CN114391909B - Chamber mirror pocket pincers - Google Patents

Abstract

The invention relates to the technical field of surgical instruments, in particular to an endoscope pocket forceps. An endoscope purse-string forceps comprises a forceps head, a clamping mechanism, a flattening mechanism, a limiting mechanism and a sewing mechanism. The binding clip is two, corresponds the setting from top to bottom for the centre gripping intestines tube, the one side towards the intestines tube is the clamping face in the use. The clamping mechanism is configured to controllably urge the two jawarms toward and away from one another. The flattening mechanism is two, and every flattening mechanism sets up on a tong head, including grinding roller group and drive assembly, grinding roller group includes two grinding rollers. The limiting mechanism comprises a measuring assembly, a transmission assembly and a positioning assembly. The stitching mechanism comprises two stitching groups, a purse wire and two braking components, wherein each stitching group comprises a plurality of stitching nails. According to the endoscope pocket forceps, the flattening mechanism is arranged, so that the positions and the number of the staples can be adjusted according to the widths of different intestinal tubes, and the problem that the fastened staples cannot be fastened to the intestinal tubes is avoided.

Description

Chamber mirror pocket pincers

Technical Field

The invention relates to the technical field of surgical instruments, in particular to an endoscope pocket forceps.

Background

The purse-string forceps is a matched surgical instrument in the gastrointestinal tract anastomosis operation, and is used for purse-string at the broken end of an intestinal canal in the gastrointestinal tract anastomosis operation, a circular anastomat nail-propping seat is placed behind the purse-string, and the nail-propping seat is connected with a circular anastomat main body to complete end-to-end anastomosis of the intestinal canal. The common purse-string forceps are composed of a handle, a jaw, a stitching nail and a purse string, the jaw and the handle are made of polycarbonate materials, the jaw of the existing purse-string forceps is often too long or too short in an operation, operation difficulty and operation time are increased, and meanwhile, due to the fact that the widths of intestinal canals of different parts or different people are not the same, suturing can not be carried out according to different conditions when the purse-string forceps are used, and adaptability is low.

Disclosure of Invention

The invention provides an endoscope purse-string forceps, which aims to solve the problems of complex operation and small applicability of the existing purse-string forceps.

The invention discloses an endoscope pocket forceps, which adopts the following technical scheme:

an endoscope purse-string forceps comprises a forceps head, a clamping mechanism, a flattening mechanism, a limiting mechanism and a sewing mechanism; the two forceps heads are correspondingly arranged up and down and are used for clamping the intestinal canal, and one surface facing the intestinal canal is a clamping surface in the use process; the clamping mechanism is configured to controllably urge the two tong heads toward and away from each other; flattening mechanism is two, and every flattening mechanism sets up on a tong head, including roller group and drive assembly, and roller group includes two rollers, and drive assembly configures into and moves roller and intestinal pipe wall to counterbalance at two tong heads in-process that the intestinal pipe is close to forerunner, later orders about the roller to roll along the length direction of intestinal pipe after roller and intestinal pipe wall counterbalance, and orders about two rollers of roller group to roll to one side of keeping away from each other along the intestinal pipe.

The limiting mechanism comprises a measuring assembly, a transmission assembly and a positioning assembly; each tong head is provided with a slideway arranged along the axial direction of the grinding drum; the number of the measuring assemblies is two, each measuring assembly comprises two measuring columns which are correspondingly arranged up and down, each measuring column is slidably arranged along the slide way and is slidably arranged on the binding clip along the up-down direction, and the first end parts of the measuring columns are connected with the binding clip through first springs; the transmission assembly is configured to drive the two measuring assemblies to approach to two sides of the intestinal canal after the grinding drum rolls to a preset position along the intestinal canal; the positioning assembly is configured to stop movement of the measurement assembly after the second end of the measurement column contacts the sidewall of the intestinal tube.

The stitching mechanism comprises two stitching groups, a purse wire and two braking components, each stitching group is arranged on one jaw and comprises a plurality of stitching nails, and the plurality of stitching nails of each stitching group are sequentially arranged along the direction of the axis of the grinding drum; the purse string passes through a plurality of staples of one staple group and passes out of a plurality of staples of the other staple group; each brake assembly is configured to cause a plurality of staples located between extensions of the two measuring posts to be clasped into the intestine as the two jaws continue to approach the intestine after the measuring posts stop moving.

Further, the driving assembly comprises a rack, a first gear, a connecting rod, a mounting seat and a toothed belt; the two ends of the binding clip are provided with chutes which are perpendicular to the direction space of the axis of the grinding drum, the racks are vertically arranged and positioned at the two ends of the binding clip, the racks are connected with the binding clip in a sliding way in the vertical direction through second springs, and the racks are provided with sliding blocks which can slide along the chutes; the connecting rod is connected to the lower ends of the two racks corresponding to the front and the back, and the grinding drum is rotatably sleeved on the connecting rod; the mounting seat is slidably arranged along the sliding groove, and the first gear is rotatably arranged on the mounting seat and meshed with the rack; the toothed belt is arranged on the clamping surface of the tong head and is used for being meshed with the first gear.

Further, the transmission assembly comprises a slide rod, a screw shaft, a second gear and two pushing pieces; the sliding rod is fixedly arranged on the clamping surface of the tong head, and the axis of the sliding rod is parallel to the axis of the grinding drum; the screw shaft is rotatably arranged on the clamping surface of the tong head, the slide bars are arranged in parallel, and the second gear is arranged at one end of the screw shaft and is arranged to be meshed with the first gear after the first gear is disengaged from the toothed belt; each pushing piece comprises a first moving rod and a second moving rod, the first end of the first moving rod and the first end of the second moving rod are hinged to each other, the second end of the first moving rod is sleeved on the screw shaft and is in screw transmission with the screw shaft, the first moving rod and the second moving rod are configured to move close to one side of the measuring column along the axial direction of the screw shaft when the screw shaft rotates, the second end of the second moving rod can slide along the screw shaft, the second end of the second moving rod is further provided with a mounting block, a third spring is arranged on the mounting block, and the third spring is connected with the measuring column.

Furthermore, a vertical groove is formed in the measuring column, and a limit groove is formed in the wall of the vertical groove; the first end part of the first moving rod and the first end part of the second moving rod are hinged through a hinge shaft, the hinge shaft is positioned in the vertical groove, the hinge shaft is inserted into the limiting groove in an initial state, one sides of the first moving rod and the second moving rod, which are far away from the hinge shaft, are arranged at intervals with the groove wall of the vertical groove, and an included angle is formed between the first moving rod and the second moving rod in the initial state; the positioning assembly comprises a fixed block, a movable block and a fourth spring; the fixed blocks are arranged at two ends of the clamping surface of the binding clip, and two ends of the sliding rod are fixed on the fixed blocks; the movable blocks are arranged at the two ends of the binding clip, and the two ends of the screw shaft are rotatably arranged on the fixed blocks; one end of the fourth spring is connected with the fixed block, the other end of the fourth spring is connected with the movable block, and the fourth spring is in a compression state in an initial state.

Furthermore, each brake assembly comprises two fixing rods, a fixing plate, a plurality of sliding rods, a plurality of clamping plate groups, a plurality of pull rod groups and a telescopic plate; the two fixed rods are fixedly arranged on the clamping surface of the tong head; the fixing plates are fixedly arranged on the two fixing rods and extend along the direction vertical to the axis of the grinding drum; each clamping plate group comprises two clamping plates, the two clamping plates are arranged on a fixed plate in a relatively sliding manner along the horizontal direction, and a pressure spring is arranged between the two clamping plates of each clamping plate group; the stitching nail is bent and extended from one end to the other end, a clamping opening is formed at the two ends of the stitching nail, the stitching nail can deform when stressed, two positioning holes are formed in the wall surface of the stitching nail, a positioning block is arranged on one side, opposite to the two clamping plates, of each clamping plate group, and the positioning blocks are inserted into the corresponding positioning holes; a through hole which is communicated up and down is arranged on the fixing plate; the sliding rods penetrate through the through holes and are slidably mounted on the fixed rods in the vertical direction, and every two adjacent sliding rods are slidably connected in the vertical direction; each pull rod group comprises two pull rods, one end of each pull rod is hinged to the clamping plate, the other end of each pull rod is hinged to the sliding rod, and the two pull rods of each pull rod group are in a horizontal state in an initial state; the expansion plate sets up along the horizontal direction telescopic, and the both ends of every expansion plate are connected respectively in two measuring posts, and the expansion plate sets up between binding clip and brake assembly under the initial condition.

Furthermore, fixed sleeves are further installed on two side walls of the forceps head, the endoscope purse-string forceps further comprise a moving frame, inserting rods are installed on two sides of the upper surface of the moving frame, the second spring is sleeved on the inserting rods, one end of each second spring is connected with the moving frame, the other end of each second spring is connected with the fixed sleeves, and the racks are fixedly connected with the moving frame.

Furthermore, a support rod is arranged on one side, facing the movable block, of the fixed block, and the support rod is sleeved with a fourth spring.

Furthermore, the clamping mechanism comprises a supporting plate, a limiting rod and two clamp handles; the two clamp heads are slidably arranged on the supporting plate along the vertical direction, and one end of each clamp head close to the supporting plate is provided with a hinge lug; the limiting rod is horizontally arranged and fixedly mounted in the middle of the supporting plate, a guide groove extending along the length direction of the limiting rod is arranged on the limiting rod, and a sliding column capable of sliding along the guide groove is arranged on the guide groove; each forceps handle comprises two horizontal sections and a vertical section for connecting the two horizontal sections, wherein the horizontal section of one forceps handle is hinged to one hinge lug, and the middle part of the vertical section is rotatably connected to the sliding column.

Furthermore, a baffle is arranged at the first end part of the measuring column, one end of the first spring is connected with the baffle, the other end of the first spring is connected with a sliding plate, and the sliding plate is slidably arranged along the tong head; the forceps head is also provided with a shell.

Further, of the two measuring posts of each measuring assembly, the first end of one measuring post is provided with a socket, and the first end of the other measuring post is provided with a plug for inserting into the socket.

The invention has the beneficial effects that: according to the endoscope purse-string forceps, the positions and the number of the staples can be adjusted according to the widths of different intestinal tubes by arranging the flattening mechanism, so that the staples cannot be buckled to the intestinal tubes. Specifically, by arranging the flattening mechanism, the pioneer enables the rolling cylinder to roll along the length direction of the intestinal canal to flatten the intestinal canal. By arranging the limiting mechanism, the width of the intestinal canal is determined by utilizing the two measuring components. A plurality of staples between the extension wires of the two measuring assemblies are then clasped into the intestine using a staple mechanism. When in suturing, the two ends of the purse string are pulled simultaneously to suture the intestinal canal. Can be suitable for intestinal canals with different thicknesses, reduces the operation difficulty and the operation time, and has wide application range.

Further, since only the staples having the same width as the intestinal tube are fastened, the staples fastened into the intestinal tube when the purse wire is pulled can be released without leaving the unfastened staples.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in 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 invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of an endoscopic purse-string forceps of the present invention;

FIG. 2 is a schematic structural view of an endoscope purse-string forceps embodiment of the invention with the shell removed;

FIG. 3 is a front view of the de-jacketing and flattening mechanism of an embodiment of an endoscopic purse-string forceps of the present invention;

FIG. 4 is a side view of the de-jacketing and flattening mechanism of an embodiment of an endoscopic purse-string forceps of the invention;

FIG. 5 is a partial structural view of the initial state of the stitching mechanism of the embodiment of the endoscope purse-string forceps;

FIG. 6 is a partial structural view of the use state of the stitching mechanism of the embodiment of the endoscope purse-string forceps;

FIG. 7 is a schematic view of a part of the meshing state of a first gear and a second gear of an embodiment of a cavity mirror purse-string forceps according to the invention;

FIG. 8 is a schematic structural view of the measurement assembly of an embodiment of an endoscopic purse-string forceps of the invention formed as a whole;

FIG. 9 is a schematic view of a portion of the structure of FIG. 8;

FIG. 10 is a partial structural view of a limiting mechanism in an initial state of an embodiment of an endoscopic purse-string forceps according to the invention;

FIG. 11 is a partial front view of the brake assembly of an embodiment of a laparoscopic purse-string forceps of the present invention;

figure 12 is a schematic view of an embodiment of an endoscopic purse-string forceps in a state when the fourth spring is released.

In the figure: 100. a clamp handle; 101. a traveler; 102. a limiting rod; 103. a binding clip; 104. a support plate; 200. grinding the cylinder; 201. a rack; 202. a first gear; 203. a mounting seat; 204. a second gear; 205. a screw shaft; 206. a first movable bar; 207. a second movable bar; 208. a movable block; 209. a fourth spring; 210. a third spring; 211. a measuring column; 212. a first spring; 213. a movable frame; 214. mounting a block; 215. hinging a shaft; 216. a fixed block; 217. a slide bar; 218. a second spring; 300. fixing the rod; 301. a fixing plate; 302. a splint; 303. a slide bar; 304. a pull rod; 305. stitching; 306. a retractable plate; 400. a housing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

In the embodiment of the endoscope purse-string forceps, as shown in fig. 1 to 12, the endoscope purse-string forceps comprise aforceps head 103, a clamping mechanism, a flattening mechanism, a limiting mechanism and a sewing mechanism. Thebinding clip 103 is two, corresponds the setting from top to bottom for the centre gripping intestines tube, and the one side towards the intestines tube is the clamping face in the use. The clamping mechanism is configured to controllably urge the twojaws 103 toward and away from each other such that thejaws 103 clamp the intestinal tube. The flattening mechanism is two, and every flattening mechanism sets up on abinding clip 103, including roller group and drive assembly, roller group includes tworollers 200, and drive assembly configures into and movesroller 200 and intestines tube wall and offset at the in-process that twobinding clips 103 are close to the intestines tube, later orders aboutroller 200 afterroller 200 supports with the intestines tube wall and rolls along the length direction of intestines tube, and orders about tworollers 200 of roller group and roll to the one side of keeping away from each other along the intestines tube, flattens the intestines tube.

The limiting mechanism comprises a measuring assembly, a transmission assembly and a positioning assembly. Eachtong head 103 is provided with a slideway arranged along the axial direction of the grindingdrum 200. The number of the measuring components is two, each measuring component comprises two measuringcolumns 211 which are correspondingly arranged up and down, each measuringcolumn 211 is slidably arranged along the slide way and slidably arranged on theforceps head 103 along the up-down direction, the first end parts of the measuringcolumns 211 are connected with theforceps head 103 throughfirst springs 212, and the two measuringcolumns 211 of the measuring components are combined into a whole after being contacted. The transmission assembly is configured to drive the two measuring assemblies to approach to both sides of the intestine after the rollingdrum 200 rolls to a preset position along the intestine. The positioning assembly is configured to cause the measuring assembly to stop moving after the second end of the measuringcolumn 211 contacts the side of the intestine, where the distance between the two measuring assemblies is the width of the intestine.

The stitching mechanism comprises two stitching groups, a purse string and two braking components, each stitching group is arranged on one bindingclip 103 and comprises a plurality ofstitching nails 305, and the stitching nails 305 of each stitching group are sequentially arranged along the direction of the axis of the rollingbarrel 200. The purse wire passes through the plurality ofstaples 305 of one staple set and out of the plurality ofstaples 305 of another staple set. Each of the brake assemblies is configured to cause a plurality ofstaples 305, which are located between extensions of the two measuringposts 211, to be clasped into the intestine as the twojaws 103 continue to approach the intestine after the measuringposts 211 stop moving. When suturing, the two ends of the purse string are pulled simultaneously to separate a plurality of the suture nails buckled into the intestinal canal from the rest suture nails.

In this embodiment, the driving assembly includes arack 201, afirst gear 202, a connecting rod, amount 203, and a toothed belt. The two ends of thebinding clip 103 are provided with sliding grooves perpendicular to the direction space of the axis of the rollingdrum 200, theracks 201 are vertically arranged and located at the two ends of thebinding clip 103, each end of thebinding clip 103 is provided with tworacks 201, theracks 201 are connected with thebinding clip 103 in a sliding manner in the vertical direction through thesecond spring 218, and theracks 201 are provided with sliding blocks capable of sliding along the sliding grooves, so that theracks 201 can be installed on thebinding clip 103 in a sliding manner in the horizontal direction. The connecting rod is connected to the lower ends of the two correspondingracks 201, and the rollingtube 200 is rotatably sleeved on the connecting rod. The mountingseat 203 is slidably disposed along the sliding slot, thefirst gear 202 is rotatably mounted on the mountingseat 203 and meshed with therack 201, and the toothed belt is disposed on the clamping surface of thetong head 103 and used for being meshed with thefirst gear 202. When the twoforceps heads 103 clamp the intestinal canal under manual control, the grindingdrums 200 at the upper and lower sides contact the intestinal canal first, then the forceps heads 103 continuously move to one side close to the intestinal canal against the elasticity of thesecond spring 218, when the forceps heads 103 move relative to therack 201, thefirst gear 202 rotates along therack 201 because thefirst gear 202 is meshed with therack 201, and thefirst gear 202 is meshed with the toothed belt of the forceps heads 103, so that thefirst gear 202 moves to the edge of the forceps heads 103 along the toothed belt on the forceps heads 103 in the rotating process, meanwhile, therack 201 is pushed to move to the edge of the forceps heads 103, therack 201 drives the grindingdrums 200 to move, and the grindingdrums 200 roll along the intestinal canal to grind the intestinal canal flat.

In the present embodiment, the transmission assembly includes aslide bar 217, ascrew shaft 205, asecond gear 204 and two pushing members. The slidingrod 217 is fixedly installed on the clamping surface of thebinding clip 103, and the axis thereof is parallel to the axis of the rollingbarrel 200. Thescrew shaft 205 is rotatably installed on the clamping surface of thetong head 103, theslide bar 217 is arranged in parallel, thesecond gear 204 is installed at one end of thescrew shaft 205 and is arranged to start to mesh with thefirst gear 202 after thefirst gear 202 is disengaged from the toothed belt, and thefirst gear 202 rotates to drive thescrew shaft 205 to rotate around the axis thereof. Each pushing member comprises a first movingrod 206 and a second movingrod 207, a first end of the first movingrod 206 and a first end of the second movingrod 207 are hinged to each other, a second end of the first movingrod 206 is sleeved on thescrew shaft 205 and is in screw transmission with thescrew shaft 205, the first end and the second end are configured to move towards one side close to the measuringcolumn 211 along thescrew shaft 205 when thescrew shaft 205 rotates, a second end of the second movingrod 207 is slidable along thescrew shaft 205, a mountingblock 214 is further arranged on the second end of the second movingrod 207, athird spring 210 is arranged on themounting block 214, and thethird spring 210 is connected with the measuringcolumn 211. When the first movingrod 206 moves, the second movingrod 207 is driven to move synchronously, the second movingrod 207 pushes the measuringcolumns 211 to move through thethird spring 210, and finally, the two measuringcolumns 211 on eachforceps head 103 start to approach each other to the intestinal canal.

In this embodiment, as shown in fig. 10 and 11, a vertical groove is provided on the measuringcolumn 211, and a limit groove is provided on a groove wall of the vertical groove. The first end of the first movingrod 206 and the first end of the second movingrod 207 are hinged through ahinge shaft 215, thehinge shaft 215 is located in a vertical groove, thehinge shaft 215 is inserted into a limiting groove in an initial state, one side of the first movingrod 206 and the second movingrod 207, which is far away from thehinge shaft 215, and the groove wall of the vertical groove are arranged at intervals, and an included angle is formed between the first movingrod 206 and the second movingrod 207 in the initial state. The positioning assembly includes a fixedblock 216, amovable block 208, and afourth spring 209. The fixing blocks 216 are disposed at both ends of the clamping surface of thebit 103, and both ends of the slidingrod 217 are fixed to the fixing blocks 216. Themovable blocks 208 are provided at both ends of thebit 103, and both ends of thescrew shaft 205 are rotatably mounted to the fixed blocks 216. One end of thefourth spring 209 is connected to the fixedblock 216, and the other end is connected to themovable block 208, and is in a compressed state in an initial state. Specifically, a stay bar is arranged on one side of the fixedblock 216 facing themovable block 208, and the stay bar is sleeved with thefourth spring 209 to prevent thefourth spring 209 from bending.

When the measuringcolumn 211 is contacted with the side of the intestine and then cannot move continuously due to the larger resistance of the intestine, the first movingrod 206 can continuously move along thespiral shaft 205 overcoming the elastic force of thethird spring 210 when moving continuously until thehinge shaft 215 is separated from the limit groove on the measuringcolumn 211, and then the first movingrod 206 is separated from the limit of the measuringcolumn 211. At this time, thefourth spring 209 between thefixed block 216 and themovable block 208 is released, so that themovable block 208 moves to a side away from the fixedblock 216 under the pushing of thefourth spring 209, and further thescrew shaft 205 moves to a side away from the slidingrod 217 until the first movingrod 206 and the second movingrod 207 are driven to be in a horizontal state (as shown in fig. 10 to 11), and at the same time, thescrew shaft 205 moves to drive thesecond gear 204 to move, so that thesecond gear 204 is disengaged from thefirst gear 202, so that thesecond gear 204 does not rotate any more, and thescrew shaft 205 does not have a transmission effect on the first movingrod 206 any more, that is, at this time, the measuringcolumn 211 does not have a tendency to move any more and remains on both sides of the intestinal canal.

In the present embodiment, as shown in fig. 5, 6 and 12, each of the brake assemblies includes two fixingrods 300, one fixingplate 301, a plurality of slidingrods 303, a plurality of clamping plate groups, a plurality of pulling rod groups, and oneexpansion plate 306. The two fixingrods 300 are fixedly installed on the clamping surface of theforceps head 103 and are horizontally arranged. The fixingplates 301 are fixedly mounted to the two fixingrods 300 and extend in a direction perpendicular to the axis of thedrum 200. Each clamping plate group comprises two clampingplates 302, the two clampingplates 302 are arranged on onefixing plate 301 in a relatively sliding mode along the horizontal direction, and a compression spring is arranged between the two clampingplates 302 of each clamping plate group. Thestaple 305 is bent from one end to the other end, a clamping opening is formed at the two ends of thestaple 305, the staple 305 can deform when stressed, two positioning holes are formed in the wall surface of thestaple 305, a positioning block is arranged on one side, opposite to the two clampingplates 302 of each clamping plate group, and the positioning blocks are inserted into the corresponding positioning holes to prevent the staple 305 from falling off easily. A through hole which is communicated up and down is arranged on the fixingplate 301; the slidingrods 303 penetrate through the through holes and are slidably mounted on the fixingrod 300 in the vertical direction, and every two adjacent slidingrods 303 are slidably connected in the vertical direction. Each pull rod set comprises twopull rods 304, one end of eachpull rod 304 is hinged to theclamping plate 302, the other end of eachpull rod 304 is hinged to the slidingrod 303, and the twopull rods 304 of each pull rod set are in a horizontal state in an initial state. Theexpansion plate 306 is arranged in a telescopic mode along the horizontal direction, two ends of eachexpansion plate 306 are connected to the two measuringcolumns 211 respectively, theexpansion plate 306 is arranged between thebinding clip 103 and the brake assembly in the initial state, the two measuringcolumns 211 are close to each other, theexpansion plate 306 is driven to contract, and the length of theexpansion plate 306 is the same as the distance between the two measuringcolumns 211 all the time.

When theforceps head 103 moves relative to the measuringcolumn 211 and continues to move close to one side of the intestinal canal, the forceps head 103 starts to push theexpansion plate 306 to move close to one side of the intestinal canal after contacting theexpansion plate 306, so that theexpansion plate 306 pushes the corresponding number of the slidingrods 303, and each slidingrod 303 can slide downwards relative to any slidingrod 303, so that theexpansion plate 306 only pushes part of the slidingrods 303 to move close to one side of the intestinal canal, and the total length of the pushed slidingrods 303 is approximately consistent with the width of the intestinal canal.

The slidingrod 303 moves to a side close to the intestinal canal along the fixingrod 300, the slidingrod 303 pulls theclamping plate 302 to contract inwards through the twopull rods 304 when moving, the clampingplate 302 presses the staple 305 when contracting inwards, thestaple 305 is buckled with the intestinal canal, and meanwhile, the purse string in thestaple 305 is buckled, so that the purse string connects a plurality ofstaples 305 buckled into the intestinal canal. After the completion, thehandles 100 are operated to open the twojaws 103, and the intestine is stapled in a purse-string shape since the staple 305 fastened into the intestine can no longer be carried by theclamp 302, and the section of the intestine can be sutured by pulling the purse-string.

In this embodiment, as shown in fig. 2, fixing sleeves are further installed on two side walls of theforceps head 103, the endoscope purse-string forceps further include a movingframe 213, insertion rods are installed on two sides of the upper surface of the movingframe 213, a second spring is sleeved on the insertion rods, one end of the second spring is connected with the movingframe 213, the other end of the second spring is connected with the fixing sleeves, and therack 201 is fixedly connected with the movingframe 213, so as to enhance the stability of therack 201.

In the present embodiment, as shown in fig. 2 and 3, the clamping mechanism includes asupport plate 104, a limitingrod 102, and two clamp handles 100. The two clamp heads 103 are slidably mounted on thesupport plate 104 along the vertical direction, and one end of eachclamp head 103 close to thesupport plate 104 is provided with a hinge lug. The limitingrod 102 is horizontally arranged and fixedly mounted in the middle of the supportingplate 104, a guide groove extending along the length direction of the limitingrod 102 is arranged on the limitingrod 102, and a slidingcolumn 101 capable of sliding along the guide groove is arranged on the guide groove; each handle 100 comprises two horizontal sections and a vertical section connecting the two horizontal sections, wherein the horizontal section of onehandle 100 is hinged to a hinge lug, and the middle part of the vertical section is rotatably connected to a slidingcolumn 101. When the pliers are used, a person holds the tail ends of the two pliers handles 100 by controlling the pliers heads 103 through the pliers handles 100, so that the other ends of the pliers handles 100 drive the pliers heads 103 to slide along the supportingplate 104, and meanwhile, the slidingcolumns 101 slide along the guide grooves in an adaptive manner.

In this embodiment, as shown in fig. 2, a first end of the measuringcolumn 211 is provided with a baffle, one end of thefirst spring 212 is connected to the baffle, and the other end is connected to a sliding plate, the sliding plate is slidably disposed along thecaliper head 103, so that the measuringcolumn 211 can slide along the sliding way; ahousing 400 is also mounted on thebit 103 to protect the mechanisms on thebit 103.

In this embodiment, as shown in fig. 9, the first end of onemeasuring column 211 of the two measuringcolumns 211 of each measuring assembly is provided with a socket, the first end of theother measuring column 211 is provided with a plug for inserting into the socket, the upper and lower measuringcolumns 211 of the measuring assembly are abutted to form a whole, and then theother measuring column 211 is driven to move simultaneously when the onemeasuring column 211 moves.

When the purse-string forceps are used for suturing the intestinal tract in the operation process, the forceps handles 100 are held by hands, the twoforceps heads 103 are located at the upper side and the lower side of the intestinal tract, then the two forceps handles 100 are held tightly by hands, and the twoforceps heads 103 are close to each other along the limitingrod 102 to clamp the intestinal tract. When the grindingcylinders 200 on the upper side and the lower side contact the intestinal canal, therack 201 moves in the vertical direction relative to the intestinal canal, thetong head 103 overcomes the elasticity of the second spring and continues to move to one side close to the intestinal canal, when thetong head 103 moves relative to therack 201, thefirst gear 202 is meshed with therack 201, so that thefirst gear 202 rotates along therack 201, and due to the fact that thefirst gear 202 is meshed with the toothed belt of thetong head 103, thefirst gear 202 moves to the edge of thetong head 103 along the toothed belt on thetong head 103 in the rotating process, meanwhile, therack 201 is pushed to move to the edge of thetong head 103, therack 201 drives the grindingcylinders 200 to move, the grindingcylinders 200 roll along the intestinal canal, and the intestinal canal is ground to be flat.

When thefirst gear 202 is disengaged from the toothed belt on theforceps head 103, thefirst gear 202 does not move horizontally along the intestine, at this time, thefirst gear 202 is engaged with thesecond gear 204, thefirst gear 202 starts to drive thesecond gear 204 to rotate, thesecond gear 204 drives thescrew shaft 205 to rotate synchronously, thescrew shaft 205 rotates to drive the two first movingrods 206 thereon to approach each other along thescrew shaft 205 through screw transmission, the first movingrod 206 drives the second movingrod 207 to move synchronously along thescrew shaft 205 through thehinge shaft 215, the second movingrod 207 pushes the measuringcolumns 211 to move through thethird spring 210, and finally the two measuringcolumns 211 on eachforceps head 103 start to approach each other towards the intestine. When the twoforceps heads 103 press the intestinal canal, thefirst spring 212 pulls the measuringcolumn 211 to move relative to the forceps heads 103, so that two measuringcolumns 211 corresponding to the two upper and lower parts of one measuring assembly are connected, and the intestinal canal is located between the two measuring assemblies. As theforceps head 103 continues to approach one side of the intestine, thesecond gear 204 continues to rotate to move the measuringcolumn 211 to the side near the intestine until the measuringcolumn 211 contacts the intestine.

Since the first movingbar 206 and the second movingbar 207 can continue to be translated along thescrew shaft 205 against the elastic force of thethird spring 210 until thehinge shaft 215 is disengaged from the stopper groove of the measuringpost 211, the first movingbar 206 is now disengaged from the restriction of the measuringpost 211. Since thefourth spring 209 between thefixed block 216 and themovable block 208 is released, themovable block 208 moves to a side away from the fixedblock 216 under the pushing of thefourth spring 209 until the first movingrod 206 and the second movingrod 207 are in a horizontal state, themovable block 208 moves to drive thesecond gear 204 to move, so that thesecond gear 204 is disengaged from thefirst gear 202, thesecond gear 204 does not rotate any more, thespiral shaft 205 does not have a transmission effect on the first movingrod 206 any more, and at this time, the measuringcolumn 211 stops moving. The working principle of the limiting mechanism on theother forceps head 103 is the same, so that the distance between the two measuring components is the width of the intestinal canal when the two measuring components are both contacted with the wall surface of the intestinal canal.

Thetelescopic plate 306 is driven to contract in the process that the two measuringcolumns 211 on thesame forceps head 103 are close to each other, so that the length of thetelescopic plate 306 is always the same as the distance between the two measuringcolumns 211, when the measuringcolumns 211 stop moving, the twoforceps heads 103 are continuously driven to clamp the intestinal canal, the forceps head 103 starts to push thetelescopic plate 306 to move towards one side close to the intestinal canal after contacting thetelescopic plate 306, thetelescopic plate 306 pushes the corresponding number of slidingrods 303, and each slidingrod 303 can slide downwards relative to any slidingrod 303, so that thetelescopic plate 306 only pushes part of the slidingrods 303 to move towards one side close to the intestinal canal, and the total length of the pushed slidingrods 303 is approximately consistent with the width of the intestinal canal.

The slidingrod 303 moves to a side close to the intestinal canal along the fixingrod 300, the slidingrod 303 pulls theclamping plate 302 to contract inwards through the twopull rods 304 when moving, the clampingplate 302 contracts inwards to enable thestaples 305 to be buckled with the intestinal canal, and meanwhile, the purse string in thestaples 305 is buckled, so that the purse string can connect a plurality ofstaples 305 buckled into the intestinal canal. After the completion, thehandles 100 are operated to open the twojaws 103, and the intestine is stapled in a purse-string shape since the staple 305 fastened into the intestine can no longer be carried by theclamp 302, and the section of the intestine can be sutured by pulling the purse-string.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The utility model provides an chamber mirror purse-string forceps which characterized in that: comprises a binding clip, a clamping mechanism, a flattening mechanism, a limiting mechanism and a sewing mechanism; the two forceps heads are correspondingly arranged up and down and are used for clamping the intestinal canal, and one surface facing the intestinal canal is a clamping surface in the use process; the clamping mechanism is configured to controllably urge the two tong heads toward and away from each other; the device comprises two flattening mechanisms, wherein each flattening mechanism is arranged on one forceps head and comprises a roller group and a driving assembly, the roller group comprises two rollers, the driving assembly is configured to drive the rollers to abut against the intestinal canal wall in the process that the two forceps heads approach the intestinal canal, then the rollers are driven to roll along the length direction of the intestinal canal after the rollers abut against the intestinal canal wall, and the two rollers of the roller group are driven to roll along one side of the intestinal canal which is far away from each other;

the limiting mechanism comprises a measuring assembly, a transmission assembly and a positioning assembly; each tong head is provided with a slideway arranged along the axial direction of the grinding drum; the number of the measuring assemblies is two, each measuring assembly comprises two measuring columns which are correspondingly arranged up and down, each measuring column is slidably arranged along the slide way and is slidably arranged on the binding clip along the up-down direction, and the first end parts of the measuring columns are connected with the binding clip through first springs; the transmission assembly is configured to drive the two measuring assemblies to approach to two sides of the intestinal canal after the grinding drum rolls to a preset position along the intestinal canal; the positioning assembly is configured to stop movement of the measurement assembly after the second end of the measurement column contacts the sidewall of the intestinal tube;

the stitching mechanism comprises two stitching groups, a purse wire and two braking components, each stitching group is arranged on one jaw and comprises a plurality of stitching nails, and the plurality of stitching nails of each stitching group are sequentially arranged along the direction of the axis of the grinding drum; the purse string passes through a plurality of staples of one staple group and passes out of a plurality of staples of the other staple group; each brake assembly is configured to cause a plurality of staples located between extensions of the two measuring posts to be clasped into the intestine as the two jaws continue to approach the intestine after the measuring posts stop moving.

2. The laparoscopic purse-string forceps according to claim 1, characterized in that: the driving assembly comprises a rack, a first gear, a connecting rod, a mounting seat and a toothed belt; the two ends of the binding clip are provided with sliding grooves which are vertical to the direction space where the axis of the grinding drum is located, the racks are vertically arranged and located at the two ends of the binding clip, the racks are in sliding connection with the binding clip in the vertical direction through second springs, and the racks are provided with sliding blocks which can slide along the sliding grooves; the connecting rod is connected to the lower ends of the two racks corresponding to the front and the back, and the grinding drum is rotatably sleeved on the connecting rod; the mounting seat is slidably arranged along the sliding groove, and the first gear is rotatably mounted on the mounting seat and meshed with the rack; the toothed belt is arranged on the clamping surface of the tong head and is used for being meshed with the first gear.

