CN110604604A - Round anastomat under laparoscope - Google Patents
Round anastomat under laparoscope Download PDFInfo
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- CN110604604A CN110604604A CN201810614237.7A CN201810614237A CN110604604A CN 110604604 A CN110604604 A CN 110604604A CN 201810614237 A CN201810614237 A CN 201810614237A CN 110604604 A CN110604604 A CN 110604604A
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- 230000005489 elastic deformation Effects 0.000 claims description 28
- 238000010304 firing Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000009958 sewing Methods 0.000 abstract description 7
- 238000002324 minimally invasive surgery Methods 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 3
- 235000014676 Phragmites communis Nutrition 0.000 description 10
- 238000009527 percussion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002357 laparoscopic surgery Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003872 anastomosis Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Classifications
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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
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis in a single operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis in a single operation
- A61B17/1155—Circular staplers comprising a plurality of staples
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B2017/1107—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis for blood vessels
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The application relates to a circular anastomat capable of being used under a laparoscope, which comprises a nail seat assembly, a nail bin assembly and a handle assembly, wherein the nail seat assembly, the nail bin assembly and the handle assembly are arranged in a split mode; the nail seat assembly, the nail bin assembly and the handle assembly are sequentially placed into human tissues and then assembled for use. The nail seat assembly comprises a pull rod, the pull rod penetrates through the nail bin assembly to be connected with the handle assembly, and the nail bin assembly is connected with the pull rod and the handle assembly; the outer cannula at the front end of the handle assembly is smaller in size than a laparoscope for delivery through the laparoscope. The utility model is suitable for minimally invasive surgery, and can easily enter the body of a patient through a laparoscope without obstacles; the target tissue is sutured and cut after being assembled with the pre-placed nail bin assembly and the nail seat assembly, so that the use is convenient; can select the nail storehouse subassembly and the nail seat subassembly of not unidimensional according to sewing up the size of a dimension, it is convenient to change, has the universality. In addition, circular anastomat under peritoneoscope of this application can prevent that the sewing nail from deviating from.
Description
Technical Field
The application relates to the field of anastomats, in particular to a circular anastomat which is suitable for laparoscopic surgery and convenient to operate and use.
Background
The anastomat is a main medical device used in medicine to replace the traditional manual suture, and has the advantages of convenient use, quick suture, tight suture, moderate tightness, and few side effects and surgical complications. The circular anastomat is an anastomat frequently used in surgical operation on physiological tissues such as digestive tracts and the like, adopts axial anastomosis to form a circular anastomosis ring in the tissues, so that the tissues after operation are easy to heal, and the pain of a patient is relieved.
The existing circular anastomat adopts a combined structure of a nail abutting seat and an anastomat body, and the anastomat body is large in size and suitable for being used in the traditional open type operation environment. Laparoscopic surgery, as an emerging minimally invasive surgery, is an inevitable trend in the development of medical procedures in the future. However, laparoscope is generally about 12mm, and the currently used circular stapler with the large-size cartridge assembly and the handle assembly integrated cannot be suitable for laparoscopic surgery.
Disclosure of Invention
The technical problem that this application will solve is not enough to prior art, provides a circular anastomat under peritoneoscope with unique structural design, has solved the unchangeable technical problem of operation that exists among the prior art, and the nail storehouse of the circular anastomat of this application can be dismantled, and handle distal end diameter is little, is applicable to minimal access surgery operation, convenient operation.
According to one aspect of the application, a circular anastomat capable of being used under a laparoscope is provided, and comprises a nail seat assembly, a nail bin assembly and a handle assembly which are arranged in a split mode; the nail seat assembly comprises a pull rod, the pull rod penetrates through the nail bin assembly to be connected with the handle assembly, and the nail bin assembly is connected with the pull rod and the handle assembly; the outer cannula at the front end of the handle assembly is smaller in size than a laparoscope for delivery through the laparoscope.
Further, the nail seat assembly, the nail bin assembly and the handle assembly are sequentially placed into human tissues and then assembled for use.
Further, the nail seat assembly further comprises an elastic deformation component, the elastic deformation component comprises a fixed end and an elastic deformation end, the fixed end is fixed in the pull rod, the elastic deformation end protrudes out of the pull rod, and when the pull rod penetrates through the nail bin assembly, the elastic deformation end is compressed until the elastic deformation end penetrates out of the nail bin assembly and elastically recovers to enable the pull rod to be fixedly connected with the nail bin assembly.
Further, the pull rod is hollow rod, elastic deformation part is the card reed, the card reed includes card reed head and card reed blade, elastic deformation end sets up on the card reed blade, the card reed head is fixed on the pull rod, preferably fixes at the top of pull rod inboard, is provided with the groove parallel with the pull rod axis of ordinates on keeping away from the one end lateral wall of card reed head on the pull rod, the card reed blade passes through the body of pipe of pull rod and elastic deformation end is followed on the pull rod wear out in the groove.
Furthermore, the head of the clamping spring piece is clamped at the top end of the pull rod through interference fit.
Further, the elastic deformation end is provided with an inner connecting member and an outer connecting member, one of the inner connecting member and the outer connecting member is connected with the nail bin assembly, and the other of the inner connecting member and the outer connecting member is connected with the handle assembly.
Further, the medial and lateral connecting members are selected from the group consisting of projections, grooves, and hook-like structures.
In a specific embodiment, the inner connecting member on the clip leaf blade is an inner protrusion, and the outer connecting member is an outer protrusion.
Further, the nail bin assembly comprises a nail bin sleeve inner hole, when the pull rod penetrates through the nail bin sleeve inner hole, the outer side protrusion of the clamping spring piece is extruded by the nail bin sleeve inner hole to generate inward elastic deformation, the outer side protrusion penetrates through the nail bin sleeve inner hole and then the elastic deformation of the clamping spring piece recovers, and the outer side protrusion is clamped in an orifice of the nail bin sleeve inner hole to enable the nail seat assembly to be connected with the nail bin assembly.
Further, handle components includes the lead screw system, the lead screw system includes the toper and has the most advanced of annular groove, handle components's lead screw system can insert in the pull rod of nail seat subassembly, the card reed inboard protruding outwards take place elastic deformation, until in the most advanced recess of lead screw system is gone into to inboard protruding card, the elastic deformation of card reed resumes, makes movable handle be in lock state, makes nail seat subassembly with handle components connects and accomplishes the connection.
Further, the nail bin assembly comprises a nail bin, a nail bin sleeve, a nail pushing piece and an elastic component, wherein a hole in the nail bin sleeve is located in the center of the interior of the nail bin sleeve, the top of the elastic component is connected with the bottom surface of the nail bin, the bottom of the elastic component is connected with a step surface on the inner side of the nail pushing piece, and before the nail bin assembly is connected with the handle assembly, the elastic component always keeps applying pressure to the nail pushing piece in the direction away from the nail bin so as to prevent a suturing nail from falling out of the nail bin before being fired; the nail bin assembly is connected with the handle assembly and then used for triggering the suture nails, and the elastic component moves relatively between the bottom surface of the nail bin and the step surface of the nail pushing piece so as to complete triggering action.
Preferably, the elastic member is a wave spring.
Further, the handle assembly comprises an outer sleeve, a nail pushing seat, an adjusting nut, a movable handle and the screw rod system; the outer cannula is of a diameter to enter a trocar (endoscopic puncture outfit); the nail pushing seat is located at the front end of the outer sleeve and moves relative to the outer sleeve under the control of the movable handle, and when the nail pushing seat is triggered, the nail pushing seat is in contact connection with a nail pushing sheet in the nail bin assembly and pushes the nail pushing sheet to trigger, form and separate suturing nails.
Further, when the handle assembly is connected with the assembled nail seat assembly and the nail bin assembly, the inner side surface of the nail bin sleeve is fixedly connected with the far end of the outer sleeve when the movable handle is in a locked state.
Further, the inner side surface of the nail bin sleeve is connected with the far end of the outer sleeve in a buckling mode.
Further, the inner side of the nail bin sleeve comprises an inward-protruding step surface, and when the percussion is completed, the nail pushing seat is in contact with the step surface of the nail bin sleeve and stops on the step surface.
Furthermore, the outer sleeve is in a certain radian so as to conveniently enter human tissues.
The round anastomat under the laparoscope adopts the structure that the nail seat assembly, the detachable nail bin assembly and the handle assembly are arranged in a split mode and are used after being assembled, so that the size of the part, connected with the nail bin, of the handle, namely the front end of the handle assembly is greatly reduced, the round anastomat is suitable for minimally invasive surgery, and the round anastomat can easily enter a patient body through the laparoscope in the minimally invasive surgery without obstacles; the target tissue is sutured and cut after being assembled with the pre-placed nail bin assembly and the nail seat assembly, so that the use is convenient; in addition, can select the nail storehouse subassembly and the nail seat subassembly of not unidimensional according to sewing up the size of a dimension, it is convenient to change, has the universality.
Moreover, the handle assembly of the trocar is conveniently entered into by the round anastomat under the laparoscope, the outer sleeve is arranged at the far end of the handle assembly, and the outer sleeve is connected with the nail bin assembly and the firing system. The diameter of an outer sleeve of the traditional circular anastomat is larger than 12mm, so that the traditional circular anastomat cannot enter from a trocar and cannot meet the requirement of an operation under a cavity mirror. The diameter of the outer sleeve in the application is reduced to be less than 12mm, and the outer sleeve can be used under an endoscope. The outer sleeve is internally provided with a nail pushing seat which is in contact connection with a nail pushing sheet in the nail bin assembly instead of fixed connection when being triggered; after the percussion is finished, the nail pushing seat is separated from the nail bin assembly, the human tissue is withdrawn, and then the nail bin assembly and the nail seat assembly are taken out in sequence.
In addition, circular anastomat can prevent to sew up under the peritoneoscope of this application and deviate from, the ejector pin piece among the traditional structure nail storehouse subassembly is relative activity, it does not produce relative motion to lean on safety brake control activity handle, it deviates from to avoid the sewing nail among the nail storehouse, nevertheless independent nail storehouse subassembly gets into human tissue department that needs the coincide through trocar, still have the risk that the sewing nail deviates from at the in-process that gets into, a compression wave spring has been adorned between nail storehouse and ejector pin piece to this application, exert a decurrent elasticity to the ejector pin piece under natural state, make and always be in the nail storehouse before sewing nail and percussion and do not deviate from.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of a staple holder assembly according to one embodiment of the present application;
FIG. 1a is a cross-sectional view of the staple holder assembly shown in FIG. 1;
FIG. 2 is a cross-sectional view of a staple cartridge assembly according to one embodiment of the present application;
FIG. 3 is a schematic view of a staple holder assembly and a staple cartridge assembly coupled according to one embodiment of the present application;
FIG. 3a is a cross-sectional view of FIG. 3;
FIG. 3b is an enlarged view of a portion of FIG. 3a circled;
FIG. 4a is a partial cross-sectional view of a pre-firing instrument according to one embodiment of the present application;
FIG. 4b is a partial cross-sectional view of the instrument after firing according to one embodiment of the present application;
FIG. 5 is a schematic view of the internal structure of a handle assembly according to one embodiment of the present application;
FIG. 6 is an assembled block diagram of a circular stapler usable under a laparoscope according to one embodiment of the present application.
In the figure: 1. a nail seat assembly; 11. a nail seat; 12. a cutter ring is cushioned; 112. a clamping spring piece; 112a, a convex structure outside the clamping spring piece; 112b, a protruding structure at the inner side of the clamping spring piece; 112c, a clip spring head; 112d, a clip leaf body;
2. a staple cartridge assembly; 21. a staple cartridge; 211. the bottom surface of the nail bin; 22. a nail bin sleeve; 221. an inner hole of the nail bin sleeve; 222. the contact surface of the nail bin sleeve and the nail pushing seat; 223. the inner side surface of the nail bin sleeve; 23. a nail pushing sheet; 231. the lower connecting surface of the ejector pin sheet and the wave spring; 24. a wave spring;
3. a handle assembly; 31. an outer sleeve; 31a, an outer cannula distal end; 31b, a proximal end of the outer cannula; 32. a nail pushing seat; 32a, connecting surfaces of the nail pushing seat and the nail pushing sheet; 33. adjusting the nut; 34. a movable handle; 35. a screw system; 35a, screw system tip.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings of the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
A circular anastomat used under a laparoscope comprises a nail seat component 1, a nail bin component 2 and a handle component 3 which are arranged in a split mode; the nail seat assembly 1, the nail bin assembly 2 and the handle assembly 3 are sequentially placed into human tissues and then assembled for use.
The nail seat assembly 1 comprises a pull rod 111, the pull rod 111 penetrates through the nail bin assembly 2 to be connected with the handle assembly 3, and the nail bin assembly 2 is connected with the pull rod 111 and the handle assembly 3. The outer cannula at the front end of the handle assembly 3 is smaller in size than a laparoscope and can be inserted into a patient for operation via the laparoscope.
Referring to fig. 1 and 1a, the staple holder assembly 1 comprises a staple holder 11, a knife pad ring 12 and a staple holder cover, the staple holder 11 comprises a pull rod 111 and a clamping spring plate 112, and the staple holder assembly 1 can pass through a tissue incision to reach a surgical position directly or with the aid of other instruments. The pull rod 111 is a hollow rod, the top end of the pull rod 111 is connected with the nail seat cover, and a groove parallel to the longitudinal axis of the pull rod 111 is formed in the side wall of one end, far away from the nail seat cover, of the pull rod 111. The clip spring 112 is a rigid elastic body, and is used in cooperation with the pull rod 111. The clip spring 112 includes a clip spring head 112c and a clip spring body 112d, the clip spring head 112c is connected with the pull rod 111, for example, is clipped on the top end of the pull rod 111 by interference fit, the clip spring body 112d passes through the tube body of the pull rod 111 and passes through the groove on the pull rod 111, and the clip spring body 112d can be elastically deformed. The clip blade body 112d includes an outer protrusion 112a and an inner protrusion 112 b.
In the embodiment shown in fig. 1 and 1a, two symmetrically arranged clip pieces 112 are included, two clip piece heads 112c are contacted with each other and fixed on the top end of the pull rod 111, and two clip piece bodies 112d are separated from each other, for example, a part of the inner side of the clip piece body 112d can be removed so that the two clip pieces 112 are connected only through the heads 112 c. The body 112d is provided with an outward expansion area corresponding to the groove on the pull rod 111, the outward expansion area penetrates out of the pull rod 111 from the groove, and the outer side protrusion 112a and the inner side protrusion 112b are arranged on the outward expansion area. The flaring is formed, for example, by bending the leaf blade 112d outwards, as shown in fig. 1 a.
Referring to fig. 2, the staple cartridge assembly 2 comprises a staple cartridge 21, a staple cartridge sleeve 22, a staple pushing plate 23 and a wave spring 24, wherein a staple cartridge sleeve inner hole 221 through which the pull rod 111 passes is formed in the center of the interior of the staple cartridge sleeve 22, the top of the wave spring 24 is connected with the bottom surface 211 of the staple cartridge 21, the bottom of the wave spring 24 is connected with a step surface 231 on the inner side of the staple pushing plate 23, and before the staple cartridge assembly 2 is connected with the handle assembly 3, the wave spring 24 keeps vertical downward pressure on the staple pushing plate 23 (i.e. in a direction away from the staple cartridge 21) all the time, so that staples are prevented from falling out of the staple cartridge 21; after the nail bin assembly 2 is connected with the handle assembly 3, a certain force is applied to the movable handle to fire the suture nails, and the wave spring can move relatively between the bottom surface 211 and the step surface 231 to complete the firing action. The staples are, for example, titanium staples.
Referring now to fig. 3, 3a, 3b, it will be described how the staple holder assembly 1 is coupled to the cartridge assembly 2. In this embodiment, the relative connection between the staple holder assembly 1 and the staple cartridge assembly 2 is restrained by means of hooks on the elastic clip springs 112. Specifically, when the nail holder assembly 1 is connected with the nail cartridge assembly 2, the pull rod 111 of the nail holder assembly 1 penetrates through the nail cartridge sleeve inner hole 221 of the nail cartridge assembly 2, and when the outer side protrusion 112a of the clamping spring piece 112 protruding outside the pull rod 111 passes through the nail cartridge sleeve inner hole 221, because the pull rod 111 is not connected with the screw rod system of the handle assembly 3 at this time, and a deformation space of the clamping spring piece 112 is arranged in the pull rod, the clamping spring piece 112 is extruded by the nail cartridge sleeve inner hole 221 to generate inward elastic deformation, as shown by an arrow in fig. 1a, so that the connection with the nail holder assembly 1 is smoothly completed in a position avoiding manner, after the outer side protrusion 112a passes through the nail cartridge sleeve inner hole 221, the outer side protrusion 112a is not extruded any more, and the clamping spring piece 112 elastically restores to a normal position outwards. After the connection, the nail magazine assembly 2 can move towards the direction of the nail holder assembly 1, as shown by the arrow in fig. 3a, until the outer protrusion 112a is clamped in the hole of the inner hole 221 of the nail magazine sleeve, at this time, the outer protrusion 112a stops to prevent the nail magazine assembly 2 from being pulled out from the nail magazine assembly 1, and thus, the connection between the nail magazine assembly 1 and the nail magazine assembly 2 is completed.
Referring to fig. 5, the handle assembly 3 includes an outer sleeve 31, a nail pushing seat 32, an adjusting nut 33, a movable handle 34 and a screw rod system 35. Wherein the outer sleeve 31 has an outer diameter of no more than 12mm and is accessible to trocar. The screw system 35 includes a tip 35a that is generally conical and has an annular groove. The nail pushing seat 32 is positioned at the front end of the outer sleeve 31 and moves relative to the outer sleeve through the inner sleeve positioned in the outer sleeve 31, the movable handle 34 controls the movement of the nail pushing seat 32, and the handle assembly 3 is connected with the cartridge assembly 2 and then the nail pushing seat 32 completes the firing forming and separation of the suturing nails.
The connection between the handle assembly 3 and the assembled cartridge assembly 2 and cartridge assembly 1 will now be described with reference to figures 4a and 4 b. When the screw rod system 35 of the handle assembly 3 is inserted into the pull rod 111 of the nail seat assembly 1, the inner protrusion 112b of the clamping spring piece 112 is elastically deformed outwards until the inner protrusion 112b is clamped into the groove of the tip 35a of the screw rod system, the elastic deformation is recovered, the movable handle 34 is in a locking state to prevent the tip 35a of the screw rod system from being disengaged from the groove, and the connection between the handle assembly 3 and the nail seat assembly 1 is completed, as shown in fig. 4 a. At this time, the inner side surface 223 of the cartridge case and the distal end 31a of the outer sleeve are also fixedly connected, for example, by a snap connection to complete the connection between the handle assembly 3 and the cartridge assembly 2.
Referring to fig. 4b, after the handle assembly 3 is connected with both the staple holder assembly 1 and the staple cartridge assembly 2, the handle assembly can be fired, the staple pushing holder 32 of the present application is in contact connection with the staple pushing sheet 23 in the staple cartridge assembly instead of being fixedly connected, the staple pushing holder 32 pushes the staple pushing sheet 23 forward, the staple pushing holder 32 is located at the position shown in fig. 4b when the firing is completed, and the staple pushing holder 32 is in contact connection with the inwardly protruded step surface 222 of the staple cartridge sleeve and stops on the step surface 222 of the staple cartridge sleeve 33.
The method of using the laparoscopic circular stapler of the present application is described below in terms of surgical esophagogastrostomy. Firstly, the nail seat component 1 is passed through a tissue incision or a human body cavity to reach a surgical position with the assistance of other instruments, and a purse is tied. Then the nail box component 2 passes through a tissue incision or a human body cavity under the assistance of other instruments to reach the position of the nail seat component 1 in the previous step, and is connected with the nail seat component 1, as shown in fig. 3a, the outer side bulge 112a of the nail seat component 1 is clamped at the hole opening of the inner hole 221 of the nail box sleeve of the nail box component 2.
After the nail holder assembly 1 and the nail cartridge assembly 2 are connected, the distal end 31a of the outer sleeve of the handle assembly 3 is moved into a surgical position from the trocar, the screw rod system 35 is inserted into the pull rod 111 of the nail holder assembly 1, and the inner side protrusion 112b of the clamping spring piece is clamped into the groove of the tip 35a of the screw rod system 35, as shown in fig. 4 a. Meanwhile, the inner side surface 223 of the magazine sleeve is fixedly connected with the outer sleeve 31 a.
At this time, the instrument is assembled in the human body, the adjusting nut 33 is rotated according to the direction indicated on the instrument, so that the indicating needle falls on the proper position of the green area, the safety brake is opened, and the firing is carried out. When the firing is finished, the nail pushing seat 32 is at the position shown in fig. 4b, the nail pushing seat 32 is contacted with the step surface 222 protruding inwards of the nail bin sleeve and stops on the step surface 222 of the nail bin sleeve 33, and the handle is released after the rest time of 30s, so that the firing is finished. After the percussion is finished, the nail pushing seat 32 is separated from the nail bin assembly 2, the human tissue is withdrawn, and then the nail bin assembly 2 and the nail seat assembly 1 are taken out in sequence.
The round anastomat under the laparoscope adopts the structure that the nail seat assembly, the detachable nail bin assembly and the handle assembly are arranged in a split mode and are used after being assembled, so that the size of the part, connected with the nail bin, of the handle, namely the front end of the handle assembly is greatly reduced, the round anastomat is suitable for minimally invasive surgery, and the round anastomat under the laparoscope can easily enter a patient body through the laparoscope in the minimally invasive surgery without obstacles; the target tissue is sutured and cut after being assembled with the pre-placed nail bin assembly and the nail seat assembly, so that the use is convenient; in addition, can select the nail storehouse subassembly and the nail seat subassembly of not unidimensional according to sewing up the size of a dimension, it is convenient to change, has the universality.
The foregoing is a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations are also regarded as the protection scope of the present application.
Claims (17)
1. A circular anastomat used under a laparoscope comprises a nail seat assembly, a nail bin assembly and a handle assembly which are arranged in a split mode; the nail seat assembly comprises a pull rod, the pull rod penetrates through the nail bin assembly to be connected with the handle assembly, and the nail bin assembly is connected with the pull rod and the handle assembly; the outer cannula at the front end of the handle assembly is smaller in size than a laparoscope for delivery through the laparoscope.
2. The circular stapler applicable to laparoscope according to claim 1, wherein the staple holder assembly, the staple cartridge assembly and the handle assembly are sequentially placed into human tissues and then assembled for use.
3. The circular stapler applicable to laparoscope according to claim 2, wherein the staple holder assembly further comprises an elastic deformation component, the elastic deformation component comprises a fixed end and an elastic deformation end, the fixed end is fixed in the pull rod, the elastic deformation end protrudes out of the pull rod, and when the pull rod passes through the staple cartridge assembly, the elastic deformation end is compressed until the elastic deformation end penetrates out of the staple cartridge assembly and is elastically restored to fixedly connect the pull rod with the staple cartridge assembly.
4. The circular stapler capable of being used under the laparoscope according to claim 3, wherein the pull rod is a hollow rod, the elastic deformation component is a clip spring, the clip spring comprises a clip spring head and a clip spring body, the elastic deformation end is arranged on the clip spring body, the clip spring head is fixed on the pull rod, a groove parallel to the longitudinal axis of the pull rod is arranged on the side wall of one end of the pull rod far away from the clip spring head, the clip spring body passes through the tube body of the pull rod, and the elastic deformation end penetrates out of the groove on the pull rod.
5. The circular stapler laparoscopically usable according to claim 4, wherein said head of said clip spring is clipped on the top end of the pull rod by interference fit.
6. The circular stapler laparoscopically usable according to claim 4, wherein said elastically deformable end is provided with a medial connection member and a lateral connection member, one of said medial connection member and said lateral connection member being connected to said cartridge assembly and the other of said medial connection member and said lateral connection member being connected to said handle assembly.
7. A circular stapler usable under laparoscope according to claim 6, wherein said medial and lateral attachment members are selected from the group consisting of protrusions, grooves, hook-like structures.
8. The circular stapler usable under laparoscope according to claim 7, wherein the inner connecting member of the clip spring body is an inner protrusion, and the outer connecting member is an outer protrusion.
9. The circular stapler applicable to laparoscope according to claim 8, wherein the nail cartridge assembly comprises an inner hole of the nail cartridge sleeve, when the pull rod passes through the inner hole of the nail cartridge sleeve, the outer protrusion of the clamping spring piece is pressed by the inner hole of the nail cartridge sleeve to generate inward elastic deformation, after the outer protrusion passes through the inner hole of the nail cartridge sleeve, the elastic deformation of the clamping spring piece is recovered, and the outer protrusion is clamped in an orifice of the inner hole of the nail cartridge sleeve to connect the nail seat assembly with the nail cartridge assembly.
10. The circular stapler applicable to laparoscope according to claim 8, wherein the handle assembly comprises a screw rod system, the screw rod system comprises a conical tip with an annular groove, the screw rod system of the handle assembly can be inserted into the pull rod of the nail holder assembly, the inner protrusion of the clamping spring plate is elastically deformed outwards until the inner protrusion is clamped into the groove of the tip of the screw rod system, the elastic deformation of the clamping spring plate is recovered, the movable handle is in a locking state, and the nail holder assembly is connected with the handle assembly to complete connection.
11. The circular stapler laparoscopically usable according to any one of claims 1-10, wherein said cartridge assembly comprises a cartridge, a cartridge housing, a staple pushing plate, and an elastic member, wherein said hole in said cartridge housing is located at the center of the inside of said cartridge housing, the top of said elastic member is connected to the bottom of said cartridge, the bottom of said elastic member is connected to a step surface inside said staple pushing plate, and before said cartridge assembly is connected to said handle assembly, said elastic member keeps applying pressure to said staple pushing plate in a direction away from said cartridge to prevent staples from falling out of said cartridge before said staples are fired; the nail bin assembly is connected with the handle assembly and then used for triggering the suture nails, and the elastic component moves relatively between the bottom surface of the nail bin and the step surface of the nail pushing piece so as to complete triggering action.
12. The circular stapler usable under a laparoscope according to claim 11, wherein the elastic member is a wave spring.
13. The circular stapler usable under laparoscope according to claim 11, wherein said handle assembly comprises an outer sleeve, a staple pusher, an adjustment nut, a movable handle and said screw rod system; the diameter of the outer sleeve is set to be capable of entering the endoscope puncture outfit; the nail pushing seat is located at the front end of the outer sleeve and moves relative to the outer sleeve under the control of the movable handle, and when the nail pushing seat is triggered, the nail pushing seat is in contact connection with a nail pushing sheet in the nail bin assembly and pushes the nail pushing sheet to trigger, form and separate suturing nails.
14. The circular stapler laparoscopic useful according to claim 10, wherein when said handle assembly is connected to the assembled staple holder assembly and cartridge assembly, the inner side of said cartridge housing is fixedly connected to the distal end of said outer cannula when said movable handle is in the locked position.
15. The circular stapler laparoscopically usable according to claim 14, wherein said inner side of said cartridge housing is connected to said distal end of said outer cannula by means of a snap fit.
16. The circular stapler laparoscopically usable according to claim 13, wherein the inside of said cartridge housing includes an inwardly protruding step surface, and said staple pusher holder contacts and rests on said step surface of said cartridge housing when firing is completed.
17. The circular stapler laparoscope according to claim 13, wherein the outer cannula is curved to facilitate access to body tissue.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810614237.7A CN110604604A (en) | 2018-06-14 | 2018-06-14 | Round anastomat under laparoscope |
| PCT/CN2019/090058 WO2019237973A1 (en) | 2018-06-14 | 2019-06-05 | Circular stapler for laparoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810614237.7A CN110604604A (en) | 2018-06-14 | 2018-06-14 | Round anastomat under laparoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110604604A true CN110604604A (en) | 2019-12-24 |
Family
ID=68841928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810614237.7A Pending CN110604604A (en) | 2018-06-14 | 2018-06-14 | Round anastomat under laparoscope |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110604604A (en) |
| WO (1) | WO2019237973A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113648009A (en) * | 2021-09-02 | 2021-11-16 | 常州威克医疗器械有限公司 | Suturing nail, nail bin assembly and anastomat |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2418839Y (en) * | 2000-03-30 | 2001-02-14 | 马剑文 | Tubular anastomat for operating curved tube with replaceable push seat assembly |
| CN201157377Y (en) * | 2008-01-11 | 2008-12-03 | 常州市智业医疗仪器研究所 | Push-nail base assembly of tube shaped anastomat |
| US20140263556A1 (en) * | 2013-03-14 | 2014-09-18 | Covidien Lp | Powered Stapling Apparatus |
| CN104287802A (en) * | 2014-11-07 | 2015-01-21 | 常州威克医疗器械有限公司 | Replaceable staple cartridge subassembly for disposable round anastomat |
| CN104490439A (en) * | 2014-08-13 | 2015-04-08 | 南京大学医学院附属鼓楼医院 | Totally-laparoscopic circular stapler nail anvil embedding device and manufacturing method |
| EP3225192A1 (en) * | 2016-04-01 | 2017-10-04 | Ethicon LLC | Circular stapling system comprising an incisable tissue support |
| CN108186061A (en) * | 2018-01-19 | 2018-06-22 | 俞世安 | Circular staplers under laparoscope |
| CN210019489U (en) * | 2018-06-14 | 2020-02-07 | 上海逸思医疗科技有限公司 | Round anastomat under laparoscope |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2461494Y (en) * | 2000-07-06 | 2001-11-28 | 张祖仁 | Tubular anastomat for surgery |
| CN101856250B (en) * | 2010-06-07 | 2011-08-31 | 常州威克医疗器械有限公司 | Disposable automatic safety circular anastomat |
| CN107049402B (en) * | 2017-05-16 | 2023-09-15 | 上海博洽医疗器械有限公司 | Quick assembling and disassembling structure of actuating head of surgical circular anastomat |
-
2018
- 2018-06-14 CN CN201810614237.7A patent/CN110604604A/en active Pending
-
2019
- 2019-06-05 WO PCT/CN2019/090058 patent/WO2019237973A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2418839Y (en) * | 2000-03-30 | 2001-02-14 | 马剑文 | Tubular anastomat for operating curved tube with replaceable push seat assembly |
| CN201157377Y (en) * | 2008-01-11 | 2008-12-03 | 常州市智业医疗仪器研究所 | Push-nail base assembly of tube shaped anastomat |
| US20140263556A1 (en) * | 2013-03-14 | 2014-09-18 | Covidien Lp | Powered Stapling Apparatus |
| CN104490439A (en) * | 2014-08-13 | 2015-04-08 | 南京大学医学院附属鼓楼医院 | Totally-laparoscopic circular stapler nail anvil embedding device and manufacturing method |
| CN104287802A (en) * | 2014-11-07 | 2015-01-21 | 常州威克医疗器械有限公司 | Replaceable staple cartridge subassembly for disposable round anastomat |
| EP3225192A1 (en) * | 2016-04-01 | 2017-10-04 | Ethicon LLC | Circular stapling system comprising an incisable tissue support |
| CN108186061A (en) * | 2018-01-19 | 2018-06-22 | 俞世安 | Circular staplers under laparoscope |
| CN210019489U (en) * | 2018-06-14 | 2020-02-07 | 上海逸思医疗科技有限公司 | Round anastomat under laparoscope |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113648009A (en) * | 2021-09-02 | 2021-11-16 | 常州威克医疗器械有限公司 | Suturing nail, nail bin assembly and anastomat |
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| Publication number | Publication date |
|---|---|
| WO2019237973A1 (en) | 2019-12-19 |
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Address after: Block A, 199 Lane 1, Tianxiong Road, Pudong New Area, Shanghai, 201318 Applicant after: Shanghai Yisi Medical Technology Co.,Ltd. Address before: Block A, 199 Lane 1, Tianxiong Road, Pudong New Area, Shanghai, 201318 Applicant before: SHANGHAI YISI MEDICAL TECHNOLOGY Co.,Ltd. |