CN215840694U - Drainage device for neurosurgery - Google Patents
Drainage device for neurosurgery Download PDFInfo
- Publication number
- CN215840694U CN215840694U CN202120627559.2U CN202120627559U CN215840694U CN 215840694 U CN215840694 U CN 215840694U CN 202120627559 U CN202120627559 U CN 202120627559U CN 215840694 U CN215840694 U CN 215840694U
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- liquid
- pipe
- drainage
- fixedly connected
- liquid discharge
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- 239000007788 liquid Substances 0.000 claims abstract description 120
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000009434 installation Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 241000894006 Bacteria Species 0.000 abstract description 6
- 238000009395 breeding Methods 0.000 abstract description 3
- 230000001488 breeding effect Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 210000003128 head Anatomy 0.000 description 5
- 230000008569 process Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000018737 Parkinson disease Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 206010015037 epilepsy Diseases 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 210000002418 meninge Anatomy 0.000 description 1
- 208000030159 metabolic disease Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 208000004296 neuralgia Diseases 0.000 description 1
- 230000008506 pathogenesis Effects 0.000 description 1
- 210000001428 peripheral nervous system Anatomy 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 210000004761 scalp Anatomy 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a drainage device for neurosurgery, which comprises a base, wherein a fixed rod is fixedly connected to the left side of the top of the base, a collection tank is fixedly connected to the top of the fixed rod, a liquid discharge pipe is communicated with the bottom of the collection tank, a liquid discharge valve is fixedly arranged on the surface of the liquid discharge pipe, a corrugated pipe is communicated with the bottom of the liquid discharge pipe, a sealing cover is movably sleeved on the top of the surface of the collection tank, a bolt penetrates through the bottom of the left side of the sealing cover, the right end of the bolt penetrates into the collection tank, and a mounting frame is fixedly connected to the top of the inner cavity of the collection tank. The utility model discloses possess convenient to use's advantage, solved current drainage device for neurosurgery at the in-process that uses, be not convenient for carry out the back flush to the drainage tube that blocks up, influence drainage device's drainage efficiency easily, be not convenient for wash drainage jar inside, cause the inside problem of breeding the bacterium of drainage jar easily.
Description
Technical Field
The utility model relates to the technical field of neurosurgery, in particular to a drainage device for neurosurgery.
Background
Neurosurgery is a branch of surgery, and is a high, fine and advanced discipline for researching the human nervous system, such as brain, spinal cord and peripheral nervous system, and related subsidiary mechanisms, such as injury, inflammation, tumor, malformation of skull, scalp, cerebral vessels, meninges and other structures, and the pathogenesis of certain genetic metabolic disorders or dysfunctional diseases, such as epilepsy, Parkinson's disease, neuralgia and the like, and exploring new diagnosis, treatment and prevention technologies by applying a unique neurosurgery research method on the basis of surgery as a main treatment means.
Current drainage device for neurosurgery is at the in-process that uses, is not convenient for carry out the back flush to the drainage tube that blocks up, influences drainage device's drainage efficiency easily, is not convenient for wash drainage jar inside, causes drainage jar inside to breed the bacterium easily.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a drainage device for neurosurgery, which has the advantage of convenience in use and solves the problems that a blocked drainage tube is inconvenient to backwash in the using process of the existing drainage device for neurosurgery, the drainage efficiency of the drainage device is easily influenced, the inside of a drainage tank is inconvenient to clean, and bacteria are easily grown in the drainage tank.
In order to achieve the purpose, the utility model provides the following technical scheme: a drainage device for neurosurgery comprises a base, wherein a fixed rod is fixedly connected to the left side of the top of the base, a collection tank is fixedly connected to the top of the fixed rod, a liquid discharge pipe is communicated with the bottom of the collection tank, a liquid outlet valve is fixedly mounted on the surface of the liquid discharge pipe, a corrugated pipe is communicated with the bottom of the liquid discharge pipe, a sealing cover is movably sleeved on the top of the surface of the collection tank, a bolt is arranged at the bottom of the left side of the sealing cover in a penetrating manner, the right end of the bolt penetrates into the collection tank, a mounting frame is fixedly connected to the top of an inner cavity of the collection tank, a mounting bucket is movably connected to the inner wall of the mounting frame, a filter frame is fixedly connected to the bottom of the mounting bucket, limiting rods are fixedly connected to four corners of the bottom of the sealing cover, the bottom of each limiting rod extends to the bottom of the inner cavity of the filter frame and is movably connected with the bottom of the inner cavity of the filter frame, and a liquid level sensor is fixedly mounted at the top of the left side of the inner cavity of the collection tank, the right side fixedly connected with air pump at base top, the inlet end intercommunication of air pump has the intake pipe, the one end that the air pump was kept away from to the intake pipe runs through to the top of collection tank inner chamber, the top fixedly connected with liquid reserve tank on collection tank right side, the top fixedly connected with liquid pump of liquid reserve tank, the feed liquor end of liquid pump runs through to the bottom of liquid reserve tank inner chamber through the pipeline, the play liquid end intercommunication of liquid pump has the hose, the fixed surface of hose installs the recoil valve, the top intercommunication of sealed lid has the feed liquor pipe, the left end of hose and the right side intercommunication of feed liquor pipe, the left side intercommunication of feed liquor pipe has the drainage tube, the left end intercommunication of drainage tube has the drainage head, the left side intercommunication of drainage tube bottom has the blow off pipe, the equal fixed mounting in surface of drainage tube and feed liquor pipe has the feed liquor valve.
Preferably, one end of the corrugated pipe, which is far away from the liquid discharge pipe, is communicated with a liquid discharge head, and the top of the inner wall of the sealing cover is fixedly connected with a sealing gasket.
Preferably, a thread groove is formed in the top of the left side of the collecting tank, and the right end of the bolt penetrates through an inner cavity of the thread groove and is in threaded connection with the inner wall of the thread groove.
Preferably, the inner cavity of the liquid storage tank is filled with normal saline, the top on the right side of the liquid storage tank is communicated with a liquid injection pipe, and the right end of the liquid injection pipe is provided with a screw cap.
Preferably, the bottom of the sewage draining pipe is provided with a threaded cover, and the surface of the installation hopper is movably connected with the inner wall of the collecting tank.
Preferably, the left side fixed mounting of holding vessel has the controller, and the output of controller respectively with the input electric connection of air pump and liquid pump, the input of controller and level sensor's output electric connection.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the drainage device, the matched use of the liquid inlet valve, the drain pipe, the drainage pipe, the bolt, the sealing cover, the liquid inlet pipe, the backflushing valve, the hose, the limiting rod, the filtering frame, the liquid pump, the liquid storage tank, the fixing rod, the mounting bucket and the mounting frame is adopted, so that the problems that the blocked drainage pipe is inconvenient to backflush, the drainage efficiency of the drainage device is easily influenced, the inside of the drainage tank is inconvenient to clean and bacteria are easily bred in the drainage tank in the use process of the existing drainage device for neurosurgery are solved.
2. According to the utility model, through the matching use of the liquid discharge pipe and the liquid outlet valve, the liquid in the collecting tank can be conveniently discharged, through the arrangement of the corrugated pipe, the liquid discharged by the liquid discharge pipe can be collected, through the matching use of the mounting frame and the mounting hopper, the mounting of the filter frame can be conveniently carried out, through the arrangement of the limiting rod, the filter frame can be conveniently prevented from shaking, through the arrangement of the liquid level sensor, the liquid level in the collecting tank can be conveniently detected, through the matching use of the sealing cover and the bolt, the gas leakage in the collecting tank can be conveniently prevented, and through the arrangement of the air pump, the gas in the collecting tank can be conveniently extracted to enable the interior of the collecting tank to generate negative pressure.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top cross-sectional view of a collection canister of the present invention;
FIG. 3 is a front cross-sectional view of a reservoir of the present invention;
FIG. 4 is an enlarged view of A of FIG. 1 according to the present invention.
In the figure: the device comprises a base 1, a liquid outlet valve 2, a liquid discharge pipe 3, a corrugated pipe 4, a collecting tank 5, a liquid level sensor 6, a flow guiding head 7, a liquid inlet valve 8, a sewage discharge pipe 9, a drainage pipe 10, a bolt 11, a sealing cover 12, a liquid inlet pipe 13, a recoil valve 14, a hose 15, a limiting rod 16, a filter frame 17, a liquid pump 18, a liquid storage tank 19, an air inlet pipe 20, a fixing rod 21, an air pump 22, an installation bucket 23 and an installation frame 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The base 1, the liquid outlet valve 2, the liquid discharge pipe 3, the corrugated pipe 4, the collecting tank 5, the liquid level sensor 6, the drainage head 7, the liquid inlet valve 8, the sewage discharge pipe 9, the drainage pipe 10, the bolt 11, the sealing cover 12, the liquid inlet pipe 13, the recoil valve 14, the hose 15, the limiting rod 16, the filter frame 17, the liquid pump 18, the liquid storage tank 19, the air inlet pipe 20, the fixing rod 21, the air pump 22, the mounting bucket 23, the mounting frame 24 and the like are all universal standard parts or parts known by a person skilled in the art, and the structure and the principle of the device can be known by the person skilled in the art through technical manuals or conventional experimental methods.
Referring to fig. 1-4, a drainage device for neurosurgery comprises a base 1, a fixed rod 21 is fixedly connected to the left side of the top of the base 1, a collection tank 5 is fixedly connected to the top of the fixed rod 21, a liquid discharge tube 3 is communicated with the bottom of the collection tank 5, a liquid discharge valve 2 is fixedly mounted on the surface of the liquid discharge tube 3, liquid in the collection tank 5 can be conveniently discharged by using the liquid discharge tube 3 and the liquid discharge valve 2 in a matched manner, a corrugated tube 4 is communicated with the bottom of the liquid discharge tube 3, the liquid discharged from the liquid discharge tube 3 can be collected by arranging the corrugated tube 4, a sealing cover 12 is movably sleeved on the top of the surface of the collection tank 5, one end of the corrugated tube 4, which is far away from the liquid discharge tube 3, is communicated with a liquid discharge head, a sealing gasket is fixedly connected to the top of the inner wall of the sealing cover 12, a bolt 11 is arranged at the left bottom of the sealing cover 12 in a penetrating manner, and the bolt 11 are used in a matched manner, can be convenient for preventing the gas leakage in the collecting tank 5, the right end of the bolt 11 penetrates into the collecting tank 5, the thread groove is arranged at the left top of the collecting tank 5, the right end of the bolt 11 penetrates into the inner cavity of the thread groove and is in threaded connection with the inner wall of the thread groove, the top of the inner cavity of the collecting tank 5 is fixedly connected with a mounting frame 24, the inner wall of the mounting frame 24 is movably connected with a mounting hopper 23, the filter frame 17 can be conveniently mounted by matching the mounting frame 24 and the mounting hopper 23, the bottom of the mounting hopper 23 is fixedly connected with a filter frame 17, four corners at the bottom of the sealing cover 12 are fixedly connected with limit rods 16, the filter frame 17 can be conveniently prevented from shaking by arranging the limit rods 16, the bottom of the limit rods 16 extends to the bottom of the inner cavity of the filter frame 17 and is movably connected with the bottom of the inner cavity of the filter frame 17, the liquid level sensor 6 is fixedly arranged at the left top of the inner cavity of the collecting tank 5, can be convenient for detecting the liquid level inside the collecting tank 5, the right side of the top of the base 1 is fixedly connected with an air pump 22, by arranging the air pump 22, the inside gas of the collecting tank 5 can be conveniently extracted to enable the inside of the collecting tank 5 to generate negative pressure, the air inlet end of the air pump 22 is communicated with an air inlet pipe 20, one end of the air inlet pipe 20, which is far away from the air pump 22, penetrates through the top of the inner cavity of the collecting tank 5, the top of the right side of the collecting tank 5 is fixedly connected with a liquid storage tank 19, the inner cavity of the liquid storage tank 19 is filled with normal saline, the top of the right side of the liquid storage tank 19 is communicated with a liquid injection pipe, the right end of the liquid injection pipe is provided with a rotary cover, the top of the liquid storage tank 19 is fixedly connected with a liquid pump 18, by arranging the liquid pump 18, the normal saline inside the liquid storage tank 19 can be conveniently extracted, the liquid inlet end of the liquid pump 18 penetrates through the bottom of the inner cavity of the liquid storage tank 19, the liquid outlet end of the liquid pump 18 is communicated with a hose 15, the recoil valve 14 is fixedly arranged on the surface of the hose 15, by arranging the recoil valve 14, the waste liquid can be conveniently prevented from entering the hose 15, the top of the sealing cover 12 is communicated with the liquid inlet pipe 13, the left end of the hose 15 is communicated with the right side of the liquid inlet pipe 13, the left side of the liquid inlet pipe 13 is communicated with the drainage pipe 10, the left end of the drainage pipe 10 is communicated with the drainage head 7, the left side of the bottom of the drainage pipe 10 is communicated with the drainage pipe 9, the blockage inside the drainage pipe 10 can be conveniently discharged by arranging the drainage pipe 9, the bottom of the drainage pipe 9 is provided with the threaded cover, the surface of the installation hopper 23 is movably connected with the inner wall of the collection tank 5, the liquid inlet valve 8 is fixedly arranged on the surfaces of the drainage pipe 10 and the liquid inlet pipe 13, the controller is fixedly arranged on the left side of the collection tank 5, the output end of the controller is respectively electrically connected with the input ends of the air pump 22 and the liquid pump 18, the input end of the controller is electrically connected with the output end of the liquid level sensor 6, and the waste liquid level sensor is electrically connected with the liquid level sensor through the liquid inlet valve 8, Blow off pipe 9, drainage tube 10, bolt 11, sealed lid 12, feed liquor pipe 13, recoil valve 14, hose 15, gag lever post 16, filter frame 17, liquid pump 18, the liquid reserve tank 19, the dead lever 21, the cooperation of installation fill 23 and installing frame 24 is used, the in-process of current drainage device for neurosurgery using has been solved, be not convenient for carry out the backwash to the drainage tube that blocks up, influence drainage device's drainage efficiency easily, be not convenient for wash drainage jar inside, cause the inside problem of breeding the bacterium of drainage jar easily.
When the device is used, the air pump 22 pumps air in the collection tank 5, negative pressure is generated in the collection tank 5, liquid enters the filter frame 17 through the drainage head 7 and the drainage tube 10, the filter frame 17 filters impurities in the liquid, the filtered liquid enters the bottom of the inner cavity of the collection tank 5, the liquid level sensor 6 detects the liquid level in the collection tank 5 and transmits a detection signal to the controller, when the liquid level is too high, a user opens the liquid outlet valve 2 to discharge the liquid through the drainage tube 3 and the corrugated tube 4, when the interior of the collection tank 5 needs to be cleaned, the bolt 11 is screwed out of the thread groove, the sealing cover 12 is taken out, the mounting bucket 23 is taken out of the mounting frame 24, the filter frame 17 is taken out to be cleaned, the inner wall of the collection tank 5 is cleaned, when the drainage tube 10 is blocked and needs to be backwashed, the backflush valve 14 is opened and the liquid inlet valve 8 is closed, the liquid pump 18 pumps physiological saline in the liquid storage tank 19, and enters the drainage tube 10 through the hose 15, the threaded cover at the bottom of the sewage discharge tube 9 is screwed out, and the blockage inside the drainage tube 10 is discharged through the sewage discharge tube 9.
In summary, the following steps: this drainage device for neurosurgery, through feed liquor valve 8, blow off pipe 9, drainage tube 10, bolt 11, sealed lid 12, feed liquor pipe 13, recoil valve 14, hose 15, gag lever post 16, filter frame 17, liquid pump 18, liquid reserve tank 19, the dead lever 21, the cooperation of installation fill 23 and installing frame 24 is used, the in-process of current drainage device for neurosurgery using has been solved, be not convenient for carry out the back flush to the drainage tube that blocks up, influence drainage device's drainage efficiency easily, be not convenient for wash drainage jar inside, cause the inside problem of breeding the bacterium of drainage jar easily.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A drainage device for neurosurgery, includes base (1), its characterized in that: the device is characterized in that a fixing rod (21) is fixedly connected to the left side of the top of the base (1), a collecting tank (5) is fixedly connected to the top of the fixing rod (21), a liquid discharge pipe (3) is communicated with the bottom of the collecting tank (5), a liquid discharge valve (2) is fixedly mounted on the surface of the liquid discharge pipe (3), a corrugated pipe (4) is communicated with the bottom of the liquid discharge pipe (3), a sealing cover (12) is movably sleeved on the top of the surface of the collecting tank (5), a bolt (11) is arranged at the left bottom of the sealing cover (12) in a penetrating mode, the right end of the bolt (11) penetrates into the collecting tank (5), a mounting frame (24) is fixedly connected to the top of the inner cavity of the collecting tank (5), a mounting hopper (23) is movably connected to the inner wall of the mounting frame (24), a filtering frame (17) is fixedly connected to the bottom of the mounting hopper (23), and limiting rods (16) are fixedly connected to four corners of the bottom of the sealing cover (12), the bottom of gag lever post (16) extends to the bottom of filter frame (17) inner chamber and rather than swing joint, the left top fixed mounting in collection tank (5) inner chamber has level sensor (6), the right side fixedly connected with air pump (22) at base (1) top, the inlet end intercommunication of air pump (22) has intake pipe (20), the one end that air pump (22) were kept away from in intake pipe (20) runs through to the top of collection tank (5) inner chamber, the top fixedly connected with liquid reserve tank (19) on collection tank (5) right side, the top fixedly connected with liquid pump (18) of liquid reserve tank (19), the feed liquor end of liquid pump (18) runs through to the bottom of liquid reserve tank (19) inner chamber through the pipeline, the play liquid end intercommunication of liquid pump (18) has hose (15), the fixed surface of hose (15) installs recoil valve (14), the top intercommunication of sealed lid (12) has feed liquor pipe (13), the left end of hose (15) and the right side intercommunication of feed liquor pipe (13), the left side intercommunication of feed liquor pipe (13) has drainage tube (10), the left end intercommunication of drainage tube (10) has drainage head (7), the left side intercommunication of drainage tube (10) bottom has blow off pipe (9), the equal fixed mounting in surface of drainage tube (10) and feed liquor pipe (13) has feed liquor valve (8).
2. A drainage device for neurosurgery according to claim 1, characterized in that: one end of the corrugated pipe (4) far away from the liquid discharge pipe (3) is communicated with a liquid discharge head, and the top of the inner wall of the sealing cover (12) is fixedly connected with a sealing gasket.
3. A drainage device for neurosurgery according to claim 1, characterized in that: the top of the left side of the collecting tank (5) is provided with a thread groove, and the right end of the bolt (11) penetrates through an inner cavity of the thread groove and is in threaded connection with the inner wall of the thread groove.
4. A drainage device for neurosurgery according to claim 1, characterized in that: the inner cavity of the liquid storage box (19) is filled with normal saline, the top on the right side of the liquid storage box (19) is communicated with a liquid injection pipe, and the right end of the liquid injection pipe is provided with a screw cap.
5. A drainage device for neurosurgery according to claim 1, characterized in that: the bottom of the sewage draining pipe (9) is provided with a threaded cover, and the surface of the installation hopper (23) is movably connected with the inner wall of the collecting tank (5).
6. A drainage device for neurosurgery according to claim 1, characterized in that: the left side fixed mounting of holding vessel (5) has the controller, and the output of controller respectively with air pump (22) and liquid pump (18) input electric connection, the input of controller and liquid level sensor's (6) output electric connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120627559.2U CN215840694U (en) | 2021-03-29 | 2021-03-29 | Drainage device for neurosurgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120627559.2U CN215840694U (en) | 2021-03-29 | 2021-03-29 | Drainage device for neurosurgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215840694U true CN215840694U (en) | 2022-02-18 |
Family
ID=80318395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120627559.2U Expired - Fee Related CN215840694U (en) | 2021-03-29 | 2021-03-29 | Drainage device for neurosurgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215840694U (en) |
-
2021
- 2021-03-29 CN CN202120627559.2U patent/CN215840694U/en not_active Expired - Fee Related
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Granted publication date: 20220218 |