3. The laparoscopic purse-string forceps according to claim 2, characterized in that: the transmission assembly comprises a sliding rod, a spiral shaft, a second gear and two pushing pieces; the sliding rod is fixedly arranged on the clamping surface of the tong head, and the axis of the sliding rod is parallel to the axis of the grinding drum; the screw shaft is rotatably arranged on the clamping surface of the tong head, the slide bars are arranged in parallel, and the second gear is arranged at one end of the screw shaft and is arranged to be meshed with the first gear after the first gear is disengaged from the toothed belt; each pushing piece comprises a first moving rod and a second moving rod, the first end of the first moving rod and the first end of the second moving rod are hinged to each other, the second end of the first moving rod is sleeved on the screw shaft and is in screw transmission with the screw shaft, the first moving rod and the second moving rod are configured to move close to one side of the measuring column along the axial direction of the screw shaft when the screw shaft rotates, the second end of the second moving rod can slide along the screw shaft, a mounting block is further arranged on the second end of the second moving rod, a third spring is arranged on the mounting block, and the third spring is connected with the measuring column.

4. The laparoscopic purse-string forceps according to claim 3, characterized in that: a vertical groove is formed in the measuring column, and a limit groove is formed in the wall of the vertical groove; the first end part of the first moving rod and the first end part of the second moving rod are hinged through a hinge shaft, the hinge shaft is located in the vertical groove, the hinge shaft is inserted into the limiting groove in an initial state, one sides of the first moving rod and the second moving rod, which are far away from the hinge shaft, and the groove wall of the vertical groove are arranged at intervals, and an included angle is formed between the first moving rod and the second moving rod in the initial state; the positioning assembly comprises a fixed block, a movable block and a fourth spring; the fixed blocks are arranged at two ends of the clamping surface of the binding clip, and two ends of the sliding rod are fixed on the fixed blocks; the movable blocks are arranged at two ends of the binding clip, and two ends of the spiral shaft are rotatably arranged on the fixed blocks; one end of the fourth spring is connected with the fixed block, the other end of the fourth spring is connected with the movable block, and the fourth spring is in a compression state in an initial state.

5. The laparoscopic purse-string forceps according to claim 4, characterized in that: each brake assembly comprises two fixing rods, a fixing plate, a plurality of sliding rods, a plurality of clamping plate groups, a plurality of pull rod groups and a telescopic plate; the two fixed rods are fixedly arranged on the clamping surface of the tong head; the fixing plates are fixedly arranged on the two fixing rods and extend along the direction vertical to the axis of the grinding drum; each clamping plate group comprises two clamping plates, the two clamping plates are arranged on a fixed plate in a relatively sliding manner along the horizontal direction, and a pressure spring is arranged between the two clamping plates of each clamping plate group; the nail is bent and extends from one end to the other end, a clamping opening is formed at the two ends of the nail, the nail can deform when stressed, two positioning holes are formed in the wall surface of the nail, a positioning block is arranged on one side, opposite to the two clamping plates, of each clamping plate group, and the positioning blocks are inserted into the corresponding positioning holes; the fixing plate is provided with a through hole which is communicated up and down; the sliding rods penetrate through the through holes and are slidably mounted on the fixed rods in the vertical direction, and every two adjacent sliding rods are slidably connected in the vertical direction; each pull rod group comprises two pull rods, one end of each pull rod is hinged to the clamping plate, the other end of each pull rod is hinged to the sliding rod, and the two pull rods of each pull rod group are in a horizontal state in an initial state; the expansion plate is arranged in a telescopic mode along the horizontal direction, two ends of each expansion plate are connected to the two measuring columns respectively, and the expansion plate is arranged between the clamp head and the brake assembly in the initial state.

6. The laparoscopic purse-string forceps according to claim 2, characterized in that: fixed cover is still installed to the both sides wall of binding clip, and chamber mirror pocket pincers are still including removing the frame, and the inserted bar is installed to the both sides of removing the frame upper surface, the inserted bar is located to the second spring housing, and one end is connected with removing the frame, and the other end is connected with fixed cover, rack and removal frame fixed connection.

7. The laparoscopic purse-string forceps according to claim 4, characterized in that: one side of the fixed block facing the movable block is provided with a support rod, and the support rod is sleeved with the fourth spring.

8. The endoscopic purse-string forceps according to claim 1, characterized in that: the clamping mechanism comprises a supporting plate, a limiting rod and two clamp handles; the two clamp heads are slidably arranged on the supporting plate along the vertical direction, and one end of each clamp head close to the supporting plate is provided with a hinge lug; the limiting rod is horizontally arranged and fixedly installed in the middle of the supporting plate, a guide groove extending along the length direction of the limiting rod is formed in the limiting rod, and a sliding column capable of sliding along the guide groove is arranged on the guide groove; each forceps handle comprises two horizontal sections and a vertical section connected with the two horizontal sections, wherein the horizontal section of one forceps handle is hinged to one hinge lug, and the middle part of the vertical section is rotatably connected to the sliding column.

9. The laparoscopic purse-string forceps according to claim 1, characterized in that: a first end part of the measuring column is provided with a baffle, one end of the first spring is connected with the baffle, the other end of the first spring is connected with a sliding plate, and the sliding plate is slidably arranged along the tong head; and the forceps head is also provided with a shell.

10. The laparoscopic purse-string forceps according to claim 1, characterized in that: of the two measuring columns of each measuring assembly, the first end of one measuring column is provided with a socket and the first end of the other measuring column is provided with a plug for plugging into the socket.

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