CN113729888A - Novel Trocar with protective isolation film - Google Patents
Novel Trocar with protective isolation film Download PDFInfo
- Publication number
- CN113729888A CN113729888A CN202111151480.8A CN202111151480A CN113729888A CN 113729888 A CN113729888 A CN 113729888A CN 202111151480 A CN202111151480 A CN 202111151480A CN 113729888 A CN113729888 A CN 113729888A
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- Prior art keywords
- trocar
- protective
- inner sleeve
- outer sleeve
- isolation film
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- 230000001681 protective effect Effects 0.000 title claims abstract description 49
- 238000002955 isolation Methods 0.000 title claims abstract description 41
- 230000004888 barrier function Effects 0.000 claims abstract description 18
- 239000012528 membrane Substances 0.000 claims description 16
- 210000000683 abdominal cavity Anatomy 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 13
- 210000003815 abdominal wall Anatomy 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 7
- 201000011510 cancer Diseases 0.000 abstract description 4
- 201000000585 muscular atrophy Diseases 0.000 abstract description 3
- 210000004379 membrane Anatomy 0.000 description 15
- 206010028980 Neoplasm Diseases 0.000 description 10
- 206010027476 Metastases Diseases 0.000 description 7
- 230000009401 metastasis Effects 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 206010042344 Subcutaneous emphysema Diseases 0.000 description 6
- 238000002513 implantation Methods 0.000 description 6
- 210000004303 peritoneum Anatomy 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 238000002324 minimally invasive surgery Methods 0.000 description 5
- 230000002792 vascular Effects 0.000 description 5
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 2
- 230000003187 abdominal effect Effects 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 210000004881 tumor cell Anatomy 0.000 description 2
- 206010071229 Procedural haemorrhage Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002357 laparoscopic surgery Methods 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
- 206010033675 panniculitis Diseases 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 210000004304 subcutaneous tissue 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
- A61B17/3478—Endoscopic needles, e.g. for infusion
-
- 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
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0801—Prevention of accidental cutting or pricking
- A61B2090/08021—Prevention of accidental cutting or pricking of the patient or his organs
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to a novel Trocar with a protective isolation film, which comprises a Trocar inner sleeve, a barrier dam structure, a protective isolation film, a self-elastic ring, an outer sleeve and a detachable binding buckle; the barrier dam structure is arranged at the tail end of the Trocar inner sleeve; the protective isolation film is sealed on the outer side surface of the Trocar inner sleeve, and the self-elastic circular ring is arranged in the barrier dam structure and connected with the tail end of the protective isolation film; the outer sleeve is of a detachable structure; the detachable binding buckle is arranged at the tail end of the outer sleeve. Its advantages are: the chimney effect is blocked by a method of forming a relatively closed space between the puncture hole of the abdominal wall and the Trocar by using the protective film, the peritoneal defect caused by the puncture hole is directly protected, meanwhile, the interference of accidental release of the Trocar can be prevented, the operation process is accelerated, and the method is particularly suitable for old patients with muscular atrophy and weak abdominal wall and patients with long operation time, particularly patients with malignant tumors, and has important clinical significance.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a novel Trocar with a protective isolation film.
Background
In the field of surgical medical treatment, laparoscopic and robotic minimally invasive surgery are in an increasing proportion, and have gradually become the mainstream of surgical operations. The laparoscopic and robot minimally invasive surgery both need to fill CO2 gas into the abdomen in large quantities to form intra-abdominal high pressure to create an operation space, and then Trocar with different quantities and diameters is used for puncturing the abdominal wall to form operation channels, so that the operation is completed. During the surgical procedure, the first, puncture hole destroys the integrity of the peritoneum; secondly, the gap between the peritoneal puncture holes and the Trocar is enlarged due to repeated movement of the Trocar between the abdominal puncture holes in the operation, so that the sealing is not tight, carbon dioxide gas in an abdominal cavity is dispersed into the abdominal subcutaneous part through the peritoneal puncture hole defect due to intra-abdominal high pressure, severe subcutaneous emphysema of the whole body can be caused by severe patients (particularly elderly patients with muscular atrophy or insufficient strength and loose subcutaneous tissues of the whole body is severe), and the life safety and recovery of the patients are threatened; thirdly, for tumor patients, the possible serious consequences also include the chimney effect of the escape of high-pressure gas in the abdomen caused by the increase and the untight sealing of the gap between Trocar and the puncture hole of the abdominal wall. It has been proved that in the minimally invasive surgery of tumor patients, the aerosol formed by using the electric working station contains a large amount of active tumor cells, and the accumulation and the planting metastasis of the tumor cells at the puncture hole are caused due to the chimney effect. Because the damaged peritoneum loses the integrity, the resistance to the tumor is correspondingly reduced, and the implantation metastasis of the tumor is easy to occur when the blood directly pollutes the damaged peritoneum caused by the intraoperative hemorrhage. The cases of tumor implantation and metastasis at Trocar after the laparoscopic surgery of malignant tumor patients are frequently reported, which also seriously hinders the application of the laparoscopic and robot minimally invasive surgery in the malignant tumor patients; fourthly, because the gap between the Trocar and the puncture hole of the abdominal wall is enlarged due to the operation, the Trocar is easy to separate from the puncture hole in the operation process, and the operation process is influenced. Fifth, Trocar widely used in laparoscopic and robotic minimally invasive surgery at present only engraves a plurality of spiral patterns on the tube wall to increase friction with the abdominal wall musculature to prevent Trocar from escaping during surgery (the anti-escaping function is also very limited), and does not protect the peritoneum of the puncture hole.
Chinese patent documents: CN202011569589.9, application date 2021.05.14, patent names: a protection device of a laparoscope puncture outfit and the laparoscope puncture outfit. The utility model discloses a protection device and peritoneoscope puncture ware of peritoneoscope puncture ware, belong to peritoneoscope puncture ware technical field, its technical scheme main points include the preliminary treatment protective housing, through setting up the preliminary treatment protective housing, the thread protection cover, transparent sight glass, the disinfection sleeve, the cooperation of alcohol disinfection cotton and flexible rubber piece is used, can carry out effectual protection to the peritoneoscope puncture ware before using, can disinfect to the sharp tip of puncture pole simultaneously, it disinfects once more to need not the user to take out the back, also simultaneously also through the contact of flexible rubber piece with the peritoneoscope puncture ware, firmly fix the inner chamber at the preliminary treatment protective housing with the peritoneoscope puncture ware, the user is when taking the peritoneoscope puncture ware, through rotating the thread protection cover, can realize taking the purpose to the peritoneoscope puncture ware.
Chinese patent documents: cn202011519874.x, application date 2020.12.21, patent names: an effective air leakage prevention balloon puncture outfit. The utility model discloses an effective sacculus puncture ware of leak protection gas, including casing seat, first connecting pipe, puncture rod, elastic channel, fastener, puncture sleeve pipe, retaining ring and puncture head, the inside puncture rod jack that is equipped with of casing seat, and the casing seat outside is equipped with the slipmat, first connecting pipe sets up in the casing seat top, and is equipped with the valve on the first connecting pipe, and first connecting pipe right side is equipped with the second connecting pipe simultaneously, puncture rod runs through the inside sealing washer of casing seat through puncture rod jack, and passes through spring and casing seat fixed connection in the sealing washer both sides, elastic channel sets up inside the casing seat, and elastic channel one side is equipped with the seal membrane, the fastener sets up in the seal membrane both sides, and the seal membrane both sides are equipped with the trip.
In the protection device for the laparoscopic puncture outfit and the laparoscopic puncture outfit disclosed in the patent document CN202011569589.9, the design of the pretreatment protection shell, the thread protection cover, the transparent observation mirror, the disinfection sleeve, the alcohol disinfection cotton and the flexible rubber block is adopted, so that the purpose of taking the laparoscopic puncture outfit can be realized, the protection effect on the laparoscopic puncture outfit is improved, and the speed of taking the laparoscopic puncture outfit is also improved; in the patent document cn202011519874.x, a puncture rod jack is arranged inside a casing seat, a non-slip mat, a connecting pipe, a balloon puncture outfit and the like are arranged outside the casing seat, an air leakage preventing sealing film and an air leakage preventing plugging head are arranged, the air leakage preventing sealing film is arranged inside an annular balloon, so that a double protection effect is achieved, and the air leakage preventing plugging head effectively prevents the annular balloon from air leakage accidents. However, the abdominal cavity puncture outfits disclosed in the above two patent documents cannot simultaneously prevent the tumor from spreading and transferring due to the contamination of the puncture hole by aerosol and blood, and the subcutaneous emphysema caused by the leakage of carbon dioxide gas through the puncture hole.
In conclusion, a method for forming a relatively closed space between a puncture hole and a Trocar by using a protective isolation membrane is needed, so that the chimney effect is blocked, the peritoneal defect at the puncture hole is directly protected, and the Trocar is prevented from accidentally dropping in the operation, so that the subcutaneous emphysema is reduced, the tumor implantation metastasis is reduced, and the operation process is accelerated.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a novel Trocar with a protective isolation membrane for accelerating the operation process by forming a relatively closed space between a puncture hole and the Trocar by using the protective isolation membrane, so that the chimney effect is blocked, the peritoneal defect at the puncture hole is directly protected, and the Trocar is prevented from being accidentally pulled out in the operation, thereby reducing subcutaneous emphysema, reducing tumor implantation metastasis.
In order to achieve the purpose, the invention adopts the technical scheme that:
a novel Trocar with a protective and insulating film comprises a Trocar inner sleeve, a barrier dam structure, a protective and insulating film, a self-elastic ring, an outer sleeve and a detachable binding buckle; the barrier dam structure is arranged at the tail end of the Trocar inner sleeve; the protective isolation film is sealed on the outer side surface of the Trocar inner sleeve, and the self-elastic circular ring is arranged in the barrier dam structure and connected with the tail end of the protective isolation film; the outer sleeve is of a detachable structure; the outer sleeve is arranged on the surface of the Trocar inner sleeve, and the detachable binding buckle is arranged at the tail end of the outer sleeve; when the novel Trocar with the protective isolation membrane is used, the Trocar enters the abdominal cavity in a conventional puncture mode.
As a preferable technical scheme, the interval between the barrier dam structures is 1.5cm, and the thickness of the barrier dam structures is 2 mm.
As a preferred technical scheme, the surface of the outer sleeve is of a detachable structure and can be directly split by hands.
The invention has the advantages that:
1. the novel Trocar with a protective isolation membrane is designed, a chimney effect is blocked by a method of forming a relatively closed space between a puncture hole and the Trocar by using the protective isolation membrane, the peritoneal defect at the puncture hole is directly protected, and accidental escape of the Trocar in an operation is prevented, so that subcutaneous emphysema is reduced, tumor implantation metastasis is reduced, and the operation process is accelerated.
Drawings
FIG. 1 is a schematic perspective view of a Trocar inner sleeve of a protection and isolation device suitable for a Trocar puncture hole.
Fig. 2 is a schematic view of the protective barrier membrane of the protective barrier device suitable for Trocar puncture of the present invention after fully opened and released.
FIG. 3 is a sectional view of an inner sleeve head section with a detachable binding clasp of a protection and insulation device suitable for Trocar puncture hole of the invention.
Fig. 4 is a cross-sectional view of the end of the inner sleeve of the protective and insulating device for Trocar puncture according to the present invention with a dam structure.
Fig. 5 is a schematic perspective view of an outer sleeve of the protective and insulating device for Trocar puncture according to the present invention.
Fig. 6 is a schematic view of the overall structure of a protection and insulation device suitable for the Trocar puncture hole of the invention.
Fig. 7 is a schematic plane structure diagram of each component of the protection and insulation device suitable for the Trocar puncture hole.
Detailed Description
The invention is further described with reference to the following examples and with reference to the accompanying drawings.
The reference numerals and components referred to in the drawings are as follows:
1, Trocar inner sleeve 2, separation embankment structure
3. Protective isolation film 4. self-elastic ring
5. Outer sleeve 6, detachable binding fastener
Example 1
Referring to fig. 1-4, fig. 1 is a schematic view showing a perspective structure of a Trocar inner sleeve of a novel Trocar with a self-protection isolation film of the invention, fig. 2 is a schematic view showing the Trocar with a novel self-protection isolation film of the invention after the protection isolation film is completely opened and released, fig. 3 is a cross-sectional view showing a head section of the Trocar inner sleeve of the novel Trocar with a self-protection isolation film of the invention with a detachable binding buckle, and fig. 4 is a cross-sectional view showing a barrier dam structure at the end of the Trocar inner sleeve of the novel Trocar with a self-protection isolation film of the invention. A novel Trocar with a protective and insulating film comprises a Trocar inner sleeve 1, a barrier dam structure 2, a protective and insulating film 3, a self-elastic ring 4, an outer sleeve 5 and a detachable binding buckle 6; the Trocar inner sleeve 1 and the outer sleeve 5 are both hollow structures; the separation embankment structures 2 are arranged at the tail ends of the Trocar inner sleeves 1, the intervals between the embankment structures 2 are 1.5cm, and the thicknesses of the embankment structures 2 are 2 mm; the protective isolation film 3 is sealed on the outer side surface of the Trocar inner sleeve 1, and the self-elastic ring 4 is arranged in the barrier dam structure 2 and connected with the tail end of the protective isolation film 3; the outer sleeve 5 is made of plastic materials, the surface of the outer sleeve is of a detachable structure, and the outer sleeve can be directly split and separated by hands; the outer sleeve 5 is arranged on the surface of the Trocar inner sleeve 1, and the detachable binding buckle 6 is arranged at the tail end of the outer sleeve 5.
It should be noted that: the Trocar inner sleeve 1 is designed to be of a hollow structure and is used for being sleeved with a Trocar with a matched caliber, so that the whole protection and isolation device can enter an abdominal cavity along with the Trocar puncture; the blocking embankment structure 2 arranged at the tail end of the Trocar inner sleeve 1 is used for restraining and fixedly connecting the self-elastic ring 4 of the protective isolation film 3 to play a role in restraining and positioning; the outer sleeve 5 is arranged on the surface of the Trocar inner sleeve 1, so that the self-elastic ring 4 can be prevented from being released by itself, and the outer sleeve 5 is in a detachable structure design, so that the outer sleeve is convenient to split and separate after the puncture enters the abdominal cavity and is taken out of the body; the detachable binding buckle 6 is designed to be elastic and can be respectively fixed on the surfaces of the inner sleeve and the outer sleeve, so that the protective isolation device is stable in overall structure and can be used for fixing the positions of the protective isolation film 3 and the Trocar;
the invention relates to a novel Trocar using method with a protective isolation film, which comprises the following steps:
s1, conventionally puncturing Trocar into an abdominal cavity, observing by a laparoscope lens to find that the proper puncture depth is reached, and then removing a detachable binding buckle 6 at the top end of an outer sleeve 5 for later use;
s2, fixing Trocar, lifting the outer sleeve to the top end at the same time, and completely exposing the area between the isolation embankment structures 2 at the tail end of the inner sleeve 1, so that the self-elastic ring 4 fixed in the isolation embankment structures 2 of the inner sleeve is automatically and completely released;
s3, splitting the outer sleeve 5 and taking out the outer sleeve;
s4, lifting the inner sleeve 1 to pull the protective isolation membrane 3, so that the released self-elastic ring 4 and the protective isolation membrane 3 are tightly attached to the periphery of the puncture peritoneum;
s5, after the depth of the Trocar entering the abdominal cavity is adjusted to reach a satisfactory operation position, the protective isolation membrane 3 is fixed on the inner sleeve 1 and the Trocar by tightly adhering the skin with a detachable binding buckle 6; in the operation, the positions of the protective isolation device and the Trocar can be readjusted by using the binding buckle 6 according to different depths of the Trocar;
s6, when the operation is finished, loosening the binding buckle, slightly loosening the protective film, and observing whether obvious blood exists between the protective film and the inner sleeve so as to eliminate the bleeding of the puncture hole; if no obvious bleeding exists, clamping one side of the self-elastic ring 4 from the inner sleeve 1 of the Trocar by using a vascular clamp, pulling the vascular clamp outwards to deform the vascular clamp and draw the vascular clamp into the inner sleeve 1 of the Trocar, and drawing the vascular clamp out of the body along with the Trocar; the Trocar can also be directly pulled out, and the self-elastic ring 4 is deformed by the force of the abdominal wall to pull out the protective isolation film 3.
The Trocar with the novel protective isolation membrane overcomes the defect that the currently widely used Trocar protects the peritoneum and the abdominal wall, blocks the chimney effect by using the method that the protective isolation membrane forms a relatively closed space between the puncture hole and the Trocar, directly protects the peritoneal defect at the puncture hole, and prevents the Trocar from accidentally dropping out during operation, thereby achieving the purposes of reducing subcutaneous emphysema, reducing tumor implantation metastasis and accelerating the operation process, being particularly suitable for old patients with muscular atrophy and weak abdominal wall and patients with longer operation time, particularly patients with malignant tumors, and having important clinical significance.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and additions can be made without departing from the principle of the present invention, and these should also be considered as the protection scope of the present invention.
Claims (3)
1. A novel Trocar with a protective and insulating film is characterized by comprising a Trocar inner sleeve, a barrier dam structure, a protective and insulating film, a self-elastic ring, an outer sleeve and a detachable binding buckle; the barrier dam structure is arranged at the tail end of the Trocar inner sleeve; the protective isolation film is sealed on the outer side surface of the Trocar inner sleeve, and the self-elastic circular ring is arranged in the barrier dam structure and connected with the tail end of the protective isolation film; the outer sleeve is of a detachable structure; the outer sleeve is arranged on the surface of the Trocar inner sleeve, and the detachable binding buckle is arranged at the tail end of the outer sleeve; when the novel Trocar with the protective isolation membrane is used, the Trocar enters the abdominal cavity in a conventional puncture mode.
2. The novel Trocar with the protective and isolating film as claimed in claim 1, wherein the spacing between the barrier bank structures is 1.5cm, and the thickness of the barrier bank structures is 2 mm.
3. The Trocar with the novel self-protection and insulation film as claimed in claim 1, wherein the surface of the outer sleeve is detachable and can be directly split by hands.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111151480.8A CN113729888A (en) | 2021-09-29 | 2021-09-29 | Novel Trocar with protective isolation film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111151480.8A CN113729888A (en) | 2021-09-29 | 2021-09-29 | Novel Trocar with protective isolation film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113729888A true CN113729888A (en) | 2021-12-03 |
Family
ID=78741905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111151480.8A Pending CN113729888A (en) | 2021-09-29 | 2021-09-29 | Novel Trocar with protective isolation film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113729888A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006271600A (en) * | 2005-03-29 | 2006-10-12 | Hakko Co Ltd | Trocar-mounted instrument |
| CN209269653U (en) * | 2018-08-14 | 2019-08-20 | 深圳市人民医院 | It is securable to the laparoscopic cannula of stomach wall |
| CN211674366U (en) * | 2020-01-16 | 2020-10-16 | 四川大学华西第二医院 | Poking card for laparoscopic surgery |
| CN212592349U (en) * | 2020-06-19 | 2021-02-26 | 宁波市第一医院 | Surgical instrument for piercing tissue |
-
2021
- 2021-09-29 CN CN202111151480.8A patent/CN113729888A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006271600A (en) * | 2005-03-29 | 2006-10-12 | Hakko Co Ltd | Trocar-mounted instrument |
| CN209269653U (en) * | 2018-08-14 | 2019-08-20 | 深圳市人民医院 | It is securable to the laparoscopic cannula of stomach wall |
| CN211674366U (en) * | 2020-01-16 | 2020-10-16 | 四川大学华西第二医院 | Poking card for laparoscopic surgery |
| CN212592349U (en) * | 2020-06-19 | 2021-02-26 | 宁波市第一医院 | Surgical instrument for piercing tissue |
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Application publication date: 20211203 |