CN203341799U - Automatic pressure-measuring lumbar spinal needle - Google Patents
Automatic pressure-measuring lumbar spinal needle Download PDFInfo
- Publication number
- CN203341799U CN203341799U CN 201220085675 CN201220085675U CN203341799U CN 203341799 U CN203341799 U CN 203341799U CN 201220085675 CN201220085675 CN 201220085675 CN 201220085675 U CN201220085675 U CN 201220085675U CN 203341799 U CN203341799 U CN 203341799U
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- needle
- pressure
- lumbar spinal
- cerebrospinal fluid
- spinal needle
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Abstract
The utility model discloses a lumbar spinal needle, and the lumbar spinal needle automatically measures cerebrospinal fluid pressure through a medical pressure sensor on the basis of an ordinary lumbar spinal needle. The automatic pressure-measuring lumbar spinal needle comprises a needle tube (1), a needle base (3), a needle core (2), a tee joint drainage tube (4), a semiconductor strain gauge (10) and a data conductive line (11). The tee joint drainage hole (4) and two holes are designed in the needle base of the lumbar spinal needle, the side hole is a pressure measuring hole (12), and the straight hole is a drainage hole (5). The cerebrospinal fluid flows through the tee joint drainage tube and is connected with the semiconductor strain gauge (10), after the strain gauge senses pressure signals, biological signals are transmitted into an electronic pressure detector through the data line, a signal amplification module and a conversion module are arranged in the electronic pressure detector, and the biological signals can be converted into digital signals to be displayed. According to the automatic pressure-measuring lumbar spinal needle, due to the fact that the medical pressure sensor and the tee joint drainage device are used, the automatic pressure-measuring lumbar spinal needle is fast and accurate to use, and the occurrence of iatrogenic pollution is prevented. Medicine infusion is convenient. The pressure can be measured before the cerebrospinal fluid is drained, and only when the cerebrospinal fluid pressure is within a safe range, the cerebrospinal fluid is drained, and the automatic pressure-measuring lumbar spinal needle is safer to use.
Description
Technical field
This utility model relates to a kind of medical apparatus, for detection of cerebrospinal pressure, gathers cerebrospinal fluid and can be used for the injection of medicine in sheath.
Background technology
The lumbar puncture art is clinical comparatively common a kind of operating technology, its purpose is intended to leave and take a certain amount of samples of CSF, by detecting the cell number of cerebrospinal fluid, form, the content of various ions and cerebrospinal pressure, with assisted diagnosis infection, tumor and cranium disease of brain.Give chemotherapeutic, antibiotic and anesthetis by intrathecal injection simultaneously.As the leukaemic needs irregularly row intrathecal injection chemotherapeutics, with prevention and treatment central nervous system leukemia.The topmost contraindication of lumbar puncture is intracranial hypertension, can cause the generation of cerebral hernia if intracranial pressure is too high.This is one of clinical acute disease, deals with improperly, can cause vital center suffer oppression and make patient death.Before operation, often need the row CT examination, expensively not say, intracranial pressure raises and not necessarily can be found by imaging examination.
The essential device of lumbar puncture: the lumbar puncture needle with nook closing member, disinfectant liquid for skin, operation towel, collecting pipe and a manometer.Must detect the pressure of cerebrospinal fluid in operating process, for clinical, do the diagnosis reference.Common manometer is the U-shaped of the glass with a rubber tube device.This device need to be connected rubber hose with the puncture needle needle stand, a certain amount of cerebrospinal fluid of drain just can record pressure.This installs complicated operation, easily causes cerebrospinal fluid to leak outside, and pollutes.If Cerebrospinal Fluid in Patients is too high, under unknown situation, the blindness drain very easily causes the generation of cerebral hernia.And because this device is difficult for fixing, complicated operation, need artificial reading, and error is larger.
