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CN109045401A - A kind of internal arteriovenous fistula cannula needle - Google Patents

A kind of internal arteriovenous fistula cannula needle Download PDF

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Publication number
CN109045401A
CN109045401A CN201811176284.4A CN201811176284A CN109045401A CN 109045401 A CN109045401 A CN 109045401A CN 201811176284 A CN201811176284 A CN 201811176284A CN 109045401 A CN109045401 A CN 109045401A
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CN
China
Prior art keywords
needle
puncture
puncture needle
indwelling
connector
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
CN201811176284.4A
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Chinese (zh)
Inventor
蔡惠兰
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SUZHOU KOWLOON HOSPITAL CO Ltd
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SUZHOU KOWLOON HOSPITAL CO Ltd
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Priority to CN201811176284.4A priority Critical patent/CN109045401A/en
Publication of CN109045401A publication Critical patent/CN109045401A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • A61M2005/1587—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body suitable for being connected to an infusion line after insertion into a patient

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

A kind of internal arteriovenous fistula cannula needle, it is characterized by comprising puncture needle components (1) and indwelling needle assembly (2), puncture needle component (1) includes puncture needle fixing seat (14), it is fixed on the puncture needle (8) of puncture needle fixing seat (14) proximal end and is punctured the perforative anti-stab seat pipe (13) of needle (8), puncture needle (8) proximal end is equipped with puncture needle needle point (3), the proximal end of anti-stab seat pipe (13) is equipped with master jaw (21), sliding groove (26) are equipped between anti-stab seat pipe (13) and master jaw (21), magnetic metal sliding block (11) are equipped in sliding groove (26).The present invention can reduce puncture time, mitigate the puncture pain of hemodialysis patients.Internal arteriovenous fistula blood vessel is protected, internal arteriovenous fistula complication is reduced.It solves the problems, such as that difficult internal fistula punctures, improves puncture success rate.Patient is comfortable in dialysis, improves nurse job efficiency, effectively prevent needle pricks, is convenient for safe disposal.

Description

A kind of internal arteriovenous fistula cannula needle
Technical field
The present invention relates to a kind of internal arteriovenous fistula cannula needles.
Background technique
Clinically in puncture of internal arteriovenous fistula method, buttonhole method is one of common method in current clinic.It uses list One inserting needle channel can be improved puncture success rate and mitigate patient pain and anxiety, reduces puncture of internal arteriovenous fistula complication Occur, increases aesthetics at patient's internal fistula.But initial stage formation hypodermic tunnel is more demanding: (1) need to strictly abide by when sharp pin puncture Follow " five is same " principle, i.e. point of puncture, puncture angle, paracentesis depth, patient's internal arteriovenous fistula side arm placement position is identical, and by Same position nurse punctures.(2) it when puncturing every time, is required to remove the scab on point of puncture, in case puncture needle deviates original Point of puncture or scab enter blood vessel and infect.(3) lower 1/3 internal arteriovenous fistula blood on the outside of radius should be avoided when site of puncture selects Pipe, so as not to because when the blood vessel that the position is easily slided leads to pull out needle hemostasis by compression formed subcutaneous hematoma (4) need to use tunnel nail or Titanium guide pin implanted device assists tunnel to be formed by 6-12 puncture.
Shortcoming: clinically because tunnel nail or titanium guide pin implanted device use cost are high, being difficult really to carry out and implement, It assists forming tunnel and perform practically no function using tunnel nail or titanium guide pin implanted device.Puncturing nursing staff will fix relatively, cause Department arranges an order according to class and grade difficulty.Even same people punctures, it is difficult to ensure that same puncture angle, paracentesis depth.Tunnel forms smoothness and owes It lacks, difficulty can be brought to postorder puncture, increase fistula-induced complication.
Tunnel nail or titanium guide pin implanted device are needed to place, be taken out, and increase infection probability.External usually used tunnel Tunnel nail is put by nail after puncturing every time, is waited second of puncture again to follow closely tunnel and is taken out, if things go on like this forms tunnel, but tunnel Railway spike price is more expensive, never promotes come at home, using the method for indwelling, not only eliminates repeatedly plug tunnel nail band The infection hidden danger come, and largely reduce the workload of nursing staff.
Summary of the invention
The purpose of the present invention is to provide a kind of internal arteriovenous fistula cannula needles, to solve lacking in above-mentioned background technique It falls into.
To achieve the above object, the invention provides the following technical scheme:
A kind of internal arteriovenous fistula cannula needle, it is characterised in that: including puncture needle component (1) and indwelling needle assembly (2), Puncture needle component (1) include puncture needle fixing seat (14), the puncture needle (8) for being fixed on puncture needle fixing seat (14) proximal end and by The perforative anti-stab seat pipe (13) of puncture needle (8), puncture needle (8) proximal end are equipped with puncture needle needle point (3), the proximal end of anti-stab seat pipe (13) Equipped with master jaw (21), sliding groove (26) are equipped between anti-stab seat pipe (13) and master jaw (21), magnetic is equipped in sliding groove (26) Property metal block (11), the side of sliding groove (26) is embedded with magnet (12), and sliding groove (26) center is equipped with wears for puncture needle (8) Through-hole (27) out, when so that puncture needle (8) being not passed through through-hole (27), magnetic metal sliding block (11) place in sliding groove (26) In the position for being attracted and being contacted with magnet (12) by magnet (12), puncture needle (8) outer wall is equipped with limit convex body (18), for preventing The puncture needle needle point (3) of puncture needle (8) is pulled out from the distal end of anti-stab seat pipe (13) and is separated；
The remaining needle that indwelling needle assembly (2) includes remaining needle connector (5), is fixedly connected with remaining needle connector (5) (4), connector (6) and silicone tube (7), remaining needle connector (5) is connect by silicone tube (7) with connector (6) and internal phase Intercommunicated, the distal end of connector (6) is medical standard luer fittings (17), and medical standard luer fittings (17) pass through external screw thread (20) end cap (9) are connected, the distal end of end cap (9) is equipped with seal rubber plug (10), and end cap (9) outer wall is equipped with card tooth (22), card tooth It (22) is annular projection, card tooth (22) is removably connected together with master jaw (21), and remaining needle connector (5) two sides are set respectively There is a butterfly flank (24), butterfly flank (24) is laminated structure, is connected as one with remaining needle connector (5), silica gel It manages (7) and is equipped with closure folder (25).
The puncture needle (8) is hollow tubulose, by stainless steel, aluminum metal, aluminium alloy, titanium or titanium alloy material system It makes, is connected to inside distal end and puncture needle fixing seat (14), puncture needle needle point (3) is the sharp shape with geometry section.
