Detailed Description
In order to explain the technical contents, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the invention is as follows: set up the transparent sleeve pipe of a stereoplasm, set up the slant track on the transparent sleeve pipe and with the straight track of slant track intercommunication, make the cutting knife retract or stretch out transparent sleeve pipe, through the single cutting depth of the terminal accurate control cutting knife of size of slant track to through the straight track control cutting knife at length direction's ascending cutting orbit, improve the operation success rate of once.
Referring to fig. 1 to 5, the invention provides an endoscopic precise incision knife, which comprises a transparent casing 2 and a cutting knife 1, wherein an inclined rail 21 and a straight rail 22 which are matched with the shape of the cutting knife 1 and are communicated with each other are sequentially arranged on the transparent casing 2, the inclined rail 21 extends from one end of the transparent casing 2 and is communicated with the side surface, and the straight rail 22 extends to the other end of the transparent casing 2 along the axial direction of the transparent casing 2.
Further, the cutting knife 1 comprises a positioning portion 11 and a needle head portion 12, the width of the positioning portion 11 is greater than the width of the needle head portion 12, the inclined rail 21 on the transparent sleeve 2 comprises a first rail 211 matched with the positioning portion 11 in shape, and a second rail 212 matched with the needle head portion 12 in shape, the first rail 211 is communicated with the second rail 212, the first rail 211 is arranged in the transparent sleeve 2, the second rail 212 is communicated with the side face from one end face of the transparent sleeve 2 in an inclined manner, and the cross-sectional shape of the straight rail 22 is the same as the shape of the tail end of the inclined rail 21.
As can be seen from the above description, the width of the positioning portion 11 on the cutting knife 1 is greater than the width of the needle head portion 12, the positioning portion 11 is adapted to the shape of the first rail 211, the needle head portion 12 is adapted to the shape of the second rail 212, the first rail 211 is located in the transparent casing 2, the second rail 212 is obliquely communicated to the side surface from the end surface of one end of the transparent casing 2, the cutting knife 1 is completely located in the transparent casing 2 at one end of the transparent casing 2, when the cutting knife 1 advances from the end surface of one end of the transparent casing 2 to the other end along the oblique rail 21, the positioning portion 11 is blocked in the first rail 211 and is always located in the transparent casing 2, the front end of the needle head portion 12 obliquely extends to the outside of the transparent casing 2 along the second rail 212, the rear end of the needle head portion 12 is connected to the positioning portion 11 and still located in the transparent casing 2, so as to realize the control of the extension and retraction of the cutting knife 1 to the transparent casing 2; lean on transparent sleeve 2's side on the position that the stomach and intestine pipeline needs the cutting, the length that cutting knife 1 stretches out transparent sleeve 2 is cutting depth of cutting knife 1 promptly, through the terminal size of control slant track 21, realize the accurate control to cutting knife 1 cutting depth, when cutting knife 1 advances to transparent sleeve 2's the other end along straight track 22, realize the orbit control along length direction to cutting knife 1, effectively prevent phenomena such as patient's heavy bleeding or need many times cutting that operation doctor's maloperation arouses, the success rate of performing the operation is improved.
Furthermore, the positioning part 11 and the needle head part 12 of the cutting knife 1 are cylindrical and are arranged perpendicular to each other, one end of the needle head part 12 is connected with the side wall of the positioning part 11, and the other end is hemispherical.
As can be known from the above description, the diameter of the positioning part 11 of the cutting knife 1 is larger than the diameter of the needle head part 12, so that the width of the positioning part 11 is larger than the width of the needle head part 12, the structure is reasonable, the processing operation is convenient, and the cutting knife 1 can be effectively clamped in the first track 211 and the second track 212 and can not run out of the transparent sleeve 2; the other end of the needle head part 12 is an outwardly extending end, and is hemispherical in shape, so that the accidental injury to human tissues due to the sharp needle head part 12 can be avoided.
Further, the cutting device further comprises a steel wire 3, a hose 4 and a steel wire expansion piece 5, wherein the steel wire 3 penetrates through the hose 4, one end of the hose 4 is connected with one end of the transparent sleeve 2, the other end of the hose is connected with the steel wire expansion piece 5, one end of the steel wire 3 is connected with the cutting knife 1, and the other end of the steel wire is connected with the steel wire expansion piece 5.
As can be known from the above description, the steel wire 3 is worn to establish in the hose 4, and the hose 4 plays the direction usefulness to the motion of steel wire 3, and the concertina movement of steel wire 3 is realized to steel wire expansion bend 5, and the concertina movement of steel wire 3 drives 1 concertina movement of cutting knife, has realized the reciprocating motion of cutting knife 1, and is rational in infrastructure, the simple operation.
Further, the steel wire expansion piece 5 comprises a handle sliding part 51 and a handle fixing part 52, the handle sliding part 51 is slidably connected with the handle fixing part 52, the other end of the hose 4 is connected with the handle fixing part 52, and the other end of the steel wire 3 is connected with the handle sliding part 51.
It can be known from the above description that handle sliding part 51 on the steel wire expansion piece 5 can slide for handle fixed part 52, handle fixed part 52 drives hose 4 and transparent sleeve 2 and removes the suitable position in the stomach intestine, handle sliding part 51 slides for the handle, it slides for hose 4 to drive steel wire 3, steel wire 3 drives cutting knife 1 and slides for transparent sleeve 2, and is rational in infrastructure, realize cutting knife 1 for transparent sleeve 2's sliding motion, and through the cutting of control handle sliding part 51 control cutting knife 1 and withdraw the action.
Furthermore, an electrified connector connected with the other end of the steel wire 3 is arranged on the handle sliding part 51, and the electrified connector is further connected with an external current generator.
As can be known from the above description, the current generator of peripheral hardware is connected with the other end of steel wire 3 through the circular telegram joint, and cutting knife 1 is connected to the one end of steel wire 3, and then the electric current that current generator sent reaches cutting knife 1 through circular telegram joint, steel wire 3, realizes cutting the stomach and intestine pipeline through the electric current method.
Further, the transparent sleeve 2 is a hard plastic tube.
As can be known from the above description, the transparent sleeve 2 is the stereoplasm plastic tubing, guarantees that the cutting knife 1 guarantees the life of transparent sleeve 2 for the gliding accuracy of transparent sleeve 2, and transparent sleeve 2 is convenient for see through the X line, can not shelter from people's sight to be convenient for observe the position and the action of cutting knife 1.
Further, the transparent sleeve 2 has a cylindrical shape.
As can be seen from the above description, the transparent cannula 2 has a cylindrical shape, which has the advantage of being easily inserted into the stomach and intestine.
Further, the diameter of the transparent sleeve 2 is 2-3 mm, and the length is 1.5-2 cm.
As can be seen from the above description, the transparent casing 2 has a small volume, and although it is hard material, it will not damage the stomach and intestine, and will not scratch the narrow stomach and intestine tract.
Further, the transparent sleeve comprises a marking ring 6 and a soft connecting piece 7, wherein the marking ring 6 is a circular ring body in shape, the marking ring 6 is sleeved at the tail end of the soft connecting piece 7, and the head end of the soft connecting piece 7 is connected with the other end of the transparent sleeve 2.
As can be seen from the above description, the other end of the transparent sleeve 2 is also connected with the soft connecting piece 7 and the marking ring 6, the soft connecting piece 7 has strong adaptability to the internal environment of the gastrointestinal tract of the human body and is not destructive, and the marking ring 6 has light-tight property and is used for marking the positions of the soft connecting piece 7 and the cutting knife 1, so that the position where the soft connecting piece 7 reaches at present can be observed conveniently.
Furthermore, the tail end of the soft connecting piece 7 is provided with a conical surface.
As can be seen from the above description, the soft connecting piece 7 firstly enters the stomach and intestine of the human body, and the tail end of the soft connecting piece 7 is provided with the conical surface, so that the soft connecting piece 7 can conveniently extend into the stomach and intestine of the human body, and the structure is reasonable and the use is convenient.
Further, the marking ring 6 is an X-ray opaque ring.
As can be seen from the above description, the soft connecting piece 7, the transparent sleeve 2 and the hose 4 are made of transparent materials and are permeable to X rays, the cutting knife 1 is made of steel materials and is impermeable to X rays, so that the position of the cutting knife 1 can be observed conveniently during an operation, and the cutting knife 1 can be aligned conveniently; the marking ring 6 is arranged as a loop of opaque X-rays, so that when the human body is observed from the outside of the human body by X-rays, the position where the tip of the device reaches the human body at present can be conveniently observed.
Referring to fig. 1 to 4, a first embodiment of the present invention is:
an accurate incision sword of scope, including transparent sleeve 2 and cutting knife 1, there are oblique orbit 21 and straight orbit 22 that the shape adaptation of said cutting knife 1 and communicate each other sequentially on said transparent sleeve 2, said oblique orbit 21 extends to the side from one end of said transparent sleeve 2, said straight orbit 22 extends to the other end of the transparent sleeve 2 along the axial direction of said transparent sleeve 2; the cutting knife 1 comprises a positioning part 11 and a needle head part 12, the width of the positioning part 11 is larger than that of the needle head part 12, an inclined rail 21 on the transparent sleeve 2 comprises a first rail 211 matched with the positioning part 11 in shape and a second rail 212 matched with the needle head part 12 in shape, the first rail 211 is communicated with the second rail 212, the first rail 211 is arranged in the transparent sleeve 2, the second rail 212 is communicated to the side face from the end face of one end of the transparent sleeve 2 in an inclined manner, and the cross-sectional shape of the straight rail 22 is the same as the shape of the tail end of the inclined rail 21.
Referring to fig. 1 to 4, a second embodiment of the present invention is:
on the basis of the first embodiment, the positioning part 11 and the needle head part 12 of the cutting knife 1 are cylindrical and are arranged perpendicular to each other, one end of the needle head part 12 is connected with the side wall of the positioning part 11, and the other end is hemispherical.
Preferably, the transparent sleeve 2 is a hard plastic tube, the transparent sleeve 2 is cylindrical, the diameter of the transparent sleeve 2 is 2-3 mm, and the length of the transparent sleeve is 1.5-2 cm.
Referring to fig. 1 to 5, a third embodiment of the present invention is:
on the basis of the first embodiment or the second embodiment, the cutting device further comprises a steel wire 3, a hose 4 and a steel wire expansion piece 5, wherein the steel wire 3 penetrates through the hose 4, one end of the hose 4 is connected with one end of the transparent sleeve 2, the other end of the hose 4 is connected with the steel wire expansion piece 5, one end of the steel wire 3 is connected with the cutting knife 1, and the other end of the steel wire 3 is connected with the steel wire expansion piece 5; the steel wire expansion piece 5 includes handle sliding part 51 and handle fixed part 52, handle sliding part 51 with handle fixed part 52 sliding connection, the other end of hose 4 with handle fixed part 52 is connected, the other end of steel wire 3 with handle sliding part 51 is connected, be equipped with on the handle sliding part 51 with the circular telegram joint that the other end of steel wire 3 links to each other, the circular telegram joint still is connected with the current generator of peripheral hardware.
Referring to fig. 1 to 5, a third embodiment of the present invention is:
on the basis of the third embodiment, the marking device further comprises a marking ring 6 and a soft connecting piece 7, the marking ring 6 is a circular ring body in shape, the marking ring 6 is sleeved at the tail end of the soft connecting piece 7, the head end of the soft connecting piece 7 is connected with the other end of the transparent sleeve 2, and a conical surface is arranged at the tail end of the soft connecting piece 7.
For example, if the esophagus becomes scar due to the operation of the esophagus and the esophagus becomes narrow due to the scar, the human body cannot eat food, the cutting knife 1 cuts the scar to enlarge the esophagus, and the specific operations are as follows: when in use, the soft connecting piece 7 firstly enters the stomach and intestine, the front end parts of the transparent sleeve 2 and the hose 4 connected with the soft connecting piece 7 also enter the esophagus, the soft connecting piece 7 is extended into the proper position of the esophagus according to actual requirements, and the positions reached by the soft connecting piece 7 and the transparent sleeve 2 can be observed through the marking ring 6; leaning the transparent sleeve 2 against a scar to be cut, pressing down the handle sliding part 51, wherein the handle sliding part 51 sequentially drives the steel wire 3 and the cutting knife 1 to slide downwards, the cutting knife 1 slides obliquely along the oblique track 21 from one end of the transparent sleeve 2 and extends out of the side surface of the transparent sleeve 2, and when the transparent sleeve 2 is positioned at the tail end of the oblique track 21, the length of the cutting knife 1 extending out of the transparent sleeve 2 is the cutting depth of the cutting knife 1; starting a current generator, wherein the current generated by the current generator reaches the cutting knife 1 through the electric connector and the steel wire 3, and the cutting knife 1 extends into a scar, so that the cutting operation on one depth is realized; if the degree of depth of cutting knife 1 cutting is not enough, can be with inside cutting knife 1 retraction to transparent sleeve pipe 2, transparent sleeve pipe 2 is close to toward scar inside again, and the operation of repeated above-mentioned degree of depth cutting is once cut again, and until cutting knife 1 reachs suitable degree of depth, the degree of depth of the single cutting scar of length control that stretches out transparent sleeve pipe 2 through cutting knife 1 avoids appearing the esophagus perforation phenomenon. According to the requirement of actually cutting scars, if the cutting knife 1 is used for cutting in the length direction, firstly, the cutting in the depth is carried out, then, the cutting in the length direction is carried out, and the specific operation is as follows: the transparent sleeve 2 leans against a scar to be cut, the cutting knife 1 extends out of the transparent sleeve 2 to perform primary deep cutting, then the current generator is continuously started, the cutting knife 1 slides to the other end of the transparent sleeve 2 along the straight track 22, track control of the cutting knife 1 in the cutting length direction is achieved, and the current generator is closed; if the length of the straight track 22 cannot meet the requirement of the scar cutting length, the handle sliding part 51 is pulled upwards to pull the cutting knife 1 back to the tail end of the inclined track 21, the transparent sleeve 2 is continuously fed along the cutting length direction of the cutting knife 1, then the current generator is started, the handle sliding part 51 is pressed down again, the cutting knife 1 slides to the other end of the transparent sleeve 2 along the straight track 22 for the second time, and the scar cutting length is prolonged; repeating the above actions until reaching the required scar cutting length, finishing the operation, pulling the handle sliding part 51 upwards to pull the cutting knife 1 back to one end of the transparent sleeve 2 to be hidden, and pulling the hose 4, the soft connecting piece 7 and the marking ring 6 out to the outside of the stomach and intestine. In practical use, the transparent casing 2 with the inclined rail 21 and the straight rail 22 with proper sizes can be designed and manufactured according to the required cutting depth in advance, and the cutting depth and the cutting length can be adjusted according to practical conditions during operation.
In conclusion, the endoscopic precise incision knife provided by the invention is characterized in that the oblique track 21 capable of sliding movement of the cutting knife 1 is arranged in the hard transparent sleeve 2, when the cutting knife 1 is not used for cutting, the cutting knife 1 is hidden at one end of the transparent sleeve 2, when the cutting knife 1 is used for cutting, the cutting knife 1 firstly slides along the oblique track 21 to extend out of the transparent sleeve 2 and then slides along the straight track 22 to cut the gastrointestinal pipeline to be cut, the positioning part 11 of the cutting knife 1 is clamped in the first track 211 to limit the extending length of the cutting knife 1, the length of the cutting knife 1 extending out of the transparent sleeve 2 is the single cutting depth of the cutting knife 1, the cutting knife 1 slides along the straight track 22 in the cutting length direction, the track is controllable, the steel wire expansion piece 5 drives the cutting knife 1 to slide relative to the transparent sleeve 2 through the steel wire 3, the steel wire 3 is arranged in the hose 4 in a penetrating manner, the soft connecting piece 7 provided with the marking ring 6 is further arranged at the front end of the transparent sleeve 2, the structure is reasonable and stable, the structure is convenient and convenient for observation in an operation, the condition of X-line irradiation, the endoscope can be used in the narrow gastrointestinal pipeline, the cutting depth and can be suitable for controlling the cutting depth of the cutting knife 1, and the cutting track of the cutting track 1 along the cutting track direction, and is convenient and convenient operation.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.