CN105943091A - Endoscopic biopsy apparatus - Google Patents

Endoscopic biopsy apparatus Download PDF

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Publication number
CN105943091A
CN105943091A CN201610378737.6A CN201610378737A CN105943091A CN 105943091 A CN105943091 A CN 105943091A CN 201610378737 A CN201610378737 A CN 201610378737A CN 105943091 A CN105943091 A CN 105943091A
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CN
China
Prior art keywords
handle
needle
tube
needle tubing
scale
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610378737.6A
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Chinese (zh)
Inventor
盛健
董小娥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Fa Maite Development In Science And Technology Co Ltd
Original Assignee
Nanjing Fa Maite Development In Science And Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Fa Maite Development In Science And Technology Co Ltd filed Critical Nanjing Fa Maite Development In Science And Technology Co Ltd
Priority to CN201610378737.6A priority Critical patent/CN105943091A/en
Publication of CN105943091A publication Critical patent/CN105943091A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02Instruments for taking cell samples or for biopsy
    • A61B10/0233Pointed or sharp biopsy instruments
    • A61B10/0266Pointed or sharp biopsy instruments means for severing sample
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02Instruments for taking cell samples or for biopsy
    • A61B10/04Endoscopic instruments
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02Instruments for taking cell samples or for biopsy
    • A61B10/04Endoscopic instruments
    • A61B2010/045Needles

Abstract

The invention discloses an endoscopic biopsy apparatus which comprises a handle assembly, an outer tube, a limiting piece, a needle tubing and an inner core wire. The handle assembly is composed of an adjustment handle, an outer tube handle, a limiting ring, an operation handle, a scale core rod, a needle tubing operation handle and an inner core wire control handle. The adjustment handle, the limiting ring and the operation handle are all arranged on the scale core rod and connected into a whole through the scale core rod. The outer tube handle is arranged in the adjustment handle and connected with the outer tube. The outer tube is connected with the scale core rod. The needle tubing operation handle is connected with the operation handle in a screwed mode. The operation handle is connected with the limiting piece in an inserted mode. The needle tubing is composed of a needle point section at the far end and a needle body section behind the needle point section. The needle tubing is located in the outer tube. The needle point section penetrates out of the far end of the outer tube. The needle body section is fixedly connected with the needle tubing operation handle. The inner core wire penetrates into the needle tubing. The far end of the inner core wire goes beyond the needle point end, and the near end of the inner core wire is connected with the inner core wire control handle. The biopsy operation is greatly simplified, the success rate and safety of operation are improved, operators can be easily trained, and wide promotion is easy.