The puncture needle fixing seat (14) is made of transparent material plastics, generally tubulose, proximal end and puncture needle (8) Sealing injection molding is connected as one, and puncture needle fixing seat (14) distal end is removably sealedly connected with cock cap (15), cock cap It (15) is hollow structure, proximal end is equipped with waterproof ventilated membrane (23), which closes the proximal end of cock cap (15).
The magnetic metal sliding block (11) be coin shapes, material be stainless steel, 0.5-1.5 millimeters of thickness.
It is the indwelling lumen road (16) of front and back perforation inside the remaining needle (4), and the proximal, side wall of remaining needle (4) opens up There is the side opening (19) being connected to indwelling lumen road (16).
The material of the remaining needle (4) is ethylene-tetrafluoroethylene copolymer (ETFE), polyurethane, nylon tree Rouge or polypropylene, and be transparent or semitransparent shape.
The polytetrafluoroethylene (PTFE) (EPTFE).
Compared with prior art, the beneficial effects of the present invention are:
A kind of the advantages of internal arteriovenous fistula cannula needle of the invention:
1, puncture time is reduced, the puncture pain of hemodialysis patients is mitigated.
2, internal arteriovenous fistula blood vessel is protected, internal arteriovenous fistula complication is reduced.
3, it solves the problems, such as that difficult internal fistula punctures, improves puncture success rate.
4, patient is comfortable in dialysis.
5, nurse job efficiency is improved.
6, needle pricks are effectively prevent, safe disposal is convenient for.
Detailed description of the invention
Fig. 1 is overall structure schematic cross-sectional view of the invention；
Fig. 2 is the schematic cross-sectional view of indwelling needle assembly of the invention；
Fig. 3 is the structural schematic diagram of puncture needle component of the invention.
Fig. 4 is one of the end structure illustration of anti-stab seat pipe of the invention.
Fig. 5 is the two of the end structure illustration of anti-stab seat pipe of the invention.
Fig. 6 is the schematic diagram of the section structure of anti-stab seat pipe of the invention.
In figure: 1, puncture needle component；2, indwelling needle assembly；3, puncture needle needle point；4, remaining needle；5, remaining needle connector； 6, connector；7, silicone tube；8, puncture needle；9, end cap；10, seal rubber plug；11, magnetic metal sliding block；12, magnet；13, anti-stab Seat pipe；14, puncture needle fixing seat；15, cock cap；16, indwelling lumen road；17, medical standard luer fittings；18, convex body is limited； 19, side opening；20, external screw thread；21, master jaw；22, card tooth；23, waterproof ventilated membrane；24, butterfly flank；25, closure folder；26, sliding Dynamic slot；27, through-hole.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Fig. 1-6 is please referred to, the present invention provides a kind of technical solution:
In description of the invention, the position close to 3 one end of needle point is referred to as proximal end, and the position far from 3 one end of needle point is referred to as For distal end.
A kind of internal arteriovenous fistula cannula needle, it is characterised in that: including puncture needle component (1) and indwelling needle assembly (2), Puncture needle component (1) include puncture needle fixing seat (14), the puncture needle (8) for being fixed on puncture needle fixing seat (14) proximal end and by The perforative anti-stab seat pipe (13) of puncture needle (8), puncture needle (8) proximal end are equipped with puncture needle needle point (3), the proximal end of anti-stab seat pipe (13) Equipped with master jaw (21), sliding groove (26) are equipped between anti-stab seat pipe (13) and master jaw (21), magnetic is equipped in sliding groove (26) Property metal block (11), the side of sliding groove (26) is embedded with magnet (12), and sliding groove (26) center is equipped with wears for puncture needle (8) Through-hole (27) out, when so that puncture needle (8) being not passed through through-hole (27), magnetic metal sliding block (11) place in sliding groove (26) In the position for being attracted and being contacted with magnet (12) by magnet (12), puncture needle (8) outer wall is equipped with limit convex body (18), for preventing The puncture needle needle point (3) of puncture needle (8) is pulled out from the distal end of anti-stab seat pipe (13) and is separated；
The remaining needle that indwelling needle assembly (2) includes remaining needle connector (5), is fixedly connected with remaining needle connector (5) (4), connector (6) and silicone tube (7), remaining needle connector (5) is connect by silicone tube (7) with connector (6) and internal phase Intercommunicated, the distal end of connector (6) is medical standard luer fittings (17), and medical standard luer fittings (17) pass through external screw thread (20) end cap (9) are connected, the distal end of end cap (9) is equipped with seal rubber plug (10), and end cap (9) outer wall is equipped with card tooth (22), card tooth It (22) is annular projection, card tooth (22) is removably connected together with master jaw (21), and remaining needle connector (5) two sides are set respectively There is a butterfly flank (24), butterfly flank (24) is laminated structure, is connected as one with remaining needle connector (5), silica gel It manages (7) and is equipped with closure folder (25).
Butterfly flank 24 increases the contact area with skin, its needle is attached on human skin, can effectively consolidate by cooperation adhesive plaster Determine indwelling needle assembly, anti-indwelling needle assembly displacement and slippage.Increase needle body contact area when puncture procedure, convenient for puncturing.
Seal rubber plug 10 can be punctured the puncture of needle 8, and after puncture needle is extracted, seal rubber plug 10 can using the elasticity of itself rubber It restores, and then puncturing hole is closed and realizes sealing, it will not leak fluid.
The puncture needle (8) is hollow tubulose, by stainless steel, aluminum metal, aluminium alloy, titanium or titanium alloy material system It makes, is connected to inside distal end and puncture needle fixing seat (14), puncture needle needle point (3) is the sharp shape with geometry section.
The puncture needle fixing seat (14) is made of transparent material plastics, generally tubulose, proximal end and puncture needle (8) Sealing injection molding is connected as one, and puncture needle fixing seat (14) distal end is removably sealedly connected with cock cap (15), cock cap It (15) is hollow structure, proximal end is equipped with waterproof ventilated membrane (23), which closes the proximal end of cock cap (15).
The magnetic metal sliding block (11) be coin shapes, material be stainless steel, 0.5-1.5 millimeters of thickness.
It is the indwelling lumen road (16) of front and back perforation inside the remaining needle (4), and the proximal, side wall of remaining needle (4) opens up There is the side opening (19) being connected to indwelling lumen road (16).
The material of the remaining needle (4) is ethylene-tetrafluoroethylene copolymer (ETFE), polyurethane, nylon tree Rouge or polypropylene, and be transparent or semitransparent shape.
Fig. 1 is puncture state, and indwelling needle assembly 2 is combined into one with puncture needle component 1 at this time, and puncture needle is from remaining needle 4 It is inside pierced by, is at this time puncture state.
Fig. 2 is the state that remaining needle is retained in human body, and Fig. 3 is after pulling back puncture needle, to take advantage of a situation master jaw 21 It is separated with card tooth 22, then realizes the separation of indwelling needle assembly 2 and puncture needle component 1.
When Fig. 4 is that puncture needle 8 runs through through-hole 27, magnetic metal sliding block 11 is punctured the resistance of needle 8 barrier in the opposite side of magnet, figure 5 be puncture needle 8 after detaching in through-hole 27, and magnetic metal sliding block 11 is attracted by magnet 12, slides into 27 position of through-hole, thus real Now through-hole 27 is closed, prevents puncture needle 8 from being pierced by from through-hole 27, puncture needle needle point 3 is isolated in inside anti-stab seat pipe 13, it is real Existing physical isolation, prevents from stabbing.
Fig. 6 is structural schematic diagram of the puncture needle needle point 3 inside anti-stab seat pipe 13, prevents puncture needle by limiting convex body 18 Needle point 3 is extracted out inside anti-stab seat pipe 13.Limit convex body 18 can be used the method for punching press directly in the outer wall production of puncture needle 8 and At the extruding metal of 8 tube wall of puncture needle is gone out an outside protrusion deformation by stamping die；Or in puncture needle 8 Outer wall welding metal protrusion.
Plastic injection or molded can be used in the material of unmentioned component in embodiment.Connection between component is closed System, which is made into according to the function of component with demand, to be detachably connected or waterproof sealing connects.
By puncture of internal arteriovenous fistula needle be designed to can indwelling tunnel guide, be placed in after puncturing for the first time in the method for remaining needle, to For a period of time, it after hypodermic tunnel to be formed, pulls out remaining needle and uses blunt needle puncture instead.Remaining needle caliber 17G, material can use band heparin Coating.
Piercing method:
Skin at routine disinfection puncture takes out remaining needle outer tube, gently rotates needle core, (to send pipe and to extract needle core Shi Shunli) taught skin thrusts straightly blood vessel, slow inserting needle with 25-40 degree above vascular puncture point, and observation reduces after seeing blood back Angle continues inserting needle 0.2CM, is laid flat trochar, and left hand is fixed at wing, and the right hand retreats needle core 0.5-1.0CM, send pipe, removes needle Core, 25 folder of closure folder closes at silicone tube 7, the medical connection of standard luer fittings 17 dialysis pipeline or calparine cap.Closure presss from both sides 25 The medical closure folder of standard, belongs to the prior art, should be closed occasion in pipelines such as infusion apparatus, remaining needles extensively at present.
It can also be as needed in suitable 0.5 centimetre of position subscript high scale and 1.0 centimeter scale lines, just on puncture needle In the displacement that observation is pushed pin.
Integral outer of the present invention can also add transparent fixed cylinder box, as outer packing.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention Preference, be not intended to limit the invention, without departing from the spirit and scope of the present invention, the present invention also has various Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute Attached claims and its equivalent thereof.

Claims (7)

1.一种动静脉内瘘套管留置针，其特征在于：包括穿刺针组件(1)和留置针组件(2)，1. An arteriovenous fistula cannula indwelling needle, characterized in that: comprising a puncture needle assembly (1) and an indwelling needle assembly (2), 穿刺针组件(1)包括穿刺针固定座(14)、固定在穿刺针固定座(14)近端的穿刺针(8)以及被穿刺针(8)贯穿的防刺座管(13)，穿刺针(8)近端设有穿刺针针尖(3)，防刺座管(13)的近端设有卡爪座(21)，防刺座管(13)与卡爪座(21)之间设有滑动槽(26)，滑动槽(26)内设有磁性金属滑块(11)，滑动槽(26)的一侧嵌入有磁铁(12)，滑动槽(26)中央设有供穿刺针(8)穿出的通孔(27)，使得穿刺针(8)不穿过该通孔(27)时，磁性金属滑块(11)在滑动槽(26)内处于被磁铁(12)吸引且与磁铁(12)接触的位置，穿刺针(8)外壁设有限位凸体(18)，用于阻止穿刺针(8)的穿刺针针尖(3)从防刺座管(13)的远端拉出分离；The puncture needle assembly (1) comprises a puncture needle holder (14), a puncture needle (8) fixed at the proximal end of the puncture needle holder (14) and a puncture-proof seat tube (13) penetrated by the puncture needle (8), the puncture The proximal end of the needle (8) is provided with a puncture needle tip (3), and the proximal end of the anti-stab seat tube (13) is provided with a claw seat (21), between the stab-proof seat tube (13) and the claw seat (21) A sliding groove (26) is provided, and a magnetic metal slider (11) is arranged in the sliding groove (26), and a magnet (12) is embedded in one side of the sliding groove (26), and a puncture needle is provided in the center of the sliding groove (26). (8) the through hole (27) that passes through, so that when the puncture needle (8) does not pass through the through hole (27), the magnetic metal slider (11) is attracted by the magnet (12) in the sliding groove (26) And at the position in contact with the magnet (12), the outer wall of the puncture needle (8) is provided with a limiting protrusion (18), which is used to prevent the puncture needle tip (3) of the puncture needle (8) from moving away from the anti-stab seat tube (13). Pull out the end to separate; 留置针组件(2)包括留置针连接头(5)、与留置针连接头(5)固定连接的留置针(4)、连接器(6)和硅胶管(7)，留置针连接头(5)通过硅胶管(7)与连接器(6)连接且内部相互连通，连接器(6)的远端为医用标准鲁尔接头(17)，医用标准鲁尔接头(17)通过外螺纹(20)连接端帽(9)，端帽(9)的远端设有密封胶塞(10)，端帽(9)外壁设有卡牙(22)，卡牙(22)为环状凸起，卡牙(22)与卡爪座(21)可拆卸的卡合连接，留置针连接头(5)两侧分别设有一个蝶形侧翼(24)，蝶形侧翼(24)为片状结构，其与留置针连接头(5)连接为一体，硅胶管(7)上设有闭合夹(25)。The indwelling needle assembly (2) includes the indwelling needle connector (5), the indwelling needle (4) fixedly connected with the indwelling needle connector (5), the connector (6) and the silicone tube (7), the indwelling needle connector (5 ) is connected to the connector (6) through a silicone tube (7) and communicates with each other internally, the far end of the connector (6) is a medical standard Luer connector (17), and the medical standard Luer connector (17) is passed through an external thread (20 ) is connected to the end cap (9), the far end of the end cap (9) is provided with a sealing rubber plug (10), the outer wall of the end cap (9) is provided with locking teeth (22), and the locking teeth (22) are annular protrusions, The clamp teeth (22) are detachably engaged with the claw base (21), and the two sides of the indwelling needle connector (5) are respectively provided with a butterfly wing (24). The butterfly wing (24) is a sheet structure, It is integrated with the indwelling needle connector (5), and the silicone tube (7) is provided with a closing clip (25). 2.根据权利要求1所述的动静脉内瘘套管留置针，其特征在于：所述穿刺针(8)为中空的管状，由不锈钢、铝金属、铝合金、钛金属或钛合金材质制造，其远端与穿刺针固定座(14)内部连通，穿刺针针尖(3)为具有几何切面的尖锐形状。2. The indwelling needle for arteriovenous fistula according to claim 1, characterized in that: the puncture needle (8) is hollow tubular and made of stainless steel, aluminum metal, aluminum alloy, titanium metal or titanium alloy , the distal end of which communicates with the inside of the puncture needle holder (14), and the puncture needle tip (3) is a sharp shape with a geometric section. 3.根据权利要求1所述的动静脉内瘘套管留置针，其特征在于：所述穿刺针固定座(14)为透明材质塑料制成，其整体为管状，其近端与穿刺针(8)密封注塑连接为一体结构，穿刺针固定座(14)远端可拆卸的密封连接有塞帽(15)，塞帽(15)为中空结构，其近端设有防水透气膜(23)，该防水透气膜(23)将塞帽(15)的近端封闭。3. The indwelling needle for arteriovenous fistula according to claim 1, characterized in that: the puncture needle holder (14) is made of transparent material plastic, and its whole is tubular, and its proximal end is connected to the puncture needle ( 8) Sealed injection molded connection integrated structure, the detachable sealing connection of the distal end of the puncture needle holder (14) has a plug cap (15), the plug cap (15) is a hollow structure, and its proximal end is provided with a waterproof and breathable membrane (23) , the near end of the plug cap (15) is closed by the waterproof gas-permeable membrane (23). 4.根据权利要求1所述的动静脉内瘘套管留置针，其特征在于：所述磁性金属滑块(11)为硬币形状，其材质为不锈钢，厚度0.5-1.5毫米。4. The arteriovenous fistula cannula indwelling needle according to claim 1, characterized in that: the magnetic metal slider (11) is in the shape of a coin, made of stainless steel, and has a thickness of 0.5-1.5 mm. 5.根据权利要求1所述的动静脉内瘘套管留置针，其特征在于：所述留置针(4)内部为前后贯通的留置腔管道(16)，且留置针(4)的近端侧壁开设有与留置腔管道(16)连通的侧孔(19)。5. The arteriovenous fistula cannula indwelling needle according to claim 1, characterized in that: the inside of the indwelling needle (4) is an indwelling lumen pipeline (16) that runs through front and back, and the proximal end of the indwelling needle (4) A side hole (19) communicating with the indwelling cavity pipeline (16) is opened on the side wall. 6.根据权利要求1所述的动静脉内瘘套管留置针，其特征在于：所述留置针(4)的材质为乙烯-四氟乙烯共聚物(ETFE)、聚氨基甲酸乙酯、尼龙树脂或聚丙烯，且为透明或半透明状。6. The arteriovenous fistula cannula indwelling needle according to claim 1, characterized in that: the indwelling needle (4) is made of ethylene-tetrafluoroethylene copolymer (ETFE), polyurethane, nylon Resin or polypropylene, and transparent or translucent. 7.根据权利要求1所述的动静脉内瘘套管留置针，其特征在于：所述聚四氟乙烯(EPTFE)。7. The arteriovenous fistula cannula indwelling needle according to claim 1, characterized in that: said polytetrafluoroethylene (EPTFE).
CN201811176284.4A 2018-10-10 2018-10-10 A kind of internal arteriovenous fistula cannula needle Pending CN109045401A (en)

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CN201811176284.4A CN109045401A (en) 2018-10-10 2018-10-10 A kind of internal arteriovenous fistula cannula needle

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN110051898A (en) * 2019-06-10 2019-07-26 端源医疗科技无锡有限公司 Trochar is used in disposable dialysis
CN110680973A (en) * 2019-10-25 2020-01-14 毛坤剑 Arteriovenous internal fistula puncture needle for blood purification
CN110840529A (en) * 2019-10-30 2020-02-28 王庆松 An accurate positioning lumbar puncture structure
CN116458973A (en) * 2023-04-10 2023-07-21 刘旭东 Deep venipuncture device and method for blind puncture venous indwelling needle

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CN209596322U (en) * 2018-10-10 2019-11-08 苏州九龙医院有限公司 A kind of internal arteriovenous fistula cannula needle

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CN1660453A (en) * 2004-02-26 2005-08-31 尼普洛株式会社 safety needle
JP2005270638A (en) * 2004-02-26 2005-10-06 Nipro Corp Safety indwelling needle
CN201643185U (en) * 2010-01-25 2010-11-24 柯齐斌 Safety valve artery and vein remaining needle
CN104800924A (en) * 2014-01-24 2015-07-29 泰尔茂医疗产品(杭州)有限公司 Catheter assembly
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CN209596322U (en) * 2018-10-10 2019-11-08 苏州九龙医院有限公司 A kind of internal arteriovenous fistula cannula needle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110051898A (en) * 2019-06-10 2019-07-26 端源医疗科技无锡有限公司 Trochar is used in disposable dialysis
CN110051898B (en) * 2019-06-10 2024-01-26 端源医疗科技无锡有限公司 Disposable trocar for dialysis
CN110680973A (en) * 2019-10-25 2020-01-14 毛坤剑 Arteriovenous internal fistula puncture needle for blood purification
CN110840529A (en) * 2019-10-30 2020-02-28 王庆松 An accurate positioning lumbar puncture structure
CN116458973A (en) * 2023-04-10 2023-07-21 刘旭东 Deep venipuncture device and method for blind puncture venous indwelling needle

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