CN2081286U - Lumbar puncture pressure-measuring device - Google Patents
Lumbar puncture pressure-measuring device Download PDFInfo
- Publication number
- CN2081286U CN2081286U CN 91212005 CN91212005U CN2081286U CN 2081286 U CN2081286 U CN 2081286U CN 91212005 CN91212005 CN 91212005 CN 91212005 U CN91212005 U CN 91212005U CN 2081286 U CN2081286 U CN 2081286U
- Authority
- CN
- China
- Prior art keywords
- pressure
- liquid storage
- pressure gauge
- storage bag
- needle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a lumbar puncture pressure-measuring device. The utility model is mainly suitable for lumbar puncture of human body, the measurement of the encephalic pressure, the persistent monitoring for the encephalic pressure and the treatment of the control drainage cerebrospinal fluid to the increase of the encephalic pressure, and the utility model can be also used to monitor the central venous pressure. The utility model comprises a pressure-measuring meter, a puncture needle, a needle core, a liquid storage bag, the joint with four-way tubes and a guide tube. The two passages of the joint with four-way tubes are respectively provided with the puncture needle and the needle core, and the other two passages are respectively connected with the pressure-measuring meter and the liquid storage bag. An adjusting controlling valve is arranged between the joint with four-way tubes and the liquid storage bag, and the needle core is matched with the tube cavity of the joint with four-way tubes in a sliding mode and is sheathed with the puncture needle. The utility model has the advantages of small size, accurate measured pressure, low cost, convenient use, multiple functions, etc.
Description
This utility model relates to a kind of medical apparatus and instruments, is mainly used in human body lumbar puncture and ventricular puncture and measures intracranial pressure, ICP.
Since 1891, the clinical size that is used to observe patient's intracranial pressure is to rely on puncture needle to draw effusive number of cerebrospinal fluid record to estimate intracranial pressure always, adopt vertical glass-tube piezometer to measure intracranial pressure later on, though tangible progress is arranged on manometric technique, but still there is some important defective, the one, can not control the cerebrospinal fluid flow, when intracranial hypertension patient puncture pressure measuring, in case lose a small amount of cerebrospinal fluid, significant change takes place in intracranial pressure at once, can not record first pressing value accurately and loses diagnostic value; The 2nd, existing intracranial pressure measuring device can not be made persistence ICP and controlled drainage of cerebrospinal fluid; The 3rd, when intracranial pressure surpassed 30mmHg, if can not control cerebrospinal fluid, not only pressure measurement was inaccurate, and often can bring out cerebral crisis and jeopardize patient's life.Therefore, existing lumbar puncture pressure measurement and the vertical glass-tube piezometer pressure measurement needs of incompatibility modern medicine diagnosis and treatment.
The purpose of this utility model provides a kind of intracranial pressure that can make things convenient for rapidly, record safely, accurately, and can be applicable to lasting ICP and controlled drainage of cerebrospinal fluid, also can be used as the monitoring of central venous pressure, in addition, it is little to provide a kind of special and aforementioned pressure tester to have a volume, easy to carry, price is low, pressure measurement pressure gauge accurately.
The purpose of this utility model is achieved in that pressure gauge, puncture needle, pin stamen, Liquid storage bag adorn puncture needle and pin stamen respectively by two passages of a four-way union, two other passage is connected with Liquid storage bag with pressure gauge respectively by conduit, two passages of dress puncture needle and pin stamen in a straight line on the four-way union, pin stamen and four-way union tube chamber are and are slidingly matched, and the pin stamen passes behind the tube chamber and puncture needle fit mutually.Between four-way union and the Liquid storage bag controlling valve is housed.In addition, pressure gauge of the present utility model adopts the structure of airtight cavity volume thin-walled sensed pressure, and by the composite lever drive mechanism reciprocating motion of airtight cavity volume thin film is converted into the rotation of gear, and then becomes the motion of pointer.
Below in conjunction with description of drawings concrete structure of the present utility model is described in detail:
Fig. 1 is an overall structure sketch map of the present utility model.
Fig. 2 is the structure cross-sectional schematic of pressure gauge.
Fig. 3 takes down vertical view behind the cap (10) for Fig. 2.
