CN109452957A - A kind of spiral case rotary-cutting type co-axial technique biopsy needle - Google Patents
A kind of spiral case rotary-cutting type co-axial technique biopsy needle Download PDFInfo
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- CN109452957A CN109452957A CN201910029519.5A CN201910029519A CN109452957A CN 109452957 A CN109452957 A CN 109452957A CN 201910029519 A CN201910029519 A CN 201910029519A CN 109452957 A CN109452957 A CN 109452957A
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- 238000001574 biopsy Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 144
- 239000002874 hemostatic agent Substances 0.000 claims abstract description 38
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 239000000741 silica gel Substances 0.000 claims description 17
- 229910002027 silica gel Inorganic materials 0.000 claims description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 7
- 239000008280 blood Substances 0.000 claims description 3
- 210000004369 blood Anatomy 0.000 claims description 3
- 210000004204 blood vessel Anatomy 0.000 abstract description 8
- 206010049750 Tumour haemorrhage Diseases 0.000 abstract 1
- 238000013188 needle biopsy Methods 0.000 abstract 1
- 210000001519 tissue Anatomy 0.000 description 41
- 238000005070 sampling Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 239000000523 sample Substances 0.000 description 8
- 208000027418 Wounds and injury Diseases 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000000284 extract Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 206010028980 Neoplasm Diseases 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 230000023597 hemostasis Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 241000256852 Aculeata Species 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 2
- 241001232809 Chorista Species 0.000 description 2
- 230000037005 anaesthesia Effects 0.000 description 2
- 238000001949 anaesthesia Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 206010001526 Air embolism Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000036407 pain Effects 0.000 description 1
- 238000010827 pathological analysis Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0266—Pointed or sharp biopsy instruments means for severing sample
- A61B10/0275—Pointed or sharp biopsy instruments means for severing sample with sample notch, e.g. on the side of inner stylet
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B2010/009—Various features of diagnostic instruments
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to a kind of spiral case rotary-cutting type co-axial technique biopsy needles, including the needle, coaxial sleeve needle of drawing materials, coaxial sleeve needle guard is in close contact in the periphery of materials needle, the inner surface of coaxial sleeve needle and the outer surface of materials needle and materials needle can move freely in coaxial sleeve needle；Draw materials needle from front to back successively include needle tip, spiral case rotary-cut portion, shank portion, handle portion, spiral case rotary-cut portion's entire body be cross section in "" shape peeling knife, cutting edge is outwardly；Taper-cut face is arranged in the front end of coaxial sleeve needle, and rear end setting clamps flap valve, clamps the outer surface setting screw thread of flap valve, works in coordination with the screw thread of gripping sleeve inner surface.The present invention is not easy to be damaged to blood vessel when puncturing, and realizes a coaxial needle biopsy, and guarantees coaxial channel always with extraneous air-tight state, and can also realize prevents tumor hemorrhage to materials tissue injection hemostat while puncturing materials, reduces operation risk.
Description
Technical field
The invention belongs to area of medical devices, are related to a kind of spiral case rotary-cutting type co-axial technique biopsy needle.
Background technique
With the continuous development of accurate medicine, accurate pathological diagnosis and genetic test are essential, percutaneous punctures
Biopsy sampling is small to the wound of puncturing tissue, and bleeding is few, and safer, so using more and more.Prior art puncture needle point
For cutting type and gripping-type, but there are the following problems: 1, being all easily damaged to distal vessels using spring excitation；2, puncture channel
Poor sealing performance, air are easy to enter in tissue by puncture channel, form pneumoderm or air embolism complication；
3, it cannot accomplish to puncture synchronous hemostasis in materials, since most of tumor tissues blood supply is abundant, easily bleeding after materials；4, previous
It realizes that single punctures the demand repeatedly drawn materials and needs to establish channel by coaxial sleeve needle, then biopsy needle is inserted into coaxial sleeve
It is just able to achieve in pipe, has virtually aggravated the financial burden of patient.
