A kind of abdominal cavity accurate operation looping and binding device for scopeTechnical field
The present invention relates to minimally invasive medical technique with the apparatus field, be specifically related to a kind of abdominal cavity accurate operation looping and binding device for scope.
Background technology
Universal along with the various endoscopic surgery of hospital, how secure ligation under the mirror of chamber, reduces tissue injury and complication, shorten operating time, reduce learning curve, improve surgical effect, improve surgical quality, save surgery cost to greatest extent, reduce the important research work that technique approval condition becomes, still the method following external knotting under mesh front cavity mirror, relatively big owing to sewing up operation easier under the mirror of chamber during ligation, the most time-consuming more, operation inconvenience, ligation effect is the most unreliable.
Summary of the invention
In order to overcome shortcoming and defect present in prior art, it is an object of the invention to provide a kind of abdominal cavity accurate operation looping and binding device for scope, this looping and binding device simple in construction, economical and practical, it is not necessary to too much complex operations, shorten operating time, ligature reliable for effect.
The purpose of the present invention is achieved through the following technical solutions: a kind of abdominal cavity accurate operation looping and binding device for scope, and described looping and binding device includes barred body, is opened in being available for knotting hole that silk thread passes, being arranged at the take-up pulley for rolling silk thread of barred body rear end of barred body front end.
Preferably, the front end of described barred body is provided with a spoonful connected in star, and described knotting hole is arranged at the front end of spoonful connected in star；The lateral wall of described barred body offers the trough for housing silk thread；A diameter of 0.5cm of described barred body, a length of 40-50cm of described barred body；The aperture in described knotting hole is 0.4-0.8mm.Because of mirror sheath only 5cm diameter, silk thread is attached to barred body outside obstruction barred body and enters mirror sheath and affect operation, and arranging of trough can imbed silk thread, does not affect the external diameter of barred body.The nose circle of described barred body is blunt, and described knotting hole can not be tied by the line of corresponding silk thread.
Preferably, be provided with can the locking device of clamping silk thread for described take-up pulley；Described take-up pulley is provided with can the handle of tightened wire.Described locking device is bayonet unit commonly used in the art or other locking device that take-up pulley can be made to block, locking device be provided for take-up after card fasten, prevent silk thread loosen.The setting of handle is easy to collect and tightened wire.
Preferably, described barred body is prepared by medical stainless steel material, described medical stainless steel material includes the chemical element of following percentage by weight: C:0.1-0.2%, Si:0.6-1%, Mn:6-12%, Al:0.1-0.5%, Cr:14-18%, Ni:1-5%, N:0.5-1%, Mo:2.5-3.5%, Cu:1-1.5%, Ti:0.1-0.5%, Zr:0.01-0.05%, Re:0.01-0.05%, P≤0.01%, S≤0.01%, surplus is Fe.
Preferably, described medical stainless steel material includes the chemical element of following percentage by weight: C:0.12-0.18%, Si:0.7-0.9%, Mn:8-10%, Al:0.2-0.4%, Cr:15-17%, Ni:2-4%, N:0.7-0.9%, Mo:2.8-3.2%, Cu:1.1-1.3%, Ti:0.2-0.4%, Zr:0.02-0.04%, Re:0.02-0.04%, P≤0.008%, S≤0.008%, surplus is Fe.
Preferably, described medical stainless steel material includes the chemical element of following percentage by weight: C:0.15%, Si:0.8%, Mn:9%, Al:0.3%, Cr:16%, Ni:3%, N:0.8%, Mo:3%, Cu:1.2%, Ti:0.3%, Zr:0.03%, Re:0.03%, P≤0.005%, S≤0.005%, surplus is Fe.
The barred body of the present invention is prepared by medical stainless steel material, measures performance without toxicity nickel element, cytotoxicity and pyrogen good, has excellent mechanical property, good resistance to corrosion, the most anti-spot corrosion and anti intercrystalline corrosion, and have higher wearability.
