CN105054984A - Fastening-type micro-nail magnetic-squeezing anastomosis ring - Google Patents
Fastening-type micro-nail magnetic-squeezing anastomosis ring Download PDFInfo
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- CN105054984A CN105054984A CN201510382496.8A CN201510382496A CN105054984A CN 105054984 A CN105054984 A CN 105054984A CN 201510382496 A CN201510382496 A CN 201510382496A CN 105054984 A CN105054984 A CN 105054984A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/11—Surgical instruments, devices or methods for performing anastomosis; Buttons for anastomosis
- A61B17/1114—Surgical instruments, devices or methods for performing anastomosis; Buttons for anastomosis of the digestive tract, e.g. bowels or oesophagus
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/11—Surgical instruments, devices or methods for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis, e.g. in a single operation
- A61B17/1152—Staplers for performing anastomosis, e.g. in a single operation applying the staples on the outside of the lumen
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00831—Material properties
- A61B2017/00876—Material properties magnetic
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/11—Surgical instruments, devices or methods for performing anastomosis; Buttons for anastomosis
- A61B2017/1132—End-to-end connections
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Abstract
A fastening-type micro-nail magnetic-squeezing anastomosis ring comprises a bolting ring and an upper ring connected to the upper part of the bolting ring and contains a circular knife, the inner side or the outer side of the bolting ring is integrally provided with more than two fixed nuts, and bolts which are connected with the fixed nuts and are used for clamping the upper ring contains the circular knife on the upper surface of the bolting ring firmly, and the upper ring and the bolt magnet ring are both elliptical or circular ring structures. The fastening-type micro-nail magnetic-squeezing anastomosis ring is fastened by the bolts, the healing quality is guaranteed, the anastomosis window is bigger, and the clinical application safety is improved; the cast that anastomotic orifice and the hemorrhoids tissues are penetrated and torn, and the anastomotic orifice bleeds and is torn and the like is avoided; and the anastomosis ring can be buckled with others easily; the circular knife is hidden in the inner rim of one side of the magnet ring, and surrounding tissues can be prevented from being damaged; and the anastomosis is not penetrating without residual foreign matter. According to the invention, the magnetic shielding effect can be reduced at the most extent, and the magnetic force is not obviously affected.
Description
Technical field
The present invention relates to a kind of magnetic pressure and squeeze anastomosis ring.Particularly relate to a kind of fastening nail magnetic pressure that declines with fastening-type bolt and concealed safety dise knife and squeeze anastomosis ring.
Background technology
China's hemorrhoid sickness rate is higher, and with age, its sickness rate also increases gradually.Along with the aggravation of Chinese society aging degree, this problem can be more and more outstanding.Current III-IV degree prolapsed internal hemorrhoids mainly adopts operative treatment, in the past based on Milligan-Morgan methods, mucosa procedure (Procedureforprolapseandhemorrhoids, PPH) in the hemorrhoid that first Italian scholar Longo in 1998 proposes to use titanium nail circular staplers.PPH passes through the lax rectum lower end mucosa of anastomat circular resection and submucous tissue, and coincide to far away, near-end mucosa, anus pad is promoted, and is again suspended in rectum lower end simultaneously, recover mucous membrane of anal canal and sphincteral normal anatomical structures, improve anus self-control function.Also cut off the Major Vessels of supply hemorrhoid, blood flow under minimizing mucosa, the atrophy gradually of postoperative blood stasis simultaneously.PPH has and does not destroy anus pad normal physiological function, meets the advantages such as podex anatomical physiology, simple to operate, short term effect is good, is promoted rapidly in the world.
But find gradually in the Clinical practice process reaching nearly 20 years thereafter, capable PPH is postoperative for circular titanium nail anastomat, the long period indwelling of titanium nail, easily cause the complication such as hemorrhage, intractable proctalgia or falling inflation, narrow, infection, urine retention, and also have that recurrence prolapsus rate is high for a long time, continuous bleeding, anal stenosis, anal incontinence, chronic pain, again operation follow closely by residual titanium the major defect affected.And titanium nail anastomat complex manufacturing, titanium nail is tiny, and quantity is more, and yield rate is difficult to reach 100%, causes de-nail directly to cause the severe complications such as hemorrhage or anastomotic leakage.Therefore, circular titanium follows closely anastomat at Colon and rectum surgical field, especially for mucosectomy in hemorrhoid, when having arrived needs update.
Squeezing property anastomosis (comprising nail ring, memorial alloy ring, degradable ring, magnet ring etc.) solves above-mentioned defect preferably.Squeezing property anastomosis principle is for downright bad by squeezing site tissue, and surrounding tissue growth healing, anastomosis ring comes off gradually thereafter, forms squeezing anastomotic stoma.The common disadvantage of nail ring, memorial alloy ring and degradable ring is that structure is more complicated, and volume is slightly large, therefore causes stenosis of bowel, discharges difficulty.And gradual, non-penetrating type squeezing cannot be formed, heal slower.
Magnet ring coincide belong to evenly, continue, non-penetrating, gradual squeezing healing, it is advantageous that magnet ring finally can excrete with feces, residual any foreign body, avoids the defect of the permanent indwelling of titanium nail anastomat foreign body.And compared with titanium nail coincide decrease hemorrhage, infect risk.It is in 1981 for alimentary tract anastomosis the earliest that magnetic squeezing coincide, Holland Jansen etc. uses cobalt permanent magnet magnetic post and supporting polymer inner support, external diameter 25,28 and 30mm (internal diameter be respectively 13,15 and 17mm) are that 21 routine patients (65.8 years old mean age) implement clinical low level colorectolostomy.The postoperative 7-12d of result, magnet ring is all discharged with stool.Result is postoperative to be had 1 routine patient's anastomotic stoma to split again to perform the operation, and 1 routine patient's anastomotic stoma meroblastic cleavage is opened, and after 1 routine operation in patients, 3d heart infarction is dead, and all the other 18 routine patients' recoveries from illness are left hospital.But due to magnetic material restriction at that time, magnetic force is more weak, magnetic column volume is comparatively large, heavier-weight, and internal diameter less (only 13-17mm) easily causes blocking, and the clamp devices such as non-bolt, clinical safety is under suspicion, and goes out of use gradually thereafter.
Within 2006, patent applicant successfully utilizes magnetic anastomosis rings to carry out dog liver transplantation Great vascular reconstruction (TransplantProc.2006Nov; 38 (9): 3070-4), patent applicant in 2013 successfully utilizes magnetic anastomosis rings to carry out Rat Liver Transplantation Major Vessels reconstruction (TransplInt.2015Jan again; 28 (1): 89-94), blood vessel healing rate is very fast, and healing quality is good.Establish the Research foundation of hemorrhoid cirso-group resection and anastomosis thus.In the same year, through patent applicant's license, GengShu ' an etc. utilizes two simple magnet rings to carry out the experiment of mucosa ring cutting in pig hemorrhoid on this basis, and respond well, all magnet rings all excrete (SurgToday.2015Jan smoothly in postoperative 7-10d; 45 (1): 78-82).At present, magnetic anastomosis has worldwide been widely used in the fields such as Cholangio-jejunostomy, vascular anastomosis, coronary bypass, gastrointestinal anastomosis, esophagostenosis dredging, Gastroesophageal Reflux treatment.Above-mentioned research all becomes the most important theories basis of this patent.
But the magnetic stapling apparatus mentioned due to previous literature or patent to coincide etc. for hemorrhoid and remains in open defect, most magnetic stapling apparatus is two simple magnet rings, be difficult to meet clinical safety, the requirement such as accurate reliable, distance clinical practice is still far away, needs to address the problem:
1) cardinal principle of magnet ring clinical practice to come off in advance magnetic force excessive causing, can not magnetic force is too small causes that anastomotic stoma is thrown off, slippage or dislocation, and these all belong to severe complication.
2) feature of magnet ring own is that magnetic force is decayed rapidly along with tissue thickness strengthens, and there is inflammation edema near hemorrhoid more, and the vein group of varicose in addition causes organizing thicker, obviously weakens magnetic attracting force, easily causes anastomotic stoma to be thrown off.And along with anastomotic stoma inflammation edema disappearing and by the necrosis of squeezing tissue, magnetic attracting force is increasing, and necrosis is more and more faster, and healing rate is not accelerated, therefore easily to come off before healing.And the age of each patient, tissue thickness, body weight etc. are all not identical, therefore need to solve this great difficult problem.
3) magnet ring own material mostly is neodymium iron boron or other rare earth materials, all there is easy disintegrate, is difficult to Precision Machining, easily by defect that human internal environment is corroded.
4) if add thicker common metal shell, then easily cause local magnetic shield, have a strong impact on the magnetic force of magnet ring.
5) other magnet rings lack clamp device in addition, when organizing thicker or edema, easily throwing off, having a strong impact on Clinical practice safety.
Summary of the invention
Technical problem to be solved by this invention is, there is provided one can substitute existing titanium nail circular staplers, for hemorrhoid ring cutting, constipation by outlet obstruction's operative treatment, low level anusreserved surgery, peritomize, the surgical operation such as colonic diversion, and the operating fastening nail magnetic pressure that declines of Wicresoft's Colon and rectum squeezes anastomosis ring.
The technical solution adopted in the present invention is: a kind of fastening nail magnetic pressure that declines squeezes anastomosis ring, include bolt ring and be connected to the pressed on ring containing dise knife above bolt ring, inside the ring of described bolt ring or be formed with plural hold-down nut outside ring, and the bolt being used for the described pressed on ring containing dise knife firmly being fixed on described bolt ring is connected with hold-down nut, described pressed on ring and bolt magnet ring are the ring structure of ellipse or circle.
Symmetrically inside the ring of described bolt ring or outside ring be formed with two or more for connecting the groove of other auxiliary device, and, inside the ring that described groove and described hold-down nut are positioned at described bolt ring simultaneously or outside ring.
Described pressed on ring includes the cutter toroidal shell body containing dise knife, is embedded in the first magnet ring of described cutter ring enclosure interior, the outer face of described cutter toroidal shell body is formed with most the locating holes be fixedly connected with described bolt ring for pressed on ring.
A circle concealed safety dise knife is formed with near upper end surface on anchor ring or on outer ring surface in described cutter toroidal shell body.
Described bolt ring includes bolt toroidal shell body, is embedded in the second magnet ring of described bolt ring enclosure interior, be fixedly connected on the locating ring on described bolt ring hull outside upper surface, described locating ring is formed with most for being inserted into the location thorn in the locating hole be formed on pressed on ring outer face, and the base ring be fixedly connected on described bolt toroidal shell body bottom face, described two or more hold-down nut is integrally formed on the inner rim of described base ring, or is integrally formed on the neighboring of described base ring.
Two or more is integrally formed in described base ring for the groove connecting other auxiliary device, and, when described two hold-down nuts are integrally formed on the inner rim of described base ring, two described grooves are also integrally formed on the inner rim of described base ring, when described two hold-down nuts are integrally formed on the neighboring of described base ring, two described grooves are also integrally formed on the neighboring of described base ring.
Described bolt and hold-down nut are threaded connection, or described bolt is be connected by articulated form with hold-down nut.
Annular knurl or protruding or groove structure is formed in two end faces that locating ring and pressed on ring contact with each other or on the end face of locating ring or on the end face of pressed on ring.
The dual-side of an end face in two end faces that locating ring and pressed on ring contact with each other is formed with the squeezing inclined-plane of band constant slope.
The fastening nail magnetic pressure that declines of one of the present invention squeezes anastomosis ring, has following features:
1, have bolt type clamp device, after magnet ring is involutory, then fixed fast with bolt, its advantage is as follows:
1) through bolted, magnet ring cannot be thrown off, and improves Clinical practice safety, avoids there is edema between magnet ring or thicker tissue is easily thrown off, or transverse direction or longitudinal sliding motion dislocation between magnet ring, can also avoid organizing thicker and strengthen before magnetic force causes organization healing and come off.
2), ensure the prerequisite of not throwing off at bolt type clamp device under, contribute to reducing magnet ring volume and weight, make anastomat lighter.
3), ensure the prerequisite of not throwing off at bolt type clamp device under, anastomat internal diameter also can be made larger, reduce anastomotic stoma place and block risk.
4) patient age, tissue thickness, nutriture, with or without individual differences such as diabetic complicationses, when effectively preventing magnet ring from throwing off at bolt type clamp device, carrying out progressive squeezing with slightly weak captivation, preventing too fast healing from coming off, ensureing healing quality, is preferred plan.
2, in the present invention, bolt type clamp device structure is unique, without the need to exactitude position in the involutory process of magnet ring, magnet ring is involutory complete after to screw on wide head screw, not only fixing comparatively buckle (application number 201410699112.0) more definitely, more reliable, and avoid may penetrating in buckle process and tearing anastomotic stoma and hemorrhoidal tissue, cause Anastomotic bleeding, tear equivalent risk.
The needle ring 3, in the present invention with micro-nail is side Miniature nail (location thorn), opposite side circular port (locating hole), not only effectively avoid organizing slippage (particularly preputial between magnet ring, and hemorrhoidal tissue that is thicker or edema), and more easily involutory.Other magnet ring anastomats lack the fixing of magnet ring Contact face mostly, organize easy slippage.
4, on fastening bolt and magnet ring basis, add pin structure in a subtle way in the present invention, can excise thicker tissue, identical window more strengthens, safer; And the demand decreased strong magnetic force, and contribute to alleviating overall weight, and significantly improve the identical safety of magnet ring.
5, middle magnetic ring inner edge of the present invention concealed safety dise knife, namely dise knife is hidden in magnet ring inner edge, side, not obviously protrudes from magnet ring horizontal plane, is not only conducive to avoiding damaging surrounding tissue, improve safety, and avoid the accurately involutory defect of other protruding-type dise knifes needs.When implementing, utilize the great power that magnet ring is involutory, magnet ring three dimensions accurate characteristics, after auxiliary anastomat squeezing magnet ring, resection and anastomosis mouth inner edge excess tissue.Simplify anastomat structure, reduce cost, improve clinical safety.
6, non-penetrative coincide, and foreign remains: the actual anastomotic stoma of the present invention is positioned at magnet ring outer rim, and belong to non-penetrative and coincide, reduce inflammation reaction; The rear magnet ring of healing is discharged with stool, and foreign remains, and avoids titanium to follow closely indwelling and causes intractable proctalgia, and healing effect is better than needlework stitching, titanium nail is involutory.And for after the recurrence of long-term postoperative hemorrhoid, facility is created in operation again, effectively solves long term complication.
, all there is easy disintegrate, be difficult to Precision Machining, easily by defect that human internal environment is corroded in 7, the extraordinary box hat of magnetic conduction: magnet ring own material mostly is neodymium iron boron or other rare earth materials.And if add thicker common metal shell, then easily cause local magnetic shield, have a strong impact on the magnetic force of magnet ring, in addition other magnet rings lack clamp device, when organizing thicker or edema, easily throwing off, having a strong impact on Clinical practice safety.The present invention can adopt steel (such as 1J22), titanium or plastics that magnetic conductivity is strong as shell, 1J22 material property and steel are close to while improving magnet ring physical characteristic, processability, at utmost reduce magnetic field shielding, magnetic force is had no significant effect.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of first embodiment of the invention;
Fig. 2 is the overall structure schematic diagram of second embodiment of the invention;
Fig. 3 is the pressed on ring decomposition texture schematic diagram that the present invention contains dise knife;
Fig. 4 is the overall structure schematic diagram that the present invention contains the pressed on ring of dise knife;
Fig. 5 is the real decomposition texture schematic diagram of bolt ring first of the present invention;
Fig. 6 is the real overall structure schematic diagram of bolt ring first of the present invention;
Fig. 7 is the real overall structure schematic diagram of bolt ring second of the present invention;
Fig. 8 is the present invention's mucosa procedure schematic diagram in hemorrhoid;
Fig. 9 is that the present invention is for schematic diagram of peritomizing.
In figure
1: pressed on ring 1-1: cutter toroidal shell body
1-2: the first magnet ring 2: bolt ring
2-1: bolt toroidal shell body 2-2: the second magnet ring
2-3: locating ring 2-4: base ring
3: groove 4: bolt
5: hold-down nut 6: location thorn
7: locating hole 8: safe dise knife
9: rectal wall 10: anus
11: preputial 12: foreskin
Detailed description of the invention
Squeeze anastomosis ring below in conjunction with embodiment and accompanying drawing to the fastening nail magnetic pressure that declines of one of the present invention to be described in detail.
As shown in Figure 1 and Figure 2, the fastening nail magnetic pressure that declines of one of the present invention squeezes anastomosis ring, and include bolt ring 2 and be connected to the pressed on ring 1 containing dise knife above bolt ring 2, described pressed on ring 1 and bolt ring 2 are the ring structure of ellipse or circle.Inside the ring of described bolt ring 2 or be formed with plural hold-down nut 5 outside ring, and the bolt 4 being used for described pressed on ring 1 firmly being fixed on described bolt ring 2 is connected with hold-down nut 5, described bolt 4 can adopt wide flat head bolt.After pressed on ring 1 and bolt ring 2 are involutory, then fixed fast with wide flat head bolt 4.
As shown in Figure 1 and Figure 2, symmetrically inside the ring of described bolt ring 2 or outside ring be formed with the plural groove 3 for connecting other auxiliary device, further, inside the ring that described groove 3 and described hold-down nut 5 are positioned at described bolt ring 2 simultaneously or outside ring.
As shown in Figure 3, Figure 4, described pressed on ring 1 includes the cutter toroidal shell body 1-1 containing dise knife, be embedded in the first magnet ring 1-2 of described cutter toroidal shell body 1-1 inside, the outer face of described cutter toroidal shell body 1-1 be formed with most the locating holes 7 be fixedly connected with described bolt ring 2 for pressed on ring 1.A circle concealed safety dise knife 8 is formed with near upper end surface on anchor ring or on outer ring surface in described cutter toroidal shell body 1-1.Safe dise knife 8 is hidden in pressed on ring 1 ring inner edge, is conducive to avoiding damaging surrounding tissue, improves safety.When implementing, utilize the great power that magnet ring is involutory, magnet ring three dimensions accurate characteristics, after auxiliary anastomat squeezing magnet ring, resection and anastomosis mouth inner edge excess tissue.Simplify anastomat structure, reduce cost, improve clinical safety.
As Fig. 5, Fig. 6, shown in Fig. 7, described bolt ring 2 includes bolt toroidal shell body 2-1, be embedded in the second magnet ring 2-2 of described bolt toroidal shell body 2-1 inside, be fixedly connected on the locating ring 2-3 on described bolt toroidal shell body 2-1 outer upper end face, described locating ring 2-3 is formed with most for being inserted into the location thorn 6 in the locating hole 7 be formed on pressed on ring 1 outer face, thus guarantee that pressed on ring 1 and described bolt ring 2 are located by connecting, not only effectively avoid organizing slippage between magnet ring, particularly preputial, and hemorrhoidal tissue that is thicker or edema, and it is more easily involutory.Described bolt ring 2 also includes the base ring 2-4 be fixedly connected on described bolt toroidal shell body 2-1 bottom face, described plural hold-down nut 5 is integrally formed on the inner rim of described base ring 2-4, or is integrally formed on the neighboring of described base ring 2-4.
In two end faces that locating ring 2-3 and pressed on ring 1 contact with each other, or be formed with annular knurl or protruding or groove structure on the end face of locating ring 2-3 or on the end face of pressed on ring 1, in case locating ring 2-3 and pressed on ring 1 misplace.
Further, the dual-side of an end face in two end faces contacted with each other at locating ring 2-3 and pressed on ring 1 is formed with the squeezing inclined-plane of band constant slope.Two end faces that locating ring 2-3 and pressed on ring 1 contact with each other adopt oblique facial structure, thus change in the identical barometric gradient that is partially formed of squeezing, not only reduce bolt ring 2 and pressed on ring 1 ring edge for organizing cutting force, and be conducive to squeezing place outside tissue to holding together and healing.Squeezing can be avoided too fastly easily to cause fistula of operative incision, anastomotic stoma intensity can also be increased.
The described plural groove 3 for connecting other auxiliary device is integrally formed in described base ring 2-4, and, when on the inner rim that described plural hold-down nut 5 is integrally formed in described base ring 2-4, described plural groove 3 is also integrally formed on the inner rim of described base ring 2-4, when on the neighboring that described plural hold-down nut 5 is integrally formed in described base ring 2-4, described plural groove 3 is also integrally formed on the neighboring of described base ring 2-4.
The fastening nail magnetic pressure that declines of one of the present invention squeezes anastomosis ring, adopt strong special steel (such as 1J22), titanium or the plastics of magnetic conductivity as shell, 1J22 material property and steel are close to while improving magnet ring physical characteristic, processability, at utmost reduce magnetic field shielding, magnetic force is had no significant effect.
The fastening nail magnetic pressure that declines of one of the present invention squeezes anastomosis ring use procedure in mucosa procedure in hemorrhoid: first anaesthetize, then expand anus and put into dilator, being fixed.Then at the horizontal purse string suture of the above 2-4cm of pectinate line, the degree of depth reaches tela submucosa.Insert side anastomosis ring, and tighten up purse wire, then promote opposite side anastomosis ring and carry out involutory, continue squeezing more than 1 minute.Find fixed length nut salient point inside anastomosis ring, tighten wide head set bolt and exit anastomat.Thorough hemostasis.Clinical follow 3-5d leaves hospital.
The fastening nail magnetic pressure that declines of one of the present invention squeezes anastomosis ring use procedure in posthetomy: first art district preserved skin sterilization, then local anesthesia.Select to be applicable to diameter magnet ring according to measurement result in art.First place bolt ring, then turn up foreskin or purse string suture are fixed, and place thereafter the pressed on ring containing dise knife, tight a bolt and fixed, excise unnecessary foreskin and bind up a wound.Postoperative without the need to tearing ring open, self falling.
Claims (9)
1. the fastening nail magnetic pressure that declines squeezes anastomosis ring, include bolt ring (2) and be connected to the pressed on ring (1) containing dise knife above bolt ring (2), it is characterized in that, inside the ring of described bolt ring (2) or be formed with plural hold-down nut (5) outside ring, and the bolt (4) being used for the described pressed on ring (1) containing dise knife firmly being fixed on described bolt ring (2) is connected with hold-down nut (5), described pressed on ring (1) and bolt magnet ring (2) are the ring structure of ellipse or circle.
2. the fastening nail magnetic pressure that declines of one according to claim 1 squeezes anastomosis ring, it is characterized in that, symmetrically inside the ring of described bolt ring (2) or outside ring be formed with two or more for connecting the groove (3) of other auxiliary device, further, inside the ring that described groove (3) and described hold-down nut (5) are positioned at described bolt ring (2) simultaneously or outside ring.
3. the fastening nail magnetic pressure that declines of one according to claim 1 squeezes anastomosis ring, it is characterized in that, described pressed on ring (1) includes the cutter toroidal shell body (1-1) containing dise knife, be embedded in the first magnet ring (1-2) that described cutter toroidal shell body (1-1) is inner, the outer face of described cutter toroidal shell body (1-1) be formed with most the locating holes (7) be fixedly connected with described bolt ring (2) for pressed on ring (1).
4. the fastening nail magnetic pressure that declines of one according to claim 3 squeezes anastomosis ring, it is characterized in that, on described cutter toroidal shell body (1-1) inner anchor ring or on outer ring surface and near upper end surface, be formed with a circle concealed safety dise knife (8).
5. the fastening nail magnetic pressure that declines of one according to claim 1 squeezes anastomosis ring, it is characterized in that, described bolt ring (2) includes bolt toroidal shell body (2-1), be embedded in the second magnet ring (2-2) that described bolt toroidal shell body (2-1) is inner, be fixedly connected on the locating ring (2-3) on described bolt toroidal shell body (2-1) outer upper end face, described locating ring (2-3) is formed with most for being inserted into location thorn (6) in the locating hole (7) be formed on pressed on ring (1) outer face, and the base ring (2-4) be fixedly connected on described bolt toroidal shell body (2-1) bottom face, described two or more hold-down nut (5) is integrally formed on the inner rim of described base ring (2-4), or be integrally formed on the neighboring of described base ring (2-4).
6. the fastening nail magnetic pressure that declines of one according to claim 5 squeezes anastomosis ring, it is characterized in that, two or more is integrally formed in described base ring (2-4) for the groove (3) connecting other auxiliary device, and, when described two hold-down nuts (5) are integrally formed on the inner rim of described base ring (2-4), two described grooves (3) are also integrally formed on the inner rim of described base ring (2-4), when described two hold-down nuts (5) are integrally formed on the neighboring of described base ring (2-4), two described grooves (3) are also integrally formed on the neighboring of described base ring (2-4).
7. the fastening nail magnetic pressure that declines of one according to claim 1 squeezes anastomosis ring, it is characterized in that, described bolt (4) and hold-down nut (5) are threaded connection, or described bolt (4) is be connected by articulated form with hold-down nut (5).
8. the fastening nail magnetic pressure that declines of one according to claim 5 squeezes anastomosis ring, it is characterized in that, in two end faces that locating ring (2-3) and pressed on ring (1) contact with each other or on the end face of locating ring (2-3) or on the end face of pressed on ring (1), be formed with annular knurl or protruding or groove structure.
9. the fastening nail magnetic pressure that declines of one according to claim 5 squeezes anastomosis ring, it is characterized in that, the dual-side of an end face in two end faces that locating ring (2-3) and pressed on ring (1) contact with each other is formed with the squeezing inclined-plane of band constant slope.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510382496.8A CN105054984B (en) | 2015-07-02 | 2015-07-02 | One kind fastening, which declines, follows closely magnetic pressure squeezing anastomosis ring |
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| CN201510382496.8A CN105054984B (en) | 2015-07-02 | 2015-07-02 | One kind fastening, which declines, follows closely magnetic pressure squeezing anastomosis ring |
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| CN105054984A true CN105054984A (en) | 2015-11-18 |
| CN105054984B CN105054984B (en) | 2017-12-29 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105796159A (en) * | 2016-04-27 | 2016-07-27 | 江西龙之吻医疗科技有限公司 | Multipole magnetic field force pairing attraction type circumcising anastomat |
| CN106236174A (en) * | 2016-08-10 | 2016-12-21 | 西安交通大学第附属医院 | A kind of magnetic anastomat being applicable to Cholangio-jejunostomy under peritoneoscope |
| WO2017101665A1 (en) * | 2015-12-18 | 2017-06-22 | 史源 | Magnetic anastomosis ring |
| CN107432758A (en) * | 2017-09-14 | 2017-12-05 | 史源 | A kind of support bar and stapling apparatus of double thread structure |
| CN108065980A (en) * | 2018-01-08 | 2018-05-25 | 苏风波 | A kind of gasket ring sutures anorectal anastomat |
| CN108210003A (en) * | 2018-01-08 | 2018-06-29 | 王筱芳 | A kind of double gasket ring anorectal anastomats |
| WO2018138632A1 (en) * | 2017-01-30 | 2018-08-02 | Ethicon Llc | Magnetic tissue compression device with backup mechanical latch |
| CN113041489A (en) * | 2019-12-26 | 2021-06-29 | 上海微创心力医疗科技有限公司 | Blood pump |
| US11395659B2 (en) | 2013-04-16 | 2022-07-26 | Ethicon Endo-Surgery, Inc. | Method and apparatus for joining hollow organ sections in anastomosis |
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