CN106691548A - Magnetic resonance compatibility puncture needle - Google Patents
Magnetic resonance compatibility puncture needle Download PDFInfo
- Publication number
- CN106691548A CN106691548A CN201510425890.5A CN201510425890A CN106691548A CN 106691548 A CN106691548 A CN 106691548A CN 201510425890 A CN201510425890 A CN 201510425890A CN 106691548 A CN106691548 A CN 106691548A
- Authority
- CN
- China
- Prior art keywords
- magnetic resonance
- handle
- interior pin
- puncture needle
- inner needle
- 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
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 37
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 10
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 10
- 229910052715 tantalum Inorganic materials 0.000 claims description 7
- 239000007937 lozenge Substances 0.000 claims 1
- 210000004072 lung Anatomy 0.000 abstract description 5
- 210000005013 brain tissue Anatomy 0.000 abstract description 4
- 230000001575 pathological effect Effects 0.000 abstract 2
- 239000000243 solution Substances 0.000 description 19
- 239000000463 material Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 229910001362 Ta alloys Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 3
- 210000004556 brain Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 206010008111 Cerebral haemorrhage Diseases 0.000 description 1
- 206010011732 Cyst Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 210000000013 bile duct Anatomy 0.000 description 1
- 238000001574 biopsy Methods 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 208000031513 cyst Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000001635 urinary tract Anatomy 0.000 description 1
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
- Surgical Instruments (AREA)
Abstract
Description
技术领域 technical field
本发明涉及医疗器械的技术领域，具体的是一种磁共振兼容性穿刺针。 The invention relates to the technical field of medical devices, in particular to a magnetic resonance compatible puncture needle.
背景技术 Background technique
穿刺针是最基本的介入器械，可用于直接穿入肿瘤或囊腔内做抽吸、冲洗、引流、活检或消融等诊断与治疗；也可用于打开皮肤与血管的通道或颅脑、胆管、泌尿道、胃、浓腔与囊腔等组织，然后引入导丝、导管、引流管等进行治疗。传统穿刺针广泛应用于医学领域，但在磁共振导引介入中应用有限。磁共振导引介入是指以影像诊断学为基础，在磁共振设备的导引下，利用经皮穿刺技术和导管技术等，对一些疾病进行治疗或用以取得组织学、细菌学、生理和生化材料，以明确病变性质。该技术具有无电离辐射、微创、治疗精准等特点，是临床医学的最新发展之一。常规的穿刺针多由铁磁物质组成，会飞向磁场中心或产生转动，影响手术操作，甚至危及患者生命。当磁共振兼容性穿刺针用于脑部组织时，因为脑部组织不同于其它身体部位，其供血特别丰富，脑表面分布有大量的血管，穿刺针过于锋利很容易刺破脑内血管结构，引发脑出血等并发症；当穿刺针用于肺部等组织穿刺时，肺部组织非常柔软，但肺部的病变组织一般比较坚韧，普通的穿刺针不容易进入病变组织内。这是现有技术的不同之处。 The puncture needle is the most basic interventional device, which can be used to directly penetrate into the tumor or cyst cavity for diagnosis and treatment such as suction, flushing, drainage, biopsy or ablation; it can also be used to open the channel of the skin and blood vessels or the brain, bile duct, Urinary tract, stomach, cavities and cystic cavities and other tissues, and then guide wires, catheters, drainage tubes, etc. are introduced for treatment. Traditional puncture needles are widely used in the medical field, but their application in MRI-guided intervention is limited. Magnetic resonance guided intervention refers to the use of percutaneous puncture technology and catheter technology to treat some diseases or obtain histology, bacteriology, physiology and Biochemical materials to clarify the nature of the lesion. This technology has the characteristics of no ionizing radiation, minimally invasive, precise treatment, etc. It is one of the latest developments in clinical medicine. Conventional puncture needles are mostly composed of ferromagnetic materials, which will fly to the center of the magnetic field or rotate, affecting surgical operations and even endangering the lives of patients. When the magnetic resonance compatible puncture needle is used for brain tissue, because the brain tissue is different from other body parts, its blood supply is particularly rich, and there are a large number of blood vessels distributed on the surface of the brain. If the puncture needle is too sharp, it will easily puncture the blood vessel structure in the brain. Cause complications such as cerebral hemorrhage; when the puncture needle is used to puncture tissues such as the lungs, the lung tissue is very soft, but the diseased tissue of the lung is generally tough, and ordinary puncture needles are not easy to enter the diseased tissue. This is where the existing technology differs.
发明内容 Contents of the invention
本发明所要解决的技术问题，就是针对现有技术所存在的不足，而提供一种使用方便安全的磁共振兼容性穿刺针。 The technical problem to be solved by the present invention is to provide a magnetic resonance compatible puncture needle that is convenient and safe to use in view of the deficiencies in the prior art.
本方案是通过如下技术措施来实现的：一种磁共振兼容性穿刺针，包括手柄、内针和外套管，所述内针嵌入外套管，并且内针的尾部穿出外套管的尾部，所述内针的尾部为球形结构或尖头结构。 This solution is achieved through the following technical measures: a magnetic resonance compatible puncture needle, including a handle, an inner needle and an outer cannula, the inner needle is embedded in the outer cannula, and the tail of the inner needle passes through the tail of the outer cannula, so The tail of the inner needle is a spherical structure or a pointed structure.
本方案的技术特征还包括：上述外套管为纯钽，所述内针为钛合金。采用本技术方案，外套管为纯钽，它的纯度高，而且铁的含量也很低，内针为钛合金，纯钽和钛合金材料在磁共振环境内，受力、发热、伪影程度都很小，有利于判断磁共振穿刺针针尖位置，增加介入手术的成功概率。 The technical features of this solution also include: the above-mentioned outer casing is made of pure tantalum, and the said inner needle is made of titanium alloy. With this technical solution, the outer casing is made of pure tantalum, which has high purity and low iron content, and the inner needle is made of titanium alloy. Pure tantalum and titanium alloy materials are in the magnetic resonance environment, and the degree of force, heat, and artifacts They are all small, which is beneficial to judge the position of the needle tip of the magnetic resonance puncture needle and increase the success probability of the interventional operation.
本方案的技术特征还包括：上述外套管的尾部为平头结构。也就是说，外套管的尾部设置有平齐的端面，采用本技术方案，能够增加穿刺通道的宽度。 The technical features of this solution also include: the tail of the outer sleeve is a flat head structure. That is to say, the tail of the outer sleeve is provided with a flush end surface, and the technical solution can increase the width of the puncture channel.
优选的，当上述内针的尾部为球形结构时，所述内针的尾部为半圆球结构，所述内针的尾部半圆球的直径与内针的中部的直径相等。 Preferably, when the tail of the inner needle is in a spherical structure, the tail of the inner needle is in a hemispherical structure, and the diameter of the hemisphere at the tail of the inner needle is equal to the diameter of the middle part of the inner needle.
本方案的技术特征还包括：当上述内针的尾部为尖头结构时，所述内针的尾部为一组菱形面环绕形成的尖头结构；或者所述内针的尾部为多棱锥形的尖头结构。采用本技术方案，所述内针的尾部非常锋利，方便进入比较坚韧的病变组织。 The technical features of this solution also include: when the tail of the inner needle is a pointed structure, the tail of the inner needle is a pointed structure formed around a group of rhombic surfaces; or the tail of the inner needle is a polygonal pyramid Pointed structure. By adopting the technical scheme, the tail of the inner needle is very sharp, which is convenient for entering relatively tough diseased tissues.
本方案的技术特征还包括：上述内针的尾部穿出外套管的尾部的长度为a，所述a≥3mm。采用本技术方案，所述内针的尾部穿出外套管的尾部至少3mm，以保证顺利进针。 The technical feature of this solution also includes: the length of the tail of the inner needle passing through the tail of the outer sleeve is a, and the a is greater than or equal to 3mm. With this technical solution, the tail of the inner needle passes through the tail of the outer sleeve by at least 3 mm to ensure smooth insertion of the needle.
对a长度的进一步限定，优选的，所述a为3mm～7mm。 For further limitation on the length of a, preferably, said a is 3 mm to 7 mm.
本方案的技术特征还包括：上述手柄包括与内针固定连接的内针手柄，以及与外套管固定连接的外套管手柄，所述内针手柄与外套管手柄为可拆卸的固定连接。 The technical feature of this solution also includes: the above-mentioned handle includes an inner needle handle fixedly connected with the inner needle, and an outer cannula handle fixedly connected with the outer cannula, the inner needle handle and the outer cannula handle are detachably fixedly connected.
对内针手柄与外套管手柄的进一步限定，上述内针手柄设置有连接孔，所述连接孔的内壁上设置有连接螺纹，所述外套管手柄一端的外壁上设置有连接螺纹。 For further definition of the inner needle handle and the outer cannula handle, the inner needle handle is provided with a connecting hole, the inner wall of the connecting hole is provided with a connecting thread, and the outer wall of one end of the outer cannula handle is provided with a connecting thread.
本方案的技术特征还包括：上述内针手柄和外套管手柄形成一个容腔。采用本技术方案，所述内针手柄与外套管手柄形成一个容腔，便于在治疗过程中引流或注射药物用。 The technical feature of this solution also includes: the inner needle handle and the outer tube handle form a cavity. With this technical solution, the inner needle handle and the outer cannula handle form a cavity, which is convenient for drainage or drug injection during treatment.
本方案的技术特征还包括：上述内针手柄设置有连接孔，所述连接孔的内壁上设置有连接螺纹，所述外套管手柄一端的外壁上设置有连接螺纹。 The technical features of this solution also include: the above-mentioned inner needle handle is provided with a connection hole, the inner wall of the connection hole is provided with a connection thread, and the outer wall of one end of the outer sleeve handle is provided with a connection thread.
本方案的技术特征还包括：上述外套管的长度为10cm或15cm或18cm或20cm。 The technical feature of this solution also includes: the length of the above-mentioned outer sleeve is 10cm or 15cm or 18cm or 20cm.
本方案的技术特征还包括：上述手柄为塑料材质的手柄。采用本技术方案，所述手柄采用塑料材质，一方面塑料材质无磁，另一方面，轻便，方便进针。 The technical feature of this solution also includes: the above-mentioned handle is a handle made of plastic material. With this technical solution, the handle is made of plastic material, which is non-magnetic on the one hand, and light and convenient for needle insertion on the other hand.
本方案的技术特征还包括：上述外套管上设置有刻度环，所述刻度环包括单刻度环和双刻度环。以外套管的尾部为基准，每隔 10mm 打单刻度环，每隔50mm 打双刻度环，单刻度环宽度为0.5mm，双刻度环由相距0.5mm 的两个单刻度环组成；设置刻度环能够在任何角度都可以看到进针情况，且更加精确的判断磁共振穿刺针的深度以及穿刺针的针尖位置，方便计算进针深度。 The technical features of this solution also include: a scale ring is provided on the outer sleeve, and the scale ring includes a single scale ring and a double scale ring. Take the tail of the outer casing as the reference, print a single scale ring every 10mm, and double scale rings every 50mm, the width of the single scale ring is 0.5mm, and the double scale ring is composed of two single scale rings with a distance of 0.5mm; set the scale ring The needle insertion situation can be seen at any angle, and the depth of the magnetic resonance puncture needle and the position of the needle tip of the puncture needle can be judged more accurately, which is convenient for calculating the needle insertion depth.
本发明的有益效果从上述的技术方案可以得知：一种磁共振兼容性穿刺针，包括手柄、内针和外套管，所述内针嵌入外套管，并且内针的尾部穿出外套管的尾部，所述内针的尾部为球形结构或尖头结构。在本发明中，当所述内针的尾部为球形结构时，光滑、阻力小，不会刺伤脑组织；当所述内针的尾部为尖头结构时，方便进入坚韧的病变组织（如肺部的病变组织）。 The beneficial effects of the present invention can be known from the above technical solution: a magnetic resonance compatible puncture needle, including a handle, an inner needle and an outer sleeve, the inner needle is embedded in the outer sleeve, and the tail of the inner needle passes through the outer sleeve Tail, the tail of the inner needle is a spherical structure or a pointed structure. In the present invention, when the tail of the inner needle is a spherical structure, it is smooth and has low resistance, and will not stab brain tissue; when the tail of the inner needle is a pointed structure, it is convenient to enter tough diseased tissues (such as diseased tissue in the lungs).
由此可见，本发明与现有技术相比，具有突出的实质性特点和显著的进步，其实施的有益效果也是显而易见的。 It can be seen that, compared with the prior art, the present invention has outstanding substantive features and remarkable progress, and the beneficial effects of its implementation are also obvious.
附图说明 Description of drawings
图1 为内针的尾部为球形结构的穿刺针示意图； Fig. 1 is a schematic diagram of a puncture needle in which the tail of the inner needle is a spherical structure;
图2为内针的尾部为尖头结构的穿刺针示意图； Fig. 2 is a schematic diagram of a puncture needle in which the tail of the inner needle is a pointed structure;
图3为外套管的局部示意图。 Fig. 3 is a partial schematic diagram of the outer sleeve.
图中： 1-内针，1.1-内针的尾部，2-外套管，2.2-外套管的尾部，3-内针手柄，4-外套管手柄，5-单刻度环，6-双刻度环，7-容腔。 In the figure: 1-inner needle, 1.1-tail of inner needle, 2-outer sleeve, 2.2-tail of outer sleeve, 3-inner needle handle, 4-outer sleeve handle, 5-single scale ring, 6-double scale ring , 7-cavity.
具体实施方式 detailed description
为能清楚说明本方案的技术特点，下面通过具体实施方式，并结合其附图，对本方案进行阐述。 In order to clearly illustrate the technical characteristics of this solution, the following will describe this solution through specific implementation modes and in conjunction with the accompanying drawings.
实施例1 Example 1
如图1所示，一种磁共振兼容性穿刺针，包括手柄、内针1和外套管2，所述内针1嵌入外套管2，并且内针的尾部1.1穿出外套管的尾部2.1所述内针的尾部1.1为半圆球结构，穿刺时，内针1与外套管2相对固定，没有滑动，穿刺完成后，将内针1从外套管2内拔出。 As shown in Figure 1, a magnetic resonance compatible puncture needle includes a handle, an inner needle 1 and an outer sleeve 2, the inner needle 1 is embedded in the outer sleeve 2, and the tail portion 1.1 of the inner needle passes through the tail portion 2.1 of the outer sleeve. The tail part 1.1 of the inner needle is a semi-spherical structure. When puncturing, the inner needle 1 and the outer sleeve 2 are relatively fixed without sliding. After the puncture is completed, the inner needle 1 is pulled out from the outer sleeve 2.
实施例2 Example 2
如图2所示，一种磁共振兼容性穿刺针，包括手柄、内针1和外套管2，所述内针1嵌入外套管2，并且内针的尾部1.1穿出外套管的尾部2.1，所述内针的尾部1.1为尖头结构。穿刺时，内针1与外套管2相对固定，没有滑动，穿刺完成后，将内针1从外套管2内拔出。 As shown in Figure 2, a magnetic resonance compatible puncture needle includes a handle, an inner needle 1 and an outer sleeve 2, the inner needle 1 is embedded in the outer sleeve 2, and the tail 1.1 of the inner needle passes through the tail 2.1 of the outer sleeve, The tail 1.1 of the inner needle is a pointed structure. When puncturing, the inner needle 1 and the outer sleeve 2 are relatively fixed without sliding. After the puncture is completed, the inner needle 1 is pulled out from the outer sleeve 2 .
实施例3 Example 3
如图1和图3所示，本实施例是对实施例1的进一步优化，在本发明中，所述外套管的尾部2.1为平头结构，也就是说，外套管的尾部2.1设置有平齐的端面，所述内针的尾部1.1为半圆球结构，所述内针的尾部1.1半圆球的直径与内针1的中部的直径相等。 As shown in Figures 1 and 3, this embodiment is a further optimization of Embodiment 1. In the present invention, the tail portion 2.1 of the outer sleeve is a flat head structure, that is to say, the tail portion 2.1 of the outer sleeve is provided with a flush The end face of the inner needle, the tail 1.1 of the inner needle is a hemispherical structure, and the diameter of the hemispherical hemisphere of the tail 1.1 of the inner needle is equal to the diameter of the middle part of the inner needle 1.
所述内针1能顺利通过外套管2内径，并且两者间隙极小，不同的材料摩擦力不一样，内针1的直径占外套管2内径的94%-97%。 The inner needle 1 can pass through the inner diameter of the outer sleeve 2 smoothly, and the gap between the two is extremely small, and the friction force of different materials is different. The diameter of the inner needle 1 accounts for 94%-97% of the inner diameter of the outer sleeve 2 .
所述外套管2为纯钽，所述内针1为钛合金。外套管2为纯钽，它的纯度高，而且铁的含量也很低，内针1为钛合金，纯钽和钛合金材料在磁共振环境内，受力、发热、伪影程度都很小，有利于判断磁共振穿刺针针尖位置，增加介入手术的成功概率。 The outer sleeve 2 is pure tantalum, and the inner needle 1 is titanium alloy. The outer sleeve 2 is pure tantalum, which has high purity and low iron content. The inner needle 1 is made of titanium alloy. Pure tantalum and titanium alloy materials have little force, heat, and artifacts in the magnetic resonance environment. , which is beneficial to judge the position of the needle tip of the magnetic resonance puncture needle and increase the success probability of the interventional operation.
所述内针的尾部1.1穿出外套管的尾部2.1的长度为a，所述a≥3mm，以保证顺利进针，a优选为3mm～7mm，在本实施例中，所述a为3.5mm。 The length of the tail portion 1.1 of the inner needle passing through the tail portion 2.1 of the outer sleeve is a, and the a is greater than or equal to 3 mm to ensure smooth needle insertion. A is preferably 3 mm to 7 mm. In this embodiment, the a is 3.5 mm .
所述手柄包括与内针1固定连接的内针手柄3，以及与外套管2固定连接的外套管手柄4，所述内针手柄3与外套管手柄4为可拆卸的固定连接。 The handle includes an inner needle handle 3 fixedly connected with the inner needle 1, and an outer sleeve handle 4 fixedly connected with the outer sleeve 2, and the inner needle handle 3 and the outer sleeve handle 4 are detachably fixedly connected.
所述内针手柄3设置有连接孔，所述连接孔的内壁上设置有连接螺纹，所述外套管手柄4一端的外壁上设置有连接螺纹。 The inner needle handle 3 is provided with a connection hole, the inner wall of the connection hole is provided with a connection thread, and the outer wall of one end of the outer sleeve handle 4 is provided with a connection thread.
所述外套管2的长度为10cm或15cm或18cm或20cm。 The length of the outer sleeve 2 is 10cm or 15cm or 18cm or 20cm.
所述外套管2与外套管手柄4胶粘。 The outer sleeve 2 is glued to the outer sleeve handle 4 .
所述内针手柄3和外套管手柄4为塑料材质，一方面塑料材质无磁，另一方面，轻便，方便进针。 The inner needle handle 3 and the outer sleeve handle 4 are made of plastic material. On the one hand, the plastic material is non-magnetic, and on the other hand, it is light and convenient for needle insertion.
所述内针手柄3和外套管手柄4形成一个容腔7。 The inner needle handle 3 and the outer cannula handle 4 form a cavity 7 .
所述外套管2上设置有刻度环，所述刻度环包括单刻度环5和双刻度环6。以外套管的尾部2.1为基准，每隔 10mm 打单刻度环5，每隔50mm 打双刻度环6，单刻度环5宽度为0.5mm，双刻度环6由相距0.5mm 的两个单刻度环组成；设置刻度环能够在任何角度都可以看到进针情况，且更加精确的判断磁共振穿刺针的深度以及穿刺针的针尖位置，方便计算进针深度。 A scale ring is provided on the outer sleeve 2 , and the scale ring includes a single scale ring 5 and a double scale ring 6 . Based on the tail 2.1 of the outer casing, a single scale ring 5 is printed every 10mm, and a double scale ring 6 is printed every 50mm. The width of the single scale ring 5 is 0.5mm, and the double scale ring 6 consists of two single scale rings with a distance of 0.5mm Composition; setting the scale ring can see the needle insertion situation at any angle, and judge the depth of the magnetic resonance puncture needle and the position of the needle tip of the puncture needle more accurately, so as to facilitate the calculation of the needle insertion depth.
实施例4 Example 4
如图2和图3所示，本实施例是对实施例2的进一步优化，在本实施例中，所述外套管的尾部2.1为一平头结构，也就是说，外套管的尾部2.1设置有平齐的端面，所述内针的尾部1.1为三个菱形面环绕形成的尖头结构，内针的尾部由三个菱形面构成，所述三个菱形面的一个顶点集中为内针1的针尖。此外，所述内针的尾部1.1也可为多棱锥形的尖头结构。 As shown in Figures 2 and 3, this embodiment is a further optimization of Embodiment 2. In this embodiment, the tail portion 2.1 of the outer sleeve is a flat structure, that is to say, the tail portion 2.1 of the outer sleeve is provided with The end face is flush, the tail 1.1 of the inner needle is a pointed structure formed around three rhombus faces, the tail of the inner needle is composed of three rhombus faces, and one vertex of the three rhombus faces is concentrated as the inner needle 1 needle tip. In addition, the tail portion 1.1 of the inner needle can also be a pointed structure of a polygonal pyramid.
所述外套管2为纯钽，所述内针1为钛合金。外套管2为纯钽，它的纯度高，而且铁的含量也很低，内针1为钛合金，纯钽和钛合金材料在磁共振环境内，受力、发热、伪影程度都很小，有利于判断磁共振穿刺针针尖位置，增加介入手术的成功概率。 The outer sleeve 2 is pure tantalum, and the inner needle 1 is titanium alloy. The outer sleeve 2 is pure tantalum, which has high purity and low iron content. The inner needle 1 is made of titanium alloy. Pure tantalum and titanium alloy materials have little force, heat, and artifacts in the magnetic resonance environment. , which is beneficial to judge the position of the needle tip of the magnetic resonance puncture needle and increase the success probability of the interventional operation.
所述内针的尾部1.1穿出外套管的尾部2.1的长度为a，所述a≥3mm，以保证顺利进针，a优选为3mm～7mm，在本实施例中，所述a为3.5mm。 The length of the tail portion 1.1 of the inner needle passing through the tail portion 2.1 of the outer sleeve is a, and the a is greater than or equal to 3 mm to ensure smooth needle insertion. A is preferably 3 mm to 7 mm. In this embodiment, the a is 3.5 mm .
所述内针1能顺利通过外套管2内径，并且两者间隙极小，不同的材料摩擦力不一样，内针2的直径占外套管2内径的94%-97%。 The inner needle 1 can pass through the inner diameter of the outer sleeve 2 smoothly, and the gap between the two is extremely small, and the friction force of different materials is different. The diameter of the inner needle 2 accounts for 94%-97% of the inner diameter of the outer sleeve 2 .
所述手柄包括与内针1固定连接的内针手柄3，以及与外套管2固定连接的外套管手柄4，所述内针手柄3与外套管手柄4固定连接。 The handle includes an inner needle handle 3 fixedly connected with the inner needle 1 , and an outer sleeve handle 4 fixedly connected with the outer sleeve 2 , and the inner needle handle 3 is fixedly connected with the outer sleeve handle 4 .
所述内针手柄3和外套管手柄4形成一个容腔7。 The inner needle handle 3 and the outer cannula handle 4 form a cavity 7 .
所述内针手柄3设置有连接孔，所述连接孔的内壁上设置有连接螺纹，所述外套管手柄4一端的外壁上设置有连接螺纹。 The inner needle handle 3 is provided with a connection hole, the inner wall of the connection hole is provided with a connection thread, and the outer wall of one end of the outer sleeve handle 4 is provided with a connection thread.
所述外套管2的长度为10cm或15cm或18cm或20cm。 The length of the outer sleeve 2 is 10cm or 15cm or 18cm or 20cm.
所述外套管2与外套管手柄4胶粘。 The outer sleeve 2 is glued to the outer sleeve handle 4 .
所述内针手柄3和外套管手柄4为塑料材质，一方面塑料材质无磁，另一方面，轻便，方便进针。 The inner needle handle 3 and the outer sleeve handle 4 are made of plastic material. On the one hand, the plastic material is non-magnetic, and on the other hand, it is light and convenient for needle insertion.
所述外套管2上设置有刻度环，所述刻度环包括单刻度环5和双刻度环6。以外套管的尾部2.1为基准，每隔 10mm 打单刻度环5，每隔50mm 打双刻度环6，单刻度环5宽度为0.5mm，双刻度环6由相距0.5mm 的两个单刻度环组成；设置刻度环能够在任何角度都可以看到进针情况，且更加精确的判断磁共振穿刺针的深度以及穿刺针的针尖位置，方便计算进针深度。 A scale ring is provided on the outer sleeve 2 , and the scale ring includes a single scale ring 5 and a double scale ring 6 . Based on the tail 2.1 of the outer casing, a single scale ring 5 is printed every 10mm, and a double scale ring 6 is printed every 50mm. The width of the single scale ring 5 is 0.5mm, and the double scale ring 6 consists of two single scale rings with a distance of 0.5mm Composition; setting the scale ring can see the needle insertion situation at any angle, and judge the depth of the magnetic resonance puncture needle and the position of the needle tip of the puncture needle more accurately, so as to facilitate the calculation of the needle insertion depth.
本发明中未经描述的技术特征可以通过或采用现有技术实现，在此不再赘述，当然，上述说明并非是对本发明的限制，本发明也并不仅限于上述实施方式，本领域的普通技术人员在本发明的实质范围内所做出的变化、改型、添加或替换，也应属于本发明的保护范围。 The technical features not described in the present invention can be realized by or adopting the prior art, and will not be described in detail here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above-mentioned embodiments. Ordinary skills in the art Changes, modifications, additions or substitutions made by personnel within the essential scope of the present invention shall also belong to the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510425890.5A CN106691548A (en) | 2015-07-20 | 2015-07-20 | Magnetic resonance compatibility puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510425890.5A CN106691548A (en) | 2015-07-20 | 2015-07-20 | Magnetic resonance compatibility puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106691548A true CN106691548A (en) | 2017-05-24 |
Family
ID=58900055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510425890.5A Pending CN106691548A (en) | 2015-07-20 | 2015-07-20 | Magnetic resonance compatibility puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106691548A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111150459A (en) * | 2020-01-17 | 2020-05-15 | 哈尔滨医科大学 | Dual channel trocars for magnetic field applications |
| CN114366254A (en) * | 2022-03-22 | 2022-04-19 | 中南大学 | Liver puncture outfit |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0723967A (en) * | 1993-07-09 | 1995-01-27 | Nissho Corp | Trocar |
| CN2598516Y (en) * | 2003-01-20 | 2004-01-14 | 赵玉平 | Puncturing trocar for curing intracranial hematoma |
| CN2808071Y (en) * | 2005-06-13 | 2006-08-23 | 林征宇 | Magnetic resonance compatible puncture needle |
| US20080109026A1 (en) * | 2004-10-28 | 2008-05-08 | Strategic Technology Assessment Group | Apparatus and Methods for Performing Brain Surgery |
| CN201516071U (en) * | 2009-07-16 | 2010-06-30 | 陈祎招 | Brain puncturation device |
| CN101773404A (en) * | 2010-01-05 | 2010-07-14 | 深圳先进技术研究院 | Magnetic resonance compatible puncture needle |
| CN103327915A (en) * | 2011-02-18 | 2013-09-25 | 泰尔茂株式会社 | Veress needle |
| CN203524708U (en) * | 2013-11-06 | 2014-04-09 | 耿欣妍 | Tuberculosis patient puncturing sampling device |
| CN203591303U (en) * | 2013-11-25 | 2014-05-14 | 王红军 | Expansion separator |
| CN204909585U (en) * | 2015-07-20 | 2015-12-30 | 李成利 | Compatible pjncture needle of magnetic resonance |
| CN204909586U (en) * | 2015-07-20 | 2015-12-30 | 李成利 | Compatible pjncture needle of magnetic resonance |
-
2015
- 2015-07-20 CN CN201510425890.5A patent/CN106691548A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0723967A (en) * | 1993-07-09 | 1995-01-27 | Nissho Corp | Trocar |
| CN2598516Y (en) * | 2003-01-20 | 2004-01-14 | 赵玉平 | Puncturing trocar for curing intracranial hematoma |
| US20080109026A1 (en) * | 2004-10-28 | 2008-05-08 | Strategic Technology Assessment Group | Apparatus and Methods for Performing Brain Surgery |
| CN2808071Y (en) * | 2005-06-13 | 2006-08-23 | 林征宇 | Magnetic resonance compatible puncture needle |
| CN201516071U (en) * | 2009-07-16 | 2010-06-30 | 陈祎招 | Brain puncturation device |
| CN101773404A (en) * | 2010-01-05 | 2010-07-14 | 深圳先进技术研究院 | Magnetic resonance compatible puncture needle |
| CN103327915A (en) * | 2011-02-18 | 2013-09-25 | 泰尔茂株式会社 | Veress needle |
| CN203524708U (en) * | 2013-11-06 | 2014-04-09 | 耿欣妍 | Tuberculosis patient puncturing sampling device |
| CN203591303U (en) * | 2013-11-25 | 2014-05-14 | 王红军 | Expansion separator |
| CN204909585U (en) * | 2015-07-20 | 2015-12-30 | 李成利 | Compatible pjncture needle of magnetic resonance |
| CN204909586U (en) * | 2015-07-20 | 2015-12-30 | 李成利 | Compatible pjncture needle of magnetic resonance |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111150459A (en) * | 2020-01-17 | 2020-05-15 | 哈尔滨医科大学 | Dual channel trocars for magnetic field applications |
| CN114366254A (en) * | 2022-03-22 | 2022-04-19 | 中南大学 | Liver puncture outfit |
| WO2023178836A1 (en) * | 2022-03-22 | 2023-09-28 | 中南大学 | Liver puncture outfit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209107491U (en) | A kind of Cutting balloon | |
| CN204601363U (en) | Rotary disposable endoscope entry needle | |
| JP7747787B2 (en) | Systems, devices and methods for performing percutaneous tracheotomy | |
| CN102500036A (en) | Magnetic-navigation joint type puncture needle | |
| CN213883428U (en) | Single-channel multi-angle puncture system | |
| CN101773404B (en) | Magnetic resonance compatible puncture needle | |
| CN208927391U (en) | Dual Balloon Catheter Device for Gastrointestinal Anastomosis | |
| CN106691548A (en) | Magnetic resonance compatibility puncture needle | |
| CN205626040U (en) | Be arranged in half month festival of trigeminal nerve to oppress art pjncture needle subassembly | |
| CN204352348U (en) | Integral type flexible gradual change blood vessel microtubular | |
| CN209450623U (en) | Suitable for the smaller soft mass of intrapulmonary and the localised puncture external member of lesser tubercle | |
| CN204909586U (en) | Compatible pjncture needle of magnetic resonance | |
| CN203576562U (en) | Novel cannula for transurethral laparoscopic surgery | |
| CN209808487U (en) | An auxiliary trocar for percutaneous lung puncture | |
| CN204601362U (en) | New disposable endoscope entry needle | |
| CN219461325U (en) | Local anesthetic needles for CT-guided percutaneous biopsy and percutaneous ablation | |
| CN201631373U (en) | Neuroendoscopic cranial surgery protective sheath system | |
| CN211723365U (en) | Dual channel trocars for magnetic field applications | |
| CN102671290B (en) | Active particle implantation puncture needle for digestive tract tumor endoscope | |
| CN109330635B (en) | Multifunctional intravascular tissue puncture needle and application method thereof | |
| CN208096796U (en) | Single-balloon ultrasound-guided puncture needle | |
| CN204601277U (en) | Magnetic-type disposable endoscope entry needle | |
| CN204601276U (en) | Fast-type disposable endoscope entry needle | |
| CN206063531U (en) | A New Type of Drainage Catheter with Developing Ring | |
| CN203303481U (en) | Mammary duct radiography injection needle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |