CN2256705Y - Liver puncture needle - Google Patents
Liver puncture needle Download PDFInfo
- Publication number
- CN2256705Y CN2256705Y CN 96235844 CN96235844U CN2256705Y CN 2256705 Y CN2256705 Y CN 2256705Y CN 96235844 CN96235844 CN 96235844 CN 96235844 U CN96235844 U CN 96235844U CN 2256705 Y CN2256705 Y CN 2256705Y
- Authority
- CN
- China
- Prior art keywords
- syringe
- lacing film
- transmission shaft
- utility
- 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 - Fee Related
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a liver puncture needle for performing biopsy to the liver tissue of human bodies. The utility model comprises a syringe and a needle head. The utility model is mainly characterized in that a piston body of a syringe piston exposed a syringe needle tube is sheathed with a spring, and is locked by hanging sheets arranged on a piston pushing handle and the end of the needle tube. A transmission shaft is penetrated through a shaft sleeve fixed on an outer wall of the needle tube, the front end of the transmission shaft is provided with a contact, the top end of the contact is provided with an opening for limiting the carry of the needle head. The utility model automatically opens a lock catch with the mode of contact exploration, and uses the tension of the spring to cause the needle head to suck while entering. The utility model has the advantages of simple structure and low cost.
Description
This utility model belongs to medical instruments field, specifically is meant a kind of puncture needle that is used for the Liver Tissue biopsy.
Hepatopathy clinically is of science at present checks, take the method for biopsy generally to have two kinds, that is: liver puncture method and one second kind puncture absorption method, preceding a kind of method can be got more liver organization, be easy to make section, but because the operating time is long, easily scratch liver organization and cause bleeding, danger is bigger, a kind of method puncture time of back is short, but the biological tissue of getting is less, is difficult for making section, perhaps owing to be not punctured to pathological tissues, thereby the positive rate of section is not high, (notification number: 2085225) disclose a kind of puncture rifle that utilizes the pistol machanism principle to be made, it comprises: the trocar and half-arc groove divide forked needle to Chinese patent " the asynchronous rifle that punctures fast automatically of liver biopsy ", and the bifurcated needle tip that it is characterized in that this puncture rifle is the Horse hoof face.
The purpose of this utility model is: but the suction of inserting needle limit, a kind of limit is provided, and can in a second, finish the liver puncture needle of whole aspiration procedure.
The realization the technical solution of the utility model is as follows: it comprises syringe 1, syringe needle 2, its architectural feature is: push away at syringe piston on the step of end of handle and be fixed with lacing film 3, the direction of this lacing film 3 is consistent with the direction of propulsion of syringe piston, the front end of lacing film 3 is provided with snap close 4, also be fixed with at the A point place of the terminal step of syringe needle tube one with lacing film 3 directions lacing film 5 in opposite directions, the front end of lacing film 5 is provided with snap close 6, one of axle sleeve 7 in a tubular form end is fixed on above-mentioned A point place, the other end is fixed on the outer wall of syringe needle tube, axle sleeve 7 is parallel with the direction of above-mentioned needle tubing, the power transmission shaft 8 that evenly is provided with dentation groove 11 on the axial wall passes this axle sleeve 7, and the front end of power transmission shaft 8 is fixed with the contact 9 that a top is forked opening, syringe needle is stuck in the forked opening of this contact, spring 10 is enclosed within syringe piston and exposes on the piston body of syringe needle tube, the one side that relies on power transmission shaft 8 at lacing film 5 also is provided with dentation 12, and this dentation snaps in the dentation groove 11 on the power transmission shaft 8.
Good effect of the present utility model is as follows: it is visited into mode with contact and opens snap close automatically, utilizes the tension force of spring that syringe needle is inhaled while advancing again, finishes whole aspiration procedure fast, and it is simple in structure, with low cost.
Below in conjunction with accompanying drawing this utility model is described in detail,
Fig. 1 is a structural representation of the present utility model,
Fig. 2 is the sketch map that this utility model power transmission shaft 8 links to each other with contact 9,
Fig. 3 is the left view of above-mentioned Fig. 2 in this utility model,
As shown in Figure 1, this utility model comprises syringe 1, syringe needle 2, lacing film 3, lacing film 4, and axle sleeve 7, power transmission shaft 8 and contact 9, its structure is as follows: push away at syringe piston on the step of end of handle and be fixed with a lacing film 3, the direction of this lacing film 3 is consistent with the direction of propulsion of syringe piston, the front end of lacing film 3 is provided with snap close 4, also be fixed with at the A point place (the A point is arbitrary position at its step place) of the terminal step of syringe needle tube one with lacing film 3 directions lacing film 5 in opposite directions, the front end of lacing film 5 is provided with snap close 6, above-mentioned lacing film 3 and 5 can be done into strips by plastics or other hard material, snap close is the barb-like projection of a little one-tenth on it, one of axle sleeve 7 in a tubular form end is fixed on above-mentioned A point place, the other end is fixed on the outer wall of syringe needle tube, axle sleeve 7 is parallel with the direction of above-mentioned needle tubing, axle sleeve 7 can be made by transparent plastic, power transmission shaft 8 passes this axle sleeve 7, and the front end of power transmission shaft 8 is fixed with the contact 9 of the forked opening in top that a usefulness steel wire makes, its vertical forked opening should be corresponding with the thickness of syringe needle, syringe needle is stuck in this forked opening, expose at syringe piston on the piston body of syringe needle tube and be with spring 10, and the axial wall of power transmission shaft 8 is provided with dentation groove 11, the one side that lacing film 5 relies on power transmission shaft 8 is provided with dentation 12, and this dentation snaps in the dentation groove 11 on the power transmission shaft 8.