Preferably, the preparation method of described barred body comprises the steps:
(1) melting: nitrogen is protected, and according to proportioning refine at 1400-1450 DEG C of above-mentioned chemical composition, nitrogen pressure is maintained at 0.3-0.4MPa; pouring temperature 1400-1420 DEG C; obtain vacuum ingot, then blanketing with inert gas electroslag remelting, obtain the ESR ingot that surface quality is more smooth；
(2) Homogenization Treatments: by ESR ingot Homogenization Treatments 5-7h at 1000-1040 DEG C；
(3) forging: forging initial temperature 1000-1040 DEG C, final forging temperature is 900-940 DEG C, obtains forging stock；
(4) hot rolling: forging stock is heated to 1000-1040 DEG C, hot rolling becomes bar, and air cooling is to room temperature；
(5) cold drawn: by cold drawn for bar one-tenth wire rod, processing obtains barred body.
Preferably, in described step (5), time cold drawn, 1050-1080 DEG C of annealing is used to eliminate processing hardening.
The preparation method of the barred body of the present invention uses melting, Homogenization Treatments, forging, hot rolling and the step such as cold rolling, all can improve stainless intensity, and reduces the production cost of high-strength stainless steel finished product, and has preferable plasticity, meets the needs of deformation processing.
Preferably, the electroplating surface of described barred body has PdFe alloy modification coating, the preparation method of described PdFe alloy modification coating is: by filtered cathode vacuum arc technique, high-purity Pd and high-purity Fe is sequentially depositing on barred body surface one layer of Pd and Fe thin film, film thickness is respectively as follows: Fe film 4-6 μm, Pd film 1-3 μm, and formed Pd film and Fe film reacted by abundant counterdiffusion and form PdFe alloy modification coating.
Preferably; the preparation method of described PdFe alloy modification coating is particularly as follows: use filtered cathode vacuum arc technique; cathode arc target selects high purity iron and High Purity Palladium to make target; when barred body surface temperature reaches 100-120 DEG C, carry out filtered cathode vacuum arc, set Ar gas shielded air pressure 0.4-0.6Pa; workpiece back bias voltage 100-110V; arc current 80-90A, the sedimentation rate that sedimentation rate is 0.8-1 μm/min, Pd film controlling Fe film is 0.2-0.4 μm/min；The plated film time is respectively as follows: Fe film 8-16min, Pd film 2-6min；Then carrying out diffusion in vacuum heat treatment, processing technique is that heating under vacuum 700-900 DEG C is incubated 18-24min.
The barred body electroplating surface of the present invention has PdFe alloy modification coating, has that film thickness is uniform, adhesive force strong, a good biocompatibility have the features such as certain magnetic property.
The beneficial effects of the present invention is: the looping and binding device of the present invention uses the take-up pulley for rolling silk thread, it is possible to reduce the operating difficulty of knotting under mirror, simple in construction, economical and practical, it is not necessary to too much complex operations, shorten operating time, ligature reliable for effect.
The looping and binding device of the present invention has the advantage that 1, reduces the operating difficulty of knotting under mirror；2, ligature firm；3, easy to operate quickly, save operating time；4, lossless, it is not necessary to maintenance；5, expense is saved；6, remain without metallic foreign body；7, can be used for the ligation of fine pipeline tissue: such as the process of appendiceal stump, blood vessel, cystic duct, gallbladder arteriovenous etc.；8, vascular ligation operation is being carried out without the hospital of ultrasound knife is alternative.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Reference is: 1 barred body, 11 spoonfuls of connected in stars, 12 troughs, 2 knotting hole, 3 take-up pulleies, 31 locking devices, 32 handles.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, below in conjunction with embodiment and accompanying drawing 1, the present invention is further illustrated, the content that embodiment is mentioned not limitation of the invention.
Embodiment 1
Seeing Fig. 1, a kind of abdominal cavity accurate operation looping and binding device for scope, described looping and binding device includes barred body 1, is opened in being available for knotting hole 2 that silk thread passes, being arranged at the take-up pulley 3 for rolling silk thread of barred body 1 rear end of barred body 1 front end.
In the present embodiment, the front end of described barred body 1 is provided with spoonful connected in star 11, and described knotting hole 2 is arranged at the front end of spoonful connected in star 11；The lateral wall of described barred body 1 offers the trough 12 for housing silk thread；A diameter of 0.5cm of described barred body 1, a length of 40cm of described barred body 1；The aperture in described knotting hole 2 is 0.4mm.
In the present embodiment, described take-up pulley 3 is provided with can the locking device 31 of clamping silk thread；Described take-up pulley 3 is provided with can the handle 32 of tightened wire.
The looping and binding device of the present invention uses the take-up pulley 3 for rolling silk thread, it is possible to reduce the operating difficulty of knotting under mirror, and simple in construction is economical and practical, it is not necessary to too much complex operations, shortens operating time, ligatures reliable for effect.
When the looping and binding device of the present invention uses, mentioning ligation tissue, be inserted in binding circle by looping and binding device, strain at correct position looping and binding device silk thread, being normally carried out ties a knot for the second time i.e. completes ligation operation.
The looping and binding device of the present invention has the advantage that 1, reduces the operating difficulty of knotting under mirror；2, ligature firm；3, easy to operate quickly, save operating time；4, lossless, it is not necessary to maintenance；5, expense is saved；6, remain without metallic foreign body；7, can be used for the ligation of fine pipeline tissue: such as the process of appendiceal stump, blood vessel, cystic duct, gallbladder arteriovenous etc.；8, vascular ligation operation is being carried out without the hospital of ultrasound knife is alternative.
In the present embodiment, described barred body 1 is prepared by medical stainless steel material, described medical stainless steel material includes the chemical element of following percentage by weight: C:0.1%, Si:0.6%, Mn:6%, Al:0.1%, Cr:14%, Ni:1%, N:0.5%, Mo:2.5%, Cu:1%, Ti:0.1%, Zr:0.01%, Re:0.01%, P≤0.01%, S≤0.01%, surplus is Fe.
The barred body 1 of the present invention is prepared by medical stainless steel material, measures performance without toxicity nickel element, cytotoxicity and pyrogen good, has excellent mechanical property, good resistance to corrosion, the most anti-spot corrosion and anti intercrystalline corrosion, and have higher wearability.
The preparation method of described barred body 1 comprises the steps:
(1) melting: nitrogen is protected, and according to proportioning refine at 1400 DEG C of above-mentioned chemical composition, nitrogen pressure is maintained at 0.3MPa, pouring temperature 1400 DEG C, obtains vacuum ingot, then blanketing with inert gas electroslag remelting, obtains the ESR ingot that surface quality is more smooth；
(2) Homogenization Treatments: by ESR ingot Homogenization Treatments 5h at 1000 DEG C；
(3) forging: forging initial temperature 1000 DEG C, final forging temperature is 900 DEG C, obtains forging stock；
(4) hot rolling: forging stock is heated to 1000 DEG C, hot rolling becomes bar, and air cooling is to room temperature；
(5) cold drawn: by cold drawn for bar one-tenth wire rod, processing obtains barred body 1.
In described step (5), time cold drawn, 1050 DEG C of annealing are used to eliminate processing hardening.
The preparation method of the barred body 1 of the present invention uses melting, Homogenization Treatments, forging, hot rolling and the step such as cold rolling, all can improve stainless intensity, and reduces the production cost of high-strength stainless steel finished product, and has preferable plasticity, meets the needs of deformation processing.
The electroplating surface of described barred body 1 has PdFe alloy modification coating, the preparation method of described PdFe alloy modification coating is: by filtered cathode vacuum arc technique, high-purity Pd and high-purity Fe is sequentially depositing one layer of Pd and Fe thin film at stainless steel surfaces, film thickness is respectively as follows: Fe film 4 μm, Pd film 1 μm, and formed Pd film and Fe film reacted by abundant counterdiffusion and form PdFe alloy modification coating.
The preparation method of described PdFe alloy modification coating is particularly as follows: use filtered cathode vacuum arc technique; cathode arc target selects high purity iron and High Purity Palladium to make target; when barred body 1 surface temperature reaches 100 DEG C; carry out filtered cathode vacuum arc; set Ar gas shielded air pressure 0.4Pa, workpiece back bias voltage 100V, arc current 80A; the sedimentation rate controlling Fe film is 0.8 μm/min, and the sedimentation rate of Pd film is 0.2 μm/min；The plated film time is respectively as follows: Fe film 8min, Pd film 2min；Then carrying out diffusion in vacuum heat treatment, processing technique is that heating under vacuum 700 DEG C is incubated 18min.
Barred body 1 electroplating surface of the present invention has PdFe alloy modification coating, has that film thickness is uniform, adhesive force strong, a good biocompatibility have the features such as certain magnetic property.
Embodiment 2
The present embodiment is with the difference of above-described embodiment 1: a diameter of 0.5cm of described barred body 1, a length of 45cm of described barred body 1；The aperture in described knotting hole 2 is 0.5mm.
Described barred body 1 is prepared by medical stainless steel material, described medical stainless steel material includes the chemical element of following percentage by weight: C:0.12%, Si:0.7%, Mn:8%, Al:0.2%, Cr:15%, Ni:2%, N:0.7%, Mo:2.8%, Cu:1.1%, Ti:0.2%, Zr:0.02%, Re:0.02%, P≤0.008%, S≤0.008%, surplus is Fe.
The preparation method of described barred body 1 comprises the steps:
(1) melting: nitrogen is protected, and according to proportioning refine at 1412 DEG C of above-mentioned chemical composition, nitrogen pressure is maintained at 0.32MPa, pouring temperature 1405 DEG C, obtains vacuum ingot, then blanketing with inert gas electroslag remelting, obtains the ESR ingot that surface quality is more smooth；
(2) Homogenization Treatments: by ESR ingot Homogenization Treatments 5.5h at 1010 DEG C；
(3) forging: forging initial temperature 1010 DEG C, final forging temperature is 910 DEG C, obtains forging stock；
(4) hot rolling: forging stock is heated to 1010 DEG C, hot rolling becomes bar, and air cooling is to room temperature；
(5) cold drawn: by cold drawn for bar one-tenth wire rod, processing obtains barred body 1.
In described step (5), time cold drawn, 1060 DEG C of annealing are used to eliminate processing hardening.
The electroplating surface of described barred body 1 has PdFe alloy modification coating, the preparation method of described PdFe alloy modification coating is: by filtered cathode vacuum arc technique, high-purity Pd and high-purity Fe is sequentially depositing one layer of Pd and Fe thin film at stainless steel surfaces, film thickness is respectively as follows: Fe film 4.5 μm, Pd film 1.5 μm, and formed Pd film and Fe film reacted by abundant counterdiffusion and form PdFe alloy modification coating.
The preparation method of described PdFe alloy modification coating is particularly as follows: use filtered cathode vacuum arc technique; cathode arc target selects high purity iron and High Purity Palladium to make target; when barred body 1 surface temperature reaches 105 DEG C; carry out filtered cathode vacuum arc; set Ar gas shielded air pressure 0.45Pa, workpiece back bias voltage 102V, arc current 82A; the sedimentation rate controlling Fe film is 0.85 μm/min, and the sedimentation rate of Pd film is 0.25 μm/min；The plated film time is respectively as follows: Fe film 10min, Pd film 3min；Then carrying out diffusion in vacuum heat treatment, processing technique is that heating under vacuum 750 DEG C is incubated 19min.
Embodiment 3
The present embodiment is with the difference of above-described embodiment 1: a diameter of 0.5cm of described barred body 1, a length of 45cm of described barred body 1；The aperture in described knotting hole 2 is 0.6mm.
Described barred body 1 is prepared by medical stainless steel material, described medical stainless steel material includes the chemical element of following percentage by weight: C:0.15%, Si:0.8%, Mn:9%, Al:0.3%, Cr:16%, Ni:3%, N:0.8%, Mo:3%, Cu:1.2%, Ti:0.3%, Zr:0.03%, Re:0.03%, P≤0.005%, S≤0.005%, surplus is Fe.
The preparation method of described barred body 1 comprises the steps:
(1) melting: nitrogen is protected, and according to proportioning refine at 1475 DEG C of above-mentioned chemical composition, nitrogen pressure is maintained at 0.35MPa, pouring temperature 1410 DEG C, obtains vacuum ingot, then blanketing with inert gas electroslag remelting, obtains the ESR ingot that surface quality is more smooth；
(2) Homogenization Treatments: by ESR ingot Homogenization Treatments 6h at 1020 DEG C；
(3) forging: forging initial temperature 1020 DEG C, final forging temperature is 920 DEG C, obtains forging stock；
(4) hot rolling: forging stock is heated to 1020 DEG C, hot rolling becomes bar, and air cooling is to room temperature；
(5) cold drawn: by cold drawn for bar one-tenth wire rod, processing obtains barred body 1.
In described step (5), time cold drawn, 1070 DEG C of annealing are used to eliminate processing hardening.
The electroplating surface of described barred body 1 has PdFe alloy modification coating, the preparation method of described PdFe alloy modification coating is: by filtered cathode vacuum arc technique, high-purity Pd and high-purity Fe is sequentially depositing one layer of Pd and Fe thin film at stainless steel surfaces, film thickness is respectively as follows: Fe film 5 μm, Pd film 2 μm, and formed Pd film and Fe film reacted by abundant counterdiffusion and form PdFe alloy modification coating.
The preparation method of described PdFe alloy modification coating is particularly as follows: use filtered cathode vacuum arc technique; cathode arc target selects high purity iron and High Purity Palladium to make target; when barred body 1 surface temperature reaches 110 DEG C; carry out filtered cathode vacuum arc; set Ar gas shielded air pressure 0.5Pa, workpiece back bias voltage 105V, arc current 85A; the sedimentation rate controlling Fe film is 0.9 μm/min, and the sedimentation rate of Pd film is 0.3 μm/min；The plated film time is respectively as follows: Fe film 12min, Pd film 4min；Then carrying out diffusion in vacuum heat treatment, processing technique is that heating under vacuum 800 DEG C is incubated 21min.
Embodiment 4
The present embodiment is with the difference of above-described embodiment 1: a diameter of 0.5cm of described barred body 1, a length of 45cm of described barred body 1；The aperture in described knotting hole 2 is 0.7mm.
Described barred body 1 is prepared by medical stainless steel material, described medical stainless steel material includes the chemical element of following percentage by weight: C:0.18%, Si:0.9%, Mn:10%, Al:0.4%, Cr:17%, Ni:4%, N:0.9%, Mo:3.2%, Cu:1.3%, Ti:0.4%, Zr:0.04%, Re:0.04%, P≤0.008%, S≤0.008%, surplus is Fe.
The preparation method of described barred body 1 comprises the steps:
(1) melting: nitrogen is protected, and according to proportioning refine at 1435 DEG C of above-mentioned chemical composition, nitrogen pressure is maintained at 0.38MPa, pouring temperature 1415 DEG C, obtains vacuum ingot, then blanketing with inert gas electroslag remelting, obtains the ESR ingot that surface quality is more smooth；
(2) Homogenization Treatments: by ESR ingot Homogenization Treatments 6.5h at 1030 DEG C；
(3) forging: forging initial temperature 1030 DEG C, final forging temperature is 930 DEG C, obtains forging stock；
(4) hot rolling: forging stock is heated to 1030 DEG C, hot rolling becomes bar, and air cooling is to room temperature；
(5) cold drawn: by cold drawn for bar one-tenth wire rod, processing obtains barred body 1.
In described step (5), time cold drawn, 1070 DEG C of annealing are used to eliminate processing hardening.
The electroplating surface of described barred body 1 has PdFe alloy modification coating, the preparation method of described PdFe alloy modification coating is: by filtered cathode vacuum arc technique, high-purity Pd and high-purity Fe is sequentially depositing one layer of Pd and Fe thin film at stainless steel surfaces, film thickness is respectively as follows: Fe film 5.5 μm, Pd film 2.5 μm, and formed Pd film and Fe film reacted by abundant counterdiffusion and form PdFe alloy modification coating.
The preparation method of described PdFe alloy modification coating is particularly as follows: use filtered cathode vacuum arc technique; cathode arc target selects high purity iron and High Purity Palladium to make target; when barred body 1 surface temperature reaches 115 DEG C; carry out filtered cathode vacuum arc; set Ar gas shielded air pressure 0.55Pa, workpiece back bias voltage 108V, arc current 88A; the sedimentation rate controlling Fe film is 0.95 μm/min, and the sedimentation rate of Pd film is 0.35 μm/min；The plated film time is respectively as follows: Fe film 14min, Pd film 5min；Then carrying out diffusion in vacuum heat treatment, processing technique is that heating under vacuum 850 DEG C is incubated 23min.
Embodiment 5
The present embodiment is with the difference of above-described embodiment 1: a diameter of 0.5cm of described barred body 1, a length of 50cm of described barred body 1；The aperture in described knotting hole 2 is 0.8mm.
Described barred body 1 is prepared by medical stainless steel material, described medical stainless steel material includes the chemical element of following percentage by weight: C:0.2%, Si:1%, Mn:12%, Al:0.5%, Cr:18%, Ni:5%, N:1%, Mo:3.5%, Cu:1.5%, Ti:0.5%, Zr:0.05%, Re:0.05%, P≤0.01%, S≤0.01%, surplus is Fe.
The preparation method of described barred body 1 comprises the steps:
(1) melting: nitrogen is protected, and according to proportioning refine at 1450 DEG C of above-mentioned chemical composition, nitrogen pressure is maintained at 0.4MPa, pouring temperature 1420 DEG C, obtains vacuum ingot, then blanketing with inert gas electroslag remelting, obtains the ESR ingot that surface quality is more smooth；
(2) Homogenization Treatments: by ESR ingot Homogenization Treatments 7h at 1040 DEG C；
(3) forging: forging initial temperature 1040 DEG C, final forging temperature is 940 DEG C, obtains forging stock；
(4) hot rolling: forging stock is heated to 1040 DEG C, hot rolling becomes bar, and air cooling is to room temperature；
(5) cold drawn: by cold drawn for bar one-tenth wire rod, processing obtains barred body 1.
In described step (5), time cold drawn, 1080 DEG C of annealing are used to eliminate processing hardening.
The electroplating surface of described barred body 1 has PdFe alloy modification coating, the preparation method of described PdFe alloy modification coating is: by filtered cathode vacuum arc technique, high-purity Pd and high-purity Fe is sequentially depositing one layer of Pd and Fe thin film at stainless steel surfaces, film thickness is respectively as follows: Fe film 6 μm, Pd film 3 μm, and formed Pd film and Fe film reacted by abundant counterdiffusion and form PdFe alloy modification coating.
The preparation method of described PdFe alloy modification coating is particularly as follows: use filtered cathode vacuum arc technique; cathode arc target selects high purity iron and High Purity Palladium to make target; when barred body 1 surface temperature reaches 120 DEG C; carry out filtered cathode vacuum arc; set Ar gas shielded air pressure 0.6Pa, workpiece back bias voltage 110V, arc current 90A; the sedimentation rate controlling Fe film is 1 μm/min, and the sedimentation rate of Pd film is 0.4 μm/min；The plated film time is respectively as follows: Fe film 16min, Pd film 6min；Then carrying out diffusion in vacuum heat treatment, processing technique is that heating under vacuum 900 DEG C is incubated 24min.
Above-described embodiment is the present invention preferably implementation, and in addition, the present invention can realize with alternate manner, and the most any obvious replacement is all within protection scope of the present invention.