CN204744348U - Lumbar puncture needle - Google Patents
Lumbar puncture needle Download PDFInfo
- Publication number
- CN204744348U CN204744348U CN201520549956.7U CN201520549956U CN204744348U CN 204744348 U CN204744348 U CN 204744348U CN 201520549956 U CN201520549956 U CN 201520549956U CN 204744348 U CN204744348 U CN 204744348U
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- needle
- pipe
- handle
- lumbar puncture
- mouth
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Abstract
The utility model relates to the field of medical equipment, lumbar puncture needle especially. Lumbar puncture needle includes main needle tubing, has the needle handle and the needle stamen of inner chamber, and main needle tubing inboard is link up, and main needle tubing rear end and needle handle fixed connection and inner chamber communicate each other, the needle stamen is arranged the needle handle inner chamber in and is connected with the cooperation of needle handle inner chamber wall, still be equipped with a rotatable three -way valve, the pressure measurement mouth of pipe and an injection mouth of pipe that is used for connecting the pressure measurement hose on the needle handle, the pressure measurement mouth of pipe and the injection mouth of pipe respectively with the inner chamber of needle handle intercommunication, the inner chamber of three -way valve can be simultaneously or respectively with inner chamber, the pressure measurement mouth of pipe intercommunication of needle handle, be equipped with a rubber cap on injection mouth of pipe upper portion, the rubber cap can be dismantled with the injection mouth of pipe and be connected. Be difficult for contaminatedly after the disinfection of this lumbar puncture needle side needle tubing, can prevent that cerebrospinal fluid from the lumbar puncture needle that the port of side needle tubing flows, adopting this lumbar puncture needle very safe at the operation in -process.
Description
Technical field
This utility model relates to medical instruments field, particularly a kind of lumbar puncture needle.
Background technology
Lumbar puncture art is one of clinical conventional inspection method, for measuring cerebrospinal pressure, gathering brain ridge specimen, carrying out in the lumbar vertebra paracentesis such as cerebrospinal fluid displacement, it has important value to the Diagnosis and Treat of nervous system disease, but it is as improper in indication grasp, the lighter can increase the weight of original state of an illness, and severe one even jeopardizes patient's safety.The lumbar puncture needle of current clinical employing is by usually making the lumbar puncture needle of its needle handle and needle guard intracavity inter-connection by the needle guard with needle handle and being formed with its nook closing member with needle handle can inserted in its inner chamber, needle handle has side needle tubing, side needle tubing has the side direction injection mouth of pipe.First, because this kind of lumbar puncture needle structure side needle tubing not only easily strengthens the possibility of patient infection because sterilization is tight, nor can prevent cerebrospinal fluid from flowing out from the port of side needle tubing, in operation process, danger is larger.Secondly, current lumbar puncture needle is utilized to carry out operation process, inserting needle distance is complete in doctors experience, and cannot fix after inserting needle or continue to keep puncture needle position firm, and prevent the appearance of everything problem from only controlling with the maneuver of surgical, therefore there is certain iatrogenic injury hidden danger, as patient's needle tubing that particularly reason such as child motor, doctor's bungle causes is shifted in piercing process, cause the malpracticees such as canalis spinalis tissue damaged.
Summary of the invention
Based on the problems referred to above, goal of the invention of the present utility model is not easily contaminated after there are provided the needle tubing sterilization of a kind of side, and the lumbar puncture needle that can prevent cerebrospinal fluid from flowing out from the port of side needle tubing, adopts this lumbar puncture needle very safe in operation process.
In order to realize foregoing invention object, this utility model have employed following technical scheme:
Lumbar puncture needle, comprises main needle tubing, and with needle handle and the pin stamen of inner chamber, through inside described main needle tubing, main syringe rear end is fixedly connected with needle handle and inner chamber is interconnected; Described pin stamen is placed in needle handle inner chamber and is connected with needle handle internal chamber wall; Described needle handle is also provided with a rotatable three-way valve, for connecting the pressure measurement mouth of pipe and an injection mouth of pipe of pressure measurement flexible pipe, the described pressure measurement mouth of pipe and the injection mouth of pipe respectively with the inner space of described needle handle; The inner chamber of described three-way valve can be communicated with the inner chamber of described needle handle, the described pressure measurement mouth of pipe at the same time or separately; A rubber cap is provided with on described injection mouth of pipe top; Described rubber cap and the injection mouth of pipe removably connect.
As preferably, described pin stamen is made up of the nook closing member head be fixedly connected with and needle core handle; Described nook closing member head stretches into inside described needle handle; Needle core handle is positioned at the port of needle handle, and matches with the port inner wall of needle handle.
As preferably, the described injection mouth of pipe to be positioned on front side of the described pressure measurement mouth of pipe and with the inner space of needle handle.
As preferably, also comprise and being sleeved on main needle tubing and the detachable fixture being fixed on needle tubing optional position.
As preferably, described fixture is made up of sleeve pipe, spanner and clip; It is outside that described sleeve pipe is slidably set in described main needle tubing; Described spanner is hinged on the tube wall of sleeve pipe, and the inner of described spanner is in inside pipe casing; Be provided with one by compression leg at the inner sidepiece of spanner, the inner of described clip is fixedly connected with by compression leg, and when spanner presses down, clip is fixedly stuck on described main needle tubing.
As preferably, described fixture is made up of sleeve pipe and lock-screw; Lock-screw outer end is provided with knob, and the inner is provided with soft pad; Described cover tube side part is provided with screw, and lock-screw is threaded in screw.
As preferably, described main needle tubing outer wall is provided with scale.
Have employed this and use novel lumbar puncture needle, compared with existing lumbar puncture needle, the needle handle of this lumbar puncture needle is also provided with a rotatable three-way valve, for connecting the pressure measurement mouth of pipe and an injection mouth of pipe of pressure measurement flexible pipe, the inner chamber of three-way valve can be communicated with the inner chamber of needle handle, the pressure measurement mouth of pipe at the same time or separately; Be provided with a rubber cap on injection mouth of pipe top, this rubber cap can not only effectively prevent cerebrospinal fluid from flowing out from the port of side needle tubing, and also reduces the tight and risk of infected patient of sterilization, thus makes lumbar puncture needle carry out performing the operation in operation process safer.
Accompanying drawing explanation
Fig. 1: be structural representation one of the present utility model;
Fig. 2: be structure intention two of the present utility model;
Fig. 3: be A portion structure for amplifying schematic diagram in this utility model Fig. 2.
Fig. 4: be the structure for amplifying schematic diagram of fixture in this utility model embodiment 2.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described further.
Embodiment 1: lumbar puncture needle as Figure 1-3, this lumbar puncture needle comprises main needle tubing 11, with the needle handle 12 of inner chamber and pin stamen, pin stamen is made up of the nook closing member head 21 be fixedly connected with and needle core handle 22.Nook closing member head 21 to stretch into inside needle handle 12 can and through to main needle tubing 11, this needle core handle 22 is contained in the port being positioned at needle handle 12, and matches with the port inner wall of needle handle 12.Through inside main needle tubing 11, main needle tubing 11 rear end is fixedly connected with needle handle 12 and inner chamber is interconnected.Pin stamen is placed in needle handle 12 inner chamber and is connected with needle handle 12 internal chamber wall.The above-mentioned injection mouth of pipe 121 to be positioned on front side of the pressure measurement mouth of pipe 120 and with the inner space of needle handle 12, medicine can inject directly to the injection mouth of pipe 121, convenient and safe and be not easy to be blocked by cerebrospinal fluid.Needle handle 12 is also provided with a rotatable three-way valve 123, for connecting the pressure measurement mouth of pipe 120 and an injection mouth of pipe 121 of pressure measurement flexible pipe, the pressure measurement mouth of pipe 120 and the injection mouth of pipe 121 respectively with the inner space of needle handle 12.
The inner chamber of three-way valve 123 can be communicated with the inner chamber of needle handle 12 and the pressure measurement mouth of pipe 120 simultaneously or respectively, be provided with a rubber cap 122, and rubber cap 122 and the injection mouth of pipe 121 removably connects on the injection mouth of pipe 121 top.
Conveniently use, be also provided with rotatable three-way valve 123 in the inside of needle handle 12, a mouth of three-way valve 123 is equal with the overall diameter length of nook closing member head 21 with the interior diameter of b mouth.The inner chamber of this three-way valve 123 can be communicated with the inner chamber of needle handle 12, the pressure measurement mouth of pipe 120 at the same time or separately.When three-way valve 123 rotates the state be not connected to needle guard inner chamber and the pressure measurement mouth of pipe 120, nook closing member head 21 inserts in needle handle 12 and main needle tubing 11, can start to carry out puncturing operation.When the b mouth of three-way valve 123 is threaded to the pressure measurement mouth of pipe 120 connected state, pressure measurement flexible pipe can be used to carry out pressure measurement to the cerebrospinal fluid flowed out, also can adjust cerebrospinal fluid flow velocity according to pressure measurement result swivel tee valve 123.When a mouth of three-way valve 123 is threaded to the pressure measurement mouth of pipe 120 connected state, when namely the external port of the pressure measurement mouth of pipe 120, needle handle 12 is not all with needle guard inner space, above-mentioned rubber cap 122 can be taken off, from the injection mouth of pipe 121 inwardly injectable drug.
Routinely during operation use lumbar puncture needle of the present utility model, carry out according to the following steps: 1 prepares lumbar puncture: when three-way valve 123 being rotated the state be not connected to needle guard inner chamber and the pressure measurement mouth of pipe 120, nook closing member head 21 inserts in needle guard completely, carries out puncturing operation in patient body precalculated position; 2 pressure measurement: puncture successfully, by three-way valve 123 b mouth be threaded to the pressure measurement mouth of pipe 120 connected state time, can use pressure measurement flexible pipe to flow out cerebrospinal fluid carry out pressure measurement, also can adjust cerebrospinal fluid flow velocity according to pressure measurement result swivel tee valve 123; 3 specimen takens: after pressure measurement, rotate the state to above-mentioned steps 1 by three-way valve 123, and sample flows out from the external port of needle handle 12 automatically; 4 injections: a mouth of three-way valve 123 is threaded to and the pressure measurement mouth of pipe 120 connected state, and the pressure measurement mouth of pipe 120, needle handle 12 external port all not with needle guard inner space time, above-mentioned rubber cap 122 can be taken off, from the injection mouth of pipe 121 inwardly injectable drug.As without the need to injection, now can extract lumbar puncture needle and terminate operation.
It should be noted that, three-way valve 123 also can be rotated the state to above-mentioned steps 1 by injection step, injection is carried out from the external port of needle handle 12, use also very convenient, just the injection mouth of pipe 121 is equipped with the setting of rubber cap 122, the sterilization that can effectively avoid complex appts to cause such as sternly not to infect at the situation, and does not make injections difficult because cerebrospinal fluid blocking needle guard inner chamber.
In order to ensure inserting needle safety further, main needle tubing 11 outer wall is provided with graduation mark 110, and the spacing of every bar graduation mark 110 is 0.1 centimetre, controlled depth of needle accordingly.As in Figure 2-4, main needle tubing 11 is also provided with is sleeved on main needle tubing 11 and detachable for being fixed on the fixture 30 of needle tubing optional position.
Fixture 30 is made up of sleeve pipe 31, spanner 32 and clip 33, and it is outside that sleeve pipe 31 is slidably set in main needle tubing 11.Spanner 32 is hinged on the tube wall of sleeve pipe 31, and the inner of spanner 32 is in sleeve pipe 31 inside; Be provided with one by compression leg 320 at the inner sidepiece of spanner 32, the inner of clip 33 is fixedly connected with by compression leg 320, and when spanner 32 presses down, clip 33 is fixedly stuck on main needle tubing 11.Be provided with one by compression leg 320 at the inner sidepiece of spanner, the inner of clip 33 is fixedly connected with by compression leg 320.It should be noted that this length by compression leg 320 should ensure, when downward pressing spanner, clip 33 can be made to touch and prop up on main needle tubing 11 tube wall.
In order to detect cerebrospinal pressure, and according to showing the difference of pressure, the convenient rate of outflow controlling cerebrospinal fluid, needle handle 12 is also provided with one for connecting the pressure measurement mouth of pipe 120 of pressure measurement flexible pipe, the inner space of the pressure measurement mouth of pipe 120 and needle handle 12.
