CN105726099A - Sleeve type lumbar puncture needle - Google Patents
Sleeve type lumbar puncture needle Download PDFInfo
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- CN105726099A CN105726099A CN201610063970.5A CN201610063970A CN105726099A CN 105726099 A CN105726099 A CN 105726099A CN 201610063970 A CN201610063970 A CN 201610063970A CN 105726099 A CN105726099 A CN 105726099A
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- 238000009593 lumbar puncture Methods 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 183
- 230000007704 transition Effects 0.000 claims description 19
- 230000000630 rising effect Effects 0.000 claims description 17
- 230000001174 ascending effect Effects 0.000 claims description 13
- 239000003814 drug Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000009530 blood pressure measurement Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 1
- 210000001175 cerebrospinal fluid Anatomy 0.000 abstract description 30
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 238000007917 intracranial administration Methods 0.000 description 2
- 210000003041 ligament Anatomy 0.000 description 2
- 210000002330 subarachnoid space Anatomy 0.000 description 2
- 206010006126 Brain herniation Diseases 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- NNJVILVZKWQKPM-UHFFFAOYSA-N Lidocaine Chemical compound CCN(CC)CC(=O)NC1=C(C)C=CC=C1C NNJVILVZKWQKPM-UHFFFAOYSA-N 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000002583 angiography Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 210000001951 dura mater Anatomy 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 229960004194 lidocaine Drugs 0.000 description 1
- 238000002690 local anesthesia Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3401—Puncturing needles for the peridural or subarachnoid space or the plexus, e.g. for anaesthesia
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
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- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
本发明涉及医疗辅助器材设备，尤其涉及一种套式腰椎穿刺针。本发明的技术方案是：一种套式腰椎穿刺针，包括圆筒状的带有内腔的针头、带有通管腔的手柄、套针，所述针头设置有第一出液孔、第二出液孔，所述套针与针头的内腔和通孔腔相配套的圆筒状结构,套针上设置有第一进液孔和第二进液孔及第三进液孔。本发明的技术效果是：设置透明观察窗或透明手柄观察脑脊液是否流出，直观可视，取液时，对流量控制精确，方便操作，而第一出液孔和第二出液孔与第一进液孔和第二进液孔及第三进液孔相互位置的设置和配合，使出液方式和出液量都可根据现场病人或操作人员的要求灵活调。本产品使用方便，安全可靠、使用寿命长、调整精确、功能全。
The invention relates to medical auxiliary equipment, in particular to a sleeve type lumbar puncture needle. The technical solution of the present invention is: a sleeve type lumbar puncture needle, comprising a cylindrical needle head with an inner cavity, a handle with a through-tube cavity, and a trocar, the needle head is provided with a first liquid outlet hole, a second Two liquid outlet holes, the trocar is a cylindrical structure matching the inner cavity of the needle head and the through hole cavity, and the trocar is provided with a first liquid inlet hole, a second liquid inlet hole and a third liquid inlet hole. The technical effect of the present invention is: set transparent observation window or transparent handle to observe whether the cerebrospinal fluid flows out, it is intuitive and visible, when taking the liquid, the flow control is precise and easy to operate, and the first liquid outlet hole and the second liquid outlet hole are the same as the first liquid outlet hole. The arrangement and cooperation of the mutual positions of the liquid inlet hole, the second liquid inlet hole and the third liquid inlet hole enable the liquid outlet mode and the liquid outlet volume to be flexibly adjusted according to the requirements of the on-site patients or operators. This product is easy to use, safe and reliable, with long service life, precise adjustment and complete functions.
Description
技术领域technical field
本发明涉及涉及医疗辅助器材设备，尤其涉及一种套式腰椎穿刺针。背景技术The invention relates to medical auxiliary equipment, in particular to a sleeve type lumbar puncture needle. Background technique
腰椎穿刺是神经内科临床常用操作之一，主要用于脑脊液压力测定，抽取脑脊液，向蛛网膜下腔注入药物，脑脊液造影等。腰椎穿刺所用器具为腰椎穿刺针，目前常用腰椎穿刺针包括中空的针头、针座和针芯，针头尾接针座。穿刺前，先将针芯插入针头的针头空腔内，当针头连同针芯进入人体后，为了判断针头是否进入椎管，需将针芯从针头空腔内拔出，观察脑脊液是否从针头空腔内流出，如有脑脊液流出，说明腰椎穿刺成功，再接测压管进行脑脊液压力测定。通过针座抽取脑脊液或注入药物。上述腰椎穿刺针虽然结构简单，但也存在如下不足：为了判断针头是否插入椎管，需将针芯从针头空腔内拔出，观察脑脊液是否从针头空腔内流出，如果脑脊液未流出，重新将针芯插入针头的针头空腔内，再重新穿刺操作，因此，该穿刺针缺乏观察脑脊液是否流出的直观可视性，针芯不断地插拔操作，延长了穿刺操作时间，况且将针芯重新插入直径较小的针头空腔，操作上也相对麻烦；抽出针芯后连接测压管，易损失部分脑脊液，造成测压不准确；当颅内压较高时，一旦穿刺成功，将针芯从针头空腔拔出时，会造成脑脊液喷出，易诱发脑疝形成而危及生命；当需要采取脑脊液时，需要将针芯从针头空腔拔出，此时的脑脊液的流量很难精确控制。