Endoscope specimen collection device for use in human body lumen

Abstract

The application discloses an endoscope through-body cavity operation specimen taking device, which comprises a specimen bag, a hand-held part and a bag supporting rod, and further comprises a pushing mechanism, an endoscope and a laparoscope, the specimen bag is a spindle-shaped specimen bag, a plurality of supporting rods form a spindle shape for wrapping the spindle-shaped specimen bag, a through-path is formed in the middle of the hand-held part, a universal ball is rotatably installed in the through-path, a laparoscope body penetrates through the universal ball and is inserted into the spindle-shaped specimen bag, the endoscope is fixedly installed at one end of the hand-held part close to the bag supporting rod, and the pushing mechanism is used for controlling the opening and closing of the bag supporting rod. The improved spindle-shaped specimen bag is more favorable for accommodating specimens, after being inserted into the endoscope, the human abdominal and pelvic cavity can be better and more conveniently observed, the specimen can be conveniently grabbed, the laparoscope is installed on the hand-held part, the angle direction and distance of the laparoscope can be adjusted, and the specimen can be conveniently sampled and cut.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, more particularly to a device for taking specimens in endoscopic surgery through a human body cavity. BACKGROUND

[0002] Laparoscopic colorectal cancer surgery is a safe and reliable surgical method for treating colorectal cancer. Currently, the tumor and other resected tissues are taken out through the natural body cavity, i.e. the anal rectal passage or the vaginal passage, thereby avoiding the trauma of auxiliary incisions on the abdomen.

[0003] Since the specimen bag for colorectal surgery is usually made of a self-made simple sterile plastic bag, it is easy to break and the residual fragments are left in the pelvic surgery area, which is not conducive to subsequent surgical operations. The end of the traditional specimen bag entering the anus cannot be opened and closed automatically, and it needs the assistance of others to adjust and open the specimen bag under laparoscopy, which is difficult to coordinate, time-consuming and has the possibility of loosening. During the process of taking out the specimen, the specimen is twisted into a ball and accumulated at the abdominal wall, and the liquid in the intestine overflows, which can easily cause pollution and tumor metastasis. The current specimen bag is a lateral open type, and the colorectal specimen is not easy to put in. At the same time, the volume of the existing specimen bag is small and cannot accommodate larger specimens. SUMMARY

[0004] The purpose of the present application is to provide a device for taking specimens in endoscopic surgery through a human body cavity, which is convenient to operate, easy to take out the specimen bag and avoids liquid overflow.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows: a device for taking specimens in endoscopic surgery through a human body cavity, comprising a specimen bag, a hand-held part and a bag supporting rod, further comprising a pushing mechanism, an endoscope and a laparoscopic scissors, the specimen bag is a spindle-shaped specimen bag, both ends of the spindle-shaped specimen bag are open, and a loop of elastic rope is wound on the inner wall of both ends of the spindle-shaped specimen bag, the hand-held part is cylindrical, the bag supporting rod comprises at least four circumferentially arranged supporting rods, one end of the supporting rod is movably hinged and installed at the end position of the outer wall of the hand-held part, the end of the supporting rod close to the hand-held part is arranged in a bent shape, and a plurality of supporting rods form a spindle shape wrapping the spindle-shaped specimen bag, an operating channel is formed in the middle of the hand-held part and extends through both ends, a universal ball is rotatably installed in the operating channel, the laparoscopic scissors are inserted into the spindle-shaped specimen bag through the universal ball, the endoscope is fixedly installed at the end of the hand-held part close to the bag supporting rod, and the pushing mechanism is located at the end of the hand-held part away from the bag supporting rod, and the pushing mechanism is used to control the opening and closing of the bag supporting rod.

[0006] Preferably, a slide is formed in the inside of the hand-held part at a position outside the operating channel, the slide extends through both ends of the hand-held part, a negative pressure tube is inserted in the slide, one end of the negative pressure tube is connected in communication with an external negative pressure device, and the other end of the negative pressure tube is inserted into the spindle-shaped specimen bag.

[0007] Preferably, the negative pressure pipe is mounted with a suction cup at one end close to the position of the spindle-shaped specimen bag, a hanging disc is fixedly installed inside the suction cup, a plurality of through holes are opened on the surface of the hanging disc in a circumferential direction, a metal filter screen is fixedly installed inside the metal filter screen, and a micro vibration motor is fixedly installed inside the metal filter screen.

[0008] Preferably, a plurality of sliding grooves consistent with the number of supporting rods are opened on the outer side of the handheld part in a circumferential direction, and an inclined support is movably hingedly installed at the bottom of the sliding grooves.

[0009] Preferably, the thrust mechanism comprises a rotating ring and a threaded cylinder, a ring groove is opened on the inner side of the handheld part at a position outside the operation channel, the two ends of the ring groove are respectively penetrated through the sliding groove and the outer end of the handheld part, an internal thread is arranged in the ring groove, the threaded cylinder is fixedly installed on the inner side of the rotating disc, the threaded cylinder is threadedly installed in the ring groove, a plurality of stainless steel push rods are inserted at a position close to the sliding groove inside the ring groove, a first rubidium magnet block is arranged on the inner side of the sliding groove, the first rubidium magnet block is fixedly connected with one end of the stainless steel push rod, a stainless steel block is fixedly installed at one end of the supporting rod and is adsorbed by the first rubidium magnet block, and a ring-shaped rubidium magnet is fixedly installed at the inner end of the threaded cylinder.

[0010] Preferably, a supporting ring is fixedly installed at one end of the handheld part close to the position of the bag supporting rod.

[0011] Preferably, a clamping groove is opened at a position on the inner side of the outer end of the supporting rod, and a screw is installed on the outer end of the supporting rod, which is used for fixing and clamping the edge of the opening at one end of the spindle-shaped specimen bag into the clamping groove.

[0012] Preferably, a plurality of oil grooves are uniformly opened on the outer side surface of the supporting rod along the length direction.

[0013] Preferably, a limiting cylinder is fixedly installed on the inner side of the hanging disc, and the limiting cylinder is sleeved on the surface of the negative pressure pipe.

[0014] Preferably, an arc-shaped groove consistent with the arc of the universal ball is opened on the inner wall of the operation channel, the universal ball is clamped into the arc-shaped groove, a sealing rubber ring is fixedly installed at both ends of the universal ball, and the sealing rubber ring is sleeved on the scissors body.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] The specimen bag is improved to be a spindle-shaped specimen bag with a larger capacity, which is more conducive to containing specimens and is less likely to fall out of the specimen bag during taking out;

[0017] The thrust mechanism can control the opening and closing of the spindle-shaped bag supporting rod, facilitate the opening of the specimen bag, and close the opening of the specimen bag when the specimen bag is taken out, so as to avoid the overflow of the specimen and liquid;

[0018] The endoscope is arranged to avoid additional surgical openings for the patient, and can better and more conveniently observe the abdominal and pelvic cavity of the human body after being placed, and facilitate specimen grabbing.

[0019] The abdominal cavity scissors are installed on the hand-held part, and the angle direction and distance thereof are adjustable, so that the specimen can be conveniently sampled and cut, and the residue can be trimmed, and in the process of taking out the specimen, if there is an obstacle (such as a polyp) in the intestinal tract, the obstacle can be cut to facilitate the smooth taking out of the specimen without being pulled.

[0020] The negative pressure pipe can suck out the exuded liquid or other tumor cell residues after cutting, so as to achieve no cancer residues. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0022] Figure 1 is a structural diagram of a specimen taking device of an endoscope through a human body cavity according to the present application;

[0023] Figure 2 is a sectional view of the hand-held part according to the present application;

[0024] Figure 3 is Figure 2 is an enlarged schematic view of the structure at A in FIG. 4;

[0025] Figure 4 is a structural diagram of a second embodiment of the present application;

[0026] Figure 5 is a structural diagram of a fifth embodiment of the present application;

[0027] Figure 6 is a side view of a hanging disc according to the present application;

[0028] Figure 7 is a structural diagram of a spindle-shaped specimen bag according to the present application;

[0029] Figure 8 is a sectional view of a suction disc according to the present application.

[0030] In the diagram: 1. Handheld part, 11. Operating channel, 12. Arc-shaped groove, 13. Slide groove, 14. Ring groove, 15. Slide track, 16. Support ring, 2. Support rod, 21. Stainless steel block, 22. Diagonal brace, 23. Oil groove, 24. Card slot, 25. Screw, 3. Abdominal scissors, 31. Scissors body, 4. Pushing mechanism, 41. Rotary ring, 42. Threaded cylinder, 43. Neodymium magnet block, 44. Stainless steel push rod, 45. Ring-shaped neodymium magnet, 5. Negative pressure tube, 51. Suction cup, 52. Hanging plate, 53. Limiting cylinder, 54. Through hole, 55. Metal filter screen, 56. Miniature vibration motor, 6. Universal ball, 7. Spindle-shaped specimen bag, 8. Endoscope. Detailed Implementation

[0031] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention. Example

[0032] See Figure 1 , Figure 2 and Figure 7 As shown, this invention provides an endoscopic specimen retrieval device for trans-abdominal surgery, comprising a specimen bag, a handle 1, and a support rod, as well as a pushing mechanism 4, an endoscope 8, and abdominal scissors 3. The specimen bag is a spindle-shaped specimen bag 7 with openings at both ends. An elastic cord is wound around the inner wall of each opening. The handle 1 is cylindrical. The support rod includes at least four circumferentially arranged support rods 2, one end of which is hinged to the outer wall of the handle 1. The end of the support rod near the handle 1 is bent, and the edges and bends of the support rods are rounded to avoid damage to human tissue. The multiple support rods 2 form a spindle shape enclosing the spindle-shaped specimen bag 7. When abdominal surgery is required, the spindle-shaped specimen bag 7 is placed in the support rod, and the surgeon holds the handle 1 and inserts the specimen bag through the anus, rectum, or vagina via the support rod. In the abdominal cavity, by improving the specimen bag to a spindle-shaped specimen bag 7, it is easier to obtain specimens and to contain them. When the spindle-shaped specimen bag 7 is removed, the supporting rod can close one end of the spindle-shaped specimen bag 7, which protects the specimen bag. The spindle-shaped specimen bag 7 is not easily damaged during the process of being removed from the body. In order to facilitate the surgeon's operation, the hand-held part 1 has an operating channel 11 that runs through both ends. A universal ball 6 is rotatably installed in the operating channel 11. The scissor body 31 of the abdominal scissors 3 passes through the universal ball 6 and is inserted into the spindle-shaped specimen bag 7. One end of the scissor body 31 is equipped with a single scissor or a double scissor, which can be used for sampling and cutting. The surgeon swings the abdominal scissors 3 in the external position. At this time, the universal ball 6 also rotates, which can adjust the angle of the scissor body 31, making it easier for the surgeon to cut specimens in different positions. At the same time, the universal ball 6 also plays a sealing role to prevent liquid from overflowing from the hand-held part 1.

[0033] The laparoscope 8 is fixedly installed at one end of the hand-held part 1 close to the position of the bag supporting rod, is connected with an external display screen through a line, and can display the abdominal and pelvic cavity of a human body in real time, so that a surgeon can grasp a specimen.

[0034] The pushing mechanism 4 is located at one end of the hand-held part 1 away from the position of the bag supporting rod, and is used for controlling the opening and closing of the bag supporting rod. When the bag supporting rod is in an open state, it can open one end of the spindle-shaped specimen bag 7, so that the surgical operation can be performed.

[0035] When the bag supporting rod is in a closed state, it is used for insertion and extraction.

