CN107714121B - Nail supporting seat assembly of disposable endoluminal cutting anastomat and manufacturing method thereof - Google Patents
Nail supporting seat assembly of disposable endoluminal cutting anastomat and manufacturing method thereof Download PDFInfo
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- CN107714121B CN107714121B CN201711114873.5A CN201711114873A CN107714121B CN 107714121 B CN107714121 B CN 107714121B CN 201711114873 A CN201711114873 A CN 201711114873A CN 107714121 B CN107714121 B CN 107714121B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07278—Stapler heads characterised by its sled or its staple holder
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention relates to a nail-supporting seat component of a disposable endoluminal cutting anastomat and a manufacturing method thereof, and the nail-supporting seat component of the disposable endoluminal cutting anastomat is matched with the disposable endoluminal cutting anastomat for use, in particular to the disposable endoluminal cutting anastomat for applying a line row on intracavity tissues. Comprises a nail propping seat head, a nail propping seat and a nail propping seat cover; the front end of the nail propping seat head is provided with a nail propping seat mounting groove, the front part of the nail propping seat head is provided with a nail bin seat matching groove, and the bottom of the nail propping seat head is provided with a cutting knife mounting groove; the rear part of the nail propping seat head is provided with a connecting pipe sliding head; a nail-propping seat cover mounting groove is formed below the bottom of the front end of the nail-propping seat head; a cutting knife groove is formed in the middle of the nail propping seat, and a nail propping seat mounting section is arranged at the rear end of the nail propping seat; the nail propping seat cover is provided with a nail propping seat mounting edge, and the nail propping seat is welded and mounted; the rear end of the nail propping seat cover is provided with a nail propping seat cover mounting section which is used for being mounted in a nail propping seat cover mounting groove below the bottom of the front end of the nail propping seat head and welded and fixed.
Description
Technical Field
The invention relates to a nail-supporting seat component of a disposable endoluminal cutting anastomat and a manufacturing method thereof, and the nail-supporting seat component of the disposable endoluminal cutting anastomat is matched with the disposable endoluminal cutting anastomat for use, in particular to the disposable endoluminal cutting anastomat for applying a line row on intracavity tissues.
Background
Traditional surgical procedures include cutting, separation, ligation, hemostasis, suturing, and ultimately achieve excision of organ lesions and reconstruction of organs. The mechanical suture device can replace the traditional operation, and the excision and reconstruction of the lesion organ can be realized through the following three basic operations: 1. and (3) partition: that is, the linear suture device is used to suture the organ at a certain distance from the lesion, including the parenchymal organ, the luminal organ, the blood vessel, etc., and then the lesion organ is excised, or the linear cutting suture device is used to complete the suture and the excision at one time. 2. I.e., apposition of the tissue to be sutured, stapling with a linear stapler, such as slitting a transverse seam at the pylorus, to complete the pyloplasty. 3. By using the annular anastomat, the end-to-end anastomosis of the luminal organs such as esophagus, stomach, small intestine and colon can be conveniently performed. Gastrointestinal side anastomosis can be performed using a cutting stapler. Such as colorectal end anastomosis, esophageal gastric end side anastomosis, gastric jejunal side anastomosis, and the like.
In laparoscopic and/or endoscopic surgical procedures, the procedure is performed through a small incision or a narrow cannula inserted into a wound in the patient. In conventional or open procedures, the surgeon directly contacts the surgical site. Because of its reduced patient trauma, reduced patient recovery and significantly reduced overall cost, abdominal surgery is advantageous over open surgery. To accommodate the specific needs of both endoscopic and laparoscopic surgical procedures, endoscopic suturing devices have been developed to provide easy access to the surgical site by the surgeon. Typically, these stapling instruments include an articulatable tool member supported proximate the end of the stapling apparatus. The tool component may be selectively manipulated to enable a surgeon to manipulate the surgical device in a confined space. These instruments provide significant medical benefits to endoscopic procedures. Nevertheless, improvements in cost reduction and manufacturing complexity are still desirable.