Lumbar puncture is one of the commonly used clinical operations in neurology. It is mainly used for measuring cerebrospinal fluid pressure, extracting cerebrospinal fluid, injecting drugs into the subarachnoid space, and performing cerebrospinal fluid angiography. The instrument used for lumbar puncture is a lumbar puncture needle, and the commonly used lumbar puncture needle includes a hollow needle head, a needle seat and a needle core, and the needle head is connected to the needle seat. Before puncture, first insert the needle core into the needle cavity of the needle head. When the needle head and the needle core enter the human body, in order to judge whether the needle head enters the spinal canal, the needle core needs to be pulled out from the needle cavity to observe whether the cerebrospinal fluid flows out of the needle cavity. If there is outflow of cerebrospinal fluid in the cavity, it means that the lumbar puncture is successful, and then the pressure measuring tube is connected to measure the pressure of cerebrospinal fluid. Cerebrospinal fluid is withdrawn or medication is injected through a needle hub. Although the above lumbar puncture needle has a simple structure, it also has the following disadvantages: In order to judge whether the needle is inserted into the spinal canal, the needle core needs to be pulled out from the cavity of the needle to observe whether the cerebrospinal fluid flows out from the cavity of the needle. Insert the needle core into the needle cavity of the needle, and then perform the puncture operation again. Therefore, the puncture needle lacks the intuitive visibility to observe whether the cerebrospinal fluid flows out, and the needle core is continuously inserted and pulled out, which prolongs the puncture operation time. It is relatively troublesome to reinsert the cavity of the needle with a smaller diameter; after pulling out the needle core and connecting the pressure measuring tube, it is easy to lose part of the cerebrospinal fluid, resulting in inaccurate pressure measurement; when the intracranial pressure is high, once the puncture is successful, the needle When the needle core is pulled out from the needle cavity, it will cause cerebrospinal fluid to spurt out, which can easily induce the formation of brain herniation and endanger life; when it is necessary to collect cerebrospinal fluid, the needle core needs to be pulled out from the needle cavity, and the flow rate of cerebrospinal fluid at this time is difficult to be accurate control.
发明内容Contents of the invention
为了解决以上技术问题，本发明提供一种可直接观察脑脊液是否流出，脑脊液的流量可精确控制，测压准确，操作简便，安全可靠的套式腰椎穿刺针。In order to solve the above technical problems, the present invention provides a sleeve-type lumbar puncture needle that can directly observe whether the cerebrospinal fluid flows out, the flow rate of the cerebrospinal fluid can be precisely controlled, the pressure measurement is accurate, the operation is simple, safe and reliable.
本发明的技术方案是：Technical scheme of the present invention is:
一种套式腰椎穿刺针，包括圆筒状的带有内腔的针头1、带有通管腔201的手柄2、套针3，所述针头1一端带有尖锐的头部101，另一端开口，所述开口与所述针头1内部设置的中空的套筒102相连通，所述针头1在靠近头部的一端设置有第一出液孔103、第二出液孔104，其中第一出液孔103和第二出液孔104沿针头1的在同一横截面上对称排列且大小相同，第一出液孔103和第二出液孔104的圆心角均为30°，其沿针头1轴线方向的宽度为4mm，所述手柄2为透明塑料材料制成，所述通管腔201包括依次相连通的连接腔202、过渡腔203、限制腔204、功能腔205、尾腔206、后座腔207，所述连接腔202靠近过渡腔203的位置设置有沿通管腔201轴线对称的两个向内的凹陷形成的尺寸相同的观察窗208，所述靠近开口一端的针头1插入连接腔202并相互固接，所述针头1插入连接腔202的距离小于观察窗208背离过渡腔203的一端到连接腔202背离过滤腔203一端的距离，所述针头1的末端与过滤腔203之间形成缓冲腔217，所述连接腔202的内径与针头1的外径相配合，所述过渡腔203的内径与针头1的内径相同，所述限制腔204包括依次相连接的升部209、平部210、降部211，所述升部209、平部210、降部211的轴线均与连接腔202轴线相一致，其中升部209为一横放的高为10mm圆台状空腔结构，其小台面一侧与连接腔202连通，大台面一侧与所述平部210相连接，小台面与侧面之间的夹角为70°，所述平部210的内径与所述升部209大台面内径一致，沿轴线方向的高度为5mm，所述降部211为一横放的高为10mm圆台状空腔结构，其大台面一侧与平部210连通，其小台面一侧与所述功能腔205相连接，其小台面与侧面之间的夹角为70°，所述升部209外侧的手柄2与平部210外侧的手柄2之间通过螺纹相连接，所述功能腔205外侧的手柄2外表面设置有沿通管腔201的轴线对称的内部均设置有与功能腔205相连通的通孔的多功能突台212和取液突台213，所述功能腔205外侧的手柄2背离降部211的一端通过螺纹与尾腔206外侧的手柄2相连接，所述尾腔206外侧的手柄2与后座腔207外部的手柄2固接，所述后座腔207外侧的手柄2的外表面上设置有沿周向方向的止液槽214、放液槽215和沿轴向方向的滑动槽，所述放液槽215靠近尾腔206一侧，放液槽215与止液槽214之间的最短距离为4mm，放液槽215与止液槽214沿轴向方向的宽度为1mm，所述放液槽215与止液槽214的圆心角均为90°，所述放液槽215与止液槽214沿周向方向上沿滑动槽对称，所述滑动槽和第一出液孔103的沿轴向方向的投影在针头1横截面的同一条半径上重合，所述滑动槽一端与放液槽215相通接，另一端与止液槽214相通接，所述头部101内部、套筒102远离开口一端设置有半球状中空的寻位腔105和定位腔106，其中寻位腔105半球状的底部与套筒102相连通，定位腔106底部与寻位腔105半球状的顶部相连通，所述定位腔106的底部为圆柱形的腔体、顶部为一个半球状的腔体，其中寻位腔105的内径与套筒102的内径相同，定位腔106的底部的腔体的内径为套筒102内径的1/3，所述套针3与针头1的内腔和通孔腔201相配套的圆筒状结构，所述套针3包括中空的通液腔315、与定位腔106配套的定位头307，与寻位腔105配套的寻位头305、与第一出液孔103和第二出液孔104配套的第一进液孔303和第二进液孔304、与升部209和降部211配套的升面309和降面311，所述升面309和降面311通过过渡弧312相连接，所述降面311靠近功能腔205一侧设置有与功能腔205、尾腔206、后座腔207配套的尾部316，所述尾部316在与所述多功能突台212和取液突台213内通孔配套的多功能孔317和取液孔318，所述多功能孔317与第一进液孔303在轴向方向上相一致，所述尾部316在靠近后座腔307的末端设置有后座313，所述第一进液孔303和第二进液孔304同一轴向位置上设置有第三进液孔314，所述第三进液孔314与第一进液孔303之间沿后座腔207到针头1方向观察逆时针方向的夹角为90°，所述后座313为封闭通液腔315末端的内部凹陷的帽状结构，所述后座313的凹陷部分朝向针头1方向，其内壁上设置有滑动卡片319，所述滑动卡片319与所述放液槽215、止液槽214、滑动槽相配套，沿后座腔207到针头1方向观察所述滑动卡片319与第一进液孔303之间在逆时针方向的夹角为45°。