Mechanical decompression type drug delivery and minimally invasive surgical operation device for colorectal anusTechnical Field
The invention relates to the technical field of anorectal surgical medical equipment, in particular to a device for mechanical decompression type drug delivery and minimally invasive surgical operation of colorectal anus.
Background
The colorectal anus drug delivery is a treatment method for directly delivering drugs to focus positions, is commonly used for treating rectal diseases, is used for rectal minimally invasive surgery, such as trans-anal minimally invasive surgery, performs surgery by using a single-port laparoscope operation platform and utilizing natural open anus of a human body, and has the advantages of small wound, quick recovery and the like.
The patent with the application number of CN202321928133.6 discloses a medicine delivery structure for colorectal anus surgery, which comprises a shell, a fixed block, a sealing ring, a butt joint piece, a push rod and a through hole, wherein the fixed block is arranged in the shell, the sealing ring is connected with the outer wall of the fixed block, the butt joint piece is arranged on the right side surface of the fixed block, the push rod is arranged on the right side of the butt joint piece, a plug is fixed on the left side surface of the fixed block, the plug is conical, and the through hole is formed in the left end of the shell. This a send medicine structure for colorectal anus surgery cleans the disinfection to anus department through the disinfection cotton on the piece of cleaning, will clean the piece and tear after the disinfection, stretches into the patient with the left end of casing and can send the medicine, has improved the flexibility when this send medicine mechanism uses.
When the traditional equipment is used for medicine feeding, if the medicine quantity is controlled improperly and direct contact between the medicine and the intestinal canal cannot be controlled effectively, the medicine can directly stimulate the intestinal mucosa and generate extra pressure, so that discomfort is caused to a patient, in addition, the peristaltic movement and movement of the intestinal canal during operation can obviously reduce the operation precision, because the movement of the intestinal canal can change the position of an operation target, the instability can also increase the operation difficulty, the operation time is prolonged, and the operation error and the complication risk are increased.
In view of this, we propose a device for mechanical decompression type drug delivery and minimally invasive surgical procedures for colorectal anus.
Disclosure of Invention
The present invention aims to provide a device for mechanical pressure-reducing drug delivery and minimally invasive surgical procedures for colorectal anus, solving the problems set forth in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The device for mechanical decompression type drug delivery and minimally invasive surgery operation of colorectal anus comprises an insertion tube, a rotating tube arranged in the insertion tube, a driving part for driving the rotating tube to rotate, a rotating part arranged in the insertion tube and a piston part moving along with the rotation of the rotating tube;
the insertion tube comprises a fixed tube body, an inner sleeve body arranged in the fixed tube body and a limit ring body arranged on the inner wall of the inner sleeve body, wherein the wall of the fixed tube body is provided with an observation groove which is internally and externally communicated;
the rotating pipe comprises a rotating pipe body and fixed ring teeth arranged on the bottom surface of the rotating pipe body;
The driving part comprises a first knob, a transmission rod rotating along with the first knob, a rotating rod rotating along with the rotation of the transmission rod and a rod end gear arranged at the top end of the rotating rod;
The rotating part comprises a second knob, a wire wheel rotating along with the second knob, a liquid blocking plate moving along with the rotation of the wire wheel and a pressure spring pushing the liquid blocking plate to move towards the observation groove through self elasticity;
The piston part comprises a limit sliding block which moves along with the integral rotation of the rotary pipe and a piston plate which moves along with the limit sliding block.
In the technical scheme of the invention, a limiting chute for providing a moving interval for the internal structure of the piston part is formed on the inner side wall of the fixed pipe body, a drawing chute is formed above the limiting chute on the inner side wall of the fixed pipe body, a ventilation chute communicated with the drawing chute is formed in the fixed pipe body, an air suction hole communicated with the ventilation chute is formed in the peripheral position of the observation chute on the outer side wall of the fixed pipe body, and a pipe top chute and a rotating chute communicated with the pipe top chute are formed in the top wall of the fixed pipe body.
In the technical scheme of the invention, the inner sleeve body is welded and fixed with the fixed pipe body, the top surface level of the inner sleeve body is the same as that of the limit ring body, a plurality of through holes for feeding surgical instruments and medicines are formed in the inner sleeve body, and the limit ring body and the fixed pipe body are integrally formed.
In the technical scheme of the invention, the rotary pipe body is rotationally connected to the inside of the fixed pipe body, a butt joint groove matched with the observation groove in size is formed in the outer side wall of the rotary pipe body, a pipe wall convex groove is formed in the outer side pipe wall of the rotary pipe body, and the fixed ring teeth are welded and fixed on the bottom surface of the rotary pipe body bottom surface ring plate.
In the technical scheme of the invention, the first knob is fixedly clamped with the transmission rod, the transmission rod is rotatably connected to the pipe wall of the fixed pipe body, and a worm is sleeved on the outer side wall of the transmission rod close to the center.
In the technical scheme of the invention, the rotating rod is rotationally connected to the bottom pipe wall of the fixed pipe body, the rod end gear is welded and fixed at the end position of the rotating rod, the rod end gear is meshed with the fixed ring gear, and the worm wheel meshed with the worm is clamped at the bottom end position of the rotating rod.
In the technical scheme of the invention, the top end of the second knob is welded with the outer extension pipe, the outer extension pipe is rotationally connected to the inside of the inner sleeve body, the pipe wall at the top end of the inner side of the outer extension pipe is clamped and connected with the protective lens, the wire wheel is clamped and fixed on the pipe wall, close to the top end, of the outer extension pipe, and the wire wheel is rotationally connected to the inside of the rotating groove.
In the technical scheme of the invention, the liquid blocking plate is connected in the inside of the pipe top chute in a sliding way, a connecting rope is connected between the liquid blocking plate and the wire wheel, one end of the connecting rope is wound on the outer side of the wire wheel, one end of the pressure spring is welded on the grooved groove wall on the inner side of the liquid blocking plate, and the other end of the pressure spring is welded on the groove wall of the pipe top chute.
In the technical scheme of the invention, the limit sliding block is connected in a sliding manner in the limit sliding groove, a block lug is welded on the outer side wall of the limit sliding block, and the end part of the block lug extends into the pipe wall convex groove.
In the technical scheme of the invention, the piston plate is slidably connected in the drawing groove, a plurality of regularly distributed connecting rods are clamped between the piston plate and the limiting slide block, one end of each connecting rod is clamped on the top surface of the limiting slide block, and the other end of each connecting rod is clamped on the bottom surface of the piston plate.
Compared with the prior art, the invention has the beneficial effects that:
1. This a device for colorectal anus's mechanical decompression formula send medicine and minimally invasive surgery operation, through the observation groove cooperation of fixed body can pivoted rotatory pipe, let medical personnel can directly observe polyp or medicine application region through the through-hole on the interior sleeve pipe body in the inside of fixed body, improved the intuitiveness and the accuracy of operation to when the cooperation drainage tube is loaded in the medicine, the medicine can contact with the inboard pipe wall of fixed body, thereby reduce the direct stimulation of medicine and intestinal, thereby reduce intestinal pressure, alleviate patient's uncomfortable.
2. The mechanical decompression type medicine delivery and minimally invasive surgery operation device for colorectal anus can drive the structure inside the piston part to change in the rotation process of the rotating tube, and suction force is generated at the position of the suction hole through the piston plate, so that the peristaltic movement and movement of intestinal tracts in a surgery area can be reduced, the surgery stability is improved, and errors and risks in the surgery process are reduced.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
FIG. 2 is a schematic cross-sectional view of the overall structure of the present invention.
FIG. 3 is a schematic cross-sectional view of a portion of the structure of the present invention.
FIG. 4 is a schematic cross-sectional view of an insertion tube according to the present invention.
Fig. 5 is an enlarged schematic view of the portion a of fig. 4 in accordance with the present invention.
FIG. 6 is a schematic cross-sectional view of an insertion tube according to the second embodiment of the present invention.
Fig. 7 is a schematic structural view of a rotating tube according to the present invention.
Fig. 8 is an enlarged schematic view of section B of fig. 7 in accordance with the present invention.
Fig. 9 is a schematic structural view of a driving part in the present invention.
Fig. 10 is a schematic sectional view of a rotating part according to the present invention.
Fig. 11 is a schematic structural view of a piston portion in the present invention.
Reference numerals illustrate:
100. The pipe comprises an insertion pipe, a fixed pipe body, 111, an observation groove, 112, a limit sliding groove, 113, a drawing groove, 114, a ventilation groove, 115, an air suction hole, 116, a pipe top sliding groove, 117, a rotating groove, 120, an inner pipe body, 130 and a limit ring body;
200. A rotary tube; 210, a rotating pipe body, 211, a butt joint groove, 212, a pipe wall convex groove, 220 and a fixed ring tooth;
300. 310 parts of driving parts, 320 parts of first knobs, 320 parts of transmission rods, 330 parts of rotation rods, 340 parts of rod end gears, 350 parts of worms, 360 parts of worm wheels;
400. the rotary part 410, the second knob 420, the outer extension tube 430, the wire wheel 440, the liquid blocking plate 450, the protective lens 460, the connecting rope 470 and the pressure spring;
500. The piston part comprises 510 parts of a piston, 510 parts of a limit sliding block, 520 parts of a block lug, 530 parts of a connecting rod, 540 parts of a piston plate.
Detailed Description
The following description of the embodiments of the present invention will be made more apparent, and the embodiments described are only some, but not all, of the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 11, the present embodiment provides the following technical solutions:
The device for mechanical decompression type drug delivery of colorectal anus and minimally invasive surgery operation comprises an insertion tube 100, a rotating tube 200 arranged in the insertion tube 100, a driving part 300 for driving the rotating tube 200 to rotate, a rotating part 400 arranged in the insertion tube 100 and a piston part 500 moving along with the rotation of the rotating tube 200;
in this embodiment, as shown in fig. 4-6, the insertion tube 100 includes a fixed tube body 110, an inner tube body 120 disposed inside the fixed tube body 110, and a limiting ring body 130 disposed on the inner tube wall of the inner tube body 120, where the tube wall of the fixed tube body 110 is provided with an observation slot 111 that is penetrated inside and outside;
Specifically, a limiting chute 112 for providing a moving section for the internal structure of the piston portion 500 is formed on the inner wall of the fixed pipe body 110, a drawing chute 113 is formed above the limiting chute 112 on the inner wall of the fixed pipe body 110, a ventilation slot 114 communicated with the drawing chute 113 is formed in the fixed pipe body 110, an air suction hole 115 communicated with the ventilation slot 114 is formed in the peripheral position of the observation slot 111 on the outer wall of the fixed pipe body 110, and a pipe top chute 116 and a rotating slot 117 communicated with the pipe top chute 116 are formed in the top wall of the fixed pipe body 110.
Further, the inner sleeve body 120 is welded to the fixed tube body 110, the top surface level of the inner sleeve body 120 is the same as the top surface level of the limit ring body 130, a plurality of through holes for feeding surgical instruments and medicines are formed in the inner sleeve body 120, and the limit ring body 130 and the fixed tube body 110 are integrally formed.
Further, the space between the fixed tube 110 and the inner tube 120 is used to provide space for medicine storage and minimally invasive surgery, the observation groove 111 is used to expose the medicine application area and the surgery area inside the fixed tube 110, the limit sliding groove 112 and the drawing groove 113 are both used to provide sliding space for the structure in the piston 500, the piston 500 moves integrally to generate negative pressure in the ventilation groove 114, and the intestinal wall is adsorbed on the outer wall of the air suction hole 115, the tube top sliding groove 116 and the rotating groove 117 are used to provide placing space for the piston 500, and the limit ring 130 is used to limit the rotating space of the rotating tube 200.
In this embodiment, as shown in fig. 7-8, the rotating tube 200 includes a rotating tube body 210 and fixed ring teeth 220 disposed on the bottom surface of the rotating tube body 210;
Specifically, the rotating pipe body 210 is rotatably connected to the inside of the fixed pipe body 110, a docking slot 211 matched with the size of the observation slot 111 is formed on the outer side wall of the rotating pipe body 210, a pipe wall convex slot 212 is formed on the outer pipe wall of the rotating pipe body 210, and the fixed ring teeth 220 are welded and fixed on the bottom surface of the ring plate on the bottom surface of the rotating pipe body 210.
Further, the rotating tube body 210 is used for preventing the intestinal canal at the distal end of the rectum from abutting against the observation groove 111 when the fixed tube body 110 is inserted into the anus of the patient, so as to prevent the insertion of the fixed tube body 110, the tube wall convex groove 212 is used for changing the overall position of the piston part 500 when rotating, and the fixed ring teeth 220 are used for cooperating with the driving part 300 to drive the rotating tube 200 to rotate integrally.
In this embodiment, as shown in fig. 9, the driving part 300 includes a first knob 310, a transmission rod 320 rotated together with the first knob 310, a rotation rod 330 rotated with the rotation of the transmission rod 320, and a rod end gear 340 provided at a top end position of the rotation rod 330;
Specifically, the first knob 310 is fastened and fixed with the transmission rod 320, the transmission rod 320 is rotatably connected to the pipe wall of the fixed pipe body 110, and a worm 350 is sleeved on the outer side wall of the transmission rod 320 near the center.
Further, the rotating rod 330 is rotatably connected to the bottom pipe wall of the fixed pipe body 110, the rod end gear 340 is welded and fixed at the end position of the rotating rod 330, the rod end gear 340 is meshed with the fixed ring gear 220, and the worm wheel 360 meshed with the worm 350 is clamped at the bottom end position of the rotating rod 330.
Further, the first knob 310 in the driving portion 300 is twisted to drive the transmission rod 320 to rotate, and to drive the worm 350 to rotate, and after the worm 350 contacts the worm wheel 360, the worm wheel 360 and the rotation rod 330 are driven to rotate, so that the rod end gear 340 at the end of the rotation rod 330 cooperates with the fixed ring gear 220 in the rotation tube 200 to drive the rotation tube 200 to rotate, and the docking slot 211 is moved to the position of the observation slot 111.
In this embodiment, as shown in fig. 10, the rotating part 400 includes a second knob 410, a wire wheel 430 rotated together with the second knob 410, a liquid blocking plate 440 moved along with the rotation of the wire wheel 430, and a pressure spring 470 pushing the liquid blocking plate 440 to move toward the observation groove 111 by self-elasticity;
Specifically, the top end of the second knob 410 is welded with an outer tube 420, the outer tube 420 is rotatably connected to the inside of the inner tube body 120, a protective lens 450 is clamped on the tube wall at the top end of the inner side of the outer tube 420, a wire wheel 430 is clamped and fixed on the tube wall of the outer tube 420 close to the top end, and the wire wheel 430 is rotatably connected to the inside of the rotating groove 117.
Further, the liquid blocking plate 440 is slidably connected to the inside of the pipe top chute 116, a connection rope 460 is connected between the liquid blocking plate 440 and the wire wheel 430, one end of the connection rope 460 is wound on the outer side of the wire wheel 430, one end of the pressure spring 470 is welded on the grooved groove wall on the inner side of the liquid blocking plate 440, and the other end is welded on the groove wall of the pipe top chute 116.
Further, twisting the second knob 410 drives the outer tube 420 to rotate integrally, and the rotating wire wheel 430 is matched with the connecting rope 460 to pull the liquid blocking plate 440 to move in the tube top chute 116, and when the fixed tube 110 is pulled out, the hemostatic forceps will not fall from the incision of the intestinal wall, and the protective lens 450 is used for preventing the lens of the camera in the outer tube 420 from being polluted by the intestinal wall mucous membrane.
In this embodiment, as shown in fig. 11, the piston part 500 includes a stopper slider 510 that is displaced as the rotation tube 200 integrally rotates, and a piston plate 540 that moves together with the stopper slider 510;
Specifically, the limit slider 510 is slidably connected to the inside of the limit chute 112, a block bump 520 is welded on the outer sidewall of the limit slider 510, and an end of the block bump 520 extends to the inside of the pipe wall convex groove 212.
Further, the piston plate 540 is slidably connected to the inside of the drawing slot 113, a plurality of regularly distributed connecting rods 530 are clamped between the piston plate 540 and the limiting slider 510, one end of each connecting rod 530 is clamped on the top surface of the limiting slider 510, and the other end is clamped on the bottom surface of the piston plate 540.
Further, after the rotation tube 200 integrally rotates, the contact position between the block bump 520 in the piston portion 500 and the tube wall convex groove 212 on the rotation tube body 210 is continuously changed, so as to drive the limit slider 510 to move downward in the limit chute 112, and further drive the piston plate 540 to move downward in the drawing slot 113 through the connecting rod 530, so that negative pressure is generated in the ventilation slot 114, and the intestinal wall around the rectal administration area is adsorbed on the outer side of the air suction hole 115.
In use, the device for mechanical pressure-reducing medication delivery and minimally invasive surgical procedures of the present invention for colorectal anus allows medical personnel to directly insert the fixed tube 110 into the rectum from the anal site of the patient;
Then, medical staff observe the situation in the rectum of the patient through a camera arranged at the inner side end part of the outer tube 420, and adjust the position of the fixed tube body 110, so that the observation groove 111 on the fixed tube body 110 covers the area where the medicine is required to be applied at the rectum;
Then, the first knob 310 in the driving part 300 is twisted to drive the transmission rod 320 to rotate, and the worm 350 is driven to rotate, and after the worm 350 contacts with the worm wheel 360, the worm wheel 360 is driven to rotate with the rotation rod 330, so that the rod end gear 340 at the end of the rotation rod 330 is matched with the fixed ring gear 220 in the rotation tube 200 to drive the rotation tube 200 to rotate, and the docking slot 211 is moved to the position of the observation slot 111;
When the rotary tube 200 rotates integrally, the contact position between the block bump 520 in the piston part 500 and the convex groove 212 on the upper tube wall of the rotary tube body 210 is continuously changed, so as to drive the limit slider 510 to move downwards in the limit chute 112, and further drive the piston plate 540 to move downwards in the drawing slot 113 through the connecting rod 530, thereby generating negative pressure in the ventilation slot 114, and adsorbing the intestinal wall around the rectal administration area outside the inhalation hole 115;
After that, medical staff sends the medicine into the space between the fixed tube body 110 and the inner tube body 120 through the through hole on the inner tube body 120 and fills up the space, and then circulates the medicine in the space between the fixed tube body 110 and the inner tube body 120 through the drainage tube;
when the minimally invasive surgery is required, the polyp on the rectum is resected through the through hole on the inner sleeve body 120, and hemostasis is performed through the hemostatic forceps;
Then, the second knob 410 is twisted to drive the outer tube 420 to rotate integrally, so that the rotating wire wheel 430 is matched with the connecting rope 460 to pull the liquid blocking plate 440 to move in the tube top sliding groove 116, and the hemostatic forceps cannot fall from the incision of the intestinal wall when the fixed tube 110 is pulled out.
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. The scope of the invention is intended to be defined by the description and equivalents thereof.