CN200963154Y - Disposable marrow quantitative suction device - Google Patents
Disposable marrow quantitative suction device Download PDFInfo
- Publication number
- CN200963154Y CN200963154Y CN 200620099168 CN200620099168U CN200963154Y CN 200963154 Y CN200963154 Y CN 200963154Y CN 200620099168 CN200620099168 CN 200620099168 CN 200620099168 U CN200620099168 U CN 200620099168U CN 200963154 Y CN200963154 Y CN 200963154Y
- Authority
- CN
- China
- Prior art keywords
- suction
- bone marrow
- syringe
- suction cylinder
- air flue
- 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 - Fee Related
Links
Images
Abstract
A disposable quantitative marrow aspirator comprises a suction syringe provided with a set of piston parts inside, wherein the suction syringe or the set of piston parts is provided with a gas channel and a switch. The utility model is characterized in that a suction hole is arranged at the bottom of the syringe and connected with a suction volume pipe communicated with the suction hole, and non-hydrophilic hollow fiber ultrafiltration membranes are arranged inside the suction volume pipe and takes the form of the slice or column to be arranged inside the inner cavity of the soft pipe in the front of the suction syringe, and the outside atmosphere is communicated with the air contained inside the suction syringe. At least one tiny hole with a diameter of 0.05-0.3mum is arranged on the ultrafiltration membranes, the volume of the soft tube is 0.1-0.2ml besides the cubage of the ultrafiltration membranes. The negative pressure produced during suction by the suction syringe is transmitted through the air conduction to the bone marrow cavity via the ultrafiltration membranes to deliver the drawn bone marrow fluid into the soft tube. Within a certain pressure range, bone marrow can not enter into the suction syringe due to the gas-liquid separation effect of the ultrafiltration membranes; therefore, the quantitative suction of the bone marrow liquid can be easily accomplished.
Description
Affiliated technical field
Novel a kind of medical apparatus and instruments, the especially a kind of quantitative aspirator of disposable bone marrow that can quantitatively control bone marrow extraction amount of relating to of this use.
Background technology
Bone marrow aspiration marrow aspiration liquid is a kind of traumatic inspection means, and it takes out the marrow amount is 0.1-0.2ml, and negative pressure requires evenly to increase progressively during suction, if aspiration is too much, or pressure increases suddenly, blood sinus is broken, and causes peripheral blood to be inhaled into, bone marrow fluid then can dilute, and makes result of laboratory test inaccurate; If amount is few, just can not satisfy the chemical examination requirement.The bone marrow aspiration process is after puncture is finished at present, one ordinary syringe is connected on the puncture needle, directly suction, because the difference of individual patient, suction vacuum magnitude difference and operating experience are limit, the time have bone marrow fluid dilution and/or the insufficient phenomenon of aspiration to take place, cause bone marrow fluid laboratory examination failure.
Summary of the invention
It is a kind of simple in structure, easy to operate that the purpose of this utility model is to provide, and can the accurate quantitative aspirator of quantitative disposable bone marrow.
The technical scheme that its technical problem that solves this utility model adopts is: the quantitative aspirator of disposable bone marrow, comprise suction cylinder, piston component is arranged in the suction cylinder, air flue and air flue switch member are arranged on suction cylinder or the piston component, it is characterized in that: a suction socket is arranged at the suction cylinder bottom, the suction socket tipping has a suction volume weight tube that communicates with suction socket, in the suction volume weight tube non-hydrophilic hollow fiber ultrafiltration membrane is housed, hollow fiber ultrafiltration membrane is inserted flexible pipe inner chamber, ambient atmosphere and the conducting of suction cylinder gas before the suction cylinder in the mode of lamellar or column.
The quantitative aspirator of aforesaid disposable bone marrow is characterized in that: suction volume weight tube inner chamber is 0.1-0.2ml except the outer volume of the volume of ultrafilter membrane.
The quantitative aspirator of aforesaid disposable bone marrow is characterized in that: described suction volume weight tube is a flexible pipe, and described ultrafilter membrane is a hollow fiber ultrafiltration membrane.
The quantitative aspirator of aforesaid disposable bone marrow is characterized in that: the micro-pore diameter on the ultrafilter membrane is 0.05-0.3 μ m.
The quantitative aspirator of aforesaid disposable bone marrow is characterized in that: described air flue is in piston rod, and the piston rod afterbody has a rotatable occlusion, and the pore that opens and closes air flue is arranged on it; In the bottom of suction cylinder or barrel one pore is arranged and is furnished with an occlusion that can open and close air flue.
Principle of the present utility model is: the quantitative aspirator of disposable bone marrow, comprise suction cylinder, piston is arranged in the suction cylinder, piston comprises piston rod and rubber ring of piston, there is a passage at the piston rod center, the piston rod afterbody has an occlusion, a suction socket is arranged at the suction cylinder bottom, suction socket partly is hinged with a suction volume weight tube that communicates with suction socket, non-hydrophilic ultrafilter membrane is equipped with in the place that suction volume weight tube and suction socket are joined, and gas conducting suction volume weight tube and suction socket, it is the micropore of 0.05-0.3 μ m that more than one diameter is arranged on the ultrafilter membrane, the suction volume weight tube is 0.1-0.2ml except the outer volume of the volume of ultrafilter membrane, the negative pressure that produces during the suction cylinder suction is passed through gas conduction, be passed to medullary cavity through ultrafilter membrane, bone marrow fluid extracted out entered the suction volume weight tube. in certain pressure limit, because ultrafilter membrane gas-liquid separation effect, bone marrow fluid can not enter in the suction cylinder, thereby the bone marrow fluid of having realized suction is quantitative.
Beneficial effect: simple in structure, quantitatively accurately, easy to operate, one-hand operation has guaranteed the puncture suction success, alleviates patient's misery, and this utility model is disposable products, safety and sanitation.
Description of drawings:
Fig. 1 is the structural representation of this utility model embodiment.Wherein, 1, flexible pipe, 2, ultrafilter membrane, 3, suction cylinder, 4, piston, 5, air flue, 6, occlusion, 7, pore.
The specific embodiment:
The quantitative aspirator of disposable bone marrow, comprise suction cylinder, piston component is arranged in the suction cylinder, and (piston component comprises piston, piston rod and rubber ring of piston), there is an airway at the piston rod center, the piston rod afterbody has an occlusion, the normality of air flue is to be closed condition under occlusion 6 effects, a suction socket is arranged at the suction cylinder bottom, suction socket partly is hinged with a flexible pipe that communicates with suction socket, flexible pipe has certain transparency, (flexible pipe possesses the storage bone marrow fluid for pliable and tough and elasticity, micro-bone marrow fluid is linear the extension forms the vision amplification, to any direction lateral bending, the function of handled easily), non-hydrophilic hollow fiber ultrafiltration membrane is inserted between flexible pipe inner chamber and the suction cylinder with two dimension or three-dimensional mode, and gas conducting flexible pipe and suction socket, this film uses the macromolecule non-hydrophilic composite material (to comprise polypropylene, polyethylene, polysulfones, nylon, Kynoar etc.) be made into planar film or hollow-fibre membrane, it is the micropore of 0.05～0.3 μ m that more than one diameter is arranged on the film, the flexible pipe inner chamber is 0.1-0.2ml except the outer volume of the volume of ultrafilter membrane, behind the piston during the capable suction of shift-in, negative pressure generates, and negative pressure is transmitted marrow aspiration liquid in the medullary cavity through the mode of conductance with pressure.After bone marrow fluid enters in the flexible pipe, because ultrafilter membrane gas-liquid separation effect, bone marrow fluid can not enter in the suction cylinder, after bone marrow fluid aspirated successfully, the rotation occlusion made the pore on the occlusion communicate with open airway, occlusion is open, gas is entered in the suction cylinder by the air flue at piston rod center, and negative pressure is removed.This moment, the reach piston utilized the gas that enters in the suction cylinder to discharge the interior bone marrow fluid of flexible pipe with the quantitative aspirator disengaging of disposable bone marrow human body.
Claims (5)
1, the quantitative aspirator of disposable bone marrow, comprise suction cylinder, piston component is arranged in the suction cylinder, air flue and air flue switch member are arranged on suction cylinder or the piston component, it is characterized in that: a suction socket is arranged at the suction cylinder bottom, and the suction socket tipping has a suction volume weight tube that communicates with suction socket, in the suction volume weight tube non-hydrophilic hollow fiber ultrafiltration membrane is housed, hollow fiber ultrafiltration membrane is inserted flexible pipe inner chamber, ambient atmosphere and the conducting of suction cylinder gas before the suction cylinder in the mode of lamellar or column.
2, the quantitative aspirator of disposable bone marrow as claimed in claim 1 is characterized in that: suction volume weight tube inner chamber is 0.1-0.2ml except the outer volume of the volume of ultrafilter membrane.
3, the quantitative aspirator of disposable bone marrow as claimed in claim 1 or 2, it is characterized in that: described suction volume weight tube is a flexible pipe, described ultrafilter membrane is a hollow fiber ultrafiltration membrane.
4, the quantitative aspirator of disposable bone marrow as claimed in claim 3 is characterized in that: the micro-pore diameter on the ultrafilter membrane is 0.05-0.3 μ m.
5, the quantitative aspirator of disposable bone marrow as claimed in claim 4 is characterized in that: described air flue is in piston rod, and the piston rod afterbody has a rotatable occlusion, and the pore that opens and closes air flue is arranged on it; In the bottom of suction cylinder or barrel one pore is arranged and is furnished with an occlusion that can open and close air flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620099168 CN200963154Y (en) | 2006-09-26 | 2006-09-26 | Disposable marrow quantitative suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620099168 CN200963154Y (en) | 2006-09-26 | 2006-09-26 | Disposable marrow quantitative suction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200963154Y true CN200963154Y (en) | 2007-10-24 |
Family
ID=38867164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620099168 Expired - Fee Related CN200963154Y (en) | 2006-09-26 | 2006-09-26 | Disposable marrow quantitative suction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200963154Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103040490A (en) * | 2012-12-24 | 2013-04-17 | 上海长征医院 | Filter collector for pituitary tumor surgical specimens |
-
2006
- 2006-09-26 CN CN 200620099168 patent/CN200963154Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103040490A (en) * | 2012-12-24 | 2013-04-17 | 上海长征医院 | Filter collector for pituitary tumor surgical specimens |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210077672U (en) | Device for capturing an initial blood flow | |
| US6506165B1 (en) | Sample collection device | |
| CN103068434B (en) | Removable streamer chamber | |
| US20080312576A1 (en) | Plunger-less syringe for controlling blood flow | |
| US5330443A (en) | Aspiration needle, syringe for use therewith, apparatus incorporating the same and kit for use in fine needle aspiration cytology | |
| US5645537A (en) | Aspiration needle and syringe for use therewith, apparatus incorporating the same and kit for use in fine needle aspiration cytology, and method | |
| EP0725658A1 (en) | Closed system blood sampling device | |
| CN200963154Y (en) | Disposable marrow quantitative suction device | |
| CN202982743U (en) | Thoracocentesis device | |
| CN109124694B (en) | Bone marrow puncture needle for hematology department | |
| CN202843624U (en) | Vacuum blood collection tube | |
| CN208049128U (en) | A kind of straight type remaining needle of operation | |
| CN210020534U (en) | Multipurpose sputum suction device | |
| CN201524095U (en) | Quantitative extractor for bone marrow | |
| CN2392498Y (en) | Disposable marrow quantitative suction device | |
| CN205359591U (en) | Disposable palace chamber tissue attracts pipe | |
| CN215273203U (en) | Improved lumbar puncture needle capable of bypassing liquid discharge and provided with bent pipe and pressure gauge | |
| CN207964367U (en) | A kind of clinical laboratory's microscale sampler | |
| JP2579788Y2 (en) | Blood sediment measurement instrument | |
| CN202666045U (en) | Aspirator for secretion on artificial airway subglottic balloon | |
| CN202223612U (en) | Pedaled liquid aspirator | |
| CN211131101U (en) | Clinical medicine inspection vacuum test tube | |
| CN208838315U (en) | The acquisition device of liquid sample | |
| JP4609323B2 (en) | Sample collection liquid container | |
| CN216907980U (en) | Negative pressure blood collection tube special for high altitude or low pressure area |
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: 20071024 Termination date: 20150926 |
|
| EXPY | Termination of patent right or utility model |