At present, the nail-abutting seat of the disposable endoluminal incision anastomat has two forms, one is split, but the transmission parts of the nail-abutting seat are plastic parts, the strength is relatively weak, and certain risks exist during operation. The other is integral, and the transmission part is a metal part, but the processing mode is integral processing, so that the processing is complex, time-consuming and high in cost, and the method is not suitable for industrial mass production.
Disclosure of Invention
The invention aims to provide a nail supporting seat component of a disposable endoluminal cutting anastomat and a manufacturing method thereof, which are matched with the disposable endoluminal cutting anastomat for use, are arranged in a clamping anastomat device of the disposable endoluminal cutting anastomat, are double-locked by a cutting knife and a locking ring, and have larger suction force when a jaw is closed, so that a tissue clamp can be tighter, and the surgical risk caused by insufficient jaw is reduced. The disposable endoluminal incision anastomat can be operated by one hand, so that the operation is more coherent, doctors can vacate the hand to hold other instruments, the operation time is reduced, the operation risk is reduced, and the pain is reduced for patients. The nail propping seat assembly of the disposable endoscopic cutting anastomat adopts a split processing method, is formed by welding a nail propping seat head, a nail propping seat and a nail propping seat cover, wherein the nail propping seat head is manufactured by adopting a powder metallurgy process, the nail propping seat and the nail propping seat cover are formed by adopting a die for stamping, and finally are welded into a whole by adopting laser, so that the processing difficulty is reduced, the cost is reduced, and the batch production can be realized.
The nail supporting seat assembly of the disposable endoluminal incision anastomat and the manufacturing method thereof are realized by adopting the following technical proposal:
the nail supporting seat component of the disposable endoluminal cutting anastomat comprises a nail supporting seat head, a nail supporting seat and a nail supporting seat cover. The nail propping seat head is provided with a nail propping seat mounting groove on the bottom of the front end, a nail bin seat matching groove is arranged on the front part of the nail propping seat head, and a cutting knife mounting groove is arranged on the bottom of the nail propping seat head and used for mounting a cutting knife. The rear part of the nail propping seat head is provided with a connecting pipe sliding head which is cylindrical and is used for sleeving a connecting pipe, and the connecting pipe can slide on the connecting pipe sliding head; the connecting pipe sliding head is provided with a nail bin seat mounting hole and a nail propping seat pin mounting hole, and a nail propping seat cover mounting groove is formed below the bottom of the front end of the nail propping seat head.
The middle part of the nail supporting seat is provided with a cutting knife groove for sliding of a cutting knife; the nail propping seat rear end is provided with a nail propping seat mounting section, and both sides of the nail propping seat mounting section are provided with mounting inclined planes for being matched and mounted in a nail propping seat mounting groove of the nail propping seat head and welded and fixed. The middle part of the nail propping seat mounting section is provided with a nail propping seat mounting section connecting block for connecting two sides of the nail propping seat, when the nail propping seat is processed, the flatness of the nail propping seat surface is ensured, after the nail propping seat welding assembly is completed, the nail propping seat is cut off again, and the smooth sliding of the cutting knife is ensured. The nail supporting seat is provided with a nail forming groove for forming the nail.
The nail propping seat cover is provided with a nail propping seat mounting edge for welding and mounting the nail propping seat. The rear end of the nail-propping seat cover is provided with a nail-propping seat cover mounting section which is used for being mounted in a nail-propping seat cover mounting groove below the bottom of the front end of the nail-propping seat head and welded and fixed. The nail propping seat cover is arc-shaped as a whole, the head part is conical, and the middle part is a cavity after being welded with the nail propping seat, so that the cutting knife can slide conveniently.
The nail propping seat is installed in the nail propping seat installation groove of the nail propping seat head in a matched manner through the installation inclined planes on two sides of the nail propping seat installation section, the nail propping seat cover installation section at the rear end of the nail propping seat cover is installed in the nail propping seat cover installation groove below the bottom of the front end of the nail propping seat head, and meanwhile the nail propping seat installation edge on the nail propping seat cover is matched with the bottom of the nail propping seat. After placing, the nail propping seat head and the nail propping seat cover are welded and fixed into a whole by adopting laser welding.
