CN107374753B - Single-hole trans-abdominal-wall trans-gastric-wall gastric-cavity operation device - Google Patents
Single-hole trans-abdominal-wall trans-gastric-wall gastric-cavity operation device Download PDFInfo
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- CN107374753B CN107374753B CN201710780216.8A CN201710780216A CN107374753B CN 107374753 B CN107374753 B CN 107374753B CN 201710780216 A CN201710780216 A CN 201710780216A CN 107374753 B CN107374753 B CN 107374753B
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- 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
- A61B90/02—Devices for expanding tissue, e.g. skin tissue
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a single-hole trans-abdominal-wall trans-gastric-wall gastric-cavity operation device, which comprises an abdominal-wall fixing component, a gastric-wall fixing component and an operation platform, wherein the abdominal-wall fixing component is hollow in the interior and has an opening structure at two ends, and the middle part of the abdominal-wall fixing component can be stretched; the stomach wall fixing assembly comprises a circular air bag, an air bag air injection pipe and an air bag fixing pipe, the circular air bag is positioned below the stomach wall fixing assembly, one end of the air bag air injection pipe and one end of the air bag fixing pipe are mutually communicated with the circular air bag, the other end of the air bag air injection pipe and the other end of the air bag fixing pipe penetrate through the stomach wall fixing assembly and penetrate out of the operation platform, and meanwhile, one-way fixing teeth are arranged on the end of the air bag air injection pipe and the air bag fixing pipe; the lower part of the operation platform is in sealing connection with the upper end of the abdominal wall fixing component, and the upper part of the operation platform is provided with an operation hole, an air inlet hole and an air outlet hole. The invention solves the problem that the operation sleeve is difficult to fix the stomach wall through the stomach wall and the stomach cavity, can realize complex surgical operation through a single hole, and has wide application prospect.
Description
Technical Field
The invention belongs to the field of medical instruments, and relates to a single-hole trans-abdominal-wall trans-gastric-wall gastric-cavity operation device.
Background
In recent years, with the rapid development of popular endoscopic techniques for gastroscopy, the diagnosis rate of early gastric cancer, gastric stromal tumor, and other prognosis-favorable gastric tumors has been gradually increased. The existing surgical treatment technology mainly focuses on the treatment of gastric cancer in the progressive stage, so that the surgical instrument designed based on the existing surgical treatment technology cannot completely meet the requirements of disease treatment. Early gastric cancer and gastric stromal tumors are indications for minimally invasive treatment, and thus, the improvement of early diagnosis rates of these diseases has driven the development of surgical treatment microinnovation techniques and new instruments. The intragastric operation through the abdominal wall and the gastric wall is one of the new surgical technologies which are emerging in recent years, the technology directly stretches surgical laparoscopic surgical instruments and laparoscopic lenses into the gastric cavity, directly observes the focus in the stomach, and can simultaneously utilize the surgical instruments to perform surgical excision in the gastric cavity.
The traditional laparoscope technology can not directly observe early gastric cancer focus and a part of interstitial tumor focus under serosa, and is difficult to prepare and position in operation and determine focus boundaries; and the traditional laparoscope technology has a large excision scope, and the enlarged excision scope can cause the damage of cardiac or pylorus functions for the focus near cardiac or pylorus, so that the postoperative life quality of patients is seriously affected. The endoscopic gastric submucosal dissection technology can directly observe the gastric mucosa focus, and can also carry out endoscopic focus excision, but the technology has higher operation difficulty on the focus positioned at the cardia and the bottom of the stomach, and is easy to cause complications such as perforation, bleeding and the like. The single-hole trans-abdominal-gastric-wall gastric cavity operation technology overcomes the defects of the traditional laparoscopic operation and endoscopic technology, and is particularly suitable for the excision of mucous membrane and submucosal focus such as early gastric cancer and gastric interstitial tumor which are positioned at the middle upper rear wall of the stomach.
The key step of the operation of the stomach cavity through the stomach wall is the establishment of an operation channel, the ideal stomach cavity operation instrument sleeve is lacking at present, and the formed single-hole stomach cavity operation device through the stomach wall is less common. The single-hole trans-abdominal-gastric-wall gastric-cavity surgical device solves the problem that a trans-abdominal-wall trans-gastric-wall gastric-cavity surgical sleeve is difficult to fix the gastric wall, realizes complex surgical operation through a single hole, and is a surgical device which is very worth popularizing and applying.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a single-hole trans-gastric-wall gastric-cavity operation device.
The technical scheme adopted by the invention is as follows:
the single-hole trans-gastric wall gastric cavity operation device comprises an abdominal wall fixing component, a gastric wall fixing component and an operation platform, wherein the abdominal wall fixing component is hollow in the interior and has an opening-shaped structure at two ends, and meanwhile, the middle part of the abdominal wall fixing component can be stretched; the stomach wall fixing assembly comprises a circular air bag, an air bag air injection pipe and an air bag fixing pipe, the circular air bag is positioned below the stomach wall fixing assembly, one end of the air bag air injection pipe and one end of the air bag fixing pipe are mutually communicated with the circular air bag, the other end of the air bag air injection pipe and the other end of the air bag fixing pipe penetrate through the stomach wall fixing assembly and penetrate out of the operation platform, and meanwhile, a part of the end penetrating out of the operation platform is provided with one-way fixing teeth; the lower part of the operation platform is in sealing connection with the upper end of the abdominal wall fixing assembly, the upper part of the operation platform is provided with an operation hole, an air inlet hole and an air outlet hole, and the air inlet hole and the air outlet hole are mutually communicated with the interior of the abdominal wall fixing assembly.
Preferably, the abdominal wall fixing component comprises an upper rigid annular support, a lower rigid annular support and an elastic connecting sleeve, wherein the elastic connecting sleeve is positioned between the upper rigid annular support and the lower rigid annular support, and the elastic connecting sleeve is in seamless connection with the lower edge of the upper rigid annular support and the upper edge of the lower rigid annular support. The rigid annular support on the incision and the rigid annular support below the incision are made of silica gel with steel wire rings in the support, and the elastic connecting sleeve is made of elastic plastic film materials. The elastic connecting sleeve is of a structure that two end ports shrink towards the middle, the diameter of the upper end port and the lower end port is 5cm, and the diameter of the middle is 2.5cm.
After the incision of the abdominal wall is cut, the rigid annular support under the incision is placed in the abdominal cavity, the rigid annular support on the incision is arranged outside the abdominal cavity, the rigid annular support on the incision is overturned outwards, the elastic connecting sleeve can be curled and wrapped on the rigid annular support on the incision, the distance between the upper rigid annular support and the lower rigid annular support on the incision is shortened, then the middle part of the elastic connecting sleeve with a shorter diameter is more close to the rigid annular support on the incision, and the traction effect of the rigid annular support on the elastic connecting sleeve on the incision is utilized to play a role in expanding and fixing the incision of the abdominal wall on the outer side of the elastic connecting sleeve.
Preferably, the operation platform comprises an upper cover and an elastic sealing ring, wherein the upper cover is positioned above the elastic sealing ring, the lower part of the elastic sealing ring is of an opening structure, the lower edge of the elastic sealing ring is in sealing connection with the rigid annular support on the notch, and the rigid annular support on the notch is positioned in the elastic sealing ring. The air bag gas injection pipe and the air bag fixing pipe penetrate out of the elastic sealing ring, and elastic clamping grooves are respectively arranged at the joints of the air bag gas injection pipe and the air bag fixing pipe and the elastic sealing ring.
The circular air bag is placed in the stomach cavity after the front wall of the stomach is cut, the air bag is expanded and molded after air injection is carried out through the air bag air injection hole and the air bag air injection pipe, then the air bag air injection pipe and the air bag fixing pipe which are connected with the circular air bag are lifted, one-way fixing teeth of the air bag air injection pipe and the air bag fixing pipe are meshed with the elastic clamping grooves on the operation platform, the circular air bag is lifted and fixed below the operation platform, and finally the purpose of fixing the front wall of the stomach above the circular air bag below the abdominal wall cut and suspending the stomach wall is achieved.
The one-way fixed teeth are arranged on the pipe walls of the air bag air injection pipe and the air bag fixed pipe, the distal ends of the one-way fixed teeth are expanded, and the close smooth transition between the proximal ends of the one-way fixed teeth and the air bag air injection pipe and the air bag fixed pipe is realized, so that the one-way fixed teeth pass through the elastic clamping grooves in one direction, then the elastic retraction effect of the elastic clamping grooves is utilized, the one-way fixed teeth are meshed with the elastic clamping grooves, and the effect of fixing the air bag is achieved. The unidirectional fixing teeth are 4-6, and the distance between every two unidirectional fixing teeth is 5mm, so that the tightness of the fixation of the circular air bag can be adjusted, and the unidirectional fixing teeth are suitable for abdominal walls with different thicknesses.
Preferably, the upper cover is provided with the operation hole, the air inlet hole and the air outlet hole, an operation space is established by air inlet of the air inlet hole, and the air is exhausted through the air outlet hole so as to eliminate the influence of smoke in the gastric cavity on the visual field. The operation hole comprises a 5mm operation hole A, a 5mm operation hole B, a 10mm operation hole and a 12mm operation hole, so that the operation hole can be suitable for the existing laparoscopic operation instruments of different models, is provided with a plastic pore canal of a unidirectional sealing valve, and reduces air leakage of an operation space in the operation process. The elastic rubber material is adopted among the operation holes to fill, so that the operation holes are supported, and the flexibility of the operation holes is not affected.
Preferably, the outermost end of the air bag air injection pipe is an air bag air injection hole, and a piston is arranged at a port of the air bag air injection hole. The air bag gas injection pipe and the air bag fixing pipe are provided with lengthening type, and the air bag gas injection pipe and the air bag fixing pipe are suitable for patients with ultra-thick abdominal walls. The upper cover of the operation platform is provided with an elastic sealing ring, after the elastic sealing ring is manually opened, the elastic sealing ring can be covered on the elastic support on the incision, and the purpose of fixing the upper cover and closing the operation space is achieved by utilizing the elastic retraction function.
The beneficial effects of the invention are as follows: the single-hole trans-abdominal-wall trans-gastric-wall gastric-cavity operation device solves the problem that the trans-abdominal-wall trans-gastric-wall gastric-cavity operation sleeve is difficult to fix the gastric wall, can realize complex surgical operation through the single hole, and has wide application prospect.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention.
Fig. 2 is a schematic diagram of an operation platform structure.
Fig. 3 is a schematic view of the invention.
Marked in the figure as: 1-abdominal wall fixing component, 2-stomach wall fixing component, 3-operation platform, 101-cut upper rigid annular support, 102-cut lower rigid annular support, 103-elastic connecting sleeve, 201-round balloon, 202-balloon gas injection hole, 203-balloon gas injection pipe, 204-balloon fixing pipe, 205-one-way fixed tooth, 301-5mm operation hole A, 302-5mm operation hole B, 303-gas inlet hole, 304-gas outlet hole, 305-12mm operation hole, 306-10mm operation hole, 307-elastic sealing ring, 308-elastic clamping groove and 309-upper cover.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples.
As shown in fig. 1 to 3, a single-hole trans-abdominal-wall trans-gastric-wall gastric-cavity operation device comprises an abdominal-wall fixing component 1, a gastric-wall fixing component 2 and an operation platform 3, wherein the abdominal-wall fixing component 1 is hollow and has an opening-shaped structure at two ends, and the middle part of the abdominal-wall fixing component 1 is telescopic; the stomach wall fixing assembly 2 comprises a circular air bag 201, an air bag air injection pipe 203 and an air bag fixing pipe 204, wherein the circular air bag 201 is positioned below the stomach wall fixing assembly 1, one end of the air bag air injection pipe 203 and one end of the air bag fixing pipe 204 are mutually communicated with the circular air bag 201, the other end of the air bag air injection pipe 203 penetrates through the stomach wall fixing assembly 1 and penetrates out of the operation platform 3, and meanwhile, a part of the end penetrating out of the operation platform 3 is provided with one-way fixing teeth 205; the lower part of the operation platform 3 is in sealing connection with the upper end of the abdominal wall fixing component 1, an operation hole, an air inlet hole 303 and an air outlet hole 304 are formed in the upper part of the operation platform 3, and the air inlet hole 303 and the air outlet hole 304 are communicated with the interior of the abdominal wall fixing component 1.
In the invention, the abdominal wall fixing assembly 1 comprises an upper incision rigid annular support 101, a lower incision rigid annular support 102 and an elastic connecting sleeve 103, wherein the elastic connecting sleeve 103 is positioned between the upper incision rigid annular support 101 and the lower incision rigid annular support 102, and the elastic connecting sleeve 103 is in seamless connection with the lower edge of the upper incision rigid annular support 101 and the upper edge of the lower incision rigid annular support 102. The upper rigid annular support 101 and the lower rigid annular support 102 are made of silica gel with steel wire rings inside, and the elastic connecting sleeve 103 is made of elastic plastic film materials. The elastic connecting sleeve 103 has a structure that two end ports shrink towards the middle, the diameter of the upper end port and the lower end port is 5cm, and the diameter of the middle is 2.5cm.
In the present invention, the operation platform 3 includes an upper cover 309 and an elastic sealing ring 307, the upper cover 309 is located above the elastic sealing ring 307, the lower part of the elastic sealing ring 307 is in an opening structure, the lower edge of the elastic sealing ring 307 is in sealing connection with the rigid annular support 101 on the notch, and the rigid annular support 101 on the notch is located inside the elastic sealing ring 307. The air bag air injection pipe 203 and the air bag fixing pipe 204 penetrate from the elastic sealing ring 307, and elastic clamping grooves 308 are respectively arranged at the connection parts of the air bag air injection pipe 203 and the air bag fixing pipe 204 and the elastic sealing ring 307.
In the present invention, the upper cover 309 is provided with the operation hole, the air inlet 303 and the air outlet 304, and the operation hole is provided with a plastic duct of a unidirectional sealing valve. The operation holes comprise a 5mm operation hole A301, a 5mm operation hole B302, a 10mm operation hole 306 and a 12mm operation hole 305; wherein the elastic rubber material is filled between the operation holes.
In the invention, the distal ends of the unidirectional fixed teeth 205 are expanded, and the proximal ends of the unidirectional fixed teeth are in smooth transition with the wall of the air bag air injection pipe 203 and the air bag fixed pipe 204; the unidirectional fixing teeth 205 on the balloon injecting pipe 203 and the balloon fixing pipe 204 are respectively provided with 4-6 unidirectional fixing teeth, and the distance between each unidirectional fixing tooth and each unidirectional fixing tooth is 5mm. The outermost end of the air bag air injection pipe 203 is an air bag air injection hole 202, and a piston is arranged at a port of the air bag air injection hole 202.
The specific operation of the invention is as follows:
the lower rigid annular support 102 of the incision is placed in the abdominal cavity, the upper rigid annular support 101 of the incision is arranged outside the abdominal cavity, the upper rigid annular support 101 of the incision is turned outwards, the elastic connecting sleeve 103 can be curled and wrapped on the upper rigid annular support 101 of the incision, the elastic connecting sleeve 103 is shortened, the middle part of the elastic connecting sleeve 103 with a smaller diameter is more close to the upper rigid annular support 101 of the incision, and the outer side abdominal incision of the elastic connecting sleeve is opened and fixed by the traction action of the upper rigid annular support 101 of the elastic connecting sleeve 103, so that the abdominal wall is fixed.
Drawing out the stomach anterior wall from the abdominal wall incision, cutting an incision of about 2cm, placing the circular balloon 201 into the stomach cavity, expanding and forming the balloon after injecting gas through the balloon gas injection hole 202 and the balloon gas injection pipe 203, lifting the balloon gas injection pipe 203 and the balloon fixing pipe 204 connected with the circular balloon 201, and fixing the stomach anterior wall above the circular balloon 201 below the abdominal wall incision by engaging the unidirectional fixing teeth 205 on the balloon gas injection pipe 203 and the balloon fixing pipe 204 with the elastic clamping grooves 308 on the operation platform.
The elastic sealing ring 307 of the operation platform is manually opened, the elastic sealing ring 307 is covered on the elastic support 101 on the incision, and the operation platform is fixed by utilizing the elastic retraction effect, so that the operation space is closed. The gastric cavity is inflated by the air inlet holes 303 and the air outlet holes 304 provided in the upper cover 309, and an operation space is established. The lesion in the stomach cavity is observed by the laparoscopic lens through a 10mm operation hole 306 arranged on the upper cover 309, and the lesion in the stomach cavity is resected by different laparoscopic surgical instruments through a 5mm operation hole A301, a 5mm operation hole B302 and a 12mm operation hole 305 arranged on the upper cover.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It should be understood by those skilled in the art that the above embodiments do not limit the scope of the present invention in any way, and all technical solutions obtained by equivalent substitution and the like fall within the scope of the present invention.
The invention is not related in part to the same as or can be practiced with the prior art.
Claims (8)
1. The single-hole trans-abdominal-gastric-wall gastric-cavity operation device is characterized by comprising an abdominal-wall fixing component (1), a gastric-wall fixing component (2) and an operation platform (3), wherein the abdominal-wall fixing component (1) is hollow in the interior and has an opening-shaped structure at two ends, and meanwhile, the middle part of the abdominal-wall fixing component (1) can be stretched; the stomach wall fixing assembly (2) comprises a circular air bag (201), an air bag air injection pipe (203) and an air bag fixing pipe (204), the circular air bag (201) is positioned below the stomach wall fixing assembly (1), one end of the air bag air injection pipe (203) and one end of the air bag fixing pipe (204) are mutually communicated with the circular air bag (201), the other end of the air bag air injection pipe penetrates through the interior of the stomach wall fixing assembly (1) and penetrates out of the operation platform (3), and meanwhile, one-way fixing teeth (205) are arranged on the part of the end penetrating out of the operation platform (3); the lower part of the operation platform (3) is in sealing connection with the upper end of the abdominal wall fixing assembly (1), an operation hole, an air inlet hole (303) and an air outlet hole (304) are formed in the upper part of the operation platform (3), and the air inlet hole (303) and the air outlet hole (304) are communicated with the inside of the abdominal wall fixing assembly (1); the abdominal wall fixing assembly (1) comprises an upper rigid annular support (101) of the incision, a lower rigid annular support (102) of the incision and an elastic connecting sleeve (103), wherein the elastic connecting sleeve (103) is positioned between the upper rigid annular support (101) of the incision and the lower rigid annular support (102) of the incision, and the elastic connecting sleeve (103) is in seamless connection with the lower edge of the upper rigid annular support (101) of the incision and the upper edge of the lower rigid annular support (102) of the incision; the outermost end of the air bag air injection pipe (203) is an air bag air injection hole (202), and a piston is arranged at the port of the air bag air injection hole (202).
2. The single-hole trans-abdominal-wall trans-gastric-wall gastric-cavity operation device according to claim 1, wherein the incision upper rigid annular support (101) and the incision lower rigid annular support (102) are silica gel with steel wire rings for supporting, and the elastic connecting sleeve (103) is made of elastic plastic film materials.
3. A single-hole trans-abdominal trans-gastric endoluminal surgical device according to claim 1 or 2, characterized in that the elastic connecting sleeve (103) has a two-end port-to-middle contracted structure, and the upper and lower port diameters are 5cm, and the middle diameter is 2.5cm.
4. A single-hole trans-abdominal-gastric-wall gastric-cavity surgical device according to claim 1, characterized in that the operating platform (3) comprises an upper cover (309) and an elastic sealing ring (307), the upper cover (309) is located above the elastic sealing ring (307), the lower part of the elastic sealing ring (307) is in an opening structure, the lower edge of the elastic sealing ring is in sealing connection with the rigid annular support (101) on the incision, and the rigid annular support (101) on the incision is located inside the elastic sealing ring (307).
5. A single-hole trans-abdominal-wall trans-gastric-wall intragastric surgical device according to claim 4, characterized in that the balloon inflation tube (203) and the balloon fixation tube (204) are passed out of the elastic sealing ring (307), and elastic clamping grooves (308) are respectively arranged at the connection parts of the balloon inflation tube (203) and the balloon fixation tube (204) and the elastic sealing ring (307).
6. The single-hole trans-abdominal-wall trans-gastric-wall gastric-cavity surgical device according to claim 4, wherein the upper cover (309) is provided with the operation hole, the air inlet hole (303) and the air outlet hole (304), and the operation hole is provided with a plastic hole channel for one-way sealing the valve.
7. A single-hole trans-abdominal trans-gastric endoluminal surgical device according to claim 6, characterized in that the procedure holes comprise 5mm procedure hole a (301), 5mm procedure hole B (302), 10mm procedure hole (306) and 12mm procedure hole (305); wherein the elastic rubber material is filled between the operation holes.
8. A single-hole trans-abdominal-gastric-wall intragastric surgical device according to claim 1, characterized in that the distal ends of the unidirectional fixation teeth (205) are enlarged, and the proximal ends are smoothly transited with the wall of the balloon gas injection tube (203) and the balloon fixation tube (204); the one-way fixing teeth (205) on the air bag air injection pipe (203) and the air bag fixing pipe (204) are respectively provided with 4-6, and the distance between each two teeth is 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710780216.8A CN107374753B (en) | 2017-09-01 | 2017-09-01 | Single-hole trans-abdominal-wall trans-gastric-wall gastric-cavity operation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710780216.8A CN107374753B (en) | 2017-09-01 | 2017-09-01 | Single-hole trans-abdominal-wall trans-gastric-wall gastric-cavity operation device |
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| Publication Number | Publication Date |
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| CN107374753A CN107374753A (en) | 2017-11-24 |
| CN107374753B true CN107374753B (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710780216.8A Active CN107374753B (en) | 2017-09-01 | 2017-09-01 | Single-hole trans-abdominal-wall trans-gastric-wall gastric-cavity operation device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108852523B (en) * | 2018-05-18 | 2020-12-22 | 江苏蓝域创新技术投资有限公司 | Inflatable incision protective sleeve of pneumoperitoneum-free laparoscope |
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|---|---|---|---|---|
| WO2002071951A1 (en) * | 2001-03-09 | 2002-09-19 | Garza Alvarez Jose Rafael | Intragastric balloon assembly |
| CN101203187A (en) * | 2005-06-17 | 2008-06-18 | 麦克罗卡夫有限责任公司 | Device for gastric feeding and drainage via an artificial stoma |
| CN105682727A (en) * | 2013-08-05 | 2016-06-15 | 恩多-塔格斯有限责任公司 | Transabdominal gastric surgery system and method |
| CN105726070A (en) * | 2014-12-12 | 2016-07-06 | 吴进锋 | Single-site multichannel laparoscopic surgery sheath |
-
2017
- 2017-09-01 CN CN201710780216.8A patent/CN107374753B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002071951A1 (en) * | 2001-03-09 | 2002-09-19 | Garza Alvarez Jose Rafael | Intragastric balloon assembly |
| CN101203187A (en) * | 2005-06-17 | 2008-06-18 | 麦克罗卡夫有限责任公司 | Device for gastric feeding and drainage via an artificial stoma |
| CN105682727A (en) * | 2013-08-05 | 2016-06-15 | 恩多-塔格斯有限责任公司 | Transabdominal gastric surgery system and method |
| CN105726070A (en) * | 2014-12-12 | 2016-07-06 | 吴进锋 | Single-site multichannel laparoscopic surgery sheath |
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| CN107374753A (en) | 2017-11-24 |
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