CN216317760U - Inflatable abdominal wall retractor for laparoscope - Google Patents
Inflatable abdominal wall retractor for laparoscope Download PDFInfo
- Publication number
- CN216317760U CN216317760U CN202122802195.XU CN202122802195U CN216317760U CN 216317760 U CN216317760 U CN 216317760U CN 202122802195 U CN202122802195 U CN 202122802195U CN 216317760 U CN216317760 U CN 216317760U
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- Prior art keywords
- air bag
- abdominal wall
- inner cylinder
- outer cylinder
- connecting rod
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- 210000003815 abdominal wall Anatomy 0.000 title claims abstract description 40
- 239000011324 bead Substances 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 210000000683 abdominal cavity Anatomy 0.000 abstract description 18
- 208000005646 Pneumoperitoneum Diseases 0.000 abstract description 11
- 210000004303 peritoneum Anatomy 0.000 abstract description 2
- 210000002784 stomach Anatomy 0.000 abstract 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 238000012544 monitoring process Methods 0.000 description 5
- 230000036285 pathological change Effects 0.000 description 5
- 231100000915 pathological change Toxicity 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 238000002357 laparoscopic surgery Methods 0.000 description 4
- 230000003902 lesion Effects 0.000 description 4
- 238000002324 minimally invasive surgery Methods 0.000 description 4
- 230000003187 abdominal effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 206010002091 Anaesthesia Diseases 0.000 description 2
- 230000037005 anaesthesia Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036407 pain Effects 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses an inflatable abdominal wall retractor for a laparoscope, which comprises a puncture cone, an air bag hole, a connecting rod, an air bag pipe, a sealing valve, a connector, an inner cylinder, a handle, a pull ring, a rear clamping bead, a spring, a front clamping bead, a clamping groove and an outer cylinder, wherein the puncture cone is arranged on the outer wall of the laparoscope; this inflatable peritoneoscope stomach wall tractive ware, can be convenient carry out the peritoneoscope patient that exempts from under the peritoneoscope, the stomach wall tractive, establish operation space, the puncture awl of this apparatus can be under the supervision of peritoneoscope camera, directly carry out patient's stomach wall puncture operation, through the expanded gasbag after aerifing, block patient's peritoneum in the abdominal cavity, the abdominal cavity is outer to be passed through the pull ring, can directly carry out patient's stomach wall and carry out the pull, suspend the operation in midair, exempt from the pneumoperitoneoscope under the peritoneoscope and expose operation space, assist the operation under the peritoneoscope, be fit for the peritoneoscope that can not endure pneumoperitoneum pressure and suspend the operation in midair, through clinical use, this surgical instrument uses convenient operation, fast, in a flexible way, the effectual operation region that exposes, guarantee the operation safety under the non-pneumoperitoneoscope peritoneoscope.
Description
Technical Field
The utility model relates to the technical field of laparoscopic surgery application, in particular to an inflatable laparoscopic abdominal wall retractor.
Background
The development of modern medicine, minimally invasive surgery has been the development direction of surgical operation at present, and minimally invasive surgery has the advantages of small wound, quick recovery and less pain, and has become the object and the direction which are jointly pursued by modern medicine. Laparoscopic techniques are in some respects gradually replacing traditional surgery. When various operations are performed under a laparoscope, a puncture cannula is needed to be used, an in-vitro channel of a patient is established on the abdominal wall of the patient, a tiny puncture cannula channel is established on the abdominal wall of the patient, a specific pneumoperitoneum machine capable of controlling certain pressure is used, an inflation pipeline is used for injecting carbon dioxide gas into the abdominal cavity of the patient through the puncture cannula, the abdominal cavity of the patient is inflated and expands, a larger operation space is artificially established inside the abdominal cavity of the patient, the operation area with pathological changes of the patient is exposed clearly, then an operator places the abdominal cavity of the patient through the channel established by the puncture cannula on the abdominal wall of the patient, and uses minimally invasive surgical instruments such as surgical scissors, separating forceps, an electrotome, an ultrasonic knife and the like to perform the operation on the pathological changes in the abdominal cavity of the patient through the channel of the puncture cannula, the pneumoperitoneum machine is turned off, and simultaneously the redundant carbon dioxide gas in the abdominal cavity of the patient is discharged, and a small amount of residual carbon dioxide gas can be absorbed through the peritoneum of the patient. However, in actual clinical work, patients are often aged or other patients who cannot tolerate the pneumoperitoneum pressure caused by abdominal wall expansion and strongly require a laparoscopic minimally invasive surgical operation, and unfortunately, no special and good pneumoperitoneum-free abdominal wall suspension and traction instrument exists clinically at present, and certain trouble is brought to surgeons and patients.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an inflatable abdominal wall retractor for a laparoscope, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: an inflatable laparoscope abdominal wall retractor comprises a puncture cone, an air bag hole, a connecting rod, an air bag pipe, a sealing valve, a connector, an inner cylinder, a handle, a pull ring, a rear clamping bead, a spring, a front clamping bead, a clamping groove and an outer cylinder; the method is characterized in that: the puncture cone is connected with the inner cylinder through a connecting rod; the air bag is connected with an interface with a closed valve through an air bag hole and an air bag pipe; the outer cylinder is connected with the pull ring; the puncture cone, the connecting rod and the inner cylinder can move back and forth in the outer cylinder; one end of the inner cylinder is connected with the handle, and the other end of the inner cylinder is provided with a clamping groove structure; the front and rear clamping beads may be connected to a spring.
Furthermore, the puncture cone is a conical structure which is made of metal and can move back and forth in the front end of the outer cylinder under the action of the push-pull force of the connecting rod, so that the abdominal wall puncture is facilitated.
Furthermore, the connecting rod is a connecting rod, one end of the connecting rod is fixed at the puncture cone, the other end of the connecting rod is fixed at the inner cylinder, and the connecting rod controls the puncture cone to move back and forth through the back and forth movement of the inner cylinder.
Furthermore, the air bag is a closed sacculus structure which is fixed at the front end of the outer cylinder and can expand after being inflated and contract after being exhausted.
Furthermore, the air bag pipe is arranged in the outer cylinder, and one end of the air bag pipe is communicated with the air bag in a closed mode through an air bag hole; the other end is connected with the interface through a sealing valve of a one-way valve structure.
Furthermore, the interface can be communicated with a medical injector, and a sealing valve which has sealing function, is made of rubber and prevents air leakage is designed behind the interface.
Furthermore, one end of the inner cylinder is provided with a clamping groove, and the other end of the inner cylinder is connected with the handle; and can move back and forth in the outer cylinder under the control of the handle.
Furthermore, when the clamping groove on the inner cylinder is connected with the front clamping bead card, the puncture cone just completely protrudes out of the outer cylinder; when the clamping groove on the inner cylinder is connected with the rear clamping bead card, the puncture cone just retracts into the outer cylinder.
Furthermore, one end of the spring is fixedly connected with the front clamping bead and the rear clamping bead, and the other end of the spring is fixed on the bracket and has external elasticity; the pull ring is a handle which is fixed on the outer cylinder, has an anti-skid structure on the surface and is convenient for an operator to lift.
Compared with the prior art, the inflatable laparoscope abdominal wall retractor has the advantages that by adopting the apparatus, the diseased part and the abdominal wall of the patient needing operation can be drawn out well and conveniently in a gasless state (carbon dioxide gas is not filled into the abdominal cavity of the patient), and the operation space of the operation area is exposed. When the device is used, the handle is pushed forwards, the puncture cone protrudes out of the outer barrel, the puncture cone of the device can be monitored by a laparoscope camera to directly puncture the abdominal pathological change part of a patient, after the puncture is successful, the handle is returned to enable the puncture cone to shrink in the outer barrel, meanwhile, the air bag is inflated in the abdominal cavity of the patient by using the injector through the interface, the inflated air bag is clamped on the abdominal wall in the abdominal cavity of the patient, the abdominal wall of the patient can be directly lifted and suspended by the pull ring outside the abdominal cavity, the operation space is artificially established at the abdominal pathological change part of the patient, the abdominal wall is not exposed to the operation part under the laparoscope, the operation under the laparoscope is assisted, and the device is suitable for laparoscopic surgery patients who cannot bear the abdominal pressure and need abdominal wall suspension, and is clinically used, the operation device is convenient, rapid and flexible to use and operate, effectively exposes the operation area, and can ensure the safety of the operation under the non-pneumoperitoneum laparoscope.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
in the reference symbols: puncture awl, gasbag hole, connecting rod, gasbag pipe, sealing valve, interface, inner tube, handle, pull ring, back card pearl, spring, preceding card pearl, draw-in groove, urceolus.
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.
Referring to fig. 1, the present invention provides a technical solution: an inflatable laparoscope abdominal wall retractor comprises a puncture cone 1, an air bag 2, an air bag hole 3, a connecting rod 4, an air bag pipe 5, a sealing valve 6, a connector 7, an inner cylinder 8, a handle 9, a pull ring 10, a rear clamping bead 11, a spring 12, a front clamping bead 13, a clamping groove 14 and an outer cylinder 15; the method is characterized in that: the puncture cone 1 is connected with the inner cylinder 8 through the connecting rod 4; the air bag 2 is connected with a connector 7 with a sealing valve 6 through an air bag hole 3 and an air bag pipe 5; the outer cylinder 15 is connected with the pull ring 10; the puncture cone 1, the connecting rod 4 and the inner cylinder 8 can move back and forth in the outer cylinder 15; one end of the inner cylinder 8 is connected with the handle 9, and the other end is provided with a clamping groove 14 structure; the front and rear clamping beads 13 and 11 may be connected to a spring 12.
Further, the puncture cone 1 is a conical structure which is made of metal and can move back and forth in the front end of the outer cylinder 15 under the action of the push-pull force of the connecting rod 4, so that the abdominal wall puncture is facilitated.
Further, the connecting rod 4 is a connecting rod, one end of which is fixed at the puncture cone 1, the other end of which is fixed at the inner cylinder 8, and the front and back movement of the puncture cone 1 is controlled through the front and back movement of the inner cylinder 8.
Further, the airbag 2 is a closed balloon structure that is fixed to the front end of the outer cylinder 15 and is expandable after inflation and contractible after deflation.
Further, the air bag pipe 5 is arranged in the outer cylinder 15, and one end of the air bag pipe is communicated with the air bag 2 in a closed mode through the air bag hole 3; the other end is connected with a port 7 through a closing valve 6 of a one-way valve structure.
Further, the interface 7 can be communicated with a medical injector, and a sealing valve 6 which can have a sealing function, is made of rubber and prevents air leakage is designed behind the interface 7.
Furthermore, one end of the inner cylinder 8 is provided with a clamping groove 14, and the other end is connected with the handle 9; and can move back and forth in the outer cylinder 15 under the control of the handle 9.
Further, when the clamping groove 14 on the inner cylinder 8 is connected with the front clamping bead 13, the puncture cone 1 just completely protrudes out of the outer cylinder 15; when the clamping groove 14 on the inner cylinder 8 is connected with the rear clamping bead 11, the puncture cone 1 just retracts into the outer cylinder 15.
Furthermore, the spring 12 is a spring 12 with one end fixedly connected with the front clamping bead 13 and the rear clamping bead 11 and the other end fixed on the bracket and having external elasticity; the pull ring 10 is a handle which is fixed on the outer cylinder 15, has an anti-skid structure on the surface and is convenient for an operator to lift.
The specific connection structure of the inflatable laparoscope abdominal wall retractor comprises: the puncture cone 1 is made of metal and is positioned in the outer cylinder 15, one end of the puncture cone is a conical structure convenient for puncture, and the other end of the puncture cone is connected with the inner cylinder 8 through a connecting rod 4 with supporting force; the urceolus 15 of inner tube 8 one end is outside, the design has the handle 9 that makes things convenient for the operator to operate and remove inner tube 8, draw-in groove 14 structure behind the other end design of inner tube 8, simultaneously on the urceolus 15 that corresponds, the design has preceding card pearl 13 and the 11 structure of back card pearl, preceding card pearl 13 and back card pearl 11, all can block draw-in groove 14 on the inner tube 8, preceding card pearl 13 and the 11 other ends of back card pearl are fixed with spring 12 that has outer elasticity, spring 12 fixes on the fixed bolster on urceolus 15. When the clamping groove 14 is clamped with the front clamping groove 13, the puncture cone 1 just protrudes out of the outer cylinder 15; when the clamping groove 14 is clamped with the rear clamping bead 11, the puncture cone 1 is just positioned in the outer cylinder 15; the air bag 2 is made of rubber, can be expanded after inflation and can be contracted after exhaust, and is fixed at the front end of the outer cylinder 15 to form a closed bag-shaped structure; the air bag 2 is connected with an air bag pipe 5 through a channel air bag hole 3 on the outer cylinder 15; the air bag pipe 5 is positioned inside the outer cylinder 15, and the other end of the air bag pipe 5 is connected with the interface 7; the interface 7 is an interface 7 which can be communicated with a medical injector, and the inside of the interface 7 is provided with a sealing valve 6 which is made of rubber materials, prevents air leakage and can make air flow in a one-way in a natural state; when in inflation, after the medical syringe is placed into the interface 7, the head end of the injector can open the sealing valve 6 and can inflate the interface 7; after the needle cylinder is removed, the gas in the air bag 2 can be sealed by the sealing valve 6 to prevent the gas from overflowing; when the air is exhausted, when the injection syringe is put into the interface 7, the sealing valve 6 can be opened to exhaust air from the syringe, and then the air in the air bag 2 is exhausted; the pull ring 10 is a semicircular ring fixed on the outer cylinder 15, and the pull ring 10 can facilitate the operation of an operator for pulling and lifting the instrument.
The inflatable abdominal wall retractor for the laparoscope has the advantages that: when the laparoscopic minimally invasive surgery instrument is used in clinical work, a patient who needs to perform laparoscopic minimally invasive surgery cannot tolerate the intra-abdominal pneumoperitoneum pressure to cause untimely operation on the patient, and the laparoscopic surgery instrument can well replace the laparoscopic surgery without pneumoperitoneum. The instrument is convenient to use, when in use, in a disinfection and anesthesia state, firstly, a camera observation channel is established at the navel of a patient, a lesion part of the patient needing operation is taken, the handle 9 of the instrument is pushed to the front end, the clamping groove 14 is clamped with the front clamping bead 13, at the moment, the puncture cone 1 (which is a commonly used, non-sharp and non-sharp puncture instrument head end structure in clinic and cannot cause loss to visceral organs in the abdominal cavity) protrudes out of the outer barrel 15, the puncture cone can be directly punctured at the abdominal wall where the lesion part in the abdominal cavity of the patient is located under the monitoring of the laparoscope camera, after the puncture is successful, the handle 9 is pulled backwards, the clamping groove 14 is clamped with the rear clamping bead 11, and at the moment, the puncture cone 1 is retracted into the outer barrel 15; another medical injector is taken and put into the interface 7, the head end of the injector can open the closing valve 6 (the structures of the closing valve 6 and the interface 7 are similar to the structure of a flushing balloon valve on a catheter used clinically at present, and the closing valve and the interface 7 are common, familiar and mature technologies in clinic, and the key points of the non-patent are not detailed in the patent application document, so that the principle is not detailed any more), the air bag 2 is inflated through the injector-closing valve 6-air bag tube 5-air bag hole 3, and the air bag 2 is expanded and enlarged and far exceeds the diameter of the outer cylinder 15 of the puncture outfit in the abdominal cavity of a patient; the operation assistant can lift the pull ring 10 outside the body of the patient to lift the abdominal wall of the patient, or adjust the pull ring 10 to a proper height, fix the pull ring on a bracket near an operation table to lift the abdominal wall of the lesion part, and establish the operation space of the lesion part of the patient in an artificial and gasless state, thereby facilitating the operation of the operation The non-patent emphasis is not detailed in this patent application), the retraction of the balloon 2 becomes less, and the surgical instrument can be removed from the patient to complete the procedure. Through clinical use, the surgical instrument is convenient, rapid and flexible to use and operate, effectively exposes the operation area, and ensures the operation safety under the non-pneumoperitoneum laparoscope.
The specific use method of the inflatable laparoscope abdominal wall retractor comprises the following steps: when a patient needs to perform an operation under a laparoscope and cannot tolerate pneumoperitoneum pressure in clinic, the surgical instrument can be well solved. The patient operating table is in a horizontal position, under the anesthesia state, the patient is disinfected and draped, after a camera system is established on the navel, under the monitoring of a laparoscope camera, the position of the patient with pathological changes needing to be operated is searched, the abdominal wall of the patient is cut, the surgical instrument is taken, the handle 9 is pushed forward, the front clamping bead 13 is clamped and connected with the clamping groove 14, and under the action of the connecting rod 4 connected with the inner cylinder 8, the puncture cone 1 protrudes out of the outer cylinder 15; at the moment, abdominal wall puncture operation of a diseased part of a patient can be carried out under the monitoring of a laparoscope camera system, after the puncture cone 1 enters the abdominal cavity of the patient, the handle 9 is pulled back under the monitoring of camera equipment, the puncture cone 1 is contracted in the outer cylinder 15 under the action of the pulling force of the connecting rod 4, at the moment, another medical injector is taken and put into the interface 7, the head end of the injector can open the closing valve 6, the air bag 2 is inflated through the injector-closing valve 6-air bag tube 5-air bag hole 3, so that the air bag 2 is expanded and enlarged, and the diameter of the outer cylinder 15 of the puncture device is far exceeded in the abdominal cavity of the patient; the operation assistant holds the pull ring 10 upwards, can pull the abdominal wall of the diseased part of the patient open to expose the diseased part of the patient, and performs operation through a minimally invasive surgical instrument; after the operation is finished, under the monitoring of the camera equipment, the medical injector is used again, the head end of the injector is placed into the interface 7, the head end of the injector can push open the sealing valve 6 in the interface 7, the injector needle cylinder is drawn back, the gas in the air bag 2 can be discharged out of the air bag 2 through the air bag 2-air bag hole 3-air bag pipe 5-sealing valve 6-interface 7, the air bag 2 retracts to be smaller, and the traction apparatus is taken out from the body of a patient to finish the operation. Through clinical use, the inflatable laparoscope abdominal wall retractor can effectively assist a surgeon to expose pathological tissues in an abdominal cavity in a non-pneumoperitoneum state, establish an operation space, assist operation, reduce operation difficulty, improve operation safety and reduce operation time, and is worthy of clinical popularization.
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 (9)
1. An inflatable laparoscope abdominal wall retractor comprises a puncture cone, an air bag hole, a connecting rod, an air bag pipe, a sealing valve, a connector, an inner cylinder, a handle, a pull ring, a rear clamping bead, a spring, a front clamping bead, a clamping groove and an outer cylinder; the method is characterized in that: the puncture cone is connected with the inner cylinder through a connecting rod; the air bag is connected with an interface with a closed valve through an air bag hole and an air bag pipe; the outer cylinder is connected with the pull ring; the puncture cone, the connecting rod and the inner cylinder can move back and forth in the outer cylinder; one end of the inner cylinder is connected with the handle, and the other end of the inner cylinder is provided with a clamping groove structure; the front and rear clamping beads may be connected to a spring.
2. The inflatable laparoscopic abdominal wall retractor of claim 1, wherein: the puncture cone is a conical structure which is made of metal and can move back and forth in the front end of the outer cylinder under the action of the push-pull force of the connecting rod, so that the abdominal wall puncture is facilitated.
3. The inflatable laparoscopic abdominal wall retractor of claim 1, wherein: the connecting rod is a connecting rod, one end of the connecting rod is fixed at the puncture cone, the other end of the connecting rod is fixed at the inner cylinder, and the connecting rod controls the puncture cone to move back and forth through the back and forth movement of the inner cylinder.
4. The inflatable laparoscopic abdominal wall retractor of claim 1, wherein: the air bag is a closed sacculus structure which is fixed at the front end of the outer cylinder and can expand after being inflated and contract after being exhausted.
5. The inflatable laparoscopic abdominal wall retractor of claim 1, wherein: the air bag pipe is arranged in the outer cylinder, and one end of the air bag pipe is communicated with the air bag in a closed mode through an air bag hole; the other end is connected with the interface through a sealing valve of a one-way valve structure.
6. The inflatable laparoscopic abdominal wall retractor of claim 1, wherein: the interface can be communicated with a medical injector, and a sealing valve which can have sealing function, is made of rubber and prevents air leakage is designed behind the interface.
7. The inflatable laparoscopic abdominal wall retractor of claim 1, wherein: one end of the inner cylinder is provided with a clamping groove, and the other end of the inner cylinder is connected with the handle; and can move back and forth in the outer cylinder under the control of the handle.
8. The inflatable laparoscopic abdominal wall retractor of claim 1, wherein: when the clamping groove on the inner cylinder is connected with the front clamping bead card, the puncture cone just completely protrudes out of the outer cylinder; when the clamping groove on the inner cylinder is connected with the rear clamping bead card, the puncture cone just retracts into the outer cylinder.
9. The inflatable laparoscopic abdominal wall retractor of claim 1, wherein: the spring is a spring with one end fixedly connected with the front clamping bead and the rear clamping bead and the other end fixed on the bracket and has external elasticity; the pull ring is a handle which is fixed on the outer cylinder, has an anti-skid structure on the surface and is convenient for an operator to lift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122802195.XU CN216317760U (en) | 2021-11-16 | 2021-11-16 | Inflatable abdominal wall retractor for laparoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122802195.XU CN216317760U (en) | 2021-11-16 | 2021-11-16 | Inflatable abdominal wall retractor for laparoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216317760U true CN216317760U (en) | 2022-04-19 |
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ID=81150830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122802195.XU Expired - Fee Related CN216317760U (en) | 2021-11-16 | 2021-11-16 | Inflatable abdominal wall retractor for laparoscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216317760U (en) |
-
2021
- 2021-11-16 CN CN202122802195.XU patent/CN216317760U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220419 |
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| CF01 | Termination of patent right due to non-payment of annual fee |