The manufacturing method of the nail supporting seat component of the disposable endoluminal cutting anastomat comprises the following steps:
1. the nail-propping seat head is manufactured by using a powder metallurgy injection molding machine, firstly evenly mixing solid powder and an organic binder, granulating, injecting into a mold cavity by using the injection molding machine under a heating plasticizing state for solidification molding, then removing the binder in a formed blank by using a thermal decomposition method, wherein the thermal decomposition temperature is 250-300 ℃, finally obtaining a product through sintering densification, the sintering temperature is 1200-1400 ℃, cooling, and then removing burrs for finishing, thus obtaining the final product of the nail-propping seat head.
The weight ratio of the metal powder to the organic binder is 22:2-3.
The metal powder adopts stainless steel powder of 1Crl3, 2Crl3, 1Crl7Mo, 00Cr18Nil0, 00Cr17Nil4M02 or OCrl7N14Cu4 Nb. The organic binder is selected from wax-based binder, vinyl copolymer, oil-based binder, polyaldehyde-based binder, aqueous binder, gel water-based system binder or acrylic-based binder.
2. And manufacturing the nail propping seat, namely obtaining a nail propping seat blank by adopting a blanking die through a punching machine, simultaneously cutting a knife slot for punching and forming, and then adopting a forming die to press out a anastomotic nail forming slot. The blanking adopts a 60-ton punch press, and the molding adopts a 200-ton press. The nail supporting seat is made of 2Cr13 material, and the heat treatment hardness is 42-46HRC.
3. And manufacturing the nail-propping seat cover, namely obtaining a nail-propping seat cover blank by adopting a blanking die through a punching machine, and extruding the radian of the nail-propping seat cover by adopting a forming die to obtain the finished product of the nail-propping seat cover. The blanking adopts a 60-ton punch press, and the molding adopts a 200-ton press. The nail supporting seat cover is made of 2Cr13 material, and the heat treatment hardness is 42-46HRC.
4. Adopt welding frock, will support earlier and place on the frock to will support the nail seat head again and place on the frock to will support the nail seat and pass through the installation inclined plane that supports nail seat installation section both sides, the cooperation is installed in supporting nail seat mounting groove of nail seat head, put into at last and support the nail seat lid, and will support the nail seat lid installation section of nail seat lid rear end and install in supporting nail seat lid mounting groove that supports the front end bottom of nail seat head below, support simultaneously and support the nail seat installation limit cooperation on the nail seat lid and support the nail seat bottom. After the setting, the laser welding is carried out under the protection of argon, the instant temperature of the molten pool is 1250 ℃ to 1350 ℃, and the nail propping seat, the nail propping seat head and the nail propping seat cover are welded and fixed into a whole.
5. After the nail supporting seat welding assembly is completed, the connecting block of the nail supporting seat installation section arranged in the middle of the nail supporting seat installation section is cut off, so that the cutting knife can slide smoothly.
6. And polishing, ultrasonically cleaning and drying the nail supporting seat assembly at the temperature of 40-60 ℃ to obtain a finished product of the nail supporting seat assembly of the disposable endoscopic stitching instrument.
Principle of operation
The nail supporting seat component of the disposable endoluminal cutting anastomat is matched with the disposable endoluminal cutting anastomat for use, is arranged in the clamping anastomat of the disposable endoluminal cutting anastomat, presses the movable handle, and the connecting pipe slides on the connecting pipe sliding head of the nail supporting seat head, and simultaneously the cutting knife slides forwards, so that the jaw is closed and clamped, and the operation is started.
During operation, the nail propping seat is inserted into the tissue, the nail bin seat, the anastomat in the nail bin seat and the like are closed to clamp the tissue, so that the anastomat in the nail bin is not contacted with the tissue before clamping anastomosis, the anastomat in the nail bin is not brought out of the tissue when being contacted with the tissue, the operation risk is reduced, and on the other hand, the thickness of the nail propping seat is smaller than that of the nail bin seat, the nail propping seat is used as a fixing piece to be inserted into the tissue, the required space is smaller, the pain caused by the operation is reduced, and the requirement of the minimally invasive operation can be met. The transmission part is all metal parts, so that the strength is stronger when the clamping is performed, and the risk of opening the jaw in operation is reduced.
The manufacturing method of the nail supporting seat component of the disposable endo-endoscopic anastomat is reasonable in design, the nail supporting seat head is manufactured by adopting powder metallurgy, the powder metallurgy technology can rapidly manufacture structural parts with high density, high precision and three-dimensional complex shape, the design concept can be rapidly and accurately differentiated into products with certain structural and functional characteristics, the parts can be directly produced in batches, and the process technology has the advantages of few procedures, no cutting or less cutting, high economic benefit and the like, and is particularly suitable for mass production of small, complex and special-requirement metal parts.
The nail supporting seat component of the disposable endoscopic cutting anastomat adopts a punching machine to manufacture a nail supporting seat and a nail supporting seat cover, the punching production efficiency is high, the operation is convenient, the mechanization and the automation are easy to realize, the size and the shape precision of a stamping part are ensured by a die during the punching, the surface quality of the stamping part is not damaged generally, the service life of the die is longer generally, the quality of the stamping is stable, the interchangeability is good, and the die has the characteristic of 'one die'. The stamping is generally free from chippings and scraps, the consumption of materials is less, and other heating equipment is not needed, so that the stamping is a material-saving and energy-saving processing method, and the cost of the stamping is lower.
The nail supporting seat component of the disposable endoluminal cutting anastomat is a new revolution in the manufacturing technology industry. The process technology not only has the advantages of few processes, no cutting or less cutting, high economic benefit and the like of the conventional powder metallurgy process, but also overcomes the defects of non-uniform materials, low mechanical property, difficult molding of thin walls and complex structures of the conventional powder metallurgy process products, and is particularly suitable for mass production of small, complex and metal parts with special requirements.
The nail propping seat assembly of the disposable endoscopic cutting anastomat adopts a split processing method, is formed by welding a nail propping seat head, a nail propping seat and a nail propping seat cover, wherein the nail propping seat head is manufactured by adopting a powder metallurgy process, the nail propping seat and the nail propping seat cover are formed by adopting a die for stamping, and finally are welded into a whole by adopting laser, so that the processing difficulty is reduced, the cost is reduced, and the batch production can be realized.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic view of the staple holder assembly of a disposable endo-endoscopic stapler;
FIG. 2 is a schematic view of a staple holder head of a staple holder assembly of the disposable endo-endoscopic stapler;
FIG. 3 is a bottom view of the staple holder head of the staple holder assembly of the disposable endo-endoscopic stapler;
FIG. 4 is a schematic view of the staple holder structure of the staple holder assembly of the disposable endo-endoscopic stapler;
fig. 5 is a schematic view of the staple holder cover of the staple holder assembly of the disposable endo-endoscopic stapler.
Detailed Description
Referring to fig. 1-5, a nail propping seat assembly of the disposable endo-endoscopic stapler comprises a nail propping seat head 2, a nail propping seat 1 and a nail propping seat cover 3. The nail propping seat head 2 is provided with a nail propping seat mounting groove 2-1 on the bottom of the front end, a nail bin seat matching groove 2-2 is arranged on the front part of the nail propping seat head 2, and a cutting knife mounting groove 2-3 is arranged on the bottom of the nail propping seat head 2 and used for mounting a cutting knife. The rear part of the nail supporting seat head 2 is provided with a connecting pipe sliding head 2-4, and the connecting pipe sliding head 2-4 is cylindrical and is used for sleeving a connecting pipe, and the connecting pipe can slide on the connecting pipe sliding head; the connecting pipe sliding head 2-4 is provided with a nail bin seat mounting hole 2-5 and a nail abutting seat pin mounting hole 2-6, and a nail abutting seat cover mounting groove 2-7 is arranged below the bottom of the front end of the nail abutting seat head 2.
