WO2020133071A1 - 一种脊柱椎弓根穿刺针 - Google Patents

一种脊柱椎弓根穿刺针 Download PDF

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Publication number
WO2020133071A1
WO2020133071A1 PCT/CN2018/124371 CN2018124371W WO2020133071A1 WO 2020133071 A1 WO2020133071 A1 WO 2020133071A1 CN 2018124371 W CN2018124371 W CN 2018124371W WO 2020133071 A1 WO2020133071 A1 WO 2020133071A1
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Prior art keywords
liquid storage
tube
storage tube
fixing sleeve
ring
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PCT/CN2018/124371
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English (en)
French (fr)
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王建国
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王建国
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Publication of WO2020133071A1 publication Critical patent/WO2020133071A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other 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
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B10/0233—Pointed or sharp biopsy instruments
    • A61B10/025—Pointed or sharp biopsy instruments for taking bone, bone marrow or cartilage samples
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other 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
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B10/0233—Pointed or sharp biopsy instruments
    • A61B10/0283—Pointed or sharp biopsy instruments with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/16—Antifouling paints; Underwater paints

Definitions

  • the present invention relates to the field of puncture needles, and more specifically, it relates to a spinal pedicle puncture needle.
  • Puncture is a commonly used surgical term in medicine. It is a diagnostic technique that inserts a puncture needle into the body cavity to extract secretions for testing, injects gas or contrast agent into the body cavity for contrast examination, or injects medicine into the body cavity.
  • the object of the present invention is to provide a spinal pedicle puncture needle to solve the problems mentioned in the background art.
  • the present invention provides the following technical solutions:
  • a spinal pedicle puncture needle includes a needle body made of stainless steel, the needle body is a vacuum tube, one end of the needle body is a needle tip, and the end of the needle body is away from the needle tip and inside the liquid storage tube
  • the liquid storage tank is in communication, the liquid storage tube and the needle body are detachably connected, and the liquid storage tube also has a first branch tube and a second branch tube that communicate with the liquid storage tank.
  • An air pipe is connected to an end of the first branch tube, and an elastic pressing ball is connected to the end of the air tube away from the first branch tube, the elastic pressing ball has an end, and a first gas unidirectional is provided in the end
  • a second gas check valve is provided in the gas tube near the elastic pressing ball, and a blocking cover is screwed to the outside of the second branch tube.
  • the tip of the puncture needle is detachably connected to the liquid storage tube, so the two can be detached for cleaning and disinfection.
  • the operator can press the elastic pressure
  • the ball causes the elastic pressing ball to contract.
  • the first gas check valve will exhaust from the elastic pressing ball to the end.
  • the elastic pressing ball will recover the elasticity.
  • the tube is sucked through the hose and the second gas check valve. The negative pressure will be generated in the liquid storage tube and the tissue fluid will be sucked.
  • the blocking tissue at the end of the second branch can be released to release the collected tissue fluid;
  • the pedicle puncture needle is more convenient to use, and each component can be disassembled, convenient for cleaning and disinfection, can be used multiple times, and is more green and environmentally friendly.
  • the end of the needle body has a ring part integrally formed with the needle body, the ring part is provided with a ring groove on the side away from the needle body, and the liquid storage tube is provided with the liquid storage
  • the first branch pipe has a first fixing sleeve integrally formed with the first branch pipe at the end away from the liquid storage pipe
  • the gas pipe has a second fixing sleeve fixed at the end away from the elastic pressing ball
  • the front cross section of the first fixing sleeve and the second fixing sleeve are both L-shaped, the second fixing sleeve is inserted into the first fixing sleeve, and the outer wall of the second fixing sleeve is also fixed with a A layer of annular gasket, the second fixing sleeve is snap-locked when inserted into the first fixing sleeve.
  • the second fixing sleeve is inserted into the first fixing sleeve, and the second fixing sleeve and The first fixing sleeve has a good sealing effect.
  • two sliding grooves are opened in the second fixing sleeve, and an insertion block is slidingly connected in the two sliding grooves, and a spring is connected between the insertion block and the sliding groove, and the first A fixing sleeve is provided with a slot into which the insertion block is inserted.
  • annular groove with a circular cross section is jointly provided on a surface of the ring portion and the liquid storage tube close to each other, and an O-ring is provided in the annular groove.
  • the O-ring placed in the circular annular groove jointly opened by the ring part and the liquid storage tube on the side close to each other can increase the sealing effect of the connection between the ring part and the liquid storage tube on the needle body .
  • the second branch pipe has a shaft shoulder integrally formed with the second branch pipe, and a sealing ring is fixed at the end of the blocking cover near the shaft shoulder.
  • the liquid storage tube has a protruding block integrally formed with the liquid storage tube at an end away from the needle body, a threaded hole is opened in the protruding block, and a fixing rod is screwed in the threaded hole, The fixing rod is fixed with a handle at an end away from the convex block.
  • the surface of the liquid storage tube is also coated with a layer of antifouling coating, which is prepared by the following method:
  • Preparation of anti-fouling coating solution add vinyl alcohol and ethanol to the pre-preparation solution of anti-fouling coating obtained in S1, and then stir well to obtain an anti-fouling coating solution;
  • Coating spray the anti-fouling coating solution obtained by S2 uniformly to the outer surface of the liquid storage tube by using a spray gun;
  • methyl methacrylate, polyethylene, polypropylene, propane lactone, acrylic acid and ethyl acetate are mixed uniformly and then added to the reaction kettle, and the temperature in the reaction kettle is heated to 137°C, and then Incubate for 35 minutes, then cool to room temperature to obtain an antifouling coating pre-preparation solution.
  • the thickness of the anti-fouling coating on the surface of the liquid storage tube in S2 is 1 mm.
  • the anti-fouling coating on the surface of the liquid storage tube can prevent the surface of the liquid storage tube from becoming dirty and difficult to clean.
  • the present invention mainly has the following beneficial effects:
  • the needle tip in the puncture needle is detachably connected to the liquid storage tube, so the two can be disassembled for cleaning and disinfection.