By shown in Figure 1, this utility model is by pressure gauge (1), four-way union (2), puncture needle (3), pin stamen (4), Liquid storage bag (5) and conduit (6), (7) form, two passages of four-way union (2) are adorned puncture needle (3) and pin stamen (4) respectively, two other passage is by conduit (6), (7) connect pressure gauge (1) and Liquid storage bag (5) respectively, two passages of installation puncture needle (3) and pin stamen (4) in a straight line, the tube chamber of pin stamen (4) and four-way union (2) is and is slidingly matched, pin stamen (4) passes behind the tube chamber and puncture needle (3) fit mutually, four-way union (2) go up connect pressure gauge (1) and Liquid storage bag (5) two passages also in a straight line.Between four-way union (2) and Liquid storage bag (5), controlling valve (8) is set.As 2, shown in 3, pressure gauge is by housing (9), the cap (10) (can with reference to figure 1) of band graduation apparatus, pointer ［ 11 ］, needle pivot ［ 12 ］, on, bottom plate ［ 13 ］, ［ 14 ］, oil silk ［ 15 ］ and by greatly, pinion ［ 16 ］, ［ 17 ］ compositions such as gear mechanism of Zu Chenging, the oil silk braid is on needle pivot ［ 12 ］, and it is fixing by the strut ［ 18 ］ of upper mounted plate ［ 13 ］, greatly, pinion ［ 16 ］, ［ 17 ］ be separately fixed on Large Gear Shaft During ［ 19 ］ and the needle pivot ［ 12 ］, Large Gear Shaft During ［ 19 ］ and needle pivot ［ 12 ］ all are contained in, bottom plate ［ 13 ］, ［ 14 ］ on, and they and last, bottom plate ［ 13 ］, ［ 14 ］ be between and be slidingly matched, the outstanding characteristics of pressure gauge of the present utility model are that an airtight cavity volume ［ 20 ］ is arranged at the bottom in housing (9), its upper wall is one can change with institute's holding liquid pressure in the cavity volume and produce the thin film ［ 21 ］ of agitating up and down, cavity volume ［ 20 ］ has a conduit ［ 22 ］ to stretch out outside the housing (9), agitating up and down of cavity volume upper wall thin film can change the rotation of aforesaid gears mechanism by the composite lever drive mechanism into, this composite lever mechanism is by the rotating shaft ［ 23 ］ that is loaded on bottom plate ［ 14 ］ bottom, and the lever hook ［ 24 ］ and the gear driving lever ［ 25 ］ that are fixed in the rotating shaft ［ 23 ］ are formed.Aforementioned gear wheel has a breach on ［ 16 ］, and gear driving lever ［ 25 ］ inserts in this breach, and the crotch end of lever hook ［ 24 ］ contacts with the surface of thin film ［ 21 ］.Described thin film ［ 21 ］ can be several annular corrugated metallic film that combines and constitute with central plane.Through on probation, adopt the steel disc drawing effect of 2-4 decimillimeter better.Flushing for convenience, sterilization cavity volume ［ 20 ］ and discharge cerebrospinal fluid, cavity volume ［ 20 ］ has opening in the center of housing (9), and sealing screw ［ 26 ］ sealing is housed.
To be that example is sketched operation principle of the present utility model as follows to measure intracranial pressure and monitoring below:
With puncture needle (3) the puncture lumbar vertebra subarachnoid space or the ventricles of the brain, pin stamen (4) is fallen back on the rear end at four-way union decussation place, intracranial pressure or cerebrospinal fluid are introduced conduit (6), enter cavity volume ［ 20 ］ through conduit ［ 22 ］, thin film ［ 21 ］ produces and agitates up and down, by lever hook ［ 24 ］ rotating shaft ［ 23 ］ is rotated, thereby gear driving lever ［ 25 ］ is stirred gear wheel (6) and is rotated, through pinion (7), needle pivot ［ 12 ］ drives pointer and rotates, indicate intracranial pressure, puncture needle is not transferred to human body, be that sustainable survey intracranial pressure is opened controlling valve (8), cerebrospinal fluid can be introduced Liquid storage bag by conduit (7), intracranial pressure is reduced, thus the treatment intracranial hypertension.If open screw ［ 26 ］, cavity volume ［ 20 ］ can be cleaned and sterilize.
The utlity model has following advantage:
1, volume is little, the pressure measurement standard.
2, to minute-pressure reacting condition sensitivity, can survey positive and negative value minute-pressure.
3, be easy to carry, easy to use.
4, without power supply, but all pressure measurement at any time can be used for doing in patient's transport process intracranial pressure and central venous pressure monitoring.
5, mix disposable adnexa, can measure the first pressing that waist is worn accurately, can prevent that the intracranial hypertension patient from wearing the anxiety that cerebral crisis is brought out in pressure measurement as waist.
6, after null offset, be easy to suppressed zero, and can make the zero point correction instrument of intracrenial pressure monitor.
7, cheap.
Claims (5)
1, a kind of lumbar puncture pressure tester, it is characterized in that it is by pressure gauge (1), four-way union (2), puncture needle (3), pin stamen (4), Liquid storage bag (5), and conduit (6), (7), form, two passages of four-way union (2) are adorned puncture needle (3) and pin stamen (4) respectively, two other passage is by conduit (6), (7) connect pressure gauge (1) and Liquid storage bag (5) respectively, and two passages of installation puncture needle (3) and pin stamen (4) in a straight line, the tube chamber of pin stamen (4) and four-way union (2) is and is slidingly matched, pin stamen (4) passes behind the tube chamber and puncture needle (3) fit mutually, two passages of four-way union (2) last connection pressure gauge (1) and Liquid storage bag (5) are provided with controlling valve (8) also in a straight line in addition between four-way union (2) and Liquid storage bag (5).
2, a kind of pressure gauge that is exclusively used in aforementioned lumbar puncture pressure tester, it is by housing (9), the cap (10) of band graduation apparatus, needle pivot ［ 12 ］, upper mounted plate ［ 13 ］, bottom plate ［ 14 ］, oil silk ［ 15 ］, by greatly, pinion ［ 16 ］, ［ 17 ］ compositions such as gear mechanism of Zu Chenging, the oil silk braid is on needle pivot ［ 12 ］, and it is fixing by the strut ［ 18 ］ of upper mounted plate, big pinion ［ 16 ］, ［ 17 ］ be separately fixed on gear shaft ［ 19 ］ and the needle pivot ［ 12 ］, greatly, pinion shaft ［ 19 ］ and needle pivot ［ 12 ］ all are loaded on, bottom plate ［ 13 ］, ［ 14 ］ on, and they and last, bottom plate ［ 13 ］, ［ 14 ］ be and be slidingly matched, of the present utility modelly be characterised in that airtight cavity volume ［ 20 ］ is arranged at the bottom in housing (9), its upper wall is the thin film ［ 21 ］ that can agitate up and down with the interior fluid pressure variation of cavity volume ［ 20 ］, cavity volume ［ 20 ］ has a conduit ［ 22 ］ to stretch out outside the housing (9), cavity volume upper wall thin film agitate the rotation that is converted into the gear wheel ［ 16 ］ of aforesaid gears mechanism by composite lever mechanism up and down, this composite lever mechanism is by the rotating shaft ［ 23 ］ that is loaded on bottom plate ［ 14 ］ bottom, and the lever hook ［ 24 ］ and the gear driving lever ［ 25 ］ that are fixed in the rotating shaft ［ 23 ］ are formed, aforementioned gear wheel ［ 16 ］ has a breach, gear driving lever ［ 25 ］ inserts in this breach, and the crotch end of lever hook ［ 24 ］ contacts with thin film ［ 21 ］ surface.
3, pressure gauge according to claim 2 is characterized in that the metallic film that aforementioned thin film ［ 21 ］ is served as reasons several annular corrugated and combined with central plane and to constitute.
4, pressure gauge according to claim 3 is characterized in that the steel disc drawing of described thin film by the 2-4 decimillimeter.
5, in the center of housing (9) opening is arranged according to claim 2,3,4 its cavity volumes of described pressure gauge ［ 20 ］, and sealing screw ［ 26 ］ is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91212005 CN2081286U (en) | 1991-01-03 | 1991-01-03 | Lumbar puncture pressure-measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91212005 CN2081286U (en) | 1991-01-03 | 1991-01-03 | Lumbar puncture pressure-measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2081286U true CN2081286U (en) | 1991-07-24 |
Family
ID=4920586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91212005 Expired - Lifetime CN2081286U (en) | 1991-01-03 | 1991-01-03 | Lumbar puncture pressure-measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2081286U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1929789B (en) * | 2004-02-11 | 2010-06-09 | 脊骨技术公司 | Device for monitoring the penetration of an instrument into an anatomical structure |
| CN102526817A (en) * | 2012-02-15 | 2012-07-04 | 山东大正医疗器械股份有限公司 | Pressure monitoring and regulating device for in-vitro drainage system |
| CN103006295A (en) * | 2012-12-11 | 2013-04-03 | 王萍 | Lumbar puncture needle |
-
1991
- 1991-01-03 CN CN 91212005 patent/CN2081286U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1929789B (en) * | 2004-02-11 | 2010-06-09 | 脊骨技术公司 | Device for monitoring the penetration of an instrument into an anatomical structure |
| CN102526817A (en) * | 2012-02-15 | 2012-07-04 | 山东大正医疗器械股份有限公司 | Pressure monitoring and regulating device for in-vitro drainage system |
| CN102526817B (en) * | 2012-02-15 | 2015-03-11 | 山东大正医疗器械股份有限公司 | Pressure monitoring and regulating device for in-vitro drainage system |
| CN103006295A (en) * | 2012-12-11 | 2013-04-03 | 王萍 | Lumbar puncture needle |
| CN103006295B (en) * | 2012-12-11 | 2015-06-03 | 王金成 | Lumbar puncture needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |