CN209678565U - A kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue - Google Patents
A kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue Download PDFInfo
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- CN209678565U CN209678565U CN201822012208.1U CN201822012208U CN209678565U CN 209678565 U CN209678565 U CN 209678565U CN 201822012208 U CN201822012208 U CN 201822012208U CN 209678565 U CN209678565 U CN 209678565U
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Abstract
The utility model relates to a kind of biopsy needles for being exclusively used in extracting cerebral tissue change's tissue, belong to the field of medical instrument technology, the biopsy needle for being exclusively used in extracting cerebral tissue change's tissue includes outer tube and the inner tube in rotation grafting outside pipe, the front end of inner and outer tubes is all closed and rear end penetrates through, outer tube front end side tube wall, which is equipped with, passes through slot, inner tube front end side tube wall is equipped with and is aligned the cutting groove for being connected with rotary-cut and collecting pathological tissues by slot cooperation, inner tube rear end is additionally provided with the negative pressure generator for generating negative-pressure sucking at cutting groove, using the structure, when use, make outer tube insertion encephalic reach lesion by slot, the cutting groove alignment of inner tube generates negative-pressure sucking by making after slot by negative pressure generator at cutting groove, to which pathological tissues be sucked in cutting groove, rotating inner tube makes pathological tissues under the cell wall rotary-cut of cutting groove and stores up There are in cutting groove, the simple operations of the utility model structure are easy, and the mode of rotary-cut ensure that the integrality of tissue, be conducive to pathological diagnosis.
Description
Technical field
The utility model belongs to the field of medical instrument technology, in particular to a kind of to be exclusively used in extracting cerebral tissue change's tissue
Biopsy needle.
Background technique
Cerebral tissue change's biopsy is the important means made a definite diagnosis brain lesions property, determine therapeutic scheme, since brain tissue is
One of the most abundant organ of human body blood supply causes cerebral hemorrhage to be biopsy hand so how to avoid damage to the cerebrovascular in biopsy procedure
The key of art, wherein the puncture mode and materials mode of biopsy needle are important factor in order.
Existing Brain Biopsy needle is generally by the way of spring wire rotary-cut, but there is materials for spring wire rotary-cut method
Less, the shortcomings that tissue extracted is easily broken, influences subsequent detection, and in addition there are also the biopsy needles using vacuum suction cutting, but
That structure is more complex, be unfavorable in operation it is flexibly fast use, be also easy to puncture the cerebrovascular and cause cerebral hemorrhage, cause secondary wound to patient
Evil.
Then, a kind of simple, the convenient and practical biopsy needle for being exclusively used in extracting cerebral tissue change's tissue of structure urgently occurs.
Utility model content
The utility model provides a kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue, to solve in the prior art
Brain Biopsy needle construction is complicated, and safety is low, technical problem not easy to operate.
The utility model is achieved through the following technical solutions: a kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue,
Including the inner tube that outer tube and rotation are plugged in the outer tube, the front end of said inner tube and the outer tube is all closed and rear end is passed through
Logical, outer tube front end side tube wall is equipped with through slot, and said inner tube front end side tube wall is equipped with described through slot cooperation pair
The neat cutting groove be connected with rotary-cut and collect pathological tissues, said inner tube rear end are additionally provided with negative for generating at the cutting groove
Press the negative pressure generator of suction.
It further, further include upper pipe sleeve and lower pipe sleeve in order to preferably realize the utility model, the upper pipe sleeve is arranged
Between the negative pressure generator and said inner tube, the lower pipe sleeve is set in the rear end of the outer tube, the lower pipe sleeve rear end
It is provided with sealing hole, the upper pipe sleeve front end is equipped with the seal head with sealing hole cooperation sealing, and the seal head rotation is inserted
It connects and is sealing the annular space between said inner tube and the outer tube in the sealing hole.
Further, in order to preferably realize the utility model, the inner hole of the upper pipe sleeve front end is inner tube mounting hole, institute
The inner hole for stating pipe sleeve rear end is connecting hole, and said inner tube is inserted in said inner tube mounting hole, and the negative pressure generator is inserted in institute
It states in connecting hole, the seal head is annular plug, and the inner hole of the seal head is isometrical with said inner tube mounting hole and is connected to.
Further, in order to which the utility model is better achieved, the inner hole of the lower pipe sleeve front end is outer tube mounting hole, institute
The inner hole for stating lower pipe sleeve rear end is the sealing hole, and the rear end of the outer tube is inserted in the outer tube mounting hole.
Further, in order to which the utility model is better achieved, the seal head outer wall is equipped with sealant semi-flexible.
Further, in order to be better achieved the utility model, the upper tube is put on equipped with the first labeled slots, and described first
Labeled slots are aligned before and after said inner tube length direction and the cutting groove.
Further, in order to be better achieved the utility model, the down tube is put on equipped with the second labeled slots, and described second
Labeled slots are along the outer tube length direction with described by being aligned before and after slot.
Further, in order to be better achieved the utility model, in first labeled slots and second labeled slots
Equipped with the color marking body body convenient for observation.
Further, in order to be better achieved the utility model, described by slot is along outer tube wall in 80 °~100 °
Curved opening, it is in 85 °~95 ° of curved opening that the cutting groove, which is along inner pipe wall, and the curved opening of the cutting groove is small
In the curved opening by slot.
Further, in order to which the utility model is better achieved, the negative pressure generator is syringe or sacculus.
The utility model has the advantages that compared to the prior art
The biopsy needle provided by the utility model for being exclusively used in extracting cerebral tissue change's tissue, including outer tube and rotation are plugged on
The front end of inner tube in outer tube, inner and outer tubes is all closed and rear end penetrates through, and outer tube front end side tube wall is equipped with through slot, interior
Pipe front end side tube wall is equipped with and is aligned the cutting groove for being connected with rotary-cut and collecting pathological tissues by slot cooperation, and inner tube rear end is also
Equipped with the negative pressure generator for generating negative-pressure sucking at cutting groove, using the structure, in use, outer tube insertion encephalic is made
Lesion is reached by slot, the cutting groove alignment of inner tube generates negative-pressure sucking by making after slot by negative pressure generator at cutting groove,
To suck pathological tissues in cutting groove, rotating inner tube makes pathological tissues under the cell wall rotary-cut of cutting groove and is stored in cutting groove
Interior, the utility model structure is simple, easy to operate, and the mode of rotary-cut guarantees the integrality of tissue, is conducive to pathological diagnosis, so that
The practicability of the utility model is stronger.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the biopsy needle for being exclusively used in extracting cerebral tissue change's tissue in the utility model；
Fig. 2 is the cross-sectional view of the biopsy needle for being exclusively used in extracting cerebral tissue change's tissue in the utility model；
Fig. 3 is the schematic diagram of upper pipe sleeve and the sealing of lower pipe sleeve in the utility model；
Fig. 4 is the schematic diagram of upper pipe sleeve and inner tube in the utility model；
Fig. 5 is the schematic diagram of lower pipe sleeve and outer tube in the utility model.
In figure:
1- outer tube；11- passes through slot；2- inner tube；21- cutting groove；3- negative pressure generator；The upper pipe sleeve of 4-；41- seal head；42-
Inner tube mounting hole；43- connecting hole；The first labeled slots of 44-；Pipe sleeve under 5-；51- sealing hole；52- outer tube mounting hole；53- second is marked
Remember slot；6- annular convex platform；7- sealant semi-flexible.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
Embodiment 1:
In the present embodiment, a kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue, as depicted in figs. 1 and 2, including it is outer
The front end of the inner tube 2 that pipe 1 and rotation are plugged in above-mentioned outer tube 1, above-mentioned inner tube 2 and above-mentioned outer tube 1 is all closed and rear end penetrates through,
Above-mentioned 1 front end side tube wall of outer tube is equipped with through slot 11, above-mentioned 2 front end side wall of inner tube be equipped with above by the cooperation pair of slot 11
With rotary-cut and the cutting grooves 21 of pathological tissues is collected together, above-mentioned 2 rear end of inner tube is additionally provided with for generating at above-mentioned cutting groove 21
The negative pressure generator 3 of negative-pressure sucking, using the structure, in use, above-mentioned outer tube 1 insertion encephalic is made to reach above by slot 11
Lesion, the alignment of cutting groove 21 of above-mentioned inner tube 2 make to generate at cutting groove 21 above by above-mentioned negative pressure generator 3 is passed through after slot 11
Negative-pressure sucking, so that pathological tissues be sucked in above-mentioned cutting groove 21, rotating above-mentioned inner tube 2 makes under the cell wall rotary-cut of cutting groove 21
Pathological tissues are simultaneously stored in above-mentioned cutting groove 21, and the utility model structure is simple, and easy to operate, the mode of rotary-cut guarantees tissue
Integrality, be conducive to pathological diagnosis, so that the practicability of the utility model is stronger.
It is worth noting that, as shown in Figure 1 and Figure 5, above-mentioned 1 front end of outer tube is round blunt, the head of round blunt in the present embodiment
Portion's structure can avoid damaging the cerebrovascular during above-mentioned outer tube 1 is inserted into encephalic, improve the safety of the utility model.
As a kind of specific embodiment of the present embodiment, above by slot 11 be along above-mentioned 1 tube wall of outer tube in 80 °~
100 ° of curved opening, above-mentioned cutting groove 21 be in 85 °~95 ° of curved opening along above-mentioned 2 tube wall of inner tube, and above-mentioned cutting groove
21 curved opening is less than the curved opening above by slot 11, makes lesion combination can be biggish above by slot from opening angle
It is inhaled at 11 in above-mentioned cutting groove 21, rotating above-mentioned inner tube 2 is screwed into the opening of above-mentioned cutting groove 21 gradually outside above-mentioned
The inside of pipe 1, to complete the cutting to pathological tissues, notch is neat and minimally invasive, mitigates the pain of patient, preferably, on
Inner tube 2 diameter about 1.6mm, length 190mm, above-mentioned 1 diameter of outer tube about 2.5mm, length 195mm are stated, above by slot 11 and upper
The length that cutting groove 21 is stated along axial direction living is 10mm.
In the present embodiment, above-mentioned negative pressure generator 3 selects syringe or sacculus.
Embodiment 2:
The present embodiment advanced optimizes on the basis of embodiment 1, in the present embodiment, as shown in Fig. 2, further including upper tube
Set 4 and lower pipe sleeve 5, specifically, above-mentioned upper pipe sleeve 4 is set between above-mentioned negative pressure generator 3 and above-mentioned inner tube 2, above-mentioned down tube
Set 5 is set in above-mentioned 1 rear end of outer tube, and above-mentioned lower 5 rear end of pipe sleeve is provided with sealing hole 51, above-mentioned upper 4 front end of pipe sleeve be equipped with it is upper
The seal head 41 of the cooperation sealing of sealing hole 51 is stated, so that the rotation of above-mentioned seal head 41 is plugged in above-mentioned sealing hole 51 to seal
Annular distance between above-mentioned inner tube 2 and above-mentioned outer tube 1, and then guarantee there is enough suction to generate at above-mentioned cutting groove 21, without
Pressure release in the annular distance between outer tube 1 and inner tube 2 causes cutting to fail.
As a kind of specific embodiment of the present embodiment, above-mentioned seal head 41 and above-mentioned upper pipe sleeve 4 are integrally formed, convenient
Processing, and wrapped up on 41 outer wall of above-mentioned seal head and set and be bonded with sealant 7 semi-flexible, sealant 7 semi-flexible when being rotatably assorted
Flexibility is filled between 51 inner wall of above-mentioned 41 outer wall of seal head and above-mentioned sealing hole, is improved its gas tightness, is further ensured that
It will not pressure release from annular distance between outer tube 1 and inner tube 2 when cutting.Wherein, above-mentioned 7 material of sealant semi-flexible can be selected
EPDM or TPE.
As shown in Figure 3 and Figure 4, the inner hole of above-mentioned 4 front end of upper pipe sleeve is inner tube mounting hole 42, thus by after above-mentioned inner tube 2
End is plugged in above-mentioned inner tube mounting hole 42, and the inner hole of above-mentioned upper 4 rear end of pipe sleeve is connecting hole 43, by above-mentioned negative pressure generator 3
It is plugged in above-mentioned connecting hole 43, makes to form access between above-mentioned negative pressure generator 3 and said inner tube 2, it should be noted that on
Stating seal head 41 is annular plug, and the inner hole of above-mentioned seal head 41 is isometrical with above-mentioned inner tube mounting hole 42 and is connected to.
As shown in Figure 3 and Figure 5, the inner hole of above-mentioned 5 front end of lower pipe sleeve is outer tube mounting hole 52, thus by above-mentioned outer tube 1
Rear end is plugged in above-mentioned outer tube mounting hole 52, and the inner hole of above-mentioned lower 5 rear end of pipe sleeve is above-mentioned sealing hole 51.In the present embodiment,
The connection side between connection type and above-mentioned outer tube 1 and outer tube mounting hole 52 between above-mentioned inner tube 2 and inner tube mounting hole 42
Formula can be used interference fit grafting, thread seal connection or other modes that are sealedly and fixedly connected, and be bonded on joint face
There are viscose glue, preferably anaerobic adhesive, further increases leakproofness.
As a kind of more excellent embodiment of the present embodiment, above-mentioned seal head 41 can be selected socket cap, conical head or other
Rotary structure, corresponding above-mentioned sealing hole 51 can also select cylindrical hole, bellmouth or other revolving body pass structures, as
It is preferred that above-mentioned seal head 41 is conical head in the present embodiment, above-mentioned sealing hole 51 is bellmouth.
As shown in figure 3, the open end of above-mentioned bellmouth is provided on the rear end face of above-mentioned lower pipe sleeve 5, above-mentioned bellmouth
Serrated end is connected to above-mentioned outer tube mounting hole 52, and the serrated end aperture of above-mentioned bellmouth is less than the hole of above-mentioned outer tube mounting hole 52
Diameter, so that the bottom hole in above-mentioned outer tube mounting hole 52 forms a circle step surface, when installing outer tube 1, the rear end face of above-mentioned outer tube 1 is supported
It connects on step surface with limit.
As shown in figure 3, the aperture of above-mentioned connecting hole 43 is less than the aperture of above-mentioned inner tube mounting hole 42, thus in above-mentioned inner tube
The bottom hole of mounting hole 42 also forms a circle step surface, is connected to the rear end face of above-mentioned inner tube 2 on the step surface to limit.
It is worth noting that, as shown in Figure 4 and Figure 5, the rear end face of above-mentioned lower pipe sleeve 5 and the rear end face of above-mentioned upper pipe sleeve 4
On outward it is extended have an annular convex platform 6, make the lower end surface of above-mentioned upper pipe sleeve 4 and the upper surface of lower pipe sleeve 5 and upper pipe sleeve 4
Upper surface and the lower end surface of negative pressure generator 3 between be spaced apart, reduce rotary-cut when frictional force, facilitate operation.
Embodiment 3:
The present embodiment advanced optimizes on the basis of embodiment 2, in the present embodiment, as shown in Figure 1, further including first
Labeled slots 44, above-mentioned first labeled slots 44 are arranged on the outer wall of above-mentioned upper pipe sleeve 4, and above-mentioned first labeled slots 44 are along above-mentioned
It is aligned before and after the length direction of inner tube 2 and above-mentioned cutting groove 21, it is then, above-mentioned by observing when above-mentioned inner tube 2 is located at encephalic
The direction of first labeled slots 44, it is known that the opening direction of the cutting groove 21 of 2 front end of inner tube.
It further, further include the second labeled slots 53, the outer wall of above-mentioned lower pipe sleeve 5 is arranged in above-mentioned second labeled slots 53
On, and above-mentioned second labeled slots 53 along above-mentioned outer tube 1 length direction with above by being aligned before and after slot 11, then, when upper
When stating outer tube 1 and being located at encephalic, by observing the direction of above-mentioned second labeled slots 53, it is known that 1 front end of outer tube passes through slot 11
Opening direction.When operation, rotating above-mentioned upper pipe sleeve 4 makes the first labeled slots 44 and the second labeled slots 53 front and back in the longitudinal direction
Alignment, illustrates to be overlapped and be aligned in encephalic above by the opening direction of the opening direction of slot 11 and cutting groove 21 at this time, convenient
Doctor understands biopsy needle and after applying negative pressure, rotates above-mentioned upper pipe sleeve to carry out the rotary-cut operation of next step in the state of encephalic
4180 °, rotary-cut is completed.
In the present embodiment, color marking body is equipped in above-mentioned first labeled slots 44 and above-mentioned second labeled slots 53, it is convenient
Doctor's observation.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (10)
1. a kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue, it is characterised in that: be plugged on institute including outer tube and rotation
State the inner tube in outer tube, the front end of said inner tube and the outer tube is all closed and rear end penetrates through, outer tube front end side tube wall
It is equipped with through slot, said inner tube front end side tube wall is equipped with to be aligned conducting by slot cooperation with rotary-cut and collect lesion with described
The cutting groove of tissue, said inner tube rear end are additionally provided with the negative pressure generator for generating negative-pressure sucking at the cutting groove.
2. a kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue according to claim 1, it is characterised in that: also wrap
Pipe sleeve and lower pipe sleeve are included, the upper pipe sleeve is set between the negative pressure generator and said inner tube, and the lower pipe sleeve is arranged
In the rear end of the outer tube, the lower pipe sleeve rear end is provided with sealing hole, and the upper pipe sleeve front end is equipped with matches with the sealing hole
The seal head of sealing is closed, the seal head rotation is plugged in the sealing hole to seal between said inner tube and the outer tube
Annular space.
3. a kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue according to claim 2, it is characterised in that: described
The inner hole of upper pipe sleeve front end is inner tube mounting hole, and the inner hole of the upper pipe sleeve rear end is connecting hole, and said inner tube is inserted in described
In pipe mounting hole, the negative pressure generator is inserted in the connecting hole, the seal head be annular plug, the seal head it is interior
Hole is isometrical with said inner tube mounting hole and is connected to.
4. a kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue according to claim 3, it is characterised in that: described
The inner hole of lower pipe sleeve front end is outer tube mounting hole, and the inner hole of the lower pipe sleeve rear end is the sealing hole, the rear end of the outer tube
It is inserted in the outer tube mounting hole.
5. a kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue, special according to any one of claim 2-4
Sign is: the seal head outer wall is equipped with sealant semi-flexible.
6. a kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue according to claim 2, it is characterised in that: described
Upper tube is put on equipped with the first labeled slots, and first labeled slots are aligned before and after said inner tube length direction and the cutting groove.
7. a kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue according to claim 6, it is characterised in that: described
Down tube is put on equipped with the second labeled slots, and second labeled slots are along the outer tube length direction with described by being aligned before and after slot.
8. a kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue according to claim 7, it is characterised in that: described
The color marking body body convenient for observation is equipped in first labeled slots and second labeled slots.
9. a kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue according to claim 1, it is characterised in that: described
Being by slot is in 80 °~100 ° of curved opening along outer tube wall, and it is in 85 °~95 ° of arc that the cutting groove, which is along inner pipe wall,
Shape opening, and the curved opening of the cutting groove is less than the curved opening by slot.
10. a kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue according to claim 1, it is characterised in that: institute
Stating negative pressure generator is syringe or sacculus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822012208.1U CN209678565U (en) | 2018-12-03 | 2018-12-03 | A kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822012208.1U CN209678565U (en) | 2018-12-03 | 2018-12-03 | A kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue |
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| Publication Number | Publication Date |
|---|---|
| CN209678565U true CN209678565U (en) | 2019-11-26 |
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ID=68595446
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822012208.1U Active CN209678565U (en) | 2018-12-03 | 2018-12-03 | A kind of biopsy needle for being exclusively used in extracting cerebral tissue change's tissue |
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| CN (1) | CN209678565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114098838A (en) * | 2021-11-12 | 2022-03-01 | 北京中研智创新技术研究院有限公司 | Directionally-bendable biopsy needle kit for extracting brain tissue lesion |
-
2018
- 2018-12-03 CN CN201822012208.1U patent/CN209678565U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114098838A (en) * | 2021-11-12 | 2022-03-01 | 北京中研智创新技术研究院有限公司 | Directionally-bendable biopsy needle kit for extracting brain tissue lesion |
| CN114098838B (en) * | 2021-11-12 | 2022-05-31 | 北京中研智创新技术研究院有限公司 | Directionally-bendable biopsy needle kit for extracting brain tissue lesion |
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