  • the puncture needle reaches the tissue fluid to be sucked, the operator can press the elastic pressing ball to make the elastic pressing ball Contraction, when the elastic compression ball contracts, the first gas check valve will exhaust from the elastic compression ball to the end.
  • the elastic compression ball will pass through the hose and the first The two-gas one-way valve inhales, negative pressure will be generated in the storage tube, and tissue fluid will be sucked.
  • FIG. 1 is one of structural cross-sectional views of an embodiment provided by the present invention.
  • FIG. 2 is an enlarged schematic structural view of part A in FIG. 1;
  • FIG. 3 is an enlarged schematic structural view of part B in FIG. 1;
  • FIG. 5 is a second structural schematic diagram of an embodiment provided by the present invention.
  • FIG. 6 is a second structural cross-sectional view of an embodiment provided by the present invention.
  • FIG. 7 is an enlarged schematic structural view of part C in FIG. 6;
  • FIG. 8 is an enlarged schematic structural view of part D in FIG. 6;
  • FIG. 9 is an enlarged schematic view of part E in FIG. 6.
  • a spinal pedicle puncture needle includes a needle body 1 made of stainless steel, wherein the needle body 1 is a vacuum tube, one end of the needle body 1 is a needle tip 10, and the outer diameter of the needle body 1 is 0.3 mm, the needle body 1 communicates with the reservoir 20 inside the reservoir tube 2 at the end away from the needle tip 10.
  • the reservoir tube 2 is detachably connected to the needle body 1;
  • the liquid storage tube 2 also has a first branch tube 21 and a second branch tube 22 communicating with the liquid storage tank 20, wherein an air tube 210 is connected to the end of the first branch tube 21, and the air tube 210 is away from the first branch tube 21
  • the elastic pressing ball 211 is connected to one end, and the elastic pressing ball 211 has a tip 2110, a first gas check valve 2111 is provided in the tip 2110, and a second gas is provided near the elastic pressing ball 211.
  • One-way valve 2101, and a blocking cap 221 is screwed on the outside of the second branch tube 22; since the needle tip 10 in the puncture needle and the storage tube 2 are detachably connected, the two can be disassembled for cleaning and disinfection, when When the puncture needle reaches the tissue fluid to be aspirated, the operator can press the elastic pressing ball 211 to make the elastic pressing ball 211 contract.
  • the elastic pressing ball 211 contracts, the elastic pressing ball 211 will be pulled from the elastic pressing ball 211 under the action of the first gas check valve 2111 The inward end 2110 is exhausted, and the elastic pressing ball 211 in order to restore the elasticity, the elastic pressing ball 211 will inhale from the liquid storage tube 2 through the hose and the second gas check valve 2101, and a negative pressure will be generated in the liquid storage tube 2 , Will absorb tissue fluid, when the puncture is completed, open the blocking cap 221 at the end of the second branch 22 to release the collected tissue fluid; therefore, the spinal pedicle puncture needle is more convenient to use, and each component can be disassembled for cleaning and cleaning. It can be used repeatedly for disinfection and is more environmentally friendly.
  • a ring portion 11 integrally formed with the needle body 1 at the end of the needle body 1, wherein the ring portion 11 is located at The side away from the needle body 1 is provided with a ring groove 110, and the liquid storage tube 2 has an insert ring 23 integrally formed with the liquid storage tube 2.
  • the insert ring 23 When the ring portion 11 is connected to the liquid storage tube 2, the insert ring 23 is inserted in In the ring groove 110, a threaded ring sleeve 111 is screwed together on the outside of the liquid storage tube 2 and the ring portion 11; when the liquid storage tube 2 is mounted on the ring portion 11 at the end of the needle body 1, the liquid storage tube 2
  • the upper insert ring 23 is inserted into the ring groove 110 on the ring portion 11, and then tightening the threaded ring sleeve 111 outside the ring portion 11 and the liquid storage tube 2 can fix the liquid storage tube 2 and the ring portion 11, so the liquid storage Disassembly between the tube 2 and the ring portion 11 on the needle body 1 is convenient and the connection is reliable.
  • the first branch tube 21 has a first fixing sleeve 212 integrally formed with the first branch tube 21 at the end away from the liquid storage tube 2 ,
  • the second fixed sleeve 2102 is fixed on the end of the trachea 210 away from the elastic pressing ball 211, wherein the first fixed sleeve 212 and the second fixed sleeve 2102 are both L-shaped in cross section, and the second fixed sleeve 2102 is inserted into the first fixed In the sleeve 212, a ring seal 21021 is also fixed on the outer wall of the second fixing sleeve 2102.
  • the second fixing sleeve 2102 is snap-locked when inserted into the first fixing sleeve 212; when the air pipe 210 is installed in the second branch pipe 22 When going up, the second fixing sleeve 2102 is inserted into the first fixing sleeve 212, the ring seal 21021 on the outer wall of the second fixing sleeve 2102 will make the second fixing sleeve 2102 and the first fixing sleeve 212 have a good
  • two sliding grooves 21022 are opened in the second fixing sleeve 2102, and both slide in both sliding grooves 21022
  • the insert block 21023 is connected, and a spring 21024 is connected between the insert block 21023 and the slide groove 21022, and a slot 2121 for inserting the insert block 21023 is opened on the first fixing sleeve 212; when the second fixing sle
  • the ring portion 11 and the liquid storage tube 2 are jointly provided with a cross section on the side close to each other A circular annular groove 112, and an O-ring 1121 is provided in the annular groove 112, and the ring portion 11 and the liquid storage tube 2 are placed in a shape of 0 in the circular annular groove 112 that is jointly opened on the side close to each other
  • the ring can increase the sealing effect of the connection between the upper ring portion 11 of the needle body 1 and the liquid storage tube 2.
  • the second branch pipe 22 has an integrally formed shoulder 222 with the second branch pipe 22, and A sealing ring 2211 is fixed at the end of the blocking cap 221 near the shaft shoulder 222.
