CN111110329A - Disposable infant lumbar puncture needle - Google Patents
Disposable infant lumbar puncture needle Download PDFInfo
- Publication number
- CN111110329A CN111110329A CN202010037633.5A CN202010037633A CN111110329A CN 111110329 A CN111110329 A CN 111110329A CN 202010037633 A CN202010037633 A CN 202010037633A CN 111110329 A CN111110329 A CN 111110329A
- Authority
- CN
- China
- Prior art keywords
- needle
- puncture needle
- connecting pipe
- puncture
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009593 lumbar puncture Methods 0.000 title claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 239000007787 solid Substances 0.000 claims abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 210000004761 scalp Anatomy 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 210000002330 subarachnoid space Anatomy 0.000 description 7
- 230000006378 damage Effects 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 208000014674 injury Diseases 0.000 description 5
- 208000002403 Encephalocele Diseases 0.000 description 4
- 208000032843 Hemorrhage Diseases 0.000 description 4
- 210000001175 cerebrospinal fluid Anatomy 0.000 description 4
- 210000002919 epithelial cell Anatomy 0.000 description 4
- 206010022773 Intracranial pressure increased Diseases 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 208000034158 bleeding Diseases 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 201000009941 intracranial hypertension Diseases 0.000 description 3
- 206010019909 Hernia Diseases 0.000 description 2
- 239000002246 antineoplastic agent Substances 0.000 description 2
- 229940044683 chemotherapy drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000007917 intracranial administration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000026005 Central nervous system vascular disease Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 208000025222 central nervous system infectious disease Diseases 0.000 description 1
- 238000002512 chemotherapy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000007913 intrathecal administration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 210000004003 subcutaneous fat Anatomy 0.000 description 1
Images
Classifications
-
- 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
- A61B17/3401—Puncturing needles for the peridural or subarachnoid space or the plexus, e.g. for anaesthesia
-
- 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
- A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
-
- 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
- A61B17/3498—Valves therefor, e.g. flapper valves, slide valves
Abstract
The invention relates to the technical field of lumbar puncture needles, in particular to a disposable infant lumbar puncture needle, which comprises: the puncture needle, the connecting pipe, the scale, the handle, the needle core and the stop block; the puncture needle is of a hollow tubular structure, one end of the puncture needle is an inclined needle tip part, the other end of the puncture needle is fixedly connected with the connecting pipe in a sealing way, the other end of the connecting pipe is used for the needle core to penetrate through, and the connecting pipe is provided with a valve; scales are arranged on the outer surface of the puncture needle, and the scales start from the needle tip part of the puncture needle; the handle is fixed on the tube wall of the puncture needle and is arranged close to the connecting tube; the needle core is of a solid rod body structure, one end of the needle core is fixed on the stop block, and the stop block can be in sealing connection with the connecting pipe; the needle tip of the needle core does not exceed the inclined plane of the puncture needle after the needle core is inserted into the puncture needle from the connecting pipe. Compared with a disposable scalp needle, a disposable syringe and a common lumbar puncture needle, the lumbar puncture needle provided by the invention can effectively reduce some risks brought in the lumbar puncture process.
Description
Technical Field
The invention relates to the technical field of lumbar puncture needles, in particular to a disposable infant lumbar puncture needle.
Background
The information disclosed in this background of the invention is only for enhancement of understanding of the general background of the invention and is not necessarily to be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Lumbar puncture is an important method and operation for assisting in diagnosing central nervous system infectious diseases, central nervous system vascular diseases and intracranial space occupying diseases, intrathecally injecting chemotherapeutic drugs and the like. Neonates and infants have a large difficulty in puncturing because of their tender skin, thin subcutaneous fat, short distance from the skin to the subarachnoid space, and narrow subarachnoid space. At present, a plurality of units of neonatal and infant lumbar puncture needles for clinical application are disposable scalp needles, disposable syringes or common lumbar puncture needles, however, the inventor finds that the disposable scalp needles, the disposable syringes and the common lumbar puncture needles have the following defects in long-term work: (1) the needle bar of the common lumbar puncture needle is long, and the whole needle is heavy to operate and not easy to fix when being applied to newborns and infants. (2) The common lumbar puncture needle has a large diameter, and is easy to cause puncture injury, bleeding and even puncture failure. (3) Because the disposable scalp needle and the disposable injection secondary needle point have longer inclined planes, are sharper and are easy to puncture and damage, and the two have no needle cores, intracranial hypertension patients are possible to cause the danger of cerebral hernia, and epithelial cells are easy to bring into the subarachnoid space.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a disposable lumbar puncture needle specially suitable for infants, and compared with the existing disposable scalp needle, disposable syringe or common lumbar puncture needle, the infant lumbar puncture needle provided by the invention can effectively reduce some risks brought in the lumbar puncture process. In order to achieve the purpose, the invention adopts the following technical means:
a disposable infant lumbar puncture needle comprising: the puncture needle, the connecting pipe, the scale, the handle, the needle core and the stop block; the puncture needle is of a hollow tubular structure, one end of the puncture needle is an inclined needle tip part, the other end of the puncture needle is fixedly connected with the connecting pipe in a sealing manner, the other end of the connecting pipe is used for the needle core to penetrate through, and the connecting pipe is provided with a valve; the outer surface of the puncture needle is provided with scales, and the scales start from the needle tip part of the puncture needle. The handle is fixed on the tube wall of the puncture needle and is arranged close to the connecting tube; the needle core is of a solid rod body structure, one end of the needle core is fixed on the stop block, and the stop block can be in sealing connection with the connecting pipe; the needle tip of the needle core does not exceed the inclined plane of the puncture needle after the needle core is inserted into the puncture needle from the connecting pipe.
Furthermore, the stop block is of a bottle cap-shaped structure made of plastic materials, the needle core is fixed on the inner surface of the top wall of the bottle cap-shaped structure, and internal threads are arranged on the inner surface of the side wall of the bottle cap-shaped structure; and the outer surface of the other end of the connecting pipe is provided with an external thread, and the stop block and the connecting pipe are connected in a sealing manner through the internal thread and the external thread.
Furthermore, the total length of the puncture needle and the connecting pipe is 5-6cm, and the length of the puncture needle is not less than 3 cm. The total length is about half of the length of the puncture needle which is commonly used at present, and the operation is more convenient when the puncture needle is applied to newborns and infants.
Furthermore, the outer diameter of the puncture needle is 0.30-0.36mm, and compared with the existing commonly-used lumbar puncture needle, the puncture needle is thinner, so that the risks of puncture injury, bleeding and even puncture failure caused by puncture are reduced as much as possible.
Further, the length of the scales is not less than 3cm so as to meet the depth of lumbar puncture, the puncture depth of a newborn baby is 0.5-1cm generally, and the puncture depth of a baby is 1.5-2cm generally.
Furthermore, when the valve of the connecting pipe is screwed out, the needle core can smoothly pass through the connecting pipe. The scalp needle and the needle point inclined plane of the disposable injection adopted by the existing infant lumbar puncture are long and sharp, puncture injury is easy to cause, and the scalp needle and the needle point inclined plane are both provided with no needle cores, so that the risk of encephalic hernia caused by intracranial hypertension is easy to cause, and epithelial cells are easy to bring into the subarachnoid space. The problems can be overcome through the matching of the connecting pipe and the needle core, because the valve can control the flow rate, the needle core can control the outflow time (the needle core can flow out after being drawn out), and the flow rate and the time can be controlled through the matching of the valve and the needle core, thereby avoiding the encephalic hernia caused by a high-pressure patient.
Furthermore, the puncture needle and the needle core are made of stainless steel, so that the rigidity requirement of needle head puncture can be met conveniently.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention can reduce the risk of cerebral hernia caused by intracranial hypertension during puncture by matching the puncture needle and the needle core, and is beneficial to avoiding leading epithelial cells into the subarachnoid space.
(2) The scale is arranged on the puncture needle, so that the puncture depth can be visually observed and mastered conveniently, and the injury hemorrhage caused by over-deep puncture can be reduced as much as possible.
(3) The handle is arranged, so that the needle holder is convenient to hold, and is also beneficial to preventing the problem of over-deep needle insertion caused by accidents, such as the problem of wrong grasping of puncture strength, the handle can play a role in blocking to a certain extent, and the further increase of puncture depth is avoided.
(4) The connecting pipe with the valve is arranged, so that operations such as cerebrospinal fluid pressure measurement, retention, intrathecal injection of chemotherapeutic drugs and the like can be conveniently mastered, the operation is not in a mess, and more importantly, the occurrence of cerebral hernia and the like caused by the outward spraying of cerebrospinal fluid under intracranial high pressure can be effectively reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic view of the structure of a puncture needle in the embodiment of the present invention.
FIG. 2 is a schematic view of the structure of the stylet and the stopper in an embodiment of the invention.
Fig. 3 is a schematic structural view of a disposable infant lumbar puncture needle in an embodiment of the present invention.
The designations in the above figures represent respectively: 1-puncture needle, 2-connecting tube, 3-scale, 4-handle, 5-needle core and 6-block.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
For convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate that the directions of movement are consistent with those of the drawings, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element needs to have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, and for example, the terms "mounted," "connected," and "fixed" may be fixed, detachable, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.
As mentioned above, the existing disposable scalp needle, disposable syringe and common lumbar puncture needle commonly used for lumbar puncture of newborn and infant in clinical application have the disadvantages of heavy operation, possible risk of causing cerebral hernia, easy introduction of epithelial cells into subarachnoid space, etc. Therefore, the invention provides a disposable infant lumbar puncture needle; the invention will now be further described with reference to the drawings and detailed description.
Referring to fig. 1-3, there is illustrated a disposable infant lumbar puncture needle designed according to the present invention, comprising: pjncture needle 1, connecting pipe 2, scale 3, handle 4, nook closing member 5 and dog 6, wherein:
the puncture needle 1 is of a hollow tubular structure, one end of the puncture needle is an inclined needle tip part, the other end of the puncture needle 1 is fixedly connected with the connecting pipe 2 in a sealing way, the other end of the connecting pipe 2 is used for the needle core 5 to penetrate through, and the connecting pipe 2 is provided with a valve; the outer surface of the puncture needle 1 is provided with scales 3, and the scales start from the needle tip part of the puncture needle 1. The handle 4 is fixed on the tube wall of the puncture needle 1, and the handle 4 is arranged close to the connecting tube 2; the needle core 5 is of a solid rod body structure, one end of the needle core is fixed on a stop block 6, the stop block 6 is of a bottle cap-shaped structure made of plastic materials, the needle core 5 is fixed on the inner surface of the top wall of the bottle cap-shaped structure, and inner threads are arranged on the inner surface of the side wall of the bottle cap-shaped structure; and an external thread is arranged on the outer surface of the other end of the connecting pipe 2, and the stop block 6 and the connecting pipe 2 are connected in a sealing way through the internal thread and the external thread. After the needle core 5 is inserted into the puncture needle 1 from the connecting pipe 2, the needle tip part of the needle core does not exceed the inclined plane of the puncture needle 1; the valve of the connecting pipe 2 has the functions of rotation and opening and closing, and the needle core 5 can smoothly pass through the connecting pipe 2 to enter the puncture needle 1 when the valve is screwed out.
It is understood that, on the basis of the above embodiments, the following technical solutions including but not limited to the following may be derived to solve different technical problems and achieve different purposes of the invention, and specific examples are as follows:
in some implementations, the total length of the puncture needle 1 and the connection tube 2 is 6cm, the length of the puncture needle 1 is 3cm, the length of the scale is 3cm so as to meet the depth of lumbar puncture, the puncture depth of a newborn baby is generally 0.5-1cm, and the puncture depth of a baby is generally 1.5-2 cm. The total length of the puncture needle 1 and the connecting pipe 2 is about half of the length of the lumbar puncture needle commonly used at present, and the operation is more convenient when the puncture needle is applied to newborns and infants. The outer diameter of the puncture needle is 0.35mm, and compared with the existing commonly-used lumbar puncture needle, the puncture needle is thinner, so that the risks of puncture injury, bleeding and even puncture failure caused by puncture are reduced as much as possible.
In addition, in some implementations, the total length of the puncture needle 1 and the connecting pipe 2 is 5cm, the length of the puncture needle 1 is 3.5cm, the length of the scales is 3cm, the outer diameter of the puncture needle is 0.30mm, and the puncture needle 1 and the needle core 5 are made of stainless steel, so that the rigidity requirement of needle puncture can be met conveniently.
When the disposable infant lumbar puncture needle is used for lumbar puncture operation, the whole needle is as shown in fig. 3, the right hand-held handle 4 starts puncture, the puncture point is positioned at the lumbar, the inclined plane of the needle tip part of the puncture needle faces the head direction, the puncture needle 1 is vertically and slowly punctured into the skin, the position can be positioned by the aid of the scale 3 of the puncture needle, when the puncture needle is empty, the needle tip enters the subarachnoid space at the moment, then the needle core 5 is slowly drawn out by the hand-held stop block 6, the valve of the connecting pipe 2 is rotated to the closing position when cerebrospinal fluid flows out, the valve of the connecting pipe 2 is opened after the other end of the connecting end (i.e. the end for being in sealing connection with the stop block 6) is connected with the pressure measuring pipe, after the reading of the pressure of the cerebrospinal fluid is measured, the valve of the connecting pipe 2 is rotated to the closing position, the. If the chemotherapy medicine and the like need to be injected intrathecally, the operation of injecting the medicine can also be carried out by connecting the connecting pipe 2 with an injector. After the operation, the core needle 5 is inserted into the puncture needle 1 through the connection tube 2, and then the puncture needle is withdrawn.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A disposable infant lumbar puncture needle, comprising: the puncture needle, the connecting pipe, the scale, the handle, the needle core and the stop block; the puncture needle is of a hollow tubular structure, one end of the puncture needle is an inclined needle tip part, the other end of the puncture needle is fixedly connected with the connecting pipe in a sealing way, the other end of the connecting pipe is used for the needle core to penetrate through, and the connecting pipe is provided with a valve; scales are arranged on the outer surface of the puncture needle, and the scales start from the needle tip part of the puncture needle; the handle is fixed on the tube wall of the puncture needle and is arranged close to the connecting tube; the needle core is of a solid rod body structure, one end of the needle core is fixed on the stop block, and the stop block can be in sealing connection with the connecting pipe; the needle tip of the needle core does not exceed the inclined plane of the puncture needle after the needle core is inserted into the puncture needle from the connecting pipe.
2. The disposable infant lumbar puncture needle according to claim 1, wherein the stopper is a bottle cap-shaped structure, the stylet is fixed to an inner surface of a top wall of the bottle cap-shaped structure, and an inner thread is provided on an inner surface of a side wall of the bottle cap-shaped structure; and the outer surface of the other end of the connecting pipe is provided with an external thread, and the stop block and the connecting pipe are connected in a sealing manner through the internal thread and the external thread.
3. The disposable infant lumbar puncture needle according to claim 2, wherein the cap-shaped structure is made of plastic.
4. The disposable infant lumbar puncture needle according to claim 1, wherein the total length of the puncture needle and the connecting tube is 5-6cm, and the length of the puncture needle is not less than 3 cm.
5. The disposable infant lumbar puncture needle according to claim 1, wherein the puncture needle has an outer diameter of 0.30 to 0.36 mm.
6. The disposable infant lumbar puncture needle according to claim 1, wherein the length of the scale is not less than 3 cm.
7. The disposable infant lumbar puncture needle according to any one of claims 1 to 6, wherein the puncture needle and the needle core are made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010037633.5A CN111110329A (en) | 2020-01-14 | 2020-01-14 | Disposable infant lumbar puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010037633.5A CN111110329A (en) | 2020-01-14 | 2020-01-14 | Disposable infant lumbar puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111110329A true CN111110329A (en) | 2020-05-08 |
Family
ID=70490521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010037633.5A Pending CN111110329A (en) | 2020-01-14 | 2020-01-14 | Disposable infant lumbar puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111110329A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116552A (en) * | 1994-08-09 | 1996-02-14 | 贝克顿迪金森公司 | Method and apparatus for adjusting the lengh of a combined spinal-epidural needle |
| CN1672649A (en) * | 2005-04-16 | 2005-09-28 | 何明利 | Cerebrospinal fluid puncturing drainer |
| US7282057B2 (en) * | 2004-03-30 | 2007-10-16 | Wilson-Cook Medical, Inc. | Pediatric atresia magnets |
| CN201379883Y (en) * | 2009-04-18 | 2010-01-13 | 张德利 | Disposable compound thoracentesis needle |
| CN202932987U (en) * | 2012-11-26 | 2013-05-15 | 张平 | Disposable infant lumbar spinal needle |
| CN204744348U (en) * | 2015-07-28 | 2015-11-11 | 杭州市第一人民医院 | Lumbar puncture needle |
| CN205626057U (en) * | 2016-04-26 | 2016-10-12 | 董亚莉 | Neonate threads a needle with safe waist |
| CN108378874A (en) * | 2018-05-02 | 2018-08-10 | 中国人民解放军陆军军医大学第附属医院 | A kind of newborn's Multifunctional safe type waist with a scale wears catheter needle |
| CN209347168U (en) * | 2018-06-19 | 2019-09-06 | 南京医科大学第二附属医院 | A kind of articular cavity puncture needle of improvement |
-
2020
- 2020-01-14 CN CN202010037633.5A patent/CN111110329A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116552A (en) * | 1994-08-09 | 1996-02-14 | 贝克顿迪金森公司 | Method and apparatus for adjusting the lengh of a combined spinal-epidural needle |
| US7282057B2 (en) * | 2004-03-30 | 2007-10-16 | Wilson-Cook Medical, Inc. | Pediatric atresia magnets |
| CN1672649A (en) * | 2005-04-16 | 2005-09-28 | 何明利 | Cerebrospinal fluid puncturing drainer |
| CN201379883Y (en) * | 2009-04-18 | 2010-01-13 | 张德利 | Disposable compound thoracentesis needle |
| CN202932987U (en) * | 2012-11-26 | 2013-05-15 | 张平 | Disposable infant lumbar spinal needle |
| CN204744348U (en) * | 2015-07-28 | 2015-11-11 | 杭州市第一人民医院 | Lumbar puncture needle |
| CN205626057U (en) * | 2016-04-26 | 2016-10-12 | 董亚莉 | Neonate threads a needle with safe waist |
| CN108378874A (en) * | 2018-05-02 | 2018-08-10 | 中国人民解放军陆军军医大学第附属医院 | A kind of newborn's Multifunctional safe type waist with a scale wears catheter needle |
| CN209347168U (en) * | 2018-06-19 | 2019-09-06 | 南京医科大学第二附属医院 | A kind of articular cavity puncture needle of improvement |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20200508 |