Before the operation, earlier the compression spring makes the snap close interlock of lacing film 3 and 5, again according to patient's the fat or thin accent knot contact 9 and the position of drive link, make when the tip of syringe needle just to or during near liver surface, contact and contact skin.Operation adopt one second the puncture suction method, when needle point during near liver surface, contact 9 and contact skin, and pressurized makes drive link open snap close on the lacing film 3,5, spring produces elastic force immediately and spurs syringe piston, makes to form negative pressure in the syringe needle tube, can finish whole aspiration procedure.
Claims (1)
1, a kind of liver puncture needle, it comprises syringe 1, syringe needle 2, it is characterized in that:
Push away at the said syringe piston on the step of end of handle and be fixed with lacing film 3, the direction of this lacing film 3 is consistent with the direction of propulsion of syringe piston, the front end of lacing film 3 is provided with snap close 4, also be fixed with at the A point place of the terminal step of syringe needle tube one with lacing film 3 directions lacing film 5 in opposite directions, the front end of lacing film 5 is provided with snap close 6, one of axle sleeve 7 in a tubular form end is fixed on above-mentioned A point place, the other end is fixed on the outer wall of syringe needle tube, axle sleeve 7 is parallel with the direction of above-mentioned needle tubing, the power transmission shaft 8 that evenly is provided with dentation groove 11 on the axial wall passes this axle sleeve 7, and the front end of power transmission shaft 8 is fixed with the contact 9 that a top is forked opening, syringe needle is stuck in the forked opening of this contact, spring 10 is enclosed within syringe piston and exposes on the piston body of syringe needle tube, the one side that relies on power transmission shaft 8 at lacing film 5 also is provided with dentation 12, and this dentation snaps in the dentation groove 11 on the power transmission shaft 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96235844 CN2256705Y (en) | 1996-04-23 | 1996-04-23 | Liver puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96235844 CN2256705Y (en) | 1996-04-23 | 1996-04-23 | Liver puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2256705Y true CN2256705Y (en) | 1997-06-25 |
Family
ID=33911794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96235844 Expired - Fee Related CN2256705Y (en) | 1996-04-23 | 1996-04-23 | Liver puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2256705Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106344078A (en) * | 2016-08-29 | 2017-01-25 | 孟红琳 | Continuous-sampling device on ribbon gastroscope biopsy |
| CN110236781A (en) * | 2019-06-13 | 2019-09-17 | 南京医科大学眼科医院 | It is disposable sterilized adjustable to save medical needle |
-
1996
- 1996-04-23 CN CN 96235844 patent/CN2256705Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106344078A (en) * | 2016-08-29 | 2017-01-25 | 孟红琳 | Continuous-sampling device on ribbon gastroscope biopsy |
| CN110236781A (en) * | 2019-06-13 | 2019-09-17 | 南京医科大学眼科医院 | It is disposable sterilized adjustable to save medical needle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BR0315185A (en) | Skin injection administration under suction | |
| CN209789894U (en) | Negative pressure suction device for puncture biopsy | |
| CN2256705Y (en) | Liver puncture needle | |
| CN2576177Y (en) | Rotary-cutting type pathological tissue puncture biopsy needle | |
| CN2466626Y (en) | Biopsy gun for vacuum circular cutting | |
| CN2776433Y (en) | Degradation type autodestroyed injector | |
| CN2772514Y (en) | Pectoral cavity hemopneumothorax drainage device | |
| CN211583269U (en) | Kidney puncture needle for nephrology department | |
| CN2309839Y (en) | Venipuncture guiding device | |
| CN2629718Y (en) | Negative-pressure puncture needle | |
| CN201104886Y (en) | Hemostix | |
| CN2317811Y (en) | Automatic synchronous negative-pressure sampling device for biopsy | |
| CN2558393Y (en) | Disposable aseptic syringe | |
| CN215341631U (en) | Puncture operation simulation model | |
| CN2176117Y (en) | Multifunctional drawing needle for puncture | |
| CN2197956Y (en) | Automatic negative pressure puncture outfit | |
| CN200948152Y (en) | Guiding head of an esophageal ligator | |
| CN2538352Y (en) | Syringe needle | |
| CN2273192Y (en) | Soxhlet's apparatus | |
| CN2299589Y (en) | Porous puncturing needle | |
| CN201211201Y (en) | Body-surface tumor active check device | |
| CN2220280Y (en) | Disposable thoracic abdominal cavity puncture apparatus | |
| CN208640853U (en) | A kind of gynemetrics's amnion broken instrument | |
| CN2347541Y (en) | Once-used test tube type blood specimen collector | |
| CN2265166Y (en) | Auripuncture apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |