CN209644959U - A kind of prostate biopsy puncture needle - Google Patents
A kind of prostate biopsy puncture needle Download PDFInfo
- Publication number
- CN209644959U CN209644959U CN201920101226.9U CN201920101226U CN209644959U CN 209644959 U CN209644959 U CN 209644959U CN 201920101226 U CN201920101226 U CN 201920101226U CN 209644959 U CN209644959 U CN 209644959U
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- syringe
- sleeve
- needle
- needle point
- push rod
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Abstract
The utility model discloses a kind of prostate biopsy puncture needles, including needle core, syringe, the sleeve being set on the outside of syringe, the top of needle core chamfers to form the first needle point, sampling groove is offered on needle core, syringe can be set in the outside of needle core, syringe chamfers to form the second needle point close to one end of the first needle point, syringe is connected with push rod far from one end of the second needle point, the jack of connection syringe is provided with through push rod, sleeve offers through-hole close to one end of the second needle point, it cuts downwards and forms notch in sleeve openings end, notch is provided with the clamp bar tilted slightly outwards, the edge at sleeve openings end, which extends radially outwardly, is provided with gripping block, sleeve periphery is provided with external screw thread to far from opening direction close to clamp bar, sleeve is threaded with adjusting ring by external screw thread, reset spring is provided between sleeve bottom and push rod.When not by external force, syringe is taken in sleeve completely, and puncture needle needle point can be effectively prevent to accidentally injure to other tissues of patient and the finger of doctor.
Description
Technical field
The utility model relates to the field of medical instrument technology, in particular to a kind of prostate biopsy puncture needle.
Background technique
Prostate cancer is a kind of serious prostatic disorders, and aspiration biopsy of prostatic gland is the important hand of diagnosis of prostate cancer
Section, aspiration biopsy of prostatic gland mainly have finger prostate guided Biopsy biopsy and ultrasound guidance per rectum or Perineal approach
Prostate systemic biopsy.When using the aspiration biopsy of finger prostate guided, since doctor cannot be directly viewed puncture
Position needs to be gone that puncture needle is driven to look for point of puncture with hand, the needle point of puncture needle is easy to cause to accidentally injure other tissues to patient,
It is also possible to accidentally injuring the finger to doctor when needle point and doctor's finger contact.
Utility model content
The purpose of the utility model is to provide a kind of prostate biopsy puncture needles, and puncture needle needle point can be effectively prevent to accidentally injure
To other tissues of patient and the finger of doctor.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of prostate biopsy is worn
Pricker, including needle core, syringe, the sleeve being set on the outside of syringe, the top of the needle core chamfers to form the first needle point, the needle
Sampling groove is offered on core, the sampling groove is provided with to what is extended far from first needle point one end close to one end of the first needle point
Hook；The syringe can be set in the outside of needle core, and the syringe chamfers to form the second needle point close to one end of the first needle point, described
Syringe is connected with push rod far from one end of the second needle point, and the jack of connection syringe is provided with through the push rod；In the sleeve
Empty and open at one end far from the first needle point, the sleeve offers the through-hole passed through for syringe close to one end of the second needle point,
The sleeve openings end, which is cut downwards, forms notch, and the notch is provided with the clamp bar tilted slightly outwards, the clamp bar inside
One end far from through-hole is provided with rubber fixture block, and the edge at the sleeve openings end, which extends radially outwardly, is provided with gripping block, institute
It states sleeve periphery and is provided with external screw thread to far from opening direction close to clamp bar, the sleeve is threaded with adjusting by external screw thread
Ring；Reset spring is provided between the sleeve bottom and push rod, the back-moving spring overcoat is in the periphery of syringe, not by external force
When effect, due to the effect of the reset spring, the syringe is taken in sleeve completely.
By using above-mentioned technical proposal, when carrying out prostate biopsy puncture, forefront is found by finger guidance first
The puncture position of gland is directed at puncture position with sleeve, and one hand cooperation holds block and pushes push rod, passes through syringe before through-hole is inserted into
Column glandular tissue turns adjusting ring to close to the one end for holding block, makes clamp bar close to push rod when syringe is inserted into certain depth,
Rubber fixture block is close to push rod, fix push rod make its no longer can free movement, by needle core by being penetrated after perforation, jack and syringe
To prostata tissue, sampling groove is made to enter prostata tissue, needle core of then reversely pulling back hooks up the barb on needle core on a small quantity
In living tissue to sampling groove, needle core is taken out finally by syringe, jack and perforation, obtains the living tissue in sampling groove；It returns
Cylinder of helping pull a cart turns adjusting ring to far from the one end for holding block, makes rubber fixture block no longer gripping push rods by syringe from human body extraction,
Push rod is finally recovered to syringe in sleeve due to the action of reset spring.
The utility model is further arranged to: the internal diameter of the internal diameter of the syringe, the internal diameter of jack and through-hole is equal to institute
State the outer diameter of needle core.
By using above-mentioned technical proposal, when guaranteeing that needle core can be moved along the receptacle axis direction of syringe and push rod not
It can deviate.
The utility model is further arranged to: the internal diameter of the sleeve is equal to the outer diameter of the push rod.
By using above-mentioned technical proposal, not deviated when guaranteeing that push rod can be moved along sleeve axis direction.
The utility model is further arranged to: the needle core is provided with pushing block far from one end of the first needle point.
The utility model is further arranged to: the push rod is provided with push-plate far from one end of syringe, pushes away through described
Disk is provided with the perforation of connection jack.
The utility model is further arranged to: the internal diameter of the perforation is equal to the outer diameter of the needle core.
The utility model is further arranged to: the sleeve is round and smooth setting close to an end margin of the second needle point.
By using above-mentioned technical proposal, other tissues of the too sharp injured patient of sleeve edges are prevented.
In conclusion the utility model has the following beneficial effects: sleeve is arranged with outside one, syringe, and in sleeve
It is provided with reset spring, when not by external force, syringe is taken in sleeve completely, only when external force pushes push rod,
Syringe can be released out of sleeve and carry out puncture procedure when looking for puncture position, be to look for puncture position with the front end of sleeve,
The sharp parts of syringe will not hurt other tissues of patient, and what is directly contacted with doctor's finger is push rod, will not injure
To the finger of doctor；
Secondly, be provided with adjusting ring, after syringe is inserted into tissue certain depth, can by adjust ring fix syringe, make
Syringe will not be retracted into sleeve due to reset spring, and needle core easy to use is sampled operation.
Detailed description of the invention
Fig. 1 is the overall structure diagram of utility model；
Fig. 2 is the overall structure diagram of needle core；
Fig. 3 is used to show the cross-sectional view of syringe and push rod；
Fig. 4 is used to show the cross-sectional view of tube-in-tube structure.
In figure: 1, needle core；11, the first needle point；12, sampling groove；13, barb；14, pushing block；2, syringe；21, the second needle point；
22, push rod；23, jack；24, push-plate；25, it perforates；3, sleeve；31, through-hole；32, notch；33, clamp bar；34, rubber fixture block；
35, block is held；36, external screw thread；4, ring is adjusted；5, reset spring.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment, a kind of prostate biopsy puncture needle, referring to Fig. 2, including needle core 1, the top of needle core 1 chamfers to form the
One needle point 11, offers a sampling groove 12 on needle core 1, and 12 bottom surface of sampling groove is the arcwall face of indent, and sampling groove 12 is close to the
One end of one needle point 11 be provided with to far from 11 one end of the first needle point extend barb 13, needle core 1 far from the first needle point 11 one
End is provided with pushing block 14.
Referring to Fig. 3, it is provided with the syringe 2 that can be set in 1 outside of needle core, syringe 2 is close to one end of the first needle point 11
Beveling forms the second needle point 21, and syringe 2 is connected with a push rod 22 far from one end of the second needle point 21, is arranged through push rod 22
There is the jack 23 of connection syringe 2, push rod 22 is provided with a push-plate 24 far from one end of syringe 2, is arranged through the push-plate 24
There is the perforation 25 of a connection jack 23, the internal diameter of the internal diameter of syringe 2, the internal diameter of jack 23 and perforation 25 is equal to the outer of needle core 1
Diameter.
Referring to Fig.1,4, it is provided with the sleeve 3 for being set in 2 outside of syringe, the internal diameter of sleeve 3 is equal to the outer of push rod 22
Diameter, sleeve 3 is hollow and open at one end far from the first needle point 11, and sleeve 3 is round and smooth set close to an end margin of the second needle point 21
It sets, prevents the other tissues of 3 injured patient of sleeve, sleeve 3 offers one close to one end of the second needle point 21 and passes through for syringe 2
Through-hole 31, the internal diameter of through-hole 31 are equal to the outer diameter of needle core 1；3 open end of sleeve, which is cut downwards, forms two notches being oppositely arranged
32, each notch 32 is provided with the clamp bar tilted slightly outwards 33, each 33 one end of inside far from through-hole 31 of clamp bar
It is provided with one piece of rubber fixture block 34, when clamp bar 33 is inwardly tightened, rubber fixture block 34 clamps push rod 22, prevents push rod 22 from free skating
It is dynamic；The edge of 3 open end of sleeve, which extends radially outwardly, is provided with a gripping block 35, and cooperation push-plate 24 pushes push rod 22, is convenient for
One-handed performance；3 periphery of sleeve is provided with an external screw thread 36 to far from opening direction close to clamp bar 33, and sleeve 3 passes through external screw thread
36 are threaded with an adjusting ring 4；A reset spring 5 is provided between 3 bottom of sleeve and push rod 22, outside reset spring 5
It is placed on the periphery of syringe 2, due to the effect of reset spring 5, when not by external force, syringe 2 is taken in sleeve 3 completely,
It prevents and the second needle point 21 stamp of syringe 2 when human contact to tissue.
Usage mode: when carrying out prostate biopsy puncture, finding the puncture position of prostate by finger guidance first,
It is directed at puncture position with sleeve 3, one hand cooperation holds block 35 and pushes push rod 22, so that syringe 2 is inserted into prostata tissue, work as syringe
2 when being inserted into certain depth, adjusts ring 4 to turning close to the one end for holding block 35, makes clamp bar 33 close to push rod 22, rubber fixture block
34 are close to push rods 22, fix push rod 22 make its no longer can free movement, needle core 1 is passed through into perforation 25, jack 23 and syringe 2
After penetrate into prostata tissue, so that sampling groove 12 is entered prostata tissue, needle core 1 of then reversely pulling back makes on needle core 1
Barb 13 hooks up in a small amount of living tissue to sampling groove 12, takes out needle core 1 finally by syringe 2, jack 23 and perforation 25, obtains
To the living tissue in sampling groove 12；It pulls back sleeve 3, syringe 2 is extracted from human body, turns tune to far from the one end for holding block 35
Ring 4 is saved, the no longer gripping push rods 22 of rubber fixture block 34 are made, push rod 22 finally receives syringe 2 due to the action of reset spring 5
It returns in sleeve 3.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (7)
1. a kind of prostate biopsy puncture needle, including needle core (1), syringe (2), the sleeve (3) being set on the outside of syringe (2),
Be characterized in that: the top of the needle core (1) chamfers to be formed the first needle point (11), offers sampling groove (12) on the needle core (1),
The sampling groove (12) is provided with close to the one end of the first needle point (11) to the barb extended far from the first needle point (11) one end
(13)；The syringe (2) can be set in the outside of needle core (1), and the syringe (2) chamfers shape close to the one end of the first needle point (11)
At the second needle point (21), the syringe (2) is connected with push rod (22) far from the one end of the second needle point (21), runs through the push rod
(22) it is provided with the jack (23) of connection syringe (2)；The sleeve (3) is hollow and open at one end far from the first needle point (11),
The sleeve (3) offers the through-hole (31) passed through for syringe (2) close to the one end of the second needle point (21), and the sleeve (3) is opened
Mouth end, which is cut downwards, to be formed notch (32), and the notch (32) is provided with the clamp bar (33) tilted slightly outwards, the clamp bar
(33) inside is provided with rubber fixture block (34) far from the one end of through-hole (31), and the edge of sleeve (3) open end is radially outward
Being extended has gripping block (35), and sleeve (3) periphery is provided with external screw thread to far from opening direction close to clamp bar (33)
(36), the sleeve (3) is threaded with by external screw thread (36) and adjusts ring (4)；Sleeve (3) bottom and push rod (22) it
Between be provided with reset spring (5), the reset spring (5) is coated at the periphery of syringe (2), not by external force when, by institute
The effect of reset spring (5) is stated, the syringe (2) income completely is in sleeve (3).
2. a kind of prostate biopsy puncture needle according to claim 1, it is characterised in that: the internal diameter of the syringe (2) is inserted
The internal diameter in hole (23) and the internal diameter of through-hole (31) are equal to the outer diameter of the needle core (1).
3. a kind of prostate biopsy puncture needle according to claim 1, it is characterised in that: the internal diameter etc. of the sleeve (3)
Outer diameter in the push rod (22).
4. a kind of prostate biopsy puncture needle according to claim 1, it is characterised in that: the needle core (1) is far from first
One end of needle point (11) is provided with pushing block (14).
5. a kind of prostate biopsy puncture needle according to claim 1, it is characterised in that: the push rod (22) is far from syringe
(2) one end is provided with push-plate (24), and the perforation (25) of connection jack (23) is provided with through the push-plate (24).
6. a kind of prostate biopsy puncture needle according to claim 5, it is characterised in that: the internal diameter etc. of the perforation (25)
Outer diameter in the needle core (1).
7. a kind of prostate biopsy puncture needle according to claim 1, it is characterised in that: the sleeve (3) is close to second
One end margin of needle point (21) is round and smooth setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920101226.9U CN209644959U (en) | 2019-01-22 | 2019-01-22 | A kind of prostate biopsy puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920101226.9U CN209644959U (en) | 2019-01-22 | 2019-01-22 | A kind of prostate biopsy puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209644959U true CN209644959U (en) | 2019-11-19 |
Family
ID=68521898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920101226.9U Active CN209644959U (en) | 2019-01-22 | 2019-01-22 | A kind of prostate biopsy puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209644959U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112674805A (en) * | 2020-12-24 | 2021-04-20 | 中国人民解放军陆军军医大学第一附属医院 | Breast tumor sampler |
| CN113827325A (en) * | 2021-11-29 | 2021-12-24 | 杭州圣轩实业有限公司 | Puncture sampler for oncology department |
-
2019
- 2019-01-22 CN CN201920101226.9U patent/CN209644959U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112674805A (en) * | 2020-12-24 | 2021-04-20 | 中国人民解放军陆军军医大学第一附属医院 | Breast tumor sampler |
| CN112674805B (en) * | 2020-12-24 | 2022-07-26 | 中国人民解放军陆军军医大学第一附属医院 | Breast tumor sampler |
| CN113827325A (en) * | 2021-11-29 | 2021-12-24 | 杭州圣轩实业有限公司 | Puncture sampler for oncology department |
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