A sleeve-type lumbar puncture needle, comprising a cylindrical needle 1 with an inner cavity, a handle 2 with a through-tube cavity 201, and a trocar 3. One end of the needle 1 has a sharp head 101, and the other end Opening, the opening communicates with the hollow sleeve 102 provided inside the needle head 1, the needle head 1 is provided with a first liquid outlet hole 103 and a second liquid outlet hole 104 at one end close to the head, wherein the first liquid outlet hole The liquid outlet hole 103 and the second liquid outlet hole 104 are symmetrically arranged on the same cross-section along the needle head 1 and have the same size. The central angles of the first liquid outlet hole 103 and the second liquid outlet hole 104 are both 30°, which 1. The width in the axial direction is 4 mm. The handle 2 is made of transparent plastic material. The through-pipe cavity 201 includes a connecting cavity 202, a transition cavity 203, a limiting cavity 204, a functional cavity 205, a tail cavity 206, Rear cavity 207, the connection cavity 202 near the transition cavity 203 is provided with an observation window 208 of the same size formed by two inward recesses symmetrical along the axis of the tube cavity 201, and the needle 1 near the opening end is inserted into The connection cavity 202 is fixed to each other, the distance of the needle 1 inserted into the connection cavity 202 is less than the distance from the end of the observation window 208 away from the transition cavity 203 to the end of the connection cavity 202 away from the filter cavity 203, the end of the needle 1 is connected to the filter cavity 203 A buffer cavity 217 is formed between them, the inner diameter of the connecting cavity 202 matches the outer diameter of the needle 1, the inner diameter of the transition cavity 203 is the same as the inner diameter of the needle 1, and the limiting cavity 204 includes successively connected rising parts 209 , flat portion 210, descending portion 211, the axes of the ascending portion 209, the flat portion 210, and the descending portion 211 are all consistent with the axis of the connecting cavity 202, wherein the ascending portion 209 is a horizontally placed truncated circular cavity structure with a height of 10mm , one side of the small table top communicates with the connection cavity 202, one side of the large table top connects with the flat portion 210, the angle between the small table top and the side is 70°, the inner diameter of the flat portion 210 and the rising portion The inner diameter of the large table top of 209 is the same, and the height along the axial direction is 5 mm. The descending part 211 is a horizontally placed truncated circular cavity structure with a height of 10 mm. One side of the large table top communicates with the flat part 210, and one side of the small table top connects The functional cavity 205 is connected, and the angle between its small table top and the side is 70°. The handle 2 on the outside of the rising part 209 is connected with the handle 2 on the outside of the flat part 210 through threads. The functional cavity The outer surface of the handle 2 on the outside of the 205 is provided with a multi-functional protrusion 212 and a liquid-taking protrusion 213 that are symmetrically arranged along the axis of the lumen 201 and are provided with a through hole communicating with the functional chamber 205. One end of the handle 2 away from the descending portion 211 is connected to the handle 2 on the outside of the tail cavity 206 through threads, the handle 2 on the outside of the tail cavity 206 is fixedly connected to the handle 2 on the outside of the rear seat cavity 207, and the outside of the rear seat cavity 207 The outer surface of the handle 2 is provided with a liquid stop groove 214 along the circumferential direction, a liquid discharge groove 215 and a sliding groove along the axial direction, and the liquid discharge groove 215 is close to the side of the tail cavity 206, The shortest distance between the liquid discharge groove 215 and the liquid stop groove 214 is 4 mm, the width of the liquid discharge groove 215 and the liquid stop groove 214 along the axial direction is 1 mm, and the central angles of the liquid discharge groove 215 and the liquid stop groove 214 are equal to is 90°, the liquid discharge groove 215 and the liquid stop groove 214 are symmetrical along the sliding groove along the circumferential direction, and the projection along the axial direction of the sliding groove and the first liquid outlet hole 103 is on the same plane as the cross section of the needle head 1. One radius overlaps, one end of the sliding groove is connected to the liquid discharge groove 215, and the other end is connected to the liquid stop groove 214, and the inside of the head 101 and the end of the sleeve 102 away from the opening are provided with a hemispherical hollow positioning cavity 105 and positioning cavity 106, wherein the hemispherical bottom of the positioning cavity 105 communicates with the sleeve 102, the bottom of the positioning cavity 106 communicates with the hemispherical top of the positioning cavity 105, and the bottom of the positioning cavity 106 is a cylindrical cavity The body and the top are a hemispherical cavity, wherein the inner diameter of the positioning cavity 105 is the same as the inner diameter of the sleeve 102, and the inner diameter of the cavity at the bottom of the positioning cavity 106 is 1/3 of the inner diameter of the sleeve 102, and the trocar 3 A cylindrical structure matching the inner cavity of the needle head 1 and the through-hole cavity 201. The trocar 3 includes a hollow liquid-through cavity 315, a positioning head 307 matching with the positioning cavity 106, and a matching positioning head 307 with the positioning cavity 105. The positioning head 305, the first liquid inlet hole 303 and the second liquid inlet hole 304 matched with the first liquid outlet hole 103 and the second liquid outlet hole 104, the rising surface 309 and the falling surface matched with the rising part 209 and the falling part 211 surface 311, the rising surface 309 and the falling surface 311 are connected by a transition arc 312, and the side of the falling surface 311 close to the functional cavity 205 is provided with a tail part 316 matching the functional cavity 205, the tail cavity 206, and the rear seat cavity 207, The tail part 316 is in the multifunctional hole 317 and the liquid intake hole 318 matched with the through holes in the multifunctional protrusion 212 and the liquid intake protrusion 213, and the multifunctional hole 317 is axially aligned with the first liquid inlet hole 303. In the same direction, the tail part 316 is provided with a rear seat 313 near the end of the rear seat cavity 307, and the first liquid inlet hole 303 and the second liquid inlet hole 304 are provided with a third liquid inlet hole at the same axial position 314, the angle between the third liquid inlet hole 314 and the first liquid inlet hole 303 is 90° when viewed counterclockwise from the rear seat chamber 207 to the needle head 1, and the rear seat 313 is a closed liquid passage chamber 315 The inner concave cap-shaped structure of the end, the concave part of the back seat 313 faces the direction of the needle head 1, and a sliding card 319 is arranged on its inner wall, and the sliding card 319 is connected with the liquid discharge groove 215, the liquid stop groove 214, the sliding The grooves are matched, and the angle between the sliding card 319 and the first liquid inlet hole 303 in the counterclockwise direction is 45° when viewed along the direction from the rear seat chamber 207 to the needle head 1 .
作为本技术方案的一种优化方案，可以是所述多功能突台212外壁上设置有药液注射装置或压力测量装置。As an optimized solution of this technical solution, a liquid medicine injection device or a pressure measurement device may be provided on the outer wall of the multi-functional protrusion 212 .
再一步优化为，所述药液注射装置通过橡胶密封装置与多功能突台212相连接。A further optimization is that the liquid medicine injection device is connected to the multi-functional protrusion 212 through a rubber sealing device.
还可以优化为，所述压力测量装置设置有内螺纹通过设置在多功能突台212外表面的外螺纹相连接。It can also be optimized that the pressure measuring device is provided with an internal thread connected through an external thread provided on the outer surface of the multifunctional boss 212 .
作为本技术方案的另一种优化方案，可以是所述取液突台213上设置有取液装置。As another optimized solution of this technical solution, a liquid-taking device may be arranged on the liquid-taking protrusion 213 .
本发明的技术效果是：Technical effect of the present invention is:
设置透明观察窗或透明手柄观察脑脊液是否流出，直观可视，通过滑动卡片319与所述放液槽215、止液槽214、滑动槽的控制可灵活方便地根据脑脊液的压力控制出液大小，防止过多脑脊液流出，取液时，对流量控制精确，方便操作，升部、平部、降部与升面、降面的设置和配合可以更安全地控制本产品在穿刺过程中对脑脊液的控制，而第一出液孔103和第二出液孔104与第一进液孔303和第二进液孔304及第三进液孔314相互位置的设置和滑动卡片319在放液槽215、止液槽214的滑动角度的配合，使出液方式和出液量都可根据现场病人或操作人员的要求灵活调。本产品使用方便，安全可靠、使用寿命长、调整精确、功能全。Set a transparent observation window or a transparent handle to observe whether the cerebrospinal fluid flows out, which is intuitive and visible. Through the control of the sliding card 319, the liquid discharge groove 215, the liquid stop groove 214, and the sliding groove, the size of the liquid can be flexibly and conveniently controlled according to the pressure of the cerebrospinal fluid. To prevent excessive cerebrospinal fluid from flowing out, when taking fluid, the flow control is precise and easy to operate. The setting and cooperation of ascending part, flat part, descending part and ascending and descending surfaces can more safely control the impact of this product on cerebrospinal fluid during puncture. control, and the first liquid outlet hole 103 and the second liquid outlet hole 104 and the first liquid inlet hole 303 and the second liquid inlet hole 304 and the third liquid inlet hole 314 mutual position setting and sliding card 319 in the liquid discharge groove 215 , The coordination of the sliding angle of the liquid stop groove 214 enables the liquid discharge method and liquid discharge volume to be flexibly adjusted according to the requirements of the on-site patients or operators. This product is easy to use, safe and reliable, with long service life, precise adjustment and complete functions.
附图说明Description of drawings
图1为本发明整体示意图；Fig. 1 is the overall schematic diagram of the present invention;
图2为本发明整体剖面示意图；Fig. 2 is the overall sectional schematic diagram of the present invention;
图3为本发明不包含套针的剖面示意图；Fig. 3 is a schematic cross-sectional view of the present invention that does not include a trocar;
图4为本发明套针整体示意图；Fig. 4 is the overall schematic diagram of the trocar of the present invention;
图5为本发明套针剖面示意图。Fig. 5 is a schematic cross-sectional view of the trocar of the present invention.