[0036] The specific insertion action is that the bag supporting rod is opened through the pushing mechanism 4, then the spindle-shaped specimen bag 7 is put into the bag supporting rod, the two ends of the spindle-shaped specimen bag 7 are connected with the end of the supporting rod 2 and one end of the hand-held part 1 respectively, and then the bag supporting rod is closed through the pushing mechanism 4. At this time, the spindle-shaped specimen bag 7 can be inserted into the abdominal cavity through the hepatoporal anus, rectum or vagina of a human body. During the operation, the bag supporting rod is opened through the pushing mechanism 4, so that the opening of the spindle-shaped specimen bag 7 is opened. The surgeon can adjust the angle of the scissors main body 31 by swinging the abdominal cavity scissors 3 at the external position, so that the surgeon can cut off the specimens at different positions, and the specimens can fall into the spindle-shaped specimen bag 7.

[0037] The specific extraction action is that, after the specimen in the abdominal cavity is cut off, the bag supporting rod is closed through the pushing mechanism 4, so that the bag supporting rod and the spindle-shaped specimen bag 7 can be taken out through the hepatoporal anus, rectum or vagina of a human body.

[0038] Referring to Figure 3 In the embodiment, to ensure that the supporting rod 2 has the angle adjustment function, a sliding groove 13 consistent in number with the supporting rod 2 is formed in the outer side of one end of the hand-held part 1, and an inclined support 22 is movably hingedly installed at the bottom of the sliding groove 13. One end of the supporting rod 2 is inserted into the sliding groove 13, and the upper end of the inclined support 22 is movably hingedly connected with the supporting rod 2.

[0039] In the embodiment, a supporting ring 16 is fixedly installed at one end of the hand-held part 1 close to the position of the bag supporting rod. The supporting ring 16 is used for the installation of the spindle-shaped specimen bag 7, and one end of the spindle-shaped specimen bag 7 can be sleeved on the supporting ring 16 through the elastic rope.

[0040] In the embodiment, an arc-shaped groove 12 consistent in arc with the universal ball 6 is formed in the inner wall of the operation channel 11, the universal ball 6 is clamped into the arc-shaped groove 12, and a sealing rubber ring is fixedly installed at both ends of the universal ball 6 and sleeved on the scissors main body 31. Embodiment

[0041] Referring to Figure 4 As shown in the figure, in order to clean the residues during the operation process after the specimen is removed, a slide 15 is arranged inside the hand-held part 1 outside the operation channel 11, the slide 15 penetrates through both ends of the hand-held part 1, a negative pressure pipe 5 is inserted in the slide 15, one end of the negative pressure pipe 5 is connected with the external negative pressure equipment, and the other end of the negative pressure pipe 5 is inserted in the spindle-shaped specimen bag 7, wherein the external negative pressure equipment is the negative pressure air extraction equipment in the prior art. Embodiment

[0042] Referring to Figure 4 As shown in the figure, due to the size limitation of the hand-held part 1, only one operation channel 11 with a large size can be arranged to adjust the direction angle of the scissors body 31, in order to ensure that the negative pressure pipe 5 can also adjust the angle direction when sucking the residues, in the embodiment, one end of the negative pressure pipe 5 close to the spindle-shaped specimen bag 7 is provided with a suction cup 51, a hanging disc 52 is fixedly installed inside the suction cup 51, a plurality of through holes 54 are arranged on the surface of the hanging disc 52, when it is needed to adjust the direction angle of the negative pressure pipe 5, the scissors body 31 is only needed to be pulled out a certain distance, so that the scissors head is inserted into the through hole 54, and then the scissors body 31 is pushed in again, at this time, the angle direction of the negative pressure pipe 5 can be adjusted by controlling and adjusting the angle direction of the scissors body 31;

[0043] Referring to Figure 8 As shown in the figure, in order to avoid that the tissue specimen enters the negative pressure pipe 5 to form a blockage, a metal filter screen 55 is fixedly installed in the suction cup 51, and the metal filter screen 55 can effectively block the entry of the tissue specimen.

[0044] As the suction cup 51 is located in the human body, the medical staff cannot remove the blocked tissue on the surface of the metal filter screen 55 during the operation process, in order to facilitate the cleaning of the tissue specimen on the metal filter screen 55, a micro-vibration motor 56 is fixedly installed inside the metal filter screen 55, the circuit of the micro-vibration motor 56 is led out through the negative pressure pipe 5 and connected with the external power supply, and the micro-vibration motor 56 can vibrate the metal filter screen 55, so that the tissue can be shaken off from the metal filter screen 55. Embodiment

[0045] In order to realize accurate control of the opening angle of the support rod 2, in the embodiment, the pushing mechanism 4 comprises a rotating ring 41 and a threaded cylinder 42. A ring groove 14 is formed in the handheld part 1 outside the operation channel 11. The ring groove 14 is connected to the sliding groove 13 and the outer end of the handheld part 1 respectively. The ring groove 14 is internally provided with an internal thread. The threaded cylinder 41 is fixedly installed inside the rotating ring 41. The threaded cylinder 41 is threadedly installed in the ring groove 14. A plurality of stainless steel jacks 44 are inserted into the ring groove 14 near the sliding groove 13. The first rubidium magnet block 43 is arranged inside the sliding groove 13. The first rubidium magnet block 43 is fixedly connected to one end of the stainless steel jack 44. The support rod 2 is fixedly installed with a stainless steel block 21 which is attracted by the first rubidium magnet block 43. The threaded cylinder 42 is internally fixedly installed with a ring-shaped rubidium magnet 45. When the rotating ring 41 is rotated, the rotating ring 41 can move forward or backward through the threaded cylinder 42.

[0046] When it is necessary to open the spindle-shaped specimen bag 7, the rotating ring 41 is rotated to move the threaded cylinder 42 forward. At this time, the stainless steel jacks 44 can push the support rod 2. At this time, the support rod 2 can open the spindle-shaped specimen bag 7.

[0047] When it is necessary to take out the device and the spindle-shaped specimen bag 7, the rotating ring 41 is rotated in the opposite direction to move the threaded cylinder 42 backward. Under the attraction of the ring-shaped rubidium magnet 45 and the rubidium magnet block 43, the plurality of support rods 2 can be inwardly closed to seal the opening of the spindle-shaped specimen bag 7. At this time, the device and the spindle-shaped specimen bag 7 can be taken out. Embodiment

[0048] Referring to Figure 5 In order to ensure that the support rod 16 can smoothly open or close the spindle-shaped specimen bag 7 during the opening and closing process, in the embodiment, the outer end of the support rod 2 is internally provided with a clamping groove 24. The support rod 2 is externally provided with a screw 25. The screw 25 is used to fix the edge of the opening of the spindle-shaped specimen bag 7 into the clamping groove 24.

[0049] Further, in the embodiment, a plurality of oil grooves 23 are uniformly formed in the length direction of the outer surface of the support rod 2. During the insertion of the bag support rod, lubricating oil can be applied to the surface of the support rod 2 to play a lubricating role. The oil grooves 23 can store lubricating oil and delay the lubricating time. Embodiment

[0050] In the embodiment, the hanging disc 52 is internally fixedly installed with a limiting cylinder 53. The limiting cylinder 53 is sleeved on the surface of the negative pressure pipe 5 to ensure that the hanging disc 52 has a certain distance from the end of the handheld part 1. The shears body 31 can have a suitable angle and space to be inserted into the through hole 53.

[0051] Although embodiments of the present application have been described in conjunction with the drawings, various modifications and changes can be suggested by persons skilled in the art, and it is intended that the scope of the present application be limited only by the appended claims, unless a different scope is intended.