Such as application No. is 201610792736.6 Chinese patent applications, disclose a kind of spiral soft tissue biopsy needle,
Spiral shank front end is equipped with a spring helix tube, will sample sample by rotation spiral shank and be embedded in spiral pipe screw thread, and with
Cutting shank matches cutting.The present invention can be realized a multidraw of different location on the same line, still, spiral
Shank is easily wound and the capillary pulled apart positioned at site of puncture causes bleeding；More a, side additionally, due to the circle number of rotation
Experience and skill requirement in face of operative doctor is higher, on the other hand causes biggish psychological pressure to local anaesthesia patient.Foundation is worn
Behind transfixation road, air easily enters in vivo along puncture needle, increases operation risk.And it organizes to be wound into spiral shank after drawing materials
It is not easily taken out.
Summary of the invention
In view of the above-mentioned problems, the present invention is intended to provide a kind of spiral case rotary-cutting type co-axial technique biopsy needle, the first purpose are
Cutting, the excitation apparatus for changing existing puncture needle, are reduced or avoided injury of blood vessel；Realize that single punctures repeatedly materials simultaneously.
The technical solution taken to achieve the above object is a kind of spiral case rotary-cutting type co-axial technique biopsy needle, including is taken
Material needle, coaxial sleeve needle, coaxial sleeve needle guard is in the periphery of materials needle, the inner surface of coaxial sleeve needle and the outer surface of materials needle
It is in close contact and materials needle can move freely in coaxial sleeve needle；Needle of drawing materials successively includes needle tip, spiral shell from front to back
Shell rotary-cut portion, shank portion, handle portion, spiral case rotary-cut portion entire body are in for cross sectionThe peeling knife of shape, cutting edge is outwardly；Coaxial sleeve
Taper-cut face is arranged in the front end of pipe needle, and rear end setting clamps flap valve, the outer surface setting screw thread of flap valve is clamped, with gripping sleeve
The screw thread of inner surface is worked in coordination.
The design advantage in spiral case rotary-cut of the present invention portion is, when having blood vessel in materials channel, since blood vessel has elasticity, because
This blood vessel when drawing materials needle circumgyration incision can pop up spiral case rotary-cut slot, reduce injury of blood vessel probability, avoid spring excitation cutting
The drawbacks of tissue cutting blood vessel.In addition, the design in spiral case rotary-cut portion can will sample group in the case where needle rotation of drawing materials is turned around
Rotary-cut is knitted in rotary-cut portion, completes coaxial biopsy, the experience and level of skill requirement to operative doctor are lower, while can effectively contract
Short operation sample time mitigates sufferer pain.The needle tip knot of coaxial sleeve needle cut surface and materials needle front end when puncturing tissue
Conjunction forms puncture needle needle point, and coaxial sleeve needle cut surface plays the secondary cut to tissue, divides when extracting materials needle after materials
From effect.The integrated design of materials needle, coaxial sleeve needle, can effectively establish puncture channel, meet one-time puncture and repeatedly draw materials
Demand.Coaxial sleeve needle can be fixed on any place of materials needle by clamping flap valve and gripping sleeve cooperation.
Another object of the present invention is to increase the leakproofness of puncture channel.
The technical solution taken to achieve the above object is that silica gel valve, silica gel are arranged inside coaxial sleeve needle rear end
Valve periphery is fixed on coaxial sleeve needle inner wall, and center sets the cross-cut that tolerable materials needle passes through.Draw materials needle extract or
Silica gel valve can be pushed to upper and lower region to, when taking out materials needle, silica gel valve is restored to closing shape when being inserted into coaxial sleeve needle
State plays sealing function.Therefore make coaxial sleeve pin inner chamber in air-tight state after materials needle being extracted in multiple materials, prevent
Only air enters internal.
Preferably, the thickness of silica gel valve periphery is greater than the thickness in center, so that enough supporting roles are played in periphery, in
Centre is then easily sampled needle and opens.
Another object of the present invention is to realize to puncture synchronous hemostasis in materials.