Embodiment 2: the present embodiment is only the different of fixture 30 from the difference of embodiment 1, the fixture 30 of the present embodiment is made up of sleeve pipe 31 and lock-screw 34.Lock-screw 34 outer end is provided with knob, and the inner is provided with soft pad 35.Sleeve pipe 31 sidepiece is provided with screw, and lock-screw 34 is threaded in screw, and when tightening knob, the inner of lock-screw 34 is pressed on main needle tubing 11 by soft pad 35, thus realizes fixing.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. lumbar puncture needle, comprise main needle tubing (11), with needle handle (12) and the pin stamen of inner chamber, described main needle tubing (11) inner side is through, and main needle tubing (11) rear end is fixedly connected with needle handle (12) and inner chamber is interconnected; Described pin stamen is placed in needle handle (12) inner chamber and is connected with needle handle (12) internal chamber wall; Described needle handle (12) is also provided with a rotatable three-way valve (123), for connecting the pressure measurement mouth of pipe (120) and an injection mouth of pipe (121) of pressure measurement flexible pipe, the described pressure measurement mouth of pipe (120) and the injection mouth of pipe (121) respectively with the inner space of described needle handle (12); The inner chamber of described three-way valve (123) can be communicated with the inner chamber of described needle handle (12) and the described pressure measurement mouth of pipe (120) simultaneously or respectively; A rubber cap (122) is provided with on the described injection mouth of pipe (121) top; Described rubber cap (122) and the injection mouth of pipe (121) removably connect.
2. lumbar puncture needle as claimed in claim 1, is characterized in that: described pin stamen is made up of the nook closing member head (21) be fixedly connected with and needle core handle (22); Described nook closing member head (21) stretches into described needle handle (12) inner side; Needle core handle (22) is positioned at the port of needle handle (12), and matches with the port inner wall of needle handle (12).
3. lumbar puncture needle as claimed in claim 1, is characterized in that: the described injection mouth of pipe (121) be positioned at the described pressure measurement mouth of pipe (120) front side and with the inner space of needle handle (12).
4. a kind of lumbar puncture needle as claimed in claim 1, is characterized in that: also comprise and being sleeved on main needle tubing (11) and the detachable fixture (30) being fixed on needle tubing optional position.
5. lumbar puncture needle as claimed in claim 4, is characterized in that: described fixture (30) is made up of sleeve pipe (31), spanner (32) and clip (33); It is outside that described sleeve pipe (31) is slidably set in described main needle tubing (11); Described spanner (32) is hinged on the tube wall of sleeve pipe (31), and the inner of described spanner (32) is in sleeve pipe (31) inside; One is provided with by compression leg (320) at the inner sidepiece of spanner (32), the inner of described clip (33) is fixedly connected with by compression leg (320), when spanner (32) presses down, clip (33) is fixedly stuck on described main needle tubing (11).
6. lumbar puncture needle as claimed in claim 4, is characterized in that: described fixture (30) is made up of sleeve pipe (31) and lock-screw (34); Lock-screw (34) outer end is provided with knob, and the inner is provided with soft pad (35); Described sleeve pipe (31) sidepiece is provided with screw, and lock-screw (34) is threaded in screw.
7. the lumbar puncture needle as described in claim 5 or 6, is characterized in that: described main needle tubing (11) outer wall is provided with scale (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520549956.7U CN204744348U (en) | 2015-07-28 | 2015-07-28 | Lumbar puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520549956.7U CN204744348U (en) | 2015-07-28 | 2015-07-28 | Lumbar puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204744348U true CN204744348U (en) | 2015-11-11 |
Family
ID=54459113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520549956.7U Expired - Fee Related CN204744348U (en) | 2015-07-28 | 2015-07-28 | Lumbar puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204744348U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109965950A (en) * | 2019-04-30 | 2019-07-05 | 孙靖驰 | It is a kind of for inputting the lumbar puncture needle and its application method of anaesthetic |
| CN110974365A (en) * | 2019-11-29 | 2020-04-10 | 浙江量子医疗器械有限公司 | Intervertebral disc puncture needle |
| CN111110329A (en) * | 2020-01-14 | 2020-05-08 | 山东省千佛山医院 | Disposable infant lumbar puncture needle |
| CN112842408A (en) * | 2021-02-04 | 2021-05-28 | 中国人民解放军陆军军医大学第一附属医院 | Auxiliary propelling device for lumbar puncture needle |
-
2015
- 2015-07-28 CN CN201520549956.7U patent/CN204744348U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109965950A (en) * | 2019-04-30 | 2019-07-05 | 孙靖驰 | It is a kind of for inputting the lumbar puncture needle and its application method of anaesthetic |
| CN110974365A (en) * | 2019-11-29 | 2020-04-10 | 浙江量子医疗器械有限公司 | Intervertebral disc puncture needle |
| CN111110329A (en) * | 2020-01-14 | 2020-05-08 | 山东省千佛山医院 | Disposable infant lumbar puncture needle |
| CN112842408A (en) * | 2021-02-04 | 2021-05-28 | 中国人民解放军陆军军医大学第一附属医院 | Auxiliary propelling device for lumbar puncture needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20160728 |