134, connecting hole, spacing draw-in groove 132; Described sleeve 131 is fixed on the outer end of suction pump body 2, and its circular hole 133 matches with suction pump body 2 internal diameter; Described spacing draw-in groove 132 is one; Described spacing draw-in groove 132 matches with push-pull bar 1 upper limit projection 12.
It should be noted that: described check valve 31 forms negative pressure space and extraneous connection status for controlling suction pump body 2, before forming negative pressure, need to select rotary check valve 31, check valve 31 is made to block suction pump body 2 and the extraneous passage be connected, therefore when piston 11 is when push-pull bar 1 is outwards mobile, negative pressure is formed between check valve 31 on suction pump body 2 and piston 11, after setting the negative pressure required for suction lesion tissue, jointing 3 is connected with the suction catheter of puncture needle, then rotary check valve 31, the passage of suction pump body 2 is communicated with the suction catheter passage on puncture needle, because of the effect of negative pressure, its genuine lesion tissue that punctures just can be aspirated,
Described piston 11 and the inner passage compact siro spinning technology of suction pump body 2, in order to strengthen air-tightness, piston 11 outer surface can connect sealing ring; Described suction pump body 2 is marked with rule 21, and the corresponding labelling negative pressure of each scale, just can obtain vacuum magnitude by the size of piston 11 on rule 21, facilitates doctor's operation; Described spacing block set 12 matches with spacing draw-in groove 132, because of spacing block set 12 and spacing draw-in groove 132 coaxial line, when its push-pull bar 1 outwards moves, its spacing block set 12 can pass accurately from spacing draw-in groove 132, and do not affect the movement of push-pull bar 1, after push-pull bar 1 moves to required vacuum magnitude position, rotating sliding bar 1, the spacing block set 12 of required negative pressure is staggered with the direction of spacing draw-in groove 132, the spacing block set 12 of required like this negative pressure is just connected on the end face of anchor tip 13, and then can the size of fixing quantity negative pressure; In addition, because spacing block set 12 defines the axial location of push-pull bar 1, with prior art, rely on manually fixing push-pull bar 1 to compare, can the degree of depth of better anti-puncture pin and angle change, simple to operate, time saving and energy saving.
Embodiment 2
Please refer to Fig. 5, Fig. 5 is the ultrasonic endoscope puncture needle vacuum extractor apparatus structure schematic diagram of another kind of fixing quantity negative pressure of the present invention.A ultrasonic endoscope puncture needle vacuum suction apparatus for fixing quantity negative pressure, described vacuum suction apparatus comprises push-pull bar 1, piston 11, suction pump body 2, anchor tip 13, jointing 3; Described push-pull bar 1 is placed in suction pump body 2; On described suction pump body 2, one end is provided with anchor tip 13, and the other end is provided with jointing 3; Described jointing 3 is provided with check valve 31.
Please refer to Fig. 2, Fig. 2 is suction pump body 2 structural representation, and described suction pump body 2 is marked with rule 21; Described suction pump body 2 is hollow structure.
Please refer to Fig. 6, Fig. 6 is another kind of push-pull bar 1 structural representation; Described push-pull bar 1 one end is fixedly connected with piston 11, and the other end is fixedly connected with handle 14; The external diameter of described piston 11 and the diameter compatible of suction pump body 2 close; Described push-pull bar 1 is provided with spacing block set 12; Described spacing block set 12 is two row's versions, and the spacing block set 12 of its two row is corresponding consistent.
Please refer to Fig. 7, Fig. 7 is another kind of anchor tip 13 structural representation.Described anchor tip 13 comprises sleeve 131, flank 134, connecting hole, spacing draw-in groove 132; Described sleeve 131 is fixed on the outer end of suction pump body 2, and its circular hole 133 matches with suction pump body 2 internal diameter; Described spacing draw-in groove 132 has two; Described spacing draw-in groove 132 matches with push-pull bar 1 upper limit projection 12.
The present embodiment is substantially identical compared with embodiment 1, and its difference is, the spacing block set 12 in this enforcement adopts the spread pattern of two rows, and the spacing block set 12 of its two row is consistent; By the arrangement mode of two row's spacing block sets 12; can two spacing block sets 12 be connected on anchor tip 13 end face simultaneously; be applicable to the occasion that negative pressure is larger; because negative pressure is large; it is larger to the active force of push-pull bar 1, and its active force is balanced by two spacing block sets 12, has protective effect to projection; prevent from avoiding, because the power of push-pull bar 1 under suction function concentrates on spacing block set 12, spacing block set 12 being damaged.
Embodiment 3
Please refer to Fig. 8, Fig. 8 is the ultrasonic endoscope puncture needle vacuum extractor apparatus structure schematic diagram of another kind of fixing quantity negative pressure of the present invention.A ultrasonic endoscope puncture needle vacuum suction apparatus for fixing quantity negative pressure, described vacuum suction apparatus comprises push-pull bar 1, piston 11, suction pump body 2, anchor tip 13, jointing 3; Described push-pull bar 1 is placed in suction pump body 2; On described suction pump body 2, one end is provided with anchor tip 13, and the other end is provided with jointing 3; Described jointing 3 is provided with check valve 31.
Please refer to Fig. 2, Fig. 2 is suction pump body 2 structural representation, and described suction pump body 2 is marked with rule 21; Described suction pump body 2 is hollow structure.
Please refer to Fig. 9, Fig. 9 is another kind of push-pull bar 1 structural representation.Described push-pull bar 1 one end is fixedly connected with piston 11, and the other end is fixedly connected with handle 14; The external diameter of described piston 11 and the diameter compatible of suction pump body 2 close; Described push-pull bar 1 is provided with spacing block set 12; Described spacing block set 12 is three row's versions, and spacing block set 12 angle on same cross section of its three row is 120 degree.
Please refer to Figure 10, Figure 10 is another kind of anchor tip 13 structural representation.Described anchor tip 13 comprises sleeve 131, flank 134, connecting hole, spacing draw-in groove 132; Described sleeve 131 is fixed on the outer end of suction pump body 2, and its circular hole 133 matches with suction pump body 2 internal diameter; Described spacing draw-in groove 132 has three; Described spacing draw-in groove 132 matches with push-pull bar 1 upper limit projection 12.
The present embodiment is substantially the same manner as Example 1, and difference is, in the present embodiment, spacing block set 12 adopts the version of three rows, and spacing block set 12 angle on push-pull bar 1 on same cross section is 120 degree.Its spacing block set 12 adopts the version of three rows, under stationary state, has three spacing block sets 12 to act on the end of anchor tip 13 simultaneously, and stability is strong, prevents push-pull bar 1 distortion.
Embodiment 4
Please refer to Figure 11, Figure 11 is the ultrasonic endoscope puncture needle vacuum extractor apparatus structure schematic diagram of another kind of fixing quantity negative pressure of the present invention.A ultrasonic endoscope puncture needle vacuum suction apparatus for fixing quantity negative pressure, described vacuum suction apparatus comprises push-pull bar 1, piston 11, suction pump body 2, anchor tip 13, jointing 3; Described push-pull bar 1 is placed in suction pump body 2; On described suction pump body 2, one end is provided with anchor tip 13, and the other end is provided with jointing 3; Described jointing 3 is provided with check valve 31.
Please refer to Fig. 2, Fig. 2 is suction pump body 2 structural representation, and described suction pump body 2 is marked with rule 21; Described suction pump body 2 is hollow structure.
Please refer to Figure 12, Figure 12 is another kind of push-pull bar 1 structural representation; Described push-pull bar 1 one end is fixedly connected with piston 11, and the other end is fixedly connected with handle 14; The external diameter of described piston 11 and the diameter compatible of suction pump body 2 close; Described push-pull bar 1 is provided with spacing block set 12; Described spacing block set 12 is four row's versions, and the spacing block set 12 of its four row is corresponding consistent.
Please refer to Figure 13, Figure 13 is another kind of anchor tip 13 structural representation.Described anchor tip 13 comprises sleeve 131, flank 134, connecting hole, spacing draw-in groove 132; Described sleeve 131 is fixed on the outer end of suction pump body 2, and its circular hole 133 matches with suction pump body 2 internal diameter; Described spacing draw-in groove 132 has four; Described spacing draw-in groove 132 matches with push-pull bar 1 upper limit projection 12.
The present embodiment is substantially the same manner as Example 1, difference is, adopt spacing block set 12 to adopt the form of four rows in the present embodiment, and the spacing block set 12 on push-pull bar 1 cross section intersects mutually, the spacing draw-in groove 132 on the preferred same cross section of push-pull bar 1 is in cross, handling good, can move accurately when push-pull bar 1 is moved, there is positioning action, avoid push-pull bar 1 outwards to move in the process forming negative pressure, because of misoperation, cause push-pull bar 1 inclination movement.
Embodiment 5
Please refer to Figure 14, Figure 14 is the ultrasonic endoscope puncture needle vacuum extractor apparatus structure schematic diagram of another kind of fixing quantity negative pressure of the present invention.A ultrasonic endoscope puncture needle vacuum suction apparatus for fixing quantity negative pressure, described vacuum suction apparatus comprises push-pull bar 1, piston 11, suction pump body 2, anchor tip 13, jointing 3; Described push-pull bar 1 is placed in suction pump body 2; On described suction pump body 2, one end is provided with anchor tip 13, and the other end is provided with jointing 3; Described jointing 3 is provided with check valve 31.
Please refer to Fig. 2, Fig. 2 is suction pump body 2 structural representation, and described suction pump body 2 is marked with rule 21; Described suction pump body 2 is hollow structure.
Please refer to Figure 15, Figure 15 is a kind of push-pull bar 1 structural representation; Described push-pull bar 1 one end is fixedly connected with piston 11, and the other end is fixedly connected with handle 14; The external diameter of described piston 11 and the diameter compatible of suction pump body 2 close; Described push-pull bar 1 is provided with spacing block set 12; Described spacing block set 12 is two row's versions, spacing block set 12 arrangement straggly of its two row.
Please refer to Fig. 7, Fig. 7 is a kind of anchor tip 13 structural representation.Described anchor tip 13 comprises sleeve 131, flank 134, connecting hole, spacing draw-in groove 132; Described sleeve 131 is fixed on the outer end of suction pump body 2, and its circular hole 133 matches with suction pump body 2 internal diameter; Described spacing draw-in groove 132 has two; Described spacing draw-in groove 132 matches with push-pull bar 1 upper limit projection 12.
The present embodiment is substantially the same manner as Example 1, and difference is, adopts arrangement mode mutually straggly in the present embodiment, and its spacing block set 12 mutually straggly makes vacuum cavitations expanded range, further fixing quantity vacuum magnitude.
Embodiment 6
Please refer to Figure 16, Figure 16 is the ultrasonic endoscope puncture needle vacuum extractor apparatus structure schematic diagram of another kind of fixing quantity negative pressure of the present invention.A ultrasonic endoscope puncture needle vacuum suction apparatus for fixing quantity negative pressure, described vacuum suction apparatus comprises push-pull bar 1, piston 11, suction pump body 2, anchor tip 13, jointing 3; Described push-pull bar 1 is placed in suction pump body 2; On described suction pump body 2, one end is provided with anchor tip 13, and the other end is provided with jointing 3; Described jointing 3 is provided with check valve 31.
Please refer to Figure 17, Figure 17 is another kind of suction pump body 2 structural representation, and described suction pump body 2 is marked with rule 21; Described suction pump body 2 is hollow structure; Described suction pump body 2 is also provided with vernier knob 4, and its vernier knob 4 end is provided with gear 41, and gear 41 is arranged on on the orthogonal direction of spacing block set 12; This mounting means ensure that gear 41 has revolution space on its body of attraction.
Please refer to Figure 18, Figure 18 is another kind of push-pull bar 1 structural representation; Described push-pull bar 1 one end is fixedly connected with piston 11, and the other end is fixedly connected with handle 14; The external diameter of described piston 11 and the diameter compatible of suction pump body 2 close; Described push-pull bar 1 is provided with spacing block set 12; Described spacing block set 12 liang row version, spacing block set 12 spacing block set 12 of its two row is corresponding consistent; Described push-pull bar 1 is also provided with gear grooved 42; Described gear grooved 42 engages each other with gear 41.
Please refer to Fig. 7, Fig. 7 another kind is anchor tip 13 structural representation.Described anchor tip 13 comprises sleeve 131, flank 134, connecting hole, spacing draw-in groove 132; Described sleeve 131 is fixed on the outer end of suction pump body 2, and its circular hole 133 matches with suction pump body 2 internal diameter; Described spacing draw-in groove 132 has two; Described spacing draw-in groove 132 matches with push-pull bar 1 upper limit projection 12.
The present embodiment is substantially the same manner as Example 1, its difference is, the present embodiment is provided with vernier knob 4, gear 41, gear grooved 42, by the rotary motion of vernier knob 4 energy control gear 41, and gear 41 and push-pull bar 1 cog, groove 42 engages each other, therefore when gear 41 rotates, drive push-and-pull fine setting simultaneously, and then realize finely tuning vacuum magnitude.
The ultrasonic endoscope puncture needle vacuum suction apparatus of a kind of fixing quantity negative pressure of the present invention, can fixing quantity vacuum magnitude, different negative pressure can be used for puncture needle and aspirates different lesion tissue, it is made fully to aspirate lesion tissue, avoid because negative pressure is excessive or too small, suction not exclusively, reduces operation easier, and angle and the degree of depth of micro-positioning regulators negative pressure, simple to operate, puncture needle are stablized; Push-pull bar 1 is provided with multi-form spacing block set 12, its single spacing block set 12 structure is simple, the spacing block set 12 of two rows can avoid force localization on spacing block set 12, spacing block set 12 is avoided to damage, the spacing block set 12 of three rows, good stability, the spacing block set 12 of four rows is handling good, for different occasion, required spacing block set 12 spread pattern can be selected; Suction pump body 2 is provided with rule 21, accurately can show vacuum magnitude, facilitates doctor to judge thus operates accordingly; Suction pump body 2 is also provided with vernier knob 4, vernier knob 4, gear 41, gear grooved 42, by the rotary motion of vernier knob 4 energy control gear 41, and gear 41 and push-pull bar 1 cog, groove 42 engages each other, when wheel rotates, drive push-and-pull fine setting simultaneously, and then realize finely tuning vacuum magnitude.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the inventive method; can also make some improvement and supplement, these improve and supplement and also should be considered as protection scope of the present invention.
Claims (8)
1. a ultrasonic endoscope puncture needle vacuum suction apparatus for fixing quantity negative pressure, it is characterized in that, described vacuum suction apparatus comprises push-pull bar, piston, suction pump body, anchor tip, jointing; Described push-pull bar is placed in suction pump body; On described suction pump body, one end is provided with anchor tip, and the other end is provided with jointing; Described jointing is provided with check valve; Described suction pump body is marked with rule; Described suction pump body is hollow structure; Described push-pull bar one end is fixedly connected with piston, and the other end is fixedly connected with hands handle; The external diameter of described piston and the diameter compatible of suction pump body close; Described push-pull bar is provided with spacing block set; Described anchor tip comprises sleeve, flank, connecting hole, spacing draw-in groove; Described sleeve is fixed on the outer end of suction pump body, and its circular hole and suction pump body internal diameter match; Described spacing draw-in groove and push-pull bar upper limit projection match.
2. puncture needle vacuum suction apparatus according to claim 1, is characterized in that, described spacing draw-in groove is one; Described spacing block set is single row configuration form.
3. puncture needle vacuum suction apparatus according to claim 1, is characterized in that, described spacing draw-in groove is two; Described spacing block set is two row's versions, and the spacing block set of its two row is corresponding consistent.
4. puncture needle vacuum suction apparatus according to claim 1, is characterized in that, described spacing draw-in groove is three; Described spacing block set is three row's versions.Spacing block set angle on same cross section of its three row is 120 degree.
5. puncture needle vacuum suction apparatus according to claim 1, is characterized in that, described spacing draw-in groove is four, and the spacing draw-in groove on same cross section is cross; Described spacing block set is four row's versions.
6. puncture needle vacuum suction apparatus according to claim 1, is characterized in that, described spacing draw-in groove is two; Described spacing block set is two row's versions, the spacing block set arrangement straggly of its two row.
7. puncture needle vacuum suction apparatus according to claim 1, is characterized in that, described spacing described suction pump body is also provided with vernier knob, and its vernier knob end is provided with gear, and gear is arranged on spacing block set on orthogonal direction.
8. puncture needle vacuum suction apparatus according to claim 1, is characterized in that, described push-pull bar is also provided with gear grooved; Described gear grooved and gear engage each other.
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| CN201510725207.XA CN105193461B (en) | 2015-10-30 | 2015-10-30 | A kind of endoscopic ultrasonography puncture needle vacuum extractor device quantitatively controlling negative pressure |
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| CN105662485A (en) * | 2016-03-28 | 2016-06-15 | 西南医科大学附属医院 | Pressure-readable negative-pressure puncture device |
| CN105797223A (en) * | 2016-05-16 | 2016-07-27 | 北京迪玛克医药科技有限公司 | Aspirator |
| CN105877787A (en) * | 2016-03-28 | 2016-08-24 | 西南医科大学附属医院 | Negative pressure puncture needle cylinder |
| CN106950083A (en) * | 2017-06-01 | 2017-07-14 | 深圳市港科深研生物科技有限公司 | A kind of preposition suction gun of multichannel and attractor |
| CN109674580A (en) * | 2019-02-14 | 2019-04-26 | 中国医学科学院北京协和医院 | Auripuncture negative suction system |
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| CN115813453A (en) * | 2022-11-16 | 2023-03-21 | 南京康友医疗科技有限公司 | Negative pressure suction biopsy needle |
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| CN105662485A (en) * | 2016-03-28 | 2016-06-15 | 西南医科大学附属医院 | Pressure-readable negative-pressure puncture device |
| CN105662485B (en) * | 2016-03-28 | 2018-06-22 | 西南医科大学附属医院 | The readable negative pressure puncture device of pressure |
| CN105797223A (en) * | 2016-05-16 | 2016-07-27 | 北京迪玛克医药科技有限公司 | Aspirator |
| CN105797223B (en) * | 2016-05-16 | 2018-03-30 | 北京迪玛克医药科技有限公司 | Aspirator |
| CN106950083A (en) * | 2017-06-01 | 2017-07-14 | 深圳市港科深研生物科技有限公司 | A kind of preposition suction gun of multichannel and attractor |
| CN109674580A (en) * | 2019-02-14 | 2019-04-26 | 中国医学科学院北京协和医院 | Auripuncture negative suction system |
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| CN110812547A (en) * | 2019-12-09 | 2020-02-21 | 湖南平安医械科技有限公司 | Pressure-maintaining type negative pressure suction and discharge device |
| CN111135355A (en) * | 2020-02-19 | 2020-05-12 | 鹤壁市人民医院 | Clinical drainage device of first breast |
| CN115813453A (en) * | 2022-11-16 | 2023-03-21 | 南京康友医疗科技有限公司 | Negative pressure suction biopsy needle |
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