The technical solution taken to achieve the above object is setting hemostat storage warehouse inside materials needle handle portion, and
Equipped with hemostat injection hole, syringe needle can be inserted into storage warehouse by injection hole, it is preoperative that hemostat is injected into storage
In storage, several hemostat tap holes are arranged in materials needle and handle portion intersection below storage warehouse, press after injecting hemostat
Lower portion thereof, hemostat can be flowed out by tap hole, be flowed between coaxial sleeve needle and materials needle along materials needle outer wall
In gap, the top of silica gel valve is terminated in, when extracting materials needle, hemostat is flowed into organization internal along coaxial sleeve needle.
Preferably, handle material uses entire body rigid plastics, is integrally formed, and top solid construction can achieve certain hard
Degree, is easy to hold；Lower section hollow structure, wall is relatively thin, there is certain elasticity, and pressing can squeeze out hemostat.
Preferably, draw materials needle needle tip be prismatic, be inserted into tissue when three face uniform forces, can preferably keep wearing
Pierce biopsy needle puncture path in vivo and direction.Prismatic pin puncture has part dissection to tougher tissue prismatic inclined-plane, more
It is easy to inserting needle.
Preferably, materials needle shank portion setting materials length mark, puncture biopsy needle punctures can be according to disease when drawing materials in place
Become larger small release appropriate length spiral case rotary-cut portion, preferably protects normal tissue organ, and rotation materials needle handle one encloses, will be wait take
Organize rotary-cut to expose coaxial sleeve needle outside spiral case rotary-cut portion in, when extract draw materials needle when coaxial sleeve needle taper-cut face and
Detachment tissue is cut in needle cooperation of drawing materials again.
Preferably, materials needle handle portion outer surface is equipped with non-slip process.
Preferably, coaxial sleeve needle outer wall is marked equipped with paracentesis depth, can indicate puncture biopsy needle insertion depth.
Preferably, the clamping flap valve of coaxial sleeve needle rear end is arranged in three valves cone around coaxial sleeve needle.
Preferably, materials needle shank portion and handle portion in tubular construction, will sample tissue from spiral case with push rod convenient to use
It releases in rotary-cut portion.
Preferably, it to prevent hollow tubular structure from air being caused to enter tissue, is equipped in the tail portion of materials needle handle portion close
Blocking can seal materials needle in puncture, prevent air from entering tissue, intravascular by needle of drawing materials.
Preferably, hemostat injection hole is arranged on the sealing contact surface of handle portion and sealing-plug, sealing-plug play it is close
While envelope materials needle, hemostat injection hole can also be sealed.
For convenience of the taking-up for sampling tissue in materials needle spiral case rotary-cut portion, a kind of tissue push rod is designed, from front end to rear end
It successively include elliptical section, the body of rod, pusher grip, elliptical section and materials needle spiral case rotary-cut portion's interior shape are adapted.
Preferably, the positioning device cooperated in correspondence with each other is respectively set on materials needle and tissue push rod, to guarantee tissue
The elliptical section of push rod can smoothly be inserted into materials needle spiral case rotary-cut portion and the sampling tissue of cutting is released materials needle.