Claims

1. An endoscopic specimen retrieval device for transcavitary surgery, comprising a specimen bag, a handle, and a support rod, characterized in that: It also includes a pushing mechanism, an endoscope, and abdominal scissors. The specimen bag is a spindle-shaped specimen bag with openings at both ends. An elastic rope is wrapped around the inner wall of each opening at both ends of the spindle-shaped specimen bag. The handle is cylindrical. The bag-supporting rod includes at least four circumferentially arranged support rods. One end of the support rod is movably hinged to the end of the outer wall of the handle. The end of the support rod near the handle is bent. Multiple support rods form a spindle shape that wraps around the spindle-shaped specimen bag. An operating channel is opened in the middle of the handle, which runs through both ends. A universal ball is rotatably installed in the operating channel. The main body of the abdominal scissors passes through the universal ball and is inserted into the spindle-shaped specimen bag. The endoscope is fixedly installed at the end of the handle near the bag-supporting rod. The pushing mechanism is located at the end of the handle away from the bag-supporting rod. The pushing mechanism is used to control the opening and closing of the bag-supporting rod. The outer side of the handheld part is provided with a circumferential groove with the same number of support rods. A diagonal brace is movably hinged to the bottom of the groove. One end of the support rod is inserted into the groove, and the upper end of the diagonal brace is movably hinged to the support rod. The pushing mechanism includes a rotating ring and a threaded cylinder. The inside of the hand-held part has a ring groove on the outside of the operating channel. The two ends of the ring groove pass through the slide groove and the outer end of the hand-held part, respectively. The ring groove is provided with an internal thread. The threaded cylinder is fixedly installed on the inside of the turntable. The threaded cylinder is threadedly installed in the ring groove. Multiple stainless steel push rods are inserted inside the ring groove near the slide groove. A first neodymium magnet block is provided inside the slide groove. The first neodymium magnet block is fixedly connected to one end of the stainless steel push rod. A stainless steel block that is attracted to the first neodymium magnet block is fixedly installed at one end of the support rod. A ring-shaped neodymium magnet is fixedly installed at the inner end of the threaded cylinder. When it is necessary to open the spindle-shaped specimen bag, rotate the rotating ring to move the threaded cylinder forward. At this time, the stainless steel top rod pushes the support rod, and the support rod opens the spindle-shaped specimen bag. When it is necessary to remove the device and the spindle-shaped specimen bag, the rotating ring is rotated in the opposite direction to move the threaded cylinder backward. Under the attraction of the ring-shaped rubidium magnet and the first rubidium magnet block, the multiple support rods are pulled inward, thereby sealing one end opening of the spindle-shaped specimen bag. At this time, the device and the spindle-shaped specimen bag can be removed.

2. The endoscopic specimen retrieval device for trans-human cavity surgery according to claim 1, characterized in that: The handheld part has a slide rail located outside the operating channel. The slide rail runs through both ends of the handheld part. A negative pressure tube is inserted into the slide rail. One end of the negative pressure tube is inserted into an external negative pressure device, and the other end of the negative pressure tube is inserted into a spindle-shaped specimen bag.

3. The endoscopic specimen retrieval device for trans-human cavity surgery according to claim 2, characterized in that: A suction cup is installed at one end of the negative pressure tube near the spindle-shaped specimen bag. A hanging plate is fixedly installed inside the suction cup. Multiple through holes are opened circumferentially on the surface of the hanging plate. A metal filter is fixedly installed inside the suction cup, and a miniature vibration motor is fixedly installed inside the metal filter.

4. The endoscopic specimen retrieval device for trans-human cavity surgery according to claim 1, characterized in that: A support ring is fixedly installed at one end of the hand-held part near the support rod.

5. The endoscopic specimen retrieval device for trans-human cavity surgery according to claim 1, characterized in that: A slot is provided on the inner side of the outer end of the support rod, and a screw is installed on the outer end of the support rod. The screw is used to fix the edge of the opening at one end of the spindle-shaped specimen bag into the slot.

6. The endoscopic specimen retrieval device for trans-human cavity surgery according to claim 1, characterized in that: Multiple oil grooves are evenly distributed along the length of the outer surface of the support rod.

7. The endoscopic specimen retrieval device for trans-human cavity surgery according to claim 3, characterized in that: A limiting cylinder is fixedly installed inside the hanging plate, and the limiting cylinder is sleeved on the surface of the negative pressure pipe.

8. The endoscopic specimen retrieval device for trans-human cavity surgery according to claim 1, characterized in that: The inner wall of the operating channel has an arc-shaped groove that matches the curvature of the universal ball. The universal ball is inserted into the arc-shaped groove, and sealing rings are fixedly installed at both ends of the universal ball. The sealing rings are fitted onto the scissor body.

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