其中：in:
1、针头；101、头部；102、套筒；103、第一出液孔；104、第二出液孔；105、寻位腔；106、定位腔；1. Needle; 101. Head; 102. Sleeve; 103. First liquid outlet; 104. Second liquid outlet; 105. Positioning cavity; 106. Positioning cavity;
2、手柄；201、通管腔；202、连接腔；203、过渡腔；204、限制腔；205、功能腔；206、尾腔；207、后座腔；208、观察窗；209、升部；210、平部；211、降部；212、多功能突台；213、取液突台；214、止液槽；215、放液槽；217、缓冲腔；2, handle; 201, through tube cavity; 202, connection cavity; 203, transition cavity; 204, restriction cavity; 205, function cavity; 206, tail cavity; 207, rear cavity; 208, observation window; 209, ascending part ; 210, flat part; 211, descending part; 212, multi-functional raised platform; 213, liquid taking raised platform; 214, stop liquid tank; 215, liquid discharge tank;
3、套针；303、第一进液孔；304、第二进液孔；305、寻位头；307、定位头；309、升面；311、降面；312、过渡弧；313、后座；314、第三进液孔；315、通液腔；316、尾部；317、多功能孔；318、取液孔；319、滑动卡片。3, trocar; 303, first liquid inlet hole; 304, second liquid inlet hole; 305, positioning head; 307, positioning head; 309, ascending surface; 311, descending surface; 312, transition arc; 313, rear Seat; 314, the third liquid inlet hole; 315, liquid-through chamber; 316, tail; 317, multifunctional hole; 318, liquid-taking hole; 319, sliding card.
具体实施方式detailed description
下面结合图1～图5所示，根据实施例进行具体说明：Below in conjunction with Fig. 1 ~ Fig. 5 shown, carry on specific description according to the embodiment:
实施例1：Example 1:
一种套式腰椎穿刺针，包括圆筒状的带有内腔的针头1、带有通管腔201的手柄2、套针3，所述针头1一端带有尖锐的头部101，另一端开口，所述开口与所述针头1内部设置的中空的套筒102相连通，所述针头1在靠近头部的一端设置有第一出液孔103、第二出液孔104，其中第一出液孔103和第二出液孔104沿针头1的在同一横截面上对称排列且大小相同，第一出液孔103和第二出液孔104的圆心角均为30°，其沿针头1轴线方向的宽度为4mm，所述手柄2为透明塑料材料制成，所述通管腔201包括依次相连通的连接腔202、过渡腔203、限制腔204、功能腔205、尾腔206、后座腔207，所述连接腔202靠近过渡腔203的位置设置有沿通管腔201轴线对称的两个向内的凹陷形成的尺寸相同的观察窗208，所述靠近开口一端的针头1插入连接腔202并相互固接，所述针头1插入连接腔202的距离小于观察窗208背离过渡腔203的一端到连接腔202背离过滤腔203一端的距离，所述针头1的末端与过滤腔203之间形成缓冲腔217，所述连接腔202的内径与针头1的外径相配合，所述过渡腔203的内径与针头1的内径相同，所述限制腔204包括依次相连接的升部209、平部210、降部211，所述升部209、平部210、降部211的轴线均与连接腔202轴线相一致，其中升部209为一横放的高为10mm圆台状空腔结构，其小台面一侧与连接腔202连通，大台面一侧与所述平部210相连接，小台面与侧面之间的夹角为70°，所述平部210的内径与所述升部209大台面内径一致，沿轴线方向的高度为5mm，所述降部211为一横放的高为10mm圆台状空腔结构，其大台面一侧与平部210连通，其小台面一侧与所述功能腔205相连接，其小台面与侧面之间的夹角为70°，所述升部209外侧的手柄2与平部210外侧的手柄2之间通过螺纹相连接，所述功能腔205外侧的手柄2外表面设置有沿通管腔201的轴线对称的内部均设置有与功能腔205相连通的通孔的多功能突台212和取液突台213，所述功能腔205外侧的手柄2背离降部211的一端通过螺纹与尾腔206外侧的手柄2相连接，所述尾腔206外侧的手柄2与后座腔207外部的手柄2固接，所述后座腔207外侧的手柄2的外表面上设置有沿周向方向的止液槽214、放液槽215和沿轴向方向的滑动槽，所述放液槽215靠近尾腔206一侧，放液槽215与止液槽214之间的最短距离为4mm，放液槽215与止液槽214沿轴向方向的宽度为1mm，所述放液槽215与止液槽214的圆心角均为90°，所述放液槽215与止液槽214沿周向方向上沿滑动槽对称，所述滑动槽和第一出液孔103的沿轴向方向的投影在针头1横截面的同一条半径上重合，所述滑动槽一端与放液槽215相通接，另一端与止液槽214相通接，所述头部101内部、套筒102远离开口一端设置有半球状中空的寻位腔105和定位腔106，其中寻位腔105半球状的底部与套筒102相连通，定位腔106底部与寻位腔105半球状的顶部相连通，所述定位腔106的底部为圆柱形的腔体、顶部为一个半球状的腔体，其中寻位腔105的内径与套筒102的内径相同，定位腔106的底部的腔体的内径为套筒102内径的1/3，所述套针3与针头1的内腔和通孔腔201相配套的圆筒状结构，所述套针3包括中空的通液腔315、与定位腔106配套的定位头307，与寻位腔105配套的寻位头305、与第一出液孔103和第二出液孔104配套的第一进液孔303和第二进液孔304、与升部209和降部211配套的升面309和降面311，所述升面309和降面311通过过渡弧312相连接，所述降面311靠近功能腔205一侧设置有与功能腔205、尾腔206、后座腔207配套的尾部316，所述尾部316在与所述多功能突台212和取液突台213内通孔配套的多功能孔317和取液孔318，所述多功能孔317与第一进液孔303在轴向方向上相一致，所述尾部316在靠近后座腔307的末端设置有后座313，所述第一进液孔303和第二进液孔304同一轴向位置上设置有第三进液孔314，所述第三进液孔314与第一进液孔303之间沿后座腔207到针头1方向观察逆时针方向的夹角为90°，所述后座313为封闭通液腔315末端的内部凹陷的帽状结构，所述后座313的凹陷部分朝向针头1方向，其内壁上设置有滑动卡片319，所述滑动卡片319与所述进液槽215、止液槽214、滑动槽相配套，沿后座腔207到针头1方向观察所述滑动卡片319与第一进液孔303之间在逆时针方向的夹角为45°。A sleeve-type lumbar puncture needle, comprising a cylindrical needle 1 with an inner cavity, a handle 2 with a through-tube cavity 201, and a trocar 3. One end of the needle 1 has a sharp head 101, and the other end Opening, the opening communicates with the hollow sleeve 102 provided inside the needle head 1, the needle head 1 is provided with a first liquid outlet hole 103 and a second liquid outlet hole 104 at one end close to the head, wherein the first liquid outlet hole The liquid outlet hole 103 and the second liquid outlet hole 104 are symmetrically arranged on the same cross-section along the needle head 1 and have the same size. The central angles of the first liquid outlet hole 103 and the second liquid outlet hole 104 are both 30°, which 1. The width in the axial direction is 4 mm. The handle 2 is made of transparent plastic material. The through-pipe cavity 201 includes a connecting cavity 202, a transition cavity 203, a limiting cavity 204, a functional cavity 205, a tail cavity 206, Rear cavity 207, the connection cavity 202 near the transition cavity 203 is provided with an observation window 208 of the same size formed by two inward recesses symmetrical along the axis of the tube cavity 201, and the needle 1 near the opening end is inserted into The connection cavity 202 is fixed to each other, the distance of the needle 1 inserted into the connection cavity 202 is less than the distance from the end of the observation window 208 away from the transition cavity 203 to the end of the connection cavity 202 away from the filter cavity 203, the end of the needle 1 is connected to the filter cavity 203 A buffer cavity 217 is formed between them, the inner diameter of the connecting cavity 202 matches the outer diameter of the needle 1, the inner diameter of the transition cavity 203 is the same as the inner diameter of the needle 1, and the limiting cavity 204 includes successively connected rising parts 209 , flat portion 210, descending portion 211, the axes of the ascending portion 209, the flat portion 210, and the descending portion 211 are all consistent with the axis of the connecting cavity 202, wherein the ascending portion 209 is a horizontally placed truncated circular cavity structure with a height of 10mm , one side of the small table top communicates with the connection cavity 202, one side of the large table top connects with the flat portion 210, the angle between the small table top and the side is 70°, the inner diameter of the flat portion 210 and the rising portion The inner diameter of the large table top of 209 is the same, and the height along the axial direction is 5 mm. The descending part 211 is a horizontally placed truncated circular cavity structure with a height of 10 mm. One side of the large table top communicates with the flat part 210, and one side of the small table top connects The functional cavity 205 is connected, and the angle between its small table top and the side is 70°. The handle 2 on the outside of the rising part 209 is connected with the handle 2 on the outside of the flat part 210 through threads. The functional cavity The outer surface of the handle 2 on the outside of the 205 is provided with a multi-functional protrusion 212 and a liquid-taking protrusion 213 that are symmetrically arranged along the axis of the lumen 201 and are provided with a through hole communicating with the functional chamber 205. One end of the handle 2 away from the descending portion 211 is connected to the handle 2 on the outside of the tail cavity 206 through threads, the handle 2 on the outside of the tail cavity 206 is fixedly connected to the handle 2 on the outside of the rear seat cavity 207, and the outside of the rear seat cavity 207 The outer surface of the handle 2 is provided with a liquid stop groove 214 along the circumferential direction, a liquid discharge groove 215 and a sliding groove along the axial direction, and the liquid discharge groove 215 is close to the side of the tail cavity 206, The shortest distance between the liquid discharge groove 215 and the liquid stop groove 214 is 4 mm, the width of the liquid discharge groove 215 and the liquid stop groove 214 along the axial direction is 1 mm, and the central angles of the liquid discharge groove 215 and the liquid stop groove 214 are equal to is 90°, the liquid discharge groove 215 and the liquid stop groove 214 are symmetrical along the sliding groove along the circumferential direction, and the projection along the axial direction of the sliding groove and the first liquid outlet hole 103 is on the same plane as the cross section of the needle head 1. One radius overlaps, one end of the sliding groove is connected to the liquid discharge groove 215, and the other end is connected to the liquid stop groove 214, and the inside of the head 101 and the end of the sleeve 102 away from the opening are provided with a hemispherical hollow positioning chamber 105 and positioning cavity 106, wherein the hemispherical bottom of the positioning cavity 105 communicates with the sleeve 102, the bottom of the positioning cavity 106 communicates with the hemispherical top of the positioning cavity 105, and the bottom of the positioning cavity 106 is a cylindrical cavity The body and the top are a hemispherical cavity, wherein the inner diameter of the positioning cavity 105 is the same as the inner diameter of the sleeve 102, and the inner diameter of the cavity at the bottom of the positioning cavity 106 is 1/3 of the inner diameter of the sleeve 102, and the trocar 3 A cylindrical structure matching the inner cavity of the needle head 1 and the through-hole cavity 201. The trocar 3 includes a hollow liquid-through cavity 315, a positioning head 307 matching with the positioning cavity 106, and a matching positioning head 307 with the positioning cavity 105. The positioning head 305, the first liquid inlet hole 303 and the second liquid inlet hole 304 matched with the first liquid outlet hole 103 and the second liquid outlet hole 104, the rising surface 309 and the falling surface matched with the rising part 209 and the falling part 211 surface 311, the rising surface 309 and the falling surface 311 are connected by a transition arc 312, and the side of the falling surface 311 close to the functional cavity 205 is provided with a tail part 316 matching the functional cavity 205, the tail cavity 206, and the rear seat cavity 207, The tail part 316 is in the multifunctional hole 317 and the liquid intake hole 318 matched with the through holes in the multifunctional protrusion 212 and the liquid intake protrusion 213, and the multifunctional hole 317 is axially aligned with the first liquid inlet hole 303. In the same direction, the tail part 316 is provided with a rear seat 313 near the end of the rear seat cavity 