Present invention simultaneously provides a kind of application methods of above-mentioned spiral case rotary-cutting type co-axial technique biopsy needle, including following step
It is rapid:
(1) materials needle is inserted into coaxial sleeve needle, is exposed at the needle tip of materials needle outside coaxial sleeve needle, draws materials
The spiral case rotary-cut portion of needle is all in coaxial sleeve needle；It screws gripping sleeve and clamps the screw thread between flap valve, make coaxial sleeve
Relative position between needle and materials needle is fixed；
(2) hemostat is pumped into syringe, and syringe needle is inserted into the hemostat injection hole at materials needle handle, will only
Blood agent is pushed into hemostat storage warehouse；
(3) sealing-plug is inserted into the tail portion of materials needle handle portion；
(4) puncture biopsy needle is inserted into lesion edge, unscrews gripping sleeve screw thread, release clamps flap valve, by needle of drawing materials
It is separated with coaxial sleeve needle；
(5) according to size of tumor and materials length, materials needle is released into coaxial sleeve needle in conjunction with materials length mark, is reached
Intralesional；
(6) it rotates materials needle handle one along spiral case rotary-cut portion peeling knife edge direction to enclose, by tissue rotary-cut to materials needle
In spiral case rotary-cut portion；
(7) pressing materials needle lower portion thereof, hemostat are flowed into materials needle and coaxial from the discharge of hemostat tap hole automatically
Region on the gap of trochar and silica gel valve；
(8) materials needle, coaxial sleeve needle cut surface secondary cut chorista are extracted, hemostat extracts silicon by materials needle
It the preceding moment that glue valve is closed, is flowed by coaxial sleeve pin inner chamber intralesional；
(9) materials needle back-end sealing plug is removed, is inserted into tissue push rod, tissue push rod elliptical section is made to enter materials needle spiral case
Rotary-cut portion will sample tissue and deviate from out of materials needle；
(10) channel that can iterate through the foundation of coaxial sleeve needle, repeats above operation, and repeatedly draws materials.
Spiral case rotary-cutting type co-axial technique biopsy needle of the invention compared with the prior art, has the advantage that
1, coaxial biopsy, one-time puncture may be implemented in coaxial sleeve needle, sampling probe integrated design, a root puncture biopsy needle
The demand repeatedly drawn materials not only had been able to satisfy the needs that specimen amount is big in clinical detection, but also the expense of patient can be greatly reduced.
2, spring cut mode is abandoned, the mode of spiral case formula circumgyration incision has been used, only need to rotate a circle can will organize
In rotary-cut to materials needle, and greatly reduce injury of blood vessel probability.
3, materials Aculeata is equipped with sealing-plug, and silica gel valve is arranged in trochar, guarantees the gas under various service conditions
Histoorgan and intravascular cannot be entered by materials needle and coaxial sleeve pin inner chamber channel, the blood in tissue will not flow
It arrives in vitro, is remained in puncture process and extraneous sealing state out.
4, it is equipped with hemostat storage warehouse, pressing materials needle handle handle can be automatically injected hemostat after biopsy, play office
The effect of portion's hemostasis, prevents the generation of various complication, reduces operation risk.
Detailed description of the invention
Fig. 1 materials needle construction schematic diagram；
Fig. 2 coaxial sleeve needle construction schematic diagram；
Fig. 3 gripping sleeve structural schematic diagram；
Fig. 4 spiral case rotary-cutting type co-axial technique biopsy pin puncture status diagram；
Fig. 5 spiral case rotary-cutting type co-axial technique biopsy needle samples status diagram；
Fig. 6 spiral case rotary-cutting type co-axial technique biopsy pin puncture effect picture；
Fig. 7 spiral case rotary-cutting type co-axial technique biopsy needle tissue cutting sampling effect picture；
Fig. 8 materials needle spiral case rotary-cut schematic diagram；
Fig. 9 spiral case rotary-cutting type co-axial technique biopsy needle samples Path Setup effect picture；
Figure 10 hemostat sealing system cross-sectional schematic；
Figure 11 organizes pusher structure schematic diagram；
Tissue push rod releases sampling schematic illustration of tissue after Figure 12 materials；
Figure 13 plug construction schematic diagram；
Figure 14 coaxial sleeve backshank cross-sectional schematic；
In Fig. 1-14: 1- sealing-plug；2- handle portion；3- non-slip process；4- hemostat tap hole；5- clamps flap valve；6- folder
Fixed pipe；7- coaxial sleeve needle；8- paracentesis depth label；9- cut surface；10- spiral case rotary-cut portion；11- needle tip；12- shank
Portion；13- materials length mark；14- clamps flap valve screw thread；15- gripping sleeve screw thread；Region on 21- valve；22- silica gel valve；
The subvalvular area 23-；24- hemostat injection hole；25- hemostat storage warehouse；The 30- body of rod；31- pusher grip；32- elliptical section；
33- push rod locating piece；41- sealing-plug head；42- sealing-plug cylindrical portion；43- sealing-plug locating piece；101- samples tissue；102-
Skin；103- tissue to be sampled.
Specific embodiment
Combined with specific embodiments below and attached drawing is described in further details the present invention.
Embodiment 1
A kind of spiral case rotary-cutting type co-axial technique biopsy needle, including materials needle shown in Fig. 1, coaxial sleeve needle shown in Fig. 2, coaxially
Trocar sleeve is in the periphery of materials needle, and as illustrated in figures 4-5, the inner surface of coaxial sleeve needle and the outer surface of materials needle are in close contact
And materials needle can move freely in coaxial sleeve needle；Needle of drawing materials successively includes needle tip 11, spiral case rotary-cut from front to back
Portion 10, shank portion 12, handle portion 2,10 entire body of spiral case rotary-cut portion are in for cross sectionThe peeling knife of shape, cutting edge is outwardly；Coaxially
Taper-cut face 9 is arranged in the front end of trochar, and rear end setting clamps flap valve 5, and screw thread 14 is arranged in the outer surface for clamping flap valve 5, with
The screw thread 15 of gripping sleeve inner surface shown in Fig. 3 is worked in coordination.
Materials needle shank portion 12 setting materials length mark 13, coaxial sleeve needle outer wall are equipped with paracentesis depth label 8.
The application method of above-mentioned spiral case rotary-cutting type co-axial technique biopsy needle are as follows: Enhanced CT is carried out to patient, judges disease
The positional relationship of the risk organs such as stove and peripheral vessels, nerve determines the position of spiral case rotary-cutting type co-axial technique biopsy pin puncture
And angle, and puncture entry point is sketched out in skin corresponding position by the laser localized light comparing inside CT.
(1) materials needle is inserted into coaxial sleeve needle, is exposed at the needle tip 11 of materials needle outside coaxial sleeve needle, takes
The spiral case rotary-cut portion 10 of material needle is all in coaxial sleeve needle；It screws gripping sleeve 6 and clamps the screw thread between flap valve 5, make same
Relative position between pipe spreader needle and materials needle is fixed, as shown in Figure 4；
(2) band sterile gloves sterilize skin centered on skin penetrating entry point, spread surgical operation towel, will after local anaesthesia
Puncture biopsy needle is inserted into lesion edge, as shown in fig. 6, unscrew 6 screw thread of gripping sleeve, release clamps flap valve 5, will materials needle with
The separation of coaxial sleeve needle；
(3) according to size of tumor and materials length, materials needle is released into coaxial sleeve needle in conjunction with materials length mark 13, is arrived
Up to intralesional, as shown in Figure 7；
(4) it rotates materials needle handle 2 one along 10 peeling knife edge direction of spiral case rotary-cut portion to enclose, by tissue rotary-cut to materials
In needle spiral case rotary-cut portion 10, as shown in Figure 8；
(5) materials needle, 9 secondary cut chorista of coaxial sleeve needle cut surface are extracted；
(6) tissue will be sampled with syringe needle to choose from spiral case rotary-cut portion 10；
(7) it as shown in figure 9, the channel of coaxial sleeve needle foundation can be iterated through, repeats above operation, repeatedly draws materials.
Embodiment 2
Unlike the first embodiment, needle shank portion 12 and the handle portion 2 of drawing materials in tubular construction, and in materials needle handle portion 2
Tail portion be equipped with sealing-plug 1, as shown in Fig. 4,5,10.
For convenience of the taking-up for sampling tissue in materials needle spiral case rotary-cut portion 10, tissue push rod as shown in figure 11 is designed, from
Front end successively includes elliptical section 32, the body of rod 30, pusher grip 31 to rear end, inside elliptical section 32 and materials needle spiral case rotary-cut portion 10
Shape is adapted.
