CN109223123A - Inject partition-type coaxial sleeve puncture needle - Google Patents
Inject partition-type coaxial sleeve puncture needle Download PDFInfo
- Publication number
- CN109223123A CN109223123A CN201810923895.4A CN201810923895A CN109223123A CN 109223123 A CN109223123 A CN 109223123A CN 201810923895 A CN201810923895 A CN 201810923895A CN 109223123 A CN109223123 A CN 109223123A
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- cover plate
- puncture needle
- puncture
- needle
- lower cover
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3419—Sealing means between cannula and body
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A kind of injection partition-type coaxial sleeve puncture needle, it is characterized by comprising puncture needles and syringe outer housing (2), syringe outer housing (2) is square cylinder, syringe outer housing (2) upper and lower ends are sealedly connected with upper cover plate (5) and lower cover plate (8) respectively, coaxial inner sleeve (3) is arranged between upper cover plate (5) and lower cover plate (8), which is provided with several through-holes (30).The present invention provides a kind of novel by injection liquid and extraneous partition-type co-axial technique trochar.The present invention utilizes the principle of horizontal plane, adds angle measurement mark, is capable of the needle angle of ingenious display all directions, accurately provides direction to puncture inserting needle, it will greatly improve puncture accuracy.
Description
Technical field
The present invention relates to the field of medical instrument technology, and in particular to a kind of provide can be with the external world after a kind of novel injection liquid
The co-axial technique trochar of partition.
Background technique
Recently as medical industry towards precision medical treatment, the direction for refining treatment continues to develop, is lived by puncturing
Seize and take tissue, with obtain pathology according to and genetic test result have become clinical treatment it is most important, most strong according to
According to.In addition, carrying out direct physiotherapy to lesion, (such as radio frequency, microwave, argon helium knife place radion by puncture technique
Deng) also more and more widely applied by clinic.Therefore, piercing method and puncture instrument are particularly important in puncture technique.
Puncture technique is widely used in the world as a kind of minimal invasive techniques.The existing coaxial sleeve needle of puncturing is
It being made of needle tubing and needle core two parts, when puncture is integrated needle core threading and after having screw thread to tighten to be punctured, when
Needle point retains casing extraction needle core after reaching scheduled position, then using casing as channel, corresponding instrument is penetrated in casing such as
Biopsy needle, radio frequency, microwave, argon helium knife ablation needle, and the needle tubing etc. of placement radion are operated.And due to retaining
The channel that is formed of coaxial puncture needle casing, operation can operate repeatedly through this.
By finding in actual operation, when extracting needle core or the corresponding instrument of other operations out of casing to again insertable into needle
In the off time of core or the corresponding instrument of other operations, coaxial sleeve is just directly communicated with outside air, and this adds increased punctures
Deep wound is caused the chance of infection by the pollution of air；Nearly pleural cavity is being punctured (such as the lesion or pleura disease close to pleura
Become and puncture), imbedibility pneumothorax can be led to because of the negative pressure of pleural cavity when extracting needle core；It especially may when puncturing some lesions
Because of the presence of internal and external pressure difference, such as outside air is caused air embolism because of negative pressure sucking vein (such as pulmonary vein) seriously simultaneously
Send out disease and its fatefulue consequence.
In addition, puncturing laterally longitudinal needle angle direction in puncture process is also the crucial institute for determining to puncture accuracy
?.Before this, many experts have use up many effort to this in this respect.Therefore it provides safe and reliable in a kind of structure coaxially wear
Pricker can either avoid the risk occurred in puncture, and can greatly improve puncture accuracy, it has also become this field is urgently to be resolved
Significant problem.
Summary of the invention
In order to solve deficiency present in existing instrument, the present invention provide a kind of novel injection liquid (such as physiological saline) with
Extraneous partition-type co-axial technique trochar.In addition, the present invention also utilizes the principle of horizontal plane, angle measurement mark is added, it can
The needle angle of ingenious display all directions, accurately provides direction to puncture inserting needle, it will greatly improve puncture accuracy.
To achieve the above object, the invention provides the following technical scheme:
A kind of injection partition-type coaxial sleeve puncture needle, including puncture needle and syringe outer housing (2), syringe outer housing (2)
For rectangular (or round) cylinder, syringe outer housing (2) upper and lower ends are sealedly connected with upper cover plate (5) and lower cover plate (8) respectively, together
Axis inner sleeve (3) is arranged between upper cover plate (5) and lower cover plate (8), which is provided with several through-holes (30)；Spiral shell on upper cover plate (5)
Line connecting puncture needle inducting device (4), puncture needle inducting device (4) are threadedly coupled on lower cover plate (8) for connecting syringe and puncture set
Pipe fixing seat (9), between upper cover plate (5) and puncture needle inducting device (4) be equipped with a gasket seal (6), lower cover plate (8) with wear
It pierces and is equipped with another gasket seal (6) between casing fixing seat (9)；Puncture needle sequentially pass through puncture needle inducting device (4), one it is close
Gasket (6), coaxial inner sleeve (3), another gasket seal (6) and puncture cannula fixing seat (9).
The puncture needle includes puncture needle needle core (1), puncture needle fixed column (10) and puncture needle knob (11)；Puncture needle needle
Core (1) upper end is fixedly connected with puncture needle fixed column (10), puncture needle fixed column (10) and puncture needle knob (11) fixed company
It connects, puncture needle knob (11) outer wall is equipped with the anti-skidding muscle of knob (13) of protrusion, and puncture needle knob (11) inner wall is equipped with spiral shell in knob
Line (12).
Described its surface of syringe outer housing (2) is equipped with fluid level scale (24) and angle measuring calibration (25), angle measuring calibration (25) packet
Include the 5 degree of graduation marks (26) and 360 1 degree of graduation marks (27) being arranged every 1 degree that 72 are arranged every 5 degree.
The puncture needle inducting device (4) is cylinder, and middle part outer wall is equipped with upper cover plate connection external screw thread (40), upper part
External screw thread (41) are connected equipped with needle core；It is convex that puncture needle inducting device (4) lower part is equipped with the lower sealing being tightly connected with gasket seal (6)
Platform (43), internal puncture needle inducting device (4) is inner cone guide hole (42) structure.
The upper cover plate (5) be it is rectangular, upper cover plate (5) is equipped with the upper cover plate connecting tube (50) that projects upwards；Upper cover plate
(5) the upper cover plate gasket seal fixing groove (51) of fixing seal gasket (6) is additionally provided on.
The gasket seal (6) is circle, and in-between position is pierceable membrane piece (60), and edge is that annular outstanding is close
Seal (61), pierceable membrane piece (60) are structure as a whole with ring type seal (61), and material is medical silica-gel or medical grade rubber.
The lower cover plate (8) be it is rectangular, lower cover plate (8) be equipped with downward projection of lower cover plate connecting tube (80), lower cover plate
(8) the lower cover plate gasket seal fixing groove (81) of fixing seal gasket (6) is additionally provided on.
The puncture cannula fixing seat (9) includes internal taper hole (90), upper seal boss (91), puncture cannula (92), anti-skidding
Stupefied (93) connect external screw thread (94) with lower cover plate, and puncture cannula fixing seat (9) is cylinder, are internally provided with internal taper hole (90),
Puncture cannula fixing seat (9) lower part, which is equipped with, to be connected with internal taper hole (90), puncture cannula (92) with internal taper hole (90), punctures set
Pipe fixing seat (9) outer wall is equipped with anti-skidding stupefied (93) and connects with lower cover plate external screw thread (94), and puncture cannula fixing seat (9) top is equipped with
The upper seal boss (91) being tightly connected with gasket seal (6).
Have compared with existing tip puncture needle it is following the utility model has the advantages that
It is punctured first, needle core is entered coaxial sleeve across band sap cavity when puncturing, because of needle after extraction puncture needle needle core
The presence of water in cylinder tank body outer housing, needle tubing are isolated automatically, without time slot with the external world；The chance of infection is reduced, especially
It can prevent because negative pressure suck vein (such as pulmonary vein) due to cause air embolism such as severe complication and its it is fatefulue after
Fruit.
Second, fixing puncture needle casing after reaching target site using puncture needle of the invention, puncture needle needle is taken out
Core is packed into corresponding instrument such as biopsy needle, radio frequency needle, microwave needle, radion needle tubing etc. in puncture needle casing and carries out related hand
Art operation.If you need to the operation operated repeatedly, then it can retain the puncture needle casing penetrated or slightly change position and direction, then pass through
The channel of puncture needle casing continues, the damage and risk for avoiding many places from puncturing repeatedly, and operative site in the whole process
Always it is isolated from the outside；
Third, operation in such as due in the outer housing of water storage water through needle core and associated surgical instrument needle by being pierced
Broken, liquid can be flowed out on a small quantity and be reduced therebetween, but not influence its isolation effect.If once discovery outer housing internal liquid is fast
Speed outflow, liquid capacity are quickly reduced, then often indicate that the presence of inside and outside differential pressure, height prompt have the possibility for penetrating vein, this
When should the press...with one's finger immediately upper opening of puncture needle inducting device closed, extract the casing from human body.
Fourth, due to the presence of water in syringe water storage outer housing, can when pulling out needle by pleural cavity avoid it is common because
Imbedibility pneumothorax caused by negative pressure can also be substantially reduced the pneumothorax incidence of Pleural Lesions or adjacent lesion puncture.
Fifth, due to the present invention on syringe water storage outer housing angled mark and syringe water storage outer housing inner horizontal
Presence, the angle of the present invention in all directions is explicitly shown, this, which determines operator, punctures direction, improve puncture it is quasi-
True property plays the role of vital.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is syringe outer housing positive structure schematic of the invention.
Fig. 3 is syringe outer housing structure schematic diagram of the invention.
Fig. 4 is the cross section structure schematic diagram of gasket seal of the invention.
Fig. 5 is the plane face structural schematic diagram of gasket seal of the invention.
In figure: 1, puncture needle needle core；10, puncture needle fixed column；11, puncture needle knob；12, knob internal screw thread；13, knob
Anti-skidding muscle；
2, syringe water storage outer housing；24, fluid level scale；25, angle measuring calibration；26,5 degree of graduation marks；27,1 degree of graduation mark；
3, coaxial inner sleeve；30, through-hole；
4, puncture needle inducting device；40, upper cover plate connects external screw thread；41, needle core connects external screw thread；42, inner cone guide hole；
43, lower seal boss；
5, upper cover plate；50, upper cover plate connecting tube；51, upper cover plate gasket seal fixing groove；
6, gasket seal；60, diaphragm can be punctured；61, ring type seal；
8, lower cover plate；80, lower cover plate connecting tube；81, lower cover plate gasket seal fixing groove；
9, puncture cannula fixing seat；90, internal taper hole；91, upper seal boss；92, puncture cannula；93, anti-skidding stupefied；94, under
Cover board connects external screw thread.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Such as Fig. 1 to Fig. 5,
A kind of injection partition-type coaxial sleeve puncture needle, it is characterised in that including puncture needle and syringe outer housing (2), needle
Cylinder outer housing (2) is square cylinder, and syringe outer housing (2) upper and lower ends are sealedly connected with upper cover plate (5) and lower cover plate respectively
(8), coaxial inner sleeve (3) is arranged between upper cover plate (5) and lower cover plate (8), which is provided with several through-holes (30)；Upper cover plate
(5) puncture needle inducting device (4) are threadedly coupled on, puncture needle inducting device (4) is for connecting syringe, and screw thread connects on lower cover plate (8)
It connects puncture cannula fixing seat (9), a gasket seal (6), lower cover plate is equipped between upper cover plate (5) and puncture needle inducting device (4)
(8) another gasket seal (6) is equipped between puncture cannula fixing seat (9)；Puncture needle sequentially passes through puncture needle inducting device
(4), a gasket seal (6), coaxial inner sleeve (3), another gasket seal (6) and puncture cannula fixing seat (9).
Syringe outer housing (2) upper and lower ends are sealedly connected with upper cover plate (5) and lower cover plate (8) respectively, can by sealant,
The technological means such as hot melt are tightly connected, and can also be combined together by injection mold disposal molding and with upper and lower cover plates, used
Material is transparent medical grade plastic.
Puncture needle includes puncture needle needle core (1), puncture needle fixed column (10) and puncture needle knob (11)；Puncture needle needle core
(1) upper end is fixedly connected with puncture needle fixed column (10), and puncture needle fixed column (10) is fixedly connected with puncture needle knob (11),
Puncture needle knob (11) outer wall is equipped with the anti-skidding muscle of knob (13) of protrusion, and puncture needle knob (11) inner wall is equipped with knob internal screw thread
(12)。
Being fixedly connected can be by sealant, and the technological means such as hot melt, injection molding are realized.Material is medical plastic.
Knob internal screw thread (12) connect external screw thread (41) threaded connection with the needle core of puncture needle inducting device (4).
Syringe outer housing (2) its surface is equipped with fluid level scale (24) and angle measuring calibration (25), and angle measuring calibration (25) includes 72
The 5 degree long graduation mark (26) and 360 1 degree short graduation marks (27) being arranged every 1 degree that item is arranged every 5 degree.
Syringe outer housing (2) its surface is equipped with fluid level scale (24) and angle measuring calibration (25), can pass through printing, engraving or mould
The technological means such as modeling, laser printing are realized.
Puncture needle inducting device (4) is cylinder, and middle part outer wall is equipped with upper cover plate connection external screw thread (40), and upper part is equipped with
Needle core connects external screw thread (41)；Puncture needle inducting device (4) lower part is equipped with the lower seal boss being tightly connected with gasket seal (6)
It (43), is inner cone guide hole (42) structure inside puncture needle inducting device (4), material is medical transparent plastic.
Upper cover plate (5) be it is rectangular, upper cover plate (5) is equipped with the upper cover plate connecting tube (50) that projects upwards, on upper cover plate (5)
It is additionally provided with the upper cover plate gasket seal fixing groove (51) of fixing seal gasket (6).
Upper cover plate connecting tube (50) inner wall is equipped with the internal screw thread that external screw thread (40) connection is connect with upper cover plate, and material is medical
Transparent plastic.
Gasket seal (6) is circle, and wherein position is that can puncture diaphragm (60), and edge is ring type seal outstanding
(61), diaphragm (60) can be punctured to be structure as a whole with ring type seal (61), material is medical silica-gel or medical grade rubber.
Lower cover plate (8) be it is rectangular, lower cover plate (8) is equipped with downward projection of lower cover plate connecting tube (80), on lower cover plate (8)
It is additionally provided with the lower cover plate gasket seal fixing groove (81) of fixing seal gasket (6).
The inner wall of lower cover plate connecting tube (80) is equipped with the internal screw thread that external screw thread (94) connection is connect with lower cover plate.Material is doctor
Use transparent plastic.
Puncture cannula fixing seat (9) includes internal taper hole (90), upper seal boss (91), puncture cannula (92), anti-skidding stupefied
(93) it is connected with lower cover plate external screw thread (94), puncture cannula fixing seat (9) is cylinder, is internally provided with internal taper hole (90), wears
It pierces casing fixing seat (9) lower part and is equipped with and be connected with internal taper hole (90), puncture cannula (92) with internal taper hole (90), puncture cannula is solid
Reservation (9) outer wall be equipped with anti-skidding stupefied (93) connected with lower cover plate external screw thread (94), puncture cannula fixing seat (9) top equipped with
The upper seal boss (91) that gasket seal (6) is tightly connected, material is medical plastic.
The technical solution provided according to the present invention, one kind is on the basis of existing coaxial sleeve, the casing seat of its root
(plastic part part) extension simultaneously becomes coaxial inner sleeve, an additional hollow transparent regular quadrangle cylindrical shell, center
The Openworks shape through-hole that latticed, cellular or other means is added on coaxial inner sleeve communicates it with shell.
Further, added outer body four sides mark volume scale and corner mark scale.
Further, coaxial inner sleeve top is connected with upper cover plate, and center is consistent, and upper cover plate is equipped with and projects upwards
Upper cover plate connecting tube (50) is additionally provided with the upper cover plate gasket seal fixing groove (51) of fixing seal gasket (6) on upper cover plate (5)
Further, coaxial inner sleeve lower part is connected with lower cover plate, and center is consistent；Fixing seal is additionally provided on lower cover plate
The lower cover plate gasket seal fixing groove (81) and lower cover plate connecting tube of gasket (6)
The soft gasket of a medical material: gasket seal (6), gasket seal is added in upper and lower cover plates gasket seal fixing groove
(6) periphery column is thickened as sealing ring, and it is consistent with gasket seal fixing groove to thicken width.Be punctured respectively needle inducting device and
The upper-lower seal boss compressing sealing of puncture cannula fixing seat is fixed.
Further, upper cover plate connecting tube (50) is connected and is tightened with screw thread with puncture needle inducting device.Lower cover plate connecting tube
It is connected and tightens with screw thread with puncture cannula fixing seat (9).
From described above as can be seen that the present invention provides the co-axial technique casing of a kind of novel fluid injection body and extraneous partition
Needle.
Before puncturing operation starts, physiological saline first is extracted with injector for medical purpose, through puncture needle inducting device 4, in gasket
Puncturing for piece 6 is pierced an aperture (as venthole) on diaphragm 60, then is pierced into syringe needle that can puncture the other position of diaphragm 60, slowly
Slow saline injection reaches the horizontal horizontal line position 31 of syringe water storage outer housing.It is worn then along the insertion of puncture needle inducting device 4
Pricker needle core 1 successively pierces through first gasket seal 6 fixed on upper cover plate 5, through coaxial interior by puncture needle inducting device 4
Casing 3 pierces through second gasket seal 6 fixed on lower cover plate 8, via puncture cannula fixing seat 9 is pierced by puncture cannula again
92, and knob internal screw thread 12 connect with puncture needle inducting device to 41 screw thread of external screw thread is twisted and fixation operates.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention
Preference, be not intended to limit the invention, without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (8)
1. a kind of fluid injection partition-type coaxial sleeve puncture needle, it is characterised in that including puncture needle casing and syringe outer housing (2), needle
Cylinder outer housing (2) is square cylinder, and syringe outer housing (2) upper and lower ends are sealedly connected with upper cover plate (5) and lower cover plate respectively
(8), coaxial inner sleeve (3) is arranged between upper cover plate (5) and lower cover plate (8), which is provided with several through-holes (30)；Upper cover plate
(5) puncture needle inducting device is threadedly coupled on, and ((4), puncture needle inducting device (4) is for connecting syringe, and screw thread connects on lower cover plate (8)
It connects puncture cannula fixing seat (9), a gasket seal (6), lower cover plate is equipped between upper cover plate (5) and puncture needle inducting device (4)
(8) another gasket seal (6) is equipped between puncture cannula fixing seat (9)；Puncture needle core sequentially passes through puncture needle inducting device
(4), a gasket seal (6), coaxial inner sleeve (3), another gasket seal (6) and puncture cannula fixing seat (9).
2. injection partition-type coaxial sleeve puncture needle according to claim 1, it is characterised in that: the puncture needle includes wearing
Pricker needle core (1), puncture needle fixed column (10) and puncture needle knob (11)；Puncture needle needle core (1) upper end and puncture needle fixed column
(10) it is fixedly connected, puncture needle fixed column (10) is fixedly connected with puncture needle knob (11), and puncture needle knob (11) outer wall is equipped with
The anti-skidding muscle of the knob of protrusion (13), puncture needle knob (11) inner wall are equipped with knob internal screw thread (12).
3. injection partition-type coaxial sleeve puncture needle according to claim 1, it is characterised in that: the syringe outer housing
(2) its surface is equipped with fluid level scale (24) and angle measuring calibration (25), and angle measuring calibration (25) includes 72 every 5 degree of 5 degree be arranged
Graduation mark (26) and 360 1 degree of graduation marks (27) being arranged every 1 degree.
4. injection partition-type coaxial sleeve puncture needle according to claim 1, it is characterised in that: the puncture needle inducting device
It (4) is cylinder, middle part outer wall is equipped with upper cover plate connection external screw thread (40), and upper part is equipped with needle core connection external screw thread (41)；
Puncture needle inducting device (4) lower part is equipped with the lower seal boss (43) being tightly connected with gasket seal (6), puncture needle inducting device (4)
Inside is inner cone guide hole (42) structure.
5. injection partition-type coaxial sleeve puncture needle according to claim 1, it is characterised in that: the upper cover plate (5) is
Rectangular, upper cover plate (5) is equipped with the upper cover plate connecting tube (50) (inner wall is equipped with screw thread) projected upwards, and upper cover plate is also set on (5)
There is the upper cover plate gasket seal fixing groove (51) of fixing seal gasket (6).
6. injection partition-type coaxial sleeve puncture needle according to claim 1, it is characterised in that: the gasket seal (6)
For circle, wherein position is pierceable membrane piece (60), and edge is ring type seal outstanding (61), pierceable membrane piece (60) with
Ring type seal (61) is structure as a whole, and material is medical silica-gel or medical grade rubber.
7. injection partition-type coaxial sleeve puncture needle according to claim 1, it is characterised in that: the lower cover plate (8) is
Rectangular, lower cover plate (8) is equipped with downward projection of lower cover plate connecting tube (80), and lower cover plate is additionally provided with fixing seal gasket on (8)
(6) lower cover plate gasket seal fixing groove (81).
8. injection partition-type coaxial sleeve puncture needle according to claim 1, it is characterised in that: the puncture cannula is fixed
Seat (9) includes that internal taper hole (90), upper seal boss (91), puncture cannula (92), anti-skidding stupefied (93) with lower cover plate connect external screw thread
(94), puncture cannula fixing seat (9) is cylinder, is internally provided with internal taper hole (90), puncture cannula fixing seat (9) lower part is equipped with
With internal taper hole (90), puncture cannula (92) is connected with internal taper hole (90), and puncture cannula fixing seat (9) outer wall is equipped with anti-skidding stupefied
(93) it is connected with lower cover plate external screw thread (94), puncture cannula fixing seat (9) top is upper equipped with being tightly connected with gasket seal (6)
Seal boss (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810923895.4A CN109223123B (en) | 2018-08-14 | 2018-08-14 | Injection partition type coaxial sleeve puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810923895.4A CN109223123B (en) | 2018-08-14 | 2018-08-14 | Injection partition type coaxial sleeve puncture needle |
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| CN109223123A true CN109223123A (en) | 2019-01-18 |
| CN109223123B CN109223123B (en) | 2021-12-17 |
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ID=65070076
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810923895.4A Active CN109223123B (en) | 2018-08-14 | 2018-08-14 | Injection partition type coaxial sleeve puncture needle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110478009A (en) * | 2019-09-20 | 2019-11-22 | 中南大学湘雅医院 | A kind of cardiovascular intervention device |
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| CN2887261Y (en) * | 2006-04-17 | 2007-04-11 | 孙东 | A novel disposable lumbar puncture needle assembly |
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| CN204261141U (en) * | 2014-11-13 | 2015-04-15 | 武汉境辉环保科技有限公司 | A kind of fluid-tight syringe |
| CN204581452U (en) * | 2015-04-08 | 2015-08-26 | 闫萍 | Novel marrow puncture needle |
| CN205094555U (en) * | 2015-11-12 | 2016-03-23 | 温州医科大学附属第一医院 | Formula of loosing core thyroid gland tubercle pjncture needle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110478009A (en) * | 2019-09-20 | 2019-11-22 | 中南大学湘雅医院 | A kind of cardiovascular intervention device |
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| CN109223123B (en) | 2021-12-17 |
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