  • the sealing ring 2211 at the end of the blocking cap 221 will interfere with the second
  • the integrally formed shoulder 22 of the branch pipe 22 makes the plug 221 have the effect of sealing the liquid leakage.
  • the liquid storage tube 2 has a protrusion 24 integrally formed with the liquid storage tube 2 at the end away from the needle body 1, and a screw hole is opened in the protrusion 24 241, and a fixing rod 242 is threadedly connected in the threaded hole 241, and at the same time, the fixing rod 242 is fixed with a handle 2421 at the end away from the convex block 24, and is screwed into the threaded hole 241 in the convex block 24 of the end of the liquid storage tube 2 through manipulation
  • the handle 2421 at the end of the inner fixing rod 242 can facilitate the operator to manipulate the puncture needle to perform the puncture operation.
  • the first gas check valve 2111 and the second gas check valve 2101 are composed of a valve body, a valve cover and a diaphragm.
  • One end of the valve body is a joint with a central through hole, and the other end is provided with a threaded hole 241 is connected to the valve body, one or more diaphragms are placed in the valve body cavity, a central through hole is provided on the valve cover, one end is a joint, the other end extends into the valve body cavity and is provided at the end 2110
  • One or more ventilation slots can achieve the one-way effect under the pressure of the airflow.
  • the above-mentioned effect can be achieved by using the CV-01 type gas check valve produced by Shenchi Pneumatic Co., Ltd.
  • Embodiment 1 The difference from Embodiment 1 is that the surface of the liquid storage tube 2 is coated with an anti-fouling coating. Since the liquid storage tube 2 is attached to the ring portion 11 at the end of the needle body 1, the air tube 210 is connected to Both the first branch 21 and the plug 221 need to contact the liquid storage tube 2 when connecting the blocking cap 221.
  • the surface of the liquid storage tube 2 is easy to accumulate dust. It is difficult to prevent the accumulated dust from sticking to the surface of the liquid storage tube 2 For cleaning, the surface of the liquid storage tube 2 is coated with an antifouling coating, which makes the liquid storage tube 2 easy to clean. Therefore, a method for preparing an antifouling coating is provided, which has the advantages of short preparation process and simple preparation
  • the preparation method of the anti-fouling coating on the surface of the liquid storage tube 2 is as follows:
  • Preparation of anti-fouling coating solution add vinyl alcohol and ethanol to the pre-preparation solution of anti-fouling coating obtained in S1, and then stir well to obtain an anti-fouling coating solution;
  • the antifouling coating solution obtained by S2 is evenly sprayed onto the outer surface of the liquid storage tube 2 by using a spray gun, and the thickness of the antifouling coating on the surface of the liquid storage tube 2 is 1 mm;
  • Drying Dry the storage tube 2 in a ventilated and cool place.
  • Example 2 The difference from Example 2 lies in the preparation of the antifouling coating on the surface of the liquid storage tube 2, wherein the preparation method of the antifouling coating is as follows:
  • Preparation of anti-fouling coating solution add vinyl alcohol and ethanol to the pre-preparation solution of anti-fouling coating obtained in S1, and then stir well to obtain an anti-fouling coating solution;
  • the antifouling coating solution obtained by S2 is evenly sprayed onto the outer surface of the liquid storage tube 2 by using a spray gun, and the thickness of the antifouling coating on the surface of the liquid storage tube 2 is 1 mm;
  • Drying Dry the storage tube 2 in a ventilated and cool place.
  • Example 2 The difference from Example 2 lies in the preparation of the antifouling coating on the surface of the liquid storage tube 2, wherein the preparation method of the antifouling coating is as follows:
  • Preparation of anti-fouling coating solution add vinyl alcohol and ethanol to the pre-preparation solution of anti-fouling coating obtained in S1, and then stir well to obtain an anti-fouling coating solution;
  • the antifouling coating solution obtained by S2 is evenly sprayed onto the outer surface of the liquid storage tube 2 by using a spray gun, and the thickness of the antifouling coating on the surface of the liquid storage tube 2 is 1 mm;
  • Drying Dry the storage tube 2 in a ventilated and cool place.
  • Example 2 The difference from Example 2 lies in the preparation of the antifouling coating on the surface of the liquid storage tube 2, wherein the preparation method of the antifouling coating is as follows:
  • the antifouling coating solution obtained by S2 is evenly sprayed onto the outer surface of the liquid storage tube 2 by using a spray gun, and the thickness of the antifouling coating on the surface of the liquid storage tube 2 is 1 mm;
  • Drying Dry the storage tube 2 in a ventilated and cool place.
  • Example 2 The difference from Example 2 lies in the preparation of the antifouling coating on the surface of the liquid storage tube 2, wherein the preparation method of the antifouling coating is as follows:
  • Preparation of anti-fouling coating solution add vinyl alcohol and ethanol to the pre-preparation solution of anti-fouling coating obtained in S1, and then stir well to obtain an anti-fouling coating solution;
  • the antifouling coating solution obtained by S2 is evenly sprayed onto the outer surface of the liquid storage tube 2 by using a spray gun, and the thickness of the antifouling coating on the surface of the liquid storage tube 2 is 1 mm;
  • Drying Dry the storage tube 2 in a ventilated and cool place.
  • Example 2 The difference from Example 2 lies in the preparation of the antifouling coating on the surface of the liquid storage tube 2, wherein the preparation method of the antifouling coating is as follows:
  • Preparation of anti-fouling coating solution add vinyl alcohol and ethanol to the pre-preparation solution of anti-fouling coating obtained in S1, and then stir well to obtain an anti-fouling coating solution;
  • the antifouling coating solution obtained by S2 is evenly sprayed onto the outer surface of the liquid storage tube 2 by using a spray gun, and the thickness of the antifouling coating on the surface of the liquid storage tube 2 is 1 mm;
  • Drying Dry the storage tube 2 in a ventilated and cool place.
  • Example 2 The difference from Example 2 lies in the preparation of the antifouling coating on the surface of the liquid storage tube 2, wherein the preparation method of the antifouling coating is as follows:
  • Preparation of anti-fouling coating solution add vinyl alcohol and ethanol to the pre-preparation solution of anti-fouling coating obtained in S1, and then stir well to obtain an anti-fouling coating solution;
  • the antifouling coating solution obtained by S2 is evenly sprayed onto the outer surface of the liquid storage tube 2 by using a spray gun, and the thickness of the antifouling coating on the surface of the liquid storage tube 2 is 1 mm;
  • Drying Dry the storage tube 2 in a ventilated and cool place.
  • the storage tube 2 coated with the antifouling coating in Examples 2-8 was tested for surface hardness and peel strength. For comparison, the data of all the examples are normalized based on the data of Example 2.
  • Example 2 100% 100% Example 3 102% 98% Example 4 101% 101% Example 5 105% 106% Example 6 103% 104% Example 7 98% 97% Example 8 102% 101%

Abstract

一种脊柱椎弓根穿刺针，其技术方案要点是：包括材质为不锈钢的针体（1），针体（1）为真空管状，针体（1）的一端为针尖（10），针体（1）在远离针尖（10）的一端与储液管（2）内部的储液槽（20）连通，储液管（2）与针体（1）之间为可拆卸式连接，储液管（2）上还具有与储液槽（20）相互连通的第一支管（21）和第二支管（22），第一支管（21）端部连接有气管（210），气管（210）在远离第一支管（21）的一端连接有弹性按压球（211），弹性按压球（211）上具有端头（2110），端头（2110）内设置有第一气体单向阀（2111），气管（210）在靠近弹性按压球（211）内设置有第二气体单向阀（2101），故脊柱椎弓根穿刺针使用时较为方便，且各个部件可以进行拆卸，方便清洗和消毒，可以多次使用，较为绿色环保。

Description

一种脊柱椎弓根穿刺针 技术领域
本发明涉及穿刺针领域，更具体地说，它涉及一种脊柱椎弓根穿刺针。
背景技术
穿刺是一个医学常用手术用语，是将穿刺针刺入体腔抽取分泌物做化验，向体腔注入气体或造影剂做造影检查，或向体腔内注入药物的一种诊疗技术。
当患者进行经皮脊柱内固定术时，利用椎弓根螺钉技术固定脊柱是外科手术中相当常见的，为了确保手术的安全和判断是否可以进行手术，医生在进行经皮椎弓根螺钉置入术之前需要进行穿刺检查，穿刺用到的工具就是穿刺针，利用穿刺针抽取些许组织液进行检测。
现有的脊柱椎弓根穿刺针大多都为一次性工具，故造成了很多资源的浪费，不够环保；且现有的脊柱椎弓根穿刺针在到达要吸取的组织液处，需要将穿刺针端头连接吸气泵吸取组织液，操作使用起来较为不便，因此需要进行改进。
发明内容
针对现有技术存在的不足，本发明的目的在于提供一种脊柱椎弓根穿刺针，以解决背景技术中提到的问题。
为实现上述目的，本发明提供了如下技术方案：
一种脊柱椎弓根穿刺针，包括材质为不锈钢的针体，所述针体为真空管状，所述针体的一端为针尖，所述针体在远离所述针尖的一端与储液管内部的储液槽连通，所述储液管与所述针体之间为可拆卸式连接，所述储液管上还具有与所述储液槽相互连通的第一支管和第二支管，所述第一支管端部连接有气管，所述气管在远离所述第一支管 的一端连接有弹性按压球，所述弹性按压球上具有端头，所述端头内设置有第一气体单向阀，所述气管在靠近所述弹性按压球内设置有第二气体单向阀，所述第二支管外部螺纹连接有堵盖。
通过采用上述技术方案，穿刺针中的针尖与储液管之间为可拆卸连接，故两者之间可以拆卸进行清洗消毒，当穿刺针到达要吸取的组织液处时，操作者可以按压弹性按压球，使得弹性按压球收缩，当弹性按压球收缩时在第一气体单向阀的作用下将从弹性按压球内向端头处排气，弹性按压球为了恢复弹性，弹性按压球会从储液管内经过软管和第二气体单向阀吸气，储液管内会产生负压，会吸取组织液，当穿刺结束后，打开第二支管端部的堵盖能够放出收集到的组织液；故脊柱椎弓根穿刺针使用时较为方便，且各个部件可以进行拆卸，方便清洗和消毒，可以多次使用，较为绿色环保。
进一步地，所述针体端部具有与所述针体一体成型的环部，所述环部在远离所述针体的一面开设有环槽，所述储液管上具有与所述储液管一体成型的插环，所述插环插接在所述环槽内，所述储液管和所述环部的外部共同螺纹连接有螺纹环套。
通过采用上述技术方案，当将储液管安装到针体端部的环部时，将储液管上的插环插入到环部上的环槽，之后拧紧环部和储液管外部的螺纹环套就能将储液管和环部之间固定，故储液管和针体上的环部之间拆卸方便，连接可靠。
进一步地，所述第一支管在远离所述储液管的一端具有与所述第一支管一体成型的第一固定套，所述气管在远离所述弹性按压球的一端固定有第二固定套，所述第一固定套和所述第二固定套的正截面均为L形，所述第二固定套插接在所述第一固定套内，所述第二固定套的外壁还固定有一层环形密封垫，所述第二固定套在插入到第一固定套内被卡接锁定。
通过采用上述技术方案，当将气管安装到第二支管上时，将第二 固定套插接在第一固定套内，在第二固定套外壁的环形密封垫作用下会使得第二固定套和第一固定套之间具有良好的密封效果。
进一步地，所述第二固定套内开设有两个滑槽，两个所述滑槽内均滑移连接有插块，所述插块与所述滑槽之间连接有弹簧，所述第一固定套上开设有供所述插块插入的插槽。
通过采用上述技术方案，当第二固定套插接到第一固定套内时，在第二固定套内滑槽中的弹簧作用下会顶动插块进入到第一固定套上开设的插槽内，从而将第二固定套和第一固定套之间卡接锁定。
进一步地，所述环部和所述储液管在相互靠近的一面共同开设有截面为圆形的环形凹槽，所述环形凹槽内设置有O形圈。
通过采用上述技术方案，环部和储液管在相互靠近的一面上共同开设的圆形环形凹槽内放置的0形圈能够增大针体上环部和储液管之间连接的密封效果。
进一步地，所述第二支管上具有与所述第二支管一体成型的轴肩，所述堵盖在靠近所述轴肩的端部固定有一层密封圈。
通过采用上述技术方案，当操作者拧紧第二支管端部的堵盖时，堵盖端部的密封圈将会抵触在与第二支管一体成型的轴肩上，使得堵盖具有密封漏液的效果。
进一步地，所述储液管在远离所述针体的一端具有与所述储液管一体成型的凸块，所述凸块内开设有螺纹孔，所述螺纹孔内螺纹连接有固定杆，所述固定杆在远离所述凸块的一端固定有手柄。
通过采用上述技术方案，通过操控螺纹连接在储液管端部凸块中螺纹孔内的固定杆端部的手柄能够方便操作者操控穿刺针进行穿刺操作。
所述储液管的表面还涂覆有一层防污涂层，所述防污涂层由如下方法制备：
取以下以重量计各组分原料备用：甲基丙烯酸甲酯32-35份、聚 乙烯38-42份、聚丙烯25-27份、丙磺内酯8-12份、乙烯醇14-16份、丙烯酸6-10份、乙酸乙酯4-7份、乙醇18-20份；
S1、制作防污涂层预制备液：将甲基丙烯酸甲酯、聚乙烯、聚丙烯、丙磺内酯、丙烯酸和乙酸乙酯混合均匀后加入到反应釜内，将反应釜内温度加热至136-138℃，然后保温30-40min，之后冷却到室温得到防污涂层预制备液；
S2、制备防污涂层溶液：将S1得到的防污涂层预制备液内加入乙烯醇和乙醇，之后充分搅拌均匀，得到防污涂层溶液；
S3、涂覆：利用喷枪将S2得到的防污涂层溶液均匀的喷涂到储液管的外表面；
S4、烘干：在通风阴凉处将储液管烘干。
进一步的，所述S1中将甲基丙烯酸甲酯、聚乙烯、聚丙烯、丙磺内酯、丙烯酸和乙酸乙酯混合均匀后加入到反应釜内，将反应釜内温度加热至137℃，然后保温35min，之后冷却到室温得到防污涂层预制备液。
进一步的，所述S2中储液管表面的防污涂层厚度为1mm。
通过采用上述技术方案，储液管表面的防污涂层能够防止储液管表面变得脏污难以清洗。
综上所述，本发明主要具有以下有益效果：
穿刺针中的针尖与储液管之间为可拆卸连接，故两者之间可以拆卸进行清洗消毒，当穿刺针到达要吸取的组织液处时，操作者可以按压弹性按压球，使得弹性按压球收缩，当弹性按压球收缩时在第一气体单向阀的作用下将从弹性按压球内向端头处排气，弹性按压球为了恢复弹性，弹性按压球会从储液管内经过软管和第二气体单向阀吸气，储液管内会产生负压，会吸取组织液，当穿刺结束后，打开第二支管端部的堵盖能够放出收集到的组织液；故脊柱椎弓根穿刺针使用时较为方便，且各个部件可以进行拆卸，方便清洗和消毒，可以多次 使用，较为绿色环保。
附图说明
图1为本发明提供的一种实施方式的结构剖视图之一；
图2为图1中A部的放大结构示意图；
图3为图1中B部的放大结构示意图；
图4为本发明提供的一种实施方式的结构示意图之一；
图5为本发明提供的一种实施方式的结构示意图之二；
图6为本发明提供的一种实施方式的结构剖视图之二；
图7为图6中C部的放大结构示意图；
图8为图6中D部的放大结构示意图；
图9为图6中E部的放大结构示意图。
图中：1、针体；10、针尖；2、储液管；20、储液槽；21、第一支管；22、第二支管；210、气管；211、弹性按压球；2110、端头；2111、第一气体单向阀；2101、第二气体单向阀；221、堵盖；11、环部；110、环槽；23、插环；111、螺纹环套；212、第一固定套；2102、第二固定套；21021、环形密封垫；21022、滑槽；21023、插块；21024、弹簧；2121、插槽；112、环形凹槽；1121、O形圈；222、轴肩；2211、密封圈；24、凸块；241、螺纹孔；242、固定杆；2421、手柄。
具体实施方式
以下结合附图1-9对本发明作进一步详细说明。
实施例1
