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CN107670165A - Stop that surrounding tissue grows the double-jacket tube to tubular body - Google Patents

Stop that surrounding tissue grows the double-jacket tube to tubular body Download PDF

Info

Publication number
CN107670165A
CN107670165A CN201710895080.5A CN201710895080A CN107670165A CN 107670165 A CN107670165 A CN 107670165A CN 201710895080 A CN201710895080 A CN 201710895080A CN 107670165 A CN107670165 A CN 107670165A
Authority
CN
China
Prior art keywords
catch
surrounding tissue
double
conduction hole
jacket tube
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
Application number
CN201710895080.5A
Other languages
Chinese (zh)
Inventor
朱阿考
金慧成
应荣超
张健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou First Peoples Hospital
Original Assignee
Hangzhou First Peoples Hospital
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hangzhou First Peoples Hospital filed Critical Hangzhou First Peoples Hospital
Priority to CN201710895080.5A priority Critical patent/CN107670165A/en
Publication of CN107670165A publication Critical patent/CN107670165A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/0067Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • A61M25/007Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/0021Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026Multi-lumen catheters with stationary elements
    • A61M25/003Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • External Artificial Organs (AREA)

Abstract

Stop that surrounding tissue grows the double-jacket tube to tubular body, including body the invention discloses a kind of, be provided with water inlet pipe in the body, multiple conduction holes offered on tube wall, hollow tubular body is negative pressure cavity:The inboard wall of tube body is provided with catch, and catch is located at the opening side of conduction hole, the one side that catch faces conduction hole opening is blocking surface, one end of catch is fixed on inboard wall of tube body, formed between the blocking surface of catch and the opening of conduction hole and follow catch deformation to be used for the gap that washings enter in body, catch by being arranged on opening on the inside of conduction hole stops that surrounding tissue is grown into body, when drainage tube is outwards extracted more easily, and surrounding tissue will not be damaged, improves medical efficiency.

Description

Stop that surrounding tissue grows the double-jacket tube to tubular body
Technical field
It is specially a kind of to stop that surrounding tissue is grown to the double of tubular body the present invention relates to technical field of medical instruments Sleeve pipe.
Background technology
Surgical drainage is one of indispensable measure of many diseases of clinical treatment, such as Post operation previous anastomotic and art area Drainage, the drainage of abscess cavity.The purpose of surgical drainage is to guide the purulence between tissue or in body cavity, blood, liquid to body Outside, prevent Post operation from influenceing wound healing.Double-jacket tube is widely used in various abdominal and performed the operation, purulence under general peritonitis, diaphragm Swollen, pelvic abscess, dry ulcer, acute necrotic pancreatitis, the operation on biliary tract of complexity, and preventing and treating Post operation are concurrently intraperitoneal Infection, intestines impotence, hydrops and the effective ways for reducing toxin absorption.For there is the patient of limitation empyema or encapsulated effusion, remove Outside intravenous applications antibiotic, also need part to use antibiosis extract for treating, iodine is mainly injected to intraperitoneal infection position by double-jacket tube Volt, levofloxacin magnitude medicine, the state of an illness is accelerated to recover to improve therapeutic effect.
Wherein, double-jacket tube goes back existing defects, the conduction hole opened up in the conventional double-jacket tube side wall of medical treatment in use It is the through-hole structure of open type, because double-jacket tube needs to be placed in human body intestinal canal for a long time, the intestinal tissue in enteron aisle It can easily be grown by conduction hole into body, or even be pasted onto on inboard wall of tube body, it is necessary to which double-jacket tube is extracted and carry out down During the surgical work in stage, the intestinal tissue grown in tubular body is stuck in body, it is difficult to is split away off, under serious conditions Intestinal tissue can be even pulled off, triggers intestinal bleeding, brings other complications.Double-jacket tube can not be extracted in time, surgical work without Method continues, and patient cannot timely treat, and have a strong impact on the health of patient.
The content of the invention
The invention aims to provide a kind of double-jacket tube for stopping surrounding tissue growth and arriving tubular body, by setting The catch for putting the opening on the inside of conduction hole stops that surrounding tissue is grown into body, when drainage tube is outwards extracted more easily, And surrounding tissue will not be damaged, improves medical efficiency.
In order to realize foregoing invention purpose, present invention employs following technical scheme:One kind stops that surrounding tissue is grown and arrived The double-jacket tube of tubular body, including body, the body is interior to be provided with water inlet pipe, and multiple conduction holes are offered on tube wall, are managed Body inner hollow is negative pressure cavity:The inboard wall of tube body is provided with catch, and catch is located at the opening side of conduction hole, catch The one side for facing conduction hole opening is blocking surface, and one end of catch is fixed on inboard wall of tube body, the blocking surface and conduction hole of catch Opening between formed follow catch deformation be used for washings enter body in gap.
Preferably, the width and length of the catch are more than or equal to the diameter of conduction hole, so, catch can Side opening adjacency covers all the opening of conduction hole in conduction hole, and catch can not only stop large-scale surrounding tissue, Middle-size and small-size surrounding tissue can equally be stopped, play a part of preferably stop surrounding tissue grow arrive tubular body.
Preferably, described catch is structure as a whole with body, and catch is the medical of flexible recovery capability Silica gel material;Catch is structure as a whole with body can ensure that the service life of catch is more permanent, and catch is repeatedly It will not fall off in switching process, and catch is the medical silica-gel material of flexible recovery capability, catch liquid body washes upset open It can accurately restore afterwards and the material of catch will not cause enteron aisle adverse reaction, discomfort is brought to human body.
If the thickness of catch is thicker, the bending strength of catch is relatively low, when the negative pressure cavity in body forms negative pressure, When liquid outside body is drawn into body, liquid washes that catch is relatively elaborate open, causes the liquid of outside to difficultly flow into Tubular body, it is unable to reach the effect of drainage;Secondly, the larger washings of particle may be because that flap deformation is too small, cause to rush The opening bore opened is too small, and causes bulky grain washings to cannot be introduced into inside double-jacket tube.It is therefore preferred that described catch For the sheet of thin-walled, more bigbore opening and gap, the larger washings of particulate matter can be opened with deformation to be entered out It is intraoral;Secondly the support bullet face of catch is the arcwall face heaved in the middle part of body, passes through the protrusion direction of arcwall face so that gear Piece is inwardly dug to be increased with the difficulty of deformation, and 1, anti-stop tab warpage;2nd, the intensity of the inside deformation of catch becomes big, and opening is not Easily open, avoid the surrounding tissue of generation to drive open top in double-jacket tube into.
Preferably, the gap formed between described catch and the opening of conduction hole opens up in rake angle, and naturally The straight length ratio of the largest interval in gap and drainage wall surface of the hole is 1 under state:3, it ensure that the interval in gap was unlikely to Greatly, when blocking surface stops surrounding tissue, the inside to body can not be grown by gap, and between angle of inclination opens up Gap can make the liquid of inflow be gone downstream along the blocking surface of catch, play certain guide effect;Being arranged on for gap is negative When pressing chamber generation negative pressure, play a part of ventilating air.
Compared with prior art, tubular body is arrived in a kind of stop surrounding tissue growth for employing above-mentioned technical proposal Double-jacket tube, have the advantages that:
First, catch effectively stops surrounding tissue growth and arrives tubular body, when double-jacket tube is extracted more easily, and Surrounding tissue will not be damaged, improves operating efficiency.
2nd, being formed between the blocking surface of catch and the opening of conduction hole follows catch deformation to enter body for washings Interior gap, the washings in enteron aisle are sucked by the effect of air pressure when the negative pressure cavity that gap is used in body produces negative pressure In body.
Brief description of the drawings
Fig. 1, which is that the present invention is a kind of, stops that surrounding tissue grows the sectional view to the double-jacket tube embodiment 1 of tubular body;
Fig. 2 is a kind of structural representation for stopping surrounding tissue and growing the double-jacket tube for arriving tubular body in the present embodiment 1;
Fig. 3 is the structural representation of catch in the present embodiment 1;
Fig. 4 is the partial enlarged drawing at A in the Fig. 1 of the present embodiment 1;
Fig. 5 is the partial enlarged drawing of catch in the present embodiment 2.
Fig. 6 is a kind of structural representation for stopping surrounding tissue and growing the double-jacket tube for arriving tubular body in the present embodiment 3.
Reference:1st, body;10th, catch;11st, blocking surface;110th, bullet face is supported;2nd, water inlet pipe;20th, delivery port;3rd, drain Hole;4th, negative pressure cavity;5th, gap.
Embodiment
The present invention is described further below in conjunction with the accompanying drawings.
Embodiment 1:
A kind of stop surrounding tissue as shown in Figures 1 to 4 grows the double-jacket tube to tubular body, including body 1, body 1 Negative pressure cavity 4, catch 10, catch inside multiple conduction holes 3 for being opened up on the water inlet pipe 2 of interior setting, the side wall of body 1, body 1 Blocking surface 11 on 10, the support bullet face 110 relative with the blocking surface 11 of catch 10, and catch 10 and the opening of conduction hole 3 Between gap 5,.
As shown in Figure 1 and Figure 4, when double-jacket tube is placed in human body intestinal canal for a long time, surrounding tissue can grow drainage In hole 3, and catch 10, the width and length of catch 10 are provided with the inwall of body 1 and positioned at the opening side of conduction hole 3 More than or equal to the diameter of conduction hole 3, the side opening adjacency in conduction hole 3 of catch 10 covers all opening for conduction hole 3 Mouthful, propped up when surrounding tissue is grown into body 1 by the blocking surface 11 on catch 10, the surrounding tissue for preventing from growing is adhered to On the inwall of body 1, or it is stuck in conduction hole 3, and surrounding tissue can not continue to grow to the inside of body 1, be extracted in double-jacket tube When, split away off easily surrounding tissue relative movement out of conduction hole 3, resistance is small, more when double-jacket tube is extracted Smooth, double-jacket tube can be extracted timely, and damage will not be brought to human body intestinal canal, greatly reduce the discomfort of human body Sense.
Water inlet pipe 2 among body 1 injects cleaning fluid cleaning enteron aisle first into human body intestinal canal, then negative in body 1 Pressure chamber 4 extracts air out in the presence of external equipment and produces negative pressure, and negative pressure is by the washings in enteron aisle into the negative pressure cavity 4 of body 1 Suction, washings flow into along conduction hole 3, touch the blocking surface 11 of catch 10, due to catch 10 for the sheet of thin-walled and The medical silica-gel material of flexible recovery capability, washings easily push catch 10 open under suction function, catch 10 by Gradually inwardly so as to open the opening of conduction hole 3, washings, which can be smoothly flowed into body 1, is drained to external, enteron aisle for upset After the completion of cleaning, catch 10 restores naturally after overturning;Cleaning fluid is injected by water inlet pipe 2 and cleans enteron aisle, then is produced by negative pressure cavity 4 Raw negative pressure, which sucks the cleaning fluid for having cleaned enteron aisle in body 1, is drained to the external circulation for forming drainage.
It is that the surrounding tissue of growth grows the resistance of catch 10 to the central raised arcwall face of body 1 to support bullet face 110 When on block face 11, dug into body 1 by the arcwall face catch 10 for supporting bullet face 110 raised and added with the difficulty of deformation Greatly, the opening of gap 5 and conduction hole 3 is not easy to be opened to, and the surrounding tissue of growth, which is difficult to push catch 10 open, enters body In 1;Therefore, support bullet face 110 not only can anti-stop tab 10 warpage, and the surrounding tissue also increased in growth pushes away The deformation intensity that anti-stop tab 10 deforms when pressing catch 10.
The straight length ratio of the largest interval in gap 5 and the wall of conduction hole 3 is 1 under nature:3, gap 5 is most Large-spacing is smaller relative to the straight length of the wall of conduction hole 3, can effectively prevent the larger surrounding tissue of structure from growing to arrive Inside body 1, play certain barrier effect, in the case that gap 5 produces negative pressure in the negative pressure cavity 4 in addition, can by Air in the inspiration enteron aisle of gap 5, so as to which the washings in enteron aisle are sucked in body 1 by gap 5.
What the head that catch 10 is directed towards body 1 was set, the gap 5 at catch 10 is open towards the head of body 1, catch 1 Towards the head of body 1, washer 10 can be made to stop that the blocking effect for the surrounding tissue grown is more preferable, and the court of catch 10 To the opening direction for determining gap 5, rushing in enteron aisle can be prevented to a certain extent towards the gap 5 of the head opening of body 1 The fester that washing lotion has not been rinsed in enteron aisle, which is just back to the inside of body 1, reduces the effect for rinsing enteron aisle.Increase water inlet pipe 2 Interior flushing liquor rinses the efficiency of enteron aisle.
Embodiment 2:
The present embodiment is based on being embodiment 1, and on the basis of embodiment 1, the thickness of catch 10 is reduced, Make the thickness of catch 10 thinning.
As shown in figure 5, the inwall of body 1 is provided with catch 10, and catch 10 is located at the opening side of conduction hole 3, The one side that catch 10 faces the opening of conduction hole 3 is blocking surface 11, and one end of catch 10 is fixed on the inwall of body 1, catch 10 Formed between the opening of blocking surface 11 and conduction hole 3 and follow the deformation of catch 10 to be used for the gap that washings enter in body 1, this The thickness of catch 10 is 1 relative to the thickness ratio of catch 10 in embodiment 1 in embodiment:2.
By further reducing the thickness of catch 10, reduce and negative pressure is produced in negative pressure cavity 4, catch 10 is to the varus of body 1 The deformation intensity that catch 10 deforms when rising, it is sufficiently large to ensure that gap 5 is open with conduction hole 3, washings can be easily It is flowed into after in body 1.
The present embodiment is applied to the slower crowd of constitution accretion rate such as:Old man, accretion rate is slow, tissue growth speed It is slower.Secondly it is applied to the sufferer in cleaning abdominal cavity in the short time, because the holdup time is shorter in vivo for double-jacket tube, therefore organizes Double-jacket tube is not grown also to take out.
Embodiment 3:
The present embodiment is based on being embodiment 1, and on the basis of embodiment 1, the side wall of body 1 is thickeied, and The water inlet pipe 2 for being located at the middle part of body 1 in embodiment 1 is incorporated into the interior of body 1, by the space at the middle part of body 1 Vacate.
As shown in fig. 6, the side wall by thickening body 1, the water inlet pipe 2 among body 1 is arranged on to the inwall of body 1 Inside, and it is provided with delivery port 20, the water inlet pipe 2 that cleaning fluid is set by the side wall of body 1 close to the head of body 1 in water inlet pipe 2 Enteron aisle is rinsed in into enteron aisle, can equally reach the effect that double-jacket tube rinses enteron aisle, and the space inside body 1 is therewith Increase, more facilitates washings quickly to flow, faster can be drained to washings in vitro;It can also be used to probe probe into Whether grown inside observation body 1 has surrounding tissue.
It is described above to make the preferred embodiment of the present invention, this is not departed from for the person of ordinary skill of the art On the premise of inventive principle, some variations and modifications can also be made, these also should be regarded as protection scope of the present invention.

Claims (7)

1. a kind of stop that surrounding tissue grows the double-jacket tube to tubular body, including body (1), be provided with the body (1) into Water pipe (2), multiple conduction holes (3) are offered in body (1) side wall, and body (1) inner hollow is that negative pressure cavity (4) its feature exists In:
Body (1) inwall is provided with washer (10), and washer (10) is located at the opening side of conduction hole (3), washer (10) one side for facing conduction hole (3) opening is blocking surface (11), and one end of washer (10) is fixed on body (1) inwall, gear Being formed between the blocking surface (11) of piece (10) and the opening of conduction hole (3) follows catch (10) deformation to enter body for washings Interior gap (5).
A kind of 2. double-jacket tube for stopping surrounding tissue growth and arriving tubular body according to claim 1, it is characterised in that institute State the width of washer (10) and length is more than or equal to the diameter of conduction hole (3).
A kind of 3. double-jacket tube for stopping surrounding tissue growth and arriving tubular body according to claim 1, it is characterised in that:Institute The washer (10) stated is structure as a whole with body (1), and washer (10) is the medical silica-gel material of flexible recovery capability.
4. a kind of stop surrounding tissue according to claim 1 or 3 grows the double-jacket tube to tubular body, its feature exists In:Described washer (10) is the sheet of thin-walled, and relative surface is support bullet face with the blocking surface (11) of washer (10) (110), support bullet face (110) is the arcwall face heaved in the middle part of body (1).
A kind of 5. double-jacket tube for stopping surrounding tissue growth and arriving tubular body according to claim 1, it is characterised in that:Institute The gap (5) formed between the washer (10) and the opening of conduction hole (3) stated opens up in oblique angle, and gap under nature (5) the straight length ratio of largest interval and conduction hole (3) wall is 1:3.
A kind of 6. double-jacket tube for stopping surrounding tissue growth and arriving tubular body according to claim 1, it is characterised in that:Institute State baffle plate (10) to set towards the head of body (1), the opening of the gap (5) is towards body (1) head.
A kind of 7. double-jacket tube for stopping surrounding tissue growth and arriving tubular body according to claim 1, it is characterised in that:Institute State water inlet pipe (2) to be located in the tube wall of body (1), water inlet pipe (2) is provided with delivery port (20), and the delivery port (20) is located at body (1) in side wall, delivery port (20) is close to the head of body (1).
CN201710895080.5A 2017-09-28 2017-09-28 Stop that surrounding tissue grows the double-jacket tube to tubular body Pending CN107670165A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710895080.5A CN107670165A (en) 2017-09-28 2017-09-28 Stop that surrounding tissue grows the double-jacket tube to tubular body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710895080.5A CN107670165A (en) 2017-09-28 2017-09-28 Stop that surrounding tissue grows the double-jacket tube to tubular body

Publications (1)

Publication Number Publication Date
CN107670165A true CN107670165A (en) 2018-02-09

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Family Applications (1)

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Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110496293A (en) * 2019-08-19 2019-11-26 张曦 A kind of improved Anti-pressure drainage tube
CN112245750A (en) * 2020-09-24 2021-01-22 中国人民解放军陆军军医大学第二附属医院 Multifunctional trachea cannula

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4382445A (en) * 1980-12-04 1983-05-10 Cosmos Research Associates Physiological fluid shunt system and improvements therefor
US4398910A (en) * 1981-02-26 1983-08-16 Blake L W Wound drain catheter
US4549879A (en) * 1983-05-03 1985-10-29 Catheter Technology Corporation Valved two-way catheter
US4717379A (en) * 1984-06-29 1988-01-05 Mediplast Ab Catheter, probe or similar device
US5116310A (en) * 1990-07-30 1992-05-26 Helix Medical, Inc. Multiple lumen wound drain with bypass openings
EP0608846A2 (en) * 1993-01-28 1994-08-03 Gadi Porat A medical drain
US5360414A (en) * 1992-10-08 1994-11-01 Yarger Richard J Tube for draining body cavities, viscera and wounds
US20040006331A1 (en) * 2002-07-04 2004-01-08 Semyon Shchervinsky Drain catheters
US20050004536A1 (en) * 2003-06-05 2005-01-06 Opie John C. Surgical drains
JP2010119737A (en) * 2008-11-21 2010-06-03 Fujifilm Corp Drainage tube
CN206007785U (en) * 2016-05-23 2017-03-15 三峡大学 A kind of medical drainage tube
CN106512186A (en) * 2016-11-25 2017-03-22 威海恒基伟业信息科技发展有限公司 Intracranial pressure drainage guide pipe
CN106943659A (en) * 2017-04-20 2017-07-14 南宁腾科宝迪生物科技有限公司 A kind of new medical irrigation drainage tube and its application method
CN208785549U (en) * 2017-09-28 2019-04-26 杭州市第一人民医院 It is a kind of that surrounding tissue is stopped to breed the double-jacket tube to tubular body

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4382445A (en) * 1980-12-04 1983-05-10 Cosmos Research Associates Physiological fluid shunt system and improvements therefor
US4398910A (en) * 1981-02-26 1983-08-16 Blake L W Wound drain catheter
US4549879A (en) * 1983-05-03 1985-10-29 Catheter Technology Corporation Valved two-way catheter
US4717379A (en) * 1984-06-29 1988-01-05 Mediplast Ab Catheter, probe or similar device
US5116310A (en) * 1990-07-30 1992-05-26 Helix Medical, Inc. Multiple lumen wound drain with bypass openings
US5360414A (en) * 1992-10-08 1994-11-01 Yarger Richard J Tube for draining body cavities, viscera and wounds
EP0608846A2 (en) * 1993-01-28 1994-08-03 Gadi Porat A medical drain
US20040006331A1 (en) * 2002-07-04 2004-01-08 Semyon Shchervinsky Drain catheters
US20050004536A1 (en) * 2003-06-05 2005-01-06 Opie John C. Surgical drains
JP2010119737A (en) * 2008-11-21 2010-06-03 Fujifilm Corp Drainage tube
CN206007785U (en) * 2016-05-23 2017-03-15 三峡大学 A kind of medical drainage tube
CN106512186A (en) * 2016-11-25 2017-03-22 威海恒基伟业信息科技发展有限公司 Intracranial pressure drainage guide pipe
CN106943659A (en) * 2017-04-20 2017-07-14 南宁腾科宝迪生物科技有限公司 A kind of new medical irrigation drainage tube and its application method
CN208785549U (en) * 2017-09-28 2019-04-26 杭州市第一人民医院 It is a kind of that surrounding tissue is stopped to breed the double-jacket tube to tubular body

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110496293A (en) * 2019-08-19 2019-11-26 张曦 A kind of improved Anti-pressure drainage tube
CN112245750A (en) * 2020-09-24 2021-01-22 中国人民解放军陆军军医大学第二附属医院 Multifunctional trachea cannula
CN112245750B (en) * 2020-09-24 2023-08-15 中国人民解放军陆军军医大学第二附属医院 Multifunctional trachea cannula

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Application publication date: 20180209