Description

A kind of through scope aspiration biopsy apparatus
Technical field
The invention belongs to technical field of medical instruments, particularly relate to a kind of through scope aspiration biopsy apparatus.
Background technology
It is a kind of Wicresoft's Clinics completed through scope working clamp road through scope puncture technique, although belong to senior endoscopic technic, but over nearly 30 years, has obtained the development of maturation in the whole world.This technology is, by puncturing realization acquisition cell, tissue, the diagnosis specimen of liquid, also to carry out tapping treatment, moreover it is possible to realize the purpose of injection for curing.Presently used in the scope punctured, generally include ultrasonic endoscope and the puncture of non-ultrasonic endoscope (i.e. common scope), wherein, according in the application of Different Organs and the difference of design, it is specifically related to puncture through tracheascope, punctures through trachea ultrasonic endoscope, punctures through digestive endoscopy, through digestive tract ultrasonic endoscope puncture etc..
China's publication CN200580051293.5 relate to one " sample collection method that endoscopic therapeutic device and biological tissue's analysis process system and fabric analysis process ", is a kind of tubulose puncture needle through endoscopic forceps channel;United States Patent (USP) US7641638B2 relates to a kind of through scope puncture instrument, uses syringe pump, puncture needle tubing, seal wire to share the design of unique passage, and its metal needle tubing is connected at the far-end of plastic tube with plastic tube, is easier to lateral bending to its needle tubing distal section;United States Patent (USP) US4966162 relates to a kind of endoscopic instruments, has a vertical people having a common goal in side, needle tubing control zone, is used for connecting syringe, is sampled by cytology brush.Serial puncture needle patent US4791937 that this inventor is correlated with, US7147607B2, US7204812B2, its lancet design the most only applies to the puncture through tracheascope;United States Patent (USP) US7981052B2 relates to a kind of biopsy needle under endoscopic mucosal, and its innovation is using a kind of needle point assisting interior pin to be prone to thrust relating to of tissue with needle point.
When the common feature of existing puncture needle product is cutting operation, infinite place of dropping back, needle point easily pulls out mucosa, and vacuum suction was lost efficacy, and causes operative failure, and operation success rate is the lowest, this strongly limits the range of application of puncture needle product.Puncture needle product with interior core filaments, it is necessary first to puncture again in interior core filaments is retracted needle tubing, interior core filaments is resetted, there is foreign body as in needle tubing, just headed in human body by interior core filaments, this will bring serious potential safety hazard to patient.
Summary of the invention
For the problems referred to above, the technical problem to be solved in the present invention is to provide a kind of through scope aspiration biopsy apparatus.
nullThe one of the present invention is through scope aspiration biopsy apparatus,Including Handleset、Outer tube、Locating part、Needle tubing and interior core filaments,Described Handleset is by regulating handle、Outer tube handle、Spacing collar、Operation handle、Scale core bar、Needle tubing operation handle and interior core filaments joystick composition,Described regulation handle、Spacing collar and operation handle are all provided with being concatenated into integrative-structure on scale core bar and by scale core bar,Described outer tube handle is located in regulating handle and is connected outer tube,Described outer tube is connected with scale core bar,Described needle tubing operation handle spins with operation handle,Described operation handle plug-in connection finite place piece,Described needle tubing is made up of the needle body section after being positioned at the needle point section of far-end and needle point section,Described needle tubing is positioned at outer tube,Described needle point section passes the far-end of outer tube,Needle body section is fixing connects needle tubing operation handle,Described interior core filaments penetrates in needle tubing,Described interior core filaments far-end exceeds needle tip,Near-end connects interior core filaments joystick.
Preferably, described needle tubing diameter is less than outer tube diameter.
Preferably, described interior core filaments cross section be the far-end of semicircle and interior core filaments be a time round end.
Preferably, described inner core filament length degree more than needle tubing length and leaves axial lacuna between interior core filaments and needle tubing.
Preferably, described outer tube material is polyether-ether-ketone, and described outer tube corner is fillet structure.
Preferably, described needle point section is that two sharp keen inclined-planes and back segment are through blasting treatment.
Preferably, described needle cannula material is rustless steel, Ultimum Ti material.
Preferably, described interior core filaments joystick uses female Luer design.
Preferably, described regulation handle and spacing collar are all located on scale core bar and are fastened by bolt lock.
Preferably, described scale core bar is provided with scale.
The method have the benefit that the design of the present invention can meet the needs that any ultrasonic endoscope of digestive tract and trachea mediates, it may also be used for through the pincers road of non-ultrasonic endoscope, it is achieved direct-view lower aspiration biopsy, drawing liquid etc..Change traditional maloperation simultaneously, in operation, patient can freely lift puncture needle, implement the cutting of tissue, needing not worry about needle point in operating process to skid off from mucosa, high degree simplifies puncture procedure, improves processing safety, change traditional interior core filaments first being recalled in needle tubing, after puncture, release the risk bringing potential safety hazard to patient again.
The unique design on needle point two inclined-plane of the present invention, punctures satisfactory for result, is especially suitable for obtaining growth structure specimen;The design of interior core filaments retraction pinpoint inclined plane, has stopped the security risk of foreign substance;The blasting treatment of needle point rear end, meets ultrasonic lower development, reaches the lower motion of naked eyes direct-view;Needle tubing operation handle is detachable, carries out needle tubing replacing, economizes on resources.
Accompanying drawing illustrates:
For ease of explanation, the present invention is embodied as and accompanying drawing is described in detail by following.
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is Handleset structural representation.
Fig. 3 is needle point section part-structure schematic diagram.
Fig. 4 is needle point section partial cross structural representation.
Fig. 5 is that interior core filaments recalls needle point section inclined-plane sectional structure schematic diagram.
Fig. 6 is locating part structural representation.
In figure, core filaments in 1-;2-needle tubing;3-outer tube;4-regulates handle;5-scale core bar;6-spacing collar;7-operates handle;Core filaments joystick in 8-;9-bolt;10-locating part;11-outer tube handle;12-scale;13-needle tubing operation handle;14-needle point section two inclined-plane;15-blasting treatment;16-fillet structure.
Detailed description of the invention:
For making the object, technical solutions and advantages of the present invention of greater clarity, below by the specific embodiment shown in accompanying drawing, the present invention is described.However, it should be understood that these describe the most exemplary, and it is not intended to limit the scope of the present invention.Additionally, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring idea of the invention.
nullAs shown in figures 1 to 6,The present invention provides a kind of technical scheme: a kind of through scope aspiration biopsy apparatus,Including Handleset、Outer tube 3、Locating part 10、Needle tubing 2 and interior core filaments 1,Described Handleset is by regulating handle 4、Outer tube handle 11、Spacing collar 6、Operation handle 7、Scale core bar 5、Needle tubing operation handle 13 and interior core filaments joystick 8 form,Described regulation handle 4、Spacing collar 6 and operation handle 7 are all located on scale core bar 5 and are concatenated into integrative-structure by scale core bar 5,Described outer tube handle 11 is located in regulating handle 4 and is connected outer tube 3,Described outer tube 3 is connected with scale core bar 5,Described needle tubing operation handle 13 spins with operation handle 7,Described operation handle 7 plug-in connection finite place piece 10,Described needle tubing 2 is made up of the needle body section after being positioned at the needle point section of far-end and needle point section,Described needle tubing 2 is positioned at outer tube 3,Described needle point section passes the far-end of outer tube 3,Needle body section is fixing connects needle tubing operation handle 13,Described interior core filaments 1 penetrates in needle tubing 2,Described interior core filaments 1 far-end exceeds needle tip,Near-end connects interior core filaments joystick 8.
Specifically, within needle tubing 2 is positioned at outer tube 3 and its diameter is made up of needle point section and the needle body section of one less than the internal diameter of outer tube 3, needle tubing 2, needle point section can pass the far-end of outer tube 3;The cross section of interior core filaments 1 is semicircle and more than needle tubing length, leaves axial lacuna between interior core filaments 1 and needle tubing 2, and far-end passes the far-end of described needle point section.
Specifically, outer tube 3 material is polyether-ether-ketone, and length can process different preferred lengths according to different needs for bronchoscope, digestive endoscope etc..The effect of outer tube 3 be formed needle tubing 2 and internal instrument thereof in pincers road safety, smooth and easy pass through.Outer tube 3 far-end carries out fillet structure 16 and processes, in order to avoid scratching patient.
Specifically, needle tubing 2 diameter can in the range of existing needle tubing, concrete as 17g-22g(g be that unit gauge is write a Chinese character in simplified form, the most together).Needle tubing 2 is positioned at outer tube 3, and it can move freely in outer tube 3.Needle tubing 2 is made up of the needle body section after being positioned at the needle point section of far-end and needle point section, needle point section back segment blasting treatment so that it is can be visible in ultrasonic lower development.The design on needle point section two inclined-plane 14, needle point section plays and thrusts tissue and cut the effect of tissue.Needle tubing 2 near-end is open, and needle tubing 2 near-end is fixing connects needle tubing operation handle 13.The bending in needle tubing 2 Ke Qian Dao Neisuiqian road and bend, and can move forward and backward, its material is rustless steel, Ultimum Ti material.
Specifically, interior core filaments 1 cross section is semicircle, and the far-end of interior core filaments 1 is a round end.Interior core filaments 1 near-end connects interior core filaments joystick 8, and in convenient control, core filaments 1 stretches out needle tubing 2 or exit needle tubing 2.Interior core filaments joystick 8 can use female Luer to design.
Specifically, interior core filaments joystick 8 is connected with interior core filaments 1, and in controlling, core filaments 1 is return at pinpoint inclined plane, stretched out and exit needle tubing 2.Needle tubing operation handle 13 is connected with needle tubing 2, controls pin and narrowing.Outer tube handle 11 is connected with outer tube 3, controls outer tube 3 and penetrates and extract location when clamping road.Spacing collar 6 moves at the scale of scale core bar 5 and fixes, and limits needle tubing operation handle 13 shift position, reaches to control the length that pin stretches out.Regulation handle 4 moves on the scale core bar 5 with scale 12, finely tunes outer tube 3 length.
Embodiment 1
As shown in figures 1 to 6, outer tube 3 is as outer protection pipe, and its length can be processed into different length according to different needs for bronchoscope, digestive endoscope etc., its formed needle tubing 2 and internal instrument thereof in pincers road safety, smooth and easy pass through.Near-end is connected with outer tube handle 11, and outer tube 3 far-end carries out fillet structure 16 and processes, in order to avoid scratching patient.
Within the main body of needle tubing 2 is positioned at outer tube 3 and its diameter is less than the internal diameter of outer tube 3, it can move freely in outer tube 3, uses rustless steel and nickel-titanium alloy material in the present embodiment.Needle tubing 2 overall diameter can be at 17g- In the range of 22g, it is possible to adjusting in the range of other as required, needle point rear end carries out blasting treatment 15, it is simple to ultrasound wave perception reflex.Needle tubing 2 needle point section can pass the far-end of outer tube 3.The needle point of needle distal uses sharp keen needle point section two inclined-plane 14 to design further, and needle body section is connected with needle tubing operation handle 13.
Interior core filaments 1 is through needle tubing 2, and far-end is beyond leaving axial lacuna between needle point 1-2mm, and needle tubing 2.Distal cross section is semicircle, and near-end is connected with interior core filaments joystick 8.Other component string is connected by Handleset by scale core bar 5, and reaches its each function.On scale core bar 5, scale 12 measures numerical value for going out pin, and spacing is 1cm.Outer tube handle 11 is connected with outer tube 3, then is connected with scale core bar 5, reaches fixing outer tube 3.Regulation handle 4, on scale core bar 5, can slide up and down, and bolt 9 is locked, and reaches to regulate outer tube 3 and stretches out the length of Handleset.
On scale core bar 5 slidably, bolt 9 is locked spacing collar 6, reaches to control needle tubing 2 extension elongation.Needle tubing operation handle 13 is connected with needle tubing 2, reaches fixing needle tubing 2.Needle tubing operation handle 13 spins with operation handle 7, and operation handle 7 can slide up and down on scale core bar 5, reaches the control of needle tubing 2 motion, needle tubing operation handle 13 and operate handle 7 and outward winding and can carry out needle tubing 2 and change.Locating part 10 is plug-in connection with operation handle 7, and on locating part, circle end is in operation handle 7, and is provided with in the Z groove that small boss snaps on operation handle 7, and small boss moves and in translot, reaches needle tubing 2 and can not recall completely in outer tube 3 to Z groove.Interior core filaments joystick 8 is connected with interior core filaments 1, reaches fixing interior core filaments 1.
Embodiment 2 :
Lymphoglandulae tracheales biopsy through trachea scope ultrasonic guidance:
(1) specification of puncture needle apparatus is: outer tube 3 effective length is pipe 75 cm, a diameter of 22g of needle tubing 2, the interior a diameter of 0.4mm of core filaments 1.
(2) being distributed collection of illustrative plates according to lymphoglandulae tracheales, after scope is inserted to purpose site of puncture, insert outer tube 3 through pincers road, regulation handle 4 regulates outer tube 3 length so that it is direct view under endoscope is visible, and fixes, and slip spacing collar 6 controls needle tubing 2 extension elongation, and locks.
(3) outwarding winding interior core filaments joystick 8, needle tubing 2 is advanced the purpose degree of depth by depression handle 7.Locating part 10 being pushed into opposite side, core filaments joystick 8 in operation, extracts interior core filaments 1, negtive-pressure implement is connected with needle tubing operation handle 13, and adds negative pressure.Operation operation handle 7, makes needle tubing 2 intert for several times in purpose tissue, is for general 10 times optimal, i.e. completes the tissue samples of large volume.
(4) locating part 10 is resetted, needle tubing 2 is recovered in outer tube 3, and fixing needle tubing 2, then outer tube 3 is extracted from endoscopic forceps channel.
(5) push negtive-pressure implement piston, utilize air to discharge specimen in needle tubing 2;Or inject normal saline with syringe through needle tubing;Or discharge specimen with pushing away interior core filaments 1 to needle tubing 2 far-end.Conventional microscope slide or sample collection bottle make a collection of specimens.
(6) again complete aforesaid operations after resetting and carry out aspiration biopsy cell and tissue specimen.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; the principle that the present invention is simply described described in above-described embodiment and description; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within scope of the claimed invention.Claimed scope is defined by appending claims and equivalent thereof.

Claims (10)

  1. null1. one kind through scope aspiration biopsy apparatus,It is characterized in that: include Handleset、Outer tube、Locating part、Needle tubing and interior core filaments,Described Handleset is by regulating handle、Outer tube handle、Spacing collar、Operation handle、Scale core bar、Needle tubing operation handle and interior core filaments joystick composition,Described regulation handle、Spacing collar and operation handle are all provided with being concatenated into integrative-structure on scale core bar and by scale core bar,Described outer tube handle is located in regulating handle and is connected outer tube,Described outer tube is connected with scale core bar,Described needle tubing operation handle spins with operation handle,Described operation handle plug-in connection finite place piece,Described needle tubing is made up of the needle body section after being positioned at the needle point section of far-end and needle point section,Described needle tubing is positioned at outer tube,Described needle point section passes the far-end of outer tube,Needle body section is fixing connects needle tubing operation handle,Described interior core filaments penetrates in needle tubing,Described interior core filaments far-end exceeds needle tip,Near-end connects interior core filaments joystick.
  2. One the most according to claim 1 is through scope aspiration biopsy apparatus, it is characterised in that: described needle tubing diameter is less than outer tube diameter.
  3. One the most according to claim 1 is through scope aspiration biopsy apparatus, it is characterised in that: described interior core filaments cross section be the far-end of semicircle and interior core filaments be a time round end.
  4. One the most according to claim 1 is through scope aspiration biopsy apparatus, it is characterised in that: described inner core filament length degree is more than needle tubing length and leaves axial lacuna between interior core filaments and needle tubing.
  5. One the most according to claim 1 is through scope aspiration biopsy apparatus, it is characterised in that: described outer tube material is polyether-ether-ketone, and described outer tube corner is fillet structure.
  6. One the most according to claim 1 is through scope aspiration biopsy apparatus, it is characterised in that: described needle point section is that two sharp keen inclined-planes and back segment are through blasting treatment.
  7. One the most according to claim 1 is through scope aspiration biopsy apparatus, it is characterised in that: described needle cannula material is rustless steel, Ultimum Ti material.
  8. One the most according to claim 1 is through scope aspiration biopsy apparatus, it is characterised in that: described interior core filaments joystick uses female Luer design.
  9. One the most according to claim 1 is through scope aspiration biopsy apparatus, it is characterised in that: described regulation handle and spacing collar are all located on scale core bar and are fastened by bolt lock.
  10. One the most according to claim 1 is through scope aspiration biopsy apparatus, it is characterised in that: described scale core bar is provided with scale.
CN201610378737.6A 2016-06-01 2016-06-01 Endoscopic biopsy apparatus Pending CN105943091A (en)

Priority Applications (1)

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CN201610378737.6A CN105943091A (en) 2016-06-01 2016-06-01 Endoscopic biopsy apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610378737.6A CN105943091A (en) 2016-06-01 2016-06-01 Endoscopic biopsy apparatus

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109528236A (en) * 2018-12-31 2019-03-29 深圳北芯生命科技有限公司 The injection device of intravascular ultrasound catheter
CN110575206A (en) * 2019-09-27 2019-12-17 重庆市人民医院 Gastroenterology live body sampling device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87213746U (en) * 1987-09-23 1988-09-28 易少夫 Sleeve medical puncture biopsy needle
JP2002539883A (en) * 1999-03-31 2002-11-26 メディカル エンタープライジーズ リミテッド Apparatus and method for removing biological tissue
CN201029891Y (en) * 2007-03-29 2008-03-05 高志 Intelligent thoracic cavity and abdominal cavity aspiration biopsy instrument
CN102215741A (en) * 2008-11-19 2011-10-12 皇家飞利浦电子股份有限公司 Needle with optical fibers
CN102499720A (en) * 2011-09-26 2012-06-20 耿哲 Novel bone marrow biopsy puncture needle
CN103340657A (en) * 2013-07-25 2013-10-09 中国人民解放军第三军医大学第二附属医院 Bone tissue needle biopsy needle combination
US20150190124A1 (en) * 2005-01-31 2015-07-09 C. R. Bard, Inc. Quick cycle biopsy system
CN105411633A (en) * 2014-09-18 2016-03-23 常州金龙医用塑料器械有限公司 Disposable endoscope biopsy forceps
CN205198041U (en) * 2015-11-26 2016-05-04 龙飞 Through scope puncture sampler

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87213746U (en) * 1987-09-23 1988-09-28 易少夫 Sleeve medical puncture biopsy needle
JP2002539883A (en) * 1999-03-31 2002-11-26 メディカル エンタープライジーズ リミテッド Apparatus and method for removing biological tissue
US20150190124A1 (en) * 2005-01-31 2015-07-09 C. R. Bard, Inc. Quick cycle biopsy system
CN201029891Y (en) * 2007-03-29 2008-03-05 高志 Intelligent thoracic cavity and abdominal cavity aspiration biopsy instrument
CN102215741A (en) * 2008-11-19 2011-10-12 皇家飞利浦电子股份有限公司 Needle with optical fibers
CN102499720A (en) * 2011-09-26 2012-06-20 耿哲 Novel bone marrow biopsy puncture needle
CN103340657A (en) * 2013-07-25 2013-10-09 中国人民解放军第三军医大学第二附属医院 Bone tissue needle biopsy needle combination
CN105411633A (en) * 2014-09-18 2016-03-23 常州金龙医用塑料器械有限公司 Disposable endoscope biopsy forceps
CN205198041U (en) * 2015-11-26 2016-05-04 龙飞 Through scope puncture sampler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109528236A (en) * 2018-12-31 2019-03-29 深圳北芯生命科技有限公司 The injection device of intravascular ultrasound catheter
CN110575206A (en) * 2019-09-27 2019-12-17 重庆市人民医院 Gastroenterology live body sampling device

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Application publication date: 20160921