CN104905824A - Medical puncture needle - Google Patents
Medical puncture needle Download PDFInfo
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- CN104905824A CN104905824A CN201510412711.4A CN201510412711A CN104905824A CN 104905824 A CN104905824 A CN 104905824A CN 201510412711 A CN201510412711 A CN 201510412711A CN 104905824 A CN104905824 A CN 104905824A
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- needle
- puncture needle
- notch
- endoporus
- puncture
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Abstract
The invention provides a medical puncture needle, belongs to the technical field of B-ultrasonic medical instruments, and solves the problems that fewer materials are drawn and tissues are inconveniently cut off. The medical puncture needle comprises a needle seat, a puncture needle body, a solid needle core and a needle tube with a second inner hole, one end of the needle seat is fixedly connected with the tail of the puncture needle body, a first inner hole is formed in the needle seat and the puncture needle body, the needle tube penetrates the first inner hole, the needle core penetrates the second inner hole, a first notch is formed in the puncture needle body, a second notch is formed in the needle tube, an annular groove is formed in the first inner hole, an annular block matched with the annular groove is arranged on the outer wall of the needle tube, a spring is arranged between one end of the annular groove and the annular block, a first projection and a second projection are arranged at the tails of the needle core and the needle tube respectively, the first projection is abutted to the second projection, the second projection can be squeezed and pressed or loosened, so that the annular block squeezes or loosens the spring, and the first notch and the second notch are staggered or communicated. Biopsy tissues can be sucked and staggered through the first notch and the second notch, so that the tissues are conveniently cut off.
Description
Technical field
The invention belongs to B ultrasonic technical field of medical instruments, relate to a kind of medical puncture needle.
Background technology
Biopsy needle is a kind of medical apparatus and instruments, is applicable to the multiple organs such as kidney, liver, lung, mammary gland, thyroid, prostate, pancreas, testis, uterus, ovary, body surface, can be used for the living tissue sampling of entity tumor and not clear tumor etc., draws cell.
Present routine autopsy pin mostly is needle puncture biopsy, though the method is easy and simple to handle, safer, shortcoming is that the amount of drawing materials is less, lack experience or draw materials position not at that time, not thrusting tumor district and obtain representational tumor tissue, and puncture after block organize comparatively difficulty, therefore, be badly in need of seeking a kind of quick, method that is accurate, that reduce sufferer misery of drawing materials in the process of punch biopsies.
Summary of the invention
The object of the invention is for the above-mentioned problems in the prior art, provide one and block tissue fast, and more medical puncture needle of drawing materials.
Object of the present invention realizes by following technical proposal: a kind of medical puncture needle, comprise needle stand, puncture needle and solid nook closing member, one end and the puncture needle afterbody of needle stand are connected, endoporus one is provided with along needle length direction in needle stand and puncture needle, it is characterized in that: also comprise the needle tubing that cross section is annular, there is in described needle tubing endoporus two, and needle tubing head penetrates endoporus one from needle stand afterbody, described nook closing member head penetrates endoporus two from needle tubing afterbody, described puncture needle comprises needle point and needle handle, described puncture needle needle handle has multiple notch one, described needle tubing offers multiple notch two, the endoporus one that described needle stand is corresponding is provided with the cannelure arranged along needle length direction, needle tubing outer wall is provided with ring block, and described ring block is located at, and cannelure is interior also can slide along needle length direction, spring is provided with between described cannelure one end and ring block, described nook closing member afterbody and needle tubing afterbody are respectively equipped with protruding one and protruding two, described projection one is resisted against on protruding two, and by squeeze towards puncture needle cephalad direction by or release projection two make the extruding of described ring block or trip spring, and make described notch one misplace with notch two or be communicated with.
By lancet puncture skin and after arriving object tissue, taken out by nook closing member, needle tubing connects syringe.Now protruding two is releasing orientation, therefore notch one is communicated with notch two, biopsy enters in the endoporus two of needle tubing by the negative pressure-pumping of syringe, as some notches one and notch two block time, by other notch one and notch two, biopsy is sucked, squeeze afterwards and make ring block extrusion spring by protruding two, and make notch one and notch two misplace to cut the biopsy sucked by notch one and notch two in endoporus two, release projection two also extracts puncture needle fast again afterwards, therefore a pin multidraw object is reached, and it is fast very convenient to cut off biopsy process, reduce the misery of patient.
In above-mentioned a kind of medical puncture needle, described notch one and notch two be circular and circumferential edge all in cutting edge shape.
Make Biopsy organizational process very quick by the notch one of cutting edge shape and notch two.