参考图1和图2，一种脊柱椎弓根穿刺针，包括材质为不锈钢的针体1，其中针体1为真空管状，针体1的一端为针尖10，针体1的外径为0.3mm，针体1在远离针尖10的一端与储液管2内部的储液 槽20连通，为了方便和清洗，储液管2与针体1之间为可拆卸式连接；为了达到吸取组织液的目的，在储液管2上还具有与储液槽20相互连通的第一支管21和第二支管22，其中在第一支管21端部连接有气管210，将气管210在远离第一支管21的一端连接有弹性按压球211，在弹性按压球211上具有端头2110，在端头2110内设置有第一气体单向阀2111，将气管210在靠近弹性按压球211内设置有第二气体单向阀2101，并在第二支管22外部螺纹连接有堵盖221；由于穿刺针中的针尖10与储液管2之间为可拆卸连接，故两者之间可以拆卸进行清洗消毒，当穿刺针到达要吸取的组织液处时，操作者可以按压弹性按压球211，使得弹性按压球211收缩，当弹性按压球211收缩时在第一气体单向阀2111的作用下将从弹性按压球211内向端头2110处排气，弹性按压球211为了恢复弹性，弹性按压球211会从储液管2内经过软管和第二气体单向阀2101吸气，储液管2内会产生负压，会吸取组织液，当穿刺结束后，打开第二支管22端部的堵盖221能够放出收集到的组织液；故脊柱椎弓根穿刺针使用时较为方便，且各个部件可以进行拆卸，方便清洗和消毒，可以多次使用，较为绿色环保。
参考图4、图6和图7，为了实现针体1与储液管2之间的拆卸和连接，在针体1端部具有与针体1一体成型的环部11，其中环部11在远离针体1的一面开设有环槽110，在储液管2上具有与储液管2一体成型的插环23，当环部11与储液管2连接时，将插环23插接在环槽110内，并在储液管2和环部11的外部共同螺纹连接有螺纹环套111；当将储液管2安装到针体1端部的环部11时，将储液管2上的插环23插入到环部11上的环槽110，之后拧紧环部11和储液管2外部的螺纹环套111就能将储液管2和环部11之间固定，故储液管2和针体1上的环部11之间拆卸方便，连接可靠。
参考图5、图6和图7，为了方便第一支管21与气管210之间的 连接，第一支管21在远离储液管2的一端具有与第一支管21一体成型的第一固定套212，气管210在远离弹性按压球211的一端固定有第二固定套2102，其中第一固定套212和第二固定套2102的正截面均为L形，第二固定套2102插接在第一固定套212内，在第二固定套2102的外壁还固定有一层环形密封垫21021，第二固定套2102在插入到第一固定套212内被卡接锁定；当将气管210安装到第二支管22上时，将第二固定套2102插接在第一固定套212内，在第二固定套2102外壁的环形密封垫21021作用下会使得第二固定套2102和第一固定套212之间具有良好的密封效果；为了实现第二固定套2102在插入到第一固定套212内被充分锁定，在第二固定套2102内开设有两个滑槽21022，并在两个滑槽21022内均滑移连接有插块21023，同时将插块21023与滑槽21022之间连接有弹簧21024，并在第一固定套212上开设有供插块21023插入的插槽2121；当第二固定套2102插接到第一固定套212内时，在第二固定套2102内滑槽21022中的弹簧21024作用下会顶动插块21023进入到第一固定套212上开设的插槽2121内，从而将第二固定套2102和第一固定套212之间卡接锁定。
参考图6和图7，为了增大储液管2与针体1端部上环部11之间连接的密封效果，将环部11和储液管2在相互靠近的一面共同开设有截面为圆形的环形凹槽112，并在环形凹槽112内设置有O形圈1121，环部11和储液管2在相互靠近的一面上共同开设的圆形环形凹槽112内放置的0形圈能够增大针体1上环部11和储液管2之间连接的密封效果。
参考图2、图6和图9，为了使得堵盖221拧在第二支管22端部具有良好的密封效果，在第二支管22上具有与第二支管22一体成型的轴肩222，并将堵盖221在靠近轴肩222的端部固定有一层密封圈2211，当操作者拧紧第二支管22端部的堵盖221时，堵盖221端部 的密封圈2211将会抵触在与第二支管22一体成型的轴肩222上，使得堵盖221具有密封漏液的效果。
参考图1和图3，为了方便操作者操控针体1，储液管2在远离针体1的一端具有与储液管2一体成型的凸块24，同时在凸块24内开设有螺纹孔241，并在螺纹孔241内螺纹连接有固定杆242，同时将固定杆242在远离凸块24的一端固定有手柄2421，通过操控螺纹连接在储液管2端部凸块24中螺纹孔241内的固定杆242端部的手柄2421能够方便操作者操控穿刺针进行穿刺操作。
且上述第一气体单向阀2111和第二气体单向阀2101均由阀体、阀盖和膜片所组成，阀体的一端是设有中心通孔的接头，另一端则设有螺纹孔241与阀体相连接，在阀体腔内放置一片或一片以上的膜片，在阀盖上设有中心通孔，一端为接头，另一端伸入阀体腔内并在其端头2110处设有一条或多条的通气槽，由膜片在气流压力作用下实现单向的功效，例如通过采用神驰气动有限公司生产的型号为CV-01型的气体单向阀就能实现上述的效果。
实施例2
与实施例1的不同之处在于在储液管2的表面涂覆有一层防污涂层，由于在将储液管2安装到针体1端部的环部11上、将气管210连接在第一支管21上、将堵盖221连接在第二支管22上时均需要接触储液管2，储液管2的表面很容易积累灰尘，为了防止积累的灰尘粘在储液管2表面难以清洗，故在储液管2的表面涂覆有一层防污涂层，使得储液管2方便清洁，故提供了一种防污涂层的制备方法，其具有制备流程短、制备简单的优点，其中储液管2表面防污涂层的制备方法如下：
取以下以重量计各组分原料备用：甲基丙烯酸甲酯32份、聚乙烯38份、聚丙烯25份、丙磺内酯8份、乙烯醇14份、丙烯酸6份、 乙酸乙酯4份、乙醇18份；
S1、制作防污涂层预制备液：将甲基丙烯酸甲酯、聚乙烯、聚丙烯、丙磺内酯、丙烯酸和乙酸乙酯混合均匀后加入到反应釜内，将反应釜内温度加热至137℃，然后保温35min，之后冷却到室温得到防污涂层预制备液；
S2、制备防污涂层溶液：将S1得到的防污涂层预制备液内加入乙烯醇和乙醇，之后充分搅拌均匀，得到防污涂层溶液；
S3、涂覆：利用喷枪将S2得到的防污涂层溶液均匀的喷涂到储液管2的外表面，储液管2表面的防污涂层厚度为1mm；
S4、烘干：在通风阴凉处将储液管2烘干。
实施例3
与实施例2的不同之处在于储液管2表面防污涂层的制备，其中防污涂层的制备方法如下：
取以下以重量计各组分原料备用：甲基丙烯酸甲酯33份、聚乙烯39份、聚丙烯26份、丙磺内酯9份、乙烯醇14份、丙烯酸6份、乙酸乙酯4份、乙醇18份；
S1、制作防污涂层预制备液：将甲基丙烯酸甲酯、聚乙烯、聚丙烯、丙磺内酯、丙烯酸和乙酸乙酯混合均匀后加入到反应釜内，将反应釜内温度加热至137℃，然后保温35min，之后冷却到室温得到防污涂层预制备液；
S2、制备防污涂层溶液：将S1得到的防污涂层预制备液内加入乙烯醇和乙醇，之后充分搅拌均匀，得到防污涂层溶液；
S3、涂覆：利用喷枪将S2得到的防污涂层溶液均匀的喷涂到储液管2的外表面，储液管2表面的防污涂层厚度为1mm；
S4、烘干：在通风阴凉处将储液管2烘干。
实施例4
与实施例2的不同之处在于储液管2表面防污涂层的制备，其中防污涂层的制备方法如下：
取以下以重量计各组分原料备用：甲基丙烯酸甲酯33份、聚乙烯39份、聚丙烯26份、丙磺内酯9份、乙烯醇16份、丙烯酸8份、乙酸乙酯7份、乙醇18份；
S1、制作防污涂层预制备液：将甲基丙烯酸甲酯、聚乙烯、聚丙烯、丙磺内酯、丙烯酸和乙酸乙酯混合均匀后加入到反应釜内，将反应釜内温度加热至137℃，然后保温35min，之后冷却到室温得到防污涂层预制备液；
S2、制备防污涂层溶液：将S1得到的防污涂层预制备液内加入乙烯醇和乙醇，之后充分搅拌均匀，得到防污涂层溶液；
S3、涂覆：利用喷枪将S2得到的防污涂层溶液均匀的喷涂到储液管2的外表面，储液管2表面的防污涂层厚度为1mm；
S4、烘干：在通风阴凉处将储液管2烘干。
实施例5
与实施例2的不同之处在于储液管2表面防污涂层的制备，其中防污涂层的制备方法如下：
取以下以重量计各组分原料备用：甲基丙烯酸甲酯34份、聚乙烯41份、聚丙烯27份、丙磺内酯9份、乙烯醇16份、丙烯酸8份、乙酸乙酯7份、乙醇18份；
S1、制作防污涂层预制备液：将甲基丙烯酸甲酯、聚乙烯、聚丙烯、丙磺内酯、丙烯酸和乙酸乙酯混合均匀后加入到反应釜内，将反应釜内温度加热至137℃，然后保温35min，之后冷却到室温得到防污涂层预制备液；
S2、制备防污涂层溶液：将S1得到的防污涂层预制备液内加入 乙烯醇和乙醇，之后充分搅拌均匀，得到防污涂层溶液；
S3、涂覆：利用喷枪将S2得到的防污涂层溶液均匀的喷涂到储液管2的外表面，储液管2表面的防污涂层厚度为1mm；
S4、烘干：在通风阴凉处将储液管2烘干。
实施例6
与实施例2的不同之处在于储液管2表面防污涂层的制备，其中防污涂层的制备方法如下：
取以下以重量计各组分原料备用：甲基丙烯酸甲酯34份、聚乙烯41份、聚丙烯27份、丙磺内酯12份、乙烯醇16份、丙烯酸10份、乙酸乙酯7份、乙醇18份；
S1、制作防污涂层预制备液：将甲基丙烯酸甲酯、聚乙烯、聚丙烯、丙磺内酯、丙烯酸和乙酸乙酯混合均匀后加入到反应釜内，将反应釜内温度加热至137℃，然后保温35min，之后冷却到室温得到防污涂层预制备液；
S2、制备防污涂层溶液：将S1得到的防污涂层预制备液内加入乙烯醇和乙醇，之后充分搅拌均匀，得到防污涂层溶液；
S3、涂覆：利用喷枪将S2得到的防污涂层溶液均匀的喷涂到储液管2的外表面，储液管2表面的防污涂层厚度为1mm；
S4、烘干：在通风阴凉处将储液管2烘干。
实施例7
与实施例2的不同之处在于储液管2表面防污涂层的制备，其中防污涂层的制备方法如下：
取以下以重量计各组分原料备用：甲基丙烯酸甲酯34份、聚乙烯41份、聚丙烯27份、丙磺内酯12份、乙烯醇16份、丙烯酸10份、乙酸乙酯7份、乙醇18份；
S1、制作防污涂层预制备液：将甲基丙烯酸甲酯、聚乙烯、聚丙烯、丙磺内酯、丙烯酸和乙酸乙酯混合均匀后加入到反应釜内，将反应釜内温度加热至136℃，然后保温40min，之后冷却到室温得到防污涂层预制备液；
S2、制备防污涂层溶液：将S1得到的防污涂层预制备液内加入乙烯醇和乙醇，之后充分搅拌均匀，得到防污涂层溶液；
S3、涂覆：利用喷枪将S2得到的防污涂层溶液均匀的喷涂到储液管2的外表面，储液管2表面的防污涂层厚度为1mm；
S4、烘干：在通风阴凉处将储液管2烘干。
实施例8
与实施例2的不同之处在于储液管2表面防污涂层的制备，其中防污涂层的制备方法如下：
取以下以重量计各组分原料备用：甲基丙烯酸甲酯35份、聚乙烯42份、聚丙烯27份、丙磺内酯12份、乙烯醇16份、丙烯酸10份、乙酸乙酯7份、乙醇20份；
S1、制作防污涂层预制备液：将甲基丙烯酸甲酯、聚乙烯、聚丙烯、丙磺内酯、丙烯酸和乙酸乙酯混合均匀后加入到反应釜内，将反应釜内温度加热至138℃，然后保温30min，之后冷却到室温得到防污涂层预制备液；
S2、制备防污涂层溶液：将S1得到的防污涂层预制备液内加入乙烯醇和乙醇，之后充分搅拌均匀，得到防污涂层溶液；
S3、涂覆：利用喷枪将S2得到的防污涂层溶液均匀的喷涂到储液管2的外表面，储液管2表面的防污涂层厚度为1mm；
S4、烘干：在通风阴凉处将储液管2烘干。
对实施例2-8中涂覆有防污涂层的储液管2进行表面硬度和剥离 强度的测试，为了便于比较，所有实施例的数据基于实施例2的数据进行归一化。
表1
  表面硬度 剥离强度
实施例2 100％ 100％
实施例3 102％ 98％
实施例4 101％ 101％
实施例5 105％ 106％
实施例6 103％ 104％
实施例7 98％ 97％
实施例8 102％ 101％
由上可知，由于实施例5中臂筒2的表面硬度和剥离强度的测试结果比其他涂覆有防污涂层的实施例都要高，故实施例5中给出的防污涂层的制备方法是最优选择。
本具体实施例仅仅是对本发明的解释，其并不是对本发明的限制，本领域技术人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改，但只要在本发明的权利要求范围内都受到专利法的保护。

Claims (10)

  1. 一种脊柱椎弓根穿刺针，包括材质为不锈钢的针体(1)，所述针体(1)为真空管状，所述针体(1)的一端为针尖(10)，其特征在于：所述针体(1)在远离所述针尖(10)的一端与储液管(2)内部的储液槽(20)连通，所述储液管(2)与所述针体(1)之间为可拆卸式连接，所述储液管(2)上还具有与所述储液槽(20)相互连通的第一支管(21)和第二支管(22)，所述第一支管(21)端部连接有气管(210)，所述气管(210)在远离所述第一支管(21)的一端连接有弹性按压球(211)，所述弹性按压球(211)上具有端头(2110)，所述端头(2110)内设置有第一气体单向阀(2111)，所述气管(210)在靠近所述弹性按压球(211)内设置有第二气体单向阀(2101)，所述第二支管(22)外部螺纹连接有堵盖(221)。
  2. 根据权利要求1所述的一种脊柱椎弓根穿刺针，其特征在于：所述针体(1)端部具有与所述针体(1)一体成型的环部(11)，所述环部(11)在远离所述针体(1)的一面开设有环槽(110)，所述储液管(2)上具有与所述储液管(2)一体成型的插环(23)，所述插环(23)插接在所述环槽(110)内，所述储液管(2)和所述环部(11)的外部共同螺纹连接有螺纹环套(111)。
  3. 根据权利要求1所述的一种脊柱椎弓根穿刺针，其特征在于：所述第一支管(21)在远离所述储液管(2)的一端具有与所述第一支管(21)一体成型的第一固定套(212)，所述气管(210)在远离所述弹性按压球(211)的一端固定有第二固定套(2102)，所述第一固定套(212)和所述第二固定套(2102)的正截面均为L形，所述第二固定套(2102)插接在所述第一固定套(212)内，所述第二固定套(2102)的外壁还固定有一层环形密封垫(21021)，所述第二固定套(2102)在插入到第一 固定套(212)内被卡接锁定。
  4. 根据权利要求3所述的一种脊柱椎弓根穿刺针，其特征在于：所述第二固定套(2102)内开设有两个滑槽(21022)，两个所述滑槽(21022)内均滑移连接有插块(21023)，所述插块(21023)与所述滑槽(21022)之间连接有弹簧(21024)，所述第一固定套(212)上开设有供所述插块(21023)插入的插槽(2121)。
  5. 根据权利要求2所述的一种脊柱椎弓根穿刺针，其特征在于：所述环部(11)和所述储液管(2)在相互靠近的一面共同开设有截面为圆形的环形凹槽(112)，所述环形凹槽(112)内设置有O形圈(1121)。
  6. 根据权利要求1所述的一种脊柱椎弓根穿刺针，其特征在于：所述第二支管(22)上具有与所述第二支管(22)一体成型的轴肩(222)，所述堵盖(221)在靠近所述轴肩(222)的端部固定有一层密封圈(2211)。
  7. 根据权利要求1所述的一种脊柱椎弓根穿刺针，其特征在于：所述储液管(2)在远离所述针体(1)的一端具有与所述储液管(2)一体成型的凸块(24)，所述凸块(24)内开设有螺纹孔(241)，所述螺纹孔(241)内螺纹连接有固定杆(242)，所述固定杆(242)在远离所述凸块(24)的一端固定有手柄(2421)。
  8. 根据权利要求1所述的一种脊柱椎弓根穿刺针，其特征在于：所述储液管(2)的表面还涂覆有一层防污涂层，所述防污涂层由如下方法制备：
    取以下以重量计各组分原料备用：甲基丙烯酸甲酯32-35份、聚 乙烯38-42份、聚丙烯25-27份、丙磺内酯8-12份、乙烯醇14-16份、丙烯酸6-10份、乙酸乙酯4-7份、乙醇18-20份；
    S1、制作防污涂层预制备液：将甲基丙烯酸甲酯、聚乙烯、聚丙烯、丙磺内酯、丙烯酸和乙酸乙酯混合均匀后加入到反应釜内，将反应釜内温度加热至136-138℃，然后保温30-40min，之后冷却到室温得到防污涂层预制备液；
    S2、制备防污涂层溶液：将S1得到的防污涂层预制备液内加入乙烯醇和乙醇，之后充分搅拌均匀，得到防污涂层溶液；
    S3、涂覆：利用喷枪将S2得到的防污涂层溶液均匀的喷涂到储液管(2)的外表面；
    S4、烘干：在通风阴凉处将储液管(2)烘干。
  9. 根据权利要求8所述的一种防污涂层的制备方法，其特征在于：所述S1中将甲基丙烯酸甲酯、聚乙烯、聚丙烯、丙磺内酯、丙烯酸和乙酸乙酯混合均匀后加入到反应釜内，将反应釜内温度加热至137℃，然后保温35min，之后冷却到室温得到防污涂层预制备液。
  10. 根据权利要求8所述的一种防污涂层的制备方法，其特征在于：所述S2中储液管(2)表面的防污涂层厚度为1mm。
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