Push rod locating piece 33 is set in the rear end of the body of rod 30, setting matches with push rod locating piece 33 in handle portion 2
Push rod positioning groove.Sample successfully after extract materials needle by tissue push rod be inserted into materials needle in, and by push rod locating piece 33 with push away
Bar positioning groove is corresponding, organizes push rod elliptical section 32 that can smoothly be inserted into materials needle spiral case rotary-cut portion 10 for the sampling of cutting at this time
Tissue 101 releases materials needle, as shown in figure 12.
To avoid the push rod positioning groove gas leakage in handle portion 2, matched sealing-plug positioning is set on sealing-plug 1
Block 43, as shown in figure 13.
Correspondingly, (1) afterwards also embodiment 1 the step of for application method: sealing-plug locating piece 43 is directed at materials needle
Sealing-plug 1 is inserted into materials Aculeata by the groove in handle 2.Step (5) is drawn materials after needle completion materials, by needle rear end of drawing materials
Sealing-plug 1 removes, and is inserted into tissue push rod, and tissue will be sampled by so that tissue push rod elliptical section 32 is entered materials needle spiral case rotary-cut portion 10
101 deviate from out of materials needle, as shown in figure 12.
Embodiment 3
As different from Example 2, different positioning device is used between materials needle and tissue push rod.In materials needle handle
Linear mark is drawn in tail portion, while drawing linear mark in tissue pusher grip, when two linear mark connection alignment, organizes push rod
Elliptical section 32 can smoothly be inserted into materials needle spiral case rotary-cut portion 10 and sampling tissue 101 is released materials needle by cutting.
Embodiment 4
As different from Example 2, silica gel valve 22, as shown in figure 14, silica gel valve are set inside coaxial sleeve needle rear end
Coaxial sleeve needle inner wall is fixed in 22 periphery of film, and center, which is set, may be allowed the cross-cut that materials needle passes through, outside silica gel valve 22
The thickness in week is greater than the thickness in center.
Embodiment 5
As different from Example 4, hemostat storage warehouse 25 is set inside needle handle portion 2 of drawing materials, as shown in Figure 10, and
The sealing contact surface of 2 medial surfaces of handle portion, that is, handle portion 2 and sealing-plug 1 is equipped with hemostat injection hole 24, can pass through injection hole
24 are inserted into syringe needle in storage warehouse 25, and hemostat is injected into storage warehouse 25, and injection hole 24 can be by sealing-plug 1
Sealing.Materials needle and 2 intersection of handle portion, are arranged several hemostat tap holes 4 below storage warehouse 25.
Correspondingly, (1) afterwards also embodiment 1 the step of for application method: hemostat is pumped into syringe, by syringe needle
In head insertion hemostat injection hole 24, hemostat is pushed into hemostat storage warehouse 25.After the completion of step (4) rotary-cut, pressing
Draw materials needle lower portion thereof, hemostat automatically from hemostat tap hole 4 be discharged be flowed into materials needle and coaxial sleeve needle gap and
Region 21 on silica gel valve.Coaxial sleeve needle is constituted sealing state jointly by silica gel valve 22 and the hemostat flowed into, prevents sky
Gas enters tissue, intravascular.
Embodiment 6
As different from Example 5, draw materials needle needle tip (11) be prismatic, materials 2 outer surface of needle handle portion be equipped with
Non-slip process 3 (Fig. 1,4,5), the clamping flap valve 5 of coaxial sleeve needle rear end are arranged in three valves cone around coaxial sleeve needle.
Claims (10)
1. a kind of spiral case rotary-cutting type co-axial technique biopsy needle, it is characterised in that: including the needle, coaxial sleeve needle of drawing materials, coaxial sleeve
Needle guard is in close contact in the periphery of materials needle, the inner surface of coaxial sleeve needle and the outer surface of materials needle and materials needle can be coaxial
It is moved freely in trochar；Needle of drawing materials successively includes needle tip (11), spiral case rotary-cut portion (10), shank portion from front to back
(12), handle portion (2), spiral case rotary-cut portion (10) entire body are in for cross sectionThe peeling knife of shape, cutting edge is outwardly；Coaxial sleeve needle
Front end be arranged taper-cut face (9), rear end setting clamp flap valve (5), clamp flap valve (5) outer surface be arranged screw thread (14),
It works in coordination with the screw thread (15) of gripping sleeve (6) inner surface.
2. spiral case rotary-cutting type co-axial technique biopsy needle according to claim 1, it is characterised in that: in coaxial sleeve needle rear end
Silica gel valve (22) are arranged in portion, and coaxial sleeve needle inner wall is fixed in silica gel valve (22) periphery, and center sets cross-cut.
3. spiral case rotary-cutting type co-axial technique biopsy needle according to claim 2, it is characterised in that: silica gel valve (22) periphery
Thickness be greater than center thickness.
4. spiral case rotary-cutting type co-axial technique biopsy needle according to claim 2, it is characterised in that: materials needle handle portion (2)
Inside setting hemostat storage warehouse (25), and hemostat injection hole (24) are equipped with, materials needle and handle portion (2) intersection, only
Several hemostat tap holes (4) are set below blood storage warehouse (25).
5. spiral case rotary-cutting type co-axial technique biopsy needle according to claim 1 to 4, it is characterised in that: materials needle shank
Portion (12) setting materials length mark (13), coaxial sleeve needle (7) outer wall are equipped with paracentesis depth label (8).
6. spiral case rotary-cutting type co-axial technique biopsy needle according to claim 1 to 4, it is characterised in that: coaxial sleeve needle
The clamping flap valve (5) of rear end is in three valves cone.
7. spiral case rotary-cutting type co-axial technique biopsy needle according to claim 1 to 4, it is characterised in that: materials needle shank
Portion (12) and handle portion (2) in tubular construction, and are equipped with sealing-plug (1) in the tail portion of materials needle handle portion (2).
8. spiral case rotary-cutting type co-axial technique biopsy needle according to claim 7, it is characterised in that: hemostat injection hole (24)
It is arranged on the sealing contact surface of handle portion (2) and sealing-plug (1).
9. spiral case rotary-cutting type co-axial technique biopsy needle according to claim 7 or 8, it is characterised in that: further include it is a kind of with
The tissue push rod that materials needle is used cooperatively, successively includes elliptical section (32), the body of rod (30), pusher grip from front end to rear end
(31), elliptical section (32) and materials needle spiral case rotary-cut portion (10) interior shape are adapted.
10. spiral case rotary-cutting type co-axial technique biopsy needle according to claim 9, it is characterised in that: in materials needle and tissue
The positioning device cooperated in correspondence with each other is respectively set on push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910029519.5A CN109452957A (en) | 2019-01-13 | 2019-01-13 | A kind of spiral case rotary-cutting type co-axial technique biopsy needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910029519.5A CN109452957A (en) | 2019-01-13 | 2019-01-13 | A kind of spiral case rotary-cutting type co-axial technique biopsy needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109452957A true CN109452957A (en) | 2019-03-12 |
Family
ID=65616211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910029519.5A Pending CN109452957A (en) | 2019-01-13 | 2019-01-13 | A kind of spiral case rotary-cutting type co-axial technique biopsy needle |
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| Country | Link |
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| CN (1) | CN109452957A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111568478A (en) * | 2020-05-25 | 2020-08-25 | 乔柱 | Tumor sampling device |
| CN113303837A (en) * | 2021-06-03 | 2021-08-27 | 江阴励德医疗科技有限公司 | Biopsy needle for cutting tissue through rotating needle sheath |
-
2019
- 2019-01-13 CN CN201910029519.5A patent/CN109452957A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111568478A (en) * | 2020-05-25 | 2020-08-25 | 乔柱 | Tumor sampling device |
| CN113303837A (en) * | 2021-06-03 | 2021-08-27 | 江阴励德医疗科技有限公司 | Biopsy needle for cutting tissue through rotating needle sheath |
| CN113303837B (en) * | 2021-06-03 | 2023-02-21 | 江阴励德医疗科技有限公司 | Biopsy needle for cutting tissue through rotating needle sheath |
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