CN203898357U - Maxillary sinus puncture biopsy needle - Google Patents
Maxillary sinus puncture biopsy needle Download PDFInfo
- Publication number
- CN203898357U CN203898357U CN201420261132.5U CN201420261132U CN203898357U CN 203898357 U CN203898357 U CN 203898357U CN 201420261132 U CN201420261132 U CN 201420261132U CN 203898357 U CN203898357 U CN 203898357U
- Authority
- CN
- China
- Prior art keywords
- needle
- closing member
- nook closing
- needle guard
- plane
- 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
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a maxillary sinus puncture biopsy needle comprising a needle sleeve and a needle core. The front end of the needle sleeve is an oblique surface, the needle sleeve sleeves the needle core, the rear portion of the needle core is provided with a needle handle located outside the rear end of the needle sleeve, and the front end of the needle core is provided with an oblique face with the obliquity consistent with that of the oblique surface of the needle sleeve; the front portion of the needle core is provided with an oblique groove oblique to the front end of the needle core, the tail end of the needle sleeve is provided with a clamping groove vertically, and the rear portion of the needle core is transversely provided with a projection matching with the clamping groove. The maxillary sinus puncture biopsy needle has the advantages that the defects that the existing maxillary sinus puncture biopsy needle cannot take out solid tissue are overcome, the solid tissue can be taken out, and operation is simple.
Description
Technical field
This utility model belongs to diagnostic instrument field, is specifically related to a kind of puncture antral biopsy needle.
Background technology
Maxillary sinus inflammation is the inflammatory lesion of maxillary sinus, in treatment, can use puncture antral biopsy needle, is mainly the pus in maxillary sinus is drawn out the object that reaches taking-up inflammation.Existing puncture antral biopsy needle comprises needle guard and nook closing member, and needle guard is hollow, and nook closing member is solid, nook closing member is enclosed within needle guard, by nook closing member and the needle guard puncture maxillary sinus that is nested together, then take out nook closing member, in needle guard, form negative pressure the pus of inflammation part in maxillary sinus is extracted.But, after in puncture biopsy needle puncture Enters upper jaw Dou, find that some is not pus, but solid, shaped, if medical personnel want solid portion to take out and detect, and its sucking-off need to cannot be readopted to other modes pathological changes solid position is taken out with negative pressure extracting, operating process bothers and causes patient suffering.
Utility model content
The technical problems to be solved in the utility model is cannot take out the shortcoming of solid tissue for existing puncture antral biopsy needle, provides a kind of and can take out solid tissue, puncture antral biopsy needle simple to operate.
In order to solve the problems of the technologies described above, this utility model provides following technical scheme: puncture antral biopsy needle, comprise needle guard and nook closing member, needle guard front end is inclined-plane, and nook closing member is placed in needle guard, nook closing member rear portion is provided with needle handle, needle handle is positioned at outside needle guard rear end, and nook closing member front end is provided with the inclined-plane consistent with the inclined-plane gradient of needle guard, and the front portion of nook closing member is also provided with to the skewed slot of nook closing member front end inclination, needle guard end is vertically provided with draw-in groove, and nook closing member posterior transversal is provided with the projection coordinating with draw-in groove.
The puncture antral biopsy needle that adopts technical solutions of the utility model, comprises needle guard and nook closing member, and needle guard front end is inclined-plane, and nook closing member is placed in needle guard, and nook closing member rear portion is provided with needle handle, and needle handle is positioned at outside needle guard rear end; Inclined-plane needle guard front end is beneficial to puncture, and the needle handle at nook closing member rear portion is beneficial to and hand-heldly nook closing member is inserted to needle guard or take out from needle guard.Nook closing member front end is provided with the inclined-plane consistent with the inclined-plane gradient of needle guard; The inclined-plane of nook closing member overlaps with the inclined-plane of needle guard, is beneficial to needle guard is inserted to maxillary sinus, after insertion, nook closing member is taken out, and can in needle guard, form negative pressure, and pus is taken out.The front portion of nook closing member is also provided with to the skewed slot of nook closing member front end inclination; When needs take out solid tissue, can utilize the skewed slot of nook closing member front portion, solid tissue's scraping is taken out of.Needle guard end is vertically provided with draw-in groove, and nook closing member posterior transversal is provided with the projection coordinating with draw-in groove; Projection can be inserted in draw-in groove, makes, and nook closing member stretches out needle guard, and skewed slot one side, near solid tissue, is then pulled to nook closing member, by solid tissue's scraping in skewed slot, thereby obtain solid tissue, simple to operate.
Further, described skewed slot is positioned at the inclined-plane opposite side of nook closing member front end.The skewed slot of comparing is located at top, inclined-plane, and the length that need to extend nook closing member is longer, thereby saves the extended length of nook closing member, as long as rotate nook closing member, skewed slot can be exposed, and scraping is more convenient.
Further, the length of described nook closing member is greater than the length of needle guard, and to be raised to the length of nook closing member front end consistent with needle guard length at nook closing member rear portion.When nook closing member inclined-plane overlaps with needle guard inclined-plane, the projection at nook closing member rear portion is positioned at outside the end of needle guard, when rotation nook closing member, projection is stuck in draw-in groove, and nook closing member moves forward, and nook closing member stretches out needle guard front end, skewed slot is exposed completely, then pull nook closing member, guarantee that skewed slot scraping is to enough solid tissues.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, technical solutions of the utility model are further illustrated:
Fig. 1 is the schematic diagram of this utility model puncture antral biopsy needle embodiment skewed slot while exposing;
Fig. 2 is the schematic diagram of this utility model skewed slot while hiding.
The specific embodiment
As shown in Figure 1 and Figure 2, this utility model puncture antral biopsy needle, comprise needle guard 1 and nook closing member 2, needle guard 1 front end is inclined-plane, and nook closing member 2 is placed in needle guard 1, nook closing member 2 rear portions are provided with needle handle 3, needle handle 3 is positioned at outside needle guard 1 rear end, and nook closing member 2 front ends are provided with the inclined-plane consistent with the inclined-plane gradient of needle guard 1, and the front portion of nook closing member 2 is also provided with to the skewed slot 4 of nook closing member 2 front ends inclinations, needle guard 1 end is vertically provided with draw-in groove 5, and nook closing member 2 posterior transversal are provided with the projection 6 coordinating with draw-in groove 5; Described skewed slot 4 is positioned at the inclined-plane opposite side of nook closing member 2 front ends; The length of described nook closing member 2 is greater than the length of needle guard 1, and nook closing member 2 rear portion projections 6 are consistent with needle guard 1 length to the length of nook closing member 2 front ends.
In specific implementation process, the both sides, rear portion of needle guard 1 are provided with handle, and draw-in groove 5 is located at a side identical with needle guard 1 inclined-plane, and the projection 6 of nook closing member 2 is located at a relative side on nook closing member 2 inclined-planes.During use, the hands handle of hand-held needle guard 1, first nook closing member 2 is inserted in needle guard 1, the inclined-plane of needle guard 1 is overlapped with the inclined-plane of nook closing member 2, now, draw-in groove 5 and projection 6 are in opposite face, then maxillary sinus punctures, in the time only need to drawing pus, extract nook closing member 2 and can from needle guard 1, draw pus, when finding that maxillary sinus Nei You solid tissue need to take out, revolve hand-held needle handle 3, by protruding 6 Rotate 180 degree, projection 6 is put in draw-in groove 5, now, nook closing member 2 stretches out forward, skewed slot 4 Rotate 180 degree are positioned at the place, inclined-plane of needle guard 1, then, skewed slot 4 is located near solid tissue, pull again nook closing member 2, be that available skewed slot 4 is by solid tissue's scraping and along with nook closing member 2 is taken out of.
For a person skilled in the art; do not departing under the prerequisite of this utility model structure; can also make some distortion and improvement, these also should be considered as protection domain of the present utility model, and these can not affect effect and practical applicability that this utility model is implemented.
Claims (3)
1. puncture antral biopsy needle, comprise needle guard and nook closing member, needle guard front end is inclined-plane, nook closing member is placed in needle guard, and nook closing member rear portion is provided with needle handle, and needle handle is positioned at outside needle guard rear end, it is characterized in that: nook closing member front end is provided with the inclined-plane consistent with the inclined-plane gradient of needle guard, the front portion of nook closing member is also provided with to the skewed slot of nook closing member front end inclination, and needle guard end is vertically provided with draw-in groove, and nook closing member posterior transversal is provided with the projection coordinating with draw-in groove.
2. puncture antral biopsy needle as claimed in claim 1, is characterized in that: described skewed slot is positioned at the inclined-plane opposite side of nook closing member front end.
3. puncture antral biopsy needle as claimed in claim 2, is characterized in that: the length of described nook closing member is greater than the length of needle guard, and to be raised to the length of nook closing member front end consistent with needle guard length at nook closing member rear portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261132.5U CN203898357U (en) | 2014-05-21 | 2014-05-21 | Maxillary sinus puncture biopsy needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261132.5U CN203898357U (en) | 2014-05-21 | 2014-05-21 | Maxillary sinus puncture biopsy needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203898357U true CN203898357U (en) | 2014-10-29 |
Family
ID=51772661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420261132.5U Expired - Fee Related CN203898357U (en) | 2014-05-21 | 2014-05-21 | Maxillary sinus puncture biopsy needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203898357U (en) |
-
2014
- 2014-05-21 CN CN201420261132.5U patent/CN203898357U/en not_active Expired - Fee Related
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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: 20141029 Termination date: 20160521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |