CN202761383U - Fragment aspirator - Google Patents
Fragment aspirator Download PDFInfo
- Publication number
- CN202761383U CN202761383U CN 201220268427 CN201220268427U CN202761383U CN 202761383 U CN202761383 U CN 202761383U CN 201220268427 CN201220268427 CN 201220268427 CN 201220268427 U CN201220268427 U CN 201220268427U CN 202761383 U CN202761383 U CN 202761383U
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- CN
- China
- Prior art keywords
- inner tube
- probe
- probe inner
- fluid chamber
- liquid
- 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 discloses a fragment aspirator which comprises a casing, a probe outer tube and a probe inner tube, wherein the probe inner tube extends to the back end of the casing; the front end of the probe inner tube is connected with a tool bit, and the back end of the probe inner tube is connected with a transmission shaft; the transmission shaft is connected with a driving device; and a liquid inlet and a liquid outlet are arranged on the wall on the rear section of the casing. The fragment aspirator is characterized in that a liquid distribution cavity is arranged in the casing; the liquid inlet is communicated with the liquid distribution cavity; the probe inner tube and one section of the transmission shaft are arranged in the liquid distribution cavity; the probe inner tube and the transmission shaft are connected with one end wall of the liquid distribution cavity respectively in a dynamic sealing manner; the wall of the probe inner tube is provided with a liquid inlet hole, and the cavity of the probe inner tube is a liquid inlet cavity; a back section liquid return cavity is arranged between the wall of the liquid distribution cavity and the inner wall of the casing; a front section liquid return cavity is arranged between the probe outer tube and the probe inner tube, and is communicated with the back section liquid return cavity; and the liquid outlet is communicated with the back section liquid return cavity. Because the axial lengths of all cavities are increased, the fragment aspirator disclosed by the utility model provides convenience for discharging air; after the liquid inlet and the liquid outlet are arranged nearer to each other, the fragment aspirator becomes beautiful and is more convenient to assemble, and the structure of the fragment aspirator is simplified.
Description
Technical field
This utility model is relevant with the hematoma clearance device, especially the crushing aspirating device of hematoma clearance device.
Background technology
In cerebral hemorrhage treatment, usually use clinically the hematoma clearance device at present.Above-mentioned hematoma clearance device comprises crushing aspirating device and the balanced lavage device that links to each other with crushing aspirating device.Broken suction nozzle by on the crushing aspirating device cuts into tiny fragment with hematoma, then by liquid flow tiny hematoma fragment is excreted.The low pressure chamber of present crushing aspirating device and high pressure chest be in tandem vertically, although can realize the balanced lavage function, is unfavorable for aerofluxus, and complex structure, and pipeline connection port disperses, inconvenient clamping.
This shows, hematoma clearance device of the prior art awaits further to improve.
The utility model content
Task of the present utility model is to solve the technological deficiency of the crushing aspirating device existence of hematoma clearance device in the prior art, and a kind of crushing aspirating device is provided.
Its technical solution is:
A kind of crushing aspirating device, comprise housing, be fixed on the probe outer tube of housing front end and be positioned at the probe inner tube of probe outer tube, the probe inner tube extends to the housing rear end always, the front end of probe inner tube is connected with cutter head, the rear end of probe inner tube is connected with and can drives the power transmission shaft that the probe inner tube is rotated, power transmission shaft is connected with driving device, is provided with inlet and liquid outlet at the back segment shell wall of housing; Be provided with one section cloth sap cavity that stretches along axis direction in enclosure interior, inlet is connected the cloth sap cavity, one section of the probe inner tube with power transmission shaft one section is positioned at the cloth sap cavity, the probe inner tube is connected with an end chamber wall movable sealing of cloth sap cavity respectively with power transmission shaft, be provided with inlet opening at the probe inner pipe wall that is positioned at the cloth sap cavity, the tube chamber of probe inner tube is admission chamber, between the inwall of the axial cavity wall of cloth sap cavity and housing, be provided with the back segment back to the fluid chamber, between probe outer tube and probe inner tube, it is the front end back to the fluid chamber, the leading portion back to the fluid chamber is connected the back segment back to the fluid chamber, and liquid outlet is connected the back segment back to the fluid chamber.
Also be provided with liquid feeding and subtract and hold mouthful on the back segment shell wall of above-mentioned housing, liquid outlet, liquid feeding subtract to hold mouthful to be arranged side by side successively with inlet is in the same place.
The main part section structure of above-mentioned leading portion back to the fluid chamber is annular, and the main part section structure of back segment back to the fluid chamber is similar to semi-circular.
Above-mentioned back segment back to the fluid chamber is positioned at the housing middle and upper part.
The cross-sectional area of above-mentioned cloth sap cavity is less than the cross-sectional area of back segment back to the fluid chamber.
The centrage of above-mentioned cloth sap cavity is away from the centrage of back segment back to the fluid chamber.
The utlity model has following useful technique effect:
In this utility model, the low pressure chamber that is consisted of by back segment back to the fluid chamber and leading portion back to the fluid chamber, be arranged in parallel vertically with the high pressure chest that is consisted of by cloth sap cavity and probe inner tube tube chamber, and low pressure chamber and high pressure chest are axially prolonged, namely increased the axial length of each cavity, tube chamber narrows down, and bubble can be taken out of when working solution flows, not only be conducive to aerofluxus, and structure is simplified also.In addition, the mouth such as the liquid such as inlet, liquid outlet has been arranged side by side successively, convenient clamping housing.
Description of drawings
Below in conjunction with accompanying drawing and the specific embodiment this utility model is illustrated further:
Fig. 1 is the structural principle schematic diagram of a kind of embodiment of the present utility model.
Fig. 2 mainly shows the profile part of Fig. 1 mode.
Fig. 3 shows a kind of decomposing state of Fig. 1 mode.
Fig. 4 shows the cuing open of a kind of embodiment at this utility model middle shell position and shows structure.
Fig. 5 shows the cuing open of another kind of embodiment at this utility model middle shell position and shows structure.
The specific embodiment
In conjunction with Fig. 1, Fig. 2 and Fig. 3, a kind of crushing aspirating device comprises housing 1, is fixed on the probe outer tube 3 of housing front end and is positioned at the probe inner tube 2 of probe outer tube.Above-mentioned probe inner tube extends to the housing rear end always, the front end of probe inner tube is connected with cutter head, the rear end of probe inner tube is connected with and can drives the power transmission shaft 4 that the probe inner tube is rotated, power transmission shaft is connected with driving device, drive the rotation of probe inner tube by driving device by power transmission shaft, and carry cutter head by the probe inner tube and rotate.Back segment shell wall at above-mentioned housing is provided with inlet 5 and liquid outlet 6, be provided with one section cloth sap cavity 7 that stretches along axis direction in enclosure interior, inlet is connected the cloth sap cavity, one section of the probe inner tube with power transmission shaft one section is positioned at the cloth sap cavity, the probe inner tube is connected with an end chamber wall movable sealing of cloth sap cavity respectively with power transmission shaft, be provided with inlet opening 8 at the probe inner pipe wall that is positioned at the cloth sap cavity, the tube chamber 9 of probe inner tube is admission chamber, and above-mentioned cloth sap cavity and probe inner tube tube chamber consist of high pressure chest; Between the inwall of the axial cavity wall of cloth sap cavity and housing, be provided with back segment back to the fluid chamber 10, between probe outer tube and probe inner tube, it is front end back to the fluid chamber 11, the leading portion back to the fluid chamber is connected the back segment back to the fluid chamber, and liquid outlet is connected the back segment back to the fluid chamber, and above-mentioned back segment back to the fluid chamber and leading portion back to the fluid chamber consist of low pressure chamber.
As a kind of decision design: also be provided with liquid feeding and subtract and hold mouthfuls 12 on the back segment shell wall of above-mentioned housing, liquid feeding subtracts and holds mouthfuls 12 and can be communicated with high pressure chest or low pressure chamber, and liquid outlet, liquid feeding subtract to hold mouthful to be arranged side by side successively with inlet is in the same place.Above-mentioned liquid feeding subtracts to hold and mouthful is used for connecting crushing aspirating device outer pipeline and syringe, is used for pushing a small amount of liquid when crushing aspirating device inserts and extracts cerebral tissue, avoids injured brain tissue, and can according to requirements of operation increase or the minimizing system in the working solution total amount; When removing hematoma work, close.
As a kind of decision design: referring to Fig. 4, above-mentioned back segment back to the fluid chamber is positioned at the housing middle and upper part; The main part section structure of leading portion back to the fluid chamber is annular, and the main part section structure of back segment back to the fluid chamber is similar to semi-circular, also refers to semi-circular.The benefit of design is that low pressure chamber is further optimized like this, can overcome better prior art mesolow chamber second half section cavity section structure is the easy drawback of being detained gas on cavity top, being unfavorable for aerofluxus that annular brings, and more is conducive to further strengthen exhaust effect.
As a kind of decision design: referring to Fig. 5, under the traffic requirement that satisfies probe inner tube and probe outer tube, the cross section of cloth sap cavity should be as far as possible little and the cross section back segment back to the fluid chamber should be large as far as possible.Under this principle, more excellent design be the center (line) of cloth sap cavity away from the center (line) of back segment back to the fluid chamber, do not hinder the probe inner tube to rotate in the situation that do not change external diameter, make the sectional area of back segment back to the fluid chamber maximum.
In the aforesaid way, housing can be an independent part, also can be the assembly of one group of part.Housing can be designed as the tubular structure of any profile, be circular tubular body but more excellent design is cross section, and profile is as far as possible carefully to satisfy the fixed clamp needs.
Operation principle of the present utility model roughly is:
The pressure piping of hydraulic fluid outside crushing aspirating device enters the cloth sap cavity via inlet; Enter the tube chamber of probe inner tube by the inlet opening on the probe inner tube; Flow into forward broken suction nozzle part, through haematoma cavity, circulating reflux is to the leading portion back to the fluid chamber; And flow into backward the back segment back to the fluid chamber by the leading portion back to the fluid chamber.By liquid outlet, get back in the outer low pressure pipeline of crushing aspirating device at last.
The relevant technologies content of not addressing in the aforesaid way is taked or is used for reference prior art and can realize.
Need to prove, those skilled in the art can also make such or such easy variation pattern under the instruction of this description, such as equivalent way, or obvious mode of texturing.Above-mentioned variation pattern all should be within protection domain of the present utility model.
Claims (6)
1. crushing aspirating device, comprise housing, be fixed on the probe outer tube of housing front end and be positioned at the probe inner tube of probe outer tube, the probe inner tube extends to the housing rear end always, the front end of probe inner tube is connected with cutter head, the rear end of probe inner tube is connected with and can drives the power transmission shaft that the probe inner tube is rotated, power transmission shaft is connected with driving device, is provided with inlet and liquid outlet at the back segment shell wall of housing; It is characterized in that: be provided with one section cloth sap cavity that stretches along axis direction in enclosure interior, inlet is connected the cloth sap cavity, one section of the probe inner tube with power transmission shaft one section is positioned at the cloth sap cavity, the probe inner tube is connected with an end chamber wall movable sealing of cloth sap cavity respectively with power transmission shaft, be provided with inlet opening at the probe inner pipe wall that is positioned at the cloth sap cavity, the tube chamber of probe inner tube is admission chamber, between the inwall of the axial cavity wall of cloth sap cavity and housing, be provided with the back segment back to the fluid chamber, between probe outer tube and probe inner tube, it is the front end back to the fluid chamber, the leading portion back to the fluid chamber is connected the back segment back to the fluid chamber, and liquid outlet is connected the back segment back to the fluid chamber.
2. crushing aspirating device according to claim 1 is characterized in that: also be provided with liquid feeding and subtract and hold mouthful on the back segment shell wall of described housing, liquid outlet, liquid feeding subtract to hold mouthful to be arranged side by side successively with inlet is in the same place.
3. crushing aspirating device according to claim 1, it is characterized in that: the main part section structure of described leading portion back to the fluid chamber is annular, the main part section structure of back segment back to the fluid chamber is similar to semi-circular.
4. crushing aspirating device according to claim 3, it is characterized in that: described back segment back to the fluid chamber is positioned at the housing middle and upper part.
5. crushing aspirating device according to claim 4, it is characterized in that: the cross-sectional area of described cloth sap cavity is less than the cross-sectional area of back segment back to the fluid chamber.
6. crushing aspirating device according to claim 5, it is characterized in that: the centrage of described cloth sap cavity is away from the centrage of back segment back to the fluid chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220268427 CN202761383U (en) | 2012-06-08 | 2012-06-08 | Fragment aspirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220268427 CN202761383U (en) | 2012-06-08 | 2012-06-08 | Fragment aspirator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202761383U true CN202761383U (en) | 2013-03-06 |
Family
ID=47767997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220268427 Expired - Lifetime CN202761383U (en) | 2012-06-08 | 2012-06-08 | Fragment aspirator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202761383U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102697537A (en) * | 2012-06-08 | 2012-10-03 | 李广成 | Surgical aspirator |
-
2012
- 2012-06-08 CN CN 201220268427 patent/CN202761383U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102697537A (en) * | 2012-06-08 | 2012-10-03 | 李广成 | Surgical aspirator |
| WO2013182025A1 (en) * | 2012-06-08 | 2013-12-12 | Li Guangcheng | Debris aspiration apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130306 Effective date of abandoning: 20140226 |
|
| RGAV | Abandon patent right to avoid regrant |