The middle part of the nail supporting seat 1 is provided with a cutting knife groove 1-1 for sliding of a cutting knife; the rear end of the nail propping seat 1 is provided with a nail propping seat mounting section 1-2, and both sides of the nail propping seat mounting section 1-2 are provided with mounting inclined planes 1-3 for being matched and mounted in a nail propping seat mounting groove 2-1 of a nail propping seat head and welded and fixed. The middle part of the nail propping seat mounting section 1-2 is provided with a nail propping seat mounting section connecting block 1-5 which is used for connecting two sides of a nail propping seat, ensuring the planeness of the nail propping seat surface when the nail propping seat is processed, and ensuring that the cutting knife can smoothly slide after the nail propping seat welding assembly is completed. The nail supporting seat is provided with a nail forming groove 1-4 for forming the nail.
The nail propping seat cover 3 is provided with a nail propping seat mounting edge 3-1 for welding and mounting a nail propping seat. The rear end of the nail-propping seat cover 3 is provided with a nail-propping seat cover mounting section 3-2 which is used for being mounted in a nail-propping seat cover mounting groove 2-7 below the bottom of the front end of the nail-propping seat head 2 and welded and fixed. The nail propping seat cover 3 is arc-shaped as a whole, the head part is conical, and the middle part is a cavity after being welded with the nail propping seat 1, so that the cutting knife can slide conveniently.
The nail propping seat 1 is installed in the nail propping seat installation groove 2-1 of the nail propping seat head 2 in a matched manner through the installation inclined planes 1-3 on the two sides of the nail propping seat installation section 1-2, the nail propping seat cover installation section 3-2 at the rear end of the nail propping seat cover 3 is installed in the nail propping seat cover installation groove 2-7 below the bottom of the front end of the nail propping seat head 2, and meanwhile, the nail propping seat installation edge on the nail propping seat cover 3 is matched with the bottom of the nail propping seat. After placing, the nail propping seat 1, the nail propping seat head 2 and the nail propping seat cover 3 are welded and fixed into a whole by adopting laser welding.
The manufacturing method of the nail supporting seat component of the disposable endoluminal cutting anastomat comprises the following steps:
1. the nail-propping seat head 2 is manufactured by a powder metallurgy injection molding machine, a mold is used, solid powder and an organic binder are firstly evenly mixed, and are injected into a mold cavity for solidification molding by the injection molding machine in a heating plasticizing state after being pelletized, the heating plasticizing temperature is 120-150 ℃, then the binder in a molded blank is removed by a thermal decomposition method, the thermal decomposition temperature is 250-300 ℃, finally the product is obtained by sintering densification, the sintering temperature is 1200-1400 ℃, and the final product of the nail-propping seat head is obtained after deburring and trimming treatment.
The weight ratio of the metal powder to the organic binder is 22:2-3.
The metal powder adopts stainless steel powder of 1Crl3, 2Crl3, 1Crl7Mo, 00Cr18Nil0, 00Cr17Nil4M02 or OCrl7N14Cu4 Nb. The organic binder is selected from wax-based binder, vinyl copolymer, oil-based binder, polyaldehyde-based binder, aqueous binder, gel water-based system binder or acrylic-based binder.
2. The nail propping seat 1 is manufactured, a blanking die is adopted through a punching machine, a nail propping seat blank is obtained, meanwhile, a cutting knife groove is formed in a punching mode, and then a forming die is adopted to press out a anastomotic nail forming groove. The blanking adopts a 60-ton punch press, and the molding adopts a 200-ton press. The nail supporting seat is made of 2Cr13 material, and the heat treatment hardness is 42-46HRC.
3. And manufacturing the nail propping seat cover 3, adopting a blanking die to obtain a nail propping seat cover blank, and adopting a forming die to extrude the radian of the nail propping seat cover to obtain a finished product of the nail propping seat cover. The blanking adopts a 60-ton punch press, and the molding adopts a 200-ton press. The nail supporting seat cover is made of 2Cr13 material, and the heat treatment hardness is 42-46HRC.
4. The welding fixture is adopted, the nail propping seat 1 is firstly placed on the fixture, the nail propping seat head 2 is then placed on the fixture, the nail propping seat 1 is matched and installed in the nail propping seat installation groove 2-1 of the nail propping seat head 2 through the installation inclined planes 1-3 on two sides of the nail propping seat installation section 1-2, finally the nail propping seat cover 3 is placed in, the nail propping seat cover installation section 3-2 at the rear end of the nail propping seat cover is installed in the nail propping seat cover installation groove 2-7 below the bottom of the front end of the nail propping seat head, and meanwhile the nail propping seat installation edge on the nail propping seat cover 3 is matched at the bottom of the nail propping seat 1. After the setting, the laser welding is carried out under the protection of argon, the instant temperature of the molten pool is 1250 ℃ to 1350 ℃, and the nail propping seat 1, the nail propping seat head 2 and the nail propping seat cover 3 are welded and fixed into a whole.
5. After the nail supporting seat welding assembly is completed, the nail supporting seat mounting section connecting blocks 1-5 arranged in the middle of the nail supporting seat mounting sections 1-2 are cut off, and smooth sliding of the cutting knife is ensured.
6. And polishing, ultrasonically cleaning and drying the nail supporting seat assembly, wherein the drying temperature is 40-60 ℃ to prepare a finished product of the nail supporting seat assembly of the disposable endoscopic cutting anastomat.
Claims (9)
1. A nail supporting seat assembly of a disposable endo-endoscopic stapler, which is characterized in that: comprises a nail propping seat head, a nail propping seat and a nail propping seat cover; the front end of the nail propping seat head is provided with a nail propping seat mounting groove, the front part of the nail propping seat head is provided with a nail bin seat matching groove, and the bottom of the nail propping seat head is provided with a cutting knife mounting groove for mounting a cutting knife; the rear part of the nail propping seat head is provided with a connecting pipe sliding head; the connecting pipe sliding head is provided with a nail bin seat mounting hole and a nail propping seat pin mounting hole, and a nail propping seat cover mounting groove is formed below the bottom of the front end of the nail propping seat head;
the middle part of the nail supporting seat is provided with a cutting knife groove for sliding of a cutting knife; the rear end of the nail propping seat is provided with a nail propping seat mounting section, and both sides of the nail propping seat mounting section are provided with mounting inclined planes which are used for being matched and mounted in a nail propping seat mounting groove of the nail propping seat head and are welded and fixed;
the nail propping seat cover is provided with a nail propping seat mounting edge for welding and mounting the nail propping seat; the rear end of the nail-propping seat cover is provided with a nail-propping seat cover mounting section which is used for being mounted in a nail-propping seat cover mounting groove below the bottom of the front end of the nail-propping seat head and welded and fixed;
the nail propping seat is matched and installed in a nail propping seat installation groove of the nail propping seat head through installation inclined planes at two sides of the nail propping seat installation section, the nail propping seat cover installation section at the rear end of the nail propping seat cover is installed in a nail propping seat cover installation groove below the bottom of the front end of the nail propping seat head, and meanwhile, the nail propping seat installation edge on the nail propping seat cover is matched at the bottom of the nail propping seat, after the nail propping seat is placed, the nail propping seat head and the nail propping seat cover are welded and fixed into a whole by adopting laser welding;
the manufacturing method of the nail supporting seat component of the disposable endoluminal cutting anastomat comprises the following steps of
(1) The manufacturing of the nail-propping seat head, namely uniformly mixing metal powder and an organic binder by using a powder metallurgy injection molding machine, granulating, injecting the mixture into a mold cavity by using the injection molding machine under a heating plasticizing state for solidification molding, removing the binder in a molded blank by using a thermal decomposition method, wherein the thermal decomposition temperature is 250-300 ℃, finally obtaining a product by sintering densification, and cooling at 1200-1400 ℃, and obtaining a final product of the nail-propping seat head after deburring finishing treatment;
(2) Manufacturing a nail propping seat, adopting a blanking die to obtain a nail propping seat blank, simultaneously cutting a knife slot for stamping and forming, and then adopting a forming die to press out a anastomotic nail forming slot;
(3) Manufacturing a nail propping seat cover, adopting a blanking die to obtain a nail propping seat cover blank, and adopting a forming die to extrude the radian of the nail propping seat cover to obtain a finished product of the nail propping seat cover;
(4) The welding fixture is adopted, the nail propping seat is firstly placed on the fixture, then the nail propping seat head is placed on the fixture, the nail propping seat is matched and installed in the nail propping seat installation groove of the nail propping seat head through the installation inclined planes at two sides of the nail propping seat installation section, finally the nail propping seat cover is placed, the nail propping seat cover installation section at the rear end of the nail propping seat cover is installed in the nail propping seat cover installation groove below the front end bottom of the nail propping seat head, meanwhile, the nail propping seat installation edge on the nail propping seat cover is matched at the bottom of the nail propping seat, after the nail propping seat is placed, laser welding is carried out under the condition of argon protection, and the instant temperature of a solution pool is 1250-1350 ℃, and the nail propping seat, the nail propping seat head and the nail propping seat cover are welded and fixed into a whole;
(5) After the nail supporting seat welding assembly is completed, a connecting block of a nail supporting seat mounting section arranged in the middle of the nail supporting seat mounting section is cut off, so that the cutting knife can slide smoothly;
(6) And polishing, ultrasonically cleaning and drying the nail supporting seat assembly, wherein the drying temperature is 40-60 ℃, and the finished product of the nail supporting seat assembly of the disposable endoscopic cutting anastomat is manufactured.
2. The staple holder assembly of a disposable endo-endoscopic stapler of claim 1, wherein: the connecting pipe sliding head is cylindrical and is used for sleeving the connecting pipe, and the connecting pipe can slide on the connecting pipe sliding head.
3. The staple holder assembly of a disposable endo-endoscopic stapler of claim 1, wherein: the nail supporting seat is provided with a nail forming groove for forming the nail.
4. The staple holder assembly of a disposable endo-endoscopic stapler of claim 1, wherein: the middle part of the nail propping seat mounting section is provided with a nail propping seat mounting section connecting block for connecting two sides of the nail propping seat, when the nail propping seat is processed, the flatness of the nail propping seat surface is ensured, after the nail propping seat welding assembly is completed, the nail propping seat is cut off again, and the smooth sliding of the cutting knife is ensured.
5. The staple holder assembly of a disposable endo-endoscopic stapler of claim 1, wherein: the nail propping seat cover is arc-shaped as a whole, the head part is conical, and the middle part is a cavity after being welded with the nail propping seat, so that the cutting knife can slide conveniently.
6. The staple holder assembly of a disposable endo-endoscopic stapler of claim 1, wherein: the weight ratio of the metal powder to the organic binder is 22:2-3.
7. The staple holder assembly of a disposable endo-endoscopic stapler of claim 1, wherein: the metal powder adopts stainless steel powder of 1Crl3, 2Crl3, 1Crl7Mo, 00Cr18Nil0, 00Cr17Nil4M02 or OCrl7N14Cu4 Nb.
8. The staple holder assembly of a disposable endo-endoscopic stapler of claim 1, wherein: the organic binder is selected from wax-based binder, vinyl copolymer, oil-based binder, polyaldehyde-based binder, aqueous binder, gel water-based system binder or acrylic-based binder.
9. The staple holder assembly of a disposable endo-endoscopic stapler of claim 1, wherein: the nail propping seat is made of 2Cr13 material, and the heat treatment hardness is 42-46HRC; the nail supporting seat cover is made of 2Cr13 material, and the heat treatment hardness is 42-46HRC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711114873.5A CN107714121B (en) | 2017-11-13 | 2017-11-13 | Nail supporting seat assembly of disposable endoluminal cutting anastomat and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711114873.5A CN107714121B (en) | 2017-11-13 | 2017-11-13 | Nail supporting seat assembly of disposable endoluminal cutting anastomat and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107714121A CN107714121A (en) | 2018-02-23 |
| CN107714121B true CN107714121B (en) | 2023-06-13 |
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| CN108742790B (en) * | 2018-07-10 | 2023-09-05 | 常州市康蒂娜医疗科技有限公司 | Nail propping seat of sheet metal structure circular cutting anastomat and manufacturing method thereof |
| US11045192B2 (en) * | 2018-08-20 | 2021-06-29 | Cilag Gmbh International | Fabricating techniques for surgical stapler anvils |
| CN111374724B (en) * | 2018-12-29 | 2021-09-07 | 江苏风和医疗器材股份有限公司 | Preparation process of suturing nail forming part |
| CN111202554A (en) * | 2020-02-25 | 2020-05-29 | 江苏集萃微纳自动化系统与装备技术研究所有限公司 | Nail pushing plate matched with suturing nail and manufacturing method |
| CN112587189A (en) * | 2020-11-16 | 2021-04-02 | 美科特医疗科技(苏州)有限公司 | Stapler nail abutting seat assembly and manufacturing method thereof |
| CN113648007A (en) * | 2021-08-16 | 2021-11-16 | 昆山振金精密科技有限公司 | Stapler nail abutting seat assembly and processing and manufacturing method thereof |
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| JPH0833642A (en) * | 1994-02-25 | 1996-02-06 | Ethicon Endo Surgery Inc | Improved anvil receiving port for surgical stapler |
| CN201227300Y (en) * | 2008-06-20 | 2009-04-29 | 华外医疗器械(上海)有限公司 | Titanium-nail constant-height ensuring device for Endo-GIA |
| CN201683944U (en) * | 2010-06-07 | 2010-12-29 | 常州威克医疗器械有限公司 | Integrated nail resisting base for disposable straight cutting anastomat |
| US8479968B2 (en) * | 2011-03-10 | 2013-07-09 | Covidien Lp | Surgical instrument buttress attachment |
| CN102178552B (en) * | 2011-06-10 | 2012-12-12 | 常州威克医疗器械有限公司 | Replaceable stapling and cutting devices of disposable endo-GIA (gastrointestinal anastomosis) stapler |
| US9675351B2 (en) * | 2011-10-26 | 2017-06-13 | Covidien Lp | Buttress release from surgical stapler by knife pushing |
| CN103169513B (en) * | 2011-12-21 | 2015-02-11 | 常州市康迪医用吻合器有限公司 | Clamping thickness adjusting mechanism of surgery linear cutting anastomat |
| AU2013206804B2 (en) * | 2012-08-15 | 2017-12-07 | Covidien Lp | Buttress attachment to degradable polymer zones |
| CN203029298U (en) * | 2012-09-18 | 2013-07-03 | 上海逸思医疗科技有限公司 | Improved surgical instrument and actuator thereof |
| CN102885641B (en) * | 2012-09-18 | 2015-04-01 | 上海逸思医疗科技有限公司 | Improved performer for surgical instruments |
| CN103230288B (en) * | 2013-05-09 | 2016-01-06 | 常州威克医疗器械有限公司 | The nail bin seat of disposable intracavity Endo-GIA |
| JP6567569B2 (en) * | 2014-06-10 | 2019-08-28 | エシコン エルエルシーＥｔｈｉｃｏｎ ＬＬＣ | Apparatus and method for sealing staples in tissue |
| CN204072199U (en) * | 2014-09-01 | 2015-01-07 | 江苏博朗森思医疗器械有限公司 | The split type nail supporting base assembly of Endo-GIA |
| EP3586772B1 (en) * | 2015-04-20 | 2023-11-08 | Medi Tulip Co., Ltd. | Surgical linear stapler |
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