307, and the first liquid inlet hole 303 and the second liquid inlet hole 304 are provided with a third liquid inlet hole at the same axial position 314, the angle between the third liquid inlet hole 314 and the first liquid inlet hole 303 is 90° when viewed counterclockwise from the rear seat chamber 207 to the needle head 1, and the rear seat 313 is a closed liquid passage chamber 315 The inner concave cap-shaped structure of the end, the concave part of the back seat 313 faces the direction of the needle head 1, and a sliding card 319 is arranged on the inner wall thereof, and the sliding card 319 is connected with the liquid inlet groove 215, the liquid stop groove 214, the sliding The grooves are matched, and the angle between the sliding card 319 and the first liquid inlet hole 303 in the counterclockwise direction is 45° when viewed along the direction from the rear seat chamber 207 to the needle head 1 .
所述多功能突台212外壁上设置有压力测量装置，所述压力测量装置设置有内螺纹通过设置在多功能突台212外表面的外螺纹相连接。A pressure measuring device is provided on the outer wall of the multi-functional protrusion 212 , and the pressure measuring device is provided with an internal thread connected through an external thread provided on the outer surface of the multi-functional protrusion 212 .
本发明实施例1使用方法：Embodiment 1 of the present invention using method:
1.嘱患者侧卧于硬板床上，背部与床面垂直，头向前，胸部屈曲，两手抱膝紧贴腹部，使躯干呈弓形，便于进针；1. Ask the patient to lie on his side on a hard board, with his back perpendicular to the bed, his head forward, his chest bent, and his hands hugging his knees close to his abdomen so that his trunk is arched for easy needle insertion;
2.确定穿刺点，一般取第3～4腰椎棘突间隙，有时也可在上一或下一腰椎间隙进；2. Determine the puncture point, generally take the spinous process space of the 3rd to 4th lumbar vertebrae, and sometimes enter the space between the previous or next lumbar vertebrae;
3.常规消毒皮肤后，戴无菌手套与盖洞贴，用2％利多卡因自皮肤到椎间韧带作局部麻醉；3. After routine disinfection of the skin, wear sterile gloves and cover the hole, and use 2% lidocaine for local anesthesia from the skin to the intervertebral ligament;
4.使用前，将本发明滑动卡片319插入止液槽214，持本发明腰椎穿刺针，针头以垂直背部的方向缓慢刺入，成人进针深度为4～6厘米，儿童则为2～4厘米。当针头穿过韧带与硬脑膜进入蛛网膜下腔时，可感到阻力突然消失有落空感。此时向外拉动后座313使滑动卡片319进入放液槽215，然后将后座313慢慢旋转，在升部209、平部210、降部211和309、升面309、降面311、过渡弧312以及放液槽215的配合和限制下，使第三进液孔314与第一出液孔103对齐；通过观察窗208观察脑脊液是否流出；4. Before use, insert the sliding card 319 of the present invention into the stopper groove 214, hold the lumbar puncture needle of the present invention, and insert the needle slowly in the direction perpendicular to the back. cm. When the needle passes through the ligament and dura mater and enters the subarachnoid space, the resistance suddenly disappears and there is a sense of loss. At this time, the rear seat 313 is pulled outwards to make the sliding card 319 enter the liquid discharge tank 215, and then the rear seat 313 is slowly rotated, and the rear seat 313 is rotated slowly, at the rising portion 209, the flat portion 210, the descending portions 211 and 309, the ascending surface 309, the descending surface 311, Under the cooperation and restriction of the transition arc 312 and the liquid discharge groove 215, the third liquid inlet hole 314 is aligned with the first liquid outlet hole 103; through the observation window 208, observe whether the cerebrospinal fluid flows out;
5.放脑脊液前，在多功能突台212外接上测压管，然后使脑脊液进入测压管，直至测压管中的脑脊液高度稳定后，读取脑脊液压力高度，正常人侧卧位脑脊液的压力为0.69～1.76千帕，即70到180毫米水柱，也可按需要将后座313向另一方向旋转，使第一进液孔303和第二进液孔304分别与第一出液孔103和第二出液孔104对齐，加大出液量；5. Before releasing the cerebrospinal fluid, connect the pressure measuring tube to the multi-functional protrusion 212, and then let the cerebrospinal fluid enter the pressure measuring tube until the height of the cerebrospinal fluid in the pressure measuring tube is stable, and then read the pressure height of the cerebrospinal fluid. Pressure is 0.69～1.76 kilopascals, namely 70 to 180 millimeters of water column, also can rotate rear seat 313 to another direction as required, make the first liquid inlet hole 303 and the second liquid inlet hole 304 and the first liquid outlet hole respectively 103 is aligned with the second liquid outlet hole 104 to increase the liquid output;
6.当需要收集脑脊液时，回旋后座313，并推动，使滑动卡片319进入止液槽214后，操作测压管，使在其中的脑脊液流到事先准备好的容器中，收集脑脊液2～5m1即可，如脑脊液收集不足，也可重复以上步骤，再次收集；6. When it is necessary to collect the cerebrospinal fluid, rotate the back seat 313 and push it so that the sliding card 319 enters the liquid stop groove 214, and then operate the pressure measuring tube to make the cerebrospinal fluid in it flow into the container prepared in advance, and collect the cerebrospinal fluid 2～ 5m1 is enough, if the collection of cerebrospinal fluid is insufficient, you can repeat the above steps and collect again;
7.术毕，将本发明产品拔出，覆盖消毒纱布，用胶布固定；7. After the operation, the product of the present invention is pulled out, covered with sterile gauze, and fixed with adhesive tape;
8.术后患者去枕俯卧4～6小时，以免引起术后低颅压头痛。8. After the operation, the patient should lie on the pillow for 4-6 hours, so as not to cause postoperative low intracranial pressure and headache.
实施例2：Example 2:
除所述多功能突台212外壁上设置有药液注射装置所，药液注射装置通过橡胶密封装置与多功能突台212相连接外，其余同实施例1。Except that the outer wall of the multifunctional protrusion 212 is provided with a liquid medicine injection device, and the liquid medicine injection device is connected with the multifunctional protrusion 212 through a rubber sealing device, the rest is the same as that of the first embodiment.
使用方法需要使用注射器注入药物时，需要事先将后座313推入止液槽214，将注射器圆筒前端的乳头插入多功能突台212，通过橡胶密封条进行密封，然后拉出后座313使其进入放液槽215，旋转后座213，根据需要打开第三进液孔314与第一出液孔103之间或是第一进液孔303和第二进液孔304分别与第一出液孔103和第二出液孔104之间的通道，利用注射器注入药物，注射完药物，利用后座313关闭通道，拿掉注射器即可。Method of use When it is necessary to use a syringe to inject medicine, it is necessary to push the back seat 313 into the liquid stop groove 214 in advance, insert the nipple at the front end of the syringe cylinder into the multifunctional protrusion 212, seal it with a rubber sealing strip, and then pull out the back seat 313 to use it. It enters the liquid discharge tank 215, rotates the rear seat 213, and opens between the third liquid inlet 314 and the first liquid outlet 103 or between the first liquid inlet 303 and the second liquid inlet 304 and the first liquid outlet respectively as required. The channel between the hole 103 and the second liquid outlet hole 104 is injected with a syringe. After injecting the drug, the channel is closed with the back seat 313 and the syringe is removed.
实施例3：Example 3:
除所述取液突台213上设置有取液装置外其余同实施例2。The rest is the same as that of Embodiment 2 except that the liquid-taking platform 213 is provided with a liquid-taking device.
其操作过程是在压力测量装置工作的同时进行取液操作，利用取液突台213上设置的取液装置取出所需要的脑脊液。取液过程是，拉出后座313使其进入放液槽215，旋转后座213，根据需要打开第三进液孔314与第一出液孔103之间或是第一进液孔303和第二进液孔304分别与第一出液孔103和第二出液孔104之间的通道，打开取液装置，取液完毕后，利用后座313关闭通道。The operation process is to take liquid while the pressure measuring device is working, and take out the required cerebrospinal fluid by using the liquid taking device provided on the liquid taking platform 213 . The process of taking liquid is to pull out the back seat 313 to make it enter the liquid discharge tank 215, rotate the back seat 213, and open between the third liquid inlet hole 314 and the first liquid outlet hole 103 or between the first liquid inlet hole 303 and the first liquid outlet hole 103 as required. The passage between the second liquid inlet hole 304 and the first liquid outlet hole 103 and the second liquid outlet hole 104 respectively, open the liquid taking device, after taking the liquid, use the back seat 313 to close the passage.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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|---|---|---|---|---|
| US5738650A (en) * | 1993-01-29 | 1998-04-14 | Becton, Dickinson And Company | Subarachnoid needle and method for administering therapeutic agents to the subarachnoid space |
| US20090254061A1 (en) * | 2008-04-02 | 2009-10-08 | The Cleveland Clinic Foundation | Method and apparatus for removing cerebrospinal fluid |
| CN103006295A (en) * | 2012-12-11 | 2013-04-03 | 王萍 | Lumbar puncture needle |
| CN203354576U (en) * | 2013-07-25 | 2013-12-25 | 中国人民解放军第三军医大学第二附属医院 | Bone tissue puncture biopsy needle assembly |
| CN104970836A (en) * | 2015-07-30 | 2015-10-14 | 陈晓阳 | Suction inner-cutting type tissue biopsy puncture needle |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5738650A (en) * | 1993-01-29 | 1998-04-14 | Becton, Dickinson And Company | Subarachnoid needle and method for administering therapeutic agents to the subarachnoid space |
| US20090254061A1 (en) * | 2008-04-02 | 2009-10-08 | The Cleveland Clinic Foundation | Method and apparatus for removing cerebrospinal fluid |
| CN103006295A (en) * | 2012-12-11 | 2013-04-03 | 王萍 | Lumbar puncture needle |
| CN203354576U (en) * | 2013-07-25 | 2013-12-25 | 中国人民解放军第三军医大学第二附属医院 | Bone tissue puncture biopsy needle assembly |
| CN104970836A (en) * | 2015-07-30 | 2015-10-14 | 陈晓阳 | Suction inner-cutting type tissue biopsy puncture needle |
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| CN105726099B (en) | 2018-03-30 |
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