The utility model content
This utility model is the variety of issue occurred in above-mentioned medical care precess process, the lumbar puncture needle of the automatic detection of brain SFP of design, and concrete technical scheme is as follows:
This utility model is a kind of automatic voltage measurement lumbar puncture needle, by needle tubing 1, and needle stand 3, nook closing member 2, three-way drainage tube 4, conduction hole 5, conduction hole deck 6, pin cap 7, control valve 8, control valve handle 9, semiconductor gauge 10, data call wire 11, pressure detecting hole 12 forms; It is characterized in that design three-way drainage tube 4 on needle stand 3, by rotating regulation valve 8, make cerebrospinal fluid first communicate with the semiconductor gauge 10 on pressure detecting hole 12, to after the pressure signal induction, pass through data wire 11, be transferred to the electron pressure detector, the signal conversion module is housed in pressure detector, bio signal can be converted into to digital signal and shows.With scale, be convenient to like this grasp the degree of depth of puncture on needle tubing 1 of the present utility model, contribute to the success of puncture.The rotatable spherical or columned threeway drainage system in lumbar puncture needle needle stand 3 three holes of central design, but this device dextrorotation turn 90 degrees.Lumbar puncture needle needle stand 3 must be that transparent nonconducting rigid plastics is made, and inlays a semiconductor gauge 10 on the sidewall of needle stand 3, and this foil gauge is made the groove shape, is convenient to like this join with data wire 11 joints of electron pressure monitor.This utility model can be avoided the seepage of cerebrospinal fluid in operation, prevents from polluting.While having avoided cerebrospinal pressure too high simultaneously, the damage that blindly drain causes.
The accompanying drawing explanation
Fig. 1: transverse cross-sectional view
Fig. 2: side view
1 needle tubing with scale, 2 nook closing members, 3 needle stands, 4 three-way drainage tubes, 5 conduction holes, 6 drainage tube decks, 7 pin caps, 8 control valves, 9 control valve handles, 10 semiconductor gauges, 11 data wires, 12 pressure detecting holes
The specific embodiment
Below in conjunction with accompanying drawing, practical operation of the present utility model is described in detail: this utility model is a kind of lumbar puncture needle that can carry out the automatic detection of brain SFP, design three-way drainage tube 4 and semiconductor gauge 10 on the basis of common lumbar puncture needle, and be connected with a kind of electron pressure detector by data wire, thereby the size of automatic detection of brain SFP, for clinical diagnosis and treatment.
Implement one:
At three-way drainage tube 4 of common lumbar puncture needle needle stand central design.This design can design on the material of common lumbar puncture needle, common lumbar puncture needle needle stand is that the polyethylene hard plastics designs, this utility model also can adopt this rigid plastics, this hard plastics is insulant, there is no electric conductivity, require this material is all-transparent simultaneously, is easy to like this observe the outflow of cerebrospinal fluid.During making, only semiconductor gauge 10 need be embedded on the pressure detecting hole 12 of needle stand 3, but the necessary electric conductivity that guarantees semiconductor gauge 10.Three-way drainage tube 4 of central design at needle stand, have a rotatable control valve 8 on this three-way drainage tube 4.When control valve handle 9 points to the conduction hole 5 of needle stand 3, be initial position, now the nook closing member 2 of puncture needle can lead to needle point through three-way drainage tube 4.After puncturing successfully, extract nook closing member 2, now can carry out drainage of cerebrospinal fluid or carry out intrathecal injection (carry out cerebrospinal pressure mensuration if do not need or known cerebrospinal pressure can first carry out this operation within normal range.If the unknown of Cerebrospinal Fluid in Patients pressure or patient can first carry out cerebrospinal pressure mensuration while having the symptom of brain hypertension, if cerebrospinal pressure carries out drainage of cerebrospinal fluid or intrathecal injection in the safety operation scope again.Suggestion: advanced cerebrospinal pressure is measured)
Implement two:
After puncturing successfully, extract nook closing member 2, the control valve 8 on swivel tee drainage tube 4, make control valve handle 9 point to pressure detecting hole 12 directions of needle stand 3.Now cerebrospinal fluid can flow to the side opening section, and needle stand conduction hole 5 is closed.Cerebrospinal fluid contacts with the semiconductor gauge 10 on it after entering pressure detecting hole 12, and under the effect of cerebrospinal pressure, the change of shape occurs this foil gauge 10.After alteration of form, its resistance value changes.This semiconductor gauge 10 can be made a groove shape, can make like this joint of data wire be easy to join with foil gauge, thereby forms conductive path.This semiconductor gauge can be embedded on the puncture needle needle stand 3 that rigid plastics makes, and periphery seal prevents from that cerebrospinal fluid from exosmosing to cause unnecessary pollution.Whole puncture needle comprises that nook closing member is all disposable use, after the use of unpacking, as medical waste, deals carefully with.
Implement three:
After cerebrospinal fluid and semiconductor gauge 10 join, by external jack formula data wire 11 and electric voltage detector, join.These electronic detectors are according to the principle of resistance-strain pressure transducer, be that semiconductor gauge its resistance value under the effect of being under pressure becomes certain linear relationship with pressure, change the corresponding relation changed with output voltage according to pressure, just by measuring voltage, obtain force value.This electric voltage detector mainly comprises: pressure transducer, the signal of telecommunication amplifies, A/D converter, pressure signal display.And these electronic detectors also can bought on the market, and extensively quote in armarium.This checkout gear is reusable, while using, only need provide external power supply to get final product at every turn.
Claims (4)
1. an automatic voltage measurement lumbar puncture needle, by needle tubing (1), needle stand (3), nook closing member (2), three-way drainage tube (4), conduction hole (5), conduction hole deck (6), pin cap (7), control valve (8), control valve handle (9), semiconductor gauge (10), data call wire (11), pressure detecting hole (12) form; It is characterized in that at the upper design of needle stand (3) three-way drainage tube (4), by rotating regulation valve (8), make cerebrospinal fluid first communicate with the semiconductor gauge (10) on pressure detecting hole (12), to after the pressure signal induction, pass through data wire (11), be transferred to the electron pressure detector, the signal conversion module is housed in pressure detector, bio signal can be converted into to digital signal and shows.
2. automatic voltage measurement lumbar puncture needle as claimed in claim 1, is characterized in that the needle tubing (1) of described lumbar puncture needle is upper with scale, is convenient to like this grasp the degree of depth of puncture, contributes to the success of puncture.
3. automatic voltage measurement lumbar puncture needle as claimed in claim 1, it is characterized in that the rotatable spherical or columned threeway drainage system in three holes of described lumbar puncture needle needle stand (3) central design, but this device dextrorotation turn 90 degrees.
4. automatic voltage measurement lumbar puncture needle as claimed in claim 1, it is characterized in that described lumbar puncture needle needle stand (3) must be that transparent nonconducting rigid plastics is made, inlay a semiconductor gauge (10) on the sidewall of needle stand (3), this foil gauge is made the groove shape, is convenient to like this join with data wire (11) joint of electron pressure monitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220085675 CN203341799U (en) | 2012-03-08 | 2012-03-08 | Automatic pressure-measuring lumbar spinal needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220085675 CN203341799U (en) | 2012-03-08 | 2012-03-08 | Automatic pressure-measuring lumbar spinal needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203341799U true CN203341799U (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220085675 Expired - Fee Related CN203341799U (en) | 2012-03-08 | 2012-03-08 | Automatic pressure-measuring lumbar spinal needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203341799U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107157553A (en) * | 2017-05-23 | 2017-09-15 | 中国医科大学附属第医院 | The controllable digitlization waist of cerebrospinal fluid flow wears measuring cell |
| CN113350613A (en) * | 2021-06-04 | 2021-09-07 | 北京泰杰伟业科技有限公司 | Chemical liquid control device and chemical liquid supply system |
-
2012
- 2012-03-08 CN CN 201220085675 patent/CN203341799U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107157553A (en) * | 2017-05-23 | 2017-09-15 | 中国医科大学附属第医院 | The controllable digitlization waist of cerebrospinal fluid flow wears measuring cell |
| CN107157553B (en) * | 2017-05-23 | 2023-09-26 | 中国医科大学附属第一医院 | Digital lumbar puncture pressure gauge with controllable cerebrospinal fluid flow |
| CN113350613A (en) * | 2021-06-04 | 2021-09-07 | 北京泰杰伟业科技有限公司 | Chemical liquid control device and chemical liquid supply system |
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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 |
Granted publication date: 20131218 Termination date: 20150308 |
|
| EXPY | Termination of patent right or utility model |