In above-mentioned a kind of medical puncture needle, described puncture needle head is provided with gear edge on endoporus one, and described nook closing member seamlessly can be fitted in gear along on inner face.
In above-mentioned a kind of medical puncture needle, when release projection two, described ring block is resisted against one end of cannelure, and now described nook closing member head is concordant with puncture needle head.
Therefore skin puncture process is more smooth.
Compared with prior art, tool of the present invention has the following advantages:
By lancet puncture skin and after arriving object tissue, taken out by nook closing member, needle tubing connects syringe.Now protruding two is releasing orientation, therefore notch one is communicated with notch two, biopsy enters in the endoporus two of needle tubing by the negative pressure-pumping of syringe, as some notches one and notch two block time, by other notch one and notch two, biopsy is sucked, squeeze afterwards and make ring block extrusion spring by protruding two, and make notch one and notch two misplace to cut the biopsy sucked by notch one and notch two in endoporus two, release projection two also extracts puncture needle fast again afterwards, therefore a pin multidraw object is reached, and it is fast very convenient to cut off biopsy process, reduce the misery of patient.
Accompanying drawing explanation
Fig. 1 is this puncture needle front view.
Fig. 2 is this puncture needle sectional view.
Fig. 3 is this puncture needle using state figure.
In figure,
1, needle stand; 11, endoporus one; 12, cannelure;
2, puncture needle; 21, needle point; 22, needle handle; 23, notch one; 24, edge is kept off;
3, nook closing member; 31, protruding one;
4, needle tubing; 41, endoporus two; 42, notch two; 43, ring block; 44, protruding two;
5, spring.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As Figure 1-3, a kind of medical puncture needle of the present invention, comprise needle stand 1, puncture needle 2 and solid nook closing member 3, one end and puncture needle 2 afterbody of needle stand 1 are connected, endoporus 1 is provided with along puncture needle 2 length direction in needle stand 1 and puncture needle 2, also comprise the needle tubing 4 that cross section is annular, there is in needle tubing 4 endoporus 2 41, and needle tubing 4 head penetrates endoporus 1 from needle stand 1 afterbody, nook closing member 3 head penetrates endoporus 2 41 from needle tubing 4 afterbody, puncture needle 2 comprises needle point 21 and needle handle 22, puncture needle 2 needle handle 22 has multiple notch 1, needle tubing 4 offers multiple notch 2 42, the endoporus 1 of needle stand 1 correspondence is provided with the cannelure 12 arranged along puncture needle 2 length direction, needle tubing 4 outer wall is provided with ring block 43, and ring block 43 is located at, and cannelure 12 is interior also can slide along puncture needle 2 length direction, spring 5 is provided with between cannelure 12 one end and ring block 43, nook closing member 3 afterbody and needle tubing 4 afterbody are respectively equipped with protruding 1 and protruding 2 44, protruding 1 are resisted against on protruding 2 44, and by towards puncture needle 2 cephalad direction squeeze by or release projection 2 44 ring block 43 is extruded or trip spring 5, and make notch 1 misplace with notch 2 42 or be communicated with.
Further, notch 1 and notch 2 42 be circular and circumferential edge all in cutting edge shape.Puncture needle 2 head is provided with gear along 24 on endoporus 1, and nook closing member 3 seamlessly can be fitted in gear along on 24 inner faces.When release projection 2 44, ring block 43 is resisted against one end of cannelure 12, and now nook closing member 3 head is concordant with puncture needle 2 head.
Puncture needle 2 skin puncture after arriving object tissue, to be taken out by nook closing member 3, needle tubing 4 connects syringe.Now protruding 2 44 is releasing orientation, therefore notch 1 is communicated with notch 2 42, biopsy enters in the endoporus 2 41 of needle tubing 4 by the negative pressure-pumping of syringe, during as some notches 1 and notch 2 42 blocking, by other notch 1 and notch 2 42, biopsy is sucked, squeeze afterwards and make ring block 43 extrusion spring 5 by protruding 2 44, and notch 1 and notch 2 42 are misplaced with cutting by the biopsy in notch 1 and notch 2 42 suction endoporus 2 41, release projection 2 44 also extracts puncture needle 2 fast again afterwards, therefore a pin multidraw object is reached, and it is fast very convenient to cut off biopsy process, reduce the misery of patient.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ needle stand 1, endoporus 1, cannelure 12, puncture needle 2, needle point 21, needle handle 22, notch 1 herein, keep off along 24, nook closing member 3, protruding 1, needle tubing 4, endoporus 2 41, notch 2 42, ring block 43, the term such as protruding 2 44, spring 5, do not get rid of the probability using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (4)
1. a medical puncture needle, comprise needle stand (1), puncture needle (2) and solid nook closing member (3), one end and puncture needle (2) afterbody of needle stand (1) are connected, endoporus one (11) is provided with along puncture needle (2) length direction in needle stand (1) and puncture needle (2), it is characterized in that: also comprise the needle tubing (4) that cross section is annular, in described needle tubing (4), there is endoporus two (41), and needle tubing (4) head penetrates endoporus one (11) from needle stand (1) afterbody, described nook closing member (3) head penetrates endoporus two (41) from needle tubing (4) afterbody, described puncture needle (2) comprises needle point (21) and needle handle (22), described puncture needle (2) needle handle (22) has multiple notch one (23), described needle tubing (4) offers multiple notch two (42), the endoporus one (11) that described needle stand (1) is corresponding is provided with the cannelure (12) arranged along puncture needle (2) length direction, needle tubing (4) outer wall is provided with ring block (43), and described ring block (43) is located at, and cannelure (12) is interior also can slide along puncture needle (2) length direction, spring (5) is provided with between described cannelure (12) one end and ring block (43), described nook closing member (3) afterbody and needle tubing (4) afterbody are respectively equipped with protruding one (31) and protruding two (44), described projection one (31) is resisted against on protruding two (44), and by squeeze towards puncture needle (2) cephalad direction by or release projection two (44) make the extruding of described ring block (43) or trip spring (5), and make described notch one (23) misplace with notch two (42) or be communicated with.
2. a kind of medical puncture needle according to claim 1, is characterized in that: described notch one (23) and notch two (42) are for circular and circumferential edge is all in cutting edge shape.
3. a kind of medical puncture needle according to claim 2, it is characterized in that: described puncture needle (2) head is provided with gear along (24) on endoporus one (11), and described nook closing member (3) seamlessly can be fitted in gear on (24) inner face.
4. a kind of medical puncture needle according to claim 3, it is characterized in that: when release projection two (44), described ring block (43) is resisted against one end of cannelure (12), and now described nook closing member (3) head is concordant with puncture needle (2) head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510412711.4A CN104905824A (en) | 2015-07-13 | 2015-07-13 | Medical puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510412711.4A CN104905824A (en) | 2015-07-13 | 2015-07-13 | Medical puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104905824A true CN104905824A (en) | 2015-09-16 |
Family
ID=54075572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510412711.4A Pending CN104905824A (en) | 2015-07-13 | 2015-07-13 | Medical puncture needle |
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| Country | Link |
|---|---|
| CN (1) | CN104905824A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5334159A (en) * | 1992-03-30 | 1994-08-02 | Symbiosis Corporation | Thoracentesis needle assembly utilizing check valve |
| CN2244911Y (en) * | 1995-12-22 | 1997-01-15 | 杨天德 | Suction and cutting needle for percutaneous biopsy of lung |
| CN201861672U (en) * | 2010-11-25 | 2011-06-15 | 曾绍文 | Sampling injector for biopsy |
| GB2482336A (en) * | 2010-07-30 | 2012-02-01 | Colin George Ferrett | Device for sampling material from a body cavity |
| CN203263504U (en) * | 2013-05-20 | 2013-11-06 | 彭慧群 | Puncture needle with negative pressure sucker |
| CN204207820U (en) * | 2014-09-23 | 2015-03-18 | 中国人民解放军第三军医大学第一附属医院 | With the percutaneous kidney operation puncturing pin of biopsy function |
| CN204839587U (en) * | 2015-07-13 | 2015-12-09 | 于巧媛 | Medical pjncture needle |
-
2015
- 2015-07-13 CN CN201510412711.4A patent/CN104905824A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5334159A (en) * | 1992-03-30 | 1994-08-02 | Symbiosis Corporation | Thoracentesis needle assembly utilizing check valve |
| CN2244911Y (en) * | 1995-12-22 | 1997-01-15 | 杨天德 | Suction and cutting needle for percutaneous biopsy of lung |
| GB2482336A (en) * | 2010-07-30 | 2012-02-01 | Colin George Ferrett | Device for sampling material from a body cavity |
| CN201861672U (en) * | 2010-11-25 | 2011-06-15 | 曾绍文 | Sampling injector for biopsy |
| CN203263504U (en) * | 2013-05-20 | 2013-11-06 | 彭慧群 | Puncture needle with negative pressure sucker |
| CN204207820U (en) * | 2014-09-23 | 2015-03-18 | 中国人民解放军第三军医大学第一附属医院 | With the percutaneous kidney operation puncturing pin of biopsy function |
| CN204839587U (en) * | 2015-07-13 | 2015-12-09 | 于巧媛 | Medical pjncture needle |
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Application publication date: 20150916 |